摘要:
A castable, moldable, or extrudable magnesium-based alloy that includes one or more insoluble additives. The insoluble additives can be used to enhance the mechanical properties of the structure, such as ductility and/or tensile strength. The final structure can be enhanced by heat treatment, as well as deformation processing such as extrusion, forging, or rolling, to further improve the strength of the final structure as compared to the non-enhanced structure. The magnesium-based composite has improved thermal and mechanical properties by the modification of grain boundary properties through the addition of insoluble nanoparticles to the magnesium alloys. The magnesium-based composite can have a thermal conductivity that is greater than 180 W/m-K, and/or ductility exceeding 15-20% elongation to failure.
摘要:
The present disclosure relates to a soil completely-covered tank system with a built-in valve chamber. The valve chamber includes a spherical tank body, a valve chamber, and a channel; an exterior of the spherical tank body is completely covered with soil, and the spherical tank body is supported by a stand column and is arranged on the ground, such that a gap is formed between the bottom of the spherical tank body and a ground foundation; the valve chamber is arranged between the spherical tank body and the ground foundation; a top opening of the valve chamber is connected to the bottom of the spherical tank body by means of a first connecting structure.
摘要:
A water containment apparatus includes a straight strut arrangement comprising a plurality of straight strut assemblies forming an alternating v-shape and inverted v-shape pattern; and a curved strut arrangement comprising a plurality of corner strut assemblies forming a desired curvature and connecting two straight strut arrangements to form a closed loop water containment system.
摘要:
A soil reinforcing device for reinforcing a ground supporting a load structure, wherein said soil reinforcing device comprises a first assembly comprising: a plurality of cells extending vertically and forming a cell mesh; a plurality of draining devices extending vertically and located in said cells.
摘要:
A water containment apparatus includes a straight strut arrangement comprising a plurality of straight strut assemblies forming an alternating v-shape and inverted v-shape pattern; and a curved strut arrangement comprising a plurality of corner strut assemblies forming a desired curvature and connecting two straight strut arrangements to form a closed loop water containment system.
摘要:
A kit of materials to make a support for one or more manhole rings during a concrete pour around a prefabricated grease interceptor includes a base, a plurality of vertical supports, and a peripheral grid to surround a top of the prefabricated grease interceptor at a position to support a manhole seating ring. The vertical supports are long enough that they extend from the base to the peripheral grid for most grease interceptor installations or can be cut to size to position the peripheral grid.
摘要:
A method for the construction of an improved tank base. A tank base is constructed for protection against accidental spills and/or leaks associated with a tank battery. The improved tank base comprises at least one part of a suitable substrate, which allows for the adhesion of an elastomer such as polyurea. Polyurea is preferably applied using a spray device which yields an average coverage of about 50-80 mils, and most preferably 60 mils. If more than one substrate is used, one or more substrates can be bound together with a fastening system. Once pressure is applied in the form of weight, the fastening system can be removed, resulting in an improved tank base having at least one seam and impervious to the fluid of the tank battery.
摘要:
A method for the construction of an improved tank base. A tank base is constructed for protection against accidental spills and/or leaks associated with a tank battery. The improved tank base comprises at least one part of a suitable substrate, which allows for the adhesion of an elastomer such as polyurea. Polyurea is preferably applied using a spray device which yields an average coverage of about 50-80 mils, and most preferably 60 mils. If more than one substrate is used, one or more substrates can be bound together with a fastening system. Once pressure is applied in the form of weight, the fastening system can be removed, resulting in an improved tank base having at least one seam and impervious to the fluid of the tank battery.
摘要:
The invention relates to a method for building cylindrical structures, preferably made of metal, on the basis of the construction methods referred to as “a method which begins the assembly by the top structure”, which provides high levels of safety in the various steps to be carried out. The method uses a shaping device for shell sheets, at least one stationary cabin for vertically aligning and welding sheets, movable cabins for horizontally welding the inside and outside, and supporting base devices which in combination provide a safe and comfortable working environment for the operators, as well as greater speed and finish quality for the tank to be built, even under harsh weather conditions.
摘要:
A method and apparatus for the corrosion protection of tank soil side bottoms is achieved by providing equipment to an existing storage tank as by installing a chime delivery system about the perimeter of the storage tank bottom plate, and introducing an appropriate amount of a corrosion inhibitor into the chime delivery system, whereby the corrosion inhibitor is readily admitted into the spaces between the substrate and the tank bottom plate. The system avoids any refurbishment of the tank and allows for easy introduction and replenishment of inhibitor without interruption of tank operations. The system also does not require any renovation of the tank, and does not require any replacement of the tank bottom plate panels.