Calibration and detection method of thermometer

The invention provides a calibration and detection method of a thermometer. The method comprises the following steps: 1, recording the measured values of the calibrated thermometer and a standard thermometer at the same time under constant temperature, recording data respectively, and drawing the diagrams of the measured data of the calibrated thermometer and the standard thermometer according to the recorded data respectively; 2, selecting a valid data area; 3, calculating the average value by selecting characteristic points in the valid data area; and 4, calculating the temperature coefficient of the calibrated thermometer according to the average value. The calibration and detection method of the thermometer eliminates the measurement error due to the fact that the standard thermometer and the calibrated thermometer have different responses to the fluctuation of the temperature field and the thermal equilibrium state, and improves the calibration accuracy.

Glyphosate-containing water solution treatment method

A glyphosate-containing water solution treatment method comprises the following steps: adding manganese salt containing bivalent manganese in the water solution, adjusting the pH value of the solution to 2.5-7.0 to perform a reaction to generate a precipitate containing manganese and glyphosate, and then performing solid-liquid separation to reach the two aims of recycling glyphosate and treating wastewater; wherein, the optimum pH of the precipitation reaction is 4.2-6.5, the optimum molar ratio of manganese salt to glyphosate is 1.0-1.3 and the precipitate recovery rate of glyphosate can reach more than 96%. By adding acid solution in the precipitate containing manganese and glyphosate, the precipitate can dissolve again to form supersaturated glyphosate solution and high purity glyphosate solid can be generated through recrystallization. Glyphosate technical with a purity more than 95% can be obtained by conventionally separating, washing and drying the obtained glyphosate solid which ...

Method for preparing magnetic carbon nanotube absorbing agent through Fenton reagent method

Method, device and equipment for detecting network port of remote electric energy data terminal

The invention discloses a network port detection method, device and equipment for a remote electric energy data terminal, relates to the technical field of computers, and can solve the problems that faults cannot be detected without tools on site and network ports cannot be detected due to internal transmission of data when a plurality of network ports are in the same equipment. The method comprises the following steps: setting a first actual IP address of a network port to be tested and second actual IP addresses of other network ports; adding a first virtual IP address, binding an MAC address of the network port to be tested for the first virtual IP address, adding a second virtual IP address, and binding MAC addresses of other network ports for the second virtual IP address; setting data conversion of the firewall, replacing the first actual IP address with the first virtual IP address, and replacing the second actual IP address with the second virtual IP address; and in response to ...

Monitoring system and method of 1000 kV high-voltage paralleling reactor

The invention relates to a monitoring system and method of a 1000 kV high-voltage paralleling reactor. The system comprises an acceleration sensor, a noise sensor, a current sensor, an IEPE A/D sampling module, an isolating type A/D sampling module, an industrial personal computer, a Mesh wireless communication module and an upper computer server. The acceleration sensor and the noise sensor are arranged on the surface of the high-voltage paralleling reactor respectively and connected with the IEPE A/D sampling module. The current sensor is arranged between a three-phase neutral point of the high-voltage paralleling reactor and the ground and connected with the isolating type A/D sampling module. The IEPE A/D sampling module and the isolating type A/D sampling module are connected with the industrial personal computer respectively, and the industrial personal computer is connected with the upper computer server through the Mesh wireless communication module. Compared with the prior art, ...

Equipment detection device for substation

The utility model discloses an equipment detection device used for a transformer substation. The device comprises a detection box, symmetrical shock absorbers are fixedly connected to the inner bottomwall of the detection box. The top ends of the two shock absorbers are jointly connected with a buffer plate; symmetrical sliding grooves are formed in the inner side wall of the detection box, a sliding block matched with the corresponding sliding groove is clamped in each sliding groove, the left side face and the right side face of the buffer plate are fixedly connected with the side faces, close to each other, of the two sliding blocks correspondingly, and a spring is fixedly connected to the upper surface of each sliding block. The utility model discloses an equipment detection device for a transformer substation. The resistance sensor, the voltage sensor, the current sensor and the temperature sensor cooperate with the acquisition module to transmit data to the central processor ofthe ...

Multicavity injection mold

The utility model provides a multicavity injection mold, wherein multicavity injection mold includes front mould and back mould, front mould and back mould surface are provided with the injecting glue mouth, including sprue and subchannel, sprue and subchannel be arbitrary to be set up in front mould or back mould and distributes on the mould in the difference, and the chamber of moulding plastics distributes on the mould at subchannel place, and sprue and subchannel feed through behind the multicavity injection mold compound die, and the sprue feeds through rather than the injecting glue mouth intercommunication of place mould, a plurality of chambeies of moulding plastics of subchannel and multicavity injection mold. The utility model discloses in, behind the membrane compound die of multicavity injection mold front and back, mould plastics and glue from injecting glue mouth inflow sprue, to follow the sprue again and enter into the subchannel, the subchannel arrives multicavity injection ...

Pichia pastoris hydrolysate and preparation method thereof

The invention provides a preparation method of a pichia pastoris hydrolysate, which comprises the following steps: (1) fermentation culture: carrying out fermentation culture on pichia pastoris to obtain a yeast stock solution; (2) autolysis: washing and centrifuging the yeast stock solution obtained in the step (1), then carrying out repeated freeze-dissolving treatment, and adding an alkaline solution to promote dissolution; and (3) performing enzymolysis: performing enzymolysis by using a compound enzyme to obtain yeast hydrolysate. According to the method disclosed by the invention, yeast wall breaking is carried out by using a salt wall breaking method, a compound enzyme method and a stirring mode after pretreatment is carried out by adopting a freeze-dissolving method, so that the content of nutrient substances is ensured, the experimental operation is simple, and large-scale production can be realized; the raw material of the yeast hydrolysate is the pichia pastoris strain KM71, ...

SDS (Sodium Dodecyl Sulfate) dry desulfurization system

The invention belongs to the technical field of flue gas treatment, and relates to an SDS (sodium dodecyl sulfate) dry desulfurization system which comprises a raw material bin, a star-shaped feeder, a quantitative screw feeder, a grinder, a conveying fan, a spraying pipeline, a spraying gun and a flue which are sequentially connected in series along the spraying direction of a desulfurizing agent, the raw material bin adopts a combined type material bin, and is provided with a steam tracing pipe and a fluidization air plate, so that the storage amount of a desulfurizing agent is increased, and the desulfurizing agent is effectively prevented from being affected with damp and hardened; the electric heater is arranged on the injection pipeline, so that the desulfurizer powder is heated to expand and burst in advance, and the desulfurizer powder can quickly react with SO2 in the flue gas; and the spray gun with rapping and purging functions is adopted, so that the desulfurizing agent powder ...

Data processing and storing method for transformer direct current magnetic bias monitoring system

The invention relates to a data processing and storing method for a transformer direct current magnetic bias monitoring system. The method comprises the following steps: S1, reading current signals and accelerated speed signals of the transformer direct current magnetic bias monitoring system; S2, separating direct current component and alternating component from the current signals adopting the low-pass filtering algorithm to obtain the constant value and time-domain signals of the current; S3, performing frequency domain processing on the accelerated speed signals to obtain the constant value, time-domain signals and frequency signals of the accelerated speed; S4, adopting three sheets namely master data sheet, time-domain data sheet and frequency data sheet to store the constant value and the time-domain signals of the current signals, the constant values, the time-domain signals and the frequency signals of the accelerated speed signals. Compared with the prior art, the method has the ...

Method for minimally modulating on-off times of cascaded h-bridge multilevel inverter

The invention discloses a method for minimally modulating the on-off times of a cascaded H-bridge multilevel inverter, and belongs to the field of modulation of cascaded multilevel inverters. A conventional unipolar SPWM causes unnecessary on-off times, and along with the increase of the number of cascaded units, the unnecessary on-off times are overlaid. Aiming at solving the problem, a strategy for minimally modulating the on-off times of a cascaded multilevel inverter is provided, and comprises the following steps: an integrated cascaded structure adopts a carrier phase-shifting modulating way; each single cascaded unit adopts an improved unipolar modulating way, and the on-off state of a switching tube on the chopping arm of each H-bridge unit of the cascaded multilevel inverter; the percent, for occupying the time, of the on-off state of the chipping arm in the modulating period is calculated. Compared with the conventional unipolar SPWM, The strategy has the advantages that the on-off ...

Method for processing N-phosphonomethyliminadiacetic acid wastewater by using manganese catalytic oxidation

The invention discloses a method for processing N-phosphonomethyliminadiacetic acid wastewater by using manganese catalytic oxidation. Proper manganese salts with proper amount are added into the N-phosphonomethyliminadiacetic acid wastewater to serve as a catalyst; under conditions of heating and offering oxygen (or a mixed gas of oxygen and an inert gas), a catalytic reaction cuts off a C-P bond in an N-phosphonomethyliminadiacetic acid molecule; and organic phosphate groups in the N-phosphonomethyliminadiacetic acid molecule are caused to be released and change into inorganic phosphates, thereby remarkably improving the biodegradability of the N-phosphonomethyliminadiacetic acid wastewater, and establishing a good foundation for following biological treatments and phosphorus resource recovery. Under suitable technological conditions, the conversion rate of N-phosphonomethyliminadiacetic acid to phosphates can reach more than 98 percent; meanwhile, the method can oxidize a majority of ...

Method for processing N-phosphonomethyliminadiacetic acid wastewater by using manganese catalytic oxidation

The invention discloses a method for processing N-phosphonomethyliminadiacetic acid wastewater by using manganese catalytic oxidation. Proper manganese salts with proper amount are added into the N-phosphonomethyliminadiacetic acid wastewater to serve as a catalyst; under conditions of heating and offering oxygen (or a mixed gas of oxygen and an inert gas), a catalytic reaction cuts off a C-P bond in an N-phosphonomethyliminadiacetic acid molecule; and organic phosphate groups in the N-phosphonomethyliminadiacetic acid molecule are caused to be released and change into inorganic phosphates, thereby remarkably improving the biodegradability of the N-phosphonomethyliminadiacetic acid wastewater, and establishing a good foundation for following biological treatments and phosphorus resource recovery. Under suitable technological conditions, the conversion rate of N-phosphonomethyliminadiacetic acid to phosphates can reach more than 98 percent; meanwhile, the method can oxidize a majority of ...

A rotary type automatic degating device

The invention relates to the technical field of automatic mold production and particularly relates to a rotary type automatic degating device. The degating device comprises a mold shell and an oil cylinder. The mold shell is provided with a sliding block driven by the oil cylinder and a rack connected to the sliding block. The degating device also comprises a rotary gate knife used for cutting a gate material. Wheel gears are fixed to the rotary gate knife. The rack is meshed with the wheel gears for transmission. The degating device is capable of automatic degating, avoiding manual operation, reducing the labor intensity, increasing the production efficiency, reducing energy consumption and saving the labor cost. The degating device is provided with antifriction bearings, thus guaranteeing rotation and transmission effects of the rotary gate knife. In addition, a copper bush cooperated with the rotary gate knife plays a wear resistant role, protects a mold well and improves durability ...

Method for quickly measuring transformer thermometer environment temperature influence quantity

The invention relates to a method for quickly measuring the transformer thermometer environment temperature influence quantity. A test is conducted when the oil tank temperature of a transformer is stable, the environment temperature is T3, the length of a capillary tube is L1, and one end of the capillary is connected with a thermometer; a heating region with the length being L2 is taken from the capillary tube, a temperature control device is bound to the heating region, and the current temperature value T1 indicated by the thermometer pointer is read and the borne moment of force is M1; the temperature of a temperature control device is set and slowly raised to the target temperature T4; after the temperature is stable, the current temperature value T2 indicated by the thermometer pointer is read and the borne moment of force is M2; the temperature value difference of the thermometer before and after the temperature rises and the difference of the moment of force are calculated, the ...

