Water outlet temperature compensation method for water heater, and water heater

Abstract

The invention discloses a water outlet temperature compensation method for a water heater, and the water heater. The water outlet temperature compensation method for the water heater comprises the following steps: S1, required temperature and water delivery change influence parameters are obtained; S2, a preheating temperature and preheating time are calculated according to the required temperature and the water delivery change influence parameters; and S3, the water outlet temperature is controlled according to the preheating temperature and the preheating time. According to the required temperature and the water delivery temperature change influence parameters, the proper preheating temperature and preheating time are calculated, and then the water outlet temperature is controlled according to the preheating temperature and the preheating time, so that the water outlet temperature of the water heater tends to the preheating temperature and lasts for the preheating time during initialwater supply, the preheating temperature is higher than the required temperature, so that hot water output by the water heater carries more heat so as to compensate part of heat absorbed by the pipeline, the temperature of the pipeline can be rapidly increased, the time for enabling the water temperature to meet the required temperature is shortened, and realization for the effect of rapidly reducing the temperature difference between the water temperature and the required temperature is facilitated.

Description

technical field [0001] The invention relates to the field of water heaters, in particular to a water heater outlet temperature compensation method and the water heater. Background technique [0002] With the economic growth and the improvement of living standards, water heaters have become routine equipment in every family. Existing water heaters can adjust according to the outlet water temperature by detecting the outlet water temperature of the water outlet port, so that the outlet water temperature meets the user's set temperature. Need temperature, more convenient to use. [0003] However, refer to figure 1 and figure 2 , due to the long pipeline between the water heater and the water point or the low ambient temperature around the pipeline, when the water is first used, part of the heat of the hot water is used to heat the pipeline, so that the temperature of the water at the water point is different from that of the outlet water. The large difference in temperature...

AI Technical Summary

Problems solved by technology

However, there is a feedback adjustment process in this method. Although it can shorten the time required for the water temperature to rise, it is still difficult to quickly eliminate the temperature difference between the outlet water temperature and the water temperature in a short period of time, and it may cause the water temperature to rise again. If the problem of overheating occurs, multiple feedback adjustments are required to use the water temperature to meet the set outlet water temperature, resulting in troublesome control and use and increased material costs

Images