CN101750194B - Test platform for comprehensive performance of pressure-reducing valve - Google Patents
Test platform for comprehensive performance of pressure-reducing valve Download PDFInfo
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- CN101750194B CN101750194B CN2010100342462A CN201010034246A CN101750194B CN 101750194 B CN101750194 B CN 101750194B CN 2010100342462 A CN2010100342462 A CN 2010100342462A CN 201010034246 A CN201010034246 A CN 201010034246A CN 101750194 B CN101750194 B CN 101750194B
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Abstract
The invention relates to a test platform for comprehensive performance of a pressure-reducing valve, comprising a detecting loop, and the detecting loop comprises a water tank unit, a water pump and a test unit, the water outlet of the water tank unit is connected with the water inlet of the test unit through a water inlet pipe, the water inlet of the water tank unit is connected with the water outlet of the test unit through a water outlet pipe, and the water pump is arranged on the water inlet pipe, the test unit comprises a test pipeline, and the test pipeline is provided with a mounting interface for switching-in the tested pressure-reducing valve, and the test pipeline or a plurality of pipelines are provided, the plurality of test pipeline are connected in parallel, the test pipeline is provided with a pressure sensor A and a pressure sensor B which are respectively located at both sides of the mounting interface. The invention is designed for the comprehensive performance test of the pressure-reducing valve; the whole system has compact structure, reasonable layout, convenient operation, accurate controlling, and high working efficiency, and is suitable for the test of various pressure-reducing valves of different full bores.
Description
Technical field
The present invention relates to a kind of reduction valve test platform, relate in particular to a kind of test platform for comprehensive performance of pressure-reducing valve.
Background technology
At present; Mostly each item performance test for reduction valve is that the workman carries out manual test through simple testing apparatus between test carriage; Working strength of workers is big; And owing to receive the restriction of workman's quality and test condition, make to be difficult to reach uniform test request when repeatedly testing, make reduction valve have quality problems.Rare reduction valve performance test machine also can only be tested to a kind of performance of the reduction valve of or a kind of latus rectum model; And need the staff that each controlled valve of test machine is carried out manual operation usually; Each item test data is carried out manual record; When influencing work efficiency, can not guarantee the accuracy of testing again.
Summary of the invention
In order to solve the above-mentioned defective of prior art; The invention provides a kind of test platform for comprehensive performance of pressure-reducing valve; This test platform can be simultaneously to a plurality of reduction valve or respectively the multinomial performance of the reduction valve of different latus rectums is tested; Can also the work efficiency and the accuracy of test have been improved effectively through the two-stage control of Programmable Logic Controller and industrial computer.
The technical scheme that the present invention adopts is:
A kind of test platform for comprehensive performance of pressure-reducing valve; Be provided with and detect the loop, said detection loop comprises tank unit, water pump and test cell, and said tank unit comprises cold water storage cistern and boiler; The water delivering orifice of the said tank unit of the water delivering orifice of said cold water storage cistern and boiler formation parallel with one another; The water inlet of the said tank unit of the water inlet of said cold water storage cistern and boiler formation parallel with one another, the water delivering orifice of said tank unit connects the water inlet of said test cell through water inlet pipe, and the water inlet of said tank unit connects the water delivering orifice of said test cell through rising pipe; Said water pump is arranged on the said water inlet pipe; Said test cell is provided with testing conduit, and said testing conduit is provided with the mounting interface that is used to insert tested reduction valve, also is provided with the test cell bypass parallelly connected with said test cell on the said detection loop; Said test cell bypass is provided with stop valve B, can be provided with the pressure transducer A and the pressure transducer B that lay respectively at said mounting interface both sides on the said testing conduit.
Testing conduit quantity in the said test cell can be for one or more; Said a plurality of testing conduit parallel connection; Mounting interface on each testing conduit can adopt same structure, also can adopt different structure, to be used to insert the tested reduction valve of same-interface or the tested reduction valve of distinct interface.
Can be provided with the shutoff valve C and the flowmeter B of mutual series connection on the said rising pipe; Said shutoff valve C and flowmeter B are between the water inlet of the water delivering orifice of said test cell and said tank unit; Can be provided with the flow regulation pipeline parallelly connected on the said rising pipe with said shutoff valve C; Said flow regulation pipeline is provided with the stop valve D and the flow regulation element of series connection successively; Can also be provided with on the said rising pipe and said shutoff valve C and the parallelly connected exit branch of flowmeter B; The water inlet end of said exit branch is connected on the water delivering orifice and the said rising pipe between the said shutoff valve C of said test cell, and the water side is connected on the said rising pipe between the water inlet of said flowmeter B and said tank unit, can be provided with stop valve A, throttling valve and the flowmeter A of series connection successively on the said exit branch.
Can be provided with the supply valve and the pressure regulator valve A of series connection successively on the said water inlet pipe, said supply valve and pressure regulator valve A are between said water pump and said test cell.
Can be connected with the voltage stabilizing arm between said water inlet pipe and the rising pipe; The water inlet end of said voltage stabilizing arm is connected on the said water inlet pipe between said water pump and the said supply valve; The water side is connected on the said rising pipe between the water inlet of said flowmeter B and said tank unit; Can be provided with pressure transducer C and surplus valve on the said voltage stabilizing arm, wherein said pressure transducer C is arranged on the water inlet end pipeline of said surplus valve.
Can also be provided with bypass test pipeline on the said detection loop; The water inlet end of said bypass test pipeline is connected on the said water inlet pipe between said voltage stabilizing arm water inlet end and the said supply valve; The water side is connected on the water delivering orifice and the said rising pipe between the said shutoff valve C of said test cell; Can be provided with stop valve D, pressure regulator valve B and the stop valve E of series connection successively on the said bypass test pipeline; Also be provided with pressure transducer D, said pressure transducer D is arranged on the pipeline between said pressure regulator valve B and the stop valve E.
Be respectively equipped with separately water outlet stop valve and water inlet stop valve on the outlet conduit of said cold water storage cistern and said boiler and the inlet channel, can be respectively equipped with the temperature sensor that is used to detect the interior water temperature of case separately on said cold water storage cistern and the boiler.
This test platform for comprehensive performance of pressure-reducing valve can also comprise and is used for electric control unit that the test process of tested reduction valve is monitored and controlled; Said electric control unit comprises Programmable Logic Controller and industrial computer; Be electrically connected between said Programmable Logic Controller and the said industrial computer; Said Programmable Logic Controller connects said supply valve, surplus valve, throttling valve, each pressure regulator valve and each stop valve through control circuit; Connect each flowmeter, each pressure transducer and temperature sensor through signal transfering circuit, said Programmable Logic Controller is provided with the load module that can import various operational factors, the display module that shows test mode and test result, storage test mode and the memory module of test result data and the alarm module that is used for fault alarm.
Beneficial effect of the present invention: The present invention be directed to the all-round property testing of reduction valve and design whole system compact conformation, rationally distributed; Adopt the two stage control system of Programmable Logic Controller and industrial computer to control, easy to operate, control is accurate, high efficiency; The design of a plurality of testing conduits of test cell can be tested test platform simultaneously to the multinomial performance of a plurality of reduction valve, whether each item test performance that can determine reduction valve exactly conformance with standard.
Description of drawings
Fig. 1 is the structural representation of signal piping of the present invention.
Embodiment
Referring to Fig. 1; The invention provides a kind of test platform for comprehensive performance of pressure-reducing valve; Comprise being used for detection loop that the combination property of tested reduction valve 6 is tested, said detection loop comprises tank unit, water pump 3 and test cell, and said tank unit can comprise cold water storage cistern 1 and boiler 2; The water delivering orifice parallel connection of said cold water storage cistern and boiler constitutes the water delivering orifice of tank unit; Connect the water inlet of said test cell through water inlet pipe, so that provide the test of different temperatures to use medium for said test cell, the parallel connection of the water inlet of said cold water storage cistern and boiler constitutes the water inlet of tank unit; Connect the water delivering orifice of said test cell through rising pipe, test can be recycled in said detection loop with medium.Said water pump can be arranged on the said water inlet pipe; Water flow for the said water pump of convenient control; Can be furnished with frequency converter on the said water pump, can be respectively equipped with stop valve 4 on the outlet conduit of said cold water storage cistern and boiler and the inlet channel, so that the water outlet and the backwater of said cold water storage cistern and boiler are controlled; Can be respectively equipped with temperature sensor 5 on said cold water storage cistern and the boiler; Through the temperature signal that said temperature sensor is gathered, can understand the medium temperature in said cold water storage cistern and the boiler at any time, said cold water storage cistern and boiler are respectively equipped with refrigerator and well heater.
Said test cell can comprise testing conduit, and said testing conduit is provided with the mounting interface that is used to insert tested reduction valve, and said tested reduction valve can insert said detection loop through said mounting interface and carry out the test of reduction valve each item performance.
The quantity of said testing conduit can be set to one, also can be set to a plurality of, when the quantity of said testing conduit is set to when a plurality of; A plurality of said testing conduit parallel connections; The mounting interface of a plurality of said testing conduits can adopt and be respectively the mounting interface that is used to insert the mounting interface of identical reduction valve or is used to insert different latus rectum reduction valve, and promptly the structure of these mounting interfaces can be identical, also can be different; Perhaps part is identical; Part is different, adopts the said testing conduit of this kind design, can test or respectively the tested reduction valve of different latus rectums tested a plurality of said tested reduction valve simultaneously.Can also be respectively equipped with stop valve on the said testing conduit at said tested reduction valve two ends; When not connecting said tested reduction valve or need be when the said tested reduction valve on the said testing conduit is tested on certain said testing conduit, the stop valve that can close the above tested reduction valve two ends of corresponding said testing conduit to certain.
The force value at tested reduction valve two ends is gathered when testing for convenient, can be respectively equipped with pressure transducer A7 and pressure transducer B8 on the testing conduit at said mounting interface two ends.
Be convenient force value of regulating said tested reduction valve two ends, said test cell can parallelly connected test cell bypass, and said test cell bypass is provided with stop valve B9.
For monitoring the rate-of flow in the said rising pipe at any time; Can be provided with shutoff valve C 10 and flowmeter B11 between the water inlet of the water delivering orifice of said the above test cell of rising pipe and said cold water storage cistern and boiler; Said shutoff valve C can be parallel with the flow regulation pipeline; Can be provided with stop valve D12 and flow regulation element 13 on the said flow regulation pipeline; Said flow regulation element can adopt the 1.6mm damping hole, so that the requirement that should test can be regulated the rate-of flow in the said rising pipe at any time.
Can be provided with on the said rising pipe and said shutoff valve C 10 and the parallelly connected exit branch of flowmeter B11; One end (water inlet end) of said exit branch can be connected between the water delivering orifice and said shutoff valve C of said the above test cell of rising pipe; The other end (water side) can be connected between the water inlet of the above flowmeter B of said rising pipe and said cold water storage cistern and boiler, can be provided with stop valve A18, throttling valve 19 and flowmeter A20 successively on the said exit branch.
Can be provided with the supply valve 14 and pressure regulator valve A15 of series connection successively on the said water inlet pipe; Said supply valve and pressure regulator valve A are between said water pump and said test cell; Can control whether allowing test to get into said test cell through said supply valve with medium; Can regulate the pressure of the medium in the said water inlet pipe that gets into said test cell through said pressure regulator valve A, make pressure medium reach the standard value of test request.
For preventing that said water pump from causing too high pressure at the front end of said water inlet pipe; Be inappropriate for tested reduction valve is tested; Can be connected with the voltage stabilizing arm between said water inlet pipe and the rising pipe; One end (water inlet end) of said voltage stabilizing arm can be connected on the said water inlet pipe between said water pump and the said supply valve; The other end (water side) can be connected on the said rising pipe between the water inlet of said flowmeter B and said cold water storage cistern and boiler, can be provided with pressure transducer C16 and surplus valve 17 on the said voltage stabilizing arm, and said pressure transducer C is arranged on the water inlet end pipeline of said surplus valve.When the forefront pressure of the said water inlet pipe that monitors through said pressure transducer C is too high; Can open the said surplus valve on the said voltage stabilizing arm; Make the unnecessary rate-of flow in the said water inlet pipe return said cold water storage cistern and/or boiler through said arm; The intake pressure that guarantees said surplus valve meets testing standard, and the pressure in the promptly said water inlet pipe meets testing standard.
