CN108318110A - A kind of minute gas meter proof calibrating installation - Google Patents

A kind of minute gas meter proof calibrating installation Download PDF

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Publication number
CN108318110A
CN108318110A CN201711416077.7A CN201711416077A CN108318110A CN 108318110 A CN108318110 A CN 108318110A CN 201711416077 A CN201711416077 A CN 201711416077A CN 108318110 A CN108318110 A CN 108318110A
Authority
CN
China
Prior art keywords
mass flow
gas
flow controller
digital
calibrating installation
Prior art date
Application number
CN201711416077.7A
Other languages
Chinese (zh)
Inventor
高利鹏
云鹏俊
景磊
张壮伟
王安平
Original Assignee
中核北方核燃料元件有限公司
Priority date (The priority date 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 date listed.)
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Application filed by 中核北方核燃料元件有限公司 filed Critical 中核北方核燃料元件有限公司
Priority to CN201711416077.7A priority Critical patent/CN108318110A/en
Publication of CN108318110A publication Critical patent/CN108318110A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00Testing or calibrating apparatus for measuring volume, volume flow or liquid level, or for metering by volume

Abstract

The present invention relates to a kind of minute gas meter proof calibrating installations, including stainless steel gas circuit, Temperature Transmitter, digital pressure transmitter and mass flow controller;Wherein, the dielectric gas in stainless steel gas circuit flows from left to right, is connected with Temperature Transmitter, digital pressure transmitter and mass flow controller in turn from left to right in stainless steel gas circuit;One end of mass flow controller connects electric pressure converter, and electric pressure converter is connected to 220V power supplys;The other end of mass flow controller connects digital analog converter, and digital analog converter connects computer.It establishes minute gas meter proving method and has developed calibrating installation, realize the calibration of minute gas flow measurement utensil, it can meet the requirement of national defence metrology transmission of quantity value through evaluating and verifying proof, be applied to the calibration of part minute gas flowmeter in AP1000 elements, heavy water Nuclear fuel manufacturing process.

Description

A kind of minute gas meter proof calibrating installation

Technical field

The invention belongs to minute gas meter proof calibrating installation fields, and in particular to a kind of minute gas flowmeter inspection Determine calibrating installation.

Background technology

Currently, the domestic work in gas flowmeter assay calibration is concentrated mainly on country or provincial metrological service completes, PVTt methods are generally used, accuracy can reach 0.2%, but this equipment is generally all more expensive, not applicable to be widely used. Another domestic widely used method is comparison method with standard at present, and the measuring accuracy of this method depends primarily on standard The class of accuracy of table, due to the advantages that this method cost is relatively low, and equipment volume is small so that this method is pushed away extensively Extensively, but this method can only generally provide the flow under the status of criterion of tested flowmeter, so its use scope is limited, Since flow used in each production unit flows down gauge in respect of flow down gauge and industry condition of the status of criterion, so needing to establish A set of flowmeter calibrating installation, cost is not so high can also to meet current actual state needs.

Therefore, minute gas meter proof calibrating installation is established, it is ensured that effectively control processing parameter, save It sends metage outside, solves meter proof and calibrate problem.

Invention content

It is an object of the invention to:There is provided a kind of used in the manufacturing process to nuclear fuel element minute gas flowmeter into The calibrating installation and calibration method of row calibration.

Technical scheme is as follows:A kind of minute gas meter proof calibrating installation, including stainless steel gas circuit, number Word formula temperature transmitter, digital pressure transmitter and mass flow controller;Wherein, the dielectric gas in stainless steel gas circuit by From left to right flows, and is connected with Temperature Transmitter, digital pressure transmitter in turn from left to right in stainless steel gas circuit And mass flow controller;One end of mass flow controller connects electric pressure converter, and electric pressure converter is connected to 220V power supplys; The other end of mass flow controller connects digital analog converter, and digital analog converter connects computer;

The Temperature Transmitter and digital pressure transmitter, the temperature and pressure for detecting dielectric gas Parameter;

