Solar hot-water, air-conditioning and construction integrated system

Abstract

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.

Description

Solar water heating and air conditioning building integrated system technical field The invention relates to a device integrating hot water, air conditioner and building, in particular to a heating and cooling device that uses solar energy indirectly and directly and the integrated system of hot water, air conditioner and building formed therefrom. Background technique Solar energy is a widely distributed, abundant and clean renewable energy. At present, air source heat pumps, water source heat pumps, and ground source heat pumps that indirectly use solar energy convert solar energy (widely and uniformly low-temperature heat energy) stored in the air, rivers, lakes, and shallow strata into heat and cold energy; Water heaters convert sunlight energy into heat energy, and are widely used all over the world, and have good social and economic benefits. However, direct use of solar energy, due to the low density and intermittent nature of solar energy, makes the initial inves...

AI Technical Summary

Problems solved by technology

However, direct use of solar energy, due to the low density and intermittent nature of solar energy, makes the initial investment large, and it is difficult to realize all-weather hot water supply. Auxiliary energy is required, and oil or gas as auxiliary energy is polluted and inconvenient to use. Electric heaters are used. As an auxiliary, the bath water with a large heating capacity converts high-grade electric energy into low-grade low-temperature heat energy. The conversion procedure is unreasonable and the power consumption is huge.

Air source heat pumps that use solar energy indirectly, because the air temperature varies greatly with regions and seasons, the problems during use are: difficult to start in winter, low heat production efficiency; the required evaporator heat absorption area is large, and the air flow through it is large; Easy to frost, large heat loss

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