Ice-making evaporator

Abstract

The utility model relates to an ice-making evaporator which comprises a plurality of ice-making columns and a refrigerant pipeline which is connected with the ice-making columns and used for circulation of refrigerant, the refrigerant pipeline comprises capillary tubes for injecting the refrigerant, refrigerating tubes connected among the ice-making columns, liquid outlet tubes for the refrigerant to flow out, and a gas return tube for injecting gas, the ice-making columns are sequentially connected through the refrigerating pipes, the first ice-making pipe and the second ice-making pipe are inserted into the upper ends of the ice-making columns in a connected mode, a port of the first ice-making pipe extends into the bottoms of inner cavities of the ice-making columns, a port of the second ice-making pipe only extends into the tops of the inner cavities of the ice-making columns, and height difference is formed between the port of the second ice-making pipe and the port of the first ice-making pipe. According to the ice-making machine, the ice-making pipes with different stretching heights are adopted to realize uniform flowing of refrigerants, spacers are removed, the production cost can be saved, and the ice-making machine is small and exquisite in overall structure and small in occupied space.

Description

Technical Field

[0001] The utility model relates to an ice-making evaporator. Background Art

[0002] An evaporator is an important component in the ice-making process. Mainly, the refrigerant liquid passes through the evaporator, exchanges heat with the outside world, vaporizes and absorbs heat to achieve the effect of refrigeration and ice-making. In the prior art, the structure generally adopts the utility model patent with the authorized announcement number of CN2651674Y. Multiple ice-making columns are distributed on a U-shaped tube, and partition plates are arranged in the ice-making columns. The main purpose is to make the refrigerant liquid flow evenly in the ice-making columns to improve the refrigeration efficiency. However, this structural method is relatively troublesome in production. Summary of the Invention

[0003] In order to overcome the above deficiencies in the prior art, the utility model provides an ice-making evaporator with simple manufacturing and cost savings.

[0004] The utility model is realized through the following technical solutions:

[0005] An ice-making evaporator includes multiple ice-making columns and a refrigerant pipeline connecting the ice-making columns for refrigerant circulation. The refrigerant pipeline includes a capillary tube for injecting refrigerant, a refrigeration tube connected between each ice-making column, and a liquid outlet tube for the refrigerant to flow out. It further includes a return air pipe for injecting gas. The characteristics are as follows: The refrigeration tube is set in multiple sections, and the ice-making columns are sequentially connected through the refrigeration tube. The upper ends of the ice-making columns are respectively inserted and connected with a first ice-making tube and a second ice-making tube. The port of the first ice-making tube extends into the bottom of the inner cavity of the ice-making column, and the port of the second ice-making tube only extends into the top of the inner cavity of the ice-making column. A height difference is formed between the port of the second ice-making tube and the port of the first ice-making tube.

[0006] Preferably, the multiple-section ice-making tubes are set as a U-shaped with asymmetric lengths on both sides. Its longer end extends into the bottom of the inner cavity of one ice-making column, and its shorter end extends into the top of the inner cavity of the adjacent ice-making column, thereby connecting the adjacent ice-making columns.

[0007] Preferably, the upper end of the ice-making column is expanded to form an upper end part, and a cover is sealed on the upper end part. Both the first ice-making tube and the second ice-making tube are inserted into the cover.

[0008] Preferably, the first ice-making tube is in the upstream direction, and the second ice-making tube is in the downstream direction.

[0009] Preferably, the ice-making columns are arranged in a circumferential pattern around a center point.

[0010] Preferably, an ice-making column is arranged at the center point of the circumferential pattern. The capillary tube and the return air pipe are arranged on the ice-making column at the center position, and the liquid outlet tube is arranged on the ice-making column at the end of the circumferential arrangement.

[0011] In the present utility model, no spacer is provided inside the ice-making column. Instead, the uniform flow of the refrigerant is achieved by the different heights at which the ice-making tubes extend. Different from the overall U-shaped arrangement and the shared refrigeration tubes in the prior art, the ice-making columns of the present utility model are arranged in a surrounding manner, and the refrigeration tubes connecting the ice-making columns are separately segmented, with a small overall volume and a small occupied space.

[0012] The beneficial effects of the present utility model are as follows: The present utility model uses ice-making tubes with different extension heights to achieve the uniform flow of the refrigerant, removes the spacer, can save production costs, and the overall structure of the present utility model is small and has a small occupied space. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the present utility model.

[0014] Figure 2 It is a schematic cross-sectional structural diagram of the ice-making column of the present utility model. Detailed Embodiment

[0015] The utility model will be further described in detail below in conjunction with the drawings and the detailed embodiment.

