Water and energy saving type fog dispersing device
By designing a diamond-shaped defogging module and a louver structure inside the housing, the water and energy consumption problems of the evaporative cooling condenser were solved, achieving water and energy saving effects and reducing the risk of white fog formation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGHUA TECHNOLOGY GROUP (LUOYANG) CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
AI Technical Summary
Existing evaporative cooling condensers consume a lot of water and are prone to white fog pollution during winter operation. Existing defogging devices have low ventilation efficiency, high resistance, and high energy consumption during summer operation.
Design a water-saving and energy-efficient defogging device, including a diamond-shaped defogging module, drag-reducing louvers, and airflow distribution louvers inside the housing. By adjusting the opening mode of the louvers in different seasons, the device can achieve mixing and condensation of humid and hot air with fresh air, recover condensate, and optimize the duct structure to reduce wind resistance.
It achieves water savings of 10-40%, reduces the risk of white fog formation, saves more than 10% energy in summer, and optimizes the operating efficiency and energy consumption of evaporative cooling condensers.
Smart Images

Figure CN224415806U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of evaporative cooling and condensation equipment, specifically relating to a water-saving and energy-saving defogging device. Background Technology
[0002] An evaporative cooling condenser is a device that uses the evaporation and heat absorption of sprayed water to remove heat from the medium, thereby achieving the required temperature for the medium. Sprayed water is applied to the heat exchange module through nozzles, forming a water film on the wall of the heat exchange module. Under the action of a fan, the sprayed water film evaporates and absorbs heat, removing the heat from the target medium.
[0003] Since it relies on the evaporation of sprayed water for heat exchange, the relative humidity of the air outlet of the evaporative cooling condenser is close to saturation, that is, the moisture content of the air increases, and water resources need to be continuously consumed.
[0004] The evaporation of large amounts of water also brings the following negative consequences:
[0005] 1) Wasting water resources, especially in water-scarce regions such as the Northwest, this problem is particularly prominent.
[0006] 2) High water consumption and rapid concentration of spray water increase the difficulty of wastewater treatment.
[0007] 3) During winter operation, the nearly saturated humid and hot air at the outlet of the evaporative cooling condenser mixes with the dry and cold air in the environment, forming white mist, or small water droplets. This causes visual pollution and can also lead to corrosion and icing damage when the white mist drips onto surrounding equipment and maintenance passages.
[0008] Existing defogging devices add a diamond-shaped defogging module to the upper part of the equipment. When operating in winter, cold air is introduced through a bypass. The cold air mixes and condenses with the nearly saturated humid and hot air at the outlet of the evaporative cooling condenser, reducing its moisture content.
[0009] However, it has the following negative consequences when used in summer:
[0010] 1) Due to the special structure of the diamond-shaped defogging module, the ventilation area of the evaporative cooling condenser is reduced by about 30%.
[0011] 2) The diamond-shaped defogging module itself also has considerable resistance.
[0012] Two factors contribute to insufficient fan pressure and airflow. When designing an evaporative cooling condenser, the only solution is to increase the fan power, resulting in high energy consumption during equipment operation. Utility Model Content
[0013] This invention provides a water-saving and energy-efficient defogging device to solve the problems mentioned in the background art, such as the large water consumption of existing evaporative cooling condensers, the tendency to form white fog pollution during winter operation, and the low ventilation efficiency, high resistance, and high energy consumption of existing defogging devices during summer operation.
[0014] The technical solution adopted by this utility model is: a water-saving and energy-saving defogging device, including a box, a defogging module with a rhomboid cross-section is provided in the box, the defogging module extends from the inner wall of one side of the box to the inner wall of the other side; a partition is connected to the lower end of the defogging module, the partition extends downward and is fixed to the bottom wall of the box, so that the defogging module, the partition, the side wall of the box and the bottom wall together form a first cavity;
[0015] The side and bottom of the box located in the first cavity are respectively equipped with fresh cold air louvers and airflow distribution louvers;
[0016] The middle of the box is equipped with a drag-reducing louver, one end of which is connected to the inner wall of the box, and the other end is connected to the anti-fogging module. The drag-reducing louver, the anti-fogging module, the partition, the side wall and the bottom wall of the box together form a second cavity.
[0017] The enclosure includes a main frame and a shell mounted on the main frame.
[0018] The main frame includes a base frame, corner columns, central columns, and bracing. The corner columns are installed upright at the four corners of the base frame, the central columns are installed upright in the middle of the base frame, and the bracing is connected to the upper ends of the two central columns.
[0019] The system also includes a third cavity, which is located inside the housing and above the defogging module and the drag-reducing louvers. The third cavity is connected to the air outlet at the top of the housing.
[0020] The defogging module has a first channel for connecting the first cavity and the third cavity, and a second channel for connecting the second cavity and the third cavity. The first channel and the second channel are not connected to each other within the defogging module.
[0021] The defogging module is installed inside the box via a support frame.
[0022] The three vertices of the rhombus-shaped anti-fog module are connected to the inner wall of the box, the drag-reducing louvers, and the partition, respectively.
[0023] The beneficial effects of this utility model are as follows:
[0024] 1. The structure of this utility model is simple, which allows the near-saturated hot and humid air at the equipment outlet to mix with fresh air, condense, and precipitate condensate water, which then falls back into the equipment for secondary recycling, thereby achieving the purpose of water saving. In actual use, it can save 10-40% of water.
[0025] 2. This utility model has a good effect on eliminating white fog; the near-saturated hot and humid air at the equipment outlet is mixed with fresh air, which reduces the moisture content and temperature, and then comes into contact with the dry and cold air in the environment, making it less likely to produce white fog.
[0026] 3. When this utility model is running in summer, the ambient temperature is high and no white fog will be produced. At this time, the drag-reducing louvers and airflow distribution louvers are open, and the fresh cold air louvers are closed. The hot air channel and cold air channel of the diamond-shaped anti-fog packing can both serve as flow channels for hot and humid air, increasing the flow area of hot and humid air at the outlet of the evaporative cooling condenser. At the same time, due to the full opening of the drag-reducing louvers and their low wind resistance, some of the hot and humid air at the outlet of the evaporative cooling condenser is discharged from the equipment through the drag-reducing louvers, resulting in a small overall pressure drop and thus achieving energy saving, specifically more than 10% energy saving. Attached Figure Description
[0027] Figure 1 This is a perspective view of the present utility model;
[0028] Figure 2 This is a diagram of the internal structure of this utility model.
[0029] in:
[0030] 1. Housing; 101. Corner column; 102. Shell; 103. Tensioner; 104. Central column; 105. Base frame; 2. Defogging module; 3. Fresh air louver; 4. Airflow distribution louver; 5. Partition; 6. Drag-reducing louver; 7. First cavity; 8. Second cavity; 9. Third cavity; 10. Air outlet; 11. Support frame. Detailed Implementation
[0031] 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 protection scope of the present utility model.
[0032] As shown in the figure, a water-saving and energy-efficient defogging device includes a housing 1. Specifically, the housing 1 includes a main frame and a shell 102 installed on the main frame. The main frame includes a bottom frame 105, corner columns 101, central columns 104, and bracing 103. The corner columns 101 are installed upright at the four corners of the bottom frame 105, and the central columns 104 are installed upright in the middle of the bottom frame 105. The bracing 103 is connected to the upper ends of the two central columns 104. More specifically, the shell 102 is made of non-metallic materials such as fiberglass or metallic materials such as galvanized steel, magnesium aluminum zinc plate, aluminum alloy, and stainless steel. The bottom frame 105, corner columns 101, central columns 104, and bracing 103 can be made of angle iron, square tube, aluminum alloy profile, etc. The connection between adjacent parts can be fixed by welding, bolting, etc., thereby forming a housing 1 structure that is a cuboid or cube.
[0033] The housing 1 contains a defogging module 2 with a rhomboid cross-section. This defogging module 2 is a defogging filler with a rhomboid cross-section, which is a filler structure used to reduce or eliminate white fog. It has a first channel connecting the first cavity 7 and the third cavity 9, and a second channel connecting the second cavity 8 and the third cavity 9. The first channel and the second channel are not interconnected within the defogging module 2. Specifically, in actual operation, the first cavity 7 serves as a cold air channel, and the second cavity 8 serves as a hot air channel. This can induce the cold air and the humid and hot air to mix and condense fully, reducing the moisture content of the humid and hot air in the outlet, and causing water droplets to fall back into the equipment, reducing the risk of drift and ice formation. The specific structure and principle of the defogging module 2 are conventional designs in the existing technology and will not be described in detail here.
[0034] The defogging module 2 extends from one inner wall of the housing 1 to the other inner wall; the lower end of the defogging module 2 is connected to a partition 5, which extends downward and is fixed to the bottom wall of the housing 1, so that the defogging module 2, the partition 5, the side wall and the bottom wall of the housing 1 together form the first cavity 7.
[0035] The side and bottom of the box 1 located in the first cavity 7 are respectively provided with fresh cold air louvers 3 and airflow distribution louvers 4;
[0036] The middle part of the box 1 is provided with a drag-reducing louver 6, one end of which is connected to the inner wall of the box 1 and the other end is connected to the anti-fog module 2. The drag-reducing louver 6, the anti-fog module 2, the partition 5, the side wall and the bottom wall of the box 1 together form a second cavity 8.
[0037] Among them, the new cold air louver 3, the airflow distribution louver 4, and the drag-reducing louver 6 can all be controlled manually, pneumatically, or electrically.
[0038] The system also includes a third cavity 9, which is located inside the housing 1 and above the defogging module 2 and the drag-reducing louver 6. The third cavity 9 is connected to the air outlet 10 at the top of the housing 1.
[0039] The defogging module 2 is installed inside the housing 1 via a support frame 11, which is used to improve the stability of the installation structure of the defogging module 2 inside the housing 1.
[0040] The three vertices of the rhombus-shaped anti-fog module 2 are respectively connected to the inner wall of the housing 1, the drag-reducing louver 6, and the partition 5, as shown below. Figure 2 As shown, the structure of the entire defogging module 2 inside the housing 1 is as follows: two of the rhombus diagonals are roughly horizontal, and the other two diagonals are vertical.
[0041] When this water-saving and energy-saving defogging device is in operation, it is located above the evaporative cooling condenser. A fan is installed at the air outlet 10 to draw air. The hot and humid air generated at the outlet of the evaporative cooling condenser can directly enter the second cavity 8. Furthermore, when the airflow distribution louvers 4 are open, the hot and humid air can also enter the first cavity 7.
[0042] During summer operation, the high ambient temperature prevents the formation of white fog. With the drag-reducing louvers 6 open, the airflow distribution louvers 4 open, and the fresh air louvers 3 closed, a portion of the hot, humid air from the evaporative cooling condenser outlet passes through the airflow distribution louvers 4, then through the cold air passage of the defogging module 2 before being discharged into the atmosphere; another portion passes through the hot air passage of the defogging module 2 before being discharged into the atmosphere; and the remaining portion is directly discharged into the atmosphere through the drag-reducing louvers 6. Since both the hot and cold air passages of the defogging module 2 can serve as channels for hot, humid air, the flow area of the hot, humid air at the evaporative cooling condenser outlet is increased. Simultaneously, due to the full opening of the drag-reducing louvers 6 and their low air resistance, a portion of the hot, humid air from the evaporative cooling condenser outlet is discharged through the drag-reducing louvers 6, thereby reducing the overall pressure drop of the equipment, ensuring its heat exchange performance, and achieving energy savings.
[0043] During winter operation, the low ambient temperature easily leads to the formation of white fog. With the drag-reducing louvers 6 and 4 closed, and the fresh air louvers 3 open, the low ambient temperature reduces the airflow required for heat exchange in the evaporative cooling condenser. The fan head of the equipment is sufficient for heat exchange. At this time, all the hot and humid air from the evaporative cooling condenser outlet flows through the hot air channel of the defogging module 2. Excess fan head provides power to introduce fresh, cool ambient air through the fresh air louvers 3. This fresh air undergoes heat exchange with the hot and humid air in the hot air channel of the defogging module 2, causing the hot and humid air to condense and release condensate. The condensate falls back into the equipment for secondary recycling, thus achieving water conservation. The humid air and fresh cold air that have passed through the heat exchange between the two walls of the defogging module are mixed by the equipment's induced draft fan. Compared to the nearly saturated humid air at the outlet of the evaporative cooling condenser, the mixed humid air has a lower moisture content, lower relative humidity, and lower temperature, and is further away from the 100% relative humidity line. When it is discharged into the atmosphere and comes into contact with the low-temperature ambient air, it is less likely to produce white fog.
[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water-saving and energy-efficient defogging device, characterized in that, The enclosure includes a housing, inside which is a defogging module with a rhomboid cross-section. The defogging module extends from one inner wall of the housing to the other inner wall. A partition is connected to the lower end of the defogging module. The partition extends downward and is fixed to the bottom wall of the housing, so that the defogging module, the partition, the side wall of the housing, and the bottom wall together form a first cavity. The side and bottom of the box located in the first cavity are respectively equipped with fresh cold air louvers and airflow distribution louvers; The middle of the box is equipped with a drag-reducing louver, one end of which is connected to the inner wall of the box, and the other end is connected to the anti-fogging module. The drag-reducing louver, the anti-fogging module, the partition, the side wall and the bottom wall of the box together form a second cavity.
2. The water-saving and energy-efficient defogging device according to claim 1, characterized in that, The enclosure consists of a main frame and a shell mounted on the main frame.
3. The water-saving and energy-efficient defogging device according to claim 2, characterized in that, The main frame includes a base frame, corner columns, central columns, and bracing. The corner columns are installed upright at the four corners of the base frame, the central columns are installed upright in the middle of the base frame, and the bracing is connected to the upper ends of the two central columns.
4. The water-saving and energy-efficient defogging device according to claim 1, characterized in that, It also includes a third cavity, which is located inside the housing and above the defogging module and the drag-reducing louvers. The third cavity is connected to the air outlet at the top of the housing.
5. The water-saving and energy-efficient defogging device according to claim 4, characterized in that, The defogging module has a first channel for connecting the first cavity and the third cavity, and a second channel for connecting the second cavity and the third cavity. The first channel and the second channel are not connected to each other within the defogging module.
6. The water-saving and energy-efficient defogging device according to claim 1, characterized in that, The defogging module is installed inside the housing via a support frame.
7. The water-saving and energy-efficient defogging device according to claim 1, characterized in that, The three vertices of the rhombus-shaped defogging module are connected to the inner wall of the box, the drag-reducing louvers, and the partition, respectively.