CN207366026U - A kind of vertically arranged annular oriffice flowmeter - Google Patents
A kind of vertically arranged annular oriffice flowmeter Download PDFInfo
- Publication number
- CN207366026U CN207366026U CN201721357989.7U CN201721357989U CN207366026U CN 207366026 U CN207366026 U CN 207366026U CN 201721357989 U CN201721357989 U CN 201721357989U CN 207366026 U CN207366026 U CN 207366026U
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- CN
- China
- Prior art keywords
- grading ring
- ring room
- pressure pipeline
- vertically arranged
- pipeline
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Abstract
The utility model discloses a kind of vertically arranged annular oriffice flowmeter, belong to instrument and meter for automation field of measuring technique, influence accurate measurement to solve the problems, such as that moisture content in measurement process in gas and other impurities enter pressure pipeline by annular oriffice.Device includes vertical tube, grading ring room, pressure pipeline, orifice plate and water conservancy diversion support, and pressure pipeline tilts down setting from grading ring room to vertical tube direction, and angle of inclination is 15 ° 60 °.Pressure pipeline is obliquely installed by the utility model under vertically arranged mode, and the moisture content being effectively prevented from gas medium enters the pressure pipeline of grading ring room and differential pressure transmitter；Settling tank and blowdown valve are set in grading ring room, efficiently reduce impurity entrance；Scavenging pipeline is set, is periodically purged, reduces the attachment on orifice plate, keeps grading ring room and pressure pipeline unimpeded, ensures the accuracy of gas flow measurement, reduce the workload of maintenance personnel, save labour.
Description
Technical field
The utility model belongs to instrument and meter for automation field of measuring technique, and in particular to a kind of vertically arranged annular oriffice stream
Gauge.
Background technology
The common gas medium of smelter mainly has：Nitrogen, oxygen, argon gas, compressed air, coal gas etc., gas medium
In in addition to normal composition, can also contain the impurity such as moisture content, dust, organic matter and inorganic matter, particularly in northern area season
During section conversion and winter operation, with the reduction of temperature, the increase of day and night temperature, due to aqueous, steam in gas medium
Condensation is deposited in pipeline, and especially the moisture content in compressed air and coal gas and impurity are more, can be produced for gas flow measurement
Raw larger additive error, seriously affects the accuracy of flow measurement.
Gas medium flow measurement at present is more using standard orifice plate, annular oriffice, segmental orifice plate, Venturi tube, Verabar
Deng restricting element, when measuring dirty gas, moisture content and impurity can be deposited near throttling arrangement pressure tappings these restricting elements,
It sometimes can also enter the restricting element such as impulse piping, orifice plate, Verabar especially on vertical pipe, due to gravity
Effect, moisture content and impurity is easier to enter pressure pipeline from restricting element, and as carried out blowdown not in time, gas flow occurs
Big or back to zero phenomenon is run in fluctuation, flow, so as to influence the accurate measurement of gas flow.Ensure its accurate measurement just needs
Maintenance personnel shortens blowing period, considerably increases personnel's maintenance workload, and cannot be fully effective the dirty gas stream of solution
The problem of measurement accuracy.
Utility model content
The purpose of this utility model is to provide a kind of vertically arranged annular oriffice flowmeter, to solve in measurement process
Moisture content and other impurities in gas enter the problem of pressure pipeline influences accurate measurement by annular oriffice.
In order to solve problem above, technical solutions of the utility model are：
A kind of vertically arranged annular oriffice flowmeter, including vertical tube, grading ring room, pressure pipeline, orifice plate and water conservancy diversion support,
Pressure pipeline tilts down setting from grading ring room to vertical tube direction, and angle of inclination is 15 ° -60 °.
Further, the lower section of grading ring room is equipped with settling tank.
Further, grading ring room is equipped with blow device, and blow device includes scavenging pipeline and blow down valve, scavenging pipeline
One end connection grading ring room, scavenging pipeline other end connection purge gass.
Further, sedimentation pot bottom is equipped with blowdown valve.
The utility model or have the beneficial effect that：The utility model inclines pressure pipeline under vertically arranged mode
Tiltedly set, the degree of fouling of gas medium is higher, and angle of inclination is smaller, and the moisture content in gas medium can flow back under the effect of gravity
Into vertical tube, it is effectively prevented from the moisture content in gas medium and enters in the pressure pipeline of grading ring room and differential pressure transmitter, protect
Demonstrate,prove measurement accuracy；Settling tank and blowdown valve be set in grading ring room, and the solid impurity in gas medium enters grading ring room
Afterwards, under the effect of gravity, deposit in settling tank, efficiently reduce into the miscellaneous of grading ring room and differential pressure transmitter pressure pipeline
Matter；Scavenging pipeline is set, is periodically purged, reduces the attachment on orifice plate, keeps grading ring room and pressure pipeline unimpeded, protects
The accuracy of gas flow measurement is demonstrate,proved, reduces the workload of maintenance personnel, saves labour.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of vertically arranged annular oriffice flowmeter.
