Steam generator
AssigneeRational AG
InventorsJaroslav Klouda, Maarten Joannes Botman
Life of this patent
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Abstract
A steam generator has a steam boiler, a burner shaft for receiving hot exhaust gasses from a burner extending into the steam boiler, at least one heat exchanger section with one or more channels extending through the boiler for conducting exhaust gasses from the burner shaft through the heat exchanger to an exhaust system. The connection between the burner shaft and the channels of the heat exchanger is by an opening in the sidewall of the burner shaft, which is partially closed by a slidable insert that allows adjusting the size of the opening. The insert can be hollow and can have an opening spaced from the opening in the sidewall to allow bypassing some exhaust gasses to a point in the channels downstream from the opening in the sidewall.
Claims17
A steam generator comprising:
- a steam boiler,
- a burner shaft extending into the boiler for receiving hot exhaust gasses from a burner, and
- at least one heat exchanger section with at least one channel extending through the boiler for conducting exhaust gasses of the burner through the steam boiler so that heat in the exhaust gasses is transferred through walls of each channel to the liquid in the boiler, each channel at one end being connected to an exhaust and at the other end being connected to the burner shaft by a connecting section, each channel being arranged so that a flow direction of the gasses flowing in the channel is different from a flow direction in the burner shaft, the connecting section comprising a passage that is formed by an opening in a wall of the burner shaft and an insert, whereby the opening connects the burner shaft to each channel of the heat exchanger section and is partly closed by the insert.
A steam generator comprises:
- a steam boiler,
- a burner shaft extending into the seam boiler for receiving hot exhaust gasses from a burner, and
- at least one heat exchanger section having a plurality of channels extending through the steam boiler for conducting exhaust gasses from the burner shaft through to an exhaust to cause heating of liquid contacting walls of the channels, said channels being connected to the burner shaft by a distributor channel connected to a passage formed in an opening in a wall of the burner shaft and limited by an insert which partially closes said opening, said channels of the heat exchanger sections extending parallel to the burner shaft so that a flow in the channels is in a direction opposite a direction of a flow in the burner shaft.
Dependencies are inferred from the claim text.