Method for recovering and purifying glyphosate from glyphosate-containing aqueous solution

The invention relates to a method for recovering and purifying glyphosate from a glyphosate-containing aqueous solution. The method comprises the following steps: adding calcium ions to the glyphosate-containing aqueous solution; adjusting the glyphosate-containing aqueous solution to have a pH value of 4.0-10.0; reacting to generate precipitate containing calcium and glyphosate; separating the solid and the liquid of the precipitate, recovering the glyphosate, wherein a precipitation reaction has an optimal pH value of 6.0-7.5, an optimal mol ratio of the calcium salt to the glyphosate is 1.5-3.0, and the precipitate recovery rate can reach higher than 95 percent; adding an acid solution to dissolve glyphosate calcium salt precipitate again so as to form a supersaturated glyphosate solution which can be crystallized again to generate high-purity glyphosate solid; generally separating, washing and drying the glyphosate solid obtained by recrystallization to obtain an original glyphosate ...

A look for round ware for stove outer covering is assembled

The utility model relates to a blast furnace construction field specifically is a look for round ware for stove outer covering is assembled, characterized by: including steel sheet, split pin, pin, turn buckle, pressure -resistant rod, bolt, steel sheet center trompil is welded on the stove outer covering, the split pin is passed through the pin and is connected with the steel sheet, and the one end and the turnbuckle of this split pin are connected, turnbuckle's one end connection openings round pin, pressure -resistant rod is connected to the other end, through bolted connection for the flange between the pressure -resistant rod. When the stove outer covering was assembled, turnbuckle was adjusted to the steel sheet welding that will look for round ware on the stove outer covering, applyed pulling force or pressure for pressure -resistant rod, came to look for the circle with the stove outer covering. So, can look for round operation and improve construction speed the stove outer covering ...

Cross-platform operation and maintenance method, system, device and equipment for electric energy collection

The invention discloses a cross-platform operation and maintenance method, system, device and equipment for electric energy collection, relates to the technical field of computers, and can solve the technical problem that an operation and maintenance tool developed based on Windows cannot work in a Linux operating system in a cross-platform manner. The method comprises the following steps: firstly, creating a named pipeline; then a netcat command is constructed according to the named pipeline, a target workstation and a target substation, the target workstation uses a Windows system, and the target substation uses a Linux system; and finally, when the netcat command is utilized to monitor operation and maintenance data sent by the target workstation, transmitting the operation and maintenance data to the target substation through a default pipeline, and when the netcat command is utilized to monitor reply data sent by the target substation, transmitting the reply data to the target workstation ...

Method for non-invasive efficient purification of single-wall carbon nano tube

The invention belongs to the field of material synthesis, in particular relates to a method for non-invasive efficient purification of a single-wall carbon nano tube. The method comprises the following steps: laying original single-wall carbon nano tube samples in a quartz boat, and placing the quartz boat in a quartz tube; raising the temperature of a furnace to 400-500 DEG C at the speed rate of 10 DEG C. min<-1> and insulating for 1-3 hours; after an air oxidation reaction is finished, closing two ends of the quartz tube and introducing protective gas argon so as to exhaust the air in the quartz tube; then raising the temperature of the furnace to 750-1000 DEG C at the speed rate of 10 DEG C. min<-1> and insulating for 1-3 hours; after a high-temperature reduction reaction thermal treatment process is finished, introducing the protective gas, taking out the samples after the temperature of the furnace is reduced to room temperature, and removing catalyst particles and unreacted metal ...

Method for preparing magnetic carbon nanotube absorbing agent through Fenton reagent method

The invention belongs to the technical field of environmental nano new-functional material, and in particular relates to a method for preparing magnetic carbon nanotube absorbing agent through Fenton reagent method. The preparation method comprises the following steps: after purifying a carbon nanotube primary sample obtained by using chemical gas phase depositing method, ultrasonically dispersing in distilled water; adding ferrous salt to carbon nanotube dispersed solution, and magnetically mixing for a few hours so that the surface of the carbon nanotube absorbs ferrous ions to reach the maximum absorbing balance; under the magnetic mixing, adding hydrogen peroxide having a concentration of 30% to the carbon nanotube dispersed solution at a certain speed, reflowing and reacting at a certain temperature for a few hours, and then filtering, washing and drying in vacuum so as to obtain a precursor of magnetic ferric oxide uniformly loaded by the carbon nanotube; thermally processing the ...

