A piercing valve with signal feedback function

Abstract

The utility model relates to the technical field of fire safety, disclose a kind of puncture valve with signal feedback function, including puncture component, the puncture component includes sleeve and the sliding plug of sliding setting in the sleeve, the sliding plug will sleeve inner portion be separated into front cavity and rear cavity, the rear cavity content is provided with for receiving electric signal and driving sliding plug to slide in the starting component of front cavity direction and the feedback component for the temperature change in rear cavity and / or the position change output feedback signal of sliding plug sliding in front cavity direction after triggering after starting component, the feedback component includes feedback element and the second terminal of electric connection to fire host computer, the second terminal and feedback element are electrically connected by second wire. The utility model can monitor puncture valve working state, and provide a variety of signal feedback implementation mode, improve the knowability and reliability of energy storage fire protection system.

Description

Technical Field

[0001] This utility model relates to the field of fire safety technology, specifically a puncture valve with signal feedback function. Background Technology

[0002] Energy storage systems are core infrastructure in the new energy field, and their safety is paramount. Battery modules are prone to thermal runaway under abnormal conditions such as overheating and overcharging, which can lead to fires or even explosions. The puncture valve, a key component in energy storage fire suppression systems, is typically installed on fire suppression pipelines or battery packs. Its function is to quickly puncture the sealed diaphragm upon receiving a fire signal, releasing fire extinguishing agents to achieve rapid fire suppression. The reliability and response speed of this valve directly affect the effectiveness of the entire fire suppression system.

[0003] Currently, existing puncture valves have relatively simple functions, typically containing only a mechanical puncture mechanism driven by an electric explosion. Their operation involves the fire alarm control panel issuing a command, triggering an actuator (such as an electric spark head) to push a puncture needle to puncture the sealing membrane, releasing the agent. However, these valves lack feedback functionality regarding their operational status. Key status information, such as whether the valve has been successfully activated and whether the puncture needle is functioning correctly, cannot be monitored and relayed to the fire alarm control panel in real time. This prevents maintenance personnel from remotely verifying the execution of fire alarm actions and determining whether the system is operating normally, thus posing a potential safety hazard to the entire energy storage system.

[0004] Therefore, there is an urgent need for a puncture valve with signal feedback function, which can immediately generate a feedback signal and transmit it to the fire alarm control panel after the puncture valve is successfully activated, thereby realizing real-time remote monitoring of whether the puncture valve has been successfully activated and whether the puncture needle is operating normally. Utility Model Content

[0005] The purpose of this invention is to provide a puncture valve with signal feedback function to solve the problems mentioned in the background art, so as to achieve the purpose of monitoring the working status of the puncture valve through feedback signal.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A puncture valve with signal feedback function includes a puncture component. The puncture component includes a sleeve and a sliding plug slidably disposed within the sleeve. The sliding plug divides the interior of the sleeve into a front chamber and a rear chamber. The puncture component further includes: The activation component, housed within the rear cavity, is used to receive electrical signals and drive the sliding plug to slide towards the front cavity; A feedback component, housed within the rear cavity, is used to output a feedback signal based on the temperature change within the rear cavity caused by the activation component and / or the positional change of the sliding plug in the forward cavity direction. The feedback component includes: Feedback element, used to detect the working status of the startup component and send feedback signal; The second terminal is electrically connected to the fire alarm control panel. The second wire electrically connects the second terminal block and the feedback element.

[0007] As a further embodiment of this utility model: in order to seal and separate the different flow channels within the puncture valve, the puncture valve further includes a valve body and a sealing element, the sealing element being fixedly disposed within the valve cavity of the valve body, and the puncture component being mounted on the valve body.

[0008] As a further embodiment of this utility model: in order to puncture the seal and reduce the flow resistance of the fire-fighting agent and improve the release efficiency of the fire-fighting agent, the puncturing component further includes a puncturing needle fixedly connected to the sliding plug. The puncturing needle is located in the front cavity and its tip points towards the seal. The puncturing needle is a hollow tube and also includes a through groove formed on the outer peripheral wall of the puncturing needle.

[0009] As a further solution of this utility model: to provide sufficient driving force to the sliding plug to ensure that the piercing needle can stably pierce the seal, The startup component includes: An electric igniter is used to generate high-temperature, high-pressure gas after being energized to drive the sliding plug; The first terminal is used for electrical connection to an external control circuit to receive a start signal; As a further embodiment of this invention: to monitor whether the sliding plug and the puncture needle are operating normally, the feedback element is set as a push switch. The push switch is pressed by the sliding plug through a pressing block and sends a feedback signal after the sliding plug moves to release the pressing block.

[0010] As a further aspect of this utility model: to improve the resistance to mechanical vibration interference when monitoring the puncture valve, the feedback element is set as a normally open temperature sensor, which conducts and sends a feedback signal under high temperature.

[0011] As a further aspect of this invention: in order to detect whether the feedback loop is intact (initially there should be a signal) during the system power-on self-test, the feedback element is set as a normally closed temperature sensor, which disconnects and sends a feedback signal under high temperature.

[0012] As a further embodiment of this utility model: in order to concentrate the driving force generated by the electric spark head and to reduce the weight of the sliding plug, a groove is provided at the end of the sliding plug away from the seal, and the electric spark head is placed in the groove.

[0013] As a further embodiment of this utility model: in order to facilitate the assembly and maintenance of the starting component and the feedback component in the sleeve and to ensure the sealing of the rear cavity, the puncturing component also includes a sealing block for sealing the rear cavity. The inner side wall of the sleeve near the rear cavity is threaded, and one end of the sealing block is formed with a connector that is threadedly connected to the sleeve.

[0014] As a further embodiment of this utility model: in order to facilitate the lead-out of the first wire and the second wire, ensure the airtightness of the rear cavity, and facilitate the installation and disassembly of the sealing block, the sealing block further includes a wire hole opened on the sealing block, the wire hole is sealed with sealant, and the outer peripheral wall of the end of the sealing block located outside the sleeve is hexagonal.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a novel structure. The feedback component, upon activation of the starting component (e.g., after electric ignition), generates a clear electrical feedback signal via the pressing or releasing of a push-button switch or the on / off state of a temperature sensor. This signal is transmitted to the fire alarm control panel via a second terminal. This allows maintenance personnel to remotely and in real-time confirm whether the puncture valve has successfully responded to the start command and executed its action, enabling real-time monitoring and remote feedback of the valve's operational status. Furthermore, it allows for the selection of various feedback implementation schemes (such as push-button triggering or normally open / normally closed temperature sensor triggering) to meet different application scenarios, thus improving the product's applicability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 This is a schematic diagram of the piercing component of this utility model; Figure 5 This is a schematic diagram of the sliding plug and puncture needle of this utility model; Figure 6 This is a schematic diagram of the structure of the starting component of this utility model; Figure 7 This is a schematic diagram of the push-button switch in the feedback component of this utility model; Figure 8 This is a schematic diagram of the normally open temperature sensor in the feedback component of this utility model; Figure 9 This is a schematic diagram of the normally closed temperature sensor in the feedback component of this utility model. In the diagram: 1-valve body, 2-seal, 3-piercing component, 31-sleeve, 31a-front cavity, 31b-rear cavity, 32-sliding plug, 321-groove, 33-piercing needle, 331-through groove, 34-starting assembly, 341-electric spark head, 342-first terminal, 343-first wire, 35-feedback assembly, 351-feedback element, 3511-press switch, 3512-press block, 3513-normally open temperature sensor, 3514-normally closed temperature sensor, 352-second terminal, 353-second wire, 36-seal block, 361-wire hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations.

