CN204319807U - A kind of molecular clock trap - Google Patents
A kind of molecular clock trap Download PDFInfo
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- CN204319807U CN204319807U CN201420745995.XU CN201420745995U CN204319807U CN 204319807 U CN204319807 U CN 204319807U CN 201420745995 U CN201420745995 U CN 201420745995U CN 204319807 U CN204319807 U CN 204319807U
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Abstract
The utility model discloses a kind of molecular clock trap, object be to solve existing trap under molecular distillation equipment high vacuum operating mode time, there is bulky, that heat exchange specific area is little, overall heat-transfer coefficient is low problem.This trap comprises housing, the fixed gas import for being connected with distiller, the vacuum interface for being connected with vaccum-pumping equipment, condensate outlet, dividing plate, spiral winding tube type heat exchanger, cooling medium inlet, cooling medium export, and fixed gas import, vacuum interface, cooling medium inlet, cooling medium outlet are separately positioned on housing.The molecular clock trap that the utility model provides has compact conformation, heat transfer coefficient is high, running expense is low, consume energy few advantage, effectively can expand the range of application of molecular still, promotes molecular still result of use.The utility model is skillfully constructed, reasonable in design, and volume is little, and efficiency is high, has good condensation effect, and it is for the development promoting trap, significant.
Description
Technical field
The utility model relates to field of heat exchangers, especially a kind of molecular clock trap (cold-trap).
Background technology
Molecular still is a kind of heat separation device be operated under 1 ~ 0.001mbar absolute pressure, and it has lower boiling temperature, is very applicable to thermal sensitivity, high boiling substance.For ensureing the vacuum of molecular still, need, at the vacuum outlet of molecular still, trap is installed.Trap is using the material of liquid nitrogen or other lower temperature as cooling medium, and it can cannot the on-condensible gas sub-cooled trapping again of condensation built-in condenser.Adopt trap, can effectively reduce vacuum suction load, reduce vacuum operating cost, also can protect vacuum equipment.In some cases, such as, when processing some high added value material, the yield of distillation can also be increased.
The more employing shell and tube condenser of existing molecular still trap or coiled tube condenser, when this trap is used under molecular distillation equipment high vacuum operating mode, there is bulky, that heat exchange specific area is little, overall heat-transfer coefficient is low problem, cause condensation efficiency poor, have impact on the overall result of use of molecular distillation equipment.
Therefore, in the urgent need to a kind of compact efficient molecular clock trap, to solve prior art Problems existing.
Utility model content
Goal of the invention of the present utility model is: when being used under molecular distillation equipment high vacuum operating mode for existing trap, there is bulky, that heat exchange specific area is little, overall heat-transfer coefficient is low problem, provide a kind of molecular clock trap.The molecular clock trap that the utility model provides has compact conformation, heat transfer coefficient is high, running expense is low, consume energy few advantage, effectively can expand the range of application of molecular still, promotes molecular still result of use.The utility model is skillfully constructed, reasonable in design, and volume is little, and efficiency is high, has good condensation effect, and it is for the development promoting trap, significant.
To achieve these goals, the utility model adopts following technical scheme:
A kind of molecular clock trap, comprise housing, for the fixed gas import be connected with distiller, for the vacuum interface be connected with vaccum-pumping equipment, condensate outlet, dividing plate, spiral winding tube type heat exchanger, cooling medium inlet, cooling medium exports, described fixed gas import, vacuum interface, cooling medium inlet, cooling medium outlet is separately positioned on housing, described condensate outlet is arranged on the bottom of housing, described dividing plate, spiral winding tube type heat exchanger is separately positioned in housing, described cooling medium inlet, cooling medium outlet is connected with the two ends of spiral winding tube type heat exchanger respectively, described fixed gas import, vacuum interface lays respectively at the both sides of dividing plate, described dividing plate upper end is connected with housing and is provided with opening between dividing plate lower end and housing.
Described housing is cylindrical tube.
Described spiral winding tube type heat exchanger is made up of spiral winding tube core, and described spiral winding tube core is provided with screw thread.
Described spiral winding tube type heat exchanger is positioned at the both sides of dividing plate.
Described spiral winding tube type heat exchanger is U-shaped and dividing plate is positioned at spiral winding tube type heat exchanger.
Described dividing plate upper end is connected with housing and is provided with opening between dividing plate lower end and housing, forms U-shaped cavity between described dividing plate and fixed gas import, vacuum interface.
Also comprise the condensate collector be connected with condensate outlet.
