CN1079295C - Method and device for supply of control liquid the centrifugal separator - Google Patents
Method and device for supply of control liquid the centrifugal separator Download PDFInfo
- Publication number
- CN1079295C CN1079295C CN97191913A CN97191913A CN1079295C CN 1079295 C CN1079295 C CN 1079295C CN 97191913 A CN97191913 A CN 97191913A CN 97191913 A CN97191913 A CN 97191913A CN 1079295 C CN1079295 C CN 1079295C
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- wall elements
- storage chamber
- output channel
- control liquid
- flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
- B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
Abstract
Method and device for the supply of control liquid to a rotor of a centrifugal separator, which device comprises a cylinder (25), in which a movable wall element (26) is arranged, which axially delimits a storing chamber (29) in the cylinder (25). In the storing chamber a predetermined volume of control liquid is stored. Control liquid is pressed out of the storing chamber (29) into the rotor during axial displacement of the wall element (26). Futhermore, the invention comprises a centrifugal separator, which is provided with such a device (21). A portion of the control liquid in the storing chamber (29) is pressed upon displacement of the wall element (26) a first distance out through a first outlet passage (33) in the device with a high flow. The first outlet passage (33) is then closed when the wall element (26) has been displaced this distance. A portion of the remaining control volume of control liquid in the storing chamber (29) is pressed out of the storing chamber (29) upon continuing displacement of the wall element (26) a second distance through a second outlet passage (36) in the supplying device (21) with a flow, which is substantially lower than the first flow.
Description
The present invention relates to a kind of method that control liquid is provided to centrifugal separator with feedway, feedway has a cylinder, in cylinder, be provided with the wall elements that an axially-displaceable is put, this wall elements axially defines a storage chamber in cylinder, wherein stored the control liquid of scheduled volume, and in the course of the work because wall elements moves axially, at least a portion of the above-mentioned amount of control liquid flows out storage chamber and enters rotor.
The invention still further relates to a kind of rotor the device of controlling liquid is provided to centrifugal separator.This device comprises a cylindrical shell, is provided with the wall elements that an axially-displaceable is put in cylinder, and this wall elements axially defines a storage chamber in cylinder, has the control liquid of scheduled volume in the storage chamber.For storage chamber, be connected with an input port at this, because wall elements is supplied with control liquid moving to storage chamber of first direction, and output channel in feedway, when control liquid supplies to rotor, the moving axially of second direction, at least a portion volume that is stored in the control liquid in the storage chamber is forced out the conduit of storage chamber through being connected on the output channel by output channel and enters rotor by wall elements.This supplier also comprises the parts with power extruded wall element on second direction of being scheduled to, and described predetermined power is greater than making a concerted effort that the fluid pressure in the storage chamber when control liquid is fed into rotor produces.
In addition, the present invention relates to a kind of whizzer, it has a device from control liquid to its rotor that supply with.
US4510052 has showed a kind of whizzer, it has the device to its rotor supply control liquid of a mentioned kind, and products all in the disengagement chamber of passage with the emptying rotor of a circumference or wherein needed part are opened and closed to this device off and on when the period in necessary requirement.Pressure by control liquid makes this valve keep closing of passage slidably on the direction of closing passage to the extruding of valve, presents a so-called sealing chamber like this, and this sealing chamber is provided with a delivery valve in its most external.This delivery valve is opened by a certain amount of control liquid that an injection device provides, this delivery valve is used for discharging and is contained in sealing chamber control liquid more or less, make it enter a so-called opening chamber with higher flow velocity, described injection device applies effect by compression strength, and described opening chamber is provided with a throttling delivery outlet in its most external.Control liquid presents with the direction of opening delivery valve pressure of delivery valve effect in the opening chamber, and this pressure is opposite with the active force of one group of spring generation.
Usually, the opening chamber control liquid in the rotation that is transported to rotor of having packed into.When control liquid is transported in the rotation of rotor fully, radially moved free surface this moment of control liquid inwards and promptly reached a definite radial location, at this, because above state, the pressure of the control liquid that gathers in the opening chamber will and be opened delivery valve above the elastic force that produces, thus, control liquid will flow out the sealing chamber.Yet, the supply of control liquid produces high like this flowing, make controlled liquid in the atrium radially inwardly be filled into the inboard of the radial location of mentioning for the first time, open and allow before control liquid flows out the sealing chamber at delivery valve, control liquid only is transported in the rotation of rotor to a certain extent.
