CN106872155A - A kind of performance of exhaust valve test system and method for testing - Google Patents

A kind of performance of exhaust valve test system and method for testing Download PDF

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Publication number
CN106872155A
CN106872155A CN201710041529.1A CN201710041529A CN106872155A CN 106872155 A CN106872155 A CN 106872155A CN 201710041529 A CN201710041529 A CN 201710041529A CN 106872155 A CN106872155 A CN 106872155A
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China
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valve
pressure
branch line
test
section pipeline
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CN201710041529.1A
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CN106872155B (en
Inventor
张继伟
黄健
王剑
彭林
范宜霖
雷艳
张绍华
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Hefei General Machinery Research Institute Co Ltd
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Hefei General Machinery Research Institute Co Ltd
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    • 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 present invention relates to a kind of performance of exhaust valve test system and method for testing.Wherein test system includes the compressor, gas storage section pipeline, flow measuring section pipeline and the test container that are sequentially connected along gas flow direction, and main valve one is provided between compressor and gas storage section pipeline;Multiple air accumulators being set up in parallel are connected with gas storage section pipeline, switch valve one is provided between air accumulator and gas storage section pipeline;Flow measuring section pipeline includes the branch line that multiple bores are variant and are set up in parallel, and each branch line import is provided with switch valve two, the outlet of each branch line and is provided with switch valve three, and pressure-regulating valve and flowmeter are additionally provided with the branch line;The installing pipe for installing tested valve is connected with test container, pressure sensor one is provided with tested valve import.Performance of exhaust valve pilot system of the present invention has scalability, and the test of follow-up bigger specification air bleeding valve can be supported by increasing the number of the air accumulator number or branch line.

Description

A kind of performance of exhaust valve test system and method for testing
Technical field
The invention belongs to air bleeding valve field, a kind of performance of exhaust valve test system and method for testing are specifically related to.
Background technology
Air bleeding valve is typically mounted on water supply line peak, for the gas separated out in water in discharge line, in order to avoid pipeline The loss of flood peak that internal cause accumulated gases are caused, air bleeding valve is to ensure water supply line smooth in exhaust, the critical component of safe operation.It is existing There is the range ability of flowmeter in performance of exhaust valve test device single, the air bleeding valve that can only be directed to specified caliber specification is surveyed Examination.Therefore, those skilled in the art need offer one kind badly and have scalability and can be directed to multiple caliber air bleeding valve progressive The system that can be tested.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provide a kind of performance of exhaust valve test system with scalability with And method of testing.
In order to realize the purpose of the present invention, present invention employs following technical scheme:
A kind of performance of exhaust valve test system, including be sequentially connected along gas flow direction compressor, gas storage section pipeline, Flow measuring section pipeline and test container, main valve one is provided between the compressor and gas storage section pipeline;The gas storage section pipe Multiple air accumulators being set up in parallel are connected with road, switch valve one is provided between the air accumulator and gas storage section pipeline;The stream Measurement section pipeline includes the branch line that multiple bores are variant and are set up in parallel, and each branch line import is provided with switch valve 2nd, each branch line outlet is provided with switch valve three, and pressure-regulating valve and flowmeter are additionally provided with the branch line;It is described The installing pipe for installing tested valve is connected with test container, pressure sensor one is provided with the tested valve import.
Further, main valve two is provided between the gas storage section pipeline and flow measuring section pipeline, on the test container It is additionally provided with pressure sensor two and temperature sensor.
Further, be connected with the installing pipe of various caliber specifications on the test container, the installing pipe respectively with respectively The air bleeding valve for planting bore carries out Matching installation.
Further, the air accumulator is provided with pressure gauge, safety valve one and blowoff valve one, the test container connection There are safety valve two and blowoff valve two.
