Parameter setting of RX410/0.4B gas regulator cabinet
Gas pressure regulating station is one of the important facilities of city gas transmission and distribution system. The safety of gas pressure regulating station is directly related to the safety of the whole city and the stability of social life. Because of the failure of the regulator, the gas of the upper pressure enters the low pressure system directly without reducing the pressure, which will destroy gas meters, pipes, valves and gas appliances and other facilities, and lead to fire, explosion and other malignant accidents, which will do great harm to the society. Therefore, it is very important to speed up the development of gas pressure regulating technology, improve the reliability of gas supply, ensure the normal operation of pressure regulating facilities and ensure the safe and reliable gas supply, which is of great practical significance to the economic development and social stability of the whole city.
Operation parameters of RX300/0.4B gas regulator cabinet Run Feng
Gas pressure regulating station and main performance index Gas pressure regulating station are generally composed of pressure regulator, filter, quick safety shutoff valve, safety release device, measuring instrument and process pipeline, valve and so on. Its main task is to receive gas from upstream pipeline network, filter, regulate pressure, measure and record relevant parameters according to pipeline distribution. The pressure and flow of the net are adjusted and controlled.
(1) The main operating parameters of pressure regulating equipment are: inlet pressure P1; outlet pressure P2; closing pressure PB; releasing pressure PF; cutting pressure PQ.
Operation parameters of RX300/0.4B gas regulator cabinet Run Feng
(2) determination of operation parameters of surge stations
A. The relationship between the closing pressure and the outlet pressure. According to the regulator voltage precision SP (SP = 0.5 (~1.5 ()) and its performance, the relationship between the closing pressure and the outlet pressure: Pb = 1.1 ~1.25 P2
B. The relationship between the closing pressure and the releasing pressure The safe releasing device can alleviate the leakage problem caused by the improper closing of the regulator. The general consideration is to exceed the closing pressure by 10 (~20) (i.e. to start releasing, and the releasing pressure is P1 = 1.1 ~ 1.2 pb).
C. Cut off the relationship between the pressure and the release pressure. The failure of the regulator results in gas emission, which is not conducive to environmental protection and the safety of life and property around, and wastes energy. In order to prevent long-term release, the release pressure is generally considered to exceed 10% ~ 20% (that is, cut off the gas source, that is, cut off the pressure of Pq = 1.1 ~ 1.2 Pf.
Operation parameters of RX300/0.4B gas regulator cabinet Run Feng
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