CN201262563Y - Weighing micron size micro-miniature liquid-level meter - Google Patents
Weighing micron size micro-miniature liquid-level meter Download PDFInfo
- Publication number
- CN201262563Y CN201262563Y CNU200720182840XU CN200720182840U CN201262563Y CN 201262563 Y CN201262563 Y CN 201262563Y CN U200720182840X U CNU200720182840X U CN U200720182840XU CN 200720182840 U CN200720182840 U CN 200720182840U CN 201262563 Y CN201262563 Y CN 201262563Y
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- China
- Prior art keywords
- liquid level
- gas phase
- liquid
- level meter
- phase interface
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- Expired - Fee Related
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Abstract
The utility model relates to a weighing-typed micron-sized micro liquid level meter, which consists of a support, a cantilever weighing sensor, and a sampling tube, a gas phase coiling hose and a liquid phase coiling hose which are suspended below the weighing sensor; the liquid level meter is characterized in that the support is arranged at the top of a tower tank, the cantilever weighing sensor is arranged below the support, the sampling tube is suspended below the cantilever weighing sensor, the gas phase coiling hose is connected with a gas phase interface of the upper liquid level of the tower tank; the liquid phase coiling hose is connected with the liquid phase interface of the lower liquid level of the tower tank, the distance between the gas phase interface and the liquid phase interface is equal to measuring range, and the height of the liquid level is obtained by measuring the weight of the sampling tube. The measuring range of the liquid level meter is generally smaller than 10 millimeters and the precision reaches micron. The liquid level meter effectively eliminates the impact of the surface tension of the interface tube on micro-weight and can be widely used in fine chemical production process.
Description
Technical field
The utility model is provided with a kind of high-precision Weighing type micron order microminiature liquid level gauge.
Background technology
Storage tank adopts the weight method measuring liquid level, normally storage tank integral body is weighed and measures, because the storage tank overall weight is big and the weighing instrument systemic resolution is limited, measuring accuracy is restricted, and can't reach micron order.Also the liquid level of some tower can't be weighed with integral body and be measured.CN92220579.5 utility model " gravity type fluid level transmitter " can be applicable to abominable testing environments such as high temperature, high pressure, vacuum, corrosion; Also can replace gamma-rays liquid level gauge liquid level.It becomes the variation of gravity pipe gravity with the variation of liquid level, and abominable testing environment is isolated with the gravity pipe owing to adopted the liquid gravity pipe, gravity is detected carry out in common environment.Because its liquid phase interface and gas phase mouth piece adopt straight tube, and the reason of mouth piece surface tension and expansive force, it is big to measure small weight error, is not suitable for small level gauging.In sum, in the fine chemistry industry production run, need the micron order variation of tower jar liquid level is measured, and also do not address this problem preferably at present.
Summary of the invention
At the problems referred to above, the purpose of this utility model provide a kind of can be in the fine chemistry industry production run to the meticulous measurement of carrying out of tower jar liquid level, range is generally less than 10 millimeters, precision reaches micron-sized Weighing type micron order microminiature liquid level gauge.
For achieving the above object, the utility model is taked following technical scheme: a kind of Weighing type micron order microminiature liquid level gauge, form by hanging stopple coupon, gas phase Coiled hose and liquid phase Coiled hose under support, semi-girder LOAD CELLS, the LOAD CELLS; It is characterized in that: in the tower tank top described support is set, described semi-girder LOAD CELLS is installed under the described support, hangs described stopple coupon under the described semi-girder LOAD CELLS, and described gas phase Coiled hose connects liquid level gas phase interface on the tower jar; Described liquid phase Coiled hose connects liquid level liquid phase interface under the tower jar, and distance equals to measure range between gas phase interface and the liquid phase interface, draws the height of liquid level by the weight of measuring stopple coupon.
The beneficial effects of the utility model are: make full use of present weighing measurement sensor and accuracy of instrument more and more higher opportunity, utilize the hose disk solderless wrapped connection to go out to stopple coupon, effectively eliminated of the influence of mouth piece surface tension, therefore can make measuring accuracy reach micron order micro weight.
Description of drawings
Fig. 1 is the utility model structural representation
Description of reference numerals:
Tower jar (1); Tank deck support (2); Semi-girder LOAD CELLS (3); Stopple coupon (4); Gas phase Coiled hose (5); Liquid phase Coiled hose (6).
Embodiment
Shown in accompanying drawing 1, the top of tower jar 1 is provided with support 2, and semi-girder LOAD CELLS 3 is installed in support 2 times, and LOAD CELLS hangs stopple coupon 43 times.Gas phase Coiled hose 5 connects liquid level gas phase interface on the tower jar 1; Liquid phase Coiled hose 6 connects liquid level liquid phase interface under the tower jar, and distance equals to measure range between gas phase interface and the liquid phase interface.
With 50 millimeters stopple coupons 4 of range 10 mm dias, LOAD CELLS 3 full scales 50 grams, 1/10000 precision, resolving power 0.005 gram is example, obtains:
Liquid level change rate=(0.005/ (25*25*3.14*10/1000)) * 10=0.0025mm
Can measure 2.5 microns liquid level change.
Overstriking stopple coupon 4 diameters can be measured the liquid level change about 1 micron to 75 millimeter.
The tension force of gas phase Coiled hose 6 is bigger to the measuring accuracy influence, and the small hose of employing particularly soft and horizontal plate are around a circle, through experimental results show that and can effectively eliminating the effects of the act.
LOAD CELLS 3 is received the weighting display instrument conversion by connecting wire and is demonstrated liquid level.
Claims (1)
1, a kind of Weighing type micron order microminiature liquid level gauge is formed by hanging stopple coupon, gas phase Coiled hose and liquid phase Coiled hose under support, semi-girder LOAD CELLS, the LOAD CELLS; It is characterized in that: in the tower tank top described support is set, described semi-girder LOAD CELLS is installed under the described support, hangs described stopple coupon under the described semi-girder LOAD CELLS, and described gas phase Coiled hose connects liquid level gas phase interface on the tower jar; Described liquid phase Coiled hose connects liquid level liquid phase interface under the tower jar, and distance equals to measure range between gas phase interface and the liquid phase interface, draws the height of liquid level by the weight of measuring stopple coupon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720182840XU CN201262563Y (en) | 2007-10-26 | 2007-10-26 | Weighing micron size micro-miniature liquid-level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720182840XU CN201262563Y (en) | 2007-10-26 | 2007-10-26 | Weighing micron size micro-miniature liquid-level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262563Y true CN201262563Y (en) | 2009-06-24 |
Family
ID=40809039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720182840XU Expired - Fee Related CN201262563Y (en) | 2007-10-26 | 2007-10-26 | Weighing micron size micro-miniature liquid-level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262563Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252730A (en) * | 2011-06-10 | 2011-11-23 | 厦门大学 | Software tank liquid level measuring instrument and method |
| CN105021255A (en) * | 2015-08-07 | 2015-11-04 | 刘洪仁 | Medium interface measuring system and method |
-
2007
- 2007-10-26 CN CNU200720182840XU patent/CN201262563Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252730A (en) * | 2011-06-10 | 2011-11-23 | 厦门大学 | Software tank liquid level measuring instrument and method |
| CN102252730B (en) * | 2011-06-10 | 2013-03-27 | 厦门大学 | Software tank liquid level measuring instrument and method |
| CN105021255A (en) * | 2015-08-07 | 2015-11-04 | 刘洪仁 | Medium interface measuring system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20151026 |
|
| EXPY | Termination of patent right or utility model |