JPS6085723A - Washer - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は泡洗浄を利用した食器洗い機、洗濯機等に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to dishwashers, washing machines, etc. that utilize foam cleaning.

従来例の構成とその問題点 一般に、泡洗浄を利用した洗浄機は、洗剤液に空気を送
入し洗浄泡（以下単に泡と呼ぶ）を発生せしめ、発生し
た泡を次々と洗浄槽に供給し、洗浄槽中に置かれた被洗
浄物と泡とを接触させ、洗剤の化学作用と、泡の破裂に
よって生じるキャビテーションの機械力によって洗浄す
るものであり、洗浄後の泡は外部に排出され捨てられる
。Conventional structure and its problems In general, cleaning machines that use foam cleaning generate cleaning foam (hereinafter simply referred to as foam) by blowing air into the detergent solution, and then supply the generated foam one after another to the cleaning tank. The object placed in the cleaning tank is brought into contact with the foam, and the cleaning is done by the chemical action of the detergent and the mechanical force of cavitation generated by the bursting of the foam. After cleaning, the foam is discharged to the outside. be thrown away.

また上記のように、泡を捨てることによる洗剤液使用量
が多いことから、洗浄後の泡を消泡せしめ、回収して洗
剤液の使用量を低減する方法も提案されている。Furthermore, as mentioned above, since a large amount of detergent liquid is used by discarding foam, a method has also been proposed in which the foam after washing is defoamed and recovered to reduce the amount of detergent liquid used.

しかし、洗浄後の泡を回収し再利用するということは、
汚れ成分を含有した洗剤液を再使用するということであ
り、洗浄能力や被洗浄物への汚れの再付着という面から
好ましくない。とくに、汚れ成分が多量に付着している
食器を洗浄する場合などは決して好ましいものではない
。However, collecting and reusing foam after cleaning
This means reusing a detergent solution containing dirt components, which is undesirable from the standpoint of cleaning performance and re-adhesion of dirt to the object to be cleaned. In particular, this is not preferable when washing dishes that have a large amount of soiled components attached to them.

発明の目的 本発明はこのような従来の問題を解消し、洗剤液の使用
量の低減と、洗浄後の洗剤液の汚れを少なくするととも
に、再付着・洗剤能力の低下をなくした泡洗浄利用の洗
浄機を提供するものである。Purpose of the Invention The present invention solves these conventional problems, reduces the amount of detergent solution used, reduces the amount of detergent solution stains after cleaning, and uses foam cleaning to eliminate re-adhesion and decrease in detergent ability. washing machine.

発明の構成 本発明の泡洗浄用洗浄機は、被洗浄物を洗浄する洗浄槽
と、洗浄槽に洗浄泡を供給する起泡装置と、洗浄後の洗
浄泡を洗浄槽外へ排出する排出管上、排出管の途中に設
けた流路切替装置と、流路切替装置から分岐されて洗浄
槽へ接続された回収管とから成り、洗浄開始後初期の洗
浄後の洗浄泡は洗浄槽外へ排出し、以後の洗浄後の洗浄
泡は洗浄槽へ回収するようにしたものである。Composition of the Invention The foam cleaning machine of the present invention includes a cleaning tank for cleaning objects to be cleaned, a foaming device for supplying cleaning foam to the cleaning tank, and a discharge pipe for discharging the cleaning foam after cleaning to the outside of the cleaning tank. The upper part consists of a flow path switching device installed in the middle of the discharge pipe, and a recovery pipe branched from the flow path switching device and connected to the cleaning tank. The cleaning foam is discharged and the cleaning foam after subsequent cleaning is collected into the cleaning tank.

実施例の説明 本発明の一実施例を第１図によシ説明する。１は洗浄槽
で、その底部に洗剤液２を起泡する起泡板３、送気管４
から成る起泡装置を有している〇尚起泡装置は洗浄槽１
と別体にあって洗浄槽１へ泡を供給するものであっても
よい。前記洗浄槽１の上部には洗浄を終え洗浄槽１内に
充満した泡Ｂを外部に排出する排出口５を有する排出管
６が設けられている０この排出管６にはその途中に流路
切替装置γがあシ、洗浄槽１の底部に通じる回収管８を
排出管６から分岐している。９は流路切替装置７の手前
の排出管６に設けられた消泡装置で、熱消泡、超音波消
泡、メカニカル消泡など洗剤液の回収に適した装置が用
いられる。１ｏは消泡時の空気の排出管、１１は洗剤液
２を排出するドレインの開閉弁、１２は被洗浄物、１３
は泡を洗浄槽１内に均一に分布させる制泡板である。DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. 1 is a cleaning tank, at the bottom of which there is a foaming plate 3 for foaming the detergent solution 2, and an air pipe 4.
The foaming device has a foaming device consisting of cleaning tank 1.
It may be provided separately from the cleaning tank 1 and supplies foam to the cleaning tank 1. At the top of the cleaning tank 1, there is provided a discharge pipe 6 having a discharge port 5 for discharging the bubbles B filled in the cleaning tank 1 after cleaning to the outside. A switching device γ branches a recovery pipe 8 leading to the bottom of the cleaning tank 1 from the discharge pipe 6. Reference numeral 9 denotes a defoaming device installed in the discharge pipe 6 before the flow path switching device 7, and a device suitable for recovering the detergent liquid, such as thermal defoaming, ultrasonic defoaming, or mechanical defoaming, is used. 1o is a discharge pipe for air during defoaming, 11 is a drain opening/closing valve for discharging detergent liquid 2, 12 is an object to be cleaned, 13
is a bubble control plate that uniformly distributes bubbles within the cleaning tank 1.

次に本実施例の動作について説明する。Next, the operation of this embodiment will be explained.

空気ポンプ（図示せず）から送気管４を通じて送入され
た空気Ａは発泡板３を通り洗剤液２中で泡を発生させる
。発生した洗剤液の泡Ｂは洗浄槽１内に充満し被洗浄物
１２に接゛触して被洗浄物の汚れが落とされる。落とさ
れた汚れは泡に含有され、汚れを含有した泡は新たに発
生する泡に押されて排出口５側に切替えられている流路
切替装置７を経て排出管６を通り消泡装置９に導びかれ
る。Air A is introduced from an air pump (not shown) through the air pipe 4 and passes through the foam board 3 to generate foam in the detergent liquid 2. The generated foam B of the detergent solution fills the cleaning tank 1 and comes into contact with the object 12 to be cleaned, thereby removing dirt from the object. The removed dirt is contained in foam, and the dirt-containing foam is pushed by newly generated foam and passes through the flow path switching device 7, which is switched to the discharge port 5 side, and passes through the discharge pipe 6 to the defoaming device 9. be guided by.

ここで泡Ｂは消泡されて液状となり排出口５から外部に
捨てられる０この間の汚れの落ち方は第２図に示すよう
に指数関数的であシ、したがって泡中の汚れ成分の含有
量は極めて多く、又、洗剤の洗浄力も劣化しており、再
使用には適さない。そして泡がこの様な状態にある期間
を洗浄初期とする。この洗浄初期の時間は、洗浄槽４中
に入れられた被洗浄物１２の量や汚れ具合、汚れの種類
などで若干具なるが、成る送気量のもとて第２図に示す
ように大略５〜１ｏ分であり、はとんどの汚れがこの時
間で落とされる。こ＼で、送気量を変えると泡の発生量
も変り、これにより上記の時間が変動することは当然で
あることを付言する０洗浄初期が過ぎると切替弁７を回
収管８側と切替え、消泡された洗剤液を回収管１ｏに流
し、洗浄槽１に回収して洗剤液として再使用することが
できる。Here, the foam B is defoamed, becomes liquid, and is discarded to the outside from the discharge port 5.The way the dirt falls off during this period is exponential as shown in Figure 2, and therefore the content of dirt components in the foam is are extremely common, and the cleaning power of the detergent has also deteriorated, making it unsuitable for reuse. The period during which the foam is in this state is defined as the initial stage of cleaning. The initial cleaning time varies depending on the amount of the object to be cleaned 12 placed in the cleaning tank 4, the degree of dirt, the type of dirt, etc., but depending on the amount of air supplied, as shown in Figure 2. It takes approximately 5 to 1 minute, and most of the dirt is removed in this time. It should be noted here that changing the air supply amount will also change the amount of bubbles generated, which naturally causes the above time to vary. After the initial cleaning period has passed, switch the switching valve 7 to the recovery pipe 8 side. The defoamed detergent liquid can be passed through the recovery pipe 1o, collected in the cleaning tank 1, and reused as a detergent liquid.

洗浄初期以後は汚れの落ちはきわめてゆっくりしており
、したがって泡中の汚れ成分の含有量は極めて低く、汚
れの再付着や洗剤の洗浄力低下はほとんどない。この様
にして、回収した洗浄液を加えて洗浄初期以後の洗浄を
続けて被洗浄物はきれいに洗浄される。尚、流路切替装
置７の切替えは、予め設定された洗浄初期の時間の時間
経過即ち、タイムスイッチで切替えても良いし、又、泡
中に含まれる汚れの度合を既に知られている検知手段（
例えば電気的、光学的に汚染度を検知する方法）で検知
して自動的に切替えても良い。After the initial stage of cleaning, the removal of dirt is extremely slow, so the content of dirt components in the foam is extremely low, and there is almost no re-deposition of dirt or a decrease in the cleaning power of the detergent. In this manner, the object to be cleaned is thoroughly cleaned by adding the recovered cleaning liquid and continuing cleaning after the initial cleaning stage. The flow path switching device 7 may be switched using a time switch, that is, the passage of a preset initial cleaning time, or may be switched using a time switch that detects the degree of dirt contained in the foam, which is already known. means(
For example, the degree of contamination may be detected electrically or optically and switched automatically.

この様に本発明によれば洗剤液使用量の低減をはかると
ともに、洗剤の洗浄力の低下、再付着の問題等もない泡
洗浄利用の洗浄機とすることができる。As described above, according to the present invention, it is possible to reduce the amount of detergent liquid used, and to provide a washing machine that utilizes foam cleaning without problems such as a decrease in the detergent power of the detergent or problems with re-adhesion.

なお泡洗浄を予浸として用いる場合にも本発明と同様な
構成にすることにより、予浸時の洗剤液の低減をはかる
ことができ、本洗浄時の時間短縮。Note that even when foam cleaning is used as pre-soaking, by adopting the same configuration as the present invention, it is possible to reduce the amount of detergent liquid used during pre-soaking, thereby shortening the time during main cleaning.

機械力の低下を可能とすることができる。It may be possible to reduce mechanical forces.

発明の効果 以上の様に本発明の洗浄機は、洗浄初期の洗浄後の泡は
外部に排出し、洗浄初期以後の洗浄後の泡は洗浄槽に回
収して再使用する様にしたので、洗浄時における洗剤液
の洗浄力を落とすことなく再使用でき、従って洗剤液使
用量を低減させることができることから、省資源、公害
面で有利であり、且つ、洗剤液の再使用による被洗浄物
への汚れの再付着を防止することができる等、その効果
と価値は大なるものがある。とくに汚れ成分の含有量が
極めて大きい食器洗い機には有用である。Effects of the Invention As described above, in the cleaning machine of the present invention, the foam after cleaning in the initial stage of cleaning is discharged to the outside, and the foam after cleaning after the initial stage of cleaning is collected into the cleaning tank and reused. Since the detergent solution can be reused without reducing its cleaning power during cleaning, and the amount of detergent solution used can therefore be reduced, it is advantageous in terms of resource saving and pollution. It has great effects and value, such as being able to prevent dirt from re-adhering to the surface. It is particularly useful for dishwashers that contain extremely large amounts of dirt components.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す洗浄機の正面断面図、
第２図は洗浄時間と泡中の汚れ量との関係を示す図であ
る。 １・・・・・・洗浄槽、３・・・・・・起泡板、６・・
・・・・排出管、７・・・・・・流路切替装置、８・・
・・・・回収管。FIG. 1 is a front sectional view of a washing machine showing an embodiment of the present invention;
FIG. 2 is a diagram showing the relationship between cleaning time and the amount of dirt in the foam. 1...Cleaning tank, 3...Bubbling board, 6...
...Discharge pipe, 7...Flow path switching device, 8...
...Recovery pipe.

Claims (3)

【特許請求の範囲】[Claims] （１）被洗浄物を洗浄する洗浄槽と、洗浄槽に洗浄泡を
供給する起泡装置と、洗浄後の洗浄泡を洗浄槽外へ排出
する排出管と、排出管の途中に設けた流路切替装置と、
流路切替装置から分岐されて洗浄槽へ接続される回収管
とから成り、洗浄開始後初期の洗浄後の洗浄泡は洗浄槽
外へ排出し、以後の洗浄後の洗浄泡は洗浄槽内へ回収す
る洗浄機。(1) A cleaning tank that cleans the objects to be cleaned, a foaming device that supplies cleaning foam to the cleaning tank, a discharge pipe that discharges the cleaning foam after cleaning to the outside of the cleaning tank, and a stream installed in the middle of the discharge pipe. a road switching device;
It consists of a recovery pipe that branches from the flow path switching device and connects to the cleaning tank, and after the start of cleaning, the cleaning foam after the initial cleaning is discharged outside the cleaning tank, and the cleaning foam after subsequent cleaning goes into the cleaning tank. Washing machine to collect. （２）　流路切替装置は洗浄初期時間が設定されたタイ
ムスイッチ、又は、洗浄泡の汚染度の検知により切替え
る特許請求の範囲第１項記載の洗浄機。(2) The cleaning machine according to claim 1, wherein the flow path switching device is switched by a time switch in which an initial cleaning time is set, or by detecting the degree of contamination of cleaning foam. （３）排出管に設けた流路切替装置の手前の排出管に消
泡装置を設けた特許請求の範囲第１項記載の洗浄機。(3) The washing machine according to claim 1, wherein a defoaming device is provided in the discharge pipe before the flow path switching device provided in the discharge pipe.