CN102928029A - Moisture two-phase flow measuring device with annular chamber gas-liquid separation pressure measuring device - Google Patents
Moisture two-phase flow measuring device with annular chamber gas-liquid separation pressure measuring device Download PDFInfo
- Publication number
- CN102928029A CN102928029A CN2012104640258A CN201210464025A CN102928029A CN 102928029 A CN102928029 A CN 102928029A CN 2012104640258 A CN2012104640258 A CN 2012104640258A CN 201210464025 A CN201210464025 A CN 201210464025A CN 102928029 A CN102928029 A CN 102928029A
- Authority
- CN
- China
- Prior art keywords
- moisture
- gas
- pressure
- chamber
- measuring
- 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.)
- Granted
Links
Images
Abstract
The invention belongs to the field of a moisture gas-liquid two-phase flow measuring technology and relates to a moisture two-phase flow measuring device with an annular chamber gas-liquid separation pressure measuring device, comprising a measuring pipeline, wherein a pipe wall of each pressure measuring position of the measuring pipeline, which is located on the same plane vertical with a axis, is provided with four inner pressure measuring holes; the two of the four inner pressure measuring holes are formed at the maximum diameter position in a horizontal direction of the pipe wall, and the other two of the four inner pressure measuring holes are formed at the maximum diameter position in a vertical direction of the pipe wall; an annular chamber structure is fixedly arranged on the peripheries of the four inner pressure measuring holes; the annular chamber and a measuring pipeline body are coaxial and are fixedly arranged on the outer wall of each pressure measuring position of the measuring pipeline body so as to form a gas-liquid separation chamber with a certain capacity space; a pressure leading opening which is abutted with an outer pressure leading pipe is formed above the vertical axis of the chamber; and a dirt discharging opening which is abutted with an outer dirt discharging pipe is formed below the vertical axis of the chamber. The moisture two-phase flow measuring device has the advantages that the structure is simple, the dependence on a large-sized gas-liquid separator is free, pressure measuring precision is high, pressure measurement is not influenced by a liquid phase, and the implementation is convenient.
Description
Technical field
The invention belongs to the two-phase flowmeter technical field, relate to a kind of moisture two-phase flowmeter device.
Background technology
Moisture extensively exists in nature and industrial circle as a kind of specific form of biphase gas and liquid flow.Flowing law was basic identical when gas and liquid flowed separately, all defer to the basic mass conservation and energy conservation equation, mathematical model is basic simlarities all also, but when their common existence are also flowed simultaneously, because there is larger difference in the dielectric property of two-phase fluid, such as the coefficient of friction resistance, the physical parameter such as fluid density and viscosity is different, and two-phase fluid interphase interaction, influence each other, so that flowing of gas-liquid two-phase shown more complicated characteristic with single-phase mobile comparing, many criterions relations and analytical approach in single-phase flowing all can not be applied directly in the research of gas-liquid two-phase.In recent decades, because traditional industry and infant industry, such as the rapidly development of industrial gas oil, chemical engineering, metallurgical engineering, nuclear reactor engineering, Aerospace Engineering etc., more and more highland requirement has been proposed for the measurement of moisture biphase gas and liquid flow.Yet existing studies show that, the case is extremely complicated in the measurement of moisture biphase gas and liquid flow, and the difficulty of detection is very large.Therefore wet gas measurement all will be important research direction and the study hotspot in flow measurement field within the quite a long time.
Chinese patent ZL 2,008 1 0151346.6 has proposed a kind of double differential pressure throttle moisture measuring device, is made of the embedded taper core body of straight tube and two restriction devices of venturi, adopts independently small-sized gas-liquid sealing chamber realization gas-liquid isolation of external hanging type.Facts have proved, there is following shortcoming in this design: (1) adopts the single-point ways of measure pressure, causes in the moisture pressure measurement information stability not ideal enough, on signal to noise ratio (S/N ratio) low (2) the measurement mechanism tube wall pressure port is only arranged, sealing chamber gas-liquid homeostasis process is relatively long, and the gas-liquid efficiency of isolation is low; (3) moisture measuring device main body and gas-liquid sealing chamber split-type design have increased the complicacy of equipment and the risk of leakage; (4) the gas-liquid sealing chamber needs independent blowdown, higher with respect to the measuring channel position, can not realize being positioned at the synchronous blowdown of measurement mechanism main body pipeline (5) gas-liquid sealing chamber the homonymy of measurement mechanism, affect the weight balancing of device integral body, exist inevitably rotary torque after the installation, affect safety and the life-span of measurement mechanism.
