CN106197558B - A kind of valve state on-line monitoring system and its working method - Google Patents
A kind of valve state on-line monitoring system and its working method Download PDFInfo
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- CN106197558B CN106197558B CN201610743875.XA CN201610743875A CN106197558B CN 106197558 B CN106197558 B CN 106197558B CN 201610743875 A CN201610743875 A CN 201610743875A CN 106197558 B CN106197558 B CN 106197558B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
A kind of valve state on-line monitoring system and its working method.It is related to the improvement of industrial stokehold and detection field more particularly to valve state on-line monitoring and the technology of fault diagnosis.Propose a kind of delicate structure, easy to use and high reliablity, valve position (valve aperture can be utilized when use, the open amount of meter valve), valve pressure calculate theoretical torque and be compared with actual torque, thus the valve state on-line monitoring system and its working method that are accurately judged to valve state.The electric device is connected with valve, and for driving valve to do opening movement or closing movement；The torque sensor is connected between electric device and valve, and for acquiring the current torque of valve；The pressure transmitter is connected with pressure testing machine, and for measuring operating pressure current on valve, and is converted into current signal；The present invention has the characteristics that delicate structure, easy to use and high reliablity on the whole.
Description
Technical field
The present invention relates to industrial stokehold and detection field more particularly to valve state on-line monitoring and fault diagnosises
The improvement of technology.
Background technique
Currently, because detection device reason user of service to valve on-line operation state without accurate data supporting, design and
It manufactures valve often to be carried out according to theoretical calculation and experience, there are relatively large deviations with actual condition.And valve state characterization parameter:
It is often carried out on different instruments when torque, valve position, pressure test, the mutual relationship of parameter can not be established, while can not be right
Failure valve is screened and is judged, to propose that maintenance is suggested.
Summary of the invention
For the present invention in view of the above problems, propose a kind of delicate structure, easy to use and high reliablity, when use, is available
Valve position (i.e. valve aperture, the open amount of meter valve), valve pressure calculate theoretical torque and are compared with actual torque, thus
The valve state on-line monitoring system and its working method accurately judged valve state.
The technical solution of the present invention is as follows: including calculating center, parameter tester, pressure transmitter, pressure testing machine, electronic
Device and torque sensor；
The electric device is connected with valve, and for driving valve to do opening movement or closing movement；
The torque sensor is connected between electric device and valve, and for acquiring the current torque of valve；
The pressure testing machine is connected with valve, and for applying external pressure to valve；
The pressure transmitter is connected with pressure testing machine, and for measuring operating pressure current on valve, and turns
Turn to current signal；
The pressure transmitter, torque sensor, electric device pass through parameter tester and are connected with calculating center, institute
Parameter tester is stated to be used for the mutual conversion of current signal and voltage signal.
The calculating center sends switching value instruction to the electric device by parameter tester, so that control valve is done
Opening movement or closing movement, and 4~20mA feedback signal by receiving electric device is to obtain current valve aperture.
The current torque of valve is acquired by the torque sensor, and in the electricity for being converted into corresponding 4~20mA
It is inputted in parameter tester after flowing signal.
The pressure testing machine includes liquid booster pump, pressure console and pressure test bench, the pressure console with
Calculating center is connected；
By liquid booster pump to valve pressurization and pressure maintaining；
By pressure console closed-loop control booster pump, realize that pressurization pump pressure accurately controls；
Pass through testing stand real-time display test pressure time graph.
The pressure transmitter includes Silicon pressure sensing element, and the Silicon pressure sensing element is connected with valve, is used for
Operating pressure on valve is converted to the current signal of 4~20mA.
The parameter tester include Signal interface module, three signal conditioning modules, ON-OFF control circuit module and after
Electrical signal input module；
The Signal interface module is for connecting calculating center；
The ON-OFF control circuit module, relay signal input module be connected to electric device and Signal interface module it
Between, for driving valve to do opening movement or closing movement；
Three signal conditioning modules are both connected on Signal interface module, and three signal conditioning module difference
It is connected to electric device, torque sensor, on pressure transmitter, the signal conditioning module includes sequentially connected for acquiring
The acquisition module of the current signal of 4~20mA, for filtering filter module and for by the current signal of 4~20mA and 0~
The conversion module that 10V voltage signal is mutually converted.
Maintenance database and Mishap Database are additionally provided in the calculating center.
