CN107246897A - Multichannel self-rectifying low pressure loss subtracts consumption device - Google Patents
Multichannel self-rectifying low pressure loss subtracts consumption device Download PDFInfo
- Publication number
- CN107246897A CN107246897A CN201710661588.9A CN201710661588A CN107246897A CN 107246897 A CN107246897 A CN 107246897A CN 201710661588 A CN201710661588 A CN 201710661588A CN 107246897 A CN107246897 A CN 107246897A
- Authority
- CN
- China
- Prior art keywords
- total head
- pressure
- orifice union
- grading ring
- consumption device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 2
- 206010019233 Headaches Diseases 0.000 description 14
- 230000003068 static effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 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 Fluid Pressure (AREA)
Abstract
Multichannel self-rectifying low pressure loss subtracts consumption device, including clamps flange, orifice union.Orifice union is made up of total head pressure pipe, total head grading ring, negative pressure grading ring, negative pressure pressure pipe.Two symmetrical to clamp flange and clamps orifice union and be integrated, fastener is fixedly connected, total head pressure blind hole is provided with the front end face of orifice union, the pressure blind hole is communicated with total head pressure ring, total head pressure pipe is welded to connect with orifice union and connected with total head grading ring.Several streamlined through holes are processed in orifice union end face.Orifice union of the present invention uses streamlined throttling via design, and negotiability is strong, with self-rectifying function, by taking the total head in pipeline, improves detection differential pressure, reduces crushing.
Description
Technical field
The present invention relates to a kind of flow measurement device, more particularly, to a kind of multichannel self-rectifying low pressure detraction consumption device.
Background technology
Traditional differential-pressure instrumentation, restricting element is installed additional using in table body, a throttling is opened in the middle of restricting element logical
Differential pressure signal is taken out in hole, and such throttling ways of measure pressure due to being blunt form restricting element, and is one before and after throttling element
Fixed takes static pressure apart from inner tubal wall and obtains differential pressure, and the differential pressure signal of taking-up is weaker；Medium drastically shrinks when by throttling element,
Cause crushing very big.And it is also very long to install straight length requirement.It can be accumulated before throttling element differential-pressure instrumentation during long-term use
Gather substantial amounts of impurity, influence the measurement accuracy of throttling element.
So far, the device of drawbacks described above is not overcome also.
The content of the invention
The purpose of the present invention is that the defect for overcoming prior art subtracts there is provided a kind of multichannel self-rectifying low pressure of unique structure
Device is lost.
The present invention is achieved through the following technical solutions its goal of the invention：
Multichannel self-rectifying low pressure loss subtracts consumption device, including clamps flange, orifice union.Orifice union is by total head pressure pipe, total head
Grading ring, negative pressure grading ring, negative pressure pressure pipe composition.Two symmetrical to clamp flange and clamps orifice union and be integrated, and passes through
Sealing gasket is fixedly connected with fastener, and several streamlined through holes are processed in the same circumference equal dividing of orifice union（3-9）, in section
Stream component front end face be provided with several total head pressure blind holes, the pressure blind hole is communicated with total head grading ring, total head pressure pipe and
Orifice union is welded to connect and connected with total head grading ring.There is pressure port in each streamlined through hole throat, pressure port connection
Negative pressure grading ring in orifice union, the negative pressure as instrument, streamline are drawn after grading ring is pressed by negative pressure pressure pipe
The throat of type through hole is provided with through hole and connected with negative pressure grading ring, and negative pressure pressure pipe is welded to connect with orifice union and pressed with negative pressure
Ring is connected, orifice union front/rear end lining sealing gasket.
The present invention has following effect：
1）Orifice union is using streamlined throttling through hole multichannel（3-9）Via design, negotiability is strong, with self-rectifying work(
Can, by taking the total head in pipeline, detection differential pressure is improved, crushing is reduced.
2）Because opening is streamlined, multi-passage design, circulation passage is long, makes wearability, corrosion resistance and resists dirty energy
Power is greatly improved, and very short straight length is only needed to before and after orifice union, reduces energy consumption, saves operating cost.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is sectional views of the Fig. 1 of the present invention along A-A.
In figure：Total head pressure pipe 1, total head grading ring 2, negative pressure grading ring 3, orifice union 4 clamps flange 5, streamlined section
Opening 6, sealing gasket 7, fastener 8, negative pressure pressure pipe 9, total head pressure blind hole 10.
Embodiment
The embodiment combination accompanying drawing of the present invention is illustrated.
Multichannel self-rectifying low pressure loss subtracts consumption device, including clamps flange 5 and orifice union 4.Orifice union 4 is by total head pressure
Pipe 1, total head grading ring 2, negative pressure grading ring 3, negative pressure pressure pipe 9 are constituted.Two symmetrically clamp flange 5 and press from both sides orifice union 4
Dress is integrated, and is fixedly connected by sealing gasket 7 with fastener 8.It is streamlined that several are processed in the same circumference equal dividing of orifice union 4
Through hole（Usually 3-9）.Set in each streamlined through hole throat of the front end face of orifice union 4 and be provided with several total head pressures
Blind hole 10（Usually 3-9）, the pressure blind hole communicated with total head pressure ring 2, and total head pressure pipe 1 is welded with orifice union 4 to be connected
Connect and connected with total head grading ring 2.Negative pressure pressure pipe 9 is welded to connect with orifice union 4 and connected with negative pressure grading ring 3.Total head
Pressure blind hole 10 is communicated to the total head grading ring 2 in orifice union, is drawn after total head grading ring is pressed by total head pressure pipe 1
As the malleation of instrument, the throat of streamlined throttling through hole 6 connects with negative pressure grading ring 3, negative pressure pressure pipe 9 and orifice union 4
It is welded to connect and is connected with negative pressure grading ring 3, the front/rear end of orifice union 4 lining sealing gasket.
