CN220552136U - Double-layer coil pipe type ice making assembly of household ice making machine - Google Patents
Double-layer coil pipe type ice making assembly of household ice making machine Download PDFInfo
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- CN220552136U CN220552136U CN202321727381.4U CN202321727381U CN220552136U CN 220552136 U CN220552136 U CN 220552136U CN 202321727381 U CN202321727381 U CN 202321727381U CN 220552136 U CN220552136 U CN 220552136U
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- coil
- ice
- ice making
- inner coil
- bucket
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- 239000003507 refrigerant Substances 0.000 claims abstract description 54
- 238000001704 evaporation Methods 0.000 claims abstract description 46
- 230000008020 evaporation Effects 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004519 grease Substances 0.000 claims abstract description 9
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model discloses a double-layer coil pipe type ice making assembly of a household ice making machine, which comprises: ice bucket and coil the evaporating coil at ice bucket outer wall, evaporating coil includes: the inner coil is clung to the outer wall of the ice bucket, the outer coil is clung to the inner coil, and heat conduction silicone grease is filled in a gap between the outer coil and the inner coil; the inner coil pipe is communicated with the outer coil pipe, the outer coil pipe is provided with a refrigerant inlet, and the inner coil pipe is provided with a refrigerant outlet; when the ice-making machine is used, the cold load provided for the water in the ice bucket mainly comes from the inner coil, part of the cold load comes from the outer coil, and the auxiliary cold load provided by the outer coil can reduce the temperature difference between the average temperature of the intermediate medium and the evaporation saturation temperature of the refrigerants in the inner coil and the outer coil, and relatively speaking, the temperature difference between the average temperature of the intermediate medium and the water in the ice bucket is increased, the provision of the cold load is increased, and the ice-making amount is increased.
Description
Technical Field
The utility model relates to the technical field of ice making, in particular to a double-layer coil pipe type ice making assembly of a household ice making machine.
Background
Coil tube evaporators of household extrusion ice-making machines in the current market are all designed by single-layer coils, one end is a refrigerant inlet, the other end is a refrigerant outlet, a flow path is simplified, and the heat exchange effect is insufficient.
The design mode of the single-layer coil is that no matter whether the refrigerant in the tube is R600a or other refrigerants, the theoretical temperature of the refrigerant in the evaporating coil is the evaporating saturation temperature, in principle, the actual temperature of the refrigerant in the evaporating coil is best close to the evaporating saturation temperature, in fact, the actual temperature of the refrigerant in the evaporating coil is different from the inlet to the outlet, the actual temperature of the refrigerant in part of the length of the evaporating coil is close to the evaporating saturation temperature, and the actual temperature of the refrigerant in other lengths of the refrigerant is slightly higher than the evaporating saturation temperature. The theoretical temperature of the intermediate medium (such as the wall of the ice bucket, the wall of the coil and the like) is the same as the evaporation saturation temperature of the refrigerant in the coil, but in practical situations, the actual temperature of the intermediate medium is far higher than the saturation evaporation temperature of the refrigerant, the further the intermediate medium is away from the evaporation tube, the temperature of the intermediate medium is higher than the evaporation saturation temperature of the refrigerant, the temperature of water or ice on the inner wall of the ice bucket is higher than the evaporation saturation temperature of the refrigerant, the temperature difference is more than 10 ℃, the temperature difference is large, the refrigerant provides insufficient cold load, the heat exchange effect is insufficient, and the ice making effect is poor.
Such as: chinese patent No.: 2022202277095A spiral ice making mechanism comprises an evaporation cylinder, wherein the evaporation cylinder comprises an ice making cylinder and an evaporation tube, the ice making cylinder is arranged in a single cylinder, and the evaporation tube is spirally wound on the outer circumferential wall of the ice making cylinder and is a single-layer coil. For the above reasons, this prior art has the problem that the heat exchange effect is insufficient and the ice making effect is poor.
To solve the above problems, the applicant has improved the prior art.
Disclosure of Invention
The utility model provides a double-layer coil pipe type ice making assembly of a household ice making machine.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: a double-deck coil ice making assembly for a home ice making machine, comprising: ice bucket and coil the evaporating coil at ice bucket outer wall, evaporating coil includes: the inner coil is clung to the outer wall of the ice bucket, the outer coil is clung to the inner coil, and heat conduction silicone grease is filled in a gap between the outer coil and the inner coil; the inner coil pipe is communicated with the outer coil pipe, the outer coil pipe is provided with a refrigerant inlet, and the inner coil pipe is provided with a refrigerant outlet; when the double-layer evaporator is used, after refrigerant flows through the outer coil and the inner coil from the refrigerant inlet, the refrigerant flows out from the refrigerant outlet, the heat conduction silicone grease can improve the heat conduction performance between the outer coil and the inner coil, the design of the double-layer evaporator coil can effectively improve the average temperature of an intermediate medium, and the temperature difference between the average temperature of the intermediate medium and the evaporation saturation temperature of the refrigerant can be reduced.
As a preferred solution of the present utility model, the outer coil is at least one turn less than the inner coil, and the axial height of the outer coil is less than the axial height of the inner coil, so that the refrigerant absorbs heat during flowing along the outer coil and the inner coil, and in particular, the inner coil absorbs heat of water in the ice bucket through the bucket wall, so that the water freezes on the bucket wall.
As a preferred scheme of the utility model, the ice bucket is provided with a water inlet, the refrigerant inlet is positioned below the refrigerant outlet, the water inlet is positioned below the refrigerant inlet, water flows from bottom to top, and heat exchange condensation is carried out on the water and the refrigerant through an intermediate medium to form ice.
In a preferred embodiment of the present utility model, the inner coil and the outer coil are coiled in the axial direction of the ice bucket, and the outer coil is coiled upward from the lower part of the inner coil, and the diameters of the inner coil and the outer coil are equal.
In a preferred embodiment of the present utility model, the ice bucket and the evaporation coil are assembled in a housing and then integrally installed in the ice maker.
As a preferable scheme of the utility model, the top of the ice bucket is provided with an ice extruder, and the ice extruder extends out of the shell.
In a preferred mode of the utility model, the ice bucket is internally provided with an ice scraper which is coaxially arranged with the ice bucket and the shaft part of the ice scraper extends out of the shell.
In a preferred embodiment of the present utility model, the evaporation coil is of a rotary design, the shape and the material of the evaporation coil are not restricted, and the shape is circular, D-shaped, flat, etc., and the material is copper pipe, steel pipe, aluminum pipe, etc.
Compared with the prior art, the utility model has the following beneficial and continuous effects: the utility model relates to a double-layer evaporation coil design, which comprises an inner coil and an outer coil, so that the cooling load can be increased, and the ice making efficiency and the ice making quantity can be improved; the heat conduction silicone grease is arranged between the inner evaporating coil and the outer evaporating coil, so that the heat exchange quantity and the heat exchange efficiency between the inner coil and the outer coil can be improved, and the aim of increasing the cooling load is further achieved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of the present utility model.
Reference numerals illustrate:
| ice bucket 100 | Water inlet 101 | Ice extruder 110 | Ice shaver 120 |
| Shaft portion 121 | Evaporation coil 200 | Inner coil 210 | Refrigerant outlet 211 |
| Outer coil 220 | Refrigerant inlet 221 | Heat conduction silicone grease 300 | Housing 400 |
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Referring to fig. 1, a double-deck coil type ice making assembly of a home ice maker, includes: the ice bank 100 and the evaporation coil 200 coiled at the outer wall of the ice bank 100, the evaporation coil 200 comprising: an inner coil 210 and an outer coil 220, wherein the inner coil 210 is tightly attached to the outer wall of the ice bucket 100, the outer coil 220 is tightly attached to the inner coil 210, and the gap between the outer coil 220 and the inner coil 210 is filled with heat-conducting silicone grease 300; the inner coil 210 communicates with an outer coil 220, the outer coil 220 having a refrigerant inlet 221 and the inner coil 210 having a refrigerant outlet 211.
In ice making, refrigerant enters the outer coil 220 from the refrigerant inlet 221, flows into the inner coil 210, and finally flows out of the refrigerant outlet 211.
The outer coil 220 transfers the cold load to the water in the ice bucket 100 through the intermediate medium, because the inner coil 210 is directly contacted with the ice bucket 100, the inner coil 210 is close to the ice bucket 100, the outer coil 220 is wound on the inner coil 210, the outer coil 220 is far away from the ice bucket 100, when ice is made, the cold load provided to the water in the ice bucket 100 mainly comes from the inner coil 210, part of the cold load comes from the outer coil 220, and the auxiliary cold load provided by the outer coil 220 can reduce the temperature difference between the average temperature of the intermediate medium and the evaporation saturation temperature of the refrigerant in the inner coil 210 and the outer coil 220, and compared with the temperature difference between the average temperature of the intermediate medium and the water in the ice bucket 100 is increased, the provision of the cold load is increased, and the ice making amount is increased.
The intermediate media herein, each variously referred to as:
the refrigerant exchanges heat in the outer coil 220 through an intermediate medium, which is a generic term for the outer coil wall, the inner coil wall, the heat conductive silicone grease, and the tub wall, to absorb heat of water in the ice tub 100;
the refrigerant exchanges heat in the inner coil 210 through an intermediate medium, referred to herein as the inner coil wall and the tank wall, to absorb heat from the water in the ice tank 100.
After the inner coil 210 and the outer coil 220 are arranged, the ice making amount can be effectively improved by the auxiliary cold load supply of the outer coil 220, the advantage of the evaporation saturation temperature of the refrigerant in the evaporation coil 200 is fully excavated, and the cost performance is better on the basis of combining the cost and the ice making performance, so that the ice making device has a wide market prospect.
In order to test the performance of the double-layer coil type ice making assembly applied to a household ice making machine, the performance of the household ice making machine with a single coil and the performance of the household ice making machine with double coils are compared, wherein the household ice making machine with double coils is characterized in that an outer coil is additionally arranged on the basis of the household ice making machine with the single coil, the rest structures are unchanged, and the parameters of an evaporation coil of the household ice making machine with the single coil are as follows: a ring, a single layer and a copper pipe; the parameters of the evaporating coil of the household ice maker with double coils are as follows:the coil is double-layer, copper pipe, wherein the inner coil is 7.5 circles, and the outer coil is 3 circles. The performance test is as follows:
from the above test results, it was analyzed that the addition of the outer coil to the home ice maker of the same construction improved the ice making efficiency by about 13%.
Further, the ice bucket 100 may have a bucket-shaped structure or a rectangular structure, the evaporation coil 200 is wound around the outer wall of the ice bucket 100, and in the conventional structure, the amount of ice can be changed by changing the height of the ice bucket 100 and the number of turns of the inner coil, but once the height of the ice bucket 100 is changed, the volume of the whole ice maker is increased; by adopting the mode of the embodiment, under the condition that the height of the ice bucket 100 is unchanged, the outer coil pipe can be increased, and the refrigeration efficiency and the ice making amount are improved; it should be noted that the meaning of adding the outer coil is different from the meaning of adding the number of turns of the inner coil, and the cooling load mainly originates from the inner coil 210, and part of the cooling load originates from the outer coil 220.
In one embodiment, the outer coil 220 is at least one turn less than the inner coil 210, and the axial height of the outer coil 220 is less than the axial height of the inner coil 210; further, the number of turns of the inner coil 210 and the outer coil 220 may be adjusted according to the ice making amount requirement, performance requirement of the ice making machine product.
As shown in fig. 1, the inner coil 210 is tightly wound around the outer wall of the ice bucket 100, and the pitch of the inner coil 210 is as small as possible, preferably 0, so that the number of windings of the inner coil 210 on the ice bucket 100 is increased as much as possible in the same area to increase the contact area with the ice bucket 100; likewise, the pitch of the outer coil 220 is as small as possible.
Further, the inner coil 210 and the outer coil 220 are wound along the axial direction of the ice bucket 100, the outer coil 220 is wound upward from the lower portion of the inner coil 210, and the diameters of the inner coil 210 and the outer coil 220 are equal. When making ice, water flows in the ice bucket 100 from bottom to top, heat exchange is continuously carried out in the flowing process, and ice is condensed and attached in the ice bucket 100.
Further, the gap between the inner coil 210 and the outer coil 220 is filled with the heat conductive silicone grease 300, which can enhance the heat exchange effect.
In one embodiment, the ice bucket 100 is provided with a water inlet 101, the refrigerant inlet 221 is located below the refrigerant outlet 211, and the water inlet 101 is located below the refrigerant inlet 221; the positions between the water inlet 101, the refrigerant inlet 221 and the refrigerant outlet 211 may be changed according to ice makers of different structures.
