Mutemo uyu unoshanda pakuiswa kwemavharuvhu egedhi, mavharuvhu ekumisa, mavharuvhu ebhora, mavharuvhu ebhururu uye mavharuvhu ekuderedza kumanikidzwa mumiti yepetrochemical. Kuiswa kwemavharuvhu ekutarisa, mavharuvhu ekuchengetedza, mavharuvhu ekutonga uye misungo yemhepo kunofanira kureva mitemo yakakodzera. Mutemo uyu haushande pakuiswa kwemavharuvhu pamapombi emvura epasi pevhu uye ekudhonza mvura.

1 Nheyo dzekurongeka kwemavharuvhu

1.1 Mavharuvhu anofanira kuiswa zvichienderana nerudzi nehuwandu hunoratidzwa padhayagiramu yekuyerera kwepombi nemidziyo (PID). Kana PID iine zvinodiwa zvakananga zvenzvimbo yekuisa mamwe mavharuvhu, anofanira kuiswa zvichienderana nezvinodiwa pakuita basa.

1.2 Mavharuvhu anofanira kurongwa munzvimbo dziri nyore kuwana, kushanda uye kugadzirisa. Mavharuvhu ari pamitsara yemapombi anofanira kurongwa nenzira iri pakati, uye mapuratifomu ekushanda kana maerekitori anofanira kufungwa nezvawo.

2 Zvinodiwa pakuisa mavharuvhu

2.1 Kana nzira dzemapaipi dzinopinda nekubuda, mudziyo wacho wakabatana nemapaipi makuru ari panzira dzemapaipi dzefekitori yese,mavharuvhu ekudzimainofanira kuiswa. Nzvimbo yekuisa mavharuvhu inofanira kunge iri pakati penzvimbo yemudziyo, uye mapuratifomu ekushanda anodiwa kana mapuratifomu ekugadzirisa anofanira kuiswa.

2.2 Mavharuvhu anoda kugara achishandiswa, achigadziriswa uye achitsiviwa anofanira kunge ari munzvimbo dziri nyore kusvika pasi, pachikuva kana pamanera.Mavharuvhu emagetsi nemagetsiinofanirawo kuiswa munzvimbo dziri nyore kusvika.

2.3 Mavharuvhu asingade kushandiswa nguva dzose (anoshandiswa chete pakutanga nekumira) anofanirawo kuiswa munzvimbo dzinogona kuiswa maerekitori enguva pfupi kana asingakwanise kushandiswa pasi.

2.4 Kureba kwepakati pevhiri reruoko kubva panzvimbo yekushanda kuri pakati pe750 ne1500mm, uye kukwirira kwakakodzera ndiko

1200mm. Kureba kwekuisa mavharuvhu asingade kushandiswa nguva nenguva kunogona kusvika 1500-1800mm. Kana kukwirira kwekuisa kusingaderedzwe uye kushanda nguva nenguva kuchidikanwa, puratifomu kana danho rinofanira kuiswa panguva yekugadzirwa. Mavharuvhu ari pamapaipi nemidziyo yemidziyo ine njodzi haafanirwe kuiswa mukati mehurefu hwemusoro wemunhu.

2.5 Kana kukwirira kwepakati pevhiri revharuvhu kubva pamusoro pebasa kwapfuura 1800mm, basa re sprocket rinofanira kuiswa. Kureba kwecheni ye sprocket kubva pasi kunofanira kunge kuri 800mm. Chiredzo che sprocket chinofanira kuiswa kuti chiturike mugumo wezasi wecheni pamadziro kana pillar iri pedyo kudzivirira kukanganisa nzira.

2.6 Pamavharuvhu akaiswa mugomba, kana chifukidziro chegomba chichigona kuvhurwa kuti chishande, vhiri reruoko revharuvhu harifanirwe kunge riri pasi pe300mm pasi pechifukidziro chegomba. Kana riri pasi pe300mm, tsvimbo yekuwedzera vharuvhu inofanira kuiswa kuti vhiri rayo rive mukati me100mm pasi pechifukidziro chegomba.

2.7 Kune mavharuvhu akaiswa mumugero, kana achida kushandiswa pasi, kana mavharuvhu akaiswa pasi pevhu repamusoro (puratifomu),tsvimbo yekuwedzera vharuvhu inogona kuiswakuti iendeswe kuchivharo chemugero, pasi, uye pachikuva chekushanda. Chibato chetsvimbo yekutambanudza chinofanira kunge chiri 1200mm kubva panzvimbo yekushandisa. Mavharuvhu ane dhayamita shoma kana yakaenzana neDN40 uye tambo dzinobatanidza hadzifanirwe kushandiswa uchishandisa masprocket kana matsvimbo ekutambanudza kudzivirira kukuvara kwevharuvhu. Kazhinji, kushandiswa kwemasprocket kana matsvimbo ekutambanudza kushandisa mavharuvhu kunofanira kuderedzwa.

2.8 Kureba pakati pevhiri reruoko revharuvhu rakarongwa rakatenderedza puratifomu nemucheto wepuratifomu hakufanirwe kupfuura 450mm. Kana tsinde revharuvhu nevhiri reruoko zvikatambanuka kusvika pamusoro pepuratifomu uye kukwirira kuri pasi pe2000mm, hazvifanirwe kukanganisa mashandiro nekufamba kwemushandisi kudzivirira kukuvara kwemunhu.

