Usoro njikwa mmiri ọ bụla, Site na ọkpọkọ ụlọ ọrụ dị mgbagwoju anya, valves bụ ihe niile dị mkpa. Agbanyeghị, Mgbe ekpughere valf ndị a na mgbasa ozi corrosive ma ọ bụ gburugburu ya, Corrisonion abụrụla onye na-eme ihe na-eyi egwu. Ya mere, ịhọrọ nke ọma na iji a varinoon na-eguzogide vaịn abụghị naanị mkpebi ọrụ aka mana ọ bụ itinye ego dị oke mkpa na nchekwa, oru oma, na ogologo oge nke usoro gị niile.

Ka BMG were gị site na nyocha nke na-enyocha ihe ndị dị mkpa maka ịhọrọ valf na-eguzogide, na inye mmebi nke njiri mara, uru, oriri, na ngwa nke mainstream vaịn na-eguzogide na-eguzogide, ọla ọcha ọla na-eguzogide, na plastik corrisonion na-eguzogide vaịn. Iji nyere gị aka ịme mkpebi kachasị mara n'etiti m nke nhọrọ.

1. Kedu ihe bụ valv corrosion na gịnị kpatara o ji dị oke egwu?

Valv corrosion bụ ihe na-emebi emebi nke ihe na-enye valvụ n'ihi mmeghachi omume kemịkalụ na gburugburu ya (E.G., mmiri mmiri, Ọnọdụ mpụga). Mmebi a na-ewe ọtụtụ ụdị, na ịghọta ha bụ nzọụkwụ mbụ na nhọrọ dị mma.

Corniondị valve corrosion

• Edoro corrosion: Corrosion mere ka ọ dị iche iche nke valve ahụ na-ekpughe. Enwere ike ịhụ ụzọ nke valvụ ahụ ma buru amụma, Ọ nwere ike iduga gị nke ọma nke mgbidi ahụ, Ibelata ikike nrụgide ya.
• Galvanic corrosion: Na - eme mgbe mital abụọ na - efe efe na kọntaktị na ọnụnọ nke electrolyte (Dị ka mmiri). Obere igwe na-adịghị mma na-aghọ mkpọchi ma na-agbagharị na ọnụego ya. Nke a bụ ihe dị oke mkpa mgbe ị na-agwakọta valvs na pipes nke ihe ọla dị iche iche na sistemụ.
• Corrosion: Obere ụdị nke corrosion nke na-emepụta obere oghere ma ọ bụ “olulu” N'ime ọla. E zoro ya na mbibi nke ukwuu; enweghị ike ịchọpụta na enweghị nlezianya, ma na-akpata ya n'ikpeazụ.
• Crarice corrosion: N'ihi ihe dị iche na itinye uche na oxygen na na mpụga creavice, mmeghachi omume electromical nke a (A na-agwọ ọrịa) bute. Nke a na-eme ka mgbasa nke ígwè, nke mere emesia na ndi ozo (dị ka chloride eons) Iji mee ka corrosion.
• Didinfection: Usoro akọwapụtara brass valf. N'ọnọdụ nwere eth, zinc na ọla na-acha uhie uhie na-ahọrọkarị, na-ahapụ ụlọ ọrụ ọla kọpa, nke na - ebelata ike nke valvụ.

Nsonaazụ siri ike nke Korosion

• Sistemụ Sistemu: Na-eduga na ọnwụ nke ọkara ahụ na pipeline ma ọ bụ, kanjo, Ntọhapụ nke ihe na-egbu egbu ma ọ bụ ihe dị ize ndụ, na-akpata ihe na-akpata nchebe na mmetọ gburugburu.
• Ọdịdị arụmọrụ: Corrosion ike clog valvụ, Mmụba nrụgide ma belata ọsọ ọsọ, Ọbụnadịghị imeghe ma ọ bụ mechie nke ọma, ma kpaghasị usoro arụmọrụ niile.
• Ebe ndu di ndu: Na-ebelata ndụ ọrụ nke valvụ, na-abawanye na-emechi anya na ụgwọ mmezi.
• Ihe nchebe: Corrosonion mejupụtara ihe ndị metụtara nrụgide nwere ike ibute nsonaazụ siri ike, Ọdachi dị njọ n'okpuru nrụgide dị elu.

Ghọta ihe egwu ndị a na-eme ka ọ doo anya ihe kpatara ịhọrọ a varinoon na-eguzogide vaịn nke dabara na ọnọdụ arụmọrụ gị dị oke mkpa.

2. Ihe ndị dị mkpa maka ịhọrọ valvụ na-eguzogide

Tupu ịhọrọ ihe kwesịrị ekwesị, ị ga-enyocha ọnọdụ na saịtị ahụ, ọ ga-eche ihu. Ndị a bụ ihe isi anọ na-atụle:

1. Ngwongwo mmiri: Nke a bụ isi ihe na-ekpebi ihe na-enye valvụ.
   • Ngwakọta kemịkalụ: Bụ acid acid, alukali, nnu, Ihe Mgbanwe Ọdịnaya, ma ọ bụ ngwaahịa mmanụ ala? Gịnị bụ ntinye uche ya? Ọmụmaatụ, PVC nwere ezigbo nguzogide na otutu acid na ntọala mana ọ bụghị maka ụfọdụ sonvents ụfọdụ.
   • Temperacho: N'ọtụtụ oge, Okpomoku di elu nwere ike ime ka otutu uzoriri abuo ma metụta ihe eji eme ihe. Dị ka ọmụmaatụ, CPVC nwere nnabata okpomọkụ dị elu karịa PVC, Ọ bụ ezie na valves metal nwere ike ijikwa okpomọkụ dị elu karịa valves plastik.
   • Okwukwa: Ngwaọrụ a ga-enwe ike iguzogide nrụgide kachasị arụ ọrụ. Valvent vanivant na-enwe ogo nrụgide dị ala karịa valf. Mgbe a na-anwale valt na ụlọ ọrụ, A na-anwale ha na 1.5 oge nrụgide ndị a lekwasịrị anya iji hụ nchekwa n'oge ojiji.
   • Ọnụego na Abrasives: Oke ikuku na-asọpụta ma ọ bụ ọnụnọ nke ihe siri ike na ọkara nwere ike ibute ọgba aghara-corrosion, chọrọ ihe dị ka ọla na-eguzogide dị ka ọla ma ọ bụ plastik injin.
2. Ihe Ndị Isi gburugburu:
   • Gburugburu mpụga ebe etinyere valvụ ahụ dị mkpa. Ọmụmaatụ, A na-etinye valves na mpaghara mmiri ma ọ bụ nke dị nso na osisi osisi mkpa iguzogide nnu mmiri ma ọ bụ ikuku ikuku, ime ọla ọcha ọla na-eguzogide Nhọrọ dị mma na ọnọdụ ndị a. Maka ngwa n'èzí, Ntugide UV na-echekwa bụkwa echiche; ụfọdụ plastics na-achọ mgbakwunye nke mmachi.
3. Valt allical chọrọ:
   • Karịrị nguzogide corrosion, valvụ ahụ ga-enwerịrị ike zuru oke, ike, na-eyi nguzogide na -echekwa ngwa ngwa, Nrụgide Pipeline, na ịma jijiji. Valves ọla dị mma karịa valt plastik na nke a.
4. Valves na-eri na ụzọ ndụ ha:
   • Ego na-azụ ahịa bụ ezigbo nchebara echiche dị oke mkpa, mana ọ gaghị abụ naanị otu. Ga-enyocha uru ogologo oge nke valvụ, gụnyere ndụ ọrụ ya tụrụ anya, oge mmezi, na-akwụ ụgwọ na-akwụ ụgwọ site na ọdịda. Mgbeufodu, Ọ dị oke ọnụ karịa, Valvelụ dị elu ga-eweta nloghachi kachasị ukwuu na itinye ego site na ntụkwasị obi na mmezi ala.

3. Nchọpụta dị omimi nke ihe dị omimi

Osote, Anyị ga-elekwasị anya na ihe atọ dị na akụrụngwa corsonion - brass, oze, na plastik-maka nyocha zuru oke.

1. Vaịn na-eguzogide na-eguzogide

Brass bụ alloy ọla kọpa na zinc ma bụrụ otu n'ime ihe ndị a na-ahụkarị, Karịsịa na ebe obibi na ngwa azụmahịa.

• Corrosion iguzogide: Na-enye ezigbo nguzogide na mmiri na-anọpụ iche, Igwe na-adịghị corrosive, na gas. Isi ya bụ adịghị ike na-adịghị mma na-emegide Amonia, atytylene, na ọtụtụ acid. Ọ bụkwa suscification na ụfọdụ ọnọdụ mmiri.
• Uru: Ọnụ ahịa dị ala, oke ọnụ ahịa, ezigbo mma, na ike zuru oke maka ọtụtụ ngwa ọkọlọtọ.
• Ọghọf: Obere mgbochi mmiri na ihe egwu nke Dezincification.

Akara nke na-eme ihe nkiri

• C36000 (Brass na-egbu egbu): Otu n'ime ihe eji eme ihe eji eme ihe, A maara maka ngwa ngwa ya pụtara ìhè, Ime ka ọ dị mma maka eriri na valve gị. Agbanyeghị, ya corsosion na-eguzogide, Ma a naghị atụ aro ya maka mmiri cerive ebe dezinification bụ ihe egwu.
• C27450 (Nkwagide na-eguzogide / Udiri na-efu efu): Kpamkpam na-emeghe maka usoro mmiri nwere ike. A na-ahazi alloy (Ọtụtụ mgbe, obere mgbakwunye nke Arsenic, phosphorus, ma ọ bụ A na-achị ya) igbochi dezisificafication. Ọ na-ekweta na iwu enweghị iwu, na-eme ya nhọrọ kachasị mma maka valvs na mma na kọntaktị na mmiri ike.

Ihe onwunwe	Alloy mba.	Cu%	PB%	Sn%	ZN%	Fey	P%	Na%	Al%
Bras	CW511	61-63	0.2	0.1	Ime ihe.	0.1	–	0.1	0.05
Bras	CW602N	61-63	1.7-2.8	0.1	Ime ihe.	0.1	–	0.3	0.05
Bras	Cw611n	57-60	0.8-1.6	0.3	Ime ihe.	0.3	–	0.3	0.05
Bras	Cw614n	57-59	2.5-3.5	0.3	Ime ihe.	0.3	–	0.3	0.05
Bras	Cw617n	57-59	1.6-2.5	0.3	Ime ihe.	0.3	–	0.1	0.05
Bras	Mkpuru nki 132	60-63	1.7-2.8	0.2	Ime ihe.	0.1	–	–	–
Bras	C46500	59-62	0.2	0.5-1	Ime ihe.	0.1	–	–	–

2. Ọla ọcha ọla na-eguzogide

Ọla kọpa bụ onye na-ahụ maka ọla kọpa na tin mana enwere ike ịnwe ihe ndị ọzọ. Ya na-eguzogide nguzogide na-adịkarị karịa nke ọla.

• Corrosion iguzogide: Nwere oke iguzogide oke osimiri na nnu, na-enweta ya na aha otutu “Mmanụ mmiri.” Ọ na-emegide usoro kemịkalụ karịa ọla ma nwee ike iguzogide corrosion.
• Uru: Ebumnuche kachasị elu nke mmiri, Ike dị elu, na-eyi na-eguzogide karịa ọla.
• Ọghọf: Achịcha Bronze dị elu karịa ọla.

Akara akara nke ọla

• C95400 (Ọla edo nke aluminom): Alloy ike na-enwe aluminom, igwe, na nickel. Ọ na-enye oke nguzokwa ọ bụghị naanị n'oké osimiri kamakwa na-ezere-corrosion na cavitation n'ọtụtụ gburugburu acidic. N'ihi ike ya dị elu ma na-eyi nguzogide, A na-ejikarị ya na valves nke dị arọ, Ngwa nke injinụ na-ebili na mmiri kemịkalụ.
• C93200 (Edughi tin ọla / Sai 660): Makwaara dị ka ọla kọpa. Alloy a enweela ihe mgbochi na-emegide Njirimara na Nkazi. Mgbe eji ihe eji eme ihe di ala, Karịsịa na ngwa chọrọ ụfọdụ lubrity. Ya na-eguzogide nguzozi, Kwesịrị ekwesị maka mmiri General, ite mmanu, na sistemụ ikuku.

