Evaporator with dehumidification function

Abstract

This utility model belongs to the field of evaporator dehumidification technology, specifically an evaporator with dehumidification function, including: a shell, an air inlet on one side of the shell, an air outlet on the lower side of the other side of the shell, a first drain outlet at the bottom of the shell, an electrostatic adsorption mesh installed on the inner wall of the shell, a second drain outlet located above the first drain outlet, and a guide plate installed on one side of the V-shaped guide groove; through the cooperation of the V-shaped guide groove and the inclined plate, condensate is quickly discharged, and the electrostatic adsorption mesh pre-captures suspended water droplets in the air, thereby reducing the water vapor in the evaporator. Due to the alternating arrangement of the first hydrophilic coating and the hydrophobic coating, the drainage speed is improved. When the cold air is discharged outward, it comes into contact with the porous metal foam layer, increasing the condensation surface area and disrupting the air laminar flow. Through the cooperation of the above structures, the heat and mass exchange efficiency can be improved, thereby increasing the dehumidification intensity of the evaporator.

Description

Technical Field

[0001] This utility model belongs to the field of evaporator dehumidification technology, specifically an evaporator with dehumidification function. Background Technology

[0002] Plate evaporators are a new type of energy-saving evaporation equipment that uses metal plates as the main heat transfer elements. Their core structure consists of heat exchange plate groups, pressing devices, and separation chambers. The equipment achieves counter-current heat transfer through alternating material channels and heating channels, which significantly reduces the amount of heating steam used.

[0003] A Chinese patent with authorization announcement number CN201890592U discloses an evaporator fixture. The purpose of this utility model is to design an evaporator fixture that is easy to use. The structure of this utility model is an evaporator fixture, which includes a fixture frame made of bakelite. The structure of this utility model is simple, which can effectively reduce the weight of the fixture and bring convenience to the operator.

[0004] However, the above solutions still have some problems. The evaporator has a simple structure and contains moisture during use. This can affect food production and cause food quality problems during food processing that requires cooling. As a result, the evaporator cannot be used for food processing, which reduces its application range. Therefore, an evaporator with dehumidification function is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes an evaporator with dehumidification function.

[0006] The technical solution adopted by this utility model to solve its technical problem is an evaporator with dehumidification function, including: a shell, an air inlet on one side of the shell, an air outlet on the lower side of the other side of the shell, a first drain outlet at the bottom of the shell, an electrostatic adsorption mesh installed on the inner wall of the shell, a V-shaped guide groove installed on the inner wall of the shell, a second drain outlet on one side of the V-shaped guide groove, the second drain outlet being located above the first drain outlet, a guide plate installed on one side of the V-shaped guide groove, one side of the guide plate being connected to the air outlet, a porous metal foam layer installed on one side of the guide plate, a semiconductor cooling chip installed below the V-shaped guide groove, the second drain outlet being located on one side of the semiconductor cooling chip, and an inclined plate installed at the center of the upper surface of the V-shaped guide groove. The electrostatic adsorption mesh pre-captures suspended water droplets in the air, which can reduce the moisture load on the surface of the evaporator, thereby capturing the tiny water droplets that slide down with the condensate, thus improving the dehumidification efficiency by 15% to 20%.

[0007] Preferably, the upper surface of the V-shaped guide channel is provided with a first hydrophilic coating and the upper surface of the V-shaped guide channel is provided with a hydrophobic coating. The first hydrophilic coating and the hydrophobic coating are alternately arranged. The first hydrophilic coating can accelerate the accumulation of condensate, and the hydrophobic coating can reduce the adhesion resistance of the water film, thereby increasing the drainage speed by 30% and preventing water accumulation and mold growth.

[0008] Preferably, the interior of the outer shell is equipped with corrugated fins, the surface of the corrugated fins is provided with a second hydrophilic coating, and the interior of the corrugated fins is permeated with microchannel flat tubes. The spacing gradient of multiple sets of corrugated fins is varied, with denser spacing on the air inlet side and sparser spacing on the air outlet side, thereby improving heat exchange efficiency.

[0009] Preferably, a turbine distributor is installed on the microchannel flat tube, and a refrigerant distributor is installed at one end of the microchannel flat tube. The turbine distributor and the refrigerant distributor are connected. The turbine distributor initially disperses the refrigerant and reduces the mainstream velocity, thereby reducing the kinetic energy loss of the evaporator.

