CN211552523U

CN211552523U - Closed type counter-flow cooling tower

Info

Publication number: CN211552523U
Application number: CN201922047208.XU
Authority: CN
Inventors: 时涛; 彭安国
Original assignee: Jiangsu Fangben Industrial Cooling Technology Co ltd
Current assignee: Jiangsu Fangben Industrial Cooling Technology Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-09-22
Anticipated expiration: 2029-11-23

Abstract

The utility model belongs to the technical field of the evaporative cooler and specifically relates to a closed counterflow cooling tower is related to, including the cooling tower casing, be equipped with catch basin and heat exchange coil in the cooling tower casing, the catch basin is located the bottom in the cooling tower casing, and heat exchange coil is located the catch basin top, the relative both sides of the cooling tower casing between catch basin and the heat exchange coil are equipped with the air inlet grid, are equipped with a plurality of layers of horizontal plates from last equidistance extremely down between the two air inlet grids, are equipped with a plurality of tye holes on the horizontal plate. The utility model absorbs a large amount of heat in the air through water evaporation on the horizontal plate, and the cooled air is upwards absorbed and exchanges heat with the heat exchange coil, so that the heat exchange efficiency is improved, namely the cooling effect of the cooling tower is improved; water flowing down from the two ends of the horizontal plate flows downwards along the air inlet grille, a water curtain is formed at the air inlet grille, and air entering the cooling tower from the air inlet grille is fully contacted with the water at the air inlet grille to be cooled.

Description

Closed type counter-flow cooling tower

Technical Field

The utility model belongs to the technical field of the evaporative cooler and specifically relates to a closed counter-current cooling tower is related to.

Background

The closed cooling tower makes the cooling water carrying waste heat flow in the coil pipe inside the tower body and the circulated air and spray water exchange heat and mass with the water inside the coil pipe to reach the aim of cooling. Depending on the direction of flow of water and air, cooling towers can be divided into: counterflow cooling towers, crossflow cooling towers, and mixed flow cooling towers. The countercurrent cooling tower has countercurrent water vapor flow inside the tower, water flowing from the top to the bottom and air flowing from the bottom to the top. The counter-flow cooling tower is more efficient in cooling than the other two types of cooling towers.

The utility model with the publication number of CN203785483U discloses a double-spray countercurrent closed cooling tower containing precooling filler, which comprises a cooling tower body, wherein the top of the cooling tower body is provided with an air duct with a fan, and a water collector, a nozzle, the precooling filler, a heat exchange coil and a water collecting tank are sequentially arranged in the cooling tower body from top to bottom; two air inlets are correspondingly arranged on two side surfaces of the cooling tower body, and the two air inlets are positioned between the heat exchange coil and the water collecting tank. The outside air is sucked into the cooling tower from the air inlet, the air flow is exhausted from the air duct after rising, and the cooling effect of the cooling tower is reduced because the temperature of the outside air is higher in summer and the heat exchange efficiency of the outside air and the heat exchange coil is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a closed is cooling tower against current can improve the cooling effect of cooling tower when summer.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a closed is cooling tower against current, includes the cooling tower casing, is equipped with catch basin and heat exchange coil in the cooling tower casing, and the catch basin is located the bottom in the cooling tower casing, and heat exchange coil is located the catch basin top, the relative both sides of the cooling tower casing between catch basin and the heat exchange coil are equipped with air-inlet grille, are equipped with a plurality of layers of horizontal plates from last to equidistance down between two air-inlet grille, are equipped with a plurality of discharge orifices on the horizontal plate.

By adopting the technical scheme, the spray water falls onto the horizontal plates, and the horizontal plates are provided with the plurality of water flowing holes, so that a thin layer of water is paved on the upper surfaces of all the horizontal plates, the outside air enters the cooling tower from the air inlet grille and then is blown onto all the horizontal plates, the water on all the horizontal plates absorbs a large amount of heat in the air after being evaporated, the cooled air is upwards absorbed and exchanges heat with the heat exchange coil, and the heat exchange efficiency is improved, namely the cooling effect of the cooling tower is improved.

Preferably, the horizontal plate is hollow inside.

Through adopting above-mentioned technical scheme, because also can the water storage in the hollow horizontal plate, so the outside air can fully contact with the water on the horizontal plate.

Preferably, the two sides of the cooling tower shell, which are not provided with the air inlet grille, are provided with air holes, the two ends of the horizontal plate are seamlessly connected into the air holes, the two ends of the horizontal plate, which are connected with the air holes, are provided with openings, and the openings are communicated with the inside of the horizontal plate.

Through adopting above-mentioned technical scheme, outside air still blows to the horizontal plate through the opening at horizontal plate both ends except that getting into the cooling tower from air-inlet grille on blowing to the horizontal plate, and the cooling tower is bloied to all horizontal plates from four directions for the evaporation rate of water on the horizontal plate.

Preferably, the two air inlet grids are symmetrically inclined, and the distance between the tops of the two air inlet grids is greater than that between the bottoms of the two air inlet grids.

