High-pressure air safety valve

Abstract

A high pressure air safety valve is applied to pipeline systems in mechanical industry. The whole device of the safety valve comprises a regulating screw cap, a valve body, a spring, a spring seat, a lock nut, a valve clack, a regulating nut, a valve seat, a round pin and a sealing washer. The valve body is installed on the valve seat; the valve body and the valve seat are fixed tightly through the round pin; the sealing washer is installed on the valve clack; both the sealing washer and the valve clack are installed on the valve seat; the lock nut and the regulating nut are installed on the valve body; the spring seat and the spring are installed on the valve body; and the regulating screw cap is installed on the upper part of the valve body. The operating principle of the safety valve is that when medium pressure in a system rises abnormally and reaches up to the opening pressure, a valve gate is automatically opened; and the medium discharges pressure outwards through eight small holes all around. When the pressure decreases to the reseating pressure, the valve gate is automatically closed. The safety valve has the advantages of advanced design, reasonable structure, safety, energy conservation, prolonged service life and good sealing effect. The safety valve can ensure safe operation of pressure pipeline systems.

Description

Technical field: [0001] The invention relates to a high-pressure air safety valve used as an overpressure protection device on pressurized equipment such as boilers and pressure vessels. Background technique: [0002] At present, the safety valve is an overpressure protection device used on boilers, pressure vessels and other pressurized equipment. When the medium in the container or pipeline exceeds the allowable pressure, the force acting on the valve disc is greater than the spring force or weight force. Finally, the disc rises automatically, the valve opens, reaches the full stroke, and discharges excess gas. After the pressure in the container or pipeline drops below the normal working pressure, the valve disc will automatically fall on the valve seat to prevent gas discharge, and the container or pipeline will resume normal operation. [0003] The safety valve is an automatic valve. By adjusting the spring pressure, the opening pressure of the valve is set. When the p...

AI Technical Summary

Problems solved by technology

The disc of ordinary safety valves adopts an upper sealing structure, which makes the center of gravity of the pressing point high and difficult to seal, and its opening height cannot be adjusted. After the product leaves the factory, the opening height is fixed, which cannot meet the customer's requirements for displacement adjustment.

This will cause a great waste of energy and the occurrence of vicious accidents.

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