Butterfly mavharuvhu anoshandiswa kutanga, kumisa kana kudzora kuyerera kwezvinwiwa kana magasi kuburikidza nemapombi. Ivo vanowana zita ravo kubva kune mapapiro-senge disc inotenderera mukati memuviri wevharuvhu, yakafanana nekufamba kweshavishavi. Pakati pemarudzi akasiyana-siyana evhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhasheni,mavharuvhu eshavishavi (HPBV) uye concentric butterfly mavharuvhu ndiwo maviri anowanzo dhizaini. Kuenzanisa uku kunopaza misiyano pakati pezviviri kubva kune akawanda mativi kuti ajekese mabasa avo mumaindasitiri nemanisipala zvikumbiro.
| Feature | Concentric Butterfly Valve | High-Performance Butterfly Valve |
| Design | Central stem uye disc | Offset hunde ine chigaro chesimbi |
| Kuisa Chisimbiso | Chigaro chakapfava elastomeric | RPTFE chigaro |
| Pressure Rating | Kusvikira ku250 PSI | Kusvikira ku600 PSI |
| Temperature Rating | Kusvikira ku180°C (356°F) | Kusvikira ku260°C (536°F) |
| Pfeka & Kubvarura | Yakakwira nekuda kwekubata chigaro | Yakaderera nekuda kweiyo offset dhizaini |
| Application Kukodzera | Low-pressure fluids | Medium-pressure, high-temp fluids |
| Mutengo | Lower | Higher |
1. Kugadzira uye Kuvaka
Musiyano wepakati pakati pekudyara butterbly mavhavha uye dzakakwirira-masendimita dzemakirita renhema, zvakananga chinzvimbo cheValve chikwama nemuviri wemavara uye zvigadzirwa zvinoshandiswa.
1.1 Concentric Butterfly Mavharuvhu
Iyo concentric dhizaini inozivikanwa se "zero offset" kana "resilient chigaro" vharafu, kubatanidza hunde yevharuvhu uye vharuvhu disc zvakananga pakati pemuviri wevharuvhu uye pombi inobhowa. Kurongeka kwepakati uku hakuna kutsauka.
1.1.1 Disc Movement
Iyo dhisiki inotenderera 90 ° ichitenderedza axis yehunde yevharuvhu, uye inofamba kubva payakavhurika zvizere (yakafanana nepombi) kusvika yakavharwa zvizere (perpendicular kune pombi) mukati mekufamba kwayo.
1.1.2 Kuisa Chisimbiso
Chisimbiso chinowanikwa nekupindirana pakati pemucheto wevhavha disc uye resilient rubber-like valve seat (yakadai seEPDM, acrylic kana fluororubber) inogadzirisa mukati memuviri wevhavha.
1.1.3 Zvishandiso
Muviri wevharuvhu unowanzo gadzirwa neakakwirira-simba uye anodzivirira marara senge simbi yakakandwa, ductile simbi kana kunyange simbi isina simbi yezvishandiso zvisinganyanyi kudiwa, nekuti chigaro chevhavhavha yerabha chinodzivirira kusangana kwemvura nemuviri wevharuvhu.
Iyo disc inogona kunge iri simbi isina tsvina, aluminium bronze, yakavharwa ductile iron, kana yakazara yakazara nesimbi, zvichienderana nekuora kwemvura.
1.2 High-Performance Butterfly Mavharuvhu
Kazhinji kaviri-offset dhizaini ine maviri makiyi ekubvisa:
Dzinde iri kuseri kwe disc kwete nepakati pe disc, uye
Iyo dhisiki uye stem musangano inobviswa kubva pakati peiyo pombi bore.
Mamwe mavhezheni epamberi anosanganisira katatu offset, asi kaviri offset ndiyo yakajairwa pamhando dzepamusoro-soro.
1.2.1 Disc Movement
Nekuda kweiyo offset, disc inotenderera mune cam-sechiito, ichideredza kusangana nechigaro.
1.2.2 Kuisa Chisimbiso
Chigaro chacho chakagadzirwa nezvinhu zvinogara zvakasimba, zvakadai seTeflon yakasimbiswa, kuti imirisane nepamusoro-soro uye tembiricha. Kusiyana nechigaro cherabha muvharuvhu yakadzika, chisimbiso chakasimba uye chishoma chinotsamira pane deformation.
1.2.3 Zvishandiso
Muviri nedhisiki zvinogadzirwa nesimbi dzakasimba, senge simbi isina simbi, kabhoni simbi, kana alloys, kuti zvikwanise kutsungirira mamiriro akaomarara.
1.3 Pfupiso: Dhizaini Zvinokonzeresa
Kureruka kweiyo concentric valve inoita kuti ive isina kureruka uye compact, ichiita kuti ive yakanaka yekuisa yakananga. Nekudaro, kuvimba kwayo nechigaro cherabha chinoremara kunoganhurira kuchinjika kwayo.
Iyo yekubvisa dhizaini uye yakasimba zvinhu zvemavharuvhu epamusoro-inoshanda zvinosimudzira kusimba kwavo uye kuchinjika, asi pamutengo wekuwedzera kuoma uye uremu.
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2. Kugona Kuita
Kuita ndiyo inonyanya kushanduka yeaya mavharuvhu uye iyo iyo vashandisi vanokoshesa uye vane hanya nayo zvakanyanya. Kunyanya, inoongororwa maererano nekumanikidzwa, tembiricha, kuisa chisimbiso uye hupenyu hwebasa.
2.1 Concentric Butterfly Mavharuvhu
2.1.1 Pressure Ratings
Concentric butterfly mavharuvhu anogona kazhinji kushingirira kusvika kuPN16, asi izvi zvinosiyana zvichienderana nehukuru uye zvinhu. Pamusoro pekumanikidza uku, chigaro cherabha chinogona kukanganisa kana kukundikana.
2.1.2 Tembiricha Ratings
Iyo yakanyanya tembiricha i356 ° F (180 ° C), inoganhurwa nemiganhu yekupisa yerubha kana chigaro chePTFE. Kupisa kwakanyanya kunoshatisa mashandiro e elastomer uye kukanganisa kuiswa chisimbiso.
2.1.3 Kuisa chisimbiso
Inogona kupa kuvharwa kwakavimbika mumagadzirirwo akaderera, asi kupesana kunopfuurira pakati pevhavha disc uye chigaro chevhavha chinokonzera kupfeka, izvo zvichaderedza kushanda.
2.1.4 Kupopota
Sezvo mavharuvhu e butterfly akanyanya kukodzera kuvhurika nekuvhara kwakazara, kana akashandiswa pakuyerera kwemutemo, kutenderera kwenguva refu kunomhanyisa kupfekedzwa kwechigaro chevhavha, zvichiita kuti ive shoma uye yakasimba.
2.1.5 Kugara kwenguva refu
Kuve zvakanyanya elastic, simbi kana yakasimbiswa zvigaro zvevharuvhu zvinogara zvakanyanya kupfuura rabha. Iyo offset dhizaini inowedzera kuwedzera hupenyu hwesevhisi nekudzikamisa kupokana.
2.2 Yepamusoro-inoshanda shavivhavharuru
2.2.1 Chiyero chekumanikidza
Nekuda kwechimiro chayo chakaomarara uye dhizaini yekumisa iyo inoderedza kushushikana pachigaro chevharuvhu, inogona kumirisana nekumanikidza kusvika kuPN16.
2.2.2 Tembiricha rating
Sezvo chigaro chevharuvhu chichishandisa RPTFE, chinogona kushanda zvinobudirira pakupisa kusvika ku536°F (280°C).
2.2.3 Kuisa chisimbiso
Nekuda kwekunyatsokwana kweiyo offset valve disc uye chigaro chevharuvhu yakasimba, kuvuza kunenge zero uye kazhinji kunenge kuri pedyo nekuvharwa kwemhepo. Izvi zvinoita kuti ive yakakodzera kune zvakakosha maapplication.
2.2.4 Kubhoekana
Kuvaka uye zvinhu zvinoshandiswa mu-high-performance butterfly mavharuvhu zvinovagonesa kunyatso kudzora kuyerera kunyangwe pakumanikidzwa kwakanyanya. Kudzikisira chigaro kubata kunoderedza kupfeka uye kuchengetedza chisimbiso kutendeseka pane akawanda macycle.
2.2.5 Kugara kwenguva refu
Kuve zvakanyanya kusimba, simbi kana zvigaro zvakasimbiswa zvinogara zvakanyanya kupfuura rabha. Iyo offset dhizaini inowedzera kuwedzera hupenyu hwesevhisi nekudzikamisa kupesana.
2.3 Pfupiso: Maonero ekuita
Concentric mavharuvhu akakodzera kuderera-kudzvinyirira, mamiriro akagadzikana, asi anokundikana papakati uye nepamusoro kudzvinyirira.
Mavharuvhu epamusoro-soro anopa kuvimbika kwepamusoro uye hupenyu hwebasa pamutengo wepamusoro wekutanga.
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3. Zvikumbiro
Sarudzo pakati pe midline butterfly valves uye high-performance butterfly mavharuvhu zvinoenderana nezvinodiwa chaizvo zvehurongwa hwavakaiswa.
3.1 Concentric Butterfly Mavharuvhu
Kune yakaderera kusvika pakati nepakati pressure/tembiricha masisitimu uko mutengo nekureruka ndizvo zvinonyanya kukosha.
Mashandisiro Akawanda:
-Mvura neMvura: Midziyo yemvura yemadhorobha, madiridziro uye masisitimu esuweji anobatsirwa kubva muhupfumi hwavo uye kuparadzaniswa kwemvura.
- Chikafu neMishonga: Zvigaro zverabha zvinodzivirira mvura inodziya kubva pakusvibiswa nemuviri wevharuvhu.
-Kugovera Gasi: Mitsetse yakaderera-kudzvanywa gasi inoshandisa iyo yekubatidza / kudzima kutonga.
-Kudzivirirwa kweMoto: Sprinkler masisitimu anotora mukana wekukurumidza kushanda kwayo uye kuvimbika kune epakati kumanikidzwa.
- Yakaderera-Pressure Steam: Yehutsi inosvika 250 PSI uye 350 ° F.
3.2 High-Performance Butterfly Mavharuvhu
Zvekumanikidzwa kwakaderera-pakati kana masisitimu akakosha anoda kunyatsojeka uye kusimba.
Mashandisiro Akawanda:
- Oiri neGasi: Inobata makemikari ane hutsinye, petrochemicals, uye mamiriro ekunze ane kudzvinyirirwa kwakanyanya uye mvura inoparadza.
-Kugadzira Simba: Inogadzirisa yakakwira-kudzvanya chiutsi uye inotonhorera mvura mumaturbine uye boilers.
-Kemikari Kugadziridza: Inorambira mvura inoparadza uye inochengetedza kuvharika kwakasimba munzvimbo dzisina kugadzikana.
- HVAC: Yemahombe masisitimu anoda chaiyo kuyerera kwekutonga.
-Kuvaka ngarava: Inomira mamiriro emugungwa uye yakakwirira-kudzvinyirira fluid manejimendi.
3.3 Kupindirana Kwekushandisa uye Misiyano
Nepo mavharuvhu ese ari maviri achidzora kuyerera, mavharuvhu akabatikana anotonga munzvimbo dzisingadhuri, dzisinganyanyi kudiwa, nepo mavharuvhu ekushanda kwepamusoro achisarudzwa kumaindasitiri uko kutadza kunogona kuve nemhedzisiro.
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4. Mafungiro Ekushanda
Pamusoro pekugadzira uye kushandisa, zvinhu zvinoshanda senge kuisirwa, kugadzirisa, uye sisitimu yakakodzera yekubatanidza inoitawo basa.
4.1 Kuiswa
- Concentric: Yakareruka kuisirwa nekuda kwehuremu huremu uye nyore flange kuenderana.
-Kushanda kwepamusoro: Kurongeka chaiko kunodiwa nekuda kweiyo offset dhizaini, uye huremu hwayo hunoda rutsigiro rwakasimba.
4.2 Kuchengeta
- Concentric: Maintenance inotarisa pakutsiva chigaro cherabha, iyo inokurumidza uye isingadhuri kugadzirisa nzira. Nekudaro, kugara uchipfeka kunogona kuwedzera kuderera mune yakakwirira-kutenderera masisitimu.
-Kushanda kwepamusoro-soro: Kugadzirisa kunowanzova kushoma nekuda kwechigaro chakasimba, asi kugadzirisa (semuenzaniso, kutsiva chigaro) kunodhura uye kwehunyanzvi, kazhinji kunoda vashandi vehunyanzvi vane maturusi ehunyanzvi.
4.3 Kudonhedza Kudzvinyirira
- Concentric: Madhisiki epakati anogadzira mhirizhonga kana akavhurika zvishoma, achideredza kugona mukupuruzira maapplication.
