An auxiliary device for a solar water heater

Abstract

The invention discloses an auxiliary device for a solar water heater. The auxiliary device for the solar water heater comprises a water tank of the solar water heater, and further comprises a water supply and drainage pipe, an emptier, a signal wire, a water mixing valve and an auxiliary device assembly, wherein the water supply and drainage pipe is connected with the water tank and is connected with the auxiliary device assembly through the water mixing valve; meanwhile, one end of the signal wire is connected with an emptying control device; the other end of the signal wire is connected withthe auxiliary device assembly; and a liquid level control device controls a water level in the water tank. The invention provides the auxiliary device for the solar water heater. The auxiliary devicefor the solar water heater is high in universality, compact in structure, convenient to install, simple to manufacture, capable of simultaneously solving three problems of water diversion, pressurization and emptying, energy-saving, and long in service life due to short water diversion and emptying time and small motor power during pressurization; by utilizing a button switch, a user can be reminded of timely turning off a power supply when the solar water heater is not in use, so that an energy-saving effect is achieved; and through forced emptying, water in the water supply and drainage pipe can be thoroughly emptied, so that an anti-freezing effect is remarkably improved in winter.

Description

technical field [0001] The invention relates to the technical field of solar water heaters, in particular to an auxiliary device for solar water heaters. Background technique [0002] Solar water heaters are widely used for energy saving, environmental protection and many other advantages. Most solar water heaters are not equipped with pipeline emptying facilities, so that in winter, most solar water heaters become decorations, and cause the upper and lower water pipes to bulge and freeze due to accumulated water. Even though some solar water heaters are equipped with emptying facilities, there are many cases that cannot meet the emptying conditions, such as U-shaped bends in the lower water pipes, or solar water heaters installed on low floors due to complex technology and high cost. Water heaters cannot be well promoted and applied due to reasons such as low water pressure due to low drop. Therefore, if the solar water heater can be used normally in winter, it is necessar...

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Problems solved by technology

[0005] In view of this, the present invention provides an auxiliary device for solar water heaters, which has strong versatility and is suitable for existing solar water heaters of various models and water discharge methods; it has a compact structure and is easy to install; it is simple to manufacture and the materials used are easily available in the market. Obtained, no special equipment is needed, and the three major problems of water diversion, pressurization, and emptying can be solved at the same time. Since the time of water diversion and emptying is very short, the power of the motor is very small during boosting, so it is very energy-saving, and the service life of the equipment is also long. Using the button switch can remind the user to turn off the power in time when not in use, so as to achieve energy saving effect. The forced emptying can completely drain the water in the upper and lower water pipes, and the antifreeze effect in winter is significantly enhanced.

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