Through adopting above-mentioned technical scheme, the air mass flow of air-inlet grille department has been improved.

Preferably, the width direction of the horizontal plates points to the air inlet grille, all the horizontal plates decrease in width from top to bottom, and the distance between the two ends of each layer of the horizontal plates in the width direction and the distance between the two ends of the corresponding air inlet grille are the same.

By adopting the technical scheme, water flowing down from the two ends of the horizontal plate flows downwards along the air inlet grille, a water curtain is formed at the air inlet grille, and air entering the cooling tower from the air inlet grille is fully contacted with the water at the air inlet grille to be cooled.

Preferably, all the water flow holes on each layer of horizontal plate are parallel to each other, and the water flow holes on adjacent horizontal plates are arranged in a staggered manner.

By adopting the technical scheme, water can be prevented from directly flowing to the water flow holes of the lower horizontal plate from the water flow holes of the upper horizontal plate, so that the upper surface of the horizontal plate is stained with water as much as possible.

Preferably, the air-inlet grille comprises a plurality of long plates which are parallel to each other, and the distance between the lowest ends of the long plates on the two air-inlet grills is smaller than that between the highest ends.

Through adopting above-mentioned technical scheme, make the water of whereabouts in the cooling tower be difficult to spill from air-inlet grille department.

Preferably, a water baffle is arranged at each air hole on the outer wall of the cooling tower shell.

Through adopting above-mentioned technical scheme, make the water in the horizontal plate be difficult to leak from the gas pocket.

To sum up, the utility model discloses a beneficial technological effect does:

1. a large amount of heat in the air is absorbed through water evaporation on the horizontal plate, and the cooled air is upwards absorbed and exchanges heat with the heat exchange coil, so that the heat exchange efficiency is improved, namely the cooling effect of the cooling tower is improved;

2. water flowing down from the two ends of the horizontal plate flows downwards along the air inlet grille, a water curtain is formed at the air inlet grille, and air entering the cooling tower from the air inlet grille is fully contacted with the water at the air inlet grille to be cooled.

Drawings

FIG. 1 is a schematic structural diagram of a closed counter-flow cooling tower in an embodiment;

FIG. 2 is a schematic structural view of an air intake grille and a horizontal plate in the embodiment;

FIG. 3 is a schematic structural view illustrating an embodiment in which an air inlet grille and a horizontal plate are mounted on a cooling tower casing;

FIG. 4 is a schematic view of the installation of the splash plate on the cooling tower shell.

In the figure, 1, a cooling tower shell; 2. a water collecting tank; 3. a heat exchange coil; 4. an air inlet grille; 5. a horizontal plate; 6. a water flowing hole; 7. air holes; 8. an opening; 9. a long plate; 10. a water baffle; 11. an air duct; 12. an axial flow fan; 13. a water collector; 14. a spray header; 15. water spraying and filling; 16. a water distribution plate; 17. a water pump; 18. and a spray header.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): fig. 1 is the utility model discloses a closed counterflow cooling tower, including cooling tower casing 1, 1 tops of cooling tower casing are equipped with dryer 11, are equipped with axial fan 12 in the dryer 11. The cooling tower shell 1 is internally provided with a water collector 13, a spray header 14, a water spraying filler 15, a water distribution plate 16, a heat exchange coil 3 (cooled medium flows in the pipe) and a water collecting tank 2 from top to bottom in sequence, wherein the spray header 14 is provided with a plurality of spray headers 18, the spray header 14 extends out of the cooling tower shell 1 and is communicated with the water collecting tank 2, and the spray header 14 is also provided with a water pump 17. Two air inlet grilles 4 with the same height are arranged on the cooling tower shell 1 between the water collecting tank 2 and the heat exchange coil 3, and the two air inlet grilles 4 are respectively positioned on two opposite sides of the cooling tower shell 1. Outside air enters the cooling tower shell 1 from the air inlet grille 4, and then the axial flow fan 12 draws the air in the tower upwards.

As shown in FIG. 1, the two air-inlet grilles 4 are symmetrically inclined, and the distance between the tops of the two air-inlet grilles 4 is greater than the distance between the bottoms of the two air-inlet grilles. Each air-inlet grille 4 is composed of a plurality of long plates 9 which are parallel to each other and are equidistant, and the distance between the lowest ends of the two long plates 9 with the same height on the two air-inlet grills 4 is less than that between the highest ends.

As shown in FIG. 1, a plurality of layers of horizontal plates 5 are equidistantly arranged between two air inlet grilles 4 from top to bottom, and the widths of all the horizontal plates 5 are gradually reduced from top to bottom. The width direction of the horizontal plate 5 points to the air inlet grille 4, and the distance between the two ends of each layer of horizontal plate 5 in the width direction and the corresponding air inlet grille 4 is the same.

As shown in fig. 2, all the horizontal plates 5 are hollow, each layer of horizontal plate 5 is provided with a plurality of parallel water flow holes 6, the water flow holes 6 on the adjacent horizontal plates 5 are staggered, and the water flow holes 6 are communicated with the interiors of the horizontal plates 5. The staggered arrangement of the water flowing holes 6 on the adjacent horizontal plates 5 has the advantages that: water can be prevented from directly flowing from the water flow holes 6 of the upper horizontal plate 5 to the water flow holes 6 of the lower horizontal plate 5, so that the upper surface of the horizontal plate 5 is stained with water as much as possible.

Referring to fig. 2 and 3, the cooling tower housing 1 is provided with air holes 7 on both sides where the air inlet grille 4 is not installed, the air holes 7 are in a horizontal straight long shape, and both ends of the horizontal plate 5 are connected in the air holes 7 in a seamless manner. Both ends of the horizontal plate 5 connected with the air holes 7 are provided with openings 8, and the openings 8 are communicated with the inside of the horizontal plate 5.

As shown in fig. 4, the outer wall of the cooling tower housing 1 is fixed with an inclined water baffle 10 in each air hole 7, the bottom of the water baffle 10 is fixedly connected with the bottom of the air hole 7, the top of the water baffle 10 inclines towards the direction far away from the cooling tower housing 1, and the water baffle 10 acts as: the water in the horizontal plate 5 is not easy to leak from the air holes 7.

The implementation principle of the embodiment is as follows: as shown in fig. 1, the spray water in the cooling tower falls on the horizontal plates 5, and since the horizontal plates 5 are provided with a plurality of water flowing holes 6, a thin layer of water is spread on the upper surfaces of all the horizontal plates 5, and in addition, the hollow inner cavities of the horizontal plates 5 can also store water, when the outside air enters the cooling tower from the air inlet grille 4 and then blows on all the horizontal plates 5, the water on all the horizontal plates 5 absorbs a large amount of heat in the air after evaporating, and the air after cooling is upwards absorbed and exchanges heat with the heat exchange coil 3, so that the heat exchange efficiency is improved, namely the cooling effect of the cooling tower is improved.

As shown in FIG. 1, water flowing down from two ends of the horizontal plate 5 flows down along the air-inlet grille 4, a water curtain is formed at the air-inlet grille 4, and air entering the cooling tower from the air-inlet grille 4 is fully contacted with the water at the air-inlet grille 4 to reduce the temperature. Outside air enters the cooling tower from the air inlet grille 4 and is blown to the horizontal plate 5, and is blown to the horizontal plate 5 through the openings 8 at the two ends of the horizontal plate 5, and the cooling tower blows air to all the horizontal plates 5 from four directions, so that the evaporation speed of water on the horizontal plates 5 is accelerated.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a closed is cooling tower against current, includes cooling tower casing (1), is equipped with catch basin (2) and heat transfer coil (3) in cooling tower casing (1), and catch basin (2) are located the bottom in cooling tower casing (1), and heat transfer coil (3) are located catch basin (2) top, its characterized in that: the relative both sides of cooling tower casing (1) between catch basin (2) and heat exchange coil (3) are equipped with air-inlet grille (4), are equipped with a plurality of layers horizontal plate (5) from last to equidistant down between two air-inlet grille (4), are equipped with a plurality of discharge orifices (6) on horizontal plate (5).

2. The closed counterflow cooling tower of claim 1, wherein: the horizontal plate (5) is hollow.

3. The closed counterflow cooling tower of claim 2, wherein: both sides that cooling tower casing (1) did not set up air-inlet grille (4) are equipped with gas pocket (7), and the both ends seamless connection of horizontal plate (5) is in gas pocket (7), and the both ends that horizontal plate (5) are connected gas pocket (7) all are equipped with opening (8), and opening (8) communicate with each other with the inside of horizontal plate (5).

4. The closed counterflow cooling tower of claim 1, wherein: the two air inlet grids (4) are symmetrically inclined, and the distance between the tops of the two air inlet grids (4) is greater than that between the bottoms of the two air inlet grids.

5. The closed counterflow cooling tower of claim 4, wherein: the width direction of horizontal plate (5) points to air-inlet grille (4), and all horizontal plates (5) decrease progressively from last to lower width, and every layer of horizontal plate (5) width direction's both ends are the same with the distance that corresponds air-inlet grille (4).

6. The closed counterflow cooling tower of claim 1, wherein: all the water flowing holes (6) on each layer of horizontal plate (5) are parallel to each other, and the water flowing holes (6) on the adjacent horizontal plates (5) are arranged in a staggered way.

7. The closed counterflow cooling tower of claim 1, wherein: the air inlet grille (4) comprises a plurality of long plates (9) which are parallel to each other, and the distance between the lowest ends of the long plates (9) on the two air inlet grills (4) is smaller than that between the highest ends.

8. The closed counterflow cooling tower of claim 3, wherein: and a water baffle (10) is arranged at each air hole (7) on the outer wall of the cooling tower shell (1).