专利摘要:
1. CENTER TREATMENT SEPARATOR, which includes a drum containing a lid, base, a plate holder with a tray package, a pressure device for removing the light fraction and located along the periphery of the drum a row of valves for removing the thickened phase from the slurry cavity of the drum, each of which consists of a vertically placed sleeve, communicated with the slurry cavity, and in contact with the lower end surface of the saddle bush mounted in the body of a spring-loaded piston, which serves to open and close the valves and o under the drum base, so that, in order to prolong the service life of the valves and increase their reliability in operation, each valve is equipped with a glass, the bottom of which is placed on the saddle to move the glass inside the sleeve; the wall in the lower part of the glass has a groove for ejecting the condensed phase located at a right angle i to the axis of the glass. SG) 2. The separator of claim 1, wherein the wall of the stas channel has a longitudinal groove and the sleeve has a pin located in the latter to prevent the glass from turning inside the sleeve.
公开号:SU1151196A3
申请号:SU813257498
申请日:1981-02-27
公开日:1985-04-15
发明作者:Ингвар Андерс Бодельсон Берт
申请人:Альфа-Лаваль Аб (Фирма);
IPC主号:
专利说明:

co a "1 The invention relates to equipment for separating a liquid in a field of centrifugal forces. Closest to the present invention is a centrifugal separator comprising a drum containing a crinkle, a base, a tray holder with a stack of plates, a pressure device for removing the light fraction and located along the periphery of the drum a row of valves to drain the thickened phase from the slurry cavity of the drum, each of which consists of vertically placed sleeve, in communication with the slurry cavity, and in contact with the lower end surface of the sleeve of the seat, mounted in the body of a spring-loaded piston, which serves to open and closing the valves and the bar below the base with the formation of a cavity between them for supplying air for the joint venture. The valve seat is made of relatively soft material to achieve reliable pressure on the entire nozzle even in that case, the seat, for example, due to the deformation during the operation of the means holding the seat, will be slightly inclined with respect to the nozzle. When the valve is open, the medium escaping from the channel under high pressure passes through an annular gap formed between the seat and the nozzle. If the medium contains particles that disconnect, they will mainly corrode the valve seat throughout the entire flow of medium through the valve. This separation of the valve seat occurs gradually and, as a result, the valve does not ensure tightness in the closed state. The purpose of the invention is to prolong the service life of the valves and increase their reliability in operation. To achieve this goal, a centrifugal separator comprising a drum containing a lid, a base, a plate holder with a tray package, a pressure device for removing the light fraction and a row of valves located on the periphery of the drum to drain the thickened phase from the drum’s slurry cavity, each of which consists , vertically placed sleeve, connected to the sludge cavity, and in contact with the lower end surface of the sleeve of the saddle 6 mounted in the body of a spring-loaded Porish, which serves to open and close valves and located base of the drum, each valve is provided with a glass, which dnshtse taken on the saddle for movement within the cup sTyjtKH, wherein the bottom wall has a slot nozzle for discharging condensed phase, arranged at right angles to the cup axis. The wall of the cup should have a longitudinal groove, and the sleeve should have a pin located in the latter to prevent the glass from turning inside the sleeve. FIG. 1 schematically shows a centrifugal separator drum, having a row of valves, a longitudinal section; in fig. 2 is a section A-A in FIG. 1 (a part of the separating chamber of the rotor, the separating chamber communicating with the valves), in FIG. 3, the valve is in the closed position in FIG. 4, the same, during the opening j in FIG. 5 is the same in the fully open position in FIG. 6 is a section BB in FIG. 5. The centrifugal separator includes a drum 1 containing Krischka 2, a base 3, I connected 1 with a lid using ring 4, a plate holder 5 with a stack of plates 6, a pressure device 7 for draining the light fraction and located around the periphery of the valve drum 8 for draining the valuable phase from the slurry cavity 9 drum. In the slurry cavity of the drum, conical insert plates 10 are installed, forming pockets 11, the lower part of which communicates through axial channels 12 with valves 8. Drum 1 is mounted on the drive shaft 13. Each valve 8 consists of a vertically placed sleeve 14 communicated with the slurry cavity, and contacting with the bottom end surface of the seat sleeve 15, mounted in the body of a spring-loaded piston 16, which serves to open and grind the valves and is located under the base of the drum 1 to form a cavity between them 17 for the supply of air. Each valve is provided with a glass 18, the bottom of which is placed on the saddle 15 for moving the glass inside the sleeve, while the wall in the lower part of the glass has 3 groove 19 for ejecting the thickened phase located at a right angle to the axis of the glass. The wall of the cup has a longitudinal groove 20, and the sleeve has a pin 21 located in the latter, as a result of which the turn of the cup is prevented around the longitudinal axis. The sleeve 14 is made of relatively hard material and has a channel 22, which is an extension of the channel 12 at the base 3 of the drum. The glass 18 is made of a relatively solid material and is installed in the sleeve 14 with an annular gap 23 that allows the movement of the glass 18 in the sleeve 14. The annular gap is so narrow that it prevents the flow of the medium through the specified gap cavity. The length of the groove 19 in the angular dimension around the axis of the glass 18 is about 180. The sleeve 14 has an end edge 24 against which the spring 25 of the seat 15 is pressed against the surface 25 of the seat 15 to form a seal 26. The saddle 15 is made of relatively soft material so that the abutment surface 25 is deformed / end edge 24 and forms a seal with it when the valve is closed. Centrifugal separator operates as follows. The initial fluid is supplied to the drum 1 through the inlet 27 and through the distribution channel 28 is introduced into the separating chamber 29 of the drum, where the heavier medium is thrown to the periphery and settled in the pockets 11, and the lighter medium moves in the plate pack and enters the chamber 30, from where it is discharged through the pressure device 7. The valves 8, evenly distributed around the periphery of the rotor, work simultaneously with the help of a common spring-loaded piston 16 which is mounted to move axially in the axial direction guides 32 and 33 between the two end positions. When the piston 16 is located in the first end position, closer to the base 3, it holds the valves 8 in a closed position. When the piston 16 is located in a different end position, the valves are in the open position. 964 The piston 16 is held p, the first position of the spring 31, and in the second position by the pressure of air supplied to the cavity 17 between the piston 16 and the drum base 3 through the channels 34, 35 and 36 in the shaft 13. The valve is opened by means of the piston 16 (FIG. 4), with the seat 15 moving in the direction from the sleeve 14, and the cup 18 under the pressure of the concentrated phase in its internal cavity follows the seat 15. The edge 24 opens the groove 19 and the condensed phase flows out through it. The valve assumes a fully open position (FIG. 5). When the groove 19 is located at a distance B from the edge 24, the thickened phase flows out of the groove 19 in a substantially radial direction and does not fall on either the edge 24 or the abutment surface 25. The valve is again closed by means of a piston 16, with the seat 15 and the cup 18 return to the position shown in FIG. 3. The saddle 15, which is made of relatively soft material, is the part of the valve that is least resistant to corrosion. Therefore, it is important to protect the abutment surface 25, which forms the sealing surface of the seal 26, from the influence of the outflowing medium. The condensed phase that flows out of the valve will not fall on the thrust surface 25, i.e. a surface that forms a tight contact with the lip 24 when the valve is closed, if the distance A is large enough, which can be explained as follows. When the edge 25 begins to open the groove 19 (FIG. 4), the condensed phase begins to flow through the groove in the direction indicated by the position 37, which forms an angle oL, having a value of about 45 °, with the axis 38 of the cup 18, This medium falls on the saddle 15 along the arc a circle with a radius R and a center on axis 38, which (a circle) at a sufficiently large distance A lies radially outside the thrust surface 25. As the slot 19 continues to open, the angle increases and the medium falls on the saddle 15 farther and farther away from the St 25U thrust surface 25 and in the end when the valve behind This is the position indicated in FIG. 5, the medium will flow out of the valve at a substantially right angle to the axis 38. 6 The thickened phase is thus discharged from the pockets 11 of the drum. The proposed valve design makes it possible to lengthen the service life and increase their operational reliability.
JO

ig.2
23
2d
15
31
权利要求:
Claims (2)
[1]
D. CENTRIFUGAL SEPARATOR, including a drum containing a cover, a base, a plate holder with a package of plates, a pressure device for removing light fractions and a series of valves located on the periphery of the drum for removing the condensed phase from the slurry cavity of the drum, each of which consists of a vertically placed sleeve, communicated sludge cavity, and in contact with the lower end surface of the sleeve of the saddle, mounted in the body of the spring-loaded piston, which serves to open and close the valves and located under the base of the drum, characterized in that, in order to extend the service life of the valves and increase their reliability, each valve is equipped with a glass, the bottom of which is placed on the saddle to move the glass inside the sleeve, while the wall in the lower part of the glass has a groove for ejecting the condensed phase located at right angles to the axis of the glass.
[2]
2. The separator by π. 1, characterized in that the wall of the glass has a longitudinal groove, and the sleeve is a pin located in the latter to prevent the glass from turning inside the sleeve.
SU .1151196 f 11511
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同族专利:
公开号 | 公开日
DE3102041A1|1981-12-17|
JPS56130246A|1981-10-13|
SE436840B|1985-01-28|
CA1167428A|1984-05-15|
FR2477037B1|1984-10-26|
US4375870A|1983-03-08|
FR2477037A1|1981-09-04|
SE8001551L|1981-08-29|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
SE8001551A|SE436840B|1980-02-28|1980-02-28|A Centrifugal Separator whose rotor exhibits, at its periphery, multiple openable valves|
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