Robotic multi-jet system to coat photocatalyst inside glass tube

A robotic multi-jet system, comprising:

• a robot having a spray section, a drier section, and a catalyst section;
• wherein the drier section comprises a warm air blower;
• the catalyst section comprises a photocatalyst tank, and
• the spray section comprises a plurality of jet extensions, wherein each jet extension terminates in one or more jets;
• wherein the photocatalyst tank contains a submersible pump;
• and
• wherein a first jet extension is fluidly connected to the photocatalyst tank through the submersible pump and is configured to spray a uniform layer of a photocatalyst contained in the photocatalyst tank through a first set of jets, and a second jet extension is mechanically connected to the drier section in fluid communication with the blower and is configured to blow a gas onto an inner surface of a tube through a second set of jets;
• wherein the first and second jet extensions are made of stainless steel;
• wherein the drier section and the catalyst section are separate sections that are connected by a metal bend chain link;
• wherein both the drier section and the catalyst section are separately mounted on wheels configured to support and move the robotic multi-jet system on the inner surface of the tube;
• wherein the spray section, the drier section, and the catalyst section are laterally connected with the drier section at a first end, the spray section at a second end and the catalyst section in between the first and second ends;
• wherein the first set of jets are located at a terminal end of the second end;
• wherein the second set of jets are located in between the first set of jets and the catalyst section;
• and
• a motor that is electrically connected to a battery mounted within the robot, wherein the motor is pivotally mounted to the wheels and configured to move the robotic multi-jet system on the wheels across the inner surface of the tube.