The application provides a method for realizing cold-
heat balance combined supply by a water ring
heat pump, and comprises the following steps: S1,
system construction; S2, connecting a water ring
heat pump unit, a water-cooled centralized cold source, a hot water tank, a
refrigeration circulating pump group and a hot water
circulating pump group to an upper computer; S3, measuring the
water temperature in the hot water tank and the energy of the hot water side of the water ring
heat pump unit; measuring the
cooling capacity of the water-cooled centralized cold source and the energy of the
refrigeration side of the water ring heat pump unit; S4, according to the measured energy and temperature, the upper computer switches the
heat supply mode of the hot water side of the water ring heat pump unit to a circulating heating mode or an instant heating mode; and switches the
refrigeration side of the water ring heat pump unit to a summer mode or a winter mode. The method realizes
air conditioning refrigeration heat
recovery, realizes energy
cascade utilization, solves the cold-heat combined supply problem, directly produces refrigeration water while producing heat, can be connected to a refrigeration
water supply pipeline to eliminate cold load, realizes cold-
heat balance and cold-heat coupled operation by adopting cold-heat combined supply, and realizes
automatic control and energy-saving operation of the
system.