It works according to the following steps:
1), input known parameters: the error range of valve aperture, coefficient of friction, the diameter of axle, pressure when by valve wide open,
In the error range of valve aperture and the error range input calculating center of torque；
2), pre-add external pressure: cracking pressure testing machine sets external pressure when testing by pressure console；
2) it, tests: controlling electric device by calculating center, so that valve is driven to be run by full-gear to full off state,
It is run again by full off state to full-gear；
3), data acquire: calculating center will acquire the data of each component, and the valve aperture of generation, work after being computed
Pressure, actual measurement torque at work in report；
4) T, is calculatedp: the error range of the operating pressure of actual measurement, valve aperture and valve aperture is substituted into formula Calculate Tp, and insert in report；
5) T, is calculatedf: the error range range of the valve aperture of actual measurement, operating pressure and pressure is substituted into formula Calculate Tf, and insert in report；
6), judge the torque of actual measurement whether in TpError range in, be to enter step 7)；Otherwise it enters step 9)；
7), judge the torque of actual measurement whether in TfError range in, be to enter step 8)；Otherwise it enters step 9)；
8), generate return on qualification: the center that calculates combines maintenance database, generates return on qualification, and provide maintenance suggestion；Turn
Enter step 10)；
9) it, generates Trouble Report: calculating center and combine Mishap Database, generate Trouble Report, and provide maintenance and suggest；Turn
Enter step 10)；
10) it, finishes.
By to the center of calculating, parameter tester, pressure transmitter, pressure testing machine, electric device and torsion in the present invention
The pool of square sensor controls, so that can easily generate different time lower valve bore, operating pressure, reality in calculating center
Survey the data sheet of torque；Hereafter, after substituting into the error range of valve aperture, the error range of pressure, i.e., available to be input to
Formula in calculating centerIt is convenient, quasi-
True calculates TpValue and TfValue；Finally, pass through TpValue and TfThe side that the error of value combination torque secondary can be compared, be checked
Formula precisely, efficiently judges valve state.The present invention has delicate structure, easy to use and high reliablity on the whole
The characteristics of.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention,
Fig. 2 is the structural schematic diagram of parameter tester in the present invention,
Fig. 3 is work flow diagram of the invention；
Specific embodiment
The present invention is as shown in Figure 1-3, include calculating center, parameter tester, pressure transmitter, pressure testing machine, electronic
Device and torque sensor；
The electric device is connected with valve, and for driving valve to do opening movement or closing movement；
The torque sensor is connected between electric device and valve, and for acquiring the current torque of valve；
The pressure testing machine is connected with valve, and for applying external pressure to valve；
The pressure transmitter is connected with pressure testing machine, and for measuring operating pressure current on valve, and turns
Turn to current signal；
The pressure transmitter, torque sensor, electric device pass through parameter tester and are connected with calculating center, institute
Parameter tester is stated to be used for the mutual conversion of current signal and voltage signal.
The calculating center sends switching value instruction to the electric device by parameter tester, so that control valve is done
Opening movement or closing movement, and 4~20mA feedback signal by receiving electric device is to obtain current valve aperture.Its
In the electric device that receives send 4~20mA feedback signal and current valve aperture there are corresponding relationship, therefore, in calculating
The heart can extrapolate current valve aperture by the 4~20mA feedback signal issued to electric device.
The current torque of valve is acquired by the torque sensor, and in the electricity for being converted into corresponding 4~20mA
It is inputted in parameter tester after flowing signal.Thus after the current signal of 4~20mA switchs to 0~10V voltage signal, it is effectively right
It answers, obtain out current anti-twisted, i.e., the current real-time torque of valve.
The pressure testing machine includes liquid booster pump, pressure console and pressure test bench, the pressure console with
Calculating center is connected；
By liquid booster pump to valve pressurization and pressure maintaining；
By pressure console closed-loop control booster pump, realize that pressurization pump pressure accurately controls；
Pass through testing stand real-time display test pressure time graph.
The pressure transmitter includes Silicon pressure sensing element, and the Silicon pressure sensing element is connected with valve, is used for
Operating pressure on valve is converted to the current signal of 4~20mA.To which the current signal in 4~20mA switchs to 0~10V electricity
After pressing signal, effectively corresponds to, obtains out the current pressure of valve.
The parameter tester include Signal interface module, three signal conditioning modules, ON-OFF control circuit module and after
Electrical signal input module；
The Signal interface module is for connecting calculating center；
The ON-OFF control circuit module, relay signal input module be connected to electric device and Signal interface module it
Between, for driving valve to do opening movement or closing movement；
Three signal conditioning modules are both connected on Signal interface module, and three signal conditioning module difference
It is connected to electric device, torque sensor, on pressure transmitter, the signal conditioning module includes sequentially connected for acquiring
The acquisition module of the current signal of 4~20mA, for filtering filter module and for by the current signal of 4~20mA and 0~
The conversion module that 10V voltage signal is mutually converted.
Maintenance database and Mishap Database are additionally provided in the calculating center.
