SU1125430A1 - Direct-flow valve - Google Patents

Abstract

DIRECT-FLOW VALVE, containing flat saddles and plates with shanks, sewn between the saddles, characterized in that, in order to improve efficiency and simplify manufacturing technology, each shank is provided with a zig or bent over the entire length of 0.8-5 plate thickness.

Description

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This invention relates to a compressor industry and can be used in rotary valves.

A known valve valve containing flat saddles and plates with shanks clamped between the saddles 1.

The disadvantages of the known valve are its leakage at the pinching points of the shanks, due to the different thickness of the seats, and the need to use plates of exactly the same thickness in each valve when replacing them, as otherwise the fitting size of the valve changes.

Looseness worsens economic performance, and the need to install plates of the same thickness with replaceable ones complicates the manufacturing technology.

The aim of the invention is to increase the efficiency and simplify the manufacturing technology of the valve.

The goal is achieved by the fact that in a continuous flow valve containing flat saddles and plates with shanks clamped between the saddles, each shank is provided with a zigom or is bent by an amount of 0.8–5 plate thicknesses along its entire length.

FIG. 1 shows the valve assembly; in fig. 2 - saddle and plate; in fig. 3 shows section A-A in FIG. one; in fig. 4 — node I in FIG. 3; in fig. 5 — node II in FIG. 3; in fig. 6 - plates in free state, cross section.

The rotary valve contains flat seats 1 and plates 2 with shanks 3 clamped between the seats i. Each shank 3 along its entire length is provided with a zigom 4 or unbent on the value of 0.8-5 thickness of .5 plate 2.

In each seat, gas channels 5 are made for passage of gas with a sealing surface of the opposite side having a restricting surface 7. The flow-through valve operates as follows.

Plate 2, fixed with shank 3 by means of zigov 4 between the seats 1, alternately hits the restrictive surface 7 and the sealing surface 6, opening. or closing the channels 5 for the passage of gas.

Depending on the purpose, the valves are manufactured with plates of different thickness in the range of 0.2-0.6 mm. In this case, if the amount of the limb or the shank of the shank is performed within 0.8-5 of the plate thickness, it becomes possible, while preserving the need for the yoke; the elastic properties of the shank, reliable sealing at the site of replenishment and, in addition, unification of the distance from the boundary surface to the sealing surface for different valves in this distance. So, for thinner plates of the ridge or limb should be performed by up to 5 plate thickness, for thicker relative size of the bend or ridge should be reduced to 0.8 plate thickness.

Reliable sealing of the pinch point when using zigov or limb in the shank increases the efficiency of the valve.

In addition, this design of the shanks makes it possible to reduce the parallel requirements of the opposite surfaces of the saddles, to apply when replacing a plate of a different thickness without changing the valve dimensions, to unify the depth of the bounding surface at the pinch point, which generally simplifies the valve manufacturing technology.

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Claims (1)

DIRECT VALVE containing flat seats and plates with shanks clamped between the seats, characterized in that, in order to increase efficiency and simplify manufacturing technology, each shaft along its entire length is equipped with a zig or bent by 0.8-5 thickness of the plate.