CN102243086B - Oil-water tow-phase flowmeter - Google Patents
Oil-water tow-phase flowmeter Download PDFInfo
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- CN102243086B CN102243086B CN201110103046A CN201110103046A CN102243086B CN 102243086 B CN102243086 B CN 102243086B CN 201110103046 A CN201110103046 A CN 201110103046A CN 201110103046 A CN201110103046 A CN 201110103046A CN 102243086 B CN102243086 B CN 102243086B
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Abstract
The invention provides an oil-water two-phase flowmeter. The flowmeter comprises a piston, piston rods, a cylinder, an inlet three-way reversing valve, an outlet three-way reversing valve, a linear displacement sensor, a seal resistance removal device, cavities A and B, differential pressure transducers for the cavities A and B, a temperature sensor, a balance weight and a micro-computer, whereinthe piston rods are arranged at upper and lower ends of the piston; the cylinder is sleeved outside the piston; the inlet three-way reversing valve is positioned inside the piston; and the linear displacement sensor and the seal resistance removal device are parallel to the piston rods. The oil-water two-phase flowmeter has the advantages that: 1, total instant flow and accumulated flow of a two-phase mixture can be measured online, and the respective instant flow and accumulated flow of oil and water can be simultaneously measured; 2, the flowmeter can be connected in series between an experimental model and a back pressure valve, the blank volume of pipelines between the experimental model and the measurement device can be minimized, so that the measurement device can truly and instantly reflect the dynamic situation of two phases in the experimental model; and 3, the flow meter can endure high pressure.
Description
Technical field
The present invention relates to a kind of oil-water two-phase flow amount meter, belong to the instrument technical field.
Background technology
Flowmeter is one of big type of instrument in process automation instrument and the device; Its quilt is adaptable across national economy every field such as metallurgy, electric power, coal, chemical industry, oil, traffic, building, light textile, food, medicine, agricultural, environmental protection and people's daily lifes; It is the development industrial and agricultural production; Energy savings is improved production quality, and the important tool of increasing economic efficiency with management level occupies an important position in national economy.In process automation instrument and device, flow instrument has two big functions: as measuring instrument and total scale of measuring material quantity of process automation control system.
In oil field scientific research process, do a large amount of experiments, the accurate measurement of profit two-phase mixture in the experimentation, but existing flowmeter accuracy is not high enough.
Summary of the invention
The objective of the invention is to overcome the weak point of prior art, a kind of oil-water two-phase flow amount meter is provided.
Oil-water two-phase flow amount meter of the present invention comprises piston, piston rod, cylinder body, import three-way diverter valve, outlet three-way diverter valve, linear displacement transducer, hermetic resistance removal device, A chamber, B chamber, A chamber differential pressure pick-up, B chamber differential pressure pick-up, temperature sensor, counterbalance weight and microcomputer, and said piston rod is positioned at piston two ends up and down; Said cylinder body is enclosed within outside the piston, and said import three-way diverter valve is positioned at internal piston, and said linear displacement transducer and hermetic resistance removal device and piston rod parallel; Wherein, Cylinder body is provided with plug, seal assembly and pressure cap in two ends up and down respectively, forms an annular crack between the external diameter of piston rod and the internal diameter of cylinder body, the formation A chamber and the B chamber between the two plug inner chamber planes up and down of the end flat of annular crack and piston and cylinder body; A chamber differential pressure pick-up and B chamber differential pressure pick-up are installed on the lower end cap; And with each self-corresponding cavity plug endoporus end parts parallel, the upper plug head of cylinder body has two interfaces, one of them interface links to each other with A chamber differential pressure pick-up; Another interface links to each other with the outlet three-way diverter valve; The lower end cap of cylinder body has three interfaces, and an interface inserts temperature sensor, and an interface links to each other with B chamber differential pressure pick-up; Another links to each other with the outlet three-way diverter valve; Said microcomputer is connected with linear displacement transducer, A chamber differential pressure pick-up, B chamber differential pressure pick-up, temperature sensor, import and export three-way diverter valve, and when piston upper mounting plate and cylinder body upper plug head endoporus plane contact, A chamber differential pressure pick-up indicating value should be zero; When piston lower platform and cylinder body lower end cap endoporus plane contact, B chamber differential pressure pick-up indicating value is zero.
An interface of said A chamber differential pressure pick-up is connected with cylinder body upper plug head endoporus plane, another interface by the road with the little hole link of piston platform, form differential pressure measurement loop, A chamber; Interface of said B chamber differential pressure pick-up and cylinder body lower end cap endoporus plane are connected, another interface by the road with the little hole link of piston lower platform, form differential pressure measurement loop, B chamber.Because A chamber, B intraluminal fluid post height change, to the A chamber, B chamber changing of interpolation Hair Fixer, this differential pressure information by with A chamber, the corresponding differential pressure pick-up acquisition in B chamber, and transmit to micro computer.Because A chamber, B intraluminal fluid post height change, make linear relative movement to piston and two ends piston rod and cylinder body, plug, pressure cap etc., its straight-line displacement amount information is obtained by linear displacement transducer, and transmits to micro computer.Piston and two ends piston rod and cylinder body, plug, pressure cap etc. are made the friction of motion resistance of linear relative movement, its seal assembly and are removed by the hermetic resistance removal device.
Suspension ring are arranged respectively on the upper plug head of said cylinder body and the counterbalance weight, connect with steel wire between two suspension ring, function of wire is on two rollers;
Said piston rod reaches last bottom plate and linear displacement transducer and hermetic resistance removal device through two pull bars and fixes.
Oil-water two-phase flow amount meter of the present invention has following technique effect:
1, can total instantaneous delivery and the integrated flow of on-line determination two-phase mixture, and measure the wherein instantaneous delivery and the integrated flow of each phase of profit simultaneously;
2,, reduce the blank volume of pipeline between empirical model to WT-MSR to greatest extent, make WT-MSR truly immediately reflect the dynamic situation of two phases in the empirical model because but on-line determination can be connected on this flowmeter between empirical model and the check valve;
3, can bear high pressure, can continuous uninterrupted work;
4, can work automatically, data are stored and teletransmission automatically;
5, utilize the control of size of external diameter of internal diameter and the piston rod of cylinder body, obtained the annular crack of a standard, utilize this annular crack, make that elongating every cubic centimetre of fluid column measuring height ratio is easier to, and then improved measuring accuracy as A chamber and B chamber;
6, internal piston is integrated fluid inlet three-way diverter valve to be measured; Make that the blank volume of pipeline between import three-way diverter valve and A, the B chamber interface is almost nil; This has just eliminated T-valve in handoff procedure, and the debris in this part blank volume is to the influence of two phase instantaneous delivery values;
7, the hermetic resistance removal device has been removed the friction of motion resistance of seal assembly.
Description of drawings
Fig. 1 is a front section view of the present invention;
Fig. 2 is a side sectional view of the present invention;
Fig. 3 is the structural representation under a kind of duty of the present invention;
Fig. 4 is the structural representation under the another kind of duty of the present invention;
Wherein, 1 is piston, and 2 is piston rod, and 3 is cylinder body, and 4 are the import three-way diverter valve; 5 is linear displacement transducer, and 6 is the hermetic resistance removal device, and 7 is temperature sensor, and 8 are the outlet three-way diverter valve, and 9 is A chamber differential pressure pick-up; 10 is B chamber differential pressure pick-up, and 11 is counterbalance weight, and 12 is microcomputer, and 13 is pull bar, and 14 is fixed head; 15 is roller, and 16-1 is a upper plug head, and 16-2 is a lower end cap, and 17 is seal assembly, and 18 is pressure cap.
