Novel countercurrent open type cooling tower
By introducing an inclined heat exchange structure, multiple air inlets, and multiple spray mechanisms into the counter-flow open cooling tower, the problems of water loss and temperature adaptability caused by direct contact between water and air are solved, achieving efficient cooling and energy-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI WANHENG HEAT TRANSFER TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-12
AI Technical Summary
Existing counter-flow open cooling towers suffer from increased water loss due to direct contact between water and air, and the inability to adjust the tower's operation according to changes in external temperature, thus affecting cooling efficiency and water resource utilization.
A novel counter-flow open cooling tower was designed, which adopts an inclined heat exchange structure and a multi-inlet system, combined with a multi-spray mechanism and a fan. The cooling process is adjusted according to changes in the external temperature to ensure that water and air do not come into direct contact. Cold air is introduced for cooling through multiple air inlets, and vertical and horizontal baffles prevent water from splashing and improve heat exchange efficiency.
It effectively reduces moisture loss, eliminates white fog, improves cooling efficiency and energy saving, and can automatically adjust its operation according to changes in external temperature to ensure stable equipment operation.
Smart Images
Figure CN224230765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooling tower technology, specifically a novel counter-flow open cooling tower. Background Technology
[0002] A counter-flow open cooling tower is a type of cooling equipment mainly used to cool and reduce the temperature of hot water so that it can be recycled. It is widely used in industrial production and central air conditioning systems.
[0003] In the existing technology, the working process of a cooling tower is as follows: outside air enters the cooling tower through the air inlet under the action of a fan, and hot and humid water is sprayed into the cooling tower from the spray head. The water and air come into direct contact, and the evaporation carries away the heat of the water, thereby achieving cooling water cooling. However, the direct contact between water and air for heat exchange increases water loss, and the cooling tower cannot be adjusted according to different outside temperatures, which is not conducive to saving water resources. Utility Model Content
[0004] In order to solve the problems in related technologies, this utility model provides a novel counter-flow open cooling tower. This device solves the problem of water and air coming into direct contact, generating white mist and increasing water loss. It also solves the problem of not being able to adjust the cooling tower operation process according to changes in external temperature.
[0005] To solve the above problems, the following technical solutions are provided:
[0006] This utility model discloses a novel counter-flow open cooling tower, comprising a tower body, a first air inlet located on the lower part of the outer wall of one side of the tower body, a heat exchange structure located in the middle of the tower body, the heat exchange structure being arranged at an inclination, a gas passage and a water passage being provided within the heat exchange structure, the gas passage and the water passage being isolated from each other; a first spray mechanism located inside the tower body above the heat exchange structure, an air outlet located at the top of the tower body, a fan being installed inside the air outlet, and a water collection tank located at the bottom of the tower body.
[0007] In the above-described solution, by setting up a heat exchange structure, during seasons with suitable ambient temperatures such as spring and autumn, only the first spray mechanism needs to be activated. Hot water is evenly sprayed from the first spray mechanism and flows downward into the water passage of the heat exchange structure. At the same time, cold air from outside, driven by a fan, rushes into the tower from the first air inlet and flows upward along the gas passage of the heat exchange structure, making full contact with the hot water in the water passage. Through efficient heat exchange, the hot water is effectively cooled. When the ambient temperature rises significantly, such as in summer, the first and second spray mechanisms will be activated simultaneously. At this time, under the suction of the fan, the first and second air inlets work together, and a large amount of cold air rushes into the tower, cooling the hot water sprayed by the first and second spray mechanisms respectively. This solves the problem of large water loss caused by direct contact between water and air in traditional cooling towers. When water and air do not come into direct contact, white mist is effectively eliminated. Furthermore, the cooling tower's ability to adjust its internal operating process according to changes in external temperature greatly improves cooling efficiency and energy saving.
[0008] A second air inlet is provided on the outer wall of the tower body on the other side corresponding to the first air inlet, and a second spraying mechanism is also provided inside the tower body above the heat exchange structure; the first spraying mechanism is located above the second air inlet, and the second spraying mechanism is located above the first air inlet.
[0009] In the above solution, by setting up a second air inlet and turning on the fan, the first and second air inlets simultaneously introduce outside cold air into the cooling tower, thereby cooling the hot water sprayed by the first and second spraying mechanisms, significantly improving cooling efficiency and ensuring more stable and energy-saving equipment operation.
[0010] Vertical partitions are provided between the two ends of the vertical diagonal of the heat exchange structure and the inner wall of the tower, and horizontal partitions are provided between the two ends of the horizontal diagonal of the heat exchange structure and the inner wall of the tower.
[0011] The above scheme effectively prevents hot water from splashing everywhere by setting up vertical and horizontal partitions, so that hot water can flow into the heat exchange structure, which is conducive to improving heat exchange efficiency.
[0012] The heat exchange structure has its upper and lower edges abutting against the vertical partitions, its side edges abutting against the horizontal partitions, and its front and rear end faces abutting against the inner walls of the tower body. The heat exchange structure divides the tower body into four chambers. The chamber at the lower end of the heat exchange structure near the first air inlet is the first cavity, the chamber at the lower end of the heat exchange structure near the second air inlet is the second cavity, the chamber at the upper end of the heat exchange structure near the first spray mechanism is the first heat exchange chamber, and the chamber at the upper end of the heat exchange structure near the second spray mechanism is the second heat exchange chamber. The first cavity is connected to the first heat exchange chamber, and the second cavity is connected to the second heat exchange chamber.
[0013] With the above scheme, the water sprayed by the first spraying mechanism flows from the first heat exchange chamber through the heat exchange structure to the first cavity, and the water sprayed by the second spraying mechanism flows from the second heat exchange chamber through the heat exchange structure to the second cavity.
[0014] A water collector is installed above the first spraying mechanism and the second spraying mechanism.
[0015] The above scheme uses a water collector to collect water droplets carried by the air inside the cooling tower.
[0016] The first spraying mechanism includes a spray pipe with a plurality of spray heads. The first spraying mechanism and the second spraying mechanism are connected to an external water source. The second spraying mechanism has the same structure as the first spraying mechanism.
[0017] In the above scheme, the spray heads are used to evenly spray the hot water that needs heat exchange into the heat exchange structure.
[0018] The above solution has the following advantages:
[0019] 1. Due to the novel counter-flow open cooling tower of this utility model, in seasons with suitable ambient temperatures such as spring and autumn, only the first spray mechanism needs to be activated. Hot water is evenly sprayed from the first spray mechanism and flows downward into the water passage of the heat exchange structure. At the same time, cold air from the outside, driven by the fan, rushes into the tower body from the first air inlet and flows upward along the gas passage of the heat exchange structure, making full contact with the hot water in the water passage. Through efficient heat exchange, the hot water is effectively cooled. When the ambient temperature rises significantly, such as in summer, the first and second spray mechanisms will be activated simultaneously. At this time, under the suction of the fan, the first and second air inlets work together, and a large amount of cold air rushes into the tower, cooling the hot water sprayed by the first and second spray mechanisms respectively. This helps to reduce water loss. When water and air do not come into direct contact, white mist is effectively eliminated. Furthermore, the cooling tower's ability to adjust its internal operating process according to changes in the external temperature greatly improves cooling efficiency and energy saving.
[0020] 2. By setting up vertical and horizontal partitions, the hot water sprayed out can be effectively prevented from splashing, so that the hot water can flow into the heat exchange structure, which is conducive to improving the heat exchange efficiency. The water sprayed by the first spraying mechanism flows from the first heat exchange chamber through the heat exchange structure to the first cavity, and the water sprayed by the second spraying mechanism flows from the second heat exchange chamber through the heat exchange structure to the second cavity. Attached Figure Description
[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:
[0022] Figure 1 A schematic diagram of a novel counter-flow open cooling tower;
[0023] Figure 2 This is a cross-sectional view of a novel counter-flow open cooling tower.
[0024] Figure 3 This is a schematic diagram of the first spray mechanism in a novel counter-flow open cooling tower.
[0025] Figure 4 This is a schematic diagram of the operation of Example 1;
[0026] Figure 5 This is a schematic diagram of the operation of Example 2;
[0027] Figure 6 This is a schematic diagram of a heat exchange structure in a novel counter-flow open cooling tower.
[0028] Explanation of reference numerals in the attached drawings: 1. Tower body; 2. First air inlet; 3. Heat exchange structure; 4. First spray mechanism; 5. Air outlet; 6. Fan; 7. Water collection tank; 8. Second air inlet; 9. Second spray mechanism; 10. Vertical partition; 11. Horizontal partition; 12. First cavity; 13. Second cavity; 14. First heat exchange chamber; 15. Second heat exchange chamber; 16. Water collector; 17. Spray pipe; 18. Spray head. Detailed Implementation
[0029] 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.
[0030] In specific embodiment 1, such as Figures 1-3 As shown, a novel counter-flow open cooling tower of this utility model includes a tower body 1, and a first air inlet 2 is provided on the lower part of the outer wall of one side of the tower body 1, such as... Figure 6As shown, a heat exchange structure 3 is installed in the middle of the tower body 1. The heat exchange structure 3 is arranged at an angle and contains gas and water passages that are not interconnected. A first spray mechanism 4 is installed inside the tower body 1 above the heat exchange structure 3. Two air outlets 5 are located at the top of the tower body 1, each containing a fan 6. A water collection tank 7 is located at the bottom of the tower body 1, with water outlets on its outer wall. The heat exchange structure 3 is composed of several stacked heat exchange plates for accommodating packing material. By using the heat exchange structure 3, the second spray mechanism 9 is closed when the ambient temperature is low inside the cooling tower. Hot water flows through one side of the heat exchange structure 3, and cold air flows through the other side. Heat exchange occurs between the cold air and the hot water, cooling the hot water. Since the water and air do not directly contact each other, this reduces water consumption and helps eliminate white mist.
[0031] like Figure 2 As shown, a second air inlet 8 is provided on the outer wall of the tower body 1 on the other side corresponding to the first air inlet 2. A second spray mechanism 9 is also provided inside the tower body 1 above the heat exchange structure 3. The first spray mechanism 4 is located above the second air inlet 8, the second spray mechanism 9 is located above the first air inlet 2, one air outlet 5 is located above the first spray mechanism 4, and the other air outlet 5 is located above the second spray mechanism 9. When the fan 6 is turned on, the first air inlet 2 and the second air inlet 8 simultaneously introduce outside cold air into the cooling tower, thereby cooling the hot water sprayed by the first spray mechanism 4 and the second spray mechanism 9, significantly improving cooling efficiency and ensuring more stable and energy-efficient equipment operation.
[0032] like Figure 2 As shown, vertical partitions 10 are provided between the two ends of the vertical diagonal of the heat exchange structure 3 and the inner wall of the tower body 1, and horizontal partitions 11 are provided between the two ends of the horizontal diagonal of the heat exchange structure 3 and the inner wall of the tower body 1. The upper and lower edges of the heat exchange structure 3 abut against the vertical partitions 10, the side edges of the heat exchange structure 3 abut against the horizontal partitions 11, and the front and rear end faces of the heat exchange structure 3 abut against the front and rear inner wall faces of the tower body 1. The heat exchange structure 3 divides the tower body 1 into four chambers. The chamber at the lower end of the heat exchange structure 3 near the first air inlet 2 is the first cavity 12, the chamber at the lower end of the heat exchange structure 3 near the second air inlet 8 is the second cavity 13, the chamber at the upper end of the heat exchange structure 3 near the first spray mechanism 4 is the first heat exchange chamber 14, and the chamber at the upper end of the heat exchange structure 3 near the second spray mechanism 9 is the second heat exchange chamber 15. The first cavity 12 is connected to the first heat exchange chamber 14, and the second cavity 13 is connected to the second heat exchange chamber 15. The water sprayed by the first spraying mechanism 4 flows from the first heat exchange chamber 14 through the heat exchange structure 3 to the first cavity 12, and the water sprayed by the second spraying mechanism 9 flows from the second heat exchange chamber 15 through the heat exchange structure 3 to the second cavity 13. This effectively prevents the sprayed hot water from splashing and ensures that the hot water can flow into the heat exchange structure 3, which is beneficial to improving the heat exchange efficiency.
[0033] like Figure 3As shown, the first spray mechanism 4 includes a spray pipe 17, and a plurality of spray heads 18 are provided on the spray pipe 17. The first spray mechanism 4 and the second spray mechanism 9 are connected to the external hot water that needs to be cooled. The second spray mechanism 9 has the same structure as the first spray mechanism 4. Through the setting of the spray heads 18, it is used to spray the hot water that needs to be heated evenly into the heat exchange structure 3.
[0034] A water collector 16 is installed above the first spray mechanism 4 and the second spray mechanism 9 to collect water droplets carried by the air inside the cooling tower.
[0035] In this embodiment 1, as Figure 4 As shown, when the cooling tower is in operation during seasons with suitable ambient temperatures, such as spring and autumn, only the first spray mechanism 4 needs to be activated. Hot water is sprayed evenly downwards from the spray head 18 of the first spray mechanism 4. At the same time, cold air from the outside, driven by the fan 6, flows into the interior of the tower body 1 from the first air inlet 2 and flows upwards along the gas passage of the heat exchange structure 3. The sprayed hot water undergoes preliminary pre-cooling in the first heat exchange chamber 14 and then flows downwards into the water passage of the heat exchange structure 3. The hot water in the water passage comes into full contact with the cold air in the gas passage, and through efficient heat exchange, the hot water is effectively cooled. The water after heat exchange in the heat exchange structure 3 flows into the first cavity 12 and then undergoes final heat exchange with the cold air flowing into the cooling tower. After three steps of heat exchange, the water finally flows into the water collection tank 7.
[0036] In a specific embodiment 2, such as Figure 5 As shown, when the ambient temperature rises significantly, such as in summer, the first spray mechanism 4 and the second spray mechanism 9 will be turned on simultaneously. At this time, under the suction of the fan 6, the first air inlet 2 and the second air inlet 8 work together, and a large amount of cold air rushes into the tower to cool the hot water sprayed by the first spray mechanism 4 and the second spray mechanism 9 respectively.
[0037] The hot water sprayed by the first spray mechanism 4 flows through the first heat exchange chamber 14, the heat exchange structure 3, and the first cavity 12, and flows into the water collection tank 7; the cold air entering through the first air inlet 2 flows through the first cavity 12, the heat exchange structure 3, and the first heat exchange chamber 14 in sequence, and finally flows out from the air outlet 5 above the first spray mechanism 4.
[0038] The hot water sprayed by the second spray mechanism 9 flows through the second heat exchange chamber 15, the heat exchange structure 3, and the second cavity 13, and flows into the water collection tank 7. The cold air that rushes in through the second air inlet 8 flows through the second cavity 13, the heat exchange structure 3, and the second heat exchange chamber 15 in sequence, and finally flows out from the air outlet 5 above the second spray mechanism 9.
[0039] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0040] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.
Claims
1. A novel counter-flow open cooling tower, characterized in that, The tower includes a tower body (1), a first air inlet (2) is provided on the lower part of the outer wall of one side of the tower body (1), a heat exchange structure (3) is provided in the middle of the tower body (1), the heat exchange structure (3) is arranged at an inclination, a gas passage and a water passage are provided in the heat exchange structure (3), and the gas passage and the water passage are not connected to each other. The heat exchange structure (3) is composed of several heat exchange plates stacked to accommodate the packing material. A first spray mechanism (4) is provided inside the tower body (1) above the heat exchange structure (3). An air outlet (5) is provided at the top of the tower body (1), a fan (6) is provided in the air outlet (5), and a water collection tank (7) is provided at the bottom of the tower body (1). A second air inlet (8) is provided on the outer wall of the tower body (1) corresponding to the first air inlet (2). A second spray mechanism (9) is also provided inside the tower body (1) above the heat exchange structure (3). The first spray mechanism (4) is located above the second air inlet (8), and the second spray mechanism (9) is located above the first air inlet (2).
2. The novel counter-flow open cooling tower as described in claim 1, characterized in that, Vertical partitions (10) are provided between the two ends of the vertical diagonal of the heat exchange structure (3) and the inner wall of the tower body (1), and horizontal partitions (11) are provided between the two ends of the horizontal diagonal of the heat exchange structure (3) and the inner wall of the tower body (1).
3. A novel counter-flow open cooling tower as described in claim 2, characterized in that, The upper and lower sides of the heat exchange structure (3) abut against the vertical partition (10), the side of the heat exchange structure (3) abuts against the horizontal partition (11), and the front and rear end faces of the heat exchange structure (3) abut against the inner wall surfaces of the tower body (1) at the front and rear. The heat exchange structure (3) divides the tower body (1) into four chambers. The chamber at the lower end of the heat exchange structure (3) near the first air inlet (2) is the first cavity (12), the chamber at the lower end of the heat exchange structure (3) near the second air inlet (8) is the second cavity (13), the chamber at the upper end of the heat exchange structure (3) near the first spray mechanism (4) is the first heat exchange chamber (14), and the chamber at the upper end of the heat exchange structure (3) near the second spray mechanism (9) is the second heat exchange chamber (15). The first cavity (12) is connected to the first heat exchange chamber (14), and the second cavity (13) is connected to the second heat exchange chamber (15).
4. A novel counter-flow open cooling tower as described in claim 1, characterized in that, A water collector (16) is provided above the first spraying mechanism (4) and the second spraying mechanism (9).
5. A novel counter-flow open cooling tower as described in claim 1, characterized in that, The first spraying mechanism (4) includes a spray pipe (17), and a plurality of spray heads (18) are provided on the spray pipe (17). The first spraying mechanism (4) and the second spraying mechanism (9) are connected to an external water source. The second spraying mechanism (9) has the same structure as the first spraying mechanism (4).