CN204649272U - A kind of tank level indicating device - Google Patents
A kind of tank level indicating device Download PDFInfo
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- CN204649272U CN204649272U CN201520246125.2U CN201520246125U CN204649272U CN 204649272 U CN204649272 U CN 204649272U CN 201520246125 U CN201520246125 U CN 201520246125U CN 204649272 U CN204649272 U CN 204649272U
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- optical wand
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- fixed pulley
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- 230000005693 optoelectronics Effects 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 8
- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
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- 238000001514 detection method Methods 0.000 abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 24
- 239000010964 304L stainless steel Substances 0.000 description 15
- 238000005286 illumination Methods 0.000 description 14
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000007246 mechanism Effects 0.000 description 2
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Level Indicators Using A Float (AREA)
Abstract
The utility model relates to a kind of tank level indicating device, belongs to liquids position detection field.The utility model tightrope A connects float and balance weight body, and mid-span is on front fixed pulley and rear fixed pulley; The intermediate hanging of tightrope B is on commutation fixed pulley, and two ends connect balance weight body and instruction optical wand respectively; Instruction optical wand moves up and down along scale, and the middle part of instruction optical wand is set with a metal tube, and to increase the weight of instruction optical wand, tightrope B is connected on metal tube; Instruction optical wand power supply is controlled by optoelectronic switch and is powered by flexible circuit conductor; The light-emitting component of instruction optical wand is light emitting diode; By the effect of fixed pulley of commutating, keep instruction optical wand and storage tank liquid level in the same way, be synchronized with the movement, the position height of instruction optical wand is consistent with storing up innage all the time.The utility model had both been applicable to the level sensing of conventional liq, was also applicable to the detection of strongly corrosion liquid; Both be applicable to the level sensing of non-pressure vessel, be also applicable to the level sensing of the higher container of pressure.
Description
Technical field
The utility model relates to a kind of tank level indicating device, belongs to liquids position detection field.
Background technology
It is the detection technique that industrial process is conventional that the thing position of storage pot liquid indicates on the spot, existing liquids position measuring instrument and detection method of a great variety, have his own strong points, adopt different technical methods to solve the test problems of liquid level, but the part that also comes with some shortcomings.
The Level measurement instrument such as radar levelmeter, ultrasonic material level meter, laser level meter can directly be installed on storage tank measures liquids position, but inapplicable with strongly corrosion liquid, high pressure, high temperature, have mist, easily the occasion such as to condense, the thing bit data of display is not suitable for distant surveillance, and price also costly.Pressure unit and differential pressure transmitter can measure the thing position of liquid simply, but require that fluid density is constant.
Float-type liquids level detecting apparatus is the level sensing means that current commercial production is commonly used.Experienced the thing position of liquid by float, by interlinked mechanism, liquid level is passed to tank body outside, thus the thing position of the pot liquid of instruction storage intuitively.But from current known such pick-up unit and detection method, also come with some shortcomings, be mainly manifested in: 1, indicate liquid level direction and the actual thing position of liquid to change in the opposite direction, need manually to carry out calculating and could obtain actual liquid height; 2, not light instruction, needs peripheral hardware illuminating lamp night, observes very inconvenient; 3, scale mark and numeral are not too clear, are not easy to distant surveillance.
Patent CN101706308A discloses a kind of scheme: device comprises float, rule and noctilucence wheel, by float and interlinked mechanism, in tank body outside instruction liquid level, can be applicable to night observation.The method advantage be structure simple, indicate eye-catching, solve the liquid level indication problem on the spot of storage tank to a certain extent, but also come with some shortcomings, mainly just present: 1, rule indicates the direction of liquid level and actual liquid level to change in the opposite direction, need artificial calculating could obtain actual thing position; 2, obtain resistance value by guide rail, there is contact resistance variation large, poor reliability, is not suitable for humidity, many dust, mordant occasion; 3, powered to noctilucence wheel by guide rail, easily there is loose contact or sparkle, the occasion with requirement of explosion proof can not be used for.
