CN102564753A - Test table of intelligent fluid control valve and detecting method thereof - Google Patents
Test table of intelligent fluid control valve and detecting method thereof Download PDFInfo
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- CN102564753A CN102564753A CN2011104576859A CN201110457685A CN102564753A CN 102564753 A CN102564753 A CN 102564753A CN 2011104576859 A CN2011104576859 A CN 2011104576859A CN 201110457685 A CN201110457685 A CN 201110457685A CN 102564753 A CN102564753 A CN 102564753A
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Abstract
The invention relates to the technology of testing a valve and aims to provide a test table of an intelligent fluid control valve and a detecting method thereof. The test table comprises a pipe section provided with an intelligent fluid control valve to be detected, an electromagnetic flow meter and a water circulating loop, wherein the water circulating loop consists of a centrifugal water pump, a water tank, a pipeline and the pipe section; the intelligent fluid control valve is provided with an intelligent controller, a differential pressure sensor and an executor; the electromagnetic flow meter is mounted on the pipeline between the centrifugal water pump and the valve to be detected; and the electromagnetic flow meter and an intelligent controller of the valve to be detected are connected to a PLC (Programmable Logic Controller) control system through electric cables. With the adoption of the test table of the intelligent fluid control valve and the detecting method thereof disclosed by the invention, the property test of the intelligent fluid control valve can be automatically completed without manual intervention during a process, so that the test time is greatly reduced, the test device has high precision, and the test result is accurate and reliable. The test process is visible and has rapid response to abnormal conditions. The test table has fully functions, high integration degree, simplicity and convenience for operation, flexible design and strong expansibility.
Description
Technical field
The present invention relates to a kind of measuring technology of SMART FLUID operation valve, definite says, relates to a kind of performance test bed and detection method of SMART FLUID operation valve that can remote-operated automatic control.
Background technology
50%～65% is consumed in central air conditioner system in the annual power consumption of top-grade building thing, and unsteady flow amount air-conditioning system is compared with the constant flow air-conditioning system, and water pump and cooling tower equipment on average can save energy 60%～80%, refrigeration host computer can save energy 10%～40%.But ubiquity the hydraulic misadjustment phenomenon in the air-conditioning flow-changing water system, and the pipe network water force unbalance causes a large amount of wastes of system's energy and the increase of running noises easily.Adopting intelligent dynamic balance motor-driven variable valve control technology is the best approach that solves complex grid Hydraulic Power System balance.In order to alleviate energy shortage, create conservation-minded society, must Based Intelligent Control, energy meter and the hydraulic equilibrium technology of central air conditioner system be kept whole harmonious development.
The SMART FLUID operation valve is a kind of control valve for fluids that has specific function; In fluid systems such as central air conditioner, central heating, the application of SMART FLUID operation valve has very significant meaning for save energy and reduce the cost, improve stability, the reduction flow noise etc. of distributing system.
The SMART FLUID operation valve has changed that traditional existing adjustment of mechanical self-operated fluid operation valve is dumb, the transmission & distribution efficiency is relatively poor, measuring accuracy is low and defective and problems such as can't intelligence integrated and basin automated system.The SMART FLUID operation valve has been used electromechanical integration integrated innovation control technology simultaneously, has realized the dynamic flow control of electronic type principle, not only can replace traditional mechanical self-operated fluid operation valve, and can obviously improve system's transmission & distribution Energy Efficiency Ratio.
Seeing that the performance of SMART FLUID operation valve is complete; The traditional final product pick-up unit can't satisfy; Each item that novel pick-up unit needs to detect the SMART FLUID operation valve detects data; And accomplish that each link such as Data Detection, preservation, processing are comprehensive integrated, improve detection efficiency simultaneously.
Summary of the invention
The technical matters that the present invention will solve is, overcomes deficiency of the prior art, and a kind of test board of SMART FLUID operation valve Performance Detection is provided.
Be the technical solution problem, solution of the present invention is:
A kind of test board of SMART FLUID operation valve is provided, comprises the pipeline section that tested SMART FLUID operation valve is housed; This test board also comprises: electromagnetic flowmeter and the water-flow circuit of being made up of centrifugal water pump, water tank, pipeline and said pipeline section; Described SMART FLUID operation valve has intelligent controller, differential pressure pickup and actuator; Said electromagnetic flowmeter is loaded on the pipeline between centrifugal water pump and the tested valve; The intelligent controller of electromagnetic flowmeter and tested valve all is connected to the PLC control system through cable.
As a kind of improvement, said centrifugal water pump is the frequency conversion centrifugal water pump, establishes bypass valve between the pipeline after the export pipeline of centrifugal water pump and the tested valve.
