JPH0615094A - Controlling method for rinsing process in dry cleaning apparatus using flammable solvent - Google Patents
Controlling method for rinsing process in dry cleaning apparatus using flammable solventInfo
- Publication number
- JPH0615094A JPH0615094A JP4174331A JP17433192A JPH0615094A JP H0615094 A JPH0615094 A JP H0615094A JP 4174331 A JP4174331 A JP 4174331A JP 17433192 A JP17433192 A JP 17433192A JP H0615094 A JPH0615094 A JP H0615094A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- solvent
- distillation system
- distillation
- tank
- 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
- 239000002904 solvent Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005108 dry cleaning Methods 0.000 title claims description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 77
- 238000004821 distillation Methods 0.000 claims abstract description 66
- 238000001035 drying Methods 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims description 25
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 abstract description 19
- 238000009825 accumulation Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 23
- 229910001873 dinitrogen Inorganic materials 0.000 description 19
- 238000010586 diagram Methods 0.000 description 6
- 238000005201 scrubbing Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ドライクリーニング機
の洗浄・乾燥系内に不活性ガスを投入して、可燃性溶剤
使用による爆発の危険をなくしたドライクリーニング装
置におけるすゝぎ洗い工程制御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a scrubbing process in a dry cleaning apparatus in which an inert gas is introduced into the cleaning / drying system of a dry cleaning machine to eliminate the risk of explosion caused by the use of a flammable solvent. Regarding
【０００２】[0002]
【従来の技術】ドライクリーニングにおいては、公害防
止のために石油系溶剤を使用することが検討されている
が、石油系溶剤は引火点が約４１℃と低く、洗浄・乾燥
工程、特に乾燥工程において衣服類が乾燥されていくに
つれて衣服類の温度が上昇すると共に溶剤ガスの濃度が
薄くなって引火しやすくなり、静電気による火花や、金
属が衣服類と一緒に内胴中に入った場合に内胴と金属と
が当ることによって発生する火花によって、溶剤ガスに
引火して爆発するおそれがある。2. Description of the Related Art In dry cleaning, it is considered to use petroleum-based solvents to prevent pollution. However, petroleum-based solvents have a low flash point of about 41 ° C. In the case of clothes becoming dry, the temperature of the clothes rises and the concentration of solvent gas decreases, making it easier to catch fire, and when sparks due to static electricity or metal get inside the inner body together with the clothes. Sparks generated by the collision of the inner body with the metal may cause the solvent gas to ignite and explode.
【０００３】前記のような爆発の危険を防止するため、
ドライクリーニング機の洗浄・乾燥系内を減圧し、窒素
ガスを投入して洗浄・乾燥系内をほゞ大気圧に戻し、こ
の状態で、洗浄および乾燥工程を行なうことが提案され
ている（特開平３−１２６４８９号参照）。また、石油
系溶剤は、加熱によって蒸発する留出温度が１５５℃か
ら１９４℃くらいまでの広い留出温度範囲の物質が含ま
れているので、蒸留器の加熱温度を１４５℃〜１５０℃
に設定すると共に蒸留系をバキュームポンプにより減圧
し、その減圧度を調整することにより初留出点から終留
出点に至るまでの蒸留を行なうことが知られている（特
開平４−１２２４０１号参照）。In order to prevent the above danger of explosion,
It has been proposed that the cleaning / drying system of the dry cleaning machine is depressurized, nitrogen gas is introduced to return the cleaning / drying system to almost atmospheric pressure, and the cleaning and drying process is performed in this state ( See Kaihei 3-126489). Further, the petroleum-based solvent contains a substance having a wide distillation temperature range of 155 ° C. to 194 ° C., which is vaporized by heating, so that the heating temperature of the distiller is 145 ° C. to 150 ° C.
It is known that the distillation from the initial distillation point to the final distillation point is performed by setting the pressure of the distillation system by a vacuum pump and adjusting the degree of pressure reduction (Japanese Patent Laid-Open No. 4-122401). reference).
【０００４】[0004]
【発明が解決しようとする課題】ところで、ドライクリ
ーニングは、一般に、洗浄槽中の溶剤の液位を一定に保
って被洗物を洗浄する溜め洗いと、溶剤をベースタンク
からフィルタおよび洗浄槽を経てベースタンクに循環さ
せながら洗浄する循環洗いと、清浄溶剤によるすゝぎ洗
いとを行ない、かつ、その溜め洗いにより汚れた溶剤を
蒸留器に移送し、その汚れた溶剤を蒸留して得た清浄な
溶剤を次回の被洗物の洗浄工程のすゝぎ洗い用として用
いるのであるが、本発明を適用するドライクリーニング
装置は、前記の如く、洗浄・乾燥系内はほゞ大気圧であ
るのに、蒸留系内は減圧されているので、蒸留系内の清
浄溶剤を洗浄系内の洗浄槽中に重力で落し込むことがで
きず、ポンプを用いて強制的に落し込む必要があった。By the way, dry cleaning is generally carried out by pool washing for washing an object to be washed while keeping the liquid level of the solvent in the washing tank constant, and removing the solvent from the base tank to the filter and the washing tank. The cleaning is carried out by circulating cleaning in which it is circulated through the base tank and rinsing with a clean solvent, transferring the dirty solvent to the distiller and distilling the dirty solvent. Although a different solvent is used for cleaning the next step of cleaning the object to be washed, the dry cleaning device to which the present invention is applied, even though the cleaning / drying system is at about atmospheric pressure as described above. Since the inside of the distillation system is depressurized, the clean solvent in the distillation system cannot be dropped into the cleaning tank in the cleaning system by gravity, and it is necessary to forcibly drop it using a pump.
【０００５】本発明は前記従来技術の如きポンプを用い
ることなく、蒸留系内の清浄溶剤を洗浄槽中に重力によ
り落し込むことができ、かつ、汚れた溶剤の蒸留を乾燥
工程終了時までに完全に行なうことができるドライクリ
ーニング装置におけるすゝぎ洗い工程制御方法を提供す
ることを目的とする。According to the present invention, the clean solvent in the distillation system can be dropped into the cleaning tank by gravity without using the pump as in the prior art, and the distillation of the dirty solvent can be completed by the end of the drying process. It is an object of the present invention to provide a method for controlling a soaking process in a dry cleaning device which can be completely performed.
【０００６】[0006]
【課題を解決するための手段】本発明は、前記の如き目
的を達成するため、洗浄・乾燥系内を減圧した後不活性
ガスを投入して洗浄および乾燥工程を行ない、洗浄工程
により汚れた溶剤を蒸留系に移送し、その蒸留系内を減
圧しながら溶剤を蒸留し、これにより得られた清浄溶剤
を蒸留系内の一部である新液タンクに貯留し、その新液
タンクに貯留した清浄溶剤を用いて次回の被洗物のすゝ
ぎ洗いを行なう可燃性溶剤使用のドライクリーニング装
置において、前記洗浄・乾燥系と蒸留系とをエアバラン
ス弁を有する管路により接続し、マイコン制御による前
記すゝぎ洗いに際し、先づエアバランス弁を開いて清浄
・乾燥系内と蒸留系内とを均圧化すると共に新液流出弁
を開いて新液タンク中の溶剤を洗浄槽中に落し込み、そ
の溶剤落し込み終了後エアバランス弁を閉じて蒸留系内
を減圧し、すゝぎ洗いおよびその後の乾燥工程と汚れた
溶剤の蒸留とを並列的に行なうことを特徴とする。In order to achieve the above-mentioned object, the present invention performs cleaning and drying steps by depressurizing the inside of the cleaning / drying system and then introducing an inert gas, so that the cleaning step is contaminated. The solvent is transferred to the distillation system, the solvent is distilled while depressurizing the distillation system, and the clean solvent obtained by this is stored in a new liquid tank, which is a part of the distillation system, and then stored in the new liquid tank. In a dry cleaning device that uses flammable solvents for the next scrubbing of the next wash using the cleaned solvent, the cleaning / drying system and the distillation system are connected by a pipe having an air balance valve, and controlled by a microcomputer. When performing the above-mentioned scrubbing, the air balance valve is first opened to equalize the pressure inside the cleaning / drying system and the distillation system, and the new solution outflow valve is opened to drop the solvent in the new solution tank into the cleaning tank. The solvent is dropped Close the rear air balance valve to reduce the pressure in the distillation system, and performing in parallel the distillation of the solvent and dirty rinse washing and the subsequent drying step.
【０００７】[0007]
【作用】本発明を適用するドライクリーニング装置は、
蒸留系内を減圧しながら溶剤を蒸留するので、１サイク
ルの洗浄、乾燥、蒸留工程を終了した時点では、蒸留系
内は例えば−５５０ｍｍＨｇであるのに対し、洗浄・乾
燥系内はほゞ大気圧になっている。また、新たな被洗物
を洗浄槽に入れた後、洗浄・乾燥系内を速やかに減圧す
るため、エアバランス弁を開くと、洗浄・乾燥系内と蒸
留系内とが−２５０ｍｍＨｇで均圧化されるが、その後
の洗浄工程の時には洗浄・乾燥系内に窒素ガスを投入し
てほゞ大気圧とするため、この場合でも蒸留系内は−２
５０ｍｍＨｇであるのに対し、洗浄・乾燥系内はほゞ大
気圧となっている。従って、この状態のままでは、蒸留
系内の新液タンクから洗浄系内の洗浄槽に至る管路の新
液流出弁を開いても溶剤は洗浄槽中に流下しない。The dry cleaning device to which the present invention is applied is
Since the solvent is distilled while reducing the pressure in the distillation system, when the washing, drying, and distillation steps of one cycle are completed, the inside of the distillation system is, for example, −550 mmHg, while the inside of the washing / drying system is almost large. It is at atmospheric pressure. In addition, after putting a new item to be washed in the washing tank, the air balance valve is opened to quickly reduce the pressure in the washing / drying system, and the washing / drying system and the distillation system are equalized at -250 mmHg. However, in the subsequent cleaning process, nitrogen gas is introduced into the cleaning / drying system to bring the pressure to about atmospheric pressure.
While the pressure is 50 mmHg, the pressure inside the cleaning / drying system is almost atmospheric pressure. Therefore, in this state, the solvent does not flow down into the cleaning tank even if the new liquid outflow valve in the pipe line from the new liquid tank in the distillation system to the cleaning tank in the cleaning system is opened.
【０００８】ここにおいて、本発明は、マイコン制御に
よるすゝぎ洗いに際し、先づエアバランス弁を開いて洗
浄・乾燥系内と蒸留系内とを均圧化すると共に新液流出
弁を開くので、蒸留系内が−２５０ｍｍＨｇであった場
合、双方の系内は例えば−１００ｍｍＨｇとなって新液
タンク中の清浄溶剤を洗浄槽中に落し込むことができ、
かつ、その落し込み終了後エアバランス弁を閉じて蒸留
系内を減圧し、すゝぎ洗いおよびその後の乾燥工程と汚
れた溶剤の蒸留とを並列的に行なうので、乾燥工程の終
了時点までに溶剤の蒸留を完了することができる。Here, in the present invention, in the case of siege cleaning by microcomputer control, the air balance valve is first opened to equalize the pressure in the cleaning / drying system and the distillation system and the new liquid outflow valve is opened. When the inside of the distillation system is -250 mmHg, the inside of both systems becomes, for example, -100 mmHg, and the clean solvent in the new liquid tank can be dropped into the cleaning tank.
Also, after the dropping, the air balance valve is closed to reduce the pressure in the distillation system, and the steps of rinsing and subsequent drying and the distillation of the dirty solvent are carried out in parallel. The distillation of can be completed.
【０００９】[0009]
【実施例】以下、添付図面に基づいて本発明の一実施例
を説明する。図１は本発明の制御方法を示すフローチャ
ート、図２は本発明を適用したドライクリーニング装置
の概要を示すブロック図、図３は図２の洗浄・乾燥系の
具体例を示す系統図、図４は図２に示す蒸留系の具体例
を示す系統図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 is a flow chart showing a control method of the present invention, FIG. 2 is a block diagram showing an outline of a dry cleaning apparatus to which the present invention is applied, FIG. 3 is a system diagram showing a specific example of the cleaning / drying system of FIG. 2, and FIG. FIG. 3 is a system diagram showing a specific example of the distillation system shown in FIG.
【００１０】図２において、１はドライクリーニング機
の洗浄・乾燥系、２は同じく蒸留系であって、両者は図
に示す如く多数の管路により接続されている。なお、図
２は、図示の都合上洗浄・乾燥系１と蒸留系２とが分離
されているが、実際には一体的に組み込まれて１つのド
ライクリーニング装置が構成されている。In FIG. 2, reference numeral 1 is a cleaning / drying system of a dry cleaning machine, and 2 is a distillation system, both of which are connected by a number of pipe lines as shown in the figure. Although the cleaning / drying system 1 and the distillation system 2 are separated from each other for convenience of illustration in FIG. 2, they are actually integrated into one dry cleaning device.
【００１１】本発明を適用するドライクリーニング装置
は、洗浄・乾燥系１を窒素ガス投入弁３を有する管路を
介して窒素ガスタンク４に接続し、かつ、その窒素ガス
タンク４は管路を介して空気中から窒素をとり込む窒素
ガス発生装置５と接続されており、その窒素ガス発生装
置５により空気中からとり込んだ窒素を窒素ガスタンク
４中に貯留圧５ｋｇ／ｃｍ2で貯留し、窒素ガスタンク
４中の窒素ガスを洗浄・乾燥系に投入して貯留圧が下が
ると窒素ガス発生装置５を駆動して窒素ガスタンク４の
貯留圧を５ｋｇ／ｃｍ2に保つように構成されている。
そして、洗浄・乾燥系１内を減圧し、その減圧度が設定
圧例えば−５５０ｍｍＨｇになったことを窒素ガス投入
制御用圧力検出手段６が検出すると、マイコン制御部７
を介し窒素ガス投入弁３を開いて洗浄・乾燥系１内に窒
素ガスを投入し、これにより洗浄・乾燥系１内が大気圧
（０ｍｍＨｇ）になったことを圧力検出手段６が検出す
ると窒素ガス投入弁３を閉じて洗浄工程に入るように構
成されている。In the dry cleaning apparatus to which the present invention is applied, the cleaning / drying system 1 is connected to a nitrogen gas tank 4 via a pipe having a nitrogen gas charging valve 3, and the nitrogen gas tank 4 is connected via the pipe. It is connected to a nitrogen gas generator 5 that takes in nitrogen from the air, and the nitrogen taken in from the air by the nitrogen gas generator 5 is stored in a nitrogen gas tank 4 at a storage pressure of 5 kg / cm 2 , When the nitrogen gas in 4 is put into the cleaning / drying system to reduce the storage pressure, the nitrogen gas generator 5 is driven to keep the storage pressure in the nitrogen gas tank 4 at 5 kg / cm 2 .
Then, the pressure in the cleaning / drying system 1 is reduced, and when the nitrogen gas charging control pressure detecting means 6 detects that the degree of the reduced pressure has reached a set pressure, for example, -550 mmHg, the microcomputer controller 7
When the pressure detecting means 6 detects that the nitrogen gas charging valve 3 is opened through the nitrogen gas and nitrogen gas is charged into the cleaning / drying system 1 so that the pressure in the cleaning / drying system 1 becomes atmospheric pressure (0 mmHg). The gas injection valve 3 is closed to start the cleaning process.
【００１２】また、洗浄・乾燥系１に接続した洗浄・乾
燥系用の電磁開閉バキューム弁８を有する管路と蒸留系
２に接続した蒸留系用の電磁開閉バキューム弁９，９′
を有する管路とを接続し、かつ、その接続点を１台のバ
キュームポンプ１０に接続し、常態においては該バキュ
ームポンプ１０を連続的に運転し、蒸留系用の電磁開閉
バキューム弁９，９′を閉じると共に洗浄系用の電磁開
閉バキューム弁８を開くと洗浄・乾燥系１内を減圧し、
逆に、洗浄・乾燥系用の電磁開閉バキューム弁８を閉じ
ると共に蒸留系用の電磁開閉バキューム弁９，９′を開
くと蒸留系２内を減圧し得るように構成されている。な
お、この実施例において、蒸留系用の電磁開閉バキュー
ム弁が２個併設されているのは、その一方が先に示した
特開平４−１２２４０１号公報に開示されている大流量
排気管路用、他方が小流量排気管路用のものである。Further, a pipeline having an electromagnetic opening / closing vacuum valve 8 for the cleaning / drying system connected to the cleaning / drying system 1 and electromagnetic opening / closing vacuum valves 9, 9'for the distillation system connected to the distillation system 2
Is connected to a single vacuum pump 10 and the vacuum pump 10 is continuously operated in the normal state, and the electromagnetic open / close vacuum valves 9 and 9 for the distillation system are connected. 'Is closed and the electromagnetic opening / closing vacuum valve 8 for the cleaning system is opened to reduce the pressure in the cleaning / drying system 1,
On the contrary, the inside of the distillation system 2 can be decompressed by closing the electromagnetic opening / closing vacuum valve 8 for the cleaning / drying system and opening the electromagnetic opening / closing vacuum valves 9, 9'for the distillation system. In this embodiment, the two electromagnetic opening / closing vacuum valves for the distillation system are provided side by side for the large-flow exhaust pipe line, one of which is disclosed in Japanese Patent Laid-Open No. 4-122401. The other is for a small flow rate exhaust pipe line.
【００１３】また、この実施例において、１１は洗浄・
乾燥系内の減圧度を制御する圧力検出手段であって、前
記の如く、蒸留系のバキューム弁９，９′を閉じると共
に洗浄・乾燥系のバキューム弁８を開いて洗浄・乾燥系
内を減圧し、その減圧度が設定値例えば−５５０ｍｍＨ
ｇに達したことを圧力検出手段１１が検出すると、マイ
コン制御部７を介してバキューム弁８を閉じるように構
成されている。In this embodiment, 11 is a cleaning /
A pressure detecting means for controlling the degree of decompression in the drying system. As described above, the vacuum valves 9 and 9'of the distillation system are closed and the vacuum valve 8 of the cleaning / drying system is opened to reduce the pressure in the cleaning / drying system. However, the degree of pressure reduction is a set value, for example, −550 mmH.
When the pressure detector 11 detects that the pressure g has been reached, the vacuum valve 8 is closed via the microcomputer controller 7.
【００１４】本発明においては、洗浄・乾燥系１と蒸留
系２とをエアバランス弁１２を有する管路１３によって
接続し、このエアバランス弁は常態においては閉じてい
るが、後述のように、マイコン制御部７に設定したすゝ
ぎ工程への移行時にエアバランス１２弁を開き、次いで
新液流出弁を閉じるときそれと同時に閉じるように構成
されている。In the present invention, the washing / drying system 1 and the distillation system 2 are connected by a pipe line 13 having an air balance valve 12, and this air balance valve is normally closed. The air balance 12 valve is opened at the time of shifting to the swaging process set in the microcomputer control unit 7, and then the new liquid outflow valve is closed at the same time.
【００１５】図２に示す洗浄・乾燥系１の具体的な構成
は図３に示すとおりであって、主として、外胴、内胴よ
りなる洗浄槽１４と、洗浄槽１４中の空気を加熱すると
共に循環させ乍ら溶剤を回収する乾燥系チャンバー１５
と、ベースタンク１６とから構成されている。また、図
２に示す蒸留系２の具体的な構成は図４に示すとおりで
あって、主として、蒸留器１７およびコンデンサ１８
と、新液タンク１９とから構成されており、その新液タ
ンク１９は洗浄槽１４により高い位置に配設されると共
に新液流出弁２０を有する管路２１によって洗浄槽１４
と接続されている。The concrete structure of the cleaning / drying system 1 shown in FIG. 2 is as shown in FIG. 3, and mainly comprises a cleaning tank 14 including an outer case and an inner case, and air in the cleaning tank 14. Drying system chamber 15 that circulates with and collects the solvent
And a base tank 16. The specific configuration of the distillation system 2 shown in FIG. 2 is as shown in FIG. 4, and mainly comprises a distiller 17 and a condenser 18.
And a new liquid tank 19, which is disposed at a higher position in the cleaning tank 14 and has a conduit 21 having a new liquid outflow valve 20 for cleaning the cleaning tank 14
Connected with.
