CN108489560A - Vertical venturi moisture measuring device based on porous ring casing pressure vessel - Google Patents
Vertical venturi moisture measuring device based on porous ring casing pressure vessel Download PDFInfo
- Publication number
- CN108489560A CN108489560A CN201810387070.5A CN201810387070A CN108489560A CN 108489560 A CN108489560 A CN 108489560A CN 201810387070 A CN201810387070 A CN 201810387070A CN 108489560 A CN108489560 A CN 108489560A
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure vessel
- venturi
- pilot channel
- annular pilot
- 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
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
- G01F1/44—Venturi tubes
Abstract
The present invention relates to a kind of vertical venturi moisture measuring devices based on porous ring casing pressure vessel, including the Venturi tube being fixed on vertical pipeline, in the upstream of Venturi tube, a pressure position is respectively arranged in throat and downstream, a pressure vessel is fixed on each pressure position, pressure vessel includes the pressure vessel shell for coating pressure position and built-in connecting pipe, pressure position is close to the lower part of pressure vessel shell, the pressure slot being evenly distributed or porous radial pressure tappings are offered within one week around pressure position, there are annular pilot channels between throttling set at pressure position and pressure vessel shell, the pressure slot or pressure tappings to be interconnected between the medium channel in throttling set and annular pilot channel；The built-in connecting pipe being connected with the annular pilot channel is offered in pressure vessel shell.The present invention can prevent connecting pipe from being blocked by liquid and generate fluid column, to ensure that the reliable measurements of pressure and differential pressure.
Description
Technical field
The present invention relates to the technical fields that multiphase flow rate measures, and moisture two phase flow is measured more particularly to using venturi
The measurement technology of amount.
Background technology
In the industrial process such as natural gas acquisition, conveying, the liquid mediums such as condensate and water flooding are often accompanied by pipeline.When
Gas phase is continuous phase, and when liquid phase is discrete phase, flow regime is moisture.The accurate metering tool of each phase flow rate in moisture flowing
There is important realistic meaning.Flow-measuring method based on differential pressure type principle has obtained commonly used, is especially with venturi
Being widely used for throttling set is general.In traditional pressure vessel structure, connecting pipe and the single pressure port on tube wall or ring casing
Connection.According to GB/T2624.4《The 4th part of full packages fluid flow is measured with the differential pressure device in circular cross-section pipeline：
Venturi tube》, pressure bore dia is and related to caliber, Throttling ratio within the scope of 4mm~10mm, such as DN50 venturi is upper
Trip pressure bore dia only allows between 4mm~5mm.Above-mentioned traditional pressure vessel structure is suitable for monophasic fluid and level is wet
The measurement of throughput, and it is not suitable for the measurement of vertical flux of moisture.By Germicidal efficacy, meet the mark when moisture flows through vertically
When the DN50 ring casing pressure venturi of standard, the fluid column that height changes over time is formd in connecting pipe, gives the measurement band of differential pressure
Error is carried out.
Invention content
The present invention provides a kind of vertical venturi moisture measuring device based on porous ring casing pressure vessel, used by take
Depressor can prevent connecting pipe from being blocked by liquid and generate fluid column, to ensure that the reliable measurements of pressure and differential pressure.For in solution
Technical problem is stated, the technical solution adopted by the present invention is：
A kind of vertical venturi moisture measuring device based on porous ring casing pressure vessel, including be fixed on vertical pipeline
Venturi tube is respectively arranged a pressure position in the upstream of Venturi tube, throat and downstream, one is fixed on each pressure position
A pressure vessel, which is characterized in that the pressure vessel includes the pressure vessel shell for coating pressure position and built-in connecting pipe, is taken
Splenium position offers the pressure slot being evenly distributed or porous radial for one week close to the lower part of pressure vessel shell, around pressure position
Pressure tappings, there are annular pilot channel between the throttling set at pressure position and pressure vessel shell, the pressure slot or
Pressure tappings to be interconnected between the medium channel in throttling set and annular pilot channel；It is offered in pressure vessel shell
The built-in connecting pipe being connected with the annular pilot channel.
Preferably, in the platform for the deposition that the bottom in annular pilot channel is equipped with the reflux for accelerating liquid and reduces dirt
Rank or slope.
