Blowing-type cooling tower with white smoke eliminating device

Abstract

The utility model provides a blowing-type cooling tower with a white smoke eliminating device, which comprises a tower body, the white smoke eliminating device, a spraying layer, a packing layer, a water separating layer and an air duct are sequentially arranged in the tower body from top to bottom, and a plurality of supporting legs are arranged at the bottom of the tower body; the spraying layer comprises a first water inlet pipe and a plurality of first branch pipes, the plurality of first branch pipes are arranged in the tower body at intervals, the plurality of first branch pipes are communicated with the first water inlet pipe, and a plurality of first nozzles are arranged on the first branch pipes at intervals; the water diversion layer comprises a plurality of water diversion grooves arranged at intervals, the length and the laying width of the water diversion grooves are both larger than the diameter of the air duct, each water diversion groove comprises a V-shaped groove and a flow guide plate, the flow guide plate is obliquely connected with one side of the V-shaped groove, and the flow guide plate is located above the V-shaped groove in the next water diversion groove; the air duct is communicated with the bottom of the tower body, and a fan is arranged in the air duct; a water storage tank is formed between the air duct and the inner bottom of the tower body, and the bottom of the water storage tank communicates with a water outlet pipe; the problems that a traditional cooling tower is common in cold deficiency effect, large in energy consumption and the like are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling tower equipment, in particular to a blast-type cooling tower with a whitening device. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to lower the water temperature. It uses the heat exchange between water and air flow to generate steam, and the steam evaporates and takes away the heat to achieve the principles of evaporative heat dissipation, convection heat transfer and radiation heat transfer to dissipate the waste heat generated in industry or refrigeration and air conditioning to lower the water temperature. The device is generally barrel-shaped, hence the name cooling tower.

[0003] Most of the existing cooling towers place the fan on the top, and the fan draws air inside the cooling tower to generate negative pressure inside the cooling tower so that the air comes into contact with the liquid to be cooled. Since there are many air intake sources inside the cooling tower, the amount of air in contact with the liquid to be cooled is limited, and the cooling effect is general. At the same time, a larger power fan is required to meet the requirement, and the energy consumption is high. At the same time, the fan is placed on the top of the cooling tower, which is not only inconvenient to maintain, but also has a high center of gravity, which can easily cause the cooling tower to be unstable. Utility Model Content

[0004] The utility model aims to provide a blast-type cooling tower with a whitening device, which solves the problems of a traditional cooling tower, such as general cooling effect and high energy consumption.

[0005] The embodiment of the utility model is realized by the following technical scheme: a blast-type cooling tower with a whitening device, comprising a tower body, wherein the whitening device, a spray layer, a filling layer, a water separation layer and a wind tube are sequentially arranged in the tower body from top to bottom, and a plurality of legs are arranged at the bottom of the tower body;

[0006] The spray layer includes a first water inlet pipe and a plurality of first branch pipes, the plurality of first branch pipes are arranged in the tower body at intervals, the plurality of first branch pipes are all connected to the first water inlet pipe, and a plurality of first nozzles are arranged at intervals on the first branch pipe;

[0007] The water-dividing layer includes a plurality of water-dividing grooves arranged at intervals, the lengths and laying widths of the plurality of water-dividing grooves are greater than the diameter of the wind tube, the water-dividing grooves include a V-shaped groove and a guide plate, the guide plate is obliquely connected to one side of the V-shaped groove, and the guide plate is located above the V-shaped groove in the next water-dividing groove;

[0008] The wind tube is communicated with the bottom of the tower body, and a fan is arranged in the wind tube; a water storage tank is formed between the wind tube and the inner bottom of the tower body, and a water outlet pipe is arranged at the bottom of the water storage tank.

[0009] Furthermore, the descaling device comprises a second water inlet pipe and a plurality of second branch pipes, the plurality of second branch pipes are arranged at intervals in the tower body, the plurality of second branch pipes are all connected to the second water inlet pipe, and a plurality of second nozzles are arranged at intervals on the second branch pipes;

[0010] The de-whitening device also includes a de-whitening water curtain, and the de-whitening water curtain is located below the plurality of the second nozzles.

