Fabrication of gas-burning straw stove without smoke

After many years of self-research and research, Mr. Bui Trong Tuan, in Thanh Binh Street, Thanh Mieu Ward, Viet Tri City, Phu Tho Province, has successfully manufactured a gas stove of straw, sawdust, and exposures. leaves, residues of smokeless sugarcane and ash plants.

This innovative kitchen has helped reduce the pressure on fossil energy demand which is increasingly depleted, reducing greenhouse gas emissions, reducing funding for waste disposal .

Mr. Bui Trong Tuan said that gasification stove is produced based on the principle of aerodynamics, heat transfer through the use of complete air harmony between air and steam to prevent the production of tar, prolonged burning time without ash and soot. With recirculation technology sealed flame compression increases heat radiation, improves thermal efficiency to the maximum extent, completely clean combustion with high productivity.

Gas cookers include fuel storage and combustion components, gas pipes and gasification chambers; in which the fuel tank and the two-layer combustion fuel are loaded and burned into smoke, the smoke is fed through a chimney pipe with a connection to the upper part of the two-layer fuel tank and a connector to the lower part of the chamber gas containing water inside.

The smoke duct has a smoke control valve near the two-layer fuel tank to regulate the amount of smoke from this tank into the gasification chamber. After entering the gasification chamber, the chimney is connected to the gas pipe for the kitchen through the branching duct. This branching pipe section is connected to the gas supply pipe to the kitchen through the branching pipe section.

This branching pipe section is connected to the first air supply pipe via the second air supply pipe, on which a second valve is installed. The first air supply hose is inserted through the bottom of the fuel tank to blow air from the fan through the first valve into this container. The second air supply hose connects to the branch duct to blow air from the fan through the second valve into the gas supply hose for the kitchen.

Gas supply pipe for the stove to conduct gas combustion from the air duct, through the branching pipe and supply to the kitchen using battery ignition system. Fans are fans that can operate with alternating mains power or DC power from the battery to operate even when the power is off.

The use of the kitchen is also very simple. Users put fuel into the gas tank and cover it. Open valves according to instructions and lighters (like gas stoves). The cooking process can increase or decrease the fire on the stove by adjusting the fan speed or adjusting the kitchen lock. The fire was clear and there was no yellow fire, no black smoke. The ignition frequency reaches more than 8/10 times on fire, there is no succession twice without fire and there is no flare phenomenon, the time to open the valve is less than 45 seconds.

If you put 2kg of fuel, you can burn for about 3 hours; 10kg of fuel only needs to be burned once, after use, turn off the fan, close the compost valve and use the next 7 days. Normally 2 to 3 days of refueling once, 5 to 7 days of discharge once.

Ordinary families only need 2-3kg of fuel to meet daily needs, saving up to 70% compared to conventional kitchens. Pressure from air inlet to 4.2kpa ignition valve, air leakage is less than 0.07l / h, CO smoke is less than 0.05%.

Currently, gas stove has been produced into a marketed product, with prices of 2-3 million VND (depending on the volume of containers), which is favored by many farmers, using time from 10 -15 years, each year saves 1-2 million VND compared to using gas, coal and firewood to serve the cooking needs of a household.

In the first year of the market, the company has released 1000 stoves per year, expected in the coming time, Mr. Bui Trong Tuan will invest in the construction of the factory, increasing the capacity to 4,200 units / year. Enterprises are continuing to research to replace valve assemblies that must be imported from China with on-site production equipment, changing the model design to lower production costs.

Gas stove has been registered as an exclusive patent at the National Office of Intellectual Property, Ministry of Science and Technology.