What is the principle of straw vaporizer? Which straw vaporizer is better?

Straw gasifier is also called straw gas furnace, environmental protection and energy-saving gasifier, straw gas furnace, straw vaporizer, household straw gasifier, environmental protection and energy-saving vaporization furnace, biomass gasifier, and high-efficiency biomass gas furnace.

Structure and Principle:

The middle and upper part of the straw gasifier is the furnace body, which is not only used as the charging bin of the straw material to be burned, but also as the combustion chamber. The center position of the upper end of the furnace body is provided with a feeding port, and the feeding port sealing cover with a water seal is arranged on the feeding port. The middle and lower part of the straw gasifier is provided with a water-cooled radiator structure as the combustion grate of the gasifier.

The lower furnace body below the water radiator structure is provided with a cooling jacket with a sandwich layer, and the water in the cooling jacket communicates with the water of the water cooling radiator structure, and the water pump drives the circulation.

The straw gasifier has the functions of biomass raw material gas production, gas purification, and automatic separation. When the fuel is put into the furnace to produce a large amount of CO and H2, the gas is automatically introduced into the separation system to carry out the purification procedures of detaring, removing smoke and dust, and dewatering vapor, so as to produce high-quality gas, which is transported to the gas stove through the pipeline and ignited (can also be used for electronic ignition).

1. Straw gasifier is a kind of combustible gas produced by using biomass through closed hypoxia, which is produced by slip pyrolysis method and thermochemical oxidation method, which is a mixed gas, containing carbon monoxide, hydrogen, methane, etc., also known as biomass gas.

2. The straw gasifier is made of pellet fuel after compression molding of biomass straw as raw material, and air and water vapor as gasifier to make gas, which is used for catering, stoves, boilers and various heating furnaces, replacing fuel oil, and saving a lot of costs for users with low cost. Biomass pellet fuel gasification technology is the energy conversion process of heating reaction of biomass pellet raw materials in an anoxic state.

3. Biomass is generally composed of carbon, hydrogen, oxygen and other elements and ash, when they are ignited, a small amount of air (oxygen), and take effective measures to control its reaction process, so that carbon and hydrogen elements become carbon monoxide, methane, hydrogen and other combustible gases, and most of the energy in the straw is transferred to the gas, which is the gasification process.

Fourth, the basic principle of gasification: the use of oxygen and a part of the biomass combustion to provide heat for thermal decomposition and reduction reaction, so that the solid biomass into gaseous fuel. Its main advantage is that the biomass pellet fuel gasifier is a new product developed by our institute for biomass instead of oil-fired boilers, and the high-temperature gas produced by the gasification of raw materials is directly burned at the flamevent of the gasifier burner, and there is no precipitation of high boiling matter such as tar.

The elements of straw, corn stalks, corn cobs, firewood, firewood, etc. are mainly carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus, etc.

The principle of straw gasification is: straw as fuel, in the state of lack of oxygen, incomplete combustion, through drying, dry distillation, oxidation, reduction and other stages, to generate a certain amount of carbon monoxide, hydrogen and methane combustible gas, etc., by the pressure generated by the small fan will be combustible gas pressed out from the top of the gasifier, the gas produced by water collection filtration, dust removal, tar removal device and through the gas pipeline and connected to the stove. It can be burned after it is lit.

Zhengzhou Jiancheng Energy Technology **** produces products in this regard, if you want, you can check it and contact us!

The basic principle of its gasification:

Oxygen and a part of the biomass are burned to provide heat for thermal decomposition and reduction reactions, so that solid biomass can be converted into gaseous fuel.

Its main advantage is that the biomass pellet fuel gasifier is a new type of product developed by our institute for biomass instead of oil-fired boilers, and the high-temperature gas produced by raw material gasification is directly burned at the flamevent of the gasifier burner, and the high-temperature flue gas is directly burned without cooling, so there is no high-boiling matter such as tar precipitation. There are multiple air distribution for combustion, which can ensure that the biomass is fully burned and will not emit black smoke.

Here's how to make it:

1 required materials and size 1 old iron drum, 1 40 watt-60 watt fan, 2 switches, 2 tee joints, pipe fittings with a diameter of 1 inch, the length is prepared according to the requirements of the drawings, and the production cost of a simple gasifier does not exceed 100 yuan. It is best to use a large iron drum and weld and cut the relevant parts of the iron drum according to the requirements of the drawing.

2 Installation of the grate Place a circle of vertical bricks (24 cm high) along the bottom of the inner wall of the iron barrel, and then place the steel bar of appropriate length on the bricks at intervals of 1 cm, and fix them with mud or cement. Place two layers of vertical bricks around the iron drum above the grate, and then wipe the hearth with mud on the brick surface, and the hearth is best smeared into a slightly pot bottom shape to facilitate the concentration of fuel in the middle of the nozzle, and the inner diameter of the hearth is about 35 cm. (Be sure to wait for the furnace to dry before ignition).

3 Nozzle installation The nozzle is the key part of the gasifier, because the temperature in the furnace is high, the nozzle is easy to be damaged, so it is required to use a special nozzle. The nozzle can be fixed with a flange (easy to replace) or directly welded to the drum (if it needs to be replaced, it can be re-welded).

4 Installation of water collection bottle The function of water collection bottle is to collect water in the pipeline and remove tar, and at the same time has the effect of safety pressure limiting.

5 Indoor stove installation After the gasifier stove is lit normally, the flame should be blue and red, and the room should be smokeless, dust-free and odorless. The cooktop should be placed next to the window, and a row of fans should be added to the window above the cooktop to vent the fumes from the kitchen when stir-frying.

Its main equipment and working process:

The main equipment of the multi-family centralized gas supply system includes: downdraft gasifier, filter, fan, water sealer, gas storage tank (also known as gas tank), pipelines, and stoves used in the family.

The fuel of the down-suction gasifier flows from top to bottom in the furnace, and the tar produced by the thermal decomposition layer can be pyrolyzed into a permanent body with a small molecular weight when it passes through the oxidation-reduction layer, so the tar content in the gas produced by the furnace is relatively small, and the gasifier has been widely used in small-scale production at home and abroad, the reason is that it has a simple structure, reliable operation, reasonable matching between gas production and gas consumption, and less raw material consumption, and the experience of design, manufacturing, installation and use of this furnace type is relatively mature. The gasifiers used in hundreds of biomass gasification stations in China basically belong to this type.

The gas produced by the down-suction gasifier is filtered by the filter to achieve the purpose of purification and cooling, and the flow of gas is realized by the pumping force of the fan, and the gas from the fan has a certain pressure and is sent to the gas storage tank through the water sealer. The water sealer is equivalent to a one-way valve, it only allows the gas to be transported to the gas storage tank, and when the fan stops, the liquid level of the water sealer blocks the reverse flow of gas. The gas in the gas tank should maintain a constant pressure, and the size of the pressure value should ensure the pressure of the farthest user's stove, and the gas in the gas tank should enter the main gas supply pipeline through the flame arrester.

The main function of the filter is to remove tar and dust in the gas, and the common treatment methods include spray method, soaking water bath method, dry filtration method and a combination of several methods. Our small unit generally adopts a combination of water bath method and dry filtration method, the gas is washed by water, which plays a dual purpose of purifying tar and cooling, and then purified by dry filtration The gas is relatively pure, the so-called dry filtration is to fill the container with crushed corn cob, wood chips, chaff, etc., so that the gas passes through, so as to play a certain adsorption role.

Biomass gas storage tanks, also known as gas cabinets, are generally divided into wet and dry. At present, the wet (also known as variable capacity wet) gas tank is more widely used in China, which is like a water cup upside down in a bucket. The gas pressure in the tank depends on two factors:

One is the size of the transverse area of the tank, and the other is the total weight of the floating cover, including the counterweight. This pressure must be within the allowable range of the pressure that the fan can provide, when the pressure in front of the user's stove farthest away from the gas storage tank is not enough, the counterweight should be appropriately increased to increase the gas pressure in the tank.

The whole system can be understood in layman's terms: down-suction gasifier--- purification box (filter) - fan--- water sealer--- gas storage tank--- gas pipeline network--- stove to 5-6 households to install this furnace as an example, the initial investment needs about 4000 yuan, each household is equivalent to 800 yuan, the system operation costs very little, the use is very convenient, people can ignite the furnace gas production (burning for half an hour for five or six households a day gas demand) to store the gas generated in the tank, When you need to cook, you only need to open the valve to use gas, the fire is stable, and the calorific value is generally about 5500kj m3.

Resources.

Don't believe the gasifier, its technology is immature, it is all deceptive, and it cannot meet the requirements of high efficiency and low emissions. The disadvantage is that tar cannot be processed, and tar is harmful to the human body. It is also easy to clog the pipes.

Pollute the environment, fall to the ground and plants cannot grow. If you want to do it, make a semi-gasifier, and I can give you the schematic.