Yintoni ivalvu yebhola eneendlela ezintathu
Ivalvu yebhola eneendlela ezintathusisixhobo sokulawula ulwelo esisetyenziswa kakhulu kwiinkqubo zoshishino, zorhwebo, kunye neendawo zokuhlala. Uyilo lwaso olukhethekileyo luvumela ukuphambuka, ukuxuba, okanye ukuvala imibhobho. Kweli nqaku, siza kuhlolaimigaqo yokusebenza, iintlobo(kubandakanyaiivalvu zebhola zentsimbi engatyiwayo ezineendlela ezintathu, Uhlobo lwe-Y, Uhlobo lwe-LkunyeUhlobo lwe-T), izicelokunyeiingenelokwezi valve.
Umgaqo-nkqubo wokusebenza weIvalvu yeBhola yeNdlela ezi-3
Ivalvu yebhola eneendlela ezintathu inebhola engenanto, ejikelezayo enezibuko enye okanye ezimbini (imingxunya) kunye noqhagamshelo lwemibhobho emithathu. Ngokujikelezisa ibhola ngesandla okanye nge-actuator, indlela yokuhamba iyaqondiswa. Ngokuxhomekeke kuyilo lwevalvu, inokwenza oku kulandelayo:
- Ukuhamba kwesiphambukaphakathi kweevenkile ezimbini.
- Xuba ulweloukusuka kwiindawo ezimbini zokungena ukuya kwindawo enye yokukhupha amanzi.
- Vala ukuhamba kwamanzingokupheleleyo.
Indawo ibhola elikuyo imisela indlela elihamba ngayo. Umzekelo, ukujika ngama-90 degrees kunokutshintsha ukuhamba ukusuka kwelinye izibuko ukuya kwelinye, ngelixa ukujika ngama-180 degrees kunokuthintela konke ukuhamba.
Izinto eziphambili zeValve yeBhola eneendlela ezintathu
Iivalvu zebhola zemizi-mveliso ezi-3-way zixhomekeke kwiindawo ezicwangciswe ngokuchanekileyo ukulawula ukuhamba kolwelo. Ukuqonda ezi nxalenye kuqinisekisa ukhetho olufanelekileyo lweevalvu kwizicelo ezifana nokucubungula iikhemikhali, i-HVAC, kunye neenkqubo zeoyile/igesi.
1. Iinxalenye ezibalulekileyo zomsebenzi
•Ibhola (I-Flow Control Sphere)
Izinto eziphathekayo:Intsimbi engagqwaliyo (304/316), ithusi, okanye i-titanium alloys
Uyilo:Iquka imijelo yembobo enobume be-L/T/Y yokuphambukisa/ukuxuba ukuhamba kwamanzi
Unyango Lomphezulu:Ipolished-mirror (Ra≤0.8μm) yokuvala i-zero-leakage
• Isihlalo seValve (Isitywino esiPhambili)
Izinto eziphathekayo:I-PTFE (Teflon™), i-PEEK, okanye ii-elastomers eziqinisiweyo
Umsebenzi:Yenza isitywino esithambileyo sesinyithi ngebhola kwiindawo zokuqukuqela amanzi
Uluhlu lobushushu/loxinzelelo:-50°C ukuya kwi-260°C | Ukuya kuthi ga kwi-PN40 (iKlasi 300)
2. Inkqubo yokutywina
| Icandelo | Indima kunye neenkcukacha | Izinto eziqhelekileyo |
|---|---|---|
Iindandatho zokutywina | Ukuthintela ukuvuza kwesibini phakathi kwebhola kunye nezihlalo | I-NBR, i-EPDM, i-PTFE efakwe ngaphakathi |
Isiqu | Ukudluliselwa kweTorque ukusuka kwi-actuator ukuya kwibhola | I-304 SS ene-chrome plating |
| - Uyilo oluchasene nokuqhushumba ngokwemigangatho ye-API 608 | - Ukungqubana okujikelezayo ≤15 Nm |
