FIELD: heating.
SUBSTANCE: claimed heat exchanger tube plate comprises plate 1 and seal rings. Said plate has holes to laying of heat exchange tubes ends therein. Note here that every hole 4 of plate 1 is provided with at least one circular groove 10 for laying said seal rings 11. Grooves 10 are distributed at different heights in parallel planes of the plate body. Auxiliary tangential straight lines that belong to the groove side surfaces and located at beeline from vertical mirror axes parallel therewith of mutually closest grooves can cross the vases of said grooves facing each other. Heat exchange tubes 2 have converged reduced ends 3 to be fitted in holes 4 of tube plate 1.
EFFECT: reduced spacing between heat exchanger tubes, easier sealing.
6 cl, 8 dwg
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