CN107782417A - High precision in control fluid flowmeter (instrument) on-line calibration device - Google Patents
High precision in control fluid flowmeter (instrument) on-line calibration device Download PDFInfo
- Publication number
- CN107782417A CN107782417A CN201610786123.1A CN201610786123A CN107782417A CN 107782417 A CN107782417 A CN 107782417A CN 201610786123 A CN201610786123 A CN 201610786123A CN 107782417 A CN107782417 A CN 107782417A
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- China
- Prior art keywords
- flowmeter
- control
- calibration
- high precision
- control fluid
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- 239000012530 fluid Substances 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000005259 measurement Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000004164 analytical calibration Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/17—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters using calibrated reservoirs
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
High precision in control fluid flowmeter on-line calibration device is related to a kind of calibration of fluid flowmeter, more particularly to a kind of device of the small micro-flowmeter instrument calibration of liquid.Provided with for the High-precision standard measuring device as measurement standard；For controlling the three-way solenoid valve of controlling flow direction；For the high-definition camera for recording tested flowmeter starting, terminating time point data on flows；For obtaining the liquid level sensor of liquid level height；For realizing the LCD controller and signal data line that automatically control；For intaking, water outlet, the composition such as connecting line of draining.
Description
Technical field
The present invention relates to a kind of calibration of fluid flowmeter (instrument), more particularly to the one of the small micro-flowmeter instrument calibration of liquid
Kind device.
Background technology
Fluid flowmeter, flow integrator (hereinafter referred to as flowmeter) belong to metrical instrument, are widely used in chemical industry, stone
The metering of the industry in terms of fluid flow such as oily, medical, food and bathroom, hot-water heating, fire-fighting equipment, the country is on liquid at present
The calibration of flowmeter mainly divides two ways：Flowmeter calibrating and measuring is sent to first, the tested flowmeter for intending calibration is disassembled
Calibrated in laboratory；Second, it is counted as, to calibrate standard, being carried to scene to tested with high-precision ultrasonic liquid flow
Flowmeter carries out on-line checking calibration.The shortcomings that first way is exactly：1, return dress very after the dismounting and calibration well of flowmeter
Trouble, the small micro-flowmeter being especially mounted to inside testing machine platform；2, more than one week is at least also wanted from dismounting censorship to fetching,
User will be unable to normally be produced in the meantime, test；3, because the calibrating and measuring laboratory equipment investment of flowmeter is high, field
Ground takes big, can carry out that the laboratory of flowmeter calibrating and measuring is seldom, and normally only metering institute above the provincial level just possesses, therefore at present
Censorship is very inconvenient.The shortcomings that second way is：1, it is adapted to take the high-precision ultrasound as standard that calibration is gone at scene to
Low is 0.5 grade (one side of higher precision grade is expensive, is on the other hand also not suitable for operating at the scene), it is impossible to
0.5 grade of flowmeter being widely used to scene is calibrated；2, as standard ultrasonic flowmeter for mounting condition
And the requirement such as parameter setting is very high, it is desirable to has certain straight length and installing space, must also accurately grasp tested flowmeter place
The pipe diameter size of pipeline, wall thickness dimension, pipeline material, the parameter such as material of back boxing and overcoat, otherwise all by measurement
The error of indication has an impact；3, in calibration process, calibration personnel need to read tested flowmeter simultaneously in the starting point of value and do
For the indicating value on the ultrasonic flowmeter of standard, operationally exist very big in the presence of certain difficulty, acquired data
Uncertainty error.
The content of the invention
Dismantle, send outside in order to overcome flow meter calibrating existing way to need, waiting, installing or to environmental requirement is high, error is big,
The shortcomings of inconvenient, the invention provides it is a kind of can automatically control, exempt from dismounting, can on-line checking high precision flow calibration cartridge
Put.
(exemplified by second-class, its maximum tolerance is not provided with the High-precision standard measuring device being used for as measurement standard by the present invention
More than 0.25ml)；For controlling the three-way solenoid valve of controlling flow direction；For recording tested flowmeter starting, terminating at the time of point
The high-definition camera of data on flows；For obtaining the liquid level sensor of liquid level height；For realizing the liquid crystal automatically controlled
Display controller and signal data line；For liquid influent, water outlet, draining the composition such as pipeline.
