CN215585482U

CN215585482U - Rotary evaporator for lactic acid extraction and refining

Info

Publication number: CN215585482U
Application number: CN202121629634.5U
Authority: CN
Inventors: 柳秋林; 智楠; 韦绪伦; 孙建宏; 张瑞特; 李素梅; 聂守杰
Original assignee: Etsong Qingdao Industrial Co ltd
Current assignee: Etsong Qingdao Industrial Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-01-21
Anticipated expiration: 2031-07-16

Abstract

The utility model provides a rotary evaporator for extracting and refining lactic acid, which comprises a rotary bottle and a heating device, wherein the heating device comprises a box body, a water pumping assembly and a spraying assembly; the water storage cavity is internally provided with a heating element, and the water pumping assembly can pump water in the water storage cavity to the spraying assembly. Rotatory evaporimeter changes traditional water bath mode through adding pumping assembly and spray set, makes rotatory bottle no longer soak in the aquatic, takes out to spray set through pumping assembly with the warm water of water storage intracavity, and spray set sprays the warm water evenly on rotatory bottle, and rotatory bottle incessantly rotates can be even be heated, removes below bathtub and has avoided rotatory bottle because of being heated inhomogeneous and the risk of exploding.

Description

Rotary evaporator for lactic acid extraction and refining

Technical Field

The utility model relates to the technical field of chemical experimental equipment, in particular to a rotary evaporator for extracting and refining lactic acid.

Background

Rotary evaporators are common laboratory equipment used primarily for continuous distillation of large quantities of volatile solvents under reduced pressure. Most of the existing rotary evaporators are characterized in that a small part of an evaporation bottle is directly immersed into hot water, and a layer of liquid film is formed on the inner wall of the evaporation bottle by continuously rotating the evaporation bottle, so that the liquid in the evaporation bottle is continuously heated.

For example, in the field of cigarettes, a rotary evaporation bottle is generally adopted to extract and refine lactic acid, namely, the traditional lactic acid and water are mixed according to the ratio of 1: 1 and rotary evaporation by a rotary evaporator. But rotatory evaporimeter evaporates when the temperature is lower, in the rotatory in-process of evaporating flask, the part that the evaporating flask contacted with the hot water constantly changes, evaporating flask bottle wall temperature is less than the water bath temperature, thereby make the evaporating flask heated insufficiently evenly, influence evaporation efficiency, it is exactly that current evaporimeter heating part mostly does not have the lid again, the heat preservation effect is poor, thereby cause certain calorific loss, the heating effect is poor, especially influence evaporation efficiency under the lower condition of ambient temperature, there is also some design of fountain, nevertheless the evaporating flask still soaks in the water, the temperature of the water that sprays to evaporating flask upper portion is less than the temperature of water bath, under this condition, the evaporating flask has the danger of exploding, there is the potential safety hazard.

There is an urgent need for an apparatus that can solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rotary evaporator for extracting and refining lactic acid, which can improve the heating efficiency and the safety of an evaporation process.

In order to achieve the purpose, the utility model provides a rotary evaporator for extracting and refining lactic acid, which comprises a rotary bottle and a heating device, wherein the heating device comprises a box body, a water pumping assembly and a spraying assembly; a heating device is arranged in the water storage cavity, and the water pumping assembly can pump water in the water storage cavity to the spraying assembly.

According to the rotary evaporator for lactic acid extraction and purification, the traditional water bath mode is changed by adding the water pumping assembly and the spraying assembly, so that the rotary bottle is not soaked in water any more, warm water in the water storage cavity is pumped to the spraying assembly through the water pumping assembly, the spraying assembly uniformly sprays the warm water on the rotary bottle, the rotary bottle can be uniformly heated without stopping rotation, and the risk that the rotary bottle is cracked due to nonuniform heating is avoided by removing the lower water bath tub.

A communicating plate is arranged between the water storage cavity and the heating cavity, a plurality of water permeable holes are formed in the communicating plate, and the communicating plate is located below the rotary bottle. The communicating plate separates the box body into a heating cavity and a water storage cavity, warm water is stored in the water storage cavity, warm water is sprayed in the heating cavity to heat the rotary bottle, the evaporation efficiency is improved, and the rotary bottle is prevented from being cracked due to uneven heating.

The water pumping assembly comprises a water pumping pump and a water pumping pipe. Adopt the warm water of light small-size suction pump extraction water storage intracavity, carry the warm water to spray assembly through the drinking-water pipe, improved the efficiency that sprays and hydrologic cycle's speed, improved the efficiency of evaporation.

The suction pump is connected to the top of the box body, and the suction pipe is a hose. The water suction pump is arranged at the top of the box body, so that the cleaning and maintenance are convenient, the water pressure during spraying can be increased, and the water suction pipe is selected from the hose to facilitate the opening and closing of the box body, so that the replacement is convenient.

The spraying assembly comprises a connecting pipe and a water outlet spray head. The spray heads with different models can be replaced according to the requirements of different spraying speeds, so that a better evaporation effect is achieved.

