Improved spray head for battery compartment fire extinguishing system

Abstract

The utility model discloses an improved spray head for a battery compartment fire extinguishing system. The improved spray head comprises a spray head shell, a first piston, a second piston, an electric blasting head, a reset piece and an outer connector. An electric aeration cavity, an on-off cavity channel, a narrowing channel and a liquid outlet cavity channel are sequentially formed in the spray head shell; a gas cavity cover is mounted at one end, far away from the on-off cavity channel, of the electric explosion gas cavity, and an electric explosion head is mounted at one end, close to the on-off cavity channel, of the electric explosion gas cavity; the middle part of the on-off cavity channel is connected with an outer joint; a through opening is formed in the middle of the narrowing channel; a nozzle cover is installed at the end, away from the narrowing channel, of the liquid outlet cavity. One end of the first piston is arranged in the electric aeration cavity, and a separation sheet wheel is formed on the first piston; the other end of the first piston penetrates into the on-off cavity channel, and two liquid separation cams are oppositely arranged on the first piston; the second piston is arranged at one end, close to the narrowing channel, of the liquid outlet channel in a manner of advancing and retreating relative to the port; the reset piece is arranged between the second piston and the nozzle cover. According to the utility model, the structure is simplified, and the installation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of battery compartment fire protection system technology, and in particular to an improved sprinkler head for battery compartment fire protection systems. Background Technology

[0002] In recent years, with the continuous development of lithium battery technology, battery energy storage systems have become increasingly important in the power system. A battery energy storage system consists of multiple battery packs, and with the continuous construction and application of energy storage stations, the safety of energy storage systems is receiving increasing attention.

[0003] Prefabricated containerized energy storage systems primarily use perfluorohexanone (PFH) as the extinguishing agent. When a detector corresponding to a battery pack detects a fire signal, the fire suppression system will spray the agent onto the corresponding battery pack, battery cluster, or the entire battery compartment using output nozzles based on the detected signal.

[0004] Currently, the output sprinklers used in this fire protection system consist of a puncture valve that controls the on / off state and the sprinkler body. The system controls the opening and closing of the system with two components. However, the complex structure of this type of output sprinkler makes installation inconvenient. Utility Model Content

[0005] The purpose of this invention is to provide an improved sprinkler head for a battery compartment fire protection system.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An improved sprinkler head for a battery compartment fire suppression system includes a sprinkler head housing, a first piston, a second piston, an electric detonator, a reset element, and an external connector.

[0008] The interior of the nozzle housing extends linearly from one end to the other, sequentially forming an electric explosion gas chamber, a switching channel, a narrowing channel, and a liquid outlet channel. The electric explosion gas chamber has a gas chamber cover at the end furthest from the switching channel and the electric explosion head at the end adjacent to the switching channel. An external connector is connected to the middle of the switching channel, allowing external communication. An opening is formed in the middle of the narrowing channel. A nozzle cover is installed at the end of the liquid outlet channel furthest from the narrowing channel.

[0009] One end of the first piston is disposed in the electric explosion gas chamber, and a separator wheel is formed thereon to separate the two ends of the electric explosion gas chamber; the other end of the first piston is inserted into the on / off chamber, and two liquid-separating cams are provided thereon, which can separate the connection between the external connector and the on / off chamber relative to the electric explosion gas chamber and the narrowing channel by the two liquid-separating cams.

[0010] The second piston is positioned at one end of the liquid outlet cavity near the narrowed channel, and is capable of moving in and out relative to the port. It has a piston head that can press the port against the outlet. The reset member is positioned between the second piston and the nozzle cover. The reset member provides a driving force to the second piston, so that the second piston maintains the tendency to press against the port.

[0011] As a further technical solution of this utility model: the side of the narrowed channel facing the switch slide and the side facing the liquid outlet channel are both concave circular surfaces that are recessed towards the center.

[0012] As a further technical solution of this utility model: the second piston has a cylindrical section formed at the rear end of the piston head, and the cylindrical section is provided with a receiving groove for accommodating the reset member inside and a plurality of liquid passage grooves penetrating its front and rear ends are recessed on its outer wall.

[0013] As a further technical solution of this utility model: the reset component is a spring component.

[0014] As a further technical solution of this utility model: the liquid passage is spiral-shaped.

[0015] As a further technical solution of this utility model: the center of the air chamber cover is provided with a positioning hole for one end of the first piston to pass through.

[0016] As a further technical solution of this utility model: the nozzle cover has a spray hole in the center that communicates with the liquid outlet channel.

[0017] As a further technical solution of this utility model: there are two external connectors, which are arranged opposite to each other.

