UA5374U - Supercharge valve block - Google Patents

Abstract

The proposed supercharge valve block is designed for supplying gas and regulating gas pressure. The valve block contains a check valve with an electromagnet actuator and a pressure regulator with a spring-loaded control valve. The spring pf the control valve contacts with a rod loaded by an additional spring. The area of the rod cross-section and the force of the additional spring are selected according to the defined dependence on the area of the cross-section of the outlet opening of the valve and the specified gas pressure. The chamber, in which the additional spring is installed, is coupled with the outlet chamber of the gas pressure regulator.

Description

The useful model applies to devices and automation units and can be used in gas systems of various branches of technology.

The purpose of a useful model is to increase reliability.

There are well-known units for gas supply and regulation, in which a pressure regulator and a shut-off valve with an electromagnetic drive |, (21, (ZI) are placed in a single housing. The main disadvantages of these units are low reliability, the absence of structural elements that increase the accuracy of maintaining the output parameter.

The technical problem, the solution of which is directed to the useful model, is to create an aggregate of increased reliability, in particular, with increased accuracy of maintaining the output pressure.

The essence of the useful model is that the block of inflation valves for gas supply and regulation, in a single body of which the shut-off valve with an electromagnetic drive and the pressure regulator are placed, has a pressure regulator control valve loaded with a valve spring, one of the supports of which is connected to a sealed rod, which is loaded with an additional spring, the cross-sectional area of the rod and the force of the additional spring are in a certain dependence on the cross-sectional area of the passage section and the pressure, and the chamber, where the additional spring is installed, is connected by a channel to the output cavity of the pressure regulator.

In addition, the interaction of the sensitive element with the control valve of the pressure regulator is carried out by means of a temperature compensator, which contains a movable sleeve, in which the compensating valve and the seat are installed, which are made of the same material and have the same geometric parameters as the control valve and the regulator seat pressure

In addition, the movable rod of the electromagnetic drive is connected to the shut-off valve with the help of a pin that passes through a hole with a larger section than that of the pin, and a buffer spring is installed between the shut-off valve and the movable rod.

In fig. the design of the inflation valve block is shown. A shut-off valve 2 with an electromagnetic drive 3, a pressure regulator 4 is installed in the housing 1. The control valve 5 is loaded with a valve spring 6, the support of this spring 7 is made movable and has a rod 8 that is sealed by rings 9. An additional spring 10 loads the rod 8 and is located in the chamber 11, which is connected by a channel 12 to the output cavity 13 of the pressure regulator 4. The interaction of the sensitive element - the bellows 14 with the control valve 5 is carried out using a temperature compensator, which contains a movable sleeve 15, in which the compensating valve 16 and the seat 17 are installed.

The movable rod 18 of the electromagnetic drive Z is connected to the shut-off valve 2 by means of a pin 19, which passes through a hole 20 of a larger cross-section than that of the pin. A buffer spring 21 is installed between the shut-off valve 2 and the moving rod. The working environment - high-pressure gas is supplied to the valve block through the nozzle 22 and is taken out through the nozzle 23.

When gas is supplied to the inlet through the nozzle 22 of the housing 1, the high-pressure gas enters the cavity where the shut-off valve 2 is installed. When voltage is applied to the electromagnetic drive C, the movable rod 18 runs into the pin 19, which passes through the hole 20, opens the shut-off valve 2 - and the gas passes to the inlet cavity of the pressure regulator 4. Gas throttling is carried out in the gap between the regulating valve 5 and the seat. A sensitive element - a bellows 14 maintains the output pressure at a given level and a moving system that includes a compensating valve 16, a seat 17, a sleeve 15, a control valve 5, a valve spring b, a support of this spring 7, a rod 8, loaded with an additional spring 10, is located in balance When the gas pressure in the nozzle 22 changes, the force that presses the control valve 5 to the seat due to the unloaded plane and the force of the valve spring 6 due to the movement of the rod 8 sealed by the rings 9 due to the unloaded plane of the rod change at the same time. Thus, the net force remains unchanged and the moving system remains in equilibrium.

When the gas temperature changes, the accuracy of the output pressure increases the temperature compensator due to the indentation of the seat 17 to the soft element of the compensating valve 16, which compensates for the same indentation of the soft element of the control valve 5 to the seat and the distance from the control valve 5 to the sensitive element 14 remains without changes, which also leaves the moving system in equilibrium.

Sources of information: 1. Description of the patent of Ukraine for the invention Me26053 (30501 6/06. 2. Description of the patent of Ukraine for the invention Me50717A 205016/06.

Z. Ratmansky O.I., Krychker I.R. Armature of reactive control systems of space flight vehicles. M. Mechanical Engineering. 1980. ee her r. di ra Y 1 SK te

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Claims (3)

1. A block of inflation valves for gas supply and regulation, in a single body of which there is a shut-off valve with an electromagnetic drive and a pressure regulator, which is characterized by the fact that the regulating valve of the pressure regulator is loaded with a valve spring, one of the supports of which is connected to a sealed rod, which loaded with an additional spring, the cross-sectional area of the rod and the force of the additional spring are in a certain dependence on the cross-sectional area of the passage section and pressure, and the chamber where the additional spring is installed is connected by a channel to the output cavity of the pressure regulator. 2. The block of inflation valves according to claim 1, which is characterized in that the interaction of the sensitive element with the regulating valve of the pressure regulator is carried out by means of a temperature compensator, which contains a movable sleeve, in which the compensating valve and the seat are installed, which are made of the same material and have those the same geometric parameters as the control valve and pressure regulator seat. 3. The inflation valve unit according to claim 1, which is characterized in that the movable rod of the electromagnetic actuator is connected to the shut-off valve by means of a pin that passes through a hole with a larger cross-section than the cross-section of the pin, and a buffer spring is installed between the shut-off valve and the movable rod .