A gas stove that improves energy efficiency

Abstract

The invention relates to a gas-stove capable of improving energy efficiency. The gas-stove comprises a cyclone gas mixing furnace end, a combustion gas preheating device, and an air preheating device. The cyclone gas mixing furnace end is structured as that: a plurality of injectors are combined in a gas mixing chamber along a circumcircle. A fire cover is composed of an inner fire cover and an outer fire cover. Forward flow slot-type fire holes are respectively punched on the inner fire cover and the outer fire cover. The flow discharging direction of the fire holes and a forward flow direction of furnace end mixed gas form an elevation angle of 50-60 DEG. The combustion gas preheating device is arranged behind a combustion gas valve. A gas inlet end of the combustion gas preheating device is connected with the combustion gas valve. A gas outlet of the combustion gas preheating device is connected with a plurality of combustion gas nozzles below the combustion gas preheating device. Each combustion gas nozzle is connected with an injector on the furnace end through a corresponding injecting pipe. The air preheating device comprises a host air inlet and liquid bearing disks provided on the stove surface. An air preheating annular gap is preserved on the liquid bearing disks. The liquid bearing disks are connected with the injectors. The thermal efficiency of the gas-stove provided by the invention reaches 70%, which is higher by 15 percentage points than a current national gas-stove standard thermal efficiency technological index 55%.

Description

Technical field: [0001] The invention belongs to the field of design and manufacture of urban gas stoves, and relates to a gas stove capable of improving energy efficiency. Background technique: [0002] At present, there are many types of gas burning appliances, most of which are "atmospheric" combustion. Atmospheric gas burners are gas that inhales a small amount of air at the entrance of the injection pipe (primary air coefficient α = about 0.6), and the fire hole is again large. Part of the combustion air (secondary air, the excess air coefficient at this time α = about 1.3) forms a Bunsen flame device with inner and outer flames. Reducing the heat loss of gas cooker flue gas and increasing the contact area between the high-temperature flame and the pot are the main means to improve the effective heat efficiency of the cooker and reduce the heat loss. [0003] Most of the traditional civilian gas stoves directly introduce the normal temperature gas into the burner for c...

AI Technical Summary

Problems solved by technology

However, due to the structural characteristics of civil gas cookers and the restrictions on the safety of use, although domestic researchers have proposed a large number of structural design ideas and practices in terms of energy saving of gas cookers, there has been no integration of various efficiency improvement measures into a civil gas cooker. The structural design of the stove has been put into practice. Therefore, the energy efficiency of gas stoves in my country cannot be greatly improved so far.

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