欢迎各界同仁来人来电咨询、洽谈!详细资料至公司索取。我们将以***的产品，超低的价格，优质的服务与您密切合作，共谋发展！企业***：国内***：400-6969-728技术咨询：021-5160262751602681【进口压缩机国际亚洲配送中心】【中国空压机备品备件营销中心】空压机安全阀有弹簧式和杆式两大类。另外还有冲量式安全阀、先导式安全阀、安全切换阀、安全解压阀、静重式安全阀等。弹簧式安全阀主要依靠弹簧的作用力而工作，弹簧式安全阀中又有封闭和不封闭的，一般***、***或***的介质应选用封闭式，蒸汽或惰性气体等可以选用不封闭式，在弹簧式安全阀中还有带扳手和不带扳手的。杠杆式安全阀主要依靠杠杆重锤的作用力而工作，但由于杠杆式安全阀体积庞大往往限制了选用范围。温度较高时选用带散热器的安全阀。安全阀顾名思义是保证压力管道、压力容器的关键安全应用保障，为了保证安全阀的正常工作及延长安全阀的使用寿命，在使用中应做到定期检查运行中的安全阀是否泄漏，卡阻及弹簧锈蚀等不正常现象，并注意观察调节螺套及调节圈紧定螺钉的锁紧螺母是否有松动，若发现问题及时采取适当的维护措施。还应定期将安全阀拆下进行***清洗、检查并重新研磨、整定后方可重新使用。安装在室外的安全阀要采取适当的防护措施，以防止雨、雾、尘埃、锈污等脏物***安全阀及排放管道，当环境低于摄氏零度时，还应采取必要的防冻措施以保证安全阀动作的可靠性。本类阀门在管道中一般应当按照工况正确安装。空压机安全阀的主要参数是排量，这个排量决定于阀座的口径和阀瓣的开启高度，由开启高度不同，又分为微启式和全启式两种。微启式是指阀瓣的开启高度为阀座喉径的1/40～l/20。全启式是指阀瓣的开启高度为阀座喉径的1/4。由操作压力决定安全阀的公称压力，由操作温度决定安全阀的使用温度范围，由计算出的安全阀的定压值决定弹簧或杠杆的定压范围，再根据使用介质决定安全阀的材质和结构型式，再根据安全阀泄放量计算出安全阀的喉径。以下为安全阀选用的一般规则。（l）热水锅炉一般用不封闭带扳手微启式安全阀。（2）蒸汽锅炉或蒸汽管道一般用不封闭带扳手全启式安全阀（3）水等液体不可压缩介质一般用封闭微启式安全阀，或用安全泄放阀。（4）高压给水一般用封闭全启式安全阀，如高压给水加热器、换热器等。（5）气体等可压缩性介质一般用封闭全启式安全阀，如储气罐、气体管道等。（6）E级蒸汽锅炉一般用静重式安全阀。（7）大口径，大排量及高压系统一般用脉冲式安全阀，如减温减压装置、电站锅炉等，如图8所示。（8）运送液化气的火车槽车、汽车槽车、贮罐等一般用内装式安全阀，如图4所示。（9）油罐顶部一般用液压安全阀，需与呼吸阀配合使用。（10）井下排水或***管道一般用先导式安全阀，如图6所示。（11）液化***站罐泵出口的液相回流管道上一般用安全回流阀。（12）负压或操作过程中可能会产生负压的系统一般用真空负压安全阀。（13）背压波动较大和******的容器或管路系统一般用波纹管安全阀。举例：A28X-16T空压机安全阀A表示安全阀2表示外螺纹连接8表示不封闭全启式X表示阀座密封面为橡胶16表示公称压力1.6MpaT表示材质为铜Welcomecolleaguesfromallwalksoflifecometoinquire,negotiate!Detailedinformationtocompanytoclaim.Wewillbefirst-classproducts,lowprices,highqualityserviceinclosecooperationwithyouandseekcommondevelopment!Corporatewebsite:Domestichotline:400-6969-728Technicalc***ultation:021-5160262751602681【importedcompressorinternationalAsiadistributioncenter】【Chineseaircompressorsparepartsmarketingcenter.Aircompressorhasaspringloadedreliefvalveandthebartypetwokindsbig.Anotherimpulsesafetyvalve,pilotoperatedreliefvalve,safetyvalveswitch,security,decompressionvalve,staticweighttypereliefvalve,etc.Springloadedsafetyvalverelymainlyonthespringforceandwork,springloadedreliefvalveisclosedandnotclosed,inflammable,explosiveortoxicmediumshouldchooseenclosed,steamorinertgasandsooncanchooseisnotclosed,thespringsafetyvalvewithawrenchandnotwithawrench.Levertypereliefvalvereliesmainlyontheleverandweightandthepowerofthework,butasaresultoflevertypereliefvalvebulkytendtolimitthescopetochoose.Highertemperaturewhenchoosingsafetyvalvewithradiator.Reliefvalveasthenamesuggestsisthekeyofpressurepipelineandpressurevesselsafetyapplicationsecurity,inordertoguaranteethenormalworkofthesafetyvalveandprolongtheservicelifeofthereliefvalve,inuseshouldberegularlycheckwhethertherunningsafetyvalveleakage,jamandspringabnormalphenomenonsuchascorrosion,andobservetheadjustingandregulatingringtightsetscrewascrewlocknutloose,iffoundtheprobleminatimelymannerappropriatemaintenancemeasuresaretaken.Thereshouldbesafetyvalvewillberemovedonaregularbasistoconductacomprehensivecleaning,checkandregrinding,settingtherearcanbeusedagain.Installedinoutdoorsafetyvalvetotakeappropriateprotectivemeasures,topreventtherain,fog,dust,ruststainsanddirtintothereliefvalveanddischargeline,whentheenvironmentisbelowzerodegreescentigrade,alsonecessaryantifreezingmeasuresshouldbetakeninordertoensurethereliabilityofthesafetyvalveaction.Thisvalveshallgenerallybeinaccordancewiththeconditi***properlyinstalledinthepipeline.Mainparametersofaircompressorvalveisdisplacement,thedisplacementisdeterminedbytheheightofthecalibreofthevalveseatandvalvedisctoopen,fromopenheightisdifferent,isdividedintotinyqitypeandfullrev.Typetwokinds.Microrev.Typereferstotheopeningheightofthediscseatthroatdiameter1/40~l/20.Therev.Typereferstotheopeningheightofthediscseatthroatdiameterofaquarter.Isdeterminedbytheoperatingpressureofthereliefvalve,nominalpressure,isdeterminedbytheoperatingtemperatureofthereliefvalveusingtemperaturerange,thereliefvalvesetpressurevaluecalculatedbyspringorleveragec***tantpressurerange,accordingtodeterminethereliefvalveusingmediummaterialandstructure,thenaccordingtothesafetyvalvereliefvalvedischargevolumecalculatedthroatdiameter.Thefollowinggeneralrulesforsafetyvalveischosen.(l)hotwaterboilerwithnormallyclosedmicroandsafetyvalvewithawrench.(2)steamboilerorsteampipewithnormallyclosedwithawrenchandallsafetyvalve.(3)theliquidincompressiblemediumsuchaswaterwithnormallyclosedandsafetyvalve,orusethesafetyreliefvalve.(4)highpressurefeedwaterwithnormallyclosedallrev.Safetyvalve,suchashighpressurefeedwaterheater,heatexchanger,etc.(5)thegascompressibility,suchasdielectricwithnormallyclosedandsafetyvalve,suchasgasstorage,gaspipeline,etc.(6)Edeadweightiscommonlyusedinsteamboilersafetyvalve.(7),largediameter,largedisplacementandhighpressuresystemsgenerallyuseimpulsesafetyvalve,desuperheatingdecompressiondevice,powerplantboiler,etc.,asshowninfigure8.(8)traintransportliquefiedpetroleumgastankcar,car,tankcar,tank,etc.Generalusebuilt-insafetyvalve,asshowninfigure4.(9)atthetopofthetankgeneralusehydraulicpressurereliefvalve,shouldbeusedwithbreathervalve.(10)undergrounddrainageorgaspipelineworkersgenerallyusepilotoperatedreliefvalve,asshowninfigure6.(11)liquefiedpetroleumQiZhanliquid-phaserefluxtankpumpdischargelinegenerallyusesafebackflowpreventer.(12)negativepressureoroperationmayproducenegativepressuresystemcommonlyusedintheprocessofvacuumnegativepressurereliefvalve.(13),backpressurecontainersofvolatileandtoxicflammableorbellowsvalveiscommonlyusedinpipingsystem.Example:A28X-16Taircompressorvalve8saidsaidmale2AforthereliefvalveconnectionisnotclosedfullyrevtypeXsaidvalveseatsealingsurfacefortherubber16saidnominalpressure1.6MpaTsaidmaterialiscopper)