Ventilation air-conditioning system for battery test room

Abstract

The utility model 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 (1), 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 utility model provides a ventilation 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 utility model relates to the technical field of battery test related, concretely relates to a kind of ventilation air conditioning system for battery test room. BACKGROUND

[0002] With the vigorous development of new energy market, battery as an important energy storage means, more and more applicable scenarios, the safety of battery is more and more important. Battery before listing needs to carry out more stringent various performance tests and destructive tests, to verify its safety under normal working condition and special situation. These tests need to be carried out in a controllable environment, especially destructive test, battery will appear combustion and explosion etc., the controllable, reconstructable, anti-destroying ability of test environment is very important. CONTENT OF UTILITY MODEL

[0003] Therefore, in order to solve the above insufficient, the utility model provides a kind of ventilation air conditioning system for battery test room here;Satisfy the temperature and humidity control requirement of battery under normal test condition, and satisfy the use requirement under the special situation such as combustion and explosion etc. in battery test process, guarantee the reuse of maintenance structure and air conditioning ventilation system, guarantee that combustion and explosion exhaust meet the requirement of environmental protection.

[0004] The utility model is realized, construct a kind of ventilation air conditioning system for battery test room, its characterized in that;Including anti-explosion wall (1), anti-explosion ground (2), anti-explosion ceiling (3) and anti-explosion roof (4), wherein anti-explosion ceiling (3) divides maintenance structure into test room (A) and secondary explosion venting area (B), and multiple test rooms correspond to same secondary explosion venting area.Test room (A) is enclosed by anti-explosion wall (1), anti-explosion ground (2) and anti-explosion ceiling (3), and secondary explosion venting area (B) is enclosed by anti-explosion wall (1), anti-explosion ceiling (3) and anti-explosion roof (4), and test room (A) and secondary explosion venting area (B) are both closed space.

[0005] According to the present invention, a ventilation and air conditioning system for a battery testing room is characterized in that: the testing room (A) and the secondary explosion relief zone (B) are respectively equipped with explosion relief valve A (8) and explosion relief valve B (9) on the outer wall; each testing room is equipped with explosion-proof valve A (5), explosion-proof valve B (6) and one-way explosion relief valve C (7) on the explosion-proof ceiling 3. Each testing room is connected to the roof's air supply equipment, fresh air conditioning unit (Q1) and blower A (Q3), through explosion-proof valve A (5), explosion-proof pipe well A (10) and air duct. One end of explosion-proof pipe well A (10) is connected to the explosion-proof ceiling (3) where explosion-proof valve A (5) is installed, and the other end passes through the explosion-proof roof (4) and connects to the air duct; each testing room is connected to the roof's exhaust equipment, exhaust fan (Q2) and waste gas treatment device (Q5), through explosion-proof valve B (6), explosion-proof pipe well B (11) and air duct. 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) and connects to the air duct; explosion-proof pipe well C (14) and explosion-proof pipe well D (15) are provided on the roof. One end of explosion-proof pipe well C (14) and explosion-proof pipe well D (15) are respectively connected to the secondary explosion relief zone through the explosion-proof valve C (12) and explosion-proof valve D (13) on the roof, and the other end is respectively connected to the blower 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 testing 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. Under normal operating conditions, the test room uses a fresh air conditioning system. After being filtered and conditioned by the fresh air conditioning unit (Q1), the outdoor fresh air passes through the duct and explosion-proof manhole 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 manhole B (11) and the duct, and is discharged to the outside by the exhaust fan (Q2). The exhaust fan (Q2) is equipped with a heat recovery pipe. Under special conditions, the test room activates the emergency ventilation system. The outdoor fresh air passes through the duct and the explosion-proof manhole A (10) and is delivered to the test room by the supply fan A (Q3) and the explosion-proof valve A (5). The air in the test room passes through the explosion-proof valve B (6), the explosion-proof manhole B (11) and the duct to the waste gas treatment device (Q5), and is discharged after being purified by the waste gas treatment device (Q5).

[0007] According to the present invention, a ventilation and air conditioning system for a battery testing room is characterized in that: an independent ventilation system is set up in the secondary explosion relief area, which 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 well C (14), and 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 waste gas treatment device (Q5) through the explosion-proof valve D (13) and the explosion-proof pipe well D (15), and is discharged after being purified by the waste gas treatment device (Q5).

