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US 9,816,633 B2Granted
Depressurization system for an electrical transformer
AssigneeSentry Depressurization Systems, Inc.
InventorWilliam R. Kendrick
Life of this patent
Estimating the term…
Abstract
A depressurization system for an electrical transformer includes a pressure release assembly configured to be in fluid communication with a chamber of the electrical transformer. The pressure release assembly includes a rupture pin valve. The system may include an evacuation assembly having a blast chamber. The rupture pin valve includes a pin configured to buckle in response to a predetermined pressure applied to a surface of the rupture pin valve.
Claims19
A depressurization system for an electrical transformer comprising:
- a pressure release assembly configured to be in fluid communication with a chamber of an electrical transformer;
- a horizontally extending blast chamber coupled to the pressure release assembly and in selective fluid communication with the chamber, wherein the blast chamber is configured to reduce a flow restriction within the depressurization system as fluid flows through the blast chamber;
- and
- an evacuation pipe in fluid communication with the blast chamber, wherein the evacuation pipe is configured to eject fluid flowing through the evacuation pipe to the surrounding atmosphere in response to an overpressurization of the chamber of the electrical transformer;
- wherein the pressure release assembly comprises a rupture pin valve comprising a rupture pin valve body coupled to the blast chamber, wherein the rupture pin valve body is configured to provide a rupture pin chamber sealed from the blast chamber to access a rupture pin of the rupture pin valve.
2 more elements
A depressurization system for an electrical transformer comprising:
- a pressure release assembly configured to be in fluid communication with a chamber of an electrical transformer;
- a blast chamber coupled to the pressure release assembly and in selective fluid communication with the chamber, wherein the blast chamber is configured to reduce a flow restriction within the depressurization system as fluid flows through the blast chamber;
- and
- an evacuation pipe coupled to the blast chamber and comprising a check valve disposed at a terminal end of the evacuation pipe, wherein the check valve is configured to restrict fluid flow into the depressurization system from the surrounding atmosphere;
- wherein the pressure release assembly comprises a rupture pin valve comprising a rupture pin valve body coupled to the blast chamber, wherein the rupture pin valve body is configured to provide a rupture pin chamber sealed from the blast chamber to access a rupture pin of the rupture pin valve.
2 more elements
A depressurization system for an electrical transformer comprising:
- a pressure release assembly configured to be in fluid communication with a chamber of an electrical transformer;
- a blast chamber coupled to the pressure release assembly and in selective fluid communication with the chamber, wherein the blast chamber is configured to reduce a flow restriction within the depressurization system as fluid flows through the blast chamber;
- a knife valve coupled between the pressure release assembly and the chamber of the electrical transformer, wherein the knife valve includes an open position providing fluid communication between the chamber of the electrical transformer and the pressure release assembly and a closed position sealing the chamber from the pressure release assembly;
- and
- an evacuation pipe in fluid communication with the blast chamber, wherein the evacuation pipe is configured to eject fluid flowing through the evacuation pipe to the surrounding atmosphere in response to an overpressurization of the chamber of the electrical transformer;
- wherein the pressure release assembly comprises a rupture pin valve comprising a rupture pin valve body coupled to the blast chamber, wherein the rupture pin valve body is configured to provide a rupture pin chamber sealed from the blast chamber to access a rupture pin of the rupture pin valve.
3 more elements
Dependencies are inferred from the claim text.