Fuel pump complementing heating and hot water supplying system and control method

Abstract

The invention relates to a fuel pump complementing heating and hot water supplying system and a control method, and belongs to the technical field of water heaters. The system comprises a fuel gas heating stove and a water tank, wherein the fuel gas heating stove is provided with a heat outlet, a heat returning port, a heating outlet and a heating returning port; an upper heat exchanger and a lower heat exchanger are arranged in the water tank, and the water tank is provided with a heat pump heating system; the heat outlet of the fuel gas heating furnace communicates with the heat returning port through a heater and the lower heat exchanger in the water tank in a sequence so as to form a heating circulating pipeline; the heating outlet of the fuel gas heating stove communicates with the heating returning port through the upper heat exchanger of the water tank so as to form a heating circulating pipeline; an electric three-way valve is mounted between a heating heat exchanger and the lower heat exchanger; a first port and a second port of the electric three-way valve are correspondingly connected to the heating heat exchanger and the lower heat exchanger; and a third port of the electric three-way valve is connected to a connecting pipeline of the heating returning port through the lower heat exchanger. According to the system, the fuel gas heating stove and a heat pump water heater are organically combined and complement each other, so that the demand on efficient, energy-saving, stable and continuous hot water supplying and heating can be met.

Description

technical field [0001] The invention relates to a heating and hot water supply system, in particular to a fuel pump complementary heating and hot water supply system, and also relates to a corresponding control method, which belongs to the technical field of water heaters. Background technique [0002] In recent years, the demand for hot water and heating in households has been increasing day by day, and the requirements have become higher and higher. Gas wall-mounted heating stoves have gradually become standard products for domestic households. [0003] However, although the gas wall-hung boiler has a large power, it can meet the heating needs of multiple rooms at the same time. When used with a water tank, it can also provide a large flow of constant temperature hot water for family bathing and kitchen use. However, the existing gas wall-hung boiler heats domestic heat during the heating process Water will interrupt heating, so heating and hot water cannot be guaranteed a...

AI Technical Summary

Problems solved by technology

[0005] At present, people have realized that single-energy domestic heating and hot water supply systems cannot meet the needs of reliability, high efficiency and energy saving, so they have begun to focus on research on multi-energy combination domestic heating and hot water supply systems

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