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US 8,276,528 B1Granted
Pneumatic fuel distributor for solid fuel boilers
OwnerDaniel Richard Higgins, Eugene Sullivaninventors
Life of this patent
Estimating the term…
Abstract
A pneumatic fuel distributor for solid fuel boilers is described incorporating in various embodiments one or more of the following features: a converging nozzle section, a converging adjustable orifice section and an integral trajectory plate. The nozzle, orifice and trajectory plate are preferably all interconnected and rotate together about a common axis. The orifice damper is, in one embodiment, a rotating convergent section and independently adjustable. The unit preferably incorporates a viewing glass and access port and the rotating components are preferably removable for maintenance. The unit is preferably reversible for left or right hand installation and the trajectory plate is easily replaceable.
Claims16
A solid fuel distributor, comprising:
- a trajectory plate onto which fuel is directed;
- a converging nozzle for directing a pneumatic media through an orifice for injecting fuel from the trajectory plate into a boiler;
- a frame supporting the trajectory plate and the nozzle, the nozzle and the trajectory plate being fixed relative to each other so as to maintain a constant angle between the nozzle and the trajectory plate, and the nozzle and the trajectory plate being pivotable with respect to the frame so that the angle at which fuel is introduced into the boiler can be adjusted when the frame is mounted onto a boiler without changing the angle between the nozzle and the trajectory plate;
- and
- a first mechanism for adjusting the position of the orifice opening and a second mechanism for adjusting the orientation of the nozzle and trajectory plate relative to the frame, the first and second mechanism being mountable on either side of the mounting frame.
2 more elements
A pneumatic distributor for distributing solid fuel into a boiler, comprising:
- a trajectory plate for receiving fuel from a fuel chute;
- a nozzle for providing a pneumatic media to distribute fuel from the trajectory plate into a boiler, the nozzle having a cross section that tapers in the direction of the boiler;
- an orifice positioned at the tapered end of the nozzle, the orifice having an adjustable opening to control the pneumatic media flowing through the nozzle, the orifice being formed at the end of the nozzle by non-parallel surfaces that form between them a region which tapers in the direction of the orifice, the size of the orifice being adjustable by changing the relative position or orientation of the surfaces, the surfaces configured to guide the pneumatic media toward the orifice;
- and
- the nozzle includes a damper that resides inside a hollow cylindrical chamber, the damper including a semi-cylindrical upper portion and a flat lower portion that provides one of the non-parallel surfaces that tapers in the direction of the orifice.
2 more elements
A solid fuel boiler, comprising:
- boiler walls including tubes for transporting a liquid, the boiler walls defining a boiler interior;
- a chute for supplying solid fuel to the boiler interior;
- and
- a pneumatic distributor for distributing solid fuel from the chute into the boiler interior, comprising:
- a trajectory plate onto which fuel is directed;
- a converging nozzle for directing a pneumatic media through an orifice for injecting fuel from the trajectory plate into a boiler;
- a frame supporting the trajectory plate and the nozzle, the nozzle and the trajectory plate being fixed relative to each other so as to maintain a constant angle between the nozzle and the trajectory plate, and the nozzle and the trajectory plate being pivotable with respect to the frame so that the angle at which fuel is introduced into the boiler can be adjusted when the frame is mounted onto a boiler without changing the angle between the nozzle and the trajectory plate;
- and
- a first mechanism for adjusting the position of the orifice opening and a second mechanism for adjusting the orientation of the nozzle and trajectory plate relative to the frame, the first and second mechanism being mountable on either side of the mounting frame.
6 more elements
A solid fuel boiler, comprising:
- boiler walls including tubes for transporting a liquid, the boiler walls defining a boiler interior;
- a chute for supplying solid fuel to the boiler interior;
- and
- a pneumatic distributor for distributing solid fuel from the chute into the boiler interior, comprising:
- a trajectory plate for receiving fuel from a fuel chute;
- a nozzle for providing a pneumatic media to distribute fuel from the trajectory plate into a boiler, the nozzle having a cross section that tapers in the direction of the boiler;
- an orifice positioned at the tapered end of the nozzle, the orifice having an adjustable opening to control the pneumatic media flowing through the nozzle, the orifice being formed at the end of the nozzle by non-parallel surfaces that form between them a region which tapers in the direction of the orifice, the size of the orifice being adjustable by changing the relative position or orientation of the surfaces, the surfaces configured to guide the pneumatic media toward the orifice;
- and
- the nozzle includes a damper that resides inside a hollow cylindrical chamber, the damper including a semi-cylindrical upper portion and a flat lower portion that provides one of the non-parallel surfaces that tapers in the direction of the orifice.
6 more elements
Dependencies are inferred from the claim text.