Domestic bathroom hot water supply system and electric water heater

Abstract

The invention provides a domestic bathroom hot water supply system and an electric water heater. Through the combined application of valves, while safe use is ensured, the unification and coordinationof small water consumption, medium water consumption and large water consumption are achieved, and the economy and the quality of life are considered as a whole. Besides, a reasonable use mode can beset according to the air temperature characteristics of the seasons, and a leap in the quality of domestic hot water supply is completed.

Description

technical field [0001] The invention belongs to a control device specially suitable for heat exchange, which uses valves and pipelines to control the distribution of heat exchange media between different channels, and specifically relates to bathroom hot water supply technology and products in modern households. Background technique [0002] The seasons change throughout the year, and modern homes are inseparable from reliable and effective hot water supply solutions. According to different supply methods, hot water supply equipment mainly includes air energy water heaters, electric water heaters, solar water heaters and gas water heaters. Air energy water heaters have not yet been popularized, and the equipment is expensive; electric water heaters adopt direct electric heating schemes, which are dominant in areas where pipeline natural gas is not accessible. As far as our country is concerned, they are mainly distributed in vast rural areas. , the low water pressure at the e...

AI Technical Summary

Problems solved by technology

[0006] 1. When using hot water for washing hands, brushing teeth, etc. with a small amount of water (V<1 liter), since the pipeline needs to be emptied to store water before using hot water, it is uneconomical in terms of time and water consumption, and it is necessary to give up using hot water to reduce quality of life;

[0007] 2. When washing your face with hot water and other moderate water (1

[0008] 3. When hot water is used for showering and washing a large amount of water (V>5 liters), the waiting time required for emptying the pipeline to store water and the relative cost of water consumption become acceptable, and some users choose to store the emptied cold water as a Under the conditions of his use, he chooses to use hot water, and some users directly discard the emptied cold water, causing unnecessary waste; more importantly, the long waiting time reduces the experience of using hot water

The zero-cooled water heaters currently being promoted integrate the booster circulation pump with the gas water heater, but this does not change the problems of high price, frequent start-up and high energy consumption.

[0011] The domestic hot water circulation is realized by installing a circulating pump. Although instant hot water is guaranteed, the circulating pump is expensive, has high construction requirements and complicated pipelines. It is only applicable to special types of houses such as villas, and it is difficult for ordinary families to choose

In addition, domestic hot water circulation requires gas water heaters and circulation pumps to be turned on most of the time, which consumes electricity and gas, which runs counter to the concept of green energy saving in modern society; when family members go out, they generally do not choose to turn off the circulation pump equipment to maintain operation , intermittent open fire heating has great safety hazards; for stock home improvement without domestic hot water circulation, it is almost impossible to carry out renovation work to improve the quality of life

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