Plate and tube evaporator

Abstract

The utility model discloses a plate and tube evaporator, which relates to the technical field of evaporators and comprises a heat exchange plate provided with a heat exchange tube. Each heat exchange pipe comprises a linear section part and a bent section part, and each bent section part is located between every two adjacent linear section parts to form a circuitous pipeline; a heat exchange tube wrapping aluminum sheet is arranged on the linear section part, the heat exchange tube wrapping aluminum sheet comprises an aluminum sheet wrapping part and an aluminum sheet welding part, the aluminum sheet wrapping part wraps the linear section part, and the heat exchange tube wrapping aluminum sheet is connected with the heat exchange plate through the aluminum sheet welding part; by adopting the design that the heat exchange tube wrapping aluminum sheet is arranged on the heat exchange tube, the heat exchange tube wrapping aluminum sheet can wrap the heat exchange tube through the aluminum sheet wrapping part so that the heat exchange tube is not prone to loosening, heat transfer is conducted through the heat exchange tube wrapping aluminum sheet, and the heat exchange efficiency between the heat exchange tube and the heat exchange plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a plate-tube evaporator. Background Art

[0002] In the plate-and-tube evaporator of a refrigerator, the heat exchange plate of the evaporator is in close contact with the heat exchange tube in which the refrigerant flows, so as to transfer the heat on the heat exchange plate to the refrigerant flowing in the heat exchange tube. At present, it is common to connect the heat exchange tube and the heat exchange plate with a thermal conductive adhesive. In practice, the heat exchange tube fixed in the above manner is easy to detach from the heat exchange plate, which not only affects the heat exchange effect, but also may directly cause the refrigerator to not cool or stop. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a plate-tube evaporator.

[0004] The technical solution adopted by the utility model to solve its technical problems is: to provide a plate-and-tube evaporator, including a heat exchange plate, on which a heat exchange tube is arranged, and the heat exchange tube has an input port and an output port; the heat exchange tube includes a straight section and a curved section, and the curved section is located between adjacent straight sections to form a circuitous pipeline; a heat exchange tube covering aluminum sheet is arranged on the straight section, and the heat exchange tube covering aluminum sheet includes an aluminum sheet covering portion and an aluminum sheet welding portion, the aluminum sheet covering portion covers the straight section, and the heat exchange tube covering aluminum sheet is connected to the heat exchange plate through the aluminum sheet welding portion.

[0005] According to the plate-and-tube evaporator provided by the utility model, by adopting the design of arranging a heat exchange tube covering aluminum sheet on the heat exchange tube, at least the following technical effects are achieved: the heat exchange tube covering aluminum sheet can not only partially cover the heat exchange tube by the aluminum sheet covering so that the heat exchange tube is not easy to get loose, but also utilize the heat exchange tube covering aluminum sheet to transfer heat, thereby improving the heat exchange efficiency between the heat exchange tube and the heat exchange plate.

[0006] As some preferred embodiments of the present utility model, heat-conducting glue is provided between the aluminum sheet covering portion and the straight section portion, and between the heat exchange tube and the heat exchange plate.

[0007] As some preferred embodiments of the utility model, welding ribs are provided on the heat exchange tube covering aluminum sheet, the welding ribs are located at the intersection between the aluminum sheet covering part and the aluminum sheet welding part, and both ends of the welding ribs are connected to the heat exchange plate.

[0008] As some preferred embodiments of the present utility model, a plane contact surface is provided on the straight line segment portion, and the plane contact surface of the straight line segment portion is in contact with the heat exchange plate.

[0009] As some preferred embodiments of the present utility model, welding embossing is provided on the welding portion of the aluminum sheet.

[0010] As some preferred embodiments of the present utility model, the heat exchange plate is provided with a backing adhesive.

[0011] As some preferred embodiments of the present utility model, the edge of the heat exchange plate is bent to form a handshake portion.

[0012] As some preferred embodiments of the present invention, air holes are provided on the heat exchange plate.

[0013] As some preferred embodiments of the present utility model, a temperature probe is provided on the heat exchange plate.

[0014] As some preferred embodiments of the utility model, a capillary tube is arranged at the input port of the heat exchange tube, and an aluminum foil film is arranged on the capillary tube.

[0015] The beneficial effects of the utility model are:

[0016] 1. The aluminum sheet covering the heat exchange tube wraps the heat exchange tube through the aluminum sheet covering part, and is welded to the heat exchange plate through the aluminum sheet welding part, which plays a role in reinforcing the heat exchange tube and makes it difficult for the heat exchange tube and the heat exchange plate to loosen;

[0017] 2. The aluminum sheet covering the heat exchange tube itself has the function of heat transfer, so the aluminum sheet covering the heat exchange tube can assist the heat transfer between the heat exchange tube and the heat exchange plate, and improve the heat exchange efficiency between the heat exchange tube and the heat exchange plate;

[0018] 3. The welding ribs are stuck at the intersection between the aluminum sheet covering part of the heat exchange tube and the aluminum sheet welding part, which not only further reinforces the heat exchange tube covering aluminum sheet, making it less likely for the heat exchange tube covering aluminum sheet to partially fall off, but also makes the aluminum sheet covering part of the heat exchange tube covering aluminum sheet cover the heat exchange tube more tightly, reduces the gap between the heat exchange tube and the heat exchange tube covering aluminum sheet, and further improves the heat exchange efficiency between the heat exchange tube and the heat exchange plate.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 This is the front view of the plate-and-tube evaporator of the utility model;

[0022] Figure 2It is a left view of the position of the heat exchange plate in the utility model;

[0023] Figure 3 It is a three-dimensional diagram of the positions of the heat exchange tubes and the aluminum sheets covering the heat exchange tubes in the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the position of the handgrip in the utility model.

