Multi-stage cyclone separator

• US 4,289,611 A
• Filed: 05/05/1980
• Issued: 09/15/1981
• Est. Priority Date: 05/10/1979
• Status: Expired due to Term

• Current Assignee: Klockner-Humboldt-Deutz Akt.
• Original Assignee: Klockner-Humboldt-Deutz Akt.
• Inventors: Brockmann, Heinz
• Primary Examiner(s): Nozick, Bernard
• Application Number:
  US06/146,274
• Time in Patent Office: 498 Days
• Field of Search: 55/456, 55/457, 55/347, 55/348, 55/343, 55/344-346, 209/144
• US Class Current: 209/710
• CPC Class Codes: B04C 2003/006 Construction of elements by which the vortex flow is generated or degenerated
• CPC Class Codes: B04C 3/04 Multiple arrangement thereof combined with types according to other groups, B04C7/00
• CPC Class Codes: B04C 3/06 Construction of inlets or outlets to the vortex chamber
• CPC Class Codes: F02C 7/052 with dust-separation devices
• CPC Class Codes: F02M 35/022 acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls

Abstract

A vortex separator, operating as a dust filter system for air intake machines, such as gas turbines and other internal combustion engines, includes dust filters having first and second casings arranged coaxially with helical bladed inserts mounted within the upstream ends of the casings, and an air outlet connector extending coaxially of the downstream end of the second casing. The downstream end of the first casing surrounds and forms an annular space with the upstream end of the following casing, and the downstream end of such following casing surrounds and forms an annular space with the upstream end of the air outlet connector.

Claims

1. A vortex separator, operating as a dust filter system for air intake machines, such as gas turbines and other internal combustion engines, comprising dust filters including first and second casings arranged coaxially and having upstream and downstream ends, said upsteam end of said first casing having a predetermined diameter and said upstream end of said second casing having a diameter less than said predetermined diameter, first and second helical bladed inserts respectively mounted within and having corresponding diameters to said upstream ends of said casings, said inserts having blades oriented for effecting air rotation in the same direction, said blades of said second insert having a pitch greater than the blade pitch of said first insert for increasing the swirl of the air entering said second casing, an air outlet connector having upstream and downstream ends and extending coaxially of said downstream end of said second filter, said upstream end of said connector having a diameter less than said upstream end of said second casing, said downstream end of said first casing surrounding and having a larger diameter than said upstream end of said second casing to thereby form a first annular space therewith, said downstream end of said second casing surrounding and having a larger diameter than said upstream end of said air outlet connector to thereby form a second annular space therewith, whereby air containing dust particles of various grain sizes enters said upstream end of said first filter and is subjected to a centrifugal force by said first insert, the dust particles having larger grain sizes first impacting against the inner wall of said first casing and thereby exiting through said first annular space, the dust particles having relatively smaller grain sizes entering said upstream end of said second filter and being subjected to a further centrifugal force by said second insert, the dust particles having grain sizes smaller than said larger sizes first impacting against the inner wall of said second casing and thereby exiting through said second annular space, the dust particles having grain sizes still smaller than said smaller sizes being discharged through said outlet connector.

2. The cyclone separator according to claim 1, wherein radially disposed support elements are provided in said annular spaces for interconnecting said filters together and said second casing and said air connector together.

3. The cyclone separator according to claim 2, wherein at least a pair of spaced walls respectively engage said upstream end of said first casing and said downstream end of said air outlet connector for forming at least one dust collection chamber for the exiting dust particles.

4. The cyclone separator according to claim 3, wherein another wall spaced between said pair of walls engages said second casing between said ends thereof for forming a pair of dust collection chambers for the exiting dust particles.