CN214971358U - Passenger car and passenger car fire safety system thereof - Google Patents

Abstract

The utility model relates to a passenger train and passenger train fire safety coefficient thereof. The passenger car fire safety system comprises a gas fire extinguishing device, a fire fighting pipeline, a plurality of electronic branch valves and a plurality of detection pieces. The gas fire extinguishing device has an outlet port capable of ejecting a gaseous extinguishing agent. The fire fighting pipeline comprises a main fire fighting pipe and a plurality of branch fire fighting pipes. One end of each fire-fighting branch pipe is used for being respectively arranged in the fire-fighting spaces in a one-to-one correspondence mode. The electronic branch valves are respectively arranged on the fire branch pipes in a one-to-one correspondence mode. Each detection piece is used for detecting the environmental information in the corresponding fire-fighting space. Each detection piece is respectively in communication connection with the gas fire extinguishing device and the corresponding electronic branch valve and is used for controlling the gas fire extinguishing device and the corresponding electronic branch valve to be opened according to the environmental information. Therefore, the passenger car fire safety system guarantees the fire-fighting effect and simultaneously gives consideration to lower processing cost.

Description

Passenger car and passenger car fire safety system thereof

Technical Field

The utility model relates to a vehicle fire control technical field especially relates to a passenger train and passenger train fire safety coefficient.

Background

In the current social life, a passenger car is an important vehicle for people to travel for a short distance. With the frequent occurrence of passenger car accidents in recent years, the fire safety of passenger cars has become an important concern for people. In order to increase the fire safety performance of a passenger car, a fire safety system is generally arranged on the passenger car.

At present, in order to guarantee the fire extinguishing effect of each area on a passenger car, at least one fire extinguishing device and the like are required to be respectively installed in each important area of the passenger car for the fire extinguishing safety system used on the passenger car, and in order to guarantee the use safety of the fire extinguishing safety system, at least one control system is generally required to be arranged so as to control the automatic operation of the whole fire extinguishing safety system, so that the fire extinguishing effect of the fire extinguishing safety system is guaranteed, and the processing cost is also very high.

SUMMERY OF THE UTILITY MODEL

Therefore, the passenger car and the passenger car fire safety system with lower processing cost and better fire protection effect are provided for solving the problem of higher processing cost of the traditional passenger car fire safety system.

A passenger car fire safety system comprises a gas fire extinguishing device, a fire fighting pipeline, a plurality of electronic branch valves and a plurality of detection pieces;

the gas fire extinguishing device is provided with an output port capable of spraying a gas fire extinguishing agent;

the fire fighting pipeline comprises a main fire fighting pipe communicated with the output port and a plurality of branch fire fighting pipes communicated with the main fire fighting pipe; one ends of the fire branch pipes, which are far away from the fire main pipe, are used for being respectively arranged in the fire fighting spaces in a one-to-one correspondence manner;

the electronic branch valves are respectively and correspondingly arranged on the fire branch pipes;

the plurality of detection pieces are arranged in the plurality of fire fighting spaces in a one-to-one correspondence manner; each detection piece is used for detecting environmental information in the corresponding fire-fighting space;

each detection piece is respectively in communication connection with the fire extinguishing device and the corresponding electronic branch valve and is used for controlling the gas fire extinguishing device and the corresponding electronic branch valve to be opened according to the environment information;

wherein the environmental information includes at least one of temperature information, smoke information, and flame information.

In some of these embodiments, the gas fire extinguishing unit includes a stored pressure fire extinguisher and an electronic main valve; the pressure storage type fire extinguisher is provided with the output port; the electronic main valve is arranged on the fire main pipe; the detection piece is in communication connection with the electronic main valve and is used for controlling the electronic main valve to be opened according to the environment information, so that the gas fire extinguishing device is opened.

In some of these embodiments, the gas fire suppression apparatus includes a fire suppression container, a sealing piston, a gas generator, and an actuator in communication with each of the detection members; the sealing piston is accommodated in the fire extinguishing container and is in sliding contact with the inner wall of the fire extinguishing container so as to divide the space in the fire extinguishing container into a first chamber and a second chamber; the side wall of the fire extinguishing container is provided with the output port communicated with the second chamber;

the gaseous extinguishing agent is contained within the second chamber; the gas generator comprises a shell and a gas generating piece accommodated in the shell; the shell is arranged on the outer wall of the fire extinguishing container and is communicated with the first chamber; the starter is connected with the gas generating piece and used for triggering the gas generating piece according to the environmental information to generate high-pressure gas.