When delivery valve is opened, make many control liquid flow out the sealing chamber very soon, the insufficient pressure that remains at the control liquid of sealing in the chamber keeps closing of passage with the fluid pressure that opposing is stored in the product in the split cavity, passage is opened and product contained in the split cavity is flowed out.Split cavity contains tolerant much parts and flows out by passage, how long come to determine by what the control liquid that little by little flows out through choke valve retained in the opening chamber, the control liquid that little by little flows out through choke valve can keep delivery valve to open, and determined value and flow are the volume that supplies to the control liquid of opening chamber before delivery valve is opened.
In known feedway, when high-pressure air pressure acts on the syringe and will control in the process that liquid extrudes from syringe, this value is adjusted by the adjusting time when drawing off at every turn.In above-mentioned relation, be very short about the process of time, this make enough accurately and repeatedly on demand amount to draw off product be very difficult.
Sealing chamber and syringe inject the control liquid from the control fluid supply repeatedly, and the control fluid supply places the jar of whizzer top certain altitude to constitute by one usually, or is made of the light water guard system.Dump finish after, separated product is re-injected in the split cavity, it is fast to inject the sealing chamber when not leaking by passage.Because in discharge process, product does not cut off control liquid usually to the supply of split cavity and flows to the supply of sealing chamber, in this case, control liquid must be adjusted and be adapted to product to the supply flow rate of sealing chamber and flows to the supply of split cavity.
Because the effective fluid pressure of control fluid supply is very low, and more seriously,, it constitutes if being water pipe system by common constant variation, adjust suitable supply flow rate and be unusual difficulty.In fact effectively very low pipeline and the valve with big circulation area of also meaning of fluid pressure must be utilized, and this makes regulates suitable flow even more difficult.
The rotor to centrifugal separator that the objective of the invention is to finish aforesaid kind provides a kind of method and apparatus of control liquid, so that it at first provides the control liquid of an extraordinary definite amount under the high repetitious situation of high flow capacity, and provide more substantial control liquid under the flow of unmanageable external circumstances not relying on, as the fluid pressure of light water guard system.
Above-mentioned purpose is finished by the mode of extruding according to the present invention, in the first step, after described supply has been placed into, because wall elements is moved along first distance by an adjustable pressure effect, extruding is stored in a predetermined portions of the control amount of liquid in the storage chamber, by an output channel that is arranged in the feedway, storage chamber is flowed out in the influence that overcomes first-class dynamic resistance with first liquid form, first flows greater than predetermined minimal flow, when first distance move to the end after, close first output channel at least in part by the switch element that is connected on the wall elements, and in second step after the first step, because the continuation of wall elements on second distance moved, stay the amount of the control liquid in the storage chamber down to small part by being arranged on one second output channel in the feedway at pressure, overcome second flow resistance with second liquid form and flow out storage chamber, second flow resistance is greater than first-class dynamic resistance.
Supply with the device of control liquid to the rotor of centrifugal separator according to the present invention for finishing said method, it comprises: one first output channel, it makes conduit be connected with storage chamber, and it is configured to be suitable for the influence outflow storage chamber of one the first first-class dynamic resistance that flows and overcome, this first flows than minimal flow height of expectant control liquid, and above-mentioned flowing is because wall elements moves up due to the first predetermined distance in second party; Also comprise one second output channel, it also makes conduit be connected with storage chamber, and it is configured to be suitable for when on the second distance of wall elements in second direction when mobile, ratio first mobile second an obviously low influence outflow storage chamber that flows and overcome one second flow resistance, second flow resistance is higher than first-class dynamic resistance.Further, according to apparatus of the present invention, comprise a switch element that is connected on the wall elements, on first distance of wall elements when mobile in second direction, it is configured to open and keeps first output channel open-minded, and wall elements moved first apart from the time, it closes first output channel at least in part, and keeps first output channel to close at least in part when wall elements is mobile on second direction continues.
In another embodiment of the present invention, first and second output channels are held when wall elements is mobile on the 3rd distance and close, the 3rd distance is separated with first and second distances, this device also comprises one the 3rd output channel, by the 3rd output channel storage chamber is linked to each other with conduit, and by the 3rd output channel, at least when wall elements is mobile on the 3rd distance, the 3rd flow resistance that control liquid overcomes greater than second flow resistance flows out, after this, second output channel is opened, and stays open in the moving process on second distance at wall elements.
Best, in first step process, the liquid that control liquid is extruded storage chamber flow to and doubles the liquid stream that in second step process control liquid is extruded storage chamber less.
In a preferred embodiment of the present invention, wall elements is pushed along second direction in the mode of pressure air, wall elements also axially defines a compression chamber, this compression chamber is used for charging into the pressure air of adjustable seamless power when wall elements moving process on second direction, and makes the discharge air in the moving process when wall elements on first direction.
The present invention will be described in more detail below in conjunction with accompanying drawing, wherein
Fig. 1 summarily shows an axial cutaway view by the rotor of centrifugal separator, and it has a device, and will control liquid according to the present invention with said apparatus and can supply on the rotor,
Fig. 2 illustrates in greater detail the longitudinal sectional view of feedway according to one embodiment of present invention, and
Fig. 3 shows the longitudinal sectional view of feedway according to another embodiment of the invention.
Rotor shown in Figure 1 has a top 1 and a bottom 2, and they are kept together by a lock ring 3.Have in the rotor inboard one can axially movable valve slide plate 4, valve slide plate 4 has been determined a split cavity 5 with described top 1.Valve slide plate 4 defines a sealing chamber 6 with described bottom 2, the setting of valve slide plate 4 is suitable for opening and closing a circular passage 7 of surrounding rotor turning cylinder, circular passage 7 makes the footpath of split cavity 5 most external that makes progress be connected with delivery outlet 8 in being configured in rotor bottom 2, and the product that is contained in the split cavity 5 is discharged more or less off and on by delivery outlet 8.Sealing chamber 6 has an input port, center 9 that is used to supply with control liquid, and its radially most external have a delivery valve 10 that draws off control liquid.Control liquid places sealing chamber 6, and in running, it produces the pressure that circular passage 7 directions are closed on an edge on valve slide plate 4, and this pressure is opposite with the pressure effect of product in the split cavity 5.
In centre of rotor, unlimited fixedly input pipe 11 is used to import will be by the product of centrifugation.Input pipe 11 quilts are round a distributing device 12, and in split cavity 5, the composition in split cavity 5 in the product is separated Product dispenser of input for its.Main separation this moment occurs in the space between the separator disk 13, and separator disk 13 is arranged in the split cavity 5 with the form of piling up.On center input pipe 11, be provided with a fixedly device for discharging 14, fixedly device for discharging 14 is used for drawing off concentrating from the isolated light especially composition of input product.
Can axially movable delivery valve 10 be subjected to the extruding along the pressure of close outflow valve 10 directions that produced by several helical springs 15, these helical springs 15 moving axis that rotates is arranged.Delivery valve 10 is determined an opening chamber 16 with the bottom 2 of rotor, and opening chamber 16 has an input port, center 17 and the throttling outlet 18 that the control liquid in the opening chamber 16 is flowed out to opening chamber 16 input control liquid.Control the input port 17 that liquid are provided to opening chamber 16 by conduit 19, conduit 19 is also supplied with the control liquid to the input port, center 9 of sealing chamber 6, and conduit 19 opens wide in input port, center 9.The input port 17 of opening chamber 16 is communicated with the input port, center 9 of sealing chamber 6 by an overflow outlet 20, when the sealing chamber 6 that exports 20 radially inner sides when overflow is filled, controls liquid and exports 20 input ports 17 that enter opening chamber 16 by overflow.Control liquid in opening chamber 16 is to pressure of delivery valve 10 effect of opening on delivery valve 10 directions and opposite with the pressure effect of helical spring 15.
In Fig. 2, illustrated in greater detail according to the embodiment of feedway of the present invention.It has a cylinder 25, and wherein being provided with one can axially movable wall elements 26.In cylinder 25 inner wall element 26 moving process, wall elements 26 adopts the mode of two sealing rings 27 and 28 to be adjacent to simplified inner surface hermetically, sealing ring 27 and 28 is provided with a big axial spacing each other, to prevent the inclination of wall elements 26, this inclination can make that moving axially of wall elements 26 is difficult more.
Axially determined a storage chamber 29 in a side of wall elements 26 and be a compression chamber 30 in an opposite side.One is preferably circular cylindrical component 31 and is fixedly joined to the side of wall elements 26 towards storage chamber 2.The longitudinal axis of cylindrical component 31 is parallel to the axis of (preferably coaxial in) cylinder 25.When triple valve 23 is in the enable possition, compression chamber 30 is linked to each other with high-pressure air source, and then wall elements 26 is pushed to the end wall 32 of cylindrical shell, end wall 32 has been determined the axial two ends of storage chamber 29 with wall elements 26.The another location of triple valve 23 makes compression chamber 30 be communicated with on every side atmosphere, to drain the air in the compression chamber 30.
One first output channel 33 is set in end wall 32, first output channel 33 is connected storage chamber 29 and allows that a first flow, this first flow are higher than the minimum discharge that expectant control liquid overcomes the influence outflow storage chamber of first low flow resistance with conduit 19.Described minimum discharge is higher than the control fluid flows out the opening chamber by choke valve 18 maximum stream flow.
In the embodiment shown in Figure 2, be used for being connected to conduit 19 from the conduit 22 that a control fluid supply is supplied with control liquid.First output channel 33 and cylindrical component 31 are coaxial and with cylindrical component 31 identical cross section is arranged.The axial length of cylindrical component 31 is less than the greatest axial length of storage chamber 29.Thus, move the process of one first distance at second end wall 34 of the cylinder 25 of wall elements 26 from the first end position towards the left end that is in example shown in the figure, the whole of cylindrical component 31 will be among the storage chamber 29.
When wall elements 26 was mobile on above-mentioned first distance, cylindrical component 31 arrived end wall 32 and closes first output channel 33 with a sealing ring 35.In wall elements 26 and cylindrical component 31 moved on the second distance identical with the moving direction of first distance continuously, above-mentioned seal ring seal ground was against the outline of cylindrical component 31.Be in the process that its second distance moves at wall elements shown in Fig. 2 26.
Be provided with one second output channel 36 in cylindrical component 31, it also links to each other storage chamber with conduit.When wall elements 26 and cylindrical component 31 move second distance, above-mentioned second output channel 36 allows second a liquid stream that is lower than first liquid stream substantially to overcome the suffered drag effect outflow storage chamber of second liquid stream, and second liquid flows the resistance of suffered resistance greater than first liquid stream.
How long the second distance that wall elements 26 moved and passed control liquid outflow storage chamber 29 has, and the amount that therefore supplies to the control liquid of rotor by the second liquid stream in moving has muchly, is decided by that pressure-air passes through the time that triple valve 23 is connected compression chamber 30.When triple valve was in a position, compression chamber 30 was communicated with high-pressure air source, and when being in other position, triple valve 23 links to each other with ambient atmosphere to discharge the air in the compression chamber 30.This wall elements 26 can not shift out its end position in the face of end wall 32.In the embodiment shown, the maximum of wall elements 26 moves the restriction that is subjected to end wall 32.In wall elements moved on second distance, if you also will control the amount of the control liquid that supplies to rotor, the obturating element that can be provided with a required axial length for example was inserted in the storage chamber and with end wall 32 and engages.
Embodiment according to the feedway of the present invention shown in Fig. 3 is different from embodiment shown in Figure 2, provides the conduit 22 of control liquid not pass through conduit 19 from the control fluid supply in this example, and directly is connected with storage chamber on the end wall 32 of cylinder 25.In addition, the end of second output channel 37 of outstanding wall elements 26 is not opened wide on the axial end of cylindrical component 31, but in perforate on the circumferential surface of its axial end portion certain distance.When its with second direction in axial (promptly towards figure right side) moving process, cylindrical component 31 will be before second output channel 37 be opened, and seals first output channel 33 and control liquid can flow out storage chamber 29 by second output channel 37.Thus when needed, you can obtain clearly to separate between the liquid that liquid flows and wall elements 26 provides in the moving process of the second distance stream that wall elements 26 provides in the moving process of first distance.
For making moving of wall elements 26 and cylindrical component 31 can be short-range, and in this moving process, first output channel 33 and second output channel 37 are closed, and one the 3rd output channel 38 is arranged in the cylindrical component 31.The 3rd output channel 38 has a chokes hole 39, and the high flow resistance in chokes hole 39 moves in above-mentioned short-range process at wall elements 26, only makes a low flow velocity can flow out storage chamber 29.In addition, in Fig. 3, wall elements 26 is displayed on its end position, and storage chamber 29 has maximum volume when this position.
By conduit 19, device 21 is connected to the rotor of centrifugal separator, carries out following steps according to the present invention by means of the supply of the control liquid that installs 21 pairs of rotors:
Shown in embodiment in the drawings, before the supply of control liquid begins, for on demand or the equal time cycle open and again close passage 7 make the product in the split cavity 5 discharge more or less, triple valve 23 has been in this position, in this position, in the sufficiently long at least time, storage chamber 29 contained air are discharged from, so that the pressure of control liquid is used to pass wall elements 26 to its end position at a first direction towards second end wall 34 of cylinder 25 in the conduit, and fully refill storage chamber 29.
When the supply of control liquid when having begun, triple valve 23 is converted, and makes compression chamber 30 be connected with a pressure air source, and the pressure of this source of the gas is controlled the pressure of liquid in the storage chamber 29.Thus, wall elements 26 is moved on second direction towards end wall 32.Because mobile one first distance of wall elements 26, it is being passed control liquid and is flowing out storage chamber 29 by first output channel 33, first output channel 33 allows one high first to flow through the influence that overcomes a low first-class dynamic resistance, and then by conduit 19, conduit 19 leads to the annular input port 9 of the sealing chamber 6 in rotor.In input port 9, the control liquid in rotation has a radially inner free surface, and this liquid level is marked with a triangle in Fig. 1.Under the general state of operation, conduit 19 openings are on a radial location, this radial location is in the radial outside of the radial location of free surface, in order that keep balance at opening part and between the body pressure of rotating liquid and the pressure supplied with from the control liquid of conduit 22.Because wall elements 26 squeezes out storage chamber 29 to control liquid with a quite high pressure, 9 free surface will radially move inward and be in the radial outside of the radial position of overflow outlet 20 in the input port.Make wherein control liquid be higher than the flow velocity that exports 18 effluent fluids by throttling by overflow outlet 20 with one like this and flow to opening chamber 16, opening chamber 16 little by little radially inwardly is filled thus.Close as long as delivery valve 10 keeps sealing chamber 6 to be in, control liquid just flows to opening chamber 16.Before liquid outflow sealing chamber 6 is opened and controlled to delivery valve 10, such high flow rate is taked in the supply of control liquid, make opening chamber 16 that controlled liquid is full of, a control liquid only part is transported in the inside rotation of rotor radial, and reach a radial position (level), in this radial position, in stable status, surpass the pressure of helical spring 15 and open delivery valve 10 owing to the control liquid that pours fully will make the pressure that accumulates in control liquid in the opening chamber 16.
When delivery valve 10 had been opened, control liquid flowed out sealing chamber 6, and this means that again passage 7 is opened and product contained in the split cavity 5 is flowed out by delivery outlet 8 more or less.The fact that control liquid flows out sealing chamber 6 also means there is not more control liquid inlet opening chamber 16, and is little by little discharged by throttling outlet 18 at the control liquid of 16 kinds of opening chambers.Last opening chamber only radially is filled on the radial position level, is fully transmitted the pressure that also can not surpass helical spring 15 generations for a long time even accumulate in the pressure of the control liquid in the opening chamber 16 in this position.This makes delivery valve 10 close the delivery outlet of this sealing chamber 6.
What control liquid flowed out sealing chamber 6 and indirectly in the split cavity of much parts contained product flow out through delivery outlet 8, how long be decided by to control the time that liquid can keep delivery valve to open in the opening chamber has.
In addition, wall elements 26 on first distance element 31 that has been moved and has been connected on the wall elements 26 reach first output channel 33 and close it.
In the processes that wall elements 26 moves continuously, first output channel 33 is closed, simultaneously second output channel 36 or 37 at wall elements 26 along being opened in the second distance moving process.
After this, triple valve 23 is rotated and makes compression chamber 30 be communicated with atmosphere.Thus, the air in compression chamber 30 can be excluded and storage chamber 29 re-fills control liquid by wall elements 26, and this moment, wall elements 26 resetted towards the end wall 34 of cylinder 25 by the pressure of control liquid in the conduit 22.
At wall elements 26 along first distance with along in the second distance moving process, by shown in above-mentioned explanation and Fig. 3 embodiment as seen, the liquid that provides stream when needed can with the time interval be held.
Claims (7)
1, the method for control liquid is provided to the rotor of centrifugal separator by a feedway (21), feedway (21) has a cylinder (25), a movably wall elements (26) is set in cylinder (25), it axially defines a storage chamber (29) in cylinder (25), in storage chamber (29), store the control liquid of a scheduled volume, moving axially along with wall elements (26) is in operation, at least a portion control liquid is extruded storage chamber (29) and enters rotor, it is characterized in that:
In the first step, be stored in a predetermined portions of the control amount of liquid in the storage chamber (29), be added into the back because wall elements (26) moving on first distance a supply, by being installed in first output channel (33) in the feedway (21), under the adjustable pressure of storage chamber (29), overcome the effect of the interior first flow resistance of first output channel (33) and be forced out with first flow, first flows is higher than predetermined minimum stream momentum;
The part of at least the first output channel (33) wall elements (26) move first apart from the time be closed by a switch element (31), element (31) links to each other with wall elements (26), and remain in the part of the control liquid in the storage chamber (29) at least, in the second step process after following the first step closely, because wall elements (26) overcomes continuous the moving of the influence of second liquid flowing resistance on second distance, with second flow by being arranged on feedway (21), in second output channel (36,37) be extruded outflow storage chamber (29), second liquid flowing resistance is higher than first liquid flowing resistance and its flow is lower than first flow.
2, method according to claim 1, it is characterized in that: first and second output channels (are respectively 33 and 36,37) when being held in the moving process on the 3rd distance of separating with first and second distances, wall elements (26) closes, feedway (21) also comprises one the 3rd output channel (38), it is connected storage chamber (29) with conduit (19), at least carrying control liquid by it in the wall elements moving process overcomes the 3rd fluid resistance and flows on the 3rd distance, the 3rd flow resistance is higher than second flow resistance, after this second output channel (36,37) be opened and in moving on the second distance, stay open at wall elements.
3, method according to claim 1 and 2 is characterized in that: the flow that the control fluid is extruded storage chamber (29) in the first step doubles the flow that in second step control fluid is extruded storage chamber (29) at least.
4, supply with the device of control liquid to the rotor of centrifugal separator, this feedway comprises:
A cylinder (25), a wall elements (26) can be arranged in the cylinder (25) with moving axially, and wall elements (26) axially defines a storage chamber (29) in cylinder (25), wherein have the control liquid of scheduled volume;
An input port that is connected on the storage chamber (29) is used at wall elements (26) will controlling liquid and supplying to storage chamber (29) when first party moves up;
One is connected in storage chamber (29) and is installed in output channel on the feedway (21), supplying with in the process of control liquid to rotor, because wall elements (26) moving axially on second direction, the at least a portion that is stored in the control liquid in the storage chamber (29) is extruded storage chamber (29) by this output channel, enters rotor by a conduit (19) that connects with this output channel;
In the process of supplying with control liquid, on second direction, push the device of wall elements (26) with a predetermined power, this power is made a concerted effort greater than resulting from the middle fluid pressure of storage chamber (29),
It is characterized in that in this device, comprising:
First output channel (33) that is connected in storage chamber (29), it links to each other storage chamber (29) with conduit (19), the setting of first output channel (33) be suitable for when wall elements (26) along second direction on predetermined first distance when mobile, allow a first flow that overcomes first-class dynamic resistance influence, described first flow is higher than a predetermined minimum discharge
Second output channel (36,37) that is connected in storage chamber (29), it also links to each other storage chamber (29) with conduit (19), the setting of second output channel be suitable for when wall elements (26) along second direction on a second distance when mobile, allow second flow that overcomes the influence of second flow resistance from wherein passing through, described second flow resistance is higher than first-class dynamic resistance, and
A switch element (31) that is connected in wall elements (26), it is configured to such an extent that can open and close first output channel (33), it is in and opens and make first output channel (33) open-minded when mobile on first distance along second direction when wall elements (26), and when wall elements (26) move past first apart from the time, close first output channel (33) at least in part and on second direction, continue in the moving process maintenance first output channel (33) to small part and be closed at wall elements (26).
5, device according to claim 4, it is characterized in that: when wall elements (26) on the 3rd distance of separating with first and second distances in the moving process, its first and second output channel (is respectively 33 and 36,37) be held and close, feedway (21) also comprises one the 3rd output channel (38), by it storage chamber (29) is connected with conduit (19), and when wall elements (26) is mobile on the 3rd distance, it allows at least one liquid stream to overcome the 3rd flow resistance by the 3rd output channel, and the 3rd resistance that flows is higher than second resistance that flows.
6, according to claim 4 or 5 described devices, it is characterized in that: on second direction, push wall elements (26) be configured to push wall elements (26) in the mode of pressure air, wall elements (26) also axially defines a compression chamber, when wall elements (26) this compression chamber when second party moves up dispose under an adjustable pressure charged pressure air, and be drained when wall elements (26) this compression chamber when first party moves up.
7, centrifugal separator is characterized in that it has according to any device that is limited in the claim 4,5 or 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE96003132 | 1996-01-29 | ||
| SE9600313A SE505099C2 (en) | 1996-01-29 | 1996-01-29 | Method and apparatus for supplying control fluid to a centrifugal separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1209760A CN1209760A (en) | 1999-03-03 |
| CN1079295C true CN1079295C (en) | 2002-02-20 |
Family
ID=20401183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97191913A Expired - Fee Related CN1079295C (en) | 1996-01-29 | 1997-01-24 | Method and device for supply of control liquid the centrifugal separator |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0879089B1 (en) |
| JP (1) | JP4253040B2 (en) |
| KR (1) | KR100478425B1 (en) |
| CN (1) | CN1079295C (en) |
| AU (1) | AU1678897A (en) |
| DE (1) | DE69713277T2 (en) |
| RU (1) | RU2196641C2 (en) |
| SE (1) | SE505099C2 (en) |
| WO (1) | WO1997027945A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE510541C2 (en) | 1997-09-29 | 1999-05-31 | Alfa Laval Ab | Centrifugal separator control device |
| KR102051207B1 (en) * | 2018-01-30 | 2019-12-03 | 이준석 | Piston for centriguation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4510052A (en) * | 1984-02-03 | 1985-04-09 | Alfa-Laval Separation Ab | Operating system for centrifugal separators |
| WO1990000768A1 (en) * | 1988-07-12 | 1990-01-25 | U & I Engineering Handelsbolag | Method and apparatus for dosing a fluid |
| DE4026952C1 (en) * | 1990-08-25 | 1991-09-19 | Westfalia Separator Ag, 4740 Oelde, De | Sepn. and classification of solids - involves centrifuge with slide control system |
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1996
- 1996-01-29 SE SE9600313A patent/SE505099C2/en not_active IP Right Cessation
-
1997
- 1997-01-24 AU AU16788/97A patent/AU1678897A/en not_active Abandoned
- 1997-01-24 RU RU98116265/13A patent/RU2196641C2/en not_active IP Right Cessation
- 1997-01-24 CN CN97191913A patent/CN1079295C/en not_active Expired - Fee Related
- 1997-01-24 JP JP52754797A patent/JP4253040B2/en not_active Expired - Fee Related
- 1997-01-24 KR KR10-1998-0705804A patent/KR100478425B1/en not_active IP Right Cessation
- 1997-01-24 EP EP97902780A patent/EP0879089B1/en not_active Expired - Lifetime
- 1997-01-24 DE DE69713277T patent/DE69713277T2/en not_active Expired - Lifetime
- 1997-01-24 WO PCT/SE1997/000114 patent/WO1997027945A1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4510052A (en) * | 1984-02-03 | 1985-04-09 | Alfa-Laval Separation Ab | Operating system for centrifugal separators |
| WO1990000768A1 (en) * | 1988-07-12 | 1990-01-25 | U & I Engineering Handelsbolag | Method and apparatus for dosing a fluid |
| DE4026952C1 (en) * | 1990-08-25 | 1991-09-19 | Westfalia Separator Ag, 4740 Oelde, De | Sepn. and classification of solids - involves centrifuge with slide control system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100478425B1 (en) | 2005-05-16 |
| EP0879089A1 (en) | 1998-11-25 |
| SE9600313L (en) | 1997-06-23 |
| JP2000504269A (en) | 2000-04-11 |
| SE9600313D0 (en) | 1996-01-29 |
| DE69713277T2 (en) | 2002-10-31 |
| WO1997027945A1 (en) | 1997-08-07 |
| AU1678897A (en) | 1997-08-22 |
| DE69713277D1 (en) | 2002-07-18 |
| EP0879089B1 (en) | 2002-06-12 |
| CN1209760A (en) | 1999-03-03 |
| JP4253040B2 (en) | 2009-04-08 |
| SE505099C2 (en) | 1997-06-23 |
| KR19990082082A (en) | 1999-11-15 |
| RU2196641C2 (en) | 2003-01-20 |
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