Can also be provided with bypass test pipeline on the said detection loop; One end (water inlet end) of said bypass test pipeline can be connected between the junction and said supply valve of the above arm of said water inlet pipe and said water inlet pipe; The other end (water side) can be connected between the water delivering orifice and said shutoff valve C of said the above test cell of rising pipe, can be provided with stop valve D21, pressure regulator valve B22, pressure transducer D23 and stop valve E24 successively on the said bypass test pipeline.Through control, can make the pressure of said tested reduction valve rear end be equal to or higher than the pressure of front end, thereby whether the unlatching of the bypass relief valve of said tested reduction valve is normally tested each controlled valve on the said bypass test pipeline.
Said test platform for comprehensive performance of pressure-reducing valve can also comprise and is used for electric control unit that the test process of tested reduction valve is monitored and controlled; Said electric control unit can comprise Programmable Logic Controller and industrial computer; With the purpose that reaches handled easily, accurately controls; Be electrically connected between said Programmable Logic Controller and the said industrial computer; Said Programmable Logic Controller can connect said supply valve, surplus valve, throttling valve, each pressure regulator valve and each stop valve through control circuit; Can pass through signal transfering circuit connection traffic meter, each pressure transducer and temperature sensor, monitor to the control of each controlled valve in the test platform with to the signal of each sensor and flowmeter with convenient, said Programmable Logic Controller can be provided with load module, demonstration and the state of storage test process and the display module and the memory module of test result that can import various operational factors; And the alarm module that shows various malfunctions; Two-stage control through said industrial computer and said Programmable Logic Controller makes operator's service test platform more easily, facilities for observation state and test result more intuitively; Make the control of test platform more accurately, improved the work efficiency of test greatly.
The all-round property testing of said tested reduction valve comprises the test of reduction valve leak-testing, the test of reduction valve temperature property test, reduction valve voltage adjustment characteristic testing experiment, compression release valve flow characteristic testing experiment and reduction valve bypass relief valve unlatching pressure reduction testing experiment; Each controlled valve before each item test in the said detection loop is in closed condition, to the control of each controlled valve opening and closing by the tester through said Controlled by Programmable Controller.
One, reduction valve leak-testing experiment work process:
The test of reduction valve leak-testing comprises internal leakage test and external leakage test.
1, the reduction valve internal leakage testing experiment course of work: said tested reduction valve is inserted suitable said testing conduit; Making the medium temperature in said cold water storage cistern and/or the boiler is normal temperature, opens the outlet conduit of said cold water storage cistern and/or boiler and the stop valve on the inlet channel, and controlling said water pump is to supply water in said detection loop; Monitor the interior pressure signal of said water inlet pipe that said pressure transducer C gathers; When force value does not reach the desired standard value of internal leakage testing experiment (like 250psi), make the pressure in the said water inlet pipe reach testing experiment required standard value through regulating said frequency converter, when force value surpasses testing experiment required standard value; Open said surplus valve and regulate the opening degree of said surplus valve; Make the pressure in the said water inlet pipe reach testing experiment required standard value, open said supply valve, pressure regulator valve A, stop valve A and stop valve B, after the air in the pipeline in said detection loop drains; Close said stop valve A and stop valve B simultaneously; Monitor the pressure signal that said pressure transducer A and pressure transducer B gather, keep the normal operation of test platform 5 minutes, monitor the pressure signal that said pressure transducer B gathers once more; If the pressure signal that said pressure transducer B gathers for the second time is higher than the pressure signal of gathering for the first time, then said tested reduction valve internal leakage.In the test process, can regulate the pressure of said test cell inflow point at any time, with the demands of different of adaptive testing test to pressure through the said pressure regulator valve A that is provided with on the said water inlet pipe.
2, the reduction valve external leakage testing experiment course of work: said tested reduction valve is inserted suitable said testing conduit; Making the medium temperature in said cold water storage cistern and/or the boiler is normal temperature; Open the outlet conduit of said cold water storage cistern and/or boiler and the stop valve on the inlet channel; Controlling said water pump is to supply water in said detection loop, and the pressure of regulating in the said water inlet pipe through the surplus valve that is provided with on said frequency converter and the said arm reaches the desired standard value of testing experiment (like 250psi), opens said supply valve, pressure regulator valve A and stop valve B; The force value at said tested reduction valve two ends is equated; Keep said tested reduction valve pressure at two ends to equate 5 minutes, observe said tested reduction valve and whether occur leaking, thereby confirm whether external leakage of said tested reduction valve.In the test process, can regulate the pressure of said test cell inflow point at any time, with the demands of different of adaptive testing test to pressure through the said pressure regulator valve that is provided with on the said water inlet pipe.
Two, reduction valve temperature property test experiment work process:
Said tested reduction valve is inserted suitable said testing conduit; Adopting said refrigerator and well heater to be respectively medium in said cold water storage cistern and the boiler freezes and heats; Through the tested media temperature signal in the said boiler of the temperature sensor monitors on the said boiler; When the temperature of the tested media in the said boiler reaches the desired maximum temperature of test; Open said boiler and go out the said stop valve A on stop valve, the said supply valve on the said water inlet pipe, pressure regulator valve A and the said exit branch on pipeline and the inlet pipe road, open said water pump hot water is circulated in said detection loop, regulate pressure in the said water inlet pipe through the said surplus valve on said frequency converter and the said arm and reach or be lower than the desired standard value of testing experiment; The aperture of observing said flowmeter A and regulating said throttling valve; Make rate-of flow in the said detection loop reach the setting of test request, keep the normal operation of test platform ten days, move 8 hours every day; After the off-test, close the outlet of said boiler and the stop valve of porch; Through the temperature sensor on the said cold water storage cistern medium temperature in the said cold water storage cistern is monitored; When the temperature of the medium in the said cold water storage cistern reaches the desired minimum temperature of test; Open the stop valve of said cold water storage cistern outlet and porch, cold water is circulated in said detection loop, and repeat the above-mentioned course of work; Observe said tested reduction valve for a long time after working under the maximum operation temperature that allows, whether material and performance are affected.
Three, the reduction valve voltage adjustment characteristic testing experiment course of work:
Reduction valve voltage adjustment characteristic testing experiment comprises the test of reduction valve pressure drop test bias, the minimum top hole pressure testing experiment of reduction valve and reduction valve top hole pressure range of adjustment testing experiment.
1, reduction valve pressure drop test bias experiment work process: said tested reduction valve is inserted suitable said testing conduit; Making the medium temperature in said cold water storage cistern and/or the boiler is normal temperature, opens the outlet conduit of said cold water storage cistern and/or boiler and the stop valve on the inlet channel, and controlling said water pump is to supply water in said detection loop; (like pressure is 250psi to control the pressure medium of said water inlet pipe front end and standard value that flow reaches test request through the said surplus valve on said frequency converter and the said arm; Flow is not less than 6.3L/S), open said supply valve, pressure regulator valve A and stop valve D, make tested media through said flow regulation element; Regulate said pressure regulator valve A and observe the pressure signal that said pressure transducer A gathers; Making the forefront pressure of said tested reduction valve is 100ps i, regulates said tested reduction valve and observes the pressure signal that said pressure transducer B gathers, and makes the pressure of said tested reduction valve outlet reach 50psi; Regulate said pressure regulator valve A once more and observe the pressure signal that said pressure transducer A gathers; The forefront pressure that makes said tested reduction valve is 150psi, and the pressure of monitoring said tested reduction valve exit through said pressure transducer B changes, after test is accomplished; Regulate said pressure regulator valve A and observe the pressure signal that said pressure transducer A gathers; Make the pressure of said tested reduction valve front end reduce to 50psi, the pressure of monitoring said tested reduction valve exit through said pressure transducer B changes, if the every change of the forefront pressure of said tested reduction valve 10psi; The top hole pressure of said tested reduction valve changes above 1psi, explains that then said tested reduction valve to be tested is a substandard product.
2, the minimum top hole pressure testing experiment of the reduction valve course of work: said tested reduction valve is inserted suitable said testing conduit; Making the medium temperature in said cold water storage cistern and/or the boiler is normal temperature; Open the outlet conduit of said cold water storage cistern and/or boiler and the stop valve on the inlet channel; Controlling said water pump is to supply water in said detection loop; Said surplus valve through regulating on said frequency converter and the said arm makes the forefront pressure of said water inlet pipe reach test desired standard value (like 250psi), opens said supply valve, pressure regulator valve A and stop valve A, observes said flowmeter A and regulates said throttling valve; Make the flow in said detection loop reach the normal flow of test request; Regulate said pressure regulator valve A and observe said pressure transducer B, can pressure that observe said tested reduction valve rear end reach 25psi, thereby confirm whether said tested reduction valve is specification product.
