泡沫灭火器能灭火吗？
来源：http://www.cx-fire.com/ 日期：2022-10-29
灭火时，泡沫灭火器能喷射出大量二氧化碳及泡沫，它们能粘附在可燃物上，使可燃物与空气隔绝，达到灭火的目的。那么泡沫灭火器能灭火吗？
川消小编为您讲解。
When extinguishing a fire, the foam extinguisher can eject a large amount of carbon dioxide and foam, which can adhere to the combustibles to isolate the combustibles from the air and achieve the purpose of extinguishing the fire. Can foam extinguisher extinguish fire? Sichuan Xiaobian explains it to you.
此类灭火器是通过筒体内酸性溶液与碱性溶液混合发生化学反应，将生成的泡沫压出喷嘴，喷射出去进行灭火的。它除了用于扑救一般固体物质火灾外，还能扑救油类等可燃液体火灾，但不能扑救带电设备(使用特殊喷嘴除外)和醇、酮、酯、醚等有机溶剂发生的火灾(抗溶泡沫灭火剂除外)。
This type of fire extinguisher produces chemical reaction by mixing the acid solution and alkaline solution in the cylinder, pressing the generated foam out of the nozzle and ejecting it to extinguish the fire. In addition to being used to put out fires caused by general solid materials, it can also put out fires caused by combustible liquids such as oil, but it cannot put out fires caused by charged equipment (except for the use of special nozzles) and organic solvents such as alcohol, ketone, ester, ether (except for the insoluble foam extinguishing agent).
泡沫灭火器（水基灭火器）在扑灭A类火灾中相当有效，而且污染较小。当然水基灭火器的大问题就是不能扑救带电设备的火灾，因此应用范围受限。二氧化碳分子量是44，空气分子量是29，所以，二氧化碳在空气中会向下流动。对于密闭空间，二氧化碳可以像水一样积聚，一旦漫过火源，火焰也就很快熄灭了。
Foam fire extinguishers (water-based fire extinguishers) are quite effective in extinguishing Class A fires, and have less pollution. Of course, the major problem of water-based fire extinguishers is that they can not extinguish the fire of live equipment, so their application scope is limited. The molecular weight of carbon dioxide is 44, and the molecular weight of air is 29. Therefore, carbon dioxide will flow downward in the air. For a confined space, carbon dioxide can accumulate like water. Once it overflows the fire source, the flame will be extinguished quickly.
然而一旦到了开阔地，或者空间很大的场合，二氧化碳就很容易如水一般流动，却不具备水的浸润能力。于是很容易向四周扩散，无法积聚足够的量盖过火源，于是就起不到灭火作用了。此外，二氧化碳还很贵，零下30度的温度还很容易冻伤人（包括灭火器的金属部分），所以使用受到限制。而干粉就比较便宜，对人危害很小，使用磷酸盐的ABC干粉还容易粘附在物体表面隔绝空气。
However, once in an open area or in a large space, carbon dioxide flows easily like water, but has no water infiltration capacity. As a result, it is easy to spread around and cannot accumulate enough to cover the fire source, so it can not extinguish the fire. In addition, carbon dioxide is also very expensive, and people are vulnerable to frostbite (including the metal part of the fire extinguisher) at a temperature of - 30 ℃, so the use is limited. The dry powder is relatively cheap and does little harm to people. ABC dry powder using phosphate is also easy to adhere to the surface of objects to isolate air.
普通泡沫灭火器不可用于扑灭带电设备的火灾，否则将威胁人身。但若使用雾化喷嘴或断续喷嘴，则可使水雾间有空气绝缘，可扑救1000V以下带电火灾。
Ordinary foam fire extinguishers cannot be used to extinguish the fire of live equipment, or they will threaten personal safety. However, if atomizing nozzle or intermittent nozzle is used, air insulation can be made between water mist, and live fire under 1000V can be put out.
存放条件：泡沫灭火器存放应选择干燥、阴凉、通风并取用方便之处，不可靠近高温或可能受到曝晒的地方，以防止碳酸分解而失效;冬季要采取防冻措施，以防止冻结;并应经常擦除灰尘、疏通喷嘴，使之保持通畅。
Storage conditions: foam extinguishers should be stored in a dry, cool, ventilated place with convenient access, and should not be close to places with high temperature or possible exposure to the sun, so as to prevent failure due to decomposition of carbonic acid; Anti freezing measures shall be taken in winter to prevent freezing; The dust shall be removed frequently and the nozzle shall be unblocked to keep it smooth.
1、可用于扑救A类物质如木材、棉花、织物、纸张等初起火灾。
1. It can be used to put out the incipient fire of Class A materials such as wood, cotton, fabric, paper, etc.
2、也可用于扑救B类物质如汽油、煤油、植物油等初起火灾。
2. It can also be used to put out the incipient fire of Class B materials such as gasoline, kerosene, vegetable oil, etc.
3、抗溶性泡沫灭火器能扑救极性溶剂如醇、酮、脂、醛、醚之类的火灾。
3. Soluble resistant foam fire extinguishers can put out fires caused by polar solvents such as alcohol, ketone, grease, aldehyde and ether.
4、不能扑救带电设备火灾。
4. The fire of live equipment cannot be put out.
Can foam extinguisher extinguish fire? The above is the answer to the question. I hope I can help you. Of course, you need to maintain the product regularly to avoid problems when using it. Follow us http://www.cx-fire.com Learn more!
