• 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:
    A raw fluid containing foreign materials is led to the inlet of a membrane filter equipment (10) which provides on the one hand a concentrate containing more foreign materials than that of the raw fluid, on the other hand a permeate containing less foreign materials than that of the raw fluid. The concentrate leaving the membrane filter equipment (10) is fed back entirely to the inlet of the membrane filter equipment (10) and the fluid is circulated under high pressure until a predetermined concentration value is reached, then the concentrated fluid is discharged and steps are repeated with a further amount of raw fluid. A continuous operation of the membrane filter equipment (10) and a pump (13) ensuring a high pressure in it can be provided by two vessels (34, 35) which are arranged in the fluid circuit and adapted to be switched over.
    公开号:SU1722211A3
    申请号:SU884356760
    申请日:1988-11-04
    公开日:1992-03-23
    发明作者:Сюч Ласлоне；Сюч Аттила
    申请人:Ласлоне Сюч и Аттила Сюч (HU)；
    IPC主号:
    专利说明:

    The invention relates to membrane technology and can be used to clean, concentrate and separate liquids in various industries.
    The purpose of the invention is to reduce energy consumption for the treatment of liquids and increase the productivity of the membrane apparatus.
    Figure 1 presents the scheme of operation of the membrane element; 2-4 - diagrams of membrane installations with different connections of technological units.
    The membrane element 1 can be made in the form of a thin tube in which there is a membrane channel 2, a layer 3 of a concentrated fluid, input 4 of the original
    fluid, output 5 concentrate and output 6 permeate.
    Figure 2 shows a flow chart of the device in one of its variants. The device consists of a furniture unit 7, c. which feed pump 8 supplies the treated liquid. First, it passes through the water pre-purification unit 9, which can be used as a filter. Using the pressure pump 10, the pressure in the liquid is raised to the worker.
    In addition, the device includes a circulation pump 11, two parallel tanks 12 and 13, a tank 14 for feeding the original treated liquid, a tank 15 for dropping the permeate and valves on the pipelines.
    X |
    Yu Yu
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    Fig. 3 shows a device in which parallel containers 12 and 13 are combined in one housing 16 and separated by an elastic partition 17. In both embodiments, an outlet 18 of concentrate from the circulation circuit is provided. To reduce the filling time of the containers 12 or 13 with the treated liquid, an additional pump 19 can be used.
    Figure 4 shows a variant of the device used when a two-stage cleaning of the fluid is required. The device is equipped with an additional capacity of 20, for discharge of the permeate of the first stage, which is connected to the suction port of the pressure pump 10. The device according to this variant is equipped with an additional circulation tank 21 divided by an elastic partition 22 into two cavities. The valve system prevents mixing of the concentrate remaining in the circulation loop after completion of the processing cycle with the new portion of the liquid to be treated.
    The device works as follows.
    The processed fluid is supplied by the feed pump 8 to the suction inlet of the injection pump 10, and then by the circulation pump 11 is drawn into the circulation, passing through one of two parallel tanks 12 or 13. In the membrane unit 7, the liquid is divided into a permeate, which is collected in the tank 15 or 20, and a concentrate that returns either to the container 14 or to the suction inlet of the circulation pump 11. After the end of the treatment cycle, the concentrate is discharged from the device through the nozzle 18.
    With the implementation of the method, the proposed device achieves a reduction in energy consumption and an increase in the productivity of the membrane apparatus due to the fact that, despite the periodic nature of the liquid treatment, all components entering the device operate continuously and no accumulation of contaminants occurs on the membranes.
    权利要求:
    Claims (7)
    [1]
    Claim 1. Method for periodic treatment of liquids using semipermeable membranes, including collecting the initial volume of liquid to be processed, supplying fluid under constant pressure to a membrane apparatus, removing permeate passing through the membrane, circulating remaining over the membrane
    concentrate under the specified constant pressure to achieve the desired concentrate quality and the periodic release of the concentrate, characterized by
    that, in order to reduce the energy consumption for processing and increase the productivity of the membrane apparatus, the concentrate is circulated alternately through two parallel tanks, the concentrate of the previous treatment cycle being discharged from the second tank and the initial volume of fluid is collected for the next treatment cycle while the concentrate is being circulated through the first tank.
    [2]
    2. A method according to claim 1, characterized in that a liquid is added to the circulating concentrate in a volume equal to the volume of permeate released.
    [3]
    3. The method according to claim 1, characterized by
    so that, in order to improve the quality of the treatment of the liquid by processing it in two stages, the initial volume of liquid for the next processing cycle is collected by introducing permeate from the previous processing cycle into the second tank.
    [4]
    4. A device for the periodic treatment of liquids using semipermeable membranes containing membrane
    an apparatus having an inlet nozzle and nozzles for permeate and concentrate output, feeding a pump that creates a constant pressure in the diaphragm apparatus, a circulation pump located in the circuit,
    the connecting outlet of the concentrate and the input fitting, the regulating valve and the output units from the permeate and concentrate devices, characterized in that, in order to reduce the energy consumption for
    processing of an increase in the productivity of the membrane apparatus, the circuit is provided with two parallel containers that are switched on in the loop alternately.
    [5]
    5. The device according to claim 4, characterized by the fact that the concentrate output unit is connected
    with capacitances with the possibility of alternate connection.
    [6]
    6. The device according to claim 4, that is, so that both containers are made in one
    the case is separated from one another by an elastic partition, and the contour is equipped with an additional reservoir located between the vessels and the membrane apparatus.
    [7]
    7. A device according to claim 6, characterized in that the additional tank is divided by an elastic partition into two chambers, each of which is connected to both containers.
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    类似技术:
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    同族专利:
    公开号 | 公开日
    JPH01502496A|1989-08-31|
    WO1988006475A1|1988-09-07|
    DD267914A5|1989-05-17|
    US4983301A|1991-01-08|
    YU44688A|1989-12-31|
    HU200563B|1990-07-28|
    EP0307422A1|1989-03-22|
    AU1369388A|1988-09-26|
    HUT46555A|1988-11-28|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    HU87955A|HU200563B|1987-03-06|1987-03-06|Method and apparatus for treating liquids consist of foreign matter by diaphragm filter device|
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