Straight-through piston-driven intelligent flow control valve

A technology of flow control valve and piston drive, which is applied in the direction of functional valve type, device for absorbing fluid energy of the valve, balance valve, etc. Turbulent flow and other problems, to achieve the effect of not afraid of scaling, preventing cavitation, and not easy to jam

Active Publication Date: 2021-02-02
TIANJIN TANGGU NO 1 VALVE FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The flow control valves currently used include DC piston-driven flow control valves or DC diaphragm-driven flow control valves, but no matter whether the DC piston-driven flow control valve or the DC diaphragm-driven flow control valve, it will be easy when the medium fluid flows through. Turbulent flow is generated, and the high-speed flow of high-pressure water flow may cause cavitation and vibration, which will damage the valve body and pipeline; and the above-mentioned flow control valve is also difficult to achieve the function of pre-setting and automatically adjusting the parameter value of the pipeline medium

Method used

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Embodiment Construction

[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.

[0036] The invention will be described in detail below with reference to the accompanying drawings and examples.

[0037] The invention mainly utilizes the...

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Abstract

The invention provides a straight-through piston-driven intelligent flow control valve, which includes a control valve body, a Pitot tube flow measurement system, and a control pilot valve; the inside of the control valve body is provided with an axisymmetric flow channel, and the driving piston passes through the valve stem. Connect the opening and closing parts of the squirrel cage grille; the driving piston separates the valve inner cylinder into an upper control chamber and a lower control chamber; the upper control chamber and the lower control chamber are respectively connected to the control pilot valve through the control pipeline, and the control guide The valve connects the static and dynamic pressure lines of the Pitot tube flow measurement system. In the present invention, through the intelligent self-control flow control pilot valve, Pitot tube flow measurement system, control pipeline, and control ball valve, the pressure difference between the upper and lower chambers is adjusted and controlled by the pressure of the medium itself, and the movement of the driving piston is controlled to drive the opening and closing of the squirrel cage grille. The parts are used for flow control and adjustment operation, with accurate action and reliable performance.

Description

technical field [0001] The invention belongs to the field of valves, in particular to a straight-through piston-driven intelligent flow control valve. Background technique [0002] The flow control valves currently used include DC piston-driven flow control valves or DC diaphragm-driven flow control valves, but no matter whether the DC piston-driven flow control valve or the DC diaphragm-driven flow control valve, it will be easy when the medium fluid flows through. Turbulent flow is generated, and the high-speed flow of high-pressure water flow may cause cavitation and vibration, which will damage the valve body and pipeline; and the above-mentioned flow control valve is also difficult to realize the function of presetting and automatically adjusting the parameter value of the pipeline medium. Contents of the invention [0003] The purpose of the present invention is to provide a straight-through piston-driven intelligent flow control valve, which can intelligently and au...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/22F16K47/02F16K25/00
CPCF16K17/22F16K25/00F16K47/02
Inventor 洪荣坤洪永金刘杰张正龙
Owner TIANJIN TANGGU NO 1 VALVE FACTORY
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