DISMOUNTABLE HEAT EXCHANGER Russian patent published in 2015 - IPC F28F11/02 

FIELD: heating.

SUBSTANCE: in dismountable heat exchanger containing tube side flange 18, enclosure 11, heat-exchanging tubes bundle 5, inserted by their ends in coaxial holes 3, 4 of tube plates, each of them is made by internal 1 and external 2 mechanically connected plates and sealing ring elements between them 6, their centers coincide with axis of the heat- exchanging tubes 5, in flange 10 of the enclosure 11 a groove 9 is made, in it via the seal 8 an internal plate 1 is installed. In the internal plate 1 at end face from side of the external plate 2 concentric borings 7 of outputs of holes 3 are made for installation of the heat-exchanging tubes 5. In borings 7 the sealing ring elements 6 installed on the heat-exchanging tubes 5 are inserted, they close gaps between the external surfaces of the heat-exchanging tubes 5 and internal surfaces of holes in plates 1, 2. Bolts 13 are installed in coaxial smooth holes 12 of flange 10 of the enclosure 11, smooth holes 16 of flange 18, and in thread holes 14 of the external plate 2.

EFFECT: increased reliability of seal of heath-exchanging tubes, simplified assemblage/disassemblage of the heat exchanger.

10 cl, 2 dwg