CN103148907A - Low-flow liquid flow measurement device - Google Patents
Low-flow liquid flow measurement device Download PDFInfo
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- CN103148907A CN103148907A CN201310091052XA CN201310091052A CN103148907A CN 103148907 A CN103148907 A CN 103148907A CN 201310091052X A CN201310091052X A CN 201310091052XA CN 201310091052 A CN201310091052 A CN 201310091052A CN 103148907 A CN103148907 A CN 103148907A
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Abstract
The invention aims to provide a device capable of measuring low-flow liquid flow. The device can be used for carrying out accurate flow measurement on liquid with low flow, unstable flow, and discontinuous flow. The principle of the device comprises the steps of: adopting a volumetric continuous measurement manner, automatically measuring the time for measured liquid to fully fill a tank body through storing the liquid into the tank body with fixed volume, and measuring average flow rate of the measured liquid according to the volume of the tank body and the filled time. The related data obtained through measurement is automatically stored in a control circuit, corresponding measurement data is displayed through an equipment display terminal simultaneously, and the stored measurement data realizes data share through a standard communication port.
Description
Technical field
The present invention relates to a kind ofly can measure low discharge, instability of flow, the discontinuous liquid flow measuring device of flow.
Background technology
In existing liquid flow mearuement equipment, flow velocity and the pressure of fluid to be measured there is certain requirement, when the flow velocity of fluid to be measured was too low, it is large that error in dipping often appears in existing liquid flow mearuement equipment, even unmeasurable problem.
Summary of the invention
The invention provides the self-measuring device of liquid under a kind of low discharge.This device can carry out accurate flow measurement to low discharge, instability of flow, the discontinuous liquid of flow.
The technical solution adopted for the present invention to solve the technical problems is: adopt positive displacement continuous coverage mode, by liquid being deposited in the casing of fixed volume, automatic gauge goes out the fluid to be measured stream trunkful required time of body, and calculates the average discharge of fluid to be measured according to tank-volumes and filling time.Related data for measurement obtains will be stored in control circuit automatically, show corresponding measurement data by the equipment display terminal simultaneously, and the measurement data of storage also can realize sharing of data by the standard PORT COM.
The invention has the beneficial effects as follows: can solve the flow measurement problem of low discharge, instability of flow, the discontinuous liquid of flow, and simple in structure.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of first embodiment of the invention.
Fig. 2 is the structural representation of second embodiment of the invention.
1. housings in figure, 2. electromagnetism push rod, 3. liquid meter chamber, 4. float switch, 5. control circuit, 6. overflow vent, 7. valve, 8. liquid inlet, 9. liquid outlet, 10. valve plug, 11. baffle plates, 12. water-level floats, 13. guide rods, 14. display terminals.
Embodiment
In the embodiment shown in fig. 1, comprise housing (1), electromagnetism push rod (2), liquid meter chamber (3), float switch (4), control circuit (5), overflow vent (6), valve (7), liquid inlet (8), liquid outlet (9), valve plug (10), baffle plate (11), water-level float (12), guide rod (13), display terminal (14), wherein liquid inlet (8) are placed in the device upper right side.
when the low discharge liquid flow measuring device is worked, control circuit (5) drives electromagnetism push rod (2) and moves down, because valve plug (10) is connected with electromagnetism push rod (2) by guide rod (13), so valve plug (10) also moves down and blocks valve (7), beginning filling liquid in liquid meter chamber (3), when liquid filling is to the appointment liquid level in liquid meter chamber (3), float switch (4) closure, send the complete signal of metering, after control circuit (5) obtains measuring complete signal, calculate the average discharge of current liquid according to liquid filling time and liquid filling volumescope, then, control circuit (5) is controlled electromagnetism push rod (2) and is up moved, open the liquid in valve (7) and emptying liquid meter chamber (3), this metering is complete.Measure complete data and can pass through display terminal (14) demonstration, also can be by the data sharing between the realization of standard PORT COM and miscellaneous equipment.When this low discharge liquid flow measuring device breaks down, in the time of can't realizing the unlatching of valve plug (10), liquid in liquid meter chamber (3), will be by overflow vent (6) and liquid outlet (9), discharge liquid, control circuit (5) will send failure alarm signal simultaneously, prompting user maintenance.
