Patent KR-20130070835-A (KR)
Title: The standard method of gas turbine generator
Inventor: PARK SUNG BUM
IPC: F02C7/20
Filed: 2011-12-20
Abstract: PURPOSE: An arrangement standardization method for a gas turbine generator is provided to perform an intact construction of a gas turbine generator without trial and error, and collision when the gas turbine generator is constructed in a marine oil production plant, and to reduce the amount of time which is consumed for the construction. CONSTITUTION: An arrangement standardization method for a gas turbine generator comprises the following steps. The construction of a floating oil production unit, and the models, sizes, and quantity of equipment of a gas turbine generator manufacturer are determined; and a contract of the construction is awarded(S1). A rotary shaft of a gas turbine generator is installed to be parallel with the axial direction of a ship; and a ship motion allowance is confirmed by the gas turbine generator manufacturer, and reflected in the installation of the rotary shaft(S2). The installation direction of equipment is set up for an air intake hole of a turbine to be faced with the wind which is strong on an installation spot, and a duct is changed to be in favor of the strong wind direction instead of the direction of the ducts of a turbine combustion intake hole and a combustion gas discharge hole which are normally in the axial direction of the ship(S3). The height of a combustion gas discharge chimney is confirmed by 'Smoke Distribution Stability Evaluation Analysis'; and the combustion gas discharge chimney is distance minimally from a heliport, and built with a minimally required height which is not over the minimum obstruction clearance altitude(S4). Intervals among turbine engines of the parallel turbine equipment is determined by considering a minimum space for an engine checkup and the location of a column of the discharge chimney which is supported by an upper deck of the turbine engine, and the turbine engines are symmetrically designed to minimize an engine checkup space to share a utility space(S5). The height and size of the turbine engine which supports a filter house of the combustion air intake hole and the combustion gas discharge chimney are considered and determined in the light of arrangements of other supplementary facilities(S6). A monorail is placed according to a removal and transfer plan for components which are required for maintenance and checkup for the equipment, and an access and a platform are arranged(S7). [Reference numerals] (AA) Establish a floating oil production unit(floating production storage offloading offshore unit); (BB) Order by determining the equipment model, size, and quantity of a gas turbine generator manufacturer; (CC) Parallelly install the rotary shaft of a gas turbine generator with the axial direction of a ship; (DD) Confirm a ship motion allowance of equipment from the gas turbine generator manufacturer, and reflect; (EE) Set the direction of the equipment such that a turbine combustion air intake hole faces the direction of strong wind on an installation spot; (FF) Change a duct to be in favor of the strong wind direction instead of the direction of the ducts of a turbine combustion intake hole and a combustion gas discharge hole which are normally in the axial direction; (GG) Confirm the height of a combustion gas discharge chimney by 'Smoke Distribution Stability Evaluation Analysis' and ensure a distance from a heliport to be minimally 30m or more; (HH) Possibly build the combustion gas discharge chimney to have the required minimum height and not to be higher than the minimum obstruction clearance altitude of helicopter flight; (II) Determine intervals among turbine engines of the parallel turbine equipment by considering a minimum space for an engine checkup and the location of a column of the discharge chimney; (JJ) Share a utility space by symmetrically designing opposite turbine engines for minimizing the checkup space of the turbine engines; (S1-1) Establish a fixed oil production unit(Fixed jacket offshore platform); (S6) Determine the height and size of a turbine engine deck for supporting a filter house of the combustion air intake hole and the combustion gas discharge chimney by considering the arrangements of other supplementary facilities; (S6-1) Maintain sufficient distances between the air intake holes and the discharge holes of the turbine engines for air-conditioning in a wide space in order to prevent the recirculation of exhaustion air to the intake holes; (S6-2) Maintain the distance of the combustion air intake hole from the radius of latent gas cloud around equipment with volatile liquid to be minimally 2-3m; (S7) Place a monorail according to a removal and transfer plan for components which are required for maintenance and checkup for the equipment and arrange an access and a platform