Provided is a chemical injection system for connection to a chemical tank and a process line. The system includes a pump box configured to attach to the tank, the pump box including a body defining an interior, a pump assembly disposed within the interior of the body of the pump box, and an injection assembly configured to be fluidly coupled to the pump box. The injection assembly includes an injection lance having a flange and a stem, a first seal abutting a first side of the flange of the injection lance, and a second seal abutting a second side of the flange of the injection lance.

Provided is a chemical injection system for connection to a chemical tank and a process line. The system includes a pump box configured to attach to the tank, the pump box including a body defining an interior, a pump assembly disposed within the interior of the body of the pump box, and an injection assembly configured to be fluidly coupled to the pump box. The injection assembly includes an injection lance having a flange and a stem, a first seal abutting a first side of the flange of the injection lance, and a second seal abutting a second side of the flange of the injection lance.

One or more boost pumps for a liquid hydrogen fuel system are disposed within the fuel tank and fully flooded. An electrical connector of each boost pump is sealed from the fuel tank and accessible from an exterior of the fuel tank while the boost pump is installed. Each boost pump can be independently replaced using a toolbox. Each boost pump is purged of fuel before being replaced by introducing a gas at a center region of the boost pump. The toolbox and new boost pump are purged prior to removal of the old boost pump. Each boost pump can be formed from modular components.

One or more boost pumps for a liquid hydrogen fuel system are disposed within the fuel tank and fully flooded. An electrical connector of each boost pump is sealed from the fuel tank and accessible from an exterior of the fuel tank while the boost pump is installed. Each boost pump can be independently replaced using a toolbox. Each boost pump is purged of fuel before being replaced by introducing a gas at a center region of the boost pump. The toolbox and new boost pump are purged prior to removal of the old boost pump. Each boost pump can be formed from modular components.

Embodiments of the present invention are related to a centrifugal pump system including a cylinder. The cylinder may have a cylinder bottom with a cylinder inlet and lower chamber, a cylinder body with a plurality of longitudinal channels, and a cylinder top with a plurality of spouts. The system may include an annulus with a circular channel and an outlet. The cylinder and lower chamber may be structured to rotate. The dimensions of the longitudinal channels may be sized by dividing the cylinder inlet area by the number of channels and in some embodiments reducing that quotient. Furthermore, the spouts may further reduce the area of fluid flow delivered by the longitudinal channels.

Embodiments of the present invention are related to a centrifugal pump system including a cylinder. The cylinder may have a cylinder bottom with a cylinder inlet and lower chamber, a cylinder body with a plurality of longitudinal channels, and a cylinder top with a plurality of spouts. The system may include an annulus with a circular channel and an outlet. The cylinder and lower chamber may be structured to rotate. The dimensions of the longitudinal channels may be sized by dividing the cylinder inlet area by the number of channels and in some embodiments reducing that quotient. Furthermore, the spouts may further reduce the area of fluid flow delivered by the longitudinal channels.

One or more boost pumps for a liquid hydrogen fuel system are disposed within the fuel tank and fully flooded. An electrical connector of each boost pump is sealed from the fuel tank and accessible from an exterior of the fuel tank while the boost pump is installed. Each boost pump can be independently replaced using a toolbox. Each boost pump is purged of fuel before being replaced by introducing a gas at a center region of the boost pump. The toolbox and new boost pump are purged prior to removal of the old boost pump. Each boost pump can be formed from modular components.

One or more boost pumps for a liquid hydrogen fuel system are disposed within the fuel tank and fully flooded. An electrical connector of each boost pump is sealed from the fuel tank and accessible from an exterior of the fuel tank while the boost pump is installed. Each boost pump can be independently replaced using a toolbox. Each boost pump is purged of fuel before being replaced by introducing a gas at a center region of the boost pump. The toolbox and new boost pump are purged prior to removal of the old boost pump. Each boost pump can be formed from modular components.

A centrifugal pump system including a cylinder with a cylinder bottom having a cylinder inlet and lower chamber, a cylinder body including a plurality of longitudinal channels, and a cylinder top including a plurality of spouts. The system also includes an annulus with a circular channel and outlet as well as a motor. The motor is structured to rotate the cylinder with less energy once the cylinder has achieved a threshold rotations per minute.

A centrifugal pump system including a cylinder with a cylinder bottom having a cylinder inlet and lower chamber, a cylinder body including a plurality of longitudinal channels, and a cylinder top including a plurality of spouts. The system also includes an annulus with a circular channel and outlet as well as a motor. The motor is structured to rotate the cylinder with less energy once the cylinder has achieved a threshold rotations per minute.