Analysis of Condensate Reasons by Runfeng of Natural Gas Pressure Reducing Valve
According to the principle of Joule-Thomson effect, the temperature drop of natural gas will occur in the process of adiabatic throttling expansion.
Generally, the pressure decreases by 0.2-0.3 MPa and the temperature decreases by about 1 C.
In this way, the stronger the negative pressure, the more likely it is to form ice blockage at the conduit or valve orifice of the regulator commander.
It is very common to adjust the natural gas pressure from 4 MPa to 0.4 MPa.
Especially in winter, if the temperature of natural gas at the outlet of the regulator drops sharply above 12 C and the temperature of the regulator is below 10 C, the outlet temperature of the regulator will drop below - 2 C.
Because the caliber of the pipe or valve orifice of the regulator commander is relatively small, when the bottle is filled with such moisture and impurities as natural gas.
Once the valve orifice freezes, it will cause a series of problems, such as the failure of pressure regulating function of the regulator, high-pressure natural gas entering the downstream pipeline of the regulator, and so on.
Therefore, in order to ensure the safety of gas use, the operation of the regulator can be guaranteed smoothly by only increasing the temperature of natural gas at the inlet of the local regulator.
Common Methods of Preventing Voltage Regulator from Icing
There are many common methods to prevent the voltage regulator from freezing, although each heating method has its own advantages and disadvantages: heat exchanger method, swirl pilot gas heater method, pipeline electric heating method, conductor heater method, etc.
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