Electric water heater with heating water tank

Abstract

The invention relates to an electric water heater with a heating water tank, which consists of the heating water tank, a water storage tank, a water inlet pipe, a water outlet pipe, a water pump, a controller, a display, a shell and a bottom plate. The heating water tank is specially used for heating water which flows through the heating water tank; the heating water tank can be arranged in the water storage tank and can also be arranged outside the water storage tank; two paths of water enter the heating water tank; when the electric water heater is matched with the water pump to work, one water heater only needs one heating water tank and one group of electric heating pipes and the rapid heating and preheating are both carried out by the group of electric heating pipes; and when the water pump is not used, besides the heating water tank, more than one special electric heating pipes for preheating can be arranged.

Description

technical field [0001] The invention relates to an electric water heater. Background technique [0002] The existing storage type electric water heater, figure 1 , represented by A.O Smith and Haier, set up two electric heating tubes, upper and lower, in the water of the water tank to achieve alternate heating (Haier has simultaneous heating products), figure 2 It is the ZL200720061206.0 patent of Macro Company, using two electric heating pipes, one of which is set in the hot water outlet pipeline, and the other is specially used for preheating in the water tank; image 3 It is a structural diagram of a fast-heating water heater. An electric heating tube is installed in each of the two water tanks, and the total power is ≥5KW, and they are heated at the same time. figure 1 Change to a vertical structure; all of the above must be preheated for more than ten minutes or tens of minutes before hot water can be supplied, and there is no fast heating function; patent applicatio...

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Problems solved by technology

[0002] The existing storage type electric water heater, figure 1 , represented by A.O Smith and Haier, set up two electric heating tubes, upper and lower, in the water of the water tank to achieve alternate heating (Haier has simultaneous heating products), figure 2 It is the ZL200720061206.0 patent of Macro Company, using two electric heating pipes, one of which is set in the hot water outlet pipeline, and the other is specially used for preheating in the water tank; image 3 It is a structural diagram of a fast-heating water heater. An electric heating tube is installed in each of the two water tanks, and the total power is ≥5KW, and they are heated at the same time. figure 1 Change to a vertical structure; all of the above must be preheated for more than ten minutes or tens of minutes before hot water can be supplied, and there is no fast heating function; patent application numbers 200910135082.X; 200910166759.6; 200910209810.7; The structure of the exchange can significantly improve the performance of the water heater, but if the water preheating temperature in the water storage tank is set higher, the temperature in the heating water tank will be too high, and the over-temperature snap switch may trip, resulting in a power failure

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