CN201000455Y - Interface sensor - Google Patents
Interface sensor Download PDFInfo
- Publication number
- CN201000455Y CN201000455Y CNU2006200098886U CN200620009888U CN201000455Y CN 201000455 Y CN201000455 Y CN 201000455Y CN U2006200098886 U CNU2006200098886 U CN U2006200098886U CN 200620009888 U CN200620009888 U CN 200620009888U CN 201000455 Y CN201000455 Y CN 201000455Y
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- CN
- China
- Prior art keywords
- circuit
- liquid level
- sensor
- interface
- utility
- 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.)
- Expired - Fee Related
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- 239000007788 liquid Substances 0.000 claims abstract description 34
- 230000006698 induction Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000005501 phase interface Effects 0.000 description 7
- 230000002463 transducing effect Effects 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Level Indicators Using A Float (AREA)
Abstract
The utility model relates to an interface sensor, which belongs to a sensor field. The utility model is provided with a connecting box, two connecting rods are fixed at the lower end of the connecting box, and a liquid level sensor and a float are arranged on each connecting rod, the liquid level sensor is connected with a resolution circuit through an electric wire, and the resolution circuit consists of a pulse generating circuit, a guide magnet sensing differential calculus slope change-over circuit, a micro magnetic conductance resolution circuit, a resolving ratio logic change-over circuit and a letch driving circuit, which are connected in series. The utility model is used for the detecting of the interface of the oil, water and gas, etc. in the raw water containing oil.
Description
Affiliated technical field
The utility model relates to a kind of heterogeneous fluid interface sensing device, says it is a kind of sensing device that interface such as the former water Oil, Water, Gas of oil-containing is detected that is used in detail.
Background technology
At present, liquid level sensor on the market such as condenser type, Hall-type, inductance type etc. are to be applied in the occasion that detects liquid level near switch or photoelectricity, excusing from death ripple remote surveying of liquid level switch etc. mostly, and be characterized in: simple in structure, sensing capabilities is reliable immediately.Its deficiency is: can not differentiate liquid interface of different nature, more can not satisfy environmental baseline requirements such as heatproof, withstand voltage, anti-riot, anticorrosion and leakproof simultaneously.
Summary of the invention
Can not differentiate liquid interface of different nature for overcoming existing sensor, more can not satisfy the deficiency that environmental baselines such as heatproof, withstand voltage, anti-riot, anticorrosion and leakproof require simultaneously, the utility model provides a kind of sensor that can differentiate liquid interface of different nature.
The technical scheme that its technical matters that solves the utility model adopts is: be provided with terminal box, the terminal box lower end is fixed with two connecting rods, be fixed with liquid level sensor and float on each connecting rod, liquid level sensor is connected with the explanation circuit through electric wire, and the explanation circuit is differentiated circuit, resolution logical transition circuit and latched driving circuit and be in series by pulse generating circuit, magnetic conduction induction differential slope change-over circuit, little magnetic conductance.
The beneficial effects of the utility model are, satisfy under the environmental baselines such as heatproof, withstand voltage, anti-riot, anticorrosion and leakproof, and sensing capabilities is reliable, can differentiate liquid interface of different nature.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the circuit theory diagrams of the utility model explanation device.
Fig. 2 is a structural representation of the present utility model.
1. pulse generating circuits among the figure, 2. magnetic conduction induction differential slope change-over circuit, 3. little magnetic conductance is differentiated circuit, and 4. resolution logical transition circuit 5. latchs driving circuit, 6. explanation device, 7. right connecting rod, 8. liquid level sensor, 9. float, 10. left connecting rod, 11. terminal boxes.
Embodiment
At Fig. 1, among Fig. 2, the utility model terminal box 11 lower ends are fixed with left connecting rod 10 and right connecting rod 7, be fixed with liquid level sensor 8 and float 9 on left side connecting rod 10 and the right connecting rod 7, liquid level sensor 8 is connected with explanation device 6 through electric wire, the circuit of explanation device 6 is by pulse generating circuit 1, magnetic conduction induction differential slope change-over circuit 2, little magnetic conductance is differentiated circuit 3, resolution logical transition circuit 4 and latch driving circuit 5 and be in series, pulse generating circuit 1, magnetic conduction induction differential slope change-over circuit 2, little magnetic conductance is differentiated circuit 3, resolution logical transition circuit 4 and to latch driving circuit 5 are the known public circuit structures of those of ordinary skills no longer repeats here.The magnetic conduction inductor is made up of a soft magnetism ring with certain interval breach and one group of field coil and inductive coil.Be fixed in the guide pipe and be arranged on by fixing support and can sense the liquid level place that liquid interface sets, and two groups of winding wires on the soft magnetism ring can enter guide pipe by fixing unified perforation place of support and guide pipe, are fixed in the connector place and draw by lead and receive the related circuit place.The soft magnetism ring of sensor, internal diameter are 22mm, and external diameter is 38mm, and its relative unit permeance is=2K that coil is sub-thread high-temperature anticorrosion erosion lead.
According to the base of magnetic circuit and the Hough second law ∑ H=∑ IW and the law of electromagnetic induction
Combined circuit sampling needs (as differential slope and be the explosion-proof needs of getting little current return sampling etc.) to establish field coil number of turn N
1==20 circles, number of inductive coil turns are N
2=35 circles,
The basic circuit of this sensor as shown in Figure 1,
As we know from the figure, it is (by R by pulse producer 1, magnetic conduction induction differential slope converter 2
1, C
1Coil constitutes, and little magnetic conductance resolving device 3 is (by C
2, RW
1, RW
2Formation) circuit such as resolution logic translator 4 and latch driver 5 are formed, principle of work is as follows, square-wave pulse by pulse producer output certain frequency, by differentiated pulse waveform of magnetic conduction induction differential slope converter output, be output as differentiated pulse waveform with the proportional increase of its differential slope through little magnetic conductance resolving device with obvious decay concussion.Since the amplitude of differentiated pulse waveform and lower limit thereof along slope will with the proportional variation of little magnetic property at the associated media interface of institute sensing.So " every straight " be added to DC level adjustable " C " of waveform by capacitor C 2 held (by potentiometer R according to principle of energy superposition
W2), with V
3Waveform by the resolution logic translator according to as shown in the figure waveform character, by slope the reference level value carry out " with " logic relatively will export the square-wave pulse waveform of proportional constant amplitude different in width, and with it square-wave pulse by sample pulsewidth waveform " with " relatively after, export sign " 1 " signal of this liquid interface, latch output " 1 " signal by corresponding memory working storage again, enable control with instruction driver such as oil extraction, exhaust etc.If when former liquid interface is substituted by the liquid level of other liquid interface, replaced the aqueous phase interface liquid level as oil phase, then oil phase interface transducing signal is latched by pairing memory working storage, sends signal removal aqueous phase interface sensing latch signal simultaneously.When reference signal occurring such as V
SCBe the air sensing pulse signal, then remove all other liquid interface sensing latch signals.
The utility model carries out the liquid level sampling in the profit purifying control system, enable with the control exhaust, after oil and water separation, can sample the thickness that liquid layer sets again, enable with the control oil extraction, enable requirement according to above, can be in jar this sensor of quadruplet be installed in the liquid level place that liquid interface sets.Be provided with three respectively according to above-mentioned basic circuit and overlap rate logical sensor circuit and pairing memory working storage (R-S trigger) respectively.
It moves as follows substantially: initial, if no liquid in jar, each overlap sensor senses to be gas signal, it is logical zero that it signal is made quadruplet sensor liquid phase signal, but " 0 " signal of liquid level decline sensor is that " 1 " quilt is remembered working storage and latched Q through " oppositely "
3During output " 1 ", then drive motorized valve and carry out exhaust, prescribe a time limit,, make the liquid level signal latch be reset to " 0 ", then stop exhaust by control circuit output " 1 " signal pulse in the logic when stoste rises on the sensor.If liquid level drops to and repeats exhaust in limited time again.
