Mavharuvhu anodzora mavharuvhu, anowanzo kunzi PRV mavharuvhu, zvinhu zvakakosha mumasisitimu ekudzivirira moto, kunyanya muzvivakwa zvine ACM cladding. Aya mavharuvhu akagadzirirwa kuchengetedza kusagadzikana kwemvura kumanikidza, izvo zvakakosha pakuita kuti mashandiro ekushanda uye kusangana nemamiriro ekuchengetedza moto. Zvinoenderana neongororo yakaitwa neLos Angeles City Fire Dhipatimendi reMoto, inopfuura 75% ye413 yakaedzwa kudzvanywa inodzora mavharuvhu inoda recalibration kana kugadzirisa, zvichisimbisa kukosha kwavo kwakakosha mukuchengetedza kuvimbika kwehurongwa. Zvakare, iyo National Fire Protection Association (NFPA) inomanikidza kuyedza mapuroteni emavharuvhu aya kudzivirira kuwandisa uye kuvimbisa kuchengetedzwa panguva dzenjodzi. Akavimbika mhinduro, akadaimavharuvhu ekumanikidzauye hydrant valve international outlet fittings, zvakakosha pakuchengetedza hupenyu nemidziyo muzviitiko zvine chekuita nemoto.

Key Takeaways

• Pressure regulating valves (PRVs)chengetedza dzvinyiriro yemvura yakatsiga muzvirongwa zvemoto. Izvi zvinovabatsira kushanda zvakanaka panguva dzenjodzi.
• Kuongorora nekugadzirisa maPRVkazhinji inokosha zvikuru. Inowana matambudziko nekukurumidza, inomisa kukundikana, uye inochengetedza vanhu.
• Zvivakwa zvine ACM cladding zvinoda maPRV kusangana nemitemo yemoto. Vanoponesa hupenyu uye vanodzivirira zvivako kubva kune ngozi dzemoto.

Basa reKudzvanyirira Kudzora Mavharuvhu muKudzvanya Kwemoto

Chii chinonzi Pressure Regulating Valve?

A pressure regulating valve chinhu chakasarudzika chakagadzirirwa kudzora uye kuchengetedza isingachinjiki kudzvinyirirwa kwemvura mukati mehurongwa. Inovimbisa kuti kudzvinyirira kunoramba kuri mukati memiganhu yakachengeteka uye yekushanda, pasinei nekushanduka kwemvura. Aya mavharuvhu akakosha mumasisitimu ekudzivirira moto, uko kugadzikana kwemvura kunokosha pakuita zvinobudirira panguva yekukurumidzira.

Mavharuvhu anodzvinyirira anouya mumhando dzakasiyana, imwe neimwe yakarongedzwa kune chaiyo maapplication. Semuyenzaniso, iyo 90-01 modhi inoratidzira yakazara chiteshi dhizaini inochengetedza yakatsiga yakadzika kudzika, ichiita kuti ive yakanaka kune yakakwirira-kuyerera masisitimu. Kune rimwe divi, iyo 690-01 modhi, ine yakaderedzwa dhizaini dhizaini, inopa mashandiro akafanana asi inokodzera zvirinani kune masisitimu anoda yakaderera kuyerera. Tafura iri pazasi inoburitsa izvi zvehunyanzvi zvehunyanzvi:

Model	Tsanangudzo
90-01	Yakazara chiteshi vhezheni yevhavha inoderedza kumanikidza, yakagadzirirwa kuchengetedza yakatsiga yakadzika kudzika kudzvinyirira.
690-01	Yakaderedzwa chiteshi vhezheni yekumanikidza kuderedza valve, zvakare inochengetedza yakadzika kudzika zvinobudirira.

Aya mavharuvhu akakosha pakuona kuti masisitimu ekudzima moto anoshanda nemazvo pasi pemamiriro akasiyana.

Mashandiro Anoita Kudzvanyirira Mavharuvhu muMoto Suppression Systems

Mavharuvhu ekudzora mavharuvhu anoita basa rakakosha mukatimoto kudzvinyirira masisitimunekudzora kuyerera kwemvura uye kumanikidza. Kana hurongwa hwekudzivirira moto hunoita, vharuvhu inogadzirisa kudzvanywa kwemvura kuti ienderane nezvinodiwa nehurongwa. Kugadziriswa uku kunodzivirira over-pressurization, iyo inogona kukuvadza hurongwa kana kuderedza kushanda kwayo.

