CN210486162U

CN210486162U - Cooling device and molecular distiller

Info

Publication number: CN210486162U
Application number: CN201921260568.1U
Authority: CN
Inventors: 徐清; 刘彬; 许杨
Original assignee: Huzhou Kexin Experimental Instrument Co Ltd
Current assignee: Huzhou Kexin Experimental Instrument Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-08
Anticipated expiration: 2029-08-05

Abstract

The utility model provides a cooling device and a molecular distiller, which comprises a semiconductor refrigerator; the cooler is connected with the hot surface of the semiconductor refrigerator; and the condensation end of the heat pipe is connected with the cold surface of the semiconductor refrigerator through the heat conduction block, and the evaporation end of the heat pipe exchanges heat with the cold surface of the application equipment through the heat conduction fin. Compared with the prior art, the utility model adopts the semiconductor refrigeration technology, has excellent temperature regulation, very rapid and accurate heating and cooling, compact volume and simple disassembly and assembly; the utility model discloses can really realize not adding any coolant liquid when using, avoid the weeping from the principle, improve the ease for use, reduce the use complexity of molecular distillation ware.

Description

Cooling device and molecular distiller

Technical Field

The utility model relates to a medicine biochemical industry technical equipment and energy technical field are a cooling device and molecular still particularly.

Background

Molecular distillation is a method for separating materials under high vacuum conditions, and the principle is to separate different molecules in the materials by using the difference of the mean free path of the molecules of the materials under the high vacuum. The method has great advantages for separating high-viscosity and heat-sensitive materials, and has wide application in the industries of food, medicine, fine chemical engineering and the like.

At present, heating and condensation of molecular distillation are carried out in a heat exchange mode, for example, heat conducting oil is introduced to the outside of a hot surface for heating, and cooling liquid is introduced to a cold surface. However, these auxiliary devices for heating and cooling result in an excessive footprint of the molecular distillation plant and the large specific heat capacity of the thermal oil and the cooling liquid itself also do not facilitate rapid temperature regulation. In addition, the oil liquid and the cooling liquid have leakage hidden troubles, and need to be replaced periodically after being used for a period of time, so that the operation is complicated, and the use is not facilitated.

For example, publication No. CN1051679 discloses a molecular distillation heater, which is not filled with metal heat-transfer fins and sleeves in a heating jacket, the heating jacket is connected with a hot oil diffuser, and the heating jacket is filled with heat-transfer oil, so that hot oil can circulate inside the heating jacket, but the heating jacket is still heat-exchange type, the hot oil inside the heating jacket has a leakage risk, and the hot oil has a large specific heat capacity, which is not favorable for rapid temperature adjustment.

Publication No. CN208097448U discloses a built-in double-pipe condenser, in which the condensing zone includes 7 condensing sleeves, and the proceeding and returning of the condensate can be completed independently in the same condensing sleeve, thus saving space. However, the cooling form still depends on cooling water for heat exchange, so that the risk of liquid leakage exists, and the quick temperature regulation performance is not good.

At present, the molecular distillation device has various forms, heating and condensation used by the devices with different sizes and structures are heat exchange type based on heat conduction oil and cooling liquid, and the system has a series of problems of large occupied area, easy liquid leakage, incapability of quickly adjusting temperature and the like, increases the operation complexity of the molecular distillation device, and also reduces the separation effect.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a need not to add the refrigerating plant of any coolant liquid and need not to add the molecular still of any conduction oil and coolant liquid.

The utility model discloses an above-mentioned technical problem is solved to following technical scheme:

a cooling device comprises

A semiconductor refrigerator;

the cooler is connected with the hot surface of the semiconductor refrigerator;

and the condensation end of the heat pipe is connected with the cold surface of the semiconductor refrigerator through the heat conduction block, and the evaporation end of the heat pipe exchanges heat with the cold surface of the application equipment through the heat conduction fin.

Preferably, the cooler is an air cooler or a water cooler.

Preferably, the number of the heat pipes is 2, and the condensation sections of the 2 heat pipes are respectively contacted with different positions of the heat conduction speed.

A molecular distiller comprises a heating device, a film scraper and a cooling device; the heating device comprises a coated glass shell which is electrically connected with a power supply through an electrode; the film scraper comprises a driving mechanism and a film scraping part; the film scraping part is positioned in the coated glass shell, and an output shaft of the driving mechanism penetrates through the coated glass shell to be in driving connection with the film scraping part; and the Zheng transmitting end of the heat pipe of the cooling device is positioned in the coated glass shell.

Preferably, the coated glass shell is provided with a feed inlet, a heavy component outlet and a light component outlet; the feed inlet is positioned at the top of the coated glass shell, the heavy component outlet is positioned at the bottom of the coated glass shell and close to the side wall of the coated glass shell, and the light component outlet is positioned at the bottom of the coated glass shell and is cut below the heat conduction fin.

