JPWO2022091226A5 - Thermal storage combustion deodorizer - Google Patents
Thermal storage combustion deodorizer Download PDFInfo
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- JPWO2022091226A5 JPWO2022091226A5 JP2022538805A JP2022538805A JPWO2022091226A5 JP WO2022091226 A5 JPWO2022091226 A5 JP WO2022091226A5 JP 2022538805 A JP2022538805 A JP 2022538805A JP 2022538805 A JP2022538805 A JP 2022538805A JP WO2022091226 A5 JPWO2022091226 A5 JP WO2022091226A5
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- 238000002485 combustion reaction Methods 0.000 title claims description 21
- 238000005338 heat storage Methods 0.000 claims description 23
- 230000001172 regenerating effect Effects 0.000 claims description 14
- 230000001877 deodorizing effect Effects 0.000 claims description 12
- 238000010926 purge Methods 0.000 claims 8
- 239000000284 extract Substances 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 238000009751 slip forming Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 10
- 239000012855 volatile organic compound Substances 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000791 photochemical oxidant Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005436 troposphere Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Description
【０００１】
技術分野
［０００１］
本発明は、蓄熱燃焼脱臭装置、及び蓄熱燃焼脱臭装置の運転方法に関する。詳しくは、コンパクトな構造により施工性に優れ、被処理ガス中の有機物の分解効率を向上させることができる蓄熱燃焼脱臭装置、及び蓄熱燃焼脱臭装置の運転方法に関するものである。
背景技術
［０００２］
電子写真方式用トナー、合成樹脂、塗料、顔料、医薬品、工業薬品などの化学製品を取り扱う工場などでは、酢酸エチル、トルエン、キシレン、スチレンなどの揮発性有機化合物（ＶＯＣ）を含有する被処理ガスが大量に発生することが知られている。そして、このようなＶＯＣ含有ガスは、ＮＯｘと反応して光化学スモッグを発生するとともに、光化学オキシダントの主成分であるオゾンを対流圏内で増加させ、地球温暖化の要因ともなっている。さらに、これらのＶＯＣ含有ガスは、発ガン性物質を含有するため、例え低濃度であっても人体に健康障害を起こさせることが知られている。
［０００３］
このため、各種の工場などでは、ＶＯＣ含有ガスを無害化処理して大気中に排出している。ＶＯＣ含有ガスの無害化のための処理方法としては、直接燃焼方式、触媒燃焼方式、蓄熱燃焼方式、生物処理方式などがある。このなかでも蓄熱燃焼方式は熱回収効率が高いという利点を有することから、各種の工場では、この蓄熱燃焼方式を採用した蓄熱燃焼脱臭装置（Ｒｅｇｅｎｅｒａｔｉｖｅ Ｔｈｅｒｍａｌ Ｏｘｉｄｉｚｅｒ：ＲＴＯ）が広く普及している。
［０００４］
この蓄熱燃焼脱臭装置は、未処理のＶＯＣ含有ガス（以下、「被処理ガス」という。）を蓄熱材に流通させて予熱した後、炉に導入して被処理ガスを燃焼室で燃焼して無害化処理し、高温となっている処理済みガス（以下、「[0001]
Technical field [0001]
The present invention relates to a regenerative combustion deodorizing device and a method of operating the regenerative combustion deodorizing device. More specifically, the present invention relates to a regenerative combustion deodorizing device and a method of operating the regenerative combustion deodorizing device, which is compact in structure and excellent in workability and capable of improving the decomposition efficiency of organic substances in the gas to be treated.
BACKGROUND ART [0002]
At factories that handle chemical products such as electrophotographic toner, synthetic resins, paints, pigments, pharmaceuticals, and industrial chemicals, treated gases containing volatile organic compounds (VOCs) such as ethyl acetate, toluene, xylene, and styrene are known to occur in large numbers. Such VOC-containing gas reacts with NOx to generate photochemical smog, and increases ozone, which is the main component of photochemical oxidants, in the troposphere, thereby contributing to global warming. Furthermore, since these VOC-containing gases contain carcinogenic substances, they are known to cause health problems to the human body even at low concentrations.
[0003]
Therefore, in various factories and the like, VOC-containing gases are detoxified and discharged into the atmosphere. Treatment methods for detoxifying VOC-containing gases include direct combustion, catalytic combustion, heat storage combustion, biological treatment, and the like. Among these, the heat storage combustion method has the advantage of high heat recovery efficiency, so in various factories, regenerative thermal oxidizers (RTO) that employ this heat storage combustion method are widely used.
[0004]
In this regenerative combustion deodorizing apparatus, an untreated VOC-containing gas (hereinafter referred to as "treated gas") is circulated through a heat storage material to preheat it, and then introduced into a furnace to burn the treated gas in a combustion chamber. Processed gas that has been detoxified and has a high temperature (hereinafter referred to as "
Claims (6)
該燃焼室に連通するとともに内部に蓄熱体を有し、一の塔内において仕切板により直列的にｎ室（ｎは５以上の整数）に分割形成されて水平方向に延在する複数の蓄熱室からなる蓄熱領域と、を備える蓄熱燃焼脱臭装置において、
前記蓄熱領域の下方に連続的に形成された空間内に、前記蓄熱領域の各蓄熱室に接続され下方に向かって先窄まりであり前記蓄熱領域に残存する被処理ガスをパージするパージ流路、平面視において該パージ流路を挟んで一方側に前記蓄熱領域に接続され前記燃焼室に被処理ガスを給気する給気流路、前記パージ流路を挟んで他方側に前記蓄熱領域の各蓄熱室に接続され前記燃焼室で加熱分解された排気ガスを排気する排気流路がそれぞれ形成され、
一の運転工程において、前記給気流路が連通状態となる複数の蓄熱室から構成された第１グループ、前記第１グループとは異なる蓄熱室であって前記排気流路が連通状態となる前記第１グループと同数の蓄熱室から構成された第２グループ、前記第１グループ及び前記第２グループとは異なる蓄熱室であって前記パージ流路が連通状態となる前記第１グループよりも少ない数の蓄熱室から構成された第３グループに切換制御する切換機構を備える
蓄熱燃焼脱臭装置。a combustion chamber for thermally decomposing the gas to be treated;
A plurality of heat accumulators communicating with the combustion chamber and having heat accumulators therein, divided into n chambers (n is an integer of 5 or more) in series by partition plates in one tower and extending in the horizontal direction A heat storage combustion deodorizing device comprising a heat storage area consisting of a chamber,
A purge flow path connected to each heat storage chamber of the heat storage area and tapered downward in a space continuously formed below the heat storage area for purging the gas to be treated remaining in the heat storage area. In a plan view, an air supply passage connected to the heat storage area and supplying the gas to be processed to the combustion chamber is provided on one side across the purge passage, and the heat storage area is provided on the other side across the purge passage. an exhaust flow path connected to the heat storage chamber and exhausting the exhaust gas thermally decomposed in the combustion chamber is formed;
In one operation step, a first group composed of a plurality of heat storage chambers in which the air supply flow path is in communication, and a heat storage chamber different from the first group and in which the exhaust flow path is in communication. A second group composed of the same number of heat storage chambers as the one group, and heat storage chambers different from the first group and the second group, the number of which is smaller than that of the first group in which the purge passages are in communication. A regenerative combustion deodorizing device provided with a switching mechanism for performing switching control to a third group composed of regenerative chambers.
前記第３グループは１室の蓄熱室から構成された
請求項１に記載の蓄熱燃焼脱臭装置。The first group and the second group are composed of (n−1)/2 (n is an odd number of 5 or more) heat storage chambers,
2. The regenerative combustion deodorizing device according to claim 1, wherein the third group comprises one regenerative chamber.
前記一の運転工程の一つ前の運転工程において、前記給気流路が連通されていた所定の蓄熱室を選択して前記パージ流路に連通する
請求項１または２に記載の蓄熱燃焼脱臭装置。Switching control by the switching mechanism in the one operation step includes:
3. The regenerative combustion deodorizing device according to claim 1, wherein in the operating step immediately before the one operating step, a predetermined heat storage chamber to which the air supply channel communicates is selected and communicated with the purge channel. .
前記一の運転工程の一つ前の運転工程において、前記パージ流路が連通されていた所定の蓄熱室を選択して前記排気流路に連通する蓄熱室の一つとする
請求項１から請求項３の何れか一項に記載の蓄熱燃焼脱臭装置。Switching control by the switching mechanism in the one operation step includes:
A predetermined heat storage chamber communicated with the purge passage in the operation step immediately before the one operation step is selected to be one of the heat storage chambers communicating with the exhaust passage. 4. The regenerative combustion deodorizing device according to any one of 3.
前記一の運転工程の一つ前の運転工程において、前記排気流路が連通されていた所定の蓄熱室を選択して前記給気流路に連通する蓄熱室の一つとする
請求項１から請求項４の何れか一項に記載の蓄熱燃焼脱臭装置。Switching control by the switching mechanism in the one operation step includes:
A predetermined heat storage chamber communicated with the exhaust flow path in the operation step immediately before the one operation step is selected to be one of the heat storage chambers communicating with the air supply flow path. 5. The regenerative combustion deodorizing device according to any one of 4.
前記パージ流路は、前記燃焼室から排気ガスを抜き出して前記給気ファンの上流側に環流させる
請求項１から請求項５の何れか一項に記載の蓄熱燃焼脱臭装置。The air supply passage has an air supply fan for supplying the gas to be processed,
The regenerative combustion deodorizing device according to any one of claims 1 to 5, wherein the purge flow path extracts exhaust gas from the combustion chamber and causes it to circulate upstream of the air supply fan.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/040309 WO2022091226A1 (en) | 2020-10-27 | 2020-10-27 | Heat storage combustion deodorizing device and method for operating heat storage combustion deodorizing device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2022091226A1 JPWO2022091226A1 (en) | 2022-05-05 |
| JPWO2022091226A5 true JPWO2022091226A5 (en) | 2022-10-11 |
| JP7158095B2 JP7158095B2 (en) | 2022-10-21 |
Family
ID=81382213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022538805A Active JP7158095B2 (en) | 2020-10-27 | 2020-10-27 | Thermal storage combustion deodorizer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7158095B2 (en) |
| CN (1) | CN115335637A (en) |
| WO (1) | WO2022091226A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5259757A (en) * | 1992-02-27 | 1993-11-09 | Smith Engineering Company | Method and apparatus for smokeless burnout of regenerative thermal oxidizer systems |
| JP3579176B2 (en) * | 1996-03-28 | 2004-10-20 | トリニティ工業株式会社 | Thermal storage deodorization equipment |
| DE20118418U1 (en) * | 2001-11-14 | 2002-03-21 | Duerr Environmental Gmbh | Exhaust air cleaning device |
| JP6057048B2 (en) * | 2012-03-16 | 2017-01-11 | 株式会社大気社 | Thermal storage gas processing equipment |
| DE102012218776A1 (en) * | 2012-10-15 | 2014-04-17 | Dürr Systems GmbH | System for treatment of gaseous medium, particularly for thermal cleaning of exhaust air containing combustible ingredients, has valves with closing unit and adjusting drive for closing unit adjustment between closing and opening positions |
| JP6486226B2 (en) * | 2015-07-14 | 2019-03-20 | 株式会社大気社 | Switching mechanism in multi-column heat storage deodorization device, multi-column heat storage deodorization device, and operation method of three-column heat storage deodorization device |
| CN211146513U (en) * | 2019-11-27 | 2020-07-31 | 秦皇岛格瑞因环境工程有限公司 | Double-pipeline cleaned RTO heat accumulating type thermal combustion device |
-
2020
- 2020-10-27 WO PCT/JP2020/040309 patent/WO2022091226A1/en active Application Filing
- 2020-10-27 CN CN202080098847.1A patent/CN115335637A/en active Pending
- 2020-10-27 JP JP2022538805A patent/JP7158095B2/en active Active
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