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Low-temperature stop valve

A shut-off valve, low temperature technology, applied in valve details, diaphragm valves, valve devices, etc., can solve the problems of the shut-off valve being unable to adjust the shut-off conduction effect, poor practicability, etc., to improve the working efficiency of the pump fluid, convenient switching, excessive smooth effect

Inactive Publication Date: 2020-12-15
周联可
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing cut-off valve cannot adjust the effect of cut-off and conduction according to the temperature, and a series of electrical components such as a pressure sensor are required to achieve the effect, which is poor in practicability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] Embodiment: When the device is working, the valve body 1 is fed with water flow, and the valve rod 2 can control the opening of the elastic valve ball 3 through the hydraulic control device 5, thereby controlling the opening and closing of the valve, avoiding Remove the time-consuming and labor-intensive problems caused by manual control; the thermal expansion and cold contraction air terminal 9 is connected to the input terminal that needs to be adjusted according to the temperature. At this time, the thermal expansion and cold contraction properties will be reflected by the air. The pressure increases and presses the upper extruding piece 52 downward. At this time, the upper extruding piece 52 moves downward and shrinks the space of the folded part 53, and then the folded part 53 pushes the lower extruded piece to move, so that the inside of the square housing The space shrinks, and the pressure control liquid in the square shell is pumped into the interior of the valv...

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Abstract

The invention discloses a low-temperature stop valve. The low-temperature stop valve comprises a valve body and is characterized in that an elastic valve ball is arranged in the valve body, the top ofthe elastic valve ball is connected with a valve rod in a through mode, the top of the valve rod is connected with a connecting pipe in a through mode, one end of the connecting pipe is connected with a hydraulic control device, and the hydraulic control device comprises a square shell; a thermal expansion and cold contraction air end is connected to the top of the square shell in a through mode,the square shell is filled with control liquid, a lower extrusion sheet is slidably installed on the inner wall of the square shell, the lower extrusion sheet makes contact with the top face of the control liquid, and a folding part is connected to the top of the lower extrusion sheet; and the top of the folding part is connected with an upper extrusion sheet, the upper extrusion sheet is connected with the thermal expansion and cold contraction air end in a through mode, and clamping grooves are evenly formed in the inner walls of the two sides of the hydraulic control device. The low-temperature stop valve has the characteristics of being high in practicality and capable of being controlled according to the temperature.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a low temperature cut-off valve. Background technique [0002] Globe valve is a kind of valve that can make the pipeline cut off or pass through. It is widely used in industrial production and daily life. Because of its simple structure and good general performance, it is widely favored by industrial practitioners. [0003] However, the existing cut-off valve cannot adjust the effect of cut-off and conduction according to the temperature, and a series of electrical components such as a pressure sensor are required to achieve the effect, which is poor in practicability. Therefore, it is necessary to design a low temperature cut-off valve with strong practicability and temperature control. Contents of the invention [0004] The purpose of the present invention is to provide a low-temperature cut-off valve to solve the problems raised in the above-mentioned background technology. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K7/12F16K7/10F16K27/02F16K31/12F16K31/68F16K31/60F17D1/14F17D3/01
CPCF16K7/10F16K7/12F16K27/0236F16K31/002F16K31/12F16K31/60F17D1/14F17D3/01
Inventor 周联可
Owner 周联可
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