CN220646891U

CN220646891U - Full-automatic pressure relief explosion-proof valve

Info

Publication number: CN220646891U
Application number: CN202321748890.5U
Authority: CN
Inventors: 张立; 王振宇
Original assignee: Ningbo Konojia New Materials Co ltd
Current assignee: Ningbo Konojia New Materials Co ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2024-03-22
Anticipated expiration: 2033-07-05

Abstract

The utility model relates to a full-automatic pressure relief explosion-proof valve, which comprises a dome upper cover and a pressure relief seat, wherein the dome upper cover is arranged above the pressure relief seat, a through hole is arranged in the middle of the pressure relief seat, a vent hole is arranged around the through hole, an electromagnetic lock is arranged below the pressure relief seat, the upper end of the electromagnetic lock penetrates through the through hole and is connected with the dome upper cover, an inductor for detecting the air pressure inside the explosion-proof valve is arranged on the electromagnetic lock, a fan is arranged below the electromagnetic lock, when the inductor senses that the air pressure inside the valve is overlarge, the electromagnetic lock starts to push out the dome upper cover to be separated from the pressure relief seat for venting, the fan can accelerate venting and can discharge smoke, after venting is completed, the inductor releases signals, the electromagnetic lock is recovered, and the dome upper cover is closed with the pressure relief seat.

Description

Full-automatic pressure relief explosion-proof valve

Technical Field

The utility model relates to a pressure relief explosion-proof valve, in particular to a full-automatic pressure relief explosion-proof valve.

Background

Along with the rapid increase of the loading quantity of the energy storage container in China, the fire burning accident of the energy storage container frequently happens, and serious safety threat is caused to people and the environment. Therefore, a series of mandatory national standards are recently issued by related departments, wherein the electric safety and functional safety requirements of energy storage products are mainly specified in the novel energy storage standard system construction guide, and the waterproof, insulating resistance and monitoring requirements of the products are enhanced so as to reduce the safety risks of the energy storage container under the conditions of normal use, wading and the like; aiming at the release and implementation of the mandatory national standard, the method has higher requirements on the water resistance, ventilation and the like of the energy storage product. The safe and reliable operation of core components such as a battery PACK, an electric control system and the like in the energy storage container system is important. In order to ensure safe and stable operation, the battery needs to be waterproof and dustproof, namely, in theory, a sealing state is needed, but in the sealing state, once the battery core of the battery is short-circuited and a thermal runaway event occurs, a large amount of gas can be generated, so that the pressure of the gas in the box body is rapidly increased, and if the gas cannot be timely exhausted and decompressed, severe fire and explosion can be caused, and serious casualties and property loss are caused.

The utility model discloses a novel guide pressure relief balance valve, which comprises a body, a waterproof and breathable film arranged on the body and an upper cover arranged above the waterproof and breathable film in a covering manner; the body has the exhaust hole that link up terminal surface from top to bottom, and waterproof ventilated membrane covers exhaust hole upper end opening, the upper cover has the exhaust groove of many through up and down terminal surfaces, and this body lower extreme is equipped with the guide pipe, and the exhaust hole of the through-hole intercommunication body of guide pipe to form guide pressure release passageway. The utility model integrates the advantages of water resistance, ventilation, thermal runaway pressure relief and direction setting of the pressure relief channel, can guide the thermal runaway high-temperature gas to be discharged to a safe direction, and can solve the problems that the installation mode of the existing ventilation valve is inflexible and the direction or position of the exhaust pressure relief channel cannot be specified; meanwhile, the risk that the high-temperature gas discharged by the existing explosion-proof valve is easy to ignite other objects of the vehicle when the explosion-proof valve is in thermal runaway is solved; the utility model has simple structure, less parts, convenient mass production and controllable cost of products.

In the prior art, the pressure relief explosion-proof valve is lifted by air pressure to push the circular top cover of the pressure relief explosion-proof valve, the compression spring is used for exhausting, and when the air pressure is lowered, the pressure relief explosion-proof valve is closed; when cavity atmospheric pressure risees fast, and incessantly increase pressure, the explosion-proof valve of pressure release opens the back, and exhaust space is limited, can't reach the purpose of quick pressure release to increase the risk of cavity pressure too big fire. The exhaust time overlength and atmospheric pressure are too big, and the spring can ageing decay, can not reach sealed effect, exists the steam condensation, and the inside possibility of infiltration increases the cavity internal components and parts ageing, reduces product life cycle to behind the internal smoke condition that produces of valve, the valve is closed promptly after inside and outside atmospheric pressure equals, can't fully discharge smog etc. easily takes place the short circuit and fires.