[0019] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] Please see Figure 1-9 In this embodiment of the present invention, a puncture valve with signal feedback function includes a valve body 1, which has a valve cavity inside. In this embodiment, the valve body 1 is specifically a three-way valve body, that is, it has one inlet and two outlets. Figure 2As shown, a sealing element 2 is threadedly connected to the valve cavity of valve body 1. This sealing element is used to seal and separate the different flow channels between the inlet and the two outlets within valve body 1. When the sealing element 2 is intact, the inlet connects to the first outlet. When the sealing element 2 is punctured, the inlet connects to the second outlet, and the fire extinguishing agent flows out from the second outlet to the area with fire hazard. In this embodiment, the sealing element 2 is specifically a hexagonal threaded plug.

[0021] like Figure 2 and Figure 4 As shown, the piercing component 3 is mounted on the valve body 1. The piercing component 3 includes a sleeve 31, one end of which is threaded onto the valve body 1. A sliding plug 32 is slidably connected inside the sleeve 31. The sliding plug 32 divides the internal space of the sleeve 31 into a front cavity 31a near the seal 2 and a rear cavity 31b away from the seal 2. The front cavity 31a of the sleeve 31 communicates with the valve cavity of the valve body 1, facilitating the insertion of the piercing needle 33 into the valve cavity of the valve body 1 from the front cavity 31a, thereby piercing the seal 2. The tail end of the piercing needle 33 is welded to the end of the sliding plug 32 near the front cavity 31a. The piercing needle 33 is located in the front cavity 31a with its tip pointing towards the seal 2, allowing the piercing needle 33 to move with the sliding plug 32 to pierce the seal 2. Figure 5 As shown, the piercing needle 33 is a hollow tube. A vertical groove 331 is formed on the outer peripheral wall of the piercing needle 33. This groove reduces the resistance of the piercing needle 33 to the flow of the fire-fighting agent after the seal 2 is pierced, thereby improving the flow efficiency of the fire-fighting agent. In this embodiment, the groove 331 is an oblong groove. Wherein, as... Figure 2 As shown, a spring sleeved on the piercing needle 33 is fixedly connected to the side of the sliding plug 32 near the front cavity 31a, which is used to make the piercing component 3 automatically reset after piercing the seal 2, further reducing the impact of the piercing needle 33 on the flow of fire-fighting agents.

[0022] like Figure 3 As shown, the puncture component 3 also includes a sealing block 36 for sealing the rear cavity 31b. The inner wall of the sleeve 31 near the rear cavity 31b is threaded. The sealing block 36 near the sealing element 2 has a connector, and the outer peripheral wall of the connector is threaded to allow the sealing block 36 to be threadedly connected to the sleeve 31. The end of the sealing block 36 away from the sealing element 2 is located outside the sleeve 31, and the outer peripheral wall of this end is hexagonal, facilitating the installation and removal of the sealing block 36 within the sleeve 31.

[0023] like Figure 2 As shown, both the activation component 34 and the feedback component 35 are housed within the rear cavity 31b. The activation component 34 receives an electrical signal and drives the sliding plug 32 to move the puncture needle 33 towards the front cavity 31a. The feedback component 35 outputs a feedback signal to the fire alarm control panel based on the temperature change within the rear cavity 31b and / or the position change of the sliding plug 32 in the direction of sliding towards the front cavity 31a caused by the activation component 34. Figure 6As shown, the starting assembly 34 includes an electric spark head 341, a first terminal block 342, and a first wire 343. The first terminal block 342 is used to electrically connect to an external control circuit to receive a start signal. The first wire 343 is used to electrically connect the first terminal block 342 and the electric spark head 341 to conduct the start signal to the electric spark head 341. After being powered on, the electric spark head 341 ignites and explodes, generating high-temperature and high-pressure gas, which drives the sliding plug 32 to move along the axial direction of the sleeve 31 towards the front cavity 31a.

