CN202018309U - L-shaped Pitot tube flow meter - Google Patents
L-shaped Pitot tube flow meter Download PDFInfo
- Publication number
- CN202018309U CN202018309U CN2011200938470U CN201120093847U CN202018309U CN 202018309 U CN202018309 U CN 202018309U CN 2011200938470 U CN2011200938470 U CN 2011200938470U CN 201120093847 U CN201120093847 U CN 201120093847U CN 202018309 U CN202018309 U CN 202018309U
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- pitot tube
- shaped
- shaped pitot
- detection head
- flow meter
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Abstract
An L-shaped Pitot tube flow meter is provided with a Pitot tube detecting head, a guiding press tube, a differential pressure transmitter and a flow integrating meter which are connected with each other, wherein the Pitot tube detecting head is an L-shaped Pitot tube. The L-shaped Pitot tube is used as the Pitot tube detecting head of the Pitot tube flow meter, uniformity of structural parameters are easily ensured when the L-shaped Pitot tube is manufactured, and performance parameter repeatability of the L-shaped Pitot tube is fine after the L-shaped Pitot tube is manufactured. When a batch of L-shaped Pitot tubes of the same type is manufactured, after parameters are obtained only by calibrating one L-shaped Pitot tube, a batch of flow integrating meters can be adjusted by the aid of the parameters of the L-shaped Pitot tube, and the L-shaped Pitot tubes of the same type can be used with optional one of the flow integrating meters of the same batch. Therefore, the L-shaped Pitot tube flow meter is simpler in manufacture, lower in cost, higher in precision and extremely easy in replacement of the Pitot tube detecting head.
Description
Technical field
The utility model relates to the pitot tube detection head of a kind of pitot tube flowmeter, particularly a kind of pitot tube flowmeter.
Background technology
Pitot tube flowmeter has continuous pitot tube detection head, connecting pipe, differential pressure transmitter and flow integrator.Pitot tube flowmeter is applicable to the flow of fluid media (medium)s such as measuring steam, liquid, air, coal gas, and pitot tube flowmeter has reliable, the simple in structure and lower-price characteristic of principle is arranged.The pitot tube detection head has circle tube form shell body, the front end of circle tube form shell body has pitot hole and baroport, connecting pipe is arranged in the circle tube form shell body, during use, the pitot tube detection head inserts in the pipeline, allow pitot hole and baroport be in the center of flow section, pitot hole is just facing to the incoming flow direction, be used to measure total head, baroport is used to measure static pressure back to coming flow path direction, total head and static pressure pass to differential pressure transmitter through connecting pipe, differential pressure transmitter converts total head and differential static pressure to corresponding 4 ~ 20mA normalized current signal, and the normalized current signal is passed to flow integrator, in flow integrator the normalized current signal is carried out data processing and result's demonstration.In the prior art, the pitot tube detection head of pitot tube flowmeter has multiple different structure shape, the structural parameters of pitot tube detection head are bigger to the influence of accuracy of detection, the pitot tube detection head of a lot of structures is difficult to guarantee the unanimity of structural parameters when making, the inconsistent meeting of structural parameters causes the performance parameter repeatability of pitot tube detection head bad, when making pitot tube flowmeter with this pitot tube detection head, to make demarcation to each pitot tube detection head, could use with the basic data of this pitot tube detection head parameter adjustment flow integrator that calibrates, a pitot tube detection head can only be used with the flow integrator after the parameter adjustment of demarcating with this pitot tube detection head again.This pitot tube flowmeter making is complicated, cost is higher, precision is lower, it is pretty troublesome to change the pitot tube detection head.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes that a kind of making is simple, cost is lower, precision is higher, change pitot tube detection head L type pitot tube flowmeter easily.
The utility model is realized with the following method.
L type pitot tube flowmeter has continuous pitot tube detection head, connecting pipe, differential pressure transmitter and flow integrator, and pitot tube detection head wherein is a L type pitot tube.
The utility model adopts the pitot tube detection head of L type pitot tube as pitot tube flowmeter, L type pitot tube is easy to guarantee the unanimity of structural parameters when making, after the making, the performance parameter good reproducibility of L type pitot tube, when making a collection of L type pitot tube of same model, after as long as demarcation obtains parameter to a L type pitot tube, just can be with a collection of flow integrator of parameter adjustment of this L type pitot tube, the L type pitot tube of same model can cooperate above-mentioned with any use in a collection of flow integrator, so the utility model making is simpler, cost is lower, precision is higher, changing the pitot tube detection head is easy to.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is that the master of a kind of L type pitot tube flowmeter of proposing according to invention scheme of the present utility model looks synoptic diagram.
Embodiment
Among Fig. 1, L type pitot tube flowmeter has continuous pitot tube detection head 1, connecting pipe 2, differential pressure transmitter 3 and flow integrator 4, and pitot tube detection head wherein is a L type pitot tube.
Claims (1)
1. a L type pitot tube flowmeter has continuous pitot tube detection head, connecting pipe, differential pressure transmitter and flow integrator, it is characterized in that: the pitot tube detection head is a L type pitot tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200938470U CN202018309U (en) | 2011-04-01 | 2011-04-01 | L-shaped Pitot tube flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200938470U CN202018309U (en) | 2011-04-01 | 2011-04-01 | L-shaped Pitot tube flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202018309U true CN202018309U (en) | 2011-10-26 |
Family
ID=44811979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200938470U Expired - Lifetime CN202018309U (en) | 2011-04-01 | 2011-04-01 | L-shaped Pitot tube flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202018309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122120A (en) * | 2014-07-31 | 2014-10-29 | 中国环境科学研究院 | Adjustable isokinetic particulate matter sampling device |
| CN104457862A (en) * | 2014-11-28 | 2015-03-25 | 力合科技（湖南）股份有限公司 | Differential pressure flowmeter |
| CN106404083A (en) * | 2016-12-08 | 2017-02-15 | 贵州大学 | Pitot tube device suitable for ventilation experiment |
-
2011
- 2011-04-01 CN CN2011200938470U patent/CN202018309U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122120A (en) * | 2014-07-31 | 2014-10-29 | 中国环境科学研究院 | Adjustable isokinetic particulate matter sampling device |
| CN104122120B (en) * | 2014-07-31 | 2016-08-24 | 中国环境科学研究院 | Adjustable particulate matter isokinetic sampling's device |
| CN104457862A (en) * | 2014-11-28 | 2015-03-25 | 力合科技（湖南）股份有限公司 | Differential pressure flowmeter |
| CN104457862B (en) * | 2014-11-28 | 2018-11-30 | 力合科技（湖南）股份有限公司 | A kind of differential pressure flowmeter |
| CN106404083A (en) * | 2016-12-08 | 2017-02-15 | 贵州大学 | Pitot tube device suitable for ventilation experiment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIAONING PITOTBA TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TIELING GUANGMING INSTRUMENTS AND METERS FACTORY Effective date: 20121126 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 112000 TIELING, LIAONING PROVINCE TO: 112007 TIELING, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121126 Address after: 112007 Tieling City, Liaoning Province Economic Development Zone Tieling Mo Shan Branch Patentee after: Liaoning Pitotbar Technologies Co., Ltd. Address before: 112000 Guangming instrument and meter factory, No. 108 South Road, Yinzhou District, Liaoning, Tieling, Tieling Patentee before: Tieling Guangming Instrument And Meter Factory |
|
| CP03 | Change of name, title or address |
Address after: 112600 Leng Dong Street, Tieling Economic Development Zone, Tieling, Liaoning Province, No. 265 Patentee after: Liaoning pitotbar Polytron Technologies Inc Address before: 112007 Tieling City, Liaoning Province Economic Development Zone Tieling Mo Shan Branch Patentee before: Liaoning Pitotbar Technologies Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |
|
| CX01 | Expiry of patent term |