CN203191038U - Movable type gas flow measurement standard device and gas flow measurement closed-loop type system - Google Patents
Movable type gas flow measurement standard device and gas flow measurement closed-loop type system Download PDFInfo
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- CN203191038U CN203191038U CN 201320197139 CN201320197139U CN203191038U CN 203191038 U CN203191038 U CN 203191038U CN 201320197139 CN201320197139 CN 201320197139 CN 201320197139 U CN201320197139 U CN 201320197139U CN 203191038 U CN203191038 U CN 203191038U
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Abstract
The utility model discloses a movable type gas flow measurement standard device. A plurality of standard meters are connected between the gas outlet of a pressure regulator I and the gas inlet of a flow regulating valve in parallel, a rectifier I is arranged in front of the gas inlet of each standard meter, pressure sensors are arranged between the rectifiers I and the standard meters, temperature sensors are arranged between the gas outlets of the standard meters and the flow regulating valve, and the gas outlet of the flow regulating valve is connected with the gas inlet of a pressure regulator II. The output signals of the standard meters and the output signals of detected meters, the pressure sensors and the temperature sensors are transmitted to a PLC, and the PLC communicates with the upper computer to exchange data. The utility model further discloses a gas flow measurement closed-loop type system. According to the device and the system, the difficult problem of the on-line detection of a gas flow instrument is solved. When the device is fixed and used, the closed-loop type system is embedded seamlessly, the device and the system are organically combined to form a closed-loop circulation type gas flow standard device, and the difficult problems of detecting gas flow instruments with multiple media, all kinds of pressure ranges, all kinds of temperature ranges, and all kinds of flow ranges are solved.
Description
Technical field
The utility model relates to a kind of apparatus for calibrating gas instrument, relates in particular to a kind of mobile gas flow metering standard set-up and measurement of gas flow closed loop system.
Background technology
At present, most of gas flow instrument all is the off-line censorship, yet gas flow instrument performance is relevant with detected fluid medium kind, measuring condition, temperature (high temperature, utmost point low temperature), pressure (high pressure, low pressure), flow range (tiny flow quantity, big flow), flow state (laminar flow, turbulent flow), viscosity etc., and the non-real stream of off-line detects and can not truly represent the instrument usability.Therefore, online real stream detects the feature of tracing to the source that meets flowrate measurement value most, and it has taken into full account many influences such as physical parameter, operating conditions, mounting condition, environmental baseline, guarantees that testing conditions is consistent as far as possible with actual service conditions.Make a general survey of both at home and abroad, real stream on-line calibration be at present and after gas dosing a kind of trend of rock gas Trade Measures instrument calibration technical development particularly.On the other hand, the present gas instrument verification system overwhelming majority belongs to open, namely examines and determine medium (air/rock gas) emptying, and is not recycling.In addition, basic is not the gas flow standard device of medium with other non-air such as nitrogen, hydrogen, helium and rock gas.
The utility model content
At above shortcomings part in the prior art, the utility model provides a kind of mobile gas flow metering standard set-up and measurement of gas flow closed loop system, solves the online detection difficult problem of gas flow instrument; Mobile gas flow metering standard set-up is fixed when using, seamless embedding closed loop system, the two organically combines forms closed loop cycle formula gas flow standard device, solves the difficult problem of the gas flow instrument detection of multiple medium, various pressure limit, all temps scope, various flow range.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
Mobile gas flow metering standard set-up comprises pressure regulator I, flow control valve, pressure regulator II, PLC and host computer; Be parallel with a plurality of standard scales between the gas outlet of described pressure regulator I and the air intake opening of flow control valve, the rectifier I is installed before the air intake opening of each standard scale, between rectifier I and standard scale, pressure transducer is installed, between the gas outlet of each standard scale and flow control valve temperature sensor is installed, the gas outlet of flow control valve is connected with the air intake opening of pressure regulator II; Described standard scale, pressure transducer and temperature sensor output signal all are delivered to PLC, PLC and upper machine communication swap data.
As a kind of preferred version of the present utility model, valve is installed all before the air intake opening of each rectifier I.
