Refrigerating device applied to snowflake ice maker

Abstract

The utility model provides a refrigerating device applied to a snowflake ice maker. The refrigerating device comprises a positioning shaft, a throttling device, a sealing ring, a first bearing and a second bearing, a channel penetrates through the positioning shaft; one end of the positioning shaft is matched with an air return pipe, and the air return pipe is communicated with the channel; the positioning shaft is provided with a through hole, a limiting column and a second limiting step, the through hole is communicated with the channel, and one end of the throttling device extends into the channel, penetrates out of the through hole and is wound on the outer wall of the positioning shaft, so that after the positioning shaft and the evaporation unit are installed, the throttling device is located in the center of the interior of the evaporation unit, and the throttling device is located in the middle of the evaporation unit. When the refrigerant is sprayed into the evaporation unit from the throttling device, the refrigerant is more uniform, meanwhile, the energy loss is lower, and the refrigeration effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of flake ice machines, in particular to a refrigeration device applied to flake ice machines. Background Art

[0002] An ice machine is a refrigeration mechanical device that cools liquid through an evaporator and then exchanges heat with the evaporator to generate ice. In existing flake ice machines, such as an evaporative cooling device of a flake ice machine with announcement number CN116989512A, the refrigeration device is installed on one side of the evaporator, and the refrigerant is sprayed onto the inner wall of the evaporator through a throttling device. However, due to the certain distance between the throttling device and the evaporator, the throttling device is prone to uneven refrigerant spraying when spraying the refrigerant, and the temperature on the side close to the spray outlet of the throttling device is lower; and even the refrigerant is prone to energy loss during the spraying process, resulting in poor refrigeration effect. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a refrigeration device applied to a snow ice machine.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A refrigeration device used in a snow ice machine includes a positioning shaft, a throttling device, a sealing ring, a first bearing and a second bearing; a channel runs through the positioning shaft; one end of the positioning shaft is adapted to be installed with a return air pipe, and the return air pipe is connected to the channel; a through hole, a limiting column and a second limiting step are provided on the positioning shaft, and the through hole is connected to the channel, and one end of the throttling device extends into the channel and passes through the through hole and is wrapped around the outer wall of the positioning shaft.

[0006] Furthermore, the first bearing and the second bearing are sleeved on the outer wall of the positioning shaft, and the outer diameter of the second limiting step is larger than the inner diameter of the second bearing.

[0007] Furthermore, a sealing ring groove is provided on the positioning shaft, the sealing ring is sleeved on the positioning shaft, and the inner ring of the sealing ring is tightly fitted in the sealing ring groove.

[0008] Furthermore, the first bearing is located on one side of the sealing ring and the outer diameter of the sealing ring is larger than the outer diameter of the first bearing.

[0009] Furthermore, the limiting column is located on the other end of the positioning shaft, and the positioning shaft is provided with a positioning hole for installing the limiting column.

[0010] Furthermore, an air return port is provided at one end of the positioning shaft connected to the air return pipe, and the air return port is adapted to be installed with the air return pipe.

[0011] Furthermore, the air return port is provided with a limit slot, and the limit slot is symmetrically arranged.

[0012] Furthermore, a first limiting step is provided on the air return port, and an outer diameter of the first limiting step is larger than an inner diameter of the first bearing.

[0013] Furthermore, the through hole is in an oblong shape.

[0014] The utility model has the following beneficial effects: 1. A channel and a through hole are provided in the positioning shaft, and the throttling device extends into the channel and passes through the through hole and is wound around the outer wall of the positioning shaft, so that after the positioning shaft and the evaporation unit are installed, the throttling device is located in the center of the evaporation unit, and the refrigerant is sprayed from the throttling device into the evaporation unit more evenly, with lower energy loss and better refrigeration effect; 2. A limiting column and a positioning hole are provided for limiting the throttling device wound around the positioning shaft to prevent it from falling off from one end of the positioning shaft; 3. A first limiting step and a second limiting step are provided to limit the first bearing and the second bearing; 4. A sealing ring groove is provided to limit the sealing ring, so that the sealing ring is positioned and installed, and the end of the interior of the evaporation unit is closed, so that the refrigerant after heat exchange can only flow back through the channel and be collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0016] Figure 2 It is an overall structural exploded view of an embodiment of the utility model.