[0010] Preferably, the turbine-type distributor is installed on one side of the housing, the inner wall of the housing is provided with a heat insulation layer, and one side of the heat insulation layer is provided with a paraffin layer. With the cooperation of the heat insulation layer, the paraffin layer and the metal foam composite PCM layer, the heat conducted by the housing can be directly absorbed.

[0011] Preferably, a metal foam composite PCM layer is provided on one side of the paraffin layer. The metal foam composite PCM layer is connected to the inner wall of the shell. The combination of the wax layer and the metal foam composite PCM layer can enhance heat transfer and thus improve the performance of the evaporator.

[0012] The advantages of this invention are as follows: the combination of V-shaped guide groove and inclined plate allows for rapid drainage of condensate, and the electrostatic adsorption net pre-captures suspended water droplets in the air, reducing water vapor in the evaporator. The alternating arrangement of the first hydrophilic coating and hydrophobic coating improves the drainage speed. When cold air is discharged outward, it comes into contact with the porous metal foam layer, increasing the condensation surface area and disrupting the laminar flow of air. Through the combination of the above structures, the heat and mass exchange efficiency can be improved, thereby increasing the dehumidification intensity of the evaporator.

[0013] This invention utilizes a gradient distribution of multiple sets of corrugated fins with denser spacing on the inlet side and sparser spacing on the outlet side. This, combined with microchannel flat tubes, increases the heat exchange area, promotes the spread of condensate, and improves the heat exchange efficiency of the evaporator. Furthermore, the combination of a turbine distributor, a refrigerant distributor, and microchannel flat tubes ensures more uniform refrigerant distribution, thus preventing liquid phase separation. With the cooperation of the insulation layer, paraffin layer, and metal foam composite PCM layer, it can directly absorb heat conducted through the shell. The combination of corrugated fins and microchannel flat tubes further enhances heat transfer, thereby improving the performance of the evaporator. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure;

[0016] Figure 2 This is a schematic diagram of the overall structure in cross-section;

[0017] Figure 3 This is a schematic diagram of an electrostatic adsorption network;

[0018] Figure 4 Schematic diagram of V-shaped guide channel;

[0019] Figure 5 This is a schematic cross-sectional view of the heat transfer component.

[0020] In the diagram: 1. Outer shell; 2. Air inlet; 3. Air outlet; 4. First drain outlet; 5. Electrostatic adsorption mesh; 6. V-shaped guide channel; 7. Guide plate; 8. Porous metal foam layer; 9. Semiconductor cooling chip; 10. Inclined plate; 11. First hydrophilic coating; 12. Hydrophobic coating; 13. Corrugated fins; 14. Microchannel flat tube; 15. Turbine distributor; 16. Refrigerant distributor; 17. Insulation layer; 18. Paraffin layer; 19. Metal foam composite PCM layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5 As shown, an evaporator with dehumidification function includes: a shell 1, an air inlet 2 on one side of the shell 1, an air outlet 3 on the lower side of the other side of the shell 1, a first drain outlet 4 at the bottom of the shell 1, an electrostatic adsorption mesh 5 installed on the inner wall of the shell 1, a V-shaped guide groove 6 installed on the inner wall of the shell 1, a second drain outlet on one side of the V-shaped guide groove 6, the second drain outlet being located above the first drain outlet 4, a guide plate 7 installed on one side of the V-shaped guide groove 6, one side of the guide plate 7 being connected to the air outlet 3, a porous metal foam layer 8 installed on one side of the guide plate 7, a semiconductor cooling chip 9 installed below the V-shaped guide groove 6, the second drain outlet being located on one side of the semiconductor cooling chip 9, an inclined plate 10 installed at the center of the upper surface of the V-shaped guide groove 6, a first hydrophilic coating 11 and a hydrophobic coating 12 installed on the upper surface of the V-shaped guide groove 6, the first hydrophilic coating 11 and the hydrophobic coating 12 being alternately arranged;

[0023] Existing evaporators often contain moisture during operation, which can affect food production and quality during food processing requiring cooling. This renders the evaporator unusable for food processing, thus limiting its application. Therefore, this paper proposes an evaporator with dehumidification capabilities. In actual use, when the evaporator is running, ambient heat is drawn through the air inlet 2 and acted upon by the corrugated fins 13 and microchannel flat tubes 14, causing the internal liquid refrigerant to evaporate into a gaseous state, thereby achieving a cooling or temperature reduction effect. When the liquid refrigerant evaporates into a gaseous state... A large amount of water vapor will be generated. The cold air carries the water vapor down into the V-shaped guide channel 6, which forms a natural gravity drainage channel. In conjunction with the inclined plate 10, it prevents water from accumulating inside the V-shaped guide channel 6, thus quickly guiding the flow. This reduces the residence time of condensate and lowers the risk of moisture being re-carried by the airflow. Furthermore, in conjunction with the guide plate 7, it can form laminar flow, thereby improving heat exchange uniformity. As the cold air carries the water vapor down, the electrostatic adsorption net 5 pre-captures the suspended water droplets in the air, reducing the subsequent wet load on the evaporator surface, thus allowing for secondary capture and condensation. The tiny water droplets that slide off improve dehumidification efficiency by 15% to 20%. The design employs an alternating arrangement of a first hydrophilic coating 11 and a hydrophobic coating 12. The first hydrophilic coating 11 accelerates condensate collection, while the hydrophobic coating 12 reduces water film adhesion resistance, resulting in a 30% increase in drainage speed and preventing water accumulation and mold growth. Furthermore, the semiconductor cooling chip 9 is located below the V-shaped guide groove 6. As cold air flows along the guide plate 7 through the V-shaped guide groove 6, the semiconductor cooling chip 9 can further cool the collected condensate to below the dew point, allowing the flowing cold air to enter... Moisture is separated in one step. The separated moisture falls from the second drain outlet into the first drain outlet 4 along the inclined plate 10 and is then discharged outward. When the cold air enters the guide plate 7 from the V-shaped guide groove 6, it comes into contact with the porous metal foam layer 8, which can increase the condensation surface area and disrupt the air laminar flow, thereby improving the heat and mass exchange efficiency. With the cooperation of the electrostatic adsorption net 5, the V-shaped guide groove 6, the guide plate 7, the porous metal foam layer 8, the semiconductor refrigeration chip 9, the first hydrophilic coating 11 and the hydrophobic coating 12, the separation of water vapor in the evaporator can be improved, thereby improving the dehumidification intensity of the evaporator.

[0024] Please see Figure 1-5 As shown, a corrugated fin 13 is installed inside the outer shell 1. A second hydrophilic coating is provided on the surface of the corrugated fin 13. A microchannel flat tube 14 runs through the inside of the corrugated fin 13. A turbine distributor 15 is installed on the microchannel flat tube 14. A refrigerant distributor 16 is installed at one end of the microchannel flat tube 14. The turbine distributor 15 and the refrigerant distributor 16 are connected. The turbine distributor 15 is installed on one side of the outer shell 1. An insulation layer 17 is provided on the inner wall of the outer shell 1. A paraffin layer 18 is provided on one side of the insulation layer 17. A metal foam composite PCM layer 19 is provided on one side of the paraffin layer 18. The metal foam composite PCM layer 19 is connected to the inner wall of the outer shell 1.

[0025] During evaporator operation, ambient heat is drawn through the air inlet 2 and absorbed by the corrugated fins 13 and microchannel flat tubes 14, causing the internal liquid refrigerant to evaporate into a gaseous state. The spacing gradient of the multiple sets of corrugated fins 13, with denser fins on the inlet side and sparser fins on the outlet side, and the use of microchannel flat tubes 14 instead of round tubes, increases the heat exchange area. Furthermore, the surface of the corrugated fins 13 is coated with a second hydrophilic coating, which promotes the spread of condensate. Thus, the combination of these two elements improves the heat exchange efficiency of the evaporator. The turbine distributor 15 initially disperses the refrigerant, reducing the mains velocity and thereby decreasing the evaporator's kinetic energy. The refrigerant is pre-distributed by the turbine distributor 15 and the refrigerant distributor 16 and enters the microchannel flat tube 14 in a more stable state, making the refrigerant distribution more uniform and avoiding liquid phase separation. With the cooperation of the insulation layer 17, the paraffin layer 18 and the metal foam composite PCM layer 19, it can directly absorb the heat conducted by the shell, thereby increasing the buffering effect of temperature fluctuations. With the cooperation of the corrugated fins 13, the microchannel flat tube 14, the turbine distributor 15 and the refrigerant distributor 16, heat transfer can be enhanced, thereby improving the performance of the evaporator.

[0026] Working principle: After the surrounding heat enters through the air inlet 2, it is acted upon by the corrugated fins 13 and the microchannel flat tube 14, causing the internal liquid refrigerant to evaporate into a gaseous state. With the cooperation of the insulation layer 17, the paraffin layer 18, and the metal foam composite PCM layer 19, it can directly absorb the heat conducted by the shell, thereby increasing the buffering effect of temperature fluctuations and achieving a cooling or temperature reduction effect. The cold air carrying water vapor descends into the V-shaped guide channel 6, where it cooperates with the inclined plate 10 to prevent water accumulation inside the V-shaped guide channel 6. Furthermore, in conjunction with the guide plate 7, it can form laminar flow, thereby improving the heat exchange uniformity. During the descent of water vapor, the electrostatic adsorption mesh 5 pre-adsorbs... Suspended water droplets in the air are captured, and as the water vapor passes through the V-shaped guide groove 6, the alternating arrangement of the first hydrophilic coating 11 and the hydrophobic coating 12 can improve the drainage speed. The semiconductor cooling chip 9 is located below the V-shaped guide groove 6, allowing the flowing cold air to further precipitate moisture. The precipitated moisture falls from the second drain port into the first drain port 4 along the inclined plate 10 and is then discharged outward. The cold air is guided by the guide plate 7 and discharged outward from the exhaust port 3. When the cold air flows, it is adsorbed by the porous metal foam layer 8, which increases the condensation surface area and disrupts the air laminar flow, thereby improving the heat and mass exchange efficiency and thus improving the performance of the evaporator.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An evaporator having a dehumidifying function, characterized by: include: The outer shell (1) has an air inlet (2) on one side and an exhaust outlet (3) on the lower side of the other side. The bottom of the outer shell (1) has a first drain outlet (4). The inner wall of the outer shell (1) is equipped with an electrostatic adsorption mesh (5). The inner wall of the outer shell (1) is equipped with a V-shaped guide groove (6). A second drain outlet is located on one side of the V-shaped guide groove (6) and is located above the first drain outlet (4). A guide plate (7) is installed on one side of the V-shaped guide groove (6) and is connected to the exhaust outlet (3). A porous metal foam layer (8) is installed on one side of the guide plate (7). A semiconductor cooling chip (9) is installed below the V-shaped guide groove (6). The second drain outlet is located on one side of the semiconductor cooling chip (9). An inclined plate (10) is installed at the center of the upper surface of the V-shaped guide groove (6).

2. The evaporator with dehumidification function according to claim 1, characterized in that: The upper surface of the V-shaped flow channel (6) is provided with a first hydrophilic coating (11), and the upper surface of the V-shaped flow channel (6) is provided with a hydrophobic coating (12). The first hydrophilic coating (11) and the hydrophobic coating (12) are alternately arranged.

3. The evaporator with dehumidification function according to claim 1, characterized in that: The shell (1) is equipped with a corrugated fin (13) inside, the surface of the corrugated fin (13) is provided with a second hydrophilic coating, and a microchannel flat tube (14) runs through the inside of the corrugated fin (13).

4. The evaporator with dehumidification function according to claim 3, characterized in that: A turbine distributor (15) is installed on the microchannel flat tube (14), and a refrigerant distributor (16) is installed at one end of the microchannel flat tube (14). The turbine distributor (15) and the refrigerant distributor (16) are connected.

5. The evaporator with dehumidification function according to claim 4, characterized in that: The turbine-type distributor (15) is installed on one side of the housing (1), and the inner wall of the housing (1) is provided with a heat insulation layer (17), and a paraffin layer (18) is provided on one side of the heat insulation layer (17).

6. The evaporator with dehumidification function according to claim 5, characterized in that: A metal foam composite PCM layer (19) is provided on one side of the paraffin layer (18), and the metal foam composite PCM layer (19) is connected to the inner wall of the outer shell (1).

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