Geared turbo machine

Patent metadata

Field	Value
Publication number	US-10738786-B2
Application number	US-201716315881-A
Country	US
Kind code	B2
Filing date	Mar 17, 2017
Priority date	Jul 7, 2016
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

A geared turbo machine having a transmission, a drive assembly and multiple output assemblies. The transmission has a central bull gear and multiple pinions engaging into the bull gear. A first output assembly a two-stage main compressor in which a process gas is compressed using the mechanical drive power provided by the drive assembly a respective intermediate cooler is connected between two respective stages of the main compressor to cool the second process gas. A respective intermediate cooler is arranged between the last stage of the main compressor and a first output assembly and between two respective output assembly and an end cooler arranged downstream of the last. Each intermediate cooler and the end cooler has a respective housing with a supply connector and a discharge connector and a heat exchanger At least one intermediate cooler and/or the end cooler has a heat exchanger with a plate-type construction.

First claim

The invention claimed is:

1. A geared turbo machine, comprising:
a transmission, comprising:
a central bull gear;
a bull gear shaft for the central bull gear; and
multiple pinions meshing with the central bull gear each having a respective pinion shaft;
a drive assembly configured as a steam turbine, in which a first process gas is expanded to provide mechanical drive power via a one of the multiple pinions meshing with the central bull gear; and
a plurality of output assemblies comprising:
a first output assembly configured as at least a two-stage main compressor that uses the mechanical drive power provided by the drive assembly to compress a second process gas;
an intercooler connected between each two stages of the first output assembly;
multiple second output assemblies configured as geared compressors that use the mechanical drive power provided by the drive assembly to further compress the second process gas; and
a respective intercooler arranged between a last stage of the first output assembly and a first geared compressor and between two geared compressors; and
an end cooler arranged downstream of a last geared compressor;
a respective housing for each intercooler and the end cooler, each housing having a substantially cylindrical or substantially tubular casing wall, end walls at longitudinal ends of the cylindrical or tubular casing wall, an inlet connector for the second process gas, and an outlet connector for the second process gas the inlet connector and outlet connector are disposed in the cylindrical or tubular casing wall; and
a heat exchanger received in the respective housing,
wherein at least one intercooler and/or the end cooler comprises a plate-type heat exchanger having an input and an output configured for a flow path that is perpendicular to a longitudinal axis of the cylindrical or tubular casing wall,
wherein the cylindrical or tubular casing wall of each housing is spaced apart from the input and the output of the plate-type heat exchanger, and the input and output are disposed on opposite end walls,
wherein the input and the output of the plate-type heat exchanger are perpendicular to the inlet connector for the second process gas and the outlet connector for the second process gas,
wherein the transmission, the drive assembly, and the plurality of output assemblies are integrated to form a machine train; wherein a bottom plate of the plate-type heat exchanger forms a portion of the substantially cylindrical or substantially tubular casing wall.

2. The geared turbo machine according to claim 1 , wherein each intercooler and the end cooler comprises a plate-type heat exchanger.

3. The geared turbo machine according to claim 1 , wherein at least one intercooler between an axial stage of the first output assembly and a radial stage of the first output assembly comprises a plate-type heat exchanger.

4. The geared turbo machine according to claim 1 , wherein at least one further intercooler and/or the end cooler comprises a fin tube bundle heat exchanger.

5. The geared turbo machine according to claim 4 , wherein at least one further intermediate cooler and/or the end cooler comprises a plate-type heat exchanger.

6. The geared turbo machine according to claim 1 , wherein plate elements of the plate-type heat exchanger are welded.

7. The geared turbo machine according to claim 1 ,
wherein the inlet connector and the outlet connector are positioned on the casing wall one behind the other in an axial direction of the casing wall.

8. The geared turbo machine according to claim 1 ,
wherein the inlet connector and the outlet connector are positioned next to one another on the casing wall in an axial position of the casing wall.

9. The geared turbo machine according to claim 1 , wherein the housing of the respective cooler receives a flow equalising element positioned downstream of the inlet connector and upstream of the heat exchanger.

10. The geared turbo machine according to claim 9 , wherein the flow equalising element is a plate-like perforated sheet.

11. The geared turbo machine according to claim 1 , wherein the drive assembly is coupled to a same pinion shaft as the first output assembly.

12. The geared turbo machine according to claim 3 , wherein the drive assembly is coupled to the same pinion shaft as the first output assembly via one or more clutches.

13. The geared turbo machine according to claim 2 , wherein the drive assembly and the first output assembly rotate with a same rotational speed.

Assignees

• Man Energy Solutions Se

Inventors

• Buljina Irhad
• Faulhaber Stephan

Classifications

• F04D29/5826

  Cooling at least part of the working fluid in a heat exchanger · CPC title

• F04D25/04 Primary

  the pump being fluid-driven {(pumps driven by exhaust gases F02B37/00, F02B39/00; turbochargers F02C6/12)} · CPC title

• F02C7/36

  Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user ({F02C3/107 - F02C3/13 and} F02C7/32 take precedence; couplings for transmitting rotation F16D; gearing in general F16H) · CPC title

• F04D29/586

  specially adapted for liquid pumps · CPC title

• F04D25/163

  driven by a common gearing arrangement · CPC title