CN104317314A - Liquid level control device - Google Patents
Liquid level control device Download PDFInfo
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- CN104317314A CN104317314A CN201410566897.4A CN201410566897A CN104317314A CN 104317314 A CN104317314 A CN 104317314A CN 201410566897 A CN201410566897 A CN 201410566897A CN 104317314 A CN104317314 A CN 104317314A
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Abstract
The invention discloses a liquid level control device. The liquid level control device comprises a water absorption pipe, a water pump, a liquid storage device and a water outlet pipe, wherein the water absorption pipe is connected with the water pump, the water pump is connected with the liquid storage device, the liquid storage device is connected with the water outlet pipe, a water absorption inlet of the water absorption pipe is arranged in a container, the height of the water absorption inlet of the water absorption pipe is the height of a target liquid level, the liquid storage device is provided with an opening and communicated with air, an outlet of the water outlet pipe is arranged in the container, and the water discharge volume of the water outlet pipe is less than the extraction volume of the water pump in unit time. The liquid level control device can guarantee stability of a liquid surface for a long time, and is simple in structure, few in component, stable in running, and particularly suitable for liquid level control and filtration of cutting fluid during the microscopy imaging process.
Description
Technical field
The present invention relates to fluid level control device field, more specifically, relate to a kind of fluid level control device.
Background technology
For the biological sample embedded or production piece, mechanical chromatography micro-imaging is a kind of very important method of the view data obtaining its three-dimension high-resolution.A kind of imaging strategies wherein first carries out cut to sample surfaces, excises certain thickness, and then with microscope to finished sample surfaces imaging.The cut of sample surfaces is generally carried out inside cutting fluid, the use of cutting fluid not only can play lubrication in process, and its refractive index higher than air makes us that the water logging of more high-NA or oil immersion objective can be used to come sample surfaces imaging, thus obtain the image of higher optical resolution.
Processed sample in cutting fluid also to finished imaging of samples, needs to solve following Railway Project: 1, need the chip in timely filtering cutting fluid, wafts hinder imaging to prevent chip below object lens; 2, use water logging or oil immersion objective imaging, need camera lens to submerge in cutting fluid always, otherwise can cause that refractive index is not mated, image blur.And due to the volatilization of cutting fluid or evaporation, need to supplement cutting fluid in time to keep liquid level constant.This just relates to chip filtration in mechanical tomographic process and cutting fluid supplementary question.Need in addition to consider a bit, in order to reach certain specific sample mark effect, often add valuable or hypertoxic reagent in cutting fluid, so cutting fluid often needs circulating filtration to use.
At present, liquid filtering technology and level control (LC) technology all have more ripe structure.Liquid filtering technology is mostly guided needing the solution filtered by liquor pump or air pump, makes it cycle through filter device, thus arrives the effect of filter liquide.But these filtration units are all the self-loopa processes of liquid itself, do not have device for supplying.Therefore, be difficult to realize level control (LC) by such filtering system.And existing Level Control Technology, be mostly utilize liquid level sensor to detect liquid level, then by effectors such as control circuit by-pass valve controls, additive liq in container.Due in such control device, liquid does not circulate, and is therefore difficult to carry out filtration treatment by this device to liquid.
Existing fluid level control device, realizes level control (LC) by the sensor-based system of complexity, is all simple to realize a certain function, and for level control (LC) simple in industry, or liquid filtering can both reach reasonable effect.But in the face of both needing filter liquide, need again the mechanical chromatography micro-imaging application controlled liquid level, these apparatus structures were complicated and heavy, were difficult to integrate use.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of fluid level control device, its object is to, by controlling power and the pressure equilibrium of liquid circulation lines, realizing liquid level self-poise.
For achieving the above object, according to the invention provides a kind of fluid level control device, suction hose, water pump, reservoir and rising pipe is comprised; Described suction hose is connected with water pump, and water pump is connected with reservoir, and reservoir is connected with rising pipe; The water sucking mouth of described suction hose is arranged in container, and it is highly target level height, and described reservoir has opening, with air communication; In the outlet setting of described rising pipe and container, in the unit interval, its water outlet volume extracts volume lower than water pump.
Preferably, described fluid level control device, the power adjustable of its water pump.
Preferably, described fluid level control device, is provided with filter screen in its reservoir.
Preferably, described fluid level control device, the water delivering orifice of its rising pipe is arranged on container bottom.
Preferably, described fluid level control device, its rising pipe is provided with flow controller.
In sum, the present invention only utilizes liquid to put forward the circulation system, solves liquid filtering and level control (LC) problem simultaneously.This device can while filtering the chip existed in cutting fluid, the liquid level stabilizing of long-time guarantee cutting fluid is constant, and can adjust the height of cutting fluid liquid level at any time, apparatus structure is simple, component parts is few, stable, be particularly useful for chip filtration and cutting fluid liquid level in mechanical chromatography micro-imaging process and keep.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of embodiment 1;
Fig. 2 is the one-piece construction schematic diagram of embodiment 2;
Fig. 3 is the one-piece construction schematic diagram of embodiment 3.
In all of the figs, identical Reference numeral is used for representing identical element or structure, and wherein: 1 is water pump, 2 is container, and 3 is suction hose, and 4 is rising pipe, and 5 is liquid level, and 6 is reservoir, and 7 is filter screen, and 8 is flow controller.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
Fluid level control device provided by the invention, comprises suction hose 3, water pump 1, reservoir 6 and rising pipe 4.Described suction hose 3 is connected with water pump 1, and water pump 1 is connected with reservoir 6, and reservoir 6 is connected with rising pipe 4.
The water sucking mouth of described suction hose 3 is arranged in container 2, and it is highly target level height.
Described reservoir 6 has opening, with air communication.
The outlet of described rising pipe 4 is arranged in container 2, and in the unit interval, its water outlet volume extracts volume lower than water pump 1.Preferably, described rising pipe 4 is provided with flow controller 8, adjusting water outlet flow.
Described water pump 1, its power adjustable, water pump 1 extracts volume, is the pump water volume of setting when water pump 1 works.Preferably, in order to not make device heavy, water pump 1 uses Mini gear pump, and the rotating speed of gear-type pump is adjustable.
In described reservoir 6, filter screen 7 can be set, for filtration cycle liquid.Be provided with the dividing plate can placing filter screen 7 in reservoir 6, in the middle of dividing plate, have hole to leak.Filter screen 7 can use the materials such as sponge, gauze, copper mesh, silver net according to the requirement of the size of chip and corrosion resistivity.
During work, the water sucking mouth of suction hose 3 is fixed on container 2 target level height, the speed maintaining water pump 1 water suction is faster than the speed of rising pipe 4 water outlet.If the liquid level in container 2 is higher than target level, the liquid level in container 2 will be reduced to the position of water sucking mouth always.So our line up position controls, just easily can control the liquid level 5 in container 2, the height of the drinking-water pipe mouth of pipe is exactly target level height; When in container 2, liquid level drops to the position of water sucking mouth, rising pipe 4 can suck portion of air, and a part of water reaches a kind of equilibrium state; When the liquid level in container 2 drops to below water sucking mouth, the liquid outflow amount in reservoir 6 is greater than the amount of liquid that water sucking mouth is drawn, liquid inlet container 2, and liquid level raises.In theory, in the unit interval, the water outlet volume of rising pipe 4 is lower than the extraction volume of water pump 1, then liquid level 5 can maintain target level height.
The stationary mode of liquid level 5 mainly relies on the coordination of inflow and aquifer yield in container 2, if can ensure the size of inflow just equal aquifer yield and evaporation capacity and, the liquid level 5 so in container 2 keeps stable surely with regard to one.This device just utilizes water circulation to reach such effect.In device, water pump 1 is placed on specific part in water circulation by us, is located at the water suction link of water circulation, is responsible for the water in container 2 to be retracted in reservoir 6., water pump 1 absorption speed is set in specific parameter meanwhile, makes unit interval water pump 1 extract volume and be greater than reservoir 6 water outlet volume.Then, control position, water sucking mouth, the mouth of pipe of suction hose 3 is controlled the liquid level 5 that just can easily control at suitable height in container 2, now the height of liquid level 5 is exactly the height of suction hose 3 mouth of pipe.The extraction speed of water circulation part is greater than water intake velocity in theory, water in container 2 can reduce always, but because the mouth of pipe is not put into bottom container 2, so when liquid level drops to the position of the mouth of pipe, suction hose 3 can suck portion of air, part water, reaches a kind of equilibrium state, makes the water absorbing capacity of water pump 1 just equal the difference of container 2 inflow and its evaporation capacity.
Consider from the angle of level control (LC), wanting to keep liquid level 5 in container 2 to stablize, need only wanting can compensate evaporating liquid.The stationary mode of the design is also by compensating.But unlike, the compensation way of this device is that one compensates constantly, do not need to carry out detection to liquid level 5 to judge, decrease loaded down with trivial details liquid level 5 detecting portion, and not with being driven effect mechanism to regulate liquid level 5 by controller in device, but complete the task of whole level control (LC) by simple water circulation structure.In addition, because level control (LC) have employed the structure of water circulation, for the filtration of liquid, we only need in reservoir 6, add a link of filtering, and namely by water circulation, the solution in container 2 are carried out filtration treatment.Level control (LC) and filtration, completed by same structure completely, and this makes Dynamic System easy, cheap, and simple structure makes whole control system extremely stable.
Because the structure of device is simple, building block is few.We can make corrosion-resistant screening to the material of container 2 and water pump 1 and water pipe very easily, thus the Liquid level met corrosive liquids and liquid filtering.
Be below embodiment:
Embodiment 1
A kind of fluid level control device, as shown in Figure 1, comprises suction hose 3, water pump 1, reservoir 6 and rising pipe 4.Described suction hose 3 is connected with water pump 1, and water pump 1 is connected with reservoir 6, and reservoir 6 is connected with rising pipe 4.
The water sucking mouth of described suction hose 3 is arranged in container 2, and it is highly target level height.
Described reservoir 6 has opening, with air communication.
In the outlet setting of described rising pipe 4 and container 2, described rising pipe 4 is provided with flow controller 8, adjusting water outlet flow, water outlet 1L per minute.
Described water pump 1, its power adjustable, water pump 1 extracts volumes per minute clock and extracts volume 1.5L.
During work, the water sucking mouth of suction hose 3 is fixed on container 2 target level height, the speed maintaining water pump 1 water suction is faster than the speed of rising pipe 4 water outlet.If the liquid level in container 2 is higher than target level, the liquid level in container 2 will be reduced to the position of water sucking mouth always.So our line up position controls, just easily can control the liquid level 5 in container 2, the height of the drinking-water pipe mouth of pipe is exactly target level height; When in container 2, liquid level drops to the position of water sucking mouth, rising pipe 4 can suck portion of air, and a part of water reaches a kind of equilibrium state; When the liquid level in container 2 drops to below water sucking mouth, the liquid outflow amount in reservoir 6 is greater than the amount of liquid that water sucking mouth is drawn, liquid inlet container 2, and liquid level raises.In theory, in the unit interval, the water outlet volume of rising pipe 4 is lower than the extraction volume of water pump 1, then liquid level 5 can maintain target level height.
Embodiment 2
For chip filtration and the fluid level control device of mechanical chromatography, as shown in Figure 2, suction hose 3, water pump 1, reservoir 6 and rising pipe 4 is comprised.Described suction hose 3 is connected with water pump 1, and water pump 1 is connected with reservoir 6, and reservoir 6 is connected with rising pipe 4.
The water sucking mouth of described suction hose 3 is arranged in container 2, and it is highly target level height.
Described reservoir 6 has opening, with air communication.
In the outlet setting of described rising pipe 4 and container 2, water outlet per minute 100 milliliters.
Described water pump 1, its power adjustable, water pump 1 extracts volumes per minute clock and extracts volume 200 milliliters.In order to not make device heavy, water pump 1 uses Mini gear pump, and the rotating speed of gear-type pump is adjustable.
In described reservoir 6, filter screen 7 can be set, for filtration cycle liquid.Be provided with the dividing plate can placing filter screen 7 in reservoir 6, in the middle of dividing plate, have hole to leak.Filter screen 7 can use the materials such as sponge, gauze, copper mesh, silver net according to the requirement of the size of chip and corrosion resistivity, and the present embodiment adopts copper mesh.
During work, the water sucking mouth of suction hose 3 is fixed on container 2 target level height, the speed maintaining water pump 1 water suction is faster than the speed of rising pipe 4 water outlet.If the liquid level in container 2 is higher than target level, the liquid level in container 2 will be reduced to the position of water sucking mouth always.So our line up position controls, just easily can control the liquid level 5 in container 2, the height of the drinking-water pipe mouth of pipe is exactly target level height; When in container 2, liquid level drops to the position of water sucking mouth, rising pipe 4 can suck portion of air, and a part of water reaches a kind of equilibrium state; When the liquid level in container 2 drops to below water sucking mouth, the liquid outflow amount in reservoir 6 is greater than the amount of liquid that water sucking mouth is drawn, liquid inlet container 2, and liquid level raises.In theory, in the unit interval, the water outlet volume of rising pipe 4 is lower than the extraction volume of water pump 1, then liquid level 5 can maintain target level height.
Embodiment 3
It is adjustable that one goes out water speed, has the fluid level control device of filtration, as shown in Figure 3, comprises suction hose 3, water pump 1, reservoir 6, rising pipe 4 and aquifer yield variable valve.Described suction hose 3 is connected with water pump 1, and water pump 1 is connected with reservoir 6, and reservoir 6 is connected with rising pipe 4.
The water sucking mouth of described suction hose 3 is arranged in container 2, and it is highly target level height.
Described reservoir 6 has opening, with air communication.
In the outlet setting of described rising pipe 4 and container 2, its water delivering orifice is arranged on bottom container 2.Rising pipe 4 is provided with flow controller 8.In unit interval, its water outlet volume extracts volume lower than water pump 1
Described water pump 1, employing be Mini gear pump, the rotating speed of gear-type pump is adjustable.
In described reservoir 6, filter screen 7 can be set, for filtration cycle liquid.Be provided with the dividing plate can placing filter screen 7 in reservoir 6, in the middle of dividing plate, have hole to leak.Filter screen 7 can use the materials such as sponge, gauze, copper mesh, silver net according to the requirement of the size of chip and corrosion resistivity.
During work, the water sucking mouth of suction hose 3 is fixed on container 2 target level height, the speed maintaining water pump 1 water suction is faster than the speed of rising pipe 4 water outlet.If the liquid level in container 2 is higher than target level, the liquid level in container 2 will be reduced to the position of water sucking mouth always.So our line up position controls, just easily can control the liquid level 5 in container 2, the height of the drinking-water pipe mouth of pipe is exactly target level height; When in container 2, liquid level drops to the position of water sucking mouth, rising pipe 4 can suck portion of air, and a part of water reaches a kind of equilibrium state; When the liquid level in container 2 drops to below water sucking mouth, the liquid outflow amount in reservoir 6 is greater than the amount of liquid that water sucking mouth is drawn, liquid inlet container 2, and liquid level raises.In theory, in the unit interval, the water outlet volume of rising pipe 4 is lower than the extraction volume of water pump 1, then liquid level 5 can maintain target level height.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a fluid level control device, is characterized in that, comprises suction hose (3), water pump (1), reservoir (6) and rising pipe (4); Described suction hose (3) is connected with water pump (1), and water pump (1) is connected with reservoir (6), and reservoir (6) is connected with rising pipe (4); The water sucking mouth of described suction hose (3) is arranged in container (2), and it is highly target level height, and described reservoir (6) has opening, with air communication; In the outlet setting of described rising pipe (4) and container (2), in the unit interval, its water outlet volume extracts volume lower than water pump (1).
2. fluid level control device as claimed in claim 1, is characterized in that, the power adjustable of described water pump (1).
3. fluid level control device as claimed in claim 1, is characterized in that, be provided with filter screen (7) in described reservoir (6).
4. the fluid level control device as described in claims 1 to 3 any one, is characterized in that, the water delivering orifice of described rising pipe (4) is arranged on container (2) bottom.
5. fluid level control device as claimed in claim 4, is characterized in that, described rising pipe (4) is provided with flow controller (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410566897.4A CN104317314A (en) | 2014-10-22 | 2014-10-22 | Liquid level control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410566897.4A CN104317314A (en) | 2014-10-22 | 2014-10-22 | Liquid level control device |
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| CN104317314A true CN104317314A (en) | 2015-01-28 |
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| CN201410566897.4A Pending CN104317314A (en) | 2014-10-22 | 2014-10-22 | Liquid level control device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406367A (en) * | 2016-06-02 | 2017-02-15 | 武汉沃亿生物有限公司 | Liquid level automatic maintenance device and method |
| CN109199068A (en) * | 2017-06-30 | 2019-01-15 | 佛山市顺德区美的电热电器制造有限公司 | cooking apparatus and control method |
| CN109307542A (en) * | 2017-07-27 | 2019-02-05 | 中国石油化工股份有限公司 | A kind of site desorption measuring device and its method |
| CN109760792A (en) * | 2019-02-13 | 2019-05-17 | 广东泰福船舶科技有限公司 | A kind of water circulation type fisherman |
| CN112342598A (en) * | 2020-11-02 | 2021-02-09 | 常德市联嘉机械有限公司 | Convenient-to-use rotary electroplating device with positioning structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406367A (en) * | 2016-06-02 | 2017-02-15 | 武汉沃亿生物有限公司 | Liquid level automatic maintenance device and method |
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| CN109199068A (en) * | 2017-06-30 | 2019-01-15 | 佛山市顺德区美的电热电器制造有限公司 | cooking apparatus and control method |
| CN109199068B (en) * | 2017-06-30 | 2021-07-09 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance and control method |
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| CN109760792A (en) * | 2019-02-13 | 2019-05-17 | 广东泰福船舶科技有限公司 | A kind of water circulation type fisherman |
| CN112342598A (en) * | 2020-11-02 | 2021-02-09 | 常德市联嘉机械有限公司 | Convenient-to-use rotary electroplating device with positioning structure |
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Application publication date: 20150128 |