SU716027A1 - Pressure regulator - Google Patents

Description

one

The invention relates to the field of automatic pressure control and can be used in pneumatic and hydraulic systems for reducing high pressure gas or liquid.

Pressure regulators are known, comprising a housing with inlet and outlet nozzles and spring-loaded valves disposed therein associated with the sensing element 1.

The closest to the technical essence of the present invention is a pressure regulator, comprising a housing with inlet and outlet nozzles, in which a sensing element is located connected through a pusher with a spring-loaded regulator, a tuning spring and a spring-loaded control valve 2f.

The disadvantages of the known regulators are the low accuracy of podkkrzhani output pressure, significant inertia and complexity of the design.

The aim of the invention is to improve the accuracy and simplify the controller.

The goal is achieved by the fact that the proposed regulator contains a stem and a diaphragm with a rigid center, connected with a tuning spring, and the plunger is made in the form of a hollow bushing, inside which there is a stem connected on one side with a spring-loaded control valve installed coaxially with the regulating on the other hand, with the rigid center of the membrane in which the safety valve is installed, connected to the stem.

The pressure regulator is shown in the drawing.

Claims (2)

The regulator includes a housing I with an inlet 2 and outlet 3 nozzles and a sensing element 4 connected through a pusher made in the form of a hollow sleeve 5, with a regulator 6, preloaded by a spring 7. Inside the hollow sleeve 5 is mounted a rod 8, connected to a rigid the center 9 of the membrane 10 and with the control valve 11, preloaded by the spring 12 and installed coaxially with the regulator 6. The hard 9 is connected with the spring of adjustment 13 connected with the adjusting whist 14. In the rigid center 9 of the membrane 10 there is a safety valve 15 with a spring 16. Regulator ION operates as follows. A high pressure gas is supplied to the inlet 2. The adjusting screw 14 compresses the adjusting spring 13 and, through the rigid center 9 and the stem 8, the control valve 11 is pressed from its saddle. A high level gas is throttled between the seat and the control valve and passes into the comaid cavity formed by the sensing element 4 and the membrane 10. At the same time, the sensing element 4 pushes the regulator 6 from the saddle through the hollow bushing 5. High pressure throttle 5 gas between the regulator and its seat and flows through pipe 3 completely under the sensitive element 4 and to the consumer. The impact of the gas flow through the chuvstvovitelny element 4 and the cavity above it is transmitted to the membrane 10, the hard center 9 and the spring of adjustment 13. When the equilibrium between the forces of the gas pressures at the inlet to the regulator of the reduced pressure output is established and springs, the control valves are closed. And if the pressure at the outlet of the regulator (for example, at the gas flow to the consumer) drops, the equilibrium is disturbed. The sensing element 4 bends due to the pressure in the flow over it (commanding pressure) and opens the regulator 6. In the case of command gas pressure insufficiency, which occurs when the sensitive element 4 is large displaced, the setting membrane 13 bends by the spring 13 valve II is pushed out of the Saddle and the volume of the MEXO sensor 4 and the membrane 10 is supplemented with the necessary amount of gas to ensure the value of the gas pressure regulator adjusted at the outlet. When increasing the outlet pressure above the adjusted one, the gas in the cavity between the sensing element 4 and the membrane 10 will also be under increased pressure, the setting spring 13 will compress and the hard center 9 will move away from the safety valve 15, communicating the specified cavity with the atmosphere. The proposed pressure regulator provides greater accuracy in maintaining the output pressure, reliability and simplification of the device. i. Claim 1. Pressure regulator, comprising a housing, with inlet and outlet nozzles, in which a sensitive element is located, through a pusher with a spring-loaded regulating member, a tuning spring and a spring-loaded control valve, characterized in that, in order to improve accuracy and The U15 is a regulator, it contains a stem and a diaphragm with a rigid center connected to the adjustment barrel, and the plunger is designed as a hollow bushing inside. which is located, on the one hand, is connected to the head of the 1 & 1MM depressant valve installed coaxially with the regulator, and on the other hand, with the rigid center of the membrane. 2, The regulator according to claim 1, of which is, with teM, that, in order to increase the reliability of the regulator, a spring-loaded pressure relief valve connected to the stem is installed in the rigid center of the membrane. Sources of information taken into account in the examination 1. USSR author's certificate N 392570, class, G 05D 16/06, 1971. 2. USSR author's certificate number 206198, cl. G 05 O 16/06, 1966 (prototype).