Resilient butterfly valvesndiyo inonyanya kushandiswa mhando yevhavhavhavhavha mumapaipi emaindasitiri. Ivo vanoshandisa elastic zvinhu zvakaita serabha senzvimbo yekuisa chisimbiso, vachivimba ne "material resilience" uye "structural compression" kuti vakwanise kuita chisimbiso.
Ichi chinyorwa hachingosuma chimiro, mashandisirwo, uye zviwanikwa, asi zvakare chinozviongorora kubva kuruzivo rwese kuenda kune yakadzama logic.
1. Nzwisiso Yekutanga yeResilient Butterfly Valves (Tsananguro Pfupi)
1.1 Chimiro Chekutanga
Valve Body:Kazhinji wafer type, lug type, kana flanged type.
Valve Disc:Indiro yesimbi yedenderedzwa inodzvanya chigaro cherabha kana yakavharwa kugadzira chisimbiso.
Valve Seat:Yakagadzirwa nezvinhu elastic zvakadai seNBR/EPDM/PTFE/Rubber Lined, ichishanda pamwe chete nevhavha disc.
Dzinde revhavha:Kunyanya inoshandisa imwe-shaft kana mbiri-shaft dhizaini.
Actuator:Bata, giya rehonye, magetsi, pneumatic, nezvimwe.
1.2 Zvakafanana Zvimiro
Chisimbiso level inowanzoita zero leakage.
Mutengo wakaderera uye huwandu hwakawanda hwekushandisa.
Inonyanya kushandiswa muzasi kusvika pakati pekumanikidza masisitimu akadai semvura, air conditioning, HVAC, uye chiedza chemakemikari maindasitiri.
2. Mafungiro Akashata pamusoro peResilient Butterfly Valves
2.1 Mhedzisiro yekuisa chisimbiso ndeye rubber resilience
Vanhu vazhinji vanotenda kuti: "Zvigaro zvakagadzikana zvinovimba nerubber resilience yekuisa chisimbiso."
Icho chaicho chaicho chekuisa chisimbiso ndechekuti:
Varuvhu muviri + vharafu stem centre kureba + vharafu disc ukobvu + vharafu chigaro embedding nzira
Pamwe chete gadzira "controlled compression zone".
Zviri nyore:
Iyo rabha haigone kuve yakasununguka kana yakanyanya kusimba; inovimba ne "chisimbiso compression zone" inodzorwa nemachining chaiyo.
Nei izvi zvakakosha?
Kutsikirira kusina kukwana: Valve inobuda kana yakavharwa.
Kuwedzeredza kudzvinyirira: Yakanyanya kukwirisa torque, kuchembera kusati kwasvika kwerabha.
2.2 Chimiro chedhisiki chakakwenenzverwa chinowedzera simba-rinoshanda here?
Maonero akajairwa: Madhisiki evharuvhu akakwenenzverwa anogona kuderedza kurasikirwa kwekumanikidza.
Izvi ndezvechokwadi maererano ne "fluid mechanics" dzidziso, asi haishande kune chaiyo mashandisirwo eResilient Butterfly Valves.
Chikonzero:
Chinhu chikuru chekurasikirwa kwekumanikidzwa mumavharuvhu evhavha haisi chimiro chevharuvhu disc, asi "micro-channel tunnel effect" inokonzerwa nekudhonzwa kwechigaro chevhavha rabha. Iyo valve disc kuve yakatetepa zvakanyanya inogona kutadza kupa yakakwana yekubata kumanikidza, izvo zvinogona kutungamira kune inoregedza kuvhara mitsetse uye kuvuza.
A streamlined valve disc inogona kukonzera kupinza pfungwa dzekushushikana parubha, kuderedza hupenyu hwayo.
Naizvozvo, dhizaini yemavharuvhu eshavishavi akapfava anoisa pamberi "kugadzikana kwemutsara wekusimbisa" pamusoro pekugadzirisa.
2.3 Mavharuvhu eshavishavi akapfava ane chimiro chepakati chete
Zvinowanzotaurwa online kuti eccentric butterfly mavharuvhu anofanira kushandisa simbi yakaoma zvisimbiso.
Nekudaro, chaiyo-yepasirese engineering chiitiko chinoratidza kuti:
Kaviri eccentricity inovandudza zvakanyanya hupenyu hweResilient Butterfly Valves.
Chikonzero:
Kaviri eccentricity: Ivhavha disc inongobata rabha panguva yekupedzisira 2-3 ° yekuvhara, zvakanyanya kuderedza friction.
Yakaderera torque, inotungamira kune yakawedzera hupfumi actuator kusarudzwa.
2.4 Chakanyanya kutariswa chigaro cherabha i "zita rechinhu"*
Vazhinji vashandisi vanongotarisa pa:
EPDM
NBR
Viton (FKM)
Asi izvo zvinonyatso kanganisa hupenyu ndeiyi:
2.4.1 Kuoma kwemahombekombe:
Semuenzaniso, iyo Shore A kuoma kweEPDM haisi nyaya ye "iyo yakapfava zviri nani." Kazhinji, 65-75 ndiyo yakakwana chiyero poindi, kuwana zero kuvuza nekudzika kwakadzika (PN10-16).
Yakanyanya kupfava: Torque yakaderera asi kubvaruka zviri nyore. Mupamusoro-kudzvanywa peaks (> 2 MPa) kana mhirizhonga nharaunda, rabha rakapfava rinomanikidzwa zvakanyanya, zvichikonzera extrusion deformation. Uyezve, tembiricha yepamusoro (>80°C) inowedzera kupfavisa rabha.
Zvakanyanya kuoma: Zvakaoma kuisa chisimbiso, kunyanya mu-low-pressure systems (<1 MPa), apo rubber haigoni kusungirirwa zvakakwana kuti iite airtight interface, zvichiita kuti micro-leakage.
2.4.2 Vulcanization tembiricha uye nguva yekurapa
Vulcanization tembiricha uye nguva yekurapa inodzora kuchinjika-kubatanidza kwerabha molecular cheni, inokanganisa zvakananga kugadzikana kweiyo network chimiro uye kushanda kwenguva refu. Mhando yemhando ndeye 140-160 ° C, 30-60 maminitsi. Kunyanya kupisa kana kuderera zvakanyanya kunotungamirira kukurapa kusina kufanana uye kukurumidza kukwegura. Kambani yedu inowanzo shandisa multi-stage vulcanization (pre-curing at 140 ° C, inoteverwa ne post-curing at 150 ° C). 2.4.3 Compression Set
Compression set inoreva chikamu chekusingaperi deformation iyo rabha inopinda pasi pekunetseka nguva dzose (kazhinji 25% -50% compression, yakaedzwa pa 70 ° C / 22h, ASTM D395) uye haigone kupora zvizere. Iyo yakakosha kukosha kwekumanikidza set ndeye <20%. Kukosha uku ndiko "bhodhoro" rekuvhara kwenguva refu kwevhavha; refu-refu high pressure inotungamirira kumagapu asingagumi, achigadzira leakage points.
2.4.4 Tensile Simba
A. Tensile Strength (kazhinji> 10 MPa, ASTM D412) ndiyo inonyanya kunetseka iyo rubber inogona kumira isati yaputsika, uye inokosha pakugadzirisa kusakara uye kubvarura kwechigaro chevhavha. Iyo rabha yemukati uye kabhoni dema reshiyo inosarudza kusimba kwechigaro chevharuvhu.
Mumavharuvhu eshavishavi, rinoramba kugerwa nevharuvhu disc edge uye kukanganiswa kwemvura.
2.4.5 Ngozi huru yakavanda yemavharuvhu eshavishavi kudonha.
Mune tsaona dzeinjiniya, kuvuza kazhinji harisi dambudziko rakakura, asi kuwedzera kwe torque.
Izvo chaizvo zvinotungamira mukukundikana kwesystem ndeiyi:
Kamwe kamwe kuvhiya kwe torque → kukuvadzwa kwegiya rehonye → kutsika kwemugadzirisi → kurovera vharafu
Sei torque ichikurumidza kuwedzera?
- Kuwedzera kwekushisa kwechigaro chevhavha
-Kunyura kwemvura uye kuwedzera kwerabha (kunyanya yakaderera-mhando EPDM)
- Kugadziriswa kwechigarire kwerubha nekuda kwekumanikidzwa kwenguva refu
- Dhizaini isina kunaka yepakati pakati pevharuvha stem uye valve disc
-Chigaro chevharuvhu hachina kuputswa mukati mushure mekutsiviwa
Naizvozvo, "torque curve" chiratidzo chakakosha.
