CN106768206A - Portable gas ultrasonic flowmeter calibrating device - Google Patents
Portable gas ultrasonic flowmeter calibrating device Download PDFInfo
- Publication number
- CN106768206A CN106768206A CN201710028902.XA CN201710028902A CN106768206A CN 106768206 A CN106768206 A CN 106768206A CN 201710028902 A CN201710028902 A CN 201710028902A CN 106768206 A CN106768206 A CN 106768206A
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- CN
- China
- Prior art keywords
- ultrasonic flowmeter
- flow computer
- portable gas
- gas ultrasonic
- explosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims description 14
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 238000003556 assay Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 29
- 238000005259 measurement Methods 0.000 description 11
- 238000011156 evaluation Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000013102 re-test Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000032258 transport Effects 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
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
Landscapes
- Measuring Volume Flow (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
Abstract
The invention relates to a portable gas ultrasonic flowmeter calibrating device. The problem of current assay cycle short need frequently dismouting bring very big potential safety hazard has mainly been solved. The method is characterized in that: a direct current power supply (2) and a flow computer (3) are arranged in the explosion-proof box (1); the direct current power supply (2) is respectively connected with a charger (4) and a power switch (5); the flow computer (3) is respectively connected with a temperature transmitter (6) and a pressure transmitter (7) through joints, the flow computer (3) is connected with a notebook computer (8) through a network cable, and is connected with an ultrasonic flowmeter (9) through the joints; the flow computer (3) is connected with a power switch (5) through an electric wire. The portable gas ultrasonic flowmeter calibrating device can judge the metering performance of the gas ultrasonic flowmeter in an operating state, can realize the inspection in the use of the sonic velocity method of the ultrasonic flowmeter with lower cost, and is convenient and safe.
Description
Technical field
It is special the present invention relates to a kind of calibrating installation in ground installation during the construction of natural gas fields and gathering line metering field
It is not a kind of portable gas ultrasonic flowmeter calibrating installation of gas metering station use.
Background technology
At present, mainly using real stream calibrating, the re-testing periods are usually no more than 2 years gas ultrasonic flowmeter calibration method.Inspection
Fixed cycle is short, high cost, frequently removes and installs and transports for long-distance, and can cause certain potential safety hazard.Especially indivedual stations
There is no standby flowmeter, real stream calibrating is waited in line for a long time, production run can be had a strong impact on.
The content of the invention
The technical problems to be solved by the invention are to overcome in background technology to there are existing calibration method re-testing periods short need
Frequently dismounting brings the problem of very big potential safety hazard, and provides a kind of portable gas ultrasonic flowmeter calibrating installation, and this is portable
Formula gas ultrasonic flowmeter calibrating installation, can under operation, and the metering performance to gas ultrasonic flowmeter judges, uses
Relatively low cost is the inspection being capable of achieving in the sound velocity method use of ultrasonic flowmeter, convenient and safe.
The present invention solves its problem can be reached by following technical solution：Portable gas ultrasonic flowmeter calibrating dress
Put, including explosion-proof tank, the explosion-proof tank is built with dc source and flow computer；The dc source connects charging respectively
Device and power switch；The flow computer connects temperature transmitter, pressure transmitter respectively by joint, and flow computer leads to
Netting twine connection notebook computer is crossed, ultrasonic flowmeter is connected by joint；The flow computer connects power supply and opens by electric wire
Close.
Portable gas ultrasonic flowmeter calibrating installation principle is based on the parameter of gas ultrasonic flowmeter measurement flow velocity and surveys
The parameter of the velocity of sound is same group of parameter in amount medium, if being able to verify that the measurement velocity of sound is correct, can just judge that measurement flow velocity is
Correctly.The hardware system of calibrating installation is arranged in hand held anti-explosion case, by RS485 serial ports, directly with gas ultrasound stream
Gauge is communicated, and gathers the real-time status data and velocity of sound measurement result of flowmeter；By online to collection gas ultrasound stream
The measurement velocity of sound of gauge, is compared with standard acoustic velocity value, bulk sound velocity, each sound channel the maximum velocity of sound to gas ultrasonic flowmeter
Difference and the index such as acoustic velocity measutement repeatability judged, completes the evaluation to flowmeter metering performance；Supporting research and development it is special
Calibrating software, interface can in real time show that all configurations of ultrasonic flowmeter are set and measurement parameter, the reason of embedded stand-alone development
By velocity of sound software for calculation, pipeline condition temperature can be manually entered with the real-time status data of online acquisition flowmeter computer or offline
Degree, pressure and gas component parameter, realize the velocity of sound inspection of ultrasonic flowmeter, and generate survey report.
It is of the invention to be had the advantages that compared with above-mentioned background technology：The portable gas ultrasonic flowmeter is examined
Determine device, the metering performance of flowmeter under gas ultrasonic flowmeter running status, can be checked, the different of flowmeter is found in time
Normal ruuning situation, it is to avoid metering dispute.Carry out the velocity of sound to gas ultrasonic flowmeter by periodicity to check, it is possible to achieve extension stream
Gauge flowed the re-testing periods to 6 years in fact, so as to solve frequently to dismantle the problem of censorship gas ultrasonic flowmeter.Safe ready.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the invention.
In figure：1st, explosion-proof tank, 2, dc source, 3, flow computer, 4, charger, 5, power switch, 6, temperature pick-up
Device, 7, pressure transmitter, 8, notebook computer, 9, ultrasonic flowmeter, 10, power source surge protector.
Specific embodiment：
The invention will be further described below in conjunction with the accompanying drawings：
Shown in accompanying drawing 1, the portable gas ultrasonic flowmeter calibrating installation, including explosion-proof tank 1, the explosion-proof tank 1 is built with straight
Stream power supply 2 and flow computer 3；The dc source 2 connects charger 4 and power switch 5 respectively；The flow computer 3
Connect temperature transmitter 6, pressure transmitter 7 respectively by joint, flow computer 3 connects notebook computer 8 by netting twine, leads to
Cross RS485 joints connection ultrasonic flowmeter 9；The flow computer 3 connects power switch 5, the flow rate calculation by electric wire
Power source surge protector 10 is connected on the connection electric wire of machine 3；Above-mentioned explosion-proof tank 1 is hand held anti-explosion case 1.
The hardware system of the calibrating installation is arranged in hand held anti-explosion case, and capital equipment is flow computer, provides electricity for oneself
Source, can run more than 10 hours, and power supply can once complete the identification of 5-10 platform flowmeters.Hardware system passes through
RS485 serial ports, is directly communicated with gas ultrasonic flowmeter, gathers the real-time status data and acoustic velocity measutement knot of flowmeter
Really, can also be communicated with live flow computer, temperature, pressure and gas composition data in reading pipeline.
It is super to gas by the measurement velocity of sound of collection gas ultrasonic flowmeter, being compared with standard acoustic velocity value online
The bulk sound velocity of sonic flowmeter, each sound channel maximum velocity of sound difference and the index such as acoustic velocity measutement repeatability judged, completes convection current
The evaluation of gauge metering performance, evaluation index such as following table 1：
The evaluation index of the flowmeter metering performance of table 1
| Each maximum velocity of sound difference allowed band of sound channel measurement | 0.5 m/s |
| Velocity of sound deviation allowed band | ±0.2 % |
| Measurement reproducibility | 0.05 % |
The calibrating software of use, interface can in real time show that all configurations of ultrasonic flowmeter are set and measurement parameter, Ke Yixuan
Select online acquisition or manually enter pipeline Conditions Temperature, pressure and gas component parameter, realize the online velocity of sound of ultrasonic flowmeter
Inspection or offline velocity of sound inspection, and automatically generate and preserve survey report.
Using portable gas ultrasonic flowmeter calibrating installation to gas ultrasonic flowmeter calibration method：
（1）Connection ultrasonic flowmeter：Live ultrasonic flowmeter is connected using RS485 serial communications, it is real-time for gathering flowmeter
Status data and velocity of sound measurement result, temperature transmitter are connected to device TT interfaces, and pressure transmitter is connected to device PT interfaces,
For collecting temperature, pressure signal；Also can be communicated with live flow computer, temperature, pressure and gas group in reading pipeline
Into data；
（2）Device for opening power switch；
（3）Device is connected into calibrating notebook computer with ethernet line, computer is opened, starts inspection in ultrasonic flowmeter use
Systems soft ware, checks whether data receive completely；
（4）Checking system software is calibrating installation software kit in ultrasonic flowmeter use, is embedded with physical property of natural gas ginseng
Number software for calculation, collection signal carry out velocity of sound check problem and generation examining report automatically, as long as tested ultrasonic flowmeter is believed
Breath, gas component, calibrating points, sampling number are provided with, and such as do not connect temperature, pressure transmitter, then be manually entered every
Temperature, the pressure parameter of 1 calibrating point, you can be automatically performed the velocity of sound inspection of gas ultrasonic flowmeter, generate test report.
Claims (3)
1. a kind of portable gas ultrasonic flowmeter calibrating installation, including explosion-proof tank（1）, it is characterised in that：The explosion-proof tank
（1）Built with dc source（2）And flow computer（3）；The dc source（2）Charger is connected respectively（4）And power supply is opened
Close（5）；The flow computer（3）Temperature transmitter is connected by joint respectively（6）, pressure transmitter（7）, flow computer
（3）Notebook computer is connected by netting twine（8）, ultrasonic flowmeter is connected by joint（9）；The flow computer（3）Pass through
Electric wire connects power switch（5）.
2. portable gas ultrasonic flowmeter calibrating installation according to claim 1, it is characterised in that：The flowmeter
Calculation machine（3）Power source surge protector is connected on connection electric wire（10）.
3. portable gas ultrasonic flowmeter calibrating installation according to claim 1, it is characterised in that：The explosion-proof tank
（1）It is hand held anti-explosion case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710028902.XA CN106768206A (en) | 2017-01-16 | 2017-01-16 | Portable gas ultrasonic flowmeter calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710028902.XA CN106768206A (en) | 2017-01-16 | 2017-01-16 | Portable gas ultrasonic flowmeter calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106768206A true CN106768206A (en) | 2017-05-31 |
Family
ID=58946876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710028902.XA Pending CN106768206A (en) | 2017-01-16 | 2017-01-16 | Portable gas ultrasonic flowmeter calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106768206A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884164A (en) * | 2021-12-06 | 2022-01-04 | 成都千嘉科技有限公司 | Self-adaptive calibration method of ultrasonic gas meter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246035A (en) * | 2008-03-17 | 2008-08-20 | 成都康斯博科技有限责任公司 | Portable natural gas flow measuring and checking system |
| CN101598580A (en) * | 2009-07-24 | 2009-12-09 | 国网电力科学研究院 | A Method of Improving the Accuracy of Transit-Time Ultrasonic Flowmeter |
| CN102589656A (en) * | 2011-12-29 | 2012-07-18 | 上海中核维思仪器仪表有限公司 | Sound delay testing method and measuring device for gas ultrasonic flowmeter |
| CN202693089U (en) * | 2012-07-26 | 2013-01-23 | 中国长江三峡集团公司 | Device for detecting sound velocity of ultrasonic flowmeter on site |
| CN102967349A (en) * | 2012-11-23 | 2013-03-13 | 浙江省计量科学研究院 | Networked on-line inspection method of supersonic gas flowmeter |
-
2017
- 2017-01-16 CN CN201710028902.XA patent/CN106768206A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246035A (en) * | 2008-03-17 | 2008-08-20 | 成都康斯博科技有限责任公司 | Portable natural gas flow measuring and checking system |
| CN101598580A (en) * | 2009-07-24 | 2009-12-09 | 国网电力科学研究院 | A Method of Improving the Accuracy of Transit-Time Ultrasonic Flowmeter |
| CN102589656A (en) * | 2011-12-29 | 2012-07-18 | 上海中核维思仪器仪表有限公司 | Sound delay testing method and measuring device for gas ultrasonic flowmeter |
| CN202693089U (en) * | 2012-07-26 | 2013-01-23 | 中国长江三峡集团公司 | Device for detecting sound velocity of ultrasonic flowmeter on site |
| CN102967349A (en) * | 2012-11-23 | 2013-03-13 | 浙江省计量科学研究院 | Networked on-line inspection method of supersonic gas flowmeter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884164A (en) * | 2021-12-06 | 2022-01-04 | 成都千嘉科技有限公司 | Self-adaptive calibration method of ultrasonic gas meter |
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| PB01 | Publication | ||
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Application publication date: 20170531 |