Patent ID: 9684293
Date: 2017-06-20
CPC Classifications: F16K,G01F,G05B

Claim:
1. A relief valve monitoring system for monitoring a relief valve having an upstream relief valve inlet connected to a pressure vessel containing a pressurized gas, a downstream relief valve outlet connected to a collection header, wherein the relief valve has a specified upstream valve threshold pressure for opening the relief valve and a predetermined flow rate as a function of upstream pressure at the upstream relief valve inlet when the relief valve is opened in response to the upstream pressure exceeding the specified upstream valve threshold pressure, the monitoring system comprising: a. an upstream pressure sensor in communication with the upstream relief valve inlet for monitoring the upstream pressure to the relief valve and producing an upstream pressure sensor signal indicative of the upstream pressure; b. a downstream pressure sensor in communication with the downstream relief valve outlet for monitoring downstream pressure from the relief valve and producing a downstream pressure sensor signal indicative of the downstream pressure at the downstream relief valve outlet; and c. a control module programmed to calculate the amount of gas released when the relief valve opens in response to the upstream pressure exceeding the specified upstream valve threshold pressure, the steps including: