Water circulation module and water heating system adopting water circulation module

Abstract

The invention provides a water circulation module suitable for being installed in a water heating system. The water heating system comprises a water heating device, a cold water pipeline and a hot water pipeline, wherein the cold water pipeline communicates with a water inlet of the water heating device, and the hot water pipeline communicates with a water outlet of the water heating device. The water circulation module is arranged outside the water heating device and is connected between the hot water pipeline and the cold water pipeline so that the water circulation module can selectively communicate with the hot water pipeline and the cold water pipeline, accordingly, a circulation water path is established between the water circulation module and the water heating device, and then cold water in the circulation water path is heated. The water circulation module comprises a main water way, a temperature detection device and a water pump, wherein the temperature detection device is connected with the main water way in a related manner so as to detect the temperature of water in the main water way, and the water pump is arranged in the main water way. The water pump can be controlled to be started or stopped according to the water temperature detected by the temperature detection device. Through the structure, pre-heat water circulation can be established in a water utilization pipeline where the water circulation module is located through the water circulation module, and independent control over preheat water circulation can be achieved.

Description

technical field [0001] The invention relates to the field of hot water systems, in particular to a water circulation module suitable for domestic hot water systems. Background technique [0002] When using domestic hot water equipment, such as a gas water heater, it often takes a long time to wait for hot water to flow out when the hot water tap is turned on. This is because, on the one hand, there is a large amount of cold water in the water pipes inside and outside the equipment, which must be drained before hot water can come out; on the other hand, the gas water heater does not ignite immediately when it is started. Heating, usually for safety reasons, the fan inside the gas water heater must be cleaned before the combustion chamber and exhaust pipe, to ensure that the combustion chamber and exhaust pipe are replaced by fresh air before ignition can be made, and it will also be released during this time Plenty of cold water. Obviously, a large amount of cold water disc...

AI Technical Summary

Problems solved by technology

However, existing users often have more than two water pipelines in their homes, such as two toilets, and the multiple water pipelines are supplied with hot water by the same hot water equipment, and the multiple water pipelines pass through Arranged in parallel, obviously, the above preheating method cannot achieve separate control of each preheating water circulation

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