Control system of space heat pump water heater

Abstract

The invention relates to a control system of a space heat pump water heater. The control system comprises a control chip, a temperature sensor, a water level inductor, a relay drive assembly, a communication apparatus, a liquid injecting valve and a liquid reservoir, wherein the temperature sensor is used for determining the water temperature of a water tank of the space heat pump water heater; the water level inductor is used for detecting water amount in the water tank of the space heat pump water heater; the temperature sensor is used for detecting a temperature value of water which flows into a gas inlet of a compressor of the space heat pump water heater; when the temperature value exceeds a preset temperature value, a control chip controls the liquid injecting valve to open, so thatrefrigerating liquid of the liquid reservoir is injected into the compressor to reduce the temperature of the compressor; and the control chip controls the relay drive assembly to conduct according tothe water temperature and / or the water amount and / or a control instruction, so that the compressor and / or the condenser and / or an evaporator of the space heat pump water heater works for heating water inside the water tank of the space heat pump water heater, and therefore, intelligent level is improved, and heating is performed more reasonably.

Description

technical field [0001] The invention relates to the technical field of solar energy, in particular to a control system for a space energy heat pump water heater. Background technique [0002] At present, the water heater products generally sold in my country's water heater market are gas water heaters, electric water heaters and solar water heaters. Among them, gas water heaters have serious safety hazards in use, and poisoning incidents caused by the use of gas water heaters are reported from time to time every year; electric water heaters consume a large amount of expensive electricity, which is not conducive to the rational use of energy; conventional solar energy Water heaters can't produce hot water in rainy days, and can only rely on electric heating to make up for the lack of solar energy, so there is also a waste of energy, especially in some southern regions where there are more rainy days, it is not very economical to use such water heaters. Therefore, a new type ...

AI Technical Summary

Problems solved by technology

[0003] The development of heat pump water heaters has led to various control systems, but most of the control systems can only solve the problem of one-button switch or automatic power-off or automatic water replenishment. Their single function makes the degree of intelligence relatively low.

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