The utility model discloses an energy efficiency improving
system for a shallow buried
pipe heat exchanger. A closed or semi-closed heat
storage area unit is arranged in a surrounding mode through area heat insulation plates. The heat
storage area unit comprises a plurality of heat storage wells, a plurality of shallow water lifting wells, a plurality of
deep water lifting wells, a plurality of
solar water heaters, a heat storage water tank, a plurality of U-shaped vertical buried pipes and a ground source
heat pump machine room; the buried depth of the regional heat insulation plate is arranged in soil of an
earth crust constant temperature zone and penetrates through an
earth crust daily variable temperature zone and an
earth crust annual variable temperature zone from top to bottom, the buried depth H of the regional heat insulation plate is larger than or equal to H2 + 0.5-1 m, and H2 is the depth of the annual variable temperature zone; the heat storage well is of an inner and outer sleeve type hollow structure provided with a plurality of
horizontal branch pipes shaped like a cross or a Chinese character'jing ', and the
horizontal branch pipes are arranged in soil of a crustal annual variable temperature zone and a constant temperature zone. The buried depth H of the upper
horizontal branch pipe is greater than or equal to H1 + 0.5-1m, and the buried depth H of the lower horizontal
branch pipe is greater than or equal to H2 + 0.5-1m; h1 is the daily variable temperature zone depth, and H2 is the annual variable temperature zone depth.