Heat pipe type direct evaporation water chilling unit based on solution dehumidification

Abstract

The heat pipe type direct evaporation water chilling unit based on solution dehumidification comprises a unit frame, a cold water tank used for storing a solution is perpendicularly fixed to the dead center of the interior of the unit frame, a heat pipe condenser is connected to the interior of the top end of the cold water tank in an inserted mode, and a heat dissipation and discharge assembly is arranged above the heat pipe condenser. An inner side perforated plate is tightly attached to the outer wall of the cold water tank, the outer wall of the inner side perforated plate is sleeved with an annular dehumidification ring used for providing a solution dehumidification space, a dehumidification assembly is arranged in the annular dehumidification ring, and the outer wall of the annular dehumidification ring is sleeved with an outer side breathable net plate; and an air control device is arranged in an air channel on one side wall surface of the unit frame. The annular liquid receiving tank efficiently recycles the solution which is not taken away by air through gradient design, the solution flows back to the cold water tank through a liquid return pipe and a pump to form closed-loop circulation, and solution waste is reduced.

Description

Technical Field

[0001] The present invention relates to the field of air treatment, in particular to a heat pipe type direct evaporation chiller based on solution dehumidification. Background Art

[0002] In the field of air treatment, especially in industrial production, commercial buildings and precision environments, the demand for air dehumidification and cooling is becoming increasingly stringent. Traditional air treatment equipment often has problems such as separation of dehumidification and cooling links and low integration. This results in bulky equipment, high space occupancy, and the need for additional pipes to connect various functional modules, increasing installation complexity and leakage risks.

[0003] The existing solution dehumidification equipment has a limited contact area between the solution and the air, and the dehumidification efficiency is low. In addition, the solution is prone to backflow due to pressure fluctuations during transportation, which affects the spray stability and leads to unstable dehumidification effect. At the same time, the solution recovery rate is low, and a large amount of solution that does not participate in dehumidification is directly discharged, which not only causes waste of resources but also increases operating costs.

[0004] In the cooling process, traditional air cooling or water cooling methods have the defects of low heat exchange efficiency and high energy consumption. Although some equipment uses heat pipe technology to achieve cooling, the combination of heat pipes and dehumidification systems is not tight enough, and heat exchange is insufficient, resulting in poor cooling effect. In addition, there is a lack of effective heat dissipation structure, which makes it easy for the equipment to operate at too high a temperature and affect stability.

[0005] Therefore, developing an air treatment equipment with high integration, good dehumidification and cooling effect, high solution utilization rate, stable operation and strong adaptability has become a technical problem to be solved urgently in this field. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the object of the present invention is to provide a heat pipe direct evaporation chiller based on solution dehumidification.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a heat pipe direct evaporation chiller based on solution dehumidification, including a unit frame, a cold water tank for storing solution is vertically fixed at the center of the interior of the unit frame, a heat pipe condenser is inserted into the top of the cold water tank, a heat dissipation discharge component is arranged above the heat pipe condenser, the outer wall of the cold water tank is tightly fitted with an inner porous plate, the outer wall of the inner porous plate is sleeved with an annular dehumidification ring for providing a solution dehumidification space, a dehumidification component is arranged inside the annular dehumidification ring, the outer wall of the annular dehumidification ring is sleeved with an outer breathable mesh plate, and a wind control device is arranged in the air channel on one side wall of the unit frame.

[0008] Furthermore, the heat pipe condenser includes a condensing section and an evaporating section. The bottom end of the heat pipe condenser inserted into the cold water tank is the condensing section, and the top end of the heat pipe condenser exposed on the top of the cold water tank is the evaporating section.

[0009] Furthermore, the heat dissipation assembly includes a heat pipe heat dissipation plate for dissipating heat from the evaporation section of the heat pipe condenser, a heat dissipation box is provided above the heat pipe heat dissipation plate, the lower edge of the heat dissipation box is connected to the unit frame to form a cooling discharge space, an exhaust pipe is plugged into the top center of the heat dissipation box, the exhaust pipe is connected to the conveying fan, the side wall of the heat dissipation box is connected to the unit frame through a connecting air duct, and the cold air processed by the unit frame enters the heat dissipation box through the connecting air duct.

[0010] Furthermore, the inner porous plate is an aluminum alloy annular plate, a plurality of through holes are opened on the inner porous plate, and the through holes are distributed in a matrix on the outer wall of the inner porous plate.

