Kulemeletsa
Valavundi chinthu chofunikira kwambiri pamakina onse. Imakhazikitsidwa pamapaipi kapena zida zosiyanasiyana kuti ayendetse kuyenda kwa sing'anga posintha malowa mu valavu. Ntchito zake ndi: kulumikiza kapena kudula pakati, kupewa sing'anga kuchokera kumbuyo, sinthani masipidwe apakatikati kapena kuteteza mapaipi ndi zida kuchokera kumphepete, etc.
Pali mitundu yambiri ya valavu ya valavu, yomwe imagawidwapachipata, valavu yapadziko lapansi,Chongani valavu, valavu ya mpira,Gulugufe wa Gulugufe, Pulogalamu valavu, valavu ya diaphragm, valavu ya chitetezo, valavu yowongolera (valavu) Malinga ndi zomwe zanenedwapo, zimagawika chitsulo, chitsulo cha kaboni, chitsulo cha alsimitic, champhamvu kwambiri Mapaipi ndi mapaipi, mavunda opanga ma nyukiliya, mavuvu a zombo ndi mavesi a clovegenic. Magawo osiyanasiyana a valavu, kukula kwa mwadzina kuchokera kwa DN1 (unit mu mm) kupita ku DN970; Kupanikizika kwa nomwena kuchokera ku Ultra-Vucuum ya 1× 10-10 mmhg (1mmhg = 133.3222Po) ku Ultra-yayikulu kwambiri ya PN14600 (gawo la 105 pa); Kutentha kogwira ntchito kumayambira kutentha kwa ma ultra -269℃Kutentha kwambiri kwa 1200℃.
Mavavu amagwiritsidwa ntchito kwambiri m'magulu osiyanasiyana adziko lapansi, monga mafuta, mpweya wa chilengedwe, mafuta ndi mpweya, makina opanga mankhwala, mphamvu zopangidwa ndi nyukiliya; Mitundu yosiyanasiyana ya mavu amagwiritsidwa ntchito kwambiri potentha ndi mphamvu zamagetsi, makina opanga madzi otumizira, magalimoto, ndege ndi makina othilira, ndi makina osungirako minda. Kuphatikiza apo, m'minda ya New Technologies monga chitetezo ndi ambospace, mavuvu osiyanasiyana okhala ndi katundu wapadera amagwiritsidwanso ntchito.
Rave pa akaunti yazinthu zopangira zambiri zamakina. Malinga ndi ziwerengero za mayiko otukuka akunja, mtengo wotulutsa maamba wa maamba pafupifupi 5% ya mtengo wotulutsa makina ogulitsira makina. Malinga ndi ziwerengero, chomera champhamvu cha nyukiliya chopangidwa ndi mayunitsi a kilowatt pafupifupi 28,000, omwe mavesi pafupifupi 12,000 omwe ali pachilumba cha nyukiliya. Kuvuta kwamakono kwakukulu kumafunikira mazana mazana ambiri a mavavuni osiyanasiyana, ndipo ndalama zomwe zili m'mawu zikauntizi zimapereka 8% mpaka 10% ya ndalama zonse mu zida.
Mkhalidwe wapamwamba wa valve ku China wakale
01 Malo obadwira ku China: Shanghai
Ku China, Shanghai anali woyamba kupanga ma valve ku China. Mu 1902, Pan Shunji Copper Comshop, yomwe ili pa rompur Road, district ya Hongkou, Shanghai, idayamba kupanga mitu yaying'ono ya teapot ndi dzanja. Faapot Faucet ndi mtundu woponya tambala wamkuwa. Ndiwo wopanga bwino kwambiri ku China odziwika mpaka pano. Mu 1919, Dema (Shengji) fakitale (yokhazikitsidwa ndi fakitale yamakina) idayamba kuchokera pa njinga yaying'ono yamkuntho ndipo idayamba kupanga ma tack ochepa, mavesi apachipadera, chipata chamoto ndi ma hydrants moto. Kupanga ma vumbi isanu ndi mu 1926, yokhala ndi kukula kwa NPS6 (mainchesi, NPS1 = DN25.4). Munthawi imeneyi, mafakitale a Hardware monga Wang Yungqang, Dahua, Lao Demao ndi Maoxu adatsegulanso mavesi. Pambuyo pake, chifukwa chowonjezeka pakufunikira kwa mavavu opukutira pamsika, mafakitale ena amafala, mafakitale amatsulo, mchenga wopezeka (kuponyera) mafakitale ndi mafakitale otseguka.
Gulu lopanga vala limapangidwa m'malo a Zhonghongqao, waihongqiao, Road Road ndi Changzhi mseu ku Hongkou District, Shanghai. Panthawiyo, zogulitsa bwino kwambiri pamsika wokhala ndi nyumba zinali "mutu wahatchi", "atatu 8", "chinsalu chachitsulo", "nkhuku", mpira wa mphungu ". Makina otsika kwambiri amatulutsa nkhuni ndikupanga ma valve hufu amagwiritsidwa ntchito makamaka pazitsulo zomangamanga pomanga nyumba ndi ma nguluting'ono, ndipo mavuvu ochepera amagwiritsidwanso ntchito pazakudya zowunikira. Mafakitale awa ndi ochepa kwambiri pamlingo, okhala ndi ukadaulo wakumbuyo, zida zosavuta zobzala ndi zotulutsa zotsika, koma ndi malo obadwira kumbuyo kwa China. Pambuyo pake, atakhazikitsidwa kukhazikitsa kwa Shanghai Makoma a Hanghai, opanga izi apangana nawonso gulu linalo ndi kukhala gulu lamadzi. membala.
02Twa Great-Scal Valve wopanga zomera
Kumayambiriro kwa 1930, Shanghai Shenhe Makina Makina Opanga Fakitale Yopangidwa Kupanga Chitsulo Mavesi Pansi pa Npp12 Chifukwa madzi amagwira ntchito. Mu 1935, fakitaleyo idakhazikitsa mgwirizano wokhala ndi Piipe faip faipe faip faission co., Ltd.≈3.33m) Zisanu ndi kukweza zida, makamaka zopanga mafakitale, zimaponyera mavuvu amadzi, ndipo imatha kupanga ndi kutumizidwa ndi nanzeng, hangezhou ndi Berzzhou ndi Berzzhou ndi Beangzu ndi Beangzu ndi Beangzu ndi Berzzhou ndi Berving. Pambuyo pa "August" Chaka chotsatira chiwonjezeko cha likulu ndi ntchito. NPS14 ~ ~ NSP36 Tsitsani zitsulo zazachitsulo, koma chifukwa cha kupsinjika kwachuma, bizinesi yaulesi, ndipo sanathe kuchira mpaka atakhazikitsidwa kwa China chatsopano.
Mu 1935, ogawana asanu kuphatikizapo LI Chenghai, wochita bizinesi wa dziko, lolemba shenyang chengfarosion fangfion (lomwe linali lopanga ma shishiwei, nancheng chigawo cha Shishing. Kukonza ndi kumapanga maamba. Mu 1939, fakitalayo adasamukira ku Beierma Road, chigawo cha Taxi Districticle kuti iphule, ndipo zokambirana zazikulu ziwiri zoponyera ndi zamakina zidamangidwa. Podzafika mu 1945, anali atakula kwa ogwira ntchito 400, ndipo zopangidwa zake zazikulu zinali: ogwiritsa ntchito ma vailer akulu, ponyani mavesi a mkuwa, ndi mobisa zimaponya chipata chachitsulo chokhala ndi ma valve omwe ali pansipa DN800. Shenyang Chengfarory fakitale ndi wopanga valavu ikulimbana ndi moyo ku China.
03the valve mafakitale kumbuyo
Nkhondo ya Anti-Japan, mabizinesi ambiri ku Shanghai ndi malo ena anasamukira kumwera chakumadzulo, kotero kuchuluka kwa mabizinesi ku Chopqing ndi malo ena kumbuyo komwe kumachitika, ndipo makampaniwo adayamba kupanga. Mu 1943, chongong Hongtai Makina Ofakitale a Huacehang (mafakitale onsewa ndi omwe anali otsogola) fakitale ya chipongwe) amayamba kukonza zigawo zambiri ndikupanga mavesi aboma. Chipambano cha anti-Japan nkhondo ya Japan, alongo a Veheng Hardware, Jinhuny Hardware fano factory ndi qiyi zida za qiyi zidatsegulidwa kuti apange ma valves ang'onoang'ono. Pambuyo pa kukhazikitsidwa kwa China chatsopano, mafakitale awa adaphatikizidwa ku fakitale yongong.
Nthawi imeneyo, enaOpanga valavuKu Shanghai adapitanso ku Tianjin, nanjing ndi Wuxi kuti amange mafakitale kuti azikonza ndikupanga mavesi. Mafakitale ena a Hardware, mafakitale achitsulo, mafakitale kapena mafakitale am'mimba, Dalian, anchzuo, phzaangzhou, ringhou ndi guangzhou achita kukonza ndi kupanga mavesi ena olumala.
Post Nthawi: Jul-21-2022
