A marine air cooler with electric defrosting structure

Abstract

The present application relates to a marine air cooler with an electric defrosting structure, comprising a machine body, at least one group of electric heating coils and a plurality of heat exchange fins arranged at intervals and vertically arranged in the machine body, a plurality of positioning insertion areas are evenly and spacedly arranged on each layer of the pipeline of the electric heating coil in the machine body, the positions and numbers of the positioning insertion areas on different layers of the pipeline of each group of electric heating coils correspond one to one, and the heat exchange fins are inserted one to one in all the positioning insertion areas on different layers of the pipeline of each group of electric heating coils in the same vertical plane; the bottom end of the heat exchange fin is located below the electric heating coil, and the bottom ends of all the heat exchange fins located at least on the same electric heating coil are connected and fixed by a locking assembly. The present application can effectively improve the defects of inconvenience in assembly, maintenance, and repair caused by the installation and fixing method of the heat exchange fins and the corresponding pipelines.

Description

Technical Field

[0001] The present application relates to the field of air coolers, and in particular to a marine air cooler with an electric defrosting structure. Background Art

[0002] During the continuous operation of the cold storage air cooler, if its surface temperature drops below the dew point temperature of the surrounding air and further below the triple point temperature of water, the water vapor in the air will condense on the fin surface of the air cooler, which will cause the evaporator coil to form a frost layer. The accumulation of this frost layer will gradually reduce the heat exchange efficiency of the air cooler, causing a sharp increase in energy consumption, while weakening its freezing and refrigeration efficiency. Therefore, timely execution of defrosting operations becomes extremely critical, and it is a necessary condition to ensure that the cold storage system can operate efficiently and stably.

[0003] For example, an electromagnetic defrost air cooler with Chinese patent publication number CN113432369A includes an air cooler body, and air cooler heat exchange fin groups are arranged between the through plate and the middle plate of the body and between the mounting plate and the middle plate. The air cooler heat exchange fin group is composed of a plurality of heat exchange fins arranged at equal intervals. A plurality of air cooler heat exchange tubes are horizontally interspersed in the air cooler heat exchange fin group. The plurality of air cooler heat exchange tubes are evenly distributed in a serpentine coil in the air cooler heat exchange fin group. The two ends of the air cooler heat exchange tube body are an inlet end and an outlet end. The inlet end and the outlet end of the air cooler heat exchange tube are both arranged through the right side of the mounting plate, and the middle parts of the plurality of air cooler heat exchange tubes are interspersed and fixed in the middle plate.

[0004] The inventor believes that although this defrosting effect is relatively good, the assembly of the heat exchange fins and the heat exchange tubes will be more troublesome. One is that after the heat exchange tubes and the heat exchange fins are produced, special assembly tools are needed to install the heat exchange fins on the heat exchange tubes one by one, and corresponding fixing measures are adopted. This means that once a problem occurs with the product, all of them can only be replaced. Although the method is relatively simple and crude, the loss of manufacturing materials is also relatively large. Summary of the invention

[0005] In order to effectively improve the inconvenience caused by the installation and fixing method of heat exchange fins and corresponding pipelines in assembly, maintenance and repair.

[0006] The present application provides a marine air cooler with an electric defrost structure, which adopts the following technical solution:

[0007] A marine air cooler with an electric defrost structure comprises a machine body, wherein at least one group of electric heating coils and a plurality of heat exchange fins arranged at intervals and vertically are arranged in the machine body, a plurality of positioning insertion areas are evenly and spaced apart on each layer of the pipeline of the electric heating coils in the machine body, the positions and numbers of the positioning insertion areas on different layers of the pipeline of each group of electric heating coils correspond one to one, and the heat exchange fins are inserted one to one in all the positioning insertion areas on different layers of the pipeline of each group of electric heating coils in the same vertical plane; the bottom end of the heat exchange fin is located below the electric heating coil, and the bottom ends of all the heat exchange fins located at least on the same electric heating coil are connected and fixed by a locking assembly.

