CN202453039U - Laser liquid-level measuring device - Google Patents
Laser liquid-level measuring device Download PDFInfo
- Publication number
- CN202453039U CN202453039U CN2011203904334U CN201120390433U CN202453039U CN 202453039 U CN202453039 U CN 202453039U CN 2011203904334 U CN2011203904334 U CN 2011203904334U CN 201120390433 U CN201120390433 U CN 201120390433U CN 202453039 U CN202453039 U CN 202453039U
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- liquid
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- liquid level
- level gauge
- float
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- 239000007788 liquid Substances 0.000 title claims abstract description 89
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims description 30
- 238000002955 isolation Methods 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 4
- 208000034699 Vitreous floaters Diseases 0.000 abstract 6
- 150000003839 salts Chemical class 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Level Indicators Using A Float (AREA)
Abstract
The utility model discloses a laser liquid-level measuring device, which is applicable to liquid level measurement of common containers, and is especially applicable to liquid level measurement of a large-volume liquid storage tank needing insulation and containing high-temperature and corrosive stored liquid. The laser liquid-level measuring device mainly comprises lasers, liquid-level meter guide pipes and floaters, wherein the lasers are erected at the upper part of the liquid storage tank. The liquid-level meter guide pipes are vertically arranged in the liquid storage tank and is positioned below the lasers; the floaters are arranged in the liquid-level meter guide pipes; and the upper surfaces of the floaters are stuck with reflective films. The laser liquid-level measuring device disclosed by the utility model has the advantages that by means of the laser ranging principle, the liquid-level measurement of the liquid storage tank at ten meters or tens of meters can be met; the laser, matched electronic components and the liquid-level meter guide pipes are arranged at certain distance, so that the instrument is guaranteed to be not influenced by high temperature of the liquid storage tank; and the inner walls of the floaters and the liquid-level meter guide pipes adopt multipoint contact, normal movement of the floaters in the vertical direction is guaranteed, and the condition that the floaters are inclined by influence of the liquid-level fluctuation and liquid tension so as to influence light reflection and further influence the working of liquid-level meters.
Description
Technical field
The utility model relates to a kind of liquid level emasuring device, particularly a kind of fluid reservoir liquid level emasuring device that utilizes laser distance measuring principle.
Background technology
Usually need monitor in real time in the industry the liquid level of fluid reservoir.Fluid reservoir has different designs according to the difference of storage working medium, storage purpose etc., and its corresponding liquid level emasuring device also will satisfy corresponding requirement.
For example the solar energy thermal-power-generating station can adopt fused salt as working medium, and the power station comprises a plurality of fused salt jars, and fused salt jar internal reservoir 300 ℃～600 ℃ fused salt, need measure in real time the liquid level in the fused salt jar at the power station duration of work.
At present, in the industry there be by the principle of work branch liquid level gauge commonly used: float level meter, linker liquid level gauge, radar wave liquid level gauge, ultrasonic level gage, gamma ray level meter and laser liquid level gauge etc.And, then need satisfy two special designing requirements for the level gauge that is applied in the fused salt jar: the one, temperature is high, usually will reach 600 ℃; The 2nd, range is big, usually is no less than 10m.Other industry and the similar fluid reservoir of fused salt jar condition, its measurement also need have above-mentioned requirements.Though float level meter can satisfy the high and big requirement of range of temperature of storage salt cellar liquid level gauge, precision is big inadequately; The linker liquid level gauge can not be incubated, and the fused salt that is exposed in jar outer linker liquid level gauge just begins to solidify in the time of 260 ℃, can stop up liquid level gauge, so inapplicable; Radar wave liquid level gauge and ultrasonic level gage all can not be well heat insulation, are prone to make the electronic component of liquid level gauge to burn out, and general serviceability temperature is not more than 200 ℃; Gamma ray level meter is safety inadequately.Liquid level gauge commonly used is gone up in industry at present all has its certain defective on the level gauge of above-mentioned fluid reservoir.
Summary of the invention
In order to remedy the deficiency of above-mentioned level gauging mode, can carry out level gauging to the fluid reservoir that storage has high temperature, a corrosive liquids, the utility model proposes a kind of novel laser liquid-level measurement mechanism.
