Halogen-free flame-retardant polyethylene/polyester heat-shrinkable tube and preparation method thereof

The invention provides a halogen-free flame-retardant polyethylene/polyester heat-shrinkable tube and a preparation method thereof. The tube comprises the following components by weight: 65 to 85% of polyethylene, 2 to 20% of polyester, 0.1% to 20% of a toughening agent, 10% to 20% of a flame retardant and 0.1% to 5% of a nucleating agent. The invention has the following beneficial effects: recoverability is obtained; processing process is simple; cost is saved; environmental protection and reliability are achieved; meanwhile, the tube has good flame retardant property, weatherability, heat resistance, electrical insulating property and mechanical property, and can be applied in a plurality of fields like protection and seal of electric connectors.

Punching die used for passenger car silencer tube body bulging

The invention relates to a punching die used for passenger car silencer tube body bulging. The punching die comprises a bottom plate, stand columns, a top plate, a concave die and a convex die. The stand columns are arranged on the bottom plate, the top plate is arranged at the upper ends of the stand columns, the concave die is formed on the top plate and corresponds to the convex die, the convex die is fixed on the bottom surface of a convex die installation plate, and the concave die comprises a fixed part and a movable part, wherein the fixed part is fixed to the top plate, and the fixed part and the movable part are hinged through a hinge and locked through a locking device. The concave die of the die for tube body bulging is designed to be of a split structure, namely, the concave die is designed into two halves, then the two halves are hinged through the hinge and locked through the locking device, so that the concave die is opened from the side face, a workpiece is convenient to ...

Production process of coated nut meat

The invention relates to the technical field of food processing, in particular to a production process of coated nut meat, which comprises the following steps: removing the skin of the nut meat, drying, coating with coating liquid, seasoning and baking. Soft skins on the surfaces of nut kernels are removed through the pretreatment mechanism, then the nut kernels are dried, the surfaces of the nut kernels are wrapped in the processing bin, and finally the wrapped surfaces of the nut kernels are seasoned and baked in the baking bin. The wrapped nut meat is baked and seasoned at the same time, the flavor and taste of the wrapped nut meat are further enriched, meanwhile, continuous production of the wrapped nut meat is achieved, the production efficiency of the wrapped nut meat is remarkably improved, the production process of the wrapped nut meat is conducted in a closed container, and the production cost is reduced. And the coated nut meat is not easily polluted by the external environment ...

A urea scale removing device used for a bottom tail tube of a flue gas denitration urea pyrolyzing furnace

A urea scale removing device used for a bottom tail tube of a flue gas denitration urea pyrolyzing furnace is disclosed. The urea scale removing device comprises an electrothermal decomposer and an automatic control device. The electrothermal decomposer comprises a lower flange (1), an upper flange (2) and a cylinder (3). The lower flange (1) and the upper flange (2) are respectively disposed at the two ends of the cylinder (3). The middle part of the cylinder (3) is provided with pipe heaters (4). The automatic control device is a junction box (6) disposed at the cylinder (3). The panel of the junction box (6) is provided with pipe heater binding posts (7) and an equipment grounding protection binding post (8). One end of each of the pipe heaters (4) is connected to one of the pipe heater binding posts (7). The urea pyrolyzing furnace adopts a separated type design, thus facilitating installation, maintenance and overhaul of the pipe heaters. Compared with traditional ribbon heater insulation ...

Expansable wide-spectrum safety scanning analysing system and its implementing method

A method for reducing the energy consumption of flue gas desulfurization process system and a nano-lubricant

A method for reducing the energy consumption of flue gas desulfurization process system and a nano-lubricant, the method spraying and adding nano-lubricant in limestone slurry in the desulfuration system, wherein, the adding amount is 800-1000mg/L; the nano-lubricant containing the following three kinds of substances: (1) polyol ester which is a water-soluble lignin lipid with an adding volume of 150-250 +- 20% mg / L; (2) a dispersing agent, with a molecular formula of (NaPO [3]) [6], with the adding amount of 10-20 +- 5% mg / L; (3) nano-fillers, in a formula SiO [2] with the amount of 100-150 +- 10 % mg / L. In the wet limestone desulfuration process, by adding nanometer lubricant in the system, the invention can effectively improve the desulfuration efficiency of the desulfuration system, can reduce the energy consumption about 10%, and can reduce equipment abrasion. The invention can be applied to thermal power plant limestone/lime gypsum wet flue gas desulfurization process.

Heat insulation type wire insulation shield

The invention discloses a heat insulation type wire insulation shield. The shield is of a double-layer shielding structure, the inner layer is a heat insulation layer, and the outer layer is an insulation layer; the inner layer and the outer layer are connected through a connecting block; the connecting block is a heat-resistant flame-retardant connecting block; installation chutes are formed in the two ends of the shield and connected with other shields in a matched mode; lifting holes are formed in the insulation layer and the heat insulation layer; the heat insulation layer is made of a heat insulation flame-retardant material; an anti-skidding pad is arranged on the inner side of the heat insulation layer; the connecting block is arranged on the outer side of the heat insulation layer and a sliding block is arranged at the upper end of the connecting block. The heat insulation type wire insulation shield can be used for achieving the wire insulation shielding function in the direct ...

Method for enabling webcam to have access to wireless network

The invention discloses a method for enabling a webcam to have access to a wireless network. The method comprises the following steps that wireless network ssids and passwords are converted into binary codes; a password recognition program of the webcam is started; the binary codes are expressed through flicker of a flash lamp of a mobile device before the webcam, the webcam recognizes the binary codes and converts the binary codes into the wireless network ssids and passwords, the wireless network ssids and the passwords are input, the webcam has accesses to the network, and the password recognition program is closed. By the adoption of the design of the method, according to the photosensitive principle of a photosensitive unit of the webcam, the photosensitive unit can sense whether light exists or not, binary coding is carried out on the SSIDs and the passwords, the SSIDs and the passwords can be transmitted to the camera through the method of flicker under the light condition and the ...