Concrete technical scheme is used by the present invention solves its technical problem：By be detected flowmeter pipeline water side with
One end of the water inlet pipe of the present apparatus is connected, and the other end of present apparatus water inlet pipe is connected to the water inlet of three-way solenoid valve, water outlet
Pipe one end is connected to the delivery port of magnetic valve, and the other end inserts the water inlet of standard measuring device, connects from the discharge outlet of three-way solenoid valve
Connect the back pool that a drainpipe leads to scene；The inductive head of liquid level sensor is arranged in standard measuring device, by signal wire with
LCD controller connects；The data display screen of the tested flowmeter of high-definition camera alignment is simultaneously brought into focus, passes through data wire
Directly it is connected with LCD controller.So, the liquid for tested flowmeter being flowed through under non-detection status passes through electromagnetic three-way
The drainpipe of valve all flows into back pool.When detection work starts, start the start button of LCD controller, video camera
The display data during test starting of the moment tested flowmeter is taken, while three-way solenoid valve closes discharge outlet, opens water outlet
Mouthful, liquid is all flowed into by outlet pipe in standard measuring device, at this moment the liquid level in standard measuring device is gradually increasing, and works as standard measuring device
When interior liquid level rises to the inductive head for touching liquid level sensor, LCD controller, which starts, terminates knob, and video camera takes
Shown data at the end of the test of the moment tested flowmeter, while three-way solenoid valve closes delivery port, opens discharge outlet,
Liquid is set all to flow into back pool by drainpipe.Liquid capacity shown on standard measuring device is read afterwards as standard to show
Value, read the tested flowmeter on two photos and terminate and data on flows during starting, with reference to being recorded on LCD controller
Beginning and ending time interval carry out data processing can be obtained by accurately be detected flowmeter calibration data.
The beneficial effects of the invention are as follows the high precision in control on-line calibration for realizing flowmeter.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram when embodiment of the present invention is introduced into detection working condition.
Fig. 2 is the schematic diagram when embodiment of the present invention enters detection working condition.
Embodiment
In Fig. 1, the liquid of tested flowmeter 3 is flowed through from water inlet pipe 4 after three-way solenoid valve 5, from the whole stream of drainpipe 7
Enter the back pool at scene.This calibrating installation starts detection start program, high-definition camera after pressing the beginning knob on controller 1
2 take the test initial flow data of its display of this moment, now, the draining of three-way solenoid valve 5 against tested flowmeter 3
Mouth is closed, delivery port is opened, and liquid is all flowed into standard measuring devices 9 by outlet pipe 6, as shown in Figure 2.When in standard measuring device 9
Liquid level when rising to the inductive head for touching liquid level sensor 8, controller 1 starts detection and terminates program, and high-definition camera 2 is opposite
The test that tested flowmeter 3 takes its display of this moment terminates data on flows, and now, the delivery port of three-way solenoid valve 5 closes
Close, discharge outlet unlatching, liquid passes through drainpipe 7 and all flowed into back pools.Liquid shown on standard measuring device 9 is read afterwards
Volume reads data on flows when the tested flowmeter on two photos is terminated and originated, with reference to controller 1 as standard indicating value
Indicating value of the beginning and ending time interval after data processing as tested flowmeter of upper display, it is possible to be accurately detected flow
The calibration data of meter.
Claims (6)
1. high precision in control fluid flowmeter on-line calibration device is provided with High-precision standard measuring device, three-way solenoid valve, high definition
Video camera, liquid level sensor, LCD controller, it is characterized in that：Provided with High-precision standard measuring device as measurement and calibration principal mark
Quasi- device, high-definition camera precisely record test starting and end time point related data, electromagnetic cross valve control liquid flow direction, liquid
Level sensor controls the testing time, and LCD controller realizes time record and the programme-control of test process.
2. high precision in control fluid flowmeter on-line calibration device according to claim 1, it is characterized in that：Using height
Main Regulator of the accuracy standard measuring device as measurement and calibration, flexibly configurable phase different according to the model specification of tested flowmeter
The model specification standard measuring device of adaptation.
