Dry-wet combined cooling tower

Abstract

The utility model relates to the technical field of industrial circulating water cooling, and discloses a dry-wet combined cooling tower. The dry-wet combined cooling tower comprises a wet cooling device and an air cooling device, the wet cooling device comprises a wet cooling chamber and a spraying assembly, the water inlet end of the spraying assembly is connected with a first water inlet pipeline, and the bottom of the wet cooling chamber is connected with a first water outlet pipeline; the air cooling device comprises a heat exchange assembly and an air cooling assembly, the water inlet end of the heat exchange assembly is connected with a second water inlet pipeline, the water outlet end of the heat exchange assembly is connected with a second water outlet pipeline, the second water outlet pipeline communicates with the first water inlet pipeline, and the second water outlet pipeline communicates with the first water outlet pipeline through a bypass pipeline. According to the dry-wet combined cooling tower provided by the utility model, the wet cooling device and the air cooling device can be independently used or simultaneously used, so that the loss of evaporated water and the loss of corresponding sewage water are reduced, the waste of water resources is further reduced, the influence of evaporated water mist on the surrounding environment is avoided, the service life of surrounding equipment is ensured, and the production cost is reduced. And meanwhile, normal life of nearby people is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial circulating water cooling, in particular to a dry-wet combined cooling tower. Background Art

[0002] A large amount of circulating cooling water is used in the production processes of basic industries such as oil refining, petrochemicals, chemicals, coal chemical industry, electricity, and metallurgy. The circulating cooling water needs to be cooled during the circulation process. At present, the cooling water in the circulating water cooling process mainly uses wet cooling (water cooling) towers. Among them, the wet cooling tower uses the principle of heat transfer between air and water and the absorption of latent heat by water evaporation to achieve a water cooling method for circulating water cooling.

[0003] Conventional wet cooling towers have the disadvantages of evaporation, wind blowing, and sewage loss, and the water consumption reaches 1~2% of the total circulating water. For industrial enterprises located in water-scarce areas, especially coal chemical enterprises in the northwest region, the development of the industry is widely restricted by high water consumption and water resource shortage. At the same time, the water mist evaporated from the wet cooling tower in winter will also affect the surrounding environment, especially the mechanical ventilation wet cooling tower, the tower height is limited, and the floating water mist makes the surrounding equipment and devices more susceptible to corrosion and damage, and ice appears in the severe cold period, affecting the service life and safe operation; some cooling towers are arranged on the side of the road, and the plume of mist floating from the cooling tower in winter causes extremely low visibility on the road, and even causes ice on the road, affecting the safe passage of the road.

[0004] It can be seen that the traditional wet cooling tower water cooling method causes a large amount of water resource waste, and is easy to affect the surrounding environment when used in winter, thereby affecting the service life of surrounding equipment and affecting the normal life of surrounding personnel. Utility Model Content

[0005] In order to solve the technical problems that the traditional wet cooling tower water cooling method causes a large amount of water resource waste and easily affects the surrounding environment when used in winter, thereby affecting the service life of surrounding equipment and affecting the normal life of surrounding people, the utility model provides a dry-wet combined cooling tower.

[0006] The utility model provides a dry-wet combined cooling tower, comprising:

[0007] A wet cooling device, comprising a wet cooling chamber and a spray assembly arranged in the wet cooling chamber, wherein a water inlet end of the spray assembly is connected to a first water inlet pipe, and a bottom of the wet cooling chamber is connected to a first water outlet pipe;

[0008] The air cooling device comprises a heat exchange component arranged outside the wet cold chamber and an air cooling component for cooling the heat exchange component, the water inlet end of the heat exchange component is connected to a second water inlet pipe, the water outlet end of the heat exchange component is connected to a second water outlet pipe, the second water outlet pipe is connected to the first water inlet pipe, and the second water outlet pipe is connected to the first water outlet pipe through a bypass pipe;

[0009] Wherein, the first water outlet pipe and the second water inlet pipe are both connected to the tower water inlet pipe, the first water inlet pipe is provided with a first water inlet valve, the first water outlet pipe is provided with a first water outlet valve, the second water inlet pipe is provided with a second water inlet valve, the second water outlet pipe is provided with a second water outlet valve, and the bypass pipe is provided with a bypass valve.

