Ƙa'idar Hatimi na Axially Split Case Pump Packing
Ka'idar hatimi na tattarawa ya dogara ne akan tasirin labyrinth da tasirin ɗauka.
Tasirin Maze: Ƙaƙƙarfan ƙananan farfajiya na shaft ɗin ba daidai ba ne, kuma yana iya jujjuya shi kawai tare da shiryawa, amma baya cikin hulɗa da wasu sassa. Saboda haka, akwai ɗan ƙaramin tazara tsakanin marufi da sandar, kamar maze, kuma matsakaicin matsa lamba yana cikin rata. Ana murɗa shi sau da yawa don cimma tasirin rufewa.
Tasirin Haɓakawa: Za a sami fim ɗin ruwa na bakin ciki tsakanin marufi da shaft, wanda ke sa tattarawa da shaft ɗin ya yi kama da ɗigon zamewa kuma yana taka wani tasirin sa mai, don haka guje wa wuce gona da iri na marufi da shaft.
Abubuwan buƙatun buƙatun buƙatun: Saboda zafin jiki, matsa lamba, da PH na matsakaicin shãfe haske, kazalika da saurin madaidaiciya, ƙarancin ƙasa, coaxiality, radial runout, eccentricity da sauran dalilai na axially. tsaga harka famfo, ana buƙatar kayan tattarawa don samun halaye masu zuwa:
1. Yana da wani mataki na elasticity da filastik
2. Kwancen sinadarai
3. Rashin cikawa
4. Man shafawa da kai
5. Juriya na zafin jiki
6. Sauƙi don haɗawa da tarawa
7. Mai sauƙi don ƙira da ƙananan farashi.
Abubuwan abubuwan da ke sama suna shafar aikin rufewa kai tsaye da rayuwar sabis na marufi, kuma akwai ƴan kayan da za su iya cika duk abubuwan da ke sama. Sabili da haka, samun ingantaccen kayan rufewa da inganta kayansu koyaushe shine abin da aka fi mayar da hankali kan bincike a fagen rufewa.
Rarraba, abun da ke ciki da aikace-aikacen tattarawa don axially tsaga yanayin farashinsa .
Saboda yanayin aiki daban-daban, akwai nau'ikan kayan tattarawa da yawa. Don mafi kyawun bambancewa da zaɓin tattarawa, yawanci muna rarraba tattarawa bisa ga kayan babban abin rufe marufi:
1. Halitta fiber shiryawa. Halitta fiber shiryawa yafi hada da na halitta auduga, lilin, ulu, da dai sauransu a matsayin sealing tushe kayan.
2. Ma'adinan fiber packing. Ma'adinan fiber na ma'adinai ya haɗa da tattarawar asbestos, da sauransu.
3. roba fiber shiryawa. Roba fiber shiryawa yafi hada da: graphite shiryawa, carbon fiber shiryawa, PTFE shiryawa, Kevlar shiryawa, acrylic-clip silicone fiber shiryawa, da dai sauransu.
4. Takardun yumbu da ƙarfe na fiber na yumbu da ƙarfe na ƙarfe galibi sun haɗa da: shirya kayan kwalliyar siliki, fakitin boron carbide, shirya fiber na matsakaici-alkali, da sauransu. Tun da fiber guda ɗaya yana da ƙari ko ƙasa da wasu kayan da kansu. Ana amfani da fiber don saƙa kayan tattarawa. Tun da akwai tazara tsakanin zaruruwan marufi, yana da sauƙin haifar da zubewa. A lokaci guda kuma, wasu zaruruwa suna da ƙarancin lubricating da kansu da kuma babban juzu'i, don haka suna buƙatar a yi musu ciki da wasu kayan shafawa da filaye. da kuma na musamman Additives, da dai sauransu Don inganta yawa da lubricity na filler, kamar: ma'adinai mai ko molybdenum disulfide man shafawa gauraye da graphite foda, talc foda, mica, glycerin, kayan lambu mai, da dai sauransu, da kuma impregnated polytetrafluoroethylene watsawa emulsion, da kuma a Ƙara daidai adadin surfactants da dispersants zuwa emulsion. Abubuwan ƙari na musamman yawanci sun haɗa da ɓangarori na zinc, masu hana shinge, masu hana lalata na tushen molybdenum, da sauransu don rage lalata kayan aikin da ke haifar da abubuwan cikawa.