Anti-freezing closed cooling tower

Abstract

According to the anti-freezing closed cooling tower, the bottom of a cooling tower body is fixedly connected with a water storage tank, a heat exchange pipe is arranged above an inner cavity of the cooling tower body, the top end of the heat exchange pipe is connected with an inflow pipe, the bottom end of the heat exchange pipe is connected with a backflow pipe, and the other end of the inflow pipe and the other end of the backflow pipe are located at the position of the water storage tank. Through grooves are formed in the two sides of the cooling tower body, fan shells are arranged at the through grooves, fans are arranged in the fan shells, first heating plates are arranged in front of the fans, spraying pipes are arranged at the top of an inner cavity of the cooling tower body, and water spraying heads are arranged at the bottoms of the spraying pipes. Coolant in the heat exchange pipe is located in the water storage tank and recycled through the water pump, the temperature sensor measures the temperature of the surrounding environment in real time, and when the temperature is lower than 0 DEG C, the second heating plate is opened to heat the coolant in the water storage tank, so that the coolant is prevented from being frozen in the heat exchange pipe due to too low temperature.

Description

Technical Field

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

[0002] A closed cooling tower is a tower that places a tubular heat exchanger inside the tower. The cooling effect is ensured by heat exchange between circulating air, spray water and circulating water. Because it is a closed cycle, it can ensure that the water quality is not polluted, which well protects the efficient operation of the main equipment and increases its service life. With the implementation of the national energy conservation and emission reduction policy and the increasing scarcity of water resources, closed cooling towers have been widely used in industries such as steel metallurgy, power electronics, mechanical processing, and air conditioning systems in recent years.

[0003] However, when the closed cooling tower of the prior art is operated in a place where the external environment is below 0°C, the coolant in the heat exchange tube inside the cooling tower will be solidified, and the cooling tube will be frozen and cracked for a long time, which has certain limitations. Utility Model Content

[0004] The utility model aims to provide an antifreeze type closed cooling tower to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A freeze-proof closed cooling tower comprises a cooling tower body, a storage water tank is fixedly connected to the bottom of the cooling tower body, an inner cavity is provided inside the cooling tower body, a through hole is provided at the bottom of the inner cavity of the cooling tower body, the inner cavity of the cooling tower body is connected to the interior of the storage water tank through the through hole, a heat exchange tube is arranged above the inner cavity of the cooling tower body, the heat exchange tube is a winding S-shape and is located in the inner cavity of the cooling tower body, both ends of the heat exchange tube pass through the inner cavity wall of the cooling tower body respectively, the top end of the heat exchange tube is connected to the inlet pipe, the bottom end of the heat exchange tube is connected to the return pipe, the other ends of the inlet pipe and the return pipe are located at the storage water tank, through grooves are provided on both sides of the cooling tower body, a fan housing is arranged at the through groove, a fan is arranged inside the fan housing, a first heating plate is arranged in front of the fan, the first heating plate is located inside the fan housing, a spray pipe is arranged at the top of the inner cavity of the cooling tower body, and a water spray head is arranged at the bottom of the spray pipe.

[0007] Preferably, a filter screen is provided on the surface of the through hole.

[0008] Preferably, a water pump is provided at a certain position of the inlet pipe.

[0009] Preferably, fans are provided at both ends of the top of the cooling tower body.

[0010] Preferably, a second heating plate is provided at the bottom of the storage water tank.

[0011] Preferably, support legs are provided at the four top corners of the bottom of the cooling tower body.

[0012] Preferably, a temperature sensor is provided on the front side of the storage water tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses an antifreeze type closed cooling tower, in which the coolant in the heat exchange tube is located in a storage water tank and is circulated through a water pump, and a temperature sensor measures the temperature of the surrounding environment in real time, and when the temperature is lower than 0°C, the second heating plate is turned on to heat the coolant in the storage water tank to prevent the coolant from freezing in the heat exchange tube due to the temperature being too low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0017] In the figure: 1. Cooling tower body; 2. Fan; 3. Return pipe; 4. Support leg; 5. Water pump; 6. Inlet pipe; 7. Storage water tank; 8. Temperature sensor; 9. Spray pipe; 10. Spray head; 11. Through groove; 12. Fan housing; 13. Fan; 14. First heating plate; 15. Heat exchange tube; 16. Through hole; 17. Filter; 18. Second heating plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-2 , the utility model provides a technical solution:

[0022] A freeze-proof closed cooling tower comprises a cooling tower body 1, a storage water tank 7 is fixedly connected to the bottom of the cooling tower body 1, an inner cavity is provided inside the cooling tower body 1, a through hole 16 is provided at the bottom of the inner cavity of the cooling tower body 1, the inner cavity of the cooling tower body 1 and the interior of the storage water tank 7 are connected through the through hole 16, a heat exchange tube 15 is arranged above the inner cavity of the cooling tower body 1, the heat exchange tube 15 is a winding S-shaped and is located in the inner cavity of the cooling tower body 1, and the two ends of the heat exchange tube 15 pass through the inner cavity wall of the cooling tower body 1 respectively, and the heat exchange tube 15 passes through the inner cavity wall of the cooling tower body 1. The top end of the heat pipe 15 is connected to the inlet pipe 6, and the bottom end of the heat exchange pipe 15 is connected to the return pipe 3. The other ends of the inlet pipe 6 and the return pipe 3 are located at the storage water tank 7. Through grooves 11 are opened on both sides of the cooling tower body 1, and a fan housing 12 is arranged at the through groove 11. A fan 13 is arranged inside the fan housing 12. A first heating plate 14 is arranged in front of the fan 13. The first heating plate 14 is located inside the fan housing 12. A spray pipe 9 is arranged on the top of the inner cavity of the cooling tower body 1, and a water spray head 10 is arranged at the bottom of the spray pipe 9.

[0023] Furthermore, a filter screen 17 is provided on the surface of the through hole 16 , and the filter screen 17 filters the water sprayed from the water spray head 10 . The filtered water will enter the storage water tank 7 , and the impurities will be located in the inner cavity of the cooling tower body 1 .

[0024] Furthermore, a water pump 5 is provided at a certain position of the inlet pipe 6 .

[0025] Furthermore, fans 2 are provided at both ends of the top of the cooling tower body 1 .

[0026] Furthermore, a second heating plate 18 is provided at the bottom of the storage water tank 7 .

[0027] Furthermore, support legs 4 are provided at the four corners of the bottom of the cooling tower body 1 .

[0028] Furthermore, a temperature sensor 8 is provided on the front side of the storage water tank 7 .

[0029] Working principle: In the utility model, the coolant in the heat exchange tube 15 is located in the storage water tank 7 and is circulated through the water pump 5. The temperature sensor 8 measures the temperature of the surrounding environment in real time. When the temperature is lower than 0°C, the controller turns on the second heating plate 18 to heat the coolant in the storage water tank 7 through the second heating plate 18 to prevent the coolant from freezing in the heat exchange tube 15 due to the temperature being too low.

[0030] When the second heating plate 18 is turned on, the first heating plate 14 will also be turned on, and the first heating plate 14 heats the wind blown out of the fan housing 12, thereby further preventing the coolant in the heat exchange tube 15 from being frozen.

[0031] At this time, the hot air will also raise the temperature of the inner cavity of the cooling tower body 1 to a certain extent, preventing the coolant in the water spray head 10 and the spray pipe 9 from being frozen.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An antifreeze type closed cooling tower, comprising a cooling tower body (1), characterized in that: The bottom of the cooling tower body (1) is fixedly connected to a storage water tank (7); an inner cavity is provided inside the cooling tower body (1); a through hole (16) is provided at the bottom of the inner cavity of the cooling tower body (1); the inner cavity of the cooling tower body (1) is connected to the inside of the storage water tank (7) via the through hole (16); a heat exchange tube (15) is arranged above the inner cavity of the cooling tower body (1); the heat exchange tube (15) is a winding S-shaped tube and is located in the inner cavity of the cooling tower body (1); both ends of the heat exchange tube (15) respectively pass through the inner cavity wall of the cooling tower body (1); the top end of the heat exchange tube (15) is connected to the inlet pipe (6) The bottom end of the heat exchange tube (15) is connected to the return pipe (3), the other ends of the inlet pipe (6) and the return pipe (3) are located at the storage water tank (7), through grooves (11) are provided on both sides of the cooling tower body (1), a fan housing (12) is provided at the through groove (11), a fan (13) is provided inside the fan housing (12), a first heating plate (14) is provided in front of the fan (13), and the first heating plate (14) is located inside the fan housing (12), a spray pipe (9) is provided at the top of the inner cavity of the cooling tower body (1), and a water spray head (10) is provided at the bottom of the spray pipe (9).

2. The antifreeze closed cooling tower according to claim 1, characterized in that: A filter screen (17) is provided on the surface of the through hole (16).

3. The antifreeze closed cooling tower according to claim 1, characterized in that: A water pump (5) is provided at a certain position of the inlet pipe (6).

4. The antifreeze type closed cooling tower according to claim 1, characterized in that: Fans (2) are provided at both ends of the top of the cooling tower body (1).

5. The antifreeze closed cooling tower according to claim 1, characterized in that: A second heating plate (18) is provided at the bottom of the storage water tank (7).

6. The antifreeze type closed cooling tower according to claim 1, characterized in that: Support legs (4) are provided at the four corners of the bottom of the cooling tower body (1).

7. The antifreeze type closed cooling tower according to claim 1, characterized in that: A temperature sensor (8) is arranged on the front side of the storage water tank (7).

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