Fog-dissipation water-saving cooling tower without power consumption

Abstract

The invention relates to the field of cooling towers, in particular to a power-consumption-free fog-dispersal water-saving cooling tower which comprises a fog-dispersal structure arranged at the top of an exhaust fan of the cooling tower, the fog-dispersal structure comprises a first flow guide cover, a second flow guide cover is arranged at the bottom of the first flow guide cover, and the first flow guide cover and the second flow guide cover are both conical and open downwards. The top of the first flow guide cover is provided with an arc-shaped vault in a sealed mode, the top of the second flow guide cover is provided with a first flat top, an air guide opening is formed in the middle of the first flat top, the bottom of the second flow guide cover is provided with a first flow guide auxiliary cover, and first heat exchange fins are arranged among the inner wall of the second flow guide cover, the bottom face of the first flat top and the first flow guide auxiliary cover. According to the device, extra energy input is not needed, the exhaust condensation phenomenon is suppressed in the device by optimizing an exhaust path and utilizing aerodynamics and environment temperature difference, and therefore efficient discharging demisting and condensate water recycling are achieved, and the device is simple in structure and low in cost.

Description

Technical Field

[0001] The invention relates to the field of cooling towers, in particular to a cooling tower with zero power consumption, demisting and water saving. Background Art

[0002] In the electric power sector, cooling towers are key heat dissipation facilities, and their operating efficiency is directly related to the production benefits of enterprises and the achievement of environmental protection standards. However, during the operation of traditional cooling towers, due to evaporation and dispersion, a certain degree of water loss will inevitably occur, which not only increases the demand for supplementary water, but may also have an adverse effect on the water quality of cooling water. Especially when the temperature is low, the difference between the exhaust temperature of the cooling tower and the ambient temperature is large, and it is easier to condense suspended droplets and cause serious water mist. Therefore, it is necessary to add demisting equipment to treat the exhaust air.

[0003] In the defogging mode, the conventional heat exchange device of the existing cooling tower has a defogging effect, but the active circulation heat dissipation of the heat exchanger also consumes energy, which greatly reduces the benefits of defogging. In the non-defogging mode, the heat exchange layer does not perform heat exchange, and the flow resistance of the humid hot air is increased when it is discharged, resulting in a certain degree of high power consumption, reduced operating efficiency and energy waste. Therefore, in order to optimize the above problems, a zero-power defogging and water-saving cooling tower is proposed. Summary of the invention

[0004] In view of the above-mentioned problem or the problem of low benefit of cooling tower mist elimination in the prior art, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a cooling tower with no power consumption, mist elimination and water saving.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a non-power-consuming and water-saving cooling tower with demisting and mist-eliminating functions, comprising a demisting structure arranged at the top of a cooling tower exhaust fan, comprising a deflector cover 1, a deflector cover 2 is arranged at the bottom of the deflector cover 1, the deflector cover 1 and the deflector cover 2 are both conical and open downward, and a circular arc-shaped dome is sealed on the top of the deflector cover 1, a flat top 1 is arranged on the top of the deflector cover 2, and an air guide port is opened in the middle of the flat top 1, a deflector auxiliary cover 1 is arranged at the bottom of the deflector cover 2, and the inner wall and the flat top 1 of the deflector cover 2 are A heat exchange fin 1 is arranged between the bottom surface and the auxiliary air guide cover 1; an adjusting rod is coaxially arranged between the air guide cover 1 and the air guide cover 2, the top end of the adjusting rod is rotatably connected to the arch, and the adjusting rod is threadedly connected to a nut 1, a long connecting rod 1 is hinged on the peripheral wall of the nut 1, and a short connecting rod 1 and a short connecting rod 2 are hinged at the end of the long connecting rod 1, the end of the short connecting rod 1 is hinged to the bottom edge of the air guide cover 1, the end of the short connecting rod 2 is hinged to the top edge of the air guide cover 2, and the long connecting rod 1, the short connecting rod 1 and the short connecting rod 2 are all distributed in a ring array about the adjusting rod.

[0007] As a preferred solution of the zero-power consumption, demisting and water-saving cooling tower of the present invention, wherein: the bottom edges of the second air guide cover are both curled outward, and the cross-sectional profile of the curled edge is U-shaped, the top of the first air guide sub-cover is horizontally provided with a side strip one toward the inside, the bottom of the first air guide sub-cover is horizontally provided with a side strip two toward the outside, and the outer edge of the side strip two is bent upward in a quarter-circular arc shape.

[0008] As a preferred solution of the zero-power consumption, fog-eliminating and water-saving cooling tower of the present invention, wherein: a deflector cover three is coaxially arranged at the bottom of the deflector sub-cover one, a flat top two is arranged on the top of the deflector cover three, a deflector sub-cover two is matched at the bottom of the deflector cover three, and a heat exchange fin two is arranged between the deflector cover three, the flat top two and the deflector sub-cover two, and the connection structure of the deflector cover three, the flat top two, the deflector sub-cover two and the heat exchange fin two is the same as the connection structure of the deflector cover two, the flat top one, the deflector sub-cover one and the heat exchange fin one, and is provided with a structural extension identical to the curling, the edge strip one and the edge strip two.

[0009] As a preferred solution of the zero-power consumption, fog-eliminating and water-saving cooling tower of the present invention, the tapers of the deflector cover one, the deflector cover two and the deflector cover three are the same, the diameter of the deflector cover one is smaller than that of the deflector cover two, the diameter of the deflector cover two is smaller than that of the deflector cover three, and the bottom edges of the deflector cover two, the deflector cover three, the deflector sub-cover one and the deflector sub-cover two are all provided with drainage interfaces.

[0010] As a preferred solution of the zero-power consumption, demisting and water-saving cooling tower of the present invention, the air inlet area of ​​the flat top two is smaller than half of the top area of ​​the air guide cover three, and the air inlet area of ​​the flat top one is smaller than half of the air inlet area of ​​the flat top two.

[0011] As a preferred solution of the zero-power consumption, demisting and water-saving cooling tower of the present invention, wherein: the tops and bottoms of the deflector hoods 1, 2 and 3 are provided with steel rings of corresponding diameters, and the inner walls of the deflector hoods 1, 2 and 3 are provided with spokes, the two ends of the spokes are vertically connected to adjacent steel rings, the steel rings and spokes are made of thin-walled stainless steel pipes, and the spokes are arranged in a circular array about the steel rings.

[0012] As a preferred solution of the zero-power consumption, demisting and water-saving cooling tower of the present invention, wherein: the bottom edge of the deflector cover two is hinged with a short connecting rod one, and the bottom edge of the deflector cover three is hinged with a short connecting rod two, a long connecting rod two is hinged between the short connecting rod one and the short connecting rod two, the other end of the long connecting rod two is hinged with a nut two, the distance between the long connecting rod one and the long connecting rod two at one end of the adjusting rod is greater than the distance between the other ends, and the nut one and the nut two are symmetrically arranged about the two ends of the adjusting rod.

[0013] As a preferred solution of the zero-power consumption, demisting and water-saving cooling tower of the present invention, the short connecting rod 1 and the short connecting rod 2 are both hinged with an adapter at one end away from the adjusting rod, the adapter is fixedly sleeved with the spokes, and one end of the adapter is clamped with the steel ring.

[0014] As a preferred solution of the zero-power consumption, demisting and water-saving cooling tower of the present invention, a motor is arranged at the top of the arch, and the output shaft of the motor is vertically downwardly connected to the adjusting rod.

[0015] As a preferred solution of the zero-power consumption, demisting and water-saving cooling tower of the present invention, wherein: the flat top 2 is located at the intersection with the long connecting rod 2 and a slide groove is provided to match the movable range of the long connecting rod 2, and the slide groove is located between the adjacent heat exchange fins 2.

[0016] The beneficial effects of the zero-power consumption, demisting and water-saving cooling tower of the present invention are as follows: the device does not require additional energy input, and suppresses the exhaust condensation phenomenon inside the equipment by optimizing the exhaust path and utilizing aerodynamics and ambient temperature differences, thereby achieving efficient exhaust demisting and condensed water recovery, and has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The overall structural diagram of the cooling tower with zero power consumption, mist elimination and water saving is shown in the figure.

[0019] Figure 2 The schematic diagram of the demisting structure of the cooling tower is a non-power-consuming and water-saving demisting cooling tower.

[0020] Figure 3 For zero power consumption, mist elimination and water saving cooling tower Figure 2 Structural cross-section view.

[0021] Figure 4 For zero power consumption, mist elimination and water saving cooling tower Figure 2 Schematic diagram of the bottom perspective structure.

[0022] Figure 5 For zero power consumption, mist elimination and water saving cooling tower Figure 3 Schematic diagram of the bottom perspective structure.

[0023] Figure 6 The schematic diagram of the partial structure of the support of the cooling tower with zero power consumption, mist elimination and water saving is shown in the figure.

[0024] Figure 7For zero power consumption, mist elimination and water saving cooling tower Figure 3 Schematic diagram of the structure after removing the bracket. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] Example 1, reference Figure 1 to Figure 7 , which is the first embodiment of the present invention, and provides a non-power-consuming and water-saving cooling tower that can eliminate fog at the exhaust port of the cooling tower and recover condensed water. The cooling tower comprises a defogging structure arranged at the top of the exhaust fan 300 of the cooling tower, and comprises a defogging cover 100, a defogging cover 2 101 is arranged at the bottom of the defogging cover 100, the defogging cover 100 and the defogging cover 2 101 are both conical and open downward, and the top of the defogging cover 100 is sealed with an arc-shaped dome 100a, the top of the defogging cover 2 101 is provided with a flat top 105, and an air guide port 107 is opened in the middle of the flat top 105, the bottom of the defogging cover 2 101 is provided with a defogging auxiliary cover 103, and the inner wall and the flat top of the defogging cover 2 101 are A heat exchange fin 108 is arranged between the bottom surface of the air deflector 105 and the air deflector sub-cover 103; an adjusting rod 202 is coaxially arranged between the air deflector 100 and the air deflector 2 101, the top of the adjusting rod 202 is rotatably connected to the arch 100a, and the adjusting rod 202 is threadedly connected to a nut 103, a long connecting rod 205 is hinged to the peripheral wall of the nut 203, and a short connecting rod 1 207 and a short connecting rod 2 208 are hinged to the end of the long connecting rod 205, the end of the short connecting rod 207 is hinged to the bottom edge of the air deflector 100, the end of the short connecting rod 208 is hinged to the top edge of the air deflector 2 101, and the long connecting rod 1 205, the short connecting rod 1 207 and the short connecting rod 2 208 are all distributed in a circular array about the adjusting rod 202.

[0027] Specifically, the bottom edge of the second air guide cover 101 is provided with a curling edge 101a outward, and the cross-sectional profile of the curling edge 101a is U-shaped, the top of the air guide sub-cover 103 is provided with a side strip 103a horizontally inward, and the bottom of the air guide sub-cover 103 is provided with a side strip 103b horizontally outward, and the outer edge of the side strip 103b is bent upward in a quarter arc shape.

[0028] The defogger principle and advantages of the device are further explained in combination with the prior art. In the prior art, a heat exchanger is covered at the exhaust port on the top of the cooling tower. Coolant flows through the inside of the heat exchanger. Exhaust air is pre-cooled and condensed when passing through the heat exchanger. The condensed water drips downward for recovery and the exhaust air achieves the defogger effect. However, the circulation of coolant in the heat exchanger not only requires energy and equipment drive, but the coolant needs to be cooled and recycled after absorbing heat. There are many external supporting equipment, which leads to a decrease in the benefits of the overall defogger of the equipment. In addition, in summer, when the temperature difference between the exhaust air of the cooling tower and the atmosphere is small and there is no need to start the defogger mode, the heat exchanger covering the exhaust port will obviously not only not generate any benefits, but will cause exhaust resistance.

[0029] The present invention mainly provides a tower-shaped multi-layer demisting structure. Taking the most basic double-layer as an example, the device is discharged upward by the fan, and the airflow enters the second air guide cover 101 and is divided into two parts. Most of the airflow is blocked by the flat top and diffuses around, entering between the heat exchange fin 108, the air guide sub-cover 103 and the second air guide cover 101. A small amount of airflow flows along the conical inner wall of the air guide sub-cover 103, and the remaining airflow enters the air guide cover 100 through the air guide port 107, and diffuses around after encountering the arch 100a. In this process, the device exerts the following effects on the exhaust airflow:

[0030] First, except under extreme environmental conditions, the velocity of the airflow refracted by the flat roof 105 to the surroundings is significantly higher than the wind speed in the environment. Therefore, the air pressure inside the air guide cover 100 and the air guide cover 2 101 is significantly lower than the external air pressure. The negative pressure generated will introduce the cold air around the device into the interior. The introduced cold air replaces the coolant flowing in the traditional heat exchange equipment, contacts and mixes with the exhaust airflow, causing the exhaust airflow to cool down quickly and produce condensation.

[0031] Secondly, when the exhaust airflow refracted to the surroundings along the flat top 105 enters the inclined inner wall of the guide sub-cover, the movement direction is changed from horizontal to oblique downward, and the inertia makes this part of the exhaust airflow close to the inner wall of the guide sub-cover. In addition, since the temperature and flow rate of this part of the airflow are different from those of the external cold air introduced by the negative pressure, the two airflows with different densities will not be immediately mixed at the edge of the guide sub-cover 103, thereby avoiding the vortex of the cold air in the initial stage of being introduced and generating intake resistance. Therefore, the device can efficiently and large-volume introduce cold air, so that the condensation of the exhaust airflow occurs inside the device, and the benefit is the efficient recovery of condensed water and the reduction of water mist leakage.

[0032] Thirdly, since the introduced cold air is not completely mixed with the exhaust air flow, a part of it bypasses and loses from the periphery of the exhaust air flow, and this part of the cold air is still effectively utilized, and the introduced cold air flows along the upper surface of the second air guide cover 101. The structure of the device, which is small at the top and large at the bottom, will accelerate the flow velocity of the cold air flowing through the surface of the second air guide cover 101, and quickly take away the heat of the second air guide cover 101. With the help of the heat exchange fins to increase the heat exchange contact area, the second air guide cover 101 maintains a low temperature and fully exchanges heat with the exhaust air flow. At the same time, the larger contact area is also helpful in collecting condensed water.

[0033] Fourthly, while the exhaust air flow is condensing, it is also constantly changing its direction inside the device. The droplets produced by condensation will be difficult to change direction with the air flow due to inertia when the air flow changes direction, and thus will be retained inside the equipment, such as the arc part of the edge of the edge strip 2 103b of the guide sub-cover. This collection effect reduces the leakage of water mist and improves the efficiency of condensed water recovery.

[0034] In summary, the device does not require additional energy input. By optimizing the exhaust path and utilizing aerodynamics and ambient temperature differences, the exhaust condensation phenomenon is suppressed inside the equipment, thereby achieving efficient exhaust demisting and condensed water recovery, and has a simple structure and low cost.

[0035] Example 2, reference Figure 3 to Figure 7 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a non-power-consuming and water-saving cooling tower defogging structure stacking expansion. The device can choose to increase or decrease the number of layers at the bottom of the defogging structure to adapt to cooling towers with different exhaust air flows and climatic characteristics in different regions. It includes: the bottom of the defogging auxiliary cover 103 is coaxially provided with a defogging cover 3 102, the top of the defogging cover 3 102 is provided with a flat top 2 106, and the bottom of the defogging cover 3 102 is matched with a defogging cover 103. A second sub-cover 104, and a heat exchange fin 2 109 is arranged between the guide cover 3 102, the flat top 2 106 and the guide sub-cover 104, and the connection structure of the guide cover 3 102, the flat top 2 106, the guide sub-cover 104 and the heat exchange fin 2 109 is the same as the connection structure of the guide cover 2 101, the flat top 105, the guide sub-cover 1 103 and the heat exchange fin 1 108, and is provided with a structural extension that is the same as the curling edge 101a, the edge strip 1 103a and the edge strip 2 103b.

[0036] Specifically, the tapers of the air guide cover 100, the air guide cover 2 101 and the air guide cover 3 102 are the same, the diameter of the air guide cover 100 is smaller than that of the air guide cover 2 101, and the diameter of the air guide cover 2 101 is smaller than that of the air guide cover 3 102. The bottom edges of the air guide cover 2 101, the air guide cover 3 102, the air guide sub-cover 1 103 and the air guide sub-cover 2 104 are all provided with drainage interfaces 110.

[0037] When the deflector cover 1 100 combined with a layer of deflector cover 2 101 cannot meet the demisting requirements, a relatively larger deflector cover 3 102 is added to the bottom of the deflector cover 2 101, including matching deflector sub-cover 2 104, heat exchange fin 2 109 and other accessories, to increase the working flow of the equipment.

[0038] However, it should be specially noted that the diameter of the air duct 107 should not be too large. The function of the air duct 107 is to distribute the remaining flow that cannot be processed by the air duct cover where it is located to the upper layer structure. The tower structure of the device means that the lower the bottom, the larger the volume and contact area, and the stronger the processing capacity. Therefore, if the air duct 107 is too large, it will lead to performance waste of the current structure and overload of the upper structure. The specific needs are determined according to the environmental climate of the equipment and the power of the condensing tower. The reference size is that the area of ​​the air duct 107 of the flat top 2 106 is smaller than half of the top area of ​​the air duct cover 3 102, and the area of ​​the air duct 107 of the flat top 105 is smaller than half of the area of ​​the air duct 107 of the flat top 2 106.

[0039] The rest of the structure is the same as that of Example 1.

[0040] Example 3, reference Figure 2 to Figure 6 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a non-power-consuming and water-saving cooling tower defogging structure layer spacing adjustment to improve the applicability of the equipment, which includes: the top and bottom of the deflector 100, the deflector 2 101 and the deflector 3 102 are all provided with steel rings 200 corresponding to the diameter, and the inner walls of the deflector 100, the deflector 2 101 and the deflector 3 102 are all provided with spokes 201, the two ends of the spokes 201 are vertically connected to the adjacent steel rings 200, and the steel rings 200 and the spokes 201 are made of thin-walled stainless steel. The spokes 201 are arranged in a circular array about the steel ring 200, a short connecting rod 1 207 is hinged on the bottom edge of the air deflector 2 101, and a short connecting rod 2 208 is hinged on the bottom edge of the air deflector 3 102, a long connecting rod 206 is hinged between the short connecting rod 1 207 and the short connecting rod 208, a nut 204 is hinged on the other end of the long connecting rod 206, the distance between the long connecting rod 1 205 and the long connecting rod 206 at one end of the adjusting rod 202 is greater than the distance between the other ends, and the nut 1 203 and the nut 204 are symmetrically arranged about the two ends of the adjusting rod 202.

[0041] Specifically, the short link 1 207 and the short link 208 are both hinged with an adapter 209 at one end away from the adjusting rod 202. The adapter 209 is fixedly sleeved with the spoke 201, and one end of the adapter 209 is clamped with the steel ring 200. A motor 210 is provided at the top of the arch 100a, and the output shaft of the motor 210 is vertically downwardly connected to the adjusting rod 202. The flat top 106 is located at the intersection with the long link 206, and a slide groove 106a is provided to match the movable range of the long link 206, and the slide groove 106a is located between adjacent heat exchange fins 2 109.

[0042] Although the device does not require additional energy input when working, in order to make the demisting function achieve the optimal working efficiency under different working conditions and different climatic conditions of the cooling tower, the device also provides a layer height adjustment function between different air guide covers. Taking the third layer as an example, by driving the adjustment rod 202 to rotate and drive nut 1 203 and nut 2 204 to approach, and make the long connecting rod 1 205 and the long connecting rod 2 206 tend to a horizontal posture, the long connecting rod 1 205 and the long connecting rod 2 206 push their corresponding short connecting rod 1 207 and the short connecting rod 2 208 respectively, so that the short connecting rod 1 207 and the short connecting rod 2 208 tend to a vertical posture, thereby increasing the layer height, and vice versa. The main function of adjusting the layer height is to adjust the size of the channel for outside air to enter the device, so as to adjust the mixing ratio of outside air and exhaust air flow.

[0043] The rest of the structure is the same as that of Example 2.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A cooling tower with zero power consumption, mist elimination and water saving, characterized by: The invention comprises a demisting structure arranged at the top of a cooling tower exhaust fan (300), comprising a deflector cover (100), a deflector cover (101) being arranged at the bottom of the deflector cover (100), the deflector cover (100) and the deflector cover (101) being both conical and open downward, and a circular arc-shaped dome (100a) being sealed at the top of the deflector cover (100), a flat top (105) being arranged at the top of the deflector cover (101), and an air guide port (107) being opened in the middle of the flat top (105), a deflector sub-cover (103) being arranged at the bottom of the deflector cover (101), and a heat exchange fin (108) being arranged between the inner wall of the deflector cover (101), the bottom surface of the flat top (105) and the deflector sub-cover (103); An adjusting rod (202) is coaxially arranged between the air deflector 1 (100) and the air deflector 2 (101), the top end of the adjusting rod (202) is rotatably connected to the arch (100a), and the adjusting rod (202) is threadedly connected to a nut 1 (203), a long connecting rod 1 (205) is hingedly connected to the peripheral wall of the nut 1 (203), and the end of the long connecting rod 1 (205) is hingedly connected to a short connecting rod 1 (207) and a short connecting rod 2 (208), the end of the short connecting rod 1 (207) is hingedly connected to the bottom edge of the air deflector 1 (100), and the end of the short connecting rod 2 (208) is hingedly connected to the top edge of the air deflector 2 (101), and the long connecting rod 1 (205), the short connecting rod 1 (207) and the short connecting rod 2 (208) are all distributed in a ring array with respect to the adjusting rod (202).