Desulfurization gypsum cyclone base flow three-position distribustion device and use method thereof

The invention relates to a desulfurization gypsum cyclone base flow three-position distribustion device and a use method thereof. A base flow distributor case rectangle part at the upper part of the device and a base flow distributor case conical discharging hopper at the lower part of the device form a base flow distributor case; the base flow distributor case is communicated with a feed pipe at the upper part of the device, a base flow liquid outlet is arranged at the lower part of the base flow distributor case, the feed pipe is connected with an electric push rod, the base flow distributor case rectangle part is a rectangle tank body, a row of 3 inverted-cone-shaped base flow distributor case conical discharging hoppers are arranged at the lower part of the base flow distributor case where a row of 3 base flow liquid outlets are provided, and the 3 base flow liquid outlets are respectively communicated with a NO.1 vacuum belt fulter, a NO.2 vacuum belt fulter and an absorption tower ...

Information sharing method and device, storage medium and electronic device

The embodiment of the invention provides an information sharing method and device, a storage medium and an electronic device.The method comprises the steps that first information received in a first information window of a terminal is obtained, and the first information is preset to be automatically displayed in a second information window; and displaying all or part of contents of the first information in the second information window. Through the embodiment of the invention, the technical problem that the information sharing efficiency is relatively low in the prior art is solved.

Method for separating hydrogen sulfide from sewage

The invention discloses a method for separating hydrogen sulfide from sewage, relates to the field of environmental engineering and chemical engineering, and in particular relates to a method for separating hydrogen sulfide from sewage in oil and gas fields by using an emulsion liquid membrane. The method for separating the hydrogen sulfide from the sewage comprises three steps, namely preparation of emulsion liquid, sewage desulfurization and separation of the emulsion liquid and the sewage. By adopting the method disclosed by the invention, treatment process equipment is simple, and only are a stirrer and a separator needed; the hydrogen sulfide separation speed is high, short time is consumed, and only is half an hour needed in each separation process; 'inverse concentration gradient' can be realized in the separation process, so that the separation efficiency is higher; the separation process can realize reuse of materials, so that the treatment cost can be effectively saved.

Overhead transmission line prevents damper device that slides

The utility model discloses an overhead transmission line prevents damper device that slides, including two articulated tong arms, be equipped with nut card hole on one of them tong arm, be equipped with bolt card hole on another tong arm, the grip of tong arm is passed through the elastic mechanism and is connected, the elastic mechanism lies in the spring between the handle including bolt, the suit that passes the handle on the bolt. Do not change the installation method of traditional damper, increased holding of damper and puted forth effort, prevent the axial displacement of damper, solved once only that the damper slides, the problem of droing, the multiple district section of having avoided sliding, droing at the damper, the wearing and tearing of leading the ground wire have effectually been avoided to the damper phenomenon that - recovering - was slided - is resumeed of sliding.

Nut tasty cooking device based on ultrasonic waves

The invention relates to a nut tasty cooking technology, in particular to an ultrasonic-based nut tasty cooking device which is used for solving the problems that nuts float above the liquid level of cooking tasty liquid, so that the nuts are difficult to tasty, and the amount of liquid contained in the tasty nuts is large, so that the subsequent drying effect is influenced. Supporting frames are integrally formed on the two sides of the lower surface of the lower cooking bin. Through the arrangement of the fixed pressing plate and the rotary pressing plate, nuts floating above the liquid level of cooking tasty liquid are pressed to be below the liquid level, full contact with the cooking tasty liquid is facilitated, the tasty effect is improved, the air pressure in the cooking bin is increased, the tasty effect of the nuts in the cooking bin is further improved, and the cooking efficiency is improved. The stewed and tasty nuts are shaken in the rotating process of the soaking cage, so ...

Method for implementing safety scanning component mechanism

Iron and oil removing filter for drainage

An iron and oil removing filter for drainage comprises a shell body and at least one filter element arranged on a separating plate in the shell body, wherein the shell body comprises an upper closure head, a lower closure head, a water inlet, a water outlet and a discharge port, and the filter element is a three-layer composite filter element comprising an inner layer, a medium layer and an outer layer. The inner layer of the composite filter element takes a vertical tubular titanium alloy sintered filter element as a framework, the medium layer is composed of activated charcoal fibre felt winding round the titanium alloy sintered filter element, and the outer layer uses a stainless screen to fix and integrate the activated charcoal fibre felt and the titanium alloy sintered filter element. The iron and oil removing filter for drainage combines actions of activated charcoal adsorption and ultra-micro filtering to effectively remove expensive metallic ions including various oils, particulates ...

Desulfurization gypsum cyclone base flow three-position distribution device and use method thereof

The invention relates to a desulfurization gypsum cyclone base flow three-position distribution device and a use method thereof. A base flow distributor case is formed by a base flow distributor case rectangle part at the upper part and a base flow distributor case conical discharging hopper at the lower part; the base flow distributor case is communicated with a feed pipe at the upper part, a base flow liquid outlet is arranged at the lower part of the base flow distributor case, the feed pipe is connected with an electric push rod, the base flow distributor case rectangle part is a rectangle tank body, a row of 3 inverted-cone-shaped base flow distributor case conical discharging hoppers are arranged at the lower part of the base flow distributor case where a row of 3 base flow liquid outlets are provided, and the 3 base flow liquid outlets are respectively communicated with a NO.1 vacuum belt dehydrator, a NO.2 vacuum belt dehydrator and an absorption tower; the electric push rod is ...

