CN201209884Y - Biomass cooking furnace with firepower adjustable - Google Patents

Abstract

The utility model relates to a biomass cooking stove with adjustable firepower, which is composed of a furnace body, a gas-making chamber and a burner installed inside the furnace body, wherein: a primary air pipeline is arranged at the lower part of the grate in the furnace body, and a secondary The secondary air inlet of the air distribution chamber is connected with a secondary air pipeline. The primary air pipeline and the secondary air pipeline extend out of the furnace body and are connected to a general air inlet pipe. The primary air inlet pipe located outside the furnace body , the secondary air inlet pipe, and the main air inlet pipe are all set in a shell that is fixed outside the furnace body. A primary air flow regulating valve is set on the primary air pipeline, and a secondary air flow rate is set on the secondary air pipeline. regulator valve. The structure design of the utility model is scientific and reasonable. By setting the combustion-supporting gas distribution device composed of the primary air pipeline and the secondary air pipeline, the adjustment of the firepower of the biomass stove is realized. requirements, while also helping to save fuel.

Description

Adjustable fire power biomass cooking stove

technical field

The utility model relates to a biomass stove, in particular to a biomass cooking stove with adjustable firepower.

Background technique

Biomass, as the only renewable carbon source, has attracted more and more attention in today's increasingly tense energy environment. After years of exploration and research, the development and utilization of biomass, including biomass carbonization and gasification technology, has achieved considerable results, and has gradually replaced natural gas, coal gas and other energy sources and has been widely used. Household biomass stoves have been applied in rural areas. They can conveniently use crop waste, such as straw, firewood, chaff, etc., to realize the biomass gasification process in the cooking stove, and the generated biomass gas can be used for household Provide energy for cooking, boiling water, heating, etc. Not only can the thermal energy conversion rate of biomass combustion be improved, but it is also more environmentally friendly.

Household biomass cooking stoves are composed of a furnace body, a cylindrical gas chamber built in the furnace body and a cone-shaped burner. The primary air (that is, natural wind) enters the gas-making chamber from the natural air valve at the bottom of the furnace body for biomass gas generation, and the secondary air enters from the secondary air distribution chamber set between the furnace body and the burner for biomass gas combustion. Most of the current biomass cooking stoves have the functions of cooking, bathing, and boiling water, and different functions require different firepower to complete. You need "slow fire". However, the existing biomass cooking stoves lack the function of firepower adjustment during use, causing the stoves to be unable to adapt to the diverse needs of cooking. Especially when the heat of household biomass cooking stoves is limited, the combustion-supporting gas supplied to the gas-making chamber and the burner is often insufficient, resulting in too low firepower, which affects the normal use of cooking; and if the firepower continues to be too high, it will cause fuel waste.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the prior art and provide a firepower adjustable biomass cooking stove equipped with a combustion-supporting gas distribution device, which can easily realize the purpose of adjusting the firepower of the cooking stove according to different actual operation needs .

The utility model solves its technical problem and realizes by taking the following technical solutions:

This firepower adjustable biomass cooking stove is composed of a furnace body, a gas chamber installed inside the furnace body and a burner. A natural air valve is installed at the lower part of the furnace body. The side wall of the air distribution chamber is provided with a secondary air inlet, and a furnace grate is installed at the bottom of the gas-making chamber in the furnace body. The secondary air inlet is connected with a secondary air pipeline. The primary air pipeline and the secondary air pipeline extend out of the furnace body and are connected to a general air inlet pipe. The primary air inlet pipe and the secondary air inlet pipe located outside the furnace body Both the pipe and the total air inlet pipe are arranged in a casing fixed outside the furnace body, a primary air flow regulating valve is arranged on the primary air pipeline, and a secondary air flow regulating valve is arranged on the secondary air pipeline.

Moreover, the valve stems of the primary wind wave regulating valve and the secondary air flow regulating valve both protrude to the outside of the upper end of the housing, and the protruding ends of the valve stems are fixedly equipped with adjusting knobs.

Moreover, the general air inlet pipe is connected with an external air source.

Advantage and positive effect of the present utility model are:

1. The biomass cooking stove is equipped with a primary air pipeline and a secondary air pipeline, which can complete the forced air intake of the primary air and the secondary air, and artificially control the flow rate of the combustion-supporting gas, so as to realize the adjustment of the firepower. When a "high fire" is needed, the external air source can be turned on for forced air intake; when a "slow fire" is needed, the external air source can be turned off, and the natural air valve can be turned on to reduce the firepower, so as to adapt to the cooking operation on the firepower Diversified requirements, but also correspondingly save unnecessary energy consumption and prolong fuel combustion time.

2. The primary air pipeline and secondary air pipeline of this biomass cooking stove are equipped with flow regulating valves, and the adjusting knobs at the ends of the valve stems are all set outside the shell, so it is very convenient to adjust each air inlet. The gas flow rate of the pipeline is convenient to control the size of the firepower, and it has the advantages of convenient adjustment and easy use.

3. The structural design of the utility model is scientific and reasonable. By setting the combustion-supporting gas distribution device composed of the primary air pipeline and the secondary air pipeline, the adjustment of the firepower of the biomass stove is realized. The requirements for firepower diversification are also conducive to saving fuel.

Description of drawings

Fig. 1 is a front view (partial sectional view) of the present utility model.

Detailed ways

The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

A biomass cooking stove with adjustable firepower is composed of a furnace body 4, a gas chamber 6 and a burner 3 installed inside the furnace body. The upper part of the furnace body is provided with a stove top 1 on which cooking utensils can be placed. The lower part of the furnace body is provided with a natural wind valve 16 . Fire grate 15 is installed at the bottom of the gas chamber in the body of heater. A secondary air distribution chamber 2 is arranged on the periphery of the burner, and a secondary air inlet is provided on the side wall of the secondary air distribution chamber. Biomass gas escapes from the gas distribution hole opened on the burner and supports combustion under the action of secondary air. Its innovative point is: a primary air pipeline 14 is arranged at the lower part of the grate in the furnace body, and a secondary air pipeline 5 is connected to the secondary air inlet of the secondary air distribution chamber. The primary air pipeline and the secondary air pipeline extend out of the furnace body and are connected to a general air inlet pipe 11 through a three-way valve 10 . The primary air inlet pipe, the secondary air inlet pipe and the total air inlet pipe located outside the furnace body are all arranged in a shell 13 fixed outside the furnace body. A primary air flow regulating valve 12 is arranged on the primary air pipeline, and a secondary air flow regulating valve 9 is arranged on the secondary air pipeline. The valve stems of the primary air wave regulating valve and the secondary air flow regulating valve protrude to the outside of the upper end of the housing, and adjusting knobs are fixed on the protruding ends of the valve stems, and the labels are 7 and 8 respectively. The total air inlet pipe is connected with an external air source, and the external air source is a blower (not shown in the figure). When a "hot fire" is needed, the blower can be turned on for forced air intake. It is convenient to adjust the gas flow of each air inlet pipeline by adjusting the knob, so as to conveniently control the firepower. When a "slow fire" is needed, the external air source can be turned off, and the natural air valve can be opened to reduce the firepower, so as to meet the diverse requirements of cooking operations for firepower, and at the same time, it also saves unnecessary energy consumption and prolongs the fuel burning time. .

Claims (3)

1. A biomass cooking stove with adjustable firepower, which is composed of a furnace body and a gas chamber installed inside the furnace body and a burner. A natural air valve is arranged at the lower part of the furnace body, and a secondary air distribution chamber is arranged on the periphery of the burner. There is a secondary air inlet on the side wall of the secondary air distribution chamber, and a furnace grate is installed at the bottom of the gas-making chamber in the furnace body. The secondary air inlet of the chamber is connected with a secondary air pipeline. The primary air pipeline and the secondary air pipeline extend out of the furnace body and are connected to a general air intake pipe. The primary air intake pipe outside the furnace body, the secondary air Both the secondary air inlet pipe and the main air inlet pipe are set in a shell fixed outside the furnace body, a primary air flow regulating valve is set on the primary air pipeline, and a secondary air flow regulating valve is set on the secondary air pipeline . 2. The firepower adjustable biomass cooking stove according to claim 1, characterized in that: the valve stems of the primary air flow regulating valve and the secondary air flow regulating valve all protrude to the outside of the upper end of the housing, and The protruding ends of the valve rods are all fixedly equipped with adjusting knobs. 3. The biomass cooking stove with adjustable firepower according to claim 1, characterized in that: said main air inlet pipe is connected with an external air source.

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