Ihe onwunwe	Alloy mba.	Cu%	PB%	Sn%	ZN%	Fey	P%	Na%	Al%
Ọla	C83600	84-86	4.0-6.0	4.0-6.0	4.0-6.0	0.3	0.05	1	0.005
Ọla	C89325	84-88	0.1	9.00-11	1	0.15	0.1	1	0.005
Ọla	C89831	87-91	0.1	2.70-3.7	2.00-4	0.3	0.05	1	0.005
Ọla	C89833	86-91	0.09	4.00-6	2.00-6	0.3	0.05	1	0.005
Ọla	C8985	85-89	0.09	6.00-7.5	2.00-4	0.2	0.1	1	0.005
Ọla	C89844	83-86	0.2	3.00-5	7.00-10	0.3	0.05	1	0.005
Ọla	C90300	86-89	0.3	7.50-9	3.00-5	0.2	0.05	1	0.005
Ọla	C90800	85-89	0.25	11.00-13	0.25	0.15	0.3	0.5	0.005
Ọla	C90810	Ime ihe.	0.25	11.00-13	0.3	0.15	0.15-0.8	0.5	0.005

3. Plastik corrisonion na-eguzogide vaịn

Na mmepe nke ihe eji eme ihe, Vastics plastik ejirila ihe dị mkpa na ụlọ ọrụ ọgbara ọhụrụ n'ihi nguzogide kemịkal ha.

• Ihe ndị a na-ahụkarị na njiri mara:
  • PVC valves(Polyvinyl chloride): Ihe kachasị na-ahụkarị ọkụ. Ọ nwere oke iguzogide mmiri na nnukwu acid, alukalis, na nnu. Ọ bụ ọnụ ala mana enwere oke okpomọkụ na ogo nrụgide (dị n'okpuru 60 Celsius C / 140° f).
  • CPVC Vaven(Chlorinated polyvinyl chloride): Onye “kwalite” ụdị PVC. Usoro chlorination na-enye ya oke okpomọkụ dị elu (ruo ihe dị ka 90 ° C / 194° f) Mgbe ị na-enwe ezigbo nguzosi ike.
  • PP Vaven(Polypropylene): Ihe eji eme ihe di nma nke nwere ezigbo nguzobe nke acid, alukalis, na sosversic.
  • Puvdf Vaven(Polyvinyliden fluoride): Nke “eze plastik plastik.” Ọ na-enye kemịkal kemịkalụ dị iche iche na ahịhịa ndụ, gụnyere Halgens (Dị ka chlorine na bromine) na ike ozedized oxidize. Ọ na-egosikwa ịdị ọcha dị elu, ike dị elu, na elu dị elu (ruru 140 Celsius C / 284° f), Mana ọ bụ nhọrọ kachasị ọnụ.
• Uru: Ezigbo Chemical, ihe mgbochi iji gbochie Galvanic, dị nro, na ọnụ ahịa (ọkachasị PVC na PP).
• Ọghọf: Ike dị ala, okwukwa, na ogo okpomoku karịa valves igwe; na-enwe nsogbu na-emebi emebi n'okpuru nrụgide ogologo oge.

4. Nchịkwa akụ: Brass vs. Bronze vs. Plastic

Tebụl a chịkọtara ihe njiri mara nke ụdị ihe atọ ahụ maka ntụle doro anya:

Mma	Valvonion na-eguzogide	Ọla ọcha ọla na-eguzogide	Vaịn plasting na-eguzogide vastion (E.G., PVC / PVDF)
Isi Ntughari	Mmiri na-anọpụ iche, mmanu, oku	Oke osimiri, nnu nnu, kemịkal dị iche iche	Acid siri ike & ntọala, Nnukwu kemịkal (Puvdf > Puvc)
Okpomọkụ ọkwa	Keusoro	Ọkara-elu	Kediala (Puvc) / Dị elu (Puvdf)
Ntughari	Keoma	Kacha mma	Ibuda ala (mbelata na okpomọkụ)
Ike Ike	Keoma	Kacha mma	Ibuda ala
Ida onu	Kediala	Keusoro	Kediala (Puvc) / Keelu (Puvdf)
Ntinye ngwa	Mkpọchi mkpọchi, Hvac	Injinụ mmiri, Nchedo ọkụ, keindostri	Nhazi kemịkalụ, Ọgwụ Mmiri, Ngwa dị ọcha

5. Mmechi: Na-eme ka itinye ego smart

Chohọrọ valve na-eguzogide nduzi na-eguzosi ike abụghị usoro kwụ ọtọ; Onweghi ihe uwa. Mana, Ozugbo ị nyochachara ọnọdụ niile na mkpa niile, ị ga - enwe ike ịhọrọ ezigbo ihe maka valvụ gị.

• Maka ụlọ obibi na ụlọ ahịa General, A na-ejigide, ndu-n'efu valvụ ọla (Dị ka DZR C27450) na-abụkarị nhọrọ kachasị mma, Ngosiputa onu ahia na oru.
• Mgbe ngwa gị na-emetụta oke osimiri, nnu nnu, ma ọ bụ chọọ ike dị elu, ntụkwasị obi nke a Bronze valve (dị ka ọkwa C95400) ga-enye udo nke obi.
• Na mgbe ị na-eche ihu igwe na-eme ihe ike, plastik plastik gosiputa uru ha. Ị ga-ahọrọ kpọmkwem si PVC, CPVC, PP, ma ọ bụ Pvdf dabere na kemịkal akọwapụtara, okpomọkụ, na nrụgide.

N'ikpeazụ, Usoro nhọrọ kachasị ama ama na-amalite site na nkọwa zuru oke nke ọnọdụ sistemụ arụmọrụ gị. Ghọta nke ọma, okpomọkụ, okwukwa, na gburugburu, Jiri nduzi mechie mkpa ndị ahụ na njirimara nke ihe dị iche iche. Icheta, Oshọrọ aka nri varinoon na-eguzogide vaịn Maka isi ihe dị mkpa na sistemụ gị bụ ụgwọ ogologo oge na nchekwa ya, oru oma, na uru.

Ajụjụ

Ihe akụrụngwa bụ corrosion na-eguzogide maka valves?

Nhọrọ nke ihe na-eguzogide na-eguzogide ihe na-eguzosi ike maka valvụ na-adabere na mmiri a kapịrị ọnụ, Nta ya, okpomọkụ, na nrụgide na-arụ ọrụ. Ọ dịghị otu ihe na-enweghị ntụpọ n'ụdị niile nke corrosion. Ndị a bụ ụfọdụ ihe ndị na-eguzogide nduru na-eguzogide na-arụ ọrụ na valvụ:

• Ulo ogwu:
  • Igwe anaghị agba nchara: Nke a bụ ihe eji eme ihe na-ejikarị ya dị ka usoro kemịkalụ na gburugburu ya. Akara akara dị iche iche, dị ka 304 na 316, na-enye ọkwa dịgasị iche iche nke nguzogide corrosion, na 316 n'ozuzu ya na-efe efe, ọkachasị megide chlorides.
  • Ọla ákwà na ọla: Ndị a na-eme ọla kọpa na-adabere nke ọma maka ngwa mmiri, gụnyere mmiri nke mmiri. Ha na-enye ezigbo nguzogide corrosion ma dịkwa mfe igwe.
  • Pụrụ Iche Pụrụ Iche: Maka gburugburu corrosive, Abalị nke alloys pụrụ iche na-arụ ọrụ dị elu. Ndị a gụnyere:
• Plastik:
  • Potfe (Polytetralluorooroo): A na-akpọkarị ya na aha aha Teflon®, PTFE bụ onye na-a fluyochara na kemịkasị kemịkalụ na-eguzogide oke nke kemịkal. A na-ejikarị ya dị ka liner ma ọ bụ na akàrà.
  • Polypropylene (PP): Polymer polymer na-enye ezigbo nguzogide ọtụtụ acid, ntọala, na sosver na-eme ka ala dị ala.
• Ihe ndị ọzọ:
  • Seramik: Ihe dị ka Alumina na Zirconia na-enye oke ike na ezigbo nguzogide iyi na-eyi na corrosion site na ọtụtụ mmiri, ọbụlagodi na oke okpomọkụ. A na-ejikarị ha na ngwa ndị dị egwu.