3. Ukusebenza kunye nezinto zolwakhiwo
• Isiphatho/Isiqalisi
Incwadi yesandla:Izalathisi zesikhundla se-90° okanye i-180°
Okuzenzakalelayo:Ii-actuators zombane/zomoya (ezilinganiswe yi-IP67) ezinolawulo lwe-4-20mA
• Umzimba weValve
Izixhobo:Intsimbi yekhabhoni (i-WCB), intsimbi engatyiwayo (i-CF8M), intsimbi ethambileyo
Uvavanyo loxinzelelo:I-PN16 (1.6 MPa), i-PN25 (2.5 MPa), i-PN40 (4.0 MPa)
Ukuphelisa uQhagamshelo:Ifakwe imisonto (NPT/BSP), ifakelwe iflange (ASME B16.5), okanye idityaniswe
• Izixhobo
Izinzwa zendawo, iiswitshi zomda, okanye iivalvu zokujonga ezidityanisiweyo (ukhetho)
4. Ulwazi lobuchwephesha kwiinjineli
• Isikhokelo soKhetho lwezinto
Sebenzisa iibhola ze-SS ze-316L kunye nezihlalo ze-PTFE kwii-asidi/ii-alkali; imizimba yentsimbi yekhabhoni kwiintambo zomphunga (ukonga iindleko ≥30%).
• Ukuthintela Ukungaphumeleli
Izicelo zobushushu obuphezulu:Cacisa izitywino ezifakwe igrafayithi (thintela ukuphuma kwayo kwi->200°C)
Ulwelo olurhabaxa:Khetha iibhola eziqinileyo (i-HVOF tungsten carbide)
Iintlobo zeeValve zeBhola ezi-3
Iivalvu zebhola ezineendlela ezintathu zihlulwe ngokweefom zezibuko zazo:
1. Ivalvu yeBhola yohlobo lwe-L eneendlela ezi-3
- IIvalvu yezibuko le-Linembobo emile okwe-“L”.
- Iqondisa kwakhona ukuhamba phakathi kwamazibuko amabini ngelixa ivimba elesithathu.
- Izicelo: Ilungele ukutshintsha indlela esebenza ngayo (umz., ukutshintshana phakathi kweenkqubo zokupholisa nezokufudumala).
2. Ivalvu yeBhola yohlobo lwe-T-Type 3-Way
- IIvalvu ye-T-portinombombo omile okwe-“T”.
- Ingaxuba imijelo emibini engenayo okanye yahlule umjelo omnye ube ziindlela ezimbini.
- Izicelo: Isetyenziswa kwiinkqubo zokuxuba, ezifana nokudibanisa amanzi ashushu nabandayo.
3. Ivalvu yeBhola ye-Y-Type 3-Way
- IIvalvu ye-Y-portinembobo egobileyo ye-120-degree, nto leyo enciphisa ukwehla koxinzelelo.
- Ilungele ukusetyenziswa okufuna ukujika komoya okutyibilikayo kunye nokungazinzi okuncinci.
- Izicelo: Ixhaphakile kwiinkqubo zokucubungula iikhemikhali kunye ne-HVAC.
Ukongeza,iivalvu zebhola zentsimbi engatyiwayo ezineendlela ezintathuzithandwa ngenxa yokumelana nokugqwala, nto leyo eyenza ukuba zilungele iindawo ezinzima ezifana nemizi-mveliso yaselwandle okanye yeekhemikhali.
Indlela Iivalvu Zebhola Ezineendlela Ezi-3 Ezahluke Ngayo Kwezinye Iintlobo Zevalvu
Ngokungafaniyo neevalvu zesiqhelo ezinqunyelwe kwimisebenzi yokuvula/yokucima, iivalvu zebhola ezineendlela ezintathu zivumela ulawulo lokuhamba kwamanzi oluntsonkothileyo (ukuphambuka, ukuxuba, ukutshintsha) kwiyunithi enye encinci. Sihlalutya umahluko wesakhiwo kunye nokusebenza sisebenzisa idatha yobunjineli.
