CN214130037U

CN214130037U - Fire extinguishing device and fire extinguishing system

Info

Publication number: CN214130037U
Application number: CN202022714219.1U
Authority: CN
Inventors: 张学森; 彭定一; 张羽; 杨兵忠
Original assignee: Zhuzhou Shidai Fire Technology Co ltd
Current assignee: Zhuzhou Shidai Fire Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-09-07
Anticipated expiration: 2030-11-20

Abstract

The utility model relates to a fire control extinguishing device and fire extinguishing system. The fire-fighting device comprises a fire-fighting container, a gas generator, a sealing piston, an initiating piece, a cooling piece and a fire extinguishing agent. The sealing piston is accommodated in the fire extinguishing container 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 an output port communicated with the second chamber. The fire extinguishing agent is contained in the second chamber. The gas generator comprises a shell and a gas generating piece contained in the shell. The shell is arranged on the outer wall of the fire extinguishing container and communicated with the first chamber. The initiation member is connected to the gas generation member and is configured to trigger the gas generation member to generate high pressure gas. The cooling piece is accommodated in the first cavity and used for cooling the high-pressure gas. The fire-fighting device can reduce the probability of producing toxic and harmful gas due to pyrolysis of the fire extinguisher in the second chamber, and has high use safety performance.

Description

Fire extinguishing device and fire extinguishing system

Technical Field

The utility model relates to a fire-fighting equipment technical field especially relates to a fire control extinguishing device and fire extinguishing system.

Background

Gaseous extinguishing agents and aerosol extinguishing agents are common in the field of fire fighting. In the using process of the fire extinguishing device, under the influence of the structure and the working principle of the fire extinguishing device, the fire extinguishing agent which is not sprayed out of the fire extinguishing device is possibly in a high-temperature state, and the fire extinguishing agent (namely, the gas fire extinguishing agent or the aerosol fire extinguishing agent) at the moment is easily decomposed, so that a great amount of toxic and harmful gas is generated. After the toxic and harmful gases are sprayed out of the fire extinguishing device, the fire extinguishing device is likely to injure disaster-stricken personnel, rescue personnel and the like on site, so that the traditional gas fire extinguishing device and the aerosol fire extinguishing device have great potential safety hazards.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a fire extinguishing apparatus and a fire extinguishing system with high safety performance to solve the problem of potential safety hazard of the conventional fire extinguishing apparatus.

A fire-fighting device comprises a fire-fighting container, a gas generator, a sealing piston, an initiating piece, a cooling piece and a fire extinguishing agent;

the sealing piston is accommodated in the fire extinguishing container and can be in sliding sealing 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; an output port communicated with the second chamber is formed in the side wall of the fire extinguishing container;

the fire extinguishing agent is contained in 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 initiating piece is connected with the gas generating piece and is used for triggering the gas generating piece to generate high-temperature and high-pressure gas;

the cooling piece is contained in the first cavity and used for cooling high-temperature and high-pressure gas generated by the gas generating piece.

In some of these embodiments, the housing and the fire suppression container are an integrally formed cylinder structure.

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

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

The gas generating piece comprises a containing shell, a safety blocking piece and compressed gas which is contained in the containing shell in a compressed mode; the initiator is used for igniting the compressed gas to form the high-temperature high-pressure gas; the side wall of the containing shell is provided with a gas injection port at the position facing one side of the sealing piston; the safety blocking piece is arranged at the gas jet orifice and used for blocking the gas jet orifice and automatically conducting when the high-temperature high-pressure gas is formed in the containing shell.

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-temperature high-pressure gas contacted with the temperature-reducing substance particles.

In some embodiments, the cooling element includes a heat dissipation pipe network and a cooling liquid contained in the heat dissipation pipe network.

In some embodiments, a partition plate is arranged in the first chamber to divide the first chamber into a buffer area and a cooling area which are communicated with each other; the cooling piece is accommodated in the cooling area; the housing is in communication with the buffer.

In some of these embodiments, the fire extinguishing agent is a perfluorohexanone fire extinguishing agent.

In some embodiments, the device further comprises a control circuit and a start button electrically connected with the control circuit; the starting button is used for receiving pressing operation and generating a preset control instruction; the control circuit is electrically connected with the initiating piece and used for controlling the starting of the initiating piece according to the preset control instruction.

In some of these embodiments, further comprising a connecting structure connected to the fire suppression container and in communication with the output port; one end of the connecting structure, which is far away from the output port, is communicated with a spray head or a fire extinguishing pipeline.

In the fire-fighting device, when a fire breaks out, the initiating piece is started to trigger the gas generating piece and generate a large amount of high-temperature high-pressure gas; then, the high-temperature high-pressure gas enters the first cavity and contacts the cooling piece to reduce the temperature of the high-temperature high-pressure gas; then the high-pressure gas after being cooled by the cooling piece pushes the sealing piston to move from the first cavity to the second cavity, and then the fire extinguishing agent in the second cavity is pushed out from the output port to extinguish fire. Therefore, even if the temperature of the high-temperature high-pressure gas generated by the gas generating piece is very high, after the temperature reduction treatment of the cooling piece, the temperature of the high-temperature high-pressure gas in contact with the sealing piston is very low, the situation that the fire extinguishing agent in the second chamber is decomposed is not caused, the probability that the fire extinguishing agent in the second chamber is decomposed at high temperature to generate toxic and harmful gases is effectively reduced, and the use safety of the fire extinguishing device is effectively improved.

A fire extinguishing system comprises the fire extinguishing device, a detection piece and a control host;

the detection piece is used for monitoring environmental information in a preset area; the environmental information includes at least one of temperature information, smoke information, and flame information;

the control host is electrically connected with the detection piece and used for controlling the initiation piece to start according to the environment information.

Based on the superiority of the fire extinguishing apparatus, the safety performance of the fire extinguishing system including the fire extinguishing apparatus is also higher.

Drawings

Fig. 1 is a block diagram of a fire fighting device according to a preferred embodiment of the present invention.

Description of reference numerals: 100. a fire extinguishing device; 110. a fire extinguishing container; 111. a first chamber; 1111. a buffer area; 1112. a cooling zone; 112. a second chamber; 113. a partition plate; 120. a sealing piston; 130. a gas generator; 131. a housing; 132. a gas generating member; 140. an initiating element; 150. a cooling member; 160. a fire extinguishing agent; 170. and (5) a connecting structure.

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.

Fig. 1 shows a schematic structural view of a fire fighting device 100 according to a preferred embodiment of the present invention. For the purpose of illustration, the drawings show only the structures associated with embodiments of the invention. The fire fighting equipment 100 according to the preferred embodiment of the present invention includes a fire extinguishing container 110, a gas generator 130, a sealing piston 120, an initiating member 140, a cooling member 150 and a fire extinguishing agent 160.

The sealing piston 120 is accommodated in the fire extinguishing container 110 and slidably and sealingly contacts the inner wall of the fire extinguishing container 110 to divide the space in the fire extinguishing container 110 into the first chamber 111 and the second chamber 112. The side wall of the fire extinguishing container 110 is opened with an outlet (not shown) communicating with the second chamber 112.

The fire extinguishing agent 160 is contained within the second chamber 112. The fire extinguishing agent 160 may be a gas fire extinguishing agent or an aerosol fire extinguishing agent. Specifically, in this embodiment, the fire extinguishing agent 160 is a perfluorohexanone fire extinguishing agent. The perfluorohexanone fire extinguishing agent may be fire extinguishing agent 160 containing only perfluorohexanone, or may be a fire extinguishing agent containing perfluorohexanone. The perfluorohexanone fire extinguishing agent is vaporized at the moment of contact with flames on the fire scene or a protected piece which is about to catch fire, so that the aim of temperature reduction and fire extinguishment is fulfilled. The perfluorohexanone has the advantages of high environmental protection performance, low corrosivity, easy cleaning and the like, so that the fire extinguishing agent 160 is set as the perfluorohexanone fire extinguishing agent, the fire extinguishing effect of the fire extinguishing device 100 can be improved, the fire extinguishing device 100 is more environment-friendly, and the fire extinguishing device is beneficial to on-site cleaning after fire rescue.

