CN104568027A - Pitotbar gas flow measuring device - Google Patents
Pitotbar gas flow measuring device Download PDFInfo
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- CN104568027A CN104568027A CN201510058827.2A CN201510058827A CN104568027A CN 104568027 A CN104568027 A CN 104568027A CN 201510058827 A CN201510058827 A CN 201510058827A CN 104568027 A CN104568027 A CN 104568027A
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- measuring tube
- gas flow
- measuring
- rectangle
- pitotbar
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Abstract
The invention discloses a Pitotbar gas flow measuring device. The device comprises a measuring pipe and Pitotbar flow meters, the internal pipeline space of the measuring pipe is uniformly divided into a plurality of spaced measuring channels, each measuring channel is provided with the Pitotbar flow meter; the section of the measuring pipe can be rectangle or circular. When the Pitotbar gas flow measuring device disclosed by the invention is used, two ends of the measuring pipe can be welded on a measured pipe, the size of the measuring pipe is required to be consistent with the size of the measured pipeline, since the internal pipeline space of the measuring pipe is uniformly divided into the plurality of spaced measuring channels, the Pitotbar flow meter is arranged in each measuring channel, the gas flow field flowing through each measuring channel is relatively stable, the gas flow flowing through all measuring channels can be accumulated so that the gas flow flowing through the whole pipeline can be relatively and accurately measured.
Description
Technical field
The present invention relates to the Pitot bar gas flow surveying instrument of gas flow in a kind of measuring channel.
Background technology
Power plant's primary air flow is regulated by cold-hot wind, enter coal pulverizer, for saving space and reducing energy resource consumption, the caliber of usual pipeline is larger, mostly be more than 4m and for pipe or square tube, because the laying of pipeline is apart from short, the straight length of corresponding pipeline is also very short, cause straight length pipe interior gas flowfield so unstable, finally cause the error of gas flow in measuring channel larger.
Summary of the invention
The technical problem to be solved in the present invention be to provide that a kind of caliber of measured pipeline is large, straight length is short and gas in pipelines flow field is unstable time also can measure the Pitot bar gas flow surveying instrument of gas in pipelines flow exactly.
For solving the problems of the technologies described above, a kind of Pitot bar of the present invention gas flow surveying instrument, comprise measuring tube and bi toba flow meter, the internal pipeline space of described measuring tube is divided into multiple spaced Measurement channel, and each Measurement channel is equipped with described bi toba flow meter.
Described measuring tube cross section can be rectangle, length direction along rectangle measuring tube between the longitudinal centre position of forward and backward tube wall in rectangle measuring tube is connected with lateral partitions, uniformly between forward and backward tube wall in rectangle measuring tube be connected with polylith longitudinal baffle, polylith longitudinal baffle is separately positioned between the roof of described lateral partitions and rectangle measuring tube and diapire and along the length direction of this rectangle measuring tube and arranges, and the forward and backward tube wall of described lateral partitions, polylith longitudinal baffle and rectangle measuring tube, forms described multiple Measurement channel between roof and diapire.
Described measuring tube cross section also can be circular, axis along this circular measuring tube is provided with installation shaft, uniformly between installation shaft and inner-walls of duct be connected with the radial dividing plate of polylith, between the inner-walls of duct of adjacent radial dividing plate and circular measuring tube, form described multiple Measurement channel.
Adopt the Pitot bar gas flow surveying instrument of said structure, can the two ends of the measuring tube in the present invention be loaded on measured pipeline in a welding manner during use, measuring tube size in the present invention needs consistent with the size of measured pipeline, internal pipeline space due to measuring tube is divided into multiple spaced Measurement channel, each Measurement channel is equipped with described bi toba flow meter, therefore the gas flowfield flowing through each Measurement channel is stable relatively, the gas flow flowed through in all Measurement channel can be accumulated in together, the gas flow flowed through in whole pipeline can be measured relatively accurately.Due to measured pipeline normally square pipe or circular pipe, it is concrete structures that are circular and rectangle two kinds of form measurement mechanisms that the present invention show in particular measuring tube cross section.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the schematic front view of a kind of Pitot bar gas flow surveying instrument that technical scheme according to the present invention proposes.
Fig. 2 is the schematic side view of Fig. 1.
Fig. 3 is the schematic top plan view of Fig. 1.
Fig. 4 is the schematic front view of the another kind of Pitot bar gas flow surveying instrument that technical scheme according to the present invention proposes.
Fig. 5 is the schematic side view of Fig. 4.
Embodiment
See Fig. 1-Fig. 5, first see Fig. 1-Fig. 3, a kind of Pitot bar of the present invention gas flow surveying instrument, comprise measuring tube 1 and bi toba flow meter 2, the internal pipeline space of described measuring tube 1 is divided into multiple spaced Measurement channel 3, and each Measurement channel 3 is equipped with described bi toba flow meter 2.Bi toba flow meter usually clings to sensor, differential pressure transmitter and flow integrator by Pitot and forms, Pitot bar sensor has connecting pipe and pressure head, the installation of bi toba flow meter is by Pitot bar sensor is loaded on tested pipeline, connecting pipe extend in measured pipeline, utilize pressure head to transmit total head and the static pressure signal of fluids within pipes, finally calculated the flow flowing through fluids within pipes by flow integrator.Described measuring tube 1 cross section can be rectangle, before in rectangle measuring tube, rear tube wall 4, length direction along rectangle measuring tube between 5 longitudinal centre positions is connected with lateral partitions 6, before in rectangle measuring tube, rear tube wall 4, uniformly between 5 be connected with polylith longitudinal baffle 7, polylith longitudinal baffle 7 is separately positioned between the roof 8 of described lateral partitions 6 and rectangle measuring tube and diapire 9 and along the length direction of this rectangle measuring tube 6 and arranges, described lateral partitions 6, before polylith longitudinal baffle 7 and rectangle measuring tube, rear tube wall 4, 5, described multiple Measurement channel 3 are formed between roof 8 and diapire 9.
Again see Fig. 4, Fig. 5, measuring tube 1 cross section described in the present invention also can be circular, axis along this circular measuring tube 1 is provided with installation shaft 10, uniformly between installation shaft 10 and inner-walls of duct 11 be connected with the radial dividing plate 12 of polylith, between the inner-walls of duct 11 of adjacent radial dividing plate 12 and circular measuring tube 1, form described multiple Measurement channel 3.
Claims (3)
1. a Pitot bar gas flow surveying instrument, it is characterized in that: comprise measuring tube (1) and bi toba flow meter (2), the internal pipeline space of described measuring tube (1) is divided into multiple spaced Measurement channel (3), and each Measurement channel (3) is equipped with described bi toba flow meter (2).
2. Pitot bar gas flow surveying instrument as claimed in claim 1, it is characterized in that: described measuring tube (1) cross section is rectangle, before in rectangle measuring tube, rear tube wall (4, 5) lateral partitions (6) is connected with along the length direction of rectangle measuring tube between longitudinal centre position, before in rectangle measuring tube, rear tube wall (4, 5) uniformly between polylith longitudinal baffle (7) is connected with, polylith longitudinal baffle (7) is separately positioned between the roof (8) of described lateral partitions (6) and rectangle measuring tube and diapire (9) and length direction along this rectangle measuring tube (6) is arranged, described lateral partitions (6), before polylith longitudinal baffle (7) and rectangle measuring tube, rear tube wall (4, 5), described multiple Measurement channel (3) are formed between roof (8) and diapire (9).
3. Pitot bar gas flow surveying instrument as claimed in claim 1, it is characterized in that: described measuring tube (1) cross section is for circular, axis along this circular measuring tube (1) is provided with installation shaft (10), uniformly between installation shaft (10) and inner-walls of duct (11) be connected with the radial dividing plate (12) of polylith, between the inner-walls of duct (11) of adjacent radial dividing plate (12) and circular measuring tube (1), form described multiple Measurement channel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058827.2A CN104568027A (en) | 2015-02-05 | 2015-02-05 | Pitotbar gas flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058827.2A CN104568027A (en) | 2015-02-05 | 2015-02-05 | Pitotbar gas flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104568027A true CN104568027A (en) | 2015-04-29 |
Family
ID=53084624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510058827.2A Pending CN104568027A (en) | 2015-02-05 | 2015-02-05 | Pitotbar gas flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104568027A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784021A (en) * | 2016-04-22 | 2016-07-20 | 南京友智科技有限公司 | Whole-section flow measurement device for circular pipeline |
| CN110672166A (en) * | 2019-11-14 | 2020-01-10 | 上海权宥环保科技有限公司 | Multi-point measurement Pitotbar flowmeter |
| CN110686735A (en) * | 2019-11-14 | 2020-01-14 | 上海权宥环保科技有限公司 | Self-diagnosis, self-calibration and self-correction Pitotbar intelligent flowmeter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5736651A (en) * | 1996-05-23 | 1998-04-07 | Bowers; James R. | High temperature gas flow sensing element |
| CN1392391A (en) * | 2002-07-25 | 2003-01-22 | 浙江大学 | Multiple air channel air amount measuring method and device in large air channel |
| CN202648713U (en) * | 2012-05-21 | 2013-01-02 | 常州市新港热电有限公司 | Large metering equipment of short duct flows |
| CN103336141A (en) * | 2013-06-20 | 2013-10-02 | 国家电网公司 | Wind speed and wind volume measuring device based on static pressure principle |
| CN204359366U (en) * | 2015-02-05 | 2015-05-27 | 辽宁毕托巴科技有限公司 | A kind of Pitot bar gas flow surveying instrument |
-
2015
- 2015-02-05 CN CN201510058827.2A patent/CN104568027A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5736651A (en) * | 1996-05-23 | 1998-04-07 | Bowers; James R. | High temperature gas flow sensing element |
| CN1392391A (en) * | 2002-07-25 | 2003-01-22 | 浙江大学 | Multiple air channel air amount measuring method and device in large air channel |
| CN202648713U (en) * | 2012-05-21 | 2013-01-02 | 常州市新港热电有限公司 | Large metering equipment of short duct flows |
| CN103336141A (en) * | 2013-06-20 | 2013-10-02 | 国家电网公司 | Wind speed and wind volume measuring device based on static pressure principle |
| CN204359366U (en) * | 2015-02-05 | 2015-05-27 | 辽宁毕托巴科技有限公司 | A kind of Pitot bar gas flow surveying instrument |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784021A (en) * | 2016-04-22 | 2016-07-20 | 南京友智科技有限公司 | Whole-section flow measurement device for circular pipeline |
| CN110672166A (en) * | 2019-11-14 | 2020-01-10 | 上海权宥环保科技有限公司 | Multi-point measurement Pitotbar flowmeter |
| CN110686735A (en) * | 2019-11-14 | 2020-01-14 | 上海权宥环保科技有限公司 | Self-diagnosis, self-calibration and self-correction Pitotbar intelligent flowmeter |
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Application publication date: 20150429 |
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