JPH0889914A - Device for increasing and decreasing quantity of dissolved air in washing liquid in washing tank - Google Patents
Device for increasing and decreasing quantity of dissolved air in washing liquid in washing tankInfo
- Publication number
- JPH0889914A JPH0889914A JP25472694A JP25472694A JPH0889914A JP H0889914 A JPH0889914 A JP H0889914A JP 25472694 A JP25472694 A JP 25472694A JP 25472694 A JP25472694 A JP 25472694A JP H0889914 A JPH0889914 A JP H0889914A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- cleaning
- cleaning liquid
- washing
- dissolved air
- 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.)
- Pending
Links
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、洗浄槽内の洗浄液中の
溶存空気量の増減装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for increasing / decreasing the amount of dissolved air in a cleaning liquid in a cleaning tank.
【０００２】[0002]
【従来の技術】工業用の被洗浄物は、超音波振動子を入
れた洗浄液を満たした水槽に浸けられ、超音波の振動に
より洗浄される。一方、洗浄液中の溶存空気量と超音波
強度については、溶存空気量の減少と共に超音波強度が
増すことが知られており、洗浄液中の溶存空気量を減ら
し、洗浄効果を向上させる対策が行われていた。2. Description of the Related Art An article to be cleaned for industrial use is immersed in a water tank filled with a cleaning solution containing an ultrasonic vibrator and cleaned by ultrasonic vibration. On the other hand, regarding the amount of dissolved air in the cleaning liquid and the ultrasonic intensity, it is known that the ultrasonic intensity increases as the amount of dissolved air decreases, and measures to reduce the amount of dissolved air in the cleaning liquid and improve the cleaning effect are taken. It was being appreciated.
【０００３】また、洗浄液の濃度、洗浄液温度、洗浄槽
の構造、超音波の運転周波数強度、液深等によって洗浄
液、洗浄槽、被洗浄物等が共振状態となって、非常に大
きな騒音が発生することがあった。この共振現象が発生
したとき、超音波周波数を例えば２８ｋＨｚの発振周波
数を４０ｋＨｚ等に変更したり、洗浄槽外面、内面に吸
音材を張り付ける等の対策を講じていた。Further, depending on the concentration of the cleaning liquid, the temperature of the cleaning liquid, the structure of the cleaning bath, the operating frequency intensity of ultrasonic waves, the liquid depth, etc., the cleaning liquid, the cleaning bath, the object to be cleaned, etc. are in a resonance state and a very loud noise is generated. There was something to do. When this resonance phenomenon occurs, measures have been taken such as changing the ultrasonic frequency from 28 kHz to 40 kHz, or attaching a sound absorbing material to the outer and inner surfaces of the cleaning tank.
【０００４】[0004]
【発明が解決しようとする課題】しかし、洗浄液の溶存
空気量が低下するにしたがい、キャビテーション作用が
定在波部に集中するようになり、その定在波部での超音
波強度が増加するのに対し、それ以外では弱くなる。こ
のため、超音波強度の強弱の差が大きく、洗浄むらが生
じやすくなる。そして、超音波の揺動装置などを設け、
均一な洗浄が得られるように対策する必要があった。However, as the amount of dissolved air in the cleaning liquid decreases, the cavitation action concentrates on the standing wave portion, and the ultrasonic wave intensity at the standing wave portion increases. On the other hand, it becomes weaker than that. For this reason, there is a large difference in the strength of the ultrasonic wave, and uneven cleaning easily occurs. Then, an ultrasonic oscillating device is provided,
It was necessary to take measures so that uniform cleaning could be obtained.
【０００５】また、共振現像が生じた場合、発振周波数
を変更するには、振動子を２機種準備しなければなら
ず、また、吸音材で音を吸収するには、これらの吸音材
を準備しなければならないなどの問題があった。When resonance development occurs, two types of vibrators must be prepared in order to change the oscillation frequency, and these sound absorbing materials must be prepared in order to absorb sound with the sound absorbing material. There were problems such as having to do.
【０００６】[0006]
【課題を解決するための手段】上記の問題点を解決する
ために、本発明は被洗浄物を洗浄する洗浄液を入れた洗
浄槽と、被洗浄物に超音波を照射する超音波装置と、洗
浄液を吸込みかつ送り出し洗浄槽との間に循環させるポ
ンプと、ポンプの吸込み側に接続されエア量を調整する
エア吸込バルブとにより構成されている。In order to solve the above problems, the present invention provides a cleaning tank containing a cleaning liquid for cleaning an object to be cleaned, an ultrasonic device for irradiating the object to be cleaned with ultrasonic waves, It is composed of a pump that sucks the cleaning liquid and circulates the cleaning liquid between the pump and the cleaning tank, and an air suction valve that is connected to the suction side of the pump and adjusts the amount of air.
【０００７】また、洗浄槽とポンプの吸込み側との間に
絞りバルブを設けている。A throttle valve is provided between the cleaning tank and the suction side of the pump.
【０００８】[0008]
【作用】ポンプによって洗浄槽の洗浄液がポンプを介し
て循環される。共振現像が生じた場合、エア吸込バルブ
を開き、エアをポンプ内に混入させ洗浄液中の溶存空気
量を増加させる。溶存空気量の増加により、キャビテー
ション効果が均一化して共振現象がなくなる。The cleaning liquid in the cleaning tank is circulated through the pump by the pump. When resonance development occurs, the air suction valve is opened and air is mixed into the pump to increase the amount of dissolved air in the cleaning liquid. Due to the increase in the amount of dissolved air, the cavitation effect becomes uniform and the resonance phenomenon disappears.
【０００９】洗浄槽とポンプの吸込み側の設けた絞りバ
ルブをしめる方向に調整すると、ポンプの吸込み側が負
圧になり、洗浄液中の溶存空気量が減少し脱気され、超
音波効果を高められる。If the throttling valve provided on the suction side of the cleaning tank and the pump is adjusted to the closing direction, the suction side of the pump becomes a negative pressure, the dissolved air amount in the cleaning liquid is reduced and deaerated, and the ultrasonic effect is enhanced. .
【００１０】[0010]
【実施例】図１はこの発明の実施例である。１は洗浄槽
であり槽１内に洗浄液２が入れられている。３は洗浄液
内に入れられた超音波振動子で図示しない発振器の信号
により超音波を洗浄液２中に照射する。４は被洗浄物で
あり、超音波振動子からの超音波と洗浄液との相乗効果
で洗浄される。１０はポンプであり、洗浄液２は吸込側
配管１２及び切替バルブ１３と絞りバルブ１４を介して
ポンプ１０に接続している。ポンプ１０の出力は排出配
管１１を介して洗浄液に接続され、洗浄液２は配管１
２、バルブ１３又はバルブ１４、ポンプ１０、配管１１
を介して循環される。１５はポンプ１０の入力に接続さ
れたエア吸込み量を調整するエア吸込みバルブでエアが
ポンプに入力する。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention. A cleaning tank 1 contains a cleaning liquid 2 in the tank 1. Reference numeral 3 denotes an ultrasonic transducer contained in the cleaning liquid, which irradiates the cleaning liquid 2 with ultrasonic waves by a signal from an oscillator (not shown). An item to be cleaned 4 is cleaned by the synergistic effect of the ultrasonic wave from the ultrasonic transducer and the cleaning liquid. Reference numeral 10 denotes a pump, and the cleaning liquid 2 is connected to the pump 10 via a suction side pipe 12, a switching valve 13 and a throttle valve 14. The output of the pump 10 is connected to the cleaning liquid via the discharge pipe 11, and the cleaning liquid 2 is connected to the pipe 1
2, valve 13 or valve 14, pump 10, pipe 11
Is circulated through. Reference numeral 15 is an air suction valve connected to the input of the pump 10 for adjusting the amount of air suction, and air is input to the pump.
【００１１】そして、被洗浄物が洗浄液を満たした水槽
に浸けられ、超音波振動子が図示しない発振器により制
御され、被洗浄物に超音波が照射されて洗浄される。Then, the object to be cleaned is immersed in a water tank filled with the cleaning liquid, the ultrasonic vibrator is controlled by an oscillator (not shown), and the object to be cleaned is irradiated with ultrasonic waves to be cleaned.
【００１２】洗浄液中の溶存空気量を減らして脱気し、
超音波効果を高める場合、切替バルブ１３を閉じ、絞り
バルブ１４を調整すれば、ポンプ１０の吸込み側が負圧
になり脱気される。また、キャビテーションが定在波に
集中し、洗浄むらが生じたときには、絞りバルブは同じ
状態にし、切替バルブ１３を全開にし、エア吸込バルブ
１５を調整することにより、ポンプ吸込み側から空気を
混入させ、溶存空気量を増加することができ、定在波へ
のキャビテーションの集中を防ぎ、均一のキャビテーシ
ョン効果が得られる。また、溶存空気量が増加し、キャ
ビテーション効果の均一化によって共振現象を防止する
ことができる。Degassing by reducing the amount of dissolved air in the cleaning liquid,
To enhance the ultrasonic effect, if the switching valve 13 is closed and the throttle valve 14 is adjusted, the suction side of the pump 10 becomes a negative pressure and is deaerated. When cavitation concentrates on the standing wave and uneven cleaning occurs, the throttle valve is kept in the same state, the switching valve 13 is fully opened, and the air suction valve 15 is adjusted so that air is mixed from the pump suction side. The amount of dissolved air can be increased, the concentration of cavitation on standing waves can be prevented, and a uniform cavitation effect can be obtained. In addition, the amount of dissolved air is increased and the cavitation effect is made uniform, so that the resonance phenomenon can be prevented.
【００１３】上記実施例では、絞りバルブと並列に切替
バルブを設けて、脱気には切替バルブを閉じ、洗浄液中
の溶存空気量を増加させるときは、切替バルブを全開に
しているが、切替バルブをなくし絞りバルブでこの作業
を行ってもよい。すなわち、脱気時には絞りバルブによ
り調整し、溶存空気量を増加させるときは絞りバルブを
全開にしてもよい。また、上記実施例では超音波振動子
を洗浄液中に入れているが、洗浄槽の底壁の外側又は側
壁の外側に設けてもよい。In the above embodiment, the switching valve is provided in parallel with the throttle valve, the switching valve is closed for deaeration, and the switching valve is fully opened when the amount of dissolved air in the cleaning liquid is increased. You may do this with a throttle valve without the valve. That is, the throttle valve may be adjusted during deaeration, and the throttle valve may be fully opened when increasing the dissolved air amount. Further, although the ultrasonic oscillator is put in the cleaning liquid in the above embodiment, it may be provided outside the bottom wall or outside the side wall of the cleaning tank.
【００１４】[0014]
【発明の効果】以上のように本発明では、共振現象が生
じたときはエアーをポンプ内に混入させて洗浄液中の溶
存空気量を増加させることができ、キャビテーション効
果が均一化して共振現象をなくすることができる。ま
た、ポンプの吸込側のバルブを調整することにより、ポ
ンプの吸入側を負圧にして洗浄液中の溶存空気量を減少
させることができ、超音波効果を高めることができる。As described above, according to the present invention, when a resonance phenomenon occurs, air can be mixed into the pump to increase the amount of dissolved air in the cleaning liquid, and the cavitation effect can be made uniform to reduce the resonance phenomenon. It can be lost. Further, by adjusting the valve on the suction side of the pump, the suction side of the pump can be made to have a negative pressure to reduce the amount of dissolved air in the cleaning liquid, and the ultrasonic effect can be enhanced.
【図１】本発明の洗浄槽内の洗浄液中の溶存空気量の増
減装置の概略図である。FIG. 1 is a schematic view of a device for increasing / decreasing an amount of dissolved air in a cleaning liquid in a cleaning tank according to the present invention.
【符号の説明】 １ 洗浄槽 ２ 洗浄液 ３ 超音波洗浄子 ４ 被洗浄物 １０ ポンプ １１ 排出配管 １２ 吸込側配管 １３ 切替バルブ １４ 絞りバルブ １５ エアー吸込バルブ[Explanation of symbols] 1 cleaning tank 2 cleaning liquid 3 ultrasonic cleaning element 4 object to be cleaned 10 pump 11 discharge piping 12 suction side piping 13 switching valve 14 throttle valve 15 air suction valve
Claims (2)
槽と、被洗浄物に超音波を照射する超音波装置と、上記
洗浄槽の上記洗浄液を吸い込み、かつ洗浄液を送り出し
上記洗浄槽との間を循環させるポンプと、上記ポンプの
吸い込み側に接続され吸込エア量を調整するエア吸込バ
ルブとにより構成された洗浄槽内の洗浄液中の溶存空気
量の増減装置。1. A cleaning tank containing a cleaning liquid for cleaning an object to be cleaned, an ultrasonic device for irradiating ultrasonic waves to the object to be cleaned, the cleaning liquid in the cleaning tank is sucked in, and the cleaning liquid is delivered to the cleaning tank. A device for increasing / decreasing the amount of dissolved air in the cleaning liquid in the cleaning tank, which is composed of a pump that circulates between the pump and an air suction valve that is connected to the suction side of the pump and that adjusts the amount of suction air.
の間に絞りバルブを設けた請求項１記載の洗浄槽内洗浄
内の洗浄液中の溶存空気量の増減装置。2. The device for increasing / decreasing the amount of dissolved air in the cleaning liquid in the cleaning tank according to claim 1, wherein a throttle valve is provided between the cleaning tank and the suction side of the pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25472694A JPH0889914A (en) | 1994-09-21 | 1994-09-21 | Device for increasing and decreasing quantity of dissolved air in washing liquid in washing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25472694A JPH0889914A (en) | 1994-09-21 | 1994-09-21 | Device for increasing and decreasing quantity of dissolved air in washing liquid in washing tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0889914A true JPH0889914A (en) | 1996-04-09 |
Family
ID=17269004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25472694A Pending JPH0889914A (en) | 1994-09-21 | 1994-09-21 | Device for increasing and decreasing quantity of dissolved air in washing liquid in washing tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0889914A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003031540A (en) * | 2001-07-18 | 2003-01-31 | Toshiba Corp | Ultrasonic cleaning unit, ultrasonic cleaning apparatus and method, and manufacturing methods of semiconductor device and liquid crystal display |
| JP4485598B1 (en) * | 2009-09-10 | 2010-06-23 | 善博 平川 | Method for cleaning articles using ultrasonic waves |
| JP2014144443A (en) * | 2013-01-30 | 2014-08-14 | Citizen Holdings Co Ltd | Ultrasonic cleaning apparatus |
-
1994
- 1994-09-21 JP JP25472694A patent/JPH0889914A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003031540A (en) * | 2001-07-18 | 2003-01-31 | Toshiba Corp | Ultrasonic cleaning unit, ultrasonic cleaning apparatus and method, and manufacturing methods of semiconductor device and liquid crystal display |
| JP4485598B1 (en) * | 2009-09-10 | 2010-06-23 | 善博 平川 | Method for cleaning articles using ultrasonic waves |
| WO2011030917A1 (en) * | 2009-09-10 | 2011-03-17 | Hirakawa Yoshihiro | Method for cleaning article employing ultrasonic wave |
| JP2011056408A (en) * | 2009-09-10 | 2011-03-24 | Yoshihiro Hirakawa | Washing method of article using ultrasonic wave |
| JP2014144443A (en) * | 2013-01-30 | 2014-08-14 | Citizen Holdings Co Ltd | Ultrasonic cleaning apparatus |
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