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Multistage flow safety valve for oil production

A technology of safety valve and flow rate, which is applied in the direction of the device for absorbing fluid energy of the valve, sliding valve, valve details, etc. It can solve the problems of inaccurate flow control accuracy and multi-level control of the flow control valve, so as to achieve accurate flow control , reduce collision, convenient effect

Active Publication Date: 2018-09-14
SHENZHEN HIGHLEAD OILFIELD TECH DEVCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flow control valve cannot achieve multi-level control, and the flow control accuracy is not accurate.

Method used

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  • Multistage flow safety valve for oil production
  • Multistage flow safety valve for oil production
  • Multistage flow safety valve for oil production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0024] As an embodiment of the present invention, the first valve module 3 includes a first valve plug 31, a ball one 32, a spring one 33, a spring five 34, a push block one 35 and a slider one 36. A valve plug 31 is provided with a No. 1 groove 37, the first valve plug 31 is annular, and the inner wall of the second valve plug 41 is also provided with a groove corresponding to the No. 2 groove 47, and a rubber anti-skid pad is built in the groove; The ball one 32 is located in the first groove 37, and the outer wall of the second valve plug 41 is provided with a hemispherical groove; one end of the spring one 33 is fixedly connected with the ball one 32, and the other end of the spring one 33 Connected with the first valve plug 31, the elasticity of spring one 33 is greater than that of spring two 43; one end of said spring five 34 is fixedly connected with ball one 32; the other end of said push block one 35 and spring five 34 connection; the slider one 36 is in contact with...

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Abstract

The invention belongs to the field of oil production, and particularly relates to a multistage flow safety valve for oil production. The multistage flow safety valve comprises a valve seat, a valve body, a first valve module, a second valve module, a third valve module and a push module, and the valve seat is provided with a liquid inlet; the valve body and the valve seat are in threaded connection, a threaded hole is formed in the right side of the valve body, and a liquid outlet is formed in the valve body; the first valve module is installed on the valve seat and is used for first-stage flow control, the second valve module is installed on the first valve module and is used for second-stage flow control, and a third valve module is installed on the second valve module and is used for third-stage flow control; and the push module is installed in the threaded hole of the valve body and is used for controlling the first valve module, the second valve module and the third valve module to work. The multistage flow safety valve is mainly used for multistage control over flow, flow control is more accurate, and meanwhile, the control valve has the good buffer performance and the good stability.

Description

technical field [0001] The invention belongs to the field of oil production, in particular to a multistage flow safety valve for oil production. Background technique [0002] Flow control valve, also known as 400X flow control valve, is a multi-functional valve that uses high-precision pilot mode to control flow. It is suitable for pipelines that need to control the flow and pressure of the water distribution pipe, keep the predetermined flow constant, limit the excessive flow to a predetermined value, and appropriately reduce the upstream high pressure, even if the pressure upstream of the main valve changes, it will not affect Flow downstream of the main valve. The flow control valve is a valve that controls the flow of the orifice by changing the fluid resistance of the orifice under a certain pressure difference, thereby adjusting the movement speed of the actuator (hydraulic cylinder or hydraulic motor). It mainly includes throttle valve, speed control valve, overflow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/24F16K3/314F16K3/34F16K47/02
Inventor 林明唐克
Owner SHENZHEN HIGHLEAD OILFIELD TECH DEVCO LTD
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