《电磁液动缓闭闸阀在水泵房中的实际应用》由会员分享，可在线阅读，更多相关《电磁液动缓闭闸阀在水泵房中的实际应用（3页珍藏版）》请在金锄头文库上搜索。
1、电磁液动缓闭闸阀在水泵房中的实际应用2010-04-01电磁液动缓闭闸阀在水泵房中的实际应用译文:在给水泵出口处原装有手动闸阀(即水泵控制阀)和止回阀，以保证水泵轻载启动，停泵后防止介质倒流并消除水泵对机泵的影响。然而，因水泵控制阀为手动闸阀，在水泵启、停过程中必须手动操作，操作时间长且随意性很大，劳动强度大;同时，由于手动闸阀启闭频繁，法兰漏水问题很难解决，由原止回阀瞬时关闭常常发生很大的水锤冲击，水泵及管网系统存在安全隐患。一.电磁-液动缓闭闸阀简介:该阀依靠自身管内介质压力作动力源，在常规控制和PLC电控设备的配合使用下，可实现自动控制、远程控制、集中控制、多点控制及泵阀一体化。因此，简
2、化了操作程序，降低了工人劳动强度，并且该阀在电网突然停电时，能自动先快后慢地关闭。由于关阀过程分为先快后慢两个阶段完成，故又能有效地防止和消除危害性水锤对管网设备的破坏。二.使用效果:1.简化控制系统:采用电磁-液动缓闭闸阀后，实现了机电一体化控制。开泵时，按下水泵启动按钮，水泵开始运转，当水泵达到正常运转时，阀门自动先慢后快开启;关泵时，按下水泵停止按钮，阀门开始先快后慢进行关闭，当即将完全关闭时，水泵自动停止运转，突然停电时，阀门利用管道回流介质自动先快后慢进行关闭。该阀不需要任何外加动力，便可实现直接对水泵进行启停控制，不公保证了水泵电机轻载启动，而且彻底解决了因突然停电而造成的水锤危害
3、，介质回流的问题，提高了供水安全的可靠性。2.消除水水锤效果理想开泵、开阀、停泵、关阀都很平稳、无噪声、振动，阀门关闭严密，是非常理想的达到了一阀多用的目的。3.维护与安全由于其设备设计合理，维护简单，必购买零配件非常方便可靠;因电磁阀供电采用低电压24伏直流电，符合国家和国际电工委员会的要求。Electromagnetichydraulicslowclosingvalveinthepumphouseinthepracticalapplication是由中国闸阀网提供的国际阀门新闻，译文仅供参考。另外，中国闸阀网还提供相关产品搜索:闸阀型号、闸阀价格、闸阀技术、闸阀新闻、闸阀生产商等。原文:I
4、ntheoriginalthereisamanualpumpoutletvalve(thepumpcontrolvalve)andchecktoensurethepumplightloadstart,stopthepumpafterthepumptopreventmediumbackandeliminatetheinfluenceofthepump.However,duetomanualgatevalvepumpcontrolvalveinthepumpopens,stopstheprocessofmanuallyoperated,theoperationverylongtimeandrand
5、omness,labor-intensive;thesametime,frequentopeningandclosingmanualvalve,flangeleakageproblemisdifficulttoresolve,theoriginalinstantaneousvalveclosureoccursveryoftenCastSteelGateValvetheimpactofwaterhammer,waterpumppipenetworksecurityweaknesses.1.Electromagnetic-hydraulicslowclosingvalveDescription:T
6、hevalvetubeonitsownasthepowermediumpressure,inconventionalPLCcontrolandwiththeuseofelectroniccontroldevices,itcanbetoachieveautomaticcontrol,remotecontrol,centralizedcontrol,morecontrolandvalveintegrated.Therefore,simplifyingtheproceduresandreducelaborintensity,andasuddenpowerfailurethevalvewheninpo
7、wer,abletoautomaticallyslowdownaftershutdown.Astheclosingvalveprocessisdividedintoslowdownaftertwostagesand,therefore,caneffectivelypreventandeliminateharmfulwaterhammeronthepipenetworkequipmentdamage.2.UseEffect:1.Simplifythecontrolsystem:Usingelectromagnetic-hydraulicslowclosingvalve,therealizatio
8、nofmechatroniccontrol.Openthepump,pressthestartbuttonpump,waterpumpstartedrunning,whenthewaterpumptonormaloperation,thevalveautomaticallyopensthefirstslowafterthefast;offthepump,pressthestopbuttonpumps,valvesbegantoslowdownaftertheshutdown,Whenabouttocompletelyshutdown,thewaterPressureSealGateValvep
9、umpwillceaseoperation,asuddenpowerfailure,thevalveusingpipebacktomediumtoslowdownafterautomaticshutdown.Thevalvedoesnotrequireanyoutsidepowercanstartandstopthedirectcontrolofthewaterpump,waterpumpmotorinjusticeensurelight-loadstart,andcompletelysolvedduetoasuddenpoweroutagecausedbywaterhammerdamage,
10、mediumbackproblems,improvewatersupplythesafetyandreliability.2.EliminationofwateroftheresultsaresatisfactoryHammerOpenpump,openvalve,stopNonRisingStemResilientSeatedGateValves(RVHX,RVCX)thepump,closingvalveisverysmooth,nonoise,vibration,valveclosedtight,isidealtouseamulti-purposevalve.3.Maintenancea
11、ndSafetyBecauseofitsequipment,reasonabledesign,simplemaintenance,purchaseofsparepartswillbeveryconvenientandreliable;solenoidvalvepowersupplyforlowvoltage24VDC,inlinewithnationalandInternationalElectrotechnicalCommissionrequirements.历史上的今天:带压更换闸阀技术填补国内空白2010-04-01随机文章:双闸板闸阀的安装技巧2010-03-11闸阀的性能特点、安装与维护2010-02-04在选择闸阀时应注意的几个方面2010-02-04让自动喷水灭火系统做好过冬准备2009-11-04