Disclosure of Invention

In order to solve the problems, the utility model provides the full-automatic pressure relief explosion-proof valve, which can ensure that the air pressure in the pressure relief explosion-proof valve is not too high, the air discharge and pressure relief time is short, and the forced negative pressure air discharge can be carried out.

In order to achieve the above purpose, the full-automatic pressure relief explosion-proof valve comprises a dome upper cover and a pressure relief seat, and is characterized in that the dome upper cover is arranged above the pressure relief seat, a through hole is arranged in the middle of the pressure relief seat, air leakage holes are formed in the periphery of the through hole, an electromagnetic lock is arranged below the pressure relief seat, the upper end of the electromagnetic lock penetrates through the through hole to be connected with the dome upper cover, an inductor of an inductor for detecting the air pressure inside the pressure relief explosion-proof valve is arranged on the side face of the electromagnetic lock, when the inductor senses that the air pressure inside the valve is overlarge, the electromagnetic lock starts to push out the dome upper cover to be separated from the pressure relief seat for air leakage, after the air leakage is completed, the inductor releases signals, the electromagnetic lock is recovered, and the dome upper cover is closed with the pressure relief seat.

Preferably, a fan is arranged below the electromagnetic lock, the fan can accelerate the air leakage process of the pressure relief explosion-proof valve, and particularly after smoke is generated by overheating in the valve, the fan can perform forced air exhaust under the condition of lower air pressure in the valve.

Preferably, the electromagnetic lock comprises an electromagnetic lock body and a lifting column, a limiting plate is arranged at the lower end of the lifting column, and a first pressure spring is arranged between the electromagnetic lock body and the limiting plate.

Preferably, a mounting frame is arranged between the through hole and the air leakage hole, a limiting hole is formed in the mounting frame, a limiting bolt penetrating through the limiting hole and connected with the dome upper cover is arranged on the limiting hole, and a second pressure spring with the upper end being in butt joint with the lower side of the mounting frame is arranged outside the limiting bolt. The compression amount of the first pressure spring is the same as that of the second pressure spring, the compression amount of the spring is used as the opening stroke of the dome top cover, the opening stroke of the pressure relief explosion-proof valve is limited, and the dome top cover can be brought back to the closed position through the restoring force of the spring after the air leakage is completed.

Preferably, gasket mounting grooves are formed in the upper side and the lower side of the pressure relief seat, and gaskets are arranged in the gasket mounting grooves. The gasket can improve the integral sealing effect of the pressure relief explosion-proof valve, plays a certain buffering role in returning of the dome upper cover, and reduces friction loss between the dome upper cover and the pressure relief seat.

Preferably, the gasket mounting groove is internally provided with equidistant positioning holes, the positioning holes are provided with fan positioning hexagonal bolts, and the fan is connected with the pressure relief seat through the fan positioning hexagonal bolts. The fan positioning hexagon bolts enable the fan to be installed at a specified position and matched with the pressure relief seat.

Preferably, the electromagnetic lock is provided with electromagnetic lock brackets on two sides, the electromagnetic lock brackets are connected with the electromagnetic lock and the pressure relief seat through screws, a cushion block mounting plate is arranged on the electromagnetic lock brackets, and a cushion block is arranged on the cushion block mounting plate. The electromagnetic lock is fixed through the electromagnetic lock bracket, and the cushion block is used for supporting the electromagnetic lock bracket.

Preferably, the two sides of the pressure relief seat are provided with outwards protruding lugs, and the lugs are provided with pressure relief explosion-proof valve mounting holes. The lug enables the pressure relief explosion-proof valve to be adaptive to the installation environment, and the influence of the connecting component on the pressure relief part is reduced.

Preferably, the sensor is a smoke sensor capable of sensing pressure. The electromagnetic lock can be started in an induction way once the smoke is generated by overheating in the pressure relief explosion-proof valve, so that the air leakage movement is performed.

According to the full-automatic pressure relief explosion-proof valve designed by the utility model, the electromagnetic lock and the sensor are added, when the internal air pressure of the pressure relief explosion-proof valve reaches a limit value, the pressure relief explosion-proof valve can be started, the dome upper cover is ejected to release air, so that the internal air pressure of the valve cannot be in an excessive value, a fan is adopted in the air release process, the air release process is accelerated, the non-sealing time of the pressure relief explosion-proof valve is shortened, and the influence of the outside on the internal environment of the valve is reduced. The pressure extreme value in the pressure relief explosion-proof valve is reduced, the air leakage is accelerated, the air leakage movement is carried out without depending on the internal and external air pressure, the air exhaust movement can be forced and fully carried out through the fan, the safety and the reliability of the pressure relief explosion-proof valve are improved, the working time of the components in the valve under severe environment is reduced, and the whole service life is prolonged.

