Molecular distillation cold trap capable of circularly cooling

Abstract

The utility model belongs to the technical field of cold traps, and particularly discloses a molecular distillation cold trap capable of circularly cooling, which comprises a container, and a placing cavity is arranged at the top of the outer wall of the container. According to the molecular distillation system, warm water is stored in the warm water tank, the whole molecular distillation system is closed, the control valve is adjusted to open the warm water tank and the connecting pipe, and the warm water in the warm water tank naturally flows into the container through the water inlet pipe and flows into the connecting pipe through the collecting bottle; the beneficial effects of the arrangement are that the warm water absorbs a part of temperature when passing through the interior of the container, takes away condensed attachments, such as fatty acid FFA, in the container and the collection bottle, and then returns to the interior of the warm water tank again after being pressurized by the water pump; the continuous cleaning is realized while the cooling is realized, the water is saved, the cost is reduced, a large amount of time is saved, and the continuous production is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of cold traps, and in particular relates to a cold trap for molecular distillation capable of cyclically reducing temperature. Background Art

[0002] In molecular distillation, the main function of the cold trap is to collect and condense the gas molecules in the distillation process to improve the distillation efficiency and protect the vacuum pump. Specifically, the cold trap condenses and captures the gas molecules whose condensation point temperature is higher than the cold trap temperature through its low-temperature surface. It can also capture specific gas molecules by setting the condensation temperature, that is, it can separate the gas. At the same time, the cold trap can also reduce the impact of corrosive gases on the vacuum pump. In the process of vacuuming, corrosive reagents are often encountered. These corrosive reagents will be converted into gas molecules during the vacuuming process and flow through the vacuum pump into the atmosphere through the pipeline. When the corrosive gas flows through the vacuum pump, it may cause damage to the vacuum pump. For example, acidic gas will corrode the metal parts of the vacuum pump. The use of a cold trap can condense and collect the corrosive gas before entering the vacuum pump, thereby reducing the damage of the corrosive gas to the vacuum pump.

[0003] In the prior art, the method used to clean the cold trap for molecular distillation is usually a method of cooling at room temperature, but this method is time-consuming and cannot achieve continuous production. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a cold trap for molecular distillation capable of circulating and cooling.

[0005] To achieve the above objectives, the utility model provides a cold trap for molecular distillation with cyclic cooling, comprising a container, a placement cavity is provided on the top of the outer wall of the container, a collecting bottle is fixedly connected to the bottom of the container, a connection port 1 is fixedly connected to the bottom of one side of the container, a connection port 2 is fixedly connected to the top of the side of the container away from the connection port 1, a fixing frame is sleeved on the outside of the container and fixedly connected, a fixing block with arms is inserted and fixedly connected to one side of the outer wall of the fixing frame, a support frame is fixedly connected to the inner side wall of the fixing block with arms, a fixing plate is fixedly connected to the upper and lower sides of the support frame, universal wheels are fixedly connected to the four corners of the bottom of the fixing plate located at the bottom of the support frame, a cooling and cleaning component is provided on the outside of the support frame, and the cooling and cleaning component is used to clean the interior of the container and reduce the temperature of the container.

[0006] In the above technical solution, further, the cleaning and cooling component includes a connecting pipe fixedly connected to the bottom of the collecting bottle, the end of the connecting pipe away from the collecting bottle is fixedly connected to a water pump, and the water pump is fixedly connected to the top of the fixed plate located at the bottom of the support frame through a mounting seat, the other end of the water pump is fixedly connected to a circulation pipe, the end of the circulation pipe away from the water pump is fixedly connected to a warm water tank, and the warm water tank is fixedly connected to the top of the fixed plate located at the top of the support frame, one side of the warm water tank is fixedly connected to a water inlet pipe, and the other end of the water inlet pipe is fixedly connected to the container.

[0007] In the above technical solution, further, the connecting pipe and the circulating pipe are respectively connected to the inlet end and the outlet end of the water pump.

[0008] In the above technical solution, further, one end of the connecting pipe close to the collecting bottle and one end of the water inlet pipe close to the warm water tank are both connected to control valves.

[0009] In the above technical solution, further, a spiral partition plate is fixedly connected between the inner wall of the container and the placement cavity.

