Mobile power generation system including fixture assembly
Mobile power generation system and methods using a fixture to position a generator pad assembly in a mobile power generation system include providing a trailer including a rear end, a front end, a bottom end, and a top end, a gas turbine housed inside the trailer having an internal base, and an electrical generator coupled to the gas turbine to generate electricity and housed inside the trailer. The generator pad assembly may include a plurality of generator pads fixed to the internal base, a respective plurality of sole plates positioned above the plurality of generator pads at a spacing, and a supportive material positioned around the plurality of generator pads and the respective plurality of sole plates to fix them in an aligned position. The fixture may be configured to fix the generator pad assembly to the internal base at the aligned position.
1. A mobile power generation system comprising:
a trailer including a rear end, a front end, a bottom end, and a top end defining therebetween an interior space that comprises an internal base;
a gas turbine housed inside the trailer in the interior space;
an electrical generator coupled to the gas turbine to generate electricity and housed inside the trailer in the interior space;
a generator pad assembly including a plurality of generator pads fixed to the internal base, a respective plurality of sole plates positioned above the plurality of generator pads at a spacing, and a supportive material positioned around the plurality of generator pads and the respective plurality of sole plates to fix them in an aligned position; and
a fixture configured to fix the generator pad assembly to the internal base at the aligned position.
2. The mobile power generation system of claim 1 , wherein the supportive material comprises a cured porous resinous material for chocking.
3. The mobile power generation system of claim 1 , wherein the supportive material positioned around the plurality of generator pads and the respective plurality of sole plates is disposed between the internal base and at about ¼ inches above a lower-facing surface of each sole plate.
4. The mobile power generation system of claim 1 , wherein the plurality of generator pads comprise four generator pads.
5. The mobile power generation system of claim 1 , wherein the spacing is disposed along a z-axis at a range of from about ¼ inches to about ½ inches.
6. The mobile power generation system of claim 1 , wherein the fixture comprises a plurality of base beams aligned and configured to form a desired alignment shape.
7. The mobile power generation system of claim 6 , wherein the desired alignment shape formed by the plurality of base beams is a rectangle.
8. The mobile power generation system of claim 6 , wherein the fixture comprises a plurality of mounting pads.
9. The mobile power generation system of claim 8 , wherein the plurality of mounting pads extend from at least two opposing base beams of the plurality of base beams.
10. The mobile power generation system of claim 8 , wherein a first pair of mounting pads are positioned to extend from near ends of a first base beam, and a second pair of mounting pads are positioned to extend from near ends of a second base beam placed opposite to and in parallel with the first base beam.
11. The mobile power generation system of claim 8 , wherein the plurality of mounting pads are configured to be sized and shaped to be seated within and atop the plurality of generator pads when the fixture is used to position the plurality of generator pads to the internal base.
12. The mobile power generation system of claim 8 , wherein the plurality of mounting pads are configured to be sized and shaped to be seated within and atop the respective plurality of sole plates when the fixture is used to position the respective plurality of sole plate above the plurality of generator pads when disposed on the internal base.
13. A method for using a fixture to position a generator pad assembly in a mobile power generation system, the method comprising:
seating a plurality of mounting pads of the fixture atop a plurality of generator pads;
disposing the plurality of generator pads on one or more datum reference points on an internal base of the mobile power generation system in a desired alignment position comprising an x-position and y-position with respect to the internal base;
removing the fixture from the plurality of generator pads;
seating the plurality of mounting pads of the fixture atop a respective plurality of sole plates;
establishing the respective plurality of sole plates attached to the fixture in a floating z-position with respect to the plurality of generator pads to form the generator pad assembly;
pouring a chocking compound around the generator pad assembly;
curing the chocking compound for a period of time; and
removing the fixture from the generator pad assembly such that the generator pad assembly with the chocking compound after curing is in a set position configured to receive an electrical generator in a seated position.
14. The method of claim 13 , wherein the one or more datum reference points are established between the fixture and the internal base such that a center of the fixture aligns with a center of a section of the internal base on which to seat the electrical generator.
15. The method of claim 14 , wherein the center of the section of the internal base is established by use of a string line for alignment and by use of end weight markers to mark one or more desired alignment points along the string line.
16. The method of claim 13 , further comprising welding the plurality of generator pads to the internal base in the desired alignment position before or after removing the fixture.
17. The method of claim 13 , wherein establishing the respective plurality of sole plates attached to the fixture in a floating z-position with respect to the plurality of generator pads comprises positioning a bolt between each generator pad and each respective sole plate at the floating z-position.
18. The method of claim 13 , wherein the period of time for curing is greater than 12 hours.
19. The method of claim 13 , further comprising removing any remaining bolts or studs from the generator pad assembly after the curing.