• 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:
    osmosis system and method for disinfecting osmosis system lines - a circulation pump and an electrochemical ozone generator are integrated into the permeate return line of an osmosis system, and the permeate return line is connected in the flow direction behind the circulation pump and the ozone generator through a recirculation line to the permeate supply line, where a closed circuit can be formed in which the ozonized permeate can circulate until all organic contaminants have been neutralized or decomposed by the ozone in such part of the line system. a respective valve is integrated in the recirculation line and in the permeate return line downstream of the recirculation line branch. the recirculation line valve is connected during normal operation of the osmosis system to supply connected dialysis devices while the valve on the permeate return line is open, so that excess permeate that was not obtained by the dialysis devices can flow back to the supply tank. alternatively, the permeate can also be discharged into an outlet.
    公开号:BR102012032457B1
    申请号:R102012032457-1
    申请日:2012-12-19
    公开日:2020-09-24
    发明作者:Manfred Völker
    申请人:Vivonic Gmbh；
    IPC主号:
    专利说明:

    [0001] The present invention relates to an osmosis system with which ultrapure water is preferably produced for the operation of dialysis devices. The osmosis system comprises a filter module that is subdivided by a membrane in a primary chamber and a secondary chamber, an atmosphericly ventilated supply tank in which a raw water supply line ends, a line leading from the lower end from the supply tank to the primary chamber and in which a pump is integrated, and the concentrate line that leads away from the primary chamber and preferably leads back to the supply tank, and a permeate supply line that extends from the secondary chamber of the filter module and in which at least one dialysis device is connectable by means of a branch line or secondary ring line, characterized by the fact that, in the direction of flow behind the connection of at least one device of diaphragm dialysis, an adjacent permeate return line leads back to the supply tank.
    [0002] The line system of the osmosis system must be decontaminated from time to time, as otherwise organic deposits may settle inside the lines and associated functional units, such as valves, etc., and this can be infested by germs that could be detrimental to the health of patients treated using dialysis devices. Until now, the line system of the osmosis system has been disinfected in practice with chemical agents or by hot cleaning. The hot cleaning process requires an enormous amount of energy, and when chemical cleaning agents are used, care must be taken to ensure that after decontamination there are no chemical residues remaining in the line system and its functional units.
    [0003] It is the object of the present invention to indicate an osmosis system of the type in question that allows a moderate decontamination of at least the area of the permeate line, while ensuring at the same time that no pump is damaged due to the cleaning operation.
    [0004] The object is achieved with an osmosis system comprising the characteristics of patent claim 1.
    [0005] Advantageous developments of the invention are characterized in the subsequent subclaims.
    [0006] Furthermore, the invention provides a cleaning method comprising the features of claim 7. Advantageous developments of the method are characterized in the subsequent subclaims.
    [0007] According to the invention, a circulation pump and an electrochemical ozone generator are integrated into the permeate return line of the osmosis system, and the permeate return line is connected in the flow direction behind the circulation pump and the generator. of ozone through a recirculation line to the permeate supply line, where a closed circuit can be formed in which the ozonized permeate can circulate until all organic contaminants in such part of the line system have been neutralized or decomposed by ozone. A respective valve is integrated into the recirculation line and the permeate return line downstream of the recirculation line branch. The valve on the recirculation line is closed during normal operation of the osmosis system to supply the connected dialysis devices, while the valve on the permeate return line is open, so that the excess permeate that was not obtained by the dialysis devices flow back into the supply tank. Alternatively, the permeate can also be discharged to an outlet.
    [0008] In contrast, when the valve on the permeate return line is closed and the valve on the recirculation line is open, the system is in a clean state in which the ozone generator enriches the permeate by flowing through it with ozone.
    [0009] In addition to the more, according to the invention, a permeate return line section that terminates at the permeate return line downstream of the valve there disposed branches from the permeate supply line upstream of the termination line. recirculation in the permeate supply line, and a pressure check valve is arranged in the permeate return line section.
    [0010] This has the effect that the osmosis system can continue its operation also in disinfection mode and continuously produce permeate that can flow through the permeate return line section in the supply tank of the osmosis system. When no additional permeate is required in the ozonized permeate recirculation circuit, the entire amount of fresh permeate produced during recirculation flows through the pressure check valve to the supply tank, so that in the return line section, before the valve such pressure is high so that it exceeds the closing force of the valve. Instead of such a pressure check valve, a valve can also be provided that is, for example, electrically controlled by an osmosis control device.
    [0011] The ozonated permeate circulating in the permeate recirculation circuit can, however, also be used for cleaning the line system leading to the water inlet valve of a dialysis device, with the ozonized permeate being discharged through the associated discharge line in a outlet in the rinse valve open condition. This can occur consecutively on all connected dialysis devices.
    [0012] In this case, fresh permeate, that is, permeate that has not yet been ozonated, flows into the recirculation circuit due to, otherwise, the circuit could more or less function empty, where the pump's operating capacity arranged in the recirculation circuit could be harmed. Here, the entire quantity of fresh permeate supplied flows temporarily in the recirculation circuit or, in the meantime, the necessary partial quantity, whereas the other partial quantity flows through the permeate return line section to the supply tank.
    [0013] In further detail, it is provided that an additional valve is integrated downstream after the end of the recirculation line in the permeate supply line, and that upstream of the additional valve a connecting line branches to the permeate return line, into which an additional pressure check valve is integrated. Advantageously, a flow line that leads to an outlet and into which a flow valve is integrated branches off at the end of the connection line to the permeate return line or between said end and the valve integrated in the return line of permeate.
    [0014] Consequently, the method according to the invention for disinfecting the permeate line system provides that, during a cleaning process, the permeate is supplied with ozone while observing a predetermined concentration of ozone, and the ozonized permeate circulates in the line of permeate as long as at least a partial stream of permeate arriving from the secondary chamber of the filter module can flow into the supply tank without mixing with the ozone-enriched permeate. After a pre-determined cleaning time, the ozonized permeate is rinsed at an outlet or fed to the osmosis supply tank. In the case mentioned above, the ozonated permeate that is fed to the supply tank can also disinfect the supply tank itself and, optionally, also the line leading to the filter module. Since the filter membrane can be damaged by ozone, starting from a specific concentration, it is also possible with a small amount of ozone in the liquid to clean the primary chamber of the filter module and the concentrate return line, which preferably takes back to the supply tank. For this purpose, the ozone concentration is monitored at appropriate locations in the line system. For this purpose, at least one measuring chamber is arranged in the line system to control the amount of ozone in the liquid by means of a redox potential or ozone sensors.
    [0015] According to a further proposal of the invention, the amount of ozone produced by the ozone generator can be controlled and monitored by a selected applied voltage and / or a selected current.
    [0016] The permeate line system's recirculation circuit with the aforementioned valves and the recirculation pump according to the invention can also be used to clean or disinfect that area of the osmosis system with the aid of a chemical disinfectant or with a thermal device instead of the ozone generator. In this case, the osmosis system can also continue its operation during the cleaning process and supply the permeate, where the idle of the circulation pump is prevented, and the power lines of the connected dialysis devices must be cleaned or disinfected.
    [0017] The additional details of the invention become apparent from the subsequent description and from the drawing. The only figure here is a schematic illustration of the line system of an osmosis system configuration according to the invention with the associated functional units.
    [0018] Only those components of the figure that are of importance to the present invention are described.
    [0019] The liquid is supplied via a line (1) to the osmosis system, the liquid passing via an inlet valve (2) to the supply tank (3). The liquid in the supply tank (3) is supplied via a pump (4) via a line (5) to an osmosis filter module (6), the primary chamber of which (7) is separated by a membrane (8) of the secondary chamber (9).
    [0020] The concentrate is discharged from the primary chamber (7) through a line (10) in which an acceleration (11) provides the prevailing pressure in the primary chamber (7). The concentrate can be discharged via a line (12), into which a valve (13) is integrated, at an outlet (14) or it can be returned via a concentrate return line (15) in the supply tank (3 ).
    [0021] The permeate flows out of the secondary chamber (9) through a permeate supply line (16) to the connections (17) of the dialysis devices, which, in an illustrated example, can be supplied with the permeate through a respective line. extension (19). Dialysis devices can also be powered with the aid of secondary lines, which are not shown here. Downstream of the last connection of a dialysis device, the permeate supply line (16) is followed by a permeate return line (20) which leads back to the supply tank (3).
    [0022] A circulation pump (21) and an ozone generator (22) are integrated in the permeate return line (20) in the direction of flow one after the other, the ozone generator (22) being followed by a check valve of pressure (23). Another position of the circulation pump and the ozone cell, for example, in the permeate supply line or the use of a thermal disinfectant / chemical cleaning device is also within the scope of the invention.
    [0023] A recirculation line (24) with a valve (25) disposed there connects the permeate return line (20) to the permeate supply line (16), where a recirculation circuit is formed in which the ozonized permeate can circulate.
    [0024] In the flow direction before the recirculation line (24), a permeate return line section (26) branches off from the permeate supply line (16) and a pressure check valve (27) is integrated there. ) which, during disinfection or cleaning, defines the ring pre-pressure and through which the excess permeate flows out. The permeate return line section (26) ends at the permeate return line (20) downstream of a valve (28) integrated in it.
    [0025] Downstream of the end of the recirculation line (24) on the permeate supply line (16), a connection line (29) with a pressure check valve (30) branches off and ends at the permeate return line ( 20) and leads from there as a drain line (31) with a shut-off valve (32) at the outlet (14). Downstream of the connection line (29), the permeate supply line (16) has an additional valve (33) arranged there that can be controlled by conductivity temperature measurement (34).
    [0026] The branch line (19) leads to a water inlet valve (35) of a dialysis device (18). A drain line (37) leading to an outlet and having a flushing valve (36) is branched directly before the water inlet valve (35).
    权利要求:
    Claims (9)
    [0001]
    “OSMOSIS SYSTEM” - An osmosis system comprising an osmosis system filter module (6) which is subdivided by a membrane (8) in a primary chamber (7) and a secondary chamber (9), comprising a tank of atmosphericly ventilated supply (3) where a raw water supply line ends, with a line, into which a pump (4) is integrated, leading from the lower end of the supply tank (3) to the primary chamber (7) , a concentrate line (10) leading away from the primary chamber (7), and a permeate supply line (16) extending from the secondary chamber (9), to which the permeate supply line (16) ) at least one dialysis device (18) is connectable via an extension line (17) or secondary ring line and, in addition, in the direction of flow behind at least one dialysis device (18), a line adjacent permeate return flow (20) leading back to the supply tank (3), characterized by the fact that a circulation pump (21) and an electrochemical ozone generator (22) are integrated in the permeate return line (20), that the permeate return line (20) is connected in the flow direction behind the circulation pump (21) and the ozone generator (22) through a recirculation line (24) to the permeate supply line (16), with a respective valve (25, 28) being integrated into the recirculation line (24) and in the permeate return line (20) downstream of the recirculation line branch (24), and that a section of permeate return line (25) that ends at the permeate return line (20) downstream of the valve there it branches off from the permeate supply line (16) upstream of the end of the recirculation line (24) into the permeate supply line (16), and that a pressure check valve (27) is arranged in the permeate return line section (26), so that a partial permeate stream can flow back to the tank d and supply (3).
    [0002]
    “OSMOSIS SYSTEM” - The osmosis system according to claim 1, characterized by the fact that an additional valve (33) is integrated downstream after the end of the recirculation line (24) in the permeate supply line (16 ).
    [0003]
    “OSMOSIS SYSTEM” - The osmosis system according to claim 2, characterized by the fact that, between the end of the recirculation line (24) in the permeate supply line (16) and the additional valve (33), a connection line (29) branches to the permeate return line (20) in which an additional pressure check valve (30) is integrated.
    [0004]
    "OSMOSIS SYSTEM" - The osmosis system according to claims 1 to 3, characterized by the fact that a flow line (31) leading to an outlet (14) and in which a flow valve (32) is integrated it branches off at the end of the connection line (29) in the permeate return line (20) or between said line and its valve (28).
    [0005]
    "OSMOSIS SYSTEM" - The osmosis system according to claims 1 to 4, characterized by the fact that the amount of ozone produced by the ozone generator (22) is controllable by a selected applied voltage and / or a selected current.
    [0006]
    "OSMOSIS SYSTEM" - The osmosis system according to claims 1 to 5, characterized by the fact that a measuring chamber (34) is positioned in the permeate supply line (16) or permeate return line to monitor the concentration of ozone and to control the amount of ozone in the liquid through the potential of redox or ozone sensors.
    [0007]
    “METHOD FOR DISINFECTING OSMOSIS SYSTEM LINES” - A method for disinfecting the lines of an osmosis system, characterized by the fact that, during a process of cleaning the osmosis system, the permeate is supplied with ozone while observing a concentration ozone permeate and that the ozonized permeate circulates in the permeate line (16, 20) while at least a partial permeate stream arriving from the secondary chamber (9) of the filter module (6) can flow into the supply tank (3) without mixing with the ozone-enriched permeate, and that, after a predetermined time, the ozonized permeate is rinsed at an outlet (14) or is supplied to the supply tank (3) of the osmosis system.
    [0008]
    “METHOD FOR DISINFECTING OSMOS SYSTEM LINES” - The method according to claim 7, characterized by the fact that the ozonated permeate fed to the supply tank (3) disinfects the supply tank (3) and preferably the line (5 ) leading to the filter module, the primary chamber (7) of the filter module (6), and the concentrate return line (10).
    [0009]
    “METHOD FOR DISINFECTING OSMOSIS SYSTEM LINES” - The method according to claims 7 and 8, characterized by the fact that the permeate / ozone mixture is passed to the water inlet valve (35) of a dialysis device (18) and in the open state of a flushing valve (36) it is discharged through the associated flow line (37), while a partial flow of permeate out of the secondary chamber (9) flows into the permeate supply line (16) .
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    同族专利:
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    法律状态:
    2014-12-16| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|
    2018-03-27| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2018-08-21| B25A| Requested transfer of rights approved|Owner name: VIVONIC GMBH (DE) |
    2019-07-09| B06T| Formal requirements before examination|
    2020-04-22| B09A| Decision: intention to grant|
    2020-09-24| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/12/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12005434.1A|EP2689790B1|2012-07-26|2012-07-26|RO device and method for disinfecting lines in an RO device|
    EP12005434.1|2012-07-26|
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