[0016] As Figure 1 、 2 shown, an ice-making evaporator includes a plurality of ice-making columns 1 and a refrigerant pipeline connecting the ice-making columns for the circulation of the refrigerant. The refrigerant pipeline includes a capillary tube 4 for injecting the refrigerant, a refrigeration tube 7 connected between each ice-making column, a liquid outlet tube 6 for the refrigerant to flow out, and also includes a return air tube 5 for injecting gas. The refrigeration tube 7 is provided in multiple segments, and the ice-making columns are sequentially connected through the refrigeration tubes. The ice-making tube is set as a U-shaped tube with asymmetric lengths on both sides. Its longer end extends into the bottom of the inner cavity of one ice-making column, and its shorter end extends into the top of the inner cavity of the adjacent ice-making column, thereby connecting the adjacent ice-making columns. That is, the upper ends of the ice-making columns are respectively inserted and connected with two ice-making tubes, a first ice-making tube 8 and a second ice-making tube 9. The port of the first ice-making tube 8 extends into the bottom of the inner cavity of the ice-making column, and the port of the second ice-making tube 9 only extends into the top of the inner cavity of the ice-making column. A height difference is formed between the port of the second ice-making tube and the port of the first ice-making tube.

[0017] In this embodiment, the first ice-making tube 8 is in the upstream direction, and the second ice-making tube 9 is in the downstream direction. The shorter end of the first ice-making tube is located inside the previous ice-making column. The refrigerant enters from the shorter end of the first ice-making tube, then enters the bottom of the current ice-making column through the longer end of the first ice-making tube, flows upward, enters the second ice-making tube through the shorter end of the second ice-making tube, and then enters the next ice-making column, and so on. Here, the flow direction can also be in the reverse direction, entering the ice-making column from the shorter end and then exiting from the longer end. By adopting this inlet and outlet method with a height difference, the refrigerant can flow upward from the bottom or downward from the top, and the uniform flow of the refrigerant can also be achieved without the need for a spacer, reducing the number of components and the manufacturing process, thereby reducing the production cost.

[0018] The upper end of the ice-making column is expanded to form an upper end portion 2, and a cover 3 is sealed on the upper end portion 2. Both the first ice-making tube and the second ice-making tube are inserted into the cover.

[0019] In this application, since the ice-making tubes 7 are all independently arranged and no longer distributed in the original U-shaped manner, the ice-making columns are arranged in a circular pattern around the center point. In addition, an ice-making column is provided at the center point of the circle, the capillary tube 4 and the return air pipe 5 are arranged on the ice-making column at the center position, and the liquid outlet pipe 6 is arranged on the ice-making column arranged at the end of the circle. With this arrangement method, the overall structure is more compact, occupies less space, and is convenient for the miniaturization design of the corresponding device.

[0020] In the present utility model, no spacer is provided inside the ice-making column, but the uniform flow effect of the refrigerant is achieved by the different heights of the pipelines extending into the ice-making tubes. Different from the overall U-shaped arrangement and the shared refrigeration tube in the prior art, the ice-making columns in the present utility model are arranged in a circular pattern, and the refrigeration tubes connecting the ice-making columns are separately segmented, with a small overall volume and less occupied space.

[0021] The present utility model uses ice-making tubes with different extending heights to achieve the uniform flow of the refrigerant, removes the spacer, can save production costs, and the overall structure of the present utility model is compact and occupies less space.

Claims

1. An ice-making evaporator, comprising a plurality of ice-making columns and a refrigerant pipeline connecting the ice-making columns for refrigerant circulation. The refrigerant pipeline includes a capillary tube for injecting refrigerant, a refrigeration tube connected between each ice-making column, and a liquid outlet pipe for discharging refrigerant. It further includes a return air pipe for injecting gas, and is characterized in that: The refrigeration pipes are provided in multiple sections, and the ice-making columns are sequentially connected through the refrigeration pipes respectively. The upper ends of the ice-making columns are respectively inserted and connected with a first ice-making pipe and a second ice-making pipe. The port of the first ice-making pipe extends into the bottom of the inner cavity of the ice-making column, and the port of the second ice-making pipe only extends into the top of the inner cavity of the ice-making column, forming a height difference between the port of the second ice-making pipe and the port of the first ice-making pipe.

2. The ice-making evaporator according to claim 1, characterized in that: The multi-section ice-making pipes are in the shape of a U with asymmetric lengths on both sides. Its longer end extends into the bottom of the inner cavity of one ice-making column, and its shorter end extends into the top of the inner cavity of the adjacent ice-making column, thereby connecting the adjacent ice-making columns.

3. The ice-making evaporator according to claim 2, characterized in that: The upper end of the ice-making column is expanded to form an upper end portion, and a cover is sealed on the upper end portion. Both the first ice-making pipe and the second ice-making pipe are inserted into the cover.

4. The ice-making evaporator according to claim 3, characterized in that: The first ice-making pipe is in the upstream direction, and the second ice-making pipe is in the downstream direction.

5. A kind of ice-making evaporator according to claim 1, characterized in that: The ice-making columns are arranged in a circumferential pattern around the center point.

6. The ice-making evaporator according to claim 5, characterized in that: An ice-making column is provided at the center point of the circumferential arrangement. The capillary tube and the return air pipe are arranged on the ice-making column at the center position, and the liquid outlet pipe is arranged on the ice-making column arranged at the end of the circumferential arrangement.

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