Hazardous chemical static electricity can cause fire frequently
Dangerous chemicals in pipeline transportation, although static electricity is generated, but because the pipeline is full of dangerous chemicals and there is not enough air, it does not have the conditions for explosion and fire. When the dangerous chemicals with electric charge are put into the storage tank, they will accumulate because the electric charge cannot be discharged quickly, so that the liquid surface has a higher potential. At this time, if an explosive mixture is formed in the upper space of the liquid surface, it may be possible. A fire and explosion occurred.
Safety regulations require that flammable liquids, flammable gases, and flammable dusts must conduct static electricity in their transmission pipelines, and they must also be fire-resistant and flame-retardant. Therefore, it is best to use metal pipes, but some curved pipelines and vibration locations I have to use a hose, what should I do?
Where is there a hose that conducts static electricity and is flame-retardant?
Hangzhou Haikuo newly developed and launched a new product-flame-retardant static conductive hose, which is certified in accordance with the American UL standard, meets the static conductive and flame retardant standards, and solves the safety problem. The use of safe products is to buy insurance.
static conductive hose material: spiral ring: spiral copper wire, tube wall: polyester polyurethane (in accordance with DIN ISO 4649 standard, more wear-resistant than polyether polyurethane) according to the pipe diameter wall thickness of about 0.6-2.0mm.
Properties: The material is free of plasticizers and halogenating agents, extremely wear-resistant, smooth inner wall, excellent fluidity; good bendability, vacuum and pressure resistance, high wear resistance, long service life; good resistance It has excellent resistance to science and oil, UV resistance and ozone resistance; good air tightness and high tensile strength; according to TRBS 2153 requirements, it is used for non-combustible dust/discrete particles and low conductivity. The wire should be grounded at both ends to ensure the elimination of static electricity.
Temperature range: –40 ℃ to 90 ℃, up to +125 ℃ in a short time.
Frequent static electricity can easily cause fires! Prevent and eliminate static electricity in hazardous chemical storage tank areas. Hazardous chemicals are transported through hoses that are both static and flame retardant.
There are many pipelines in the storage tank area, and anti-static measures must be taken. Generally, pipe flange connections with less than 4 bolts need to be bridged. When connecting between flanges, if insulating gaskets are used for sealing, they need to be bridged. When using threaded connection, the thread should be bridged when sealing rubber is used in the thread. Anti-static hoses must be used for connecting and unloading pipelines. The plastic hose lined with metal wire in the sandwich is an ordinary reinforced plastic hose, not an anti-static hose. A special anti-static hose is required, and the metal wire in the tube must be tested for penetration, and at the same time, it must be in good contact with the metal tube. A jumper wire should be installed on the rotating joint of the loading crane pipe. The jumper wire is generally welded with round steel of not less than 8 mm or pressed by flat metal with bolts. The movable grounding or jumper cord should be copper wire. It is best to connect the wires by welding. For crimping with bolts and springs, repeated grounding should be added, and attention should be paid to avoid grease pollution and rust.