CN201707085U - Multi-point gas mass-flow meter - Google Patents
Multi-point gas mass-flow meter Download PDFInfo
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- CN201707085U CN201707085U CN2010202029995U CN201020202999U CN201707085U CN 201707085 U CN201707085 U CN 201707085U CN 2010202029995 U CN2010202029995 U CN 2010202029995U CN 201020202999 U CN201020202999 U CN 201020202999U CN 201707085 U CN201707085 U CN 201707085U
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- flow
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- type probe
- insertion type
- survey
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Abstract
The utility model relates to a multi-point gas mass-flow meter, which comprises measuring tubes and a flow calculation instrument. The measuring tube consists of an inserted probe and a flow converter which are installed on a measured pipeline, and the inserted probe is inserted into the measured pipeline. The multi-point gas mass-flow meter is characterized in that the output ends of the two to sixteen measuring tubes are connected with the calculation instrument. The multi-point gas mass-flow meter has the advantages that the meter adopts multi-point measurement to obtain average flow, greatly increases measuring precision, and well solves the difficult problems in past applications of measuring large pipe diameter or irregular pipeline gas and the like.
Description
Technical field
The utility model relates to a kind of flowmeter instrument, particularly discloses a kind of multipoint mode mass-flow gas meter.
Background technology
Thermal type gas quality flow meter is measured flow according to the thermal diffusion principle, is different from other gas meter, does not need to carry out the pressure and temperature correction, the mass rate of direct measurement gas, and range ratio is wide.It is fit to the measurement of pure gas and fixed proportion multicomponent gas.
But traditional thermal type gas quality flow meter exists a deadly defect.When measuring big caliber or irregular pipeline gas flow, because traditional thermal type gas quality flow meter has only a probe, therefore can only measure the flow velocity of a point, the precision of measurement does not reach requirement.
Summary of the invention
The purpose of this utility model is to solve problems of the prior art, provides a kind of precision high thermal type gas quality flow meter, and it can be used for the measurement of all gases except that acetylene gas of application scenarios such as big caliber or irregular pipeline.
The utility model is achieved in that the multipoint mode mass-flow gas meter, comprise and survey pipe, intelligent flow calculator, described survey pipe is made up of the insertion type probe, the flow converter that are installed on the tested pipeline, described insertion type probe is inserted in the tested pipeline, it is characterized in that: the quantity of described survey pipe is 2～16, and the output terminal of described survey pipe links to each other with intelligent flow calculator.
Described each insertion type probe is positioned on the same cross section of tested pipeline.
The insertion depth of described insertion type probe is determined by following formula:
Wherein R represents the radius of tested pipeline, and n represents to survey the sum of pipe, r
iRepresent that n is surveyed i insertion depth of surveying the insertion type probe of pipe of Guan Zhongdi.
The insertion type probe of described survey pipe is perpendicular to tested pipeline, and the angle between the insertion type probe of described adjacent survey pipe is α=360 °/n, and wherein n represents to survey the sum of pipe.
The beneficial effects of the utility model are: can be according to actual conditions, and the difference on the same cross section of tested pipeline inserts maximum 16 respectively and surveys pipe.When the gas stream in the tested pipeline is crossed the insertion type probe of surveying pipe, record the flow of difference in the tested pipeline.Each intelligent flow calculator of the unified again remittance of flow signal of surveying the pipe measurement performs calculations, and can draw an average discharge thus.Owing to adopt multimetering, obtain average discharge, improved measuring accuracy greatly, solved well in the past in a difficult problem of measuring application scenarios such as big caliber or irregular pipeline gas.
Description of drawings
Fig. 1 is the utility model structure principle chart.
Wherein: 1, intelligent flow calculator; 2, insertion type probe; 3, flow converter; 4, tested pipeline; 5, cable.
Embodiment
According to Fig. 1, the utility model comprises intelligent flow calculator 1, surveys pipe, described survey pipe is made up of insertion type probe 2 and flow converter 3, described survey pipe is installed on the tested pipeline 4, and described insertion type probe 2 is inserted in the tested pipeline 4, and the quantity of described survey pipe is 2～16, among Fig. 1 be 3, the output terminal of the flow converter 3 of described survey pipe links to each other with intelligent flow calculator 1, and output terminal output 4～20mA current signal of described flow converter 3 links to each other with intelligent flow calculator 1 by common cable 5.Described each insertion type probe 2 is positioned on the same cross section of tested pipeline 4.The insertion depth of described insertion type probe 2 is determined by following formula:
Wherein R represents the radius of tested pipeline 4, and n represents to survey the sum of pipe, and i represents that n is surveyed i insertion type probe 2 of Guan Zhongdi, r
iRepresent that n is surveyed i insertion depth of surveying the insertion type probe 2 of pipe of Guan Zhongdi.The insertion type probe 2 of described survey pipe is perpendicular to tested pipeline 4, and the angle between the insertion type probe 2 of described adjacent survey pipe is α=360 °/n, and wherein n represents to survey the sum of pipe.
Claims (4)
1. multipoint mode mass-flow gas meter, comprise and survey pipe, intelligent flow calculator, described survey pipe is made up of the insertion type probe, the flow converter that are installed on the tested pipeline, described insertion type probe is inserted in the tested pipeline, it is characterized in that: the quantity of described survey pipe is 2～16, and the output terminal of described survey pipe links to each other with intelligent flow calculator.
2. multipoint mode mass-flow gas meter according to claim 1 is characterized in that: described each insertion type probe is positioned on the same cross section of tested pipeline.
3. multipoint mode mass-flow gas meter according to claim 1 is characterized in that: the insertion depth of described insertion type probe is determined by following formula:
Wherein R represents the radius of tested pipeline, and n represents to survey the sum of pipe, r
iRepresent that n is surveyed i insertion depth of surveying the insertion type probe of pipe of Guan Zhongdi.
4. multipoint mode mass-flow gas meter according to claim 1 is characterized in that: the insertion type probe of described survey pipe is perpendicular to tested pipeline, and the angle between the insertion type probe of described adjacent survey pipe is α=360 °/n, and wherein n represents to survey the sum of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202029995U CN201707085U (en) | 2010-05-21 | 2010-05-21 | Multi-point gas mass-flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202029995U CN201707085U (en) | 2010-05-21 | 2010-05-21 | Multi-point gas mass-flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201707085U true CN201707085U (en) | 2011-01-12 |
Family
ID=43444248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202029995U Expired - Fee Related CN201707085U (en) | 2010-05-21 | 2010-05-21 | Multi-point gas mass-flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201707085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444826A (en) * | 2014-08-18 | 2016-03-30 | 上海中核维思仪器仪表有限公司 | Measurement device and measurement method for flue gas emission amount using gas ultrasonic technology |
-
2010
- 2010-05-21 CN CN2010202029995U patent/CN201707085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444826A (en) * | 2014-08-18 | 2016-03-30 | 上海中核维思仪器仪表有限公司 | Measurement device and measurement method for flue gas emission amount using gas ultrasonic technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20120521 |