【００１６】次に、図１について本発明のすゝぎ洗い工
程制御方法を説明する。マイコン制御による溜め洗いお
よび循環洗い時には、洗浄・乾燥系１内はほゞ大気圧で
あるが、蒸留系２内は例えば−２５０ｍｍＨｇとなって
いる。この状態で循環洗いを終了し、すゝぎ洗いに移行
する際、マイコン制御部７によりエアバランス弁１２を
開いて洗浄・乾燥系１内と蒸留系２内とを均圧化させる
と共に新液流出弁２０を開く。従って双方の系内は例え
ば−１００ｍｍＨｇとなってポンプを使用することな
く、新液タンク１９中の清浄溶剤が洗浄槽１４中に円滑
に落し込まれてすゝぎ洗い工程を行ない、洗浄槽１４中
の液位が設定液位に達すると新液流出弁２０とエアバラ
ンス弁１２とを閉じると共に蒸留系バキューム弁９，９
´を開いてすゝぎ洗いおよびそれに続く乾燥工程と並列
的に蒸留工程を行なう。なお、前記の蒸留系バキューム
弁は、当初バキューム弁９を開いて蒸留系内を急速に減
圧し、次いでバキューム弁９´を開くとと共にバキュー
ム弁９を閉じ、この状態で蒸留を続行する。Next, referring to FIG. 1, the method for controlling the scrubbing step of the present invention will be described. At the time of pool washing and circulation washing by microcomputer control, the inside of the washing / drying system 1 is at about atmospheric pressure, but the inside of the distillation system 2 is, for example, -250 mmHg. When the circulation washing is completed in this state and the process proceeds to the soaking washing, the microcomputer controller 7 opens the air balance valve 12 to equalize the pressure in the washing / drying system 1 and the distillation system 2 and to discharge the new liquid. Open valve 20. Therefore, the inside of both systems becomes, for example, -100 mmHg, and the cleaning solvent in the new liquid tank 19 is smoothly dropped into the cleaning tank 14 without using a pump, and the step of cleaning is carried out. When the liquid level of the liquid reaches the set liquid level, the new liquid outflow valve 20 and the air balance valve 12 are closed, and the distillation system vacuum valves 9 and 9 are closed.
Open the ′ and carry out the distillation step in parallel with the rinsing and subsequent drying steps. The distillation system vacuum valve initially opens the vacuum valve 9 to rapidly reduce the pressure in the distillation system, then opens the vacuum valve 9'and closes the vacuum valve 9 to continue distillation in this state.
【００１７】[0017]
【発明の効果】以上述べたように、本発明によれば、す
ゝぎ洗い工程への移行に際し、エアバランス弁を開いて
洗浄・乾燥系内と蒸留系内とを均圧化させると共に新液
流出弁を開くので、蒸留系内が常に減圧されているドラ
イクリーニング装置であってもポンプを使用することな
く新液タンク中の清浄溶剤を洗浄槽に落し込んですゝぎ
洗いを行なうことができ、かつ、新液流出弁を閉じると
きにはエアバランス弁も閉じると共に蒸留系のバキュー
ム弁を開き、すゝぎ洗い工程およびそれに続く乾燥工程
と並列的に蒸留工程を行なうので、乾燥工程の終了時に
は溶剤の蒸留を完了することができる。As described above, according to the present invention, the air balance valve is opened to equalize the pressure in the cleaning / drying system and the distillation system at the time of shifting to the rinsing process, and at the same time, the new liquid is used. Since the outflow valve is opened, the cleaning solvent in the new liquid tank is dropped into the cleaning tank without using a pump even with a dry cleaning device in which the pressure inside the distillation system is constantly reduced. Moreover, when closing the new liquid outflow valve, the air balance valve is also closed and the vacuum valve of the distillation system is opened, and the distillation process is performed in parallel with the rinsing process and the subsequent drying process. The distillation can be completed.
【図１】図１は本発明のすゝぎ洗い工程制御方法の一例
を示すフローチャートである。FIG. 1 is a flowchart showing an example of a method for controlling a scrubbing process of the present invention.
【図２】図２は本発明を適用したドライクリーニング装
置の構成を概略的に示すブロック図である。FIG. 2 is a block diagram schematically showing a configuration of a dry cleaning device to which the present invention is applied.
【図３】図３は図２の洗浄・乾燥系の具体例を示す系統
図である。FIG. 3 is a system diagram showing a specific example of the cleaning / drying system of FIG.
【図４】図４は図２の蒸留系の具体例を示す系統図であ
る。FIG. 4 is a system diagram showing a specific example of the distillation system of FIG.
１…ドライクリーニング装置の洗浄・乾燥系、２…同じ
く蒸留系、３…窒素ガス投入弁、４…窒素ガスタンク、
５…窒素ガス発生装置、６…窒素ガス投入制御用圧力検
出手段、７…マイコン制御部、８…洗浄・乾燥系用の電
磁開閉バキューム弁、９，９′…蒸留系用の電磁開閉バ
キューム弁、１０…バキュームポンプ、１１…洗浄・乾
燥系の減圧制御用圧力検出手段、１２…エアバランス
弁、１３…洗浄・乾燥系と蒸留系とを結ぶ管路，１４…
洗浄槽，１５…乾燥系チャンバー，１６…ベースタン
ク，１７…蒸留器，１８…コンデンサ，１９…新液タン
ク，２０…新液流出弁。1 ... Cleaning / drying system for dry cleaning device, 2 ... Distillation system, 3 ... Nitrogen gas input valve, 4 ... Nitrogen gas tank,
5 ... Nitrogen gas generator, 6 ... Nitrogen gas injection control pressure detecting means, 7 ... Microcomputer control section, 8 ... Electromagnetic open / close vacuum valve for cleaning / drying system, 9, 9 '... Electromagnetic open / close vacuum valve for distillation system 10 ... Vacuum pump, 11 ... Pressure detection means for decompression control of cleaning / drying system, 12 ... Air balance valve, 13 ... Pipe line connecting cleaning / drying system and distillation system, 14 ...
Cleaning tank, 15 ... Drying chamber, 16 ... Base tank, 17 ... Distiller, 18 ... Condenser, 19 ... New liquid tank, 20 ... New liquid outflow valve.
Claims (1)
を投入して洗浄および乾燥工程を行ない、洗浄工程によ
り汚れた溶剤を蒸留系に移送し、その蒸留系内を減圧し
ながら溶剤を蒸留し、これにより得られた清浄溶剤を蒸
留系内の一部である新液タンクに貯留し、その新液タン
クに貯留した清浄溶剤を用いて次回の被洗物のすゝぎ洗
いを行なう可燃性溶剤使用のドライクリーニング装置に
おいて、前記洗浄・乾燥系と蒸留系とをエアバランス弁
を有する管路により接続し、マイコン制御による前記す
ゝぎ洗いに際し、先づエアバランス弁を開いて清浄・乾
燥系内と蒸留系内とを均圧化すると共に新液流出弁を開
いて新液タンク中の溶剤を洗浄槽中に落し込み、その溶
剤落し込み完了後エアバランス弁を閉じて蒸留系内を減
圧し、すゝぎ洗いおよびそれに続く乾燥工程と汚れた溶
剤の蒸留とを並列的に行なうことを特徴とする可燃性溶
剤使用のドライクリーニング装置におけるすゝぎ洗い工
程制御方法。1. A cleaning / drying system is decompressed, and then an inert gas is introduced to carry out a cleaning and drying process. The solvent contaminated by the cleaning process is transferred to a distillation system, and the solvent is decompressed in the distillation system. Is distilled, the clean solvent obtained by this is stored in a new liquid tank that is a part of the distillation system, and the next cleaning is performed using the clean solvent stored in the new liquid tank. In a dry cleaning device using a flammable solvent, the cleaning / drying system and the distillation system are connected to each other by a pipe having an air balance valve, and the air balance valve is first opened for cleaning during the microcomputer-controlled swishing. While equalizing the pressure inside the drying system and the distillation system, open the new liquid outflow valve to drop the solvent in the new liquid tank into the cleaning tank, and after the solvent has been dropped, close the air balance valve to inside the distillation system. Depressurize and wash And a subsequent drying step and distillation of a dirty solvent are performed in parallel, and a method for controlling an rinsing step in a dry cleaning device using a flammable solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17433192A JP3172587B2 (en) | 1992-07-01 | 1992-07-01 | Method of controlling washing process in dry cleaning device using flammable solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17433192A JP3172587B2 (en) | 1992-07-01 | 1992-07-01 | Method of controlling washing process in dry cleaning device using flammable solvent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0615094A true JPH0615094A (en) | 1994-01-25 |
| JP3172587B2 JP3172587B2 (en) | 2001-06-04 |
Family
ID=15976775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17433192A Expired - Fee Related JP3172587B2 (en) | 1992-07-01 | 1992-07-01 | Method of controlling washing process in dry cleaning device using flammable solvent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3172587B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0909607A1 (en) * | 1997-10-14 | 1999-04-21 | COMAU S.p.A. | Clamp device for use in welding sheet metal elements |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10144018A1 (en) | 2001-09-07 | 2003-03-27 | Linde Ag | Procedure for regulating a compressor set |
-
1992
- 1992-07-01 JP JP17433192A patent/JP3172587B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0909607A1 (en) * | 1997-10-14 | 1999-04-21 | COMAU S.p.A. | Clamp device for use in welding sheet metal elements |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3172587B2 (en) | 2001-06-04 |
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