Gas heated steam generator
AssigneeSulzer Brothers Limited
InventorMax Weber
Life of this patent
Estimating the term…
Abstract
The steam generator is made of two assembly parts which can be transported separately and installed in place one above the other. The lower part contains a reheater made up of a group of U-shaped tubes. The two leg portions of this tube group are disposed within a casing which has two oppositely disposed inlet openings for the heated gas flow. Various partitions and covers are also provided to direct, the heated air in two counterflows over the leg portions and, thence, out of the lower generator part over the superheater and evaporator in the upper part of the generator.
Claims14
A gas heated steam generator comprising
- means defining a cylindrical chamber having a bottom and an inlet for a flow of heated gas;
- an evaporator disposed in said chamber for evaporating a flow of feed water;
- means for feeding water to said evaporator;
- a superheater connected to said evaporator within said chamber for heating the flow of evaporated feed water to steam, said superheater being mounted in communication with said bottom to deliver steam from said chamber;
- a reheater within said chamber, said reheater including a group of U-shaped tubes having a pair of vertically disposed spaced apart leg portions, said leg portions being mounted in said bottom to receive and conduct steam from outside said chamber from one leg portion to the other leg portion;
- a casing surrounding said group of U-shaped tubes, said casing having a pair of oppositely disposed openings communicating with said inlet;
- and
- means directing the heated gas flows from said opening in two counterflows over each of said leg portions of said group of U-shaped tubes and subsequently over said superheater and said evaporator.
A gas heated steam generator comprising
- a first part containing a group of U-shaped tubes defining reheater, a casing surrounding said group of U-shaped tubes and having a pair of oppositely disposed openings to receive heated gas, and a first tubular connector on said casing defining an outlet opening for the heated gas within said casing;
- and
- a second part removably mounted on said first part, said second part including an evaporator, a superheater, and a second tubular connector mounted coaxially with said first connector to permit the heated gas to flow over said superheater and said evaporator.
Dependencies are inferred from the claim text.