Unlock instant, AI-driven research and patent intelligence for your innovation.

Self-operated pressure range flow valve and control method thereof

A self-operated, flow-through valve technology, applied in sliding valves, valve details, valve devices, etc., can solve problems such as troublesome installation, danger, and large energy consumption

Pending Publication Date: 2017-05-17
FUJIAN PROVINCE DATONG RECIPROCITY VALVE CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in some places, it is necessary to use a flow valve that can work in a certain pressure range. The existing pressure range flow valve needs an external power supply and a secondary instrument. Work in an airless place, otherwise it is dangerous

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-operated pressure range flow valve and control method thereof
  • Self-operated pressure range flow valve and control method thereof
  • Self-operated pressure range flow valve and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0042] Please refer to Figure 1 to Figure 7, a self-operated pressure interval circulation valve, comprising a valve body 1, a valve seat 3, a valve core 4, a valve stem 7 and a valve cover 12, the valve seat 3 is fixedly arranged in the valve body 1, and the valve core 4 and Valve seat 3 cooperates, and described bonnet 12 is fixedly connected on the control end of valve body 1, and the upper end of described valve stem 7 passes through the control end of valve body 1 and bonnet 12 successively, and the lower end of described valve stem 7 Drive the valve core 4 to move up and down to open or close the valve. The upper end of the valve cover 12 is connected with a differential pressure valve 21 for driving the valve stem 7. The inlet end of the valve body 1 is...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a self-operated pressure range flow valve and a control method thereof. The valve comprises a valve body, a valve seat, a valve element, a valve rod and a valve deck, wherein the upper end of the valve deck is connected with a differential pressure valve for driving the valve rod; a valve front small hole is formed in the inlet end of the valve body; a valve rear small hole is formed in the outlet end of the valve body; the valve front small hole controls the differential pressure valve via a first one-way valve to drive the valve rod to move upwards so as to open the valve; the opening pressure of the first one-way valve is greater than zero; the differential pressure valve controls the valve rod via a second one-way valve to move downwards so as to close the valve; the opening pressure of the second one-way valve is greater than that of the first one-way valve and is less than the maximum pressure of connection between the valve and a pipeline; and the differential pressure valve discharges a medium via the valve rear small hole. The self-operated pressure range flow valve does not need an external power source or a secondary instrument, adopts the medium of the valve to open and close the valve when the pipeline pressure range changes to further realize circulation and separation of the system pipeline, can be used in a site without electricity or gas, and is convenient, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a self-operated pressure interval circulation valve and a control method thereof. Background technique [0002] At present, in some places, it is necessary to use a flow valve that can work in a certain pressure range. The existing pressure range flow valve needs an external power supply and a secondary instrument. It is dangerous to work in an airless place. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a self-operated pressure interval flow valve and its control method. The flow valve does not require external energy and secondary instruments, and relies on its own medium to realize the change of the pipeline pressure interval. The opening and closing of the valve at the same time, and then realize the circulation and isolation of the system pipeline. [00...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16K3/314F16K27/12F16K27/04F16K31/122F16K41/04
CPCF16K3/314F16K27/041F16K27/12F16K31/1221F16K41/04
Inventor 焦晓伟赵赞邹文静
Owner FUJIAN PROVINCE DATONG RECIPROCITY VALVE CO LTD