Ventilation air-conditioning system for battery test room

Abstract

The invention discloses a ventilation and air conditioning system for a battery test room. Comprising an anti-explosion wall, an anti-explosion ground, an anti-explosion suspended ceiling and an anti-explosion roof, the maintenance structure is divided into test rooms (A) and a secondary explosion venting area (B) by the anti-explosion suspended ceiling, and the multiple test rooms correspond to the same secondary explosion venting area. The test room (A) is defined by an anti-explosion wall, an anti-explosion ground and an anti-explosion suspended ceiling, the secondary explosion venting area (B) is defined by an anti-explosion wall, an anti-explosion suspended ceiling and an anti-explosion roof, and the test room (A) and the secondary explosion venting area (B) are both closed spaces. The invention provides a ventilation and air conditioning system for a battery test room. The temperature and humidity control requirement of the battery under the normal test condition is met, the use requirement under the special conditions of combustion, explosion and the like in the battery test process is met, the repeated utilization of the maintenance structure and the air-conditioning ventilation system is ensured, and the combustion and explosion exhaust meets the environment-friendly requirement.

Description

Technical Field

[0001] The present invention relates to the technical field related to battery testing, and in particular to a ventilation and air-conditioning system for a battery testing room. Background Art

[0002] With the booming development of the new energy market, batteries, as an important means of energy storage, are applicable to more and more scenarios, and battery safety is becoming more and more important. Before batteries are put on the market, they must undergo relatively rigorous performance tests and destructive tests to verify their safety under normal working conditions and special circumstances. These tests need to be carried out in a controllable environment, especially destructive tests, where batteries may burn and explode, so the controllability, rebuildability, and anti-destruction capabilities of the test environment are very important. Summary of the invention

[0003] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a ventilation and air-conditioning system for a battery testing room; it meets the temperature and humidity control requirements of the battery under normal testing conditions, and meets the use requirements in special circumstances such as combustion and explosion during battery testing, ensures the reuse of the maintenance structure and the air-conditioning and ventilation system, and ensures that the combustion and explosion exhaust meet environmental protection requirements.

[0004] The present invention is implemented by constructing a ventilation and air conditioning system for a battery test room, characterized in that it includes an explosion-proof wall (1), an explosion-proof floor (2), an explosion-proof ceiling (3) and an explosion-proof roof (4), wherein the explosion-proof ceiling (3) divides the maintenance structure into a test room (A) and a secondary explosion relief zone (B), and multiple test rooms correspond to the same secondary explosion relief zone. The test room (A) is enclosed by the explosion-proof wall (1), the explosion-proof floor (2) and the explosion-proof ceiling (3), and the secondary explosion relief zone (B) is enclosed by the explosion-proof wall (1), the explosion-proof ceiling (3) and the explosion-proof roof (4), and both the test room (A) and the secondary explosion relief zone (B) are closed spaces.

[0005] According to the present invention, a ventilation and air conditioning system for a battery test room is characterized in that: the test room (A) and the secondary explosion relief area (B) are respectively provided with explosion relief valves A (8) and explosion relief valves B (9) on the outer walls, and each test room is provided with explosion-proof valves A (5), explosion-proof valves B (6) and one-way explosion relief valves C (7) on the explosion-proof ceiling 3. Each test room is connected to the roof air supply equipment fresh air air conditioning box (Q1) and air supply fan A (Q3) through the explosion-proof valve A (5), the explosion-proof pipe well A (10) and the air duct. One end of the explosion-proof pipe well A (10) is connected to the explosion-proof ceiling (3) where the explosion-proof valve A (5) is provided, and the other end passes through the explosion-proof roof (4) to connect to the air duct. Each test room is connected to the roof exhaust equipment exhaust fan (Q2) and exhaust gas treatment device (Q5) through the explosion-proof valve B (6), the explosion-proof pipe well B (11) and the air duct. The explosion-proof pipe well B (11) is connected at one end to the explosion-proof ceiling (3) provided with the explosion-proof valve B (6), and the other end passes through the explosion-proof roof (4) to connect to the air duct; an explosion-proof pipe well C (14) and an explosion-proof pipe well D (15) are provided on the roof, and one end of the explosion-proof pipe well C (14) and the explosion-proof pipe well (15) are connected to the secondary explosion relief area through the explosion-proof valve C (12) and the explosion-proof valve D (13) on the roof, respectively, and the other end is connected to the air supply fan B (Q4) and the exhaust gas treatment device (Q5) through the air duct.

