CN108344310A - Plate changes formula fog dispersal module and its cooling tower - Google Patents

Abstract

The present invention provides a kind of band fog dispersal module fog dispersal cooling towers, including tower body, tower body is internally provided with fog dispersal module, the module that disperses fog includes the first packing sheet and the second packing sheet, and the first packing sheet and the second packing sheet are corrugated plating, and the section of the first packing sheet is in " Z " font, the centre of first packing sheet has connection sheet, the both sides of connection sheet are concave surface, and the second packing sheet is arranged in two concave surfaces of the first packing sheet, and the ripple of the second packing sheet and the ripple of the first packing sheet are obliquely installed.The fog dispersal module of the present invention uses the first packing sheet compression molding of " Z " font, and the second filler is set on the first packing sheet so that the ripple of the first packing sheet and the ripple of the second packing sheet intersect, and form channel staggeredly, can better dispersing water flow, improve heat exchange efficiency.

Description

Plate exchange type mist elimination module and its cooling tower

technical field

The invention relates to the technical field of cooling towers, in particular to a plate-exchanging mist elimination module and a cooling tower thereof.

Background technique

The rain and fog produced at the outlet of the fan duct of the mechanical ventilation cooling tower is a normal physical change after the contact of cold and hot air. It is produced by the rapid condensation of water vapor when exposed to cold outside air. It mainly occurs in winter and the rainy season, and the generation of rain and fog has no effect on the performance of the cooling tower. With the improvement of environmental protection requirements, the relevant requirements for cooling towers have also increased accordingly. Although the rain and fog at the air outlet of the cooling tower has no effect on the performance of the cooling tower, it has a great impact on the operation and working environment of the plant, road traffic safety, equipment corrosion in the plant area, and a large loss of circulating water. In the current anti-fog cooling tower, the air flows in a straight line inside the filler, and the contact time with hot water is short, so heat exchange cannot be fully performed, resulting in low heat exchange efficiency.

Contents of the invention

Based on this, it is necessary to provide a plate exchange type defogging module and a cooling tower thereof.

The technical solution adopted by the present invention to solve the technical problem is: a plate-replacement type anti-fog module, including a first packing sheet and a second packing sheet, both of which are corrugated plates , the cross-section of the first packing sheet is "Z" shape, there is a connecting piece in the middle of the first packing sheet, the two sides of the connecting piece are concave, and the second packing sheet is arranged on the first The two concave surfaces of the packing sheet, and the corrugations of the second packing sheet and the corrugations of the first packing sheet are arranged obliquely.

Further, the first packing sheets are stacked and compression-molded, and the first packing sheets are combined to form a first channel and a second channel that are isolated from each other.

Further, the second filler sheet is rhombus-shaped.

A cooling tower, comprising a tower body and the mist elimination module described in any one of the above, the mist elimination module is arranged inside the tower body, and the mist elimination module divides the inner space of the tower body into chamber and gas mixing chamber.

Further, it also includes a water distribution system, the water distribution system is provided with a first splashing device and a second splashing device, the first splashing device is arranged above the first channel, and the second splashing device The device is arranged above the second channel.

Further, a water pool is provided under the tower body, and the water pool communicates with the air inlet chamber.

Further, a water eliminator is provided inside the tower body, and the water eliminator is arranged above the mist elimination module.

Further, the gas mixing chamber is provided with a first flow guiding device, a second flow guiding device and a third flow guiding device.

Further, an air duct is arranged above the tower body, and a fan and a motor for driving the fan are arranged at the air duct.

The beneficial effects of the present invention are: the defogging module of the present invention adopts the compression molding of the "Z"-shaped first packing sheet, and the second packing is arranged on the first packing sheet, so that the corrugation of the first packing sheet and the second packing The corrugations of the sheets cross each other to form interlaced channels, which can better disperse the water flow and improve the heat exchange efficiency. The present invention can set the water flow and the air flow channel according to the engineering requirements, thereby changing the ratio of dry and wet air in the cooling tower, and controlling the moisture content of the humid air at the air outlet of the cooling tower.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

Fig. 1 is the structural representation of cooling tower of the present invention;

Fig. 2 is a schematic structural diagram of the defogging module in Fig. 1 .