[0011] Furthermore, the second water inlet pipe is connected to a water pump, and the water inlet end of the water pump is connected to the water storage tank or the tap water pipe.

[0012] Furthermore, a water supply pipe is provided at the top of the water storage tank, the height of the connection point between the water supply pipe and the water storage tank does not exceed the upper top of the wind tube, and the end of the water supply pipe extends into the water storage tank and is provided with a float valve.

[0013] Furthermore, the packing layer includes cooling tower packing, a steel wire mesh and a packing support, the packing support is arranged inside the tower body, the steel wire mesh is laid on the packing support, and the cooling tower packing is laid on the steel wire mesh.

[0014] Furthermore, a maintenance walkway is arranged on the top of the tower body, a guardrail is arranged around the top of the tower body, and a ladder is arranged on the outer wall of the tower body.

[0015] Furthermore, a concrete foundation is provided at the bottom of the legs.

[0016] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0017] 1. The fan is placed at the bottom of the tower to blow air into the tower under positive pressure. The air volume is large and concentrated, and can contact the cooling water to the greatest extent. Compared with the traditional negative pressure cooling method, it has lower energy consumption and higher air extraction efficiency, which can greatly save energy and complete the cooling task more efficiently. At the same time, the fan duct and other air transport devices are placed at the bottom of the tower, which increases the stability of the overall cooling tower, improves the earthquake resistance level, and facilitates maintenance, avoiding high-altitude operations, and greatly improves the safety factor of the staff.

[0018] 2. Use the cooling water of the cooling tower itself to distribute water to the de-whitening device, which saves water resources, is not easy to float, eliminates white mist, and meets environmental protection requirements. The cooling water is pumped into the water tank or the water pipe by a water pump, transported to the second water inlet pipe, and sprayed from the second nozzles to the de-whitening water curtain through a plurality of second branch pipes, liquefied in contact with the cooling water, and then falls through the spray layer, the packing layer and the water separation layer in turn. The air continuously pumped upward by the fan is cooled and collected in the water tank to realize the recycling of the white mist. The de-whitening device can eliminate a large amount of white mist generated by the spray layer in winter, reduce the evaporation of water vapor, save water, and the structure of the de-whitening water curtain also has the effect of reducing the noise of the cooling tower. At the same time, the hot water medium sprayed from the spray layer has two cooling processes, downstream and countercurrent. The liquid phase is directly cooled downward, and the gas phase white mist is first cooled and liquefied by the de-whitening device and then continues to be cooled downward. At the same time, part of the water mist will be suspended in the tower, which prolongs the heat exchange time between hot water and gas, thereby improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the internal structure of a blast-type cooling tower with a whitening device provided by the utility model;

[0021] Figure 2 for Figure 1 A magnified schematic diagram of the structure at center A;

[0022] Figure 3 for Figure 1 Structural schematic diagram of the cross section at BB;

[0023] Figure 4 A schematic diagram of the side structure of a blast-type cooling tower with a whitening device provided by the utility model;

[0024] Icons: 1. Tower body, 11. Water storage tank, 12. Maintenance walkway, 13. Guardrail, 14. Ladder, 2. Whitening device, 21. Second water inlet pipe, 22. Second branch pipe, 23. Second nozzle, 24. Whitening water curtain, 25. Water pump, 3. Spray layer, 31. First water inlet pipe, 32. First branch pipe, 33. First nozzle, 4. Packing layer, 41. Cooling tower packing, 42. Wire mesh, 43. Packing bracket, 5. Water distribution layer, 51. Water distribution trough, 511. V-shaped groove, 512. Guide plate, 6. Wind duct, 61. Fan, 7. Leg, 71. Concrete foundation, 8. Outlet pipe, 9. Water supply pipe, 91. Float valve. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Reference Figures 1 to 4 As shown, the present embodiment provides a blast-type cooling tower with a whitening device, comprising a tower body 1, in which a whitening device 2, a spray layer 3, a packing layer 4, a water-dividing layer 5 and a wind tube 6 are arranged in sequence from top to bottom. The tower body 1 adopts a main body welded with a metal frame, and then a 304 stainless steel panel is used. A glass fiber reinforced plastic waterproof lining is arranged on the inner side of the panel to form a cylindrical tower body 1, and then glass glue is applied at the gap to make the tower body 1 a fully enclosed structure, which can not only reduce leakage, but also prevent other garbage from entering the water circulation system. The water quality is relatively clean, and direct sunlight is avoided, thereby reducing moss formation and extending the service life of the entire tower; at the same time, the closed tower body has a lower water drift rate than the traditional cooling tower.

[0028] like Figure 1 and 4 As shown, a plurality of legs 7 are provided at the bottom of the tower body 1, and a concrete foundation 71 is provided at the bottom of the legs 7. The concrete foundation 71 can separate the metal legs 7 from the ground, thereby ensuring the overall stability of the cooling tower and preventing the legs 7 and the tower body 1 from being corroded by ground water.

[0029] like Figure 1 and2 As shown, the spray layer 3 includes a first water inlet pipe 31 and a plurality of first branch pipes 32, the plurality of first branch pipes 32 are arranged at intervals in the tower body 1, the plurality of first branch pipes 32 are all connected to the first water inlet pipe 31, and a plurality of first nozzles 33 are arranged at intervals on the first branch pipe 32; the first water inlet pipe 31 transports liquid to be cooled, which is diverted through the plurality of first branch pipes 32, and then sprayed out from the plurality of first nozzles 33, and evenly enters the packing layer 4.

[0030] like Figure 1 As shown, the packing layer 4 includes a cooling tower packing 41, a steel mesh 42 and a packing support 43. The packing support 43 is arranged inside the tower body 1. The steel mesh 42 is laid on the packing support 43. The cooling tower packing 41 is laid on the steel mesh 42. The packing support 43 is mainly a frame structure. The steel mesh 42 and the packing support 43 constitute a support surface and facilitate the circulation of the water to be cooled and the air, forming a good support foundation for the cooling tower packing 41. More specifically, the cooling tower packing 41 mainly adopts plastic film packing, which is characterized by good corrosion resistance and can be used for a long time. Since it increases the contact area between water and air, prolongs the residence time of cooling water, and then increases the heat exchange, it has better cooling capacity. At the same time, it also has the effect of uniform water distribution and impedance silencing. The water-spraying packing reduces the noise of the fan located below in the cooling tower.

[0031] like Figure 1 As shown, the water-dividing layer 5 includes a plurality of water-dividing grooves 51 arranged at intervals, the lengths and laying widths of the plurality of water-dividing grooves 51 are both greater than the diameter of the wind tube 6, the water-dividing grooves 51 include a V-shaped groove 511 and a guide plate 512, the guide plate 512 is obliquely connected to one side of the V-shaped groove 511, and the guide plate 512 is located above the V-shaped groove 511 in the next water-dividing groove 51; in specific implementation, after the cooling water passes through the packing layer 4, it falls into the plurality of water-dividing grooves 51 in the water-dividing layer 5, and since the water-dividing grooves 51 are arranged at intervals, the guide plates 512 on the water-dividing grooves 51 mainly block the gaps between adjacent V-shaped grooves 511, and guide the cooling water into the V-shaped grooves 511, and prevent the cooling water from passing through the gaps between adjacent V-shaped grooves 511 into the wind tube 6, and the liquid gathered in the V-shaped grooves 511 flows from both ends or the lower end thereof to the bottom of the tower body 1.

[0032] like Figure 1 and 3 As shown, a water storage tank 11 is formed between the wind tube 6 and the inner bottom of the tower body 1, and a water outlet pipe 8 is connected to the bottom of the water storage tank 11. In specific implementation, the cooled water left from the water separation layer 5 is collected in the water storage tank 11, and then pumped out from the water outlet pipe 8 to enter the cooling system to cool and heat other devices, and the hot water discharged from the cooling system is input into the first water inlet pipe 31.

[0033] More specifically, the wind duct 6 is connected to the bottom of the tower body 1, and a fan 61 is arranged in the wind duct 6; the wind duct 6 and the fan 61 constitute a blower fan 61, which supplies air into the tower body 1 by sucking the air from the outer bottom of the tower body 1 under positive pressure. The air passes through several water diversion grooves 51 of the water diversion layer 5, and is transported obliquely upward through the obliquely arranged guide plates 512, and cross-collides with the cooling water that vertically and evenly enters the water diversion layer 5 from the packing layer 4, thereby replacing heat. Then, when passing through the packing layer 4, the heat of the cooling water in the packing layer 4 continues to be replaced. After passing through the packing layer 4, the air continues to pass through the spray layer 3 and the dewhitening device 2.

[0034] The fan 61 is placed at the bottom of the tower body 1 to blow air into the tower at positive pressure. The air volume is large and concentrated, and can contact the cooling water to the greatest extent. Compared with the traditional negative pressure cooling method, it has lower energy consumption and higher exhaust efficiency, which can greatly save energy, thereby completing the cooling task more efficiently.

[0035] At the same time, the fan 61, the wind duct 6 and other air transport devices are placed at the bottom of the tower, which increases the stability of the overall cooling tower, improves the earthquake resistance level, facilitates maintenance, avoids high-altitude operations, and greatly improves the safety factor of the staff.

[0036] More specifically, Figure 1 and 2 As shown, the de-whitening device 2 includes a second water inlet pipe 21 and a plurality of second branch pipes 22, the plurality of second branch pipes 22 are arranged at intervals in the tower body 1, the plurality of second branch pipes 22 are connected to the second water inlet pipe 21, and a plurality of second nozzles 23 are arranged at intervals on the second branch pipes 22; the de-whitening device 2 also includes a de-whitening water curtain 24, and the de-whitening water curtain 24 is located below the plurality of second nozzles 23. The second water inlet pipe 21 is connected to a water pump 25, and the water inlet end of the water pump 25 is connected to the water storage tank 11 or the tap water pipe.

[0037] During the specific implementation, the cooling water of the cooling tower itself is used to distribute water to the dewhitening device 2, which saves water resources, is not easy to float water, eliminates white mist, and meets environmental protection requirements. The cooling water is pumped into the water tank 11 or the tap water pipe through the water pump 25, and is transported to the second water inlet pipe 21. It is diverted through several second branch pipes 22 and sprayed from several second nozzles 23 to the dewhitening water curtain 24. The dewhitening water curtain 24 is mainly composed of polymer water curtain paper. The wet paper curtain is a special product. After special treatment, it has high structural strength and corrosion resistance. The service life is more than six years. The lower resistance and air permeability can be seen from the light transmittance of the water curtain paper. This shows that the water curtain paper has excellent air permeability and wettability, which can ensure that water evenly penetrates the entire water curtain wall. The water curtain is a three-dimensional space design of paper that provides the maximum surface area for evaporation for heat exchange between water and air. It has high water resistance and a large evaporation ratio.

[0038] The white mist generated from the spray layer 3 moves upward with the fan 61 and enters the white mist removal water curtain 24, liquefies in contact with the cooling water, and then falls through the spray layer 3, the packing layer 4 and the water separation layer 5 in turn. The air continuously pumped upward by the fan 61 is cooled and collected in the water storage tank 11, so that the white mist is recycled. The white mist removal device 2 can eliminate a large amount of white mist generated by the spray layer 3 in winter, reduce the effect of water vapor evaporation, save water, and further reduce the water drift rate. At the same time, the structure of the white mist removal water curtain 24 also has the effect of reducing the noise of the cooling tower. At the same time, due to winter or low temperature weather, more white mist is generated, and some people who do not understand it may think that polluted gases are being discharged. After the white mist is eliminated by the white mist removal device 2, unnecessary misunderstandings and complaints can be reduced.

[0039] The hot water medium sprayed from the spray layer 3 has two cooling processes: downstream and countercurrent. The liquid phase is cooled directly downward, and the gaseous white mist is first cooled and liquefied by the dewhitening device 2 and then continues to be cooled downward. At the same time, part of the water mist will be suspended in the tower, which prolongs the heat exchange time between the hot water and the gas, thereby improving the cooling effect.

[0040] More specifically, Figure 1 and 3 As shown, a water supply pipe 9 is connected to the top of the water storage tank 11. The height of the connection between the water supply pipe 9 and the water storage tank 11 does not exceed the top of the wind tube 6. The end of the water supply pipe 9 extends into the water storage tank 11 and is provided with a float valve 91. The water supply pipe 9 is used to supplement the evaporation loss of the cooling tower, replenish the water volume, and ensure the normal operation of the cooling tower. When the water level in the water storage tank 11 decreases and the water volume is insufficient, the float valve 91 is opened and tap water is poured in. When the water volume is sufficient, the float valve 91 is automatically closed, thereby maintaining the water curtain in the water storage tank 11 within an appropriate range.

[0041] like Figure 1 and 4 As shown, a maintenance walkway 12 is provided on the top of the tower body 1, and a guardrail 13 is also provided around the top of the tower body 1 to prevent maintenance personnel from falling. A ladder 14 is provided on the outer wall of the tower body 1 to facilitate climbing to the top of the tower body 1 to perform maintenance operations on the top and interior of the tower body 1.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blast type cooling tower with a whitening device, characterized in that: The tower body (1) comprises a tower body (1), wherein a descaling device (2), a spraying layer (3), a packing layer (4), a water separation layer (5) and a wind tube (6) are arranged in sequence from top to bottom, and a plurality of supporting legs (7) are arranged at the bottom of the tower body (1); The spray layer (3) comprises a first water inlet pipe (31) and a plurality of first branch pipes (32), wherein the plurality of first branch pipes (32) are arranged at intervals in the tower body (1), the plurality of first branch pipes (32) are all connected to the first water inlet pipe (31), and a plurality of first spray heads (33) are arranged at intervals on the first branch pipes (32); The water dividing layer (5) comprises a plurality of water dividing grooves (51) arranged at intervals, the lengths and laying widths of the plurality of water dividing grooves (51) are both greater than the diameter of the wind tube (6), the water dividing groove (51) comprises a V-shaped groove (511) and a guide plate (512), the guide plate (512) is obliquely connected to one side of the V-shaped groove (511), and the guide plate (512) is located above the V-shaped groove (511) in the next water dividing groove (51); The wind tube (6) is in communication with the bottom of the tower body (1), and a fan (61) is arranged in the wind tube (6); a water storage tank (11) is formed between the wind tube (6) and the inner bottom of the tower body (1), and a water outlet pipe (8) is arranged in communication with the bottom of the water storage tank (11).

2. A blast-type cooling tower with a whitening device according to claim 1, characterized in that: The desulphurizing device (2) comprises a second water inlet pipe (21) and a plurality of second branch pipes (22), wherein the plurality of second branch pipes (22) are arranged at intervals in the tower body (1), the plurality of second branch pipes (22) are all connected to the second water inlet pipe (21), and a plurality of second nozzles (23) are arranged at intervals on the second branch pipes (22); The de-whitening device (2) further comprises a de-whitening water curtain (24), and the de-whitening water curtain (24) is located below the plurality of the second nozzles (23).

3. A blast-type cooling tower with a whitening device according to claim 2, characterized in that: The second water inlet pipe (21) is connected to a water pump (25), and the water inlet end of the water pump (25) is connected to the water storage tank (11) or the tap water pipe.

4. A blast-type cooling tower with a whitening device according to claim 3, characterized in that: A water supply pipe (9) is provided at the top of the water storage tank (11), the height of the connection point between the water supply pipe (9) and the water storage tank (11) does not exceed the top of the wind tube (6), and the end of the water supply pipe (9) extends into the water storage tank (11) and is provided with a float valve (91).

5. The blast-type cooling tower with a whitening device according to claim 4, characterized in that: The packing layer (4) comprises cooling tower packing (41), a steel wire mesh (42) and a packing support (43); the packing support (43) is arranged inside the tower body (1); the steel wire mesh (42) is laid on the packing support (43); and the cooling tower packing (41) is laid on the steel wire mesh (42).

6. A blast-type cooling tower with a whitening device according to claim 5, characterized in that: The top of the tower body (1) is provided with an inspection walkway (12), the top of the tower body (1) is surrounded by a guardrail (13), and the outer wall of the tower body (1) is provided with a ladder (14).

7. A blast-type cooling tower with a whitening device according to claim 6, characterized in that: A concrete foundation (71) is provided at the bottom of the supporting leg (7).

Images