361results about "Boiler supporting/setting arrangements" patented technology

A tube support device is used with tube bundle devices such as heat exchangers or, condensers with in-line tube arrangements (rectangular tube configuration) to mitigate the possibility of tube damage from flow-induced vibration in the tube bundle. The tube support comprises an elongated member or strip which is intended to be inserted in a tube lane between the tubes of the tube bundle. Raised-tube-engaging zones which include transverse, arcuate tube-receiving saddles are disposed along the length of the strip at successive longitudinal locations corresponding to the tube positions in the bundle. These tube-engaging zones extend laterally out, away from the medial plane of the strip, so that the saddles receive and closely hold the tubes on opposite sides of the tube lane. The support device may be made of two strips joined back-to-back with the tube-engaging zones extending out from one face of each strip or, alternatively, by a single strip with longitudinal slits which enable the tube-engaging zones to extend out on alternate faces of the strip at each tube location.

A method of constructing an exhaust heat recovery boiler. A required number of heat transfer tube group panel modules (20) are produced in an appropriate size according to design specifications of HRSG, where the heat transfer tube group panel modules (20) each have a large number of heat transfer tubes (6), heat transfer tube group panels (23) constituted of upper and lower collection tubes (7, 8) for the heat transfer tubes (6), a casing (1) for the heat transfer tube group panels (23), heat transfer tube group panel supporting beams (22) provided outside a ceiling wall portion of the casing (1), and a vertical and horizontal module frames (24, 25) provided outside the casing (1). Main frames for supporting the modules (20), including main pillars (33), main beams (34), and bottom wall portion pillars (36), are constructed in advance in a construction site of the heat recovery boiler (HRSG). Each module (20) is transported to the construction site and lowered by a crane (42) into between adjacent main pillars (33). Supporting beams (22) of each module (20) are placed at the height of installation of the main beam (34). Then the horizontal module frames (25), the main beams (34), and the bottom wall portion pillars (36) are connected and fixed, and the vertical module frames (24) and the main pillars (33) are connected and fixed.

The invention relates to a suspension structure of a pendent tube used for an S-shaped tube panel. The invention is characterized in that the suspension structure comprises two tube clamps buckled on the tube panel oppositely; a steel plate is inserted in each tube clamp; the two sides of the tube clamp are respectively provided with one pendent tube; and a supporting steel plate used for supporting the tube panel is horizontally arranged on the pendent tube. The suspension structure has the advantages that due to the simple structure, the pendent tube is processed and installed more conveniently; the number of the tube clamp can be increased or decreased according to the actual situation, thereby effectively preventing the tube clamps from leaving the rank; and whether the space between tubes in the tube panel is regular or not, the tube panel can be suspended on the pendent tube by adjusting the stressed point by the tube clamps in different specifications.

A structural framework for supporting the heat exchanger of a steam generator, the former being comprised of serpentine tubes having sloped segments to facilitate the drainage of water from the heat exchanger when the steam generator is shutdown. The structural framework includes paired groups of vertically and diagonally extending first support members contiguously straddling the sloped-tube segments. The paired first support members are rigidly connected by second support members which extend between adjacent sloped-tube segments. The structural framework preserves the spacing between the sloped-tube segments and prevents direct contact between adjoining tube surfaces, but is not attached to the straddled tube segments and, thus, provides a tube supporting fit that is loose enough to permit the tubes to move freely due to expansion and contraction at different rates from that of the structural framework.

A solar boiler includes a boiler support defining an axis along an inboard-outboard direction. A hanger rod is rotatably mounted to the boiler support. A bracket is rotatably mounted to the hanger rod, and a solar boiler panel is mounted to the bracket. The solar boiler panel defines a longitudinal axis that is substantially perpendicular with the axis of the boiler support. The hanger rod connects between the boiler support and the bracket to support the weight of the solar boiler panel from the boiler support. The hanger rod and bracket are configured and adapted to maintain a substantially constant orientation of the bracket during inboard and outboard movement of the bracket relative to the boiler support.

A tube support structure for heat transfer tubes in a steam generator has a plurality of tube support bars which are installed between the heat transfer tubes. At least one of the support bars has a first metal layer and a second metal layer. The first metal layer is preferably spot welded to the second metal layer at intervals. The first metal layer and second metal layer have different thermal expansion coefficients so that at room temperature the support bar is flat, and at the operating temperature of the steam generator the first layer forms a convex shape between the intervals to support the adjacent tube.

With an installation construction method for boiler facilities, the boiler facilities comprise a boiler building configured of a steel structure, and a boiler main unit suspended within the boiler building from the upper portion of the boiler building. A portion of the boiler building is constructed, a portion of the boiler main unit is suspended from the upper portion of the partially-constructed boiler building, and while the remaining steel structure portions are being added to the partially-constructed boiler building so as to construct the boiler building, the remaining portions of the boiler main unit are added to complete the boiler main unit.

A means of offsetting semi-circular tube support plates typically present in heat exchangers with cross flow baffles, such as axial flow economizers, utilizing the motive force of steam generator pressurization. The offset slightly flexes the tubes, thereby providing a preload which minimizes the potential for tube vibration and wear.