Ihe bụ usoro nchekwa nchekwa nchekwa?

Ọpụpụ na-ahọrọ ihe na-eguzogide ọgwụ, E nwere ike iji usoro dị iche iche iji chebe valvs na corrosion, na-agbasa ndụ ha ma gbasaa nchekwa arụmọrụ:

• Mkpuchi na eriri: Na-etinye akwa mkpuchi na mbara igwe bụ ihe a na-ahụkarị ma dị irè.
  • Epioxy Coctings: Ndị a na-enye nsogbu, Ihe mgbochi kemịkalụ.
  • PTFE conings: Na-enye mkpanaka, Etulatala elu nke nwere ezigbo mmiri ozuzo.
  • Esese: Ihe osise puru iche nwere ike inye ihe mgbochi megide ikuku.
  • Roba ma ọ bụ rọba rọba: Na-edina ebe obibi nke valvụ nwere ike wepụta ọla kọpa site na corrosive.
• Ọgwụgwọ dị n'elu:
  • Na-ekpo ọkụ: Usoro a gụnyere mkpuchi ma ọ bụ ígwè na akwa nke zinc iji chebe ya.
  • Anazizinye: Usoro electromical nke na-eme ka oyibo na-eme ka akwa dị n'elu ọla dị ka aluminom.
• Nchedo Katidic: Usoro a gụnyere ime ka valve Callode nke Cellrochemical Cell. Enwere ike ibute nke a site na itinye aka na-agbanwe ngwa ngwa “aja” metal (dị ka onye ọka ụlọ) ma ọ bụ site na ịkọwapụta eletrik ugbu a.
• Corrosion na-egbochi ndị mmadụ: Ndị a bụ kemịkal na-agbakwunye na mmiri ahụ nwere ike belata ọnụego nke igwe.
• Njikwa gburugburu: Gbanwee gburugburu ebe obibi gburugburu valve nwere ike belata corrosion. Nke a nwere ike ịgụnye belata iru mmiri, na-achịkwa ọnọdụ okpomọkụ, ma ọ bụ iwepu ihe mgbochi site na mmiri mmiri.
• Nhọrọ dị mma na imewe: Usoro izizi nke agbachitere na-ahọrọ ihe ziri ezi maka ngwa a kapịrị ọnụ. Omume ndozi nke na-ezere crovices na mpaghara ebe ndi mmadu na-emeri ike nwere ike itinye uche.

Kedu ihe mgbochi mgbochi corsonoon na ngwa?

Vaịn na-emegide corrosonoon na ihe na-eme mkpọtụ abụghị ụdị ọrụ dị iche iche. Kama, Ha bụ varint vaịn (dị ka bọl, Ọnụ ụzọ, ikele, ma ọ bụ eriri anọ) na ihe ejikọtara ọnụ (Dị ka flanges, mgbaru ọsọ, na tues) nke edeputara nke ahu ma meputa ihe eji eme ihe na / ma obu mkpuchi iji chebe corrosion n'otu gburugburu ebe obibi.

Njirimara kachasị nke valvụ ma ọ bụ nke dabara adaba bụ ikike ya iji nọgide na-eguzosi ike n'ezi ihe na ọrụ ogologo oge mgbe ekpughere mgbasa ozi corrosive. Nke a na - eme ka ogologo oge nke usoro ahụ dum, na-egbochi, na -ebelata ego mmezi.