[0018] As a further technical solution of this utility model: a sealing gasket and a clamping plate are installed on the end face where the nozzle cover is located on the nozzle housing.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This utility model proposes an improved sprinkler head for battery compartment fire protection system. Through the cooperation between the sprinkler head housing, the first piston, the second piston, the electric detonator, the reset component and the external connector, the opening and closing function and the agent spraying function are integrated into one component. That is, the traditional puncture valve and the sprinkler head body are integrated into one component, which simplifies the structure and makes the installation more convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an improved sprinkler head used in a battery compartment fire suppression system.

[0021] Figure 2 This is a disassembly diagram of the sealing gaskets and clamping plates for an improved sprinkler head used in a battery compartment fire suppression system.

[0022] Figure 3This is a cross-sectional structural diagram of an improved sprinkler head used in a battery compartment fire suppression system.

[0023] Figure 4 This is a schematic diagram of the second piston. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of protection of this utility model.

[0025] Please see Figure 1 , Figure 3 An improved sprinkler head for a battery compartment fire suppression system includes a sprinkler head housing 10, a first piston 20, a second piston 30, an electric detonator 40, a reset element 50, and an external connector 60.

[0026] The interior of the nozzle housing 10 extends linearly from one end to the other, sequentially forming an electric explosion gas chamber 11, a switching channel 12, a narrowing channel 13, and a liquid outlet channel 14. The electric explosion gas chamber 11 has a gas chamber cover 111 installed at the end away from the switching channel 12, and the electric explosion head 40 installed at the end adjacent to the switching channel 12. The switching channel 12 is connected to an external connector 60 in the middle, allowing external communication. The narrowing channel 13 has a concave surface on both the side facing the switching slide and the side facing the liquid outlet channel 14, forming an opening 131 in the middle. The liquid outlet channel 14 has a nozzle cover 141 installed at the end away from the narrowing channel 13.

[0027] One end of the first piston 20 is disposed in the electric explosion gas chamber 11, and a separator wheel 21 is formed thereon to separate the two ends of the electric explosion gas chamber 11; the other end of the first piston 20 is inserted into the on / off chamber 12, and two liquid-separating cams 22 are provided thereon, which can separate the connection between the external connector 60 and the on / off chamber 12 relative to the electric explosion gas chamber 11 and the narrowing channel 13 by the two liquid-separating cams 22.

[0028] See also Figure 4 The second piston 30 is disposed at one end of the liquid outlet channel 14 adjacent to the narrowing channel 13, and is capable of moving in and out relative to the opening 131. It has a piston head 31 that can press against the opening 131 of the narrowing channel 13. The reset member 50 is disposed between the second piston 30 and the nozzle cover 141. The reset member 50 provides a driving force to the second piston 30, so that the second piston 30 maintains the operating tendency to press against the opening 131 of the narrowing channel 13.

[0029] Furthermore, in this embodiment, the second piston 30 has a cylindrical section 32 formed at the rear end of the piston head 31. The cylindrical section 32 has a receiving groove 321 for accommodating the reset member 50 inside and a plurality of liquid passage grooves 322 that pass through its front and rear ends on its outer wall; the liquid passage grooves 322 are spiral in shape.

[0030] Furthermore, in this embodiment, the reset member 50 is a spring member.

[0031] Furthermore, in this embodiment, the center of the air chamber cover 111 is provided with a positioning hole 101 for one end of the first piston 20 to pass through, so as to improve the stability of the first piston 20 when it moves after the electric detonator 40 is detonated.

[0032] Furthermore, in this embodiment, the nozzle cover 141 has a spray hole 102 at its center that communicates with the liquid outlet channel 14.

[0033] Furthermore, in this embodiment, sealing rings are provided between the gas chamber cover 111 and the electric explosion gas chamber 11, between the nozzle cover 141 and the liquid outlet channel 14, on the outer edge of the separator wheel 21, and on the outer edge of the liquid-separating cam 22 to improve sealing performance.

[0034] Furthermore, in this embodiment, there are two external connectors 60, which are arranged opposite to each other and are both connected to the middle of the on / off cavity 12.

[0035] Furthermore, in conjunction with reference Figure 2 In this embodiment, the nozzle housing 10 is equipped with a sealing gasket 103 and a clamping piece 104 on the end face where the nozzle cover 141 is located to improve the sealing performance.

