CN103487119A - Full-automatic error correction checking device for electronic water meter and method thereof - Google Patents
Full-automatic error correction checking device for electronic water meter and method thereof Download PDFInfo
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- CN103487119A CN103487119A CN201310459368.XA CN201310459368A CN103487119A CN 103487119 A CN103487119 A CN 103487119A CN 201310459368 A CN201310459368 A CN 201310459368A CN 103487119 A CN103487119 A CN 103487119A
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Abstract
The invention discloses a full-automatic error correction checking device for an electronic water meter and a method thereof. A water pipe of a two-row type multi-meter-position meter checking work table is sequentially and fixedly provided with a water outlet pressure sensor, a plurality of water meters to be tested, one ends of a plurality of flow electric ball valves, a water inlet pressure sensor and a temperature sensor. The two-row type multi-meter-position meter checking work table is fixedly provided with a plurality of error analyzing and processing extension units corresponding to the water meters to be tested, and the error analyzing and processing extension units are connected with the water meters to be tested in a one-to-one corresponding mode through a five-star wire. The error analyzing and processing extension units are respectively connected with a control system host computer. The other ends of the flow electric ball valves are connected with a work measuring cylinder through a rotor flow meter. The bottom of the work measuring cylinder is provided with an electronic weighing device connected with weighing display equipment. According to the full-automatic error correction checking device, full automatic checking and error correcting are achieved through a single-chip microprocessor control mechanism with an embedded system as a main part, operation is simple, the check efficiency can be improved, and human factors are reduced.
Description
Technical field
The present invention relates to calibration equipment and method thereof, relate in particular to a kind of full-automatic error correction calibration equipment and method thereof of electronic water meter.
Background technology
Current water meter all trades and professions is used widely, and along with the develop rapidly of electronic information technology, electric water meter also becomes the developing direction of water meter industry gradually.The vertification regulation that the enterprise of production water meter or metrological service need to formulate according to relevant departments the error of indication of these water meters carries out performance detecting.The national metrological verification regulations regulation, must commonly use three flow point tolerance calibratings such as flow, boundary flow, minimum flow to water meter.Collecting method is the most frequently used detection method, it is that the water yield of tested water meter of flowing through is collected in one or several container, and by Static Volumetric Method or the static weighing method measuring vessel water yield, the testing person needs manual three switching discharges, read for four times by the water gauge registration and carry out standard measuring device liquid level gauge water level for three times and read, these data of manual record the indicating value that calculates various errors and water meter compare, and determine the error of indication of water meter.In whole verification process, the testing person needs the operation of real-time control verification device, manually when reading various registration, need valve-off to wait for liquid level stabilizing in standard capacity measure, the stability in these start and stop stages, the parallax error of level readings, by water gauge indicating graduation resolution and artificial origin, all will be affected the calibration precision.Numerous defects such as the workload that this calibrating mode exists is large, efficiency is low, precision is low, personal error is large, verification result is not objective.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of full-automatic error correction calibration equipment and method thereof of electronic water meter is provided.
The full-automatic error checking correcting device of electronic water meter comprises spinner-type flowmeter, the display device of weighing, error analysis are processed extension set, control system main frame, five-pointed star line, water delivering orifice pressure transducer, work graduated cylinder, electronic weighing appliance, temperature sensor, water inlet pressure transducer, flow electrical ball valve, electric water meter to be measured, be fixed with in turn the water delivering orifice pressure transducer on water pipe on double-row type multi-epitope calibration worktable, a plurality of water meters to be measured, a plurality of flow electrical ball valve one ends, the water inlet pressure transducer, temperature sensor, be fixed with a plurality of error analyses corresponding with a plurality of water meters to be measured and process extension set on double-row type multi-epitope calibration worktable, and corresponding connected one by one with the five-pointed star line, a plurality of error analyses are processed extension set and are connected with the control system main frame respectively, a plurality of flow electrical ball valve other ends are connected with the work graduated cylinder by spinner-type flowmeter respectively, work graduated cylinder bottom is provided with electronic weighing appliance, electronic weighing appliance is connected with the display device of weighing.
