KR101406023B1 - Regenerative Thermal Oxidizer Having Modularized Heat Storage Chambers Which Are Separated From The Combustion Chamber - Google Patents

Abstract

Disclosed is a regenerative thermal oxidizer having a modularized regenerative chamber separated from a combustion chamber. The regenerative thermal oxidizer according to the present invention comprises a combustion chamber and a regenerative chamber respectively formed in an individually separated space, and the regenerative chamber comprises more than two regenerative chambers formed in an individually separated space. The regenerative thermal oxidizer comprises the regenerative chamber separated from the combustion chamber, and a plurality of individually separated chambers, that is, a modularized group of chambers. Therefore, flowing harmful gases and discharged clean gases are prevented from being mixed, thus excellence in processing efficiency, control of operation capacity, and expansion of capacity can be facilitated.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a regenerative thermal oxidizer having regenerative thermal oxidizer having modular heat storage chambers separated from a combustion chamber,

More particularly, the present invention relates to a regenerative thermal oxidizer, and more particularly, to a regenerative thermal oxidizer which is configured such that the regenerator chamber is separated from the combustion chamber and the plurality of regenerator chambers are formed as independent spaces separated from each other, To a regenerative thermal oxidation apparatus having a regenerative chamber which is separated from the combustion chamber and modularized.

In factories, printing, and large-scale painting facilities that process products using chemicals, various odor substances and volatile organic compounds (VOC) are discharged to the atmosphere. These odors and VOCs are not only hazardous, but they are also a major cause of global warming, so they are strictly regulated in most countries, and Korea is also regulating its emission concentration by law.

Thus, odorous substances and VOCs are removed by activated carbon adsorption, catalytic combustion devices, high temperature combustion devices, etc. Recently, regenerative thermal oxidizers, which are easy to reduce fuel cost and to remove contaminants, have been widely used.

Patent Registration No. 0472222 (registered on 02.04.2005) discloses a regenerative combustion oxidizing apparatus. In this type of thermal oxidizing and oxidizing apparatus, a horizontal rotary plate is disposed between an upper fixed plate and a lower fixed plate, and a plurality of inflow perforations and a plurality of discharge perforations formed in the horizontal rotary plate are rotated by an inflow hole and / And the exhaust gas is made to coincide with the exhaust gas, thereby realizing the discharge of the clean gas generated by the inflow of the noxious gas and the combustion of the noxious gas.

Patent Publication No. 2012-0056446 (published on June 04, 2012) pointed out the problem of the above patented invention. That is, the patented invention is a large structure in which the horizontal rotary plate and the upper and lower fixed plates are both made of metal and have a diameter of about 3 m. During long-term rotation operation, the horizontal rotator rubs against the upper and lower fixed plates, Wear points out that the harmful gas causes leakage from the harmful gas inlet directly to the clean gas outlet. In order to solve such a problem, the present invention has proposed an air supply and discharge chamber having a circulation type valve and a regenerative combustion oxidizing apparatus having the same. In this regenerative combustion oxidizing apparatus, 2n + p air supply valves and the same number of exhaust valves are provided in an air supply and discharge chamber arranged under a heat storage tank divided into 2n + p regions, n of the air supply valves are opened, n The dog is closed, p performs the purge function, correspondingly the exhaust valves are closed n + 1, n open, and the operation is alternately done. With such a configuration and operation, it is said that such a regenerative combustion oxidizing apparatus has fundamentally solved the problem of leakage due to wear due to rotation.

However, a regenerative combustion oxidizing apparatus including a circulating-type valve requires at least one supply valve, one exhaust valve, and one purge valve in correspondence with one divided storage tank, so that the structure is complicated and maintenance There is a problem in that an excessive cost is required, and also there is a problem that such an air supply valve and an exhaust valve have a small capacity to be processed in the zone heat storage tank, resulting in a low efficiency of operation. In addition, although the problem caused by the lower disk was solved, the problem of incomplete combustion due to mixing of gas in the combustion chamber was not completely solved because the structure of the heat accumulator and the operation method were the same.

On the other hand, in the case of the thermal oxidation apparatuses having the above-mentioned structure, when the flow rate of the air decreases due to the change of the process operation condition or the operation rate, the amount of the heat energy to be heated must be increased. In addition, when the processing is performed at an initial capacity higher than the air volume reflected in the design, the processing efficiency is lowered. Therefore, it is not possible to actively cope with the increase in the air volume. Therefore, in order to process the increased air flow over the design air flow rate, a new facility must be installed. In such a case, the energy cost is wasted because the harmful gas less than the optimum design flow rate must be processed.

Patent Registration No. 10-0491869 discloses a regenerative thermal catalytic oxidation apparatus. In this apparatus, the supply and exhaust are regulated by a rotary tube in a conventional tower type regenerative thermal catalytic oxidation apparatus having a structure in which two or more oxidation towers are connected by a combustion chamber, thereby minimizing occurrence of mixing of supply gas and exhaust gas, A structure for continuously reversing the heat storage and heat radiation is achieved, thereby increasing the heat recovery rate.

Patent Registration No. 10-0588067 discloses a multi-stage oxidizing apparatus for volatile organic compounds, which is a multi-stage oxidizing apparatus for volatile organic compounds, which is produced by a four-way valve in a conventional tower-type regenerative thermal catalytic oxidation apparatus having a structure in which two or more oxidation columns are connected by a combustion chamber Controlling the direction of the inflow and outflow of the compound so as to control the inflow and outflow of the organic compound, thereby continuously reversing heat storage and heat radiation.

The above-mentioned regenerative thermal catalytic oxidation apparatus has an advantage of minimizing the mixing of the supply gas and the exhaust gas to increase the treatment efficiency. However, there is a problem that the above-mentioned problem, I could not solve it.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems of the prior art. Accordingly, it is an object of the present invention to provide a regenerative thermal oxidation apparatus which does not cause mixing of an air supply gas and an exhaust gas, and thus has an excellent treatment efficiency, and can easily control the operation capacity and expand the capacity.

It is another object of the present invention to provide a regenerative thermal oxidation apparatus which has a dead zone for a thermal storage material to be used and thus has a high efficiency of using a thermal storage material, thereby saving installation cost and capable of manufacturing equipment with a small volume.

Other objects and other advantages of the present invention will be apparent from the following detailed description of the invention.

According to an aspect of the present invention, there is provided a regenerative thermal oxidation apparatus having a regenerative chamber separated from a combustion chamber and modularized. The regenerative thermal oxidizer of the present invention includes a regenerative chamber filled with a combustion chamber and a regenerator. The combustion chamber and the regenerative chamber are formed by independent spaces separated from each other, and the regenerative chamber is composed of two or more regenerative chambers formed by independent spaces separated from each other. The regenerative thermal oxidation apparatus further includes a noxious gas supply pipe, a preheating noxious gas supply pipe, a clean gas discharge pipe, and a heat exchange clean gas discharge pipe. Wherein the noxious gas supply pipe is for supplying noxious gas to the regenerative chamber and is connected to each of the regenerative chambers, and the preheated noxious gas supply pipe is for connecting the regenerative chamber and the combustion chamber to each other, And the clean gas discharge pipe connects the combustion chamber and each of the regenerative chambers, wherein the noxious gas is burned in the combustion chamber, and the noxious gas is preheated in the regenerative chamber and then supplied to the combustion chamber. Wherein the clean gas discharged from the combustion chamber accumulates heat in the regenerative chamber by heat exchange in the regenerative chamber, and after the gas is cooled, the purified gas is discharged to the outside And is connected to each of the heat storage rooms. Valves are provided in the noxious gas supply pipe, the preheated noxious gas supply pipe, the clean gas discharge pipe, and the heat exchange clean gas discharge pipe connected to the respective heat storage chambers.

Wherein the regenerative thermal oxidizer further comprises a purge gas supply line for supplying purge gas to the regenerator and connected to each of the regenerator chambers, The purge gas supply pipe is provided with a valve, and the regenerative thermal oxidizer preferably includes three or more regenerative chambers.

Wherein the regenerative thermal oxidation apparatus supplies the noxious gas to at least one regenerative chamber of the regenerative chamber and supplies the purge gas to at least one regenerative chamber to which the noxious gas is not supplied, The clean gas is supplied to the combustion chamber and the noxious gas is burned to generate the clean gas. Then, the clean gas is supplied to the regenerative chamber other than the regenerative chamber to which the noxious gas and the purge gas are supplied, And a purge gas is supplied to a part or the whole of the regenerative chamber to which the noxious gas is supplied after a predetermined time, and a clean gas is supplied to a part or the whole of the regenerative chamber to which the purge gas is supplied, It is preferable to operate in such a manner that noxious gas is supplied to a part or the whole of the heat storage chamber to which the heat storage chamber is supplied.

Wherein each of the pipes comprises a main pipe and a branch pipe, the branch pipe connects the main pipe and the regenerative chamber, the valve is installed in the branch pipe, and the main pipe is connected to the branch pipe, It is preferable to connect the combustion chamber or connect the branch pipe to the noxious gas supply blower, the clean gas discharge blower or the purge gas supply blower.

Wherein the regenerative thermal oxidation apparatus further comprises a catalyst chamber formed by an independent space separated from the regenerative chamber at a downstream end of the clean gas discharge and a heat exchange unit at a downstream end of the catalyst chamber, And transferring heat energy to the noxious gas to preheat the noxious gas.

It is preferable that each of the heat storage chambers has a rectangular parallelepiped shape.

In the regenerative thermal oxidation apparatus, a catalytic layer may be provided in the combustion chamber to perform catalytic oxidation in the combustion chamber.

The regenerative thermal oxidation apparatus having the regenerative thermal oxidizer separated from the combustion chamber and separated from the combustion chamber according to the present invention is characterized in that the regenerative thermal oxidizer is separated from the combustion chamber and is formed as an independent space in which a plurality of regenerative chambers are separated from each other, And the cleaned gas to be discharged are not mixed with each other, the treatment efficiency is excellent, and the control of the operating capacity and the capacity expansion are easy.

Further, since the regenerative thermal oxidation apparatus of the present invention has a plurality of regenerative chambers separated from each other and having independent spaces, there is no dead zone for the regenerator, so the efficiency of using the regenerator is high, Equipment can be manufactured.

In addition, the regenerative thermal oxidizer of the present invention can partially repair during operation, and catalytic oxidation is performed simultaneously with thermal oxidation by connecting a catalytic oxidizer at the downstream of the regenerator to effectively treat the decomposable organic compounds and odor materials, The yarn can be formed into a rectangular parallelepiped shape, a cylindrical shape, a polygonal column shape, and can be constructed in a vertically stacked shape, thus saving space.

1 is a schematic view of a regenerative thermal oxidation apparatus according to an embodiment of the present invention.
2 is a schematic view of a regenerative thermal oxidation apparatus according to another embodiment of the present invention.
3 is a diagram showing an example of the expansion of the heat storage chamber in the regenerative thermal oxidation apparatus of the present invention.
4 is a diagram showing an example of capacity expansion of the combustion chamber in the regenerative thermal oxidation apparatus of the present invention.
5 is a schematic view illustrating a regenerative thermal oxidation apparatus according to another embodiment of the present invention.

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

1, a regenerative thermal oxidation apparatus 10 according to the present invention includes a combustion chamber 100 and a regenerative chamber 200. The regenerative chamber 200 is separated from the combustion chamber 100, 210 to 250 are formed into independent spaces separated from each other, that is, modularized. Therefore, as described below, the combustion chamber 100 and the regenerative chamber 200 are formed independently of each other, except that they are connected to each other by the pipe 300. Since the heat storage chamber 200 is separated from the combustion chamber 100 and has a modular structure, harmful gas flowing into the heat storage chamber 200 and clean gas discharged therefrom are not mixed with each other.

Specifically, the combustion chamber 100 and the regenerative chamber 200 are formed by independent spaces separated from each other. The combustion chamber 100 and the heat storage chamber 200 are preferably formed in a rectangular parallelepiped shape, and may be formed in a cylindrical shape or a polygonal column shape. With this configuration, as will be described later, the regenerative type (200) is easy to expand and the capacity of the combustion chamber (100) is easily expanded. A burner (not shown) is provided in the combustion chamber 100 to convert a harmful gas such as an organic compound introduced into the combustion chamber 100 into a clean gas.

A heat accumulating body (205) is provided in the heat accumulating chamber (200). The heat storage chamber 200 is formed by two or more heat storage chambers, preferably three or more heat storage chambers formed by separate independent spaces. In FIG. 1, the heat storage chamber 200 includes five heat storage chambers 210 to 250 As shown in Fig. Therefore, in the present specification, the regenerative chamber is generally referred to as a regenerative chamber 200, and when referring to each regenerative chamber, the regenerative chamber 210 is indicated, for example.

Since the heat storage chamber 200 is composed of a plurality of heat storage chambers 210 to 250 which are separated from each other and formed as an independent space, there is no dead zone for the heat storage body. Therefore, the efficiency of using the heat accumulator is high, so that the installation cost can be saved and the equipment can be manufactured with a small volume.

The regenerative thermal oxidation apparatus 10 includes a harmful gas supply pipe 310, a preheated harmful gas supply pipe 320, a clean gas discharge pipe 330, a heat exchange clean gas discharge pipe 340, and a purge gas supply pipe 350 .

The noxious gas supply pipe 310 supplies noxious gas to the heat storage chamber 200 and is connected to each of the heat storage rooms 210 to 250. The preheating and noxious gas supply pipe 320 connects the respective heat storage chambers 210 to 250 to the combustion chamber 100. The noxious gas supplied to the heat storage chamber 200 is preheated in the heat storage chamber 200, ). The clean gas discharge pipe 330 connects the combustion chamber 100 and each of the heat storage chambers 210 to 250 and discharges the clean gas formed by burning noxious gas in the combustion chamber 100 to the heat storage chamber 200 will be. The heat exchange clean gas discharge pipe 340 is for allowing the clean gas discharged from the combustion chamber 100 to accumulate heat in the heat storage chamber 200 by heat exchange in the heat storage chamber 200, And the heat storage chambers 210 to 250, respectively. The purge gas supply pipe 350 supplies purge gas to the heat storage chamber 200 and is connected to the heat storage rooms 210 to 250.

Each piping 300 is composed of main piping 312, 322, 332, 342, or 352 and branch piping 314, 324, 334, 344, or 354. The branched pipes 314, 324, 334, 344, or 354 connect the main pipes 312, 322, 332, 342, or 352 and the respective heat storage rooms 210 to 250. The branch pipes 314, 324, 334, 344 and 354 are connected to a harmful gas supply valve 410, a preheating harmful gas supply valve 420, a clean gas discharge valve 430, a heat exchange clean gas discharge valve 440, And a purge gas supply valve 450 are provided. The main piping 322 and 332 connect the branch piping 324 and 334 to the combustion chamber 100. The main piping 312 connects the branch piping 314 and the harmful gas supply blower 500, The main pipe 352 connects the branch pipe 354 to the purge gas supply blower 600. The main pipe 352 connects the branch pipe 344 to the purge gas supply blower 600. The branch pipe 342 connects the branch pipe 344 and the clean gas discharge blower

The regenerative thermal oxidation apparatus 10 of the present invention having such a configuration and structure is operated as follows.

The noxious gas is supplied to the heat storage chambers 210 and 220 through the noxious gas supply pipe 310. Only the noxious gas supply valves 411 and 412 in the noxious gas supply valve 410 are opened and the remaining noxious gas supply valves 413, 414 and 415 are in the closed state. At this time, the heat storage chambers 210 and 220 are in a state of heat accumulation by the previous process of discharging the clean gas. Therefore, the noxious gas supplied to the regenerative chambers 210 and 220 is preheated by the heat accumulated in the regenerative chambers 210 and 220.

The preheated noxious gas is supplied to the combustion chamber 100 through the preheating noxious gas supply pipe 320. To this end, the preheating noxious gas supply valves 421 and 422 in the preheating noxious gas supply valve 420 are opened, the preheating noxious gas supply valves 424 and 425 are closed, and the preheating noxious gas supply valve 423 are opened to supply the purge gas to the combustion chamber 100, as described below.

The noxious gas supplied to the combustion chamber 100 is converted into a clean gas when it is burnt in the combustion chamber 100. The clean gas thus changed is discharged to the heat storage chambers 240 and 250 through the clean gas discharge pipe 330. For this purpose, the clean gas discharge valves 434 and 435 of the clean gas discharge valve 430 are opened, and the clean gas discharge valves 431, 432 and 433 are closed.

The clean gas discharged into the regenerative chambers 240 and 250 is in a state of high heat due to combustion in the combustion chamber. The high thermal energy of the clean gas makes heat exchange with the regenerative chambers 240 and 250, 250). ≪ / RTI > The clean gas thus exchanged is cooled by such heat exchange. The clean gas cooled by the heat exchange is discharged to the outside through the heat exchange clean gas discharge pipe (340). For this purpose, the heat exchange clean gas discharge valves 444 and 445 of the heat exchange clean gas discharge valve 440 are opened, and the heat exchange clean gas discharge valves 441, 442 and 443 are closed.

On the other hand, the purge gas is supplied to the heat storage chamber 230 through the purge gas supply pipe 350. To this end, only the purge gas supply valve 453 of the purge gas supply valve 450 is opened, and the remaining purge gas supply valves 451, 452, 454 and 455 are closed. At this time, the noxious gas supply process is performed in the heat storage chamber 230, and noxious gas may remain as a result. If the process of discharging the clean gas immediately without supplying the residual noxious gas to the combustion chamber by the purge gas is performed, since the residual noxious gas is mixed in the clean gas, the discharged clean gas has higher pollution degree than the noxious gas discharge reference value Lt; / RTI > Therefore, the purge process is preferably performed.

The noxious gas remaining in the heat storage chamber 230 is supplied to the combustion chamber 100 through the preheated noxious gas supply pipe 320 on the preheated purge gas in the heat storage chamber 230. To this end, the preheating and noxious gas supply valve 423 of the preheating noxious gas supply valve 420 is opened to supply the purge gas to the combustion chamber 100.

After the above process is performed for a predetermined period of time, a noxious gas supply process is performed in the heat storage chambers 210 and 250, a purge gas supply process is performed in the heat storage chamber 220, and the heat storage chambers 230 and 240 The clean gas discharge process is performed. After such a process is also performed for a predetermined time, a noxious gas supply process is performed in the heat storage chambers 240 and 250, a purge gas supply process is performed in the heat storage chamber 210, The clean gas discharge process is performed. In this way, the purge process is performed while sequentially moving the heat from the heat storage chamber 230 to the heat storage chamber 220, the heat storage chamber 210, the heat storage chamber 250, and the heat storage chamber 240, Is sequentially performed in the heat storage chambers 210 and 220 while moving to the heat storage chambers 210 and 250, the heat storage chambers 250 and 240, the heat storage chambers 240 and 230, and the heat storage chambers 230 and 220, The clean gas discharging process is sequentially performed in the heat storage chambers 250 and 240 to the heat storage chambers 240 and 230, the heat storage chambers 230 and 220, the heat storage chambers 220 and 210, and the heat storage chambers 210 and 250 .

2, the regenerative thermal oxidizer 10 of the present invention includes a regenerative chamber 200 and a catalyst chamber 700, which are separated from each other by a separate space, The heat exchanging unit 800 may further include a heat exchanging unit 800 at a rear end of the chamber 700.

The catalyst chamber 700 is filled with a catalyst that is commonly used in the catalyst oxidizing apparatus. The clean gas generated by the combustion in the combustion chamber 100 can be more completely oxidized after passing through the regenerative chamber 200 by undergoing an additional catalytic oxidation process in the catalyst chamber 700. Such a catalytic oxidation process also oxidizes a small amount of noxious gas contained in the clean gas, thereby further reducing the amount of noxious gas contained in the clean gas discharged.

The clean gas passed through the catalyst chamber 700 still has a considerably high temperature. Therefore, the heat exchange unit 800 transfers the heat energy of the discharged clean gas to the supplied noxious gas to preheat the noxious gas. Since the structure of the heat exchanging means 800 is well known in the art, a detailed description thereof will be omitted.

As shown in FIG. 2, when the catalytic oxidation unit is connected to the rear end of the regenerative thermal oxidizer, it is possible to effectively treat the decomposable organic compounds and the odorous substances.

When the amount of the noxious gas to be supplied is small in operating the regenerative thermal oxidation apparatus shown in Figs. 1 and 2, only the combustion of the noxious gas supplied from the combustion chamber 100 is carried out until the preheating temperature required by the regenerator 200 It becomes difficult to raise it. In such a situation, the regenerative thermal oxidation apparatus according to the related art raises the temperature to the preheating temperature required in the regenerator by supplying additional fuel to the combustion chamber and performing combustion. However, this operation increases operating costs due to the consumption of additional fuel.

In the case of using the regenerative thermal oxidation apparatus of the present invention, for example, when the amount of the supplied noxious gas is reduced by half, for example, the noxious gas is supplied to the regenerator (210, 220) It is possible to change the operation condition to supply the noxious gas only to the regenerative chamber 210 under the operating conditions for supplying the combustion chamber 100 to the combustion chamber 100 after the preheating and supply the noxious gas to the regenerative chamber 220 . The clean gas discharged from the combustion chamber 200 is discharged only to one regenerative chamber of the regenerative chambers 240 and 250, for example, the regenerative chamber 240 and discharged to the other regenerative chamber, So that the operating conditions can be changed. That is, only the regenerative chambers 210, 230, and 240 are operated under the operating conditions in which all of the regenerative chambers 210 to 250 are operated, and the regenerative chambers 220 and 250 are changed to the non- , And you do not have to consume additional fuel to cope with this situation. Therefore, when the regenerative thermal oxidizer of the present invention is used, it is possible to actively cope with the amount of noxious gas supplied without additional fuel consumption, thereby reducing the operation cost.

Next, referring to FIG. 3, in the regenerative thermal oxidation apparatus of the present invention, the heat storage chamber 200 can expand the processing capacity by additionally providing additional heat storage chambers having the same size as necessary. FIG. 3 illustrates various types of thermal storage room expansion types.

Referring also to Fig. 4, in the regenerative thermal oxidizer of the present invention, the combustion chamber 100 can expand the processing capacity by expanding its size as required. FIG. 4 illustrates an example in which the size of the combustion chamber 100 is expanded. In FIG. 4, the middle joint shows that the wall of the combustion chamber is connected by welding.

As described above, in the regenerative thermal oxidation apparatus of the present invention, expansion of the heat storage chamber and expansion of the size of the combustion chamber facilitate expansion of the processing capacity.

Further, since the regenerative thermal oxidation apparatus of the present invention is modularized to form a plurality of regenerative chambers, it is possible to partially repair the regenerator during operation, and the regenerative chamber can be formed into a rectangular parallelepiped shape, a columnar shape or a polygonal column shape, And thus it is possible to save space.

In the regenerative thermal oxidation apparatus of the present invention, as shown in FIG. 5, the catalyst layer 110 may be provided in the combustion chamber 100 to perform catalytic oxidation in the combustion chamber 100. As described above, when the thermal accumulation is performed in the regenerative chambers 210 to 250 and the catalytic oxidation is performed in the combustion chamber 100, excellent thermal efficiency can be achieved while using a small amount of catalyst.

In a typical regenerative type catalytic oxidation apparatus in which a catalyst layer is formed in a regenerative chamber together with a regenerator, a catalytic amount of about 2.5 to 3 times that of a catalyst used for catalytic oxidation is used. Specifically, in a conventional regenerative catalytic oxidation apparatus, in the regenerating chamber to be supplied, the supply gas is preheated by heat exchange with the regenerator, but is not catalytically burnt by the catalyst, and the gas having a sufficiently high temperature through the combustion chamber is regenerated by the catalyst in the regenerator The catalyst is burned. Also, catalytic oxidation by the catalyst is difficult to be achieved in the regenerating chamber to which the purge gas is supplied. Therefore, since the catalyst attached to the regenerator before entering the combustion chamber does not substantially contribute to the catalytic oxidation, a waste of the catalyst inevitably occurs in a conventional regenerative catalyst oxidizer. On the other hand, in a conventional heat exchange type catalytic oxidation apparatus in which catalytic oxidation by a catalyst is performed by heating up to the activation temperature of the catalyst before the catalyst layer, all the catalysts contribute to the catalytic oxidation, so that there is no waste of the catalyst but the thermal efficiency is poor.

The present invention is characterized in that the catalyst layer 110 is formed in the combustion chamber 100 in the regenerative thermal oxidation apparatus in which the regenerative chambers 210 to 250 and the combustion chamber 100 are combined, So that excellent heat efficiency can be achieved.
<Others>
[National R & D Project Supporting the Invention]
[Assignment number] 2013000110003
[Ministry of Environment] Ministry of Environment
[Research Management Institution] Korea Environment Industrial Technology Institute
[Research Project] Next-generation eco-innovation technology development project
[Project title] Demonstration of harmful waste gases (VOCs, odorous substances) and white smoke simultaneously from semiconductor and VOC emissions process
[Organizer] Yiwoo E & T Co., Ltd.
[Period of research] 2013. 05. 01. ~ 2014. 03. 31.

10: regenerative thermal oxidation apparatus 100: combustion chamber
110: catalyst layer
200, 210, 220, 230, 240, 250: heat storage chamber 205:
300: piping 310: noxious gas supply piping
320: Preheating noxious gas supply pipe 330: Clean gas discharge pipe
340: Heat exchange clean gas exhaust pipe 350: Purge gas supply pipe
312, 322, 332, 342, 352: main piping 314, 324, 334, 344, 354:
400: Valve
410, 411, 412, 413, 414, 415:
420, 421, 422, 423, 424, 425: Preheating harmful gas supply valve
430,431,432,433,434,435: Clean gas discharge valve
440,441,442,443,444,445: Heat exchange clean gas discharge valve
450, 451, 452, 453, 454, 455: purge gas supply valve
500: Noxious gas supply blower 600: Purge gas supply blower
700: catalyst chamber 800: heat exchange means

Claims (7)

A regenerative thermal oxidation apparatus comprising a regenerative chamber filled with a combustion chamber and a regenerator,
Wherein the combustion chamber and the regenerative chamber are formed by independent spaces separated from each other, and the regenerative chamber is constituted by two or more regenerative chambers formed by independent spaces separated from each other,
The regenerative thermal oxidation apparatus further comprises a noxious gas supply pipe, a preheating noxious gas supply pipe, a clean gas discharge pipe, and a heat exchange clean gas discharge pipe,
Wherein the noxious gas supply pipe is for supplying noxious gas to the regenerative chamber and is connected to each of the regenerative chambers, and the preheated noxious gas supply pipe is for connecting the regenerative chamber and the combustion chamber to each other, And the clean gas discharge pipe connects the combustion chamber and each of the regenerative chambers, wherein the noxious gas is burned in the combustion chamber, and the noxious gas is preheated in the regenerative chamber and then supplied to the combustion chamber. Wherein the clean gas discharged from the combustion chamber accumulates heat in the regenerative chamber by heat exchange in the regenerative chamber, and after the gas is cooled, the purified gas is discharged to the outside And is connected to each of the heat storage rooms,
Characterized in that a valve is provided in the noxious gas supply pipe, the preheating noxious gas supply pipe, the clean gas discharge pipe and the heat exchange clean gas discharge pipe connected to the respective heat storage chambers, / RTI &gt; The method according to claim 1,
Wherein the regenerative thermal oxidizer further comprises a purge gas supply line for supplying purge gas to the regenerator and connected to each of the regenerator chambers, Wherein the purge gas supply pipe is provided with a valve, and the regenerative thermal oxidizer includes three or more regenerative chambers. 3. The method of claim 2,
Wherein the regenerative thermal oxidation apparatus supplies the noxious gas to at least one regenerative chamber of the regenerative chamber and supplies the purge gas to at least one regenerative chamber to which the noxious gas is not supplied, The clean gas is supplied to the combustion chamber and the noxious gas is burned to generate the clean gas. Then, the clean gas is supplied to the regenerative chamber other than the regenerative chamber to which the noxious gas and the purge gas are supplied, And a purge gas is supplied to a part or the whole of the regenerative chamber to which the noxious gas is supplied after a predetermined time, and a clean gas is supplied to a part or the whole of the regenerative chamber to which the purge gas is supplied, Is supplied to a part or all of the regenerative chambers to which the noxious gas is supplied Thermal thermal oxidation device. 4. The method according to any one of claims 1 to 3,
Wherein each of the pipes comprises a main pipe and a branch pipe, the branch pipe connects the main pipe and the regenerative chamber, the valve is installed in the branch pipe, and the main pipe is connected to the branch pipe, Wherein the branch pipes are connected to the combustion chamber, or the branch pipe is connected to the harmful gas supply blower, the clean gas discharge blower or the purge gas supply blower. 4. The method according to any one of claims 1 to 3,
Wherein the regenerative thermal oxidation apparatus further comprises a catalyst chamber formed by an independent space separated from the regenerative chamber at a downstream end of the clean gas discharge and a heat exchange unit at a downstream end of the catalyst chamber, Wherein the thermal energy is transferred to the supplied noxious gas to preheat the noxious gas. 4. The method according to any one of claims 1 to 3,
Wherein each of the heat storage chambers has a rectangular parallelepiped shape. 4. The method according to any one of claims 1 to 3,
Wherein a catalytic layer is provided in the combustion chamber to perform catalytic oxidation in the combustion chamber.

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