Drawings

FIG. 1 is an exploded view of a fully automatic pressure relief explosion valve of the present utility model;

FIG. 2 is a cross-sectional view of the fully automatic pressure relief explosion valve of the present utility model;

FIG. 3 is a schematic diagram of the full automatic pressure relief explosion valve of the present utility model in a closed state;

FIG. 4 is a schematic diagram of the fully automatic pressure relief explosion valve of the present utility model in an open state;

wherein: the pressure release seat 2, the through hole 21, the air release hole 22, the mounting bracket 23, the limit hole 24, the limit bolt 25, the gasket mounting groove 26, the positioning hole 261, the lug 27, the pressure release explosion-proof valve mounting hole 271, the electromagnetic lock 3, the electromagnetic lock body 31, the lifting column 32, the limit plate 33, the electromagnetic lock bracket 34, the cushion block mounting plate 35, the sensor 4, the fan 5, the first pressure spring 6, the second pressure spring 7, the gasket 8, the fan positioning hexagonal bolt 9 and the cushion block 10.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1

As shown in fig. 1, the full-automatic pressure relief explosion-proof valve described in this embodiment includes a dome upper cover 1 and a pressure relief seat 2, and is characterized in that, pressure relief seat 2 top is equipped with dome upper cover 1, be equipped with through-hole 21 in the middle of the pressure relief seat 2, be equipped with vent hole 22 around through-hole 21, pressure relief seat 2 below is equipped with electromagnetic lock 3, electromagnetic lock 3 upper end runs through-hole 21 and links to each other with dome upper cover 1, electromagnetic lock 3 side is equipped with the inductor 4 that detects explosion-proof valve inboard atmospheric pressure, when inductor 4 senses the valve internal atmospheric pressure too big, electromagnetic lock 3 starts ejecting dome upper cover 1 and makes it separate with pressure relief seat 2 and let out the gas, and after the gas let out is accomplished, inductor 4 release signal, electromagnetic lock 3 is retrieved, dome upper cover 1 and pressure relief seat 2 are closed.

Example 2

According to the full-automatic pressure relief explosion-proof valve, on the basis of the embodiment 1, a fan is arranged below the electromagnetic lock, the fan can accelerate the air leakage process of the pressure relief explosion-proof valve, and particularly after smoke is generated by overheating in the valve, the fan can perform forced air exhaust under the condition of low air pressure in the valve; the gasket mounting groove 26 is internally provided with positioning holes 261 which are distributed at equal intervals, the positioning holes 261 are provided with fan positioning hexagonal bolts 9, and the fan 5 is connected with the pressure relief seat 2 through the fan positioning hexagonal bolts 9. The fan positioning hexagonal bolt 9 enables the fan 5 to be installed at a specified position and matched with the pressure relief seat 2.

Example 3

The electromagnetic lock 3 comprises an electromagnetic lock body 31 and a lifting column 32, a limiting plate 33 is arranged at the lower end of the lifting column 32, a first pressure spring 6 is arranged between the electromagnetic lock body 31 and the limiting plate 33, a mounting frame 23 is arranged between the through hole 21 and the air leakage hole 22, a limiting hole 24 is arranged on the mounting frame 23, a limiting bolt 25 penetrating through the limiting hole 24 and connected with the dome upper cover 1 is arranged on the limiting hole 24, and a second pressure spring 7 with the upper end being in butt joint with the lower side of the mounting frame is arranged outside the limiting bolt 25. The compression amount of the first pressure spring 6 is the same as that of the second pressure spring 7, the compression amount of the spring is used as the opening stroke of the dome cover 1, the opening stroke of the pressure relief explosion-proof valve is limited, and the dome cover 1 can be brought back to the closed position through the restoring force of the spring after the air leakage is completed; meanwhile, gasket mounting grooves 26 are formed in the upper side and the lower side of the pressure relief seat 2, and gaskets 8 are arranged in the gasket mounting grooves 26. The gasket 8 can improve the integral sealing effect of the pressure relief explosion-proof valve, plays a certain buffering role in returning the dome upper cover 1, and reduces friction loss between the dome upper cover 1 and the pressure relief seat 2; the electromagnetic lock comprises an electromagnetic lock body, wherein electromagnetic lock supports 34 are arranged on two sides of the electromagnetic lock body 3, the electromagnetic lock supports 34 are connected with the electromagnetic lock body 3 and the pressure relief seat 2 through screws, cushion block mounting plates 35 are arranged on the electromagnetic lock supports 34, and cushion blocks 10 are arranged on the cushion block mounting plates 35. The electromagnetic lock 3 is fixed through the electromagnetic lock bracket 34, and the cushion block 10 is used for supporting the electromagnetic lock bracket 34; and the two sides of the pressure relief seat 2 are respectively provided with a lug 27 protruding outwards, and the lug 27 is provided with a pressure relief explosion-proof valve mounting hole 271. The lugs 27 allow the pressure relief explosion proof valve to be adapted to the installation environment and reduce the impact of the connection components on the pressure relief portion.

