Li-thermocouples tsa mocheso o phahameng li hlōleha-eseng lithapong tse fosahetseng, empa li tsoa ho li-tubes tsa tšireletso tse petsohileng, tse nang le mafome kapa tse sa tsamaeeng hantle. Re e bone ka har'a libopi tse futhumatsang leloala la tšepe moo lipotoloho tse 1200 ° C li senyang matsoho a alumina nakong ea likhoeli tse tšeletseng. Re nkile sebaka sa li-tubes tsa cobalt-alloy holim'a mefuta e mengata ea pompo e kantle ho naha ka mor'a hore metsi a leoatle a kene ka har'a metsi a leoatle a sothile sebopeho sa flange. Ho tšepahala ha 'nete lefatšeng ho qala nako e telele pele sensor e lekanngoa: e qala ka tube ea tšireletso.
Hobaneng "Thermocouple protection tube factory" e se feela lentsoe la ho batla-ke tlhaloso
Bareki ba bangata ba tšoara li-tubes tsa tšireletso e le lisebelisoa tse tloaelehileng. Ha ba joalo. Tupu e sebetsang ka ontong ea lab e hloleha ka mokhoa o makatsang ntlong ea pompo ea hydraulic piston e pepesehileng ho ts'oenyeha ha mocheso, ho thothomela le oli e nang le likaroloana tse ngata. Fektheri e nepahetseng ha e lahle feela kapa ea kenya mochine oa silinda. E etsa tšitiso-e tsitsitseng ka 1100 ° C, metallurgically e tsamaellanang le thermocouple sheath, 'me e ts'oaretsoe ka mochine ho hanela mokhathala ka har'a flange e ntseng e phahama.
Seo se hloka mekhoa e meraro e ke keng ea buisanoa: ea pele, bokhoni ba li-alloys tse phahameng tse kang AMS 5387 cobalt-chromium le li-superalloys tsa T800-grade-lisebelisuoa tse hanyetsanang le creep empa li batla taolo e nepahetseng ea phekolo ea mocheso; ea bobeli, kopanyo e otlolohileng ea ho lahla matsete * le * machining a CNC a li-multi-axis ho ts'oara mamello ea ± 0.02 mm holim'a libaka tsa bohlokoa tsa tiiso; ea boraro, traceability e feletseng ea thepa-ho tloha litlalehong tsa tlhahlobo ea leloala le tiisitsoeng ho ea ho thata-thata e khethehileng le ho netefatsa sebopeho sa lijo-thollo.
Mekhoa e mene ea ho hlōleha—le kamoo fektheri e tšoanelehang e thibelang e ’ngoe le e ’ngoe
Re lekola mefokolo ho pholletsa le lifeme tsa motlakase tsa Amerika Leboea le libaka tsa Asia Boroa-bochabela tsa petrochemical. Lisosa tse 'nè li atile:
- Ho petsoha ho fapaneng ha mocheso: Ha tube e atoloha ka potlako ho feta thermocouple sheath kapa mounting flange, microfractures e theha haufi le manonyeletso a weld. Tharollo: Alloy pairing e netefalitsoe ka coefficient-of-thermal-expansion (CTE) e bapisang - eseng feela ho latela maemo a mabitso.
- Khoholeho ea sefahleho: Phallo ea moferefere kapa slurry e hlabang e seha ka har'a ntlha ea tube, e pepesang mateano. Tharollo: Geometry e thata ea ntlha (mohlala, conical kapa hemispherical) e entsoeng ka mochini *ka mor'a* kalafo ea mocheso-eseng ho kenngoa.
- Ho senyeha ha tiiso: Gasket compression tahlehelo ka mocheso phahameng se tlohella hore sebetsa mecha ea litaba ho kenella. Tharollo: mahetla a tiisoang ka mokhoa o nepahetseng a nang le sefahleho sa holimo Ra ≤ 0.4 µm-e netefalitsoeng ke profilometry ea optical, eseng tlhahlobo ea pono.
- Ho hoholeha ha dimensional: Li-tubes lia lelefatsa kapa lia sothoana nakong ea tšebeletso ea nako e telele, li ntša thermocouple botebong ba eona bo lekantsoeng ba ho qoelisoa. Tharollo: annealing-relief annealing ka ASTM A967, e lateloa ke netefatso ea ka mor'a mocheso oa mocheso oa CMM ea ho otloloha le ho tsepamisa maikutlo.
