Modular gas turbine system

{
  "publication_number": "US10794287B2",
  "country": "US",
  "kind": "B2",
  "title": "Modular gas turbine system",
  "abstract": "A modular gas turbine system is disclosed. The system includes a base plate and a gas turbine engine mounted on the base plate. The gas turbine engine has a rotation axis, a first air compressor section and a second air compressor section. A rotating load is mechanically coupled to the gas turbine engine and mounted on the base plate. A supporting frame extends above the base plate and supports a plurality of secondary coolers, which are fluid exchange relationship with an intercooler of the gas turbine engine.",
  "claims": [
    "1. A modular gas turbine system, comprising: a base plate; mounted on the base plate, a gas turbine engine having a rotation axis, a first air compressor section and a second air compressor section; at least one rotating load, mechanically coupled to the gas turbine engine and mounted on the base plate; a supporting frame extending above the base plate; an air intercooler fluidly coupled to the first air compressor section and second air compressor section, the air intercooler configured and arranged to cool partly compressed air from the first air compressor section in heat exchange relationship with a heat removal fluid; wherein a plurality of secondary coolers are arranged on the supporting frame above the base plate at a level above at least one of the gas turbine engine and the load, and are in fluid exchange relationship with the intercooler, the heat removal fluid being in heat exchange relationship with a cooling medium in the secondary coolers.",
    "2. The modular gas turbine system of claim 1, wherein the secondary coolers are air coolers and the heat removal fluid is in heat exchange relationship with cooled ambient air in said secondary coolers.",
    "3. The modular gas turbine system of claim 1, further comprising at least one lube oil cooler arranged on the supporting frame.",
    "4. The modular gas turbine system of claim 3, wherein the at least one lube oil cooler is arranged at the same level as the secondary coolers.",
    "5. The modular gas turbine system of claim 1, further comprising a first bridge crane movably supported on the supporting frame.",
    "6. The modular gas turbine system of claim 1, further comprising a first bridge crane and a second bridge crane, both movable on the supporting frame.",
    "7. The modular gas turbine system of claim 6, wherein the first bridge crane and the second bridge crane are movable on common rails mounted on the supporting frame.",
    "8. The modular gas turbine system of claim 6, wherein at least one of the first bridge crane and second bridge crane is movable on rails extending substantially parallel to a rotation axis of the gas turbine engine.",
    "9. The modular gas turbine system of claim 6, wherein the first bridge crane is movable along first rails extending substantially parallel to the rotation axis of the gas turbine engine and the second bridge crane is movable along second rails extending substantially orthogonal to the rotation axis of the gas turbine engine.",
    "10. The modular gas turbine system of claim 6, wherein at least one of said first bridge crane and second bridge crane is movable on first rails extending substantially parallel to the rotation axis of the gas turbine engine and projecting horizontally beyond the footprint of the base plate up to a lay down area arranged on a side of the base plate.",
    "11. The modular gas turbine system of claim 6, wherein the first bridge crane has a lifting capacity higher than the second bridge crane.",
    "12. The modular gas turbine system of claim 6, further comprising a third bridge crane movably supported on the supporting frame.",
    "13. The modular gas turbine system of claim 12, wherein the first bridge crane and the second bridge crane are movably arranged on first rails supported by the supporting frame, the third bridge crane is movably arranged on second rails supported by the supporting frame, and the second rails are arranged above the first rails.",
    "14. The modular gas turbine system of claim 1, wherein the rotating load comprises at least one gas compressor.",
    "15. The modular gas turbine system of claim 1, wherein the modular gas turbine system is configured to be transportable."
  ],
  "description_excerpt": "The disclosure relates to gas turbine systems. Embodiments disclosed herein specifically concern gas turbine systems for mechanical drive applications. Some exemplary embodiments concern gas turbine systems for on-shore LNG plants, including one or more gas compressors driven by a gas turbine engine.\n\nGas turbines are widely used as prime movers in power generation or industrial plants, for driving rotating loads, such as electric generators or turbomachines.\n\nIn off-shore installations, compressors driven by aero-derivative gas turbines having a power rate lower than 40 MW are often used, due to their compact structure and reduced overall dimensions. Modularization of gas turbines having a power rate lower than 40 MW is a quite common practice. The gas turbine and the load are arranged on a common frame, thus forming a single unit which is tested in the erection and testing yard or site prior to being transported to final destination. The common frame is then transported to final destination and mounted on a skid. A modular arrangement of this kind is particularly useful, since it allows complete assembling and testing of the rotary machines prior to shipping and installation to final destination.\n\nLarge gas turbines, both aero-derivative gas turbines as well as heavy duty gas turbines above 40 MW, are usually not modularized due to their large dimensions. Commonly, the various components of a gas turbine plant are transported separately from the site of manufacturing to the final destination. The foundation is prepared at the final site of destination and the individual machines are then mounted on the foundation.",
  "cpc": [
    "F02C 7/143",
    "E04H 5/02",
    "F01D 25/285",
    "F02C 7/18",
    "F02C 7/20",
    "F05D 2220/32",
    "F05D 2230/51",
    "F05D 2230/68",
    "F05D 2240/91",
    "F05D 2250/80",
    "F05D 2260/02",
    "F05D 2260/20",
    "F05D 2260/213",
    "F05D 2260/98",
    "F16M 1/04",
    "F25J 1/0022",
    "F25J 1/0259",
    "F25J 1/0278",
    "F25J 1/0283",
    "F25J 1/0296",
    "F25J 2290/42"
  ],
  "ipc": [
    "B66C 17/06",
    "F01D 15/10",
    "F02C 6/02",
    "F02C 7/20",
    "F25J 1/00",
    "F02C 7/143",
    "F25J 1/02",
    "F01D 25/28",
    "F02C 7/18"
  ],
  "assignees": [
    "Nuovo Pignone Technologie SRL"
  ],
  "inventors": [
    "Marco Giancotti",
    "Andrea RIGHESCHI",
    "Luciano GUIDOTTI",
    "Michele CECARINI"
  ],
  "filing_date": "2017-02-16",
  "publication_date": "2020-10-06",
  "grant_date": "2020-10-06",
  "priority_date": "2016-02-18",
  "application_number": "US-201716077333-A",
  "family_id": "55861063",
  "cited_by_count": 2,
  "citations": [
    "US5758485A",
    "US20040016245A1",
    "US20150184591A1",
    "WO2014028961A1",
    "WO2015086464A1"
  ]
}