Dry and wet combined dual-purpose open countercurrent cooling tower

Abstract

The utility model discloses a dry and wet combined dual-purpose open type countercurrent cooling tower which comprises a tower body and further comprises two groups of spraying assemblies, a dual-purpose water spraying filler and a driving receiving assembly, and the driving receiving assembly, the water spraying filler and the spraying assemblies are sequentially arranged in the tower body from bottom to top. The driving receiving assembly and the water spraying filler are matched together to divide the lower space of the tower body into two groups of cavities, one group of cavities is used for conducting cold air, and the upper part and the lower part of the inner cavity of the tower body are respectively divided into different spaces through the adjustment control of the spraying assembly, the adoption of the double-channel water spraying filler and the design of multiple cavities at the lower part; according to the dry-wet combined dual-purpose open countercurrent cooling tower, dry and wet dual purposes of the open cooling tower can be achieved, the open cooling tower can be switched between two different operation states, the water saving function of a closed cooling tower and the large-temperature-difference cooling function of the open cooling tower are achieved at the same time, and meanwhile the dry-wet combined dual-purpose open countercurrent cooling tower further has the effect that under the low-temperature environment, supercooling and freezing are avoided in filler.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a dry-wet combined dual-purpose open countercurrent cooling tower. Background Art

[0002] Traditional open cooling tower packing does not distinguish between dry and wet channels. Hot water enters from the top of the packing layer and covers the entire surface. Dry, cold air enters from the bottom of the packing layer, where it comes into contact with the hot water on the packing surface, undergoing heat transfer and surface evaporation. Through heat transfer and surface evaporation, the dry, cold air becomes moist, hot air and is discharged from the top of the packing layer, simultaneously removing heat and achieving cooling, resulting in high water consumption. During operation in cold weather, due to the low ambient temperature, the cold water cooling the packing layer in the lower part of the packing layer easily freezes upon contact with the cold air, blocking portions of the packing channels. Furthermore, the ice hangs on the packing, increasing the weight of the tower, which can easily cause the tower to collapse due to overweight. Improvements are urgently needed. Utility Model Content

[0003] In view of the above problems, a dry-wet combined dual-purpose open countercurrent cooling tower is now provided to solve the problems existing in the prior art.

[0004] The specific technical solutions are as follows:

[0005] A dry-wet combined dual-purpose open countercurrent cooling tower includes a tower body, two groups of spray assemblies, a dual-purpose water filling and a drive receiving assembly. The drive receiving assembly, water filling and spray assembly are arranged in sequence from bottom to top in the tower body. The drive receiving assembly and the water filling cooperate to separate the lower space of the tower body into two groups of cavities, one group of cavities is used to conduct cold air, and the other group of cavities is used to conduct spray water. The upper space of the tower body is also divided into two groups of cavities, and the two groups of spray assemblies are respectively arranged in the two groups of cavities.

[0006] The above-mentioned dry-wet combined dual-purpose open countercurrent cooling tower also has the following characteristics, and further comprises a driving fan, which is arranged at the top opening of the tower body.

[0007] The benefits of this solution include: the dry, cold air used for heat exchange avoids direct contact with the cooling water, reducing surface evaporation caused by direct contact. Furthermore, the channel usage can be adjusted as needed to meet the countercurrent operation requirements of traditional open cooling towers.

[0008] The above-mentioned dry-wet combined dual-purpose open countercurrent cooling tower also has the following characteristics, and also includes a water absorption barrier, which is arranged at the top of the inner cavity of the tower body, and the gas output through the top opening of the tower body needs to pass through the water absorption barrier.

[0009] The beneficial effect of the above solution is to prevent hot air from carrying moisture out, thereby achieving the effect of water saving.

[0010] The above-mentioned dry-wet combined dual-purpose open countercurrent cooling tower also has the following characteristics: the drive receiving assembly includes multiple cold air drive parts and multiple spray water receiving parts, the cold air drive parts and the spray water receiving parts are staggered at the bottom of the tower body, the cold air drive parts are connected to the cavity at the bottom of the inner cavity of the tower body for conducting cold air, and the spray water receiving parts are connected to the cavity at the bottom of the inner cavity of the tower body for conducting spray water.

[0011] The beneficial effects of the above solution are as follows: the cold air driving unit is used to drive external cold air into the cooling tower to absorb the heat of hot water and cool it down; the spray water receiving unit is used to receive the cooled spray water and collect it.

[0012] The above-mentioned dry-wet combined dual-purpose open countercurrent cooling tower also has the following characteristics: the output ends of the plurality of spray water receiving parts are all connected to the circulating water pool, and the spray water received by them continues to circulate after entering the circulating pool.

[0013] The above solution offers the following benefits: By preventing direct contact between spray water and cold air, water evaporation is reduced while achieving cooling, thus conserving water. Furthermore, icing caused by direct contact with strong cold air is avoided. When switched to wet operation, the cooling tower achieves the cooling effect of open countercurrent circulation, meeting the cooling requirements of various operating conditions.

[0014] In summary, the beneficial effects of this solution are:

[0015] In the dry-wet combined dual-purpose open cooling tower provided by the utility model, the upper and lower parts of the tower body cavity are divided into different spaces by adjusting and controlling the spray component and adopting a dual-channel water spraying filler, as well as a multi-cavity design at the lower part, so that the open cooling tower can be used for both dry and wet purposes, and can be switched between two different operating states without any activation. At the same time, it has the water-saving function of a closed cooling tower and the large temperature difference cooling function of an open cooling tower. At the same time, the dry-wet combined dual-purpose open countercurrent cooling tower provided by the utility model also has the effect of avoiding overcooling and icing in the filler in a low-temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front cross-section structure of the dry-wet combined dual-purpose open countercurrent cooling tower of the present utility model.

[0017] In the figure: 1. Tower body; 2. Cold air driving part; 3. Spray water receiving part; 4. Water spraying filler; 5. Spray assembly; 6. Water absorption barrier; 7. Driving fan. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0020] The present invention will be further described below with reference to specific embodiments, but this is not intended to limit the present invention.

[0021] Figure 1 This is a schematic diagram of the cross-section structure of the dry-wet combined dual-purpose open countercurrent cooling tower of the present invention, as shown in FIG. Figure 1 As shown, the dry-wet combined dual-purpose open countercurrent cooling tower provided in this embodiment includes a tower body 1, and also includes two groups of spray components 5, a dual-purpose water filling and a drive receiving component and the drive receiving component, the water filling 4 and the spray component 5 are arranged in sequence from bottom to top in the tower body 1. The drive receiving component and the water filling 4 cooperate to separate the lower space of the tower body 1 into two groups of cavities, one group of cavities is used to conduct cold air, and the other group of cavities is used to conduct spray water. The upper space of the tower body 1 is also divided into two groups of cavities, and the two groups of spray components 5 are respectively arranged in the two groups of cavities.

[0022] It should be noted that a plurality of upwardly extending partitions are provided on the top of the water spray filler 4 , and the partitions are used to separate the upwardly moving hot air and the downwardly moving hot water, and the two spray assemblies 5 are staggered and distributed between the partitions.

[0023] In the above embodiment, a driving fan 7 is further included, and the driving fan 7 is arranged at the top opening of the tower body 1.

[0024] In the above embodiment, a water-absorbing barrier layer 6 is further included. The water-absorbing barrier layer 6 is arranged at the top of the inner cavity of the tower body 1 . All gases output through the top opening of the tower body 1 need to pass through the water-absorbing barrier layer 6 .

[0025] In the above embodiment, the drive receiving assembly includes multiple cold air drive parts 2 and multiple spray water receiving parts 3. The cold air drive parts 2 and the spray water receiving parts 3 are alternately arranged at the bottom of the tower body 1. The cold air drive parts 2 are connected to the cavity at the bottom of the inner cavity of the tower body 1 for conducting cold air, and the spray water receiving parts 3 are connected to the cavity at the bottom of the inner cavity of the tower body 1 for conducting spray water.

[0026] It should be noted that the cold air driving unit 2 can also receive and collect the spray water, and the spray water receiving unit 3 can also output cold air, and the two can be adjusted according to demand.

[0027] In the above embodiment, the output ends of the plurality of spray water receiving parts 3 are all connected to the circulating water pool, and the spray water received by them continues to circulate after entering the circulating pool.

[0028] It should be noted that the spray assembly can switch the cooling tower between dry and wet states by adjusting the control valve.

[0029] It should be noted that the water-spraying filler adopts a dual-channel combined filler. Through the control of the spray assembly and the separation design of multiple cavities in the lower part of the tower body, as well as the switching control of the ventilation adjustment damper, both dry and wet operating conditions can be achieved. In dry operation, the circulating water and cold air are separated and run in reverse, and cooling is achieved through non-contact indirect heat exchange, which reduces the evaporation of circulating water and saves water resources. In wet operation, the circulating water and cold air are mixed and contacted in reverse, which enhances the cooling function and meets the cooling needs. This structure organically combines the open cooling tower and the closed cooling tower into one, realizing the high temperature difference cooling function of the open cooling tower and the water-saving function of the closed cooling tower.

[0030] Working principle: In summer, the cooling tower can adopt dual-channel wet operation, and two groups of spray components 5 operate at the same time. Hot water enters the two channels of the water filling 4 from the top of the water filling 4 and moves downward. The cold air drive unit 2 operates to make the cold air enter the two channels of the water filling 4 from the bottom of the water filling 4 and move upward. The cold air directly contacts the hot water to cool it down; in winter, dual-channel dry operation can be adopted, one group of spray components 5 stops operating, and the other group of spray components 5 outputs hot water, and the hot water enters one channel of the water filling 4. The cold air drive unit 2 operates to make the cold air enter the other channel of the water filling 4. The cold air does not directly contact the heat, effectively controlling the supercooling and freezing phenomenon, and at the same time reducing a large amount of evaporation loss of cooling circulating water.

[0031] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of the present invention specification should be included in the protection scope of the present invention.

Claims

1. A dry-wet combined dual-purpose open countercurrent cooling tower, comprising a tower body (1), characterized in that: It also includes two groups of spray assemblies (5), a dual-purpose water sprinkling filler and a drive receiving assembly, and the drive receiving assembly, the water sprinkling filler (4) and the spray assembly (5) are sequentially arranged in the tower body (1) from bottom to top. The drive receiving assembly and the water sprinkling filler (4) cooperate to separate the lower space of the tower body (1) into two groups of cavities, one group of cavities is used to conduct cold air, and the other group of cavities is used to conduct spray water. The upper space of the tower body (1) is also divided into two groups of cavities, and the two groups of spray assemblies (5) are respectively arranged in the two groups of cavities.

2. A dry-wet combined dual-purpose open countercurrent cooling tower according to claim 1, characterized in that: It also includes a driving fan (7), which is arranged at the top opening of the tower body (1).

3. A dry-wet combined dual-purpose open countercurrent cooling tower according to claim 2, characterized in that: It also includes a water-absorbing barrier layer (6), which is arranged at the top of the inner cavity of the tower body (1), and all gases output through the top opening of the tower body (1) need to pass through the water-absorbing barrier layer (6).

4. The dry-wet combined dual-purpose open countercurrent cooling tower according to claim 1, characterized in that: The drive receiving assembly comprises a plurality of cold air drive parts (2) and a plurality of spray water receiving parts (3), wherein the cold air drive parts (2) and the spray water receiving parts (3) are alternately arranged at the bottom of the tower body (1), the cold air drive parts (2) are connected to a cavity at the bottom of the inner cavity of the tower body (1) for conducting cold air, and the spray water receiving parts (3) are connected to a cavity at the bottom of the inner cavity of the tower body (1) for conducting spray water.

5. A dry-wet combined dual-purpose open countercurrent cooling tower according to claim 4, characterized in that: The output ends of the plurality of spray water receiving parts (3) are all connected to the circulating water pool, and the spray water received by them continues to circulate after entering the circulating pool.

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