Regarding the explosion protection issue of long-shaft pumps
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How is the explosion-proof design considered for long-shaft pumps?
The question is a bit vague, and I’m not sure how to approach it. Taking the common motor E*ibⅡCT6 as an example: ‘Ex’ is the designation for explosion-proof electrical products; ‘ib’ refers to intrinsically safe electrical products that can be used in Zone 1 and Zone 2; ‘ⅡB’ indicates that the product can be used in environments with explosive mixtures of type ⅡB gases and air. The classification of explosion protection levels is mainly divided into Category I (for use in mines) and Category II (for use in industrial facilities). Category II is further divided into: IIA, IIB, IIC (safety level: A
Could you explain it from the perspective of how it works?
We have discontinued the long-axis submersible pump, which was used for pumping sewage; it has now been replaced with a self-overflow type.
Supported. In the first two years, CNPC required that the long-shaft submersible pumps in areas prone to fire and explosion be replaced due to spark explosions caused by one of such pumps; we replaced our sewage pumps with self-priming pumps