Amavalvu ahlukaniswa ngosayizi/ingcindezi/izinga lokushisa/izinto ezibonakalayo/ukuxhumana/ukuphatha

Amavalvu ahlukaniswa ngosayizi/ingcindezi/izinga lokushisa/impahla/ukuxhumana/ukuphatha Ukugqwala kwamakhemikhali ensimbi kuncike ekushiseni, umthwalo wemishini wezingxenye ezishayisanayo, ukuzinza kwama-sulfide aqukethwe ezintweni zokugcoba kanye nokumelana ne-asidi, isikhathi sokuxhumana okuphakathi kanye nomthelela we-catalytic wensimbi enqubweni ye-nitriding, izinga lokuguqulwa lama-molecule ezinto ezonakalisayo zibe izinsimbi, njll. 1, ukugqwala kwevalvu, ngokuvamile kuqondwa njengensimbi yensimbi endaweni yamakhemikhali noma ye-electrochemical ngokubhujiswa. Njengoba ukugqwala kwenzeka ekusebenzelaneni okuzenzakalelayo phakathi kwezinsimbi nendawo ezungezile, indlela yokuhlukanisa izinsimbi endaweni ezungezile noma ukusebenzisa izinto zokwenziwa ezingezona ezensimbi sekuyinkinga evamile. 2. Kuyaziwa ukuthi ukulimala kokugqwala kwensimbi kunomthelela omkhulu empilweni, ukwethembeka kanye nempilo yesevisi yama-valve. Isenzo sama-ejenti emishini kanye ne-corrosion ensimbi kukhulisa kakhulu inani eliphelele lokuguga endaweni yokuxhumana. I-valve ngesikhathi sokusebenza, ukungqubuzana kobuso benani eliphelele lokugqoka. Ngesikhathi sokusebenza kwe-valve, izindawo zokungqubuzana ziyagugiswa futhi zilimale ngenxa yesenzo somshini ngesikhathi esisodwa kanye nokusebenzisana kwamakhemikhali noma kwe-electrochemical phakathi kwensimbi nendawo ezungezile. Ku-valve, izimo zezulu zepayipi layo ziyinkimbinkimbi; Ukuba khona kwe-hydrogen sulfide, i-carbon dioxide kanye namanye ama-asidi e-organic emafutheni, igesi yemvelo kanye namanzi e-reservoir kwandisa amandla abhubhisayo endaweni yensimbi, ngaleyo ndlela ilahlekelwa ngokushesha ikhono layo lokusebenza. I-3, ngenxa yokugqwala kwamakhemikhali ensimbi kuncike ekushiseni, umthwalo wemishini wezingxenye zokungqubuzana, izinto zokugcoba eziqukethe i-sulfide kanye nokuzinza kwayo kokumelana ne-asidi kanye nobude bokuxhumana obuphakathi nensimbi kunqubo ye-nitriding yesenzo se-catalytic, ukugqwala kwama-molecule ezinto ezibonakalayo. ngesivinini sokuguqulwa kwensimbi nokunye. Ngakho-ke, indlela ye-anticorrosion ye-valve yensimbi (noma isilinganiso) kanye nokusetshenziswa kwe-valve yezinto zokwenziwa kube ngenye yezindikimba zocwaningo lwemboni yama-valve. I-4, i-valve yensimbi ye-anticorrosion, ingaqondwa njenge-valve yensimbi eboshwe ukuze ivikele isimo sesendlalelo esivikelayo ekugqwaleni (njengopende, upende, izinto zokugcoba, njll.), ukuze i-valve kungakhathaliseki ukuthi ikhiqizwa, igcinwa, ithuthwa. noma kuyo yonke inqubo yokusetshenziswa kwayo azigqwalile. I-5, indlela ye-valve yensimbi ye-anticorrosion incike esikhathini esidingekayo sokuvikela, izimo zokuhamba nezokugcina, izici zesakhiwo se-valve nezinto zokwakha, yebo, ukucabangela umphumela wezomnotho wokukhipha i-anticorrosion. Ukuhlelwa kwamavalvu ngokuya ngobubanzi obungajwayelekile/ingcindezi/izinga lokushisa/izinto ezibonakalayo/imodi yokuxhuma/imodi yokusebenza Ukuhlelwa kwamavalvu ngokuya ngobubanzi obujwayelekile 1, "i-valve yobubanzi obuncane" ububanzi obuncane DN≤40mm 2, "i-valve yobubanzi obumaphakathi" ububanzi obujwayelekile DN50-300mm 3, "i-valve enkulu yobubanzi" I-valve engu-DN350-1200mm 4, "i-valve eyi-diameter enkulu" i-valve eyi-DN≥1400mm valve ihlukaniswa njengama-valve osayizi okuzisholo 1, "i-valve ye-caliber encane" ububanzi obujwayelekile DN≤40mm valve 2, "phakathi i-valve ye-caliber" i-diameter ye-DN50-300mm 3, "i-valve enkulu ye-caliber" i-valve engu-DN350-1200mm 4, "i-valve enkulu yobubanzi" ububanzi begama DN≥1400mm I-valve Ukuhlelwa kwama-valve okuzisholo 1, "i-vacuum valve" ingcindezi yokusebenza iphansi kune-valve ye-atmospheric pressure valve 2, "i-valve yengcindezi ephansi" ingcindezi yegama elithi PN≤ 1.6mpa valve 3, "i-valve yokucindezela okuphakathi" i-PN2.5-6.4mpa valve 4, "i-valve yomfutho ophakeme" ingcindezi encane PN10.0-80.0mpa i-valve engu-5, "i-valve ephezulu yomfutho ophezulu" i-valve ye-PN≥100MPA Ngokwezinga lokushisa eliphakathi nendawo yokusebenza kwe-valve isigaba 1, "i-valve yokushisa ephezulu" T > 450℃ valve 2, "i-valve yokushisa ephakathi" 120℃≤ T ≤450℃ valve 3, "i-valve yokushisa evamile" -40℃≤ T ≤120℃ i-valve 4, "i-valve yokushisa ephansi" -100℃≤ T ≤-40℃ i-valve 5, "** i-valve yokushisa" T