Natural gas is transferred from the trunk line under the jurisdiction of the Natural Gas Pipeline Company to the gas handling system of the gas turbine power plant for processing.
Through the analysis of the maximum pressure drop of the natural gas processing system, when the pressure of the upstream natural gas pipeline network can meet the demand of gas turbine under various conditions, the natural gas pressure regulating station should be selected for the natural gas processing system.
Gas surge station is generally divided into several functions according to the different functions of each device.
Typical natural gas surge stations include emergency cut-off pry at entrance, crude separation pry, metering pry, filter pry, heating pry, pressure regulating pry, condensate collection device, release device and control system.
The voltage regulator is selected according to the user. There are three types of gas users, one is resident users, one is commercial users, and the other is industrial users. They have great differences in the choice of regulators. They can not share a regulator. The gas pressure of commercial users and industrial users is usually higher.
When choosing voltage regulator, residents usually choose single circuit voltage regulator. The range of inlet pressure is 0.2 MPa~0.4 MPa, and the range of outlet pressure is 1500 Pa~2000 Pa. When choosing voltage regulator in a design, besides choosing according to the size of flow, the location should also be considered. If the voltage regulator is located in the center of the community users, then according to the flow calculation, how many large voltage regulators should be selected, and the opening degree of the voltage regulator should be in the range of 70%-90%.