Hanyoyi don sarrafa tsarin HVAC Matakan rage amo

Fahimtar Karancin Tsarin HVAC

Tsarin dumama, iska, da kuma iska mai sanyaya (HVAC) suna da mahimmanci don jin daɗin cikin gida, amma aikin su galibi yana haifar da amo mara kyau wanda zai iya hana yawan aiki, ya rushe barci, da lalata ingancin rayuwa. Gunaguni game da amo ya kasance ɗayan mahimman batutuwan mazauna a cikin gine-gine na mazauna da na kasuwanci, yana mai da ƙirar sauti muhimmin ɓangare na aikin injiniya na HVAC. An danganta haɗuwa da yanayin yanayin zafi na HVAC ko da matsakaici a kusa da 35 45 dBA zuwa ƙaruwar damuwa, rage aikin fahimi, da ƙarancin gamsuwa da yanayin cikin gida.

Tushen sauti na HVAC na kowa

Harsunan HVAC sun fito ne daga manyan nau'o'i uku: rawar jiki na inji, tashin hankali na iska, da kuma aiki da kayan aiki. Wadannan sune mafi yawan kafofin a cikin tsarin zama da kasuwanci:

Air Handling Units (AHUs) Flowers da motors samar low-frequency hum da high-frequency whine. Out-of-balance fans amplify wadannan sauti muhimmanci. Fan blade siffar ma yana da muhimmanci: baya-kurkura centrifugal fans ne a zahiri mafi shiru fiye da gaba-kurkura ko propeller iri.
FlT:0 Ductwork vibration FlT: 1 Thin karfe ducts yi murmushi tare da high-gudun iska kwarara ko kayan aiki vibration.
Fans Motors da Blades (FLT: 1) Worn ko rashin daidaituwa blades samar da rhythmic thumping. belts-powered fans ƙara amo daga belts zamewa ko misalignment. VFD-powered Motors iya emit audible whine idan mai ɗaukar mita ba daidai saita.
Compressor Noise (FLT: 0) Compressors na sanyaya suna fitar da wani drone mai ƙarancin mita. Compressors masu maimaitawa galibi suna da amo (6080 dBA a 1 m) fiye da nau'ikan juyawa ko juyawa (5065 dBA). Compressors masu saurin juyawa, na kowa a cikin famfunan zafi na zamani, na iya canza sautin amo yayin aiki.
FLT:0 Refrigidant Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow (FLOW) Flow) Flow (FLOW) Flow (FLOW) Flow) Flow (Flows) Flow (Flow) Flow) F
Dumpper da Register Noise (FLT: 1) Dumppers da ƙananan grilles suna haifar da hayaniya saboda babban saurin iska na gida. Ko da cikakkun rajista masu buɗewa tare da gefuna masu kaifi na iya haifar da sautin tashin hankali sama da saurin fuska 500 ft / min.
Fans da sauti na kwampreso daga masu sanyaya wutar da ke kusa da windows ko patios sune tushen yawan korafin makwabta. Fans na propeller yawanci suna da amo fiye da masu bugun axial tare da manyan allo.

Gano tushen mai rinjaye ta hanyar sauraro, nazarin jijiyoyi, ko kuma auna matakin sauti yana jagorantar zabar matakan rage amo. Sau da yawa akwai haɗuwa da tushe; magance kawai mafi girma zai iya bayyana sautunan sakandare waɗanda suka zama sananne.

Yadda Za a Auna Matsalolin Sautin da Kuma Gano Su

Kafin aiwatar da mafita, ƙididdige amo ta amfani da mita na matakin sauti ko app na wayoyin salula na zamani wanda aka daidaita don auna dBA. Auna a wurare da yawa kusa da kayan aiki da yankuna da aka mamaye. Don ƙarin bincike, yi amfani da mai nazarin lokaci na ainihi (RTA) don kama nau'ikan firikwensin. Kwatanta karatun da matakan da aka ba da shawarar: alal misali, ASHRAE ya ba da shawarar NC-30 don ofisoshin masu zaman kansu da NC-35 don ofisoshi na buɗe. Don vibration, yi amfani da accelerometer don gano ƙarancin mita, wanda ke taimakawa wajen zaɓar mai keɓewa mai kyau. Bayyana matakan tushe don kimanta haɓakawa bayan magani.

Hanyoyi na Ƙarfafa Sautin Sauti

Da zarar an gano tushen, haɗuwa da fasahohin aiki da aiki na iya rage matakan sauti.

1. Ƙarƙashin sauti da kuma shinge na sauti

Yin amfani da kayan da ke ɗaukar sauti a kusa da sassan da ke da hayaniya yana rage raƙuman sauti na iska. Ingancin ya dogara da yawan kayan, kauri, da kuma rufewa mai kyau. Ana sarrafa watsa sauti a cikin iska mafi kyau tare da taro da sha; sauti da aka kawo ta hanyar tsari yana buƙatar keɓewa.

Abubuwan da Aka Yi da Kuma Aikace-aikacen

Mineral Wool Densal da kuma wuta-resistant, ma'adinai ulu sha matsakaici zuwa high-frequency amo. Commonly amfani a ciki kayan aiki da kuma duct lining.
Acoustic Foam (FLT: 1) Yana rage murya da kuma muryar murya. Mafi kyau ga bangon dakin inji amma ba don cikin gidajen bututu ba saboda juriya ta iska. Buɗe-tashin polyurethane foam tare da NRC na 0.750.95 ya zama gama gari.
Vinyl mai nauyin nauyi (MLV) Wani shinge mai sauƙi mai yawa wanda ke toshe watsa sauti. Rufewa a kusa da ducts ko kayan aiki; manufa don sake gyara. Mass a kowace yanki (12 lb / ft2) yana ƙayyade aji na watsa sauti (STC).
FLT:0 Fiberglass Duct Liner (FLT: 1) Ana amfani dashi a saman ducts na ciki don rage hayaniya da rage sautin fashewa. Dole ne ya cika ka'idodin wuta da ƙarancin ƙura (UL 181).
Acoustic Caulk da Sealants (FLT: 1) Cika gibin da ke kewaye da shigar bututun, haɗin bututun, da akwatunan lantarki. Ko da yanki 1% mai buɗewa na iya rage tasirin shinge da 10 dB.

Ka rufe dukkan gibin da ke cikin rufin da aka yi amfani da sauti. Don bangon ɗaki na inji, yi amfani da bango mai rufi biyu tare da matakai masu tsalle-tsalle ko hanyoyin da za su iya jurewa. Yi la'akari da ƙofofi masu sauti tare da ƙofar ƙofar atomatik don kula da amincin rufin. Don kayan aikin waje, yi amfani da shinge masu tsayayya da yanayi kuma ku guji kama danshi.

Nasihu na Gyara

Lokacin da kake kunsa hanyoyin ruwa da MLV, ka rufe madauri da aƙalla inci biyu kuma ka rufe su da tef na sauti. Ka guji matse kayan kwalliyar.

2. Tsarin tsokoki

Vibration yana tafiya daga kayan aiki ta hanyar haɗin gine-gine kuma yana haskakawa a matsayin sauti zuwa ɗakunan da ke makwabtaka da shi.

Zaɓin da kuma girman masu keɓewa

Rubber-In-Shear Mounts (FLT: 1) Ya dace da ƙananan magoya baya da famfo har zuwa 200 lbs. Suna samar da damping don ƙananan zuwa matsakaiciyar jijiya.
Masu keɓewa na bazara tare da tushe na Neoprene Don kayan aiki masu nauyi kamar masu sarrafa iska da masu sanyaya. Tushen neoprene yana hana haɗuwa da ƙarfe zuwa ƙarfe da gajeren juzu'i. Akwai su a cikin buɗewar bazara ko ƙirar gida.
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FLT:0]]Inertia Base Systems A kan matattarar kankare ko tsarin karfe, wanda ake amfani dashi don manyan fans na centrifugal don rage yawan yanayi da ƙara taro. Ƙarin taro yana rage ƙarfin jijiya da haɓaka ingancin keɓewa.

Babban ka'ida: cimma aƙalla 90% na keɓewa don mita sama da 20 Hz. Lissafi da ake buƙata na karkatarwa dangane da saurin aiki na kayan aiki. Misali, fan na 1750 rpm yana buƙatar kusan inci 1.5 na karkatarwa don keɓewa na 95%. Koyaushe haɗa da snubbers na girgizar ƙasa a wuraren da ke da saurin girgizar ƙasa. Tabbatar cewa masu keɓewa ba su gajere ta hanyar tsayayyen layi, bututu, ko haɗin bututu.

Yadda Za a Keɓe Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar

Yi amfani da masu haɗa abubuwa masu sassauƙa (canvas ko roba) tsakanin kayan aiki da kuma tsayayyen bututu don karya hanyar jijiya. Don bututu, shigar da masu rataye na bazara tare da abubuwan neoprene kowane ƙafa 10. Guji rigid ƙarfe; yi amfani da masu rataye na roba a maimakon haka. Tabbatar cewa bututu da bututu ba su tuntuɓi tsarin ginin ta hanyar ramuka. Don bututu wanda ke wucewa ta bango ko bene, yi amfani da ɗamara na bututu tare da hatimi masu ƙarfi.

3. Tsarin Hanyar Hanyar Hanyar Hanyar Hanyar Hawan iska

Sautin iska yana haifar da tashin hankali, saurin gudu, da canje-canje na kwatsam. Tsarin tashoshi mai inganci yana rage amo ba tare da sadaukar da aikin ba. Girman da tsarin da ya dace sune matakan sarrafa amo mafi inganci.

Ka'idojin Aikin Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar Hanyar H

A cikin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin tsarin
Yi amfani da ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙwalwar ƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙuƙu
Acoustic Silencers (Sound Attenuators) ] Sanya silencers da aka riga aka yi a cikin hanyoyin ruwa kusa da mai sarrafa iska. Suna ƙunsar rikice-rikice tare da kayan ɗaukar sauti kuma suna iya cimma raguwa na 1025 dB. Zaɓi bisa ga iyakokin raguwar matsa lamba; silencers masu aiki suna niyya ga ƙananan mita, silencers masu ɗaukar nauyi suna sarrafa matsakaici-mafi girma mita.
Flatter da Register Selection (Flatter) Zaɓi diffusers tare da farfaɗowar farantin fuska da kumfa ta ciki. Flatters masu rarrafe masu laushi sun fi shiru fiye da grilles na rufi. Girman rajista don saurin fuska ƙasa da 500 ft / min. Don kwararar laminar a cikin kiwon lafiya, yi amfani da diffusers HEPA tare da pre- tace don rage tashin hankali.
Layer Lining (FLT: 0) Layer na farko 1015 ƙafa a ƙasa da fan tare da fiberglass ko kumfa don sha hayaniya sauti kafin ya yada. Tabbatar da lining kayan ganawa da lalata da kuma tsaftacewa nagartacce (SMACNA ko NFPA 90A).

Ka rufe dukkan hanyoyin sadarwa tare da tef mai mastic ko UL. Leaks suna haifar da tsawa da rage inganci. Yi amfani da hanyoyin sadarwa na spiral maimakon na rectangular idan zai yiwu; hanyoyin sadarwa na spiral suna da ƙaramin amo da kuma ƙarancin tauri. Don hanyoyin da ke akwai, yi la'akari da ƙara ɓarkewar sauti na ciki ko maye gurbin sassan da tashar layi.

Ci Gaban da Aka Yi a Yin Tsarin Silencer

Sautunan zamani suna amfani da ɗakunan aiki ban da kafofin watsa labaru masu ɗaukar nauyi don ƙaddamar da amo mai ƙarancin mita. Sautunan haɗin suna iya rage ƙarfin sauti gaba ɗaya da 20 dB yayin da suke riƙe da ƙarancin matsa lamba. Don aikace-aikacen ɗaki mai tsabta ko asibiti, yi amfani da sautunan da ke da matsakaici mai tsabta ko ginin karfe mara kyau. Wasu masana'antun suna ba da sautunan da ke da tarkon sauti mai haɗawa wanda za'a iya daidaita shi don aikin filin.

4. Zaɓin Kayan Aiki da Sanya

Idan aka zaɓi kayan aiki da ba su da hayaniya sosai tun daga farko, ba za a bukaci a yi gyara ba.

FLT:0 Duba Matsayin Sauti Duba ƙarfin sauti (dB) ko matsin sauti (dBA) na masana'anta. Fantech, Panasonic, Daikin, da Trane suna ba da samfuran shiru. nemi bayanan ARI Standard 270 don raka'a masu ɗaurewa. Kwatanta matakan amo a yanayin aiki na yau da kullun, ba kawai a cikakken kaya ba.
FlT:0 Variable Speed Drives (VFDs) FlT: 1 Ba da damar injunan fan su yi aiki a hankali yayin da ake buƙatar ƙasa, rage makamashi da amo. Fans masu saurin gudu koyaushe suna aiki a cikakken fashewa, ƙara amo. VFDs kuma suna rage farawa da bugun jini da kuma girgiza inji.
A cikin ɗakin kwana, za a iya sanya kayan aiki a cikin ɗakin kwana da ofis.
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FLT:0]]Motors masu canzawa ta lantarki (ECMs) Ya fi shiru da inganci fiye da injunan mai rarraba mai lalacewa ko na dindindin. Inganta tsofaffin injunan fan zuwa ECM don rage amo nan take. ECM kuma suna kawar da amo na bel-drive a wasu aikace-aikace.
FlT:0 Low-Noise Fans FlT: 1 Backward-kurkura centrifugal fans ne mafi shiru fiye da gaba-kurkura ga wannan aiki. Don axial fans, zabi mafi girma diamita blades gudu a kasa gudun. Yi amfani da mahara karami fans maimakon daya babban fan yada amo tushen.

5. Kula da Shi da Kuma Inganta shi a kai a kai

Aikin da ake yi a kai a kai yana hana hayaniya ta lalace.

FLT:0 Matsakaici masu bushewa suna haifar da lalata ko nika. Bi jadawalin masana'anta don mai ko mai. Yi amfani da lubricant na abinci a cikin ɗakunan abinci na kasuwanci.
FLT:0 Duba Belt Tension da Alignment Kayan belin da aka saki suna haifar da bugun jini da yin ihu. maye gurbin belin da aka lalace da sake daidaita polyes ta amfani da kayan aikin daidaita laser. Polyes da ba a daidaita su ba suna ƙara vibration kuma suna rage rayuwar belin.
FlT:0 Tsabtace fan Blades da Coils [FLT: 1] Tashin datti yana sa fansa su yi rashin daidaituwa kuma yana hana iska ta iska, yana tilasta aiki mai wuya da ƙara amo. Tsabtace coils a kowace shekara tare da tsabtace coil da aka amince; ana iya goge fan blades da masana'anta mai danshi.
Tsarin daidaitawa da daidaitawa yana rage rawar jiki sosai. Yi amfani da nazarin lokaci don gano sanya nauyi. Overbalancing na iya zama mafi muni fiye da babu daidaitawa; hayar ƙwararren masani tare da daidaitawa mai ɗaukar hoto.
FLT:0 Bincika Haɗin Duct
Sauya dampers da actuators da aka yi amfani da su. Damper blades cewa yi rawar jiki ko flutter a cikin iska ya ƙara amo. Inganta zuwa m-blade dampers da low-leakage seals.

Don tsarin tsufa, la'akari da maye gurbin magoya baya da masu jan hankali na centrifugal, waɗanda suke da nutsuwa fiye da zane-zane masu juyawa gaba. Hakanan bincika da sake rufe hanyoyin don hana hayaniya daga faduwa.

Dabarun Rage Sautin Sautin Ga Yanayin Gine-gine na Musamman

Gidajen da Za a Yi Rayuwa

A gidaje, tushen amo mafi yawa sune na'urorin fitarwa na waje, rawar jiki na ductwork, da masu busawa marasa daidaituwa. Ka ba da fifiko ga gano na'urorin waje aƙalla ƙafa 10 daga windows kuma ta amfani da shinge na sauti (shrubs, shinge, ko fuska mai ƙarfi). Don ductwork, tabbatar da cewa an rufe dukkan haɗin gwiwa kuma yi amfani da masu haɗa duct masu sassauƙa a cikin fitowar sarrafa iska. Sanya layin duct mai ɗaukar sauti a cikin ƙafa 5 na farko na babban kwandon. Yi amfani da injunan ECM a cikin tanda ko mai sarrafa iska; yi la'akari da haɓaka zuwa tsarin ƙaramin rarrabuwa da ductwork idan ductwork ya wuce gona da iri.

Ofisoshin Kasuwanci

Ofisoshin budewa suna fama da hayaniya na akwatin VAV, hayaniya mai rarrafe, da murmushin HVAC daga raka'a na rufin. Yi amfani da akwatunan VAV tare da masu rage sauti ko masu shiru. Bayyana masu rarrafe na layi tare da saurin fuska ƙasa da 450 ft / min. Don bene na ofis, yi amfani da plenums na dawo da rufin rufi tare da ɓarkewar sauti don rage magana. Sanya ɗakunan inji daga ɗakunan taro na asali da yankuna masu nutsuwa. Sanya tayal ɗin rufi mai ƙimar sauti (NRC > 0.8) a kan wuraren aiki.

Cibiyoyin Kiwon Lafiya

Asibitoci da asibitoci suna buƙatar ƙananan matakan amo don murmurewar marasa lafiya. Yi amfani da tsarin iska na waje na waje (DOAS) tare da masu shiru na ƙwarewa. Don ɗakunan aiki, yi amfani da masu rarraba HEPA tare da pre-filters da tarkon sauti. Bayyana masu keɓewa na jijiya tare da babban karkatarwa na iska don masu sarrafa iska. Tabbatar cewa ba a sanya tsarin shafi da ƙararrawa kusa da gadon marasa lafiya ba. Bayar da yanki na sauti tsakanin ɗakunan marasa lafiya da wuraren kula da marasa lafiya.

Makarantu da Yankunan Ilimi

A cikin ɗakunan ajiya ana buƙatar NC-25 ko ƙasa don fahimtar magana. Yi amfani da na'urar iska mai iska tare da VFDs da ƙuƙwalwar sauti. Sanya matattara da masu sanyaya wuta daga bangon aji. Don gymnasiums da ɗakunan sauraro, yi amfani da masu sha'awar saurin canzawa tare da masu shiru. Sanya layin duct mai ɗaukar sauti kuma guje wa tsauraran haɗi tsakanin ducts da tsari. Yi la'akari da tsarin hasken sanyi don aiki a cikin dakunan karatu.

Hanyoyi Masu Kyau don Rage Sautin

A cikin yanayi mai wuya kamar ɗakin rikodi, asibitoci, ko ofisoshi masu buɗewa, hanyoyin gargajiya na iya buƙatar ƙarin fasaha.

Gudanar da Sautin Sauti (ANC)

ANC tana amfani da makirufo da masu magana don samar da raƙuman sauti 180 digiri daga fasalin tare da amo mai laifi, yana soke shi ta hanyar lantarki. Wannan fasaha tana da tasiri ga ƙarancin hayaniyar fan, wanda yake da wahalar toshe shi a hankali. Kamfanoni kamar Bose Professional da Silentium suna ba da hanyoyin samar da hanyoyin samar da ANC na kasuwanci. Kudin ya ragu, yana sa ANC ta zama mai amfani ga manyan ayyukan kasuwanci. Shigarwa yana buƙatar sakawa mai kyau na microphones na kuskure da masu magana da magana don kauce wa ra'ayi. Tsarin hybrid wanda ya haɗu da ANC tare da masu shiru na iya cimma raguwar 30 dB a cikin bands na yawan magana da aka yi niyya.

Tsarin dawo da plenum da farfajiyar

Yin amfani da plenum na rufi a matsayin hanyar dawowa na iya haɓaka hayaniya ta sarrafa iska. Shigar da tashoshin dawowa masu layi daban-daban daga plenum yana rage watsa sauti. Ƙara akwatin plenum mai layi tsakanin mai watsawa da gudanawar duct yana rage hayaniya kafin ya shiga cikin ɗakin. Don rufin buɗewa, yi amfani da tayal na rufi mai ɗaukar sauti tare da ƙimar NRC (ƙimar rage hayaniya) mai girma. Yi la'akari da amfani da rufin rufi mai laushi ko girgije a cikin manyan sararin samaniya.

Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin Tsarin

Masu aikin injiniya masu sana'a suna amfani da software kamar HVAC Sound and Vibration Handbook na ASHRAE don tsara haɓakar sauti da gano hanyoyin da suka fi dacewa.

