Fire extinguishing system

Abstract

The utility model relates to fire extinguishing equipment, and discloses a fire extinguishing system, which comprises a fire extinguishing agent container valve (10), an outlet end of the fire extinguishing agent container valve (10) is connected with an electric control selector valve (11), an outlet (110) of the electric control selector valve is provided with a total flooding pipeline (12), the electric control selector valve (11) is connected with a pack-level pipeline (13), the pack-level pipeline (13) is communicated with an inlet end of the electric control selector valve, the electric control selector valve (11) is provided with a fire detection pipe (14), and the fire detection pipe (14) is communicated with the inlet end of the electric control selector valve. And the tail end of the fire detection tube is connected with a fire extinguishing agent container valve (10). When the fire extinguishing system application in the energy storage container lacks an emergency starting function, the whole fire extinguishing system is in a paralyzed state once a cable or a control system in a cabin is damaged. According to the scheme, the fire extinguishing system can be started in a pure physical form, and the reliability is higher. And when the fire detection tube burns, the fire extinguishing agent container valve and the electric control selection valve are both physically started, so that the reliability and the stability of fire extinguishing are ensured.

Description

Technical Field

[0001] The utility model relates to fire extinguishing equipment, in particular to a fire extinguishing system. Background Art

[0002] In recent years, as lithium batteries have many advantages such as high energy density, high output power, and long charge and discharge life, they have been widely used in the fields of transportation power, power storage, mobile communications, etc., and have developed into a part of my country's strategic emerging energy industry.

[0003] With the in-depth application of lithium batteries in engineering, system integrators are pursuing higher economic benefits and continuously improving the energy density of single cabinets, making battery packs larger and larger, battery clusters higher and higher, and occupying a larger and larger proportion of space. Along with this, the requirements for fire protection are getting higher and higher. The standard "Safety Regulations for Electrochemical Energy Storage Power Stations" stipulates that electrochemical energy storage power stations should be equipped with fire water supply systems, and automatic fire extinguishing systems should be installed in battery compartments. The minimum protection unit of the fire extinguishing system should be the battery module. At present, for the fire protection scheme that is widely used in energy storage containers, it is usually chosen to set up multiple independent fire protection pipe networks in the cabin, such as gas full flooding fire protection pipe networks, water sprinkler fire protection pipe networks, etc. This form will have the following disadvantages: ① The criss-crossed pipe network system not only causes considerable difficulties in construction; ② Multiple pipe networks will occupy too much space, resulting in the inability to accurately arrange detectors, sensors and other equipment in the cabin to the use position, affecting the use effect; ③ This type of pipe network can only be used by full flooding or immersion, which is very effective in the face of the characteristics of lithium batteries that continuously generate heat and easily cause fires that re-ignite.

[0004] The existing fire protection system also discloses multiple sets of independent fire protection pipe networks, for example, the publication number is CN116251315A, which discloses independent full flooding fire protection pipe networks, pack-level pipe networks and fire detection pipe networks. The pack-level pipes and fire detection pipes are all installed on the fire extinguishing agent container valve, which makes the structure of the fire extinguishing agent container more complicated, with more connection points, and the risk of leakage increases accordingly. The fire extinguishing agent container valve leakage inspection is more cumbersome and labor-intensive. An electrically controlled selector valve is also provided in this scheme, but the full flooding pipeline on the electrically controlled selector valve and the pack-level pipeline on the fire extinguishing agent container valve are arranged in parallel, and the two are connected by a short pipe. When the fire is uncontrollable, the full flooding method of fire extinguishing must be controlled by the electrical signal of the electrically controlled selector valve, otherwise it cannot be started, and this method has poor reliability. Utility Model Content

[0005] The utility model aims at the shortcomings of the prior art and provides a fire extinguishing system.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] The fire extinguishing system comprises a fire extinguishing agent container valve, the outlet end of the fire extinguishing agent container valve is connected to an electric control selection valve, the outlet of the electric control selection valve is installed with a full flooding pipeline, the electric control selection valve is connected to a pack-level pipeline, the pack-level pipeline is connected to the inlet end of the electric control selection valve, a fire detection pipe is installed on the electric control selection valve, and the end of the fire detection pipe is connected to the fire extinguishing agent container valve.

[0008] Preferably, the electrically controlled selector valve is connected to a pack main pipe, on which at least two zone-controlled solenoid valves are installed, and a pack-level pipeline is installed at the outlet end of each zone-controlled solenoid valve.

[0009] Preferably, the flooding pipeline is connected to a water fire fighting pipeline, and a one-way valve is installed on the water fire fighting pipeline.

[0010] Preferably, the electrically controlled selector valve comprises a selector valve body and an upper selector valve core in the selector valve body. When the electrically controlled selector valve is not started, the upper selector valve core blocks the connection between the inlet of the electrically controlled selector valve and the outlet of the electrically controlled selector valve. A pipe joint is installed on the selector valve body, the pack-level pipeline is connected to the pipe joint, and the pipe joint is connected to the inlet of the electrically controlled selector valve.

[0011] Preferably, an upper valve core cavity is provided in the electrically controlled selector valve, and a fire detection pipe joint for installing a fire detection pipe is provided on the selector valve body, and the fire detection pipe joint is communicated with the upper valve core cavity.

[0012] Preferably, a lower selection valve core is installed at the lower end of the selection valve body, a lower valve core cavity connected to the upper valve core cavity is provided on the electrically controlled selection valve, a first exhaust hole connected to the lower valve core cavity is provided on the lower selection valve core, the other end of the first exhaust hole is connected to the outside of the selection valve body, and a first driver is installed on the lower selection valve core, and the first driver is used to connect or block the first exhaust hole.

[0013] Preferably, the zone control solenoid valve includes a zone control valve body, a zone control valve core and a second driver. The zone control valve core is installed in the zone control valve body, and the second driver is installed on the zone control valve body and forms a zone control chamber with the zone control valve core. The zone control valve core is provided with an air inlet hole and a second exhaust hole both connected to the zone control chamber, the other end of the air inlet hole is connected to the inlet of the zone control valve body, and the other end of the second exhaust hole is connected to the outlet of the zone control valve body. The second driver is used to control the connection or isolation of the second exhaust hole with the zone control chamber.

[0014] Preferably, the fire extinguishing agent container valve includes a third driver and a fire extinguishing agent valve body, wherein an upper chamber and a lower chamber which are interconnected are provided in the fire extinguishing agent container valve, and a first air leakage hole which is connected to the upper chamber is provided on the fire extinguishing agent valve body, and the other end of the first air leakage hole is connected to an outlet chamber of the fire extinguishing agent valve body, and the outlet chamber is connected to an inlet end of the electrically controlled selection valve through a pipeline, and the third driver is used to control the connection or disconnection of the first air leakage hole with the upper chamber.

[0015] Preferably, the fire extinguishing agent container valve is provided with a second air leak hole and a joint cavity which are interconnected, the other end of the second air leak hole is connected to the lower chamber, the joint cavity is connected to the air inlet cavity of the fire extinguishing agent valve body, an inflation joint is installed in the joint cavity, an air valve core is installed in the inflation joint, the fire detection tube is installed on the inflation joint and is connected to the second air leak hole through the valve core.

[0016] Preferably, a hose connector is installed on the inflation joint, a filter element for pushing open the valve core is fixed inside the hose connector, the fire detection tube is installed on the inflation joint through the hose connector, and a locking piece for locking the fire detection tube is installed at the end of the hose connector.

[0017] Preferably, the locking piece is integrated, and the locking piece includes a base plate on which a plurality of claws are installed, a slot is provided at the end of the hose connector, a raised protrusion is provided on the inner wall of the slot, a gap is provided between adjacent claws, an inner clamping head protruding inward is provided on the distal inner wall of the claw, and an outer clamping head protruding outward is provided on the proximal outer wall of the claw, the inner clamping head is pressed against the outer wall of the fire detection tube, and the outer clamping head is limited on the raised portion.

[0018] Preferably, an upper valve core and a lower valve core are installed in the fire extinguishing agent valve body, and a valve cover is covered on the fire extinguishing agent valve body. An upper chamber is formed between the valve cover and the upper valve core, and a lower chamber is formed between the upper valve core and the lower valve core. An installation groove connected to the upper chamber is provided on the valve cover, and the third driver is installed in the installation groove.