Described water meter to be measured is the full-electronic water meter.On the master control borad of described control system main frame, provide setting, exhaust, correction, initiating, reset function button, can carry out water consumption, meter constant, flow velocity L/h, platform potential coefficient %, the setting of correction factor % parameter, complete corresponding verification correction operation.
The step of the full-automatic error checking modification method of electronic water meter is as follows:
1) by the water pipe on water meter access double-row type multi-epitope calibration worktable to be measured, manually open water intaking valve, outlet valve;
2) corresponding check working environment is set, tested water temperature is according to cold water meter or hot water gauge setting, and cold water meter is no more than 30 ℃; It is 1.0Mpa that hot water gauge is no more than 90 ℃, maximum allowable working pressure;
3) the shown weight by the display device of weighing, water temperature during test, different densities is scaled volume
the volume shown with water meter to be measured compares, and draws error,
△ table=V wherein
table-V
just, the error of indication of this water meter to be measured during test point for this reason, repeatable operation like this, what for error, exceed is debugged or is revised, and makes it finally reach zero error;
4) processing extension set by the five-pointed star line on water meter to be measured and error analysis is connected, corresponding pulse value is set or the corresponding equivalent value of water meter is preset value after the water meter production and assembly complete by the control system main frame, finally compare, draw error, water meter to be measured is as overproof in occurred, can by the control panel on the control system main frame " check key " is proofreaied and correct, as the test after the extension set error display on be+2%, to his compensation-2%, if-3% to it the compensation 3%, finally reach zero error.
The present invention be take embedded system and is that main Single-chip Controlling mechanism realizes full automatic verification and error correction, simple to operate, energy decrease human resources, raising verification efficiency and lifting calibration accuracy, minimizing personal error and detection operate fully standard compliant
The accompanying drawing explanation
Fig. 1 is the structural representation of the full-automatic error correction calibration equipment of electronic water meter;
Fig. 2 is the error correction curve map (Q in figure of the full-automatic error correction method of calibration of electronic water meter that realizes of the present invention
1represent minimum flow, Q
2representative boundary flow, Q
3representative flow commonly used, Q
4represented current-carrying capacity)
Embodiment
The present invention is further illustrated by reference to the accompanying drawings now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present invention in a schematic way, therefore only shows the formation relevant with the present invention.
As shown in Figure 1, the full-automatic error checking correcting device of electronic water meter comprises spinner-type flowmeter 1, the display device 2 of weighing, error analysis are processed extension set 3, control system main frame 4, five-pointed star line 5, water delivering orifice pressure transducer 6, work graduated cylinder 7, electronic weighing appliance 8, temperature sensor 9, water inlet pressure transducer 10, flow electrical ball valve 11, electric water meter to be measured 12, be fixed with in turn water delivering orifice pressure transducer 6 on water pipe on double-row type multi-epitope calibration worktable, a plurality of water meters to be measured 12, a plurality of flow electrical ball valve 11 1 ends, water inlet pressure transducer 10, temperature sensor 9, be fixed with a plurality of error analyses corresponding with a plurality of water meters 12 to be measured and process extension set 3 on double-row type multi-epitope calibration worktable, and corresponding connected one by one with five-pointed star line 5, a plurality of error analyses are processed extension set 3 and are connected with control system main frame 4 respectively, a plurality of flow electrical ball valve 11 other ends are connected with work graduated cylinder 7 by spinner-type flowmeter 1 respectively, work graduated cylinder 7 bottoms are provided with electronic weighing appliance 8, electronic weighing appliance 8 is connected with the display device 2 of weighing.
Described water meter to be measured 12 is the full-electronic water meter.On the master control borad of described control system main frame 4, provide setting, exhaust, correction, initiating, reset function button, can carry out water consumption, meter constant, flow velocity L/h, platform potential coefficient %, the setting of correction factor % parameter, complete corresponding verification correction operation.
