SU342374A1 - SESYUNIDA IPPTYTYP ^ -Te ^ Ach ^ ^ CMY ^ BIBP „-K> & TSCD 4 •••• p. -1-11 -1p "GN" - Google Patents

Description

HYDRAULIC MEMBRANE VALVE

DESCRIPTION OF THE APPLICATION FOR OPENING AND DRIVING THE DISCHARGE OPENINGS OF THE ROTATING CENTRAL DRUM.

A hydraulic annular spring is known, installed in the groove, in the discharge gap, between the two opposite parts of the barn-bang and the Izgugi center. The disadvantages of this sealing element is that the area of its sealing surfaces (equal to or greater than the surface area on which the working fluid acts. Another disadvantage is that repartitioning of the sealing element depends mainly on the elasticity of the middle part, including side walls, therefore, the sealing ability of the element is insignificant; in addition, the choice of materials suitable for the manufacture of the element is limited (these are mainly high-elasticity (h1nnye compounds that are not bice aa sufficiently resistant to chemical attack).

Also known are devices in which the area of the reparative surface is significantly reduced the surface area on which the working fluid acts. However, in the assumption of this, the construction also involves the use of only an elastic material, as a result of which the initial forum of the membrane is deformed under the action of centrifugal forces.

to the extent that (when the sealing surface with the opposite side of the coitac is increased, the drum part is enlarged and can be a rabbi of the surface that the working fluid acts on. The sealing element can not be adjusted to different degrees, not amenable to regulation thereby the volume of the drum.

The proposed device differs from the known teO1, that the valve membrane is made with side supporting walls, each of which has at least one uirugi

the corrugation, smoothing out under pressure, obetopechiva thereby pressing the middle section of the membrane to the sealing surface. This makes it possible to increase the reliability of the rotor compaction relative to the centrifuge point. On the outer flat surface of the central ring of the 1st ring; the reinforcement ring is fitted with a removable sealing ring placed on it. AT

At least one control valve is installed on the supporting cavity of the annular membrane. The middle section of the annular membrane, reinforced by a ring, is located on its inner surface, FOR THE CENTRIFUG

along the cavity with both the drain cavity and the charging cavity of the centrifugal center.

FIG. Figure 1 shows a centrifuge drum fitted with a diaphragm valve, a vertical section, a npHMeiM part of the drum, spaced to the right of the vertical axis, partially rigged, since it is symmetric to the exact same part of the images to the left of the frilled vertical axis; in fig. 2- (The proposed diaphragm valve provided with openings for discharging working liquids; 1 in Fig. 3-vertical; another section of the other version of the mambrannoto valve and with one of several: apo-1 suppositories that control the shape of the outlet and on the fitting. A 4-vertical section of a possible variation of the diaphragm valve, provided with an outer reinforcing ring with an elastic sealing surface.

The center drum | fuction consists of the upper and lower parts 1 and LCP screws 3. The top part & oyer: there is a transparent disk 4 with a central ogtSepjfrraeM 5, through which the material can be fed into the drum, centrifugal material, “ring 6 for distribution N1. Pressure , in which it is located | JTS head screws 3. The lower part includes the rotor 7, in which the inner bowl 8 is placed, is creased and the axial centering screw 9, screwed into the nut W, which is located through the bottom of the rotor and attached to the shaft , I get. e1mu rotation, for example, from elektroevigatel .

The rotor 7 also has a lower annular gauge 13 with a central opening 13 through which the vertical end of a fixed pipe 14 enters the chamber and has an outlet opening through which the liquid is injected1 under pressure into the chamber 12. There are several evenly distributed distributions in the round wall of the rotor; the vertical channels 15 divided along the circumference and the nose, which are connected to the distribution chamber 12.

At the top, the channels 15 are connected with an annular ainoipnofi chamber A formed inside the control box; an annular annular diaphragm valve 16, and the bottom of this pressure chamber is surrounded by the upper ends of the circular rotor wall.

Bottom: the passage of the clots going nakloNNo with the ring side walls 17 and 18 of the valve 16 are fixed, respectively, by the upper, annular edge in the inner bowl 8 and the ring ledge Id; the lance 6. Between dialer 4 and the ring. The circles in the notches made in the suit and the ring, the spreader elements MieHTOB 20 and 2.1, which separate the disc and the ring, define the boundaries of one or more peripheral openings or discharge slots 22.

The chamber A, where it is subjected to action (m of the centrifugal forces, causes the inverted V-shaped middle section of the membrane valve 16 to move the BiBepx until it is pressed 5 to the lower surface of the disk 4 with its tip, effectively consolidating discharge gap. Some of the working fluid passes through the nonspread holes 23 in the wall of chamber 12, which are spaced around the circumference, but the supply of working fluid exceeds losses through opening 23, the valve 16 remains in the compressed position. and stopped, the pressure within chamber A

5 decreases, and the middle portion of the valve 16 returns to its normal position by opening the slit 22, as shown in FIG. one.

Valve 16 contains a body made of flexible material and may include a rigid support ring 24 connected to the inside of the upper portion of the valve. | Each lateral support wall of the valve is as follows: one folded rib (25 and 26), iKOTOpbie provide

5 raise and lower the middle portion of the valve 16 to close and open the slit. The valve and the lateral support walls 17 and 18, which are made in one piece with it, are made of high-grade material, for example

0 teflon and so on. But its physical nature of the valve is flexible, but not elastic, and it has sufficient mechanical strength. The reinforcing ring 24, firmly connected to the inside of the middle portion of the valve, can

5 to be made - out of a shock-or oil-resistant mechanically strong material.

Alternatively, shown in FIG. 2, the valve 16 is provided with a circumferentially 1-mm circumferentially-1T1T1I-1-27, also passing through the ring 24. Through the outer slope of the valve tip M, they are, as shown, from the 27A, which can replace conventional holes 23 Bicex cases, fred water supplement or other

5 of the working fluid to be discharged. That draft is even useful. In the case of a workable sedimentary material, it may be advisable to drain some of the working fluid B 6apai6aH through the holes 27 into the inner slope of the valve 16, which are directed to the discharge zone, as a result of which the sediment is slightly moistened and can even float up and be LOW. unloading. Depending on the specific types of materials that are centrifuged in the apparatus, the valve 16 may be removed by one or both of the Twist | Mi 27a and 27b.

FIG. 3 shows another valve variant 16.. Several located with some

0 G1; intercut: disc-shaped valves 28 pass through (cut-off) 1-hole holes 29 with seats for valves in the rotor carrier 7 and (Screw-in c) Screw Holes in the reinforcement ring 24. Such ancillary

M-23 or with openings of 27 or without those and others, if the named clathans themselves 015 and 1 are 1, they have the necessary leakage.

The device is equipped with what is for limiting the performance of the working fluid., Issued: during the period of compaction, and FOR a quicker AND: the valve. From the compaction stage, when the fall of the working fluid is stopped, the usual movement of valve 16 is used. This can be of great importance in cases where the internal bowl is rarely discharged rarely, only after relatively long periods of centering. Thus, large K1 quantities of working fluid, or equivalent energy, are expended in pumping the fluids in a closed system. In order for the yulapan 16 to remain in the closed position, the working fluid 1 comes out of the small station, the arm, and when the supply of this fluid is stopped, ensure complete flow and rapid release of all the working fluid. In order for the BHoiBb to pressurize the A-kahedron and move the Claian 16 to the compacted position in a basal manner, KpaiiKOiBpeMeHHm must be used to spin the working fluid into the rotating system in an amount exceeding the loss through / all of it. The valve will immediately expand and close at one time with B | oHendal valves 28. From this point onwards, it will remain in the compressed position, due to the supply of only a very small amount of life.

On phi (d. 4, another variant of coisT | hands1c and the proposed valve is shown. A reinforcement ring 30 is attached to 1core; 3) valve / valve, similar in action to the valve .16, on top of the path of material unloaded from the thicket 1, which is In the case of a high abrasive sediment unloading, the actual consolidation function is performed by a narrow annular

strip 32, made of a suitable elastic material and installed with the possibility of replacement on the top of the ring 30.

Subject matter

Claims (4)

1. Hydraulic membrane valve. for centrifuges, which is an annular m-membrane, made in the form of an average annular section with sidewalls made at the same time with a niad, traced along the outer and inner contours in the landing places of the centrifuge junction box and pressed to the centrifuge edge at the same time the valve seat, the pressure of the fluid supplied to the pressure cavity formed by the membrane and the end surface of the centrifuge rotor, through channels made in the rotor body, characterized in that in order to increase the reliability of the rotor sealing relative to the centrifuge flap, each side supporting wall of the membrane has at least one elongated corrugation ensuring that the middle portion of the membrane is pressed against the valve seat. 2. A valve according to claim 1, characterized in that an reinforcing ring with an outer sealing ring 1M disposed thereon is mounted on an outer flat surface of the middle portion of the annular membrane. 3. Clans according to claim 1, characterized in that at least one direct action valve is installed in the pressure cavity of the annular membrane. 4.. Valve on PP. 1 and 2, characterized in that the middle portion of the annular membrane, reinforced by a ring, located on its inner surface, has through-holes connecting the pressure cavity with both the drain cavity and the loading cavity of the centric fugue. 2 "A 16 25 I /// W 7 / 7 28 sixteen ten Fy Figz