In some of these embodiments, the initiator is a pyrotechnic structure;

the gas generating piece is a combustible substance; the starter is used for igniting the gas generating piece to generate high-pressure gas; or

The gas generating piece comprises a containing shell, a safety plug piece and compressed gas; the starter is used for igniting the compressed gas to form high-pressure gas; a gas jet orifice is formed in the part, facing one side of the sealing piston, of the side wall of the containing shell; the safety blocking piece is arranged at the gas jet orifice and used for blocking the gas jet orifice and automatically conducting when high-pressure gas is formed in the containing shell.

In some embodiments, the gas generating element is used for generating high-temperature and high-pressure gas under the triggering of the starter; the gas fire extinguishing device further comprises a cooling piece, wherein the cooling piece is contained in the first cavity and used for cooling high-temperature high-pressure gas generated by the gas generation piece.

In some of these embodiments, the cooling member is a cooling substance particle; the temperature reducing substance particles are used for absorbing the heat of the high-pressure gas contacted with the temperature reducing substance particles; or

The cooling piece comprises a radiating pipe network and cooling liquid contained in the radiating pipe network.

In some of these embodiments, each of the fire branch pipes includes a first fire branch pipe in communication with the fire main and at least one second fire branch pipe in communication with the first fire branch pipe; the second fire fighting pipe is used for being arranged in the corresponding fire fighting space.

In some embodiments, at least one spray head is arranged at one end of each fire branch far away from the fire main.

A passenger car comprises a car body and the fire safety system of the passenger car;

the vehicle body is provided with a plurality of fire-fighting spaces;

one ends of the fire branch pipes, which are far away from the fire main pipe, are respectively arranged in the fire-fighting spaces in a one-to-one correspondence manner;

the plurality of detection pieces are respectively arranged in the plurality of fire-fighting spaces in a one-to-one correspondence manner.

Above-mentioned passenger train and passenger train fire control safety coefficient thereof, in the passenger train, when the environmental information that detects in this fire control space in a certain fire control space monitored shows the condition of a fire, this detection piece controls gaseous extinguishing device and the electron branch valve that corresponds immediately and opens for gaseous extinguishing agent in the gaseous extinguishing device gets into the fire control house steward through the delivery outlet, and in getting into the fire control branch pipe that corresponds with this fire control space from the fire control house steward, then carries out the fire control through the position of catching fire that this fire control branch pipe sprays to this fire control space and puts out a fire. If a plurality of fire control spaces appear the condition of a fire simultaneously, then can open through the electronic branch valve that all detect one control gas extinguishing device in the fire control space that appears the condition of a fire and every corresponds with the fire control space that appears the condition of a fire to make a gas extinguishing device just can realize simultaneously putting out a fire to the fire control in a plurality of fire control spaces. Therefore, the passenger car fire safety system can realize automatic fire fighting and extinguishing of the passenger car only by a very simple structure, so that the passenger car fire safety system has a better fire fighting effect and simultaneously gives consideration to lower processing cost.

Drawings

Fig. 1 is a block diagram of a fire safety system of a passenger car according to an embodiment of the present invention;

FIG. 2 is a block diagram of a fire safety system of a passenger car according to another embodiment of the present invention;

fig. 3 is a schematic structural view of a gas fire extinguishing apparatus in the passenger car fire safety system shown in fig. 2.

Description of reference numerals: 100. a passenger car fire safety system; 110. a gas fire extinguishing device; 111. a gaseous extinguishing agent; 112. an output port; 113a, a pressure storage type fire extinguisher; 114a, an electronic main valve; 113b, a fire extinguishing container; 1131. A first chamber; 1132. a second chamber; 114b, a sealing piston; 115b, a gas generator; 1151. a housing; 1152. a gas generating member; 116b, a starter; 117b, a cooling member; 120. a fire conduit; 121. a main fire hose; 122. fire fighting branch pipes; 140. an electronic branch valve; 150. a detection member; 160. a spray head; 200. a vehicle body; 210. a fire-fighting space.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present, unless otherwise specified. It will also be understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or one or more intervening elements may also be present.

Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.