The step of the full-automatic error checking modification method of electronic water meter is as follows:
1) by the water pipe on water meter 12 access double-row type multi-epitope calibration worktable to be measured, manually open water intaking valve, outlet valve;
2) corresponding check working environment is set, tested water temperature is according to cold water meter or hot water gauge setting, and cold water meter is no more than 30 ℃; It is 1Mpa that hot water gauge is no more than 90 ℃, maximum allowable working pressure;
3) by the shown weight of display device 2 of weighing, water temperature during test, different densities is scaled volume
the volume shown with water meter 12 to be measured compares, and draws error,
△ table=V wherein
table-V
just, the error of indication of this water meter 12 to be measured during test point for this reason, repeatable operation like this, what for error, exceed is debugged or is revised, and makes it finally reach zero error;
4) processing extension set 3 by the five-pointed star line 5 on water meter 12 to be measured and error analysis is connected, corresponding pulse value is set or the corresponding equivalent value of water meter is preset value after the water meter production and assembly complete by control system main frame 4, finally compare, draw error, water meter 12 to be measured is as overproof as appearance, can by the control panel on control system main frame 4 " check key " is proofreaied and correct, as the test after the extension set error display on be+2%, to his compensation-2%, if-3% to it the compensation 3%, finally reach zero error.
Embodiment
By several electric water meters 12 to be measured, be arranged on checking table, check and confirm that each water meter to be measured all installs, water flowing, make current flow to from inlet valve 10, passes through successively testing conduit, water meter 12 to be measured, flow motorized adjustment ball valve 11, flowmeter 1, to work graduated cylinder 7, finally flows out from electronics balance and weighing device 8, forms a loop.When the stability of flow of flowmeter 1, carry out electronic weighing appliance 8 meterings and electronic type water meter 12 to be measured and calculate, control system main frame 4 extracts the actual metered value and electronic type water meter value to be measured carries out the data processing.The comparative result data can be processed extension set 3 by error analysis and show.
Technical requirement of the present invention:
1) electronic scales: the high-precision industrial electronic scale of accuracy value 5 ɡ;
2) the high sensitivity pressure transducer of pressure transducer :-0.1～2.5Mpa;
3) temperature sensor: the numeral of 0～50 ℃ shows high sensor;
4) environmental baseline is as follows:
Ambient air temperature: 20 ℃ ± 5 ℃
Envionmental humidity: 60% ± 15%;
Ambient pressure: 86kPa～106kPa
Supply voltage: nominal voltage (U
nom), franchise ± 5%;
Supply frequency: nominal frequency, franchise ± 2%;
The concrete steps of the full-automatic error checking modification method of electronic water meter are as follows:
1) install on automatic check device and treat water gauge 12, open inlet valve, click the exhausting key on control system host service function interface, start working, transmit numerical value to control system main frame 4 by water inlet pressure transducer 10, start to vacuumize, start discharge and treat the air in water gauge 12 and test pipeline section, make vacuum tightness reach setting value, make to form negative pressure state in institute's water meter 12 inner chambers to be measured and test pipeline, so that can fill water meter to be measured and test pipeline fully after injecting the test water, avoid producing bubble phenomenon.Vacuumize and finish rear valve-off, finish automatic vent work.
2) after automatic vent finishes, the control system main frame sends the water inlet instruction, total water intaking valve is opened in control, electronic weighing appliance 8, each flow motorized adjustment ball valve 11, give water meter 12 water-fillings to be measured, by the water inlet pressure transducer, transmits numerical value to control system main frame 4, when force value reaches setting value, (when electronic-weighing display device 2 readings are 0), stop discharging water.Keep pressure to open total water intaking valve after 1 minute, each flow motorized adjustment ball valve 11 carries out draining, closes total water intaking valve 10 after certain hour, and each flow electric control valve 11 finishes voltage-withstand test.
3) flow Q3 test commonly used: after voltage-withstand test finishes, the control system main frame sends and starts the calibration instruction, total water intaking valve is opened in control, 10, flow regulation ball valve 11 commonly used, water meter 12 work to be measured, when waterflow stabilization, the switching current enter in work graduated cylinder 7, synchronously carry out electronic weighing appliance 8 meterings and the metering of electronic water meter reading, while reaching electronics balance and weighing device 8 variable of setting, the control system main frame provides actual metered value and the electronic water meter reading value in the work graduated cylinder to carry out the data processing relatively, simultaneously by the actual temperature value of temperature sensor 9 feedback test waters, by the shown weight of display device 2 of weighing, water temperature during test, different densities is scaled volume
the volume shown with water meter 12 to be measured compares, and draws error,
wherein at the beginning of △ table=V table-V, the error of indication of this water meter 12 to be measured during test point, open the water in the emptying flow work graduated cylinder commonly used of flow control valve commonly used for this reason, closes flow work graduated cylinder variable valve commonly used, finishes the detection of flow commonly used.
4) if error amount exceeds setting range, corresponding pulse value is set or the corresponding equivalent value of water meter is preset value after the water meter production and assembly complete by control system main frame 4, finally compare, draw error, water meter to be measured 12 as occur overproof, can by the control panel on control system main frame 4 " check key " is proofreaied and correct, as the test after the extension set error display on be+2%, to he the compensation-2%, if-3% to it the compensation 3%, finally reach zero error.
5) boundary flow Q2 detects: after flow detection commonly used finishes, the control system main frame sends and starts the calibration instruction, total water intaking valve 10 is opened in control, boundary flow regulation ball valve 11, water meter 12 work to be measured, when waterflow stabilization, the switching current enter in work graduated cylinder 7, synchronously carry out electronic weighing appliance 8 meterings and the metering of electronic water meter reading, while reaching electronics balance and weighing device 8 variable of setting, the control system main frame provides actual metered value and the electronic water meter reading value in the work graduated cylinder to carry out the data processing relatively, simultaneously by the actual temperature value of temperature sensor 9 feedback test waters, by the shown weight of display device 2 of weighing, water temperature during test, different densities is scaled volume
the volume shown with water meter 12 to be measured compares, and draws error,
wherein at the beginning of △ table=V table-V, the error of indication of this water meter 12 to be measured during test point, close total water intaking valve for this reason, minimum flow is regulated ball valve, open the water in the emptying boundary flow of boundary flow control valve work graduated cylinder, close boundary flow work graduated cylinder variable valve, finish the detection of boundary flow.
6) minimum flow Q1 detects: after the boundary flow detection finishes, the control system main frame sends and starts the calibration instruction, total water intaking valve 10 is opened in control, minimum flow is regulated ball valve 11, water meter 12 work to be measured, when waterflow stabilization, the switching current enter in work graduated cylinder 7, synchronously carry out electronic weighing appliance 8 meterings and the metering of electronic water meter reading, while reaching electronics balance and weighing device 8 variable of setting, the control system main frame provides actual metered value and the electronic water meter reading value in the work graduated cylinder to carry out the data processing relatively, simultaneously by the actual temperature value of temperature sensor 9 feedback test waters, by the shown weight of display device 2 of weighing, water temperature during test, different densities is scaled volume
the volume shown with water meter 12 to be measured compares, and draws error,
wherein at the beginning of △ table=V table-V, the error of indication of this water meter 12 to be measured during test point for this reason, close total water intaking valve, minimum flow is regulated ball valve, open the water in the emptying minimum flow work of minimum flow regulating valve graduated cylinder, close minimum flow work graduated cylinder variable valve, finish the detection of minimum flow boundary flow.
7) as overproof in found, corresponding pulse value is set or the corresponding equivalent value of water meter is preset value after the water meter production and assembly complete by control system main frame 4, finally compare, draw error, water meter to be measured 12 as occur overproof, can by the control panel on control system main frame 4 " check key " is proofreaied and correct, as the test after the extension set error display on be+2%, to he the compensation-2%, if-3% to it the compensation ﹢ 3%, finally reach zero error.
8) complete verification, " resetting " key by the control system main frame, make each operation valve get back to virgin state, prepares to carry out the detection of next round water meter to be measured.
Claims (4)
1. the full-automatic error checking correcting device of an electronic water meter, is characterized in that comprising spinner-type flowmeter (1), the display device of weighing (2), error analysis processing extension set (3), control system main frame (4), five-pointed star line (5), water delivering orifice pressure transducer (6), work graduated cylinder (7), electronic weighing appliance (8), temperature sensor (9), water inlet pressure transducer (10), flow electrical ball valve (11), electric water meter to be measured (12), be fixed with in turn water delivering orifice pressure transducer (6) on water pipe on double-row type multi-epitope calibration worktable, a plurality of water meters to be measured (12), a plurality of flow electrical ball valve (11) one ends, water inlet pressure transducer (10), temperature sensor (9), be fixed with a plurality of error analyses corresponding with a plurality of water meters to be measured (12) and process extension set (3) on double-row type multi-epitope calibration worktable, and corresponding connected one by one with five-pointed star line (5), a plurality of error analyses are processed extension set (3) and are connected with control system main frame (4) respectively, a plurality of flow electrical ball valves (11) other end is connected with work graduated cylinder (7) by spinner-type flowmeter (1) respectively, work graduated cylinder (7) bottom is provided with electronic weighing appliance (8), electronic weighing appliance (8) is connected with the display device of weighing (2).
2. the full-automatic error checking correcting device of a kind of electronic water meter according to claim 1, is characterized in that described water meter to be measured (12) is the full-electronic water meter.
3. the full-automatic error checking correcting device of a kind of electronic water meter according to claim 1, it is characterized in that on the master control borad of described control system main frame (4), setting, exhaust, correction, initiating, reset function button are provided, can carry out water consumption, meter constant, flow velocity L/h, platform potential coefficient %, the setting of correction factor % parameter, complete corresponding verification correction operation.
4. the full-automatic error checking modification method of the electronic water meter that a use is installed as claimed in claim 1, it is characterized in that: its step is as follows:
1) by the water pipe on water meter to be measured (12) access double-row type multi-epitope calibration worktable, manually open water intaking valve, outlet valve;
2) corresponding check working environment is set, tested water temperature is according to cold water meter or hot water gauge setting, and cold water meter is no more than 30 ℃; It is 1.0Mpa that hot water gauge is no more than 90 ℃, maximum allowable working pressure;
3) by the shown weight of the display device of weighing (2), water temperature during test, different densities is scaled volume
4) processing extension set (3) by the five-pointed star line (5) on water meter to be measured (12) and error analysis is connected, corresponding pulse value is set or the corresponding equivalent value of water meter is preset value after the water meter production and assembly complete by control system main frame (4), finally compare, draw error, water meter to be measured (12) is as overproof in occurred, can by the control panel on control system main frame (4) " check key " is proofreaied and correct, as the test after the extension set error display on be+2%, to his compensation-2%, if-3% to it the compensation ﹢ 3%, finally reach zero error.
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| CN105509845A (en) * | 2015-12-15 | 2016-04-20 | 安徽晋煤中能化工股份有限公司 | Online pulverized coal flow correction system |
| CN105823533A (en) * | 2016-06-17 | 2016-08-03 | 宁波明泰流量设备有限公司 | Double-clock detecting method for flowmeter |
| CN105953870A (en) * | 2016-07-18 | 2016-09-21 | 苏州北通智能科技有限公司 | Automatic water meter test board |
| CN106568492A (en) * | 2016-11-03 | 2017-04-19 | 江苏金钰铭电子有限公司 | Water meter verification and examination method |
| CN107782411A (en) * | 2016-08-25 | 2018-03-09 | 联阳半导体股份有限公司 | Liquid level detector and liquid level detection method |
| CN108196598A (en) * | 2018-03-05 | 2018-06-22 | 昆山鼎工业科技有限公司 | A kind of on-line automatic medicine system of continuous metal surface disposing line and its adding method thereof |
| CN109596194A (en) * | 2019-01-30 | 2019-04-09 | 深圳市普颂电子有限公司 | Spinner flowmeter corrects system and bearing calibration |
| CN109781217A (en) * | 2019-01-26 | 2019-05-21 | 江苏金钰铭电子有限公司 | A kind of detection device for water meter |
| CN110095169A (en) * | 2019-04-21 | 2019-08-06 | 优艾特仪表科技成都有限公司 | A kind of ultrasonic water meter calibration equipment and method of calibration |
| CN110914650A (en) * | 2017-07-26 | 2020-03-24 | 奥加诺株式会社 | Water dispenser and calibration method thereof |
| CN111649808A (en) * | 2020-05-29 | 2020-09-11 | 江苏德高物联技术有限公司 | SCADA-based water supply network flow instrument adaptation rationality analysis method |
| CN112179458A (en) * | 2020-09-30 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Full-automatic error correction calibrating device of electronic water meter |
| CN112179459A (en) * | 2020-09-30 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Water meter load detection device for simulating water meter use environment |
| CN113188579A (en) * | 2021-02-24 | 2021-07-30 | 常德市计量测试检定所 | Measurement check out test set |
| CN113310555A (en) * | 2021-06-10 | 2021-08-27 | 上海市供水水表强制检定站有限公司 | Water meter online calibration method, system, device and storage medium |
| CN114235101A (en) * | 2021-11-19 | 2022-03-25 | 湖南威铭能源科技有限公司 | Method and system for calculating measurement error of electronic water meter |
| CN118190118A (en) * | 2024-05-17 | 2024-06-14 | 河南省水务规划设计研究有限公司山西分公司 | Intelligent water meter error coefficient testing system, testing method and correcting method |
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| CN105509845A (en) * | 2015-12-15 | 2016-04-20 | 安徽晋煤中能化工股份有限公司 | Online pulverized coal flow correction system |
| CN105823533A (en) * | 2016-06-17 | 2016-08-03 | 宁波明泰流量设备有限公司 | Double-clock detecting method for flowmeter |
| CN105953870A (en) * | 2016-07-18 | 2016-09-21 | 苏州北通智能科技有限公司 | Automatic water meter test board |
| CN107782411A (en) * | 2016-08-25 | 2018-03-09 | 联阳半导体股份有限公司 | Liquid level detector and liquid level detection method |
| CN106568492A (en) * | 2016-11-03 | 2017-04-19 | 江苏金钰铭电子有限公司 | Water meter verification and examination method |
| CN110914650B (en) * | 2017-07-26 | 2020-09-11 | 奥加诺株式会社 | Water dispenser and calibration method thereof |
| CN110914650A (en) * | 2017-07-26 | 2020-03-24 | 奥加诺株式会社 | Water dispenser and calibration method thereof |
| CN108196598A (en) * | 2018-03-05 | 2018-06-22 | 昆山鼎工业科技有限公司 | A kind of on-line automatic medicine system of continuous metal surface disposing line and its adding method thereof |
| CN109781217A (en) * | 2019-01-26 | 2019-05-21 | 江苏金钰铭电子有限公司 | A kind of detection device for water meter |
| CN109596194A (en) * | 2019-01-30 | 2019-04-09 | 深圳市普颂电子有限公司 | Spinner flowmeter corrects system and bearing calibration |
| CN110095169A (en) * | 2019-04-21 | 2019-08-06 | 优艾特仪表科技成都有限公司 | A kind of ultrasonic water meter calibration equipment and method of calibration |
| CN111649808A (en) * | 2020-05-29 | 2020-09-11 | 江苏德高物联技术有限公司 | SCADA-based water supply network flow instrument adaptation rationality analysis method |
| CN111649808B (en) * | 2020-05-29 | 2022-07-01 | 江苏德高物联技术有限公司 | SCADA-based water supply network flow instrument adaptation rationality analysis method |
| CN112179458A (en) * | 2020-09-30 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Full-automatic error correction calibrating device of electronic water meter |
| CN112179459A (en) * | 2020-09-30 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Water meter load detection device for simulating water meter use environment |
| CN112179459B (en) * | 2020-09-30 | 2023-12-05 | 湖南常德牌水表制造有限公司 | Water meter load detection device for simulating water meter use environment |
| CN113188579A (en) * | 2021-02-24 | 2021-07-30 | 常德市计量测试检定所 | Measurement check out test set |
| CN113188579B (en) * | 2021-02-24 | 2023-03-07 | 常德市计量测试检定所 | Measurement check out test set |
| CN113310555A (en) * | 2021-06-10 | 2021-08-27 | 上海市供水水表强制检定站有限公司 | Water meter online calibration method, system, device and storage medium |
| CN114235101A (en) * | 2021-11-19 | 2022-03-25 | 湖南威铭能源科技有限公司 | Method and system for calculating measurement error of electronic water meter |
| CN118190118A (en) * | 2024-05-17 | 2024-06-14 | 河南省水务规划设计研究有限公司山西分公司 | Intelligent water meter error coefficient testing system, testing method and correcting method |
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