Energy-saving water supply system for a motor home

Abstract

The application relates to the technical field of caravans, and discloses an energy-saving water supply system for a caravan, which comprises a heat exchanger, a closed heat preservation hot water tank and an open clean water tank connected with a secondary water outlet of the heat exchanger, and a water mixing valve for a water using unit communicated with the closed heat preservation hot water tank and the open clean water tank; a primary water outlet of the closed heat preservation hot water tank is connected with a secondary water inlet of the heat exchanger through a heating pump; the secondary water outlet of the heat exchanger is connected with a primary backwater inlet of the closed heat preservation hot water tank and a water inlet of the open clean water tank through valves respectively; a water outlet of the open clean water tank is connected with a secondary water inlet of the closed heat preservation hot water tank through a cold water pump; the hot water flow direction of the secondary water outlet of the heat exchanger is controlled through the valves, then the closed heat preservation hot water tank and the open clean water tank are arranged, so that the heat in the heat exchanger is maximally utilized, the use demand under different environments is met, the number of water pumps is reduced, and the use cost is effectively reduced.

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