Furthermore, the drawings are not 1: 1, and the relative dimensions of the various elements in the figures are drawn for illustration only and not necessarily to true scale.

As mentioned in the background of the invention, the conventional fire fighting system used in the passenger car usually needs to install at least one fire extinguishing device in each important fire fighting space of the passenger car, and in order to achieve the purpose of automatic early warning and automatic fire extinguishing, a control system and other very complicated additional structures are usually required, which not only increases the volume of the fire fighting system, but also increases the processing cost of the fire fighting system. In order to reduce the manufacturing costs of fire protection systems used on passenger vehicles, the applicant has proposed a passenger vehicle fire protection safety system.

Fig. 1 shows a block diagram of a passenger car fire safety system 100 according to an embodiment of the present invention. Fig. 2 shows a block diagram of a passenger car fire safety system 100 according to another embodiment of the present invention. For the purpose of illustration, the drawings show only the structures associated with embodiments of the invention.

The utility model provides a passenger train (not shown) and passenger train fire safety system 100 thereof. The passenger car comprises a car body 200 and a passenger car fire safety system 100.

The vehicle body 200 has a plurality of fire-fighting spaces 210. The fire protection space 210 refers to a space or an area in which important components, easily-heated components, flammable components, control circuits, and the like are disposed in the vehicle body 200, for example, an engine compartment, a battery box, a local area of a passenger compartment, and the like. The passenger car fire safety system 100 is mainly used for realizing fire fighting in each fire protection space 210 so as to reduce the probability of fire and explosion of the passenger car and strive for time for escape or rescue of personnel on the passenger car, thereby improving the fire safety of the passenger car in the using process.

Referring to fig. 1 and 2, a passenger car fire safety system 100 according to a preferred embodiment of the present invention includes a gas fire extinguishing device 110, a fire fighting pipeline 120, a plurality of electronic branch valves 140, and a plurality of detecting elements 150.

The gas fire extinguishing device 110 is filled with a gas fire extinguishing agent 111 (not shown). The gas fire extinguishing device 110 has an outlet 112 through which a gas fire extinguishing agent 111 can be sprayed. When a fire occurs, the gas in the gas fire extinguishing device 110 is extinguished and is ejected through the outlet 112 to be sent to the fire location for fire extinguishing. The gas fire extinguishing device 110 may be a pressure-storage type fire extinguishing device, a non-pressure-storage type fire extinguishing device, or the like.

Specifically, the gaseous extinguishing agent 111 includes at least one of carbon dioxide, hexafluoropropane, heptafluoropropane, perfluorohexanone, and an inert gas. Compared with the traditional dry powder extinguishing agent, the gas extinguishing agent 111 has stronger extinguishing performance, and has the characteristics of no corrosivity to protected objects and easy cleaning. Therefore, the use of the gaseous extinguishing agent 111 not only makes the fire extinguishing effect of the passenger car fire safety system 100 better, but also makes the cleaning work after fire disaster more simple and easy while having higher use safety.

The fire conduit 120 includes a fire main 121 in communication with the outlet 112 and a plurality of fire branches 122 in communication with the fire main 121. One ends of the fire branch pipes 122 far away from the fire main 121 are used for being respectively arranged in the fire-fighting spaces 210 in a one-to-one correspondence manner. In a passenger car, the gas fire extinguishing apparatus 110 communicates the outlet 112 of the gas fire extinguishing apparatus 110 with a plurality of fire extinguishing spaces 210 through a fire main 121 and a plurality of fire branch pipes 122.

Specifically, each fire branch 122 includes a first fire pipe (not shown) in communication with the main 121 and at least one second fire pipe (not shown) in communication with the first fire pipe. The second fire hose is for being disposed within a corresponding fire-extinguishing space 210. Wherein, the export of second fire control pipe can set up in the position that is close to more easily on fire to guarantee that gaseous extinguishing agent 111 through second fire control pipe spun can spray to the position of catching fire as much as possible, realize effectively putting out a fire, and improve fire control effect.

The number of second fire hose in each fire space 210 is generally related to the number of locations or components in the space that are susceptible to fire. Of course, in order to ensure the fire extinguishing effect and reliability, a plurality of second fire fighting pipes may be arranged for a certain location or component in the fire fighting space 210 that is easy to fire.