3, the reduction valve top hole pressure range of adjustment testing experiment course of work: said tested reduction valve is inserted suitable said testing conduit; Making the medium temperature in said cold water storage cistern and/or the boiler is normal temperature; Open the outlet conduit of said cold water storage cistern and/or boiler and the stop valve on the inlet channel; Controlling said water pump is to supply water in said detection loop; The pressure of regulating said water inlet pipe front end through the said surplus valve on said frequency converter and the said arm reaches the desired standard value of test; Open said supply valve, pressure regulator valve A and stop valve D; Observe said pressure transducer A and regulate said pressure regulator valve A that to make the pressure of said tested reduction valve front end be 100psi, adjust said tested reduction valve and observe said pressure transducer B, see that can the top hole pressure of said tested reduction valve reach the maximum top hole pressure and the minimum top hole pressure of standard.
Four, the compression release valve flow characteristic testing experiment course of work:
Said tested reduction valve is inserted suitable said testing conduit, and making the medium temperature in said cold water storage cistern and/or the boiler is normal temperature, opens the outlet conduit of said cold water storage cistern and/or boiler and the stop valve on the inlet channel; Controlling said water pump is to supply water in said detection loop; The pressure of regulating said water inlet pipe front end through the said surplus valve on said frequency converter and the said arm reaches the desired standard value of test, opens said supply valve, pressure regulator valve A and stop valve D, makes the damping hole of medium through 1.6mm; Regulate said pressure regulator valve A and observe said pressure transducer A; Making the forefront pressure of said tested reduction valve is 50psi, adjusts said tested reduction valve and observes said pressure transducer B, and the top hole pressure that makes said tested reduction valve is 33psi; Close said stop valve D; Open said stop valve A, regulate said throttling valve and observe said pressure transducer B, the top hole pressure that makes said tested reduction valve is 17psi; Observe the flow value of said flowmeter A monitoring, whether consistently see with the flow value of standard.
Five, the bypass relief valve is opened the pressure reduction testing experiment course of work:
Said tested reduction valve is inserted suitable said testing conduit; Making the medium temperature in said cold water storage cistern and/or the boiler is normal temperature; Open the outlet conduit of said cold water storage cistern and/or boiler and the stop valve on the inlet channel, controlling said water pump is to supply water in said detection loop, and the pressure of regulating said water inlet pipe front end through the said surplus valve on said frequency converter and the said arm reaches the desired standard value of test; Open said supply valve and pressure regulator valve A; Regulate said pressure regulator valve A and observe said pressure transducer A, making the pressure of said tested reduction valve front end is 100psi, opens said stop valve D and pressure regulator valve B; Regulate said pressure regulator valve B and observe said pressure transducer D and pressure transducer A; Make the interior pressure of said bypass test pipeline be lower than the pressure (as being lower than 5psi) of said tested reduction valve front end, open said stop valve E, regulate said pressure regulator valve B and observe said pressure transducer D and said pressure transducer A; Make the interior pressure of said bypass test pipeline be equal to or higher than the pressure of said tested reduction valve front end; Monitor the force value in the said tested reduction valve exit of said pressure transducer B collection, observe when the force value of said pressure transducer B collection is higher than the force value 10psi of said pressure transducer A collection, whether the bypass relief valve on the said tested reduction valve is opened automatically.
Claims (8)
1. test platform for comprehensive performance of pressure-reducing valve; Be provided with and detect the loop; It is characterized in that said detection loop comprises tank unit, water pump and test cell; Said tank unit comprises cold water storage cistern and boiler, the water delivering orifice of the said tank unit of the water delivering orifice of said cold water storage cistern and boiler formation parallel with one another, the water inlet of the said tank unit of the water inlet of said cold water storage cistern and boiler formation parallel with one another; The water delivering orifice of said tank unit connects the water inlet of said test cell through water inlet pipe; The water inlet of said tank unit connects the water delivering orifice of said test cell through rising pipe, and said water pump is arranged on the said water inlet pipe, and said test cell is provided with testing conduit; Said testing conduit is provided with the mounting interface that is used to insert tested reduction valve; Also be provided with the test cell bypass parallelly connected with said test cell on the said detection loop, said test cell bypass is provided with stop valve B, and said testing conduit is provided with pressure transducer A and the pressure transducer B that lays respectively at said mounting interface both sides.