The mass flow controller, for measuring gas instantaneous flow value under the dielectric gas status of criterion, the flow Value is analog quantity, and analog quantity is transmitted to computer by digital analog converter, while controlling mass flow controller by computer Flow aperture, reach the presetting of control device flow value;

The computer, the stream for reading and controlling dielectric gas under the status of criterion obtained by mass flow controller Magnitude respectively obtains the temperature parameter of dielectric gas by Temperature Transmitter and digital pressure transmitter and pressure is joined Number to dielectric gas flow value under the status of criterion convert to obtain industrial shape under industry condition by temperature and pressure parameter The flow value of dielectric gas under condition is examined and determine or is calibrated to tested minute gas flowmeter with this flow value.

The control accuracy of the flow aperture for controlling mass flow controller by computer is 0.01%.

The Temperature Transmitter and digital pressure transmitter are mounted on stainless steel gas circuit by threeway mode On.

The stainless steel gas circuit is connected through a screw thread with mass flow controller.

The stainless steel gas circuit is the steel pipe of φ 20.

The model Sevenstar-HC CS230A of the mass flow controller, accuracy reach 0.5%.

220V power supplys are converted to 24V power supplys and provide working power for mass flow controller by the electric pressure converter.

Pass through electricity between the mass flow controller and electric pressure converter and between electric pressure converter and 220V power supplys Source line connection.

Pass through data between the mass flow controller and digital analog converter and between digital analog converter and computer Line connects.

The dielectric gas is air.

The remarkable result of the present invention is:It establishes minute gas meter proving method and has developed calibrating installation, it is real The calibration for having showed minute gas flow measurement utensil can meet the requirement of national defence metrology transmission of quantity value, through evaluating and verifying proof Applied to the calibration of part minute gas flowmeter in AP1000 elements, heavy water Nuclear fuel manufacturing process, the research of this method and Using making the calibration of company's gas flowmeter obtain control easily and effectively, avoid out of control because of measurement instrument, cause product Quality risk, ensure that being smoothed out for research and production, while having saved and having sent calibration expense outside.

The project extends to 250L/min on the basis of original maximum range 100L/min, according to tested flowmeter Range and transmission of quantity value principle are at any time with dehorn collimator controller.Technical research for other industry meter proving methods provides It uses for reference, for formulation the providing the foundation property data of technical standard from now on.

Description of the drawings

Fig. 1 is a kind of structural schematic diagram of minute gas meter proof calibrating installation of the present invention;

Fig. 2 devices run operating diagram;

In figure:1 Temperature Transmitter, 2 digital pressure transmitters, 3, mass flow controller, 4, voltage conversion Device, 5 digital analog converters, 6 computers, 7 stainless steel gas circuits, 8 power cords, 9 data lines.

Specific implementation mode

Below in conjunction with the accompanying drawings and specific embodiment is to a kind of minute gas meter proof calibrating installation of the present invention It is described in further detail.

As shown in Figure 1, a kind of minute gas meter proof calibrating installation, including stainless steel gas circuit 7, digital temperature become Send device 1, digital pressure transmitter 2 and mass flow controller 3;Wherein, the dielectric gas in stainless steel gas circuit 7 is from left to right Flowing, is connected with Temperature Transmitter 1, digital pressure transmitter 2 and matter in turn from left to right in stainless steel gas circuit 7 Measure flow controller 3;One end of mass flow controller 3 connects electric pressure converter 4, and electric pressure converter 4 is connected to 220V power supplys; The other end of mass flow controller 3 connects digital analog converter 5, and digital analog converter 5 connects computer 6;

The Temperature Transmitter 1 and digital pressure transmitter 2, temperature and pressure for detecting dielectric gas Force parameter;

The mass flow controller 3, for measuring gas instantaneous flow value under the dielectric gas status of criterion, the flow Value is analog quantity, and analog quantity is transmitted to computer 6 by digital analog converter 5, while controlling mass flow control by computer 6 The flow aperture of device 3, reaches the presetting of control device flow value;

The computer 6, for reading and controlling dielectric gas under the status of criterion obtained by mass flow controller 3 Flow value is respectively obtained the temperature parameter and pressure of dielectric gas by Temperature Transmitter 1 and digital pressure transmitter 2 Parameter to dielectric gas flow value under the status of criterion convert to obtain industry under industry condition by temperature and pressure parameter The flow value of dielectric gas under situation is examined and determine or is calibrated to tested minute gas flowmeter with this flow value.

