KR101626024B1 - Preventing white plume of cooling tower using air heat source - Google Patents

Abstract

The present invention relates to an apparatus for preventing white smoke from cooling towers using an air heat source, and more particularly, to an apparatus and a method for cooling a cooling tower, In order to reduce the occurrence of white smoke by using the multi-stage heating of wet steam and to increase the stagnation time of wet steam by installing an eliminator between many internal components, The present invention also relates to a cooling tower anti-flame prevention apparatus using an air heat source for preventing inflow of low-temperature outside air into an upper portion of a housing to prevent degradation of wet steam removal efficiency.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooling tower anti-

The present invention relates to a white smoke prevention device for a cooling tower for preventing the occurrence of white smoke at the time of discharge by heating a wet steam generated in a device for cooling high-temperature cooling water to an air heat source through a heating part provided in multiple stages.

Generally, a high-temperature cooling water sent from a high-temperature condenser that has undergone heat exchange is cooled by a heat exchanger such as a freezer or an air conditioning facility (cooling tower, wet dust collector, industrial drying facility and boiler, generator, A cooling tower is used to provide recirculation.

In order to remove heat from the cooling water that has become hot, various types of structures and methods have been applied to the cooling tower. Cooling methods using air are widely used.

As a method of cooling using air, there is used a method in which cooling water is cooled by blowing air forcefully by natural ventilation or a blower while spraying high-temperature cooling water into a heat-exchange filler or dropping water droplets.

These cooling towers are categorized into a cross flow type, a counter flow type and a hybrid type according to the heat exchange type.

Here, in the orthogonal flow type, the cooling water is caused to flow by causing the high-temperature cooling water and the flow of the air introduced from the outside to mutually cross each other to cool the cooling water. In the countercurrent type, the flow of the high- And the hybrid type is constituted by a combination of an orthogonal type and a countercurrent type.

However, the conventional cooling tower has the following problems.

First, the air cooled by the cooling water in the heat exchange filler material contains a large amount of water vapor. As the air in this state is discharged to the outside, plume phenomenon occurs and it is misunderstood that the harmful substance is discharged from the outside There is a possibility that such white smoke can damage the aesthetics of the city or sightseeing spot, and the white smoke generated near the airfield may cover the visibility of an airplane pilot or helicopter pilot. Because the wet steam is blown out to the road and makes the road ice,

In some cases, problems have arisen.

Second, as the air cooled by the cooling water in the heat-exchange filler material contains a large amount of water vapor, various components such as a blowing fan and a blower fan, which are in contact with a moving air, are frozen in the winter season and the performance of the apparatus may be deteriorated.

Third, in the case of the orthogonal flow type, there is a problem in that a blind spot that does not prevent white smoke is generated in the central part of the cooling tower, and the wet steam is discharged to the upper part by the fan.

Accordingly, there is a desperate need to develop an incandescent prevention device that not only effectively removes the humidified air (water vapor contained in the air) discharged after heat exchange but also efficiently and economically removes steam.

It is an object of the present invention to provide a means for solving the above-mentioned problems. As described above, an object of the present invention is to provide a cooling device for a high- A heating section is provided in a multi-stage moving passage of the humidifier to evaporate the humidified air through the air heat source and a filling section and an eliminator for stagnating the movement of the humidified gas between the plural configurations are further installed Which is capable of further increasing the vaporization efficiency (wet steam removing efficiency) by lowering the rising speed of the rising wet steam.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

In order to solve the above-mentioned problems, the present invention provides a spraying apparatus comprising: a spraying part (20) for spraying cooling water, which is used for cooling and is heated to a high temperature, into an inner lower end of a housing (10); A filling unit 30 installed at a lower end of the atomizing unit 20 for exchanging heat with the outside air introduced into the housing 10 and changing the cooling water into a wet steam; A primary elimator 40 at the upper end of the spray section 20 for reducing the rising velocity of the wet vapor to be raised; A primary heating unit 50 that primarily provides an air heat source for heating the humidifier at the upper end of the primary eliminator 40; A secondary eliminator (60) at the upper end of the primary heating unit to decrease the rising speed of the rising wet steam, thereby increasing the vaporization time of the wet steam; A secondary heating unit (70) for providing, at the upper end of the secondary eliminator (60), an air heat source for heating and evaporating the remaining moisture in the humidified steam; And a control unit.

As described above, the present invention has an effect of preventing white smoke, which is generated during cooling of the high-temperature cooling water, in advance.

In addition, the present invention has an effect of preventing the outside air from the top of the cooling tower from flowing into the inside of the cooling tower so that the efficiency of removing the wet steam in the cooling tower is not reduced.

In addition, the present invention has an effect of increasing the removal efficiency of wet steam for preventing white smoke by providing an eliminator between various components to increase the stagnation time in the cooling tower of the rising steam and the discharged wet steam.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front cross-sectional view of an embodiment of a white smoke prevention device according to the present invention. FIG.
2 is a plan view of an embodiment of a heating unit according to the present invention;
3 is a front sectional view of another embodiment of the anti-whitening device according to the present invention.

Before describing in detail several embodiments of the present invention, it will be appreciated that the application is not limited to the details of construction and arrangement of elements set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front,""back,""up,""down,""top,""bottom, Expressions and predicates used herein for terms such as "left,"" right, ""lateral," and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

In one embodiment of the present invention for this purpose, a spraying unit 20 for spraying the cooling water, which is used for cooling and is heated to a high temperature, into the inner lower end of the housing 10; A filling unit 30 installed at a lower end of the atomizing unit 20 for exchanging heat with the outside air introduced into the housing 10 and changing the cooling water into a wet steam; A primary elimator 40 at the upper end of the spray section 20 for reducing the rising velocity of the wet vapor to be raised; A primary heating unit 50 that primarily provides an air heat source for heating the humidifier at the upper end of the primary eliminator 40; A secondary eliminator (60) at the upper end of the primary heating unit to decrease the rising speed of the rising wet steam, thereby increasing the vaporization time of the wet steam; A secondary heating unit (70) for providing, at the upper end of the secondary eliminator (60), an air heat source for heating and evaporating the remaining moisture in the humidified steam; And a control unit.

The second heating part 70 is provided at the upper end of the second heating part 70 so that the outside air is prevented from flowing into the secondary heating part 70 through the upper outlet 14 of the housing 10, A tertiary eliminator (80) for preventing the efficiency of heating and evaporating the wet steam in the heating section (70) from being reduced; Is further provided.

In addition, the primary heating unit 50 and the secondary heating unit 70 include a heat source-providing tube 51 having both ends opened and bent; Heating means (52) for heating and discharging air in the heat source-providing tube (51) and a circulation fan (53); Wherein a plurality of the primary heating units (50) are mutually opposed and horizontally installed to circulate the air heat source.

Hereinafter, a cooling tower anti-flame prevention apparatus using an air heat source according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3. FIG.

As shown in the drawing, the cooling tower anti-flame prevention apparatus 100 using an air heat source according to the present invention includes a spraying unit 20, a filling unit 30, a primary eliminator 40, a primary heating unit 50 ), A secondary eliminator (60), a secondary heating section (70), and a tertiary eliminator (80).

The above configuration is installed in the housing 10 of the present invention. The housing 10 is provided with a ventilating means externally open and open at the top, A fan 13 is installed so that the inside of the humidifier is discharged to the outside through the discharge port 14 at the upper end while the lower bottom is used for cooling various facilities provided with the cooling tower of the present invention, A water collecting tank 11 for collecting cooling water cooled by falling down by various components (e.g., primary heating unit 50, secondary heating unit 70, etc.) installed in the housing 10 is formed.

Of course, the cooling water dropped into the water collecting tank 11 is recycled for cooling various facilities (ex: air conditioner, heat exchanger, etc.) and then recycled to the cooling tower anti- It is a recurring cycle.

In addition, an outer air inlet 12 through which the outside air flows is formed in the outer periphery of the lower end of the housing 10 so as to be heat-exchanged with the high-temperature cooling water sprayed to the spray portion 20 described later in the housing 10 .

The spray unit 20 is installed at the lower end of the housing 10 as described above and more specifically includes a spray pipe 21 horizontally installed inside the housing 10, And a plurality of spray nozzles 22 spaced from each other in the longitudinal direction of the housing 10 and protruding toward the lower end of the housing 10.

