An electronic regulator includes an inlet valve coupled to an inlet port, the inlet port configured to receive a supply pressure, and an exhaust valve coupled to an exhaust port, the exhaust port configured to release a pilot pressure when the exhaust valve is open. The electronic regulator also inc
An electronic regulator includes an inlet valve coupled to an inlet port, the inlet port configured to receive a supply pressure, and an exhaust valve coupled to an exhaust port, the exhaust port configured to release a pilot pressure when the exhaust valve is open. The electronic regulator also includes a pilot pressure output pneumatically coupled to the inlet valve and exhaust valve and configured to be coupled to an external process control device to provide the pilot pressure to the external process control device. A setpoint input coupled to both the inlet valve and the exhaust valve receives a setpoint signal indicative of a setpoint value, and the electronic regulator operates the inlet valve and the exhaust valve to control the pilot pressure according to the setpoint value. Further, the electronic regulator includes a vent valve coupled to a venting port and pneumatically coupled to the pilot pressure output. The venting port is configured to release the pilot pressure according to the safety control signal.
대표청구항▼
1. An electronic regulator comprising: an inlet valve disposed within a regulator housing coupled to an inlet port, the inlet port configured to receive a supply pressure;an exhaust valve disposed within the regulator housing and coupled to an exhaust port, the exhaust port configured to release a p
1. An electronic regulator comprising: an inlet valve disposed within a regulator housing coupled to an inlet port, the inlet port configured to receive a supply pressure;an exhaust valve disposed within the regulator housing and coupled to an exhaust port, the exhaust port configured to release a pilot pressure when the exhaust valve is open;a pilot pressure output pneumatically coupled to the inlet valve and exhaust valve, the pilot pressure output configured to be coupled to an external process control device to provide the pilot pressure to the external process control device;a setpoint input coupled to both the inlet valve and the exhaust valve and configured to receive a setpoint signal indicative of a setpoint value, wherein the electronic regulator operates the inlet valve and the exhaust valve to control the pilot pressure according to the setpoint value;a vent valve disposed within the regulator housing and coupled to a venting port and pneumatically coupled to the pilot pressure output, the inlet valve, and the exhaust valve, the venting port configured to release the pilot pressure when the vent valve is open; anda safety control input coupled to the vent valve and configured to receive a safety control signal, wherein the vent valve operates to release the pilot pressure, according to the safety control signal, when the inlet valve and the exhaust valve are in a closed configuration. 2. The electronic regulator of claim 1, wherein the safety control input is coupled to a safety control source, the safety control source generating the safety control signal, and wherein the setpoint input is coupled to a setpoint source different from the safety control source, the setpoint source generating the setpoint signal indicative of the setpoint value. 3. The electronic regulator of claim 1, wherein the safety control input and the setpoint input are coupled to a setpoint source, the setpoint source generating both the setpoint signal indicative of the setpoint value and the safety control signal. 4. The electronic regulator of claim 1, wherein the vent valve operates to release the pilot pressure in the absence of the safety control signal. 5. The electronic regulator of claim 1, further comprising a feedback input configured to receive a feedback signal, wherein the electronic regulator operates the inlet valve and the exhaust valve to control the pilot pressure according to the setpoint value and the feedback signal. 6. The electronic regulator of claim 5, wherein the electronic regulator is a proportional-integral-derivative (PID) controller that operates the inlet valve and exhaust valve based on a control loop feedback mechanism. 7. The electronic regulator of claim 1, wherein the exhaust port and the venting port are coupled to an exhaust line for processing media released from the exhaust port and the venting port. 8. The electronic regulator of claim 1, further comprising a connection housing, wherein the connection housing encloses the couplings between (i) the vent valve and the safety control input, (ii) the inlet valve and the setpoint input, and (iii) the exhaust valve and the setpoint input. 9. The electronic regulator of claim 1, further comprising one or more lights disposed on one of a housing of the electronic regulator or the vent valve, the one or more lights indicating diagnostic information related to the shutoff signal. 