The utility model also provides a kind of measurement of gas flow closed loop system, comprises above-mentioned mobile gas flow metering standard set-up, also comprises heating refrigeration case and withstand voltage blower fan; The described air intake opening that heats refrigeration case is connected with the gas outlet of pressure regulator II, and the gas outlet of described withstand voltage blower fan is connected with the air intake opening of pressure regulator I; Be provided with a plurality of tested tables between refrigeration case and the withstand voltage blower fan heating, the rectifier II is installed before the air intake opening of each tested table, between rectifier II and tested table, pressure transducer is installed, between the gas outlet of each tested table and withstand voltage blower fan, temperature sensor is installed; Described tested table, pressure transducer and temperature sensor output signal all are delivered to PLC, PLC and upper machine communication swap data.
As a kind of preferred version of the present utility model, valve is installed all before the air intake opening of each rectifier II.
As another kind of preferred version of the present utility model, between the air intake opening of withstand voltage blower fan and gas outlet, be parallel with the loop that compressor and gas-holder are connected, before the air intake opening of compressor, valve is installed, in the gas outlet of gas-holder valve is installed.
As another preferred version of the present utility model, also connect a ventilation interface at the air inlet of withstand voltage blower fan, between described ventilation interface and the withstand voltage blower fan valve is installed.
As a kind of improvement project of the present utility model, described withstand voltage blower fan is connected with frequency converter.
Compared with prior art, the utlity model has following beneficial effect:
1, this mobile gas flow metering standard set-up and measurement of gas flow closed loop system solve the online detection difficult problem of gas flow instrument; Mobile gas flow metering standard set-up is fixed when using, seamless embedding closed loop system, the two organically combines forms closed loop cycle formula gas flow standard device, and the gas flow instrument that solves multiple medium, various pressure limit, all temps scope, various flow range detects a difficult problem.
2, mobile gas flow metering standard set-up can carry out the online detection of gas flow instrument, but operating modes such as closed loop system simulated pressure, flow, temperature, medium are simulated online detection.The former can the seamless embedding latter, and is reasonable in design, compact.
3, same set of system both can realize the on-the-spot online detection of gas flow instrument, can realize the online detection of the real flow field simulation in laboratory again.
4, device integral body is closed loop, and source of the gas recycles, and gas medium can be any gases such as air, rock gas, nitrogen, hydrogen, helium.
5, according to detect the needs adjustable in pressure (0～10MPa), temperature is adjustable (20 ℃～60 ℃), flow is adjustable (being controlled jointly by blower fan, frequency converter, flow control valve), satisfies multiple detection operating mode demand.
Description of drawings
Fig. 1 is the structural representation of mobile gas flow metering standard set-up and measurement of gas flow closed loop system.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done to describe in further detail.
As shown in Figure 1, be mobile gas flow metering standard set-up in the frame of broken lines.Mobile gas flow metering standard set-up comprises pressure regulator I, flow control valve, pressure regulator II, PLC and host computer.Be parallel with a plurality of standard scales between the gas outlet of pressure regulator I and the air intake opening of flow control valve, the rectifier I is installed before the air intake opening of each standard scale, between rectifier I and standard scale, pressure transducer is installed, between the gas outlet of each standard scale and flow control valve temperature sensor is installed, the gas outlet of flow control valve is connected with the air intake opening of pressure regulator II.Standard scale, pressure transducer and temperature sensor output signal all are delivered to PLC, PLC and upper machine communication swap data.Valve all is installed before the air intake opening of each rectifier I.
The whole use of mobile gas flow metering standard set-up skid, all pipe materials use high pressure resistant stainless steel manufacturing.Gas feed, outlet pipe section place all use pressure regulator to carry out pressure and regulate, and outlet pipe section use traffic variable valve is regulated flow.A plurality of standard scales in parallel all use rectifier to adjust the flow field as measurement standard before each standard scale, and are equipped with thermometric, pressure instrumentation.Use the PLC controller as slave computer, with notebook (host computer) swap data, the upper computer software programming realizes signals collecting and standard scale control etc.
In the present embodiment, the main line bore is DN100, and pipe material uses stainless steel, compressive resistance 10MPa; Use the DN100 turbo flow meter, the parallel connection of DN50 rotz flowmeter is as standard scale, each standard scale place all uses a PT100 platinum resistor temperature measuring, the pressure measurement of an EJA absolute pressure transducer, cooperate pressure regulator, rectifier, flow control valve is formed mobile gas flow metering standard, use Siemens S-7300 PLC as slave computer, by RS485 communication modes and notebook (host computer) swap data, host computer uses the programming of Labview virtual instrument software to realize standard scale and tested surface low amount signal, temperature signal, pressure signal, the collection of valve signal and control processing etc.