2. test platform for comprehensive performance of pressure-reducing valve as claimed in claim 1; It is characterized in that the testing conduit quantity in the said test cell is one or more; Said a plurality of testing conduit parallel connection; Mounting interface on each testing conduit adopts same structure or different structure, is used to insert the tested reduction valve of same-interface or the tested reduction valve of distinct interface.
3. test platform for comprehensive performance of pressure-reducing valve as claimed in claim 2; It is characterized in that said rising pipe is provided with the shutoff valve C and the flowmeter B of mutual series connection; Said shutoff valve C and flowmeter B are between the water inlet of the water delivering orifice of said test cell and said tank unit; Also be provided with the flow regulation pipeline parallelly connected on the said rising pipe with said shutoff valve C; Said flow regulation pipeline is provided with the stop valve D and the flow regulation element of series connection successively; Also be provided with on the said rising pipe and said shutoff valve C and the parallelly connected exit branch of flowmeter B; The water inlet end of said exit branch is connected on the water delivering orifice and the said rising pipe between the said shutoff valve C of said test cell, and the water side is connected on the said rising pipe between the water inlet of said flowmeter B and said tank unit, and said exit branch is provided with stop valve A, throttling valve and the flowmeter A of series connection successively.
4. test platform for comprehensive performance of pressure-reducing valve as claimed in claim 3 is characterized in that said water inlet pipe is provided with the supply valve and the pressure regulator valve A of series connection successively, and said supply valve and pressure regulator valve A are between said water pump and said test cell.
5. test platform for comprehensive performance of pressure-reducing valve as claimed in claim 4; It is characterized in that being connected with between said water inlet pipe and the rising pipe voltage stabilizing arm; The water inlet end of said voltage stabilizing arm is connected on the said water inlet pipe between said water pump and the said supply valve; The water side is connected on the said rising pipe between the water inlet of said flowmeter B and said tank unit; Said voltage stabilizing arm is provided with pressure transducer C and surplus valve, and wherein said pressure transducer C is arranged on the water inlet end pipeline of said surplus valve.
6. test platform for comprehensive performance of pressure-reducing valve as claimed in claim 5; It is characterized in that also being provided with on the said detection loop bypass test pipeline; The water inlet end of said bypass test pipeline is connected on the said water inlet pipe between said voltage stabilizing arm water inlet end and the said supply valve; The water side is connected on the water delivering orifice and the said rising pipe between the said shutoff valve C of said test cell; Said bypass test pipeline is provided with stop valve D, pressure regulator valve B and the stop valve E of series connection successively, also is provided with pressure transducer D, and said pressure transducer D is arranged on the pipeline between said pressure regulator valve B and the stop valve E.
7. test platform for comprehensive performance of pressure-reducing valve as claimed in claim 6; It is characterized in that being respectively equipped with water outlet stop valve and water inlet stop valve separately on outlet conduit and the inlet channel of said cold water storage cistern and said boiler, be respectively equipped with on said cold water storage cistern and the boiler and be used to detect the temperature sensor of the interior water temperature of case separately.
8. test platform for comprehensive performance of pressure-reducing valve as claimed in claim 7; It is characterized in that also comprising and be used for electric control unit that the test process of tested reduction valve is monitored and controlled; Said electric control unit comprises Programmable Logic Controller and industrial computer; Be electrically connected between said Programmable Logic Controller and the said industrial computer; Said Programmable Logic Controller connects said supply valve, surplus valve, throttling valve, each pressure regulator valve and each stop valve through control circuit; Connect each flowmeter, each pressure transducer and temperature sensor through signal transfering circuit, said Programmable Logic Controller is provided with the load module that can import various operational factors, the display module that shows test mode and test result, storage test mode and the memory module of test result data and the alarm module that is used for fault alarm.
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| CN2010100342462A CN101750194B (en) | 2010-01-18 | 2010-01-18 | Test platform for comprehensive performance of pressure-reducing valve |
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| CN2010100342462A CN101750194B (en) | 2010-01-18 | 2010-01-18 | Test platform for comprehensive performance of pressure-reducing valve |
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| CN101750194B true CN101750194B (en) | 2012-07-04 |
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