A head module for a large-scale container, a large-scale container having the head module, and methods for manufacturing the head module and the large-scale container. The method for manufacturing a head module comprises providing a head having an annular opening, the head being composed of a plurality of petals, providing a plurality of cylinder plates, and forming a head cylindrical ring, connecting in order the plurality of cylinder plates to the end surface of the annular opening and joining facing sides of all adjacent cylinder plates. Based on the unfitness of the petals at the annular opening of the head, gaps between adjacent cylinder plates may be adjusted, and/or the positions of the cylinder plates on the end surface of the annular opening of the head may be adjusted radially inwards or outwards.

A head module for a large-scale container, a large-scale container having the head module, and methods for manufacturing the head module and the large-scale container. The method for manufacturing a head module comprises providing a head having an annular opening, the head being composed of a plurality of petals, providing a plurality of cylinder plates, and forming a head cylindrical ring, connecting in order the plurality of cylinder plates to the end surface of the annular opening and joining facing sides of all adjacent cylinder plates. Based on the unfitness of the petals at the annular opening of the head, gaps between adjacent cylinder plates may be adjusted, and/or the positions of the cylinder plates on the end surface of the annular opening of the head may be adjusted radially inwards or outwards.

A gas liquefaction and/or separation unit comprising at least one chamber, optionally insulated, of slender shape, wherein the chamber is arranged on a first concrete block and the chamber is anchored to the ground by means of at least three stay cables, each connected to a second separate concrete block, the second concrete blocks connected to the stay cables being arranged on the ground at the corners of a polygon, the first and second blocks having a depth below the reference level of the ground not exceeding 1 m.

Apparatus and methods for aligning heavy metal plates during tank construction using an alignment device, which is temporarily attached to the heavy metal plates with a pair of locking members pivotably coupled to a frame and a pair of adjustable alignment members attached to the frame between the pair of locking members. The alignment device may be attached to the heavy metal plates without the inefficiencies, hazards and other disadvantages associated with welding.

Apparatus and methods for aligning heavy metal plates during tank construction using an alignment device, which is temporarily attached to the heavy metal plates with a pair of locking members pivotably coupled to a frame and a pair of adjustable alignment members attached to the frame between the pair of locking members. The alignment device may be attached to the heavy metal plates without the inefficiencies, hazards and other disadvantages associated with welding.

A pond system includes a single-piece drop-in flexible liner sized and shaped to partially suspend within a rigid sidewall, creating a cavity that may function as a liquid reservoir. The single-piece drop-in flexible liner includes a base portion surrounded by a sidewall portion configured to rest adjacent to an interior-facing surface of the rigid sidewall. The single-piece drop-in flexible liner further includes multiple tensioning tabs each with a fixed end attached to the base portion and a free end opposite the fixed end. Each of the multiple tensioning tabs is configured to extend under the rigid sidewall and radially outward from the base portion. The pond system further includes a means for securing the free end of each of the multiple tensioning tabs at a location external to the perimeter enclosed by the rigid sidewall.

A pond system includes a single-piece drop-in flexible liner sized and shaped to partially suspend within a rigid sidewall, creating a cavity that may function as a liquid reservoir. The single-piece drop-in flexible liner includes a base portion surrounded by a sidewall portion configured to rest adjacent to an interior-facing surface of the rigid sidewall. The single-piece drop-in flexible liner further includes multiple tensioning tabs each with a fixed end attached to the base portion and a free end opposite the fixed end. Each of the multiple tensioning tabs is configured to extend under the rigid sidewall and radially outward from the base portion. The pond system further includes a means for securing the free end of each of the multiple tensioning tabs at a location external to the perimeter enclosed by the rigid sidewall.

This disclosure may generally relate to a pressured vessel and, more particularly, to systems and methods for pressurizing a pressured vessel by producing a biogas using a recessed roof system. A pressured vessel may comprise a shell, wherein the shell may comprise a plurality of panels. The pressured vessel may further comprise a recessed roof and a deck. A method of collecting biogas from a pressure vessel may comprise disposing a liquid into the pressure vessel, disposing an anaerobic microorganism into the pressure vessel, adjusting a path of the biogas with a protruding baffle, collecting the biogas with the recessed roof, applying pressure to the outside of the recessed roof with the liquid such that the biogas pressure inside the recessed roof is increased, and removing the biogas from inside the recessed roof through a gas collection system.

The invention relates to a combination of a foundation anchor and energy damper for vertical tanks or similar containers for liquids with a thin wall and continuous support, comprising an energy dissipation component centrally connected to a foundation anchor component by means of a linking component, the energy dissipation component comprising one or more superimposed and horizontally arranged energy dissipating plates with a rhombic shape truncated at the vertices thereof, wherein the shorter diagonal is normal to the wall of the tank and the side ends or vertices corresponding to the longer diagonal have quadrangular extensions for support on a load transmission component that is connected to the wall of the tank so as to transmit and distribute the forces developed by the one or more energy dissipating plates. Alternatively, the energy dissipating plates are trapezoidal with the longer parallel side tangential to the wall of the tank.

A heat-insulated tank with a volume of 200-20,000 m.sup.3 for storage of oil and oil products includes a heat-insulated wall, roof and bottom installed on a foundation. The wall and roof are equipped with supporting discharge skirts forming sections, the heat-insulated coating made of foam glass blocks that fill sections and form control joints in the heat insulation coating. The tank includes a top coat made of metal sheets located at an external surface of foam glass blocks. The foam glass blocks including a lower row of detachable blocks and additional rows coupled to each other and a surface of the tank via an adhesive. The technical result is improved safety and strength of the tank heat insulation at loads on its structure caused by filling and discharge of the raw material and environmental factors, and relatively even temperature control of the oil and oil products.