CN103983327A - Three-interface measuring instrument in oil storage tank - Google Patents
Three-interface measuring instrument in oil storage tank Download PDFInfo
- Publication number
- CN103983327A CN103983327A CN201410239391.2A CN201410239391A CN103983327A CN 103983327 A CN103983327 A CN 103983327A CN 201410239391 A CN201410239391 A CN 201410239391A CN 103983327 A CN103983327 A CN 103983327A
- Authority
- CN
- China
- Prior art keywords
- interface
- storage tank
- chip microcomputer
- output terminal
- output end
- 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.)
- Pending
Links
- 230000004888 barrier function Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 profit Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a three-interface measuring instrument in an oil storage tank and relates to the technical field of oil field gathering and transportation. The three-interface measuring instrument comprises an upper fixing piece and a lower fixing piece which are arranged in the oil storage tank. The upper fixing piece and the lower fixing piece are connected through three hollow pipes. A sensor is connected in each hollow pipe. A magnetic floater is arranged outside each hollow pipe. The sensors are connected with a single chip microcomputer selecting module. The input end of the single chip microcomputer selecting module is connected with a constant current source circuit. The output end of the single chip microcomputer selecting module is connected with an amplifying circuit. The output end of the amplifying circuit is connected with a switching circuit. The output end of the switching circuit is connected with a secondary instrument safety barrier. The output end of the secondary instrument safety barrier is connected with three liquid level displaying modules. The output end of the secondary instrument safety barrier is connected with the constant current source circuit. The three-interface measuring instrument has the advantages that three interface layers of a gas-oil interface, an oil-water interface and a water-sand interface can be detected in real time; service life is long; connecting wires are reduced, and reliability is improved; and safety and reliability are high, mounting and debugging are convenient, and maintaining workload is low.
Description
Technical field
The present invention relates to oil field gathering and transportation technology field, relate in particular to three interface-measuring devices in storage tank.
Background technology
Storage tank in oil field gathering and transportation technique is a very important equipment, and it has collected all oil well produced next (oil, rock gas, underground water and sand grains) materials in individual oil field or oil producing region.If detect and just can find out whole production dynamic change value in real time, if obtain its quantitative value after in time detecting, just can grasp actual real output.
Because these four kinds of materials enter after oil tank, under Action of Gravity Field, rock gas, crude oil, local water, sand distribute from top to down, just form Liao Sige stratum and three interfaces, conventional detecting instrument or technology can't be accomplished real-time detection, it is reported that state-of-the-art isotope method can only detect pasta and the water surface simultaneously, also just helpless as for sand face, and measured deviation is 10-15 millimeter.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, a kind of interior three interface measuring instruments of storage tank that can detect in real time gas and oil, profit, water sand three bed interfaces are provided.
The object of the present invention is achieved like this: three interface measuring instruments in storage tank, comprise the upper fixing element and the lower fixture that are arranged in storage tank, between upper fixing element and lower fixture, by three hollow tubulars, be connected, difference connecting sensor in every hollow tubular, every hollow tubular arranges respectively magnetic float outward; Described sensor connects single-chip microcomputer and selects module, single-chip microcomputer selects the input end of module to connect constant-current source circuit, single-chip microcomputer selects the output terminal of module to connect amplifying circuit, the output terminal of amplifying circuit connects change-over circuit, the output terminal connecting secondary instrument safety grid of change-over circuit, the output terminal of secondary instrument safety barrier connects three liquid level display modules, and the output terminal of secondary instrument safety barrier is also connected with described constant-current source circuit.
Sensor of the present invention comprises the precision resistance that several are installed in series, and a magneto sensor is installed between two precision resistances and ground.
Principle of the present invention is: this detector adopts law of buoyancy and magnetic couplings effect and develops in conjunction with telemetering type magnetic float liquidlevel meter.In sensor every 5mm, a precision resistance is installed in series, a magneto sensor is installed between two resistance and ground, during interface lifting in tested container, with the magnetic float lifting outside dynamic sensor, permanent-magnet steel in float is delivered on the magneto sensor in pipe by magnetic coupling, and magneto sensor output converts conducting state to from cut-off state, and the output resistance of whole sensor is here: R
aB=R
1+ R
2.Rk=kR, the output resistance R of the height at interface and sensor
aBbe directly proportional, the feedback voltage being loaded on the precision resistance of electric current changes, thereby has realized the conversion of position, boundary and electric signal, reaches the object that interface is detected, then by computing unit, is obtained volume value and the mass value of four kinds of materials.
The present invention has the following advantages: 1, can detect in real time gas and oil, profit, water sand three bed interfaces, and obtain volume value and the mass value of four kinds of materials.
2, adopt magneto sensor to substitute traditional tongue tube, make it to extend serviceable life.
3, adopt resistance sensor to simplify inner structure, reduce wiring, reliability is improved.
