Hot water system and water heating method

Abstract

The invention discloses a hot water system and a water heating method, and relates to the field of hot water projects. The problem that the water outlet temperature of a water storage tank is not stable when a user uses water continuously is solved. The hot water system comprises a first hot water device, a second hot water device and a water storage device, wherein the water outlet end of the first hot water device can be communicated with the second hot water device, the water storage device can be communicated with the second hot water device and the first hot water device, and the water storage device is further provided with the water outlet end and the water inlet end. The water heating method comprises the following steps that the first hot water device receives water input from the water storage device; the second hot water device receives water heated by the first hot water device; the temperature of water entering the second hot water device is judged; when the temperature of the water entering the second hot water device does not meet the first preset condition, the second hot water device is turned on, and the water heated through the second hot water device is conveyed to the water storage device. According to the hot water system and the water heating method, the stability of the water outlet temperature of the water storage tank is improved.

Description

technical field [0001] The invention relates to the field of hot water engineering, in particular to a hot water system and a water heating method. Background technique [0002] Heat pump technology is a new energy technology that has attracted much attention in the world in recent years. It is a device that can obtain low-grade heat energy from air, water or soil in nature, and provide high-grade heat energy that can be used by people through electric power. The outstanding feature of the heat pump is its high efficiency and remarkable energy-saving effect. The average consumption of 1W of electric energy can generate 3-4W of heat energy, and it does not have any waste gas and sewage discharge, which is conducive to ecological balance. Due to its above-mentioned energy-saving, high-efficiency, green and environmental protection characteristics, it has been slowly applied in various fields. [0003] At present, in hotels, restaurants, schools, factories, bathing centers, o...

AI Technical Summary

Problems solved by technology

However, just because of the large water consumption of the above-mentioned places, there may be a situation where the user’s water consumption is particularly large in a short period of time. However, the tonnage cannot meet the situation of a large amount of water in a short period of time. The heat pump has no time to heat the large amount of newly imported cold water. When it reaches a certain level, the temperature of the water in the water storage tank first fluctuates greatly and then drops rapidly. The outlet water temperature cannot meet the user's requirements for water temperature

If you blindly increase the maximum power of the heat pump and the tonnage of the water storage tank just for the sake of a large amount of water in a short period of time, although the above-mentioned problem of water temperature fluctuations can be solved, it is obviously uneconomical. A heat pump with a higher power and a water storage tank with a larger tonnage will greatly increase the cost of the equipment, and under normal water conditions, a heat pump with a higher power and a water storage tank with a larger tonnage have no advantage, but will increase the operating time. the cost of

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