Safe constant-temperature solar electric boosting heater

Abstract

The invention discloses a safe constant-temperature solar electric boosting heater. Because a water temperature control system is added to the heater, when a manually-operated temperature controller or an automatic temperature controller jumps, an electric heating pipe can not be started again or used. When the water temperature ranges from 80DEG C to 100DEG C, safe use of the heater can be guaranteed by the automatic water temperature controller to prevent dry heating. When emergency situations happen, heater heating can be stopped manually to avoid electricity utilization dangers. Because aluminum is applied outside the electric heating pipe in a pressure casting mode and the electric heating pipe is coated with a multi-layer teflon structure, the electricity leakage possibility of the electric heater is greatly reduced, and electricity leakage potential hazards of the electric heating pipe are reduced.

Description

technical field [0001] The invention relates to a safe and constant temperature solar electric auxiliary heating heater. Background technique [0002] The heaters currently on the market are only single heating tubes or anti-dry heating tubes, with heating tubes, flanges or thermostats and temperature fuses; the surface of the current heating tubes is composed of stainless steel tubes, which are directly heated when in use In water, scale often occurs on the surface of the tube, which leads to anoxic crevice corrosion, which leads to leakage and failure of the heating tube; and the current water temperature control is to add a structural part to the inner tank of the solar water heater for monitoring, with complex structure and circuit ; And the precious metals used in the electric heating pipe materials have high cost. Contents of the invention [0003] The purpose of the present invention is to overcome the above deficiencies, provide a safe and constant temperature sol...

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Problems solved by technology

[0002] The heaters currently on the market are only single heating tubes or anti-dry heating tubes, with heating tubes, flanges or thermostats and temperature fuses; the surface of the current heating tubes is composed of stainless steel tubes, which are directly heated when in use In water, scale often occurs on the surface of the tube, which leads to anoxic crevice corrosion, which leads to leakage and failure of the heating tube; and the current water temperature control is to add a structural part to the inner tank of the solar water heater for monitoring, with complex structure and circuit ; and the precious metals used in the electric heating tube materials, the cost is high

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