The gas generator 130 includes a housing 131 and a gas generating element 132 housed in the housing 131. The housing 131 is disposed at an outer wall of the fire extinguishing container 110 and communicates with the first chamber 111. Wherein, extinguishing container 110 is hollow shell structure, and extinguishing container 110 can be connected through modes such as welding, joint, spiro union with shell 131 to constitute mosaic structure, also can be the overall structure that integrated into one piece formed.

Specifically, the housing 131 and the fire extinguishing container 110 are formed as an integrally formed cylindrical structure. The housing 131 and the fire extinguishing container 110 are integrally formed, so that the connection between the housing 131 and the fire extinguishing container 110 is stable, and the processing technology of the fire fighting device 100 is simplified. Moreover, the shell 131 and the fire extinguishing container 110 are integrally formed into a cylindrical structure, which is beneficial to reducing the volume of the fire extinguishing apparatus 100, so that the fire extinguishing apparatus 100 can be installed or used in a narrow space.

The initiator 140 is connected to the gas generating member 132 and is used to trigger the gas generating member 132 to generate high-temperature and high-pressure gas. The gas generating member 132 may generate high-temperature and high-pressure gas through combustion, chemical reaction, and the like. The gas generating member 132 generates a large amount of high-temperature and high-pressure gas upon activation of the initiator 140.

Specifically, in one embodiment, the gas generant member 132 is a combustible substance, such as gunpowder or the like. The initiator 140 is a pyrotechnic structure such as a friction ignition device, an electronic ignition device, or the like. The initiator 140 is used to ignite the gas generant 132 to produce high temperature, high pressure gas. In use, the initiator 140 is activated to generate a spark, flame, or the like, which ignites the gas generant 132 to generate a high temperature and pressure gas.

In another embodiment, the initiation member 140 is a pyrotechnic structure. The gas generating member 132 includes a housing case (not shown), a rupture disk (not shown), and a compressed gas (not shown). The initiator 140 serves to ignite the compressed gas to form a high temperature and high pressure gas. A gas injection port (not shown) is formed at a portion of the side wall of the housing case facing the side of the sealing piston. The safety blocking piece is arranged at the gas jet orifice and used for blocking the gas jet orifice and automatically conducting when high-temperature and high-pressure gas is formed in the containing shell. In the embodiment, the safety plug is an aluminum foil.

When in use, the initiating piece 140 can generate sparks, flames and the like after being started, and the sparks, the flames and the like are utilized to ignite the compressed gas in the containing shell, 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 120 to move.

The cooling member 150 is accommodated in the first chamber 111 and is used for cooling the high-temperature and high-pressure gas generated by the gas generating member 132. The cooling member 150 may be a cooling material particle made of magnesium carbonate or magnesium bicarbonate, or a cooling structure having a cooling and heat dissipating function.

Specifically, in one embodiment, the cooling member 150 is a particulate cooling material. The temperature reducing substance particles are used for absorbing the heat of the high-temperature 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.

In another embodiment, the cooling member 150 includes a heat dissipating pipe network (not shown) installed in the first chamber 111 and a cooling liquid (not shown) contained in the heat dissipating 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 high-pressure gas generated by the gas generating element 132 passes through the heat dissipation pipe network, the cooling liquid can quickly take away the heat in the high-temperature high-pressure gas, so as to achieve the purpose of cooling.

For ease of understanding, the following is a brief description of the use of the fire fighting device 100:

(1) in the event of a fire, initiating element 140 is activated either manually or automatically;

(2) the actuated initiator 140 immediately triggers the gas generant 132 to generate a quantity of high temperature, high pressure gas within the housing 131;

(3) the high-temperature and high-pressure gas in the housing 131 rapidly enters the first chamber 111 and contacts the cooling member 150 in the first chamber 111 during the flow toward the sealing piston 120, so as to cool the high-temperature and high-pressure gas.

(4) After the high-temperature and high-pressure gas flowing into the first chamber 111 is cooled, the pressure in the first chamber 111 rises rapidly, and then the sealing piston 120 is pushed to move in the direction away from the first chamber 111, so that the fire extinguishing agent 160 in the second chamber 112 is pushed out of the outlet and extinguishes the fire toward the fire area.

