壓力容器水壓試驗(yàn)

1、壓力容器水壓試驗(yàn)壓力容器水壓試驗(yàn)壓力容器水壓試驗(yàn)HYDROSTATICPRESSURETESTPROCEDURE水壓試驗(yàn)程序General歸納AllcompletedvesselsfabricatedinaccordancewithGB150-1998shallsatisfactorilypasspressuretest.按GB150-1998鋼制壓力容器要求制造的壓力容器在達(dá)成后應(yīng)水壓試驗(yàn)合格。Ahydrostatictestshallbeconductedonallvesselsafterallfabricationhasbeencompleted,exceptforoperationwh

2、ichcouldnotbeperformedpriortothetestsuchasweldandpreparation,cosmeticgrindingonthebasematerialwhichdoesnotaffecttherequiredthickness.除了不可以開初進(jìn)行的焊縫表面、母材表面上不影響要求的厚度的外觀打磨辦理，水壓試驗(yàn)必然在容器制造達(dá)成，整體檢查合格后進(jìn)行。除了焊接、準(zhǔn)備工作以及在母材表面進(jìn)行的不影響要求厚度的外觀打磨辦理不可以開初進(jìn)行以外，水壓試驗(yàn)必然在容器制造達(dá)成后進(jìn)行。Ahydrostatictestshallbeconductedonallvesselsaft

3、erallexaminationshavebeenperformed,exceptthoserequiredafterthetest.壓力容器必然所有制造達(dá)成并經(jīng)檢查合格后，方可進(jìn)行水壓試驗(yàn)。AllhydrostatictestprocessshallconformtotherequirementsofGB150-1998andtherequirementsofSUPERVISIONREGULATIONSONSAFETYTECHNOLOGYOFPRESSUREVESSEL水壓試驗(yàn)程序應(yīng)符合GB150-1998鋼制壓力容器和壓力容器安全技術(shù)督查規(guī)程的要求。.Pressureindicatingg

4、agesusedinthepressuretestmustbeinaccordancewiththefollowingrequirements:水壓試驗(yàn)用壓力表嚴(yán)禁符合以下要求：Pressureindicatinggageshallbeconnecteddirectlytothevessel.Iftheindicatinggageisnotreadilyvisibletotheoperatorcontrollingthepressureapplied,anadditionalindicatinggageshallbeprovidedwhereitisvisibletotheoperatorth

5、roughoutthedurationofthetest.壓力表嚴(yán)禁直接與容器連接。假如容器上設(shè)置的壓力表不可以被壓力控制操作人員很簡單的看到，那么應(yīng)在操作者可以顯然清楚的部位增添一個(gè)壓力表，以便于進(jìn)行全過程的壓力控制。Pressureindicatinggagesusedintestingshallhavearangeoveraboutdoubletheintendedmaximumtestpressure,butinnocaseshalltherangebelessthannormorethan3timestestpressure.壓力表的量程一般應(yīng)為最大試驗(yàn)壓力的2倍，在任何狀況下都不可

6、以超出試驗(yàn)壓力的1.53倍。壓力表量程不得少于試驗(yàn)壓力的倍，不得高于試驗(yàn)壓力的3倍。Allgagesshallbecalibratedagainstastandarddeadweighttesteroracalibratedmastergage.Gagesshallberecalibratedatanytimewhenthereisreasontobelievethattheyareinerror.Thegagesshallbeusedwithintheeffectiveperiodofsixmonths.所有試驗(yàn)用的壓力表應(yīng)采納壓力表試驗(yàn)器或經(jīng)校準(zhǔn)的校準(zhǔn)用優(yōu)秀儀表進(jìn)行校驗(yàn)。不論何時(shí)發(fā)現(xiàn)試驗(yàn)用

7、的壓力表存在問題，都應(yīng)重新進(jìn)行校驗(yàn)。壓力表校驗(yàn)合格后的使用有效期為6個(gè)月。Allreinforcingpadweldshallbetestedbyairtighttestandnoleakagebefoundformanyjoints.Thevalueofairtightshallbebetweenand.0.5MPa.容器上的補(bǔ)強(qiáng)圈應(yīng)通入MPa的壓縮空氣對(duì)所有焊縫連接部位進(jìn)行氣密性檢查合格。4.PreparationforTesting試驗(yàn)準(zhǔn)備Ventsshallbeprovidedatallhighpointsofthevesselinthepositioninwhichitistobet

8、estedtopurgepossibleairpocketswhilethevesselisbeingfilled.容器頂部所有高點(diǎn)都應(yīng)設(shè)置排氣口，以便于充水過程中將容器內(nèi)部的空氣排放干凈。Priortohydrostaticpressuretest,theinsideandoutsideofthevesselshouldgiveagoodcleaningtoremoveoil,grease,paintandotherdirt.Theexaminedareaoftheinsideandoutsideofthevesselshallbekeptclean,withoutanydirtwhichi

9、nfectsthetest.Thesurfacemustbedried.InternalInspectionReportshouldbesubmittedforapprove.水壓試驗(yàn)前，容器內(nèi)、外應(yīng)清理干凈，除去所有的油污、鐵銹等污垢。試驗(yàn)過程中所有試驗(yàn)范圍內(nèi)的容器內(nèi)、表面面應(yīng)保持干凈，沒有影響試驗(yàn)的污物。容器的表面面必然保持干燥。容器內(nèi)部檢查報(bào)告應(yīng)提交贊同。Beforeapplyingpressure,thetestequipmentshallbeexaminedtoseethatitistightandthatalllowpressurefillinglinesandotherappur