As a kind of improvement, said PLC control system and PC are realized both-way communication.
As a kind of improvement, said PC links to each other with printer.
Further, the invention provides a kind of detection method of the SMART FLUID operation valve based on aforementioned test board, comprise the steps:
The pipeline section that (1) tested SMART FLUID operation valve will be housed starts centrifugal water pump with after the pipeline of centrifugal water pump outlet is connected, makes that the water transmission & distribution in the water tank arrive tested valve;
(2) in 0～100% valve opening scope; With 5% is that unit etc. sets up test point separately; System controls tested valve opening by PLC control, at the resulting flow value Q of each test point record electromagnetic flowmeter, the resulting pressure difference Δ of valve two ends differential pressure pickup P; Calculate the pairing discharge coefficient of each test point
X according to Mathematical Modeling
and refer to valve opening;
(3) the PLC control system is with the intelligent controller of the tested valve of the coefficient of flow that obtains
input; Intelligent controller obtains the pairing flow value of valve opening numerical value of each check point according to mathematical model
; Δ P is the pressure difference at valve two ends; And compare with the flow value of electromagnetic flowmeter survey gained and to get difference, choose that maximum in all differences control accuracy as tested valve;
(4) the tested valve gate control accuracy value and the technological standards that obtain are compared, and will detect data and comparative result is saved to PC.
Among the present invention, after testing is accomplished, stop centrifugal water pump.
Among the present invention, said step (2)～(4) automatically perform according to the software that presets by the PLC control system.In the test process,, then end test job immediately if there is unexpected situation to take place.
Beneficial effect of the present invention is:
The present invention can accomplish the performance test of SMART FLUID operation valve automatically, and the centre need not manual intervention, has shortened the test duration greatly, and the proving installation degree of accuracy is high, and test result accurately and reliably.Test process is visual, to the abnormal conditions reflection rapidly.Test board is multiple functional, and integrated level is high, and is simple to operation, and flexible design, extendability are strong.
Description of drawings
Fig. 1 is the test board block diagram of system of the present invention.
Fig. 2 is a test board structural drawing of the present invention.
Embodiment
Fig. 1 is the block diagram of system of test board of the present invention.The PLC control system is accomplished test automatically through carrying out inner program.PLC control system and PC are realized both-way communication, and PLC control system and equipment are realized both-way communication.
Fig. 2 is a test board structural drawing of the present invention.Water in the water tank 1 utilizes frequency conversion centrifugal water pump 2 transmission & distribution to tested valve 5 through after filtering.Before the tested valve 5 electromagnetic flowmeter 4 is installed, is used for measuring flow value through tested valve 5.Tested valve 5 has the differential pressure pickup that carries, and is used for measuring the pressure difference of valve front and back.Between the pipeline after the export pipeline of frequency conversion centrifugal water pump 2 and the tested valve 5 bypass valve 3 is installed.The PLC control system is opened to appointment aperture according to given signal with tested valve 5 by intelligent controller 6 after giving intelligent controller 6 with electrical signal transfer.
After tested valve 5 is installed in test board, start centrifugal water pump 2, make that the water transmission & distribution in the water tank 1 arrive tested valve 5.0 to 100% of the valve opening degree range in 5% increments so divided detection point; measured by the PLC control system controls the valve opening, at each detection point record electromagnetic flowmeter flow values obtained Q, two valves side pressure sensor pressure value obtained ΔP; according to the mathematical model
calculated for each test point corresponding to the flow coefficient
X refers to the valve opening.
The PLC control system is with the intelligent controller of the tested valve of the coefficient of flow that obtains
input, and valve positioner obtains the pairing flow value of valve opening numerical value (Δ P is the pressure difference at valve two ends) according to mathematical model
.And compare with the flow value of electromagnetic flowmeter survey gained and to get difference, choose maximum that in all differences, as the control accuracy of tested valve.
Obviously, the invention is not restricted to above-mentioned implementation method, many correlation techniques can also be arranged, especially PLC control system and built-in control program thereof are owing to belong to this area current techique, so similar can have many kinds.All correlation techniques that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (7)
1. the test board of a SMART FLUID operation valve comprises the pipeline section that tested SMART FLUID operation valve is housed, and it is characterized in that, this test board also comprises: electromagnetic flowmeter and the water-flow circuit of being made up of centrifugal water pump, water tank, pipeline and said pipeline section; Described SMART FLUID operation valve has intelligent controller, differential pressure pickup and actuator; Said electromagnetic flowmeter is loaded on the pipeline between centrifugal water pump and the tested valve; The intelligent controller of electromagnetic flowmeter and tested valve all is connected to the PLC control system through cable.