[0006] According to the present invention, a ventilation and air conditioning system for a battery test room is characterized in that a gas detection device is provided on the lower surface of the explosion-proof ceiling (3), and the gas detection device is connected to the automatic control system. The test room adopts a fresh air air conditioning system under normal working conditions. After being filtered and temperature-humidity adjusted by the fresh air conditioning box (Q1), the outdoor fresh air passes through the air duct and explosion-proof pipe shaft A (10) and is delivered to the test room by the explosion-proof valve A (5). The indoor air passes through the explosion-proof valve B (6), the explosion-proof pipe shaft B (11) and the air duct, and is discharged to the outside by the exhaust fan (Q2). The exhaust fan (Q2) is equipped with a heat recovery exhaust pipe. Under special conditions, the test room starts the emergency ventilation system. The outdoor fresh air is delivered to the test room by the supply fan A (Q3), the air duct and explosion-proof pipe shaft A (10), and the explosion-proof valve A (5). The air in the test room passes through the explosion-proof valve B (6), the explosion-proof pipe shaft B (11) and the air duct to the exhaust gas treatment device (Q5). The exhaust gas treatment device (Q5) purifies the air before discharge.

[0007] According to the present invention, a ventilation and air conditioning system for a battery test room is characterized in that: an independent ventilation system is arranged in the secondary explosion relief area, and the ventilation system includes air supply and exhaust. Outdoor fresh air is supplied by a blower B (Q4) through an air duct and an explosion-proof pipe well C (14), and the outdoor air is supplied to the secondary explosion relief area through an explosion-proof valve C (12); the air in the secondary explosion relief area is discharged to an exhaust gas treatment device (Q5) through an explosion-proof valve D (13) and an explosion-proof pipe well D (15), and is discharged after being purified by the exhaust gas treatment device (Q5).

[0008] According to the present invention, a ventilation and air conditioning system for a battery test room is characterized in that: the room can be divided into a test room and a secondary explosion relief zone in space, the test room is relatively small, and multiple test rooms correspond to the same secondary explosion relief zone; the test room is surrounded by explosion-proof walls, explosion-proof floors and explosion-proof ceilings, and the secondary explosion relief zone is surrounded by explosion-proof walls, explosion-proof ceilings and explosion-proof roofs, and the test room and the secondary explosion relief zone are both closed spaces; the test room and the secondary explosion relief zone are respectively provided with explosion relief valves on the outer walls, and a one-way explosion relief valve is also provided on the explosion-proof ceiling between each test room and the secondary explosion relief zone, and the explosion relief valve is usually in a closed state, and when the pressure of the environment rises and reaches a set value, it can be instantly opened to reduce the pressure of the environment and protect the maintenance structure of the environment. After the explosion relief valve is opened, it can be reset and reused; the one-way explosion relief valve between each test room and the secondary explosion relief zone can only be opened from the test room to the secondary explosion relief zone to prevent mutual interference between different test rooms.

