A sensor assembly for accurately measuring the temperature of a process fluid flowing within process tubing is disclosed. A thermocouple sensor can be configured within a protective sheath with leads protruding from the sheath. A gland-like structure can be coupled to the sheath or machined integral
A sensor assembly for accurately measuring the temperature of a process fluid flowing within process tubing is disclosed. A thermocouple sensor can be configured within a protective sheath with leads protruding from the sheath. A gland-like structure can be coupled to the sheath or machined integral to the sheath. The sensor assembly can be coupled to a closed loop. The sensor can be positioned within or in close proximity to the fluid flowing in the closed loop, and the sensor accurately measures the temperature of the process fluid flowing in the closed loop. The sensor assembly is easily assembled and/or disassembled allowing the sensor to be maintained.
대표청구항▼
What is claimed is: 1. A system for monitoring a processing fluid temperature within a high-pressure processing system, the system comprising: a. a recirculation loop comprising a high pressure processing chamber and a high pressure recirculation system coupled to the high pressure processing chamb
What is claimed is: 1. A system for monitoring a processing fluid temperature within a high-pressure processing system, the system comprising: a. a recirculation loop comprising a high pressure processing chamber and a high pressure recirculation system coupled to the high pressure processing chamber, wherein the processing fluid flows through the recirculation loop; b. a high-pressure fluid supply system coupled to the recirculation loop and comprising means for supplying fluid to the recirculation loop; c. a process chemistry supply system coupled to the recirculation loop and comprising means for supplying process chemistry to the recirculation loop; d. a sensor assembly coupled to the recirculation loop for monitoring the temperature of the processing fluid flowing through the recirculation loop, wherein the sensor assembly is configured to operate at high pressure, wherein the sensor assembly comprises: i. a sensor subassembly including a sensor, a body coupled to the sensor, and an electrical connection means coupled to the body; ii. a protective sheath having a tip portion, a transition portion, and an annular ring portion, wherein the sensor subassembly is at least partially coupled internally to the protective sheath and the sensor is mounted within the tip portion of the protective sheath; and iii. a gland assembly comprising: (1) a gasket positioned around the protective sheath, wherein the gasket comprises a first side and a second side; (2) a first sealing gland positioned around the protective sheath, wherein the first sealing gland is removably coupled to the first side of the gasket; (3) a second sealing gland positioned around the protective sheath, wherein the second sealing gland is removably coupled to the second side of the gasket; (4) a first nut with threading, the first nut removably coupled to the first sealing gland; and (5) a second nut with threading, the second nut removably coupled to the second gland, wherein the second nut and the first nut are screwed together, thereby forcing the first gland and the second gland to compress upon the gasket, thereby sealing the gland assembly; e. a controller coupled to the high pressure processing chamber, the recirculation system, the high-pressure fluid supply system, the process chemistry supply system, and the sensor assembly. 2. The system as claimed in claim 1, wherein the protective sheath, the first sealing gland and the second sealing gland comprise stainless steel. 3. The system as claimed in claim 1, wherein the tip portion of the protective sheath has a length between approximately ten millimeters and approximately fifty millimeters, and wherein the tip portion of the protective sheath has an outside diameter between approximately two millimeters and approximately ten millimeters. 4. The system as claimed in claim 1, wherein the sensor assembly is configured to operate at pressures above 3000 psi. 5. The system as claimed in claim 1, wherein the processing fluid comprises gaseous, liquid, supercritical, or near-supercritical carbon dioxide, or a combination of two or more thereof. 6. The system as claimed in claim 1, wherein the process chemistry is selected from among a cleaning agent, a rinsing agent, a curing agent, a drying agent, an etching agent, and a combination of two or more thereof. 7. The system as claimed in claim 1, wherein the sensor is selected from among a thermocouple, a temperature-indicating resistor, a radiation type temperature sensor, a thermistor, a thermometer, a pyrometer, a micro-electromechanical (MEM) device, and a resistance temperature detector (RTD). 8. The system as claimed in claim 7, wherein the sensor subassembly further comprises potting compound. 9. The system as claimed in claim 7, wherein the controller can be used to determine fluid pressure and fluid flow rate. 10. A system for monitoring a processing fluid temperature within a high-pressure processing system, the system comprising: a recirculation loop comprising a high pressure processing chamber and a high pressure recirculation system coupled to the high pressure processing chamber, wherein the processing fluid flows through the recirculation loop; a high-pressure fluid supply system coupled to the recirculation loop and comprising means for supplying fluid to the recirculation loop; a process chemistry supply system coupled to the recirculation loop and comprising means for supplying process chemistry to the recirculation loop; a sensor assembly coupled to the recirculation loop for monitoring the temperature of the processing fluid flowing through the recirculation loop, wherein the sensor assembly comprises: a gland assembly including a first sealing gland, a gasket removably coupled to the first sealing gland, a second sealing gland removably coupled to the gasket, a first nut removably coupled to the first sealing gland, a second nut removably coupled to the second sealing gland and the first nut; a sensor subassembly including a sensor, a body coupled to the sensor, an electrical connection means coupled to the body, and a protective sheath coupled to the first sealing gland, wherein the sensor and the body are coupled internally to the protective sheath; and a flow assembly including a T-shaped fitting having a first section coupled to the second sealing gland and a second section including means for coupling the sensor assembly into the recirculation loop; and a controller coupled to the high pressure processing chamber, the recirculation system, the high-pressure fluid supply system, the process chemistry supply system, and the sensor assembly wherein the controller comprises means for obtaining temperature data for the processing fluid during a from the sensor assembly, means for comparing the temperature data to a threshold value, means for creating a fault condition when the temperature data is substantially greater than or substantially less than the threshold value, and means for creating a non-fault condition when the temperature data is approximately equal to the threshold value. 11. The system as claimed in claim 10, wherein the first sealing gland comprises a raised annular ring on one end that can engage one side of the gasket and the second sealing gland comprises a raised annular ring on one end that can engage a second side of the gasket. 12. The system as claimed in claim 10, wherein the first sealing gland is welded to an annular ring portion of the protective sheath. 13. The system as claimed in claim 10, wherein the flow assembly comprises a flow passageway and the tip portion of the protective sheath protrudes into the flow passageway. 14. The system as claimed in claim 10, wherein the sensor assembly is configured to operate at pressures above 3000 psi. 15. The system as claimed in claim 10, wherein the processing fluid comprises gaseous, liquid, supercritical, or near-supercritical carbon dioxide, or a combination of two or more thereof. 16. The system as claimed in claim 10, wherein the process chemistry is selected from among a cleaning agent, a rinsing agent, a curing agent, a drying agent, an etching agent, and a combination of two or more thereof. 17. The system as claimed in claim 10, wherein the sensor is selected from among a thermocouple, a temperature-indicating resistor, a radiation type temperature sensor, a thermistor, a thermometer, a pyrometer, a micro-electromechanical (MEM) device, and a resistance temperature detector (RTD). 18. The system as claimed in claim 17, wherein the sensor subassembly further comprises potting compound. 19. The system as claimed in claim 17, wherein the controller can be used to determine fluid pressure and fluid flow rate. 20. A system for monitoring a processing fluid temperature within a high-pressure processing system, the system comprising: a recirculation loop comprising a high pressure processing chamber and a high pressure recirculation system coupled to the high pressure processing chamber, wherein the processing fluid flows through the recirculation loop; a high-pressure fluid supply system coupled to the recirculation loop and comprising means for supplying fluid to the recirculation loop; a process chemistry supply system coupled to the recirculation loop and comprising means for supplying process chemistry to the recirculation loop; a sensor assembly coupled to the recirculation loop for monitoring the temperature of the processing fluid flowing through the recirculation loop, wherein the sensor assembly comprises: a sensor subassembly including a sensor, a body coupled to the sensor, an electrical connection means coupled to the body, and a protective sheath, wherein the sensor and the body are coupled internally to the protective sheath and the sensor is mounted within a tip portion of the protective sheath; a flow assembly comprising a T-shaped element including a first section having a sealing feature, a holding surface, and a mating feature configured to receive a portion of the sensor subassembly and a second section including means for coupling the sensor assembly into the recirculation loop; and a gland assembly including a sealing gland having a mating surface, a gasket removably coupled to the sealing gland and the sealing feature of the T-shaped element, and a nut removably coupled to the mating surface of the sealing gland and the holding surface of the T-shaped element; and a controller coupled to the high pressure processing chamber, the recirculation system, the high-pressure fluid supply system, the process chemistry supply system, and the sensor assembly wherein the controller comprises means for obtaining temperature data for the processing fluid during a from the sensor assembly, means for comparing the temperature data to a threshold value, means for creating a fault condition when the temperature data is substantially greater than or substantially less than the threshold value, and means for creating a non-fault condition when the temperature data is approximately equal to the threshold value. 21. The system as claimed in claim 20, wherein the sealing gland is welded to an annular ring portion of the protective sheath. 22. The system as claimed in claim 20, wherein the sensor assembly is configured to operate at pressures above 3000 psi. 23. The system as claimed in claim 20, wherein the processing fluid comprises gaseous, liquid, supercritical, or near-supercritical carbon dioxide, or a combination of two or more thereof. 24. The system as claimed in claim 20, wherein the process chemistry is selected from among a cleaning agent, a rinsing agent, a curing agent, a drying agent, an etching agent, and a combination of two or more thereof. 25. The system for monitoring a processing fluid temperature within a high-pressure processing system according to claim 20 wherein the sealing gland is integrally formed with the protective sheath. 26. The system as claimed in claim 20, wherein the flow assembly comprises a flow passageway and the tip portion of the protective sheath protrudes into the flow passageway. 27. The system as claimed in claim 26, wherein the flow assembly comprises an inlet element coupled to a first end of the flow passageway and an outlet element coupled to a second end of the flow passageway. 28. The system as claimed in claim 20, wherein the sensor is selected from among a thermocouple, a temperature-indicating resistor, a radiation type temperature sensor, a thermistor, a thermometer, a pyrometer, a micro-electromechanical (MEM) device, and a resistance temperature detector (RTD). 29. The system as claimed in claim 28, wherein the sensor subassembly further comprises potting compound. 30. The system as claimed in claim 28, wherein the controller can be used to determine fluid pressure and fluid flow rate. 31. A system for monitoring a processing fluid temperature within a high-pressure processing system, the system comprising: a recirculation loop comprising a high pressure processing chamber and a high pressure recirculation system coupled to the high pressure processing chamber, wherein the processing fluid flows through the recirculation loop; a high-pressure fluid supply system coupled to the recirculation loop and comprising means for supplying fluid to the recirculation loop; a process chemistry supply system coupled to the recirculation loop and comprising means for supplying process chemistry to the recirculation loop; a sensor assembly coupled to the recirculation loop for monitoring the temperature of the processing fluid flowing through the recirculation loop, wherein the sensor assembly comprises: a sensor subassembly including a sensor, a body coupled to the sensor, an electrical connection means coupled to the body, and a protective sheath including a sealing feature and a mating surface, wherein the sensor and the body are coupled internally to the protective sheath and the sensor is mounted within a tip portion of the protective sheath; a flow assembly comprising a T-shaped element including a first section having a sealing feature, a holding surface, and a mating feature configured to receive a portion of the sensor subassembly and a second section including means for coupling the sensor assembly into the recirculation loop; and a coupling assembly including a gasket removably coupled to the sealing feature of the protective sheath and the sealing feature of the T-shaped element, and a nut removably coupled to the mating surface of the protective sheath and the holding surface of the T-shaped element; and a controller coupled to the high pressure processing chamber, the recirculation system, the high-pressure fluid supply system, the process chemistry supply system, and the sensor assembly wherein the controller comprises means for obtaining temperature data for the processing fluid during a from the sensor assembly, means for comparing the temperature data to a threshold value, means for creating a fault condition when the temperature data is substantially greater than or substantially less than the threshold value, and means for creating a non-fault condition when the temperature data is approximately equal to the threshold value. 32. The system as claimed in claim 31, wherein the flow assembly comprises a flow passageway and the tip portion of the protective sheath protrudes into the flow passageway. 