Shangqiu gas regulator listed company run Feng product quality is high
The selection of pressure regulating equipment types in the gas regulating pry includes the AQ regulator and the regulating valve. The AQ type voltage regulator or regulating valve is the core function equipment of the pressure regulating skid, and shoulders the core task -- decompression and steady voltage. At present, the main regulating valves used in the industry are pneumatic control valves and electric control valves. We see that the electric control valve is used more and more as a work control valve at various plant stations. Selection of pressure regulating equipment in Run Feng gas regulating pry
In the early natural gas transmission and distribution engineering, the number of downstream users is limited, while the gas supply is stable and the large-scale storage equipment is insufficient, the upstream companies often want the downstream User Company to use more gas, and the gas contract signed by the upstream is also more than the non negotiation contract. The main work of the sled can be the pressure reducing and stabilizing pressure. During this period, the working pressure equipment mainly uses the AQ type pressure regulator produced by moisten and Feng, because the AQ type pressure regulator is the fastest, the highest precision, the stability and the reliability of all kinds of work regulating equipment.
With the booming development of the gas market, the flow of gas in the lower reaches is becoming more and more large, the capacity of the upstream gas supply is beginning to be challenged. In the peak season, there will be a shortage of demand. The upstream companies begin to put forward the requirement of limiting the flow, in order to distribute the flow of traffic to different users. This time can control valve opening according to pressure signal to realize pressure regulation, but also can control valve opening by flow signal to realize flow regulation valve is widely used. Selection of pressure regulating equipment in Run Feng gas regulating pry
The control valve can be divided into pneumatic control valve and electric control valve according to the driving mode. In our country, the main power source of the pneumatic regulating valve is the instrument wind (compressed air provided by the station). In addition to the instrument wind abroad, it can also be used as a pneumatic source after the pipeline gas is decompressed. Domestic designers generally do not use duct gas as air source because they are limited by domestic standards and safety considerations. The advantage of pneumatic control valve is fast reaction, especially relative to electric control valve. The disadvantage is that the instrument wind is needed in domestic projects, and it can not be applied in the factory station where there is no instrument wind. CNOOC Guangdong Dapeng LNG project was consulted by foreign agencies in that year, and all regulating valves were run by regulating valve.
In the plant which does not configure the instrument wind, there is an electric regulating valve on the project that regulates the flow of flow, and the west east gas transmission project of China Petroleum is to use the electric regulating valve as the working regulating valve. The electric regulating valve is convenient to install, the power source is easy to be realized, but the reaction speed of the electric control valve is slower than that of the self force type and the pneumatic type, so it is usually used in conjunction with the AQ type voltage regulator that monitors the production of the moistening and Fung production. Selection of pressure regulating equipment in Run Feng gas regulating pry
To sum up, if a sled is to adjust pressure as the main task, it should be the first AQ type pressure regulator of moistening production. If there is both the demand for regulating pressure and the demand of regulating flow, the first choice is the pneumatic regulating valve; if there is not only the demand for regulating pressure but also the demand for regulating flow, the control valve is selected without the meter in the station.
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