CN107560694A - A kind of platform for flow verification and the flow verification method using the platform - Google Patents
A kind of platform for flow verification and the flow verification method using the platform Download PDFInfo
- Publication number
- CN107560694A CN107560694A CN201710771425.6A CN201710771425A CN107560694A CN 107560694 A CN107560694 A CN 107560694A CN 201710771425 A CN201710771425 A CN 201710771425A CN 107560694 A CN107560694 A CN 107560694A
- Authority
- CN
- China
- Prior art keywords
- flowmeter
- measured
- platform
- flow
- clearing instrument
- 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
Abstract
A kind of flow verification method the present invention relates to platform for flow verification and using the platform, platform include test pipeline, blower fan, frequency converter, flowmeter to be measured, proving flowmeter, the first clearing instrument, the second clearing instrument and PC；Described flowmeter and proving flowmeter to be measured is connected in series on test pipeline, blower fan is arranged on one end of test pipeline, frequency converter is connected with blower fan, for adjusting fan delivery, the first described clearing instrument is connected with flowmeter to be measured, second clearing instrument is connected with proving flowmeter, and the flow signal of flowmeter and proving flowmeter to be measured is transferred to the first clearing instrument and the second clearing instrument by electric current respectively, and the first clearing instrument and the second clearing instrument are connected with PC.Compared with prior art, the present invention has the advantages that low cost, efficiency high, simple to operate, result precision is high, reproducible.
Description
Technical field
The invention belongs to flow verification technical field, and in particular to a kind of for the platform of flow verification and using the platform
Flow verification method.
Background technology
The demarcation of flowmeter is mainly according to national regulation in enterprise, periodic verification, is generally in routine work
In the case where significant change occurs for flow, verification can be just dismantled, if the increase verification frequency, entreprise cost will increase.For
It can preferably ensure the service precision of flowmeter, and not increase the cost of enterprise, build verification platform into most economical
Way.
And current verification platform can only measure the flow of a point, it is impossible to reflect the linear problem of flowmeter, easily make
The erroneous judgement of paired flowmeter progress, it is therefore desirable to be improved to verification platform.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of cost is low, efficiency
Platform for flow verification high, simple to operate, result precision is high, reproducible and the flow verification side using the platform
Method.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of platform for flow verification, including test pipeline, blower fan, frequency converter, flowmeter to be measured, normal flow
Meter, the first clearing instrument, the second clearing instrument and PC；Described flowmeter and proving flowmeter to be measured is connected in series in test pipeline
On, blower fan is arranged on one end of test pipeline, and frequency converter is connected with blower fan, for adjusting fan delivery, the described first clearing
Instrument is connected with flowmeter to be measured, and the second clearing instrument is connected with proving flowmeter, the flow letter of flowmeter and proving flowmeter to be measured
Number it is transferred to the first clearing instrument and the second clearing instrument respectively by electric current, the first clearing instrument and the second clearing instrument connect with PC
Connect.
Preferably, described flowmeter to be measured is detachably connected with test pipeline, described proving flowmeter and testing tube
Road is fixedly connected.
Preferably, described proving flowmeter uses the flowmeter of the high at least one grade of ratio of precision flowmeter to be measured.
Preferably, described proving flowmeter uses the flowmeter of the high grade of ratio of precision flowmeter to be measured.
Preferably, the first described clearing instrument and the second clearing instrument are connected by RS communication interfaces with PC.
Preferably, the air inlet of described blower fan is connected with testing one end of pipeline, described proving flowmeter and to be measured
Flowmeter is sequentially arranged along gas flow direction.
Using the flow verification method of described platform, this method uses multiple spot method of comparison, comprised the following steps：
(a) flowmeter to be measured is installed；
(b) frequency converter is adjusted according to a series of frequency values being linearly distributed, the air quantity of blower fan is controlled, in each frequency values
Under, after fan delivery is stable, PC counts flowmeter and normal flow to be measured by the first clearing instrument and the second clearing instrument
Count the integrated flow within one identical time；
(c) a series of integrated flow of flowmeter to be measured and proving flowmeter under frequency values is contrasted, treats flow measurement gauge
Carry out flow verification.
Compared with prior art, the invention has the advantages that：
(1) as a result of existing pipeline, frequency converter, PC etc., thus the investment of costliness need not be carried out；
(2) it can fast and accurately judge whether flowmeter accuracy to be detected meets the needs of user.
(3) by variable frequency adjustment, can multiple spot compare flow repeatedly, it is ensured that the repeatability of flowmeter to be detected and accurate
Property.
(4) it is easy to operate, accurately and reliably.
Brief description of the drawings
Fig. 1 is the connection diagram of the present invention.
In figure, 1 is test pipeline, and 2 be blower fan, and 3 be frequency converter, and 4 be flowmeter to be measured, and 5 be proving flowmeter, and 6 be the
One clearing instrument, 7 be the second clearing instrument, and 8 be PC.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of platform for flow verification, as shown in figure 1, including test pipeline 1, blower fan 2, frequency converter 3, treating measurement of discharge
Meter 4, proving flowmeter 5, first settle accounts instrument 6, second and settle accounts instrument 7 and PC 8；Flowmeter 4 and proving flowmeter 5 series connection to be measured connects
It is connected on test pipeline 1, blower fan 2 is arranged on one end of test pipeline 1, and frequency converter 3 is connected with blower fan 2, for adjusting the wind of blower fan 2
Amount, the first clearing instrument 6 are connected with flowmeter 4 to be measured, and the second clearing instrument 7 is connected with proving flowmeter 5, flowmeter 4 to be measured and mark
The flow signal of quasi- flowmeter 5 is transferred to the first clearing instrument 6 and the second clearing instrument 7 respectively by 4~20mA current signals, and first
Clearing instrument 6 and second is settled accounts instrument 7 and is connected by RS485 communication interfaces with PC 8.
In the present embodiment, the air inlet of blower fan 2 is connected with testing one end of pipeline 1, proving flowmeter 5 and flowmeter to be measured
4 are sequentially arranged along gas flow direction.Flowmeter 4 to be measured is detachably connected with test pipeline 1, proving flowmeter 5 and testing tube
Road 1 is fixedly connected.Usually, proving flowmeter 5 uses the flowmeter of the high at least one grade of ratio of precision flowmeter 4 to be measured.This
In embodiment, proving flowmeter 5 uses the flowmeter of ratio of precision 4 high grades of flowmeter to be measured.
Using the flow verification method of above-mentioned platform, this method uses multiple spot method of comparison, comprised the following steps：
(a) flowmeter 4 to be measured is installed；
(b) frequency converter 3 is adjusted according to a series of frequency values being linearly distributed, the air quantity of blower fan 2 is controlled, in each frequency values
Under, after the air quantity of blower fan 2 is stable, PC 8 settles accounts instrument 7 by the first clearing instrument 6 and second and counts flowmeter 4 to be measured and standard
Integrated flow of the flowmeter 5 within one identical time；
(c) a series of integrated flow of flowmeter 4 to be measured and proving flowmeter 5 under frequency values is contrasted, treats measurement of discharge
Meter 4 carries out flow verification.
Specifically, the present embodiment uses 5 Comparison Methods, i.e., the set of frequency of frequency converter for set gradually for 10Hz, 20Hz,
30Hz, 40Hz and 50Hz.By flowmeter 4 to be measured in flowmeter installation site to be measured, after arrange parameter, start blower fan 2, will
Frequency converter 3 is transferred to 10Hz, and the flow signal of flowmeter 4 and proving flowmeter 5 to be measured is transmitted respectively by 4~20mA current signals
Instrument 7 is settled accounts to the first clearing instrument 6 and second, PC 8 is then sent to by RS485 communication interfaces again, treats that compressor flow is stable
Afterwards, count the integrated flow of flowmeter 4 and proving flowmeter 5 to be measured within a period of time, then successively respectively 20Hz,
In the case of 30Hz, 40Hz and 50Hz test, the integrated flow in same time period is taken, according to the test result of 5 points
Judge whether the precision of flowmeter to be measured meets requirement, reach the purpose pinpointed the problems in time.
Claims (7)
1. a kind of platform for flow verification, it is characterised in that including test pipeline (1), blower fan (2), frequency converter (3), treat
Flow measurement gauge (4), proving flowmeter (5), the first clearing instrument (6), the second clearing instrument (7) and PC (8)；Described treats measurement of discharge
Meter (4) and proving flowmeter (5) are connected in series on test pipeline (1), and blower fan (2) is arranged on one end of test pipeline (1), are become
Frequency device (3) is connected with blower fan (2), for adjusting blower fan (2) air quantity, the described first clearing instrument (6) and flowmeter to be measured (4) phase
Even, the second clearing instrument (7) is connected with proving flowmeter (5), and the flow signal of flowmeter (4) to be measured and proving flowmeter (5) leads to
Overcurrent be transferred to respectively the first clearing instrument (6) and second clearing instrument (7), first clearing instrument (6) and second settle accounts instrument (7) with
PC (8) connects.
A kind of 2. platform for flow verification according to claim 1, it is characterised in that described flowmeter to be measured
(4) it is detachably connected with test pipeline (1), described proving flowmeter (5) is fixedly connected with test pipeline (1).
A kind of 3. platform for flow verification according to claim 1, it is characterised in that described proving flowmeter
(5) using the flowmeter of the high at least one grade of ratio of precision flowmeter to be measured (4).
A kind of 4. platform for flow verification according to claim 3, it is characterised in that described proving flowmeter
(5) flowmeter of the high grade of ratio of precision flowmeter to be measured (4) is used.
A kind of 5. platform for flow verification according to claim 1, it is characterised in that the first described clearing instrument
(6) it is connected with the second clearing instrument (7) by RS485 communication interfaces with PC (8).
6. a kind of platform for flow verification according to claim 1, it is characterised in that described blower fan (2) are entered
Gas port is connected with one end of test pipeline (1), and described proving flowmeter (5) and flowmeter to be measured (4) are along gas flow direction
It is sequentially arranged.
7. using the flow verification method of the platform as described in claim 1~6 is any, it is characterised in that this method uses more
Point method of comparison, comprises the following steps：
(a) flowmeter (4) to be measured is installed；
(b) frequency converter (3), the air quantity of control blower fan (2), in each frequency values are adjusted according to a series of frequency values being linearly distributed
Under, after blower fan (2) air quantity is stable, PC (8) treats measurement of discharge by the first clearing instrument (6) and the second clearing instrument (7) statistics
Count the integrated flow of (4) and proving flowmeter (5) within one identical time；
(c) a series of integrated flow of flowmeter to be measured (4) and proving flowmeter (5) under frequency values is contrasted, treats measurement of discharge
Count (4) and carry out flow verification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771425.6A CN107560694A (en) | 2017-08-31 | 2017-08-31 | A kind of platform for flow verification and the flow verification method using the platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771425.6A CN107560694A (en) | 2017-08-31 | 2017-08-31 | A kind of platform for flow verification and the flow verification method using the platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107560694A true CN107560694A (en) | 2018-01-09 |
Family
ID=60978370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710771425.6A Pending CN107560694A (en) | 2017-08-31 | 2017-08-31 | A kind of platform for flow verification and the flow verification method using the platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107560694A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116046115A (en) * | 2022-12-09 | 2023-05-02 | 国电环境保护研究院有限公司 | Reliability verification test system of online flue gas flow monitoring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979968A (en) * | 2010-10-14 | 2011-02-23 | 同济大学 | Device and method for testing air quality sensor and air flow sensor |
| CN103292872A (en) * | 2012-02-24 | 2013-09-11 | 上海工程技术大学 | Performance detecting system of air quality flowmeter |
| CN107202625A (en) * | 2017-06-28 | 2017-09-26 | 安徽盛洲汽车部件有限公司 | Mass air flow sensor test system |
| CN207197639U (en) * | 2017-08-31 | 2018-04-06 | 上海大众祥源动力供应有限公司 | A kind of platform for flow verification |
-
2017
- 2017-08-31 CN CN201710771425.6A patent/CN107560694A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979968A (en) * | 2010-10-14 | 2011-02-23 | 同济大学 | Device and method for testing air quality sensor and air flow sensor |
| CN103292872A (en) * | 2012-02-24 | 2013-09-11 | 上海工程技术大学 | Performance detecting system of air quality flowmeter |
| CN107202625A (en) * | 2017-06-28 | 2017-09-26 | 安徽盛洲汽车部件有限公司 | Mass air flow sensor test system |
| CN207197639U (en) * | 2017-08-31 | 2018-04-06 | 上海大众祥源动力供应有限公司 | A kind of platform for flow verification |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116046115A (en) * | 2022-12-09 | 2023-05-02 | 国电环境保护研究院有限公司 | Reliability verification test system of online flue gas flow monitoring device |
| CN116046115B (en) * | 2022-12-09 | 2024-04-19 | 国电环境保护研究院有限公司 | Reliability verification test system of online flue gas flow monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102435268B (en) | Calibration device for gas flow meter and method thereof | |
| CN105021262B (en) | The adjustable gas flow scaling method of temperature, pressure | |
| CN103175589B (en) | Measuring meter calibration device and method | |
| CN108195447A (en) | flowmeter calibration system and calibration method | |
| CN104729637A (en) | Turbine flowmeter online calibration system and method | |
| CN209743128U (en) | Automatic testing device for improving testing precision of water pump | |
| CN103983313A (en) | Method for determining resistance coefficient of pipe network and method for measuring air volume of pipe network | |
| CN205720164U (en) | Portable dynamic air distribution system | |
| CN206020318U (en) | A kind of gas dew point analytical equipment | |
| CN110672172A (en) | Internet of things MEMS (micro-electromechanical systems) thermal mass gas meter system device and gas flow measuring method | |
| CN105526998A (en) | Communication-based electronic gas meter detection device and method | |
| CN105334278A (en) | Gas inlet end trace gas controller for gas chromatograph | |
| CN207197639U (en) | A kind of platform for flow verification | |
| CN107560694A (en) | A kind of platform for flow verification and the flow verification method using the platform | |
| CN202501910U (en) | Calibrating device for heavy caliber gas flow | |
| CN207798220U (en) | The check device of flowmeter calibration system | |
| CN205352516U (en) | Electron gas table calibrating installation | |
| CN104964729B (en) | A kind of calibrating installation of fluid metering instrument | |
| CN109029592A (en) | A kind of the bypass measuring device and application method of pipeline water flow amount | |
| CN209639805U (en) | A kind of aerospace automatic calibration unit for gas flowmeters | |
| KR20110073011A (en) | Portable checking device for flowmeter and method to check flow measurement system using the same | |
| CN205015005U (en) | Fracturing equipment instrument detection device | |
| CN207675241U (en) | A kind of kitchen range gas flow test system | |
| CN102175293A (en) | System and method for adjusting accuracy of mechanical water meter | |
| CN105466529B (en) | The double standard detection systems of gas meter, flow meter pulsation stream error and detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |