CN217548836U

CN217548836U - Fire extinguishing system

Info

Publication number: CN217548836U
Application number: CN202220429383.4U
Authority: CN
Inventors: 蔡笃成; 汤文军; 张旭超; 尹国旺; 张成相; 李飞
Original assignee: Zephyr Intelligent System Shanghai Co Ltd
Current assignee: Zephyr Intelligent System Shanghai Co Ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-10-11
Anticipated expiration: 2032-03-01

Abstract

The utility model discloses a fire extinguishing system, including storing piece, pumping mechanism, first connecting pipe and a plurality of injection mechanism and a plurality of medium detector. The storage part is used for storing fire extinguishing medium; the pumping mechanism is connected with the storage piece; the first connecting pipeline is connected with a pumping mechanism, and the pumping mechanism can pump the fire extinguishing medium in the storage piece to the first connecting pipeline; the plurality of injection mechanisms are connected with the first connecting pipeline; each medium detector is arranged on a corresponding spraying mechanism to detect the fire extinguishing medium flowing through the spraying mechanism. When a fire condition takes place for a certain position, pumping mechanism begins the action, and the medium of putting out a fire flows through first connecting pipeline and injection mechanism blowout in proper order and puts out a fire, and medium detector can detect the medium of putting out a fire that flows through injection mechanism, makes things convenient for operating personnel in time to acquire the medium blowout condition of putting out a fire to guarantee in time to remedy the operation when breaking down and leading to the unable blowout of medium of putting out a fire, the security is higher.

Description

Fire extinguishing system

Technical Field

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

Background

Because the lithium battery has the advantages of large energy density, long service life and the like, the lithium battery is widely applied to the fields of traffic power, electric power energy storage and mobile communication, and becomes a part of novel strategic energy industry in China. However, the lithium battery has an energy-containing structure, and when short circuit or extrusion occurs, a large amount of heat is generated, so that chain reaction of internal motor materials and electrolyte is caused, and further, heat is out of control and fire and explosion accidents are developed.

At present generally adopt traditional fire-fighting equipment to protect the lithium cell in energy storage power station or electric ship cabin, but fire-fighting equipment can break down when not using for a long time, probably the unable spun problem of fire extinguishing agent appears, and operating personnel can't in time acquire the injection condition of fire extinguishing agent moreover, and the security is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high fire extinguishing systems of security.

A fire suppression system, comprising:

a storage for storing a fire extinguishing medium;

a pumping mechanism connected to the storage member;

a first connecting pipe connected with the pumping mechanism, wherein the pumping mechanism can pump the fire extinguishing medium in the storage part to the first connecting pipe;

a plurality of injection mechanisms, each connected to the first connecting pipe; and

a plurality of medium detectors, each medium detector is arranged on a corresponding spraying mechanism to detect the fire extinguishing medium flowing through the spraying mechanism;

wherein each of the injection mechanisms includes an on state and an off state;

when the spraying mechanism is in the conducting state, the fire extinguishing medium can be sprayed out of the spraying mechanism;

when the spraying mechanism is in the cut-off state, the spraying mechanism limits the fire extinguishing medium to pass through.

Through setting up foretell fire extinguishing systems, set up a plurality of injection mechanisms in a plurality of positions, and each injection mechanism all is in the off-state, when a certain position takes place the condition of a fire, the injection mechanism that corresponds with this position gets into the on-state, pumping mechanism also begins the action simultaneously, the medium pump sending of putting out a fire to first connecting tube in will storing, the medium of putting out a fire flows through first connecting tube in proper order and is in the injection mechanism blowout of on-state and put out a fire, and medium detector can detect the medium of putting out a fire of the injection mechanism of flowing through, make things convenient for operating personnel in time to obtain the medium of putting out a fire blowout condition, thereby ensure in time to remedy the operation when the medium of putting out a fire that results in taking place the trouble can't spout, the security is higher.

In one embodiment, the fire extinguishing system further comprises a control valve and a circulation pipeline, wherein one end of the control valve is connected with the pumping mechanism, the first connecting pipeline and the circulation pipeline are both connected with the other end of the control valve, the other end of the circulation pipeline, which is far away from the control valve, is connected with the storage part, and the control valve comprises a first passage state and a second passage state;

when the control valve is in the first passage state, the control valve communicates the pumping mechanism and the circulation pipe to cause the pumping mechanism to pump the fire extinguishing medium in the storage member to the circulation pipe;

when the control valve is in the second passage state, the control valve communicates the pumping mechanism and the first connecting pipe so that the pumping mechanism pumps the fire extinguishing medium in the storage member to the first connecting pipe.

In one embodiment, the fire extinguishing system further comprises a liquid level detector arranged in the storage member for detecting the level of the extinguishing medium.

In one embodiment, the fire suppression system further comprises a breather valve connected to a top of the storage member.

In one embodiment, the fire extinguishing system further comprises a controller electrically connected with the pumping mechanism, the battery management system and each spraying mechanism and used for controlling the actions of the pumping mechanism and the spraying mechanism according to the detection information of the battery management system.

In one embodiment, the fire extinguishing system further comprises an alarm, and the controller is further electrically connected with the alarm to control the action of the alarm according to the detection information of the battery management system.

In one embodiment, the fire extinguishing system further comprises a controller and a detector, wherein the detector is electrically connected with the controller, the detector is used for detecting temperature information, gas information and smoke information, and the controller is used for controlling the pumping mechanism and the spraying mechanism to act according to the detection information of the detector.

In one embodiment, each of the spraying mechanisms includes a second connecting pipeline, a partition valve and a plurality of nozzles, the second connecting pipeline is connected with the first connecting pipeline, the partition valve is disposed on the second connecting pipeline and used for controlling the on-off of the second connecting pipeline, each of the nozzles is connected with the second connecting pipeline, and the medium detector is connected with the second connecting pipeline and located between the partition valve and the nozzle so as to detect the fire extinguishing medium flowing through the second connecting pipeline.

In one embodiment, each of the injection mechanisms further includes a third connection pipe, each of the third connection pipes is connected between the second connection pipe and a corresponding one of the nozzles, and the medium detector is located between the partition valve and the third connection pipe.

In one embodiment, the fire suppression system further comprises a safety valve disposed at the first connecting pipe.

Drawings

Fig. 1 is a schematic view of a fire extinguishing system according to an embodiment of the present invention.

Reference numerals:

100. a fire suppression system; 200. a fire extinguishing medium; 300. a battery box; 400. a battery management system; 11. a storage member; 12. a pumping mechanism; 13. a first connecting pipe; 14. an injection mechanism; 15. a medium detector; 16. a controller; 17. a liquid level detector; 18. a breather valve; 19. a control valve; 20. a circulation pipe; 21. a safety valve; 22. an alarm; 23. a second connecting pipe; 24. a partition valve; 25. a nozzle; 26. and a third connecting pipeline.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

As shown in fig. 1, a fire extinguishing system 100 according to an embodiment of the present invention includes a storage member 11, a pumping mechanism 12, a first connecting pipe 13, a plurality of spraying mechanisms 14, and a plurality of medium detectors 15.

The storage member 11 is used for storing the fire extinguishing medium 200, the pumping mechanism 12 is connected with the storage member 11, the first connecting pipe 13 is connected with the pumping mechanism 12, and the pumping mechanism 12 can pump the fire extinguishing medium 200 in the storage member 11 to the first connecting pipe 13.

A plurality of spraying mechanisms 14 are connected to the first connecting pipe 13, and each medium detector 15 is disposed at a corresponding spraying mechanism 14 to detect the fire-extinguishing medium 200 flowing through the spraying mechanism 14.

Each injection mechanism 14 includes an on state and an off state.

When the injection mechanism 14 is in the on state, the fire extinguishing medium 200 can be ejected from the injection mechanism 14; when the injection mechanism 14 is in the cutoff state, the injection mechanism 14 restricts the passage of the fire extinguishing medium 200.

By arranging the fire extinguishing system, the plurality of injection mechanisms 14 are arranged at a plurality of positions, each injection mechanism 14 is in a cut-off state, when a fire occurs at a certain position, the injection mechanism 14 corresponding to the position enters a conducting state, meanwhile, the pumping mechanism 12 starts to act, the fire extinguishing medium 200 in the storage part 11 is pumped to the first connecting pipeline 13, the fire extinguishing medium 200 sequentially flows through the first connecting pipeline 13 and the injection mechanisms 14 in the conducting state to be sprayed out for fire extinguishing, the medium detector 15 can detect the fire extinguishing medium 200 flowing through the injection mechanisms 14, operators can conveniently obtain the spraying condition of the fire extinguishing medium 200 in time, accordingly, timely remedial operation is guaranteed when the fire extinguishing medium 200 cannot be sprayed out due to faults, and safety is high.

In addition, since the fire extinguishing medium 200 in the storage member 11 is pumped out by the pumping mechanism 12, pressure is not required, which is safer, and since pressure is not required, the change of the volume of the storage member 11 is more flexible.

It should be noted that, in this embodiment, the fire extinguishing system is applied to protection of lithium batteries. In other embodiments, the protection method can also be applied to protection in other scenarios, which is not limited herein. Of course, it is preferably applied to the protection of lithium batteries.

In addition, when the fire extinguishing system is applied to protection of lithium batteries, the plurality of injection mechanisms 14 correspond to the plurality of partitions one by one, each partition is provided with a plurality of battery boxes 300, and each battery box 300 is internally provided with a plurality of lithium batteries. In this way, when a battery in a certain section is abnormal, the injection mechanism 14 corresponding to the section can be switched to the on state alone, while the other injection mechanisms 14 are in the off state, thereby ensuring that the fire extinguishing medium 200 is not injected to other sections.

In some embodiments, the fire extinguishing System further comprises a controller 16, wherein the controller 16 is electrically connected to both the pumping mechanism 12 and the spraying mechanism 14, and the control mechanism is also electrically connected to a Battery Management System (BMS) 400 for controlling the actions of the pumping mechanism 12 and the spraying mechanism 14 according to the detection information of the BMS 400.

It can be understood that the fire extinguishing system in the embodiment is applied to protection of lithium batteries. When the battery management system 400 detects that the temperature of a certain battery is abnormal, the controller 16 acquires the information, determines the position of the battery with the abnormal temperature, controls the pumping mechanism 12 and the corresponding injection mechanism 14 to act, and injects the fire extinguishing medium 200 to the battery with the abnormal temperature, thereby ensuring the injection accuracy.

Specifically, the controller 16 receives temperature and voltage information from the battery in the battery management system 400, then determines whether thermal runaway occurs in the battery according to the information, and performs a thermal runaway warning or alarm according to the information, and also starts the fire extinguishing apparatus according to the information. The method comprises the characteristics of accurate detection and early warning, namely, the method can be used for prejudging in advance that thermal runaway possibly occurs according to the detected temperature change trend, and spraying a fire-fighting medium in time before a thermal runaway critical point to cool down, so that the probability of thermal runaway occurrence is reduced. This is due to the advantage of multi-point temperature monitoring within the battery pack that is unique to BMS.

In addition, the controller 16 may also determine the injection strategy according to the temperature and voltage information of the battery in the battery management system 400, for example, different injection dosage and times are adopted according to different thermal runaway conditions, and the information may be continuously obtained during the injection process, and the injection strategy may be adjusted according to the information.

Of course, the battery management system 400 may also provide historical data and intelligent analysis of the battery, and the controller 16 determines the variation trend and strength of the battery according to the historical data and the intelligent analysis, and then further makes a corresponding policy.

In some embodiments, the storage member 11 is a box having a receiving chamber for storing the fire extinguishing medium 200.

In some embodiments, the fire extinguishing system further comprises a liquid level detector 17, the liquid level detector 17 being arranged in the storage member 11 for detecting the level of the fire extinguishing medium 200.

It is understood that in this embodiment, the fire extinguishing medium 200 is a liquid, including but not limited to perfluorohexanone, heptafluoropropane, and the like.

In practical application, liquid level detector 17 is level gauge or liquid level switch, and sets up in the holding intracavity, and liquid level detector 17 is connected with controller 16 electricity to make things convenient for operating personnel to acquire liquid level information, supply when fire extinguishing medium 200 is less.

In some embodiments, the fire extinguishing system further comprises a breather valve 18, and the breather valve 18 is connected to the top of the storage member 11, so as to stabilize the pressure inside the storage member 11, i.e. the receiving chamber, and the outside when the fire extinguishing medium 200 is sprayed, and ensure smooth spraying of the fire extinguishing medium 200.

In some embodiments, the pumping mechanism 12 is an electric pump, and the delivery pump is connected between the reservoir 11 and the first connecting conduit 13. In this way, the pressure of the injection is made more stable.

It should be noted that the number of the delivery pumps may be one or more, and the plurality of delivery pumps may be connected in series or in parallel, as long as the fire extinguishing medium 200 in the storage member 11 can be pumped out.

In some embodiments, the fire extinguishing system further comprises a control valve 19 and a circulation pipe 20, one end of the control valve 19 is connected with the pumping mechanism 12, the first connection pipe 13 and the circulation pipe 20 are both connected with the other end of the control valve 19, and one end of the circulation pipe 20 far from the control valve 19 is connected with the storage member 11, and the control valve 19 comprises a first passage state and a second passage state.

When the control valve 19 is in the first passage state, the control valve 19 communicates the pumping mechanism 12 and the circulation pipe 20, so that the pumping mechanism 12 pumps the fire extinguishing medium 200 in the storage member 11 to the circulation pipe 20, and the fire extinguishing medium 200 circulates among the storage member 11, the pumping mechanism 12, the control valve 19 and the circulation pipe 20, thereby keeping the fire extinguishing medium 200 uniform, avoiding the occurrence of blockage during the spraying process and improving the reliability of the fire extinguishing system.

When the control valve 19 is in the second passage state, the control valve 19 communicates the pumping mechanism 12 and the first connection pipe 13 so that the pumping mechanism 12 pumps the fire-extinguishing medium 200 in the storage member 11 to the first connection pipe 13.

It will be appreciated that the control valve 19 is also electrically connected to the controller 16, and that the controller 16 normally adjusts the control valve 19 to the first passage state and controls the pumping mechanism 12 to operate either constantly or intermittently so that the fire-extinguishing medium 200 is in a circulating state. In case of fire, the controller 16 switches the control valve 19 to the second passage state, and the pumping mechanism 12 pumps the fire extinguishing medium 200 to the first connecting pipe 13 to extinguish the fire.

In practical application, the control valve 19 is a three-way electric valve.

In some embodiments, the fire suppression system further comprises a safety valve 21, the safety valve 21 being arranged in the first connection pipe 13 to open for pressure relief in case of an excessive pressure in the first connection pipe 13.

It can be understood that when the injection mechanism 14 is blocked, the first connecting pipeline 13 is blocked or the control valve 19 is normally in the second passage state, the fire extinguishing medium 200 enters the first connecting pipeline 13 but cannot be sprayed out, so that the pressure in the first connecting pipeline 13 is increased, and when the pressure is increased to a safety threshold value, the safety valve 21 is opened, and the fire extinguishing medium 200 is sprayed out for pressure relief.

In some embodiments, the fire extinguishing system further comprises an alarm 22, and the controller 16 is further electrically connected to the alarm 22 for controlling the action of the alarm 22 according to the detection information of the battery management system 400, so as to inform the operator in time and ensure that the operator can stop damage in time.

In practical applications, the alarm 22 is an audible and visual alarm, and the alarm 22 includes two parts, one is disposed in the battery storage space, and the other is disposed outside, so as to ensure the alarming function.

In some embodiments, each injection mechanism 14 includes a second connection pipe 23, a partition valve 24, and a plurality of nozzles 25, the second connection pipe 23 is connected to the first connection pipe 13, the partition valve 24 is disposed on the second connection pipe 23 for controlling on/off of the second connection pipe 23, and each nozzle 25 is connected to the second connection pipe 23.

Thus, each nozzle 25 may be disposed corresponding to one battery box 300, and each second connection pipe 23 corresponds to one partition. When a thermal runaway or a fire occurs in a battery in a certain section, the partition valve 24 corresponding to the section is opened, and the spraying mechanism 14 is brought into a conduction state, and the fire extinguishing medium 200 is sprayed from the nozzle 25 to extinguish the fire.

It will be appreciated that with the partition valve 24 open, the injection mechanism 14 is in an on state, and with the partition valve 24 closed, the injection mechanism 14 is in an off state.

In addition, a medium detector 15 is located between the partition valve 24 and the nozzle 25 to detect the fire extinguishing medium 200 flowing through the second connecting pipe 23, thereby detecting whether the fire extinguishing medium 200 is sprayed from the nozzle 25.

It should be noted that the medium detector 15 detects that the fire-extinguishing medium 200 has flowed through the second connecting duct 23, meaning that the fire-extinguishing medium 200 has passed the partition valve 24 and can subsequently be sprayed directly from the nozzle 25, so that the medium detector 15 is arranged on the downstream side of the partition valve 24.

Further, each of the injection mechanisms 14 further includes a plurality of third connecting pipes 26, each of the third connecting pipes 26 is connected between the second connecting pipe 23 and a corresponding one of the nozzles 25, and the medium detector 15 is located between the partition valve 24 and the third connecting pipe 26.

In practical applications, each nozzle 25 is installed on the corresponding battery box 300 to directly spray the fire extinguishing medium 200 into the battery box 300, thereby ensuring the fire extinguishing effect.

In some embodiments, the fire suppression system further includes a detector electrically connected to the controller 16, the detector configured to detect temperature information, gas information, and smoke information, and the controller 16 configured to control the operation of the pumping mechanism 12 and the spraying mechanism 14 according to the detected information of the detector.

It should be noted that, in the present embodiment, the fire extinguishing system is applied to protect the battery, and the controller 16 can control the actions of the pumping mechanism 12 and the spraying mechanism 14 according to the detection information of the detector and the battery management system 400, so as to determine whether the battery is in thermal runaway or in fire more accurately.

In other embodiments, when applied to a conventional scene, only the detector may be used, and when the detector detects a fire, the controller 16 controls the pumping mechanism 12 and the spraying mechanism 14 to operate to extinguish the fire according to the detection information of the detector.

In practical application, the detector is of a composite type and comprises a temperature sensor, a smoke sensor and a gas sensor, and the gas sensor can detect combustible gases such as carbon monoxide and hydrogen.

In addition, when applied to the protection of the battery, the detector may include a plurality of detectors, and a detector is disposed in each battery box 300 to make the detection more accurate.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the 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 suppression system, comprising:

a storage member for storing a fire extinguishing medium;

a pumping mechanism connected to the storage member;

a first connecting pipe connected with the pumping mechanism, wherein the pumping mechanism can pump the fire extinguishing medium in the storage piece to the first connecting pipe;

the plurality of injection mechanisms are connected with the first connecting pipeline; and

wherein each of the injection mechanisms comprises an on state and an off state;

2. The fire suppression system of claim 1, further comprising a control valve and a circulation line, the control valve being connected to the pumping mechanism at one end, the first connection line and the circulation line being connected to the other end of the control valve, and the other end of the circulation line remote from the control valve being connected to the storage member, the control valve comprising a first passage state and a second passage state;

3. The fire suppression system of claim 1, further comprising a liquid level detector disposed within the storage member for detecting a level of the fire extinguishing medium.

4. The fire suppression system of claim 1, further comprising a breather valve connected to a top of the storage member.

5. The fire suppression system of claim 1, further comprising a controller electrically connected to the pumping mechanism, the battery management system, and each of the spraying mechanisms for controlling the pumping mechanism and the spraying mechanism according to the detection information of the battery management system.

6. The fire suppression system of claim 5, further comprising an alarm, wherein the controller is further electrically connected to the alarm to control the alarm to operate according to the detection information of the battery management system.

7. The fire suppression system of claim 1, further comprising a controller and a detector electrically connected to the controller, the detector configured to detect temperature information, gas information, and smoke information, and the controller configured to control the pumping mechanism and the spraying mechanism according to the detection information of the detector.

8. The fire suppression system of claim 1, wherein each of the injection mechanisms comprises a second connection pipe connected to the first connection pipe, a partition valve provided in the second connection pipe for controlling opening and closing of the second connection pipe, and a plurality of nozzles each connected to the second connection pipe, and the medium detector is connected to the second connection pipe and between the partition valve and the nozzle to detect the fire extinguishing medium flowing through the second connection pipe.

9. The fire suppression system of claim 8, wherein each of said spray mechanisms further comprises a third connecting conduit, each of said third connecting conduits being connected between said second connecting conduit and a corresponding one of said nozzles, said media detector being located between said partition valve and said third connecting conduit.

10. The fire suppression system of claim 1, further comprising a safety valve disposed in the first connecting conduit.