Ivhavha inoshanda kuburikidza nekubatanidzwa kwemukati maitiro, kusanganisira diaphragm uye chitubu. Mvura painopinda muvharuvhu, diaphragm inonzwa kusimba. Kana dzvinyiriro ikapfuura muganhu wakatemerwa, chitubu chinodzvanya, chichideredza kuyerera uye kudzoreredza kudzvinyirirwa padanho rinodiwa. Iyi nzira inoita kuti hurongwa uhu hupe mvura pahudzvanyiriri hwakakwana hwekudzima moto.

Nekuchengetedza kusagadzikana kwemvura kudzvinyirira, mavharuvhu ekudzora mavharuvhu anowedzera kuvimbika uye kugona kwemasisitimu ekudzima moto. Vanova nechokwadi chokuti mvura inosvika munzvimbo dzose dzechivako, kunyange idzo dziri pakakwirira kana kuti dziri kure netsime remvura. Kugona uku kunonyanya kukosha muzvivakwa zvine ACM cladding, uko nekukurumidza uye kunoshanda kudzvanya moto kunogona kudzivirira njodzi inokuvadza.

Njodzi dzeMoto muACM Cladding Systems uye Kukosha kwePRVs

Kunzwisisa Njodzi dzeMoto muACM Cladding

Aluminium Composite Material (ACM) masisitimu ekupfekedza anoisa njodzi dzakakura dzemoto nekuda kwekuumbwa kwawo. Mapaneru ane polyethylene (PE) cores, kunyanya ayo ane low-density PE (LDPE), anopisa zvakanyanya. Tsvagiridzo yakaitwa naMcKenna et al. yakaratidza kuti LDPE cores inoratidza peak heat release rates (pHRR) kusvika ku55 times yakakwirira kudarika yakachengeteka ACM panels, inosvika 1364 kW/m². Uyu mufananidzo unotyisa unoratidza kukurumidza kupararira kwemoto muzvivako zvine zvipfeko zvakadaro. Pamusoro pezvo, chidzidzo ichi chakarekodha kuburitswa kwekupisa (THR) kwe107 MJ/m² yeLDPE cores, zvichisimbisa kugona kwavo kupisa moto wakakura.

Yepakati-chiyero bvunzo dzakaitwa naGuillame et al. yakaratidza kuti ACM mapaneru ane PE cores anoburitsa kupisa pamitengo yakakwira zvakanyanya zvichienzaniswa nezvimwe zvinhu. Uyu mutsauko unobva kune yakakwira polymer yemukati muPE cores, iyo inomhanyisa kupisa. Saizvozvovo, Srivastava, Nakrani, neGhoroi vakashuma pHRR ye351 kW/m² yemasampuli eACM PE, zvichisimbisa kupisa kwawo. Izvi zvakawanikwa pamwechete zvinoratidzira njodzi dzakawedzera dzemoto dzine chekuita neACM cladding masisitimu, kunyanya ayo ane PE cores.

Zvivakwa zvine ACM cladding zvinosangana nematambudziko akasiyana panguva yenjodzi yemoto. Iko kukurumidza kupisa kusunungurwa uye kupararira kwemirazvo kunogona kukanganisa nzira dzekubuda uye kukanganisa kuedza kwekudzima moto. Zvinoshandamoto kudzvinyirira masisitimu, yakashongedzerwa nezvinhu zvinovimbika semavharuvhu ekudzora, zvakakosha kudzikisa njodzi idzi uye kudzivirira hupenyu.

Mabatiro Anodzora Mavharuvhu Anoderedza Moto Njodzi muACM Cladding Systems

Mavharuvhu ekumanikidzakuita basa rakakosha mukudzikisa njodzi dzemoto muzvivakwa zvine ACM cladding. Aya mavharuvhu anovimbisa kusagadzikana kwemvura kudzvinyirirwa mukati mehurongwa hwekudzivirira moto, zvichiita kuti mvura isvike kunzvimbo dzakakanganisika. Muzvivakwa zvine ACM cladding, uko moto unogona kukwira nekukurumidza, kuchengetedza yakanyanya kudzvanywa kwemvura kwakakosha pakudzora mirazvo nekudzivirira imwe kukuvara.

Kana moto udzivirirwa system ichishanda, iyo yekumanikidza inodzora vharafu inogadzirisa kuyerera kwemvura kuzadzisa zvinodiwa nehurongwa. Kugadziriswa uku kunodzivirira over-pressurization, iyo inogona kukuvadza hurongwa kana kuderedza kushanda kwayo. Nokuendesa mvura pakumanikidzwa kwakarurama, valve inovimbisa kuti sprinklers uye hoses inoshanda zvakanaka, kunyange muzvivako zvepamusoro-soro kana nzvimbo dziri kure nemvura.

Mavharuvhu ekudzora mavharuvhu anowedzerawo kuvimbika kwemasisitimu ekudzivirira moto muzvivako zve ACM-clad. Kugona kwavo kuchengetedza kugadzikana kwakagadzikana kunovimbisa kuti mvura inosvika munzvimbo dzese, kusanganisira idzo dziri kumusoro. Kugona uku kwakakosha pakurwisa moto unopfuta nemakori anobvira emapanera eACM. Nekudzikamisa njodzi dzine chekuita nekukurumidza kupisa kuburitswa uye kupararira kwemoto, mavharuvhu aya anobatsira munzvimbo dzakachengeteka dzekuvaka.

Uyezve, mavharuvhu anodzvinyirira anobatsira zvivakwa kutevedzera zviyero zvekuchengetedza moto. Mitumbi inodzora kazhinji inoraira kushandiswa kwemavharuvhu aya mumasisitimu ekudzima moto kuti ive nechokwadi chekushanda kwakafanana panguva dzenjodzi. Kuita kwavo hakungochengetedze hupenyu chete asiwo kunodzivirira midziyo kubva mukukuvadzwa kukuru kwemoto.

Zano:Kuisa mavharuvhu anodzora mavharuvhu mumasisitimu ekudzivirira moto chiyero chinoshanda chinoderedza zvakanyanya njodzi dzemoto muzvivakwa zvine ACM cladding. Kugara uchigadzirisa uye kuongorora kunowedzera kuwedzera kushanda kwavo, kuve nechokwadi chekushanda kwakakwana kana zvichinyanya kukosha.

Mabhenefiti eKudzvinyirira Kudzora Mavharuvhu muACM Cladding Systems

Kuchengetedza Kusagadzikana Kwemvura Kudzvinyirira Panguva Yekukurumidzira

Mavharuvhu ekudzora mavharuvhu anovimbisa kugadzikana kwemvura panguva yekukurumidzira kwemoto, chinhu chakakosha mukudzima moto kunoshanda. Aya mavharuvhu anogadzirisa mafambiro emvura kuti aenderane nezvinodiwa nehurongwa, kudzivirira kuchinjika kunogona kukanganisa kushanda. Muzvivakwa zvine ACM cladding, uko moto unogona kupararira nekukurumidza, kuchengetedza kugadzikana kwakatsiga kunoita kuti mvura isvike munzvimbo dzese, kusanganisira nzvimbo dzakakwirira kana nzvimbo dziri kure.

Nekuunza mvura pakumanikidzwa kwakaringana, mavharuvhu aya anowedzera kushanda kwezvinopfachukira nemahosi, zvichiita kuti vanodzima moto vakwanise kudzora mirazvo zvakanyanya. Basa ravo rinotonyanya kukosha muzvivakwa zvepamusoro-soro, uko giravhiti-inokonzeresa kudzvanywa kwakasiyana-siyana kunogona kutadzisa kuedza moto. Kuvimbika kudzorwa kwekumanikidza kunovimbisa kuti masisitimu ekudzima moto anoshanda zvisina musono, achichengetedza hupenyu nemidziyo panguva yenjodzi.