The plurality of electronic branch valves 140 are respectively mounted on the plurality of fire branch pipes 122 in a one-to-one correspondence. That is, one electronic branch valve 140 is installed at each fire branch pipe 122. When one of the electronic branch valves 140 is opened, the fire branch pipe 122 corresponding to the electronic branch valve 140 is in a conducting state; when one of the electronic branch valves 140 is closed, the fire branch pipe 122 corresponding to the electronic branch valve 140 is in a blocking state. The electronic branch valve 140 is an electronic valve, and can be automatically opened by an electric signal. Specifically, the electronic branch valve 140 may be an electric valve, an electromagnetic valve, a puncture valve, or the like.

The plurality of detection members 150 are adapted to be disposed in a one-to-one correspondence within the plurality of fire spaces 210. In the passenger car, the detection member 150 is provided in each fire extinguishing space 210. Each detection member 150 is used to detect environmental information within the corresponding fire space 210. The detecting member 150 may be a single detector or sensor, or may be composed of a plurality of detectors or sensors.

The environmental information includes at least one of temperature information, smoke information, and flame information. When one of the detecting members 150 detects that the temperature in the corresponding fire-fighting space 210 is higher than the preset temperature threshold, the smoke concentration is higher than the preset concentration threshold, obvious open fire flames appear, a special infrared band appears, and at least one of special ultraviolet bands appears, it is indicated that a fire condition has occurred in the fire-fighting space 210.

Each detection member 150 is in communication connection with the gas fire extinguishing apparatus 110 and the corresponding electronic branch valve 140, and is used for controlling the gas fire extinguishing apparatus 110 and the corresponding electronic branch valve 140 to be opened according to the environmental information. When the detecting member 150 in a certain fire-fighting space 210 detects that a fire occurs in the fire-fighting space 210, the gas fire extinguishing device 110 and the corresponding electronic branch valve 140 are opened, the main fire-fighting pipe 121 and the corresponding branch fire-fighting pipe 122 are conducted, and the gaseous fire extinguishing agent 111 in the gas fire extinguishing device 110 is sprayed out from the outlet 112 and then is sprayed into the fire-fighting space 210 through the main fire-fighting pipe 121 and the corresponding branch fire-fighting pipe 122 to extinguish the fire.

Even if a fire occurs in some or all of the fire-fighting spaces 210, the detecting members 150 in all of the fire-fighting spaces 210 in which the fire occurs control the gas fire extinguishing apparatus 110 and each of the electronic branch valves 140 corresponding to the fire-fighting spaces 210 in which the fire occurs to open, so as to extinguish the fire in all of the fire-fighting spaces 210 in which the fire occurs through the gas fire extinguishing apparatus 110.

Therefore, the passenger car fire safety system 100 can simultaneously realize fire fighting of a plurality of fire spaces 210 by only one gas fire extinguishing device 110, and the structure of the passenger car fire safety system 100 is greatly simplified. And the opening of the gas fire extinguishing device 110 and the electronic branch valve 140 is directly controlled by being associated with the corresponding detecting member 150, so that compared with the conventional vehicle fire extinguishing system, the control device is omitted, and the structure of the passenger car fire extinguishing system 100 is further simplified. Therefore, the passenger car fire safety system 100 has a very simple structure while ensuring the fire protection effect on the passenger car, thereby reducing the volume of the passenger car fire safety system 100 and reducing the processing cost of the passenger car fire safety system 100.

In some embodiments, the detector 150 includes at least one of a temperature detector, a smoke temperature composite detector, and a flame detector. In a passenger vehicle, the type of the sensing member 150 may be selected to be appropriate according to the initial fire or the imminent fire in each fire space 210, to ensure the reliability of the fire detection. Of course, a plurality of different types of detecting members 150 may be disposed in one fire-fighting space 210, for example, a flame detector and a smoke temperature composite detector may be disposed in one fire-fighting space 210.

In some embodiments, one or more spray nozzles 160 are provided at the end of each fire branch 122 remote from the main 121. In a passenger vehicle, a spray head 160 is disposed within each fire-extinguishing space 210. Specifically, the opening of the nozzle head 160 is disposed toward the location of easy ignition. When a fire occurs in a fire-fighting space 210, the gaseous extinguishing agent 111 in the gaseous extinguishing device 110 is sprayed from the nozzle 160 to the fire-fighting position through the fire-fighting pipe 120 to extinguish the fire. The nozzle 160 is configured to change the size of the flow path of the gaseous extinguishing agent 111, so that the pressure of the gaseous extinguishing agent 111 sprayed from the nozzle 160 is increased, thereby increasing the spraying distance of the gaseous extinguishing agent 111 on the site of fire, and ensuring the safety and the fire-fighting effect of the fire-fighting pipeline 120.

