CN201974200U - Wet steam two-phase metering device - Google Patents
Wet steam two-phase metering device Download PDFInfo
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- CN201974200U CN201974200U CN2010206725543U CN201020672554U CN201974200U CN 201974200 U CN201974200 U CN 201974200U CN 2010206725543 U CN2010206725543 U CN 2010206725543U CN 201020672554 U CN201020672554 U CN 201020672554U CN 201974200 U CN201974200 U CN 201974200U
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- 239000012071 phase Substances 0.000 claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 22
- 230000005514 two-phase flow Effects 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000007791 liquid phase Substances 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 13
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 241000372132 Hydrometridae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model provides a wet steam two-phase metering device which comprises an inlet valve, an outlet valve and a bypass valve; and the wet steam two-phase metering device also comprises a separator, a liquid phase metering system and a steam phase metering system. The upper end of the separator is connected with the inlet valve and is used for separating wet steam into liquid water and water steam. The wet steam two-phase metering device separates the wet steam into single-phase water steam and single-phase liquid which are metered by a common single-phase flowmeter; the wet steam two-phase metering device has a reliable working process, high measuring precision and wide measuring range and is not affected by flow patterns; the traditional single-phase flowmeter is known by lots of users; and the traditional single-phase flowmeter is matched with an appropriate measurement model according to the working condition of a measured object so as to solve the measurement problem of numerous two-phase flow parameters within a certain precision range.
Description
Technical field
The relevant a kind of measuring apparatus of the utility model system, particularly a kind of wet steam two-phase flow measurement device.
Background technology
The measuring method of two-phase flow mainly contains flow limit method, tachometric method, volumetric method and mass rate method.Wherein flow limit method is to make fluid flow through restriction device, and for example orifice plate, nozzle, Venturi tube etc. produce differential pressure, is used for calculated flow rate, and this method is used very extensive at single-phase flow measuring face.Because that throttle device has is simple in structure, reliable, easy to maintenance, have enough advantages such as precision, thereby the method for utilizing the differential pressure that produces before and after the throttle device to calculate the two-phase fluid flow also is subjected to various countries researcher's attention, and is applied in the actual engineering.Lot of domestic and international scholar has set up the two-phase flowmeter model to the diphasic flow by restriction device by homogeneous flow and phase-splitting stream, aspect single-phase flow and diphasic stream parameter related, has all carried out a large amount of theoretical researches and experimental verification and correction work.But the relation of two phase flow and pressure drop is still in constantly studying.There is the shortcoming that the influence that is subjected to flow pattern is big, pressure falls greatly, the accuracy of measuring is low in this method.
Summary of the invention
In view of this utility model proposes a kind of wet steam two-phase flow measurement device.The wet steam two-phase flow measurement device that the utility model proposed, after realization is separated into single-phase water steam and single-phase liquid with wet steam, measure by common single-phase flowmeter again, the course of work is reliable, the measuring accuracy height, measurement range is wide, and be not subjected to the influence of flow pattern, traditional single-phase flow instrument is familiar with by many application persons, operating mode according to measurand is equipped with suitable measurement model again, the problems of measurement of can solve in definite accuracy that other metering methods are subjected to that flow pattern influences, accuracy is not high, many diphasic stream parameters such as bigger falling in pressure.
The utility model proposes a kind of wet steam two-phase flow measurement device, comprise admission valve, outlet valve and by-pass valve, this wet steam two-phase flow measurement device also comprises: separation vessel, liquid phase metering system and vapour phase metering system.The separation vessel upper end is connected with admission valve, is used for wet steam is separated into liquid water and steam.
Relevant preferred embodiment of the present utility model and effect thereof, cooperate now graphic explanation as after.
Description of drawings
Fig. 1: wet steam two-phase flow measurement device embodiment process flow diagram.
Description of reference numerals:
1, separation vessel; 2, level meter measuring tank; 3, admission valve; 4, by-pass valve; 5, outlet valve; 6, fluid level transmitter; 7, electrically-controlled valve; 8, differential pressure transmitter; 9, tensimeter; 10, thermometer; 11, nozzle flowmeter; 12, blowoff valve; 13, wet steam inlet pipeline; 14, wet steam outlet conduit; 15, water vapor pipeline; 16, liquid line.
Embodiment
Please refer to the Fig. 1 in the Figure of description, be wet steam two-phase flow measurement device embodiment process flow diagram.The wet steam two-phase flow measurement device that the utility model proposed, utilize separation vessel that wet steam is separated into single-phase water steam and single-phase liquid after, do not measure by common single-phase flow score again.This wet steam two-phase flow measurement device comprises admission valve 3, outlet valve 5 and by-pass valve 4, and this wet steam two-phase flow measurement device also comprises: separation vessel 1, liquid phase metering system and vapour phase metering system.The upper end of separation vessel 1 is connected with admission valve 3, is used for wet steam is separated into liquid water and steam.
This liquid phase metering system comprises: level meter measuring tank 2, fluid level transmitter 6 and electrically-controlled valve 7.Level meter measuring tank 2 is connected with separation vessel 1, is used for the flow of metering liquid.Fluid level transmitter 6 is connected with level meter measuring tank 2.Electrically-controlled valve 7 is connected with the lower end and the outlet valve 5 of fluid level transmitter 6, separation vessel 1.
