KR101757335B1 - Vacuum type cooling tower without fan - Google Patents

Abstract

Casing; A first airtight container disposed in the casing, the first airtight container being generated and stored; A pump unit disposed outside the first hermetically sealed container for sucking and transporting the first inside air; A heat exchange unit installed in the pump unit, wherein heat exchange water is exchanged between the room-temperature replenishing water and the first inside air to form the temperature-increasing replenishing water and the condensing agent 1 internal air; And a second container which is disposed in the casing and into which the condensing agent 1 internal air flows upward and in which the temperature-heated replenished water is introduced and stored, wherein the first interior includes cooling water and the temperature Provides a quiet, airless cooling tower that is generated by the heat exchange of the supply water.

Description

VACUUM TYPE COOLING TOWER WITHOUT FAN}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling tower, and more particularly, to a vacuum cooling tower capable of being installed and operated in an underground space such as a basement, a bunker and the like.

In the air conditioning equipment such as refrigeration and refrigeration equipment, the cooling tower discharges the waste heat of the cooling water whose temperature has risen due to the heat exchange with the refrigerant of the condenser to the atmosphere. For this purpose, the cooling tower is provided with a heat exchanger, a blower, and the like. Here, the cooling tower forcibly blows the outside air to the heat exchanger side through the blower to improve the cooling efficiency of the cooling water.

However, when a cooling tower is to be installed in an enclosed space such as an underground space, for example, a bunker, a basement, etc., there is a problem that outside air can not flow smoothly. Also, when the blower is used, the amount of power used increases accordingly.

Also, when latent heat of evaporation is used for the heat exchange of cooling water in the underground space, when the high temperature and high humidity steam that is evaporated is discharged to the atmosphere, the moisture in the high temperature and high humidity steam is condensed to generate white smoke.

The white smoke is pure water vapor and does not correspond to the air pollution source, but it is easy to be mistaken for pollution or fire in the form of smoke, and it causes civil complaints because of damaging the aesthetics of the surroundings. In addition, when the weather conditions in the winter season are low, there is a problem of freezing the surface of facilities around the cooling tower as well as surrounding facilities.

Korean Patent No. 10-1082792 Korea Public Utility Model No. 20-1998-0009170 Japanese Patent No. 02807689 Korean Patent No. 10-1456446

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a cooling tower which can be installed in an underground space, for example, a bunker,

It is also intended to provide a mechanical structure that can replace a pump for transferring vaporized water vapor. Further, even if the blower is removed, a cooling efficiency equal to that of the conventional cooling tower is desired.

Also, in order to improve the cooling efficiency, it is possible to completely discharge the hot and humid water vapor generated as a result of water evaporation, and to prevent the white smoke from being generated in the discharge process.

The first embodiment of the present invention, in order to solve the above-described problems, A first airtight container disposed in the casing, the first airtight container being generated and stored; A pump unit disposed outside the first hermetically sealed container for sucking and transporting the first inside air; A heat exchange unit installed in the pump unit, wherein heat exchange water is exchanged between the room-temperature replenishing water and the first inside air to form the temperature-increasing replenishing water and the condensing agent 1 internal air; And a second container which is disposed in the casing and into which the condensing agent 1 internal air flows upward and in which the temperature-heated replenished water is introduced and stored, wherein the first interior includes cooling water and the temperature Provides a quiet, airless cooling tower that is generated by the heat exchange of the supply water.

The second embodiment includes a casing; A first airtight container disposed in the casing, the first airtight container being generated and stored; A pump unit disposed outside the first hermetically sealed container for sucking and transporting the first inside air; A heat exchange unit installed in the pump unit, wherein heat exchange water is exchanged between the room-temperature replenishing water and the first inside air to form the temperature-increasing replenishing water and the condensing agent 1 internal air; And a second container which is disposed in the casing and in which a second inside air is generated and into which the inside air of the condensing agent is introduced upwardly and the warm air inflow water is inflowly stored downwardly, 1 < / RTI > of the temperature-elevated water replenished in the hermetically sealed container, wherein the cooling water and the warm-up-heated water stored in the second vessel are stored in the second container Which is generated by the first-stage heat exchange, which flows into the upper side of the cooling tower.

Wherein the pump unit comprises: a nozzle unit for injecting the temperature-elevated water at a high speed; An end face reduced portion disposed in front of the nozzle portion; And a suction unit that sucks the first inside air and is disposed between the nozzle unit and the end face reduction unit to form a negative pressure.

The heat exchanging unit may be formed in a shape to surround the suction unit at an outer periphery of the suction unit so that an empty space is formed in the heat exchanging unit. The heat exchanging unit may be formed with an inlet hole through which the room- have.

The first closed container may further include a pressure sensor for sensing the non-condensed gas included in the temperature-increasing-water.

An extraction pipe through which the non-condensed gas is extracted is connected to the first closed container, and a liquid separator for separating steam contained in the non-condensed gas may be formed in the extraction pipe.

A first replenishing water tank in which the heat-exchanged replenishing water is stored; And a heat exchange coil in which the cooling water flowing in and out is heat-exchanged.

Wherein the pump unit comprises: a nozzle unit for injecting the temperature-elevated water at a high speed; An end face reduced portion disposed in front of the nozzle portion; And a suction unit disposed between the nozzle unit and the end face reducing unit to suck the first inside air and form a negative pressure, wherein the heat exchange unit includes a suction port, The heat exchange unit may be formed with an inlet hole through which the room-temperature-replenishing water flows and an outlet hole through which the temperature-increasing-water is discharged.

The second container is a second supply water tank in which the temperature-increasing supply water to be sprayed is stored; A replenishing water pipe for supplying the temperature-elevated replenishing water to the second replenishing water tank; And a heat exchange coil in which the cooling water flowing in and out is heat-exchanged.

An outlet for discharging the first inside air is formed at an upper end of the first hermetically sealed container, an eliminator is installed at a front of the discharging opening, and an outlet for discharging the first inside air is formed at an upper end of the second container And a vent pipe for discharging the first inside air to the outside of the casing may be connected to the outlet.

As described above, according to the present invention, various effects including the following can be expected. However, the present invention does not necessarily achieve the following effects.

The air-cooled cooling tower can be easily installed in an underground space where the outside air can not be sucked smoothly. That is, the cooling tower can be installed even if there is no separate outside air inlet or outlet for the underground bunker, or a duct through which the outside air can be moved.

In addition, the vacuumless cooling tower can replace the pump by allowing the evaporated supply water to be sucked into the suction space where the negative pressure is formed, and as a result, the driving power of the pump can be reduced. At this time, if the replenished water in the steam state is exchanged with the replenishing water flowing in the normal temperature state, the condensed water can be cooled to improve the cooling ability. In addition, the heat exchange efficiency can be improved by allowing the primary heat exchange of the cooling water to be performed in the second container additionally installed to replace the pump.

In addition, when the water to be evaporated is discharged to the atmosphere, the absolute humidity of air discharged in a gaseous state in which white glare is likely to occur is reduced according to atmospheric conditions to prevent the occurrence of white smoke. The above embodiments of the present invention can achieve a cooling efficiency equivalent to that of the conventional cooling tower even when the blower is removed.

Also, the non-condensing gas contained in the replenishing water is detected and extracted to the outside of the closed container, so that the cooling ability can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a vacuum cooling tower according to a first embodiment of the present invention; FIG.
Figure 2 is a schematic cross-sectional view of the pump unit of Figure 1;
3 is a schematic view of a vacuum cooling tower according to a second embodiment;

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment]

FIG. 1 is a schematic view of a vacuum type airless cooling tower according to a first embodiment of the present invention, and FIG. 2 is a schematic sectional view of a pump unit 40b of FIG.

Referring to Figs. 1 and 2, the vacuum cooling tower includes a casing 10, a first airtight container 20a disposed in the casing 10 in which a first airtight is generated and stored, A pump unit 40b disposed outside the first indoor unit 20a for sucking and conveying the first indoor unit, and a pump unit 40b installed in the pump unit 40b for exchanging heat between the room-temperature water and the first indoor unit, And a second container 20b disposed in the casing 10 in which the condensing agent 1 internal air flows upward and the temperature-increasing water is flown in and stored in the heat exchanging unit 50 and the casing 10, respectively. Here, the first inside air is generated by the heat exchange between the cooling water and the temperature-increasing water distributed in the first closed container 20a.

The vacuum airless cooling tower according to the first embodiment does not include a blower for forcedly blowing outside air. Accordingly, the casing 10 of the cooling tower does not need to have an inlet and an outlet through which outside air flows. In other words, the pure formal windless cooling tower does not use outside air at all during the cooling process. As a result, it is not necessary to install a duct or the like for guiding a separate outside air, and it is possible to install it in a deep space, for example, in a subterranean bunker or a basement.

The casing 10 is formed of a rigid metal or the like, and the overall shape may be changed depending on the shape of the underground space and the like.

The first hermetically sealed container 20a is disposed in the casing 10, and the cooling water is cooled by heat exchange between the temperature-elevated water and the cooling water. At the same time, water vapor generated by evaporation of the temperature- Sealed to avoid leakage.

In addition, a first replenishment water tank 21a is formed below the first hermetically sealed container 20a, in which the temperature-raising replenishing water sprayed is dropped and stored. The first closed container 20a is provided with a heat exchange coil 23 through which cooling water is heat-exchanged.

The heat exchange coil 23 is a part where heat exchange is performed between the temperature-elevated water and the cooling water, through which the cooling water is cooled by releasing the heat contained therein. That is, the cooling water flows into the first closed container 20a through one end of the heat exchange coil 23 and flows out of the first closed container 20a through the other end of the heat exchange coil 23 after heat exchange.

On the other hand, a spray unit 24 for spraying the temperature-increasing water toward the heat exchange coil 23 is provided on the upper side of the first closed container 20a. The spray unit 24 can inject the temperature-elevated water three-dimensionally through, for example, a vertical spray nozzle hole and a horizontal spray nozzle hole, which are formed in a plurality of pipes having a '?' Shape.

The temperature-elevated water is sprinkled for heat exchange with the cooling water and is stored in the first replenishing water tank 21a while being dropped on the circulating pipe connected between the first replenishing water tank 21a and the spray unit 24 And circulates through a cycle repeated by a vacuum pump 40a or the like.

Meanwhile, the upper end of the first hermetically sealed container 20a may be formed with a discharge port through which the first inside air is discharged due to the evaporation of the temperature-elevated water during the cooling process. An eliminator 25 may be installed in front of the discharge port. The eliminator 25 prevents the small droplets contained in the first inner stream discharged through the discharge port from being scattered together with the discharge port side, thereby minimizing consumption of the temperature-elevated water.

The first hermetically sealed container 20a may further be provided with a pressure sensor 12 for sensing non-condensable gas (air) contained in the temperature-elevated water. An extraction pipe 14 is connected to the first closed container 20a to extract the non-condensed gas. A liquid separator 70 is formed in the extraction pipe 14 to separate water vapor contained in the non-condensed gas.

The pressure sensor 12 senses the pressure formed in the first closed container 20a due to the non-condensed gas and extracts the non-condensed gas in the first closed container 20a when the pressure value is equal to or larger than a predetermined value And discharges it to the outside of the first closed container 20a. For this purpose, for example, a vacuum pump 40a or the like is disposed at the end of the extraction pipe 14. At this time, the pressure sensor 12 and the vacuum pump 40a are electrically connected to each other, and information on the pressure value measured by the pressure sensor 12 is provided to the vacuum pump 40a.

However, in the process of extraction, the first vessel may be mixed with the non-condensed gas. However, as described above, the first inside air is composed of water vapor, and when the air flows into the vacuum pump 40a through the extraction pipe 14, the failure of the vacuum pump 40a may occur. Therefore, in order to prevent this, the liquid separator 70 described above is disposed on the extraction pipe 14.

The liquid separator 70 is installed in the extraction pipe 14 between the first closed container 20a and the vacuum pump 40a and separates and stores the water vapor contained in the non-condensed gas, that is, the first inside air, Only the gas is sent to the vacuum pump 40a.

Further, a separation membrane 72 may be further disposed on the extraction pipe 14 between the liquid separator 70 and the vacuum pump 40a. The separator 72 serves to separate the water vapor, which may be partially contained in the non-condensed gas primarily separated in the liquid separator 70, from the liquid separator 70.

The pump unit 40b includes a nozzle unit 42 for injecting the temperature-elevated water at a high speed, an end face reducing unit 43 disposed in front of the nozzle unit 42, And a suction portion 44 disposed between the end surface reducing portion 43 and the end surface reducing portion 43 to form a negative pressure. Further, an auxiliary pump 40c for transferring the temperature-elevated water can be further disposed between the nozzle unit 42 and the second water supply tank 21b.

Here, the pump unit 40b is a kind of jet pump and operates on the same principle as the ejector. The temperature-elevated water sprayed at a high speed from the nozzle portion 42 flows into the end face reducing portion 43 side while sucking the first inside air stored in the first closed container 20a into the suction portion 44. As a result, a negative pressure is formed in the suction portion 44, and both fluids are mixed in the end face reducing portion 43. At this time, the kinetic energy possessed by the temperature increase replenishing water is converted into the kinetic energy of the entire mixed fluid, and this is converted to pressure while the moving speed is decreased in the cross-sectional enlargement unit 45 connected to the cross-

Therefore, the first vents can be easily moved from the first hermetically sealed container 20a to the second container 20b. As a result, the driving power consumed in the conventional pump can be reduced. Alternatively, for example, a vacuum pump or the like may be used as the pump unit 40b.

The pump unit 40b may be provided with a heat exchange unit 50. [ The heat exchange unit 50 allows heat exchange between the room-temperature-replenishing water introduced into the one end and the first inside air sucked into the pump unit 40b. The room-temperature replenishing water has a temperature of about 20 to 25 degrees.

Specifically, the heat exchange unit 50 is installed to surround the suction portion on the outer periphery of the suction portion so as to form a hollow space 54 therein. The heat exchange unit 50 is provided with an inflow hole 52 through which room- And an exhaust hole 53 through which water is replenished.

At this time, the heat exchange is performed by the heat conduction between the first inside air and the room-temperature replenishing water which are in contact with the inner surface and the outer surface of the suction portion, respectively. As a result, the first inside air in the water vapor state is heat-exchanged with the room-temperature replenishing water, and the temperature is lowered and condensed. This results in a decrease in the pressure of the first inside air, so that the cooling ability of the entire cooling tower can be improved.

The second container 20b has the same overall shape and the like as the first closed container 20a, and uses and functions in common. Specifically, the second container 20b is disposed in the casing 10, and the condensing agent 1 internal air flows upward, and the temperature-elevated water is inflow-stored.

A supply water pipe 22 is connected to one side of the lower end of the second vessel 20b so that the temperature increase water exchanged with the first inside water in the pump unit 40b is supplied to and stored in the second water supply tank 21b. Since the temperature-elevated water evaporates when it is heat-exchanged with the cooling water and gradually decreases, it is preferable to replenish the water through the water supply pipe (22).

An outlet port through which the first inside air is discharged is formed at the upper end of the second container 20b, and a pneumatic conveyance pipe 62 through which the first inside air is discharged to the outside of the casing 10 is connected to the outlet port. Further, a filter module (not shown) may be further installed in the communication agency 62. The filter module reduces the humidity of the first trap in the hot, humidified saturated air condition.

For example, if the air temperature is low, white smoke is liable to occur due to the first vent that is generated when the cold airless cooling tower is operated. In order to prevent this, the filter module is installed on the air handling unit 62 and absorbs the moisture of the first inside air discharged, thereby reducing the absolute humidity.

Such a filter module consists, for example, of a membrane member. The membrane member is in the form of a membrane (72) capable of separating substances of different particle size from the fluid. Such a membrane member is not limited in structure, material, principle of movement of a substance passing through a membrane member, and the like, and any substance can be used as long as selective movement of the substance can take place.

The membrane member may be formed in a cylindrical shape. The membrane members may be connected in series in the direction of movement of the first inside air on the air handling unit 62 so as to be disposed at least one. Specifically, the membrane member is laid in a horizontal direction so that the first inside air to be introduced can be moved along the air passage engine 62 while maintaining the same direction.

At this time, the membrane member can selectively absorb moisture in the first interior through the inner peripheral surface surrounding the cylindrical hollow interior. As a result, the state of the saturated air can be changed to dry air. Therefore, the evaporated water vapor, that is, the first inside air with high temperature and high humidity can be completely discharged into the atmosphere, and the absolute humidity of the discharged air can be reduced to prevent the occurrence of white smoke.

[Second Embodiment]

FIG. 3 is a schematic view of a vacuum cooling tower according to a second embodiment. FIG. Referring to Fig. 3, the vacuum cooling tower of the present invention includes a casing 10, a first closed vessel 20a disposed in the casing 10 in which a first vessel is generated and stored, And a pump unit 40b installed in the pump unit 40b for exchanging heat between the room-temperature replenishing water and the first inside air to form the temperature-increasing replenishing water and the condensing agent 1 inside, respectively And a second container 20b disposed in the heat exchange unit 50 and the casing 10 in which the second inside air is generated and the inside of the condenser 1 is introduced upward and inflow and outflow of the temperature- .

Here, the first inside air is generated by the second-stage heat exchange between the cooling water and the temperature-elevated water replenished in the first closed container 20a, and the second inside air is supplied to the inside of the second container 20b, Is generated by the first-stage heat exchange in which the water is introduced into the upper portion of the second container (20b) by the pump unit (40b) and sprinkled.

Compared to the first embodiment described above, the quasi-static-free air cooling tower according to the second embodiment differs in that two heat exchanges are performed between the supply water and the cooling water, the shape of the second vessel 20b, and the like . Therefore, detailed description of the same portions as those of the first embodiment will be omitted.

The cooling water flowing into the cooling tower is first subjected to the first stage heat exchange in the second vessel 20b. Then, the cooling water is transferred from the second container 20b to the first hermetically sealed container 20a, and the second-stage heat exchange is performed in the first hermetically sealed container 20a. That is, the primary heat exchange of the cooling water can be performed first in the second vessel 20b, and the overall heat exchange efficiency can be improved.

The pump unit 40b includes a nozzle unit 42 for injecting the temperature-elevated water at a high speed, an end face reducing unit 43 disposed in front of the nozzle unit 42, 42 and a suction portion 44 disposed between the end face reducing portion 43 and forming a negative pressure.

The heat exchange unit 50 is installed to surround the suction unit 44 on the outer periphery of the suction unit 44 so as to form a hollow space 54 therein and the heat exchange unit 50 is supplied with room- An inflow hole 52 and a discharge hole 53 through which the temperature-elevated water is discharged are formed, respectively.

On the other hand, the second container 20b includes a second replenishing water tank 21b for storing temperature-raising water to be sprayed, a replenishing water pipe 22 for supplying temperature-raising replenishing water to the second replenishing water tank 21b, And a heat exchange coil (23) through which heat is exchanged.

The communication agency 62 may further include the above-described filter module (not shown). The filter module reduces the humidity of the evaporated water vapor generated by evaporation in the first closed container 20a and the second container 20b, that is, the first inside air and the second inside air. This evaporated water vapor is in the state of high temperature, high humidity and saturated air and is discharged into the atmosphere to prevent the white smoke from being generated according to atmospheric conditions.

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 embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

10: Casing 20a: First closed container
20b: second container 21a: first supply water tank
21b: second supply water tank 12: pressure sensor
22: Supply water pipe 23: Heat exchange coil
24: Spray unit 25: Eliminator
40b: pump unit 42: nozzle unit
43: section reducing section 44: suction section
45: section enlarging section 50: heat exchange unit
52: Inflow hole 53: Discharge hole
62: circulatory organ 70: liquid separator
72: separator 14: extraction piping
80: Check valve 54:

Claims (10)

Casing;
A first airtight container disposed in the casing, the first airtight container being generated and stored;
A pump unit disposed outside the first hermetically sealed container for sucking and transporting the first inside air;
A heat exchange unit installed in the pump unit, wherein heat exchange water is exchanged between the room-temperature replenishing water and the first inside air to form the temperature-increasing replenishing water and the condensing agent 1 internal air; And
And a second container which is disposed in the casing and into which the condensing agent 1 internal air flows upwardly and in which the temperature-
Wherein the first inside air is generated by heat exchange between the cooling water and the heating-up-water replenishing water in the first closed vessel,
Wherein the pump unit comprises: a nozzle unit for injecting the temperature-elevated water at a high speed; An end face reduced portion disposed in front of the nozzle portion; And a suction portion which is sucked into the first inside air and is disposed between the nozzle portion and the end face reduction portion to form a negative pressure,
Wherein the heat exchange unit is installed to surround the suction unit at an outer periphery of the suction unit so that an empty space is formed therein, and the heat exchange unit is formed with an inlet hole into which the room-temperature-replenishing water flows and an outlet hole through which the temperature- Wherein the heat exchange of the heat exchange unit is performed by heat conduction between a first inner air contacting the inner surface of the suction portion and a room temperature water contacted with an outer surface of the suction portion.
Casing;
A first airtight container disposed in the casing, the first airtight container being generated and stored;
A pump unit disposed outside the first hermetically sealed container for sucking and transporting the first inside air;
A heat exchange unit installed in the pump unit, wherein heat exchange water is exchanged between the room-temperature replenishing water and the first inside air to form the temperature-increasing replenishing water and the condensing agent 1 internal air; And
And a second container which is disposed in the casing and in which a second inside air is generated and into which the condensing agent 1 internal air flows upwardly and in which the temperature-
Wherein the first inside air is generated by the second-stage heat exchange between the cooling water and the temperature-increasing replenishing water distributed in the first closed container, and the second inside air is cooled by the cooling water and the temperature- A first stage heat exchange which is performed by flowing into the upper side of the second vessel by the pump unit and sprinkling,
Wherein the pump unit comprises: a nozzle unit for injecting the temperature-elevated water at a high speed; An end face reduced portion disposed in front of the nozzle portion; And a suction portion which is sucked into the first inside air and is disposed between the nozzle portion and the end face reduction portion to form a negative pressure,
Wherein the heat exchange unit is installed to surround the suction unit at an outer periphery of the suction unit so that an empty space is formed therein, and the heat exchange unit is formed with an inlet hole into which the room-temperature-replenishing water flows and an outlet hole through which the temperature- Wherein the heat exchange of the heat exchange unit is performed by heat conduction between a first inner air contacting the inner surface of the suction portion and a room temperature water contacted with an outer surface of the suction portion.
delete delete 3. The method according to claim 1 or 2,
Wherein the first closed container is further provided with a pressure sensor for sensing the non-condensed gas included in the temperature-increasing-water.
6. The method of claim 5,
An extraction pipe through which the non-condensed gas is extracted is connected to the first closed container,
Wherein the extraction pipe is provided with a liquid separator for separating water vapor contained in the non-condensable gas.
3. The method according to claim 1 or 2,
A first replenishing water tank in which the heat-exchanged replenishing water is stored; And
And a heat exchange coil through which the cooling water flowing in and out is heat-exchanged.
delete 3. The method of claim 2,
The second container
A second supply water tank in which the temperature increase supply water to be sprinkled is stored;
A replenishing water pipe for supplying the temperature-elevated replenishing water to the second replenishing water tank; And
And a heat exchange coil through which the cooling water flowing in and out is heat-exchanged.
The method according to claim 1,
An outlet for discharging the first inside air is formed at an upper end of the first hermetically sealed container, an eliminator is installed at the front of the outlet,
Wherein a discharge port through which the first inside air is discharged is formed at an upper end of the second container and a vent pipe for discharging the first inside air is connected to the outlet of the casing.

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