JP4528374B2 - Steam cleaning equipment - Google Patents

Steam cleaning equipment Download PDF

Info

Publication number
JP4528374B2
JP4528374B2 JP22799998A JP22799998A JP4528374B2 JP 4528374 B2 JP4528374 B2 JP 4528374B2 JP 22799998 A JP22799998 A JP 22799998A JP 22799998 A JP22799998 A JP 22799998A JP 4528374 B2 JP4528374 B2 JP 4528374B2
Authority
JP
Japan
Prior art keywords
tank
solvent
vacuum
steam cleaning
workpiece
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.)
Expired - Lifetime
Application number
JP22799998A
Other languages
Japanese (ja)
Other versions
JP2000051802A (en
Inventor
正 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHIN-OHTSUKA CO., LTD.
Original Assignee
SHIN-OHTSUKA CO., LTD.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHIN-OHTSUKA CO., LTD. filed Critical SHIN-OHTSUKA CO., LTD.
Priority to JP22799998A priority Critical patent/JP4528374B2/en
Publication of JP2000051802A publication Critical patent/JP2000051802A/en
Application granted granted Critical
Publication of JP4528374B2 publication Critical patent/JP4528374B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Cleaning By Liquid Or Steam (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は、例えば、HC(ハイドロカーボン、炭化水素系溶剤の一つ)などの蒸気によりワークを減圧乃至真空状態下において蒸気洗浄および乾燥処理するような蒸気洗浄装置に関する。
【0002】
【従来の技術】
従来、蒸気洗浄装置としては例えば実開平1−179784号公報に記載の装置がある。すなわち、洗浄槽内の溶剤をヒータにより加熱気化させて、この気化蒸気により被洗浄物(ワーク)を脱脂洗浄する蒸気洗浄器において、上述の洗浄槽内の雰囲気圧力を下げる減圧手段を設けた蒸気洗浄装置である。
【0003】
この従来装置によれば、上述の減圧手段の駆動により洗浄槽内部の圧力を下げると、溶剤の沸点が低下するので、溶剤を低温条件下にて気化させることができ、これにより上述のヒータによる消費電力の低減(消費エネルギの低減)を達成することができる利点がある反面、ワークの気化溶剤による蒸気洗浄の後に、ワークを乾燥させる場合、洗浄槽内の溶剤貯溜部に存在する溶剤の一部が気化して、ワークの乾燥が阻害される問題点があった。
【0004】
【発明が解決しようとする課題】
この発明は、蒸気洗浄後に減圧タンク内の溶剤を該減圧タンク外へ導出し、ワークの乾燥後に減圧タンク外の溶剤を減圧タンクの溶剤貯溜部に還流させることで、ワークの乾燥時においてタンク内の溶剤が気化してワークの乾燥が妨げられることがなく、良好なワーク乾燥を実行することができ、また、上述の減圧タンクの溶剤蒸気層に加熱コイルを配置して、この加熱コイル内を流通する熱媒(例えば加熱オイル)により減圧タンク内部を加熱することで、ワークの乾燥効率をさらに向上させることができる蒸気洗浄装置の提供を目的とする。
【0005】
【課題を解決するための手段】
この発明による蒸気洗浄装置は、ワークを減圧乃至真空状態下にて蒸気洗浄する減圧タンクを備えた蒸気洗浄装置であって、蒸気洗浄後に上記減圧タンク内の溶剤を該減圧タンク外へ導出する導出手段と、ワークの乾燥後に減圧タンク外の溶剤を減圧タンクの溶剤貯溜部に還流させる還流手段とを備えると共に、上記減圧タンクとエゼクタの負圧形成部との間を真空状態保持経路で接続し、上記減圧タンク内の溶剤蒸気層には、内部に熱媒を流通させる加熱コイル配置され、該減圧タンク内の上記溶剤貯溜部には上記加熱コイルに分岐接続された別の熱媒流通用の加熱コイル配置され、これら両コイルの加熱源を同一に設定すると共に、上記両コイルと分岐部との間にはそれぞれバルブを介設したものである。
【0006】
【発明の作用及び効果】
この発明によれば、上述のワークは減圧乃至真空状態下において減圧タンク内部で蒸気洗浄されるが、上述の導出手段はワークの蒸気洗浄後つまりワークの乾燥に先立って減圧タンク内の溶剤を減圧タンク外へ導出するので、ワークの乾燥時において減圧タンク内の溶剤が気化してワークの乾燥が妨げられることがなく、良好なワーク乾燥を実行することができる効果がある。
【0007】
また、上述の還流手段がワークの乾燥後において減圧タンク外の溶剤を該減圧タンク内の溶剤貯溜部に還流させるので、次のワークの蒸気洗浄に備えることができる効果がある。
【0008】
さらに、上述の減圧タンク内の溶剤蒸気層に配置された加熱コイルの内部に熱媒を流通させると、この熱媒により減圧タンク内部を加熱することができて、ワークの乾燥効率をさらに向上させることができる効果がある。
【0009】
【実施例】
この発明の一実施例を以下図面に基づいて詳述する。
図面は蒸気洗浄装置を示し、図1において、この蒸気洗浄装置は、ワークを減圧乃至真空状態下にて蒸気洗浄する減圧タンク1と、冷却コイル2が内設されてインレットポート3とアウトレットポート4との間を仕切板5で区画した冷却タンク6と、蒸気洗浄後に減圧タンク1内の溶剤A(例えばHC)を一時貯溜するサブタンク7(貯溜手段)と、2つのプールタンク8,9と、減圧手段としての真空ポンプ10と、この真空ポンプ10に接続され水(HO)を用いて溶剤を浄化する浄化タンク11と、一方のプールタンク8と他方のプールタンク9との間に接続された真空蒸留機12(蒸溜手段)とを備えている。
【0010】
上述の減圧タンク1の溶剤蒸気層(図1において図示の便宜上、多点を施して示す部分)には加熱管(加熱手段)としての加熱コイル13を配置し、ワークの乾燥時にのみバルブ14を開いて高温に加熱された加熱オイル(熱媒)を該加熱コイル13内に流通させて、タンク1内部乃至ワークを加熱乾燥処理すべく構成している。
【0011】
上述の加熱コイル13に分岐接続された別の加熱コイル15(溶剤加熱手段)を設け、この加熱コイル15を減圧タンク1における溶剤貯溜部1aの液中に配置して、バルブ16の開時に溶剤Aを加熱して、溶剤蒸気Bを形成するように構成している。
【0012】
上述の減圧タンク1は開閉可能な蓋部材1bを有すると共に、タンク側部に合計5つのポート17,18,19,20,21を備え、ポート17にはフィルタ付きマフラ22、バルブ23、真空度計24を有するライン25を接続している。
【0013】
またポート18とエゼクタ26の負圧形成部26aとの間を、バルブ27が介設されたライン28(真空状態保持経路)で接続している。
さらにポート19と冷却タンク6のインレットポート3との間を、バルブ29が介設されたライン30(真空状態形成経路)で接続している。
【0014】
一方、上述のポート20と送液ポンプ31(送液手段)の吐出側との間を、バルブ32,33が介設されたライン34(還流手段)で接続し、ワーク乾燥後にタンク1外の溶剤A(この実施例では蒸溜溶剤)を上述の減圧タンク1の溶剤貯溜部1aにおける仕切部材35の下部に還流すべく構成している。
【0015】
しかも、上述のポート21とサブタンク7のポート7aとの間を、バルブ36が介設されたライン37(導出手段)で接続し、ワークの蒸気洗浄後に減圧タンク1内の溶剤Aをタンク1外、つまり該サブタンク7内へ導出すべく構成している。
【0016】
