CN204831401U - High flow rate flowmeter in heavy -calibre - Google Patents
High flow rate flowmeter in heavy -calibre Download PDFInfo
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- CN204831401U CN204831401U CN201520603956.0U CN201520603956U CN204831401U CN 204831401 U CN204831401 U CN 204831401U CN 201520603956 U CN201520603956 U CN 201520603956U CN 204831401 U CN204831401 U CN 204831401U
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- pipe
- flow rate
- rectangular tube
- measuring channel
- high flow
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Abstract
The utility model relates to a flow measuring device especially relates to a high flow rate flowmeter in heavy -calibre, and it includes the measuring channel, its characterized in that: arranged four rectangular pipe generators in the measuring channel, it officiallys enroll all to be equipped with on every rectangular pipe generator presses pipe and burden to get to press the pipe, and the officiallying enroll of four rectangular pipe generators presses pipe and burden to get to press the pipe to couple together through a pipe, the utility model discloses the structure is unique, can reduce loss of pressure, improve measurement accuracy, the installation and maintenance of being convenient for.
Description
Technical field
The utility model relates to a kind of flow measurement device, especially relates to high flow rate flowmeter in a kind of heavy caliber.
Background technology
In present differential-pressure instrumentation field of flow measurement, in heavy caliber when high flow rate, generally mainly contain two kinds of mounting meanss; A: with the flowmeter being covered with whole pipeline of pipeline welding or Flange joint, such as hyperboloid balance flow gauge application number: CN200910265096, the applying date: 2009.12.31, open (bulletin) number: CN101750121A, applicant (patentee): Shanghai Keyontechs Development Co., Ltd., utility model people: all people).B: punch on duct wall and be then inserted into pipe interior, such as internal-mounted combined type Venturi nozzle throttle mechanism: application number: CN20100547011, the applying date: 2010.11.17, open (bulletin) number: CN102042853A, applicant: Zhongwang Flow Instrument Co., Ltd., Xi'an City, utility model people: Huan is newly empty.Comparatively speaking the mounting means of a brings the raising of measuring accuracy, and it is larger that the corresponding pressure loss becomes, and relatively more serious to the waste of the energy, although the mounting means of b reduces the pressure loss, but the precision measured have dropped relatively.For this reason existing commercially also do not have a kind of instrument to reduce the pressure loss, can improve measuring accuracy again.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provides a kind of structure uniqueness, can reduce the pressure loss, improves measuring accuracy, is convenient to high flow rate flowmeter in a kind of heavy caliber of installation and maintenance.
The utility model realizes in the following way:
High flow rate flowmeter in a kind of heavy caliber, it comprises measuring channel, it is characterized in that: in measuring channel, be furnished with four rectangular tube generators, each rectangular tube generator is equipped with positive pressure pipe and negative pressure pipe, positive pressure pipe and the negative pressure pipe of four rectangular tube generators are coupled together by a pipe;
The pipeline center of described four rectangular tube generators is just in time on average arranged on the anchor ring such as grade of described measuring channel;
In described rectangular tube generator, α is 45 °, and β is 14 °, H=0.4D, and wherein D is the internal diameter of measuring channel.
The utility model has following effect:
1) structure is unique: the flowmeter that the utility model provides it comprise measuring channel, it is characterized in that: in measuring channel, be furnished with four rectangular tube generators, each rectangular tube generator is equipped with positive pressure pipe and negative pressure pipe, positive pressure pipe and the negative pressure pipe of four rectangular tube generators are coupled together by a pipe; Determine experimental study find when the fluid in flow field flows through the built-in rectangular flow gauge of high flow rate in heavy caliber by real failing to be sold at auction, a pressure differential is produced before and after it, there is certain funtcional relationship in this pressure differential and flow, by pressure port, the differential pressure signal that built-in for high flow rate in heavy caliber rectangular flow gauge produces in flow field is detected, be then converted into the flow in practical flow field by funtcional relationship.
2) pressure loss can be reduced, improve measuring accuracy: the flowmeter that the utility model provides is inside measuring channel, a rectangular tubular generator is installed, due to the rectangular configuration of rectangular tubular generator, by regulating α, β angle and height H in rectangular tubular generator, α, β, H make reducing of the middle part circulation area gradual change of rectangular tubular generator, along with reducing of circulation area, make the increase of flow field medium flow velocity, thus flow field Reynolds number is promoted, the precision measured is improved.Compared with instrument existing on market, in heavy caliber, the built-in rectangular flow gauge of high flow rate passes through the increase of measuring point and uses rectangular tube signal generator, thus improves the precision of heavy caliber measurement, reduces the pressure loss of differential-pressure instrumentation in measuring process.
3) installation and maintenance is convenient to: the flowmeter that the utility model provides arranges four rectangular tube generators by the mode of welding in measuring channel, the pipeline center of four rectangular tube generators is just in time on average arranged on the anchor ring such as grade of pipeline, the positive and negative pressure port of four rectangular tube generators is coupled together by the pipe of φ 25.4, then pressure pipe is received transmitter, then read flow.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model Fig. 1 left view.
Embodiment
High flow rate flowmeter in a kind of heavy caliber, it comprises measuring channel 3, as illustrated in fig. 1 and 2: in measuring channel 3, be furnished with four rectangular tube generators 5, the positive pressure pipe 1 and the negative pressure pipe 2 that each rectangular tube generator 5 are equipped with positive pressure pipe 1 and negative pressure pipe 2, four rectangular tube generators 5 are coupled together by a pipe 6.
The pipeline center of described four rectangular tube generators 5 is just in time on average arranged in waiting on anchor ring of described measuring channel 5.
In described rectangular tube generator 5, α is 45 °, and β is 14 °, and 4 wedge height H are 0.4D, and wherein D is the internal diameter of measuring channel 3.The height that α is wedge angle of throat, β wedge spread angle, H are the high both wedges of wedge.
Claims (3)
1. high flow rate flowmeter in a heavy caliber, it comprises measuring channel (3), it is characterized in that: in measuring channel (3), be furnished with four rectangular tube generators (5), each rectangular tube generator (5) is equipped with positive pressure pipe (1) and negative pressure pipe (2), positive pressure pipe (1) and the negative pressure pipe (2) of four rectangular tube generators (5) are coupled together by a pipe (6).
2. high flow rate flowmeter in a kind of heavy caliber as claimed in claim 1, is characterized in that: the pipeline center of described four rectangular tube generators (5) is just in time on average arranged in waiting on anchor ring of described measuring channel (3).
3. high flow rate flowmeter in a kind of heavy caliber as claimed in claim 1, is characterized in that: in described rectangular tube generator (5), α is 45 °, and β is 28 °, H=0.4D, and wherein D is the internal diameter of measuring channel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603956.0U CN204831401U (en) | 2015-08-12 | 2015-08-12 | High flow rate flowmeter in heavy -calibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603956.0U CN204831401U (en) | 2015-08-12 | 2015-08-12 | High flow rate flowmeter in heavy -calibre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204831401U true CN204831401U (en) | 2015-12-02 |
Family
ID=54688993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520603956.0U Withdrawn - After Issue CN204831401U (en) | 2015-08-12 | 2015-08-12 | High flow rate flowmeter in heavy -calibre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204831401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043448A (en) * | 2015-08-12 | 2015-11-11 | 银川融神威自动化仪表厂(有限公司) | Large-caliber middle-high velocity flow velocity meter |
-
2015
- 2015-08-12 CN CN201520603956.0U patent/CN204831401U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043448A (en) * | 2015-08-12 | 2015-11-11 | 银川融神威自动化仪表厂(有限公司) | Large-caliber middle-high velocity flow velocity meter |
| CN105043448B (en) * | 2015-08-12 | 2017-06-16 | 银川融神威自动化仪表厂(有限公司) | High flow rate flowmeter in a kind of heavy caliber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20170616 |