CN105004386A - Application of annubar flowmeter to gas measurement - Google Patents
Application of annubar flowmeter to gas measurement Download PDFInfo
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- CN105004386A CN105004386A CN201510370612.4A CN201510370612A CN105004386A CN 105004386 A CN105004386 A CN 105004386A CN 201510370612 A CN201510370612 A CN 201510370612A CN 105004386 A CN105004386 A CN 105004386A
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- pressure
- flowmeter
- pipeline
- throttling element
- fluid
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Abstract
The invention discloses an application of an annubar flowmeter to gas measurement. The application comprises the following steps that: a mounting base and an isolation valve are installed above a pipeline, and a hole which penetrates the isolation valve is formed in the pipeline, and an on-line integrated Annubar flowmeter is installed in the hole; the cross section of the throttling element of the flowmeter is provided with a T-shaped anti-blocking structure, and a fluid medium generates a high-pressure zone on the flat front surface of the throttling element in working, and granular impurities in the fluid are deflected and by pass the high-pressure zone, and linger at a lagging zone of a low-pressure tapping opening of the flat back surface of the throttling element; the speed of the fluid in the pipeline on the cross section of the pipeline is unevenly distributed, and a high-pressure-side pressure tapping hole at the front surface of the throttling element of the flowmeter is of a groove-type structure, and the correct average flow speed of the fluid can be obtained. The application of the annubar flowmeter to gas measurement of the invention has the advantages of simple installation and accurate measurement results.
Description
Technical field
The present invention relates to and belongs to energy measurement fixture technology field, especially
the application of Annular Round Model PFB in coal gas is measured.
Background technology
In smelter is produced, coal gas is as important secondary energy, and the accurate-metering of its instantaneous delivery and integrated flux, not only affects the control effects of related Control System, and is the important evidence that Enterprise Internal Marketization operated, carried out cost accounting.But no matter be blast furnace gas or coal gas of converter, the impurity content such as moisture, dust is all higher, easily produces condensed deposit.Gas piping caliber is large in addition, operating pressure is little, and in pipeline, gas speed is little, and flow measurement difficulty is large.Although orifice flowmeter processing is installed simple, its range ratio is little, precision is low, crushing is large, can not meet the accurate measurement of coal gas.Previous use rhombus bar bar due to its anti-blocking poor, produce differential pressure too little, need stop production to overhaul when safeguarding, have impact on normal production run, so can not requirement be reached.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose the application of a kind of Annular Round Model PFB in coal gas is measured, have and install simply, measurement result is accurate.Successfully achieve the monitoring to full factory gaspipe network and metering.
In order to realize foregoing invention object, the invention provides following technical scheme:
The application of Annular Round Model PFB in coal gas is measured, comprises the steps, installs mounting seat and isolation valve above pipeline additional, then through isolation valve perforate install online integrated Annular Round Model PFB on pipeline; The T-shaped Anti-blocking structure of the cross-section mask of this flowmeter throttling element, in work, fluid media (medium) produces a higher-pressure region in the flat front of throttling element, and the particulate contamination in fluid is deflected walks around higher-pressure region, and the stagnant area of flat back side low pressure pressure tappings of wandering about as a refugee; Uneven to fluids within pipes velocity distribution on cross-section of pipeline, flowmeter throttling element face-side high-pressure side pressure port is trench structure, obtains the correct mean flow rate of fluid.
Further, the installation of T-shaped Annular Round Model PFB allows direction of principal axis there is ± the deviation of 5o at X, Y, Z tri-.
Further, this integrated Annular Round Model PFB is built-in differential pressure transmitter, pressure unit, temperature transmitter, high-speed CPU and large capacity data memory.
Compared with prior art, the present invention has the following advantages:
The deviation of the present invention ± 5o is that the eyes of people can obviously judge, the easier installment and debugging of installation personnel.Built-in large capacity data memory stores the physical data of various fluid required use in computing formula at different pressures, temperature, calculating is compensated on various impacts such as pipeline center hole expanding with heat and contract with cold under different temperatures, pressure, farthest eliminates the factor causing flow measurement error.
