Advanced large scale field-erected air cooled industrial steam condenser
Large scale field erected air cooled industrial steam condenser. A bottom bonnet runs along the bottom length of the heat exchanger bundle for delivering steam to the bottom end of the condenser tubes and for receiving condensate formed in those same tubes. The tops of the tubes are connected to a top bonnet. Uncondensed steam and non-condensables flow into the top bonnet from the condenser tubes. Each cell of the ACC is fed by steam distribution manifold suspended from and directly below the bundle support framework.
1. A large scale field erected air cooled industrial steam condenser connected to an industrial steam producing facility, comprising:
a single or plurality of condenser section streets, each condenser section street comprising a row of condenser section cells, each cell comprising a single fan drawing air through a plurality of heat exchanger bundles, and each heat exchanger bundle having a longitudinal axis and a transverse axis perpendicular to its longitudinal axis,
each heat exchanger bundle comprising a plurality of condenser tubes and a top bonnet connected to and in fluid communication with a top end of each said plurality of condenser tubes, a bottom bonnet connected to and in fluid communication with a bottom end of each said plurality of condenser tubes, each said bottom bonnet having a single steam inlet centrally located on a bottom surface of said bottom bonnet;
each condenser section cell comprising a steam distribution manifold suspended directly adjacent a bottom side of said heat exchanger bundles arranged along an axis that is perpendicular to a longitudinal axis of said heat exchanger bundles at a midpoint of said heat exchanger bundles, said steam distribution manifold having at its top surface a plurality of connections adapted to connect to each said bottom bonnet inlet.
2. The large scale field erected air cooled industrial steam condenser according to claim 1 , wherein each heat exchanger bundle comprises only a single stage in which all tubes in the heat exchanger bundle receive steam from a bottom end of said tubes.
3. The large scale field erected air cooled industrial steam condenser according to claim 1 , wherein said top bonnet is configured to receive non-condensable gasses from said condenser tubes.
4. The large scale field erected air cooled industrial steam condenser according to claim 1 , wherein each said heat exchanger bundle is suspended from the condenser section frame by a plurality of flexible hanging supports.
5. The large scale field erected air cooled industrial steam condenser according to claim 4 , wherein said flexible hanging supports each comprise a central rod connected at each end to a connection sleeve, and wherein one connection sleeve of each flexible hanging support is connected to said condenser section frame and a second connection sleeve of each flexible hanging support is connected to a tube sheet of said heat exchanger bundle.
6. The large scale field erected air cooled industrial steam condenser according to claim 1 , wherein said plurality of condenser tubes have a length of 2.0 m to 2.8 m, a cross-sectional height of 120 mm and a cross-sectional width of 4-10 mm.
7. The large scale field erected air cooled industrial steam condenser according to claim 6 , wherein said condenser tubes have a cross-sectional width of 5.2-7 mm.
8. The large scale field erected air cooled industrial steam condenser according to claim 7 , wherein said condenser tubes have a cross-sectional width of 6.0 mm.
9. The large scale field erected air cooled industrial steam condenser according to claim 1 , wherein said plurality of condenser tubes have fins attached to flat sides of said tubes, said fins having a height of 9 to 10 mm, and spaced at 5 to 12 fins per inch.
10. The large scale field erected air cooled industrial steam condenser according to claim 1 , wherein said plurality of condenser tubes have fins attached to flat sides of said tubes, said fins having a height of 18 mm to 20 mm spanning a space between adjacent tubes and contacting adjacent tubes, said fins spaced at 5 to 12 fins per inch.
11. The method of assembling a large scale field erected air cooled condenser according to claim 1 , comprising
assembling a condenser section at ground level, including a condenser section frame and said heat exchanger bundles;
supporting said condenser section from said condenser section frame at a height from ground sufficient only to suspend a steam distribution manifold directly beneath and adjacent said heat exchanger bundles,
assembling a plenum section with fan deck and fan assembly at ground level;
raising said assembled condenser section and upper steam distribution manifold and placing it atop a corresponding understructure;
raising said assembled plenum section and placing it atop said condenser section.