Before using biomass burner should be noted

dRelease time：2016-04-12 Clicks：419

A good performance automatic biomass combustion engine mounted on a boiler, is still with the same good combustion performance depends largely on the aerodynamic characteristics of both matches. Only good match to play biomass burner performance, ensure the stability of the combustion chamber to achieve the desired energy output, good thermal efficiency of the boiler.

1 of the match:

A one-piece automatic biomass burning machine like a flamethrower, flame sprayed into the furnace (chamber), to achieve complete combustion and heat output in the furnace, biomass burner manufacturers of products of complete combustion the measurement was carried out specific criteria of the combustion chamber. It is generally the standard laboratory conditions on a selection condition burner and boiler. These conditions are summed up:

(1) Power;

(2) airflow pressure inside the furnace;

Space (3) and furnace geometry (diameter and length).

The so-called aerodynamic characteristics match, but also refers to the extent to satisfy these three conditions.

2, power:

Biomass combustion power machine refers to the full combustion, which can burn an hour how much mass (kg) or volume (m3 / h, the standard state) of fuel, but also give the corresponding thermal energy output (kw / h or kcal / h). The boiler steam production calibration is also indicated fuel consumption, the selection of both must match.

3, the gas pressure inside the furnace:

In an oil (gas) boilers, hot air from the burner, through the furnace, heat exchangers, flue gas collector and the exhaust chimney to the atmosphere to form a thermal fluid process. Hot air generated by combustion, * upstream pressure head in the furnace channel flow, like water, like the river, * difference (gap, head) to the downstream flow. Because hearth furnace wall, channel, elbow, tailgate, Gap and chimney on the flow of gas there is resistance (known as flow resistance) will cause pressure loss. If you can not overcome the pressure head loss along the way, the flow on can not achieve. It is necessary to maintain a certain flue gas pressure inside the furnace, the combustion engine is concerned, said counter-pressure of the wind means no boiler, furnace pressure must be considered along above atmospheric pressure after head loss.

Back pressure directly affects the size of the biomass burner output, with the size of the back pressure, the length of the flue and furnace geometry related. Flow resistance of the boiler burner requires higher pressure for a particular burner, its head has a maximum value, corresponding to the maximum throttle, maximum air flow conditions. When the intake throttle throttle change, air volume and pressure change also followed, the burner output changes also followed. Wind ram small hours, when the air volume head high. For a particular pot Shanghai, came when the air volume flow resistance along with larger, so that higher backpressure chamber. The higher backpressure of the furnace and suppress natural burn-out of the wind, so the choice of biomass burner when certain to understand the power curve, so that a reasonable match.

4, the furnace size and geometry effects:

For the boiler, the furnace space, in the design of the first heat load intensity depends on the selection of the furnace, which can be initially identified based on the volume of the furnace.

After the furnace volume is determined, should also determine the shape and size of the design principle is to fully utilize the furnace volume; try to avoid dead ends, to have a certain depth, reasonable flow, ensure adequate reaction time, so that complete combustion of fuel in the furnace, change words, let the burner exhaust flames in the furnace there is sufficient residence time, because despite the mist particle is small (<0.01mm), mixed gas has been ejected before the ignition burner and began to burn, but not sufficient. If the furnace is too shallow, the residence time is not enough to incomplete combustion occurs, the light exhaust CO overweight, heavy black smoke, mainly the power. Therefore, in determining the depth of the furnace, the flames should be in line with the length of the center back ignition should also increase the diameter at the outlet to ensure the volume occupied by the gas reflux.

Furnace geometry affect the uniformity of the main stream flow resistance and radiation. A boiler in order to go through repeated debugging and biomass burning machine has a good match.

Filter - fuel for steam boiler burner requires cleaning the filter basket between the reservoir and the pump. Regular cleaning of the filter can be maintained successfully reached the fuel pump, and reduce potential component failure possibilities. Also check the filter to see if there are signs of excessive wear or damage.

Pressure regulating valve - Check fuel pressure regulator valve or valves, to determine whether to adjust the lock nut on the bolt surface clean and detachable. If the screws and nuts too dirty or rusty surface, it should repair or replace the valve. Lack of maintenance of the fuel control valve may cause the burner obstacles.

Pump - Check the steam boiler burner pump to determine its seal intact, whether the internal pressure remains stable, the replacement of damaged or leaking seal member. If using hot oil, you need to make sure that all the pipe is well insulated; if there is oil in the pipeline longer need to check the installation path is appropriate. Replace damaged and poor insulation tubing.

Burner - Burner for fuel vapor cleaning "y" type filter. Good heavy oil and residual oil filtering effect is to prevent nozzle clogging and critical valves. Check the pressure difference on the burner to see if working properly, oil pressure is within the proper range, it will ensure that after adjusting the burner fuel pressure can be read out accurately. The atomizer nozzle extension length adjustment, adjustment and detection of low oil pressure switch.

When using heavy oil, check the fuel steam boiler and heating controls, and view the oil burner switch on the tube group. Consult the manufacturer oil viscosity required to ensure that the burner is working properly, and regularly check with heavy oil or residual oil viscosity to meet the requirements.

Cleaning and lubricating valve connection is necessary. If the bond or connection too rough, you need to repair or replace the steam boiler fittings together.

Finally, according to the manufacturer's requirements for regular cleaning nozzle.

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