SEPARATOR

摘要

A separator has a first inlet arranged to receive a fluid stream, and first and second separation stages coupled together in series; A pump coupled to the second separation stage generates an area of reduced pressure to draw the fluid stream through the first and second separation stages. One of the stages includes a variable impactor separator comprising a first chamber arranged to receive the fluid stream, and a second chamber coupled to the first chamber through an aperture to accelerate the first fluid stream. The stream is incident upon an impaction surface to separate contaminants from the fluid stream. An actuator adjusts the open area of the aperture according to a pressure differential between fluid pressure in the first chamber and a reference fluid pressure in a third chamber. The other of the separation stages is a second variable impactor separator or a filter media.

主权项

1. A separator for separating contaminants from a fluid stream, the separator comprising:
a. a first inlet to receive a first fluid stream including entrained contaminants; b. first and second separation stages fluidly coupled together in series and fluidly coupled to the first inlet to receive the first fluid stream from the first inlet and each arranged to separate contaminants from the first fluid stream; and c. a pump fluidly coupled to the second separation stage to generate an area of reduced pressure to draw the first fluid stream through the first and second separation stages; d. wherein one of the separation stages comprises a variable impactor separator comprising:
i. a first chamber to receive the first fluid stream;ii. a second chamber fluidly coupled to the first chamber through at least one aperture such that the first fluid stream is accelerated through the aperture and is incident upon an impaction surface in the second chamber in the path of the first fluid stream such that contaminants are separated from the first fluid stream; and e. an actuator to adjust the open area of the at least one aperture according to a pressure differential between fluid pressure in the first chamber and a reference fluid pressure in a third chamber; and f. wherein the other of the separation stages comprises one of a second variable impactor separator and a filter media.