JPH027996A - Preparatory method for starting running of dry cleaner - Google Patents
Preparatory method for starting running of dry cleanerInfo
- Publication number
- JPH027996A JPH027996A JP15815088A JP15815088A JPH027996A JP H027996 A JPH027996 A JP H027996A JP 15815088 A JP15815088 A JP 15815088A JP 15815088 A JP15815088 A JP 15815088A JP H027996 A JPH027996 A JP H027996A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- distiller
- cleaning
- dry cleaner
- 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
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002904 solvent Substances 0.000 claims abstract description 97
- 238000004140 cleaning Methods 0.000 claims abstract description 19
- 239000003960 organic solvent Substances 0.000 claims abstract description 3
- 238000005108 dry cleaning Methods 0.000 claims abstract 2
- 238000004821 distillation Methods 0.000 claims description 11
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 abstract description 14
- 238000011084 recovery Methods 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000004508 fractional distillation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 17
- 229950011008 tetrachloroethylene Drugs 0.000 description 14
- 230000001877 deodorizing effect Effects 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 238000009835 boiling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- 238000004332 deodorization Methods 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000013557 residual solvent Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はフロンＲ１１３、フロンＲ１１等の低沸点溶剤
を使用するフッ素系ドライクリーナ、及び１台の機械で
パークロルエチレンとフロンＲ１１３の組合せの如く複
数の溶剤を使用するドライクリーナの運転開始時におい
て、蒸留初期に蒸留器内圧力が異常に高圧となることを
防止するための運転開始準備方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention provides a fluorine-based dry cleaner that uses a low-boiling point solvent such as Freon R113 and Freon R11, and a dry cleaner that uses a combination of perchlorethylene and Freon R113 in one machine. The present invention relates to a preparation method for starting operation of a dry cleaner that uses a plurality of solvents to prevent the pressure inside the distiller from becoming abnormally high in the early stages of distillation.
（従来の技術）
第５図にパークロルエチレンとフロンＲ１１３の２種の
溶剤を用いるドライクリーナの一例を示している。(Prior Art) FIG. 5 shows an example of a dry cleaner using two types of solvents, perchlorethylene and Freon R113.
まず、その構成につき説明する。First, its configuration will be explained.
（１）パークロルエチレンを５ｖｏ１％前後含むフロン
Ｒ１１３溶剤４を収納する溶剤タンク３と、フロンＲ１
１３を５０ｖｏ１％前後含むパークロルエチレン溶剤４
ａを収納する溶剤タンク３ａは互いに独立して設置され
、それぞれの溶剤タンク３，３ａに対し各専用のバルブ
５，５ａが設けられている。(1) Solvent tank 3 containing Freon R113 solvent 4 containing around 5 vol% perchlorethylene, and Freon R1
Perchlorethylene solvent 4 containing around 50vol 1% of 13
The solvent tanks 3a containing the solvents 3a and 3a are installed independently from each other, and dedicated valves 5 and 5a are provided for the respective solvent tanks 3 and 3a.
混合溶剤は、あらかじめ調合したものを収納してもよい
が、現実的には互いに純粋な溶剤を始めに収納して運転
すれば、下記の分留操作により一定の混合比に定常化さ
れる。The mixed solvent may be prepared in advance, but in reality, if pure solvents are initially stored and operated, the mixing ratio will be stabilized at a constant mixing ratio by the fractional distillation operation described below.
（２）蒸留器１５には蒸留中の沸点の変化を検知するセ
ンサー３０が内蔵されており、バルブ３２と連動してい
る。(2) The distiller 15 has a built-in sensor 30 that detects changes in boiling point during distillation, and is linked to a valve 32.
蒸留器１５に排液された任意の混合液は、蒸留が始まる
と低沸点のフロンＲ１１３に冨んだ溶剤から蒸発が始ま
り、コンデンサ２７、溶剤冷却器３１の経路で液化、冷
却されて回収されてくる。この間、沸点は徐々に上昇し
、例えばセンサー３０を７０℃に設定しておき、この設
定値に到達するまでの間バルブ３２を開けておくと（こ
の時、バルブ３２ａは閉）、５ｖｏ１％前後パークロル
エチレンを含むフロンＲ１１３が水分離器２２、溶剤配
管２３を通って溶剤タンク３へと戻される。When the distillation starts, the arbitrary mixed liquid drained into the distiller 15 starts to evaporate from the solvent containing Freon R113, which has a low boiling point, and is liquefied, cooled, and recovered in the path of the condenser 27 and the solvent cooler 31. It's coming. During this time, the boiling point gradually rises. For example, if the sensor 30 is set at 70°C and the valve 32 is opened until this set value is reached (at this time, the valve 32a is closed), it will be around 5vo1%. Freon R113 containing perchlorethylene is returned to the solvent tank 3 through the water separator 22 and the solvent pipe 23.
その後は、蒸留が完了するまでバルブ３２は閉じ、この
間バルブ３２ａを開けておくと、フロンＲ１１３を含む
パークロルエチレンが水分離器２２ａ、溶剤配管２３ａ
を通って溶剤タンク３ａに戻される。Thereafter, the valve 32 is closed until the distillation is completed. If the valve 32a is left open during this time, perchlorethylene containing Freon R113 is transferred to the water separator 22a and the solvent pipe 23a.
and is returned to the solvent tank 3a.
目標とする混合比を確保するために、コンデンサ２７、
溶剤冷却器３１からなる回収経路からは溶剤の滞留部を
なくすとともに、可能な限り経路を短かくする必要があ
る。In order to ensure the target mixing ratio, a capacitor 27,
It is necessary to eliminate the solvent retention part from the recovery route consisting of the solvent cooler 31 and to make the route as short as possible.
（３）フィルタは、パークロルエチレン用フィルタ８と
フロンＲ１１３用フイルタ８ａが互いに独立して設けら
れ、溶剤の循環中に混合しないようそれぞれにバルブ７
．７ａが設けられている。(3) The filter is provided with a filter 8 for perchlorethylene and a filter 8a for Freon R113 independently of each other, and valves 7 and 7 for each are provided so that they do not mix during circulation of the solvent.
．． 7a is provided.
（４） リカバリダクト１９は処理槽１０の側面に配
置され、その内部に収納したエアクーラ１７とプレヒー
タ１８は冷凍機４２に夫々連結されている。(4) The recovery duct 19 is arranged on the side surface of the processing tank 10, and the air cooler 17 and preheater 18 housed inside the recovery duct 19 are connected to the refrigerator 42, respectively.
乾燥時は、処理ドラム１１をゆっくり回し、ファン１６
によりエアを矢印２０の向きに循環させる。衣料２から
蒸発した溶剤ガスはボタントラップ１２に内蔵したリン
トフィルタ４０を通ってエアクーラ１７で凝縮、液化さ
れる。ついでエアは冷凍機４２の排熱を利用したプレヒ
ータ１８で再び加熱され、更にサーモスタット４３で指
示された所定の温度まで補助ヒータ４１で昇温しで衣料
２を乾燥する。When drying, slowly rotate the processing drum 11 and turn on the fan 16.
The air is circulated in the direction of arrow 20. The solvent gas evaporated from the clothing 2 passes through a lint filter 40 built into the button trap 12, and is condensed and liquefied by the air cooler 17. The air is then heated again by the preheater 18 using the exhaust heat of the refrigerator 42, and further heated by the auxiliary heater 41 to a predetermined temperature specified by the thermostat 43, thereby drying the clothes 2.
乾燥が終了したら、加熱源を切ることによりエアクーラ
１７の冷却温度を下げ、溶剤ガス濃度を極限まで低減さ
せることができるため、それまでの装置の如く新鮮な空
気をとり入れて脱臭することは不要となる。When drying is completed, the cooling temperature of the air cooler 17 can be lowered by turning off the heating source, and the solvent gas concentration can be reduced to the minimum, so there is no need to take in fresh air and deodorize as with previous devices. Become.
なお、エアバッグ５０は配管を介してファン１６の吸引
側に接続されており、洗浄中に揮発して膨張した空気と
溶剤ガスの混合気を溜め、装置内の圧力上昇を防ぐとと
もに溶剤ガスの漏洩を防止するため取り付けである。The airbag 50 is connected to the suction side of the fan 16 via piping, and stores a mixture of air and solvent gas that volatilizes and expands during cleaning, and prevents pressure rise inside the device and also prevents the solvent gas from rising. It is installed to prevent leakage.
次にその作用について説明する。Next, its effect will be explained.
■ 衣料２が汚れのきついものである場合には、パーク
ロルエチレン溶剤４ａをバルブ５ａを介してポンプ６に
より汲揚げ、バルブ７、パークロルエチレン用フィルタ
８を通る経路か、またはバルブ９の経路で処理槽１０に
その必要量を送り込む。■ If the clothing 2 is heavily soiled, the perchlorethylene solvent 4a is pumped up by the pump 6 through the valve 5a, and the route passes through the valve 7 and the perchlorethylene filter 8, or the route through the valve 9. The required amount is sent to the processing tank 10.
■ 衣料２がデリケート衣料の場合には、バルブ５を介
してポンプ６により汲揚げ、バルブ７ａｓフロンＲ１１
３用フイルタ８ａを通る経路か、またはバルブ９の経路
でフロンＲ１１３溶剤４を汲揚げ処理槽１０へ送り込む
。■ If the clothing 2 is delicate clothing, it is pumped up by the pump 6 through the valve 5, and the fluorocarbon R11 is pumped up through the valve 5.
The fluorocarbon R113 solvent 4 is sent into the pumping treatment tank 10 through the route passing through the filter 8a for 3 or the route through the valve 9.
■ 汲揚げが完了すると、処理ドラム１１がゆっくり回
り、溶剤４または４ａはボタントラップ１２、バルブ１
３、ポンプ６を通りバルブ７または７ａまたは９の経路
で処理槽１ｏとの間を循環して衣料２を洗浄する。■ When pumping is completed, the processing drum 11 rotates slowly, and the solvent 4 or 4a is pumped through the button trap 12 and the valve 1.
3. The clothes 2 are washed by circulating through the pump 6 and the treatment tank 1o through the valve 7, 7a, or 9.
■ 洗浄が終了すると、バルブ１４を介し溶剤４または
４ａを蒸留器１５に排液し、つづいて処理ドラムＩＩを
高速で回転して衣料２中の溶剤を遠心分離し、同様に排
液する。(2) When the washing is completed, the solvent 4 or 4a is drained into the distiller 15 via the valve 14, and then the processing drum II is rotated at high speed to centrifugally separate the solvent in the garment 2, and the solvent is drained in the same manner.
上記の０項から０項までの工程を繰返すと、ポンプ６や
経路に６残留する溶剤４または４ａ、あるいは工程の前
後で溶剤を使い分けた場合に衣料２に残留する溶剤４ま
たは４ａはある程度互いに混合されるが、その割合を最
少比にとどめることにより互いの溶剤特性は阻害される
ことがない。When the process from item 0 to item 0 above is repeated, the solvent 4 or 4a remaining in the pump 6 or the route 6, or the solvent 4 or 4a remaining in the clothing 2 when the solvents are used before and after the process, will be mixed to some extent. Although they are mixed, by keeping the ratio to a minimum, the solvent properties of each other are not inhibited.
■ 蒸留器１５内に排液された任意の混合液は、上記（
２）項で説明した方法により再び一定の混合比に分留さ
れて、各々の溶剤タンク３または３ａにもどる。■ Any mixed liquid drained into the distiller 15 is
The solvent is fractionated again to a fixed mixing ratio by the method described in section 2) and returned to each solvent tank 3 or 3a.
■ 洗浄工程が終了すると、上記（４）項で説明した方
法により衣料２は乾燥されて全クリーニング工程は完了
する。(2) When the cleaning process is completed, the clothing 2 is dried by the method described in item (4) above, and the entire cleaning process is completed.
以上は２種類の溶剤の組合せについて述べたが、３種類
以上の溶剤についても同じ要領で取り扱われる。Although a combination of two types of solvents has been described above, three or more types of solvents can also be treated in the same manner.
