CN102519523B - Down-flow rotameter - Google Patents
Down-flow rotameter Download PDFInfo
- Publication number
- CN102519523B CN102519523B CN 201110396536 CN201110396536A CN102519523B CN 102519523 B CN102519523 B CN 102519523B CN 201110396536 CN201110396536 CN 201110396536 CN 201110396536 A CN201110396536 A CN 201110396536A CN 102519523 B CN102519523 B CN 102519523B
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- rotor
- flow
- tapered tube
- housing
- conical pipe
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Abstract
The invention provides a down-flow rotameter, which belongs to the technical field of flow measurement of fluids in pipelines. The rotameter comprises a rotor, a conical pipe, a housing, an inlet pipe and an outlet pipe, wherein the rotor is arranged in the conical pipe, and the rotor is of a hollow or low-density rotor, wherein the buoyancy of the rotor is greater than gravity; the conical pipe is mounted in the housing, the conical pipe is mounted in an inverted manner, and the diameter of the conical pipe is small at top and big at bottom; and the inlet pipe is positioned above the housing and communicated with the conical pipe, the outlet pipe is positioned below the housing and communicated with the conical pipe, and the measured fluid flows by in the conical pipe from the top to the bottom. The invention provides the rotameter which is directly mounted on a down-flow pipeline for flow measurement and can make up for a deficiency that a traditional up-flow rotameter can only directly measure the flow rate of up-flow and can not directly measure the flow rate of down-flow. The effects of shortening the length of the pipeline, reducing the resistance of the pipeline and reducing mounting space can be realized by using the down-flow rotameter.
Description
Technical field
The invention belongs to pipeline fluid flow measurement technology field, be specifically related to a kind of down to the stream spinner-type flowmeter, this flowmeter is particularly useful for lower measurement to stream pipeline fluid flow.
Background technology
At present, sell and widely used spinner-type flowmeter on market, what adopt is all the upward flow spinner-type flowmeter that fluid upwards flows, its principle be upwards impulse force pressure reduction to the acting force of rotor section constitution, viscous friction power, buoyancy and to the gravitational equilibrium of lower rotor part, make rotor be in suspended state; Rotor increase with the detected fluid flow and on move, along with the annular circulation area between rotor and tapered tube increases, make rotor be in new equilibrium position, thereby indicate the size of flow.Use in engineering and experiment this upward flow spinner-type flowmeter survey under during to the stream pipeline flow, first add 180 degree bend pipes and make upward flow with lower into to stream, then install to the stream spinner-type flowmeter, and then add 180 degree bend pipes and revert to lower to stream.So just increase duct length, increased the resistance of ducting, increased again the installing space of experimental provision and engineering equipment.
Summary of the invention
The present invention is directed to the technical matters that prior art exists, provide a kind of lower to the stream spinner-type flowmeter, under this flowmeter can be used for directly measuring to the stream pipeline flow.
Provided by the invention lower to stream spinner-type flowmeter comprise rotor 1, tapered tube 2, housing 3, induction pipe 4 and outlet 5; Described rotor 1 is arranged in tapered tube 2, and rotor 1 is that buoyancy is greater than the hollow of gravity or low-density rotor; Described tapered tube 2 is arranged on housing 3 inside, tapered tube 2 upside-down mountings, and the diameter of tapered tube 2 is up-small and down-big; Described induction pipe 4 is positioned at housing 3 tops and links with tapered tube 2, and described outlet 5 is positioned at housing 3 belows and links with tapered tube 2, and detected fluid flows through described tapered tube 2 from top to bottom.
The density of material that rotor of the present invention adopts is less than detected fluid density, or described rotor adopts hollow mode to make the bulk density of rotor less than detected fluid density.
The principle of the invention be downward impulse force pressure reduction to the acting force of rotor section constitution, viscous friction power, rotor gravity make a concerted effort and rotor is subject to buoyancy equal and opposite in direction upwards, make rotor be in equilibrium state, be suspended in tapered tube; Rotor moves down with the increase of detected fluid flow, increases to reduce drag effect by the circulation area between rotor and tapered tube, makes rotor be in new equilibrium state, by the scale on tapered tube, indicates the size of flow.
Select buoyancy greater than the hollow of gravity or low-density rotor to the rotor of stream spinner-type flowmeter under the present invention, when detected fluid flows through annular circulation area between rotor and tapered tube from top to bottom, rotor keeps suspended state, and during the equilibrium position that is in, indicated scale is the size of flow.
Under the present invention, diameter is up-small and down-big in the stream spinner-type flowmeter lower to the tapered tube upside-down mounting of stream spinner-type flowmeter, makes between rotor and tapered tube annular circulation area increase gradually from top to bottom.When the increase of detected fluid flow, rotor moves down, and along with annular circulation area increases, rotor balancing is suspended in new scale position.
The present invention compared with prior art has the following advantages:
(1) provide a kind of lower spinner-type flowmeter to flowing measuring flow on pipeline that is directly installed on, made up traditionally and can only directly survey the upward flow flow to the stream spinner-type flowmeter, and can not directly survey down to the deficiency of stream flow.
(2) during spinner-type flowmeter provided by the invention can solve down and measure to the stream pipeline flow, adopt the problem of adding bend pipe, shorten duct length, reduce the resistance of ducting, reduce installing space.
Description of drawings
Figure is structural representation of the present invention.
In figure: 1 rotor, 2 tapered tubes, 3 housings, 4 induction pipes, 5 outlets.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Figure is lower to the stream spinner-type flowmeter.Mainly comprise rotor 1, tapered tube 2, housing 3, induction pipe 4, outlet 5.Rotor 1 is placed in tapered tube 2, adopts buoyancy greater than the hollow of gravity or low-density rotor; Tapered tube 2 upside-down mountings are in housing 3, and tapered tube 2 diameters increase from top to bottom gradually, and indicating graduation is arranged on tapered tube, and scale increases from top to bottom successively; Induction pipe 4, outlet 5 are communicated with tapered tube 2, are arranged on housing in the lump.Join to the stream pipeline with upper subordinate to stream spinner-type flowmeter induction pipe 4 down, outlet 5 joins to the stream pipeline with lower subordinate, directly measures to stream pipeline fluid flow to be measured lower.
Claims (2)
- Under one kind to the stream spinner-type flowmeter, it is characterized in that this flowmeter comprises rotor (1), tapered tube (2), housing (3), induction pipe (4) and outlet (5), described rotor (1) is arranged in tapered tube (2), and rotor (1) is that buoyancy is greater than the hollow of gravity or low-density rotor; Described tapered tube (2) is arranged on housing (3) inside, tapered tube (2) upside-down mounting, and the diameter of tapered tube (2) is up-small and down-big; Described induction pipe (4) is positioned at housing (3) top and links with tapered tube (2), and described outlet (5) is positioned at housing (3) below and links with tapered tube (2), and detected fluid flows through described tapered tube (2) from top to bottom.
- 2. as claimed in claim 1 lower to the stream spinner-type flowmeter, it is characterized in that: the density of material that described rotor adopts is less than detected fluid density, or described rotor adopts hollow mode to make the bulk density of rotor less than detected fluid density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110396536 CN102519523B (en) | 2011-12-05 | 2011-12-05 | Down-flow rotameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110396536 CN102519523B (en) | 2011-12-05 | 2011-12-05 | Down-flow rotameter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102519523A CN102519523A (en) | 2012-06-27 |
| CN102519523B true CN102519523B (en) | 2013-11-06 |
Family
ID=46290524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110396536 Expired - Fee Related CN102519523B (en) | 2011-12-05 | 2011-12-05 | Down-flow rotameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102519523B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853868B (en) * | 2012-08-17 | 2014-09-17 | 西安建筑科技大学 | Two-way multifunctional rotor flow meter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU595625A1 (en) * | 1976-06-01 | 1978-02-28 | Куйбышевский политехнический институт им. В.В.Куйбышева | Rotameter |
| EP0016321A1 (en) * | 1979-03-26 | 1980-10-01 | VDO Adolf Schindling AG | Flow meter with a rotating body |
| US4324145A (en) * | 1979-03-26 | 1982-04-13 | Vdo Adolf Schindling Ag | Flowmeter having a rotary body and means for improvement of the starting behavior of the rotary body |
| CN2337532Y (en) * | 1998-07-11 | 1999-09-08 | 开封红旗仪表有限责任公司 | Glass tube wide-range flowrator |
| CN2493913Y (en) * | 2001-09-15 | 2002-05-29 | 温州海米特集团公司 | Flow measurer for flowmeter |
| CN2519874Y (en) * | 2001-10-30 | 2002-11-06 | 颜可根 | Water quantity flow stabilizer |
| CN201034656Y (en) * | 2007-05-17 | 2008-03-12 | 吕志宝 | Gas flow sensor |
| EP1956347A2 (en) * | 2007-02-08 | 2008-08-13 | Pratt & Whitney Rocketdyne Inc. | Tapered, frequency-tuned rotor for turbine flow meter |
| CN201327401Y (en) * | 2008-12-29 | 2009-10-14 | 茂名学院 | Magnetic reversing column type rotameter |
-
2011
- 2011-12-05 CN CN 201110396536 patent/CN102519523B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU595625A1 (en) * | 1976-06-01 | 1978-02-28 | Куйбышевский политехнический институт им. В.В.Куйбышева | Rotameter |
| EP0016321A1 (en) * | 1979-03-26 | 1980-10-01 | VDO Adolf Schindling AG | Flow meter with a rotating body |
| US4324145A (en) * | 1979-03-26 | 1982-04-13 | Vdo Adolf Schindling Ag | Flowmeter having a rotary body and means for improvement of the starting behavior of the rotary body |
| CN2337532Y (en) * | 1998-07-11 | 1999-09-08 | 开封红旗仪表有限责任公司 | Glass tube wide-range flowrator |
| CN2493913Y (en) * | 2001-09-15 | 2002-05-29 | 温州海米特集团公司 | Flow measurer for flowmeter |
| CN2519874Y (en) * | 2001-10-30 | 2002-11-06 | 颜可根 | Water quantity flow stabilizer |
| EP1956347A2 (en) * | 2007-02-08 | 2008-08-13 | Pratt & Whitney Rocketdyne Inc. | Tapered, frequency-tuned rotor for turbine flow meter |
| CN201034656Y (en) * | 2007-05-17 | 2008-03-12 | 吕志宝 | Gas flow sensor |
| CN201327401Y (en) * | 2008-12-29 | 2009-10-14 | 茂名学院 | Magnetic reversing column type rotameter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102519523A (en) | 2012-06-27 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20211205 |