4, also there is in addition without leaking, without fragile part the feature such as safe reliability is high, and Installation and Debugging are convenient, and maintenance is little.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is schematic diagram of the present invention.
Fig. 3 is the schematic diagram of sensor.
Embodiment
As Figure 1-3, in storage tank, three interface measuring instruments mainly comprise upper fixing element 2 and the lower fixture 3 being arranged in storage tank 1, between upper fixing element 2 and lower fixture 3, by three hollow tubulars 4, be connected, the every interior connecting sensor 5 respectively of hollow tubular 4, the every outer magnetic float 6 that arranges respectively of hollow tubular 4.Sensor 5 comprises the precision resistance 5-2 that several are installed in series, and a magneto sensor 5-1 is installed between two precision resistance 5-2 and ground.Sensor 5 connects single-chip microcomputer and selects module 7, single-chip microcomputer selects the input end of module 7 to connect constant-current source circuit 8, single-chip microcomputer selects the output terminal of module 7 to connect amplifying circuit 9, the output terminal of amplifying circuit 9 connects change-over circuit 10, the output terminal connecting secondary instrument safety grid 11 of change-over circuit 10, the output terminal of secondary instrument safety barrier 11 connects three liquid level display modules 12, and the output terminal of secondary instrument safety barrier 12 is also connected with constant-current source circuit 8.
Claims (2)
1. three interface measuring instruments in storage tank, it is characterized in that: comprise the upper fixing element and the lower fixture that are arranged in storage tank, between upper fixing element and lower fixture, by three hollow tubulars, be connected, connecting sensor respectively in every hollow tubular, every hollow tubular arranges respectively magnetic float outward; Described sensor connects single-chip microcomputer and selects module, single-chip microcomputer selects the input end of module to connect constant-current source circuit, single-chip microcomputer selects the output terminal of module to connect amplifying circuit, the output terminal of amplifying circuit connects change-over circuit, the output terminal connecting secondary instrument safety grid of change-over circuit, the output terminal of secondary instrument safety barrier connects three liquid level display modules, and the output terminal of secondary instrument safety barrier is also connected with described constant-current source circuit.
2. three interface measuring instruments in storage tank according to claim 1, is characterized in that: described sensor comprises the precision resistance that several are installed in series, and a magneto sensor is installed between two precision resistances and ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239391.2A CN103983327A (en) | 2014-06-03 | 2014-06-03 | Three-interface measuring instrument in oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239391.2A CN103983327A (en) | 2014-06-03 | 2014-06-03 | Three-interface measuring instrument in oil storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103983327A true CN103983327A (en) | 2014-08-13 |
Family
ID=51275387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410239391.2A Pending CN103983327A (en) | 2014-06-03 | 2014-06-03 | Three-interface measuring instrument in oil storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103983327A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554494A (en) * | 1984-09-21 | 1985-11-19 | Rochester Gauges, Inc. | Fluid level gauge having magnetic sensor |
| CN1138133A (en) * | 1995-06-13 | 1996-12-18 | 鞍山市立山高新技术研究所 | Magnetic controlled liquid level interface instrument |
| CN2656954Y (en) * | 2003-09-24 | 2004-11-17 | 高轶群 | Density liqid level temp. interface measurer for oil storage tank |
| CN2921834Y (en) * | 2005-09-19 | 2007-07-11 | 中国石化胜利油田有限公司河口采油厂 | Intelligent large tank oil-water testing device |
| CN102913231A (en) * | 2012-10-22 | 2013-02-06 | 陈强 | Magnetic induction liquid level interface instrument |
| CN203929176U (en) * | 2014-06-03 | 2014-11-05 | 陈东 | Three interface measuring instruments in storage tank |
-
2014
- 2014-06-03 CN CN201410239391.2A patent/CN103983327A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554494A (en) * | 1984-09-21 | 1985-11-19 | Rochester Gauges, Inc. | Fluid level gauge having magnetic sensor |
| CN1138133A (en) * | 1995-06-13 | 1996-12-18 | 鞍山市立山高新技术研究所 | Magnetic controlled liquid level interface instrument |
| CN2656954Y (en) * | 2003-09-24 | 2004-11-17 | 高轶群 | Density liqid level temp. interface measurer for oil storage tank |
| CN2921834Y (en) * | 2005-09-19 | 2007-07-11 | 中国石化胜利油田有限公司河口采油厂 | Intelligent large tank oil-water testing device |
| CN102913231A (en) * | 2012-10-22 | 2013-02-06 | 陈强 | Magnetic induction liquid level interface instrument |
| CN203929176U (en) * | 2014-06-03 | 2014-11-05 | 陈东 | Three interface measuring instruments in storage tank |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140813 |
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| WD01 | Invention patent application deemed withdrawn after publication |