[0009] The test room and the secondary explosion relief area are connected to the roof ventilation and air conditioning equipment through explosion-proof valves, explosion-proof pipe wells and air ducts; the explosion-proof valve is usually open, and when the ambient pressure reaches the preset value, it is instantly closed, and when the ambient pressure decreases, it returns to the open state. The explosion-proof valve can work repeatedly and will not be damaged. No air ducts are set in the test room and the secondary explosion relief area to avoid being damaged by explosion waves; The working status of the test room can be divided into three situations: normal test status, burning and smoking status, and explosion status; When the test room is in normal test state, it operates in the state of fresh air air conditioning system. In the state of fresh air air conditioning, the fresh air conditioning box and the exhaust fan (with heat recovery coil) are in working state. The outdoor fresh air is filtered and the temperature and humidity are adjusted by the fresh air conditioning box, and then passed through the air duct and explosion-proof pipe well, and sent to the test room by the explosion-proof valve. The air in the test room is discharged to the outside through the explosion-proof valve, the explosion-proof pipe well and the air duct by the exhaust fan (with heat recovery coil). An ethylene glycol heat recovery device (16) is set between the fresh air conditioning box and the exhaust fan (with heat recovery coil) to recover the energy of the room and save energy consumption; When the sensor in the test room detects smoke or sparks in the room, or the anti-explosion valve is closed due to an explosion, the automatic control system shuts down the fresh air conditioning state, that is, shuts down the fresh air conditioning box and the exhaust fan (with heat recovery coil), turns on the emergency ventilation system, and the air supply fan A (Q3) and the exhaust gas treatment system are in working state; the outdoor fresh air passes through the air supply fan A (Q3), the air duct and the anti-explosion pipe well, and is sent to the test room by the anti-explosion valve. The air in the test room passes through the anti-explosion valve, the anti-explosion pipe well and the air duct, and is purified by the exhaust gas treatment system before being discharged to the outside; Various tests of the battery are carried out in the test room. When the battery explodes in the test room, the pressure in the room rises instantly. When the pressure rises and exceeds the preset safety value 1, the explosion relief valve A on the outer wall of the test room opens to release the pressure, thereby reducing the impact on the explosion-proof walls, explosion-proof floors and explosion-proof ceilings of the room; if the pressure in the test room rises instantly to a higher preset safety value 2, the one-way pressure relief valve C on the explosion-proof ceiling also opens to release the pressure; if the pressure in the secondary explosion relief area exceeds the preset safety value 3, the explosion relief valve B on the outer wall of the secondary explosion relief area opens to release the pressure; the preset pressure relief safety values ​​1~3 are related to the strength of the explosion-proof structure of the test room. The set value is to protect the safety of the maintenance structure of the test room, and the safety value is set according to the specific situation.

[0010] According to the ventilation and air conditioning system for a battery test room described in the present invention, the characteristics are as follows: an independent ventilation system is arranged in the secondary explosion relief area to remove smoke and explosion dust etc. generated therein due to explosion relief; the ventilation system in the secondary explosion relief area is usually in a closed state, and a carbon monoxide concentration detector is arranged in the ceiling area, and when the concentration detector alarms, the ventilation system is turned on; the ventilation system includes air supply and exhaust, and outdoor fresh air is supplied by an air supply fan through an air duct and an explosion-proof pipe well, and the outdoor air is supplied to the secondary explosion relief area through an explosion-proof valve; the air in the secondary explosion relief area is discharged to the exhaust atmosphere after purification by an exhaust gas treatment device; Pneumatic switch valves (17) are provided on the equipment pipelines of all ventilation and air conditioning systems, and are linked with corresponding equipment to be opened or closed simultaneously.

[0011] The present invention has the following advantages: The present invention provides a ventilation and air-conditioning system for a battery testing room; it meets the temperature and humidity control requirements of the battery under normal testing conditions, and meets the use requirements under special circumstances such as combustion and explosion during the battery testing process, ensures the reuse of the maintenance structure and the air-conditioning and ventilation system, and ensures that the combustion and explosion exhaust meet environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of an implementation of the present invention.

[0013] Among them: 1 explosion-proof wall; 2 explosion-proof floor; 3 explosion-proof ceiling; 4 explosion-proof roof; 5 explosion-proof valve A; 6 explosion-proof valve B; 7 one-way explosion relief valve C; 8 explosion relief valve A; 9 explosion relief valve B; 10 explosion-proof pipe well A; 11 explosion-proof pipe well B; 12 explosion-proof valve C; 13 explosion-proof valve D; 14 explosion-proof pipe well C; 15 explosion-proof pipe well D; 16 ethylene glycol heat recovery device; 17 pneumatic switch valve; Q1 fresh air air conditioning unit; Q2 exhaust fan (with heat recovery coil); Q3 supply fan A; Q4 supply fan B; Q5 exhaust gas treatment device; A test room; B secondary explosion relief area. DETAILED DESCRIPTION