Further, the system also includes control unit and data acquisition unit, described control unit and the main valve First, switch valve one, main valve two, switch valve two, pressure-regulating valve, the control connection of switch valve three, the data acquisition unit and institute State flowmeter, pressure sensor one, pressure sensor two and temperature sensor connection, the data acquisition unit also with calculating Machine terminal is connected.
A kind of method of testing based on described performance of exhaust valve test system, comprises the following steps:
S1, close the main valve two, open main valve one and switch valve one, start the compressor, by compressor to Inflation in each air accumulator, after each air accumulator is full of, closes the switch valve one and main valve one;
S2, according to tested valve bore parameter, it is determined that the number of air accumulator, the number of branch line and mouth needed for experiment Footpath;
S3, the switch valve one for opening the main valve two and each air accumulator needed for experiment, branch line import needed for opening End switch valve two, pressure-regulating valve and port of export switch valve three, medium are introduced into branch line and flow into again after being flowed out through air accumulator Test container, while the data acquisition unit is to the flowmeter, pressure sensor one, temperature sensor, pressure sensor Two data are acquired;
S4, by adjust pressure-regulating valve change branch line in pressure, it is different exhaust pressure differences under measure multigroup number According to, the data acquisition unit by the data input terminal of collection processed and drawn the exhaust pressure difference of tested valve- Capacity curve.
The beneficial effects of the present invention are:
(1) present invention uses air as test(ing) medium, the multiple gas storage in parallel of gas storage section pipeline connection in pilot system Tank, can according to needed for tested valve caliber size is selected when performance test is done air accumulator number, it is to avoid the waste of resource;In addition The flow measuring section pipeline is composed in parallel by the different branch line of multiple bores, and each branch line sets different ranges Flowmeter, alternative turn-on flow rate test branch pipeline, realizes the combination of different range flow meters during test, all to meet The performance test of bore air bleeding valve.Heretofore described test chamber is compared compared with conventional test pipeline, can accurately simulate air First assemble the process discharged afterwards, the true running status with air bleeding valve in pipeline is more coincide, it is ensured that the accuracy of test. The switching motion of each main valve and switch valve is by control unit remote control in the present invention, flowmeter, pressure sensor one, The measurement data of pressure sensor two and temperature sensor is acquired by data acquisition unit, it is ensured that the system is operated Accuracy of measurement and measuring accuracy.Performance of exhaust valve pilot system of the present invention has scalability, can be described by increasing The number of air accumulator number or branch line supports the test of follow-up bigger specification air bleeding valve.
(2) pressure sensor one can detect the pressure P1 at tested valve import, the tested valve exit Pressure P2 is atmospheric pressure, and being detected by pressure sensor one can finally give tested valve inlet outlet pressure differential Δ P=P1-P2, The inlet outlet pressure differential Δ P is the exhaust pressure difference of tested valve.The flowmeter can be to the gas in flow rate test section pipeline Flow is detected, so as to obtain the capacity Q of tested valve.The pressure-regulating valve can be carried out to pressure in each branch line Regulation, so as to obtain multigroup exhaust pressure difference in state change to the state procedure of vent closure that air bleeding valve is opened from steam vent Corresponding capacity.
(3) when valve performance test is exhausted, the installing pipe that selection one of which caliber is matched with tested valve bore is come Tested valve, the i.e. present invention are installed the performance test process of multiple caliber air bleeding valve is met by setting the installing pipe of various calibers The need for, it is applied widely, also embody the present invention have scalability the characteristics of.
