Evaporator protection structure of a snowflake machine

Abstract

The utility model discloses an evaporator protection structure of snowflake machine belongs to snowflake machine technical field, and the evaporator cylinder body is provided with the end plate respectively on the axial both ends, is provided with the cold insulation gasket respectively on two end plates, and the cold insulation gasket is made of high-cold-resistant material and is directly fixed on the outside of end plate. The cold insulation gasket of high-cold-resistant is fixed on the outside of end plate on the axial both ends of evaporator cylinder body, and the cooperation of end plate and cold insulation gasket can not only form double -deck heat preservation energy -saving effect to the inside of evaporator, but also can effectively prevent the phenomenon that the left and right end surface of evaporator freezes when long working time, can improve the service life of evaporator, can guarantee the quality of ice making, in addition, the cold insulation gasket can not be directly fixed on the outside of end plate with any auxiliary component, and the structure is simple and reasonable, and the assembly is stable.

Description

Technical Field

[0001] This utility model relates to the field of snow machine technology, specifically to an evaporator protection structure for a snow machine. Background Technology

[0002] A rotary evaporator is a sealed refrigeration device used in shaved ice machines. It connects refrigerant inside a cylindrical evaporator to achieve a high-pressure refrigerant output, thereby continuously and rapidly cooling and freezing the liquid on the outer wall of the evaporator during rotation. For example, a sealed rotary evaporator for a shaved ice machine is disclosed in Chinese utility model patent CN202023030282.X.

[0003] However, most evaporators in slush ice machines currently on the market are made of stainless steel. Due to the high thermal conductivity of stainless steel, thick ice accumulates on both axial ends of the evaporator over long periods of operation. The longer the operation time, the thicker the ice becomes, which affects the machine's lifespan and alters the ice output, thus impacting the quality of the ice. Therefore, further improvements are needed.

[0004] Therefore, further improvements are necessary. Utility Model Content

[0005] The present invention aims to provide an evaporator protection structure for a snow machine to overcome the shortcomings of the prior art.

[0006] An evaporator protection structure for a snow machine designed for this purpose includes an evaporator cylinder, with end plates at both axial ends of the evaporator cylinder, and cold insulation gaskets on the two end plates. The cold insulation gaskets are made of cold-resistant materials and are directly fixed to the outside of the end plates.

[0007] The end plate is made of metal, and the cold insulation gasket is made of nylon or silicone.

[0008] The end plate and the cold insulation gasket are independent components, and they are fixed to each other by pasting, snapping, or fasteners, or the end plate and the cold insulation gasket are integrally injection molded.

[0009] The outer dimensions of the cold insulation gasket are substantially the same as the outer dimensions of the evaporator cylinder or end plate, or the outer dimensions of the cold insulation gasket are smaller than the outer dimensions of the evaporator cylinder or end plate.

[0010] The end plate and the cold insulation gasket are in contact with a flat surface or a concave-convex surface.

[0011] The outer side of the end plate and the inner side of the cold insulation pad are both flat, and there is a planar contact between them. The planar contact between the end plate and the cold insulation pad is fixed by adhesive injection.

[0012] The outer side of the end plate is provided with a textured groove, and the inner side of the cold insulation pad is a flat surface, which makes contact with the textured groove through the flat surface. The end plate and the cold insulation pad are fixed by adhesive injection at the contact point.

[0013] The outer side of the end plate is provided with a planar assembly groove, the inner side of the cold insulation gasket is a plane, and it is embedded in the planar assembly groove through the plane. The end plate and the cold insulation gasket are fixed by adhesive injection at the embedded joint.

[0014] The outer side of the end plate is flat and has positioning holes, the inner side of the cold insulation pad is flat and has positioning posts, the cold insulation pad and the end plate are in planar contact and are positioned and fitted by the positioning posts and positioning holes, and the planar contact or positioning contact of the end plate and the cold insulation pad are fixed by adhesive injection.

[0015] The evaporator cylinder has open openings at both ends, and end plates are fixedly mounted on the open openings. The end plates have connecting holes and a rotating shaft is connected through the connecting holes. The cold insulation gasket has clearance holes corresponding to the rotating shaft. The outer wall of the evaporator cylinder also has an ice-forming groove.

[0016] Through the structural improvement described above, this utility model fixes cold-resistant insulating gaskets to the outer side of the end plates at both ends of the evaporator cylinder along the axial direction. The combination of the end plates and the insulating gaskets not only creates a double-layer heat preservation and energy-saving effect inside the evaporator, but also effectively prevents ice formation on both ends of the evaporator during long-term operation. This not only improves the service life of the evaporator, but also ensures the quality of ice production. In addition, the insulating gaskets cannot be directly fixed to the outer side of the end plates without any auxiliary components, making the structure simple and reasonable, and the assembly stable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembly structure of the first embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the assembly cross-sectional structure of the first embodiment of this utility model.

[0019] Figure 3 This is an exploded structural diagram of the first embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram showing the evaporator cylinder, end plate, and cold insulation gasket of the first embodiment of this utility model.

[0021] Figure 5 This is a schematic diagram showing the evaporator cylinder, end plate, and cold insulation gasket of the second embodiment of this utility model.

[0022] Figure 6 This is a schematic diagram showing the evaporator cylinder, end plate, and cold insulation gasket of the third embodiment of this utility model.

[0023] Figure 7 This is a schematic diagram showing the evaporator cylinder, end plate, and cold insulation gasket of the fourth embodiment of this utility model. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0026] See Figures 1-4 The evaporator protection structure of this snowflake machine includes an evaporator cylinder 1, with end plates 2 respectively installed at both ends of the evaporator cylinder 1. Cold insulation gaskets 3 are installed on the two end plates 2 respectively. The cold insulation gaskets 3 are made of cold-resistant materials and are directly fixed to the outside of the end plates 2.

[0027] End plate 2 is made of metal, and cold insulation gasket 3 is made of nylon or silicone.

[0028] Specifically, the evaporator shell 1 is a stainless steel cylinder with open ends at both axial directions. The end plate 2 is a circular metal plate (e.g., stainless steel or aluminum), fixed to the open ends by welding or bolting, thus forming a sealed container together with the evaporator shell 1. A connecting hole 2.4 is machined in the center of the end plate 2 for inserting and connecting an external rotating shaft 4, enabling the entire evaporator to be driven to rotate. The outer wall of the evaporator shell 1 typically has ice-forming grooves 1.1 machined to enhance the icing effect during the ice-making process.

[0029] The cold insulation gasket 3 is made of a non-metallic material with low thermal conductivity and cold resistance, preferably nylon or silicone, and its temperature range should meet the working environment requirements of -40℃ to -5℃. The cold insulation gasket 3 is disc-shaped, with a flat inner surface that fits against the outer surface of the end plate 2. A clearance hole 3.2 is provided at the geometric center of the cold insulation gasket 3 corresponding to the position of the rotating shaft 4. The diameter of the clearance hole 3.2 is slightly larger than the outer diameter of the rotating shaft 4 to avoid interference.

[0030] The outer dimensions of end plate 2 are basically the same as the outer dimensions of evaporator cylinder 1. The outer dimensions of cold insulation gasket 3 are basically the same as the outer dimensions of end plate 2, so that the entire end face is uniformly protected. Alternatively, the outer dimensions of cold insulation gasket 3 can be smaller than the outer dimensions of end plate 2.

[0031] In this embodiment, the end plate 2 and the cold insulation gasket 3, made of different materials, can be manufactured by integral injection molding, or the end plate 2 and the cold insulation gasket 3, made of different materials, can be manufactured separately and then fixed together by gluing, snapping, or fasteners. Furthermore, the end plate 2 and the cold insulation gasket 3 can have planar contact or concave-convex surface contact.