[0014] The following will be combined with the attached Figure 1 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] The present invention provides a maintenance structure and air conditioning ventilation system for a battery test room, such as Figure 1As shown, it can be implemented in the following manner; the maintenance structure includes explosion-proof wall 1, explosion-proof floor 2, explosion-proof ceiling 3 and explosion-proof roof 4, wherein the explosion-proof ceiling 3 divides the maintenance structure into a test room A and a secondary explosion relief area B, and multiple test rooms correspond to the same secondary explosion relief area. Test room A is enclosed by explosion-proof wall 1, explosion-proof floor 2 and explosion-proof ceiling 3, and secondary explosion relief area B is enclosed by explosion-proof wall 1, explosion-proof ceiling 3 and explosion-proof roof 4. Test room A and secondary explosion relief area B are both closed spaces. Test room A and secondary explosion relief area B are respectively provided with explosion relief valve A8 and explosion relief valve B9 on the outer walls, and each test room is provided with explosion relief valve A5, explosion relief valve B6 and one-way explosion relief valve C7 on the explosion-proof ceiling 3. Each test room is connected to the roof's air supply equipment, fresh air conditioning box Q1, and air supply fan AQ3 through explosion-proof valve A5, explosion-proof pipe well A10, and air duct. One end of explosion-proof pipe well A10 is connected to the explosion-proof ceiling 3 where explosion-proof valve A5 is installed, and the other end passes through the explosion-proof roof 4 to connect to the air duct. Each test room is connected to the roof's exhaust equipment, exhaust fan Q2, and exhaust gas treatment device Q5 through explosion-proof valve B6, explosion-proof pipe well B11, and air duct. One end of explosion-proof pipe well B11 is connected to the explosion-proof ceiling 3 where explosion-proof valve B6 is installed, and the other end passes through the explosion-proof roof 4 to connect to the air duct. Explosion-proof pipe well C14 and explosion-proof pipe well D15 are installed on the roof. One end of explosion-proof pipe well C14 and explosion-proof pipe well 15 are connected to the secondary explosion relief area through explosion-proof valve C12 and explosion-proof valve D13 on the roof, and the other end is connected to air supply fan BQ4 and exhaust gas treatment device Q5 through air duct. A gas detection device is provided on the lower surface of the explosion-proof ceiling 3, and the gas detection device is connected to the automatic control system. The test room adopts a fresh air air conditioning system under normal working conditions. After being filtered and temperature and humidity adjusted by the fresh air conditioning box Q1, the outdoor fresh air passes through the air duct and the explosion-proof pipe well A10, and is sent to the test room by the explosion-proof valve A5. The indoor air passes through the explosion-proof valve B6, the explosion-proof pipe well B11 and the air duct, and is discharged to the outside by the exhaust fan Q2, wherein the exhaust fan Q2 is equipped with a heat recovery exhaust pipe. The emergency ventilation system is started in the special state of the test room. The outdoor fresh air is sent to the test room by the air supply fan AQ3, the air duct and the explosion-proof pipe well A10, and the explosion-proof valve A5. The air in the test room passes through the explosion-proof valve B6, the explosion-proof pipe well B11 and the air duct to the exhaust gas treatment device Q5, and is purified by the exhaust gas treatment device Q5 and discharged. An independent ventilation system is set up in the secondary explosion relief area. This ventilation system includes air supply and exhaust. Outdoor fresh air is supplied by the air supply fan BQ4 through the air duct and the explosion-proof pipe shaft C14, and the outdoor air is sent to the secondary explosion relief area through the explosion-proof valve C12; the air in the secondary explosion relief area is discharged to the exhaust gas treatment device Q5 through the explosion-proof valve D13 and the explosion-proof pipe shaft D15, and is discharged after being purified by the exhaust gas treatment device Q5.

[0016] The following is a detailed description of its operation with reference to the accompanying drawings: This system can be divided into a test room and a secondary explosion relief area in terms of space. The test room is relatively small, and multiple test rooms correspond to the same secondary explosion relief area. The test room is enclosed by explosion-proof walls, explosion-proof floors and explosion-proof ceilings, and the secondary explosion relief area is enclosed by explosion-proof walls, explosion-proof ceilings and explosion-proof roofs. Both the test room and the secondary explosion relief area are closed spaces. The test room and the secondary explosion relief area are respectively provided with explosion relief valves on the outer walls, and a one-way explosion relief valve is also provided on the explosion-proof ceiling between each test room and the secondary explosion relief area. The explosion relief valve is usually closed. When the pressure of the environment rises and reaches the set value, it can be opened instantly to reduce the pressure of the environment and protect the maintenance structure of the environment. After the explosion relief valve is opened, it can be reset and reused. The one-way explosion relief valve between each test room and the secondary explosion relief area can only be opened from the test room to the secondary explosion relief area to prevent mutual interference between different test rooms.

[0017] The test room and the secondary explosion relief area are connected to the roof ventilation and air conditioning equipment through explosion-proof valves, explosion-proof pipe wells and air ducts. The explosion-proof valve is usually open. When the ambient pressure reaches the preset value, it is instantly closed. When the ambient pressure decreases, it returns to the open state. The explosion-proof valve can work repeatedly and will not be damaged. No air ducts are set in the test room and the secondary explosion relief area to avoid being damaged by the explosion wave.

[0018] The working conditions of the test room can be divided into three situations: normal test state, burning and smoking state, and explosion state.

[0019] When the test room is in normal test state, it runs in the state of fresh air air conditioning system. In the state of fresh air air conditioning, the fresh air conditioning box and the exhaust fan (with heat recovery coil) are in working state. After the outdoor fresh air is filtered and the temperature and humidity are adjusted by the fresh air conditioning box, it passes through the air duct and the explosion-proof pipe well and is sent to the test room by the explosion-proof valve. The air in the test room is discharged to the outside through the explosion-proof valve, the explosion-proof pipe well and the air duct by the exhaust fan (with heat recovery coil). An ethylene glycol heat recovery device 16 is set between the fresh air conditioning box and the exhaust fan (with heat recovery coil) to recover the energy of the room and save energy consumption.

[0020] When the sensor in the test room detects smoke or sparks in the room, or the explosion-proof valve is closed due to an explosion, the automatic control system turns off the fresh air conditioning state, that is, turns off the fresh air conditioning box and the exhaust fan (with heat recovery coil), turns on the emergency ventilation system, and the air supply fan AQ3 and the exhaust gas treatment system are in working condition. The outdoor fresh air passes through the air supply fan AQ3, the air duct and the explosion-proof pipe well, and is sent to the test room by the explosion-proof valve. The air in the test room passes through the explosion-proof valve, the explosion-proof pipe well and the air duct, and is purified by the exhaust gas treatment system before being discharged to the outside.

[0021] The various tests of the battery are carried out in the test room. When the battery explodes in the test room, the pressure in the room rises instantly. When the pressure rises and exceeds the preset safety value 1, the explosion relief valve A on the outer wall of the test room opens to release the pressure, thereby reducing the impact on the explosion-proof walls, explosion-proof floors and explosion-proof ceilings of the room; if the pressure in the test room rises instantly to a higher preset safety value 2, the one-way pressure relief valve C on the explosion-proof ceiling also opens to release the pressure; if the pressure in the secondary explosion relief area exceeds the preset safety value 3, the explosion relief valve B on the outer wall of the secondary explosion relief area opens to release the pressure. The preset pressure relief safety values ​​1 to 3 are related to the strength of the explosion-proof structure of the test room. The set value is to protect the safety of the maintenance structure of the test room, and the safety value is set according to the specific situation.

[0022] An independent ventilation system is set up in the secondary explosion relief area to remove smoke and explosion dust generated by explosion relief. The ventilation system in the secondary explosion relief area is usually closed. A carbon monoxide concentration detector is set in the ceiling area. When the concentration detector alarms, the ventilation system is turned on. This ventilation system includes air supply and exhaust. The outdoor fresh air is sent from the air supply fan through the air duct and the explosion-proof pipe well to the secondary explosion relief area through the explosion-proof valve; the air in the secondary explosion relief area is discharged to the exhaust atmosphere through the explosion-proof valve and the explosion-proof pipe well after purification by the exhaust gas treatment device.

[0023] Pneumatic switch valves 17 are provided on the equipment pipelines of all ventilation and air-conditioning systems, and are linked with corresponding equipment to be opened or closed at the same time.

[0024] The specific configuration of the exhaust gas treatment system is determined based on the environmental impact assessment.

[0025] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ventilation and air conditioning system for a battery testing room, characterized in that; It comprises an explosion-proof wall (1), an explosion-proof floor (2), an explosion-proof ceiling (3) and an explosion-proof roof (4), wherein the explosion-proof ceiling (3) divides the maintenance structure into a test room (A) and a secondary explosion relief area (B), and multiple test rooms correspond to the same secondary explosion relief area; The test room (A) is enclosed by explosion-proof walls (1), explosion-proof floors (2) and explosion-proof ceilings (3), and the secondary explosion relief area (B) is enclosed by explosion-proof walls (1), explosion-proof ceilings (3) and explosion-proof roofs (4). Both the test room (A) and the secondary explosion relief area (B) are closed spaces.

