CN207649729U - A kind of gas flow automated calibration system device - Google Patents
A kind of gas flow automated calibration system device Download PDFInfo
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- CN207649729U CN207649729U CN201720954262.0U CN201720954262U CN207649729U CN 207649729 U CN207649729 U CN 207649729U CN 201720954262 U CN201720954262 U CN 201720954262U CN 207649729 U CN207649729 U CN 207649729U
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- gas flow
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- standard scale
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- 230000001276 controlling effect Effects 0.000 claims abstract description 12
- 230000001105 regulatory Effects 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 15
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 3
- 238000004801 process automation Methods 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 238000007405 data analysis Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- QGWNDRXFNXRZMB-UUOKFMHZSA-N Guanosine diphosphate Chemical compound C1=2NC(N)=NC(=O)C=2N=CN1[C@@H]1O[C@H](COP(O)(=O)OP(O)(O)=O)[C@@H](O)[C@H]1O QGWNDRXFNXRZMB-UUOKFMHZSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Abstract
The utility model discloses a kind of gas flow automated calibration system device, including modular system, experiment table, flow measuring and controlling computer, regulating valve and escape pipe, it is characterised in that：Standard scale is concatenated with experiment table, the centre of standard scale and experiment table is compensation device, gas passes through modular system gas generation apparatus first, then standard scale detection gas flow, current stabilization control is carried out using PLC and frequency converter, complete closed-loop measuring and control gas flow, there is a regulating valve in the centre of temperature sensor and pressure sensor, temperature sensor, pressure sensor, standard scale and experiment table all feedback data are to PLC, flow measuring and controlling computer passes through RS 485 and plc communication, gas flow measurement and control are completed, last gas is discharged from escape pipe.Its advantage is that：The online real stream calibrating for realizing gas flow, can automatically complete data analysis and processing, existing verification process automation and high efficiency, reduce the working strength of operating personnel, improve calibrating effect.
Description
Technical field
The utility model is related to automatic fields, and in particular to a kind of gas flow automated calibration system device.
Background technology
Flow measurement is an important parameter in energy measurement, has thousand ten thousand with the national economic development and people's lives
The contact of thread.The calorimeter used for gas meter, water meter and the heat supply of meterage in residential households, to domestic inlet and outlet
Crude oil, natural gas trade settlement etc. it is invariably related with flowmeter.It is energy saving in order to scientifically use gas, it needs to use gas
Flowmeter body accurately measures gas flow, and gas flow calibrating device is exactly to ensure the accurate of gas flowmeter
The equipment of degree and the identification gas flowmeter of foundation.Therefore meter proof and the accuracy of calibration are that flow value transmits or traces to the source
In most important link, be not only related to the economic interests of trade both sides, but also have to the development of Chinese national economy critically important
Social benefit.China is in the scientific management of the energy and resource at present, and there is also larger gaps compared with advanced country.Unit
For the cost that GDP is paid far more than developed country, the backwardness of flowmeter instrument and calibrated horizontal is one of reason.Due in the energy
With in the utilization and international cooperation of resource, the need of the standard set-up of flowmeter and its calibration for each bore and each flow
Ask very prominent.And the calibration of domestic flow and calibrating installation are mostly introduction or the ready-made technology of foreign imitation, there are larger
Limitation.So the standard set-up of the gas flow meter calibrating of structure, to realize the high-precision calibrating of flowmeter and examine and determine in section
Learn has important application background using with energy management aspect.
Most domestic flow standard device is still manually control verification discharge capacity at present, manual record data, artificial
The manufacturer of calculating error, part scientific research institution and calibrating installation also begins to research automatic control system, although also working out
Some achievements, but various flow regimes when flow standard device all cannot correctly reappear flow meters work, calibration accuracy is low,
Effect is poor.Since flow is that a dynamic is measured, flow measurement technology is complicated, and the condition of flow is diversified, the height of temperature,
The variation of pressure, flow velocity size, flow regime of fluid etc. all have an impact measurement.
Utility model content
It devises gas flow purpose of the utility model is to solve the above problem and flows the computer calibrated automatically in fact
Control device, calibration at this time can really be included in influence of the various factors to flow instrument function, improve calibrating efficiency and
Precision.
The technical solution of the utility model is：A kind of gas flow automated calibration system device, including modular system, experiment
Table, flow measuring and controlling computer, regulating valve and escape pipe, modular system include gas generation apparatus, flow control, compensation device and
Standard scale, volume control device include PLC and frequency converter, and compensation device includes temperature sensor and pressure sensor, feature
It is：Standard scale is concatenated with experiment table, and the centre of standard scale and experiment table is compensation device, and gas passes through modular system gas first
Body generation device, then standard scale detection gas flow carry out current stabilization control using PLC and frequency converter, complete closed-loop measuring with
Gas flow is controlled, there are a regulating valve, temperature sensor, pressure sensor, mark in the centre of temperature sensor and pressure sensor
To PLC, flow measuring and controlling computer is completed gas stream and is measured by RS-485 and plc communication for quasi- table and experiment table all feedback data
Amount and control, last gas are discharged from escape pipe.
Gas generation apparatus described in the utility model is air pump model HG-370-C.
It is LWQ-M250SLENN that standard scale described in the utility model, which selects gas swirl flow meter model,.
PLC type number described in the utility model is CPU224XP+EM235.
The model D700 of frequency converter described in the utility model.
Flow measuring and controlling computer described in the utility model writes the control algolithms such as meter operation interface, PID using configuration software
With the transmission procedure (being all known) of control parameter.
Calibration system described in the utility model is verified and test experiments table in such a way that standard scale is concatenated with experiment table
Performance indicator.Calibration system further includes stainless steel frame, programmable control box, stainless steel water tank, organic glass liquid level water
The compositions such as case, three-phase magnetic pump.Pipeline fact temperature and pressure value is obtained by temperature and pressure sensor measurement, realizes flow
The temperature and pressure compensation of measured value.Flow measuring and controlling computer writes the control algolithms such as meter operation interface, PID using configuration software
Gas flow measurement and control are completed by RS-485 and plc communication with the transmission procedure of control parameter.Set experiment institute
After the flow needed, controlling controlled device by control algolithm makes pipeline flow value reach setting value.Experiment table is mounted on standard
In system, simultaneously by the variation tendency and error degree of regular and irregular change setting flow value observation experiment table and standard scale
Comparison record is to realize the calibration to testing table.
The beneficial effects of the utility model：The online real stream calibrating for realizing gas flow, can automatically complete data
Analysis and processing realize verification process automation and high efficiency, reduce the working strength of operating personnel, improve calibrating effect.
Efficiency is opposite when and utilization simple gas standard device more and more for gas flow measurement occasion examines and determine gas flowmeter
Lower present situation develops the online computer measurement and control system examined and determine in real time of gas flow standard device, according to tested instrument
Pipeline flow field characteristic selects corresponding experimental facilities device and investigating method.Standard set-up is completed under configuration info management environment
Calibrating, in the one-shot measurement time as defined in tested meter proof regulation, computer acquires checklist simultaneously and standard scale is defeated
The flow signal gone out, and be utilized respectively temperature, pressure value is modified to obtain flow under corresponding mark condition to flow, then with mark
The flow value that quasi- table measures is compared, and the error and instrument coefficient of checklist instruction flow value is obtained, according to the result of test
Modified flow rate instrument coefficient；By repeatedly measuring to obtain the repeatability and linearity error of tested instrument, standard set-up is completed
The analysis of uncertainty, it is ensured that calibrating quality.Under the premise of ensureing higher calibration accuracy, flowmeter is improved to a greater extent and is existed
Calibrating efficiency during the manufacturing.System has the various data of automatic alarm, automatic collection, automatic calculating and beats automatically
The functions such as report and storage data are printed, realize calibration process automation, high-precision and high efficiency.
Description of the drawings
Fig. 1 is the calibration system structure chart of the utility model.
With reference to attached drawing, 1 is modular system；11 be gas generation apparatus；12 be volume control device；121 be PLC：122 are
Frequency converter 13 is compensation device；131 be temperature sensor；132 be pressure sensor 14 be standard scale 2 be experiment table；3 be flow
Measurement ＆control computer；4 be regulating valve；5 be escape pipe.
Specific implementation mode
As shown in Figure 1, the utility model is such to work, a kind of gas flow automated calibration system device, including
Modular system (1), experiment table (2), flow measuring and controlling computer (3), regulating valve (4) and escape pipe (5), modular system (1) include
Gas generation apparatus (11), volume control device (12), compensation device (13) and standard scale (14), volume control device (12) packet
PLC (121) and frequency converter (122) are included, compensation device (13) includes temperature sensor (131) and pressure sensor (132), spy
Sign is：Standard scale (14) is concatenated with experiment table (2), and standard scale (14) and the centre of experiment table (2) are compensation device (13), gas
Body is first by modular system (1) gas generation apparatus (11), then standard scale (14) detection gas flow, using PLC (121)
Current stabilization control is carried out with frequency converter (122), completes closed-loop measuring and control gas flow, temperature sensor (131) and pressure pass
There are a regulating valve (4), temperature sensor (131), pressure sensor (132), standard scale (14) and experiment in the centre of sensor (132)
Table (2) all feedback data give PLC (121), flow measuring and controlling computer (3) to be communicated with PLC (121) by RS-485, complete gas
Flow measurement and control, last gas are discharged from escape pipe (5).
The performance that calibration system verifies in such a way that standard scale (14) is concatenated with experiment table (2) with test experiments table refers to
Mark.Calibration system further includes stainless steel frame, programmable control box, stainless steel water tank, organic glass liquid level water tank, three-phase magnetic
The compositions such as power pump.Pipeline fact temperature and pressure value is obtained by temperature sensor (131) and pressure sensor (132) measurement,
Realize the temperature and pressure compensation of flow measurements.Flow measuring and controlling computer (3) using configuration software write meter operation interface,
The transmission procedure of the control algolithms such as PID and control parameter is communicated by RS-485 with PLC (121), complete gas flow measurement with
Control.After setting the flow needed for experiment, controlling controlled device by control algolithm makes pipeline flow value reach setting value.It will
It tests table (2) to be mounted on modular system (1), setting flow value observation experiment table (2) and mark is changed by regular and irregular
The variation tendency and error degree of quasi- table (14) simultaneously compare record to realize the calibration to experiment table (2).
The pid parameter that user scheduled flow value need to be arranged in host computer configuration software and obtained by certain method,
Controller PLC (121) handles setting value and completes the setting of pid parameter and the control of system, and D700 receives EM235 outputs
4-20mA (25% offset) and the frequency for exporting variation.HG-370-C (wind turbine) according to the output valve of D700 change rotating speed from
And realize the change of flow, the voltage value of the variation final output 4-20mA of LWQ-M250SLENN (flowmeter) detection flows is simultaneously
Input PLC (121) is recorded, and PLC (121) is compensated and led to the flow value of acquisition according to real-time temperature and pressure value
It crosses configuration to show, completes calibration system operation.
Claims (5)
1. a kind of gas flow automated calibration system device, including modular system (1), experiment table (2), flow measuring and controlling computer
(3), regulating valve (4) and escape pipe (5), modular system (1) include gas generation apparatus (11), volume control device (12), mend
Device (13) and standard scale (14) are repaid, volume control device (12) includes PLC (121) and frequency converter (122), compensation device (13)
Including temperature sensor (131) and pressure sensor (132), it is characterised in that：Standard scale (14) is concatenated with experiment table (2), is marked
Quasi- table (14) and the centre of experiment table (2) are compensation device (13).
2. according to a kind of gas flow automated calibration system device described in claim 1, it is characterised in that：The gas production
Generating apparatus (11) is air pump model HG-370-C.
3. according to a kind of gas flow automated calibration system device described in claim 1, it is characterised in that：The standard scale
(14) it is LWQ-M250SLENN to select gas swirl flow meter model.
4. according to a kind of gas flow automated calibration system device described in claim 1, it is characterised in that：The PLC
(121) model CPU224XP+EM235.
5. according to a kind of gas flow automated calibration system device described in claim 1, it is characterised in that：The frequency converter
(122) model D700.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720954262.0U CN207649729U (en) | 2017-07-19 | 2017-07-19 | A kind of gas flow automated calibration system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720954262.0U CN207649729U (en) | 2017-07-19 | 2017-07-19 | A kind of gas flow automated calibration system device |
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| Publication Number | Publication Date |
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| CN207649729U true CN207649729U (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720954262.0U Expired - Fee Related CN207649729U (en) | 2017-07-19 | 2017-07-19 | A kind of gas flow automated calibration system device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342700A (en) * | 2018-08-20 | 2019-02-15 | 中国纺织科学研究院有限公司 | Long filament ageing properties test macro and method |
| CN109520595A (en) * | 2019-01-14 | 2019-03-26 | 李长启 | A kind of direct corrector CALIBRATING DEVICE FOR LARGE DIAMETER GAS FLOWMETER |
| CN110220574A (en) * | 2019-06-26 | 2019-09-10 | 东华理工大学 | Gas flow calibration system, method and device |
| CN111458446A (en) * | 2019-08-10 | 2020-07-28 | 北京高斯匹克技术有限公司 | Multi-channel microflow control system |
| CN111665877A (en) * | 2020-06-18 | 2020-09-15 | 北京七星华创流量计有限公司 | Pressure control method and device and photovoltaic equipment |
| CN112198905A (en) * | 2020-09-11 | 2021-01-08 | 兰州空间技术物理研究所 | Gas flow control system and control method of standard digital interface |
| CN114942059A (en) * | 2022-04-09 | 2022-08-26 | 深圳天溯计量检测股份有限公司 | On-line flowmeter calibration method |
-
2017
- 2017-07-19 CN CN201720954262.0U patent/CN207649729U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342700A (en) * | 2018-08-20 | 2019-02-15 | 中国纺织科学研究院有限公司 | Long filament ageing properties test macro and method |
| CN109520595A (en) * | 2019-01-14 | 2019-03-26 | 李长启 | A kind of direct corrector CALIBRATING DEVICE FOR LARGE DIAMETER GAS FLOWMETER |
| CN110220574A (en) * | 2019-06-26 | 2019-09-10 | 东华理工大学 | Gas flow calibration system, method and device |
| CN111458446A (en) * | 2019-08-10 | 2020-07-28 | 北京高斯匹克技术有限公司 | Multi-channel microflow control system |
| CN111665877A (en) * | 2020-06-18 | 2020-09-15 | 北京七星华创流量计有限公司 | Pressure control method and device and photovoltaic equipment |
| CN111665877B (en) * | 2020-06-18 | 2023-04-14 | 北京七星华创流量计有限公司 | Pressure control method and device and photovoltaic equipment |
| CN112198905A (en) * | 2020-09-11 | 2021-01-08 | 兰州空间技术物理研究所 | Gas flow control system and control method of standard digital interface |
| CN112198905B (en) * | 2020-09-11 | 2023-03-10 | 兰州空间技术物理研究所 | Gas flow control method of standard digital interface |
| CN114942059A (en) * | 2022-04-09 | 2022-08-26 | 深圳天溯计量检测股份有限公司 | On-line flowmeter calibration method |
| CN114942059B (en) * | 2022-04-09 | 2022-11-25 | 深圳天溯计量检测股份有限公司 | On-line flowmeter calibration method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20190719 |