Ice making device with flexible ice making cavity

Abstract

The utility model relates to the technical field of ice-making equipment, in particular to an ice-making device with a flexible ice-making cavity, which comprises an upper die, a lower die and an evaporator. An upper cavity with an opening is formed in the upper die, and the inner surface of the upper cavity is coated with a first flexible layer. The upper die and the lower die are made of rigid materials. A lower cavity with an opening is formed in the lower die, and the inner surface of the lower cavity is coated with a second flexible layer. The upper mold and the lower mold are connected in a covering mode to form a closed ice making cavity, and the space defined by the upper cavity and the lower cavity is the ice making cavity. When the ice is frozen, the volume is increased due to the density change, so that the pressure of the cavity body of the ice making cavity is increased, the cavity body of the ice making cavity can be simultaneously increased due to the elastic deformation characteristic of the soft material, the pressure of the cavity body is eliminated, the ice making efficiency is higher, and the ice making is complete and does not burst. The evaporator is arranged on the peripheral side of the upper die and used for conveying refrigerants. The evaporator completely surrounds the ice-making cavity, so that the ice-making efficiency can be improved, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ice-making equipment, in particular to an ice-making device with a flexible ice-making cavity. Background Art

[0002] As a simple additive for cold drinks and sprinkles, ice machines are easy to make, have a beautiful crystal appearance, increase taste, and improve the quality of life, and are becoming more and more popular in the market.

[0003] The ice-making cavity of the traditional ice-making machine on the market is just a simple metal cavity structure, or the ice-making mold is made of flexible material. The ice cubes made by the metal cavity structure are easy to burst or uneven in shape, the ice cubes are not smooth, and the appearance is not beautiful, while the conventional all-silicone flexible mold has a slow ice-making effect. Utility Model Content

[0004] In order to solve the technical defects mentioned in the above background technology, the purpose of the utility model is to provide an ice-making device with a flexible ice-making chamber.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An ice-making device with a flexible ice-making chamber, comprising:

[0007] An upper mold, wherein an open upper cavity is provided inside the upper mold, and an inner surface of the upper cavity is covered with a first flexible layer;

[0008] The lower mold, the upper mold and the lower mold are both made of rigid material; the lower mold is provided with an open lower chamber inside, and the inner surface of the lower chamber is covered with a second flexible layer; the upper mold and the lower mold are covered and connected to form a closed ice-making chamber, and the space enclosed by the upper chamber and the lower chamber is the ice-making chamber;

[0009] An evaporator is arranged on the outer peripheral side of the upper mold and covers the ice-making cavity, and is used for conveying refrigerant.

[0010] By adopting the above technical solution, a first flexible layer is arranged in the upper chamber and a second flexible layer is arranged in the lower chamber. The area enclosed by the first flexible layer and the second flexible layer is the ice-making chamber. When ice forms, the volume increases due to the change in density, so that the pressure on the ice-making chamber increases. Due to the elastic deformation characteristics of the soft material, the ice-making chamber can be enlarged at the same time, eliminating the pressure on the chamber, and the ice made is more efficient and intact without bursting. The evaporator completely surrounds the ice-making chamber, which can speed up the ice-making efficiency and reduce energy consumption.

[0011] Furthermore, the ice-making device with a flexible ice-making chamber further comprises a shell and a heat-insulating layer. The upper mold is arranged inside the shell, and the heat-insulating layer is filled between the shell and the upper mold. The evaporator is arranged between the heat-insulating layer and the upper mold to improve the efficiency of refrigeration.

[0012] Furthermore, the upper mold includes an upper cavity, a limiting portion and a supporting portion. The upper cavity is provided with the upper chamber. The limiting portion is connected to one end of the upper cavity provided with the upper chamber, and the interior of the limiting portion is hollow and has openings at both ends. The limiting portion is sleeved on the outer periphery of one end of the lower mold provided with the lower chamber and is fixedly connected so that the upper chamber is sealed and covered with the lower chamber, which facilitates assembly and improves work efficiency. The supporting portion is provided on the outer periphery of one end of the limiting portion away from the upper cavity, and the outer shell, the heat insulation layer, and the evaporator are arranged on the supporting portion.