2. A ventilation and air conditioning system for a battery testing room according to claim 1, characterized in that; The test room (A) and the secondary explosion relief area (B) are provided with explosion relief valves A (8) and explosion relief valves B (9) on the outer walls respectively. The explosion-proof ceiling 3 of each test room is provided with explosion-proof valves A (5), explosion-proof valves B (6) and one-way explosion relief valves C (7); each test room is connected to the roof air supply equipment fresh air air conditioning box (Q1) and air supply fan A (Q3) through the explosion-proof valve A (5), the explosion-proof pipe well A (10) and the air duct. One end of the explosion-proof pipe well A (10) is connected to the explosion-proof ceiling (3) where the explosion-proof valve A (5) is provided, and the other end passes through the explosion-proof roof (4) to connect to the air duct; each test room is connected to the explosion-proof ceiling (3) where the explosion-proof valve A (5) is provided. 6), the explosion-proof pipe well B (11) and the air duct are connected to the exhaust fan (Q2) and the exhaust gas treatment device (Q5) of the roof exhaust equipment. One end of the explosion-proof pipe well B (11) is connected to the explosion-proof ceiling (3) where the explosion-proof valve B (6) is installed, and the other end passes through the explosion-proof roof (4) to connect to the air duct; the roof is provided with an explosion-proof pipe well C (14) and an explosion-proof pipe well D (15). One end of the explosion-proof pipe well C (14) and the explosion-proof pipe well (15) are connected to the secondary explosion relief area through the explosion-proof valve C (12) and the explosion-proof valve D (13) on the roof, respectively, and the other end is connected to the blower B (Q4) and the exhaust gas treatment device (Q5) through the air duct.

3. A ventilation and air conditioning system for a battery testing room according to claim 1, characterized in that; A gas detection device is provided on the lower surface of the explosion-proof ceiling (3), and the gas detection device is connected to the automatic control system. Under normal working conditions, the test room adopts a fresh air air conditioning system. After being filtered and temperature-humidity-adjusted by the fresh air air conditioning box (Q1), the outdoor fresh air passes through the air duct and the explosion-proof pipe well A (10) and is delivered to the test room by the explosion-proof valve A (5). The indoor air passes through the explosion-proof valve B (6), the explosion-proof pipe well B (11) and the air duct, and is discharged to the outside by the exhaust fan (Q2), wherein the exhaust fan (Q2) is provided with a heat recovery exhaust pipe. Under special conditions, the test room starts the emergency ventilation system. The outdoor fresh air passes through the air supply fan A (Q3), the air duct and the explosion-proof pipe well A (10), and is delivered to the test room by the explosion-proof valve A (5). The air in the test room passes through the explosion-proof valve B (6), the explosion-proof pipe well B (11) and the air duct to the exhaust gas treatment device (Q5), and is purified by the exhaust gas treatment device (Q5) before being discharged.

4. A ventilation and air conditioning system for a battery testing room according to claim 1, characterized in that An independent ventilation system is set up in the secondary explosion relief area. The ventilation system includes air supply and exhaust. Outdoor fresh air is supplied by the air supply fan B (Q4) through the air duct and the explosion-proof pipe shaft C (14), and the outdoor air is delivered to the secondary explosion relief area through the explosion-proof valve C (12); the air in the secondary explosion relief area is discharged to the exhaust gas treatment device (Q5) through the explosion-proof valve D (13) and the explosion-proof pipe shaft D (15), and is discharged after being purified by the exhaust gas treatment device (Q5).

