Peak closed type condensation cooling device with water-saving, energy-saving and fog-dissipation functions

Abstract

The invention provides a peak closed type condensation cooling device with water-saving, energy-saving and fog-dissipation functions. The peak closed type condensation cooling device comprises a box body, and an air mixing chamber is arranged on the upper portion of an inner cavity of the box body; an inner cavity of the box body is sequentially connected with a fog dispersal module, a resistance reduction shutter and a water distribution device, the fog dispersal module divides the lower inner cavity of the box body into a first cavity and a second cavity, the fog dispersal module is provided with a cold air channel and a hot air channel which are communicated with the air mixing chamber, the first cavity is communicated with the cold air channel, and the second cavity is communicated with the hot air channel; an evaporation coil pipe is mounted at the position, close to the side wall of the box body, of the second cavity, and water dripped from the water distribution device can fall on the heat exchange wall surface of the evaporation coil pipe; damp and hot air at an outlet of the evaporation coil pipe is partially condensed through the rhombic fog dissipation filler, the condensed damp and hot air is mixed with cold air after heat exchange, the moisture content is reduced, the relative humidity is reduced, the temperature is reduced, then the air is discharged into the atmosphere to be in contact with environment low-temperature air, and the rime fog phenomenon is not prone to being generated.

Description

Technical Field

[0001] The present invention belongs to the field of heat exchange technology, and in particular relates to a peak closed condensing cooling device with water-saving, energy-saving and mist-eliminating functions. Background Art

[0002] As a highly efficient heat exchange device, the evaporative condenser cooler operates primarily based on the evaporative heat absorption of spray water and the convective heat transfer of air. The top of the evaporative condenser is equipped with a spray system, to which a circulating water pump delivers water from a water tank. Under the action of gravity, the spray water is sprayed through nozzles onto the outer surface of the coil, forming a film of water. A fan is installed on the top or side of the evaporative condenser. When the fan is running, it draws outside air into the device. This air exchanges heat with the water film on the outer surface of the coil, and some of the water in the water film evaporates into water vapor, which absorbs heat from the medium inside the coil. The water vapor produced by evaporation is discharged from the device along with the air. The heat exchange process is accompanied by a large consumption of spray water.

[0003] When the ambient temperature is low, the nearly saturated hot and humid air at the outlet of the evaporative condensation cooler comes into contact with the low-temperature ambient air, condenses, and precipitates small water droplets, producing white mist.

[0004] The generation of white fog has the following negative effects: 1) Impact on environmental aesthetics: A large amount of white fog will make the environment around the equipment hazy and cause visual pollution. This impact is more obvious especially in cities or areas with high requirements for environmental aesthetics.

[0005] 2) Changes in local weather: The white mist produced by clustered cooling towers or evaporative condensing coolers significantly increases the relative humidity and temperature of the local air, causing irreversible negative impacts on the ecological environment.

[0006] 3) Causes equipment corrosion: White mist contains certain acidic substances and salts, which adhere to the surrounding equipment and building surfaces, causing corrosion in the long term and shortening the service life of equipment and buildings.

[0007] 4) Causing safety hazards: In cold weather, the moisture in the white fog will freeze on the ground or roads, making the ground slippery and increasing the risk of pedestrians falling and vehicles skidding.

[0008] 5) Causes waste of water resources: The white mist in the cooling tower is actually the emission of water vapor, which means that a large amount of water resources are discharged into the atmosphere in the form of steam, causing waste of water resources.

[0009] To address the white mist in evaporative condensing coolers, existing technologies generally adopt the following two measures: 1) Heating method: Adding a pre-cooling heater to the top of the equipment heats the exhaust hot and humid air, raising its temperature and lowering its relative humidity. This prevents condensation and the formation of white mist when it comes into contact with the ambient cooler air. This heating process does not reduce the moisture content of the hot and humid air at the outlet of the evaporative condenser cooler, and therefore fails to achieve the goal of water conservation.

[0010] 2) Condensation method: Add a defogging module inside the equipment to partially condense the exhausted hot and humid air and recycle it. The condensed hot and humid air is mixed with the cold air after heat exchange, and its moisture content, relative humidity and temperature are reduced. It is then discharged into the atmosphere to contact with the ambient low-temperature air, thereby reducing the formation of white fog.

[0011] However, both the heating method and the condensation method require the addition of corresponding components inside the equipment, which will result in insufficient fan pressure head and air volume. When designing an evaporative condensing cooler, the fan power can only be increased, resulting in high energy consumption during equipment operation. Summary of the Invention

[0012] The present invention provides a peak closed condensing cooling device with water-saving, energy-saving and mist-eliminating functions, which is used to solve the problems of white mist pollution, water resource waste and high operating energy consumption of the existing evaporative condensing cooler proposed in the above background technology.

[0013] The technical solution adopted by the present invention is: a peak closed condensing cooling device with water-saving, energy-saving and fog-eliminating functions, comprising a box body, wherein an air mixing chamber is provided at the upper position of the inner cavity of the box body; The inner cavity of the box is connected in sequence to a demisting module, a resistance-reducing louver, and a water distribution device. The demisting module divides the lower inner cavity of the box into a first cavity and a second cavity. The demisting module has a cold air channel and a hot air channel respectively connected to the air mixing chamber, and the first cavity is connected to the cold air channel, and the second cavity is connected to the hot air channel. An evaporation coil is installed in the second cavity near the side wall of the box, and water dripping from the water distribution device can fall on the heat exchange wall surface of the evaporation coil; It also includes a spike device, which is arranged in the inner cavity of the box and is located directly above the water distribution device; The first cavity, the second cavity, and the peak device are each provided with an openable and closable ventilation component near the side wall of the box. When each ventilation component is opened: The air flows along the first cavity and passes through the cold air channel of the demisting module into the air mixing chamber; After the air passes through the evaporating coil along the second cavity for heat exchange, it enters the air mixing chamber from the hot air channel of the defogging module. When the resistance reduction louvers are opened, part of the heat exchanged air enters the air mixing chamber through the resistance reduction louvers. The air enters the inner cavity along the side wall of the box and enters the air mixing chamber after passing through the spike device.

[0014] The present invention also includes a water supply system, which includes a circulating water tank installed at the bottom of the box body, a circulating water pump installed on the circulating water tank, and an upper water pipe connected to the output end of the circulating water pump. The upper water pipe is divided into two routes, one of which is connected to the spraying device above the spike device and is configured to spray water on the spike device, and the other is connected to the water distribution device and is configured to allow water droplets to be sprinkled on the evaporation coil below. Regulating valves are respectively installed on the two water pipes.

[0015] A sedimentation tank is provided at the bottom of the circulating water tank.

[0016] A condensed water recovery tray is provided at the bottom of the box body in the second cavity, and the condensed water recovery tray is connected to the circulating water tank.

[0017] Both ends of the evaporating coil are respectively provided with a medium inlet and a medium outlet extending to the outside of the box.

[0018] A water collector is provided above the resistance-reducing louver.

[0019] The cross section of the mist elimination module is a diamond structure, with a partition connected to the bottom thereof, and the end of the partition is fixed to the bottom of the box.

[0020] An induced draft fan is installed on the top of the box.

[0021] The ventilation components that can be opened and closed are: A new cold air louver is provided on the side wall of the box body close to the first cavity; an antifreeze shutter, which is arranged on the side wall of the box body near the second cavity; a peak shutter, which is arranged on the side wall of the box near the peak device; Among them, the above three shutters and the resistance reduction shutter are any one of manual shutters, pneumatic shutters, and electric shutters.

[0022] The beneficial effects of the present invention are: 1. The present invention has a peak function: the peak device can be activated under high temperature conditions in summer, effectively enhancing the cooling capacity of the system, ensuring stable operation of the equipment under high load conditions, and ensuring that the equipment can smoothly pass the summer.

[0023] 2. The present invention has a defogging function: the hot and humid air at the outlet of the evaporating coil is partially condensed by the diamond-shaped defogging filler, and the condensed hot and humid air is mixed with the cold air after heat exchange, and its moisture content, relative humidity and temperature are reduced. It is then discharged into the atmosphere and comes into contact with the ambient low-temperature air, which makes it less likely to produce white fog.

[0024] 3. The present invention is more water-saving: on the one hand, the peak device is shut down in the non-peak season and the peak shutter is closed. At this time, no spray water and air pass through the peak device, and there is no evaporation of spray water in the peak device; on the other hand, in the demisting mode, the hot and humid air at the outlet of the evaporative coil is partially condensed and recycled for a second time through the diamond-shaped demisting filler, thereby achieving the purpose of saving water.

[0025] 4. The present invention is more energy-efficient: on the one hand, during the non-peak season, the ambient temperature is low, and the heat exchange demand can be met by the evaporative coil alone. At this time, the peak device is shut down and the peak shutters are closed, so no air passes through the peak device, thereby avoiding waste of air volume and reducing the operating energy consumption of the fan; on the other hand, during the non-defog season, the resistance-reducing shutters are fully opened, and their own wind resistance is small. Part of the hot and humid air at the outlet of the evaporative condenser cooler is discharged from the equipment through the resistance-reducing shutters, and the pressure drop of the whole machine is small, thereby achieving the purpose of energy saving.

[0026] 5. The present invention has a self-antifreeze function. After all the shutters are closed, the induced draft fan will not generate suction, the medium in the evaporating coil retains heat, and a greenhouse can be formed inside the equipment, which is beneficial to the antifreeze of the equipment and ensures that the equipment can survive the winter smoothly.

[0027] 6. When the peak device of the present invention is shut down during the non-peak season, there is ample time for overhaul, cleaning and maintenance, and the impact on normal production operation is small, thus avoiding equipment downtime.

[0028] 7. The present invention has high heat exchange efficiency. By adjusting the opening of the peak shutter and the antifreeze shutter, the air volume required by the peak device and the evaporating coil is reasonably distributed, thereby achieving the best heat exchange effect.

[0029] 8. The sunken sedimentation tank provides a dirt accumulation area for centralized sewage discharge, reduces the operating weight of the equipment, and increases the liquid level at the suction port of the circulating water pump, reducing the risk of cavitation.

[0030] 9. The present invention can use one machine for multiple purposes, and different functions can be reasonably used in different application scenarios, eliminating waste and achieving optimization and integration of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a side view of the present invention; Figure 2 is a schematic diagram of the summer peak operation mode of the present invention; Figure 3 Schematic diagram of the spring and autumn operation modes of the present invention; Figure 4 Schematic diagram of the winter fog elimination operation mode of the present invention; Figure 5 Schematic diagram of the antifreeze mode of the present invention; Figure 6 It is the thermodynamic curve diagram of condensation recovery and defogging of the present invention.

[0032] in: 1. Box body; 101. Air mixing chamber; 102. First cavity; 103. Second cavity; 2. Peak shutter; 3. Antifreeze shutter; 4. Sedimentation tank; 5. Medium outlet; 6. Medium inlet; 7. Regulating valve 1; 8. Water supply pipe; 9. Induced draft fan; 10. Demisting module; 11. Fresh cold air shutter; 12. Partition; 13. Condensate recovery tray; 14. Water collector; 15. Resistance reduction shutter; 16. Circulating water pump; 17. Circulating water tank; 18. Evaporating coil; 19. Water distribution device; 20. Peak device; 21. Regulating valve 2. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] As shown in the figure, a peak closed condensing cooling device with water-saving, energy-saving and mist-eliminating functions includes a housing 1, an air mixing chamber 101 is provided at the upper portion of the inner cavity of the housing 1, and an induced draft fan 9 is installed on the top of the housing 1. When the induced draft fan 9 is in operation, the air in the air mixing chamber 101 can be sucked upward and discharged upward from the position of the induced draft fan 9; The inner cavity of the box body 1 is connected with the demisting module 10, the resistance reducing louver 15 and the water distribution device 19 in sequence. The water collector 14 is provided above the resistance reducing louver 15. The demisting module 10 divides the lower inner cavity of the box body 1 into a first cavity 102 and a second cavity 103. The demisting module 10 has a cold air channel and a hot air channel respectively connected to the air mixing chamber 101, and the first cavity 102 is connected to the cold air channel, and the second cavity 103 is connected to the hot air channel. Specifically, the cross section of the demisting module 10 is a diamond structure. A partition 12 is connected to the bottom, and the end of the partition 12 is fixed to the bottom of the box body 1. The demisting module 10 extends from one end to the other end in the box body 1. The cold air channel and the hot air channel inside it are connected at the position of the air mixing chamber 101 above, and the cold air channel and the hot air channel are separated by the partition 12 below. The demisting module 10 is specifically a diamond-shaped demisting filler made of PVC, fiberglass, aluminum alloy or stainless steel. Its internal structure and principle belong to the conventional settings in the prior art and will not be described in detail here. An evaporating coil 18 is installed in the second cavity 103 near the side wall of the housing 1. Water dripping from the water distribution device 19 can fall on the heat exchange surface of the evaporating coil 18. The evaporating coil 18 has a medium inlet 6 and a medium outlet 5 at both ends extending to the outside of the housing 1. The evaporating coil 18 is used to carry the cooled medium and achieves efficient condensation and heat exchange through the combined action of spraying water and circulating air. Specifically, the internal heat exchange components of the evaporating coil 18 can be tube-type, plate-type, tube-fin-type, or plate-fin-type structures. It also includes a spike device 20, which is arranged in the inner cavity of the box body 1 and is located directly above the water distribution device 19; The first cavity 102, the second cavity 103, and the peak device 20 are respectively provided with openable and closable ventilation components at positions close to the side walls of the box body 1. When the respective ventilation components are opened: The air flows along the first cavity 102 and passes through the cold air channel of the demisting module 10 into the air mixing chamber 101; After the air passes through the evaporating coil 18 along the second cavity 103 and exchanges heat, it enters the air mixing chamber 101 from the hot air channel of the defogging module 10. When the resistance reducing louvers 15 are opened, part of the heat-exchanged air passes through the resistance reducing louvers 15 and enters the air mixing chamber 101. The air enters the inner cavity along the side wall of the box body 1 and enters the air mixing chamber 101 after passing through the spike device 20; Specifically, the ventilation components that can be opened and closed are: A new cold air louver 11 is provided on the side wall of the housing 1 near the first cavity 102; Antifreeze shutters 3, which are arranged on the side wall of the box body 1 near the second cavity 103; a peak shutter 2 , which is arranged on the side wall of the box 1 near the peak device 20 ; The three shutters and the resistance-reducing shutter 15 are any one of manual shutters, pneumatic shutters, and electric shutters.

[0035] The water supply system also includes a circulating water tank 17 installed at the bottom of the box body 1, and a circulating water pump 16 is installed on the circulating water tank 17. The output end of the circulating water pump 16 is connected to an upper water pipe 8, and the upper water pipe 8 is divided into two routes. One route is connected to the spraying device above the peak device 20 (wherein the spraying device is a combination structure of a water distribution tray + a gravity water distribution nozzle above the peak device 20), which is configured to spray water on the peak device 20, and the other route is connected to the water distribution device 19, which is configured to allow water droplets to be sprinkled on the evaporation coil 18 below. Regulating valves are respectively installed on the two water pipes 8. In this example, the regulating valve of the upper water pipe 8 connected to the spraying device is regulating valve 17, and the regulating valve of the upper water pipe 8 connected to the water distribution device 19 is regulating valve 2 21. The above-mentioned spraying device and water distribution device 19 are conventional technologies used for heat exchange equipment in the prior art and will not be elaborated on here.

[0036] A sedimentation tank 4 is provided at the bottom of the circulating water tank 17. The sedimentation tank 4 is designed as a sunken structure. Specifically, a support frame is installed below the box body 1. The circulating water tank 17, the circulating water pump 16 and the sedimentation tank 4 are all arranged in the support frame.

[0037] A condensed water recovery tray 13 is provided at the bottom of the box body 1 in the second cavity 103. The condensed water recovery tray 13 is connected to the circulating water tank 17 and is used to centrally recover the condensed water and introduce it into the circulating water tank 17 to achieve a water-saving effect.

[0038] Now combined Figure 1 、 Figure 2The energy-saving principle of the present invention in the summer peak operating mode is explained below: During the summer peak operating mode, the peak louvers 2, antifreeze louvers 3, and drag-reducing louvers 15 are open, and the fresh cold air louvers 11 are closed; regulating valve 1 7 is open, and regulating valve 2 21 is closed. Under the action of the induced draft fan 9, ambient air passes through the peak louvers 2 and enters the peak device 20, cooling the spray water. Under the action of gravity, the cooled spray water falls to the water distribution device 19 of the evaporating coil 18. After a second distribution by the water distribution device 19, it drips onto the heat exchange surface of the evaporating coil 18. The lower spray water temperature improves the heat exchange efficiency of the evaporating coil 18, thus reducing the peak flow. Simultaneously, ambient air passes through the antifreeze louvers 3 and enters the evaporating coil 18 for heat exchange. The humid hot air after heat exchange then passes through the hot air channel of the diamond-shaped defogging packing, the drag-reducing louvers 15, and the water collector 14 into the air mixing chamber 101. Finally, the induced draft fan 9 exhausts the humid hot air into the atmosphere. During this process, the peak device 20 cools the spray water, which plays a role in peak shaving; part of the humid and hot air at the outlet of the evaporating coil 18 is discharged into the atmosphere through the resistance reducing louver 15, and the resistance reducing louver 15 plays a role in reducing the wind resistance of the whole machine and saving energy; part of the humid and hot air at the outlet of the evaporating coil 18 is discharged into the atmosphere through the hot air channel of the diamond-shaped defogging module 10, and the diamond-shaped defogging module 10 plays a role in collecting water.

[0039] Now combined Figure 1 、 Figure 3 The water-saving and energy-saving principles of the present invention in the spring and autumn operating modes are explained: During the spring and autumn operating modes, the ambient temperature is low, and the evaporation coil 18 alone can meet the heat exchange requirements. The peak louver 2 is closed, the antifreeze louver 3 and the resistance-reducing louver 15 are open, and the new cold air louver 11 is closed; the regulating valve 1 7 is closed, and the regulating valve 2 21 is open. Under the action of the induced draft fan 9, all ambient air passes through the antifreeze louver 3 and enters the evaporation coil 18 for heat exchange. The hot and humid air after heat exchange then passes through the hot air channel of the diamond-shaped demisting module 10, the resistance-reducing louver 15, and the water collector 14 into the mixed air chamber 101. Finally, the induced draft fan 9 exhausts the hot and humid air into the atmosphere. During this process, part of the humid and hot air at the outlet of the evaporating coil 18 is discharged into the atmosphere through the resistance-reducing louver 15, which reduces the wind resistance of the entire machine and saves energy; part of the humid and hot air at the outlet of the evaporating coil 18 is discharged into the atmosphere through the hot air channel of the diamond-shaped demisting module 10, which collects water; at the same time, due to the closure of the peak louver 2 and the regulating valve 7, the peak device 20 is in a shutdown state and has no heat exchange task, which avoids a large amount of wind waste and evaporation consumption of spray water, thereby achieving the purpose of saving water and energy.

[0040] Now combined Figure 1 、 Figure 4The principle of fog removal in the winter fog removal mode of the present invention is explained below: In winter fog removal mode, the ambient temperature is low, making white fog more likely to form. Peak shutter 2 is closed, antifreeze shutter 3 is open, resistance reduction shutter 15 is closed, and fresh cold air shutter 11 is open. Control valve 1 7 is closed, and control valve 2 21 is open. Due to the low ambient temperature, the air volume required for evaporative heat exchange is small, and the fan pressure head of the equipment can meet the heat exchange requirements. At this time, the hot and humid air at the outlet of the evaporating coil 18 all flows through the hot air channel of the diamond demisting module 10. The excess fan pressure head provides power and introduces new cold air from the environment through the new cold air louvers 11. The new cold air passes through the cold air channel of the diamond demisting module 10 and the hot and humid air in the hot air channel of the diamond demisting module 10 for inter-wall heat exchange. The hot and humid air in the hot air channel of the diamond demisting module 10 is condensed and condensed water is precipitated. The condensed water falls back to the condensed water recovery tray 13, and under the action of gravity, it flows back to the circulating water tank 17 for secondary utilization, thereby achieving the purpose of saving water. The hot and humid air and the new cold air that have passed through the heat exchange between the walls of the diamond-shaped mist elimination modules 10 are mixed in the air mixing chamber 101 under the action of the equipment's induced draft fan 9. Compared with the original nearly saturated hot and humid air at the outlet of the evaporating coil 18, the mixed humid air has lower moisture content, lower relative humidity, and lower temperature, and is far away from the relative humidity line of 100%. It is then discharged into the atmosphere and comes into contact with the ambient low-temperature air, making it less likely to produce white fog.

[0041] Now combined Figure 1 、 Figure 5 The antifreeze mode of the present invention is described below: In this mode, the peak louvers 2, antifreeze louvers 3, drag-reducing louvers 15, and fresh cold air louvers 11 are closed; the induced draft fan 9 and circulating water pump 16 are turned off, and the spray water in the circulating water tank 17 is drained. The device can be removed from the system via a bypass, and the media within the device must be drained. The media can also flow through the evaporating coil 18, allowing the device to participate in system operation. Since the relevant louvers are closed, the induced draft fan 9 does not generate draft force, and the media in the evaporating coil 18 retains heat, creating a warm room inside the device, which helps prevent freezing.

[0042] Now combined Figure 4 、 Figure 6 The condensation recovery and mist elimination principle technology of the present invention is described in detail: The spray water evaporates on the heat exchange wall of the evaporating coil 18 and absorbs the heat of the medium, the air temperature rises, the relative humidity increases, and the relative humidity of the hot and humid air out of the evaporating coil 18 is close to 100%. Figure 6The thermodynamic state point of the hot and humid air at the outlet of the evaporating coil 18 is point A. The fresh cold air from the environment enters the shell through the fresh cold air louver 11. The fresh cold air and the hot and humid air at the outlet of the evaporating coil 18 undergo inter-wall heat exchange in the diamond-shaped demisting module 10. The hot and humid air at the outlet of the evaporating coil 18 is continuously cooled and condensed along the 100% equal relative humidity line, and condensed water is precipitated to point B. In the figure, △T is the temperature drop after the hot and humid air at the outlet of the evaporating coil 18 is partially condensed, and △D is the amount of condensed water precipitated after partial condensation, that is, the secondary water saving. The precipitated low-temperature condensed water falls back to the circulating water tank 17 and continues to be used for the spray cycle. The hot and humid air after heat exchange in the diamond-shaped demisting module 10 is mixed with the heated new cold air in the air mixing chamber 101, and the relative humidity and temperature are further reduced. The thermodynamic state point of the mixed air is point C, which is further away from the 100% equal relative humidity line. Under the action of induced draft fan 9, the mixed air is discharged into the atmosphere, where it mixes with the cool, dry ambient air at point N (as shown by the line connecting points C and N). This air is unlikely to intersect the 100% constant relative humidity line, thereby eliminating white mist. If the hot, humid air at the outlet of evaporating coil 18 is not condensed and recovered, its thermodynamic state is at a point such as point A. The line connecting points A and N intersects the 100% constant relative humidity line, creating a region called "W" where white mist is generated. White mist is more likely to form when the ambient air temperature is lower and the relative humidity is higher. The condensation recovery technology of the present invention effectively prevents white mist generation and recovers some of the condensed water, achieving both white mist elimination and water conservation.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A peak closed condensing cooling device with water-saving, energy-saving and fog-eliminating functions, characterized in that: It includes a box body, and an air mixing chamber is provided at the upper part of the inner cavity of the box body; The inner cavity of the box is connected in sequence to a demisting module, a resistance-reducing louver, and a water distribution device. The demisting module divides the lower inner cavity of the box into a first cavity and a second cavity. The demisting module has a cold air channel and a hot air channel respectively connected to the air mixing chamber, and the first cavity is connected to the cold air channel, and the second cavity is connected to the hot air channel. An evaporation coil is installed in the second cavity near the side wall of the box, and water dripping from the water distribution device can fall on the heat exchange wall surface of the evaporation coil; It also includes a spike device, which is arranged in the inner cavity of the box and is located directly above the water distribution device; The first cavity, the second cavity, and the peak device are each provided with an openable and closable ventilation component near the side wall of the box. When each ventilation component is opened: The air flows along the first cavity and passes through the cold air channel of the demisting module into the air mixing chamber; After the air passes through the evaporating coil along the second cavity for heat exchange, it enters the air mixing chamber from the hot air channel of the defogging module. When the resistance reduction louvers are opened, part of the heat exchanged air enters the air mixing chamber through the resistance reduction louvers. The air enters the inner cavity along the side wall of the box and enters the air mixing chamber after passing through the spike device.

2. A peak closed condensation cooling device with water-saving, energy-saving and mist-eliminating functions according to claim 1, characterized in that: It also includes a water supply system, which includes a circulating water tank installed at the bottom of the box body, a circulating water pump installed on the circulating water tank, and an upper water pipe connected to the output end of the circulating water pump. The upper water pipe is divided into two routes, one is connected to the spray device above the spike device, and is configured to spray water on the spike device, and the other is connected to the water distribution device, and is configured to allow water droplets to be sprinkled on the evaporation coil below. Regulating valves are respectively installed on the two water pipes.

3. A peak closed condensation cooling device with water-saving, energy-saving and mist-eliminating functions according to claim 2, characterized in that: A sedimentation tank is provided at the bottom of the circulating water tank.

4. The peak closed condensation cooling device with water-saving, energy-saving and mist-eliminating functions according to claim 2 is characterized in that: A condensed water recovery tray is provided at the bottom of the box body in the second cavity, and the condensed water recovery tray is connected to the circulating water tank.

5. The peak closed condensation cooling device with water-saving, energy-saving and fog-eliminating functions according to claim 1 is characterized in that: Both ends of the evaporating coil are respectively provided with a medium inlet and a medium outlet extending to the outside of the box.

6. The peak closed condensation cooling device with water-saving, energy-saving and mist-eliminating functions according to claim 1 is characterized in that: A water collector is provided above the resistance-reducing shutter.

7. The peak closed condensation cooling device with water-saving, energy-saving and mist-eliminating functions according to claim 1 is characterized in that: The cross section of the mist elimination module is a diamond structure, with a partition connected to the bottom, and the end of the partition is fixed to the bottom of the box.

8. The peak closed condensation cooling device with water-saving, energy-saving and mist-eliminating functions according to claim 1 is characterized in that: An induced draft fan is installed on the top of the box.

9. The peak closed condensation cooling device with water-saving, energy-saving and mist-eliminating functions according to claim 1 is characterized in that: The ventilation components that can be opened and closed are: A new cold air louver is provided on the side wall of the box body close to the first cavity; an antifreeze shutter, which is arranged on the side wall of the box body near the second cavity; a peak shutter, which is arranged on the side wall of the box near the peak device; Among them, the above three shutters and the resistance reduction shutter are any one of manual shutters, pneumatic shutters, and electric shutters.

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