CN210009533U - Fire alarm distribution device for rail transit - Google Patents
Fire alarm distribution device for rail transit Download PDFInfo
- Publication number
- CN210009533U CN210009533U CN201920584332.7U CN201920584332U CN210009533U CN 210009533 U CN210009533 U CN 210009533U CN 201920584332 U CN201920584332 U CN 201920584332U CN 210009533 U CN210009533 U CN 210009533U
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- Prior art keywords
- pipe
- fire
- rail transit
- distributor
- pump
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Abstract
The utility model relates to a technical field of rail transit, for a fire alarm distribution device for rail transit, including the block terminal, separate for between putting out a fire and between the distributor in the box, install the distributor in between the distributor, fixed mounting extinguishing device in between putting out a fire, extinguishing device is including the foam box of putting out a fire, the liquid pump, the air pump, the hybrid tube, static mixer, foam distributing pipe and spray tube, install controlling means on the block terminal, install the controller in the controlling means, signal transmitter and pressure sensor, the block terminal still includes the induction pipe, the induction pipe has high-pressure gas's many forks hose for inside packing, induction pipe one end is connected with pressure sensor, pressure sensor's probe inserts in the induction pipe, can respond to gas pressure, the rest part of induction pipe stretches into and places between the distributor, the pipe wall of induction pipe is the preparation of non-refractory material. The utility model has the advantages of sensitive detection, simple structure, low cost and good fire extinguishing effect.
Description
Technical Field
The utility model belongs to the technical field of rail transit, concretely relates to fire alarm distribution device for rail transit.
Background
Because various communication systems, monitoring systems and maintenance systems are built in the subway platform, a distribution box is arranged at intervals along the platform on two sides of the rail. Most of subway rails are located in underground culverts, and the fire alarm monitoring of the distribution box is the weak point of rail safety. Once the distribution box is broken and is on fire, the rescue is inconvenient to a long time, and serious loss can be caused.
The existing technology for reducing the fire loss of the distribution box is a fire alarm image detection system, and an image acquisition module, a communication module, a signal processing and controlling device, a smoke grading alarm system and the like are adopted to alarm smoke so as to capture a fire image of a monitored area; and further managing and storing the fire image of the monitored area by establishing a database, a holder control system and the like. However, the prior art is only suitable for the track traffic distributor to detect the fire in advance after the fire occurs.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fire alarm distribution device for track traffic, the technical scheme who adopts as follows:
a fire alarm distribution device for rail transit, comprising:
the distribution box comprises a box body and a door cover, and the door cover is hinged in front of the box body;
the interior of the box body is divided into a fire extinguishing chamber and a distributor chamber, a distributor is arranged in the distributor chamber, and a fire extinguishing device is fixedly arranged in the fire extinguishing chamber;
the fire extinguishing device comprises a fire extinguishing foam box, a liquid pump, an air pump, mixing pipes, a static mixer, foam distribution pipes and spray pipes, wherein the fire extinguishing foam box, the liquid pump, the air pump, the mixing pipes and the static mixer are fixed in a fire extinguishing chamber; the liquid pumping head of the liquid pump extends into the fire extinguishing foam box and is immersed in the foaming agent in the fire extinguishing foam box; the air suction head of the air pump is communicated with the outside air, the liquid outlet of the liquid pump and the air outlet of the air pump are both connected with one end of the mixing pipe, and the other end of the mixing pipe is connected with the static mixer; the middle part of the mixing pipe is provided with a water inlet with an inclined inlet, the water inlet is connected with a tap water conveying structure, and water can enter the mixing pipe and impact a gas-liquid mixture in the mixing pipe to form rotary water flow; the outlet of the static mixer is connected with the inlet of a foam distribution pipe, distribution holes which correspond to the spray pipes one by one are formed in the foam distribution pipe, and the distribution holes are connected with the spray pipes through hoses; the spray pipe is provided with a plurality of nozzles, and when the door cover is covered on the box body, the nozzles are opposite to the power distributor;
the control device is arranged on the distribution box, the controller, the signal emitter and the pressure sensor are arranged in the control device, the controller and the signal emitter are both connected with the pressure sensor, the signal emitter is in signal connection with the rail transit control room, and the controller is connected with a switch of the tap water conveying structure, the liquid pump and the air pump and controls the switches of the tap water conveying structure, the liquid pump and the air pump;
the block terminal still is equipped with the induction pipe, and the induction pipe is inside to be filled there is high-pressure gas's many forks hose, and induction pipe one end is connected with pressure sensor, and in pressure sensor's probe inserted the induction pipe, can the induction gas pressure, the rest of induction pipe stretched into and places between the distributor, and the pipe wall of induction pipe is non-refractory material preparation.
The fire alarm power distribution device for rail transit is characterized in that the gas sealed in the induction pipe is nitrogen.
According to the fire alarm power distribution device for rail transit, the alarm is installed in the rail transit control room, the signal transmitter is in signal connection with the alarm, and when the pressure sensor senses that the gas pressure in the induction pipe drops, the signal transmitter sends a signal to the alarm, and the alarm gives an alarm.
According to the fire alarm power distribution device for rail transit, the tap water conveying structure is a tap provided with an electromagnetic valve, the tap water is in butt joint with the water inlet, and the controller is connected with the electromagnetic valve and controls the electromagnetic valve to be switched on and off.
According to the fire alarm power distribution device for rail transit, the tap water conveying structure is formed by the water tank and the water pump, the water tank is connected with the water pump, the water pump is in butt joint with the water inlet, and the controller is connected with the water pump and controls the water pump to be switched on and off.
The fire alarm power distribution device for rail transit is characterized in that the controller is a single chip microcomputer with the model number of 89C 51.
The fire alarm power distribution device for the rail transit is characterized in that the fire extinguishing room and the distributor room are isolated by the isolation board, and the isolation board is a fire-resistant board.
The fire alarm power distribution device for rail transit is characterized in that the isolation plate is a stainless steel plate.
Compared with the prior art, the beneficial effects of the utility model are that:
directly integrate the extinguishing device to the block terminal, the on-the-spot preparation of fire extinguishing agent, consequently do not need very big fire bottle, practice thrift the space, when changing the fire extinguisher, only need change the foam box of putting out a fire, effective reduce cost can.
Compared with gas fire extinguishing, foam is used for extinguishing fire, the foam is longer in existence time and can be covered on a distribution box for a longer time, so that fire fighting personnel can have more time to arrive at the site.
The middle part of the mixing pipe is provided with a water inlet with an inclined inlet, water can enter the mixing pipe and impact a gas-liquid mixture in the mixing pipe to form a rotating water flow, so that the water, the gas and the liquid are preliminarily mixed when entering the static mixer, and the foam is more uniform.
Adopt static mixer mixing foam, static mixer can select SV type blender for use, mixes effectually.
The spray pipe is designed on the door cover, once the distributor is on fire, the foam is sprayed against the distributor, and the fire extinguishing effect is good.
Adopt inside to fill the multi-fork hose that has high-pressure gas as fire inductor, in case the hose is burnt by heat, gaseous back that looses can lead to the pressure drop that pressure sensor sensed to make the alarm report to the police, the work of controller control fire extinguisher is put out a fire, and the multi-fork hose covers in the block terminal, has not started the naked light at the distributor yet, when only the temperature risees unusually, and the multi-fork hose has probably melted, thereby senses potential conflagration, and is comparatively sensitive.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:
fig. 1 is a schematic structural diagram of a fire alarm power distribution device for rail transit according to the present invention;
FIG. 2 is a schematic diagram of the power distributor after closing the door;
FIG. 3 is a schematic view of the power distributor when the door is open;
fig. 4 is a schematic view of the structure of the mixing tube.
In the figure:
distribution box 11-box body 11 a-fire extinguishing room 11 b-distributor room 11 c-isolation plate 12-door cover
2-fire extinguishing device 21-fire extinguishing foam box 22-liquid pump 23-air pump 24-mixing pipe 24 a-water inlet
25-static mixer 26-foam distribution pipe 27-nozzle 3-control device 31-controller
32-signal emitter 33-pressure sensor
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and the specific embodiments. In order to make the measures, creation features, achievement purposes and effects of the technical implementation of the present invention easy to understand and understand, the present invention is further explained below with reference to the specific drawings.
As shown in fig. 1, a fire alarm power distribution device for rail transit has a main structure:
Fig. 2 is a schematic diagram of a closed door of a distribution box 1 in a fire alarm distribution device for rail transit.
As shown in fig. 3, which is a schematic view of the power distributor 1 when opening the door, the power distributor 1 includes a box body 11 and a door cover 12, and the door cover 12 is hinged to the front of the box body 11.