1. Iingenelo zoYilo oluKhethekileyo
A. Ulawulo lokuhamba kwamanzi oluneeporti ezininzi
| Uhlobo lweValve | Indlela Yokuhamba | Izakhono |
|---|---|---|
| Ivalvu yeBhola yeNdlela ezi-3 | Ibhorethi enobume be-L/T | • Ukwahlukana kokuhamba kwamanzi (ukungena oku-1 → iindawo zokuphuma ezi-2) • Ukuxubana kokuhamba kwamanzi (ii-inlets ezi-2 → i-outlet e-1) • Ukutshintsha indlela |
| Ivalve yeBhola eQhelekileyo | Imbobo ethe tye | • Ivuliwe/icinyiwe kuphela |
| I-Sango/I-Globe Valve | Ukuhamba komgca | • Ukucinezela okanye ukuvalela |
*Umzekelo: Iivalvu ze-T-port zilungisa ii-flow ratios (umz., i-70/30 split) kwiinkqubo zokuxuba.*
B. Ukuhlanganiswa Kokugcina Isithuba
• Itshintsha iivalvu ezininzi kunye nezixhobo zombhobho
• Ukunciphisa ubungakanani: Iivalvu zebhola ze-DN50 ezineendlela ezintathu zimfutshane ngama-30-40% kuneendibano zeevalvu zeglobe ezimbini (ngokweNcwadi yoKhetho lweeValve zeZimboni)
• Ukonga ubunzima: Ukuya kuthi ga kwi-25% xa kuthelekiswa nokuseta iivalvu zesango ezilinganayo
2. Uthelekiso lweNtsebenzo: IiMetriki ezibalulekileyo
2.1 vs Iivalvu zeSango
| Ipharamitha | Ivalvu yeBhola yeNdlela ezi-3 | Ivalvu yeSango |
|---|---|---|
| Ukutywina | Izitywina ezithambileyo (PTFE): ≤0.01% ukuvuza | Izitywino zesinyithi: ~0.1% ukuvuza |
| (Iklasi yesi-6 ye-ISO 5208) | (Iklasi ye-ISO 5208 IV) | |
| Isantya sokuSebenza | Ukujikeleza kwe-90° (imizuzwana eyi-1-2) | Ivili lesandla elijika-jikayo kaninzi (imizuzwana eli-10+) |
| Ulondolozo | Imijikelo engaphezu kwe-100,000 (ubomi be-stem seal) | Ukulungiswa rhoqo kokupakisha i-gland |
Iivalvu zeGlobe ze-2.2 vs.
| Ipharamitha | Ivalvu yeBhola yeNdlela ezi-3 | Ivalvu yeGlobe |
|---|---|---|
| Ukumelana nokuhamba kwamanzi | I-Kv=0.05 (ukwehla koxinzelelo oluphantse lube yi-zero) | I-Kv=5.0 (ukuxinana okukhulu) |
| Ubomi beNkonzo | Ubomi beminyaka eli-10 (akukho sihlalo sitshintshwayo) | Ukutshintshwa kwediski/isitywino sonyaka |
| Ukusebenza kakuhle kweendleko | I-TCO esezantsi ngama-35% (ulondolozo oluncitshisiweyo) | Ukusetyenziswa kakhulu kweendawo ezingasetyenziswanga |
Umthombo: "Iinkqubo zoBunjineli boLwelo lweMishini" idatha yokulahleka koxinzelelo
Iivalvu zeButterfly ezi-2.3 vs.