3 Zvinodiwa pakuiswa kwemavharuvhu makuru

3.1 Kushanda kwemavharuvhu makuru kunofanirwa kushandisa nzira yekutumira giya, uye nzvimbo inodiwa yenzira yekutumira giya inofanira kufungwa nezvayo pakuisa. Kazhinji, mavharuvhu ane saizi yakakura kupfuura aya anotevera anofanira kufunga nezvekushandisa vharuvhu ine nzira yekutumira giya.

3.2 Mavharuvhu makuru anofanira kunge aine mabhuraketi padivi rimwe chete kana maviri evharuvhu. Chibato hachifanirwe kuiswa papombi pfupi inoda kubviswa panguva yekugadzirisa, uye rutsigiro rwepaipi harufanirwe kukanganiswa kana vharuvhu yabviswa. Daro riri pakati pebhuraketi neflange yevharuvhu rinowanzo kuve rakakura kupfuura 300mm.

3.3 Nzvimbo yekuisira mavharuvhu makuru inofanira kunge iine nzvimbo yekushandisa crane, kana kufunga nezvekuisa mbiru yekurembera kana danda rekurembera.

4 Zvinodiwa pakuisa mavharuvhu pamapombi akatwasuka

4.1 Kunze kwekunge zvichidikanwa neimwe nzira, vhiri revharuvhu rakaiswa papombi yakatwasuka harifanirwe kutarisa pasi, kunyanya vhiri revharuvhu riri papombi ine njodzi haribvumidzwe kutarisa pasi. Kurongeka kwevhiri revharuvhu kunoonekwa nenzira inotevera: yakatwasuka kumusoro; yakatwasuka; yakatwasuka kumusoro ne 45° kuruboshwe kana kurudyi; yakatwasuka pasi ne 45° kuruboshwe kana kurudyi; kwete yakatwasuka pasi.

4.2 Pamavharuvhu anokwira akaiswa akatambarara, kana vharuvhu yavhurwa, tsinde yevharuvhu haifanirwe kukanganisa nzira, kunyanya kana tsinde yevharuvhu iri pamusoro kana pabvi remushandisi.

5 Zvimwe zvinodiwa pakugadzirisa mavharuvhu

5.1 Mitsetse yepakati pemavharuvhu ari pamapaipi akafanana inofanira kurongeka zvakanyanya sezvinobvira. Kana mavharuvhu akarongwa ari padyo, daro riri pakati pemavhiri eruoko harifanirwe kunge riri pasi pe100mm; mavharuvhu anogonawo kutenderedzwa kuti aderedze daro riri pakati pemapaipi.

5.2 Mavharuvhu anofanirwa kubatanidzwa kumuromo wepombi yemidziyo panguva iyi anofanira kubatanidzwa zvakananga kumuromo wepombi yemidziyo kana dhayamita yemhando yepamusoro, kumanikidzwa kwemhando yepamusoro, rudzi rwekuvharira, nezvimwewo zvakafanana kana kuti zvinoenderana neflange yemuromo wepombi yemidziyo. Kana vharuvhu iine flange yakakombama, nyanzvi yemidziyo inofanira kukumbirwa kugadzira flange yakakombama pamuromo wepombi inoenderana.

5.3 Kunze kwekunge paine zvinodiwa zvakakosha zvemaitiro acho, mavharuvhu ari pamapombi epasi emidziyo yakaita semashongwe, ma reactor, uye magaba akamira haafanirwe kurongwa mujira.

5.4 Kana pombi yebazi yaburitswa kubva papombi huru, vharuvhu yayo yekudzima inofanira kunge iri pachikamu chakatarwa chepombi yebazi pedyo nemudzi wepombi huru kuitira kuti mvura ikwanise kuyerera kumativi ese evharuvhu.

5.5 Vharuvhu yekudzima pombi yebazi iri pagallery yepombi haiwanzo shandiswa (inoshandiswa chete pakupaka mota kuti igadziriswe). Kana pasina manera anogara aripo, nzvimbo yekushandisa manera enguva pfupi inofanira kufungwa nezvayo.

5.6 Kana vharuvhu ine simba guru yavhurwa, simba rekutanga rinova guru. Chibato chinofanira kuiswa kuti chitsigire vharuvhu uye kuderedza kushushikana kwekutanga. Kureba kwekuisa kunofanira kuva 500-1200mm.

5.7 Mavharuvhu emvura yekudzima moto, mavharuvhu emhepo yekudzima moto, nezvimwewo munzvimbo yemuganhu wemudziyo anofanira kuparadzirwa uye munzvimbo yakachengeteka iri nyore kuti vanoishandisa vasvike kana tsaona ikaitika.

5.8 Boka remavharuvhu epombi yekugovera steam inodzima moto yechoto chekupisa rinofanira kunge riri nyore kushandisa, uye pombi yekugovera haifanirwe kunge iri pasi pe7.5m kubva pachigadziko chechoto.

5.9 Pakuisa mavharuvhu ane shinda papombi, chisungo chinochinjika chinofanira kuiswa pedyo nevharuvhu kuti zvive nyore kupatsanura.

5.10 Mavharuvhu eWafer kana mavharuvhu eButterfly haafanirwe kubatanidzwa zvakananga kune maflange emamwe mavharuvhu nemafitting epombi. Pombi pfupi ine maflange kumativi ese inofanira kuwedzerwa pakati.

5.11 Vharuvhu haifanirwe kuiswa mutoro wekunze kudzivirira kushushikana kwakanyanya uye kukuvara kwevharuvhu