Round ducts ua los ntawm galvanized steel: GOST thov

Yuav kom niaj hnub cua tshuab yog muaj zog uas yuav tsum tau. Qhov zoo tshaj ntawm nws cov installation nyob rau hauv lub nplij siab thiab kev nyab xeeb ntawm cov neeg hauv lub tsev. Yog li ntawd, ua ntej lub arrangement ntawm lub cua engineers ua ib tug leej xam ntawm nws tsis.

Round cua ducts ntawm galvanized steel yog feem ntau siv rau xws li lub hom phiaj nyob rau hauv industrial thiab tsev neeg tej khoom. Qhov no yog vim lawv ua yam ntxwv. Qhov ntau txaus nyiam cov ducts yuav tsum raug xam tias yog nyob rau hauv ntau yam.

Xaiv cov ciav

Ciav - ib tug keeb ntawm cov cua system nyob rau hauv daim ntawv ntawm ib lub thawv. Nws koom ncaj qha nyob rau hauv cov circulating cua masses thiab lawv pauv nrog rau lwm cov ib puag ncig. Qhov no txoj kev lawm los yog forcedly (los ntawm txoj kev compressors) tej zaum yuav tshwm sim.

Lub efficiency nyob ntawm lub hom cua hlab, lawv cov yam ntxwv. Tsis txaus txoj kab uas hla los yog tej ntaub ntawv uas yuav txo tau cov kev sib txuas lus ntawv Tuition Waiver, lub rov tshwm sim ntawm cov cua suab nrov.

Round cua ducts ua los ntawm galvanized steel yog siv ntau feem ntau dua lwm tus. Qhov no yog vim lawv tus yam ntxwv thiab lub zog. Tseem ceeb tsis xws cov khoom uas nruj-sectional txoj kab uas hla, zoo lawm, hom ntawm cov khoom, thiab kuj nta sib txuas ntawm cov yam ntxwv hais.

Yuav kom qhib siab kav tau raws li niaj hnub yuav tsum tau, lawv ua raws li GOST 19904-90.

Cov yam ntxwv ntawm cov khoom

Cua ducts ntawm yeej cross-section ua los ntawm galvanized steel, uas yuav tsum tau kom lawv GOST tshuab los yog phau ntawv lawm, tam sim no nyob rau hauv siab thov. Lawv ua lub tsev los ntawm cov dawb paug ntawv.

Los ntawm kev siv ntawm xws li ib tug ntau yam ntawm galvanized steel peev xwm ua tau ib tug uas tsis muaj aerodynamic kuj. Installation ntawm cov khoom yog heev yooj yim. Flange rau round cua ciav ua los ntawm galvanized steel yog siv tsawg heev tshaj lub txiv mis.

Los ntawm cov zoo-leaved preform Yuav ducts puag ncig thiab lub zoo ntawm tej seem. Lub sij hawm ntawm lub lag luam ntawm cov khoom los ntawm cov khoom no mus txog rau 10 xyoo. Galvanizing yog tsis raug mus rau corrosion. Nws yuav muab tau yooj yim thauj thiab ntsia rau ntawm qhov chaw.

hom

yeej ducts ua los ntawm galvanized steel yog ob peb ntau yam, nyob ntawm seb lub faib ntawm tej yam tshwm sim.

Los ntawm hom leeg raj tej zaum yuav welded los yog spiralnonavivnye. Greater kev ntseeg txawv ua ntej. Lawv zoo ua ntxiv rigidity thiab kev cia siab ntawm lub duct.

Class ceev thiab kev ncaj ncees ntawm cov ntaub ntawv uas tej zaum yuav n (khoom) thiab N (li qub). Nyob rau hauv thawj cov ntaub ntawv, cov khoom yuav mas lub siab ntawm 1.4 kPa. Tej zaum lawv yuav ntsia tau rau hauv qhov chaw zov, uas yog yus muaj los ntawm siab tua hluav taws los yog tawg uas yuav muaj. Nyob rau hauv cov pa vaj tse siv hauv chav kawm ntawv H ducts

Qhuav kav spiralnonavivnyh

Spiralnonavivnye ntawm ducts ua los ntawm galvanized steel strips 137 mm dav. Nws Qwj thiab txuas cov npoo ntawm cov hom ntawm txhav tas khawm ris. Cov leeg ntawm cov khoom yog ib txwm nyob sab nraum.

Cov kab uas hla ntawm lub tiav lawm ciav nyob ntawm galvanized steel billet thickness. Rau cov khoom uas seem 150-350 hli yuav tsum tau cov ntaub ntawv uas 0,55 hli. Yog hais tias cov yeeb nkab inch yog yuav tsum tau 360-800 hli, lub thickness ntawm steel rau nws siv thiab muaj yuav 0.7 hli. Lub widest ntoo khaub lig-seem ntawm lub cua kev sib txuas lus yog 850-1250 hli. Galvanized ntawv li yuav tsum tau muaj ib tug tuab ntawm 1 hli.

Hoobkas ntau lawm kom tus me nyuam nyob rau hauv cov yeeb nkab ntaub ntawv ua lag luam ntawm 3-6 m. Yog hais tias tus neeg muas zaub yog tsim nyog rau mount lub system siv lwm ciav ntev, cov khoom no yog ua los rau txim.

Properties spiralnonavivnyh kav

Chaw hais khoom vim lawv cov yam ntxwv. Nyob rau hauv cov ntaub ntawv ntawm manufacturing ib tug kauv leeg ducts ntawm yeej tus ntoo khaub lig seem ntawm galvanized steel muaj siab muaj zog. Ribbing rigidity, thiab nyias daim ntawv ntawm hlau cov khoom muaj yooj yim.

Degree ntawm Kev pab tiv thaiv nyob rau hauv cov kav dej uas muaj tuaj hom P. pob qij txha yog ntxiv ua nrog silicone sealant.

Tsaug rau cov qualities ntawm cov installation ntawm tej khoom tsis yog yooj yim thiab yuav tsis tau ib tug loj tus naj npawb ntawm cov tebchaw. Rau cov kev kho ntawm lub cua system nws yog tej zaum yuav siv cov kav dej mus txog 12 m ntev.

Cov huab cua uas kis tau los ntawm tej kev sib txuas lus, ntxiv cov. Qhov no yuav qhia rau nws cov acceleration thiab thiaj li nrov ntau ntau ntau.

Welded cov kav thiab lawv cov khoom

Raug longitudinal cua tshuab yuav Symptoms npoo ntawm daim ntawv steel los ntawm txoj kev ib tug pin los yog flange.

Rau txheem loj tej daim ntawv cov khoom tau. Yog hais tias ib tug yuav tsum tau tshwm sim los tsim galvanized steel ducts nrog lwm yam tsis, kev txiav ua manually siv tshwj xeeb cov khoom.

Tom qab txiav cov workpiece nce mus txog lub yob. Lawv saws cov khoom rau hauv ib lub raj ntawm yam hauv lub cheeb. Ntxiv Quav dawb paug nce mus txog lub zeb. Lub longitudinal ntug ntawm lub duct kho. Folds fim down raws tag nrho ntev.

Los ntawm cov qauv no yog tau ib tug luv luv yeeb nkab 1.5-2.5 m. Cov rooj sib txoos ntawm cov khoom no siv ntau yam ntawm zoo li tus khoom.

Qhov zoo ntawm longitudinal welded kav

Yog hais tias peb los sib piv cov welded yeej ducts ua los ntawm galvanized steel nrog lub lawv hom, cov kev xaiv thawj yog cheaper. Lawv yog cov ntau "nyob ntsiag to", muaj zoo aerodynamics. Lawv yog cov yooj yim rau nruab tshaj lub lub duct hom.

Tab sis yog hais tias peb los sib piv nrog spiralnonavivnymi kav, welded ntau ntau yam teem nyuab me ntsis. Lawv yuav tsum tau ua kom ntau sib txuas, t. Yuav kom. Qhov ntev ntawm cov khoom ntawm no hom no kuj me me.

Yog li ntawd, cov lwm ntawm lub cua nyob rau hauv ib tug ntiav tsev siv welded kav. Lawv yog cov pheej yig dua. Tiam sis ntau tshaj spiralnonavivnye ducts yog siv nyob rau hauv tej kev kawm muaj. Cov tsawg kev sib txuas yuav tsum tau ua, lub zoo dua cov tsuaj system.

fittings

Mus ua ib tug tig, ceg ntseeg, los yog kev hloov, ntawm galvanized steel rau tsim ncig ciav mouldings. Lawv yuav ua tau ntawm txawv diameters thiab raug xaiv nyob rau hauv raws li tus ntoo khaub lig seem ntawm cov yeeb nkab rau cua.

Hais npaj rau txoj kev loj hlob thiab tag nrho system installation xws li cov khoom: tees, khoov rau ob sab, umbrellas, log tsheb, zaus, khoov rau ob sab, thiab tus ntoo khaub lig khi. Nws tshwm sim thaum koj nruab ib lub cua complex tsim yog siv nyob rau hauv tag nrho cov nqi ntawm ntau tshaj txoj kev zoo nkauj khoom dua cov kav dej lawv tus kheej.

Yog li ntawd, qhov zoo ntawm lawv cov khoom yog tsis yog raws li ib qho tseem ceeb raws li cov huab cua ducts. Tus me pob qij txha yuav muaj lub system, lub zoo dua. Nyob rau hauv cov pob qij txha lub sij hawm ntxiv hmoov av thiab khib nyiab. Yog li ntawd, qhov ntau du nto hauv, qhov ntau check yuav lub neej ntawm lub system.

Thaum familiarized nrog cov khoom xws li round ducts ua los ntawm galvanized steel, nws muaj peev xwm yuav xaus lus tias nws yog heev nrov system. Nws nqi thiab kev kawm ntawv ua rau lawv ib tug thov rau installation ntawm ntau yam cua tshuab. Rau txhua hom ntawm chav tsev koj yuav tsum tau xaiv ib tug ntau yam ntawm cov kav dej.