33. The system as claimed in claim 32, wherein the flow assembly comprises an inlet element coupled to a first end of the flow passageway and an outlet element coupled to a second end of the flow passageway. 34. A system for monitoring a processing fluid temperature within a high-pressure processing system, the system comprising: a. a recirculation loop comprising a high pressure processing chamber and a high pressure recirculation system coupled to the high pressure processing chamber, wherein the processing fluid flows through the recirculation loop; b. a high-pressure fluid supply system coupled to the recirculation loop and comprising means for supplying fluid to the recirculation loop; c. a process chemistry supply system coupled to the recirculation loop and comprising means for supplying process chemistry to the recirculation loop; d. a sensor assembly coupled to the recirculation loop for monitoring the temperature of the processing fluid flowing through the recirculation loop, wherein the sensor assembly is configured to operate at high pressure, wherein the sensor assembly comprises: i. a sensor subassembly including a sensor, a body coupled to the sensor, and an electrical connection means coupled to the body; ii. a protective sheath having a tip portion, a transition portion, and an annular ring portion, wherein the sensor subassembly is at least partially coupled internally to the protective sheath and the sensor is mounted within the tip portion of the protective sheath; and iii. a gland assembly including: (1) a gasket positioned around the protective sheath, wherein the gasket comprises a first side and a second side; (2) a first sealing gland positioned around the protective sheath, wherein the first sealing gland is removably coupled to the first side of the gasket; (3) a second sealing gland positioned around the protective sheath, wherein the second sealing gland is removably coupled to the second side of the gasket; (4) a first nut with threading, the first nut removably coupled to the first sealing gland; and (5) a second nut threading, the second removably coupled to the second gland, wherein the second nut and the first nut are screwed, thereby forcing the first gland and the second gland to compress upon the gasket, thereby sealing the gland assembly; and iv. a controller coupled to the high pressure processing chamber, the recirculation system, the high-pressure fluid supply system, the process chemistry supply system, and the sensor assembly wherein the controller comprises means for obtaining temperature data for the processing fluid during a from the sensor assembly, means for comparing the temperature data to a threshold value, means for creating a fault condition when the temperature data is substantially greater than or substantially less than the threshold value, and means for creating a non-fault condition when the temperature data is approximately equal to the threshold value. 35. A system for monitoring a processing fluid temperature within a high-pressure processing system, the system comprising: a recirculation loop comprising a high pressure processing chamber and a high pressure recirculation system coupled to the high pressure processing chamber, wherein the processing fluid flows through the recirculation loop; a high-pressure fluid supply system coupled to the recirculation loop and comprising means for supplying fluid to the recirculation loop; a process chemistry supply system coupled to the recirculation loop and comprising means for supplying process chemistry to the recirculation loop; a sensor assembly coupled to the recirculation loop for monitoring the temperature of the processing fluid flowing through the recirculation loop, wherein the sensor assembly comprises: a gland assembly including a protective sheath, a first sealing gland coupled to the protective sheath, a gasket removably coupled to the first sealing gland, a second sealing gland removably coupled to the gasket, a first nut removably coupled to the first sealing gland, a second nut removably coupled to the second sealing gland and the first nut; a sensor subassembly including a sensor, a body coupled to the sensor, and an electrical connection means coupled to the body, wherein the sensor subassembly is coupled internally to the protective sheath; and a flow assembly including a T-shaped fitting having a first section coupled to the second sealing gland and a second section including means for coupling the sensor assembly into the recirculation loop; and a controller coupled to the high pressure processing chamber, the recirculation system, the high-pressure fluid supply system, the process chemistry supply system, and the sensor assembly wherein the controller comprises means for obtaining temperature data for the processing fluid during a from the sensor assembly, means for comparing the temperature data to a threshold value, means for creating a fault condition when the temperature data is substantially greater than or substantially less than the threshold value, and means for creating a non-fault condition when the temperature data is approximately equal to the threshold value.
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