CN211215076U - Combined fire extinguishing system for battery prefabricated cabin of lithium iron phosphate energy storage power station - Google Patents
Combined fire extinguishing system for battery prefabricated cabin of lithium iron phosphate energy storage power station Download PDFInfo
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- CN211215076U CN211215076U CN201921334518.3U CN201921334518U CN211215076U CN 211215076 U CN211215076 U CN 211215076U CN 201921334518 U CN201921334518 U CN 201921334518U CN 211215076 U CN211215076 U CN 211215076U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 25
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000003595 mist Substances 0.000 claims abstract description 80
- 238000000034 method Methods 0.000 claims description 20
- NSGXIBWMJZWTPY-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropane Chemical compound FC(F)(F)CC(F)(F)F NSGXIBWMJZWTPY-UHFFFAOYSA-N 0.000 claims description 5
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052744 lithium Inorganic materials 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 36
- 239000003792 electrolyte Substances 0.000 description 9
- 108010066057 cabin-1 Proteins 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及一种针对磷酸铁锂储能电站电池预制舱的组合灭火***及灭火方法，属于公共-消防技术。The utility model relates to a combined fire-extinguishing system and a fire-extinguishing method for a battery prefabricated cabin of a lithium iron phosphate energy storage power station, belonging to public-firefighting technology.
背景技术Background technique
磷酸铁锂电池具有能量密度大、输出电压高、循环寿命长，环境污染小等优点，已在各种电子设备、电动汽车和电化学储能中广泛使用。其中磷酸铁锂储能电站累计装机量正稳步上升，到2020年装机量将超过2000MW，年增长率接近70％，一旦发生火灾，严重危害供电可靠性和安全性，社会影响和危害极大。而目前在世界范围内，还没有一种能够有效扑灭磷酸铁锂储能电站电池预制舱火灾的灭火方法，国内、外大量储能电站电池预制舱火灾实例就是很好的证明。LiFePO4 batteries have the advantages of high energy density, high output voltage, long cycle life, and low environmental pollution, and have been widely used in various electronic devices, electric vehicles and electrochemical energy storage. Among them, the cumulative installed capacity of lithium iron phosphate energy storage power stations is steadily increasing. By 2020, the installed capacity will exceed 2000MW, with an annual growth rate of nearly 70%. Once a fire occurs, the reliability and safety of power supply will be seriously endangered, and the social impact and harm will be great. At present, in the world, there is no fire extinguishing method that can effectively extinguish the fire in the battery prefabricated cabin of the lithium iron phosphate energy storage power station. The fire in the battery prefabricated cabin of a large number of energy storage power stations at home and abroad is a good proof.
目前国内、外磷酸铁锂储能电站电池预制舱的灭火方法主要采用气体灭火***，以全淹没方式进行灭火，而该灭火方法，只能扑灭明火，无法抑制磷酸铁锂电池热失控的继续发生，几分钟后会发生复燃，且为爆燃。火势更大，因此该方法不能有效扑灭磷酸铁锂储能电站电池预制舱火灾。At present, the fire extinguishing method of the battery prefabricated cabin of the lithium iron phosphate energy storage power station at home and abroad mainly adopts the gas fire extinguishing system, which is completely submerged. , re-ignition will occur after a few minutes, and it is deflagration. The fire is bigger, so this method cannot effectively extinguish the fire in the battery prefabricated cabin of the lithium iron phosphate energy storage power station.
实用新型内容Utility model content
实用新型目的：为了解决现有技术不能有效灭火的问题，本实用新型提供一种针对磷酸铁锂储能电站电池预制舱的组合灭火***及灭火方法。Purpose of the utility model: In order to solve the problem that the existing technology cannot effectively extinguish the fire, the utility model provides a combined fire extinguishing system and a fire extinguishing method for the battery prefabricated cabin of the lithium iron phosphate energy storage power station.
技术方案：为实现上述目的，本实用新型采用的技术方案为：Technical scheme: in order to achieve the above-mentioned purpose, the technical scheme adopted by the present utility model is:
一种针对磷酸铁锂储能电站电池预制舱的组合灭火***，在电池预制舱内每一个电池模组内均安装有一个以上细水雾喷头，所有细水雾喷头通过管网连接至细水雾灭火装置形成细水雾灭火***；在电池预制舱内同时布置有气体灭火***喷头，气体灭火***喷头以全淹没应用灭火方式布置在电池预制舱内，所有气体灭火***喷头通过管网连接至气体灭火装置形成气体灭火***。A combined fire extinguishing system for the battery prefabricated cabin of a lithium iron phosphate energy storage power station. Each battery module in the battery prefabricated cabin is installed with more than one water mist nozzle, and all the water mist nozzles are connected to the water through a pipe network. The mist fire extinguishing device forms a water mist fire extinguishing system; the gas fire extinguishing system nozzles are also arranged in the battery prefabricated cabin, and the gas fire extinguishing system nozzles are arranged in the battery prefabricated cabin in a fully submerged application fire extinguishing method. All gas fire extinguishing system nozzles are connected to the The gas fire extinguishing device forms a gas fire extinguishing system.
具体的，所述气体灭火***为六氟丙烷(HFC-236fa)灭火***或七氟丙烷(HFC-227ea)灭火***。Specifically, the gas fire-extinguishing system is a hexafluoropropane (HFC-236fa) fire-extinguishing system or a heptafluoropropane (HFC-227ea) fire-extinguishing system.
具体的，所述电池模组包括电池模组外壳，电池设置在电池模组外壳内，电池上表面距离电池模组外壳顶板内表面的距离大于等于50cm，电池侧表面距离电池模组外壳侧板内表面的距离大于等于20cm；在电池模组外壳的一个侧板设置有开口，在电池模组外壳的其他侧板设置有网孔区；所述开口的顶边与电池模组外壳顶板内表面高度一致，开口的底边不低于电池上表面；所述网孔区横跨所属侧板的整个宽度，网孔区的顶边低于电池模组外壳顶板内表面15～20cm，网孔区的底边不低于电池上表面；所述细水雾喷头从开口向电池模组外壳内伸入，细水雾喷头的喷放方向朝向电池上表面和电池模组外壳顶板内表面之间的区域。Specifically, the battery module includes a battery module casing, the battery is arranged in the battery module casing, the distance between the upper surface of the battery and the inner surface of the top plate of the battery module casing is greater than or equal to 50cm, and the distance between the side surface of the battery and the side plate of the battery module casing is greater than or equal to 50 cm. The distance between the inner surfaces is greater than or equal to 20cm; an opening is provided on one side plate of the battery module shell, and a mesh area is provided on the other side plates of the battery module shell; the top edge of the opening and the inner surface of the top plate of the battery module shell The height is the same, and the bottom edge of the opening is not lower than the upper surface of the battery; the mesh area spans the entire width of the side plate to which it belongs, and the top edge of the mesh area is 15-20cm lower than the inner surface of the top plate of the battery module shell. The bottom edge is not lower than the upper surface of the battery; the water mist nozzle protrudes into the battery module casing from the opening, and the spray direction of the water mist nozzle is toward the space between the upper surface of the battery and the inner surface of the top plate of the battery module casing. area.
具体的，所述电池上表面距离电池模组外壳顶板内表面的距离大于等于50cm，电池侧表面距离电池模组外壳侧板内表面的距离大于等于20cm，网孔区的开孔率为20～30％。Specifically, the distance between the upper surface of the battery and the inner surface of the top plate of the battery module shell is greater than or equal to 50cm, the distance between the side surface of the battery and the inner surface of the side plate of the battery module shell is greater than or equal to 20cm, and the opening rate of the mesh area is 20～20cm. 30%.
相对于现有技术，我们对现有的电池模组外壳进行了开设开口和打孔形成网孔区域的处理，对电池和电池模组外壳内壁的间距进行了限制，其他没有对现有的电池模组外壳做过多处理。我们知道磷酸铁锂储能电站内电池热失控到失火会有电解液飞溅的情况发生，并且伴随有毒、易燃气体。我们对电池和电池模组外壳内壁的间距设计，是考虑到电解液飞溅的情况能够限制在电池模组外壳内，而不会飞溅的电池预制舱内，同时电解液也不会飞溅至堵塞网孔区域的网孔，因此，对电池和电池模组外壳内壁之间的间距有最小间距的考量，经过多次试验，顶部间距大于50cm、侧面间距大于20cm时，几乎就不存在电解液飞溅至电池模组外壳以外区域(即电池预制舱内)的情况发生；当然，这个间距也不适合过大，过大会增加整个电池模组外壳的尺寸，间接增大了电池预制舱的体积，我们建议顶部间距在50～80cm、侧面间距在20～36cm是比较合适的，这个间距也比较利于细水雾喷头喷射出的细水雾能够透过网孔区扩散到电池预制舱内。Compared with the prior art, we have opened openings and punched holes to form mesh areas on the existing battery module casing, and limited the distance between the battery and the inner wall of the battery module casing. The mod shell is over-processed. We know that the thermal runaway of the battery in the lithium iron phosphate energy storage power station will cause the electrolyte to splash, and it will be accompanied by toxic and flammable gases. We designed the distance between the battery and the inner wall of the battery module shell, considering that the splash of the electrolyte can be limited in the battery module shell without splashing in the battery prefabricated cabin, and the electrolyte will not splash to block the net. The mesh in the hole area, therefore, the minimum distance between the battery and the inner wall of the battery module shell should be considered. After many tests, when the top distance is greater than 50cm and the side distance is greater than 20cm, there is almost no electrolyte splashing to the surface. The situation occurs in the area outside the battery module casing (that is, in the battery prefabricated compartment). Of course, this distance is not suitable for too large. If it is too large, it will increase the size of the entire battery module casing and indirectly increase the volume of the battery prefabricated compartment. We recommend The top spacing is 50-80cm, and the side spacing is 20-36cm. This spacing is also more conducive to the fine water mist sprayed by the water mist nozzle can diffuse into the battery prefabricated compartment through the mesh area.
我们在设计网孔区时，是有顶部15～20cm的禁止开孔区域的设计的，这个也是考虑到电解液飞溅到电池模组外壳顶部时会产生一定的反弹，若没有侧面的遮挡，容易透过网孔区飞溅到电池模组外壳外部区域，影响了将电解液飞溅情况限制在电池模组外壳内部的效果；通过我们对失火电池的电解液飞溅情况观察和多次试验，设计禁止开孔区域效果非常明显和有效。When we designed the mesh area, we designed the top 15-20cm area forbidding opening. This also takes into account that the electrolyte splashed to the top of the battery module shell will produce a certain rebound. If there is no side shielding, it is easy to The splashing through the mesh area to the outer area of the battery module shell affects the effect of limiting the splashing of the electrolyte to the inside of the battery module shell; through our observation and multiple tests of the electrolyte splashing of the fire battery, the design prohibits the opening of the battery. The hole area effect is very visible and effective.
当电池发生火灾时，有毒、易燃气体会聚积在电池模组外壳内，温度升高伴随气体浓度的增加，会增加电池模组发生***的概率；因此我们需要让这些气体能够排出电池模组外壳，同时尽可能避免温度快速提升；针对这个问题，我们设计了网孔区域，让气体能够快速排出，降低电池升温速度；同时，当我们开始细水雾喷头时，细水雾也能够通过网孔区扩散到电池预制舱内，对电池预制舱进行降温。据此，我们对网孔区的开孔率是有一定要求的，太大不能起到防止电解液飞溅的目的，太小又不便于排出气体；通过我们对气体排出情况观察和多次试验，设计开孔区域的开孔率为20～30％(考察区域内，开孔镂空面积占考察区域棉结的百分比)。When a fire occurs in the battery, toxic and flammable gases will accumulate in the battery module casing. The increase in temperature and gas concentration will increase the probability of the battery module explosion; therefore, we need to allow these gases to be discharged from the battery module casing. , and try to avoid rapid temperature increase; in response to this problem, we have designed a mesh area to allow the gas to be quickly discharged and reduce the heating rate of the battery; at the same time, when we start the water mist nozzle, the water mist can also pass through the mesh. The area spreads into the battery prefabricated compartment to cool down the battery prefabricated compartment. According to this, we have certain requirements for the opening rate of the mesh area. If it is too large, it cannot prevent the electrolyte from splashing, and if it is too small, it is inconvenient to discharge gas; The opening rate of the designed opening area is 20-30% (in the inspection area, the area of the opening holes accounts for the percentage of the neps in the inspection area).
我们在开口的侧板上没有设计网孔区，是因为该侧面已经设置了开口，透气功能已经非常充足；同时细水雾喷头设置在开口区域，其喷射的细水雾较少会从该侧面溢出；但这并非说本区域不能够设置网孔，也是可以参考其他区域设置网孔区域的；不建议让开口贯穿整个侧面，是考虑到电解液飞溅的情况。We did not design the mesh area on the side panel of the opening, because the opening has been set on the side, and the ventilation function is already very sufficient; at the same time, the water mist nozzle is set in the opening area, and the water mist sprayed by it is less likely to pass from this side. overflow; but this does not mean that mesh holes cannot be set in this area, and it is also possible to set mesh areas with reference to other areas; it is not recommended to let the opening run through the entire side, because the splash of electrolyte is considered.
具体的，所述细水雾喷头为扁平扇形结构，在扇形曲面上沿弧线方向设置有一排喷嘴，一般设计所有喷嘴喷放方向均在一个平面内，进一步可以设计该平面在电池上表面和电池模组外壳顶板内表面中间层的上下2cm范围内。采用该细水雾喷头，一般在每个电池模组外壳内安装一个细水雾喷头即可。Specifically, the fine water mist nozzle is a flat fan-shaped structure, and a row of nozzles is arranged on the fan-shaped curved surface along the arc direction. Generally, the spraying directions of all nozzles are designed to be in a plane, and the plane can be further designed on the upper surface of the battery and the surface of the battery. Within 2cm above and below the middle layer of the inner surface of the top plate of the battery module shell. With the water mist nozzle, generally, a water mist nozzle is installed in the casing of each battery module.
相对于现在普通的圆形喷头，我们设计了细水雾喷头，一方面是为了减少整个细水雾喷头的厚度，在对现有电池模组外壳改动不大的情况下使其能够顺利安装在电池模组外壳内，另一方面沿弧线设置一排喷嘴也能够让细水雾迅速布满电池模组外壳内部空间，其喷射出的是有一定厚度的扇面细水雾。若采用普通圆形喷头，一方面，喷出的细水雾为倒圆锥形，大部分细水雾会喷到电池模组外壳内壁上，形成大的水珠和水流，丧失细水雾的灭火作用；另一方面，不便于安装到电池模组内。细水雾喷头的设计，以及其喷嘴喷射方向的设置，使其产生的细水雾能够迅速在电池模组外壳内扩散，同时也很容易从网孔区域扩散出去，降低了其在电池上的积水量，对电池给予了一定程度的保护。关于细水雾的标准，参考我国的相关消防标准。Compared with the current ordinary circular nozzle, we designed the water mist nozzle. On the one hand, it is to reduce the thickness of the entire water mist nozzle, so that it can be smoothly installed in the existing battery module shell without changing much. In the battery module housing, on the other hand, a row of nozzles along the arc can also make the fine water mist quickly fill the inner space of the battery module housing, and the spray is a fan surface fine water mist with a certain thickness. If ordinary circular nozzles are used, on the one hand, the sprayed fine water mist is inverted conical, and most of the fine water mist will be sprayed on the inner wall of the battery module shell, forming large water droplets and water flow, and losing the fire extinguishing effect of the fine water mist. function; on the other hand, it is inconvenient to install into the battery module. The design of the water mist nozzle and the setting of the spray direction of the nozzle enable the water mist generated by it to quickly diffuse inside the battery module casing, and at the same time, it is also easy to diffuse out from the mesh area, reducing its impact on the battery. The amount of accumulated water gives a certain degree of protection to the battery. For the standard of water mist, refer to the relevant fire protection standards in my country.
一种针对磷酸铁锂储能电站电池预制舱的灭火***的组合灭火方法，包括如下步骤：A combined fire extinguishing method for a fire extinguishing system of a battery prefabricated cabin of a lithium iron phosphate energy storage power station, comprising the following steps:
(1)当电池预制舱内任意电池模组起火后，气体灭火***开启，所有气体灭火***喷头均喷放灭火剂，以全淹没应用灭火方式进行灭火；随后，细水雾灭火***开启，整个电池预制舱内所有电池模组内的细水雾喷头均喷放细水雾，以局部应用灭火方式进行灭火，一方面扑灭起火电池模组火灾，另一方面对未起火电池模组进行冷却保护，防止热失控和火灾蔓延；(1) When any battery module in the battery prefabricated cabin catches fire, the gas fire extinguishing system is turned on, and all the gas fire extinguishing system nozzles are sprayed with fire extinguishing agent, and the fire is extinguished by full submergence; The fine water mist nozzles in all battery modules in the battery prefabricated cabin spray fine water mist to put out the fire by local application of fire extinguishing. , to prevent thermal runaway and fire spread;
(2)气体灭火***先行完成明火的扑灭后，细水雾喷头持续喷放细水雾，一方面持续抑制热失控防止复燃，另一方面细水雾会在电池预制舱内弥漫，以全淹没应用灭火方式对整个电池预制舱内的其他区域进行灭火或抑制热失控；(2) After the gas fire extinguishing system first completes the extinguishing of the open fire, the water mist nozzle continues to spray water mist. On the one hand, it continues to suppress thermal runaway and prevent re-ignition. Submerge fire extinguishing methods to fire out other areas in the entire battery prefabricated cabin or suppress thermal runaway;
(3)灭火完成后，关闭细水雾灭火***，细水雾灭火***复位待用，气体灭火***重装复位待用。(3) After the fire extinguishing is completed, turn off the water mist fire extinguishing system, reset the water mist fire extinguishing system for use, and reset the gas fire extinguishing system for use.
另一种针对磷酸铁锂储能电站电池预制舱的灭火***的组合灭火方法，包括如下步骤：Another combined fire extinguishing method for the fire extinguishing system of the battery prefabricated cabin of the lithium iron phosphate energy storage power station, comprising the following steps:
(1)当电池预制舱内电池模组以外的其他区域起火后，气体灭火***开启，所有气体灭火***喷头均喷放灭火剂，以全淹没应用灭火方式进行灭火；(1) When a fire occurs in other areas than the battery module in the battery prefabricated cabin, the gas fire extinguishing system is turned on, and all the gas fire extinguishing system nozzles are sprayed with fire extinguishing agent, and the fire is extinguished by full submersion application fire extinguishing method;
(2)明火扑灭后，细水雾灭火***开启，整个电池预制舱内所有电池模组内的细水雾喷头均喷放细水雾，一方面以局部应用灭火方式进行灭火，持续抑制热失控防止复燃，另一方面细水雾会在电池预制舱内弥漫，以全淹没应用灭火方式抑制整个电池预制舱内其他区域发生热失控；(2) After the open fire is extinguished, the water mist fire extinguishing system is turned on, and the water mist nozzles in all battery modules in the entire battery prefabricated cabin spray water mist. To prevent re-ignition, on the other hand, the fine water mist will diffuse in the battery prefabricated cabin, and apply fire extinguishing method to suppress the thermal runaway in other areas of the entire battery prefabricated cabin;
(3)灭火完成后，关闭细水雾灭火***，细水雾灭火***复位待用，气体灭火***重装复位待用。(3) After the fire extinguishing is completed, turn off the water mist fire extinguishing system, reset the water mist fire extinguishing system for use, and reset the gas fire extinguishing system for use.
该另一种方式中，也可以不需要实施步骤(2)和步骤(3)，其灭火方法与现在的灭火方法相同；增加步骤(2)和(3)是属于安全强化的处理方式。In this other way, steps (2) and (3) may not need to be implemented, and the fire-extinguishing method is the same as the current fire-extinguishing method; adding steps (2) and (3) is a processing method for safety enhancement.
有益效果：本实用新型提供的一种针对磷酸铁锂储能电站电池预制舱的灭火***及灭火方法，能够有效扑灭磷酸铁锂储能电站电池预制舱火灾，且对预制舱内未起火的电池模组没有任何实质性的影响，处理恢复后可继续使用，解决了目前称为世界难题的新能源锂电池应用领域的消防安全问题；灭火速度快，并有效抑制电池热失控继续发生避免复燃。Beneficial effect: The fire extinguishing system and fire extinguishing method for the battery prefabricated cabin of the lithium iron phosphate energy storage power station provided by the present utility model can effectively extinguish the fire in the battery prefabricated cabin of the lithium iron phosphate energy storage power station, and can effectively extinguish the fire in the battery prefabricated cabin of the lithium iron phosphate energy storage power station, and can effectively extinguish the fire in the battery prefabricated cabin of the lithium iron phosphate energy storage power station. The module does not have any substantial impact, and can continue to be used after treatment and recovery, which solves the fire safety problem in the application field of new energy lithium batteries, which is currently known as a world problem; the fire extinguishing speed is fast, and the thermal runaway of the battery is effectively suppressed to avoid re-ignition. .
附图说明Description of drawings
图1为本实用新型的结构示意图；Fig. 1 is the structural representation of the utility model;
图2为电池模组的结构示意图；2 is a schematic structural diagram of a battery module;
图3为电池模组外壳的立体结构示意图(顶板未画出)；Fig. 3 is the three-dimensional structure schematic diagram of the battery module casing (the top plate is not drawn);
图4为细水雾喷头及其喷放出的细水雾俯视结构示意图；Fig. 4 is a top-view structural schematic diagram of a water mist nozzle and the water mist sprayed by it;
图5为细水雾喷头的侧视结构示意图；Fig. 5 is the side view structure schematic diagram of fine water mist nozzle;
图中包括：1-电池预制舱；2-细水雾灭火***管网；3-电池模组；4-开口；5-网孔区；6-细水雾喷头；6-1-喷嘴；6-2-管网连接头；6-3-细水雾喷头喷放出的细水雾；7-气体灭火***管网；8-气体灭火***喷头。The picture includes: 1- battery prefabricated cabin; 2- water mist fire extinguishing system pipe network; 3- battery module; 4- opening; 5- mesh area; 6- water mist nozzle; 6-1- nozzle; 6 -2-pipe network connection head; 6-3-fine water mist sprayed by water mist nozzle; 7-gas fire extinguishing system pipe network; 8-gas fire extinguishing system nozzle.
具体实施方式Detailed ways
下面结合附图对本实用新型作更进一步的说明。The present utility model will be further described below in conjunction with the accompanying drawings.
如图1所示为一种针对磷酸铁锂储能电站电池预制舱的组合灭火***，在电池预制舱1内每一个电池模组3内均安装一个细水雾喷头6，所有细水雾喷头6通过细水雾灭火***管网2连接至细水雾灭火装置形成细水雾灭火***；在电池预制舱1内同时布置有气体灭火***喷头8，气体灭火***喷头8以全淹没应用灭火方式布置在电池预制舱1内，所有气体灭火***喷头8通过气体灭火***管网7连接至气体灭火系装置形成气体灭火***。所述气体灭火***为六氟丙烷(HFC-236fa)灭火***或七氟丙烷(HFC-227ea)灭火***。As shown in Figure 1, a combined fire extinguishing system for the battery prefabricated cabin of a lithium iron phosphate energy storage power station is installed. A
如图2、3所示，所述电池模组3包括电池模组外壳，电池设置在电池模组外壳内，电池上表面距离电池模组外壳顶板内表面的距离大于等于50cm，电池侧表面距离电池模组外壳侧板内表面的距离大于等于20cm；在电池模组外壳的一个侧板设置有开口4，在电池模组外壳的其他侧板设置有网孔区5；所述开口4的顶边与电池模组外壳顶板内表面高度一致，开口4的底边不低于电池上表面；所述网孔区5横跨所属侧板的整个宽度，网孔区5的顶边低于电池模组外壳顶板内表面15～20cm，网孔区5的底边不低于电池上表面；所述细水雾喷头6从开口4向电池模组外壳内伸入，细水雾喷头6的喷放方向朝向电池上表面和电池模组外壳顶板内表面之间的区域。所述电池上表面距离电池模组外壳顶板内表面的距离大于等于50cm，电池侧表面距离电池模组外壳侧板内表面的距离大于等于20cm，网孔区5的开孔率为25％。As shown in Figures 2 and 3, the
如图4、5所示，所述细水雾喷头6为扁平扇形结构，在扇形曲面上沿弧线方向设置有一排喷嘴6-1，所有喷嘴6-1喷放方向均在一个平面内，该平面在电池上表面和电池模组外壳顶板内表面中间层的上下2cm范围内。细水雾喷头6通过管网连接头6-2连接细水雾灭火***管网2，细水雾喷头6喷射出的细水雾6-3为一定厚度的扇面细水雾。As shown in Figures 4 and 5, the
一种基于上述针对磷酸铁锂储能电站电池预制舱的灭火***的组合灭火方法，根据电池模组3是否起火分为两种救援情况：A combined fire-extinguishing method based on the above-mentioned fire-extinguishing system for the battery prefabricated cabin of a lithium iron phosphate energy storage power station is divided into two rescue situations according to whether the
情况一、电池预制舱1内任意电池模组3起火，根据如下步骤施救：
(1)当电池预制舱1内任意电池模组3起火后，气体灭火***开启，所有气体灭火***喷头8均喷放灭火剂，以全淹没应用灭火方式进行灭火；随后，细水雾灭火***开启，整个电池预制舱1内所有电池模组3内的细水雾喷头6均喷放细水雾，以局部应用灭火方式进行灭火，一方面扑灭起火电池模组3火灾，另一方面对未起火电池模组3进行冷却保护，防止热失控和火灾蔓延；(1) When any
(2)气体灭火***先行完成明火的扑灭后，细水雾喷头6持续喷放细水雾，一方面持续抑制热失控防止复燃，另一方面细水雾会在电池预制舱1内弥漫，以全淹没应用灭火方式对整个电池预制舱1内的其他区域进行灭火或抑制热失控；(2) After the gas fire extinguishing system first completes the extinguishing of the open fire, the
(3)灭火完成后，关闭细水雾灭火***，细水雾灭火***复位待用，气体灭火***重装复位待用。(3) After the fire extinguishing is completed, turn off the water mist fire extinguishing system, reset the water mist fire extinguishing system for use, and reset the gas fire extinguishing system for use.
情况二、电池预制舱1内电池模组3以外的其他区域起火后，根据如下步骤施救：
(1)当电池预制舱1内电池模组3以外的其他区域起火后，气体灭火***开启，所有气体灭火***喷头8均喷放灭火剂，以全淹没应用灭火方式进行灭火；(1) When a fire occurs in other areas other than the
(2)明火扑灭后，细水雾灭火***开启，整个电池预制舱1内所有电池模组3内的细水雾喷头6均喷放细水雾，一方面以局部应用灭火方式进行灭火，持续抑制热失控防止复燃，另一方面细水雾会在电池预制舱1内弥漫，以全淹没应用灭火方式抑制整个电池预制舱1内其他区域发生热失控；(2) After the open fire is extinguished, the water mist fire extinguishing system is turned on, and the
(3)灭火完成后，关闭细水雾灭火***，细水雾灭火***复位待用，气体灭火***重装复位待用。(3) After the fire extinguishing is completed, turn off the water mist fire extinguishing system, reset the water mist fire extinguishing system for use, and reset the gas fire extinguishing system for use.
以上所述仅是本实用新型的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本实用新型的保护范围。The above is only the preferred embodiment of the present utility model, it should be pointed out that: for those skilled in the art, without departing from the principle of the present utility model, several improvements and modifications can also be made. These improvements and Retouching should also be regarded as the protection scope of the present invention.
Claims (5)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110496335A (en) * | 2019-08-16 | 2019-11-26 | 国网江苏省电力有限公司 | Combination fire extinguishing system and fire extinguishing method for battery prefabricated cabin of lithium iron phosphate energy storage power station |
| CN112090006A (en) * | 2020-11-10 | 2020-12-18 | 国网江苏省电力有限公司经济技术研究院 | Fire control system and method for prefabricated cabin |
| CN112604203A (en) * | 2020-12-21 | 2021-04-06 | 中国科学技术大学 | Fire extinguishing method for new energy automobile |
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2019
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110496335A (en) * | 2019-08-16 | 2019-11-26 | 国网江苏省电力有限公司 | Combination fire extinguishing system and fire extinguishing method for battery prefabricated cabin of lithium iron phosphate energy storage power station |
| CN110496335B (en) * | 2019-08-16 | 2023-06-13 | 国网江苏省电力有限公司 | Combination fire extinguishing system and fire extinguishing method for battery prefabricated cabin of lithium iron phosphate energy storage power station |
| CN112090006A (en) * | 2020-11-10 | 2020-12-18 | 国网江苏省电力有限公司经济技术研究院 | Fire control system and method for prefabricated cabin |
| CN112090006B (en) * | 2020-11-10 | 2021-02-09 | 国网江苏省电力有限公司经济技术研究院 | Fire control system and method for prefabricated cabin |
| CN112604203A (en) * | 2020-12-21 | 2021-04-06 | 中国科学技术大学 | Fire extinguishing method for new energy automobile |
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