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Valve element recyclable type underwater throttle valve

A throttle valve and valve core technology, which is applied in the throttle valve field, can solve the problems of large structure size of the regulating valve, cumbersome recovery operation, low control accuracy, etc., and achieves exquisite structural design, compact overall structure and small overall volume. Effect

Active Publication Date: 2016-07-06
CHONGQING QIANWEI SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the common defects of existing control valves such as large structural size, low control accuracy, low reliability, and cumbersome recycling operations, and provide a simple structure, high control accuracy, and recyclable valve. Retrievable subsea choke valve with spool

Method used

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  • Valve element recyclable type underwater throttle valve
  • Valve element recyclable type underwater throttle valve
  • Valve element recyclable type underwater throttle valve

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Embodiment

[0027] The valve core recoverable underwater throttle valve provided in this embodiment, such as figure 1 As shown in —5, it includes the throttle valve body 1. The throttle valve body 1 is mainly composed of the valve core assembly 2 and the valve body assembly 3. The two parts are arranged in separate parts, which can be separated up and down. The valve body assembly 3 The lower part is provided with a valve body 5 that is fixed on the Christmas tree by bolting. The valve body 5 is the only way for fluid to pass; the valve core assembly 2 is provided with a cage 6 that can be inserted into the valve body to adjust the passage through the valve body. The size of the fluid flow (pressure) of 5, and can be recovered by special tools. The throttle body 1 is arranged inside the connector 4. The arcuate body clamp 11 of the connector 4 is two parts arranged on the left and right. After it is opened, the throttle body 1 can be placed inside the connector 4. The arcuate body The shap...

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Abstract

The invention discloses a valve element recyclable type underwater throttle valve. A throttle valve body is mainly composed of two parts including a valve element assembly and a valve body assembly which are arranged in a splitting manner, wherein a cage sleeve arranged at the lower end of the valve body assembly is inserted into the valve body; a nut-screw rod mechanism capable of rotating leftwards and rightwards is formed by a screw rod shaft arranged on a connector, and rotary pivoting shafts which are arranged on the left and right parts of an arch-shaped body hoop respectively; a driver assembly of the valve element assembly is driven by a pressure cylinder assembly; the pressure cylinder assembly drives a ratchet of a ratchet mechanism arranged on a power shaft to rotate, and drives a driving gear and a driven gear arranged on the power shaft to rotate in an engaging manner; the driven gear drives a valve rod assembly to do linear reciprocating motion; a cage sleeve connected with the lower end of the valve rod assembly is provided with a plurality of flow through holes with different hole diameters. The throttle valve disclosed by the invention can be used for accurately controlling rotary amount through stepping type rotation of the driving cylinder and the ratchet, so that the control precision is greatly improved, and the pressure of fluid of a pipeline basically keeps in a set range.

Description

Technical field [0001] The invention relates to a throttle valve for controlling the flow (pressure) of a pipeline, in particular an underwater throttle valve with a recoverable valve core, which is mainly used to adjust or control the flow (pressure) of the liquid in the pipeline. Background technique [0002] In offshore oil exploitation, the Christmas tree, the production pipeline, and the oil pipeline are all buried (layed) underwater. Due to the different formation parameters of each well, the pressure of the liquid (fluid) entering the pipeline from the Christmas tree is also quite different. , In order to merge the fluids of each well into the same manifold, the pressure of the liquid (fluid) entering each sub-pipeline needs to be adjusted so that the fluid pressure of each sub-pipeline entering the main pipeline is basically the same to ensure the fluid pressure of the main pipeline It is basically constant within the setting range to prevent pressure fluctuations outside...

Claims

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Application Information

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IPC IPC(8): F16K31/12F16K31/60F16K47/04F16K37/00
CPCF16K31/12F16K31/60F16K37/0075F16K47/04
Inventor 李荣石静林彩明龚光辉黄荣吉谭双妮张峰杜振伟
Owner CHONGQING QIANWEI SCI & TECH GRP
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