Nhọrọ nke dayameta nke ọwa ikuku ikuku ikuku (2)

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