KR20180029632A - Method and apparatus for removing air pollutents of burned gas for waste refrigerant - Google Patents

Abstract

The present invention relates to a thermal destruction treatment for waste refrigerant, and a detoxify system, which can withstand the high temperature, prevent corrosion by high concentration hydrogen fluoride gas, and increase fuel efficiency. The present invention comprises: a combustion furnace (11) having an inner space for treating the waste refrigerant; a supply chamber (12) formed in one side of the inner space of the combustion furnace (11) to install a burner (16); and a combustion chamber (20) formed in an intermediate region of the inner space of the combustion furnace (11) to supply combusted air required for combustion. The combustion chamber (20) has an air-cooling combustor (10) in which an inflow pipe (21) for discharging the combusted air is installed in the tangential direction of an inner sided surface of the combustion furnace (11). Therefore, the combusted air can be supplied by being rotated along the inner sided surface of the combustion furnace (11). Thus, fuel efficiency can be increased.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and apparatus for removing air pollutants from waste refrigerant combustion gases,

The present invention relates to a method and an apparatus for removing air pollutants in a blast furnace gas.

Currently, the waste refrigerant generated in the process of collection, collection or disposal in Korea is representative of CFC, which is an ozone depletion material, and HFC, which is a global warming material. In Korea, there is no facility to stably dispose or destroy the waste refrigerant generated in automobiles, households, and industrial use. The related patent registered in the domestic market mainly relates to a technology for destroying waste refrigerant by using plasma.

The plasma decomposition method of the prior art (Korean Patent No. 10-189842, apparatus and method for treating waste using plasma water) is a technology for completely decomposing a waste refrigerant by using high-temperature plasma.

However, such a plasma decomposition method is disadvantageous in that a dedicated facility for decomposing the refrigerant must be installed, and the processing cost is high economically. In addition, when the equipment is enlarged, it is difficult to maintain the temperature of the plasma gas, which is disadvantageous in that it is not suitable for large capacity processing.

LNG-Burning technology, another technology to destroy waste refrigerant, has a limitation in raising the combustion efficiency because it has a relatively large heat capacity in order to protect the outer wall of the combustion chamber from high temperature. Energy is consumed.

Both of these technologies have a problem that the combustion facility is damaged due to the corrosion due to the high concentration of hydrogen fluoride gas discharged from the thermal decomposition process of waste refrigerant.

Therefore, in order to apply LNG-burning technology for thermal destruction of waste refrigerant, it is required to cool the outer wall of combustor to replace refractory and to prevent corrosion of HF.

Korean Patent No. 10-189842 (Waste Treatment Apparatus Using Plasma Gas and Method Thereof)

SUMMARY OF THE INVENTION It is an object of the present invention, which has been made in view of the above circumstances, to provide a thermal cracking treatment for waste refrigerant, which can prevent the combustion singer from coming into contact with a side surface of a combustor, And to provide a harmless system.

Another object of the present invention is to provide a thermal destruction processing and detoxification system for a waste refrigerant which can withstand a high temperature of the combustor and can improve the combustion efficiency.

In order to accomplish the above object, the present invention provides a thermal destruction processing and detoxification system for a waste refrigerant, comprising: a single-walled combustion furnace having an internal space for treating waste refrigerant; A supply chamber formed at one side of the inner space of the combustion furnace and provided with a burner; And a combustion chamber formed in an intermediate space of the inner space of the combustion furnace and supplied with combustion air required for combustion, wherein an inlet pipe is connected to the combustion chamber so that combustion air is circulated along the inner surface of the combustion furnace, And an air-cooled combustor in which the inner surface of the furnace is cooled by the combustion air.

More preferably, the inflow pipe is equipped with a guide member extending along the inner side in the inflow pipe so that the combustion air to be discharged is pivoted along the inner side of the furnace.

More preferably, a guide member for guiding the combustion air discharged from the inflow pipe along the inner surface of the combustion furnace is formed in the combustion furnace at regular intervals along the inner surface of the combustion furnace.

Still more preferably, the guide member further includes a rotation shaft for rotating the guide member.

More preferably, an exhaust gas combustion chamber is further provided between the supply chamber of the combustion furnace and the combustion chamber, to which an exhaust gas recirculated is supplied.

More preferably, the exhaust gas combustion chamber is provided with an inflow pipe for discharging the combustion air so that the exhaust gas to be supplied is circulated and supplied along the inner surface of the combustion furnace.

More preferably, the inflow pipe is equipped with a guide member extending along the inner side in the inflow pipe so that the combustion air to be discharged is pivoted along the inner side of the furnace.

More preferably, guide members for guiding the flue gas discharged from the inflow pipe along the inner surface of the combustion furnace are formed in the combustion furnace at regular intervals along the inner surface of the furnace.

Still more preferably, the guide member further includes a rotation shaft for rotating the guide member.

More preferably, an exhaust gas recirculation pipe for supplying an exhaust gas is connected to the exhaust gas combustion chamber, and a heat exchanger is installed in the exhaust gas recirculation pipe.

More preferably, the heat exchanger is connected to a waste refrigerant supply pipe for guiding the waste refrigerant stored in the waste refrigerant tank to the supply chamber, so that heat exchange is performed between the waste gas and the waste refrigerant.

More preferably, the combustion furnace is made of carbon steel having a thickness of 5 to 20 mm, the inner side is cooled by the combustion air, and the temperature of the outer surface is maintained at 80 degrees or less.

It is more preferable that a plurality of the combustion chambers are formed in the combustion furnace, and each of the inflow pipes provided in the combustion furnace has different angles with respect to the direction perpendicular to the longitudinal direction of the combustion furnace Tilted.

More preferably, the inflow pipe mounted on the combustion chamber located at the farthest distance from the supply chamber is mounted inclined to the direction of the supply chamber.

Further, preferably, a fuel tank for supplying fuel is connected to the burner, and a cavity, a scrubber, an ID fan and a chimney through which the thermal decomposition gas passed through the air-cooled combustor in order are sequentially passed are connected to the air-cooled combustor, Some of the exhaust gas that is transferred to the ID fan is recycled to the air-cooled combustor through the recycle piping.

As described above, the thermal destruction processing and detoxification system for waste refrigerant only according to the present invention has an effect of improving the combustion efficiency by cooling the outer wall of the combustor with the combustion air, and the combustion gas is introduced into the combustor by the rotating swirl flow introduced into the inner side of the combustor. It is possible to prevent corrosion caused by HF at the source.

In addition, the thermal destruction processing and detoxification system for waste refrigerant only according to the present invention is an additional fluid for cooling the air-cooled combustor, and by recirculating a part of the 200-degree exhaust gas downstream of the air pollution control facility to the combustor, It is cost effective.

Further, in the thermal destruction processing and detoxification system for waste refrigerant exclusively used in the present invention, since the combustion air discharged so as to form a swirling flow is discharged so as to be inclined toward the supply chamber, sufficient time is required for the combustion gas to be completely burned in the combustion furnace So that the combustion efficiency is improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a state diagram showing a thermal destruction processing and a harmless system dedicated to a waste refrigerant, which is a first preferred embodiment of the present invention;
FIG. 2 is a state diagram showing a map of the material number of the thermal breakdown processing and system for waste refrigerant, which is the first preferred embodiment of the present invention,
3 is a cross-sectional view of the combustor shown in Fig. 1,
Fig. 4 is a cross-sectional view showing a portion "AA" in Fig. 3,
Figure 5 is a side view of the inlet tube shown in Figure 1,
Fig. 6 is a cross-sectional view of the portion "BB" in Fig. 3,
FIG. 7 is a cross-sectional view of a combustor according to a second preferred embodiment of the present invention,
8 is a cross-sectional view of a combustor according to a third preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Here, the shape, size, ratio, angle, number and the like shown in the accompanying drawings are schematic and may be modified somewhat. 2) Since the drawing is shown by the line of sight of the observer, the direction or position to explain the drawing can be variously changed according to the position of the observer. 3) The same reference numerals can be used for the same parts even if the drawing numbers are different. 4) If 'include', 'have', 'have', etc. are used, other parts can be added unless '~ only' is used. 5) Numerals can also be interpreted as described in the singular. 6) Even if the shape, size comparison, positional relationship, etc. are not described as 'weak or substantial', it is interpreted to include the normal error range. 7) 'after', 'before', 'after', 'after', and 'after' are not used to limit the temporal position. 8) The terms 'first, second, third', etc. are used selectively, interchangeably or repeatedly for convenience of division, and are not construed in a limiting sense. 9) If the positional relationship of the two parts is described as 'on top of', 'on top', 'on bottom', 'on side', 'on side' and so on, This can also be located. 10) When parts are electrically connected to '~ or', parts are interpreted to include not only singles but also combinations, but parts are interpreted solely if they are electrically connected to '~ or'.

Fig. 1 is a state view showing a thermal destruction processing and a harmless system for waste refrigerant only, which is a first preferred embodiment of the present invention. Fig. 2 is a diagram showing a material balance of a thermal destruction processing system for a waste refrigerant, FIG. 3 is a cross-sectional view showing the combustor shown in FIG. 1, FIG. 4 is a cross-sectional view showing a portion "AA" of FIG. 3, and FIG. 5 is a cross- And Fig. 6 is a cross-sectional view of the portion "BB" in Fig.

1 to 6, a thermal destruction processing and detoxification system for waste refrigerant, which is a first preferred embodiment of the present invention, includes a waste refrigerant tank 7 in which waste refrigerant is stored, a heat exchanger 6, an air-cooled combustor 10 A cavity 2, a scrubber 3, an air pollution control facility, an ID fan 4, and a chimney 5.

The air-cooled combustor 10 is composed of a combustion furnace 11 having a predetermined internal accommodation space. The interior space of the combustion furnace 11 is provided with a supply chamber 12, an exhaust gas combustion chamber 30 and a combustion chamber 20 in order from one side.

A burner 16 is provided in the supply chamber 12 formed at the lower end of the combustion furnace 11 and connected to the fuel tank 8 in the burner 16. It is most preferable to use LNG as the auxiliary fuel for combustion of waste refrigerant in the fuel tank 8, but other combustible fuel may be used. The supply chamber 12 is formed with a supply portion 15 to which a waste refrigerant supply pipe 7b for supplying waste refrigerant through a heat exchanger 6 to be described later is connected.

The combustion chamber 20 formed in the middle region of the combustion furnace 11 is provided with an inflow pipe 21 through which combustion air is forced by blowing the outside air with the pump 22. The inflow pipe 21 is installed along the tangential direction of the inner surface of the furnace 11 so that the combustion air discharged into the combustion furnace 11 can be pivoted along the inner side. The inflow pipe 21 is preferably installed along the tangential direction, but it may be installed so that its installation angle is at an obtuse angle of 90 degrees with respect to the center point of the combustion furnace 11. It is preferable to be formed at an obtuse angle or an acute angle close to 90 degrees. Also, as shown in FIG. 4, a guide member 40 is extended from the inlet pipe 21 at a predetermined distance from the inner surface. The guide member 40 serves to guide the combustion air discharged from the inflow pipe 21 to swing along the inner surface of the combustion furnace 11. A plurality of combustion chambers 20 are formed in the combustion furnace 11 in layers. The guide member 40 may be configured to extend to the vicinity of the adjacent inflow pipe 21. The furnace 11 has a thickness of 5 to 20 mm. Most preferably, it has a thickness of 10 mm. The combustion furnace 11 is made of a single wall and made of carbon steel. Preferably, STS310S material is used. Further, since the inner surface of the combustion furnace 11 is cooled by the combustion air, the temperature of the outer surface of the combustion furnace 11 is maintained at 80 degrees or less.

As shown in FIG. 5, the inlet pipe 21 is formed with a plurality of combustion chambers 30 so as to form a layer in the combustion furnace 11. The inflow pipe 21 mounted in each combustion chamber 30 is formed in a direction perpendicular to the longitudinal direction of the combustion furnace 11 or inclined with respect to the vertical direction. The inflow pipe 21 mounted on the combustion furnace 11 formed at the farthest position in the supply chamber 12 is mounted inclinedly so that the discharged combustion air is directed toward the supply chamber 12. When the inflow pipe 21 is tilted, the combustion air is circulated toward the supply chamber 12 so that the gas to be burned is sufficiently retained in the combustion furnace 11, thereby achieving complete combustion. As another embodiment, the inclination of the inflow pipe 21 mounted in each combustion chamber 30 can be adjusted. The inlet pipe 21 near the discharge passage 13 is mounted so as to be tilted so as to face the direction of the supply chamber 12 and the inlet pipe 21 located at the middle is mounted on the combustion furnace 11, And the inflow pipe 21 near the supply chamber 12 may be mounted to be tilted so as to face the discharge flow path 13. By inserting the inlet pipe 21 obliquely with respect to the horizontal plane, it is ensured that the gas can be sufficiently burned in the combustion furnace 11 during combustion.

Between the supply chamber 12 of the combustion furnace 11 and the combustion chamber 20 is formed an exhaust gas combustion chamber 40 to which a recirculated exhaust gas is supplied. An exhaust pipe 31 is connected to the flue gas combustion chamber 40 through a heat exchanger 7 and connected to a waste refrigerant supply pipe 7b for supplying waste gas subjected to heat exchange with waste refrigerant. The inflow pipe 31 is installed along the tangential direction of the inner surface of the furnace 11 so that waste gas discharged into the furnace 11 can be pivoted along the inner side. The inlet pipe 31 may be installed along the tangential direction, but the installation angle may be set at an obtuse angle of 90 degrees with respect to the center point of the combustion furnace 11. It is preferable to be formed at an obtuse angle or an acute angle close to 90 degrees. Further, as shown in FIG. 6, a guide member 40 is extended from the inlet pipe 31 at a predetermined distance from the inner surface. The guide member 40 guides the exhaust gas discharged from the inflow pipe 31 to swing along the inner surface of the combustion furnace 11. The exhaust gas combustion chamber 40 is preferably installed between the supply chamber 12 and the combustion chamber 20 but may be installed between a plurality of combustion chambers 20 according to a demand of the designer or may be installed at the uppermost end of the combustion chamber 20 It is also possible. The exhaust gas recirculation pipe 5b is connected to the inlet pipe 31 of the exhaust gas combustion chamber 30. A heat exchanger (6) is installed between the exhaust gas recycle pipe (5a) and the exhaust gas recycle pipe (5b) into which the exhaust gas flows.

The waste heat exchanger 6 is connected to a waste refrigerant supply pipe 7a connected to the waste refrigerant tank 7 and a waste refrigerant supply pipe 7b connected to the supply chamber 12. The heat exchanger 6 performs heat exchange between the waste refrigerant passing through the waste refrigerant supply pipe 7a 7b and the exhaust gas passing through the exhaust gas recycle piping 5a, 5b.

The combustor 2, the scrubber 3, the ID fan 4 and the chimney 5 are connected in turn to the discharge passage 13 of the air-cooled combustor 10. Some of the exhaust gas that is transferred to the ID fan 4 is recirculated to the air-cooled combustor 10 through the recycle lines 5a and 5b.

As shown in FIG. 7, the thermal destruction processing and detoxification system for waste refrigerant, which is the second preferred embodiment of the present invention, is provided with a guide member (140) for guiding the combustion air discharged from the inflow pipe (21) ) Are installed at regular intervals along the inner side.

In addition, a plurality of guide members 140 for guiding exhaust gas discharged from the inflow pipe 31 are also provided in the combustion furnace 11 at regular intervals along the inner side. The guide member 140 is formed in a plate shape. The guide member 140 is arranged in such a shape that its end is slightly inclined toward the center point of the combustion furnace 11. [ The structure and operation of the guide member 40 are the same as those of the first embodiment except that the shape of the guide member provided in the inlet pipe 21 is changed from the guide member 40 to the guide member 140.

8, the waste heat treatment and detoxification system for waste refrigerant, which is a third preferred embodiment of the present invention, is provided with a guide member (140) for guiding the combustion air discharged from the inflow pipe (21) ) Are installed at regular intervals along the inner side. The guide member 140 is formed with a pivot 141. The rotary shaft 141 is rotatably mounted on the combustion furnace 11 and a handle (not shown) capable of rotating the rotary shaft 141 is attached to the end of the rotary shaft 141 or a driving means such as a motor is connected, (141) is rotated.

In addition, a plurality of guide members 140 for guiding exhaust gas discharged from the inflow pipe 31 are also provided in the combustion furnace 11 at regular intervals along the inner side. The guide member 140 is formed in a plate shape. The guide member 140 is arranged in such a shape that its end is slightly inclined toward the center point of the combustion furnace 11. [ A pivot 141 is also formed in the guide member 140 installed in the inflow pipe 31. The rotary shaft 141 is rotatably mounted on the combustion furnace 11 and a handle (not shown) capable of rotating the rotary shaft 141 is attached to the end of the rotary shaft 141 or a driving means such as a motor is connected, (141) is rotated. The rotary shaft 141 connected to the guide member 140 installed in the inlet pipe 131 and the rotary shaft 141 connected to the guide member 140 installed in the inlet pipe 21 may be separately formed, As shown in FIG.

The structure and operation of the guide member 40 provided in the inlet pipes 21 and 31 are different from those of the guide member 40 in that the guide shaft 40 is provided with the pivot shaft 141, same.

The internal volume of the air-cooled type combustor 10 is 0.15 m ³ .

In the fuel tank 8, LNG is supplied as an auxiliary fuel to the combustion furnace 11 at 5.71 kg / hr and 8.99 Nm ³ / hr, at which time the temperature of the auxiliary fuel is normal temperature. The waste refrigerant stored in the waste refrigerant tank 7 is supplied at a rate of 20 kr / hr in a liquid state at room temperature. At this time, while being passed through the heat exchanger (6), it is supplied to the combustor (11) while being converted into the gas phase of about 25 degrees.

The exhaust gas of about 170 ° C. is passed through the heat exchanger 6 and is heat-exchanged with the waste refrigerant, and is supplied to the combustor 11 at a temperature of about 25 ° C. at 24.45 kr / hr.

Further, the combustion air supplied to the combustor is supplied to the combustor 11 at 230 kr / hr and 177 Nm ³ / hr. The air forcedly blown by the pump 22 is supplied into the combustor 11 through the inlet pipe 21. The combustion air passing through the inflow pipe 21 formed in the normal direction turns along the inner surface of the outer wall. At this time, the combustion air repeatedly turns sufficiently along the inner surface of the outer wall by the guide member (40). The combustion air circulates along the inner surface of the outer wall to cool the outer wall. Simultaneously, the combustion gas is prevented from contacting the inner surface of the outer wall. Therefore, since the combustion air is burned in the preheated state while being in contact with the outer wall, the combustion efficiency is improved and the inner side of the combustor 11 is prevented from being corroded by the gas under combustion.

When the combustion of the waste refrigerant together with the combustion air in the combustor 11 is completed, it is moved through the discharge flow path 13. At this time, the moving gas is moved to a temperature of about 1170 degrees Celsius at 281 kr / hr and 221 Nm ³ / hr. This gas is converted into an exhaust gas of 283 kr / hr and 224 Nm ³ / hr through a cavity (2) with a Urea of 2.6 kr / hr and a concentration of 4% by weight. The temperature is about 1100 degrees Celsius. Next, the exhaust gas is converted to 446 g / hr and 422 Nm ³ / hr while passing through the scrubber 3 having the process number of 118 rpm and the compressed air of 45 rke / hr. The temperature is about 170 degrees Celsius.

And some of them are transferred to the heat exchanger 6 through the waste refrigerant supply pipe 5a. The remaining flue gas is discharged through the ID fan 4 and the stack 5.

The exhaust gas that has been transferred to the waste refrigerant supply pipe 5a undergoes heat exchange with the waste refrigerant while passing through the heat exchanger 6 and is supplied to the combustor 11 via the waste refrigerant supply pipe 5b.

As described above, since the thermal destruction processing and detoxification system for waste refrigerant only according to the present invention is applied to waste or solid fuel in the case of conventional air-cooling type ointment technology, the excess air ratio is 1.8 to 2.2, It was possible to burn while supplying. At this time, the oxygen concentration in the combustion gas is about 12 vol%.

In the combustion furnace 11, heat energy is generated in the combustion process. In order to withstand this thermal energy, conventionally, an expensive heat-resistant metal material is used as the inner side to prevent damage to the equipment. The outer wall of the combustor was cooled by using the refractory having a low heat transfer rate. In the case of refractories, the heat capacity is very large, so it has a lot of heat energy, which leads to energy loss. Therefore, cooling of the inner side by the combustion air required for combustion instead of refractory can reduce the energy loss of the refractory, and at the same time, the combustion air is preheated during the cooling process of the outer wall of the combustor.

Since the combustion air cools the outer wall of the furnace 11, a large amount of combustion air (generally an excess air ratio of 2.0 or more) is required for sufficient cooling. However, in the case of the waste refrigerant, since a small excess air ratio operation is required for stable combustion, the excess air ratio must be lowered for the combustion control, and the amount of the combustion air must be reduced. At this time, the lack of cooling due to the decrease of combustion air is covered by the recirculated flue gas subjected to heat exchange. Further, it is possible to ensure complete combustion through the swirling flow of the combustion air supplied into the combustion furnace 11, prevention of local high-temperature region, and residence time in the combustion furnace 11. [

The internal feed rate is very important for swirl flow formation. In order to prevent the internal supply speed of the combustion furnace 11 from being reduced when the combustion air supply amount is reduced to lower the excess air ratio, the gap between the guide member 140 and the outer wall is reduced until the outer wall temperature becomes 80 degrees, Guide members (40, 140) are provided near the inflow pipes (21, 31) to maintain the feed rate.

In the present invention, since the target waste is a waste refrigerant and LNG is used as the auxiliary fuel, the excess air ratio can be operated at a relatively low value of 1.3 to 1.4. Therefore, as the supply amount of the combustion air decreases, Is further required. In the present invention, a flue gas around 200 degrees Celsius passing through a scrubber 3 as a fluid for cooling the outer wall of the furnace 11, and a combustion gas for forcedly blowing outside air are used.

The air-cooled type combustor 10 prevents the gas being burned from being brought into contact with the inner side surface of the combustion furnace 11 due to the rotating swirl flow introduced into the inner side of the combustion furnace 11, so that corrosion by HF can be prevented originally.

The heat exchanger 6 moves the recirculated flue gas passing through the scrubber 3 through the exhaust gas recirculation pipes 5a and 5b to heat exchange with the liquid waste refrigerant to vaporize the waste refrigerant, Is cooled to room temperature and supplied to the combustion furnace (11). The recirculated flue gas flow rate is used only as needed to vaporize the waste refrigerant supplied to the combustion furnace 11, and the recirculated flue gas around 200 degrees Celsius is provided to the heat exchanger 6 to facilitate the supply of waste refrigerant and the cooling of the combustor. Accordingly, the cooling effect of the outer wall of the combustion furnace 11 can be enhanced by reducing the amount of heat energy consumed for the evaporation of waste refrigerant and cooling the recirculated exhaust gas.

A secondary combustion chamber may be additionally provided at the rear end of the air-cooled combustor 10 for securing the residence time of the thermal decomposition gas and inducing complete combustion.

In the thermal destruction processing and the harmless system for waste refrigerant exclusively used in the present invention, the air pollution prevention facility serves to treat air pollutants and recover HF, and the ID fan 4 and the chimney 5 are disposed in the treated combustion exhaust gas atmosphere And pollutant monitoring.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

2: Kevity 3: Scrubber
4: ID fan 5: chimney
6: heat exchanger 7: waste refrigerant tank
8: fuel tank 10: air-cooled combustor
11: combustion furnace 12: supply chamber
20: combustion chamber 21, 31: inlet pipe
30: flue gas combustion chamber 40, 140: guide member
141:

Claims (15)

A single-wall furnace (11) having an internal space in which waste refrigerant is processed;
A supply chamber 12 formed at one side of the inner space of the combustion furnace 11 and equipped with a burner 16; And
And a combustion chamber (20) formed in an intermediate space of the internal space of the combustion furnace (11) and supplied with combustion air required for combustion,
The combustion chamber 20 is connected to an inlet pipe 21 so that combustion air is circulated along the inner surface of the combustion furnace 11 and is cooled by the air to cool the inner surface of the combustion furnace 11, And a combustor (10). The air conditioner according to claim 1, wherein the inflow pipe (21) is provided with a guide member (40) extending along the inner side surface of the inflow pipe (21) so that the discharged combustion air circulates along the inner side surface of the combustion furnace (11) A thermal destruction treatment and detoxification system for waste refrigerant only. The air conditioner according to claim 1, wherein a guide member (140) guiding the combustion air discharged from the inflow pipe (21) along the inner side surface of the combustion furnace (11) 11. The system of claim 1, further comprising: The system of claim 3, wherein the guide member (140) further includes a pivot (141) for rotating the guide member (140). The method according to claim 1, further comprising an exhaust gas combustion chamber (30) in which a recycle exhaust gas is supplied between the supply chamber (12) of the combustion furnace (11) and the combustion chamber (20) system. The exhaust gas purifying apparatus according to claim 5, wherein the flue gas combustion chamber (30) is provided with a waste refrigerant supply pipe (31) having an inlet pipe (31) for discharging combustion air so that exhaust gas supplied to the flue gas Thermal destruction treatment and harmless system. The air conditioner according to claim 6, wherein the inlet pipe (31) is provided with a guide member (40) extending along the inner surface at the inlet pipe (31) so that the discharged combustion air circulates along the inner surface of the combustion furnace (11) A thermal destruction treatment and detoxification system for waste refrigerant only. 7. The method according to claim 6, wherein a guide member (140) guiding the exhaust gas discharged from the inflow pipe (31) along the inner side surface of the combustion furnace (11) is provided in the combustion furnace (11) ) Is formed at a predetermined interval along the inner side surface of the heat exchanger. The system of claim 8, wherein the guide member (140) further comprises a pivot (141) for rotating the guide member (140). The exhaust gas recirculation system according to claim 5, wherein an exhaust gas recirculation pipe (5b) for supplying an exhaust gas is connected to the exhaust gas combustion chamber (30) Processing and detoxification systems. The apparatus according to claim 10, wherein the heat exchanger (6) is connected to waste refrigerant supply pipes (7a, 7b) for guiding waste refrigerant stored in the waste refrigerant tank (7) to the supply chamber (12) Thermal destruction treatment and detoxification system for waste refrigerant heat exchanged. The burner according to claim 1, wherein the combustion furnace (11)
Wherein the inner surface is cooled by the combustion air and the temperature of the outer surface is maintained at 80 DEG C or lower, wherein the carbon steel has a thickness of 5 to 20 mm. 2. The method according to claim 1, wherein a plurality of combustion chambers (30) are formed in the combustion furnace (11), and each of the inflow pipes (21) installed in the combustion furnace (11) A thermally destructive treatment and detoxification system for waste refrigerant mounted at different angles with respect to the direction perpendicular to the longitudinal direction. 14. The apparatus according to claim 13, wherein the inflow pipe (21) mounted in the combustion chamber (30) located at the farthest distance from the supply chamber (12) is disposed in a direction inclined toward the supply chamber And detoxification system. The method according to claim 1,
A fuel tank 8 for supplying fuel is connected to the burner 16,
The cavity 2, the scrubber 3, the ID fan 4 and the chimney 5 are connected to the air-cooled combustor 10 through which the thermal decomposition gas passed through the air-cooled combustor 10 is sequentially passed.
And part of the exhaust gas that is transferred to the ID fan (4) is recirculated to the air-cooled combustor (10) through the recirculation pipes (5a, 5b).

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