[0008] In some embodiments, the positioning and insertion area includes two symmetrically arranged heat-conducting clips spaced apart on the electric heating coil pipeline, and a space is formed between the two heat-conducting clips for the heat exchange fins to be inserted and passed through.

[0009] In some embodiments, the heat-conducting clips corresponding to each other on adjacent layers of pipelines of each group of the electric heating coils are spaced apart from each other or are in conflict with each other or are fixedly connected.

[0010] In some embodiments, the heat-conducting clips corresponding to each other on adjacent pipelines of adjacent groups of the electric heating coils are spaced apart from each other or are in conflict with each other or are fixedly connected.

[0011] In some embodiments, the heat exchange fin includes a fin body, which is provided with at least one slot, the slot opening of the slot is connected to the lower end surface of the fin body, the slot bottom is close to the upper end surface of the fin body, and the width of the slot is adapted to the outer diameter of the pipe of the electric heating coil.

[0012] In some embodiments, the locking assembly includes two symmetrical and transversely arranged heat exchange locking plates, the two heat exchange locking plates are respectively located on opposite sides of the lower end of the heat exchange fin, and at least one corresponding end of the two heat exchange locking plates is fixedly connected.

[0013] In some embodiments, the two transverse end surfaces of the heat exchange locking plate are respectively flush with the end surfaces of the heat exchange fins at the outermost positions, and at least one of the transverse end surfaces of the heat exchange locking plate is provided with a locking end plate facing inward, and the inner end surface of the locking end plate is in close contact with the end surface of the heat exchange fin at the corresponding position.

[0014] In some embodiments, there is a gap between the locking end plate and the locking end plate of another heat exchange locking plate, and adjacent locking end plates are fixedly connected by a connecting plate.

[0015] In some embodiments, a plurality of transversely arranged heat exchange ridges are spaced apart on the outer side surface of the heat exchange locking plate.

[0016] In some embodiments, the inner side surface of the heat exchange locking plate is provided with a plurality of laterally arranged positioning ridges at intervals, and the outer edge of the lower end of each heat exchange fin is provided with a plurality of tooth-shaped grooves whose positions and quantities match the positioning ridges.

[0017] In summary, the present application includes at least one of the following beneficial technical effects: by installing the heat exchange fins in a plug-in manner and pre-setting the corresponding insertion area on the electric heating coil, on the one hand, the heat transfer surface can be increased through the heat exchange area, and on the other hand, the installation, maintenance, and repair of the heat exchange fins can be facilitated through the insertion area. At the same time, the bottom of the heat exchange fins is locked with a locking assembly to ensure that the heat exchange fins will not loosen after insertion, thereby ensuring the stability of the structure and effectively improving the defects of the inconvenience in assembly, maintenance, and repair caused by the installation and fixing method of the heat exchange fins and the corresponding pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a marine air cooler with an electric defrost structure according to an embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the assembly structure of the heat exchange fins and the electric heating coil according to an embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of the structure of the electric heating coil according to an embodiment of the present application.

[0021] Figure 4 yes Figure 2 Enlarged schematic diagram of part B in the middle.

[0022] Figure 5 It is a schematic diagram of the structure of the heat exchange fins of an embodiment of the present application.

[0023] Figure 6 yes Figure 2 Enlarged schematic diagram of part A in the middle.

[0024] Figure 7 It is a schematic diagram of the structure of the heat exchange locking plate of an embodiment of the present application.

[0025] Explanation of the reference numerals: 1. body; 2. electric heating coil; 3. heat exchange fin; 4. heat conductive clip; 5. slot; 6. barrier fin; 7. heat exchange locking plate; 8. locking end plate; 9. connecting plate; 10. heat exchange rib; 11. positioning rib; 12. toothed groove. DETAILED DESCRIPTION

[0026] The following is combined with Figures 1 to 7 This application is described in further detail.

[0027] The present application discloses a marine air cooler with an electric defrosting structure. Figure 1 ,2 , including a body 1, in which at least one group of electric heating coils 2 and a plurality of spaced and vertically arranged heat exchange fins 3 are arranged. The electric heating coils 2 are generally composed of a plurality of transverse tubes and a plurality of connecting elbows. The two outermost transverse tubes are respectively provided with ports for external connection. The plane where the electric heating coils 2 are located can be arranged horizontally or vertically according to actual installation requirements, or can be arranged horizontally and vertically in a staggered manner. When staggered, it is necessary to pay attention to that the pipes of different groups of electric heating coils 2 should maintain a distance from each other. In this embodiment, the vertical arrangement of the electric heating coils 2 is taken as an example for explanation.

[0028] In this embodiment, a plurality of positioning insertion areas are evenly and spaced apart on each layer of the pipeline of the electric heating coil 2 in the body 1, the positions and numbers of the positioning insertion areas on different layers of the pipeline of each group of the electric heating coil 2 correspond one to one, and the heat exchange fins 3 are inserted one to one in all the positioning insertion areas on different layers of the pipeline of each group of the electric heating coil 2 that are in the same vertical plane.

[0029] Reference Figure 3 , 4 , wherein the positioning insertion area includes two symmetrically arranged heat-conducting clips 4 arranged at intervals on the pipeline of the electric heating coil 2, and a space for the heat exchange fins 3 to be inserted and passed is formed between the two heat-conducting clips 4. Generally, the shape of the heat-conducting clips 4 is not limited and can be set according to actual needs. Usually, when the heat-conducting clips 4 are relatively large, the heat conduction efficiency will be correspondingly improved; in addition, the heat-conducting clips 4 corresponding to the positions on the adjacent layers of the pipeline of each group of electric heating coils 2 are spaced or conflict with each other or fixedly connected; the heat-conducting clips 4 corresponding to the positions on the adjacent pipelines of adjacent groups of electric heating coils 2 are spaced or conflict with each other or fixedly connected; on the one hand, the heat-conducting clips 4 can form a positioning insertion area, and when the spacing between adjacent heat-conducting clips 4 on the same layer of pipeline is the same, the blind insertion effect of the heat exchange fins 3 can be improved. It should be noted that each layer of each group of electric heating coils 2 refers to a horizontal tube located at different heights in a vertical plane.

[0030] Reference Figure 5 The heat exchange fin 3 includes a fin body, and the fin body is provided with at least one slot 5. In this embodiment, three groups of electric heating coils 2 are taken as an example, and the slots 5 are also three groups. When there are multiple groups of slots 5, barrier fins 6 are provided between adjacent slots 5. The slots of the slots 5 are connected to the lower end surface of the fin body, and the bottom of the slots 5 is close to the upper end surface of the fin body. The width of the slots 5 is adapted to the outer diameter of the pipeline of the electric heating coil 2. The present structural design can realize quick insertion, and is convenient in assembly, maintenance, and repair, and will not have much impact on heat exchange. In addition, the presence of the heat conductive clip 4 can improve the heat exchange efficiency to a certain extent.

[0031] Reference Figure 6 , 7The bottom end of the heat exchange fin 3 is located below the electric heating coil 2, and the bottom ends of all the heat exchange fins 3 on at least the same electric heating coil 2 are connected and fixed by a locking assembly, wherein the locking assembly includes two symmetrical and transversely arranged heat exchange locking pieces 7, the two heat exchange locking pieces 7 are respectively located on the opposite sides of the lower end of the heat exchange fin 3, and at least one of the corresponding ends of the two heat exchange locking pieces 7 is fixedly connected, generally one end can be connected to one body through a connecting piece, or both ends are not directly connected; in this embodiment, the two end faces of the heat exchange locking piece 7 are respectively flush with the end faces of the heat exchange fin 3 located at the outermost position, and at least one of the transverse end faces of the heat exchange locking piece 7 is provided with a locking end plate 8 in the inner direction, the inner end face of the locking end plate 8 is tightly attached to the end face of the heat exchange fin 3 at the corresponding position, and there is a gap between the locking end plate 8 and the locking end plate 8 of another heat exchange locking piece 7, and adjacent locking end plates 8 are fixedly connected by a connecting plate 9.