[0008] According to the present invention, a ventilation and air conditioning system for a battery testing room is characterized in that: the space can be divided into a testing room and a secondary explosion-proof zone; the testing room is relatively small, and multiple testing rooms correspond to the same secondary explosion-proof zone; the testing room is enclosed by explosion-proof walls, explosion-proof flooring, and explosion-proof ceilings, while the secondary explosion-proof zone is enclosed by explosion-proof walls, explosion-proof ceilings, and explosion-proof roofs; both the testing room and the secondary explosion-proof zone are enclosed spaces; explosion-proof valves are installed on the exterior walls of both the testing room and the secondary explosion-proof zone, and a one-way explosion-proof valve is also installed on the explosion-proof ceiling between each testing room and the secondary explosion-proof zone. These valves are normally closed, but open instantaneously when the ambient pressure rises to a set value, reducing the ambient pressure and protecting the surrounding structure. After opening, the explosion-proof valves can be reset and reused; the one-way explosion-proof valves between each testing room and the secondary explosion-proof zone can only open from the testing room to the secondary explosion-proof zone, preventing interference between different testing rooms.

[0009] The test room and secondary explosion relief zone are connected to the roof ventilation and air conditioning equipment via explosion-proof valves, explosion-proof pipe shafts, and air ducts. The explosion-proof valves are normally open; when the ambient pressure reaches a preset value, they close momentarily and reopen when the ambient pressure decreases. The explosion-proof valves are reusable and undamaged. No air ducts are installed in the test room and secondary explosion relief zone to avoid damage from the blast wave.

[0010] The working status of the test room can be divided into three situations: normal test status, combustion and smoke generation status, and explosion status.

[0011] When the test room is in normal test condition, it operates under a 100% fresh air conditioning system. Under 100% fresh air conditioning condition, the fresh air conditioning unit and the exhaust fan (with heat recovery coil) are in working condition. After being filtered and temperature and humidity regulated by the fresh air conditioning unit, the outdoor fresh air is delivered to the test room through the air duct and explosion-proof pipe shaft 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 shaft and the air duct by the exhaust fan (with heat recovery coil). An ethylene glycol heat recovery device (16) is installed between the fresh air conditioning unit and the exhaust fan (with heat recovery coil) to recover room energy and save energy consumption.

[0012] When the sensors in the test room detect smoke or sparks, or when the explosion-proof valve closes due to an explosion, the automatic control system shuts down the fresh air conditioning system, i.e., shuts down the fresh air conditioning unit and exhaust fan (with heat recovery coil), and activates the emergency ventilation system. The supply fan A (Q3) and the exhaust gas treatment system are in operation. Outdoor fresh air is delivered to the test room through the supply fan A (Q3), through the duct and explosion-proof pipe shaft, and through the explosion-proof valve. The air in the test room is discharged outdoors after being purified by the exhaust gas treatment system after passing through the explosion-proof valve, the explosion-proof pipe shaft and the duct.

[0013] All battery tests are conducted in the test room. When a battery explodes in the test room, the room pressure rises instantly. When the pressure rises above the preset safety value 1, the explosion relief valve A on the outer wall of the test room opens to release pressure, thereby reducing the impact on the explosion-proof walls, explosion-proof floor, and explosion-proof ceiling 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 pressure. If the pressure in the secondary explosion relief zone exceeds the preset safety value 3, the explosion relief valve B on the outer wall of the secondary explosion relief zone opens to release 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 values ​​are to protect the safety of the test room's maintenance structure, and the safety values ​​are set according to specific circumstances.

[0014] According to the present invention, a ventilation and air conditioning system for a battery testing room is characterized in that: a separate ventilation system is set up in the secondary explosion relief zone to remove smoke and explosion dust generated during the explosion; the ventilation system in the secondary explosion relief zone is normally closed, and a carbon monoxide concentration detector is installed in the ceiling area. When the concentration detector alarms, the ventilation system is activated; this ventilation system includes air supply and exhaust. Outdoor fresh air is supplied by a fan through ducts and explosion-proof manholes, and outdoor air is delivered to the secondary explosion relief zone through an explosion-proof valve; the air in the secondary explosion relief zone is discharged to the exhaust gas treatment device for purification before being exhausted into the atmosphere via the explosion-proof valve and explosion-proof manholes;

[0015] All ventilation and air conditioning system equipment pipelines are equipped with pneumatic switch valves (17), which are linked with the corresponding equipment to open or close simultaneously.

