Ovaviu fɔ di tin dɛn we dɛn dɔn lan
Valv we dɛn kɔlna impɔtant prɔdak na jenɛral mashin. Dɛn kin instɔl am pan difrɛn paip ɔ divays dɛn fɔ kɔntrol di flɔ we di midiɔm de flɔ bay we dɛn de chenj di chanɛl eria na di valv. I wok na: kɔnɛkt ɔ kɔt di midiɔm, mek di midiɔm nɔ flɔ bak, ajɔst di paramita dɛn lɛk midul prɛshɔn ɛn flɔ, chenj di flɔ dairekshɔn fɔ di midiɔm, sheb di midiɔm ɔ protɛkt di paip layn ɛn ikwipmɛnt frɔm ɔva prɛshɔn, ɛn ɔda tin dɛn.
Bɔku difrɛn kayn valv prodakt dɛn de, we dɛn sheb toget valv we de na di get, glob valv, .chɛk valv, bɔl valv, .bɔtaflay valv, plɔg valv, dayafragm valv, sefty valv, rigyulatin valv (kɔntrol valv), throttle valv, prɛshɔn ridyus valv ɛn Trap, ɛn ɔda tin dɛn; Akɔdin to di matirial, dɛn sheb am to kɔpa alɔy, kas ayɛn, kabɔn stɛl, alɔy stɛl, ɔstenitik stɛl, fɛriti-ɔstentik dual-faz stɛl, nikɛl-bɛs alɔy, taytaniɔm alɔy, injinɛri plastic ɛn sɛramik valv, ɛn ɔda tin dɛn Apat frɔm dat, spɛshal valv dɛn de lɛk ɔlta-hay prɛshɔn valv, vaykum valv, pawa steshɔn valv, valv fɔ paip ɛn paip layn, valv fɔ nyuklia industri, valv fɔ ship ɛn krayojɛnik valv. Waid rεnj כf valv paramita, nominal saiz frכm DN1 (yunit in mm) to DN9750; nominal prεshכn frכm ultra-vεkyum כf 1× 10-10 mmHg (1mmHg = 133.322Pa) to ɔltra-hay prɛshɔn fɔ PN14600 (yunit fɔ 105 Pa); Di wokin tεmprachכ de frכm di ultra-lכw tεmprachכ we na -269°Cto di ɔlta-hay tɛmpracha we na 1200°C.
Valv prodakt dɛn dɛn de yuz dɛn bɔku bɔku wan na difrɛn sɛktɔ dɛn na di nashɔnal ikɔmi, lɛk ɔyl, nɛtrɔl gas, ɔyl ɛn gas rifinin ɛn prɔsesin ɛn paip layn transpɔt sistɛm, kemikal prodak, famasitik ɛn it prodakshɔn sistɛm, haydro pawa, tɛmal pawa ɛn nyuklia pawa prodakshɔn sistɛm; Dɛn kin yuz difrɛn kayn valv dɛn bɔku bɔku wan fɔ ɔt ɛn pawa saplai sistem, mɛtal prodakshɔn sistem, fluid sistem fɔ ship, motoka, plen ɛn difrɛn spɔt mashin dɛn, ɛn irigashɔn ɛn drenaj sistem fɔ fam land. Apat frɔm dat, we dɛn de du nyu tin dɛn lɛk difɛns ɛn ɛrospɛs, dɛn kin yuz difrɛn valv dɛn bak we gɛt spɛshal prɔpati dɛn.
Valv prodakt dɛn de mek bɔku pan di mɛkanikal prodakt dɛn. Akɔdin to di statystiks fɔ fɔrin industrializ kɔntri dɛn, di autput valyu fɔ valv dɛn de mek lɛk 5% pan di autput valyu fɔ di ɔl mashin industri. Frɔm wetin dɛn dɔn tɔk, wan tradishɔnal nyuklia pawa plant we gɛt tu milyɔn kilowat yunit dɛn gɛt lɛk 28,000 valv dɛn we dɛn kin sheb, ɛn lɛk 12,000 pan dɛn na nyuklia ayland valv dɛn. Wan mɔdan big-big petrokemik kɔmpleks nid ɔndrɛd tawzin difrɛn valv dɛn, ɛn di invɛstmɛnt na valv dɛn jɔs de mek 8% to 10% pan di ɔl invɛstmɛnt na ikwipmɛnt.
Jɛnɛral sityueshɔn fɔ valv industri na ol Chaina
01 Di ples we dɛn bɔn di valv industri na Chaina: Shanghai
Insay ol Chaena, Shanghai na bin di fɔs ples fɔ mek valv dɛn na Chaena. Insay 1902, Pan Shunji Kɔpa Wokshɔp, we de na Wuchang Rod, Hɔngkou Distrikt, Shanghai, bin bigin fɔ mek smɔl smɔl tipɔt pɔt dɛn wit an. Di tipɔt pɔt na wan kayn kɔpa kɔk we dɛn kin kɔt. Na di fɔs valv manifakta na Chaina we dɛn dɔn no te naw. Insay 1919, Deda (Shengji) Hadwɔd Faktɔri (we bin de bifo Shanghai Transmishɔn Mashin Faktɔri) bin bigin frɔm wan smɔl baysikul ɛn bigin fɔ mek kɔpa kɔk dɛn we gɛt smɔl dayamita, glob valv, get valv ɛn faya haydrant. Fɔ mek kast ayɔn valv dɛn bigin insay 1926, wit maksimal nominal saiz we na NPS6 (insay inch, NPS1 = DN25.4). Insay dis tɛm, hadwae faktri dɛm lɛk Wang Yingqiang, Dahua, Lao Demao ɛn Maoxu bin opin bak fɔ mek valv dɛm. Afta dat, bikɔs di dimand fɔ plaba valv dɛn bin de bɔku na di makit, wan ɔda batch pan hadwae faktri, ayɛn faktri, san fawndri (kastin) faktri ɛn mashin faktri dɛn opin fɔ mek valv dɛn wan afta di ɔda.
Dɛn mek wan grup we de mek valv na di eria dɛn we nem Zhonghongqiao, Waihongqiao, Daming Road ɛn Changzhi Road na Hongkou Distrikt, Shanghai. Da tɛm de, di brand dɛn we dɛn bin de sɛl pas ɔl na di domestik makit na bin “Hɔs Hɛd”, “Tri 8′′, “Tri 9′′, “Dabl Kɔyn”, “Ayɔn Ankɔ”, “Chikin Bɔl” ɛn “Igl Bɔl”. Lɔw-prɛshɔn kast kɔpa ɛn kast ayɛn valv prodakt dɛn kin yuz mɔ fɔ plaba valv dɛn na bildin ɛn sanitayz fasiliti dɛn, ɛn dɛn kin yuz smɔl kast ayɔn valv dɛn bak na di layt tɛkstayl industri sɛktɔ. Dɛn faktri ya rili smɔl, wit bakwɔd tɛknɔlɔji, simpul plant ikwipmɛnt ɛn lɔw valv autput, bɔt na dɛn fɔs bɔn di valv industri na Chaina. Leta, afta dɛn dɔn mek di Shanghai Construction Hardware Association, dɛn valv manifakta dɛn ya dɔn jɔyn di asosieshɔn wan afta di ɔda ɛn bi di watawe grup. mɛmba.
02Tu big-big valv manufakchurin plant dɛn
We 1930 bigin, di Shanghai Shenhe Machinery Factory bin mek lɔw-prɛshɔn kast ayɛn get valv dɛn we de dɔŋ NPS12 fɔ wok na wata. Insay 1935, di faktri bin mek wan jɔyn venchɔ wit Xiangfeng Ayɔn Paip Faktɔri ɛn Xiangtai Ayɔn Kɔmni, Ltd. sheholda dɛn fɔ bil Daxin Ayɔn Faktɔri (we bin de bifo Shanghai Baysikl Faktɔri), insay 1936 Dɛn dɔn dɔn am ɛn put am na prodakshɔn, na lɛk 100 wokman dɛn de, wit imported 2.6 zhang (1 zhang≈ we dɛn kɔl3.33m) lathes ɛn lifting ikwipmɛnt, men wan we de prodyuz industrial ɛn mayning aksesɔri, kas ayɛn wata paip ɛn kast ayɛn valv, di nominal saiz fɔ di valv na NPS6 ~ NPS18, ɛn I kin disayn ɛn saplae kɔmplit sɛt fɔ valv fɔ wata plant, ɛn di prɔdak dɛn de ɛkspɔt to Nanjing, Hangzhou ɛn Beijing. Afta di “Ɔgɔst 13′′ Japan invayda dɛn bin ɔkup Shanghai insay 1937, bɔku pan di plant ɛn ikwipmɛnt dɛn we bin de na di faktri bin pwɛl bay Japan artileri faya.Di nɛks ia inkrisayz kapital ɛn bigin wok bak.NPS14 ~ NPS36 kast ayɛn get valv, bɔt bikɔs ɔf di ikɔnomi dipreshɔn, slɔp biznɛs, ɛn ɔstriti layoff, dɛn nɔ ebul fɔ rikɔva te to di ivintɛm we dɛn bigin fɔ bil Nyu Chaina.
Insay 1935, fayv sheholda dɛn we inklud Li Chenghai, we na wan nashɔnal biznɛsman, bin jɔyn fɔ mek Shenyang Chengfa Ayɔn Faktɔri (we bin de bifo Tieling Valve Factory) na Shishiwei Rod, Nancheng Distrikt, Shenyang Siti. Ripair ɛn mek valv dɛn. Insay 1939, dɛn bin muf di faktri go na Beierma Road, Tiexi Distrikt fɔ mek dɛn go ebul fɔ mek am big, ɛn dɛn bil tu big wokshɔp dɛn fɔ kast ɛn fɔ mek mashin. Bay 1945, i bin dɔn gro to 400 wokman dɛn, ɛn di men tin dɛn we i bin de mek na: big big bɔyl dɛn, kɔpa valv dɛn we dɛn kin yuz fɔ kɔt, ɛn valv dɛn we gɛt kɔst ayɛn get valv dɛn we dɛn kin yuz fɔ mek tin dɛn ɔnda grɔn we nɔ gɛt wan saiz we nɔ pas DN800. Shenyang Chengfa Iron Factory na wan valv manifakta we de tray tranga wan fɔ liv na ol Chaina.
03Di valv industri na di riya
Insay di Anti-Japanese War, bɔku ɛntapraiz dɛn na Shanghai ɛn ɔda ples dɛn bin muf go na di sawt-wɛst, so di nɔmba fɔ di ɛntapraiz dɛn na Chongqing ɛn ɔda ples dɛn na di eria we de biɛn bin go ɔp, ɛn di industri bigin fɔ divɛlɔp. Insay 1943, Chongqing Hongtai Machinery Factory ɛn Huachang Machinery Factory (ɔl tu faktri dɛn na bin di wan dɛn we bin de bifo Chongqing Valve Factory) bin bigin fɔ ripɛnt ɛn mek plaba pat ɛn lɔw-prɛshɔn valv dɛn, we bin ple big pat fɔ divɛlɔp di tɛm we dɛn bin de mek tin dɛn na di riya ɛn fɔ sɔlv di sivil valv dɛn. Afta di win we di Anti-Japan Wɔ bin win, Lisheng Hadwɔd Faktɔri, Zhenxing Indastrial Sɔsayti, Jinshunhe Hadwɔd Faktɔri ɛn Qiyi Hadwɔd Faktɔri bin opin wan afta di ɔda fɔ mek smɔl valv dɛn. Afta dɛn bin mek Nyu Chaina, dɛn bin jɔyn dɛn faktri ya to Chongqing Valve Factory.
Da tɛm de, sɔmdi wan dɛn we de mek valvna Shanghai bin go bak na Tianjin, Nanjing ɛn Wuxi fɔ bil faktri dɛn fɔ mek ɛn mek valv dɛn. Sɔm hadwae faktri dɛm, ayɛn paip faktri dɛm, mashin faktri dɛm ɔ shipyard dɛm na Pekin, Dalian, Changchun, Harbin, Anshan, Qingdao, Wuhan, Fuzhou ɛn Guangzhou dɔn de du bak fɔ ripɛnt ɛn mek sɔm plaba valv dɛm.
Di tɛm fɔ post: Jul-21-2022