| Ipharamitha | Ivalvu yeBhola yeNdlela ezi-3 | Ivalvu yebhabhathane |
|---|---|---|
| Uvavanyo loxinzelelo | I-PN64 (i-ASME Class 400) | Ubuninzi bePN16 (iKlasi ye-150) |
| Isitywino Esiqinileyo Seebhamuza | Ifikeleleka ukuya kwi-0 bar | Ilinganiselwe kuxinzelelo oluphantsi |
| Inzuzo yeendleko | Ilungele imigca ye-DN15-DN200 | Ixabiso eliphantsi kwiinkqubo ze-DN300+ |
Izikhokelo zoKhetho oluPhambili
✅ Khetha iivalvu zebhola ezineendlela ezintathu xa ufuna:
• Ukuxuba/ukuguqula ukugeleza komthamo weekhemikhali
• Ukutywinwa kwe-zero-leakage kwimidiya enobungozi
• Ufakelo olunesithuba esincinci (umz., iinkqubo ezifakelwe kwi-skid)
⚠️ Cinga ngezinye iindlela:
• Imigca yamanzi emikhulu nexabiso liphantsi (sebenzisa iivalvu zebhabhathane)
• Ukuqhobosha okuchanekileyo (kukhethwa iivalvu zeglobe)
Izicelo eziphambili kunye neemeko zokusebenza
Iivalvu zebhola ezineendlela ezintathu zisetyenziswa kumashishini onke ngenxa yokukwazi ukuzivumelanisa nezimo:
- Imizi-mveliso: Lawula umphunga, iigesi, okanye ulwelo olubolayo kwizityalo zeekhemikhali.
- I-HVAC: Lawula ukusasazwa kwamanzi okufudumeza/okupholisa.
- Unyango lwamanzi: Jika okanye udibanise ulwelo kwiinkqubo zokucoca.
- Ioyile kunye neGesi: Phatha imibhobho enoxinzelelo oluphezulu.
Iivalvu zebhola zentsimbi engenasici ezineendlela ezintathubagqwesile kwiimeko ezimandundu, kuquka amaqondo obushushu aphezulu, izixhobo ezibangela ukubola, kunye neenkqubo zoxinzelelo oluphezulu.
Iingenelo zeeValve zeBhola ezineendlela ezintathu
- Imisebenzi emininzi: Yenza imisebenzi yokuxuba, yokujika, kunye nokuvala ngevalvu enye.
- Uyilo oluNcinci: Gcina indawo xa kuthelekiswa nokusebenzisa iivalvu ezininzi ezineendlela ezimbini.
- Ukuqina: Yenziwe ngentsimbi eshayinayoiintlobo ezahlukeneyo ziyamelana nokugqwala, ukukhukuliseka, kunye nomonakalo weekhemikhali.
- Ukugcinwa Okuphantsi: Isakhiwo esilula esinamanqaku ambalwa okuvuza.
- Ukusebenza ngokukhawuleza: Ukujikeleza kweedigri ezingama-90 kwenza ukuba kubekho ulawulo olukhawulezayo lokuhamba kwamanzi.
Ukukhetha iValve yeBhola eNgcono eneendlela ezi-3
Ukukhetha uhlobo oluchanekileyo kuxhomekeke kwiimfuno zenkqubo yakho:
- SebenzisaUhlobo lwe-Lyokutshintsha phakathi kweevenkile ezimbini.
- KhethaUhlobo lwe-Tukuxuba okanye ukwahlulahlula ukugeleza kwamanzi.
- KhethaUhlobo lwe-Yukuphambuka okuncinci.
- Kwiindawo ezingcolisayo, beka phambiliiivalvu zebhola zentsimbi engatyiwayo ezineendlela ezintathu.
Isiphelo
Iindlela ezi-3iivalvu zebholazibalulekile ekulawuleni ukuhamba kwamanzi ngokufanelekileyo kwiinkqubo zemibhobho ezintsonkothileyo. Ukuqonda umahluko phakathiUhlobo lwe-L, Uhlobo lwe-TkunyeUhlobo lwe-Yiivalvu—kunye nokukhetha izinto ezifanayenziwe ngentsimbi eshayinayo—iqinisekisa ukusebenza kakuhle. Nokuba zikwiifektri zoshishino, unyango lwamanzi, okanye iinkqubo ze-HVAC, ezi valve zibonelela ngokuthembeka, ukuguquguquka, kunye nobude bexesha.
Ixesha lokuthumela: Matshi-03-2025