(4) safety valve one, safety valve two ensure that the security of test pipeline.The blowoff valve one, blowoff valve two Can be before test be carried out respectively by the debris discharge in air accumulator and test container, to improve the accurate of tested valve performance test Property, while also having the effect of protection test pipeline.The temperature sensor can be carried out in real time to the temperature in test container Detection, so as to test out temperature to being tested the influence degree of valve performance, this has to the temperature in use under air bleeding valve truth Directiveness effect.The pressure sensor two can be with the pressure change in probing test container.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
The implication marked in accompanying drawing is as follows:
The 122- main valves two of 11- compressor 12- gas storage section pipeline 121- main valves one
The 133- switch valves three of 13- flow measuring section pipeline 131- branch line 132- switch valves two
134- pressure-regulating valve 135- flowmeter 14- test container 141- installing pipes
The 144- temperature sensors of one 143- pressure sensors of 142- pressure sensors two
The 15- air accumulator 151- switch valves one of two 146- safety valves of 145- blowoff valves two
The 16- tested valves of one 154- blowoff valves of 152- pressure gauge 153- safety valves one
17- control unit 18- data acquisition unit 19- terminals
Specific embodiment
More specific detail is made to technical solution of the present invention with reference to embodiment:
Embodiment 1
As shown in figure 1, performance of exhaust valve test system includes the compression being sequentially connected along gas flow direction in the present invention Machine 11, gas storage section pipeline 12, flow measuring section pipeline 13 and test container 14, the compressor 11 and gas storage section pipeline 12 it Between be provided with main valve 1;Be connected with multiple air accumulators 15 being set up in parallel on gas storage section pipeline 12, the air accumulator 15 with Switch valve 1 is provided between gas storage section pipeline 12;The flow measuring section pipeline 13 includes that multiple bores are variant and arranged side by side The branch line 131 of setting, each import of branch line 131 is provided with switch valve 2 132, the outlet of each branch line 131 and is provided with Switch valve 3 133, is additionally provided with pressure-regulating valve 134 and flowmeter 135 on the branch line 131;The test container 14 On be connected with installing pipe 141 for installing tested valve 16, be provided with pressure sensor 1 at the import of the tested valve 16.
Main valve 2 122 is provided between the gas storage section pipeline 12 and flow measuring section pipeline 13, on the test container 14 It is additionally provided with pressure sensor 2 143 and temperature sensor 144.
Be connected with the installing pipe 141 of various caliber specifications on the test container 14, the installing pipe 141 respectively with it is various The air bleeding valve 16 of bore carries out Matching installation.
The air accumulator 15 is provided with pressure gauge 152, safety valve 1 and blowoff valve 1, the test container 14 It is connected with safety valve 2 146 and blowoff valve 2 145.
The system also includes control unit 17 and data acquisition unit 18, described control unit 17 and the main valve one 121st, switch valve 1, main valve 2 122, switch valve 2 133, pressure-regulating valve 134, the control connection of switch valve 3 135, described Data acquisition unit 18 and the flowmeter 135, pressure sensor 1, pressure sensor 2 143 and temperature sensor 144 connections, the data acquisition unit 18 is also connected with terminal 19.
The present invention uses air as test(ing) medium, and gas storage section pipeline 12 connects the air accumulator of multiple parallel connections in pilot system 15, can according to needed for the caliber size of tested valve 16 is selected when performance test is done air accumulator 15 number, it is to avoid the waste of resource; The other flow measuring section pipeline 13 is composed in parallel by the different branch line 131 of multiple bores, and each branch line 131 sets The flowmeter 135 of different ranges is put, alternative turn-on flow rate test branch pipeline 131, realizes different range flows during test The combination of meter 135, to meet the performance test of all bore air bleeding valves 16.Heretofore described test chamber 14 is compared with conventional test Pipeline is compared, and can accurately be simulated air and first be assembled the process discharged afterwards, and the true running status with tested valve in pipeline is more Plus coincide, it is ensured that the accuracy of test.The switching motion of each main valve and switch valve is by control unit 17 in the present invention Remote control, the measurement data of flowmeter 135, pressure sensor 1, pressure sensor 2 143 and temperature sensor 144 It is acquired by data acquisition unit 18, it is ensured that the accuracy of measurement and measuring accuracy of the system operation.Present invention row Air valve performance test system has scalability, can by increase the number of the number of the air accumulator 15 or branch line 131 come Support the test of follow-up bigger specification air bleeding valve.
