Multifunctional detector of battery compartment fire extinguishing system

Abstract

The invention discloses a multifunctional detector of a battery compartment fire extinguishing system. The multifunctional detector comprises a main shell, a passage seat, an on-off piston, a puncture valve, a suction fan and a gas detection module, a shell cavity is formed in the main shell, and an inlet-outlet area and a detection area are arranged at the two ends of the shell cavity; the aisle base is installed at the bottom of the inlet and outlet area, a wide aisle and a narrow aisle are formed in the aisle base, an air outlet communicated with the middle section of the wide aisle is formed in the top of the aisle base, a first external connector and a second external connector are arranged at the bottom of the aisle base, and the first external connector is correspondingly communicated with the end, close to the narrow aisle, of the wide aisle. The second external interface is correspondingly communicated with one end of the narrow aisle away from the wide aisle; a sealing cover penetrating cylinder is installed in the wide passageway, and a membrane is arranged at the communication position of the narrow passageway and the second external connector. The on-off piston is arranged in the wide passage in a manner of advancing and retreating relative to the sealing cover penetrating cylinder; the puncture valve and the air suction fan are mounted at the top of the inlet and outlet area; the gas detection module is installed in the detection area. The structure of the battery compartment fire extinguishing system can be simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of battery compartment fire protection systems, and in particular to a multi-functional detector for a battery compartment fire protection system. Background Art

[0002] In recent years, with the continuous development of lithium battery technology, the position of battery energy storage systems in the power system has become increasingly important. A battery energy storage system includes a plurality of battery packs (PACK). With the continuous construction and application of energy storage stations, the safety of energy storage systems has received increasing attention.

[0003] In the battery compartment fire protection system of a prefabricated cabin (container) type energy storage system, each battery pack needs to be installed with a detector and a fire extinguishing agent delivery module. Because the functions of conventional detectors are relatively single and can only be used to detect fire signals, it is also necessary to set up connecting pipes between the detector and the battery pack and between the fire extinguishing agent delivery module and the battery pack respectively; when the detector detects a fire signal through the corresponding connecting pipe, according to the detected signal, the fire extinguishing agent delivery module sprays the fire extinguishing agent to the battery pack through the corresponding connecting pipe. Therefore, the structure of the battery compartment fire protection system using conventional detectors is relatively complex, resulting in inconvenient installation. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-functional detector for a battery compartment fire protection system.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A multi-functional detector for a battery compartment fire protection system includes a main housing, an aisle seat, a make-and-break piston, a puncture valve, an air suction fan, and a gas detection module;

[0007] The main housing forms a housing cavity inside, and the two ends of the housing cavity are an inlet / outlet area and a detection area; the aisle seat is installed at the bottom of the inlet / outlet area, and the aisle seat forms a wide aisle and a narrow aisle that are linearly connected and of one wide and one narrow inside. The aisle seat is provided with an air outlet communicating with the middle section of the wide aisle at the top, and the aisle seat is provided with a first external interface and a second external interface that penetrate to the outside of the main housing at the bottom. The first external interface is correspondingly communicated with one end of the wide aisle adjacent to the narrow aisle, and the second external interface is correspondingly communicated with one end of the narrow aisle far from the wide aisle; a sealing cover tube is installed in the wide aisle, and a diaphragm is provided at the communication place between the narrow aisle and the second external interface; the sealing cover tube plugs one end of the wide aisle far from the narrow aisle, and a narrow and then wide positioning tube passage and a reset tube passage are sequentially formed in the sealing cover tube in the direction towards the narrow aisle. A plurality of through ports communicating with the air outlet are opened at one end of the reset tube passage adjacent to the positioning tube passage;

[0008] The on-off piston is arranged in the wide aisle so as to be able to advance and retreat relative to the cover through-tube. It forms a piston head that seals the narrow aisle or the reset tube aisle as it advances and retreats, and a piston rod that sequentially penetrates into the reset tube aisle and the positioning tube aisle. A reset member is sleeved on the piston rod. The two ends of the reset member respectively abut against one end of the reset tube aisle adjacent to the positioning tube aisle and the piston head, providing a driving force acting on the piston head to maintain the movement trend of the piston head to seal the narrow aisle. When the piston head seals the narrow aisle, the first external interface is communicated with the wide aisle, and when the piston head seals the reset tube aisle, the first external interface is communicated with the narrow aisle;

[0009] The puncture valve and the suction fan are both installed at the top of the access area. The puncture needle of the puncture valve can penetrate into the connection between the narrow aisle and the second external interface to puncture the diaphragm; the input end of the suction fan is communicated with the air outlet, and the output end of the suction fan is arranged towards the detection area; the gas detection module is installed in the detection area to detect the concentration of smoke or harmful gas in the gas. When the detected value exceeds the standard, it sends out a signal, alarms and controls the operation of the puncture valve externally.

[0010] As a further technical solution of the present invention: a pressure cylinder is provided above the diaphragm at the connection between the narrow aisle and the second external interface, and a plurality of strip-shaped pressure holes are opened on the pressure cylinder.

[0011] As a further technical solution of the present invention: the main housing includes a bottom case and a face case detachably installed at the top of the bottom case.

[0012] As a further technical solution of the present invention: the gas detection module includes a gas detection host and a signal shielding cover that covers the gas detection host.

[0013] As a further technical solution of the present invention: one end of the reset tube aisle facing the narrow aisle forms a flared opening, and the shape of the piston head of the on-off piston matches the flared opening.

[0014] As a further technical solution of the present invention: the reset member is a spring member.

[0015] As a further technical solution of the present invention: the first external interface is connected to a nozzle on the battery pack through a connecting pipe, and the second external interface is connected to another connecting pipe for transporting the fire extinguishing agent.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the present invention proposes a multi-functional detector for a battery compartment fire protection system. Through the cooperation between the main housing, the aisle seat, the on-off piston, the puncture valve, the suction fan and the gas detection module, it can not only detect the concentration of smoke or harmful gas in the gas, but also assist in the transportation of the fire extinguishing agent, simplifying the structure of the battery compartment fire protection system and making the installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall view of a multi-functional detector for a battery compartment fire protection system.

[0018] Figure 2 It is a schematic view of the multi-functional detector for the battery compartment fire protection system after removing the front shell.

[0019] Figure 3 It is a sectional structure view of the multi-functional detector for the battery compartment fire protection system.

[0020] Figure 4 It is a schematic view of the cover through-tube. Specific embodiments

[0021] The following will detail the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the protection scope of the present invention.

[0022] Please refer to Figure 1 、 Figure 2 and Figure 3 , a multi-functional detector for a battery compartment fire protection system, comprising a main housing 10, an aisle seat 20, a make-break piston 30, a puncture valve 40, an air suction fan 50 and a gas detection module 60;

[0023] The main housing 10 forms a housing cavity 11 inside, and both ends of the housing cavity 11 are an inlet / outlet area 111 and a detection area 112;

[0024] The aisle seat 20 is installed at the bottom of the inlet / outlet area 111. The aisle seat 20 forms a wide aisle 21 and a narrow aisle 22 that are linearly penetrated and are one wide and one narrow inside. The aisle seat 20 is provided with an air outlet 23 communicating with the middle section of the wide aisle 21 at the top. The aisle seat 20 is provided with a first external interface 24 and a second external interface 25 that penetrate to the outside of the main housing 10 at the bottom. The first external interface 24 is correspondingly communicated with one end of the wide aisle 21 adjacent to the narrow aisle 22, and the second external interface 25 is correspondingly communicated with one end of the narrow aisle 22 far from the wide aisle 21; A cover through-tube 70 is installed in the wide aisle 21, and a diaphragm 81 is provided at the communication part between the narrow aisle 22 and the second external interface 25 to separate this communication part;

[0025] Combined with reference to Figure 4 , the cover through-tube 70 plugs one end of the wide aisle 21 far from the narrow aisle 22. A narrow positioning tube channel 71 and a wide reset tube channel 72 are sequentially formed in the cover through-tube 70 in the direction towards the narrow aisle 22. A plurality of through openings 73 communicating with the air outlet 23 are provided at one end of the reset tube channel 72 adjacent to the positioning tube channel 71;

[0026] The on-off piston 30 is arranged in the wide aisle 21 so as to be able to advance and retreat relative to the cover through-tube 70. It forms a piston head 31 that seals the narrow aisle 22 or the reset tube passage 72 as it advances and retreats, and a piston rod 32 that successively penetrates into the reset tube passage 72 and the positioning tube passage 71. A reset member 33 is sleeved on the piston rod 32. The two ends of the reset member 33 respectively abut against one end of the reset tube passage 72 adjacent to the positioning tube passage 71 and the piston head 31, providing a driving force acting on the piston head 31 to keep the piston head 31 in a moving trend of sealing the narrow aisle 22. When the piston head 31 seals the narrow aisle 22, the first external interface 24 communicates with the wide aisle 21, and when the piston head 31 seals the reset tube passage 72, the first external interface 24 communicates with the narrow aisle 22;

[0027] The puncturing valve 40 and the suction fan 50 are both installed at the top of the access area 111. The puncturing needle of the puncturing valve 40 can penetrate into the connection between the narrow aisle 22 and the second external interface 25 to puncture the diaphragm 81; the input end of the suction fan 50 communicates with the air outlet 23, and the output end of the suction fan 50 is arranged towards the detection area 112;

[0028] The gas detection module 60 is installed in the detection area 112 to detect the concentration of smoke or harmful gases in the gas. When the detected value exceeds the standard, it sends out a signal, alarms and controls the operation of the puncturing valve 40.

[0029] Further, in this embodiment, above the diaphragm 81 at the connection between the narrow aisle 22 and the second external interface 25, there is a pressure cylinder 82. The pressure cylinder 82 is provided with a number of vertical strip-shaped pressure holes 821, so that after the diaphragm 81 is punctured, the pressure cylinder 82 can increase the delivery pressure of the fire extinguishing agent.

[0030] Further, in this embodiment, the main housing 10 includes a bottom shell 12 and a face shell 13 detachably installed at the top end of the bottom shell 12, and the bottom shell 12 and the face shell 13 are assembled to form the main housing 10.

[0031] Further, in this embodiment, the gas detection module 60 includes a gas detection main unit 61 and a signal shielding cover 62 that covers the gas detection main unit 61.

[0032] Further, in this embodiment, one end of the reset tube passage 72 facing the narrow aisle 22 forms a flared opening, and the shape of the piston head 31 of the on-off piston 30 matches the flared opening, so that when the piston head 31 seals the narrow aisle 22, it is convenient for the first external interface 24 to communicate with the wide aisle 21 with a gap.

[0033] Further, in this embodiment, the reset member 33 is a spring member.

[0034] Further, in this embodiment, the first external interface 24 is connected to a nozzle on the battery pack through a connecting pipe, and the second external interface 25 is connected to another connecting pipe for delivering the fire extinguishing agent.

[0035] It can be understood that the usage method of the multi-functional detector of a battery compartment fire protection system of the present invention is as follows: In a non-fire state, the reset member 33 provides a driving force acting on the piston head 31, and the piston head 31 blocks the narrow aisle 22. The first external interface 24, the narrow aisle 22, the air outlet 23 and the through port 73 are in communication. The air suction fan and the gas detection module 60 are started, and the air suction fan sucks the gas from the battery pack and discharges it into the housing cavity 11 for the gas detection module 60 to detect the concentration of smoke or harmful gas in the gas. When the detected value exceeds the standard, the gas detection module 60 sends out a signal, alarms and controls the operation of the puncturing valve 40. The needle of the puncturing valve 40 penetrates into the communication part between the narrow aisle 22 and the second external interface 25 to puncture the diaphragm 81, and the fire extinguishing agent is input into the narrow aisle 22. The conveying pressure of the fire extinguishing agent is greater than the driving force of the reset member 33, pushing the piston head 31 to the reset cylinder passage 72 to block the reset cylinder passage 72. The first external interface 24 is in communication with the narrow aisle 22, and the fire extinguishing agent is sprayed onto the battery pack. Thus, the multi-functional detector of the battery compartment fire protection system can not only detect the concentration of smoke or harmful gas in the gas, but also assist in the delivery of the fire extinguishing agent, simplifying the structure of the battery compartment fire protection system and making the installation more convenient.

[0036] In summary, through the cooperation among the main housing 10, the aisle seat 20, the on-off piston 30, the puncturing valve 40, the air suction fan 50 and the gas detection module 60, the multi-functional detector of a battery compartment fire protection system of the present invention can not only detect the concentration of smoke or harmful gas in the gas, but also assist in the delivery of the fire extinguishing agent, simplifying the structure of the battery compartment fire protection system and making the installation more convenient.

[0037] As long as it does not violate the idea of the present invention, any combination of various different embodiments of the present invention should be regarded as the content disclosed in the present invention; within the scope of the technical concept of the present invention, various simple modifications of the technical solutions and any combination of different embodiments that do not violate the idea of the present invention should be within the protection scope of the present invention.

