The invention relates to a
high energy efficiency dry shell and tube condensing
heat exchanger with tube for
subcooling. The
high energy efficiency dry shell and tube condensing
heat exchanger with tube for
subcooling comprises a shell group and a tube core group for
subcooling, wherein a heat exchange tube core group is fixedly disposed in the shell group, expanded joints at the two ends of the heat exchange tube core group are fixed on the end plates, a dispersion plate is disposed above the heat exchange tube core group, a
refrigerant inlet is formed at the top end of the shell group, a
refrigerant outlet is formed at the bottom end of the shell group, an end cover is arranged on one side of the shell group, a secondary
refrigerant inlet is formed at the lower portion of the shell group, a secondary refrigerant outlet is formed at the upper portion of the shell group, an end cover without splitter plates is installed on the other side of the shell group, and the tube core group for subcooling is fixedly disposed in the shell group and under the heat exchange tube core group. The
high energy efficiency dry shell and tube condensing
heat exchanger with tube for subcooling has the advantages that because the tube core group for subcooling is installed in the heat exchanger, the degree of subcooling of refrigerants is improved, condensing temperature is decreased, the efficiency of condensing heat exchange is improved, the load of the secondary refrigerants is reduced, and negative factors of overall cyclicity is reduced.