Remote triggering system and retrofit kit for thermal-pressure relief devices
AssigneeDynetek Industries Ltd.
InventorHeinz Portmann
Life of this patent
Estimating the term…
Abstract
A heat-responsive fuse cord is positioned in the proximity of a pressure vessel and is thermally coupled to a thermal-pressure relief device which is in communication with the pressurized contents of the vessel. When ignited the fuse cord burns to a thermal coupler, transferring the heat to the thermal actuator of the TPRD. In a kit form, fuse cord and a thermal coupler provide an economical remote and retrofit triggering system for TPRD's having an otherwise limited environment of influence.
Claims25
A thermally responsive triggering system for a pressure vessel comprising:
- a thermally actuated pressure relief device in communication with the interior of the vessel and having a thermal actuator;
- and
- a length of thermally-actuated fuse cord positioned in the proximity of the vessel and being thermally coupled to the thermal actuator.
A method of fitting a vessel having a thermal-pressure relief valve with remote thermal trigger, the thermal-pressure relief valve having a thermal actuator, the method comprising the steps of:
- providing a length of thermally-actuated fuse cord in the proximity of the vessel;
- and
- thermally coupling the fuse cord along its length to the relief valve's thermal actuator.
A remote thermal triggering kit for a pressure vessel having a thermal-pressure relief valve having a thermal actuator, the kit comprising the following components in packaged form:
- one or more lengths of thermally-actuated fuse cord;
- and
- means for thermally coupling the fuse cord to the thermal actuator.
A remote thermal triggering kit for a pressure vessel having a thermal-pressure relief valve having a thermal actuator, the kit comprising the following components in packaged form:
- one or more lengths of thermally-actuated fuse cord;
- and
- tape for securing the fuse cord in the proximity of the vessel.
A remote thermal triggering kit for a pressure vessel having a thermal-pressure relief valve having a thermal actuator, the kit comprising the following components in packaged form:
- one or more lengths of thermally-actuated fuse cord;
- and
- an expandable mesh sleeve for securing the fuse cord in the proximity of the vessel, the fuse cord interwoven into the mesh.
Dependencies are inferred from the claim text.