Jonga umfanekiso oMkhulu
I-valve yenye yezixhobo eziphambili kwinkqubo yokulawula ulwelo.Okwangoku, izicelo eziphambili zevalve zibandakanya i-petroleum kunye negesi, amandla, ubunjineli beekhemikhali, ukunikezelwa kwamanzi kunye nokucocwa kwamanzi amdaka, ukwenza iphepha kunye ne-metallurgy.Phakathi koko, i-oyile kunye negesi, amandla kunye neshishini lemichiza zezona zinto zibalulekileyo ze-valve.Ngokwengqikelelo evela kuMcIlvaine, umthengisi wentengiso, imfuno yevalvu yeshishini iya kufikelela kwi-100 yeebhiliyoni zeedola. Imfuno yamandla kumazwe asaphuhlayo yeyona nto iphambili yokukhuthaza imarike yevalvu yeshishini ukuphuhlisa.Kuqikelelwa ukuba ukusuka kowama-2015 ukuya kowama-2017, izinga lokukhula kobungakanani bemarike yevalvu yeshishini liya kugcina malunga ne-7%, liphezulu kakhulu kunesantya sokukhula koshishino lwevalvu yeshishini yehlabathi.
I-Valve licandelo lolawulo lwenkqubo yokuhambisa ulwelo, enemisebenzi yokunqunyulwa, ukulungiswa, ukuphambuka komlambo, ukuthintela umbane, ukuzinzisa umbane, i-shunt okanye i-overflow kunye ne-decompression.Ivalve ihlelwa ngokwevalve yolawulo lweshishini kunye nevalve yoluntu.I-valve ye-industrial isetyenziselwa ukulawula ukuhamba kweendaba, uxinzelelo, ubushushu, isikhululo solwelo kunye nezinye iiparamitha zobugcisa.Ngokusekwe kwimigangatho eyahlukeneyo, ivalve yeshishini inokwahlulwa ngokweendidi ezahlukeneyo.Kwiintlobo zolawulo, ivalve ihlelwa ngokwemimiselo, ukusika, ummiselo kunye nokusika;ngokwezixhobo zevalve, ivalve ihlelwa ngokwentsimbi, engeyiyo intsimbi kunye nelinen yentsimbi;ngokusekwe kwiindlela zokuqhuba, ivalve yeshishini ihlelwa ngohlobo lombane, uhlobo lwe-pneumatic, uhlobo lwehydraulic kunye nohlobo lwemanuwali;Ngokusekwe kwiqondo lobushushu, ivalve ihlelwa ibe yivalve yobushushu obuphantsi, ivalve yobushushu obuphantsi, ivalve yobushushu obuqhelekileyo, ivalve yobushushu obuphakathi kunye nevalve yobushushu obuphezulu kunye nevalve inokwahlulwa ibe yivacuum valve, ivalve yoxinzelelo oluphantsi, ivalve yoxinzelelo oluphakathi, ivalve yoxinzelelo oluphezulu kunye ne-Ultra. ivalve yoxinzelelo oluphezulu.
Ushishino lwevalvu yaseTshayina lwaqalwa ngoo-1960.Phambi ko-1980, i-China yayinokwenza kuphela ngaphezu kwe-600 iindidi kunye ne-2,700 yemilinganiselo yeemveliso zevalvu, iswele isakhono sokuyila i-valve enemilinganiselo ephezulu kunye nomxholo ophezulu wobugcisa.Ukuhlangabezana nemfuno yevalvu eneeparamitha eziphezulu kunye nomxholo ophezulu wobugcisa obangelwa kushishino kunye nezolimo e-China eziphuhlayo kakhulu, ukususela ngo-1980.I-China yaqala ukusebenzisa ingcamango edibanisa uphuhliso oluzimeleyo kunye nokwaziswa kobuchwepheshe ukuphuhlisa itekhnoloji yevalve.Amanye amashishini eevalve eziphambili aphucula uphando lwetekhnoloji kunye nophuhliso, ephakamisa isantya esiphezulu sokungenisa iteknoloji yesivalo.Okwangoku, i-China sele yenze i-valve yesango, ivalve yeglowubhu, ivalve ye-throttle, ivalve yebhola, ivalve yebhabhathane, i-diaphragm vale, ivalve yeplagi, ivalve yokukhangela, ivalve yokhuseleko, ivalve yokunciphisa, ivalve kunye nezinye ivalve, kubandakanywa iindidi ezili-12, ezingaphezu kwe-3,000. iimodeli kunye nemilinganiselo engama-40,000.
Ngokwe-statics ye-Valve World, imfuno yentengiso yehlabathi jikelele yevalvu yemizi-mveliso iqulethe ukomba, uthutho kunye ne-petrifaction.I-oyile nerhasi inomlinganiselo ophezulu, ifikelela kuma-37.40%.Imfuno yobunjineli bamandla nobunjineli bemichiza iyalandela, ngokulandelelanayo ibalelwa kwi-21.30% kunye ne-11.50% yemfuno yemarike yevalvu yeshishini yehlabathi.Imfuno yemarike kwii-akhawunti zesicelo ezintathu zokuqala ze-70.20% yemfuno yemarike iyonke.E-China, ubunjineli beekhemikhali, amandla kunye ne-oyile kunye negesi zikwayeyona ntengiso iphambili ye-valve.Imfuno yesivalo ngokulandelelanayo ibalelwa kuma-25.70%, 20.10% kunye ne-14.70% yemfuno epheleleyo.Isixa semfuno sibalelwa kwi-60.50% yemfuno yevalvu iyonke.
Ngokwemfuno yentengiso, imfuno yevalvu kwindawo yogcino lwamanzi kunye nombane wamanzi, amandla enyukliya kunye neshishini lerhasi ye-oyile iya kugcina imeko eyomeleleyo kwixesha elizayo.
Ekugcinweni kwamanzi kunye nombane wamanzi, isicwangciso esikhutshwe yi-Ofisi Jikelele yeBhunga likaRhulumente libonisa ukuba ngo-2020, amandla ombane oqhelekileyo kufuneka afikelele malunga ne-350 yezigidi ze-kilowatts.Ukukhula kwamandla ombane kuya kubangela imfuno enkulu yevalvu.Ukukhula okuthe gqolo kotyalo-mali kumbane oveliswa ngamanzi kuya kuvuselela impumelelo kwivalvu yoshishino.
Ixesha lokuposa: Feb-25-2022