Shigarwa, Aiki da Manual Kulawa–Bawul ɗin Bawul ɗin Wutar Lantarki sau uku

1. Girma

Ƙididdigar ta haɗa da Diamita na Al'ada NPS 10 ~ NPS48, Matsayin Matsakaicin Al'ada (150LB～300LB) flanged uku eccentric karfe hatimin malam buɗe ido.

2. Bayanin samfur

2.1 Bukatun fasaha

2.1.1 Tsarin ƙira da ƙira: API 609

2.1.2 Ƙarshe zuwa Ƙarshen haɗin haɗin gwiwa: ASME B16.5

2.1.3 Matsayin girman fuska da fuska: API609

2.1.4 Matsakaicin matakin zafin jiki: ASME B16.34

2.1.5 Dubawa da gwaji (ciki har da gwajin hydraulic): API 598

2.2Samfurin Gabaɗaya

Bawul ɗin bawul ɗin malam buɗe ido uku tare da rufe ƙarfe biyu shine ɗayan manyan samfuran BVMC, kuma ana amfani da su sosai a cikin ƙarfe, masana'antar haske, wutar lantarki, petrochemical, tashar gas da sauran filayen.

3. Halaye da Application

Tsarin yana da eccentric sau uku da ƙarfe. Yana da kyakkyawan aikin rufewa a ƙarƙashin yanayin zafin ɗaki da/ko babban zafin jiki. Karamin ƙarami, nauyi mai nauyi, buɗewa da rufewa cikin sassauƙa da tsawon rayuwar aiki sune fa'idodinsa a bayyane idan aka kwatanta da bawul ɗin ƙofar kofa na duniya. Ana amfani da shi sosai a cikin ƙarfe, masana'antar haske, wutar lantarki, petrochemical, tashar iskar gas da sauran filayen, yin amfani da amintaccen aminci, bawul ɗin shine mafi kyawun zaɓi na kamfanoni na zamani.

4.Tsarin

4.1 Sau uku eccentric karfe mai rufe bakin malam buɗe ido kamar yadda aka nuna a cikin Sketch 1

Hoto 1 Sau uku eccentric karfe rufe bawul ɗin malam buɗe ido

5. Ka'idar rufewa:

Hoto 2 Wani nau'in nau'in nau'in nau'in nau'in nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i na BVMC, kamar yadda aka nuna a zane 2.

(a)Halayen Tsari: Cibiyar jujjuyawar farantin malam buɗe ido (watau cibiyar bawul) ita ce ta samar da son zuciya A tare da rufe saman farantin malam buɗe ido, da son zuciya B tare da tsakiyar layin bawul ɗin. Da kuma wani kusurwa βbe da aka ƙirƙira tsakanin tsakiyar layin hatimin fuskar hatimi da jikin wurin zama (watau layin axial na jiki)

(b)Ka'idar rufewa: Dangane da bawul ɗin eccentric malam buɗe ido biyu, bawul ɗin malam buɗe ido uku ya haɓaka Angleβ tsakanin tsakiyar layin wurin zama da jiki. Tasirin son zuciya yana kamar yadda aka nuna a adadi na 3 giciye. Lokacin da sau uku eccentric sealing malam buɗe ido bawul yana cikin cikakken buɗaɗɗen matsayi, za a raba saman rufewar farantin malam buɗe ido gaba ɗaya daga saman bawul ɗin kujera. Kuma za a sami izini tsakanin farantin malam buɗe ido da fuskar rufewar jiki iri ɗaya da bawul ɗin bawul ɗin malam buɗe ido biyu. Kamar yadda aka nuna a cikin adadi na 4, saboda samuwar β angle, kusurwoyi 1 da β2 za su kasance tsakanin layin tangent na waƙar jujjuya diski da wurin rufe murfin bawul. Lokacin buɗewa da rufe fayafai, saman rufewar farantin malam buɗe ido sannu a hankali zai rabu kuma ya ɗan ɗanɗana, sa'an nan kuma ya kawar da lalacewa da lalata. Lokacin da buɗa bawul ɗin, wurin rufe diski zai rabu da sauri daga wurin zama. Kuma kawai a lokacin da aka rufe gabaɗaya, diski ɗin zai dunƙule cikin wurin zama. Kamar yadda aka nuna a cikin adadi4, saboda samuwar kusurwa β1 da β2, lokacin da aka rufe bawul ɗin malam buɗe ido, ana samar da matsin lamba ta hanyar bawul shaft drive torque ƙarni ba sassauci na kujerar malam buɗe ido ba. Ba zai iya kawai kawar da yiwuwar hatimi sakamako raguwa da gazawar lalacewa ta hanyar wurin zama kayan tsufa, sanyi kwarara, na roba invalidation dalilai, kuma za a iya da yardar kaina daidaita ta hanyar drive karfin juyi, sabõda haka, sau uku eccentric malam buɗe ido bawul sealing yi da kuma aiki rayuwa zai zama ƙwarai. inganta.

Hoto 2 Ƙarfe mai hawa biyu mai hatimin bawul ɗin malam buɗe ido

Hoto 3 Hoto na eccentric sau uku karfe mai rufe bawul ɗin malam buɗe ido a buɗaɗɗen yanayi

Hoto 4 Hoto na uku eccentric karfe biyu na rufe bawul ɗin malam buɗe ido a kusa

6.1Shigarwa

6.1.1 Bincika a hankali abubuwan da ke cikin sunan bawul kafin shigarwa, tabbatar da cewa nau'in, girman, kayan wurin zama da zafin jiki na bawul zai kasance daidai da sabis na bututun.

6.1.2 Bincika zai fi dacewa duk bolts a cikin haɗin gwiwa kafin shigarwa, tabbatar da cewa yana ƙarawa daidai. Da kuma duba ko matsawa da rufe kayan tattarawa.

6.1.3 Dubawa bawul tare da kwarara alamomi, kamar nuna shugabanci na kwarara,

Kuma shigar da bawul ɗin ya kamata ya kasance daidai da tanadi na kwarara.

6.1.4 Ya kamata a tsaftace bututun tare da cire mai, walda da sauran datti kafin shigarwa.

6.1.5 Yakamata a fitar da Valve a hankali, tare da hana jifa da faduwa.

6.1.6 Ya kamata mu cire murfin ƙura a ƙarshen bawul lokacin shigar da bawul.

6.1.7 A lokacin da installing da bawul, da kauri ga flange gasket ne fiye da 2 mm da shore taurin ne fiye da 70 PTFE ko winding gasket, flange na a haɗa kusoshi ya kamata a ƙara ja diagonally.

6.1.8 Ana iya haifar da sako-sako na tattarawa ta hanyar canjin rawar jiki da zafin jiki a cikin sufuri, da kuma ƙarfafa ƙwayar ƙwayar ƙwayar cuta idan akwai yabo a cikin suturar tushe bayan shigarwa.

6.1.9 Kafin shigar da bawul ɗin, dole ne a saita wurin mai kunnawa pneumatic, don yin aiki na wucin gadi da kiyayewa a ƙarƙashin m. Kuma dole ne a bincika kuma a gwada mai kunnawa kafin a saka shi cikin samarwa.

6.1.10 Binciken mai shigowa yakamata ya kasance daidai da ka'idodi masu dacewa. Idan hanyar ba ta yi daidai ba ko kuma mutum ne ya haifar da shi, Kamfanin BVMC ba zai ɗauki wani nauyi ba.

6.2Adana daMrashin lafiya 

6.2.1 Ƙarshen ya kamata a rufe shi da murfin ƙura a cikin busassun daki mai bushe da iska, don tabbatar da tsarkin kogin bawul.

6.2.2 Lokacin da aka sake yin amfani da bawul don ajiyar dogon lokaci, ya kamata a duba marufin ko ba shi da inganci kuma a cika mai mai mai a cikin sassan juyawa.

6.2.3 Dole ne a yi amfani da bawuloli da kiyaye su a cikin lokacin garanti (bisa ga kwangilar), gami da maye gurbin gasket, shiryawa da dai sauransu.

6.2.4 Yanayin aiki na bawul dole ne ya kasance mai tsabta, saboda zai iya tsawaita rayuwar sabis.

6.2.5 Valves suna buƙatar dubawa da kulawa akai-akai a cikin aiki don kariya daga juriya na lalata kuma tabbatar da cewa kayan aiki suna cikin yanayin lafiya.

Idan matsakaicin ruwa ne ko mai, ana ba da shawarar cewa a duba bawul kuma a kula da shi kowane wata uku. Kuma idan matsakaicin yana da lalata, ana ba da shawarar cewa duk bawul ko ɓangaren bawul ɗin ya kamata a duba kuma a kiyaye shi kowane wata.

6.2.6 Air tace taimako-matsa lamba bawul ya kamata magudana akai-akai, gurbatawa fitarwa, maye gurbin tace kashi. Tsaftace iska mai tsabta da bushewa don guje wa gurɓatattun abubuwan pneumatic, dalilin gazawar. (Ganin "mai kunnawa pneumaticaiki umarni")

6.2.7 Silinda, pneumatic aka gyara da bututu ya kamata a duba a hankali kuma akai-akai zuwaharamtazub da iskar gas (Ganin "mai kunnawa pneumaticaiki umarni")

6.2.8 Lokacin gyaran bawul ɗin zai sake zubar da sassan, cire jikin waje, tabo da tabo mai tsatsa. Don maye gurbin ɓatattun gaskets da shiryawa, ya kamata a gyara saman rufewa. Ya kamata a sake yin gwajin na'ura mai aiki da karfin ruwa bayan gyara, ƙwararrun na iya amfani da su.

6.2.9 Sashe na aiki na bawul (kamar kara da hatimin shiryawa) dole ne a kiyaye tsabta tare da share ƙura don kariya dagatashin hankalida lalata.

6.2.10 Idan akwai ɗigogi a cikin marufi kuma yakamata a ƙara ƙwanƙwasa ƙwayar ƙwayar cuta kai tsaye ko canza marufi gwargwadon halin da ake ciki. Amma Ba a yarda a canza marufi tare da matsa lamba ba.

6.2.11 Idan ba a warware matsalar bawul ɗin ba a kan layi ko don wasu matsalolin aiki, lokacin cire bawul ɗin ya zama daidai da matakan da ke gaba:

1. Kula da aminci: don amincin ku, cire bawul ɗin daga bututu ya kamata ya fara fahimtar menene matsakaici a cikin bututun. Ya kamata ku sa kayan aikin kariya na aiki don hana matsakaici a cikin lalata bututun. A lokaci guda don tabbatar da cewa bututun matsakaicin matsa lamba riga. Ya kamata a rufe bawul ɗin gabaɗaya kafin cire bawul ɗin.
2. Cire na'urar pneumatic (gami da hannun rigar haɗi, Ganin "mai kunna huhu.aiki umarni") ya kamata a mai da hankali don yin aiki don guje wa lalacewa daga tushe da na'urar huhu;
3. Ya kamata a duba zoben rufewa na diski da wurin zama idan suna da wani karce lokacin da bawul ɗin malam buɗe ido ya buɗe. Idan akwai ɗan goge-goge don wurin zama, zai iya amfani da zane mai ƙyalli ko mai a saman rufewa don gyarawa. Idan ƴan zurfafa zurfafa ya bayyana, yakamata a ɗauki matakan da suka dace don gyarawa, bawul ɗin malam buɗe ido na iya amfani da shi bayan cancantar gwaji.
4. Idan marufin kara ya zube ne, yakamata a cire gland din, sannan a duba karan da tattarawa da saman, idan kara yana da wani kato, sai bawul din ya taru bayan an gyara. idan shiryawa ya lalace, dole ne a maye gurbin kayan.
5. Idan Silinda yana da matsaloli, zai duba abubuwan da ke cikin pneumatic, tabbatar da cewa kwararar hanyar iskar gas da matsa lamba na iska, bawul ɗin juyawa na lantarki na al'ada ne. Ganin "mai kunna numfashin pneumaticaiki umarni")
6. Lokacin da iskar gas ya shiga cikin na'urar pneumatic, yana tabbatar da cewa silinda babu ciki da waje ba shi da yabo. Idan hatimin na'urar pneumatic ya lalace zai iya haifar da raguwar karfin karfin aiki, don kada ya hadu da buɗaɗɗen bawul da aikin rufewa, dole ne a kula da dubawa na yau da kullun da sassa daban-daban.

