Preheating module and gas-fired water heating equipment system with same

Abstract

The invention provides a preheating module and a gas-fired water heating equipment system with the same. The preheating module can be applied to gas-fired water heating equipment to preheat cold water in internal and external circulation pipelines before formal use of the gas-fired water heating equipment. The preheating module comprises a water inlet pipe section, a water return pipe section and a water pump, the water inlet pipe section can be connected with a water inlet pipe of the gas-fired water heating equipment, the water return pipe section is communicated with the water inlet pipe section, and the water pump is arranged on either the water inlet pipe section or the water return pipe section. Since the preheating module is used with the gas-fired water heating equipment, instant heating of domestic water can be realized, and accordingly user experience is improved. Furthermore, since the preheating module is independent from the gas-fired water heating equipment, both the gas-fired water heating equipment and the preheating module can be independently sold by a manufacturer, or the manufacturer can sell a system consisting of the gas-fired water heating equipment and the preheating module, and thus demands of different users can be met. In addition, when domestic hot water is required and the temperature of fed cold water is high, the preheating module is capable of increasing cold water flow rate by the aid of the water pump, and accordingly influences on utilization due to overhigh water outlet temperature of the gas-fired water heating equipment are avoided.

Description

technical field [0001] The invention relates to the field of household gas equipment, in particular to a preheating module suitable for gas hot water equipment. Background technique [0002] Gas hot water equipment usually includes gas water heaters and gas boilers. Taking a gas water heater as an example, a burner, a heat exchanger, and a pipeline system are usually arranged in it. The burner often includes several fire baffles arranged side by side, and each fire baffle has a gas-air mixing channel in which the gas and air can be mixed and delivered to the fire hole at the top of the fire baffle to burn in the combustion chamber and generate Heat, the generated heat can heat the water in the heat exchanger, and then the heated water can be exported through the pipeline system for the supply of domestic hot water for drinking and bathing. In addition to being used to provide domestic hot water, the gas boiler can also be connected to a radiator installed indoors to provid...

AI Technical Summary

Problems solved by technology

However, compared with ordinary gas hot water equipment, these additional components for preheating will undoubtedly increase the manufacturing cost of the entire equipment and increase the selling price accordingly

However, not all users will need the warm-up function

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