CN206515271U - The ice bath device tested for kryoscopy - Google Patents
The ice bath device tested for kryoscopy Download PDFInfo
- Publication number
- CN206515271U CN206515271U CN201720151196.3U CN201720151196U CN206515271U CN 206515271 U CN206515271 U CN 206515271U CN 201720151196 U CN201720151196 U CN 201720151196U CN 206515271 U CN206515271 U CN 206515271U
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- pipe
- ice bath
- bath groove
- casing air
- measure
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Abstract
The ice bath device of the present utility model tested for kryoscopy, including ice bath groove, determine pipe, insertion determines the measure pipe stirring rod in pipe, the ice bath groove stirring rod inserted in ice bath groove, it is inserted in and determines the Beckman thermometer in pipe and the mercurial thermometer for measuring ice bath temperature, the upper end of ice bath groove is provided with ice bath groove upper cap, ice bath groove upper cap is provided with Boiling tube hole and lab scale pore, Boiling tube is inserted with casing air in hole, casing air upper end is provided with casing air plug, pipe is determined to be inserted in casing air through casing air plug, pipe upper end is determined provided with lid on measure pipe, determine and be covered with Beckman thermometer and up and down manual stirring rod jack on pipe, determine pipe and be outwards communicated with the acclivitous branch pipe that feeds intake, branch pipe top feed intake provided with the manifold plug for being used to seal the branch pipe that feeds intake.The utility model easily can add crystal seed into sample, while the heat exchange of outside air and sample is reduced, influence of the reduction extraneous factor to experiment.
Description
Technical field
The utility model belongs to thermoanalysis technology field, is related to a kind of test apparatus, more particularly to a kind of for freezing point
The ice bath device of determination experiment.
Background technology
Freezing point is the important physical and chemical parameter of material, and the freezing point for determining material has great significance.Freezing point is reduced
Method determines the molecular weight of material, is one of the classical way that molecular weight of material is determined.Kryoscopy experiment needs to use ice bath
Device, traditional ice bath device is that mixture of ice and water is put into ice bath groove, temperature is substantially controlled near zero, measurement
When, Boiling tube is put into ice bath, the measure pipe for installing detected solution is put into Boiling tube.
According to experimental principle, one of key of this experiment success or failure is the degree of supercooling for controlling solution.Surfusion is due to
Solvent in solution is when temperature drop is to freezing point, without solvent solidification, and cenotype hardly possible generates and reached the phenomenon of supercooling, reason
It is typically due to the too fast or mixing speed of cooling improper caused.If supercooling is serious, the maximum temperature of temperature recovery can be than original
The inclined bottom of preliminary survey solution freezing point.Abolishing surfusion can be by taking the method for adding crystal seed or controlling mixing speed.
Taken out when adding crystal seed into measure pipe, it is necessary to which the plug on pipe will be determined, outside air enters survey simultaneously
Contacted in fixed tube with solution, solution will accelerate with extraneous heat exchange, influence the temperature of solution, once temperature change mistake
Greatly, solvent solidification may be caused not formed, ultimately result in and repeat, not only lost time but also influenceed efficiency.
Accordingly, it would be desirable to design a kind of ice bath device, this ice bath device should be able to determine add crystal seed in pipe when,
The influence of outer bound pair solution temperature can be reduced, to ensure being smoothed out for experiment.
Utility model content
The utility model is used for what kryoscopy was tested to solve weak point of the prior art there is provided a kind of
Ice bath device, this ice bath device easily can add crystal seed into sample, while reducing outside air and detected sample
The heat exchange of product, influence of the reduction extraneous factor to experiment.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：The ice tested for kryoscopy
Pipe stirring rod, the ice bath groove stirring inserted in ice bath groove are determined in bath apparatus, including ice bath groove, measure pipe, insertion measure pipe
Rod, the Beckman thermometer being inserted in measure pipe and the mercurial thermometer for measuring ice bath temperature, the ice bath groove
Upper end is provided with ice bath groove upper cap, and mercurial thermometer is inserted in ice bath groove through ice bath groove upper cap, and ice bath groove upper cap is provided with Boiling tube
Casing air is inserted with hole and the lab scale pore matched with measure pipe, Boiling tube hole, casing air upper end is provided with for close
The casing air plug of casing air is sealed, pipe is determined and is inserted in through casing air plug in casing air, the outer wall and sky of pipe is determined
Gap is provided between the inwall of gas bushing；The upper end of pipe is determined provided with lid on pipe is determined, Beckman thermometer, which is passed through, to be determined on pipe
Lid insertion is determined in pipe, and the bottom of ice bath groove stirring rod and measure pipe stirring rod is equipped with annular mixing part, determines pipe stirring rod
The annular mixing part spacer sleeve of bottom is located at the outside of Beckman thermometer, the annular mixing part interval of ice bath groove stirring rod bottom
It is sheathed on the outside of casing air and mercurial thermometer；The pipe that determines outwards is communicated with the acclivitous branch pipe that feeds intake, and feeds intake
Branch pipe is located at casing air plug and determines on pipe between lid, and the branch pipe top that feeds intake is provided with the manifold plug for being used for sealing the branch pipe that feeds intake.