When the fire branch 122 includes a first fire branch and a second fire branch, the number of the spray heads 160 provided in each fire-fighting space 210 is related to the number of the second fire branch 122. Specifically, a spray head 160 is mounted at an end of each second fire hose remote from the first fire hose.

Referring to fig. 1 again, in an embodiment of the present invention, the gas fire extinguisher 110 includes a stored pressure type fire extinguisher 113a and an electronic main valve 114 a. The pressure-storing fire extinguisher 113a has an output port 112. The electronic main valve 114a is mounted on the fire main 121. The detecting member 150 is communicatively connected to the electronic main valve 114a and is used to control the electronic main valve 114a to be opened according to the environmental information, so that the gas fire extinguishing apparatus 110 is opened. The electronic main valve 114a is an electronic valve, and can be automatically opened by an electric signal. Specifically, the electronic main valve 114a may be an electric valve, an electromagnetic valve, a puncture valve, or the like.

In the actual use process, when a fire is detected by the corresponding detecting elements 150 in any one or more fire-fighting spaces 210, all the detecting elements 150 in the fire-fighting spaces 210 with the fire send an electronic signal to the main electronic valve 114a to control the main electronic valve 114a to open, so that the main fire-fighting pipe 121 is communicated with the output port 112, and the gaseous extinguishing agent 111 in the stored-pressure fire extinguisher 113a is immediately conveyed into the fire-fighting spaces 210 with the fire through the fire-fighting pipe 120 to extinguish the fire at the fire-fighting site.

Referring to fig. 2 and 3, in another embodiment of the present invention, the gas fire extinguishing apparatus 110 includes a fire extinguishing container 113b, a sealing piston 114b, a gas generator 115b, and an actuator 116b in communication with the detecting member 150. The sealing piston 114b is accommodated in the fire extinguishing container 113b and is in sliding contact with the inner wall of the fire extinguishing container 113b to divide the space inside the fire extinguishing container 113b into a first chamber 1131 and a second chamber 1132. The side wall of the fire extinguishing container 113b is opened with an output port 112 communicating with the second chamber 1132. Gaseous extinguishing agent 111 is contained within second chamber 1132. The gas generator 115b includes a housing 1151 and a gas generating member 1152 housed in the housing 1151. The housing 1151 is disposed on an outer wall of the fire extinguishing container 113b and communicates with the first chamber 1131. The initiator 116b is connected to the gas generating element 1152 and is used to trigger the gas generating element 1152 to generate high pressure gas according to environmental information.

In actual use, when a fire is detected in any one or more of the fire-fighting spaces 210 by the corresponding detecting members 150, all of the detecting members 150 in the fire-fighting spaces 210 in which the fire occurs send an electronic signal to the actuator 116b to control the actuator 116b to trigger the gas generating member 1152, so as to generate a large amount of high-pressure gas in the housing 1151; the high pressure gas in the housing 1151 rapidly enters the first chamber 1131, such that the pressure in the first chamber 1131 rapidly rises, thereby pushing the sealing piston 114b to move in a direction away from the first chamber 1131, so as to push the gaseous extinguishing agent 111 in the second chamber 1132 out of the output port 112 and deliver the gaseous extinguishing agent through the fire fighting pipe 120 into the fire-fighting space 210 with fire, so as to extinguish the fire.

In addition, since the gaseous extinguishing agent 111 is not compressed in the extinguishing container 113b in the gas fire extinguishing apparatus 110 in the non-use state, the pressure in the extinguishing container 113b is equal to or close to the atmospheric pressure, and the possibility of explosion or the like of the extinguishing container 113b due to excessive internal pressure in the non-use state is avoided.

Specifically, in one embodiment, initiator 116b is a pyrotechnic structure, such as a friction ignition device, an electronic ignition device, or the like. The gas generant 1152 is a combustible material such as gunpowder or the like. Initiator 116b is used to ignite gas generant 1152 to produce high pressure gas. In use, the initiator 116b, when automatically activated under the control of the detection member 150, generates a spark, flame, or the like, and the gas generating member 1152 is ignited by the spark, flame, or the like, thereby generating high-pressure gas.