In the stoste uphill process, after inner profit purified treatment, oil reservoir from top to bottom accumulates.What water/oily interface sensor latched in the present embodiment is oily interface transducing signal.So when its bound sensor liquid level place of oil reservoir interface process, there is oil phase interface transducing signal to be latched output " 1 " signal priority by pairing memory working storage, do such logical process at this, when oily interface transducing signal is latched when being output as " 1 " by its lower limit, drive draining valve immediately and carry out oil extraction, oil reservoir successively decreases from the bottom to top, and stoste continues to rise, to substitute oil phase interface liquid level, oil phase interface transducing signal is a logical zero, prescribes a time limit when rising on water/oily interface sensor, then the oil phase interface transducing signal of the upper limit also is converted into " 0 " by " 1 ", the oil extraction memory latch is resetted, promptly become " 0 ", thereby stop oil extraction by " 1 ".
Claims (1)
1, a kind of interface sensor, be provided with terminal box, it is characterized in that: the terminal box lower end is fixed with two connecting rods, be fixed with liquid level sensor and float on each connecting rod, liquid level sensor is connected with the explanation circuit through electric wire, and the explanation circuit is differentiated circuit, resolution logical transition circuit and latched driving circuit and be in series by pulse generating circuit, magnetic conduction induction differential slope change-over circuit, little magnetic conductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200098886U CN201000455Y (en) | 2006-09-19 | 2006-09-19 | Interface sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200098886U CN201000455Y (en) | 2006-09-19 | 2006-09-19 | Interface sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000455Y true CN201000455Y (en) | 2008-01-02 |
Family
ID=39014859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200098886U Expired - Fee Related CN201000455Y (en) | 2006-09-19 | 2006-09-19 | Interface sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000455Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104662414A (en) * | 2012-09-28 | 2015-05-27 | 通用电气公司 | Sensor systems for measuring an interface level in a multi-phase fluid composition |
| US9538657B2 (en) | 2012-06-29 | 2017-01-03 | General Electric Company | Resonant sensor and an associated sensing method |
| US9638653B2 (en) | 2010-11-09 | 2017-05-02 | General Electricity Company | Highly selective chemical and biological sensors |
| US9746452B2 (en) | 2012-08-22 | 2017-08-29 | General Electric Company | Wireless system and method for measuring an operative condition of a machine |
| US10018613B2 (en) | 2006-11-16 | 2018-07-10 | General Electric Company | Sensing system and method for analyzing a fluid at an industrial site |
| US10598650B2 (en) | 2012-08-22 | 2020-03-24 | General Electric Company | System and method for measuring an operative condition of a machine |
| US10684268B2 (en) | 2012-09-28 | 2020-06-16 | Bl Technologies, Inc. | Sensor systems for measuring an interface level in a multi-phase fluid composition |
| US10746680B2 (en) | 2006-11-16 | 2020-08-18 | General Electric Company | Sensing system and method |
| US10914698B2 (en) | 2006-11-16 | 2021-02-09 | General Electric Company | Sensing method and system |
-
2006
- 2006-09-19 CN CNU2006200098886U patent/CN201000455Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10018613B2 (en) | 2006-11-16 | 2018-07-10 | General Electric Company | Sensing system and method for analyzing a fluid at an industrial site |
| US10746680B2 (en) | 2006-11-16 | 2020-08-18 | General Electric Company | Sensing system and method |
| US10914698B2 (en) | 2006-11-16 | 2021-02-09 | General Electric Company | Sensing method and system |
| US9638653B2 (en) | 2010-11-09 | 2017-05-02 | General Electricity Company | Highly selective chemical and biological sensors |
| US9538657B2 (en) | 2012-06-29 | 2017-01-03 | General Electric Company | Resonant sensor and an associated sensing method |
| US9746452B2 (en) | 2012-08-22 | 2017-08-29 | General Electric Company | Wireless system and method for measuring an operative condition of a machine |
| US10598650B2 (en) | 2012-08-22 | 2020-03-24 | General Electric Company | System and method for measuring an operative condition of a machine |
| CN104662414A (en) * | 2012-09-28 | 2015-05-27 | 通用电气公司 | Sensor systems for measuring an interface level in a multi-phase fluid composition |
| US9658178B2 (en) | 2012-09-28 | 2017-05-23 | General Electric Company | Sensor systems for measuring an interface level in a multi-phase fluid composition |
| US10684268B2 (en) | 2012-09-28 | 2020-06-16 | Bl Technologies, Inc. | Sensor systems for measuring an interface level in a multi-phase fluid composition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |