CN107727388A - A kind of air valve flow testing system - Google Patents

A kind of air valve flow testing system Download PDF

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Publication number
CN107727388A
CN107727388A CN201711231955.8A CN201711231955A CN107727388A CN 107727388 A CN107727388 A CN 107727388A CN 201711231955 A CN201711231955 A CN 201711231955A CN 107727388 A CN107727388 A CN 107727388A
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CN
China
Prior art keywords
pressure
valve
air
module
electronic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711231955.8A
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Chinese (zh)
Inventor
叶玉龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG YULONG VEHICLE Co Ltd
Original Assignee
ZHEJIANG YULONG VEHICLE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHEJIANG YULONG VEHICLE Co Ltd filed Critical ZHEJIANG YULONG VEHICLE Co Ltd
Priority to CN201711231955.8A priority Critical patent/CN107727388A/en
Publication of CN107727388A publication Critical patent/CN107727388A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts

Abstract

The invention provides a kind of air valve flow testing system, belong to air valve technical field.It solves the problems, such as that measuring accuracy is low in existing air valve.The air valve includes inlet chamber and negative pressure cavity, including air inlet module, negative pressure module and PLC module, air inlet module is made up of origin and total gas pressure pressure regulator valve, negative pressure module is made up of vavuum pump and electric Proportion valve, total gas pressure pressure regulator valve is provided with electronic flowmeter, digital indication flow meter is installed on electronic flowmeter, low pressure gap sensor is provided between electronic flowmeter and inlet chamber, low pressure gap sensor is connected with PLC module, the port of export of electronic flow meter is provided with digital-display air pressure table, automatic pressure regulating device is provided between total gas pressure pressure regulator valve and electronic flowmeter, automatic pressure regulating device is controlled by PLC module, electronic proportioning valve is connected with the negative pressure cavity of air valve, electronic proportioning valve is controlled by PLC module, PLC module is controlled by touch-screen.The present invention has the advantages of improving measuring accuracy.

Description

A kind of air valve flow testing system
Technical field
The invention belongs to air valve technical field, is related to a kind of air valve, more particularly to a kind of air valve flow rate test system System.
Background technology
Air valve is a kind of Special valve for being used to prevent transient process decompression wave from making generation negative pressure in pipe.It is generally installed In pipeline normal operation, flowing pressure is relatively low, during transient flow, it is possible to produce the high point position of column separation.Work as pipe Air is sucked in road during pressure subatmospheric, and air is discharged when pressure rises above atmospheric pressure in pipeline.It had been vented Cheng Zhong, when liquid in pipe is full of pipeline, valve can be closed automatically, not allow liquid to leak into air.
In order to ensure the quality of air valve, it is necessary to it is tested after manufacture, because of discharge characteristic so as to can not protect The measuring accuracy and testing efficiency of air valve are demonstrate,proved, and measuring accuracy and testing efficiency are low, lengthen the testing time of air valve, and Increase the cost of test.
The content of the invention
The purpose of the present invention is to be directed to the above-mentioned problems in the prior art, there is provided one kind effectively improves measuring accuracy With the air valve flow testing system of testing efficiency.
The purpose of the present invention can be realized by following technical proposal:A kind of air valve flow testing system, the air valve Including inlet chamber and negative pressure cavity, it is characterised in that including air inlet module, negative pressure module and PLC module, described air inlet module by Origin and total gas pressure pressure regulator valve composition, described negative pressure module are made up of vavuum pump and the electric Proportion valve being connected with vavuum pump, Described total gas pressure pressure regulator valve is provided with coupled logical electronic flowmeter, and is provided with electronic flowmeter and can show air-flow The digital indication flow meter of size, the port of export of described electronic flowmeter is connected with the inlet chamber of air valve, and electronic flowmeter Low pressure gap sensor is provided between inlet chamber, the low pressure gap sensor is connected with PLC module, and described electronic flow meter goes out Mouth end is also equipped with showing the digital-display air pressure table of air pressure size, is set between described total gas pressure pressure regulator valve and electronic flowmeter There is the automatic pressure regulating device of controllable air pressure size, and the automatic pressure regulating device is controlled by PLC module, described electronic proportioning valve It is connected with the negative pressure cavity of air valve, the electronic proportioning valve is controlled by PLC module, and described PLC module is external by one Touch-screen controls.
In a kind of above-mentioned air valve flow testing system, profit is provided between described source of the gas and total gas pressure pressure regulator valve Separator.
Compared with prior art, this air valve flow testing system is set between total gas pressure pressure regulator valve and electronic flowmeter There is the automatic pressure regulating device of controllable air pressure size, make to improve measuring accuracy and testing efficiency in test process.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of air valve flow testing system.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described, But the present invention is not limited to these embodiments.
As shown in figure 1, a kind of this air valve flow testing system, the air valve includes inlet chamber and negative pressure cavity, including enters Gas module, negative pressure module and PLC module, air inlet module are made up of origin and total gas pressure pressure regulator valve, negative pressure module by vavuum pump and The electric Proportion valve composition being connected with vavuum pump, total gas pressure pressure regulator valve are provided with coupled logical electronic flowmeter, and electronics The digital indication flow meter of air-flow size can be shown by being provided with flowmeter, the port of export of electronic flowmeter and the inlet chamber phase of air valve Connection, and low pressure gap sensor is provided between electronic flowmeter and inlet chamber, the low pressure gap sensor is connected with PLC module, The port of export of electronic flow meter is also equipped with showing the digital-display air pressure table of air pressure size, total gas pressure pressure regulator valve and electronic flowmeter it Between be provided with the automatic pressure regulating device of controllable air pressure size, and the automatic pressure regulating device is controlled by PLC module, electronic proportioning valve It is connected with the negative pressure cavity of air valve, the electronic proportioning valve is controlled by PLC module, and PLC module passes through an external touch-screen Control.
Further describe in detail, for more preferable oil-water separation, oil water separator is provided between source of the gas and total gas pressure pressure regulator valve.
A kind of operation principle of air valve flow testing system:Air enters oil water separator from source of the gas and carries out profit point From, then electronic flowmeter entered by total gas pressure pressure regulator valve, finally enter air combination valve inlet chamber, the control of total gas pressure pressure regulator valve Into the air-flow size of testboard, electronic flowmeter measurement passes through the air-flow size of product, while the flow value of detection is fed back Show to PLC and on the touchscreen;Low pressure gap sensor is in the detection air combination valve air inlet of electronic flowmeter outlet side The air pressure of chamber, then the result detected is fed back into PLC;PLC is fast according to the air inlet pressure force value control automatic pressure regulating device set Speed is shunted the air pressure of electronic flowmeter, makes the air pressure of air combination valve inlet chamber be adjusted to set atmospheric pressure value rapidly; The negative pressure value of each node of air combination valve is inputted on touch-screen;PLC will according to given negative pressure value control electric Proportion valve Negative pressure caused by vavuum pump converts output and gives air combination valve negative pressure cavity on request.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Term is waited although more having used herein, is not precluded from the possibility using other terms.Use these arts Language is used for the purpose of more easily describing and explaining the essence of the present invention;Being construed as any additional limitation is all Disagreed with spirit of the present invention.