, as described in ZL200820107045, ZL94206404.6, ZL94235895.3, ZL99220056.3, CN86101109B, also there is following problem to some extent: 1, complex structure, poor reliability in other float type liquid level pick-up unit or detection method; 2, on-the-spot instruction is unclear, and range estimation difficulty, especially when night and insufficient light.
Summary of the invention
In order to overcome complex structure that existing level sensing exists, precision is low, cost is high, bad adaptability, instruction are directly perceived, be not easy to the deficiencies such as round-the-clock field observation, the utility model proposes the technology that a kind of tank level indicating device indicates on the spot to the liquids position in tank body, the position height of instruction optical wand is consistent with the liquid level in storage tank, be convenient to round-the-clock observation, during power-off, also can not affect liquid level instruction.
The technical solution of the utility model is: a kind of tank level indicating device, is made up of float 1, tightrope A2, front fixed pulley 3, rear fixed pulley 4, balance weight body 5, commutation fixed pulley 6, tightrope B7, scale 8, instruction optical wand 9, flexible circuit conductor 10, optoelectronic switch 11;
Tightrope A2 connects float 1 and balance weight body 5, and mid-span is on front fixed pulley 3 and rear fixed pulley 4;
The intermediate hanging of tightrope B7 is on commutation fixed pulley 6, and two ends connect balance weight body 5 and instruction optical wand 9 respectively;
Instruction optical wand 9 moves up and down along scale 8, and the middle part of instruction optical wand 9 is set with a metal tube, and to increase the weight of instruction optical wand 9, tightrope B7 is connected on metal tube, and instruction optical wand 9 can indicate the liquid level of liquid in container accurately and visually;
Instruction optical wand 9 power supply is controlled by optoelectronic switch 11 and is powered by flexible circuit conductor 10, and flexible circuit conductor 10 bottom is round, can be elevated and flexible with instruction optical wand 9;
The light-emitting component of instruction optical wand 9 is light emitting diode;
By the effect of fixed pulley 6 of commutating, keep instruction optical wand 9 and storage tank liquid level in the same way, be synchronized with the movement, the position height of instruction optical wand 9 is consistent with storage innage all the time, also can not affect liquid level and indicate during power-off.
Described scale 8 background color is white, and the scale mark on scale 8 and numeral adopt fluorescent powder coating, make the scale mark on scale 8 and numeral more clear.
Principle of work of the present utility model is:
The motion of this device is triggered by the changes in liquid level in storage tank, and produces primarily of float 1 and balance weight body 5 synergy.When the liquid level of storage tank rises, whole drive line moves by the draw of balance weight body 5; When liquid level declines, whole drive line moves by the draw of float.Because balance weight body 5 connects float 1 and instruction optical wand 9 simultaneously, by the effect of the fixed pulley 6 that commutates, make float 1 identical with instruction optical wand 9 sense of displacement, and equal and opposite in direction, thus ensure that float 1 is consistent with the position height of instruction optical wand 9.
Instruction optical wand 9 light-emitting component be the light emitting diode that energy consumption is extremely low, can night or illumination more weak time illuminate scale.Power acquisition optoelectronic switch 11, can close power supply automatically when illumination is not enough.
By the effect of the fixed pulley that commutates, keeping the position height of instruction optical wand consistent with liquid level all the time, the liquid level of liquid in tank body can be acquired without the need to manually climbing up tank body, during power-off, also can not affect liquid level instruction.
Float 1 is flat right cylinder, and float weight is about 4 ~ 6 times of instruction optical wand 9 weight, and the weight of balance weight body 5 is about 2 ~ 4 times of instruction optical wand 9 weight, and instruction optical wand 9 weight range is 0.5 ~ 1.5kg, additional weight during instruction optical wand 9 shortage in weight.
In order to ensure can to debug the utility model in process of production, the method for employing is: float 1 and instruction optical wand 9 are pulled to peak simultaneously, balance weight body 5 are placed on minimum point, are then firmly connected in balance weight body 5 by tightrope A2 and tightrope B7.
The beneficial effects of the utility model are:
1, by the transformation of commutation fixed pulley, change the situation that instruction change direction common at present and liquid level change in the opposite direction, make optical wand indicating positions identical with storage tank liquid level position, indicate more directly perceived, the liquid level of liquid in tank body can be acquired without the need to manually climbing up tank body, during power-off, also can not affect liquid level instruction.
