A kind of test system and test method of LNG cylinder multifunctional valve for vehicle

A multi-functional valve and testing system technology, which is applied in the testing of mechanical components, testing of machine/structural components, liquid tightness measurement using liquid/vacuum degree, etc. It can solve the problems that the test cannot be completed normally

Inactive Publication Date: 2018-07-13
江南工业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The connection between the valves is fixed and inseparable. The valves are connected through the pipelines in the integrated valve body to complete their valve functions. When testing one of the valves, it must be affected by the performance of other valves. The test cannot be completed normally, which requires the design of a special device to meet the requirements of the integrated valve test

Method used

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  • A kind of test system and test method of LNG cylinder multifunctional valve for vehicle
  • A kind of test system and test method of LNG cylinder multifunctional valve for vehicle
  • A kind of test system and test method of LNG cylinder multifunctional valve for vehicle

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Embodiment Construction

[0066] A vehicle LNG gas cylinder multi-function valve testing system, including such as figure 1 The test fixture shown, as figure 2 The gaseous test system shown, as image 3 The liquid test system shown, as Figure 4 damper plug shown, and Figure 5 The shown multifunctional valve 20 etc. are formed.

[0067] Such as figure 1 As shown, the structure of the test tool is mainly composed of a platen 21, a circular mounting plate 22, a gas phase joint 23, a liquid inlet joint 24, and a liquid outlet joint 25. There are 3 sinks on the upper circular mounting plate 22. There are 6 threaded holes on the circumference for installing multi-function valves, and the lower three threaded joints are used to connect the test system.

[0068] Such as figure 2 Shown, gas test system is made up of gas cylinder 31, stop valve 32,38,39,42, pressure gauge 33,35,41, pressure reducing valve 34, thermometer 36, safety valve 37, small gas cylinder 40 forms. It is mainly used for testing t...

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Abstract

The invention discloses a multifunctional valve testing system for LNG cylinders used in vehicles. The test system includes a test tool, a multi-function valve mounted on the test tool; it also includes a gas test system for performing a gas test on the corresponding valve port of the multi-function valve and a liquid test system for a liquid test; the gas test system includes Air intake test pipeline and gas outlet test pipeline; said air intake test pipeline is equipped with pressure reducing valve, safety valve, multiple shut-off valves and multiple pressure gauges, and this intake test pipeline also passes through the small gas bottle branch pipeline equipped with shut-off valve It is communicated with a small gas bottle; a pressure gauge and a stop valve are installed on the gas outlet test pipeline; the liquid state test system includes a liquid inlet test pipeline and a liquid outlet test pipeline; a shut-off valve and a pressure gauge are installed on the liquid inlet test pipeline A pressure gauge and a shut-off valve are installed on the outlet liquid test pipeline. The invention can conveniently complete various tests of different valves in the multifunctional valve.

Description

technical field [0001] The invention relates to a testing system and a testing method for a multifunctional valve of an LNG gas cylinder for vehicles, and is especially suitable for testing a multifunctional valve of a LNG gas cylinder for vehicles with a conversion joint, and belongs to the technical field of detection and application of LNG valves. Background technique [0002] The liquefied natural gas cylinder is a cryogenic liquid insulated cylinder. The liquid filling, liquid supply, safety release and pressure regulation of the liquefied natural gas cylinder must be realized through various control valves. In the background technology, at present, domestic and foreign liquefied natural gas cylinder manufacturers all use independent valves in the installation of their control valves, that is, the control valves are made into independent valves according to different performance requirements, such as internal check valves and overflow valves. , economic throttle valve, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/02G01M13/00
Inventor 王健李崇华石钊谢治李泽平易文
Owner 江南工业集团有限公司
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