The box includes main part and top cap, and the top cap is transparent material, and the main part can be dismantled with the top cap and be connected. The top cap sets up to transparent material and is convenient for observe the evaporation condition of liquid in the rotatory bottle, and the main part can be dismantled with the top cap and be connected, makes things convenient for the clearance and the maintenance of box, conveniently dismantles the rotatory bottle simultaneously.

The inner wall of the box body is provided with a heat preservation layer. Further ensuring the temperature in the box body, saving energy, increasing evaporation efficiency and enabling the rotary bottle to be heated evenly.

The heating device is provided with an electronic temperature control device. The water temperature in the water storage cavity can be controlled more accurately, and the requirements of evaporating different liquids can be met.

The electronic temperature control device comprises a temperature display screen, a temperature regulator and a temperature sensor. The temperature display screen can observe the water temperature more intuitively, quantize the water temperature and can carry out relatively precise evaporation work.

The heating element is electromagnetically heated. The heating speed is fast, and heating temperature is accurate, the temperature of easier control.

Drawings

The drawings described herein are only for assisting those skilled in the art in understanding the technical solutions of the present invention, and the exemplary embodiments of the present invention described in conjunction with the drawings are only for explaining the technical solutions of the present invention and do not constitute a limitation of the present invention. In the drawings:

FIG. 1 is a side cross-sectional view of a rotary evaporator according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a water pumping assembly and a spraying assembly provided in the embodiment of the present invention;

FIG. 3 is a side cross-sectional view of a heating device with a top cover opened according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an electronic temperature control device according to an embodiment of the present invention.

List of reference numerals:

1. a heating device; 11. a box body; 111. a heating cavity; 112. a water storage cavity; 113. a main body; 114. a top cover; 115. a heat-insulating layer; 12. a water pumping assembly; 121. a water pump; 122. a water pumping pipe; 13. a spray assembly; 131. a connecting pipe; 132. a water outlet nozzle; 14. a heating member; 15. a communication plate; 151 water permeable holes; 16. an electronic temperature control device; 161. a temperature display screen; 162. a temperature regulator; 163. a temperature sensor.

2 rotating the bottle.

Detailed Description

In order to more clearly explain the overall concept of the utility model, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the present specification, reference to the description of the terms "one aspect," "some aspects," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1, fig. 1 is a side sectional view of the whole rotary evaporator, which includes a rotary bottle 2 and a heating device 1, wherein the heating device includes a box body 11, a water pumping assembly 12 and a spraying assembly 13, the box body 11 is sequentially provided with a heating cavity 111 and a water storage cavity 112 from top to bottom, the rotary bottle 2 is suspended in the heating cavity 111, the spraying assembly 13 is located above the rotary bottle 2, and the spraying assembly 13 is communicated with the water pumping assembly 12; the heating element 14 is arranged in the water storage cavity 112, and the water pumping component 12 can pump the water in the water storage cavity 112 to the spraying component 13. Water pumping component 12 takes out the water in water storage chamber 112 to spray set 13 in, spray set 13 with the even spraying of warm water on rotatory bottle 2, rotatory bottle 2 is rotatory at the in-process of work ceaselessly, the even attached to on the bottle wall of rotatory bottle 2 of liquid in the rotatory bottle 2, the warm water sprays on rotatory bottle 2 outer wall, the even film thermally equivalent of liquid formation on the bottle wall in the bottle, it is high than traditional water bath mode evaporation efficiency, the risk that traditional water bath explodes with the evaporating flask 2 that the spray mode brought has been avoided. The water falls into the water storage cavity 112 through the rotary bottle 2, and the heating element 14 in the water storage cavity 112 is continuously operated to maintain a constant water temperature.

According to the rotary evaporator provided by the utility model, the traditional water bath mode is changed by adding the water pumping assembly 12 and the spraying assembly 13, so that the rotary bottle 2 is not soaked in water any more, warm water in the water storage cavity 112 is pumped to the spraying assembly 13 through the water pumping assembly 12, the spraying assembly 13 uniformly sprays the warm water on the rotary bottle 2, the rotary bottle 2 can be uniformly heated without stopping rotation, and the risk of explosion of the rotary bottle 2 due to nonuniform heating is avoided by removing the lower water bath tub.

In the embodiment shown in fig. 1, a communication plate 15 is disposed between the water storage chamber 112 and the heating chamber 111, the communication plate 15 has a plurality of water-permeable holes 151, and the communication plate 15 is located below the rotary bottle 2. The spraying component 13 sprays water on the rotary bottle 2, then falls on the communicating plate 15, and falls into the water storage cavity 112 through the water through hole 151 on the communicating plate 15, so that the water in the box body reaches a circulating state. The communicating plate 15 divides the box body into a heating cavity 111 and a water storage cavity 112, warm water is stored in the water storage cavity 112, the warm water is sprayed in the heating cavity 111 to heat the rotary bottle 2, the evaporation efficiency is improved, and the rotary bottle 2 is prevented from being burst due to uneven heating.