[0025] Reference numerals:

[0026] Heat exchange plate 100, handshake part 110, middle plate 111, side plate 112, neutral position 113, air hole 120, temperature probe 130; heat exchange tube 200, input port 201, output port 202, straight section 210, flat contact surface 211, curved section 220, capillary 230, aluminum foil film 240; heat exchange tube coated aluminum sheet 300, aluminum sheet coated part 310, aluminum sheet welding part 320, welding embossing 321, welding rib 330; thermal conductive adhesive 400. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, the meaning of "a plurality" is more than two, and "greater than", "less than", "exceed" etc. are understood to exclude the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing 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.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Figure 1 This is a front view of an embodiment of the utility model, referring to Figure 1 One embodiment of the utility model provides a plate-and-tube evaporator as a heat transfer device, which is mainly suitable for use in refrigerators and the like.

[0032] Further, see Figure 1 , Figure 2 The plate-and-tube evaporator of the utility model comprises a heat exchange plate 100. A heat exchange tube 200 is arranged on the heat exchange plate 100, and the heat exchange tube 200 has an input port 201 and an output port 202, and the refrigerant flows in the heat exchange tube 200. The heat exchange plate 100 is in close contact with the phase, and the heat on the heat exchange plate 100 can be transferred to the refrigerant flowing in the heat exchange tube 200 to achieve heat exchange.

[0033] Further, refer to Figure 3 The heat exchange tube 200 includes a straight section 210 and a curved section 220. The curved section 220 is located between adjacent straight sections 210 to form a circuitous pipeline. In this way, when the area of ​​the heat exchange plate 100 is limited, the heat exchange tube 200 as long as possible is in contact with the heat exchange plate 100 to improve the heat exchange efficiency.

[0034] Furthermore, a heat exchange tube covering aluminum sheet 300 is provided on the straight section portion 210, and the heat exchange tube covering aluminum sheet 300 includes an aluminum sheet covering portion 310 and an aluminum sheet welding portion 320. The aluminum sheet covering portion 310 covers the straight section portion 210, and the heat exchange tube covering aluminum sheet 300 is connected to the heat exchange plate 100 through the aluminum sheet welding portion 320, that is, the heat exchange tube covering aluminum sheet 300 covers the heat exchange tube 200 through the aluminum sheet covering portion 310, and is welded to the heat exchange plate 100 through the aluminum sheet welding portion 320.

[0035] In actual work, refer to Figure 1 , Figure 3 The heat exchange tube covering aluminum sheet 300 can not only cover the heat exchange tube 200, so that the heat exchange tube 200 and the heat exchange plate 100 are not easy to loosen, but also improve the heat exchange efficiency between the heat exchange tube 200 and the heat exchange plate 100 by utilizing the heat transfer function of the heat exchange tube covering aluminum sheet 300 itself.

[0036] The heat exchange tube covering aluminum sheet 300 only covers the straight section 210 of the heat exchange tube 200, which can simplify the installation requirements of the heat exchange tube covering aluminum sheet 300 and facilitate the promotion and application of the technology.

[0037] Some embodiments, see Figure 3 A heat conductive adhesive 400 is provided between the aluminum sheet covering portion 310 and the straight section portion 210 and between the heat exchange tube 200 and the heat exchange plate 100 to further improve the heat exchange efficiency between the heat exchange tube 200 and the heat exchange plate 100.

[0038] In some embodiments, the cross section of the straight section 210 is elliptical, which is convenient for processing. At the same time, the heat exchange tube 200 of this shape is relatively more stable on the heat exchange plate 100.

[0039] In some embodiments, the heat exchange tube coating aluminum sheet 300 is provided with a welding rib 330, the welding rib 330 is located at the intersection between the aluminum sheet coating part 310 and the aluminum sheet welding part 320, and both ends of the welding rib 330 are connected to the heat exchange plate 100, that is, the welding rib 330 is connected to the heat exchange tube coating aluminum sheet 300 and the heat exchange plate 100 at the same time. The welding rib 330 not only reinforces the heat exchange tube coating aluminum sheet 300, so that the heat exchange tube coating aluminum sheet 300 is not easy to partially fall off, but also makes the aluminum sheet coating part 310 of the heat exchange tube coating aluminum sheet 300 more tightly cover the heat exchange tube 200, reducing the gap between the heat exchange tube 200 and the heat exchange tube coating aluminum sheet 300.