Therefore, in the actual use process, even if the temperature of the high-temperature and high-pressure gas generated by the gas generating element 132 is very high, after the temperature of the high-temperature and high-pressure gas is reduced by the temperature reducing element 150 in the first chamber 111, the temperature of the high-temperature and high-pressure gas when contacting the sealing piston 120 is very low, and the fire extinguishing agent 160 in the second chamber 112 is not decomposed, so that the probability of generating toxic and harmful gases due to pyrolysis of the fire extinguishing agent 160 in the second chamber 112 is effectively reduced, and the safety of the fire extinguishing apparatus 100 is effectively improved.

If the temperature of the high-temperature and high-pressure gas is too high, the content of the fire extinguishing agent 160 after pyrolysis is reduced, and the fire extinguishing effect of the fire extinguishing apparatus 100 is impaired. Therefore, the installation of the cooling member 150 ensures the fire extinguishing effect of the fire extinguishing apparatus 100.

In addition, if the temperature of the high-temperature and high-pressure gas is too high, the high-temperature and high-pressure gas may damage parts such as the sealing piston 120 in the fire extinguishing container 110, which may affect the reliability and the service life of the fire extinguishing apparatus 100. Therefore, the arrangement of the cooling member 150 greatly reduces the probability of damage to the components in the fire extinguishing container 110.

It should be noted that, when the fire extinguishing agent is a perfluorohexanone fire extinguishing agent, since the temperature of the high-temperature and high-pressure gas is already low when the high-temperature and high-pressure gas contacts the sealing piston 120 after being cooled by the cooling member 150, the perfluorohexanone in the perfluorohexanone fire extinguishing agent in the second chamber 112 is not cracked, so that the situation that the perfluorohexanone in the perfluorohexanone fire extinguishing agent is cracked in the fire extinguishing apparatus 100 is avoided. Therefore, the cooling member 150 is disposed to make the probability of generating highly toxic gas by cracking the perfluorohexanone in the perfluorohexanone fire extinguishing agent during the use process lower, and further make the fire extinguishing apparatus 100 have higher safety in use.

In some embodiments, a partition 113 is disposed in the first chamber 111 to divide the first chamber 111 into a buffer zone 1111 and a cooling zone 1112 that are in communication with each other. The cooling member 150 is accommodated in the cooling region 1112. The housing 131 communicates with the buffer 1111. Therefore, the buffer 1111 and the housing 131 are located on the same side of the cooling zone 1112, and are both located on a side of the cooling zone 1112 away from the second chamber 112. Therefore, the high-temperature and high-pressure gas generated by the gas generator 132 in the housing 131 firstly enters the buffer zone 1111 for buffer depressurization, and then enters the cooling zone 1112 to contact with the cooling member 150 for cooling. The buffer zone 1111 buffers the high-temperature and high-pressure gas generated by the gas generating member 132 to reduce the pressure of the high-temperature and high-pressure gas, thereby avoiding the occurrence of the situations such as the damage of the fire extinguishing apparatus 100 caused by the excessive pressure of the high-temperature and high-pressure gas, not only prolonging the service life of the fire extinguishing apparatus 100, but also further improving the safety performance of the fire extinguishing apparatus 100.

In some embodiments, the fire fighting device 100 further includes a control circuit (not shown) and an activation button (not shown) electrically connected to the control circuit. The start button is used for receiving pressing operation and generating a preset control instruction. The control circuit is electrically connected to the initiating element 140 and is used for controlling the initiating element 140 to start according to a preset control command. In the event of a fire, the field personnel presses the activation button to activate the initiation member 140, thereby triggering the gas generant member 132; the gas generating member 132 generates a large amount of high-temperature and high-pressure gas to push the sealing piston 120 to move so as to spray the fire extinguishing agent 160 to the fire area for fire extinguishing. Thus, the fire extinguishing device 100 is manually activated by the activation button and the control circuit.

