CN102865896A - Non-contact intelligent flowmeter - Google Patents
Non-contact intelligent flowmeter Download PDFInfo
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- CN102865896A CN102865896A CN2012103345156A CN201210334515A CN102865896A CN 102865896 A CN102865896 A CN 102865896A CN 2012103345156 A CN2012103345156 A CN 2012103345156A CN 201210334515 A CN201210334515 A CN 201210334515A CN 102865896 A CN102865896 A CN 102865896A
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Abstract
The invention discloses a non-contact intelligent flowmeter, which comprises a container filled with a fluid to be measured, a weighing sensor for weighing the fluid to be measured, a control unit connected with the weighing sensor and used for responding to weighing variation of the weighing sensor, a measurement unit connected with the control unit and used for carrying out flow measurement on the weighing variation, and a display unit connected with the control unit and used for presetting and displaying flow. The non-contact intelligent flowmeter can be used for precisely measuring the flow of liquid in a non-contact way in specified application occasions, and the precision can reach parts per thousand or even higher level.
Description
Technical field
The present invention relates to a kind of flowmeter for fields such as medicine equipment, bio-pharmaceuticals or laboratories, refer specifically to a kind of contactless smart flowmeter.
Background technology
At present, it all is very difficult that nearly all flowmeter is measured less than the low discharge of 10 liters fluid for flow per hour, namely enable to measure, and also be the ultimate value of measuring scope at its flowmeter, so be difficult to reach the flow measurement accuracy requirement.Only have two kinds on the existing contactless flowmeter market, a kind of is ultrasonic flowmeter, its usage comparison limitation, it is very harsh that caliber, flow, flow velocity etc. require, and may realize hardly that to the mensuration of low discharge another kind is to utilize photoelectric technology to calculate dropping liquid quantity to measure flow, be used for the products such as automatic injector, but only have the dropping liquid state to measure, use also very limitation, also do not claim it is the flowmeter of broad sense.But contactless fluid Small flowrate measurement is in demand to medical treatment, some application biological and that relate to harmful fluids.
Summary of the invention
The technical problem to be solved in the present invention provides the high contactless smart flowmeter of a kind of flow measurement precision.
In order to solve the problems of the technologies described above, the present invention is realized by following technical scheme.
A kind of contactless smart flowmeter, comprise the container that detected fluid is housed, the LOAD CELLS that detected fluid is weighed, connect LOAD CELLS and respond the control module that the LOAD CELLS weighing changes, measuring and calculating unit, connection control unit and the display unit that flow is presetted and shows of flow measuring carried out in connection control unit and symmetrical quantitative change.
The symmetrical quantitative change in described measuring and calculating unit is carried out flow measuring and be may further comprise the steps:
The detected fluid unit volume is converted into proportion;
The weight that LOAD CELLS reduced within the unit interval is as specific discharge, and sets the effective value model week of specific discharge at display unit;
The data of the specific discharge accumulative total addition in valid value range are as the flow of measuring.
The described container that detected fluid is housed can adopt suspension type or bearing-type to contact with LOAD CELLS.
Patent beneficial effect of the present invention is, the present invention can be at the flow of the contactless precision measurement liquid in some application scenarios of appointment, to liquid, flow velocity, speed, flow, caliber etc. without strict requirement, precision can reach does several even higher rank of dividing, in medical treatment, the present invention is used for the unit for endoscope operation washing fluid and measures etc. with quantitative determination, amount of infusion.
Description of drawings
Fig. 1 is contactless smart flowmeter structure schematic block diagram of the present invention
Fig. 2 is the embodiment of the invention 1 structural representation
Fig. 3 is the embodiment of the invention 2 structural representations
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
The structural representation block diagram of contactless smart flowmeter as shown in Figure 1, the present invention includes the container that detected fluid is housed, the LOAD CELLS that detected fluid is weighed, connect LOAD CELLS and respond the control module that the LOAD CELLS weighing changes, measuring and calculating unit, connection control unit and the display unit that flow is presetted and shows of flow measuring carried out in connection control unit and symmetrical quantitative change.Detected fluid of the present invention can be any fluid, no matter be corrosivity or noxious material, no matter also be the material of high-purity, high cleanliness, or low temperature, high temperature fluid, can both measure as long as can carry the present invention, and measurement itself can not have any impact to it.Flow measurement of the present invention there is no the requirement of caliber, flow velocity, flow, as long as just can use in the valid value range of display unit setting specific discharge in advance.Flow measurement of the present invention need not access, install pipeline, as long as suitably lay or hang the container that hangs detected fluid, just can use.The outflow state of detected fluid of the present invention can be the various ways such as gravity flow, pump stream, evaporation.Detected fluid of the present invention must have container to load in advance, bottled, packed, barreled etc. for example, but the peak flow values of detected fluid and container capacity have nothing to do.The present invention can make various mounting meanss and shape according to the needs of equipment.
The symmetrical quantitative change in measuring and calculating of the present invention unit is carried out flow measuring and be may further comprise the steps:
The detected fluid unit volume is converted into proportion, and this step can be calculated by the weighing variation flow.
The weight that LOAD CELLS reduced within the unit interval is as specific discharge, and the valid value range of setting specific discharge.For example: take second as unit, initial weighing 6200ml, 1 gram=1ml is set in weighing, weighing is 6190ml after 1 second, the flow in 1 second is 10ml, weighing is 6178ml after 2 seconds, second second flow is 6190-6178, second second flow is 12ml, by that analogy.Because flowmeter uses certain flow range is arranged, according to practical operation, suppose to be applied in infusion process, setting specific discharge 0-10ml scope is valid data, the measuring and calculating unit only to valid data in this scope as the specific discharge accumulated value, and ignore in data instantaneous variation, off-limits.For example, use in transfusion, the nurse takes down empty bottle, instantaneous reduction 100ml, hang up new infusion bottle, moment has increased 600ml, perhaps the pulling hook, numeral is changed suddenly, and the measuring and calculating unit is not considered in the data that need scope these, not as discharge record.
The data of the specific discharge accumulative total addition in valid value range are as the flow of measuring.For example the specific discharge addition of above-mentioned work 1 second and 2 seconds: 10+12=24ml, the flow in 2 seconds is 24ml, so analogizes.The weighing initial value without direct relation, only has the Significant Change scope in two times to be only the data that the mensuration flow needs to flow measurement in the present invention any time.
Contactless smart flowmeter of the present invention, its container that detected fluid is housed can adopt suspension type or bearing-type to contact with LOAD CELLS, and the below is described respectively.
Embodiment 1
As shown in Figure 2, suspension type contactless smart flowmeter of the present invention comprises the container 11 that detected fluid is housed, and the LOAD CELLS 12 that detected fluid is weighed, LOAD CELLS 12 adopts suspension type to contact with container 11, the present invention also comprises and connects LOAD CELLS 12 and respond the control module 13 that LOAD CELLS 12 weighings change, control module 13 can adopt single-chip microcomputer, and the measuring and calculating unit (not providing in the accompanying drawing) of flow measuring is carried out in connection control unit 13 and symmetrical quantitative change, the measuring and calculating unit is located in the control module 13, and connection control unit 13 and display unit 14 that flow is presetted and shows, display unit 14 is display screen.The container 11 that detected fluid is equipped with in the present invention is provided with the pipe 15 that detected fluid flows out.
Embodiment 2
As shown in Figure 3, bearing-type contactless smart flowmeter of the present invention comprises the container 21 that detected fluid is housed, and the LOAD CELLS 22 that detected fluid is weighed, LOAD CELLS 22 is located at container 21 belows, LOAD CELLS 22 adopts bearing-type to contact with container 21, the present invention also comprises and connects LOAD CELLS 22 and respond the control module 23 that LOAD CELLS 22 weighings change, control module 23 can adopt single-chip microcomputer, and the measuring and calculating unit (not providing in the accompanying drawing) of flow measuring is carried out in connection control unit 23 and symmetrical quantitative change, the measuring and calculating unit is located in the control module 23, and connection control unit 23 and display unit 24 that flow is presetted and shows, display unit 24 is display screen.The container 21 that detected fluid is equipped with in the present invention is provided with the pipe 25 that detected fluid flows out.
Claims (3)
1. contactless smart flowmeter, it is characterized in that: comprise the container that detected fluid is housed, the LOAD CELLS that detected fluid is weighed, connect LOAD CELLS and respond the control module that the LOAD CELLS weighing changes, measuring and calculating unit, connection control unit and the display unit that flow is presetted and shows of flow measuring carried out in connection control unit and symmetrical quantitative change.
2. contactless smart flowmeter according to claim 1 is characterized in that: the symmetrical quantitative change in described measuring and calculating unit is carried out flow measuring and be may further comprise the steps:
The detected fluid unit volume is converted into proportion;
The weight that LOAD CELLS reduced within the unit interval is as specific discharge, and sets the valid value range of specific discharge at display unit;
The data of the specific discharge accumulative total addition in valid value range are as the flow of measuring.
3. contactless smart flowmeter according to claim 1, it is characterized in that: the described container that detected fluid is housed can adopt suspension type or bearing-type to contact with LOAD CELLS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103345156A CN102865896A (en) | 2012-09-06 | 2012-09-06 | Non-contact intelligent flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103345156A CN102865896A (en) | 2012-09-06 | 2012-09-06 | Non-contact intelligent flowmeter |
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| CN102865896A true CN102865896A (en) | 2013-01-09 |
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| CN2012103345156A Pending CN102865896A (en) | 2012-09-06 | 2012-09-06 | Non-contact intelligent flowmeter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528636A (en) * | 2013-10-21 | 2014-01-22 | 天津市同业科技发展有限公司 | Negative pressure fixed volumetric liquid amount dynamic measuring device |
| CN104146778A (en) * | 2014-08-21 | 2014-11-19 | 王志平 | Flushing fluid absorption and bleeding detection control system in endoscope operation |
| CN104848906A (en) * | 2014-12-18 | 2015-08-19 | 北汽福田汽车股份有限公司 | Measurement structure and method of liquid consumption amount and real-time measurement method |
| CN106125775A (en) * | 2016-07-05 | 2016-11-16 | 中国核动力研究设计院 | Based on devices and methods therefor steam flow being evaporated, measure and controlling |
| CN106125776A (en) * | 2016-07-05 | 2016-11-16 | 中国核动力研究设计院 | Devices and methods therefor steam flow being evaporated, measure and automatically controlling |
| CN106197591A (en) * | 2016-07-05 | 2016-12-07 | 中国核动力研究设计院 | Based on devices and methods therefor steam flow being evaporated, measure and regulating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03244468A (en) * | 1990-02-21 | 1991-10-31 | Otsuka Pharmaceut Factory Inc | Transfused liquid monitoring device |
| CN201668792U (en) * | 2010-05-21 | 2010-12-15 | 长春大学 | Venous transfusion alarm |
| CN102028990A (en) * | 2010-02-22 | 2011-04-27 | 缪学明 | Transfusion monitoring method |
| CN201885761U (en) * | 2010-11-08 | 2011-06-29 | 成都飞机工业（集团）有限责任公司 | Real-time solid particle flow detection device |
| CN202173652U (en) * | 2011-08-17 | 2012-03-28 | 成都睿感科技有限公司 | Liquid monitoring alarm device for infusion set |
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2012
- 2012-09-06 CN CN2012103345156A patent/CN102865896A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03244468A (en) * | 1990-02-21 | 1991-10-31 | Otsuka Pharmaceut Factory Inc | Transfused liquid monitoring device |
| CN102028990A (en) * | 2010-02-22 | 2011-04-27 | 缪学明 | Transfusion monitoring method |
| CN201668792U (en) * | 2010-05-21 | 2010-12-15 | 长春大学 | Venous transfusion alarm |
| CN201885761U (en) * | 2010-11-08 | 2011-06-29 | 成都飞机工业（集团）有限责任公司 | Real-time solid particle flow detection device |
| CN202173652U (en) * | 2011-08-17 | 2012-03-28 | 成都睿感科技有限公司 | Liquid monitoring alarm device for infusion set |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528636A (en) * | 2013-10-21 | 2014-01-22 | 天津市同业科技发展有限公司 | Negative pressure fixed volumetric liquid amount dynamic measuring device |
| CN104146778A (en) * | 2014-08-21 | 2014-11-19 | 王志平 | Flushing fluid absorption and bleeding detection control system in endoscope operation |
| CN104848906A (en) * | 2014-12-18 | 2015-08-19 | 北汽福田汽车股份有限公司 | Measurement structure and method of liquid consumption amount and real-time measurement method |
| CN106125775A (en) * | 2016-07-05 | 2016-11-16 | 中国核动力研究设计院 | Based on devices and methods therefor steam flow being evaporated, measure and controlling |
| CN106125776A (en) * | 2016-07-05 | 2016-11-16 | 中国核动力研究设计院 | Devices and methods therefor steam flow being evaporated, measure and automatically controlling |
| CN106197591A (en) * | 2016-07-05 | 2016-12-07 | 中国核动力研究设计院 | Based on devices and methods therefor steam flow being evaporated, measure and regulating |
| CN106125776B (en) * | 2016-07-05 | 2018-10-30 | 中国核动力研究设计院 | The method that steam flow is evaporated, measure and is automatically controlled |
| CN106197591B (en) * | 2016-07-05 | 2018-11-23 | 中国核动力研究设计院 | Based on the method for being evaporated, measuring and adjusting to steam flow |
| CN106125775B (en) * | 2016-07-05 | 2018-12-04 | 中国核动力研究设计院 | Based on the method for being evaporated, measuring and controlling to steam flow |
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Application publication date: 20130109 |