[0017] Reference numerals in the figure: positioning shaft 1, through hole 11, limiting column 12, second limiting step 13, sealing ring groove 14, positioning hole 15;

[0018] Air return port 16, limiting slot 161, first limiting step 162, nut 163;

[0019] Throttling device 2, channel 3, air return pipe 4;

[0020] First bearing 51 , second bearing 52 , sealing ring 6 . DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] like Figure 1 , Figure 2 As shown, a refrigeration device applied to a flake ice machine is installed on the flake ice machine and one end of the refrigeration device extends into the evaporation unit of the flake ice machine, spraying refrigerant into the evaporation unit to cool it down, so as to make flake ice. The refrigeration device includes a positioning shaft 1, a throttling device 2, a sealing ring 6, a return air pipe 4, a first bearing 51 and a second bearing 52. The positioning shaft 1 is provided with a through hole 11, and a channel 3 runs through the interior of the positioning shaft 1.

[0023] One end of the positioning shaft 1 is provided with an air return port 16, and the air return port 16 is provided with an external thread. The air return pipe 4 is threadedly connected to the air return port 16 through a nut 163, so that the air return pipe 4 is connected to the channel 3. The air return pipe 4 is used to collect the refrigerant after heat exchange with the evaporation unit, so that the refrigerant is recovered into the compressor through the air return pipe 4.

[0024] The throttling device 2 is filled with refrigerant and is used to transfer the refrigerant so that the refrigerant is evenly sprayed inside the evaporation unit. Specifically, one end of the throttling device 2 is connected to the compressor, and the other end extends from the return air pipe 4 to the channel 3, and passes out from the through hole 11 and coils on the outer wall of the positioning shaft 1. The liquid outlet end of the throttling device 2 is located at the center of the evaporation unit, so that the refrigerant sprayed on the inner wall of the evaporation unit can be more evenly distributed, avoiding the situation where the evaporation unit has a better cooling effect on one side and a poor cooling effect on the other side.

[0025] Specifically, the refrigerant is output from the compressor and sprayed into the evaporator through the throttling device 2 to exchange heat with the evaporator. The vaporized refrigerant after the heat exchange is recovered through the channel 3 and is recovered and collected into the compressor from the return air pipe 4 to form a pipeline cycle.

[0026] Further, such as Figure 2 As shown, in order to limit the throttling device 2 wound on the outer wall of the positioning shaft 1 to prevent it from falling off the positioning shaft 1, a limiting column 12 is installed at the end of the positioning shaft 1, and correspondingly, a positioning hole 15 for installing the limiting column 12 is provided on the positioning shaft 1. The limiting column 12 is threadedly installed on the positioning hole 15 to limit the throttling device 2 wound on the positioning shaft 1.

[0027] Furthermore, in order to make it easier for the throttling device 2 to pass through the through hole 11 and be wound around the positioning shaft 1, the through hole 11 is in an oblong shape.

[0028] The first bearing 51, the second bearing 52 and the sealing ring 6 are all sleeved on the positioning shaft 1. The sealing ring 6 is located between the first bearing 51 and the second bearing 52.

[0029] Specifically, the positioning shaft 1 is provided with a sealing ring groove 14, which is annularly surrounding the outer wall of the positioning shaft 1. The inner ring at one end of the sealing ring groove 14 is tightly sleeved on the sealing ring groove 14, which is used to position and limit the sealing ring 6 so that the sealing ring 6 can be positioned and installed.