For signing for problem, the utility model provides a kind of molecular clock trap.This molecular clock trap comprises housing, fixed gas import, vacuum interface, condensate outlet, dividing plate, spiral winding tube type heat exchanger, cooling medium inlet, cooling medium outlet, housing is cylindrical tube, fixed gas import is connected with distiller, and the fixed gas in distiller enters in trap by fixed gas import; Vacuum interface is connected with vaccum-pumping equipment.Fixed gas import, vacuum interface, cooling medium inlet, cooling medium outlet are separately positioned on housing, and condensate outlet is arranged on the bottom of housing.Dividing plate, spiral winding tube type heat exchanger are separately positioned in housing, the outlet of cooling medium inlet, cooling medium is connected with the two ends of spiral winding tube type heat exchanger respectively, fixed gas import, vacuum interface lay respectively at the both sides of dividing plate, and dividing plate upper end is connected with housing and is provided with opening between dividing plate lower end and housing.On-condensible gas enters in the housing of trap through fixed gas import, cools under the condensation of spiral winding tube type heat exchanger, and to the disadvantageous condensation of gas of vacuum equipment, and discharged by condensate outlet, remaining gas is then flowed out by vacuum interface.In the utility model, cooling medium is entered in spiral winding tube type heat exchanger by cooling medium inlet, and is discharged by cooling medium outlet.Wherein, fixed gas import, vacuum interface lay respectively at the both sides of dividing plate, dividing plate upper end is connected with housing and is provided with opening between dividing plate lower end and housing, adopt this structure, housing is divided into two cavitys by dividing plate, and gas, after fixed gas import enters, first enters the cavity between dividing plate and fixed gas import, gas along dividing plate to housing moved beneath, then flows out through the cavity between dividing plate and vacuum interface.By this structure, effectively can increase the flow path of gas in trap housing, increase the contact area of itself and spiral winding tube type heat exchanger, effectively promote overall heat-transfer coefficient, solve prior art Problems existing.
Existing molecular still trap mainly adopts tubulation heat exchange, coil heat exchange, and the utility model provides a kind of brand-new heat exchange structure.In the utility model, dividing plate upper end is connected with housing and is provided with opening between dividing plate lower end and housing, forms U-shaped cavity between dividing plate and fixed gas import, vacuum interface.Further, in the utility model, spiral winding tube type heat exchanger is made up of spiral winding tube core, and spiral winding tube core is provided with screw thread, and charging and discharging are undertaken distributing and collecting by tube sheet, and baffling is completed by hydraulic barrier; Adopt this structure, can produce strong turbulence effects when cooling medium flows through tube side and shell side, heat exchange efficiency and exchange capability of heat are greatly improved, and meanwhile, Impurity deposition probability is little, and fouling tendency is low.Meanwhile, the spiral winding tube type heat exchanger that the utility model adopts, completely eliminates the pulling-out force between spiral winding tube core and tube sheet, greatly improves service life.Owing to adopting this structure, the utility model can bear elevated pressures under low wall thickness, spiral winding mode can increase flow channel length, extend fluid retention time, allow cold and hot medium reach abundant heat transfer, the screw thread that tube core distributes makes media flow can produce strong turbulence effects when tube side and shell side, and heat exchange efficiency is greatly improved, exchange capability of heat is 3-7 times of traditional heat exchangers, and overall heat-transfer coefficient reaches as high as 14000W/m
2dEG C.Through practical measurement, under adopting the equal heat exchange amount of trap of the present utility model, volume is about 1/8 to 1/10 of conventional traps.
Spiral winding tube type heat exchanger is positioned at the both sides of dividing plate, and as preferably, spiral winding tube type heat exchanger is U-shaped, and dividing plate is positioned at spiral winding tube type heat exchanger.Adopt this structure, spiral winding tube type heat exchanger is uniformly distributed along the both sides of dividing plate, is conducive to improving condensation effect.Further, the condensate collector be connected with condensate outlet is also comprised.
Trap of the present utility model has that volume is little, heat exchange efficiency is high, running expense is low, consume energy few advantage, effectively can ensure the operation of molecular still.
In sum, owing to have employed technique scheme, the utility model can when not affecting result of use, the volume of very big reduction trap, improve heat exchange specific area, Problems existing when the existing trap of effective solution is used for high vacuum operating mode, has that volume is little, heat exchange efficiency is high, running expense is low, consume energy few advantage, effectively effectively can ensure the operation of molecular still.