The names and numbers of the components in the figure are:

10. Tower body, 11. Fog elimination module, 111. First packing sheet, 112. Second packing sheet, 113. First channel, 114. Second channel, 12. Water eliminator, 13. Air inlet chamber, 14 . Gas mixing chamber, 15. Air cylinder, 16. Fan, 17. Motor, 20. Water distribution system, 21. First splash device, 22. Second splash device, 30. Pool.

Detailed ways

The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

As shown in Figure 1, the present invention provides a cooling tower with a plate-replacing anti-fog module. Turning on the anti-fog mode in winter can greatly reduce the rain and fog at the outlet of the cooling tower; in summer, the cooling tower basically has no rain and fog, and requires To maximize the thermal efficiency, it is not necessary to turn on the anti-fog mode.

The fog-eliminating cooling tower of the present invention includes a tower body 10 , a water distribution system 20 , a water pool 30 arranged below the tower body 10 , and a fog-eliminating module 11 and a water eliminator 12 arranged inside the tower body 10 .

The tower body 10 is generally in the shape of a cylindrical structure with two ends open, and the pool 30 is arranged at the lower end of the tower body 10 and communicates with the inner space of the tower body 10 . The water pool 30 and the mist removal module 11 isolate the inner space of the tower body 11 into an air inlet chamber 13 and a gas mixing chamber 14 , wherein the air inlet chamber 13 is located at the bottom of the tower body 10 and communicates with the water pool 30 . The tower body 10 is provided with an air inlet (not shown) communicating with the air inlet chamber 13 and the outside, and shutters (not shown) for adjusting the air intake are installed at the air inlet.

The defogging module 11 includes a first packing sheet and a second packing sheet 112, and both the first packing sheet 111 and the second packing are corrugated plates. The first packing sheet 111 is bent into a "Z" shape, and there is a connecting piece (not shown) in the middle of the first packing sheet 111. A concave surface is formed on both sides of the connecting piece, and the two concave surfaces are opposite. A packing sheet 111 is stacked to form two partitions isolated from each other, a plurality of first passages are formed in one partition, and a plurality of second passages 114 are formed in the other partition. The corrugations on the first packing sheet 111 extend in the horizontal direction, that is, the first channel 113 and the second channel 114 are both vertical, and the two ends of the first channel 113 and the second channel 114 are mixed with the air inlet chamber 13 and the gas respectively. Room 14. In this embodiment, the first packing sheet 111 is formed by compression molding.

In this embodiment, two sets of first packing sheets 111 are provided, the two sets of first packing sheets 111 are connected, and the first channel 113 of one set of first packing sheets 111 is connected to the first channel 113 of the other set of first packing sheets 111. The passages 113 are connected, and the two sides of the first passage 113 are second passages 114, or the second passage 114 of one group of first packing sheets 111 is connected with the second passage 114 of another group of first packing sheets 111, and the second Both sides of the channel 114 are the first channel 113 . In other unshown implementation manners, multiple sets of first packing sheets 111 may be provided, such as three sets, four sets, and so on.

The second packing sheet 112 is arranged on the concave surface of the first corrugated sheet, and each first packing sheet 111 is correspondingly provided with a second packing sheet 112; There is an included angle between the directions, and the corrugations of the second packing sheet 112 and the first packing sheet 111 intersect each other, so that a plurality of inclined channels are formed between the second packing sheet 112 and the first packing sheet 111, which can better Distribute water flow and improve heat exchange efficiency. In this embodiment, the second packing sheet 112 is in the shape of a rhombus, and in other embodiments not shown, the second packing sheet 112 may also be in the shape of a square, a triangle, or the like. In this embodiment, the second filler sheet 112 is bonded on the first filler sheet 111 .

The water eliminator 12 is located above the defogging module 11, and the upper end of the tower body 10 is provided with an air duct 15, which communicates with the gas mixing chamber 14, and the air duct 16 is provided with a fan 17 and a motor 18 for driving the fan 17 to rotate .

The water distribution system 20 includes a water distribution pipe (not shown in the figure), a first splash device 21 and a second splash device 22 communicated with the water distribution pipe, and the water distribution pipe communicates with the hot water in the upper tower. The water distribution pipe penetrates into the tower body 10 from the outside of the tower body 10, and is located between the water eliminator 12 and the mist elimination module 11. The first splash device 21 is arranged above the first channel 113, and the second splash device 22 is arranged on the Above the second channel 114 .

Referring to Fig. 1, in winter, the first splash device 21 is opened, the second splash device 22 is closed, and the hot water sprayed by the first splash device 21 enters the first channel 113, and in the first channel 113, The hot water contacts the cold air entering the tower body 10 from the outside to evaporate and dissipate heat. The air coming out of the first channel 113 is saturated hot and humid air; while the air coming out of the second channel 114 is dry and hot air. The two streams of air pass through the water eliminator After 12, enter the gas mixing chamber 14 to mix, the mixed air is unsaturated air, and the unsaturated cold air will not produce rain and mist in the dilution process with the ambient cold air of the outside after coming out from the air duct 16 at the top of the tower body 10. This is the defogging mode. Or turn on the second spray 22 and close the first spray device 21 to achieve the same defogging effect.

In summer, since the cooling tower is basically free of rain and fog, and must exert the greatest thermal efficiency (full wet and cold operation), at this time, the first splashing device 21 and the second splashing device 22 are turned on at the same time, and the hot water sprayed by the first splashing device 21 Entering the first channel 113, the hot water sprayed by the second splashing device 22 enters the second channel 114. At this time, the hot water and the cold air in the first channel 113 and the second channel 114 all contact, evaporate and dissipate heat to maximize thermal efficiency. . This is the fog-free mode.

In the cooling tower of the present invention, a first passage 113 and a second passage 114 spaced apart from each other are arranged inside the mist removal module 11, and the water distribution system 20 is respectively provided with a first splash device 21 and a second splash device 21 corresponding to the first passage 113 and the second passage 114. Splashing device 22; when the first splashing device 21 is turned on and the second splashing device 22 is closed, the first splashing device 21 sprays hot water to the first channel 113, and the defogging mode is turned on to reduce part of the evaporation loss and Low-mist operation; turn on the first spray device 21 and the second spray device 22 at the same time, then switch to the no-mist mode, so as to achieve no fog and no evaporation loss. The cooling tower of the present invention can switch between the fog-eliminating mode and the non-fog-eliminating mode, so as to meet the use requirements of different working conditions and maximize the heat exchange effect.

The defogging module 11 of the present invention adopts the compression molding of the first packing sheet 111 of "Z" shape, and the second packing is arranged on the first packing sheet 111, so that the corrugation of the first packing sheet 111 is consistent with the second packing sheet 112 The corrugations cross each other to form staggered channels, which can better disperse the water flow and improve the heat exchange efficiency.

Inspired by the ideal embodiment according to the present invention, through the above description, relevant workers can make various changes and modifications without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims (9)

1. A plate-changing type anti-fog module, characterized in that: it includes a first packing sheet and a second packing sheet, both of which are corrugated plates, and the first packing sheet The cross-section of the first packing sheet is in the shape of "Z". There is a connecting piece in the middle of the first packing sheet, and the two sides of the connecting piece are concave. The second packing sheet is arranged on the two sides of the first packing sheet. The surface is concave, and the corrugations of the second packing sheet are arranged obliquely to the corrugations of the first packing sheet. 2. The plate-replacing fog-eliminating module according to claim 1, characterized in that: the first packing sheets are stacked and compression-molded, and the first packing sheets are combined to form a first channel and a second channel that are isolated from each other . 3. The plate-replacement type anti-fog module according to claim 2, characterized in that: the second packing sheet is rhombus-shaped. 4. A cooling tower, characterized in that: it comprises a tower body and the mist elimination module according to any one of claims 1-3, the mist elimination module is arranged inside the tower body, and the mist elimination module The inner space of the tower body is divided into an air inlet chamber and a gas mixing chamber. 5. The cooling tower according to claim 4, further comprising a water distribution system, the water distribution system is provided with a first splashing device and a second splashing device, and the first splashing device is arranged on the above the first passage, and the second splashing device is arranged above the second passage. 6. The cooling tower according to claim 5, characterized in that: a water pool is arranged under the tower body, and the water pool communicates with the air inlet chamber. 7. The cooling tower according to claim 4, characterized in that: a water eliminator is arranged inside the tower body, and the water eliminator is arranged above the demisting module. 8. The cooling tower according to claim 4, characterized in that: a first flow guiding device, a second flow guiding device and a third flow guiding device are arranged in the gas mixing chamber. 9. The cooling tower according to claim 8, characterized in that: an air duct is arranged above the tower body, and a fan and a motor for driving the fan are arranged at the air duct.