10. A system for controlling a regulator outlet pressure, the system comprising: an electronic regulator housed in a regulator housing, the electronic regulator comprising: an inlet valve disposed within the regulator housing coupled to an inlet port, the inlet port configured to receive a supply pressure;an exhaust valve disposed within the regulator housing and coupled to an exhaust port, the exhaust port configured to release a pilot pressure when the exhaust valve is open;a pilot pressure output pneumatically coupled to the inlet valve and exhaust valve, the pilot pressure output coupled to an actuator to provide the pilot pressure to the actuator;a setpoint input coupled to both the inlet valve and the exhaust valve and configured to receive a setpoint signal indicative of a setpoint value, wherein the electronic regulator operates the inlet valve and the exhaust valve to control the pilot pressure according to the setpoint value;a vent valve disposed within the regulator housing and coupled to a venting port and pneumatically coupled to the pilot pressure output, the inlet valve, and the exhaust valve, the vent valve being disposed upstream of the venting port, the venting port configured to release the pilot pressure when the vent valve is open; anda safety control input coupled to the vent valve and configured to receive a safety control signal, wherein the vent valve operates to release the pilot pressure, according to the safety control signal, when the inlet valve and the exhaust valve are in a closed configuration; anda pressure regulator having a pressure regulator inlet valve, a pressure regulator outlet valve, and a control element, the pressure regulator coupled to the actuator such that the control element controls the regulator outlet pressure according to the pilot pressure of the electronic regulator. 11. The system of claim 10, wherein the safety control input is coupled to a safety control source, the safety control source generating the safety control signal, and wherein the setpoint input is coupled to a setpoint source different from the safety control source, the setpoint source generating the setpoint signal indicative of the setpoint value. 12. The system of claim 10, wherein the safety control input and the setpoint input are coupled to a setpoint source, the setpoint source generating both the setpoint signal indicative of the setpoint value and the safety control signal. 13. The system of claim 10, wherein the electronic regulator further comprises a feedback input configured to receive a feedback signal, wherein the electronic regulator operates the inlet valve and the exhaust valve to control the pilot pressure according to the setpoint value and the feedback signal. 14. The system of claim 10, wherein the exhaust port and the venting port are coupled to an exhaust line for processing media released from the exhaust port and the venting port. 15. The system of claim 10, wherein the electronic regulator further includes a connection housing, wherein the connection housing encloses the couplings between (i) the vent valve and the safety control input, (ii) the inlet valve and the setpoint input, and (iii) the exhaust valve and the setpoint input. 16. The system of claim 10, wherein the electronic regulator further includes one or more lights disposed on one of a housing of the electronic regulator or the vent valve, the one or more lights indicating diagnostic information related to the shutoff signal. 17. A method of venting a pilot pressure in an electronic regulator housed in a regulator housing, the method comprising: receiving at a setpoint input, from a setpoint source, a setpoint signal indicative of a setpoint value;controlling an inlet valve within the regulator housing and an exhaust valve within the regulator housing, based on the setpoint value, to produce a pilot pressure at a pilot pressure output of the electronic regulator, the pilot pressure output pneumatically coupled to the inlet valve and exhaust valve;providing the pilot pressure to an external process control device via the pilot pressure output;receiving, from a safety control source, a safety control signal; andcontrolling a vent valve within the regulator housing, according to the safety control signal, to release the pilot pressure through a venting port of the electronic regulator when the inlet valve and the exhaust valve are in a closed configuration. 18. The method of claim 17, wherein the setpoint source operates independently of the safety control source. 19. The method of claim 17, further comprising: receiving, from a feedback source, a feedback signal indicating a measured value of a controlled pressure; andcontrolling the inlet valve within the regulator housing and the exhaust valve within the regulator housing, based on the feedback signal and the setpoint value, to produce the pilot pressure at a pilot pressure output of the electronic regulator. 20. The method of claim 17, further comprising indicating, via one or more lights at the electronic regulator, diagnostic information related to the shutoff signal. 21. The method of claim 17, wherein controlling the vent valve, according to the safety control signal, to release the pilot pressure through a venting port of the electronic regulator comprises releasing the pilot pressure through the venting port in the absence of the safety control signal.
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이 특허에 인용된 특허 (9)
Best, Ronald, Device and method for regulating the pressure of a gas stream.
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