Evaporator

Abstract

The utility model relates to the field of evaporators, and provides an evaporator. The evaporator comprises a flow channel which is spiral; the fluid inlet is formed in the first end of the flow channel, and the fluid inlet is formed close to the center of the spiral flow channel; the fluid outlet is formed in the second end of the flow channel, the fluid outlet is formed in the position close to the edge of the spiral flow channel, and the fluid outlet and the fluid inlet are in fluid communication through the flow channel. The evaporator can improve the heat exchange efficiency; due to the arrangement of the spiral flow channel, centrifugal force can be generated when the fluid flows, and the phase with high density in the two-phase fluid is separated from the phase with low density due to the fact that the centrifugal force is large. After the low-density fluid is not blocked by the high-density fluid, the flow resistance of the low-density fluid is reduced, so that the overall flow resistance is reduced; the phenomena of non-uniform distribution and local overheating of the fluid in the flow channel are avoided, and the stability and the reliability of the evaporator are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to evaporator field provides an evaporator. BACKGROUND

[0002] The existing refrigeration machine evaporator technology mainly concentrates in filling wire screen type, slit type flow channel type and sintering type three kinds of types. Filling wire screen type evaporator makes things simple, but the heat exchange loss brought by the gap and the pressure drop problem brought by the filling amount limit its performance. Although the slit type flow channel evaporator is higher in heat exchange efficiency, but the difficulty in manufacture, the influence of flow channel wall thickness and the defects such as easy to produce blockage also make it have limitations. The sintering type evaporator has high heat exchange area inside, but due to the difficulty in parameter control in the sintering process and the too large fluid resistance, its heat exchange efficiency stability is poor.

[0003] The main problems faced by these existing evaporators include: high production cost, unstable heat exchange efficiency, large fluid resistance, unable to handle two-phase flow. Filling wire screen and slit type flow channel type evaporator are insufficient in heat exchange efficiency, and the sintering type evaporator is high in heat exchange efficiency, but it is difficult to guarantee stability, and the fluid resistance is also high. For the refrigeration machine needing low resistance backflow, the application range of the filling wire screen type evaporator is limited. SUMMARY

[0004] The utility model embodiment provides an evaporator to solve the defect of unable to realize phase separation in relevant technology.

[0005] The utility model embodiment provides an evaporator, comprising:

[0006] Flow channel, the flow channel is helical;

[0007] Fluid inlet, formed in the first end of the flow channel, the fluid inlet is formed in the center close to the helical flow channel;

[0008] Fluid outlet, formed in the second end of the flow channel, the fluid outlet is formed in the edge close to the helical flow channel, and the fluid outlet and the fluid inlet are in fluid communication through the flow channel.

[0009] According to an embodiment of the utility model, the cross-sectional area of the flow channel is equal in the direction from the fluid inlet to the fluid outlet.

[0010] According to an embodiment of the utility model, the cross-sectional area of the flow channel gradually increases in the direction from the fluid inlet to the fluid outlet.

[0011] According to an embodiment of the utility model, the evaporator comprises an evaporator body, a helical groove is formed in the evaporator body, and the groove forms the flow channel.

[0012] According to one embodiment of the present invention, the evaporator body is formed using 3D printing technology.

[0013] According to one embodiment of the present invention, the evaporator includes a base body with a spiral groove on the base body, and a copper tube is disposed in the groove, the copper tube forming the flow channel.

[0014] According to one embodiment of the present invention, the copper tube includes at least one of red copper tube and oxygen-free copper tube.

[0015] According to one embodiment of the present invention, the copper tube is welded to the groove.

[0016] According to one embodiment of the present invention, the outer wall of the flow channel is provided with a heat exchange structure.

[0017] According to one embodiment of the present invention, the inner wall of the flow channel has a smooth transition.

[0018] The evaporator provided in this embodiment of the invention, through its spiral flow channel design, increases the contact time and area between the fluid and the heat exchange surface of the evaporator, thereby significantly improving heat exchange efficiency. This helps the evaporator reach the required temperature or evaporation rate in a shorter time, improving the overall system performance. Furthermore, due to the spiral flow channel, the fluid generates centrifugal force during flow. The denser phase in the two-phase fluid experiences greater centrifugal force, thus separating from the less dense phase. With the less dense fluid no longer obstructed by the more dense fluid, its flow resistance decreases, thereby reducing the overall flow resistance. The design of the fluid inlet and outlet positions allows the fluid to flow more uniformly and stably within the flow channel. This avoids uneven distribution and localized overheating of the fluid within the flow channel, improving the stability and reliability of the evaporator. According to relevant heat transfer theories, the centrifugal force experienced by the fluid within the spiral flow channel enhances the heat exchange efficiency between the fluid and the wall. Additionally, the more dense fluid is a key component for extracting cold energy. The centrifugal force generated when the fluid enters the spiral flow channel causes the denser phase inside the fluid to be thrown towards the flow channel wall, thereby enhancing the heat exchange efficiency with the wall. The evaporator of this invention features a compact and rationally designed structure, enabling it to adapt to various working environments and fluid conditions. This allows the evaporator to perform excellently in a wider range of applications, improving system flexibility and adaptability. Through a unique spiral flow channel design and a rational arrangement of fluid inlet and outlet positions, the evaporator of this invention achieves improved heat exchange efficiency, optimized fluid distribution, and enhanced system adaptability. These technical advantages make the evaporator of this invention promising for broad applications in refrigeration, air conditioning, and chemical industries. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic side view of an evaporator provided by this utility model.

[0021] Figure 2 yes Figure 1 A schematic cross-sectional view along the AA direction.

[0022] Figure 3 This is a schematic side view of another evaporator provided by this utility model.

[0023] Figure 4 yes Figure 3 A schematic cross-sectional view along the BB direction.

[0024] Figure 5 This is a schematic side view of another evaporator provided by this utility model.

[0025] Figure label:

[0026] 100. Flow channel; 102. Fluid inlet; 104. Fluid outlet; 106. Evaporator body; 108. Groove; 110. Base; 112. Copper pipe. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] like Figures 1 to 5 As shown, this embodiment of the present invention provides an evaporator, comprising:

[0029] Flow channel 100, flow channel 100 is spiral in shape;

[0030] Fluid inlet 102 is formed at the first end of flow channel 100, and fluid inlet 102 is formed near the center of spiral flow channel 100;

[0031] A fluid outlet 104 is formed at the second end of the flow channel 100. The fluid outlet 104 is formed near the edge of the spiral flow channel 100, and the fluid outlet 104 and the fluid inlet 102 are in fluid communication through the flow channel 100.

[0032] The evaporator provided in this embodiment of the invention, through the design of the spiral flow channel 100, increases the contact time and contact area between the fluid and the heat exchange surface of the evaporator, thereby significantly improving the heat exchange efficiency. This helps the evaporator reach the required temperature or evaporation rate in a shorter time, improving the overall system performance. Furthermore, due to the spiral flow channel 100, the fluid generates centrifugal force during flow. The denser phase in the two-phase fluid experiences greater centrifugal force, thus separating from the less dense phase. With the less dense fluid no longer obstructed by the more dense fluid, its flow resistance decreases, thereby reducing the overall flow resistance. The design of the fluid inlet 102 and outlet positions allows the fluid to flow more uniformly and stably within the flow channel 100. This avoids uneven distribution and localized overheating of the fluid within the flow channel 100, improving the stability and reliability of the evaporator. According to relevant heat transfer theories, the centrifugal force experienced by the fluid within the spiral flow channel 100 enhances the heat exchange efficiency between the fluid and the wall. Additionally, the more dense fluid is a key component for extracting cold energy. The centrifugal force generated when the fluid enters the spiral flow channel 100... The denser phase inside the fluid is thrown towards the wall of the flow channel 100, thereby enhancing the heat exchange efficiency with the wall. The evaporator of this invention has a compact structure and reasonable design, capable of adapting to various working environments and fluid conditions. This allows the evaporator to perform excellently in a wider range of applications, improving the system's flexibility and adaptability. Through its unique spiral flow channel 100 design and reasonable arrangement of the fluid inlet 102 and outlet positions, the evaporator of this invention achieves improved heat exchange efficiency, optimized fluid distribution, and enhanced system adaptability. These technical effects make the evaporator of this invention widely applicable in refrigeration, air conditioning, chemical, and other fields.

[0033] Please continue reading Figures 1 to 5 The present invention aims to provide an optimized evaporator structure, the core of which lies in its unique flow channel 100 design.

[0034] The flow channel 100 is designed in a spiral shape. This design helps to increase the flow path length of the fluid within the evaporator, thereby increasing the contact time and contact area between the fluid and the heat exchange surface of the evaporator, and thus enhancing the heat exchange efficiency. The spiral flow channel 100 also guides the fluid to flow in a more uniform and stable manner, avoiding uneven distribution of the fluid and localized overheating within the flow channel 100.

[0035] The fluid inlet 102 is located at the first end of the flow channel 100 and close to the center of the spiral flow channel 100. This design allows the fluid to smoothly enter the spiral flow channel 100 and gradually diffuse outward within the flow channel 100, thereby ensuring a uniform distribution of the fluid within the flow channel 100.

[0036] The fluid outlet 104 is located at the second end of the flow channel 100, near the edge of the spiral flow channel 100. After passing through the spiral flow channel 100, the fluid flows out from the fluid outlet 104 at the edge. This design not only facilitates sufficient heat exchange within the flow channel 100, but also ensures that the fluid has reached the required temperature or state when it exits the evaporator.

[0037] According to one embodiment of the present invention, the cross-sectional area of ​​the flow channel 100 is equal in the direction from the fluid inlet 102 to the fluid outlet 104.

[0038] In one embodiment of this invention, the design of the evaporator flow channel 100 has been further optimized. Specifically, the cross-sectional area of ​​the flow channel 100 remains constant from the fluid inlet 102 to the fluid outlet 104. This means that the width (or diameter) of the flow channel 100 is consistent throughout the entire spiral flow channel 100, whether it is the inlet portion near the center or the outlet portion near the edge.

[0039] This design helps ensure a more uniform and stable flow of fluid within the flow channel 100. Because the cross-sectional area of ​​the flow channel 100 is uniform, the fluid does not encounter sudden changes in cross-section during flow, thus avoiding fluid pressure fluctuations and velocity changes caused by changes in cross-section. This helps reduce turbulence and eddies within the flow channel 100, improving fluid flow efficiency and heat exchange efficiency.

[0040] Because the cross-sectional area of ​​the flow channels 100 is uniform, the fluid flow within them is more uniform. This helps reduce localized overheating and undercooling within the flow channels 100, improving the overall performance of the evaporator. Uniform fluid flow also contributes to improved heat exchange efficiency. When the fluid passes through the flow channels 100 at a stable speed and in a uniform manner, it makes more thorough contact with the evaporator's heat exchange surfaces, resulting in higher heat exchange efficiency. The more uniform and stable fluid flow within the flow channels 100 reduces energy loss due to fluid turbulence and eddies. This helps reduce evaporator energy consumption and improve the overall energy efficiency of the system. Uniform fluid flow and a stable heat exchange process help reduce wear and corrosion within the evaporator, thereby improving its reliability and durability.

[0041] According to one embodiment of the present invention, the cross-sectional area of ​​the flow channel 100 gradually increases from the fluid inlet 102 to the fluid outlet 104.

[0042] In one embodiment of this invention, considering that the fluid absorbs more heat as it flows through the evaporator and gradually expands, the flow channel 100 of the evaporator is designed with a cross-sectional area that gradually increases from the fluid inlet 102 to the fluid outlet 104. This design means that when the fluid enters from the fluid inlet 102 near the center of the spiral flow channel 100, the cross-sectional area of ​​the flow channel 100 is relatively small, while as the fluid flows towards the fluid outlet 104 near the edge of the flow channel 100, the cross-sectional area of ​​the flow channel 100 gradually increases.

[0043] This design, based on fluid mechanics principles, aims to optimize the flow state of the fluid within the flow channel 100 and improve heat exchange efficiency. Specifically, the gradual increase in the cross-sectional area of ​​the flow channel 100 helps reduce fluid resistance during flow, allowing the fluid to pass through the flow channel 100 more smoothly. Simultaneously, the gradually increasing cross-sectional area of ​​the flow channel 100 can accommodate more fluid, thereby increasing the contact area between the fluid and the evaporator heat exchange surface while maintaining a relatively stable fluid velocity, thus improving heat exchange efficiency.

