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余热回收的烟道阻力问题

最新注册送体验金网站:Seniorofficialshaverecentlystressedtheneedto"avoidpropertymarketfluctuations",thatis,toavoidtoomuchstrengthaswellastoomuchweakness.Thecentralgovernmenthasaskedlocalgovernmentsto"containexcessivehomepricerisesinhotcities",throughmeasuressuchasincreasinglandsupplyandtighteninghousingpurchaserestrictions,whileinstructinglocalgovernmentsinsmallercitiestostimulatehousingsales.However,propertytaxlegislationisstillnotonthelegislativeagenda.Thecentralgovernmentaimstoremoveanother50milliontonsofexcesscapacityinsteeland150milliontonsincoalminingthisyear,followingagoodstartlastyear,whilecontinuingtosupporttheresettlementofaffectedemployees,usingspecial"adjustmentfunds"andfiscaltransfers.Asexperimentswith"mixedownership"reformsofState-ownedenterprisescontinue,thegovernmentisalsoallowingprivatecapitaltotakeaminorityshareinSOEsinsectorsdominatedbythem,inpartinordertomeettheneedforfinancing.Ithaspromisedtoopenthecompetitiveareasofthepower,oilandgassectorstoprivateenterprises.Butgiventhelackofprogressinthisareaoverthelast10years,itremainstobeseenhowmuchprogresswillbemadethistimearound.Indeed,inourview,theprogressonlevellingtheplayingfieldbetweenSOEsandothercompaniesremainsunconvincing.Chinaisamajorbeneficiaryofglobalization,andthegovernmentwantsthisphenomenontocontinuedespitetheincreasinginternationalheadwinds.FollowingtheUS'withdrawalfromtheTrans-PacificPartnershipagreement,theChinesegovernmenthaspromotedfreetradeandinvestment,includingestablishingafreetradeareaoftheAsiaPacificregion.AndamidcomplaintsbyWesterncompaniesandgovernmentsaboutthelackofaccesstomarketsinChina,thegovernmenthaspromisedtofurtheropenuptoforeigncompaniesandfinancialinstitutions,followingmovesearlierthisyeartogivethemeasieraccess.Ithasalsovowedtofurtherrelaxinvestmentrestrictionsonforeigninvestorsandencourageoverseas-investedcompaniestolistandissuebondsinChina.Inconclusion,thegovernment'seconomicplansforthisyearshowthat,despitemoreemphasisoncontainingfinancialrisks,solideconomicgrowthisstillakeyobjective.Inall,theplannedmacrostanceissomewhatlessgenerousthanlastyear.TheauthorisheadofAsiaeconomicsatOxfordEconomics.

2017-03-02

锅炉整个烟道阻力主要由引风机和烟囱自拔力来克服,其中引风机是主要因素。安装余热回收器后锅炉整体烟气阻力必然增加。以某电厂 3 号炉热力计算结果为例,烟道阻力增加约 70 Pa 左右。在加装余热回收器的同时是否对引风机进行改造,进一步提高出力,确保安装余热回收器后锅炉本体的正常运行,视现场情况确定。

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