Kutungamira kwekugadzirwa kwakachengeteka uye kwakabudirira kunosanganisira kubuda kweoiri, kudonha kwemvura, kubuda kweutsi, kubuda kwehutsi, kubuda madota, marasha kubuda, kubuda kwehupfu uye kubuda kwegasi, ndiko kwatinoti "kumhanya, kuburitsa, kudonha nekudonha". Nhasi, isu tinopfupikisa mamwe matanho ekudzivirira e "kumhanya, kuburitsa, kudonha nekudonha" kwekutarisa.
Ini nhanho dzekudzivirira dzemvura uye kudonha kweutsi kwemavharuvhu.
1. Mavharuvhu ose anofanira kunge ari pasi pemazinga akasiyana e hydrostatic test mushure mekupinda mumiti.
2. Mavharuvhu anoda kupatsanurwa kuti agadzirise anofanira kunge ari pasi.
3. Muchigadziro chekugadzirisa, zvakakosha kunyatsotarisa kana kuvhara kwakawedzerwa uye kana gland rekutakura rakasimbiswa.
4. Usati waiswa valve, tarisa kana pane guruva, jecha, iron oxide uye mamwe akawanda mukati mevhavha. Kana paine mamwe emhando dzepamusoro, dzinofanirwa kucheneswa isati yaiswa.
5. Mavharuvhu ese anofanirwa kuve akashongedzerwa negasket yegiredhi inoenderana isati yaiswa.
6. Paunenge uchiisa gonhi reflange, zvigadziro zvinofanira kusimbiswa. Paunenge uchiomesa mabhaudhi eflange, anofanirwa kusimbiswa mune symmetrical direction.
7. Muchigadziro chekuiswa kwevhavha, mavharuvhu ose anofanirwa kuiswa nenzira yakarurama maererano nehurongwa uye kudzvinyirira, uye kuiswa kwemaitiro uye kusanganiswa kunorambidzwa zvachose. Mavharuvhu ese anofanira kuverengerwa uye kurekodhwa zvinoenderana nehurongwa usati waiswa.
II Chengetedzo yekudonha kwemarasha akapwanyika.
1. Maflange ose anofanira kuiswa nezvinhu zvekuvhara.
2. Nzvimbo dzinowanzoita kudonha kwehupfu ivharuvhu yemarasha painopinza nekubuda nayo muporivhari, chekudyisa marasha, mugadzirisi weflange, uye zvikamu zvese zvine chinongedzo cheflange. Nokuda kwechikonzero ichi, zvikamu zvose zvezvishandiso zvevagadziri vese vanoda kudonha hupfu huchaongororwa zvakakwana, uye avo vasina kuisa chisimbiso vachawedzerwa kaviri, uye zvisungo zvichasimbiswa.
3. Matanho anotevera achatorwa pakudonhedza kwemarasha akaputswa pamutsetse wakasungwa wepombi yemarasha yakapwanyika.
3.1 tisati tasveta, nzvimbo yewelding inofanira kunyatsokwenenzverwa kuita metallic luster uye groove inodiwa pawelding.
3.2 pamberi pebutt joint, iyo butt joint clearance inofanira kuchengetedzwa uye kumanikidzwa butt joint inorambidzwa zvachose.
3.3 welding zvinhu zvinofanirwa kushandiswa nemazvo, uye preheating inofanirwa kuitwa sezvinodiwa mukutonhora kwemamiriro ekunze.
III Kudzivirira matanho ekudonha kweoiri system uye kubuda kwemafuta.
1. Panguva yekugadzwa kwepombi yeoiri, majoini ese eflange kana majoini emubatanidzwa ane screw thread anofanirwa kunge akashongedzerwa neoiri isingaite rabha pad kana mafuta isingaite asbestos pad.
2. Mapoinzi ekuvuza eoiri system anonyanya kutariswa pane flange uye kubatana neshinda, saka mabhaudhi anofanirwa kusimbiswa zvakaenzana pakuisa flange. Dzivirira kubuda kana kusununguka.
3. Muchigadziro chekuchenesa mafuta, vashandi vekuchengetedza vanofanira kugara vakanamatira kumusangano webasa, uye zvinorambidzwa zvachose kusiya chigaro uye kuyambuka chigaro.
4. Misa sefa yemafuta usati wachinja mafuta sefa pepa.
5. Pakuisa iyo yenguva pfupi mafuta sefa yekubatanidza pombi (yakakwirira-yakasimba epurasitiki transparent hose), mubatanidzwa unofanirwa kusungwa zvakasimba newaya yekutungamirira kudzivirira mafuta kubva pakusvetuka kubva mushure mekunge sefa yemafuta ichimhanya kwenguva yakareba.
IV. kudzivirira midziyo uye pombi fittings kubva kupupuma furo, kubudisa, kudonha uye kubuda, nematanho anotevera ekudzivirira:
Kune flange yekuisa chisimbiso gasket pamusoro pe1.2.5mpa, simbi inomonereka gasket ichashandiswa.
2.1.0mpa-2.5mpa flange gasket ichave asbestos gasket uye yakapendwa nehupfu nhema.
3.1.0mpa yemvura pombi flange gasket ichave yerabha gasket uye yakapendwa nehupfu nhema.
4. Kurongedzerwa kwepombi yemvura kuchava Teflon composite packing.
5. Tambo yeasbestos inoshandiswa muzvikamu zvekuvhara zveutsi uye mapombi emhepo yemarasha ichave yakamonyoroka uye yakawedzerwa kune yakabatana pamusoro zvakanaka panguva imwe chete. Izvo zvinorambidzwa zvachose kuwedzera nesimba mushure mekusimbisa screws.
V. matanho anotevera achatorwa kuti abvise kubuda kwemukati kwevhavha: (matanho anotevera achatorwa kudzivirira kubuda kwevhavha)
1. Isai pombi, chenesa iron oxide sikero uye mudhuri wemukati wepombi pasina sundries, uye simbisai kuti mukati mepombi kwakachena.
2. Iva nechokwadi chokuti mavharuvhu anopinda panzvimbo anofanira kunge ari pasi pe100% hydrostatic test.
3. Mavharuvhu ose (kunze kwevhavha inopinza) achaparadzaniswa kuti aongororwe, kukuya uye kugadzirisa, uye marekodhi uye mamaki achaitwa kuti aonekwe. Mavharuvhu akakosha achanyorwa zvakadzama kuti agamuchirwe kwechipiri, kuitira kuti asangane nezvinodiwa zve "stamping, kuongorora uye kurekodha".
❖ kana ikapotswa, nei?
(1) kusangana pakati pekuvhura nekuvhara zvikamu uye maviri ekuisa chisimbiso chechigaro chevharuvhu;
(2) chinzvimbo chakakodzera chekurongedza, dzinde uye bhokisi rekuisa;
(3) kubatana pakati pevharuvhu muviri nebhoneti
Iyo yaimbove yakadonha inonzi kudonha kwemukati, ndiko kuti, vharafu haina kuvharwa zvakasimba, izvo zvinokanganisa kugona kwevhavha kugura svikiro. Mavuza maviri ekupedzisira anodaidzwa kunzi leakage, ndiko kuti, kubvinza kwepakati kubva mukati kuenda kunze kwevharuvhu. Kudonha kunokonzera kurasikirwa kwezvinhu, kusvibiswa kwezvakatipoteredza uye kunyange tsaona.
Nguva yekutumira: Zvita-04-2019