Summary of the invention
The objective of the invention is to overcome the problems referred to above of prior art, improve the ways of measure pressure of moisture two-phase flowmeter device, the moisture two-phase flowmeter device that provides a kind of band to have family gas-liquid isolation pressure vessel, with chamber gas-liquid isolation pressure vessel can improve Measurement sensibility, simple in structure, can with the synchronous blowdown of measurement mechanism main body pipeline and easy to use and reliable.The present invention adopts following technical scheme:
A kind of moisture two-phase flowmeter device with ring casing gas-liquid isolation pressure vessel, comprise measuring channel, offer four inner pressure ports at each pressure place of measuring channel conplane tube wall vertical with axis, two at horizontal direction maximum gauge place, the vertical direction maximal value is directly located two, fix a ring casing structure in the periphery of four inner pressure ports, this ring casing is coaxial with the measuring channel body, be fixed on the measuring channel body pressure place outer wall, formation has the gas-liquid isolated chamber in certain capacity space, offers the impulse mouth that connects external pressure guiding pipe above the chamber vertical axis; Below the chamber vertical axis, offer the sewage draining exit that connects external blow-off pipe.
Moisture two-phase flowmeter device with ring casing gas-liquid isolation pressure vessel according to claim 1 is characterized in that, impulse mouth and sewage draining exit all with four inner pressure ports not in one plane.
As preferred implementation, the internal diameter of described ring casing is between 1.1～2.5 times of measuring channel internal diameter, the chamber interior length be the measurement mechanism internal diameter 0.8 times ~ 2.5 between, the aperture of inner pressure port and the ratio of internal diameter of the pipeline are between 0.05 ~ 0.15, and the ratio of the height of inner pressure port and internal diameter of the pipeline is between 0.06 ~ 0.2.
Compared with prior art, the present invention has following technique effect:
(1) adopt 4 ring casing pressure ways of measure pressure, the gas-liquid homeostasis process is accelerated relatively, and the gas-liquid efficiency of isolation is high, has improved pressure measurement information stability in the moisture; (2) moisture measuring device main body and ring casing gas-liquid isolation pressure vessel integrated design can realize and the synchronous blowdown of measurement mechanism main body pipeline, does not exist rotary torque after the installation, improves safety and the life-span of measurement mechanism.
Description of drawings
Ring casing gas-liquid isolation pressure vessel structural representation (a) is front elevation in Fig. 1 moisture measuring device of the present invention, (b) is sectional view.
Fig. 2 ring casing gas-liquid isolation pressure vessel is on the impact of measuring-signal repeatability.
Description of drawings is as follows: 1 ring casing pressure vessel, and 2 measuring channels, 3 pressure vessel chambers, 4 tube wall pressure ports, 5 pressure guiding pipes-access pressure device, 6 blow-off pipes-dirty device runs in
Embodiment
With reference to the accompanying drawings the present invention is further described.
The present invention is a kind of ring casing gas-liquid isolation pressure vessel that uses in the flux of moisture measurement mechanism, and structural representation as shown in Figure 1.Moisture measuring device can be taper restriction device, venturi restriction device, nozzle and the throttle orifice plate apparatus restriction device etc. for wet gas measurement.
The present invention's each pressure place on the measuring channel 2 of moisture two-phase flowmeter device all arranges a middle ring casing gas-liquid isolation pressure vessel 1.Offer four pressure ports 4 at the measuring channel 2 pressures place conplane tube wall vertical with axis, two at horizontal direction maximum gauge place, the vertical direction maximal value is directly located two, fix a ring casing structure in the periphery of four pressure ports 4, this ring casing is coaxial with measuring channel 2 bodies, be fixed on the measuring channel 2 body pressure place outer walls, formation has the gas-liquid isolated chamber 3 in certain capacity space, above the chamber vertical axis, offer the impulse mouth that connects external pressure guiding pipe 5, the impulse mouth prevents that orifice jet from directly spraying into external pressure guiding pipe not on the plane at four pressure port 4 places; Below the chamber vertical axis, be provided with blow-off pipe 6, connect the blowdown apparatus such as blowoff valve.The chamber internal diameter is between 1.1～2.5 times of measurement mechanism trunk line internal diameter, chamber interior length be measurement mechanism trunk line internal diameter 0.8 times ~ 2.5 between.The ratio of the aperture of pressure port and internal diameter of the pipeline is between 0.05 ~ 0.15, and the ratio of the height of pressure port and internal diameter of the pipeline is between 0.06 ~ 0.3.The external mudhole of pressure vessel and inner pressure port not in one plane, the blow-off pipe direction is straight down.
In the wet gas measurement process, adopt ring casing gas-liquid isolation pressure vessel, pressure measurement signal letter repeatability is better, as shown in Figure 2.
Claims (3)
1. moisture two-phase flowmeter device with ring casing gas-liquid isolation pressure vessel, comprise measuring channel, it is characterized in that, offer four inner pressure ports at each pressure place of measuring channel conplane tube wall vertical with axis, two at horizontal direction maximum gauge place, the vertical direction maximal value is directly located two, fix a ring casing structure in the periphery of four inner pressure ports, this ring casing is coaxial with the measuring channel body, be fixed on the measuring channel body pressure place outer wall, formation has the gas-liquid isolated chamber in certain capacity space, offers the impulse mouth that connects external pressure guiding pipe above the chamber vertical axis; Below the chamber vertical axis, offer the sewage draining exit that connects external blow-off pipe.
2. the moisture two-phase flowmeter device with ring casing gas-liquid isolation pressure vessel according to claim 1 is characterized in that, impulse mouth and sewage draining exit all with four inner pressure ports not in one plane.
3. moisture two-phase flowmeter device according to claim 1, it is characterized in that, the internal diameter of described ring casing is between 1.1～2.5 times of measuring channel internal diameter, the chamber interior length be the measurement mechanism internal diameter 0.8 times ~ 2.5 between, the aperture of inner pressure port and the ratio of internal diameter of the pipeline are between 0.05 ~ 0.15, and the ratio of the height of inner pressure port and internal diameter of the pipeline is between 0.06 ~ 0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464025.8A CN102928029B (en) | 2012-11-15 | 2012-11-15 | With the moisture two-phase flowmeter device of ring casing gas-liquid isolation pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464025.8A CN102928029B (en) | 2012-11-15 | 2012-11-15 | With the moisture two-phase flowmeter device of ring casing gas-liquid isolation pressure vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102928029A true CN102928029A (en) | 2013-02-13 |
| CN102928029B CN102928029B (en) | 2016-05-04 |
Family
ID=47642884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210464025.8A Active CN102928029B (en) | 2012-11-15 | 2012-11-15 | With the moisture two-phase flowmeter device of ring casing gas-liquid isolation pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102928029B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092649A (en) * | 2016-07-23 | 2016-11-09 | 天津大学 | Dampness liquid phase sampler with eccentric orifice plate |
| CN108489560A (en) * | 2018-04-26 | 2018-09-04 | 天津大学 | Vertical venturi moisture measuring device based on porous ring casing pressure vessel |
| CN108548575A (en) * | 2018-04-26 | 2018-09-18 | 天津大学 | A kind of throttling set pressure vessel for measuring flux of moisture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689181Y (en) * | 2003-08-25 | 2005-03-30 | 刘建华 | Internal gyroscopic flow measuring shutoff apparatus |
| CN201034650Y (en) * | 2007-04-20 | 2008-03-12 | 项家从 | Semi-ring voltage equalizing type ring casing pressure sampling stephanoporate shaped hole plate flow rate sensor |
| CN201229188Y (en) * | 2008-07-22 | 2009-04-29 | 赵树行 | On-line blockage cleaning porous pressure tower-shaped flowmeter |
| CN202994217U (en) * | 2012-11-15 | 2013-06-12 | 天津大学 | Moisture two-phase flow measuring device with annular chamber gas-liquid isolation transformer |
-
2012
- 2012-11-15 CN CN201210464025.8A patent/CN102928029B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689181Y (en) * | 2003-08-25 | 2005-03-30 | 刘建华 | Internal gyroscopic flow measuring shutoff apparatus |
| CN201034650Y (en) * | 2007-04-20 | 2008-03-12 | 项家从 | Semi-ring voltage equalizing type ring casing pressure sampling stephanoporate shaped hole plate flow rate sensor |
| CN201229188Y (en) * | 2008-07-22 | 2009-04-29 | 赵树行 | On-line blockage cleaning porous pressure tower-shaped flowmeter |
