EP0450222B1 - Ultraschallwascheinrichtung - Google Patents

Ultraschallwascheinrichtung Download PDF

Info

Publication number
EP0450222B1
EP0450222B1 EP90308705A EP90308705A EP0450222B1 EP 0450222 B1 EP0450222 B1 EP 0450222B1 EP 90308705 A EP90308705 A EP 90308705A EP 90308705 A EP90308705 A EP 90308705A EP 0450222 B1 EP0450222 B1 EP 0450222B1
Authority
EP
European Patent Office
Prior art keywords
washing liquid
deaerated
nondeaerated
washing
liquid
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
EP90308705A
Other languages
English (en)
French (fr)
Other versions
EP0450222A2 (de
EP0450222A3 (en
Inventor
Shibano C/O S & C Co Ltd Yoshihide
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.)
S and C Co Ltd
Original Assignee
S and C 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 S and C Co Ltd filed Critical S and C Co Ltd
Publication of EP0450222A2 publication Critical patent/EP0450222A2/de
Publication of EP0450222A3 publication Critical patent/EP0450222A3/en
Application granted granted Critical
Publication of EP0450222B1 publication Critical patent/EP0450222B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0288—Ultra or megasonic jets

Definitions

  • This invention relates to spray type ultrasonic washing apparatus, and more particularly to such apparatus using deaerated washing liquid and provided with means for keeping such liquid in good deaerated condition while being sprayed towards a surface to be washed.
  • Ultrasonic washing apparatus is widely used for washing work surfaces, deflashing work surfaces, and the like. See, for example, US 4834124, which describes an ultrasonic washing apparatus having a washing liquid outlet nozzle shaped to improve washing efficiency. It is also known from DE 3916446 to use a jet of heavily aerated water for washing surfaces.
  • Cavitation has hitherto been supposed to be most easily formed in an ultrasonically treated liquid which is abundant in air bubbles. Experiments we have performed have however revealed that, on the contrary, cavitation can be more easily formed in a deaerated liquid. This is because air bubbles in a nondeaerated liquid absorb the energy of cavitation, thereby suppressing the formation of cavitation.
  • ultrasonic radiation is applied to a deaerated liquid, a drastic pressure decrease will be caused under certain conditions, and when the pressure of the deaerated liquid is reduced below saturated vapour pressure, the liquid will be evaporated to form air bubbles, which will rapidly expand to form cavities. Then the cavities will be compressed to cause very high pressure, thereby expediting the formation of cavitation.
  • This ultrasonic washing has the effect of reducing the time involved in washing surfaces because, as explained above, the use of deaerated liquid permits effective formation of cavitation.
  • Use of deaerated liquid in the form of a spray tends to permit invasion of air into the deaerated liquid while it is being sprayed towards the surface to be washed. As a consequence the liquid does not remain deaerated, and the washing effect decreases with the resulting decrease of cavitation.
  • spray type ultrasonic washing apparatus in which ultrasonic radiation is applied to washing liquid to be sprayed on a surface to be washed, so as to cause cavitation in the washing liquid
  • the apparatus comprising a washing liquid nozzle assembly comprising an inner nozzle defining a passage for deaerated washing liquid, and an outer nozzle surrounding said inner nozzle to define an annular passage for nondearerated washing liquid, so that nondeaerated washing liquid envelopes the deaerated washing liquid expelled from the nozzle in use, and a vibratory element for applying ultrasonic radiation to the deaerated washing liquid.
  • a spray type ultrasonic washing apparatus comprises a nozzle assembly 1 and a vibrating element 9.
  • the nozzle assembly 1 comprises an outer nozzle 2 and an inner nozzle 3, each in the form of a conical frustum.
  • the inner nozzle 3 defines a passage 8 through which deaerated liquid is made to flow before being sprayed.
  • An annular passage 7, through which nondeaerated liquid is made to flow, is formed between the outer and inner nozzles 2 and 3.
  • the nozzle assembly 1 is tapered towards the nozzle tip 4.
  • the outer nozzle 2 is provided with an inlet 5 for nondeaerated liquid, whilst the inner nozzle 3 is provided with an inlet 6 for deaerated liquid.
  • a vibrating element 9 for producing ultrasonic radiation has a vibrating piece 10 integrally connected thereto. The vibrating piece 10 is attached to the rear end of the nozzle assembly 1.
  • a vessel 16 contains washing liquid in nondeaerated form.
  • the vessel 16 is connected to the inlet 5 of the nozzle assembly 1 via a pump 15a.
  • the vessel 16 is connected to the inlet 6 of the nozzle assembly 1 via deaerating means 17 and a pump 15b.
  • nondeaerated washing liquid 12 is supplied to the inlet 5 of the nozzle assembly 1
  • deaerated washing liquid 11 is supplied to the inlet 6.
  • the deaerating means 17 may be constructed that the liquid may be boiled and deaerated.
  • nondeaerated washing liquid 12 is made to flow to the nozzle tip 4 through the passage 7, whilst deaerated washing liquid 11 is made to flow to the nozzle tip 4 through the passage 8.
  • the deaerated washing liquid 11 is encircled by nondeaerated washing liquid 12, and the deaerated and nondeaerated washing liquids are sprayed onto a surface 13 to be washed.
  • the temperature T A of the nondeaerated washing liquid is set to be substantially higher than the temperature T B of the deaerated washing liquid, by heating the nondeaerated liquid and cooling the deaerated liquid.
  • the flow rate V A of the nondeaerated washing liquid is set to be substantially higher than the flow rate V B of the deaerated washing liquid.
  • the vibrating element 9 is connected to a power supply 18, thereby putting its vibrating piece 10 into operation.
  • ultrasound is radiated through the deaerated washing liquid 11 in the inner passage 8 of the nozzle assembly 1. Cavitation is formed, and the surface 13 is washed efficiently.
  • washing liquid After washing the surface 13, the washing liquid is collected in a vessel 14, which is placed below the surface to be washed. In the vessel 14, deaerated washing liquid and aerated washing liquid are mixed together, and also air becomes mixed therewith. Thus, nondeaerated washing liquid results, which is then returned to the vessel 16 via a pump 15c.
  • a spray type ultrasonic washing apparatus uses a coaxial nozzle structure 1 which is composed of inner and outer hollow conical frustums 3 and 2. These frustums are arranged to have nondeaerated washing liquid supplied to the annular passage formed between the outer and inner frustums, and deaerated washing liquid supplied to the inner hollow frustum, thus causing the deaerated washing liquid to be enclosed by nondeaerated washing liquid in being sprayed against a surface to be washed, and thereby isolating the deaerated washing liquid from the surrounding atmosphere to prevent invasion of air into the deaerated washing liquid on its way to the surface.
  • cavitation can be formed effectively in the deaerated washing liquid, and washing can be performed with increased efficiency.
  • the temperature of the nondeaerated washing liquid is set to be higher than that of the deaerated washing liquid. This temperature difference provides a further barrier against invasion of air from the surrounding nondeaerated washing liquid into the deaerated washing liquid, even if air enters the enclosing nondeaerated washing liquid from the surrounding atmosphere. This further enhances the effective formation of cavitation in the deaerated washing liquid by preventing invasion of air into the same.
  • the flow rate of the deaerated washing liquid 11 is set to be substantially lower than that of nondeaerated washing liquid 12. This is advantageous to the operation of spraying the deaerated and nondeaerated washing liquid in combination.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Nozzles (AREA)
  • Special Spraying Apparatus (AREA)

Claims (3)

  1. Ultraschall-Sprühreinigungsvorrichtung, bei der eine Reinigungsflüssigkeit, die auf eine zu reinigende Fläche zu sprühen ist, Ultraschallstrahlung ausgesetzt wird, um in der Reinigungsflüssigkeit Kavitation zu bewirken, die Vorrichtung umfassend eine Reinigungsflüssigkeits-Düsenbaugruppe (1) mit einer inneren, einen Kanal (8) für entgaste Reinigungsflüssigkeit (11) begrenzenden Düse (3) und einer äußeren, die innere Düse zur Begrenzung eines Ringkanals (7) für nicht entgaste Reinigungsflüssigkeit (12) umschließenden Düse (2), so daß im Gebrauch nicht entgaste Reinigungsflüssigkeit die von der Düse ausgestoßene entgaste Reinigungsflüssigkeit umgibt, sowie ein Vibrationselement (9), um die entgaste Reinigungsflüssigkeit Ultraschallstrahlung auszusetzen.
  2. Vorrichtung nach Anspruch 1, ferner umfassend Mittel zum Kühlen der entgasten Reinigungsflüssigkeit (11) sowie Mittel zum Erwärmen der nicht entgasten Reinigungsflüssigkeit (12), um zu bewirken, daß sich die entgaste Reinigungsflüssigkeit auf einer Temperatur befindet, die wesentlich niedriger als diejenige der nicht entgasten Reinigungsflüssigkeit ist.
  3. Vorrichtung nach Anspruch 1 oder 2, ferner umfassend Mittel, um zu bewirken, daß die Strömungsrate der entgasten Reinigungsflüssigkeit (11) in dem Kanal (8) wesentlich geringer als diejenige der in dem Kanal (7) strömenden nicht entgasten Reinigungsflüssigkeit (12) ist.
EP90308705A 1990-04-03 1990-08-08 Ultraschallwascheinrichtung Expired - Lifetime EP0450222B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2088560A JPH03288581A (ja) 1990-04-03 1990-04-03 スプレー式超音波洗浄装置
JP88560/90 1990-04-03

Publications (3)

Publication Number Publication Date
EP0450222A2 EP0450222A2 (de) 1991-10-09
EP0450222A3 EP0450222A3 (en) 1992-07-29
EP0450222B1 true EP0450222B1 (de) 1995-11-29

Family

ID=13946256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90308705A Expired - Lifetime EP0450222B1 (de) 1990-04-03 1990-08-08 Ultraschallwascheinrichtung

Country Status (4)

Country Link
EP (1) EP0450222B1 (de)
JP (1) JPH03288581A (de)
AT (1) ATE130786T1 (de)
DE (1) DE69023897T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW212146B (en) * 1992-05-25 1993-09-01 Yoshihide Shibano Supersonic waves washing method
JP2900788B2 (ja) * 1994-03-22 1999-06-02 信越半導体株式会社 枚葉式ウェーハ処理装置
DE102015211318A1 (de) * 2015-06-19 2016-12-22 Krones Ag Verfahren zum Reinigen von Behältern und/oder Behältergebinden und Reinigungsvorrichtung
CN105057250B (zh) * 2015-08-07 2017-03-15 河海大学常州校区 换能器嵌入式强化空化射流清洗装置
CN105834165A (zh) * 2016-05-06 2016-08-10 苏州工业园区海纳科技有限公司 一种带负压吸收的超声清洗装置
US11679454B2 (en) 2017-08-31 2023-06-20 The Boeing Company Portable cavitation peening method and apparatus
RU2018124439A (ru) * 2017-08-31 2020-01-13 Зе Боинг Компани Способ кавитационного наклепа и передвижное устройство для его осуществления
US10836012B2 (en) 2017-08-31 2020-11-17 The Boeing Company Method and apparatus for fluid cavitation abrasive surface finishing
US10233511B1 (en) * 2017-08-31 2019-03-19 The Boeing Company Portable cavitation peening method and apparatus
CN107876230B (zh) * 2017-11-29 2023-05-30 九牧厨卫股份有限公司 一种摆动水出水芯及出水装置
CN112275463A (zh) * 2020-10-16 2021-01-29 哈尔滨工程大学 一种新型自激振荡脉冲空化喷嘴

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816752A1 (de) * 1978-04-18 1979-10-25 Kaercher Gmbh & Co Alfred Vorrichtung zum verspruehen von kalkfluessigkeit
EP0140505B1 (de) * 1983-08-15 1989-03-15 Generale de Mecanique et Thermique Verfahren zur Reinigung von industriellen Teilen und Düsenanordnung bei diesem Verfahren
DE3916446A1 (de) * 1988-06-14 1990-03-15 Autobahnbaukombinat Veb Verfahren und vorrichtung zur bearbeitung von festen stoffen mittels druckwasserstrahl

Also Published As

Publication number Publication date
DE69023897T2 (de) 1996-04-18
ATE130786T1 (de) 1995-12-15
EP0450222A2 (de) 1991-10-09
JPH0536114B2 (de) 1993-05-28
DE69023897D1 (de) 1996-01-11
EP0450222A3 (en) 1992-07-29
JPH03288581A (ja) 1991-12-18

Similar Documents

Publication Publication Date Title
US5186389A (en) Spray tube ultrasonic washing apparatus
EP0450222B1 (de) Ultraschallwascheinrichtung
KR100244571B1 (ko) 분류가공장치, 분류가공시스템 및 분류가공방법
US4135670A (en) Shower device
KR960015776A (ko) 액공급장치
KR20030024631A (ko) 액체에 가스를 공급하는 방법 및 장치
JP3320105B2 (ja) キヤビテーシヨン噴流用ノズル
JP2000157939A (ja) 洗浄方法及び装置
JP3343371B2 (ja) キヤビテーシヨン噴射装置
CN211554302U (zh) 一种清洗装置及激光雷达系统
US7393331B2 (en) Vortex bubble-removing and cooling system for the electromagnetic shock wave generator for the lithotripter
JP3320018B2 (ja) ミスト生成装置
JPH0647068B2 (ja) 異種流体接触混合溶解量調節装置
JPS641161B2 (de)
JPS63198942A (ja) 米等の粒状体の洗浄方法とその装置
JP2515499B2 (ja) 二流体スプレイ方法
JP2835559B2 (ja) ワークの洗浄装置
JP4509763B2 (ja) 気液混合流噴射装置
JP2512342Y2 (ja) 超音波洗浄、バリ取り装置
JPS6242771Y2 (de)
JP2710697B2 (ja) 気泡発生装置
JPH09327637A (ja) キャビテーション気泡生成用液中ノズル装置
JPH05345173A (ja) ワークの洗浄方法及び洗浄装置
JP2001259550A (ja) 洗浄用ノズル
JPH07171442A (ja) キャビテーション洗浄装置における噴射ノズル

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19930108

17Q First examination report despatched

Effective date: 19931228

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19951129

Ref country code: BE

Effective date: 19951129

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19951129

Ref country code: LI

Effective date: 19951129

Ref country code: CH

Effective date: 19951129

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19951129

Ref country code: DK

Effective date: 19951129

Ref country code: AT

Effective date: 19951129

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19951129

REF Corresponds to:

Ref document number: 130786

Country of ref document: AT

Date of ref document: 19951215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69023897

Country of ref document: DE

Date of ref document: 19960111

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960229

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960831

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980730

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000428

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000803

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000829

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010808

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010808

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020501