Evaporator and cold food processing device

Abstract

The invention 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 formed, a refrigerant flow channel circuitous back and forth is formed between a first end wall and a second end wall in the annular closed space, and a partition 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 invention 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 food to cool the food when working. An existing evaporator is a spiral copper tube coiled on the inner wall of a stainless steel tank, and uses thermal conductive silicone grease as a medium to conduct heat (cold). Since the spiral copper tube is a round tube, it only contacts one spiral line when it contacts the inner wall of the stainless steel tank, so the heat conduction efficiency is not high and the temperature loss is serious. The copper tube is expensive.

[0003] The invention patent application with application publication number CN118463436A discloses an evaporator and a refrigeration device, wherein a condensation input pipe, an air guide pipe and a refrigerant area are arranged in the evaporator shell; the refrigerant area is arranged around the inner wall of the evaporator shell, and a refrigerant channel is formed between the refrigerant area and the evaporator shell, and the condensed liquid in the refrigerant channel acts on the inner wall of the evaporator shell; 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 guide pipe. In addition, the refrigerant area includes at least one spiral convex component, the convex component is sealed and connected to the inner wall of the evaporator shell, and at least one refrigerant channel is formed between the inner cavity of the convex component and the evaporator shell. In addition, the convex component and the inner wall of the evaporator shell are an integrated stamping structure, and the refrigerant channel is formed between the inner cavity of the convex component and the evaporator shell.

[0004] The evaporator disclosed in the patent document is difficult to weld the refrigerant area of ​​the evaporator shell due to the spiral protruding component structure. In addition, the refrigerant channel is spiral, the input pipe opening and the output pipe opening are distributed at both ends of the refrigerant shell, and the arrangement of the condensation input pipe and the air guide pipe is messy, occupying a large space. Summary of the invention

[0005] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defect that the existing evaporator is 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 closed space, which is characterized in that: a refrigerant flow channel is constructed in the annular closed space and iterates back and forth between the first end wall and the second end wall, and a partition wall is also constructed in the annular closed 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 access pipe, and the outlet end is connected to the refrigerant outlet pipe.

[0007] The evaporator has a refrigerant flow channel that meanders 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, the first flow channel wall and the second flow channel wall are spaced apart in the annular closed space, a channel is maintained between the first flow channel wall and the second flow channel wall, the first flow channel wall is connected to the first end wall and maintains a first connecting port with the second end wall, the second flow channel wall is connected to the second end wall and maintains a second connecting port with the first end wall, and the channel is connected by the first connecting port and the second connecting port to form the refrigerant flow channel. Accordingly, the length of the refrigerant flow channel can be changed according to the density of the first flow channel wall and the second flow channel wall, and the time for the refrigerant to flow through the evaporator can be changed to achieve the desired refrigeration effect.

[0009] Preferably, the partition wall, the first flow channel wall and the second flow channel wall extend in the same direction, the first end of the partition wall is connected to the first end wall, and the second end of the partition wall is connected to the second end wall to define the outlet and inlet 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, only different in length, so it is convenient to cut from the same raw material such as profiles as needed, which is conducive to manufacturing and reduces manufacturing costs.

[0010] Preferably, the isolation wall, the first flow channel wall and the second flow channel wall are evenly arranged in the circumferential direction of the annular closed space, thereby allowing the refrigerant flow channel to maintain consistent fluidity.

[0011] Preferably, the annular closed 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 closed space between the two, the first end wall serves as a boundary of the first end of the annular closed space, and the second end wall serves as a boundary of the second end of the annular closed space. Thus, the structure is simple, compact and easy to manufacture.

[0012] Preferably, the outlet and the inlet 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 pipe and the refrigerant outlet pipe can be arranged regularly, saving space, simplifying and optimizing the product structure.

[0013] Preferably, the isolation wall, the first flow channel wall and the second flow channel wall are all welded to the inner wall through the inner folding edge and are all welded to the outer wall through the outer folding edge, so as to ensure both the welding strength and the sealing of the refrigerant flow channel.

[0014] Preferably, the first end wall is arranged at the first end of the inner wall, the second end wall is arranged at the second end of the inner wall, 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, and the core body is placed inside the outer wall and welded to the outer wall. Thus, welding is facilitated.

[0015] Preferably, the inner wall and the outer wall are both cylindrical, the inner side of the inner wall retains the accommodation space, the first end of the outer wall is provided with an outer flange, the second end of the outer wall is provided with an inner flange, and the inner flange serves as a bearing portion. Thus, it is convenient to install the evaporator in the working position.

[0016] To achieve the above object, the cold food processing device of the present invention is equipped with a food storage cavity, the food storage cavity has a feeding port and an output port, and the evaporator of the present invention is arranged in the food storage cavity to cool the food in the food storage cavity. Accordingly, the food in the food storage cavity can be cooled and kept warm.

[0017] The present invention is characterized in that: a refrigerant flow channel is constructed in the annular closed space and goes back and forth between the first end wall and the second end wall, a partition wall is also constructed in the annular closed space, the inlet end of the refrigerant flow channel is located on one side of the partition wall, 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 present invention locates both the outlet and the inlet 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. The refrigerant inlet pipe and the refrigerant outlet pipe can be arranged regularly, saving space, simplifying and optimizing the product structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an isometric view of the evaporator of the present invention;

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

[0021] Figure 3 It is a schematic diagram of the orthographic projection of the evaporator of the present invention;

[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 A schematic diagram of the structural breakdown of the evaporator shown;

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

[0027] Fig. 9 is a schematic diagram of an orthographic projection of a shell of an evaporator of the present invention;

[0028] Fig.10 for Fig. 9 DD section view;

[0029] Fig.11 It is a schematic diagram of the distribution of the refrigerant flow channel on the flattened inner wall of the present invention;

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

[0031] Description of the numbers in the figure:

[0032] 100 evaporator, 101 annular closed 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 cavity, 202 feeding port, 203 output port, 204 cover, 205 handle, 206 stirring device. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but 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 is necessary to understand that the technical features defined by the terms "first", "second" and the like with 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, but do not represent such naming in actual implementation, and therefore cannot be understood as a limitation of the present invention.

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

[0042] Figure 1-8 The evaporator 100 shown is configured with Figure 9-10 The annular closed space 101 shown in the figure has a refrigerant flow channel 102 that goes back and forth between the first end wall 111 and the second end wall 112. Fig.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. Fig.11 The dotted line in the figure expresses the path of the refrigerant flow channel 102. A partition wall 113 is also arranged in the annular closed space 101. The inlet end 103 of the refrigerant flow channel is located on one side of the partition wall 113, and the outlet end 104 of the refrigerant flow channel is located on the other side of the partition wall 113. The inlet end 103 is connected to the refrigerant inlet pipe 130, and the outlet end 104 is connected to the refrigerant outlet pipe 140. In the evaporator, the refrigerant flow channel is arranged to meander back and forth between the first end wall and the second end wall, rather than in a spiral shape. The refrigerant flow channel has a regular shape and is easy to weld and manufacture.

[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, and the channel 105 is maintained between the first flow channel wall 114 and the second flow channel wall 115. 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. 1 , the connection of the second connection port is indicated by an arrow. Figure 6 In the figure, the connection of the first connecting port is marked with an arrow. Accordingly, the length of the refrigerant flow channel can be changed according to the number of the first flow channel wall and the second flow channel wall, and the time for the refrigerant to flow through the evaporator can be changed to achieve the desired cooling effect. In other embodiments, the number of the first flow channel wall and the second flow channel wall can be increased or decreased as needed to increase or decrease the number of channels between the first flow channel wall and the second flow channel wall and the length of the refrigerant flow channel.

[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 to define 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, only different in length, so it is convenient to cut from the same raw material such as profiles as needed, which is conducive to manufacturing and reduces manufacturing costs.

[0045] In the illustrated structure, the isolation wall 113, the first channel wall 114 and the second channel wall 115 are evenly arranged in the circumferential direction of the annular closed space 101. Thus, the local diameter of the refrigerant channel 102 is prevented from being too large or too small, so that the refrigerant channel 102 maintains consistent fluidity.

