CN102506964B - Liquid reservoir automatic calibration device and calibration method - Google Patents
Liquid reservoir automatic calibration device and calibration method Download PDFInfo
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- CN102506964B CN102506964B CN 201110328822 CN201110328822A CN102506964B CN 102506964 B CN102506964 B CN 102506964B CN 201110328822 CN201110328822 CN 201110328822 CN 201110328822 A CN201110328822 A CN 201110328822A CN 102506964 B CN102506964 B CN 102506964B
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Abstract
The invention relates to a liquid reservoir automatic calibration device and a calibration method. The device comprises a filter, an exhaust valve, a pressure relieving and stabilizing valve, an ultrasonic wave flowmeter, an upper rectifier plate, an upper manual valve, an upper standard meter, an upper electromagnetic valve, a lower rectifier plate, a lower manual valve, a lower standard meter, a lower electromagnetic valve, an electric regulating valve, a laser sensor, a meter to be tested, a liquidometer, a liquid reservoir to be detected, a pressure transmitter, a first temperature transmitter and a second temperature transmitter. The device can realize the automatic reading of flow rate, liquid level, temperature pressure and regulating valve feedback signals and other signals and automatic storage and processing of data and form printing reports; and the whole process is automatically accomplished with reduced human error and improved accuracy of the device.
Description
Technical field
The invention belongs to the test technique automatic field, relate to a kind of fluid reservoir automatic calibrator and calibration method.
Technical background
Off-line calibration can only be at the flowmeter in the detachable pipeline and water meter, and the censorship cycle is long, influences service efficiency.Can only adopt the on-line calibration mode for containers such as small-sized fluid reservoir and liquid tanks.Therefore the on-line calibration technology has been considered operating modes such as field environmental condition, measuring media, fluid situation, mounting condition fully, has avoided the table accuracy to be calibrated of off-line calibration gained can not represent the drawback of service precision under the actual conditions.
There is following problem in existing flowmeter on-line calibration system:
1. accuracy deficiency: the calibrated fluxes point is to realize that by the manual adjustments valve there are error in flow actual value and setting value.
2. transportation inconvenience: measure pipeline and use buffer tank, be unfavorable for transportation.
3. calibrating efficient is not high: length consuming time is debugged in artificial enforcement calibration requirements of process repeatedly.
Existing volume of compartment calibration adopts volumetric method to determine that capacities chart has problems such as artificial reading error, calibrating time length, complex operation.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of fluid reservoir automatic calibrator and calibration method are provided.
The fluid reservoir automatic calibrator comprises filtrator, vent valve, decompression venting valve, ultrasonic flow meter, goes up cowling panel, goes up hand valve, goes up standard scale, goes up solenoid valve, cowling panel, hand valve, standard scale, solenoid valve, electric control valve, laser sensor, table to be checked, liquid level gauge, fluid reservoir to be checked, pressure unit, first temperature transmitter and second temperature transmitter down down down down.
External pipe is connected with the import of filtrator by flexible pipe or adapter flange, the outlet of filtrator is connected with the import of vent valve, the outlet of vent valve is connected with the import of decompression venting valve, and the outlet of decompression venting valve connects two branch roads, is respectively branch road and following branch road; Ultrasonic flow meter also is installed in the outlet of described decompression venting valve.
Be disposed with cowling panel on the described upward branch road, go up hand valve, go up standard scale, go up solenoid valve; Be disposed with down cowling panel, following hand valve, following standard scale, following solenoid valve on the described branch road down.
The outlet of the outlet of last solenoid valve, following solenoid valve all is connected with the import of electric control valve, and the outlet of electric control valve is connected with the import of table to be checked, and the outlet of table to be checked is connected with fluid reservoir to be checked.
Pipeline between described decompression venting valve and the ultrasonic flow meter is provided with pressure unit, the pipeline that described upward solenoid valve, following solenoid valve are connected with electric control valve is provided with first temperature transmitter, described fluid reservoir to be checked is provided with liquid level and takes into account second temperature transmitter, and described laser sensor is over against table setting to be checked.
