Balance valve and safety valve set used for buoyancy regulation system

Abstract

The invention discloses a balance valve and safety valve set used for a buoyancy regulation system. The balance valve and safety valve set comprises a valve body, a balance valve assembly, a safety valve assembly and a valve deck. The balance valve assembly is arranged at the position of a first through hole of the valve body. The balance valve assembly comprises a first valve rod, a first valve seat, a screw plug, a first valve element assembly and a first spring. The safety valve assembly is arranged at the position of a second through hole of the valve body. The safety valve assembly comprises a second valve rod, a second valve seat, a second spring seat, a second valve element assembly, a second spring, a sealing cover and a regulation threaded rod. An inner cavity of the valve deck communicates with a first passageway and a second passageway. A main valve cavity is formed by the inner cavity of the valve deck, the first passageway and the second passageway together. A first pipeline connector is arranged on the valve deck. A second pipeline connector, a third pipeline connector and a fourth pipeline connector are arranged on the valve body. The valve element assemblies in thebalance valve and safety valve set have an automatic aligning function, leakproofness is good, and meanwhile by means of the effect of limiting spherical hinges, separation of the valve elements and valve rods is avoided.

Description

technical field [0001] The invention belongs to the technical field of hydraulic valves, and more specifically relates to a balanced safety valve group used in a buoyancy adjustment system. Background technique [0002] With the development of society and science and technology, human beings' demand for the exploration and utilization of marine resources continues to grow. Submersibles have gradually been used in the development of marine resources due to their flexibility and ability to work underwater for a long time, and are also widely used in military affairs. Uses, such as reconnaissance, mine laying, mine elimination, and submarine rescue. Therefore, the research and development of underwater robots is of great significance to many aspects such as protecting the marine environment, developing marine resources, forecasting marine disasters, safeguarding national marine rights and interests, and developing the national economy. [0003] The balance valve and safety val...

AI Technical Summary

Problems solved by technology

Commonly used spool structures include ball valve type and cone valve type. Due to the characteristics of the spherical spool adapting to the valve port, the ball valve type has the advantage of good sealing. However, because the ball spool is separated from the spool seat, the ball valve spool is in the The dynamic response when opening is poor, which may even cause the ball valve core to separate from the valve seat and cause the valve port seal to fail

The dynamic performance of the cone valve spool is good, but because the spool and the valve port do not have the self-adaptive function, the sealing performance is poor.

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