Regulating method of water stroking-proof on-off valve

Abstract

A regulating method for a water attack resisting open and close valve is used in the field of oil field oil production and mechanical flow delivery. The invention is an active protection water attack measures, sets the opening and closing program of the open and close valve, i. e. slow initialization opening and closing under the condition that the open and close action time of the open and close valve is definite to lead fluctuation generated from the forward wave and the reflected wave of the water attack not to develop completely and prevent the direct water attack under a certain open amount. In the opening later period, the opening speed is high, four times to the initialization speed. The pressure variation is mostly the mutual effect of the water attack wave and the water attack reflected wave. The opening amount variation has less effect to the initialization speed and the water attack wave amplitude. Therefore, the rise value of the water attack pressure in the system is minimum or less than prescribed value so as to facilitate to reduce the systemic responsive time. The water attack protection method can actively prevent the water attack destruction, reduce the preventive measures, saves construction cost and has a low cost and small land occupation and a perfect pressure-limiting effect.

Description

technical field

[0001] The invention relates to an adjustment method of an anti-shock switch valve, in particular to an adjustment method through the opening and closing action of the switch valve to minimize or lower the value of the fluid water hammer pressure rise, which is used for oil production, field of mechanical transport. Background technique

[0002] The opening and closing of the normal on-off valve, flow adjustment or personnel misoperation in the fluid delivery system will cause the fluid in the system to be in a hydraulically unstable flow process, thereby forming a reciprocating transient pressure wave in the system. This hydraulic transient process is also called water hammer, which may cause the pressure of the flow system to rise or fall suddenly, so as to cause damage to the structure or performance of the system and cause operational accidents. The production system of the oil field is characterized by complex pipeline networks, relatively many resistan...

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