[0030] The first bearing 51 is tightly attached to one side of the sealing ring 6, and the second bearing 52 is located on the other side of the sealing ring 6 near the through hole 11. Furthermore, in order to limit the first bearing 51 and the second bearing 52, a first limiting step 162 is provided on the air return port 16, and a second limiting step 13 is provided on the positioning shaft 1.

[0031] The first limiting step 162 limits the first bearing 51 . The outer diameter of the first limiting step 162 is greater than the inner diameter of the first bearing 51 , so that the first bearing 51 is tightly installed between the first limiting step 162 and the sealing ring 6 .

[0032] The second limiting step 13 limits the second bearing 52. The second limiting step 13 is located on the other side of the sealing ring 6. The outer diameter of the second limiting step 13 is larger than the inner diameter of the second bearing 52, so that the second bearing 52 is close to the through hole 11 and a gap is maintained between the second bearing 52 and the sealing ring 6. The outer diameter of the second bearing 52 is smaller than the outer diameter of the first bearing 51.

[0033] Furthermore, the outer diameter of the sealing ring 6 is equal to the inner diameter of the evaporation unit, and is used to seal the end of the evaporation unit so that the refrigerant distributed inside the evaporation unit can only enter the return air pipe 4 through the channel 3 to form an in-pipe circulation, thereby preventing the refrigerant from leaking.

[0034] Furthermore, in order to fix the positioning shaft 1 so that it remains stable when the throttling device 2 sprays the refrigerant, a limit slot 161 is provided on the return air port 16, and the limit slot 161 is symmetrically arranged, so that it is convenient to fix it on the snow ice machine through a bracket.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention and on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A refrigeration device used in a snow ice machine, characterized in that: The invention comprises a positioning shaft (1), a throttling device (2), a sealing ring (6), a first bearing (51) and a second bearing (52); a channel (3) is passed through the positioning shaft (1); one end of the positioning shaft (1) is fitted and installed with a return air pipe (4), and the return air pipe (4) is connected with the channel (3); a through hole (11), a limiting column (12) and a second limiting step (13) are provided on the positioning shaft (1), the through hole (11) is connected with the channel (3), and one end of the throttling device (2) extends into the channel (3) and passes through the through hole (11) and is wound around the outer wall of the positioning shaft (1).

2. The refrigeration device according to claim 1, characterized in that: The first bearing (51) and the second bearing (52) are sleeved on the outer wall of the positioning shaft (1), and the outer diameter of the second limiting step (13) is greater than the inner diameter of the second bearing (52).

3. The refrigeration device according to claim 1, characterized in that: The positioning shaft (1) is provided with a sealing ring groove (14), the sealing ring (6) is sleeved on the positioning shaft (1), and the inner ring of the sealing ring (6) is tightly fitted with the sealing ring groove (14).

4. The refrigeration device according to claim 1, characterized in that: The first bearing (51) is located on one side of the sealing ring (6), and the outer diameter of the sealing ring (6) is greater than the outer diameter of the first bearing (51).

5. The refrigeration device according to claim 1, characterized in that: The limiting column (12) is located on the other end of the positioning shaft (1), and the positioning shaft (1) is provided with a positioning hole (15) for mounting the limiting column (12).

6. The refrigeration device according to claim 1, characterized in that: An air return port (16) is provided at one end of the positioning shaft (1) connected to the air return pipe (4), and the air return port (16) is adapted to be mounted on the air return pipe (4).

7. The refrigeration device according to claim 6, characterized in that: The air return port (16) is provided with a limit slot (161), and the limit slot (161) is symmetrically arranged.

8. The refrigeration device according to claim 6, characterized in that: The air return port (16) is provided with a first limiting step (162), and the outer diameter of the first limiting step (162) is greater than the inner diameter of the first bearing (51).

9. The refrigeration device according to claim 1, characterized in that: The through hole (11) is in the shape of an oblong.

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