Poke hole and sealing block are covered with the measure pipe, sealing block is fixedly connected in poke hole, determine pipe stirring
Rod is slidably connected through sealing block and with sealing block.
Using above-mentioned technical proposal, the utility model has the advantages that：
The effect of casing air is measure pipe is in a temperature than more uniform space, slows down rate of temperature fall, prevents
The generation of over-education phenomenon is subcooled.If without casing air, determining pipe and being inserted directly into ice bath groove, temperature drop is too fast, is difficult
Newly born phase is produced, strong surfusion is easily produced, solvent solidification can not be formed, and ultimately result in the failure of an experiment.
Compared to directly crystal seed is added to determining in pipe, connecing for outside air and sample can be reduced using the branch pipe that feeds intake
Touch, reduce sample and extraneous heat exchange, reduction experiment is influenceed by extraneous factor, and adds crystalline substance by the branch pipe that feeds intake
Plant and more facilitate, be not required to that pipe taking-up will be determined again, it is easy to operate, it is more efficient.
Determining pipe stirring rod can be slided up and down by sealing block in measure pipe, and sealing block can be prevented using measure stirring
Contact of the outside air with sample during rod, to reduce unnecessary heat exchange.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the partial enlarged drawing at A in the utility model Fig. 1.
Embodiment
As depicted in figs. 1 and 2, the ice bath device of the present utility model tested for kryoscopy, including ice bath groove 1,
Pipe 12, insertion is determined to determine the measure pipe stirring rod 9 in pipe 12, the ice bath groove stirring rod 6 in insertion ice bath groove 1, be inserted in survey
Beckman thermometer 10 in fixed tube 12 and the mercurial thermometer 16 for measuring the temperature of ice bath groove 1, the upper end of the ice bath groove 1
Provided with ice bath groove upper cap 5, mercurial thermometer 16 is inserted in ice bath groove 1 through ice bath groove upper cap 5, and ice bath groove upper cap 5 is provided with big examination
It is inserted with pore 14 and the lab scale pore 15 matched with measure pipe 12, Boiling tube hole 14 on casing air 2, casing air 2
End is provided with the casing air plug 13 for seal gas sleeve pipe 2, determines pipe 12 and is inserted in casing air 2 through casing air plug 13
It is interior, determine and gap is provided between the outer wall of pipe 12 and the inwall of casing air 2；
The upper end for determining pipe 12 is determined provided with the upper lid 11 of pipe, Beckman thermometer 10 is determined through the upper insertion of lid 11 of pipe is determined
In pipe 12, the bottom of ice bath groove stirring rod 6 and measure pipe stirring rod 9 is equipped with annular mixing part, determines the bottom of pipe stirring rod 9
Annular mixing part spacer sleeve is located at the outside of Beckman thermometer 10, the annular mixing part spacer sleeve of the bottom of ice bath groove stirring rod 6
Located at the outside of casing air 2 and mercurial thermometer 16；
The measure pipe 12 is outwards communicated with the acclivitous branch pipe 3 that feeds intake, and the branch pipe 3 that feeds intake is located at the He of casing air plug 13
Determine between the upper lid 11 of pipe, the top of branch pipe 3 that feeds intake is provided with the manifold plug 4 for being used for sealing the branch pipe 3 that feeds intake.
The upper lid 11 of pipe that determines is provided with poke hole 8 and sealing block 7, and sealing block 7 is fixedly connected in poke hole 8, is determined
Pipe stirring rod 9 is slidably connected through sealing block 7 and with sealing block 7.
During measurement, casing air 2 is put into ice bath groove 1 by Boiling tube hole 14, the measure of sample will be first installed
Pipe 12 is put into ice bath groove 1 by lab scale pore 15 and directly contacted with ice bath, makes the temperature drop of the sample in measure pipe 12
During to slightly above preliminary survey freezing point, pipe 12 will be determined rapidly and is taken out, dries, is inserted into casing air 2, casing air 2 is with surveying
There is one section of air insulated between fixed tube 12, retarding heat transmission and uniform temperature can be played a part of, prevent supercooling excessively existing
The generation of elephant, if without casing air 2, determining pipe 12 and being inserted directly into ice bath groove 1, determine the sample temperature in pipe 12
Decline is too fast, is not likely to produce Newly born phase, easily produces strong surfusion, and solvent solidification can not be formed, and ultimately result in experiment
Failure.
