Picnic furnace

Abstract

The invention relates to a picnic furnace. The picnic furnace comprises a furnace body and a furnace pipe arranged in the furnace body in a sleeved mode, and a certain distance is reserved between the bottom of the furnace pipe and the bottom of the furnace body. The picnic furnace is characterized in that the bottom of the furnace pipe is sealed, an opening is formed in the top of the furnace pipe, the top of the furnace pipe is in sealed connection with the top of the furnace body, and an air flowing cavity is formed between the side face of the furnace pipe and the furnace body. A plurality of air inlet holes are formed in the circumferential wall of the lower portion of the furnace pipe, and a certain distance is kept between the heights of the air inlet holes and the bottom of the furnace pipe. An air blower is arranged at the bottom of the furnace body, and the air blower is used for blowing air in the air flowing cavity and enabling the air to enter the furnace pipe transversely. The picnic furnace has the advantage of being not prone to extinguishing, fuel burns sufficiently and fly ash can be prevented, and the picnic furnace is worthy of being popularized.

Description

technical field [0001] The invention relates to a picnic stove, in particular to a picnic stove with a lateral air intake and an inner and outer double-layer structure. Background technique [0002] Picnic stoves are common cooking utensils for people to go out for picnics. In recent years, they have become a travel equipment that many consumers are keen to buy. Small, lightweight, safe and environmentally friendly picnic stoves have become a hot spot for businesses to develop and research. At present, compared with new stoves that rely on solar heating, picnic stoves that use open flames for cooking are still the most common choice for the public because of their simple structure and fast heating. The Chinese utility model patent "One Ignition Picnic Stove" (authorized announcement number CN2126385U) discloses a picnic stove, which includes a furnace shell, and a heat preservation sleeve made of refractory material is set inside the furnace shell, and a ignited coal is plac...

AI Technical Summary

Problems solved by technology

This design improves the combustion efficiency of fuel to a certain extent, but it also has the following defects: 1. A grate is installed at the bottom of the furnace, which makes it difficult to preserve the primer, and frequent flameouts occur during use; A certain amount of ashes will accumulate at the bottom, and the air flow poured from the bottom is likely to cause fly ash; 3. Since the size of the air flow depends on the natural wind, and the strength of the natural wind is unstable, it is not conducive to maintaining efficient combustion of fuel at all times efficiency

In addition, since picnic stoves are generally used in open outdoors, the heat exchange between the stove and the surrounding environment also consumes a lot of combustion heat. How to reduce the heat loss of picnic stoves is also an urgent problem to be solved

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