Water tank for solar water heater

Abstract

The invention relates to a water tank for a solar water heater, which comprises a heat insulation tank body, a cylindrical enamel water tank arranged in the tank body, a row of heat pipe evacuated tubes connected with the wall surface of the bottom of the water tank, a water inlet pipe and a water outlet pipe respectively arranged on both ends of the bottom of the water tank, wherein the water outlet of the water inlet pipe is lower than the water inlet of the water outlet pipe; the water tank is characterized in that: a pipe heat exchanger is arranged in the water tank, one end of the heat exchanger is the air inlet pipe and the other end is the air outlet pipe, the inlet of the air inlet pipe is connected with an air blower, the outlet of the air outlet pipe is communicated with atmosphere; a temperature control system for monitoring temperature is also arranged in the water tank and is connected with the air blower; the heat pipe evacuated tubes are obliquely connected with the bottom of the water tank. When the temperature of the interior of the water tank is higher than the alarming threshold, the air blower is started to utilize air to dissipate heat of the water tank through the heat exchanger so as to reduce the temperature of the water in the water tank and improve the service life of the enamel water tank. The water tank for the solar water heater is widely applicable to solar water heater with pressure-bearing heat pipe evacuated tubes.

Description

technical field [0001] The invention relates to a water heater water tank, in particular to a closed pressurized solar water heater water tank. Background technique [0002] At present, in the existing closed pressurized solar water heater, the water tank is connected with the solar heat pipe vacuum tube through heat exchange. Because the water tank is not directly connected with the solar heat pipe vacuum tube, it can operate under pressure, so that it is convenient for users to adjust the water flow and improve water comfort. Such as figure 1 As shown, the traditional closed pressurized solar water heater water tank includes a thermal insulation box 1, and a cylindrical enamel water tank 2 is arranged inside the box body 1. The bottom wall of the water tank 2 is provided with a row of heat pipe vacuum tubes 3 for absorbing solar energy and converting it into heat energy. In the several dead pipes 4 corresponding to the heat pipe type vacuum tubes 3 arranged on the botto...

AI Technical Summary

Problems solved by technology

Since the service life of the enamel material is directly related to temperature and pressure, the high temperature and high pressure working environment can easily cause the water tank 2 to be corroded, resulting in the inability of the water tank 2 to operate stably for a long time, shortening the service life of the closed pressurized solar water heater tank

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