What are the main items for routine inspection of fire extinguishers?
Dry powder storage type fire extinguisher (portable) is driven by nitrogen as the power to dry out the powder in the canister. Suitable for fighting petroleum products, paint and organic solvent fire. It can suppress the chain reaction of fire and extinguish fire. Also suitable for extinguishing liquid, gas, electrical fire (dry powder has more than 50 thousand volts of electrical insulation performance). Some can also fight solid fires.Dry powder fire extinguishers can not fight light metal fires.When in use, first pull out the safety pin (some pull up the pull ring), and then press the press, the dry powder can be ejected.Fire should be close to the flame injection; dry powder injection time is short, before spraying to select good spray target, because dry powder easy to drift away, unfavorable upwind jet.Attention to the maintenance of fire extinguishers, should be placed in a good, dry and ventilated place. Each year to check whether the two dry powder caking, if the block should be replaced in a timely manner; once a year to check the weight of the drug, if less than the required weight, or look at the pressure gauge following pressure drop, should be filled in time.
Carbon dioxide extinguisher is carbon dioxide gas stored at high pressure in the air cylinder as the fire extinguishing agent, carbon dioxide fire after leaving no trace, suitable for fighting large equipment, archives, computer room fire, it is also suitable for conducting extinguishing electrified low voltage electrical equipment and oil fire, but it is not available for K sodium, magnesium, aluminum, and other material fire.When in use, the duckbill type disconnect pin and press down to take off the wheel type seal, then counterclockwise rotation of the handwheel, agent can be sprayed out. Note the finger should not touch the microphones, to prevent the injury.Carbon dioxide extinguisher range is close, should be close to the fire, in the upwind direction of injection.The carbon dioxide fire extinguisher should be checked regularly. When the weight is less than 5%, it should be inflated and replaced in time.Cart type: same as dry powder cart.
Check content:1. Is the fire extinguisher stand firmly and well?2. Is the fire extinguisher within normal pressure range?3, the fire extinguisher seal is intact4, fire extinguishers and stents are clean and clean?5 、 is the fire extinguisher in the effective test period?
