Large anti-freezing counter-flow cooling tower

Abstract

The utility model discloses a large anti-freezing reverse flow type cooling tower which comprises a bottom water collecting tank, a cylindrical cooling shell is arranged on the upper surface of the bottom water collecting tank, an air duct of a trumpet-shaped structure is arranged at the upper end of the cylindrical cooling shell, a supporting column is arranged in the middle of the interior of the cylindrical cooling shell, and a fan is arranged at the upper end of the supporting column. The upper side of the cylindrical cooling shell is connected with a motor for driving a fan to rotate through a motor base, an annular water dispersing piece is arranged at the upper end of the interior of the cylindrical cooling shell, an inlet of the annular water dispersing piece is connected with an L-shaped water inlet pipe, an anti-icing device is arranged in the cylindrical cooling shell, and a filling device is arranged in the cylindrical cooling shell; sprayed water directly enters the water collecting tank and is mixed with original cold water in the water collecting tank, so that the temperature in the water tank is adjusted, and the water temperature in the water tank is ensured not to be too low on the premise of meeting temperature indexes required by process production in cooperation with starting of a cooling tower fan, so that the anti-freezing purpose is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of counter-flow cooling towers, in particular to a large antifreeze counter-flow cooling tower. Background Art

[0002] Cooling tower is a device that uses water as a circulating coolant, absorbs heat from the system and discharges it into the atmosphere to reduce the water temperature. The low enthalpy air in the atmosphere enters the cooling tower from the air inlet network around the cooling tower through the pumping of the fan; the humid and hot (high enthalpy) water is sprinkled into the tower through the water spray system, forming a water film or water droplets in the filler. When the air contacts these water film and water droplets, on the one hand, due to the direct heat transfer between air and water; on the other hand, the high-temperature water molecules with high saturated steam partial pressure on the surface of the water droplets flow to the air with low pressure, and evaporate under the action of pressure. Evaporation absorbs heat and takes away the heat in the water, thereby achieving the purpose of cooling. In cold areas in winter, when the outdoor temperature is below 0℃, due to the uneven distribution of water load in the tower filler, the small water flow downstream of the tower wall filler, supporting beams and columns, tower air inlet, etc. will freeze. In severe cases, large icicles will form, endangering the normal operation of the cooling tower and affecting the service life of the equipment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a large antifreeze countercurrent cooling tower. The cooling water return temperature sprayed from the bypass is relatively high. The cooling water directly enters the water collecting pool and mixes with the original cold water in the water collecting pool, thereby adjusting the temperature in the water pool. In conjunction with the start-up of the cooling tower fan, the water temperature in the water pool is guaranteed not to be too low while meeting the temperature indicators required for process production, thereby achieving the antifreeze purpose and effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large antifreeze countercurrent cooling tower, comprising a bottom water collecting tank, a cylindrical cooling shell is arranged on the upper surface of the bottom water collecting tank, a horn-shaped wind tube is arranged on the upper end of the cylindrical cooling shell, a pillar is arranged in the middle of the cylindrical cooling shell, a fan is arranged on the upper end of the pillar, a motor for driving the fan to rotate is connected to the upper side of the cylindrical cooling shell through a motor seat, an annular water dispersion piece is arranged on the upper end of the inner part of the cylindrical cooling shell, an L-shaped water inlet pipe is connected to the inlet of the annular water dispersion piece, an anti-icing device is arranged on the inside of the cylindrical cooling shell, a packing device is arranged on the inside of the cylindrical cooling shell, the packing device is located between the anti-icing device and the annular water dispersion piece, and an air inlet window is arranged on the lower end of the outer side of the cylindrical cooling shell.

[0005] Furthermore, a water collecting tray is arranged at the inner upper end of the cylindrical cooling shell, and the water collecting tray is located above the annular water spreading member. The water collecting tray includes a supporting tray, and through holes are evenly arranged on the supporting tray, and the through holes are a curved structure.

[0006] Furthermore, the annular water dispersion member includes an annular water dispersion pipe, the lower surface of which is evenly provided with water outlets, and the lower end of each water outlet is provided with a water spray head. Water to be cooled enters the interior of the annular water dispersion pipe through an L-shaped water inlet pipe, and the water can be sprayed through the annular water dispersion pipe and the water spray head. The speed of water scattering can be slowed down by the filling device, thereby achieving a better cooling effect.

[0007] Furthermore, the anti-icing device includes an annular tube arranged inside a cylindrical cooling shell, water curtain nozzles are evenly arranged on the lower surface of the annular tube, and the inlet of the annular tube is connected to the inlet of an L-shaped water inlet pipe through a conduit, and a control valve is provided on the conduit connecting the annular tube and the L-shaped water inlet pipe.

[0008] Furthermore, the filler device comprises a support grid arranged inside the cylindrical cooling shell, and the interior of the support grid is filled with fillers.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the water to be cooled enters the interior of the annular water diffusion pipe through the L-shaped water inlet pipe, the water can be sprayed through the annular water diffusion pipe and the water nozzle, and the speed of water scattering can be slowed down by the filling device, so as to achieve a better cooling effect. In winter, by controlling the valve to be opened, the hot water in the L-shaped water inlet pipe enters the interior of the annular pipe, and then the hot water is sprayed through the water curtain nozzle to form a water curtain, and the sprayed hot water directly enters the water collection pool and mixes with the original cold water in the water collection pool, thereby adjusting the temperature in the water pool, and cooperating with the cooling tower fan to start the large antifreeze countercurrent cooling tower, the structure is simple, the operation is easy, the cooling water return temperature sprayed from the bypass is relatively high, and the sprayed water directly enters the water collection pool and mixes with the original cold water in the water collection pool, thereby adjusting the temperature in the water pool, and cooperating with the cooling tower fan to start the cooling tower, on the premise of meeting the temperature indicators required for process production, the water temperature in the water pool is guaranteed not to be too low, thereby achieving the antifreeze purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the front structure of the utility model.

[0012] In the figure: 1 bottom water collecting tank, 2 air inlet window, 3 filler device, 31 support grid, 32 filler, 4 water collecting tray, 5 cylindrical cooling shell, 6 fan, 7 air duct, 8 annular water dispersion member, 81 annular water dispersion pipe, 82 water spray head, 9 anti-icing device, 91 annular pipe, 92 control valve, 93 water curtain spray head, 10 L-shaped water inlet pipe, 11 motor. DETAILED DESCRIPTION

[0013] 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.

[0014] See also Figure 1-2 The utility model provides a technical solution: a large antifreeze countercurrent cooling tower, including a bottom water collecting pool 1, a cylindrical cooling shell 5 is arranged on the upper surface of the bottom water collecting pool 1, a trumpet-shaped wind tube 7 is arranged on the upper end of the cylindrical cooling shell 5, a pillar is arranged in the middle of the cylindrical cooling shell 5, a fan 6 is arranged on the upper end of the pillar, a motor 11 for driving the fan 6 to rotate is connected to the upper side of the cylindrical cooling shell 5 through a motor seat, an annular water dispersion member 8 is arranged on the upper end of the cylindrical cooling shell 5, an L-shaped water inlet pipe 10 is connected to the inlet of the annular water dispersion member 8, and the cylindrical cooling shell 5 is provided with a cylindrical cooling shell 5. The shell 5 is provided with an anti-icing device 9 inside, a packing device 3 is provided inside the cylindrical cooling shell 5, and the packing device 3 is located between the anti-icing device 9 and the annular water dispersion member 8. An air inlet window 2 is provided at the lower end of the outer side of the cylindrical cooling shell 5, and a water collecting tray 4 is provided at the upper end of the inner part of the cylindrical cooling shell 5. The water collecting tray 4 is located above the annular water dispersion member 8. The water collecting tray 4 includes a support plate, and through holes are evenly arranged on the support plate. The through holes are a curved structure, and the curved through holes are used to prevent water drops from running out with the air flow, and the gathered water drops fall down. The annular water dispersion member 8 includes an annular water dispersion pipe 81, and the annular water dispersion pipe The lower surface of the cooling tube 81 is evenly provided with water outlets, and the lower end of each water outlet is provided with a water spray head 82. The water to be cooled enters the inside of the annular water dispersion pipe 81 through the L-shaped water inlet pipe 10. The water can be sprayed through the annular water dispersion pipe 81 and the water spray head 82. The speed of water scattering can be slowed down by the filling device 3, so as to achieve a better cooling effect. The anti-icing device 9 includes an annular tube 91 arranged inside the cylindrical cooling shell 5, and the lower surface of the annular tube 91 is evenly provided with water curtain spray heads 93, and the inlet of the annular tube 91 is connected to the inlet of the L-shaped water inlet pipe 10 through a conduit, and the annular tube A control valve 92 is provided on the conduit connected between 91 and the L-shaped water inlet pipe 10. The filling device 3 includes a supporting grid 31 arranged inside the cylindrical cooling shell 5. The supporting grid 31 is filled with fillers 32. The large antifreeze countercurrent cooling tower has a simple structure and is easy to operate. The return water temperature of the cooling water sprayed from the bypass is relatively high. It is sprayed directly into the water collection pool and mixed with the original cold water in the water collection pool, thereby adjusting the temperature in the water pool. In conjunction with the cooling tower fan being turned on, the water temperature in the water pool is ensured not to be too low while meeting the temperature indicators required for process production, thereby achieving the antifreeze purpose.