The pressure sensor 1 can detect the pressure P1 at the import of tested valve 16, and the tested valve 16 is exported The pressure P2 at place is atmospheric pressure, and the inlet outlet pressure differential of tested valve 16 can be finally given by the detection of pressure sensor 1 Δ P=P1-P2, the inlet outlet pressure differential Δ P are the exhaust pressure difference of tested valve.The flowmeter 135 can be to flow rate test Gas flow in Duan Guanlu is detected, so as to obtain the gas displacement Q of tested valve.The pressure-regulating valve 134 can be right Gas pressure in each branch line 131 is adjusted, so as to obtain state change that air bleeding valve opened from steam vent to exhaust Gas pressure required for the state of bore closure, exhaust pressure difference and design during the vent closure of the air bleeding valve that will be detected First exhaust pressure difference is compared, and performance of exhaust valve reliability is illustrated if coincideing.
When valve performance test is exhausted, the installing pipe 141 that selection one of which caliber is matched with the bore of tested valve 16 The performance for meeting multiple caliber air bleeding valve by setting the installing pipe 141 of various calibers to install tested valve, the i.e. present invention is surveyed It is applied widely the need for examination process, also embody the present invention have scalability the characteristics of.
The safety valve 1, safety valve 2 146 ensure that the security of test pipeline.The blowoff valve 1, row Dirty valve 2 145 can be before test be carried out respectively by the debris discharge in air accumulator 15 and test container 14, to improve tested valve The accuracy of 16 performance tests, while also having the effect of protection test pipeline.The temperature sensor 144 can hold to test Temperature in device 14 carries out real-time detection, and so as to test out influence degree of the temperature to the performance of tested valve 16, this is true to air bleeding valve There is temperature in use in the case of reality directiveness to act on.The pressure sensor 2 143 can be with the pressure in probing test container 14 Power changes.
Embodiment 2
The method of testing of above-mentioned performance of exhaust valve test system, comprises the following steps:
S1, the closing main valve 2 122, open main valve 1 and switch valve 1, start the compressor 11, lead to Overcompression machine 11 is inflated in each air accumulator 15, after each air accumulator 15 is full of, closes the switch valve 1 and total Valve 1;
S2, according to the bore parameter of tested valve 16, it is determined that number, the number of branch line 131 of air accumulator 15 needed for experiment And bore;
S3, the switch valve 1 for opening the main valve 2 122 and each air accumulator 15 needed for experiment, branch needed for opening The entrance point switch valve 2 132 of pipeline 131, pressure-regulating valve 134 and port of export switch valve 3 133, medium flow out through air accumulator 15 After be introduced into branch line 131 and flow into test container 14 again, while 18 pairs of flowmeters 135 of the data acquisition unit, pressure Force snesor 1, temperature sensor 144, the data of pressure sensor 2 143 are acquired;
S4, by adjust pressure-regulating valve 134 change branch line 131 in pressure, measure multigroup under different pressure differences The data input terminal 19 of collection is processed and is drawn the row of tested valve 16 by data, the data acquisition unit 18 Draught head-capacity curve.
The bore DN100 of above-mentioned tested valve 16, exhaust pressure difference 0.035MPa, then accordingly select 2 10m3Air accumulator, gas storage Pressure tank 2.5MPa, selects DN100 branch lines, and the flowmeter range on branch line is 448-12483Nm3/hr。
The bore DN150 of above-mentioned tested valve 16, exhaust pressure difference 0.07MPa, then accordingly select 4 10m3Air accumulator, gas storage Pressure tank 2.5MPa, selects DN150 branch lines, and the flowmeter range on branch line is 1016-28331Nm3/hr。
According to the exhaust specifically chosen how many air accumulator of pressure difference and the storage of much pressure of the bore of tested valve 16 and design Gas tank, number and diameter of branch line etc., can be selected according to test needs.
Above-mentioned method of testing is simple to operate and safety coefficient is high, and tested valve performance test is accurate.

