Turbo generator set device providing steam in different qualities

Abstract

The invention discloses a turbo generator set device providing steam in different qualities. The turbo generator set device is characterized by comprising first and second steam turbines, first and second gear cases and a generator, the generator is a double-end driving type turbo generator, the first steam turbine is connected with the input end of the first gear case, the output end of the firstgear case is connected with one end of the generator, the second steam turbine is connected with the input end of the second gear case, and the output end of the second gear case is connected with the other end of the generator. Thus, a traditional turbo generator set device in which two sets of back pressure extraction turbine drive one generator to provide steam in four qualities is replaced, instead, two back pressure extraction turbines drive one generator to provide the steam in four qualities, the structure is simple and compact, a workshop occupies small space, and equipment and workshop building cost is reduced.

Description

technical field [0001] The invention relates to a steam turbine generator set device, in particular to a steam turbine generator set device providing multi-quality steam. Background technique [0002] At present, some large-scale chemical companies have requirements for the use of steam of different qualities in the production process. For example, a company has four different pressure steam requirements of 4.0MPa, 2.5 MPa, 1.3 MPa and 0.35 MPa in the refining process of petrochemical products. , while at present, a set of turbogenerator units at home and abroad can only provide two kinds of steam with different pressure levels at the same time. Two schemes are usually used to meet the above requirements: 1. Two sets of turbogenerators are used to obtain steam of four qualities, the system is complicated and the investment cost is high, see image 3 Two, adopt a set of steam turbine generator set device, obtain two kinds of quality steams, other two kinds of quality steams o...

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Problems solved by technology

Two schemes are usually used to meet the above requirements: 1. Two sets of turbogenerators are used to obtain steam of four qualities, the system is complicated and the investment cost is high, see image 3 Two, adopt a set of steam turbine generator set device, obtain two kinds of quality steams, other two kinds of quality steams obtain after decompressing through first two kinds of high-quality steams, cause serious waste of energy, see Figure 4

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