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Micro-open-type safety valve displacement test system and test method

A testing system and safety valve technology, which is applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve problems such as the lack of precise measurement technology for the discharge performance of micro-opening safety valves, and ensure measurement accuracy and measurement accuracy, the effect of ensuring accuracy

Active Publication Date: 2017-06-20
HEFEI GENERAL MACHINERY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A scientific and reasonable design of the test device is the prerequisite for accurately testing the performance of the safety valve. There is no accurate measurement technology for the discharge performance of the micro-opening safety valve in the prior art.

Method used

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  • Micro-open-type safety valve displacement test system and test method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like figure 1 As shown, the test system includes an air storage tank 10, a water storage tank 20, a test container 30, a sump 60 and a weighing system for measuring the weight of water entering the sump 60, and the test container 30 is connected to There is a branch pipe 31 for installing the valve under test 40, the valve under test 40 is provided with a valve opening height detector, the gas outlet of the gas storage tank 10 communicates with the water storage tank 20, and the water storage tank 20 The water outlet is communicated with the test container 30, the water outlet of the tested valve 40 is connected to the sump 60, the gas in the gas storage tank 10 enters the water storage tank 20 and the water storage tank 20 The water in the test container 30 is continuously pumped into the test container 30 until the water is discharged through the water outlet of the tested valve 40 . The weighing system is an electronic scale 90, and the valve opening height detector...

Embodiment 2

[0040] The test method based on the above-mentioned test system comprises the following steps:

[0041] S1, start the air compressor 70, open the on-off valve three 71, close the on-off valve one 11, the compressed air enters the air storage tank 10 through the pipeline until the pressure in the air storage tank 10 reaches the test requirements, then close the air Compressor 70 and switching valve 3 71;

[0042] S2, close on-off valve two 21, open on-off valve four 82, and turn on water pump 81 until the water level in the water storage tank 20 reaches the test requirements, then close the water pump 81 and on-off valve four 82;

[0043] S3. Simultaneously open the on-off valve one 11 and on-off valve two 21, and the medium water in the water storage tank 20 is pressed into the test container 30 by the compressed air entering the water storage tank 20 until the water passes through the The measured valve 40 overflows; the measured data of the displacement sensor 50 and the el...

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Abstract

The invention relates to a micro-open-type safety valve displacement test system and a test method. The test system comprises a gas storage tank, a water storage tank, a test container, a sump and a weighing system used for measuring the weight of water entering the sump. The test container is communicated with a branch pipe used for mounting a tested valve. A valve opening height detector is arranged on the tested valve. The gas outlet of the gas storage tank is communicated with the water storage tank. The water outlet of the water storage tank is communicated with the test container. The water outlet of the tested valve is connected with the sump. Gas in the gas storage tank enters the water storage tank to continuously feed water in the water storage tank into the test container until water is discharged through the water outlet of the tested valve. According to the invention, for the micro-open-type safety valve, incompressible water is used as a test medium to ensure that only water flow through the tested valve; and the displacement of the tested valve can be accurately measured.

Description

technical field [0001] The invention belongs to the technical field of safety valve testing, and in particular relates to a displacement testing system and a testing method of a micro-opening type safety valve. Background technique [0002] The safety valve is a valve that opens and closes automatically by the force of the medium, and is usually used as the final protection device for pressure-bearing equipment. The opening performance and discharge performance of the safety valve are the main factors that must be considered when selecting a safety valve. At this stage, the performance of the safety valve is mainly obtained through the test of the test device. A scientific and reasonable design of the test device is the premise of accurately testing the performance of the safety valve. There is no accurate measurement technology for the discharge performance of the micro-opening safety valve in the prior art. Contents of the invention [0003] In order to solve the above ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 张继伟王剑黄健彭林雷艳范宜霖胡春艳
Owner HEFEI GENERAL MACHINERY RES INST
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