2, indicate optical wand both to indicate the true altitude of liquid levels in tank body, also doublely do night light source and the dynamic balance parts as gearing, adopt light emitting diode as light-emitting component, good energy-conserving effect, reliability are high.
3, the utility model had both been applicable to the level sensing of conventional liq, was also applicable to the detection of strongly corrosion liquid; Both be applicable to the level sensing of non-pressure vessel, be also applicable to the level sensing of the higher container of pressure.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present utility model;
Fig. 2 is the circuit diagram that instruction optical wand of the present utility model is connected with optoelectronic switch;
Each label in figure: 1-float, 2-tightrope A, fixed pulley before 3-, fixed pulley after 4-, 5-balance weight body, 6-commutates fixed pulley, and 7-tightrope B, 8-scale, 9-indicates optical wand, 10-flexible circuit conductor, 11-optoelectronic switch.
Embodiment
Embodiment 1: as shown in Figure 1-2, a kind of tank level indicating device, is made up of float 1, tightrope A2, front fixed pulley 3, rear fixed pulley 4, balance weight body 5, commutation fixed pulley 6, tightrope B7, scale 8, instruction optical wand 9, flexible circuit conductor 10, optoelectronic switch 11;
Tightrope A2 connects float 1 and balance weight body 5, and mid-span is on front fixed pulley 3 and rear fixed pulley 4;
The intermediate hanging of tightrope B7 is on commutation fixed pulley 6, and two ends connect balance weight body 5 and instruction optical wand 9 respectively;
Instruction optical wand 9 moves up and down along scale 8, and the middle part of instruction optical wand 9 is set with a metal tube, and to increase the weight of instruction optical wand 9, tightrope B7 is connected on metal tube, and instruction optical wand 9 can indicate the liquid level of liquid in container accurately and visually;
Instruction optical wand 9 power supply is controlled by optoelectronic switch 11 and is powered by flexible circuit conductor 10, and flexible circuit conductor 10 bottom is round, can be elevated and flexible with instruction optical wand 9;
The light-emitting component of instruction optical wand 9 is light emitting diode;
By the effect of fixed pulley 6 of commutating, keep instruction optical wand 9 and storage tank liquid level in the same way, be synchronized with the movement, the position height of instruction optical wand 9 is consistent with storage innage all the time, also can not affect liquid level and indicate during power-off.
Described scale 8 background color is white, and the scale mark on scale 8 and numeral adopt fluorescent powder coating, make the scale mark on scale 8 and numeral more clear.
Embodiment 2: as shown in Figure 1-2, a kind of tank level indicating device, is made up of float 1, tightrope A2, front fixed pulley 3, rear fixed pulley 4, balance weight body 5, commutation fixed pulley 6, tightrope B7, scale 8, instruction optical wand 9, flexible circuit conductor 10, optoelectronic switch 11;
Tightrope A2 connects float 1 and balance weight body 5, and mid-span is on front fixed pulley 3 and rear fixed pulley 4;
The intermediate hanging of tightrope B7 is on commutation fixed pulley 6, and two ends connect balance weight body 5 and instruction optical wand 9 respectively;
Instruction optical wand 9 moves up and down along scale 8, and the middle part of instruction optical wand 9 is set with a metal tube, and to increase the weight of instruction optical wand 9, tightrope B7 is connected on metal tube, and instruction optical wand 9 can indicate the liquid level of liquid in container accurately and visually;
Instruction optical wand 9 power supply is controlled by optoelectronic switch 11 and is powered by flexible circuit conductor 10, and flexible circuit conductor 10 bottom is round, can be elevated and flexible with instruction optical wand 9;
The light-emitting component of instruction optical wand 9 is light emitting diode;
By the effect of fixed pulley 6 of commutating, keep instruction optical wand 9 and storage tank liquid level in the same way, be synchronized with the movement, the position height of instruction optical wand 9 is consistent with storage innage all the time, also can not affect liquid level and indicate during power-off.