Measurement of gas flow closed loop system as shown in Figure 1.Measurement of gas flow closed loop system comprises above-mentioned mobile gas flow metering standard set-up, heats refrigeration case and withstand voltage blower fan.The air intake opening that heats refrigeration case is connected with the gas outlet of pressure regulator II, and the gas outlet of withstand voltage blower fan is connected with the air intake opening of pressure regulator I; Be parallel with a plurality of tested tables between refrigeration case and the withstand voltage blower fan heating, the rectifier II is installed before the air intake opening of each tested table, between rectifier II and tested table, pressure transducer is installed, between the gas outlet of each tested table and withstand voltage blower fan, temperature sensor is installed.Valve all is installed before the air intake opening of each rectifier II.Between the air intake opening of withstand voltage blower fan and gas outlet, be parallel with the loop that compressor and gas-holder are connected, before the air intake opening of compressor, valve be installed, in the gas outlet of gas-holder valve is installed.Air inlet at withstand voltage blower fan also connects a ventilation interface, between ventilation interface and the withstand voltage blower fan valve is installed.Withstand voltage blower fan is by Frequency Converter Control.
The pipe material of measurement of gas flow closed loop system uses high pressure resistant stainless steel manufacturing, and tested list area includes polytype flow instrument interfaces such as gas meter, spinner-type flowmeter, gas meter, flow meter; Each equal thermometric in tested table place, pressure measurement; Use frequency converter frequency modulation control Fan Regulation flow; Use compressor and high pressure resistant gas-holder, pressure regulator to regulate manifold pressure; Use heats refrigeration case and regulates gas temperature in the pipeline; Use reservation ventilation interface to carry out Medium Replacement.
In the present embodiment, tested list area includes polytype instrumentation taps such as DN100 and following gas meter, spinner-type flowmeter, gas meter, flow meter; Each tested table place all uses a PT100 platinum resistor temperature measuring, the pressure measurement of an EJA absolute pressure transducer; Use the anti-riot Fan Regulation flow of ABB frequency converter frequency modulation control axial-flow type; Use compressor and the water capacity 6m of maximum output pressure 25MPa
3High pressure resistant gas-holder, pressure regulator regulate manifold pressure; Use the refrigeration case that heats of controllable temperature-20 ℃～60 ℃ to regulate gas temperature in the pipeline; Use reservation ventilation interface to carry out Medium Replacement.
When the on-the-spot detection of mobile gas flow metering standard set-up, utilize vehicle-mounted extremely scene, use flange to connect and connects with tested table, compare tested table and standard value and can carry out online detection.When mobile gas flow metering standard set-up is fixing when using, can use flange to connect seamless embedding closed loop system, carry out pressure regulation, temperature adjustment, accent flow, change the online detection of simulation such as medium.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. mobile gas flow metering standard set-up is characterized in that: comprise pressure regulator I, flow control valve, pressure regulator II, PLC and host computer; Be parallel with a plurality of standard scales between the gas outlet of described pressure regulator I and the air intake opening of flow control valve, the rectifier I is installed before the air intake opening of each standard scale, between rectifier I and standard scale, pressure transducer is installed, between the gas outlet of each standard scale and flow control valve temperature sensor is installed, the gas outlet of flow control valve is connected with the air intake opening of pressure regulator II; Described standard scale, pressure transducer and temperature sensor output signal all are delivered to PLC, PLC and upper machine communication swap data.
2. mobile gas flow metering standard set-up according to claim 1 is characterized in that: valve all is installed before the air intake opening of each rectifier I.
3. measurement of gas flow closed loop system is characterized in that: comprise claim 1 or 2 described mobile gas flow metering standard set-ups, also comprise heating refrigeration case and withstand voltage blower fan; The described air intake opening that heats refrigeration case is connected with the gas outlet of pressure regulator II, and the gas outlet of described withstand voltage blower fan is connected with the air intake opening of pressure regulator I; Be provided with a plurality of tested tables between refrigeration case and the withstand voltage blower fan heating, the rectifier II is installed before the air intake opening of each tested table, between rectifier II and tested table, pressure transducer is installed, between the gas outlet of each tested table and withstand voltage blower fan, temperature sensor is installed, described tested table, pressure transducer and temperature sensor output signal all are delivered to PLC, PLC and upper machine communication swap data.
4. measurement of gas flow closed loop according to claim 3 system is characterized in that: valve all is installed before the air intake opening of each rectifier II.
5. measurement of gas flow closed loop according to claim 3 system, it is characterized in that: between the air intake opening of withstand voltage blower fan and gas outlet, be parallel with the loop that compressor and gas-holder are connected, before the air intake opening of compressor, valve is installed, in the gas outlet of gas-holder valve is installed.
6. measurement of gas flow closed loop according to claim 3 system, it is characterized in that: the air inlet at withstand voltage blower fan also connects a ventilation interface, between described ventilation interface and the withstand voltage blower fan valve is installed.
7. measurement of gas flow closed loop according to claim 3 system, it is characterized in that: described withstand voltage blower fan is by Frequency Converter Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320197139 CN203191038U (en) | 2013-04-18 | 2013-04-18 | Movable type gas flow measurement standard device and gas flow measurement closed-loop type system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320197139 CN203191038U (en) | 2013-04-18 | 2013-04-18 | Movable type gas flow measurement standard device and gas flow measurement closed-loop type system |
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| CN203191038U true CN203191038U (en) | 2013-09-11 |
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| CN 201320197139 Expired - Fee Related CN203191038U (en) | 2013-04-18 | 2013-04-18 | Movable type gas flow measurement standard device and gas flow measurement closed-loop type system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764510A (en) * | 2015-04-23 | 2015-07-08 | 江苏博克斯自动化控制工程有限公司 | Calibration system for full-automatic direct-inserted hot type gas mass-flow meter and application thereof |
| CN105091989A (en) * | 2015-05-06 | 2015-11-25 | 姜跃炜 | An environment-controllable flow detection standard device |
| CN105403290A (en) * | 2015-11-09 | 2016-03-16 | 浙江省计量科学研究院 | Natural gas circular flow standard test system |
| CN106404125A (en) * | 2016-08-31 | 2017-02-15 | 新奥科技发展有限公司 | Detection device for gas flow meter |
| CN108225443A (en) * | 2016-12-14 | 2018-06-29 | 中国石油天然气股份有限公司 | Gas discharge detects circuit device |
| CN108344471A (en) * | 2017-12-27 | 2018-07-31 | 新智数字科技有限公司 | A kind of method and device of gas meter, flow meter detection |
| CN108427403A (en) * | 2018-04-04 | 2018-08-21 | 中国航发湖南动力机械研究所 | The test run system and control method of aero-engine particle separator flow control |
-
2013
- 2013-04-18 CN CN 201320197139 patent/CN203191038U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764510A (en) * | 2015-04-23 | 2015-07-08 | 江苏博克斯自动化控制工程有限公司 | Calibration system for full-automatic direct-inserted hot type gas mass-flow meter and application thereof |
| CN105091989A (en) * | 2015-05-06 | 2015-11-25 | 姜跃炜 | An environment-controllable flow detection standard device |
| CN105403290A (en) * | 2015-11-09 | 2016-03-16 | 浙江省计量科学研究院 | Natural gas circular flow standard test system |
| CN106404125A (en) * | 2016-08-31 | 2017-02-15 | 新奥科技发展有限公司 | Detection device for gas flow meter |
| CN108225443A (en) * | 2016-12-14 | 2018-06-29 | 中国石油天然气股份有限公司 | Gas discharge detects circuit device |
| CN108344471A (en) * | 2017-12-27 | 2018-07-31 | 新智数字科技有限公司 | A kind of method and device of gas meter, flow meter detection |
| CN108344471B (en) * | 2017-12-27 | 2020-06-02 | 新智数字科技有限公司 | Method and device for detecting gas meter |
| CN108427403A (en) * | 2018-04-04 | 2018-08-21 | 中国航发湖南动力机械研究所 | The test run system and control method of aero-engine particle separator flow control |
| CN108427403B (en) * | 2018-04-04 | 2019-12-20 | 中国航发湖南动力机械研究所 | Test run system for flow control of particle separator of aero-engine and control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20200418 |
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| CF01 | Termination of patent right due to non-payment of annual fee |