Wherein, the interior of the box body 11 is divided into a fire extinguishing room 11a and a distributor room 11 b; a distributor is arranged in the distributor room 11b, and the fire extinguishing device 2 is fixedly arranged in the fire extinguishing room 11 a;
wherein, the fire extinguishing device 2 comprises a fire extinguishing foam box 21, a liquid pump 22, an air pump 23, a mixing pipe 24, a static mixer 25, a foam distribution pipe 26 and a spray pipe 27;
the fire extinguishing foam box 21, the liquid pump 22, the air pump 23, the mixing pipe 24 and the static mixer 25 are fixed in the fire extinguishing room 11 a; a plurality of spray pipes 27 are fixed on the inner side of the door cover 12 in parallel up and down; the liquid pumping head of the liquid pump 22 extends into the fire extinguishing foam box 21 and is immersed in the foaming agent in the fire extinguishing foam box 21; the air suction head of the air pump 23 is communicated with the outside air; a liquid outlet of the liquid pump 22 and a gas outlet of the air pump 23 are both connected with one end of a mixing pipe 24, and the other end of the mixing pipe 24 is connected with a static mixer 25; the middle part of the mixing pipe 24 is provided with a water inlet 24a with an inclined inlet, the water inlet 24a is connected with a tap water conveying structure, water can enter the mixing pipe 24 and impact a gas-liquid mixture in the mixing pipe 24 to form rotary water flow; the outlet of the static mixer 25 is connected with the inlet of the foam distributing pipe 26, the foam distributing pipe 26 is provided with distributing holes which are in one-to-one correspondence with the spray pipes 27, the distributing holes are connected with the spray pipes 27 through hoses, the spray pipes 27 are provided with a plurality of nozzles, and when the door cover 12 covers the box body 11, the nozzles are opposite to the distributor room 11 b;
the control device 3 is installed on the distribution box 1, the controller 31, the signal emitter 32 and the pressure sensor 33 are installed in the control device 3, the controller 31 and the signal emitter 32 are both connected with the pressure sensor 33, the signal emitter 32 is in signal connection with the rail transit control room, and the controller 31 is connected with a switch of a tap water conveying structure, the liquid pump 22 and the air pump 23 and controls the switch of the tap water conveying structure, the liquid pump 22 and the air pump 23.
In this embodiment, the gas sealed in the induction tube 4 is nitrogen.
In the embodiment, an alarm is installed in the rail transit control room, the signal emitter 32 is in signal connection with the alarm, and when the pressure sensor 33 senses that the gas pressure in the induction pipe 4 drops, the signal emitter 32 sends a signal to the alarm, and the alarm gives an alarm.
In the embodiment, the tap water conveying structure is a tap provided with a solenoid valve, the tap water is butted with the water inlet 24a, and the controller 31 is connected with the solenoid valve and controls the switch of the solenoid valve. When no proper water tap is arranged nearby, the tap water conveying structure is changed into a water tank and a water pump, the water tank is connected with the water pump, the water pump is in butt joint with the water inlet 24a, and the controller 31 is connected with the water pump and controls the water pump to be switched on and off.
In the embodiment, the controller 31 is a single chip microcomputer with the model number of 89C 51.
In the embodiment, the fire extinguishing chamber 11a and the distributor chamber 11b are isolated by an isolation plate 11c, and the isolation plate 11c is a fire-resistant plate.
In the embodiment, the partition plate 11c is a stainless steel plate.
The working method of the utility model is as follows: as shown in fig. 1, the control device 3 of each distribution box 1 is connected with a signal of a rail transit control room, and the fire extinguishing devices 2 in the distribution boxes 1 are installed according to the installation mode shown in fig. 3.
As shown in fig. 3 and 4, when the distributor in the distribution box 1 is short-circuited for any reason, the temperature rises, the induction pipe 4 is broken by heat, gas escapes to cause pressure drop of the induction pipe 4, the pressure sensor 33 senses the pressure drop of the induction pipe 4 and then respectively transmits signals to the controller 31 and the signal transmitter 32, the controller 31 controls the tap water conveying structure and the liquid pump 22, the air pump 23 simultaneously works, the liquid pump 22 pumps the foaming liquid in the fire extinguishing foam box 21, the air pump 23 pumps air, water, gas and liquid are mixed in the mixing pipe 24 and then enter the static mixer together for further mixing, the foam is sprayed out after passing through the foam distribution pipe 26 and the spray pipe 27, and the distributor 11b is covered, so that the fire point is extinguished due to insufficient oxygen.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A fire alarm distribution device for rail transit, comprising:
the distribution box comprises a box body and a door cover, and the door cover is hinged in front of the box body;
the interior of the box body is divided into a fire extinguishing chamber and a distributor chamber, a distributor is arranged in the distributor chamber, and a fire extinguishing device is fixedly arranged in the fire extinguishing chamber;
the fire extinguishing device comprises a fire extinguishing foam box, a liquid pump, an air pump, mixing pipes, a static mixer, foam distribution pipes and spray pipes, wherein the fire extinguishing foam box, the liquid pump, the air pump, the mixing pipes and the static mixer are fixed in a fire extinguishing chamber; the liquid pumping head of the liquid pump extends into the fire extinguishing foam box and is immersed in the foaming agent in the fire extinguishing foam box; the air suction head of the air pump is communicated with the outside air, the liquid outlet of the liquid pump and the air outlet of the air pump are both connected with one end of the mixing pipe, and the other end of the mixing pipe is connected with the static mixer; the middle part of the mixing pipe is provided with a water inlet with an inclined inlet, the water inlet is connected with a tap water conveying structure, and water can enter the mixing pipe and impact a gas-liquid mixture in the mixing pipe to form rotary water flow; the outlet of the static mixer is connected with the inlet of a foam distribution pipe, distribution holes which correspond to the spray pipes one by one are formed in the foam distribution pipe, and the distribution holes are connected with the spray pipes through hoses; the spray pipe is provided with a plurality of nozzles, and when the door cover is covered on the box body, the nozzles are opposite to the power distributor;
the control device is arranged on the distribution box, the controller, the signal emitter and the pressure sensor are arranged in the control device, the controller and the signal emitter are both connected with the pressure sensor, the signal emitter is in signal connection with the rail transit control room, and the controller is connected with a switch of the tap water conveying structure, the liquid pump and the air pump and controls the switches of the tap water conveying structure, the liquid pump and the air pump;
the block terminal still is equipped with the induction pipe, and the induction pipe is inside to be filled there is high-pressure gas's many forks hose, and induction pipe one end is connected with pressure sensor, and in pressure sensor's probe inserted the induction pipe, can the induction gas pressure, the rest of induction pipe stretched into and places between the distributor, and the pipe wall of induction pipe is non-refractory material preparation.
2. The fire alarm power distribution unit for rail transit of claim 1, wherein the gas sealed in the induction tube is nitrogen.
3. The fire alarm power distribution unit for rail transit as claimed in claim 1, wherein an alarm connected with a signal transmitter is installed in the rail transit control room.
4. The fire alarm power distribution device for rail transit as claimed in claim 1, wherein the tap water delivery structure is a tap equipped with a solenoid valve, the tap water is butted with the water inlet, and the controller is connected with the solenoid valve and controls the switch of the solenoid valve.
5. The fire alarm power distribution device for rail transit as claimed in claim 1, wherein the tap water delivery structure is a water tank and a water pump, the water tank is connected with the water pump, the water pump is connected with the water inlet, the controller is connected with the water pump and controls the water pump to be switched on and off.
6. The fire alarm power distribution device for rail transit as claimed in claim 1, wherein the controller is a single chip microcomputer with a model number of 89C 51.
7. The fire alarm power distribution unit for rail transit of claim 1, wherein the fire extinguishing chamber and the power distributor chamber are isolated by an isolation plate, and the isolation plate is a fire-resistant plate.
8. The fire alarm power distribution unit for rail transit of claim 7, wherein the insulation plate is a stainless steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584332.7U CN210009533U (en) | 2019-04-26 | 2019-04-26 | Fire alarm distribution device for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584332.7U CN210009533U (en) | 2019-04-26 | 2019-04-26 | Fire alarm distribution device for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210009533U true CN210009533U (en) | 2020-02-04 |
Family
ID=69315837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920584332.7U Expired - Fee Related CN210009533U (en) | 2019-04-26 | 2019-04-26 | Fire alarm distribution device for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210009533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114949697A (en) * | 2021-11-15 | 2022-08-30 | 合肥皖信信息工程有限责任公司 | High-precision fire extinguishing device suitable for central machine room and fire extinguishing method thereof |
-
2019
- 2019-04-26 CN CN201920584332.7U patent/CN210009533U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114949697A (en) * | 2021-11-15 | 2022-08-30 | 合肥皖信信息工程有限责任公司 | High-precision fire extinguishing device suitable for central machine room and fire extinguishing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200204 Termination date: 20210426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |