CN106802168A - A kind of cross flowmeter - Google Patents
A kind of cross flowmeter Download PDFInfo
- Publication number
- CN106802168A CN106802168A CN201710209315.0A CN201710209315A CN106802168A CN 106802168 A CN106802168 A CN 106802168A CN 201710209315 A CN201710209315 A CN 201710209315A CN 106802168 A CN106802168 A CN 106802168A
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- CN
- China
- Prior art keywords
- cross
- pressure port
- flowmeter
- measurement body
- terminal pad
- Prior art date
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- Pending
Links
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/40—Details of construction of the flow constriction devices
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of cross flowmeter, a kind of cross flowmeter, including, measurement body, the both sides of the measurement body are provided with flange terminal pad, the flange terminal pad is fixed by nut and whorl brace rod, and the measurement body is provided with pressure port, and the middle inside of the measurement body is fixedly connected with throttling element；The cross flowmeter, certainty of measurement is high, and straight length requirement is low, and the pressure loss is low, reproducible, and stain resistance；The present invention is reasonable in design, is suitable to production and popularization and application.
Description
Technical field
The invention belongs to flow measurement technology field, and in particular to a kind of cross flowmeter.
Background technology
Differential pressure flowmeter is with a long history, is most widely used in all kinds of flow instruments.It is with Bernoulli's theorem and stream
Dynamic continuity equation is general principle, the difference of the pressure produced by restricting element is crossed by measuring fluid stream in pipeline, with reference to
Working condition is known so as to try to achieve flow.Wherein orifice flowmeter starts a kind of standard differential pressure type throttling dress of application in the world
Put, its structure is shown in Fig. 3.
The measurement shortcoming of orifice flowmeter：
1. orifice plate ensures precision with endoporus acute angle line, therefore sensitive to corrosion, wear, fouling, booty, long-term use essence
Exactness is difficult to ensure that.
2. there is flow development length requirement more long, it is difficult to meet, especially to larger caliber, problem is more protruded.
3. the pressure loss is big.
4. the repeatability for measuring belongs to medium level in flow sensor.
The content of the invention
It is an object of the invention to provide a kind of cross flowmeter, to solve the problems, such as to be proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：A kind of cross flowmeter, including, body is measured,
The both sides of the measurement body are provided with flange terminal pad, and the flange terminal pad is fixed by nut and whorl brace rod, described
Measurement body is provided with pressure port, and the middle inside of the measurement body is fixedly connected with throttling element.
Preferably, the pressure port is provided with two, respectively positive pressure port and negative pressure port, and throttling element is located at positive pressure
Between hole and negative pressure port.
Preferably, the pressure port is welded with pressure short tube, valve, three valve groups etc..
Preferably, the inside of the throttling element is provided with venturi orifices.
Preferably, it is provided with pad between the nut and flange terminal pad.
Technique effect of the invention and advantage：The cross flowmeter, certainty of measurement is high, and loose structure energy stream field is carried out
Balance, reduces vortex, vibration and signal noise, and the stability in flow field is greatly improved, so that certainty of measurement is higher；Straight length will
Ask low, flow field can be balanced, adjustment stabilization, and pressure recovery ratio conventional throttle device is fast, substantially reduces and straight length is wanted
Ask；The pressure loss is low, symmetrical balance design, reduces the formation and turbulent skin friction of vortex, dynamic loss of energy is reduced, same
Operating mode under, compare with throttle orifice plate apparatus, the pressure loss is low；Reproducible, multiple openings disperse stress, without acute angle mill
Damage, repeatability can be greatly improved flow field balance and stability；Stain resistance, multiple opening dispersions and sensor edge, energy
Make dirty medium be easy to stream to pass through, so than orifice flowmeter more resistant to dirty；The present invention is reasonable in design, is suitable to produce and promotes
Using.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is side view of the invention；
Fig. 3 is standard differential pressure type throttling arrangement structural representation.
In figure：1 measurement body, 2 flange terminal pads, 3 nuts, 4 whorl brace rods, 5 pressure ports, 6 throttling elements.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The invention provides a kind of cross flowmeter as Figure 1-3, including measurement body 1, the measurement body 1
Both sides be provided with flange terminal pad 2, the flange terminal pad 2 is fixed by nut 3 and whorl brace rod 4, the measurement body 1
Pressure port 5 is provided with, the middle inside of the measurement body 1 is fixedly connected with throttling element 6.
Further, the pressure port 5 is provided with two, respectively positive pressure port and negative pressure port, and throttling element 6 is located at just
Between pressure port and negative pressure port, malleation signal and negative pressure signal of the collection fluid in measurement body 1.
Further, the pressure port 5 is welded with pressure short tube, valve, three valve groups etc., for positive and negative what is collected
Pressure signal guides to differential pressure transmitter respectively.
Further, the inside of the throttling element 6 is provided with venturi orifices, slows down flow velocity, increases measurement precision.
Further, pad is provided between the nut 3 and flange terminal pad 2, increases frictional force.
Operation principle：Measurement body 1 rear and front end is provided with flange terminal pad 2, for the connection of measured pipeline；Measurement pipe
Body 1 is provided with a positive pressure tappings and a negative pressure tappings, and pressure port 5 is located at the upstream and downstream of measurement body 1, for gathering
Malleation signal and negative pressure signal of the fluid in measurement body 1, using ring type pressure；Throttling element 6 is clamped in the middle of measurement body 1
Position, fluid media (medium) produces pressure differential by the upstream and downstream of throttling element 6；Pressure port 5 is welded with pressure short tube, valve, three
Valve group etc., for the positive/negative-pressure signal for collecting to be guided to differential pressure transmitter respectively.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent carried out to which part technical characteristic,
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (5)
1. a kind of cross flowmeter, including measurement body (1), it is characterised in that：The both sides of measurement body (1) are provided with method
Blue terminal pad (2), the flange terminal pad (2) is fixed by nut (3) and whorl brace rod (4), on measurement body (1)
Pressure port (5) is provided with, the middle inside of measurement body (1) is fixedly connected with throttling element (6).
2. a kind of cross flowmeter according to claim 1, it is characterised in that：The pressure port (5) is provided with two, point
Not Wei positive pressure port and negative pressure port, and throttling element (6) is between positive pressure port and negative pressure port.
3. a kind of cross flowmeter according to claim 1, it is characterised in that：The pressure port (5) is welded with pressure
Short tube, valve, three valve groups etc..
4. a kind of cross flowmeter according to claim 1, it is characterised in that：The inside of the throttling element (6) is provided with
Venturi orifices.
5. a kind of cross flowmeter according to claim 1, it is characterised in that：The nut (3) and flange terminal pad
(2) pad is provided between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710209315.0A CN106802168A (en) | 2017-03-31 | 2017-03-31 | A kind of cross flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710209315.0A CN106802168A (en) | 2017-03-31 | 2017-03-31 | A kind of cross flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106802168A true CN106802168A (en) | 2017-06-06 |
Family
ID=58981683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710209315.0A Pending CN106802168A (en) | 2017-03-31 | 2017-03-31 | A kind of cross flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106802168A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2348359Y (en) * | 1998-11-17 | 1999-11-10 | 段祥照 | Integral throttling flowmeter |
| CN201392216Y (en) * | 2009-04-30 | 2010-01-27 | 沈阳聚焦科技有限公司 | Energy-saving differential pressure flowmeter |
| EP2177967A2 (en) * | 2008-10-20 | 2010-04-21 | Schneider Elektronik GmbH | Volume flow measuring device and volume flow regulator with same |
| CN201707077U (en) * | 2010-05-21 | 2011-01-12 | 上海华强浮罗仪表有限公司 | Balance flow meter |
| CN202182741U (en) * | 2011-08-02 | 2012-04-04 | 威海文润测控设备有限公司 | Differential pressure type flow meter |
| CN103925954A (en) * | 2014-05-08 | 2014-07-16 | 邵朋诚 | Venturi orifice plate |
| CN104501884A (en) * | 2014-12-08 | 2015-04-08 | 上海科洋科技股份有限公司 | Rectangular flowmeter |
| CN206862423U (en) * | 2017-03-31 | 2018-01-09 | 上海科洋科技股份有限公司 | A kind of cross flowmeter |
-
2017
- 2017-03-31 CN CN201710209315.0A patent/CN106802168A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2348359Y (en) * | 1998-11-17 | 1999-11-10 | 段祥照 | Integral throttling flowmeter |
| EP2177967A2 (en) * | 2008-10-20 | 2010-04-21 | Schneider Elektronik GmbH | Volume flow measuring device and volume flow regulator with same |
| CN201392216Y (en) * | 2009-04-30 | 2010-01-27 | 沈阳聚焦科技有限公司 | Energy-saving differential pressure flowmeter |
| CN201707077U (en) * | 2010-05-21 | 2011-01-12 | 上海华强浮罗仪表有限公司 | Balance flow meter |
| CN202182741U (en) * | 2011-08-02 | 2012-04-04 | 威海文润测控设备有限公司 | Differential pressure type flow meter |
| CN103925954A (en) * | 2014-05-08 | 2014-07-16 | 邵朋诚 | Venturi orifice plate |
| CN104501884A (en) * | 2014-12-08 | 2015-04-08 | 上海科洋科技股份有限公司 | Rectangular flowmeter |
| CN206862423U (en) * | 2017-03-31 | 2018-01-09 | 上海科洋科技股份有限公司 | A kind of cross flowmeter |
Non-Patent Citations (1)
| Title |
|---|
| 蒋丽芬: "《化工原理》", 31 August 2007, 高等教育出版社, pages: 57 - 58 * |
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