A kind of small-sized biomass shaped fuel boiler electricity igniter
Technical field
The present invention relates to a kind of electric ignition device, particularly to a kind of small-sized biomass shaped fuel boiler electricity igniter, belong to small-sized biomass shaped fuel ignition of the boiler technical field.
Background technology
Sulfur dioxide, nitrogen oxides and the dust pollution question that fire coal causes, is increasingly subject to people's attention.By one of important means that biomass shaped fuel boiler replacement coal-burning boiler is energy-saving and emission-reduction, particularly with coal-burning boiler pollution control widely distributed, that capacity is less, have more significance.
The igniting of small-sized biomass shaped fuel boiler is based on electrical heating igniting, and its operation principle is through the heating heating biological matter shaped fuel being embedded in biomass molding fuel layer so that it is progressively heats up, reaches ignition temperature, thus realizing smooth combustion.This ignition temperature is near 300 DEG C, and to maintain a period of time at this temperature, could realize stable and have lighting of some strength.Owing to biomass have higher volatile matter content, and volatile matter initial release temperature is lower than 200 DEG C, thus can discharge substantial amounts of volatile matter in ignition procedures.Fuel gas in volatile matter such as CO, CH4Understand damage to the environment with short chain hydrocarbons, and easily form white carbon black, show as ignition procedures over-emitting black exhaust.
Summary of the invention
For the shortcoming overcoming existing small-sized biomass shaped fuel ignition of the boiler mode to exist, improve speed of ignition, reduce the pollutant emission in ignition process, it is an object of the invention to provide a kind of small-sized biomass shaped fuel boiler electricity igniter, this device is made up of biomass molding fuel electrical heating lighter and electric spark igniter;Make it compared with prior art, there is the advantage that heating-up temperature is low, speed of ignition is fast, pollutant emission is few.
Technical scheme is as follows:
A kind of small-sized biomass shaped fuel boiler electricity igniter, it is characterised in that: described small-sized biomass shaped fuel boiler electricity igniter is made up of biomass molding fuel electrical heating lighter and electric spark igniter;Described electric spark igniter is made up of high tension generator, sparker;Described biomass molding fuel electrical heating lighter is arranged on small-sized biomass shaped fuel boiler to be needed in the fuel bed lighted;Described sparker is arranged on the top of described biomass molding fuel electrical heating lighter, and needs the upper surface distance of the fuel bed lighted within the scope of 0 10cm with small-sized biomass shaped fuel boiler;Described sparker is connected with described high tension generator, described high tension generator provide high-tension electricity.
The present invention compared with prior art, has the following advantages and salience effect:
Small-sized biomass shaped fuel boiler electricity igniter provided by the invention, different from conventional biomass boiler igniter, it relies on biomass molding fuel electrical heating igniter heats dried biomass shaped fuel to 100 DEG C, then proceed to heating biological matter shaped fuel, make biomass molding fuel start to discharge volatile matter, produce with CO, H2、CH4Fuel gas for main component.Then, utilizing electric spark igniter to light fuel gas, the volatile matter gas of burning ignites biomass molding fuel, reaches the purpose lighted.Owing to biomass molding fuel need not be heated to 300 DEG C, and keep certain time, so decreasing molding biomass fuel heat time heating time, can CO, CH of damage to the environment thus decreasing4With the release of the gases such as short chain hydrocarbons, it also avoid the generation of dense black smoke, therefore ignition process be discharged into the fuel gas in air and pollutant are all greatly reduced.
Accompanying drawing explanation
Fig. 1 is the structural representation of the small-sized biomass shaped fuel boiler electricity igniter of the present invention.
In figure: 1-sparker;2-electric spark igniter;3-high tension generator;4-biomass molding fuel electrical heating lighter.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further with being embodied as case.
Fig. 1 is the structural representation of small-sized biomass shaped fuel boiler electricity igniter of the present invention.Described small-sized biomass shaped fuel boiler electricity igniter is made up of biomass molding fuel electrical heating lighter (4) and electric spark igniter (2);Described electric spark igniter is made up of high tension generator (3), sparker (1);Described electrical heating lighter is arranged on small-sized biomass shaped fuel boiler to be needed in the fuel bed lighted;Described sparker is above described biomass molding fuel electrical heating lighter, and needs the upper surface distance of the fuel bed lighted within the scope of 0 10cm with small-sized biomass shaped fuel boiler;Described sparker is connected with described high tension generator, described high tension generator provide high-tension electricity.
The action principle of the present invention is: being arranged in small-sized biomass shaped fuel boiler needs the biomass molding fuel electrical heating lighter 4 in the fuel bed lighted after energising, and heating is distributed in biomass molding fuel thereon;Biomass molding fuel is heated in the process of 100 DEG C, dries out gradually and is dried;Continuing the biomass molding fuel that heating is dried, volatile matter is released gradually;Along with the rising of temperature, CO, the H in volatile matter2And CH4Increase sharply Deng combustable gas concentration.High tension generator 3 drives sparker 1 to produce high-temperature electric spark, lights these fuel gas.The fuel gas of burning heats rapidly and ignites biomass molding fuel, thus reaching the purpose quickly lighted.
In figure: 1-sparker;2-electric spark igniter;3-high tension generator;4-biomass molding fuel electrical heating lighter.
Embodiment:
Small-sized biomass shaped fuel boiler electricity igniter provided by the invention is try out on the small-sized fire grate biomass molding fuel normal-pressure hot-water boiler of 350KW at thermal power rating.Wherein electrical heating igniter is arranged on fire grate, covers the biomass molding fuel needing to light above.Biomass molding fuel is formed by corn straw compacting, granule is cylindric, diameter 68 millimeters, length 30 40 millimeters, percentage of damage is less than 2.0%, dry basis moisture content is less than 10%, content of ashes is less than 1.5%, and sulfur content and chlorinity are respectively less than 0.07%, and low heat valve is not less than 3500KCal/kg, nitrogen content is less than 0.5%, and volatile matter content is more than 65%.
This boiler adopted automatic electric-heating sparking mode, automatic electric-heating igniter power 350W originally, was arranged on fire grate, covered the biomass molding fuel needing to light above.After starting igniting, opening air-introduced machine and electrical heating igniter, fuel volatile matter precipitates out in a large number, starts to emit dense black smoke.After 57 minutes, naked light occurs, stops over-emitting black exhaust, and ignition of the boiler completes.
Small-sized biomass shaped fuel boiler electricity igniter provided by the invention is installed, substitutes original boiler automatic electric-heating igniter.Wherein biomass molding fuel electrical heating lighter power remains as 350W, high tension generator can produce the High Level AC Voltage of 5.4KV, sparker tip is positioned on biomass molding fuel layer 7cm place, is positioned at the surface of biomass molding fuel electrical heating lighter.After starting igniting, opening air-introduced machine, biomass molding fuel electrical heating lighter and high tension generator, sparker begins to send out Pi crack electric spark sound, having slight black smoke to emerge, after 23 minutes, naked light occurs, stopping over-emitting black exhaust, ignition of the boiler completes.
Small-sized biomass shaped fuel boiler electricity igniter provided by the invention is installed compared with former electrical heating igniter, has that speed of ignition is fast, pollutant emission is few, the advantage of power saving.
The above, be only the specific embodiment of the present invention, when not limiting scope of the invention process with this, and all equivalent variations made according to the present invention and modification, all should belong to protection scope of the present invention..