[0016] This utility model has the following advantages: This utility model provides a ventilation and air conditioning system for a battery testing room; it meets the temperature and humidity control requirements of batteries under normal testing conditions, and meets the usage requirements under special circumstances such as combustion and explosion during battery testing, ensuring the reusability of the maintenance structure and air conditioning ventilation system, and ensuring that combustion and explosion exhaust meet environmental protection requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating an embodiment of the present invention.

[0018] The components include: 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 manhole A; 11. Explosion-proof manhole B; 12. Explosion-proof valve C; 13. Explosion-proof valve D; 14. Explosion-proof manhole C; 15. Explosion-proof manhole D; 16. Ethylene glycol heat recovery device; 17. Pneumatic switch valve; Q1. Fresh air conditioning unit; Q2. Exhaust fan (with heat recovery coil); Q3. Supply fan A; Q4. Supply fan B; Q5. Waste gas treatment device; A. Test room; B. Secondary explosion relief area. Detailed Implementation

[0019] The following will be combined with the appendix Figure 1 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0020] This utility model provides a maintenance structure and air conditioning ventilation system for a battery testing room, such as Figure 1As shown, it can be implemented as follows; the maintenance structure includes an blast-resistant wall 1, an blast-resistant floor 2, an blast-resistant ceiling 3, and an blast-resistant roof 4. The blast-resistant ceiling 3 divides the maintenance structure into test room A and secondary explosion relief zone B, with multiple test rooms corresponding to the same secondary explosion relief zone. Test room A is enclosed by the blast-resistant wall 1, the blast-resistant floor 2, and the blast-resistant ceiling 3, while secondary explosion relief zone B is enclosed by the blast-resistant wall 1, the blast-resistant ceiling 3, and the blast-resistant roof 4. Both test room A and secondary explosion relief zone B are enclosed spaces. Explosion relief valves A8 and B9 are respectively installed on the exterior walls of test room A and secondary explosion relief zone B. Each test room's blast-resistant ceiling 3 is equipped with blast-resistant valve A5, blast-resistant valve B6, and one-way explosion relief valve C7. Each test room is connected to the roof's air supply equipment (fresh air conditioning unit Q1 and air supply fan AQ3) via explosion-proof valve A5, explosion-proof pipe shaft A10, and ductwork. One end of explosion-proof pipe shaft 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 and connects to the ductwork. Each test room is connected to the roof's exhaust equipment (exhaust fan Q2 and waste gas treatment device Q5) via explosion-proof valve B6, explosion-proof pipe shaft B11, and ductwork. One end of explosion-proof pipe shaft 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 and connects to the ductwork. Explosion-proof pipe shafts C14 and D15 are installed on the roof. One end of explosion-proof pipe shafts C14 and D15 are connected to the secondary explosion relief zone via explosion-proof valves C12 and D13 on the roof, respectively, and the other end is connected to air supply fan BQ4 and waste gas treatment device Q5 via ductwork, respectively. A gas detection device is installed on the lower surface of the explosion-proof ceiling (3), and the gas detection device is connected to the automatic control system. Under normal operating conditions, the test room uses a 100% fresh air conditioning system. Outdoor fresh air is filtered and its temperature and humidity are regulated by the fresh air conditioning unit Q1, then passes through ducts and the explosion-proof manhole A10, and is delivered to the test room via the explosion-proof valve A5. Indoor air exits through the explosion-proof valve B6, through the explosion-proof manhole B11 and ducts, and is exhausted to the outside by the exhaust fan Q2, which is equipped with a heat recovery duct. In special circumstances, the emergency ventilation system is activated. Outdoor fresh air is delivered to the test room by the supply fan AQ3, through ducts and the explosion-proof manhole A10, and via the explosion-proof valve A5. Indoor air exits through the explosion-proof valve B6, through the explosion-proof manhole B11 and ducts, and is exhausted to the exhaust gas treatment device Q5, where it is purified before being discharged. The secondary explosion relief zone is equipped with an independent ventilation system, which includes air supply and exhaust. Outdoor fresh air is supplied by the air supply fan BQ4 through the air duct and explosion-proof pipe shaft C14, and outdoor air is delivered to the secondary explosion relief zone through the explosion-proof valve C12. The air in the secondary explosion relief zone is discharged to the waste 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 waste gas treatment device Q5.

[0021] Its operation will be explained in detail below with reference to the accompanying diagram:

[0022] This system is spatially divided into test rooms and secondary explosion relief zones. The test rooms are relatively small, with multiple test rooms corresponding to the same secondary explosion relief zone. The test rooms are enclosed by blast-resistant walls, blast-resistant floors, and blast-resistant ceilings, while the secondary explosion relief zone is enclosed by blast-resistant walls, blast-resistant ceilings, and blast-resistant roofs. Both test rooms and secondary explosion relief zones are enclosed spaces. Explosion relief valves are installed on the exterior walls of both the test rooms and the secondary explosion relief zone. A one-way explosion relief valve is also installed on the blast-resistant ceiling between each test room and the secondary explosion relief zone. These valves are normally closed but open instantaneously when the ambient pressure rises to a set value, reducing the pressure and protecting the surrounding structures. After opening, the valves can be reset and reused. Each one-way explosion relief valve between a test room and the secondary explosion relief zone can only open from the test room to the secondary explosion relief zone, preventing interference between different test rooms.

[0023] The test room and secondary explosion relief zone are connected to the roof ventilation and air conditioning equipment via explosion-proof valves, explosion-proof pipe shafts, and air ducts. The explosion-proof valves are normally open; when the ambient pressure reaches a preset value, they momentarily close and reopen when the pressure decreases. The explosion-proof valves are reusable and undamaged. No air ducts are installed in the test room and secondary explosion relief zone to avoid damage from the blast wave.

[0024] The working status of the test room can be divided into three situations: normal test status, combustion and smoke generation status, and explosion status.

[0025] During normal testing, the test room operates under a 100% fresh air conditioning system. In this system, the fresh air conditioning unit and exhaust fan (with heat recovery coil) are operational. Outdoor fresh air, after being filtered and temperature / humidity regulated by the fresh air conditioning unit, is delivered to the test room via ductwork and explosion-proof shafts, and then through an explosion-proof valve. Air from the test room is exhausted outdoors via the explosion-proof valve, explosion-proof shafts, and ductwork, and then by the exhaust fan (with heat recovery coil). An ethylene glycol heat recovery device 16 is installed between the fresh air conditioning unit and the exhaust fan (with heat recovery coil) to recover energy from the room, saving energy consumption.

[0026] When sensors in the test room detect smoke or sparks, or when an explosion causes the explosion-proof valve to close, the automatic control system shuts down the 100% fresh air conditioning system, i.e., shuts down the fresh air conditioning unit and exhaust fan (with heat recovery coil), and activates the emergency ventilation system. The supply fan AQ3 and the exhaust gas treatment system are then operational. Outdoor fresh air is delivered to the test room via the supply fan AQ3, through ductwork and the explosion-proof shaft, and through the explosion-proof valve. Air from the test room passes through the explosion-proof valve, the explosion-proof shaft, and ductwork, is purified by the exhaust gas treatment system, and then discharged outdoors.

[0027] All battery tests are conducted in the test chamber. When a battery explodes in the test chamber, the room pressure rises instantly. If the pressure rises above the preset safety value 1, the explosion relief valve A on the outer wall of the test chamber opens to release pressure, thereby reducing the impact on the explosion-proof walls, explosion-proof floor, and explosion-proof ceiling of the room. If the pressure in the test chamber rises instantaneously to a higher preset safety value 2, the one-way pressure relief valve C on the explosion-proof ceiling also opens to release pressure. If the pressure in the secondary explosion relief zone exceeds the preset safety value 3, the explosion relief valve B on the outer wall of the secondary explosion relief zone opens to release pressure. The preset pressure relief safety values ​​1 to 3 are related to the strength of the explosion-proof structure of the test chamber. These values ​​are set to protect the safety of the test chamber's maintenance structure, and their safety values ​​are set according to specific circumstances.

[0028] The secondary explosion venting zone is equipped with an independent ventilation system to remove smoke and explosion dust generated during the explosion. This system is normally closed, but a carbon monoxide detector is installed in the ceiling area. When the detector alarms, the ventilation system is activated. This system includes supply and exhaust air. Outdoor fresh air is supplied by a fan through ducts and explosion-proof shafts, and then delivered to the secondary explosion venting zone via explosion-proof valves. Air from the secondary explosion venting zone is then discharged through explosion-proof valves and explosion-proof shafts to a waste gas treatment device for purification before being exhausted into the atmosphere.

[0029] All ventilation and air conditioning system equipment pipelines are equipped with pneumatic switch valves 17, which are linked to the corresponding equipment to open or close simultaneously.

[0030] The specific configuration of the waste gas treatment system is determined based on the environmental impact assessment.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those 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 is not to be limited to the embodiments shown herein, but is to be accorded 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 includes blast-resistant walls (1), blast-resistant floors (2), blast-resistant ceilings (3) and blast-resistant roofs (4). The blast-resistant ceilings (3) divide the maintenance structure into test rooms (A) and secondary explosion relief zones (B). Multiple test rooms correspond to the same secondary explosion relief zone. Test rooms (A) are enclosed by blast-resistant walls (1), blast-resistant floors (2) and blast-resistant ceilings (3). Secondary explosion relief zones (B) are enclosed by blast-resistant walls (1), blast-resistant ceilings (3) and blast-resistant roofs (4). Both test rooms (A) and secondary explosion relief zones (B) are enclosed spaces.

2. The ventilation and air conditioning system for a battery testing room according to claim 1, characterized in that; Test room (A) and secondary explosion relief zone (B) are equipped with explosion relief valves A (8) and B (9) on their exterior walls, respectively. Each test room has explosion-proof valve A (5), explosion-proof valve B (6), and one-way explosion relief valve C (7) on its explosion-proof ceiling (3). Each test room is connected to the roof's air supply equipment, fresh air conditioning unit (Q1) and air supply fan A (Q3), via explosion-proof valve A (5), explosion-proof pipe shaft A (10), and air duct. One end of explosion-proof pipe shaft A (10) is connected to the explosion-proof ceiling (3) where explosion-proof valve A (5) is installed, and the other end passes through the explosion-proof roof (4) and connects to the air duct. Each test room is connected to the roof's air supply equipment, fresh air conditioning unit (Q1) and air supply fan A (Q3), via explosion-proof valve B (8) and B (9). 6) The explosion-proof pipe well B (11) and the air duct are connected to the exhaust fan (Q2) and the waste gas treatment device (Q5) on the roof. 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) and connects to the air duct. The roof is equipped with explosion-proof pipe well C (14) and explosion-proof pipe well D (15). One end of explosion-proof pipe well C (14) and explosion-proof pipe well D (15) are respectively connected to the secondary explosion relief zone through the explosion-proof valve C (12) and explosion-proof valve D (13) on the roof, and the other end is connected to the blower B (Q4) and the waste gas treatment device (Q5) through the air duct.

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

4. The ventilation and air conditioning system for a battery testing room according to claim 1, characterized in that... The secondary explosion relief area is equipped with an independent ventilation system, which includes air supply and exhaust. Outdoor fresh air is supplied by the air supply fan B (Q4) through the air duct and explosion-proof pipe well C (14), and 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 waste gas treatment device (Q5) through the explosion-proof valve D (13) and explosion-proof pipe well D (15), and discharged after being purified by the waste gas treatment device (Q5).

5. The ventilation and air conditioning system for a battery testing room according to claim 1, characterized in that; Multiple test rooms correspond to the same secondary explosion relief zone; the test rooms are enclosed by blast-resistant walls, blast-resistant floors, and blast-resistant ceilings, while the secondary explosion relief zone is enclosed by blast-resistant walls, blast-resistant ceilings, and blast-resistant roofs. Both the test rooms and the secondary explosion relief zone are enclosed spaces; explosion relief valves are installed on the exterior walls of both the test rooms and the secondary explosion relief zone, and one-way explosion relief valves are also installed on the blast-resistant ceilings between each test room and the secondary explosion relief zone. 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 shafts and air ducts; an ethylene glycol heat recovery device (16) is installed between the fresh air air conditioning unit and the exhaust fan to recover room energy and save energy consumption.

6. A ventilation and air conditioning system for a battery testing room according to claim 1, characterized in that... The secondary explosion venting zone is equipped with an independent ventilation system to remove smoke and explosion dust generated during the explosion. This system is normally closed, but a carbon monoxide detector is installed in the ceiling area. When the detector alarms, the ventilation system is activated. This system includes supply and exhaust air. Outdoor fresh air is supplied by a fan through ducts and explosion-proof shafts, and then delivered to the secondary explosion venting zone via explosion-proof valves. Air from the secondary explosion venting zone is then discharged through explosion-proof valves and explosion-proof shafts to a waste gas treatment device for purification before being exhausted into the atmosphere. All ventilation and air conditioning system equipment pipelines are equipped with pneumatic switch valves (17), which are linked with the corresponding equipment to open or close simultaneously.

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