[0036] Understandably, the method of using the improved sprinkler head for a battery compartment fire protection system according to this utility model is as follows: After the pipeline for delivering the agent is connected to the external connector 60, when the fire protection system is not activated, the first piston 20 uses two liquid-blocking cams 22 to separate the connection between the external connector 60 and the on / off cavity 12 relative to the electric explosion gas chamber 11 and the narrowing channel 13. Under the driving force provided by the reset member 50, the second piston 30 maintains the operating tendency to press against the opening 131 of the narrowing channel 13, thus blocking the opening 131 of the narrowing channel 13. When the fire protection system needs to be activated, the electric explosion head 40 is positioned near the on / off cavity of the electric explosion gas chamber 11. The explosion is initiated at one end of 12, generating a gas pressure thrust that acts on the separator wheel 21, causing the first piston 20 to move toward the gas chamber cover 111. The two liquid-blocking cams 22 move to the side of the connection between the outer connector 60 and the on / off channel 12 facing the electric explosion gas chamber 11, releasing the separation of the narrowing channel 13, allowing the agent to be input into the on / off channel 12 and transported toward the narrowing channel 13 and the liquid outlet channel 14. The hydraulic pressure of the agent is greater than the driving force of the reset member 50, pushing the second piston 30 against the nozzle cover 141, so that the second piston 30 releases the blockage of the opening 131, and the agent is sprayed out from the nozzle cover 141.

[0037] In summary, the improved sprinkler head for a battery compartment fire protection system of this utility model integrates opening and closing functions and agent spraying functions through the cooperation between the sprinkler head housing 10, the first piston 20, the second piston 30, the electric detonator 40, the reset component 50 and the external connector 60. This means that the traditional puncture valve and the sprinkler head body are integrated into one component, which simplifies the structure and makes installation more convenient.

[0038] Any combination of different embodiments of this utility model, provided it does not violate the inventive concept of this utility model, shall be considered as the disclosure of this utility model; any simple modifications to the technical solution and any combination of different embodiments within the scope of the inventive concept of this utility model, without violating the inventive concept of this utility model, shall be within the protection scope of this utility model.

Claims

1. An improved sprinkler head for a battery compartment fire suppression system, characterized in that: It includes a nozzle housing (10), a first piston (20), a second piston (30), an electric detonator (40), a reset component (50), and an external connector (60); The interior of the nozzle housing (10) extends linearly from one end to the other, forming an electric explosion gas chamber (11), a switching channel (12), a narrowing channel (13), and a liquid outlet channel (14) in sequence. The electric explosion gas chamber (11) has a gas chamber cover (111) installed at the end away from the switching channel (12) and the electric explosion head (40) installed at the end adjacent to the switching channel (12). The switching channel (12) is connected to the external connector (60) in the middle, and is connected to the outside through the external connector (60). The narrowing channel (13) forms an opening (131) in the middle. The liquid outlet channel (14) has a nozzle cover (141) installed at the end away from the narrowing channel (13). One end of the first piston (20) is disposed in the electric explosion gas chamber (11), and a separator wheel (21) is formed thereon to separate the two ends of the electric explosion gas chamber (11); the other end of the first piston (20) is inserted into the on / off chamber (12), and two liquid-separating cams (22) are provided thereon, which can separate the connection between the external connector (60) and the on / off chamber (12) relative to the electric explosion gas chamber (11) and the narrowing channel (13) by the two liquid-separating cams (22); The second piston (30) is disposed at one end of the liquid outlet channel (14) near the narrow channel (13) and is capable of moving in and out relative to the port (131). It has a piston head (31) that can press the port (131) against it. The reset member (50) is disposed between the second piston (30) and the nozzle cover (141). The reset member (50) provides a driving force to the second piston (30) so that the second piston (30) maintains the tendency to press against the port (131).

2. The improved sprinkler head for a battery compartment fire suppression system according to claim 1, characterized in that: The narrow channel (13) has a concave surface that is recessed towards the center on both the side facing the through / off slide and the side facing the liquid outlet channel (14).

3. The improved sprinkler head for a battery compartment fire suppression system according to claim 1, characterized in that: The second piston (30) has a cylindrical section (32) formed at the rear end of the piston head (31). The cylindrical section (32) has a receiving groove (321) for accommodating the reset member (50) inside and a plurality of liquid passage grooves (322) that pass through its front and rear ends on its outer wall.

4. The improved sprinkler head for a battery compartment fire suppression system according to claim 3, characterized in that: The reset component (50) is a spring component.

5. The improved sprinkler head for a battery compartment fire suppression system according to claim 3, characterized in that: The liquid passage (322) is spiral-shaped.

6. The improved sprinkler head for a battery compartment fire suppression system according to claim 1, characterized in that: The air chamber cover (111) has a positioning hole (101) at its center for one end of the first piston (20) to pass through.

7. The improved sprinkler head for a battery compartment fire suppression system according to claim 1, characterized in that: The nozzle cover (141) has a spray hole (102) at its center that communicates with the liquid outlet channel (14).

8. The improved sprinkler head for a battery compartment fire suppression system according to claim 1, characterized in that: There are two external connectors (60), which are arranged opposite to each other.

9. The improved sprinkler head for a battery compartment fire suppression system according to claim 1, characterized in that: The nozzle housing (10) is equipped with a sealing gasket (103) and a clamping plate (104) on the end face where the nozzle cover (141) is located.

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