[0024] like Figure 5 As shown, a groove 321 is provided at the end of the sliding plug 32 away from the seal 2 to reduce the weight of the sliding plug 32. The electric spark head 341 is placed in the groove 321, so that the driving force generated when the electric spark head 341 ignites and generates high temperature and high pressure gas in the groove 321 is more concentrated, thereby improving the driving efficiency of the starting component 34.

[0025] The feedback component 35 includes a feedback element 351, a second terminal block 352, and a second wire 353. The feedback element 351 is used to detect the working status of the starting component 34 and send a feedback signal. The second wire 353 is electrically connected to the feedback element 351 and the second terminal block 352, thereby transmitting the feedback signal to the second terminal block 352. The second terminal block 352 is electrically connected to the fire control panel, thereby providing the feedback signal to the fire control panel for processing.

[0026] like Figure 7 In the illustrated embodiment, the feedback element 351 is specifically configured as a push-button switch 3511. Before the activation component 34 is activated, the push-button switch 3511 is pressed by the end of the sliding plug 32 near the rear cavity 31b via the pressing block 3512. When the activation component 34 receives an electrical signal to activate, the sliding plug 32 moves, thereby releasing the pressing block 3512. After the push-button switch 3511 is released, it sends a feedback signal. In this embodiment, the feedback signal directly corresponds to the action of the sliding plug 32. Therefore, in addition to monitoring whether the activation component 34 is activated, it can also monitor whether the sliding plug 32 and the puncture needle 33 are moving normally, and the mechanical structure is more stable.

[0027] like Figure 8In another embodiment shown, the feedback element 351 is specifically configured as a normally open temperature sensor 3513. The normally open temperature sensor 3513 is made of stainless steel encased in shape memory metal. Before the electric ignition head 341 of the starting assembly 34 is activated, the shape memory metal inside the normally open temperature sensor 3513 is in an open state. After the electric ignition head 341 is activated, the high temperature of the generated high-temperature, high-pressure gas causes the shape memory metal inside the normally open temperature sensor 3513 to conduct, and its electrical signal transmission changes from normally open to normally closed. This signal change is the feedback signal. The normally open temperature sensor 3513 conducts at high temperatures, and the transition from no signal to signal is obvious, making it easy for the fire alarm control panel to detect, and it has strong resistance to mechanical vibration interference.

[0028] like Figure 9 In another embodiment shown, the feedback element 351 is specifically configured as a normally closed temperature sensor 3514. The normally closed temperature sensor 3514 uses a ceramic-encapsulated shape memory metal material and structure. Before the electric ignition head 341 of the starting assembly 34 is activated, the shape memory metal within the normally closed temperature sensor 3514 is in a conductive state. After the electric ignition head 341 is activated, the high temperature of the generated high-temperature, high-pressure gas causes the shape memory metal within the normally closed temperature sensor 3514 to disconnect, and its electrical signal transmission changes from normally closed to normally open. This signal change is the feedback signal. The normally closed temperature sensor should initially have a signal. Therefore, this embodiment, based on the feedback of the puncture valve's working state, can be used to detect the integrity of the feedback loop during the power-on self-test of the energy storage fire protection system.

[0029] This utility model features a novel structure and stable operation. When in use, with the seal 2 intact, it isolates the flow channel within the valve body 1, sealing the fire extinguishing agent within a specific channel. When the battery module experiences thermal runaway or the fire suppression system detects a fire, the puncture valve receives a start signal. This signal is connected via the first terminal 342 and transmitted to the electric igniter 341 via the first wire 343. Upon instantaneous energization, the electric igniter 341 ignites and generates high-temperature, high-pressure gas in the rear cavity 31b. This gas drives the sliding plug 32, causing the puncture needle 33 to slide towards the front cavity 31a and puncture the seal 2. The fire extinguishing agent then rapidly flows out along the newly opened channel. The fire is extinguished by the valve targeting the burning battery module. Simultaneously, the feedback element 351 may be affected by the movement of the sliding plug 32. For example, pressing the switch 3511 releases the clamping force, changing the switch state and activating the feedback loop, sending a feedback signal to the fire control panel. Alternatively, it may be affected by the high temperature of high-temperature, high-pressure gas, such as the normally open temperature sensor 3513 and normally closed temperature sensor 3514, causing the internal shape memory metal and other temperature-sensing elements to deform and become conductive or disconnected. This abrupt signal change serves as a feedback signal, sent to the fire control panel. Upon receiving the feedback signal from the second terminal 352, the fire control panel can accurately display the puncture valve's operating status on the monitoring interface. Maintenance personnel can then monitor the puncture valve's operating status in real time.

[0030] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0031] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A puncture valve with signal feedback function, comprising a puncture component (3), the puncture component (3) comprising a sleeve (31) and a sliding plug (32) slidably disposed within the sleeve (31), the sliding plug (32) dividing the interior of the sleeve (31) into a front chamber (31a) and a rear chamber (31b), characterized in that: The piercing component also includes: The starting component (34) is housed in the rear cavity (31b) and is used to receive electrical signals and drive the sliding plug (32) to slide in the direction of the front cavity (31a); A feedback component (35), housed within the rear cavity (31b), is used to output a feedback signal based on the temperature change within the rear cavity (31b) triggered by the activation component (34) and / or the position change of the sliding plug (32) sliding towards the front cavity (31a). The feedback component (35) includes: Feedback element (351) is used to send a feedback signal based on the changes caused by the triggering component (34); The second terminal (352) is electrically connected to the fire alarm control panel; The second wire (353) is electrically connected to the second terminal (352) and the feedback element (351).

2. The puncture valve according to claim 1, characterized in that: The puncture valve also includes a valve body (1) and a seal (2), the seal (2) being fixed in the valve cavity of the valve body (1), and the puncture component (3) being mounted on the valve body (1).

3. The puncture valve according to claim 2, characterized in that: The puncture component (3) further includes a puncture needle (33) fixedly connected to the sliding plug (32). The puncture needle (33) is located in the front cavity (31a) and its tip points towards the seal (2). The puncture needle (33) is a hollow tube. The puncture needle (33) also includes a through groove (331) formed on the outer peripheral wall of the puncture needle (33).

4. The puncture valve according to claim 1, characterized in that: The startup component (34) includes: An electric spark head (341) is used to generate high-temperature and high-pressure gas after being energized to drive the sliding plug (32). The first terminal (342) is used to electrically connect to an external control circuit to receive a start signal; The first wire (343) is electrically connected to the first terminal (342) and the electric spark head (341) for transmitting the start signal.

5. The puncture valve according to claim 1, characterized in that: The feedback element (351) is configured as a push switch (3511). The push switch (3511) is pressed by the sliding plug (32) through the pressing block (3512). After the sliding plug (32) slides in the direction of the front cavity (31a) to release the pressing block (3512), it sends a feedback signal.

6. The puncture valve according to claim 4, characterized in that: The feedback element (351) is configured as a normally open temperature sensor (3513), which conducts and sends a feedback signal under high temperature.

7. The puncture valve according to claim 4, characterized in that: The feedback element (351) is configured as a normally closed temperature sensor (3514), which disconnects and sends a feedback signal under high temperature.

8. The puncture valve according to claim 4, characterized in that: The sliding plug (32) has a groove (321) at one end away from the seal (2), and the electric spark head (341) is placed in the groove (321).

9. The puncture valve according to claim 1, characterized in that: The puncturing component (3) also includes a sealing block (36) for sealing the rear cavity (31b). The inner wall of the sleeve (31) near the rear cavity (31b) is threaded, and one end of the sealing block (36) is formed with a connector that is threadedly connected to the sleeve (31).

10. The puncture valve according to claim 9, characterized in that: The sealing block (36) also includes a wire hole (361) opened on the sealing block (36), the wire hole (361) is sealed by sealant, and the outer peripheral wall of the end of the sealing block (36) located outside the sleeve (31) is hexagonal.

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