[0010] In the above technical solution, further, a flow belt adapted to the outer shape of the partition plate is fixedly connected to the top of the partition plate, and the flow belt is fixedly connected to the outer wall of the placement cavity, an extension portion is connected to the side of the flow belt away from the placement cavity, an inner recess adapted to the outer shape of the extension portion is connected to the side of the flow belt away from the extension portion, and a flow cavity is opened on one side of the flow belt.

[0011] In the above technical solution, further, a spiral convex belt is fixedly connected to the outer wall of the placement cavity, and an adaption groove adapted to the shape of the convex belt is opened inside the container.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The warm water is stored inside the warm water tank. The whole molecular distillation system is closed, and the control valve is adjusted to open the warm water tank and the connecting pipe. The warm water inside the warm water tank naturally flows into the inside of the container through the water inlet pipe, and flows into the inside of the connecting pipe through the collecting bottle, and then returns to the inside of the warm water tank through the circulation pipe under pressure by the water pump. The advantage of this arrangement is that the warm water absorbs part of the temperature when passing through the inside of the container, and also takes away the condensed attachments inside the container and the collecting bottle, such as fatty acid FFA, and then returns to the inside of the warm water tank under pressure by the water pump, achieving cooling while also realizing continuous cleaning, saving water, reducing costs, and saving a lot of time, realizing continuous production;

[0014] The partition plate divides the space inside the container. No matter whether gas passes through or warm water flows through, it will spiral upward along the partition plate. In the process, the circulation time inside the container is prolonged, and it is fully in contact with the inner wall of the container and the outer wall of the placement cavity, so that the cleaning and condensation effects are better. By setting a convex belt and an adapter groove, a part protrudes compared to the flat outer wall of the placement cavity, so that the area of ​​this part is increased, thereby improving the condensation effect on the passing gas. By setting a flow belt, the attachments dripping from the convex belt can be collected, and the flow cavity is formed by the linkage of the protruding part and the concave part, so that the attachments can flow smoothly without being affected by the circulating gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a cold trap structure for molecular distillation that can cyclically cool down the temperature, as proposed by the utility model;

[0016] Figure 2 This is a schematic structural diagram of another perspective of a cold trap for molecular distillation capable of cyclic cooling proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of a cold trap container for molecular distillation that can cyclically cool down the temperature, as proposed by the utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0020] In the figure: 1. container; 2. fixing frame; 3. fixing block with arm; 4. support frame; 5. fixing plate; 6. universal wheel; 7. warm water tank; 8. connection port 1; 9. connection port 2; 10. collecting bottle; 11. connecting pipe; 12. water pump; 13. circulation pipe; 14. water inlet pipe; 15. placement cavity; 16. convex belt; 17. adapter groove; 18. partition plate; 19. flow belt; 20. extension part; 21. recessed part; 22. flow cavity. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1-Figure 5A cold trap for molecular distillation with cyclic cooling shown in the figure comprises a container 1, a placement cavity 15 is opened on the top of the outer wall of the container 1, a collecting bottle 10 is fixedly connected to the bottom of the container 1, a connection port 1 8 is fixedly connected to the bottom of one side of the container 1, and a connection port 2 9 is fixedly connected to the top of the side of the container 1 away from the connection port 1 8, a fixing frame 2 is sleeved and fixedly connected to the outside of the container 1, a fixing block 3 with arms is inserted and fixedly connected to one side of the outer wall of the fixing frame 2, a support frame 4 is fixedly connected to the inner side wall of the fixing block 3 with arms, a fixing plate 5 is fixedly connected to the upper and lower sides of the support frame 4, and universal wheels 6 are fixedly connected to the four corners of the bottom of the fixing plate 5 located at the bottom of the support frame 4.

[0023] The advantage of such a configuration is that a sealed environment is formed by providing a placement cavity 15, a condenser and a vacuum pump are respectively connected by providing a connection port 1 8 and a connection port 2 9, a collecting bottle 10 is provided to collect condensed gas, thereby ensuring the internal space of the container 1, an arm fixing block 3 and a fixing frame 2 are provided to fix and adjust the position of the container 1, and a placement cavity 15 is provided to place a refrigerant to lower the internal temperature of 1, such as dry ice.

[0024] A cooling and cleaning component is provided on the outer side of the support frame 4, which is used for cleaning the inside of the container 1 and reducing the temperature of the container 1. The cleaning and cooling component includes a connecting pipe 11 fixedly connected to the bottom of the collecting bottle 10, an end of the connecting pipe 11 away from the collecting bottle 10 is fixedly connected to a water pump 12, and the water pump 12 is fixedly connected to the top of the fixed plate 5 located at the bottom of the support frame 4 through a mounting seat, the other end of the water pump 12 is fixedly connected to a circulation pipe 13, an end of the circulation pipe 13 away from the water pump 12 is fixedly connected to a warm water tank 7, and the warm water tank 7 is fixedly connected to the top of the fixed plate 5 located at the top of the support frame 4, one side of the warm water tank 7 is fixedly connected to a water inlet pipe 14, and the other end of the water inlet pipe 14 is fixedly connected to the container 1, the connecting pipe 11 and the circulation pipe 13 are respectively connected to the inlet end and the output end of the water pump 12, and the end of the connecting pipe 11 close to the collecting bottle 10 and the end of the water inlet pipe 14 close to the warm water tank 7 are both connected to a control valve.

[0025] In the above arrangement, warm water is stored in the warm water tank 7. The whole molecular distillation system is closed, and the control valve is adjusted to open the warm water tank 7 and the connecting pipe 11. The warm water in the warm water tank 7 naturally flows into the container 1 through the water inlet pipe 14, and flows into the connecting pipe 11 through the collecting bottle 10, and then returns to the warm water tank 7 through the circulation pipe 13 under pressure by the water pump 12. The advantage of this arrangement is that the warm water absorbs part of the temperature when passing through the container 1, and also takes away the condensed attachments inside the container 1 and the collecting bottle 10, such as fatty acid FFA, and then returns to the warm water tank 7 under pressure by the water pump 12. While achieving cooling, continuous cleaning is also realized, which saves water, reduces costs, and saves a lot of time to achieve continuous production.

[0026] A spiral partition plate 18 is fixedly connected between the inner wall of the container 1 and the placement cavity 15, a flow belt 19 matched with the outer shape of the partition plate 18 is fixedly connected to the top of the partition plate 18, and the flow belt 19 is fixedly connected to the outer wall of the placement cavity 15, and the side of the flow belt 19 away from the placement cavity 15 is connected with an extension portion 20, and the side of the flow belt 19 away from the extension portion 20 is connected with an inner recessed portion 21 matched with the outer shape of the extension portion 20, a flow cavity 22 is provided on one side of the flow belt 19, a spiral convex belt 16 is fixedly connected to the outer wall of the placement cavity 15, and an adaption groove 17 matched with the outer shape of the convex belt 16 is provided inside the container 1.

[0027] The advantage of such a configuration is that the partition plate 18 divides the space inside the container 1. Whether gas or warm water flows through, it will spiral upward along the partition plate 18. In the process, the circulation time inside the container 1 is prolonged, and the gas is fully in contact with the inner wall of the container 1 and the outer wall of the placement cavity 15, so that the cleaning and condensation effects are better. By setting the convex belt 16 and the adaptor groove 17, a part protrudes compared to the flat outer wall of the placement cavity 15, so that the area of ​​this part is increased, thereby improving the condensation effect on the passing gas. By setting the flow belt 19, the attachments dripping from the convex belt 16 can be collected, and the flow cavity 22 is formed by the linkage of the protruding part 20 and the inner recessed part 21, so that the attachments can flow smoothly without being affected by the circulating gas.

[0028] Working principle:

[0029] The placement cavity 15 is provided to form a sealed environment, the connection port 1 8 and the connection port 2 9 are provided to connect the condenser and the vacuum pump respectively, the collection bottle 10 is provided to collect the condensed gas, so as to ensure the internal space of the container 1, the arm fixing block 3 and the fixing frame 2 are provided to fix and adjust the position of the container 1, and the placement cavity 15 is provided to place a refrigeration substance to reduce the internal temperature of 1, such as dry ice;

[0030] Warm water is stored in the warm water tank 7. The whole molecular distillation system is closed, and the control valve is adjusted to open the warm water tank 7 and the connecting pipe 11. The warm water in the warm water tank 7 naturally flows into the container 1 through the water inlet pipe 14, and flows into the connecting pipe 11 through the collecting bottle 10, and then returns to the warm water tank 7 through the circulation pipe 13 under pressure by the water pump 12. The advantage of this arrangement is that the warm water absorbs part of the temperature when passing through the container 1, and also takes away the condensed attachments such as fatty acid FFA located inside the container 1 and the collecting bottle 10, and then returns to the warm water tank 7 under pressure by the water pump 12. While achieving cooling, continuous cleaning is also achieved, saving water, reducing costs, and saving a lot of time, thereby achieving continuous production.

[0031] The partition plate 18 divides the space inside the container 1. No matter whether gas or warm water passes through, it will spiral upward along the partition plate 18. In the process, the circulation time inside the container 1 is prolonged, and it is fully in contact with the inner wall of the container 1 and the outer wall of the placement cavity 15, so that the cleaning and condensation effects are better. By setting the convex belt 16 and the adaptation groove 17, a part protrudes compared to the flat outer wall of the placement cavity 15, so that the area of ​​this part is increased, thereby improving the condensation effect on the passing gas. By setting the flow belt 19, the attachments dripping from the convex belt 16 can be collected, and the flow cavity 22 is formed by the linkage of the extension part 20 and the inner recessed part 21, so that the attachments can flow smoothly without being affected by the circulating gas.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A cold trap for molecular distillation capable of cyclic cooling, comprising a container (1), characterized in that: The top of the outer wall of the container (1) is provided with a placement cavity (15); the bottom of the container (1) is fixedly connected to a collecting bottle (10); the bottom of one side of the container (1) is fixedly connected to a connection port 1 (8); the top of the side of the container (1) away from the connection port 1 (8) is fixedly connected to a connection port 2 (9); a fixed frame (2) is sleeved on the outside of the container (1) and fixedly connected; a fixed block (3) with an arm is inserted and fixedly connected to one side of the outer wall of the fixed frame (2); the inner side wall of the fixed block (3) with an arm is fixedly connected to a support frame (4); the upper and lower sides of the support frame (4) are fixedly connected to a fixed plate (5); and the four bottom corners of the fixed plate (5) located at the bottom of the support frame (4) are fixedly connected to universal wheels (6); A cooling and cleaning component is arranged on the outside of the support frame (4), and the cooling and cleaning component is used to clean the inside of the container (1) and reduce the temperature of the container (1).

2. A cold trap for molecular distillation capable of cyclic cooling according to claim 1, characterized in that: The cooling and cleaning component comprises a connecting pipe (11) fixedly connected to the bottom of the collecting bottle (10); one end of the connecting pipe (11) away from the collecting bottle (10) is fixedly connected to a water pump (12), and the water pump (12) is fixedly connected to the top of the fixing plate (5) located at the bottom of the support frame (4) through a mounting seat; the other end of the water pump (12) is fixedly connected to a circulation pipe (13); one end of the circulation pipe (13) away from the water pump (12) is fixedly connected to a warm water tank (7), and the warm water tank (7) is fixedly connected to the top of the fixing plate (5) located at the top of the support frame (4); one side of the warm water tank (7) is fixedly connected to a water inlet pipe (14), and the other end of the water inlet pipe (14) is fixedly connected to the container (1).

3. A cold trap for molecular distillation capable of cyclic cooling according to claim 2, characterized in that: The connecting pipe (11) and the circulating pipe (13) are respectively connected to the inlet end and the outlet end of the water pump (12).

4. A cold trap for molecular distillation capable of cyclic cooling according to claim 2, characterized in that: One end of the connecting pipe (11) close to the collecting bottle (10) and one end of the water inlet pipe (14) close to the warm water tank (7) are both connected to control valves.

5. A cold trap for molecular distillation capable of cyclic cooling according to claim 1, characterized in that: A spiral partition plate (18) is fixedly connected between the inner wall of the container (1) and the placement cavity (15).

6. A cold trap for molecular distillation capable of cyclic cooling according to claim 5, characterized in that: A flow belt (19) matching the outer shape of the partition plate (18) is fixedly connected to the top of the partition plate (18), and the flow belt (19) is fixedly connected to the outer wall of the placement cavity (15); a side of the flow belt (19) away from the placement cavity (15) is connected to an extension portion (20); a side of the flow belt (19) away from the extension portion (20) is connected to an inner recess (21) matching the outer shape of the extension portion (20); and a flow cavity (22) is provided on one side of the flow belt (19).

7. A cold trap for molecular distillation capable of cyclic cooling according to claim 1, characterized in that: A spiral convex belt (16) is fixedly connected to the outer wall of the placement cavity (15), and an adaption groove (17) matching the shape of the convex belt (16) is provided inside the container (1).

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