2. test board according to claim 1 is characterized in that, said centrifugal water pump is the frequency conversion centrifugal water pump, establishes bypass valve between the export pipeline of centrifugal water pump and the export pipeline of tested valve.
3. test board according to claim 1 is characterized in that, said PLC control system and PC are realized both-way communication.
4. test board according to claim 3 is characterized in that said PC links to each other with printer.
5. the detection method based on the SMART FLUID operation valve of the said test board of claim 1 is characterized in that, comprises the steps:
The pipeline section that (1) tested SMART FLUID operation valve will be housed starts centrifugal water pump with after the pipeline of centrifugal water pump outlet is connected, makes that the water transmission & distribution in the water tank arrive tested valve;
(2) 0 to 100% of the valve opening degree range in 5% increments so divided detection point; measured by the PLC control system controls the valve opening, at each detection point record electromagnetic flowmeter flow rate value Q obtained across the valve differential pressure sensor pressure value obtained ΔP; according to the mathematical model
calculated for each test point corresponding to the flow coefficient
X refers to the valve opening;
(3) the PLC control system is with the intelligent controller of the tested valve of the coefficient of flow that obtains
input; Intelligent controller obtains the pairing flow value of valve opening numerical value of each check point according to mathematical model
; Δ P is the pressure difference at valve two ends; And compare with the flow value of electromagnetic flowmeter survey gained and to get difference, choose that maximum in all differences control accuracy as tested valve;
(4) the tested valve gate control accuracy value and the technological standards that obtain are compared, and will detect data and comparative result is saved to PC.
6. method according to claim 5 is characterized in that, after testing is accomplished, stops the centrifugal water pump operation.
7. method according to claim 5 is characterized in that, said step (2)～(4) automatically perform according to the software that presets by the PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110457685.9A CN102564753B (en) | 2011-12-31 | 2011-12-31 | A kind of test board of SMART FLUID operation valve and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110457685.9A CN102564753B (en) | 2011-12-31 | 2011-12-31 | A kind of test board of SMART FLUID operation valve and detection method |
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| CN102564753A true CN102564753A (en) | 2012-07-11 |
| CN102564753B CN102564753B (en) | 2015-09-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063418A (en) * | 2012-09-26 | 2013-04-24 | 北京工业大学 | Characteristic measurement device for oil mass measurement unit |
| CN103674541A (en) * | 2013-12-31 | 2014-03-26 | 卓旦春 | Method for testing performance of differential pressure valve |
| CN110261099A (en) * | 2019-06-20 | 2019-09-20 | 江苏亿阀股份有限公司 | A kind of Subzero valve intercooling cycle experimental system |
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| CN101025633A (en) * | 2007-03-15 | 2007-08-29 | 上海交通大学 | Flour measuring and coutrolling method for electromagnetic valve |
| CN101256107A (en) * | 2007-03-01 | 2008-09-03 | 海尔集团公司 | Device for detecting air conditioner electronic expansion valve opening |
| KR20100092320A (en) * | 2009-02-12 | 2010-08-20 | 주식회사 에스앤드더블유아이엔디 | A butterfly valve testing device |
| CN202403906U (en) * | 2011-12-31 | 2012-08-29 | 杭州哲达科技股份有限公司 | Test bench of intelligent fluid control valve |
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2011
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| CN101256107A (en) * | 2007-03-01 | 2008-09-03 | 海尔集团公司 | Device for detecting air conditioner electronic expansion valve opening |
| CN101025633A (en) * | 2007-03-15 | 2007-08-29 | 上海交通大学 | Flour measuring and coutrolling method for electromagnetic valve |
| KR20100092320A (en) * | 2009-02-12 | 2010-08-20 | 주식회사 에스앤드더블유아이엔디 | A butterfly valve testing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063418A (en) * | 2012-09-26 | 2013-04-24 | 北京工业大学 | Characteristic measurement device for oil mass measurement unit |
| CN103063418B (en) * | 2012-09-26 | 2016-04-20 | 北京工业大学 | Fuel gauging element characteristics measurement mechanism |
| CN103674541A (en) * | 2013-12-31 | 2014-03-26 | 卓旦春 | Method for testing performance of differential pressure valve |
| CN110261099A (en) * | 2019-06-20 | 2019-09-20 | 江苏亿阀股份有限公司 | A kind of Subzero valve intercooling cycle experimental system |
| CN110261099B (en) * | 2019-06-20 | 2023-11-14 | 江苏亿阀股份有限公司 | Low-temperature valve internal cooling circulation experiment system |
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| CN102564753B (en) | 2015-09-23 |
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