EP2624944A1 - Pompe d'hydrophone, conteneur et procédé s'y rapportant - Google Patents

Pompe d'hydrophone, conteneur et procédé s'y rapportant

Info

Publication number
EP2624944A1
EP2624944A1 EP11770895.8A EP11770895A EP2624944A1 EP 2624944 A1 EP2624944 A1 EP 2624944A1 EP 11770895 A EP11770895 A EP 11770895A EP 2624944 A1 EP2624944 A1 EP 2624944A1
Authority
EP
European Patent Office
Prior art keywords
pump
hydrophone
reactor chamber
fluid
piezo
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.)
Withdrawn
Application number
EP11770895.8A
Other languages
German (de)
English (en)
Inventor
Johannes Kuipers
Doekle Reinder Yntema
Simon Marinus Bakker
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.)
Stichting Wetsus Centre of Excellence for Sustainable Water Technology
Original Assignee
Stichting Wetsus Centre of Excellence for Sustainable Water Technology
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 Stichting Wetsus Centre of Excellence for Sustainable Water Technology filed Critical Stichting Wetsus Centre of Excellence for Sustainable Water Technology
Publication of EP2624944A1 publication Critical patent/EP2624944A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection

Definitions

  • the invention relates to a hydrophone pump.
  • a hydrophone pump more particularly relates to mixing, accelerating reaction processes and/or treating fluid.
  • An object of the invention is to obviate the above stated problems and to achieve an effective and efficient treatment, reaction acceleration and/or mixing of a fluid.
  • the hydrophone pump comprising:
  • a hydrophone pump according to the invention is an apparatus which can be placed in a fluid, such as in an aqueous flow.
  • a pump according to the invention is particularly suitable for setting the fluid into motion and/or refreshing it.
  • a voltage is applied to the piezo-element the volume of the reaction chamber is changed, resulting in an inflow or outflow through the inlet and outlet, which in an advantageous embodiment are combined.
  • a fluid suitable for the hydrophone pump according to the invention is preferably an aqueous flow, for instance a waste water or process water flow.
  • a flow can also be a flow for purifying, for instance for drinking-water or swimming water.
  • the fluid is guided outside again via the inlet, which at that moment acts as outlet. Mixing occurs here in the fluid outside the pump. It is also possible to provide a separate outlet. It is likewise further possible to provide a plurality of inlets and/or outlets per reactor chamber.
  • the desired movements of admitting and discharging the fluid into and out of the reactor chamber are realized by providing a drivable piezo-element which is arranged on at least one side of the reactor chamber.
  • a piezo-element makes use of piezo-electric principles in that a crystal is present which, by means of an applied voltage, generates a movement of the element .
  • the fluid is hereby treated in its entirety.
  • treatment is otherwise also understood to mean measuring and analysis of the fluid.
  • a treatment can be readily monitored and/or controlled when it is performed in a reactor chamber. The reliability of the overall process is hereby increased.
  • Through use of the piezo-element it is further possible to generate cavitation in the reactor chamber. Waves are preferably produced for this purpose such that cavitation occurs in the fluid for treatment.
  • the ultrasonic sound waves create vacuum bubbles in the fluid. These bubbles implode and this results in a very high pressure and temperature locally. Micro-organisms can be killed as a result.
  • organic micro-contaminants such as dioxane, MBTE, phenylbenzene, medicine residues and hormones, to be decomposed or otherwise rendered harmless.
  • the piezo-element is preferably embodied as a piezo disc forming a side wall of the reactor chamber in the hydrophone pump.
  • the energy required by the piezo-element can be supplied in various ways.
  • One of the possibilities herefor is the use of a fixed power cable provided on the hydrophone pump according to the invention.
  • a voltage is here
  • the voltage can also be realized by for instance a capacitive coupling to an electric field as well as by generating such a desired voltage from the received radio waves using an
  • the housing is provided with inductive means for driving the piezo-element.
  • a coupling can be realized to a magnetic field for the purpose of realizing a voltage for the piezo-element in this way.
  • a coil is preferably provided with which the desired voltage can be realized. This achieves that no wiring is needed for the hydrophone pump and nearby equipment. This means that the hydrophone pump can move freely in a fluid, such as in an aqueous flow. The placing of the hydrophone pump in the fluid is hereby extremely simple. This is advantageous, among other
  • the hydrophone pump preferably has a housing with a volume of a maximum of 1 cm 3 , preferably a maximum of 0.25 cirr and most preferably a maximum of 0.1 cm 3 .
  • a type of micro-hydrophone pump with micro-reactor is realized by providing a hydrophone pump with such relatively small dimensions. It is hereby possible to provide one such hydrophone pump in narrow passages such as blood vessels. It is also possible to provide a large number of hydrophone pumps according to the invention in a larger basin such as a bath or conduit in order to there realize the desired effect on the fluid.
  • the housing comprises a plastic.
  • Providing a plastic such as PVC or teflon creates a light and inexpensive housing.
  • the weight of the hydrophone pump can also be adapted to the fluid to allow it for instance to float therein.
  • a possibly adverse effect of the fluid on the housing is prevented through the correct choice of material. It is otherwise also possible to use for instance steel as housing in the case use is made of ultrasonic sound in combination with the hydrophone pump according to the invention.
  • the amplitude and/or frequency of the piezo- element are adjustable.
  • Providing adjustable and preferably controllable amplitude (s) and/or frequenc ⁇ /ies) for the piezo-element makes it possible to control the process conditions in the reactor chamber so as to cause for instance cavitation to occur in this chamber.
  • the conditions can take into account the specific state of the fluid situated in and close to the pump.
  • the pump further comprises one or more LEDs.
  • the fluid can be treated by providing one or more LEDs.
  • Use is particularly made here of so-called UV-LEDs to enable UV treatment of the fluid therewith.
  • treatment is particularly understood here to mean disinfecting of the fluid.
  • the pump preferably comprises second inductive means for the LED.
  • LEDs are preferably placed on the inner wall of this inlet/outlet.
  • Alternative treatment methods make use of for instance an ultrasonic sound source which can be provided in similar manner as alternative to, or optionally in combination with, the UV-LEDs.
  • the pump comprises one or more sensor means.
  • an analysis can be made of the fluid in which the hydrophone pump is arranged. It is possible here to envisage, among other actions, measuring the turbidity, acidity, oxygen and/or conductivity of the fluid. In a possible embodiment
  • the sensor means comprise a LED on one side of the reactor chamber and a photo diode on the opposite side of the reactor chamber, whereby a measurement of the fluid in the reactor chamber is possible.
  • the behaviour of the piezo-element can also be used as sensor. It is hereby possible for instance to determine properties of the fluid at a defined voltage on the basis of the behaviour of the piezo-element.
  • the sensor means preferably also comprise a data transmitter.
  • Providing a data transmitter realizes that measurement data can be transmitted to a central processing unit. It is for instance also possible, on the basis of the measurements, to modify the amplitude and/or frequencies being used. This results in a control system which takes account online of the specific conditions of the fluid.
  • the data transmitter preferably takes a wireless form using an inductive system or a transmission system. Other data transmitters are otherwise also possible.
  • the inlet to the reactor chamber is a lengthened inlet.
  • the flow resulting from the hydrophone pump according to the invention is influenced in the desired manner.
  • the outflow takes place substantially in a direction perpendicularly of the outflow opening of the pump.
  • the inflow is on the other hand drawn in from all sides of the opening. This further enhances the mixing.
  • a further effect achieved with this lengthened inlet is that it is possible here to provide additional components. It is possible here to envisage the above stated UV-LEDs, optionally in
  • the housing comprises more than one reactor chamber.
  • An effective pump is realized by providing more than one reactor chamber.
  • One piezo-element preferably suffices here at the boundary surface between the two reactor chambers.
  • a separate inlet to the reactor chambers is preferably provided here in opposite sides of the segmented pump .
  • the invention further relates to a container provided with at least one hydrophone pump as described above.
  • Such a container is for instance a swimming pool, aquarium, pipe or conduit for process water, and a blood vessel.
  • a hydrophone pump is provided in the
  • a hydrophone pump provided only with a piezo-element as first type and a second type embodied with for instance a UV-LED. Combinations with sound sources on the hydrophone pump are also possible.
  • These different types can be placed in random manner in the container, wherein each type has its own effect on the fluid.
  • the effect of the pump elements according to the invention can hereby be adapted to the specific desired functions.
  • the invention further also relates to a method for mixing, treating and/or accelerating process reactions of a fluid, comprising of providing and driving during use one or more hydrophone pumps as described above.
  • FIG. 1A shows a view of a pump according to the invention
  • figure IB shows a view of a container in which a number of pumps according to figure 1A are provided.
  • a hydrophone pump 2 (figure 1A) comprises a plastic housing 4 in which a reactor space 6 is provided. Fluid can flow in and flow out of reactor space 6 via opening 8 and channel 10. Provided opposite opening 8 is a piezo disc 12 with which the desired volume changes of reactor space 6 are realized.
  • a container 13 (figure IB) comprises a space 14 in which a liquid 16 is present. Liquid 16 enters container 14 via inlet 18 and leaves it again via outlet 20. A number of pumps 2 are provided in space 14 for interaction with liquid 16.
  • a liquid can be treated by providing container 13 with a number of pumps 2.
  • the liquid is carried for this purpose into the vicinity of the pump, or pump 2 is placed in liquid 16 provided in space 14 of container 13.
  • By activating piezo disc 12 a change takes place in the volume of reactor chamber 6 in housing 4 of pump 2. Due to the changing volume of chamber 6 liquid 16 will flow in or out via opening 8.
  • In the reactor chamber a further mixing takes place in addition to the mixing realized in space 14 of container 13.
  • a disinfection of the liquid is realized in reactor chamber 16.
  • a coil 24 is placed round housing 4. This provides piezo disc 12 with a voltage.
  • pump 22 is further provided with a number of LEDs 26 placed on the inner side of channel 10.
  • a second coil 28 is provided on the outer side of channel 10 to thereby enable power supply to LEDs 26.
  • a sensor 30 Further provided in the shown embodiment on the inner side of reactor chamber 6 on a first side is a sensor 30 which emits a signal which is received to greater or lesser degree at diode 32 provided on the opposite side of reactor space 6. A measurement of for instance the turbidity can be in this way be performed. The measurement can then be sent to a processing unit using transmitting means 34.
  • a further alternative embodiment of pump 36 consist of a combined element with a first part 38 and a second part 40.
  • First part 38 has a first reactor chamber 42 while second part 40 has a second reactor chamber 44.
  • piezo disc 12 forms the boundary between chambers 42, 44.
  • the feed to first chamber 42 takes place via opening 46 in first part 38.
  • the feed and discharge of liquid to second chamber 44 takes place via second opening 48.
  • hydrophone pump 2 can be elucidated by placing thereof in a container 13 under water to which particles have been added. The particles are clearly transported through the liquid through activation of the piezo disc. The experiment hereby demonstrates that a mixing occurs. Further demonstrated here is that treatment of these particles, for instance the micro-organisms, in the reactor chamber is also a possibility. Use was made in the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating Pumps (AREA)

Abstract

La présente invention concerne une pompe d'hydrophone, et un conteneur et un procédé s'y rapportant. La pompe d'hydrophone comprend : - un logement pourvu d'une chambre de réacteur ; - une entrée destinée à l'admission et à l'évacuation de fluide dans et hors de la chambre de réacteur ; et - un élément piézo installé de manière dirigeable sur au moins un côté de la chambre de réacteur.
EP11770895.8A 2010-10-07 2011-10-07 Pompe d'hydrophone, conteneur et procédé s'y rapportant Withdrawn EP2624944A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2005474A NL2005474C2 (nl) 2010-10-07 2010-10-07 Hydrofone pomp, houder en werkwijze daarvoor.
PCT/NL2011/050683 WO2012047106A1 (fr) 2010-10-07 2011-10-07 Pompe d'hydrophone, conteneur et procédé s'y rapportant

Publications (1)

Publication Number Publication Date
EP2624944A1 true EP2624944A1 (fr) 2013-08-14

Family

ID=43921138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11770895.8A Withdrawn EP2624944A1 (fr) 2010-10-07 2011-10-07 Pompe d'hydrophone, conteneur et procédé s'y rapportant

Country Status (3)

Country Link
EP (1) EP2624944A1 (fr)
NL (1) NL2005474C2 (fr)
WO (1) WO2012047106A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032438A (en) * 1975-09-19 1977-06-28 Ocean Ecology Ltd. Method and apparatus for ultrasonically removing contaminants from water
DE19614240C1 (de) * 1996-04-10 1997-06-05 Ppv Verwaltungs Ag Ultraschallvorrichtung zum Entkeimen von Flüssigkeiten
US6777245B2 (en) * 2000-06-09 2004-08-17 Advalytix Ag Process for manipulation of small quantities of matter
US8038337B2 (en) * 2003-02-27 2011-10-18 Beckman Coulter, Inc. Method and device for blending small quantities of liquid in microcavities
JP2005319407A (ja) * 2004-05-10 2005-11-17 Hitachi Ltd 圧電デバイスを用いた機器
DE102004051394B4 (de) * 2004-10-21 2006-08-17 Advalytix Ag Verfahren zur Bewegung von kleinen Flüssigkeitsmengen in Mikrokanälen und Mikrokanalsystem

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012047106A1 *

Also Published As

Publication number Publication date
NL2005474C2 (nl) 2012-04-11
WO2012047106A1 (fr) 2012-04-12

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