Tsena ha se mathata a theory. Ke ka lebaka leo moreki a ileng a fetola bafani ba thepa ka mor'a hore lihlopha tse tharo tse latellanang tsa Inconel 600 li bonts'e seqha sa 0.15 mm ho 900 ° C - ho feta ASME B31.1 piping spec ka 300%.
Ke eng e arolang mofani oa thepa ho tloha fekthering ea thermocouple protection tube
Morekisi o tsamaisa li-tubes. Feme e fana ka tiisetso ea boemo ba sistimi. Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ho bolela hore tlhahlobo ea boenjiniere e qala ka setšoantšo sa hau sa GD&T-eseng PO ea hau. Re tšoaea likotsi esale pele: botenya ba lebota la 1.5 mm bo ka pholoha khatello e tsitsitseng, empa tlhahlobo ea mokhathala oa vibrational e bonts'a molumo oa 210 Hz kopanong ea hau ea pompo. Re sisinya moralo oa lebota la 2.0 mm o nang le mochini oa lehae bakeng sa ho boloka boima ba 'mele - o netefalitsoe ke FEA pele o sebelisoa.
Setsi sa bona se lumellanang le ISO se sebetsana le matlo a lehlabathe bakeng sa lisebelisoa tsa sebōpi tse bophara bo boholo le li-nozzles tse kenyang matsete bakeng sa ho lekola mosi oa turbine. Sehlopha se seng le se seng sa cobalt-nickel se etsa tlhahlobo ea spectrographic, tlhahlobo ea kutu ea intergranular ka ASTM A262 Practice E, le netefatso e tsitsitseng mocheso oa kamore le oa ts'ebeletso. Ha ho "thepa e netefalitsoeng" ntle le nalane ea mocheso e tlalehiloeng. Ha ho phallo ea dimensional ntle le ho latelloa ha CMM ho litekanyetso tsa NIST.
Ha ba boloke li-tubes "tse tloaelehileng". Ba boloka li-billet tsa AMS 5387, li-ingots tsa T800, le 316L tse sa hloekang - ebe mochine, cast, kapa hybrid-process e 'ngoe le e' ngoe ho latela litlhoko tsa ts'ebetso, eseng nomoro ea lethathamo.
Ho khetha molekane oa hau: lipotso tse pepesang bokhoni
Botsa tsena pele u kopa quote-'me u shebe hore na li araba ka botebo hakae:
- "Na u ka fana ka sekhahla sa ho atolosa mocheso bakeng sa tube ea hau ea AMS 5387 pakeng tsa 25 ° C le 1100 ° C - 'me u netefatse hore e lekantsoe ka lotho e tšoanang e sebelisoang tlhahisong?"
- "Re bontše litlaleho tsa hau tsa ho qetela tsa CMM bakeng sa 12 mm OD × 1.5 mm tube tube - haholo-holo ho kheloha ho pota-potileng bohareng ba bolelele le ntlha ea ho phalla."
- "U netefatsa joang botšepehi ba tiiso ka mor'a ho sebetsa ka mochine oa ho qetela? Teko ea khatello? Helium e lutla? E kenelletse ka har'a sefahleho se tiisitsoeng?"
- "Haeba ts'ebeliso ea rona e hloka hore ho be le mokhoa o ikhethileng qetellong ea ho kenya, na u e sebelisa ka mochini pele kapa ka mor'a mocheso - 'me ke bokae bo phahameng boo u ka bo finyellang karolong eo?"
Likarabo tse sa hlakang li bontša ho itšetleha ka matlo a batho ba bang kapa likheo tsa kantle ho sethala. E nepahetseng, likarabo tse tšehelitsoeng ke data li bolela hore u bua le fektheri ea tube ea tšireletso ea thermocouple.
Ho tšepahala ha hoa hahoa ka har'a sensor. E entsoe ka har'a tube-'me e fanoa ke balekane ba tšoarang millimeter e 'ngoe le e' ngoe ea botenya ba lebota, tekanyo e 'ngoe le e' ngoe ea tepi, moeli o mong le o mong oa lijo-thollo e le oa bohlokoa haholo. Ke seo bareki ba tloaelehileng ba se lebeletseng. Eo ke maemo a QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. e kopana-letsatsi le letsatsi, ho pholletsa le liketane tsa phepelo ea lefats'e, bakeng sa lits'ebetso moo ho hloleha e seng khetho.