Claims (6)

1. a kind of performance of exhaust valve test system, it is characterised in that:Including the compressor being sequentially connected along gas flow direction (11), gas storage section pipeline (12), flow measuring section pipeline (13) and test container (14), the compressor (11) and gas storage section Main valve one (121) is provided between pipeline (12);Multiple air accumulators being set up in parallel are connected with gas storage section pipeline (12) (15), it is provided with switch valve one (151) between the air accumulator (15) and gas storage section pipeline (12);The flow measuring section pipeline (13) branch line (131) that is variant including multiple bores and being set up in parallel, each branch line (131) import is provided with switch Valve two (132), the outlet of each branch line (131) are provided with switch valve three (133), and pressure is additionally provided with the branch line (131) Force regulating valve (134) and flowmeter (135);The installation for installing tested valve (16) is connected with the test container (14) Pipe (141), pressure sensor one (142) is provided with the tested valve (16) import.
2. performance of exhaust valve test system as claimed in claim 1, it is characterised in that:Gas storage section pipeline (12) and flow Main valve two (122) is provided between measuring section pipeline (13), be additionally provided with the test container (14) pressure sensor two (143) with And temperature sensor (144).
3. performance of exhaust valve test system as claimed in claim 1, it is characterised in that:It is connected with the test container (14) The installing pipe (141) of various caliber specifications, the installing pipe (141) carries out matching peace with the air bleeding valve (16) of various bores respectively Dress.
4. performance of exhaust valve test system as claimed in claim 2, it is characterised in that:The air accumulator (15) is provided with pressure Table (152), safety valve one (153) and blowoff valve one (154), the test container (14) be connected with safety valve two (146) with And blowoff valve two (145).
5. performance of exhaust valve test system as claimed in claim 4, it is characterised in that:The system also includes control unit (17) And data acquisition unit (18), described control unit (17) and the main valve one (121), switch valve one (132), main valve two (122), switch valve two (133), pressure-regulating valve (134), the control connection of switch valve three (135), the data acquisition unit (18) with the flowmeter (135), pressure sensor one (142), pressure sensor two (143) and temperature sensor (144) Connection, the data acquisition unit (18) is also connected with terminal (19).
6. a kind of method of testing of the performance of exhaust valve test system based on described in claim 5, comprises the following steps:
S1, the closing main valve two (122), open main valve one (121) and switch valve one (151), start the compressor (11), by compressor (11) to inflation in each air accumulator (15), after each air accumulator (15) is full of, the switch is closed Valve one (151) and main valve one (121);
S2, according to tested valve (16) bore parameter, it is determined that the number of air accumulator (15) needed for experiment, branch line (131) Number and bore;
S3, the switch valve one (151) for opening the main valve two (122) and each air accumulator (15) needed for experiment, open required point Bye-pass (131) entrance point switch valve two (132), pressure-regulating valve (134) and port of export switch valve three (133), medium is through storage Branch line (131) is introduced into after gas tank (15) outflow and flows into test container (14) again, while the data acquisition unit (18) Data to the flowmeter (135), pressure sensor one (142), temperature sensor (144), pressure sensor two (143) are entered Row collection;
S4, change branch line (131) by adjusting pressure-regulating valve (134) in pressure, measured under different exhaust pressure differences The data input terminal (19) for gathering is processed and drawn tested by multi-group data, the data acquisition unit (18) Exhaust pressure difference-capacity the curve of valve (16).
CN201710041529.1A 2017-01-20 2017-01-20 exhaust valve performance test system and test method Active CN106872155B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109000905A (en) * 2018-06-04 2018-12-14 泉州市沪航阀门制造有限公司 A kind of hydraulic characteristic(s) test device and test method
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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CN105606355A (en) * 2016-02-26 2016-05-25 余姚市三力信电磁阀有限公司 Large integrated water gas solenoid valve detection system

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