The invention provides a hot-water, air-conditioning and construction integrated
system which indirectly and directly utilizes
solar energy. The
system comprises a
solar heat collection unit [1], a fan coil [2], a coil
throttle valve [3], a cooling
electromagnetic valve [4], a
cooling tower [5], a
chilled water output
electromagnetic valve [6], a
chilled water output pump [7], a
chilled water reservoir [8], a chilled water input pump [9], a chilled water input
electromagnetic valve [10], a chilled water input
throttle valve [11], a water-cooled cold
water chiller [12], a hot-water
throttle valve [13], a hot water pump [14], a hot-
water reservoir [15], a
spray nozzle [16], a unit pump [17], a unit throttle valve [18] and the like. The
system realizes integration of solar hot-water, air-conditioning and construction, and supplies all-weather hot water and chilled water (summer). According to
solar altitude, weather conditions and user requirements, the best scheme can be selected from a plurality of configurations to achieve substantially
energy conservation: in summer, combined supply of hot-water and air-conditioning can be realized to avoid heat
pollution and cold consumption,
refrigeration and
cold storage can be implemented at the lowest temperature so as to improve efficiency, perform
peak load shifting, save
electricity fee and relieve power supply shortage; and in winter, combined supply of hot-water and warming can be realized. By adopting a water-circulation heat-and-coldness-storage heat-and-coldness-supply system, the heat collecting area and the heat exchange cycle are reduced, and cost is reduced; and the integrated system of the invention has high
solar heat conversion efficiency, high air heat converting energy conversion, and primary investment, operation cost and
electricity conservation which are superior to those of the conventional solar hot-water air-conditioning system with the same volume.