CN2451836Y - Rotary disc valve - Google Patents

Abstract

The utility model discloses a rotary disc valve which comprises a valve body, a valve core, and a rotary mechanism. The utility model is characterized in that the valve is composed of a circular annular valve body with a flange disc joint and a sealing device; the valve core is the disc shape tightly in contact with the surface of a valve opening in rotary way; the valve core can rotate and autorotation under the valve core driven by a rotary handle of a rotary mechanism, so that the utility model can stop the solid grains in the fluid medium from entering the contact sealing surface of the valve core and the valve opening; therefore, the utility model can overcome the abrasion produced by erosion of the solid grains in the fluid and the fluid. The utility model is mainly used for conveying the solid grains or the solid grains in the fluid. The utility model has the advantages of simple structure and long service life.

Description

A kind of rotational circle moushroom valve

The utility model belongs to the mechanical pipe engineering, a kind of specifically rotational circle moushroom valve.

At present, in the existing valve of industrial usefulness, mainly be ball valve, gate valve and stop valve, wherein ball valve and gate valve, in use, exist the friction problem of sealing seat and spool (spool or valve plate), when having particle to exist in the fluid, will quicken the wearing and tearing of sealing seat and spool, cause interior leakage.There is not friction problem in stop valve, but when fluid flows through valve, be through a serpentine runner, fluid flow direction can become one with sealing surface and impact angle, form erosive wear, these valves all exist, because serious wear, or the high temperature expansion issues, cause interior leakage, the deficiency that working life is short.

The purpose of this utility model provides a kind of solid particle that is mainly used in, or contains the FLUID TRANSPORTATION of solid particle, can stop solid particle to enter the spool fitting surface, the novel rotating disk valve of long service life.

The technical solution of the utility model for achieving the above object, it is a kind of rotational circle moushroom valve, it includes valve body, spool and rotating mechanism, it is characterized in that said valve body is an annular valve 11, this annular valve and the left side flange 4 and the right side flange 13 that are connected with flanged ends 1, by bolt 24, nut 25, connect into a pressure medium chamber 26, the sealing in this pressure medium chamber, be to pass through rotating mechanism, metal octangonal ring 5, O-ring seal 12, graphite is filled out and is produced 14 without hesitation, seal ring 22, hexagonal spiro plug 23 constitutes, said spool is the disc spool 8 that has shrinkage pool, said rotating mechanism, be by the axle bed 2 on the right flank that is force-fitted in left side flange 4, with be contained in this axle bed, the spline running shaft 19 that is sliding fit, be contained on this spline running shaft, be the gasket ring 3 that is slidingly matched, turning handle 21, packing press ring 10, but pressure regulating cover axle sleeve 15 and spring 6, operating grip 16, nut 20, be connected the double-screw bolt 18 of the right flank of right side flange 13, spring 6 and spring axle bed 7 that nut 17 is contained in turning handle 21 shrinkage pools constitute, outer surface at turning handle 21 shrinkage pools is protruding with two sawtooth 27, on these two sawtooth, be with the disc spool 8 of band shrinkage pool, the end outer surface of this disc spool, by the effect of spring axle bed 7 and spring 6, contact with the intimate of valve port ring 9.

The utility model is a kind of rotational circle moushroom valve, compares with existing ball valve, gate valve and stop valve, has the fluid particle of prevention thing and enters the spool fitting surface, does not produce interior leakage problem, the advantage of long service life because of wearing and tearing.

Explanation to the Figure of description face:

Fig. 1 is the main sectional view of the utility model rotational circle moushroom valve.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1.

Carry out embodiment's explanation below in conjunction with Figure of description:

In Fig. 1, the 1st, flanged ends, the 2nd, axle bed, the 3rd, gasket ring, the 4th, left side flange, the 5th, octangonal ring, the 6th, spring, the 7th, the spring axle bed, the 8th, have the disc spool of shrinkage pool, the 9th, valve port ring, the 10th, packing press ring, the 11st, annular valve, the 12nd, O-ring seal, the 13rd, right side flange, the 14th, graphite packing without hesitation, the 15th, but the pressure regulating cover axle sleeve, the 16th, operating grip, the 17th, nut, the 18th, double-screw bolt, the 19th, spline running shaft, the 20th, nut, the 21st, turning handle, the 22nd, seal ring, the 23rd, hexagonal spiro plug, the 24th, bolt, the 25th, nut, the 26th, pressure medium chamber, the 27th, sawtooth.

The spool 8 of rotational circle moushroom valve, it is outer surface with valve port ring 9, sealing valve port face just, the planar slide contact, can be with the solid particle in the fluid, retaining is in the outside of sealing valve port face, and spool 8 also carries out rotation under the effect of two sawtooth that the shrinkage pool outer surface of turning handle 21 protrudes when rotating.

Because the rotation and the rotation of spool 8, not only self be subjected to uniform grinding, and can produce resistance reverse action by convection cell, reduce the fluid impact effect of end face (sealing valve port face) to valve port ring 9, because the direction that fluid flows is vertical with valve port ring end face (sealing valve port face), the vapour lock effect of pressure chamber 26 generations in addition, flow rate of fluid is slowed down, therefore, can not produce owing in the fluid and contain washing away of solid particle and fluid, and cause wearing and tearing.

The switch motion each time of valve can make the surface of contact (sealing valve port face) of spool 8 and valve port ring 9, produces grinding, and the valve switch number of times is many more, and it is flat more that this sealing valve port face grinds, and sealability is good more.

Claims (1)

1, a kind of rotational circle moushroom valve, it is characterized in that: include valve body, spool and rotating mechanism, said valve body is annular valve (11), this annular valve and the left side flange (4) and the right side flange (13) that are connected with flanged ends (1), by bolt (24), nut (25), connect into a pressure medium chamber (26), the sealing in this pressure medium chamber, be to pass through rotating mechanism, metal octangonal ring (5), O-ring seal (12), graphite packing without hesitation (14), seal ring (22), hexagonal spiro plug (23) constitutes, said spool is the disc spool (8) that has shrinkage pool, said rotating mechanism, be by the axle bed (2) on the right flank that is force-fitted in left side flange (4), with be contained in this axle bed, the spline running shaft (19) that is sliding fit, be contained on this spline running shaft, be the gasket ring (3) that is slidingly matched, turning handle (21), packing press ring (10), but pressure regulating cover axle sleeve (15) and spring (6), operating grip (16), nut (20), be connected the double-screw bolt (18) of the right flank of right side flange (13), spring (6) and spring axle bed (7) that nut (17) is contained in turning handle (21) shrinkage pool constitute, outer surface at turning handle (21) shrinkage pool is protruding with two sawtooth (27), on these two sawtooth, be with the disc spool (8) of band shrinkage pool, the end outer surface of this disc spool, by the effect of spring axle bed (7) and spring (6), be connected with the outer surface of valve port ring (9).

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