Accompanying drawing explanation
The utility model illustrates by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 is housing, and 2 is fixed gas import, and 3 is vacuum interface, and 4 is condensate outlet, and 5 is dividing plate, and 6 is spiral winding tube type heat exchanger, and 7 is cooling medium inlet, 8 is cooling medium outlet.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description, unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Embodiment 1
A kind of molecular clock trap, comprise housing, for the fixed gas import be connected with distiller, for the vacuum interface be connected with vaccum-pumping equipment, condensate outlet, dividing plate, spiral winding tube type heat exchanger, cooling medium inlet, cooling medium exports, housing is cylindrical tube, fixed gas import, vacuum interface, cooling medium inlet, cooling medium outlet is separately positioned on housing, condensate outlet is arranged on the bottom of housing, dividing plate, spiral winding tube type heat exchanger is separately positioned in housing, cooling medium inlet, cooling medium outlet is connected with the two ends of spiral winding tube type heat exchanger respectively, fixed gas import, vacuum interface lays respectively at the both sides of dividing plate, dividing plate upper end is connected with housing and is provided with opening between dividing plate lower end and housing, dividing plate and fixed gas import, U-shaped cavity is formed between vacuum interface.Spiral winding tube type heat exchanger is U-shaped and dividing plate is positioned at spiral winding tube type heat exchanger, and spiral winding tube type heat exchanger is made up of spiral winding tube core, and spiral winding tube core is provided with screw thread.
During utility model works, on-condensible gas enters in the housing (i.e. cylindrical tube) of trap through fixed gas import, after spiral winding tube type heat exchanger condensation, condensed fluid is got rid of from condensate outlet, innocuous gas discharges Distallation systm by vacuum interface through vavuum pump, and the utility model can ensure the whole Distallation systm balance of molecular clock, stable operation.In the present embodiment, dividing plate can increase the flow process of gas, allows the abundant condensation of on-condensible gas.And spiral winding tube type heat exchanger can the volume of very big reduction means, improve heat exchange efficiency, efficiently can trap harmful on-condensible gas, effectively protect the operation of positive molecular still.Cooling medium enters from cooling medium inlet, after cooling, from cooling medium outlet discrepancy refrigeration system, realizes recycling.
The utility model is not limited to aforesaid detailed description of the invention.The utility model expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (7)
1. a molecular clock trap, it is characterized in that, comprise housing, for the fixed gas import be connected with distiller, for the vacuum interface be connected with vaccum-pumping equipment, condensate outlet, dividing plate, spiral winding tube type heat exchanger, cooling medium inlet, cooling medium exports, described fixed gas import, vacuum interface, cooling medium inlet, cooling medium outlet is separately positioned on housing, described condensate outlet is arranged on the bottom of housing, described dividing plate, spiral winding tube type heat exchanger is separately positioned in housing, described cooling medium inlet, cooling medium outlet is connected with the two ends of spiral winding tube type heat exchanger respectively, described fixed gas import, vacuum interface lays respectively at the both sides of dividing plate, described dividing plate upper end is connected with housing and is provided with opening between dividing plate lower end and housing.
2. molecular clock trap according to claim 1, it is characterized in that, described housing is cylindrical tube.
3. molecular clock trap according to claim 1, it is characterized in that, described spiral winding tube type heat exchanger is made up of spiral winding tube core, and described spiral winding tube core is provided with screw thread.
4. molecular clock trap according to any one of claim 1-3, is characterized in that, described spiral winding tube type heat exchanger is positioned at the both sides of dividing plate.
5. molecular clock trap according to claim 4, it is characterized in that, described spiral winding tube type heat exchanger is U-shaped and dividing plate is positioned at spiral winding tube type heat exchanger.
6. molecular clock trap according to claim 4, it is characterized in that, described dividing plate upper end is connected with housing and is provided with opening between dividing plate lower end and housing, forms U-shaped cavity between described dividing plate and fixed gas import, vacuum interface.
7. molecular clock trap according to any one of claim 1-3, is characterized in that, also comprises the condensate collector be connected with condensate outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420745995.XU CN204319807U (en) | 2014-12-02 | 2014-12-02 | A kind of molecular clock trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420745995.XU CN204319807U (en) | 2014-12-02 | 2014-12-02 | A kind of molecular clock trap |
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| Publication Number | Publication Date |
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| CN204319807U true CN204319807U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420745995.XU Active CN204319807U (en) | 2014-12-02 | 2014-12-02 | A kind of molecular clock trap |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390501A (en) * | 2016-11-09 | 2017-02-15 | 亚申科技研发中心（上海）有限公司 | Molecular distillation apparatus |
| CN108888983A (en) * | 2018-08-17 | 2018-11-27 | 北京铂阳顶荣光伏科技有限公司 | A kind of cold-trap and film device is deposited altogether |
-
2014
- 2014-12-02 CN CN201420745995.XU patent/CN204319807U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390501A (en) * | 2016-11-09 | 2017-02-15 | 亚申科技研发中心（上海）有限公司 | Molecular distillation apparatus |
| CN108888983A (en) * | 2018-08-17 | 2018-11-27 | 北京铂阳顶荣光伏科技有限公司 | A kind of cold-trap and film device is deposited altogether |
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