[0010] Optionally, the heat exchange assembly includes a heat exchange tube bundle, which is arranged in a vertical direction, a water inlet end of the heat exchange tube bundle is connected to the second water inlet pipe, and a water outlet end of the heat exchange tube bundle is connected to the second water outlet pipe.

[0011] Optionally, the air cooling device includes an air cooling chamber arranged outside the wet cold room, the heat exchange component is arranged on the side of the air cooling chamber, and the air cooling component includes air cooling fan blades arranged at the upper end of the air cooling chamber and an air cooling fan drive for driving the air cooling fan blades to rotate.

[0012] Optionally, a cleaning component is provided on the side of the heat exchange component;

[0013] And / or, the outer peripheral cover of the heat exchange component is provided with an antifreeze roller curtain.

[0014] Optionally, an air inlet is provided on the side of the wet and cold chamber, and the wet and cold device includes wet and cold fan blades rotatably arranged at the upper end of the wet and cold chamber and a wet and cold fan driving member for driving the wet and cold fan blades to rotate.

[0015] Optionally, the air cooling device is supported on a side of the wet cold chamber by a bracket, and the bracket avoids the air inlet.

[0016] Optionally, there are multiple air cooling devices, and the multiple air cooling devices are arranged on the periphery of the wet cold chamber.

[0017] Optionally, the wet cooling device includes a wet cooling water collector arranged above the spray assembly.

[0018] Optionally, the wet cooling device includes a wet cooling water spray filler layer arranged below the spray assembly.

[0019] Optionally, a water collecting pool is formed at the bottom of the wet and cold chamber, and the first water outlet pipe is connected to the water collecting pool.

[0020] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0021] In the dry-wet combined cooling tower provided by the utility model, by controlling the opening or closing of the first water inlet valve, the first water outlet valve, the second water inlet valve, the second water outlet valve and the bypass valve, the wet cooling device and the air cooling device can be used separately or simultaneously. In summer, the air cooling device can be used for non-evaporative cooling first, and the cooling water after cooling enters the wet cooling device, thereby reducing the evaporative cooling load of the wet cooling water filling layer in the wet cooling device, reducing the evaporative water loss and the corresponding sewage loss, and thus reducing the waste of water resources; in winter, the air cooling device can be used for non-evaporative cooling, thereby achieving the maximum water-saving effect throughout the year, and avoiding the evaporated water mist from affecting the surrounding environment, ensuring the service life of surrounding equipment, and avoiding affecting the normal life of nearby people. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0023] In order to more clearly illustrate the implementation mode of the utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the dry-wet combined cooling tower described in the embodiment of the utility model;

[0025] Figure 2 It is a top view of the dry-wet combined cooling tower described in the embodiment of the utility model.

[0026] Description of Reference Numerals

[0027] 1. Wet cooling device; 11. Wet cooling frame; 111. First water outlet pipe; 1111. First water outlet valve; 112. Air inlet; 12. Spray assembly; 121. First water inlet pipe; 1211. First water inlet valve; 13. Wet cooling fan blades; 14. Wet cooling fan drive; 15. Wet cooling water collector; 16. Wet cooling water filling layer; 17. Water collecting tank; 2. Air cooling device; 21. Heat exchange assembly; 211. Second water inlet pipe; 2111. Second water inlet valve; 212. Second water outlet pipe; 2121. Second water outlet valve; 213. Bypass pipe; 2131. Bypass valve; 22. Air cooling assembly; 221. Air cooling fan blades; 222. Air cooling fan drive; 23. Air cooling chamber; 3. Cleaning assembly; 4. Antifreeze roller curtain; 5. Bracket; 6. Tower water inlet pipe. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0029] The following description sets forth many specific details to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the implementation methods in the specification are only part of the implementation methods of the present invention, rather than all of the implementation methods.

[0030] like Figure 1 As shown, the dry-wet combined cooling tower provided in the embodiment of the utility model includes a wet cooling device 1 and an air cooling device 2.

[0031] The wet cooling device 1 includes a wet cooling chamber and a spray assembly 12 arranged in the wet cooling chamber, wherein the wet cooling device 1 also includes a wet cooling frame 11, a wet cooling chamber is formed inside the wet cooling frame 11, and the spray assembly 12 is arranged in the wet cooling frame 11. The water inlet end of the spray assembly 12 is connected to a first water inlet pipe 121, and the bottom of the wet cooling chamber is connected to a first water outlet pipe 111. Specifically, the spray assembly 12 includes a horizontally extending spray pipe and a plurality of nozzles arranged at the bottom of the spray pipe, and the plurality of nozzles are arranged along the extension direction of the spray pipe. The high-temperature cooling water entering the first water inlet pipe 121 will be sprayed from top to bottom in the wet cooling chamber through the spray pipe and the nozzle to achieve heat exchange and cooling of the cooling water and the air. In addition, the sprayed cooling water can also contact with other structures in the wet cooling chamber for cooling, which is described in detail below. The cooled cooling water accumulates at the bottom of the wet cooling chamber and is discharged to the target position through the first water outlet pipe 111.

[0032] The air cooling device 2 includes a heat exchange component 21 disposed outside the wet cold room and an air cooling component 22 for cooling the heat exchange component 21. The water inlet end of the heat exchange component 21 is connected to a second water inlet pipe 211, and the water outlet end of the heat exchange component 21 is connected to a second water outlet pipe 212. The second water outlet pipe 212 is connected to the first water inlet pipe 121, and the second water outlet pipe 212 is connected to the first water outlet pipe 111 through a bypass pipe 213. Specifically, cooling water can enter the heat exchange component 21 through the second water inlet pipe 211 to circulate in the heat exchange component 21, and introduce air through the air cooling component 22, and take away the heat of the heat exchange component 21 through the air, thereby achieving cooling of the cooling water. The cooled cooling water can be connected through the second water outlet pipe 212 , and the cooling water flowing out through the second water outlet pipe 212 can selectively enter the first water inlet pipe 121 , or enter the first water outlet pipe 111 through the bypass pipe 213 , so as to be discharged to the target position through the first water outlet pipe 111 .

[0033] The first water outlet pipe 111 and the second water inlet pipe 211 are both connected to the tower water inlet pipe 6, so that the cooling water introduced through the tower water inlet pipe 6 can enter the first water outlet pipe 111 and / or the second water inlet pipe 211. The first water inlet pipe 121 is provided with a first water inlet valve 1211 to control the on-off of the first water inlet pipe 121 through the first water inlet valve 1211. The first water inlet valve 1211 is arranged at the side of the connection between the first water inlet pipe 121 and the second water outlet pipe 212 facing the tower water inlet pipe 6, so that when the first water inlet valve 1211 is closed, the cooling water can enter the first water inlet pipe 121 through the second water outlet pipe 212, and then enter the spray assembly 12; the first water outlet pipe 111 is provided with a first water outlet valve 1211. 111, so as to control the passage of the first water outlet pipe 111 through the first water outlet valve 1111; the second water inlet pipe 211 is provided with a second water inlet valve 2111, so as to control the on-off of the second water inlet pipe 211 through the second water inlet valve 2111; the second water outlet pipe 212 is provided with a second water outlet valve 2121, so as to control the passage of the second water outlet pipe 212 through the second water outlet valve 2121; the bypass pipe 213 is provided with a bypass valve 2131, so as to control the passage of the bypass pipe 213 through the bypass valve 2131.

[0034] The dry-wet combined cooling tower under this design can be used in the following ways according to the needs:

[0035] Usage 1

[0036] Open the second water inlet valve 2111, the second water outlet valve 2121 and the first water outlet valve 1111, and close the first water inlet valve 1211 and the bypass valve 2131. During operation, the cooling water enters the second water inlet pipe 211 through the tower water inlet pipe 6, and then enters the heat exchange component 21. The high-temperature cooling water in the heat exchange component 21 will be cooled by the air cooling component 22. The cooling water with reduced temperature enters the first water inlet pipe 121 through the second water outlet pipe 212, and then enters the spray component 12. The cooling water sprayed by the spray component 12 exchanges heat with the air to further cool it down, and finally it is discharged through the first water outlet pipe 111. In this use mode, the wet cooling device 1 is used in conjunction with the air cooling device 2 to reduce the evaporation and cooling load of the wet cooling water filling layer 16 in the wet cooling device 1, reduce the evaporation water loss and the corresponding sewage loss, and thus reduce the waste of water resources.

[0037] Usage 2

[0038] Open the first water inlet valve 1211 and the first water outlet valve 1111, and close the second water inlet valve 2111, the second water outlet valve 2121 and the bypass valve 2131. During operation, cooling water enters the first water inlet pipe 121 through the tower water inlet pipe 6, and then enters the spray assembly 12. The cooling water sprayed by the spray assembly 12 exchanges heat with the air to further cool down, and finally is discharged through the first water outlet pipe 111. In this use mode, the wet cooling device 1 is used alone.

[0039] Usage 3

[0040] Open the second water inlet valve 2111 and the bypass valve 2131, and close the second water outlet valve 2121, the first water inlet valve 1211, and the first water outlet valve 1111. During operation, cooling water enters the second water inlet pipe 211 through the tower water inlet pipe 6, and then enters the heat exchange component 21. The high-temperature cooling water in the heat exchange component 21 will be cooled by the air cooling component 22, and the cooling water with reduced temperature will be discharged through the second water outlet pipe 212. In this usage mode, the air cooling device 2 is used alone. In winter, non-evaporative cooling can be performed entirely through the air cooling device 2, thereby achieving the maximum water-saving effect throughout the year, and avoiding the evaporated water mist from affecting the surrounding environment, ensuring the service life of surrounding equipment, and avoiding affecting the normal life of nearby personnel.

[0041] In the dry-wet combined cooling tower provided by the utility model, the dry-wet combined cooling principle is adopted, and the respective advantages of wet cooling and air cooling are utilized. By controlling the opening or closing of the first water inlet valve 1211, the first water outlet valve 1111, the second water inlet valve 2111, the second water outlet valve 2121 and the bypass valve 2131, the wet cooling device 1 and the air cooling device 2 can be used separately or simultaneously. In summer, non-evaporative cooling can be performed by the air cooling device 2 first, and the cooling water after cooling enters the wet cooling device 1, thereby reducing the evaporation and cooling load of the wet cooling water filling layer 16 in the wet cooling device 1, reducing the evaporation water loss and the corresponding sewage loss, and thus reducing the waste of water resources; in winter, non-evaporative cooling can be performed entirely by the air cooling device 2, thereby achieving the maximum water-saving effect throughout the year, and avoiding the evaporated water mist from affecting the surrounding environment, ensuring the service life of the surrounding equipment, and avoiding affecting the normal life of nearby personnel.

[0042] In some embodiments, the heat exchange assembly 21 includes a heat exchange tube bundle, which is arranged in a vertical direction, and the water inlet end of the heat exchange tube bundle is connected to the second water inlet pipe 211, and the water outlet end of the heat exchange tube bundle is connected to the second water outlet pipe 212. Specifically, the water inlet end and the water outlet end of the heat exchange tube bundle are both arranged at the bottom end of the heat exchange tube bundle. The heat exchange tube bundle includes a tube bundle and heat exchange fins arranged on the outer periphery of the tube bundle to increase the heat exchange effect of the heat exchange tube bundle.