In temperature drop freezing point of solvent into solution, find there is no ice to separate out, it is necessary to measure in sample
Crystal seed is added in pipe 12, now, manifold plug 4 is removed, to dispensing crystal seed in pipe 12 is determined at the branch pipe 3 that feeds intake, is compared
The upper lid 11 of measure pipe is removed, crystal seed is delivered from the top of pipe 12 is determined, can so reduce contact of the outside air with sample,
Sample and extraneous heat exchange are reduced, reduction experiment is influenceed by extraneous factor.
Ice bath groove stirring rod 6 and measure pipe stirring rod 9 are respectively intended to carry out ice bath and measure in hand operated mixing ice bath groove 1
Sample in pipe 12.Determining pipe stirring rod 9 can be slided up and down by sealing block 7 in measure pipe 12, and sealing block 7 can be prevented
Contact of the outside air with sample when using measure stirring rod, to reduce unnecessary heat exchange, the sealing block 7
It is made from the flexible material such as elastomeric material, it is close so when measure pipe stirring rod 9 is slided up and down by sealing block 7
Envelope block 7 still is able to seal poke hole 8 well.
The present embodiment not makees any formal limitation, every foundation to shape of the present utility model, material, structure etc.
Any simple modification, equivalent variations and modification that technical spirit of the present utility model is made to above example, belong to this reality
With the protection domain of new technique scheme.
Claims (2)
1. the ice bath device tested for kryoscopy, including ice bath groove, measure manage, insert the measure pipe stirring determined in pipe
Rod, insertion ice bath groove in ice bath groove stirring rod, be inserted in determine pipe in Beckman thermometer and for measuring ice bath bath temperature
The mercurial thermometer of degree, it is characterised in that：The upper end of the ice bath groove is provided with ice bath groove upper cap, and mercurial thermometer passes through ice bath groove
In upper lid insertion ice bath groove, ice bath groove upper cap is provided with Boiling tube hole and with determining in the lab scale pore that pipe matches, Boiling tube hole
Casing air is inserted with, casing air upper end is provided with the casing air plug for seal gas sleeve pipe, determines pipe through air set
Pipe close is inserted in casing air, determines and gap is provided between the outer wall of pipe and the inwall of casing air；The upper end for determining pipe is set
Have and covered on measure pipe, Beckman thermometer is determined in pipe through lid insertion on measure pipe, ice bath groove stirring rod and measure pipe stirring
The bottom of rod is equipped with annular mixing part, determines the annular mixing part spacer sleeve of pipe stirring rod bottom located at Beckman thermometer
Outside, the annular mixing part spacer sleeve of ice bath groove stirring rod bottom is located at the outside of casing air and mercurial thermometer；It is described to survey
Fixed tube is outwards communicated with the acclivitous branch pipe that feeds intake, and between the branch pipe that feeds intake is covered on casing air plug and measure pipe, feeds intake
Branch pipe top is provided with the manifold plug for being used for sealing the branch pipe that feeds intake.
2. the ice bath device according to claim 1 tested for kryoscopy, it is characterised in that：On the measure pipe
Be covered with poke hole and sealing block, sealing block is fixedly connected in poke hole, determine pipe stirring rod through sealing block and with sealing
Block is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151196.3U CN206515271U (en) | 2017-02-20 | 2017-02-20 | The ice bath device tested for kryoscopy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151196.3U CN206515271U (en) | 2017-02-20 | 2017-02-20 | The ice bath device tested for kryoscopy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206515271U true CN206515271U (en) | 2017-09-22 |
Family
ID=59868549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720151196.3U Expired - Fee Related CN206515271U (en) | 2017-02-20 | 2017-02-20 | The ice bath device tested for kryoscopy |
Country Status (1)
| Country | Link |
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| CN (1) | CN206515271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562606A (en) * | 2018-03-20 | 2018-09-21 | 武汉研润科技发展有限公司 | A kind of engine coolant freezing point apparatus |
-
2017
- 2017-02-20 CN CN201720151196.3U patent/CN206515271U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562606A (en) * | 2018-03-20 | 2018-09-21 | 武汉研润科技发展有限公司 | A kind of engine coolant freezing point apparatus |
| CN108562606B (en) * | 2018-03-20 | 2023-11-10 | 武汉研润科技发展有限公司 | Engine coolant freezing point tester |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 Termination date: 20180220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |