KR20120046669A - Apparatus for preventing white plume and cooling tower with the same - Google Patents

Apparatus for preventing white plume and cooling tower with the same Download PDF

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Publication number
KR20120046669A
KR20120046669A KR1020110051266A KR20110051266A KR20120046669A KR 20120046669 A KR20120046669 A KR 20120046669A KR 1020110051266 A KR1020110051266 A KR 1020110051266A KR 20110051266 A KR20110051266 A KR 20110051266A KR 20120046669 A KR20120046669 A KR 20120046669A
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KR
South Korea
Prior art keywords
cooling
unit
cooling unit
exhaust air
air
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KR1020110051266A
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Korean (ko)
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KR101197283B1 (en
Inventor
김윤섭
박권일
윤선권
윤여진
정순우
조종주
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정순우
주식회사 에스디알앤디
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Priority to KR1020100106686 priority
Application filed by 정순우, 주식회사 에스디알앤디 filed Critical 정순우
Publication of KR20120046669A publication Critical patent/KR20120046669A/en
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Publication of KR101197283B1 publication Critical patent/KR101197283B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/16Arrangements for preventing condensation, precipitation or mist formation, outside the cooler
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/02Direct-contact trickle coolers, e.g. cooling towers with counter-current only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/003Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/14Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange

Abstract

PURPOSE: A white lead generation preventing apparatus and a cooling tower including the same are provided to effectively prevent white lead by reducing the amount of water vapor included in exhaust air and increasing the amount of the minimum amount of water vapor required for generation of white lead. CONSTITUTION: A white lead generation preventing apparatus comprises a cooling unit(510), a heating unit(520), and an energy supply unit(530). The cooling unit cools exhaust gas including water vapor in order to condense and remove a part of the water vapor. The heating unit heats and dries the exhaust gas cooled by the cooling unit. The energy supply unit provides additional energy to the refrigerant heated by the exhaust gas in the cooling unit and transfers the refrigerant to the heating unit. The heating unit uses the heat the refrigerant obtains from the cooling unit and the additional energy provided from the energy supply unit.

Description

White smoke prevention device and cooling tower with same {APPARATUS FOR PREVENTING WHITE PLUME AND COOLING TOWER WITH THE SAME}

The present invention relates to an apparatus for preventing white smoke generation and a cooling tower having the same, and more particularly, to an apparatus for preventing white smoke generation and a cooling tower having the same having a very low maintenance cost and initial installation cost. .

In general, white plume phenomenon is that the exhaust air containing a large amount of water vapor from cooling towers, wet dust collectors, industrial drying equipment and boilers, generators, incineration facilities is rapidly taken heat away from the cold air to the outside It refers to a phenomenon in which white smoke columns are generated by condensation of water droplets into a large amount of fine water droplets.

Such plume is a form of vapor condensation, which is usually harmless to the human body, but is mistaken for its appearance as a contaminant, causing discomfort or aversion to people, and complaints are often filed to complain of such discomfort or aversion.

In addition, the white smoke hurts the aesthetics of a city or tourist destination, and white smoke generated near an airfield may obscure the view of an airplane pilot or a helicopter pilot.

Therefore, the builder or the manager of the above-mentioned white smoke generating facility has put a lot of effort and expense, such as installing a smoke prevention device to prevent such white smoke generation.

In case of the conventional smoke prevention device, the heating method is made by heating the discharged air to make it dry at high temperature, and discharging it. There is a problem that the conventional smoke generation prevention device of the heating method or condensation method is not enough to prevent the occurrence of the smoke generation, the conventional conventional smoke generation prevention device of the mixing method is complicated configuration, the maintenance cost and the initial installation cost is excessive There is a problem it takes.

As a representative facility for discharging the exhaust air containing a large amount of water vapor as described above, the cooling tower is provided in the centralized cooling system is used for cooling in the indoor unit, the cooling tower lowers the temperature of the temperature of the cooling water to be reused in the indoor unit It demonstrates concretely by an example.

Such a cooling tower is equipped with an open cooling tower that lowers the temperature of the cooling water by heat transfer generated when the cooling water and the outside air come into contact with the cooling water, and the cooling water passes through the closed circuit to close the cooling water by using the latent heat of the evaporated water sprayed on the closed circuit. Type is divided into cooling towers.

Among these, as the open type cooling tower, as shown in Figure 1, by the power of the fan 20 installed on the upper side of the body 10 flows through the inlet port 30 is opened in the lower end of the side wall of the body 10, the filler Coolant CW sprayed from the coolant nozzle 60 disposed above the filling material 40 after passing through the indoor unit 50 and the indoor unit 50 upwardly falls through the filling material 40 by gravity. By facing each other, a counterflow type cooling tower (hereinafter, referred to as a 'cooling tower' for short) that uses the principle of cooling the cooling water by inducing contact and heat transfer between the relatively low temperature outside air and the relatively high temperature cooling water (CW) is typical. to be.

That is, in such a cooling tower, the outside air, which serves to cool the cooling water CW, flows into the suction port 30, passes through the filler 40, and cools the cooling water CW while being in contact with the cooling water CW. Absorption of heat of the cooling water CW and water supplied from the cooling water CW make the air having a very high absolute humidity in a high temperature and high humidity state.

The air having a very high absolute humidity in the high temperature and high humidity is frequently discharged to the outside as exhaust air through the outlet 70 in which the fan 20 is installed, and frequently generates white smoke.

On the other hand, in the cooling tower, such white lead means that a large amount of water vapor contained in the exhaust air continues to flow out, so that the amount of cooling water CW supplying the steam to the exhaust air decreases rapidly. Therefore, as a large amount of white smoke occurs, in order to maintain a stable amount of cooling water CW above a predetermined reference level, the cooling water CW needs to be replenished more frequently.

In order to block the generation of white lead as described above, by heating the exhaust air through a separate heating facility by heating method, or by lowering the temperature of the exhaust air by contacting the low-temperature water with the exhaust air by the condensation method Although this has been attempted, in an environment such as winter when the temperature of the outside air is very low, it still does not effectively block the generation of white smoke, and there is a problem in that a large amount of energy is required to heat the exhaust air.

In order to solve the problems as described above, the present invention can be implemented by a mixing method of mixing the condensation method and the heating method as a simple structure, by using energy by minimizing the energy discarded to the outside in cooling and heating the exhaust air It is to provide a smoke prevention device and a cooling tower having the same to maximize the efficiency.

In order to solve the above problems, the apparatus for preventing smoke generation according to the present invention comprises: a cooling unit for cooling a discharge air including water vapor to condense and remove some of the water vapor; A heating unit for heating and drying the discharged air cooled by the cooling unit; And an energy supply unit for supplying heat to the heating unit by further supplying energy to the heated refrigerant by obtaining heat from the discharged air from the cooling unit, wherein the heating unit includes heat from the cooling unit and the energy supply unit. It is provided to heat the exhaust air with additionally supplied energy.

The energy supply unit is provided in a closed circuit form passing through the cooling unit and the heating unit, the refrigerant pipe filled with a refrigerant therein; And a refrigerant compressor for compressing the refrigerant obtained from the exhaust air in the cooling unit at high temperature and high pressure and transferring the refrigerant to the heating unit.

The apparatus for preventing white smoke generation may be installed as intercepting between the cooling unit and the heating unit to separate a space in which the cooling unit and the heating unit are installed, and a filter unit to remove foreign substances and water droplets included in the exhaust air. It may include.

The apparatus for preventing white smoke generation may further include external air heat exchange means for cooling the exhaust air passing through the cooling unit through heat exchange or contact with outside air.

The outside air heat exchange means may include: an auxiliary cooling unit having an internal structure through which outside air is introduced and passed through and in contact with the discharged air cooled by the cooling unit; And a driving fan for introducing and passing outside air into the auxiliary cooling unit.

The apparatus for preventing white smoke generation may further include an injection cooling unit configured to cool primarily by injecting low temperature water into the exhaust air before being cooled by the cooling unit, including a low temperature water nozzle, a low temperature water pipe, and a low temperature water pump. Can be.

Cooling tower according to the present invention, the inside is provided in the form of an empty case, the inlet is formed in the lower, the outlet formed in the upper body; A coolant nozzle provided at a center of the body to spray coolant; A fan providing power so that outside air flows through the suction port and is discharged to the discharge port; A filling material installed between the cooling water nozzle and the suction port so that the cooling water and the outside air pass to face each other, and promoting heat transfer from the cooling water to the outside air; And a cooling unit for condensing and removing a part of the steam by cooling the exhaust air including steam, a heating unit for heating and drying the exhaust air cooled by the cooling unit, and heat from the exhaust air in the cooling unit. It includes; and the smoke generation prevention device including an energy supply unit to supply additional energy to the heated refrigerant to the heating unit.

According to the apparatus for preventing white smoke generation and the cooling tower having the same according to the present invention, a cooling unit cools the high temperature and high humidity discharge air discharged after cooling the cooling water and removes water vapor, and the discharge air cooled by the cooling unit. The heating unit which is heated and dried by the heat obtained from the cooling unit and the energy supplied by the energy supply unit is provided, thereby compressing the refrigerant obtained from the cooling unit to a high temperature and high pressure state and transferring the mixing method with a simple configuration of the energy supply unit. The low cost of initial installation and compact installation in tight spaces.

And with the above-described cooling unit and heating unit, the amount of water vapor contained in the exhaust air can be reduced and the minimum amount of water vapor required for generating white smoke can be effectively prevented.

In addition, while effectively preventing the generation of white smoke, by using the heat obtained by the cooling unit as part of the energy required to heat the exhaust air, it is possible to maximize the energy utilization efficiency and the maintenance cost is also very low.

In addition, when the initial temperature of the exhaust air is very high, the injection cooling unit for cooling the temperature of the exhaust air primarily by spraying low temperature water and the outdoor heat exchange means for further cooling the exhaust air passing through the cooling unit through the outside air. By providing it, the white smoke can be prevented more effectively.

In addition, the filter provided in such a way as to separate the space between the cooling unit and the heating unit is provided, thereby blocking the heat exchange between the cooling unit and the heating unit that does not pass through the energy supply unit, so that the cooling action and the heating action can be made independently and efficiently. By further cooling action by the heat exchange means to remove the fine water droplets generated in the exhaust air together with the foreign matter contained in the exhaust air, it is possible to more effectively prevent the generation of white smoke.

On the other hand, when the smoke prevention device of the present invention is installed in the cooling tower, as the exhaust air is cooled through the injection cooling unit, the cooling unit and the auxiliary cooling unit, since the water vapor contained in the exhaust air is condensed and dropped into the cooling water, In addition, the amount of cooling water flowing out through the discharged air can be greatly reduced, thereby reducing the air consumption required for cooling water replenishment work for maintaining a stable amount of cooling water above a predetermined reference level.

1 is a cross-sectional view schematically showing a conventional cooling tower,
2 is a cross-sectional view schematically showing a cooling tower equipped with a smoke generation prevention device according to a preferred embodiment of the present invention;
Figure 3 is a cross-sectional view for explaining the operating state of the cooling tower equipped with a smoke generation prevention device according to an embodiment of the present invention,
4 is an air chart for explaining the change of state of the exhaust air by the apparatus for preventing smoke generation according to the preferred embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains (hereinafter, referred to as a person skilled in the art) may easily perform the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The apparatus for preventing white smoke generation according to the present invention is installed in a cooling tower, a wet dust collecting facility, an industrial drying facility, and a boiler, a generator, an incineration facility, and cools the exhaust air so that water vapor is removed from the exhaust air including a large amount of steam. By heating the air while cooling the air, the minimum amount of water vapor required for the generation of white smoke is increased so as to prevent the generation of white smoke by heating the exhaust air.

Hereinafter, with reference to the accompanying Figure 2, it will be described in detail the configuration and effect of the cooling tower equipped with a smoke generation prevention device according to a preferred embodiment of the present invention.

In describing the apparatus for preventing smoke generation according to the preferred embodiment of the present invention, the cooling tower having the same has been described, but the installation facility is not limited to the cooling tower, and each component of the apparatus for preventing smoke generation is intended for installation. It is noted that various modifications can be made depending on the type of facility.

Cooling tower equipped with a smoke generation prevention device according to a preferred embodiment of the present invention, comprises a body 100, the cooling water nozzle 200, the fan 300, the filler 400 and the smoke generation prevention device 500. .

The body 100 is provided in the form of a hollow cylindrical or rectangular parallelepiped to form the outer shape of the cooling tower, the lower side is formed with an inlet 110 through which the outside air is introduced, the upper surface of the outer air after cooling the cooling water A discharge port 120 through which discharge air is discharged is formed.

The lower portion of the body 100 is provided in the form of a water tank so that the coolant sprayed from the coolant nozzle 200 can be collected by dropping the coolant, the coolant pipe 210 is connected to the lower surface of the body 100 And it is provided to be sent back to the indoor unit 230 by the cooling water pump 220 installed in the cooling water pipe (210).

After being sent back to the indoor unit 230 and used for cooling, the coolant, which has been heated, is injected into the body 100 through the coolant pipe 210 connected to the coolant nozzle 200 and cooled.

The cooling water nozzle 200 is used for cooling in the indoor unit 230, and then sprayed the coolant heated to the filler 400 to be cooled by contact with the outside air in the filler 400.

The fan 300 provides power to allow outside air to flow through the inlet 110 and exhaust air to be discharged to the outlet 120.

The filler 400 is located between the coolant nozzle 200 and the suction port 110 so that the coolant injected through the coolant nozzle 200 passes downward, and the outside air introduced through the suction port 110 passes upward. By facilitating heat transfer from the coolant to the outside air, the cooling action of the coolant by the outside air can be effectively performed.

In more detail, the filler 400 disperses the coolant injected from the coolant nozzle 200 to delay the drop and maximizes the contact surface with the outside air by forming the water film wide by the coolant so that the coolant of high temperature Make it easy to release heat to the outside air.

The smoke generation prevention device 500 causes the outside air introduced into the suction port 110 to dry the discharge air, which is air that is hot and humidified by contact with the cooling water in the filler 400, so that the discharge air is discharged through the discharge port 120. This prevents white smoke from coming into contact with cold air.

To this end, as shown in FIG. 2, the apparatus 100 for preventing smoke generation may include a cooling unit 510, a heating unit 520, an energy supply unit 530, a filter unit 540, and an outside air heat exchange unit 550. And spray cooling unit 560.

The cooling unit 510 is installed above the low temperature water nozzle 561 of the spray cooling unit 560, which will be described later, and subsequently serves to cool the exhaust air primarily cooled by the spray cooling unit 560.

The cooling unit 510 includes a large amount of water vapor to cool the exhaust air near the saturation state, thereby condensing and removing the water vapor contained in the exhaust air. The condensed water vapor falls back into liquid coolant.

The cooling unit 510 is configured to maximize the contact area between the discharge air and the refrigerant pipe 531 to promote heat transfer between the refrigerant circulating in the refrigerant pipe 531 of the energy supply unit 530 and the discharge air. Various known techniques known to those skilled in the art may be applied as a structure capable of maximizing such a contact area, which is provided and similarly implemented as a heat dissipation wing.

The heating unit 520 is installed inside the upper end of the body 100 to discharge air passing through the spray cooling unit 560, the cooling unit 510, the auxiliary cooling unit 551 and the filter unit 540 in order. By heating and drying, by increasing the temperature of the exhaust air to increase the minimum amount of water vapor necessary for the generation of white smoke serves to prevent the generation of white smoke.

In this case, the heating unit 520 heats the discharge air discharged to the discharge port 120 by the heat of the refrigerant from the discharge air in the cooling unit 510 and the energy supplied from the energy supply unit 530.

The heating unit 520 is in contact with the discharge air and the refrigerant pipe 531 to promote heat transfer between the refrigerant circulating in the refrigerant pipe 531 of the energy supply unit 530 and the discharge air, similar to the cooling unit 510. It is provided with a structure capable of maximizing the area, and as described above, various known techniques known to those skilled in the art can be applied as a structure capable of maximizing such contact areas.

The energy supply unit 530 cools the exhaust air through heat exchange with the exhaust air in the cooling unit 510, and additionally supplies energy to the refrigerant deprived of heat, and delivers the refrigerant to the heating unit 520. .

To this end, the energy supply unit 530 is provided as a closed circuit tube passing through the cooling unit 510 and the heating unit 520 in the refrigerant pipe 531 and the cooling unit 510 filled with a refrigerant therein. And a refrigerant compressor 532 which compresses the refrigerant obtained from the exhaust air and transfers the refrigerant to the heating unit 520.

The refrigerant compressor 532 compresses the refrigerant deprived of heat from the exhaust air in the cooling unit 510 to a high temperature and high pressure and transfers the refrigerant to the heating unit 520, thereby allowing the refrigerant to circulate through the refrigerant pipe 531, and heating. In section 520, the exhaust air can be heated from the refrigerant by obtaining heat.

That is, the heat obtained from the cooling unit 510 to prevent the occurrence of smoke by the energy supply unit 530 is used as part of the energy required to heat the exhaust air to prevent the occurrence of smoke in the heating unit 520 again. Therefore, energy efficiency can be maximized.

In a preferred embodiment of the present invention, the energy supply unit 530 is provided in a simple form including a refrigerant pipe 531 and a refrigerant compressor 532 may be installed compactly in a narrow space. However, the implementation form of the energy supply unit 530 is not limited thereto, and may be implemented in various forms including a heat pump generally referred to those skilled in the art.

In addition, the energy supply unit 530 may be implemented to use heat obtained by additionally cooling the coolant collected in the lower portion of the body 100 without using the heat obtained from the cooling unit 510.

Meanwhile, in the refrigerant pipe 531 of the energy supply unit 530, a section in which the refrigerant passing through the heating unit 520 is transferred to the cooling unit 510 may be implemented in the form of a capillary tube or an expansion tube. In this case, as the refrigerant is lowered in pressure, the cooling unit 510 can more efficiently take heat from the exhaust air.

The filter unit 540 is installed to intersect between the cooling unit 510 and the heating unit 520 to distinguish the space where the cooling unit 510 and the heating unit 520 are installed, thereby not by the energy supply unit 530. The heat exchange between the cooling unit 510 and the heating unit 520 is blocked. Accordingly, the cooling action of the cooling unit 510 and the heating action of the heating unit 520 can be made independently and efficiently.

In addition, the filter unit 540 is provided as a kind of porous filter or mesh filter to remove foreign substances such as water droplets and dust included in the exhaust air.

In particular, the filter unit 540 is provided above the cooling unit 510 and the sub-cooling unit 551 of the external air heat exchange unit 550, which will be described later, and the discharge air is provided in the cooling unit 510 and the sub-cooling unit 551. As a part of the water vapor contained in the exhaust air condenses in the form of fine droplets, it serves to filter the droplets.

Due to the cooling role of the cooling unit 510, the sub-cooling unit 551, and the filter unit 540 and the water droplet filtering role, the amount of water vapor contained in the discharged air passing through the filter unit 540 is further reduced.

The outside air heat exchange means 550 further serves to cool the exhaust air between the cooling unit 510 and the filter unit 540 by using the outside air. To this end, the external air heat exchange means 550 includes an auxiliary cooling unit 551, an external engine 552, and a driving fan 553.

The auxiliary cooling unit 551 has an internal structure through which outside air can be introduced and passed, and externally, the auxiliary cooling unit 551 has a contact area with discharge air passing through the cooling unit 510 similarly to the cooling unit 510 described above. It is provided with a structure that can be maximized.

That is, as shown in FIG. 2, outside air is introduced through the outside air inlet 551-1 communicating with the inside of the auxiliary cooling unit 551, and the outside air is discharged when the outside air passes through the auxiliary cooling unit 551. The heat is taken away from it, further cooling the exhaust air.

Accordingly, the exhaust air is further cooled while passing through the auxiliary cooling unit 551 to condense and remove water vapor contained in the exhaust air.

The external pipe 552 communicates with the auxiliary cooling unit 551 and is provided with a driving fan 553, and discharges outside air that has passed through the auxiliary cooling unit 551 to the outside.

The driving fan 553 provides power so that outside air flows into the outside air inlet 551-1 and passes through the auxiliary cooling unit 551 to be discharged through the outside engine 552.

In the preferred embodiment of the present invention, the outside air heat exchange means 550 is implemented to be indirectly contacted with the exhaust air and the outside air through the auxiliary cooling unit 551, the embodiment is not limited thereto.

For example, the outside air heat exchange means 550 is provided in the form of an inlet formed in the body 100 between the filter unit 540 and the cooling unit 510 so that the outside air that is cold by the power of the fan 300 is inlet. It may be implemented to be introduced into the direct contact with and mixed with the exhaust air. In this case, the outside air heat exchange means 550 serves to further cool the discharge air by removing cold water by mixing cold air into the discharge air passing through the cooling unit 510 to dilute the discharge air.

That is, when the outside air filled in the exhaust air is mixed by the outside air heat exchange means 550, water vapor contained in the exhaust air is condensed and removed, and the exhaust air is diluted while being mixed with the dry outside air to lower its relative humidity.

The spray cooling unit 560 primarily serves to cool the hot and humid discharge air that has passed through the filler 400 first by injecting cold water from the upper side of the filler 400. To this end, the spray cooling unit 560 comprises a low temperature water nozzle 561, a low temperature water pipe 562 and a low temperature water pump 563.

As shown in FIG. 2, the low temperature water nozzle 561 is installed above the filler 400 to inject low temperature water into the discharged air. In a preferred embodiment of the present invention, the cold water is used to further cool the cooling water collected in the lower portion of the body (100).

Therefore, the low temperature water pipe 562 is provided to connect the lower portion of the body 100 and the low temperature water nozzle 561, and a plurality of heat dissipation fins 562-1 on the part of the cooling water passing through the low temperature water pipe 562 is further cooled. It is installed, the cold water so coolant is further supplied to the cold water nozzle (561). The low temperature water pump 563 is installed in the low temperature water pipe 562 to provide power for supplying the low temperature water to the low temperature water nozzle 561.

In the preferred embodiment of the present invention, the spray cooling unit 560 is implemented to be used as low temperature water by further cooling the cooling water, but the implementation manner is not limited thereto. For example, a separate low temperature water tank may be provided to implement the low temperature water contained in the low temperature water tank.

Further, even when the cooling water is additionally cooled to utilize the low temperature water, the method of additionally cooling the cooling water is not limited to the method using the heat dissipation fins 562-1.

3 and 4, the operation and use state of the smoke generation prevention device according to a preferred embodiment of the present invention will be described in detail.

First, looking at the flow of the cooling water (CW), the cooling water (CW) that is used to cool the room in the indoor unit 230 and then the high temperature cooling water (CW) is supplied to the cooling water nozzle 200 through the cooling water pipe 210 to the cooling water nozzle 200 Through) is injected into the filler 400 in the body 100 inside.

The sprayed cooling water CW passes through the filler 400 downwardly and is dispersed by the filler 400 and delayed by the drop, and a wide water film is formed in the filler 400, thereby being introduced through the suction port 110. Contact with the outside air is maximized.

The cooling water CW is cooled while losing heat to the outside air through contact with the outside air, and the cooled cooling water CW falls from the filler 400 and is collected in the lower portion of the body 100.

As such, the coolant collected in the lower portion of the body 100 is supplied to the indoor unit 230 by the coolant pipe 210 and the coolant pump 220 to be used to cool the room.

Meanwhile, some of the cooling water CW collected in the lower portion of the body 100 is further cooled through the low temperature water pipe 562 and the low temperature water pump 563 and supplied to the low temperature water nozzle 561 to fill the filling material with low temperature water ( It primarily serves to cool the hot and humid exhaust air passed through 400).

Next, the outside air introduced through the inlet 110 of the lower part of the body 100 passes through the filler 400 to take the heat of the cooling water CW to cool the cooling water CW, and to discharge the flow of discharge air, which is high temperature and humid air. Take a look.

Thus, the exhaust air immediately after passing through the filler 400 will be described below on the assumption that the air temperature is 52 ° C. and the relative humidity is 100% saturated at P 0 in the air diagram shown in FIG. .

First, the exhaust air immediately after passing through the filler 400 is primarily cooled due to the cold water injected from the cold water nozzle 561 on the upper side of the filler 400.

When the discharged air undergoes such primary cooling, the temperature is lowered to about 45 ° C. to the state of P 1 shown in FIG. 4. The state of P 1 is moved along the saturated water vapor curve (C1) so that the relative humidity is still 100%, but since the amount of saturated water vapor at 52 ° C. is less than the amount of saturated water vapor at 45 ° C., the water vapor is removed by condensation by the difference.

That is, some of the water vapor contained in the exhaust air during the primary cooling process is removed while condensation, the absolute humidity of the exhaust air is reduced.

Thereafter, the discharged air passing through the injection cooling unit 560 and undergoing the first cooling process is cooled by taking heat into the refrigerant inside the refrigerant pipe 531 of the energy supply unit 530 while passing through the cooling unit 510.

When the discharged air is subjected to the secondary cooling process by the cooling unit 510 in this way, the temperature is lowered to about 35 ° C., which leads to the state of P 2 shown in FIG. 4. The state of P 2 is moved along the saturated water vapor curve (C1) so that the relative humidity is still 100%, but since the amount of saturated water vapor at 35 ° C. is less than the amount of saturated water vapor at 45 ° C., the water vapor is removed by condensation by the difference.

That is, through this secondary cooling process, a part of the water vapor contained in the exhaust air is additionally condensed and removed, thereby reducing the absolute humidity of the exhaust air.

Then, the exhaust air passing through the cooling unit 510 and undergoing the second cooling process passes through the auxiliary cooling unit 551 of the outside air heat exchange unit 550 provided on the upper side of the cooling unit 510. 551-1) loses heat to the cold outside air flowing into and cools it tertiarily.

When the discharged air is subjected to the third cooling process by the auxiliary cooling unit 551 in this way, the temperature is lowered to about 27 ° C., thereby bringing the state of P 3 shown in FIG. 4. The state of P 3 is moved along the saturated water vapor curve (C1) so that the relative humidity is still 100%, but since the amount of saturated water vapor at 27 ° C. is less than the amount of saturated water vapor at 35 ° C., water vapor is removed by condensation by the difference.

That is, through the third cooling process, some of the water vapor contained in the exhaust air is condensed and removed, thereby reducing the absolute humidity of the exhaust air.

Next, the discharged air passing through the sub-cooling unit 551 and undergoing the third cooling process passes through the filter unit 540 provided above the sub-cooling unit 551. As the exhaust air passes through the filter unit 540, water vapor condenses in the first, second, and third cooling processes, and fine water droplets formed are filtered and removed from the filter unit 540. The fine water droplets thus filtered are dropped from the filter unit 540 and recovered as the cooling water CW.

In addition, the foreign matter contained in the exhaust air, such as dust generated from the filler 400, etc. are also filtered by the filter unit 540 and removed.

Thereafter, the exhaust air passing through the filter unit 540 is heated by the heating unit 520, and the temperature thereof is raised so that the minimum amount of water vapor required to generate white smoke is increased. At this time, the heating unit 520 heats the exhaust air by the heat additionally taken from the exhaust air passing through the cooling unit 510 and the energy additionally supplied to the refrigerant through the refrigerant compressor 532.

In detail, the refrigerant of the refrigerant pipe 531 which takes heat from the discharged air passing through the cooling unit 510 is additionally transferred by the refrigerant compressor 532 while being transferred to the heating unit 520 along the refrigerant pipe 531. It is energized and compressed into a gaseous state of high temperature and high pressure. The refrigerant is liquefied by releasing heat while passing through the heating unit 520, and the exhaust air passing through the heating unit 520 is heated by receiving heat from the refrigerant.

As the refrigerant liquefied by passing heat through the heating unit 520 is transferred to the cooling unit 510 along the refrigerant pipe 531, the pressure is lowered. In the cooling unit 510, the refrigerant is liquefied at low temperature and low pressure. The vaporized gas is taken out of the exhaust air while being evaporated to cool the exhaust air as described above.

On the other hand, when the discharged air is subjected to the heating process by the heating unit 520 in this way, the temperature is increased to about 41 ℃ to the state of P 4 shown in FIG. The state of P 4 is a state located below the white limit line C2 because the temperature of the exhaust air is greatly increased and the relative humidity is significantly lowered without changing the absolute humidity.

Here, the white lead line C2 shown in FIG. 4 is a line indicating the limit of the generation of white lead on average when the exhaust air having a corresponding temperature is in contact with the cold outside air. In FIG. If it is located above C2), white smoke is generated, and if the state of the discharged air is located below the white smoke limit line C2, it means that it does not occur.

That is, in a preferred embodiment of the present invention, the exhaust air heated and passed through the heating unit 520 is discharged through the discharge port 120, the discharge air of the P 4 located below the white lead line (C2) Since the state is discharged through the outlet 120, even if it comes in contact with the cold outside of the smoke does not occur.

In describing the preferred embodiment of the present invention, it is noted that the state display of the exhaust air of FIG. 4 is described by way of example.

As described above, according to the apparatus for preventing white smoke generation according to the present invention, the refrigerant cools the exhaust air cooled by the cooling unit 510 and the cooling unit 510 for cooling the high temperature and high humidity exhaust air to remove water vapor. By providing a heating unit 520 for heating and drying by heating the energy obtained from the unit 510 and the energy supplied by the energy supply unit 530, the amount of water vapor contained in the exhaust air is reduced and the minimum amount of water vapor required to generate white smoke is increased. While the generation can be effectively prevented, the maintenance cost is low because the exhaust air is heated using the heat obtained by the cooling unit 510 as part of the energy required to heat the exhaust air.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical spirit of the present invention, and such modifications and variations belong to the appended claims. will be.

Description of the Related Art [0002]
100: body 110: suction port
120: outlet 200: cooling water nozzle
210: cooling water pipe 220: cooling water pump
230: indoor unit 300: fan
400: filling material 500: smoke generation prevention device
510: cooling unit 520: heating unit
530: energy supply unit 531: refrigerant pipe
532: refrigerant compressor 540: filter unit
550: outside heat exchange means 551: auxiliary cooling unit
551-1: external inlet 552: external organ
553: drive fan 560: spray cooling unit
561: low temperature water nozzle 562: low temperature water pipe
562-1: heat radiating fins 563: low temperature water pump
CW: Cooling water C1: Saturated water vapor curve
C2: White Limit Line

Claims (7)

  1. A cooling unit that cools the exhaust air including steam, thereby condensing and removing some of the steam;
    A heating unit for heating and drying the discharged air cooled by the cooling unit; And
    And an energy supply unit configured to supply heat to the heating unit by further supplying energy to the heated refrigerant by obtaining heat from the discharge air in the cooling unit.
    The heating unit is a smoke generation prevention device, characterized in that for heating the exhaust air by the heat obtained from the cooling unit and the energy additionally supplied from the energy supply unit.
  2. The method of claim 1,
    The energy supply unit,
    A refrigerant pipe provided in a closed circuit form passing through the cooling unit and the heating unit and filled with a refrigerant therein; And
    A refrigerant compressor for compressing the refrigerant obtained from the exhaust air by the cooling unit at high temperature and high pressure and transferring the refrigerant to the heating unit;
    White smoke generation prevention device comprising a.
  3. The method of claim 1,
    A filter unit installed to intersect the cooling unit and the heating unit to separate a space in which the cooling unit and the heating unit are installed, and to remove foreign substances and water droplets included in the exhaust air;
    White smoke generation prevention device further comprising a.
  4. The method of claim 1,
    Outside air heat exchange means for cooling the exhaust air passing through the cooling unit through heat exchange or contact with outside air;
    White smoke generation prevention device further comprising a.
  5. The method of claim 4, wherein
    The outdoor heat exchange means,
    An auxiliary cooling unit having an internal structure through which outside air can be introduced, and provided in contact with the discharged air cooled by the cooling unit; And
    A driving fan for introducing and passing outside air into the auxiliary cooling unit;
    White smoke generation prevention device comprising a.
  6. The method of claim 1,
    An injection cooling unit configured to cool primarily by injecting low temperature water into the exhaust air before being cooled by the cooling unit, including a low temperature water nozzle, a low temperature water pipe, and a low temperature water pump;
    White smoke generation prevention device further comprising a.
  7. It is provided in the form of an empty case, the inlet is formed in the lower portion, the outlet formed in the upper body;
    A coolant nozzle provided at a center of the body to spray coolant;
    A fan providing power so that outside air flows through the suction port and is discharged to the discharge port;
    A filling material installed between the cooling water nozzle and the suction port so that the cooling water and the outside air pass to face each other, and promoting heat transfer from the cooling water to the outside air; And
    A cooling unit for condensing and removing a part of the steam by cooling the exhaust air including steam, a heating unit for heating and drying the exhaust air cooled by the cooling unit, and heat from the exhaust air in the cooling unit. An apparatus for preventing white smoke generation including an energy supply unit configured to supply additional energy to the heated refrigerant and transfer the energy to the heating unit;
    Cooling tower comprising a.
KR1020110051266A 2010-10-29 2011-05-30 Apparatus for preventing white plume and cooling tower with the same KR101197283B1 (en)

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KR101293915B1 (en) * 2012-07-17 2013-08-16 주식회사 성지테크 Cooling tower
KR101462153B1 (en) * 2014-02-25 2014-11-14 주식회사 안성에이치이산업 Preventing white plume of cooling tower using plasma and air heat source
CN104197742A (en) * 2014-09-11 2014-12-10 诸文伟 High-efficiency closed cooling tower
KR101507772B1 (en) * 2014-02-20 2015-04-07 경기대학교 산학협력단 Cooling tower having humidity filter
KR20150100218A (en) * 2014-02-25 2015-09-02 신성하이테크 주식회사 Preventing white plume of cooling tower using air heat source
CN105910458A (en) * 2016-05-20 2016-08-31 大连亿斯德环境科技有限公司 Three-dimensional efficient evaporating and heat exchanging system
US20180180359A1 (en) * 2015-06-02 2018-06-28 Kf Co., Ltd. White smoke gas reduction device
KR101878562B1 (en) * 2016-10-14 2018-07-13 한국에너지기술연구원 plume reducing cooling tower using membrane, and heat exchanging system having the cooling tower
KR20180104254A (en) * 2017-03-10 2018-09-20 경기대학교 산학협력단 Cooling Tower Reducing Generation of White Plume
KR101998089B1 (en) * 2018-05-31 2019-09-27 (주) 케이에스엔 Condenser Type White Smoke Reduction Cooling Tower Including an Auxiliary Condensing Mean
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Publication number Priority date Publication date Assignee Title
KR101293915B1 (en) * 2012-07-17 2013-08-16 주식회사 성지테크 Cooling tower
KR101507772B1 (en) * 2014-02-20 2015-04-07 경기대학교 산학협력단 Cooling tower having humidity filter
KR101462153B1 (en) * 2014-02-25 2014-11-14 주식회사 안성에이치이산업 Preventing white plume of cooling tower using plasma and air heat source
KR20150100218A (en) * 2014-02-25 2015-09-02 신성하이테크 주식회사 Preventing white plume of cooling tower using air heat source
CN104197742A (en) * 2014-09-11 2014-12-10 诸文伟 High-efficiency closed cooling tower
US20180180359A1 (en) * 2015-06-02 2018-06-28 Kf Co., Ltd. White smoke gas reduction device
CN105910458A (en) * 2016-05-20 2016-08-31 大连亿斯德环境科技有限公司 Three-dimensional efficient evaporating and heat exchanging system
CN105910458B (en) * 2016-05-20 2018-02-09 大连亿斯德环境科技有限公司 Three dimension high efficiency evaporation and heat-exchange system
KR101878562B1 (en) * 2016-10-14 2018-07-13 한국에너지기술연구원 plume reducing cooling tower using membrane, and heat exchanging system having the cooling tower
KR20180104254A (en) * 2017-03-10 2018-09-20 경기대학교 산학협력단 Cooling Tower Reducing Generation of White Plume
KR101998089B1 (en) * 2018-05-31 2019-09-27 (주) 케이에스엔 Condenser Type White Smoke Reduction Cooling Tower Including an Auxiliary Condensing Mean
KR102041580B1 (en) * 2018-12-07 2019-11-06 최용희 Metal smelting apparatus comprising impinger

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