[0013] Furthermore, the lower mold includes a lower cavity, a sealing part and a sealing ring. The lower cavity is provided with the lower chamber, and the outer wall of the lower cavity is in close contact with the inner wall of the limiting part. The sealing part is provided at one end of the lower cavity away from the upper cavity, and a sealing ring is sleeved at one end of the lower cavity connected to the sealing part to improve the sealing of the ice-making cavity. The end surface of the sealing part protrudes from the lower cavity, and the side surface of the sealing part is in contact with the end of the limiting part for easy installation and removal.

[0014] Furthermore, the lower cavity is provided with an end surface area of ​​one end of the lower cavity that is smaller than the end surface area of ​​one end of the lower cavity connected to the sealing portion, and the inner side wall of the limiting portion is arranged relative to the outer side wall of the lower cavity, which is convenient for installation and improves bearing capacity.

[0015] Furthermore, the upper mold is provided with an overflow hole, which is connected to the upper chamber and is used to discharge excess water in the ice-making chamber. The lower mold is provided with a water inlet hole, which is connected to the lower chamber and is used to transport water into the ice-making chamber. The formation of water circulation is conducive to removing the gas in the ice-making chamber, improving the quality and aesthetics of ice making, and making the produced ice cubes transparent.

[0016] Furthermore, the first flexible layer includes a first soft body and a first sealing plug. The first soft body is provided with a first through hole relative to the overflow hole, and the outer peripheral side of the first soft body is provided on the inner side wall of the upper chamber. The first sealing plug is hollow inside, one end of the first sealing plug is located on the inner side of the first soft body, and the other end of the first sealing plug passes through the first through hole and the overflow hole in sequence and is fixed to the outer end of the overflow hole, thereby improving the sealing performance of the overflow hole and fixing the first soft body, thereby reducing the cost. The second flexible layer is provided with the same structure as the first flexible layer, thereby saving the cost.

[0017] Furthermore, a plurality of upper chambers are arranged inside the upper mold, each of the upper chambers is correspondingly provided with a layer of the first flexible layer, and each of the upper chambers corresponds to a group of the lower molds, thereby improving the efficiency of ice making.

[0018] Furthermore, the evaporator includes an evaporation tube and a guide channel. The outer side wall of the upper mold is provided with a spiral groove to form the guide channel, and both ends of the spiral groove are connected to the corresponding evaporation tube. The effective refrigeration area can be increased, the refrigeration is more uniform, the ice-making efficiency is effectively improved, the ice-making time is accelerated, and the work efficiency of the product is improved.

[0019] Furthermore, the evaporator includes an evaporation tube and a spiral tube, the spiral tube is arranged in a spiral shape, and the spiral tube is sleeved on the outer peripheral side of the upper mold and the lower mold. The interior of the spiral tube is hollow to form a guide channel, and both ends of the spiral tube are connected to the corresponding evaporation tube. It is easy to install and also improves the refrigerant transportation efficiency.

[0020] In summary, the beneficial effects of the utility model are:

[0021] The ice-making device with a flexible ice-making chamber of the utility model is provided with a first flexible layer in the upper chamber and a second flexible layer in the lower chamber. The area enclosed by the first flexible layer and the second flexible layer is the ice-making chamber. When ice forms, the volume increases due to density change, so that the cavity of the ice-making chamber is pressurized. Due to the elastic deformation characteristics of the soft material, the cavity of the ice-making chamber can be enlarged at the same time, eliminating the pressure on the cavity, and the ice made is more efficient and complete without bursting. The evaporator completely surrounds the ice-making chamber, which can speed up the ice-making efficiency and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an ice-making device with a flexible ice-making chamber of the utility model.

[0023] Figure 2 It is a partial cross-sectional structural schematic diagram of an ice-making device with a flexible ice-making chamber of the utility model.

[0024] Figure 3 It is a schematic cross-sectional structure diagram of an ice-making device with a flexible ice-making chamber of the utility model.

[0025] Figure 4 The utility model is a schematic diagram of the exploded structure of an ice-making device with a flexible ice-making chamber.

[0026] Figure 5 It is a cross-sectional schematic diagram of an ice-making device with a flexible ice-making chamber of the utility model.

[0027] Figure 6 The utility model is a cross-sectional schematic diagram of an ice-making device with a flexible ice-making chamber provided with a spiral tube structure.

[0028] Figure 7 The utility model is a schematic diagram of the exploded structure of the upper mold and the lower mold of the ice-making device with a flexible ice-making chamber.

[0029] Description of reference numerals in the figures:

[0030] 1. An ice-making device with a flexible ice-making chamber; 2. An outer shell; 3. An insulating layer; 4. An upper mold; 41. An upper chamber; 42. A limiting portion; 43. A supporting portion; 44. An overflow hole; 45. A first flexible layer; 451. A first soft body; 452. A first sealing plug; 4521. A first abutting portion; 4522. A connecting shaft; 4523. A second abutting portion; 46. An upper chamber; 47. An upper chamber sleeve; 5. A lower mold; 51. A lower chamber; 52. A sealing portion; 53. A sealing ring; 54. An inlet hole; 55. A second flexible layer; 551. A second soft body; 552. A second sealing plug; 553. An enlargement ring; 56. A lower chamber; 57. A lower chamber sleeve; 6. An evaporator; 61. An evaporating tube; 62. A flow guide channel; 63. A spiral tube. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0032] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0033] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] The following is combined with Figure 1-7 , the embodiments of the utility model are further described in detail.

[0035] An ice-making device 1 having a flexible ice-making chamber, such as Figure 1 , Figure 2 As shown, it includes a shell 2, a heat insulating layer 3, an upper mold 4, a lower mold 5 and an evaporator 6. The upper mold 4 is arranged inside the shell 2, and the heat insulating layer 3 is filled between the shell 2 and the upper mold 4. An evaporator 6 is arranged between the heat insulating layer 3 and the upper mold 4, and the evaporator 6 is coated in the ice making cavity. The evaporator 6 is used to transport refrigerant to improve the efficiency of refrigeration. Among them, the heat insulating layer 3 is filled with a heat insulating agent.

[0036] An open upper chamber 46 is provided inside the upper mold 4, and the inner surface of the upper chamber 46 is coated with a first flexible layer 45. The upper mold 4 and the lower mold 5 are both made of rigid material. The rigid material is a high thermal conductivity material. An open lower chamber 56 is provided inside the lower mold 5, and the inner surface of the lower chamber 56 is coated with a second flexible layer 55. The upper mold 4 and the lower mold 5 are covered and connected to form a closed ice-making chamber. Specifically, the space enclosed by the upper chamber 46 and the lower chamber 56 is the ice-making chamber. The ice-making chamber can be set to a spherical shape, or it can be set to other shapes according to user needs, which is not limited here.

[0037] In this embodiment, please refer to Figure 3 , Figure 4 , Figure 5The upper mold 4 includes an upper cavity 41, a limiting portion 42 and a supporting portion 43. The upper cavity 41 is provided with an upper chamber 46. One end of the upper cavity 41 provided with the upper chamber 46 is connected to the limiting portion 42, and the interior of the limiting portion 42 is hollow and has openings at both ends. The limiting portion 42 is sleeved on the outer periphery of one end of the lower mold 5 provided with the lower chamber 56 and is fixedly connected so that the upper chamber 46 and the lower chamber 56 are sealed and connected, which is convenient for assembly and improves work efficiency. The supporting portion 43 is provided on the outer periphery of the limiting portion 42 away from the end of the upper cavity 41, and the outer shell 2, the heat insulation layer 3, and the evaporator 6 are arranged on the supporting portion 43.

[0038] The lower mold 5 includes a lower cavity 51, a sealing portion 52 and a sealing ring 53. A lower chamber 56 is provided in the lower cavity 51, and the outer wall of the lower cavity 51 is in close contact with the inner wall of the limiting portion 42. The sealing portion 52 is provided at one end of the lower cavity 51 away from the upper cavity 41, and a sealing ring 53 is sleeved at one end of the lower cavity 51 connected to the sealing portion 52 to improve the sealing of the ice making chamber. The end surface of the sealing portion 52 protrudes from the lower cavity 51, and the side surface of the sealing portion 52 is in contact with the end of the limiting portion 42 for easy installation and removal.

[0039] The end surface area of ​​one end of the lower cavity 51 provided with the lower chamber 56 is smaller than the end surface area of ​​the end connected to the sealing portion 52 of the lower cavity 51. The inner wall of the limiting portion 42 is arranged relative to the outer wall of the lower cavity 51, which is convenient for installation and improves the bearing capacity.

[0040] A plurality of upper chambers 46 are arranged inside the upper mold 4, each upper chamber 46 is correspondingly provided with a first flexible layer 45, and each upper chamber 46 corresponds to a group of lower molds 5, thereby improving the efficiency of ice making.

[0041] The upper mold 4 is provided with an overflow hole 44, which is connected to the upper chamber 46 and is used to discharge excess water in the ice-making chamber. The lower mold 5 is provided with a water inlet hole 54, which is connected to the lower chamber 56 and is used to transport water into the ice-making chamber. The formation of water circulation is conducive to removing the gas in the ice-making chamber, improving the quality and aesthetics of ice making, and making the produced ice cubes transparent.

[0042] Please refer to Figure 6 The evaporator 6 includes an evaporation tube 61 and a guide channel 62. The outer wall of the upper mold 4 is provided with a spiral groove to form a guide channel 62, and both ends of the spiral groove are connected to the corresponding evaporation tube 61. It can increase the effective area of ​​refrigeration, make the refrigeration more uniform, and effectively improve the ice-making efficiency, speed up the ice-making forming time, and improve the work efficiency of the product. Specifically, the spiral groove can be provided on the outer peripheral side of the upper cavity 41 and the limit portion 42. Among them, the structure of the spiral groove is not drawn in the figure.

[0043] Alternatively, the guide channel 62 may be provided in the form of a spiral tube 63. The spiral tube 63 is arranged in a spiral shape, and the spiral tube 63 is sleeved on the outer peripheral side of the upper mold 4 and the lower mold 5. The interior of the spiral tube 63 is hollow to form the guide channel 62, and both ends of the spiral tube 63 are connected to the corresponding evaporation tube 61. The installation is convenient and the refrigerant delivery efficiency is improved. The spiral tube 63 is coated on the outer peripheral side of the ice making chamber.

[0044] In this embodiment, please refer to Figure 4 , Figure 5 The first flexible layer 45 includes a first soft body 451 and a first sealing plug 452. The first soft body 451 is provided with a first through hole at a position relative to the overflow hole 44, and the outer peripheral side of the first soft body 451 is provided on the inner side wall of the upper chamber 46. The first sealing plug 452 is hollow inside, one end of the first sealing plug 452 is located on the inner side of the first soft body 451, and the other end of the first sealing plug 452 passes through the first through hole and the overflow hole 44 in sequence and is fixed to the outer end of the overflow hole 44, thereby improving the sealing performance of the overflow hole 44 and fixing the first soft body 451, thereby reducing the cost.

[0045] Please refer to Figure 7 The first sealing plug 452 includes a first abutting portion 4521, a connecting shaft 4522 and a second abutting portion 4523. The first abutting portion 4521 is arranged on the inner surface of the first flexible layer 45, and one end of the connecting shaft 4522 passes through the first through hole and is fixedly connected to the first abutting portion 4521. The second abutting portion 4523 is abutted and connected with an end of the overflow hole 44 away from the first soft body 451, and the other end of the connecting shaft 4522 passes through the overflow hole 44 and is fixedly connected to the second abutting portion 4523. The connecting shaft 4522 is hollow inside to connect the upper chamber 46 and the outside of the overflow hole 44. The first abutting portion 4521 and the second abutting portion 4523 can both be set as a circular structure, and the area of ​​the first abutting portion 4521 is larger than the area of ​​the second abutting portion 4523, which can better fix the first soft body 451 and improve the sealing performance.