During work, when the medium flow field in pipeline crosses orifice union 4, by the total head pressure blind hole of the front end face of orifice union 4
10（Total head is dynamic pressure and duct static pressure sum in pipeline）, by total head grading ring 2, by the pressure of several total head pressure blind holes
After power is pressed, taken out by total head pressure pipe 1, be used as the malleation of differential pressure measuring device；Flow of fluid medium is crossed some on orifice union 4
During individual streamlined throttling through hole 6, due to the solid particle being also equipped with duct bottom in streamlined circulation throttling through hole, pipeline
, will not be in the front end face residual buildup of orifice union 4 and dirty sticky medium can flow through from streamlined throttling through hole, and streamline
Type throttling through hole is multichannel airflow design, plays a part of a self-rectifying to the fluid in pipeline, reduces to installing
The requirement of straight length.Streamlined throttling through hole is gradually tapered up, and minimum is contracted to throat, when fluid flows through throat, dynamic pressure increase,
The static pressure taken out in streamlined throttling through hole throat reduces, the static pressure that several streamlined throttling through holes take out, and passes through throttling group
After negative pressure grading ring 3 is pressed in part, then drawn by negative pressure pressure pipe 9, so, the differential pressure that positive and negative pressure pipe takes out can increase, from
And improve the stability and reliability of differential pressure measuring.
Claims (6)
1. multichannel self-rectifying low pressure loss subtracts consumption device, it is characterised in that：Including clamping flange（5）And orifice union（4）, throttling group
Part（4）By total head pressure pipe（1）, total head grading ring（2）, negative pressure grading ring（3）, negative pressure pressure pipe（9）Composition, two symmetrical
Clamp flange（5）By orifice union（4）Clamp and be integrated, pass through sealing gasket（7）And fastener（8）It is fixedly connected.
2. multichannel self-rectifying low pressure loss as claimed in claim 1 subtracts consumption device, it is characterised in that：In orifice union（4）It is same
Circumference equal dividing processes several streamlined throttling through holes（6）, the quantity of the streamlined throttling through hole 6 is usually 3-9.
3. multichannel self-rectifying low pressure loss as claimed in claim 2 subtracts consumption device, it is characterised in that：In orifice union（4）Before
The each streamlined throttling through hole throat of end face, which is set, is provided with several total head pressure blind holes（10）, the total head pressure blind hole（10）
Quantity be usually 3-9, the pressure blind hole and total head pressure ring（2）Communicate.
4. multichannel self-rectifying low pressure loss as claimed in claim 1 subtracts consumption device, it is characterised in that：The negative pressure pressure pipe（9）
With orifice union（4）Be welded to connect and with negative pressure grading ring（3）Connection.
5. multichannel self-rectifying low pressure loss as claimed in claim 2 or claim 3 subtracts consumption device, it is characterised in that：
The total head pressure blind hole（10）It is communicated to orifice union（4）Interior total head grading ring（2）, by total head grading ring（2）
By total head pressure pipe after pressing（1）Draw the malleation as instrument.
6. multichannel self-rectifying low pressure loss as claimed in claim 1 subtracts consumption device, it is characterised in that：
The total head pressure pipe（1）With orifice union（4）Be welded to connect and with total head grading ring（2）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661588.9A CN107246897A (en) | 2017-08-04 | 2017-08-04 | Multichannel self-rectifying low pressure loss subtracts consumption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661588.9A CN107246897A (en) | 2017-08-04 | 2017-08-04 | Multichannel self-rectifying low pressure loss subtracts consumption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107246897A true CN107246897A (en) | 2017-10-13 |
Family
ID=60013018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710661588.9A Pending CN107246897A (en) | 2017-08-04 | 2017-08-04 | Multichannel self-rectifying low pressure loss subtracts consumption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107246897A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2685831Y (en) * | 2004-04-01 | 2005-03-16 | 邵朋诚 | Clamping ring shape orifice plate throttling gear |
| CN201707077U (en) * | 2010-05-21 | 2011-01-12 | 上海华强浮罗仪表有限公司 | Balance flow meter |
| CN203069212U (en) * | 2012-12-26 | 2013-07-17 | 江阴市神州测控设备有限公司 | Cross section rectifier type flowmeter |
| CN207066520U (en) * | 2017-08-04 | 2018-03-02 | 银川融神威自动化仪表厂(有限公司) | Multichannel self-rectifying low pressure loss subtracts consumption device |
-
2017
- 2017-08-04 CN CN201710661588.9A patent/CN107246897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2685831Y (en) * | 2004-04-01 | 2005-03-16 | 邵朋诚 | Clamping ring shape orifice plate throttling gear |
| CN201707077U (en) * | 2010-05-21 | 2011-01-12 | 上海华强浮罗仪表有限公司 | Balance flow meter |
| CN203069212U (en) * | 2012-12-26 | 2013-07-17 | 江阴市神州测控设备有限公司 | Cross section rectifier type flowmeter |
| CN207066520U (en) * | 2017-08-04 | 2018-03-02 | 银川融神威自动化仪表厂(有限公司) | Multichannel self-rectifying low pressure loss subtracts consumption device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171013 |
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| WD01 | Invention patent application deemed withdrawn after publication |