In some embodiments, the fire fighting device 100 further includes a connection structure 170. The connection structure 170 is connected to the fire extinguishing container 110 and communicates with the output port. The end of the connecting structure 170 remote from the outlet port communicates with a spray head (not shown) or a fire suppression line (not shown). Wherein the spray head or the fire extinguishing pipe sprays the fire extinguishing agent 160 sprayed from the fire fighting device 100 to the place where the fire is on fire or to the protected member. Therefore, the connection structure 170 is provided, so that the connection of the nozzle and the fire extinguishing pipeline on the fire fighting device 100 is more convenient and simpler.

Specifically, the connection structure 170 is directly connected to the nozzle or the fire extinguishing pipe by means of screwing, clamping, bonding, or the like, or may be connected to the nozzle or the fire extinguishing pipe by means of an auxiliary structure such as a pipe joint, a pipe hoop, or the like.

Referring to fig. 1 again, based on the fire fighting device 100, the present invention further provides a fire fighting system (not shown). The fire extinguishing system includes a fire extinguishing apparatus 100, a detecting member (not shown), and a control host (not shown).

The detection piece is used for monitoring environmental information of a preset area. Specifically, the detection part comprises at least one of a temperature detector, a flame detector, a smoke detector and a smoke temperature composite detector. The control circuit is electrically connected with the initiating piece 140 and controls the starting of the initiating piece 140 according to the environment information. Wherein the environmental information includes at least one of temperature information, smoke information, and flame information. Therefore, the detecting member includes at least one of a temperature detector, a flame detector, a smoke detector, and a smoke temperature composite detector.

When the detection part monitors that the temperature in the preset area is higher than a preset temperature threshold value, the smoke concentration is higher than a preset concentration threshold value, at least one of open flame, a special infrared band and a special ultraviolet band occurs, the control circuit immediately controls the initiation part 140 to start, so that the gas generation part 132 generates a large amount of high-temperature and high-pressure gas to push the sealing piston 120 to move, and the fire extinguishing agent 160 is sprayed to the ignition area to realize fire fighting. Therefore, the fire extinguishing system can realize an intelligent fire extinguishing function. Further, because of the excellent performance of the fire extinguishing apparatus 100, the safety of a fire extinguishing system including the fire extinguishing apparatus 100 is also high.

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

1. A fire-fighting device is characterized by comprising a fire-fighting container, a gas generator, a sealing piston, an initiating piece, a cooling piece and a fire extinguishing agent;

the fire extinguishing agent is contained in the second chamber;

2. A fire fighting unit as defined in claim 1, wherein the housing and the fire fighting vessel are of an integrally formed tubular construction.

3. A fire fighting unit as defined in claim 1, wherein said initiation member is a pilot structure;

4. A fire fighting unit as defined in claim 1, wherein said cooling member is a particle of cooling material; the temperature-reducing substance particles are used for absorbing the heat of the high-temperature high-pressure gas contacted with the temperature-reducing substance particles.

5. A fire fighting unit as defined in claim 1, wherein said cooling member includes a heat pipe network and a coolant contained in said heat pipe network.

6. A fire fighting unit as defined in claim 1, wherein a partition is provided in said first chamber to divide said first chamber into a buffer zone and a cooling zone which are communicated with each other; the cooling piece is accommodated in the cooling area; the housing is in communication with the buffer.

7. A fire fighting unit as defined in claim 1, wherein said fire extinguishing agent is a perfluorohexanone fire extinguishing agent.

8. A fire fighting unit as defined in claim 1, further comprising a control circuit and an activation button electrically connected to the control circuit; the starting button is used for receiving pressing operation and generating a preset control instruction; the control circuit is electrically connected with the initiating piece and used for controlling the starting of the initiating piece according to the preset control instruction.

9. A fire fighting unit as defined in claim 1, further comprising a connection structure connected to said fire extinguishing container and communicating with said delivery outlet; one end of the connecting structure, which is far away from the output port, is communicated with a spray head or a fire extinguishing pipeline.

10. A fire fighting system, comprising the fire fighting device according to any one of claims 1 to 9, a detection member, and a control host;

the control host is connected with the initiating piece and used for controlling the starting of the initiating piece according to the environment information.