阅读说明：本技术 蓄热燃烧氧化装置 (Heat accumulation combustion oxidation device ) 是由 金垠渊 金裕景 于 2019-03-11 设计创作，主要内容包括：本发明揭示蓄热燃烧氧化装置。在本发明的蓄热燃烧氧化装置中,当向设置有蓄热部件的本体的一个区域排出净化气体时,排出净化气体的区域的有害气体管被第一开闭单元封闭。而且,若通过第一开闭单元关闭有害气体管,则向第一开闭单元的外部强制排出残留于第一开闭单元的气体,因此,有害气体无法流入到排出净化气体的区域。由此,防止所排出的净化气体与有害气体混合,因此,产品的可靠性将得到提高。(The invention discloses a regenerative combustion oxidation device. In the heat-accumulating combustion oxidation apparatus of the present invention, when the purified gas is discharged to one region of the main body provided with the heat-accumulating member, the harmful gas pipe in the region where the purified gas is discharged is closed by the first opening/closing means. Further, when the first opening/closing means closes the harmful gas pipe, the gas remaining in the first opening/closing means is forcibly discharged to the outside of the first opening/closing means, and therefore the harmful gas cannot flow into the region where the purified gas is discharged. Thereby, the discharged purge gas is prevented from being mixed with the harmful gas, and thus, the reliability of the product will be improved.)

1. A regenerative combustion oxidation device is characterized in that,

the method comprises the following steps:

a body, the upper part of the inside is a combustion chamber for the harmful gas to flow in and burn, and the lower part of the inside is divided into a plurality of areas;

heat storage members provided in the regions of the main body, respectively, for storing heat;

a harmful gas pipe, the upper side of which is communicated with the area of the body respectively, and the harmful gas flows into the combustion chamber through the heat storage component;

a purge gas pipe having an upper side communicating with the region of the main body, respectively, for guiding a purge gas generated by combustion of a harmful gas in the combustion chamber and passing through the heat storage member through which the harmful gas does not pass, to be discharged to an outside of the main body;

a purge gas pipe, one side of which is communicated with the region of the body, respectively, and which guides purge gas to flow into the combustion chamber through the heat storage member through which harmful gas and purified gas do not pass; and

a first opening/closing unit, a second opening/closing unit, and a third opening/closing unit for opening/closing the harmful gas pipe, the purge gas pipe, and the purge gas pipe,

the upper side and the lower side of the first opening and closing unit are respectively communicated with the upper side part and the lower side part of the harmful gas pipe, a space is formed at the central part side,

when the first opening/closing means closes the harmful gas pipe, the gas in the space of the first opening/closing means is forcibly discharged to the outside.

2. The regenerative combustion oxidizer of claim 1,

the section of the harmful gas pipe is quadrangular,

the first opening/closing unit includes:

a frame having a hexahedral shape, the upper and lower surfaces of which are open and respectively communicated with the upper and lower portions of the harmful gas pipe, and having 1 open side surface and 3 side plates; and

an opening/closing member which is linearly movable in a state where the frame is inserted into and removed from the frame, communicates or blocks an upper surface side and a lower surface side of the frame, and forms a space sealed by a side plate of the frame inside,

when the upper surface side and the lower surface side of the frame are blocked by the opening/closing member, the gas existing in the space of the opening/closing member sealed by the side plate of the frame is forcibly discharged to the outside.

3. The regenerative combustion oxidizer of claim 2,

guide rails for guiding the linear motion of the opening/closing member are formed facing each other on the inner surface of the side plates facing each other of the frame,

the side surface of the opening/closing member is inserted into and supported by the guide rail.

4. The regenerative combustion oxidizer of claim 2,

an insertion track is formed on the inner surface of the side plate opposite to the open side surface of the frame,

when the upper surface side and the lower surface side of the frame are blocked by the opening and closing member, the insertion rail is inserted into the surface of the opening and closing member opposite to the insertion rail.

5. The regenerative combustion oxidizer of claim 2,

the opening/closing member includes:

a pair of opening and closing plates which are provided in the frame so as to be opposed to each other with a gap therebetween and are linearly movable; and

a connecting plate for connecting the pair of opening/closing plates and exposed to the outside of the frame,

when the upper surface side and the lower surface side of the frame are blocked by the opening/closing member, a space formed by the pair of opening/closing plates and the connecting plate is sealed by the frame.

6. The regenerative combustion oxidizer of claim 2,

the upper and lower surfaces of the frame are respectively communicated with an upper connecting pipe and a lower connecting pipe,

a groove-shaped insertion groove is formed on the upper surface and the lower surface of the frame, the insertion groove is inserted into the lower end of the upper connecting pipe and the upper end of the lower connecting pipe and is combined with the lower connecting pipe,

the upper connecting pipe and the lower connecting pipe are respectively communicated with the upper part and the lower part of the harmful gas pipe,

and a discharge hole formed in one side plate of the frame, the discharge hole being used for discharging gas remaining in the space of the opening/closing member sealed by the side plate of the frame to the outside.

Technical Field

The present invention relates to a regenerative combustion oxidizer having an improved structure of an opening/closing unit for controlling inflow of a harmful gas.

Background

The volatile organic compound is a hydrocarbon compound having a vapor pressure of 0.02psi or more or a boiling point of less than 100 ℃, and when coexisting with a nitrogen-containing compound in the atmosphere, it undergoes a photochemical reaction by the action of sunlight to generate ozone and a photochemical oxide. Volatile organic compounds pollute the environment and cause respiratory organ disorders and carcinogenic substances, substances harmful to the human body.

For this reason, industrial sites use various methods for removing harmful gases containing volatile organic compounds.

The volatile organic compound removing method is a combustion oxidation method for directly removing the volatile organic compound by combustion under the high temperature condition of about 800 ℃. In the case of the combustion oxidation method, since the volatile organic compounds are burned under high temperature conditions, the discharged purge gas is also in a high temperature state. However, since energy is wasted if the waste heat of the discharged purge gas cannot be used, a regenerative combustion oxidation apparatus that preheats the volatile organic compound flowing in after recovering the waste heat of the purge gas is generally used.

In the conventional regenerative combustion oxidizer disclosed in korean laid-open patent publication No. 10-1618718 (2016, 04, 29), the interior of the main body 110 is divided into a plurality of zones 121, 122, 123, 124, and 125, and the zones 121, 122, 123, 124, and 125 are respectively communicated with a harmful gas inflow pipe 151 for passing harmful gas, a purge gas discharge pipe 154 for passing purge gas, and a purge gas supply pipe 157 for passing purge gas. Each of the harmful gas inflow pipes 151, each of the purge gas discharge pipes 154, and each of the purge gas supply pipes 157 are independently opened and closed by a valve unit 160.

In the conventional regenerative combustion oxidizer as described above, there is a possibility that the harmful gas leaks between the inner surface of the harmful gas inflow pipe 151 and the edge surface of the opening/closing plate 165 of the valve unit 160, which are in contact with each other. Therefore, in a state where the harmful gas inflow pipe 151 is closed by the valve unit 160, the harmful gas may flow into the body 110 through the harmful gas inflow pipe 151, and thus the discharged purge gas may be discharged together with the harmful gas. Therefore, the reliability of the product will be reduced.

Disclosure of Invention

Technical problem

The object of the present invention is to provide a regenerative combustion oxidizer that can solve all the problems of the prior art as described above.

Another object of the present invention is to provide a regenerative combustion oxidizer which can improve the reliability of a product by preventing harmful gas from flowing into a main body through a harmful gas pipe when the harmful gas pipe through which the harmful gas passes is closed.

Technical scheme

The regenerative combustion oxidizer according to an embodiment of the present invention for achieving the above object includes: a body, the upper part of the inside is a combustion chamber for the harmful gas to flow in and burn, and the lower part of the inside is divided into a plurality of areas; heat storage members provided in the regions of the main body, respectively, for storing heat; a harmful gas pipe, the upper side of which is communicated with the area of the body respectively, and the harmful gas flows into the combustion chamber through the heat storage component; a purge gas pipe having an upper side communicating with the region of the main body, respectively, for guiding a purge gas generated by combustion of a harmful gas in the combustion chamber and passing through the heat storage member through which the harmful gas does not pass, to be discharged to an outside of the main body; a purge gas pipe, one side of which is communicated with the region of the body, respectively, and which guides purge gas to flow into the combustion chamber through the heat storage member through which harmful gas and purified gas do not pass; and a first opening/closing unit, a second opening/closing unit, and a third opening/closing unit for opening/closing the harmful gas pipe, the purge gas pipe, and the purge gas pipe, wherein an upper side and a lower side of the first opening/closing unit are respectively communicated with an upper side portion and a lower side portion of the harmful gas pipe, a space is formed at a central portion side, and when the harmful gas pipe is closed by the first opening/closing unit, gas existing in the space of the first opening/closing unit is forcibly discharged to the outside.

ADVANTAGEOUS EFFECTS OF INVENTION

In the regenerative combustion oxidizer according to the embodiment of the present invention, when the purge gas is discharged to the one region of the body provided with the heat storage member, the harmful gas pipe in the region where the purge gas is discharged is closed by the first opening/closing means. Further, when the first opening/closing means closes the harmful gas pipe, the gas remaining in the first opening/closing means is forcibly discharged to the outside of the first opening/closing means, and therefore the harmful gas cannot flow into the region where the purified gas is discharged. Thereby, the discharged purge gas is prevented from being mixed with the harmful gas, and thus, the reliability of the product will be improved.

Drawings

Fig. 1 is a perspective view of a regenerative combustion oxidizer according to an embodiment of the present invention.

Fig. 2 is a partially exploded perspective view of fig. 1.

Fig. 3 is a front sectional view of the essential part of fig. 1.

Fig. 4 is a schematic plan view of the lower body shown in fig. 2.

Fig. 5 is an exploded perspective view of the opening and closing unit shown in fig. 2.

Fig. 6 and 7 are sectional views taken along line a-a of fig. 5.

Description of reference numerals

110: body

120: heat storage member

141: harmful gas pipe

143: purified gas pipe

150: a first opening/closing unit

151: frame structure

153: opening and closing member

Detailed Description

It should be noted that in the present specification, in the process of giving reference numerals to the structural elements of the respective drawings, the same structural elements are given the same reference numerals as much as possible even if appearing in different drawings.

On the other hand, the meanings of the terms recited in the present specification can be explained as follows.

The singular expressions include the plural expressions, and the terms "first", "second", etc. are used only to distinguish two kinds of structural elements, so long as they are not explicitly expressed in the context, and the scope of the present invention is not limited to these terms.

It will be understood that the terms "comprises" or "comprising," etc., are intended to specify the presence or addition of one or more other features or integers, steps, acts, structural elements, components, or groups thereof.

It should be understood that the term "at least one" includes all combinations that may be revealed from more than one of the associated items. For example, the meaning of "at least one of first item, second item, and third item" means not only the first item, the second item, or the third item, but also a combination of all items that can be disclosed from more than 2 of the first item, the second item, and the third item.

It should be understood that the term "and/or" includes all combinations that may be revealed from more than one of the associated items. For example, the meaning of "a first item, a second item, and/or a third item" means not only the first item, the second item, or the third item, but also all items that can be disclosed from more than 2 of the first item, the second item, or the third item.

It should be understood that when an element is "connected" or "disposed" to another element, it can be directly connected or disposed to the other element, or the other element may be present therebetween. In contrast, when one structural element is "directly connected" to another structural element, the other structural element is not present therebetween. On the other hand, other expressions that describe the relationship between structural elements, i.e., "between.. and" directly between.. and "," adjacent to.. or "directly adjacent to.. and so on, should be interpreted identically.

On the other hand, when one component is "formed on, coupled to, or disposed on" another component, it should be construed that one component is additionally formed, coupled, or disposed with the other component, and may be integrally formed with the other component.

Hereinafter, a regenerative combustion oxidizer according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of a regenerative combustion oxidizer according to an embodiment of the present invention. Fig. 2 is a partially exploded perspective view of fig. 1. Fig. 3 is a front sectional view of the essential part of fig. 1.

