KR102350168B1 - Energt saving type hybrid cooling tower - Google Patents

Abstract

The present invention relates to an energy-saving hybrid cooling tower which comprises: a cooling water mainframe placed so that external air can be introduced from a lower end center unit and both side units into the inside, and wet air formed inside can be discharged through an upper center unit; a counter flow-type water-cooling condensing unit installed in an inner center unit of the cooling tower mainframe, and supplying hot water toward a lower side, and allow the heat exchange through contact with the external air introduced from a lower center unit; direct exchange-type water-cooling condensing units installed on both inner edge units of the cooling tower mainframe, and allowing the heat exchange through contact with the external air introduced from the both side units; and cooling water outlets placed on both lower end side units of the cooling water mainframe for supplying the cooling water generated through heat exchange between the counter flow-type water-cooling condensing unit and the direct exchange-type water-cooling condensing units to a cooling water line. According to the present invention, all of the counter flow-type water-cooling condensing unit and the direct exchange-type water-cooling condensing units are placed together in the cooling tower mainframe according to the structural layout design, and a greater treating capacity can be provided than that of the conventional direct exchange-type cooling tower, while reducing the total scale and load of the cooling tower. In addition, according to the present invention, the energy-saving hybrid cooling tower can be installed at any place including a rooftop of a building, and can reduce the required power from that of the conventional cooling tower of the same grade, thereby saving energy and making less noise.

Description

Energy-saving hybrid cooling tower {ENERGT SAVING TYPE HYBRID COOLING TOWER}

The present invention relates to a cooling tower, and more particularly, to reduce the size and load while increasing the processing capacity compared to the existing equivalent, and to be installed on the roof of a building without being limited by the installation location and reducing the power required. It relates to an energy-saving hybrid cooling tower that can save energy.

In general, a cooling tower is a device that cools the remaining water as part of the water evaporates by exchanging water with air, and can be called a type of heat exchange device.

That is, the cooling tower uses the natural principle that water is cooled by heat transfer due to a temperature difference.

Such a cooling tower is connected to the indoor unit used for heating and cooling of the air conditioning space through a cooling water line and circulated, performing heat exchange for cooling and heating in the indoor unit, and then moving to the cooling tower along the cooling water line to cool it again through heat exchange with outdoor air.

On the other hand, in such a conventional cooling tower, particularly, a cross-flow type cooling tower, since the cooling tower is relatively large, it is difficult to install it on the roof of a building, so most of them are installed on the ground, and there is a problem that the installation place is limited.

In addition, in the case of increasing the processing capacity of the cooling tower in the prior art, not only the overall size but also the weight of the cooling tower increases, and the power required for the operation of the cooling tower must also be greatly increased. There was a problem being

Meanwhile, in the prior art, energy-saving cooling towers may refer to Korean Patent Publication No. 10-2019-0062748, Korean Patent Publication No. 10-2015-0108977, and Korean Patent Registration No. 10-1703085.

Republic of Korea Patent Publication No. 10-2019-0062748 Republic of Korea Patent Publication No. 10-2015-0108977 Republic of Korea Patent Publication No. 10-1703085

The present invention has been devised in consideration of and solving the above-described problems in the prior art, and it is possible to reduce the scale and load while increasing the processing capacity compared to the same class, and to be installed on the roof of the building, so that it is not limited by the installation location. An object of the present invention is to provide an energy-saving hybrid cooling tower that can save energy, such as reducing power required.

An object of the present invention is to provide an energy-saving hybrid cooling tower that enables economic feasibility and reduces noise while increasing the operation and operating efficiency of the cooling tower.

An energy-saving hybrid cooling tower according to the present invention for achieving the above object includes: a cooling tower body provided so that external air is introduced into the inner side from a lower central portion and both sides, respectively, and the wet air formed therein is discharged through the upper central portion; a counter-flow type water-cooled condensing unit installed in the inner central portion of the cooling tower body to supply hot water downward but performing a heat exchange function through contact with external air flowing in from the lower central portion; a cross-flow water-cooling condensing unit installed on both inner edges of the cooling tower body to supply hot water downward but performing a heat exchange function through contact with external air flowing from both sides; It is for supplying cooling water generated through heat exchange between the counter-flow water-cooled condensing unit and the cross-flow water-cooled condensing unit to a cooling water line or a water collecting tank, and a cooling water outlet provided on both sides of the lower end of the cooling tower body; characterized in that it comprises a; .

