JPS6341702A - Steam regenerating facility - Google Patents
Steam regenerating facilityInfo
- Publication number
- JPS6341702A JPS6341702A JP61183330A JP18333086A JPS6341702A JP S6341702 A JPS6341702 A JP S6341702A JP 61183330 A JP61183330 A JP 61183330A JP 18333086 A JP18333086 A JP 18333086A JP S6341702 A JPS6341702 A JP S6341702A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- amount
- ejector
- adsorption tank
- desorption
- 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.)
- Granted
Links
- 230000001172 regenerating effect Effects 0.000 title 1
- 238000001179 sorption measurement Methods 0.000 claims description 24
- 230000008929 regeneration Effects 0.000 claims description 22
- 238000011069 regeneration method Methods 0.000 claims description 22
- 238000003795 desorption Methods 0.000 claims description 19
- 239000002918 waste heat Substances 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、蒸気エゼクタを用いた蒸気再生設備に関し、
特に溶剤回収装置用として負荷変動の大きな廃熱を効率
よく回収できるようにした蒸気再生設備に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to steam regeneration equipment using a steam ejector,
In particular, the present invention relates to steam regeneration equipment for use in solvent recovery equipment, which is capable of efficiently recovering waste heat with large load fluctuations.
従来の技術
マ
溶剤回収装置は吸着槽沖簸着された溶剤を脱着蒸気によ
って脱離させ、蒸気と溶剤との混合（蒸留気）液として
コンデンサに送り、冷却凝縮液として溶剤を回収するも
ので、蒸気は捨てられていた。このため、従来において
は蒸気の廃熱を利用する設備、すなわち廃熱により蒸気
を再生し、この再生蒸気を溶剤の脱着蒸気に加えて蒸気
源からの蒸気量を節減するようにした蒸気エゼクタ方式
の蒸気再生設備が設けられている。Conventional technology Solvent recovery equipment uses desorption steam to desorb the solvent from the adsorption tank, sends it to a condenser as a mixture of steam and solvent (distilled vapor), and recovers the solvent as a cooled condensate. , the steam had been dumped. For this reason, in the past, equipment that utilizes the waste heat of steam, namely the steam ejector system, which regenerates steam using the waste heat and adds this regenerated steam to the solvent desorption steam to reduce the amount of steam from the steam source. Steam regeneration equipment is installed.
この蒸気再生設備は、第３図に示したように、吸着槽１
１からの混合液を廃熱の熱源をして蒸発器１２に供給す
る。蒸発器１２ではこれに供給されている軟水（図示し
ない）か加熱されて再生蒸気１５七なり、蒸気エゼクタ
１３に吸引される。蒸気エゼクタ１３はエゼクタ駆動蒸
気１７を受け、吸着槽１１へ脱着蒸気１６を供給する。As shown in Fig. 3, this steam regeneration equipment consists of an adsorption tank 1
The mixed liquid from 1 is supplied to the evaporator 12 as a heat source of waste heat. In the evaporator 12, the soft water (not shown) supplied thereto is heated to become regenerated steam 157, which is sucked into the steam ejector 13. Steam ejector 13 receives ejector driving steam 17 and supplies desorption steam 16 to adsorption tank 11 .
脱着工程の開始時は、吸着槽１１の内部温度かは乾燥状
態であり、その通気抵抗は少ない。吸着槽１１および活
性炭が脱着蒸気１６により十分に予熱されると、吸着槽
１１は廃熱を送出するようになり、一方、活性炭は、９
度が増して、通気抵抗が高くなる。このため、駆動蒸気
１７の供給量の変化は第４熱時間を過ぎると再生蒸気１
５の吸引が可能となるため駆動蒸気１７は半分の約５０
％に絞られる。このように駆動蒸気１７の制御範囲が広
いので、蒸気エゼクタ１３の効率はあまり良（ない。At the start of the desorption process, the internal temperature of the adsorption tank 11 is in a dry state, and its ventilation resistance is low. When the adsorption tank 11 and the activated carbon are sufficiently preheated by the desorption steam 16, the adsorption tank 11 begins to deliver waste heat, while the activated carbon
As the temperature increases, the ventilation resistance increases. For this reason, the change in the supply amount of the driving steam 17 changes after the fourth thermal time, the regeneration steam 1
Since the suction of 5 is possible, the driving steam 17 is about 50
narrowed down to %. Since the control range of the drive steam 17 is thus wide, the efficiency of the steam ejector 13 is not very good.
また、蒸発器１２で蒸発する再生蒸気１５は蒸発器１２
への廃熱流入量か変動すると大きく変動し、予熱時間以
降の吸着槽１１の入口における脱着蒸気１気
は、第４図（ｂ）に示すように、余剰再生蒸発量分だけ
多くなっている。In addition, the regenerated steam 15 evaporated in the evaporator 12 is
When the amount of waste heat flowing into the adsorption tank 11 changes, the amount of desorption vapor at the inlet of the adsorption tank 11 after the preheating time increases by the amount of excess regenerated evaporation, as shown in FIG. 4(b). .
発明が解決しようとする問題点
本発明は、従来の蒸気再生設備では蒸気＾量の変動幅が
非常に大きいため蒸気エゼクタの効率低下が生じ、また
、蒸気エゼクタの出口蒸気量についても吸込側蒸気量（
再生蒸気量）により大きく変動してしまうことに対して
なされたもので、蒸気エゼクタの効率を向上させ、蒸気
エゼクタの出口蒸気量の変動幅を小さくして蒸気再生効
率の向上を計った蒸気再生設備を提供することを目的と
する。Problems to be Solved by the Invention The present invention solves the problem that in conventional steam regeneration equipment, the fluctuation range of the amount of steam is very large, resulting in a decrease in the efficiency of the steam ejector. amount(
This method was developed to address the issue of large fluctuations due to the amount of steam regenerated (regenerated steam amount). Steam regeneration improves the efficiency of the steam ejector and reduces the range of fluctuations in the amount of steam at the outlet of the steam ejector to improve steam regeneration efficiency. The purpose is to provide facilities.
問題点を解決するための手段
本発明によれば、吸着槽からの廃熱を利用して脱着蒸気
量を節減する蒸気エゼクタ方式の溶剤回収装置用蒸気再
生設備において、蒸気エゼクタをバイパスさけるバイパ
ス配管と、このバイパス配管の蒸気の流量を調節する第
！の機構と、蒸気エゼクタ駆動用蒸気の流量を調節する
第２の機構と、吸着槽への脱着蒸気の流量を検出して前
記第１および第２の機構を制御する手段とを備えて、溶
剤回収装置特有の負荷変動の大きい廃熱を効率よく回収
できることを特徴とする蒸気再生設備が提供される。特
に第１の機構はバイパス制御弁、第２の機構はエゼクタ
駆動用蒸気制御弁とすることができる。Means for Solving the Problems According to the present invention, in a steam regeneration facility for a steam ejector-type solvent recovery device that uses waste heat from an adsorption tank to reduce the amount of desorption steam, there is provided a bypass piping that bypasses a steam ejector. And the second step is to adjust the steam flow rate of this bypass piping! a mechanism for controlling the first and second mechanisms, a second mechanism for adjusting the flow rate of steam for driving a steam ejector, and means for detecting the flow rate of desorption steam to the adsorption tank to control the first and second mechanisms, A steam regeneration facility is provided that is characterized by being able to efficiently recover waste heat that is subject to large load fluctuations that are unique to a recovery device. In particular, the first mechanism can be a bypass control valve and the second mechanism can be a steam control valve for driving the ejector.
作用
蒸気エゼクタをバイパスさせるバイパス配管の設置によ
り、予熱時間中の駆動蒸気は蒸気エゼクタとバイパス配
管とが受は持つため、蒸気エゼクタの処理容量は最小限
で済み、蒸気エゼクタはコンパクトになるだけでなくそ
の効率が向上させられることになる。By installing a bypass piping that bypasses the working steam ejector, the driving steam during the preheating time is received by the steam ejector and the bypass piping, so the processing capacity of the steam ejector can be minimized, and the steam ejector can only be made more compact. This will improve its efficiency.
また、吸着槽入口蒸気量を監視してその変動を小さくし
て蒸発器への廃熱流入量を一定にしたことにより蒸気再
生効率を向上させている。In addition, steam regeneration efficiency is improved by monitoring the amount of steam at the adsorption tank inlet and reducing its fluctuations to keep the amount of waste heat flowing into the evaporator constant.
実施例
第１図は本発明による設備の構成を示す。第１図におい
て、符号１１は吸着槽、１２は蒸発器、１３は蒸気エゼ
クタ、１４は流量検知器、１５は再生蒸気、１６は脱着
蒸気、１７はエゼクタ駆動蒸気、１８はパイ吸着槽１１
の予熱時間中は、蒸発器１２への廃熱流入量がないので
再生蒸気１５の発生はない。このため、予熱時の最大蒸
気量を確保するのに再生蒸気量分を蒸気エゼクタ１３の
バイパス配管１８により流すようにする。つまり、バイ
パス制御弁１９および駆動用蒸気制御弁２０をそれぞれ
全開とし、バイパス配管１８および蒸気エゼクタ１３に
吸着槽１１の定格蒸気量の約半分ずつ流して１００％の
脱着蒸気量を得ている。Embodiment FIG. 1 shows the configuration of equipment according to the present invention. In FIG. 1, reference numeral 11 is an adsorption tank, 12 is an evaporator, 13 is a steam ejector, 14 is a flow rate detector, 15 is regeneration steam, 16 is desorption steam, 17 is ejector driving steam, and 18 is a pie adsorption tank 11.
During the preheating time, no waste heat flows into the evaporator 12, so no regeneration steam 15 is generated. Therefore, in order to ensure the maximum amount of steam during preheating, the amount of regenerated steam is made to flow through the bypass pipe 18 of the steam ejector 13. That is, the bypass control valve 19 and the driving steam control valve 20 are each fully opened, and approximately half of the rated steam amount of the adsorption tank 11 is allowed to flow through the bypass pipe 18 and the steam ejector 13 to obtain 100% desorption steam amount.
予熱時間以降は、蒸発器１２からの蒸気の再生が開始さ
れるため、バイパス制御弁１９は蒸気エゼクタ１３の出
口側に設置された流ｍ検知器１４の制御により、再生蒸
気１に応じて絞られ、吸着槽入口の脱着蒸気量が一定と
なるように自動調節される。After the preheating time, the regeneration of the steam from the evaporator 12 is started, so the bypass control valve 19 is throttled according to the regenerated steam 1 under the control of the flow m detector 14 installed on the outlet side of the steam ejector 13. The amount of desorbed steam at the inlet of the adsorption tank is automatically adjusted to be constant.
バイパス制御弁１９が完全に絞られて蒸発器１２からの
再生蒸気量が規定量を越えると、駆動用蒸気制御弁２０
が流量検知器１４の制御により自動調整されて一定の脱
着蒸気量にされる。When the bypass control valve 19 is completely throttled and the amount of regenerated steam from the evaporator 12 exceeds the specified amount, the drive steam control valve 20
is automatically adjusted under the control of the flow rate detector 14 to maintain a constant amount of desorption vapor.
第２図を参照して更に詳述する。This will be explained in further detail with reference to FIG.
第２図（ａ）は再生蒸気量の変化を示している。FIG. 2(a) shows the change in the amount of regenerated steam.
ここで、Ａをエゼクタ方式による使用蒸気量、Ｂをエゼ
クタ方式による再生蒸気量、Ｃを蒸発器への廃熱流入量
の変動による余剰再生蒸気量を示している。ここで、蒸
気再生効率ηは、
脱着１回に必要な蒸気量
で示されている。このため、蒸気再生効率の向上を計る
ためには、余剰再生蒸気ＭＣの分だけエゼクタ駆動蒸気
を絞る必要がある。これは第２図（ｃ）のところで説明
する。Here, A is the amount of steam used by the ejector method, B is the amount of regenerated steam by the ejector method, and C is the amount of surplus regenerated steam due to fluctuations in the amount of waste heat flowing into the evaporator. Here, the steam regeneration efficiency η is expressed as the amount of steam required for one desorption. Therefore, in order to improve the steam regeneration efficiency, it is necessary to reduce the ejector driving steam by the amount of surplus regenerated steam MC. This will be explained in FIG. 2(c).
第２図（ｂ）は蒸気エゼクタのバイパス配管を流れる蒸
気量の変化を示している。予熱時間中（１＋まで）は脱
着１回に必要な蒸気量の１７２をバイパス配管を通じて
吸着槽に流し、予熱時間経過後は再生蒸気量に応じて蒸
気量が減少される。FIG. 2(b) shows changes in the amount of steam flowing through the bypass piping of the steam ejector. During the preheating time (up to 1+), the amount of steam required for one desorption, 172, flows into the adsorption tank through the bypass piping, and after the preheating time has passed, the amount of steam is reduced in accordance with the amount of regenerated steam.
