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US 10,518,217 B2Granted
Catalytic reactor and ship provided with same
AssigneeYanmar Co., Ltd.
InventorsTetsuya Yokoyama, Arata Hayata, Ryota Kobayashi
Life of this patent
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Abstract
A catalytic reactor including: catalytic cassettes each including a catalyst part configured to reduce NOx in exhaust gas and an outer peripheral part made of a frame covering side surfaces of the catalyst part; and a lattice frame on which the catalytic cassettes are placed. The lattice frame includes a plurality of inflow holes through which exhaust gas flows into the catalyst parts and a plurality of frame parts which defines the respective plurality of inflow holes. The outer peripheral part of each of the catalytic cassettes is positioned so that the outer peripheral part is accommodated in a respective one of the frame parts.
Claims10
A system comprising:
- a catalytic reactor comprising:
- a plurality of catalytic cassettes each including:
- a catalyst part configured to reduce nitrogen oxide in exhaust gas;
- and
- an outer peripheral part made of a frame covering side surfaces of the catalyst part;
- and
- at least one lattice frame on which the plurality of catalytic cassettes is placed, wherein the at least one lattice frame includes:
- a plurality of inflow holes through which exhaust gas flows into the catalyst parts;
- and
- a plurality of frame parts defining the respective plurality of inflow holes,
- wherein:
- the outer peripheral part of each of the catalytic cassettes is positioned so that the outer peripheral part is accommodated in a respective one of the frame parts,
- the catalytic reactor has, in a side surface of the catalytic reactor, an opening through which the plurality of catalytic cassettes is charged into the catalytic reactor,
- the at least one lattice frame is configured to be divisible into an opening-side frame and an opposed-side frame opposed to the opening,
- the opening-side frame is detachably attached to the opposed-side frame,
- the at least one lattice frame comprises a plurality of lattice frames that are provided, inside the catalytic reactor, on an upstream side and a downstream side in an exhaust-gas flow direction, and
- catalytic cassettes disposed on the lattice frame on the upstream side are made shorter in the exhaust-gas flow direction than catalytic cassettes disposed on the lattice frame on the downstream side.
14 more elements
A catalytic reactor comprising:
- a housing defining one or more openings, each opening configured to receive a plurality of catalytic cassettes, each catalytic cassette comprising:
- a catalyst configured to reduce nitrogen oxide in exhaust gas;
- and
- an outer peripheral frame covering a perimeter of the catalyst;
- and
- a plurality of lattice frames configured to support the plurality of catalytic cassettes within the housing, each of the lattice frames comprising:
- an opening-side frame;
- and
- an opposed-side frame that is detachably attached to the opening-side frame, where the lattice frame defines a plurality of inflow holes through which exhaust gas flows;
- and
- wherein:
- each of the catalytic cassettes is configured to be positioned over an inflow hole such that exhaust gas flows in an exhaust-gas flow direction through the inflow hole into the catalytic cassette;
- the plurality of lattice frames comprise a first frame configured to be positioned within a first opening of the one or more openings, and a second frame configured to be positioned within a second opening of the one or more openings;
- and
- the catalytic cassettes disposed on the first frame have a height, in the exhaust-gas flow direction, that is less than catalytic cassettes disposed on the second frame.
12 more elements
A catalytic reactor comprising:
- a housing defining one or more openings, each opening configured to receive a plurality of catalytic cassettes that reduce nitrogen oxide in exhaust gas;
- and
- one or more lattice support frames configured to support the plurality of catalytic cassettes within the housing, each of the one or more lattice support frames comprising:
- a lattice frame defining a plurality of inflow holes through which exhaust gas flows, the lattice frame comprising:
- an opening-side frame;
- and
- an opposed-side frame that is detachably attached to the opening-side frame;
- and
- wherein each of the catalytic cassettes is configured to be positioned over an inflow hole such that exhaust gas flows through the inflow hole into the catalytic cassette.
6 more elements
Dependencies are inferred from the claim text.