Combustion of Changzhou boiler low nitrogen transforms case condensation boiler efficiency to rise h

Day and changes in temperature analyse Chinese environmental protection, energy-saving policy: Energy-saving policy is ceaseless aggrandizement, the system is ceaseless and perfect. Be like: August 2006, promulgated " about reinforcing the decision of energy-saving job " ; June 2007, went out " energy-saving reduce an omnibus work program " ; Carried out in November 2007 " the energy-saving statistic that decrease a platoon is monitored reach assessment to implement plan and measure " regulation, since 2008, chinese place is provincial will begin to make energy-saving exam paper up, if report fails,will be faced with ask duty and " one ticket is overruled " . National hair changes appoint, the case that builds ministry, the Ministry of Communication and each local government to also be aimed at cadre door, gave a series of energy-saving policy that decrease a platoon. Make gave energy-saving law and code. In October 2007, can pass " managing energy law (edit draft) " , new energy-saving law applied formally on April 1, 2008. With 1998 edition " managing energy law " photograph comparing, new after editing " managing energy law " increased to build energy-saving, traffic to carry energy-saving with communal orgnaization energy-saving content, made clear the fundamental sex action of energy-saving standard, increased policy drive strength, straightened the superintendency duty of relevant section, aggrandizement legal responsibility. Finish by 2007 " energy law " draft emphasizes " " opens source " and " of " reduce expenditure to pay equal attention to " , established technically " energy conservation " paragraphic.

Day and changes in temperature analyse: Why should undertake low nitrogen is transformed? Low nitrogen transforms pattern basically is control of low nitrogen combustion and extreme processing, pilot of low nitrogen combustion is low nitrogen transforms pattern to heating power model the effect of azotic oxide is most apparent. Extreme processing method includes include: SCR, SNCR, oxidation absorbs law and metallic catalysis law. Be known according to me, be in Beijing, majority low nitrogen is transformed is medium or small gas fired boiler is mixed light continuously of machine. If be gas fired boiler and the word is main transform way that light machine low nitrogen to transform continuously,can be low nitrogen only combustion controls this one. Low nitrogen transforms pilot of low nitrogen combustion to basically have mix combustion to reach beforehand diffuse type burns, mix combustion to include deficient beforehand beforehand mix up water-cooling is mixed beforehand, and diffuse type combustion low nitrogen transforms pattern basically is to classification combustion + inside flue gas / outer circulation. Above lists low nitrogen transforms means to be discharged to reducing azotic oxide all effective, the proposal that if have need really,low nitrogen transforms is used classification combustion + the means that flue gas circulates.

Day and changes in temperature analyse: At present low nitrogen burner transforms a principle to be roughly by low nitrogen combustion: Level burner, the level burner that according to classificationing combustion principle designs, make fuel and air section mix combustion, as a result of combustion deviate theory equivalent is compared, reason can reduce nitrogen generate. Oneself recycle burner, one kind is the pressure head that uses combustion air, absorb partial combustion flue gas, enter burner, mix combustion with air. As a result of flue gas recycle, the thermal capacity of combustion flue gas is large, combustion thermal drop is small, NOx decreases, namely flue gas outer circulation. Burner of recycle of another kind of oneself is a partial flue gas enter recycle inside burner directly, join combustion process, this kind of burner has restrain oxidation nitrogen and energy-saving and double effect, circulate inside flue gas namely. Shade burner, its principle is to make one part fuel has made thick combustion, another part fuel has made weak combustion, but empty tolerance keeps changeless on whole. Because two parts are in,deviate chemistry equivalent burns than falling, NOx is very consequently low, this kind of combustion calls deviate to burn again or blame chemistry equivalent burns. More information is accessibility Jiangsu day and website of equipment of changes in temperature.