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[ngwaahịa akọrọ] ike osisi isi valvụ mmezi DQW akụkụ nke rotary actuator ọdabara valvụ okwu.

[ngwaahịa akọrọ] ike osisi isi valvụ mmezi DQW akụkụ nke rotary actuator ọdabara valvụ okwu.

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valvụ nlele bụ valvụ eji egbochi nlọghachi nke mgbasa ozi na ọkpọkọ na akụrụngwa. A na-edobe valvụ nlele iyuzucha n'elu ọkpọkọ ọ bụla nke ikpo ọkụ dị n'èzí n'ime usoro mgbake uzuoku nke ikuku turbine set. Ọrụ ya bụ imechi efere valvụ na-akpaghị aka mgbe unit ahụ na-atụfu ibu, ka ọ ghara igbochi uzuoku dị n'akụkụ uzuoku nke onye na-ekpo ọkụ na ikuku inlet pipe na-adaghachi azụ n'ime turbine uzuoku ma mee ka turbine na-agba ọsọ ọsọ iji zere. ihe mberede.
Nlekọta nke isi valvụ
1. valvụ nlele mmịpụta
valvụ nlele bụ valvụ eji egbochi nlọghachi nke mgbasa ozi na ọkpọkọ na akụrụngwa. A na-edobe valvụ nlele iyuzucha n'elu ọkpọkọ ọ bụla nke ikpo ọkụ dị n'èzí n'ime usoro mgbake uzuoku nke ikuku turbine set. Ọrụ ya bụ imechi efere valvụ na-akpaghị aka mgbe unit ahụ na-atụfu ibu, ka ọ ghara igbochi uzuoku dị n'akụkụ uzuoku nke onye na-ekpo ọkụ na ikuku inlet pipe na-adaghachi azụ n'ime turbine uzuoku ma mee ka turbine na-agba ọsọ ọsọ iji zere. ihe mberede.
Ihe nleba anya nke iyuzucha nke 300MW dị mbubata bụ valvụ na-enyocha swing nke ikuku na-achịkwa, a na-egosipụta ihe owuwu ahụ na ọnụ ọgụgụ ahụ, a na-egosipụtakwa nhazi nke oche nchịkwa na-achịkwa na ọnụ ọgụgụ ahụ. Ọ na-abụkarị nke valvụ ahụ, efere valvụ, ogwe aka, aka uwe na ihe ndị ọzọ. Ihe mejupụtara oche njikwa ikuku bụ piston, ngọngọ cylinder, mkpanaka ọnụ ụzọ na mmiri.
Mwepụta valvụ na-adịghị alaghachi azụ na mmalite nke mechiri emechi, na ọkwa niile nke kpo oku na-amalite, mmịpụta na-anaghị alaghachi valvụ pneumatic njikwa ikuku, mkpanaka piston na-ebugharị ogwe aka rocker na-atụgharị, na-elele valvụ ogwe aka aka nke valvụ efere axis ókè. meghere, efere valvụ na steeti efu, site na mmịpụta uzuoku ume imeghe efere valve, steam site na valvụ n'ime ọkụ ọkụ.
N'oge a na-arụ ọrụ nkịtị nke unit ahụ, a na-edobe efere valvụ nlele n'ọnọdụ a na-emeghekarị n'ihi mmetụta nke nrụgide mmịpụta. Mgbe unit ahụ tụfuru ibu ahụ ka ọ kwụsị, mmịpụta uzuoku uzuoku na-agbada, efere valvụ na-adabere n'ịdị arọ nke ya ngwa ngwa laghachi n'oche ahụ, a ga-emechi valvụ ahụ, ka ọ ghara igbochi ikpo ọkụ na uzuoku na pipeline laghachi azụ. turbine uzuoku, iji nweta ọrụ nchebe
Ọrụ nkwadebe tupu emezigharị valvụ nlele mmịpụta nwere ihe ndị a:
Mgbe ngwaọrụ ahụ kwụsịrị ọrụ, a na-ebipụ ihe nchebe na ike na ikuku ikuku, ikuku ikuku na nkwonkwo ikuku nke oche ikuku ga-atọpụ, pins jikọtara ya na mkpanaka piston nke oche njikwa na nlele valve lever ga-adị. ewepụ ya, a ga-ewepụkwa oche nchịkwa mgbe ọ tọpụsịrị bolts na-edozi nke oche nchịkwa ma tinye ọnụ ọgụgụ. Mgbe ahụ, gaa n'ihu n'ọrụ a.
1, valvụ disintegration
(1) Nke mbụ, jiri akara akara akara nchikota n'etiti okpu na valvụ ahụ, wee hapụzie mkpuchi mkpuchi iji wepụ okpu ahụ.
(2) Wepu ihe nkedo, mgbanaka mmanụ na-ejigide mmanụ na lever n'akụkụ njikọ nke oghere lever na oche nchịkwa ikuku, ma tinye ha n'ọnọdụ a kapịrị ọnụ.
(3) Mepụta nnukwu mkpuchi mkpuchi mkpuchi ma wepụ nnukwu mgbanaka nrụgide.
(4) Mgbe emechara akara akara, tọpụ ihe mgbochi nke nkwado buru ibu, wepụ nnukwu nkwado ma tinye ya.
(5) Wepu ogwe aka lever na osisi, ma tinye ha.
(6) Wepu obere ihe nkwado na ngwa n'akụkụ ogwe aka rocker wee tinye ha.
(7) Mepee nut na-edozi ahụ na obere mgbanaka nrụgide, wepụ obere mgbanaka nrụgide ahụ, tinyekwa ọnụ.
(8) Mgbe ịmechara akara ahụ dabara adaba, tọpụ ihe nkedo na-edozi na mkpuchi flange, wepụ ihe mkpuchi flange, ma tinye ya.
(9) Wepu ogwe aka rocker na spool, tinye ha.
(10) Wepụ ogwe aka rocker na spool, tinye ha.
2, valvụ nhicha nyocha
(1) Lelee eriri valve na spool na valvụ ahụ. Ahịrị valvụ ekwesịghị inwe oghere, pores na akara nke transverse sealing elu nke na-emetụta arụmọrụ akara, ma kwesịrị ịdị na kọntaktị zuru oke na-enweghị nkwụsị. Ọ bụrụ na achọpụtara ntụpọ ndị na-emetụta arụmọrụ akara, ekwesịrị ịme ntụ ọka na ọgwụgwọ ndị ọzọ.
(2) Lelee njikọ dị n'etiti valvụ urukurubụba na ogwe aka rocker, gbanwee gasket na oghere ogwe aka rocker n'etiti 1 ~ 1.2mm, ekwesịghị ịbụ nnukwu ma ọ bụ obere, ma ọ bụghị ya, ekwesịrị ịhazi ya. Njikọ nut n'etiti valvụ nru ububa na ogwe aka rocker kwesịrị ịdị ike, nkwonkwo ịgbado ọkụ kwesịrị ịbụ nke zuru oke na ịgbawa n'efu, na ọdịiche dị n'etiti valvụ nru ububa na mgbanaka ogwe aka kwesịrị izute ihe ndị a chọrọ.
(3) Lelee nkwụsị n'etiti ogwe aka lever, rocker shaft na size bushing na nkedo ogwe aka kwesịrị izute ihe ndị a chọrọ, na elu nke ọ bụla ogwe na n'ime mgbidi elu nke bushing kwesịrị ire ụtọ na dị ọcha na-enweghị olulu.
(4) Lelee nkwakọ ngwaahịa na nnukwu mkpuchi mkpuchi na mkpuchi flange, kwesịrị ịbụ zuru oke, ma ọ bụrụ na enwere mmebi kwesịrị dochie ya.
(5) Lelee na mkpuchi mkpuchi nke mkpuchi valvụ na valvụ ahụ kwesịrị ịbụ nke zuru oke, na-enweghị oghere, tracholes na site na ncha nke na-emetụta mmetụta akara.
(6) Na-ehicha ma lelee elu mkpuchi na nkwonkwo nke nkwado, mkpuchi flange na ụlọ valvụ, na gasket ochie na-arapara n'elu akara akara kwesịrị ihicha ma shọvel pụọ. Elu mkpuchi ahụ agaghị enwe ntụpọ na-emetụta mmetụta akara.
(7) Ekwesịrị ịsacha igodo niile na ụzọ igodo yana jikọọ nke ọma.
3, mgbakọ valvụ
Tupu etinye valvụ ahụ, a ga-eji molybdenum disulfide ntụ ntụ mee ihe n'elu ala nke ọ bụla na ahịhịa ruo mgbe ọ na-egbuke egbuke. Ekwesịrị ịme mgbakọ ahụ dị ka akara mgbakọ na-esote n'usoro nkesa. Ekwesịrị itinye uche na isi ihe ndị a na usoro mgbakọ:
(1) Mgbe ejikọtara urukurubụba valvụ na ogwe aka rocker, a ga-edozi oke nke gasket na-agbanwe agbanwe iji hụ na nkuku nke ngbanwe nru ububa ruru n'akuku nke onye nrụpụta chọrọ. Mgbe nke ahụ gasịrị, a ga-ahụ ntụpọ na-agbatị ahụ nke ọma na valvụ urukurubụba.
(2) Mgbe a na-agbakọta ogwe aka lever, ogwe osisi rocker na rocker ogwe aka, ogwe aka lever na njedebe ogwe aka, na-edozi gasket nke ogwe aka ogwe aka na ogwe aka rocker kwesịrị inwe ọdịiche nke 1 ~ 1.20mm.
(3) Mgbe a na-etinye ihe mkpuchi rocker, lever shaft na nkwado na mkpuchi flange jikọtara ya na shei valvụ ma mechie ya, a ga-akwụ ụgwọ maka idobe axes abụọ ahụ concentric iji gbochie ngbanwe nru ububa valvụ na-atọhapụ ma ọ bụ rapaara.
(4) N'ime usoro ịkwakọba na nsọtụ abụọ ahụ, a ga-emerịrị ihe omume nke axis ọ bụla (lever shaft, rocker shaft) na-agbanwe agbanwe ma ghara ịrapagidesi ike.
(5) All gaskets kwesịrị imelite.
4, nkwụsị nke oche nchịkwa
(1) mkpuchi elu nke oche nchịkwa na ngọngọ cylinder, ihe mgbochi cylinder na isi bụ akara mgbakọ, wepụ ihe mkpuchi dị mkpirikpi na ntinye nke cylinder na isi, ma tinye ha.
(2) Kpochapụ mkpụrụ nke eriri abụọ ahụ ogologo ogologo oge n'otu oge ma ọ bụ iche iche, a ga-eme ya nwayọọ nwayọọ (nke ọzọ mgbe ọ na-atọpụ n'otu n'otu) ruo mgbe ọ ga-atọpụ, a ga-edozikwa bolts ma tinye ya.
(3) mkpuchi elu nke oche nchịkwa, ihe mgbochi cylinder na isi na-ekewapụ, a na-ewepụ piston, okporo ụzọ na mmiri mmiri, na-etinyekwa ọnọdụ ahụ.
(4) Wepu pin cotter na hexagonal groove nut, nke mere na mkpanaka piston na piston kewapụrụ, ebe edobere ya.
(5) Lelee ma hichaa oche njikwa.
1) Lelee na mgbidi dị n'ime nke piston cylinder kwesịrị ịdị nro.
2) Lelee mmiri mkpakọ cylindrical, ma dekọọ ogologo oge mmiri na steeti efu, ka e jiri ya tụnyere nhazi gara aga (mgbe) gasịrị.
3) Lelee mkpanaka piston na piston elu kwesịrị ịdị nro.
4) Lelee elu mkpuchi nke mkpuchi elu, ngọngọ cylinder na njikọ ntọala kwesịrị ịdị na-emebi emebi, ma kpochaa.
(6) Ntinye nke oche nchịkwa. Ekwesịrị ịme nrụnye na nchikota nke oche nchịkwa dị ka usoro ntụgharị nke nkwụsịtụ si dị, na isi ihe ndị a kwesịrị ilebara anya:
1) A na-eji ihe ọhụrụ dochie ihe mkpuchi O-mgbanaka ọ bụla, dochie roba na-eguzogide okpomọkụ, ụdị akara akara;
2) mgbidi dị n'ime nke cylinder ahụ na elu nke piston kwesịrị ka ejiri griiz silicone kpuchie ya iji hụ na mmanye;
3) Mgbe etinyere oche nchịkwa ikuku, a na-enyocha strok efu nke mkpanaka piston na ikuku abịakọrọ, nke kwesịrị izute ihe ndị na-emepụta ihe chọrọ, na ihe omume nke eriri piston kwesịrị ịdị na-agbanwe ma na-aga n'ihu na-enweghị ihe ọ bụla.
(7) nlele n'ozuzu ya. Idozi oche nchịkwa na valvụ ahụ, ma jikọọ na lever nke valvụ ahụ, jikọọ njikọ ikuku abịakọrọ, ma mee nyocha n'ozuzu ya. Ihe achọrọ:
1) Mgbe agbakọta na valvụ nlele mmịpụta, njem nke ngbanwe ikuku abịakọrọ kwesịrị ikwekọ na njem nke onye nrụpụta kwuru.
2) N'ime usoro mgbanwe, ihe omume niile kwesịrị ịdị na-agbanwe agbanwe, na-enweghị ihe ọ bụla rapaara.
3) Ekwesịrị ịlele akara mmeghe nke valvụ ahụ nke ọma, a ga-enyocha ngbanwe ihe na njikwa ọkụ. Ngosipụta na-emeghe na nke dị nso na-adabere na ọnọdụ n'ezie nke valvụ ahụ, na nkwenye ahụ agwụla.
Abụọ, valvụ ọnyà
1, mmeghe nke
Uzuoku turbine igbapu usoro bụ akụkụ dị mkpa nke uzuoku turbine thermal usoro, karịsịa, isi uzuoku na reheat uzuoku turbine ontology na elu mgbali valves, nye ọhụrụ uzuoku igbapu mgbapụta turbine na ụfọdụ ndị ọzọ dị mkpa igbapu valvụ, na unit ọkụ ọkpọkọ, nkịtị hydrophobic. ihe ndị a chọrọ n'oge kwesịrị ekwesị, na ọrụ nkịtị nke unit ahụ, iji bepụ valvụ ahụ ka ọ bụrụ nke a pụrụ ịdabere na ya, enweghị nkwụsị. Ọ bụrụ na ọnyà ndị a na-adapụta, mmetụta na arụmọrụ nke unit ahụ pụtara ìhè.
N'ihi nke a, iwebata 300MW uzuoku uzuoku unit nke ụfọdụ valvụ mmiri dị mkpa na-ebubata valvụ, nhazi nke ụdị njikwa gas na-arụ ọrụ nke valvụ na-ebipụ ọnọdụ abụọ. Globe valve nwere uru nke nhazi dị mfe, akara dị mma na nhazi. A na-eji valvụ ụwa nwee usoro nchịkwa pneumatic, nke na-eme ka valvụ ahụ na-arụ ọrụ ngwa ngwa ma na-anabata ya, ma nwee ike imezu ihe achọrọ nke akpaaka unit. Akụkụ njikwa pneumatic bụ ngwaahịa nke ụlọ ọrụ American VALTEK, na akụkụ ahụ valvụ bụ ngwaahịa nke ụlọ ọrụ American ONVAL. E gosipụtara usoro nke valvụ ahụ na ọnụ ọgụgụ ahụ, a na-egosipụtakwa usoro nke ngwaọrụ njikwa ikuku na ọnụ ọgụgụ ahụ.


Oge nzipu: Ọgọst-13-2022

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