SU723521A1 - Rate-of-flow regulator - Google Patents

Description

The invention relates to devices that automatically control the flow rate of current media, and can be widely used in the national economy, for example, shipbuilding.

a radiating organ containing a housing, and the flow channel of which is mounted an elastic locking element, which at the same time is also a sensitive element made in the form of a hollow rotation ellipsond interacting with a spherical saddle [1].

The disadvantage of this body is its low accuracy. Due to the fact that in case s arrives at its inlet cavity of an off-design (increased) pressure of the medium, its gate will overlap the working line. disrupting the working nickel-work systems.

Closest to the proposed invention is a pressure regulator with a sensing element located in its housing, kinematically connected to the driven link by the adjustment rail, which is connected by a channel. 2 feedback with the output cavity of the controller [2].

Its disadvantage is the low accuracy of maintaining the flow rate, with a change in the input and output pressure, the complexity of the design.

The purpose of the invention is improving accuracy and simplifying the design of the regulator.

This is achieved by the fact that in it the sensitive element is made of an elastic shell forming a closed cavity with the body, inside of which there is a sleeve and L-shaped levers, the fulcrum of which is located on. case, smaller shoulders are connected with the first end face of the sleeve, and larger shoulders with the second torus of the sleeve and with the sensing element.

In FIG. 1 shows the proposed flow controller, inoperative position: in FIG. 2 - the same working position.

The controller comprises a housing 1, a sleeve 2, L-shaped levers 3, a sensing element c. the form of an elastic shell 4, the input cavity A, window 5, the output cavity B.

The regulator operates as follows.

In the initial state (before the supply of the working medium), the elastic shell 4, covering the large shoulders 6 has the shape of a cylinder, and the input cavity A through the window (s) 5 5 communicates with the output cavity B.

When applying the pressure of the working medium to the input cavity And it, passing through the window 5, flowing around the sensing element and compressing it, acts on the elastic shell 4. 10

The elastic shell, transmitting its force, acts on the large shoulders of the levers 3 which, turning around the pivot point, are compressed, reducing the diameter of the protruding part of the sensing element, simultaneously acting with their smaller shoulders 7 on the end face of the sleeve 2, moving it toward the outlet cavity of the housing 1, stretches the elastic sheath to a certain size. With increasing or decreasing pressure 20 in the input cavity A, the protruding part of the sensing element increases or decreases in diameter / acting as a damper, which helps to stabilize (smooth out cycles) the pressure, thereby changing the flow cross section with a change in pressure and preserving the set operating mode of the device regulator .

The proposed regulator is structurally simple, due to which its accuracy in operation is significantly increased and the range of applicability by input pressure is expanded.

Claims (2)

(54) FLOW REGULATOR -3 The regulator operates as follows. In the initial state (before the supply of the working medium), the elastic shell 4, covering the large shoulders 6 has the shape of a cylinder, and the input A through the window (s) 5 communicates with the output cavity B. When the pressure of the working medium is supplied to the input cavity A through the windows 5 of the circumferential sensing element and crimping it, it acts on the elastic sheath 4. The elastic sheath, by transmitting its force, acts on the large arms of the levers 3, which, being rotated relative to the fulcrum, compress, reducing the diameter of the protruding part, feel a small element, simultaneously acting with smaller arms 7 on the end of the sleeve 2, moving it towards the output cavity of the housing 1, stretching the elastic shell to a certain size. With increasing or decreasing pressure in the inlet cavity A, the protruding hour of the sensing element increases or decreases in diameter, working as a damper, which contributes to stabilizing (smoothing cycles) pressure, thereby changing the flow cross section when the pressure changes and maintains the specified operating mode of the device regulator. The proposed controller is simple in design, due to which its accuracy in operation will significantly improve and the range of inlet pressure applicability will be expanded. Claims of flow control comprising a housing with an input and output cavity and a sensitive element installed in the output cavity, characterized in that, in order to improve the accuracy and simplify the design of the regulator, the sensitive element in it is made of an elastic shell that forms a closed cavity with the housing . The inside of which is installed the sleeve and L-shaped levers, the fulcrum of which is located on the body, the smaller shoulders are connected with the first end of the sleeve, and the larger shoulders - with the second end of the sleeve and with sensitive by the element. Sources of information taken into account during the examination 1. USSR author's certificate No. 495484, cl. G 05 D 16/06, 1970. 2. USSR author's certificate number 396516, cl. G 05 D 16/06, 1968 (prototype).