HEAT EXCHANGER PLATE BUNCH Russian patent published in 2005 - IPC

FIELD: applicable in devices for conduction of heat exchanging processes between two media through a wall, in particular, in chemical, food, petroleum refining branches of industry.

SUBSTANCE: the heat exchanger plate bunch has a heat exchanger bank assembled of plane-parallel plates with bundles welded in pairs in boxes fixed at the ends in tube plates with a clearance to one another and forming tubular and intertubular ducts for input and output of the hot and cold products, two plane-parallel plates with partitions for overlapping the free area of the cross-section between the plate and the body of the heat exchanger, seal belt and a detachable mounting-transport support, the heat exchanger bank is made of several successively connected modules, each provided with two side shields made in the form of plates located along the bank, except its terminal zone, and secured on the plane-parallel plates, tube and intertube headers are formed in the zones of connection of the modules. Besides, in the bunch of the plate heat exchanger the tube header is made in the form of closed plane in the central part of the bank of the adjacent modules, and the intertube header is made with two channels, one channel on each lateral side of the bank, each channel is formed by an additional shield that is mounted in the terminal zone between the shields of the adjacent modules and connected to these shields and to the plane-parallel plates. The section of each channel of the intertube header is made in the form of a segment restricted from one side by the arc of the additional shield, whose radius equals half the diagonal of the bunch section, and from the other side - by a chord, whose length equal the width of the shield plate. The seal belt is made in the form of a cylinder-shaped obturator and installed in the zone of product output from the intertube channels.

EFFECT: simplified procedure of manufacture, transportation and mounting of the bunch in the body of the heat exchanger, improved conditions of heat exchanger sealing at passage of the heat exchange products through it, reduced expenditures on manufacture.

8 dwg, 4 cl