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Q

The working principle of vacuum pump

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Vacuumpumpbasicallycanbedividedintotwotypes,namelygascapturepumpandgastransferpump.Itiswidelyusedinmetallurgy,chemicalindustry,food,electroniccoatingandotherindustries. Alongwiththevacuumapplicationdevelopment,thevacuumpumptypehasdevelopedmanykinds,itspumpingspeedfromseveraltenthsofaliterpersecondtoseveralhundredthousand,millionsofliterspersecond.Withvacuumtechnologyinthefieldofproductionandscientificresearchtotherequirementsoftheapplicationscopeofthepressureismoreandmorewide,mostlyneedconsistsofseveralcommonafterextractionofvacuumpumpvacuumextractionsystemcanmeettherequirementsofproductionandscientificresearchprocess,becausethevacuumapplicationdepartmentinvolvedintheworkpressurerangeisverywide,soanyonetypeofvacuumpumpcouldnotfullyapplytoallworkingpressurerange,canonlyworkaccordingtothedifferentpressurerangeanddifferentworkrequirements,usingdifferenttypesofvacuumpump.Inordertobeconvenienttouseandmeettherequirementsofvariousvacuumprocesses,vacuumpumpsaresometimescombinedaccordingtotheirperformancerequirementsandappliedintheformofunits.   Commonlyusedvacuumpumpsincludedryscrewvacuumpump,waterringpump,reciprocatingpump,slidevalvepump,rotaryvanepump,rootspumpanddiffusionpump,etc.,whichareessentialmainpumpsintheapplicationofvacuumprocessinvariousindustriesofChina'snationaleconomy.Inrecentyears,withthecontinuousandrapiddevelopmentofChina'seconomy,thedownstreamapplicationindustryofvacuumpumphasmaintainedarapidgrowthmomentum.Atthesametime,drivenbythecontinuousexpansionofvacuumpumpapplicationfieldandotherfactors,China'svacuumpumpindustryhasachievedasustainedandstablerapiddevelopment.
2018-09-29
Q

The compressor

A
Compressor, is a kind of driven fluid machinery that elevates low-pressure gas into high-pressure gas, and is the heart of the refrigeration system. It inhales the refrigerant gas of low temperature and low pressure from the suction pipe, drives the piston through the motor operation to compress it, and discharge the refrigerant gas of high temperature and high pressure to the exhaust pipe, providing power for the refrigeration cycle. Thus realize compression, condensation (heat release), expansion, evaporation (heat absorption) of the refrigeration cycle. Compressor is divided into piston compressor, screw compressor, centrifugal compressor, linear compressor. The article introduces the working principle, classification, accessories, specifications, operation requirements, production, common faults, environmental protection requirements, selection principles, installation conditions and development trend of the compressor.
2018-09-29