This vapour phase metering system comprises: nozzle flowmeter 11, tensimeter 9, thermometer 10 and differential pressure transmitter 8.Nozzle flowmeter 11 is used to measure the flow of water vapor, is connected with outlet valve 5.Blowoff valve 12 is arranged in this vapour phase metering system, is arranged between the pipeline of nozzle flowmeter 11 and outlet valve 5.
Control system mainly is made up of level meter sensor, secondary instrument, steam flow integrating instrument, intelligent display meter, pressure temperature measuring Displaying Meter and switch board.
As shown in Figure 1, damp steam is separated into aqueous water and saturated vapor two-phase after entering separation vessel 1 by wet steam inlet pipeline 13.Aqueous water measures by the liquid phase metering system.The opening and closing of the electrically-controlled valve 7 of separation vessel 1 bottom are controlled by control system.Level meter measuring tank 2 is used for liquid towards water and measures, send data to fluid level transmitter 6, when the liquid level of fluid level transmitter 6 demonstrations is lowest order, electrically-controlled valve 7 is closed, when the liquid level of fluid level transmitter 6 demonstrations is most significant digit, electrically-controlled valve 7 is opened, and aqueous water is discharged by the bottom of separation vessel 1, enters liquid line 16.Aqueous water flows out by outlet valve 5, periodically imports wet steam outlet conduit 14, i.e. trunk line, and then each oil well annotated vapour.The unlatching of electrically-controlled valve 7 and closure and the metering of aqueous water flow are by control of the intelligence instrument in the control system and realization.
Saturated steam measures by the vapour phase metering system.Saturated steam after the separation is discharged by separation vessel 1 bottom, enters water vapor pipeline 15, through nozzle flowmeter 11 its flow is measured then, enter pipeline after converging with aqueous water, finally incorporate wet steam outlet conduit 14 into, promptly trunk line is annotated vapour to each oil well.Owing to come vapour that certain fluctuation is arranged, but its frequency is lower, the front and back of nozzle flowmeter 11 are provided with conventional tensimeter 9 and thermometer 10 and can measure gaseous state, adopt the interior subsection integral of different time sections to reach the purpose of accurate measurement fluctuation water vapor flow.Differential pressure transmitter 8 is gathered pressure, temperature and data on flows, and imports intelligence instrument into.In addition, by-pass valve 4 is directly connected between wet steam inlet pipeline 13 and the wet steam outlet conduit 14, and by-pass valve 4 cuts out under this device normal operating conditions, by-pass valve 4 can be opened when needed, increase the dirigibility of device, be beneficial to maintenance, safeguarded circulation safety.
The wet steam two-phase flow measurement device that the utility model proposed in force, separation vessel can adopt modes such as gravity type and spiral-flow type, level gauge be except that adopting the batch box, other liquid level gauge modes that also can adopt gauge glass, separation vessel body to install.
Though technology contents of the present utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; anyly have the knack of this skill person; do not breaking away from spirit of the present utility model a little change and the retouching done; all should be covered by in the category of the present utility model, therefore protection domain of the present utility model is as the criterion when looking claims person of defining.
Claims (3)
1. a wet steam two-phase flow measurement device comprises admission valve, outlet valve and by-pass valve, it is characterized in that, described wet steam two-phase flow measurement device comprises:
Separation vessel, the upper end is connected with described admission valve, is used for wet steam is separated into liquid water and steam;
The liquid phase metering system; And
The vapour phase metering system.
2. wet steam two-phase flow measurement device according to claim 1 is characterized in that, described liquid phase metering system comprises:
One level meter measuring tank is connected with described separation vessel, is used for the flow of metering liquid;
One fluid level transmitter is connected with described level meter measuring tank; And
One electrically-controlled valve is connected with described fluid level transmitter, described separator lower end and described outlet valve.
3. wet steam two-phase flow measurement device according to claim 1 is characterized in that, described vapour phase metering system comprises:
One nozzle flowmeter is used to measure the flow of water vapor, is connected with described outlet valve;
One tensimeter;
One thermometer; And
One differential pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206725543U CN201974200U (en) | 2010-12-22 | 2010-12-22 | Wet steam two-phase metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206725543U CN201974200U (en) | 2010-12-22 | 2010-12-22 | Wet steam two-phase metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974200U true CN201974200U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206725543U Expired - Fee Related CN201974200U (en) | 2010-12-22 | 2010-12-22 | Wet steam two-phase metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201974200U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053726A (en) * | 2016-05-26 | 2016-10-26 | 天邦膜技术国家工程研究中心有限责任公司 | Portable gas-water-ratio tester for water-soluble helium |
| CN109507372A (en) * | 2018-12-21 | 2019-03-22 | 核动力运行研究所 | A kind of steam generator steam wetness measurement system and method |
-
2010
- 2010-12-22 CN CN2010206725543U patent/CN201974200U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053726A (en) * | 2016-05-26 | 2016-10-26 | 天邦膜技术国家工程研究中心有限责任公司 | Portable gas-water-ratio tester for water-soluble helium |
| CN109507372A (en) * | 2018-12-21 | 2019-03-22 | 核动力运行研究所 | A kind of steam generator steam wetness measurement system and method |
| CN109507372B (en) * | 2018-12-21 | 2023-10-20 | 核动力运行研究所 | Steam humidity measurement system and method for steam generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20151222 |
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| EXPY | Termination of patent right or utility model |