CN209673594U - A kind of bushing type constant temperature Ubbelohde viscometer - Google Patents
A kind of bushing type constant temperature Ubbelohde viscometer Download PDFInfo
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- CN209673594U CN209673594U CN201821956684.2U CN201821956684U CN209673594U CN 209673594 U CN209673594 U CN 209673594U CN 201821956684 U CN201821956684 U CN 201821956684U CN 209673594 U CN209673594 U CN 209673594U
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- heat insulation
- ubbelohde viscometer
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Abstract
The utility model relates to test chemical instrument fields, specifically, relate to a kind of bushing type constant temperature Ubbelohde viscometer, including liquid filling tube, supervisor, branch pipe, ball A, ball B and ball C, the liquid filling tube, the supervisor, the branch pipe, ball A, ball B and ball C outer cover be equipped with heat insulation trough, the heat insulation trough side wall upper part offers water outlet, and the bottom of the water outlet is higher than the top of the ball C；The heat insulation trough lower part offers water inlet；Heat insulation trough in the utility model, guarantees the external temperature stability of bushing type constant temperature Ubbelohde viscometer described in test process, while simplifying test operation step and making the temperature of external water-bath adjustable easily；The bushing type constant temperature Ubbelohde viscometer have the advantages that design rationally, bath temperature is adjustable, good constant-temperature effect, to save water, measuring accuracy high.
Description
Technical field
The utility model relates to test chemical instrument fields, specifically, relate to a kind of bushing type constant temperature Ubbelohde viscosity
Meter.
Background technique
Ubbelohde viscometer is mainly used for measuring the kinematic viscosity of liquid, is a kind of capillary viscometer of gravity-type, is base
It is designed in the principle of relative measurement method, namely viscous to measure the movement of liquid according to delivery time of the liquid in capillary
Degree, compared with other gravity-type viscosimeters, it belongs to suspension liquid column type viscosimeter.Existing Ubbelohde viscometer is by liquid filling tube, supervisor
Form, be loaded from top, top drain with branch pipe, due to being influenced by liquid level, that there are the accuracys of measurement is poor, sampling not just
Just, testing tube not easy cleaning the disadvantages of, and in constant temperature using large-scale tank, water temperature rapid heat dissipation in sink, above and below sink
Liquid level temperature difference is larger, not only waste of resource and constant temperature effect is poor.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
The purpose of this utility model be in view of the deficiencies of the prior art, thus provide a kind of design science, good constant-temperature effect,
The small bushing type constant temperature Ubbelohde viscometer of test result error.
To achieve the goals above, the technical scheme adopted by the utility model is a kind of bushing type constant temperature Ubbelohde viscosity
Meter, including liquid filling tube, supervisor, branch pipe, ball A, ball B and ball C, the liquid filling tube, the supervisor, the branch pipe, ball A, ball B
It is equipped with heat insulation trough with the outer cover of ball C, the heat insulation trough side wall upper part offers water outlet, the bottom of the water outlet
Higher than the top of the ball C；The heat insulation trough lower part offers water inlet；The water outlet and the water inlet are by setting
It sets the water circulating pump connection outside the heat insulation trough and constitutes water-flow circuit, be provided with temperature control on the water-flow circuit
Device processed.
Based on above-mentioned, the liquid filling tube and supervisor's bottom junctions are provided with tapping branch pipe, on the tapping branch pipe
It is provided with bleeder valve.
Based on above-mentioned, the heat preservation bottom portion corresponds to the tapping branch pipe and offers valve hole, and the bleeder valve setting exists
The outside of the valve hole.
Based on above-mentioned, rubber sheet gasketing is additionally provided in the valve hole.
Based on above-mentioned, the water inlet and the water outlet are separately positioned on the opposite side of the heat insulation trough.
The utility model has substantive features and progress compared with the prior art, specifically, keeps the temperature in the utility model
Sink, guarantees the external temperature stability of bushing type constant temperature Ubbelohde viscometer described in test process, while simplifying test behaviour
Make step and makes the temperature of external water-bath adjustable easily；Further, it is arranged between the liquid filling tube and the supervisor
Bleeder valve, so that easily can release the test fluid in described sleeve pipe formula constant temperature Ubbelohde viscometer after test.The casing
Formula constant temperature Ubbelohde viscometer have design rationally, bath temperature is adjustable, good constant-temperature effect, saves high excellent of water, measuring accuracy
Point.
Detailed description of the invention
Fig. 1 is bushing type constant temperature Ubbelohde viscometer structural schematic diagram provided by the utility model.
In figure: 1, liquid filling tube；2, it is responsible for；3, branch pipe；4, ball A；5, ball B；6, ball C；7, heat insulation trough；71, water inlet；
72, water outlet；73, valve hole；8, tapping branch pipe；81, bleeder valve；9, rubber sheet gasketing；10, water circulating pump；11, temperature control
Device processed.
Specific embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
The present embodiment provides a kind of bushing type constant temperature Ubbelohde viscometers, as shown in Figure 1, it includes liquid filling tube 1, supervisor 2, branch
Pipe 3, ball A 4, ball B 5 and ball C 6.External temperature in order to guarantee the Ubbelohde viscometer of bushing type constant temperature described in test process is steady
It is qualitative in the liquid filling tube 1, the supervisor 2, the branch pipe 3, ball A 4, ball B 5 and ball C 6 outer cover be equipped with heat insulation trough
7。
For short form test operating procedure, 7 side wall upper part of heat insulation trough offers water outlet 72, the water outlet 72
Bottom be higher than the ball C6 top；7 lower sidewall of heat insulation trough offers water inlet 71.
In order to preferably realize the water temperature having the same of the different parts in the heat insulation trough 7, the water outlet
72, which pass through the water circulating pump 10 being arranged in outside the heat insulation trough 7 with the water inlet 71, is connected to composition water-flow circuit, institute
It states and is provided with temperature controller 11 on water-flow circuit.
Further for the ease of test operation and beauty, the water inlet 71 is separately positioned on institute with the water outlet 72
State the opposite side of heat insulation trough 7.
Meanwhile releasing the test fluid in described sleeve pipe formula constant temperature Ubbelohde viscometer after testing for convenience, it is described
Liquid filling tube 1 and 2 bottom junctions of the supervisor are provided with tapping branch pipe 8, are provided with bleeder valve 81 on the tapping branch pipe 8.Institute
It states 7 bottom of heat insulation trough and corresponds to the tapping branch pipe 8 and offer valve hole 73, the bleeder valve 81 is arranged in the valve hole 73
Outside.Meanwhile the leakproofness in order to guarantee the heat insulation trough 7, rubber sheet gasketing is additionally provided in the valve hole 73
9。
Described sleeve pipe formula constant temperature Ubbelohde viscometer is when to sample test provided by the present embodiment, concrete operation step
Are as follows:
Certain density solution to be measured is made with specific solvent in sample to be tested dissolution first, in accordance with regulation, is hung down with No. 3
Molten glass funnel filtration, discards primary filtrate and obtains subsequent filtrate.
Then take the subsequent filtrate of the liquor capacity not less than 10 mL along clean, dry described sleeve pipe formula constant temperature Ubbelohde
1 inner wall of the liquid filling tube of viscosimeter is injected into the ball B, and passes through the water circulating pump 10 and the temperature controller
11, the warm water that temperature is 25 ± 0.05 DEG C is injected into the heat insulation trough 7 from the water inlet 71, and pass through the water outlet
72 make the warm water in the heat insulation trough 7 be in circulation, static to place 15 minutes.
Secondly, the sebific duct of the supervisor 3 is clamped, described in for an emulsion tube is respectively connect on the supervisor 3 and the branch pipe 2
Be evacuated outward at branch pipe 2, the liquid level of the solution to be measured made to be slowly increasing to the middle part of the ball C 6, then first open described in
Supervisor 3, then the branch pipe 2 is opened, so that the liquid level of the solution to be measured is fallen naturally in supervisor pipe, is accurately remembered with stopwatch
Liquid level is recorded from measurement line m1Drop to measurement line m2The delivery time at place；Repeat said determination step twice, it is ensured that measured value twice
Difference must not exceed 0.1 second, and average value twice is taken to be denoted as T for the delivery time of test liquid.
Finally, carrying out viscosity test, test to specific solvent used in the sample to be tested is dissolved according to above-mentioned steps
As a result it is denoted as T0；The formula of estimated performance viscosity number calculates the inherent viscosity of the sample to be tested according to the following formula:
Inherent viscosity=Ln η/C, η is T and T in formula0Ratio, C be solution to be measured concentration.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (5)
1. a kind of bushing type constant temperature Ubbelohde viscometer, which is characterized in that including liquid filling tube, supervisor, branch pipe, ball A, ball B and ball C
, the liquid filling tube, the supervisor, the branch pipe, ball A, ball B and ball C outer cover be equipped with heat insulation trough, the heat preservation water
Groove sidewall top offers water outlet, and the bottom of the water outlet is higher than the top of the ball C；It opens the heat insulation trough lower part
Equipped with water inlet；The water outlet passes through the water circulating pump being arranged in outside the heat insulation trough with the water inlet and is connected to composition
Water-flow circuit is provided with temperature controller on the water-flow circuit.
2. a kind of bushing type constant temperature Ubbelohde viscometer according to claim 1, which is characterized in that the liquid filling tube and described
Supervisor's bottom junctions are provided with tapping branch pipe, are provided with bleeder valve on the tapping branch pipe.
3. a kind of bushing type constant temperature Ubbelohde viscometer according to claim 2, which is characterized in that the heat preservation bottom portion pair
The tapping branch pipe is answered to offer valve hole, the outside of the valve hole is arranged in the bleeder valve.
4. a kind of bushing type constant temperature Ubbelohde viscometer according to claim 3, which is characterized in that also set in the valve hole
It is equipped with rubber sheet gasketing.
5. a kind of bushing type constant temperature Ubbelohde viscometer according to claim 1, which is characterized in that the water inlet with it is described
Water outlet is separately positioned on the opposite side of the heat insulation trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821956684.2U CN209673594U (en) | 2018-11-26 | 2018-11-26 | A kind of bushing type constant temperature Ubbelohde viscometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821956684.2U CN209673594U (en) | 2018-11-26 | 2018-11-26 | A kind of bushing type constant temperature Ubbelohde viscometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209673594U true CN209673594U (en) | 2019-11-22 |
Family
ID=68561470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821956684.2U Active CN209673594U (en) | 2018-11-26 | 2018-11-26 | A kind of bushing type constant temperature Ubbelohde viscometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209673594U (en) |
-
2018
- 2018-11-26 CN CN201821956684.2U patent/CN209673594U/en active Active
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