The control accuracy of the flow aperture for controlling mass flow controller 3 by computer 6 is 0.01%.

The Temperature Transmitter 1 and digital pressure transmitter 2 is mounted on stainless steel gas by threeway mode On road 7.

The stainless steel gas circuit 7 is connected through a screw thread with mass flow controller 3.

The stainless steel gas circuit 7 is the steel pipe of φ 20.

The model Sevenstar-HC CS230A of the mass flow controller 3, accuracy reach 0.5%.

It is that mass flow controller 3 provides work electricity that 220V power supplys are converted to 24V power supplys by the electric pressure converter 4 Source.

Pass through between the mass flow controller 3 and electric pressure converter 4 and between electric pressure converter 4 and 220V power supplys Power cord 8 connects.

Pass through between the mass flow controller 3 and digital analog converter 5 and between digital analog converter 5 and computer 6 Data line 9 connects.

The dielectric gas is air.

As shown in Fig. 2, being a kind of application method of minute gas meter proof calibrating installation of the present invention:

Dielectric gas enters in stainless steel gas circuit 7, respectively by obtaining temperature parameter after Temperature Transmitter 1, leads to Pressure parameter is obtained after crossing digital pressure transmitter 2, by obtaining dielectric gas under the status of criterion after mass flow controller 3 Flow value;

The show value for obtaining tested minute gas flowmeter after minute gas flowmeter by being detected, by under the status of criterion The dirty magnitude of industry condition that dielectric gas is obtained after the temperature and pressure amendment of gas flow values, at this time by the stream of dielectric gas Magnitude is compared with tested minute gas flowmeter show value, overall merit be detected the error of indication of minute gas flowmeter with And its class of accuracy.

Embodiment

Minute gas meter proof calibrating installation after building up has carried out magnitude tracing, school with national defence level-one metrological service Quasi- conclusion indicates, measures the error of indication and is up to 0.5%F.P.

The test result of the standard vacuum gauge accuracy of minute gas meter proof calibrating installation:Relative error of indicating value is 0.5%F.P, uncertainty of measurement Urel=0.8%k=2.

The present invention one suspended body flowmeter measurement result of calibration is given below:

Claims (10)