Weather-resistant alkali-resistant anticorrosive paint and preparation method thereof

The invention discloses a weather-resistant alkali-resistant anticorrosive coating and a preparation method thereof, and the weather-resistant alkali-resistant anticorrosive coating comprises the following components in percentage by weight: 33-50% of paint component and 50-67% of curing agent component, wherein the paint component is prepared from the following raw materials in percentage by weight: 10 to 30 percent of chlorinated polyether resin, 20 to 40 percent of xylene, 0.2 to 3 percent of mixture of high-molecular carboxylic acid and modified polysiloxane, 0.3 to 1 percent of polyamide wax, 15 to 40 percent of pigment, 0.1 to 1 percent of drier and 8 to 20 percent of butyl acetate; and the component of the curing agent is hexamethylene diisocyanate. The coating is simple in preparation method and low in cost, can be constructed and directly sprayed in a conventional environment, has good weather resistance and alkali resistance, and can be used in an alkaline environment for a long ...

Automatic production allocation system for high and medium pressure gas fields

The invention discloses an automatic production allocation system for high and medium pressure gas fields. The automatic production allocation system comprises a porous bottom-hole regulator, a natural gas flow meter mounted on an output pipeline of the porous bottom-hole regulator, a processing unit, a stepping motor and a control center PLC. The control center PLC is used for setting a natural gas yield value for each well, converting the natural gas yield values into current signals and sending the current signals to the processing unit for storage. The natural gas flow meter detects natural gas flow in the output pipeline of the porous bottom-hole regulator, converting detected natural gas flow signals into current signals and sending the current signals to the processing unit. The processing unit compares the current signals from the natural gas flow meter with the stored current signals and controls the stepping motor to drive the porous bottom-hole regulator to conduct clockwise ...

Extra-high voltage large crossing span ground wire obstacle-surmounting outgoing device

The invention discloses an extra-high voltage large crossing span ground wire obstacle-surmounting outgoing device. The outgoing device comprises two vertical rods, the lower ends of the two vertical rods are connected through a lower cross bar, and the middle portions of the two vertical rods are connected through a middle cross bar. The upper end of each vertical rod is provided with a wiring wheel. Each vertical rod is sleeved with a rotation sleeve, and the vertical rod is in clearance fit with the rotation sleeve. The middle cross bar is provided with two fixing rods, and a seat is arranged on the two fixing rods. A supporting bar is arranged between the two fixing rods and the lower cross bar, and a foot lever is fixed to the supporting bar. The upper portion of each vertical rod is provided with a protection ring. By employing the outgoing device, a problem that the wiring wheels cannot pass damping wire clamps is solved, a problem that the movement is influenced due to the friction ...

Angle welding process for box beam by using automatic angle welding trolley

The invention relates to a fillet welding process for a box beam by using an automatic fillet welding trolley, which belongs to the technical field of workpiece welding and comprises the following steps: S1, in the manufacturing process of a plate unit structure of the box beam, welding is carried out by using the automatic fillet welding trolley according to the weld leg size AWS01.1-2010; s2, an automatic fillet welding trolley is adopted for welding an outer fillet weld; s3, when the four edges of the box beam are formed, an automatic welding trolley is adopted, the size of a welding leg refers to AWS D1.1-2010, a welding-back method is adopted for welding, and welding is conducted from the middle to the two sides; s4, ensuring that the free edge of a wing plate is greater than 20mm when a side suction type automatic fillet welding trolley is used for an external fillet weld; and S5, when a flat suction type automatic angle welding trolley is used for the inner angle welding seam of ...

Inside lining reinforced structure is established to electrified operation cover of cable tunnel

The utility model belongs to the technical field of tunnel and underground works design and construction, especially, relate to an inside lining reinforced structure is established to electrified operation cover of cable tunnel, the cover is established the inside lining reinforced structure and is included former hunch portion, former side wall, bottom plate bed course, inverted arch, back arch portion, inside lining side wall, cable support, cable, pavement bottom plate, is under construction according to following step: (1 )Stull in the middle of erect at the tunnel middle part, (2 )Downwards bottom excavation to the former bottom plate in tunnel, (3 )Pour the structure inverted arch, pour the pavement bottom plate on the inverted arch, (4 )Shift the cable to tunnel middle part position, (5 )Lay the waterproof layer on former tunnel inner wall surface, back arch portion, inside lining side wall are built to the mould, (6 )Resume cable support and cable, pour the pavement structure. The ...

Combined water stop system of waterproof concrete wall

A combined water stop system of a waterproof concrete wall comprises a centrally-buried type water stop belt and a water swelling water stop rod. The centrally-buried type water stop belt is fixed to a framework of steel reinforcement of the waterproof concrete wall, located in the middle of the framework of steel reinforcement of the waterproof concrete wall in the thickness direction, and stretches from one end of a horizontal construction joint of the waterproof concrete wall to the other end of the horizontal construction joint, and the center, in the width direction, of the centrally-buried type water stop belt and the horizontal construction joint of the waterproof concrete wall are at the same height. The water swelling water stop rod is fixed to a concrete interface on the lower portion of the horizontal construction joint of the waterproof concrete wall and stretches from one end of the horizontal construction joint of the waterproof concrete wall to the other end of the horizontal ...

Three -layer subway station canopy structure is secretly dug on rock texture layer

The utility model belongs to the technical field of tunnel and underground works design and construction, especially, relate to a three -layer subway station canopy structure is secretly dug on rock texture layer, including main part domes, reinforced concrete inverted arch, be equipped with the two layers of side wall in underground, secret three -layer side wall between main part domes, the reinforced concrete inverted arch, the main part domes include two lining middle sections in the hunch portion, two lining side sections in the hunch portion, hunch portion no. 2 lining side sections are in the both sides in two lining middle sections in the hunch portion, the reinforced concrete inverted arch includes two lining middle sections of inverted arch, two lining side sections of inverted arch, longeron at the bottom of the top in two lining middle sections of inverted arch is equipped with two, the bottom in two lining middle sections in the hunch portion is equipped with two top longerons ...

Rotary table cutting type removing device for suspended objects of power transmission line

The invention discloses a rotary table cutting type removing device for suspended objects of a power transmission line. The rotary table cutting type removing device for the suspended objects of the power transmission line comprises a hook. The lower end of the hook is connected with the upper end of a fixing frame. The middle portion of the fixing frame is connected with a rotating wheel through a rotating shaft. Cutters are arranged on the rotating wheel. The lower portion of the fixing frame is connected with a fan-shaped driving wheel through a rotating shaft. The two ends of the fan-shaped driving wheel are each connected with a force bearing frame. Each force bearing frame is provided with a pull rope. The fan-shaped driving wheel is connected with the rotating wheel. According to the rotary table cutting type removing device for the suspended objects of the power transmission line, foreign matter on a grounding line is removed by operating an insulating rope through ground personnel ...

Drag reduction type extra -high voltage is big stridees across shelves ground wire surmounting ware of being qualified for next round of competitions

The utility model discloses a drag reduction type extra -high voltage is big stridees across shelves ground wire surmounting ware of being qualified for next round of competitions, it contains two montant, two the lower extreme and the middle part of montant link together the two through sheer pole and well horizontal pole respectively the upper end of montant is provided with away the line wheel respectively, the cover is equipped with and rotates the cover on the montant, the two clearance fit, be provided with the two dead lever on the well horizontal pole, the two be provided with the seat on the dead lever, the two the dead lever with be provided with the bracing piece between the sheer pole, be fixed with the foot rest lever on the bracing piece, the upper portion of montant is provided with the protective ring. The utility model provides a walk the difficult point that the line wheel can not be marchd through the influence of the difficult problem of damping line fastener and the ...

Movable integrated temporary water supply pump station

The utility model discloses a movable integrated temporary water supply pump station, which comprises a moving device, and a pump set, a frequency conversion control cabinet, an aeration tank and an ozone generator which are arranged on the moving device, the pump set comprises a water supply device and a supercharging device, and the frequency conversion control cabinet is respectively connected with the pump set and the ozone generator through lines. The supercharging device comprises a water pump, an air pressure tank, a pressure gauge and valves, the water pump, the air pressure tank and the pressure gauge are connected through pipelines, the valves are arranged on the pipelines, and the valves comprise butterfly valves for controlling fluid flow and check valves for preventing media from flowing back. The water tank, the pump set and the control cabinet are combined into a whole, all pipeline and line connection can be completed after leaving a factory, the whole equipment is additionally ...

Long-wall structure concrete curing device and curing method thereof

The invention relates to a long-wall structure concrete curing device and a curing method thereof. The curing device comprises a moisturizing device, a heat-preservation device and a temperature measurement device, wherein the moisturizing device comprises a spraying pipe, and the spraying pipe is fixed through a split bolt of a formwork at the top of a wall; the heat-preservation device comprises a plastic film and a heat-preservation material, the spraying pipe and the wall are wrapped with the plastic film, and the plastic film is wrapped with the heat-preservation material; the temperature measurement device comprises a center temperature measurement point and a surface temperature measurement point, the center temperature measurement point and the surface temperature measurement point are buried at the same elevation of the wall, and the center temperature measurement point and the surface temperature measurement point are connected with a numerical control temperature measurement ...

Full -automatic gaseous constant voltage sampling device of gas chromatography

The utility model relates to an use the sample of gas sampling bag and sacculus and adopt gas chromatography to carry out full -automatic gaseous constant voltage sampling device. A full -automatic gaseous constant voltage sampling device of gas chromatography, includes horizontal floor and places the gas sampling device on horizontal floor, horizontal floor is last be equipped with with the support post of the perpendicular installation of horizontal floor, the support post is equipped with slip track groove in one side, and the slip track is connected with the extrusion component through the rack pole on the groove, be equipped with vertical trompil groove on the homonymy support post, the extrusion component stretches out vertical trompil groove, the gas sampling device set up in horizontal floor and extrusion between the component, be equipped with the air duct on this gas sampling device, and this air duct is connected with the ressure measurement controller, the support post opposite ...

Method and system for adjusting video streaming image resolution ratio and code stream

The invention is applicable in the technical field of image treatment, and provides a method, a system and a video playing terminal for adjusting a video streaming image resolution ratio and a code stream. The method comprises the steps of: detecting the size of a video streaming display window in real time; calculating the size of the adjusted video streaming display window; matching an image resolution ratio supported by a video source; and sending the matched image resolution ratio supported by the video source to the video source to acquire a video steam corresponding to the image resolution ratio. In the embodiment of the invention, the size of the video streaming display window is detected in real time; the size of the adjusted window is calculated; the image resolution ratio supported by the video source is matched; and the matched image resolution ratio supported by the video source is sent to the video source to acquire the corresponding video steam. When the size of the video ...

Optical cable clamping device

The invention discloses an optical cable clamping device. The optical cable clamping device comprises an upper clamp plate, a lower clamp plate, a U-shaped ring and annular bolts, wherein one side of the upper clamp plate and one side of the lower clamp plate are connected through the U-shaped ring in hinge mode, U-shaped holes are correspondingly formed in the other side of the upper clamp plate and the other side of the lower clamp plate, one end of each annular bolt is provided with an annulus, the other end of each annular bolt is provided with a thread, the annulus of each annular bolt is arranged in each U-shaped hole of the lower clamp plate and connected with the lower clamp plate in hinge mode through the U-shaped ring, two ends of the U-shaped ring is provided with a double nut respectively, a spacer is arranged between the double nut and the lower clamp plate, the number of the annular bolts is equal to or larger than four, a spacer and a screw cap are arranged on the thread ...

Production process of nut and coarse grain thin pancake with balanced nutrition

The invention relates to the technical field of food processing, in particular to a production process of a nut and coarse grain thin pancake with balanced nutrition, which comprises the following steps: adjusting a forming die cavity, feeding thin pancake raw materials into a forming die, forming the thin pancake in the forming die, and automatically taking out the thin pancake in the forming die. The forming mechanism is arranged in the forming die, the forming mechanism is adjusted according to the specification and size of the produced thin pancake, the forming mechanism is used for controlling the space in the forming die to be the thin pancake specification needed by production, and then raw materials of the thin pancake are sequentially fed into the forming die through the feeding mechanism; after the thin pancakes are formed in the forming die, the thin pancakes in the forming die are taken out through the discharging assembly and then conveyed to the conveying platform, full-automatic ...

Airdrop type unmanned aerial vehicle navigation correction method and system

The invention discloses an air-drop unmanned aerial vehicle navigation correction method and system, and relates to the field of unmanned aerial vehicle navigation. The method comprises the following steps: a mounting stage: a reconnaissance sub-aircraft is loaded by a carrier aircraft to fly, state self-inspection and device error compensation are carried out on an airborne redundant inertial navigation system of the reconnaissance sub-aircraft, and the reconnaissance sub-aircraft enters a heading attitude mode after initial alignment; in the launching stage, the reconnaissance sub-aircraft is separated from the carrier aircraft, two-stage parachute opening is carried out, the heading attitude mode is kept, and heading attitude correction is carried out on the reconnaissance sub-aircraft; in the separation stage, the reconnaissance sub-aircraft is separated from the launching device, the aircraft arms are unfolded after the aircraft leaves the cabin, the attitude and heading mode is switched ...

Halogen-free flame-retardant polyethylene/nylon heat-shrinkable tube and preparation method thereof

The invention provides a halogen-free flame-retardant polyethylene/nylon heat-shrinkable tube and a preparation method thereof. The tube comprises the following components by weight: 65 to 85% of polyethylene, 2 to 30% of nylon, 0.1 to 20% of a toughening agent, 10 to 30% of a flame retardant and 0.1 to 5% of a nucleating agent. The invention has the following beneficial effects: recoverability is obtained; processing process is simple; cost is saved; environmental protection and reliability are achieved; meanwhile, the tube has good weatherability, flame retardant property, heat resistance, electrical insulating property and mechanical property, and can be applied in a plurality of fields like protection and seal of electric connectors.

Anti-disengagement turning tackle for power transmission line

The invention discloses an anti-disengagement turning tackle for a power transmission line. The anti-disengagement turning tackle for the power transmission line comprises a hook body, wherein a wheel carrier is arranged at the lower end of the hook body, a switching wheel is arranged on the wheel carrier, a line containing cavity is formed in one side of the hook body, a connecting rod cavity is formed in the other side of the hook body, the upper end of the line containing cavity is closed, the lower end of the line containing cavity is open, an idler wheel is arranged on the upper portion of the line containing cavity, a connecting rod is arranged in the connecting rod cavity, the upper end of the connecting rod is hinged to the middle of an operating rod, the lower end of the connecting rod is hinged to one end of a closed rod, one end of the operating rod is hinged to the upper end of the hook body, a pulling rope is arranged at the other end of the operating rod, the middle of the ...

Network equipment upgrading method and device, electronic equipment and storage medium

The embodiment of the invention discloses a network equipment upgrading method and device, electronic equipment and a storage medium. The method comprises the following steps: determining a target upgrade package matched with to-be-upgraded network equipment; when a device upgrading state is started, according to the difference between the upgrading sub-file in the target upgrading package and the upgrading sub-file corresponding to the configured upgrading package of the to-be-upgraded network device, an upgrading service pack packaging operation is executed; and controlling the to-be-upgraded network equipment to be upgraded according to a packaging operation result of the upgrade service pack. By adopting the scheme of the invention, different devices are supported to match corresponding upgrade packages, and meanwhile, the size of the software upgrade package of a single device is reduced in the upgrade process, so that a relatively large upgrade file is prevented from being directly ...

Alcohol injection process method for medium and low pressure natural gas collection

The invention provides an alcohol injection process method for medium and low pressure natural gas collection, and belongs to the field of natural gas collection. An outer alcohol transportation and injection pipeline where a methyl alcohol storage tank is connected with a gas gathering station outer transportation pipeline is arranged at a gas gathering station, one end of the outer alcohol transportation and injection pipeline is connected with the methyl alcohol storage tank, and the other end of the outer alcohol transportation and injection pipeline passes through a single-head filling pump and is connected into the gas gathering station outer transportation pipeline; an alcohol injection pipeline from the gas gathering station to a well site is arranged on the gas gathering station, one end of the alcohol injection pipeline is connected with the methyl alcohol storage tank, and the other end of the alcohol injection pipeline passes through a double-head filling pump and then is connected ...

BP neural network-based gas transmission pipeline liquid-carrying critical flow velocity prediction method

The invention relates to a gas transmission pipeline liquid-carrying critical flow velocity prediction method based on a BP neural network. The method comprises the following steps: establishing a geometric model for gas transmission pipeline numerical calculation; extracting characteristic parameters and value ranges influencing the liquid-carrying critical flow velocity of the gas transmission pipeline according to field working conditions; constructing a U80 (806) uniform design table formed by the characteristic parameters; 11 groups of numerical values are randomly combined in the determined value range of the characteristic parameters, and the liquid-carrying critical flow velocity corresponding to the characteristic parameters under the value is solved; using 80 groups of characteristic parameters and the corresponding critical liquid-carrying flow velocity as training sample data, and using a BP neural network to establish a nonlinear mapping function relationship between the critical ...

Iron and oil removing filter for drainage

An iron and oil removing filter for drainage comprises a shell body and at least one filter element arranged on a separating plate in the shell body, wherein the shell body comprises an upper closure head, a lower closure head, a water inlet, a water outlet and a discharge port, and the filter element is a three-layer composite filter element comprising an inner layer, a medium layer and an outerlayer. The inner layer of the composite filter element takes a vertical tubular titanium alloy sintered filter element as a framework, the medium layer is composed of activated charcoal fibre felt winding round the titanium alloy sintered filter element, and the outer layer uses a stainless screen to fix and integrate the activated charcoal fibre felt and the titanium alloy sintered filter element. The iron and oil removing filter for drainage combines actions of activated charcoal adsorption and ultra-micro filtering to effectively remove expensive metallic ions including various oils, particulates ...

Double-liquid-chamber liquid resistance suspension

The invention relates to a double-liquid-chamber liquid resistance suspension and aims to provide a suspension system capable of reducing vibration caused by interference stimulus within multiple frequency band ranges. The liquid resistance suspension mainly comprises an external rubber main spring, an upper connecting bolt connected with the main spring, a supporting spring, an external upper liquid chamber, an external lower liquid chamber, an internal upper liquid chamber, an internal lower liquid chamber, an upper liquid chamber and lower liquid chamber separation plate, an internal rubber main spring, an internal inertia channel, an internal rubber membrane and an external rubber membrane. An external liquid chamber inertia channel and the internal liquid chamber inertia channel which are independent of each other are formed in the upper liquid chamber and the lower liquid chamber separation plate. The external upper liquid chamber and the external lower liquid chamber are communicated ...

Portable electric insulating winch

The invention discloses a portable electric insulating winch. The portable electric insulating winch comprises a motor, a speed reducer, a grinder roll and a battery. The motor, the speed reducer and the grinder roll are arranged on a base in a right triangle mode. The speed reducer is connected with the motor and the grinder roll through a transmission shaft. The motor and the speed reducer are connected with the base through bolts. The grinder roll is connected with the base through two vertical plates. The middle of the grinder roll is provided with the transmission shaft. The two vertical plates are provided with bearings. One end of the transmission shaft is arranged in one bearing, the other end of the transmission shaft penetrates through the other bearing to be connected with the speed reducer, the middle of the grinder roll is provided with a groove, the motor is connected with the battery through a power source control handle, and the base is connected with an iron tower through ...

Novel method for determining pigging period of wet gas pipeline

The invention relates to a novel wet gas pipeline pigging period determination method, which comprises the following steps: under the condition that liquid is not easy to accumulate in a wet gas pipeline, normally pigging according to a conventional pigging period; under the condition that liquid is easy to accumulate in the wet gas pipeline, if the wellhead pressure peak value is greater than 0.9 time of the design pressure P0 of the wet gas pipeline or the maximum pigging amount is greater than 0.9 time of the design volume of a slug flow trap at the tail end of the wet gas pipeline in the pigging process, the pigging amount is not greater than 0.9 time; a pigging period is calculated by taking a wellhead pressure peak value equal to 0.9, a wet gas pipeline design pressure, a maximum pigging slug amount equal to 0.9 and a wet gas pipeline tail end slug flow trap design volume in the pigging process as boundaries; if the peak value of the wellhead pressure in the pigging process is smaller ...

Oil field alternate water injection and CO2's device

The utility model provides an oil field alternate water injection and CO2's device, relates to oil field injection device field, in particular to alternate water injection and CO2's device. Do not have the defect that to annotate the ground installation of CO2, water injection in turn to current oil field, provide an alternate water injection and CO2's device, should and pour into CO2 header (10) into including the notes liquid CO2 system, injector pump (8) that connect gradually, pour into CO2 header (10) joint injection well into, its characterized in that: still be equipped with water injection system and injected water header (9), water injection system, other end joint injection water header (9), injected water header (9) joint injection well are connected to injector pump (8) one end, wherein water injection system and annotate the ascending pipe line of liquid CO2 system and injector pump (8) on all be equipped with trip valve (14). The device can solve the has channeling problem ...

Watchdog resetting system and resetting method thereof

The invention is suitable for the technical field of self restoration and provides a watchdog resetting system and a resetting method thereof. The watchdog resetting system comprises a CPU (Central Processing Unit), a watchdog unit and a resetting unit which are sequentially connected and also comprises an operating system unit, an operating system monitoring unit, one or more work process units and one or more work process monitoring units, wherein the operating system monitoring unit is used for ensuring that the CPU is controlled not to carry out dog feeding on the watchdog unit in a timing period when monitoring the breakdown of the operating system unit; and the work process monitoring units are used for ensuring that the CPU is controlled not to carry out dog feeding on the watchdog unit in a timing period when monitoring the breakdown of the work process units. In the invention, the start of the CPU, the working state of the operating system unit and working states of some main work ...

Decorative plate vertical face connecting method

A connecting method for vertical faces of decorative boards comprises the steps that back face blind holes and board side face holes are formed in the decorative boards; blind hole bolts are inserted into back blind holes, and side pin shafts are inserted into side holes of the decorative plates and are in screwed connection with the blind hole bolts; a pendant seat is fixed on the wall surface corresponding to the position of the decorative plate pendant; structural injection glue is injected into the side face holes and the back face blind holes of the decorative plate, and curing and curing are conducted. And finally, all the decorative plate hanging pieces correspond to all the hanging piece seats and are mutually connected in a hanging mode. The decoration plate has the advantages that the appearance effect of the decoration plate is guaranteed, the influence on the stress of the decoration plate is small under the certain repairing effect on the decoration plate after the decoration ...

Composite wing unmanned aerial vehicle mode conversion method and device

The invention provides a composite wing unmanned aerial vehicle mode conversion method and device. The method comprises the steps that the current actual air speed of a composite wing unmanned aerial vehicle is obtained; presetting a conversion speed lower limit, a conversion speed upper limit and a rotor conversion weight, and calculating the rotor conversion weight through the current actual air speed, the conversion speed lower limit and the conversion speed upper limit; obtaining a conversion mode of the composite wing unmanned aerial vehicle; in the rotor wing-fixed wing conversion mode, the attitude and the angular rate are controlled through the rotor wing conversion weight, and then control surface distribution of the rotor wing and control surface distribution of the fixed wing are controlled; when the unmanned aerial vehicle is in a fixed wing-rotor wing conversion mode, the position, the speed, the attitude and the angular rate are controlled through the rotor wing conversion ...

Passive fluidic resistor suspension with equivalent mechanical structure

The invention relates to a passive fluidic resistor suspension with an equivalent mechanical structure, and belongs to the technical field of engine supporting structures. The passive fluidic resistor suspension with the equivalent mechanical structure mainly comprises an external rubber mainspring, an upper connecting bolt connected with the external rubber mainspring, an external supporting spring, an upper fluid chamber, a lower fluid chamber, an inner gas chamber, an inner spring, a mass block and the like, wherein the inner spring and the mass block are arranged in the inner gas chamber. The upper fluid chamber which tightly abuts against the upper end face of a partition board between the upper fluid chamber and the lower fluid chamber, an external gas chamber and the inner gas chamber are arranged in sequence from outside to inside. The lower fluid chamber tightly abuts against the lower end face of the partition board between the upper fluid chamber and the lower fluid chamber.

Cover is shielded in thermal -insulated type wire insulation

The utility model discloses a cover is shielded in thermal -insulated type wire insulation, shielding the cover and adopting the bilayer to shield the structure, the inlayer is insulating layer, the outer insulating layer that is, the inlayer with adopt the connecting block to connect between the skin, the connecting block is heat -resisting fire -retardant connecting block, the both ends of shielding the cover all are equipped with the installation spout, the spout covers the cover cooperation with other to be connected, the insulating layer with all set up on the insulating layer and promote the hole, the insulating layer adopts thermal -insulated flameresistant material to make, the insulating layer inboard sets up the slipmat, the connecting block sets up in the insulating layer outside, the upper end of connecting block sets up the slider. The utility model discloses the wire insulation that can be used to direct current earthing pole circuit live working in -process is shielded, has ...

Wireless carrier RF transceiver and frequency butt joint method

A radio carrier RF T-R device and a frequency butt method is composed of a remote controller and a receiver, the remote controller has a micro-controller, working instruction, a laser pointer, a keyboard, a mouse, power supply management and multi-frequency channel RF emit circuit and infrared integral receiving circuit, the receiver has a micro-controller, working instruction, power supply management, multi-frequency channel radio frequency receiving circuit and infrared signal emit circuit part. The frequency butt method is formed by an infrared signal emit process and receive and RF instruction transmission process to connect frequencies of the remote controller and receiver by infrared information, the receiver removes coincidence interference by device identification information.

Dissoluble concrete reserved-hole mold and construction method thereof

The invention discloses a dissoluble concrete reserved-hole mold and a construction method thereof and belongs to the field of building construction. In the dissoluble concrete reserved-hole mold, side molds include a non-water-soluble hard plate side mold and a water-soluble hard plate side mold which are mutually and adjacently arranged to form a cylinder provided with an upper opening and a lower opening, and a bottom mold is a water-soluble hard plate bottom mold and seals the opening formed in the lower end of the cylinder provided with the upper opening and the lower opening. The non-water-soluble hard plate side mold is a plywood, or a wooden mold plate or a plastic plate, and the water-soluble hard plate side mold and the water-soluble hard plate bottom mold are pulp plates. The construction method of the dissoluble concrete reserved-hole mold comprises the steps of mold manufacture, mold erection, concrete casting and mold dismounting. The concrete reserved-hole mold is convenient ...

Polyethylene/polyester heat shrink tube and preparation method thereof

The invention provides a polyethylene/polyester heat shrink tube and a preparation method thereof. The tube comprises the components of, by weight, 65-90% of polyethylene, 6-30% of polyester, 0.01-20% of a toughening agent, and 0.01-5% of a nucleating agent. The method provided by the invention is environment-friendly and reliable, and has the advantages of recyclability, simple processing process, and low cost. The tube has the advantages of good weather resistance, good heat resistance, good electrical insulation property, and good mechanical performance. The tube can be applied in various fields such as circuit joint protection and sealing.

Full-heat-exchange center air environment purification device

The invention provides a full-heat-exchange center air environment purification device which comprises an air full-heat-exchange device. An indoor air outlet, an outdoor exhaust port, an indoor air return port and a fresh air inlet are formed in the air full-heat-exchange device. The outer side of an air inlet of the air full-heat-exchange device is connected with an air filtration medium box. An outdoor air inlet is formed in the air filtration medium box. The full-heat-exchange center air environment purification device has the advantages that peculiar smells generated by various emission pollution sources in the outdoor environment can be effectively removed, so that introduced air is clean and free of pollution and peculiar smells, and the purpose of energy conservation is achieved by the full-heat-exchange center air environment purification device combined with the air full-heat-exchange device.

Liquid CO2 pours into ground conveying system of oil gas well into

The utility model relates to a pour into cryogenic liquids into on the ground of oil gas well and carry process systems, especially relate to one kind and pour into liquid carbon dioxide into ground conveying system that the oil gas well realizes that enhanced oil recovery or geology seals up up for safekeeping. A liquid CO2 pours into ground conveying system of oil gas well into which characterized in that: include through connecting CO2 tank wagon, CO2 storage tank, hello liquid pump and the plunger pump that the pipeline connected gradually, wherein, the CO2 storage tank is connected that the pipeline is external to have a vaporizer between the liquid pump with feeding, and the CO2 storage tank is connected to the vaporizer, and the plunger pump links to each other through connecting pipeline and oil gas well head. The utility model discloses connection structure is simple, is applicable to to use down at the complicated orographic condition in north of shanxi province gully, preferably ...

