CN1252520A - Tracking material level meter - Google Patents
Tracking material level meter Download PDFInfo
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- CN1252520A CN1252520A CN 98120685 CN98120685A CN1252520A CN 1252520 A CN1252520 A CN 1252520A CN 98120685 CN98120685 CN 98120685 CN 98120685 A CN98120685 A CN 98120685A CN 1252520 A CN1252520 A CN 1252520A
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Abstract
The material-level meter consists of motor movement controller, reversible movement motor, emitting source, upper and lower detectors, synchronous drive mechanism, etc. Based on the signals detected by the detectors and through logical analysis, the motor is controlled to rotate in either forward or reverse direction or to stop, and the mitting source and the detectors are driven to ascent or descend vertically and finally stop at the material level so as to measure the material level. A pulse generator may be used to generate pulse for remote transmission. The material-level meter performs no-contact measurement of both solid and liquid materials, and is also suitable for the high temperature and high pressure fields.
Description
The utility model relates to a class level meter.Particularly relate to a class detector and material is contactless and can be from the level meter of position, motion tracking thing position.
Level meter is used for measuring the liquid level of liquid and the material level of solid, is referred to as liquid level gauge and level-sensing device usually respectively.Float type level gauge is most widely used, and float is with the liquid level lifting, but energy measurement paint, crude oil, pitch and so on thick liquid not.Static pressure method, differential pressure method are not good to this type of liquid measure effect yet, in case cling, instrument lost efficacy.Traditional photo-electric level meter can only non-continuous, only provides two thing bit positions up and down usually, so as control pump, equipment such as valve.Ultrasonic level meter and material are contactless, but powerless to the material of sound absorption material or surface irregularity, for example: grain, flour, coal cinder, coal dust etc.What the ray type level meter was at present practical also only is to provide thing position up and down, and tiltedly saturating formula ray level meter in theory can continuous coverage, but because of error is big, thereby limited range of application.
The purpose of this utility model is to provide a class to go for different material to comprise High Temperature High Pressure even poisonous material, and contactless with material, detector can be from the novel level meter of motion tracking thing position.
The purpose of this utility model is achieved in that referring to accompanying drawing 1 and 7.Form the elevating mechanism that links by reversible electric machine (1), motor steering controller (20), cable drum (5) and (6), cable (7) and (8) or sprocket wheel (25), chain (26) etc., drive emissive source (9) and contiguous up and down two detectors (10) and (11), be in respectively on the different vertical lines, synchronization lifting, and remain on the same level.According to physical principle, any ray or ripple all can be decayed through medium, and meet I=I
oE
-kl, in the formula: I
oBe initial strength, k is an attenuation coefficient, and l is the distance that ray passed through, because the attenuation coefficient difference of air and material is very big, so, when two detectors just in time divide other places and material interface upper and lower, last detector (10) records strong signal, and following detector (11) records weak signal.If two detectors all are in top, thing position, then two detectors are strong signal; If two detectors all are in below, thing position, then two detectors are weak signal.Logical circuit in the signal input motor steering controller that detector is recorded just can end in the drive motor forward, reverse or stop, through linkage, drives emissive source and detector and rises synchronously or decline, and finally be still in thing position level.Simultaneously, the mechanical direct-reading counter and the pulsed electron counter that link with cable drum or chain just can demonstrate the thing position, and can be by long-range transmission and computer networking.In this device, emissive source can be the light source, ultrasonic generator, laser tube, X-ray tube, radioactive ray source of different wavelength etc.Detector is the sensor suitable with emissive source; For example photoresistance, photodiode, photoelectronic coupler, ultrasonic detector, laser detector, x-ray detector, photomultiplier, gamma counter, sodium iodide crystal etc.
The utility model can be measured the thing position of the various materials of solid, liquid continuously, also is applicable to the occasion of high temperature, high pressure, poisonous and severe corrosive, and precision is higher, and can be by impulse meter with the long-range transmission of the signal that records, with computer networking.
The concrete structure of utility model is provided by following embodiment and accompanying drawing, and further describes.
Accompanying drawing 1 is the total synoptic diagram of the structure of embodiment 1.
Accompanying drawing 2 is shape tube and the structural representation that hangs hammer.
Accompanying drawing 3 is structural representations of pulse producer.
Accompanying drawing 4 is circuit block diagrams of motor steering controller.
Accompanying drawing 5 is circuit block diagrams of step-by-step counting metering.
Accompanying drawing 6 is synoptic diagram of embodiment 2.
Accompanying drawing 7 is that the mechanical linkage axle of embodiment 5 is surveyed synoptic diagram.