It works according to the following steps:
1), input known parameters: the error range of valve aperture, coefficient of friction, the diameter of axle, pressure when by valve wide open,
In the error range of valve aperture and the error range input calculating center of torque；
2), pre-add external pressure: cracking pressure testing machine sets external pressure when testing by pressure console；
2) it, tests: controlling electric device by calculating center, so that valve is driven to be run by full-gear to full off state,
It is run again by full off state to full-gear；
3), data acquire: calculating center will acquire the data of each component, and the valve aperture of generation, work after being computed
Pressure, actual measurement torque at work in report；
4) T, is calculatedp: the error range of the operating pressure of actual measurement, valve aperture and valve aperture is substituted into formula Calculate Tp, and insert in report；This
When, the pressure value of several actual measurements is divided into several groups, in each group by the error range of pressure value, valve aperture and valve aperture
It substitutes into and calculates, to obtain several groups TpValue, same group of TpIt is worth corresponding time, pressure and actual measurement torque to remain unchanged, valve port
The call by value of diameter then in the error range numerical intervals after being added of the valve aperture of actual measurement and valve aperture variation and and Tp
Value corresponds；I.e. using operating pressure as standard value, the error range according to valve aperture calculates several groups TpValue；
5) T, is calculatedf: the error range range of the valve aperture of actual measurement, operating pressure and pressure is substituted into formula Calculate Tf, and insert in report；This
When, the valve aperture of several actual measurements is divided into several groups, in each group by the error range of valve aperture, operating pressure and pressure
Range, which substitutes into, to be calculated, to obtain several groups TfValue, same group of TfIt is worth corresponding time, valve aperture and actual measurement torque to keep not
Become, the call by value of pressure then in the error range numerical intervals after being added of the pressure value of actual measurement and pressure variation and and Tf
Value corresponds；I.e. using valve aperture as standard value, the error range according to operating pressure calculates several groups TfValue；
6), judge the torque of actual measurement whether in TpError range in, be to enter step 7)；Otherwise it enters step 9)；
7), judge the torque of actual measurement whether in TfError range in, be to enter step 8)；Otherwise it enters step 9)；
8), generate return on qualification: the center that calculates combines maintenance database, generates return on qualification, and provide maintenance suggestion；Turn
Enter step 10)；
9) it, generates Trouble Report: calculating center and combine Mishap Database, generate Trouble Report, and provide maintenance and suggest；Turn
Enter step 10)；
10) it, finishes.
The present invention is in step 6) to step 9) by Tp、TfIt is combined with the error range of the torque inputted in step 1), to step
It is rapid 3) in the torque that acquires analyzed and determined, thus it is secondary compare, check by way of to valve state carry out it is good, have
The judgement of effect, and accurate return on qualification or Trouble Report are generated hereafter.
Claims (7)
1. a kind of working method of valve state on-line monitoring system, which is characterized in that including calculate center, parameter tester,
Pressure transmitter, pressure testing machine, electric device and torque sensor；
The electric device is connected with valve, and for driving valve to do opening movement or closing movement；
The torque sensor is connected between electric device and valve, and for acquiring the current torque of valve；
The pressure testing machine is connected with valve, and for applying external pressure to valve；
The pressure transmitter is connected with pressure testing machine, and for measuring operating pressure current on valve, and is converted into
Current signal；
The pressure transmitter, torque sensor, electric device pass through parameter tester and are connected with calculating center, the ginseng
Number tester is used for the mutual conversion of current signal and voltage signal；
It works according to the following steps:
1) known parameters: valve aperture, coefficient of friction, the diameter of axle when by valve wide open, the error range of pressure, valve, are inputted
In the error range of bore and the error range input calculating center of torque；
2), pre-add external pressure: cracking pressure testing machine sets external pressure when testing by pressure console；
2) it, tests: controlling electric device by calculating center, so that valve is driven to be run by full-gear to full off state, then by
Full off state is run to full-gear；
3), data acquire: calculating center will acquire the data of each component after being computed, and generate valve aperture, operating pressure,
Survey torque at work in report；
4) T, is calculatedp: the error range of the operating pressure of actual measurement, valve aperture and valve aperture is substituted into formula T=Calculate Tp, and insert in report；
5) T, is calculatedf: the error range range of the valve aperture of actual measurement, operating pressure and pressure is substituted into formula T=Calculate Tf, and insert in report；
6), judge the torque of actual measurement whether in TpError range in, be to enter step 7)；Otherwise it enters step 9)；
7), judge the torque of actual measurement whether in TfError range in, be to enter step 8)；Otherwise it enters step 9)；
8), generate return on qualification: the center that calculates combines maintenance database, generates return on qualification, and provide maintenance suggestion；It is transferred to step
It is rapid 10)；
9) it, generates Trouble Report: calculating center and combine Mishap Database, generate Trouble Report, and provide maintenance and suggest；It is transferred to step
It is rapid 10)；
10) it, finishes.
