• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Ultrasonic cleaning system to contribute to osmosis, ultrafiltration and nanofiltration processes 100% chemical free. The present invention refers to an ultrasonic cleaning system for osmosis membranes, as well as that of other filtering media such as ultrafiltration or nanofiltration, without displacement of the transducers, nor their installation inside the pressure vessels or housings. The system makes it possible to keep the interior of the pressure vessels and housings clean, as well as the membranes and filters that can be housed inside, without the need to add chemicals during the process. The system also allows this work to be carried out by clamping and fixing various piezoelectric transducers (for example ceramic) on the outside of the pressure vessels or filter media housings and the use of a modulation frequency generated by drivers and included, for informational purposes but not limited, between 20kHz and 40kHz. The transducers remain in a fixed position on the outer surface of the pressure vessels or housings and without displacement on the surface of these. To avoid long-lasting standing waves that could damage the membranes or filter media, instead of moving or displacing the transducer on the surface of the pressure tubes or housings, what is done is to create an automatic on and off frequency in chain of the different transducers to simulate the effect of a displacement of these on the surface of the pressure vessels or housings. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2803954A1
    申请号:ES201930693
    申请日:2019-07-26
    公开日:2021-02-01
    发明作者:Izquierdo Juan Carmelo Suarez
    申请人:Izquierdo Juan Carmelo Suarez；
    IPC主号:
    专利说明:

    [0001] SYSTEM OF L IM P IE Z A U LTRASONIC FOR R A C O N T R IB U GO TO OSMOSIS PROCESSES, U LT R A F IL T R A T IO N AND N AN OFILT RATION 100% L IB R E DE
    [0003] The present invention refers to an ultrasonic cleaning system for osmosis membranes, as well as that of other filtering media such as ultrafiltration or nanofiltration, without displacement of the transducers, or their installation inside the pressure vessels or housings. The system makes it possible to keep the inside of the pressure vessels and housings clean, as well as the membranes and filters that can be housed inside, without the need to add chemical products during the process. The system also allows this work to be carried out by clamping and fixing various piezoelectric transducers (for example ceramic) on the outside of the pressure vessels or filter media housings and the use of a modulation frequency generated by drivers and understood, for informational purposes but not limited, between 20kHz and 40kHz. The transducers remain in a fixed position on the outer surface of the pressure vessels or housings and without displacement on the surface of these. To avoid long-lasting standing waves that could damage the membranes or filter media, instead of moving or displacing the transducer on the surface of the pressure tubes or housings, what is done is to create an automatic on and off frequency in chain of the different transducers to simulate the effect of a displacement of these on the surface of the pressure vessels or housings.
    [0007] Traditional osmosis, ultrafiltration or nanofiltration plants and processes face significant challenges when it comes to protecting them from biological or organic contamination, fouling, as well as effectively cleaning them without causing damage to membranes, filter media or other parts of the system.
    [0008] Until now, all the plants and osmosis, ultrafiltration and nanofiltration systems that are marketed, require for their cleaning the addiction of chemical products in one or more of the phases of the process.
    [0010] There are antecedents and studies of ultrasonic cleaning of osmosis and ultrafiltration membranes that use as a cleaning supplement, some chemical products, which according to these studies and experiences, help a more effective cleaning. On the other hand, ultrasonic systems have been developed for cleaning membranes, not associated with chemical products, but which have the disadvantage that they require the displacement of the transducers along the pressure vessels, or they incorporate the transducers in inside these vessels, or in the membranes themselves. In the first case, the movement requires a complex system to move the transducer along the pressure vessel, in the second case, the incorporation of the transducers inside the pressure vessels and associated with the pressure vessels. membranes, entails exposing them to the dangers of water leaks and the hydraulic pressures necessary for the osmosis process. In either case, the preventive and corrective control and maintenance tasks are complex.
    [0014] The present invention refers to an innovative and unique ultrasonic cleaning system, which does not require the movement of the transducers, nor their internal location in the pressure vessels or housings to achieve the cleaning of the osmosis membranes, as well as other of filter media such as ultrafiltration or nanofiltration, .. The system is especially suitable, although not limiting, as a complement to 100% chemical-free reverse osmosis processes, where there is a control of the risk of Biofouling through the elimination of EPS, among other biological risk factors and mineral fouling by delaying the nucleation of fouling minerals present in the water or liquid to be treated. The system we propose does not require a displacement of the transducers or incorporation of these into the pressure vessels or housings, which greatly facilitates the work of control and preventive and corrective maintenance, while improving access to the system and its control, keeping the interior of the pressure vessels clean. pressure, as well as the membranes and filters that can be accommodated inside without the need to add chemicals during the process. The system allows this work to be carried out by clamping and fixing various piezoelectric transducers (for example ceramic) on the outside of the pressure vessels or filter media housings and the use of a modulation frequency generated by drivers and included by way of example, but not limited to, between 20kHz and 40kHz. The transducers remain in a fixed position on the outer surface of the pressure vessels or filter housings and without displacement on the filter surface. To avoid standing waves that could damage the membranes, instead of moving the transducer along the pressure vessels or inserting them inside them, what is done is to create an automatic frequency of activation and deactivation in chain of the different transducers to simulate the movement of these on the surface of the pressure vessels. After activating the transducers and once the dirt has been separated from the pores of the membranes or the filtering media, these will be washed using a flux of water or another liquid that allows the dirt to be dragged out of the system for subsequent treatment and discharge. . The exact number of piezoelectrics and their final distribution on the surface of the pressure vessels or casing are established according to the characteristics and needs of each project.
    [0018] Figure 1.- Shows a general front view of the distribution of the devices and auxiliary elements that constitute the system object of the invention applied to a plant or osmosis, ultrafiltration or nanofiltration system. Transducer (1); Pressure Vessel or Housing (2); Transducer - Driver Connections (3); Driver, Modulator and Power Supply of the Transducers (4); Membranes - Filter Media (5). Fig.1-A General view of the exterior of a pressure tube with different transducers on its surface, as well as the driver; Fig-1-B Sectional view of a pressure tube with different transducers on its surface; Fig-1-C Section view of a pressure tube with different transducers on its surface, where you can see the osmosis membranes - filtering media and that there are no transducers installed inside the tubes, nor are they directly associated with the membranes - filter media.
    [0020] Figure 2.- Shows a front view of the distribution of circular transducers that surround the pressure vessel or housing, as well as the devices and auxiliary elements that constitute the system object of the invention applied to an osmosis, ultrafiltration or nanofiltration system. Transducer (1); Pressure Vessel or Housing (2); Transducer - Driver Connections (3); Driver, Modulator and Power Supply of the Transducers (4).
    [0024] In a preferred embodiment of the invention (FIG. 1), the ultrasonic cleaning transducers (1) will be located on the external surface of the pressure vessels or housings (2). The signal input of the transducers (3) will be joined to the output of the drivers and control systems (4) that will allow, among other functionalities, to modulate the frequencies and the total or partial activation and deactivation processes, to generate the simulation of displacement of the piezoelectric transducers on the surface of the pressure vessels or housings and clean the membranes (5).
    [0026] In a preferred embodiment of the invention (FIG. 2), the ultrasonic cleaning transducers attached to the surface will have a circular shape (1) and will surround the pressure vessels or housings (2). The signal input of the transducers (3) will be linked to the output of the drivers and control systems (4) that will allow, among other functionalities, to modulate the frequencies and the activation and deactivation processes total or partial to generate the simulation of displacement of the piezoelectric transducers on the surface of the pressure vessels or housings.
    权利要求:
    Claims (3)
    [1]
    1. Ultrasonic membrane cleaning system in osmosis processes, where there is no displacement of the transducers on the surface of the pressure vessels, nor are the transducers located inside said pressure vessels or on the membranes. The movement along the pressure vessels is simulated by means of the automatic and chain activation and deactivation of the different piezoelectric transducers attached to the surface of the vessels, in order to avoid standing waves of long duration.
    [2]
    2. Ultrasonic membrane cleaning system in osmosis processes according to claim 1, where the different piezoelectric transducers fixed to the surface will have a circular shape and will surround the pressure vessels.
    [3]
    3. Ultrasonic filter media cleaning system in ultrafiltration or nanofiltration processes, where there is no displacement of the transducers on the surface of the housings, nor are the transducers located inside said housings or vessels. The movement on the surface of the housings and pressure vessels is simulated, by means of the automatic and chain activation and deactivation of the different piezoelectric transducers attached to the surface of the housings, in order to avoid long-term standing waves.
    类似技术:
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    同族专利:
    公开号 | 公开日
    ES2803954B2|2021-11-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4253962A|1979-12-12|1981-03-03|Thompson John R|Non-destructive vibratory cleaning system for reverse osmosis and ultra filtration membranes|
    DE19606420C1|1996-02-21|1997-07-17|Iss Gradewald Ind Schiffs Serv|Filter regeneration device, especially for filter in sewage plants|
    CN2635198Y|2003-09-09|2004-08-25|郭孝武|Ultrasonic strengthened ultrafiltering membrane separator|
    CN1701841A|2004-11-23|2005-11-30|燕山大学|Ultrasonic wave automatic cleaning technology for hollow fiber separation membrane|
    WO2014073947A1|2012-11-07|2014-05-15|Lembaga Getah Malaysia|An ultrafiltration system for concentration of latices|
    法律状态:
    2021-02-01| BA2A| Patent application published|Ref document number: 2803954 Country of ref document: ES Kind code of ref document: A1 Effective date: 20210201 |
    2021-11-03| FG2A| Definitive protection|Ref document number: 2803954 Country of ref document: ES Kind code of ref document: B2 Effective date: 20211103 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201930693A|ES2803954B2|2019-07-26|2019-07-26|ULTRASONIC SYSTEM FOR CLEANING FILTER MEDIA IN OSMOSIS, ULTRAFILTRATION OR NANOFILTRATION PROCESSES|ES201930693A| ES2803954B2|2019-07-26|2019-07-26|ULTRASONIC SYSTEM FOR CLEANING FILTER MEDIA IN OSMOSIS, ULTRAFILTRATION OR NANOFILTRATION PROCESSES|
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