[0040] In some embodiments, a planar contact surface 211 is provided on the straight segment portion 210 , and the planar contact surface 211 of the straight segment portion 210 contacts the heat exchange plate 100 , further making the heat exchange tube 200 on the heat exchange plate 100 more stable and reliable.

[0041] In some embodiments, a welding embossing 321 is provided on the aluminum sheet welding portion 320 , so that the welding between the aluminum sheet welding portion 320 and the heat exchange plate 100 is tighter and not easy to loosen.

[0042] Some embodiments, see Figure 1 , Figure 2 The heat exchange plate 100 is provided with adhesive backing, so that the plate-and-tube evaporator of the utility model can be directly installed on the equipment through the adhesive backing, without the need for fixing and installing parts such as screws.

[0043] Some embodiments, see Figure 1 , Figure 4 The edge of the heat exchange plate 100 is bent to form a gripping portion 110, which is convenient for workers to hold the heat exchange plate 100 to take and place the plate-and-tube evaporator of the utility model, especially when the plate-and-tube evaporator of the utility model is tightly installed on the equipment.

[0044] In this embodiment, optionally, refer to Figure 4 The gripping part 110 includes a middle plate 111 at a middle position and a side plate 112 at a side position, and a neutral position 113 is formed between the middle plate 111 and the side plate 112. By extending a hand into the neutral position 113, the gripping part 110 can be grasped to disassemble and assemble the plate-tube evaporator of the utility model.

[0045] Some embodiments, see Figure 1The heat exchange plate 100 is provided with air holes 120 to prevent bubbles from appearing on the heat exchange plate 100 or warping at the four corners when the plate-and-tube evaporator of the present invention is pressed onto the equipment, thereby affecting the pasting effect on the heat exchange plate 100.

[0046] In some embodiments, a temperature probe 130 is disposed on the heat exchange plate 100 to test the temperature on the heat exchange plate 100 and further monitor the working condition of the plate-and-tube evaporator of the present invention.

[0047] In some embodiments, a capillary tube 230 is provided at the input port 201 of the heat exchange tube 200, and an aluminum foil film 240 is provided on the capillary tube 230. The capillary tube 230 is used to inject refrigerant into the heat exchange tube 200. The aluminum foil film 240 covers the capillary tube 230 and winds the capillary tube 230 and the heat exchange tube 200 together, which is convenient for arranging the capillary tube 230 and preventing the capillary tube 230 from being pulled out or torn off, and at the same time separates the capillary tube 230 from the heat exchange tube 200 to prevent the capillary tube 230 and the heat exchange tube 200 from being bonded together due to local corrosion.

[0048] In the description of this specification, the description with reference to the terms "some embodiments" or "it is conceivable that" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A plate-and-tube evaporator, comprising a heat exchange plate (100), wherein a heat exchange tube (200) is arranged on the heat exchange plate (100), wherein the heat exchange tube (200) has an input port (201) and an output port (202), and wherein: The heat exchange tube (200) comprises a straight section (210) and a curved section (220), wherein the curved section (220) is located between adjacent straight section (210) to form a circuitous pipeline; A heat exchange tube covering aluminum sheet (300) is arranged on the straight section portion (210), and the heat exchange tube covering aluminum sheet (300) comprises an aluminum sheet covering portion (310) and an aluminum sheet welding portion (320). The aluminum sheet covering portion (310) covers the straight section portion (210), and the heat exchange tube covering aluminum sheet (300) is connected to the heat exchange plate (100) via the aluminum sheet welding portion (320).

2. A plate-and-tube evaporator according to claim 1, characterized in that: Heat-conducting glue (400) is provided between the aluminum sheet covering portion (310) and the straight section portion (210), and between the heat exchange tube (200) and the heat exchange plate (100).

3. The plate-and-tube evaporator according to claim 1, characterized in that: The heat exchange tube covering aluminum sheet (300) is provided with a welding rib (330), the welding rib (330) is located at the intersection between the aluminum sheet covering part (310) and the aluminum sheet welding part (320), and both ends of the welding rib (330) are connected to the heat exchange plate (100).

4. The plate-and-tube evaporator according to claim 1, characterized in that: A planar contact surface (211) is provided on the straight segment portion (210), and the planar contact surface (211) of the straight segment portion (210) is in contact with the heat exchange plate (100).

5. The plate-and-tube evaporator according to claim 1, characterized in that: The aluminum sheet welding portion (320) is provided with welding embossing (321).

6. The plate-and-tube evaporator according to claim 1, characterized in that: The heat exchange plate (100) is provided with a backing adhesive.

7. The plate-and-tube evaporator according to claim 1, characterized in that: The edge of the heat exchange plate (100) is bent to form a handshake portion (110).

8. The plate-and-tube evaporator according to claim 1, characterized in that: The heat exchange plate (100) is provided with air holes (120).

9. The plate-and-tube evaporator according to claim 1, characterized in that: A temperature probe (130) is provided on the heat exchange plate (100).

10. The plate-and-tube evaporator according to claim 1, characterized in that: A capillary tube (230) is arranged at the input port (201) of the heat exchange tube (200), and an aluminum foil film (240) is arranged on the capillary tube (230).

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