JP2616778B2 - Operating method of the adsorption / desorption device - Google Patents
Operating method of the adsorption / desorption deviceInfo
- Publication number
- JP2616778B2 JP2616778B2 JP62174318A JP17431887A JP2616778B2 JP 2616778 B2 JP2616778 B2 JP 2616778B2 JP 62174318 A JP62174318 A JP 62174318A JP 17431887 A JP17431887 A JP 17431887A JP 2616778 B2 JP2616778 B2 JP 2616778B2
- Authority
- JP
- Japan
- Prior art keywords
- desorption
- adsorption
- switching damper
- damper
- suction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Separation Of Gases By Adsorption (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は複数のエレメント槽から成る吸脱着装置に関
し特に自動車工場等の塗装ブースで発生する溶剤ガスの
処理装置に関するものである。Description: TECHNICAL FIELD The present invention relates to an adsorption / desorption device comprising a plurality of element tanks, and more particularly to a device for treating a solvent gas generated in a coating booth in an automobile factory or the like.
（従来の技術） 従来は、例えば活性炭、好ましくは粒状活性炭あるい
は繊維状活性炭から成るハニカム状ペーパー等による吸
脱着において複数のエレメント槽を用いる場合、第２図
に示すような吸脱着装置によって第３図に示すような運
転をしていた。(Prior Art) Conventionally, when a plurality of element tanks are used for adsorption and desorption with, for example, honeycomb paper made of activated carbon, preferably granular activated carbon or fibrous activated carbon, a third adsorption and desorption device as shown in FIG. He was driving as shown in the figure.
第２図で原ガス（１）は、吸着用ファン（２）にて吸
着用ヘッダー（３）に導入され開状態になっている吸着
入口用切換えダンパー（４）を介してエレメント槽
（６）内の活性炭層（５）で吸着され、清浄空気（９）
となり吸着出口用切換えダンパー（７）を通って排気ダ
クト（８）から系外に排出される。In FIG. 2, the raw gas (1) is introduced into the suction header (3) by the suction fan (2) and is passed through the suction inlet switching damper (4) which is in the open state. Clean air (9) adsorbed by activated carbon layer (5) inside
Then, it is discharged from the exhaust duct (8) to the outside of the system through the suction outlet switching damper (7).
一方脱着用の加熱空気（10）は、脱着用ファン（11）
にて脱着用ヘッダー（12）に導入され開状態になってい
る脱着入口用切換えダンパー（13）を介して前期記載の
エレメント槽（６）に入り、活性炭層に吸着されている
溶剤を脱着する。この脱着ガス（14）は脱着出口用切換
えダンパー（15）を通って連絡ダクト（16）から、例え
ば後処理装置である触媒燃焼装置または直接燃焼装置ま
たは溶剤回収装置の供給ダクトに導入される。このよう
な運転方法としては第３図に示切換え手順に従って行っ
ていた。On the other hand, the heated air for desorption (10) is used for the desorption fan (11).
And enters the element tank (6) described above through the desorption inlet switching damper (13) which is introduced into the desorption header (12) and is opened, and desorbs the solvent adsorbed on the activated carbon layer. . The desorbed gas (14) is introduced from the communication duct (16) through the desorption outlet switching damper (15) to the supply duct of, for example, a catalytic combustion device or a direct combustion device or a solvent recovery device as an after-treatment device. Such an operation method was performed according to the switching procedure shown in FIG.
第３図（ａ）はエレメント槽（Ａ〜Ｆ）が順次吸着と
脱着を繰返す簡易的なタイムチャートを示す。第３図
（ｂ）は第３図（ａ）の切換わり時期に着目し各切換え
ダンパーの開閉状態を縦軸に示したより詳細なタイムチ
ャートである。FIG. 3A shows a simple time chart in which the element tanks (A to F) sequentially repeat adsorption and desorption. FIG. 3 (b) is a more detailed time chart showing the open / close state of each switching damper on the vertical axis, focusing on the switching timing of FIG. 3 (a).
例えば、対象となる２つのエレメント槽の間で吸着と
脱着を切換えるという第３図（ｂ）のような運転方法の
場合、リニアな流動特性を有する切換えダンパーで開閉
する事によって脱着側流体である加熱空気の風量を変動
させる事なく切換える事ができるが、吸着側流体である
原ガスの風量は吸着用ファンが一定速で回転する限り第
３図（ｂ）の時刻t0〜t3,t3〜t6,t6〜t9−−−の間で周
期的に変動していた。For example, in the case of an operation method as shown in FIG. 3B in which adsorption and desorption are switched between two target element tanks, the desorption side fluid is opened and closed by a switching damper having a linear flow characteristic. It is possible to switch without changing the flow rate of the heated air, but the flow rate of the raw gas as the suction-side fluid can be changed as long as the suction fan rotates at a constant speed at times t0 to t3 and t3 to t6 in FIG. , t6 to t9 --- periodically fluctuated.
以上のように、２つのエレメント槽ので吸着と脱着を
切換えるという運転方法では吸着に寄与できるエレメン
ト槽の数が周期的に少なくなってしまう。すなわち、吸
着に寄与できるエレメント槽の数が少なくなればエレメ
ント槽内に装着された活性炭層を通過する原ガスの線速
度が増し除去性能の低下につながる。一方、この場合と
は逆に脱着に寄与できるエレメント槽の数が周期的に少
なくなれば脱着ガスの風量が変動し後処理装置の操作あ
るいは制御への悪影響が予想され総合的なシステムとし
ては価値の低いものになってしまう。As described above, in the operation method of switching between adsorption and desorption in two element tanks, the number of element tanks that can contribute to adsorption decreases periodically. That is, if the number of element tanks that can contribute to the adsorption decreases, the linear velocity of the raw gas passing through the activated carbon layer installed in the element tank increases, leading to a decrease in the removal performance. On the other hand, on the contrary, if the number of element tanks that can contribute to desorption decreases periodically, the flow rate of the desorption gas fluctuates and adversely affects the operation or control of the post-processing device, and it is valuable as a comprehensive system. Will be low.
（発明が解決しようとする問題点） 本発明の目的は、吸着側および脱着側の線速度を変動
させる事なく性能を向上させ、後処理装置への悪影響を
低減させる吸脱着装置の運転方法を提供するものであ
る。(Problems to be Solved by the Invention) An object of the present invention is to provide a method of operating an adsorption / desorption apparatus which improves performance without changing the linear velocities on the adsorption side and the desorption side and reduces adverse effects on a post-processing apparatus. To provide.
（問題点を解決するための手段） 吸着入口用切換えダンパーと吸着出口用切換えダンパ
ーおよび脱着入口用切換えダンパーおよび脱着入力用切
換えダンパーと脱着出口用切換えダンパーを少なくとも
各１個具備した複数のエレメント槽から成る吸脱着装置
において、脱着末期にあるエレメント槽（Ａ）の脱着入
口用切換えダンパーおよび脱着出口用切換えダンパーが
全開から全閉状態に作動する間に一方で吸着完了状態に
あるエレメント槽（Ｂ）の脱着入口用切換えダンパーお
よび脱着出口用切換えダンパーが全閉から全開状態に作
動し、上記記載の該ダンパー動作完了後、該エレメント
槽（Ａ）の吸着入口用切換えダンパーおよび吸着出口用
切換えダンパーが全閉から全開状態に作動する間に一方
で吸着末期にあるエレメント槽（Ｃ）の吸着入口用切換
えダンパーおよび吸着出口用切替えダンパーが全開から
全閉状態に作動するという工程が順次同様にして１サイ
クルあたりエレメント槽の数だけ繰返され吸着と脱着が
連続的に切替わっていく事により吸着側および脱着側の
エレメント通過風速を変動させる事なく運転できること
を特徴とする吸脱着装置の運転方法である。(Means for Solving the Problems) A plurality of element tanks each provided with at least one of a suction inlet switching damper, a suction outlet switching damper, a desorption inlet switching damper, a desorption input switching damper, and a desorption outlet switching damper. In the adsorption / desorption device comprising the element tank (A), the element tank (B) is in the adsorption complete state while the switching damper for the desorption inlet and the switching damper for the desorption outlet of the element tank (A) at the end of desorption are operated from the fully open state to the fully closed state. The switching damper for the desorption entrance and the switching damper for the desorption exit are operated from the fully closed state to the fully opened state, and after the operation of the damper described above is completed, the switching damper for the adsorption inlet and the switching damper for the adsorption outlet of the element tank (A). While the valve operates from the fully closed state to the fully open state, the suction of the element tank (C) at the end of The process in which the switching damper for the inlet and outlet and the switching damper for the suction outlet are operated from fully open to fully closed is sequentially repeated in the same manner as the number of element tanks per cycle, and the adsorption and desorption are continuously switched. An operation method of the adsorption / desorption device, wherein the operation can be performed without changing the wind speed passing through the elements on the adsorption side and the desorption side.
また、本発明の方法において始動から停止までの時間
が等しくかつリニアな流量特性を有する切換えダンパー
を用いて同時に作動を開始する事により吸着側および脱
着側の線速度の変動を極端に少なくすることができる。Further, in the method of the present invention, the fluctuations in the linear velocities on the suction side and the desorption side are extremely reduced by simultaneously starting the operations using the switching dampers having the same time from start to stop and having linear flow characteristics. Can be.
以下に、本発明を図面に基づき説明する。 Hereinafter, the present invention will be described with reference to the drawings.
第１図（ａ）は、常に４槽が吸着に１槽が脱着に寄与
している前記記載の吸脱着装置において切換えダンパー
の開閉状態を縦軸に示したタイムチャートである。ここ
で図中、時刻t0〜t1はＡ槽の脱着用ダンパーが全閉から
全開およびＦ槽の脱着用ダンパーが全開から全閉に作動
している事を示し、時刻t1〜t2はＦ槽の脱着用ダンパー
が全閉から全開およびＢ槽の吸着用ダンパーが全開から
全閉に作動している事を示している。このように１サイ
クルの時間をエレメント槽の数で割った時間を１工程時
間と称し、この１工程時間の1/2に相当する時間で切換
えダンパーを全閉から全開あるいは全開から全閉に作動
させる事を基本とする。FIG. 1 (a) is a time chart in which the vertical axis indicates the open / closed state of the switching damper in the above described adsorption / desorption apparatus in which four tanks always contribute to adsorption and one tank contributes to desorption. Here, in the figure, the time t0 to t1 indicates that the demounting damper of the tank A operates from fully closed to fully open and the demounting damper of the tank F operates from fully open to fully closed, and the time t1 to t2 indicates that the damper of the tank F is operated. This shows that the demounting damper operates from fully closed to fully open, and the suction damper of the tank B operates from fully open to fully closed. The time obtained by dividing the time of one cycle by the number of element tanks is called one process time, and the damper is switched from fully closed to fully open or from fully open to fully closed in a time equivalent to 1/2 of this one process time. Basically, let them do it.
本発明はこの１工程時間内に３つのエレメント槽の間
で吸着と脱着を切替えることにより風速変動を少なくす
る事を可能にした点に新しい発想および特徴がある。The present invention has a new idea and feature in that it is possible to reduce wind speed fluctuation by switching between adsorption and desorption between the three element tanks within this one process time.
第１図（ｂ）は常に３槽が吸着に２槽が脱着に寄与し
ている前記記載の吸脱着装置において切換えダンパーの
開閉状態を縦軸に示したタイムチャートである。ここで
は常に２槽が脱着に寄与しているので脱着ガスの濃度が
平均化され１槽脱着に比べ濃度変動の少ない脱着ガスと
して後処理装置へ供給される。このため後処理装置への
悪影響がより低減される。FIG. 1 (b) is a time chart in which the vertical axis indicates the open / closed state of the switching damper in the above described adsorption / desorption apparatus in which three tanks always contribute to adsorption and two tanks contribute to desorption. Here, since the two tanks always contribute to desorption, the concentration of the desorption gas is averaged and supplied to the post-processing apparatus as a desorption gas having a smaller concentration fluctuation than in the desorption of one tank. Therefore, adverse effects on the post-processing device are further reduced.
第１図（ｃ）および（ｄ）は、前記記載した１工程時
間内に吸着用および脱着用のタンパーの作動が完了（時
刻t0〜t1）し、時刻t1〜t2間ダンパーはt1の状態を継続
中である事を示している。その中で、第１図（ｃ）は常
に４槽が吸着に１槽が脱着に寄与し、また第１図（ｄ）
は常に３槽が吸着に２槽が脱着に寄与している事を示す
タイムチャートである。FIGS. 1 (c) and (d) show that the operation of the tamper for adsorption and desorption is completed (time t0 to t1) and the damper is in the state of t1 between time t1 and t2 within the above-described one process time. Indicates that it is ongoing. Among them, FIG. 1 (c) shows that four tanks always contribute to adsorption and one tank contributes to desorption, and FIG. 1 (d)
Is a time chart showing that three tanks always contribute to adsorption and two tanks contribute to desorption.
なお、前記記載の吸着および脱着の設定数は一例であ
り何らこれらに限定されるものではない。また、ダンパ
ー作動のための駆動源としては電気、空気圧、油圧が一
般的であり、他に手動なども考えられる。The set numbers of the adsorption and desorption described above are merely examples, and the present invention is not limited thereto. Further, as a driving source for operating the damper, electric, pneumatic, and hydraulic pressures are generally used.
（発明の効果） 従来のように２つのエレメント槽の間で吸着と脱着を
切換えるのに対して、３つのエレメント槽の間で吸着と
脱着を切換える事により吸着と脱着を切換えるのに要す
る時間すなわち１工程時間が従来の2/3で済む。従っ
て、同一作動時間を有するダンパーで比較したところ、
１サイクルの時間が短縮でき逆にサイクル数を3/2倍多
くとる事ができるので適用範囲が広くなった。(Effects of the Invention) While switching between adsorption and desorption between two element tanks as in the prior art, the time required to switch between adsorption and desorption by switching between adsorption and desorption between three element tanks, One process time can be reduced to 2/3 of the conventional time. Therefore, comparing dampers with the same operating time,
The time required for one cycle can be reduced, and the number of cycles can be increased by 3/2 times.
また、吸着側の線速度をほぼ一定に保つ事により一時
的な除去性能の低下が生じないため特に高い除去性能域
（95％以上）では有効な手段となる。一方、脱着側の線
速度をほぼ一定に保つ事により後処理装置の処理量が変
動しにくいため運転および制御が容易になり設備費およ
びランニングコストが低減できた。Further, by keeping the linear velocity on the adsorption side substantially constant, there is no temporary decrease in the removal performance, so this is an effective means particularly in a high removal performance range (95% or more). On the other hand, by keeping the linear velocity on the desorption side almost constant, the processing amount of the post-processing device is hardly fluctuated, so that the operation and control become easy, and the equipment cost and the running cost can be reduced.
第１図は、本発明の一例を示すタイムチャートである。 第２図は、従来および本発明に使用できる多槽の吸脱着
装置の一例を示すフローシートである。 第３図は、従来のダンパー切替え方法を示すタイムチャ
ートである。FIG. 1 is a time chart showing an example of the present invention. FIG. 2 is a flow sheet showing an example of a conventional multi-tank adsorption / desorption apparatus that can be used in the present invention. FIG. 3 is a time chart showing a conventional damper switching method.
Claims (2)
換えダンパーおよび脱着入口用切換えダンパーと脱着出
口用切換えダンパーを少なくとも各１個具備した複数の
エレメント槽から成る吸脱着装置において、脱着末期に
あるエレメント槽（Ａ）の脱着入口用切換えダンパーお
よび脱着出口用切換えダンパーが全開から全閉状態に作
動する間に一方で吸着完了状態にあるエレメント槽
（Ｂ）の脱着口用切換えダンパーおよび脱着出口用切換
えダンパーが全閉から全開状態に作動し、上記記載の該
ダンパー動作完了後、該エレメント槽（Ａ）の吸着入口
用切換えダンパーおよび吸着出口用切換えダンパーが全
閉から全開状態に作動する間に一方で吸着末期にあるエ
レメント槽（Ｃ）の吸着入口用切換えダンパーおよび吸
着出口用切換えダンパーが全開から全閉状態に作動する
という工程が順次同様にして１サイクルあたりエレメン
ト槽の数だけ繰返され吸着と脱着が連続的に切換わって
いく事により吸着側および脱着側のエレメント通過風速
を変動させる事なく運転できることを特徴とする吸脱着
装置の運転方法。In a suction / desorption apparatus comprising a plurality of element tanks each having at least one switching damper for a suction inlet and a switching damper for a suction outlet, and a switching damper for a desorption inlet and one for a desorption outlet, at the end of desorption. While the switching damper for the desorption entrance and the switching damper for the desorption exit of the element tank (A) operates from the fully opened state to the fully closed state, the switching damper for the desorption opening and the desorption exit of the element tank (B) which is in the adsorption completed state on the other hand. The switching damper is operated from the fully closed state to the fully opened state, and after the above-described damper operation is completed, the switching damper for the suction inlet and the switching damper for the suction outlet of the element tank (A) are operated from the fully closed state to the fully opened state. On the other hand, a switching damper for the suction inlet and a switching damper for the suction outlet of the element tank (C) in the last stage of the suction. The process of operating from fully open to fully closed state is repeated sequentially in the same number of times as the number of element tanks per cycle, and adsorption and desorption are continuously switched, so that the air passing through the adsorption side and desorption side fluctuates An operation method of an adsorption / desorption device, wherein the operation can be performed without causing the operation.
ーの停止時間を設ける事を特徴とする特許請求の範囲第
１項記載の吸脱着装置の運転方法。2. A method for operating an adsorption / desorption device according to claim 1, wherein a stop time of the damper is provided between the step described in the first step and the next step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62174318A JP2616778B2 (en) | 1987-07-13 | 1987-07-13 | Operating method of the adsorption / desorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62174318A JP2616778B2 (en) | 1987-07-13 | 1987-07-13 | Operating method of the adsorption / desorption device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6418424A JPS6418424A (en) | 1989-01-23 |
| JP2616778B2 true JP2616778B2 (en) | 1997-06-04 |
Family
ID=15976552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62174318A Expired - Fee Related JP2616778B2 (en) | 1987-07-13 | 1987-07-13 | Operating method of the adsorption / desorption device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2616778B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2558451Y2 (en) * | 1992-03-05 | 1997-12-24 | 株式会社東海理化電機製作所 | Vehicle seat |
| JP4770527B2 (en) * | 2006-03-13 | 2011-09-14 | パナソニック株式会社 | Organic solvent concentrator |
| JP4848335B2 (en) * | 2007-09-19 | 2011-12-28 | 月島環境エンジニアリング株式会社 | Gas processing method |
| CN112710160B (en) * | 2019-10-25 | 2023-06-23 | 中冶长天国际工程有限责任公司 | Control method and device for hot air blower during cold start of analytical tower |
-
1987
- 1987-07-13 JP JP62174318A patent/JP2616778B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6418424A (en) | 1989-01-23 |
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| LAPS | Cancellation because of no payment of annual fees |