JPH0224560B2

JPH0224560B2 -

Info

Publication number: JPH0224560B2
Application number: JP5079982A
Authority: JP
Inventors: Kyomi Yamada; Shoji Hagiwara
Original assignee: Mitsubishi Heavy Industries Ltd
Current assignee: Mitsubishi Heavy Industries Ltd
Priority date: 1982-03-29
Filing date: 1982-03-29
Publication date: 1990-05-29
Also published as: JPS58165895A

Description

[Detailed description of the invention]

本発明は、有機溶剤（パークロルエチレン、
１，１，１，−トリクロルエチレン、１，１，２
−トリクロロ−１，２，２−トリフルオロエタ
ン、トリクロロモノフルオロメタンなど）を使用
したドライクリーニング装置に関し、とくに排出
溶剤ガスを回収するいわゆる溶剤回収装置と、前
記溶剤を冷却し、洗浄に供する溶剤冷却装置に係
するものである。まず有機溶剤としてパークロル
エチレンを用いた従来のドライクリーニング装置
について説明する。このドライクリーニング装置
は、第１図に示すように処理槽１、ボタントラツ
プ２、溶剤タンク３、フイルタ４、凝縮回収を行
なうクーラ５、乾燥熱源のヒータ６、フアン７、
及びクーラ５、ヒータ６、フアン７を内蔵するダ
クト８、蒸留器９、コンデンサ１０、比重差で溶
剤と水を分離する水分離器１１、及びポンプ１２
等で構成されている。洗浄工程は予洗及び水洗工程から構成され、溶
剤タンク３から溶剤１３を処理槽１に送り込み、
衣料１４を洗浄する。その排液は、蒸留器９に送
り込んで蒸留するか、溶剤タンク３にもどす。脱液工程は、処理槽内の洗たくドラム１５を高
速回転させ遠心脱液する。乾燥工程では、ダンパ１６を実線部に位置さ
せ、ヒータ６とフアン７で熱風を衣料１４に吹き
付け溶剤を蒸発させクーラ５で蒸発したガスを擬
縮液化し回収する。この場合溶剤回収量は、クー
ラ５の温度で変化し、クーラ５の冷却温度で飽和
してある時間で回収出来なくなる。循環工程及び脱臭工程は、乾燥しきれない衣料
１４に付着した溶剤を外気取入れ口１７から流入
した外気で蒸発させる。この時ダンパ１６は破線
の状態となり、溶剤ガス排気口１８から機外に排
出される。しかしてこの循環工程で排気される溶剤ガス
は、パークロルエチレンの場合35000ppm〜
40000ppmに達し、このまま排出すると公害規制
（100ppm）で問題があるばかりか、溶剤ロスとな
り不経済である。このロス分を回収するために溶
剤回収装置２０を設けている。溶剤回収装置２０は、蓄冷部２１と吸着回収部
２２とから構成されている。蓄冷部２１は、排気
された溶剤ガスを凝縮回収するもので、内部にセ
ラミツクボール等の蓄冷部材２３を充填するとと
もに冷凍機２４に連絡した冷却コイル２５を配設
している。また溶剤ガス排気口１８から蓄冷部２
１への管路２６に入口ダンパ２７を、蓄冷部２１
から外気取入れ口１７への管路２８に出口ダンパ
２８を設け、又同管路２８から分岐して外気取入
れダンパ３０を設けている。更に蓄冷部２１の底
部に水分離器３１が接続しており、この水分離器
３１への接続管路にバルブ４７を設けている。吸着回収部２２は、内部に活性炭３２を充填
し、蓄冷部２１から吸着回路部２２への管路３３
に活性炭入口ダンパ３４を、吸着回収部２２から
外部への管路３５に出口ダンパ３６をそれぞれ設
けている。また吸着回収部２２は、乾燥フアン３
７と連絡し、その連絡管路３８に乾燥ダンパ３９
を設けている。蓄冷部２１は、循環工程に入る前までに、冷凍
機２４等により−20℃程度に冷却されている。循環工程ではダンパ１６，２７，２９が開、ダ
ンパ３４，３０が閉となり、前記した高濃度（推
定濃度250ｇ／m³）の溶剤ガスが洗たくドラム１
５から蓄冷部２１に送られてくる。蓄冷部２１で
は、溶剤ガスを冷却、凝縮液化し水分離器３１に
送る。蓄冷部２１による回収が終了し脱臭工程に入る
と、ダンパ１６，３０，３４，３６が開、ダンパ
２７，２９が閉となり新鮮な空気が外気取入れダ
ンパ３０から洗たくドラム１５に流入し、管路２
６、吸着回収部２２、出口ダンパ３６を経て屋外
へ放出される。この際、前記した蓄冷式凝縮回収により低濃度
（推定濃度25ｇ／m³）になつた溶剤ガスを活性炭
３２による吸着回収で更に溶剤回収する。またドライクリーニング装置には、図示する溶
剤冷却装置４０を設ける場合がある。この溶剤冷
却装置４０は、色泣き、樹脂製ボタンの溶解など
の衣料事故防止又は夏場等の溶剤温度が上昇しや
すい条件等の場合に溶剤温度を下げる目的で使用
されるもので、内部に清浄な溶剤４１を入れ、冷
凍機４２と連絡した冷却コイル４３を配設してい
る。この溶剤冷却装置４０内の溶剤４１は、クリ
ーンタンク４４から管路４５を通つて供給され、
所定の温度（パークロルエチレンの場合−15℃〜
−20℃）に冷却しておき、洗浄工程の際ポンプ４
６で冷却した溶剤４１のみを処理槽１に供給し、
あるいはこれを溶剤タンク３から処理槽１に供給
する溶剤１３と混合して供給し、処理槽１内の溶
剤温度の上昇を防止している。上記溶剤回収装置２０は、公害規制、省エネ等
によりほぼ標準装備化されているが、溶剤冷却装
置４０は溶剤回収装置２０ほどの市場ニーズは無
く、特別仕様となり、別々の装置として販売され
ている。このためこの装置を取付けると装置が大
型となり、コストも高くなる問題がある。また溶剤回収装置２０に於いて、冷却コイル２
５と蓄冷部材２３との間の伝熱媒体は空気のた
め、空気層の自然対流によつていること及び伝熱
性が悪く（熱貫流係数k₀＝20kcal／m²ｈ℃）伝熱
性能を向上させるために、伝熱面積を大きくする
と、蓄冷部２１が大型化することになる問題が発
生する。本発明は、上記事情に鑑みてなされたもので、
その目的とするところは、溶剤回収装置と溶剤冷
却装置の冷凍装置とを兼用化するとともに、パー
クロルエチレン等の溶剤を伝熱媒体とすることに
より、設置スペースの低減、溶剤回収効率の向上
及び衣料事故防止などを図ることができるドライ
クリーニング装置を得んとするものである。すなわち本発明は、溶剤タンクと、上記溶剤タ
ンクからの溶剤が供給される洗たくドラムと、上
記洗濯ドラムに取付けられ、溶剤ガス排気口と外
気取入れ口とをそれぞれ設けたダクトと、上記溶
剤ガス排気口からの溶剤ガスを蓄冷装置に供給す
る溶剤ガス回収管路と、内部に畜冷部材を充填し
かつ冷凍機に連絡した冷却コイルを配置して、溶
剤ガス回収管路から供給された溶剤ガスを冷却す
る蓄冷装置と、上記蓄冷装置での溶剤ガスの冷却
で得られる洗浄溶液を貯留する洗浄溶剤貯留タン
クと、上記ダクトの外気取入れ口に、上記蓄冷装
置からの溶剤ガス回収後の空気を供給するエア供
給管路と、上記洗浄溶剤貯留タンクからの洗浄溶
剤を上記蓄冷装置内に供給する溶剤供給管路と、
上記洗浄溶剤貯留タンクからの洗浄溶剤を上記洗
たくドラムに供給する溶剤供給管路と、を具備し
てなるドライクリーニング装置である。以下本発明を図示する実施例を参照して説明す
る。第２図はドライクリーニング装置の概略説明図
である。このドライクリーニング装置は、洗たく
ドラム１５と、蓄冷装置５０と、洗浄溶剤貯留タ
ンク５１と、溶剤ガス回収管路５２と、エア供給
管路５３と、溶剤供給管路５４，５５とを具備し
ている。上記洗たくドラム１５及び処理槽１、ボ
タントラツプ２、溶剤タンク３、フイルタ４、ク
ーラ５、ヒータ６、フアン７、ダクト８、蒸留器
９、コンデンサ１０、水分離器１１、ポンプ１２
等の構成は第１図に示すものと同様であり、その
説明を省略する。また上記蓄冷装置５０は、第１
図に示す蓄冷部と同様にセラミツクボール等の蓄
冷部材２３、冷凍機２４、冷却コイル２５、水分
離器３１を備え、吸着回収部２２に活性炭３２、
乾燥フアン３７等を備えている。上記溶剤ガス回収管路５２は、洗たくドラム１
５の溶剤ガス排気口１６と蓄冷装置５０の上部と
の間を連絡するもので、入口ダンパ２７を取付け
ている。上記エア供給管路５３は、蓄冷装置５０
の下側部と洗たくドラム１５の外気取入口１７と
の間を連絡するもので、出口ダンパ２９を取付
け、このエア供給管路５３から分岐して外気取入
れダンパ３０を取付けている。更に上記貯留タン
ク５１は、蓄冷装置５０で冷却した洗浄溶剤を貯
留するもので、蓄冷装置５０から貯留タンク５１
への管路５６に開閉弁５７を設けている。また上
記溶剤供給管路５４は貯留タンク５１から蓄冷装
置５０の上側部に連絡され、この管路５４に開閉
弁５８ポンプ５９及び開閉弁６０を順に取付けて
いる。上記溶剤供給管路５５は、溶剤供給管路５
４のポンプ５９と開閉弁６０との間から洗たくド
ラム１５に連絡され、この管路５５に開閉弁６１
を取付けている。更にクリーンタンク４４から溶
剤供給管路５４の開閉弁５８とポンプ５９との間
に洗浄溶剤補充管路６２を連絡し、この管路６２
に開閉弁６３を取付けている。次にこのように構成されたドライクリーニング
装置の作用を説明する。洗浄工程の開始に当つて溶剤１３の温度を溶剤
温度センサ（図示せず）で検知する。溶剤１３が
所定の温度より高い場合には、ポンプ５９を作動
し、開閉弁５８，６１を開、開閉弁６０，６３を
閉とし、予洗及び本洗時に貯留タンク５１に貯留
してある冷却溶剤の所定量を管路５５を経て処理
槽１に導き、溶剤タンク３から処理槽１に供給さ
れる溶剤１３と混合して、溶剤温度を適温に維持
する。本洗工程に於ける貯留タンク５１からの低温溶
剤の供給が終了すると、貯留タンク５１内の冷却
溶剤は管路５４を経て蓄冷装置５０に導かれる。
この際、蓄冷装置５０が所定液量に達しない場合
にはクリーンタンク４４から管路６２，５４を経
て不足分を補充する。蓄冷装置５０の溶剤は乾燥工程が終了する直前
まで冷凍機２４により冷却コイル２５を介し、冷
却される一方この溶剤を伝熱媒体として蓄冷部材
２３を冷却し、−20℃程度に維持される。乾燥工程が終了する直前に、開閉弁５７を開
き、蓄冷装置５０内の冷却溶剤を貯留タンク５１
に自重により導き、次の循環工程に洗たくドラム
１５からの溶剤ガスが蓄冷装置５０を通過できる
状態にする。循環工程に入ると、ダンパ１６は鎖線の位置に
切り変わり、管路５２、ダンパ２７、蓄冷装置５
０、ダンパ２９、管路５３、外気取入れ口１７、
処理槽１、溶剤ガス排気口１８の循環回路を高濃
度の溶剤ガスが循環して、溶剤ガスを蓄冷装置５
０により冷却、凝縮、液化し、水分離器３１に送
る。この場合ダンパ３４，３０、開閉弁５７，６
０閉、バルブ４７開である。この工程に入る前までに蓄冷部材２３は、前記
する様に−20℃程度に冷却されている。脱臭工程に入ると、新鮮な空気が外気取入れダ
ンパ３０から洗たくドラム１５に流入し、管路５
２、吸着回収部２２、出口ダンパ３６を経て屋外
へ放出される。この場合ダンパ２７，２９は閉、
ダンパ３４は開である。上述したドライクリーニング装置の工程を要約
すると第１表の如くになる。 The present invention uses organic solvents (perchlorethylene,
1,1,1,-trichloroethylene, 1,1,2
- trichloro-1,2,2-trifluoroethane, trichloromonofluoromethane, etc.), particularly a so-called solvent recovery device that recovers exhaust solvent gas, and a solvent that cools the solvent and provides it for cleaning. This relates to a cooling device. First, a conventional dry cleaning apparatus using perchlorethylene as an organic solvent will be described. As shown in FIG. 1, this dry cleaning apparatus includes a processing tank 1, a button trap 2, a solvent tank 3, a filter 4, a cooler 5 for condensation and recovery, a heater 6 as a drying heat source, a fan 7,
and a cooler 5, a heater 6, a duct 8 containing a fan 7, a distiller 9, a condenser 10, a water separator 11 that separates solvent and water based on the difference in specific gravity, and a pump 12.
