Gravity sensor evacuation safety gate

The invention relates to a gravity sensor evacuation safety gate. The gravity sensor evacuation safety gate can be automatically unlocked and locked by virtue of a gravity sensor, so that the opening time can be effectively saved, the escape probability can be increased, and the gravity sensor evacuation safety gate can be applied to the special firefighting field such as a long large tunnel and the like. The gravity sensor evacuation safety gate comprises a door frame and a door body, wherein one side of the door body is hinged to the door frame through a hinge, and the gravity sensor evacuation safety gate is characterized in that the hinge adopts a self-return elastic hinge, the front side and the rear side of the door body are respectively provided with a front side gravity sensor area and a rear side gravity sensor area, and gravity sensor opening and closing devices acting on the door body are arranged in the front side gravity sensor area and the rear side gravity sensor area.

Flow-equalizing ventilation device

The invention discloses a flow-equalizing ventilation device, which is characterized by simple and convenient operation. The flow-equalizing ventilation device comprises a plurality of air openings arranged on a ventilation pipeline, wherein the ventilation pipeline comprises an opened end and a closed end, one air opening closest to the closed end of the ventilation pipeline belongs to the first group, other air gaps belong to the second group, windward sections of all the air openings are parallel to the section of the ventilation pipeline, a flow limiting device is arranged at least on each air opening in the second group and is specifically arranged on the other end corresponding to the end of the windward section; and the number of the opened flow limiting devices of the air openings arranged on the ventilation pipeline sequentially increases or decreases as the distance from the flow limiting devices to the farthest position of the closed end of the ventilation pipeline decreases ...

Passage type vaporization cooling apparatus

The invention discloses a channel type evaporative cooling device which is suitable for being arranged in an air exhausting duct through which air flows constantly pass in an architecture, which is not needed to be arranged in an atmospheric environment. The device comprises a cooling unit composed of a plate-shaped evaporative heat exchanger and an evaporative water replenisher, wherein, the evaporative water replenisher supplies makeup water to a plate surface of the evaporative heat exchanger by means of periodical water makeup at interval. The device features high heat exchange efficiency and can be installed in an air exhausting duct in underground architectures to replace a cooling tower arranged outdoors. As far as the military significance of the device is concerned, a refrigeration system arranged for transferring heat surely exists in a military facility which has requirements on temperature control for the internal environment, when the military facility is needed to be completely ...

Painting type evaporation water supply device

The invention discloses a smearing type evaporation water compensator capable of improving evaporation efficiency of evaporative heat exchanger. The water compensator comprises at least one smearing device that is connected with an access tube of compensated water. The smearing device includes a rotating body and at least one smearing rod (5) radially arranged on the rotating body, the said rotating body comprises an inflow passage communicated with the smearing rod (5), the said inflow passage is connected with the water supply connecting pipe (1). The smearing type evaporation water compensator in the invention continuously or discontinuously supply compensated water for smearing for the smearing device through the access tube of compensated water, and the compensated water is then smeared on the metal surface of the evaporative heat exchanger through the smearing device; the surface water film formed on the metal surface is thinner than other water compensation manner; therefore, latent ...

Painting type evaporation water supply device

The invention discloses a smearing type evaporation water compensator capable of improving evaporation efficiency of evaporative heat exchanger. The water compensator comprises at least one smearing device that is connected with an access tube of compensated water. The smearing type evaporation water compensator in the invention continuously or discontinuously supply compensated water for smearing for the smearing device through the access tube of compensated water, and the compensated water is then smeared on the metal surface of the evaporative heat exchanger through the smearing device; the surface water film formed on the metal surface is thinner than other water compensation manner; therefore, latent heat of vaporization is easier to be evaporated and absorbed so that the efficiency of evaporation heat exchange is obviously improved.

City tunnel shaft type natural ventilation and smoke-discharging proof method

The invention discloses a city tunnel structure system, a city tunnel is equipped with a plurality of naturally ventilating vertical wells, the top end of the vertical well is communicated with the ground, the lower end of the vertical well is communicated with the inside of the tunnel. The vertical well is arranged on the top or side upper part of the tunnel along the length direction. The naturally ventilating vertical wells can be arranged continuously along the whole length of the tunnel, or discontinuously along the whole length of the tunnel, the largest distance between the vertical wells is preferably larger than 240 meters. The top end of the vertical well can be added with a wind cap, and an auxiliary ventilator is added when natural ventilation amount is adequate. The invention also discloses a city tunnel vertical well type natural ventilation and smoke control technology using the structure system, which is suitable for single cavity two-direction traffic tunnels, as well as ...

Evaporation and heat-exchange periodic water replenishment device

The invention discloses an evaporation and heat-exchange periodic water replenishment device which can obtain higher evaporation and heat-exchange efficiency compared with the current continuous water replenishment manner. The water replenishment device comprises a shunting main body and a rotary water replenishment pipe arranged in the shunting main body, wherein a plurality of shunting ports are arranged on the shunting main body at intervals, and a nozzle is arranged on each shunting port; a plurality of water replenishment ports are arranged on the pipe wall of the rotating water replenishment pipe; and when the rotary replenishment pipe rotates opposite to the shunting main body, each water replenishment port is respectively and periodically communicated with the shunting port correspondingly arranged on the shunting main body. The invention designs the evaporation and heat-exchange periodic water replenishment device which realizes periodic water replenishment according to necessary ...

Air valve of curtain

The invention relates to an air valve of a curtain, which has the advantages of good seal performance, simple structure as well as simpleness and convenience in control operation and can greatly reduce the production cost of the air valve. The air valve provided by the invention comprises a flexible curtain (30), a driving device, a front side grid (21) and a rear side grid (22), wherein the driving device drives the retraction motion of the flexible curtain (30); and the front side grid (21) and the rear side grid (22) are fixedly arranged at the two sides of the retraction motion plane of the flexible curtain (30).

Evaporation water compensating device

The invention discloses an evaporation water supplementing device capable of increasing the evaporation efficiency of evaporation heat exchanger. The evaporation water supplementing device comprises a rotating body and at least one vertical water storing and conducting pipe with a nozzle is disposed on the rotating body; the rotating body is connected with a water inlet channel which communicates with the water storing and conducting pipe; the water storing and conducting pipe forms a rotating surface while rotates with the rotating body; and the jetting mouth of the nozzle faces the lateral area of the rotating surface. The water storing and conducting pipe rotates around the rotating body to realize the periodical water supplement to the metal surface of the evaporation heat exchanger, therefore leaves necessary time and space for the evaporation process, effectively improves the moisture evaporation environment of the metal surface, and increases the evaporation thermal exchanging efficiency ...

Rotational flow evaporating heat exchanger

The invention discloses a coil type swirling evaporation heat exchanger which can cool liquid in a pipe by the evaporation process of water on the surface of metal and has the characteristic of favorable heat exchanging effect. The heat exchanger is made of metal pipes with high heat conductivity, and the metal pipes are coiled in a progressive mode of a spiral line to form a disk-shaped body which is approximate to a disk. The structure improves the flowing characteristic of liquid in a pipe, can weaken the wall attaching effect of the liquid so as to improve the heat exchanging effect. Meanwhile, the heat exchanger is matched with an evaporation water replenishing device periodically replenishing water so that a water replenishment process of a water film in any position of the surface of metal can be instantly carried out, thus the evaporation efficiency of the heat exchanger is effectively improved. The heat exchanger can be widely used for various occasions that liquid in a pipe is ...

Jet-type station air conditioning device

The invention discloses a jet-type station air conditioning device which realizes cooling and heating by a single mode and can conveniently control the ambient temperatures of partial stations under a large-space environment. The jet-type station air conditioning device comprises an air inlet cavity and a rotational flow cavity, wherein a centrifugal type fan communicated with the rotational flow cavity is arranged in front of the air inlet cavity; the rotational flow cavity is communicated with an axial jet nozzle through a jet channel; the jet-type station air conditioning device is characterized in that an annular cavity is formed in the rear end of the rotational flow cavity; semiconductor refrigeration devices are arranged on an inner ring of the annular cavity in the ring direction and the axial direction at intervals; external heat conduction components are fixedly arranged on the lower surfaces, which are positioned outside the annular cavity, of all the semiconductor refrigeration ...

Ventilating current equalizer

This invention discloses a air supplying and discharging pipeline, especially an evenly absorbing and discharging pipeline that is adequate for long distance air supplying and discharging pipeline. It includes a simple and convenient ventilation flow equalizer, which is composed of several air ports arranged on the ventilation pipeline. The projecting area of the air port windward sections on air supplying pipeline section are increased or decreased successively. The flow rate and pressure of air port can be adjusted according to the position of air port, in order to realize evenly discharging or absorbing of the air supplying pipeline. This invention is easy to assemble too.

Efficient jet flow fan

The invention discloses an efficient jet flow fan which aims at giving full play to the jet flow effect so as to improve the air production efficiency of a bladeless fan or reduce the energy consumption under the condition of producing the same air volume. The efficient jet flow fan comprises an impeller driven by a motor and an air flow channel positioned above the impeller, and also comprises an eddy flow ring with an annular eddy flow chamber, wherein the annular eddy flow chamber is intersected with the upper end of the air flow channel, diversion limbs are arranged on an inner ring of the eddy flow ring along the circumferential direction at intervals, the outer end of a diversion air channel in each diversion limb is tangentially intersected with the annular eddy flow chamber of the eddy flow ring, the inner end of the diversion air channel is communicated with a jet chamber positioned in the axial center of the eddy flow ring, and an axial jet nozzle is arranged outside the jet chamber ...

Efflux formula post air conditioner device

Efflux formula post air conditioner device to mode through single is lowered the temperature, is heated, conveniently controls the ambient temperature in local post under big space environment. Including the chamber whirl chamber of admitting air, be provided with centrifugal fan before the chamber of admitting air and communicate with each other with the whirl chamber, the whirl chamber is sprayed to chew with the axial through the efflux passageway and is linked together characterized by: the rear end in whirl chamber is provided with the annular chamber, and hoop and axial interval are provided with semiconductor cooler spare on the inner ring of annular chamber, and each semiconductor cooler spare lies in and fixedly on the outer lower surface of annular chamber sets up outer heat -conduction member, and the efflux that the whirl chamber produced belongs to the space through outer heat -conduction member.

Ventilating tower wind-power axial flow fan

Evaporation water compensating device

The invention discloses an evaporation water supplementing device capable of increasing the evaporation efficiency of evaporation heat exchanger. The evaporation water supplementing device comprises a rotating body and at least one vertical water storing and conducting pipe with a nozzle is disposed on the rotating body; the rotating body is connected with a water inlet channel which communicates with the water storing and conducting pipe; the water storing and conducting pipe forms a rotating surface while rotates with the rotating body; and the jetting mouth of the nozzle faces the lateral area of the rotating surface; the rotating body is connected with a gas channel which communicates with the water storing and conducting pipe. The water storing and conducting pipe rotates around the rotating body to realize the periodical water supplement to the metal surface of the evaporation heat exchanger, therefore leaves necessary time and space for the evaporation process, effectively improves ...

Flow-equalizing ventilation device

The invention discloses a flow-equalizing ventilation device, which is characterized by simple and convenient operation. The flow-equalizing ventilation device comprises a plurality of air openings arranged on a ventilation pipeline, wherein the ventilation pipeline comprises an opened end and a closed end, one air opening closest to the closed end of the ventilation pipeline belongs to the firstgroup, other air gaps belong to the second group, windward sections of all the air openings are parallel to the section of the ventilation pipeline, a flow limiting device is arranged at least on each air opening in the second group and is specifically arranged on the other end corresponding to the end of the windward section; and the number of the opened flow limiting devices of the air openingsarranged on the ventilation pipeline sequentially increases or decreases as the distance from the flow limiting devices to the farthest position of the closed end of the ventilation pipeline decreases gradually ...

Ventilating current equalizer

This invention discloses a air supplying and discharging pipeline, especially an evenly absorbing and discharging pipeline that is adequate for long distance air supplying and discharging pipeline. It includes a simple and convenient ventilation flow equalizer, which is composed of several air ports arranged on the ventilation pipeline. The projecting area of the air port windward sections on air supplying pipeline section are increased or decreased successively. The flow rate and pressure of air port can be adjusted according to the position of air port, in order to realize evenly discharging or absorbing of the air supplying pipeline. This invention is easy to assemble too.

Evaporation and heat-exchange periodic water replenishment device

The invention discloses an evaporation and heat-exchange periodic water replenishment device which can obtain higher evaporation and heat-exchange efficiency compared with the current continuous water replenishment manner used for periodic water replenishing for evaporation and heat-exchange device. The water replenishment device comprises a shunting main body and a rotary water replenishment pipe arranged in the shunting main body, wherein a plurality of shunting ports are arranged on the shunting main body at intervals, and a nozzle is arranged on each shunting port; a plurality of water replenishment ports are arranged on the pipe wall of the rotating water replenishment pipe; and when the rotary replenishment pipe rotates opposite to the shunting main body, each water replenishment port is respectively and periodically communicated with the shunting port correspondingly arranged on the shunting main body. The invention designs the evaporation and heat-exchange periodic water replenishment ...