Self-cleaning gas filtering apparatus
OwnerCharles G. Tullis, Bobby A. Hammerinventors
Life of this patent
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Abstract
An improvement to self-cleaning gas filters, gas filter-separators or gas filter-coalescer devices is disclosed. The improvement reduces the waste of gas during a self-cleaning cycle, by utilizing a single cage window rather then the usual plurality of cage windows, by a series of mechanical refinements to the internal seals, by improving the manufacturing steps, and by considering gas waste if the internal elements are damaged, during the cleaning cycle, through control of the reverse cleaning gas flow based on differential pressure across the elements that are being cleaned. Some of the improvements are field retrofitable to existing devices whereas other improvements can only be made to the present art during the manufacturing phase.
Claims17
An improvement to reduce the waste of gas within a Self-cleaning Gas Filtering Apparatus having
- an internal rotatable manifold having two ends,
- manifold pads each having a top and a bottom and each being attached at the top thereof to the rotatable manifold,
- a manifold cage containing a plurality of manifold cage windows being positioned within the rotatable manifold between the ends thereof,
- a central pivot having a cage bearing surface about which the manifold cage and its associated manifold are free to rotate,
- a support plate having the central pivot positioned at the center of the support plate, element entry-ports circumferentially arranged within the support plate, and wherein the improvement comprises;
- forming a single window in the cage bearing surface, and
- manifold cage block seals each being positioned between the manifold cage and internal walls of the rotatable manifold.
An improvement to reduce the waste of gas within a Self-cleaning Gas Filtering Apparatus having
- an internal rotatable manifold having two ends,
- manifold pads each having a top and a bottom and each being attached at the top thereof to the rotatable manifold,
- a manifold cage containing a plurality of manifold cage windows being positioned
- within the rotatable manifold between the ends thereof,
- a central pivot having a cage bearing surface about which the manifold cage and its associated manifold are free to rotate,
- a support plate, having the central pivot positioned at the center of the support plate,
- element entry-ports circumferentially arranged within the support plate,
- each entry-port in communication with an element,
- the manifold capable of receiving reverse flow of gas through selected element entry-ports thereby cleaning the selected elements, and
- wherein the improvement comprises;
- forming a single window in the cage bearing surface, and
- manifold cage block seals each being positioned between the manifold cage and
- internal walls of the rotatable manifold.
An improvement to reduce the waste of gas within a Self-cleaning Gas Filtering Apparatus containing an internal de-mister unit having
- an internal rotatable manifold having two ends,
- manifold pads each having a top and a bottom and each being attached at the top thereof to the rotatable manifold,
- a manifold cage containing a plurality of manifold cage windows being positioned within the rotatable manifold between the ends thereof,
- a central pivot having a cage bearing surface about which the manifold cage and its associated manifold are free to rotate,
- a support plate, having the central pivot positioned at the center of the support plate,
- element entry-ports circumferentially arranged within the support plate except where interference with the de-mister unit occurs,
- each entry-port in communication with an element,
- the manifold capable of receiving reverse flow of gas through selected element entry-ports thereby cleaning the selected elements in a pressure unbalanced condition caused by one end of the rotatable manifold not passing over entry-ports, and
- wherein the improvement comprises;
- forming a single window in the cage bearing surface, and manifold cage block seals each being positioned between the manifold cage and internal walls of the rotatable manifold such that, with the rotatable manifold in place on the central pivot, said manifold cage block seals isolate one end of the rotatable manifold from the other end.
Dependencies are inferred from the claim text.