このサブタンク7は上述のポート7aを含んで合計4つのポート7a,7b,7c,7dを有し、ポート7bには、フィルタ付きマフラ38、バルブ39、真空度計40を有するライン41を接続している。
またポート7cと真空ポンプ10との間をバルブ42が介設されたライン43で接続している。
【0017】
さらに上述のポート7dとプールタンク8のポート8aとの間を、バルブ44が介設されたライン45で接続すると共に、上述の各ライン43,45間を連通ライン46で接続して、この連通ライン46にバルブ47を介設している。
しかも、上述のサブタンク7には減圧タンク1から引込んだ加熱溶剤Aを冷却するために、冷却コイル48を配設している。
【0018】
ところで、上述の冷却タンク6のアウトレットポート4と真空ポンプ10との間を、バルブ49が介設されたライン50で接続すると共に、この冷却タンク6のロアポート51とプールタンク9のポート9aとの間を、バルブ52が介設されたライン53で接続している。
【0019】
上述のプールタンク9はこのポート9aを含んで合計5つのポート9a,9b,9c,9d,9eを有し、上方部に位置するポート9bと真空ポンプ10との間を、バルブ54が介設されたライン55で接続している。
【0020】
またポート9c,9d間には、バルブ56、送液ポンプ31、バルブ32,57、エゼクタ26の主流部から成る循環ライン58を接続している。ここで、上述のエゼクタ26はその主流部を流通する駆動流によって負圧形成部26aに負圧を形成する負圧形成手段である。
しかも上述のプールタンク9には蒸溜溶剤Aを加熱するための加熱コイル59が配設されている。
【0021】
一方、上述のプールタンク8の底部に形成されたポート8bを、ライン60と、真空蒸溜機12と、バルブ61が介設されたライン62とを介して、別のプールタンク9のポート9eに接続している。
【0022】
また上述のプールタンク8には冷却コイル63を配設している。ここで、冷却手段としての上述の各冷却コイル2,48,63の冷却源は同一に設定され、また加熱手段としての上述の加熱コイル13,15,59の加熱源も同一に設定されている。
【0023】
図示実施例は上記の如く構成するものにして、以下作用を説明する。
まず、真空ポンプ10を駆動すると共に、バルブ29,49を開弁して各要素19,30,29,3,4,50,49を介して減圧タンク1内を真空状態にすると共に、バルブ16を開弁して加熱コイル15に加熱オイル(熱媒)を流通させ、減圧タンク1内の溶剤Aを真空状態下にて加熱して、溶剤蒸気Bを発生させる。
【0024】
このようにして、溶剤蒸気Bを発生させた後に、真空ポンプ10の駆動を停止すると共に、各バルブ29,49を閉弁する。一方、バルブ27を開弁してエゼクタ26の負圧形成部26aに形成される負圧を利用して、ライン28を介して減圧タンク1内の真空状態を保持し、この状態下において上述の溶剤蒸気Bによりワークを蒸気洗浄する。
【0025】
ワークの蒸気洗浄終了前において、真空ポンプ10を駆動し、またバルブ42を開弁して、ライン43を介してサブタンク7内を予め真空状態に成す。
而して、ワークの蒸気洗浄終了後においては、ワークの乾燥処理に先立って、バルブ23,36を開弁し、ライン25に作用する大気圧とライン37に作用する負圧との差圧を利用して、減圧タンク1内の加熱された溶剤Aを、該タンク1外へ導出して、この溶剤Aをサブタンク7内に一時貯溜する。
【0026】
減圧タンク1内の溶剤Aをサブタンク7内に吸引完了した時点で、上述の各バルブ23,36を閉弁する。
次に、真空ポンプ10を駆動すると共に、バルブ49を開弁して冷却タンク6内を予め真空状態に成し、その後、バルブ29を開いて減圧タンク1内に残存する溶剤蒸気Bを、ライン30を介して冷却タンク6に差圧吸引する。この場合、ライン30からのインレットポート3を介して冷却タンク6に吸引された溶剤蒸気Bは冷却コイル2により凝縮されると共に、仕切板5による区画構成により、溶剤蒸気Bがアウトレットポート4からライン50および真空ポンプ10側に直接吸込まれるのを防止することができる。
【0027】
このような条件下において減圧タンク1内のワークを乾燥処理する。つまり、バルブ14を開いて加熱コイル13に加熱オイルを流通させ、この熱媒により減圧タンク1内およびワークを加熱して、該ワークを乾燥させる。
【0028】
ところで、プールタンク9には真空蒸溜機12にて蒸溜された溶剤Aを貯溜し、送液ポンプ31の駆動によりエゼクタ26を含む循環ライン58を循環する蒸溜溶剤Aの流動で、エゼクタ26の負圧形成部26aに負圧が形成され、ライン28、バルブ27、ポート18を介して上述の減圧タンク1内を真空状態に維持する。
【0029】
上述のワークに対する蒸気洗浄および乾燥の一連の処理終了後において、バルブ32,33を開弁し、各要素32,34,33,20を介して蒸溜溶剤Aを減圧タンク1の溶剤貯溜部1aに供給して、次のワークの蒸気洗浄および乾燥処理に備える。
【0030】
なお、上述のサブタンク7に一時貯溜された溶剤Aは、バルブ44の開時に、ライン45を介してプールタンク8に供給され、このプールタンク8内において冷却コイル63で冷却された後に、各要素8b,60を介して真空蒸溜機12に至り、ここで、蒸溜再生された溶剤Aは各要素62,61,9eを介して別のプールタンク8に送液される。
【0031】
このように上記構成の蒸気洗浄装置によれば、上述のワークは減圧乃至真空状態下において減圧タンク1内部で蒸気洗浄されるので、上述の導出手段(ライン37参照)はワークの蒸気洗浄後つまりワークの乾燥に先立って減圧タンク1内の溶剤Aを減圧タンク1外へ導出するので、ワークの乾燥時において減圧タンク1内の溶剤Aが気化してワークの乾燥が妨げられることがなく、良好なワーク乾燥を実行することができる効果がある。
【0032】
また、上述の還流手段(ライン34参照)がワークの乾燥後において減圧タンク1外の溶剤A(この実施例では蒸溜された溶剤A)を減圧タンク1の溶剤貯溜部1aに還流させるので、次のワークの蒸気洗浄に備えることができる効果がある。
【0033】
さらに、上述の減圧タンク1の少なくとも溶剤蒸気Bの層に配置された加熱管(加熱コイル13参照)の内部に熱媒(加熱オイル参照)を流通させると、この熱媒により減圧タンク1内部およびワークを加熱することができて、ワークの乾燥効率をさらに向上させることができる効果がある。
【0034】
なお、上記実施例で示したように、ワークの蒸気洗浄後(乾燥前)に減圧タンク1から槽外に導出した溶剤Aを、蒸溜再生してワークの乾燥後に槽内(減圧タンク1内)へ還流すべく構成すると、常に最良の蒸気洗浄効果を確保することができる。
【0035】
この発明の構成と、上述の実施例との対応において、
この発明の溶剤は、実施例のHC(ハイドロカーボン)に対応し、
以下同様に、
導出手段は、ライン(経路)37に対応し、
還流手段は、ライン(経路)34に対応し、
この発明は、上述の実施例の構成のみに限定されるものではない。
【図面の簡単な説明】
【図1】 本発明の蒸気洗浄装置を示す系統図。
【符号の説明】
1…減圧タンク
1a…溶剤貯溜部
13,15…加熱コイル
14,16…バルブ
34…ライン(還流手段)
37…ライン(導出手段)
A…溶剤
B…溶剤蒸気
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a steam cleaning apparatus that performs steam cleaning and drying processing of a workpiece with a steam such as HC (hydrocarbon or one of hydrocarbon solvents) under reduced pressure or vacuum.
[0002]
[Prior art]
Conventionally, as a steam cleaning apparatus, for example, there is an apparatus described in Japanese Utility Model Laid-Open No. 1-179784. That is, in a steam cleaning apparatus that heats and evaporates the solvent in the cleaning tank with a heater and degreases and cleans the object to be cleaned (workpiece) with the vaporized steam, the steam provided with the pressure reducing means for reducing the atmospheric pressure in the cleaning tank. It is a cleaning device.
[0003]
According to this conventional apparatus, when the pressure inside the washing tank is lowered by driving the pressure reducing means, the boiling point of the solvent is lowered, so that the solvent can be vaporized under a low temperature condition. While there is an advantage that reduction of power consumption (reduction of energy consumption) can be achieved, when the work is dried after the steam cleaning with the vaporized solvent of the work, one of the solvents present in the solvent reservoir in the cleaning tank. There was a problem that the part was vaporized and the drying of the workpiece was hindered.
[0004]
[Problems to be solved by the invention]
According to the present invention, after the steam cleaning, the solvent in the decompression tank is led out of the decompression tank, and after the work is dried, the solvent outside the decompression tank is returned to the solvent storage part of the decompression tank. The solvent is not vaporized and the drying of the workpiece is not hindered, and the workpiece can be dried satisfactorily. In addition, a heating coil is arranged in the solvent vapor layer of the above-described vacuum tank, and the inside of the heating coil is An object of the present invention is to provide a steam cleaning device that can further improve the drying efficiency of a workpiece by heating the inside of the vacuum tank with a circulating heat medium (for example, heated oil).
[0005]
[Means for Solving the Problems]
The steam cleaning apparatus according to the present invention is a steam cleaning apparatus having a decompression tank for subjecting a workpiece to steam cleaning under reduced pressure or in a vacuum state, and deriving the solvent in the decompression tank out of the decompression tank after steam cleaning. And a reflux means for refluxing the solvent outside the decompression tank to the solvent storage part of the decompression tank after the workpiece is dried , and connecting the decompression tank and the negative pressure forming part of the ejector by a vacuum state holding path. , the solvent vapor layer of the vacuum tank, is arranged a heating coil for circulating the heat medium therein, the above-mentioned solvent reservoir of the vacuum tank, another heat medium circulation which is branched and connected to the heating coil is disposed heating coil use, it sets the heat source of both coils in the same, between the two coils and the branch portion in which is interposed a valve, respectively.
[0006]
[Action and effect of the invention]
According to the present invention, the above-described workpiece is steam-cleaned inside the decompression tank under reduced pressure or vacuum, but the above-mentioned deriving means decompresses the solvent in the decompression tank after the workpiece is steam-washed, that is, before the workpiece is dried. Since it is led out of the tank, the solvent in the decompression tank is not vaporized during the drying of the workpiece, and the drying of the workpiece is not hindered.
[0007]
In addition, since the above-mentioned refluxing means causes the solvent outside the decompression tank to reflux to the solvent storage section in the decompression tank after the workpiece is dried, there is an effect that it can be prepared for steam cleaning of the next workpiece.
[0008]
Furthermore, when a heating medium is circulated inside the heating coil arranged in the solvent vapor layer in the above-described decompression tank, the inside of the decompression tank can be heated by this heating medium, and the drying efficiency of the workpiece is further improved. There is an effect that can.
[0009]
【Example】
An embodiment of the present invention will be described in detail with reference to the drawings.
The drawing shows a steam cleaning apparatus. In FIG. 1, this steam cleaning apparatus is equipped with a decompression tank 1 for steam cleaning a work under reduced pressure or vacuum, and a cooling coil 2 and an inlet port 3 and an outlet port 4. A cooling tank 6 partitioned by a partition plate 5, a sub tank 7 (storage means) for temporarily storing the solvent A (for example, HC) in the decompression tank 1 after steam cleaning, two pool tanks 8 and 9, Connected between a vacuum pump 10 as a pressure reducing means, a purification tank 11 connected to the vacuum pump 10 to purify the solvent using water (H 2 O), and one pool tank 8 and the other pool tank 9 And a vacuum distillation machine 12 (distilling means).
[0010]
A heating coil 13 serving as a heating pipe (heating means) is disposed in the solvent vapor layer of the above-described decompression tank 1 (the portion shown with multiple points for convenience of illustration in FIG. 1), and the valve 14 is provided only when the workpiece is dried. Heating oil (heating medium) that is opened and heated to a high temperature is circulated in the heating coil 13 to heat and dry the inside of the tank 1 or the workpiece.
[0011]
Another heating coil 15 (solvent heating means) branched and connected to the heating coil 13 described above is provided, and this heating coil 15 is arranged in the liquid in the solvent reservoir 1a in the vacuum tank 1 so that the solvent is removed when the valve 16 is opened. A is heated to form solvent vapor B.
[0012]
The above-described decompression tank 1 has a lid member 1b that can be opened and closed, and is provided with a total of five ports 17, 18, 19, 20, and 21 on the side of the tank. The port 17 has a muffler 22 with a filter, a valve 23, and a degree of vacuum. A line 25 having a total of 24 is connected.
[0013]
Further, the port 18 and the negative pressure forming portion 26a of the ejector 26 are connected by a line 28 (vacuum state holding path) in which a valve 27 is interposed.
Further, the port 19 and the inlet port 3 of the cooling tank 6 are connected by a line 30 (vacuum state forming path) in which a valve 29 is interposed.
[0014]
On the other hand, the port 20 and the discharge side of the liquid feed pump 31 (liquid feed means) are connected by a line 34 (reflux means) provided with valves 32 and 33. The solvent A (distilled solvent in this embodiment) is configured to be returned to the lower part of the partition member 35 in the solvent storage portion 1a of the above-described decompression tank 1.
[0015]
In addition, the port 21 and the port 7a of the sub tank 7 are connected by a line 37 (leading means) provided with a valve 36, and the solvent A in the decompression tank 1 is removed from the tank 1 after the workpiece is steam cleaned. That is, it is configured to lead out into the sub tank 7.
[0016]
The sub-tank 7 includes a total of four ports 7a, 7b, 7c, and 7d including the above-described port 7a. A line 41 having a filter-equipped muffler 38, a valve 39, and a vacuum gauge 40 is connected to the port 7b. ing.
The port 7c and the vacuum pump 10 are connected by a line 43 provided with a valve 42.
[0017]
Further, the above-described port 7d and the port 8a of the pool tank 8 are connected by a line 45 provided with a valve 44, and the above-mentioned lines 43 and 45 are connected by a communication line 46. A valve 47 is interposed in the line 46.
In addition, a cooling coil 48 is disposed in the sub-tank 7 in order to cool the heating solvent A drawn from the decompression tank 1.
[0018]
By the way, the outlet port 4 of the cooling tank 6 and the vacuum pump 10 are connected by a line 50 provided with a valve 49, and the lower port 51 of the cooling tank 6 and the port 9a of the pool tank 9 are connected. They are connected by a line 53 having a valve 52 interposed therebetween.
[0019]
The pool tank 9 described above includes a total of five ports 9a, 9b, 9c, 9d, and 9e including the port 9a, and a valve 54 is interposed between the port 9b located above and the vacuum pump 10. Are connected by a line 55.
[0020]
Between the ports 9c and 9d, a circulation line 58 including a main flow portion of the valve 56, the liquid feed pump 31, the valves 32 and 57, and the ejector 26 is connected. Here, the above-described ejector 26 is a negative pressure forming means for forming a negative pressure in the negative pressure forming portion 26a by a driving flow that flows through the main flow portion.
In addition, the pool tank 9 is provided with a heating coil 59 for heating the distilled solvent A.
[0021]
On the other hand, the port 8b formed at the bottom of the pool tank 8 is connected to the port 9e of another pool tank 9 via the line 60, the vacuum distiller 12, and the line 62 provided with the valve 61. Connected.
[0022]
The pool tank 8 is provided with a cooling coil 63. Here, the cooling sources of the above-described cooling coils 2, 48, 63 as the cooling means are set to be the same, and the heating sources of the above-described heating coils 13, 15, 59 as the heating means are also set to be the same. .
[0023]
The illustrated embodiment is configured as described above, and the operation will be described below.
First, the vacuum pump 10 is driven, the valves 29 and 49 are opened, and the vacuum tank 1 is evacuated through the elements 19, 30, 29, 3, 4, 50 and 49, and the valve 16 Is opened, heating oil (heating medium) is circulated through the heating coil 15, and the solvent A in the vacuum tank 1 is heated under vacuum to generate solvent vapor B.
[0024]
After the solvent vapor B is generated in this way, the driving of the vacuum pump 10 is stopped and the valves 29 and 49 are closed. On the other hand, the vacuum state in the decompression tank 1 is maintained through the line 28 using the negative pressure formed in the negative pressure forming portion 26a of the ejector 26 by opening the valve 27, and in this state, the above-described vacuum state is maintained. The workpiece is steam cleaned with solvent vapor B.
[0025]
Before completion of the steam cleaning of the workpiece, the vacuum pump 10 is driven, the valve 42 is opened, and the inside of the sub-tank 7 is made into a vacuum state in advance via the line 43.
Thus, after completion of the steam cleaning of the work, the valves 23 and 36 are opened prior to the work drying process, and the pressure difference between the atmospheric pressure acting on the line 25 and the negative pressure acting on the line 37 is increased. Utilizing this, the heated solvent A in the decompression tank 1 is led out of the tank 1, and the solvent A is temporarily stored in the sub tank 7.
[0026]
When the solvent A in the decompression tank 1 is completely sucked into the sub tank 7, the above-described valves 23 and 36 are closed.
Next, the vacuum pump 10 is driven and the valve 49 is opened so that the inside of the cooling tank 6 is previously evacuated. Thereafter, the valve 29 is opened and the solvent vapor B remaining in the decompression tank 1 is supplied to the line. The differential pressure is sucked into the cooling tank 6 through 30. In this case, the solvent vapor B sucked into the cooling tank 6 via the inlet port 3 from the line 30 is condensed by the cooling coil 2, and the solvent vapor B is lined from the outlet port 4 due to the partition configuration by the partition plate 5. 50 and the vacuum pump 10 can be prevented from being sucked directly.
[0027]
Under such conditions, the work in the vacuum tank 1 is dried. That is, the valve 14 is opened to allow the heating oil to flow through the heating coil 13, and the heating tank 13 and the workpiece are heated by the heating medium to dry the workpiece.
[0028]
By the way, the solvent A distilled in the vacuum distiller 12 is stored in the pool tank 9, and the liquid of the distillation solvent A circulating through the circulation line 58 including the ejector 26 is driven by the liquid feed pump 31. A negative pressure is formed in the pressure forming unit 26 a, and the inside of the above-described decompression tank 1 is maintained in a vacuum state via the line 28, the valve 27, and the port 18.
[0029]
After a series of processes of steam cleaning and drying for the workpiece described above, the valves 32 and 33 are opened, and the distilled solvent A is supplied to the solvent reservoir 1a of the vacuum tank 1 through the elements 32, 34, 33 and 20. To prepare for the next workpiece steam cleaning and drying treatment.
[0030]
The solvent A temporarily stored in the sub-tank 7 is supplied to the pool tank 8 through the line 45 when the valve 44 is opened, and is cooled by the cooling coil 63 in the pool tank 8 before each element. 8b and 60 reach the vacuum distiller 12, where the solvent A that has been regenerated by distillation is fed to another pool tank 8 via the elements 62, 61, and 9e.
[0031]
As described above, according to the steam cleaning apparatus having the above-described configuration, the above-described workpiece is steam-cleaned inside the decompression tank 1 under a reduced pressure or a vacuum state. Since the solvent A in the decompression tank 1 is led out of the decompression tank 1 prior to the drying of the workpiece, the solvent A in the decompression tank 1 is not vaporized during the drying of the workpiece and the drying of the workpiece is not hindered. There is an effect that can dry the work.
[0032]
Further, since the above-described reflux means (see line 34) returns the solvent A (distilled solvent A in this embodiment) outside the decompression tank 1 to the solvent storage section 1a of the decompression tank 1 after the work is dried. There is an effect that can be prepared for the steam cleaning of the workpiece.
[0033]
Furthermore, when a heating medium (see heating oil) is circulated through the heating pipe (see heating coil 13) disposed in at least the solvent vapor B layer of the above-described decompression tank 1, the heating medium and the inside of the decompression tank 1 and There is an effect that the work can be heated, and the drying efficiency of the work can be further improved.
[0034]
As shown in the above embodiment, the solvent A led out of the tank from the decompression tank 1 after steam cleaning of the work (before drying) is distilled and regenerated in the tank (in the decompression tank 1) after drying the work. If it is configured to recirculate, it is always possible to ensure the best steam cleaning effect.
[0035]
In the correspondence between the configuration of the present invention and the above-described embodiment,
The solvent of this invention corresponds to the HC (hydrocarbon) of the example,
Similarly,
The deriving means corresponds to the line (path) 37,
The reflux means corresponds to the line (path) 34,
The present invention is not limited to the configuration of the above-described embodiment.
[Brief description of the drawings]
FIG. 1 is a system diagram showing a steam cleaning apparatus of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Depressurization tank 1a ... Solvent storage part 13, 15 ... Heating coil 14, 16 ... Valve 34 ... Line (reflux means)
37 ... Line (derivation means)
A ... Solvent B ... Solvent vapor

Claims (1)

ワークを減圧乃至真空状態下にて蒸気洗浄する減圧タンクを備えた蒸気洗浄装置であって、
蒸気洗浄後に上記減圧タンク内の溶剤を該減圧タンク外へ導出する導出手段と、
ワークの乾燥後に減圧タンク外の溶剤を該減圧タンクの溶剤貯溜部に還流させる還流手段とを備えると共に、
上記減圧タンクとエゼクタの負圧形成部との間を真空状態保持経路で接続し、
上記減圧タンク内の溶剤蒸気層には、内部に熱媒を流通させる加熱コイル配置され
該減圧タンク内の上記溶剤貯溜部には上記加熱コイルに分岐接続された別の熱媒流通用の加熱コイル配置され
これら両コイルの加熱源を同一に設定すると共に、
上記両コイルと分岐部との間にはそれぞれバルブを介設した
蒸気洗浄装置。
A steam cleaning apparatus including a decompression tank for steam cleaning a workpiece in a vacuum or vacuum state,
Deriving means for deriving the solvent in the decompression tank after the steam cleaning to the outside of the decompression tank;
A reflux means for refluxing the solvent outside the vacuum tank to the solvent storage part of the vacuum tank after the work is dried ;
The vacuum tank and the negative pressure forming part of the ejector are connected by a vacuum state holding path,
The solvent vapor layer of the vacuum tank, the heating coil for circulating the heat medium in the interior is disposed,
The aforementioned solvent reservoir of the vacuum tank, a heating coil for another heat medium circulation which is branched and connected to the heating coil is arranged,
While setting the heating source of these two coils to the same,
A steam cleaning apparatus in which a valve is interposed between each of the coils and the branch portion.
JP22799998A 1998-08-12 1998-08-12 Steam cleaning equipment Expired - Lifetime JP4528374B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22799998A JP4528374B2 (en) 1998-08-12 1998-08-12 Steam cleaning equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22799998A JP4528374B2 (en) 1998-08-12 1998-08-12 Steam cleaning equipment

Publications (2)

Publication Number Publication Date
JP2000051802A JP2000051802A (en) 2000-02-22
JP4528374B2 true JP4528374B2 (en) 2010-08-18

Family

ID=16869602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22799998A Expired - Lifetime JP4528374B2 (en) 1998-08-12 1998-08-12 Steam cleaning equipment

Country Status (1)

Country Link
JP (1) JP4528374B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128074B (en) * 2011-11-25 2016-06-22 株式会社Ihi Vacuum cleaner and vacuum cleaned method
JP5945349B2 (en) * 2015-04-22 2016-07-05 株式会社Ihi Vacuum cleaning device
JP6067823B1 (en) * 2015-11-19 2017-01-25 高砂工業株式会社 Vacuum cleaning apparatus and vacuum cleaning method
JP2018004221A (en) * 2016-07-07 2018-01-11 株式会社Ihi Condenser and cleaning device

Also Published As

Publication number Publication date
JP2000051802A (en) 2000-02-22

Similar Documents

Publication Publication Date Title
US5469876A (en) Cleaning method and system
US5538025A (en) Solvent cleaning system
US6004403A (en) Solvent cleaning system
TWI356110B (en) Distillation device for dry cleaner
JP4528374B2 (en) Steam cleaning equipment
KR100617984B1 (en) Vacuum washing and drying apparatus
KR100530019B1 (en) Elevator type cleaning machine mounted with solvent reproducing system
CN116013570B (en) Radioactive waste liquid treatment method and system
JP3634718B2 (en) Cleaning device
JP3804492B2 (en) Operation method of steam sterilizer
US4690158A (en) Washing apparatus
CN209668987U (en) A kind of sewage treatment equipment
JP5129911B2 (en) Moisture removal device
JP3640033B2 (en) Steam sterilizer
CN208230364U (en) Single-station hydrocarbon cleaning machine
KR20170065198A (en) Steam type Washing and Drying Apparatus for Solid Matter
JP2584187B2 (en) Cleaning equipment
JP2537304Y2 (en) Carbon treatment equipment in dry cleaning machines
JPH0326383A (en) Cleaning device using organic solvent
CN216798727U (en) Distillation heat energy recovery device
JPH1157637A (en) Cleaning device
CN218740221U (en) Evaporation device of hydrocarbon cleaning machine
CN211488419U (en) Drying device is used in screen protection film production
JP2024076247A (en) A method for washing and drying workpieces using a one-bath closed vacuum washer/dryer
JP2024087265A (en) Method for recovering solvent from cleaning machine, solvent recovery device from cleaning machine, and cleaning machine

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050803

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080415

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080612

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20080805

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20081003

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20081016

A912 Re-examination (zenchi) completed and case transferred to appeal board

Free format text: JAPANESE INTERMEDIATE CODE: A912

Effective date: 20081114

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100414

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100607

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130611

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term