Evaporator and cold food processing device

Abstract

The utility model discloses an evaporator and a cold food processing device, belongs to the food processing technology, solves the problem that an existing evaporator is difficult to weld, and is characterized in that an annular closed space is arranged, a refrigerant flow channel which is roundabout back and forth is arranged between a first end wall and a second end wall in the annular closed space, and an isolation wall is further arranged in the annular closed space. The inlet end of the refrigerant flow channel is located on one side of the isolation wall, the outlet end of the refrigerant flow channel is located on the other side of the isolation wall, the inlet end is connected with the refrigerant inlet pipe, and the outlet end is connected with the refrigerant outlet pipe. The refrigerant flow channel is regular in shape and easy to weld and manufacture. The outlet end and the inlet end are both located on the inner side of the first end wall or the inner side of the second end wall, and the refrigerant inlet pipe and the refrigerant outlet pipe are located on the first end wall or the second end wall in parallel. The refrigerant inlet pipe and the refrigerant outlet pipe can be regularly arranged, the occupied space is saved, and the product structure is simplified and optimized.

Description

Technical Field

[0001] The utility model belongs to food processing technology, and in particular relates to an evaporator and a cold food processing device. Background Art

[0002] An evaporator used to cool food absorbs heat from the food during operation to cool it. One existing evaporator uses a spiral copper tube wrapped around the inner wall of a stainless steel container and uses thermally conductive silicone grease as a medium to conduct heat (or cooling). Because the copper tube is a round tube, it only contacts one line of the spiral when in contact with the inner wall of the stainless steel container, resulting in inefficient heat transfer and significant temperature loss. The copper tube is also expensive.

[0003] The utility model patent application with application publication number CN118463436A discloses an evaporator and refrigeration equipment, wherein the evaporator housing is provided with a condensation input pipe, an air duct, and a refrigerant area; the refrigerant area is arranged around the inner wall of the evaporator housing, and a refrigerant channel is formed between the refrigerant area and the evaporator housing, and condensed liquid in the refrigerant channel acts on the inner wall of the evaporator housing; the input end of the refrigerant channel is connected to the condenser through the condensation input pipe, and the output end of the refrigerant channel is connected to the compressor through the air duct. In addition, the refrigerant area includes at least one spiral protrusion, which is sealed to the inner wall of the evaporator housing, and the inner cavity of the protrusion and the evaporator housing enclose at least one refrigerant channel. In addition, the protrusion and the inner wall of the evaporator housing are integrally stamped and formed, and the refrigerant channel is enclosed between the inner cavity of the protrusion and the evaporator housing.

[0004] The evaporator disclosed in this patent document is difficult to weld together due to the spirally raised components that form the refrigerant area of the evaporator shell. Furthermore, the refrigerant channel is spiral-shaped, with the inlet and outlet ports located at either end of the refrigerant shell. This creates a cluttered arrangement of the condensation inlet and air ducts, taking up a large amount of space. Utility Model Content

[0005] The technical problem to be solved and the technical task proposed by the utility model are to overcome the defect of the existing evaporator being difficult to weld, to provide an evaporator and a cold food processing device that are easy to weld and manufacture, and on this basis to simplify the product structure.

[0006] In order to achieve the above-mentioned purpose, the evaporator of the present invention is constructed with an annular enclosed space, which is characterized in that: a refrigerant flow channel is constructed in the annular enclosed space, which winds back and forth between the first end wall and the second end wall, and an isolation wall is also constructed in the annular enclosed space. The inlet end of the refrigerant flow channel is located on one side of the isolation wall, and the outlet end of the refrigerant flow channel is located on the other side of the isolation wall. The inlet end is connected to the refrigerant inlet pipe, and the outlet end is connected to the refrigerant outlet pipe.

[0007] In the evaporator, the refrigerant flow channel is constructed to meander back and forth between the first end wall and the second end wall instead of being spiral. The refrigerant flow channel has a regular shape and is easy to weld and manufacture.

[0008] Preferably, a first flow channel wall and a second flow channel wall are spaced apart within the annular enclosed space, a channel being maintained between the first and second flow channel walls. The first flow channel wall is connected to the first end wall and maintains a first communication port with the second end wall. The second flow channel wall is connected to the second end wall and maintains a second communication port with the first end wall. The channel is formed by connecting the first and second communication ports to form the refrigerant flow channel. Accordingly, the length of the refrigerant flow channel can be changed according to the desired arrangement of the first and second flow channel walls, thereby changing the time it takes for the refrigerant to flow through the evaporator to achieve the desired cooling effect.

[0009] Preferably, the partition wall, the first flow channel wall, and the second flow channel wall extend in the same direction, with the first end of the partition wall connected to the first end wall and the second end of the partition wall connected to the second end wall to define the outlet and inlet ends of the refrigerant flow channel. Accordingly, the first flow channel wall, the second flow channel wall, and the partition wall can have the same cross-sectional structure, differing only in length. This facilitates fabrication from the same raw material, such as a profile, and reduces manufacturing costs.

[0010] Preferably, the isolation wall, the first flow channel wall and the second flow channel wall are evenly distributed in the circumferential direction of the annular closed space, thereby maintaining consistent flowability of the refrigerant flow channel.

[0011] Preferably, the annular enclosed space is surrounded by an inner wall, an outer wall, a first end wall, and a second end wall. The outer wall is concentrically sleeved outside the inner wall to form a regular annular enclosed space between the two. The first end wall serves as the boundary of the first end of the annular enclosed space, and the second end wall serves as the boundary of the second end of the annular enclosed space. This ensures a simple, compact structure that is easy to manufacture.

[0012] Preferably, the outlet and inlet ports are both located on the inner side of the first end wall or the inner side of the second end wall, and the refrigerant inlet pipe and the refrigerant outlet pipe are located side by side on the first end wall or the second end wall. Accordingly, the refrigerant inlet and outlet pipes can be arranged in an orderly manner, saving space and simplifying and optimizing the product structure.

[0013] Preferably, the partition wall, the first flow channel wall, and the second flow channel wall are all welded to the inner wall via inner folds and to the outer wall via outer folds, thereby ensuring both welding strength and sealing of the refrigerant flow channel.

[0014] Preferably, the first end wall is disposed at the first end of the inner wall, the second end wall is disposed at the second end of the inner wall, and the partition wall, the first flow channel wall, the second flow channel wall, the first end wall, the second end wall, and the inner wall form a core body, which is placed inside the outer wall and welded to the outer wall. This facilitates welding.

[0015] Preferably, both the inner wall and the outer wall are cylindrical, with the inner wall retaining a receiving space; an outer flange is disposed at the first end of the outer wall, and an inner flange is disposed at the second end of the outer wall, with the inner flange serving as a bearing portion. This facilitates installation of the evaporator in its working position.

[0016] To achieve the above objectives, the cold food processing device of the present invention is equipped with a food storage chamber having a feeding port and a discharging port. The evaporator of the present invention is arranged in the food storage chamber to cool the food in the food storage chamber. Thus, the food in the food storage chamber can be cooled and kept warm.

[0017] The utility model is characterized by a refrigerant flow channel that is constructed in an annular enclosed space and that zigzags back and forth between the first end wall and the second end wall. A partition wall is also constructed in the annular enclosed space. The inlet end of the refrigerant flow channel is located on one side of the partition wall, and the outlet end of the refrigerant flow channel is located on the other side of the partition wall. The inlet end is connected to the refrigerant inlet pipe, and the outlet end is connected to the refrigerant outlet pipe. The refrigerant flow channel has a regular shape and is easy to weld and manufacture.

[0018] The utility model locates both the outlet and inlet ports on the inner side of the first end wall or the inner side of the second end wall, and the refrigerant inlet pipe and the refrigerant outlet pipe are located side by side on the first end wall or the second end wall. This allows for a regular arrangement of the refrigerant inlet and outlet pipes, saving space and simplifying and optimizing the product structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an isometric view of the evaporator of the present utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of another perspective of the evaporator shown;

[0021] Figure 3 This is a schematic diagram of the orthographic projection of the evaporator of the present utility model;

[0022] Figure 4 for Figure 3 AA-direction cross-sectional enlarged view;

[0023] Figure 5 for Figure 3 BB-direction cross-sectional enlarged view;

[0024] Figure 6 for Figure 3 The enlarged CC section view;

[0025] Figure 7 for Figure 3 The schematic diagram of the exploded structure of the evaporator shown;

[0026] Figure 8 for Figure 7a schematic diagram of another perspective of the structure shown;

[0027] Figure 9 It is a schematic diagram of the orthographic projection of the shell of the evaporator of the present invention;

[0028] Figure 10 for Figure 9 DD sectional view;

[0029] Figure 11 This is a schematic diagram of the distribution of the refrigerant flow channel on the flattened inner wall of the utility model;

