CN201434813Y - Liquid osmotic pressure measuring device with adjustable seeding time limit - Google Patents
Liquid osmotic pressure measuring device with adjustable seeding time limit Download PDFInfo
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- CN201434813Y CN201434813Y CN2009200763784U CN200920076378U CN201434813Y CN 201434813 Y CN201434813 Y CN 201434813Y CN 2009200763784 U CN2009200763784 U CN 2009200763784U CN 200920076378 U CN200920076378 U CN 200920076378U CN 201434813 Y CN201434813 Y CN 201434813Y
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- seeding time
- time limit
- osmotic pressure
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Abstract
The utility model belongs to the field of measuring technique, relates to a liquid osmotic pressure measuring device, in particular to a liquid osmotic pressure measuring device with adjustable seeding time limit, and aims to solve the technical problem of a conventional liquid osmotic pressure measuring device that measurement is failed due to too short seeding time while measuring a high-viscosity solution. By adopting the technical scheme in which a time limiting electronic device used for setting seeding time limit is additionally arranged in an oscillation generation and control unit (1),the osmotic pressure measuring device designed by the utility model is provided with an enlarged sample measuring range.
Description
Technical field
The utility model belongs to the determination techniques field, relates to a kind of liquid osmometry device, is specifically related to a kind of osmometry device of adjusting the seeding time limit.
Background technology
It is the mensuration that is used for liquid osmotic pressure or osmol concentration that freezing point osmotic pressure is measured, and presses the physical chemistry classical theory, and all genus aqueous solution all have vapour pressure reduction, the elevation of boiling point, freezing point descends and produce these four kinds of osmotic pressure " according to the number characteristic ".So-called " according to the number characteristic " is promptly irrelevant with the kind and the grain size of solution, and only depends on the numbers of particles of solute.Therefore just can try to achieve the osmotic pressure of this solution indirectly by the freezing point temperature of measuring detected solution, its theoretical foundation is the Raoul freezing point principle of one of physical chemistry solution theory: any solution, if the total number of particles of the solute that its unit volume is dissolved is identical, cause that then the numerical value of freezing point of solution decline is also identical.Experiment shows, any non-electrolytic solution of 1 mole is dissolved in 1 kg water, then makes the freezing point of water drop to-1.857 ℃ by 0 ℃, therefore, desire to ask the numbers of particles of contained solute in a certain solution as long as survey its freezing point drop-out value, can be by following formula result of calculation:
Os＝Δt/1.857
Os is called the mass osmosis volumetric molar concentration, and Δ t is the freezing point drop-out value, and 1.857 is the molar depression constant of water.Solution from liquid state to solid-state cooling change procedure, the phenomenon of not frozen though temperature has met and exceeded this solution freezing temperature is referred to as " supercooling phenomenon ".In concrete measuring process, when liquid reaches supercooling temperature, the rod that shakes that plays adductive crystallization in the determinator produces and shakes by force, make solution discharge latent heat and phase transformation, shake the rod duration of oscillation and the successful test of solution bigger relation is arranged, existing determinator, its seeding time is short and all be invariable, and normal generation is not frozen and is made test crash in the test of high viscosity solution.
Summary of the invention
Technical problem to be solved in the utility model be existing liquid osmometry device when measuring high viscosity solution since the seeding time too short-range missile cause the problem of measuring failure, and by providing a kind of osmometry device of adjusting the seeding time limit to solve the problems referred to above.
The utility model solves the problems of the technologies described above by the following technical programs:
A kind of osmometry device of adjusting the seeding time limit, at least comprise that vibration takes place and control assembly, temperature sensor, rod shakes, coupon, the refrigeration groove, described refrigeration groove is positioned at vibration generation and control assembly below, be provided with shake rod and temperature sensor between refrigeration groove and vibration generation and the control assembly, the lower end of the temp probe of described temperature sensor and the rod that shakes is positioned at the position of coupon near the middle and lower part, the upper end of the described rod that shakes takes place with vibration and vibration place of control assembly is connected, in the time can adjusting the osmometry device work in seeding time limit, the major part that contains the coupon of testing liquid is immersed in the interior non freezing solution of refrigeration groove all the time, and the key of the technical program is to be provided with in described vibration generation and the control assembly the time qualified electron device that is used to set the seeding time limit.
This structure of the utility model design, can carry out prior setting to the seeding time limit, height according to detected solution viscosity, short by the seeding time that viscosity is low, the long principle of seeding time that viscosity is high is set the seeding time, so just can avoid existing determinator because of the too short result to the failure of high viscosity liquid osmometry who causes of seeding time.
In order to make the designed a kind of osmometry device of adjusting the seeding time limit of the utility model, be suitable for measure wider, the time range that time qualified electron device limited under vibration generation and the control assembly can be set in 1-9 between second.
Description of drawings
Fig. 1 is a kind of structural representation of adjusting the osmometry device in seeding time limit.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further specified:
A kind of osmometry device of adjusting the seeding time limit comprising vibrate generation and control assembly 1, temperature sensor 3, the rod 2 that shakes, coupon 4, refrigeration groove 5, non freezing solution 6.Described refrigeration groove 5 is positioned at vibration and takes place and control assembly 1 below, be provided with shake rod 2 and temperature sensor 3 between refrigeration groove 5 and vibration generation and the control assembly 1, the lower end of the temp probe of described temperature sensor 3 and the rod 2 that shakes is positioned at the position of coupon 4 near the middle and lower part, the upper end of the described rod 2 that shakes takes place with vibration and vibration place 7 of control assembly 1 is connected, the osmometry device that can adjust the seeding time limit also comprises holder 8, vibration takes place and control assembly 1 lower end just is fixed on the holder 8, holder 8 is provided with through hole, makes to shake by force and is transmitted thereby the rod 2 that shakes passes through hole on the holder 8.
After the determinator energized, refrigeration groove 5 will be regulated non freezing solution 6 temperature to-9 ℃ and constant.Before measuring beginning, should just carry out the setting of seeding time according to the viscosity of detected solution earlier, by the low seeding time weak point of viscosity, the long setting of the seeding time that viscosity is high to the time qualified electron device under vibration generation and the control assembly 1.Add 0.5 milliliter of normal temperature testing sample solution in coupon 4, this moment, the temp probe of temperature sensor 3 all immersed in the sample of solution to be measured with the lower end of the rod 2 that shakes.In whole test process subsequently, the relative position of the lower end of the temp probe of coupon 4, testing sample solution, temperature sensor 3 and the rod 2 that shakes remains constant.Then with coupon 4 most of immersions in the non freezing solution 6 that is in-9 ℃.The testing sample solution temperature constantly descends thereupon in the coupon 4, when its temperature reaches the freezing point, does not freeze owing to the cold effect of mistake of solution.When the testing sample solution temperature continue to descend when reaching the supercooling temperature (6 ℃) of setting, take place and control assembly 1 produces the rod 2 that shakes to shake by force by temperature sensor 3 control vibrations, make solution to be measured discharge latent heat and become solid-stately mutually, and progressively reach measurement point.
The high viscosity solution of the utility model indication be meant kinetic viscosity at 100000mpa.S with interior solution.
Should be appreciated that those skilled in the art can make various changes or modifications the utility model after having read above-mentioned teachings of the present utility model, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (2)
1. the osmometry device that can adjust the seeding time limit, at least comprise that vibration takes place and control assembly (1), temperature sensor (3), rod (2) shakes, coupon (4), refrigeration groove (5), described refrigeration groove (5) is positioned at vibration generation and control assembly (1) below, be provided with rod that shakes (2) and temperature sensor (3) between refrigeration groove (5) and vibration generation and the control assembly (1), the temp probe of described temperature sensor (3) and rod (2) lower end that shakes are positioned at the position of coupon (4) near the middle and lower part, the upper end of the described rod that shakes (2) takes place with vibration and vibration place (7) of control assembly (1) is connected, in the time can adjusting the osmometry device work in seeding time limit, the major part that contains the coupon (4) of testing liquid is immersed in the interior non freezing solution (6) of refrigeration groove (5) all the time, it is characterized in that described vibration generation and control assembly (1) are provided with the time qualified electron device that is used to set the seeding time limit.
2. a kind of osmometry device of adjusting the seeding time limit according to claim 1 is characterized in that the seeding time range that described time qualified electron device limits is 1-9 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200763784U CN201434813Y (en) | 2009-06-16 | 2009-06-16 | Liquid osmotic pressure measuring device with adjustable seeding time limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200763784U CN201434813Y (en) | 2009-06-16 | 2009-06-16 | Liquid osmotic pressure measuring device with adjustable seeding time limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434813Y true CN201434813Y (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200763784U Expired - Fee Related CN201434813Y (en) | 2009-06-16 | 2009-06-16 | Liquid osmotic pressure measuring device with adjustable seeding time limit |
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| CN (1) | CN201434813Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207477A (en) * | 2011-03-15 | 2011-10-05 | 天津市天大天发科技有限公司 | Refrigeration assembly of integrated oscillatory osmometer |
| CN106483047A (en) * | 2015-08-26 | 2017-03-08 | 上海依达医疗器械有限公司 | A kind of non-freezing solution box assembly of freezing point osmotic pressure analyzer |
| CN113563849A (en) * | 2021-07-14 | 2021-10-29 | 北京航天发射技术研究所 | Phase change device and method for heating medium by phase change device |
-
2009
- 2009-06-16 CN CN2009200763784U patent/CN201434813Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207477A (en) * | 2011-03-15 | 2011-10-05 | 天津市天大天发科技有限公司 | Refrigeration assembly of integrated oscillatory osmometer |
| CN102207477B (en) * | 2011-03-15 | 2013-03-13 | 天津市天大天发科技有限公司 | Refrigeration assembly of integrated oscillatory osmometer |
| CN106483047A (en) * | 2015-08-26 | 2017-03-08 | 上海依达医疗器械有限公司 | A kind of non-freezing solution box assembly of freezing point osmotic pressure analyzer |
| CN113563849A (en) * | 2021-07-14 | 2021-10-29 | 北京航天发射技术研究所 | Phase change device and method for heating medium by phase change device |
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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: 20100331 Termination date: 20150616 |
|
| EXPY | Termination of patent right or utility model |