Abstract: The present invention relates to devices and methods for containing gas leaks in pipelines. In particular, the present invention describes a device for eliminating gas leaks by sealing a gas leak in an expansion joint arranged between two pipes misaligned with each other, the device comprising a metallic structure comprising a sealing blanket, in which the metallic structure and blanket fully enclose the expansion joint using cables. In addition, the present invention describes a gas leak elimination device for sealing a gas leak in an expansion joint arranged between two aligned pipes, the device comprising a sealing blanket, steel cables, straps and fastening elements to fully enclose the expansion joint.

Abstract: A lance applicable to a boiler burner, the lance presenting a rigid shape. By means of the device disclosed herein, it becomes possible to carry out maintenance, assembly, disassembly and replacement of oil lances for boiler burners that are operational in places with limited space. The lance provided by the present utility model comprises a modular structure consisting of rigid elements, which allows achieving a correct positioning of the burner nozzle using this lance in relation to the boiler. Consequently, it is guaranteed that the boiler operates under ideal operating conditions, once the burning in the burner portion is controlled. For this purpose, the device disclosed in the present utility model comprises a hexagonal bar that provides the interconnection of a first tube to be interconnected with a second tube of greater diameter, wherein between the first tube and the second tube the arrangement of a sealing gasket is provided.

Abstract: The present invention refers to a device to repair leakage in high pressure shell-and-tube heat exchanger using gasket and tensioning by cases. The device aims to repair leakages in heat exchangers in flanged connections of large diameter where there is the gap or channel to allow for gasket placement. The device is fully screwed, with no risk of flash during its implantation and can be used at high temperatures and pressure, in addition to presenting an ease of manufacture/assembly, reducing implementation costs. Basically, the device comprises an adjustment screw holder, gasket compression ring, stabilizer support, and compression adjustment screws.