-Kushanda Kwepamusoro: Offset discs inovandudza kuyerera maitiro, kuderedza cavitation uye kudonha kwekumanikidza, kunyanya pakumhanya kwakanyanya.
4.4 Kuita
Mavharuvhu ese ari maviri anogona kushandiswa nemanyorero, pneumatic, kana emagetsi actuators, asi mavharuvhu ekushanda kwepamusoro anowanzo kupetwa neadhirowa epamusoro ekunyatso otomatiki mumaindasitiri.
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5. Mari uye Hupenyu Cycle Analysis
5.1 Mutengo wekutanga
Concentric mavharuvhu akachipa zvakanyanya nekuti ari nyore kugadzira uye kushandisa zvinhu zvishoma. Izvi hazvisizvo nemavharuvhu emashavishavi epamusoro-soro.
5.2 Hupenyu Kutenderera Mutengo
Mavharuvhu ekushanda kwepamusoro anowanzo hupfumi nekufamba kwenguva nekuti haawanzo kuchengetedzwa uye kutsiviwa. Mumasisitimu akakosha, kuvimbika kwavo kunogonawo kuderedza kuderera kwemitengo.
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6. Mhedziso: Pfupiso yeZvakanakira uye Zvakaipa
6.1 Concentric Butterfly Valve
6.1.1 Zvakanakira:
- Mutengo-kushanda: Kudzika kwekugadzira uye mutengo wezvinhu zvinopa iyo bhajeti mukana.
- Yakareruka dhizaini: Nyore kuisa, kushanda, uye kugadzirisa, ine mashoma anofamba zvikamu.
- Fluid Isolation: Zvigaro zveRubha zvinodzivirira muviri wevhavha, zvichibvumira kushandiswa kwezvinhu zvakachipa uye kuchengetedza kuchena kwemvura.
- Yakareruka: Yakanakira maapplication uko huremu huri kunetsekana.
6.1.2 Zvakaipa:
- Mutsara wakaganhurwa: Miganho yepamusoro ndeye 250 PSI uye 356 ° F, ichimisa kushandiswa kwayo kune yakaoma mamiriro.
- Inotakurika kupfeka: Kupokana kwechigaro nguva dzose kunogona kutungamira mukuderedzwa kwekuita, zvinoda kugara uchigadziriswa.
- Yakashata yakakwira-kumanikidza throttling kuita: Inorasikirwa nemazvo uye kuisa chisimbiso pasi pekumanikidzwa.
6.2 High-Performance Butterfly Mavharuvhu
6.2.1 Zvakanakira:
- High Capacity: Inogona kubata zviri pakati nepakati kusvika pakakwirira dzvinyiriro (kusvika 600 PSI) uye tembiricha (kusvika 536 ° F).
- Hupenyu Hurefu Hwebasa: Yakaderedzwa zvigaro kupfeka uye zvinhu zvinogara kwenguva refu zvinowedzera hupenyu hwebasa.
- Precision: Yakanakisa throttling uye shutoff kunyangwe mumamiriro ekuda.
-Kusiyana-siyana: Inokodzera huwandu hwakasiyana hwemvura uye nharaunda.
6.2.2 Zvakaipa:
-Mutengo Wepamusoro: Zvinhu zvinodhura uye dhizaini yakaoma inowedzera kumberi kwekudyara.
- Kuoma: Kuisa uye kugadzirisa kunoda humwe hunyanzvi.
- Huremu: Kuvaka kunorema kunogona kunetsa kudzoreredza mamwe masisitimu.
Concentric butterfly mavharuvhu uye high-performance butterfly mavharuvhu anoshanda akapindirana asi nzvimbo dzakasiyana mukudzora mvura. Iyo zero-offset yerubha chigaro dhizaini yeiyo concentric valve inoita kuti ive sarudzo inoshanda uye inokwanisika yezvishandiso zvine mwero sekupa mvura, kugadzira chikafu kana kudzivirira moto. Kana kushanda uye kusimba zvisingagone kutaurirana, ipapo iyo yepamusoro-performance butterfly valve ndiyo mhinduro. Pazvikumbiro zvakavigwa (zvakadai semapaipi epasi pevhu), nzira dzose dziri mbiri dzinogona kushandiswa, asi huremu hwakareruka uye mutengo wakaderera wevharuvhu yeconcentric kazhinji zvinogara kunze kwekunge mamiriro akanyanya achida zvimwe.