2. a kind of working method of valve state on-line monitoring system according to claim 1, which is characterized in that the meter
Calculation center sends switching value instruction to the electric device by parameter tester, so that control valve does opening movement or closing
Movement, and 4~20mA feedback signal by receiving electric device is to obtain current valve aperture.
3. a kind of working method of valve state on-line monitoring system according to claim 1, which is characterized in that pass through institute
The current torque of torque sensor acquisition valve is stated, and inputs ginseng after the current signal for being converted into corresponding 4~20mA
In number tester.
4. a kind of working method of valve state on-line monitoring system according to claim 1, which is characterized in that the pressure
Force tester includes liquid booster pump, pressure console and pressure test bench, and the pressure console is connected with calculating center；
By liquid booster pump to valve pressurization and pressure maintaining；
By pressure console closed-loop control booster pump, realize that pressurization pump pressure accurately controls；
Pass through testing stand real-time display test pressure time graph.
5. a kind of working method of valve state on-line monitoring system according to claim 1, which is characterized in that the pressure
Power transmitter includes Silicon pressure sensing element, and the Silicon pressure sensing element is connected with valve, for by the work on valve
Pressure conversion is the current signal of 4~20mA.
6. a kind of working method of valve state on-line monitoring system according to claim 1, which is characterized in that the ginseng
Number tester includes Signal interface module, three signal conditioning modules, ON-OFF control circuit module and relay signal input mould
Block；
The Signal interface module is for connecting calculating center；
The ON-OFF control circuit module, relay signal input module are connected between electric device and Signal interface module,
For driving valve to do opening movement or closing movement；
Three signal conditioning modules are both connected on Signal interface module, and three signal conditioning modules are separately connected
On electric device, torque sensor, pressure transmitter, the signal conditioning module include it is sequentially connected for acquire 4~
The acquisition module of the current signal of 20mA, for the filter module of filtering and for by the current signal and 0~10V of 4~20mA
The conversion module that voltage signal is mutually converted.
7. a kind of working method of valve state on-line monitoring system according to claim 1, which is characterized in that the meter
Maintenance database and Mishap Database are additionally provided in calculation center.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610743875.XA CN106197558B (en) | 2016-08-26 | 2016-08-26 | A kind of valve state on-line monitoring system and its working method |
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| CN201610743875.XA CN106197558B (en) | 2016-08-26 | 2016-08-26 | A kind of valve state on-line monitoring system and its working method |
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| CN106197558A CN106197558A (en) | 2016-12-07 |
| CN106197558B true CN106197558B (en) | 2019-03-19 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350859A (en) * | 2018-12-21 | 2020-06-30 | 核动力运行研究所 | Device and method for detecting state of electric regulating valve |
| CN110533167B (en) * | 2019-08-23 | 2022-02-08 | 中国石油化工股份有限公司 | Fault diagnosis method and system for electric valve actuating mechanism |
| CN110748692B (en) * | 2019-12-05 | 2021-11-23 | 无锡市经登自控阀门有限公司 | Method for monitoring use state of valve based on torque |
| CN113049023A (en) * | 2019-12-26 | 2021-06-29 | 国核电站运行服务技术有限公司 | Online real-time monitoring device and method for electric valve |
| CN110987414A (en) * | 2019-12-27 | 2020-04-10 | 广州燃气集团有限公司 | System and method for valve detection and performance evaluation |
| CN112683521B (en) * | 2020-12-10 | 2023-07-21 | 中广核工程有限公司 | Nuclear power plant electric valve state on-line monitoring and fault diagnosis system |
| CN117970971B (en) * | 2024-04-01 | 2024-05-31 | 上海海维工业控制有限公司 | Valve port independent electric valve control method and system based on state identification |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7328719B2 (en) * | 2004-08-10 | 2008-02-12 | Ross Operating Valve Company | Valve state sensing module |
| CN201754241U (en) * | 2010-06-30 | 2011-03-02 | 中国船舶重工集团公司第七〇四研究所 | Embedded valve remote control device |
| CN201902674U (en) * | 2010-12-15 | 2011-07-20 | 上海宝钢设备检修有限公司 | Online valve status monitoring system based on ZigBee technology |
| CN202165683U (en) * | 2011-07-12 | 2012-03-14 | 天津开发区翔龙网络设备有限公司 | Valve state monitor |
| CN103308288A (en) * | 2012-04-24 | 2013-09-18 | 浙江三方控制阀股份有限公司 | Diagnosis device of valve and diagnosis method applying same |
| CN205353688U (en) * | 2016-02-02 | 2016-06-29 | 扬州电力设备修造厂有限公司 | Intelligent valve remote control system |
| CN205958030U (en) * | 2016-08-26 | 2017-02-15 | 扬州电力设备修造厂有限公司 | Valve status on -line monitoring system |
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