[0019] The utility model has significant technical effects due to the adoption of the above technical solutions:

[0020] The current application methods are all independent applications. There will be single or multiple pipelines in a single energy storage container, which are independent of each other, occupy too much space in the structural layout, and are too cumbersome to install. In terms of fire extinguishing methods, the current application form still remains in full flooding or cluster-level fire fighting methods, which are not effective in solving lithium battery fires and have a lag. This solution adopts a shared pipeline method to solve the above problems. The pipelines are interconnected, and different pipeline application methods can be achieved by simply opening and closing the valves. At the same time, the pipeline is extended to the inside of the Pack, and the fire extinguishing medium directly acts on the battery cell, greatly improving the fire extinguishing and cooling effect and fire extinguishing efficiency.

[0021] Due to the rapid development of fires such as lithium batteries, the current fire protection system in energy storage containers lacks an emergency start function. Once the cables or control system in the cabin are damaged, the entire fire protection system will be paralyzed. This solution can ensure that the system starts the fire protection system in a purely physical form through valve structure design, which is more reliable. When the fire detection tube burns and breaks, the fire extinguishing agent container valve and the electronically controlled selection valve will be physically started, ensuring the reliability and stability of fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the engineering layout structure of this fire protection system.

[0023] Figure 2 yes Figure 1 A partial enlarged view of middle A.

[0024] Figure 3 It is a structural diagram when the electric control selection valve is not started.

[0025] Figure 4 It is a structural diagram of the zone control solenoid valve.

[0026] Figure 5 It is a schematic diagram of the structure of the fire extinguishing agent container valve.

[0027] Figure 6 It is a schematic diagram of the structure of the locking member.

[0028] Figure 7 yes Figure 5 A partial enlarged view of B.

[0029] The parts indicated by the numbers in the above figures are as follows: 10 - fire extinguishing agent container valve, 11 - electric control selection valve, 12 - total flooding pipeline, 13 - pack level pipeline, 14 - fire detection pipe, 15 - pack main pipe, 16 - zone control solenoid valve, 17 - water fire fighting pipeline, 18 - one-way valve

[0030] 101—third driver, 102—fire extinguishing agent valve body, 103—upper chamber, 104—lower chamber, 105—inflating joint, 106—valve core, 107—hose connector, 108—locking member, 109—upper valve core, 1010—lower valve core, 1011—valve cover, 1012—installation groove, 1013—filter element, 1021—first air leakage hole, 1022—outlet chamber, 1023—second air leakage hole, 1024—connector chamber, 1025—inlet chamber, 1071—card groove, 1072—protrusion, 1081—bottom plate, 1082—claw, 1083—inner clamp, 1084—outer clamp, 1085—gap

[0031] 110—export of electric-controlled selector valve, 111—selector valve body, 112—upper selector valve core, 113—inlet of electric-controlled selector valve, 114—pipe joint, 115—upper valve core cavity, 116—lower selector valve core, 117—lower valve core cavity, 118—first driver, 1161—first exhaust hole

[0032] 161 - zone control valve body, 162 - zone control valve core, 163 - second driver, 164 - zone control chamber, 165 - inlet of zone control valve body, 166 - outlet of zone control valve body, 1641 - air inlet, 1642 - second air outlet DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-7 The utility model is further described in detail with examples.

[0034] Example 1

[0035] The fire extinguishing system includes a fire extinguishing agent container valve 10, the outlet end of the fire extinguishing agent container valve 10 is connected to an electric control selection valve 11, and the outlet 110 of the electric control selection valve is installed with a full flooding pipeline 12, and the full flooding pipeline 12 is used to spray the fire extinguishing agent in the entire equipment room to achieve full flooding fire extinguishing. The electric control selection valve 11 is connected to a pack level pipeline 13, and the pack level pipeline 13 is connected to the inlet end of the electric control selection valve 11. When a fire or a fire occurs in the corresponding pack, the fire extinguishing agent container valve 10 will be activated, and the fire extinguishing agent will flow into the pack level pipeline 13 through the electric control selection valve 11. At this time, the electric control selection valve 11 is not activated, that is, the full flooding pipeline 12 is not activated. A fire detection tube 14 is installed on the electrically controlled selection valve 11, and the end of the fire detection tube 14 is connected to the fire extinguishing agent container valve 10. The electrically controlled selection valve 11 and the fire extinguishing agent container valve 10 can not only be started by electric control, but also can be started in an emergency through the fire detection tube 14. The traditional electrically controlled selection valve 11 cannot be physically started synchronously with the fire extinguishing agent container valve 10.

[0036] When the fire extinguishing system is in a state without electric drive, the common situations are: ① the fire is so big that it burns the fire control system, ② the fire linkage control host does not work, etc. The structure in which the electric control selection valve 11 is connected to the fire extinguishing agent container valve 10 through the fire detection tube 14 can solve this problem well, thereby improving the reliability of the fire extinguishing system startup. Under normal circumstances, the fire detection tube 14 is in a pressurized state, and this part of the pressure comes from the fire extinguishing agent bottle. When the electric control selection valve 11 receives this part of the pressure, it is in a locked state. When an emergency occurs, when the fire detection tube 14 is burned and broken by the fire, the gas in the fire detection tube 14 quickly escapes from the broken hole, and the fire extinguishing agent container valve 10 and the electric control selection valve 11 will be started.

[0037] The electric control selection valve 11 is connected to the pack main pipe 15, and at least two zone control solenoid valves 16 are installed on the pack main pipe 15. In this embodiment, the number of zone control solenoid valves 16 is two, and the outlet end of each zone control solenoid valve 16 is installed with a pack level pipeline 13. The zone control solenoid valve 16 can divide the equipment in the equipment room into 2 areas, each area contains 5 clusters, and each cluster has 8 stacked boxes, which are packs. Each zone control solenoid valve 16 manages 5 clusters respectively. When the fire detection system detects and determines that a fire occurs in the pack, the fire control center will send a start electrical signal to the fire extinguishing agent container valve 10 and the corresponding zone control solenoid valve 16. After the fire extinguishing agent container valve 10 and the zone control solenoid valve 16 are opened, the fire extinguishing agent will flow into the corresponding pack level pipeline 13 through the corresponding zone control solenoid valve 16, and finally flow into the burning pack. The zone control solenoid valve 16 ensures that the equipment that has not caught fire will not be affected by the fire extinguishing agent on the one hand, and on the other hand, the fire extinguishing agent is concentrated to improve the efficiency and ability of fire extinguishing.

[0038] The electric-controlled selector valve 11 comprises a selector valve body 111 and an upper selector valve core 112 in the selector valve body 111. When the electric-controlled selector valve 11 is not started, the upper selector valve core 112 blocks the communication between the inlet 113 of the electric-controlled selector valve and the outlet 110 of the electric-controlled selector valve. A pipe joint 114 is installed on the selector valve body 111. The pipe joint 114 is threadedly connected to the selector valve body 111, and the pack-level pipeline 13 is connected to the pipe joint 114. In this embodiment, the pipe joint 114 is arranged opposite to the inlet 113 of the electric-controlled selector valve, and the pipe joint 114 is connected to the inlet 113 of the electric-controlled selector valve. When the upper selector valve core 112 is not started, the fire extinguishing agent can bypass the upper selector valve core 112 and enter the pipe joint 114.

[0039] An upper valve core chamber 115 is provided in the electrically-controlled selector valve 11, and a fire detection pipe joint 114 for installing the fire detection pipe 14 is provided on the selector valve body 111. The fire detection pipe joint 114 is threadedly connected to the selector valve body 111, and the fire detection pipe joint 114 is communicated with the upper valve core chamber 115. When an emergency occurs, the fire detection tube 14 burns and breaks, the pressure in the upper valve core chamber 115 will be reduced, and the upper selector valve core 112 will be activated by the pressure difference, connecting the inlet 113 of the electrically-controlled selector valve with the outlet 110 of the electrically-controlled selector valve.