2. The power-saving, mist-eliminating and water-saving cooling tower according to claim 1, characterized in that: The bottom edge of the second air guide cover (101) is provided with a curling edge (101a) toward the outside, and the cross-sectional profile of the curling edge (101a) is U-shaped, the top of the first air guide cover (103) is provided with a side strip (103a) toward the inside horizontally, the bottom of the first air guide cover (103) is provided with a side strip (103b) toward the outside horizontally, and the outer edge of the side strip (103b) is bent upward in a quarter arc shape.

3. The power-saving, mist-eliminating and water-saving cooling tower according to claim 2, characterized in that: A deflector cover three (102) is coaxially arranged at the bottom of the deflector cover one (103), a flat top two (106) is arranged at the top of the deflector cover three (102), a deflector cover two (104) is matched with the bottom of the deflector cover three (102), and a heat exchange fin two (109) is arranged between the deflector cover three (102), the flat top two (106) and the deflector cover two (104), and the connection structure of the deflector cover three (102), the flat top two (106), the deflector cover two (104) and the heat exchange fin two (109) is the same as the connection structure of the deflector cover two (101), the flat top one (105), the deflector cover one (103) and the heat exchange fin one (108), and is provided with a structural extension that is the same as the curling edge (101a), the edge strip one (103a) and the edge strip two (103b).

4. The power-saving, mist-eliminating and water-saving cooling tower according to claim 3 is characterized in that: The tapers of the air guide cover one (100), the air guide cover two (101) and the air guide cover three (102) are the same, the diameter of the air guide cover one (100) is smaller than that of the air guide cover two (101), the diameter of the air guide cover two (101) is smaller than that of the air guide cover three (102), and the bottom edges of the air guide cover two (101), the air guide cover three (102), the air guide sub-cover one (103) and the air guide sub-cover two (104) are all provided with drainage interfaces (110).

5. The power-saving, mist-eliminating and water-saving cooling tower according to claim 4, characterized in that: The area of ​​the air guide port (107) of the flat top 2 (106) is smaller than half of the area of ​​the top end of the air guide cover 3 (102), and the area of ​​the air guide port (107) of the flat top 1 (105) is smaller than half of the area of ​​the air guide port (107) of the flat top 2 (106).

6. The zero-power consumption, mist-eliminating and water-saving cooling tower according to claim 5, characterized in that: The tops and bottoms of the deflector 1 (100), the deflector 2 (101) and the deflector 3 (102) are all provided with steel rings (200) of corresponding diameters, and the inner walls of the deflector 1 (100), the deflector 2 (101) and the deflector 3 (102) are all provided with spokes (201), and the two ends of the spokes (201) are vertically connected to the adjacent steel rings (200), the steel rings (200) and the spokes (201) are both made of thin-walled stainless steel pipes, and the spokes (201) are arranged in a ring array with respect to the steel rings (200).

7. The zero-power consumption, mist-eliminating and water-saving cooling tower according to claim 6, characterized in that: The bottom edge of the deflector cover 2 (101) is hinged with a short connecting rod 1 (207), and the bottom edge of the deflector cover 3 (102) is hinged with a short connecting rod 2 (208), a long connecting rod 2 (206) is hinged between the short connecting rod 1 (207) and the short connecting rod 2 (208), the other end of the long connecting rod 2 (206) is hinged with a nut 2 (204), the distance between the long connecting rod 1 (205) and the long connecting rod 2 (206) at one end of the adjusting rod (202) is greater than the distance between the other ends, and the nut 1 (203) and the nut 2 (204) are symmetrically arranged with respect to the two ends of the adjusting rod (202).

8. The zero-power consumption, mist-eliminating and water-saving cooling tower according to claim 7, characterized in that: The short connecting rod 1 (207) and the short connecting rod 2 (208) are both hingedly connected with an adapter (209) at one end away from the adjusting rod (202). The adapter (209) is fixedly sleeved with the spoke (201), and one end of the adapter (209) is clamped with the steel ring (200).

9. The power-saving, mist-eliminating and water-saving cooling tower according to claim 8, characterized in that: A motor (210) is disposed at the top of the arch (100a), and an output shaft of the motor (210) is vertically connected downward to the adjustment rod (202).

10. The zero-power consumption, mist-eliminating and water-saving cooling tower according to claim 9, characterized in that: The flat top 2 (106) is located at the intersection with the long connecting rod 2 (206) and is provided with a slide groove (106a) to match the movable range of the long connecting rod 2 (206), and the slide groove (106a) is located between adjacent heat exchange fins 2 (109).

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