High-efficiency evaporator

Abstract

The utility model belongs to the technical field of evaporators, and discloses a high-efficiency evaporator which comprises a shell, a heat exchanger and a heat exchanger, the heat exchanger comprises a shell and a plurality of heat exchange pieces, and is characterized in that the heat exchange pieces are of a porous structure and are tightly attached to the inner wall of the shell; the copper pipes are arranged on the heat exchange sheets and are used for transmitting a working medium; the capillary tube is arranged in the copper tube and is used as a throttling device; according to the utility model, a porous structure is adopted, so that the number of internal channels is increased, and the contact area with a working medium is greatly increased. By means of the design, the heat exchange effect is enhanced, even distribution of working media is promoted, and the phenomenon of local overheating is avoided. The aperture of each heat exchange sheet is set between 0.1 mm and 2 mm, so that enough fluid flowability can be ensured, and the heat exchange efficiency is not sacrificed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of evaporators, and in particular to a high-efficiency evaporator. Background Art

[0002] In a refrigeration system, the evaporator is a key component responsible for absorbing heat from the environment to achieve cooling. A traditional evaporator typically consists of a shell, heat exchange fins, and copper tubes. The working medium (such as refrigerant) flows through the copper tubes, where it comes into contact with the heat exchange fins and absorbs heat, causing a phase change (from liquid to gas), ultimately achieving the cooling effect.

[0003] However, traditional evaporators feature a single heat exchanger structure, typically in the form of flat plates or fins. This results in a limited contact area with the working medium and low heat transfer efficiency. Gaps may exist between the heat exchanger and the shell, causing uneven pressure distribution and impacting heat transfer performance. This can also cause localized stress concentrations, shortening the equipment's lifespan. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a high-efficiency evaporator, aiming to solve the problems in the background technology.

[0005] In order to achieve the above-mentioned object of the invention, the first aspect of the present invention provides a high-efficiency evaporator, comprising:

[0006] The shell is in the shape of a cylindrical tube;

[0007] A plurality of heat exchange fins, wherein the plurality of heat exchange fins are porous structures and the heat exchange fins are tightly fitted to the inner wall of the shell;

[0008] Copper tubes, arranged on the heat exchange fins, for transmitting working medium;

[0009] Capillary tube, installed inside the copper tube, acts as a throttling device.

[0010] Optionally, the porous structure of the heat exchange fin improves heat exchange efficiency by increasing the number of internal channels.

[0011] Optionally, a uniform pressure distribution is formed between the heat exchange fins and the shell, thereby enhancing the contact effect and heat conduction performance. Beneficial effects

[0012] 1. This utility model features a high-efficiency evaporator with a porous structure, increasing the number of internal channels and significantly increasing the contact area with the working medium. This design not only enhances heat transfer but also promotes uniform distribution of the working medium, avoiding localized overheating. The pore size of the heat exchanger fins is set between 0.1 mm and 2 mm, ensuring sufficient fluid flow without sacrificing heat transfer efficiency. The appropriate pore size helps maintain stable working medium flow, further improving heat transfer performance.

[0013] 2. This high-efficiency evaporator creates a uniform pressure distribution between the heat exchange fins and the shell, ensuring good contact between them and enhancing heat transfer. This design maintains stable heat transfer even with changes in working medium flow or temperature fluctuations, preventing damage caused by localized stress concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of a high-efficiency evaporator provided by an exemplary embodiment of the present disclosure;

[0015] Figure 2 This is a schematic diagram of the heat exchange fin structure of a high-efficiency evaporator provided by an exemplary embodiment of the present disclosure;

[0016] Figure 3 It is a schematic cross-sectional view of a heat exchange fin of a high-efficiency evaporator provided by an exemplary embodiment of the present disclosure.

[0017] Description of reference numerals:

[0018] 1. Shell; 2. Heat exchanger; 3. Copper tube; 4. Capillary tube.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections, direct connections, or indirect connections through an intermediate medium; they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0024] Reference Figure 1-Figure 3 An embodiment of the present invention provides an embodiment of a high-efficiency evaporator, comprising:

[0025] The shell 1 is cylindrical;

[0026] A plurality of heat exchange fins 2, wherein the plurality of heat exchange fins 2 are porous structures and the heat exchange fins 2 are tightly attached to the inner wall of the shell 1;

[0027] Copper tube 3, provided on the heat exchange plate 2, for transmitting the working medium;

[0028] Capillary tube 4, installed inside copper tube 3, serves as a throttling device. The porous structure of heat exchanger fin 2 increases the number of internal channels, improving heat exchange efficiency. This creates a uniform pressure distribution between heat exchanger fin 2 and housing 1, enhancing contact and heat transfer performance.

[0029] It should be noted that the shell 1 is in the shape of a cylindrical tube and serves as the outer shell of the entire evaporator. Its interior houses and protects other components. It not only provides structural support, but also participates in the heat exchange process. Multiple heat exchange fins 2 are tightly fitted on the inner wall of the shell 1. The heat exchange fins 2 are porous structures that can increase the contact area with the working medium, thereby improving the heat exchange efficiency. The distance and layout between each heat exchange fin 2 are optimized to ensure uniform pressure distribution to enhance the contact effect and heat conduction performance. Copper tubes 3 are installed on the heat exchange fins 2 for transmitting working media, such as refrigerant. Copper tubes 3 are chosen because copper has good thermal conductivity and can transfer heat quickly and efficiently.

[0030] Capillary tube 4, installed inside copper tube 3, acts as a throttling device, regulating the pressure by controlling the flow of the working medium. The porous structure of heat exchanger fin 2 significantly increases the number of internal channels, which helps improve heat transfer efficiency because more channels mean a larger surface area and a shorter heat path.

[0031] The contact design between the heat exchanger 2 and the shell 1 takes into account uniform pressure distribution, which not only avoids damage caused by localized stress concentration but also makes heat transfer between the heat exchanger 2 and the shell 1 more efficient. Uniform pressure distribution also helps maintain the stability of the heat exchanger 2 and prevents deformation caused by temperature changes.

[0032] In some embodiments, the material of the heat exchange plate 2 is selected from aluminum alloy or copper alloy.

[0033] It should be noted that the heat exchange fins 2 are made of aluminum alloy or copper alloy. Both materials have excellent thermal conductivity and corrosion resistance and are suitable for use as efficient heat exchange elements.

[0034] In some embodiments, the diameter of the capillary tube 4 is between 0.5 mm and 2 mm, and the length of the capillary tube 4 is between 30 cm and 100 cm.

[0035] It should be noted that the diameter of the capillary tube 4 is set between 0.5 mm and 2 mm, and the length is between 30 cm and 100 cm. The capillary tube 4 of this size can achieve an effective throttling effect while ensuring an appropriate flow rate, that is, reducing the pressure of the working medium, causing it to expand in the evaporator and absorb heat.

[0036] In some embodiments, the pore size of the heat exchange fins 2 ranges from 0.1 mm to 2 mm to ensure sufficient fluidity and heat exchange efficiency.

[0037] It should be noted that the pore size of the heat exchange fin 2 is set between 0.1 mm and 2 mm. This size can ensure sufficient fluid flow without sacrificing heat exchange efficiency. At the same time, this pore size range is also easy to process and manufacture, reducing production costs.

[0038] In specific applications, the high-temperature and high-pressure working medium from the condenser or compressor first enters the copper tube 3 of the evaporator through the pipeline. At this time, the working medium is in a liquid state or a gas-liquid mixed state.

[0039] After the working medium enters copper tube 3, it passes through capillary tube 4 installed inside the tube. Capillary tube 4 acts as a throttling device, reducing the working medium's pressure by reducing the cross-section of the passage, thereby causing the working medium to expand and partially vaporize. This process absorbs a large amount of heat, causing the working medium's temperature to drop sharply.

[0040] As the working medium expands and vaporizes, it comes into contact with heat exchange fins 2. Because heat exchange fins 2 are porous and fit tightly against the inner wall of housing 1, this design significantly increases the heat exchange area between the working medium and the external environment. Furthermore, the excellent thermal conductivity of heat exchange fins 2 (aluminum alloy or copper alloy) allows them to quickly transfer heat absorbed from the outside to the working medium, further vaporizing it.

[0041] The evaporator's shell 1 is typically designed to come into direct contact with the environment or object to be cooled, or indirectly through air or another medium. When these heat sources contact the evaporator, the heat is transferred through the shell 1 to the internal heat exchanger fins 2. Uniform pressure distribution is achieved between the fins 2 and the shell 1, ensuring good contact and enhancing heat transfer. Heat is transferred to the working medium through the fins 2, causing the working medium to heat up and undergo a phase change (from liquid to gas).

[0042] The porous structure of the heat exchanger 2 not only increases the heat exchange area, but also promotes the uniform distribution of the working medium within the heat exchanger 2, thereby improving the heat exchange efficiency. In addition, the porous structure helps maintain a stable flow of the working medium and prevents the occurrence of local overheating.

[0043] As heat is continuously transferred to the working medium, more liquid turns into gas, a process called vaporization. During vaporization, the working medium absorbs a large amount of latent heat, effectively lowering the temperature of the surrounding environment or object.

[0044] As the working medium vaporizes, the evaporator continuously absorbs heat from the surrounding environment, achieving cooling purposes. This process continues until the working medium is completely vaporized and leaves the evaporator through the pipeline and enters the next stage of the system (such as the compressor).

[0045] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-efficiency evaporator, comprising: The housing (1) is cylindrical; A plurality of heat exchange fins (2), characterized in that the plurality of heat exchange fins (2) are porous structures, and the heat exchange fins (2) are tightly fitted to the inner wall of the shell (1); A copper tube (3) is provided on the heat exchange plate (2) and is used to transmit the working medium; The capillary tube (4) is installed inside the copper tube (3) and serves as a throttling device.

2. A high-efficiency evaporator according to claim 1, characterized in that: The porous structure of the heat exchange plate (2) improves heat exchange efficiency by increasing the number of internal channels.

3. A high-efficiency evaporator according to claim 1, characterized in that: A uniform pressure distribution is formed between the heat exchange fins (2) and the shell (1).

Images