[0030] Figure 12 This is a schematic diagram of the cold food processing device of the present invention;

[0031] Description of the numbers in the figure:

[0032] 100 evaporator, 101 annular enclosed space, 102 refrigerant flow channel, 103 inlet end, 104 outlet end, 105 channel, 106 first communication port, 107 second communication port, 108 accommodation space;

[0033] 110 core body, 111 first end wall, 112 second end wall, 113 partition wall, 114 first flow channel wall, 115 second flow channel wall, 116 inner wall, 117 inner folding edge, 118 outer folding edge;

[0034] 120 outer wall, 121 outer flange edge, 122 inner flange edge;

[0035] 130 refrigerant access pipe;

[0036] 140 refrigerant outlet pipe;

[0037] 200 cold food processing device, 201 food storage chamber, 202 feeding port, 203 output port, 204 lid, 205 handle, 206 stirring device. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] The terms "including" and "having" and any variations thereof in the description and claims of the present utility model are intended to cover non-exclusive inclusions. For example, a method or product that includes a series of technical features is not necessarily limited to those technical features clearly listed, and may also include other technical features that are not clearly listed and can be included in the method or product.

[0040] In the description of the present invention, it should be understood that the technical features defined by the terms "first", "second" and other sequential concepts are only for the purpose of clearly describing the defined technical features so that the defined technical features can be clearly distinguished from other technical features, and do not represent such naming in actual implementation. Therefore, it cannot be understood as a limitation on the present invention.

[0041] The present invention is described in detail below with reference to specific embodiments and accompanying drawings.

[0042] Figure 1-8 The evaporator 100 shown is configured with Figure 9-10 The annular closed space 101 is shown, and a refrigerant flow channel 102 is constructed in the annular closed space 101 and is circuitous between the first end wall 111 and the second end wall 112. Figure 11 As shown, it is assumed that the inner wall 116 is flattened, and the distribution of the refrigerant flow channel 102 on the flattened inner wall is schematically shown. Figure 11 The dotted line in the figure represents the path of refrigerant flow channel 102. A partition wall 113 is also provided within the annular enclosed space 101. The refrigerant flow channel inlet 103 is located on one side of the partition wall 113, and the refrigerant flow channel outlet 104 is located on the other side of the partition wall 113. The inlet 103 is connected to the refrigerant inlet pipe 130, and the outlet 104 is connected to the refrigerant outlet pipe 140. In this evaporator, the refrigerant flow channel is designed to meander back and forth between the first and second end walls, rather than spirally. This results in a regular shape for easy welding and manufacturing.

[0043] In the structure shown in the figure, the first flow channel wall 114 and the second flow channel wall 115 are spaced apart in the annular closed space 101. The first flow channel wall 114 and the second flow channel wall 115 maintain a channel 105. The first flow channel wall 114 is connected to the first end wall 111 and maintains a first connecting port 106 with the second end wall 112. The second flow channel wall 115 is connected to the second end wall 112 and maintains a second connecting port 107 with the first end wall 111. Each channel is connected by the first connecting port and the second connecting port to form a refrigerant flow channel 102. Figure 4 In FIG, the connection of the second communication port is marked with an arrow. Figure 6In the figure, the connection of the first communication port is indicated by an arrow. Accordingly, the length of the refrigerant flow path can be varied by arranging the number of first and second flow channel walls as needed, thereby changing the time it takes for the refrigerant to flow through the evaporator to achieve the desired cooling effect. In other embodiments, the number of first and second flow channel walls can be increased or decreased as needed to increase or decrease the number of channels between the first and second flow channel walls and the length of the refrigerant flow path.

[0044] In the illustrated structure, the partition wall 113, the first flow channel wall 114, and the second flow channel wall 115 extend in the same direction. The first end of the partition wall 113 is connected to the first end wall 111, and the second end of the partition wall 113 is connected to the second end wall 112, thereby defining the outlet end 104 and the inlet end 103 of the refrigerant flow channel. Accordingly, the first flow channel wall 114, the second flow channel wall 115, and the partition wall 113 can have the same cross-sectional structure, differing only in length. This facilitates the use of the same raw material, such as profiled material, as needed, facilitating manufacturing and reducing manufacturing costs.

[0045] In the illustrated structure, the isolation wall 113, the first channel wall 114 and the second channel wall 115 are evenly distributed around the annular closed space 101. This prevents the refrigerant channel 102 from having a partially excessively large or small diameter, thereby maintaining consistent flowability.

