Thermostatic water mixing control method for solar water heater

Abstract

The invention discloses a thermostatic water mixing control method for a solar water heater. The thermostatic water mixing control method comprises the following steps: presetting normal thresholds of a water temperature and a water flow of a water mixing nozzle in a solar water heater; acquiring the water temperature and the water flow of the water mixing nozzle in the solar water heater in real time; comparing the acquired water temperature of the water mixing nozzle with the normal threshold, if the water temperature is too high, increasing the opening degree of a cold water valve until the water temperature is dropped to a preset value; if the water temperature is too low, increasing the opening degree of a hot water valve until the water temperature rises to a preset value; if the water flow is too strong, decreasing the opening degrees of the cold water valve and the hot water valve simultaneously according to a ratio of an actual water flow to the preset water flow until the water flow reaches a preset value; if the water flow is too weak, increasing the opening degrees of the cold water valve and the hot water valve simultaneously according to the ratio of the actual water flow to the preset water flow until the water flow reaches a preset value; performing the steps until both the water temperature and the water flow of the water mixing nozzle reach the preset values.

Description

technical field [0001] The invention relates to a constant temperature water mixing method, in particular to a constant temperature water mixing control method for a solar water heater, which belongs to the field of constant temperature water mixing control. Background technique [0002] At present, in the context of the country's vigorous development of new energy, the development and utilization of water energy, solar energy, and biomass energy have received special attention. In these fields, solar water heater is a major industry in the application of solar energy achievements. It has quickly won the favor of consumers due to its advantages of environmental protection, safety, energy saving, and sanitation. [0003] Among the many parts of solar water heaters, there is one that users are most often in contact with, and that is the mixing valve-a valve used in the bathing process. Some of its defects are also the most directly experienced by users: ordinary mechanical mi...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a constant temperature mixed water control method for solar water heaters in view of the deficiency of the background technology, which solves the problems of hot and cold, large and small water outlets, and further realizes the function of constant temperature mixed water