In embodiment illustrated in fig. 2, liquid directly enters in liquid meter chamber (3) by liquid inlet (8), complete the metering of fluid flow by liquid meter chamber (3), and when this device breaks down, can by being positioned at the overflow vent (6) in device left side, liquid be discharged.
Claims (3)
1. low discharge liquid flow measuring device, it comprises housing (1), electromagnetism push rod (2), liquid meter chamber (3), float switch (4), control circuit (5), overflow vent (6), valve (7), liquid inlet (8), liquid outlet (9), valve plug (10), baffle plate (11), water-level float (12), guide rod (13), display terminal (14), it is characterized in that: under the driving of control circuit (5), electromagnetism push rod (2) promotes valve plug (10) motion by guide rod (13), realize the switching of valve (7), flow into the volume of liquid in liquid meter chamber (3) and required time by calculating, automatically realize the measurement of flow, the data of measuring can be passed through display terminal (14) and show, also can be by the standard PORT COM that provides in control circuit (5), realize the teletransmission of data.
2. a kind of low discharge liquid flow measuring device according to claim 1, it is characterized in that: liquid is by in liquid inlet (8), baffle plate (11) influent measurement chamber (3), and overflow vent (6) is positioned under baffle plate (11).
3. a kind of low discharge liquid flow measuring device according to claim 1, it is characterized in that: liquid directly enters in liquid meter chamber (3) by liquid inlet (8), and overflow vent (6) is positioned at the left side of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091052XA CN103148907A (en) | 2013-03-21 | 2013-03-21 | Low-flow liquid flow measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091052XA CN103148907A (en) | 2013-03-21 | 2013-03-21 | Low-flow liquid flow measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103148907A true CN103148907A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310091052XA Pending CN103148907A (en) | 2013-03-21 | 2013-03-21 | Low-flow liquid flow measurement device |
Country Status (1)
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| CN (1) | CN103148907A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335684A (en) * | 2013-06-14 | 2013-10-02 | 鞍钢集团矿业公司 | Portable ore pulp flowmeter and method for measuring ore pulp flow |
| CN103471676A (en) * | 2013-09-13 | 2013-12-25 | 华北石油通信公司 | Unstable flow liquid online flow measuring device |
| CN105891346A (en) * | 2016-03-03 | 2016-08-24 | 青岛鲁海光电科技有限公司 | Ion chromatography system for controlling double-conductance-cell series technology through virtual instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1527030A (en) * | 2003-09-19 | 2004-09-08 | 桂林电子工业学院 | Multiple parameter measurement device and method for small caliber and small flow fluid |
| CN101162166A (en) * | 2007-11-06 | 2008-04-16 | 西安交通大学 | Intelligent positive displacement flow meter |
| CN202066539U (en) * | 2011-04-14 | 2011-12-07 | 上海敏泰液压件有限公司 | Device used for high-precisely and automatically measuring flow rate of liquid |
| CN203241095U (en) * | 2013-03-21 | 2013-10-16 | 天津哈德韦尔自控技术有限公司 | Low-flow liquid flow measurement device |
-
2013
- 2013-03-21 CN CN201310091052XA patent/CN103148907A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1527030A (en) * | 2003-09-19 | 2004-09-08 | 桂林电子工业学院 | Multiple parameter measurement device and method for small caliber and small flow fluid |
| CN101162166A (en) * | 2007-11-06 | 2008-04-16 | 西安交通大学 | Intelligent positive displacement flow meter |
| CN202066539U (en) * | 2011-04-14 | 2011-12-07 | 上海敏泰液压件有限公司 | Device used for high-precisely and automatically measuring flow rate of liquid |
| CN203241095U (en) * | 2013-03-21 | 2013-10-16 | 天津哈德韦尔自控技术有限公司 | Low-flow liquid flow measurement device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335684A (en) * | 2013-06-14 | 2013-10-02 | 鞍钢集团矿业公司 | Portable ore pulp flowmeter and method for measuring ore pulp flow |
| CN103471676A (en) * | 2013-09-13 | 2013-12-25 | 华北石油通信公司 | Unstable flow liquid online flow measuring device |
| CN105891346A (en) * | 2016-03-03 | 2016-08-24 | 青岛鲁海光电科技有限公司 | Ion chromatography system for controlling double-conductance-cell series technology through virtual instrument |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Hardware Automation Technology Co.,Ltd. Document name: Notification that Application Deemed to be Withdrawn |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130612 |