Application of explosion-proof electric heating in natural gas skid-mounted equipment

The skid-mounted equipment of a natural gas filling station is a general term for the compression system, which generally includes compressors and compressor ancillary systems. The skid-mounted equipment includes pressure regulation, metering, compression systems, dehydration, sequence control, gas storage, gas filling, and control. system.

When extracting natural gas, because the natural gas at the wellhead contains many other gas components and has a large water content, ice blockage is prone to occur in the gas transmission pipeline from the wellhead to the high-pressure integrated skid during winter operation, seriously affecting production efficiency. Moreover, once the valve port of the skid-mounted equipment freezes, it will cause the pressure regulating function of the pressure regulator to fail, and high-pressure natural gas will enter the middle and downstream pipelines of the pressure regulator, etc. A series of problems. In response to this phenomenon, the gas pipeline needs to be heated to prevent the gas pipeline from freezing and blocking.

In the past, hot water tracing for oil production caused uneven heating of gas pipelines and serious heat loss. Now more and more electric heating is used for insulation. Electric heat tracing is a heat tracing method that uses electric energy to heat a line length or a large plane to emit uniform heat to compensate for the heat consumption of the accompanied material in the process and thereby maintain the temperature of the medium. Compared with traditional steam tracing in the petrochemical industry, it has simple facilities, uniform heating, and accurate temperature. Electric heating uses electric energy to heat a long line or a large surface to reduce environmental pollution, save energy, and have low operating costs. advantage.

For electric heating tapes used in natural gas skid-mounted equipment, it is recommended to use explosion-proof self-limiting temperature electric heating tapes. Because natural gas is a flammable and explosive substance, and the self-limiting temperature electric heating tape can automatically adjust the temperature. When the heating tape is installed and powered on, it can run by itself and adjust the temperature according to the on-site environment. There is no need to configure a thermostat. For explosion-proof electric heating tapes, the metal shielding layer on the outer layer of the electric heating tape can effectively play the role of explosion-proof, and ultimately achieve the purpose of explosion-proof heat preservation. In addition, the self-limiting temperature electric heating tape can be cut and used freely, making it very suitable for the insulation of natural gas skid-mounted equipment.