CN217083377U

CN217083377U - Novel dry-wet combined water-saving fog-dissipation cooling tower

Info

Publication number: CN217083377U
Application number: CN202220319978.4U
Authority: CN
Inventors: 江建军; 周剑秋; 王焘; 史玉涛; 朱丛静; 郭叶书; 曹红
Original assignee: Nantong Cellulose Fibers Co Ltd; Nanjing Tech University
Current assignee: Nantong Cellulose Fibers Co Ltd; Nanjing Tech University
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-07-29
Anticipated expiration: 2032-02-17

Abstract

The utility model provides a novel dry and wet joint water conservation fog dispersal cooling tower, the cooling tower includes the tower body, the below of tower body is equipped with the catch basin, the top of catch basin the inside of tower body is equipped with the filler, the top of filler be equipped with the spray thrower in the tower body, the top of spray thrower is equipped with the water collector, the top of water collector the inside of tower body is equipped with mixes the district in advance, mix the both sides in district in advance be equipped with heat exchange module, two on the tower body one side of heat exchange module all is equipped with heat radiation module, two heat radiation module's one end is all located in the catch basin, the top in mixing the district in advance is equipped with the fan. The original cooling tower is modified, and the temperature and the humidity of the cooling tower are reduced when damp and hot air is exhausted, so that the final aims of saving water and eliminating fog in winter and saving energy in summer are achieved.

Description

Novel dry-wet combined water-saving fog-dissipation cooling tower

Technical Field

The invention relates to the technical field of cooling towers, in particular to a novel dry-wet combined water-saving fog-dissipation cooling tower.

Background

The cooling tower is a device which uses water as a circulating coolant to absorb heat from the system and discharge the heat to the atmosphere so as to reduce the temperature of the water. The cooling tower is a comprehensive product integrating various disciplines of aerodynamics, thermodynamics, fluidics, static and dynamic structure mechanics and the like, and the device is generally barrel-shaped.

As industrialization, urbanization, and population continue to grow, the problem of water scarcity becomes more prominent. In the original cooling tower, the heat of the cooling water is transferred to the air in a mode of directly contacting with the air for heat exchange. This approach can significantly improve the operating performance of the cooling water system, but can result in a large amount of cooling water evaporating into the air. In contrast, in the air cooling system, the heat of the cooling water is mainly dissipated by natural convection heat exchange, so that water resource consumption caused by direct contact heat exchange between the cooling water and air is avoided. However, in the high temperature conditions in summer, the heat exchange performance of the air cooling system is significantly reduced as the ambient dry bulb temperature increases. Therefore, the spray cooling device is installed and used for the air cooling system, a small amount of water is evaporated in the heat exchange of the air cooling system, the heat transfer coefficient of the water is larger than that of the air, the heat efficiency of the air cooler can be obviously improved, and the spray cooling device is obviously helpful for improving the economy and the energy conservation of the cooling tower.

The original cooling tower is subjected to novel water-saving and water-saving reconstruction, and the temperature and the humidity of the cooling tower are reduced when damp and hot air is removed, so that the final aims of saving water and eliminating fog in winter and saving energy in summer are achieved.

Disclosure of Invention

Technical problem to be solved

The invention provides a novel dry-wet combined water-saving fog-dispersing cooling tower, aiming at the problem of potential safety hazard that water vapor forms 'fog' in the top area of the cooling tower due to the lower height of a mechanical ventilation cooling tower.

(II) technical scheme

The utility model provides a novel dry and wet joint water conservation fog dispersal cooling tower, the cooling tower includes the tower body, the below of tower body is equipped with the catch basin, the top of catch basin the inside of tower body is equipped with the filler, the top of filler be equipped with the spray thrower in the tower body, the top of spray thrower is equipped with the water collector, the top of water collector the inside of tower body is equipped with mixes the district in advance, mix the both sides in advance the district be equipped with heat exchange module, two on the tower body one side of heat exchange module all is equipped with heat radiation module, two heat radiation module's one end is all located in the catch basin, the top in mix the district in advance is equipped with the fan.

Preferably, the two heat exchange modules each include a housing, an inlet pipe box is arranged on one side of each of the two housings, an outlet pipe box is arranged on the other side of each of the two housings, a medium inlet pipe is arranged on each inlet pipe box, a medium outlet pipe is arranged on each outlet pipe box, a plurality of elliptical tube bundles are arranged in each housing, circulating water is conveyed to the medium outlet pipes from the medium inlet pipes by the elliptical tube bundles, and rectangular fins are arranged on both sides of each housing.

Preferably, the material of the oval tube bundle is carbon steel, stainless steel, copper or fluoroplastic.

Preferably, a plurality of the elliptical tube bundles are arranged in the shell in an in-line or staggered manner.

Preferably, the heat dissipation module comprises a sprayer, one end of the sprayer is arranged on the water pump, a filter is arranged on the other side of the water pump, and one end of the filter is connected to the water collecting tank through a water pipe.

Preferably, a plurality of electric turnover door plates are further arranged between the premixing area and the heat exchange module and in the tower body, and the electric turnover door plates are arranged in a straight line to separate the premixing area and the heat exchange module.

(III) the beneficial effects are as follows:

compared with the prior art, the invention has the following beneficial effects:

(1) in the premixing area, the wet hot air of the water receiver is mixed with the air heated by the heat released by the circulating water, the relative humidity is reduced, the exhaust air duct is mixed with the outside air, and the relative humidity is kept below 100 percent, so that the fog dissipation is realized.

(2) An electric flap gate is added at the air inlet of the tower body, and the water temperature control is realized by adjusting the air inlet amount at the lower part. According to the water vapor condition, the air inlet shutter is adjusted to achieve the final fog dispersal effect.

(3) For the heat transfer effect of reinforcing actual heat transfer module, will use the elliptical tube, under equal space, use the elliptical tube to have the heat transfer effectual, characteristics such as flow resistance is little, comparatively are applicable to the novel white water-saving transformation that disappears of cooling tower.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic diagram of a two-dimensional structure of a heat exchange module according to the present invention;

FIG. 3 is a schematic view of the internal structure of the heat exchange module of the present invention;

fig. 4 is a schematic view of the external structure of the heat exchange module of the present invention.

In the figure: 1. a filler; 2. a spraying device; 3. a water collector; 4. a pre-mixing zone; 5. a heat exchange module; 51. an in-tube medium inlet tube; 52. an inlet header; 53. a tube sheet; 54. a housing; 55 an outlet header; 56. a medium outlet pipe in the pipe; 57. a rectangular fin; 58. an elliptical tube bundle; 59. a bolt; 6. a fan; 7. an electric flap door; 8. sprayer, 9, water pump; 10. a filter; 11. a water collecting tank.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

As shown in fig. 1 to 2, the novel dry-wet combined water-saving fog-dispersing cooling tower of the embodiment comprises a tower body, wherein a filler 1, a spraying device 2, a water receiver 3, a premixing area 4 and a heat exchange module 5 are sequentially arranged in the tower body from bottom to top.

A premixing area 4 is formed above the water receiver 3 in the tower body, and heat exchange modules 5 are positioned at two sides of the cooling tower; the top of the tower body is also provided with an air duct communicated with the premixing area 4, and the air duct is provided with a fan 6 as an air guide device.

The fan 6 guides dry and cold air at the tower bottom and the windward side of the air cooler into the tower.

The water pump 9 draws water from the water collecting tank 11, and the water is filtered by the filter 10 and is conveyed to the spraying device 8 by a pipeline for spraying.

The external dry air flows through the elliptical tube bundle 58 under the guidance of the fan 6 and fully exchanges heat with medium water in the tube, meanwhile, the atomizer 8 carries out spray cooling treatment on the rectangular fins 57 at the air inlet to further enhance heat exchange, the spray water temperature in a wet area is reduced, the water mist is mixed with the wet air in the cooling tower along with the external air inlet, and the medium water in the tube enters the spraying device 2 after being cooled for the first time by the external dry air.

The spraying device 2 points to the filler 1, high-temperature water and dry and cold air entering the tower bottom at the filler 1 exchange heat, the external dry air cools the high-temperature water for the second time and then enters the premixing area 4, and the high-temperature water is cooled twice and then enters the water collecting tank 11.

The electric turnplate 7 separates the premixing area 4 from the heat exchange module 5, and the air flow adjusting mechanism can control the air flow in a simple and rapid mode to achieve the purposes of saving water and fog in winter and saving energy in summer.

The working principle of the invention is that air inlets are arranged on two sides of the cooling tower, a heat exchange module 5 is additionally arranged, a spraying device 8 is arranged at the air inlets, outside dry air is combined into high-temperature unsaturated wet air to 7 positions at the efficient fin elliptical tube cooling module 5 through water mist sprayed by an elliptical tube bundle 58 and the spraying device 8, the part of air is mixed with saturated wet air in the cooling tower at 4 positions to form unsaturated wet air to the outlet, and then the unsaturated wet air is discharged out of the tower through a fan 6 and is mixed with air outside the tower to return to the outside, thereby realizing the aim of fog dissipation.

The invention has the characteristics of simple structure, convenient operation, thorough fog dissipation and the like, and has obvious energy-saving and environment-friendly effects.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention, which is defined in the claims.

Claims

1. The utility model provides a novel dry and wet joint water conservation fog dispersal cooling tower, a serial communication port, the cooling tower includes the tower body, the below of tower body is equipped with catch basin (11), the top of catch basin (11) the inside of tower body is equipped with filler (1), the top of filler (1) be equipped with spray thrower (2) in the tower body, the top of spray thrower (2) is equipped with receives hydrophone (3), receive the top of hydrophone (3) the inside of tower body is equipped with mixes district (4) in advance, mix the both sides in district (4) in advance be equipped with heat exchange module (5), two on the tower body one side of heat exchange module (5) all is equipped with heat dissipation module, two heat dissipation module's one end is all located in catch basin (11), the top in the district (4) of mixing in advance is equipped with fan (6).

2. The novel dry-wet combined water-saving and fog-eliminating cooling tower as claimed in claim 1, wherein each of the two heat exchange modules (5) comprises an in-pipe medium inlet pipe (51), an inlet pipe box (52), a pipe plate (53), a shell (54), an outlet pipe box (55), an in-pipe medium outlet pipe (56), rectangular fins (57), an elliptical pipe bundle (58) and bolts (59), each of the two shells (54) is provided with an inlet pipe box (52) on one side, each of the two shells (54) is provided with an outlet pipe box (55) on the other side, the inlet pipe box (52) is provided with an in-pipe medium inlet pipe (51), the outlet pipe box (55) is provided with a medium outlet pipe (56), the shell (54) is provided with a plurality of elliptical pipe bundles (58), the elliptical pipe bundles (58) convey circulating water from the in-pipe medium inlet pipe (51) to the in-pipe medium outlet pipe (56), rectangular fins (57) are arranged on two sides of the shell (54).

3. The novel dry-wet combined water-saving fog-dispersal cooling tower as claimed in claim 2, wherein the elliptical tube bundle (58) is made of carbon steel, stainless steel, copper or fluoroplastic.

4. A new type of combined dry and wet water-saving fog-dispersal cooling tower as claimed in claim 2, wherein a plurality of said elliptical tube bundles (58) are arranged in a row or in a cross-row within the shell (54).

5. A novel dry-wet combined water-saving fog-dissipating cooling tower as claimed in claim 1, wherein the heat dissipation module comprises an atomizer (8), the atomizer (8) is located outside the elliptical tube bundle, one end of the atomizer (8) is arranged on a water pump (9), the other side of the water pump (9) is provided with a filter (10), and one end of the filter (10) is connected to the water collecting tank (11) through a water pipe.

6. A novel dry-wet combined water-saving fog-dispersing cooling tower as claimed in claim 1, wherein a plurality of electric turnover plates (7) are further arranged between the premixing area (4) and the heat exchange module (5) and in the tower body, the plurality of electric turnover plates (7) are arranged along a straight line to separate the premixing area (4) and the heat exchange module (5).