Fryer and associated heat exchange system

摘要

A fryer unit includes a vat and heat exchange system with multiple passes within the fryer vat. Additional heat exchange passes may be provided in ductwork along the exterior surface of the lateral vat sidewalls.

主权项

1. A heating system, comprising:
a tank having a bottom side, a front side, a rear side, a left side and a right side; a heat exchange system associated with the tank and including a heat exchange tube arrangement with an associated gaseous fuel burner, the heat exchange tube arrangement including:
a first pass within the tank and having an inlet end and an outlet end, the inlet end located toward the front side of the tank, the outlet end located toward the rear side of the tank;a left second pass within the tank and located between the left side of the tank and the first pass, the left second pass having an inlet end positioned toward the rear side of the tank and an outlet end located toward the front side of the tank, the inlet end of the left second pass connected to receive hot gases from the outlet end of the first pass;a right second pass within the tank and located between the right side of the tank and the first pass, the right second pass having an inlet end positioned toward the rear side of the tank and an outlet end located toward the front side of the tank, the inlet end of the right second pass connected to receive hot gases from the outlet end of the first pass;a left third pass located within the tank, the left third pass having an inlet end positioned toward the front side of the tank and an outlet end located toward the rear side of the tank, the inlet end of the left third pass connected to receive hot gases from the outlet end of the left second pass, the left third pass and left second pass are spaced apart vertically between a top of the tank and the bottom side of the tank;a right third pass located within the tank, the right third pass having an inlet end positioned toward the front side of the tank and an outlet end located toward the rear side of the tank, the inlet end of the right third pass connected to receive hot gases from the outlet end of the right second pass, the right third pass and right second pass are spaced apart vertically between the top of the tank and the bottom side of the tank.