Munoziva, kana vanhu vazhinji vari kunze kwemunda vakanzwa 'cheki valve', vanofungidzira cheki iri nyore mumutsara wemvura. Zvakanaka, asi hazvimbokwenya pamusoro. Hurukuro chaiyo inotanga kana iwe uchitsanangura imwe yeane-high-pressure steam line, kana corrosive chemical transfer system, wobva waona sarudzo pakati pecheki yewafer-plate uye cheki yepiston haisi yedzidzo-ndiwo mutsauko uripo pakati pechirongwa chinofembedza neinozvinyudza kuita zvidimbu mumwedzi mitanhatu. Ndakaona zvose.
Iyo Core Basa uye Iyo Yakavanzwa Kuoma
Nheyo yacho yakafa nyore: kudzivirira kudzokera shure. Asi kuurayiwa? Ndiko kunovigwa makumi emakore ekutemwa nemusoro. Haisi chete nezve disc kana bhora rinomisa reverse kuyerera; ndezvekuti inovhara nekukurumidza sei, kudonhedza kwekumanikidza kwainogadzira kana yakavhurika, uye chii chinoitika mune iyo kupatsanurwa-yechipiri kana kuyerera kuchidzokera kumashure. Kunonoka-kuvhara cheki vharafu mumutsetse wepombi inobudisa mvura inogona kukonzera sando yemvura zvakanyanya zvokuti inonzwa kunge pombi iri kurohwa nesando. Ndakadzidza kuti nzira yakaoma pamvura inotonhorera pakutanga kwebasa rangu. Takashandisa cheki yekugezera nekuti yaive yakachipa uye iripo. Mafungu ekuvhundutsa akakonzeresa akatsemura zvakakodzera mwedzi miviri mushure mekutumwa. Mutengo wevhavha yakanga isingakoshi kana ichienzaniswa nekuderera uye kugadzirisa.
Ndosaka kusarudzwa kwezvinhu kuchive kwakakosha. Simbi yekukanda inogona kushandira mvura isiri-yakakosha, asi chero chinhu chine kupisa, ngura, kana abrasion, uri kutarisa simbi, isina tsvina, kana alloys akakosha. Apa ndipo apo kubatana neakatanga uye machinist anonzwisisa zvikamu zvinoshanda kwakakosha. Ndakashanda nevashambadziri vakaita Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) pamapurojekiti anoda tsika cheki mavharuvhu miviri. Chiitiko chavo mu shell mold casting uye Investment casting kune yakaoma geometries, inoteverwa nechaiyo CNC machining yechigaro uye hinge points, ndiyo inoshandura dhizaini pabepa kuita chinhu chakavimbika. Iwe haugone kungotenga izvi kubva pasherufu yegeneric; inoda kugadzirwa uye kugadzirwa sechikamu chehurongwa.
Sarudzo yealloy inoraira zvakananga hupenyu hwebasa. Kune bhailer feedwater application, kabhoni simbi muviri ine stainless trim (disc, hinge pini) inogona kukwana. Asi kune mutsara wekunzvenga muchirimwa chemakemikari unobata ma chlorides, urikutsanangura yakasimba simbi isina tsvina kana kunyange nickel-based alloy valve kudzivirira njodzi yekutadza kuparara. Hunhu hwekukanda pano haugone kutaurirana - chero porosity kana kuisirwa mumuganhu wekumanikidza inzvimbo yekudonha yeramangwana.
Types in the Wild: Beyond the Catalog
Catalog specs inokuudza saizi uye kudzvanywa chiyero. Ivo havawanzo kukuudza nezve dynamic performance. Tora chinyararire kana chitubu-chakabatsirwa chekuongorora valve. Yakakura yekudzivirira slam, handiti? Kazhinji, hongu. Asi ini ndakamboona hurongwa apo chiyero chechirimo chaive chakanyanya kukwirira kune musoro wepombi uripo, zvichikonzera kudonha kusingaperi uye kufa nenzara michina yakadzika. Isu taifanira kudhonza vharafu, kuyera chitubu, uye kuburitsa tsika ine yakaderera preload. Kaiva kadikidiki kane simba guru rekushanda.
Dual-plate wafer cheki inonakidza kuchengetedza nzvimbo uye huremu. Asi kana uri kutarisana nemvura inotakura zvinhu-senge slurry kana mvura yakasviba-iyo hinges uye diki diki rakatenderedza mahwendefa zvinogona kuvharika. Ndaizendamira pacheki yebhora kana kuti tilting-disc dhizaini mune idzodzo, kunyangwe iri hombe. Vashandi vekuchengetedza vachakutendai gare gare.
Zvadaro pane lift cheki valve. Yakavimbika kwazvo kune yakatwasuka kumusoro kuyerera. Asi iise yakatwasuka pasina kufunga kechipiri, uye wagadzira paperweight. Nhungamiro uye huremu hwe disc inoda simba rinokwevera zvinhu kuti rishande sezvakagadzirwa. Zvinonzwika sezviri pachena, asi ungashamisika kuti kakawanda sei kukanganisa kwekuisa kunoitika nekuda kwekuti mhando yevharuvhu haina kunzwisiswa pasi panguva yekuiswa.
Kubatanidzwa uye iyo System Mindset
A cheki vharafu hachisi chitsuwa. Kuita kwayo kwakasungirirwa kune pombi curve kumusoro kwerwizi uye system inoshanduka ichidzika pasi. Kutsanangura imwe kunoda kubvunza: Musoro wepombi wakavharwa chii? Ndeipi yakakura reverse flow velocity vharafu isati yanyatsovhara? Pane mukana wekukurumidza bhasikoro revhavha, izvo zvinogona kutungamirira kukupfeka nguva isati yasvika pachigaro?
Mumachining maapplication, seaya e hydraulic kana lubrication masisitimu, iyo cheki vharafu inowanzoda kubatanidzwa muvharovha yakawanda. Iyi haisiri vharafu yakamira; inzira yakagadzirwa nemichina ine poppet kana bhora nechitubu. Iko kurongeka kwemachina - iyo yekumusoro kupera kwechigaro, iyo dhayamita yakabhowa, iyo chitubu chegomba kudzika-inobata zvakanangana nekudonha kwemazinga uye nekupwanya kudzvanywa kwechokwadi. Iyi inzvimbo chaiyo yechikamu, pane chitoro CNC machining kugona uye hunyanzvi hwemetrology hwakakosha sekukanda mbishi.
Takanga tine purojekiti yetest stand inoda chaiyo chaiyo, yakaderera-cracking-pressure check valve. Iyo yekunze-pasherufu haikodzeri dhizaini yakawanda. Mhinduro yaive yekuita kuti muviri wevharuvhu uye chigaro zvigadziriswe zvakananga mubhuroko rakapetwa kubva pasimbi yakasimba yesimbi, ine chitubu chakakwenenzverwa uye bhora. Kushivirira kwaive mumamicrons. Yakashanda zvakakwana nekuti machinist akaibata sechinhu chakakosha chekudzora mvura, kwete chidimbu chesimbi chine gomba mairi.
Kukundikana Modes uye Real-World Diagnostics
Havakundiki nenyasha. Kazhinji, inodonhedza (chigaro chakundikana), slam (yakatadza kuvhara michina), kana kuvharika kwakazara (dhisiki rakanamira rakavhurika kana kuvharwa). Kuongororwa kunowanzotanga nekuteerera. Ruzha runorira pakuvharwa kwepombi kunononoka kuvharwa. Inogara ichikurukurirana, yakakwira-frequency chatter inogona kureva kuti vharafu iri kutenderera munzvimbo yakavhurika zvishoma nekuda kwekuyerera kusina kugadzikana.
Internal corrosion imhondi yakanyarara. Ndadimbura a cheki vharafu kubva pamutsetse wekutonhora wemvura yegungwa waitaridzika zvakanaka kunze. Mukati, pini yehinge yakanga yoda kuita ngura, uye dhisiki rakanga rakagochwa semwedzi. Iyo yainzi yainzi 316 isina tsvina, asi iyo yekukanda mhando kana iyo chaiyo giredhi yakashandiswa yaisasvika kune iyo chloride nharaunda. Ichi chikonzero nei kuteedzera uye zvinhu certs kubva kune wako mutengesi zvine basa. Kambani yakaita seQSY, nekutarisa kwavo kune alloys akakosha, ingave yekuenda kune yakaomarara nharaunda, ichipa zvinhu zvakaita se duplex stainless kana kunyange cobalt-based alloys yekupfeka zvakanyanya uye corrosion.
Kupfeka ndeimwe nyaya. Mune hurongwa hwehutsi, kunyange hushoma hwekudhirowa kwewaya (kuvhuvhuta kubva kune-high-velocity steam) pachigaro kunogona kukonzera kubuda. Kana yangotanga, inokurumidza. Dzimwe nguva, gadziriso haisi vharuvhu nyowani asi kugadzira patsva-zvichida kuenda kuvharuvhu yekutarisa yenozzle iyo inoshingirira kune iyo chaiyo mhando yekukukurwa.
Iyo Spec Sheet ndiyo Nzvimbo Yekutanga, Kwete Vhangeri
Pakupedzisira, izwi pane zvakatemwa. Iyo ANSI pressure class (semuenzaniso, Kirasi 150, 300) ndeyekumanikidza-ine muviri. Hapana chaanotaura pamusoro pekugona kwekuvhara mashandiro ekubata kuyerera kwevelocities kana cyclic kuneta. Iwe unofanirwa kutarisa kune data remugadziri kune yakanyanya kubvumidzwa velocity uye kushoma kudonhedza kudonha kuti uvhure zvizere. Idzi ndidzo nhamba dzinokupinza mubhora.
Usambofa wakafunga kuti Stainless simbi yakakwana. Taura giredhi: CF8M, Duplex 2205, Alloy 20. Musiyano mumutengo uye kuita wakakura. Kune tsika kana yakaderera-vhoriyamu application, apa ndipo pakakosha hurukuro yehunyanzvi nemumwe wako wekugadzira. Iwe unofanirwa kuendesa mamiriro esevhisi-mvura, tembiricha, kudzvanywa, kutenderera frequency-kuti vagone kuraira nezve yakanakisa nzira yekukanda (Investment casting kune yakaoma, yakanyatso-detail miviri; shell mold casting yezvimiro zvakakura zvezvimiro zvakaoma kunzwisisa) uye machining maitiro.
Mukupedzisira, kusarudza iyo chaiyo cheki vharuvhu chiitiko mune yakashandiswa sisitimu masisitimu uye zvigadzirwa sainzi. Zviri pamusoro pekufungidzira kuti zvichaita sei kwete mu test lab, asi mune ruzha, kuzunguza, kuchovha bhasikoro chaiko kwechirimwa chako. Chisarudzo chakanaka hachioneki-chinongoshanda kwemakore. Iyo yakaipa inozvizivisa pachayo, inodhura uye kazhinji inoshamisa.
