Gas-liquid separator outlet control valve at wellhead position

Abstract

The gas-liquid separator outlet control valve at the wellhead position comprises a first valve body mechanism and a second valve body mechanism, the first valve body mechanism comprises a cylindrical first valve element, a first valve rod is fixedly connected to the first valve element, and the first valve rod penetrates through the first valve element from the side wall of the first valve element; one end of the first valve rod is rotationally connected with the first valve body through a bearing, the end, extending out of the first valve body, of the first valve rod is connected with a first driving device used for driving the first valve rod to rotate, the first valve rod rotates to drive the first valve element to rotate, and then the opening degree of the flow adjusting valve is controlled. The structure of the second valve body mechanism is the same as that of the first valve body mechanism, a control device is arranged on the outer side of the first valve body, the control device responds to angle signals and sends corresponding control signals to the first driving device and the second driving device so as to achieve automatic control over the valve rod, and the control device is electrically connected with a mass flow meter. And the mass flow meter is arranged at an inlet of the gas-liquid separator.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, relates to a gas-liquid separator outlet control valve at a wellhead position, and also relates to a control system of the control valve. Background technique [0002] In petroleum, chemical and other process industries, some unit operations are often involved, such as separation, dehumidification, and rectification. In these processes, the gas and liquid phases transfer mass and energy through close contact to achieve the purpose of gas purification, decontamination, and dehumidification. The diameter of the droplets dispersed in the gas is usually between 0.1 and 5000 μm. If these tiny droplets are not separated, they will often affect the subsequent operation process, and even cause irreparable losses. For example, in oil and gas production, the produced fluid from oil and gas wells is usually a mixture of oil, water and gas, which must be separated before storage and transport...

AI Technical Summary

Problems solved by technology

However, there are often fluctuations in industrial production, which lead to back mixing of separated substances

[0003] Taking gas-liquid separation as an example, when the content of each component at the inlet of the existing separator changes, the outlet flow that cannot be adjusted in time will cause the gas-liquid interface to rise or fall. In extreme cases, the container will be full of gas or all of it. The liquid situation seriously affects the separation effect

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