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Large flow stop valve assembly and stop valve control method

A cut-off valve and large flow technology, applied in the direction of valve lift, valve details, valve device, etc., can solve the problems of reducing the driving energy of the power source, the complex structure of power opening and closing, and the difficulty of setting the power source, etc., to achieve simplified structure and Assembly, simple structure, low cost effect

Pending Publication Date: 2019-03-19
陈汉保 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a large flow shut-off valve assembly and shut-off valve in order to solve the problems of high working intensity during manual opening and closing, complex structure and difficult power source setting in power opening and closing of the existing large flow shut-off valve. The control method can not only realize the power opening and closing of the stop valve, thereby reducing the work intensity, but also significantly reduce the driving energy requirements of the power source, so that it is convenient to realize the power opening and closing through a simple mobile power source such as a battery

Method used

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  • Large flow stop valve assembly and stop valve control method
  • Large flow stop valve assembly and stop valve control method
  • Large flow stop valve assembly and stop valve control method

Examples

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Effect test

Embodiment 1

[0030] Example 1. If figure 1 As shown, a large flow cut-off valve assembly includes a cut-off valve 1, the cut-off valve includes a valve housing 11, a valve plate 12 arranged in the valve housing, an input port 111 is provided at one end of the valve housing, and an output port 112 is provided at the other end, A valve hole 113 connected to the input port and the output port is provided in the valve housing corresponding to the position of the valve plate. A valve stem 13 that can move axially is arranged outside the valve housing. One end of the valve rod extends into the valve housing and is connected with the valve plate. The other end of the rod protruding from the valve housing is connected with a valve rod control mechanism. When the valve stem control mechanism moves the valve plate down to the lower position through the valve stem, when the valve plate abuts against and seals the valve hole, the channel between the input port and the output port is cut off, and the s...

Embodiment 2

[0042] Embodiment 2. A method for controlling a large flow shut-off valve, wherein the shut-off valve and the corresponding control mechanism such as figure 1 , figure 2 , image 3 As shown, it specifically includes the following steps:

[0043] a. Lead the fluid on the input port side and the output port side of the shut-off valve connected to the fluid delivery pipeline into two closed pressure chambers of a differential pressure drive device through the pipeline, and set a switchable pressure chamber on the pipeline. The pipeline switching device for the flow direction, the pipeline switching device can adopt a three-position four-way solenoid valve. When the solenoid valve is in the first working position, the fluid on the input port side is introduced into the first pressure chamber of the differential pressure drive device through the solenoid valve, and the fluid on the output port side is introduced into the second pressure chamber of the differential pressure drive...

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Abstract

The invention discloses a large flow stop valve assembly and a stop valve control method. A stop valve comprises a valve shell and a valve plate, a valve hole communicating with input and output portsis formed in the position, corresponding to the valve plate, in the valve shell, one end of a valve rod extends into the valve shell to be connected with the valve plate, the other end of the valve rod is connected with a valve rod control mechanism, the valve rod control mechanism includes a differential pressure driving device and a pipeline switching device, fluid of the input and output portsof the stop valve is selectively guided into two pressure cavities of the differential pressure driving device through the pipeline switching device, a pressure difference is formed by pressure of the fluid inside the two pressure cavities, the valve rod of the stop valve is further driven to rise or fall, and therefore the stop valve enters a conducting state or a stopping state. By means of thelarge flow stop valve assembly and the stop valve control method, power opening and closing of the stop valve can be achieved, the working intensity is reduced, the requirement for drive energy of apower source can be significantly reduced, and power opening and closing through simple movable power sources such as a storage battery are facilitated.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a large-flow shut-off valve and a control method for the shut-off valve. Background technique [0002] Existing shut-off valves generally include a housing with an input port and an output port, a valve hole and a valve plate arranged in the housing, a valve stem connected to the valve plate is arranged on the housing, and the valve stem is threadedly connected to the housing. A control handle is arranged at one end of the valve stem protruding from the housing. When we turn the control handle, the valve stem can drive the valve plate to move up and down. When the valve plate blocks the valve hole, the stop valve is in the cut-off state; when the valve plate leaves the valve hole, the stop valve is in the conduction state. For some small flow shut-off valves with small apertures, it will not take too much effort to open and close the shut-off valve by turning the control handle....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/38F16K31/128
CPCF16K1/38F16K31/128
Inventor 陈汉保
Owner 陈汉保
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