Embodiment 3: as shown in Figure 1-2,
For the detection of tank used for storing ammonia liquids position, storage tank height is 6m, and tank inside is communicated with air.
Being chosen as of each parts:
Float is that hollow sealing is cylindrical, and material is can the epoxy resin of anti-ammoniacal liquor corrosion, hollow out in the middle of float, and diameter is 40cm, and be highly 10cm, quality is about 7kg; The material of tightrope A adopts 304L stainless steel, and diameter is 0.8mm; The material of front fixed pulley is 304L stainless steel, and runner diameter is 10cm; The material of rear fixed pulley is 304L stainless steel, and runner diameter is 10cm; The material of tightrope B adopts 304L stainless steel, and diameter is 0.8mm; Balance weight body is right cylinder, and material is cast steel, and quality is about 4kg; The material of commutation fixed pulley is 304L stainless steel, and runner diameter is 10cm; The material of tightrope B adopts 304L stainless steel, and diameter is 0.8mm; Scale height is 6.2m, arranges a scale and numeral every 10cm; Instruction optical wand is light emitting diode, and color is red, and power is 2W, and power supply is 220VAC, and general assembly (TW) is about 1kg; Flexible circuit conductor is copper core, and specification is RVV2x0.3; Optoelectronic switch model is E3F-DS30Y1.
The distance of front fixed pulley and rear fixed pulley is about 1.6m, and commutation fixed pulley is about 30cm apart from rear fixed pulley, keeps the top of three fixed pulleys in the same horizontal line.Scale stands in storage tank side, is about 35cm, the justified of scale and storage tank apart from storage tank.
One end of tightrope A connects float, and the other end connects balance weight body, and mid-span is on front fixed pulley and rear fixed pulley; One end of tightrope B connects balance weight body, and the other end connects instruction optical wand, and mid-span is at commutation fixed pulley.
Instruction optical wand is located at the surface of scale, moves up and down along scale, indicates the middle part of optical wand to be set with a metal tube, and to increase the weight indicating optical wand, tightrope B is connected on metal tube, and instruction optical wand very accurately and can indicate the liquid level of storing up pot liquid intuitively.
Instruction optical wand is powered by flexible circuit conductor, and flexible circuit conductor bottom is round, and the flexible circuit conductor of round can be flexible with the lifting of instruction optical wand.Instruction optical wand light-emitting component be the light emitting diode that energy consumption is extremely low, can night or illumination more weak time illuminate scale.Power acquisition optoelectronic switch controls, and exports as relay system, and can bear electric current is 0.5A and voltage 220VAC, and optoelectronic switch can close power supply automatically when illumination is not enough.
The background color of scale is white, and the scale mark on scale and numeral adopt red fluorescent powder coating, can send fluorescence when illumination, is more convenient to carry out reading when illumination is not enough.
Embodiment 4: as shown in Figure 1-2,
For the detection of concentrated sulphuric acid liquid in storage tank thing position, storage tank height is 8m, and tank inside is communicated with air.
Being chosen as of each parts:
Float is hollow sealing cylindrical tube, and material is iron, and diameter is 50cm, and be highly 8cm, quality is about 6kg; Tightrope A is single-line type, and material is 316L stainless steel, and diameter is 1mm; The material of front fixed pulley adopts 316L stainless steel, is directly 50cm; The material of rear fixed pulley adopts 316L stainless steel, is directly 50cm; Balance weight body is right cylinder, and material is cast steel, and quality is about 4kg; The material of tightrope B adopts 304L stainless steel, and diameter is 1mm; The material of commutation fixed pulley is 304L stainless steel, and runner diameter is 50cm; Scale height is 8.2m, arranges a scale and numeral every 10cm; The light-emitting component of instruction optical wand is green light emitting diode, and power is 1.5W, and power supply is 220VAC, and general assembly (TW) is about 1.2kg; Flexible circuit conductor is copper core, and specification is RVV2x0.3; Optoelectronic switch model is E3F-5DY2 5L.
The distance of front fixed pulley and rear fixed pulley is about 2m, and commutation fixed pulley is about 30cm apart from rear fixed pulley, keeps the top of three fixed pulleys in the same horizontal line.Scale stands in storage tank side, is about 60cm, the justified of scale and storage tank apart from storage tank.
One end of tightrope A connects float, and the other end connects balance weight body, and mid-span is on front fixed pulley and rear fixed pulley; One end of tightrope B connects balance weight body, and the other end connects instruction optical wand, and mid-span is at commutation fixed pulley.
Instruction optical wand is located at the surface of scale, moves up and down along scale, and the middle part of instruction optical wand is set with a metal tube, and to increase the weight of instruction optical wand, tightrope B is connected on metal tube, and instruction optical wand very accurately and intuitively can indicate the liquid level of liquid in container.
Instruction optical wand is powered by flexible circuit conductor, and flexible circuit conductor bottom is round, and the flexible circuit conductor of round can be flexible with the lifting of instruction optical wand.Instruction optical wand light-emitting component be the light emitting diode that energy consumption is extremely low, can night or illumination more weak time illuminate scale.Power acquisition optoelectronic switch controls, and exports as bidirectional triode thyristor formula, and can bear electric current is 0.2A and voltage 220VAC, and optoelectronic switch can close power supply automatically when illumination is not enough.
The background color of scale is white, and the scale mark on scale and numeral adopt blue fluorescent powder coating, can send fluorescence when illumination, is more convenient to carry out reading when illumination is not enough.
Embodiment 5: as shown in Figure 1-2,
For the detection of hot-water cylinder water thing position, hot-water cylinder height is 4m, and water temperature is about 95 DEG C, and hot-water cylinder is closed, and pressure is about 22kPa.
Being chosen as of each parts:
Float is hollow sealing cylindrical tube, and material is 304L stainless steel, and diameter is 45cm, and be highly 10cm, quality is about 8kg; The material of tightrope A adopts 304L stainless steel, and diameter is 0.8mm; The material of front fixed pulley adopts 304L stainless steel, and diameter is 40cm; The material of rear fixed pulley adopts 304L stainless steel, and diameter is 40cm; Balance weight body is cylindrical, and material is cast steel, and quality is about 6kg; The material of tightrope B adopts 304L stainless steel, and diameter is 0.8mm; The material of commutation fixed pulley is 304L stainless steel, and runner diameter is 40cm; The material of tightrope C adopts 304L stainless steel, and diameter is 0.8mm; Scale height is 4.2m, arranges a scale and numeral every 10cm; The light-emitting component of instruction optical wand is blue light emitting diode, and power is 1.5W, and power supply is 24VDC, and general assembly (TW) is about 1.5kg; Flexible circuit conductor is copper core, and specification is RVV2x0.3; Optoelectronic switch model is LJC30A3-H-J/EZ.
The distance of front fixed pulley and rear fixed pulley is about 0.8m, and commutation fixed pulley is about 20cm apart from rear fixed pulley, keeps the top of three fixed pulleys in the same horizontal line.Scale stands in storage tank side, is about 40cm, the justified of scale and storage tank apart from storage tank.
One end of tightrope A connects float, and the other end connects balance weight body, and mid-span is on front fixed pulley and rear fixed pulley; One end of tightrope B connects balance weight body, and the other end connects instruction optical wand, and mid-span is at commutation fixed pulley.
Instruction optical wand is located at the surface of scale, moves up and down along scale, and the middle part of instruction optical wand is set with a metal tube, and to increase the weight of instruction optical wand, tightrope B is connected on metal tube, and instruction optical wand very accurately and intuitively can indicate the liquid level of liquid in container.
Instruction optical wand is powered by flexible circuit conductor, and flexible circuit conductor bottom is round, and the flexible circuit conductor of round can be flexible with the lifting of instruction optical wand.Instruction optical wand light-emitting component be the light emitting diode that energy consumption is extremely low, can night or illumination more weak time illuminate scale.Power acquisition optoelectronic switch controls, and exports as bidirectional triode thyristor formula, and can bear electric current is 0.2A and voltage 220VAC, and optoelectronic switch can close power supply automatically when illumination is not enough.
The background color of scale is white, and the scale mark on scale and numeral adopt green fluorescent powder coating, can send fluorescence when illumination, is more convenient to carry out reading when illumination is not enough.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (2)
1. a tank level indicating device, is characterized in that: by float (1), tightrope A(2), front fixed pulley (3), rear fixed pulley (4), balance weight body (5), commutation fixed pulley (6), tightrope B(7), scale (8), instruction optical wand (9), flexible circuit conductor (10), optoelectronic switch (11) form;
Tightrope A(2) connect float (1) and balance weight body (5), mid-span is on front fixed pulley (3) and rear fixed pulley (4);
Tightrope B(7) intermediate hanging in commutation fixed pulley (6), two ends connect balance weight body (5) respectively and indicate optical wand (9);
Instruction optical wand (9) moves up and down along scale (8), the middle part of instruction optical wand (9) is set with a metal tube, to increase the weight of instruction optical wand (9), tightrope B(7) be connected on metal tube, instruction optical wand (9) can indicate the liquid level of liquid in container accurately and visually;
Instruction optical wand (9) power supply is controlled by optoelectronic switch (11) and passes through flexible circuit conductor (10) power supply, and flexible circuit conductor (10) bottom is round, can be flexible with instruction optical wand (9) lifting;
The light-emitting component of instruction optical wand (9) is light emitting diode;
By commutation fixed pulley (6) effect, keep instruction optical wand (9) with storage tank liquid level in the same way, be synchronized with the movement, instruction optical wand (9) position height all the time with storage innage consistent, also can not affect during power-off liquid level indicate.
2. tank level indicating device according to claim 1, is characterized in that: described scale (8) background color is white, and the scale mark on scale (8) and numeral adopt fluorescent powder coating, make the scale mark on scale (8) and numeral more clear.
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Cited By (6)
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CN104280096A (en) * | 2014-10-13 | 2015-01-14 | 华东交通大学 | Self-floating water level tester |
CN106706890A (en) * | 2017-02-24 | 2017-05-24 | 徐工集团工程机械有限公司 | Asphalt foaming effect measuring device and method |
CN107024335A (en) * | 2016-02-01 | 2017-08-08 | 上海河口海岸科学研究中心 | A kind of vertical parameter test method and its device for wave current flume test |
CN110274665A (en) * | 2018-03-15 | 2019-09-24 | 国家电投集团科学技术研究院有限公司 | Liquid level detection device and container |
CN110296676A (en) * | 2019-05-29 | 2019-10-01 | 中国一冶集团有限公司 | A kind of drone of accurate detection urban river water bottom absolute altitude |
CN110686756A (en) * | 2019-09-23 | 2020-01-14 | 河南恒天久大实业有限公司 | Liquid level detection device for biological oil tank |
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2015
- 2015-04-22 CN CN201520246125.2U patent/CN204649272U/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104280096A (en) * | 2014-10-13 | 2015-01-14 | 华东交通大学 | Self-floating water level tester |
CN107024335A (en) * | 2016-02-01 | 2017-08-08 | 上海河口海岸科学研究中心 | A kind of vertical parameter test method and its device for wave current flume test |
CN107024335B (en) * | 2016-02-01 | 2019-05-03 | 上海河口海岸科学研究中心 | A kind of vertical parameter test method and its device for wave current flume test |
CN106706890A (en) * | 2017-02-24 | 2017-05-24 | 徐工集团工程机械有限公司 | Asphalt foaming effect measuring device and method |
CN106706890B (en) * | 2017-02-24 | 2023-07-04 | 江苏徐工工程机械研究院有限公司 | Asphalt foaming effect measuring device and method |
CN110274665A (en) * | 2018-03-15 | 2019-09-24 | 国家电投集团科学技术研究院有限公司 | Liquid level detection device and container |
CN110296676A (en) * | 2019-05-29 | 2019-10-01 | 中国一冶集团有限公司 | A kind of drone of accurate detection urban river water bottom absolute altitude |
CN110686756A (en) * | 2019-09-23 | 2020-01-14 | 河南恒天久大实业有限公司 | Liquid level detection device for biological oil tank |
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