Combined electric water heater with large water yield

Abstract

The invention relates to a combined electric water heater with large water yield. The combined electric water heater comprises a water storage type water heater set, an instant water heater and a temperature limiting water mixing device, wherein the water storage type water heater set comprises one water storage type water heater or more than two water storage type water heaters with cold water inlets and hot water outlets connected in series; the first set of cold water inlets of the water storage type water heater set communicate with a first cold water inlet pipe; the first set of hot wateroutlets of the water storage type water heater set communicate with a first hot water inlet of the temperature limiting water mixing device; a third cold water inlet of the temperature limiting watermixing device communicates with a second cold water inlet pipe; a first mixed water outlet of the temperature limiting water mixing device communicates with a hot water outlet pipe; and the instant water heater is arranged on the hot water outlet pipe or the second cold water inlet pipe. The combined electric water heater has the advantages of being small in size, adjustable in appearance, largein hot water yield, low in heating power consumption, low in power consumption, capable of saving energy and electricity and more suitable for meeting the use requirements of common resident families.

Description

technical field [0001] The invention belongs to the field of water heaters, and in particular relates to a combined electric water heater with the function of large water output. Background technique [0002] With the development of the economy, household electric water heaters have become very popular in China. According to statistics, the annual sales of household electric water heaters in my country reached more than 20 million units in 2017. Existing household electric water heaters mainly include water storage type water heaters, instant electric water heaters and water storage instant dual-mode electric water heaters. [0003] (1) The problems of storage water heaters are as follows: [0004] (1) The fuselage is bulky, takes up a lot of space in the bathroom, and is not beautiful. [0005] (2) Because of its large size, it needs to be installed on the wall, and there is a risk of falling and hurting people after hanging on the wall. [0006] (3) The water inlet and ...

AI Technical Summary

Problems solved by technology

[0004] (1) The body is bulky, takes up a lot of space in the bathroom, and is not beautiful

[0005] (2) Because of its large size, it needs to be installed on the wall, and there is a risk of falling and hurting people after hanging on the wall

[0006] (3) The water inlet and outlet connection pipes are exposed, which is not beautiful

[0007] (4) The inner tank has a large volume and a large water storage capacity, usually greater than 50 liters. Because of the large water storage, the heating speed is slow, and the user waits for a long time

[0008] (5) The standby temperature is high, usually 40-75 degrees, resulting in a large temperature difference between the water in the inner tank and the indoor temperature during standby, fast heat preservation and heat dissipation, and large power consumption. Repeated heating is required to maintain the predetermined standby temperature, resulting in power consumption volume increase

[0013] (1) The volume of conventional water storage and instant dual-mode water heaters is smaller than that of traditional storage water heaters and larger than that of instant water heaters. It still needs to be installed on the wall and cannot be placed directly in a cabinet or bathroom cabinet. It still needs to occupy a certain amount of space. The bathroom space is not beautiful

[0014] (2) The connecting pipes of the water inlet and outlet pipes are still exposed, which is not beautiful

[0015] (3) When the water storage liner is small, the overall hot water output is usually relatively small, and the user experience is not good

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