JP2007205609A - Heat storage type deodorizing device - Google Patents

Heat storage type deodorizing device Download PDF

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JP2007205609A
JP2007205609A JP2006023302A JP2006023302A JP2007205609A JP 2007205609 A JP2007205609 A JP 2007205609A JP 2006023302 A JP2006023302 A JP 2006023302A JP 2006023302 A JP2006023302 A JP 2006023302A JP 2007205609 A JP2007205609 A JP 2007205609A
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gas
heat storage
heat
treated
flow
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Isamu Aoki
Kenji Dojo
Masanori Fujioka
Yoshinori Kaneda
Tadao Matsumoto
Akira Noda
忠雄 松本
政憲 藤岡
研二 道場
晃 野田
芳典 金田
勇 青木
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Kobelco Eco-Solutions Co Ltd
株式会社神鋼環境ソリューション
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<P>PROBLEM TO BE SOLVED: To further improve decomposition efficiency of organic matter in gas to be treated, while maintaining superior heat efficiency being a feature of a heat storage type deodorizing device. <P>SOLUTION: The heat storage type deodorizing device is comprised by providing a heat treatment area, and a plurality of heat storage areas, and it is composed such that the gas to be treated preheated by passing it through one heat storage area is introduced into the heat treatment area, heat treatment of the gas to be treated is carried out in the heat treatment area, and the other heat storage areas are heated by exhausting the treated gas through the other heat storage areas. A turbulence plate promoting turbulence of the gas to be treated is provided in the heat treatment area. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、主として工場等から排出される被処理ガスを脱臭するための蓄熱式脱臭装置に関し、とりわけ、揮発性有機化合物(以下、「VOC」という)等の有機物を含んだ被処理ガスの脱臭に好適な蓄熱式脱臭装置に関する。   The present invention relates to a heat storage type deodorization apparatus for deodorizing a gas to be treated mainly discharged from a factory or the like, and in particular, deodorizing a gas to be treated containing an organic substance such as a volatile organic compound (hereinafter referred to as “VOC”). It is related with the thermal storage-type deodorizing apparatus suitable for.
従来、工場等から排出されVOCを含んだ被処理ガスの脱臭装置として、図8に示すような蓄熱式脱臭装置が知られている。即ち、従来の該蓄熱式脱臭装置101は、一般に、被処理ガスを燃焼するための燃焼室102と、該燃焼室へ導入する被処理ガスを予熱するための複数の蓄熱室103とを備えて構成されている。蓄熱室103内には、蓄熱層として例えばハニカム状の蓄熱材が収容されており、一方、燃焼室102内には、該燃焼室内を所定の温度に保持するための加熱装置104(例えば、バーナー)が1基又は複数基備えられている。   Conventionally, a heat storage type deodorization apparatus as shown in FIG. 8 is known as a deodorization apparatus for a gas to be treated discharged from a factory or the like and containing VOC. That is, the conventional heat storage deodorization apparatus 101 generally includes a combustion chamber 102 for burning the gas to be processed and a plurality of heat storage chambers 103 for preheating the gas to be processed to be introduced into the combustion chamber. It is configured. In the heat storage chamber 103, for example, a honeycomb-shaped heat storage material is accommodated as a heat storage layer. On the other hand, in the combustion chamber 102, a heating device 104 (for example, a burner) for maintaining the combustion chamber at a predetermined temperature. ) Are provided in one or more groups.
該蓄熱式脱臭装置は、被処理ガスを何れか一つの蓄熱室を入口として燃焼室へと導入し、該燃焼室にて熱処理した後、他の蓄熱室を出口として排出するように運転される。
被処理ガスとの熱交換によって出口側の蓄熱室が次第に高温となるため、所定時間毎に入口となる蓄熱室と出口となる蓄熱室とを切り替えることにより、被処理ガスによる排熱を有効利用することができる。
The heat storage deodorization apparatus is operated to introduce a gas to be treated into any one of the heat storage chambers as an inlet into the combustion chamber, heat-treat in the combustion chamber, and then discharge the other heat storage chamber as an outlet. .
Because the heat storage chamber on the outlet side gradually becomes hot due to heat exchange with the gas to be processed, the exhaust heat from the gas to be processed is effectively used by switching between the heat storage chamber serving as the inlet and the heat storage chamber serving as the outlet every predetermined time. can do.
特開平9−264521号公報Japanese Patent Laid-Open No. 9-264521
斯かる構成の蓄熱式脱臭装置では、一般に、温度条件が同じであれば、燃焼室における被処理ガスの滞留時間を長くする程VOC等の有機物の分解効率が高まると考えられるが、実際には、燃焼室の表面積が増大して燃焼室からの放熱量が増加するため、逆に温度低下を招いて熱効率が低下するという問題点を有している。   In the regenerative deodorization apparatus having such a configuration, it is generally considered that the decomposition efficiency of organic substances such as VOC increases as the residence time of the gas to be treated in the combustion chamber is increased if the temperature conditions are the same. However, since the surface area of the combustion chamber is increased and the amount of heat released from the combustion chamber is increased, there is a problem in that the temperature is lowered and the thermal efficiency is decreased.
そこで本発明は、蓄熱式脱臭装置の特徴である優れた熱効率を維持しつつ、被処理ガス中の有機物の分解効率をさらに向上させることを一の課題とする。   Then, this invention makes it one subject to further improve the decomposition | disassembly efficiency of the organic substance in to-be-processed gas, maintaining the outstanding thermal efficiency which is the characteristics of the thermal storage type deodorizing apparatus.
上記課題を解決すべく、本発明の蓄熱式脱臭装置は、加熱処理領域と、複数の蓄熱領域とを備えてなり、一の蓄熱領域を通過させることによって予熱した被処理ガスを加熱処理領域へと導入し、該加熱処理領域にて被処理ガスを熱処理し、熱処理された被処理ガスを他の蓄熱領域を通して排出することによって該他の蓄熱領域が加熱されるように構成された蓄熱式脱臭装置において、前記加熱処理領域に、前記被処理ガスの乱れを促進する乱流板が設けられたことを特徴とする。   In order to solve the above problems, the heat storage deodorization apparatus of the present invention includes a heat treatment region and a plurality of heat storage regions, and the gas to be treated preheated by passing through one heat storage region is supplied to the heat treatment region. The heat storage deodorization configured to heat the gas to be processed in the heat treatment region and discharge the heat treated gas through the other heat storage region to heat the other heat storage region In the apparatus, a turbulent flow plate that promotes turbulence of the gas to be processed is provided in the heat treatment region.
斯かる構成の蓄熱式脱臭装置によれば、加熱処理領域に、被処理ガスの乱れを促進する乱流板が設けられたことにより、該加熱処理領域を通過する被処理ガスがかく乱されて該被処理ガス中に含まれる有機物の分解が促進される。   According to the heat storage type deodorization apparatus having such a configuration, the turbulent flow plate that promotes the turbulence of the gas to be processed is provided in the heat processing region, so that the gas to be processed that passes through the heat processing region is disturbed and the Decomposition of organic substances contained in the gas to be treated is promoted.
また、本発明の蓄熱式脱臭装置は、前記乱流板が複数枚の板材からなり、前記被処理ガスの流れ方向に対して略垂直な面方向に離間して配置されたことを特徴とする。   Further, in the heat storage deodorizing apparatus of the present invention, the turbulent flow plate is composed of a plurality of plate materials, and is arranged spaced apart in a plane direction substantially perpendicular to the flow direction of the gas to be processed. .
前記乱流板が複数枚の板材からなり、前記被処理ガスの流れ方向に対して略垂直な面方向に離間して配置されていれば、被処理ガスの偏流が生じ、複数の渦を生じることとなる。従って、被処理ガスの偏流と、渦生成の効果により、有機物の分解が大幅に促進されることとなる。   If the turbulent flow plate is composed of a plurality of plate materials and is arranged apart from each other in a plane direction substantially perpendicular to the flow direction of the gas to be processed, a drift of the gas to be processed is generated and a plurality of vortices are generated. It will be. Therefore, the decomposition of the organic matter is greatly promoted by the drift of the gas to be processed and the effect of vortex generation.
また、本発明の蓄熱式脱臭装置は、前記乱流板が複数枚の板材からなり、隣接する板材が相互に異なる方向に傾斜して配置されたことを特徴とする。   In the heat storage deodorizing apparatus of the present invention, the turbulent flow plate is composed of a plurality of plate materials, and adjacent plate materials are arranged to be inclined in different directions.
斯かる構成の蓄熱式脱臭装置によれば、被処理ガスの3次元的な偏流が生じることとなるため、より多くの渦が形成されやすくなる。よって、渦の形成によって有機物の分解がより一層促進される蓄熱式脱臭装置を構成しうる。   According to the heat storage type deodorizing apparatus having such a configuration, a three-dimensional drift of the gas to be treated is generated, so that more vortices are easily formed. Therefore, it is possible to configure a heat storage type deodorizing device in which decomposition of organic substances is further promoted by formation of vortices.
また、本発明の蓄熱式脱臭装置は、前記板材が、前記被処理ガスの流れ方向に対して略垂直で且つ放射状に延びる軸線を基準とし、被処理ガスの流れ方向に対して垂直となる状態から略同一角度で回転した状態(いわゆる、風車状)で配置されたことを特徴とする。   Further, in the heat storage deodorizing apparatus of the present invention, the plate member is in a state that is perpendicular to the flow direction of the gas to be processed with reference to an axis extending substantially perpendicular to the flow direction of the gas to be processed and radially extending. It arrange | positions in the state (what is called a windmill shape) rotated by substantially the same angle from.
乱流板を構成する板材が、このような風車状に配置されていれば、被処理ガスが乱流板を通過する際に形成される渦により、有機物の分解が大幅に促進されるにもかかわらず、圧力損失の増加は抑制されるという顕著な効果がある。   If the plate material constituting the turbulent flow plate is arranged in such a windmill shape, the vortex formed when the gas to be processed passes through the turbulent flow plate can greatly accelerate the decomposition of the organic matter. Regardless, there is a significant effect that the increase in pressure loss is suppressed.
また、本発明の蓄熱式脱臭装置は、前記乱流板により、前記被処理ガスの流速が、前記加熱処理領域の導入部における流速に対して2〜6倍となるように構成されたことを特徴とする。   Further, the heat storage type deodorization apparatus of the present invention is configured such that the flow rate of the gas to be processed is 2 to 6 times the flow rate at the introduction portion of the heat treatment region by the turbulent flow plate. Features.
被処理ガスの流速が、加熱処理領域の導入部における流速に対して2〜6倍となるように前記乱流板が構成されていれば、圧力損失の大幅な増大を招くことなく分解促進作用をより確実に発揮しうるものとなる。   If the turbulent flow plate is configured so that the flow rate of the gas to be processed is 2 to 6 times higher than the flow rate in the introduction part of the heat treatment region, the decomposition promoting action can be achieved without causing a significant increase in pressure loss. Can be demonstrated more reliably.
また、本発明の蓄熱式脱臭装置は、前記乱流板が、前記加熱処理領域における被処理ガスの流れ方向の断面積に対して、該流れ方向に垂直な面に該乱流板を投影した投影面積が1/2〜5/6となるように構成されたことを特徴とする。   Further, in the heat storage deodorization apparatus of the present invention, the turbulent plate projects the turbulent plate on a plane perpendicular to the flow direction with respect to a cross-sectional area in the flow direction of the gas to be processed in the heat treatment region. The projection area is configured to be 1/2 to 5/6.
斯かる構成の蓄熱式脱臭装置によれば、被処理ガスの偏流がより一層形成されやすくなるとともに、圧力損失の増加をも抑制し、有機物の分解促進作用をより確実に発揮しうるものとなる。   According to the heat storage type deodorization apparatus having such a configuration, the drift of the gas to be treated is more easily formed, the increase in pressure loss is suppressed, and the organic substance decomposition promoting action can be more reliably exhibited. .
また、本発明の蓄熱式脱臭装置は、前記乱流板が、前記加熱処理領域の被処理ガス流れ方向に垂直な断面積のうち、1/2〜5/6を占めるように構成されたことを特徴とする。   Moreover, the heat storage deodorization apparatus of the present invention is configured such that the turbulent flow plate occupies 1/2 to 5/6 of a cross-sectional area perpendicular to the gas flow direction of the heat treatment region. It is characterized by.
斯かる構成の蓄熱式脱臭装置によれば、乱流板によって被処理ガスの流路断面積が1/2〜1/6となるため、被処理ガスの流速が、加熱処理領域の少なくとも一部において、他の加熱処理領域における流速に対して2〜6倍となり、有機物の分解促進作用をより確実に発揮しうるものとなる。   According to the heat storage deodorization apparatus having such a configuration, the flow passage cross-sectional area of the gas to be processed is reduced to 1/2 to 1/6 by the turbulent flow plate, so that the flow rate of the gas to be processed is at least a part of the heat treatment region. In this case, it becomes 2 to 6 times the flow rate in the other heat treatment region, and the organic substance decomposition promoting action can be more reliably exhibited.
さらに、本発明の蓄熱式脱臭装置は、加熱処理領域と、複数の蓄熱領域とを備えてなり、一の蓄熱領域を通過させることによって予熱した被処理ガスを加熱処理領域へと導入し、該加熱処理領域にて被処理ガスを熱処理し、熱処理された被処理ガスを他の蓄熱領域を通して排出することによって該他の蓄熱領域が加熱されるように構成された蓄熱式脱臭装置において、前記加熱処理領域の少なくとも一部において、前記被処理ガスの流速が、前記加熱処理領域の導入部における流速に対して2〜6倍となるように構成されたことを特徴とする。   Furthermore, the heat storage deodorization apparatus of the present invention comprises a heat treatment region and a plurality of heat storage regions, and introduces a gas to be treated preheated by passing through one heat storage region into the heat treatment region, In the regenerative deodorizing apparatus configured to heat the gas to be processed in the heat treatment region and discharge the heat treated gas through the other heat storage region to heat the other heat storage region, the heating In at least a part of the processing region, the flow rate of the gas to be processed is configured to be 2 to 6 times the flow rate in the introduction portion of the heat treatment region.
斯かる構成の蓄熱式脱臭装置によれば、被処理ガスの流速が、加熱処理領域の一部において加熱処理領域の導入部における流速に対して2〜6倍となるため、該蓄熱式脱臭装置は、有機物の分解促進作用をより確実に発揮しうるものとなる。   According to the heat storage deodorization apparatus having such a configuration, the flow rate of the gas to be processed is 2 to 6 times the flow rate at the introduction portion of the heat treatment region in a part of the heat treatment region. Can exhibit the organic substance decomposition promoting action more reliably.
このように、本発明に係る蓄熱式脱臭装置によれば、蓄熱式脱臭装置の特徴である優れた熱効率を維持しつつ、被処理ガス中の有機物の分解効率をさらに向上させることが可能となる。   Thus, according to the regenerative deodorization apparatus according to the present invention, it is possible to further improve the decomposition efficiency of the organic matter in the gas to be treated while maintaining the excellent thermal efficiency that is characteristic of the regenerative deodorization apparatus. .
以下、本発明の蓄熱式脱臭装置に関し、図面を参照しつつ詳細に説明する。
図1は、本発明の第一実施形態の蓄熱式脱臭装置を示した斜視図である。該蓄熱式脱臭装置1は、加熱処理領域として、被処理ガス5を加熱して該被処理ガス中に含まれるVOC等の有機物を酸化分解する燃焼室2を備え、また、蓄熱領域として、蓄熱材を備えた3つの蓄熱層3を備えており、いわゆる3塔式の蓄熱式脱臭装置として構成されている。
Hereinafter, the heat storage deodorizing apparatus of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a heat storage deodorizing apparatus according to a first embodiment of the present invention. The heat storage deodorization apparatus 1 includes a combustion chamber 2 that heats the gas to be treated 5 as a heat treatment region and oxidizes and decomposes organic matter such as VOC contained in the gas to be treated. It comprises three heat storage layers 3 provided with materials, and is configured as a so-called three-column heat storage deodorization device.
図1に示したように、該燃焼室2は略直方体形状であり、その頂部又は側部には該燃焼室2の温度を所定の温度(例えば、830℃)に保つ加熱手段としてのバーナ21が設けられるとともに、該燃焼室2内には、被処理ガス5の乱れを促進する乱流板4が設けられている。
本実施形態の蓄熱式脱臭装置1においては、乱流板4が2組設けられ、該2組の乱流板4、4によって燃焼室2が3つの領域に区画されており、各領域の下方には、それぞれ蓄熱層3が配置された状態となっている。
As shown in FIG. 1, the combustion chamber 2 has a substantially rectangular parallelepiped shape, and a burner 21 serving as a heating means for maintaining the temperature of the combustion chamber 2 at a predetermined temperature (for example, 830 ° C.) is provided at the top or side of the combustion chamber 2. And a turbulent flow plate 4 that promotes turbulence of the gas to be processed 5 is provided in the combustion chamber 2.
In the heat storage deodorizing apparatus 1 of the present embodiment, two sets of turbulent flow plates 4 are provided, and the combustion chamber 2 is partitioned into three regions by the two sets of turbulent flow plates 4, 4 below each region. Are in a state in which the heat storage layers 3 are respectively disposed.
図2は、一組の乱流板4の構成を示した図であり、図2(a)は該一組の乱流板4を被処理ガスの流れ方向(以下、単に「流れ方向」ともいう)より見た立面図、図2(b)は該一組の乱流板4を流れ方向に対して垂直な方向(上側)から見た平面図である。図2に示したように、本実施形態における一組の乱流板4は、4枚の略同一な矩形状の板材4a、4b、4cおよび4dから構成されており、該4枚の板材4a、4b、4cおよび4dが、被処理ガスの流れ方向に対して略垂直な方向に離間して配置されている。   FIG. 2 is a diagram showing the configuration of a set of turbulent flow plates 4. FIG. 2 (a) shows the flow of the gas to be treated (hereinafter simply referred to as “flow direction”) in the set of turbulent flow plates 4. FIG. FIG. 2B is a plan view of the set of turbulent plates 4 viewed from a direction (upper side) perpendicular to the flow direction. As shown in FIG. 2, the set of turbulent flow plates 4 in the present embodiment is composed of four substantially identical rectangular plate members 4a, 4b, 4c and 4d, and the four plate members 4a. 4b, 4c, and 4d are spaced apart in a direction substantially perpendicular to the flow direction of the gas to be processed.
また、これら4枚の板材4a、4b、4cおよび4dは、相互に異なる方向に傾斜している。具体的には、各板材は、図2(a)に示したように、流れ方向に対して略垂直で且つ放射状に延びる軸線41を基準とし、流れ方向に対して垂直となる状態から略同一角度で回転した状態で配置されている。本実施形態においては、該軸線41は、直方体形状の燃焼室2の垂直方向断面(即ち、矩形)の対角線と略同位置で、且つ、各矩形状の板材の対角線と略同位置になるように構成されている。
尚、図2(a)中に示した「+」記号は該板材が軸線41よりも手前側に位置することを意味し、「−」記号は該板材が軸線41よりも向こう側に位置することを意味するものである。また、ここでいう軸線とは、仮想的な軸をも含む概念である。
Further, these four plate members 4a, 4b, 4c and 4d are inclined in different directions. Specifically, as shown in FIG. 2A, each plate member is substantially the same from a state perpendicular to the flow direction with respect to the axis 41 that is substantially perpendicular to the flow direction and extends radially. Arranged in a rotated state at an angle. In the present embodiment, the axis 41 is substantially at the same position as the diagonal of the vertical cross section (that is, rectangular) of the rectangular parallelepiped combustion chamber 2 and at the same position as the diagonal of each rectangular plate. It is configured.
Note that the “+” symbol shown in FIG. 2A means that the plate material is positioned on the near side of the axis 41, and the “−” symbol indicates that the plate material is positioned on the far side of the axis 41. It means that. Moreover, the axis line here is a concept including a virtual axis.
各板材4a、4b、4cおよび4dの回転角度は、0〜40°、好ましくは5〜30°に設定される。また、該乱流板4は、その近傍を通過する被処理ガス5の流速が、該燃焼室2への導入部(即ち、前記蓄熱層3の上方)における被処理ガスの流速に対して2〜6倍、好ましくは3〜5倍となるように、燃焼室2の壁との間隔および板材同士の間隔が設定される。言い換えると、該乱流板4は、流れ方向の断面積に対して、該流れ方向に垂直な面に該乱流板を投影した投影面積が、1/2〜5/6、好ましくは2/3〜4/5となるように配置される。   The rotation angle of each plate 4a, 4b, 4c and 4d is set to 0 to 40 °, preferably 5 to 30 °. Further, the turbulent flow plate 4 has a flow velocity of the gas to be processed 5 passing through the vicinity of the turbulent plate 4 with respect to the flow velocity of the gas to be processed in the introduction portion to the combustion chamber 2 (that is, above the heat storage layer 3). The distance from the wall of the combustion chamber 2 and the distance between the plate members are set so as to be -6 times, preferably 3 to 5 times. In other words, the turbulent flow plate 4 has a projected area obtained by projecting the turbulent flow plate on a plane perpendicular to the flow direction with respect to the cross-sectional area in the flow direction, being 1/2 to 5/6, preferably 2 / It arrange | positions so that it may become 3-4 / 5.
一方、蓄熱層3には、被処理ガス5との熱交換を行うための蓄熱材(図示せず)が備えられている。該蓄熱材としては、例えば、ハニカム状の被処理ガス流路が形成された、セラミック製の蓄熱材等が好適に使用される。   On the other hand, the heat storage layer 3 is provided with a heat storage material (not shown) for heat exchange with the gas 5 to be processed. As the heat storage material, for example, a ceramic heat storage material in which a honeycomb-shaped gas flow passage is formed is preferably used.
斯かる構成の蓄熱式脱臭装置1は、3つの蓄熱層3のうち、何れか一つの蓄熱層3を入口として被処理ガス5を燃焼室2へと導入し、他の何れか一つの蓄熱層3を出口として被処理ガス5を燃焼室2から排出するように運転される。また、本実施形態のような3塔式の蓄熱式脱臭装置1では、残る一つの蓄熱層3にはパージガスが供給され、蓄熱層3の内部に残留した有機物等が除去される。そして、入口となる蓄熱層3、出口となる蓄熱層3およびパージされる蓄熱層3が、周期的に切換えられるように運転される。   The heat storage deodorization apparatus 1 having such a configuration introduces the gas 5 to be treated into the combustion chamber 2 using any one of the three heat storage layers 3 as an inlet, and the other heat storage layer. The gas to be processed 5 is operated so as to be discharged from the combustion chamber 2 using 3 as an outlet. Further, in the three-column heat storage deodorization apparatus 1 as in the present embodiment, purge gas is supplied to the remaining one heat storage layer 3, and organic matter remaining in the heat storage layer 3 is removed. Then, the heat storage layer 3 serving as an inlet, the heat storage layer 3 serving as an outlet, and the heat storage layer 3 to be purged are operated so as to be switched periodically.
図3〜図5は、このようにして周期的に切換えられる運転状態(流れパターン)をそれぞれ具体的に示したものである。図3に示した状態(流れパターン1)を例に挙げて説明すると、被処理ガス5は、第一の蓄熱層31(図3において左側)を入口として燃焼室2へと導入され、該燃焼室2にてVOC等の有機物が酸化処理され、処理された被処理ガス5は第二の蓄熱層32(図3において中央)を出口として排出され、排気ファン6によって下流側へと送られる。また、第3の蓄熱層33(図3において右側)にはパージ用ブロワ8によってパージガス7が供給される。   3 to 5 specifically show the operation states (flow patterns) that are periodically switched in this way. The state (flow pattern 1) shown in FIG. 3 will be described as an example. The treated gas 5 is introduced into the combustion chamber 2 with the first heat storage layer 31 (left side in FIG. 3) as an inlet, and the combustion is performed. An organic substance such as VOC is oxidized in the chamber 2, and the treated gas 5 is discharged from the second heat storage layer 32 (center in FIG. 3) as an outlet and is sent downstream by the exhaust fan 6. The purge gas 7 is supplied to the third heat storage layer 33 (on the right side in FIG. 3) by the purge blower 8.
同様にして、図4に示した状態(流れパターン2)では、第二の蓄熱層32が入口、第三の蓄熱層33が出口、第一の蓄熱層31がパージとされ、図5に示した状態(流れパターン3)では、第三の蓄熱層33が入口、第一の蓄熱層31が出口、第二の蓄熱層32がパージとされ、被処理ガス5の処理が行われる。   Similarly, in the state shown in FIG. 4 (flow pattern 2), the second heat storage layer 32 is the inlet, the third heat storage layer 33 is the outlet, and the first heat storage layer 31 is purged, as shown in FIG. In this state (flow pattern 3), the third heat storage layer 33 is the inlet, the first heat storage layer 31 is the outlet, and the second heat storage layer 32 is purged, and the processing of the gas 5 to be processed is performed.
斯かる構成の蓄熱式脱臭装置1によれば、燃焼室2内には乱流板4が設けられているため、被処理ガス5が該乱流板4の近傍を通過する際には偏流が生じ、渦が形成されることとなる。
特に、本実施形態のように、乱流板4が、被処理ガス5の流れ方向に対して略垂直な方向に離間した4枚の矩形状板材4a、4b、4cおよび4dから構成され、且つ、各板材が、被処理ガスの流れ方向に対して略垂直で且つ放射状に延びる軸線41を基準とし、流れ方向に垂直な状態から同一角度で回転した状態で設置されていれば、被処理ガス5が乱流板4を通過する際に形成される渦により有機物の分解が大幅に促進されるにもかかわらず、圧力損失の増加が抑制できるという顕著な効果を奏するものとなる。
According to the heat storage deodorization apparatus 1 having such a configuration, the turbulent flow plate 4 is provided in the combustion chamber 2, and therefore, when the gas 5 to be processed passes through the vicinity of the turbulent flow plate 4, a drift is generated. Will occur and a vortex will be formed.
In particular, as in the present embodiment, the turbulent flow plate 4 is composed of four rectangular plate members 4a, 4b, 4c and 4d which are separated in a direction substantially perpendicular to the flow direction of the gas 5 to be processed, and If each plate member is installed in a state where it is rotated at the same angle from a state perpendicular to the flow direction with reference to the axis 41 extending substantially perpendicular to the flow direction of the gas to be processed and radially extending, Although the decomposition of the organic substance is greatly accelerated by the vortex formed when 5 passes through the turbulent flow plate 4, there is a remarkable effect that an increase in pressure loss can be suppressed.
さらに、本実施形態のような乱流板4の構成は、流れ方向に対して前後何れの方向に対しても三次元的に略同一の幾何学的配置となっているため、被処理ガス5の流れ方向が逆になった場合でも同様の渦を形成することができる。従って、本実施形態のような3塔式の蓄熱式脱臭装置1においては、図3および図4に示した状態では燃焼室2の左側から右側へと被処理ガス5が流れ、図5に示した状態では燃焼室2の右側から左側へと被処理ガス5が流れることとなるが、本実施形態のような乱流板4を使用することにより、何れの場合であっても略同様の効果を発揮することができる。   Furthermore, the configuration of the turbulent flow plate 4 as in the present embodiment has substantially the same three-dimensional geometrical arrangement in both the front and rear directions with respect to the flow direction. A similar vortex can be formed even when the flow direction of the is reversed. Therefore, in the three-column heat storage deodorization apparatus 1 as in the present embodiment, the gas to be treated 5 flows from the left side to the right side of the combustion chamber 2 in the state shown in FIGS. 3 and 4. In this state, the gas 5 to be treated flows from the right side to the left side of the combustion chamber 2, but by using the turbulent flow plate 4 as in this embodiment, substantially the same effect is obtained in any case. Can be demonstrated.
次に、本発明の蓄熱式脱臭装置の第二実施形態について説明する。図6は、該第二実施形態の蓄熱式脱臭装置1を示した斜視図である。該実施形態の蓄熱式脱臭装置1は、乱流板4の構成を除き、それ以外は前記第一実施形態の蓄熱式脱臭装置1と同様に構成されている。   Next, 2nd embodiment of the thermal storage type deodorizing apparatus of this invention is described. FIG. 6 is a perspective view showing the heat storage deodorizing apparatus 1 of the second embodiment. The heat storage deodorizing apparatus 1 of this embodiment is configured in the same manner as the heat storage deodorizing apparatus 1 of the first embodiment except for the configuration of the turbulent flow plate 4.
図6に示したように、第一実施形態と同様に燃焼室2を3つの領域に区画するように配置された各乱流板4、4は、それぞれ一枚の板材によって構成されている。各乱流板4、4は、被処理ガス5の流路を狭めて該乱流板4の近傍を通過する被処理ガス5の流速を増大させるとともに、被処理ガスの流れを乱すものである。
具体的には、該乱流板4は、その近傍を通過する被処理ガス5の流速が、該燃焼室2への導入部(即ち、前記蓄熱層3の上方)における被処理ガス5の流速に対して2〜6倍、好ましくは3〜5倍となるように、燃焼室2の壁との間隔が設定される。言い換えると、該乱流板4は、燃焼室2における被処理ガス5の流れ方向に垂直な断面積(即ち、被処理ガス5の流路断面積)が、該燃焼室2への導入部(即ち、前記蓄熱層3の上面)に対して1/2〜1/6、好ましくは1/3〜1/5となるように配置される。
As shown in FIG. 6, each turbulent flow plate 4, 4 arranged so as to divide the combustion chamber 2 into three regions as in the first embodiment is composed of a single plate material. Each of the turbulent flow plates 4 and 4 narrows the flow path of the gas to be processed 5 to increase the flow velocity of the gas to be processed 5 passing through the vicinity of the turbulent flow plate 4 and disturb the flow of the gas to be processed. .
Specifically, in the turbulent flow plate 4, the flow velocity of the gas to be treated 5 passing through the vicinity of the turbulent plate 4 is the flow velocity of the gas to be treated 5 in the introduction portion to the combustion chamber 2 (that is, above the heat storage layer 3). The distance from the wall of the combustion chamber 2 is set so as to be 2 to 6 times, preferably 3 to 5 times. In other words, the turbulent flow plate 4 has a cross-sectional area perpendicular to the flow direction of the gas 5 to be processed in the combustion chamber 2 (that is, a cross-sectional area of the flow path of the gas 5 to be processed) introduced into the combustion chamber 2 ( That is, it is arranged so as to be 1/2 to 1/6, preferably 1/3 to 1/5 with respect to the upper surface of the heat storage layer 3.
斯かる第二実施形態の蓄熱式脱臭装置1によれば、乱流板4によって被処理ガス5の流れ方向下流側において略垂直方向の大きな渦を形成することができ、VOC等の燃焼効率を向上させることができる。また、該乱流板4は比較的単純な構造であるため、設備費が安価になるという効果がある。   According to the heat storage deodorizing apparatus 1 of the second embodiment, a large vortex in a substantially vertical direction can be formed by the turbulent flow plate 4 on the downstream side in the flow direction of the gas 5 to be processed, and combustion efficiency such as VOC can be improved. Can be improved. Further, since the turbulent flow plate 4 has a relatively simple structure, there is an effect that the equipment cost is reduced.
次に、本発明の蓄熱式脱臭装置の第三実施形態について説明する。図7は、該第三実施形態の蓄熱式脱臭装置1を示した斜視図である。該実施形態の蓄熱式脱臭装置1についても、乱流板4の構成を除き、それ以外は前記第一実施形態の蓄熱式脱臭装置1と同様に構成されている。   Next, a third embodiment of the heat storage deodorizer of the present invention will be described. FIG. 7 is a perspective view showing the heat storage deodorizing apparatus 1 of the third embodiment. The heat storage deodorization apparatus 1 of this embodiment is also configured in the same manner as the heat storage deodorization apparatus 1 of the first embodiment except for the configuration of the turbulent flow plate 4.
図7に示したように、前記第一実施形態と同様に燃焼室2を3つの領域に区画するように配置された二組の乱流板4、4は、それぞれ複数枚の帯状板材42、42・・・より構成され、該帯状板材42、42・・・が略等間隔をあけて縦方向に配置されている。そして、斯かる構成により、各帯状板材42、42・・・の間には、被処理ガス5を通過させるためのスリット43、43・・・が形成されている。   As shown in FIG. 7, the two sets of turbulent flow plates 4 and 4 arranged to divide the combustion chamber 2 into three regions as in the first embodiment are each composed of a plurality of strip-shaped plate members 42, The belt-like plate members 42, 42,... Are arranged in the vertical direction at substantially equal intervals. And by such a structure, slit 43, 43 ... for allowing the to-be-processed gas 5 to pass is formed between each strip | belt-shaped board | plate materials 42, 42 ....
具体的には、該乱流板4は、スリット43を通過する被処理ガス5の流速が、該燃焼室2への導入部(即ち、前記蓄熱層3の上方)における被処理ガス5の流速に対して2〜6倍、好ましくは3〜5倍となるように、帯状板材42の面積および間隔が設定される。言い換えると、該乱流板4は、燃焼室2における被処理ガス5の流れ方向に垂直な断面積(即ち、スリットの合計面積)が、該燃焼室2への導入部(即ち、前記蓄熱層3の上面)に対して1/2〜1/6、好ましくは1/3〜1/5となるように構成される。   Specifically, in the turbulent flow plate 4, the flow velocity of the gas to be treated 5 passing through the slit 43 is the flow velocity of the gas to be treated 5 in the introduction portion to the combustion chamber 2 (that is, above the heat storage layer 3). The area and interval of the belt-like plate material 42 are set so as to be 2 to 6 times, preferably 3 to 5 times as large as the above. In other words, the turbulent flow plate 4 has a cross-sectional area perpendicular to the flow direction of the gas to be treated 5 in the combustion chamber 2 (that is, the total area of the slits) that is introduced into the combustion chamber 2 (that is, the heat storage layer). 3 to 1/6, preferably 1/3 to 1/5.
斯かる第三実施形態の蓄熱式脱臭装置1によれば、乱流板4によって被処理ガス5の流れ方向下流側において略水平方向の小さな渦を多数形成することができ、VOC等の燃焼効率を向上させることができる。   According to the heat storage deodorizing apparatus 1 of the third embodiment, the turbulent flow plate 4 can form a large number of small vortices in the substantially horizontal direction on the downstream side in the flow direction of the gas 5 to be processed, and combustion efficiency such as VOC Can be improved.
以上、第一乃至第三実施形態を挙げて本発明の蓄熱式脱臭装置について説明したが、本発明の蓄熱式脱臭装置は、上記のような実施形態に限定されるものではない。
即ち、本発明における乱流板としては、第一実施形態に示した四角形の板材以外にも、例えば三角形等の他の多角形や円形、その他任意の形状の板材を組み合わせた乱流板を使用することができる。また、構成枚数についても特に限定されず、加熱処理領域の形状や、板材の形状に合わせて適宜任意の枚数を選択することができる。さらに、板状ではない各種形状の構造物を配置し、乱流板を構成してもよい。
さらに、加熱処理領域を構成する壁自体の形状により、前記乱流板と同様の効果を発揮させるようにしてもよい。
The heat storage deodorization apparatus of the present invention has been described with reference to the first to third embodiments, but the heat storage deodorization apparatus of the present invention is not limited to the above embodiment.
That is, as the turbulent flow plate in the present invention, in addition to the rectangular plate material shown in the first embodiment, for example, a turbulent flow plate in which other polygonal shapes such as a triangle, a circular plate, or other arbitrary shape plate material is combined is used. can do. Further, the number of components is not particularly limited, and any number can be appropriately selected according to the shape of the heat treatment region and the shape of the plate material. Furthermore, the structure of various shapes which are not plate-shaped may be arrange | positioned, and a turbulent flow plate may be comprised.
Furthermore, you may make it exhibit the effect similar to the said turbulent flow plate with the shape of the wall itself which comprises a heat processing area | region.
また、前記実施形態は、何れも3塔式の蓄熱式脱臭装置を例に挙げて説明したが、その他の多塔式であってもよく、回転式であってもよい。   Moreover, although the said embodiment mentioned and demonstrated all the 3 tower type thermal storage deodorizing apparatuses as an example, another multi-column type may be sufficient and a rotary type may be sufficient.
さらに、前記実施形態では、被処理ガスを加熱処理する方式として、有機物を酸化分解する方式を例に挙げて説明したが、本発明はこれに限定されず、その他の加熱処理方式、例えば、熱分解、触媒による分解等を採用することができる。   Furthermore, in the above embodiment, as a method for heat-treating the gas to be treated, a method for oxidizing and decomposing organic substances has been described as an example. However, the present invention is not limited to this, and other heat treatment methods such as heat Decomposition, decomposition with a catalyst, or the like can be employed.
蓄熱式脱臭装置の第一実施形態を示した斜視図。The perspective view which showed 1st embodiment of the thermal storage type deodorizing apparatus. 第一実施形態における乱流板の形状を示した図であり、(a)は流れ方向より見た立面図、(b)は垂直方向上側より見た平面図。It is the figure which showed the shape of the turbulent flow board in 1st embodiment, (a) is the elevation seen from the flow direction, (b) is the top view seen from the perpendicular direction upper side. 第一実施形態の蓄熱式脱臭装置において、被処理ガスの流れパターン1を示した図。The figure which showed the flow pattern 1 of to-be-processed gas in the thermal storage type deodorizing apparatus of 1st embodiment. 第一実施形態の蓄熱式脱臭装置において、被処理ガスの流れパターン2を示した図。The figure which showed the flow pattern 2 of to-be-processed gas in the thermal storage type deodorizing apparatus of 1st embodiment. 第一実施形態の蓄熱式脱臭装置において、被処理ガスの流れパターン3を示した図。The figure which showed the flow pattern 3 of to-be-processed gas in the thermal storage type deodorizing apparatus of 1st embodiment. 蓄熱式脱臭装置の第二実施形態を示した斜視図。The perspective view which showed 2nd embodiment of the thermal storage type deodorizing apparatus. 蓄熱式脱臭装置の第三実施形態を示した斜視図。The perspective view which showed 3rd embodiment of the thermal storage type deodorizing apparatus. 従来の蓄熱式脱臭装置を示した斜視図。The perspective view which showed the conventional heat storage type deodorizing apparatus.
符号の説明Explanation of symbols
1 蓄熱式脱臭装置
2 燃焼室
3 蓄熱層
4 乱流板
5 被処理ガス
1 Thermal Storage Deodorizer 2 Combustion Chamber 3 Thermal Storage Layer 4 Turbulent Plate 5 Gas to be treated

Claims (8)

  1. 加熱処理領域と、複数の蓄熱領域とを備えてなり、一の蓄熱領域を通過させることによって予熱した被処理ガスを加熱処理領域へと導入し、該加熱処理領域にて被処理ガスを熱処理し、熱処理された被処理ガスを他の蓄熱領域を通して排出することによって該他の蓄熱領域が加熱されるように構成された蓄熱式脱臭装置において、
    前記加熱処理領域に、前記被処理ガスの乱れを促進する乱流板が設けられたことを特徴とする蓄熱式脱臭装置。
    A heat treatment region and a plurality of heat storage regions are provided, and a gas to be treated preheated by passing through one heat storage region is introduced into the heat treatment region, and the gas to be treated is heat-treated in the heat treatment region. In the regenerative deodorizing apparatus configured to heat the other heat storage area by discharging the heat-treated gas through the other heat storage area,
    A regenerative deodorizing apparatus according to claim 1, wherein a turbulent flow plate that promotes turbulence of the gas to be treated is provided in the heat treatment region.
  2. 前記乱流板が複数枚の板材からなり、前記被処理ガスの流れ方向に対して略垂直な面方向に離間して配置されたことを特徴とする請求項1記載の蓄熱式脱臭装置。   The regenerative deodorization apparatus according to claim 1, wherein the turbulent flow plate is made of a plurality of plate members and is spaced apart in a plane direction substantially perpendicular to the flow direction of the gas to be processed.
  3. 前記乱流板が複数枚の板材からなり、隣接する板材が相互に異なる方向に傾斜して配置されたことを特徴とする請求項1又は2記載の蓄熱式脱臭装置。   The regenerative deodorization apparatus according to claim 1 or 2, wherein the turbulent flow plate is composed of a plurality of plate materials, and adjacent plate materials are arranged to be inclined in different directions.
  4. 前記板材が、前記被処理ガスの流れ方向に対して略垂直で且つ放射状に延びる軸線を基準とし、被処理ガスの流れ方向に対して垂直となる状態から略同一角度で回転した状態で配置されたことを特徴とする請求項3記載の蓄熱式脱臭装置。   The plate member is arranged in a state of being rotated at substantially the same angle from a state perpendicular to the flow direction of the gas to be processed, with respect to an axis extending substantially perpendicular to the flow direction of the gas to be processed and radially extending. The regenerative deodorizing apparatus according to claim 3, wherein
  5. 前記乱流板の近傍を通過する被処理ガスの流速が、前記加熱処理領域の導入部における流速に対して2〜6倍となるように、該乱流板が構成されたことを特徴とする請求項1〜4の何れかに記載の蓄熱式脱臭装置。   The turbulent flow plate is configured so that the flow velocity of the gas to be processed passing in the vicinity of the turbulent flow plate is 2 to 6 times the flow velocity at the introduction portion of the heat treatment region. The regenerative deodorizing apparatus according to any one of claims 1 to 4.
  6. 前記乱流板が、前記加熱処理領域における被処理ガスの流れ方向の断面積に対して、該流れ方向に垂直な面に該乱流板を投影した投影面積が1/2〜5/6となるように構成されたことを特徴とする請求項1〜5の何れかに記載の蓄熱式脱臭装置。   The projected area obtained by projecting the turbulent plate on a plane perpendicular to the flow direction with respect to the cross-sectional area in the flow direction of the gas to be processed in the heat treatment region is 1/2 to 5/6. The regenerative deodorizing apparatus according to claim 1, wherein the regenerative deodorizing apparatus is configured as described above.
  7. 前記乱流板が、前記加熱処理領域の被処理ガス流れ方向に垂直な断面積のうち、1/2〜5/6を占めるように構成されたことを特徴とする請求項1〜6の何れかに記載の蓄熱式脱臭装置。   The turbulent flow plate is configured to occupy 1/2 to 5/6 in a cross-sectional area perpendicular to the gas flow direction of the heat treatment region. The heat storage type deodorizing device according to claim 1.
  8. 加熱処理領域と、複数の蓄熱領域とを備えてなり、一の蓄熱領域を通過させることによって予熱した被処理ガスを加熱処理領域へと導入し、該加熱処理領域にて被処理ガスを熱処理し、熱処理された被処理ガスを他の蓄熱領域を通して排出することによって該他の蓄熱領域が加熱されるように構成された蓄熱式脱臭装置において、
    前記加熱処理領域の少なくとも一部において、前記被処理ガスの流速が、前記加熱処理領域の導入部における流速に対して2〜6倍となるように構成されたことを特徴とする蓄熱式脱臭装置。
    A heat treatment region and a plurality of heat storage regions are provided, and a gas to be treated preheated by passing through one heat storage region is introduced into the heat treatment region, and the gas to be treated is heat-treated in the heat treatment region. In the regenerative deodorizing apparatus configured to heat the other heat storage area by discharging the heat-treated gas through the other heat storage area,
    A regenerative deodorizing apparatus characterized in that, in at least a part of the heat treatment region, the flow rate of the gas to be treated is 2 to 6 times the flow rate in the introduction portion of the heat treatment region. .
JP2006023302A 2006-01-31 2006-01-31 Heat storage type deodorizing device Pending JP2007205609A (en)

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JPH09189411A (en) * 1996-01-09 1997-07-22 Mitsubishi Heavy Ind Ltd Heat accumulation type heat-exchange type exhaust gas combustion device
JPH09264521A (en) * 1996-03-28 1997-10-07 Cataler Kogyo Kk Heat storage deodorizing processing apparatus
JP2003240223A (en) * 2002-02-19 2003-08-27 Sintokogio Ltd Combustion chamber structure for regenerative combustion equipment

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Publication number Priority date Publication date Assignee Title
JPH09189411A (en) * 1996-01-09 1997-07-22 Mitsubishi Heavy Ind Ltd Heat accumulation type heat-exchange type exhaust gas combustion device
JPH09264521A (en) * 1996-03-28 1997-10-07 Cataler Kogyo Kk Heat storage deodorizing processing apparatus
JP2003240223A (en) * 2002-02-19 2003-08-27 Sintokogio Ltd Combustion chamber structure for regenerative combustion equipment

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* Cited by examiner, † Cited by third party
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WO2014155889A1 (en) * 2013-03-25 2014-10-02 新東工業株式会社 Heat storage-type exhaust gas purification device
JPWO2014155889A1 (en) * 2013-03-25 2017-02-16 新東工業株式会社 Thermal storage exhaust gas purification system
US9726373B2 (en) 2013-03-25 2017-08-08 Sintokogio, Ltd. Heat storage type waste gas purification apparatus

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