[0046] In the structure shown in the figure, the annular closed space 101 is surrounded by the inner wall 116, the outer wall 120, the first end wall 111 and the second end wall 112. The outer wall 120 is concentrically sleeved outside the inner wall 116 to form a regular annular closed space between the two. The first end wall 111 serves as the boundary of the first end of the annular closed space 101, and the second end wall 112 serves as the boundary of the second end of the annular closed space 101. Thus, the structure is simple, compact and 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. Furthermore, as Fig.12 As shown, the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 are located at the same end as the outer flange, and also provide a movable space for the inner flange as a bearing to support the stirring device to rotate. 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, and the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 are located side by side on the second end wall. At this time, in order to prevent the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 from hindering the rotation of the stirring device, the refrigerant inlet pipe 130 and the refrigerant outlet pipe 140 are arranged in the accommodating space 108.

[0048] In the structure shown in the figure, 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 the welding strength and the sealing of the refrigerant flow channel.

[0049] In the illustrated structure, the first end wall 111 is integrally configured at the first end of the inner wall 116, and the second end wall 112 is integrally configured at 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, and the two ends of the partition wall 113 are also welded to the first end wall 111 and the second end wall 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, so as to form the core 110. The core 110 is placed in 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, and the outer edges of the first end wall 111 and the second end wall 112 are welded to the outer wall 120, that is, the core and the outer wall are welded together. Moreover, the use of laser welding or argon arc welding can ensure the welding quality and simplify the welding process.

[0050] In the structure shown in the figure, the inner wall 116 and the outer wall 120 are both cylindrical, and the inner side of the inner wall 116 retains the accommodation 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 serves as a bearing portion. Accordingly, it is convenient to install the evaporator to the working position.

[0051] The evaporator 100 of the structure shown above is supplied with refrigerant from the refrigerant inlet pipe 130 to the inlet end 103. Fig.11 As shown, when flowing through the refrigerant flow channel 102 , the refrigerant absorbs external heat 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 Fig.12 The cold food processing device 200 shown is equipped with a food storage cavity 201, which has a feeding port 202 and an outlet 203. The evaporator 100 of the present invention is also arranged in the food storage cavity 201 to cool the food in the food storage cavity. When working, the food in the food storage cavity contacts the evaporator and absorbs heat to be cooled and kept warm. The lid 204 can be opened to add food to the food storage cavity 101 through the feeding port 203, and the handle 205 can be operated to open the outlet 203 to output the food.

[0054] In view of the poor thermal conductivity of food and the fact that food in contact with the evaporator may cool and freeze after absorbing heat, a stirring device 206 such as a reamer assembly is disposed in the food storage cavity. When in operation, the stirring device stirs the food against the outer surface of the outer wall 120, which can prevent ice from forming on the outer surface of the outer wall and allow the food to cool evenly. Therefore, the stirring device 206 is arranged concentrically with the evaporator 100, that is, the rotation axis of the stirring device is in the same straight line as the axis of the evaporator. In addition, the entire evaporator is assembled and fixed to the food storage cavity through the outer flange 121 at the first end of the outer wall, and the stirring device is at least partially (such as Fig.12 The right end as shown is supported by the inner flange 122 for rotation, thereby maintaining a compact structure and a coordinated relationship between the stirring device and the evaporator.

[0055] The accommodating space 108 on the inner side of the inner wall 116 is provided with a partition bar and a heat preservation layer to prevent the food from contacting the inner wall. In this way, when working, the evaporator is immersed in the food to cool the food. Therefore, the food is preferably in the form of liquid, ice liquid mixture or snowflakes. The cold food processing device can be embodied in specific forms such as a snow melting machine and an ice shaver.

Claims

1. An evaporator having an annular closed space (101) and characterized in that: 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, characterized in that: The first flow channel wall (114) and the second flow channel wall (115) are spaced apart in the annular closed space (101); 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, characterized in that: 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, characterized in that: The isolation wall (113), the first flow channel wall (114) and the second flow channel wall (115) are evenly arranged in the circumferential direction of the annular closed space (101).

5. The evaporator according to claim 2, characterized in that: 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 a boundary of a first end of the annular closed space, and the second end wall (112) serves as a boundary of a 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 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 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, characterized in that: 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) form 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) retains the accommodation space (108); the first end of the outer wall (120) is configured with an outer flange edge (121), and the second end of the outer wall (120) is configured with an inner flange edge (122), and the inner flange edge (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), wherein: An 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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