[0011] Furthermore, the annular dehumidification ring is an annular mesh cylinder with a hollow interior, and the inner wall and outer wall of the annular dehumidification ring are tightly fitted with the inner porous plate and the outer breathable mesh plate respectively.

[0012] Furthermore, the dehumidification component includes a V-shaped spray plate for dehumidifying the air. The V-shaped spray plate is arranged in multiple equal intervals inside the annular dehumidification ring. The interior of the V-shaped spray plate is hollow to form a cavity for solution transportation. A plurality of small holes are provided on the inner inclined surface of the V-shaped spray plate. The closed end of the V-shaped spray plate is connected to a solution delivery pipe. The bottom end of the solution delivery pipe is connected to the cold water tank through a U-shaped tube and a pump, and the V-shaped spray plate is fixed in series to the inside of the annular dehumidification ring through reinforcing ribs.

[0013] Furthermore, an annular liquid receiving tank is fixed inside the annular dehumidification ring below the V-shaped spray plate, and the interior of the annular liquid receiving tank is connected to the cold water tank through a pump to form a solution circuit.

[0014] Furthermore, the wind control device includes louvers for controlling the amount of air intake, and multiple louvers are rotatably connected in the air channel of the unit frame. A louver adjustment block is fixed at one end of the air channel above the louver, and a driving member is provided on the louver adjustment block. The driving member is composed of a hydraulic cylinder and a push rod, and the push rod is connected to the louver adjustment block through a strip slide.

[0015] Furthermore, a dust filter plate is fixed on the side wall of the air passage of the unit frame.

[0016] The beneficial effects of the present invention are: The unit features a compact and efficient structural design with high space utilization: the unit adopts a cylindrical structure with various components arranged vertically around the cold water tank. The annular dehumidification ring, inner porous plate, and outer breathable mesh plate form a concentric annular space. The components are designed to be nested in layers to integrate multiple links such as air filtration, dehumidification, heat exchange, and heat dissipation in a limited space, greatly improving space utilization and facilitating installation and maintenance.

[0017] The dehumidification effect is significant and stable: a multi-stage dehumidification structure is formed by multiple equidistantly arranged V-shaped spray discs. The solution evenly penetrates through the hollow cavity and the small holes on the inner slope to form a large-area liquid film, which is fully in contact with the air. Combined with the closed space design of the annular dehumidification ring, the water absorption efficiency is significantly improved; at the same time, the liquid sealing effect of the U-shaped tube prevents the solution from backflowing and affecting the spray stability, ensuring the continuous and efficient dehumidification process.

[0018] Solution recycling, energy saving and environmental protection: The annular liquid receiving tank uses a slope design to efficiently recover the solution that is not carried away by the air, and returns it to the cold water tank through the return pipe and pump to form a closed loop circulation, reducing solution waste.

[0019] Strong operational stability and wide adaptability: key components are made of corrosion-resistant materials such as stainless steel and aluminum alloy to improve the equipment's weather resistance. The wind control device is driven by a hydraulic cylinder to achieve flexible adjustment of the air intake volume, which can be dynamically adapted according to different dehumidification needs. The condensing section and evaporating section of the heat pipe condenser are separated by a design that combines efficient heat dissipation from the heat dissipation discharge box to ensure stable operation of the unit under different working conditions, making it suitable for air treatment scenarios in various environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the present invention.

[0021] Figure 2 yes Figure 1 Cross-sectional connection structure details of the middle part structure.

[0022] Figure 3 yes Figure 1 Front view cross-sectional connection structure details.

[0023] Figure 4 yes Figure 3 Detailed diagram of the connection structure between the V-shaped spray plate and the solution delivery pipe.

[0024] Figure 5 yes Figure 1 Top view cross-sectional connection structure details.

[0025] Figure 6 yes Figure 1 Detailed view of the connection structure from above.

[0026] Figure 7 yes Figure 3Detailed top view of the connection structure between the heat pipe condenser and the heat pipe radiator.

[0027] Explanation of the accompanying symbols: 1. Unit frame, 2. Cold water tank, 3. Heat pipe condenser, 4. Heat pipe heat sink, 5. Heat dissipation discharge box, 6. Connecting air duct, 7. Inner porous plate, 8. Annular dehumidification ring, 9. V-shaped spray plate, 10. Solution delivery pipe, 11. Outer breathable mesh plate, 12. Annular liquid receiving trough, 13. Dust filter plate, 14. Louver plate, 15. Louver adjustment block, 16. Driving part. DETAILED DESCRIPTION

[0028] Below in conjunction with specific embodiment, further elaborate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not used in limiting the scope of the present invention. In addition, should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of application.

[0029] See also Figure 1-Figure 7 1 is a schematic diagram of the structure of the present invention, a heat pipe direct evaporation chiller based on solution dehumidification, including a unit frame 1, which is a cylindrical structure as a whole. A cold water tank 2 for storing solution is vertically fixed to the center of the unit frame 1. The cold water tank 2 is made of stainless steel. A liquid level sensor and a temperature sensor are installed on the inside of the box to monitor the liquid level and temperature of the solution in real time. A heat pipe condenser 3 is plugged into the top of the cold water tank 2. The heat pipe condenser 3 is made of high-efficiency copper and is filled with refrigerant. The heat pipe condenser 3 includes a condensing section and an evaporating section. The bottom end of the heat pipe condenser 3 is inserted into the cold water tank 2 as the condensing section, and the top end of the heat pipe condenser 3 exposed to the top of the cold water tank 2 is the evaporating section. The heat pipe condenser 3 is provided above the heat pipe condenser 3. Heat dissipation assembly, the outer wall of the cold water tank 2 is tightly fitted with the inner porous plate 7, the outer wall of the inner porous plate 7 is sleeved with an annular dehumidification ring 8 for providing a solution dehumidification space, the annular dehumidification ring 8 is an annular mesh cylinder with a hollow interior, and the inner wall and outer wall of the annular dehumidification ring 8 are tightly fitted with the inner porous plate 7 and the outer breathable mesh plate 11 respectively, and a dehumidification assembly is provided inside the annular dehumidification ring 8, the dehumidification assembly is used to dehumidify the incoming air, the outer wall of the annular dehumidification ring 8 is sleeved with an outer breathable mesh plate 11, the outer breathable mesh plate 11 is made of stainless steel wire mesh, which can ensure air circulation and play a preliminary filtering role. A wind control device is provided in the air channel on one side wall of the unit frame 1, which can adjust the air intake according to the dehumidification situation.

[0030] The heat dissipation component includes a heat pipe heat dissipation plate 4 for dissipating heat from the evaporation section of the heat pipe condenser 3. The heat pipe heat dissipation plate 4 is made of aluminum alloy and fits tightly with the evaporation section to increase the heat dissipation area. A heat dissipation box 5 is provided above the heat pipe heat dissipation plate 4 to allow the air flow to dissipate heat from the heat pipe heat dissipation plate 4. The lower edge of the heat dissipation box 5 is connected to the unit frame 1 to form a cooling discharge space. An exhaust pipe is plugged into the top center of the heat dissipation box 5, and the exhaust pipe is connected to the conveying fan to discharge and transport the cooled air. The side wall of the heat dissipation box 5 is connected to the unit frame 1 through the connecting air duct 6. It is made of galvanized iron sheet and is provided with sound-absorbing cotton inside to reduce airflow noise. The cold air processed by the unit frame 1 enters the heat dissipation box 5 through the connecting air duct 6.

[0031] The inner porous plate 7 is an aluminum alloy circular plate with a plurality of through holes formed on the inner porous plate 7. The through holes are distributed in a matrix on the outer wall of the inner porous plate 7, which ensures that the air can contact the plate surface for heat exchange without hindering the flow of air in the annular dehumidification ring.

[0032] The dehumidification component includes a V-shaped spray plate 9 for dehumidifying the air. The V-shaped spray plate 9 is arranged in a plurality of equidistant layers inside the annular dehumidification ring 8, with a total of 4 layers. The interior of the V-shaped spray plate 9 is hollow to form a cavity for solution delivery. The cavity cross-section is rectangular. A plurality of small holes are provided on the inner inclined surface of the V-shaped spray plate 9 to ensure that the solution can evenly penetrate the inclined surface to form a large area of ​​liquid film or droplet area. The closed end of the V-shaped spray plate 9 is connected to the solution delivery pipe 10, and the bottom end of the solution delivery pipe 10 is connected to the cold water tank 2 through a U-shaped tube and a pump. The U-shaped tube is made of copper. A part of the solution will be stored at the bent bottom of the U-shaped tube to form a partition to prevent rapid backflow after the pump stops working. The pump is a corrosion-resistant centrifugal pump, and the V-shaped spray plate 9 is fixed to the inside of the annular dehumidification ring 8 through reinforcing ribs in series. The reinforcing ribs are made of stainless steel, and 4 reinforcing ribs are arranged between every two spray plates.

