Matambudziko akajairika mukuyedza kwemoto wevharuvha Hukama huri pakati pehukuru hwevharuvhu uye yepakati velocity
Maitiro ekugadzira petrochemical indasitiri yakaoma, uye zvigadzirwa, semi-akapedza zvigadzirwa, zvakapedzwa zvigadzirwa uye zvakasiyana-siyana zvekubatsira zvinhu zvinoshandiswa mukugadzira zvinonyanya kupisa uye zvinoputika zvinhu, zviri nyore kukonzera moto netsaona. Uye inoshandiswa mune mamwe mamiriro emoto ari nyore evharuvhu, nekuda kwengozi inogona kuitika yemoto, kazhinji pane yakakosha dhizaini, kuitira kuti vharafu mune imwe nguva mushure memoto ichine imwe yekuisa chisimbiso kuita uye kushanda kwekushanda. Pakuyera kusamira kwemoto kwemavharuvhu, bvunzo dzemoto inzira yakakosha yekuona mavharuvhu. Moto kuramba bvunzo yemavharuvhu anoshandiswa muindasitiri yepetrochemical yakabatanidzwa kukosha kukuru kumba nekune dzimwe nyika uye mazinga akakodzera akagadzirwa.
Test standard
Zvinoenderana neyakasiyana mamiriro ekushandisa uye mabasa echigadzirwa, iwo mavharuvhu emoto bvunzo zviyero zvakare akasiyana, seAmerican Petroleum Institute yakagadzira yakajairwa ANSI/API607-2005 yechigaro chakapfava 1/4 mavharuvhu ekutendeuka, API6FA-1999 yemapaipi mavharuvhu uye matsime emvura. , uye API6FD-1995 yekutarisa mavharuvhu. Sangano repasi rose reKumisikidza rakagadzira yakajairwa ISO10497-2004 yekuyedza kupisa moto kwemavharuvhu akasiyana-siyana, uye nyika yedu yakagadzira yakajairwa JB/T6899-1993 yeiyo moto kuramba bvunzo system uye nzira zvinodiwa.
Matambudziko akajairika muvhavha moto kuramba bvunzo
marudzi
Panguva yemoto
Low pressure test
Operation test
zvimwe
Ball valve
Inoyangarara bhora vharafu
Zvese zviri zviviri mukati nekunze kuvuza kwechigaro chevhavha yakapfava kunogona kuitika, uye panogona kuve nekudonha paflange nedzinde revharuvhu panguva yemoto, nepo kubuda kwechigaro chevharuvha yakaoma chisimbiso kazhinji kudiki.
Kubuda kwemukati kunogona kuwedzera mukuyedzwa kwakaderera mushure mekutonhora
Mushure mekushanda, kubuda kwekunze kuri nyore kupfuudza chiyero, uye nzvimbo yekuvuza inowanzove yekubatana kweflange yemuviri wevharuvhu uye hunde hwevharuvhu.
Fixed bhora vharafu
Zvose mukati nekunze kuvuza kwechigaro chevhavha yakapfava inogona kuitika. Munguva yemoto, panogona kuve nekudonha paflange, hunde yevharuvhu uye bhora rekutsigira shaft yevharuvhu, nepo kubuda kwechigaro chevharuvha yakaoma chisimbiso kazhinji kudiki.
Kubuda kwemukati kunogona kuwedzera mukuyedzwa kwakaderera mushure mekutonhora
Mushure mekushanda kweyekunze kuvuza bvunzo kuvuza kuri nyore kupfuudza chiyero, nzvimbo yekuvuza inowanzova yevhavha yemuviri flange, valve stem uye bhora rekutsigira shaft.
Ivhavhavha yebhora ine chimiro chebhora chakamisikidzwa ndeyemhando yekumusoro yekuvharisa, uye iyo yemukati inobuda panguva yekupisa inofanira kubviswa kubva pamvura yekuchengetedza vhoriyamu muvhavha yemuviri mhango.
Yakazara bhora vharafu
Kubuda kwemukati kuri nyore kuoneka, uye kubuda kwekunze kunogona kuoneka pahunde
Internal leakage inogona kuwedzera
Kubuda kwekunze kunowanzo kudiki, chete hunde inogona kuoneka kubuda kwekunze
Flat gedhi vharafu
Internal leakage ishoma mune zvimwe zvigadzirwa, kubuda kwekunze muvhavhavha yemuviri kubatana kana dzinde zvinogoneka
Kubuda kwemukati kazhinji kudiki
Mushure mekushanda, iyo yevhavha yemuviri yekubatanidza, dzinde uye gomba rekudonhedza zvinotapukira kune kubuda kwekunze
jongwe
Soft seal valve leakage yakakura kwazvo, haigone kuvimbiswa zvakanaka, hard seal valve kuvuza idiki
Low pressure test mushure mekutonhodza nyoro seal valve kuvuza kunowanzo hombe, hard seal valve kuvuza kunowanzo idiki.
Mushure mekushanda, kuvuza kweyekunze yekuvuza bvunzo kuri nyore kupfuura mwero, uye nzvimbo yekuvuza inowanzove yekubatana kweflange yemuviri wevharuvhu uye hunde hwevhavha.
Butterfly valve
Kubuda kwemukati kuri nyore kuoneka kune zvimwe zvigadzirwa, uye kubuda kwekunze kunogona kuoneka pahunde
Leakage iri nyore kuoneka mu low pressure test mushure mekutonhodza
Mushure mekushanda, hunde yevharuvhu uye shaft yekutsigira inotarirwa kune kubuda kwekunze
Globe valve
Internal leakage ishoma mune zvimwe zvigadzirwa, kubuda kwekunze muvhavhavha yemuviri kubatana kana dzinde zvinogoneka
Kubuda kwemukati kazhinji kudiki
Mushure mekushanda, kuvuza kweyekunze yekuvuza bvunzo kuri nyore kupfuura mwero, uye nzvimbo yekuvuza inowanzove yekubatana kweflange yemuviri wevharuvhu uye hunde hwevhavha.
Cheki valve
Kubuda kwemukati kuri nyore kuoneka mune zvimwe zvigadzirwa, kubuda kwekunze mumuviri wevharuvhu uye yevhavhavhavha yevhavha yekubatanidza inogona kuoneka.
Leakage iri nyore kuoneka mu low pressure test mushure mekutonhodza
Mushure mekushanda kweyekunze kuvuza bvunzo kuvuza kuri nyore kupfuudza chiyero, nzvimbo yekuvuza inowanzova muviri wevhavha uye chivharo chevhavha yekubatanidza.
Muyedzo wekudzivirira moto wevharuvhu ndeyekutevedzera bvunzo yevhavha munzvimbo yemoto. Inogona kunyatsoratidza uye zvinobudirira kupikisa moto kwevhavha yekuedza. Izvo zvakakosha zvikuru pakutsvakurudza kwechimiro chekudzivirira moto chevhavha uye kuongororwa kwekudzivirira moto kwevhavha.
Valve dhayamita uye yepakati kuyerera mwero pakati pehukama pakati penzvimbo yekuyerera yevharuvhu uye chiyero chekuyerera, kuyerera kune hukama hwakananga, uye chiyero chekuyerera uye kuyerera zvinhu zviviri zvinoenderana. Apo chiyero chekuyerera chinoramba chiripo, kuyerera kwevelocity yakakura, nzvimbo yekuyerera inogona kuva duku; Chiyero chekuyerera idiki, nzvimbo yekuyerera inogona kuve yakakura. Pane zvinopesana, nzvimbo yechiteshi inoyerera yakakura, chiyero chekuyerera idiki; Iyo inoyerera chiteshi nzvimbo idiki, kumhanya kwayo kwakakura. Kuyerera kwepakati kwepakati yakakura, dhayamita yevhavha inogona kuva duku, asi kurasikirwa kwekupikisa kwakakura, valve iri nyore kukuvadza. High flow rate, inopfuta uye inoputika svikiro inoburitsa electrostatic effect, ichikonzera njodzi; Mwero wekuyerera wakanyanya kudiki, haushande, hauna hupfumi.
Kuyerera uye kukurumidza kwevhavha rinonyanya kuenderana nehupamhi hwevhavha, asi zvakare zvine chekuita nekupokana kwechimiro chevhavha kusvika pakati, uye kudzvanywa kwevhavha, tembiricha uye kusangana kwepakati uye zvimwe zvinhu. iva nekubatana kwemukati.
Valve passage area uye mwero wekuyerera, mwero wekuyerera une hukama hwakananga, uye mwero wekuyerera nekuyerera zvinhu zviviri zvinopindirana. Apo chiyero chekuyerera chinoramba chiripo, kuyerera kwevelocity yakakura, nzvimbo yekuyerera inogona kuva duku; Chiyero chekuyerera idiki, nzvimbo yekuyerera inogona kuve yakakura. Pane zvinopesana, nzvimbo inoyerera yechiteshi yakakura, chiyero chekuyerera idiki; Iyo inoyerera chiteshi nzvimbo idiki, kumhanya kwayo kwakakura.
Kuyerera kwepakati kwepakati yakakura, dhayamita yevhavha inogona kuva duku, asi kurasikirwa kwekupikisa kwakakura, valve iri nyore kukuvadza. High flow rate, inopfuta uye inoputika svikiro inoburitsa electrostatic effect, ichikonzera njodzi; Mwero wekuyerera wakanyanya kudiki, haushande, hauna hupfumi. Kune yepakati ine viscosity yakakura uye inoputika, chiyero chekuyerera chinofanira kunge chiri chidiki. Mafuta uye mvura ine viscosity yakakura sarudza kuyerera kweyero ine viscosity, kazhinji inotora 0.1 ~ 2m/s.
Kazhinji, vhoriyamu inozivikanwa uye chiyero chekuyerera chinogona kutsanangurwa empirically. Saizi yezita revhavha inogona kuverengerwa kubva pakuyerera uye kuyerera.
Saizi yevharuvhu yakafanana, chimiro chayo chakasiyana, kupikisa kwemvura hakuna kufanana. Pasi pemamiriro akafanana, iyo yakakura yekudzivirira coefficient yevhavha, iyo inowedzera kuyerera uye kuyerera kwemvura kuburikidza nekudonha kwevhavha; Iyo diki yevhavha inopikisa coefficient, zvishoma kuyerera uye kuyerera kwemvura kuburikidza nevhavha inoderera.
Kusarudzwa kwevharuvhu dhayamita kunofanirwa kufunga nezve machining kururamisa uye saizi kutsauka kwevhavha, pamwe nezvimwe zvinhu. Saizi yevhavha inofanira kunge iri imwe hupfumi, kazhinji 15%. Mubasa chairo, saizi yevharuvhu neiyo process pipeline size.
Nguva yekutumira: Aug-20-2022