| CN202994217U (en) * | 2012-11-15 | 2013-06-12 | 天津大学 | Moisture two-phase flow measuring device with annular chamber gas-liquid isolation transformer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092649A (en) * | 2016-07-23 | 2016-11-09 | 天津大学 | Dampness liquid phase sampler with eccentric orifice plate |
| CN106092649B (en) * | 2016-07-23 | 2019-01-08 | 天津大学 | Moisture liquid phase sampler with eccentric orifice plate |
| CN108489560A (en) * | 2018-04-26 | 2018-09-04 | 天津大学 | Vertical venturi moisture measuring device based on porous ring casing pressure vessel |
| CN108548575A (en) * | 2018-04-26 | 2018-09-18 | 天津大学 | A kind of throttling set pressure vessel for measuring flux of moisture |
| CN108489560B (en) * | 2018-04-26 | 2020-03-06 | 天津大学 | Vertical venturi moisture measuring device based on porous ring chamber pressure sampler |
| CN108548575B (en) * | 2018-04-26 | 2020-03-06 | 天津大学 | Throttling device pressure sampler for measuring wet gas flow |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102928029B (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103048019B (en) | Based on two differential pressure flux of moisture measurement mechanisms of long throat venturi | |
| CN105067049B (en) | A kind of differential pressure type flow meter and method based on eddy flow principle | |
| CN206362390U (en) | Fluid flow rate measurement apparatus and pipe-line | |
| CN201034650Y (en) | Semi-ring voltage equalizing type ring casing pressure sampling stephanoporate shaped hole plate flow rate sensor | |
| CN107478278B (en) | It is a kind of based on the differential pressure type two-phase flow measurement method for being mutually separated technology in pipe | |
| CN107882547B (en) | Pipeline type high-water-content oil well liquid production three-phase metering device and method | |
| CN102928029B (en) | With the moisture two-phase flowmeter device of ring casing gas-liquid isolation pressure vessel | |
| CN202994215U (en) | Double throttling three differential pressure moisture-gas two-phase flow measuring system | |
| CN107144312B (en) | Flow measuring apparatus and flow meter assembly | |
| CN102944267B (en) | Double-throttling three-differential-pressure wet-gas two-phase flow measurement system | |
| CN201476819U (en) | Balanced-type V-shaped cone flow meter | |
| CN202994217U (en) | Moisture two-phase flow measuring device with annular chamber gas-liquid isolation transformer | |
| CN202994216U (en) | Double differential pressure wet gas flow measuring device based on long throat neck venturi tube | |
| CN209764327U (en) | Integral double-differential-pressure-taking round-notch-hole-plate gas-liquid two-phase flow measuring device | |
| CN206246115U (en) | A kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism | |
| CN103925954A (en) | Venturi orifice plate | |
| CN202485725U (en) | Expanded Venturi tube flow sensor | |
| CN116754031A (en) | Gas ultrasonic flowmeter based on flow state integer composite set | |
| CN202403742U (en) | Porous balanced throttling meter | |
| CN214502553U (en) | Orifice flowmeter | |
| CN209745461U (en) | Integrated double-differential-pressure-taking gas-liquid two-phase flow measuring device for eccentric orifice plate | |
| CN108489560B (en) | Vertical venturi moisture measuring device based on porous ring chamber pressure sampler | |
| CN205426246U (en) | Liquid hydrogen flow measuring device | |
| CN210571139U (en) | Integrated double-differential-pressure-taking wedge-shaped gas-liquid two-phase flow measuring device | |
| CN209387075U (en) | Based on the natural gas moisture measuring device for being mutually separated in pipe with mutually separating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180620 Address after: 300192 Tianjin Nankai District Nankai District Bai Di Road, Xin Da Yuan 2 Building 2 402 Patentee after: Tianda Taihe Autocontrol Instrument and Meter Technology Co Ltd, Tianjin City Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211124 Address after: No. 255, Wanglong Road, high tech Industrial Park, Xindu District, Chengdu, Sichuan 610041 Patentee after: Chengdu Houhe Precision Measurement Technology Co.,Ltd. Address before: 300192 Tianjin Nankai District Nankai District Bai Di Road, Xin Da Yuan 2 Building 2 402 Patentee before: TIANJIN TJ. UNI TAIHE AUTOMATION CONTROL & INSTRUMENT Co.,Ltd. |