EP0531902B1 - Vorrichtung zur Beseitigung von Ablagerungen, vorzugsweise Metalloxid- (z.B. Rost) oder Kalkablagerungen in einem Rohrleitungssystem - Google Patents

Vorrichtung zur Beseitigung von Ablagerungen, vorzugsweise Metalloxid- (z.B. Rost) oder Kalkablagerungen in einem Rohrleitungssystem Download PDF

Info

Publication number
EP0531902B1
EP0531902B1 EP92115173A EP92115173A EP0531902B1 EP 0531902 B1 EP0531902 B1 EP 0531902B1 EP 92115173 A EP92115173 A EP 92115173A EP 92115173 A EP92115173 A EP 92115173A EP 0531902 B1 EP0531902 B1 EP 0531902B1
Authority
EP
European Patent Office
Prior art keywords
resonator
pipeline system
casing
ultrasound
ultrasound source
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
EP92115173A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0531902A1 (de
Inventor
Peter Maschek
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0531902A1 publication Critical patent/EP0531902A1/de
Application granted granted Critical
Publication of EP0531902B1 publication Critical patent/EP0531902B1/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
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • 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
    • B08B2209/00—Details of machines or methods for cleaning hollow articles
    • B08B2209/005—Use of ultrasonics or cavitation, e.g. as primary or secondary action

Definitions

  • the present invention relates to a device for removing deposits and / or for preventing deposits in a pipeline system, in particular a water pipeline system according to the preamble of patent claim 1.
  • Such a device is already known from DE 38 43 110 C1.
  • the housing of this known device is connected to the pipe system via a pipe insert. Accordingly, the device, in particular its resonator, lies outside the usual flow cross-section of the piping system. In addition, only half of the resonator is in contact with water. The ultrasound energy is emitted from the resonator at an angle to the longitudinal direction of the piping system.
  • This known embodiment has the disadvantage that overheating of the device occurs after only a short period of operation, which in practice requires expensive cooling measures or else enables operation at a relatively low output. Furthermore, radiation from both sides in the piping system cannot take place through this configuration.
  • the object of the present invention is to develop the device according to the preamble of claim 1 in such a way that improved cooling is ensured during operation or the device can be operated at higher intensity over a longer period of time.
  • the present object is achieved in the generic device by the features described in the characterizing part of claim 1.
  • the subclaims relate to expedient embodiments of the invention.
  • the invention - since it is enclosed by the water of the piping system and the housing is integrated in the longitudinal direction of the piping system - an excellent heat exchange with the water of the piping system and therefore a good cooling of the sound source.
  • the invention enables improved efficiency, since the ultrasound energy is emitted in the longitudinal direction of the latter due to the special arrangement of the housing within the pipeline system with the possibility of delivering the ultrasonic energy to both sides of the piping system.
  • the ultrasound source is expediently located in a resonator which emits the vibrations generated by the ultrasound source, the resonator being in water contact and surrounded by a two-part housing which can be connected to the piping system.
  • the resonator In order to ensure effective transmission of the ultrasonic vibrations, the resonator consists of solid material, the ultrasonic source being arranged in a recess in the resonator and the recess being closed by a cover.
  • the main direction of vibration of the ultrasound source can be influenced by the shape (e.g. plate or disk shape) and arrangement of the ultrasound source within the resonator. If a disk-shaped ultrasound source is arranged perpendicular to the longitudinal axis of the piping system, the ultrasound vibrations are also emitted in the longitudinal direction of the piping system.
  • the resonator is provided with support projections which engage on the inside of the housing and otherwise a circumferential gap exists between the housing and the resonator, which ensures that the resonator is completely surrounded by water except for the surface of the support projections.
  • the resonator is thus only connected to the housing via its support projections.
  • the support projections are preferably made of flexible material (for example made of flexible plastic or rubber) in order to avoid that unpleasant vibration noises are caused in the piping system, in particular when using a low-frequency fundamental vibration.
  • the housing can have an annular recess in which an ultrasound source designed in the form of a ring or half ring is arranged, which at least partially surrounds the resonator.
  • the vibration energy of the ultrasound source is emitted on one side in the water flow direction or on both sides.
  • the respective emission of ultrasonic vibrations into the pipeline system takes place in certain Periods, ie intermittently. For example, this can be done in minute or even hourly intervals.
  • the emission of ultrasonic vibrations with alternating vibration frequencies can expediently take place with the aim of exposing the deposits to one (of several possible) vibration frequencies that is particularly effective.
  • Reference number 1 stands for the entire device according to the invention, which is installed in a water pipe 2 of a pipe system.
  • the device comprises a housing 3 consisting of two half-shells with a centrally arranged longitudinal recess 8 and an annular recess 15 arranged concentrically around it.
  • the two half-shells of the housing 3 are connected to one another using a screw connection 26 and circumferential seals 18 and 28.
  • the respective water pipe 2 opens into an inlet opening 4 or outlet opening 5, the connection of the water pipe 2 with the inlet or outlet opening being effected via a conventional screw closure 6 or 7, which is only indicated in the drawing.
  • a resonator 9 which contains the ultrasound source.
  • the resonator 9 comprises a resonator body 10 which is made of solid material e.g. Aluminum, brass, copper or stainless steel and has a recess 24 on the downstream end, in which an ultrasound source in the form of a piezoelectric disk 14 is arranged.
  • a resonator body 10 which is made of solid material e.g. Aluminum, brass, copper or stainless steel and has a recess 24 on the downstream end, in which an ultrasound source in the form of a piezoelectric disk 14 is arranged.
  • the recess 24 is closed by the resonator cover 11.
  • the resonator 9 has on its end faces made of flexible material support projections 22 which engage in corresponding recesses 25 on the respective end face of the longitudinal recess 8.
  • a circumferential gap 23 is provided between the inside of the longitudinal recess 8 and the resonator 9, which is enlarged in the area of the incision 12 (upstream) or the incision 13 located downstream.
  • the piezoelectric disk 14 is arranged within the device 1 such that its normal runs parallel to the flow direction of the water in the pipeline system, so that the main direction of the ultrasonic oscillation of the piezoelectric disk 14 takes place in the longitudinal direction of the pipeline system.
  • the ultrasonic waves are accordingly emitted from the piezoelectric disk 14 via the resonator 9 to the water present in the incisions 12 and 13, respectively, into the piping system.
  • a contact plate 30, 31 with connecting lines is provided on the main surfaces of the piezoelectric disk 14.
  • a further ultrasound source in the form of a piezoelectric half ring or half jacket is provided within the annular recess 15, which preferably emits its vibrational energy perpendicular to the longitudinal axis of the piping system.
  • a temperature sensor 19 is provided, for example in the form of a thermocouple, directly on the piezoelectric disk 14 in the recess 24 on the resonator 9.
  • the temperature sensor 19 is connected to a controller (not shown) and, when a limit temperature (for example 35 ° C.) is exceeded, automatically switches off the operation of the device 1 according to the invention.
  • a feedthrough 21 is provided in the resonator 9, which, with the interposition of a seal 27 in the area of the gap 23, in a housing bushing passes in the form of a bore 20.
  • a suitable connection 29 is provided on the outside in order to be able to connect the connecting lines to the relevant components.
  • a control not shown, is provided which ensures the setting of the oscillation frequency and / or oscillation energy of the respective ultrasound sources.
  • the ultrasonic vibration to be applied to the pipeline system comprises a fundamental vibration of, for example, 25 Hz with a harmonic of, for example, 45 kHz.
  • This ultrasonic vibration can be intermittent depending on the requirements, i.e. be applied to the piping system at certain intervals.
  • ultrasonic vibration energy with an alternating vibration frequency and / or vibration energy can act on the pipeline system. This can be easily ensured by electronic means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP92115173A 1991-09-10 1992-09-04 Vorrichtung zur Beseitigung von Ablagerungen, vorzugsweise Metalloxid- (z.B. Rost) oder Kalkablagerungen in einem Rohrleitungssystem Expired - Lifetime EP0531902B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4129927A DE4129927A1 (de) 1991-09-10 1991-09-10 Verfahren und vorrichtung zur beseitigung von ablagerungen, vorzugsweise metalloxid- (z.b. rost) oder kalkablagerungen in einem rohrleitungssystem sowie verwendung von ultraschall zur reinigung eines installierten rohrleitungssystems
DE4129927 1991-09-10

Publications (2)

Publication Number Publication Date
EP0531902A1 EP0531902A1 (de) 1993-03-17
EP0531902B1 true EP0531902B1 (de) 1997-01-08

Family

ID=6440194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115173A Expired - Lifetime EP0531902B1 (de) 1991-09-10 1992-09-04 Vorrichtung zur Beseitigung von Ablagerungen, vorzugsweise Metalloxid- (z.B. Rost) oder Kalkablagerungen in einem Rohrleitungssystem

Country Status (5)

Country Link
EP (1) EP0531902B1 (enrdf_load_stackoverflow)
AT (1) ATE147294T1 (enrdf_load_stackoverflow)
CZ (1) CZ278192A3 (enrdf_load_stackoverflow)
DE (2) DE4129927A1 (enrdf_load_stackoverflow)
SK (1) SK278192A3 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5458860A (en) * 1992-06-03 1995-10-17 Mobil Oil Corporation Method for removing alkaline sulfate scale
DE4439142C2 (de) * 1994-11-03 2002-02-21 Messer Griesheim Gmbh Verfahren zur Innenreinigung von Gasflaschen
DE19711135C2 (de) * 1997-03-07 1999-09-09 Buckup Vorrichtung und Verfahren zum Reinigen, Regenerieren und Sanieren von Tiefbrunnen und Bohrlöchern
DE19714665C1 (de) * 1997-04-09 1998-11-12 Fraunhofer Ges Forschung Vorrichtung zur Beseitigung und Verhinderung von Ablagerungen mit Ultraschallwellen in flüssigen Medien
US6227215B1 (en) * 1999-02-23 2001-05-08 Yasumasa Akazawa Piping cleaning device
DE102012018740B4 (de) 2012-09-18 2016-03-03 Reinhard Gerasch Vorrichtung und Verfahren zur Ultraschallenergieerzeugung durch Stromimpulse im breitem Leistunsbereich und mit großem Wirkungsgrad
CN108325933B (zh) * 2016-06-29 2020-07-14 陆可 超声波管道系统
CN108480326B (zh) * 2018-04-08 2023-05-05 华北电力大学（保定） 一种基于逆压电效应的气力输送管道疏通装置
CN110479693A (zh) * 2019-08-15 2019-11-22 安徽省矿业机电装备有限责任公司 一种通液管内孔表面处理工艺
CN112850453B (zh) * 2021-01-06 2023-11-10 义乌市双江湖开发集团有限公司 一种装配整体式建筑叠合楼板装平稳吊装系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421939A (en) * 1965-12-27 1969-01-14 Branson Instr Method and apparatus for cleaning a pipe with sonic energy
US3409031A (en) * 1966-11-18 1968-11-05 Fletcher A. Benbow Sonic cleaning apparatus for pipes
FR2195705A1 (en) * 1972-08-11 1974-03-08 Sedlov Leonid Ultrasonic tube cleaning equipment - with adjustable transducer head holders
GB8429312D0 (en) * 1984-11-20 1984-12-27 Gen Dispensing Syst Fluid flow control valve
US4692982A (en) * 1986-05-22 1987-09-15 Rice Norman B Lining removal process
JP2832443B2 (ja) * 1988-11-22 1998-12-09 本多電子株式会社 マルチ周波数超音波洗浄方法及び洗浄装置
DE3843110C1 (enrdf_load_stackoverflow) * 1988-12-21 1990-02-22 Gruenbeck Wasseraufbereitung Gmbh, 8884 Hoechstaedt, De

Also Published As

Publication number Publication date
DE4129927C2 (enrdf_load_stackoverflow) 1993-09-02
SK278192A3 (en) 1993-11-10
DE59207834D1 (de) 1997-02-20
EP0531902A1 (de) 1993-03-17
CZ278192A3 (en) 1993-03-17
DE4129927A1 (de) 1993-03-18
ATE147294T1 (de) 1997-01-15

Similar Documents

Publication Publication Date Title
EP0531902B1 (de) Vorrichtung zur Beseitigung von Ablagerungen, vorzugsweise Metalloxid- (z.B. Rost) oder Kalkablagerungen in einem Rohrleitungssystem
DE69512934T2 (de) Fluidzuleitung zur herabsetzung der druckschwingungen
EP0322522B1 (de) Dichtband
EP0488097B1 (de) Akustische Kammer für die Aerosolbehandung von Abgasen
DE10311996A1 (de) Anordnung eines Abgasturboladers mit einem Trägergehäuse
EP0769683A2 (de) Anordnung zur Überwachung eines vorbestimmten Füllstands einer Flüssigkeit in einem Behälter
EP0713046A1 (de) Vorrichtung zur Schalldämmung in Rohrleitungen
DE2047883A1 (de) Schwingungsubertrager fur Ultraschall
EP0303102B1 (de) Dichtband
WO2019101666A1 (de) Ultraschallschwingeinheit mit dämpfung
WO1991009279A1 (de) Schallisolierte halterung eines ultraschallwandlers
DE3026730A1 (de) Auspuffanlage
EP1068042A1 (de) Schweisselektrode mit einer anordnung zur ultraschalleinbringung zur prüfung von schweissverbindungen
EP0586944A1 (de) Rohr-Dichtungseinsatz mit Zentriereinrichtung
DE102014113655A1 (de) Ventilgehäuse
DE60009401T2 (de) Vorrichtung zum Befestigen eines Hitzeschildes für eine Ölpumpe
DE2934928A1 (de) Vorrichtung zur dauerueberwachung eines anlagenteils sowie ueberwachungsverfahren mit einer solchen vorrichtung
EP4345423A1 (de) Sensoreinheit
DE19642263C2 (de) Dichtverschluß
DE69018301T2 (de) Zerstäuber und Verfahren zur Behandlung von Rauchgasen.
DE102016117689B4 (de) Sonotrodeneinheit sowie Verfahren zu ihrer Herstellung
EP1277927A1 (de) Einrichtung zum Lagern eines ersten Bauteils an einem zweiten Bauteil
DE20106871U1 (de) Zylindrischer Sensor winklig zur Längsachse verlaufendem Erfassungsbereich
WO2024218017A1 (de) Schutzvorrichtung vor verschmutzung für einen optischen sensor, insbesondere einen lidar-sensor
EP4506597A1 (de) Semimetalldichtung

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: A1

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

17P Request for examination filed

Effective date: 19930917

17Q First examination report despatched

Effective date: 19941026

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

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 ES FR GB IT LI NL

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

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: 19970108

Ref country code: ES

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

Effective date: 19970108

Ref country code: GB

Effective date: 19970108

Ref country code: FR

Effective date: 19970108

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 PRESCRIBED TIME-LIMIT;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.

Effective date: 19970108

REF Corresponds to:

Ref document number: 147294

Country of ref document: AT

Date of ref document: 19970115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59207834

Country of ref document: DE

Date of ref document: 19970220

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19970108

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

Ref country code: AT

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

Effective date: 19970904

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

Ref country code: CH

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

Effective date: 19970930

Ref country code: BE

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

Effective date: 19970930

Ref country code: LI

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

Effective date: 19970930

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
BERE Be: lapsed

Owner name: MASCHEK PETER

Effective date: 19970930

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: DE

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

Effective date: 19980701