Chii chichaitika kumavharuvhu ebhora pakudziya kwakaderera?

Munzvimbo dzakaderera-kupisa, kushanda kwebhora mavharuvhuichakanganiswa zvakanyanya, sezvinoratidzwa pasi apa:

Kuchinja kwezvivakwa zvinokonzeresa kuoma kwekushanda kana kukuvadzwa

Kupisa kwakadzika kunogona kuita zvinhu zvebhora mavharuvhubrittle, kunyanya zvisiri-metallic sealing materials, ayo ekuwedzera coefficient yakakura kupfuura iyo yesimbi zvinhu. Munguva yakaderera-kupisa shrinkage, musiyano mukuputsika pakati pezvisimbiso zvisiri zvesimbi uye miviri yevhavha yesimbi uye zvisimbiso zvakakosha, zvichiita kuti kuderera kwakanyanya kwekuvhara chisimbiso uye kusakwanisa kuvhara. Semuyenzaniso, rabha richarasa zvachose elasticity uye kuva girazi, kurasikirwa chisimbiso ayo zvimiro kana tembiricha iri pazasi girazi kuchinja tembiricha; MuLNG yepakati, rabha richine zvinhu zvinopupuma uye haigone kushandiswa kuLNG mavharuvhu. Pamusoro pezvo, tembiricha yakaderera inogonawo kukonzera kuderera kushushikana brittle kuputsika kwezvinhu. Semuyenzaniso, austenitic Stainless simbi, iyo yaimbove mune metastable state patembiricha yakaderera, inoshanduka kuita martensite kana tembiricha inodonha pazasi pechikamu chekuchinja. Iko kushanduka kwevhoriyamu kunokonzera kuwedzera kwekushushikana kwemukati, zvichiita kuti chisimbiso chepamusoro chiwedzere uye chinokanganisa, zvichiita kuti kuvhara kukundikana.

Kuderedzwa kwekuisa chisimbiso kunotungamirira kune yepakati leakage

Kana yakaderera-tembirichabhora vharafuinoshandisa simbi kune isiri-metal material sealing pair, iyo isiri-simbi zvinhu zvinova zvakaoma uye brittle pakudziya kwakaderera, kurasikirwa nekuomarara kwayo, zvichikonzera kutonhora kuyerera uye kushushikana kuzorora, uye kuderera kwekuisa chisimbiso kuita. Nekudaro, parizvino pakugadzira mavharuvhu ekudzika-tembiricha, zvisiri-simbi zvekuisa chisimbiso zvinhu hazvichashandiswe kana tembiricha iri pazasi -70 ℃, kana kuti inogadziriswa kuita simbi uye isiri-simbi inoumbwa zvimiro. Panguva imwecheteyo, shrinkage isina kuenzana inokonzerwa nekusiyana kwetembiricha munzvimbo dzakasiyana dzezvikamu kana mutsauko wezvinhu zvemuviri pakati pezvinhu zvakasiyana zvinogona zvakare kuburitsa tembiricha inokonzera kushushikana, zvichikonzera kukanganiswa kwe elastic kana kusinga gadzirise kukanganisa kukanganiswa kwenzvimbo yekuisa chisimbiso, iyo inokanganisa kuisa chisimbiso.

Yakanyatsogadzirirwa yakaderera-tembiricha bhora vharafu inogona kuenderana neakadzika-tembiricha nharaunda

Kuti utsungirire dambudziko rekushisa kwakadzika, iyo yakadzika-tembiricha bhora valve inotora yakakosha dhizaini. Kana chifukidziro chevhavha refu yemutsipa chinoshandiswa kuchengetedza bhokisi rekutakura uye kuichengeta kure kure nekudzika kwakadzika kuti ive nechokwadi chekuisa chisimbiso chekuputira, zvinhu zvinotonhora zvekudzivirira zvinogonawo kuputirwa kudzivirira kurasikirwa kwesimba rinotonhora; Kana tembiricha yekushanda iri pazasi -100 ℃, iyo valve stem zvinhu inobatwa ne chrome plating kana nitriding kuvandudza kuoma kwepasi uye kuwedzera kuvimbika kwechisimbiso chekurongedza; Yakashongedzerwa nechigadziro chekudzivirira kusagadzikana kusimuka kwemhepo, kana kumanikidzwa muimba yevhavha kunowedzera, kamuri uye inlet zvakabatana kana kuti vheji yekudzivirira inosungirirwa inoiswa pamucheto wekupinda kuti uone kushandiswa kwakachengeteka; Iyo gasket inoshandiswa inogona kuvharika zvakavimbika uye kuve nekusimba patembiricha yekamuri, yakaderera tembiricha, uye tembiricha shanduko.