Drying oven cooling structure and vacuum drying oven

Abstract

The drying oven cooling structure comprises an inner container and a cooling assembly, the cooling assembly comprises a water cooling loop, a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe communicate with the water cooling loop, the water cooling loop is fixedly arranged on the outer wall face of the inner container, and the water cooling loop is a sealed pipeline and is laid on the outer wall face of the inner container; the water cooling loop is made of a copper material; the water cooling loop is arranged on the outer wall of the inner container, heat transfer is achieved between the water cooling loop and the inner container, waste heat of the inner container is taken away, the inner container of the vacuum oven is rapidly cooled under the closed condition, and the cooling time of the vacuum oven is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum boxes, in particular to an oven cooling structure and a vacuum oven. Background Art

[0002] Vacuum oven is a vacuum drying oven, which is widely used in research and application fields such as biochemistry, chemical pharmaceuticals, medical care, agricultural research, and environmental protection. It is used for powder drying, baking, and disinfection and sterilization of various glass containers. It is suitable for fast and efficient drying of heat-sensitive, easily decomposable, easily oxidizable substances and items with complex components.

[0003] After the existing oven dries the material at high temperature, the dried material has a high temperature, and subsequent operations can only be carried out after the material has completely cooled down to room temperature naturally. During use, the product may need to be cooled down urgently without opening the door, and ordinary cooling is time-consuming and slow. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present application provides an oven cooling structure and a vacuum oven.

[0005] The present application discloses an oven cooling structure comprising: an inner tank and a cooling component, wherein the cooling component comprises a water cooling circuit, a water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are respectively connected to the water cooling circuit, and the water cooling circuit is fixed on the outer wall of the inner tank.

[0006] Preferably, the water cooling circuit includes two side tube groups and a connecting tube group, the connecting tube group is arranged on the rear wall of the inner tank, one end of which extends to the top wall of the inner tank, and the other end extends to the bottom wall of the inner tank, one side tube group is arranged on one side wall of the inner tank, and the other side tube group is arranged on the other side wall of the inner tank, both side tube groups are connected with the connecting tube group, the water inlet pipe is connected with one side tube group, and the water outlet pipe is connected with the other side tube group.

[0007] Preferably, the side pipe group includes a plurality of water-cooling plates and a plurality of connecting plates, the plurality of water-cooling plates are arranged at intervals on the side wall of the inner tank, and the connecting plate connects two adjacent water-cooling plates.

[0008] Preferably, the cross-section of the water-cooling plate is square, and the water-cooling plate fits closely to the inner tank.

[0009] Preferably, it also includes a heating assembly, which includes a plurality of first heating elements, and the plurality of first heating elements are all arranged in the inner tank.

[0010] Preferably, the heating assembly further comprises a plurality of second heating elements, which are arranged on the outer wall of the inner tank and between two adjacent water cooling plates.

[0011] Preferably, the second heating elements are symmetrically distributed on both sides of the inner container.

[0012] Preferably, the second heating element is a U-shaped heating tube.

[0013] According to another aspect of the present utility model, a vacuum oven disclosed in the present application includes an oven cooling structure.

[0014] The beneficial effect of the present application is that a water cooling circuit is arranged on the outer wall of the inner tank, and heat is transferred between the water cooling circuit and the inner tank to take away the residual heat of the inner tank, so that the inner tank of the vacuum oven is quickly cooled down under closed conditions, greatly shortening the cooling time of the vacuum oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a three-dimensional diagram of the cooling structure of the oven in Example 1;

[0017] Figure 2 It is a schematic diagram of the coordination relationship between the water cooling circuit structure and the inner tank in the first embodiment;

[0018] Figure 3 This is a schematic diagram of the coordination relationship between the second heating element and the water cooling plate in the first embodiment;

[0019] Figure 4 This is a three-dimensional diagram of the vacuum oven in Example 2.

[0020] Reference numerals:

[0021] 10- oven cooling structure; 100- vacuum oven;

[0022] 1-Inner tank; 2-Cooling component; 3-Heating component;

[0023] 11- opening; 12- top wall; 13- bottom wall; 14- side wall;

[0024] 21- water cooling circuit; 22- water inlet pipe; 23- water outlet pipe;

[0025] 31-first heating element; 32-second heating element;

[0026] 211-side pipe group; 212-connecting pipe group;

[0027] 2111-water cooling plate; 2112-connecting plate. DETAILED DESCRIPTION

[0028] The following will disclose multiple embodiments of the present application with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present application. In other words, in some embodiments of the present application, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0029] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, in the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0031] In order to further understand the application content, features and effects of the present application, the following embodiments are cited and described in detail with reference to the accompanying drawings.

