摘要:
Porous membrane contactors and/or their methods of manufacture and/or use are provided. In at least selected embodiments, the present invention is directed to flat panel hollow fiber or flat sheet membrane contactors and/or their methods of manufacture and/or use. In at least certain particular embodiments, the present invention is directed to hollow fiber array flat panel contactors, contactor systems, and/or their methods of manufacture and/or use. In at least particular possibly preferred embodiments, the contactor is adapted for placement in an air duct (such as an HVAC ductwork) and has a rectangular frame or housing enclosing at least one wound hollow fiber array or membrane bundle.
摘要:
A contained liquid membrane contactor includes a perforated center tube, first and second membrane mats each with a first and a second end both being open, four tube sheets affixing the membrane mats to the center tube, a shell sealed to the tube sheets, and two end caps. The first end of the first mat extends a first distance beyond the second end of the second mat. The first end of the first mat is open at the first tube sheet while the first end of the second mat is open at the second tube sheet. The second end of the first mat is between the second and fourth tube sheets and the second end of the second mat is between the first and third tube sheets.
摘要:
A hollow fiber cartridge includes a stack of hollow fiber mats. The stack has a major axis and two end faces. Each mat is substantially perpendicular to the axis. An end cap is united to each end face.
摘要:
A swing check valve for controlling fluid flow, including a valve housing having a port for fluid flow therethrough with a removable cover for accessing an interior of the valve housing. A valve assembly is positioned within the interior of the valve housing for controlling the fluid flow through the valve housing. The valve assembly includes a valve seat in fluid communication with the port and a clapper mounted in the valve housing on a pivotally-mounted rocker arm and moveable between an open position responsive to fluid flow in a flow direction and a closed position sealed against the valve seat responsive to fluid flow in an opposite, backflow direction. A spring is captured in the valve housing by the removable cover without attachment to either the cover or valve housing, and normally urges the clapper into the closed position sealed against the valve seat. A first pivot is carried by the spring and cooperates with a mating interior surface of the cover for permitting unattached pivotal movement of the spring relative to the cover. A second pivot is carried by the spring and cooperates with a mating pivot surface carried on the rocker arm for permitting unattached pivotal movement of the spring relative to the rocker arm whereby the spring is allowed to pivot within the valve housing responsive to movement of the clapper. Also disclosed is an alignment spring mechanism for preventing “heel drag” as the clapper is closing.
摘要:
A contained liquid membrane contactor includes a perforated center tube, first and second membrane mats each with a first and a second end both being open, four tube sheets affixing the membrane mats to the center tube, a shell sealed to the tube sheets, and two end caps. The first end of the first mat extends a first distance beyond the second end of the second mat. The first end of the first mat is open at the first tube sheet while the first end of the second mat is open at the second tube sheet. The second end of the first mat is between the second and fourth tube sheets and the second end of the second mat is between the first and third tube sheets. The shell has a first port between the first and third tube sheets communicating with the second end of the second mat and a second port between the second and fourth tube sheets communicating with the second end of the first mat. The first end cap has a third port communicating with the center tube and a fourth port communicating with the first end of the first mat. The second end cap has a fifth port communicating with the center tube and a sixth port communicating with the first end of the second mat.
摘要:
A transmitter (1) is connected to a source of DC voltage via supply wires (55) and to a sensor (53) having definable characteristics for electrical measurement of a physical variable, the transmitter having a housing (3) having terminals (18) for connection to the supply wires and containing transmitter circuitry (14, 27, 29) operable to modulate current in the supply wires to thereby transmit a signal representative of the sensed value of the physical variable; the transmitter circuitry including a microprocessor (27) and a memory for containing data defining a transfer characteristic to be operated by the microprocessor so that the signal is representative of the sensed value or of a predetermined function of the sensed value for said characteristics of the sensor; the transmitter further including an inductive loop for receiving signals relating to said data defining the transfer characteristic from an electronic programming device (20) and circuitry to load said data into the memory in response to the signals received. The transmitter is insensitive to interference from electromagnetic radiation and spurious voltages induced on the supply wires.
摘要:
Porous membrane contactors and/or their methods of manufacture and/or use are provided. In at least selected embodiments, the present invention is directed to flat panel hollow fiber or flat sheet membrane contactors and/or their methods of manufacture and/or use. In at least certain particular embodiments, the present invention is directed to hollow fiber array flat panel contactors, contactor systems, and/or their methods of manufacture and/or use. In at least particular possibly preferred embodiments, the contactor is adapted for placement in an air duct (such as an HVAC ductwork) and has a rectangular frame or housing enclosing at least one wound hollow fiber array or membrane bundle.
摘要:
A membrane contactor includes a housing, a stack of membrane mats, and a cap. The housing has a closed end and an open end. The closed end includes an outlet port. The cap is united to the open end and includes an inlet port. A stack of membrane mats is within the housing stacked substantially perpendicular to the longitudinal axis of the housing. Each membrane mat has a plurality of hollow fiber members. A potting material bonds the membrane mats to each other and simultaneously bonds one end of the stack to the closed end and bonds the other end of the stack to the cap. The potting material forms an internal chamber and at least one external chamber within the housing. The hollow fiber members extend through the potting material from the internal chamber into the external chambers. The inlet port and the outlet port are in communication with the internal chamber. At least one side port is in communication with the external chambers.
摘要:
A membrane contactor includes a housing, a stack of membrane mats, and a cap. The housing has a closed end and an open end. The closed end includes an outlet port. The cap is united to the open end and includes an inlet port. A stack of membrane mats is within the housing stacked substantially perpendicular to the longitudinal axis of the housing. Each membrane mat has a plurality of hollow fiber members. A potting material bonds the membrane mats to each other and simultaneously bonds one end of the stack to the closed end and bonds the other end of the stack to the cap. The potting material forms an internal chamber and at least one external chamber within the housing. The hollow fiber members extend through the potting material from the internal chamber into the external chambers. The inlet port and the outlet port are in communication with the internal chamber. At least one side port is in communication with the external chambers.