CN203615989U - Oil-water interface measuring instrument - Google Patents
Oil-water interface measuring instrument Download PDFInfo
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- CN203615989U CN203615989U CN201320595353.1U CN201320595353U CN203615989U CN 203615989 U CN203615989 U CN 203615989U CN 201320595353 U CN201320595353 U CN 201320595353U CN 203615989 U CN203615989 U CN 203615989U
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- rapier
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- electromagnetism
- oil
- measuring instrument
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Abstract
The utility model provides an oil-water interface measuring instrument, which comprises an oil storage tank, a detection module and a control module. The detection module comprises a protective shell, a servo motor, a ball screw and an electromagnetic transmitter. One end of the ball screw is connected with the servo motor, and the other end of the ball screw is connected with the protective shell. The ball screw is provided with an electromagnetic probe array panel and the electromagnetic probe array panel is capable of moving vertically along the ball screw. An electromagnetic probe is arranged on the electromagnetic probe array panel. The electromagnetic probe array panel is connected with the electromagnetic transmitter used for providing electromagnetic signals to the electromagnetic probe. The control module is respectively and electrically connected with the servo motor and the electromagnetic transmitter. Based on the principle that, the larger the dielectric constant of a medium, the greater the attenuation of electromagnetic waves passing through the medium. The interface between a crude oil layer c, a water layer a and the like, can be measured according to the variation of electromagnetic signals transmitted and received by the electromagnetic probe at different heights. Meanwhile, the oil-water interface measuring instrument is accurate in measurement, novel in design and simple in structure.
Description
Technical field
The utility model relates to Petroleum Production technical field, particularly a kind of oil-water surface measuring instrument.
Background technology
During from underground collection crude oil, due to existing acquisition mode, the water content in crude oil of exploiting out is larger.Therefore in the time separating crude oil, the oil water mixture of crude oil and water must be sent into standing a period of time in gun barrel.Under gravity and buoyancy, the little water droplet in oil water mixture is deposited to the bottom of separating tank, forms water layer a; On oil droplet, float on the top layer of separating tank, form former oil reservoir c; In the middle of former oil reservoir c and water layer a, be oil mixing with water layer b.In crude production process, in order to facilitate the extraction of crude oil, between water layer a, oil mixing with water layer b, former oil reservoir c and air layer d, interfacial detection is vital.But due to the physical characteristics complexity of oil water mixture, the detection of water-oil interface is special, thus now at home still majority be to adopt original manual detection method, waste time and energy.
In the prior art, often also use electro-magnetic wave absorption type liquid level gauge to measure the liquid level of former oil reservoir etc.The height of liquid in containers medium is called liquid level by people, is called liquid level gauge for the instrument of measuring liquid level.The liquid level gauge that utilizes the ability of liquid medium electromagnetic wave absorption to detect liquid level is just called electro-magnetic wave absorption type liquid level gauge.The principle of work of electro-magnetic wave absorption type liquid level gauge is by the outside radiated electromagnetic wave of electromagnetic wave launcher, and electromagnetic wave, through medium, after the absorption and reflection of medium, receives echoed signal by receiving trap.Due to the ability difference of different medium electromagnetic wave absorption, the intensity of the echoed signal receiving by receiving trap is just different, and two more adjacent receiving traps receive echoed signal, just can judge the liquid level of medium.
The specific inductive capacity that experiment showed, medium is larger, larger through the electromagnetic wave attenuation of medium.The specific inductive capacity of crude oil and water differs greatly, and in the time measuring the liquid level of former oil reservoir, can utilize the difference being caused by specific inductive capacity to locate the liquid level of former oil reservoir.At normal temperatures, the relative dielectric constant of water is 80 left and right, and the relative dielectric constant of pure crude oil is 2.3 left and right, so medium difference, difference in dielectric constant is huge.
Referring to Fig. 2, in prior art, utilize electro-magnetic wave absorption type liquid level gauge to measure the principle of work of oil water mixture, oil-water surface measuring instrument is distributed electromagnetism rapier structure, liquid level gauge 11 in measuring instrument is made up of electromagnetic transducers 12, tygon four fluorine tube 13 and rapier 14, electromagnetic transducers 12 be positioned at the equally distributed rapier 14 of tygon four fluorine tube 13 and be electrically connected, electromagnetic transducers 12 will be by the outside radiated electromagnetic wave of rapier 14, the formation between rapier 14 and the tank skin of storage tank 1 many levels detect transversal section.Multiple rapiers 14 in measuring instrument carry out electromagnetic transmitting from top to bottom.Due to the residing dielectric layer difference in each transversal section, the electromagnetic decay intensity difference that rapier 14 is launched.The specific inductive capacity of medium is larger, larger through the electromagnetic wave attenuation of medium.In measuring instrument, the rapier 14 in water layer a, the electromagnetic decay intensity maximum of launching; In oil mixing with water layer, b takes second place, and takes second place in former oil reservoir c again, minimum in air.Rapier 14 constant orderly send transverse electromagnetic wave signal in, receiving trap receives the echoed signal after diectric attenuation, judges the residing height of each electrode and residing medium with echoed signal intensity.The height of adjacent two electrodes that differ greatly by echoed signal, judges the floor height of liquid medium.
But there is certain shortcoming in this oil-water surface measuring instrument.Owing to having certain setting space between two rapiers 14.Hour, between two electrodes, can produce undesired signal affects the accuracy of signal to spacing; When spacing is larger, can not the former oil reservoir c of Measurement accuracy and the interphase of other dielectric layers, reduce the efficiency of taking, also can cause in production mistiming, other media being taked as crude oil.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of oil-water surface measuring instrument, can detect accurately the position of gun barrel Central Plains oil reservoir, oil water mixture layer and water layer, there is accurate, novel in design, the simple in structure feature of measuring.
In order to achieve the above object, the technical scheme that the utility model is taked is:
A kind of oil-water surface measuring instrument, comprise storage tank 1, detection module 2, control module 3, described detection module 2 comprises the protecting sheathing 4 that vertically runs through storage tank 1 and the servomotor 5 that is arranged on protecting sheathing 4 tops, and described detection module 2 also comprises ball-screw 6 and is arranged on the electromagnetic transducers 7 on storage tank 1 top, outside; One end of described ball-screw 6 connects servomotor 5, the other end connects the bottom of protecting sheathing 4, electromagnetism rapier array board 8 is installed on described ball-screw 6, described electromagnetism rapier array board 8 can be on ball-screw 6 vertical motion, electromagnetism rapier array board 8 is provided with the electromagnetism rapier 9 for transmitting and receiving electromagnetic signal; Described electromagnetism rapier array board 8 with for provide the electromagnetic transducers 7 of electromagnetic signal to be connected to electromagnetism rapier 9; Described inspection control module 3 is electrically connected respectively at servomotor 5 and electromagnetic transducers 7.
Described detection module 2 also comprises that being arranged on protecting sheathing 4 inwalls is provided with scale 10, and the scale interval of scale 10 is h2.
The tygon four fluorine tube that described protecting sheathing 4 is hollow.
Described electromagnetism rapier 9 intervals are vertically distributed on electromagnetism rapier array board 8 uniformly, and spacing is h1.
The scale interval of described scale 10 is that h2 is less than electromagnetism rapier 9 interval h1.
Principle of work of the present utility model is:
The described oil-water surface measuring instrument of the utility model design, utilize the specific inductive capacity of medium larger, through the larger principle of electromagnetic wave attenuation of medium, transmitted and received the interphase of the former oil reservoir c of measure of the change and the water layer a etc. of electromagnetic signal at differing heights by electromagnetism rapier 9.
The beneficial effects of the utility model are:
The utility model design provides the oil-water surface measuring instrument that a kind of precision is high, accuracy is high, error is little, and the spacing h1 of electromagnetism rapier 9 is greater than the minor increment that does not produce interference, has reduced, by the error of disturbing generation, to have improved stability; The assay intervals h1 of electromagnetism rapier 9, much smaller than h2, has improved precision and the accuracy of oil-water surface measuring instrument.The utility model can detect the position of gun barrel Central Plains oil reservoir c, oil water mixture layer b and water layer a accurately, has accurate, novel in design, the simple in structure feature of measuring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the prior art described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, the utility model is a kind of oil-water surface measuring instrument, comprise storage tank 1, detection module 2, control module 3, described detection module 2 comprises the protecting sheathing 4 that vertically runs through storage tank 1 and the servomotor 5 that is arranged on protecting sheathing 4 tops, and described detection module 2 also comprises ball-screw 6 and is arranged on the electromagnetic transducers 7 on storage tank 1 top, outside; One end of described ball-screw 6 connects servomotor 5, the other end connects the bottom of protecting sheathing 4, electromagnetism rapier array board 8 is installed on described ball-screw 6, described electromagnetism rapier array board 8 can be on ball-screw 6 vertical motion, electromagnetism rapier array board 8 is provided with the electromagnetism rapier 9 for transmitting and receiving electromagnetic signal; Described electromagnetism rapier array board 8 with for provide the electromagnetic transducers 7 of electromagnetic signal to be connected to electromagnetism rapier 9; Described inspection control module 3 is electrically connected respectively at servomotor 5 and electromagnetic transducers 7.
Described detection module 2 also comprises that being arranged on protecting sheathing 4 inwalls is provided with scale 10, and the scale interval of scale 10 is h2.
The tygon four fluorine tube that described protecting sheathing 4 is hollow.
Described electromagnetism rapier 9 intervals are vertically distributed on electromagnetism rapier array board 8 uniformly, and spacing is h1.
The scale interval of described scale 10 is that h2 is less than electromagnetism rapier 9 interval h1.
When work, control module 3 is controlled electromagnetic transducers 7 and is provided electromagnetic signal to the electromagnetism rapier 9 being positioned on electromagnetism rapier array board 8, and electromagnetic signal is horizontally outward launched by electromagnetism rapier 9.Due to the height difference at each electromagnetism rapier 9 places, the residing dielectric layer of electromagnetism rapier 9 is entirely not identical yet.Larger according to the specific inductive capacity of medium, through the larger principle of electromagnetic wave attenuation of medium, the echoed signal of electromagnetic signal via different medium decay and after reflecting received by electromagnetism rapier 9, feeds back to control module 3, by control module 3 records through electromagnetic transducers 7.
Then control module 3 sends motor message to servomotor 5, and servomotor 5 drives ball-screw 6 carry out straight up or move downward, and makes to be arranged on electromagnetism rapier array board 8 on ball-screw 6 straight up or moves downward.The distance of each motion is the scale interval h2 of scale 10.When after motion h2 distance, servomotor 5 quits work.Control module 3 is again controlled electromagnetic transducers 7 and is provided electromagnetic signal to the electromagnetism rapier 9 being positioned on electromagnetism rapier array board 8, electromagnetic signal is horizontally outward launched by electromagnetism rapier 9, echoed signal is received by electromagnetism rapier 9 simultaneously, feed back to control module 3 through electromagnetic transducers 7, by control module 3 records.Repeatedly after motion, the echoed signal intensity that each electromagnetism rapier 9 is gathered is analyzed, the adjacent twice return change in signal strength of same electromagnetism rapier 9 is larger, proves, the interphase of two media is positioned at the intermediate altitude of electromagnetism rapier 9 adjacent twice test height.As enough hour of h2, the liquid level of measurement was more accurate.
Claims (5)
1. an oil-water surface measuring instrument, comprise storage tank (1), detection module (2), control module (3), it is characterized in that: described detection module (2) comprises the protecting sheathing (4) that vertically runs through storage tank (1) and be arranged on the servomotor (5) at protecting sheathing (4) top, described detection module (2) also comprises ball-screw (6) and is arranged on the electromagnetic transducers (7) on top, storage tank (1) outside; One end of described ball-screw (6) connects servomotor (5), the other end connects the bottom of protecting sheathing (4), electromagnetism rapier array board (8) is installed on described ball-screw (6), described electromagnetism rapier array board (8) can be at the upper vertical motion of ball-screw (6), and electromagnetism rapier array board (8) is provided with the electromagnetism rapier (9) for transmitting and receiving electromagnetic signal; Described electromagnetism rapier array board (8) with for provide the electromagnetic transducers (7) of electromagnetic signal to be connected to electromagnetism rapier (9); Described control module (3) is respectively at servomotor (5) and electromagnetic transducers (7) electrical connection.
2. a kind of oil-water surface measuring instrument according to claim 1, is characterized in that: described detection module (2) also comprises that being arranged on protecting sheathing (4) inwall is provided with scale (10), and the scale interval of scale (10) is h2.
3. a kind of oil-water surface measuring instrument according to claim 1, is characterized in that: the tygon four fluorine tube that described protecting sheathing (4) is hollow.
4. a kind of oil-water surface measuring instrument according to claim 1, is characterized in that: it is upper that described electromagnetism rapier (9) interval is vertically distributed in electromagnetism rapier array board (8) uniformly, and spacing is h1.
5. a kind of oil-water surface measuring instrument according to claim 2, is characterized in that: the scale interval of described scale (10) is that h2 is less than electromagnetism rapier (9) interval h1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320595353.1U CN203615989U (en) | 2013-09-25 | 2013-09-25 | Oil-water interface measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320595353.1U CN203615989U (en) | 2013-09-25 | 2013-09-25 | Oil-water interface measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN203615989U true CN203615989U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320595353.1U Expired - Fee Related CN203615989U (en) | 2013-09-25 | 2013-09-25 | Oil-water interface measuring instrument |
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| CN (1) | CN203615989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897240A (en) * | 2015-02-13 | 2015-09-09 | 西安电子科技大学 | An oil-water interface measuring method |
-
2013
- 2013-09-25 CN CN201320595353.1U patent/CN203615989U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897240A (en) * | 2015-02-13 | 2015-09-09 | 西安电子科技大学 | An oil-water interface measuring method |
| CN104897240B (en) * | 2015-02-13 | 2018-01-19 | 西安电子科技大学 | A kind of measuring method of oil-water interfaces |
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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: 20140528 Termination date: 20140925 |
|
| EXPY | Termination of patent right or utility model |