CN201876351U - Testing device capable of fast obtaining performance parameters and curves of valve - Google Patents
Testing device capable of fast obtaining performance parameters and curves of valve Download PDFInfo
- Publication number
- CN201876351U CN201876351U CN 201020638755 CN201020638755U CN201876351U CN 201876351 U CN201876351 U CN 201876351U CN 201020638755 CN201020638755 CN 201020638755 CN 201020638755 U CN201020638755 U CN 201020638755U CN 201876351 U CN201876351 U CN 201876351U
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- valve
- pneumatic
- control valve
- performance
- main frame
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Abstract
The utility model belongs to a testing device and particularly relates to a testing device capable of obtaining the performance of a valve. The testing device capable of fast obtaining the performance parameters and curves of the valve comprises a positioner connected with a pneumatic control valve through a pipeline, wherein the positioner is connected with an I/P connected with a host machine, the positioner and the I/P are respectively connected with an air supply device through pipelines, and the host machine is connected with a collecting and analyzing computer; and a feedback arm of the positioner is connected with the lower part of the pneumatic control valve, a displacement sensor is installed at the lower part of the pneumatic control valve and connected with the host machine, and the output end of the positioner and the input connecting pipeline of the pneumatic control valve are respectively connected with a pneumatic sensor. The advantages are as follows: the testing device is capable of quickly and comprehensively testing the performance parameters of the valve, ensuring the accuracy of the tested parameters by adopting the high-precision sensors well as a testing and collecting device, and obtaining intuitionistic and vivid performance curves, thus being convenient for the more comprehensive and accurate analysis and judgment of performance of the valve.
Description
Technical field
The utility model belongs to a kind of proving installation, is specifically related to a kind of proving installation that obtains valve performance.
Background technology
At present, the way of traditional test pneumatic control valve performance parameter is: use signal generator or handwheel, the operated valve switch detects the valve fundamental performance parameter by conventional instrument and instrument (as: milscale, ruler, stopwatch etc.).The proving installation that this way is used is simple and crude, and the parameter of test is limited, can't accomplish quick and precisely, and technician's skills and experience is had relatively high expectations, and makes mistakes easily, also can't obtain the performance curve of visual pattern simultaneously.
Summary of the invention
The purpose of this utility model provides a kind ofly can test the valve performance parameter fast all sidedly, can also obtain the proving installation that obtains valve performance parameter and curve fast of the performance curve of visual pattern simultaneously.
The utility model is to realize like this, a kind of proving installation that obtains valve performance parameter and curve fast, it comprises the steady arm that is connected to pneumatic control valve by pipeline, steady arm is connected with I/P, I/P is connected with main frame, steady arm also is connected with feeder by pipeline respectively with I/P, main frame is connected with the collection analysis computer, wherein the feedback arm of steady arm is connected with the bottom of pneumatic control valve, displacement transducer is installed in the bottom of pneumatic control valve, displacement transducer is connected with main frame, be connected with pneumatic transmitter and pneumatic transmitter on the input associated line of steady arm output terminal and pneumatic control valve, pneumatic transmitter also is connected with main frame respectively with pneumatic transmitter, also be connected with pneumatic transmitter on the pipeline that is connected between steady arm and the I/P, pneumatic transmitter is connected with main frame, is connected with pneumatic transmitter on the feeder, and pneumatic transmitter is connected with main frame.
The utility model has the advantages that, a kind ofly can test the valve performance parameter fast all sidedly, and the high-precision sensor that adopts and test harvester can be guaranteed the accuracy of test parameter, can also obtain simultaneously the performance curve of visual pattern, be convenient to valve performance is carried out more comprehensively analysis and judgement exactly.
Description of drawings
Fig. 1 is a kind of proving installation synoptic diagram that obtains valve performance parameter and curve fast provided by the utility model.
Among the figure, 1 pneumatic control valve, 2 displacement transducers, 3 steady arms, 4I/P, 5 main frames, 6 collection analysis computers, 7 baroceptors, 8 baroceptors, 9 baroceptors, 10 baroceptors, 11 feeders.
Embodiment
Below in conjunction with drawings and Examples the utility model specially is described in detail:
As shown in Figure 1, it comprises a kind of proving installation that obtains valve performance parameter and curve fast by the bottom of pipeline with pneumatic control valve 1 and being connected with the feedback arm of steady arm 3, steady arm 3 is connected with I/P4, I/P4 is connected with main frame 5, steady arm 3 also is connected with feeder 11 by pipeline respectively with I/P4, main frame 5 is connected with collection analysis computer 6, wherein also be connected with displacement transducer 2 on the pipeline that is connected between the bottom of steady arm 3 and pneumatic control valve 1, displacement transducer 2 is installed in the bottom of pneumatic control valve 1, displacement transducer 2 is connected with main frame 5, be connected with pneumatic transmitter 7 and pneumatic transmitter 8 on the input associated line of steady arm 3 and pneumatic control valve 1, pneumatic transmitter 7 also is connected with main frame 5 respectively with pneumatic transmitter 8, also be connected with pneumatic transmitter 9 on the pipeline that is connected between steady arm 3 and the I/P4, pneumatic transmitter 9 is connected with main frame 5, be connected with pneumatic transmitter 10 on the feeder 11, pneumatic transmitter 10 is connected with main frame 5.
