KR101560254B1 - Regenerator combustion and oxidization apparatus - Google Patents

Abstract

Disclosed is a heat accumulating combustion and oxidization apparatus for letting flow in and discharging hazardous gas and clean gas by using a valve and supplying purge gas by using a separate purge gas supply module to prevent unburned hazardous gas from being mixed with clean gas. According to the present invention, in the heat accumulating combustion and oxidization apparatus: hazardous gas, purge gas, and clean gas pass through by consecutively circulating along the divided areas of heat accumulating member; as clean gas passes through the heat accumulating member, the heat accumulating member accumulates heat to preheat hazardous gas; here, multiple first valves are independently opened and closed to allow hazardous gas to flow into a combustion chamber through the area of the heat accumulating member; a rotating plate is rotated to make the area of the heat accumulating member, through which hazardous gas has passed through, clean; and, multiple second valves are independently opened and closed to allow clean gas to be discharged from the combustion chamber. Thus, there is no worry that hazardous gas is mixed with the discharged clean gas. Therefore, the reliability of a product can be increased.

Description

[0001] REGENERATOR COMBUSTION AND OXIDIZATION APPARATUS [0002]

In the present invention, the harmful gas and the clean gas are respectively introduced and discharged by using a valve, and the purge gas is supplied by using a separate purge gas supply module to prevent the unburned harmful gas from mixing with the clean gas, .

A volatile organic compound is a hydrocarbon compound having a vapor pressure of 0.02 psi or more, or a boiling point of less than 100 ° C. When it coexists with a nitrogen compound in the air, it generates a photochemical reaction by the action of sunlight to generate ozone and photochemical oxide. Volatile organic compounds are not only substances that pollute the environment, but also harmful substances that cause respiratory tract disorders and carcinogens.

For this reason, industrial sites use various methods to remove harmful gases including volatile organic compounds.

There are combustion oxidation methods and catalytic oxidation methods for removing volatile organic compounds. In the combustion oxidation method, volatile organic compounds are directly burned at a high temperature of about 800 ° C to remove volatile organic compounds. The volatile organic compound is burned by using the catalyst to remove the volatile organic compound.

In the case of the combustion oxidation method in which the volatile organic compound is directly burned, since the volatile organic compound is burned at a high temperature, the discharged clean gas is also in a high temperature state. However, energy can be wasted if the waste heat of the discharged clean gas can not be used. Therefore, a regenerative burning oxidation apparatus for preheating the volatile organic compounds introduced after recovering the waste heat of the clean gas is widely used.

A conventional heat accumulation combustion oxidation apparatus disclosed in Korean Patent Laid-Open No. 10-2003-0011036 will be described.

The conventional regenerative burning oxidation apparatus is provided with a heat storage material 21 at a lower portion of the combustion chamber 10 formed by the heat insulating material 25 and the heat storage material 21 is partitioned by a plurality of partition walls 22. The portion of the combustion chamber 10 in which the heat storage material 21 is disposed is the heat storage chamber 20 and the partition wall 22 is arranged radially with respect to the center of the heat storage material 21. [

A housing 30 is provided below the heat storage material 21 and an upper fixing plate 41 and a lower fixing plate 42 are installed inside the housing 30. The upper fixing plate 41 and the lower fixing plate 42 are formed so as to correspond to each other and have opposed inlet holes a, clean air discharging holes b and purge holes c, The inflow hole a of the fixing plate 42 and the clean air discharge hole b and the purge hole c are formed by the portion of the heat storage material 21 partitioned by the partition wall 22, respectively.

A horizontal rotary plate 50 is rotatably installed between the upper fixed plate 41 and the lower fixed plate 42. The horizontal rotary plate 50 is provided with an inflow through portion 51, a discharge pipe portion 52, and a purge hole 53 Is formed.

Thus, the harmful gas introduced into the harmful gas inflow port 31 flows from the inflow hole a to the inflow penetrating portion 51 of the lower fixed plate 42 to the upper fixed plate 41 as the horizontal rotary plate 50 rotates. Flows into the inflow hole (a) -> branch pipe (43), passes through the heat storage material (21) and is burned in the combustion chamber (10) to become clean air. The clean air generated by the combustion of the harmful gas passes through the heat storage material 21 and flows through the branch pipe 43 → the inflow hole a of the upper fixing plate 41 → the discharge pipe section 52 → the lower fixing plate 42, The air is discharged to the discharge duct 32 through the inflow hole (a) → the clean air discharge hole (b).

The purge air is injected through the purge hole a of the upper fixing plate 41 and the lower fixing plate 42 and the purge hole 53 of the horizontal rotary plate 50. The purge air flows through the heat storage material 21 and the branch pipe 43 To the combustion chamber 10 through the heat accumulating material 21. [0031]

Thus, the noxious gas flows sequentially along one side of the divided heat storage material 21, and the clean air is sequentially discharged along the other side of the divided heat storage material 21, so that the heat storage material 21 is clean air The noxious gas is preheated by the heat absorbed by the heat storage material 21 and flows into the combustion chamber 10. [

The conventional regenerative thermal oxidizer has a gap between the outer peripheral surface of the horizontal rotary plate 50 and the inner peripheral surface of the housing 30 so that the horizontal rotary plate 50 can rotate smoothly. This allows the upper fixing plate 41 and the horizontal rotary plate 50 to communicate with each other between the lower fixing plate 42 and the horizontal rotary plate 50, between the outer peripheral surface of the horizontal rotary plate 50 and the inner peripheral surface of the housing 30, , There is a possibility that the unburned harmful gas is mixed with the clean air to be discharged. Therefore, there is a disadvantage that the reliability of the product is deteriorated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a regenerative combustion oxidizing apparatus capable of solving all the problems of the prior art as described above.

It is another object of the present invention to provide a regenerative combustion oxidizing apparatus capable of preventing pollution of clean gas by introducing and discharging noxious gas and clean gas respectively using valves.

According to an aspect of the present invention, there is provided a regenerative combustion oxidation apparatus comprising: a main body having a combustion chamber in which a noxious gas is introduced and combusted; Wherein the combustion chamber is provided at a lower inner side portion of the main body below the combustion chamber and is divided into a plurality of zones radially with respect to the center of the combustion chamber and at least one of the plurality of zones passes through the combustion chamber , One or more of the plurality of the zones through which the noxious gas does not pass is discharged through the clean gas generated by the combustion of the noxious gas in the combustion chamber and is discharged through the one zone in which the noxious gas and the clean gas do not pass A heat storage member through which the purge gas passes and is introduced into the combustion chamber together with the noxious gas; A plurality of noxious gas inflow tubes provided corresponding to the number of the zones and each having an upper end communicating with the zone side and supplying the noxious gas into the zone to introduce the noxious gas into the combustion chamber; A plurality of first valves respectively installed in the noxious gas inflow pipes and independently opening and closing the noxious gas inflow pipes; A plurality of clean gas discharge pipes provided so as to correspond to the number of the spaces and each having an upper end communicating with the space side and guiding the clean gas generated in the combustion chamber to be discharged to the outside through the space; A second valve installed in the clean gas discharge pipe and independently opening and closing the clean gas discharge pipe; And a purge gas supply module installed on a lower surface of the main body on the side of the heat storage member and supplying the purge gas into one of the spaces and introducing the purge gas into the combustion chamber.

The regenerative combustion oxidizing apparatus according to the embodiment of the present invention is characterized in that the harmful gas, the purge gas and the clean gas are sequentially circulated along the partition of the heat storage member, and the clean gas passes through the heat storage member, Preheat the noxious gas by storing heat. At this time, the plurality of first valves are independently opened and closed to allow the noxious gas to flow into the combustion chamber through the region of the heat accumulating member, the rotating plate is rotated to clean the region of the heat accumulating member through which the noxious gas has passed, The second valve is independently opened and closed to allow the clean gas to be discharged from the combustion chamber, so that there is no possibility that the harmful gas is mixed into the discharged clean gas. Therefore, the reliability of the product can be improved.

1 is a perspective view of a regenerative combustion oxidizing apparatus according to a first embodiment of the present invention;
FIG. 2 is a partially exploded perspective view of FIG. 1. FIG.
3 is a schematic cross-sectional view of the lower body shown in Fig.
4A and 4B are schematic plan views of the heat storage member shown in Fig.
FIG. 5A and FIG. 5B are partial perspective views of the noxious gas storage tank and the clean gas storage tank shown in FIG. 1;
6 is a plan view of a heat accumulating member of a regenerative burning oxidation apparatus according to a second embodiment of the present invention.
7A and 7B are plan views of a heat storage member of a thermal storage combustion oxidation apparatus according to a third embodiment of the present invention.
8 and 9 are sectional views of a regenerative combustion oxidizer value according to fourth and fifth embodiments of the present invention.

It should be noted that, in the specification of the present invention, the same reference numerals as in the drawings denote the same elements, but they are numbered as much as possible even if they are shown in different drawings.

Meanwhile, the meaning of the terms described in the present specification should be understood as follows.

The word " first, "" second," and the like, used to distinguish one element from another, are to be understood to include plural representations unless the context clearly dictates otherwise. The scope of the right should not be limited by these terms.

It should be understood that the terms "comprises" or "having" does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

It should be understood that the term "at least one" includes all possible combinations from one or more related items. For example, the meaning of "at least one of the first item, the second item and the third item" means not only the first item, the second item or the third item, but also the second item and the second item among the first item, Means any combination of items that can be presented from more than one.

The term "above" means not only when a configuration is formed directly on top of another configuration, but also when a third configuration is interposed between these configurations.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a regenerative burning oxidation apparatus according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First Embodiment

FIG. 1 is a perspective view of a regenerative combustion oxidizing apparatus according to a first embodiment of the present invention, FIG. 2 is a partially exploded perspective view of FIG. 1, and FIG. 3 is a schematic sectional view of the body shown in FIG.

As shown in the figure, the regenerative thermal oxidizer according to the first embodiment of the present invention may include a body 110 having a space formed therein. The inner upper portion of the body 110 may be formed as a combustion chamber 111a into which a harmful gas such as a volatile organic compound and the like is burnt and the inner lower portion may be formed as a heat storage chamber in which a heat storage member 120 have.

The main body 110 may be provided with an upper body 111 and a lower body 115 coupled to each other and the inside of the upper body 111 is formed as a combustion chamber 111a, Can be formed.

A heat storage member 120 formed of a ceramic material through which noxious gas, purge gas and clean gas pass may be installed in the heat storage chamber. The heat accumulating member 120 may be partitioned into (2n-1) (n is a natural number of 2 or more) regions radially with respect to the center of the heat accumulating member 120. [

When the heat accumulating member 120 is divided into (2n-1) zones, the noxious gas can pass through (n-1) zones. The clean gas generated in the combustion chamber 111a by the combustion of the noxious gas can pass through the same (n-1) zones as the number of the zones through which the noxious gas passes, and the purge gas passes through one zone .

The heat accumulating member 120 is divided into a plurality of unit heat accumulating members 120a which are hollow hollow bodies having upper and lower openings so that noxious gas, purge gas and clean gas can pass through the heat accumulating member 120 . That is, a plurality of unit heat-accumulating members 120a are arranged in rows and columns, and a plurality of unit heat-accumulating members 120a arranged in rows and columns are stacked to form heat-accumulating members 120. [

Since the gas passes through the inside of the unit heat storage member 120a, the inside of the unit heat storage member 120a is pores.

The heat storage combustion oxidation apparatus according to the first embodiment of the present invention shows that the heat storage member 120 is divided into five zones 121, 122, 123, 124 and 125 having n = 3.

The partition 117 may be in contact with the inner surface and the upper surface of the upper main body 115 so that the heat storage member 120 can be divided into five zones 121, 122, 123, 124 and 125. Since the unit heat storage members 120a are arranged in rows and columns in the spaces partitioned by the partition walls 117, spaces defined by the partition walls 117 are formed in the spaces 121, 122, 123, 124, 125).

The lower surface of the heat accumulating member 120 may be supported by a support plate (not shown) of the mesh structure and spaced apart from the lower surface of the lower main body 115.

The heat accumulating member according to the first embodiment of the present invention is divided into five zones 121, 122, 123, 124, 125, so n = 3. Thus, the noxious gas can pass through two zones, the clean gas can pass through two zones where noxious gas does not pass, and the purge gas can pass through one zone where neither the noxious gas nor the clean gas passes .

At this time, it is preferable that the zone through which the noxious gas passes and the zone through which the clean gas passes are substantially symmetrical with respect to the center of the heat accumulating member 120. The noxious gas, the purge gas, and the clean gas can pass through the regions of the heat storage member 120 one by one while sequentially moving. That is, the noxious gas, the purge gas and the clean gas can circulate through the region of the heat storage member 120, respectively, and the circulation directions of the noxious gas, the purge gas and the clean gas are preferably the same.

The heat accumulating member 120 will be described later.

A noxious gas storage tank 141 may be installed outside the main body 110 and a clean gas storage tank 143 (see FIG. 5A) may be installed in the noxious gas storage tank 141 And the like. That is, the noxious gas generated in the industrial field can be stored in the noxious gas storage tank 141, and the clean gas in the combustion chamber 111a generated by the combustion of the noxious gas is stored in the clean gas storage tank 143 . The harmful gas and the clean gas are stored in the noxious gas storage tank 141 and the clean gas storage tank 143, respectively, so that they are not mixed.

Between the main body 110 and the noxious gas storage tank 141 is disposed a noxious gas stored in the noxious gas storage tank 141 through the respective sections 121, 122, 123, 124, 125 of the heat storage member 120, A plurality of noxious gas inflow pipes 151 may be installed for introducing the noxious gas into the first and second noxious gas supply pipes 111a. The upper end side of the harmful gas inflow pipe 151 can communicate with the respective areas 121, 122, 123, 124 and 125 of the heat accumulating member 120 and the lower end can communicate with the harmful gas storage tank 141 . The number of the noxious gas inlet pipes 151 may correspond to the number of the divided spaces 121, 122, 123, 124, 125 of the heat accumulating member 120.

Each of the noxious gas inlet pipes 151 may be provided with a first valve 152 for independently opening and closing the respective noxious gas inlet pipes 151. The noxious gas stored in the noxious gas storage tank 141 can be selectively introduced into the respective zones 121, 122, 123, 124, and 125 of the heat storage member 120 by the first valve 152.

The clean gas in the combustion chamber 111a is supplied to the clean gas storage tank (not shown) through the respective sections 121, 122, 123, 124 and 125 of the heat accumulating member 120 between the main body 110 and the clean gas storage tank 143 143) (see FIG. 5A). The upper end side of the clean gas discharge pipe 154 can communicate with the side of each of the areas 121, 122, 123, 124 and 125 of the heat accumulating member 120 and the lower end can communicate with the clean gas storage tank 143 . The number of the clean gas discharge pipes 154 may correspond to the number of the divided spaces 121, 122, 123, 124 and 125 of the heat accumulating member 120.

Each clean gas discharge pipe 154 may be provided with a second valve 155 for independently opening and closing the respective clean gas discharge pipes 154. The clean gas in the combustion chamber 111a is selectively passed through the respective sections 121, 122, 123, 124 and 125 of the heat accumulating member 120 by the second valve 155 to the clean gas storage tank 143 Can be introduced.

A communication duct 119 communicating with the respective sections 121, 122, 123, 124, 125 of the heat accumulating member 120 may be installed on a lower surface of the lower main body 115 of the main body 110, respectively. The upper ends of the noxious gas inlet pipes 151 corresponding to the respective sections 121, 122, 123, 124 and 125 of the heat accumulating member 120 can communicate with the communication ducts 119, Can communicate with each other.

At this time, it is preferable that the noxious gas inlet pipe 151 and the clean gas discharge pipe 154 are disposed radially with respect to the center of the heat accumulating member 120, respectively.

A first purge hole 115a (see FIG. 3) communicating with the respective regions 121, 122, 123, 124, and 125 of the heat accumulating member 120 is formed on the lower surface of the lower body 115 of the body 110 . A purge gas supply module (not shown) for supplying purge gas to each of the regions 121, 122, 123, 124 and 125 of the heat accumulating member 120 through the first purge hole 115a is provided on the lower surface of the lower main body 115 160 may be installed.

The purge gas supply module 160 may include a purge gas storage tank 161, a rotating plate 163, and driving means.

The upper surface of the purge gas storage tank 161 may be opened and the upper end surface of the purge gas storage tank 161 may be coupled to the lower surface of the lower body 115. At this time, the first purge hole 115a is accommodated in the purge gas storage tank 161 and the purge gas is stored in the space formed by the lower surface of the purge gas storage tank 161 and the lower body 115 .

The rotary plate 163 can be rotatably installed inside the storage tank 161 and the purge gas of the purge gas storage tank 161 can be supplied to the respective regions of the heat accumulating member 120 through the first purge hole 115a 121, 122, 123, 124, 125, respectively.

In detail, a single second purge hole 163a may be formed in the rotary plate 163. The second purge hole 163a is communicated with the first purge hole 115a communicated with the region of the heat accumulating member 120 through which the noxious gas and the clean gas do not pass, The purge gas of the purge gas storage tank 161 flows into the combustion chamber 111a through the region of the second purge hole 163a → the first purge hole 115a → the heat storage member 120. [

The driving means may be provided on a lower surface of the purge gas storage tank 161 and as a motor 165 for rotating the rotating plate 163.

Since there is a gap between the lower surface of the lower main body 115 and the rotary plate 163, each first purge hole 115a can always communicate with the inside of the purge gas storage tank 161. [ Then, purge gas can be supplied to each of the regions 121, 122, 123, 124, and 125 of the heat accumulating member 120 through each of the first purge holes 115a.

In order to prevent this, a sealing member 116 may be installed on the lower surface of the lower main body 115 so as to surround the respective first purge holes 115a. Then, the first purge hole 115a is sealed by the sealing member 116 with the gap between the lower surface of the lower main body 115 and the rotary plate 163. The purge gas is supplied to the region of the heat accumulating member 120 only through the first purge hole 115a communicated with the second purge hole 163a by the rotation of the rotary plate 163. [

The regenerative combustion oxidizing apparatus according to the first embodiment of the present invention circulates sequentially along the zones 121, 122, 123, 124 and 125 of the divided heat accumulating member 120 to remove harmful gas, The purge gas passes through the heat accumulating member, and the heat accumulating member 120 accumulates heat due to the clean gas passing through the heat accumulating member, thereby preheating the noxious gas. At this time, the plurality of first valves 152 are independently opened and closed to allow the noxious gas to flow into the combustion chamber 111a, and the rotation plate 163 is rotated to clean the area of the heat storage member 120 through which the noxious gas has passed And then the second valves 155 are independently opened and closed to allow the clean gas to be discharged from the combustion chamber 111a, there is no possibility that the harmful gas is mixed with the clean gas.

The heat accumulating member 120 of the heat accumulating combustion oxidizing apparatus according to the first embodiment of the present invention will be described with reference to Figs. 1 to 4B. 4A and 4B are schematic plan views of the heat accumulating member shown in Fig.

Hereinafter, the noxious gas, the purge gas and the clean gas are circulated in the clockwise direction with respect to the center of the heat accumulating member 120 and the regions 121, 122, 123, 124 and 125 of the heat accumulating member 120 Let's take a sequential passage through each example.

4A and 4B, since the heat accumulating member 120 is divided into five zones 121, 122, 123, 124 and 125, n = 3. Thus, it is preferred that the noxious gas and the clean gas each pass through two zones and pass through approximately symmetrical zones, respectively. And the purge gas passes through one zone.

The diameter of the second purge hole 163a formed in the rotary plate 163 is larger than the diameter of the first purge hole 115a formed in the lower main body 115 and the sealing member 116 The operation of the heat accumulating member 120 will be described.

All of the first valve 152 and all of the second valves 155 are closed and it is assumed that the state in which the first purge hole 115a and the second purge hole 163a are not in the initial state. In the initial state, the first valves 152a and 152b and the second valves 155c and 155d are respectively connected to the first and second valves 152a and 152b so that the noxious gas and the clean gas can pass through the zones 121 and 222 and the zones 123 and 124, Open. The noxious gas then flows into the combustion chamber 111a through the spaces 121 and 122 and the noxious gas introduced into the combustion chamber 111a is burned while moving along one side surface and the upper surface and the other side surface of the combustion chamber 111a After being cleaned, it is discharged through zones 123 and 124. At this time, the spaces 123 and 124 of the heat accumulating member 220 through which the clean gas has passed through heat exchange with the clean gas to accumulate heat.

In this state, if the rotating plate 163 rotates and the second purge hole 163a communicates with the first purge hole 115ae of the region 125 (see FIG. 4A), the remaining noxious gas in the region 125 Is introduced into the combustion chamber 111a together with the purge gas, so that the zone 125 is in a clean state. That is, the purge gas can be supplied to the combustion chamber 111a through the zone 125 located between the rearmost zone 121 through which the noxious gas passes and the most distant zone 124 through which the clean gas passes.

The purge gas may be clean air.

The second valve 155e and the second valve 155c are opened and closed respectively and the first valve 152c and the first valve 152a are opened and closed, respectively, when the zone 125 is in a clean state, do. The noxious gas then passes through the zones 122 and 123 into the combustion chamber 111a and the clean gas passes through the zones 124 and 125 and is discharged. The zone 125 is clean by the purge gas, so that the noxious gas is not mixed into the clean gas discharged through the zone 125.

Thereafter, the rotary plate 163 rotates so that the second purge hole 163a is communicated with the first purge hole 115aa of the region 121 (see FIG. 4B) The second valve 155d is opened and closed and the first valve 152d and the first valve 152b are opened and closed. The noxious gas then passes through the zones 123 and 124 into the combustion chamber 111a and the clean gas passes through the zones 125 and 121 and is discharged. The zone 121 is clean by the purge gas, so that the noxious gas is not mixed into the clean gas discharged through the zone 121.

FIGS. 5A and 5B are partially cutaway perspective views of the noxious gas storage tank and the clean gas storage tank shown in FIG. 1. FIG.

5A, a clean gas storage tank 143 is partitioned inside the noxious gas storage tank 141, and the noxious gas storage tank 141 and the clean gas storage tank 143 are concentric with each other have. At this time, the noxious gas inflow pipe 151 may be located outside the clean gas discharge pipe 154 with respect to the center of the heat accumulating member 120 (see Fig. 2).

The incoming harmful gas is burned at high temperature and then becomes clean gas. Therefore, the volume of the clean gas discharged compared to the volume of the introduced noxious gas is further increased. If the diameter of the clean gas discharge pipe 154 is larger than the diameter of the harmful gas inlet pipe 151, the clean gas can be easily discharged.

5B, a harmful gas storage tank 141 is partitioned in the clean gas storage tank 143, and the clean gas storage tank 143 and the noxious gas storage tank 141 are concentrically arranged . At this time, the clean gas discharge pipe 154 may be positioned outside the noxious gas inlet pipe 151 with respect to the center of the heat accumulating member 120 (see FIG. 2).

Since the space adjacent to the edge of the heat accumulating member 120 is wider than the center of the heat accumulating member 120, the diameter of the clean gas discharging pipe 154 can be increased without restriction of the installation space .

Second Embodiment

FIG. 6 is a schematic plan view of a heat accumulating member of the regenerative thermal oxidizer according to the second embodiment of the present invention, and only differences from the first embodiment will be described.

The heat accumulating member 220 according to the second embodiment of the present invention can be divided into five zones 221, 222, 223, 224 and 225 having n = 3, The outer surface of the heat accumulating member 220 facing the side surface of the main body 115 (see FIG. 2) may be formed in a pentagonal shape corresponding to the divided number of the heat accumulating member 220. At this time, the side surface of the lower main body 115 may also be formed in a pentagon corresponding to the outer surface of the heat storage member 220.

Since the outer circumferential surfaces of the respective zones 221, 222, 223, 224 and 225 of the heat accumulating member 220 are formed in a straight line, the unit heat accumulating members 220a and the lower heat collecting members 220a, The space that is formed between the side surfaces of the main body 115 is reduced. Therefore, the heat storage efficiency of the heat storage member 220 can be improved because the unit heat storage members 220a can be arranged in the respective zones 221, 222, 223, 224, and 225 of the heat storage member 220 in a concentrated manner.

Third Embodiment

7A and 7B are plan views of a heat accumulating member of the heat accumulating combustion oxidation apparatus according to the third embodiment of the present invention, and only differences from the first embodiment will be described.

As shown in the figure, the heat accumulating member 320 can be divided into 2n (n is a natural number of 2 or more) regions radially with respect to the center of the heat accumulating member 320. [ When the heat accumulating member 320 is partitioned into 2n zones, the noxious gas can pass through (n-1) zones. The clean gas generated in the combustion chamber 111a (see FIG. 3) by the combustion of the noxious gas can pass through the same (n-1) zones as the number of the zones through which the noxious gas passes, Lt; / RTI >

The thermal storage combustion oxidation apparatus according to the third embodiment of the present invention shows that the heat storage member 320 is divided into four zones 321, 322, 323, and 324 having n = 2. Thus, the noxious gas can pass through one zone, the clean gas can pass through one zone where noxious gas does not pass, and the purge gas can pass through any zone where neither the noxious gas nor the clean gas passes can do.

The diameter of the second purge hole 363a formed in the rotary plate 363 is larger than the diameter of the first purge hole 315a and the sealing member 116 (see FIG. 3) The operation of the heat accumulating member 320 will be described.

All the first valve 352 and all the second valves 355 are closed and the first purge hole 315a and the second purge hole 363a are assumed to be in the initial state. The first valve 352a and the second valve 355c are opened respectively so that the noxious gas and the clean gas can pass through the zone 321 and the zone 323 respectively. The noxious gas flows into the combustion chamber 111a through the zone 321 and the noxious gas introduced into the combustion chamber 111a is combusted while moving along one side surface and the upper surface and the other side surface of the combustion chamber 111a, And the clean gas is discharged through the zone 323. At this time, the zone 323 of the heat accumulating member 320 through which the clean gas passes is heat-exchanged with the clean gas to accumulate heat.

In this state, the rotating plate 363 rotates so that the first purge zone 324 of the zone 324 located between the rearmost zone 321 through which the noxious gas passes and the zone 323 through which the clean gas passes, (See FIG. 7A), the noxious gas remaining in the zone 324 flows into the combustion chamber 111a together with the purge gas, so that the zone 324 is in a clean state do.

When the zone 324 is in a clean state, the second valve 355d is opened and the second valve 355c is closed, and the first valve 352b is opened and the first valve 352a is closed. Then, the noxious gas passes through the zone 322 and into the combustion chamber 111a, and the clean gas passes through the zone 324 and is discharged. Since the zone 324 is clean by the purge gas, the clean gas discharged through the zone 324 is not mixed with the noxious gas.

Thereafter, the rotary plate 363 rotates to communicate the first purge hole 315aa communicated with the zone 321 and the second purge hole 363a (see FIG. 7B), and then the second valve 355a Is opened and the second valve 355d is closed, the first valve 352c is opened and the first valve 352b is closed. Then, the noxious gas passes through the zone 323 and flows into the combustion chamber 111a, and the clean gas passes through the clean zone 321 and is discharged.

The outer surface of the heat accumulating member 320 opposing the side surface of the lower main body 115 (see Fig. 2) of the main body 110 is covered with the outer surface of the heat accumulating member 320, And may be formed in a 2n square shape corresponding to the number of the divided regions of the heat accumulating member 320. [ The side surface of the lower main body 115 may also be formed in a 2n square shape corresponding to the outer surface of the heat storage member 320. [

8 and 9 are sectional views of the regenerative thermal oxidizer according to the fourth and fifth embodiments of the present invention, and only differences from the first embodiment will be described.

Fourth Embodiment

8, the combustion chamber 411a of the thermal storage combustion oxidation apparatus according to the fourth embodiment of the present invention is provided with a heating element 430 (hereinafter referred to as a heating element) which acts as a heat source for burning the noxious gas introduced into the combustion chamber 411a Can be installed. Then, even if the heating element 430 generates heat, no gas is generated, so that the clean gas is not contaminated.

The heating elements 430 may be formed in a bar shape so that a plurality of the heating elements 430 may be radially arranged with respect to the center of the heat storage member 420 so that the combustion temperature can be uniform over the entire region of the combustion chamber 411a. At this time, the heating element 430 may be formed of molybdenum disilicide, which is a non-metallic material, or may be formed of any one selected from metal materials such as molybdenum, tungsten, and platinum.

Fifth Embodiment

9, a regenerative combustion oxidation apparatus according to the fifth embodiment of the present invention includes a combustion chamber 511a formed on the lower side of the main body 510 and a heat storage material 520 disposed on the upper side of the combustion chamber 511a Can be installed.

Thus, the pores of the heat accumulating member 520 are prevented from being clogged by the falling dust generated together with the clean gas upon combustion of the harmful gas, so that the harmful gas treatment efficiency and heat recovery efficiency can be improved. In addition, since the working period for maintenance of the heat accumulating member 520 is long, it can be economical.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be clear to those who have knowledge of. Therefore, the scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention.

110:
111a: Combustion chamber
120: heat accumulating member
151: Noxious gas inflow pipe
154: Clean gas discharge pipe
152, 155: a first valve, a second valve
160: purge gas supply module

Claims (6)

An inner upper portion formed with a combustion chamber into which harmful gas flows and is burnt;
Wherein the combustion chamber is provided at a lower inner side portion of the main body below the combustion chamber and is divided into a plurality of zones radially with respect to the center of the combustion chamber and at least one of the plurality of zones passes through the combustion chamber , One or more of the plurality of the zones through which the noxious gas does not pass is discharged through the clean gas generated by the combustion of the noxious gas in the combustion chamber and is discharged through the one zone in which the noxious gas and the clean gas do not pass A heat storage member through which the purge gas passes and is introduced into the combustion chamber together with the noxious gas;
A plurality of noxious gas inflow tubes provided corresponding to the number of the zones and each having an upper end communicating with the zone side and supplying the noxious gas into the zone to introduce the noxious gas into the combustion chamber;
A plurality of first valves respectively installed in the noxious gas inflow pipes and independently opening and closing the noxious gas inflow pipes;
A plurality of clean gas discharge pipes provided so as to correspond to the number of the spaces and each having an upper end communicating with the space side and guiding the clean gas generated in the combustion chamber to be discharged to the outside through the space;
A second valve installed in the clean gas discharge pipe and independently opening and closing the clean gas discharge pipe;
And a purge gas supply module installed on a lower surface of the main body on the side of the heat storage member, for supplying a purge gas into one of the spaces and introducing the purge gas into the combustion chamber,
A first purge hole communicating with the region is formed on a lower surface of the main body on the side of the heat storage member,
The purge gas supply module includes:
A purge gas storage tank in which an open upper surface is coupled to a lower surface of the main body on the side of the heat storage member to receive the first purge hole and in which purge gas is stored;
And a second purge hole communicating with the first purge hole communicating with the region through which the noxious gas and the clean gas do not pass among the plurality of first purge holes as it rotates, And a rotary plate having a purge hole formed therein. delete The method according to claim 1,
Wherein a sealing member is provided on a lower surface of the main body so as to surround the first purge hole and seal the space between the first purge hole and the rotation plate. The method according to claim 1,
The noxious gas, the purge gas and the clean gas respectively pass through the zones sequentially one by one to circulate the zone,
The circulation directions of the noxious gas, the purge gas and the clean gas are the same,
The number of the zones is 2n (n is a natural number of 2 or more)
Wherein the number of the zones through which the noxious gas and the clean gas pass is (n-1), respectively. The method according to claim 1,
The noxious gas, the purge gas and the clean gas respectively pass through the zones sequentially one by one to circulate the zone,
The circulation directions of the noxious gas, the purge gas and the clean gas are the same,
The number of the zones is (2n-1) (n is a natural number of 2 or more)
Wherein the number of the zones through which the noxious gas and the clean gas pass is (n-1), respectively. The method according to claim 4 or 5,
The area at the end of the passage of the noxious gas through which the noxious gas passes and the clean gas through which the noxious gas passes are best defined by the circulation direction of the noxious gas and the clean gas among the above- Wherein the purge gas passes through the zone between the zones of the furnace.

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