That is, the cooling water, which is used for cooling various facilities by absorbing heat, is introduced into the spray pipe 21 by the high-temperature cooling water, and then the cooling water is supplied to the lower end of the housing 10 through which the outside air flows through the plurality of spray nozzles 22 It is sprayed.

The filling part 30 is formed of a filling material of a rectangular fill material, a circular fill material, a ball fill material, etc. for maximizing the heat exchange efficiency by lengthening the heat transfer area and the air blowing time of the cooling water and the outside air, The cooling water heated by the spraying unit 20 is sprayed to the lower end of the upper end of the filling unit 30 and flows to the lower end of the filling unit 30. At the lower end of the filling unit 30, The outside air flowing from the outside of the housing 10 flows into the inside of the filling section 30 so that the cooling water and the outside air heated in the filling section 30 exchange heat with each other.

That is, the filling unit 30 functions to accelerate the heat transfer to the outside air by decreasing the falling speed of the cooling water sprayed to increase the contact time with the outside air. In the filling unit 30, The cooling water which has been cooled by the heat exchange with the outside air or cooled is supplied to the water collecting tank (not shown) of the bottom of the housing 10 11).

The primary heating unit 50 and the secondary heating unit 70 provide an air heat source to vaporize the humidifier generated in the filling unit 30 and rising to the upper portion of the housing 10, And to prevent the white smoke occurring when the temperature of the outdoor unit 10 is low, such as in autumn or winter, when the outdoor unit is heated.

To this end, in the present invention, the primary heating unit 50 is installed at the upper end of the atomizing unit 20, and the secondary heating unit 70 is disposed continuously at the upper end of the primary heating unit 50, So that residual moisture remaining by the secondary air heat source can be removed while the wet humidifier continuously passes through the secondary heating unit 70 by the air heated by the air heating source .

Of course, in the present invention, only two of the heating units are installed over the first and second heating units. However, in order to prevent the occurrence of the white smoke phenomenon due to the cold outside air and the humid air in winter, It is also possible to configure them continuously.

The primary heating unit 50 and the secondary heating unit 70 for this purpose are different from each other only in the installation position and have the same structure. For convenience of explanation, the primary heating unit 50 will be described as a reference.

The primary heating unit 50 is horizontally installed in the housing 10 so as to be spaced apart from the upper end of the spray unit 20. The primary heating unit 50 includes a heating source 51 and heating means 52 and a circulating fan 53. [

The heat source-providing tube 51 is hollow and has both ends opened. Both ends of the heat source-providing tube 51 are bent in the same direction and are installed in a shape such as '∪' or '∩' The heating unit 50 is provided with a heating unit (ex: heating coil, heater, etc.) 52 and a circulating fan 53 spaced apart from each other so as to generate a high-temperature air heat source in the heat source- So that the wet vapor generated in the filling section 30 and rising through the spray section 20 is vaporized by the air heat source.

Of course, in order to enhance the effect of heating and humidifying the humidifier through the air heat source, the primary heating unit 50 is divided into a separate heating space 54 in the housing 10, So that the humidifier passes through the heating space 54 from the lower end thereof to the upper end thereof, and is over-vaporized.

Alternatively, as described above, it is possible to provide a heat source air to heat the humidifier lifted up from the lower end through the heat source air, as well as a method in which the humidifier is sucked into the open end of the heat source supply tube 51, It may be heated and heated by the heating means 52 in the tubular body 51 so that the humidifier is discharged to the other end of the heat source-providing tube 51.

In addition, in the case where a plurality of (or a plurality of) first heating portions 50 are opposed to each other (assuming that a plurality of first heating portions 50 are installed) , And the remaining primary heating units 50 are installed in the form of '∪', and are installed horizontally with respect to each other in such a manner that about half of their lengths are opposed to each other and face each other. So that the air heat source in the region (heating space 54) where the first heating portion 50 is installed can be formed to be uniformly circulated in the horizontal direction over the entire region where the primary heating portion 50 is installed.

