CN212756898U - Automatic fire-fighting system with high-low temperature box - Google Patents
Automatic fire-fighting system with high-low temperature box Download PDFInfo
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- CN212756898U CN212756898U CN202020615017.9U CN202020615017U CN212756898U CN 212756898 U CN212756898 U CN 212756898U CN 202020615017 U CN202020615017 U CN 202020615017U CN 212756898 U CN212756898 U CN 212756898U
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Abstract
The utility model discloses an automatic fire extinguishing system of high low temperature box, including CO2 spray set, water spray set, first temperature sensor, second temperature sensor, smoke detection device, drainage device, alarm device and controlling means, controlling means includes the treater to and the relay group of being connected with the treater electricity, the relay group is connected with CO2 spray set, water spray set and drainage device electricity respectively, the treater still is connected with alarm device, first temperature sensor, second temperature sensor, smoke transducer and updraft ventilator electricity respectively. The utility model discloses when can providing high low temperature environment for the power battery, can also provide warning and emergency treatment measure to the hot incident that probably appears in the test process.
Description
Technical Field
The utility model belongs to the technical field of battery system is experimental, concretely relates to high low temperature cabinet automatic fire extinguishing system.
Background
At present, a pure electric vehicle is developed rapidly, the energy density of a battery is higher and higher, and if a thermal runaway phenomenon occurs in a power battery, the generated damage is larger (the combustion is more severe and the diffusion speed is higher); therefore, safety protection is necessary during battery test; at present, most of host machine factories perform battery tests only in a thermostat, only provide an environmental temperature for batteries, and cannot ensure the safety of test equipment and personnel after the thermal runaway of the batteries and possible secondary disasters.
The simple structure of thermostated container, temperature sensor or smoke transducer have only been arranged to the under-deck, and do not have explosion-proof equipment, only can send the warning when high low-temperature box operation appears unusually, do not have the emergency measure behind other occurence of failure, and the battery package is if the thermal runaway is on fire fast, and the temperature is high, consequently in case the occurence of failure and handle and in time probably take place the secondary disaster extremely, causes equipment damage, personnel's burn, brings the loss that can not estimate for the company.
Most of high-low temperature boxes for power batteries of pure electric vehicles on the market are of front and back integrated structures, the front part is a working chamber, the back part is a mechanical chamber and a control cabinet, and the inner wall of each box body is made of SUS304 stainless steel plates; the interior is only provided with a temperature sensor 1, a smoke sensor 2 and an acousto-optic alarm tri-color lamp 3 (see fig. 1); the smoke sensor 2 is used for monitoring the smoke concentration (CO, CH 4) in the high-low temperature box; the temperature sensor 1 is used for monitoring the temperature in the high-temperature and low-temperature box; the three-color light 3 is a sound-light alarm device and only gives an alarm when the internal fault of the high-low temperature box (such as overheating, oil shortage and equal shortage of a compressor) or the temperature of the high-low temperature box is too high or the smoke concentration exceeds the standard. Because the temperature sensor can not monitor the temperature of the battery in real time, once the temperature in the battery pack rises rapidly to cause smoke to give an alarm, thermal runaway already occurs in the battery pack, equipment is possibly burnt and the periphery is ignited under the condition of no emergency treatment measures, and extremely high potential safety hazards exist.
Therefore, there is a need to develop an automatic fire-fighting system for high-low temperature boxes.
Disclosure of Invention
The utility model aims at providing a high low temperature box automatic fire control fire extinguishing systems can provide high low temperature environment for the power battery when, can also provide warning and emergency treatment measure to the hot incident that probably appears in the test process.
High low temperature case automatic fire extinguishing system, include:
CO2 spray device comprising CO2Gas cylinder, through pipeline with CO2First nozzle connected to gas cylinder, and for controlling CO2The first electromagnetic valve is switched on and off by the spraying device, and the first spray head is arranged at the top of the high-low temperature box;
the water spraying device comprises a second spray head, a pipeline for connecting the second spray head and a water source, and a second electromagnetic valve for controlling the on and off of the water spraying device;
a first temperature sensor provided in the high-low temperature chamber for detecting a temperature in the high-low temperature chamber;
a second temperature sensor provided on the battery pack for detecting a temperature of the battery pack;
the smoke detection device comprises a ventilation pipeline arranged in the high-low temperature box, a smoke sensor arranged in the ventilation pipeline and an air draft device, wherein the air draft device sucks the internal air of the high-low temperature box into the ventilation pipeline in real time and detects the smoke concentration in the high-low temperature box in real time through the smoke sensor;
the drainage device comprises a drainage pipe and a third electromagnetic valve arranged on the drainage pipe;
the alarm device is arranged outside the high-low temperature box;
the control device comprises a processor and a relay group electrically connected with the processor, the relay group is electrically connected with the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve respectively, and the processor is also electrically connected with the alarm device, the first temperature sensor, the second temperature sensor, the smoke sensor and the air draft device respectively; the processor controls the CO2 spray device, the water discharge device and the alarm device to work based on the data collected by the first temperature sensor, the second temperature sensor and the smoke sensor.
Furthermore, a sealing cabin door is arranged inside the high and low temperature box gate.
Furthermore, the water source adopts cooling circulating water of a high-low temperature tank.
The utility model has the advantages of it is following: the device can provide high and low temperature environment for the power battery, can also provide alarm and emergency treatment measures for thermal safety accidents possibly occurring in the test process, and has high reliability and strong practicability.
Drawings
FIG. 1 is a schematic diagram of a background art configuration;
fig. 2 is a schematic structural diagram of the present invention;
fig. 3 is a schematic diagram of a control circuit of the present invention;
in the figure, 1-temperature sensor, 2-smoke sensor, 3-acousto-optic alarm three-color lamp, 4-first nozzle and 5-CO2The automatic control system comprises a gas cylinder, 6-a third electromagnetic valve, 7-a sealed cabin door, 8-a second spray head, 9-a second temperature sensor, 10-an air draft device, 11-a second electromagnetic valve, 12-a first electromagnetic valve, 13-a gear button, 14-a processor and 15-a relay set.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figures 2 and 3, the automatic fire-fighting fire-extinguishing system for the high-low temperature box comprises a CO2 spraying device, a water spraying device, a first temperature sensor (not shown in the figure), a second temperature sensor 9 and smokeFog detection device, drainage device, alarm device and controlling means. The CO2 spray device comprises a CO2 gas cylinder 5, a first spray head 4 connected with the CO2 gas cylinder 5 through a pipeline, and a controller used for controlling CO2The first electromagnetic valve 12 for switching on and off the spraying device, and the first spray head 4 is arranged at the top of the high-low temperature box. The water spraying apparatus includes a second nozzle 8, a pipe for connecting the second nozzle 8 and a water source, and a second solenoid valve 11 for controlling the water spraying apparatus to be turned on and off. The first temperature sensor is arranged in the high-low temperature box and used for detecting the temperature in the high-low temperature box. The second temperature sensor 9 is disposed on the battery pack and is used for detecting the temperature of the battery pack. The smoke detection device comprises a ventilation pipeline arranged in the high-low temperature box, a smoke sensor 2 arranged in the ventilation pipeline and an air draft device 10, wherein the air draft device 10 sucks the inside air of the high-low temperature box into the ventilation pipeline in real time and detects the smoke concentration in the high-low temperature box in real time through the smoke sensor 2. The drain device comprises a drain pipe and a third electromagnetic valve 6 arranged on the drain pipe. The alarm device is arranged outside the high-low temperature box. The control device comprises a processor 14 and a relay group 15 electrically connected with the processor 14, the relay group 15 is respectively and electrically connected with a first electromagnetic valve 12, a second electromagnetic valve 11 and a third electromagnetic valve 6, and the processor 14 is also respectively and electrically connected with an alarm device, a first temperature sensor, a second temperature sensor 9, a smoke sensor 2 and an air draft device 10; the processor 14 controls the operation of the CO2 spray device, the water discharge device and the alarm device based on the data collected by the first temperature sensor, the second temperature sensor 9 and the smoke sensor 2.
In this embodiment, the water source is cooling circulating water of a high-low temperature tank.
Referring to fig. 3, which is an electrical control schematic diagram of the present embodiment, the control part uses a single external fire protection power as a power supply to prevent the fire protection system from stopping working due to the power failure of the equipment, so as to control the on and off of the CO2 sprinkler and the water sprinkler. Wherein, two CO2 spray devices are provided; the processor 14 comprises an ECU1 and an ECU2, wherein the connectors from J1 to J7 are used for connecting various sensors, display screens and the like. The relay group 15 comprises a first relay, a second relay, a third relay and a fourth relay, the first relay, the second relay, the third relay and the fourth relay are respectively electrically connected with the processor 14, the first relay is electrically connected with one of the first electromagnetic valves 12, the second relay is electrically connected with the other first electromagnetic valve 12, the third relay is electrically connected with the second electromagnetic valve 11, and the fourth relay is electrically connected with the electric third electromagnetic valve 6. The gear button 13 is used for switching between manual control and automatic control, and when the manual control is switched, the water spraying device or the CO2 spraying device can be controlled according to subjective needs; when the automatic control is switched to, the CO2 spray device, the water discharge device and the alarm device are automatically controlled to work according to the data collected by the first temperature sensor, the second temperature sensor 9 and the smoke sensor 2.