The method of utilizing above-mentioned fluid reservoir automatic calibrator to examine and determine:
Allow fluid flow through to get rid of pipeline hollow gas by vent valve behind the filtrator impurity screening and obtain full packages and the less medium of impurity; Stablize the valve top hole pressure through decompression venting valve then and obtain the voltage stabilizing medium; Select to go up branch road, go up branch road or use two branch roads simultaneously by PLC control solenoid valve according to piping flow, open hand valve after, fluid obtains the disturbed flow condition medium after the cowling panel rectification, medium passes through standard scale; PLC control motorized adjustment valve regulation different opening is implemented calibration to obtain different calibrated fluxes points to table to be checked; When table to be checked was screw wing formula water meter, laser sensor can detect water meter gear minimum speed to obtain expression value flow to be checked; When checked object was fluid reservoir, liquid level gauge can detect liquid level in the fluid reservoir; Ultrasonic flow meter is as the check standard table, and effectively whether the criterion table is in normal operating conditions; Temperature transmitter, pressure unit are gathered the temperature and pressure data, are used for the flow compensated value.
Beneficial effect of the present invention: because the present invention has realized automatic storage and the processing of reading automatically of signals such as flow, liquid level, temperature and pressure, variable valve feedback and data and formed printed report, the whole realizations of whole process are finished automatically, eliminated personal error, improved the accuracy of device, operating personnel's work is able to a large amount of simplification, labour intensity reduces, and has shortened the calibration operation time, has improved work efficiency.
Description of drawings
Fig. 1 is apparatus structure synoptic diagram among the present invention.
Fig. 2 is each power unit connection diagram among the present invention.
Fig. 3 is calibration function process flow diagram of the present invention.
Among Fig. 1: 1, flexible pipe or adapter flange, 2, filtrator, 3, vent valve, 4, decompression venting valve, 5, ultrasonic flow meter, 6-1, last cowling panel, 7-1, last hand valve, 8-1, last standard scale, 9-1, last solenoid valve, 6-2, following cowling panel, 7-2, following hand valve, 8-2, following standard scale, 9-2, following solenoid valve, 10, electric control valve, 11, laser sensor, 12, table to be checked, 13, liquid level gauge, 14, fluid reservoir to be checked, 15, temperature transmitter, 16, pressure unit, 17, temperature transmitter.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, external pipe is connected to the canonical measure pipeline by flexible pipe or adapter flange 1, get rid of pipeline hollow gas by vent valve 3 behind measuring media process filtrator 2 impurity screenings and obtain full packages and the less media of impurity, stablize the valve top hole pressure through decompression venting valve 4 then and obtain the voltage stabilizing medium.According to measuring the piping flow size, control the switch of power-on and power-off magnet valve 9-1,9-2 by PLC to select branch road (little caliber), following branch road (big caliber) or to use two branch roads simultaneously, also be disposed with cowling panel 6-1 on the branch road of little caliber, go up hand valve 7-1 and last standard scale 8-1; Also be disposed with down cowling panel 6-2, following hand valve 7-2, following standard scale 8-2 on the big caliber branch road.After opening the manually-operated gate that is positioned at before the standard scale, fluid obtains the disturbed flow condition medium by standard scale after the cowling panel rectification, and PLC control electric control valve 10 is regulated different opening to obtain different calibrated fluxes points, and table 12 to be checked is implemented to calibrate.When table to be checked was screw wing formula water meter, laser sensor 11 can detect water meter gear minimum speed to obtain expression value flow to be checked; When checked object was container, liquid level gauge 13 can detect liquid level in the container.Little caliber (go up branch road) with the accurate ELITE of Ai Moshenggao (CMF100) mass flowmeter as last standard scale 9-1, big caliber (going up branch road) with Daniel1200 type turbo flow meter as standard scale 9-2 down.Ultrasonic flow meter 5 is as the check standard table, effectively whether the criterion table is in normal operating conditions, but be embedded in the temperature transmitter 17 on the measuring channel and be arranged on the temperature temperature transmitter 15 in the fluid reservoir 14 to be checked and be embedded in pressure unit 16 collecting temperature pressure datas on the pipeline, the compensation integrated flow.
As shown in Figure 2, adopt PLC to make real-time and reliability that slave computer guarantees data acquisition and control.PLC is WAGO750-871ETHERNET TCP/IP10/100Mbits/s dual-port Fieldbus Control device able to programme.By this Fieldbus Control device WAGO-I/O-SYSTEM is connected on the ETHERNET field bus system.This Fieldbus Control device provides 512KB program internal memory, 256KB datarams and 24KB to keep internal memory.32 bit CPUs have multitasking function and backup battery real-time clock, and configuration automatically, generation comprise the local process image of digital module, analog module and special functional module.Analog quantity and special functional module are with the form transmission data of word or byte, and digital module is fit to the message transmission rate of 10/100Mbits/s with the form transmission data of position, meet IEC61131-3 programming standard, multiple different application protocol is provided, be used for data acquisition and control (MODBUS, ETHERNET/IP) or be used for system management and diagnosis (HTTP, BootP, DHCP, DNS, SNTP, FTP, SNMP and SMTP).The HTML page or leaf can be placed in the internal server in order to use in the Web-based application system.The 2nd Ethernet interface supported the daisy chain type topological structure, and the largest segment distance is 100m.Since signal propagation time, 20 controllers of can connecting at most.In addition, this controller also can arrange the IP address by DIP switch.
All 4-20mA input signals are gathered by WAGO750-474 binary channels analog quantity load module, and this module has 16 bit resolutions, switching time 80ms, measuring error (25 ℃)＜± 0.1%.This module provides 24V power supply from power supply cross-over connection contact for field apparatus; shielding end is connected directly to the DIN guide rail, and when the about 25mA of current signal that module receives, overload protection will be measured to import and switch to high-impedance state; after recovering normal running conditions, module automaticallyes switch and returns.This load module can be the transmitter power supply processed of 2 lines.
The switch of all solenoid valves is by the control of WAGO750-513 binary channels relay output module, and 220VAC isolates output.
All pulse signals are gathered by WAGO750-404/000-005 dual channel high speed impulse meter module, and the maximum count frequency is 5KHz, 2 * 16 counting regions.Counter can arrange or resets by control word.
As Fig. 3, be calibration function realization flow figure.Open login system by local PC or long-range PC, after username and password is proved to be successful, can enter the calibration function page, otherwise can't enter the calibration interface.
At first, according to Object Selection flowmeter calibration to be checked, water meter calibration or volume of compartment calibration function, select tested flow meter type and range according to actual conditions then.Enter parameter after type selecting is finished the page is set, to the setting of data acquisition channel, measurement range selection, filtering selection, sample frequency setting and sensor parameters setting (as bridge circuit configuration etc.), and can import and export configuration file.
After finishing parameter and arranging, select the realization manually or automatically of calibration function.
Manual function: manual input flow rate calibration point, start back PLC control motorized adjustment valve opening, reach flow setting value, begin the acquisition instrument data after stable, and in real time data and curves such as display standard table, check standard table and surface low amount to be checked, liquid level, temperature, pressure, this point can calculate table to be checked in the error of indication of this point and preserve this spot correlation data after calibrating and finishing.Repeat above process to all calibration points then and finish calibration.Can handle all data after finishing, draw matched curve, and compare the correction instrument coefficient of obtaining curve error and calculating each flow section with actual curve.
Automatic function can arrange the calibrated fluxes point automatically according to the vertification regulation of different checked objects, finishes manual each step and function after the startup automatically.Calibration can be selected generation, storage, printing reports after finishing, and calibrates again or quit a program.
Claims (2)
1. fluid reservoir automatic calibrator, comprise filtrator, vent valve, decompression venting valve, ultrasonic flow meter, go up cowling panel, go up hand valve, go up standard scale, go up solenoid valve, cowling panel, hand valve, standard scale, solenoid valve, electric control valve, laser sensor, table to be checked, liquid level gauge, fluid reservoir to be checked, pressure unit, first temperature transmitter and second temperature transmitter down down down down, it is characterized in that:
External pipe is connected with the import of filtrator by flexible pipe or adapter flange, the outlet of filtrator is connected with the import of vent valve, the outlet of vent valve is connected with the import of decompression venting valve, and the outlet of decompression venting valve connects two branch roads, is respectively branch road and following branch road; Ultrasonic flow meter also is installed in the outlet of described decompression venting valve;
Be disposed with cowling panel on the described upward branch road, go up hand valve, go up standard scale, go up solenoid valve; Be disposed with down cowling panel, following hand valve, following standard scale, following solenoid valve on the described branch road down;
The outlet of the outlet of last solenoid valve, following solenoid valve all is connected with the import of electric control valve, and the outlet of electric control valve is connected with the import of table to be checked, and the outlet of table to be checked is connected with fluid reservoir to be checked;
Pipeline between described decompression venting valve and the ultrasonic flow meter is provided with pressure unit, the pipeline that described upward solenoid valve, following solenoid valve are connected with electric control valve is provided with first temperature transmitter, described fluid reservoir to be checked is provided with liquid level and takes into account second temperature transmitter, and described laser sensor is over against table setting to be checked.
2. the method for utilizing the described fluid reservoir automatic calibrator of claim 1 to examine and determine is characterized in that:
Allow fluid flow through to get rid of pipeline hollow gas by vent valve behind the filtrator impurity screening and obtain full packages and the less medium of impurity; Stablize the valve top hole pressure through decompression venting valve then and obtain the voltage stabilizing medium; Select to go up branch road, branch road or use two branch roads simultaneously down according to piping flow by PLC control solenoid valve, open hand valve after, fluid obtains the disturbed flow condition medium after the cowling panel rectification, medium passes through standard scale; PLC control motorized adjustment valve regulation different opening is examined and determine fluid reservoir to be checked to obtain different calibrated fluxes points; Liquid level gauge can detect liquid level in the fluid reservoir to be checked; Ultrasonic flow meter is as the check standard table, and effectively whether the criterion table is in normal operating conditions; Temperature transmitter, pressure unit are gathered the temperature and pressure data, are used for the flow compensated value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110328822 CN102506964B (en) | 2011-10-26 | 2011-10-26 | Liquid reservoir automatic calibration device and calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110328822 CN102506964B (en) | 2011-10-26 | 2011-10-26 | Liquid reservoir automatic calibration device and calibration method |
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| Publication Number | Publication Date |
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| CN102506964A CN102506964A (en) | 2012-06-20 |
| CN102506964B true CN102506964B (en) | 2013-07-17 |
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| CN 201110328822 Expired - Fee Related CN102506964B (en) | 2011-10-26 | 2011-10-26 | Liquid reservoir automatic calibration device and calibration method |
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Families Citing this family (9)
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| CN103438953B (en) * | 2013-09-12 | 2016-08-17 | 中国计量学院 | A kind of portable ground tank capacity field calibration device and calibration method |
| CN103808590B (en) * | 2013-10-10 | 2017-01-18 | 马勒技术投资(中国）有限公司 | Method for testing fine oil mist separation efficiency |
| CN103954333B (en) * | 2014-04-14 | 2017-01-04 | 新疆维吾尔自治区计量测试研究院 | A kind of water tank type Multifunctional liquidometer automatic calibrator |
| CN104236681B (en) * | 2014-09-26 | 2017-10-27 | 中国计量学院 | Liquid level gauge remote calibration device and method |
| CN105115574A (en) * | 2015-07-20 | 2015-12-02 | 江西省水利水电建设有限公司 | On-site test method of judging accuracy of recorded information of grouting automatic recorder |
| CN106996818A (en) * | 2017-05-08 | 2017-08-01 | 山东积成仪表有限公司 | A kind of water meter fully-automatic laser gathers checking table |
| CN110160611B (en) * | 2019-06-18 | 2021-02-26 | 中广核核电运营有限公司 | Liquid level calibration method and system |
| CN112162482A (en) * | 2020-10-30 | 2021-01-01 | 广州能源检测研究院 | Intelligent combined optimization rectifying device and method suitable for complex flow field and application |
| CN112484822A (en) * | 2020-12-24 | 2021-03-12 | 南京应诺测控技术有限公司 | Loop flow calibrating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2164667C2 (en) * | 1999-06-17 | 2001-03-27 | Федеральное государственное унитарное предприятие "Исследовательский Центр им. М.В. Келдыша" | Plant for stand study of flow characteristics of hydraulic resistances |
| CN2601394Y (en) * | 2003-02-28 | 2004-01-28 | 赵正辉 | Calibrating appts. for loaded test of sand mixing truck and liquid flow and sand flow |
| CN2767974Y (en) * | 2004-12-17 | 2006-03-29 | 张祖明 | Microcomputer controlled water meter calibrating apparatus |
| CN201852622U (en) * | 2010-11-09 | 2011-06-01 | 南京市计量监督检测院 | Automatic capacity calibration device for tank truck |
-
2011
- 2011-10-26 CN CN 201110328822 patent/CN102506964B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2164667C2 (en) * | 1999-06-17 | 2001-03-27 | Федеральное государственное унитарное предприятие "Исследовательский Центр им. М.В. Келдыша" | Plant for stand study of flow characteristics of hydraulic resistances |
| CN2601394Y (en) * | 2003-02-28 | 2004-01-28 | 赵正辉 | Calibrating appts. for loaded test of sand mixing truck and liquid flow and sand flow |
| CN2767974Y (en) * | 2004-12-17 | 2006-03-29 | 张祖明 | Microcomputer controlled water meter calibrating apparatus |
| CN201852622U (en) * | 2010-11-09 | 2011-06-01 | 南京市计量监督检测院 | Automatic capacity calibration device for tank truck |
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