[0044] The gradually increasing cross-sectional area of ​​the flow channel 100 helps reduce fluid resistance during flow, allowing the fluid to pass through the flow channel 100 more smoothly. This helps reduce energy consumption and improve the overall energy efficiency of the system. The gradually increasing cross-sectional area of ​​the flow channel 100 can accommodate more fluid, increasing the contact area between the fluid and the heat exchange surface of the evaporator. At the same time, the stable fluid flow rate also helps improve heat exchange efficiency, enabling the evaporator to reach the required temperature or evaporation rate in a shorter time. The optimized design of the flow channel 100 helps reduce turbulence and eddy currents within the flow channel 100, reducing fluid scouring and wear on the evaporator's interior. This helps improve the stability and reliability of the evaporator and extend its service life. Because the evaporator of this invention has an optimized flow channel 100 design and high heat exchange efficiency, it can adapt to a variety of different working environments and fluid conditions. This makes the evaporator have a wider range of application prospects in refrigeration, air conditioning, chemical and other fields.

[0045] According to one embodiment of the present invention, the evaporator includes an evaporator body 106, and a spiral groove 108 is formed in the evaporator body 106, the groove 108 forming a flow channel 100.

[0046] In one embodiment of this invention, the evaporator includes an evaporator body 106, within which spiral grooves 108 are carefully designed to form flow channels 100 for fluid flow. This design combines structural innovation with functional efficiency, aiming to provide a high-performance evaporator.

[0047] The material and structure of the evaporator body 106 need to be selected according to the actual application scenario to ensure that it can withstand the pressure and temperature fluctuations during operation. The design of the spiral groove 108 fully considers the fluid flow characteristics and heat exchange efficiency. The spiral shape of the groove 108 not only extends the fluid flow path and increases the contact time and area between the fluid and the inner wall of the evaporator body 106, thereby improving heat exchange efficiency; at the same time, this design also helps to guide the fluid to flow in a more uniform and stable manner, avoiding uneven distribution of the fluid and local overheating within the flow channel 100.

[0048] In addition, parameters such as the depth, width, and spacing of the spiral grooves 108 also need to be precisely calculated and optimized to ensure that the fluid can maintain an appropriate flow rate and pressure drop during the flow process, thereby further improving the performance of the evaporator.

[0049] The spiral groove 108 design increases the contact time and area between the fluid and the inner wall of the evaporator body 106, thereby significantly improving heat exchange efficiency. This allows the evaporator to reach the required temperature or evaporation rate in a shorter time, improving the overall system performance. The spiral groove 108 guides the fluid to flow in a more uniform and stable manner, avoiding uneven distribution and localized overheating within the flow channel 100. This helps reduce energy consumption and extend the evaporator's service life. The evaporator body 106, through its carefully designed structure, can withstand pressure and temperature fluctuations during operation. Simultaneously, the addition of the spiral groove 108 does not weaken the evaporator's structural strength; rather, through reasonable layout and parameter optimization, the evaporator maintains high performance while also possessing good stability and durability. Because the evaporator of this invention has high heat exchange efficiency and optimized fluid flow characteristics, it can adapt to various working environments and fluid conditions. This makes the evaporator widely applicable in refrigeration, air conditioning, chemical, and other fields.

[0050] According to one embodiment of the present invention, the evaporator body 106 is formed using 3D printing technology.

[0051] According to one embodiment of this utility model, the evaporator body 106 is manufactured using advanced 3D printing technology. The core of this technical solution lies in utilizing the high flexibility and precision of 3D printing technology to directly build up materials layer by layer according to the computer-aided design (CAD) model, ultimately constructing a complex and precise evaporator body structure.

[0052] In the specific implementation process, firstly, a three-dimensional model of the evaporator body 106 is designed using professional CAD software. This model fully considers factors such as the functional requirements, fluid dynamics characteristics, and material properties of the evaporator. Next, this three-dimensional model is imported into a 3D printer, a suitable printing material (such as stainless steel, titanium alloy, etc., depending on the specific application scenario) is selected, and printing parameters (such as layer thickness, printing speed, temperature, etc.) are set. Subsequently, the 3D printer, based on the model data, melts or solidifies the printing material using methods such as lasers or electron beams, building up layer by layer until the entire evaporator body is manufactured.

[0053] 3D printing technology achieves micron-level manufacturing precision, ensuring that the structural dimensions of the evaporator body are highly consistent with design requirements, thereby improving the overall performance and efficiency of the evaporator. 3D printing allows for the design of more complex and intricate structures, such as internal flow channels and heat sinks, which are difficult to achieve using traditional manufacturing methods. Optimizing the structural design can further improve the heat transfer efficiency and evaporation effect of the evaporator. 3D printing technology can directly produce finished products from CAD models without the need for molds, fixtures, or other auxiliary tools, significantly shortening the manufacturing cycle. At the same time, reducing intermediate steps also lowers manufacturing costs. 3D printing uses a layer-by-layer deposition method to manufacture parts, maximizing the use of printing materials and reducing waste. This is significant for reducing production costs and improving resource utilization efficiency. The high flexibility of 3D printing technology allows the evaporator body to be customized according to specific application scenarios, meeting the personalized needs of customers.

[0054] According to one embodiment of the present invention, the evaporator includes a base 110, on which a spiral groove 108 is provided, and a copper tube 112 is provided in the groove 108, forming a flow channel 100.

[0055] In one embodiment of this invention, the evaporator includes a base 110 with cleverly designed spiral grooves 108. More uniquely, copper tubes 112 are embedded within these grooves 108, and these copper tubes 112 serve as flow channels 100 for fluid flow. This design combines structural innovation with functional efficiency, aiming to provide a high-performance evaporator.

[0056] As the supporting structure of the evaporator, the base 110 must be made of materials and manufactured using processes that ensure it can withstand various stresses and environmental conditions during operation. The design of the spiral groove 108 fully considers the fluid flow characteristics and heat exchange efficiency. By embedding the copper tube 112 into the groove 108, not only is the fluid flow path extended, increasing the contact time and area between the fluid and the inner wall of the copper tube 112, thus improving heat exchange efficiency, but the spiral layout also helps guide the fluid to flow in a more uniform and stable manner, avoiding uneven distribution and localized overheating of the fluid within the flow channel 100.

[0057] Furthermore, the choice of material for the copper tube 112, which serves as the flow channel 100, has been carefully considered. Copper has excellent thermal conductivity and corrosion resistance, ensuring efficient heat exchange between the fluid and the evaporator body 106 during flow, while also resisting the corrosive effects of the fluid and extending the service life of the evaporator.

[0058] The combination of the spiral groove 108 and the copper tube 112 significantly increases the contact time and area between the fluid and the inner wall of the copper tube 112, thereby significantly improving heat exchange efficiency. This allows the evaporator to reach the required temperature or evaporation rate in a shorter time, improving the overall system performance. The layout of the spiral groove 108 helps guide the fluid to flow in a more uniform and stable manner, avoiding uneven distribution and localized overheating of the fluid within the flow channel 100. This helps reduce energy consumption and extend the service life of the evaporator. The base 110, as the supporting structure of the evaporator, has a robust design that can withstand various stresses and environmental conditions during operation. At the same time, the combination of the spiral groove 108 and the copper tube 112 also enhances the overall structural strength and stability of the evaporator, enabling it to maintain excellent performance even in harsh working environments. The copper tube 112, as the material of the flow channel 100, has good corrosion resistance and wear resistance, resisting the corrosive effects of the fluid and extending the service life of the evaporator. Because the evaporator of this invention possesses high heat exchange efficiency, optimized fluid flow characteristics, enhanced structural strength and stability, and good corrosion resistance, it can adapt to a variety of different working environments and fluid conditions. This makes the evaporator widely applicable in refrigeration, air conditioning, chemical and other fields.

[0059] According to one embodiment of the present invention, the copper tube 112 includes at least one of a red copper tube 112 and an oxygen-free copper tube 112.

[0060] In one embodiment of this invention, the copper tube 112 in the evaporator is made of at least one of pure copper tube 112 and oxygen-free copper tube 112. This design choice aims to combine the advantages of different copper materials to meet the comprehensive requirements of the evaporator for heat exchange efficiency, corrosion resistance and mechanical strength.

[0061] 112 copper tubes typically refer to high-purity copper tubes, which possess excellent thermal conductivity and ductility. In evaporators, 112 copper tubes can rapidly transfer heat from the fluid to other parts of the evaporator, thereby improving heat exchange efficiency. Simultaneously, 112 copper tubes also exhibit relatively good corrosion resistance, maintaining stable performance under various fluid environments.

[0062] Oxygen-free copper tube 112 undergoes strict control of oxygen content during manufacturing to achieve higher purity and better mechanical properties. Oxygen-free copper tube 112 not only boasts excellent thermal conductivity but also possesses high strength and hardness, enabling it to withstand various stresses and pressures during evaporator operation. Furthermore, oxygen-free copper tube 112 exhibits outstanding corrosion resistance, maintaining long-term stability even in harsh fluid environments.

[0063] In the embodiments of this utility model, by selecting at least one of copper tube 112 and oxygen-free copper tube 112 as the material of the evaporator flow channel 100, the advantages of these two copper materials can be fully utilized to improve the heat exchange efficiency, corrosion resistance and mechanical strength of the evaporator.

[0064] Both copper tube 112 and oxygen-free copper tube 112 possess excellent thermal conductivity, enabling rapid heat transfer from the fluid to other parts of the evaporator, thereby improving heat exchange efficiency. This helps the evaporator reach the required temperature or evaporation rate in a shorter time, improving the overall system performance. Both copper tube 112 and oxygen-free copper tube 112 exhibit good corrosion resistance, maintaining stable performance in various fluid environments. This helps extend the evaporator's service life and reduce maintenance and replacement costs due to corrosion. Oxygen-free copper tube 112 has high strength and hardness, capable of withstanding various stresses and pressures during evaporator operation. This helps ensure stable performance of the evaporator even in harsh operating environments, improving system reliability and safety. By selecting at least one of copper tube 112 and oxygen-free copper tube 112 as the material for the evaporator's flow channel 100, flexible material combinations can be made according to specific application scenarios and requirements. This helps meet the performance requirements of different customers for evaporators, enhancing the product's market competitiveness.

[0065] According to one embodiment of the present invention, the copper tube 112 is welded to the groove 108.

[0066] In one embodiment of this invention, the copper tube 112 in the evaporator is fixed to the groove 108 on the base 110 by welding. This design choice aims to ensure a firm and reliable connection between the copper tube 112 and the groove 108 while maintaining good thermal conductivity.

[0067] Specifically, during the welding process, one end or the entire length of the copper tube 112 is precisely placed within the groove 108 on the base 110. Then, using appropriate welding techniques and materials (such as brazing wire or solder paste), welding is performed on the contact surface between the copper tube 112 and the groove 108. After welding, a strong and sealed connection is formed between the copper tube 112 and the groove 108, which helps prevent fluid leakage and ensures that heat can be effectively transferred from the fluid to the base 110.

[0068] Furthermore, the choice of welding method was carefully considered. To ensure weld quality and thermal conductivity, a welding method compatible with the copper tube 112 material is typically selected, such as TIG welding (tungsten inert gas welding) or MIG welding (metal inert gas welding). These methods provide high-quality weld joints while maintaining the thermal conductivity of the copper tube 112 without compromise.

[0069] Fixing the copper tube 112 into the groove 108 by welding ensures a strong and reliable connection between the copper tube 112 and the groove 108. This connection method can withstand various stresses and pressures during evaporator operation, thereby improving the overall structural strength of the evaporator. The welded seal effectively prevents fluid leakage from the gap between the copper tube 112 and the groove 108. This helps maintain the normal operation of the evaporator and avoids performance degradation or malfunction due to leakage. The welding materials and methods used are compatible with the copper tube 112 material, thus preserving its thermal conductivity. This helps ensure that heat is effectively transferred from the fluid to the housing 110, thereby improving the heat exchange efficiency of the evaporator. Welding is efficient and fast, significantly improving the evaporator's production efficiency. Furthermore, since no additional connectors or seals are required during welding, production costs can be reduced.

[0070] According to one embodiment of the present invention, the outer wall of the flow channel 100 is provided with a heat exchange structure.

[0071] In one embodiment of this invention, a heat exchange structure is provided on the outer wall of the flow channel 100. This arrangement aims to improve the heat exchange performance of the entire system by increasing the heat exchange area or improving the heat exchange efficiency of the outer wall of the flow channel 100. Specifically, the heat exchange structure can be designed in various forms, including but not limited to fins, spiral grooves, microchannels, etc. These structures can increase the contact area between the fluid and the outer wall of the flow channel 100, promoting heat transfer and exchange.

[0072] By incorporating a heat exchange structure on the outer wall of the flow channel 100, the contact area between the fluid and the wall surface is increased, thereby improving the rate and efficiency of heat exchange. The heat exchange structure can guide the fluid to form more complex flow patterns near the wall, such as eddies and turbulence. These flow patterns are beneficial for heat transfer and mixing, further enhancing the heat exchange effect. Some heat exchange structures (such as fins and ribs) not only increase the heat exchange area but also reinforce the structure of the flow channel 100, improving its overall strength and stability. Under harsh conditions such as high pressure and high temperature, the heat exchange structure can share some of the pressure, reducing deformation and damage to the flow channel 100 caused by thermal expansion or mechanical stress. The design of the heat exchange structure can optimize the fluid flow path and velocity distribution, reducing fluid resistance and energy consumption within the flow channel 100. Through a reasonable heat exchange structure design, uniform fluid distribution and thorough mixing can be achieved, improving the uniformity and efficiency of heat exchange. The heat exchange structure can typically be compactly arranged on the outer wall of the flow channel 100 without requiring additional space or equipment, thus improving the compactness and integration of the entire system. This helps reduce the size and weight of the equipment, lowering manufacturing and transportation costs, while improving equipment reliability and lifespan. The design of the heat exchange structure can be adjusted and optimized according to specific application scenarios and needs. For example, in applications requiring efficient heat exchange, large-area finned or finned structures can be used; in applications requiring high pressure or high temperature, more robust and durable heat exchange structures can be used.

[0073] According to one embodiment of the present invention, the inner wall of the flow channel 100 has a smooth transition.

[0074] In one embodiment of this invention, the inner wall of the flow channel 100 is designed with a smooth transition. This means that the inner wall of the flow channel 100 does not have abrupt edges or steps at bends or connections, but instead presents a continuous, smooth curve or surface. This design aims to reduce the resistance and energy consumption of the fluid flowing within the flow channel 100, while improving the stability and uniformity of the fluid.

[0075] The smooth transition of the inner wall of the flow channel 100 reduces eddies and turbulence generated at bends or junctions, thereby reducing fluid resistance. This helps reduce energy consumption and improve the efficiency of the entire system. The smooth transition design ensures stable fluid flow within the flow channel 100, avoiding violent fluctuations or oscillations. This is particularly important for applications requiring precise control of fluid flow rate. The smooth transition of the inner wall of the flow channel 100 helps ensure uniform fluid distribution within the flow channel 100, avoiding localized excessively high or low flow velocities. This is significant for improving heat exchange efficiency and reducing fluid scouring and corrosion of the wall surface. The smooth transition of the inner wall of the flow channel 100 reduces fluid scouring and wear on the wall surface, thereby extending equipment life. This helps reduce maintenance costs and improve equipment reliability and stability. The smooth transition design optimizes the fluid flow path and velocity distribution, improving fluid dynamics performance. This contributes to achieving more efficient and energy-saving fluid transport and processing processes.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An evaporator, characterized in that, include: The flow channel (100) is spiral in shape; A fluid inlet (102) is formed at the first end of the flow channel (100), the fluid inlet (102) being formed near the center of the spiral flow channel (100); A fluid outlet (104) is formed at the second end of the flow channel (100), the fluid outlet (104) is formed near the edge of the spiral flow channel (100), and the fluid outlet (104) and the fluid inlet (102) are in fluid communication through the flow channel (100).

2. The evaporator according to claim 1, characterized in that, The cross-sectional areas of the flow channels (100) are equal in the direction from the fluid inlet (102) to the fluid outlet (104).

3. The evaporator according to claim 1, characterized in that, The cross-sectional area of ​​the flow channel (100) gradually increases from the fluid inlet (102) to the fluid outlet (104).

4. The evaporator according to any one of claims 1 to 3, characterized in that, The evaporator includes an evaporator body (106) with a spiral groove (108) formed inside the evaporator body (106), and the groove (108) forms the flow channel (100).

5. The evaporator according to claim 4, characterized in that, The evaporator body (106) is formed using 3D printing technology.

6. The evaporator according to any one of claims 1 to 3, characterized in that, The evaporator includes a base (110) with a spiral groove (108) on the base (110) and a copper tube (112) inside the groove (108), the copper tube (112) forming the flow channel (100).

7. The evaporator according to claim 6, characterized in that, The copper tube (112) includes at least one of red copper tube (112) and oxygen-free copper tube (112).

8. The evaporator according to claim 6, characterized in that, The copper tube (112) is welded to the groove (108).

9. The evaporator according to any one of claims 1 to 3, characterized in that, The outer wall of the flow channel (100) is provided with a heat exchange structure.

10. The evaporator according to any one of claims 1 to 3, characterized in that, The inner wall of the flow channel (100) has a smooth transition.

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