KR100752331B1 - Apparatus for removing white plume using ceramic regenerator - Google Patents

Abstract

A ceramic regenerative apparatus for removing white smoke is provided to improve the removal efficiency of white smoke while complementing demerits such as the low efficiency of a humidity reduction unit using cooling water, energy consumption of a reheating unit, and an acid corrosion problem of a heat exchanger due to the humidity reduction unit. A white smoke removal apparatus for removing a white smoke phenomenon of exhaust gas with high temperature and high humidity comprises: a first ceramic packing(ceramic regenerating part)(300) which passes exhaust gas with a high temperature therethrough to cool and condense the exhaust gas and recover and regenerate heat of the exhaust gas at the same time, and which is converted into the ceramic radiating part after regenerating heat; an external air blower(500) for sucking in an external air with a low temperature; a second ceramic packing(ceramic radiating part)(301) which passes the external air therethrough to heat the external air by radiating the regenerated heat, and which is converted into the ceramic regenerating part after radiating heat; a first four-way valve(200) directly connected to an exhaust gas suction pipe and connected to upper parts of the first and second ceramic packings; a second four-way valve(201) connected to an outlet side of the external air blower and lower parts of the first and second ceramic packings; a mixer(600) for mixing cooled exhaust gas with reduced humidity passing through the ceramic regenerating part and the second four-way valve with the heated external air passing through the ceramic radiating part and the first four-way valve; and a condensation water discharge part for discharging condensation water condensed in the ceramic regenerating part, and a gas exhaust part for exhausting the gas mixed in the mixer.

Description

Apparatus For Removing White Plume Using Ceramic Regenerator

1 is a conventional dehumidification / heating white smoke removal equipment.

Figure 2 is a block diagram showing a ceramic heat storage type white smoke removal device having a four-way valve according to the present invention.

Figure 3 is a block diagram showing a ceramic heat storage smoke removal apparatus having a one-way valve according to the present invention.

4 shows a honeycomb (Honeycom) ceramic.

<Description of Symbols for Main Parts of Drawings>

100: high temperature and high humidity exhaust pipe

200: 4-way valve 201: 4-way valve

200a, 200b, 200c, 200d, 201a, 201b, 201c, 201d: one-way valve

300: first ceramic filler 301: second ceramic filler

400: mist eliminator

500: External air blower (blowing fan)

600: mixer 601: stack

700: condensate outlet 701: condensate outlet

800: Heating device (steam heater, electric heater, fuel burner, etc.)

900: water-cooled heat exchanger

1000: stack

The present invention relates to a device for removing the white smoke phenomenon that occurs when the hot and humid exhaust gas from the incinerator or boiler, etc. in the stack and the water in the exhaust gas meets the ambient air of the temperature below the dew point (condensation).

Although white smoke is not regulated as an air pollutant, it has recently emerged as a civil complaint due to adverse effects on the human body, such as environmental pollution due to scattering of condensate in stacks, respiratory diseases, and clock disorders. The smoke prevention facility is required.

Gases emitted from incinerators and boilers often include a process of spraying water in the process of removing air pollutants. Thus, as shown in FIG. 1, the prior art method uses a combination of a heat exchanger using cooling water and a method of lowering the relative humidity of the final discharged gas by reheating the humidified exhaust gas.

The exhaust gas dehumidification process using the heat exchanger using the cooling water causes the cooling water to flow out of the heat exchanger while the exhaust gas passes through the heat exchanger to lower the temperature of the exhaust gas to condense moisture in the exhaust gas and separate and remove the condensate separately. In order to reduce the humidity of the exhaust gas, a metal heat exchanger such as a shell & tube type heat exchanger or a plate heat exchanger is used for this purpose, and a coolant is used as a coolant. Exhaust gas is discharged through the heat exchanger, thereby cooling to generate condensate, and condensation is mainly performed at the metal contact surface where the coolant fluid and the exhaust gas fluid contact each other. The use of metal heat exchanger such as shell & tube type and plate type utilizes high thermal conductivity of metal, but its cross-sectional area is much smaller than that of porous ceramics, especially hi-com type ceramics. This decreases the overall heat exchange efficiency.

When the cooling water is used in the humidity sensing process for removing moisture from the exhaust gas, the temperature of the exhaust gas cannot be lowered below the cooling water temperature, and the humidity of the exhaust gas that has been dehumidified is discharged as the saturated humidity of the lower temperature. Condensation does not resolve when contacted with air at temperatures below the exhaust temperature. Especially in winter, the coolant temperature is much higher than the atmospheric temperature, and the atmospheric temperature is very low.

To compensate for this, a heating device for lowering the relative humidity of the exhaust gas by raising the temperature of the exhaust gas through a reheating device such as a burner using a separate heat source, for example, a steam heater, an electric heater, and natural gas, is provided at the rear of the humidifier. I am installing more. Increasing the temperature of the exhaust gas is to lower the relative humidity of the exhaust gas to prevent condensation from coming into contact with the surrounding atmosphere as soon as the exhaust gas is discharged from the stack, and to reduce the white smoke phenomenon by keeping the relative humidity of the exhaust gas low. It is for. However, the reheating device has a different energy consumption depending on the humidity of the exhaust gas, the coolant temperature, and the atmospheric temperature, and a lot of energy is consumed in the winter when the white smoke phenomenon is particularly severe.

Exhaust gases emitted from incinerators and boilers often contain trace amounts of air pollutants such as sulfur oxides and chlorine compounds. In this case, the exhaust gas fluid is condensed through the heat exchange / cooling process inside the metal heat exchanger. On the contact surface of the exhaust gas fluid and the metal inside the heat exchanger, sulfur oxides contained in the exhaust gas are dissolved in the condensate during the condensation process. This is causing acid corrosion of the heat exchanger. Therefore, it may be necessary to operate above the dew point so that highly corrosive components such as sulfuric acid mist are not condensed in the humidification process, or when the sulfuric acid mist is collected and condensed, there is a problem of preservation of facilities due to acid corrosion of the metal heat exchanger. Therefore, there is a case in which the white smoke is removed by using only a heating device without a humidification process or by exhausting the exhaust gas at a high temperature in the boiler and incinerator facility itself, and in this case, energy consumption is most required.

In order to solve the above problems, the present invention, while improving the low efficiency of the humidifier using the cooling water and the energy consumption of the reheater, the acid corrosion of the heat exchanger due to the humidifier, such as high efficiency in the removal of smoke To have a purpose.

According to the present invention, the heat exchanger using a separate cooling water and a reheating device such as a burner and an electric heater are used, and the surface area is much wider by using a ceramic such as a hi-com, so that the overall heat exchange efficiency can be increased, and waste heat of the exhaust gas can be improved. In the process of recovering the waste heat, the exhaust gas is cooled and condensed, and the condensate is discharged to the outside, and the waste heat recovered through the heat storage medium is heated by forced suction of low temperature By mixing the heated air with the cooled and reduced absolute humidity, the temperature of the final gas mixture is increased, resulting in an efficient and economical white smoke that can emit exhaust gases with a low dew point and low relative humidity. It is intended to have a removal facility.

The present invention also solves the problem of shortening the life of the equipment by using a ceramic heat storage medium in the process of recovering waste heat, using a heat storage medium of the metal, sulfur oxides in the exhaust gas combined with condensed water, causing corrosion. It is.

The present invention relates to a device for removing the white smoke phenomenon occurring in the exhaust gas of high temperature and humidity, the ceramic heat storage unit for passing the high temperature exhaust gas to recover the heat of the exhaust gas to cool and condense and at the same time accumulate the recovered heat And a ceramic heat dissipation unit for heating the external air with heat accumulated in advance by passing the low temperature external air introduced through the external air blower, and the ceramic heat storage unit and the heat dissipation unit are heat-generated and heat-dissipated, respectively. The heat dissipating side is mixed with the valve operation unit connected to the heat storage unit and the heat dissipating unit, which is operated to be mutually converted to regenerated heat, and the outside air heated through the ceramic heat accumulating unit and the heat-sensitized exhaust gas and the ceramic heat dissipating unit. A mixer for lowering the relative humidity and an outlet for discharging the condensed water condensed in the ceramic heat storage unit And a gas discharge unit mixed in the mixer to discharge the mixed gas having a lower relative humidity.

The present invention may further include a mist removing unit for removing the mist remaining before the exhaust gas subjected to the temperature and humidity (absolute humidity) passing through the ceramic heat storage unit is introduced into the mixing unit.

According to the present invention, a ceramic heat storage material may be made of a honeycomb type ceramic, and the ceramic material may be made of porcelain having low water absorption and strong acid corrosion such as sulfuric acid mist.

The present invention can be configured by installing a plurality of four-way valve of the valve operation portion or four sets of two by two.

A feature of the present invention is a white smoke removal system that does not use a separate cooling water or heating device, and the exhaust gas is absorbed (absolute humidity) through a ceramic medium having a high heat exchange efficiency, and the heat exchange efficiency of low temperature external air is very high. It is characterized by the fact that it is heated through a high ceramic medium, mixed with the exhaust gas, and finally discharged through the stack.

The advantages of the facility include the direct heat exchange between the ceramic medium and cold outside air in the cold winter season, where the white smoke is severe. It has an excellent function to remove the heat, and after regenerating the waste heat of exhaust gas, it is excellent in heating efficiency due to high heat exchange efficiency in heating cold external air, so the efficiency of removing smoke in winter when the outside air temperature is low is more effective. It can be high.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

Figure 2 shows a white smoke removal device using a ceramic heat storage material of the present invention, which is located in the rear end of the incinerator or boiler installation.

The hot and humid exhaust gas discharged from the incinerator and the boiler facility is introduced into the first four-way valve 200 installed above the first and second ceramic fillers 300 and 301 through the exhaust gas suction pipe 100. In the first four-way valve 200, the first ceramic filler 300 or the second ceramic filler 301 is prepared in one direction only, that is, the heat-prepared preparation in a cooled state by releasing previously accumulated heat. 1 Exhaust gas is introduced into the upper portion of the ceramic filler 300. The hot exhaust gas passes through the first ceramic filler 300 by the flow on the ceramic filler, and in the process, the hot exhaust gas releases heat and thus the first ceramic filler (ceramic heat accumulator). ) 300 is regenerated, the exhaust gas is condensed as it is cooled, condensed water in contact with the heat storage medium flows downward by gravity, and the cooled exhaust gas is also flowed downward .

The condensate that has flowed down to the floor that protects the heat accumulator is removed to the outside through the condensate outlet 700 along the inclined or grooved bottom surface, and the cooled exhaust gas is condensed by a part of the vapor contained in the steam. This decreases the absolute humidity.

Honeycomb-type ceramics shown in FIG. 4 are highly efficient as the heat storage material of the first ceramic filler 300 so that the cooling condensed water particles can be easily discharged to the lower portion. Ceramic is made up of small cells and the cells have a straight tube structure.The thermal conductivity is 1 ~ 3W / mK, which is about 30 ~ 100 times larger than air, especially 825 ~ 1,050 square meters per cubic meter. It has a large specific surface area, and is characterized by very high heat exchange efficiency by enlarging the contact area with gas. As the ceramic heat storage material, a ceramic having very good thermal conductivity may be used.

The velocity of the exhaust gas passing through the ceramic heat storage body may be 2 m / sec or more, and the ceramic material may be mainly made of porcelain (porcelain), which is low in water absorption and resistant to corrosive gases such as sulfuric acid mist.

The exhaust gas cooled by the first ceramic filler 300 and reduced in absolute humidity is directly connected to the pipe through a pipe connected to the lower portion of the first ceramic filler 300, and the second ceramic filler 301 and the external air. The second four-way valve 201 connected to the discharge side of the blower 500 passes.

The cooled and dampened exhaust gas passing through the second ceramic four-way valve 201 and the second four-way valve 201 is mist eliminator 400 before entering the mixer 600. You can also pass).

In the case of passing through the mist eliminator 400, the small mist scattered with the cooled exhaust gas is removed. In general, the mist having a large particle flows downwardly with the condensate in the process of passing through the ceramic heat storage body by gravity. The mist is discharged and removed together with the condensate, but floats without being influenced by gravity, and is contained in the exhaust gas cooled and damped, and is filtered by the mist remover 400. The mist filtered by the mist eliminator 400 becomes cohesive and heavy to be discharged to the condensate outlet 701 installed at the lower portion of the mist eliminator, and only the remaining cooling and degassed exhaust gas flows into the mixer 600 to further dampen the mist. In addition, it will further reduce emissions of environmental pollutants. As mist eliminator, Knit Mesh Type or Chevron Type De-mister or Mist Eliminator can be used.

On the other hand, an external air blower 500 for sucking low temperature external air and flowing it into the second ceramic filler (ceramic heat sink) 301 is provided, and the discharge side of the external air blower 500 is formed by the first, The external air discharged from the external air blower 500 is connected to the second four-way valve 201 under the second ceramic fillers 300 and 301, and the second four-way valve 201 is connected to the second four-way valve 201. ) Is introduced into the lower portion of the second ceramic filler (ceramic radiator) 301. External air entering the lower portion of the ceramic filler 301 after passing through the four-way valve 201 passes through the second ceramic filler 301 that has already been regenerated, and takes heat accumulated in the filler 301 and heats it. Then, the second ceramic filler (ceramic radiator) 301 releases the accumulated heat to heat the external air and cools itself, and the heated external air continues to rise above the ceramic radiator.

That is, the low temperature external air introduced from the external air blower 500 is not passed through the exhaust gas discharged from the incinerator and the boiler facility through the second four-way valve 201 installed under the ceramic filler. Flows into the filler body 301, takes away the heat accumulated in the ceramic medium while passing through the previously regenerated ceramic medium, and the outside air is heated, and the ceramic medium loses heat to radiate heat, and the heated outside air is heated to the top of the ceramic filler. It is introduced into the mixer 600 through the first four-way valve 200. This process is a heat dissipation / heating process for raising the temperature of the final exhaust gas without a separate heating device by cooling / heating the regenerated ceramic medium using the low temperature external air and heating the external air with the heat released therefrom.

The second ceramic filler (ceramic heat sink) 301 may use the same ceramic as the first ceramic filler (ceramic heat storage body) 300.

The heat dissipation of the ceramic and the heating of the external air are simultaneously performed with the heat storage of the ceramic and the cooling / humidification process of the exhaust gas in the first ceramic filler (ceramic heat storage body) 300. That is, the heat storage / humidity process is performed in the first ceramic filler (ceramic heat storage body) 300 and the heat radiation / heating process of heating external air in the second ceramic filler (ceramic heat sink) 301. This is done. In order to simultaneously perform the processes, the ceramic filler has at least two or more beds (BED), and the bed for cooling the exhaust gas is called a heat storage body, and a bed for heating external air is called a heat sink.

The ceramic heat accumulator and the heat dissipator may be changed in a direction in which high-temperature exhaust gas or low-temperature external air flows by simultaneous operation of the first and second four-way valves 200 and 201 connected to the upper and lower parts, respectively. When the direction in which the exhaust gas and the outside air are introduced by the operation of the four-way valves 200 and 201 is changed, the ceramic heat accumulator and the heat radiator are alternated with each other, and the previous heat accumulator radiates heat and the previous heat radiator heat accumulates. Will be When the four-way valves 200 and 201 are operated to switch each other between the ceramic heat storage body and the heat sink, the ceramic heat storage body and the heat sink are after the heat storage process and the heat radiation process, respectively.

In addition, the first four-way valve 200, if the waste gas from the incinerator and boiler exhaust gas to the ceramic filler for a predetermined time, about 120 seconds in total, if the exhaust gas flowed into the first ceramic filler 300, the The valve may be operated to allow exhaust gas to flow into the second ceramic filler 301 after a period of time, and the external air may also be provided with a ceramic filler in which exhaust gas does not pass through the second four-way valve 201. If the exhaust gas is passing through the first ceramic filler 300, the external air passes through the second ceramic filler 301, and after the above-mentioned predetermined time elapses, for example, the external air is previously Valve may be operated so that the first ceramic filler 300 is not introduced, and the valve operation may be automatically operated by a timer. The automatic operation of such a valve is equipped with a temperature sensor on the outside of the heat storage body, and automatically measures the temperature difference between the hot exhaust gas flowing into the heat storage body and the cooled exhaust gas passing through the heat storage body, and as a result, the external temperature. Considering the temperature and humidity, it can be operated automatically by the temperature difference.

In addition, in the valve operation, a pressure gauge or a flow rate meter is installed in the exhaust gas suction pipe 100, and a suction amount control valve is installed in the suction pipe 100 so that the suction amount control valve can be automatically operated in parallel with the valve operation or the automatic operation. I will be able to.

The external air heated by the ceramic radiator 301 continuously rises and is connected to the second ceramic filler (ceramic radiator) 301 and the first ceramic filler (ceramic heat accumulator) 300, respectively. It flows to the first four-way valve 200, and continues to flow through the first four-way valve 200 to the mixer 600.

In the mixer 600, the cooled and damped exhaust gas and heated external air meet through the heat storage process, and the mixed gas is mixed with each other to have a higher temperature than the cooled exhaust gas, thereby significantly lowering the relative humidity.

As a result, the absolute humidity is lowered during the heat storage process, the dew point is lowered, and the mixed exhaust gas whose relative humidity is lowered by mixing with the heated external air is discharged through the stack. The mixed exhaust gas discharged in this way has a low dew point and a significantly low relative humidity, and even after contacting the surrounding air, the mixed exhaust gas gradually dissipates and exchanges heat, so that the water vapor contained in the mixed gas is evenly dispersed around. When it is high, the white smoke caused by condensation immediately and rapidly in contact with the surrounding atmosphere can be significantly removed.

In the case of using a ceramic heat storage body such as a hi-com type ceramic as in the present invention, the surface area is very wide, so the heat exchange efficiency is very excellent, and the reduction in absolute humidity is large due to the strong condensation of the exhaust gas, and thus the dew point can be considerably lowered. . In addition, the use of a ceramic heat storage material with excellent heat exchange efficiency, the waste heat recovery rate is also very good, the external air can absorb a considerable amount of heat, and the relative humidity of the mixed exhaust gas can also be significantly reduced. In addition, in consideration of the external temperature and humidity, the relative humidity of the gas mixed in the mixer may also be appropriately adjustable.

The heating method using outside air is more effective in winter when the white smoke is severe. In winter, when the temperature of the external air is very low, the heat of the ceramic medium is released as much as possible when the ceramic medium is cooled, thereby dehumidifying the exhaust gas in the ceramic heat storage body (absolute humidity) as the temperature of the ceramic is cooled to almost the temperature of the external air. The effect can be very large, and even when the water is saturated, since the exhaust gas discharge temperature does not differ significantly from the atmospheric temperature in winter, the relative humidity is lowered even with a slight temperature increase in the mixer 600, even though it is discharged. The phenomenon can be eliminated significantly. Therefore, the present invention has the advantage that the smoke removal efficiency is higher in the winter when severe white smoke phenomenon.

Figure 3 is an embodiment using a one-way valve in the white smoke removal device using a ceramic heat storage material of the present invention.

As shown in FIG. 3, the first and second four-way valves may be divided into four sets of two one-way valves to perform the same role. Of course, in this case, each one-way valve at the top and bottom of the ceramic filler is connected to each other in pairs, and one set in which two one-way valves are combined at each of the upper and lower parts of the ceramic filler is not connected to the other set. Two sets each of the upper and lower portions of the ceramic filler are provided. That is, one set of two one-way valves 200a and 200c connected to the ceramic heat accumulator and the heat radiator, respectively, is merged and directly connected to the high temperature exhaust gas suction pipe 100. Each pipe of two different one-way valves 200b and 200d connected to each other is combined and connected to the mixer 600, and each pipe of two one-way valves 201b and 201d respectively connected to the ceramic heat accumulator and the lower part of the heat sink. The pipes of one set connected to the discharge side of the external air blower 500 and the other two one-way valves 201a and 201c connected to the bottom of the heat storage body and the heat radiator are coalesced to combine the mixer 600 with each other. It can consist of one set connected.

The one-way valve 200a and the valve 200b and the valve 200c and the valve 200d above the first and second ceramic fillers 300 and 301 and the lower portion of the first and second ceramic fillers, respectively. The one-way valve 201a and the valve 201b, the pair of the valve 201c and the valve 201d are each in the state of being opened and closed alternately, the first and second charges as their respective opening and closing state is changed at the same time The role of total heat storage and heat dissipation will also change.

Hot exhaust gas is introduced into any one of the first and second ceramic fillers through one of the one-way valves 200a and 200c directly connected to each of the two branched sides of the exhaust gas suction pipe 100. . The place where the exhaust gas is introduced is where there is a previously discharging ceramic filler, that is, where there is a filler which is not introducing external air.

In the first ceramic filler body (ceramic heat storage body) 300 connected between the one-way valve 200a and the one-way valve 201a, and between the one-way valve 200b and the one-way valve 201b, respectively, By passing the high-temperature exhaust gas introduced through the one-way valve (200a) to recover the high-temperature heat to cool and condense, at the same time to accumulate the recovered heat, and after the first ceramic filler 300 is stored One-way valve 200a and valve 200b above the first and second ceramic fillers, valve 200c and valve 200d, and one-way valve 201a and valves below the first and second ceramic fillers As the pairs of the 201b, the valve 201c and the valve 201d are alternately opened and closed, they are converted to ceramic radiators.

In the second ceramic filler 301 connected between the one-way valve 200c and the one-way valve 201c and between the one-way valve 200d and the one-way valve 201d, respectively, the one-way valve 201d Heat the external air by passing the external air introduced through the) to release the accumulated heat, and the second ceramic filler 301 is radiated, and then the one-way valve 200a, the valve 200b, and the valve 200c. ) And the valve 200d, the one-way valve 201a and the valve 201b under the two sets of ceramic fillers are switched to the ceramic heat storage body as the pairs of the valve 201c and the valve 201d are alternately opened and closed. .

Each of the one-way valve 201a and the one-way valve 201c and the one-way valve 201c, respectively, which are alternately opened and closed, are connected to the connecting portion in which the lower pipes are integrated. The exhaust gas and the second ceramic filler which passed through the first ceramic filler 300 and passed through the one-way valve 201a through the mixer 600 respectively connected to the connection portion in which the upper pipe was coalesced and the second ceramic filler ( The heated outside air passing through the one-way valve 200d through 301 is introduced and mixed, thereby lowering the relative humidity.

A mist eliminator 400 may be installed between the mixer 600 and the connection portion where the one-way valve 201a and the lower pipe of each one-way valve 201c are combined.

The one-way valve 200a and the valve 200b on the first and second ceramic fillers, the valve 200c and the valve 200d, and the one-way valve 201a and the lower portion of the first and second ceramic fillers The valve 201b, the valve 201c, and the pair of the valve 201d are also automatically opened and closed by a timer as in the four-way valve in FIG. 2 or by using the front and rear temperature difference of the exhaust gas passing through the other heat storage body. It can be done.

In the present specification, the present invention has been described with reference to limited embodiments, but various embodiments are possible within the spirit and scope of the present invention, and the present invention should not be construed as limited by the illustrated embodiments. It should be understood that according to the claims.

In the present invention, in solving the smoke problem caused by exhaust of high-temperature and humid exhaust gas, the waste heat of the exhaust gas is discharged to the ceramic heat storage medium without using a reheating device such as a heat exchanger and a burner and an electric heater using separate cooling water. The waste gas is cooled and condensed, the condensate is discharged to the outside, and the waste heat recovered through the heat storage medium is heated by forced suction of low temperature external air, and By mixing air with cooled exhaust gas, the temperature of the final exhaust gas is increased to enable exhaust gas emission with low dew point and low relative humidity, and ceramics with high heat exchange efficiency. As a result, an economical white smoke removal facility with excellent white smoke removal efficiency is provided.

The present invention also solves the problem of shortening the life of the equipment by using a ceramic heat storage medium in the process of recovering waste heat, by using a ceramic heat storage medium, sulfur oxides in the exhaust gas is combined with condensate to cause corrosion. Permanence of the facility has been secured.

The present invention also uses a honeycomb-type ceramic heat accumulator having high heat exchange efficiency and low water absorption, and particularly using cold external air in winter when the white smoke phenomenon is severe. Made it possible.

Claims (4)

In the white smoke removal device for removing the white smoke phenomenon of the high temperature and high humidity exhaust gas, The first ceramic filler (ceramic) is passed through the high-temperature exhaust gas flowing through the exhaust gas inlet pipe to cool and condense, recover its heat, and accumulate the heat. Heat storage unit 300; An external air blower 500 for sucking low temperature external air; The second ceramic charge is converted to the ceramic heat storage unit that can accumulate heat of the exhaust gas of high temperature after the heat is discharged by releasing the accumulated heat by passing the external air introduced through the external air blower and heat radiation. All (ceramic heat dissipation unit) 301; Directly connected to an exhaust gas suction pipe, respectively connected to an upper portion of the first and second ceramic fillers to discharge hot exhaust gas only in one direction thereof, and one side of the first and second ceramic fillers is regenerated and The first four-way valve 200 to switch the role of the first, second ceramic filler by changing the direction of the exhaust gas after the heat dissipation; It is connected to the discharge side of the external air blower and the lower portion of the first, the second ceramic filler, respectively, and discharges the outside air only in one direction of the first, the second ceramic filler, and the first four-way valve ( A second four-way valve 201 for changing the direction of the external air and at the same time changing the direction of the external air to switch the roles of the first and second ceramic fillers; Cooled / dehumidified (absolute humidity) exhaust gas passing through the ceramic heat accumulator and the second four-way valve 201 and heated external air passing through the ceramic radiator and the first four-way valve 200. A mixer 600 for mixing to lower the relative humidity; A condensate discharge part discharging the condensed water condensed in the ceramic heat storage part and a gas discharge part discharging the gas mixed in the mixer; White smoke removal device characterized in that comprises a In the white smoke removal device for removing the white smoke phenomenon of the high temperature and high humidity exhaust gas, The first ceramic is passed through the branched side of the exhaust gas suction pipe to pass and cool and condense the high temperature exhaust gas, recover its heat, and accumulate heat, and then convert the heat into a ceramic heat dissipation part capable of dissipating heat after the heat storage. A charge body (ceramic heat storage unit) 300; An external air blower 500 for sucking low temperature external air; The second ceramic charge is converted to the ceramic heat storage unit that can accumulate heat of the exhaust gas of high temperature after the heat is discharged by releasing the accumulated heat by passing the external air introduced through the external air blower and heat radiation. All (ceramic heat dissipation unit) 301; Directly connected to each of the two branched sides of the exhaust gas suction pipe, respectively connected to the upper portion of the first and second ceramic fillers, and alternately opened and closed, and one side of the first and second ceramic fillers is thermally stored and the other side is heat dissipated. One-way valves (200a, 200c) of the first-a, first-c to switch the opening and closing to switch the role of the first and second ceramic fillers; Connected to the discharge side of the external air blower, each connected to a lower portion of the first and second ceramic fillers, wherein the lower connection side of the ceramic heat accumulator is opened and the other side is closed, and the first-a and first-c 2-way and 2-d one-way valves 201b and 201d for switching the opening and closing of the one-way valves at the same time, thereby switching the roles of the first and second ceramic fillers; The first and second ceramic fillers are respectively connected to the upper portion of the ceramic heat dissipating portion is connected to the upper connection side is open, the other side is closed, and the opening and closing of the one-way valves of the first one-a, first-c apart from the switch is switched 1-b, 1-d one-way valves (200b, 200d); Respectively connected to the lower portion of the first and second ceramic fillers, the lower connection side of the ceramic heat accumulator is opened and the other side is closed, and the opening and closing of the one-way valves of the second-b and second-d separated One-way valves 201a and 201c of 2-a and 2-c; It is connected to each lower pipe coalescing portion of the one-way valves of the 2-b, 2-d, and each of the upper pipe coalescing portion of the one-way valves of the 1-b, 1-d, respectively, and passes through the ceramic heat storage unit. A mixer (600) for lowering the relative humidity by allowing the cooled / dehumidified (absolute humidity) exhaust gas and the heated external air to pass through the ceramic radiator; A condensate discharge part discharging the condensed water condensed in the ceramic heat storage part and a gas discharge part discharging the gas mixed in the mixer; White smoke removal device characterized in that comprises a The mist of claim 1 or 2, wherein the mist is installed at a position before the cooled / humidified exhaust gas is introduced into the mixer 600, and the mist is removed before the mixer is introduced with the cooled / humidified exhaust gas. White smoke removal device further comprises a remover (400) 4. The apparatus of claim 3, wherein the first and second ceramic fillers 300 and 301 are made of porcelain honeycomb ceramic having low moisture absorption.

Images