[0033] An annular liquid receiving tank 12 is fixed inside the annular dehumidification ring 8 below the V-shaped spray plate 9. The annular liquid receiving tank 12 is made of stainless steel and has a slope at the bottom. The lowest point is connected to the liquid return pipe. The interior of the annular liquid receiving tank 12 is connected to the cold water tank 2 through a pump to form a solution loop. The pump is the same model as the pump used in the solution delivery pipe 10.

[0034] The wind control device includes a louver 14 for controlling the air intake volume. The louver 14 is made of aluminum alloy. Multiple louvers 14 are rotatably connected in the air passage of the unit frame 1. A louver adjustment block 15 is fixed at one end of the air passage above the louver 14. The louver adjustment block 15 can drive the louver 14 to rotate in the air passage. A driving member 16 is provided on the louver adjustment block 15. The driving member 16 is composed of a hydraulic cylinder and a push rod. The push rod is connected to the louver adjustment block 15 through a strip slide groove, and the louver adjustment block 15 is driven to rotate by the operation of the driving member 16.

[0035] A dust filter plate 13 is fixed on the side wall of the air passage of the unit frame 1. The dust filter plate 13 adopts a double-layer structure, with the outer layer being a coarse-effect filter screen and the inner layer being a medium-effect filter screen, which can effectively filter dust and impurities in the air.

[0036] When the present invention is used: The outside air first enters through the air channel on one side of the unit frame 1. During the entry process, it first passes through the double-layer filtration of the dust filter plate 13 to ensure that the air entering the unit is clean. Then, the air encounters the wind control device. The hydraulic cylinder of the driving part 16 drives the top rod to extend and retract, and pushes the louver adjustment block 15 to rotate through the strip slide, thereby causing multiple aluminum alloy louvers 14 to rotate in the air channel, and flexibly adjusting the air intake volume according to actual dehumidification needs.

[0037] The air with adjusted air volume continues to flow, passes through the outer breathable mesh plate 11 and enters the annular dehumidification ring 8. The four-layer V-shaped spray disk 9 inside the annular dehumidification ring 8 begins to work. Under the action of the corrosion-resistant centrifugal pump, the solution in the cold water tank 2 is transported to the hollow cavity of the V-shaped spray disk 9 through the solution delivery pipe 10 and the copper U-shaped tube. The solution retained at the bottom of the U-shaped tube forms a partition to prevent the solution from quickly flowing back when the pump stops working. The solution penetrates evenly through the multiple small holes on the inner inclined surface of the V-shaped spray disk 9, forming a large area of ​​liquid film or droplet area on the inclined surface. When the air flows through here, it fully contacts the liquid film, and the moisture in the air is absorbed by the solution, completing the dehumidification process.

[0038] The dehumidified air continues to flow inward and contacts the inner porous plate 7. The through holes distributed in a matrix on the inner porous plate made of aluminum alloy allow the air to contact the plate surface for heat exchange without hindering its flow in the annular dehumidification ring, thereby further processing the air. At the same time, the annular liquid receiving trough 12 below the V-shaped spray plate 9 collects the solution that is not carried away by the air. The slope of the bottom of the annular liquid receiving trough 12 causes the solution to gather at the lowest point and flow back to the cold water tank 2 through the return pipe under the action of the pump, thereby forming a recycling utilization of the solution.

[0039] The dehumidified air is then transported to the heat dissipation box 5 through the connecting air duct 6. After entering the heat pipe condenser 3, the evaporation section and the heat pipe heat sink 4 are tightly fitted together, which increases the heat dissipation area. The cold air dissipates heat to the heat pipe heat sink 4 in the heat dissipation box 5. The refrigerant releases heat and liquefies in the condensation section. The heat is absorbed by the solution in the cold water tank to achieve cooling of the air.

[0040] Finally, the cooled air is discharged through the exhaust pipe at the top of the heat dissipation and discharge box 5 under the action of the conveying fan, completing the entire air treatment process.

Claims

1. A heat pipe direct evaporation chiller based on solution dehumidification, comprising a unit frame (1), characterized in that: A cold water tank (2) for storing a solution is vertically fixed at the center of the interior of the unit frame (1), a heat pipe condenser (3) is inserted into the top of the cold water tank (2), a heat dissipation assembly is arranged above the heat pipe condenser (3), an inner porous plate (7) is tightly fitted to the outer wall of the cold water tank (2), an annular dehumidification ring (8) for providing a solution dehumidification space is sleeved on the outer wall of the inner porous plate (7), a dehumidification assembly is arranged inside the annular dehumidification ring (8), an outer breathable mesh plate (11) is sleeved on the outer wall of the annular dehumidification ring (8), and a wind control device is arranged in the air passage on one side wall of the unit frame (1).

2. The heat pipe direct evaporation chiller based on solution dehumidification according to claim 1, characterized in that: The heat pipe condenser (3) comprises a condensation section and an evaporation section, wherein the portion of the bottom end of the heat pipe condenser (3) inserted into the cold water tank (2) is the condensation section, and the portion of the top end of the heat pipe condenser (3) exposed on the top of the cold water tank (2) is the evaporation section.

3. The heat pipe direct evaporation chiller based on solution dehumidification according to claim 1, characterized in that: The heat dissipation assembly includes a heat pipe heat dissipation plate (4) for dissipating heat from the evaporation section of the heat pipe condenser (3); a heat dissipation box (5) is provided above the heat pipe heat dissipation plate (4); the lower edge of the heat dissipation box (5) is connected to the unit frame (1) to form a cooling discharge space; an exhaust pipe is plugged into the top center of the heat dissipation box (5); the exhaust pipe is connected to the conveying fan; the side wall of the heat dissipation box (5) is connected to the unit frame (1) through the connecting air pipe (6); the cold air processed by the unit frame (1) enters the heat dissipation box (5) through the connecting air pipe (6).

4. The heat pipe direct evaporation chiller based on solution dehumidification according to claim 1, characterized in that: The inner porous plate (7) is an aluminum alloy annular plate. A plurality of through holes are provided on the inner porous plate (7), and the through holes are distributed in a matrix on the outer wall of the inner porous plate (7).

5. The heat pipe direct evaporation chiller based on solution dehumidification according to claim 1, characterized in that: The annular dehumidification ring (8) is an annular mesh cylinder with a hollow interior, and the inner wall and outer wall of the annular dehumidification ring (8) are tightly fitted with the inner porous plate (7) and the outer air-permeable mesh plate (11), respectively.

6. The heat pipe direct evaporation chiller based on solution dehumidification according to claim 5, characterized in that: The dehumidification component includes a V-shaped spray disc (9) for dehumidifying air. The V-shaped spray disc (9) is arranged in a plurality of equal intervals inside the annular dehumidification ring (8). The interior of the V-shaped spray disc (9) is hollow to form a cavity for solution delivery. A plurality of small holes are provided on the inner inclined surface of the V-shaped spray disc (9). The closed end of the V-shaped spray disc (9) is connected to a solution delivery pipe (10). The bottom end of the solution delivery pipe (10) is connected to the cold water tank (2) through a U-shaped pipe and a pump, and the V-shaped spray disc (9) is fixed in series inside the annular dehumidification ring (8) through reinforcing ribs.

7. The heat pipe direct evaporation chiller based on solution dehumidification according to claim 5, characterized in that: An annular liquid receiving trough (12) is fixed inside the annular dehumidification ring (8) below the V-shaped spray plate (9), and the inside of the annular liquid receiving trough (12) is connected to the cold water tank (2) via a pump to form a solution circuit.

8. The heat pipe direct evaporation chiller based on solution dehumidification according to claim 1, characterized in that: The wind control device includes louvers (14) for controlling the amount of air intake, wherein a plurality of louvers (14) are rotatably connected in the air passage of the unit frame (1), a louver adjustment block (15) is fixed at one end of the louver (14) passing through the air passage above the louver (14), and a driving member (16) is provided on the louver adjustment block (15), wherein the driving member (16) is composed of a hydraulic cylinder and a push rod, and the push rod is connected to the louver adjustment block (15) through a strip-shaped slide groove.

9. The heat pipe direct evaporation chiller based on solution dehumidification according to claim 1, characterized in that: A dust filter plate (13) is fixed on the side wall of the air passage of the unit frame (1).

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