A seawater hydraulic two-position three-way solenoid valve for deep sea

Abstract

The invention discloses a seawater hydraulic two-position three-way electromagnetic valve for deep sea. The valve comprises coil assemblies and a valve element assembly. The coil assemblies are installed on the two sides of the upper portion of the valve element assembly. Each coil assembly comprises a coil shell end cap, a coil and a coil shell, wherein the coil shell end cap and the coil shell are connected through a fixing bolt and a locking nut. The valve element assembly comprises a valve element base, a valve body, a lower stop block, a valve element spring, a movable iron core, an iron core cylinder, an iron core spring, an upper stop block and a static iron core, wherein the valve element base is connected and installed on the upper side of the valve body through threads, and the iron core cylinder is welded to the upper portion of the valve element base. The electromagnetic valve is made of titanium alloy or 316L stainless steel and has excellent seawater corrosion resistance, seawater or fresh water can be used as mediums, and the valve can be completely immersed in water for use. The coils and other parts can bear high pressure being at least 60MPa, the requirement for high pressure resistance is met, and clad layer thickening is conducted on an electromagnet so that the electromagnet can be immersed in the seawater or the fresh water for use.

Description

technical field [0001] The invention relates to a solenoid valve, in particular to a seawater hydraulic two-position three-way solenoid valve for deep sea. Background technique [0002] Due to the characteristics of ultra-high pressure, high corrosiveness and heavy pollution in the deep sea environment, when the ordinary hydraulic system is applied in this environment, the sediment in the water will cause serious erosion and scraping of the electromagnet, valve core and valve body. At the same time, sand entering the valve body will cause the valve core to be stuck. When the two-position three-way solenoid valve used on land is directly used in the deep sea, the solenoid valve will fail rapidly or cannot be used at all due to reasons such as insufficient shell strength, poor sealing effect, and non-compressive coil. Contents of the invention [0003] The object of the present invention is to provide a high-pressure-resistant and corrosion-resistant deep-sea seawater hydra...

AI Technical Summary

Problems solved by technology

[0002] Due to the characteristics of ultra-high pressure, high corrosiveness and heavy pollution in the deep sea environment, when the ordinary hydraulic system is applied in this environment, the sediment in the water will cause serious erosion and scraping of the electromagnet, valve core and valve body. At the same time, sand entering the valve body will cause the valve core to be stuck.

When the two-position three-way solenoid valve used on land is directly used in deep sea, the solenoid valve will fail rapidly or cannot be used at all due to reasons such as insufficient shell strength, poor sealing effect, and non-compressive coil.

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