Intshayelelo yezinto zevalvu yebhola

Izixhobo zevalvu yebhola ziyahluka ukuze zivumelane neemeko zokusebenza ezahlukeneyo kunye neemfuno zemidiya. Ezi zilandelayo zezinye zezinto eziqhelekileyo zevalvu yebhola kunye neempawu zazo:

1. Izinto zesinyithi ezibunjiweyo

Intsimbi engwevu: ifanelekile emanzini, ngomphunga, emoyeni, kwigesi, kwioyile nakwezinye izinto ezinoxinzelelo oluqhelekileyo lwe-PN≤1.0MPa kunye nobushushu obuphakathi -10℃ ~ 200℃. Iimpawu ezisetyenziswa kakhulu yi-HT200, HT250, HT300, HT350.

Isinyithi esithambileyo: sifanelekile emanzini, ngomphunga, emoyeni nakwindawo yeoyile enoxinzelelo oluqhelekileyo lwe-PN≤2.5MPa kunye nobushushu obuyi-30℃ ~ 300℃. Iimpawu ezisetyenziswa kakhulu yi-KTH300-06, KTH330-08, KTH350-10.

I-Ductile iron: Ifanelekile kwi-PN≤4.0MPa, ubushushu -30℃ ~ 350℃ amanzi, umphunga, umoya kunye neoyile kunye nezinye izinto ezisetyenziswayo. Iindidi ezisetyenziswa rhoqo yi-QT400-15, QT450-10, QT500-7. Ukongeza, i-acid-resistant high-silicon ductile iron ifanelekile kwizinto ezisetyenziswayo ezingcolisayo ezinoxinzelelo oluqhelekileyo lwe-PN≤0.25MPa kunye nobushushu obungaphantsi kwe-120℃.

2. Intsimbi engatyiwayo

Ivalvu yebhola yentsimbi engagqwali isetyenziswa kakhulu kwimibhobho yoxinzelelo oluphakathi noluphezulu, enokumelana nobushushu obuphezulu, kwaye isetyenziswa kakhulu kwimishishini yeekhemikhali, i-petrochemical, i-smelting kunye neminye imimandla. Izinto zentsimbi engagqwali zinokumelana nokugqwala okuhle kunye namandla obushushu aphezulu, zilungele iintlobo ngeentlobo zemidiya egqwalisiweyo kunye nendawo enobushushu obuphezulu.

3. Izinto zobhedu

I-alloy yekopolo: Ifanelekile kwi-PN≤2.5MPa yamanzi, amanzi olwandle, ioksijini, umoya, ioyile kunye nezinye izinto, kunye nobushushu obuphakathi komphunga obuyi--40℃ ~ 250℃. Iindidi ezisetyenziswa rhoqo yi-ZGnSn10Zn2(ithusi letin), i-H62, i-Hpb59-1(ithusi), i-QAZ19-2, i-QA19-4(ithusi le-aluminium) njalo njalo.

Ubhedu olushushu kakhulu: lufanelekile kwimveliso yomphunga kunye nepetroleum enoxinzelelo oluqhelekileyo lwe-PN≤17.0MPa kunye nobushushu obuyi-≤570℃. Iimpawu ezisetyenziswa kakhulu yi-ZGCr5Mo, 1Cr5Mo, ZG20CrMoV njalo njalo.

4. Izinto zentsimbi yekhabhoni

Intsimbi yekhabhoni ifanelekile emanzini, ngomphunga, emoyeni, kwihydrogen, kwiammonia, kwinitrogen nakwiimveliso zepetroleum ezinoxinzelelo oluqhelekileyo lwe-PN≤32.0MPa kunye nobushushu obuphakathi kwe--30℃ ~ 425℃. Iindidi ezisetyenziswa rhoqo yi-WC1, WCB, ZG25 kunye nentsimbi yomgangatho ophezulu ye-20, 25, 30 kunye nentsimbi yesakhiwo ye-alloy ephantsi ye-16Mn.

5. Izinto zeplastiki

Ivalvu yebhola yeplastiki yenziwe ngeplastiki yokwenza izinto ezikrwada, efanelekileyo ekuthinteleni inkqubo yokuhambisa ngemidiya ebolayo. Iiplastiki ezisebenzayo kakhulu ezifana nePPS kunye nePEEK zihlala zisetyenziswa njengezihlalo zeevalvu zebhola ukuqinisekisa ukuba inkqubo ayidli ngamafutha ngenxa yeekhemikhali ezikhoyo ngokuhamba kwexesha.

6. Izinto zeseramikhi

Ivalvu yebhola yeseramikhi luhlobo olutsha lwezinto zevalvu, ezinokumelana nokugqwala okuhle kakhulu kunye nokumelana nokuguguleka. Ubukhulu beqokobhe levalvu budlula iimfuno zomgangatho wesizwe, kwaye izinto zeekhemikhali kunye neempawu zoomatshini zezinto eziphambili ziyahlangabezana neemfuno zomgangatho wesizwe. Okwangoku, isetyenziswa ekuveliseni umbane oshushu, intsimbi, ipetroli, ukwenza iphepha, ubunjineli bebhayoloji kunye neminye imboni.

7. Izixhobo ezikhethekileyo

Intsimbi enobushushu obuphantsi: ifanelekile kwi-nominal pressure PN≤6.4MPa, ubushushu obuyi-≥-196℃ ethylene, ipropylene, igesi yendalo engamanzi, i-nitrogen engamanzi kunye nezinye izinto. Iimpawu ezisetyenziswa kakhulu yi-ZG1Cr18Ni9, 0Cr18Ni9, 1Cr18Ni9Ti, ZG0Cr18Ni9 njalo njalo.

Intsimbi engagqwaliyo enganyangekiyo ye-asidi: ifanelekile kwi-nitric acid, i-acetic acid kunye nezinye izinto ezidityaniswe noxinzelelo oluqhelekileyo lwe-PN≤6.4MPa kunye nobushushu obuyi-≤200℃. Iimpawu eziqhelekileyo zezi ZG0Cr18Ni9Ti, ZG0Cr18Ni10 (ukumelana ne-nitric acid), ZG0Cr18Ni12Mo2Ti, ZG1Cr18Ni12Mo2Ti (ukumelana ne-asidi kunye ne-urea) njalo njalo.

Ngamafutshane, ukukhethwa kwezinto zevalvu yebhola kufuneka kumiselwe ngokweemeko ezithile zokusebenza kunye neemfuno eziphakathi ukuqinisekisa ukusebenza okuqhelekileyo kunye nokuzinza kwexesha elide kwevalvu.