Embodiment
Like Fig. 1, shown in 2, flowmeter of the present invention comprises piston 1, piston rod 2, cylinder body 3, import three-way diverter valve 4, outlet three-way diverter valve 8, linear displacement transducer 5, hermetic resistance removal device 6, A chamber, B chamber, A chamber differential pressure pick-up 9, B chamber differential pressure pick-up 10, temperature sensor 7, counterbalance weight 11 and microcomputer 12, and said piston rod 2 is positioned at piston, and about in the of 1 two ends; Said cylinder body 3 is enclosed within outside the piston 1; Said import three-way diverter valve 4 is positioned at piston 1 inside, and said linear displacement transducer 5 parallels with hermetic resistance removal device 6 and piston rod 2, wherein; Cylinder body is provided with plug 16-1,16-2, seal assembly 17 and pressure cap 18 in two ends about in the of 3 respectively; Form an annular crack between the internal diameter of the external diameter of piston rod 2 and cylinder body 3, the formation A chamber and the B chamber between the two plug inner chamber planes up and down of the end flat of annular crack and piston 1 and cylinder body 2, A chamber differential pressure pick-up 9 is installed on the lower end cap with B chamber differential pressure pick-up 10; And with each self-corresponding cavity plug endoporus end parts parallel; The upper plug head of cylinder body has two interfaces, and one of them interface links to each other with A chamber differential pressure pick-up, and another interface links to each other with the outlet three-way diverter valve; The lower end cap of cylinder body has three interfaces; An interface inserts temperature sensor, and an interface links to each other with B chamber differential pressure pick-up, and another links to each other with the outlet three-way diverter valve; Said microcomputer 12 and linear displacement transducer 5, A chamber differential pressure pick-up 9 is connected with B chamber differential pressure pick-up 10, temperature sensor 7, import and export three-way diverter valve 4,8.An interface of said A chamber differential pressure pick-up is connected with cylinder body upper plug head endoporus plane, another interface by the road with the little hole link of piston platform; Interface of said B chamber differential pressure pick-up and cylinder body lower end cap endoporus plane are connected, another interface by the road with the little hole link of piston lower platform.On the upper plug head 16-1 of said cylinder body 3 and the counterbalance weight 11 suspension ring are arranged respectively, connect with steel wire between two suspension ring, function of wire is on two rollers 15; Said piston rod 2 is through two pull bars 13 and upward bottom plate 14 is fixing with linear displacement transducer 5 and hermetic resistance removal device 6.
Flowmeter workflow of the present invention is following:
As shown in Figure 3, treat that fluid measured gets into B chamber (supposing to start working from the B chamber earlier) through inlet three-way diverter valve 4, the fluid column in B chamber is increased, cylinder body is to bottom offset, and counterbalance weight moves up, and A chamber fluid column is compressed minimizing, and liquid is discharged through outlet three-way diverter valve 8.Liquid level increases to most significant digit when the B chamber, when A chamber liquid level reduces to zero-bit, imports and exports three-way diverter valve and changes direction simultaneously; As shown in Figure 4, treat that fluid measured gets into the A chamber through the inlet three-way diverter valve, this moment, A chamber liquid level constantly increased; Cylinder body moves up; Counterbalance weight moves down, and B chamber fluid column is compressed minimizing, and fluid is discharged through the outlet three-way diverter valve.Below just accomplished a working cycle process, the continuous switching of duty in A chamber, B chamber has just formed the continuous working ring of flowmeter.
In the A chamber, the continuous conversion of B chamber liquid-column height; Cylinder body is also upper and lower displacement synchronously the time; Micro computer is constantly gathered the cylinder body displacement signal of linear displacement transducer acquisition and A chamber, the B chamber differential pressure signal that A chamber differential pressure pick-up, B chamber differential pressure pick-up obtain, and the temperature signal of temperature sensor.Storage is also handled these information, and sends action command to importing and exporting three-way diverter valve.
Claims (4)
1. oil-water two-phase flow amount meter is characterized in that, comprises piston, piston rod, cylinder body, import three-way diverter valve, outlet three-way diverter valve, linear displacement transducer, hermetic resistance removal device, A chamber, B chamber, A chamber differential pressure pick-up, B chamber differential pressure pick-up, temperature sensor, counterbalance weight and microcomputer; Said piston rod is positioned at piston two ends up and down; Said cylinder body is enclosed within outside the piston, and said import three-way diverter valve is positioned at internal piston, and said linear displacement transducer and hermetic resistance removal device and piston rod parallel; Wherein, Cylinder body is provided with plug, seal assembly and pressure cap in two ends up and down respectively, forms an annular crack between the external diameter of piston rod and the internal diameter of cylinder body, the formation A chamber and the B chamber between the two plug inner chamber planes up and down of the end flat of annular crack and piston and cylinder body; A chamber differential pressure pick-up and B chamber differential pressure pick-up are installed on the lower end cap; And with each self-corresponding cavity plug endoporus end parts parallel, the upper plug head of cylinder body has two interfaces, one of them interface links to each other with A chamber differential pressure pick-up; Another interface links to each other with the outlet three-way diverter valve; The lower end cap of cylinder body has three interfaces, and an interface inserts temperature sensor, and an interface links to each other with B chamber differential pressure pick-up; Another links to each other with the outlet three-way diverter valve, and said microcomputer is connected with linear displacement transducer, A chamber differential pressure pick-up, B chamber differential pressure pick-up, temperature sensor, import and export three-way diverter valve.
2. oil-water two-phase flow amount meter according to claim 1 is characterized in that, an interface of said A chamber differential pressure pick-up is connected with cylinder body upper plug head endoporus plane, another interface by the road with the little hole link of piston platform; Interface of said B chamber differential pressure pick-up and cylinder body lower end cap endoporus plane are connected, another interface by the road with the little hole link of piston lower platform.
3. oil-water two-phase flow amount meter according to claim 1 and 2 is characterized in that, suspension ring are arranged respectively on the upper plug head of said cylinder body and the counterbalance weight, connects with steel wire between two suspension ring, and function of wire is on two rollers.
4. oil-water two-phase flow amount meter according to claim 3 is characterized in that, said piston rod reaches last bottom plate and linear displacement transducer and hermetic resistance removal device through two pull bars and fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110103046A CN102243086B (en) | 2011-04-25 | 2011-04-25 | Oil-water tow-phase flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110103046A CN102243086B (en) | 2011-04-25 | 2011-04-25 | Oil-water tow-phase flowmeter |
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| Publication Number | Publication Date |
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| CN102243086A CN102243086A (en) | 2011-11-16 |
| CN102243086B true CN102243086B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110103046A Expired - Fee Related CN102243086B (en) | 2011-04-25 | 2011-04-25 | Oil-water tow-phase flowmeter |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292843B (en) * | 2013-07-15 | 2015-05-20 | 钱如树 | Oil and water two-phase metering device |
| CN103822677B (en) * | 2014-02-07 | 2017-01-04 | 中国科学院力学研究所 | A kind of measuring method of constant volume tube piston type natural gas wet gas meter |
| CN103822672B (en) * | 2014-02-07 | 2017-03-01 | 中国科学院力学研究所 | A kind of measuring method of the constant volume tube piston type oil-gas-water three phase flow quantity meter based on gas-liquid pre-separation |
| CN103822671A (en) * | 2014-02-07 | 2014-05-28 | 中国科学院力学研究所 | Constant-volume tube piston type oil-water-phase flowmeter and measuring method |
| CN103867185B (en) * | 2014-04-09 | 2017-01-11 | 习小铁 | Gas and liquid two-phase-element flow meter special for pumping unit |
| CN109540228B (en) * | 2018-12-09 | 2020-05-19 | 中国航发南方工业有限公司 | Device for measuring microspur hole flow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507952A (en) * | 1982-09-14 | 1985-04-02 | Icg Gasbec Inc. | Apparatus for testing flow meters |
| CN201149500Y (en) * | 2008-01-18 | 2008-11-12 | 张良寅 | Piston displacement type flow meter |
| CN201514261U (en) * | 2009-09-18 | 2010-06-23 | 浙江省计量科学研究院 | Plunger-type gas flow calibration device |
| CN101819052A (en) * | 2010-04-21 | 2010-09-01 | 无锡求信流量仪表有限公司 | Flow transmitter provided with double differential pressure sensors and pressure difference measurement method |
| CN201724697U (en) * | 2010-08-03 | 2011-01-26 | 深圳市泉源仪表设备制造有限公司 | Variable-area target-type flowmeter capable of measuring dual parameters of differential pressure and displacement |
-
2011
- 2011-04-25 CN CN201110103046A patent/CN102243086B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507952A (en) * | 1982-09-14 | 1985-04-02 | Icg Gasbec Inc. | Apparatus for testing flow meters |
| CN201149500Y (en) * | 2008-01-18 | 2008-11-12 | 张良寅 | Piston displacement type flow meter |
| CN201514261U (en) * | 2009-09-18 | 2010-06-23 | 浙江省计量科学研究院 | Plunger-type gas flow calibration device |
| CN101819052A (en) * | 2010-04-21 | 2010-09-01 | 无锡求信流量仪表有限公司 | Flow transmitter provided with double differential pressure sensors and pressure difference measurement method |
| CN201724697U (en) * | 2010-08-03 | 2011-01-26 | 深圳市泉源仪表设备制造有限公司 | Variable-area target-type flowmeter capable of measuring dual parameters of differential pressure and displacement |
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| CN102243086A (en) | 2011-11-16 |
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