Amavalvu ebhabhathane aqinileuhlobo lwe-butterfly valve olusetshenziswa kakhulu emipayipini yezimboni. Basebenzisa izinto ezinwebekayo njengerabha njengendawo yokuvala, bethembele "ekuqineni kwezinto" kanye "nokucindezelwa kwesakhiwo" ukuze bafeze ukusebenza kokuvala.
Lesi sihloko asigcini nje ngokwethula isakhiwo, ukusetshenziswa, nezinto zokwakha, kodwa futhi sihlaziya kusukela olwazini olujwayelekile kuya ekuqondeni okujulile.
1. Ukuqonda Okuyisisekelo Kwama-Valve E-Resilient Butterfly (Incazelo Emfushane)
1.1 Isakhiwo Esiyisisekelo
Umzimba weValve:Ngokuvamile uhlobo lwe-wafer, uhlobo lwe-lug, noma uhlobo lwe-flanged.
Idiski Yevalvu:Ipuleti lensimbi eliyindilinga elicindezela isihlalo serabha uma livaliwe ukuze lidale uphawu.
Isihlalo Sevalvu:Kwenziwe ngezinto ezinwebeka njenge-NBR/EPDM/PTFE/Rubber Lined, esebenza ngokubambisana nediski yevalvu.
Isiqu se-Valve:Ngokuvamile isebenzisa umklamo we-single-shaft noma i-double-shaft.
I-Actuator:Isibambo, igiya lezibungu, ugesi, umoya, njll.
1.2 Izici Ezivamile
Izinga lokuvala livame ukufeza ukuvuza okungenalutho.
Izindleko eziphansi kanye nohlu olubanzi lwezicelo.
Isetshenziswa kakhulu ezinhlelweni zokucindezela okuphansi kuya kokuphakathi njengamanzi, umoya opholile, i-HVAC, kanye nezimboni zamakhemikhali ezilula.
2. Imibono eyiphutha mayelana nama-Resilient Butterfly Valve
2.1 Umongo wokuvala ukuqina kwerabha
Abantu abaningi bakholelwa ukuthi: "Izihlalo eziqinile zithembele ekuqineni kwerabha ukuze zivale."
Umongo wangempela wokuvala uphawu yilo:
Umzimba wevalvu + ibanga eliphakathi kwesiqu sevalvu + ubukhulu bediski yevalvu + indlela yokushumeka isihlalo sevalvu
Ndawonye dala "indawo yokucindezela elawulwayo".
Kalula nje:
Irabha ayikwazi ukukhululeka kakhulu noma ukuqina kakhulu; incike "endaweni yokucindezela yokuvala" elawulwa ngokunemba komshini.
Kungani lokhu kubalulekile?
Ukucindezelwa okunganele: I-valve iyavuza uma ivaliwe.
Ukucindezela ngokweqile: I-torque ephezulu kakhulu, ukuguga kwerabha ngaphambi kwesikhathi.
2.2 Ingabe ukuma kwediski okulula kakhulu kusebenzisa amandla amaningi?
Umbono ovamile: Ama-valve disc alula anganciphisa ukulahleka kwengcindezi.
Lokhu kuyiqiniso ngokwemfundiso "ye-fluid mechanics", kodwa akusebenzi ngokuphelele ekusetshenzisweni kwangempela kwama-Resilient Butterfly Valve.
Isizathu:
Umthombo oyinhloko wokulahlekelwa yingcindezi kuma-butterfly valve akusikho ukuma kwediski ye-valve, kodwa "umphumela womhubhe omncane" obangelwa ukufinyela kwerabha yesihlalo se-valve. Idiski ye-valve njengoba incane kakhulu ingahluleka ukunikeza ingcindezi yokuxhumana eyanele, okungase kuholele emigqeni yokuvala engaqhubeki nokuvuza.
Idiski yevalvu ethambile ingabangela amaphuzu abukhali okucindezeleka erabheni, okunciphisa isikhathi sayo sokuphila.
Ngakho-ke, ukwakheka kwamavalvu ebhabhathane athambile kubeka phambili "ukuzinza kwemigqa yokuvala" kunokulula.
2.3 Amavalvu ebhabhathane ahlala phansi athambile anesakhiwo esiphakathi nendawo kuphela
Ku-inthanethi kuvame ukushiwo ukuthi amavalvu ebhabhathane angajwayelekile kufanele asebenzise izivalo eziqinile zensimbi.
Kodwa-ke, ulwazi lobunjiniyela bomhlaba wangempela lubonisa ukuthi:
Ukungajwayelekile okuphindwe kabili kuthuthukisa kakhulu isikhathi sokuphila sama-Resilient Butterfly Valve.