第２図（ｃ）は駆動蒸気量の変化を示している。FIG. 2(c) shows the change in the amount of driving steam.
予熱時間中（１，まで）は、バイパス蒸気量同様、脱着
１回に必要な蒸気量の１７２を吸着槽に流す。During the preheating time (up to 1), the amount of steam required for one desorption, 172, is flowed into the adsorption tank, similar to the amount of bypass steam.
予熱時間以降は再生蒸気の吸引が可能となるため、予熱
時間中同様、１／２の蒸気量を継続して吸着槽に流す。After the preheating time, the regenerated steam can be sucked, so that 1/2 the amount of steam is continuously flowed into the adsorption tank as during the preheating time.
時間ｔ、以降は再生蒸気量が１７２を越えるので（第２
図（ａ）参照）この余剰再生蒸気量の分だけ駆動蒸気量
は絞られる。After time t, the amount of regenerated steam exceeds 172 (second
(See Figure (a)) The amount of driving steam is reduced by this amount of surplus regenerated steam.
第２図（ｄ）は吸着槽入口蒸気量の変化を示す乙ので、
上述のようにｔ、からｔ、まではバイパス制御弁により
、し、以降は駆動用蒸気制御弁により蒸気量の調節の結
果、脱着開始から脱着終了まで吸着槽入口蒸気量は一定
に保たれろことになる。Figure 2(d) shows the change in the amount of steam at the inlet of the adsorption tank.
As mentioned above, the amount of steam at the adsorption tank inlet is kept constant from the start of desorption to the end of desorption as a result of adjusting the amount of steam by the bypass control valve from t to t, and thereafter by the driving steam control valve. become.
発明の効果 本発明によれば以下の効果を奏する。Effect of the invention According to the present invention, the following effects are achieved.
従来ではエゼクタの駆動蒸気の制御範囲が広く、またエ
ゼクタ本体の処理容量を予熱時間中の最大流量に合わせ
てあったのに対し、本発明ではバイパス配管の設置によ
り、従来の処理容ｌの半分でよくエゼクタ本体を小型の
ものにすることができ、しかも制御範囲は余剰再生蒸気
ｍの補正範囲という非常に狭いためエゼクタの効率低下
が非常に少ない。In the past, the drive steam of the ejector had a wide control range, and the processing capacity of the ejector body was adjusted to the maximum flow rate during the preheating time, but in the present invention, by installing bypass piping, the processing capacity of the conventional ejector can be reduced by half. The ejector body can be easily made compact, and the control range is very narrow, that is, the correction range of surplus regenerated steam m, so that the efficiency of the ejector is very little reduced.
従来では吸着槽入口蒸気量が余剰に再生した蒸気量分だ
け変動していたのに対し本発明では一定に維持されるの
で蒸発器への廃熱流入量も変動することがなく、この結
果、蒸気再生効率の向上がIn the past, the amount of steam at the inlet of the adsorption tank varied by the amount of surplus regenerated steam, but in the present invention, it is maintained constant, so the amount of waste heat flowing into the evaporator does not fluctuate, and as a result, Improved steam regeneration efficiency
第１図は本発明による蒸気再生設備の構成を示す図、第
２図（ａ）〜（ｄ）は第１図の設備の要部における蒸気
量の変化を示す図、第３図は従来の蒸気再生設備の構成
を示す図、第４図（ａ）および（ｂ）は第３図の設備の
要部における蒸気量の変化を示す図である。
１１・・吸着槽、１２・・蒸発器、１３・・蒸気エゼク
タ、１４・・流量検出器、１５・・再生蒸気、１６・・
脱着蒸気、１７・・エゼクタ駆動蒸気、１８・・バイパ
ス配管、１９・・バイパス制御弁、２０・・駆動（ほか
１名）
第１図
苫気量（ｒ、） 蓋気号（ｚ）一ミー
情
ぐ′
Ｎ）
嬌
旨
胛ト
μキFigure 1 is a diagram showing the configuration of the steam regeneration equipment according to the present invention, Figures 2 (a) to (d) are diagrams showing changes in the amount of steam in the main parts of the equipment in Figure 1, and Figure 3 is a diagram showing the configuration of the steam regeneration equipment according to the present invention. FIGS. 4(a) and 4(b), which are diagrams showing the configuration of the steam regeneration equipment, are diagrams showing changes in the amount of steam in the main parts of the equipment in FIG. 3. 11...Adsorption tank, 12...Evaporator, 13...Steam ejector, 14...Flow rate detector, 15...Regenerated steam, 16...
Desorption steam, 17... Ejector drive steam, 18... Bypass piping, 19... Bypass control valve, 20... Drive (and 1 other person) Figure 1 Air volume (r) Lid air number (z) Love 'N)
Claims (1)
エゼクタ方式の溶剤回収装置用蒸気再生設備において、
蒸気エゼクタをバイパスさせるバイパス配管と、このバ
イパス配管の蒸気の流量を調節する第１の機構と、蒸気
エゼクタ駆動用蒸気の流量を調節する第２の機構と、吸
着槽への脱着蒸気の流量を検出して前記第１および第２
の機構を制御する手段とを備えてなる蒸気再生設備。In steam regeneration equipment for a steam ejector-type solvent recovery device that uses waste heat from an adsorption tank to reduce the amount of desorption steam,
A bypass piping that bypasses the steam ejector, a first mechanism that adjusts the flow rate of steam in the bypass piping, a second mechanism that adjusts the flow rate of steam for driving the steam ejector, and a second mechanism that adjusts the flow rate of the desorption steam to the adsorption tank. detecting the first and second
A steam regeneration facility comprising means for controlling the mechanism of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61183330A JPH086882B2 (en) | 1986-08-06 | 1986-08-06 | Steam regeneration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61183330A JPH086882B2 (en) | 1986-08-06 | 1986-08-06 | Steam regeneration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6341702A true JPS6341702A (en) | 1988-02-23 |
| JPH086882B2 JPH086882B2 (en) | 1996-01-29 |
Family
ID=16133824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61183330A Expired - Lifetime JPH086882B2 (en) | 1986-08-06 | 1986-08-06 | Steam regeneration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH086882B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002162185A (en) * | 2000-11-21 | 2002-06-07 | Mitsubishi Kakoki Kaisha Ltd | Heat exchanging device |
| JP2009233617A (en) * | 2008-03-28 | 2009-10-15 | Ihi Corp | Volatile organic compound treatment system and volatile organic compound treatment method |
| JP2009240857A (en) * | 2008-03-28 | 2009-10-22 | Ihi Corp | System of treating volatile organic compound |
| CN103925585A (en) * | 2014-05-01 | 2014-07-16 | 苟仲武 | Steam dead steam regeneration device and working method |
| WO2024070945A1 (en) * | 2022-09-30 | 2024-04-04 | 東洋紡エムシー株式会社 | Organic solvent recovery system |
| WO2024070944A1 (en) * | 2022-09-30 | 2024-04-04 | 東洋紡エムシー株式会社 | Organic solvent recovery system |
-
1986
- 1986-08-06 JP JP61183330A patent/JPH086882B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002162185A (en) * | 2000-11-21 | 2002-06-07 | Mitsubishi Kakoki Kaisha Ltd | Heat exchanging device |
| JP2009233617A (en) * | 2008-03-28 | 2009-10-15 | Ihi Corp | Volatile organic compound treatment system and volatile organic compound treatment method |
| JP2009240857A (en) * | 2008-03-28 | 2009-10-22 | Ihi Corp | System of treating volatile organic compound |
| CN103925585A (en) * | 2014-05-01 | 2014-07-16 | 苟仲武 | Steam dead steam regeneration device and working method |
| CN103925585B (en) * | 2014-05-01 | 2015-10-21 | 苟仲武 | A steam exhaust steam regeneration device and working method |
| WO2024070945A1 (en) * | 2022-09-30 | 2024-04-04 | 東洋紡エムシー株式会社 | Organic solvent recovery system |
| WO2024070944A1 (en) * | 2022-09-30 | 2024-04-04 | 東洋紡エムシー株式会社 | Organic solvent recovery system |
| JPWO2024070945A1 (en) * | 2022-09-30 | 2024-04-04 | ||
| JP7537648B1 (en) * | 2022-09-30 | 2024-08-21 | 東洋紡エムシー株式会社 | Organic Solvent Recovery System |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH086882B2 (en) | 1996-01-29 |
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