Gas outlet valve with dual-ball sealing

Abstract

The invention provides a gas outlet valve with dual-ball sealing. The gas outlet valve with dual-ball sealing is small in part number, simple in structure, low in cost, good in performance stability and high in reliability. The gas outlet valve with dual-ball sealing comprises a valve body 1 and a bonnet 2 matched with the valve body 1. The valve body 1 is provided with an A tower gas outlet 11, aB tower gas outlet 12 and a valve body gas outlet 13. An A and B tower gas outlet communication pipe 21 is arranged in the bonnet 2. The A and B tower gas outlet communication pipe 21 is provided with through holes corresponding to the position of the A tower gas outlet 11, the position of the B tower gas outlet 12 and the position of the valve body gas outlet 13 respectively. An A tower sealingball 3 is arranged at the position of the A tower gas outlet 11. A B tower sealing ball 4 is arranged at the position of the B tower gas outlet 12. The gas outlet valve with dual-ball sealing is applied to the technical field of gas valves.

Description

technical field [0001] The invention relates to an air valve, in particular to a double-ball sealed air outlet valve. Background technique [0002] In a compressed air purification device with a double-tower structure, a two-inlet and one-outlet outlet valve is required to prevent the return of the purified air. At present, the air outlet valve generally adopts a double-ball horizontal motion sealing structure or a double-check valve structure horizontal structure arrangement. The double-ball horizontal motion sealing structure uses two sealing balls to block the seals of the gas outlets of towers A and B respectively, and switches the gas outlet from left to right. In order to seal the gas outlets of towers A and B, the gas outlets must be effective. On the basis of sufficient area, it is necessary to ensure the reliability of the horizontal movement limit of the sealing ball, which requires the use of the sealing ball movement limit valve core assembly, which has a compli...

AI Technical Summary

Problems solved by technology

The double-ball horizontal motion sealing structure uses two sealing balls to block the seals of the gas outlets of towers A and B respectively, and switches the gas outlet from left to right. In order to seal the gas outlets of towers A and B, the gas outlet must be effective. On the basis of sufficient area, it is necessary to ensure the reliability of the horizontal movement limit of the sealing ball, which requires the use of the sealing ball movement limit valve core assembly, the structure is somewhat complicated, and the reliability is also somewhat lacking

The horizontal layout of the double check valve structure is to use the working principle that the check valve can only output gas in one direction to exchange gas from tower A and B. The valve group designed using the working principle of the check valve structure must be designed with a fixed seat and a structural valve plate , there are many accessories involved, and there is also a small probability of being stuck and cannot be opened

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