CN102243086A - Oil-water tow-phase flowmeter - Google Patents
Oil-water tow-phase flowmeter Download PDFInfo
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- CN102243086A CN102243086A CN2011101030462A CN201110103046A CN102243086A CN 102243086 A CN102243086 A CN 102243086A CN 2011101030462 A CN2011101030462 A CN 2011101030462A CN 201110103046 A CN201110103046 A CN 201110103046A CN 102243086 A CN102243086 A CN 102243086A
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- differential pressure
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- diverter valve
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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, wherein the 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 class instrument in process automation instrument and the device; it is widely used in 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 life; it is the development industrial and agricultural production; energy savings; improve production quality, increase economic efficiency and the important tool of management level occupies an important position in national economy.In process automation instrument and device, flow instrument has two big functions: as the measuring instrument of process automation control system and total scale of measurement material quantity.
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 deficiencies in the prior art part, a kind of oil-water two-phase flow amount meter is provided.
Oil-water two-phase flow amount meter of the present invention, comprise piston, piston rod, cylinder body, the import three-way diverter valve, the outlet three-way diverter valve, linear displacement transducer, the hermetic resistance removal device, A, the B cavity, A, 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, said import three-way diverter valve is positioned at internal piston, said linear displacement transducer and hermetic resistance removal device parallel with piston rod, wherein, cylinder body is provided with plug in two ends up and down respectively, seal assembly and pressure cap, form an annular crack between the external diameter of piston rod and the internal diameter of cylinder body, the end flat of annular crack and piston and cylinder body constitute A between the two plug inner chamber planes up and down, the B cavity, A, B chamber differential pressure pick-up is 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, an interface inserts temperature sensor, 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 and linear displacement transducer, A, B chamber differential pressure pick-up, temperature sensor, the import and export three-way diverter valve connects, 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, B intraluminal fluid post height change, to A, B chamber changing of interpolation Hair Fixer, this differential pressure information is by obtaining, and transmit to micro computer with A, the corresponding differential pressure pick-up in B chamber.Because A, 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 by 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 empirical model to greatest extent, make measuring apparatus truly immediately reflect the dynamic situation of two-phase in the empirical model to the blank volume of the pipeline between measuring apparatus 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 the external diameter of the internal diameter of cylinder body and piston rod, 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 residual liquid in this part blank volume is to the influence of two-phase instantaneous delivery value;
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, 4 are the import three-way diverter valve, and 5 is linear displacement transducer, and 6 is the hermetic resistance removal device, and 7 is temperature sensor, 8 are the outlet three-way diverter valve, and 9 is A chamber differential pressure pick-up, and 10 is B chamber differential pressure pick-up, 11 is counterbalance weight, and 12 is microcomputer, and 13 is pull bar, 14 is fixed head, and 15 is roller, and 16-1 is a upper plug head, 16-2 is a lower end cap, and 17 is seal assembly, and 18 is pressure cap.
Embodiment
As 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, the B cavity, A, B chamber differential pressure pick- up 9,10, temperature sensor 7, counterbalance weight 11 and microcomputer 12, 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, said linear displacement transducer 5 and hermetic resistance removal device 6 parallel with piston rod 2, wherein, cylinder body is provided with plug 16-1 in two ends about in the of 3 respectively, 16-2, seal assembly 17 and pressure cap 18, form an annular crack between the internal diameter of the external diameter of piston rod 2 and cylinder body 3, the end flat of annular crack and piston 1 and cylinder body 2 constitute A between the two plug inner chamber planes up and down, the B cavity, A, B chamber differential pressure pick- up 9,10 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, an interface inserts temperature sensor, 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 12 and linear displacement transducer 5, A, B chamber differential pressure pick- up 9,10, temperature sensor 7, import and export three-way diverter valve 4,8 connect.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 by 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 as follows:
As shown in Figure 3, treat that fluid measured enters 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, import and export three-way diverter valve and change direction simultaneously, as shown in Figure 4, treat that fluid measured enters 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 finished a working cycle process, the continuous switching of duty in A, B chamber has just formed the continuous working ring of flowmeter.
In A, 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, the B chamber differential pressure signal that A, 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, it is characterized in that, comprise piston, piston rod, cylinder body, the import three-way diverter valve, the outlet three-way diverter valve, linear displacement transducer, the hermetic resistance removal device, A, the B cavity, A, 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, said import three-way diverter valve is positioned at internal piston, said linear displacement transducer and hermetic resistance removal device parallel with piston rod, wherein, cylinder body is provided with plug in two ends up and down respectively, seal assembly and pressure cap, form an annular crack between the external diameter of piston rod and the internal diameter of cylinder body, the end flat of annular crack and piston and cylinder body constitute A between the two plug inner chamber planes up and down, the B cavity, A, B chamber differential pressure pick-up is 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, an interface inserts temperature sensor, 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 and linear displacement transducer, A, B chamber differential pressure pick-up, temperature sensor, the import and export three-way diverter valve connects.
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 by 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 |
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| 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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| CN102243086A true CN102243086A (en) | 2011-11-16 |
| CN102243086B CN102243086B (en) | 2012-10-10 |
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| CN201110103046A Active CN102243086B (en) | 2011-04-25 | 2011-04-25 | Oil-water tow-phase flowmeter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292843A (en) * | 2013-07-15 | 2013-09-11 | 钱如树 | Oil and water two-phase metering device |
| CN103822672A (en) * | 2014-02-07 | 2014-05-28 | 中国科学院力学研究所 | Constant-volume tube piston type oil, gas and water three-phase flow meter on basis of gas and liquid pre-separation and measuring method |
| 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 |
| CN103822677A (en) * | 2014-02-07 | 2014-05-28 | 中国科学院力学研究所 | Constant-volume tube piston type natural gas moisture flowmeter and measuring method |
| CN103867185A (en) * | 2014-04-09 | 2014-06-18 | 习小铁 | Gas and liquid two-phase-element flow meter special for pumping unit |
| CN109540228A (en) * | 2018-12-09 | 2019-03-29 | 中国航发南方工业有限公司 | It is a kind of for measuring the device of microspur hole flow |
Citations (5)
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| 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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2011
- 2011-04-25 CN CN201110103046A patent/CN102243086B/en active Active
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 |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292843A (en) * | 2013-07-15 | 2013-09-11 | 钱如树 | Oil and water two-phase metering device |
| CN103292843B (en) * | 2013-07-15 | 2015-05-20 | 钱如树 | Oil and water two-phase metering device |
| CN103822672A (en) * | 2014-02-07 | 2014-05-28 | 中国科学院力学研究所 | Constant-volume tube piston type oil, gas and water three-phase flow meter on basis of gas and liquid pre-separation and measuring method |
| 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 |
| CN103822677A (en) * | 2014-02-07 | 2014-05-28 | 中国科学院力学研究所 | Constant-volume tube piston type natural gas moisture flowmeter and measuring method |
| 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 |
| CN103867185A (en) * | 2014-04-09 | 2014-06-18 | 习小铁 | Gas and liquid two-phase-element flow meter special for pumping unit |
| CN109540228A (en) * | 2018-12-09 | 2019-03-29 | 中国航发南方工业有限公司 | It is a kind of for measuring the device of microspur hole flow |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102243086B (en) | 2012-10-10 |
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Owner name: HAIAN HUADA PETROLEUM INSTRUMENT CO., LTD. Free format text: FORMER OWNER: QIAN RUSHU Effective date: 20130927 |
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Effective date of registration: 20130927 Address after: 226600 No. 45 Tongyu North Road, Haian County, Nantong, Jiangsu Patentee after: Haian Huada Petroleum Devices Co., Ltd. Address before: 301, room 2, unit 146, Riverside East Road, Haian County, Nantong, Jiangsu 226600, China Patentee before: Qian Rushu |