Fireproof and explosion-proof device for production, storage and use processes of new energy lithium battery

The invention discloses a fireproof explosion-proof device for new energy lithium battery production, storage and use processes, and the fireproof explosion-proof device comprises a cabinet body, an early fire extinguishing device, a smoke fire extinguishing device, a fire fighting water system device and a plurality of leakage-proof trays for placing new energy lithium batteries, the fireproof door is rotationally connected with the cabinet body and can overturn front and back relative to the cabinet body, so that the cabinet body is opened or closed, a plurality of layers of goods shelves which are arranged in the height direction of the cabinet body at intervals and used for placing anti-leakage trays are arranged in the cabinet body, and the anti-leakage trays are placed on the tops of all the layers of goods shelves of the cabinet body respectively. The lithium battery thermal runaway control cabinet is simple and novel in structure and reasonable in design, the early-stage fire extinguishing ...

Infectious disease ward disinfectant spraying equipment

The invention relates to the technical field of disinfection equipment, in particular to infection department ward disinfectant spraying equipment which comprises a base, universal wheels, a mounting table, a disinfection structure, a storage assembly, a lifting assembly and a uniform mixing assembly, the storage assembly is arranged in the base, and the storage assembly comprises a storage motor, a storage structure, a storage plate and a storage sliding block; according to the device, medical staff can push the device to conduct disinfection work, the device does not need to be carried on the back, the working cost is reduced, a storage motor drives a storage threaded rod to rotate, the storage threaded rod drives a storage threaded ring to move, the storage threaded ring drives a storage threaded block to move, and the storage threaded block drives a storage plate to move; the storage plate drives the storage sliding blocks to slide in the storage sliding grooves, the storage plate drives ...

Distribution network safety monitoring method

Rapid and uniform air filtration device and filter material used by air filtration device

The invention relates to a rapid and uniform air filtration device which comprises a housing, a gas inlet, a gas outlet, a fan, a rotation tray and filter materials, wherein the filter materials are uniformly placed in the tray and rotate along with the tray at uniform velocity; the filter material contains 10-15 weight percent of filtering media, and the filtering media are respectively acid filtering media for filtering and removing alkaline gas and alkaline filtering media for filtering and removing acid gas; the acid filtering media or the alkaline filtering media are uniformly filled in respective basis materials in the form of liquid. The filtration device can filter various gases, thereby changing the condition that the traditional filtration device only filters single harmful gas. Meanwhile, the invention also provides a uniformly-mixed air filter material, the inner part of the air filter material is uniformly mixed, and the effect of filtering the harmful gas is greatly improved ...

Tangent tower wire clamp replacing tool for extra-high voltage direct-current transmission lines

The invention discloses a tangent tower wire clamp replacing tool for extra-high voltage direct-current transmission line. The tangent tower wire clamp replacing tool comprises a cross-arm side connecting fitting, an insulated pull rod, a mechanical lead screw and a dual-purpose wire clamp, the cross-arm side connecting fitting is connected with one end of the insulated pull rod through an adapter, the mechanical lead screw comprises a screw shaft, an inner sleeve and an outer sleeve which are sleeved from inside to outside in sequence or connected through a wire in pairs, the outer end of the screw shaft is connected to the other end of the insulated pull rod through an end connector, the outer end of the outer sleeve is connected with the dual-purpose wire clamp through the end connector, a ratchet wheel is arranged at the outer end of the inner sleeve, a rotating sleeve and ratchets sleeve the ratchet wheel, and the rotating sleeve is connected with one end of a handle. By the arrangement ...

Shooting control method and unmanned aerial vehicle

A shooting control method includes obtaining a distance between an unmanned aerial vehicle and a target point of a current shooting interval, determining whether the unmanned aerial vehicle satisfies a shooting time prediction condition according to the distance, predicting a time point at which the unmanned aerial vehicle arrives at the target point according to the distance if the unmanned aerial vehicle satisfies the shooting time prediction condition, and controlling an image device carried by the unmanned aerial vehicle to shoot at the time point.

一种声乐气息练习装置

本实用新型提供一种声乐气息练习装置，包括音箱、音频放大器、调节杆、滑座、麦克风杆、分贝仪、防喷罩、麦克风、球形卡头、弹簧以及活动臂，练习台主体上端面左侧装盘有音箱，音箱上端面安装有音频放大器，练习台主体上端面安装有调节杆，调节杆环形侧面安装有球形卡头，球形卡头内部装配有弹簧，调节杆环形侧面上侧安装有滑座，滑座右侧连接有麦克风杆，麦克风杆右侧安装有麦克风，麦克风上侧安装有分贝仪，麦克风右侧安装有活动臂，活动臂右侧安装有防喷罩，该设计解决了原有缺乏有效的声乐练习装置的问题，本实用新型结构合理，便于有效练习声乐气息。

一种具有混合加热源的平板硫化机

本实用新型提供了一种具有混合加热源的平板硫化机，包括机座和顶台，机座上端左侧安装有油缸，且油缸上端贯穿设置有底台，并且油缸左端相连通有输油管，底台上端四角固定有四根立柱，且立柱末端贯穿过顶台，油缸上端通过活塞杆活动连接有活动台，且活动台与立柱滑动连接。适应于平板硫化机技术领域的生产与应用，该具有混合加热源的平板硫化机，在将材料放在加热台上硫化的时候，由于加热台由隔热层、绝缘层、电加热层和电热管层组成，且隔热层由玻璃纤维组成，并且隔热层的厚度为1cm，且绝缘层由陶瓷纤维组成，并且绝缘层的厚度为五毫米，且电加热层由型号为XBL69型的镍铬电热丝组成，而且电加热层的厚度为两厘米。