Reference numeral is as follows：1st, vertical tube；2nd, grading ring room；3rd, pressure pipeline；4th, orifice plate；5th, water conservancy diversion supports；6th, blow device；
7th, scavenging pipeline；8th, blow down valve；9th, settling tank；10th, blowdown valve；11st, flange.
Embodiment 1
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of vertically arranged annular oriffice flowmeter as shown in Figure 1, including vertical tube 1, grading ring room 2, pressure pipeline 3,
Orifice plate 4 and water conservancy diversion support 5, pressure pipeline 3 tilt down setting from grading ring room 2 to 1 direction of vertical tube, and angle of inclination is 15 ° -60 °,
The lower section of grading ring room 2 is equipped with settling tank 9, and 9 bottom of settling tank is equipped with blowdown valve 10, and grading ring room 2 is equipped with blow device 6,
Blow device includes scavenging pipeline 7 and blow down valve 8, and 7 one end of scavenging pipeline connection grading ring room 2, the scavenging pipeline 7 is another
One end connects purge gass.
During operation, dirty gas enters vertical tube 1, and into grading ring room 2, grading ring room 2 connects differential pressure transmitter, passes through
Orifice plate acts on, and measures gas flow；The degree of fouling of gas medium is higher, and tilt angle alpha is smaller, to adapt to different dirty journeys
The gas medium of degree, in this embodiment, dirty gas are coal gas, and tilt angle alpha is arranged to 15 °, the moisture content in gas medium
It can be back in vertical tube 1 under the effect of gravity, the moisture content being effectively prevented from gas medium enters grading ring room 2 and differential pressure becomes
Send in the pressure pipeline of device, ensure measurement accuracy；After solid impurity in gas medium enters grading ring room 2, in gravity
Under effect, deposit in settling tank 9, periodically discharged impurity by blowdown valve 10, efficiently reduce into grading ring room 2 and poor
The impurity of pressure transmitter pressure pipeline；Set blow device 6 periodically to be purged, reduce the attachment on orifice plate 4, holding is pressed
Ring casing 2 and pressure pipeline 3 are unimpeded, ensure the accuracy of gas flow measurement, reduce the workload of maintenance personnel, save work
Power.
Embodiment 2
Difference with embodiment 1 is that dirty gas is argon gas, and tilt angle alpha is arranged to 60 °.
Embodiment 3
Difference with embodiment 1 is that dirty gas is compressed air, and tilt angle alpha is arranged to 30 °.
Embodiment 4
Difference with embodiment 1 is that dirty gas is nitrogen, and tilt angle alpha is arranged to 45 °.
Claims (4)
1. a kind of vertically arranged annular oriffice flowmeter, including vertical tube（1）, grading ring room（2）, pressure pipeline（3）, orifice plate
（4）Supportted with water conservancy diversion（5）, it is characterised in that：The pressure pipeline（3）From grading ring room（2）To vertical tube（1）Direction, which tilts down, to be set
Put, angle of inclination is 15 ° -60 °.
A kind of 2. vertically arranged annular oriffice flowmeter as claimed in claim 1, it is characterised in that：The grading ring room
（2）Lower section be equipped with settling tank（9）.
A kind of 3. vertically arranged annular oriffice flowmeter as claimed in claim 1 or 2, it is characterised in that：The grading ring
Room（2）It is equipped with blow device（6）, the blow device includes scavenging pipeline（7）And blow down valve（8）, the scavenging pipeline（7）
One end connection grading ring room（2）, the scavenging pipeline（7）The other end connects purge gass.
A kind of 4. vertically arranged annular oriffice flowmeter as claimed in claim 2, it is characterised in that：The settling tank（9）
Bottom is equipped with blowdown valve（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357989.7U CN207366026U (en) | 2017-10-20 | 2017-10-20 | A kind of vertically arranged annular oriffice flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357989.7U CN207366026U (en) | 2017-10-20 | 2017-10-20 | A kind of vertically arranged annular oriffice flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207366026U true CN207366026U (en) | 2018-05-15 |
Family
ID=62420809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721357989.7U Expired - Fee Related CN207366026U (en) | 2017-10-20 | 2017-10-20 | A kind of vertically arranged annular oriffice flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207366026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593018A (en) * | 2018-06-05 | 2018-09-28 | 润电能源科学技术有限公司 | A kind of vacuum pump pumping system for measuring quantity, vacuum pump and vacuum system |
-
2017
- 2017-10-20 CN CN201721357989.7U patent/CN207366026U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593018A (en) * | 2018-06-05 | 2018-09-28 | 润电能源科学技术有限公司 | A kind of vacuum pump pumping system for measuring quantity, vacuum pump and vacuum system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180515 Termination date: 20181020 |