5. A ventilation and air conditioning system for a battery testing room according to claim 1, characterized in that; It can be divided into a test room and a secondary explosion relief zone in terms of space. The test room is relatively small in area, and multiple test rooms correspond to the same secondary explosion relief zone. The test room is enclosed by explosion-proof walls, explosion-proof floors and explosion-proof ceilings, and the secondary explosion relief zone is enclosed by explosion-proof walls, explosion-proof ceilings and explosion-proof roofs. Both the test room and the secondary explosion relief zone are closed spaces. The test room and the secondary explosion relief zone are respectively provided with explosion relief valves on the outer walls, and a one-way explosion relief valve is also provided on the explosion-proof ceiling between each test room and the secondary explosion relief zone. The explosion relief valve is usually in a closed state. When the pressure of the environment rises and reaches the set value, it can be opened instantly to reduce the pressure of the environment and protect the maintenance structure of the environment. After the explosion relief valve is opened, it can be reset and reused. The one-way explosion relief valve between each test room and the secondary explosion relief zone can only be opened from the test room to the secondary explosion relief zone to prevent mutual interference between different test rooms. The test room and secondary explosion relief area are connected to the roof ventilation and air conditioning equipment through explosion-proof valves, explosion-proof pipe wells and air ducts; the explosion-proof valve is usually open, and when the ambient pressure reaches the preset value, it is instantly closed, and when the ambient pressure decreases, it returns to the open state; The explosion-proof valve can work repeatedly without being damaged. No air duct is set in the test room and the secondary explosion-relief area to avoid being damaged by the explosion wave. The working status of the test room can be divided into three situations: normal test status, burning and smoking status, and explosion status; When the test room is in normal test state, it runs in the state of fresh air air conditioning system; In the fresh air conditioning state, the fresh air conditioning box and the exhaust fan (with heat recovery coil) are in working state. After being filtered and temperature and humidity adjusted by the fresh air conditioning box, the outdoor fresh air passes through the air duct and explosion-proof pipe well, and is sent to the test room by the explosion-proof valve. The air in the test room passes through the explosion-proof pipe well and air duct, and is discharged to the outside by the exhaust fan (with heat recovery coil); An ethylene glycol heat recovery device (16) is provided between the fresh air air conditioning box and the exhaust fan (with a heat recovery coil) to recover room energy and save energy consumption; When the sensor in the test room detects smoke or sparks in the room, or the anti-explosion valve is closed due to an explosion, the automatic control system shuts down the fresh air conditioning state, that is, shuts down the fresh air conditioning box and the exhaust fan (with heat recovery coil), turns on the emergency ventilation system, and the air supply fan A (Q3) and the exhaust gas treatment system are in working state; the outdoor fresh air passes through the air supply fan A (Q3), the air duct and the anti-explosion pipe well, and is sent to the test room by the anti-explosion valve. The air in the test room passes through the anti-explosion valve, the anti-explosion pipe well and the air duct, and is purified by the exhaust gas treatment system before being discharged to the outside; Various tests of the battery are carried out in the test room. When the battery explodes in the test room, the pressure in the room rises instantly. When the pressure rises and exceeds the preset safety value 1, the explosion relief valve A on the outer wall of the test room opens to release the pressure, thereby reducing the impact on the explosion-proof walls, explosion-proof floors and explosion-proof ceilings of the room; if the pressure in the test room rises instantly to a higher preset safety value 2, the one-way pressure relief valve C on the explosion-proof ceiling also opens to release the pressure; if the pressure in the secondary explosion relief area exceeds the preset safety value 3, the explosion relief valve B on the outer wall of the secondary explosion relief area opens to release the pressure; the preset pressure relief safety values ​​1~3 are related to the strength of the explosion-proof structure of the test room. The set value is to protect the safety of the maintenance structure of the test room, and the safety value is set according to the specific situation.

6. A ventilation and air conditioning system for a battery testing room according to claim 1, characterized in that ; An independent ventilation system is set up in the secondary explosion relief area to remove smoke and explosion dust generated by explosion relief; the ventilation system in the secondary explosion relief area is usually closed, and a carbon monoxide concentration detector is set in the ceiling area. When the concentration detector alarms, the ventilation system is turned on; this ventilation system includes air supply and exhaust. The outdoor fresh air is sent from the air supply fan through the air duct and the explosion-proof pipe well to the secondary explosion relief area through the explosion-proof valve; the air in the secondary explosion relief area is discharged to the exhaust atmosphere after purification by the exhaust gas treatment device; Pneumatic switch valves (17) are provided on the equipment pipelines of all ventilation and air conditioning systems, and are linked with corresponding equipment to be opened or closed simultaneously.

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