1356110 九、發明說明： 【發明所屬技術領域】 本發明涉及用以淨化由乾洗機所採用之各種溶劑的蒸 餾裝置。 【先前技術】 . 在洗衣店等所採用的乾洗機中，比如專利文獻1等中記 載的那樣，爲了反復地使用經過對洗滌物進行清洗而受到污 染的溶劑（矽油，石油類溶劑等），係採用了對溶劑進行淨化 ® 的真空蒸餾裝置。第4圖係爲以上述文獻等中記載之過去一 般的蒸餾裝置的配管爲中心的槪要組成圖。 在乾洗機中，運用於洗滌之污染的溶劑係被供給至污染 溶劑供給流路1 2，而在污染溶劑供給閥1 3 —被打開時，則 污染的溶劑被送入蒸餾鍋10。在該蒸餾鍋10的底部設置加 熱室11，如果打開蒸汽供給閥1 5，則高溫的蒸汽通過蒸汽 供給管14流入加熱室11的內部，通過該加熱室11的內部 從蒸汽排出管16排出。藉由該蒸汽的熱量對蒸餾鍋10的底 部進行加熱，而對導入蒸餾鍋10的內部之貯存於底部的溶 劑進行加熱。在蒸餾鍋1〇的頂部連接有溶劑氣體流路17, 該溶劑氣體流路17與螺旋狀的冷凝螺旋管19連通，該冷凝 螺旋管19設置於用於對溶劑氣體進行冷卻使其冷凝液化的 第1冷凝器（冷卻器）18的內部。於是，在該蒸餾鍋10的內 部透過加熱而氣化的溶劑氣體通過溶劑氣體流路17被送入 冷凝螺旋管1 9。 冷卻水連續地供向第1冷凝器18,透過與該冷卻水的熱 1356110 交換，該冷凝螺旋管19內的溶劑氣體被冷卻而冷凝液化。 形成液體的溶劑通過止回閥20、再生溶劑閥21而送入噴射 器22。該噴射器22與真空泵23、第2冷凝器（冷卻器）24 — 起，設置於其出口端和入口端與緩衝罐27連接的再生溶劑 搪環流路26的中途。而溶劑係透過真空泵23，在該再生溶 劑循環流路26中，沿第4圖中的箭頭的方向被壓送。在該 噴射器22中從噴嘴噴射溶劑’透過此時產生的負壓以減小 連通的蒸餾鍋1〇內部的壓力’吸引由第1冷凝器18冷凝液 化的溶劑。另外，在上述緩衝罐27和再生溶劑循環流路26 循環的溶劑通過第2冷凝器24，在該第2冷凝器24的內部 設置流通冷凝水的冷卻螺旋管25，溶劑係透過與該冷卻螺旋 管25的熱交換而被冷卻。依此，被冷凝液化而流入的高溫 的溶劑受到冷卻，且因循環所造成的溶劑之溫度上升亦受到 抑制。 如同上述，在對設置於蒸餾鍋10的底部的加熱室11的 內部通以蒸汽而對該蒸餾鍋10進行加熱時，使真空泵23動 作，透過噴射器22的吸引作用而減小蒸餾鍋10內部的壓 力。依此，即使在溶劑的易燃性較高的情況下仍可防止在加 熱時著火以確保較高的安全性。 【專利文獻1】：日本國專利特開平7 —2 8 9 7 8 8號公報 【發明內容】 【發明所欲解決之課題】 在上述那樣過去的蒸餾裝置中，緩衝罐27、具有冷凝螺 旋管19的第1冷凝器18、具有冷卻螺旋管25的第2冷凝器 1356110 24等之具有較大容積的組成部件係分別單獨地設置。因此具 有所謂的構成裝置的部件數量較多、成本上升且裝置整體的 尺寸較大而必須確保較寬大的設置場所的空間之問題。 本發明是針對這樣的情況而提出的，本發明的主要目的 在於提供一種乾洗機用蒸餾裝置，其可簡化結構、削減部件 數量、並且謀求尺寸小型化。 【解決課題之手段】 爲了解決上述課題而構成的本發明係涉及一種乾洗機 • 用蒸餾裝置，該蒸餾裝置用於淨化依乾洗機的運轉所形成之 污染的溶劑，其特徵在於該蒸餾裝置包括： a) 用於對污染的溶劑進行加熱，使其氣化的蒸餾鍋； b) 冷凝管路，被導入由該蒸餾鍋取出的溶劑氣體，該冷 凝管路用於使該溶劑氣體冷凝液化； c) 用於貯存已蒸餾的溶劑的緩衝罐； d) 溶劑循環流路，該溶劑循環流路爲入口端和出口端均 與該緩衝罐連接的流路，使溶劑在該流路中循環的栗與噴射 ® 器設置於該溶劑循環流路的中途，該噴射器利用該泵產生的 溶劑的流動吸引在上述冷凝管路的內部液化的已蒸餾的溶 劑；及 e) 冷卻水或冷媒在內部流通的冷卻管路；且 以浸漬於貯存在上述緩衝罐內部中的溶劑之方式來設 置上述冷卻管路和上述冷凝管路，並且在藉由上述泵所造成 上述緩衝罐的內部之溶劑的流動之上游側設置該冷卻管 路，而在該溶劑的流動之下游側設置該冷凝管路。 1356110 在過去的蒸餾裝置中，係採用冷卻水對在蒸餾鍋中產生 的溶劑氣體進行冷凝液化，但是，在本發明的蒸餾裝置中， 係透過以浸漬於緩衝罐內的溶劑中的方式來配設被送入溶. 劑氣體的冷凝管路，採用既貯存於緩衝罐內之既進行過溫度 調整或溫度控制的溶劑而對溶劑氣體進行冷凝液化。冷凝液 化的溶劑係通過噴射器從溶劑循環流路流入緩衝罐，但是， 冷凝液化後的溶劑的溫度增加，另外，通過該溶劑循環流路 而循環的溶劑的溫度也在循環的過程中上升，故，從該溶劑 • 循環流路流入緩衝罐之溶劑的溫度相對較高。因此，爲了對 蒸餾完的溶劑進行溫度調整，設置於緩衝罐內部的冷卻管路 針對形成於該緩衝罐的內部的溶劑的流動，係設置於上述冷 凝管路的上游側。依此，從該溶劑循環流路流入該緩衝罐的 溶劑首先透過與冷卻管路的熱交換而溫度下降，藉溫度既下 降的溶劑和冷凝管路進行熱交換而增大熱交換時的溫度差 而能以良好的效率來冷卻冷凝管路內的溶劑氣體。 在這樣的本發明之蒸餾裝置中，由於過去的設置於溶劑 ® 氣體的冷凝液化用的冷凝器內部的冷凝管路、及設置於在溶 劑循環流路中循環的溶劑的冷卻（溫度調整）用冷凝器中的 冷卻管路係設置於緩衝罐的內部，故過去的緩衝罐、溶劑氣 體的冷凝液化用的冷凝器、溶劑的冷卻用電容器的3個組成 部件集中於僅僅1個緩衝罐中。由此，可大幅度地減少構成 裝置的部件數量、減少成本。另外，一般，爲了進行充分的 熱交換，冷凝器具有較大的外殼，但是，透過不需要這些部 件的方式，可減小裝置本身的尺寸。這樣，裝置的設置空間 1356110 變小，設置場所的自由度增加。 另外，在本發明的蒸餾裝置中，對於緩衝罐內部的冷卻 管路和冷凝管路的設置，可考慮有各種形式，但是作爲優選 的一種形式，可以是下述的構成，亦即，在上述緩衝罐的內 部設置對溶劑的流動進行整流的整流機構，使得經過上述溶 劑循環流路返回到上述緩衝罐的內部的溶劑在通過上述冷 卻管路周邊之後會通過上述冷凝管路周邊。 具體來說，比如，在上述緩衝罐的內部，橫向並排地設 # 置上述冷卻管路和上述冷凝管路，在該兩管路之間設置作爲 上述整流機構的分隔壁，該分隔壁在規定部位具有連通開 □。 依這樣的構成，由於在緩衝罐的內部透過與冷卻管路熱 交換而冷卻的溶劑係確實流動到冷凝管路的周邊，故可改善 溶劑和冷凝管路間之熱交換的效率，可提高蒸餾完的溶劑的 回收速度。 此外，同樣對於冷凝管路、冷卻管路的形狀可考慮各種 w 樣式，但是，爲了充分確保與溶劑的接觸面積，比如形成呈 螺旋狀捲繞的管路。但是，在此場合，由於通過呈螺旋狀捲 繞的管路的內側的軸附近的溶劑無助於熱交換，所以、可以 是在呈螺旋狀捲繞的管路的內側設置筒狀的隔壁之構成。依 此，作爲熱交換對象的溶劑可在呈螺旋狀捲繞的管路的附近 流動，比如，可在冷凝管路的周圍以良好的效率對溶劑氣體 進行冷卻。 【實施方式】 1356110 以下、茲參照第1圖〜第3圖，對本發明的蒸餾裝 一個實施例進行描述。第1圖係以採用本實施例的蒸餾 的乾洗機的配管通路爲中心的主要部分的組成圖，第2 以本實施例的蒸餾裝置的配管通路爲中心的組成圖，第 係本實施例的蒸餾裝置的簡化外觀上視圖。 首先，根據第1圖，對以採用本實施例的蒸餾裝置 洗機的溶劑的流動爲中心，對結構進行描述。另外，第 的乾洗機具有乾燥功能，但在此省略對其組成的描述。 • 在外槽30內部，周圍具有多個通液孔的圓筒狀之 31係以可旋轉的方式被軸支承，溶劑的供液管路32和 管路33與該外槽30連接。該排液管路33與鈕扣捕獲 連接，該鈕扣捕獲器34具有檢測滾筒31內的溶劑在規 位之標準液位開關34a，以及檢測外槽30內的溶劑排出 液液位開關34b。該鈕扣捕獲器34爲用於去除混入到已 的溶劑中的衣物的鈕扣那樣的固體物的一種過濾器。貯 滌所採用的溶劑用的溶劑箱3 5的供液口 3 5 a和鈕扣捕 ^ 34的排液口 34c分別通過供液閥VL1和排液閥VL2而 以與泵36的入口連接。該泵36的出口經過止回閥37, 第1三通切換閥VL3與過濾器38的入口或出口中任一 接。過濾器3 8係由紙過濾器、活性炭過濾器等所構成 以去除混入溶劑中之細微的灰塵等的雜質。 該過濾器38的流出口還與溶劑冷卻器39連接。該 冷卻器39根據需要而具有熱交換器，該熱交換器具有 冷卻機45循環供給的冷卻水通過的配管，藉$在該熱 置的 裝置 圖係 3圖 的乾 1圖 滾筒 排液 器3 4 定液 之排 排出 存洗 獲器 匯合 透過 者連 ，用 溶劑 讓從 交換 -10- 1356110 器中與溶劑進行熱交換以對該溶劑進行冷卻。在該溶劑冷卻 器39的下游側，設置有溶劑溫度感測器40和肥皂濃度感測 器41，另外，該下游側的流路係透過第2三通切換閥VL4 而與供液管路32或溶劑箱35中任一者連接。此外，在泵36 的入口，隔著肥皂供給閥VL5而連接肥皂貯存槽43。此外， 過濾器38的流入口隔著汙物溶劑供給流路12也與蒸餾裝置 44的溶劑入口連接，該蒸餾裝置44的溶劑出口透過淨化溶 劑流出流路28經由水分離器42而與溶劑箱35連接。該水 • 分離器42係將混入到溶劑中的水分離而僅僅使溶劑返回到 溶劑箱35者，在乾燥運轉時，透過對從外槽30的內部排出 的空氣中所包含的溶劑氣體進行冷凝液化處理而回收的溶 劑也被送入該水分離器42。另外，雖然在這裏未設置，但是 考慮到在溶劑的溫度過低於目標溫度（比如約25 °C )的場 合，也可將對溶劑適度進行加熱用的加熱器與溶劑冷卻器39 —起使用。 在上述那樣構成之溶劑的流通通路中，例如、在爲了進 W 行清洗運轉而將貯存於溶劑箱3 5中的溶劑供給到外槽3 〇的 內部的場合時，關閉排液閥VL2打開供液閥VL1，透過第2 三通切換閥VL4將溶劑冷卻器39的出口與供液管路32側連 接，並且泵36的出口側透過第1三通切換閥VL3與過據器 38的入口連接而驅動泵36。另外，設置於後述的蒸飽裝置 44之汙物溶劑供給流路12上的汙物溶劑供給閥13係事先關 閉。於是，貯存於溶劑箱35中的溶劑經過供液閥VL1、栗 36、第1三通切換閥VL3、過濾、器38、溶劑冷卻器39、第2 1356110 三通切換閥VL4而從供液管路32供給到外槽30的內部。接 著，將溶劑從溶劑箱35供給到外槽30的內部，直到標準液 位開關34a檢測到在外槽30的內部既貯存了規定量的溶劑。 