Waterlogging draining method between floors

The invention relates to the field of waterlogging drainage and provides a waterlogging draining method between floors, which ensures to rapidly drain waterlogging and effectively prevent return overflow of sewage and ensures convenience of maintenance to solve the technical problem. A drainage header pipe is arranged between floors, and an installation part between the drainage header pipe and the floors prevents waterlogging infiltration through seal treatment; and a water outlet is formed on the drainage header pipe, the waterlogging on the floor is introduced into the drainage header pipe for discharge through the water outlet, and the waterlogging infiltration between floors is prevented; moreover, a branch drainage pipe which is communicated with the drainage header pipe is arranged, and a water outlet is formed on the branch drainage pipe, so that a certain distance is formed between the water outlet and the drainage header pipe. Due to the independently arranged branch drainage ...

A vaulting pole formula fixer for blast furnace stove outer covering is assembled

The utility model relates to a blast furnace construction field specifically is a vaulting pole formula fixer for blast furnace stove outer covering is assembled, characterized by: including steel sheet, round steel pin, split pin, major diameter seamless steel pipe, forged steel bolt and minor diameter seamless steel pipe, steel sheet center trompil and welding are on the stove outer covering, and major diameter seamless steel pipe passes through the round steel pin and the split pin is connected with the steel sheet, and the forged steel bolt is connected with minor diameter seamless steel pipe, and the processing of minor diameter seamless steel pipe has rectangular thread and cover in major diameter seamless steel pipe, through the pitch of adjusting minor diameter seamless steel pipe,adjust the gradient of stove outer covering to prevent that the monolithic stove outer covering of assembling from empting, play the fixed action to the stove outer covering. This fixer adopts above-mentioned ...

Process for preparing disodium hydrogen phosphate from glyphosate mother liquor

The invention relates to a process for preparing disodium hydrogen phosphate from a glyphosate mother liquor. The process comprises an oxidization step, a crystallization step and a separation step, wherein the oxidization step comprises oxidizing organic phosphorus compounds and phosphorous acid in the glyphosate mother liquor wastewater into positive phosphate ions under the reaction conditions of a temperature ranging from 240 to 320 DEG C and pressure ranging from 6.0 to 15.0 Mpa by taking the oxygen in the air as an oxidizing agent, wherein the oxygen supply amount is 0.7 to 1.3 times of the total amount of COD (Chemical Oxygen Demand) of the glyphosate mother liquor; the crystallization step comprises cooling the oxidized liquid obtained in the oxidization step to the range from minus 5 to 12 DEG C and generating solid-state disodium hydrogen phosphate dodecahydrate crystals under the condition that pH ranges from 7.0 to 10.5; the separation step comprises performing solid-liquid ...

Rapid nondestructive testing method for degradation state of ballast bed

The invention discloses a rapid nondestructive detection method for a degradation state of a ballast bed. The rapid nondestructive detection method comprises the following steps: selecting ballast particles at each detection point for scanning; calculating the volume and true ellipsoid degree of an inscribed ellipsoid with the maximum volume in an area enclosed by the ballast particle point cloud according to the ballast particle point cloud data; and calculating the degradation index of the ballast bed at each detection point by using the true ellipsoid, and evaluating the degradation state of the ballast bed. According to the method, nondestructive testing is carried out on the degradation state of a limited number of ballast particles, it is ensured that interference of equipment quality and environmental factors is avoided in the detection process, the ballast bed degradation index highly related to the ballast bed degradation state is calculated, the ballast bed degradation state is ...

