Pipe bursting shutoff valve

A shut-off valve and pipe burst technology, which is applied in the field of shut-off valves, can solve the problems of difficulty in realizing the adjustment of the control flow size and the like, and achieve the effect of reliable structure.

Active Publication Date: 2013-10-16
CHINA THREE GORGES CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. Because the weight relies on gravity to function, the valve must be arranged horizon

Method used

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  • Pipe bursting shutoff valve
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  • Pipe bursting shutoff valve

Examples

Experimental program
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Effect test

Example Embodiment

[0021] Such as figure 1 In, a blast pipe shutoff valve includes a valve body 1 arranged on a pipe body 15 to communicate with the inside of the pipe body 15. The blast pipe shutoff valve further includes a control chamber 2, a valve shaft 9, and the valve shaft 9 in turn. The first elastic component on the upper part, the diaphragm piston 10, the valve disc 8, the control chamber 2 is connected with the valve body 1, the valve shaft 9 passes through the control chamber 2 and enters the valve body 1, and the diaphragm piston 10 is provided with In the control chamber 2, the control chamber 2 is rigidly connected with the diaphragm piston 10, and the chamber system 2 is divided into an independent upper chamber and a lower chamber. The valve disc 8 is arranged in the valve body 1, and the lower chamber communicates with the lower chamber. The tube 11 communicates with the tube body 1. The first elastic component includes a spring 6, a screw rod 3, a pressure plate 4, a baffle 5, a...

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PUM

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Abstract

A pipe bursting shutoff valve comprises a valve body which is arranged on a pipe body and communicated with the inner portion of the pipe body. The pipe bursting shutoff valve further comprises a control cavity, a valve shaft, a first elastic component, a diaphragm piston and a valve disc, the first elastic component, the diaphragm piston and the valve disc are arranged on the valve shaft in sequence, the control cavity is connected with the valve body, the valve shaft penetrates through the control cavity to enter the valve body, the diaphragm piston is arranged inside the control cavity, the control cavity is in rigid connection with the diaphragm piston, the control cavity is divided into an independent upper chamber and an independent lower chamber, the valve disc is arranged inside the valve body, the lower chamber is communicated with the pipe body through a lower chamber through pipe, the first elastic component can drive the valve shaft to move along the central line of the valve shaft after being stressed and deformed, and the movement of the valve shaft can enable the diaphragm piston to be deformed in the control cavity to change the size of the upper chamber and the size of the lower chamber, and meanwhile can drive the valve disc to move in the valve body and the pipe body. The pipe bursting shutoff valve has the advantages of being capable of adapting to the normal change of pressure in a pipeline and being mounted by adopting any angle.

Description

Technical field [0001] The invention relates to a shutoff valve, in particular to a burst pipe shutoff valve. Background technique [0002] The large amount of fluid leakage caused by the burst pipe of a pressurized pipeline will cause greater losses to the production and life of people along the line. Relying on the self-controlled blast pipe shut-off valve can quickly move to full close or a certain degree of opening, minimize the consequences of fluid leakage in the leakage section, reduce secondary losses caused by accidents, and improve the safety of the pipe network And economy. [0003] The pipe burst shutoff valve is a device that can quickly detect and intercept fluid transportation after a pipe burst under pressure. It is suitable for various water supply pipelines such as urban water supply projects and industrial water supply projects. The hydraulically controlled pipe burst shutoff valve does not require electrical control, but only relies on the characteristics of t...

Claims

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Application Information

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IPC IPC(8): F16K17/06F16K17/10
Inventor 李鹏朱旭东
Owner CHINA THREE GORGES CORPORATION
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