Mavharuvhu ekudzora kuyerera kwemavharuvhu (Cv, Kv naC) emayuniti akasiyana masisitimu mavharuvhu ekudzora ari pasi pekumanikidzwa kwakasiyana-siyana, huwandu hwemvura inotenderera muyuniti yenguva kana vharuvhu yekudzora yakavhurika zvizere, Cv, Kv naC pane hukama pakati peCv = 1.156Kv, Cv = 1.167C. Chinyorwa chino chinogovera tsananguro, yuniti, shanduko uye maitiro ekubvisa Cv, Kv naC.
1, Tsananguro yehuwandu hwekuyerera kwemvura
Kugona kuyerera kwevharuvhu yekudzora imvura chaiyo patembiricha yakatarwa, kana vharuvhu yapera nekuda kwekumanikidzwa kwakasiyana kweyuniti, huwandu hwehuwandu hwemvura inoyerera nevharuvhu yekudzora muyuniti yenguva, uchishandisa sisitimu yakasiyana yemayuniti kana paine nzira dzakasiyana dzekutaura.
Tsanangudzo yehuwandu hwekuyerera C
Zvichienderana nekurohwa, tembiricha ye5-40 ℃ yemvura, musiyano wekumanikidzwa kwevharuvhu pakati pemagumo maviri e1kgf/cm2, huwandu hwekuyerera kuburikidza nevharuvhu paawa (inoratidzwa mu m3). C ndiyo flow coefficient ye common metric, nyika yedu kare yagara ichishandiswa kwenguva yakareba, yaimbozivikanwa se circulation capacity yeC. flow coefficient C ndiyo flow coefficient ye common metric.
② Tsanangudzo yehuwandu hwekuyerera kweKv
Zvichienderana nekurohwa, musiyano wekumanikidzwa pakati pemagumo maviri evharuvhu i102kPa, tembiricha ye5-40 ℃ mvura, huwandu hwemvura inoyerera nevharuvhu yekudzora paawa (inoratidzwa mu m3). kv ndiyo system yepasi rose ye mayuniti ekuyerera kwemvura.
③ Tsanangudzo yehuwandu hwekuyerera kwemvura Cv
Huwandu hwemvura patembiricha ye60°F inoyerera nepavharuvhu inotonga paminiti (inoratidzwa mumagaloni eUS US gal) pakurohwa kwakapihwa nedhigirii re1lb/in2 pamagumo ese evharuvhu. Cv ndiyo Imperial flow coefficient.
2. Kuwanikwa kwemafomula ehurongwa hwakasiyana hwemayuniti
①Kukwanisa kutenderera kwemhepo C fomura nemayuniti
当γ/γ0=1，Q=1m3/h，△P=1kgf/cm2时，如C定义為1，则N=1。则流通能力C的公式及单位如下:
Kana γ/γ0=1, Q=1m3/h, △P=1kgf/cm2, kana C inotsanangurwa se1, saka N=1. Fomura uye unit ye circulation capacity C ndeizvi:
Mufomura C ndiyo kugona kutenderera kweropa; Q yuniti m3/h; γ/γ0 ndiyo simba guru remagetsi; △P yuniti kgf/cm2.
② Fomura yekuverenga Cv inoyerera uye yuniti
Kana ρ/ρ0=1, Q=1USgal/min, ∆P=1lb/in2, uye kana Cv=1 yatsanangurwa, saka N=1. Fomura nemayuniti e flow coefficient Cv ndeaya anotevera:
apo Cv ndiyo flow coefficient; Q iri muUSgal/min; ρ/ρ0 ndiyo specific density; uye ∆P iri mulb/in2.
③ Fomura yekuverenga yeKv coefficient yekuyerera uye yuniti
Kana ρ/ρ0=1, Q=1m3/h, ΔP=100kPa, kana Kv=1, ipapo N=0.1. Fomura neyuniti ye flow coefficient Kv zvinotevera:
apo Kv ndiyo flow coefficient; Q iri mu m3/h; ρ/ρ0 ndiyo specific density; ΔP iri mu kPa.
3. Kushandurwa kwesimba rekutenderera C, chiyero chekuyerera Kv, chiyero chekuyerera Cv
① kuyerera kwehuwandu hweCv uye kugona kutenderera kweropa C hukama
uko kunozivikanwa kuti Q iri muUSgal/min; ρ/ρ0 ndiyo density chaiyo; uye ∆P iri mulb/in2.
Kana C=1, Q=1m3/h, γ/γ0=1 (kureva, ρ/ρ0=1), uye ∆P=1kgf/cm2, kutsiva fomura yeCv nemamiriro eC=1 ndiko:
Kubva pakuverenga, tinoziva kuti C=1 uye Cv=1.167 zvakaenzana (kureva, Cv=1.167C).
② Kushandurwa kweCv neKv
Kana Kv = 1, Q = 1m3 / h, ρ / ρ0 = 1, △ P = 100kPa inotsiva fomura yeCv yekushandura mayuniti:
Kureva kuti, Kv = 1 yakaenzana neCv = 1.156 (kureva, Cv = 1.156Kv).
Nekuda kwemamwe mashoko uye mienzaniso yehukuru hwevharuvhu yekudzora C, huwandu hweKv uye hurongwa hwekufamba kwemvura Cv haina nzira yekubvisa, kushandiswa kwezviri nyore kugadzira kuvhiringidzika. Changhui Instrumentation C, Kv, Cv kubva patsanangudzo, kushandiswa kweyuniti uye hukama pakati pezvinhu zvitatu zvichajekeswa, kubatsira vagadziri veinjiniya mukuita kwekudzora kusarudzwa kwevharuvhu uye kuverenga kutaura kwakasiyana kwehuwandu hwekufamba kwemvura (C, Kv, Cv) yekushandura nekuenzanisa, kuita kuti kusarudzwa kwevharuvhu yekudzora kuve nyore kupfuura kusarudzwa.
MaCV evharuvhu dzemapuruguru eTianjin Zhongfa Valve ndeaya anotevera, kana zvichidikanwa, ndapota tarisai.