Pressure regulating type pressure control valve

Abstract

The invention relates to a pressure regulating type pressure control valve. The pressure regulating type pressure control valve comprises a first shell. A pipe fluid inlet is formed in one end of the first shell, a pipe fluid outlet is formed in the side wall of the first shell, and a thrust spring component is sleeved with the first shell. The other end of the first shell is connected with a second shell, and a thrust spring pushing unit abutting against the thrust spring component is arranged in the second shell. One end of the inside of the first shell is sleeved with a first ball seat, one end of the first ball seat abuts against the inside of the first shell, and the other end of the first ball seat abuts against a sealed ball. The other side of the sealed ball abuts against a second ball seat, an axial interval annular space between the first ball seat and the second ball seat forms an annular fluid channel which is communicated with the pipe fluid outlet, and the other end of the second ball seat abuts against one end of the thrust spring component. By means of the pressure regulating type pressure control valve, the problems of pressure holding, equipment damage and leakage of fluid caused by small-range fluctuation of flow can be effectively solved, the pressure control is stable during working, the structure is simple, and the usage is convenient.

Description

technical field [0001] The invention relates to a pressure-controlling production technology in the petrochemical industry, in particular to a pressure-regulating type pressure-controlling valve. Background technique [0002] At present, in the various links of the petrochemical industry that require pressure-controlled production, the pressure-controlled valves used in the outlets of pressure vessels, pipe networks, and oil wells that require pressure-controlled production (such as self-flowing wells, gas production wells, and SAGD production wells) are all It is a gate valve, and its flow control relies on rotating the handwheel to change the opening of the valve plate to control the flow and pressure of the medium fluid in the pipeline. Since the opening of the gate valve plate can only be adjusted manually, the valve cannot flexibly control the pressure in the pipeline. When the pressure needs to be controlled, the valve must be opened and closed repeatedly, and then a p...

AI Technical Summary

Problems solved by technology

Since the valve plate opening of the gate valve can only be adjusted manually, the valve cannot flexibly control the pressure in the pipeline. When the pressure needs to be controlled, the valve must be switched on and off repeatedly, and then a pressure gauge must be installed to observe the pressure.

When the flow rate of the fluid rises sharply in a small range, it is often caused by the untimely adjustment of the pressure control valve to cause pressure damage to the pressure vessel, pipe network and process sealing structure, which in turn causes fluid leakage and serious losses

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