在利用標準液位開關34a檢測出既到達規定液位時，則 關閉供液閥VL1，並且打開排液閥VL2。依此，貯存於外槽 30的內部的溶劑通過排液管路33、排液閥VL2、泵36、第 1三通切換閥VL3、過濾器38,溶劑冷卻器39、第2三通切 換閥VL4，在外槽30的內部循環。於是，在清洗運轉中， # 溶劑如同上述那樣被循環供給，從洗滌衣物排出的固體物由 鈕扣捕獲器34所捕獲，另外，溶劑通過過濾器3 8而被淨化。 此外在清洗運轉時，爲了提高清洗性能並且如同後述那樣可 防止帶電，係以可形成適合的肥皂濃度的方式投入肥皂。而 肥皂投入動作係藉由在使栗3 6動作的狀態下打開肥皂供給 閥VL5來實現。 在規定的清洗運轉結束而排出貯存在外槽30中的溶劑 的場合時，打開排液閥VL2，關閉供液閥VL1，透過第1三 ^ 通切換閥VL3，將泵36的出口側與過濾器38的入口側連 接’並且打開蒸餾裝置44內的污染溶劑供給閥13而驅動泵 36。於是，溶劑從外槽3〇的內部經過排液管路33、鈕扣捕 獲器34、排液閥VL2、泵36、第1三通切換閥VL3、污染 溶劑供給流路1 2流入該蒸餾裝置44 ’如同後述那樣，在該 蒸餾裝置44依蒸餾而淨化的溶劑係經過淨化溶劑流出流路 28、水分離器42返回到溶劑箱35。在此場合，可在將洗滌 所採用的溶劑回收到溶劑箱35中的過程中利用該蒸餾裝置 1356110 44對溶劑進行淨化。 如此’蒸餾裝置44係用於對因清洗運轉而污染的溶劑 進行淨化的場合。本發明的主要特點在於該蒸餾裝置44的 結構。以下、參照第2圖、第3圖進行描述。在第2圖、第 3圖中’爲了使與第4圖所示之過去的蒸餾裝置的組成部件 間的對應關係更明確，對於同一或相應的組成部件係採用同 —標號。 設置有上述污染溶劑供給閥13的汙物溶劑供給流路12 係與蒸餾鍋10連接，在蒸餾鍋10的底部設置有加熱室11， 該加熱室11藉由通過蒸汽供給管14而供給的高溫的蒸汽進 ] 行加熱。透過該加熱而在蒸餾鍋10的內部氣化的溶劑氣體 係通過溶劑氣體流路17而被送入屬本發明冷凝管路的冷凝 螺旋管1 9，但是在這裏，並未存在有利用冷卻水來對冷凝螺 旋管1 9進行冷卻的第1冷凝器，冷凝螺旋管1 9係設置於貯 存有溶劑的緩衝罐27的內部。如同後述那樣，在冷凝螺旋 管19的內部冷凝液化的溶劑係經過再生溶劑閥21而被導入 噴射器22。 噴射器22係與過去相同，與真空泵23 —起被插入於其 出口端和入口端被連接於緩衝罐27的再生溶劑循環流路26 的中途，但是並未具有過去所存在的第2冷凝器。而將其取 而代之的是，以浸漬於緩衝罐27的內部溶劑中的方式來設 置本發明之屬冷卻管路的冷卻螺旋管25。即’在本實施例的 蒸餾裝置44中，在過去是設置於分別獨立的冷凝器的內部 的冷凝螺旋管19和冷凝螺旋管25係均設置於緩衝罐27的 -13- 1356110 內部。當真空泵23動作時，在再生溶劑循環流路26中，溶 劑係沿第2圖中箭頭所示的方向被壓送，依此，蒸餾鍋10 內部的壓力減少、冷凝液化的溶劑受到吸引的情況係與過去 相同。 如同第3(a)圖所示那樣，在緩衝罐27的內部，溶劑氣 體是從上方流入的冷凝螺旋管19和冷卻水是從上方流入的 冷卻螺旋管25係沿著橫向並排設置。但是，在該冷凝螺旋 管19和冷卻螺旋管25之間，從上方垂設而底部開口的第1 分隔壁271，與從下方立設而頂部開口的第2分隔壁272係 作爲本發明的整流機構而設置。另外，在冷凝螺旋管19的 內側設置圓筒狀的隔壁273。作爲再生溶劑循環流路26的溶 劑的返回口的再生溶劑的流入端274係設置於用以接納冷卻 螺旋管25之側的底壁面且爲與第1分隔壁271離開的位置。 另一方面，作爲朝向再生溶劑循環流路26之溶劑的送出口 的再生溶劑的流出端275係設置於用以接納冷卻螺旋管19 之側的底壁面且爲與第2分隔壁272離開的位置。 如同上述那樣，在真空泵23動作時，在再生溶劑循環 流路26中，溶劑沿規定方向流動，在緩衝罐27的內部也形 成溶劑的流動。即，如同第3(a)圖中的箭頭所示的那樣，由 真空泵23所壓送的溶劑係從再生溶劑的流入端274以良好 的勢頭上升而來，故、該液流在緩衝罐27的內部，上升到 接近液面處後，沿第1分隔壁271而下降，經過第1分隔壁 271的底部開口而在由第1分隔壁271和第2分隔壁272所 包夾的區域中上升。另外，該溶劑經過第2分隔壁2 72的頂 1356110 部開口，流入收納有冷凝螺旋管1 9的一側，然後下降而到 '達再生溶劑的流出端2 75。此時，由於溶劑未流到圓筒隔壁 2 72的內側，故、溶劑必然會通過冷凝螺旋管1 9的附近。即， 第1分隔壁271、第2分隔壁272和圓筒隔壁273係用於限 制緩衝罐27內的溶劑的流動方向和位置者。 如同上述那樣，從再生溶劑循環流路26返回到緩衝罐 27的溶劑首先透過與冷卻水流過的冷卻螺旋管25進行熱交 換而進行冷卻。此時，由於溶劑的流動係如同上述那樣會在 • 接近液面附近折回，故與冷卻螺旋管25進行熱交換的機會 增加，溶劑係被以良好的效率冷卻而、溫度下降。如此而溫 度下降的溶劑係在冷凝螺旋管19的周圍流動。冷凝螺旋管 19係從上方被供給溶劑氣體，但是，由於在冷凝螺旋管19 的周圍流動的溶劑之溫度較低，故透過與該溶劑的熱交換， 該冷凝螺旋管19內的溶劑氣體係受冷卻而冷凝液化》依此， 既液化的溶劑係從冷凝螺旋管19的底端流出，如同上述那 樣被送往噴射器22。 ^ 通常，像這樣在2個流體之間進行熱交換的場合，兩方 之流體的流動方向係以相互呈反向時較能獲得良好的熱交 換效率。但是，在本實施例的蒸餾裝置44中，從用於以緊 湊的方式收納裝置整體之配管的情況來說，在冷凝螺旋管19 內的溶劑氣體和溶劑的流動方面，整體上係從上向下，已冷 卻的溶劑的流動也同樣爲從上向下之相同的方向。因此，雖 然熱交換的效率具有變差的傾向，但是爲了補償該情況，透 過將圓筒隔壁273設置於冷凝螺旋管19的內側，而使已冷 1356110 . 卻的溶劑得以有效率地與冷凝螺旋管19接觸。依此’即使 在該冷凝螺旋管19內的溶劑氣體及溶劑的流動與已冷卻的 溶劑的流動的方向是相同的情況下，仍可有效率地冷卻溶劑 氣體而使其冷凝液化。 在本實施例的蒸餾裝置44中，由於如同上述那樣的過 去設置的第1和第2冷凝器與緩衝罐27係形成一體，故與 真空泵23連接的配管係非常簡化。由此，如同第3圖所示 那樣、可形成將配管部29集中在緩衝罐27下方的空間中而 • 在其後部設置蒸餾鍋10的構成，並可達成節省空間的目的。 另外，由於第1和第2冷凝器的外裝成爲不需要且溶劑的配 管也減少，故可減少部件數量，還可實現成本的降低。 此外，上述實施例爲本發明的一個實例，但是顯然，在 本發明的主旨的範圍內，即使適當地進行變形、修正、添加， 仍然爲本案申請專利範圍所包含。 【圖式之簡單說明】 【第1圖】係以採用本發明的一個實施例的蒸飽裝置的 乾洗機的配管通路爲中心的主要部分的組成圖； 【第2圖】係以本實施例的蒸餾裝置的配管通路爲中心 的組成圖； 【第3(a)、（b)圖】係本實施例的蒸餾裝置之簡化外 ' 觀的上視圖； 【第4圖】係以過去的蒸餾裝置的配管通路爲中心的組 成圖。 【主要元件符號】 -16- 13561101356110 IX. Description of the Invention: [Technical Field] The present invention relates to a distillation apparatus for purifying various solvents used in a dry cleaning machine. [Prior Art] In the dry cleaning machine used in the laundry, for example, as described in Patent Document 1, etc., in order to repeatedly use a solvent (such as eucalyptus oil or petroleum solvent) which is contaminated by washing the laundry, A vacuum distillation unit for purifying the solvent is used. Fig. 4 is a schematic diagram showing the composition of the piping of the conventional distillation apparatus described in the above documents and the like. In the dry cleaning machine, the solvent for the contamination of the washing is supplied to the contaminated solvent supply flow path 12, and when the contaminated solvent supply valve 13 is opened, the contaminated solvent is sent to the distillation pot 10. A heating chamber 11 is provided at the bottom of the distillation pot 10. When the steam supply valve 15 is opened, high-temperature steam flows into the heating chamber 11 through the steam supply pipe 14, and is discharged from the steam discharge pipe 16 through the inside of the heating chamber 11. The bottom portion of the distillation pot 10 is heated by the heat of the steam, and the solvent stored in the bottom portion introduced into the inside of the distillation pot 10 is heated. A solvent gas flow path 17 is connected to the top of the distillation pot 1A, and the solvent gas flow path 17 communicates with a spiral condensing spiral tube 19 which is provided for cooling and liquefying the solvent gas. The inside of the first condenser (cooler) 18. Then, the solvent gas vaporized by heating in the inside of the distillation pot 10 is sent to the condensing spiral pipe 19 through the solvent gas flow path 17. The cooling water is continuously supplied to the first condenser 18, and is exchanged with the heat 1356110 of the cooling water, and the solvent gas in the condensing coil 19 is cooled and condensed and liquefied. The solvent forming the liquid is sent to the injector 22 through the check valve 20 and the regeneration solvent valve 21. The ejector 22 is provided in the middle of the regenerating solvent loop circuit 26 which is connected to the buffer tank 27 at the outlet end and the inlet end thereof, together with the vacuum pump 23 and the second condenser (cooler) 24. The solvent is passed through the vacuum pump 23 and is pressure-fed in the direction of the arrow in Fig. 4 in the regenerated solvent circulation flow path 26. In the ejector 22, the solvent is ejected from the nozzle to transmit the solvent condensed and liquefied by the first condenser 18 by reducing the pressure generated inside the distillation pot 1 by the negative pressure generated at this time. Further, the solvent circulated in the buffer tank 27 and the regeneration solvent circulation flow path 26 passes through the second condenser 24, and a cooling spiral tube 25 through which condensed water flows is provided inside the second condenser 24, and the solvent-based transmission and the cooling spiral are provided. The tube 25 is cooled by heat exchange. As a result, the high-temperature solvent which is condensed and liquefied flows is cooled, and the temperature rise of the solvent due to the circulation is also suppressed. As described above, when the inside of the heating chamber 11 provided at the bottom of the distillation pot 10 is steamed to heat the distillation pot 10, the vacuum pump 23 is operated to reduce the inside of the distillation pot 10 by the suction action of the ejector 22. pressure. According to this, even when the flammability of the solvent is high, ignition can be prevented from being heated to ensure high safety. [Patent Document 1] Japanese Patent Application Laid-Open No. Hei 7-2898 8 8 [Invention] [Problems to be Solved by the Invention] In the conventional distillation apparatus described above, the buffer tank 27 has a condensing spiral tube The constituent members having a large volume such as the first condenser 18 of 19 and the second condenser 1356110 24 having the cooling spiral tube 25 are separately provided. Therefore, there is a problem that the number of components having a so-called constituting device is large, the cost is increased, and the overall size of the device is large, and it is necessary to secure a space of a wide installation place. The present invention has been made in view of such circumstances, and a main object of the present invention is to provide a distillation apparatus for a dry cleaning machine which can simplify the structure, reduce the number of components, and reduce the size. [Means for Solving the Problems] The present invention to solve the above problems relates to a dry cleaning machine using a distillation apparatus for purifying a contaminated solvent formed by operation of a dry cleaning machine, characterized in that the distillation apparatus includes : a) a distillation pot for heating the contaminated solvent to vaporize it; b) a condensing line, which is introduced into the solvent gas taken out from the distillation pot, the condensing line being used to condense and liquefy the solvent gas; c) a buffer tank for storing the distilled solvent; d) a solvent circulation flow path, which is a flow path connecting the inlet end and the outlet end to the buffer tank, so that the solvent circulates in the flow path a pump and a sprayer are disposed in the middle of the solvent circulation flow path, and the ejector uses the flow of the solvent generated by the pump to attract the distilled solvent liquefied inside the condensing line; and e) the cooling water or the refrigerant is internally Circulating cooling line; and arranging the cooling line and the condensing line in a manner of immersing in a solvent stored in the interior of the buffer tank, and by the pump The cooling pipe is disposed on the upstream side of the flow of the solvent inside the buffer tank, and the condensing pipe is disposed on the downstream side of the flow of the solvent. 1356110 In the conventional distillation apparatus, the solvent gas generated in the distillation pot is condensed and liquefied by using cooling water. However, in the distillation apparatus of the present invention, the solvent is immersed in a solvent in the buffer tank. The condensing line into which the solvent gas is supplied is condensed and liquefied by using a solvent which has been subjected to temperature adjustment or temperature control stored in the buffer tank. The condensed liquefied solvent flows into the buffer tank from the solvent circulation flow path by the ejector, but the temperature of the condensed liquefied solvent increases, and the temperature of the solvent circulated through the solvent circulation flow path also rises during the cycle. Therefore, the temperature of the solvent flowing from the solvent/circulation flow path into the buffer tank is relatively high. Therefore, in order to adjust the temperature of the distilled solvent, the cooling line provided inside the buffer tank is provided on the upstream side of the condensing line with respect to the flow of the solvent formed inside the buffer tank. Accordingly, the solvent flowing into the buffer tank from the solvent circulation flow path first passes through heat exchange with the cooling pipe to lower the temperature, and heat exchange is performed by the solvent and the condensation pipe whose temperature is lowered to increase the temperature difference during heat exchange. The solvent gas in the condensing line can be cooled with good efficiency. In the distillation apparatus of the present invention, the condensing line provided in the condenser for condensing and liquefying the solvent® gas and the cooling (temperature adjustment) of the solvent which is disposed in the solvent circulation flow path are used. Since the cooling line in the condenser is provided inside the buffer tank, the three components of the conventional buffer tank, the condenser for condensing and liquefying the solvent gas, and the capacitor for cooling the solvent are concentrated in only one buffer tank. Thereby, the number of components constituting the device can be greatly reduced, and the cost can be reduced. Further, in general, the condenser has a large outer casing for sufficient heat exchange, but the size of the device itself can be reduced by the manner in which these components are not required. Thus, the installation space 1356110 of the device becomes smaller, and the degree of freedom of the installation place increases. Further, in the distillation apparatus of the present invention, various forms may be considered for the arrangement of the cooling line and the condensation line inside the buffer tank, but as a preferred form, the following configuration may be employed, that is, in the above The inside of the buffer tank is provided with a rectifying mechanism that rectifies the flow of the solvent, so that the solvent returned to the inside of the buffer tank through the solvent circulation flow path passes through the periphery of the condensing line after passing through the periphery of the cooling pipe. Specifically, for example, in the inside of the buffer tank, the cooling duct and the condensing duct are disposed side by side in the lateral direction, and a partition wall as the rectifying mechanism is disposed between the two ducts, and the partition wall is provided The part has a connected opening. According to such a configuration, since the solvent cooled in the interior of the buffer tank through the heat exchange with the cooling line does flow to the periphery of the condensing line, the efficiency of heat exchange between the solvent and the condensing line can be improved, and the distillation can be improved. The rate of recovery of the finished solvent. Further, various w patterns can be considered for the shape of the condensing line and the cooling line as well, but in order to sufficiently secure the contact area with the solvent, for example, a piping which is spirally wound is formed. However, in this case, since the solvent in the vicinity of the shaft passing through the inner side of the spirally wound pipe does not contribute to heat exchange, a cylindrical partition wall may be provided inside the pipe wound in a spiral shape. Composition. Accordingly, the solvent as the object of heat exchange can flow in the vicinity of the spirally wound pipe, for example, the solvent gas can be cooled with good efficiency around the condensing pipe. [Embodiment] 1356110 Hereinafter, an embodiment of the distillation apparatus of the present invention will be described with reference to Figs. 1 to 3 . 1 is a composition diagram of a main portion centering on a piping passage of the dry cleaning machine using the distillation of the present embodiment, and a second composition diagram centering on a piping passage of the distillation apparatus of the present embodiment, the first embodiment of the present embodiment. A simplified top view of the distillation unit. First, according to Fig. 1, the structure will be described centering on the flow of the solvent in the washing apparatus using the distillation apparatus of the present embodiment. Further, the first dry cleaning machine has a drying function, but a description of its composition is omitted here. • Inside the outer tank 30, a cylindrical 31 having a plurality of liquid passage holes is rotatably supported, and a solvent supply line 32 and a line 33 are connected to the outer tank 30. The drain line 33 is coupled to a button catcher 34 having a standard level switch 34a for detecting the solvent in the drum 31, and a solvent discharge level switch 34b for detecting the outer tank 30. The button catcher 34 is a filter for removing solid matter such as buttons of laundry mixed in the solvent. The liquid supply port 3 5 a of the solvent tank 35 for the solvent used for the storage and the liquid discharge port 34c of the button catch 34 are connected to the inlet of the pump 36 through the liquid supply valve VL1 and the liquid discharge valve VL2, respectively. The outlet of the pump 36 passes through a check valve 37, and the first three-way switching valve VL3 is connected to either the inlet or the outlet of the filter 38. The filter 38 is composed of a paper filter, an activated carbon filter or the like to remove impurities such as fine dust mixed in the solvent. The outflow port of the filter 38 is also connected to a solvent cooler 39. The cooler 39 has a heat exchanger having a pipe through which the cooling water circulated and supplied by the cooling machine 45 passes, as shown in the figure, in the case of the hot device 3, the dry 1 drawing drum discharge device 3 4 The drain of the fixed liquid is discharged from the concentrator, and the solvent is exchanged with the solvent from the exchange -10- 1356110 to cool the solvent. On the downstream side of the solvent cooler 39, a solvent temperature sensor 40 and a soap concentration sensor 41 are provided, and the downstream side flow path passes through the second three-way switching valve VL4 and the liquid supply line 32. Or any of the solvent tanks 35 are connected. Further, at the inlet of the pump 36, the soap storage tank 43 is connected via the soap supply valve VL5. Further, the inflow port of the filter 38 is also connected to the solvent inlet of the distillation apparatus 44 via the dirt solvent supply flow path 12, and the solvent outlet of the distillation apparatus 44 passes through the purification solvent outflow path 28 via the water separator 42 and the solvent tank. 35 connections. The water separator 26 separates the water mixed in the solvent and returns only the solvent to the solvent tank 35, and condenses the solvent gas contained in the air discharged from the inside of the outer tank 30 during the drying operation. The solvent recovered by the liquefaction treatment is also sent to the water separator 42. Further, although not provided here, it is considered that when the temperature of the solvent is too lower than the target temperature (for example, about 25 ° C), the heater for appropriately heating the solvent may be used together with the solvent cooler 39. . In the flow path of the solvent configured as described above, for example, when the solvent stored in the solvent tank 35 is supplied to the inside of the outer tank 3 in order to perform the cleaning operation, the liquid discharge valve VL2 is closed and opened. The liquid valve VL1 connects the outlet of the solvent cooler 39 to the supply line 32 side through the second three-way switching valve VL4, and the outlet side of the pump 36 is connected to the inlet of the passer 38 through the first three-way switching valve VL3. The pump 36 is driven. Further, the dirt solvent supply valve 13 provided in the dirt solvent supply flow path 12 of the steaming device 44 to be described later is previously closed. Then, the solvent stored in the solvent tank 35 passes through the liquid supply valve VL1, the pump 36, the first three-way switching valve VL3, the filter 38, the solvent cooler 39, and the second 1356110 three-way switching valve VL4 from the supply pipe. The road 32 is supplied to the inside of the outer tank 30. Then, the solvent is supplied from the solvent tank 35 to the inside of the outer tank 30 until the standard level switch 34a detects that a predetermined amount of solvent is stored inside the outer tank 30. When it is detected by the standard level switch 34a that the predetermined liquid level is reached, the liquid supply valve VL1 is closed, and the liquid discharge valve VL2 is opened. Accordingly, the solvent stored in the inside of the outer tank 30 passes through the drain line 33, the drain valve VL2, the pump 36, the first three-way switching valve VL3, the filter 38, the solvent cooler 39, and the second three-way switching valve. VL4 circulates inside the outer tank 30. Then, in the washing operation, the # solvent is circulated as described above, and the solid matter discharged from the laundry is caught by the button catcher 34, and the solvent is purified by the filter 38. Further, in the cleaning operation, in order to improve the cleaning performance and to prevent charging as will be described later, the soap is introduced in such a manner that a suitable soap concentration can be formed. The soap input operation is realized by opening the soap supply valve VL5 while the pump 36 is being operated. When the predetermined storage operation is completed and the solvent stored in the outer tank 30 is discharged, the liquid discharge valve VL2 is opened, the liquid supply valve VL1 is closed, and the first three-way switching valve VL3 is passed, and the outlet side of the pump 36 is connected to the filter. The inlet side of 38 is connected to 'and the contaminated solvent supply valve 13 in the distillation apparatus 44 is opened to drive the pump 36. Then, the solvent flows from the inside of the outer tank 3 through the drain line 33, the button catcher 34, the drain valve VL2, the pump 36, the first three-way switching valve VL3, and the contaminated solvent supply flow path 12 into the distillation apparatus 44. As will be described later, the solvent purified by distillation in the distillation apparatus 44 passes through the purification solvent outflow channel 28 and the water separator 42 returns to the solvent tank 35. In this case, the solvent can be purified by the distillation apparatus 1356110 44 in the process of recovering the solvent used for washing into the solvent tank 35. Thus, the distillation apparatus 44 is used for purifying a solvent contaminated by a washing operation. The main feature of the present invention resides in the structure of the distillation apparatus 44. Hereinafter, description will be made with reference to FIGS. 2 and 3 . In the drawings 2 and 3, in order to clarify the correspondence relationship between the components of the conventional distillation apparatus shown in Fig. 4, the same or corresponding constituent members are denoted by the same reference numerals. The dirt solvent supply flow path 12 provided with the above-described contaminated solvent supply valve 13 is connected to the distillation pot 10, and a heating chamber 11 is provided at the bottom of the distillation pot 10, and the heating chamber 11 is supplied with high temperature by the steam supply pipe 14. The steam enters the line to heat up. The solvent gas system vaporized inside the distillation pot 10 by this heating is sent to the condensing coil 1 of the condensing line of the present invention through the solvent gas flow path 17, but here, there is no use of cooling water. The first condenser for cooling the condensing spiral tube 19 is provided inside the buffer tank 27 in which the solvent is stored. As will be described later, the solvent condensed and liquefied inside the condensing coil 19 passes through the regenerating solvent valve 21 and is introduced into the ejector 22. The ejector 22 is inserted in the middle of the regenerated solvent circulation flow path 26 connected to the buffer tank 27 at the outlet end and the inlet end thereof in the same manner as in the past, but does not have the second condenser existing in the past. . Instead, the cooling spiral tube 25 of the cooling line of the present invention is provided in such a manner as to be immersed in the internal solvent of the buffer tank 27. That is, in the distillation apparatus 44 of the present embodiment, the condensing spiral tube 19 and the condensing spiral tube 25 which are disposed inside the respective independent condensers are all disposed inside the -13-1356110 of the buffer tank 27. When the vacuum pump 23 is operated, the solvent is pressure-fed in the direction indicated by the arrow in FIG. 2 in the regeneration solvent circulation flow path 26, whereby the pressure inside the distillation pot 10 is reduced, and the solvent in which the condensed liquid is sucked is attracted. The same as in the past. As shown in Fig. 3(a), in the inside of the buffer tank 27, the solvent gas is a condensing spiral pipe 19 which flows in from above, and the cooling water pipe 25 in which the cooling water flows in from above is arranged side by side in the lateral direction. However, between the condensing spiral pipe 19 and the cooling spiral pipe 25, the first partition wall 271 which is suspended from above and which is open at the bottom, and the second partition wall 272 which is erected from below and which is open at the top are used as the rectification of the present invention. Set up by the agency. Further, a cylindrical partition wall 273 is provided inside the condensing spiral tube 19. The inflow end 274 of the regenerating solvent as the return port of the solvent of the regenerating solvent circulation flow path 26 is provided at a position on the bottom wall surface on the side for receiving the cooling spiral tube 25 and away from the first partition wall 271. On the other hand, the outflow end 275 of the regenerating solvent as the delivery port of the solvent toward the regenerating solvent circulation flow path 26 is provided at a position to receive the bottom wall surface on the side of the cooling coil 19 and away from the second partition wall 272. . As described above, when the vacuum pump 23 is operated, the solvent flows in the predetermined direction in the regenerated solvent circulation flow path 26, and the flow of the solvent is also formed inside the buffer tank 27. That is, as indicated by the arrow in Fig. 3(a), the solvent pumped by the vacuum pump 23 rises from the inflow end 274 of the regenerated solvent with a good momentum, so that the liquid flow is in the buffer tank 27 After rising to the liquid level, the interior of the first partition wall 271 is lowered and passes through the bottom opening of the first partition wall 271 to rise in the area surrounded by the first partition wall 271 and the second partition wall 272. . Further, the solvent is opened through the top portion 1356110 of the second partition wall 2 72, flows into the side where the condensing spiral tube 19 is accommodated, and then descends to the 'outflow end 2 75 of the regenerated solvent. At this time, since the solvent does not flow to the inside of the cylindrical partition wall 272, the solvent necessarily passes through the vicinity of the condensing spiral tube 19. That is, the first partition wall 271, the second partition wall 272, and the cylindrical partition wall 273 are used to restrict the flow direction and position of the solvent in the buffer tank 27. As described above, the solvent returned from the regeneration solvent circulation flow path 26 to the buffer tank 27 is first cooled by heat exchange with the cooling coil 25 through which the cooling water flows. At this time, since the flow of the solvent is folded back near the liquid surface as described above, the chance of heat exchange with the cooling coil 25 is increased, and the solvent is cooled with good efficiency and the temperature is lowered. The solvent whose temperature is lowered in this way flows around the condensing spiral tube 19. The condensing spiral tube 19 is supplied with the solvent gas from above. However, since the temperature of the solvent flowing around the condensing spiral tube 19 is low, the solvent gas system in the condensing spiral tube 19 is subjected to heat exchange with the solvent. Cooling and condensing liquefaction. Accordingly, the liquefied solvent flows out from the bottom end of the condensing coil 19 and is sent to the ejector 22 as described above. ^ Generally, in the case where heat is exchanged between two fluids as described above, the flow directions of the two fluids are relatively reversed to obtain a good heat exchange efficiency. However, in the distillation apparatus 44 of the present embodiment, in terms of piping for accommodating the entire apparatus in a compact manner, the flow of the solvent gas and the solvent in the condensing spiral tube 19 as a whole is from the top to the top. The flow of the cooled solvent is also in the same direction from top to bottom. Therefore, although the efficiency of heat exchange tends to be deteriorated, in order to compensate for this, by disposing the cylindrical partition wall 273 on the inner side of the condensing spiral tube 19, the solvent which has been cooled 1356110 is efficiently condensed with the condensed spiral. Tube 19 is in contact. According to this, even when the flow of the solvent gas and the solvent in the condensing coil 19 is the same as the direction in which the cooled solvent flows, the solvent gas can be efficiently cooled and condensed and liquefied. In the distillation apparatus (44) of the present embodiment, since the first and second condensers which have been disposed as described above are integrally formed with the buffer tank (27), the piping connected to the vacuum pump (23) is simplified. Thereby, as shown in Fig. 3, the piping portion 29 can be concentrated in the space below the buffer tank 27, and the configuration of the distillation pot 10 can be provided at the rear portion thereof, and space saving can be achieved. Further, since the exterior of the first and second condensers is unnecessary and the piping of the solvent is also reduced, the number of components can be reduced, and the cost can be reduced. Further, the above-described embodiments are an example of the present invention, but it is apparent that within the scope of the gist of the present invention, even if it is appropriately modified, modified, or added, it is still included in the scope of the patent application. [Brief Description of the Drawings] [Fig. 1] is a composition diagram of a main portion centering on a piping passage of a dry cleaning machine using a steaming device according to an embodiment of the present invention; [Fig. 2] The piping diagram of the distillation apparatus is a central composition diagram; [Fig. 3 (a), (b)] is a simplified external view of the distillation apparatus of the present embodiment; [Fig. 4] is a distillation of the past The piping path of the device is a central composition diagram. [Main component symbol] -16- 1356110
10 蒸 餾 鍋 11 加 熱 室 12 污 染 溶 劑 供 給 流 路 13 污 染 溶 劑 供 給 閥 14 蒸 汽 供 給 管 1 5 基 汽 供 給 閥 16 蒸 汽 排 出 管 17 溶 劑 氣 體 流 路 19 冷 凝 螺 旋 管 20 止 .回 閥 2 1 再 生 溶 劑 閥 22 噴 射 器 23 真 空 泵 25 冷 卻 螺 旋 管 26 再 生 溶 劑 循 環 流 路 27 緩 衝 罐 28 淨 化 溶 劑 流 出 流 路 29 配 管 部 44 蒸 餾 裝 置 45 冷 卻 機 27 1 第 1 分 隔 壁 272 第 2 分 隔 壁 2 73 隔 壁 274 再 生 溶 劑 的 流 入 端 275 再 生 溶 劑 的 流 出 lilt m10 Distillation tank 11 Heating chamber 12 Contaminant solvent supply flow path 13 Contaminated solvent supply valve 14 Steam supply pipe 1 5 Base steam supply valve 16 Steam discharge pipe 17 Solvent gas flow path 19 Condensing spiral pipe 20 Stop valve 2 Regeneration solvent valve 22 ejector 23 vacuum pump 25 cooling coil 26 regenerating solvent circulation flow path 27 buffer tank 28 purification solvent outflow path 29 piping unit 44 distillation unit 45 cooling unit 27 1 first partition wall 272 second partition wall 2 73 partition wall 274 regenerating solvent Inflow end 275 regeneration solvent outflow lilt m