Heat exchanger with closely packed seats tubes - modified to facilitate and in-service adjustments

摘要

The main patent concerned a heat exchanger made up of tubes in narrow bundles with somewhat wider caps at each end: to save space the bundles were set at varying heights so that each cap rested against the shank of a bundle rather than against another cap. The finished unit was to be put inside the concrete shielding of a nuclear power plant, and as designed it would have been impossible to disconnect it wholly or partly had it developed a fault. By this patent of addition, therefore, one or more of the central bundles will be replaced by a single wide open tube to give access (a) to the joint by which the unit is connected to the rest of the plant and (b) to the ends of the pipes that connect with the individual bundles (so that a faulty bundle can be plugged off - by the design of the unit it cannot be withdrawn).