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Checking method and testing system for stop valve rigidity

A detection method, the technology of the stop valve, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, measurement device, mechanical component test, etc., can solve the problems of no detection means, deformation leakage, torsion force and system pressure shock, etc. Achieve the effect of improving the quality of the whole machine and reducing the after-sales failure rate

Inactive Publication Date: 2018-04-27
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The shut-off nut must be tightened during the production process test and after-sales installation of the globe valve. During the tightening process of the shut-off nut, the valve body of the globe valve is subjected to great torsion and system pressure impact. If the rigidity of the valve body is poor, it is easy to cause the valve body to break and crack. , deformation, leakage and other major after-sales quality problems
However, at present, there is no detection method in the industry and on the market for the rigidity of the globe valve (that is, the anti-deformation ability of the valve body).

Method used

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  • Checking method and testing system for stop valve rigidity
  • Checking method and testing system for stop valve rigidity
  • Checking method and testing system for stop valve rigidity

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Embodiment Construction

[0027] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0028] figure 1 Shown is a schematic diagram of the stop valve rigidity detection system in one of the embodiments of the present invention. The stop valve rigidity detection system includes a workbench (not shown in the figure), an air source 1, an air intake pipeline and a leak detection device 6. Said workbench is used for fixing shut-off valve 7. The gas source 1 is used to provide the high-pressure gas required for the test, and the gas source 1 has a gas outlet. Preferably, the gas source 1 is a nitrogen cylinder. The air inlet pipeline has an air inlet interface for connecting with the air outlet of the air source 1 and an air outlet interface for connecting with the connection end 7d of the shut-off valv...

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Abstract

The invention discloses a method and system for detecting the rigidity of a cut-off valve. The method for detecting the rigidity of a stop valve includes the following steps: a. fixing the stop valve on a tooling table; b. applying a Tighten the spool with the set tightening torque of the spool; c. Apply high-pressure gas to the shut-off valve from the connecting end of the shut-off valve; d. Apply the set tightening torque of the union nut to the union nut of the shut-off valve Tighten the union nut; e. Detect whether the fluorine injection mouth end of the shut-off valve leaks and / or whether the valve body of the shut-off valve is broken or deformed. The rigidity detection method of the stop valve provided by the present invention can effectively detect the anti-deformation ability of the stop valve body, thereby providing effective test data and perfecting the establishment of the stop valve enterprise standard; moreover, it can improve the quality of the whole machine and reduce the after-sales failure of the stop valve Rate.

Description

technical field [0001] The invention relates to valves, in particular to a method and system for detecting the rigidity of a cut-off valve. Background technique [0002] The shut-off nut must be tightened during the production process test and after-sales installation of the globe valve. During the tightening process of the shut-off nut, the valve body of the globe valve is subjected to great torsion and system pressure impact. If the rigidity of the valve body is poor, it is easy to cause the valve body to break and crack. , deformation leakage and other major after-sales quality problems. However, at present, there is no detection method in the industry and on the market for the rigidity of the globe valve (that is, the anti-deformation ability of the valve body). Contents of the invention [0003] In view of the above-mentioned current state of the art, the technical problem to be solved by the present invention is to provide a check valve rigidity detection method and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01M3/02
Inventor 董明景颜小林李明亮陈晓东
Owner GREE ELECTRIC APPLIANCES INC
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