3. high precision in control fluid flowmeter on-line calibration device according to claim 1, it is characterized in that：High definition is taken the photograph
The control line of camera and liquid crystal display control are connected, can precisely shoot tested flowmeter test starting and at the end of institute on panel
The photo of display data, realize the accurate recording of test data.
4. high precision in control fluid flowmeter on-line calibration device according to claim 1, it is characterized in that：Electromagnetism three
Port valve can complete the control to liquid flow direction in test process under the programme-control of LCD controller.
5. high precision in control fluid flowmeter on-line calibration device according to claim 1, it is characterized in that：Pass through liquid
Level sensor obtains signal and feeds back to LCD controller, realizes the control to the testing time.
6. high precision in control fluid flowmeter on-line calibration device according to claim 1, it is characterized in that：Liquid crystal
Show that controller internal memory contains the flowmeter calibration test program woven, the automatic of flowmeter calibration process is realized by program
Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610786123.1A CN107782417A (en) | 2016-08-26 | 2016-08-26 | High precision in control fluid flowmeter (instrument) on-line calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610786123.1A CN107782417A (en) | 2016-08-26 | 2016-08-26 | High precision in control fluid flowmeter (instrument) on-line calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107782417A true CN107782417A (en) | 2018-03-09 |
Family
ID=61451046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610786123.1A Pending CN107782417A (en) | 2016-08-26 | 2016-08-26 | High precision in control fluid flowmeter (instrument) on-line calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107782417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061708A (en) * | 2021-11-01 | 2022-02-18 | 湖州市检验检测中心 | High-precision automatic control liquid flowmeter (instrument) on-line calibration device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752722A (en) * | 2004-09-24 | 2006-03-29 | 深圳市建恒工业自控系统有限公司 | Dynamic transmission type capacity verification system and calibration method |
| CN102042856A (en) * | 2009-10-16 | 2011-05-04 | 中国计量科学研究院 | Device and method for automatically metering and calibrating horizontal tank capacity based on standard metal tank |
| CN102519556A (en) * | 2011-12-02 | 2012-06-27 | 北京航空航天大学 | Method for calibrating heavy-caliber electromagnetic flowmeter on line |
| CN103267559A (en) * | 2013-05-16 | 2013-08-28 | 中国计量学院 | Automatic volume verification method and device for oil tank truck |
| CN105043488A (en) * | 2015-07-06 | 2015-11-11 | 中国计量学院 | Automatic ship cabin capacity calibrating device and method based on cloud service platform |
| CN205373831U (en) * | 2015-12-31 | 2016-07-06 | 苏州市计量测试研究所 | On --spot automatic correcting device of fluidflowmeter based on wireless connection |
| CN206593728U (en) * | 2016-08-26 | 2017-10-27 | 厦门精量校准检测技术有限公司 | High precision in control fluid flowmeter on-line calibration device |
-
2016
- 2016-08-26 CN CN201610786123.1A patent/CN107782417A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752722A (en) * | 2004-09-24 | 2006-03-29 | 深圳市建恒工业自控系统有限公司 | Dynamic transmission type capacity verification system and calibration method |
| CN102042856A (en) * | 2009-10-16 | 2011-05-04 | 中国计量科学研究院 | Device and method for automatically metering and calibrating horizontal tank capacity based on standard metal tank |
| CN102519556A (en) * | 2011-12-02 | 2012-06-27 | 北京航空航天大学 | Method for calibrating heavy-caliber electromagnetic flowmeter on line |
| CN103267559A (en) * | 2013-05-16 | 2013-08-28 | 中国计量学院 | Automatic volume verification method and device for oil tank truck |
| CN105043488A (en) * | 2015-07-06 | 2015-11-11 | 中国计量学院 | Automatic ship cabin capacity calibrating device and method based on cloud service platform |
| CN205373831U (en) * | 2015-12-31 | 2016-07-06 | 苏州市计量测试研究所 | On --spot automatic correcting device of fluidflowmeter based on wireless connection |
| CN206593728U (en) * | 2016-08-26 | 2017-10-27 | 厦门精量校准检测技术有限公司 | High precision in control fluid flowmeter on-line calibration device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061708A (en) * | 2021-11-01 | 2022-02-18 | 湖州市检验检测中心 | High-precision automatic control liquid flowmeter (instrument) on-line calibration device |
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Application publication date: 20180309 |