方、クリーニング工程に先立ち毎日の始業時にはファン
１６と冷凍機４２のみを動作させ、いわゆる冷却脱臭の
操作をすることにより、処理槽】０、ボタン］・ラップ
１２、リカバリダクト１９に滞留する溶剤ガス濃度を極
限まで低減させ、その後にドア１を開けて衣ギ４２を投
入する。On the other hand, prior to the cleaning process, at the start of each day, only the fan 16 and the refrigerator 42 are operated, and by performing a so-called cooling and deodorizing operation, the solvent gas accumulated in the processing tank]0, button]・wrap 12, and recovery duct 19 is removed. After reducing the concentration to the utmost limit, the door 1 is opened and the dressing 42 is thrown in.
冷却脱臭の操作は、上記（４）項で説明した乾燥工程だ
けに行なっても同じ効果を得ることができる。The same effect can be obtained even if the cooling deodorization operation is performed only during the drying step described in item (4) above.
いずれにしても、新鮮な空気をとり入れて脱臭する必要
のない冷凍機を搭載したドライクリーナではかかる冷却
脱臭の操作は必ず実施される。In any case, such a cooling and deodorizing operation is always performed in a dry cleaner equipped with a refrigerator that does not require fresh air to be deodorized.
また、上記冷却脱臭とは別に、所定回数のクリーニング
がなされると、蒸留器１５０内に溜まる残渣を取除くた
め蓋が開かれ、内部の掃除が実施される。In addition to the cooling and deodorizing described above, after a predetermined number of cleanings have been performed, the lid is opened to remove the residue accumulated inside the distiller 150, and the inside is cleaned.
（発明が解決しようとする課題）
以上述べた如く洗浄に用いた溶剤は、汚れ成分、特に油
脂類のような溶剤に溶解した汚れを分離し除去するため
、必ず蒸留器を通して溶剤を再生して繰り返し利用して
いる。また１台の機械で、パークロルエチレンとフロン
Ｒ１１３のような物性の異なる複数の溶剤を使用する場
合には、互いの溶剤組成を常に一定にする目的からも、
洗浄により混合した溶剤は必ず蒸留し分留される。(Problems to be Solved by the Invention) As mentioned above, the solvent used for cleaning must be regenerated through a distiller in order to separate and remove dirt components, especially dirt dissolved in the solvent such as oils and fats. I use it repeatedly. In addition, when using multiple solvents with different physical properties such as perchlorethylene and Freon R113 in one machine, it is necessary to keep the composition of each solvent constant at all times.
The solvents mixed during washing are always distilled and fractionated.
しかし、第６図に示すように溶剤の蒸気圧は溶剤の種類
により大きく異なり、特にフロンＲ１１３及びフロンＲ
１１の如き低沸点溶剤の蒸気圧は極めて高い値を示す。However, as shown in Figure 6, the vapor pressure of the solvent varies greatly depending on the type of solvent, especially Freon R113 and Freon R
The vapor pressure of a low boiling point solvent such as No. 11 is extremely high.
このため、従来の蒸留器では、蒸留器の加熱水蒸気の圧
力を１〜１．５ ｋｇ ／ ｃｒＡ程度に減圧したり、
または蒸留完了後の過熱を防ぐため、タンク内にサーモ
スタットを配置して、蒸留が終り更に所定の温度まで上
昇すると、その後は水蒸気の供給を停止する等して蒸留
器への排液時の圧力上昇を軽減する方法がとられてきた
が、そのいずれの方法も有効でなく、結局はタンクを強
固に設計するか、または蒸発ガス回収経路を拡大し圧力
を分散させることで対処しているのが現状である。For this reason, in conventional distillers, the pressure of the heated steam in the distiller is reduced to about 1 to 1.5 kg/crA,
Alternatively, in order to prevent overheating after distillation is complete, a thermostat is placed inside the tank, and once the distillation has finished and the temperature has risen to a predetermined temperature, the supply of steam is stopped, etc., so that the pressure at the time of draining to the distiller is adjusted. Methods have been taken to reduce the rise, but none of these methods are effective, and the solution is to either design the tank more strongly or expand the evaporative gas recovery path to disperse the pressure. is the current situation.
特に、この圧力上昇は蒸留器の蓋を開けて残渣を掃除し
た直後の排液時が最も急激なものになる。これは蒸留器
内に空気が充満している上に低沸点溶剤が揮発、膨張す
ることによるものである。In particular, this pressure rise is most rapid when the liquid is drained immediately after the lid of the distiller is opened and the residue is cleaned. This is because the distiller is filled with air and the low boiling point solvent evaporates and expands.
従って、本発明は特に蒸留器の内部掃除が実施された直
後の溶剤排液時に発生する異常な内部圧力上昇を抑制す
ることを目的としてなされたものである。Therefore, the present invention has been made specifically for the purpose of suppressing the abnormal internal pressure rise that occurs when the solvent is drained immediately after the internal cleaning of the distiller is carried out.
（課題を解決するための手段及び作用）この目的を達成
すべく、本発明方法は有機溶剤を用い、使用済溶剤を蒸
留分離して回収するドライクリーニングにおいて、蒸留
器の掃除後であって、かつ運転開始前に溶剤の一部を蒸
留器に注入することを構成とし、上記課題の解決手段と
するものである。(Means and effects for solving the problem) In order to achieve this object, the method of the present invention uses an organic solvent to recover the used solvent by distillation. In addition, a part of the solvent is injected into the distiller before the start of operation, and this is a means for solving the above problem.
即ち本発明は、蒸留器内部の掃除が終った後であって、
運転が開始される前の適当な時期に、蒸留器内に溶剤を
一部注入する。蒸留器を掃除するにあたって蓋が開けら
れるため、掃除後は内部に空気分が充満しており、この
状態で溶剤の一部を注入すると蒸留器内の空気分は器外
に追い出されて溶剤ガスに置換される。That is, in the present invention, after the inside of the distiller has been cleaned,
A portion of the solvent is injected into the distiller at an appropriate time before the start of operation. When cleaning the distiller, the lid is opened, so after cleaning, the inside is filled with air. If you inject some of the solvent in this state, the air inside the distiller will be forced out of the distiller and the solvent gas will be released. will be replaced with
上記溶剤の一部を注入する時期は蒸留器内の掃除が終了
し運転が開始される以前であれば、その時期を限定する
ものではないが、既述した如く冷凍機を搭載しているド
ライクリーナの場合には始業時に必ず冷却脱臭が行なわ
れ、または乾燥工程に引き続いて冷却脱臭の操作がなさ
れるという点を考慮すると、この冷却脱臭機構を利用し
て溶剤を蒸留器に注入すれば冷却脱臭効果を更に上げる
ことができて効果的である。The timing of injecting some of the above solvent is not limited as long as the inside of the distiller has been cleaned and before operation starts, but as mentioned above, if the distiller is equipped with a refrigerator, Considering that in the case of a cleaner, cooling deodorization is always performed at the beginning of the operation, or cooling deodorization is performed following the drying process, it is possible to cool the solvent by injecting it into the distiller using this cooling deodorization mechanism. It is effective because it can further improve the deodorizing effect.
冷却脱臭操作は上記した如く、ファン１６と冷凍機４２
のみを作動して内部の残留溶剤ガスを液化しつつ水分離
器２２を介してタンク３へと導き、処理槽１０内の残留
溶剤量を極限にまで低減させるものであるが、ポンプ６
が停止し、溶剤回路中の全パルプが閉じられてはいても
、フィルタ８および８ａには冷却されて液化した溶剤が
残留する。As mentioned above, the cooling and deodorizing operation is performed using the fan 16 and the refrigerator 42.
The pump 6 is operated to liquefy the residual solvent gas inside and guide it to the tank 3 via the water separator 22 to reduce the amount of residual solvent in the treatment tank 10 to the utmost.
Even if the solvent circuit is stopped and all the pulp in the solvent circuit is closed, the cooled and liquefied solvent remains in the filters 8 and 8a.
従って、冷却脱臭工程の途中でバルブ７およびバルブ１
４を一時的に開き、液化しフィルタ内に残された溶剤を
蒸留器１５に送り込めば、冷却脱臭効果が更に改善され
ることになる。Therefore, valve 7 and valve 1 are removed during the cooling and deodorizing process.
If the filter 4 is temporarily opened and the liquefied solvent remaining in the filter is sent to the distiller 15, the cooling deodorizing effect will be further improved.
しかし、本発明の重要な点は蒸留器掃除後に充満してい
る蒸留器内の空気分を溶剤ガスで置換することにあるの
で、蒸留器への溶剤の一部注入時期は上記冷却脱臭時に
限るものでなく、例えば運転開始前の適当な時期にバル
ブ５ａおよびバルブ１４を開くとともにポンプ６を作動
させて所定量の溶剤４ａを蒸留器１５に注入することも
可能である。However, since the important point of the present invention is to replace the air in the still filled with solvent gas after cleaning the still, the timing for partially injecting the solvent into the still is limited to the above-mentioned cooling and deodorizing time. Alternatively, for example, it is also possible to open the valves 5a and 14 and operate the pump 6 at an appropriate time before the start of operation to inject a predetermined amount of the solvent 4a into the distiller 15.
沸点の異なる異種の溶剤が使用されるドライクリーナの
場合には、上記蒸留器への注入溶剤は相対的に高沸点の
溶剤とすることが好ましい。In the case of a dry cleaner in which different types of solvents with different boiling points are used, it is preferable that the solvent injected into the distiller is a solvent with a relatively high boiling point.
高沸点の溶剤であれば、蒸気圧も相対的に低く、また蒸
留器への排液時に発生し易い突沸等の心配がない。If the solvent has a high boiling point, its vapor pressure will be relatively low, and there will be no risk of bumping, which is likely to occur when the liquid is discharged to the distiller.
かくして、ドライクリーナの運転開始時には蒸留器内の
空気分は殆んどなくなり、注入溶剤ガスに置き換えられ
ているため、使用済溶剤の排液時初期における蒸留器内
の異常な圧力上昇を防止する。In this way, when the dry cleaner starts operating, the air in the distiller is almost gone and replaced by the injected solvent gas, which prevents an abnormal pressure rise in the distiller at the initial stage of draining the used solvent. .
その結果、
（１） 蒸留器タンクの強度寿命が格段に延びるとと
もに、板部の歪による異音も回避でき、装置の軽量・簡
単化が図れる。As a result, (1) the strength life of the distiller tank is significantly extended, and abnormal noise due to distortion of the plate can be avoided, making the device lighter and simpler.
（２）大気圧に近い状態で蒸発させ、安定した蒸留によ
る溶剤の浄化を可能にする。(2) It evaporates at near atmospheric pressure, making it possible to purify the solvent by stable distillation.
（実施例） 以下、本発明の実施例を第１図に基づいて説明する。(Example) Embodiments of the present invention will be described below with reference to FIG.
本実施例は蒸留器が掃除された後の運転前で、かつ冷却
脱臭時に蒸留器へ一部溶剤を注入する場合の例である。This embodiment is an example in which a portion of the solvent is injected into the distiller before operation after the distiller has been cleaned and during cooling and deodorization.
第１図はパークロルエチレン用フィルタ８と蒸留器１５
間を連通・非連通にするバルブ７および１４と冷凍機４
２およびファン１６の作動状態を示したタイムチャート
である。この冷却脱臭の工程中、ポンプ６は停止してお
り、他のバルブは全て閉じている。Figure 1 shows perchlorethylene filter 8 and distiller 15.
Valves 7 and 14 that communicate/disconnect between them and the refrigerator 4
2 is a time chart showing operating states of the fan 2 and the fan 16. During this cooling and deodorizing process, the pump 6 is stopped and all other valves are closed.
本実施例の冷却脱臭工程は、５分間冷凍機４２およびフ
ァン１６を回し、処理槽１０．ボタントラップ１２、リ
カバリダクト１９に滞留する溶剤のガス濃度を極限まで
低減させる。In the cooling deodorizing process of this embodiment, the refrigerator 42 and the fan 16 are turned for 5 minutes, and the processing tank 10. The concentration of solvent gas remaining in the button trap 12 and recovery duct 19 is reduced to the utmost limit.
効率よ（溶剤ガスを′ａ縮回収するため、ファン１６は
可能な限り低速で回して循環風量を落とし、エアクーラ
１７の冷却温度を下げている。また冷凍機４２は熱負荷
減少に伴なう運転停止を招くことのないように、圧縮冷
媒の一部をコンプレッサに送り、常に一定の温度でエア
クーラ１７を冷却できるようにしである。Efficiency (In order to condense and recover the solvent gas, the fan 16 is rotated at the lowest possible speed to reduce the circulating air volume and lower the cooling temperature of the air cooler 17. Also, the refrigerator 42 is A portion of the compressed refrigerant is sent to the compressor so that the air cooler 17 can be cooled at a constant temperature so as not to cause a shutdown.
ここで、ファン１６と冷凍機４２を起動してから９０秒
後に、１５秒間だけバルブ７とパルプ１４ヲ開ケ、パー
クロルエチレン用フィルタ８に残留している溶剤を蒸留
器１５に注入する。なお、溶剤の注入液量及び注入回数
は任意に設定することができる。また、注入する溶剤は
より蒸気圧の小さいパークロルエチレン溶剤が好ましい
。Here, 90 seconds after starting the fan 16 and the refrigerator 42, the valve 7 and the pulp 14 are opened for 15 seconds, and the solvent remaining in the perchlorethylene filter 8 is injected into the distiller 15. Note that the amount of solvent to be injected and the number of injections can be set arbitrarily. Further, the solvent to be injected is preferably perchlorethylene solvent, which has a lower vapor pressure.
第２図乃至第４図は従来の方法と本発明方法による蒸留
器内を掃除した直後における蒸留時の蒸留器内圧変化を
示すデータ線図である。FIGS. 2 to 4 are data diagrams showing changes in the internal pressure of the still during distillation immediately after cleaning the inside of the still according to the conventional method and the method of the present invention.
第２図は蒸留器の掃除後、溶剤を注入せず従来の方法で
排液した場合の蒸留器内圧力変化を示すデータ線図であ
る。同図から明らかな如く蒸留器内に一気に排液したと
き蒸留器内圧力は瞬間的にＱ、 ５ Ｘ ｋｇ ／ ｃ
ｎｌ超まで上昇する。FIG. 2 is a data diagram showing the change in pressure inside the distiller when the distiller is drained in a conventional manner without injecting a solvent after cleaning the distiller. As is clear from the figure, when the liquid is drained into the distiller all at once, the pressure inside the distiller is instantaneously Q, 5 X kg/c.
It rises to over nl.
一方、第３図は蒸留器の掃除後、運転開始までに溶剤を
注入せず、洗濯を終えて蒸留器へ排液するに先立って少
量の溶剤を２回に亘って注入したときの蒸留器内圧力変
化を示し、同図によれば第２図の従来法に比較すると圧
力の最大値が従来の２、即ち０．３ｋｇ／ｃｄ超まで下
げることができることを示している。従って、蒸留器へ
の排液を一気にせずに前取って数回に分けて溶剤を注入
しておけば、排液時の急激な圧力上昇を抑制できること
が分る。On the other hand, Figure 3 shows the distiller when no solvent was injected after cleaning the still and before starting operation, but when a small amount of solvent was injected twice after washing and before draining into the distiller. This figure shows that the maximum value of pressure can be lowered to more than 2, that is, 0.3 kg/cd compared to the conventional method shown in FIG. 2. Therefore, it can be seen that if the solvent is injected in several portions in advance, rather than draining the liquid into the distiller all at once, it is possible to suppress the rapid pressure rise during draining.
第４図は上記実施例による結果を示すもので、蒸留器の
掃除後で運転を開始する以前の冷却脱臭時にフィルタか
ら溶剤の一部を蒸留器へ注入したときの排液時の蒸留器
内圧力変化を示している。更に第４図の例では第３図の
例を参考にして、排液に先立って溶剤の一部を２回蒸留
器に注入した後排液を行なったものである。こうした２
段階に亘る一部溶剤の注入により、第２図の従来法に比
較して蒸留器内圧力の最大値が２以下の低い値（０，１
７ｋｇ／ｃ［ｌｌ）となり、第３図の場合に比較しても
その値は２以下となって、本発明方法が如何に有効であ
るかを如実に示している。Figure 4 shows the results of the above example, which shows the inside of the distiller during draining when some of the solvent was injected from the filter into the distiller during cooling deodorization after cleaning the distiller and before starting operation. Shows pressure change. Further, in the example shown in FIG. 4, with reference to the example shown in FIG. 3, a portion of the solvent is injected into the distiller twice before draining, and then the liquid is drained. These 2
By injecting a portion of the solvent over several stages, the maximum value of the distiller internal pressure is lower than 2 (0, 1) compared to the conventional method shown in Figure 2.
7 kg/c [ll], which is less than 2 even when compared with the case shown in FIG. 3, clearly showing how effective the method of the present invention is.
（発明の効果）
以下、詳細に説明した如く本発明方法によれば、蒸留器
の掃除後に何らの対策も講じていない従来法に比べ溶剤
の排液時における蒸留器内圧力の上昇を２以下に低減で
き、その結果、蒸留器タンクを強固に設計する必要がな
くなり、装置も簡単化できるため安価なドライクリーナ
が提供できる。(Effects of the Invention) As explained in detail below, according to the method of the present invention, the increase in pressure inside the distiller during draining of the solvent is reduced to 2 or less compared to the conventional method in which no measures are taken after cleaning the distiller. As a result, there is no need to design a strong distillation tank, and the equipment can be simplified, making it possible to provide an inexpensive dry cleaner.
第１図は本発明の代表的な実施例を示すタイムチャート
図、第２図は従来法により一気に排液した場合の蒸留器
内圧力データ線図、第３図は運転開始後で洗浄液の一部
を注入した後排液した場合の蒸留器内圧力のデータ線図
、第４図は本発明による蒸留器内圧力のデータ線図、第
５図は１台の機械でパークロルエチレンとフロンＲ１１
３の複数溶剤を同時に用いるドライクリーナの概略を示
す構成図、第６図はドライクリーナに用いられる各種溶
剤の蒸気圧線図である。
図の主要部分の説明
３ 、３ａ−一一各々の溶剤タンク
４・−・フロンＲ１１３溶剤
４ａ−パークロルエチレン溶剤
７．１４−・−パルプ
処理槽
蒸留器
ファン
エアクーラ
冷凍機
策６図
′＆度（−〇）
手
３売
＋１１１
正
柵二
昭和６３年１０月１７日Fig. 1 is a time chart showing a typical embodiment of the present invention, Fig. 2 is a pressure data diagram in the distiller when the liquid is drained all at once using the conventional method, and Fig. 3 is a diagram of the pressure data in the distiller when the liquid is drained at once after the start of operation. Figure 4 is a data diagram of the pressure inside the distiller according to the present invention, and Figure 5 is a data diagram of the pressure inside the distiller when the liquid is injected and then drained.
FIG. 6 is a schematic diagram showing the structure of a dry cleaner that uses a plurality of solvents at the same time. FIG. 6 is a vapor pressure diagram of various solvents used in the dry cleaner. Explanation of the main parts of the diagram 3, 3a-11 Each solvent tank 4 -- Freon R113 solvent 4a - Perchlorethylene solvent 7.14 -- Pulp processing tank Distiller fan air cooler Refrigeration mechanism 6 Figure '& Degree (-〇) Hand 3 sales + 111 Seisaku 2 October 17, 1986
Claims (1)
ライクリーニングにおいて、蒸留器の掃除後であって、
かつ運転開始前に溶剤の一部を蒸留器に注入することを
特徴とするドライクリーナの運転開始準備方法。In dry cleaning that uses organic solvents to distill and recover used solvents, after cleaning the distillation vessel,
A method for preparing to start operation of a dry cleaner, which comprises injecting a portion of the solvent into a distiller before the start of operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15815088A JPH0796077B2 (en) | 1988-06-28 | 1988-06-28 | How to prepare for dry cleaner operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15815088A JPH0796077B2 (en) | 1988-06-28 | 1988-06-28 | How to prepare for dry cleaner operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH027996A true JPH027996A (en) | 1990-01-11 |
| JPH0796077B2 JPH0796077B2 (en) | 1995-10-18 |
Family
ID=15665355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15815088A Expired - Fee Related JPH0796077B2 (en) | 1988-06-28 | 1988-06-28 | How to prepare for dry cleaner operation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0796077B2 (en) |
-
1988
- 1988-06-28 JP JP15815088A patent/JPH0796077B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0796077B2 (en) | 1995-10-18 |
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