Bawul ɗin malam buɗe ido na pneumatic sauran sassa gabaɗaya baya gyarawa. Idan lalacewar ta yi tsanani, ya kamata a tuntuɓi masana'anta ko aika zuwa kula da masana'anta.

6.2.12 Gwaji

Bawul ɗin zai zama gwajin matsa lamba bayan bawul ɗin ya gyara gwajin daidai da ƙa'idodin da suka dace.

6.3 Umarnin aiki

6.3.1 Bawul ɗin da ke aiki da pneumatic tare da direban na'urar Silinda za a sanya diski ya juya 90 ° don buɗewa ko rufe bawul.

6.3.2 Hannun buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen bawul ɗin malam buɗe ido za a yi masa alama ta alamar matsayi akan na'urar pneumatic.

6.3.3 Butterfly bawul tare da tsattsauran ra'ayi da daidaita aikin za'a iya amfani dashi azaman canjin ruwa da sarrafa kwarara. Gabaɗaya ba a yarda da shi fiye da matsa lamba - yanayin iyakacin zafin jiki ko yawan matsa lamba da yanayin zafi

6.3.4 Butterfly bawul yana da ikon jure wa babban matsin lamba, kar a bar bawul ɗin malam buɗe ido a ƙarƙashin babban bambance-bambancen matsi har ma a babban matsin lamba ya ci gaba da kewayawa. In ba haka ba na iya haifar da lalacewa, ko ma babban haɗari na aminci da asarar dukiya.

6.3.5 Ana amfani da bawuloli na pneumatic akai-akai, kuma aikin motsi da yanayin lubrication ya kamata a duba akai-akai.

6.3.6 Na'urar pneumatic akan agogon agogo don rufe bawul ɗin malam buɗe ido, agogon agogo don buɗewa bawul ɗin malam buɗe ido.

6.3.7 Yin amfani da bawul ɗin malam buɗe ido na pneumatic dole ne a kula da iska mai tsabta, ƙarfin samar da iska shine 0.4 ~ 0.7 Mpa. Don ci gaba da buɗe hanyoyin iska, ba a ba da izinin toshe shigar iska da kwararar iska ba. Kafin yin aiki, yana buƙatar shiga cikin iska mai matsewa don lura idan motsi bawul ɗin malam buɗe ido na al'ada ne. kula da buɗaɗɗen bawul ɗin malam buɗe ido na pneumatic ko rufe, ko diski yana cikin buɗe ko rufe. Don kula da matsayi na bawul da matsayi na silinda ya dace.

6.3.8 Tsarin ƙwanƙwasa hannaye na pneumatic actuators shine kai rectangular, ana amfani dashi don na'urar hannu. Lokacin da hatsarin ya faru, zai iya cire bututun samar da iska kai tsaye tare da maƙarƙashiya wanda aikin hannu zai iya gane.

7. Kurakurai, dalilai da mafita (Duba Shafi na 1)

Tab 1 Matsaloli masu yiwuwa, haddasawa da mafita

Lura: Ma'aikatan kulawa za su sami ilimin da ya dace da gogewa.