In this embodiment, the CO2 spray device is used for extinguishing an open fire in time when the open fire is detected in the high-low temperature box, and the CO2 spray device can be manually opened according to actual needs. The water spraying device is used for automatically starting the water spraying device to cool and extinguish the battery pack when the second temperature sensor 9 detects that the temperature of the battery pack exceeds a limit value or the smoke sensor 2 detects that the smoke concentration rises to 1min after the alarm device gives out a warning. The water spraying device can be manually opened according to actual requirements. And stopping spraying when the temperature of the battery pack is lower than the protection value or the smoke concentration in the high-low temperature box is lower than the protection value.
In the embodiment, a sealing cabin door 7 is arranged inside the high and low temperature box gate. The sealing cabin door 7 forms a sealing wall before the cabin door of the high-low temperature box is closed, and aims to accumulate spray water in the high-low temperature box until a battery is submerged in the continuous water spraying process; the third electromagnetic valve 6 of the drainage device is in an open state at ordinary times, is automatically closed after receiving a fire-fighting signal, and is opened after the fire-fighting action is finished, so that the waste water in the high-low temperature tank is drained through the floor drain.
Claims (3)
1. The utility model provides a high low temperature box automatic fire control fire extinguishing systems which characterized in that includes:
CO2the spraying device comprises a CO2 gas cylinder (5), a first spray head (4) connected with the CO2 gas cylinder (5) through a pipeline, and a controller used for controlling CO2The first electromagnetic valve (12) of the spraying device is opened and closed, and the first spray head (4) is arranged at the top of the high-low temperature box;
a water spray device comprising a second spray head (8), a pipe for connecting the second spray head (8) and a water source, and a second solenoid valve (11) for controlling the water spray device to be turned on and off;
a first temperature sensor provided in the high-low temperature chamber for detecting a temperature in the high-low temperature chamber;
a second temperature sensor (9) provided on the battery pack for detecting the temperature of the battery pack;
the smoke detection device comprises a ventilation pipeline arranged in the high-low temperature box, a smoke sensor (2) arranged in the ventilation pipeline and an air draft device (10), wherein the air draft device (10) sucks the internal air of the high-low temperature box into the ventilation pipeline in real time and detects the smoke concentration in the high-low temperature box in real time through the smoke sensor (2);
the drainage device comprises a drainage pipe and a third electromagnetic valve (6) arranged on the drainage pipe;
the alarm device is arranged outside the high-low temperature box;
the control device comprises a processor (14) and a relay group (15) electrically connected with the processor (14), the relay group (15) is electrically connected with the first electromagnetic valve (12), the second electromagnetic valve (11) and the third electromagnetic valve (6) respectively, and the processor (14) is also electrically connected with the alarm device, the first temperature sensor, the second temperature sensor (9), the smoke sensor (2) and the air draft device (10) respectively; the processor (14) controls the operation of the CO2 spray device, the water discharge device and the alarm device based on the data collected by the first temperature sensor, the second temperature sensor (9) and the smoke sensor (2).
2. The automatic fire-fighting system for high-low temperature boxes according to claim 1, characterized in that: and a sealing cabin door (7) is arranged inside the high-low temperature box gate.
3. The automatic fire-fighting fire extinguishing system for high and low temperature boxes according to claim 1 or 2, characterized in that: the water source adopts the cooling circulating water of a high-low temperature box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020615017.9U CN212756898U (en) | 2020-04-22 | 2020-04-22 | Automatic fire-fighting system with high-low temperature box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020615017.9U CN212756898U (en) | 2020-04-22 | 2020-04-22 | Automatic fire-fighting system with high-low temperature box |
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| CN212756898U true CN212756898U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020615017.9U Active CN212756898U (en) | 2020-04-22 | 2020-04-22 | Automatic fire-fighting system with high-low temperature box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341259A (en) * | 2021-06-23 | 2021-09-03 | 重庆长安新能源汽车科技有限公司 | Whole vehicle high and low temperature testing system and method for new energy automobile |
| CN114432623A (en) * | 2022-02-28 | 2022-05-06 | 重庆长安新能源汽车科技有限公司 | Automatic fire extinguishing box and automobile power battery test environment bin |
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2020
- 2020-04-22 CN CN202020615017.9U patent/CN212756898U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341259A (en) * | 2021-06-23 | 2021-09-03 | 重庆长安新能源汽车科技有限公司 | Whole vehicle high and low temperature testing system and method for new energy automobile |
| CN114432623A (en) * | 2022-02-28 | 2022-05-06 | 重庆长安新能源汽车科技有限公司 | Automatic fire extinguishing box and automobile power battery test environment bin |
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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |