泡沫滅火器能滅火嗎？
來源：http://www.xintli.net/ 日期：2022-10-29
滅火時，泡沫滅火器能噴射出大量二氧化碳及泡沫，它們能粘附在可燃物上，使可燃物與空氣隔絕，達到滅火的目的。那么泡沫滅火器能滅火嗎？
川消小編為您講解。
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.
此類滅火器是通過筒體內酸性溶液與堿性溶液混合發生化學反應，將生成的泡沫壓出噴嘴，噴射出去進行滅火的。它除了用于撲救一般固體物質火災外，還能撲救油類等可燃液體火災，但不能撲救帶電設備(使用特殊噴嘴除外)和醇、酮、酯、醚等有機溶劑發生的火災(抗溶泡沫滅火劑除外)。
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).
泡沫滅火器（水基滅火器）在撲滅A類火災中相當有效，而且污染較小。當然水基滅火器的大問題就是不能撲救帶電設備的火災，因此應用范圍受限。二氧化碳分子量是44，空氣分子量是29，所以，二氧化碳在空氣中會向下流動。對于密閉空間，二氧化碳可以像水一樣積聚，一旦漫過火源，火焰也就很快熄滅了。
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.
然而一旦到了開闊地，或者空間很大的場合，二氧化碳就很容易如水一般流動，卻不具備水的浸潤能力。于是很容易向四周擴散，無法積聚足夠的量蓋過火源，于是就起不到滅火作用了。此外，二氧化碳還很貴，零下30度的溫度還很容易凍傷人（包括滅火器的金屬部分），所以使用受到限制。而干粉就比較便宜，對人危害很小，使用磷酸鹽的ABC干粉還容易粘附在物體表面隔絕空氣。
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.
普通泡沫滅火器不可用于撲滅帶電設備的火災，否則將威脅人身。但若使用霧化噴嘴或斷續噴嘴，則可使水霧間有空氣絕緣，可撲救1000V以下帶電火災。
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.
存放條件：泡沫滅火器存放應選擇干燥、陰涼、通風并取用方便之處，不可靠近高溫或可能受到曝曬的地方，以防止碳酸分解而失效;冬季要采取防凍措施，以防止凍結;并應經常擦除灰塵、疏通噴嘴，使之保持通暢。
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、可用于撲救A類物質如木材、棉花、織物、紙張等初起火災。
1. It can be used to put out the incipient fire of Class A materials such as wood, cotton, fabric, paper, etc.
2、也可用于撲救B類物質如汽油、煤油、植物油等初起火災。
2. It can also be used to put out the incipient fire of Class B materials such as gasoline, kerosene, vegetable oil, etc.
3、抗溶性泡沫滅火器能撲救極性溶劑如醇、酮、脂、醛、醚之類的火災。
3. Soluble resistant foam fire extinguishers can put out fires caused by polar solvents such as alcohol, ketone, grease, aldehyde and ether.
4、不能撲救帶電設備火災。
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.xintli.net Learn more!
