• 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:
    In a centrifugal separator for the separation of two liquids the radially outermost part of the separating chamber (7) of the rotor communicates with a central outlet chamber (26) for the separated heavier liquid via a calibrated opening (27). From the outlet chamber (26) a channel (32 to 34) in a stationary outlet member (31) extends out of the rotor to a reception place for separated heavy liquid. Said channel (32 to 34) comprises a shut-off valve (35) and has between this and the outlet chamber (26) a calibrated outlet (36) intended to enable a certain liquid flow through at least part of the channel (32 to 34) while the valve (35) is closed. The throughflow areas of the calibrated opening (27) and the calibrated outlet (36), respectively, are chosen such that, when the valve (35) is closed, the liquid surface in the outlet chamber (26) will be adjusted to a relatively low level radially outside the level of liquid in the separating chamber so that unnecessary heat generation is avoided.
    公开号:SU1572402A3
    申请号:SU843826153
    申请日:1984-12-20
    公开日:1990-06-15
    发明作者:Нилссон Вилгот
    申请人:Альфа-Лаваль Марин Энд Пауэр Инджиниринг Аб (Фирма)；
    IPC主号:
    专利说明:

    The drum is provided with an annular piston 5, which serves to open and close the discharge ports 6 for sludge, which are formed at the base. Between the annular piston 5 and the drum lid 4 there is a septic chamber 7, and between the said piston and the base is a chamber 8 for the working fluid. The drum is equipped with a pipe 9 for supplying the initial suspension, exhaust chambers 10 and 11 for light and heavy liquid fractions, formed by radially arranged partitions 12 and 13 and having inlet holes in the center, discharges 14 and 15 disposed in these chambers branch pipes
    16 and 17 and a valve 18 for closing and opening the discharge port 17 of the heavy liquid fraction. Exhaust unit 15 has means for recirculating fluid to the drum zone.
    in front of the exhaust chamber 11, made in the form of a calibrated hole -19. The radial partition 13 forming the wall of this chamber has a calibrated bypass hole 20 forming the entrance to the chamber. 2 Il.
    The invention relates to equipment for separating a mixture of two liquids in a field of centrifugal forces.
    The purpose of the invention is to reduce the heating of the fluid in the outlet chamber for the yellow fraction with the outlet pipe closed, and thus improve its quality.
    In Fig.1 schematically shows the proposed centrifugal separator, a longitudinal section in Fig.2 - the upper part of the drum.
    The centrifugal separator contains an I-drum mounted on the shaft, consisting of a base 2 and a cover 4 "connected to it by means of a locking ring 3. Inside the drum there is an annular piston 5 that serves to open and close the discharge openings 6 for sediment made in the base. Between the annular piston 5 and the drum lid there is a separation chamber 7, and between the said piston and the base there is a chamber 8 for the working fluid.
    The drum is provided with a pipe 9 for supplying the initial suspension, exhaust chambers S and 11 for a light and heavy liquid fraction, formed by radially arranged partitions 12 and 13 and having inlet openings in the center, discharging devices 14 and 15 with outlet chambers 16 and 17 and a valve 18 for closing and opening the discharge pipe 17
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    heavy liquid fraction. The outlet device 15 has a means for recirculating it to the drum zone in front of the outlet chamber 11, made in the form of a calibrated orifice 19. The radial partition 13 forming the wall of this chamber has a calibrated overflow orifice 20 forming the entrance to the chamber. The dimensions of the cross sections of the calibrated orifices 19 and 20 are chosen from the condition of passing the same amount of liquid per unit time at a given level in the outlet chamber 11 for a heavy fraction, when the valve 18 closes the last branch pipe. The drum is also provided with a nozzle 21 for supplying the working fluid to the cavity 22, which is connected via a channel 23 to the chamber 8. The drum base 2 in the latter has a throttle channel 24 for draining the working fluid. Inside the separation chamber 7 is mounted on the plate holder 25 a package of conical plates 26. With the cone 27, the lower base of the plate holder forms a channel 28 for the passage of the source fluid into the chamber 7.
    Above the stack of plates 26, a conical plate 29 is installed, having a thickness greater than that of the plate, and is. A channel 30 for discharging a heavy liquid fraction. The conical plate 29 approximately at the level of the outer edges of the plates 26 has a through hole 31 and an annular flange 32, which forms a chamber 10 with the partition 12. Between the partition 13
    and flange 32 has a channel 33, which communicates with channel 30. A nozzle 9 for supplying the initial suspension is located coaxially inside the pipe FOR connected to an exhaust device 14 made in the form of a pressure disc 35. The pipe 34 in turn is covered by a coaxial pipe 36 connected to an exhaust device 15, which is also a pressure disk 37, having several channels 38 distributed inside the disk, which communicate through the annular channel 39 with the outlet nipple 17. The pressure disk 35 has channels 40, which through the ring The first channel 41 communicates with the outlet nipple 16. It has a sensor 42 of any conventional type.
    Through circuits 43 and 44 to sensor 42. and valve 18, respectively, control unit 45 is connected.
    Centrifugal separator operates as follows.
    A mixture of, for example, heavy diesel fuel, water and solid particles, is heated to, is fed through the pipe 9 and through the channel 28 into the separation chamber 7. At this time, the annular piston 5 under the action of the working fluid in the chamber 8 is pressed to gasket 46. A small amount of the working fluid continuously flows from the chamber 8 through the channel 24, but through the pipe 21 continuously receives the corresponding amount of new working water.
    In the separation chamber 7, the separated fuel moves to the center of the drum and flows into the outlet chamber 10, oTKVfla is pumped by the pressure disc 35 through the channels 40 and 41 to the outlet nipple 16. The radially inwardly directed septum 12 forms a drain outlet from the separation chamber 7 for. divided fuel, because the level of liquid in this chamber is determined by the position of the inner edge of the septum 12.
    The separated fuel will flow to the center of the drum even inside the channel 30 formed between the conical plate 29 and the drum cover 4. From channel 30, fuel enters channel 33, where its surface is set at the same level as in separation chamber 7.
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    A certain amount of fuel flows through the calibrated orifice 20 into the partition 13 and the exhaust chamber 11. From there, the fuel is injected with pressure head 37 through channels 38 and 39 into the outlet nozzle 17 and further to valve 18. In the initial position, valve 18 is closed and therefore no fuel flows through the nozzle 17 after the channels 38 and 39 are filled. However, the pressure disc 37 continues to pump fuel from the outlet chamber 11, which flows through the calibrated orifice 19 (see Fig. 2), made at a certain distance inside one of the channels ska 37. The fuel flowing out of the opening 19 is collected in the channel 33, where it cannot affect the level of the liquid and from where it can flow back into the outlet chamber 11 through the opening 20.
    The sizes of the openings 19 and 20 are chosen such that the same amount of fuel will flow through them in a unit of time, thus the liquid level in the outlet chamber 11 can be maintained in a radially outward direction as necessary to achieve a satisfactory discharge of separated Water, as will be described below.
    If there were no calibrated orifice 19 and / or calibrated orifice 20, the liquid level in the outlet chamber 11 at this stage of operation would be the same as in the separation chamber 7. This would mean that a relatively large part of the surface of the pressure disc 37 would be in contact with the fuel rotating inside the chamber 11, which led to an increase in its temperature to an undesirable level.
    During operation of the centrifugal separator, in which there is no calibrated orifice 19 and partition 13 with orifice 20, the temperature in chamber 11 rises to 150 C. Due to the introduction of the proposed improvement, the temperature could be reduced to ad 105 C.
    After some time has elapsed since the beginning of work, when such a quantity of separated water accumulates in the radially extreme part of the separation chamber, that the interface
    between the fuel and the water is at level A, the water fractions begin to be captured by the separated fuel flowing through the discharge pipe. This is detected by the sensor 42, which outputs a signal to the control unit 45. The control unit 45 in turn opens the valve 18 and keeps it open for a predetermined period of time. During this period: time, it is possible for leakage from the separation chamber 7 through the channel 30 and passage through the opening 20 of such separated water so that the interface in the separation chamber 7 between the fuel and the water shifts to level B.
    After the valve 18 is closed, the water present at the moment in the outlet chamber 11, the channel 33 and the channel 30 will flow back into the separation chamber, after which the fuel begins to flow through the opening 31 in the conical plate 29 and refills the indicated channels to the levels shown in the drawing.
    The separated water can be discharged in portions from the separation chamber 7. The solid particles separated in it can be removed even less often. This is done by stopping the supply of working fluid through the pipe 21. Then the control unit-45 can be programmed so that every fourth time when it receives a signal, indicating that the interface between the fuel and water in the separation chamber has reached A, the valve 18 is closed and the working fluid is temporarily stopped through the nozzle 21. Thus, the annular piston 5 moves axially downwards and the opening between it and the gasket 46 opens. Then, from the separation chamber 7, through an opening The term openings 6 and disposed radially outwardly of et.ogo openings in the base 2 of the rotor are output separated solid particles and desired amount of water.
    When sizing the calibrated orifices 19 and 20, it is possible to proceed from a certain level of fluid in the outlet chamber 11 and a certain size of the orifice 20.
    By controlling the pressure differential that will prevail in the liquid masses on both sides of the
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    towns 13 in the area of the opening 20 can determine the flow through its opening.
    In order to maintain the chosen level of fuel liquid in the outlet chamber 11, it is required that the exact same flow that passes through the calibrated orifice 20 must also pass through the calibrated orifice 19 while the valve 18 in the discharge pipe 17 is closed. Then, it is necessary to measure the pressure prevailing in the channel 38 of the pressure disc 37 near the calibrated orifice 19, when the liquid level in the outlet chamber 11 is at the desired elevation. After that, the size of the calibrated orifice 20 can be determined so that the two indicated flows are the same.
    After the correct dimensions are selected, the calibrated orifices 19 and 20 and the actuation of the separator will automatically maintain the surface of the liquid in the outlet chamber 11 at the desired level. i
    When the valve 18 opens, when the fluid flows through the channels 38 of the pressure disc 37, the static pressure of the fluid in the channels will decrease, which will lead to a decrease in the flow of liquid through the calibrated orifices 19.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A centrifugal separator containing a drum having a separation chamber, a nozzle for supplying the initial suspension to the latter, outlet chambers for light and. a heavy liquid fraction, formed by radially arranged partitions and having outlet openings, exhaust devices arranged in these chambers with discharge pipes and a valve for closing and opening the heavy liquid fraction branch pipe, characterized in that, in order to reduce the heating of the liquid, in the exhaust chamber for a heavy fraction with the latter discharged, and thus improving its quality, the exhaust device for the heavy fraction has a means for recycling it. and to the drum area before the final. the camera, made in the form of a calibrated orifice, wherein the radial partition forming the wall of the said chamber also has a calibrated bypass orifice forming the entrance to the chamber, and
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    The dimensions of the cross section of said calibrated orifices are chosen based on the condition that the same amount of fluid passes per unit of time at a given level of fluid in the outlet chamber for the heavy fraction.
    Figg
    类似技术:
    公开号 | 公开日 | 专利标题
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    US3448919A|1969-06-10|Automatic desludging apparatus
    EP0205246B1|1989-11-15|Centrifugal separator
    SU1743339A3|1992-06-23|Centrifugal separator
    GB1359157A|1974-07-10|Centrifugal separators
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    GB1315250A|1973-05-02|Centrifugal separators
    GB1099256A|1968-01-17|A method and means for indicating the sludge level in the sludge space of the rotor in sludge centrifuges
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    SE458748B|1989-05-08|Centrifuge with self-contained centrifugal drum
    US3976242A|1976-08-24|Self-emptying clarifying separator having a foam-free removal of the clarified liquid by means of a paring disk and an automatically operating system for detecting the level of the solids in the sludge chamber
    GB584538A|1947-01-16|Improvements in automatically opening separator bowls
    JPH07246349A|1995-09-26|Separation plate type centrifuge
    JP2582845B2|1997-02-19|centrifuge
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    US3445062A|1969-05-20|Centrifugal separator apparatus
    SU753473A1|1980-08-07|Separator with periodic discharging of sediments
    SU1597221A1|1990-10-07|Centrifugal separator drum
    同族专利:
    公开号 | 公开日
    KR850004208A|1985-07-11|
    DE3469412D1|1988-03-31|
    CA1248928A|1989-01-17|
    US4622029A|1986-11-11|
    BR8406611A|1985-10-15|
    EP0148598B1|1988-02-24|
    SE8307075L|1985-06-22|
    ES8606025A1|1986-04-01|
    HK48889A|1989-06-23|
    SE440487B|1985-08-05|
    UA6030A1|1994-12-29|
    ES538419A0|1986-04-01|
    EP0148598A1|1985-07-17|
    KR920006647B1|1992-08-14|
    PL251044A1|1985-08-13|
    SG27288G|1988-09-30|
    PL145775B1|1988-10-31|
    JPS60153960A|1985-08-13|
    JPS6254549B2|1987-11-16|
    SE8307075D0|1983-12-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2480291C1|2009-02-24|2013-04-27|Альфа Лаваль Корпорейт Аб|Centrifugal separator and method of separation|
    RU2563272C2|2010-03-19|2015-09-20|Альфа Лаваль Корпорейт Аб|Device and method for monitoring and control over layer radial position at interface in centrifuge with discharge nozzles|
    RU205921U1|2021-04-28|2021-08-12|Акционерное общество "Научно-исследовательский и конструкторский институт монтажной технологии - Атомстрой" |CENTRIFUGE FOR SUSPENSION SEPARATION|SE334847B|1969-05-08|1971-05-03|Alfa Laval Ab|
    DE2701623C3|1977-01-17|1981-11-19|Westfalia Separator Ag, 4740 Oelde|Centrifugal drum for the continuous concentration of suspended solids|
    DE2701624C2|1977-01-17|1983-03-17|Westfalia Separator Ag, 4740 Oelde|Continuously operating drum for concentrating suspended solids|
    SE8302215D0|1983-04-20|1983-04-20|Alfa Laval Marine Power Eng|centrifugal|SE448150B|1985-06-07|1987-01-26|Alfa Laval Separation Ab|centrifugal|
    US4684361A|1985-10-11|1987-08-04|Cardiovascular Systems, Inc.|Centrifuge|
    US4692136A|1985-10-11|1987-09-08|Cardiovascular Systems Inc.|Centrifuge|
    US4795419A|1985-10-11|1989-01-03|Kardiothor, Inc.|Centrifuge|
    US4718888A|1986-03-10|1988-01-12|Cardiovascular Systems, Inc.|Centrifuge bowl mount|
    SE456801B|1987-03-19|1988-11-07|Alfa Laval Separation Ab|OUTPUT DEVICE BY CENTRIFUGAL SEPARATOR|
    SE458507B|1987-06-24|1989-04-10|Alfa Laval Marine Power Eng|PROCEDURE IN OPERATION OF A Centrifugal Separator and Centrifugal Separator BEFORE THE IMPLEMENTATION OF THE PROCEDURE|
    SE461019B|1988-05-02|1989-12-18|Alfa Laval Marine Power Eng|CENTRIFUGAL SEPARATOR WITH A PUMP BODY, ESTABLISHED TO ACHIEVE A CIRCULATION OF LIQUID IN A CIRCULATION CIRCUIT|
    US4846780A|1988-08-10|1989-07-11|Exxon Production Research Company|Centrifuge processor and liquid level control system|
    DE4040294C2|1990-12-17|1994-06-16|Westfalia Separator Ag|Self-draining centrifugal drum for sterilizing milk|
    SE505440C2|1995-05-02|1997-08-25|Alfa Laval Ab|Method and centrifugal separator for separating two liquids|
    DK0868215T3|1995-12-01|2002-05-06|Baker Hughes Inc|Method and apparatus for controlling and monitoring a continuous supply centrifuge|
    SE9600299D0|1996-01-29|1996-01-29|Tetra Laval Holdings & Finance|An outlet device and a centrifugal separator provided with such an outlet device|
    SE514774C2|1998-12-21|2001-04-23|Alfa Laval Ab|Centrifugal separator control equipment and ways of controlling a separation operation|
    SE521432C2|1999-06-03|2003-11-04|Alfa Laval Corp Ab|Set the radial level of a boundary layer in a centrifugal separator|
    SE535959C2|2010-01-29|2013-03-05|Alfa Laval Corp Ab|Systems including centrifugal separator and method of checking the same|
    EP2556895B1|2011-08-10|2018-06-27|Alfa Laval Corporate AB|A separation disc for a centrifugal separator and a method for manufacturing the separation disc|
    DE102014118289A1|2014-12-10|2016-06-16|Gea Mechanical Equipment Gmbh|separator|
    EP3315203B1|2016-10-31|2019-07-03|Alfa Laval Corporate AB|A separation disc for a centrifugal separator|
    EP3315205A1|2016-10-31|2018-05-02|Alfa Laval Corporate AB|A centrifugal separator|
    EP3315204B1|2016-10-31|2019-05-08|Alfa Laval Corporate AB|A stack of separation discs|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE8307075A|SE440487B|1983-12-21|1983-12-21|CENTRIFUGAL DEVICE DEVICE|
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