Embodiment
Describe the present invention below, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
The application of Annular Round Model PFB in coal gas is measured, comprises the steps, installs mounting seat and isolation valve above pipeline additional, then through isolation valve perforate install online integrated Annular Round Model PFB on pipeline; Due to the existence of isolation valve, installation and maintenance can be carried out when not stopping coal gas running.The installation of this T-shaped Annular Round Model PFB allows direction of principal axis there is ± the deviation of 5o at X, Y, Z tri-, and the deviation of ± 5o is that the eyes of people can obviously judge, the easier installment and debugging of installation personnel.The pressure unit of the built-in differential pressure transmitter of 0.065% precision of integration Annular Round Model PFB, 0.065% precision, temperature transmitter, high-speed CPU and large capacity data memory.
The T-shaped Anti-blocking structure of the cross-section mask of this flowmeter throttling element, in work, fluid media (medium) produces a higher-pressure region in the flat front of throttling element, and the particulate contamination in fluid is deflected walks around higher-pressure region, and the stagnant area of flat back side low pressure pressure tappings of wandering about as a refugee; Uneven to fluids within pipes velocity distribution on cross-section of pipeline, flowmeter throttling element face-side high-pressure side pressure port is trench structure, obtains the correct mean flow rate of fluid.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. the application of Annular Round Model PFB in coal gas is measured, comprises the steps, it is characterized in that: above pipeline, install mounting seat and isolation valve additional, then through isolation valve perforate install online integrated Annular Round Model PFB on pipeline; The T-shaped Anti-blocking structure of the cross-section mask of this flowmeter throttling element, in work, fluid media (medium) produces a higher-pressure region in the flat front of throttling element, and the particulate contamination in fluid is deflected walks around higher-pressure region, and the stagnant area of flat back side low pressure pressure tappings of wandering about as a refugee; Uneven to fluids within pipes velocity distribution on cross-section of pipeline, flowmeter throttling element face-side high-pressure side pressure port is trench structure, obtains the correct mean flow rate of fluid.
2. the detection method of steam vortex flowmeter as claimed in claim 1, is characterized in that: the installation of T-shaped Annular Round Model PFB allows direction of principal axis there is ± the deviation of 5o at X, Y, Z tri-.
3. the detection method of steam vortex flowmeter as claimed in claim 1, is characterized in that: this integrated Annular Round Model PFB is built-in differential pressure transmitter, pressure unit, temperature transmitter, high-speed CPU and large capacity data memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370612.4A CN105004386A (en) | 2015-06-30 | 2015-06-30 | Application of annubar flowmeter to gas measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370612.4A CN105004386A (en) | 2015-06-30 | 2015-06-30 | Application of annubar flowmeter to gas measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105004386A true CN105004386A (en) | 2015-10-28 |
Family
ID=54377148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510370612.4A Pending CN105004386A (en) | 2015-06-30 | 2015-06-30 | Application of annubar flowmeter to gas measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105004386A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654603A (en) * | 2021-08-16 | 2021-11-16 | 河南省奥瑞环保科技股份有限公司 | Flow velocity surface measuring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4476729A (en) * | 1982-06-02 | 1984-10-16 | Allied Corporation | Apparatus for measuring gas velocity |
| CN2105049U (en) * | 1990-11-14 | 1992-05-20 | 李德中 | Integrative uniform pipe flow transporter |
| CN2689182Y (en) * | 2003-08-25 | 2005-03-30 | 刘建华 | Flow sensor for pressure differential measurement |
| CN202177404U (en) * | 2011-08-26 | 2012-03-28 | 徐宏 | Annubar flow meter for uniform celerity tube |
-
2015
- 2015-06-30 CN CN201510370612.4A patent/CN105004386A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4476729A (en) * | 1982-06-02 | 1984-10-16 | Allied Corporation | Apparatus for measuring gas velocity |
| CN2105049U (en) * | 1990-11-14 | 1992-05-20 | 李德中 | Integrative uniform pipe flow transporter |
| CN2689182Y (en) * | 2003-08-25 | 2005-03-30 | 刘建华 | Flow sensor for pressure differential measurement |
| CN202177404U (en) * | 2011-08-26 | 2012-03-28 | 徐宏 | Annubar flow meter for uniform celerity tube |
Non-Patent Citations (1)
| Title |
|---|
| 王国富: "一体化阿牛巴流量计在煤气流量测量中的应用", 《自动化与仪器仪表》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654603A (en) * | 2021-08-16 | 2021-11-16 | 河南省奥瑞环保科技股份有限公司 | Flow velocity surface measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151028 |
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| RJ01 | Rejection of invention patent application after publication |