The utility model has the advantages that:

(1) compared with the prior cooling technology, the utility model adopts the semiconductor refrigeration technology, has excellent temperature regulation, very rapid and accurate heating and cooling, compact volume and simple disassembly and assembly;

(2) compared with the prior heating technology, the utility model adopts the coated glass technology, the coated glass shell is directly heated when passing current, and the temperature can be quickly adjusted because the specific heat capacity of the glass is small;

(3) the utility model discloses can really realize not adding any heat conduction fluid and coolant liquid when using, avoid the weeping in principle, improve the ease for use, reduce molecular distillation ware's use complexity.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a middle molecular distiller implemented in the present invention.

Detailed Description

In order to further understand and appreciate the structural features and advantages of the present invention, preferred embodiments and the accompanying drawings are described in detail as follows:

as shown in fig. 1, a molecular still is used without adding heat transfer oil and/or cooling liquid. The concrete structure is as follows:

the hot surface of the molecular still consists of a coated glass shell 6 and a cooling device, wherein the coated glass shell 6 comprises a feed inlet 1, a transmission shaft 2, a film scraping part 2', a heating electrode 3, a heavy component outlet 4 and a light component outlet 5.

The feed inlet 1 is positioned at the top of the coated glass shell 6, the heavy component outlet 4 is positioned at the bottom of the coated glass shell 6 and close to the side wall of the coated glass shell, and the light component outlet 5 is positioned at the bottom of the coated glass shell 6 and is positioned below the heat-conducting fins 7'. The film scraping part 2 'is positioned in the coated glass shell 6, and a transmission shaft 2 of the driving mechanism extends into the coated glass shell 6 from top to bottom to drive the film scraping part 2' to rotate.

The cooling device comprises a semiconductor refrigerator 10, an air cooler 9, a heat conducting block 11, a heat pipe 7 and a fin 7'.

Semiconductor cooler 10 is electrically connected to a power source through electrode 8. The air cooler 9 is connected with the hot surface of the semiconductor refrigerator, and the hot surface of the semiconductor refrigerator is cooled; the condensation end of the heat pipe 7 is connected with the cold surface of the semiconductor refrigerator 10 through the heat conducting block 11 for heat exchange, and the evaporation end of the heat pipe is positioned in the coated glass shell 6 and exchanges heat with the cold surface of the coated glass shell 6 through the fins 7'.

In order to improve the separation effect, the molecular still is preferably additionally provided with one of a coated glass shell or a semiconductor refrigerator, and more preferably is additionally provided with a coated glass shell heater and a semiconductor refrigeration module simultaneously; the hot surface of the molecular distiller consists of a coated glass shell, preferably indium tin oxide glass; the cold surface of the molecular distiller is cooled by semiconductor refrigeration, and is connected with the condensation end of one or more heat pipes through a heat conducting block, preferably 2 heat pipes, more preferably 3-10 heat pipes.

Take a molecular distillation feed operation as an example. The material to be separated firstly enters from the feed inlet 1 and is evenly coated on the inner surface of the hot-face coated glass shell 6 through the film scraping part 2'. At this time, molecules overflow the inner surface of the glass due to the heating action, and molecules with a free path larger than the distance between the cold and hot surfaces are condensed and captured by the cold surfaces, namely the hot pipe 7 and the fins 7', and then are collected through the light component outlet 5. Molecules with a free path shorter than the distance between the cold and hot surfaces stay on the inner surface of the glass and are finally collected through the heavy component outlet 4. The coated glass shell is directly heated when passing current, and the temperature is very convenient to rapidly adjust due to the small specific heat capacity of the glass. The semiconductor refrigerating system transfers heat to the semiconductor refrigerator through the heat pipe, the heat conduction is rapid, and the capacity of adjusting the temperature is excellent because no external cooling liquid is used.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A cooling device, characterized by: comprises that

A semiconductor refrigerator;

the cooler is connected with the hot surface of the semiconductor refrigerator;

2. A cooling apparatus as claimed in claim 1, wherein: the cooler is an air cooler or a water cooler.

3. A cooling apparatus according to claim 1 or 2, wherein: the heat pipe be 2, 2 heat pipe condensation segments contact with the fast different positions of heat conduction respectively.

4. A molecular still, characterized by: comprises a heating device, a film scraper and a cooling device; the heating device comprises a coated glass shell which is electrically connected with a power supply through an electrode; the film scraper comprises a driving mechanism and a film scraping part; the film scraping part is positioned in the coated glass shell, and an output shaft of the driving mechanism penetrates through the coated glass shell to be in driving connection with the film scraping part; and the Zheng transmitting end of the heat pipe of the cooling device is positioned in the coated glass shell.

5. A molecular still according to claim 4 wherein: the coated glass shell is provided with a feed inlet, a heavy component outlet and a light component outlet; the feed inlet is positioned at the top of the coated glass shell, the heavy component outlet is positioned at the bottom of the coated glass shell and close to the side wall of the coated glass shell, and the light component outlet is positioned at the bottom of the coated glass shell and is cut below the heat conduction fin.