Condensation module for fog-eliminating and water-saving cooling tower and cooling tower

Abstract

The present invention relates to the technical field of cooling towers, and discloses a condensation module and a cooling tower for a fog-eliminating and water-saving cooling tower, including: a dry area flow channel and a wet area flow channel; the dry area flow channel and the wet area flow channel are parallel to each other and alternately distributed; the air inlet of the wet area flow channel is arranged at the bottom of the condensation module for introducing the hot and humid air in the cooling tower; the air outlet of the wet area flow channel is arranged at the top of the condensation module; the air inlet of the dry area flow channel is arranged at the side of the condensation module for introducing external dry and cold air; the air outlet of the dry area flow channel is arranged at the top of the condensation module; a baffle is arranged at one end of the air outlet of the dry area flow channel close to the side of the condensation module; the dry area flow channel has a plurality of shunt channels that overlap in sequence. In the present invention, the air inlet of the dry area flow channel of the condensation module is arranged on the side wall of the condensation module, and the air inlet of the wet area flow channel is arranged at the bottom of the condensation module, so that the ambient cold air can directly enter the air inlet of the dry area flow channel, improving the fog-eliminating performance of the cooling tower.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling towers, and particularly to a condensation module for a fog-eliminating and water-saving cooling tower and a cooling tower. Background Art

[0002] A fog-eliminating and water-saving mechanically ventilated cooling tower is a cooling tower that has the function of fog elimination and water saving after taking fog-eliminating or water-saving measures on the basis of conventional wet mechanically ventilated cooling tower products. As an environment-friendly product, it has been widely used in industrial fields such as petrochemical, electric power, and metallurgy, as well as in daily life. With the country's strong advocacy of a conservation and environment-friendly economic development model, the fog-eliminating and water-saving transformation of cooling towers has gradually become the only choice for industrial enterprises. The condensation module type fog-eliminating and water-saving cooling tower has gradually occupied a place due to its low transformation cost, mature technical form, and convenient construction conditions.

[0003] A condensation module type fog-eliminating and water-saving cooling tower refers to a mechanically ventilated cooling tower that is simultaneously provided with a condensation module and a water distribution filler, and uses the cold air in the environment to perform indirect heat exchange with the hot and humid air in the wet area to realize the condensation of the hot and humid air, thereby playing the role of fog elimination and water saving. The hot and humid air that has been fully heat-exchanged by the water distribution filler and the cold air in the environment perform non-contact heat transfer in the condensation module. Among them, the temperature of the hot and humid air decreases and the moisture content decreases; the temperature of the cold air in the environment increases and the moisture content remains unchanged. After exiting the condensation module, it is mixed and discharged out of the tower by the fan. Since the temperature of the mixed wet air is lower and the relative humidity is smaller, it is difficult to form fog when contacting the outside ambient air again. The fog-eliminating working condition is generally carried out in autumn and winter, and the quality of its effect is affected by the flow rate ratio of the dry cold air and the hot and humid air in the condensation module. The larger the flow rate ratio of the dry cold air, the better the fog-eliminating effect.

[0004] Since the condensation module needs to be arranged in the tower and occupies the air chamber space, and the hot and humid air and the dry cold air generally flow in the reverse direction, the original height of the air chamber of the cooling tower needs to meet certain requirements, that is, on the premise of being greater than the height of the condensation module, a certain dry area air inlet space is left, and the larger the space, the better the effect. The existing condensation module makes the cold air channel and the hot air channel perpendicular to each other, and allows the cold air in the environment and the hot and humid air in the tower to perform indirect heat exchange. Since the condensation module only has channels perpendicular to each other, the condensation module can only be placed vertically in the tower, and then the cold air inlet channel in the environment is connected under the cold air channel of the condensation module. Summary of the Invention

[0005] The purpose of the present invention is to overcome the problem of less cold air intake in the environment of the condensation module existing in the prior art.

[0006] To achieve the above object, the present invention provides a condensation module for a fog elimination and water-saving cooling tower, comprising a dry area flow channel and a wet area flow channel; the dry area flow channels and the wet area flow channels are parallel to each other and alternately distributed; each dry area flow channel has a dry area flow channel air inlet and a dry area flow channel air outlet, and each wet area flow channel has a wet area flow channel air inlet and a wet area flow channel air outlet;

[0007] The wet area flow channel air inlet is arranged at the bottom of the condensation module for introducing the hot and humid air in the cooling tower; the wet area flow channel air outlet is arranged at the top of the condensation module;

[0008] The dry area flow channel air inlet is arranged at the side of the condensation module for introducing the external dry and cold air; the dry area flow channel air outlet is arranged at the top of the condensation module; a baffle is arranged at one end of the dry area flow channel air outlet close to the side of the condensation module;

[0009] The dry area flow channel has a plurality of shunt channels overlapping in sequence.

[0010] The present invention further designs the condensation module as follows to improve the condensation performance of the condensation module.

[0011] As a further design of the present invention, the plurality of shunt channels are a bottom shunt channel, a middle shunt channel and a top shunt channel.

[0012] As a further design of the present invention, the height ratio among the top shunt channel, the middle shunt channel and the bottom shunt channel is 5 - 8:4 - 5:8 - 15.

[0013] As a further design of the present invention, the area ratio of the dry area flow channel air outlets among the top shunt channel, the middle shunt channel and the top shunt channel is 1 - 3:25 - 40:10 - 40.

[0014] As a further design of the present invention, the top shunt channel and the middle shunt channel are separated by a guiding strip; the middle shunt channel and the bottom shunt channel are separated by a guiding strip.

[0015] As a further design of the present invention, the guiding strip is divided into a straight section and a guiding section; the straight section is parallel to the baffle and extends to the dry area flow channel air inlet at the side of the condensation module; the guiding section is an arc structure and extends to the dry area flow channel air outlet at the top of the condensation module.

[0016] As a further design of the present invention, the condensation module is made of PVC or PP material.

[0017] As a further design of the present invention, the area of the baffle increases sequentially from the two corners of the condensation module towards the middle.

[0018] As a further design of the present invention, the condensation module is in an overall rectangular structure; the wet area flow channels are symmetrically distributed with respect to the center of the condensation module.

[0019] On the other hand, the present invention provides a cooling tower, in which the above-mentioned condensation module is arranged.

[0020] In the present invention, the air inlet of the dry area flow channel of the condensation module is arranged on the side wall of the condensation module, and the air inlet of the wet area flow channel is arranged at the bottom of the condensation module, so that ambient cold air can directly enter the air inlet of the dry area flow channel, improving the fog elimination performance of the cooling tower.

[0021] Dry area flow channel air inlets are arranged on all four sides of the condensation module of the present invention, and air can enter from multiple directions simultaneously, further increasing the air intake of ambient cold air.

[0022] The dry area flow channel of the present invention has three flow channels, namely the upper, middle and lower flow channels, and the height of the flow channel air inlets increases sequentially from top to bottom, which can effectively increase the heat exchange area and improve the heat exchange performance.

[0023] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent specific embodiment part. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other embodiments can be obtained based on these drawings without creative efforts.

[0025] Figure 1 is a perspective view of the condensation module for a fog elimination and water saving cooling tower provided by an embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of the condensation module for a fog elimination and water saving cooling tower provided by an embodiment of the present invention after being disassembled;

[0027] Figure 3 provided for an embodiment of the present invention Figure 2 is an enlarged view of a corner of the condensation module in.

[0028] Description of the Reference Numerals in the Drawings

[0029] 1 - dry area flow channel; 11 - dry area flow channel air inlet; 12 - dry area flow channel air outlet; 13 - top shunt channel; 14 - middle shunt channel; 15 - bottom shunt channel; 2 - wet area flow channel; 22 - wet area flow channel air outlet; 3 - baffle; 4 - guiding strip; 41 - straight segment; 42 - guiding segment. Detailed Description of the Embodiments

[0030] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0031] Embodiment 1

[0032] The present invention provides a condensation module for a fog-eliminating and water-saving cooling tower. As Figure 1 shown, the condensation module includes a dry zone flow channel 1 for ambient cold air to flow through and a wet zone flow channel 2 for the humid and hot air inside the cooling tower to flow through. The dry zone flow channel 1 and the wet zone flow channel 2 are parallel to each other and are alternately distributed. The dry zone flow channel 1 has a dry zone flow channel air inlet 11 and a dry zone flow channel air outlet 12. The dry zone flow channel air inlet 11 is arranged on the side of the condensation module, and the dry zone flow channel air outlet 12 is arranged at the top of the condensation module. The wet zone flow channel 2 has a wet zone flow channel air inlet and a wet zone flow channel air outlet 22. The wet zone flow channel air inlet is arranged at the bottom of the condensation module, so that the humid and hot air inside the cooling tower directly flows into the condensation module when rising. The wet zone flow channel air outlet 22 is arranged at the top of the condensation module, and the cooled humid and hot air inside the condensation module is discharged therefrom and mixed with the heat-exchanged ambient cold air discharged from the dry zone flow channel air outlet 12, and finally discharged through the top of the cooling tower. As Figure 2 shown, considering that the ambient cold air directly enters the dry zone flow channel 1 from the side of the condensation module and then is discharged from the top of the condensation module, a baffle 3 is provided at a position near the side of the condensation module at the air outlet in the dry zone flow channel 1, and the dry zone flow channel 1 is arranged as a plurality of overlapping shunt channels in sequence.

[0033] In this embodiment, as Figure 3 shown, the dry zone flow channel 1 is divided into a bottom shunt channel 15, a middle shunt channel 14 and a top shunt channel 13 that overlap in sequence. Considering the heat exchange area and the position of the flow channel in the condensation module, the ratio of the height of the top shunt channel 13, the height of the middle shunt channel 14 and the height of the bottom shunt channel 15 is 5-8:4-5:8-15.

[0034] In this embodiment, considering the positions of the bottom shunt channel 15, the middle shunt channel 14 and the top shunt channel 13 in the condensation module and the positions in contact with the humid and hot air, the ratio of the air outlet area of the top shunt channel 13, the air outlet area of the middle shunt channel 14 and the air outlet area of the bottom shunt channel 15 of the dry zone flow channel 1 is 1-3:25-40:10-40.

[0035] In this embodiment, the top flow divider 13 and the middle flow divider 14 are separated by the guiding strip 4, and the middle flow divider 14 and the bottom flow divider 15 are separated by the guiding strip 4 to form. The guiding strip 4 has a straight segment 41 and a guiding segment 42. The straight segment 41 is arranged in the dry zone flow channel 1 parallel to the baffle 3 at the top of the dry zone flow channel 1. One end of the straight segment 41 extends to the position of the air inlet 11 of the dry zone flow channel, and the other end extends towards the center of the condensation module and contacts the guiding segment 42. The guiding segment 42 is in a quarter-circular arc structure. One end of the guiding segment 42 contacts the straight segment 41, and the other end extends to the position of the air outlet 12 of the dry zone flow channel. At the same time, the dry zone flow channel 1 of the present application can also be set to more flow dividers, not limited to the upper, middle, and lower three flow channels.

[0036] In this embodiment, the condensation module can be made of PVC or PP materials. Other materials can also be selected for the condensation module material, but it should meet the requirements that the oxygen index is greater than or equal to 40, it is not easy to deform, and the heat transfer coefficient is high.

[0037] In this embodiment, the condensation module is in an overall rectangular structure, and the dry zone flow channels 1 are symmetrically distributed about the center of the condensation module. The dry zone flow channels 1 and the wet zone flow channels 2 of the condensation module can be separated by a partition.

[0038] In this embodiment, since the condensation module is rectangular as a whole, the area of the dry zone flow channels 1 at the four corners of the condensation module is smaller than the area of the dry zone flow channels 1 in the middle of the condensation module. Therefore, the area of the baffle 3 should also gradually increase from the two corners of the condensation module to the middle position corresponding to the two corners of the condensation module. The upper baffle can maximize the heat exchange area between the ambient cold air in the top flow divider 13 and the hot and humid air in the wet zone flow channel 2, and can also make the ambient cold air stay in the top flow divider 13 for as long as possible.

[0039] Embodiment Two

[0040] This embodiment provides a cooling tower. The cooling tower has the condensation module described in Embodiment One. The condensation module can be laid flat above the water collector of the cooling tower, and ventilation openings are provided on the side walls of the existing cooling tower to directly connect the ventilation openings with the air inlet 11 of the dry zone flow channel of the condensation module, so that the cooling tower takes in air from all four sides, improving the air intake efficiency of the ambient cold air of the cooling tower.

[0041] The above are the exemplary embodiments disclosed by the present invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments disclosed by the present invention defined by the claims. The functions, steps, and / or actions of the method claims according to the disclosed embodiments here do not need to be executed in any specific order. In addition, although the elements disclosed by the embodiments of the present invention can be described or claimed in individual form, they can also be understood as multiple unless explicitly limited to the singular.

[0042] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other variations in different aspects of the embodiments of the present invention as above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present invention shall be included within the protection scope of the embodiments of the present invention.

Claims

1. A condensation module for a fog-eliminating and water-saving cooling tower, characterized in that It includes a dry area flow channel and a wet area flow channel; the dry area flow channels and the wet area flow channels are parallel to each other and alternately distributed; each dry area flow channel has a dry area flow channel air inlet and a dry area flow channel air outlet, and each wet area flow channel has a wet area flow channel air inlet and a wet area flow channel air outlet; The wet area flow channel air inlet is arranged at the bottom of the condensation module and is used for introducing the hot and humid air in the cooling tower; the wet area flow channel air outlet is arranged at the top of the condensation module; The dry area flow channel air inlet is arranged at the side of the condensation module and is used for introducing external dry and cold air; the dry area flow channel air outlet is arranged at the top of the condensation module; a baffle is arranged at one end of the dry area flow channel air outlet close to the side of the condensation module, and the area of the baffle increases sequentially from the two corners of the condensation module to the middle; The dry area flow channel has a plurality of shunt channels that overlap in sequence.

2. The condensation module for a fog-eliminating and water-saving cooling tower according to claim 1, wherein The plurality of shunt channels are a bottom shunt channel, a middle shunt channel, and a top shunt channel.

3. The condensation module for a fog-eliminating and water-saving cooling tower according to claim 2, characterized in that, The height ratio among the top shunt channel, the middle shunt channel, and the bottom shunt channel is 5-8:4-5:8-15.

4. The condensation module for a fog-eliminating and water-saving cooling tower according to claim 2, characterized in that, The area ratio of the dry area flow channel air outlets among the top shunt channel, the middle shunt channel, and the top shunt channel is 1-3:25-40:10-40.

5. The condensation module for a fog-eliminating and water-saving cooling tower according to claim 2, characterized in that, The top shunt channel and the middle shunt channel are separated by a guiding strip; the middle shunt channel and the bottom shunt channel are separated by a guiding strip.

6. The condensation module for a fog-eliminating and water-saving cooling tower according to claim 5, characterized in that, The guiding strip is divided into a straight section and a guiding section; the straight section is parallel to the baffle and extends to the dry area flow channel air inlet at the side of the condensation module; the guiding section is an arc structure and extends to the dry area flow channel air outlet at the top of the condensation module.

7. The condensation module for a fog-eliminating and water-saving cooling tower according to claim 1, characterized in that, The condensation module is made of PVC or PP material.

8. The condensation module for a fog-eliminating and water-saving cooling tower according to claim 1, wherein The condensation module is a rectangular structure as a whole; the wet area flow channels are symmetrically distributed with respect to the center of the condensation module.

9. A cooling tower, characterized in that, The cooling tower has the condensation module for a fog-eliminating and water-saving cooling tower according to any one of claims 1-8.

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