Embodiment 1 is that a kind of suspension type is followed the tracks of level meter, referring to Fig. 1.Among this embodiment, whole device is by reversible electric machine (1), motor pulley (2), belt (3), engaged wheel (4), cable drum (5) and (6), cable (7) and (8), emissive source (9), detector (10) and (11), roller (12), suspension are hammered (13) and (30), standpipe (14) and (15), radome (16), flange (17), mechanical counter (18), brush (19), motor steering controller (20), pulse producer (21), impulse meter (22) into shape and formed up and down.Cable and suspension hammer are contained in respectively among two standpipes (14) and (15) of lower end sealing.Two the cable drum is synchronous, speed is rotated together, and external diameter equates.Emissive source (9) is installed in and hangs in the hammer (13), and detector (10) and (11) are installed on and hang in the hammer (30), and direction is relative each other.Standpipe adopts glass tube, plastic tube or metal tube.The motor steering controller is made up of electronic devices and components, be transported to motor with recording the brush of signal through cable drum side, through amplification, shaping, comparison and logical process, the forward, reverse or stop that just can realize motor end, finally make the suspension hammer static, make detector be stable at the top of thing position, following detector is stable at the below of thing position, thus realize to the thing position from motion tracking.Referring to Fig. 4.Meanwhile, the mechanical counter that links with the cable drum just shows the thing position, and pulse producer sends electric pulse, referring to Fig. 5.Impulse meter takes reading, and with shaping pulse, the long-range central control room that sends to is networked with principal computer.When all not having material in the container, hang hammer and can continue to descend, cause misoperation, therefore be with radome in the bottom of standpipe (15),, allow and hang the minimum place, upper edge that is parked in radome of hammer when light or ray with resistance, no longer fall.In order to guarantee that emissive source is relative with detector direction, hang hammer and do not turn to, special pipe has been adopted in standpipe (14) and (15), generally adopts the regular polygon cross section.Shown in Figure 2 is the xsect of positive four limit type standpipes, and on the suspension hammer four rolling has been installed.Shown in Figure 3 is the structural drawing of pulse producer.The centre is the shadow shield (23) of a gear type, and it is light source (22) that a left side is surveyed, and the right side is light sensor (24).Light source can adopt light emitting diode or bulb, and sensor can adopt photoresistance, photodiode, photoelectronic coupler etc.Certainly, pulse producer also can make up with magnetic shielding, magnet, Hall element.This device is used for measuring the liquid level of liquid, and error is no more than 2 centimetres, is used for measuring the material level of solid, and error is also less.
The gear train of embodiment 2 can be referring to Fig. 6, it is characterized in that, link gear is made up of cable drum (5) and (6), cable (7) and (8), suspension hammer (13) and (30) etc., cable (7) and the suspension hammer (13) that emissive source (9) is housed are loaded among the airtight standpipe in lower end (14), cable (8) and suspension hammer (30) are positioned at the outside of container, two the cable drum is synchronous, speed is rotated together, and external diameter equates.Emissive source is selected radioactive isotope for use, and detector is selected gamma ray detector for use.As on chamber wall, engraving scale, just can directly read the thing bit data.The standpipe lower end is airtight, adopts glass tube, plastic tube or metal tube.
The gear train of embodiment 3 and embodiment 2 are similar, and what they were different is the outside that cable (7) and the suspension that emissive source (9) is housed hammer (13) are positioned at container, and cable (8) and suspension hammer (30) then are loaded among the airtight standpipe in lower end (15).
The gear train of embodiment 4 and embodiment 2 are similar, and what they were different is without standpipe, and cable (7) and the suspension hammer (13) that emissive source (9) is housed are positioned at a side of container, cable (8) and hang and hammer the opposite side that (30) then are loaded on container into shape.
Claims (10)
1. tracking material level meter of forming by reversible electric machine (1), interlock elevating mechanism, mechanical counter (18), brush (19), pulse producer (21), impulse meter (22) etc., it is characterized in that, having an emissive source (9) is in respectively on two different vertical lines with (11), emissive source and detector with two adjoining detectors (10) up and down, also have one and make emissive source and detector, can be along the vertical line direction, keep sustained height, the link gear of synchronization lifting.
2. one kind by reversible electric machine (1), the interlock elevating mechanism, mechanical counter (18), brush (19), pulse producer (21), the tracking material level meter that impulse meter (22) etc. are formed, it is characterized in that, having one is made up of electronic component, the signal measured according to detector, carry out logical process, thereby the motor steering controller (20) of control motor operation, it has following control function: when two detectors are strong signal, motor just changes, when two detectors were weak signal, the motor counter-rotating only recorded strong signal at last detector (10), following detector (11) is when recording weak signal, and motor stops.
3. according to the device of claim 1 and 2 defineds, it is characterized in that described emissive source (9) can be light source, ultrasonic generator, laser tube, X-ray tube, radioactive ray source of different wave length etc., detector is the sensor suitable with emissive source.
4. according to the device of claim 1,2 and 3 defineds, it is characterized in that, link gear is made up of motor pulley (2), belt (3), engaged wheel (4), cable drum (5) and (6), cable (7) and (8), suspension hammer (13) and (30),, two cable drums synchronously, rotate with speed, external diameter equates, hanging hammer hangs over outside standpipe (14), (15) or the material container, hang in the hammer (13) emissive source (9) is housed, hang in the hammer (14) detector (10) and (11) are housed, standpipe (15) lower end that detector is installed is covered with radome (16).
5. according to the device of claim 1,2,3 and 4 defineds, it is characterized in that, described standpipe (14) and (15) have the regular polygon cross section, on the described suspension hammer (13) and (30) roller (12) that adapts with the regular polygon drift angle is installed, the standpipe lower end is airtight, and material is glass, plastics or metal.
6. according to the embodiment 1 of claim 1,2,3,4 and 5 defineds, it is characterized in that two standpipes (14) and (15) hang hammer (13) and (30) and are installed among the standpipe all at internal tank.
7. according to the embodiment 2 of claim 1,2,3,4 and 5 defineds, it is characterized in that standpipe (14) hangs hammer (13) and is installed among the standpipe (14) at internal tank, hangs hammer (30) and is installed in outside the container.
8. according to the embodiment 3 of claim 1,2,3,4 and 5 defineds, it is characterized in that, hang hammer (13) outside container, hang hammer (30) among standpipe (15), standpipe is installed within the material container.
9. according to the embodiment 4 of claim 1,2,3,4 and 5 defineds, it is characterized in that, do not adopt standpipe, hang hammer (13) and (30) all outside container, a side at container, another is at the opposite side of container.
10. according to the embodiment 5 of claim 1,2 and 3 defineds, it is characterized in that, link gear is made up of sprocket wheel (25), chain (26), source capsule (27), box detector (28), source capsule and box detector are by chain traction, vertical movement, sprocket diameter equates that the standpipe lower end is airtight, material is glass, plastics or metal, is covered with radome (16) in standpipe (15) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98120685 CN1252520A (en) | 1998-10-23 | 1998-10-23 | Tracking material level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98120685 CN1252520A (en) | 1998-10-23 | 1998-10-23 | Tracking material level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1252520A true CN1252520A (en) | 2000-05-10 |
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ID=5226847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98120685 Pending CN1252520A (en) | 1998-10-23 | 1998-10-23 | Tracking material level meter |
Country Status (1)
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|---|---|
| CN (1) | CN1252520A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009094839A1 (en) * | 2008-01-11 | 2009-08-06 | Nuctech Company Limited | Ray detecting divice for a human body safety check |
| CN102226707A (en) * | 2011-03-30 | 2011-10-26 | 唐山钢铁集团微尔自动化有限公司 | Material level measuring device of material bin |
| CN102798440A (en) * | 2012-08-14 | 2012-11-28 | 黑龙江省中贝技术有限公司 | Continuous kernel level monitoring method and device for realizing same |
| CN103134737A (en) * | 2012-11-08 | 2013-06-05 | 中国科学院寒区旱区环境与工程研究所 | Measuring method and device of glacier and ice and snow density |
| CN103713330A (en) * | 2008-01-11 | 2014-04-09 | 同方威视技术股份有限公司 | Radiation checking device used for human body safety check |
| CN104359523A (en) * | 2014-12-08 | 2015-02-18 | 黑龙江省中贝技术有限公司 | Long-range continuous radio-frequency admittance material level control device |
| CN105486379A (en) * | 2015-12-30 | 2016-04-13 | 黑龙江省科学院技术物理研究所 | Method for measuring material level through reflecting and scattering of adjustable high energy X-ray |
| CN111517388A (en) * | 2020-05-11 | 2020-08-11 | 珠海九通水务股份有限公司 | Material level control system, control method and water treatment tank |
-
1998
- 1998-10-23 CN CN 98120685 patent/CN1252520A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009094839A1 (en) * | 2008-01-11 | 2009-08-06 | Nuctech Company Limited | Ray detecting divice for a human body safety check |
| CN103713330A (en) * | 2008-01-11 | 2014-04-09 | 同方威视技术股份有限公司 | Radiation checking device used for human body safety check |
| CN102226707A (en) * | 2011-03-30 | 2011-10-26 | 唐山钢铁集团微尔自动化有限公司 | Material level measuring device of material bin |
| CN102226707B (en) * | 2011-03-30 | 2013-03-27 | 唐山钢铁集团微尔自动化有限公司 | Material level measuring device of material bin |
| CN102798440A (en) * | 2012-08-14 | 2012-11-28 | 黑龙江省中贝技术有限公司 | Continuous kernel level monitoring method and device for realizing same |
| CN103134737A (en) * | 2012-11-08 | 2013-06-05 | 中国科学院寒区旱区环境与工程研究所 | Measuring method and device of glacier and ice and snow density |
| CN103134737B (en) * | 2012-11-08 | 2015-10-28 | 中国科学院寒区旱区环境与工程研究所 | The measuring method of glacier ice snow density and device |
| CN104359523A (en) * | 2014-12-08 | 2015-02-18 | 黑龙江省中贝技术有限公司 | Long-range continuous radio-frequency admittance material level control device |
| CN105486379A (en) * | 2015-12-30 | 2016-04-13 | 黑龙江省科学院技术物理研究所 | Method for measuring material level through reflecting and scattering of adjustable high energy X-ray |
| CN111517388A (en) * | 2020-05-11 | 2020-08-11 | 珠海九通水务股份有限公司 | Material level control system, control method and water treatment tank |
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