It is composed of etc. The cleaning process consists of a pre-washing and water washing process, in which the solvent 13 is sent from the solvent tank 3 to the treatment tank 1,
Wash the clothing 14. The waste liquid is sent to the distiller 9 for distillation, or is returned to the solvent tank 3. In the dewatering step, the washing drum 15 in the processing tank is rotated at high speed to perform centrifugal dewatering. In the drying process, the damper 16 is located at the solid line part, the heater 6 and the fan 7 blow hot air onto the clothing 14 to evaporate the solvent, and the cooler 5 converts the evaporated gas into pseudo-liquefaction and collects it. In this case, the amount of solvent recovered varies depending on the temperature of the cooler 5, and becomes saturated at the cooling temperature of the cooler 5 and cannot be recovered after a certain period of time. In the circulation step and the deodorizing step, the solvent adhering to the clothes 14 that have not been completely dried is evaporated by the outside air flowing in from the outside air intake port 17. At this time, the damper 16 is in the state shown by the broken line and is discharged from the solvent gas exhaust port 18 to the outside of the machine. However, the solvent gas exhausted during the circulation process is 35,000 ppm for perchlorethylene.
It reaches 40,000 ppm, and if it is discharged as it is, it not only poses a problem with pollution regulations (100 ppm), but also causes solvent loss and is uneconomical. A solvent recovery device 20 is provided to recover this loss. The solvent recovery device 20 includes a cold storage section 21 and an adsorption recovery section 22. The cool storage unit 21 condenses and recovers the exhausted solvent gas, and is filled with a cool storage member 23 such as a ceramic ball, and is provided with a cooling coil 25 connected to a refrigerator 24. In addition, from the solvent gas exhaust port 18 to the cool storage unit 2
An inlet damper 27 is installed in the pipe line 26 to the cold storage section 21.
An outlet damper 28 is provided in a conduit 28 leading from the outlet to the outside air intake port 17, and an outside air intake damper 30 is provided branching off from the conduit 28. Furthermore, a water separator 31 is connected to the bottom of the cold storage section 21, and a valve 47 is provided in the connection pipe line to the water separator 31. The adsorption recovery unit 22 is filled with activated carbon 32 and has a pipe line 33 from the cold storage unit 21 to the adsorption circuit unit 22.
An activated carbon inlet damper 34 is provided in the activated carbon inlet damper 34, and an outlet damper 36 is provided in the conduit 35 from the adsorption/recovery section 22 to the outside. In addition, the adsorption and recovery section 22 includes a drying fan 3
7, and a drying damper 39 is connected to the connecting pipe 38.
has been established. The cold storage unit 21 is cooled to about -20° C. by the refrigerator 24 or the like before entering the circulation process. In the circulation process, the dampers 16, 27, and 29 are opened and the dampers 34 and 30 are closed, and the above-mentioned high concentration (estimated concentration: 250 g/m ³ ) solvent gas is washed into the drum 1.
5 and is sent to the cold storage unit 21. In the cold storage section 21 , the solvent gas is cooled, condensed and liquefied, and sent to the water separator 31 . When the collection by the cool storage unit 21 is completed and the deodorization process begins, the dampers 16, 30, 34, and 36 are opened, and the dampers 27 and 29 are closed, and fresh air flows from the outside air intake damper 30 into the washing drum 15, and the pipe line 2
6, the adsorption/recovery section 22 and the outlet damper 36 before being discharged outdoors. At this time, the solvent gas, which has become low in concentration (estimated concentration 25 g/m ³ ) by the regenerator condensation recovery described above, is further recovered as a solvent by adsorption recovery using the activated carbon 32 . Further, the dry cleaning apparatus may be provided with a solvent cooling device 40 as shown in the drawing. This solvent cooling device 40 is used to prevent clothing accidents such as discoloration and melting of resin buttons, or to lower the solvent temperature in conditions such as summer when the solvent temperature tends to rise. A cooling coil 43 containing a solvent 41 and communicating with a refrigerator 42 is provided. The solvent 41 in this solvent cooling device 40 is supplied from a clean tank 44 through a pipe 45,
Specified temperature (-15℃ for perchlorethylene)
-20℃) and pump 4 during the cleaning process.
Supplying only the solvent 41 cooled in step 6 to the treatment tank 1,
Alternatively, this is mixed with the solvent 13 supplied from the solvent tank 3 to the processing tank 1 and supplied to prevent the temperature of the solvent in the processing tank 1 from rising. The above-mentioned solvent recovery device 20 is almost standard equipment due to pollution regulations, energy saving, etc. However, the solvent cooling device 40 does not have as much market need as the solvent recovery device 20, so it is a special specification and is sold as a separate device. . For this reason, there is a problem in that when this device is installed, the device becomes large and the cost increases. In addition, in the solvent recovery device 20, the cooling coil 2
Since the heat transfer medium between 5 and the cold storage member 23 is air, it relies on natural convection in the air layer and has poor heat transfer performance (heat transmission coefficient k ₀ = 20 kcal/m ² h°C). If the heat transfer area is increased in order to improve the performance, a problem arises in that the cold storage section 21 becomes larger. The present invention was made in view of the above circumstances, and
The purpose of this is to combine the solvent recovery equipment with the refrigeration equipment of the solvent cooling equipment, as well as use a solvent such as perchlorethylene as a heat transfer medium, thereby reducing installation space, improving solvent recovery efficiency, and The present invention aims to provide a dry cleaning device that can prevent clothing accidents. That is, the present invention includes a solvent tank, a washing drum to which the solvent from the solvent tank is supplied, a duct attached to the washing drum and provided with a solvent gas exhaust port and an outside air intake port, and the solvent gas exhaust port. A solvent gas recovery pipe that supplies the solvent gas from the mouth to the cold storage device, and a cooling coil that is filled with a cold storage member and connected to the refrigerator are arranged to collect the solvent gas supplied from the solvent gas recovery pipe. a cleaning solvent storage tank that stores a cleaning solution obtained by cooling the solvent gas in the cold storage device; and a cleaning solvent storage tank that stores the cleaning solution obtained by cooling the solvent gas in the cold storage device; an air supply pipe line for supplying air; a solvent supply pipe line for supplying the cleaning solvent from the cleaning solvent storage tank into the cold storage device;
The dry cleaning apparatus includes a solvent supply pipe line for supplying the cleaning solvent from the cleaning solvent storage tank to the cleaning drum. The present invention will be described below with reference to illustrative embodiments. FIG. 2 is a schematic explanatory diagram of the dry cleaning apparatus. This dry cleaning apparatus includes a washing drum 15, a cold storage device 50, a cleaning solvent storage tank 51, a solvent gas recovery pipe 52, an air supply pipe 53, and solvent supply pipes 54 and 55. There is. The washing drum 15 and processing tank 1, button trap 2, solvent tank 3, filter 4, cooler 5, heater 6, fan 7, duct 8, distiller 9, condenser 10, water separator 11, pump 12
The configurations are similar to those shown in FIG. 1, and their explanation will be omitted. Further, the cold storage device 50 includes a first
Like the cool storage unit shown in the figure, it is equipped with a cool storage member 23 such as a ceramic ball, a refrigerator 24, a cooling coil 25, and a water separator 31.
It is equipped with a drying fan 37, etc. The solvent gas recovery pipe 52 is connected to the washing drum 1.
It communicates between the solvent gas exhaust port 16 of No. 5 and the upper part of the cold storage device 50, and an inlet damper 27 is attached thereto. The air supply pipe 53 is connected to the cold storage device 50
It communicates between the lower side of the drum 15 and the outside air intake port 17 of the washing drum 15, an outlet damper 29 is attached thereto, and an outside air intake damper 30 is attached branching off from this air supply pipe 53. Furthermore, the storage tank 51 is for storing the cleaning solvent cooled by the cold storage device 50, and the cleaning solvent is transferred from the cold storage device 50 to the storage tank 51.
An on-off valve 57 is provided in the conduit 56 to. Further, the solvent supply pipe 54 is connected from the storage tank 51 to the upper side of the cold storage device 50, and an on-off valve 58, a pump 59, and an on-off valve 60 are attached to this pipe line 54 in this order. The solvent supply pipe 55 is the solvent supply pipe 5
The washing drum 15 is connected between the pump 59 and the on-off valve 60 of No. 4, and the on-off valve 61 is connected to this pipe 55.
is installed. Further, a cleaning solvent replenishment line 62 is connected from the clean tank 44 to the on-off valve 58 of the solvent supply line 54 and the pump 59.
An on-off valve 63 is attached to the. Next, the operation of the dry cleaning apparatus configured as described above will be explained. At the start of the cleaning process, the temperature of the solvent 13 is detected by a solvent temperature sensor (not shown). When the temperature of the solvent 13 is higher than a predetermined temperature, the pump 59 is operated, the on-off valves 58 and 61 are opened, and the on-off valves 60 and 63 are closed, and the cooling solvent stored in the storage tank 51 is removed during pre-washing and main washing. A predetermined amount of the solvent is led to the processing tank 1 through the pipe line 55 and mixed with the solvent 13 supplied to the processing tank 1 from the solvent tank 3 to maintain the solvent temperature at an appropriate temperature. When the supply of the low-temperature solvent from the storage tank 51 in the main washing process is completed, the cooling solvent in the storage tank 51 is led to the cold storage device 50 via the pipe line 54.
At this time, if the cool storage device 50 does not reach a predetermined amount of liquid, the insufficient amount is replenished from the clean tank 44 via the pipes 62 and 54. The solvent in the cold storage device 50 is cooled by the refrigerator 24 via the cooling coil 25 until just before the end of the drying process, while cooling the cold storage member 23 using the solvent as a heat transfer medium and maintained at about -20°C. Immediately before the drying process ends, the on-off valve 57 is opened and the cooling solvent in the cold storage device 50 is transferred to the storage tank 51.
The solvent gas from the drum 15 to be washed in the next circulation process can pass through the cold storage device 50. When entering the circulation process, the damper 16 switches to the position shown by the chain line, and the pipe line 52, the damper 27, and the cold storage device 5
0, damper 29, pipe line 53, outside air intake 17,
Highly concentrated solvent gas circulates through the circulation circuit of the processing tank 1 and the solvent gas exhaust port 18, and the solvent gas is transferred to the cold storage device 5.
0, it is cooled, condensed, and liquefied, and sent to the water separator 31. In this case, dampers 34, 30, on-off valves 57, 6
0 is closed, and valve 47 is open. Before starting this step, the cold storage member 23 has been cooled to about -20° C. as described above. When the deodorizing process begins, fresh air flows into the washing drum 15 from the outside air intake damper 30, and the pipe line 5
2, the adsorption/recovery section 22 and the outlet damper 36 before being discharged outdoors. In this case, dampers 27 and 29 are closed,
Damper 34 is open. Table 1 summarizes the steps of the dry cleaning apparatus described above.

【表】しかしてこのドライクリーニング装置によれ
ば、溶剤回収と溶剤冷却とを１台の冷凍機で兼用
しているので、設置スペースの低減、装置コスト
及び付帯工事コスト等の低減を図ることができ
る。また伝熱媒体として、空気に代えてパークロ
ルエチレン等の溶剤を採用しているので、伝熱性
が極めて向上する。すなわち熱伝導率は、空気
0.022kcal／ｍｈ℃に対してパークロルエチレン
は0.095kcal／ｍｈ℃、熱貫流係数は、空気k₀＝
20kcal／m²ｈ℃に対し、パークロルエチレンk_s＝
150〜200kcal／cm²ｈ℃であり、効率的な溶剤回収
が可能となる。[Table] However, according to this dry cleaning device, a single refrigerator is used for both solvent recovery and solvent cooling, so it is possible to reduce the installation space, equipment cost, and incidental construction cost. can. Furthermore, since a solvent such as perchloroethylene is used instead of air as the heat transfer medium, heat transfer properties are greatly improved. In other words, the thermal conductivity is
0.022kcal/mh℃, perchlorethylene is 0.095kcal/mh℃, and the heat transmission coefficient is air k ₀ =
For 20kcal/m ² h℃, perchlorethylene k _s =
150 to 200 kcal/cm ² h°C, which enables efficient solvent recovery.

[Brief explanation of drawings]

第１図は従来のドライクリーニング装置の概略
説明図、第２図は本発明の一実施例を示すドライ
クリーニング装置の概略説明図である。１……処理槽、２……ボタントラツプ、３……
溶剤タンク、４……フイルタ、５……クーラ、６
……ヒータ、７……フアン、８……ダクト、９…
…蒸留器、１０……コンデンサ、１１……水分離
器、１２……ポンプ、１３……溶剤、１４……衣
料、１５……洗たくドラム、１６……ダンパ、１
７……外気取入れ口、１８……溶剤ガス排気口、
２０……溶剤回収装置、２１……蓄冷部、２２…
…吸着回収部、２３……蓄冷部材、２４……冷凍
機、２５……冷却コイル、２６……管路、２７…
…入口ダンパ、２８……管路、２９……出口ダン
パ、３０……外気取入れダンパ、３１……水分離
器、３２……活性炭、３３……管路、３４……活
性炭入口ダンパ、３５……管路、３６……出口ダ
ンパ、３７……乾燥フアン、３８……管路、３９
……乾燥ダンパ、４０……溶剤冷却装置、４１…
…溶剤、４２……冷凍機、４３……冷却コイル、
４４……クリーンタンク、４５……管路、４６…
…ポンプ、４７……バルブ、５０……蓄冷装置、
５１……貯留タンク、５２……溶剤ガス回収管
路、５３……エア供給管路、５４，５５……溶剤
供給管路、５６……管路、５７，５８，６０，６
１……開閉弁、５９……ポンプ、６２……洗浄溶
剤補充管路。 FIG. 1 is a schematic explanatory diagram of a conventional dry cleaning apparatus, and FIG. 2 is a schematic explanatory diagram of a dry cleaning apparatus showing an embodiment of the present invention. 1... Processing tank, 2... Button trap, 3...
Solvent tank, 4... Filter, 5... Cooler, 6
...Heater, 7...Fan, 8...Duct, 9...
... distiller, 10 ... condenser, 11 ... water separator, 12 ... pump, 13 ... solvent, 14 ... clothing, 15 ... washing drum, 16 ... damper, 1
7...Outside air intake, 18...Solvent gas exhaust port,
20...Solvent recovery device, 21...Cold storage unit, 22...
...Adsorption and recovery section, 23...Cold storage member, 24...Refrigerating machine, 25...Cooling coil, 26...Pipeline, 27...
...Inlet damper, 28...Pipe line, 29...Outlet damper, 30...Outside air intake damper, 31...Water separator, 32...Activated carbon, 33...Pipe line, 34...Activated carbon inlet damper, 35... ...Pipe line, 36...Outlet damper, 37...Drying fan, 38...Pipe line, 39
...Drying damper, 40...Solvent cooling device, 41...
...Solvent, 42... Refrigerator, 43... Cooling coil,
44...Clean tank, 45...Pipe line, 46...
...Pump, 47...Valve, 50...Cold storage device,
51... Storage tank, 52... Solvent gas recovery pipe, 53... Air supply pipe, 54, 55... Solvent supply pipe, 56... Pipe, 57, 58, 60, 6
1...Opening/closing valve, 59...Pump, 62...Cleaning solvent replenishment pipe.

Claims

[Scope of Claims] 1. A solvent tank, a washing drum to which the solvent from the solvent tank is supplied, a duct attached to the washing drum and provided with a solvent gas exhaust port and an outside air intake port, and the solvent. A solvent gas recovery pipe that supplies the solvent gas from the gas exhaust port to the cold storage device, and a cooling coil that is filled with a cold storage material and connected to the refrigerator are arranged so that the solvent gas is supplied from the solvent gas recovery pipe. A cold storage device that cools the solvent gas; a cleaning solvent storage tank that stores a cleaning solution obtained by cooling the solvent gas in the cold storage device; and a cleaning solvent storage tank that stores a cleaning solution obtained by cooling the solvent gas in the cold storage device; an air supply pipe that supplies air; a solvent supply pipe that supplies the cleaning solvent from the cleaning solvent storage tank into the cold storage device; and a solvent that supplies the cleaning solvent from the cleaning solvent storage tank to the washing drum. A dry cleaning device comprising: a supply pipe;