EP0531902B1 - Apparatus for removing deposits, especially metal oxide (e.g. rust) or scale, in a pipeline system - Google Patents
Apparatus for removing deposits, especially metal oxide (e.g. rust) or scale, in a pipeline system Download PDFInfo
- 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
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- 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
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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.
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- 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)
Abstract
Description
Die vorliegende Erfindung betrifft eine Vorrichtung zur Beseitigung von Ablagerungen und/oder zur Vermeidung von Ablagerungen in einem Rohrleitungssytem, insbesondere Wasserrohrleitungssystem gemäß dem Oberbegriff des Patentanspruchs 1.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
Eine derartige Vorrichtung ist bereits aus der DE 38 43 110 C1 bekannt. Das Gehäuse dieser bekannten Vorrichtung steht dabei über ein Rohrleitungseinsatzstück mit dem Rohrleitungssystem in Verbindung. Dementsprechend liegt die Vorrichtung, insbesondere deren Resonator, außerhalb des üblichen Strömungsquerschnitts des Rohrleitungssystems. Der Resonator ist darüber hinaus nur zur Hälfte in Wasserkontakt. Die Abstrahlung der Ultraschallenergie vom Resonator erfolgt schräg zur Längsrichtung des Rohrleitungssystems. Diese bekannte Ausgestaltung hat den Nachteil, daß bereits nach kurzer Betriebsdauer eine Überhitzung der Vorrichtung eintritt, die in der Praxis aufwendige Kühlmaßnahmen erforderlich macht oder aber einen Betrieb bei relativ niedriger Leistung ermöglicht. Ferner kann eine beidseitige Abstrahlung im Rohrleitungssystem durch diese Ausgestaltung nicht erfolgen.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.
Die Aufgabe der vorliegenden Erfindung besteht darin, die Vorrichtung nach dem Oberbegriff des Anspruchs 1 derart weiterzubilden, daß während des Betriebs eine verbesserte Kühlung gewährleistet ist bzw. die Vorrichtung über längere Zeit mit höherer Intensität betrieben werden kann.The object of the present invention is to develop the device according to the preamble of
Die vorliegende Aufgabe wird bei der gattungsgemäßen Vorrichtung durch die im kennzeichnenden Teil des Anspruchs 1 beschriebenen Merkmale gelöst. Die Unteransprüche betreffen zweckmäßige Ausgestaltungen der Erfindung. Die Erfindung bewirkt - da sie vom Wasser des Rohrleitungssystems umschlossen ist, und das Gehäuse in Längsrichtung zum Rohrleitungssystem in letzteres integriert ist - einen hervorragenden Wärmeaustausch mit dem Wasser des Rohrleitungssystems und daher eine gute Kühlung der Schallquelle. Daneben ermöglicht die Erfindung einen verbesserten Wirkungsgrad, da die Ultraschallenergie aufgrund der besonderen Anordnung des Gehäuses innerhalb des Rohrleitungssystems in Längsrichtung zu letzterem abgegeben werden kann, wobei die Möglichkeit besteht, die Ultraschallenergie zu beiden Seiten des Rohrleitungssystems abzugeben.The present object is achieved in the generic device by the features described in the characterizing part of
Zweckmäßigerweise befindet sich die Ultraschallquelle in einem Resonator, welcher die von der Ultraschallquelle erzeugten Schwingungen abstrahlt, wobei der Resonator in Wasserkontakt steht und von einem zweiteiligen Gehäuse umgeben ist, welches mit dem Rohrleitungssystem verbindbar ist.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.
Um eine wirksame Übertragung der Ultraschallschwingungen zu gewährleisten, besteht der Resonator aus Vollmaterial, wobei die Ultraschallquelle in einer Ausnehmung des Resonators angeordnet und die Ausnehmung von einem Deckel verschlossen ist. Die Hauptschwingungsrichtung der Ultraschallquelle läßt sich durch Form (z.B. Platten- oder Scheibenform) und Anordnung der Ultraschallquelle innerhalb des Resonators beeinflussen. Wird eine scheibenförmige Ultraschallquelle senkrecht zur Längsachse des Rohrleitungssystems angeordnet, so werden die Ultraschallschwingungen ebenfalls in Längsrichtung des Rohrleitungssystems abgegeben.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.
Um einen möglichst vollständigen Kontakt des Resonators und damit eine optimale Kühlung zu gewährleisten, ist gemäß einer weiteren Ausgestaltung der Erfindung der Resonator mit Auflagevorsprüngen versehen, die an der Innenseite des Gehäuses angreifen und zwischen Gehäuse und Resonator ansonsten ein umlaufender Spalt besteht, der gewährleistet, daß der Resonator bis auf die Fläche der Auflagevorsprünge vollständig mit Wasser umgeben ist. Der Resonator steht damit lediglich über seine Auflagevorsprünge mit dem Gehäuse in Verbindung.In order to ensure the most complete possible contact of the resonator and thus optimal cooling, according to a further embodiment of the invention 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.
Die Auflagevorsprünge bestehen vorzugsweise aus flexiblem Material (z.B. aus flexiblem Kunststoff oder Gummi), um zu vermeiden, daß insbesondere bei Verwendung einer niederfrequenten Grundschwingung unangenehme Schwingungsgeräusche im Rohrleitungssystem hervorgerufen werden.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.
Zur Erhöhung der Reinigungsintensität der Vorrichtung ist dieses mit mindestens einer weiteren Ultraschallquelle ausgestaltet, welche Schwingungen schräg oder senkrecht zur Längsachse des Gehäuses abgibt. In Ausgestaltung dessen kann das Gehäuse eine ringförmige Ausnehmung aufweisen, in welcher eine ring- oder halbring-förmig ausgebildete Ultraschallquelle angeordnet ist, die den Resonator zumindest zum Teil umschließt.In order to increase the cleaning intensity of the device, it is designed with at least one further ultrasound source which emits vibrations obliquely or perpendicular to the longitudinal axis of the housing. In an embodiment of this, 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.
Nach zweckmäßigen Ausgestaltungen des erfindungsgemäßen Verfahrens erfolgt die Abstrahlung der Schwingungsenergie der Ultraschallquelle einseitig in Wasserflußrichtung oder beidseitig.According to expedient refinements of the method according to the invention, the vibration energy of the ultrasound source is emitted on one side in the water flow direction or on both sides.
Zur Vermeidung von Überhitzungen und/oder bei besonders großem Anfall von Ablagerungen im Zuge des Reinigungsverfahrens, aber auch zur Vermeidung von Neuablagerungen in einem neu installierten oder bereits bestehenden Rohrleitungssystem erfolgt gemäß einer weiteren Ausgestaltung des erfindungsgemäßen Verfahrens die jeweilige Abgabe von Ultraschallschwingungen in das Rohrleitungssystem in bestimmten Zeitabschnitten, d.h. intermittierend. Beispielsweise kann dies in Minuten- oder sogar Stundenabständen erfolgen.In order to avoid overheating and / or in the event of a particularly large accumulation of deposits in the course of the cleaning process, but also to avoid new deposits in a newly installed or already existing pipeline system, according to a further embodiment of the method according to the invention, 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.
Für den Fall, daß man besondere Ablagerungen eines Rohrleitungssystems zu bekämpfen versucht, jedoch nicht weiß, um welche Ablagerungen es sich handelt, kann zweckmäßigerweise die Abgabe von Ultraschallschwingungen mit alternierenden Schwingungsfrequenzen erfolgen, mit dem Ziel, die Ablagerungen einer (von mehreren möglichen) Schwingungsfrequenzen auszusetzen, die besonders wirksam ist.In the event that one tries to combat special deposits of a pipeline system, but does not know which deposits are involved, 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.
Eine besonders gute Wirkung des Verfahrens hat sich dann gezeigt, wenn die jeweilige Abgabe von Ultraschallschwingungen in das Rohrleitungssystem mit mehreren, überlagerten Schwingungsfrequenzen erfolgt. Man geht beispielsweise von einer Grundschwingung im Bereich von 25 Hz aus und überlagert diese Grundschwingung mit einer Oberschwingung im Ultraschallbereich, z.B. 45 kHz.A particularly good effect of the method has been shown when the respective emission of ultrasonic vibrations into the pipeline system takes place with several, superimposed vibration frequencies. For example, one assumes a fundamental oscillation in the range of 25 Hz and superimposes it Fundamental vibration with a harmonic in the ultrasonic range, e.g. 45 kHz.
Nachstehend wird eine spezielle Ausgestaltung der Erfindung anhand der Zeichnungsfigur näher erläutert. Der Einfachheit halber sind gleiche Merkmale lediglich einmal mit einem Bezugszeichen versehen.A special embodiment of the invention is explained in more detail below with reference to the drawing figure. For the sake of simplicity, the same features are provided with a reference symbol only once.
Bezugsziffer 1 steht für die gesamte erfindungsgemäße Vorrichtung, welche in ein Wasserleitungsrohr 2 eines Rohrleitungssystems installiert ist.
Die Vorrichtung umfaßt ein aus zwei Halbschalen bestehendes Gehäuse 3 mit einer mittig angeordneten Längsausnehmung 8 sowie einer konzentrisch darum angeordneten ringförmigen Ausnehmung 15.The device comprises a
Die beiden Halbschalen des Gehäuses 3 sind unter Verwendung einer Schraubverbindung 26 und umlaufender Dichtungen 18 sowie 28 miteinander verbunden.The two half-shells of the
Das jeweilige Wasserleitungsrohr 2 mündet in eine Einlaßöffnung 4 bzw. Auslaßöffnung 5, wobei die Verbindung von Wasserleitungsrohr 2 mit Einlaß- bzw. Auslaßöffnung über einen zeichnerisch lediglich angedeuteten, üblichen Schraubverschluß 6 bzw. 7 erfolgt.The
Im Inneren der Längsausrichtung 8 befindet sich ein Resonator 9, welcher die Ultraschallquelle beinhaltet.In the interior of the
Der Resonator 9 umfaßt einen Resonatorkörper 10, welcher aus vollmaterial z.B. Aluminium, Messing, Kupfer oder Edelstahl besteht und an der stromabwärts befindlichen Stirnseite eine Ausnehmung 24 aufweist, in der eine Ultraschallquelle in Form einer piezoelektrischen Scheibe 14 angeordnet ist.The resonator 9 comprises a
Die Ausnehmung 24 ist durch den Resonatordeckel 11 verschlossen.The
Der Resonator 9 besitzt an seinen Stirnseiten aus flexiblen Material bestehende Auflagevorsprünge 22, welche in entsprechende Ausnehmungen 25 an der jeweiligen Stirnseite der Längsausnehmung 8 eingreifen. Im übrigen ist zwischen der Innenseite der Längsausnehmung 8 und dem Resonator 9 ein umlaufender Spalt 23 vorgesehen, welcher im Bereich des Einschnitts 12 (stromaufwärts) bzw. des stromabwärts befindlichen Einschnitts 13 vergrößert ist.The resonator 9 has on its end faces made of flexible
Im Bereich des Spalts 23 sowie der beiden Einschnitte 12 und 13 befindet sich Wasser des Rohrleitungssystems.In the area of the
Die piezoelektrische Scheibe 14 ist innerhalb der Vorrichtung 1 derart angeordnet, daß ihre Normale parallel zur Flußrichtung des Wassers im Rohrleitungssystem verläuft, so daß die Hauptrichtung der Ultraschallschwingung der piezoelektrischen Scheibe 14 in Längsrichtung des Rohrleitungssystems erfolgt. Die Ultraschallwellen werden demnach von der piezoelektrischen Scheibe 14 über den Resonator 9 auf das in den Einschnitten 12 bzw. 13 vorliegende Wasser in das Rohrleitungssystem abgegeben. An den Hauptflächen der piezoelektrischen Scheibe 14 ist jeweils eine Kontaktplatte 30, 31 mit Verbindungsleitungen vorgesehen.The
Innerhalb der ringförmigen Ausnehmung 15 ist eine weitere Ultraschallquelle in Form eines piezoelektrischen Halbrings bzw. Halbmantels vorgesehen, welcher seine Schwingungsenergie bevorzugt senkrecht zur Längsachse des Rohrleitungssystems abgibt.A further ultrasound source in the form of a piezoelectric half ring or half jacket is provided within the
Zur Überwachung der durch den Betrieb der Ultraschall quelle erzeugten Temperatur ist ein Temperatursensor 19 beispielsweise in Form eines Thermoelements unmittelbar an der piezoelektrischen Scheibe 14 in der Ausnehmung 24 am Resonator 9 vorgesehen. Der Temperatursensor 19 steht mit einer nicht dargestellten Steuerung in Verbindung und bewirkt bei Überschreiten einer Grenztemperatur (z.B. 35° C) eine automatische Abschaltung des Betriebs der erfindungsgemäßen Vorrichtung 1. Um die in der Figur angedeuteten Verbindungsleitungen von Temperatursensor 19 sowie piezoelektrischer Scheibe 14 nach außen führen zu können, ist im Resonator 9 eine Durchführung 21 vorgesehen, welche unter Zwischenschaltung einer Dichtung 27 im Bereich des Spalts 23 in eine Gehäusedurchführung in Form einer Bohrung 20 übergeht. An der Außenseite ist ein geeigneter Anschluß 29 vorgesehen, um die Verbindungsleitungen mit den betreffenden Bauelementen verbinden zu können.To monitor the temperature generated by the operation of the ultrasound source, a
Desweiteren ist eine nicht dargestellte Steuerung vorgesehen, welche die Einstellung der Schwingungsfrequenz und/oder Schwingungsenergie der jeweiligen Ultraschall-quellen gewährleistet.Furthermore, a control, not shown, is provided which ensures the setting of the oscillation frequency and / or oscillation energy of the respective ultrasound sources.
Die auf das Rohrleitungssystem aufzubringende Ultraschallschwingung umfaßt eine Grundschwingung von beispielsweise 25 Hz mit einer Oberschwingung von beispielsweise 45 kHz. Diese Ultraschallschwingung kann je nach den Anforderungen intermittierend, d.h. in bestimmten Zeitabständen auf das Rohrleitungssystem aufgebracht werden. Ferner kann Ultraschallschwingungsenergie mit alternierender Schwingungsfrequenz und/oder Schwingungsenergie auf das Rohrleitungssystem einwirken. Dies läßt sich durch elektronische Mittel in einfacher Weise gewährleisten.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. Furthermore, 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.
Um den Reinigungseffekt noch weiter zu erhöhen, kann anstelle der in der ringförmigen Ausnehmung 15 vorgesehenen Ultraschallquelle 16, welche ihre Schwingungsenergie über das Gehäuse 3 auf das Rohrleitungssystem 2 abgibt, eine Ultraschallquelle 16' Vorgesehen sein, die unmittelbar an der Außenwandung des Rohrleitungssystems bzw. Wasserleitungsrohrs 2 angeordnet ist und denselben Zweck erfüllt.In order to further increase the cleaning effect, instead of the
- 11
- erfindungsgemäße Vorrichtungdevice according to the invention
- 22nd
- WasserleitungsrohrWater pipe
- 33rd
- Gehäusecasing
- 44th
- EinlaßöffnungInlet opening
- 55
- AuslaßöffnungOutlet opening
- 66
- SchraubverschlußScrew cap
- 77
- SchraubverschlußScrew cap
- 88th
- LängsausnehmungLongitudinal recess
- 99
- ResonatorResonator
- 1010th
- ResonatorkörperResonator body
- 1111
- ResonatordeckelResonator cover
- 1212th
- Einschnitt stromaufwärtsIncision upstream
- 1313
- Einschnitt stromabwärtsIncision downstream
- 1414
- piezoelektrischer Geber (Scheibe)piezoelectric encoder (disk)
- 1515
- ringförmige Ausnehmungannular recess
- 1616
- piezoelektrischer Geber (Ring)piezoelectric encoder (ring)
- 16'16 '
- piezoelektrischer Geber (Ring)piezoelectric encoder (ring)
- 1717th
- SchraubverbindungScrew connection
- 1818th
- Dichtungpoetry
- 1919th
- TemperatursensorTemperature sensor
- 2020th
- Bohrungdrilling
- 2121
- Durchführung ResonatorImplementation of the resonator
- 2222
- AuflagenvorsprungEdition lead
- 2323
- Spaltgap
- 2424th
- Ausnehmung am ResonatorRecess on the resonator
- 2525th
- AusnehmungRecess
- 2626
- SchraubverbindungScrew connection
- 2727
- Dichtungpoetry
- 2828
- Dichtungpoetry
- 2929
- AnschlußConnection
- 3030th
- KontaktplatteContact plate
- 3131
- KontaktplatteContact plate
Claims (17)
- Device for removing deposits, preferably metal oxide (eg. rust) or calcium deposits in a pipeline system, in particular a water pipeline system, and/or for the prevention of corresponding deposits having at least one ultrasound source accommodated in a casing, wherein the casing of the device can be integrated into the pipeline system and is connected thereto, characterised in that the casing (3) is integrated into the pipeline system, in the direction which is longitudinal thereto, by means of inlet and outlet apertures (4 and 5), the ultrasound system is surrounded by the water of the pipeline system and the ultrasound source is arranged and formed inside the casing (3) in such a manner that it discharges its vibration energy onto the water in the direction which is longitudinal to the pipeline system.
- Device according to Claim 1, characterised in that the ultrasound source is located in a resonator (9), which radiates the vibrations generated by the ultrasound source, wherein the resonator (9) has contact with the water and is surrounded by a two-part casing (3) which can be connected to the pipeline system.
- Device according to Claim 2, characterised in that the resonator (9) comprises a resonator body (10) of solid material with a cover (11) and the ultrasound source is disposed and/or formed in a recess (24) of the resonator body (10) in such a manner that the ultrasound vibrations are discharged in the longitudinal direction of the resonator (9).
- Device according to any one of Claims 2 or 3, characterised in that there is provided a casing (3) which consists of two parts which may be connected to one another in a sealing manner and which comprises a longitudinal recess (8) to accommodate the resonator (9), wherein the resonator (9) has contact with the water with at least one of its end faces.
- Device according to one of Claims 2 to 4, characterised in that the resonator (9) is provided with supporting projections (22) which engage on an inner edge of the casing (3) and, furthermore, there is a peripheral slot between the casing (3) and the resonator (9), the effect of which is that the resonator (9) is completely surrounded by water except for the surface of bearing projections (22).
- Device according to Claim 5, characterised in that the bearing projections consist of flexible material.
- Device according to any one of Claims 1 to 6, characterised in that there is provided at least one further ultrasound source, which discharges vibrations at an angle to or perpendicular to the longitudinal axis of the casing (3).
- Device according to Claims 7 and any one of Claims 2 to 6, characterised in that the casing (3) comprises an annular recess (15), in which there is disposed an annular or semi-annular ultrasound source, which surrounds the resonator (9) at least in part.
- Device according to at least one of Claims 1 to 8, characterised in that an annular or semiannular ultrasound source (16') is disposed directly on the outer side of the pipe wall of the pipeline system and discharges its vibration directly onto the pipeline system, either at an angle to or perpendicular to the longitudinal axis of the latter.
- Device according to any one of Claims 2 to 9, characterised in that the ultrasound source, which is disposed inside the resonator (9) and radiates in the longitudinal direction of the casing (3) is disc-shaped.
- Device according to any one of Claims 1 to 10, characterised in that there is provided an electronic control for the adjustment and/or alteration of the vibration amplitude and/or vibration frequency.
- Device according to any one of Claims 1 to 11, characterised in that a temperature sensor (19) is provided in the resonator (9).
- Device according to any one of Claims 1 to 6, characterised in that the radiation of the vibration energy is performed on one side, in the water flow direction.
- Device according to one of Claims 1 to 6, characterised in that the radiation of the vibration energy is performed on both sides, in the longitudinal direction of the pipeline system.
- Device according to any one of the Claims 1 to 14, characterised in that discharge of the ultrasound vibrations into the pipeline system is, in each case, performed at predetermined time intervals, i.e. intermittently.
- Device according to any one of Claims 1 to 15, characterised in that the discharge of ultrasound vibrations into the pipeline system is, in each case, performed with alternating vibration frequencies.
- Device according to Claims 1 to 16, characterised in that the discharge of ultrasound vibrations into the pipeline system is, in each case, performed with a plurality of superposed vibration frequencies.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4129927 | 1991-09-10 | ||
| DE4129927A DE4129927A1 (en) | 1991-09-10 | 1991-09-10 | METHOD AND DEVICE FOR REMOVING DEPOSITS, PREFERABLY METAL OXIDE (e.g. RUST) OR LIME DEPOSITS IN A PIPING SYSTEM, AND USE OF ULTRASONIC TO CLEAN AN INSTALLED PIPING SYSTEM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0531902A1 EP0531902A1 (en) | 1993-03-17 |
| EP0531902B1 true EP0531902B1 (en) | 1997-01-08 |
Family
ID=6440194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92115173A Expired - Lifetime EP0531902B1 (en) | 1991-09-10 | 1992-09-04 | Apparatus for removing deposits, especially metal oxide (e.g. rust) or scale, in a pipeline system |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0531902B1 (en) |
| AT (1) | ATE147294T1 (en) |
| CZ (1) | CZ278192A3 (en) |
| DE (2) | DE4129927A1 (en) |
| SK (1) | SK278192A3 (en) |
Families Citing this family (10)
| 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 (en) * | 1994-11-03 | 2002-02-21 | Messer Griesheim Gmbh | Process for cleaning the inside of gas cylinders |
| DE19711135C2 (en) * | 1997-03-07 | 1999-09-09 | Buckup | Device and method for cleaning, regenerating and restoring deep wells and boreholes |
| DE19714665C1 (en) * | 1997-04-09 | 1998-11-12 | Fraunhofer Ges Forschung | Removal and prevention device for ultrasonic depositions in heat exchangers |
| US6227215B1 (en) * | 1999-02-23 | 2001-05-08 | Yasumasa Akazawa | Piping cleaning device |
| DE102012018740B4 (en) | 2012-09-18 | 2016-03-03 | Reinhard Gerasch | Apparatus and method for ultrasonic energy generation by current pulses in the wide Leistungsunsbereich and with high efficiency |
| CN105855238B (en) * | 2016-06-29 | 2018-02-27 | 田禹 | Ultrasonic wave pipe-line system |
| CN108480326B (en) * | 2018-04-08 | 2023-05-05 | 华北电力大学（保定） | Pneumatic conveying pipeline dredging device based on inverse piezoelectric effect |
| CN110479693A (en) * | 2019-08-15 | 2019-11-22 | 安徽省矿业机电装备有限责任公司 | A kind of fluid-through tube bore area treatment process |
| CN112850453B (en) * | 2021-01-06 | 2023-11-10 | 义乌市双江湖开发集团有限公司 | Assembled integral type building composite floor slab assembling stable hoisting system |
Family Cites Families (7)
| 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 (en) * | 1988-11-22 | 1998-12-09 | 本多電子株式会社 | Multi-frequency ultrasonic cleaning method and cleaning apparatus |
| DE3843110C1 (en) * | 1988-12-21 | 1990-02-22 | Gruenbeck Wasseraufbereitung Gmbh, 8884 Hoechstaedt, De |
-
1991
- 1991-09-10 DE DE4129927A patent/DE4129927A1/en active Granted
-
1992
- 1992-09-04 EP EP92115173A patent/EP0531902B1/en not_active Expired - Lifetime
- 1992-09-04 AT AT92115173T patent/ATE147294T1/en not_active IP Right Cessation
- 1992-09-04 DE DE59207834T patent/DE59207834D1/en not_active Expired - Fee Related
- 1992-09-09 CZ CS922781A patent/CZ278192A3/en unknown
- 1992-09-09 SK SK2781-92A patent/SK278192A3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SK278192A3 (en) | 1993-11-10 |
| CZ278192A3 (en) | 1993-03-17 |
| DE59207834D1 (en) | 1997-02-20 |
| ATE147294T1 (en) | 1997-01-15 |
| EP0531902A1 (en) | 1993-03-17 |
| DE4129927C2 (en) | 1993-09-02 |
| DE4129927A1 (en) | 1993-03-18 |
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