The principle of laser liquid level gauge is laser ranging.Laser ranging is to utilize laser that the distance of target is accurately measured; When the work laser instrument, penetrate a branch of very thin laser to target; By photovalve receiving target laser light reflected bundle, timer is measured laser beam from being transmitted into the time of reception, calculates from the observation station range-to-go.Laser liquid level gauge can satisfy the temperature of storage salt cellar liquid level gauge high with the big requirement of range, and measuring accuracy height, general laser liquid level gauge made certain improvement after, just can be suitable for.
The purpose of the utility model is achieved in that a kind of laser liquid-level measurement mechanism, mainly is made up of laser instrument, liquid level gauge conduit, float.Laser holder is located at fluid reservoir top.The liquid level gauge conduit vertically is installed in the fluid reservoir, is positioned under the laser instrument.Fluid reservoir is stretched out on liquid level gauge conduit top, is provided with isolation window at liquid level gauge conduit top.Be erected between laser instrument and the isolation window on fluid reservoir top and be separated with distance.Float is positioned over the inside of liquid level gauge conduit, on the stack shell of float, is provided with the dome-type convexity.The upper surface of float posts reflective membrane.
The utility model relies on laser distance measuring principle, can satisfy the level gauging of the fluid reservoir of ten meters even tens of meters; Laser instrument and supporting electronic components thereof and liquid level gauge conduit have separated certain distance, guarantee that instrument can not receive the influence of fluid reservoir high temperature; The liquid level gauge float adopts multiple spot to contact with the liquid level gauge pipe inner wall, guarantees that the normal of float in the vertical direction moves, and avoids float to receive the influence of liquid fluctuating and liquid tension that the crooked work that influences the light reflection and then influence liquid level gauge takes place.
Description of drawings:
Fig. 1 is the overall schematic of embodiment
Fig. 2 is the outboard profile of float
Fig. 3 is the sectional view of float
Among the figure: 1-laser instrument, 2-fused salt jar, 3-liquid level gauge conduit, 4-float, 5-isolation window, 6-ventilating opening, 7-hemispherical projections, 8-reflective membrane.
Embodiment:
As shown in Figure 1, the utility model is a kind of laser liquid-level measurement mechanism that is installed on the fluid reservoir 2, on fluid reservoir 2, generally is provided with two at least.This laser liquid-level measurement mechanism mainly is made up of laser instrument 1, liquid level gauge conduit 3, float 4.Laser instrument 1 is erected at fluid reservoir 2 tops, and laser instrument 1 is connected with corresponding electron device, to accomplish the measurement of liquid level data.Liquid level gauge conduit 3 adopts corrosion resistant metal to process, and vertically is installed in the fluid reservoir 2, is positioned under the laser instrument 1.Liquid level gauge conduit 3 is a hollow circular-tube, keeps sealing on top, satisfied fluid reservoir and kept heat insulation needs, bottom opening, opening near at the bottom of 2 jars of the fluid reservoirs and with partition distance at the bottom of the jar.Liquid level gauge conduit 3 is provided with ventilating opening 6 near the tank deck position below fluid reservoir 2 tank decks, the interior and jar interior atmospheric pressure of balance pipe.Said ventilating opening 6 should be positioned at the height that the inner liquid level of fluid reservoir under normal circumstances can not surpass.Fluid reservoir 2 is stretched out on liquid level gauge conduit 3 tops, is provided with isolation window 5 at liquid level gauge conduit 3 tops.Isolation window 5 has both been kept liquid level gauge and outside thermal isolation by forming through the fixing high temperature resistant optical lens of flange, can let laser beam pass through again.Be erected between laser instrument 1 and the isolation window 5 on fluid reservoir 2 tops and be separated with distance, can not receive the influence of high temperature to guarantee instrument.Float 4 is positioned over the inside of liquid level gauge conduit 3, adopts corrosion resistant metal to process.Float 4 is a hollow cylinder cartridge type structure, and diameter of section is slightly less than the internal diameter of liquid level gauge conduit 3.Float 4 quality and volume are regulated according to the situation of fluid reservoir 2 inner stored materials, guarantee that float 4 just in time can swim on the liquid level.Like Fig. 2, shown in Figure 3, on the stack shell of float 4, there are two-layer up and down each 4 dome-type protruding 7, every layer of dome-type protruding 7 all divides on the stack shell that four direction is evenly distributed on float 4.Hemispherical projections 7 makes float 4 and liquid level gauge conduit 3 inwalls contact with the mode of point, and it is little rub, can guarantee that floating drum keeps vertically simultaneously liquid level gauge conduit 3 in, can be when working generation crooked, influence the reflection of laser beam.The upper surface of float 4 posts the reflective membrane 8 of corrosion-and high-temp-resistant, and laser can produce direct reflection on reflective membrane 8, measure liquid level with this.
The utility model is applicable to the level gauging of generic container, is specially adapted to big volume, needs heat-insulation and heat-preservation, and storage of liquids has the level gauging of high temperature, corrosive fluid reservoir.
Claims (6)
1. a laser liquid-level measurement mechanism is characterized in that: mainly be made up of laser instrument (1), liquid level gauge conduit (3), float (4); Laser instrument (1) is erected at fluid reservoir (2) top; Liquid level gauge conduit (3) vertically is installed in the fluid reservoir (2), is positioned under the laser instrument (1); Fluid reservoir (2) is stretched out on liquid level gauge conduit (3) top, is provided with isolation window (5) at liquid level gauge conduit (3) top; Be erected between laser instrument (1) and the isolation window (5) on fluid reservoir (2) top and be separated with distance; Float (4) is positioned over the inside of liquid level gauge conduit (3), on the stack shell of float (4), is provided with dome-type convexity (7); The upper surface of float (4) posts reflective membrane (8).
2. laser liquid-level measurement mechanism according to claim 1 is characterized in that: liquid level gauge conduit (3) is a hollow circular-tube, keeps sealing on top, bottom opening, opening near fluid reservoir (2) jar end and with partition distance at the bottom of the jar.
3. laser liquid-level measurement mechanism according to claim 1 and 2 is characterized in that: liquid level gauge conduit (3) is provided with ventilating opening (6) in fluid reservoir (2) tank deck below near the tank deck position, the interior and jar interior atmospheric pressure of balance pipe.
4. laser liquid-level measurement mechanism according to claim 1 is characterized in that isolation window (5) is by forming through the fixing high temperature resistant optical lens of flange.
5. laser liquid-level measurement mechanism according to claim 1 is characterized in that: float (4) is a hollow cylinder cartridge type structure, and diameter of section is slightly less than the internal diameter of liquid level gauge conduit (3).
6. laser liquid-level measurement mechanism according to claim 5 is characterized in that: two-layer up and down each 4 dome-type convexity (7) are arranged on the stack shell of float (4), and every layer of dome-type convexity (7) all divided on the stack shell that four direction is evenly distributed on float (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203904334U CN202453039U (en) | 2011-10-14 | 2011-10-14 | Laser liquid-level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203904334U CN202453039U (en) | 2011-10-14 | 2011-10-14 | Laser liquid-level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453039U true CN202453039U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203904334U Expired - Fee Related CN202453039U (en) | 2011-10-14 | 2011-10-14 | Laser liquid-level measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202453039U (en) |
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| CN103412043A (en) * | 2013-06-17 | 2013-11-27 | 天津博远达科技有限公司 | Device and method for measuring wireless receiving and sending ultrasonic brine baume degree, evaporation capacity and liquid level |
| CN103453966A (en) * | 2013-08-20 | 2013-12-18 | 北京蓝洁士科技发展有限公司 | Infrared distance measuring liquid level gauge and application thereof to non-water-washing toilet device |
| CN103592002A (en) * | 2013-10-14 | 2014-02-19 | 中交四航工程研究院有限公司 | Groundwater level testing device applicable to vacuum preloading foundation treatment technology and using method of groundwater level testing device |
| CN105547415A (en) * | 2015-12-15 | 2016-05-04 | 北京理工大学 | LNG liquid level measurement device |
| CN106092271A (en) * | 2016-08-05 | 2016-11-09 | 武汉静磁栅机电制造有限公司 | A kind of laser liquid-level measurement apparatus and method |
| CN106442261A (en) * | 2016-09-28 | 2017-02-22 | 山东大学 | A variable pressure head penetration test device and method based on laser measurement system |
| CN106643983A (en) * | 2016-12-13 | 2017-05-10 | 浙江海洋大学 | A kind of LNG liquid level detection mechanism |
| CN103759791B (en) * | 2013-12-31 | 2017-06-16 | 中国计量学院 | Portable multi-function liquid level emasuring device and measuring method based on laser and pressure |
| CN107478306A (en) * | 2017-10-10 | 2017-12-15 | 中国计量大学 | A kind of storage tank liquid-level meter field calibration device |
| CN107677305A (en) * | 2016-08-02 | 2018-02-09 | 何守印 | The online real-time network monitor of Urban Storm Flood |
| CN107884038A (en) * | 2017-12-28 | 2018-04-06 | 湖北启宏热工设备有限公司 | A kind of liquid level detection device |
| CN110081951A (en) * | 2019-04-16 | 2019-08-02 | 江苏大学 | A kind of supersonic range finder |
| CN110243440A (en) * | 2019-07-10 | 2019-09-17 | 山东职业学院 | A kind of oil rule |
| CN112368552A (en) * | 2018-11-30 | 2021-02-12 | 开利公司 | Magnetic trapping suppression tank level sensor |
| CN112595386A (en) * | 2020-12-17 | 2021-04-02 | 深圳市地质环境研究院有限公司 | Method for automatically monitoring underground water level of foundation pit by utilizing laser reflection |
| CN113574310A (en) * | 2019-03-11 | 2021-10-29 | 乔治洛德方法研究和开发液化空气有限公司 | Liquefied gas storage tank |
| CN114300303A (en) * | 2021-12-27 | 2022-04-08 | 武汉航空仪表有限责任公司 | Device mainly comprising fine-adjustable reed switch in liquid level switch |
| CN114577309A (en) * | 2021-12-31 | 2022-06-03 | 中核二七二铀业有限责任公司 | Liquid level measuring device and method for 10kA medium-temperature electrolytic fluorine preparation tank |
| EP4124838A1 (en) * | 2021-07-28 | 2023-02-01 | Hanla IMS Co. Ltd. | Fluid level measurement system using buoyant body |
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2011
- 2011-10-14 CN CN2011203904334U patent/CN202453039U/en not_active Expired - Fee Related
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| CN103412043B (en) * | 2013-06-17 | 2015-06-24 | 天津博远达科技有限公司 | Device and method for measuring wireless receiving and sending ultrasonic brine baume degree, evaporation capacity and liquid level |
| CN103412043A (en) * | 2013-06-17 | 2013-11-27 | 天津博远达科技有限公司 | Device and method for measuring wireless receiving and sending ultrasonic brine baume degree, evaporation capacity and liquid level |
| CN103453966B (en) * | 2013-08-20 | 2016-07-06 | 北京蓝洁士科技发展有限公司 | A kind of non-water flushing device of toilet with infrared distance measurement fluid level measuring instrument |
| CN103453966A (en) * | 2013-08-20 | 2013-12-18 | 北京蓝洁士科技发展有限公司 | Infrared distance measuring liquid level gauge and application thereof to non-water-washing toilet device |
| CN103592002A (en) * | 2013-10-14 | 2014-02-19 | 中交四航工程研究院有限公司 | Groundwater level testing device applicable to vacuum preloading foundation treatment technology and using method of groundwater level testing device |
| CN103759791B (en) * | 2013-12-31 | 2017-06-16 | 中国计量学院 | Portable multi-function liquid level emasuring device and measuring method based on laser and pressure |
| CN105547415A (en) * | 2015-12-15 | 2016-05-04 | 北京理工大学 | LNG liquid level measurement device |
| CN107677305A (en) * | 2016-08-02 | 2018-02-09 | 何守印 | The online real-time network monitor of Urban Storm Flood |
| CN106092271A (en) * | 2016-08-05 | 2016-11-09 | 武汉静磁栅机电制造有限公司 | A kind of laser liquid-level measurement apparatus and method |
| CN106442261A (en) * | 2016-09-28 | 2017-02-22 | 山东大学 | A variable pressure head penetration test device and method based on laser measurement system |
| CN106643983A (en) * | 2016-12-13 | 2017-05-10 | 浙江海洋大学 | A kind of LNG liquid level detection mechanism |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20131014 |