摘要:
A method for repairing a bundled tube fuel injector includes removing a portion of a pre-mix tube, aligning a tube tip with the remaining portion pre-mix tube and fixedly connecting the tube tip to the pre-mix tube. The method may further include removing an aft plate and an outer shroud from the bundled tube fuel injector so as to expose the pre-mix tube.
摘要:
A replacement fitting assembly for a pipe is disclosed including a split connector with a first wall portion having a first externally threaded portion and a first support portion, and a second wall portion having a second externally threaded portion and a second support portion, the first and second outer wall portions being configured to be aligned with one another to form a tubular opening, and a fastener having a side wall defining a central longitudinal opening, the side wall including an internally threaded nut portion configured to engage the first and second externally threaded portions of the connector, and an extension portion adjacent the nut portion, the side wall having a gap configured to permit lateral entry of a pipe into the longitudinal opening. A method of replacing a fitting assembly also is described.
摘要:
A leakage shield for an air to liquid heat exchanger includes a drain pan, a liquid header panel, and a closure bar. The drain pan has a first side and a second side opposite the first side. The liquid header panel has a lower end attached to the first side of the drain pan, and extends vertically upwards from the first side of the drain pan. The closure bar panel has a lower end attached to the second side of the drain pan, and extends vertically upwards from the second side of the drain pan.
摘要:
A flue gas air preheater and a method for the installation of air pipes for a flue gas air preheater. The method includes cutting an air pipe connected to the preheater and detaching the portion of the air pipe that is to be removed from the preheater for replacement; fitting a separate new air pipe in place of the air pipe portion to be removed; and connecting the new air pipe to the remaining portion of the air pipe in a sealed manner. The fixing may be performed utilizing a fastening sleeve fixed to the end of the new air pipe and inserting it in the remaining portion of the air pipe. The fixing may be performed by a mechanical sealing solution without welding. The air pipe component for the flue gas air preheater includes an air pipe, and a fastening sleeve.
摘要:
A replacement fitting assembly for a pipe is disclosed including a split connector with a first wall portion having a first externally threaded portion and a first support portion, and a second wall portion having a second externally threaded portion and a second support portion, the first and second outer wall portions being configured to be aligned with one another to form a tubular opening, and a fastener having a side wall defining a central longitudinal opening, the side wall including an internally threaded nut portion configured to engage the first and second externally threaded portions of the connector, and an extension portion adjacent the nut portion, the side wall having a gap configured to permit lateral entry of a pipe into the longitudinal opening. A method of replacing a fitting assembly also is described.
摘要:
A method of remanufacturing coolers, such as exhaust gas recirculation coolers, is provided. The method includes providing an exhaust gas recirculation cooler having cooling tubes attached to a header plate and an outer shell. At least one opening is milled in the outer shell to expose a portion of the cooling tubes. Brazing material is then injected into the cooler through the opening such that the brazing material, when heated, forms a fillet around each cooling tube adjacent to the header plate. A cover positioned over the opening and the cooler is heated to a brazing temperature, such that the brazing material flows around the cooling tubes, thereby reinforcing the tubes and repairing cracks in the tubes. Clips having a C-shaped configuration may also be positioned within the cooling tubes to further strengthen and repair the cooling tubes.
摘要:
According to one aspect of the present disclosure, a part for an article of equipment includes a fluid conducting first region including a corrosion resistant first material, and a fluid conducting second region including a second material. The first region and the second region are either directly or indirectly joined by solid state welding to form a unitary fluid conducting part. According to another aspect of the present disclosure, a method for replacing at least one fluid conducting part of an article of equipment is disclosed wherein a replacement part is provided that includes a fluid conducting first region including a corrosion resistant first material, and a fluid conducting second region including a second material. The second material is substantially identical to the material of a region of the equipment on which the replacement part is mounted. The first and second regions are either directly or indirectly joined by solid state welding to form a unitary fluid conducting replacement part. The replacement part is secured to the article of equipment by a process comprising fusion welding the second material of the second region of the replacement part to the substantially identical material of the mounting region of the article of equipment.
摘要:
This present invention describes a novel type of internal exchanger intended to carry out Fischer-Tropsch synthesis. This exchanger has a modular design and comprises a central tube with partitions allowing at the same time the supply of coolant to the hairpins of the module and the recovery of the partially vaporized fluid from these same hairpins.
摘要:
A method for repairing a heat recovery steam generator (HSRG) header to tube attachment damage, includes providing an access window in the header opposite the damaged header to tube attachment location; removing the header to tube attachment damage; inserting a tapered stub tube into a header penetration centered axially immediately over the tube; effecting a profile weld between the header and the tapered stub tube at the header penetration from the inside surface of the header; welding the tapered stub tube to the existing tube through the header inside diameter; welding shut the access window; and completing a post weld heat treatment of all the welds.
摘要:
A method and apparatus for the repair of damaged tubes, such as heat exchanger tubes, comprising inserting a flow through plug into the damaged heat exchanger tube. The flow through plug is tapered and creates a press fit when inserted within the heat exchanger tube. The flow through plug has an aperture along its axis, thus allowing for flow lengthwise through the flow through plug.