Claims

1. A multi-functional detector for a battery compartment fire protection system, characterized in that: It includes a main housing (10), an aisle seat (20), a on-off piston (30), a puncture valve (40), an air suction fan (50) and a gas detection module (60); The main housing (10) has a housing cavity (11) formed inside, and both ends of the housing cavity (11) are an inlet / outlet area (111) and a detection area (112); the aisle seat (20) is installed at the bottom of the inlet / outlet area (111), and the aisle seat (20) has a wide aisle (21) and a narrow aisle (22) that are straight and penetrate through, with a wide and a narrow width. The aisle seat (20) has an air outlet (23) opened at the top and communicating with the middle section of the wide aisle (21). The aisle seat (20) has a first external interface (24) and a second external interface (25) that penetrate out of the main housing (10) at the bottom. The first external interface (24) is correspondingly communicated with one end of the wide aisle (21) adjacent to the narrow aisle (22), and the second external interface (25) is correspondingly communicated with the end of the narrow aisle (22) far from the wide aisle (21); a sealing cover through-tube (70) is installed in the wide aisle (21), and a diaphragm (81) is provided at the communication position between the narrow aisle (22) and the second external interface (25); the sealing cover through-tube (70) plugs the end of the wide aisle (21) far from the narrow aisle (22), and a positioning tube passage (71) and a reset tube passage (72) with a narrow and then a wide width are sequentially formed in the sealing cover through-tube (70) in the direction towards the narrow aisle (22). A plurality of through ports (73) communicating with the air outlet (23) are opened at one end of the reset tube passage (72) adjacent to the positioning tube passage (71); The on-off piston (30) is arranged in the wide aisle (21) so as to be able to advance and retreat relative to the sealing cover through-tube (70). It forms a piston head (31) that blocks the narrow aisle (22) or the reset tube passage (72) as it advances and retreats, and a piston rod (32) that sequentially penetrates into the reset tube passage (72) and the positioning tube passage (71). A reset member (33) is sleeved on the piston rod (32), and both ends of the reset member (33) respectively abut against one end of the reset tube passage (72) adjacent to the positioning tube passage (71) and the piston head (31), providing a driving force acting on the piston head (31) to keep the piston head (31) in a moving trend of blocking the narrow aisle (22). When the piston head (31) blocks the narrow aisle (22), the first external interface (24) is communicated with the wide aisle (21), and when the piston head (31) blocks the reset tube passage (72), the first external interface (24) is communicated with the narrow aisle (22); The puncture valve (40) and the air suction fan (50) are both installed at the top of the inlet / outlet area (111). The puncture needle of the puncture valve (40) can penetrate into the communication position between the narrow aisle (22) and the second external interface (25) to puncture the diaphragm (81); the input end of the air suction fan (50) is communicated with the air outlet (23), and the output end of the air suction fan (50) is arranged towards the detection area (112); the gas detection module (60) is installed in the detection area (112) to detect the concentration of smoke or harmful gases in the gas. When the detected value exceeds the standard, it sends out a signal, alarms and controls the operation of the puncture valve (40).

2. The multi-functional detector of the battery compartment fire protection system according to claim 1, characterized in that: Above the diaphragm (81) at the connection between the narrow aisle (22) and the second external interface (25), a pressure cylinder (82) is provided, and a number of vertically strip-shaped pressure holes (821) are formed on the pressure cylinder (82).

3. The multi-functional detector of the battery compartment fire protection system according to claim 1, characterized in that: The main housing (10) includes a bottom case (12) and a face case (13) detachably mounted on the top end of the bottom case (12).

4. The multifunctional detector of the battery compartment fire protection system according to claim 1, characterized in that: The gas detection module (60) includes a gas detection main unit (61) and a signal shielding cover (62) covering the gas detection main unit (61).

5. The multi-functional detector of the battery compartment fire protection system according to claim 1, characterized in that: One end of the reset cylinder passage (72) facing the narrow aisle (22) forms a flared opening, and the shape of the piston head (31) of the on-off piston (30) matches the flared opening.

6. The multi-functional detector of the battery compartment fire protection system according to claim 1, characterized in that: The reset member (33) is a spring member.

7. The multi-functional detector of the battery compartment fire protection system according to claim 1, characterized in that: The first external interface (24) is connected to a spray head on the battery pack through a connecting pipe, and the second external interface (25) is connected to another connecting pipe for transporting the fire extinguishing agent.

Images