A Balance Valve Capable of Two-way Pressure Regulation

Abstract

The invention discloses a balance valve capable of adjusting the pressure in two directions. The balance valve comprises an internal operation device mainly comprising a rotating handwheel and a handwheel rod, an external operation device mainly comprising a sleeve and a head screw, a valve body mainly comprising a lower support and a plunger, and a valve core body assembly mainly comprising a spring and a valve core, wherein the head screw penetrates through the sleeve and a center hole of the lower support; the spring sleeves the head screw; the valve core is mounted at the top end of the head screw and then tightened; the handwheel rod penetrates through the plunger and is screwed by a certain number of threads; the handwheel rod and the plunger are inserted into the lower support; the lower support and the plunger are fixed through a jacket nut; the rotating handwheel is mounted at one end of the handwheel rod; during internal pressure adjustment, the rotating handwheel and the handwheel rod are rotated to jack out the valve core, so that the valve core is separated from the plunger, and communication between internal and external gas paths is realized; and during external pressure adjustment, the sleeve is rotated to drive the head screw and the valve core to move, so that the valve core is separated from the plunger, and communication between internal and external gas paths is realized. The balance valve is compact in structure, small in volume and high in reliability.

Description

technical field [0001] The invention relates to the aerospace field, in particular to an aerospace vehicle with high requirements for volume, quality and reliability. Background technique [0002] At present, the general-purpose balance valve can only be operated on one side. In the case of both internal and external pressure changes, the one-way operation balance valve has certain limitations. Although this problem can be solved by connecting the one-way balance valve in reverse, this will cause Extra volume and mass. [0003] Aviation vehicles have strict requirements on the volume, quality and reliability of valves. In order to meet these requirements, a balance valve that can be adjusted in both directions is required. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a balance valve capable of bidirectional pressure regulation, which overcomes the shortcomings of conventional balance va...

AI Technical Summary

Problems solved by technology

[0002] At present, the general-purpose balance valve can only be operated on one side. In the case of both internal and external pressure changes, the one-way operation balance valve has certain limitations. Although this problem can be solved by connecting the one-way balance valve in reverse, this will cause Extra volume and mass

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