[0032] Specifically, the outer side of the end plate 2 and the inner side of the cold insulation gasket 3 are both flat, and there is a planar contact between them. The planar contact between the end plate 2 and the cold insulation gasket 3 is fixed by adhesive injection.

[0033] That is, the cold insulation gasket 3 and the end plate 2 are in planar contact and are evenly glued and fixed on the contact surface using a cold-resistant adhesive. The adhesive should maintain a bonding strength of not less than 5MPa at -40℃ to ensure that it does not fall off during long-term operation. The cold insulation gasket 3, fixed by the above planar bonding process, has a thermal conductivity much lower than that of the metal end plate 2, thus forming an effective thermal resistance layer on the outside of the end plate 2. This thermal resistance layer significantly reduces the loss of cold energy from the evaporator to the external environment, making it difficult for the temperature of the outer surface of the end plate 2 to drop below the freezing point. Therefore, even if the snow machine operates continuously for a long time, it can effectively prevent thick ice from condensing on the end plate 2, which reduces the rotational load and energy consumption of the equipment, avoids the problem of reduced ice quality caused by uneven icing, and extends the service life of the equipment.

[0034] High-temperature resistant non-metallic cold-insulating gaskets 3 are installed on the outer side of the metal end plates 2 at both ends of the evaporator cylinder 1, creating an effective thermal resistance barrier. Tests show that the outer surface temperature of the end plates 2 can be increased by 5-15℃, completely preventing icing on the surface of the end plates 2. At the same time, this structure does not change the main structure of the existing evaporator, and has the advantages of simple structure, convenient assembly, and low cost, significantly extending the equipment maintenance cycle and service life, and ensuring the stability of the flake ice quality. Example

[0035] See Figure 5 The evaporator protection structure of this snowflake machine differs from the first embodiment in that: the outer side of the end plate 2 is provided with a textured groove 2.1, the inner side of the cold insulation pad 3 is a flat surface, and the flat surface makes contact with the textured groove 2.1. The contact point between the end plate 2 and the cold insulation pad 3 is fixed by adhesive injection.

[0036] During assembly, adhesive is applied to the outer side of the end plate 2 with its textured grooves 2.1. When the flat surface of the insulating gasket 3 is in contact with the textured surface of the end plate 2, the liquid adhesive flows in and fills all the textured grooves 2.1. After curing, the adhesive not only provides bonding force in the planar direction but also forms a strong mechanical interlocking structure with the textured grooves 2.1 in the direction perpendicular to the plane. This combination of chemical bonding and mechanical interlocking greatly enhances the shear resistance of the bonding surface and the overall connection strength, making it particularly suitable for operating conditions involving vibration or thermal stress.

[0037] The rest of the content is the same as in the first embodiment, and will not be repeated here. Example

[0038] See Figure 6 The evaporator protection structure of this snowflake machine differs from the first embodiment in that: a flat mounting groove 2.2 is provided on the outer side of the end plate 2, the inner side of the cold insulation gasket 3 is flat and is embedded in the flat mounting groove 2.2 through the flat surface, and the end plate 2 and the cold insulation gasket 3 are fixed by adhesive injection at the embedded mating point.

[0039] During assembly, adhesive is applied to the bottom and / or side walls of the flat assembly groove 2.2, and then the cold insulation gasket 3 is pressed into the flat assembly groove 2.2. This structural design allows the cold insulation gasket 3 to be constrained radially by the groove wall, achieving automatic centering and effectively preventing radial slippage that may occur during operation.

[0040] The rest of the content is the same as in the first embodiment, and will not be repeated here. Example

[0041] See Figure 7 The evaporator protection structure of this snowflake machine differs from the first embodiment in that: the outer side of the end plate 2 is flat and is provided with positioning holes 2.3, the inner side of the cold insulation pad 3 is flat and is provided with positioning posts 3.1, the cold insulation pad 3 and the end plate 2 are in planar contact, and the two are positioned and fitted together by positioning posts 3.1 and positioning holes 2.3, and the planar contact point or positioning contact point between the end plate 2 and the cold insulation pad 3 is fixed by adhesive injection.

[0042] The positioning pin 3.1 and the positioning hole 2.3 adopt a small clearance transition fit or clearance fit.

[0043] During assembly, the positioning pins 3.1 on the insulation pad 3 are first inserted into the positioning holes 2.3 on the end plate 2, which quickly and accurately aligns the two parts. After pre-positioning, the two parts are then finally bonded together by injecting or applying adhesive to the contact area. This method of positioning first and then bonding significantly improves assembly efficiency, is particularly suitable for mass production, and ensures product consistency.

[0044] The rest of the content is the same as in the first embodiment, and will not be repeated here.

[0045] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. An evaporator protection structure for a snowflake machine, comprising an evaporator cylinder (1), characterized in that: The evaporator cylinder (1) has end plates (2) at both ends of its axial direction. Cold insulation gaskets (3) are provided on the two end plates (2). The cold insulation gaskets (3) are made of cold-resistant materials and are directly fixed to the outside of the end plates (2).

2. The evaporator protection structure of the snow machine according to claim 1, characterized in that: The end plate (2) is made of metal, and the cold insulation gasket (3) is made of nylon or silicone.

3. The evaporator protection structure of the snow machine according to claim 2, characterized in that: The end plate (2) and the cold insulation gasket (3) are independent components, and they are fixed to each other by pasting, snapping, or fasteners, or the end plate (2) and the cold insulation gasket (3) are integrally injection molded.

4. The evaporator protection structure of the snow machine according to claim 1, characterized in that: The outer dimensions of the cold insulation gasket (3) are basically the same as the outer dimensions of the evaporator cylinder (1) or the end plate (2), or the outer dimensions of the cold insulation gasket (3) are smaller than the outer dimensions of the evaporator cylinder (1) or the end plate (2).

5. The evaporator protection structure of the snow machine according to claim 1, characterized in that: The end plate (2) and the cold insulation pad (3) are in contact with each other in a planar or concave-convex manner.

6. The evaporator protection structure of the snow machine according to claim 1 or 5, characterized in that: The outer side of the end plate (2) and the inner side of the cold insulation pad (3) are both flat, and the two are in planar contact. The planar contact between the end plate (2) and the cold insulation pad (3) is fixed by adhesive injection.

7. The evaporator protection structure of the snow machine according to claim 1 or 5, characterized in that: The end plate (2) is provided with a textured groove (2.1) on the outside. The inner side of the cold insulation pad (3) is a plane and makes contact with the textured groove (2.1) through the plane. The end plate (2) and the cold insulation pad (3) are fixed by adhesive injection.

8. The evaporator protection structure of the snow machine according to claim 1 or 5, characterized in that: The end plate (2) is provided with a planar assembly groove (2.2) on the outside. The inner side of the cold insulation pad (3) is a plane and is embedded in the planar assembly groove (2.2) through the plane. The end plate (2) and the cold insulation pad (3) are fixed by adhesive injection at the embedded joint.

9. The evaporator protection structure of the snow machine according to claim 1 or 5, characterized in that: The outer side of the end plate (2) is flat and has a positioning hole (2.3). The inner side of the cold insulation pad (3) is flat and has a positioning post (3.1). The cold insulation pad (3) and the end plate (2) are in planar contact and are positioned and fitted by the positioning post (3.1) and the positioning hole (2.3). The planar contact point or positioning contact point between the end plate (2) and the cold insulation pad (3) is fixed by adhesive injection.

10. The evaporator protection structure of the snow machine according to claim 1, characterized in that: The evaporator cylinder (1) has open openings at both ends, and the end plate (2) is fixedly installed on the open opening. The end plate (2) has a connection hole (2.4) and a rotating shaft (4) is connected through the connection hole (2.4). The cold insulation gasket (3) has a clearance hole (3.2) corresponding to the rotating shaft (4). The outer wall of the evaporator cylinder (1) also has an ice-forming groove (1.1).

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