In the embodiment shown in fig. 2, the pumping assembly 12 comprises pumping pipes of pumping

pumps

121 and 122. The lower end of the water pumping pipe 122 is arranged in the water storage cavity 112, and water in the water storage cavity 112 is pumped into the spraying assembly 13 by the suction force of the water pumping pump 121. Adopt portable small-size suction pump 121 to extract the warm water in the water storage chamber 112, carry the warm water to spray assembly 13 through drinking-water pipe 122, improved the efficiency that sprays and hydrologic cycle's speed, improved the efficiency of evaporation.

In the embodiment shown in fig. 3, the suction pump 121 is connected to the top of the tank 11, and the suction pipe 122 is a hose. Set up suction pump 121 and make things convenient for the clearance maintenance at box 11 top, water pressure when simultaneously can increase to spray, the suction pipe selects the hose to make things convenient for opening and shutting of box, is convenient for change.

In the embodiment shown in fig. 2, the spray assembly 13 includes a connecting pipe 131 and a water outlet nozzle 132. The spray heads with different models can be replaced according to the requirements of different spraying speeds, so that a better evaporation effect is achieved.

In the embodiment shown in fig. 3, the box body comprises a main body 113 and a top cover 114, the top cover 114 is made of transparent material, and the main body 113 is detachably connected with the top cover 114. The top cover 114 can be upturned, the spraying component 13 and the pumping component 12 can be simultaneously upturned along with the upper cover, the top cover 114 is made of transparent materials, so that the evaporation condition of liquid in the rotary bottle can be conveniently observed, the main body 113 and the top cover 114 can be detachably connected, the box body is convenient to clean and maintain, and the rotary bottle 2 is convenient to detach.

In the embodiment shown in fig. 3, the heat insulating layer 115 is arranged in the box body 11, and the heat insulating layer 115 is arranged in the side wall of the main body of the box body 11, so that the temperature in the box body 11 is further ensured, the energy is saved, the evaporation efficiency is increased, and the rotary bottle 2 is heated uniformly.

In the embodiment shown in fig. 4, the heating device 1 is provided with an electronic temperature control device 16 for controlling and regulating the temperature of the water in the water storage chamber. The water temperature in the water storage cavity can be controlled more accurately, and the requirements of evaporating different liquids can be met.

In the embodiment shown in fig. 4, the electronic temperature control device 16 comprises a temperature display screen 161, a temperature regulator 162, and a temperature sensor 163, wherein the temperature sensor 163 is inserted into the side wall of the housing 11, and the sensing end is in contact with water in the water storage cavity 112. The temperature display screen 161 can observe the water temperature more intuitively, quantize the water temperature, and can perform relatively precise evaporation work.

In the embodiment shown in fig. 3, the heating member 14 is electromagnetically heated. The heating speed is fast, and heating temperature is accurate, the temperature of easier control.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A rotary evaporator for extracting and refining lactic acid is characterized by comprising a rotary bottle and a heating device; the heating device comprises a box body, a water pumping assembly and a spraying assembly, the box body is sequentially provided with a heating cavity and a water storage cavity from top to bottom, the rotary bottle is suspended in the heating cavity, the spraying assembly is positioned above the rotary bottle, and the spraying assembly is communicated with the water pumping assembly; the water storage cavity is internally provided with a heating element, and the water pumping component can pump water in the water storage cavity to the spraying component.

2. The rotary evaporator for lactic acid extraction and purification according to claim 1, wherein a communication plate is disposed between the water storage chamber and the heating chamber, the communication plate is provided with a plurality of water permeable holes, and the communication plate is located below the rotary bottle.

3. A rotary evaporator for lactic acid extraction refining as claimed in claim 1, characterized in that the pumping assembly comprises a pump and a pipe.

4. The rotary evaporator for lactic acid extraction and purification as claimed in claim 3, wherein the water pump is connected to the top of the tank body, and the water pumping pipe is a hose.

5. The rotary evaporator for lactic acid extraction and purification according to claim 1, wherein the spraying assembly comprises a connecting pipe and a water outlet nozzle.

6. The rotary evaporator for lactic acid extraction and purification according to claim 1, wherein the case comprises a main body and a top cover, the top cover is made of transparent material, and the main body is detachably connected with the top cover.

7. The rotary evaporator for extracting and refining lactic acid as claimed in claim 1, wherein the inner wall of the case is provided with an insulating layer.

8. The rotary evaporator for lactic acid extraction and purification according to claim 1, wherein the heating device is provided with an electronic temperature control device.

9. The rotary evaporator for lactic acid extraction and purification according to claim 8, wherein the electronic temperature control device comprises a temperature display screen, a temperature regulator and a temperature sensor.

10. The rotary evaporator for lactic acid extraction and purification according to claim 1, wherein the heating member employs electromagnetic heating.