Here, the counter-flow type water-cooled condensing unit includes: a wet air discharge unit for discharging humid air generated during heat exchange to an upper portion; a watering unit located below the wet air discharge unit and configured to spray hot water supplied through a process water connection line in a downward direction; a counterflow heat exchange unit for generating cooling water by inducing a downward flow of hot water to be sprayed through the watering unit, and heat-exchanging heat through contact with external air flowing in from a lower central portion of the cooling tower body; The external air flowing in from the lower center of the cooling tower body is raised and guided to the counter-flow heat exchange unit, and at the same time, the flow of the cooling water generated through the counter-flow type heat exchange unit is guided downward while leading to both sides to guide the outside air and cooling water to the cooling water outlet. guide; may include.

Here, the external air and cooling water transport guide has a certain length when viewed from the front, but has a structure that slopes downward from the center to the left and right sides, and has an 'S'-shaped curved structure when viewed from the side cross-section. It has a structure including a coolant escape sill at the lower end that is bent inwardly and extends, and by arranging a plurality of gaps in the front and rear directions, the outside air is guided upward through the gap between the outside air and the coolant transfer guide, and the outside air and by guiding the cooling water downward to both sides through the cooling water transfer guide, it can be configured to prevent and minimize mutual interference between the outside air and the cooling water.

Here, the wet air outlet is a configuration in which a plurality of wet air outlets that are partitioned and distributed are arranged in a continuous line, and formed in a straight structure with respect to the upper and lower ends, but arranged diagonally with respect to the middle part to have a certain inclination. The configuration may be formed.

Here, the cross-flow water-cooled condensing unit includes: a watering unit for spraying hot water supplied through the process water connection line in a downward direction; A cross-flow type heat exchange unit that generates cooling water by heat-exchanging heat through contact between the hot water sprayed from the watering unit and external air flowing in from the side part, and external air flowing in from the side part is discharged to the opposite side. ; and a filler installed inside the cross-flow heat exchange unit to increase heat exchange efficiency.

According to the present invention, the overall size and load of the cooling tower can be reduced while increasing the processing capacity compared to the cooling tower of the same class, and it can be installed on the roof of a building, regardless of the installation location, and the power required compared to the existing cooling tower of the same class can be reduced. The utility of saving energy can be achieved.

For example, it can be manufactured by increasing the processing capacity to 700RT without increasing the size of the existing cross-flow cooling tower 500RT. Power corresponding to horsepower is required, and according to the present invention, not only can it be manufactured with only one set of the existing 500RT cross-flow cooling tower, but power of 20 horsepower is sufficient, so energy can be saved compared to the existing one, and the installation site can be reduced It is possible to achieve usefulness that is not limited by

According to the present invention, the counter-flow type water-cooled condensing unit and the cross-flow type water-cooled condensing unit are embedded together in the cooling tower body, but have a structural arrangement design that does not interfere with each other, and can exhibit low noise characteristics even when the overall size and power of the cooling tower are increased usefulness can be achieved.

According to the present invention, it is possible to realize economic feasibility while increasing the operation and operating efficiency of the cooling tower compared to the prior art, and it is possible to achieve usefulness that can increase utility value.

1 is an overall configuration diagram showing an energy-saving hybrid cooling tower according to an embodiment of the present invention.
2 is a plan view showing an energy-saving hybrid cooling tower according to an embodiment of the present invention.
3 is a view showing the detailed configuration of the counter-flow water-cooled condensing side in the energy-saving hybrid cooling tower according to an embodiment of the present invention.
4 is a view showing the detailed configuration of the cross-flow water-cooled condensing side in the energy-saving hybrid cooling tower according to an embodiment of the present invention.

Preferred embodiments of the present invention will be described with reference to the accompanying drawings as follows, and through such detailed description, it will be possible to better understand the purpose and configuration of the present invention and its features.