2.4.6 Valve body machining kurongeka hakuna kukosha.
Vanhu vazhinji vanotenda zvisiri izvo kuti kuiswa chisimbiso kwemavharuvhu akapfava-akagara anonyanya kuvimba nerabha, saka machining akarurama zvinodiwa zvemuviri wevharuvhu hazvina kukwirira.
Izvi hazvina kunaka zvachose.
Kurongeka kwemuviri wevharuvhu kunokanganisa:
Kudzika kwevhavha yechigaro chegiroove → kuvharisa kudzvanya kutsauka, zvichikonzera kusarongeka nyore panguva yekuvhura nekuvhara.
Kusakwana kukwenya kwegorofu → kukwenya panguva yekuisa chigaro chevharuvhu
Kanganiso pakati pechinhambwe chevharuvhu disc → kugarisana kwakanyanyisa kubata
2.4.7 Nheyo ye "full rabha/PTFE lined butterfly mavharuvhu" ndiro dhisiki revharuvhu.
Nheyo yerabha yakazara kana PTFE yakamisikidzwa chimiro hachifanirwe "kuva nenzvimbo yakakura inoratidzika isingadzivirirwe," asi kuvharira yepakati kuti ipinde mukati meiyo mikuru-channel mukati memuviri wevharuvhu. Matambudziko mazhinji ane isingadhure butterfly mavharuvhu haakonzeri nekushata kwerubha mhando, asi kuti:
Iyo "wedge-shaped gap" panosangana chigaro chevharuvhu nemuviri haina kunyatsogadziriswa.
Kunyura kwemvura kwenguva refu → microcracks → kuputika kwerabha uye kuputika
Nhanho yekupedzisira ndeyekutadza kwenzvimbo kwechigaro chevharuvhu.
3. Sei Resilient Butterfly Mavharuvhu achishandiswa pasi rose?
Kunze kwekudhura kwakaderera, zvikonzero zvitatu zvakadzika ndezvi:
3.1. Kunyanya kukanganisa kukanganisa
Kuenzaniswa nezvisimbiso zvesimbi, zvisimbiso zverabha, nekuda kwekunaka kwazvo, zvine kushivirira kwakasimba kwekumisikidza kutsauka uye kushoma deformation.
Kunyangwe pombi prefabrication zvikanganiso, flange kutsauka, uye kusaenzana bhaudhi kushushikana kunotorwa nekunyungudika kwerabha (zvechokwadi, izvi zvishoma uye hazvidiwe, uye zvinokonzeresa kumwe kukuvadzwa kwepombi nevharuvhu nekufamba kwenguva).
3.2. Yakanyanya kuchinjika kune system kudzvanywa kushanduka
Zvisimbiso zverabha hazvisi se "brittle" sezvisimbiso zvesimbi; ivo vanongodzorera tambo yekuisa chisimbiso panguva yekumanikidza kuchinja.
3.3. Mutengo wakaderera wehupenyu hwese
Hard-sealed butterfly mavharuvhu anogara akasimba, asi mutengo uye mutengo weactuator wakakwira.
Mukuenzanisa, iyo yakazara mari yekudyara uye yekuchengetedza mitengo yeResilient Butterfly Valves inowedzera mari.
4. Mhedziso
Kukosha kweResilient Butterfly Valveshakusi "kuiswa chisimbiso" chete
Soft-sealed butterfly mavharuvhu angaite seakapusa, asi zvigadzirwa zvemhando yepamusoro zvinotsigirwa neinjiniya-giredhi yakasimba pfungwa, kusanganisira:
Precise compression zone dhizaini
Kudzora kuita kwerabha
Geometric kuenzanisa yevharuvhu muviri uye dzinde
Nzira yekugadzira chigaro chevhavha
Torque management
Life cycle test
Izvi ndizvo zvinhu zvakakosha zvinotaridza kunaka, kwete "zita rechinhu" uye "chimiro chechimiro".
CHERECHEDZA:* DATA inoreva iyi webhusaiti:https://zfavalves.com/blog/key-factors-that-determine-the-quality-of-soft-seal-butterfly-valves/
Nguva yekutumira: Zvita-09-2025