Sensing arrangement for valves
AssigneeEmerson Automation Solutions Final Control US LP
InventorVishwa Kalyanasundaram
Life of this patent
Estimating the term…
Abstract
A sensing arrangement for a relief valve having a valve body can include a valve body engagement member and a first sensor. The valve body engagement member can be secured to the valve body proximate to a valve seat of the relief valve. The first sensor can be in communication with the valve seat via the valve body engagement member. The first sensor can be configured to detect a valve event via detection of localized pressure changes at the valve seat.
Claims19
A sensing arrangement for a relief valve having a valve body, the sensing arrangement comprising:
- a formed port in the valve body downstream of a valve seat of the relief valve and upstream of an outlet of the valve body, relative to a flow path through the valve body from the valve seat to the outlet;
- a valve body engagement member configured as a blowdown adjustment set screw configured to adjust a blowdown pressure of the relief valve and secured to the valve body at the formed port, in fluid communication with the flow path through the formed port;
- and
- a first sensor in fluid communication with the flow path through the valve body engagement member to detect a valve event at the valve seat.
A blowdown adjustment set screw for a relief valve, the blowdown adjustment set screw comprising:
- a screw body;
- a valve-engaging portion disposed at a first end of the screw body and configured to engage a blowdown adjustment system of the relief valve to adjust a blowdown of the relief valve;
- a mounting portion disposed at a second end of the screw body opposite the valve-engaging portion and configured to engage one or more sensors to place the one or more sensors in communication with flow across a valve seat of the relief valve;
- and
- a sensing port extending through the screw body between the valve-engaging portion and the mounting portion, the sensing port including a first opening at the mounting portion and a second opening at the valve-engaging portion sized to receive pressure signals from the flow corresponding to a valve event at the valve seat.
A method for sensing a valve event in a relief valve, the relief valve having a valve body with a valve inlet and a valve outlet, the method comprising:
- inserting a blowdown adjustment set screw, configured to adjust a blowdown pressure of the relief valve, through a formed port in the valve body so that a valve-engaging portion of the blowdown adjustment set screw is disposed adjacent to a valve seat and in a flow path of the relief valve, and a sensor mounting portion of the blowdown adjustment set screw extends outside of the valve body;
- and securing one or more sensors to the sensor mounting portion of the blowdown adjustment set screw, the one or more sensors being thereby configured to detect a valve event via fluid communication with the flow path through the blowdown adjustment set screw to provide an indication of a valve event for the relief valve.
Dependencies are inferred from the claim text.