Conduit protection system and method

摘要

A conduit protection system, comprising: a conduit for carrying a fluid; a sealed vessel surrounding the conduit along a protected zone of the conduit; and a valve moveable between a first position for obstructing fluid flow through the protected zone of the conduit and a second position for enabling fluid flow through the protected zone of the conduit, wherein the valve is biased to the first position, and wherein the valve is fluidically coupled to the sealed vessel such that a positive pressure within the sealed vessel is operable to move the valve to the second position against the bias. Also, a method for protecting a fluid carrying conduit.

主权项

1. A conduit protection system, comprising:
a conduit for carrying a fluid; a sealed vessel surrounding the conduit along a protected zone of the conduit; and a valve moveable between a first position for obstructing fluid flow through the protected zone of the conduit and a second position for enabling fluid flow through the protected zone of the conduit, wherein the valve is biased to the first position, and wherein the valve is fluidically coupled to the sealed vessel such that a positive pressure within the sealed vessel is operable to move the valve to the second position against the bias, wherein the valve includes a valve body moveable within a valve chamber, wherein a first portion of the valve chamber on one side of the valve body is fluidically coupled to the sealed vessel, wherein the valve body is biased to the first position by a spring, wherein the spring is housed within a second portion of the valve chamber on the opposite side of the valve body to the first portion, and wherein the conduit protection system further comprises a pressure relief channel through the valve body adapted to fluidically couple the second portion of the valve chamber to the conduit when the valve is in the first position and to not fluidically couple the second portion of the valve chamber to the conduit when the valve is in the second position.