Method for treating PMIDA mother liquor wastewater and reclaiming nitrogen and phosphorus in PMIDA mother liquor wastewater

The invention relates to a method for treating PMIDA mother liquor wastewater and reclaiming nitrogen and phosphorus in the PMIDA mother liquor wastewater. The temperature of the PMIDA mother liquor wastewater containing PMIDA and/or phosphite radicals is raised to certain temperature through heating under the condition of sufficient oxygen and proper oxygen pressure, so that the oxidization process of the PMIDA mother liquor wastewater is performed and the aims of removal of COD, conversion of organic phosphorus and the phosphite radicals into phosphate radicals and conversion of organic nitrogen into ammonia nitrogen are achieved. The PMIDA mother liquor wastewater after oxidization treatment is subjected to filtration or centrifugation for deposit removal, an alkaline substance is added into the PMIDA mother liquor wastewater to adjust the pH value of the PMIDA mother liquor wastewater to be between 7 and 10, and proper magnesium salts are added into the PMIDA mother liquor wastewater ...

Hydrogen chloride autogenous pressure carries and drying device

The utility model discloses a hydrogen chloride autogenous pressure carries and drying device relates to and carrying and drying device technical field. Produce jar, desicator including sulphuric acid jar, hydrochloric acid jar, hydrogen chloride gas, the desicator is the graphite condenser, the bottom of sulphuric acid jar and hydrochloric acid jar is linked together with the top that hydrogen chloride gas produced the jar through sulphuric acid pipeline and hydrochloric acid pipeline respectively, hydrogen chloride gas produces tank deck portion and is linked together through moist hydrogen chloride gas pipeline and desicator import, and the desicator export is received a jar import through dry hydrogen chloride gas pipeline with dry hydrogen chloride gas and is linked together, desicator bottom is equipped with condensate return pipe among the hydrogen chloride gas, and the other end and the hydrogen chloride gas of condensate return pipe produces and jar be linked together among the ...

Flue gas pipeline monitoring device with interception mechanism

The utility model discloses a flue gas pipeline monitoring device with an interception mechanism. Main gas conveying pipe, the main gas conveying pipe is connected with an auxiliary gas conveying pipethrough a three-way joint; two round holes are formed in the main gas conveying pipe, temperature and pressure flow sensors and dust sensors are inserted into the round holes, a second valve is arranged on the main gas conveying pipe and located above the temperature and pressure flow sensors, a first valve is arranged on the auxiliary gas conveying pipe, and the end of the auxiliary gas conveying pipe is connected with a smoke purifier. The utility model aims to provide a flue gas pipeline monitoring device with an interception mechanism, which can detect flue gas in real time before the flue gas is exhausted so as to prevent high-temperature and high-dust polluted flue gas from being directly exhausted into air or other equipment.

Oil-immersed power transformation equipment temperature measuring device, self-diagnosis method, equipment and storage medium

The invention relates to an oil-immersed power transformation equipment temperature measuring device, a self-diagnosis method, equipment and a storage medium, and the system comprises a composite temperature sensor unit which comprises a temperature bulb and two groups of independent temperature measuring elements and is used for measuring the working temperature of oil-immersed power transformation equipment; the pointer display and control unit is used for directly associating the working temperature, measured by the temperature bulb, of the oil-immersed power transformation equipment with a pointer display value through a pointer indicating value transmitting module and outputting digital data of an equivalent pointer display temperature value; and the on-line self-diagnosis unit is used for reading the third temperature value and the fourth temperature value measured by the two groups of temperature measuring elements, and the second temperature value and the environment temperature ...

Preparation method of novel magnetically separable absorbent for removing dye

The invention belongs to the technical field of environmental new functional nano materials, in particular relates to a preparation method of a novel magnetically separable absorbent for removing dye, comprising the following concrete steps of: ultrasonically dispersing a primary carbon nano tube sample in distilled water by adopting a chemical vapor deposition method; adding a certain quantity of oxidizing solution, and placing the solution in a magnetic stirrer for refluxing at a certain temperature for several hours; and filtering the modified magnetic carbon nano tube sample, washing with water, and vacuum drying to obtain a magnetic carbon nano tube composite absorbent. In the magnetic carbon nano tube composite absorbent obtained in the invention, the outer layer of a metal catalyst particle used for magnetically separating is coated with a carbon layer with better graphitization, which is used for effectively protecting the metal catalyst particle so that the service life of a catalyst ...