| US 7,600,981 B2 | ||
| Method for optimizing the operation of a plurality of compressor assemblies of a natural-gas compression station | ||
| Dieter Lau, Leipziger Str. 13, 45472 Muelheim (Germany) | ||
| Filed on Apr. 16, 2004, as Appl. No. 10/825,329. | ||
| Application 10/825329 is a continuation of application No. PCT/DE02/03855, filed on Oct. 11, 2002. | ||
| Claims priority of application No. 101 51 032 (DE), filed on Oct. 16, 2001. | ||
| Prior Publication US 2004/0265133 A1, Dec. 30, 2004 | ||
| Int. Cl. F04B 41/06 (2006.01); F04B 23/04 (2006.01) | ||
| U.S. Cl. 417—5 [417/2; 417/3; 417/4; 417/53; 417/426] | 6 Claims |
| 1. A method for optimizing the operation of a plurality of compressor assemblies of a natural-gas compression station, comprising:
after start of at least a second compressor assembly, running the rotational speeds of the running compressor assemblies in
a fixed rotational speed ratio with respect to characteristic-map data for each compressor assembly,
thereafter varying the rotational speed ratio by means of an equal-percentage adjustment of an operational volume of each
of the running compressor assemblies and thereby adjusting the throughflow quantity of the natural-gas compression station
via the rotational speed, until surge prevention valves of each of the running compressor assemblies of the natural-gas compression
station are closed,
thereafter leading the operating points of the compressor assemblies in their characteristic maps toward the maximum efficiency
line by varying the rotational speeds of the running compressor assemblies,
thereafter, in a continuous operating mode of the natural-gas compression station, determining rotational-speed desired values
by means of a reciprocal mutually coordinated variation of the rotational-speed values of the compressor assemblies, in which
the compressor station has a minimal fuel consumption of the natural-gas compression station and a minimal emission of an
exhaust-gas quantity, and,
on the basis of the rotational-speed desired values determined, adjusting and storing the fixed rotational speed ratio.
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