[0046] The second flexible layer 55 has the same structure as the first flexible layer 45, which saves costs. The second flexible layer 55 includes a second soft body 551 and a second sealing plug 552. The second soft body 551 has the same structure as the first soft body 451, and the second sealing plug 552 has the same structure as the first sealing plug 452. One end of the second soft body 551 connected to the first soft body 451 is provided with an outwardly protruding expansion ring 553, which can improve the sealing of the connection between the first soft body 451 and the second soft body 551, and prevent water from flowing out of the ice making chamber.

[0047] Please refer to Figure 3 , Figure 4In order to improve the efficiency of overflow and water inlet, an upper cavity sleeve 47 is provided at the overflow hole 44, and a lower cavity sleeve 57 is provided at the water inlet hole 54. One end of the upper cavity sleeve 47 is located at the outer end of the overflow hole 44, and the other end of the upper cavity sleeve 47 passes through the insulation layer 3 and the shell 2 to communicate with the outside. One end of the lower cavity sleeve 57 is connected to the outer end of the water inlet hole 54, and the other end of the lower cavity sleeve 57 passes through the lower cavity 51 and the sealing part 52 to be connected to the external water inlet pipe.

[0048] A first flexible layer 45 is arranged in the upper chamber 46, and a second flexible layer 55 is arranged in the lower chamber 56. The area enclosed by the first flexible layer 45 and the second flexible layer 55 is an ice-making chamber. During the ice-making process, water enters through the water inlet hole 54 below the lower chamber 51, and water flows out from the overflow hole 44 above the upper chamber 41 to form a water flow of the ice-making chamber water cycle, which can discharge the air in the water to make ice cubes with high transparency. When freezing, the volume increases due to the change in density, so that the cavity of the ice-making chamber is pressurized. Due to the elastic deformation characteristics of the soft material, the cavity of the ice-making chamber can be enlarged at the same time, eliminating the pressure on the cavity, and the ice made is more efficient and complete without bursting. The evaporator 6 completely surrounds the ice-making chamber, which can speed up the ice-making efficiency and reduce energy consumption. The water inlet hole 54 and the overflow hole 44 are relatively small, so it is easier to fall off and break after forming. The ice cubes are highly transparent, smooth and rounded on the surface, and beautiful in appearance.

[0049] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An ice-making device (1) having a flexible ice-making chamber, characterized in that: include: An upper mold (4), wherein an open upper cavity (46) is provided inside the upper mold (4), and the inner surface of the upper cavity (46) is coated with a first flexible layer (45); The lower mold (5), the upper mold (4) and the lower mold (5) are both made of rigid material; an open lower chamber (56) is provided inside the lower mold (5), and the inner surface of the lower chamber (56) is covered with a second flexible layer (55); the upper mold (4) and the lower mold (5) are covered and connected to form a closed ice-making chamber, and the space enclosed by the upper chamber (46) and the lower chamber (56) is the ice-making chamber; An evaporator (6) is arranged on the outer peripheral side of the upper mold (4) and covers the ice-making cavity, and is used to transport refrigerant.

2. The ice-making device (1) with a flexible ice-making chamber according to claim 1, characterized in that: The ice-making device (1) with a flexible ice-making chamber further comprises an outer shell (2) and a heat-insulating layer (3); the upper mold (4) is arranged inside the outer shell (2); the heat-insulating layer (3) is filled between the outer shell (2) and the upper mold (4); and the evaporator (6) is arranged between the heat-insulating layer (3) and the upper mold (4).

3. The ice-making device (1) with a flexible ice-making chamber according to claim 2, characterized in that: The upper mold (4) comprises an upper cavity (41), a limiting portion (42) and a supporting portion (43), wherein the upper cavity (41) is provided with the upper cavity (46); one end of the upper cavity (41) provided with the upper cavity (46) is connected to the limiting portion (42), the interior of the limiting portion (42) is hollow and both ends are open; the limiting portion (42) is sleeved on the outer periphery of one end of the lower mold (5) provided with the lower cavity (56) and is fixedly connected so that the upper cavity (46) and the lower cavity (56) are sealed and covered; the supporting portion (43) is provided on the outer periphery of one end of the limiting portion (42) away from the upper cavity (41), and the outer shell (2), the heat insulation layer (3) and the evaporator (6) are arranged on the supporting portion (43).

4. The ice-making device (1) with a flexible ice-making chamber according to claim 3, characterized in that: The lower mold (5) comprises a lower cavity (51), a sealing portion (52) and a sealing ring (53); the lower cavity (51) is provided with the lower chamber (56), and the outer wall of the lower cavity (51) is in close contact with the inner wall of the limiting portion (42); the sealing portion (52) is provided at one end of the lower cavity (51) away from the upper cavity (41), and the sealing ring (53) is sleeved at one end of the lower cavity (51) connected to the sealing portion (52); the end face of the sealing portion (52) protrudes from the lower cavity (51), and the side face of the sealing portion (52) is in contact with the end of the limiting portion (42).

5. The ice-making device (1) with a flexible ice-making chamber according to claim 4, characterized in that: The end surface area of ​​one end of the lower cavity (51) provided with the lower chamber (56) is smaller than the end surface area of ​​one end of the lower cavity (51) connected to the sealing portion (52), and the inner side wall of the limiting portion (42) is arranged relative to the outer side wall of the lower cavity (51).

6. The ice-making device (1) with a flexible ice-making chamber according to claim 1, characterized in that: The upper mold (4) is provided with an overflow hole (44), the overflow hole (44) is communicated with the upper chamber (46) and is used to discharge excess water in the ice-making chamber; the lower mold (5) is provided with a water inlet hole (54), the water inlet hole (54) is communicated with the lower chamber (56) and is used to transport water into the ice-making chamber.

7. The ice-making device (1) with a flexible ice-making chamber according to claim 6, characterized in that: The first flexible layer (45) comprises a first soft body (451) and a first sealing plug (452); the first soft body (451) is provided with a first through hole at a position relative to the overflow hole (44), and the outer peripheral side of the first soft body (451) is arranged on the inner wall of the upper chamber (46); the first sealing plug (452) is hollow inside, one end of the first sealing plug (452) is located on the inner side of the first soft body (451), and the other end of the first sealing plug (452) passes through the first through hole and the overflow hole (44) in sequence and is fixed to the outer end of the overflow hole (44); the second flexible layer (55) is arranged with the same structure as the first flexible layer (45).

8. The ice-making device (1) with a flexible ice-making chamber according to claim 1, characterized in that: A plurality of upper chambers (46) are arranged inside the upper mold (4), each of the upper chambers (46) is correspondingly provided with a layer of the first flexible layer (45), and each of the upper chambers (46) corresponds to a group of the lower molds (5).

9. The ice-making device (1) with a flexible ice-making chamber according to claim 1, characterized in that: The evaporator (6) comprises an evaporation tube (61) and a guide channel (62); the outer side wall of the upper mold (4) is provided with a spiral groove to form the guide channel (62), and both ends of the spiral groove are connected to the corresponding evaporation tube (61).

10. The ice-making device (1) with a flexible ice-making chamber according to claim 1, characterized in that: The evaporator (6) comprises an evaporation tube (61) and a spiral tube (63); the spiral tube (63) is arranged in a spiral shape; the spiral tube (63) is sleeved on the outer circumference of the upper mold (4) and the lower mold (5); the interior of the spiral tube (63) is hollow to form a guide channel (62); and both ends of the spiral tube (63) are connected to the corresponding evaporation tube (61).

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