[0015] During use: the water to be cooled enters the interior of the annular water diffusion pipe 81 through the L-shaped water inlet pipe 10, and the water can be sprayed through the annular water diffusion pipe 81 and the water spray head 82. The speed of water scattering can be slowed down by the filling device 3, so as to achieve a better cooling effect. In winter, by opening the control valve 92, the hot water in the L-shaped water inlet pipe 10 enters the interior of the annular pipe 91, and then the hot water is sprayed through the water curtain nozzle 93 to form a water curtain. The sprayed hot water directly enters the water collection pool and mixes with the original cold water in the water collection pool, thereby adjusting the temperature in the water pool and cooperating with the cooling tower fan to start.

[0016] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A large antifreeze counter-flow cooling tower, comprising a bottom water collecting tank (1), characterized in that: A cylindrical cooling shell (5) is provided on the upper surface of the bottom water collecting pool (1), a trumpet-shaped wind tube (7) is provided at the upper end of the cylindrical cooling shell (5), a pillar is provided in the middle of the cylindrical cooling shell (5), a fan (6) is provided at the upper end of the pillar, a motor (11) for driving the fan (6) to rotate is connected to the upper side of the cylindrical cooling shell (5) via a motor seat, an annular water dispersion member (8) is provided at the upper end of the cylindrical cooling shell (5), an L-shaped water inlet pipe (10) is connected to the inlet of the annular water dispersion member (8), an anti-icing device (9) is provided inside the cylindrical cooling shell (5), a packing device (3) is provided inside the cylindrical cooling shell (5), the packing device (3) is located between the anti-icing device (9) and the annular water dispersion member (8), and an air inlet window (2) is provided at the lower end of the outer side of the cylindrical cooling shell (5).

2. A large antifreeze counterflow cooling tower according to claim 1, characterized in that: A water collecting pan (4) is provided at the inner upper end of the cylindrical cooling shell (5), the water collecting pan (4) being located above the annular water dispersion member (8), the water collecting pan (4) comprising a supporting pan, through holes being evenly arranged on the supporting pan, the through holes being a curved structure.

3. A large antifreeze counterflow cooling tower according to claim 1, characterized in that: The annular water dispersion member (8) comprises an annular water dispersion pipe (81), the lower surface of the annular water dispersion pipe (81) is evenly provided with water outlets, and the lower end of each water outlet is provided with a water spray head (82).

4. A large antifreeze counterflow cooling tower according to claim 1, characterized in that: The anti-icing device (9) comprises an annular tube (91) arranged inside a cylindrical cooling shell (5), water curtain nozzles (93) are evenly arranged on the lower surface of the annular tube (91), and the inlet of the annular tube (91) is connected to the inlet of an L-shaped water inlet pipe (10) through a conduit, and a control valve (92) is provided on the conduit connecting the annular tube (91) and the L-shaped water inlet pipe (10).

5. A large antifreeze counterflow cooling tower according to claim 1, characterized in that: The filler device (3) comprises a support grid (31) arranged inside a cylindrical cooling shell (5), and the interior of the support grid (31) is filled with fillers (32).

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