As shown, the regenerative combustion oxidizer according to an embodiment of the present invention may include a body 110 having a space formed therein. A combustion chamber 111a into which harmful gas such as volatile organic compounds flows and is burned may be formed at an inner upper portion of the body 110, and a regenerator provided with the heat storage member 120 may be formed at an inner lower portion.

The body 110 may include an upper body 111 and a lower body 115 coupled to each other, the upper body 111 having a combustion chamber 111a therein, and the lower body 115 having a regenerator therein. In this case, a heating unit such as a burner for burning harmful gas may be provided at a portion of the upper body 111.

The regenerator inside the lower body 115 may be divided radially into a plurality of regions with respect to the center of the body 110. More specifically, the interior of the lower body 115 may be divided into 2n-1 (n is a natural number of 2 or more) regions, and may also be divided into 2n (n is a natural number of 2 or more).

When the inside of the lower body 115 is divided into 2n-1 regions, the harmful gas may pass through the n-1 regions. Further, the purge gas of the combustion chamber 111a generated by the combustion of the harmful gas may pass through n-1 zones, which are the same number as the number of zones through which the harmful gas passes, and a purge gas described later may pass through one zone.

Also, when the inside of the lower body 115 is divided into 2n regions, the harmful gas may pass through n-1 regions. Also, the purge gas of the combustion chamber 111a generated by the combustion of the harmful gas may pass through n-1 zones, which is the same number as the number of zones through which the harmful gas passes, and the purge gas may pass through one zone.

Regardless of the number of regions formed inside the lower body 115, the purge gas may pass through a region through which the harmful gas passes, and the purge gas may pass through a region through which the harmful gas and the purge gas do not pass.

In the regenerative combustion oxidizer according to the embodiment of the present invention, five regions 115a, 115b, 115c, 115d, and 115e (see fig. 4) in which the interior of the lower body 115 is divided into n — 3 are illustrated as an example.

A heat storage member 120 formed of a ceramic material may be provided in each of the regions 115a, 115b, 115c, 115d, 115e, and a harmful gas, a purge gas, and a purge gas are passed through the heat storage member 120.

The heat storage member 120 may be formed of a plurality of unit heat storage members 120a of a quadrangular barrel-shaped hollow body having an opened upper surface so that harmful gas, purge gas, and purge gas may pass through the heat storage member 120. That is, the plurality of unit heat storage members 120a are arranged in rows and columns, and the plurality of unit heat storage members 120a arranged in rows and columns may be stacked to form the heat storage member 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 a gas hole.

A partition 117 for dividing the interior of the lower body 115 into respective regions 115a, 115b, 115c, 115d, 115e may be provided in the interior of the lower body 115, and the partition 117 may be supported by the lower body 115. The lower surface of the thermal storage member 120 may be supported by a support plate (not shown) having a mesh structure and spaced apart from the lower surface of the lower body 115.

In the regenerative combustion oxidizer according to the embodiment of the present invention, the interior of the lower body 115 is divided into five regions 115a, 115b, 115c, 115d, and 115e, so that n is 3. Thus, the hazardous gas may pass through two zones, the purge gas may pass through two zones through which the hazardous gas does not pass, and the purge gas may pass through one zone through which the hazardous gas and the purge gas do not pass.

Preferably, the area through which the harmful gas passes and the area through which the purge gas passes are substantially symmetrical with respect to the center of the lower body 115. Also, the harmful gas, the purge gas, and the purge gas may sequentially move in the respective regions 115a, 115b, 115c, 115d, 115e and pass through the respective regions 115a, 115b, 115c, 115d, 115 e. That is, the harmful gas, the purge gas, and the purge gas may sequentially pass through the respective regions 115a, 115b, 115c, 115d, and 115e and rotate, and preferably, the circulation directions of the harmful gas, the purge gas, and the purge gas are the same.

A first gas tank 131 may be provided at an outer lower side of the body 110, and harmful gas is flowed into and purified gas is temporarily divided and stored into the first gas tank 131. The first gas tank 131 is configured such that the inside thereof is concentrically divided into an inner side and an outer side, and after harmful gas generated in an industrial site is stored in an outer portion of the first gas tank 131, the harmful gas can flow into the combustion chamber 111a through the heat storage members 120 of the respective regions 115a, 115b, 115c, 115d, and 115e, and the purge gas of the combustion chamber 111a generated by combustion of the harmful gas can be stored in an inner portion of the first gas tank 131 through the heat storage members 120 of the respective regions 115a, 115b, 115c, 115d, and 115e and then discharged to the outside. The harmful gas and the purge gas are divided to be stored in the inside of the first gas tank 131 and thus, are not mixed with each other.

The first gas tank 131 is capable of storing a harmful gas in an inner portion thereof and storing a purge gas in an outer portion thereof.

A harmful gas pipe 141 may be disposed between the body 110 and an outer portion of the first gas tank 131 such that the harmful gas stored in the outer portion of the first gas tank 131 flows into the combustion chamber 111a through the heat storage members 120 of the respective regions 115a, 115b, 115c, 115d, and 115 e. The number of the harmful gas pipes 141 corresponds to the number of the respective regions 115a, 115b, 115c, 115d, 115e, the upper end side may be communicated with the respective regions 115a, 115b, 115c, 115d, 115e side, respectively, and the lower end may be communicated with the outside of the first gas tank 131.

A purge gas pipe 143 may be provided between the body 110 and an inner portion of the first gas tank 131 so that the purge gas of the combustion chamber 111a is discharged to the inner portion of the first gas tank 131 through the heat storage members 120 of the respective regions 115a, 115b, 115c, 115d, 115 e. The number of the purge gas pipes 143 corresponds to the number of the respective regions 115a, 115b, 115c, 115d, and 115e, and the upper end portion side may communicate with the respective regions 115a, 115b, 115c, 115d, and 115e, and the lower end portion may communicate with the inner portion of the first gas tank 131.

A purge gas supply module, which may include a second gas tank 135 and a purge gas pipe 145, may be provided on the outer lower surface side of the body 110 such that the purge gas flows into the combustion chamber 111a through the heat storage members 120 of the respective regions 115a, 115b, 115c, 115d, 115 e.

The second gas tank 135 may have a ring shape so as to surround the harmful gas pipe 141 and the purge gas pipe 143. The purge gas pipes 145 correspond in number to the respective areas 115a, 115b, 115c, 115d, 115e, and one end side may be communicated with the respective areas 115a, 115b, 115c, 115d, 115e sides, respectively, and the other end may be communicated with the second gas tank 135.

According to the body 110, more specifically, communication pipes 147 communicating with the respective areas 115a, 115b, 115c, 115d, 115e may be provided inside the second gas tank 135, respectively. The respective communication pipes 147 may respectively communicate with the upper ends of the harmful gas pipes 141, the harmful gas pipes 141 and the respective regions 115a, 115b, 115c, 115d, 115e, and may respectively communicate with the upper ends of the purge gas pipes 143 and with one end of the purge gas pipe 145. Therefore, the harmful gas and the purge gas can flow into the respective regions 115a, 115b, 115c, 115d, and 115e through the communication pipe 147, and the purge gas in the combustion chamber 111a can be discharged to the communication pipe 147 through the respective regions 115a, 115b, 115c, 115d, and 115 e.

The harmful gas pipe 141, the purge gas pipe 143, and the purge gas pipe 145 may be provided with a first opening/closing means 150, a second opening/closing means 171, and a third opening/closing means 175, respectively, and the first opening/closing means 150, the second opening/closing means 171, and the third opening/closing means 175 may independently open/close the harmful gas pipe 141, the purge gas pipe 143, and the purge gas pipe 145, respectively.

Therefore, the harmful gas selectively flows into the combustion chamber 111a through the heat storage members 120 of the respective regions 115a, 115b, 115c, 115d, and 115e by the first opening and closing unit 150, the purge gas selectively flows out to the first gas tank 131 through the heat storage members 120 of the respective regions 115a, 115b, 115c, 115d, and 115e by the second opening and closing unit 171, and the purge gas selectively flows into the combustion chamber 111a through the heat storage members 120 of the respective regions 115a, 115b, 115c, 115d, and 115 e.

The harmful gas pipe 141, the purge gas pipe 143, and the purge gas pipe 145 may have a quadrangular cross-sectional shape.

Referring to fig. 1 to 4, the operation of the regenerative combustion oxidizer according to an embodiment of the present invention will be described. Fig. 4 is a schematic plan view of the lower body shown in fig. 2.

Thereafter, the toxic gas, the purge gas, and the purge gas circulate in the clockwise positive direction with reference to the center of the lower body 115, and sequentially pass through the heat storage members 120 provided in the respective regions 115a, 115b, 115c, 115d, and 115 e.

As shown in fig. 4, the inside of the lower body 115 is divided into 5 regions 115a, 115b, 115c, 115d, and 115e, and thus n is 3. Thus, the noxious gas and the purified gas are passed through two regions, respectively, and through symmetrical regions, respectively.

The first to third opening/closing means 150 to 175 are all in the closed state as the initial state.

In the initial state, the first opening/closing units 150a and 150b and the second opening/closing units 171c and 171d are adjusted to open the harmful gas pipes 141a and 141b and the purge gas pipes 143c and 143d, respectively, so that the harmful gas and the purge gas pass through the regions 115a and 115b and the regions 115c and 115d, respectively.

Therefore, the harmful gas flows into the combustion chamber 111a through the regions 115a and 115b, and the harmful gas flowing into the combustion chamber 111a moves along one side surface, the upper surface, and the other side surface of the combustion chamber 111a, is burned to be a purge gas, and is then discharged through the regions 115c and 115 d. In this case, the heat storage members 120 in the regions 115c and 115d store heat by exchanging heat with the purge gas.

In this state, when the third opening/closing unit 175e is opened, the purge gas flows into the region 115e through the purge gas pipe 145e, and thus the harmful gas remaining in the region 115e flows into the combustor 111a in the same direction as the purge gas. Therefore, the region 115e is in a purified state. In this case, it is preferable that the purge gas flows into the region 115e between the rearmost region 115a through which the harmful gas passes and the foremost region 115d through which the purge gas passes. The purge gas may be purified air.

When the region 115e is in a clean state, the third opening/closing unit 175e is closed. Thereafter, the purge gas pipe 143e is opened and the purge gas pipe 143c is closed by the second opening/closing unit 171e and the second opening/closing unit 171c, and the harmful gas pipe 141c is opened and the harmful gas pipe 141a is closed by the first opening/closing unit 150c and the first opening/closing unit 150 a. Therefore, the harmful gas flows into the combustion chamber 111a through the regions 115b and 115c, and the purge gas is discharged through the regions 115d and 115 e. The region 115e is in a state of being purified by the purge gas, and therefore, the purge gas discharged through the region 115e is not mixed with the harmful gas.

In this state, when the third opening/closing means 175a is opened, the purge gas flows into the region 115a through the purge gas pipe 145a, and therefore, the harmful gas remaining in the region 115a flows into the combustion chamber 111a together with the purge gas, and the region 115a is in a purified state.

Thereafter, the purge gas pipe 143a is opened and the purge gas pipe 143d is closed sequentially by the second opening/closing unit 171a and the second opening/closing unit 171d, and the harmful gas pipe 141d is opened and the harmful gas pipe 141b is closed by the first opening/closing unit 150d and the first opening/closing unit 150 b. Therefore, the harmful gas flows into the combustion chamber 111a through the regions 115c and 115d, and the purge gas is discharged through the regions 115e and 115 a. The region 115a is in a state of being purified by the purge gas, and therefore, the purge gas discharged through the region 115a is not mixed with the harmful gas.

By repeating the above-described operation, the harmful gas is discharged together with the purge gas, and the heat storage member 120 stores heat by the purge gas.

In the regenerative combustion oxidizer according to an embodiment of the present invention, the body 110 may have a polygonal shape, and the heat storage member 120 may have a shape corresponding to each of the regions 115a, 115b, 115c, 115d, and 115 e.

The harmful gas pipes 141 of the regions 115a, 115b, 115c, 115d, 115e where the purge gas is discharged are closed. That is, the harmful gas pipes 141 of the regions 115a, 115b, 115c, 115d, and 115e where the purge gas is discharged are closed by the first opening and closing unit 150. However, if the harmful gas leaks from the place where the harmful gas pipe 141 of the first opening/closing unit 150 is provided, the harmful gas can flow into the regions 115a, 115b, 115c, 115d, and 115e where the purge gas is discharged, and therefore, the purge gas can be discharged after being mixed with the harmful gas.

In the regenerative combustion oxidizer according to an embodiment of the present invention, in order to prevent the discharged purified gas from being mixed with the harmful gas, when the harmful gas pipe 141 is closed by the first opening/closing unit 150, the harmful gas remaining in the first opening/closing unit 150 may be forcibly discharged to the outside by leakage or the like.

The first opening/closing unit 150 has upper and lower sides communicating with upper and lower portions of the harmful gas pipe 141, respectively, and a sealed space is formed at a central portion side. Therefore, when the harmful gas pipe 141 is closed by the first opening and closing unit 150, the gas including the gas remaining in the sealed space of the first opening and closing unit 150 can be forcibly discharged to the outside.

Referring to fig. 3 to 7, the first opening and closing unit 150 will be described. Fig. 5 is an exploded perspective view of the opening and closing unit shown in fig. 2, and fig. 6 and 7 are sectional views taken along line "a-a" of fig. 5.

As shown, the first opening and closing unit 150 may include a frame 151 and an opening and closing part 153.

The frame 151 may have a hexahedral shape, and a sectional shape may correspond to that of the harmful gas pipe 141. The upper and lower surfaces of the frame 151 may be opened, and the upper and lower portions of the noxious gas pipes 141 may communicate with the opened upper and lower surfaces of the frame 151, respectively. Therefore, the upper and lower portions of the noxious gas pipes 141 communicate with each other via the frame 151.

The hexahedron has 4 side panels. However, in one embodiment of the present invention, the frame 151 has 3 side panels, and 1 side panel may be open.

The opening/closing member 153 is inserted into the frame 151 through the open side of the frame 151, and is linearly movable in a state of being inserted into and removed from the frame 151. Therefore, the opening and closing part 153 may communicate or block the upper and lower sides of the frame 151.

A space 153a sealed by the side surface of the frame 151 may be formed inside the opening and closing member 153, and if the upper surface side and the lower surface side of the frame 151 are blocked by the opening and closing member 153, the gas remaining in the space 153a of the opening and closing member 153 may be discharged to the outside of the frame 151.

The opening and closing part 153 may include an opening and closing plate 154 and a connection plate 155.

The pair of opening and closing plates 154 are opposed to each other with a gap therebetween, and are inserted into the open side surfaces of the frame 151 to be linearly movable in a state of being inserted into and removed from the frame 151. The connection plate 155 is positioned on an open side surface of the frame 151 to be exposed to the outside of the frame 151, and may be integrally connected to the pair of opening and closing plates 154. Therefore, when the opening/closing member 153 is inserted into the frame 151 to block the upper and lower portions of the frame 151, the space 153a of the opening/closing member 153 formed by the opening/closing plate 154 and the connecting plate 155 is sealed by the side surface of the frame 151. When the upper and lower portions of the frame 151 are blocked by the opening/closing member 153, the gas remaining in the space 153a of the sealed opening/closing member 153 is forcibly discharged to the outside.

On the inner surface of the side plates facing each other of the frame 151, guide rails 151a may be formed facing each other, and the guide rails 151a may be inserted into a space formed on both sides of the pair of opening and closing plates 154. Thus, the opening/closing plate 154 is inserted into the guide rail 151a and supported, and therefore the guide rail 151a guides and supports the linear motion of the opening/closing plate 154.

An insertion rail 151b may be formed at an inner face of a side plate of the frame 151 facing the open side of the frame 151. When the upper and lower surfaces of the frame 151 are closed by the shutter 153, the insertion rail 151b can be inserted into a space formed between the surfaces of the pair of shutter plates 154 facing the insertion rail 151 b. Therefore, the upper and lower sides of the frame 151 can be stably blocked by the opening and closing part 153.

The insertion rail 151b may be formed continuously with the guide rail 151 a.

A discharge hole 151c may be formed at one side plate of the frame 151, and when the upper and lower portions of the frame 151 are blocked by the guide rail 151a, the discharge hole 151c discharges gas existing in a space 153a of the opening and closing member 153 sealed by the side plate of the frame 151 to the outside. One side of the discharge hole 151c may communicate with the space 153a of the opening and closing part 153, and the other side may communicate with the pump 161.

Therefore, when the purge gas is discharged to the one regions 115a, 115b, 115c, 115d, and 115e formed in the body 110, the harmful gas pipe 141 of the region where the purge gas is discharged is closed by the first opening and closing unit 150. However, when the harmful gas pipe 141 is closed by the first opening/closing unit 150, the gas in the space 153a of the opening/closing member 153 sealed by the frame 151 is discharged to the outside of the first opening/closing unit 150 by the pump 161. Therefore, even if the harmful gas in the first gas tank 131 leaks through the contact portion between the harmful gas pipe 141 and the first opening/closing unit 150 or the contact portion between the plurality of members of the first opening/closing unit 150 and flows into the space 153a of the sealed opening/closing member 153, the harmful gas is discharged to the outside through the discharge hole 151c, and thus the harmful gas cannot flow into the regions 115a, 115b, 115c, 115d, and 115e where the purge gas is discharged. Therefore, the purge gas discharged from the body 110 to the first gas tank 131 side is prevented from being mixed with the harmful gas.

The first opening and closing unit 150 may further include an upper connection pipe 158 and a lower connection pipe 159.

The upper connection pipe 158 and the lower connection pipe 159 may communicate with the opened upper surface and the opened lower surface of the frame 151, respectively, and the upper connection pipe 158 and the lower connection pipe 159 may communicate with the upper portion and the lower portion of the harmful gas pipe 141, respectively.

In order to stably provide the upper connection pipe 158 and the lower connection pipe 159 in the frame 151, groove-shaped insertion grooves 151d into which the lower end portion of the upper connection pipe 158 and the upper end portion of the lower connection pipe 159 are respectively inserted and coupled may be formed on the upper surface and the lower surface of the frame 151.

A contact portion of the harmful gas pipe 141 and the upper connection pipe 158, a contact portion of the harmful gas pipe 141 and the lower connection pipe 159, a contact portion of the frame 151 and the upper connection pipe 158, a contact portion of the frame 151 and the lower connection pipe 159, and a contact portion of the frame 151 and the opening and closing part 153 may be sealed.

Unexplained reference numeral 165 of fig. 5 is a driving portion such as an air cylinder for linearly moving the opening and closing member 153. The second opening/closing unit 171 and the third opening/closing unit 175 may be the same as or similar to the first opening/closing unit 150.

In the regenerative combustion oxidizer according to an embodiment of the present invention, when purge gas is discharged to one of the regions 115a, 115b, 115c, 115d, and 115e of the body 110 in which the heat storage member 120 is provided, the harmful gas pipe 141 of the region 115a, 115b, 115c, 115d, and 115e from which purge gas is discharged is closed by the first opening/closing unit 150. When the harmful gas pipe 141 is closed by the first opening/closing means 150, the gas remaining in the first opening/closing means 150 is forcibly discharged to the first opening/closing means 150, and thus cannot flow into the regions 115a, 115b, 115c, 115d, and 115e where the purge gas is discharged. Thereby, the discharged purge gas is prevented from being mixed with the harmful gas.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and those skilled in the art to which the present invention pertains can make various substitutions, modifications and changes without departing from the ordinary skill in the art to which the present invention pertains. Therefore, the scope of the present invention is indicated by the claims to be described later, and in particular, all modifications and variations derived from the meaning and range of the claims and their equivalent concepts belong to the scope of the present invention.