Stacked M-cycle dew-point evaporation cooling tower

Abstract

The invention relates to the technical field of cooling towers, in particular to a stacked M-cycle dew-point evaporation cooling tower which comprises a cooling tower body, a fan and a spraying pipe, the fan and the spraying pipe are arranged at the top in the cooling tower body, a water outlet is formed in the bottom in the cooling tower body, and a plurality of layers of cooling filler modules stacked up and down are arranged in the cooling tower body. The number of layers of the cooling filler modules is any one or a combination of two layers and three layers, and each cooling filler module is composed of dry channels and wet channels which are adjacently and alternately arranged; a module mounting and dismounting assembly; and a sub-bin isolation assembly. The number of the modules is flexibly and vertically increased or decreased according to cooling requirements, overall structure transformation is not needed, the installation period is remarkably shortened, and the transformation cost is reduced; and through alternate circulation (M circulation) of dry channel pre-cooling air shunting and wet channel evaporative cooling, and in combination with alternate heat exchange of multiple stages of dry and wet channels, the air temperature is reduced layer by layer, the traditional wet bulb temperature limitation is broken through, and the cooling water temperature is close to the ambient air dew point temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling towers, and particularly relates to a stacked M-cycle dew point evaporation cooling tower. Background Art

[0002] As an important device in the industrial circulating water system, the core function of a cooling tower is to reduce the circulating water temperature through heat and mass transfer. Traditional cooling towers are mainly divided into two categories: wet (evaporative cooling) and dry (convective cooling). The cooling limit of traditional wet cooling towers is limited by the wet bulb temperature of the ambient air, resulting in the inability to further reduce the circulating water temperature to the dew point temperature. Dry cooling towers: Use finned tube heat exchangers to indirectly convect heat between air and cooling water, without evaporation water consumption problems, but with insufficient cooling capacity and dependence on the dry bulb temperature of the ambient air.

[0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0004] The object of the present invention is to solve the above deficiencies and provide a stacked M-cycle dew point evaporation cooling tower.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: A stacked M-cycle dew point evaporation cooling tower, including a cooling tower body, a fan provided at the top inside the cooling tower body for introducing ambient air, and a spray pipe for generating spray water mist. An outlet for discharging cooling water is provided at the bottom inside the cooling tower body. Several layers of cooling filler modules stacked up and down are provided inside the cooling tower body. The number of layers of the cooling filler modules is any one and combination of two layers and three layers. Each cooling filler module is composed of dry channels and wet channels arranged adjacent to each other alternately;

[0006] Module installation and disassembly assembly, including an upper support frame and a lower support frame provided on the upper and lower sides of the cooling filler module, and a power assembly provided between the upper support frame and the lower support frame and used for horizontally inserting and extracting the cooling filler module;

[0007] Compartment isolation assembly, arranged along the horizontal insertion and extraction direction of the cooling filler module and correspondingly provided at the outer end of the cooling filler module, used for compartment isolation of the area where the cooling filler module is located after the cooling filler module is extracted.

[0008] Further, the power assembly includes a first moving plate and a second moving plate respectively slidably arranged on the upper support frame and the lower support frame and fixed to the upper and lower ends of the cooling filler module, and a manual hoist provided on the end face of the cooling tower body and used for translating the cooling filler module to extract or insert it.

[0009] Further, the bin isolation component includes a partition plate movably arranged on the upper support frame and moving away from the first moving plate, first racks arranged at both ends of the partition plate, gears arranged between the inner sides of the first racks at both ends and between the upper support frame and the lower support frame, and a second rack fixed on the first moving plate on the side of the gear away from the first rack.

[0010] Further, two smoothly connected inclined surfaces are arranged on the top surface of the partition plate, water storage tanks for guiding the water on the inclined surfaces are arranged on both sides of the upper support frame, the inclined surfaces are used to guide the sprayed water in the internal space of the cooling tower body after separation into the water storage tanks, and a conduit vertically distributed between the upper support frame and the lower support frame is communicated with the water storage tank.

[0011] Further, the closed surfaces on both sides of the dry channel and the wet channel are both composed of partition plates, and the surfaces of the partition plates are provided with corrugated structures.

[0012] Further, the cooling filler module is composed of a metal tubular structure with threads or vortex pits on the surface.

[0013] Further, the distances between the dry channels and the wet channels included in the cooling filler modules distributed from the top layer to the bottom layer in the cooling tower body gradually decrease layer by layer.

[0014] Further, one end of the lower support frame is provided with a side plate fixed to the upper support frame adjacent to the lower layer, air flow discharge ports for discharging air flow are arranged on the side plate and the part of the upper support frame outside the side plate, a air volume regulating valve is arranged at the air flow discharge port arranged on the upper support frame, and the air volume regulating valve adopts any one or a combination of plug-in type and handle type.

[0015] Further, a housing is arranged at the outer end of the cooling tower body, and several support blocks for adapting to the partition plate are equidistantly arranged in the housing.

[0016] Further, a pulley device is arranged at the bottom of the cooling filler module at the bottom layer.

[0017] Compared with the prior art, the present invention has the following beneficial effects: By providing a cooling filler module and a module installation and disassembly component, the number of modules can be flexibly increased or decreased vertically according to the cooling requirements (such as expanding from 2 layers to 3 layers) without modifying the overall structure, significantly shortening the installation cycle and reducing the transformation cost; and by providing a cooling filler module composed of alternately arranged dry channels and wet channels, through the alternating cycle (M cycle) of pre-cooling air diversion in the dry channels and evaporative cooling in the wet channels, combined with three-stage (or multi-stage) dry-wet channel heat exchange, the air temperature is gradually reduced layer by layer, breaking through the traditional wet-bulb temperature limit, and making the cooling water temperature approach the dew point temperature of the ambient air; also by providing a bin isolation component, a single-layer module supports independent maintenance or replacement, and the packing area in the cooling tower body can be divided into independent compartments, and the spray water in the non-separated compartment can be drained, realizing maintenance without shutting down the machine, avoiding the overall shutdown of the system, and improving the maintenance efficiency and system fault tolerance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 is a perspective three-dimensional structure diagram of a partial cross-section of the whole of an embodiment of the present invention;

[0020] Figure 2 is a perspective three-dimensional structure diagram of a module installation and disassembly component and a bin isolation component combined on a single cooling filler module in an embodiment of the present invention;

[0021] Figure 3 is a front view plane structure schematic diagram of a module installation and disassembly component and a bin isolation component combined on a single cooling filler module in an embodiment of the present invention;

[0022] Figure 4 is Figure 3 the enlarged structure schematic diagram at A in

[0023] Figure 5 is a connection structure schematic diagram of a first rack, a gear, and a second rack meshing in an embodiment of the present invention;

[0024] Figure 6 is a perspective three-dimensional structure diagram of a cooling filler module in an embodiment of the present invention;

[0025] Figure 7 is a front view plane structure schematic diagram of a cooling filler module in an embodiment of the present invention;

[0026] Figure 8 is a side view plane structure schematic diagram of a cooling filler module in an embodiment of the present invention;

[0027] Figure 9 Schematic top - view plane structure diagram of a cooling filler module according to an embodiment of the present invention;

[0028] Figure 10 Three - dimensional structure diagram of a perspective view of a combination of two - layer cooling filler modules according to another embodiment of the present invention;

[0029] Figure 11 Three - dimensional structure diagram of a perspective view of a cooling filler module according to another embodiment of the present invention;

[0030] Figure 12 Three - dimensional structure diagram of a perspective view of a combination of multiple externally - placed and superimposed modules according to another embodiment of the present invention.

[0031] In the figure: 100, cooling tower body; 101, fan; 102, spray pipe; 1, cooling filler module; 11, dry channel; 12, wet channel; 2, module installation and removal assembly; 21, upper support frame; 22, lower support frame; 23, power assembly; 231, first moving plate; 232, second moving plate; 3, bin isolation assembly; 31, partition plate; 311, inclined surface; 32, first rack; 33, gear; 34, second rack; 35, water storage tank; 36, conduit; 4, side plate; 41, air flow discharge port; 5, housing; 51, support block. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Without conflict, the embodiments and features in this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] As Figures 1-12 shown, a stacked M - cycle dew - point evaporation cooling tower of the present invention includes a cooling tower body 100, a fan 101 provided at the top inside the cooling tower body 100 for introducing ambient air, and a spray pipe 102 for generating spray water mist. An outlet for discharging cooling water is provided at the bottom inside the cooling tower body 100. Several layers of cooling filler modules 1 are stacked up and down inside the cooling tower body 100. The number of layers of the cooling filler module 1 is any one or a combination of two layers and three layers. Each cooling filler module 1 is composed of adjacent and alternating dry channels 11 and wet channels 12;

[0034] The module installation and removal assembly 2 includes an upper support frame 21 and a lower support frame 22 arranged on the upper and lower sides of the cooling filler module 1, and a power assembly 23 arranged between the upper support frame 21 and the lower support frame 22 and used for horizontally inserting and extracting the cooling filler module 1.

[0035] The bin isolation assembly 3 is arranged along the horizontal insertion and extraction direction of the cooling filler module 1 and correspondingly at the outer end of the cooling filler module 1, and is used for bin-isolating the area where the cooling filler module 1 is located after the cooling filler module 1 is extracted.

[0036] In specific implementation, first is the primary circulation of the cooling filler module 1 at the top layer inside the cooling tower body 100. The fan 101 is used to introduce ambient air into the dry channel 11 in the top-layer cooling filler module 1. After passing through the heat exchange plate filler, it undergoes indirect isohumid cooling with the cold air in the adjacent wet channel 12 for precooling (the temperature drops and the humidity remains unchanged). Subsequently, the precooled air is divided into two streams by the air volume regulating valve. The air flow leading to the wet channel 12: The air contacts the spray water mist ejected through the spray pipe 102. The air in the wet channel 12 absorbs sensible heat and latent heat from the cooling water and then is discharged. Among them, the air flow in the dry channel 11: continues to be transported to the dry channel 11 in the middle layer inside the cooling tower body 100 for secondary precooling, that is, the cooling filler module 1 in the middle layer inside the cooling tower body 100 undergoes a secondary circulation. The spacing between the heat exchange plate fillers in the middle-layer dry channel 11 is reduced, and the air is further cooled by passing through the denser heat exchange plates. The air volume regulating valve distributes the air flow again. Part of it enters the evaporative cooling in the middle-layer wet channel 12, and the remaining air flow is transported to the dry channel 11 at the bottom layer inside the cooling tower body 100 for a tertiary circulation. The spacing between the heat exchange plates in the bottom-layer dry channel 11 is further reduced, and the air completes the final precooling here, with the temperature approaching the dew point. The precooled air flow enters the bottom-layer wet channel 12 and fully contacts the high-density spray water mist, maximizing the release of the latent heat of evaporation, so that the cooling circulating water temperature approaches the dew point temperature.

[0037] Also, by means of the upper support frame 21 and the lower support frame 22 installed on the upper and lower sides of the cooling filler module 1, and by fixedly welding the upper support frame 21 and the lower support frame 22 to the inner wall of the cooling tower body 100 inside the cooling tower body 100, as well as the power assembly 23 installed on the cooling filler module 1, it is possible to support the single-layer cooling filler module 1 for independent extraction or insertion, which is convenient for maintenance or replacement.

[0038] The bin isolation assembly 3 installed along the horizontal insertion and extraction direction at the outer end of the cooling filler module 1 can, during the process of maintaining or replacing a certain single-layer module, partition the packing area where it is located into independent compartments and drain the spray water in the non-partitioned compartments, realizing maintenance without shutting down the machine, avoiding the overall shutdown of the system, and improving the maintenance efficiency and the system fault tolerance.

[0039] Preferably, the two-layer cooling filler module 1 can reduce the overall height of the cooling tower body 100, reduce the basic wind resistance, and the height of the filler module at the top layer in the two-layer cooling filler module 1 is twice that of the filler module at the bottom layer.

[0040] It should be noted that the spray nozzles installed on the spray pipe 102 have the function of automatic expansion and contraction, can change the flow rate according to actual needs under environmental fluctuations, and ensure the uniformity of water replenishment.

[0041] In one embodiment, the power assembly 23 includes a first moving plate 231 and a second moving plate 232 that are respectively slidably arranged on the upper support frame 21 and the lower support frame 22 and fixed to the upper and lower ends of the cooling filler module 1, and a manual hoist arranged on the end face of the cooling tower body 100 for horizontally moving the cooling filler module 1 to be pulled out or inserted. With such a design, through the guide rails respectively opened on the upper support frame 21 and the lower support frame 22 for the movement of the first moving plate 231 and the second moving plate 232, horizontal hoisting and transfer are carried out under the action of the manual hoist.

[0042] It should be noted that the fixing of the upper and lower sides of the cooling filler module 1 to the first moving plate 231 and the second moving plate 232 can adopt a standardized interface connection.

[0043] In one embodiment, the compartment isolation assembly 3 includes a partition plate 31 movably arranged on the upper support frame 21 and moving away from the first moving plate 231, first racks 32 arranged at both ends of the partition plate 31, and a gear 33 arranged between the upper support frame 21 and the lower support frame 22 on the inner sides of the two ends of the first racks 32, and a second rack 34 fixed to the first moving plate 231 is arranged on the side of the gear 33 away from the first rack 32. With such a design, through the partition plate 31 movably installed in the chute opened on the upper support frame 21, the first racks 32 welded to both ends of the partition plate 31 and the second rack 34 meshed with the first racks 32 by using the gear 33, and the second rack 34 is welded and fixed to the first moving plate 231. When the cooling filler module 1 is horizontally translated by the manual hoist, the first moving plate 231 fixedly engaged on its upper side will move accordingly. At this time, it will drive the gear 33 meshed with the inner side of the second rack 34 welded on the first moving plate 231 to rotate, and through the gear 33, drive the first rack 32 meshed with the other side away from the second rack 34 on it and the partition plate 31 welded on the first rack 32 to move horizontally in the opposite direction away from the first moving plate 231, realizing the horizontal translation of the partition plate 31 in the opposite direction relative to the cooling filler module 1, that is, when the cooling filler module 1 is horizontally pulled out from the cooling tower body 100, the partition plate 31 will synchronously enter the cooling tower body 100 to separate the operating filler area.

[0044] It should be noted that the vertical rod fixedly arranged through the end face of the gear 33 is rotatably arranged between the upper support frame 21 and the lower support frame 22.

[0045] In one embodiment, two smoothly connected inclined surfaces 311 are arranged on the top surface of the partition plate 31. Water storage tanks 35 for guiding the water on the inclined surfaces 311 are arranged on both sides of the upper support frame 21. The inclined surfaces 311 are used to guide the sprayed water in the internal space of the cooling tower body 100 after partitioning into the water storage tanks 35. A conduit 36 vertically distributed between the upper support frame 21 and the lower support frame 22 is communicated with the water storage tank 35. With such a design, through the two oppositely distributed inclined surfaces 311 integrally formed on the top surface of the partition plate 31 and the water storage tanks 35 opened on both sides of the upper support frame 21, when the partition plate 31 enters the interior of the cooling tower body 100, the water mist sprayed from the upper layer will be guided by the inclined surfaces 311 into the water storage tanks 35. Then, under the guiding action of the water storage tanks 35, it will be collected downward to the cooling water storage area through the conduit 36 welded to the bottom of the water storage tanks 35 and finally discharged from the water outlet.

[0046] In one embodiment, the closed surfaces on both sides of the dry channel 11 and the wet channel 12 are both composed of partition plates, and the surfaces of the partition plates are provided with corrugated structures. With such a design, through the corrugated structures processed on the surfaces of the partition plates on both sides of the dry channel 11 and the wet channel 12, the heat and mass transfer efficiency is enhanced, the air flow distribution is balanced, the contact uniformity between the air and the packing in the dry and wet channels is ensured, and the overall energy efficiency is improved.

[0047] In one embodiment, the cooling packing module 1 is composed of a metal tubular structure with threads or vortex pits on the surface. With such a design, by adopting the metal tubular structure with threads or vortex pits, the heat and mass transfer area can be increased and the fluid flow rate can be reduced.

[0048] In one embodiment, the distances between the dry channels 11 and the wet channels 12 included in the cooling packing module 1 distributed from the top layer to the bottom layer in the cooling tower body 100 gradually decrease layer by layer. With such a design, a temperature gradient can be formed, the heat transfer efficiency can be gradually enhanced, and the latent heat of evaporation can be utilized maximally.

[0049] It should be noted that the packing distance of the top-layer cooling packing module 1 is 35 mm for coarse pre-cooling, 30 mm of the middle-layer cooling packing module 1 for further temperature reduction, and 25 mm of the bottom-layer cooling packing module 1 for complete deep cooling.

[0050] In one embodiment, one end of the lower support frame 22 is provided with a side plate 4 fixed to the upper support frame 21 adjacent to the lower layer. Airflow discharge ports 41 for discharging air are provided on both the side plate 4 and the part of the upper support frame 21 located outside the side plate 4. An air volume regulating valve is provided at the airflow discharge port 41 provided on the upper support frame 21, and the air volume regulating valve adopts any one or a combination of plug-in type and handle type. With such a design, by integrally forming a side plate 4 at one end of the lower layer of the lower support frame 22, providing airflow discharge ports 41 on the side plate 4 and the upper support frame 21, and installing an air volume regulating valve at the airflow discharge port 41, the air volume ratio entering the dry channels 11 and the wet channels 12 of each layer is distributed through the air volume regulating valve, ensuring that the synergy between air precooling and evaporative cooling in each stage of the M cycle is maximized, flexibly increasing the circulation times of the precooled air in the dry channels 11, breaking through the traditional wet-bulb temperature limit, ensuring that the cooling water temperature is stably close to the dew point temperature, avoiding local airflow surplus or deficiency, improving the overall heat and mass transfer efficiency, buffering the fluctuations of the ambient temperature and humidity, ensuring the stable operation of the system, making the cooling circulating water temperature approach the dew point temperature, and significantly improving the energy efficiency of the system.

[0051] It should be noted that the air volume regulating valve can be of plug-in type or handle type (the plug-in type controls the air volume according to the ratio of the plug-in length; the handle type controls the air volume according to the ratio of the rotation angle).

[0052] In one embodiment, a housing 5 is provided at the outer end of the cooling tower body 100, and several support blocks 51 for adapting to the partition plates 31 are equidistantly arranged inside the housing 5. With such a design, through the housing 5 welded to the outer end of the cooling tower body 100 and the support blocks 51 welded inside the housing 5 with the same number as the cooling filler module 1 and adapted to the top shape of the partition plates 31, the partition plates 31 can be temporarily placed, and during the non-use stage, the partition plates 31 will be stored inside the housing 5.

[0053] In one embodiment, a pulley device is provided at the bottom of the cooling filler module 1 located at the bottom layer. With such a design, the pulley device installed on the cooling filler module 1 at the bottom layer can be directly taken out through the slideway; while the upper layer module structure adopts an overall hoisting method. If the maintenance and cleaning range is not very large, maintenance can be carried out through the inspection door on the side.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0055] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0056] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, "several layers" and "several" mean two layers and more than two. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A stacked M-cycle dew point evaporation cooling tower, comprising a cooling tower body (100), a fan (101) provided at the top inside the cooling tower body (100) for introducing ambient air, and a spray pipe (102) for generating spray water mist. A water outlet for discharging cooling water is provided at the bottom inside the cooling tower body (100). Several layers of cooling filler modules (1) are stacked vertically inside the cooling tower body (100), and it is characterized in that: The number of layers of the cooling filler module (1) is any one or combination of two layers and three layers, and each cooling filler module (1) is composed of dry channels (11) and wet channels (12) arranged adjacent to each other alternately; The module installation and removal assembly (2) includes an upper support frame (21) and a lower support frame (22) arranged on the upper and lower sides of the cooling filler module (1), and a power assembly (23) arranged between the upper support frame (21) and the lower support frame (22) and used for horizontally inserting and extracting the cooling filler module (1); The bin isolation assembly (3) is arranged along the horizontal insertion and extraction direction of the cooling filler module (1) and correspondingly at the outer end of the cooling filler module (1), and is used for bin-isolating the area where the cooling filler module (1) is located after the cooling filler module (1) is extracted.

2. The stacked M-cycle dew point evaporation cooling tower according to claim 1, wherein: The power assembly (23) includes a first moving plate (231) and a second moving plate (232) respectively and slidably arranged on the upper support frame (21) and the lower support frame (22) and fixed to the upper and lower ends of the cooling filler module (1), and a manual hoist arranged on the end face of the cooling tower body (100) and used for translating the cooling filler module (1) to extract or insert it.

3. The stacked M-cycle dew point evaporation cooling tower according to claim 2, wherein: The bin isolation assembly (3) includes a partition plate (31) movably arranged on the upper support frame (21) and moving away from the first moving plate (231), first racks (32) arranged at both ends of the partition plate (31), a gear (33) arranged between the upper support frame (21) and the lower support frame (22) on the inner sides of both ends of the first racks (32), and a second rack (34) fixed to the first moving plate (231) on the side of the gear (33) away from the first racks (32).

4. The stacked M-cycle dew point evaporation cooling tower according to claim 3, characterized in that: Two smoothly connected inclined surfaces (311) are arranged on the top surface of the partition plate (31), water storage tanks (35) for guiding the inclined surfaces (311) are arranged on both sides of the upper support frame (21), the inclined surfaces (311) are used for guiding the sprayed water in the internal space of the cooling tower body (100) after separation into the water storage tanks (35), and a conduit (36) vertically distributed between the upper support frame (21) and the lower support frame (22) is communicated with the water storage tanks (35).

5. The stacked M-cycle dew point evaporation cooling tower according to claim 1, characterized in that: The closed surfaces on both sides of the dry channels (11) and the wet channels (12) are both composed of partition plates, and the surfaces of the partition plates are provided with corrugated structures.

6. A stacked M-cycle dew point evaporation cooling tower according to claim 1, characterized in that: The cooling filler module (1) is composed of a metal tubular structure with threads or pits on its surface.

7. A stacked M-cycle dew point evaporation cooling tower according to claim 1, characterized in that: The distances between the dry channels (11) and the wet channels (12) included in the cooling filler modules (1) distributed from the top layer to the bottom layer in the cooling tower body (100) gradually decrease layer by layer.

8. A stacked M-cycle dew point evaporation cooling tower according to claim 1, characterized in that: One end of the lower support frame (22) is provided with a side plate (4) fixed to the upper support frame (21) adjacent to the lower layer. The side plate (4) and the part of the upper support frame (21) located outside the side plate (4) are both provided with air flow outlets (41) for discharging air flow. A air volume regulating valve is provided at the air flow outlet (41) provided on the upper support frame (21), and the air volume regulating valve adopts any one or a combination of plug-in type and handle type.

9. A stacked M-cycle dew point evaporation cooling tower according to claim 3, characterized in that: A housing (5) is provided at the outer end of the cooling tower body (100), and several support blocks (51) for adapting to the partition plate (31) are equidistantly arranged in the housing (5).

10. A stacked M-cycle dew point evaporation cooling tower according to claim 1, characterized in that: A pulley device is provided at the bottom of the cooling filler module (1) located at the bottom layer.

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