Isizathu:
Ukungaguquguquki okuphindwe kabili: Idiski yevalvu ithinta irabha kuphela phakathi nokuvala okungu-2-3° kokugcina, okunciphisa kakhulu ukungqubuzana.
I-torque ephansi, okuholela ekukhetheni i-actuator engabizi kakhulu.
2.4 Okubalulekile ngesihlalo senjoloba "igama lezinto ezibonakalayo"*
Abasebenzisi abaningi bagxila kuphela ku:
I-EPDM
I-NBR
I-Viton (FKM)
Kodwa okuthinta ngempela isikhathi sokuphila yilokhu:
2.4.1 Ubulukhuni bogu:
Isibonelo, ubulukhuni be-EPDM ye-Shore A akusho ukuthi "uma ithambile kungcono." Ngokuvamile, i-65-75 iyiphuzu elihle kakhulu lokulinganisela, okufinyelela ukuvuza okungu-zero ngokucindezela okuphansi (PN10-16).
Ithambile kakhulu: I-torque ephansi kodwa idabukile kalula. Ezindaweni ezinomfutho ophezulu (>2 MPa) noma ezindaweni eziguquguqukayo, irabha ethambile icindezelwa kakhulu, okubangela ukuguquguquka kwe-extrusion. Ngaphezu kwalokho, amazinga okushisa aphezulu (>80°C) athambisa irabha kakhulu.
Kunzima kakhulu: Kunzima ukuvala, ikakhulukazi ezinhlelweni ezinengcindezi ephansi (<1 MPa), lapho irabha ingenakucindezelwa ngokwanele ukuze yakhe isixhumi esingangeni moya, okuholela ekuvuza okuncane.
2.4.2 Izinga lokushisa le-Vulcanization kanye nesikhathi sokwelapha
Izinga lokushisa le-Vulcanization kanye nesikhathi sokupholisa kulawula ukuxhumanisa kwamaketanga e-raber molecular, okuthinta ngqo ukuzinza kwesakhiwo senethiwekhi kanye nokusebenza kwesikhathi eside. Ibanga elijwayelekile lingu-140-160°C, imizuzu engama-30-60. Amazinga okushisa aphezulu kakhulu noma aphansi kakhulu aholela ekuqineni okungalingani kanye nokuguga okusheshayo. Inkampani yethu ngokuvamile isebenzisa i-vulcanization enezigaba eziningi (ngaphambi kokupholisa ku-140°C, kulandelwe ukupholisa ngemuva kokupholisa ku-150°C). 2.4.3 Isethi Yokucindezela
Isethi yokucindezela ibhekisela engxenyeni yokuguquguquka okuhlala njalo irabha edlula kuyo ngaphansi kokucindezeleka okuqhubekayo (ngokuvamile ukucindezela okungu-25%-50%, okuhlolwe ku-70°C/22h, i-ASTM D395) futhi ayikwazi ukululama ngokugcwele. Inani elifanele lesethi yokucindezela lingaphansi kuka-20%. Leli nani "liyisithiyo" sokuvala ivalvu isikhathi eside; ukucindezela okuphezulu kwesikhathi eside kuholela ezikhaleni ezihlala njalo, kwakha amaphuzu okuvuza.
2.4.4 Amandla Okudonsa
A. Amandla Okuthamba (ngokuvamile >10 MPa, ASTM D412) ukucindezeleka okuphezulu irabha engakuthwala ngaphambi kokuphuka kokuthamba, futhi kubalulekile ekumelaneni nokuguguleka kwesihlalo sevalvu. Okuqukethwe kwerabha kanye nesilinganiso somnyama wekhabhoni kunquma amandla okuthamba kwesihlalo sevalvu.
Kuma-valve e-butterfly, ayamelana nokugundwa yi-valve disc edge kanye nokushaywa uketshezi.
2.4.5 Ingozi enkulu efihliwe yamavalvu ebhabhathane ukuvuza.
Ezingozini zobunjiniyela, ukuvuza ngokuvamile akuyona inkinga enkulu, kodwa kunalokho ukwanda kwe-torque.
Okubangela ngempela ukwehluleka kwesistimu yilokhu:
Ukwanda okukhulu kwe-torque → umonakalo wegiya lezibungu → ukukhubeka kwe-actuator → ukuvaleka kwe-valve
Kungani i-torque ikhuphuka ngokuzumayo?
- Ukwandiswa kwesihlalo sevalvu ngokushisa okuphezulu
- Ukumuncwa kwamanzi nokwandiswa kwerabha (ikakhulukazi i-EPDM esezingeni eliphansi)
- Ukuguquguquka okungapheli kwerabha ngenxa yokucindezelwa kwesikhathi eside
- Umklamo ongalungile wesikhala esiphakathi kwesiqu se-valve nediski ye-valve
- Isihlalo sevalvu asiphukile kahle ngemva kokufakwa esikhundleni
Ngakho-ke, "ijika le-torque" liyinkomba ebaluleke kakhulu.
2.4.6 Ukunemba komshini wokusebenza kwe-valve akubalulekile.
Abantu abaningi bakholelwa ngephutha ukuthi ukuvalwa kwamavalvu ebhabhathane athambile kuncike kakhulu enjolobeni, ngakho-ke izidingo zokunemba komshini womzimba wevalvu aziphezulu.
Lokhu akulungile neze.
Ukunemba komzimba we-valve kuthinta:
Ukujula komsele wesihlalo se-valve → ukuphambuka kokucindezela kokuvala, okubangela ukungahambisani kalula ngesikhathi sokuvula nokuvala.
Ukungapheleli komngcele womsele → ukuklwebheka ngesikhathi sokufakwa kwesihlalo se-valve
Iphutha ebangeni eliphakathi lediski yevalvu → ukuxhumana okweqile kwendawo
2.4.7 Ingqikithi "yamavalvu ebhabhathane agcwele irabha/i-PTFE" yidiski yevalvu.
Ingqikithi yesakhiwo esigcwele irabha noma i-PTFE ayikona "ukuba nendawo enkulu ebonakala ingagqwali," kodwa ukuvimba i-medium ukuthi ingangeni ezindleleni ezincane ngaphakathi komzimba we-valve. Izinkinga eziningi ngama-butterfly valve angabizi azibangelwa yikhwalithi yerabha ephansi, kodwa kunalokho:
"Isikhala esimise okwe-wedge" lapho kuhlangana khona isihlalo nomzimba we-valve asilungiswanga kahle.
Ukuguguleka koketshezi isikhathi eside → imifantu emincane → ukuqhuma kwerabha nokuvuvukala
Isinyathelo sokugcina ukwehluleka kwesihlalo se-valve okubonakalayo.
3. Kungani kusetshenziswa ama-Resilient Butterfly Valve emhlabeni wonke?
Ngaphandle kwezindleko eziphansi, izizathu ezintathu ezijulile yilezi:
3.1. Ukubekezelela amaphutha okuphezulu kakhulu
Uma kuqhathaniswa nezimbobo zensimbi, izimbobo zerabha, ngenxa yokuqina kwazo okuhle kakhulu, zinokubekezelela okunamandla kokuphambuka kokufakwa kanye nokuguquguquka okuncane.
Ngisho namaphutha okwakhiwa kwamapayipi, ukuphambuka kwe-flange, kanye nokucindezeleka kwe-bolt okungalingani kumuncwa ukunwebeka kwerabha (vele, lokhu kulinganiselwe futhi akufiseleki, futhi kuzodala umonakalo othile epayipini nasevalvini ngokuhamba kwesikhathi).
3.2. Ukuzivumelanisa nezimo okungcono kakhulu nokushintshashintsha kwengcindezi yesistimu
Izivikelo zerabha aziqinile njengezivikelo zensimbi; zivala ngokuzenzakalelayo umugqa wokuvala ngesikhathi sokushintshashintsha kwengcindezi.
3.3. Izindleko eziphansi kakhulu zomjikelezo wokuphila
Amavalvu ebhabhathane aqinile aqinile, kodwa izindleko zezindleko kanye nezindleko ze-actuator ziphakeme.
Uma kuqhathaniswa, izindleko zokutshalwa kwezimali kanye nokugcinwa kwama-Resilient Butterfly Valve ziyonga kakhulu.
4. Isiphetho
Inani leAmavalvu ebhabhathane aqinileakuyona nje "ukuvala okuthambile"
Amavalvu ebhabhathane avaliwe kahle angase abonakale elula, kodwa imikhiqizo emihle kakhulu isekelwa yi-logic eqinile yezinga lobunjiniyela, okuhlanganisa:
Umklamo wendawo yokucindezelwa onembile
Ukusebenza kwerabha okulawulwayo
Ukufaniswa kwejometri komzimba we-valve kanye nesiqu
Inqubo yokuhlanganisa isihlalo se-valve
Ukuphathwa kwe-torque
Ukuhlolwa komjikelezo wokuphila
Lezi yizici ezibalulekile ezinquma ikhwalithi, hhayi "igama lezinto ezibonakalayo" kanye "nesakhiwo sokubukeka".
QAPHELA:* I-DATA ibhekisela kule webhusayithi:https://zfavalves.com/blog/key-factors-that-determine-the-quality-of-soft-seal-butterfly-valves/
Isikhathi sokuthunyelwe: Disemba-09-2025