Spraying type cooling mechanism of cooling tower

Abstract

The utility model belongs to the field of spray-type cooling towers, and discloses a spray-type cooling mechanism of a cooling tower, which comprises a spray assembly for spray water distribution and cooling, and an exhaust assembly for exhausting cooled gas and blocking water vapor is arranged above the spray assembly. The heat exchange assembly is arranged below the exhaust assembly and used for internal and external dual heat exchange cooling and downward air guiding, and the spraying assembly is installed in the heat exchange assembly. According to the spraying type cooling mechanism of the cooling tower, due to the arrangement of internal and external dual heat exchange cooling, high-temperature gas sequentially passes through the internal and external heat exchange channels, the heat exchange path is increased, and the cooling effect is improved; through the arrangement of downward air guiding, it is guaranteed that high-temperature air and spraying water form opposite flushing upwards during secondary cooling, and the heat exchange effect is improved; and through the arrangement of internal and external differential speeds, the flow speed of the high-temperature gas during secondary cooling is reduced, the retention time during secondary cooling is prolonged, and the cooling effect is further improved.

Description

Technical Field

[0001] The utility model belongs to the field of spray cooling towers, and particularly relates to a spray cooling mechanism for a cooling tower. Background Technique

[0002] A spray cooling tower, also known as a wet cooling tower, evenly sprays hot water in the form of fine water droplets on the packing layer at the top of the cooling tower through a spray system. After these water droplets come into contact with air, part of the water evaporates into water vapor and absorbs heat at the same time, causing the water temperature to drop. Cooling air is introduced at the bottom of the tower, and a fan or a water pump is used to pass the air through the packing layer to conduct heat transfer with the evaporated water vapor, further reducing the water temperature. The cooling air passing through the packing layer becomes humid and carries away part of the water vapor, and finally is discharged through the air outlet at the top of the cooling tower; in short, the spray cooling mechanism of the cooling tower is an efficient and energy-saving cooling device, which realizes the rapid cooling and recycling of hot water through the synergistic effect of the spray system and the packing layer.

[0003] Comparing with the Chinese patent with the authorization announcement number of CN219624521U, it discloses a spray cooling tower, including a main body, on which a packing layer, a water outlet pipe, a water inlet pipe, a bracket, an air outlet, a water storage tank, an air inlet grille and a support column are respectively arranged. A water storage cavity and a supercharger are arranged on the support column. The water inlet pipe is sequentially connected with the supercharger and the water storage cavity. A plurality of water distribution components are evenly arranged on the outer side of the water storage cavity. The water distribution components include an upper water distribution pipe and a lower water distribution pipe, and spray heads are equidistantly arranged on the bottom end surfaces of the upper water distribution pipe and the lower water distribution pipe. A fan is arranged on the air outlet grille of the air outlet through a motor.

[0004] When the above-mentioned patent cools down, the high-temperature gas passes through the inside of the cooling tower from bottom to top, and the heat exchange path is short, and the cooling effect is not good. Therefore, a new device needs to be designed. Summary of the Invention

[0005] The purpose of the utility model is to provide a spray cooling mechanism for a cooling tower to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A spray cooling mechanism for a cooling tower includes a spray component for spray water distribution and cooling. An exhaust component for discharging the cooled gas and blocking water vapor is arranged above the spray component. A heat exchange component for internal and external double heat exchange cooling and downward air guiding is also included and is arranged below the exhaust component. The spray component is installed inside the heat exchange component;

[0008] The heat exchange component includes a water collecting tank, on which a tower body is arranged. At the bottom of the tower body, an air inlet pipe is provided, and one end of the air inlet pipe extending into the interior of the tower body is connected to a cooling pipe. At the bottom of the cooling pipe, a support seat is arranged. Two first cooling fillers are evenly arranged in the cooling pipe. An air guiding sleeve is arranged outside the cooling pipe. At the bottom of the air guiding sleeve, a fixing frame is provided. Two second cooling fillers are evenly arranged above the fixing frame.

[0009] Furthermore: The spraying component includes a water pump, on which a water delivery pipe is installed. At the top of the water delivery pipe, two spray pipes are provided. At one end of the spray pipe away from the water delivery pipe, three water distribution pipes are provided. The water distribution pipe is in a ring shape, and nozzles are arranged on the water distribution pipe.

[0010] Furthermore: The exhaust component includes a tower top, at the bottom of which a water baffle is arranged. At the top of the tower top, an exhaust pipe is installed.

[0011] Furthermore: The support seat is of a hollow structure and is welded to the cooling pipe.

[0012] Furthermore: The air guiding sleeve is sleeved outside the cooling pipe from above the cooling pipe and is arranged with an opening downward.

[0013] Furthermore: The cross-sectional area of the first cooling filler is smaller than the cross-sectional area of the second cooling filler.

[0014] Compared with the prior art, the beneficial effects are as follows:

[0015] Through the setting of double internal and external heat exchange and cooling, the high-temperature gas passes through two internal and external heat exchange channels in sequence, increasing the heat exchange path and improving the cooling effect;

[0016] Through the setting of downward air guiding, it is ensured that the high-temperature gas forms a counterflush with the spraying water upward during secondary cooling, improving the heat exchange effect;

[0017] Through the setting of internal and external differential speed, the flow rate of the high-temperature gas is reduced during secondary cooling, increasing the residence time during secondary cooling, and further improving the cooling effect. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a spray cooling mechanism of a cooling tower according to the present utility model;

[0019] Figure 2 It is a front cross-sectional view of the heat exchange component of a spray cooling mechanism of a cooling tower according to the present utility model;

[0020] Figure 3 It is an axonometric view of the spraying component of a spray cooling mechanism of a cooling tower according to the present utility model;

[0021] Figure 4 It is a front cross-sectional view of the exhaust assembly of the spray cooling mechanism of a cooling tower described in the present utility model.

[0022] In the attached drawing reference numerals: 101, water collecting tank; 102, tower body; 103, intake pipe; 104, cooling pipe; 105, support base; 106, first cooling filler; 107, air guiding sleeve; 108, fixing frame; 109, second cooling filler; 201, water pump; 202, water delivery pipe; 203, spray pipe; 204, water distribution pipe; 205, nozzle; 301, tower top; 302, water baffle; 303, exhaust pipe. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , a spray cooling mechanism of a cooling tower, including a spray assembly for spray water distribution and cooling, an exhaust assembly is arranged above the spray assembly for discharging the cooled gas and blocking water vapor, and further includes a heat exchange assembly arranged below the exhaust assembly for internal and external double heat exchange cooling and downward air guiding, and the spray assembly is installed inside the heat exchange assembly.

[0025] In this embodiment: The heat exchange component includes a water collecting tank 101. A tower body 102 is arranged on the water collecting tank 101. An air inlet pipe 103 is arranged at the bottom of the tower body 102. One end of the air inlet pipe 103 extending into the interior of the tower body 102 is connected to a cooling pipe 104. A support base 105 is arranged at the bottom of the cooling pipe 104. Two first cooling fillers 106 are evenly arranged in the cooling pipe 104. A gas guiding sleeve 107 is arranged outside the cooling pipe 104. A fixing frame 108 is arranged at the bottom of the gas guiding sleeve 107. Two second cooling fillers 109 are evenly arranged above the fixing frame 108. The support base 105 is of a hollow structure and is welded to the cooling pipe 104. The gas guiding sleeve 107 is sleeved outside the cooling pipe 104 from above and is arranged with an opening downward. The cross-sectional area of the first cooling filler 106 is smaller than that of the second cooling filler 109. During use, the water level of the cooling water in the water collecting tank 101 is kept higher than the support base 105 and submerges the bottom of the cooling pipe 104. Subsequently, the spraying component sprays water on the first cooling filler 106 and the second cooling filler 109. At the same time, the high-temperature gas that needs to be cooled is introduced into the cooling pipe 104 through the air inlet pipe 103. After being preliminarily cooled and temperature-reduced by passing through the two layers of the first cooling filler 106, it enters the bottom of the tower body 102 along the gap between the gas guiding sleeve 107 supported by the fixing frame 108 and the cooling pipe 104 and passes upward through the two layers of the second cooling filler 109 for secondary cooling and temperature reduction;

[0026] In this embodiment: The spraying component includes a water pump 201. A water delivery pipe 202 is installed on the water pump 201. Two spray pipes 203 are arranged at the top of the water delivery pipe 202. Three water distribution pipes 204 are arranged at one end of the spray pipe 203 away from the water delivery pipe 202. Sprayers 205 are arranged on the water distribution pipes 204. The water distribution pipes 204 are in a ring shape, so that the water pump 201 sends water into the water distribution pipes 204 through the spray pipes 203 through the water delivery pipe 202 and finally sprays it on the first cooling filler 106 and the second cooling filler 109 through the sprayers 205;

[0027] In this embodiment: The exhaust component includes a tower top 301. A water baffle 302 is arranged at the bottom of the tower top 301. An exhaust pipe 303 is installed at the top of the tower top 301. The water vapor generated by cooling is blocked by the water baffle 302, and the cooled high-temperature gas is discharged from the exhaust pipe 303 through the tower top 301.

[0028] Working principle: When in use, keep the liquid level of the cooling water in the water collecting tank 101 higher than the support base 105 and submerge the bottom of the cooling pipe 104. Then, make the water pump 201 send water into the water distribution pipe 204 through the spray pipe 203 via the water delivery pipe 202, and finally spray it on the first cooling filler 106 and the second cooling filler 109 through the spray head 205. At the same time, make the high-temperature gas to be cooled enter the cooling pipe 104 through the air inlet pipe 103. After being preliminarily cooled and temperature-reduced by the two layers of the first cooling filler 106, it enters the bottom of the tower body 102 along the gap between the air guide sleeve 107 supported by the fixing frame 108 and the cooling pipe 104, and then passes upward through the two layers of the second cooling filler 109 for secondary cooling and temperature reduction and enters the tower top 301. During this process, the water vapor generated by cooling is blocked by the water baffle 302, and the cooled high-temperature gas is discharged through the exhaust pipe 303. This device cools both internally and externally, increasing the cooling path of the high-temperature gas and improving the cooling effect. At the same time, the cross-sectional area of the first cooling filler 106 is smaller than that of the second cooling filler 109, that is, the cross-sectional area of the internal cooling channel is smaller than that of the external cooling channel, making the flow rate of the high-temperature gas slow down when entering the external cooling channel and increasing the residence time in the second cooling filler 109, further improving the cooling effect.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray cooling mechanism for a cooling tower, comprising a spray assembly for spray water distribution and cooling, and an exhaust assembly is arranged above the spray assembly for discharging the cooled gas and blocking water vapor, characterized in that: It further includes a heat exchange component disposed below the exhaust component for double internal and external heat exchange cooling and downward air guiding, and the spraying component is installed inside the heat exchange component; The heat exchange component includes a water collecting tank (101), a tower body (102) is arranged above the water collecting tank (101), an air inlet pipe (103) is arranged at the bottom of the tower body (102), one end of the air inlet pipe (103) extending into the tower body (102) is connected with a cooling pipe (104), a support seat (105) is arranged at the bottom of the cooling pipe (104), two first cooling fillers (106) are uniformly arranged in the cooling pipe (104), a gas guiding sleeve (107) is arranged outside the cooling pipe (104), a fixing frame (108) is arranged at the bottom of the gas guiding sleeve (107), and two second cooling fillers (109) are uniformly arranged above the fixing frame (108).

2. The spray cooling mechanism of a cooling tower according to claim 1, characterized in that: The spraying component includes a water pump (201), a water delivery pipe (202) is installed on the water pump (201), two spray pipes (203) are arranged at the top of the water delivery pipe (202), three water distribution pipes (204) are arranged at one end of the spray pipe (203) away from the water delivery pipe (202), the water distribution pipe (204) is in a ring shape, and spray heads (205) are arranged on the water distribution pipe (204).

3. The spray cooling mechanism of a cooling tower according to claim 1, characterized in that: The exhaust component includes a tower top (301), a water baffle (302) is arranged at the bottom of the tower top (301), and an exhaust pipe (303) is installed at the top of the tower top (301).

4. The spray cooling mechanism of a cooling tower according to claim 1, characterized in that: The support seat (105) is of a hollow structure and is welded to the cooling pipe (104).

5. The spray cooling mechanism of a cooling tower according to claim 1, characterized in that: The gas guiding sleeve (107) is sleeved outside the cooling pipe (104) from above the cooling pipe (104) and is arranged with an opening downward.

6. The spray cooling mechanism of a cooling tower according to claim 1, characterized in that: The cross-sectional area of the first cooling filler (106) is smaller than the cross-sectional area of the second cooling filler (109).

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