Claims (2)

1. a kind of air valve flow testing system, the air valve includes inlet chamber and negative pressure cavity, it is characterised in that including air inlet mould Block, negative pressure module and PLC module, described air inlet module by origin and total gas pressure pressure regulator valve form, described negative pressure module by Vavuum pump and the electric Proportion valve composition being connected with vavuum pump, described total gas pressure pressure regulator valve are provided with coupled logical electronics Flowmeter, and the digital indication flow meter that can show air-flow size is installed on electronic flowmeter, the outlet of described electronic flowmeter End is connected with the inlet chamber of air valve, and low pressure gap sensor is provided between electronic flowmeter and inlet chamber, and the low voltage difference passes Sensor is connected with PLC module, and the port of export of described electronic flow meter is also equipped with showing the digital-display air pressure table of air pressure size, The automatic pressure regulating device of controllable air pressure size is provided between described total gas pressure pressure regulator valve and electronic flowmeter, and this is automatic Regulator is controlled by PLC module, and described electronic proportioning valve is connected with the negative pressure cavity of air valve, the electronic proportioning valve by PLC module is controlled, and described PLC module is controlled by an external touch-screen.
A kind of 2. air valve flow testing system according to claim 1, it is characterised in that described source of the gas and total gas pressure Oil water separator is provided between pressure regulator valve.
CN201711231955.8A 2017-11-30 2017-11-30 A kind of air valve flow testing system Pending CN107727388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711231955.8A CN107727388A (en) 2017-11-30 2017-11-30 A kind of air valve flow testing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711231955.8A CN107727388A (en) 2017-11-30 2017-11-30 A kind of air valve flow testing system

Publications (1)

Publication Number Publication Date
CN107727388A true CN107727388A (en) 2018-02-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711231955.8A Pending CN107727388A (en) 2017-11-30 2017-11-30 A kind of air valve flow testing system

Country Status (1)

Country Link
CN (1) CN107727388A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109084968A (en) * 2018-05-29 2018-12-25 合肥通用机械研究院有限公司 A kind of air valve dynamic performance and testing and test method

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CN206609609U (en) * 2017-04-01 2017-11-03 天津市宝鹏机械制造有限公司 The detection device of valve
CN106885694A (en) * 2017-04-12 2017-06-23 株洲南方阀门股份有限公司 A kind of air valve performance testing device and air valve performance test methods
CN107014598A (en) * 2017-04-21 2017-08-04 合肥通用机械研究院 A kind of air valve air inlet performance testing device and method of testing
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109084968A (en) * 2018-05-29 2018-12-25 合肥通用机械研究院有限公司 A kind of air valve dynamic performance and testing and test method
CN109084968B (en) * 2018-05-29 2020-11-13 合肥通用机械研究院有限公司 Air valve dynamic performance testing device and testing method

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Application publication date: 20180223