1. Mkpebi nke dayameta nke akụ na ụba m ventilashion duct
1.1 Ọnụ ahịa ọwara ikuku ikuku nke m
Ka dayameta nke oghere ventilashị nke m na-abawanye, ihe ndị a chọrọ na-abawanye, ya mere, ọnụ ahịa ịzụta nke oghere ikuku na-emepụta ihe na-abawanye.Dabere na nyocha ọnụ ọgụgụ nke ọnụ ahịa nke onye na-emepụta duct ventilashion nyere, ọnụahịa nke oghere ikuku ventilashị na dayameta nke oghere ikuku ventilashị bụ nke kwụ ọtọ dị ka ndị a:
C1 = (a + bd) L(1)
Ebee,C1- ọnụ ahịa azụta nke ikuku ventilashị nke m, CNY; a- ụbara ọnụ ahịa nke ikuku ventilashị nke m kwa otu ogologo, CNY / m;b- ọnụ ọgụgụ isi ọnụ ahịa nke ogologo nkeji na otu dayameta nke duct ventilashion nke m;d- dayameta nke oghere ikuku ventilashion, m;L- Ogologo eriri ikuku ventilashị nke azụrụ, m.
1.2 Ngwuputa ikuku ikuku ventilashion ọnụ ahịa
1.2.1 Nyocha nke mpaghara ikuku ventilashion
Mgbochi ikuku nke ikuku ventilashion nke m na-agụnye mgbagha ikukuRfvnke eriri ikuku ventilashion na ikuku ikuku nke mpagharaRev, ebe ikuku na-eguzogideRevna-agụnye nkwonkwo ikuku mgbochiRjo, nguzogide ikuku n'ikpereRbena Ngwuputa ventilashion duct na-egbochi ikukuRou(ụdị pịa-in) ma ọ bụ mgbochi ikukuRin(ụdị mmịpụta).
Ngụkọta ikuku na-eguzogide duct-in mine ventilation duct bụ:
(2)
Ngụkọta ikuku na-eguzogide duct ventilashion nke m bụ:
(3)
Ebe:
Ebe:
L- ogologo nke ikuku ventilashion nke m, m.
d- dayameta nke ikuku ventilashion nke m, m.
s- mpaghara obe nke ikuku ventilashị nke m, m2.
α– Ọnụọgụ nke esemokwu esemokwu nke duct ventilashion nke m, N·s2/m4.The roughness nke n'ime mgbidi nke metal ventilashion duct bụ Olee ihe enyemaka otu, otú ahụαuru na-emetụta naanị dayameta.Ọnụ ọgụgụ na-eguzogide esemokwu nke ma ikuku ventilashị na-agbanwe agbanwe na ikuku ventilashị nwere mgbanaka siri ike metụtara nrụgide ikuku.
ξjo- ọnụọgụ nguzogide mpaghara nke nkwonkwo ikuku ventilashị nke m, enweghị oke.Mgbe enwerennkwonkwo n'ogologo dum nke duct ventilashion nke m, a na-agbakọ ọnụ ọgụgụ nkwụghachi azụ nke mpaghara nke nkwonkwo dịka ọ dị.mbajo.
n- ọnụ ọgụgụ nke nkwonkwo nke duct ventilashion nke m.
ξbs- ọnụọgụ nguzogide mpaghara na ntụgharị nke ọwa ikuku ikuku.
ξou- ọnụọgụ nguzogide mpaghara na mpụta nke ikuku ventilashị nke m, wereξou= 1.
ξin- ọnụọgụ nguzogide mpaghara na ntinye nke ọwa ikuku ventilashị;ξin= 0.1 mgbe mbata na-kpam kpam gburugburu, naξin= 0,5 - 0,6 mgbe ntinye na-adịghị agbakọta n'akụkụ aka nri.
ρ- njupụta ikuku.
Na ikuku ventilashion nke mpaghara, enwere ike ime atụmatụ nguzogide ikuku nke ikuku ventilashion dabere na nkwụsi ike ikuku.A na-ekwenyekarị na nchikota nke ikuku ikuku nke mpaghara nke nkwonkwo nke ikuku ventilashion nke m, ikuku ikuku nke mpaghara nke ntụgharị, na nkwụsị nke ikuku (ụdị pịa-in) ma ọ bụ nkwụsị ikuku ikuku (ụdị mmịpụta). nke duct ventilashion nke ogbunigwe dị ihe dịka 20% nke mkpokọta ikuku na-egbochi ikuku ikuku ikuku.Ngụkọta ikuku nke ikuku ventilation nke m bụ:
(4)
Dị ka akwụkwọ akụkọ, uru nke frictional eguzogide ọnụọgụ α nke fan duct nwere ike na-ahuta dị ka a na-adịgide adịgide.NkeαEnwere ike ịhọrọ uru nke eriri ventilashị ígwè dị ka tebụl 1;Nkeαuru nke JZK usoro FRP ventilashion duct nwere ike họrọ dị ka Isiokwu 2;Ọnụ ọgụgụ na-eguzogide esemokwu nke ikuku ventilashị na-agbanwe agbanwe na eriri ikuku na-agbanwe agbanwe nke nwere ọkpụkpụ siri ike na-ejikọta ya na ikuku ikuku na mgbidi, ọnụọgụ nguzogide esemokwu.αEnwere ike ịhọrọ uru nke duct ventilashion na-agbanwe dị ka Tebụl 3 si dị.
Tebụl 1 ọnụọgụ nkwụsi ike nke igwe ikuku ventilashị
| Dayameta mkpọpu (mm) | 200 | 300 | 400 | 500 | 600 | 800 |
| α× 104/( N·s2· m-4 ) | 49 | 44.1 | 39.2 | 34.3 | 29.4 | 24.5 |
Tebụl 2 ọnụọgụ nkwụsi ike nke esemokwu nke JZK usoro FRP centilation duct
| Ụdị ducting | JZK-800-42 | JZK-800-50 | JZK-700-36 |
| α× 104/( N·s2· m-4) | 19.6-21.6 | 19.6-21.6 | 19.6-21.6 |
Tebụl 3 Ọnụ ọgụgụ nke nguzogide esemokwu nke eriri ikuku na-agbanwe agbanwe
| Dayameta mkpọpu (mm) | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 |
| α× 104/N·s2· m-4 | 53 | 49 | 45 | 41 | 38 | 32 | 30 | 29 |
Ka ga-aga n'ihu…
Oge nzipu: Jul-07-2022