[0043] In this design, the heat exchange tube bundle is arranged vertically, and the water inlet and outlet of the heat exchange tube bundle are both arranged at the bottom of the heat exchange tube bundle, avoiding the problem of tube bundle blockage caused by the horizontal arrangement of the tube bundle and the accumulation of water impurities in the tube bundle. The vertically arranged heat exchange tube bundle has a fast water discharge speed, which is conducive to the rapid discharge of impurities in the water, avoiding the occurrence of water impurities occupying the flow area of ​​the base tube. In addition, the vertically arranged heat exchange tube bundle adopts side ventilation, so that the air inlet end of the heat exchange tube bundle is located on the side of the heat exchange tube bundle away from the wet cold chamber, so as to make the overall structure of the dry-wet combined cooling tower more compact, while avoiding affecting the air intake of the wet cold chamber.

[0044] In some embodiments, a drain port is provided at the bottom end of the heat exchange tube bundle, and the drain port can be provided to discharge impurities in the heat exchange tube bundle online at regular intervals to ensure the normal use of the heat exchange tube bundle.

[0045] In some embodiments, an inspection cover is provided on the top of the heat exchange tube bundle, so that the base tube of the tube bundle can be regularly inspected and cleaned to ensure the service life of the heat exchange tube bundle.

[0046] In some embodiments, Figure 1 As shown, the air cooling device 2 includes an air cooling chamber 23 disposed outside the wet cold room, and the heat exchange component 21 is disposed on the side of the air cooling chamber 23. Specifically, the heat exchange component 21 is disposed on the side of the air cooling chamber 23 away from the wet cold room, and the side of the heat exchange component 21 away from the air cooling chamber 23 forms an air inlet end. Figure 2 As shown, the air cooling assembly 22 includes an air cooling fan blade 221 arranged at the upper end of the air cooling chamber 23 and an air cooling fan driving member 222 for driving the air cooling fan blade 221 to rotate, wherein the method of driving the air cooling fan blade 221 to rotate by the air cooling fan driving member 222 is a conventional technology in the field, and its working principle is not described in detail here.

[0047] Under this design, as the air-cooling fan blades 221 rotate, the cold air will pass through the heat exchange component 21 through the air inlet end of the heat exchange component 21 and enter the air cooling chamber 23, and then be discharged through the top of the air cooling chamber 23. During the flow, the cold air can take away the heat of the heat exchange component 21, thereby cooling the heat exchange component 21 and the cooling water inside it.

[0048] The dry cooling area of ​​the dry-wet combined cooling tower can be constructed adjacent to the wet cooling device 1 or away from the wet cooling device 1. The layout can be flexibly selected according to the site.

[0049] In some embodiments, a cleaning component 3 is provided on the side of the heat exchange component 21. In this design, the heat exchange component 21 can be cleaned by the cleaning component 3 to avoid dust accumulation, thereby avoiding affecting the heat exchange effect of the heat exchange component 21, ensuring that the heat exchange component 21 can operate for a long time and also ensure the cooling effect. Among them, the cleaning component 3 can be a high-pressure water nozzle, which can be designed according to actual needs.

[0050] In some embodiments, the outer peripheral cover of the heat exchange component 21 is provided with an antifreeze roller shutter 4. The antifreeze roller shutter 4 can protect the normal use of the heat exchange component 21 in a cold environment and increase the service life of the heat exchange component 21. The antifreeze roller shutter 4 is a conventional technology in the art, and its structure is not described in detail again.

[0051] In some embodiments, in combination Figure 1 and Figure 2 As shown, an air inlet 112 is provided on the side of the wet and cold chamber, and the wet and cold device 1 includes a wet and cold fan blade 13 rotatably arranged at the upper end of the wet and cold chamber and a wet and cold fan driving member 14 for driving the wet and cold fan blade 13 to rotate, wherein the method of driving the wet and cold fan blade 13 to rotate by the wet and cold fan driving member 14 is a conventional technology in the field, and its working principle is not described in detail here.

[0052] Under this design, as the wet cooling fan blades 13 rotate, cold air will enter the wet cooling chamber through the air inlet 112 of the wet cooling chamber, and then be discharged through the top of the wet cooling chamber. During the flow, the cold air can take away the heat of the sprinkled cooling water, thereby cooling the cooling water.

[0053] In some embodiments, the air cooling device 2 is supported on the side of the wet cold chamber by the bracket 5, and the bracket 5 avoids the air inlet 112. In this design, the bracket 5 can support the air cooling device 2 on the side of the wet cold chamber so that the air cooling device 2 can be used normally, and at the same time can avoid the air inlet 112 to ensure the normal use of the wet cold device 1. In addition, the top of the air cooling chamber 23 is close to the top of the wet cold chamber. In winter, the hot air discharged from the air cooling device 2 will lift the hot and humid exhaust of the wet cold device 1 and reduce the water vapor floating on the ground around the cooling tower.

[0054] In some embodiments, a water guide eave is provided on the inner wall of the air inlet 112, and the water guide eave is provided to make the falling cooling water flow toward the inside of the wet cold chamber, thereby reducing the falling cooling water from flowing out through the water inlet.

[0055] In some embodiments, there are multiple air cooling devices 2, and the multiple air cooling devices 2 are arranged on the periphery of the wet cold chamber. Specifically, the second water inlet pipes 211 of the multiple air cooling devices 2 are all connected to the tower water inlet pipe 6, the second water outlet pipes 212 of the multiple air cooling devices 2 are all connected to the first water inlet pipe 121, and the second water outlet pipes 212 of the multiple air cooling devices 2 are all provided with bypass pipes 213.

[0056] In this design, the cooling water can be cooled individually or simultaneously by a plurality of air cooling devices 2, thereby increasing the cooling effect of the cooling water.

[0057] In some embodiments, the wet cooling device 1 includes a wet cooling water collector 15 disposed above the spray assembly 12 .

[0058] In this design, the water droplets carried by the rising air can be collected by the wet and cold water collector 15, reducing the impact on the external environment. The wet and cold water collector 15 is a permanent component of the wet and cold device 1, and its structure, material and working principle are not described in detail here.

[0059] In some embodiments, the wet cooling device 1 includes a wet cooling water filling layer 16 disposed below the spray assembly 12 .

[0060] In this design, by providing the wet cooling water filling layer 16 to form a water film, it is possible to facilitate efficient heat exchange between high-temperature cooling water and air, thereby increasing the heat exchange effect of cooling water. The wet cooling water filling layer 16 is a permanent component of the wet cooling device 1, and its structure, material and working principle are not described in detail herein.

[0061] In some embodiments, a water collecting pool 17 is formed at the bottom of the wet and cold chamber, and the first water outlet pipe 111 is connected to the water collecting pool 17. Specifically, the bottom of the wet and cold chamber extends into the ground, and a water collecting pool 17 is formed at the bottom of the wet and cold chamber, so that cooling water can accumulate in the water collecting pool 17 and then be discharged through the first water outlet pipe 111.

[0062] The dry-wet combined cooling tower provided by the utility model adopts a combined cooling system in which air cooling and wet cooling ventilation are completely separated. There is no influence on the cooling tower output due to wind resistance difference, steam bypass, fan selection restriction, etc.; the operation mode of dry-wet combined cooling, dry cooling or wet cooling alone can be flexibly selected, so as to achieve the maximum water-saving and energy-saving effect throughout the year. In addition, independent air-cooling fans and wet cooling fans are configured, and there is no need to set shutters to control the ventilation of dry and wet areas, eliminating the problem of air leakage bypassing the ventilation of wet and cold areas due to lax shutters, and reliably improving the overall cooling capacity of the mechanical tower. The wet cooling fan drive 14 and the air cooling fan drive 222 are independently controlled, and the operation is flexible and reliable, solving the contradiction of fan control conflict caused by cooling and antifreeze protection. In addition, the dry and cold area and the wet and cold area of ​​the dry and wet combined cooling tower are separated, and the air cooling heat dissipation is separated from the wet and hot steam area of ​​the wet and cold area, avoiding rust damage and increasing the service life.

[0063] By using the dry-wet combined cooling tower of the present application, the air cooling device 2 can be fully used in winter, which can achieve a higher water-saving effect, and the average water-saving rate throughout the year can reach more than 40%. At the same time, in winter, the hot air discharged by the air cooling device 2 will lift the hot and humid exhaust of the wet cooling device 1, reducing the water vapor drifting on the ground around the cooling tower. In addition, the complete use of air cooling during the cold period can completely eliminate the phenomenon of conventional wet cooling towers discharging a large amount of water mist.

[0064] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0065] The above description is only a specific embodiment of the utility model, so that those skilled in the art can understand or implement the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments described herein, but should conform to the widest scope consistent with the principles and novel features of the utility model described herein.

Claims

1. A dry-wet combined cooling tower, characterized in that: include: A wet cooling device (1) comprises a wet cooling chamber and a spray assembly (12) arranged in the wet cooling chamber, wherein a water inlet end of the spray assembly (12) is connected to a first water inlet pipe (121), and a bottom of the wet cooling chamber is connected to a first water outlet pipe (111); The air cooling device (2) comprises a heat exchange component (21) arranged outside the wet cold chamber and an air cooling component (22) for cooling the heat exchange component (21), the water inlet end of the heat exchange component (21) being connected to a second water inlet pipe (211), the water outlet end of the heat exchange component (21) being connected to a second water outlet pipe (212), the second water outlet pipe (212) being in communication with the first water inlet pipe (121), and the second water outlet pipe (212) being in communication with the first water outlet pipe (111) via a bypass pipe (213); The first water outlet pipe (111) and the second water inlet pipe (211) are both connected to the tower water inlet pipe (6); the first water inlet pipe (121) is provided with a first water inlet valve (1211); the first water outlet pipe (111) is provided with a first water outlet valve (1111); the second water inlet pipe (211) is provided with a second water inlet valve (2111); the second water outlet pipe (212) is provided with a second water outlet valve (2121); and the bypass pipe (213) is provided with a bypass valve (2131).

2. The dry-wet combined cooling tower according to claim 1, characterized in that: The heat exchange assembly (21) comprises a heat exchange tube bundle, the heat exchange tube bundle is arranged in a vertical direction, the water inlet end of the heat exchange tube bundle is connected to the second water inlet pipe (211), and the water outlet end of the heat exchange tube bundle is connected to the second water outlet pipe (212).

3. The dry-wet combined cooling tower according to claim 1, characterized in that: The air cooling device (2) comprises an air cooling chamber (23) arranged outside the wet cold room, the heat exchange component (21) is arranged on the side of the air cooling chamber (23), and the air cooling component (22) comprises air cooling fan blades (221) arranged at the upper end of the air cooling chamber (23) and an air cooling fan driving member (222) for driving the air cooling fan blades (221) to rotate.

4. The dry-wet combined cooling tower according to claim 1, characterized in that: A cleaning component (3) is provided on the side of the heat exchange component (21); And / or, the outer peripheral cover of the heat exchange component (21) is provided with an antifreeze roller curtain (4).

5. The dry-wet combined cooling tower according to claim 1, characterized in that: An air inlet (112) is provided on a side of the wet and cold chamber, and the wet and cold device (1) comprises wet and cold fan blades (13) rotatably arranged at the upper end of the wet and cold chamber, and a wet and cold fan driving member (14) for driving the wet and cold fan blades (13) to rotate.

6. The dry-wet combined cooling tower according to claim 5, characterized in that: The air cooling device (2) is supported on the side of the wet cold chamber via a bracket (5), and the bracket (5) avoids the air inlet (112).

7. The dry-wet combined cooling tower according to claim 1, characterized in that: There are a plurality of air cooling devices (2), and the plurality of air cooling devices (2) are arranged on the periphery of the wet cold chamber.

8. The dry-wet combined cooling tower according to claim 1, characterized in that: The wet cooling device (1) comprises a wet cooling water collector (15) arranged above the spray assembly (12).

9. The dry-wet combined cooling tower according to claim 1, characterized in that: The wet cooling device (1) comprises a wet cooling water spray filler layer (16) arranged below the spray assembly (12).

10. The dry-wet combined cooling tower according to claim 1, characterized in that: A water collecting pool (17) is formed at the bottom of the wet cold chamber, and the first water outlet pipe (111) is in communication with the water collecting pool (17).

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