Anti-ejection rain blocking cap

Abstract

The invention provides an anti-ejection rain blocking cap. The anti-ejection rain blocking cap is arranged on a safety valve of an outdoor pressure container. The anti-ejection rain blocking cap comprises an umbrella cap, a movable barrel connected with the umbrella cap through a supporting frame and a fixed barrel arranged on the movable barrel in a sleeved mode. An anti-ejection pin is arranged on the upper portion of the wall of the fixed barrel. The movable barrel is provided with an opening matched with the anti-ejection pin. When the movable barrel is installed in the fixed barrel, the anti-ejection pin can pass through the opening. The anti-ejection rain blocking cap can block rain and snow and prevent the safety valve from being corroded or frozen, avoid the influence on the safety valve from the external weather, and be prevented from being carried away along with media flushed out through high pressure when the safety valve automatically releases pressure.

Description

technical field [0001] The invention relates to the technical field of outdoor pressure vessel protection, in particular to an anti-spray rain cap. Background technique [0002] Outdoor pressure vessels are common equipment in major oil fields and industrial and mining enterprises in my country. In order to ensure their safe operation, safety valves are installed on the outside of the pressure vessels. The purpose is to automatically release the pressure when there are production problems or the pressure is too high. However, the accidents that the safety valve of the pressure vessel located outdoors cannot be opened in time due to high pressure are not uncommon. The main reasons for the failure of the safety valve of the pressure vessel to open and cause lame pressure accidents include: [0003] 1. At present, the pressure vessels used by major oil fields and industrial and mining enterprises in my country are equipped with safety valves to ensure their safe production. Mos...

AI Technical Summary

Problems solved by technology

[0003] 1. At present, the pressure vessels used by major oil fields and industrial and mining enterprises in my country are equipped with safety valves to ensure their safe production. Most of the pressure vessels are installed in outdoor exposure places, and the direction of the outlet pipe of the safety valve is first horizontal and then In bad weather, rain and snow can easily enter, causing corrosion or freezing between the safety valve core and valve seat. If the p

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