In another embodiment, the gas generant assembly 1152 includes a containment vessel (not shown), a rupture disc (not shown), and a pressurized gas (not shown). Initiator 116b is used to ignite the compressed gas to form a high pressure gas. The side wall of the housing case is provided with a gas injection port at a position facing the side of the seal piston 114 b. The safety blocking piece is arranged at the gas jet orifice and used for blocking the gas jet orifice and automatically conducting when high-pressure gas is formed in the containing shell. In the embodiment, the safety plug is an aluminum foil.

When in use, the starter 116b can generate sparks, flames and the like after being automatically started under the control of the detection piece 150, and the compressed gas in the containing shell is ignited by the sparks, the flames and the like, so that high-temperature and high-pressure gas can be generated; after high-temperature and high-pressure gas is formed in the containing shell, the pressure in the containing shell is increased rapidly, so that the high-temperature and high-pressure gas breaks through the safety blocking piece and is sprayed out from the gas spraying opening to push the sealing piston 114b to move.

Specifically, gas generant 1152 is configured to generate high temperature and high pressure gas upon actuation of initiator 116 b. For example, when gas generant 1152 is a combustible particulate material, gas generant 1152 can generate a significant amount of high temperature, high pressure gas upon actuation of initiator 116 b. The gas fire extinguishing apparatus 110 further includes a temperature reducing member 117 b. The cooling member 117b is accommodated in the first chamber 1131 and is used for cooling the high-temperature and high-pressure gas generated by the gas generating member 1152. The cooling member 117b may be a cooling material particle made of magnesium carbonate or magnesium bicarbonate, or may be a cooling structure having a cooling and heat dissipating function.

If the temperature of the high-pressure gas generated by the gas generating element 1152 is too high, the gaseous extinguishing agent 111 in the second chamber 1132 is decomposed, so that the content of the gaseous extinguishing agent 111 is reduced, thereby affecting the fire extinguishing effect of the gaseous fire extinguishing apparatus 110, and the gaseous extinguishing agent 111 is decomposed in a high-temperature environment to generate a large amount of toxic and harmful gases, which may possibly damage the disaster-stricken people, rescue personnel and the like on the site. Further, if the temperature of the high-pressure gas is too high, there is a risk that components such as the seal piston 114b in the fire extinguishing container 113b may be damaged.

Therefore, in practical use, even if the temperature of the high-pressure gas generated by the gas generating element 1152 is very high, the temperature of the high-pressure gas in contact with the sealing piston 114b is already low after the temperature is reduced by the temperature reducing element 117b in the first chamber 1131, so that the gaseous extinguishing agent 111 in the second chamber 1132 is not decomposed to affect the extinguishing effect and safety of the gas extinguishing apparatus 110, and the probability of damage to the components in the extinguishing container 113b is reduced.

More specifically, in one embodiment, the cooling member 117b is a particle of a cooling substance. The temperature reducing substance particles are used for absorbing the heat of the high-pressure gas contacted with the temperature reducing substance particles. Specifically, the cooling substance particles can be magnesium carbonate particles, magnesium bicarbonate particles and the like. Therefore, the temperature-reducing substance particles absorb heat in the high-temperature and high-pressure gas by changing the form (for example, changing the solid state into the liquid state or the gaseous state) of the temperature-reducing substance particles, so as to achieve the purpose of reducing the temperature of the high-temperature and high-pressure gas.

More specifically, in another embodiment, the cooling element 117b includes a heat dissipation pipe network (not shown) and a cooling liquid (not shown) contained in the heat dissipation pipe network. Specifically, the heat dissipation pipe network is formed by cross connection of a plurality of pipe fittings with good heat dissipation performance, and has the functions of heat dissipation and heat conduction. A plurality of spaces or channels for high-temperature and high-pressure gas to pass through are formed between the heat dissipation mesh pipes. When the high-temperature and high-pressure gas generated by the gas generating element 1152 passes through the heat dissipation pipe network, the cooling liquid can quickly take away the heat in the high-temperature and high-pressure gas, so as to achieve the purpose of cooling.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (9)

1. A fire-fighting safety system for a passenger car is characterized by comprising a gas fire-fighting device, a fire-fighting pipeline, a plurality of electronic branch valves and a plurality of detection pieces;

the gas fire extinguishing device is provided with an output port capable of spraying a gas fire extinguishing agent;

the fire fighting pipeline comprises a main fire fighting pipe communicated with the output port and a plurality of branch fire fighting pipes communicated with the main fire fighting pipe; one ends of the fire branch pipes, which are far away from the fire main pipe, are used for being respectively arranged in the fire fighting spaces in a one-to-one correspondence manner;

the electronic branch valves are respectively and correspondingly arranged on the fire branch pipes;

the plurality of detection pieces are arranged in the plurality of fire fighting spaces in a one-to-one correspondence manner; each detection piece is used for detecting environmental information in the corresponding fire-fighting space;

each detection piece is respectively in communication connection with the fire extinguishing device and the corresponding electronic branch valve and is used for controlling the gas fire extinguishing device and the corresponding electronic branch valve to be opened according to the environment information;

wherein the environmental information includes at least one of temperature information, smoke information, and flame information.

2. A fire safety system for a passenger car as claimed in claim 1, wherein the gas fire extinguishing device includes a stored pressure fire extinguisher and an electronic main valve; the pressure storage type fire extinguisher is provided with the output port; the electronic main valve is arranged on the fire main pipe; the detection piece is in communication connection with the electronic main valve and is used for controlling the electronic main valve to be opened according to the environment information, so that the gas fire extinguishing device is opened.

3. A fire safety system for a passenger vehicle as claimed in claim 1, wherein the gas fire suppression apparatus comprises a fire suppression vessel, a sealing piston, a gas generator, and an actuator in communication with each of the sensing members; the sealing piston is accommodated in the fire extinguishing container and is in sliding contact with the inner wall of the fire extinguishing container so as to divide the space in the fire extinguishing container into a first chamber and a second chamber; the side wall of the fire extinguishing container is provided with the output port communicated with the second chamber;

the gaseous extinguishing agent is contained within the second chamber; the gas generator comprises a shell and a gas generating piece accommodated in the shell; the shell is arranged on the outer wall of the fire extinguishing container and is communicated with the first chamber; the starter is connected with the gas generating piece and used for triggering the gas generating piece according to the environmental information to generate high-pressure gas.

4. A fire safety system for a passenger vehicle as claimed in claim 3, wherein the initiator is a pyrotechnic structure;

the gas generating piece is a combustible substance; the starter is used for igniting the gas generating piece to generate high-pressure gas; or

The gas generating piece comprises a containing shell, a safety plug piece and compressed gas; the starter is used for igniting the compressed gas to form high-pressure gas; a gas jet orifice is formed in the part, facing one side of the sealing piston, of the side wall of the containing shell; the safety blocking piece is arranged at the gas jet orifice and used for blocking the gas jet orifice and automatically conducting when high-pressure gas is formed in the containing shell.

5. A fire safety system for a passenger vehicle as claimed in claim 3, wherein the gas generating member is adapted to generate high temperature and high pressure gas upon activation of the actuator; the gas fire extinguishing device further comprises a cooling piece, wherein the cooling piece is contained in the first cavity and used for cooling high-temperature high-pressure gas generated by the gas generation piece.

6. A fire safety system for a passenger vehicle as claimed in claim 5, wherein the cooling member is a particulate cooling substance; the temperature reducing substance particles are used for absorbing the heat of the high-pressure gas contacted with the temperature reducing substance particles; or

The cooling piece comprises a radiating pipe network and cooling liquid contained in the radiating pipe network.

7. The fire safety system of claim 1, wherein each of the fire branch pipes includes a first fire pipe in communication with the fire main and at least one second fire pipe in communication with the first fire pipe; the second fire fighting pipe is used for being arranged in the corresponding fire fighting space.

8. A fire safety system for a passenger vehicle as claimed in claim 1, wherein each branch is provided with at least one spray head at an end remote from the main fire conduit.

9. A passenger vehicle comprising a body and a fire safety system of a passenger vehicle as claimed in any one of claims 1 to 8;

the vehicle body is provided with a plurality of fire-fighting spaces;

one ends of the fire branch pipes, which are far away from the fire main pipe, are respectively arranged in the fire-fighting spaces in a one-to-one correspondence manner;

the plurality of detection pieces are respectively arranged in the plurality of fire-fighting spaces in a one-to-one correspondence manner.

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