Omuhendo gwa CV nigumanyisa ki? Noobaasa kutoorana ota valve y‘okutegyeka kurugiirira aha muheendo gwa Cv?

Invalveinginiya, omuhendo gwa Cv (Flow Coefficient) gw’okutegyekavalvenikimanyisa omubaro gw‘okusheesheka kw‘omubaro nari omubaro gw‘okusheesheka kw‘oburemeezi bw‘omugati gw‘omupiira kurabira omu valve buri yuniiti y‘obwire n‘ahansi y‘embeera z‘okugyezibwa obu omupiira gurikuguma aha nkora etarikuhinduka. Nikwo kugira ngu, obushoboorozi bw’okusheesheka kw’omubiri.

Omuhendo gw‘okusheesheka gwaba guri ahaiguru, okufeerwa kw‘amaani nikukyendeera nk‘oku amaizi garikusheesheka kurabira omu .valve.

Omuhendo gwa Cv gwa valve guteekwa kumanyirwa aha kugyezibwa n’okubara.

CVekyobuguzini ekipimo ky‘eby‘obuhangwa kikuru ekirikupima obushoboorozi bw‘okusheesheka kw‘ekikwato ky‘okutegyeka ahansi y‘embeera ezimwe. Omuhendo gwa CV tigurikworeka okukora kwa valve ahabwayo kwonka, kureka nigukwatagana butunu n‘entebeekanisa n‘okukora gye kw‘enkora y‘okutegyeka amaizi.

Enshoboorora neekira kurugiirira aha mbeera z‘omutindo ezi: e .valven‘okukinguka omu bwijwire, entaaniso ya pressure eri 1 lb/in2 (nari 7KPa) aha nshonda zoona, kandi amaizi ni 60°F (15.6°C) g‘amaizi marungi, omu bwire obwo obuhango bw‘amaizi (omu galoni za US) agarikuraba omu valve buri dakiika n‘omuhendo gwa Cv gwa valve. Nikimanyisa ngu omubaro gw’okusheesheka omu China nigukira kushoboororwa omu nkora ya metric, n’akamanyiso Kv, kandi akakwate n’omuhendo gwa Cv ni Cv=1.156Kv.

Oku orikubaasa kumanya caliber ya valve orikukoresa omuhendo gwa Cv .

1. Barira omuhendo gwa CV ogu orikwenda:

Okurugirira aha byetengo by‘omutaano eby‘enkora y‘okutegyeka amaizi, nk‘okusheesheka, okuteera kw‘entaaniso, embeera z‘ahagati n‘ezindi, omuhendo gwa Cv ogurikwetengyesa nigubarwa orikukoresa enkora nari puroguraamu erikuhikaana. Eidaara eri niritwara omu nkora enshonga nk‘emitwarize y‘omubiri y‘amaizi (nk‘eky‘okureeberaho, okutambura, oburemeezi), embeera z‘okukora (nk‘eky‘okureeberaho, obutagatsi, oburemeezi), n‘omwanya gw‘okutaho valve.

2. Toorana diamita ya valvu ehikire:

Okurugirira aha muheendo gwa Cv ogurikwetengyesa ogubariirwe n‘omuhendo gwa Cv oguteirweho ogwa valvu, diamita ya valvu ehikire neetooranwa. Omuhendo gwa Cv oguteirweho ogwa valvu etoorainwe gushemerire kuba gurikwingana nari gurikukiraho kakye aha muheendo gwa Cv ogurikwetengyesa kureeba ngu valvu neebaasa kuhikiiriza ekyetengo ky‘okusheeshasheesha buzima. Omu bwire nibwo bumwe, nikyetengyesa n‘okuteekateeka aha bintu ebindi nk‘ebintu, omubumbi, okukora kw‘okukinga, n‘omuringo gw‘okukora kwa valvu kureeba ngu okukora kwa valvu kwona nikuhikiiriza ebyetaago by‘enkora.

3. Okuhamya n’okuhindura:

Bwanyima y’okubanza kutoorana aba .valvecaliber, okuhamya n’okuhindura ebirikwetengyesa biine kukorwa. Eki nikitwariramu okuhamya ngu okukora kw‘okusheeshasheesha kwa valve nikuhikiiriza ebyetaago by‘enkora kurabira omu kubara kw‘okugyeragyeranisa nari okugyezesa kw‘ensi eyaabuzima. Ku haraabe hariho okutaana kwingi, nikibaasa kwetengyesa kugaruka kubara omuhendo gwa Cv nari kuhindura omu nkora ya valvu.

Omubugufu

Omu nkora y‘okuha amaizi g‘ekyombeko, valvu y‘okutegyeka yaaba etarikuhikiiriza omuhendo gwa CV ogurikwetengyesa, pampu y‘amaizi neebaasa kutandika kandi eyemerere emirundi mingi nari kugyendera aha mugugu muhango obwire bwona. Eki tikushiisha amaani g’amashanyarazi gonka, kureka ahabw’okuhindukahinduka kwa pressure buri kaanya, nikibaasa kureetera okuteerana kw’emipiira kusheeshasheesha, okusheeshasheesha, kandi nikibaasa n’okushiisha pampu ahabw’okumara obwire buraingwa erikuremeera munonga.

Omu bugufu, omuhendo gwa Cv gw‘ekipimo ky‘okutegyeka n‘eky‘okureeberaho kikuru ky‘okupima obushoboorozi bwakyo bw‘okusheeshasheesha. Omu kubara gye omuhendo gwa Cv n‘okumanyisa omubaro gwa valve oguhikire kurugiirira aharigwo, okuhama n‘oburungi bw‘enkora y‘okutegyeka amaizi nibibaasa kuhamibwa. Nahabwekyo, omu nkora y‘okutoorana valvu, okukora enkora n‘okutunguura okukora, omutima gwona gushemerire kuheebwa aha kubara n‘okukozesa omuhendo gwa Cv.

Ekitongore ky'amaizi ekya Tianjin Tangguokukira munonga kureetaho okugumisiriza okushutamavalvu y'ekihuguhugu, valvu y'omuryango, Y-ekigyezo, valvu y'okugyeragyeranisa, valvu y'okukyebera, valvu y'okugyeragyeranisa, ekirikuzibira okugaruka enyima n'ebindi.