10、tenancesthatshouldnotbesubjectedtothetestpressurehasbeendisconnected.水壓試驗(yàn)前，應(yīng)檢查試驗(yàn)設(shè)備能否連接緊固，檢查所有不屬于試驗(yàn)系統(tǒng)的低壓填補(bǔ)物及其余隸屬物能否已經(jīng)分別。Beforeapplyingpressure,thetemperatureofthetestmediumandthewalltemperatureofthevesselshallbemeasuredwiththethermometer.Thetest.pressureshallbeappliedafterthevesselanditscontentsareat

11、aboutthesametemperature.水壓試驗(yàn)前，應(yīng)采納溫度計(jì)丈量試驗(yàn)液體和容器器壁的溫度。當(dāng)容器壁溫與試驗(yàn)液體溫度一致時(shí)，方可對(duì)容器進(jìn)行加壓。Duringtestingthetemperatureofthevesselandtestmediumshallnotbelowerthan5normorethan40.水壓試驗(yàn)時(shí)期，容器器壁和試驗(yàn)液體的溫度應(yīng)控制在540之間。Temperaturerecordshallmeasurethetestmediumtemperaturenottheairtemperature.Hydrotestingwatershallbeclean,fresh

12、water.溫度應(yīng)丈量試驗(yàn)液體的溫度而非氣溫。試驗(yàn)液體應(yīng)是干凈、新鮮的水。Thereinforcementplatesoutsidethevesselsandtheweldoftheconnectingpipeshallpasstheleaktestingbeforedoingpressuretest.水壓試驗(yàn)前，容器的補(bǔ)強(qiáng)圈與容器殼體、接收的焊縫應(yīng)經(jīng)氣密性檢查合格。Priortohydrostaticpressuretest,blastingandpaintingworkshallnotbecarriedout.水壓試驗(yàn)前不同樣樣意進(jìn)行噴砂涂漆工作。Serviceboltsandgasket

13、sshallnotbeusedforhydrostaticpressuretesting.Aftertestserviceitemswillbereinstalled.水壓試驗(yàn)用螺栓、墊片等不可以使用正式的設(shè)備用零件，水壓試驗(yàn)合格后應(yīng)方可安裝正式螺栓、墊片。shallbeatleastonehighpoint&onelowpointpressuregaugepervessel.容器上最少在頂部和底部各設(shè)置一個(gè)壓力表。5.StandardHydrostaticTest標(biāo)準(zhǔn)的水壓試驗(yàn).TestPressure試驗(yàn)壓力Forinternalpressurevessel,thetestpressure

14、shallbeatleastequaltoTatPeverypointinthevessel.承受內(nèi)壓的容器，容器內(nèi)部任何部位的試驗(yàn)壓力應(yīng)大于等于PT。PT(min.)=P(ST)min.SDWhere:PT(min.)=minimumtestpressure最小試驗(yàn)壓力,MPaP=designpressure設(shè)計(jì)壓力,MPaST=thestressvalueforthetesttemperatureonthevessel試驗(yàn)溫度下的許用應(yīng)力,MPaSD=thestressvalueforthedesigntemperatureonthevessel設(shè)計(jì)溫度下的許用應(yīng)力,Mpa(ST)min.

15、=thelowestratio(forthematerialsofwhichthevesselisSDconstructed)ofthestress許用應(yīng)力的最小比值（容器所使用的資料）ApplicationofPressure試驗(yàn)過程Thetestpressureshallbegraduallyincreaseduntiltherequiredtestpressureisreachedandheldforaminimumofonehour.Thenthepressureshallbereducedtoavaluenotlessthanfour-fifthofthetestpressurean

16、dheldforasufficienttimetopermitinspectionofthevessel.壓力應(yīng)緩慢上漲直至要求的試驗(yàn)壓力后，保壓1小時(shí)。此后將壓力降至試驗(yàn)壓力的80%，保持足夠的時(shí)間進(jìn)行檢查。6.Examination檢查Thevisualinspectionofthevesselshallbeperformedinaccordancewiththefollowingrequirements:.Forthehydrostatictestthevisualinspectionofalljointsandconnectionsinthevesselshallbemadeatapr

17、essureequaltofour-fifthoftherequiredtestpressure.Leakageisnotallowedatthetimeoftherequiredvisualinspection.Afterthetest,theExaminershallfillintheHydrostaticTestReport,reviewedbyQCEngineerandacceptedbyOwnersappointedinspector.容器的目視檢查應(yīng)按以下要求進(jìn)行：當(dāng)壓力降至要求試驗(yàn)壓力的80%后，對(duì)付容器上所有焊縫及連接部位進(jìn)行檢查，不同樣樣意有泄漏現(xiàn)象。水壓試驗(yàn)合格后，檢驗(yàn)人員應(yīng)提交水壓試驗(yàn)報(bào)告，由QC工程師審查并交業(yè)主指定的督查檢驗(yàn)人員確認(rèn)。7.DrainandDry排液干燥Afterthefinalhydrostatictest,vesselss