This proving installation adopts 4 high precision baroceptors, and wherein three range abilities are that ((0～2.068bar), 0.25 grade of precision (0.25%FS) is installed in respectively on the valve gas circuit pipeline 0～6.89bar), 0～30psi 0～100psi.The 1955-030 type scrambler formula displacement transducer that displacement transducer adopts U.S. NATION OILWELL VARCO company to produce, error is installed on the valve rod less than 0.28mm.Integrated hardware devices such as data acquisition module, power module, ratio adjusting valve, reduction valve in the main frame.Main frame is connected to I/P current signal input end by a signal wire and provides 4～20mA Control current signal to I/P, the test signal of sensor is sent into data acquisition and main control system, and the various signals that main frame will collect again carry out exchanges data by netting twine and upper collection analysis computer.Built-in data acquisition and analytical calculation software in the computer, by the morphological parameters of half triangular signal that is solidificated in the standard 0～24mA in the software in advance is set, change its initial wait and signal lifting time, this control signal is issued to the current signal that the host computer control main frame imposes on the IP input end by netting twine, the variation of current signal causes the change of valve displacement and each air pressure signal, and these signals collecting are after netting twine is transported to the collection analysis computer carries out analytical calculation and draw valve performance parameter and curve.Curve divides time domain curve and relevant resultant curve, selects some unique points automatically or manually by certain reconnaissance rule on curve, calculates the valve various performance parameters according to the computing formula of software solidification.In addition, can also accurately directly judge some annex defectives of valve by some specific form of test curve.
Use-pattern of the present utility model is as follows:
Valve carries out the performance test test, at first by the morphological parameters of half triangular signal that is solidificated in the standard 0～24mA in the software in advance is set, change its initial wait and signal lifting time, this control signal is issued to the current signal that the host computer control main frame imposes on the I/P input end by netting twine, the variation of current signal causes the change of valve displacement and each air pressure signal, these signals collecting are carried out analytical calculation after netting twine is transported to the collection analysis computer, on curve, select some unique points automatically or manually according to certain reconnaissance rule, can calculate the valve various performance parameters performance parameter of valve and annex thereof (comprise totally 35) according to the computing formula of software solidification.In addition, the test or the control signal of some time domains in the process of the test are synthesized, also can obtain reflecting the correlogram of valve integral body and annex performance thereof, the curve of acquisition comprises the time-domain curve of valve overall performance curve, valve pneumatic actuator performance curve, IP performance curve, steady arm performance curve and air pressure, displacement, control signal relative time.
Claims (1)
1. proving installation that obtains valve performance parameter and curve fast, it is characterized in that: it comprises the steady arm (3) that is connected to pneumatic control valve (1) by pipeline, steady arm (3) is connected with I/P (4), I/P (4) is connected with main frame (5), steady arm (3) also is connected with feeder (11) by pipeline respectively with I/P (4), main frame (5) is connected with collection analysis computer (6), wherein the feedback arm of steady arm (3) is connected with the bottom of pneumatic control valve (1), displacement transducer (2) is installed in the bottom of pneumatic control valve (1), displacement transducer (2) is connected with main frame (5), be connected with pneumatic transmitter (7) and pneumatic transmitter (8) on the input associated line of steady arm (3) output terminal and pneumatic control valve (1), pneumatic transmitter (7) also is connected with main frame (5) respectively with pneumatic transmitter (8), also be connected with pneumatic transmitter (9) on the pipeline that is connected between steady arm (3) and the I/P (4), pneumatic transmitter (9) is connected with main frame (5), be connected with pneumatic transmitter (10) on the feeder (11), pneumatic transmitter (10) is connected with main frame (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020638755 CN201876351U (en) | 2010-12-02 | 2010-12-02 | Testing device capable of fast obtaining performance parameters and curves of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020638755 CN201876351U (en) | 2010-12-02 | 2010-12-02 | Testing device capable of fast obtaining performance parameters and curves of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201876351U true CN201876351U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020638755 Expired - Lifetime CN201876351U (en) | 2010-12-02 | 2010-12-02 | Testing device capable of fast obtaining performance parameters and curves of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201876351U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288405A (en) * | 2011-08-15 | 2011-12-21 | 济南济钢铁合金厂 | Valve performance test bench |
| CN102879186A (en) * | 2011-07-16 | 2013-01-16 | 施杰 | TST2811 valve signal control analyzer |
| CN104359668A (en) * | 2014-11-24 | 2015-02-18 | 贵州电力试验研究院 | Testing device for detecting key characteristics of valve executing mechanism of steam turbine on site and operating method |
| CN106679948A (en) * | 2016-12-15 | 2017-05-17 | 北京航天测控技术有限公司 | Online fault diagnosis method of rapid valve |
| CN107655669A (en) * | 2017-09-19 | 2018-02-02 | 中广核核电运营有限公司 | Pneumatic control valve mechanical performance detection means and its detection method |
-
2010
- 2010-12-02 CN CN 201020638755 patent/CN201876351U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879186A (en) * | 2011-07-16 | 2013-01-16 | 施杰 | TST2811 valve signal control analyzer |
| CN102288405A (en) * | 2011-08-15 | 2011-12-21 | 济南济钢铁合金厂 | Valve performance test bench |
| CN102288405B (en) * | 2011-08-15 | 2014-06-18 | 济南济钢铁合金厂 | Valve performance test bench |
| CN104359668A (en) * | 2014-11-24 | 2015-02-18 | 贵州电力试验研究院 | Testing device for detecting key characteristics of valve executing mechanism of steam turbine on site and operating method |
| CN106679948A (en) * | 2016-12-15 | 2017-05-17 | 北京航天测控技术有限公司 | Online fault diagnosis method of rapid valve |
| CN106679948B (en) * | 2016-12-15 | 2019-02-19 | 北京航天测控技术有限公司 | A kind of quick valve on-line fault diagnosis method |
| CN107655669A (en) * | 2017-09-19 | 2018-02-02 | 中广核核电运营有限公司 | Pneumatic control valve mechanical performance detection means and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |