Closed cooling tower

Abstract

The utility model relates to the technical field of cooling towers, and discloses a closed cooling tower which comprises a rack and a cooling tower body, the cooling tower body is installed inside the rack, a plurality of heat exchange structures are arranged inside the cooling tower body, each heat exchange structure comprises an installation frame, a heat dissipation frame is arranged inside the installation frame, and the heat dissipation frames are connected with the cooling tower body. A cooling pipeline is spirally arranged on the heat dissipation frame, and a liquid inlet pipeline which extends into the cooling tower to introduce liquid to be cooled into the cooling pipeline is arranged on the side face of the cooling tower; a hollow top tray is arranged above the mounting frame, a plurality of sprayers spraying water to the cooling pipeline are arranged below the top tray, and a cooling circulating pipeline used for collecting cooling liquid and supplying the cooling liquid to the interior of the top tray is arranged on the side face of the cooling tower. According to the utility model, the heat dissipation area among cooling water, the cooling pipeline and the heat dissipation frame can be increased, the heat exchange efficiency can be improved, and circulating water can quickly take away heat on the heat dissipation pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a closed cooling tower. Background Art

[0002] The closed cooling tower is a deformation and development of the traditional cooling tower. It is actually an evaporative cooling tower, a combination of a cooler and a wet cooling tower. It is a horizontal evaporative cooling tower. The process fluid flows through the tube and the air flows through the outside of the tube. The two do not contact each other. The water in the water reservoir at the bottom of the tower is pumped out by a circulating pump and sent to the outside of the tube to be sprayed evenly. It does not contact the process fluid hot water or refrigerant and the air outside the tube, becoming a closed cooling tower, which enhances the effect of heat and mass transfer by spraying water;

[0003] The cooling process of the existing closed cooling tower usually uses a spray device to spray water on the heat dissipation coil, so as to cool the circulating water in the heat dissipation coil; however, the design of the spray device in the existing closed cooling tower is not very reasonable, and the heat dissipation coil cannot be effectively sprayed comprehensively, resulting in the heat dissipation coil being unable to achieve all-round heat exchange, resulting in low heat exchange efficiency, and the circulating water cannot quickly take away the heat from the heat dissipation pipe. Utility Model Content

[0004] The utility model aims to provide a closed cooling tower to solve the problem that the cooling process of the existing closed cooling tower proposed in the above background technology usually adopts a spraying device to spray water on the heat dissipation coil, so as to cool the circulating water in the heat dissipation coil; however, the design of the spraying device in the existing closed cooling tower is not very reasonable, and the heat dissipation coil cannot be effectively sprayed comprehensively, resulting in the heat dissipation coil being unable to achieve all-round heat exchange, resulting in low heat exchange efficiency, and the circulating water cannot quickly take away the heat from the heat dissipation pipe.

[0005] To achieve the above object, the utility model provides the following technical solutions: a closed cooling tower, comprising a frame and a cooling tower, wherein the cooling tower is installed inside the frame, and a plurality of heat exchange structures are arranged inside the cooling tower, wherein the heat exchange structure comprises a mounting frame, and a heat dissipation frame is arranged inside the mounting frame, and a cooling pipe is arranged on the heat dissipation frame in a spiral shape, and a liquid inlet pipe is arranged on the side of the cooling tower, which extends into the interior of the cooling tower and passes the liquid to be cooled into the interior of the cooling pipe;

[0006] A top plate with a hollow interior is arranged above the mounting frame, a plurality of sprinkler heads facing the cooling pipes are arranged below the top plate, and a cooling circulation pipe for collecting cooling liquid and supplying it to the top plate is arranged on the side of the cooling tower.

[0007] Furthermore, the heat sink comprises a mounting plate, which is mounted on the mounting frame, and a plurality of heat sinks are arranged in a ring shape above the mounting plate, and a plurality of mounting through holes for cooling pipes to pass through are arranged in the middle of the heat sinks.

[0008] Furthermore, the top view projection shape of the heat sink is a rhombus, with both ends contracted, and the mounting through hole is located in the middle of the heat sink.

[0009] Furthermore, a plurality of mounting grooves are provided in a ring shape below the top plate, and the top of the heat sink is installed inside the mounting grooves.

[0010] Furthermore, the plurality of nozzles correspond to a plurality of heat sinks respectively, and each nozzle faces each heat sink respectively.

[0011] Furthermore, the lower part of the cooling pipeline passes through the mounting plate and is connected to the liquid inlet pipeline.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model arranges a heat sink inside the cooling tower to support the cooling pipes distributed in a spiral shape. When the liquid to be cooled passes through the cooling pipes, the heat will be transferred to the cooling pipes. The cooling pipes are in contact and connection with the heat sink, so the heat transfer can be carried out, and the heat dissipation on the surface of the cooling pipes can be accelerated. When cooling water is sprayed onto the cooling pipes and the heat sink, the heat dissipation area between the cooling water, the cooling pipes and the heat sink can be increased, and the heat exchange efficiency can be improved. The circulating water can quickly take away the heat on the heat sinks. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of a closed cooling tower of the utility model;

[0015] Figure 2 It is a structural schematic diagram of a closed cooling tower heat sink installed inside a mounting frame according to the utility model;

[0016] Figure 3 It is a schematic diagram of the overall structure of a mounting frame of a closed cooling tower of the utility model;

[0017] Figure 4 The utility model is a schematic structural diagram of a cooling pipe of a closed cooling tower installed on a heat dissipation frame.

[0018] In the figure: 1, rack; 2, cooling tower; 3, mounting frame; 31, top plate; 3101, mounting slot; 311, nozzle; 4, heat dissipation frame; 41, mounting plate; 42, heat dissipation plate; 5, cooling circulation pipeline; 6, cooling pipeline; 7, liquid inlet pipeline. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-Figure 4 As shown, the utility model provides a technical solution: a closed cooling tower, comprising a frame 1 and a cooling tower 2, wherein the cooling tower 2 is installed inside the frame 1, and a plurality of heat exchange structures are arranged inside the cooling tower 2, wherein the heat exchange structure comprises a mounting frame 3, wherein a heat dissipation frame 4 is arranged inside the mounting frame 3, and a cooling pipe 6 is arranged on the heat dissipation frame 4 in a spiral shape, and a liquid inlet pipe 7 is arranged on the side of the cooling tower 2 to extend into the cooling tower 2 and pass the liquid to be cooled into the cooling pipe 6;

[0021] A hollow top plate 31 is disposed above the mounting frame 3 , a plurality of sprinkler heads 311 facing the cooling pipe 6 are disposed below the top plate 31 , and a cooling circulation pipe 5 for collecting cooling liquid and supplying it to the top plate 31 is disposed on the side of the cooling tower 2 .

[0022] In the utility model, in actual use, by arranging the heat dissipation frame 4 inside the cooling tower 2 to support the cooling pipe 6 distributed in a spiral shape, when the liquid to be cooled passes through the cooling pipe 6, the heat will be transferred to the cooling pipe 6, and the cooling pipe 6 is in contact with the heat dissipation frame 4, so that the heat transfer can be carried out, and the heat dissipation on the surface of the cooling pipe 6 can be accelerated. When the cooling water is sprayed onto the cooling pipe 6 and the heat dissipation frame 4, the heat dissipation area between the cooling water and the cooling pipe 6 and the heat dissipation frame 4 can be increased, the heat exchange efficiency can be improved, and the circulating water can quickly take away the heat on the heat dissipation pipe.

[0023] Furthermore, the heat sink 4 includes a mounting plate 41, which is mounted on the mounting frame 3. A plurality of heat sinks 42 are arranged in a ring shape above the mounting plate 41, and a plurality of mounting through holes for the cooling pipe 6 to pass through are arranged in the middle of the heat sink 42.

[0024] Furthermore, the top view projection shape of the heat sink 42 is a rhombus, with both ends contracted, and the mounting through hole is located in the middle of the heat sink 42; the heat sink 42 and the cooling pipe 6 are both made of metal with good heat dissipation.

[0025] Furthermore, a plurality of mounting grooves 3101 are provided in an annular shape below the top plate 31 , and the top of the heat sink 42 is installed inside the mounting groove 3101 .

[0026] Furthermore, the plurality of nozzles 311 correspond to a plurality of heat sinks 42 respectively, and each nozzle 311 faces each heat sink 42 respectively.

[0027] Furthermore, the lower part of the cooling pipe 6 passes through the mounting plate 41 and is connected to the liquid inlet pipe 7 .

[0028] Working principle: By setting the heat sink 42 to a structure that is thick in the middle and thin at both ends, the contact area between the cooling pipe 6 and the heat sink 42 can be made larger, while also avoiding the problem of reduced heat dissipation efficiency due to excessive thickness of the heat sink 42.

[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A closed cooling tower, comprising a frame (1) and a cooling tower (2), wherein the cooling tower (2) is installed inside the frame (1), characterized in that: A plurality of heat exchange structures are arranged inside the cooling tower (2), the heat exchange structures comprising a mounting frame (3), a heat dissipation frame (4) is arranged inside the mounting frame (3), a cooling pipe (6) is arranged on the heat dissipation frame (4) in a spiral shape, and a liquid inlet pipe (7) is arranged on the side of the cooling tower (2) and extends into the interior of the cooling tower (2) to pass the liquid to be cooled into the interior of the cooling pipe (6); A top plate (31) with a hollow interior is arranged above the mounting frame (3), a plurality of sprinkler heads (311) directed toward the cooling pipe (6) are arranged below the top plate (31), and a cooling circulation pipe (5) for collecting cooling liquid and supplying it to the interior of the top plate (31) is arranged on the side of the cooling tower (2).

2. A closed cooling tower according to claim 1, characterized in that: The heat sink (4) comprises a mounting plate (41), the mounting plate (41) being mounted on the mounting frame (3), a plurality of heat sinks (42) being arranged in a ring shape above the mounting plate (41), a plurality of mounting through holes for the cooling pipe (6) to pass through being arranged in the middle of the heat sink (42).

3. A closed cooling tower according to claim 2, characterized in that: The top view projection shape of the heat dissipation plate (42) is a rhombus, with both ends contracted, and the mounting through hole is located in the middle of the heat dissipation plate (42).

4. A closed cooling tower according to claim 2, characterized in that: A plurality of mounting grooves (3101) are provided in an annular shape at the bottom of the top plate (31), and the top of the heat dissipation plate (42) is mounted inside the mounting grooves (3101).

5. A closed cooling tower according to claim 1, characterized in that: The plurality of nozzles (311) respectively correspond to a plurality of heat sinks (42), and each nozzle (311) is directed toward each heat sink (42).

6. A closed cooling tower according to claim 1, characterized in that: The lower part of the cooling pipeline (6) passes through the mounting plate (41) and is connected to the liquid inlet pipeline (7).

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