[0046] In the illustrated structure, annular enclosed space 101 is enclosed by inner wall 116, outer wall 120, first end wall 111, and second end wall 112. Outer wall 120 is concentrically positioned outside inner wall 116 to form a regular annular enclosed space therebetween. First end wall 111 serves as the boundary of the first end of annular enclosed space 101, and second end wall 112 serves as the boundary of the second end of annular enclosed space 101. This ensures a simple, compact structure that is easy to manufacture.

[0047] In the illustrated structure, the outlet end 103 and the inlet end 104 are both located on the inner side of the first end wall 111, and the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 are located side by side on the first end wall. Accordingly, the refrigerant inlet pipe and the refrigerant outlet pipe can be arranged regularly, saving space, simplifying and optimizing the product structure. Moreover, as described below, when an outer flange is configured at the first end of the outer wall for installing the evaporator to the food storage cavity, the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 are located at the same end as the outer flange, which facilitates the arrangement of the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140, and can shorten the length of the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140, so as to keep the refrigerant flow path as long as possible. Further, as Figure 12As shown, the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 are located at the same end as the outer flange, providing space for the inner flange, which serves as a bearing, to support the rotation of the stirring device. In other embodiments, the outlet end 103 and the inlet end 104 can also be located on the inner side of the second end wall 112, with the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 located side by side on the second end wall. In this case, to prevent the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 from obstructing the rotation of the stirring device, the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 are arranged in the accommodation space 108.

[0048] In the illustrated structure, the isolation wall 113, the first flow channel wall 114, and the second flow channel wall 115 are all welded to the inner wall 116 via the inner fold 117, and are all welded to the outer wall 120 via the outer fold 118, thereby ensuring both welding strength and sealing of the refrigerant flow channel.

[0049] In the illustrated structure, the first end wall 111 is integrally configured with the first end of the inner wall 116, and the second end wall 112 is integrally configured with the second end of the inner wall 116. The inner edges 117 of the partition wall 113, the first flow channel wall 114, and the second flow channel wall 115 are welded to the inner wall 116. Both ends of the partition wall 113 are also welded to the first and second end walls 111, 112. The first end of the first flow channel wall 114 is welded to the first end wall 111, and the second end of the second flow channel wall 115 is welded to the second end wall 112, thus forming the core 110. The core 110 is placed within the outer wall 120. The outer edges 118 of the partition wall 113, the first flow channel wall 114, and the second flow channel wall 115 are welded to the outer wall 120. The outer edges of the first and second end walls 111, 112 are welded to the outer wall 120, thereby welding the core and the outer wall together. Furthermore, the use of laser welding or argon arc welding ensures weld quality and simplifies the welding process.

[0050] In the illustrated structure, both inner wall 116 and outer wall 120 are cylindrical, with inner wall 116 retaining a receiving space 108. Outer wall 120 has an outer flange 121 at its first end and an inner flange 122 at its second end, serving as a bearing. This facilitates installation of the evaporator in its operating position.

[0051] The evaporator 100 of the structure shown above is fed with refrigerant from the refrigerant inlet pipe 130 to the inlet end 103. Figure 11 As shown, the refrigerant absorbs external heat when flowing through the refrigerant flow channel 102 and eventually flows out from the outlet end 104 and the refrigerant outlet pipe 140.

[0052] In order to ensure efficient heat conduction, the inner wall, outer wall, first end wall, second end wall, isolation wall, first flow channel wall and second flow channel wall are preferably made of stainless steel, and can ensure the hygiene requirements of food processing.

[0053] like Figure 12 The cold food processing device 200 shown in FIG. includes a food storage chamber 201 having a feeding port 202 and a delivery port 203. The evaporator 100 of the present invention is also located within the food storage chamber 201 to cool the food stored therein. During operation, the food in the food storage chamber contacts the evaporator, absorbing heat and cooling the food, thereby maintaining its temperature. Lid 204 allows for feeding food into the food storage chamber 101 through the feeding port 203, while a handle 205 opens the delivery port 203 to dispense food.

[0054] Given that food has poor thermal conductivity and that food that comes into contact with the evaporator may cool and freeze after absorbing heat, a stirring device 206, such as a reamer assembly, is provided in the food storage chamber. During operation, the stirring device stirs the food against the outer surface of the outer wall 120, thereby preventing ice from forming on the outer surface of the outer wall and allowing the food to cool evenly. Therefore, the stirring device 206 is arranged concentrically with the evaporator 100, i.e., the axis of rotation of the stirring device is in the same straight line as the axis of the evaporator. Furthermore, the entire evaporator is assembled and fixed to the food storage chamber via the outer flange 121 at the first end of the outer wall, and the stirring device is at least partially (e.g., Figure 12 The right end shown in the figure is supported by the inner flange 122 for rotation, thereby maintaining a compact structure and a cooperative relationship between the stirring device and the evaporator.

[0055] The interior of the storage space 108 on the inner side of the inner wall 116 is equipped with spacers and an insulation layer to prevent food from contacting the inner wall. In this way, during operation, the evaporator is immersed in the food to cool it. Therefore, the food is preferably in the form of a liquid, an ice-liquid mixture, or snowflakes. The cold food processing device can also be embodied as a snow melter, a shaved ice machine, or other specific forms.

Claims

1. An evaporator having an annular closed space (101) and characterized by: A refrigerant flow channel (102) is constructed in the annular closed space and runs back and forth between the first end wall (111) and the second end wall (112). A partition wall (113) is also constructed in the annular closed space. The inlet end (103) of the refrigerant flow channel is located on one side of the partition wall, and the outlet end (104) of the refrigerant flow channel is located on the other side of the partition wall. The inlet end is connected to the refrigerant inlet pipe (130), and the outlet end is connected to the refrigerant outlet pipe (140).

2. The evaporator according to claim 1, wherein: The first flow channel wall (114) and the second flow channel wall (115) are spaced apart in the annular closed space (101), and a channel (105) is maintained between the first flow channel wall and the second flow channel wall. The first flow channel wall (114) is connected to the first end wall (111) and maintains a first connecting port (106) with the second end wall (112). The second flow channel wall (115) is connected to the second end wall (112) and maintains a second connecting port (107) with the first end wall (111). The channel (105) is connected by the first connecting port (106) and the second connecting port (107) to form the refrigerant flow channel (102).

3. The evaporator according to claim 2, wherein: The isolation wall (113), the first flow channel wall (114) and the second flow channel wall (115) extend in the same direction, the first end of the isolation wall (113) is connected to the first end wall (111), and the second end of the isolation wall (113) is connected to the second end wall (112) to define the outlet end (104) and the inlet end (103) of the refrigerant flow channel.

4. The evaporator according to claim 3, wherein: The isolation wall (113), the first flow channel wall (114) and the second flow channel wall (115) are evenly distributed in the circumferential direction of the annular closed space (101).

5. The evaporator according to claim 2, wherein: The annular closed space (101) is surrounded by an inner wall (116), an outer wall (120), a first end wall (111) and a second end wall (112). The outer wall (120) is concentrically sleeved outside the inner wall (116) to form a regular annular closed space (101) therebetween. The first end wall (111) serves as the boundary of the first end of the annular closed space, and the second end wall (112) serves as the boundary of the second end of the annular closed space.

6. The evaporator according to claim 5, characterized in that: The outlet end (104) and the inlet end (103) are both located on the inner side of the first end wall (111) or the inner side of the second end wall (112), and the refrigerant inlet pipe (130) and the refrigerant outlet pipe (140) are located side by side on the first end wall (111) or the second end wall (112).

7. The evaporator according to claim 5, characterized in that: The partition wall (113), the first flow channel wall (114) and the second flow channel wall (115) are all welded to the inner wall (116) via the inner folding edge (117) and are all welded to the outer wall (120) via the outer folding edge (118).

8. The evaporator according to claim 5, wherein: The first end wall (111) is arranged at the first end of the inner wall (116), and the second end wall (112) is arranged at the second end of the inner wall (116). The isolation wall (113), the first flow channel wall (114), the second flow channel wall (115), the first end wall (111), the second end wall (112), and the inner wall (116) constitute a core body (110). The core body (110) is placed inside the outer wall (120) and is welded to the outer wall.

9. The evaporator according to any one of claims 5 to 8, characterized in that: The inner wall (116) and the outer wall (120) are both cylindrical, and the inner side of the inner wall (116) maintains an accommodating space (108); the first end of the outer wall (120) is configured with an outer flange (121), and the second end of the outer wall (120) is configured with an inner flange (122), and the inner flange (122) serves as a bearing portion.

10. A cold food processing device, comprising a food storage cavity (201), wherein the food storage cavity (201) has a feeding port (202) and an output port (203), and wherein: The evaporator (100) according to any one of claims 1 to 9 is arranged in the food storage cavity (201) for cooling the food in the food storage cavity.

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