Kudzivirira Kuwedzeredza-Kudzvinyirira uye Kuwedzera Kuvimbika KweSitimu

Mavharuvhu anodzvinyirira anodzivirira kudzvinyirira zvakanyanya, izvo zvinogona kukuvadza masisitimu ekudzvinyirira moto uye kuderedza kuvimbika kwavo. Zvidzidzo zvenhoroondo uye data remumunda rinoratidza kushanda kwavo:

• Zvidzidzo zvemumunda zvinoratidza kutadza kukuru kwe 0.4% chete pagore pamusoro penguva yekuongorora yemwedzi makumi matatu, ine 95% yekuvimba.
• Regression ongororo inoratidza kuti mavharuvhu aya anowedzera kuvimbika nekufamba kwenguva, achisimbisa kusimba kwavo uye kugona kwekudzivirira.

Nekuchengetedza kumanikidza kunoenderana, mavharuvhu aya anoderedza kusakara uye kubvaruka pazvikamu zvehurongwa, achiwedzera hupenyu hwawo uye nekuona kuita kwakavimbika. Kugona kwavo kudzivirira kuwandisa zvakare kunoderedza njodzi yekutadza kwehurongwa panguva dzakaoma, kuwedzera kuvimbika kwese.

Kuve nechokwadi chekutevedzera neMoto Safety Standards

Mavharuvhu anodzora mavharuvhu anoita basa rakakosha mukubatsira zvivakwa kuzadzisa zviyero zvekuchengetedza moto. Mitumbi inodzora seNational Fire Protection Association (NFPA) inoraira kushandiswa kwavo mukatimoto kudzvinyirira masisitimukuve nechokwadi chekumanikidza kunoenderana uye kuyerera.

Uchapupu	Tsanangudzo
NFPA 20 Kutevedzera	Mavharuvhu ekudzora mavharuvhu akakosha pakuchengetedza kudzvanywa uye kuyerera mumasisitimu ekudzivirira moto, sekutsanangurwa kwazvinoitwa muNFPA 20 zviyero.
Safety Device Chinodiwa	NFPA 20 inoraira kuisirwa kwePressure Relief Valves kudzivirira kuwandisa mumasisitimu ekudzivirira moto.

Pamusoro pezvo, kuyedza uye masevhisi masevhisi emavharuvhu aya anotevera NFPA yekumisikidza zviyero, kuve nechokwadi chekuteedzera mitemo yekuchengetedza moto. Chiitiko chemoto cha1991 paOne Meridian Plaza chakasimbisa kukosha kwekumisikidzwa kwakaringana kuderedza mavharuvhu mukuchengetedza kumanikidzwa kwakakwana kwekuedza kwemoto. Nekutevedzera zviyero izvi, mavharuvhu anodzora dzvinyiriro haingowedzere kuchengetedzeka asiwo inodzivirira zvivakwa kubva kumatambudziko emutemo uye emari ane chekuita nekusatevedzera.

Maintenance and Compliance for Pressure Regulating Valves

Kukosha Kwenguva Dzokuongorora uye Kuchengetedza

Nguva dzose kuongorora uye kugadzirisayedzvinyiriro inodzora mavharuvhu akakosha pakuona kuvimbika kwavo uye kushanda. Kuregeredza izvi zvakakosha zvinokonzeresa zvinogona kutungamira kumhedzisiro yakaoma, kusanganisira kutadza kwemidziyo uye njodzi dzekuchengetedza. Semuyenzaniso:

• Ivhavha isingashande panguva yekuongorora yakakonzera kubuda kwekemikari ine njodzi, kuburitsa vashandi kune zvinhu zvine muchetura uye zvichikonzera hutano hwakakomba.
• Vashandisi vemidziyo yakasarudzika vanofanirwa kukoshesa kugadzirisa, kugadzirisa, uye kuongorora mavharuvhu ekuchengetedza kudzivirira tsaona.

Kugadzirisa nguva nenguva kunobatsira kuona kupfeka, ngura, kana kudonha kungangove kusati kwapinda mumatambudziko makuru. Maitiro akanakisa ekuchengetedza mavharuvhu aya anosanganisira:

Best Practice	Tsanangudzo
Kuongorora Nguva Dzose	Ziva kupfeka, ngura, kana kuvuza kuburikidza ne periodic cheki.
Calibration	Chengetedza iyo chaiyo setpoint ne calibrating valve nguva nenguva.
Kuchenesa uye Kuzora	Chenesa uye zora zvikamu zvinofamba sekurudziro yemugadziri.
Kutsiviwa Kwezvikamu Zvakasakara	Tsiva zvinhu zvakakuvadzwa nekukasira kuti uve nechokwadi chekushanda kwakakwana.

Nekutevedzera maitiro aya, vatariri vezvivakwa vanogona kuwedzera hupenyu hwemavharuvhu ekudzora mavharuvhu uye kuwedzera kuchengetedzwa kwese kwemasisitimu ekudzvinyirira moto.

Kuomerera kune Fire Safety Regulations yeACM Cladding Systems

Kutevedzera mitemo yekuchengetedza moto kwakakosha kune zvivakwa zvine ACM cladding system. Mitumbi inodzora inorayira kushandiswa kwemavharuvhu ekumanikidzakuve nechokwadi chekugadzikana kwemvura panguva dzenjodzi. Kutevera nhungamiro dzakasimbiswa kunoderedza njodzi uye kunoita kuti sisitimu ishande nemazvo kana ichidiwa zvakanyanya.

Tekinoroji bulletins inotsanangura akati wandei maitiro akanakisa ekuteerera:

Best Practice	Tsanangudzo
Zvakarurama Zvinodiwa Kudzvinyirira	Chengetedza kudzvanya kuri kukwira kumusoro sezviri kutaurwa nevagadziri.
Maonero Akakodzera	Isa mavharuvhu nenzira kwayo kudzivirira nyaya dzekuita.
Secure Mounting	Deredza vibrations uye mechanical stress kuburikidza nekuchengetedzwa kwakachengeteka.
Strainers uye Mafirita	Isa kumusoro kwerwizi kudzivirira kukuvara kwemarara uye kuchengetedza kuyerera.

Pamusoro pekuisa, kuongorora nguva dzose uye kutevedzera mitemo yekuchengetedza kuchengetedza kwakakosha. Matanho aya haango chengetedza hupenyu nemidziyo chete asi anobatsirawo kudzivirira matambudziko emutemo uye emari ane chekuita nekusatevedzera. Vatariri vezvivakwa vanofanira kuramba vakangwarira mukushandisa zviyero izvi kuti vave nechokwadi chekuchengetedzwa kwevanogara uye kutendeseka kwezvirongwa zvekudzivirira moto.

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Mavharuvhu ekumanikidza anoshanda sechinhu chakakosha mukuchengetedza moto kune ACM cladding masisitimu. Ivo vanochengetedza kusagadzikana kwemvura kudzvinyirirwa, kuve nechokwadi chekuti masisitimu ekudzima moto anoshanda zvinobudirira panguva dzekukurumidzira. Basa ravo mukuderedza njodzi dzemoto uye kusangana nemiyero yakaomesesa yekuchengetedza haigone kuwedzeredzwa. Mamaneja ezvivakwa anofanirwa kukoshesa kuiswa kwavo uye kuchengetedza kuchengetedza hupenyu nemidziyo.

FAQ

Ndeupi hurefu hwehupenyu hwevhavha inodzvinyirira mumagetsi ekudzvinyirira moto?

Upenyu hwevhavha inodzvinyirira inoenderana nekushandiswa uye kugadzirisa. Nekuongororwa nguva dzose uye kutarisirwa kwakakodzera, mavharuvhu aya anogona kugara makore 10-15 kana kupfuura.

Kangani mavharuvhu anodzora kumanikidza anofanira kuongororwa?

Vanamazvikokota vanokurudzira kuongorora mavharuvhu ekudzora kumanikidza gore negore.Kuongororwa nguva dzosekubatsira kuona kupera, ngura, kana kuvuza, kuve nechokwadi chekushanda kwakakwana panguva yenjodzi yemoto.

Mavharuvhu anomanikidza anosungirwa kune zvivakwa zvine ACM cladding?

Hongu, mitemo yakawanda yekuchengetedza moto inoda kumanikidza kudzora mavharuvhu muzvivakwa zvine ACM cladding. Aya mavharuvhu anovimbisa kusagadzikana kwemvura kudzvinyirirwa, kuwedzera moto kudzvinyirira system kuvimbika.

Cherechedza:Gara uchitarisa makodhi edziviriro emoto emunharaunda uye zviyero kuti uve nechokwadi chekutevedzera zvinodiwa nemavharuvhu ekumanikidza.