KR102382966B1 - The thermal oxidizer and catalytic oxidizer - Google Patents

Abstract

The present invention includes: a gas supply unit for supplying gas; a chamber having an inner space; a heat storage member disposed in the inner space and having a flow path for a gas flow; and an inner piping module passing through the heat storage member and connected to the gas supply unit, thereby improving harmful gas processing performance and heat recovery rates.

Description

Thermal storage oxidation device and catalytic oxidation device

The present invention relates to a thermal storage oxidation device and a catalytic oxidation device, and more particularly, to a thermal storage oxidation device and a catalytic oxidation device having a simple structure, reducing installation cost, and improving harmful gas treatment performance and heat recovery rate.

A regenerative combustion oxidation device refers to a device that incinerates and removes volatile organic compounds and odorous gases. The regenerative combustion oxidation device includes a thermal storage member to recover heat.

A conventional regenerative combustion oxidation device includes a chamber, a tube disposed inside the chamber, and a heat storage ball or three heat storage balls filling the space between the tube and the chamber. The noxious gas is heated while flowing along the tube. After burning at the bottom of the tube, it is discharged through the heat storage balls (or heat storage cells). At this time, the heat storage ball absorbs heat from the combustion gas and stores heat. However, when the heat storage balls are stacked, a clogging phenomenon occurs. In addition, the heat storage ball causes a pressure loss of the discharged gas. In addition, since only the heat storage balls adjacent to the tube transfer heat to the tube, there is a problem in that the heat recovery rate is lowered.

A regenerative combustion oxidation apparatus according to another prior art includes a chamber, a heat storage member disposed inside the chamber, and a gas distribution unit for supplying gas to the chamber, and the chamber includes a plurality of chambers (combustion chambers). The gas distribution unit regulates gas supply and discharge to a plurality of chambers (combustion chambers). In the case of the prior art of distributing gas to a plurality of rooms, installation and management are difficult because the equipment is complicated. Also, the installation cost is high. Also, in the process of repeatedly supplying and discharging gas to and from a plurality of rooms, a problem in which the heat storage member is clogged may occur.

An embodiment of the present invention aims to provide a thermal storage oxidation device and a catalytic oxidation device that have a simple structure and improve a harmful gas treatment performance and a heat recovery rate while reducing installation costs.

In order to achieve the above object, the thermal storage oxidation apparatus according to an embodiment of the present invention includes a gas supply unit for supplying gas, a chamber having an internal space, a thermal storage member disposed in the internal space, and having a flow path for gas flow; and an internal pipe module passing through the heat storage member and connected to the gas supply unit.

According to the present invention, there is no need for a gas distribution device for distributing gas to a plurality of combustion chambers (rooms), the structure is simple, and manufacturing and installation costs are reduced. In addition, there is no gas leakage or generation of untreated gas during the gas distribution process, so the harmful gas treatment performance is excellent.

In addition, unlike conventional thermal storage materials such as ball type, there is no clogging by foreign substances, so it is easy to manage.

In addition, since the equipment is simple, the failure rate is significantly reduced.

In addition, the existing technology in which the inflow and outflow of gas into a plurality of combustion chambers (rooms) is repeated has a clogging phenomenon due to the release of silica compound after combustion, but in the present invention, the gas flows along one path until the gas flows in and out. Clogging by foreign substances can be prevented.

In addition, the heat recovery rate can be increased.

1 is a conceptual diagram schematically illustrating a thermal storage oxidation apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram schematically illustrating the thermal storage oxidation device shown in FIG. 1 .
3 is a view schematically illustrating a coupling state of the heat storage member and the internal piping module shown in FIG. 2 .
4 is a plan view of the heat storage member and the internal piping module shown in FIG. 3 .
5 is a view schematically showing another embodiment of the internal pipe module shown in FIG.
6 is a view showing another embodiment of the thermal storage oxidation device shown in FIG.
7 is a diagram schematically illustrating an embodiment of the heat exchanger shown in FIG. 2 .
8 is a conceptual diagram schematically illustrating a catalytic oxidation apparatus according to an embodiment of the present invention.
9 is a view schematically showing the catalytic oxidation apparatus shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments described below are provided for illustrative purposes only to help a clear understanding of the present invention, and do not limit the scope of the present invention.

The shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining the embodiments of the present invention are exemplary, and therefore, the present invention is not limited to the matters shown in the drawings. Throughout the specification, like elements may be referred to by like reference numerals. In describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

When 'includes', 'have', 'consists of', etc. mentioned in this specification are used, other parts may be added unless the expression 'only' is used. When a component is expressed in the singular, the plural is included unless specifically stated otherwise. In addition, in interpreting the components, it is interpreted as including an error range even if there is no separate explicit description.

In the case of a description of the positional relationship, for example, when the positional relationship of two parts is described as 'on', 'on', 'on', 'beside', etc., 'right' Alternatively, unless the expression 'directly' is used, one or more other parts may be positioned between the two parts.

Spatially relative terms "below, beneath", "lower", "above", "upper", etc. are one element or component as shown in the drawings. and can be used to easily describe the correlation with other devices or components. The spatially relative terms should be understood as terms including different orientations of the device during use or operation in addition to the orientation shown in the drawings. For example, when an element shown in the figures is turned over, an element described as "beneath" or "beneath" another element may be placed "above" the other element. Accordingly, the exemplary term “below” may include both directions below and above. Likewise, the exemplary terms “above” or “on” may include both directions above and below.

In the case of a description of a temporal relationship, for example, 'immediately' or 'directly' when a temporal relationship is described with 'after', 'following', 'after', 'before', etc. It may include cases that are not continuous unless the expression "

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish one component from another. Accordingly, the first component mentioned below may be the second component within the spirit of the present invention.

The term “at least one” should be understood to include all possible combinations from one or more related items. For example, the meaning of “at least one of the first, second, and third items” means each of the first, second, or third items as well as two of the first, second, and third items. It may mean a combination of all items that can be presented from more than one.

Each feature of the various embodiments of the present invention may be partially or wholly combined or combined with each other, technically various interlocking and driving are possible, and each embodiment may be implemented independently of each other or may be implemented together in a related relationship. may be

1 is a conceptual diagram schematically illustrating a thermal storage oxidation apparatus 1 according to an embodiment of the present invention, FIG. 2 is a diagram schematically illustrating the thermal storage oxidation apparatus 1 shown in FIG. 1, and FIG. 3 is It is a view schematically showing the coupling state of the heat storage member 30 and the internal piping module 40 shown in FIG. 2 , and FIG. 4 is a plan view of the thermal storage member 30 and the internal piping module 40 shown in FIG. 3 . and FIG. 5 is a diagram schematically illustrating another embodiment of the internal piping module 40 shown in FIG. 3 .

1 to 5, the thermal storage oxidation device 1 according to an embodiment of the present invention is to improve the harmful gas processing performance and heat recovery rate. To this end, the thermal storage oxidation apparatus 1 according to an embodiment of the present invention includes a gas supply unit 10 , a chamber 20 , a thermal storage member 30 and an internal piping module 40 . Here, the gas includes harmful gases such as volatile organic compounds (VOCs).

The gas supply unit 10 supplies gas. The chamber 20 has an internal space. The heat storage member 30 is disposed in the inner space. The heat storage member 30 has a flow path for gas flow. The internal piping module 40 passes through the heat storage member 30 . The internal pipe module 40 is connected to the gas supply unit 10 to receive gas. At least a portion of the internal piping module 40 is inserted into the heat storage member 30 . That is, the heat storage member 30 surrounds at least a portion of the internal piping module 40 .

The internal piping module 40 defines a first flow path F1 for guiding the flow of gas. The gas introduced from the gas supply unit 10 flows along the first flow path F1. The heat storage member 30 defines a second flow path F2 . That is, the heat storage member 30 has a second flow path F2. The gas discharged from the internal piping module 40 may flow along the second flow path F2. The heat storage member 30 recovers heat from the gas flowing through the second flow path F2 and stores heat. The gas flowing along the first flow path F1 of the internal pipe module 40 is heated by the heat storage member 30 . Thereby, the heat recovery rate can be improved.

In an embodiment, the internal pipe module 40 includes a gas injection pipe 400 and a pipe member 410 . The gas injection pipe 400 is connected to the gas supply unit 10 . The gas injection pipe 400 receives gas from the gas supply unit 10 . The gas injection pipe 400 is disposed to pass through the chamber 20 . The piping member 410 is connected to the gas injection pipe 400 . The piping member 410 is disposed to penetrate the heat storage member 30 . That is, the pipe member 410 is inserted into the heat storage member 30 and is surrounded by the heat storage member 30 . One or a plurality of piping members 410 may be disposed. The gas supply unit 10 may include an air supply fan 100 and an air supply pipe 110 . The gas is blown by the air supply fan 100 . The air supply pipe 110 is disposed outside the chamber 20 and is connected to the internal pipe module 40 .

The internal piping module 40 may further include a gas diffusion tank 420 . The gas diffusion tank 420 may be disposed inside the chamber 20 . The gas diffusion tank 420 is connected to the gas injection pipe 400 and the pipe member 410 . The gas supplied from the gas injection pipe 400 may be accommodated in the gas diffusion tank 420 . The gas accommodated in the gas diffusion tank 420 is supplied to the piping member 410 . When the plurality of piping members 410 are disposed, gas may be distributed to the plurality of piping members 410 through the gas diffusion tank 420 . The gas diffusion tank 420 may be disposed on the heat storage member 30 .

The thermal storage oxidation apparatus 1 according to an embodiment of the present invention may further include a burner or a heater 60 . A burner or heater 60 is disposed inside the chamber 20 . The burner 60 or the heater is disposed under the heat storage member 30 . The burner 60 or the heater may be disposed at an appropriate location inside the chamber 20 . The burner 60 or the heater may burn the gas discharged from the piping member 410 . The combusted combustion gas flows along the second flow path F2 of the heat storage member 30 . Accordingly, the combustion gas may flow from the lower side to the upper side of the heat storage member 30 .

The heat storage member 30 may be defined by an upper surface S1 , a lower surface S2 , and a side surface S3 . A plurality of heat storage members 30 may be stacked inside the chamber 20 . The heat storage member 30 may have a hexahedral shape. The shape of the heat storage member 30 is not limited. The heat storage member 30 may have a circular or sectoral shape in plan view.

2 to 4 , the pipe member 410 may extend from one surface of the heat storage member 30 toward the other surface. The piping member 410 has a first direction (X) from the upper surface (S1) to the lower surface (S2) of the heat storage member 30 and from one side (S3) of the heat storage member 30 to the other side (S3). It extends along at least one of the two directions (Y). For example, the pipe member 410 may extend from the upper surface S1 of the heat storage member 30 toward the lower surface S2 , and the first flow path F1 and the second flow path F2 may extend in parallel. Since the first flow passage F1 and the second flow passage F2 are parallel to each other, heat exchange is continuously performed along the length of the pipe member 20 . The plurality of pipe members 410 may be spaced apart from each other on a plane of the heat storage member 30 and extend in parallel with each other. Thereby, the heat recovery rate can be improved.

6 is a view showing another embodiment of the thermal storage oxidation device 1 shown in FIG.

5 and 6 , the pipe member 410 may extend from one side surface S3 of the heat storage member 30 toward the other side surface S3 . Accordingly, the first flow passage F1 and the second flow passage F2 are disposed to cross each other. Preferably, the first flow passage F1 and the second flow passage F2 may be orthogonal to each other. When the first flow path F1 and the second flow path F2 are perpendicular to each other, the piping member 410 is bent several times while going from the upper side to the lower side of the heat storage member 30 to pass through the heat storage member 30 several times. can Thereby, sufficient temperature rise of the gas can be ensured. In this case, the gas diffusion tank 420 may not be installed.

3 to 5 , the heat storage member 30 may include a partition wall portion 300 surrounded by a side surface S3. The side surface S3 defines a side surface of the heat storage member 30 . The partition wall part 300 is disposed inside the side surface S3. The partition wall part 300 defines a honeycomb structure. Accordingly, the second flow path F2 may be defined.

In an embodiment, the side surface S3 may include first to fourth side surfaces arranged in a rectangular shape in plan view. The partition wall part 300 may include a first partition wall 310 and a second partition wall 320 . The first partition wall 310 and the second partition wall 320 may be disposed to be orthogonal to each other. Thereby, a honeycomb structure can be defined. The first partition wall 310 may be parallel to any one of the plurality of side surfaces S3 . The second partition wall 320 may be parallel to the other one of the plurality of side surfaces S3 . The first partition wall 310 and the second partition wall 320 may be disposed in plurality. Accordingly, the size of the second flow path F2 may be adjusted. In addition to this, the barrier rib part 300 may define a second flow path F2 of any one of a polygonal, a circular, and an oval in plan view by a plurality of barrier ribs.

The heat storage member 30 is made of a ceramic material. In addition, the piping member 410 is any one of a metal and a ceramic. The heat storage member 30 is made of a ceramic material, and may absorb heat and store heat. When the pipe member 410 is made of metal, thermal conductivity may be excellent. In addition, when the piping member 410 is a ceramic, heat can be stored by absorbing heat from the gas discharged after combustion. The heat storage member 30 recovers heat from the gas discharged through the second flow path F2 and transfers the heat to the piping member 410 . According to the present invention, the temperature of the gas is increased through heat exchange in the chamber 20 .

The pipe member 410 may have at least one of a circular shape, an elliptical shape, and a polygonal shape in cross-section (planar). For example, all of the plurality of piping members 410 may have the same cross-sectional shape. In addition, some of the plurality of piping members 410 may have any one shape of a circle, an ellipse, and a polygon, and the remainder of the plurality of piping members 410 may have another shape of a circle, an oval, and a polygon. In addition, the plurality of piping members 410 may all have different shapes in cross-section. Thereby, the heat recovery rate can be increased.

FIG. 7 is a diagram schematically illustrating an embodiment of the heat exchanger 50 shown in FIG. 2 .

2 and 7 , the heat exchanger 2 according to an embodiment of the present invention exchanges heat between the gas discharged from the chamber 20 and the gas supplied from the air supply fan 100 . The heat exchanger 2 includes a heat exchange heat storage member 500 and a supply pipe 510 . The gas blown by the air supply fan 100 is introduced into the supply pipe 510 . The supply pipe 510 defines a fourth flow path F4 for gas flow. A plurality of supply pipes 510 may be disposed.

The heat exchange heat storage member 500 defines a third flow path F3 for gas flow. The supply pipe 510 passes through the heat exchange heat storage member 500 . Accordingly, the heat exchange heat storage member 500 is disposed to surround the supply pipe 510 . The third flow path F3 of the heat exchange heat storage member 500 is connected to the chamber 20 . That is, the combustion gas discharged from the chamber 20 flows along the third flow path F3. At this time, the heat exchange heat storage member 500 absorbs heat from the combustion gas and stores heat. In addition, the gas flowing through the fourth flow path F4 may be preheated by receiving heat from the heat exchange heat storage member 500 . The heat exchange heat storage member 500 is a ceramic, and the above-described embodiment of the heat storage member 30 may be applied. In addition, the supply pipe 510 is a metal or ceramic, and the above-described embodiment of the pipe member 410 may be applied. Thereby, it is excellent in heat recovery rate.

Looking at the flow of gas, the gas supply unit 10 may supply gas at an atmospheric temperature (eg, 20 degrees Celsius). The gas supplied from the air supply fan 100 may be heated to 80 to 100 degrees Celsius through the heat exchanger 50 . The gas heated through the heat exchanger 50 flows through the first flow path F1 of the piping member 410 . At this time, the gas receives heat from the heat storage member 30 . The gas discharged from the piping member 410 may be heated to about 600 degrees Celsius. In the lower portion of the heat storage member 30 , the gas is burned at 800 degrees Celsius or more by a burner or a heater 60 . The combusted combustion gas flows into the lower side of the heat storage member 30 and flows through the second flow path F2. The combustion gas transfers heat to the heat storage member 30 while flowing through the second flow path F2 . The combustion gas discharged from the upper side of the heat storage member 30 may be cooled to about 250 to 300 degrees Celsius. The combustion gas may be deprived of heat while passing through the heat exchanger 50 and discharged to about 100 degrees Celsius.

8 is a conceptual diagram schematically illustrating a catalytic oxidation apparatus 2 according to an embodiment of the present invention, and FIG. 9 is a diagram schematically illustrating the catalytic oxidation apparatus 2 illustrated in FIG. 8 .

8 and 9 , the catalytic oxidation apparatus 2 according to an embodiment of the present invention may include a gas supply unit 10 , a chamber 20 , a catalyst member 30 and an internal pipe module 40 . there is. In addition, the catalytic oxidation device 2 may further include a heat exchanger 50 and a heater 60 or a burner. The gas supply unit 10 supplies gas. The chamber 20 has an internal space. The catalyst member 30 is disposed in the inner space and has a flow path for gas flow. The internal pipe module 40 passes through the catalyst member 30 and is connected to the gas supply unit 10 .

The gas supplied from the gas supply unit 10 flows into the internal pipe module 40 . The internal piping module 40 defines a first flow path F1. The gas is heated by receiving heat from the catalyst member 30 while flowing through the first flow path F1 . The gas discharged from the lower side of the catalyst member 30 may be heated by the heater 60 to increase the temperature to a sufficient temperature. Thereafter, the gas flows along the second flow path F2 of the catalyst member 30 . The catalyst member 30 defines a second flow path F2 for gas flow. The gas is oxidized by the catalyst member 30 while flowing through the second flow path F2 . In addition, the catalyst member 30 may receive heat from the gas flowing through the second flow path F2 . The gas discharged from the catalyst member 30 may be discharged to the outside of the chamber 20 .

Here, in the case of the gas supply unit 10 , the chamber 20 , and the internal piping module 40 , the embodiments of the gas supply unit 10 , the chamber 20 , and the internal piping module 40 described in FIGS. 1 to 7 are applied. can In addition, the embodiment of the heat storage member 30 described with reference to FIGS. 1 to 7 may be applied, except that the catalyst member 30 is a metal material including platinum, palladium, or the like. Of course, contradictory cases may be excluded.

In addition, the heat exchanger 50 exchanges heat between the gas discharged from the chamber 20 and the gas supplied from the gas supply unit 10 . Accordingly, the gas supplied from the gas supply unit 10 to the internal piping module 40 can be preheated. The heater 60 may be disposed at a suitable location below the chamber 20 . In the case of the heat exchanger 50, the embodiment of the heat exchanger 50 described with reference to FIGS. 1 to 7 may be applied. In addition, in the case of the heater 60, the embodiment of the burner 60 described with reference to FIGS. 1 to 7 may be applied. Of course, contradictory cases may be excluded.

Although the invention made by the present inventors has been described in detail according to the above embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist of the present invention.

1: thermal storage oxidation device
2: Catalytic Oxidizer
10: gas supply unit
100: air supply fan
110: air supply pipe
20: chamber
30: heat storage member / catalyst member
300: bulkhead
40: internal piping module
400: gas injection pipe
410: piping member
420: gas diffusion tank
50: heat exchanger
60: burner/heater

Claims (7)

a gas supply unit for supplying gas;
a chamber having an inner space;
a heat storage member disposed in the inner space and having a gas flow path; and
It passes through the heat storage member and includes an internal pipe module connected to the gas supply,
The internal pipe module has a first flow path for guiding the gas flowing in from the gas supply unit,
The heat storage member has a second flow path for guiding the gas discharged from the first flow path,
The internal pipe module is disposed inside the chamber and is connected to a gas supply unit disposed outside the chamber to guide the incoming gas,
The internal piping module is inserted into the thermal storage member and surrounded by the thermal storage member. delete The method of claim 1,
The internal piping module is
a gas injection pipe connected to the gas supply unit and receiving gas from the gas supply unit; and
A thermal storage oxidation device connected to a gas injection pipe and including at least one pipe member passing through the thermal storage member. The method of claim 1,
a heat exchanger for exchanging heat between the gas discharged from the chamber and the gas supplied from the gas supply unit; and
The thermal storage oxidation device further comprising a burner or a heater disposed below the thermal storage member. The method of claim 1,
The heat storage member is defined as an upper surface, a lower surface and a side surface,
The piping member extends along at least one of a first direction from an upper surface to a lower surface of the heat storage member and a second direction from one side of the heat storage member toward the other side. a gas supply unit for supplying gas;
a chamber having an inner space;
a catalyst member disposed in the inner space and having a gas flow path; and
It passes through the catalyst member and includes an internal pipe module connected to the gas supply,
The internal pipe module has a first flow path for guiding the gas flowing in from the gas supply unit,
The catalyst member has a second flow path for guiding the gas discharged from the first flow path,
The internal pipe module is disposed inside the chamber and is connected to a gas supply unit disposed outside the chamber to guide the incoming gas,
The internal pipe module is inserted into the catalyst member and surrounded by the catalyst member. 7. The method of claim 6,
a heat exchanger for exchanging heat between the gas discharged from the chamber and the gas supplied from the gas supply unit; and
A catalytic oxidation apparatus further comprising a heater or a burner disposed under the catalyst member.

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