The water in the humidifier is removed to some degree before the humidifier passes through the secondary heating unit 70 which will be described later and the primary heating unit 50 in the secondary heating unit 70, To remove residual moisture in the remaining humidifier. The temperature of the air heat source of the primary heating unit 50 can be preset (the temperature of the heating unit 52, the driving time, the driving time interval, and the like are controlled).

As described above, the secondary heating portion 70 provided at the lower end of the primary heating portion 50 is also formed in the same structure and configuration as the primary heating portion 50 described above.

The primary and secondary eliminators 40 and 60 are horizontally installed in the housing 10 and a primary eliminator 40 is installed between the spray unit 20 and the primary heating unit 50 And a secondary eliminator 60 is provided between the primary heating unit 50 and the secondary heating unit 70, respectively.

The primary and secondary eliminators 40 and 60 refer to zigzag-like obstruction plates or diaphragms used for removing moisture (water droplets) from the humidifier. Is increased through the primary eliminator (40) to increase the residence time in the housing (10), so that the removal time of the humidifier can be increased through the air heat source which is firstly provided in the primary heating section The residence time in the housing 10 is prolonged by the secondary eliminator 60 and the secondary air supplied from the secondary heating unit 70 (Vaporization) time of residual moisture in the wet steam from which most of the moisture is removed through the first heating part through the heat source, thereby increasing the white smoke prevention efficiency.

The tertiary eliminator 80 is made of the same material and shape as those of the primary and secondary eliminators 40 and 60 described above. According to the embodiment of the present invention, the secondary heaters 70).

That is, the tertiary eliminator 80 serves to stall the rising time of the humidifier to be longer, as in the case of the first and second eliminators 40 and 60, and at the same time, the tertiary eliminator 80 The outside air of low temperature in winter is introduced into the secondary heating section 70 side through the discharge port 14 and the ventilation means 13 located at the uppermost end of the housing 10, To prevent the outside air from flowing into the secondary heating unit 70 from the upper portion of the housing 10 so as to prevent the problem of deterioration of the wet steam removing efficiency by mixing with the air heat source .

According to the present invention, there is provided an apparatus for preventing white smoke of a cooling tower 100 having the above-described structure, wherein, according to the embodiment of the user or the winter temperature, another heating (for example, the first and second heating units 50 and 70) And the first, second and third extenders 40, 60, and 80 may be provided in pairs in the housing 10 in such a manner that the first and second and third extenders 40, 60,

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: housing 11: water collecting tank
12: outside air inlet 13:
14: exhaust port 20:
21: spray nozzle 22: spray nozzle
30: filling part 40: primary eliminator
50: primary heating section 51: heat source providing tube
52: Heating means 53: Circulating fan
54: Heating space 60: Secondary eliminator
70: secondary heating section 80: tertiary eliminator

Claims (3)

A spraying portion 20 for spraying cooling water, which has been used for cooling and is heated to a high temperature, into an inner lower end of the housing 10;
A filling unit 30 installed at a lower end of the atomizing unit 20 for exchanging heat with the outside air introduced into the housing 10 and changing the cooling water into a wet steam;
A primary elimator 40 at the upper end of the spray section 20 for reducing the rising velocity of the wet vapor to be raised;
A primary heating unit 50 that primarily provides an air heat source for heating the humidifier at the upper end of the primary eliminator 40;
A secondary eliminator (60) at the upper end of the primary heating unit to decrease the rising speed of the rising wet steam, thereby increasing the vaporization time of the wet steam;
And a secondary heating unit (70) for providing, at the upper end of the secondary eliminator (60), an air heat source for heating and evaporating the remaining moisture in the wet steam,
The primary heating unit 50 and the secondary heating unit 70 are provided with a heat source providing tube 51 bent at both ends and opened and a heating means 52 for heating and discharging the air in the heat source providing tube 51 And a circulating fan (53), wherein a plurality of the primary heating units (50) are opposed to each other and horizontally installed to circulate the air heat source.
The method according to claim 1,
Is installed at the upper end of the secondary heating part 70 to block the outside air from flowing into the secondary heating part 70 through the upper discharge port 14 of the housing 10, A tertiary eliminator (80) to prevent the evaporation efficiency of the humidified steam in the evaporator (70) from being reduced;
Wherein the cooling tower further comprises an air cooling source for cooling the cooling tower.
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