[0032] Embodiment 1

[0033] See also Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a three-dimensional diagram of the oven cooling structure in Example 1. Figure 2 This is a schematic diagram of the relationship between the water cooling circuit structure and the inner tank. Figure 3 It is a schematic diagram of the cooperation relationship between the second heating element and the water cooling plate. The oven cooling structure in this example includes an inner tank 1 and a cooling component 2. The inner tank 1 is used to accommodate the product to be dried, and the cooling component 2 is used to cool the inner tank 1.

[0034] The cooling component 2 includes a water cooling circuit 21 , a water inlet pipe 22 and a water outlet pipe 23 . The water inlet pipe 22 and the water outlet pipe 23 are respectively connected to the water cooling circuit 21 . The water cooling circuit 21 is fixed on the outer wall of the inner tank 1 .

[0035] Specifically, the inner tank 1 is in a cubic shape and has an opening 11. The water cooling circuit 21 is a sealed pipeline laid on the outer wall of the inner tank 1. The water cooling circuit 21 is made of a material with excellent thermal conductivity. In this example, the water cooling circuit 21 is made of copper, and the water inlet pipe 22 and the water outlet pipe 23 are respectively connected to the water cooling circuit 21.

[0036] During application, after the vacuum oven dries the product to be dried, when it is necessary to cool down the vacuum oven in time, cold water can be injected into the water cooling circuit 21 through the water inlet pipe 22, and the cold water flows from one end of the water cooling circuit 21 to the other end, and flows out of the water cooling circuit 21 through the water outlet pipe 23. The water cooling circuit 21 is in close contact with the outer wall of the inner liner 1, thereby accelerating the cooling of the inner liner 1. The water inlet can also inject other liquids that can achieve the cooling effect into the water cooling circuit 21. Preferably, a chiller can be arranged outside the vacuum oven, and the water inlet pipe 22 and the water outlet pipe 23 are connected to the chiller to realize ice water circulation and achieve the effect of saving water.

[0037] By setting a water cooling circuit 21 on the outer wall of the inner tank 1, the water cooling circuit 21 and the inner tank 1 achieve heat transfer, and the residual heat of the inner tank 1 is taken away, so that the inner tank 1 of the vacuum oven is quickly cooled under closed conditions, which greatly shortens the cooling time of the vacuum oven.

[0038] Furthermore, the water cooling circuit 21 includes two side tube groups 211 and a connecting tube group 212. The connecting tube group 212 is arranged on the rear wall of the inner tank 1, one end of which extends to the top wall 12 of the inner tank 1, and the other end extends to the bottom wall 13 of the inner tank 1. One side tube group 211 is arranged on one side wall 14 of the inner tank 1, and the other side tube group 211 is arranged on the other side wall 14 of the inner tank 1. The two side tube groups 211 are connected to the connecting tube group 212, the water inlet pipe 22 is connected to one side tube group 211, and the water outlet pipe 23 is connected to the other side tube group 211.

[0039] Specifically, the inner tank 1 has a top wall 12, a bottom wall 13, two side walls 14 and a wall surface relative to the outlet. The connecting pipe group 212 is installed on the wall surface relative to the outlet of the inner tank 1, one end of which extends to the top wall 12, and the other end extends to the bottom wall 13. The connecting pipe group 212 is in contact with the wall surface relative to the outlet of the inner tank 1, the top wall 12 and the bottom wall 13. The two side pipe groups 211 are respectively arranged on the two side walls 14 of the inner tank 1, and the two side pipe groups 211 are both connected to the connecting pipe group 212. The water inlet pipe 22 is connected to one of the side pipe groups 211, and the water outlet pipe 23 is connected to the other side pipe group 211.

[0040] In this way, the water cooling circuit 21 covers the peripheral wall of the inner tank 1 except the opening 11, achieving maximum contact between the water cooling circuit 21 and the inner tank 1, improving the heat exchange speed between the water cooling circuit 21 and the inner tank 1, and accelerating the cooling speed of the inner tank 1.

[0041] Furthermore, the side pipe group 211 includes a plurality of water-cooling plates 2111 and a plurality of connecting plates 2112 . The plurality of water-cooling plates 2111 are spaced apart on the side wall 14 of the inner tank 1 . The connecting plate 2112 connects two adjacent water-cooling plates 2111 .

[0042] Specifically, the water-cooled plate 2111 is vertically connected to the connecting tube group 212, part of the connecting plate 2112 is located at one end of the water-cooled plate 2111 facing away from the connecting tube group 212, and is respectively located between two adjacent water-cooled plates 2111, part of the connecting plate 2112 is located at one end of the water-cooled plate 2111 facing the connecting tube group 212, and is respectively located between two adjacent water-cooled plates 2111, and the water inlet pipe 22 or the water outlet pipe 23 is connected to one of the connecting plates 2112 close to the connecting tube group 212.

[0043] In this way, the cold water entering the side pipe group 211 and the connecting pipe group 212 from the water inlet pipe 22 can circulate in the entire water cooling circuit 21 , thereby increasing the flow efficiency of the cold water in the water cooling circuit 21 .

[0044] Furthermore, the cross-section of the water cooling plate 2111 is square, and the water cooling plate 2111 fits closely with the inner tank 1 .

[0045] Thus, compared with the cylindrical tube column, the square cross-section of the water cooling plate 2111 can further increase the contact area between the water cooling circuit 21 and the inner tank 1, thereby improving the cooling speed of the inner tank 1.

[0046] Furthermore, it also includes a heating component 3 , which includes a plurality of first heating elements 31 , and the plurality of first heating elements 31 are all disposed in the inner pot 1 .

[0047] Specifically, the first heating element 31 is an electric heating plate, and a plurality of electric heating plates are arranged in parallel and at intervals in the inner pot 1, and the plurality of electric heating plates are distributed at equal distances.

[0048] In this way, the uniform heating of the product to be dried is ensured.

[0049] Furthermore, the heating assembly 3 also includes a plurality of second heating elements 32 . The second heating elements 32 are disposed on the outer wall of the inner tank 1 and are located between two adjacent water cooling plates 2111 .

[0050] Specifically, the second heating element 32 is disposed between two adjacent water-cooling plates 2111 , that is, the second heating element 32 is disposed on the two side walls 14 of the inner container 1 .

[0051] In this way, the heating efficiency of the vacuum oven is improved.

[0052] Furthermore, the second heating elements 32 are symmetrically distributed on both sides of the inner container 1, and the second heating elements 32 are U-shaped heating tubes.

[0053] In this way, the vacuum oven heats more evenly and the drying effect is better.

[0054] Embodiment 2

[0055] See also Figure 4 , Figure 4 It is a three-dimensional diagram of a vacuum oven. The vacuum oven 100 in this example includes an oven cooling structure 10 .

[0056] In summary, by arranging a water cooling circuit on the outer wall of the inner tank, the water cooling circuit and the inner tank realize heat transfer, and the residual heat of the inner tank is taken away, so that the inner tank of the vacuum oven is quickly cooled down under closed conditions, which greatly shortens the cooling time of the vacuum oven.

[0057] The above is only the implementation mode of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An oven cooling structure, characterized in that: include: An inner tank (1) and a cooling component (2), wherein the cooling component (2) comprises a water cooling circuit (21), a water inlet pipe (22) and a water outlet pipe (23), wherein the water inlet pipe (22) and the water outlet pipe (23) are respectively connected to the water cooling circuit (21), and the water cooling circuit (21) is fixedly arranged on the outer wall surface of the inner tank (1).

2. The oven cooling structure according to claim 1, characterized in that: The water cooling circuit (21) comprises two side tube groups (211) and a connecting tube group (212); the connecting tube group (212) is arranged on the rear wall surface of the inner tank (1), one end of which extends to the top wall of the inner tank (1), and the other end extends to the bottom wall of the inner tank (1); wherein one side tube group (211) is arranged on one side wall of the inner tank (1), and the other side tube group (211) is arranged on the other side wall of the inner tank (1); both side tube groups (211) are connected to the connecting tube group (212); the water inlet pipe (22) is connected to one of the side tube groups (211), and the water outlet pipe (23) is connected to the other side tube group (211).

3. The oven cooling structure according to claim 2, characterized in that: The side tube group (211) comprises a plurality of water-cooling plates (2111) and a plurality of connecting plates (2112); the plurality of water-cooling plates (2111) are arranged at intervals on the side wall of the inner tank (1); and the connecting plate (2112) connects two adjacent water-cooling plates (2111).

4. The oven cooling structure according to claim 3, characterized in that: The water cooling plate (2111) has a square cross-section, and the water cooling plate (2111) is fitted to the inner liner (1).

5. The oven cooling structure according to claim 3, characterized in that: It also comprises a heating component (3), wherein the heating component (3) comprises a plurality of first heating elements (31), and the plurality of first heating elements (31) are all arranged in the inner container (1).

6. The oven cooling structure according to claim 5, characterized in that: The heating assembly (3) further comprises a plurality of second heating elements (32), wherein the second heating elements (32) are arranged on the outer wall of the inner tank (1) and are located between two adjacent water cooling plates (2111).

7. The oven cooling structure according to claim 6, characterized in that: The second heating elements (32) are symmetrically distributed on both sides of the inner container (1).

8. The oven cooling structure according to claim 6, characterized in that: The second heating element (32) is a U-shaped heating tube.

9. A vacuum oven, characterized in that: The invention comprises the oven cooling structure described in any one of claims 1 to 8.

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