[0032] In order to improve the heat transfer efficiency and make better use of the internal components, refer to Figure 6 The outer side surface of the heat exchange locking plate 7 is provided with a plurality of heat exchange convex strips 10 arranged transversely at intervals; Figure 7 The inner side surface of the heat exchange locking plate 7 is provided with a plurality of transversely arranged positioning ridges 11 at intervals, and the outer edge of the lower end of each heat exchange fin 3 is provided with a plurality of tooth-shaped grooves 12 whose positions and quantities match the positioning ridges 11.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A marine air cooler with an electric defrosting structure, comprising a body (1), characterized in that: At least one group of electric heating coils (2) and a plurality of heat exchange fins (3) arranged at intervals and vertically are arranged in the machine body (1); a plurality of positioning insertion areas are evenly and spaced apart on each layer of the pipeline of the electric heating coils (2) in the machine body (1); the positions and numbers of the positioning insertion areas on different layers of the pipeline of each group of electric heating coils (2) correspond one to one; the heat exchange fins (3) are inserted one to one in all the positioning insertion areas on different layers of the pipeline of each group of electric heating coils (2) that are in the same vertical plane; the bottom end of the heat exchange fin (3) is located below the electric heating coil (2); and the bottom ends of all the heat exchange fins (3) located on at least the same electric heating coil (2) are connected and fixed by a locking assembly.

2. A marine air cooler with an electric defrosting structure according to claim 1, characterized in that: The positioning insertion area comprises two symmetrically arranged heat-conducting clips (4) spaced apart on the pipeline of the electric heating coil (2), and a space is formed between the two heat-conducting clips (4) for the heat exchange fins (3) to be inserted and passed through.

3. A marine air cooler with an electric defrosting structure according to claim 2, characterized in that: The heat-conducting clips (4) at corresponding positions on adjacent layers of pipelines of each group of electric heating coils (2) are spaced apart from each other or are in contact with each other or are fixedly connected.

4. A marine air cooler with an electric defrosting structure according to claim 2, characterized in that: The heat-conducting clips (4) at corresponding positions on adjacent pipelines of adjacent groups of the electric heating coils (2) are spaced apart from each other or are in contact with each other or are fixedly connected.

5. The marine air cooler with electric defrosting structure according to claim 1, characterized in that: The heat exchange fin (3) comprises a fin body, on which is provided at least one slot (5), the slot opening of the slot (5) being connected to the lower end surface of the fin body, the slot bottom of the slot (5) being close to the upper end surface of the fin body, and the width of the slot (5) being adapted to the outer diameter of the pipeline of the electric heating coil (2).

6. The marine air cooler with electric defrosting structure according to claim 1, characterized in that: The locking assembly comprises two symmetrical and transversely arranged heat exchange locking plates (7), the two heat exchange locking plates (7) being respectively located on opposite sides of the lower end of the heat exchange fin (3), and at least one corresponding end of the two heat exchange locking plates (7) being fixedly connected.

7. A marine air cooler with an electric defrosting structure according to claim 6, characterized in that: The heat exchange locking plate (7) has two transverse end surfaces that are flush with the end surfaces of the heat exchange fins (3) located at the outermost positions, and at least one of the transverse end surfaces of the heat exchange locking plate (7) is provided with a locking end plate (8) inwardly, and the inner end surface of the locking end plate (8) is in close contact with the end surface of the heat exchange fin (3) at the corresponding position.

8. A marine air cooler with an electric defrosting structure according to claim 7, characterized in that: There is a gap between the locking end plate (8) and the locking end plate (8) of another heat exchange locking plate (7), and adjacent locking end plates (8) are fixedly connected via a connecting plate (9).

9. The marine air cooler with electric defrosting structure according to claim 6, characterized in that: The outer side surface of the heat exchange locking plate (7) is provided with a plurality of heat exchange convex strips (10) arranged transversely at intervals.

10. The marine air cooler with electric defrosting structure according to claim 6, characterized in that: The inner side surface of the heat exchange locking plate (7) is provided with a plurality of transversely arranged positioning convex strips (11) at intervals, and the outer edge of the lower end of each heat exchange fin (3) is provided with a plurality of tooth-shaped grooves (12) whose positions and numbers match the positioning convex strips (11).

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