A gas stove waste heat recovery system

Abstract

The invention provides a waste heat recovering system of a gas stove. The waste heat recovering system of the gas stove comprises a combustor assembly, a heat exchanger assembly, a water storing tank and a connecting control pipeline assembly, wherein the heat exchanger assembly comprises a first heat exchanger and a second heat exchanger; the upstream end of a bypass pipeline of the first heat exchanger is connected to an upstream liquid pipeline of the first heat exchanger to form a three-way pipeline which is controlled by a first three-way control valve; a downstream liquid pipeline of the second heat exchanger communicates with a second liquid loop pipe; a first liquid loop pipe and the downstream end of the second liquid loop pipe communicate with a head liquid loop pipe, and thus heat exchanging medium liquid subjected to two times of heat exchanging can flow back to a combustor to be subjected to heat recovery again. According to the waste heat recovering system of the gas stove, the heat recovery can be adjusted at a plurality of levels according to the actual demand, thus the energy saving performance of the gas stove in use can be improved, and people can directly benefit from gas conservation, and moreover, the heat recovery has a great realistic significance on effective utilizing of a gas resource as well as protecting of the environment resource.

Description

technical field [0001] The invention relates to a gas stove waste heat recovery system, which belongs to the technical field of kitchen utensils. Background technique [0002] According to statistics, the existing gas stoves in the catering industry have serious heat loss and empty burning phenomenon is common. The average thermal efficiency is only 20%, and the heat loss is as high as 80%, resulting in great energy waste. The so-called thermal efficiency of the gas stove, in layman's terms, is the effective utilization rate of the gas heat energy during the use of the gas stove. As can be seen from the thermal efficiency of gas cookers, household gas cookers generally have a low utilization rate of gas heat energy, and about 40% to 50% of gas heat energy is wasted in use. The combustion method of the commercial gas stoves currently used in the market still adopts the traditional positive pressure open combustion method. During the gas combustion process, the combustion fla...

AI Technical Summary

Problems solved by technology

It utilizes the heat exchange between flue gas and air to utilize the heat into the intake air to heat the intake air and improve the thermal efficiency. However, this kind of gas heat exchange has high requirements on the heat exchanger, and the actual heat exchange effect is not that good. not ideal

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