CN2273858Y - U-shape capillary instrument for measuring viscosity - Google Patents
U-shape capillary instrument for measuring viscosity Download PDFInfo
- Publication number
- CN2273858Y CN2273858Y CN 96231470 CN96231470U CN2273858Y CN 2273858 Y CN2273858 Y CN 2273858Y CN 96231470 CN96231470 CN 96231470 CN 96231470 U CN96231470 U CN 96231470U CN 2273858 Y CN2273858 Y CN 2273858Y
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- CN
- China
- Prior art keywords
- measuring instrument
- peristaltic pump
- viscosity measuring
- pump
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a U-shaped capillary viscosity measuring instrument, which is a liquid apparent viscosity measuring instrument. The utility model comprises a capillary tube, an electromagnetic valve and a connection pipeline. The utility model is characterized in that the structure of the capillary tube is in a U shape and is composed of a left small chamber, a right small chamber and the capillary tube; the left small and the right small chambers are communicated through the capillary tube. The pipeline is provided with a peristaltic pump and a pressure sensor. The upper end of the left small chamber is provided with an outlet which is communicated with the pressure sensor and the electromagnetic valve through a three-way pipe and is connected with the peristaltic pump through the connection pipeline. The right small chamber is provided with three outlets which are respectively communicated with three electromagnetic valves and are respectively communicated with a sample introduction tube or a sample discharge tube, a flushing tube, the peristaltic pump and a pumping and exhausting pipeline in the right small chamber through the three electromagnetic valves.
Description
What the utility model U type capillary viscosity measuring instrument related to is a kind of liquid apparent viscosity measuring instrument.
At present, liquid apparent viscosity measuring instrument is broadly divided into two kinds, and a kind of is the capillary type viscosity apparatus, and another kind is the rotary viscosimeter instrument, and the higher complicated operation of rotary viscosimeter instrument cost, and easy cleaning not are difficult to popularize.So domestic mostly usefulness is capillary viscosimeter, and general capillary viscosimeter structure is simpler, the measurement data comparability is poor, measurement result is a specific viscosity, do not meet and international detect standard and be eliminated gradually, and in theory strict the measuring the apparent viscosity work is direct of the regeneration product L type apparent viscosity instrument that occurs in recent years, but aspect apparatus structure, have bigger limitation, performance structure fluctuation of service, and sample row suction cleaning can not robotization.
The purpose of this utility model is the weak point that exists at present liquid apparent viscosity measuring instrument, a kind of U type capillary viscosity measuring instrument is provided, have by left and right two cells and connection kapillary therebetween and form U type capillary portion, constitute pipeline portions by solenoid valve, peristaltic pump, connecting pipe, it is accurate to inhale sample, measurement, stock layout and cleaning full process automatization measurement result, the efficiency of measurement height.
U type capillary viscosity measuring instrument takes following scheme to realize: viscosity measuring instrument is by U type capillary portion, and pipeline portions constitutes.Capillary pipe structure is for for the U type, by about two cells and the kapillary that is communicated with therebetween form.Pipeline portions is by peristaltic pump, and connecting tube, threeway, solenoid valve, pressure transducer constitute.Cell bottom, a left side is communicated with by kapillary with right cell bottom, cell upper end, a left side has an outlet to connect pressure transducer and solenoid valve by three-way pipe, solenoid valve links to each other with peristaltic pump by connecting tube, right cell has three outlets to connect three solenoid valves respectively, solenoid valve is connected sample introduction or stock layout pipeline, flushing pipe respectively by pipeline, by peristaltic pump to pump drainage feed channel in the right cell.This structure and outlet configuration flow for the ease of automatic controlling liquid and design, wherein being communicated with left and right cell kapillary therebetween is that the key position of measuring requires strict, its geometric parameter will be protected and levy as far as possible little kinetic energy correction and do not hold benefit, so that the kinetic energy correction term can be ignored, guarantee laminar flow condition simultaneously.Pipeline portions can automatically be sampled by control section, work such as measurement, stock layout or flushing.
U type capillary viscosity measuring instrument, the viscosity meter that is different from other type, be characterized in the test body that constitutes by U type kapillary, can be by temperature control and Presentation Function, the switching of rotating of computer control peristaltic pump and solenoid valve, make sample in U type kapillary, experience flowing that flow velocity slowly changes, by to pressure in the system time dependent detection try to achieve apparent viscosity with sample under the shear rate.Inhale sample measurement, stock layout and clean full process automatization, measurement result is accurate, and the efficiency of measurement height can be widely used in fields such as medical science, biology, chemical industry, food, measures liquid apparent viscosity such as blood, beverage, oil plant.
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is a U type capillary viscosity measuring instrument structural representation.
Fig. 2 is a U type capillary viscosity measuring instrument peristaltic pump structural representation.
Fig. 3 is a U type capillary viscosity measuring instrument peristaltic pump structure vertical view.
Constitute by U type capillary portion, pipeline portions with reference to accompanying drawing 1,2,3U type capillary viscosity measuring instrument structure primary structure.Capillary pipe structure is the U type, has left cell (6), right cell (8), and kapillary (7) is communicated with therebetween.Pipeline portions is made of peristaltic pump (10), connecting tube, three-way pipe, solenoid valve (1), (2), (3), (4), (5) and pressure transducer (9).Connecting tube can adopt silicone tube.Peristaltic pump has pump impeller, by roller bearing (18), roller bearing clamping plate (17) constitute, pump impeller is connected on motor (11) axle, motor is the low-speed bidirectional reversible electric machine, pump impeller survey face is equipped with buffer gear and has buffering pressing plate (15), be coated with the axis of guide (14) on the buffering pressing plate, adopt fixed head fixed guide axle (14), buffer spring (13) is sleeved on the axis of guide (14), silicone tube (16) device is between pump impeller and buffering pressing plate (15), the pump impeller that the low-speed bidirectional reversible electric machine can rotating has roller bearing rotates, extrusion is contained in the silicone tube (16) between buffering pressing plate (15) and the pump impeller, pump impeller can make air be drawn into discharge when rotating, thereby inhales sample or stock layout.Can adopt control peristaltic pump (10) automatically sample to be injected right cell, to right cell (8) pressurization, sample injects left side cell (6) by kapillary (7), and the liquid level top seal air of left side cell is compressed.The logical atmosphere of right cell (8), sample is back to right cell (8) under the effect of driving pressure, shear rate changes from high to low continuously in the glass capillary (7), and in this process, pressure transducer (9) detects the pressure time changing value and sends into Computer Processing through A/D conversion, data.Calculate apparent viscosity number under the different shear rates by computing machine, and print result and draw shear rate one viscosity relationship curve.
With reference to accompanying drawing 1, right cell (8) has three outlets to connect three solenoid valves (1) respectively, (2), (3), be communicated with respectively: through solenoid valve (1) connecting pipe is sample introduction or nesting tube, through solenoid valve (2) connecting pipe is towards Xian Guandao, through solenoid valve (3) connecting pipe be by peristaltic pump (10) to right cell (8) in the pump drainage feed channel, there is an outlet to pass through silicone tube cut-in pressure sensor (9) in left cell (6) upper end by three-way pipe, solenoid valve (4), (5), (3) and peristaltic pump (10), this structure and outlet configuration design for the ease of automatic controlling liquid, wherein be communicated with a left side, right cell kapillary (7) therebetween is to measure key position, a left side, right cell and kapillary can adopt glassware.
Claims (4)
1, a kind of U type capillary viscosity measuring instrument has kapillary, solenoid valve, connecting tube, it is characterized in that capillary pipe structure is the U type, by about two cells and the kapillary that is communicated with therebetween form, pipeline portions also is equipped with peristaltic pump, pressure transducer.
2, U type capillary viscosity measuring instrument according to claim 1 is characterized in that left cell upper end has an outlet to be connected by three-way pipe, and pressure transducer and solenoid valve link to each other with peristaltic pump by connecting tube.
3, U type capillary viscosity measuring instrument according to claim 1 is characterized in that right cell has three outlets to connect three solenoid valves respectively, through solenoid valve be communicated with respectively sample introduction or nesting tube, flushing pipe, peristaltic pump to right cell in the pump drainage feed channel.
4, U type capillary viscosity measuring instrument according to claim 1, it is characterized in that peristaltic pump has pump impeller, constitute by roller bearing, roller bearing clamping plate, pump impeller is connected on the motor shaft, and buffer gear is equipped with in the pump impeller side, has the buffering pressing plate, be coated with the axis of guide on the buffering pressing plate, adopt fixed head fixed guide axle, buffer spring is sleeved on the axis of guide, and the silicone tube device is between pump impeller and buffering pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96231470 CN2273858Y (en) | 1996-03-21 | 1996-03-21 | U-shape capillary instrument for measuring viscosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96231470 CN2273858Y (en) | 1996-03-21 | 1996-03-21 | U-shape capillary instrument for measuring viscosity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2273858Y true CN2273858Y (en) | 1998-02-04 |
Family
ID=33908645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96231470 Expired - Fee Related CN2273858Y (en) | 1996-03-21 | 1996-03-21 | U-shape capillary instrument for measuring viscosity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2273858Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104662405A (en) * | 2013-01-07 | 2015-05-27 | 弗洛泊威尔技术公司 | System and method for generating a change in pressure proportional to fluid viscocity |
| CN108469397A (en) * | 2018-04-20 | 2018-08-31 | 西南科技大学 | A kind of micro-scale polymer fused extrusion viscous dissipation differential measuring method |
| CN115032117A (en) * | 2022-06-16 | 2022-09-09 | 江苏理工学院 | Cooling medium viscosity performance testing device and working method thereof |
-
1996
- 1996-03-21 CN CN 96231470 patent/CN2273858Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104662405A (en) * | 2013-01-07 | 2015-05-27 | 弗洛泊威尔技术公司 | System and method for generating a change in pressure proportional to fluid viscocity |
| CN108469397A (en) * | 2018-04-20 | 2018-08-31 | 西南科技大学 | A kind of micro-scale polymer fused extrusion viscous dissipation differential measuring method |
| CN115032117A (en) * | 2022-06-16 | 2022-09-09 | 江苏理工学院 | Cooling medium viscosity performance testing device and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |