Centrifugal pump casing relief system
AssigneeApplied Drives & Systems, Inc.
InventorLouis Zacherl
Life of this patent
Estimating the term…
Abstract
In a fluid flow network including a centrifugal pump, a system and kit for monitoring said centrifugal pump and relieving the pump of fluid when the pump is operating at no-flow conditions. The system comprises a fluid conduit connected to the pump, at least one sensor for indicating when the pump is operating at no-flow conditions. The sensor is selected from the group consisting of: temperature sensors, pressure sensors, and motor current sensors. The system has a fluid control means located in the fluid conduit. An electric snap-action valve is included that has an inlet connected to the fluid conduit and an outlet and a diaphragm. The diaphragm is movable between a first position and a second position. A power supply is included.
Claims19
In a fluid flow network including a centrifugal pump, a system for monitoring said centrifugal pump and relieving said pump of fluid when said pump is operating at no-flow conditions, said system comprising:
- a fluid conduit connected to said pump;
- at least one sensor for indicating when said pump is operating at said no-flow conditions, said sensor intersecting said fluid conduit, said sensor selected from the group consisting of:
- temperature sensors, pressure sensors, and motor current sensors;
- a fluid control means located within said fluid conduit;
- an electric snap-action valve having an inlet connected to said fluid conduit and an outlet and a diaphragm, said diaphragm having a first position and a second position;
- and
- a power supply;
- said power supply, said sensor and said electric snap-action valve forming an electrical circuit, said electrical circuit activating said snap-action valve to move said valve from said first position to said second position.
A method for monitoring a centrifugal pump within a fluid flow network and relieving said pump of deleterious effects caused by an increased pressure and/or temperature in said pump, said pump communicating with a fluid release valve connected to a fluid conduit, said method comprising:
- selecting a sensor to monitor a variable of said pump;
- providing a fluid control device;
- providing an electrical solenoid operated valve having an inlet connected to said fluid conduit and an outlet and a solenoid operated diaphragm, said diaphragm having a first position and a second position;
- providing a power supply;
- attaching said sensor to said fluid conduit or said network;
- attaching said fluid control device and said solenoid operated valve to said fluid conduit;
- forming an electrical circuit by attaching said sensor and the solenoid operated valve to said power supply;
- and
- moving said diaphragm from said first position to said position second position by completing said electrical circuit to the solenoid of said solenoid operated valve.
A kit to be used for monitoring the deleterious effects of increased pressure and/or temperature within a centrifugal pump, said kit comprising:
- at least one electronic sensor to monitor a variable of the centrifugal pump, said variable being selected from the group consisting of:
- temperature, pressure, and motor current;
- a fluid control device;
- an electronic snap-action valve;
- a power supply;
- and
- electrical connectors for connecting said sensor, said power supply, and said electronic snap-action valve.
Dependencies are inferred from the claim text.