An apparatus for aligning tubes of a heat exchanger includes a generally planar body having an insertion end and an actuator end, a first driving member received by the body and extending between the insertion end and the actuator end, the first driving member being movable axially with respect to the body, and a first biasing member operatively connected to the first driving member. The first driving member is actuatable to move the first biasing member between a clearance position in which the first biasing member lays generally flat within respect to the body, and an extended position in which the first biasing member extends generally perpendicular from the body.

An apparatus for aligning tubes of a heat exchanger includes a generally planar body having an insertion end and an actuator end, a first driving member received by the body and extending between the insertion end and the actuator end, the first driving member being movable axially with respect to the body, and a first biasing member operatively connected to the first driving member. The first driving member is actuatable to move the first biasing member between a clearance position in which the first biasing member lays generally flat within respect to the body, and an extended position in which the first biasing member extends generally perpendicular from the body.

A particle separator module and a heat exchange chamber module connectable to a circulating fluidized bed boiler. The particle separator module includes 2N vertically aligned steam tubes, N being an integer greater than one. Each of the vertically aligned steam tubes is attached to a boiler upper portion and extends downwards to a predetermined level. Each of the 2N vertically aligned steam tubes is attached to one of N first beams. Each of the N first beams is suspended to hang in a horizontal position at the predetermined level by two adjacent steam tubes of the 2N vertically aligned steam tubes. N second beams are attached in a horizontal position to the top surface of the heat exchange chamber module, which is arranged to be suspended from the particle separator module by having each of the N second beams suspended by two adjacent beams of the N first beams.

A support system for a boiler includes a plurality of support assemblies arranged intermediate a ground surface and the boiler. Each of the support assemblies include a first support leg having a lower end operatively connected to the ground surface and an upper end operatively connected to the boiler, a second support leg having a lower end operatively connected to the ground surface and an upper end operatively connected to the boiler, and at least one spring operatively connected to the first support leg and the second support leg and extending generally horizontally between the first support leg and the second support leg.

A circulating fluidized bed apparatus, comprising a circulating fluidized bed furnace 10 with an outer furnace wall 10r and at least one heat exchange chamber 20, which is friction-locked to a section of the outer furnace wall 10r, as well as a platform PL which extends horizontally and at a distance to an upper ceiling 10c of said heat exchange chamber 20, wherein the heat exchange chamber 20 is further supported by at least one leverage 50, which is arranged onto said platform PL and extends from a first end 50f, pivotally mounted to the outer furnace wall 10r, away from said furnace wall 10r to a second end 50s, and a fastener 60 extending downwardly from said second end 50s of said leverage 50 to a part of the heat exchange chamber 20 offset the outer furnace wall 10r.

A circulating fluidized bed apparatus, comprising a circulating fluidized bed furnace 10 with an outer furnace wall 10r and at least one heat exchange chamber 20, which is friction-locked to a section of the outer furnace wall 10r, as well as a platform PL which extends horizontally and at a distance to an upper ceiling 10c of said heat exchange chamber 20, wherein the heat exchange chamber 20 is further supported by at least one leverage 50, which is arranged onto said platform PL and extends from a first end 50f, pivotally mounted to the outer furnace wall 10r, away from said furnace wall 10r to a second end 50s, and a fastener 60 extending downwardly from said second end 50s of said leverage 50 to a part of the heat exchange chamber 20 offset the outer furnace wall 10r.

A method for installing a heat recovery steam generator (1) with a plurality of pre-assembled modules (10) includes arranging a pre-assembled module (10) at an installation site. The pre-assembled module (10) includes a functional unit of the heat recovery steam generator (1) housed in a casing structure (12). The casing structure (12) includes a top casing (12a), a bottom casing (12b) and a side casing (12c). An open side (15) is defined opposite to the side casing (12c). The module (10) is arranged horizontally at the installation site with the open side (15) facing downward and the side casing (12c) facing upward. The method includes attaching a structural steel (13) to the side casing (12c) in a horizontal position without lifting the module (10). The module (10) with the attached structural steel (13) is lifted to a vertical position and secured to a foundation (60). Also described is a method for pre-assembling the module (10) and a method for transporting the pre-assembled module (10) to the installation site.

A structure for seismic isolation 10 provided on a structure plane 17 including a pair of left and right columns 5, 5 spaced apart in a horizontal direction, and a pair of upper and lower beams 7A, 7B spaced apart in a vertical direction, wherein the structure for seismic isolation comprises: a seismic isolation device 11 provided in a middle of each of the column 5, 5 to be displaced toward the beam 7A; and a horizontal rigid bearing element that is provided between an area in which the seismic isolation device 11 is provided and the beam 7B and that includes a connection beam 13 connecting the pair of columns 5, 5 and vertical braces 15L, 15R.

A structure for seismic isolation 10 provided on a structure plane 17 including a pair of left and right columns 5, 5 spaced apart in a horizontal direction, and a pair of upper and lower beams 7A, 7B spaced apart in a vertical direction, wherein the structure for seismic isolation comprises: a seismic isolation device 11 provided in a middle of each of the column 5, 5 to be displaced toward the beam 7A; and a horizontal rigid bearing element that is provided between an area in which the seismic isolation device 11 is provided and the beam 7B and that includes a connection beam 13 connecting the pair of columns 5, 5 and vertical braces 15L, 15R.

A bottom-supported boiler includes a boiler pressure body having a rectangular horizontal cross section formed by joining four planar water tube walls pairwise together so as to form four corner sections, and a support construction. The support construction includes four vertical columns vertically supported to the ground, the vertical columns being arranged outside of the boiler pressure body so that adjacent to each of the corner sections is arranged one of the four vertical columns. Each of the vertical columns is attached to the respective corner section so that vertical loads of the boiler pressure body are balanced by the four vertical columns.