Nkiki ekyovalveokusheenya? Nitubaasa kukimaraho tuta?
Ekitongore ky'amaizi ekya Tianjin Tanggu
Tianjin,OBUCHAINA
Okwa 19,Okwezi kwa mukaaga,2023
Nk’oku eiraka ririkubaasa kugira eki ryakora kubi aha mubiri gw’omuntu, emirundi emwe neebaasa kuzaana akabi aha bikwato by’amakorero kyaba kitoorainwe gye ekikwato ky’okutegyeka, hariho akabi k’okusheeshasheesha, ekirikuza kureetera oruyombo rwingyi n’okutengeeta, ekirikureetaho okushiisha kw’ahonaaho munonga aha mipiira y’omunda n’ey’ahansi y’omugyera .valve.
Okwongyera ahari ekyo, eiraka ry’amaani nirikira kureetera okutengeeta okurikubaasa kushiisha emipiira, ebikwato n’ebindi bikoreso .Valven‘okuhinguraho kw‘obwire, okusheenyagura kw‘ebicweka, okusheenyagura kwa valve okurikureetwaho enkora y‘emipiira nikubaasa kusheenyagurika munonga. Okusiisikara oku nikukira kureetwa amaani g‘okuteera akaari k‘okutengeeta, omuringo gw‘okusheenya ogw‘okurahuka n‘okusheenyagura okurikworekwa omu rurengo rw‘eiraka ry‘ahaiguru orw‘okutengeeta kw‘amaani maingi okurikureetwaho okukora n‘okugwa kw‘ebicupuri by‘omuriro haihi n‘ahansi y‘okukyendeera ..
N’obu eki kiraabe nikikira kubaho omu mupiira .za valvuna rotary valves omu mubiri, buzima nikibaasa kubaho omu bwire bukye, okugaruka omu buteeka kw‘ahaiguru okurikushushana n‘ekicweka ky‘omubiri kya wafer ekya V-ball .valve, namunomunoza valvu z'ekihuguhuguaha rubaju rw’ahansi rw’omugyera gwa valvu obu .valven‘okuteganisibwa omu mwanya gumwe ogurikubaasa kubaho eky‘okusheeshasheesha, ekirikubaasa kusheeshasheesha omu kusheeshasheesha kw‘emipiira ya valvu n‘okushemeza, valvu terikuhikaana n‘ekicweka eki eky‘omurongooti.
Hatariho kugyendera aha kusheeshasheesha nikubaho omunda ya valvu nari ahansi y‘omugyera gwa valvu, eby‘okukoresa omu mwanya gw‘okusheeshasheesha nibiija kutunga okusiisikara kwingi ahabw‘ebishushani by‘omubiri ebikye munonga, ebishumuruzo n‘ebicweka bikye by‘ebicweka bya cantilever, okutengeeta kw‘amaani nikubaasa kureetaho okutengeeta. Enshonga z‘okuremwa ezirikukira kubaho nizishangwa omu bikwato nk‘ebipimo bya pressure, ebirikujanjaaza, emikono ya thermocouple, ebipimo by‘okusheeshasheesha, enkora z‘okutooranamu Actuators, positioners na limit switches ezirimu springs nibiija kubonabona ahabw‘okujwara juba, kandi ebikwato by‘okuteereraho, ebikwato by‘okuhamya n‘ebikwato by‘okuteerana nibiija kusheesheka n‘okuremwa.
Okusheeshasheesha kw‘okusheeshasheesha, okurikubaho ahagati y‘ebintu ebijwaire ebirikukwatwaho okutengeeta, nikukira kubaho haihi n‘ebikwato by‘okusheeshasheesha. Eki nikireetaho okisidi ezigumire nk’ebirikusheenya kutunguura okujwara ahagati y’ebintu ebijwaire. Ebikwato ebirikukwatwaho harimu ebikwato by‘okwetaanisa n‘okukyebera, okwongyeraho ebikwato by‘okutegyeka,empampa, ebipande ebirikwehindura, ebikwato by‘okukyebera n‘ebindi byona ebirikwehindura nari ebirikusheesheka.
Okutengeeta kw’amaani maingi nakwo nikubaasa kusharaho n’okusheenya ebicweka bya valvu z’ekyoma n’ebisiika by’emipiira. Obucweka bw‘ekyoma obujanjaire nari ebintu by‘emibazi ebirikushiisha nibibaasa kushiisha eby‘okukoresa ebiri omu nshaho, ekirikubaasa kugira eki kyakora kihango aha nkora y‘okutaho emipiira y‘obuyonjo n‘ebintu by‘okutaho emipiira eby‘obuyonjo bw‘ahaiguru. Eki nakyo tikirikwikirizibwa.
Okutebereza okuremwa kwa cavitation kwa plug valves nikukirayo kuguma kandi tikurikubarwa kwonka okugwa kwa choke pressure. Okumanya nikugira ngu nikibaasika ngu omuhimbo oguri omu mugyera mukuru gukyendeere kuhika aha muhimbo gw’omuyaga gw’amaizi gutakahindukire omuyaga gw’omu mwanya ogwo n’okugwa kw’ekibunu ky’omuyaga. Abamwe abarikukora valve nibateebereza okuremwa kw’okuzibira okusheeshasheesha okutakahikire barikushoboorora okugwa kw’okubanza kw’okushiisha kwa pressure. Omuringo gw’omukozi wa valve gw’okutandika n’okuteebereza okusiisikara kw’okusheeshasheesha nigurugiirira aha kureeba ngu ebicupuri by’omuriro nibigwa, bikareetaho okusheeshasheesha n’okuteera orwaari. Kimanyirwe ngu okusiisikara kw‘amaani kw‘okusheeshasheesha nikwija kwetantarwa omubaro gw‘eiraka ogubariirwe gwaba guri ahansi y‘empimbi ezihandiikirwe ahaifo.
Obuhango bwa valve kuhika ahari inci 3 – 80 dB
Obuhango bwa valve bwa inci 4-6 – 85 dB
Obuhango bwa valvu inci 8-14 – 90 dB
Obuhango bwa valve bwa inci 16 n’okukiraho – 95 dB .
Emiringo y‘okumaraho okusiisikara kw‘okusheeshasheesha
Enkora ya valve ey'omutaano ey'okumaraho okusheenya neekozesa okutambura kw'okugabanisa n'okugwa kwa puresha:
“Okuhindura omu nkora ya Valve” n’okugabanisa omugyera muhango omu bicweka bikye bingi, kandi omuhanda gw’okusheesheka ogwa valve gutebeekanisiibwe kugira ngu omugyera gugyende kurabira omu bifunjo bikye ebirikushushana. Ahabw’okugira ngu ekicweka ky’obuhango bw’ekibunu ky’okusheeshasheesha nikibarwa kurabira omu kiina eki omugyera gurikurabamu. Okwigura okukye nikubaasisa obucupa bukye, ekirikureetaho okuteera orwari kukye n’okushiisha kukye kyahika aha kushiisha.
“Okugwa kwa pressure okuri omu nkora” nikimanyisa ngu valve ekozirwe kugira enshonga ibiri nari ezirikukiraho z‘okuhindura omu nkora, n‘ahabw‘ekyo omu mwanya gw‘okugwa kwa pressure yoona omu ntambwe emwe, nikitwara amatembezo makye maingi. Okukyendeera kw‘okugwa kwa pressure y‘omuntu ahabwe nikubaasa kuzibira pressure omu kukyendeera kuruga omu kugwa kwa pressure y‘omuyaga gw‘amaizi, n‘ahabw‘ekyo nikimaraho ekikorwa ky‘okusheeshasheesha omu valve.
Okuteerana kw’okuhindura n’okutaho okugwa kw’amaani omu nkora emwe nikibaasisa okutunguuka omu kuzibira okusheeshasheesha ahabw’. Omu bwire bw‘okuhindura valvu, okutaho valvu y‘okutegyeka n‘okugyemeserezibwa aha ntandikwa ya valvu biri ahaiguru (nk‘eky‘okureeberaho aha rubaju rw‘ahaiguru munonga, nari aha rurengo rwa hansi), obumwe nikimaraho oburemeezi bw‘okusheeshasheesha.
Okwongyera ahari ekyo, okutaho ekikwato ky‘okutegyeka omu mwanya gw‘obutagatsi bw‘amaizi, n‘ahabw‘ekyo okuteera kw‘omuyaga okukye (nk‘obutagatsi bukye aha rubaju rw‘okuhindura obutagatsi) nikibaasa kuhwera kwihaho oburemeezi bw‘okusheeshasheesha.
Omu bugufu kyorekire ngu ekikorwa ky‘okusheenya (cavitation phenomenon) kya valvu buzima tikirikukwata aha kukora kw‘okusheenya n‘okushiisha kwa valvu kwonka. Emipiira y’ahansi n’ebikwato nabyo biri omu kabi. Okuteebereza okusheeshasheesha n‘okutwara amatembezo g‘okukimaraho n‘omuringo gwonka gw‘okwetantara ekizibu ky‘okukoresa esente z‘omuhendo z‘okukoresa valvu.
Obwire bw'okuhandiika: Okwamukaaga-25-2023