The term 'hot water' used below can be defined as 'hot water (process water with high temperature)' that is used for cooling in mechanical devices such as refrigerators and then heat exchanged and has a flow to the cooling tower, and 'cooling water' is this It can be defined as 'cold water' that is generated by heat exchange through the cooling tower of the invention and sent to a mechanical device such as a refrigerator.

As shown in FIGS. 1 to 4, the energy-saving hybrid cooling tower according to an embodiment of the present invention includes a cooling tower body 10, a counter-flow water-cooled condensing unit 20, a cross-flow water-cooled condensing unit 30, and process water. It consists of a configuration including a connection line (40).

The cooling tower body 10 is provided so that external air flows in from the lower central portion and the left and right side portions, respectively, and exhaust air formed therein through the upper central portion.

That is, in the cooling tower body 10, the outside air inlet 11 is formed as a lower center portion, the outside air inlet 12 is formed on the left and right side surfaces, and the wet air outlet 13 is formed at the upper center portion.

In this case, the outside air may be referred to as dry air, and it may be said that cold dry air is introduced in spring, autumn, and winter depending on the seasonal outdoor temperature.

A blower 14 is installed at the upper end of the cooling tower body 10 to increase the discharge efficiency of the wet air on the side of the wet air discharge unit 13 .

In addition, in the cooling tower body 10, the cooling water generated through heat exchange between the counter-flow water-cooled condensing unit 20 and the cross-flow water-cooled condensing unit 30 is supplied back to a mechanical device such as a refrigerator through a cooling water line. As a result, cooling water outlets 15 provided on both sides of the lower end of the cooling tower body 10 are provided.

The cooling tower body 10 introduces outside air through the lower central portion, but includes a leg portion having a predetermined height for smooth introduction of the outside air.

Preferably, the cooling water outlet 15 is disposed on both sides of the lower end of the counter-flow type water-cooled condensing unit 20 .

The counter-flow water-cooled condensing unit 20 is installed in the inner central portion of the cooling tower body 10 to supply hot water downward, but to perform a heat exchange function through contact with external air flowing from the lower central portion.

The counter-flow type water-cooled condensing unit 20 is spaced apart from the cross-flow type water-cooled condensing unit 30 so as not to interfere with each other.

In detail, the counter-flow type water-cooled condensing unit 20 includes a wet air discharge unit 21 for discharging humid air (wet air) generated during heat exchange to the upper side, and the wet air discharge unit 21. It is located below the process water A watering unit 22 for spraying the hot water supplied through the connection line 40 in a downward direction, and a downward flow of the hot water sprayed through the watering unit 22 is induced, but from the center of the lower end of the cooling tower body 10 The counter-flow heat exchange unit 23 generates cooling water by exchanging heat through contact with the incoming external air, and the external air flowing in from the lower center of the cooling tower body 10 is raised to the counter-flow heat exchange unit 23. At the same time, it includes an external air and cooling water transfer guide 24 that guides the flow of the cooling water generated via the counter-flow heat exchange unit 23 downward while guiding it to both sides to guide the cooling water outlet 15 to the cooling water outlet 15 .

The wet air outlet 21 is formed by arranging a plurality of wet air outlets to be divided and distributed in a continuous line, and as shown in the figure, it is formed in a straight structure with respect to the upper and lower ends, but is diagonally disposed with respect to the middle part to obtain a certain inclination. It is preferable to form it in an inclined structure with

By forming such a structure, it is possible to reduce noise generation by forming an exhaust path of the wet air, and to induce drying of the wet air on the exhaust path, thereby reducing the white smoke phenomenon when in contact with external air.

The water sprinkling unit 22 may use a water eliminator.

The counter-flow heat exchange unit 23 is provided as a coil-type condensing pipe.

As shown in FIG. 2, the external air and cooling water transfer guide 24 has a predetermined length when viewed from the front, but has a structure that slopes downward from the center to the left and right sides. In addition, as shown in FIG. It is a structure having a curved structure of an 'S' shape when viewed, but has a structure including a coolant escape sill 24a extending inwardly bent at the lower end.

At this time, as shown in FIG. 3 , the outside air and cooling water conveying guides 24 are arranged at intervals in the front and rear directions of the cooling tower body 10 to increase the interval between the outside air and cooling water conveying guides 24 . It is provided to guide the outside air upward through the gap, and to guide the cooling water downward to both sides by using the structural features of the outside air and the cooling water transfer guide 24 itself.

Through this, it is possible to prevent and minimize the mutual interference of the external air transported upward and the cooling water transported downward, and it is possible to provide the advantage of reducing noise generation.

The cross-flow type water-cooled condensing unit 30 is installed in a pair structure on both inner edges of the cooling tower body 10 to supply hot water downward, but to perform a heat exchange function through contact with external air flowing in from both side surfaces. do.

In detail, the cross-flow type water-cooled condensing unit 30 includes a watering unit 31 for spraying the hot water supplied through the process water connection line 40 in a downward direction, and the hot water sprayed from the watering unit 31 and The cross-flow heat exchange unit 32, which is provided so as to generate cooling water by exchanging heat through cross-flow contact with the external air flowing in from the side part, and is capable of discharging the external air flowing in from the side part to the opposite side, and the cross-flow heat exchange It is installed inside the part 32 and includes a filler 33 for increasing heat exchange efficiency.

The water spraying unit 31 may use a water eliminator.

The filler 33 is a plate-shaped structure having a structure for inducing water flow, and may be horizontally or vertically disposed, and may consist of a laminated body in which a plurality of plate-shaped structures are laminated and coupled.

The operation and operation of the energy-saving hybrid cooling tower according to the present invention having the above-described configuration will be described as follows.

After being used for cooling from a mechanical device such as a refrigerator, hot water, which has been used for cooling, is heated through the process water connection line 40 to the counter-flow type water-cooled condensing unit 20 and the cross-flow type water-cooled condensing unit 30, respectively. hot water) is distributed.

According to the supply of such hot water, in the counter-flow type water-cooled condensing unit 20 , the water spray unit 22 sprays the hot water in a downward direction.

The sprayed hot water flows into the counter-flow heat exchange unit 23 and falls downward. In the counter-flow heat exchange unit 23, the hot water that falls downward and the external air that rises from the center of the lower end of the cooling tower body 10 come into contact with each other. and heat exchange is performed, whereby hot water is made into cold water.

In this way, the cooling water generated by heat exchange in the counter-flow heat exchange unit 23 is transported downward while preventing interference with external air and rising external air through the cooling water transport guide 24, and at the same time, by inducing it to the left and right sides, the cooling water outlet ( The cooling water is guided to 15) and sent back to mechanical devices such as refrigerators to be used for cooling treatment to maintain room temperature.

That is, it is possible to prevent and minimize the mutual interference of the external air transported upward through the external air and cooling water transport guide 24 and the cooling water transported downward, and it is possible to provide an advantage of reducing noise generation.

At this time, the rising external air used for heat exchange of hot water in the counter-flow heat exchanger 23 passes through the counter-flow water-cooled condensing unit 20 and becomes wet air.

In addition, in the cross-flow type water-cooled condensing unit 30 provided as a pair, each of the watering units 31 sprays hot water in a downward direction.

The water spray-treated hot water flows into the cross-flow heat exchange unit 32 having the filler 33 embedded therein and falls downward. At this time, the hot water is contacted with the external air flowing in from the side part of the cooling tower body 10 and heat exchange is performed, whereby the hot water is made of coolant.

In this way, the cooling water generated by heat exchange in the cross-flow heat exchange unit 30 is guided to the cooling water outlet 15 along the transport path, and sent back to a mechanical device such as a refrigerator to be used for cooling treatment for maintaining the room temperature.

In addition, the external air moving laterally after being used for heat exchange of hot water in the cross-flow heat exchange unit 30 passes through the cross-flow water-cooled condensing unit 30 and becomes wet air.

In addition, the cooling tower body 10 discharges the humid air discharged from the counter-flow type water-cooled condensing unit 20 and the cross-flow type water-cooled condensing unit 30 to the outside.

Accordingly, through the present invention, the overall size and load of the cooling tower is reduced while increasing the processing capacity compared to the existing cross-flow cooling tower by designing the structure in a configuration in which the counter-flow type water-cooled condensing unit and the cross-flow type water-cooled condensing unit are embedded together in the cooling tower body. It can be installed on the roof of a building, regardless of the installation location, and it can reduce the power required compared to the existing cooling tower of the same class, thereby saving energy and providing the advantage of exhibiting low noise characteristics.

The embodiments described above are merely illustrative of preferred embodiments of the present invention and are not limited to these embodiments, and various modifications and variations by those skilled in the art within the technical spirit and claims of the present invention It will be said that this can be done, and it will be said that it falls within the scope of the technical rights of the present invention.

10: cooling tower body 20: counter-flow type water-cooled condensing unit
21: wet air discharge unit 22: water spray unit
23: counter flow heat exchange unit 24: outside air and cooling water transfer guide
30: cross flow type water cooling condensing unit 31: water spray unit
32: cross flow heat exchanger 33: filler
40: process water connection line

Claims (5)

The cooling tower body including a leg part having a certain height for the smooth inflow of external air through the lower central part and the both sides, each of which is provided to allow outside air to be introduced inward and to discharge the wet air formed therein through the upper central part ;
a counterflow water-cooled condensing unit installed in the inner central portion of the cooling tower body to supply hot water downward, but performing a heat exchange function through contact with external air flowing in from the lower central portion;
a cross-flow water-cooled condensing unit installed on both inner edges of the cooling tower body to supply hot water downward, but to perform a heat exchange function through contact with external air flowing from both sides;
a cooling water outlet for supplying cooling water generated through heat exchange between the counter-flow water-cooled condensing unit and the cross-flow water-cooled condensing unit to a cooling water line, the cooling water outlet provided on both sides of the lower end of the cooling tower body; includes,
The counter-flow type water-cooled condensing unit,
a wet air discharge unit for discharging humid air generated during heat exchange to an upper portion;
a watering unit located below the wet air discharge unit and configured to spray hot water supplied through a process water connection line in a downward direction;
a counterflow type heat exchange unit that induces a downward flow of hot water to be sprayed through the water spray unit, heat exchanges through contact with external air flowing in from the lower center of the cooling tower body to generate cooling water, and is provided with a coil-type condensing pipe;
It is located at the center of the lower end of the cooling tower body and is located below the counter-flow heat exchanger, and raises the external air flowing in from the lower center of the cooling tower body and guides it to the counter-flow heat exchanger, and at the same time controls the flow of cooling water generated through the counter-flow heat exchanger. External air and cooling water transfer guide that guides downward and guides to both sides to guide the cooling water outlet; Energy-saving hybrid cooling tower comprising a. delete The method of claim 1,
The outside air and cooling water transfer guide,
When viewed from the front, it has a certain length but slopes downward from the center to the left and right sides.
When viewed from the side cross-section, it has an 'S'-shaped curved structure, but includes a cooling water escape sill that is bent inwardly at the lower end and extends,
By arranging multiple numbers in the front-rear direction, the outside air is guided upward through the gap between the outside air and the cooling water conveying guide, and the cooling water is guided downward to both sides through the outside air and the cooling water conveying guide. Energy saving hybrid cooling tower characterized by preventing and minimizing interference. The method of claim 1,
The wet air discharge unit,
A configuration in which a plurality of wet air outlets that are partitioned and distributed are arranged in a continuous line, and formed in a straight structure with respect to the upper and lower ends, but arranged diagonally with respect to the middle portion to form an inclined structure with a certain inclination. type hybrid cooling tower. The method of claim 1,
The cross-flow type water-cooled condensing unit,
a watering unit for spraying hot water supplied through the process water connection line in a downward direction;
A cross-flow type heat exchange unit that generates cooling water by heat-exchanging heat through contact between the hot water sprayed from the watering unit and external air flowing in from the side part, and external air flowing in from the side part is discharged to the opposite side. ;
a filler installed inside the cross-flow heat exchange unit to increase heat exchange efficiency; Energy-saving hybrid cooling tower comprising a.

Images