1. a kind of minute gas meter proof calibrating installation, it is characterised in that:Including stainless steel gas circuit (7), digital temperature Transmitter (1), digital pressure transmitter (2) and mass flow controller (3);Wherein, the medium gas in stainless steel gas circuit (7) Body flows from left to right, is connected with Temperature Transmitter (1), digital in turn from left to right in stainless steel gas circuit (7) Pressure transmitter (2) and mass flow controller (3);One end connection electric pressure converter (4) of mass flow controller (3), electricity Pressure converter (4) is connected to 220V power supplys;The other end connection digital analog converter (5) of mass flow controller (3), digital-to-analogue conversion Device (5) connects computer (6);
The Temperature Transmitter (1) and digital pressure transmitter (2), temperature and pressure for detecting dielectric gas Force parameter;
The mass flow controller (3), for measuring gas instantaneous flow value under the dielectric gas status of criterion, the flow value For analog quantity, analog quantity is transmitted to computer (6) by digital analog converter (5), while controlling mass flow by computer (6) The flow aperture of controller (3), reaches the presetting of control device flow value;
The computer (6), for reading and controlling dielectric gas under the status of criterion obtained by mass flow controller (3) Flow value, by Temperature Transmitter (1) and digital pressure transmitter (2) respectively obtain dielectric gas temperature parameter and Pressure parameter to dielectric gas flow value under the status of criterion convert to obtain under industry condition by temperature and pressure parameter The flow value of dielectric gas under industry condition is examined and determine or is calibrated to tested minute gas flowmeter with this flow value.
2. a kind of minute gas meter proof calibrating installation as described in claim 1, it is characterised in that:Described passes through meter The control accuracy that calculation machine (6) controls the flow aperture of mass flow controller (3) is 0.01%.
3. a kind of minute gas meter proof calibrating installation as described in claim 1, it is characterised in that:Described is digital Temperature transmitter (1) and digital pressure transmitter (2) are mounted on by threeway mode in stainless steel gas circuit (7).
4. a kind of minute gas meter proof calibrating installation as described in claim 1, it is characterised in that:The stainless steel Gas circuit (7) is connected through a screw thread with mass flow controller (3).
5. a kind of minute gas meter proof calibrating installation as described in claim 1, it is characterised in that:The stainless steel Gas circuit (7) is the steel pipe of φ 20.
6. a kind of minute gas meter proof calibrating installation as described in claim 1, it is characterised in that:The quality stream The model Sevenstar-HC CS230A of amount controller (3), accuracy reach 0.5%.
7. a kind of minute gas meter proof calibrating installation as described in claim 1, it is characterised in that:The voltage turns It is that mass flow controller (3) provides working power that 220V power supplys are converted to 24V power supplys by parallel operation (4).
8. a kind of minute gas meter proof calibrating installation as described in claim 1, it is characterised in that:The quality stream It is connect between amount controller (3) and electric pressure converter (4) and by power cord (8) between electric pressure converter (4) and 220V power supplys.
9. a kind of minute gas meter proof calibrating installation as described in claim 1, it is characterised in that:The quality stream Connect between amount controller (3) and digital analog converter (5) and by data line (9) between digital analog converter (5) and computer (6) It connects.
10. a kind of minute gas meter proof calibrating installation as described in claim 1, it is characterised in that:The medium Gas is air.
CN201711416077.7A 2017-12-25 2017-12-25 A kind of minute gas meter proof calibrating installation CN108318110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711416077.7A CN108318110A (en) 2017-12-25 2017-12-25 A kind of minute gas meter proof calibrating installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711416077.7A CN108318110A (en) 2017-12-25 2017-12-25 A kind of minute gas meter proof calibrating installation

Publications (1)

Publication Number Publication Date
CN108318110A true CN108318110A (en) 2018-07-24

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CN201711416077.7A CN108318110A (en) 2017-12-25 2017-12-25 A kind of minute gas meter proof calibrating installation

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1513110A (en) * 2001-05-30 2004-07-14 微动公司 Flowmeter providing device and method
CN202661119U (en) * 2012-06-26 2013-01-09 南京市计量监督检测院 Intelligent online oil flow metering device
CN102997979A (en) * 2012-12-27 2013-03-27 重庆川仪自动化股份有限公司 Differential pressure flowmeter verification system
CN103743455A (en) * 2013-12-31 2014-04-23 广西玉柴机器股份有限公司 Mass flowmeter detecting device and detecting method
CN103759793A (en) * 2013-12-31 2014-04-30 广西玉柴机器股份有限公司 Calibration device and method for gas flow meter
CN203949715U (en) * 2014-07-07 2014-11-19 西安航空动力控制科技有限公司 Gas micro-flow meter on-line calibration device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1513110A (en) * 2001-05-30 2004-07-14 微动公司 Flowmeter providing device and method
CN202661119U (en) * 2012-06-26 2013-01-09 南京市计量监督检测院 Intelligent online oil flow metering device
CN102997979A (en) * 2012-12-27 2013-03-27 重庆川仪自动化股份有限公司 Differential pressure flowmeter verification system
CN103743455A (en) * 2013-12-31 2014-04-23 广西玉柴机器股份有限公司 Mass flowmeter detecting device and detecting method
CN103759793A (en) * 2013-12-31 2014-04-30 广西玉柴机器股份有限公司 Calibration device and method for gas flow meter
CN203949715U (en) * 2014-07-07 2014-11-19 西安航空动力控制科技有限公司 Gas micro-flow meter on-line calibration device

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