Example 4

When the energy storage container is inside because the heat is too high, when producing smog, inductor 4 senses the back, and electromagnetic lock 3 starts ejecting dome lid 1 and discharges to fan 5 starts to discharge smog, and when the inside and outside atmospheric pressure of valve is the same, the explosion-proof valve of pressure release is in open state anyway, carries out negative pressure by fan 5 and forces the discharge smog, until after smog is fully discharged, inductor 4 responds to and makes electromagnetic lock 3 retrieve, dome upper cover 1 is closed, thereby makes the inside safe operating condition that is in of valve.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a full-automatic pressure release explosion-proof valve, includes dome upper cover (1) and pressure release seat (2), its characterized in that, pressure release seat (2) top sets up dome upper cover (1), be equipped with through-hole (21) in the middle of pressure release seat (2), through-hole (21) are equipped with venting hole (22) all around, pressure release seat (2) below is equipped with electromagnetic lock (3), electromagnetic lock (3) upper end runs through-hole (21) and links to each other with dome upper cover (1), be equipped with on electromagnetic lock (3) and detect explosion-proof valve inboard atmospheric inductor (4), when inductor (4) sense the valve in atmospheric pressure too big, electromagnetic lock (3) start ejecting dome upper cover (1) make it release with pressure release seat (2) separation, after the release is accomplished, electromagnetic lock (3) are retrieved, dome upper cover (1) and pressure release seat (2) are closed.

2. The full-automatic pressure relief explosion-proof valve according to claim 1, wherein a fan (5) is arranged below the electromagnetic lock (3).

3. The full-automatic pressure relief explosion-proof valve according to claim 1, wherein the electromagnetic lock (3) is composed of an electromagnetic lock body (31) and a lifting column (32), a limiting plate (33) is arranged at the lower end of the lifting column (32), and a first pressure spring (6) is arranged between the electromagnetic lock body (31) and the limiting plate (33).

4. The full-automatic pressure relief explosion-proof valve according to claim 1, characterized in that a mounting frame (23) is arranged between the through hole (21) and the air leakage hole (22), a limiting hole (24) is arranged on the mounting frame (23), a limiting bolt (25) penetrating through the limiting hole (24) and connected with the dome upper cover (1) is arranged on the limiting hole (24), and a second pressure spring (7) with the upper end being abutted to the lower side of the mounting frame (23) is arranged outside the limiting bolt (25).

5. The full-automatic pressure relief explosion-proof valve according to claim 1, wherein the upper side and the lower side of the pressure relief seat (2) are respectively provided with a gasket mounting groove (26), and a gasket (8) is arranged in each gasket mounting groove (26).

6. The full-automatic pressure relief explosion-proof valve according to claim 5, wherein the gasket mounting groove (26) is provided with equidistant positioning holes (261), the positioning holes (261) are provided with fan positioning hexagonal bolts (9), and the fan (5) is connected with the pressure relief seat (2) through the fan positioning hexagonal bolts (9).

7. The full-automatic pressure relief explosion-proof valve according to claim 1, wherein electromagnetic lock brackets (34) are arranged on two sides of the electromagnetic lock (3), the electromagnetic lock brackets (34) are connected with the electromagnetic lock (3) and the pressure relief seat (2) through screws, a cushion block mounting plate (35) is arranged on the electromagnetic lock brackets (34), and a cushion block (10) is arranged on the cushion block mounting plate (35).

8. The full-automatic pressure relief explosion-proof valve according to claim 1, wherein the two sides of the pressure relief seat (2) are provided with outwards protruding lugs (27), and the lugs (27) are provided with pressure relief explosion-proof valve mounting holes (271).

9. The fully automatic pressure relief and explosion protection valve according to any one of claims 1 to 8, wherein the sensor (4) is a smoke sensor capable of sensing pressure.