KR20100117249A

KR20100117249A - Dehuminator

Info

Publication number: KR20100117249A
Application number: KR1020090035894A
Authority: KR
Inventors: 송상영
Original assignee: 송상영
Priority date: 2009-04-24
Filing date: 2009-04-24
Publication date: 2010-11-03

Abstract

PURPOSE: An eliminator-like device is provided to reduce the water cost since the scattered water is eliminated, the saturated vapor is changed to the water and the evaporation loss is decreased. CONSTITUTION: A cooling tower comprises an eliminator-like device. The saturated vapor, which is contained in the air discharged from the eliminator-like device, is cooled and condensed, the absolute humidity of the discharged air is decreased and thus the white smoke is eliminated. The surface temperature of the eliminator-like device is maintained to be below a dew point using the kinetic energy of the discharged air passing through a fan cylinder. The eliminator-like device has a hollowed double plate structure, an outdoor-air intake part is formed on the front end of the eliminator-like device and a discharge duct is installed on its rear end. The discharge part of the eliminator-like device is connected to the fan cylinder.

Description

The Hummer {DEHUMINATOR}

The present invention relates to a water-saving and smoke-free cooling tower that recovers and reuses water vapor and fugitive water generated during operation of a cooling tower as water without degrading the cooling performance of the cooling tower.

In the face of the fact that the demand for water is soaring due to the improvement of the standard of living and the continuous industrial development, the water shortage caused by the lack of water is becoming more severe, and the saving of water is more urgently needed. Is a reality regarded as pollution in our lives.

Generally, cooling towers are classified into cross flow type and counter flow type.

These cooling towers generally use direct fan ventilation (FAN) to directly contact the air of the intake (DRAFT) or indented (FORCED DRAFT) atmosphere with the coolant to remove the latent heat of the hot water and cool it. A large amount of steam and water droplets from forced ventilation are discharged into the atmosphere through the AXIAL FAN of the cooling tower. As a device for recovering lost water, a conventional general cooling tower is equipped with an ELIMINATOR, a recovery device, to recover the scattered water, but the vaporized water vapor is discharged into the atmosphere. Evaporation loss and white smoke were inevitable.

The white smoke prevention cooling tower is used as a special cooling tower to eliminate the white smoke phenomenon. Conventional white smoke prevention cooling tower (WET / DRY COOLING TOWER) is equipped with a cooling coil (DRY COOLING COIL) on the upper uses a method of cooling the water in the filler (FILLER) inside the cooling tower after the first cooling.

This smoke-free cooling tower is discharged by mixing heated air after the first cooling and saturated air heated and humidified after the second cooling in an AIR MIXER. In this case, a large amount of water vapor generated during the second cooling is discharged. Since the white smoke is in a state in which the relative humidity is lowered only by mixing with the heated air in the primary cooling coil, the white smoke due to water vapor only has no visual impairment and the absolute amount of moisture in the exhaust air is not reduced. The loss of water by evaporation of the cooling water could not be prevented.

In addition, since the cooling water must be transferred to the cooling coil in the upper part of the cooling tower, the power consumption of the pump (PUMP) is increased, the structure of the cooling tower is high, and the initial investment cost is increased due to the additional installation of the cooling coil and the air mixer.

The present invention is to prevent the loss of the cooling water due to the steam discharge generated during the heat exchange in the cooling tower of the conventional industrial and air conditioning cooling water cooling apparatus and to solve the problem of white smoke phenomenon.

The present invention uses the dehumidifier (patent application name: DEHUMINATOR) as a substitute for the conventional eliminator to prevent the above problems and the loss of water due to the evaporation and splashing of the cooling water, so that the steam and scattered water is simultaneously recovered as water It prevents loss and reduces the absolute humidity by cooling and condensing steam (humidity) in the exhaust air.

This also solves the problem of white smoke caused by exhaust steam.

In particular, since the cooling coils and air mixers installed in the conventional anti-smoke cooling tower are not installed, the size of the cooling tower can be miniaturized, and the power consumption of the cooling water circulation pump is reduced at the same time.

Since the dehumidifier is installed as described above;

1) Reduces evaporation loss by removing fugitive water and returning saturated steam evaporated to water, thereby reducing water cost.

2) Since the absolute humidity of the air discharged from the cooling tower is lowered, the effect of removing white smoke phenomenon,

3) to reduce the pump power consumed to transfer the cooling water to the cooling coil in the upper part of the conventional smoke-free cooling tower,

4) It can be smaller in size than the structure of the conventional white smoke prevention cooling tower.

The present invention has the same structure as the conventional cooling tower except that the dehumidifier (②) is used in place of the eliminator used in the conventional cooling tower.

The dehumidifier (②) of the present invention has an inlet duct (①) and a venturi effect of introducing external air (OA-1) to the front of the dehumimator (②) of a hollow double-plate structure as shown in FIG. It consists of a discharge duct (③) connected to the cylinder (④) for the generation of. (See Figure 2. )

The venturi effect is generated at the discharge duct (③) of the rear end of the dehumidifier (②) connected to the cylinder (④) by the air (EA) discharged at high speed (about 10 m / sec or more) from Inlet cold air (OA-1) is introduced;

Inlet duct (①) of the front end of the dehuminator (②)-Outer air (OA-2) which is discharged through the outlet duct (③) and the inflow air (OA-2) that flows into the louver (⑥ HOT WATER DISTRIBUTION) Saturated air (SA) generated after heat exchange with cooling water (HW) sprayed from PIPE is passed through dehumidifier (②) below dew point temperature before being discharged into the atmosphere by cooling fan (⑤). ) Steam is cooled, condensed and recovered as water. The inflow of external cold air (O.A-1) is exhausted. It is naturally induced by the venturi effect caused by the internal high flow rate, and does not require a separate power source.

`` The outside cold air (OA-1) introduced into the suction duct maintains the surface of the dehumidifier (②) below the dew point temperature, cools and condenses the water vapor discharged after the heat exchange with the cooling water, and heats itself. The venturi effect is further accelerated by forming an upward air flow due to the stack effect.

Therefore, the inflow of cold air (O.A-1) increases and the cooling condensation effect increases.

Figure 1.Dehumidifier detailed view

Figure 2. Cross-sectional and air flow diagrams of the counterflow / crossflow cooling tower employing the dehumidifier of the present invention.

Fig. 3 is a perspective view of the counterflow / crossflow cooling tower employing the dehumidifier of the present invention.

Claims

In the smoke prevention device of a cooling tower,

The dehumidifier cools and condenses the saturated steam contained in the exhaust air to lower the absolute humidity of the exhaust air, thereby removing the white smoke phenomenon of the cooling tower, and a cooling tower having a scattering removal function.

Means for directing the inflow of external air using the kinetic energy of the exhaust air passing through the cylinder to maintain the surface temperature of the dehumidifier below the dew point temperature;

The dehumidifier has a hollow double plate-like structure having an external air inlet at the front end and a discharge duct at the rear end and having a structure in which the discharge part is connected to the cylinder.