KR101425634B1 - Regenerative combustion apparatus with rotary valve having improved sealing in switching flow direction - Google Patents

Abstract

The present invention relates to a regenerative combustion apparatus including a rotary valve with improved sealing at the time of switching a wind flow direction. According to the objective of the present invention, the level of a sealing plate installed at a lower portion of the regenerative combustion apparatus to maintain a gap from a rotary valve is automatically adjusted by a gel-type flowing sealant; and a purge air discharge structure of the rotary valve positioned at the lower portion of a diffuser plate and rotating is modified not to mix inflow air and exhaust gas. The regenerative combustion apparatus processing a volatile organic compound (VOC) includes a diffuser plate (110) which has a sealing plate (31) inserted into a sealing hole (113) formed in the top surface, and a leak blocking baffle (117) protruding from the bottom surface in a circumferential direction, and fills the sealing hole with a gel-type flowing sealant (32) to make the level of the sealing plate uniform; and an air sealing unit (131) which has fanwise sealing holes (111) formed in each lateral end of a dead zone (250) and a purge zone (260) in a longitudinal direction, and, in a circumferential direction, an air pocket (4023) with a plurality of fine purge holes (4022) arranged at a position opposite to the leak blocking baffle (117) to block leak gas.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a regenerative combustion apparatus having a rotary valve with improved sealing during a wind direction change,

The present invention relates to a regenerative combustion apparatus having a rotary valve with improved sealing during a wind direction change. More specifically, a sealing plate is inserted into a diffuser plate to automatically level the air, and purge air is discharged in both directions, To a regenerative combustion device having a sealing structure for preventing mixing of air and gas.

There are burning oxidation treatment methods and biological treatment methods as a method of treating volatile organic compounds (VOC) or harmful gas generated in the production process and each factory, but combustion oxidation treatment method is generally used.

As a combustion oxidation treatment method, there is a method of burning at a high temperature (about 800 ° C.) using a heat storage material or burning at a relatively low temperature (about 350 ° C.) by combining a heat storage material and a catalyst. At this time, since the burned gas is clean air having high heat, the waste heat is recovered and reused. As a method of recovering the waste heat, there is a method of using a general heat exchanger or a method of recovering the waste heat by using a heat storage material. In order to recover the waste heat efficiently, it is possible to recover the waste heat by using the heat storage material, .

The regenerative combustion device using heat storage material is divided into a chamber for storing heat and a chamber for radiating heat so as to burn the harmful gas. The noxious gas receives heat from the chamber to be heated and is heated to the combustion processing temperature, The heat storage chamber and the heat radiation chamber are continuously and periodically replaced with each other in such a manner that the heat storage material in the chamber for heat treatment is discharged and discharged after being processed and discharged.

As described above, in order for the regenerative chamber and the heat-radiating chamber to be continuously and periodically replaced, a valve is required to switch the direction of gas to be treated. Typically, there are a bed type and a cylindrical type. Particularly, the bed type is configured such that two or three air supply valves and three exhaust valves are provided in one bed, and the opening and closing are repeatedly performed in 1 to 2 minute intervals. However, due to the characteristics of this structure, it is possible to cause a leak problem in the case of a life span and deformation due to abrasion, and a pressure fluctuation occurs in the production process every time when it is converted into open and close, There is a serious problem in the operation due to the product failure.

Hereinafter, a conventional regenerative combustion device having a rotary valve will be described with reference to the accompanying drawings.

Figs. 8A to 8D are perspective views of a regenerative combustion apparatus in which a horizontal and vertical type rotary valve is mounted on a conventional quadrangular pillar and cylindrical combustion device, Figs. 9A and 9B are sectional views of Fig. 8A, And Fig. 10 is a plan view of the upper surface of the conventional rotary valve. Hereinafter, reference numerals for describing the conventional art may be different from those described in the present invention to be described later, and therefore reference should be made to the related drawings.

As shown in the drawings, the conventional rotary valve has a structure in which the heat storage layer 10 and the catalyst layer 20 are formed in a square shape so that the rectangular heat storage material and the catalytic material are stacked and arranged, and the outer shape is formed into a square column shape 8C and 8D, in which the heat accumulating layer 10 and the catalyst layer 20 are formed in a fan-like shape so that the burning apparatus 1 of Figs. 8A and 8B and the modified example of the fan heat accumulating material and the catalytic material are stacked and arranged, And a vertical or horizontal type air conditioning system is provided at the lower end of the air conditioning system 1 for separating and assembling the air conditioning system 1 for the purpose of miniaturization of equipment, improvement of exhaust gas treatment efficiency, and ease of maintenance.

The wind direction switching device is installed at a lower portion of the heat storage layer 10 of the regenerative type combustion device 1 and has a separation flow path 110 in which a large number of circles are arranged to discharge clean air, Wow; A separation wall 104 connected to the respective separation passage side and separated from the outer wall 101 and the separation chamber barrel 103 at regular intervals and a separation hole 102 formed in the separation chamber barrel 103 on the inner circumference (100); A separating partition 210 divided into a supply and an exhaust is formed in the interior of the separation chamber 100, and a peripheral portion of the separation partition 210 is formed at one end thereof, And a purge zone 260 is symmetrically formed on the side of the exhaust gas interface. The other side of the exhaust gas separator 210 has a circumference of the cylindrical structure opened at the exhaust side, And a valve supply case 211 in which a discharge mechanism 221 is formed and a supply mechanism 222 is formed by opening a circular plate of the cylindrical structure on the side of the remaining supply air. A power shaft (310) that provides a rotational force at a constant speed by a power unit (500) penetrating and connected to one side; A rotary valve 200 including a power shaft 300 surrounding the power shaft and having a purge air hole 401 at one end and a purge air outlet 403 at the other end purge zone 260; And a purge chamber 4 which surrounds the rotary valve and has an air supply chamber 2 in which an air supply duct 1a is formed, an exhaust chamber 3 in which an exhaust duct 1b is formed, and a purge air supply duct 400, .

The rotary valve 200 is formed by distributing an equally spaced partition 212 at equal intervals on the open end of one side of the rotary valve 200 and is provided at both ends of the valve exhaust case 211 of the rotary valve 200, A dead zone block 251 is formed in the dead zone 250 and a CR SEAL 252 is formed in the dead zone 250 by forming a leakage preventing FCDPR SEAL 215 on one side or left side surface of the valve- And a purge zone block 261 is formed on both sides of a purge air discharge port 403 formed at the center of the purge zone 260 so as to be provided with a CR SEAL 262 for sealing .

However, the conventional regenerative type combustion apparatus as described above is required to have a plurality of separation flow paths 110 which are isolated from the upper combustion device 1 and are complicatedly formed for supplying and exhausting the accumulated heat accumulating material. A separation wall 104 separated from the outer wall 101 and the separation chamber barrel 103 at regular intervals and a separation wall 103 formed at the separation chamber barrel 103 at the inner circumferential surface, And a rotary valve 200 rotating in the separation chamber 100 is provided with an equally spaced partition 212 at equally spaced intervals in a portion where one end portion is opened The rotary valve 100 is provided with a complicated structure, which complicates the design and requires a large amount of parts and cost for making such a structure.

In addition, the rotary valve having such a structure has a structural problem in that there may be a minute leakage in the FCDPR SEAL 215 formed to prevent leakage of noxious gas and to prevent mixing between supply and exhaust gas. That is, in the FCDPR SEAL 215 which is in sealing contact with the separation chamber barrel 103 and the exhaust chamber barrel 105, when the round-shaped FCDPR SEAL 215 is mounted without being intact, the separation chamber barrel 103 and the gap There is a structural problem that the supply and exhaust gas can be finely mixed in the upper and lower directions based on the FCDPR SEAL (215) when the rotary valve is rotated.

In addition, the conventional rotary valve is disadvantageous in that the sealing portion is worn by friction or thermal expansion causes the gap of the sealing portion to become larger or narrower than necessary by using a simple sealing method. If the gap is large, the untreated gas is mixed with the clean air and discharged to the atmosphere, which can cause environmental pollution. If the gap is narrowed below the required range, the problem of floating of the rotary valve due to the sealing portion may occur have.

In order to overcome such a problem, Korean Patent Application No. 10-2009-90138 (titled "Separation and Assembly Type Rotary Valve Directly Connected to the Upper Combustion Device and Capable of Absorbing Gap Deformation by Thermal Expansion" Regenerative combustion device).

When a rotary valve is rotated, the lower part of the combustion apparatus is directly contacted with the lower part of the rotary valve so that the rotary part is rotated. When the rotary part is rotated by thermal expansion, untreated noxious gas A bellows cylinder is provided below the rotary valve so as to maintain a proper gap for smooth rotation between the surface contact portions so as to apply a constant pressure in the upward direction.

However, despite the many advantages of the applicant's prior application, there are some problems. In other words, the diffuser plate and rotor diffuser, which are the main components of the rotary valve, are very important parts which serve as sealing and must be precisely machined and assembled, so that the manufacturing and processing steps are complicated, There is a problem that the price is high and most of the cost is occupied, so that it is not possible to provide a good quality product to the customer at a low price. In other words, the sealing part and the interface between the diffuser plate and the DEZ zone and the purge zone are required to be precisely processed and assembled, Precision parts are required, and manufacturing and processing are complicated, and processing machines limited to large-sized processing parts are expensive, occupy most of the cost, and delivery time is also long.

Also, the upper part of the diffuser plate should be sealed directly with the combustion device, and a gasket is provided at the partition of each chamber of the combustion device, and the diffuser plate is lifted up by the bolt, Since the chambers of the combustion apparatus are composed of about 10 to 12 chambers, it is necessary to press the gaskets constantly to maintain the sealing, and accurate leveling must be performed at the same time, so that the diffuser plate and the rotor diffuser Are spaced at equal intervals in the circumference. This operation is very difficult and difficult.

In addition, the lower part of the diffuser plate is required to be sealed at a proper interval while maintaining proper spacing. However, when the material of the diffuser plate rubs due to external factors such as thermal expansion, bending due to heat, bending due to fixing failure, foreign matter inclusion, It is difficult to fabricate a structure capable of enhancing the sealing ability at the time of coupling with the lower part of the combustion apparatus equipped with the diffuser plate, There is a problem that sealing force is lowered by inserting a gasket or the like and then bolt-tightening it.

In order to solve the problem that the rotary valve is floating due to the thermal expansion of the rotary valve and the gap is enlarged due to abrasion and the untreated gas is discharged as it is, the air pressure is adjusted to absorb and compensate the variable amount The bellows cylinder is provided with a buffering function and is provided with a gap adjusting device so as not to be narrowed or widened by the thermal expansion due to the thermal expansion. The bellows cylinder can be kept at an interval at all times. It is necessary to provide a device capable of precisely controlling the air pressure, which leads to a rise in cost, and there is a problem that an air pressure generating device must be provided. In particular, since most of the environmental facilities are installed outside the building, there is a disadvantage that air (process air) is frozen in the winter season, resulting in poor operation or unevenness.

In addition, since the purge air is discharged by the gap between the FCDPR and FCDPR SEAL supporter provided for sealing between the exhaust gas of the rotary valve and the air supply gas, the seal is maintained, and there is a structural problem that the purge air is needed more than necessary and the manufacturing cost is high. .

Korean Patent Registration No. 10-0954736 (Apr. 19, 2010) Korean Patent Registration No. 10-0936692 (2010.01.06.) Korean Patent Registration No. 10-0927547 (Nov. 12, 2009) Korean Patent Registration No. 10-0983080 (2009.09.13.)

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a regenerative type combustion apparatus comprising a rotary valve, wherein a sealing plate inserted in a diffuser plate, Improved the sealing structure so that the water level can be automatically adjusted by the type sealing material. This solves the problems of warping due to heat and warping due to fixing failure, and improves the purge air discharge structure of the rotary valve located at the lower part of the diffuser plate. Thereby sealing the supply air and the exhaust gas so as not to be mixed with each other.

It is a further object of the present invention to provide an apparatus and a method for controlling the flow rate of a purge air by supplying a purge air through a fine purge pipe, And the other end of the blade sealing plate expands to contact the sealing block to seal the other end of the blade sealing plate, thereby reducing the amount of purge air consumed and further supplying purge air to other sealing portions.

It is another object of the present invention to provide an apparatus and method for controlling a gap between a rotary valve and an upper combustion apparatus, which includes a gap adjuster for always having the same clearance for sealing between the upper combustion device and the rotary valve and a scale detector for visually checking the clearance outside the rotary valve The present invention is to provide a regenerative combustion device which can easily adjust the gap and further improve the processing efficiency.

According to an aspect of the present invention, there is provided a combustion apparatus comprising a catalyst and a heat storage material layer, a combustion chamber, and a separation chamber; A rotary valve for switching supply and exhaust gas directions; 1. A regenerative combustion apparatus for treating a volatile organic compound (VOC) noxious gas, comprising a power device for rotating a rotary valve,

A sealing hole formed in a radial and a circumferential groove so as to communicate with the sealing chamber is formed on an upper surface of the separating chamber which is in contact with the separating chamber, A diffuser plate for filling the sealing material and forming a leak-barrier folding baffle protruding in the circumferential direction on the lower surface so that the purge air is separated in both directions;

A purge zone in which a dead zone and a plurality of purge air holes are formed on the upper surface of the rotary valve located at the lower portion of the diffuser plate to divide the supply air and the exhaust air flow into the boundary therebetween and each of the dead zone and the purge zone is provided with fan wise sealing An air sealing portion for forming a hole in a longitudinal direction to discharge purge air and forming an air pocket in a circumferential direction in which a plurality of fine purge holes are arranged at a position opposite to the leak shielding baffle to block leakage gas; The present invention provides a regenerative combustion device having a rotary valve with improved sealing during a wind direction change.

In a preferred embodiment, the purge air supplied to the purge air holes, the fan-shaped sealing holes, and the air pockets is supplied through the air sealing passages formed along the purge air hole fan wise sealing holes and the air pockets inside the air sealing portion can do.

In a preferred embodiment, the pan-wise sealing hole may be angled to eject purge air outside the dead zone and purge zone regions.

In a preferred embodiment, the leak-barrier paddle baffle is configured to have a narrow bottom portion and a wide protruding cross-sectional shape, and the air pockets into which the leak-barrier paddles are inserted at regular intervals have a narrow bottom portion, Can be configured.

In a preferred embodiment, the rotary valve is provided with a blade sealing plate vertically disposed around the rotary valve to prevent mixing of leakage gas through a clearance between the rotary valve housings surrounding the rotary valve housing, and a rotary valve housing facing the rotary valve is provided with a sealing block So as to be sealed.

In a preferred embodiment, the blade sealing plate is configured such that the blade sealing plates installed up and down by the supplied purge air pressure are bent upward and downward, respectively, to contact and seal the inside of the sealing block.

In a preferred embodiment, the purge air can be configured to be interlocked with the upper portion of the power shaft and to be supplied through a branched purge pipe at a point of a supply pipe for supplying purge air.

In a preferred embodiment, the blade sealing plate may be a thin steel sheet having excellent elasticity.

In a preferred embodiment, a bellows cylinder located below the rotary valve and adapted to absorb a deformation amount of the rotary valve due to thermal expansion assists the adjustment of the clearance between the diffuser plate and the air sealing portion, And a gap adjusting device in which the lengths of the gap adjusting devices are connected to each other.

In a preferred embodiment, a scale detector may be installed at one end of the gap regulating device to check the gap between the diffuser plate and the air sealing portion.

In a preferred embodiment, the scale detector is provided with a scale on which a scale is displayed, and a needle portion indicating a scale of the scale may be installed on the power shaft bearing portion.

In the present invention as described above, when the rotary valve is rotated, while the seal is maintained with the upper combustion device, the harmful gas is continuously supplied while maintaining a uniform clearance, and the exhaust gas is completely burned and treated with clean air. However,

In addition, the diffuser plate installed at the lower part of the upper combustion device constituting the rotary valve type regenerative thermal oxidizer and the air sealing part provided at the upper part of the rotary valve are constituted to be inserted into the sealing hole formed in the diffuser plate when the purge air is sealed Sealing with the sealing plate is automatically controlled by the fluid gel type sealing material, thereby facilitating the sealing work and leveling work in the installation of the regenerative combustion device, thereby reducing the installation cost and facilitating the setting of the gap in assembly,

In order to prevent leakage of exhaust gas or exhaust gas through the gap between the rotary valve and the rotary valve housing, a purge air is supplied through a micro purging tube equipped with a blade sealing plate and a sealing block so that the blade sealing plate expands, And the sealing block is brought into contact with the sealing block, thereby reducing the amount of purge air consumed and further supplying the purge air to the other sealing portion. As a result,

And a scale detector unit provided below the rotary valve for controlling the gap and load between the diffuser plate and the air sealing unit by using a bellows cylinder and a gap adjusting device and for checking the adjusted clearance from the outside, The present invention is a useful invention having a merit that the sealing portion can always maintain a proper gap even if the thermal expansion and contraction caused by the operation of the device are varied or abraded.

1 is a perspective view of a rotary valve mounted on a lower portion of a regenerative combustion device according to an embodiment of the present invention,
FIG. 2 is a cross-sectional view taken along line AA 'of FIG. 1,
3 is a cross-sectional view of the BB 'section of FIG. 1,
FIG. 4 is an exploded perspective view of a diffuser plate and a rotary valve according to an embodiment of the present invention, and FIG. 5 is an exemplary view showing a joint between a diffuser plate and an upper air sealing portion of a rotary valve according to an embodiment of the present invention ,
6 is a cross-sectional view illustrating a sealing structure for blocking mixing of feed and exhaust gas of a rotary valve according to an embodiment of the present invention,
7 is a cross-sectional view illustrating a gap adjusting apparatus according to an embodiment of the present invention,
8A to 8D are perspective views of a regenerative combustion device in which a horizontal and vertical type rotary valve is mounted on a conventional quadratic columnar and cylindrical combustion device,
Figs. 9A and 9B are sectional views of Fig. 8A,
Figures 9c and 9d are cross-sectional views of Figure 8d,
10 is a top plan view sectional view of a conventional rotary valve.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a perspective view showing a rotary valve mounted on a lower portion of a regenerative combustion facility according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA 'of FIG. 1, Fig.

As shown in the drawings, the basic structure of a regenerative combustion apparatus having a rotary valve according to the present invention includes a catalyst and a heat storage material layer 10, a catalyst and a heat storage material layer (not shown) for processing harmful gas of VOC A combustion chamber 20 in which the noxious gas passing through the rotary valve 100 is burnt and a separation chamber 30 which is equally spaced to receive the noxious gas from the rotary valve 100 or to exhaust the clean gas, )Wow; A rotary valve (100) located at a lower portion of the combustion apparatus (1) for separating and changing the direction of the wind while rotating; And a power unit (500) for providing a power source for rotating the rotary valve.

The catalyst and the heat storage material 10 are stacked in a fan-shaped chamber so that the outer shape of the combustion device 1 is configured in a cylindrical shape. However, this shows one embodiment, and the laminated structure according to the present invention may be formed in a rectangular shape. When the rectangular catalyst and the thermal storage material 10 are constructed as described above, the outer shape of the combustion device may be formed in a rectangular shape.

The rotary valve 100 having a shock absorber capable of absorbing or compensating for a variable amount due to thermal expansion is provided in the separation chamber 30 formed of 8 to 12 separation walls so that the air supply and the exhaust are alternately switched to the combustion device. So that the noxious gas of the supply air and the purified air treated by the exhaust gas are mixed and are not discharged to the atmosphere.

The basic operation principle of the rotary valve type regenerative thermal oxidizer having the above structure is that the volatile organic compound (VOC) noxious gas supplied from the supply duct 2 flows into the supply chamber 3, (Not shown) through the rotary valve 100, which is constructed by the blocking wall 150 and separated by the dead zone 250 and the purge zone 260 and rotates so as to process the clean gas supplied and treated with the noxious gas, (About 800 ° C.) in the combustion chamber 20 after descending as shown by the arrow and then collected in the exhaust chamber 5 through the open space formed on one side of the rotary valve 100 And exhausted to the atmosphere through an exhaust duct (4).

The fresh purge air introduced through the purge air classifier 400 is collected in the purge chamber 6 and then supplied to the upper portion of the power shaft 300 through which a driving force is transmitted from the power unit 500 So that leakage gas is not generated in the circumferential direction of the rotary valve 100 and the upper direction of the rotary valve 100 through the fine purge pipe 4021, the fan-shaped sealing hole 111 and the air pocket 4023 .

The basic structure of the other rotary valve type regenerative type combustion device is the same as that of the conventional rotary valve type regenerative type combustion device, and thus a duplicate description thereof will be omitted.

FIG. 4 is an exploded perspective view of a diffuser plate and a rotary valve according to an embodiment of the present invention, and FIG. 5 is an exemplary view showing a joint between a diffuser plate and an upper air sealing portion of a rotary valve according to an embodiment of the present invention And FIG. 6 is a cross-sectional view illustrating a sealing structure for blocking mixing of feed and exhaust gas of a rotary valve according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view illustrating a gap adjusting device according to an embodiment of the present invention .

As shown in FIGS. 4 and 5, the present invention is arranged in the lower part of the separation chamber 30 provided below the catalyst and the heat storage material layer 10 stacked on the upper combustion device 1, The sealing plate 31 and the sealing member 31 are provided on the non-uniform surface in place of the gasket which is conventionally used for the gasket, and the sealing member is automatically adjusted in level even when having a non- 32 are formed to have a highly wear-resistant diffuser plate 110 having an improved sealing structure.

The diffuser plate may have a circular structure so as to correspond to the shape of the divided separation chamber 30 separated from the space by a plurality of separation walls formed by vertically radially circularly arranging as shown in one embodiment, And the vertically formed flesh is circularly arranged in a radial direction to divide the space portion.

A lower portion of the diffuser plate 110 is provided with an air sealing portion 131 formed at an upper portion of the rotary valve to discharge purge air to seal the gap with the diffuser play, thereby supplying purge air.

When the air supply and exhaust gas are switched by rotation of the rotary valve to the boundary portion between the rotary valve and the combustion apparatus for supplying and exhausting volatile organic compounds (VOC) or harmful gas, the diffuser plate 110 and the air sealing portion 131 It is essential to maintain a uniform gap so as not to generate leakage gas. Therefore, the air sealing portion 131 of the rotary valve 100 must be sealed while maintaining a uniform gap with the diffuser plate 110, which is in contact with the clearance gap. That is, the sealing structure of the joint portion between the diffuser plate 110 and the combustion apparatus 1, the sealing structure by the uniform gap holding the leakage gas at the gap between the air sealing portion 131 and the diffuser plate 110, Is the most important component in a large-sized regenerative combustion apparatus, and a sealing structure for preventing leakage of such a minute gap and a structure for maintaining a micro gap are the most important components in a rotary valve (100) type regenerative combustion apparatus.

A flow path for air supply and exhaust is present at the sealing portion and an interface between the air sealing portion 131 and the diffuser plate 110 and a dead zone 250 and a purge zone 260 ), Which is an important part for sealing, and is a part requiring precision to be precisely machined and assembled.

In addition, the diffuser plate 110 has a problem in that the diffuser plate 110 is warped due to thermal bending due to heat, and the bolts are tightened by pressing the gasket with a great force to improve the sealing function, And a sealing plate (sealing plate) 31 contacting the lower portion of the separation chamber 30 so as to solve the problem caused by the factor. The sealing hole 113 into which the sealing plate 31 is inserted is formed. The sealing hole is formed in the upper part of the diffuser plate 110 so that a plurality of grooves are communicated in the circumferential direction and the radial direction.

In addition, the sealing hole 113 is filled with a sealing gel material 32 which is soft and can withstand high temperature and is fluid so that the lower part of the sealing plate 31 is automatically locked so that the water level can be adjusted automatically. The desired sealing and leveling were maintained. That is, since the liquid sealing material is filled, the level level in the horizontal direction is constantly maintained at all times, and the sealing plate 31, which is partially subordinated to the sealing material, is always constant and has a uniform horizontal level, So that a uniform sealing is achieved. Here, the sealing member 32 may be any sealing material as long as it is capable of withstanding high temperatures and is capable of being automatically leveled, such as ultrahigh temperature grease, glass beads, shot blast balls, and shot peening balls.

The shape of the sealing plate 31 is integrally welded to be inserted into a sealing hole 113 formed in the diffuser plate 110. As shown in the figure, the sealing holes are formed in such a manner that a circular groove is formed along the circumference on the outside and inside, respectively, and a plurality of radial straight grooves connecting the outside and the inside groove are communicated with each other. That is, the sealing hole 113 of the diffuser plate 110 is formed in the separation chamber 30 so as to have a shape corresponding to eight to twelve separating walls formed radially so as to alternate the supply and exhaust, A sealing hole is formed around the insertion hole 119 for inserting the rotary shaft 118 located at the center of the diffuser plate 110 formed in a divided manner and the groove formed along the circumference formed on the rim and the groove formed in the radial direction, And the sealing plate 31 is integrally inserted into the sealing groove.

By integrally inserting the sealing hole 113 into the sealing hole 113, the clearance gap is eliminated, and the leakage gas through the minute gap is originally blocked. That is, a conventional gasket is formed in a plate shape, and a space is divided into a plurality of dividing walls formed by vertically radially and circularly arranging in a lower part of the combustion apparatus, and the lower surface of the divided separation chamber 30 and the processing surface of the diffuser plate 110 are assembled The sealing plate 31 according to the present invention has a structure in which the separating chamber 30 and the diffuser plate 110 are arranged in a vertical direction so that the separating chamber 30 and the diffuser plate 110 are separated from each other. And the sealing hole is formed integrally with the sealing hole formed in the outer side and the inner side and the sealing hole formed in the radial direction, so that the sealing function can be performed perfectly.

Further, the sealing hole 113 is filled with a gel-type sealing material 32 which is soft and can withstand a high temperature and can be automatically regulated in its water level, so that the desired sealing and leveling are maintained without being influenced by external factors The gap between the lower surface of the chamber 30 and the diffuser plate 110 is further reduced.

The diffuser plate 110 has a plurality of fixing bolts 115 and bolt holes 114 formed in the circumferential direction where the sealing plate 31 is installed to fasten the fixing bolts 115, And a diffuser plate 110 disposed on a lower surface thereof. When the fixing bolt 115 and the diffuser plate 110 fastened through the bolt holes 114 of the diffuser plate 110 are fixed to the lower surface of the separation chamber 30 only once, It is not necessary to adjust it. That is, in the past, if a gap is generated due to the operation of the rotary valve 100 in which the gasket is non-uniformly assembled between the diffuser plate 110 and the separation chamber 30 or rotates at the bottom of the regenerative combustion device, However, the present invention can automatically cope with a variation in the clearance, unlike the conventional one, by sealing using the sealing plate 31 and the sealing material 32 having fluidity which is automatically adjusted in the water level, so that no separate clearance adjustment is required.

In order to prevent the gas leaking around the circumference of the diffuser plate 110, a leak blocking baffle 117 protruding downward is formed on the lower surface of the lower portion so as to have a narrow bottom and a wide protrusion shape, To guide the direction of the purge air supplied from the gas supply pipe (2) in both directions so as to discharge gas to be leaked by the cyan phenomenon. For this, the air pocket 4023 into which the leak-barrier baffle 117 is inserted also has a groove structure having a narrow bottom portion and a wide top portion facing the shape.

When the leak blocking baffle 117 is formed on the lower surface as described above, when the diffuser plate 110 and the air sealing portion 131 are rotated, the purge air supplied to the air sealing passage 132 and the air pocket 4023, A dual air curtain is formed on both sides of the leakage blocking baffle 117 provided on the lower surface of the diffuser plate 110 and inclined at an inclined angle so as to block the gas that is to be leaked around the circumference by the cyan phenomenon. The ciphone phenomenon is a natural phenomenon in which the fluid flows toward the low pressure side. When the purge air introduced by the leak blocking baffle 117 forms a dual air curtain inside and outside, The inflow of the leakage gas does not occur, thereby preventing the cyphon phenomenon. The leak-barrier baffle 117 is protruded from the lower surface of the diffuser plate 110 so as to form the dual air curtain, and the air sealing passage 131 is provided with the air sealing passage.

 The rotary valve 100 has a structure in which a rotary shaft 118 protruding upward is formed at the center of the air sealing part 131 and a dead zone 250 and a purge zone 260 symmetrical about the rotary shaft 118 Are formed in a fan shape having a section of a predetermined angle.

In addition, the dead zone 250 and the purge zone 260 are not formed. The dead zone 250 and the purge zone 260 are formed in an open structure with only a rim, so that the supplied noxious gas is used as an air supply channel. And is used as an exhaust passage space through which clean air that has been burned and processed is discharged.

At this time, fan wise diffuser sealing holes 111 are provided at left and right sides of the boundaries of the dead zone 250 and the purge zone 260 at a certain angle in the direction of the rotation axis about the circumference, so that high- The air shutoff wall is formed to prevent the harmful gas from leaking into the other regions and mixing through the dead zone 250 and purge zone 260 regions.

An air pocket 4023 having a groove structure is formed in the upper edge of the air sealing part 131 so as to form a dual air curtain in the circumferential direction. A plurality of fine purge holes 4022 are arranged on the air pocket 4023 So that the harmful gas is prevented from leaking into the other region and mixing with the peripheral portion in the circumferential direction.

The air sealing part 131 discharges the purge air supplied from the purge air supply mechanism 400 from the purge air discharge port 403 to form the fan wise diffuser sealing hole 111 and the purge air hole 401 A space for an air sealing passage 132 that is a passage space through which the purge air moves to supply air to the air pocket 112 formed with the fine purging holes 4022 and the fine purging holes 4022 is formed in the space between the fan wise diffuser sealing holes 111, And is formed along the air pocket 4023.

The purge air stored in the air sealing passage 132 communicates with the purge air hole 401 formed with a plurality of air pockets 4023 formed in the upper surface thereof and is supplied to the combustion apparatus and is supplied to the fan- The purge air is supplied to the sealing hole 111 and the air pocket 4023.

6, the power unit 500 is installed at the center of the rotary valve 100 to prevent mixing of the leakage gas through a clearance between the rotary valve 100 and the rotary valve housing 120 surrounding the rotary valve 100, A plurality of fine purging pipes 4021 branching at one point of a supply pipe 402 interlocked with the upper portion of the power shaft 300 receiving driving force from the upper and lower portions of the rotary valve 100, A sealing block 221 is formed in a circumferential direction in the rotary valve housing 120 having a gap between the rotary valve and the rotary valve at a position opposite to the rotor sealing plate 220 so that the blade sealing plate 220 is purged And is configured to be inflated while being inflated by the air pressure so as to seal between the exhaust gas or the supply gas.

That is, two upper and lower blade sealing plates 220 having good elastic force for sealing (sealing) between the exhaust gas and the supply gas are provided, and a sealing block 221 installed to be inserted into the inner space portion of the blade sealing plate 220, , And the exhaust gas is completely blocked so as not to be mixed. The sealing block 221 is installed in the rotary valve housing 120 and spaced apart from the rotary valve 100 with a slight gap therebetween.

The reason for this construction is that the above-described conventional rotary valve structure requires more purge air than necessary for discharging purge air through a gap to form a FCDPR SEAL and FCDPR SEAL supporter for sealing between the exhaust gas and the supply gas at the center, SEAL and FCDPR SEAL supports are expensive. In order to solve this problem, the present invention can be manufactured at a low cost for sealing the exhaust gas or the air supply gas of the rotary valve 100 and is wasted A fine purge pipe 4021 branching laterally at one point of a supply pipe 402 for supplying purge air by installing two blade sealing plates 220 and a sealing block 221 having good elasticity to prevent purge air, The two upper and lower blade sealing plates 220 are elastically deformed upward and downward by the pressure of the purge air supplied through the upper and lower blade sealing plates 220, So as to completely block the gap between the sealing blocks 221 by contacting the sealing block 221. The blade sealing plate (220) is a commercially available thin steel sheet having excellent elasticity to reduce the manufacturing cost and easily inflate even at a small pressure.

7, the gap regulating device 601 for maintaining the gap between the upper diffuser plate 110 and the air sealing portion 131 of the rotary valve 100 is supported by the support frame 700, And both side ends thereof are connected to the shaft bearing portion 301, respectively. The gap adjusting device is a combination of a bolt and a nut, and the interval between the support frame and the power shaft bearing is narrowed or extended according to the rotation direction of the nut positioned above and below the support frame, and the position of the rotary valve is raised and lowered microscopically as a result. This is because the sliding shaft 302 located below the power shaft bearing portion 301 is not fixed to the support frame but inserted into the hole formed in the support frame.

More specifically, in order to support the load of the rotary valve 100, a bellows cylinder 600 is installed under the rotary valve. The bellows cylinder 600 includes a sliding shaft (not shown) The rotary valve 100 is configured to be buffered and restored in the lower portion of the rotary valve 100 in order to absorb a deformation amount due to thermal expansion.

As described above, according to the present invention, in the diffuser plate, the fixing bolt 115 passing through the bolt hole 114 in the state where the sealing plate 31 is inserted into the sealing hole 113 filled with the fluid sealing member 32, The sealing portion is automatically held at an appropriate interval by being engaged with the lower portion of the apparatus 1. However, a gap between the lower portion of the diffuser plate 110 and the air sealing portion 131, which constitutes the upper surface of the rotary valve 100, There is a structural problem that it is very difficult to calculate the load of the rotating shaft 100 due to various factors such as thermal expansion, foreign matter, and pinching while maintaining a constant gap.

The reason is that when the pressure of the bellows cylinder 600 is high, the rotary valve 100 is brought close to the upper direction and the rotation is impossible, and when the pressure is low, the clearance becomes large and the exhaust gas is mixed.

Further, in order to solve the problem that the rotary valve 100 is varied in length due to thermal expansion, or the rotation valve 100 is floated and the gap 214 is enlarged due to wear and the untreated gas is discharged, a variable amount is absorbed However, this may also be influenced by the external environment such as external temperature, air pressure difference, and installation place.

In order to solve this problem, the present invention provides a gap regulating device (601) in which one end is connected between a support frame (700) and a power shaft bearing portion (301) The diffuser plate 110 and the air sealing portion 131 are always rotated at a constant interval without being affected by a variable amount or an external factor.

A scale detector 602 is provided at one end of the gap adjusting device 601 so that the gap between the diffuser plate 110 and the air sealing part 131 can be checked from the outside during operation from the outside of the rotary valve 100 The distance between the diffuser plate 110 and the air sealing part 131 can be checked by checking the gap detector 602 while adjusting the gap between the diffuser plate 110 and the air sealing part 131 by using the gap adjusting device 601. [ In this scale detector, a scale 603 on which scales are displayed may be provided on the support frame, and a needle 604 pointing to a scale scale may be provided on the power shaft bearing portion.

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

(1): combustion device (2): air supply duct
(3): air supply chamber (4): exhaust duct
(5): exhaust chamber (6): purge chamber
(10): catalyst and heat storage material layer (20): combustion chamber
(30): separation chamber (31): sealing plate
(32): sealing material (100): rotary valve
(110): diffuser plate (111): pan-wise diffuser sealing hole
(113): sealing hole (114): bolt hole
(115): Fixing bolt (117): Leak blocking baffle
(118): rotation shaft (119): insertion hole
(120): Rotary valve housing (131): Air sealing part
(132): air sealing passage (150): blocking wall
(210): separating partition (211): separating partition
(214): Clearance (220): Blade sealing plate
(221): sealing block (222): feed mechanism
(250): DEAD ZONE (260): PURGE ZONE
(300): Power shaft (301): Power shaft bearing part
(302): Sliding shaft (400): Purge air classifier
(401): purge air hole (402): supply pipe
(403): Purge air outlet (500): Power device
(600): bellows cylinder (601): gap adjusting device
(602): Scale detector (603): Scale
(604): Needle (4021): Microfuge tube
(4022): fine purge hole (4023): air pocket
(700): Support frame

Claims (11)

A combustion apparatus (1) comprising a catalyst and a heat storage material layer (10), a combustion chamber (20) and a separation chamber (30); A rotary valve (100) for switching supply and exhaust gas direction; And a power unit (500) for rotating the rotary valve, wherein the volatile organic compound (VOC)
A sealing hole 113 is formed in the upper surface of the lower portion of the separation chamber to contact the separation chamber 30 and radially and circumferentially formed to communicate with the groove to insert the sealing plate 31, A diffuser plate 110 filled with a fluid gel type sealing material 32 whose water level is automatically controlled and formed with a leak cutoff baffle 117 protruding in the circumferential direction on the lower surface so as to separate purge air in both directions;
A purge zone (260) having a dead zone (250) and a plurality of purge air holes (401) formed on the upper surface of the rotary valve located below the diffuser plate (110) A fan wise sealing hole 111 is formed in the longitudinal direction on each side of the dead zone 250 and the purge zone 260 so as to discharge the purge air and at a position opposed to the leak cutoff baffle 117, And an air sealing part (131) formed by circumferentially forming an air pocket (4023) in which fine purge holes (4022) are arranged to block the leakage gas. A regenerative combustion device having a valve.
The method according to claim 1,
The purge air supplied to the purge air holes 401, the fan-shaped sealing holes 111 and the air pockets 4023 is supplied to the purge air holes 401, the fan-shaped sealing holes 111, And an air sealing passage (132) formed along the air pocket (4023). The regenerative combustion device according to claim 1,
The method according to claim 1,
Wherein the fan-shaped sealing hole (111) is formed by oblique processing so as to discharge purge air outside the dead zone (250) and the purge zone (260). The regeneration type combustion apparatus .
The method according to claim 1,
An air pocket 4023, into which the leak-shielding fold baffle 117 is inserted at a predetermined interval, is formed to have a narrow bottom portion and a wide wide top portion. Sectional shape of the rotary valve, wherein the sealing is improved at the time of changing the direction of the wind.
The method according to claim 1,
The rotary valve 100 is provided with a blade sealing plate 220 vertically disposed around the rotary valve 100 to prevent mixing of leakage gas through a clearance between the rotary valve housings 120 surrounding the rotary valve 100, And the sealing block (221) is formed in the housing (120) in a circumferential direction so as to seal the housing (120).
The method of claim 5,
Wherein the blade sealing plate (220) is configured such that the blade sealing plates (220) installed at the upper and lower sides by the supplied purge air pressure are respectively bent upward and downward to come in contact with the inside of the sealing block (221) And a rotary valve having improved sealing of the rotary valve.
The method of claim 6,
The purge air is supplied to the upper portion of the power shaft 300 through a fine purge pipe 4021 branched from a supply pipe 402 for supplying purge air. A regenerative combustion device having a rotary valve with improved sealing.
The method according to claim 5 or 6,
Wherein the blade sealing plate (220) is a thin steel plate having excellent elasticity.
The method according to claim 1,
The gap between the diffuser plate 110 and the air sealing portion 131 is controlled by the bellows cylinder 600 disposed below the rotary valve 100 and configured to absorb the deformation amount of the rotary valve 100 due to thermal expansion. Further comprising a gap regulating device (601) whose both ends are connected to the support frame (700) and the power shaft bearing (301) to adjust the length thereof. And the regenerative combustion device.
The method of claim 9,
And a scale detector (602) for confirming an interval between the diffuser plate (110) and the air sealing part (131) is installed at one end of the gap regulating device (601) A regenerative combustion device.
The method of claim 10,
The scale detector 602 is provided with a scale 603 on which scales are displayed on a support frame 700 and a needle 604 pointing to a scale scale is provided on the power shaft bearing portion. A regenerative combustion device having a rotary valve with improved sealing.

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