CN103528636A - Negative pressure fixed volumetric liquid amount dynamic measuring device - Google Patents
Negative pressure fixed volumetric liquid amount dynamic measuring device Download PDFInfo
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- CN103528636A CN103528636A CN201310495251.7A CN201310495251A CN103528636A CN 103528636 A CN103528636 A CN 103528636A CN 201310495251 A CN201310495251 A CN 201310495251A CN 103528636 A CN103528636 A CN 103528636A
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Abstract
The invention relates to a negative pressure fixed volumetric liquid amount dynamic measuring device which comprises a tray, a sucking disc, a negative pressure pipeline and a weighing sensor. The sucking disc is installed on the upper portion of the tray, an air faucet which is fixedly installed on the center of the sucking disc is connected with the negative pressure pipeline, and the tray is fixed to the upper portion of the weighing sensor. The negative pressure fixed volumetric liquid amount dynamic measuring device is scientific and reasonable in structural design, rigid fixation of a liquid storage bottle is achieved through negative pressure adsorption, liquid amount fluctuation interference is avoided, liquid amount dynamic accurate measurement is achieved, and the negative pressure fixed volumetric liquid amount dynamic measuring device is easy and convenient to operate and has the advantages of being wide in application range due to the fact that one measuring device can be used for various liquid storage bottles.
Description
Technical field
The present invention relates to liquid measure measure and control device, particularly a kind of negative pressure fixed volume formula liquid measure dynamic measurement device.
Background technology
In the fields such as medical treatment and chemical industry, often need to measure the liquid measure in liquid storage bottle.Particularly, in medical field, the instantaneous liquid measure of measuring in liquid storage bottle is the important control parameter of tissue liquid sucking-off amount during human body therapy, and for example instantaneous liquid measure exceeds normal value, is very likely that human body artery is damaged, causes blood sucking-off amount excessive.Therefore,, if can not accurately measure the instance variable that liquid measure surpasses normal value, very likely there is malpractice, threat to life safety.
Existing positive displacement liquid measuring device, as, float is set in liquid storage bottle, by sensor, detect float position, and then obtain liquid measure numerical value, the sensor that still detects float position is mostly interval and arranges, and cannot realize electrodeless (free of discontinuities) and detect.The liquid measuring device that also has Weighing type, it adopts pallet and weight sensor to measure the weight of liquid storage bottle, but, its pallet can only be applicable to its liquid storage bottle carrying, and nonetheless, also cannot effectively fix liquid storage bottle, while causing the interior liquid of liquid storage bottle to change, bottle is unstable, thereby measurement data is caused to interference, and causes the out of true of measuring and controlling.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of negative pressure fixed volume formula liquid measure dynamic measurement device is provided, it adopts negative-pressure adsorption-type to be fixed liquid storage bottle, and strong anti-interference performance is realized accurate measurement and control to liquid measure in liquid storage bottle.
The present invention solves its technical matters and is achieved through the following technical solutions:
A kind of negative pressure fixed volume formula liquid measure dynamic measurement device, it is characterized in that: comprise pallet, sucker, negative pressure line and LOAD CELLS, sucker is installed on pallet top, and the hard-wired air nozzle in sucker center connects negative pressure line, and pallet is fixed on LOAD CELLS top.
And, also comprise that one can be placed on the filter pad at sucker center.
And, solenoid valve group is installed in negative pressure line, negative pressure line is connected to negative pressure source by solenoid valve, and solenoid valve group is connected to CPU control module.
And, Bonding pressure survey sensor in negative pressure line, this pressure measurement sensor is connected to CPU control module.
And, described LOAD CELLS connecting sensor signal wire, LOAD CELLS is connected to CPU control module by sensor signal lines.
And described CPU control module connects liquid dynamically output display unit and alarm unit.
Advantage of the present invention and beneficial effect are:
1. this negative pressure fixed volume formula liquid measure dynamic measurement device, its inside at pallet is provided with a sucker, this sucker is connected to negative pressure source, during work, by suction disc vacuum pumping, realize fixing to liquid storage bottle, its adsorptive pressure can reach 60～70Kg, absorption affinity is very big, can realize rigidly fixing of all kinds of not isometric liquid storage bottles, overcome liquid measure in liquid storage bottle and change the interference to weight sensor measurement data, realize and measure in real time and accurately the object of dynamic value.
2. this negative pressure fixed volume formula liquid measure dynamic measurement device, places filter pad, thereby plays water proof and dust proof effect, to keep the normal use of negative pressure source at sucker center.
3. this negative pressure fixed volume formula liquid measure dynamic measurement device, in negative pressure line, be provided with the pressure measurement sensor that is connected to CPU control module, and by CPU control module, realize the automatic control of negative pressure, in use procedure, when negative pressure reaches certain numerical value, negative pressure source (pump) quits work; After long-time use, when negative pressure occurs to leak, negative pressure source is opened automatically.
4. this negative pressure fixed volume formula liquid measure dynamic measurement device, CPU control module connects liquid dynamically output display unit, and convenient operation personnel observe real-time measuring data intuitively; And by alarm unit, alarm when realization measurement numerical value departs from normal value, thus processing safety guaranteed, meet the control requirement of system.
5. scientific structure design of the present invention is reasonable, by negative-pressure adsorption, realize rigidly fixing of liquid storage bottle, overcome the interference of liquid measure change, realize the dynamic accurately measurement of liquid measure, easy and simple to handle, and a set of measurement mechanism, can be used for all kinds of liquid storage bottles, adopt different sucker unitized constructions to have advantages of applied widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Description of reference numerals:
1-bottle cap, 2-liquid storage bottle, 3-filter pad, 4-sucker, 5-air nozzle, 6-pallet, 7-LOAD CELLS, 8-sensor stand, 9-negative pressure line, 10-sensor signal lines.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A fixed volume formula liquid measure dynamic measurement device, it comprises pallet 6, sucker 4, negative pressure line 9 and LOAD CELLS 7, and sucker is installed on pallet top, at pallet inside surface, is shaped with groove 11, the bottom setting-in of sucker enters in this groove.The hard-wired air nozzle 5 in sucker center connects negative pressure line 9, and pallet 6 is fixed on LOAD CELLS top.LOAD CELLS is fixed on sensor stand 8.Also comprise that one can be placed on the filter pad 3 at sucker center.
Solenoid valve group is installed in negative pressure line, and negative pressure line is connected to negative pressure source by solenoid valve, and solenoid valve group is connected to CPU control module.Bonding pressure survey sensor in negative pressure line, this pressure measurement sensor is connected to CPU control module.LOAD CELLS connecting sensor signal wire 10, LOAD CELLS is connected to CPU control module by sensor signal lines.CPU control module connects liquid dynamically output display unit and alarm unit.
The principle of work of this negative pressure fixed volume formula liquid measure dynamic measurement device is:
During work, by suction disc vacuum pumping, realize fixing to liquid storage bottle 2, bottle cap 1 is installed on liquid storage bottle.Its adsorptive pressure can reach 60～70Kg, and absorption affinity is very big, can realize rigidly fixing of all kinds of not isometric liquid storage bottles, by LOAD CELLS, realize the weighing in real time of liquid storage bottle, obtain dynamic measurement data, in measuring process, as measurement data exceeds setting normal value, system alarm.
Although disclose for the purpose of illustration embodiments of the invention and accompanying drawing, but it will be appreciated by those skilled in the art that: within not departing from the spirit and scope of the present invention and claims, various replacements, variation and modification are all possible, therefore, scope of the present invention is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (6)
1. a negative pressure fixed volume formula liquid measure dynamic measurement device, it is characterized in that: comprise pallet, sucker, negative pressure line and LOAD CELLS, sucker is installed on pallet top, and the hard-wired air nozzle in sucker center connects negative pressure line, and pallet is fixed on LOAD CELLS top.
2. negative pressure fixed volume formula liquid measure dynamic measurement device according to claim 1, is characterized in that: also comprise that one can be placed on the filter pad at sucker center.
3. negative pressure fixed volume formula liquid measure dynamic measurement device according to claim 1, is characterized in that: solenoid valve group is installed in negative pressure line, and negative pressure line is connected to negative pressure source by solenoid valve, and solenoid valve group is connected to CPU control module.
4. negative pressure fixed volume formula liquid measure dynamic measurement device according to claim 1, is characterized in that: Bonding pressure survey sensor in negative pressure line, this pressure measurement sensor is connected to CPU control module.
5. negative pressure fixed volume formula liquid measure dynamic measurement device according to claim 1, is characterized in that: described LOAD CELLS connecting sensor signal wire, LOAD CELLS is connected to CPU control module by sensor signal lines.
6. negative pressure fixed volume formula liquid measure dynamic measurement device according to claim 1, is characterized in that: described CPU control module connects liquid dynamically output display unit and alarm unit.
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| CN201310495251.7A CN103528636B (en) | 2013-10-21 | 2013-10-21 | Negative pressure fixed volume formula liquid measure dynamic measurement device |
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| CN201310495251.7A CN103528636B (en) | 2013-10-21 | 2013-10-21 | Negative pressure fixed volume formula liquid measure dynamic measurement device |
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| CN103528636A true CN103528636A (en) | 2014-01-22 |
| CN103528636B CN103528636B (en) | 2018-02-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193433A (en) * | 2015-10-30 | 2015-12-30 | 复旦大学附属上海市第五人民医院 | Multifunctional medical urinal |
| CN106066198A (en) * | 2016-07-01 | 2016-11-02 | 环境保护部南京环境科学研究所 | A kind of easy device measuring biogas volume in collection airbag and assay method |
| CN108871495A (en) * | 2018-06-05 | 2018-11-23 | 江苏卓微生物科技有限公司 | A kind of liquid level detection system and liquid-level detecting method |
| CN110201249A (en) * | 2019-05-30 | 2019-09-06 | 天津市同业科技发展有限公司 | A kind of flow measurement device for vacuum suction |
| WO2020238675A1 (en) * | 2019-05-30 | 2020-12-03 | 天津市同业科技发展有限公司 | Multifunctional central attraction system capable of realizing remote monitoring |
| CN112051097A (en) * | 2020-09-07 | 2020-12-08 | 安徽昊天生物科技有限公司 | Sampling device for production detection based on p-methylphenol |
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| EP0916585A1 (en) * | 1997-11-18 | 1999-05-19 | Rigling, Heinz | Supporting device for smaller disposal containers |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193433A (en) * | 2015-10-30 | 2015-12-30 | 复旦大学附属上海市第五人民医院 | Multifunctional medical urinal |
| CN106066198A (en) * | 2016-07-01 | 2016-11-02 | 环境保护部南京环境科学研究所 | A kind of easy device measuring biogas volume in collection airbag and assay method |
| CN108871495A (en) * | 2018-06-05 | 2018-11-23 | 江苏卓微生物科技有限公司 | A kind of liquid level detection system and liquid-level detecting method |
| CN110201249A (en) * | 2019-05-30 | 2019-09-06 | 天津市同业科技发展有限公司 | A kind of flow measurement device for vacuum suction |
| WO2020238675A1 (en) * | 2019-05-30 | 2020-12-03 | 天津市同业科技发展有限公司 | Multifunctional central attraction system capable of realizing remote monitoring |
| CN110201249B (en) * | 2019-05-30 | 2024-05-17 | 天津市同业科技发展有限公司 | Flow measuring device for negative pressure suction |
| CN112051097A (en) * | 2020-09-07 | 2020-12-08 | 安徽昊天生物科技有限公司 | Sampling device for production detection based on p-methylphenol |
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| CN103528636B (en) | 2018-02-23 |
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