ZvinhuAkukanganisa theWnzeve yeHydraulicSuye kuputikaFracturingNozzles

Kupfekwa kwemhuno nejeti rejeti rejeti rejeti rinonyanya kukukurwa kwezvimedu zvejecha pamadziro emukati memuromo. Kupfeka kwehuputi ndiyo mugumisiro wechiito chejet jet pamadziro emukati emuputi. Zvinowanzotendwa kuti iyo macroscopic vhoriyamu kurasikirwa kwemukati memupumburu nekuda kwekupfeka kunoumbwa nekuunganidzwa kweiyo microscopic vhoriyamu kurasikirwa kunokonzerwa nekukanganisa kwechikamu chimwe chejecha. Kunyura kwejecha pamusoro pemukati memuromo kunyanya kunosanganisira maitiro matatu: micro-kucheka kupfeka, kuneta kupfeka uye brittle fracture kupfeka. Kunyangwe iwo matatu mafomu ekupfeka achiitika panguva imwe chete, nekuda kweakasiyana maitiro eiyo nozzle zvinhu uye hunhu hwejecha zvidimbu, mamiriro ekushushikana mushure mekukanganisa kwakasiyana, uye chikamu chetatu chekupfeka mafomu chakasiyana.

1. Zvinhu zvinokanganisa kupfekwa kwenozzle

1.1 Material zvinhu zvenozzle pachayo

Parizvino, zvinhu zvinowanzo shandiswa kugadzira jet nozzles zvinonyanya simbi yekushandisa, ceramics, simende carbide, matombo ekugadzira, dhaimondi zvichingodaro. Themicro-structure, kuomarara, kuomarara uye zvimwe zvemuviri uye zvemichina zvimiro zvezvinhu zvine zvakakosha pamhedzisiro yekupfeka kwayo.

1.2 Yemukati inoyerera chiteshi chimiro chimiro uye geometric paramita.

Kuburikidza nekuenzanisa kwemhando dzakasiyana dzemanozzles, munyori akaona kuti mu hydraulic sandblasting jet system, iyo inogara ichichinja inomhanya bhudzi iri nani pane yakakwenenzverwa muromo, iyo yakakwenenzverwa muromo iri nani pane iyo conical nozzle, uye conical nozzle iri nani pane iyo. conical nozzle. Iyo dhayamita yekubuda kwenozzle kazhinji inotariswa nekuyerera uye kumanikidza kwejeti. Kana chiyero chekuyerera chisina kuchinjika, kana iyo dhayamita yekubuda ikaderedzwa, kudzvanywa uye kuyerera kweyero kuchava hombe, izvo zvichawedzera kukanganisa kinetic simba rejecha zvimedu uye kuwedzera kupfeka kwechikamu chekubuda. Kuwedzera dhayamita yejet nozzle kuchawedzerawo kupfeka kwemazhinji, asi panguva ino kurasikirwa kwemukati kunoderedzwa, saka iyo yakanakisa dhayamita yebhobho inofanira kusarudzwa. Mhedzisiro yacho inowanwa nenhamba yekutevedzera ye nozzle flow field ine akasiyana conction angles.

Kupedzisa, fkana conical nozzle, iyo diki diki dhizaini Angle, iyo yakanyanya kugadzikana kuyerera, kuderera kusinga dhirigi, uye kushoma kupfeka kumuromo. Iyo yakatwasuka cylindrical chikamu chemhino chinotamba basa rekugadzirisa, uye kureba kwayo-dhayamita reshiyo inoreva chiyero chehurefu hwechikamu chesilinda cheiyo dhayamita yekubuda, iri parameter yakakosha inokanganisa kupfeka. Kuwedzera kureba kwenozzle kunogona kudzikisira chiyero chekupfeka chekubuda, nekuti nzira yekupfeka curve yekubuda inowedzerwa. The inletangle yemuromo ine mhedzisiro yakananga pakupfeka kwemukati inoyerera ndima. Kana iyo inlet contractionangle inodzikira, iyo yekubuda yekupfeka mwero inoderera mutsara.

1.3 Hushasha hwemukati

Iyo micro-convex pamusoro pemadziro emukati menozzle inoburitsa yakakura kukanganisa kupikisa kune jet-blasting jet. Kubata kwezvimedu zvejecha pachikamu chakabudikira chebulge chinoita kuti pamusoro pe micro-crack iwedzere uye inokurumidzira kupera kweabrasive yemuromo. Nokudaro, kuderedza kushata kwemadziro emukati kunobatsira kuderedza kukakavara.

1.4 Pesvedzero yekuputika kwejecha

Quartz jecha uye garnet zvinowanzoshandiswa mu hydraulic sandblasting fracturing. Kukukurwa kwejecha pachinhu chemuromo ndicho chikonzero chikuru chekupfeka, saka mhando, chimiro, chidimbu chekukura uye kuoma kwejecha zvine simba guru pakupfeka kwemuromo.