On each cross section of present invention pressure needed for venturi, taken using elongated pressure slot or porous radial pressure tappings
Pressure, pressure tappings outside packet pass through built-in connecting pipe and pressure, differential pressure sensing with annular pilot channel in pilot channel roof
Device connects, and realizes the measurement of pressure and differential pressure.Its operation principle is, compared with traditional ways of measure pressure, this programme is taken by increasing
The length or quantity of mouth are pressed, to increase the sectional area of pressure tappings, the liquid to enter pilot channel by pressure tappings provides
Flow back to the chance of pipeline；Annular pilot channel has larger sectional area, can equally be set to avoid the blocking of liquid, the bottom of the channel
There are step or slope, the reflux for accelerating liquid, and reduce the deposition of dirt；The volume in pilot channel is larger, can be to liquid
Rush in, flow out caused by pressure fluctuation provide cushioning effect；There was only gas phase media, built-in connecting pipe at the top in pilot channel
Its pressure is led into pressure/differential pressure sensor and realizes measurement.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings discussed below is only some embodiments of the present invention, for this
For the those of ordinary skill of field, without creative efforts, others are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the pressure vessel schematic diagram that venturi pressure of embodiment of the present invention position uses elongated pressure slot.
Fig. 2 is the pressure vessel schematic diagram that venturi pressure of embodiment of the present invention position uses radial pressure tappings.
Fig. 3 is the pressure vessel diagrammatic cross-section that venturi pressure of embodiment of the present invention position uses elongated pressure slot.
Fig. 4 is the pressure vessel diagrammatic cross-section that venturi pressure of embodiment of the present invention position uses radial pressure tappings.
Fig. 5 is each pressure position schematic diagram of venturi of the embodiment of the present invention.
Description of the drawings is as follows：1 --- venturi pressure position, 2 --- elongated pressure slot, 3 --- porous radial pressure
Mouthful, 4 --- medium channel, 5 --- annular pilot channel, 6 --- pressure vessel shell, 7 --- step, 8 --- built-in pilot
Pipe, 9 --- pressure sensor, 10 --- venturi upstream pressure position, 11 --- venturi throat pressure position, 12 --- text
Pressure position in downstream in mound
Specific implementation mode
With reference to the accompanying drawings and examples, the present invention is described in further detail.It is emphasized that following implement
Example is merely to illustrate the present invention, but is not defined to the scope of the present invention.Likewise, following embodiment is only the portion of the present invention
Point embodiment and not all embodiments, what those of ordinary skill in the art were obtained under the premise of not making creative work
All other embodiment, shall fall within the protection scope of the present invention.
Referring to Fig.1, Fig. 2, Fig. 1, Fig. 2 are the pressure vessel schematic diagrames at one embodiment of the invention venturi pressure position.This
It sentences and illustrates for pressure measurement, which is applied in combination to the measurement that differential pressure may be implemented.
Moisture flows through a venturi, and venturi is vertically-mounted, and medium flow direction is bottom-up.In certain pressure of venturi
On position 1, Fig. 1 uses 4 elongated pressure slots 2, and Fig. 2 uses 20 radial pressure tappings 3, the length of slot or hole in an axial direction
It is 5mm, medium channel 4 is made to be connected to annular pilot channel 5.Annular pilot channel 5 by near pressure position 1 outer wall and take
The inner wall of depressor shell 6 is enclosed, and bottom is equipped with step 7 or liquid reflux and blowdown, annular pilot channel 5 are convenient in slope
Top is connect with built-in connecting pipe 8, and the pressure that institute's fetch bit is set is led to the measurement that pressure sensor 9 realizes pressure by the latter.
With reference to Fig. 5, Fig. 5 is the schematic diagram at each pressure position of venturi of the embodiment of the present invention.This programme pressure vessel is suitable for
The all three pressure positions, i.e. upstream pressure position 10, throat's pressure position 11 and downstream pressure position of venturi shown in Fig. 5
12。
The foregoing is merely some embodiments of the present invention, the scope of the claims being not intended to limit the invention is all at this
Within the scope of the mentality of designing of invention, made by any modification, improve or equivalent transformation etc., be all contained in protection scope of the present invention
Within.
Claims (2)
1. a kind of vertical venturi moisture measuring device based on porous ring casing pressure vessel, including the text that is fixed on vertical pipeline
Venturi is respectively arranged a pressure position in the upstream of Venturi tube, throat and downstream, one is fixed on each pressure position
Pressure vessel, which is characterized in that the pressure vessel includes the pressure vessel shell for coating pressure position and built-in connecting pipe, pressure
Position offers the pressure slot being evenly distributed for one week around pressure position or porous radial takes close to the lower part of pressure vessel shell
Mouth is pressed, there are annular pilot channel between the throttling set at pressure position and pressure vessel shell, the pressure slot or is taken
Pressure mouth to be interconnected between the medium channel in throttling set and annular pilot channel；Offered in pressure vessel shell with
The built-in connecting pipe that the annular pilot channel is connected.
2. vertical venturi moisture measuring device according to claim 1, which is characterized in that the bottom in annular pilot channel
Portion is equipped with the reflux for accelerating liquid and reduces step or the slope of the deposition of dirt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810387070.5A CN108489560B (en) | 2018-04-26 | 2018-04-26 | Vertical venturi moisture measuring device based on porous ring chamber pressure sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810387070.5A CN108489560B (en) | 2018-04-26 | 2018-04-26 | Vertical venturi moisture measuring device based on porous ring chamber pressure sampler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108489560A true CN108489560A (en) | 2018-09-04 |
| CN108489560B CN108489560B (en) | 2020-03-06 |
Family
ID=63313136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810387070.5A Active CN108489560B (en) | 2018-04-26 | 2018-04-26 | Vertical venturi moisture measuring device based on porous ring chamber pressure sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108489560B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115628789A (en) * | 2022-12-21 | 2023-01-20 | 成都中油翼龙科技有限责任公司 | Three-phase flow non-separation on-line metering device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102928029A (en) * | 2012-11-15 | 2013-02-13 | 天津大学 | Moisture two-phase flow measuring device with annular chamber gas-liquid separation pressure measuring device |
| CN105424106A (en) * | 2015-11-04 | 2016-03-23 | 西安交通大学 | V-cone flowmeter vertical installation structure |
| CN208091504U (en) * | 2018-04-26 | 2018-11-13 | 天津大学 | Vertical venturi moisture measuring device based on porous ring casing pressure vessel |
-
2018
- 2018-04-26 CN CN201810387070.5A patent/CN108489560B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102928029A (en) * | 2012-11-15 | 2013-02-13 | 天津大学 | Moisture two-phase flow measuring device with annular chamber gas-liquid separation pressure measuring device |
| CN105424106A (en) * | 2015-11-04 | 2016-03-23 | 西安交通大学 | V-cone flowmeter vertical installation structure |
| CN208091504U (en) * | 2018-04-26 | 2018-11-13 | 天津大学 | Vertical venturi moisture measuring device based on porous ring casing pressure vessel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115628789A (en) * | 2022-12-21 | 2023-01-20 | 成都中油翼龙科技有限责任公司 | Three-phase flow non-separation on-line metering device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108489560B (en) | 2020-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7987733B2 (en) | Determination of density for metering a fluid flow | |
| CN103868560B (en) | Measuring method of three-phase mixed-transportation constant volume pipe piston type oil-gas-water three-phase flow meter | |
| CN202281632U (en) | Differential pressure type virtual flowmeter | |
| CN104165664B (en) | Pitot bar integrated mass flow meter | |
| CN208091504U (en) | Vertical venturi moisture measuring device based on porous ring casing pressure vessel | |
| CN203364888U (en) | Differential pressure type flow sensor and flowmeter | |
| CN108489560A (en) | Vertical venturi moisture measuring device based on porous ring casing pressure vessel | |
| CN208398948U (en) | It is a kind of for measuring the throttling set pressure vessel of flux of moisture | |
| CN204007745U (en) | Pitot bar integrated mass flow meter | |
| CN105424106B (en) | A kind of vertically-mounted structure of V cone flow meters | |
| CN108548575A (en) | A kind of throttling set pressure vessel for measuring flux of moisture | |
| CN109540229A (en) | Phase unsteady flow saturated steam flowing meter | |
| CN108020278A (en) | It can accurately measure the wide range orifice flowmeter of tiny flow quantity | |
| CN110411525A (en) | Multiphase flow assay methods | |
| CN208012684U (en) | Multiphase flow test device based on flowmeter and water-containing machine | |
| CN203772325U (en) | Integral pore plate flowmeter | |
| CN209027599U (en) | A kind of redundant flow measuring device | |
| CN209342165U (en) | Double flute ring wedge differential pressure device | |
| CN207816367U (en) | Wide range orifice flowmeter | |
| CN105865557A (en) | A super-high-viscosity gas-liquid two phase separation metering device | |
| CN203011438U (en) | Gas-liquid two-phase flow pitotbar flow meter | |
| CN201964913U (en) | Internal-mounted combined venturi nozzle throttling device | |
| CN206648702U (en) | Gas displacement measurement apparatus | |
| CN105526979B (en) | Gas drainage under suction flow measurement device | |
| CN206772385U (en) | A kind of bubble type liquid level detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210621 Address after: 1805-1808, Hetong building, north of the middle section of Anshan West Road, Nankai District, Tianjin (Science and Technology Park) Patentee after: TIANJIN TJ.UNI TAIHE AUTOMATION CONTROL & INSTRUMENT Co.,Ltd. Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University |
|
| TR01 | Transfer of patent right |