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Method for controlling cold water supply of solar water heater and control system

A technology of solar water heaters and control methods, which is applied to heating systems, solar thermal devices, program control in sequence/logic controllers, etc., can solve the problems of low solar energy use efficiency and slow heating speed, and achieve simple structure and high efficiency. Heating speed, energy saving effect

Inactive Publication Date: 2009-09-02
GUANGDONG HONEE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention overcomes the deficiencies of the above-mentioned technologies, and provides a solar water heater supplementary cold water control method and control system to solve the problems of slow water heating and low solar energy use efficiency

Method used

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  • Method for controlling cold water supply of solar water heater and control system
  • Method for controlling cold water supply of solar water heater and control system

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Embodiment Construction

[0033] A further detailed description will be made below in conjunction with the accompanying drawings and embodiments of the present invention:

[0034] Such as figure 1 Shown, a kind of supplementary cold water control method of solar water heater, it can select between two supplementary cold water modes, and it comprises the following steps:

[0035] S1. Detect the water level in the water tank;

[0036] S2. Determine whether the water level in the water tank is less than the lower limit of the water level, that is, protect the water level to avoid water shortage in the water tank. If yes, add cold water until the water level reaches the lower limit of the water level, otherwise continue to step S3, the lower limit of the water level Be 10~15% of water tank capacity, adopt 10% of water tank capacity in the present embodiment;

[0037] S3. Judging whether to execute the first cold water supplement mode or the second cold water supplement mode according to the clock, if it ...

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Abstract

The invention discloses a method for controlling cold water supply of a solar water heater and a control system. The control method adopts two modes of cold water supply to supply cold water, the first mode of cold water supply is a water supply control method that an upper limit value of water level is set to be relatively higher in daytime with sufficient light; and the second mode of cold water supply is a water supply control method that an upper limit value of water level is set to be relatively lower at night with weak light. Through the method for controlling cold water supply, the method and the system have the advantages of sufficiently using solar energy, improving utilization rate of solar energy, improving heating speed, saving energy and the like.

Description

[technical field] [0001] The invention relates to a solar water heater, in particular to a control method and control system for supplementing cooling water of the solar water heater. [Background technique] [0002] With the improvement of society's awareness of energy saving and environmental protection, more and more solar water heaters are pouring into people's daily life. At present, the cold water replenishment control system of the solar water heater includes a water supply solenoid valve drive module for controlling the switch of the water supply solenoid valve, a water tank water temperature detection module, a water tank water level detection module, and a cold water replenishment control module. When the power is turned on, the cold water replenishment control of the water tank includes the following step: [0003] 1. Detect the water level in the water tank and judge whether the water level in the water tank is lower than the lower limit of the water level, if ye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/40F24J2/46G05B19/04G05B19/418
CPCY02B10/20F24D19/1075F24D19/1057
Inventor 吴勇章
Owner GUANGDONG HONEE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH
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