In one embodiment, the ice bin 100 and the evaporation coil 200 are assembled within a housing 400, the housing 400 having a shell, an upper cover plate, and a lower cover plate.
When assembled, the refrigerant inlet 221 is located outside the housing 400, while the refrigerant outlet 211 is located outside the housing 400, facilitating connection with other components.
Further, the ice squeezing device 110 is mounted at the top of the ice bucket 100, the ice squeezing device 110 extends out of the top of the housing 400, the ice bucket 100 is internally provided with the ice scraper 120, the ice scraper 120 is coaxially mounted with the ice bucket 100, and the shaft portion 121 of the ice scraper 120 extends out of the housing 400. When the ice scraper 120 rotates, the ice scraper 120 scrapes off ice formed on the inner wall of the ice bucket 100 and sends the ice to the ice extruder 110, and the ice extruder 110 has different specific structures and can extrude crushed ice into ice cubes with different shapes and then send the ice cubes out.
In one embodiment, the evaporating coil 200 is an internally threaded copper tube, which increases the contact area between the refrigerant and the evaporating coil 200.
Optionally, the evaporation coil 200 is of a rotary design, the shape and the material of the evaporation coil 200 are not restricted, and the shape is round, D-shaped, flat, etc., and the material is copper pipe, steel pipe, aluminum pipe, etc.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A double-deck coil ice making assembly for a home ice making machine, comprising: ice bucket (100) and coil evaporation coil (200) at ice bucket (100) outer wall, its characterized in that: the evaporation coil (200) comprises: the inner coil (210) and the outer coil (220), the inner coil (210) is tightly attached to the outer wall of the ice bucket (100), the outer coil (220) is tightly attached to the inner coil (210), and a gap between the outer coil (220) and the inner coil (210) is filled with heat-conducting silicone grease (300); the inner coil (210) is in communication with an outer coil (220), the outer coil (220) having a refrigerant inlet (221), the inner coil (210) having a refrigerant outlet (211).
2. The double-deck coil ice making assembly of a home ice making machine of claim 1, wherein: the outer coil (220) is at least one turn less than the inner coil (210), and the axial height of the outer coil (220) is less than the axial height of the inner coil (210).
3. The double-deck coil ice making assembly of a home ice making machine of claim 1, wherein: the ice bucket (100) is provided with a water inlet (101), the refrigerant inlet (221) is located below the refrigerant outlet (211), and the water inlet (101) is located below the refrigerant inlet (221).
4. The double-deck coil ice making assembly of a home ice making machine of claim 1, wherein: the inner coil (210) and the outer coil (220) are coiled along the axial direction of the ice bucket (100), the outer coil (220) is wound upwards from the lower part of the inner coil (210), and the calibers of the inner coil (210) and the outer coil (220) are equal.
5. The double-deck coil ice making assembly of a home ice maker according to any one of claims 1-4, wherein: the ice bucket (100) and the evaporation coil (200) are assembled within a housing (400).
6. The double-deck coil ice making assembly of a home ice making machine of claim 5, wherein: an ice squeezing device (110) is arranged at the top of the ice bucket (100), and the ice squeezing device (110) extends out of the shell (400).
7. The double-deck coil ice making assembly of a home ice making machine of claim 5, wherein: the ice bucket (100) is internally provided with the ice scraper (120), the ice scraper (120) and the ice bucket (100) are coaxially arranged, and the shaft part (121) of the ice scraper (120) extends out of the shell (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321727381.4U CN220552136U (en) | 2023-07-03 | 2023-07-03 | Double-layer coil pipe type ice making assembly of household ice making machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321727381.4U CN220552136U (en) | 2023-07-03 | 2023-07-03 | Double-layer coil pipe type ice making assembly of household ice making machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220552136U true CN220552136U (en) | 2024-03-01 |
Family
ID=90009324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321727381.4U Active CN220552136U (en) | 2023-07-03 | 2023-07-03 | Double-layer coil pipe type ice making assembly of household ice making machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220552136U (en) |
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2023
- 2023-07-03 CN CN202321727381.4U patent/CN220552136U/en active Active
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