[0040] A lower selection valve core 116 is installed at the lower end of the selection valve body 111, and the lower selection valve core 116 is threadedly connected to the selection valve body 111. The electric control selection valve 11 is provided with a lower valve core chamber 117 connected to the upper valve core chamber 115. The lower selection valve core 116 is provided with a first exhaust hole 1161 connected to the lower valve core chamber 117, and the other end of the first exhaust hole 1161 is connected to the outside of the selection valve body 111. A first driver 118 is installed on the lower selection valve core 116, and the first driver 118 is used to connect or block the first exhaust hole 1161. An upper valve core chamber 115 is formed between the lower selection valve core 116 and the upper selection valve core 112, and a lower valve core chamber 117 is formed between the first driver 118 and the lower selection valve core 116. The first driver 118 may be an electromagnetic driver, and in other embodiments, may also be a motor or a cylinder driver. When the electrically controlled selection valve 11 is started by an electrical signal, the telescopic rod of the first driver 118 does not block the first exhaust hole 1161, and the air pressure in the lower valve core chamber 117 is discharged to the outside of the selection valve body 111 through the first exhaust hole 1161. Since the upper valve core chamber 115 is connected to the lower valve core chamber 117, the upper valve core chamber 115 is also depressurized, and the upper selection valve core 112 is started.

[0041] The zone control solenoid valve 16 includes a zone control valve body 161, a zone control valve core 162, and a second driver 163. The second driver 163 is an electromagnetic driver. In other embodiments, the second driver 163 can also be a motor or a cylinder starter. The zone control valve core 162 is installed in the zone control valve body 161. The second driver 163 is threadedly installed on the zone control valve body 161 and forms a zone control chamber 164 with the zone control valve core 162. The zone control valve core 162 is provided with an air inlet 1641 and a second exhaust hole 1642 both connected to the zone control chamber 164. The other end of the air inlet 1641 is connected to the inlet 165 of the zone control valve body, and the other end of the second exhaust hole 1642 is connected to the outlet 166 of the zone control valve body. When the zone control solenoid valve 16 is not started, the zone control valve core 162 cuts off the connection between the inlet 165 of the zone control valve body and the outlet 166 of the zone control valve body. The second driver 163 is used to control the connection or isolation between the second exhaust hole 1642 and the zone control chamber 164. The telescopic push rod of the second driver 163 blocks the port of the second exhaust hole 1642, or detaches from the port of the second exhaust hole 1642. When the zone control solenoid valve 16 is started, the telescopic push rod of the second driver 163 detaches from the port of the second exhaust hole 1642, and the gas in the zone control chamber 164 is discharged into the outlet 166 of the zone control valve body through the second exhaust hole 1642, and the zone control valve core 162 is opened under the action of the differential pressure. When the telescopic push rod of the second driver 163 blocks the port of the second exhaust hole 1642, the gas enters the zone control chamber 164 through the air inlet 1641, and the zone control valve core 162 is reset.

[0042] The fire extinguishing agent container valve 10 includes a third driver 101 and a fire extinguishing agent valve body 102. The third driver 101 is an electromagnetic driver. In other embodiments, the third driver 101 may also be a motor or cylinder driver. The fire extinguishing agent container valve 10 is provided with an upper chamber 103 and a lower chamber 104 that are interconnected. The fire extinguishing agent valve body 102 is provided with a first air leakage hole 1021 that is connected to the upper chamber 103. The first air leakage hole 1021 is a vertical hole. The other end of the first air leakage hole 1021 is connected to the outlet chamber 1022 of the fire extinguishing agent valve body 102. The outlet chamber 1022 is connected to the inlet end of the electric control selection valve 11 through a pipeline. The third driver 101 is used to control the first air leakage hole 1021 to be connected or disconnected with the upper chamber 103. When the first air leakage hole 1021 is connected to the upper chamber 13, the gas in the lower chamber 104 is released to the outlet chamber 1022 of the fire extinguishing agent valve body 102 through the first air leakage hole 1021, the fire extinguishing agent container valve 10 will be activated, and the inlet chamber 1025 of the fire extinguishing agent valve body 102 is connected to the outlet chamber 1022 of the fire extinguishing agent valve body 102.

[0043] An upper valve core 109 and a lower valve core 1010 are installed in the fire extinguishing agent valve body 102. The upper valve core 109 is positioned and installed on the fire extinguishing agent valve body 102. The lower valve core 1010 will be pushed open when the fire extinguishing agent container valve 10 is activated. A valve cover 1011 is closed on the fire extinguishing agent valve body 102. An upper chamber 103 is formed between the valve cover 1011 and the upper valve core 109. A lower chamber 104 is formed between the upper valve core 109 and the lower valve core 1010. The valve cover 1011 is provided with a mounting groove 1012 connected to the upper chamber 103. The third driver 101 is installed in the mounting groove 1012.

[0044] The fire extinguishing agent container valve 10 is provided with a second air leakage hole 1023 and a joint cavity 1024 which are interconnected. The other end of the second air leakage hole 1023 is connected to the lower chamber 104. The joint cavity 1024 is connected to the air inlet cavity 1025 of the fire extinguishing agent valve body 102. An inflation joint 105 is installed in the joint cavity 1024. A valve core 106 is installed in the inflation joint 105. The fire detection tube 14 is installed on the inflation joint 105 and is connected to the second air leakage hole 1023 through the valve core 106.

[0045] A hose connector 107 is installed on the inflation joint 105, and a filter element 1013 for pushing open the valve core 106 is fixed inside the hose connector 107. The filter element 1013 is interference fit on the hose connector 107. The fire detection tube 14 is installed on the inflation joint 105 through the hose connector 107. The fire detection tube 14 is installed on the hose connector 107. A locking piece 108 for locking the fire detection tube 14 is installed at the end of the hose connector 107.

[0046] Example 2

[0047] The features of Example 2 are basically the same as those of Example 1, except that a water fire fighting pipeline 17 is connected to the full flooding pipeline 12, and a one-way valve 18 is installed on the water fire fighting pipeline 17. The one-way valve 18 prevents the fire extinguishing agent from being output through the water fire fighting pipeline 17. The one-way valve 18 is a component with a pressure bearing capacity greater than the maximum working pressure of the gas circuit, and its medium flow direction is from the water fire fighting pipeline 17 to the full flooding pipeline. The water fire fighting pipeline 17 shares the full flooding pipeline 12 during fire fighting, reducing the layout of the water fire fighting pipeline. At the same time, the water fire fighting pipeline 17 can also be used to extinguish fires through the shared pack-level pipeline 13. The water pressure pushes the one-way one-way valve 18 on the pipeline to enter the full flooding pipeline 12. A part of it can be sprayed to the entire cabin through the nozzle of the full flooding pipeline 12, and the rest can enter the Pack-level pipeline 13 through the electronically controlled selection valve 11, realizing the pack-level fire fighting of water fire fighting, and protecting the thermal runaway Pack.

[0048] Example 3

[0049] The features of Example 3 are basically the same as those of Example 1 or 2, except that the locking piece 108 is integrated, and the locking piece 108 includes a base plate 1081, on which a plurality of claws 1082 are installed. In this embodiment, the number of claws 1082 is 6, and the 6 claws 1082 are evenly distributed on the base plate 1081. A groove 1071 is provided at the end of the hose connector 107, and a raised protrusion 1072 is provided on the inner wall of the groove 1071. A gap 1085 is provided between adjacent claws 1082. An inner clamping head 1083 protruding inwardly is provided on the distal inner wall of the claw 1082, and an outer clamping head 1084 protruding outwardly is provided on the proximal outer wall of the claw 1082. The inner clamping head 1083 is pressed against the outer wall of the fire detection tube 14, and the outer clamping head 1084 is limited on the protrusion 1072.

Claims

1. A fire extinguishing system, comprising a fire extinguishing agent container valve (10), wherein the outlet end of the fire extinguishing agent container valve (10) is connected to an electric control selector valve (11), and the outlet (110) of the electric control selector valve is equipped with a full flooding pipeline (12), Features: The electric control selector valve (11) is connected to a pack level pipeline (13), the pack level pipeline (13) is communicated with the inlet end of the electric control selector valve (11), a fire detection pipe (14) is installed on the electric control selector valve (11), and the end of the fire detection pipe (14) is connected to the fire extinguishing agent container valve (10).

2. The fire extinguishing system according to claim 1, Features: The electric control selection valve (11) is connected to a pack main pipe (15), and at least two zone control solenoid valves (16) are installed on the pack main pipe (15). A pack level pipeline (13) is installed at the outlet end of each zone control solenoid valve (16).

3. The fire extinguishing system according to claim 1, Features: The full flooding pipeline (12) is connected to a water fire fighting pipeline (17), and a one-way valve (18) is installed on the water fire fighting pipeline (17).

4. The fire extinguishing system according to claim 1, Features: The electric-controlled selector valve (11) comprises a selector valve body (111) and an upper selector valve core (112) in the selector valve body (111). When the electric-controlled selector valve (111) is not started, the upper selector valve core (112) blocks the communication between the inlet (113) of the electric-controlled selector valve and the outlet (110) of the electric-controlled selector valve. A pipe joint (114) is installed on the selector valve body (111). The pack-level pipeline (13) is connected to the pipe joint (114), and the pipe joint (114) is connected to the inlet (113) of the electric-controlled selector valve.

5. The fire extinguishing system according to claim 4, Features: An upper valve core chamber (115) is provided in the electric control selection valve (11), and a fire detection pipe joint (114) for installing a fire detection pipe (14) is provided on the selection valve body (111), and the fire detection pipe joint (114) is communicated with the upper valve core chamber (115).

6. The fire extinguishing system according to claim 2, Features: The zone control solenoid valve (16) comprises a zone control valve body (161), a zone control valve core (162) and a second driver (163). The zone control valve core (162) is installed in the zone control valve body (161). The second driver (163) is installed on the zone control valve body (161) and forms a zone control chamber (164) with the zone control valve core (162). The zone control valve core (162) is provided with an air inlet (1641) and a second exhaust hole (1642) both connected to the zone control chamber (164). The other end of the air inlet hole (1641) is connected to the inlet (165) of the zone control valve body, and the other end of the second exhaust hole (1642) is connected to the outlet (166) of the zone control valve body. The second driver (163) is used to control the connection or isolation of the second exhaust hole (1642) with the zone control chamber (164).

7. The fire extinguishing system according to claim 1, Features: The fire extinguishing agent container valve (10) comprises a third driver (101) and a fire extinguishing agent valve body (102). An upper chamber (103) and a lower chamber (104) which are in communication with each other are provided in the fire extinguishing agent container valve (100). A first air leakage hole (1021) which is in communication with the upper chamber (103) is provided on the fire extinguishing agent valve body (102). The other end of the first air leakage hole (1021) is in communication with an outlet chamber (1022) of the fire extinguishing agent valve body (102). The outlet chamber (1022) is in communication with an inlet end of an electric control selection valve (11) through a pipeline. The third driver (101) is used to control the first air leakage hole (1021) to be in communication with or disconnected from the upper chamber (103).

8. The fire extinguishing system according to claim 7, Features: The fire extinguishing agent container valve (10) is provided with a second air leakage hole (1023) and a joint cavity (1024) which are connected to each other. The other end of the second air leakage hole (1023) is connected to the lower chamber (104). The joint cavity (1024) is connected to the air inlet cavity (1025) of the fire extinguishing agent valve body (102). An air charging joint (105) is installed in the joint cavity (1024). An air valve core (106) is installed in the air charging joint (105). The fire detection tube (14) is installed on the air charging joint (105) and is connected to the second air leakage hole (1023) through the air valve core (106).

9. The fire extinguishing system according to claim 8, Features: A hose connector (107) is installed on the air charging connector (105), a filter element (106) for pushing open the valve core (106) is fixed in the hose connector (107), a fire detection tube (14) is installed on the air charging connector (105) through the hose connector (107), and a locking piece (108) for locking the fire detection tube (14) is installed at the end of the hose connector (107).

10. The fire extinguishing system according to claim 9, Features: The locking member (108) is an integrated member, comprising a base plate (1081), on which a plurality of clamping claws (1082) are mounted, a clamping groove (1071) is provided at the end of the hose connector (107), a raised protrusion (1072) is provided on the inner wall of the clamping groove (1071), a gap (1085) is provided between adjacent clamping claws (1082), an inner clamping head (1083) protruding inwardly is provided on the inner wall at the distal end of the clamping claw (1082), an outer clamping head (1084) protruding outwardly is provided on the outer wall at the proximal end of the clamping claw (1082), the inner clamping head (1083) is pressed against the outer wall of the fire detection tube (14), and the outer clamping head (1084) is limited on the raised protrusion (1072).

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