Haɗuwa da Tsarin Aikin Gine-gine

A cikin yanayin da ake amfani da shi, ana iya amfani da tsarin kula da wutar lantarki don sarrafa wutar lantarki. Ana iya amfani da tsarin kula da wutar lantarki don sarrafa wutar lantarki.

Abubuwan da ke Shafan Dokokin Ƙasa da Tsarin Gina

Yawancin hukumomi suna tilasta iyakancewar amo ga tsarin HVAC.

]ASHRAE Standard 2019 Yana ba da shawarar matsakaicin matakin sauti: ofisoshin masu zaman kansu ≤ NC-30, ofisoshin budewa ≤ NC-35, asibitoci ≤ NC-25, da dakunan kwana ≤ NC-20. Waɗannan jagororin ne, ba a aiwatar da su a duniya ba, amma galibi ana yin magana a kai a cikin takamaiman gine-gine.
Lambar Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan K

OSHA ya kafa iyakokin fallasawar da aka yarda (90 dBA na awanni 8). Ma'aikata dole ne su yi amfani da sarrafa injiniya kafin su dogara da kariya ta ji. Rufin sauti na iya rage fallasawar ma'aikata a ƙasa da 85 dBA.

FLT:0 LEED v4 Kyauta maki don ƙirar ƙaramin amo, gami da ƙimar aikin sauti wanda ke buƙatar biyan ƙa'idodin NC. Takaddun buƙata don ƙimar EQ: Mafi ƙarancin aikin sauti.

A cikin gida, akwai wasu wuraren da ake yin hayaniya da kuma yin hayaniya.

Biyayya ba kawai yana inganta jin dadi ba amma kuma yana iya ƙara darajar dukiya. Yi la'akari da lambobin gida kafin fara gyare-gyare; wasu hukumomi suna buƙatar gwajin sauti don sabon gini. Don yanayin masana'antu, kuma la'akari da ƙa'idodin ISO 140 da ASTM E90 don asarar watsa sauti.

Ra'ayoyin Kudin da Amfani

Sa hannun jari a cikin rage amo yana ba da fa'idodi masu ma'ana: mafi girman inganci (bincike ya nuna haɓaka 1015% a cikin ofisoshi na budewa), ingantaccen ingancin bacci a cikin gidaje, da ƙarancin korafin haya a cikin wuraren kasuwanci. Kudin ƙara masu shiru, masu keɓewa na jijiya, da shingen sauti yawanci 15% na jimlar kuɗin aikin HVAC. Canje-canjen na iya zama mafi tsada, amma ayyukan da aka yi niyya kamar maye gurbin motar fan mai hayaniya ko ƙara layin layi galibi suna ba da gamsuwa ga mazauna cikin watanni. Ga gine-gine na yanzu, tsarin tsari wanda ya mai da hankali kan hanyoyin da suka fi damuwa yana ba da mafi kyawun riba. Gyara masu sauƙi kamar taƙaƙan allon kwantarwa ko ƙara ƙirar roba ba su da tsada amma suna iya rage yawan 510 dB.

Ƙarshen

Sautin HVAC ƙalubale ne mai sarrafawa idan aka magance shi ta hanyar tsari. Ta hanyar fahimtar tushen wuyawar inji, turbulence na iska, da aikin kayan aikida kuma amfani da fasaha masu dacewa kamar keɓe sauti, keɓewa na jijiyoyi, ingantaccen ƙirar bututu, da zaɓin kayan aiki mai ƙarancin amo, mazauna za su iya jin daɗin yanayi mai nutsuwa. Kulawa ta yau da kullun tana tabbatar da cewa matakan amo sun kasance ƙasa a tsawon rayuwar tsarin. Don sararin samaniya mai ƙima, hanyoyin ci gaba kamar sarrafa amo mai aiki ko ƙirar sauti suna ba da ƙarin ƙwarewa. A ƙarshe, aiwatar da waɗannan hanyoyin ba wai kawai ya cika bukatun lambar ba amma kuma yana haɓaka jin daɗi da ƙimar aiki ba tare da yin watsi da ƙimar makamashi ko jin daɗin thermal ba. Tsarin HVAC mai ƙira yana da alamar ƙirar ƙirar ƙirar gini mai kyau.

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