Water tank for double-capacity water heater

Abstract

The invention relates to a water tank for a double-capacity water heater. The water tank comprises a shell, a heat-insulating layer, phase-changing heat capacity materials, a first heat exchanger and a second heat exchanger, wherein the first and second heat exchangers are uniformly wrapped by the phase-changing heat capacity materials in the shell; the heat-insulating layer is uniformly distributed on the outer layer of the shell; the first heat exchanger is connected with a water path; the second heat exchanger is connected with a heat collector (such as an output pipeline of a solar heat collector or a heat pump heat collector) or an auxiliary heater is arranged in the water tank; or the second heat exchanger is connected with the water path and the first heat exchanger is connected with the heat collector; and the heat exchange is carried out by the two heat exchangers in the phase-changing heat capacity materials. The heat storage capacity of the water tank provided by the invention is above 4 times that of the water tank in the same volume; generally, the materials and the costs of the water tank are saved; convenience is brought to the mounting of solar equipment; an outer shell and an inner shell of the water tank for the double-capacity water heater both need not bear the pressure; and after hot water is received from the water path, the hot water is immediately drained after being boiled.

Description

technical field [0001] The invention relates to a water heater water tank, and also relates to a solar water tank, belonging to the technical field of solar heat utilization. Background technique [0002] Chinese patent CN201010033714.4 solar water heater water tank, including a thermal insulation box, a cylindrical enamel water tank is arranged inside the box, a row of heat pipe vacuum tubes are connected to the bottom wall of the water tank, and water inlet pipes and outlet pipes are respectively arranged at both ends of the bottom of the water tank. The water pipe, the water outlet of the water inlet pipe is lower than the water inlet of the water outlet pipe, and a tubular heat exchanger is arranged in the water tank. [0003] CN200710165465 solar water tank; comprising: a box body with a thermal insulation layer, water inlet and outlet pipes, low-radiation heat insulating glass covered thereon, and solar energy absorbing panels floating on the water surface. Among them...

AI Technical Summary

Problems solved by technology

[0007] The water tank requires good insulation effect and a large amount of water to be accommodated. This requires a large volume, thick insulation material, and high cost. The hot water contained is actually limited by the maximum temperature.

In order to ensure the supply of hot water, the capacity and volume of the water tank still need to be combined. The water tank of the prior art still needs a water tank with double-capacity heat storage, especially for water heater water tanks.

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