Maindasitiri boilers anowanzoshandiswa mumagetsi emagetsi, indasitiri yemakemikari, mwenje indasitiri uye mamwe maindasitiri, uye anoshandiswa zvakanyanya muhupenyu hwemabhizinesi nemasangano. Kana iyo bhailer isingashandisi, huwandu hwemhepo huchayerera mukati meiyo boiler yemvura system. Kunyangwe iyo bhailer yakaburitsa mvura, pane firimu remvura pane yayo simbi pamusoro, uye okisijeni ichanyungudika mairi, zvichikonzera kuzara, izvo zvinotungamira mukukukurwa kweOkisijeni. Kana pane chiyero chemunyu pamusoro pesimbi yebhailer, iyo inogona kunyungudutswa mufirimu yemvura, kuora uku kuchave kwakanyanya. Kudzidzira kunoratidza kuti corrosion yakanyanya mumaboilers inonyanya kuumbwa panguva yekudzima uye inoramba ichikura panguva yekushandiswa. Naizvozvo, kutora kwakaringana matanho ekudzivirira panguva yekuvhara kwakakosha zvikuru kudzivirira kuomarara kwebhailer, kuve nechokwadi chekushanda kwakachengeteka, uye kuwedzera hupenyu hwesevhisi yebhailer.
Kune nzira dzakawanda dzekudzivirira bhailer shutdown corrosion, iyo inogona kukamurwa muzvikamu zviviri: yakaoma nzira uye nzira yekunyorova.
1. Dry nzira
1. Desiccant nzira
Desiccant teknolojia inoreva kuti mushure mokunge bhailer yamira, kana kutonhora kwemvura kunodonha kusvika 100 ~ 120 ° C, mvura yose ichabudiswa, uye kupisa kwemarara muchoto kuchashandiswa kuomesa pamusoro pesimbi; panguva imwecheteyo, chiyero chakakonzerwa muhari yemvura yemvura ichabviswa , mvura slag nezvimwe zvinhu zvinobudiswa. Desiccant inobva yaiswa jekiseni mubhailer kuti ichengetedze nzvimbo yayo yakaoma kuti isaora. Zvinowanzoshandiswa desiccants zvinosanganisira: CaCl2, CaO, uye silica gel.
Kuiswa kwe desiccant: Gurai mushonga muzvidimbu zveporcelain uye uzviise pamaboilers akasiyana. Panguva ino, mavharuvhu esoda nemvura anofanira kuvharwa kudzivirira kupinda kwemhepo yekunze.
Zvakaipa: Iyi nzira ndeye hygroscopic chete. Inofanira kuongororwa mushure mekuwedzera desiccant. Nguva dzose teerera kune deliquescence yemushonga. Kana deliquescence ikaitika, shandura iyo nenguva.
2. Kuomesa nzira
Iyi nzira ndeyekubvisa mvura kana kupisa kwemvura yebhailer kunodonha kusvika 100 ~ 120 ° C kana bhaira yakavharwa. Kana mvura yapera, shandisa kupisa kwakasara muchoto kuti udzike kana kuunza mweya unopisa muchoto kuti uome mukati meiyo bhailer.
Kukanganisa: Iyi nzira inokodzera chete kuchengetedzwa kwenguva pfupi kwema boilers panguva yekugadzirisa.
3. Hydrogen kuchaja nzira
Iyo nitrogen yekuchaja nzira ndeyekuchaja hydrogen mu boiler yemvura system uye kuchengetedza imwe yakanaka kudzvanywa kudzivirira mweya kupinda. Sezvo hydrogen isingaite uye isiri-corrosion, inogona kudzivirira kuvharika kwebhaira.
Nzira yacho ndeiyi:usati wavhara choto, batanidza pombi yekuzadza nitrogen. Kana kudzvinyirirwa muchoto kunodonha kusvika pa 0.5 geji, silinda yehydrogen inotanga kutumira nitrogen kune dhiramu yebhailer uye economizer kuburikidza nemapombi enguva pfupi. Zvinodiwa: (1) Nitrogen kuchena kunofanira kuva pamusoro pe99%. (2) Kana choto chisina chinhu chikazadzwa nenitrogen; iyo nitrogen pressure muchoto inofanira kuva pamusoro pe 0.5 gauge pressure. (3) Pakuzadza nenitrogen, mavharuvhu ese ari mupoto yemvura system anofanirwa kuvharwa uye anofanirwa kusimba kudzivirira kubuda. (4) Munguva yenitrogen yekuchaja yekudzivirira nguva, kudzvanywa kwehydrogen muhurongwa hwemvura uye kusimba kwebhailer kunofanirwa kugara kuchitariswa. Kana yakawandisa nitrogen kushandiswa kunowanikwa, kudonha kunofanirwa kuwanikwa uye kubviswa nekukurumidza.
Zvakaipa:Iwe unofanirwa kutarisisa zvakanyanya kumatambudziko ekudonha kwehydrogen, tarisa nguva zuva rega rega, uye kugadzirisa matambudziko nenguva. Iyi nzira inokodzera chete kuchengetedzwa kwema boilers ari kunze kwebasa kwenguva pfupi.
4. Amoniya nzira yekuzadza
Iyo nzira yekuzadza ammonia ndeyekuzadza huwandu hwese hwebhaira neammonia gasi mushure mekunge bhaira yavharwa uye mvura yaburitswa. Ammonia inonyunguduka mufirimu remvura pamusoro pesimbi, ichiita firimu rinodzivirira rinodzivirira pamusoro pesimbi. Ammonia inogonawo kuderedza kunyungudika kweokisijeni mufirimu remvura uye kudzivirira kuora neokisijeni yakanyungudika.
Zvakaipa: Paunenge uchishandisa nzira yekuzadza ammonia, zvikamu zvemhangura zvinofanirwa kubviswa kuchengetedza kudzvanywa kweammonia mubhailer.
5. Coating nzira
Mushure mekunge bhailer yapera basa, dhonza mvura, bvisa tsvina, uye omesa simbi. Zvadaro zvakafanana shandisa pende ye-anti-corrosion pendi pamusoro pesimbi kudzivirira kunze-kwe-service corrosion yebhailer. Anti-corrosion pendi inowanzo gadzirwa nehupfu dema uye injini yemafuta mune imwe chikamu. Pakuputira, zvinodikanwa kuti zvikamu zvese zvinogona kubatwa zvinofanirwa kuvharwa zvakaenzana.
Kukanganisa: Iyi nzira inoshanda uye yakakodzera yenguva refu yekuvhara kwevira rekuchengetedza; zvisinei, zvakaoma kushanda mukuita uye hazvisi nyore kupenda pamakona, welds, uye madziro epombi anowanzoita ngura, saka akakodzera chete kuchengetedzwa kwedzidziso.
2. Kunyorova nzira
1. Alkaline solution nzira:
Iyi nzira inoshandisa nzira yekuwedzera alkali kuzadza bhaira nemvura ine pH kukosha kwepamusoro pe 10. Gadzira firimu rinodzivirira rinodzivirira pamusoro pesimbi yesimbi kudzivirira okisijeni yakanyunguduka kubva pakuora simbi. Iyo alkali solution inoshandiswa ndiNaOH, Na3PO4 kana musanganiswa wezviviri.
Zvakaipa: Chengetedzo inofanirwa kutorwa kuchengetedza yunifomu alkali yekumisikidza mumhinduro, kazhinji kutarisa iyo boiler pH kukosha, uye teerera kuumbwa kwechiyero chakatorwa.
2. Sodium sulfite kudzivirira nzira
Sodium sulfite chinhu chinoderedza chinopindirana neokisijeni yakanyungudika mumvura kuita sodium sulfate. Izvi zvinodzivirira nzvimbo dzesimbi kubva pakuora neokisijeni yakanyungudika. Uye zvakare, nzira yekudzivirira yekusanganiswa mhinduro ye trisodium phosphate uye sodium nitrite inogona zvakare kushandiswa. Iyi nzira inobva pakuti iyi mvura yakavhenganiswa inogona kuumba firimu rinodzivirira pamusoro pesimbi yekudzivirira kudzivirira kuparara kwesimbi.
Zvakaipa: Paunenge uchishandisa iyi nzira yekudzivirira yakanyorova, mhinduro yacho inofanira kudonhedzwa zvakachena uye yakanyatsocheneswa isati yatanga seha yevira, uye mvura inofanira kuwedzerwa zvakare.
3. Kupisa nzira
Iyi nzira inoshandiswa kana nguva yekuvhara iri mukati memazuva gumi. Nzira yacho ndeyekuisa tangi remvura pamusoro pedhiramu rehutsi uye kuibatanidza kune dhiramu rehutsi nepombi. Mushure mekunge bhailer yadzimwa, inozadzwa nemvura ine deoxygenated, uye yakawanda yetangi yemvura inozadzwa nemvura. Iyo tangi yemvura inopisa nekunze kwemhepo, kuitira kuti mvura iri mumvura inogara ichichengetedza mamiriro ekuvira.
Zvakaipa: Kuipa kweiyi nzira ndeyekuti inoda chekunze chiutsi sosi kuti ipe steam.
4. Nzira yekudzivirira yekumisa (backup) kushandiswa kwemafirimu ekugadzira amines
Iyi nzira ndeyekuwedzera organic amine film-forming agents kune thermal system kana bhailer pressure uye tembiricha zvadonha kune akakodzera mamiriro panguva yekuvharwa kweyuniti. Iwo maajenti anotenderera neutsi nemvura, uye mamorekuru emumiririri akanyatsoshambadzirwa pamusoro pesimbi uye anotungamirwa zvakatevedzana. Kurongeka kunoumba molecular protective layer ine "shielding effect" kudzivirira kutama kwemhosva uye zvinhu zvinoparadza (oxygen, carbon dioxide, mwando) pamusoro pesimbi kuti uwane chinangwa chekudzivirira simbi corrosion.
Zvakaipa: Chinhu chikuru chemumiririri uyu ndeyepamusoro-kuchena mutsara alkanes uye vertical film-forming amines yakavakirwa pane octadecylamine. Zvichienzaniswa nemamwe maagent, zvinodhura uye zvinonetsa kupa.
Idzi nzira dzekugadzirisa dziri pamusoro dziri nyore kushanda mukushandiswa kwezuva nezuva uye dzinoshandiswa nemafekitori mazhinji nemabhizinesi. Zvisinei, mune chaiyo yekushanda maitiro, kusarudzwa kwemaitiro ekugadzirisa kwakasiyanawo zvakanyanya nekuda kwezvikonzero zvakasiyana uye nguva dzekuvhara choto. Mukushanda chaiko, kusarudzwa kwemaitiro ekugadzirisa kazhinji kunotevera mapoinzi anotevera:
1. Kana choto ichivharwa kwemwedzi inopfuura mitatu, nzira ye desiccant nenzira yakaoma inofanira kushandiswa.
2. Kana choto ichivharwa kwemwedzi 1-3, nzira ye alkali solution kana sodium nitrite nzira inogona kushandiswa.
3. Mushure mokunge bhailer inomira kushanda, kana inogona kutangwa mukati meawa makumi maviri nemana, nzira yekuchengetedza nzira inogona kushandiswa. Iyi nzira inogona zvakare kushandiswa kune ma boilers anoshanda nguva nenguva kana asiri kushanda mukati mevhiki. Asi dzvinyiriro muchoto inofanira kuva yakakwirira kudarika mhepo yemhepo. Kana kudzvinyirirwa kunowanikwa kudonha zvishoma, moto unofanirwa kutangwa kuti uwedzere kudzvinyirira munguva.
4. Apo bhailer inomiswa nekuda kwekugadzirisa, nzira yekuomesa inogona kushandiswa. Kana pasina chikonzero chekusunungura mvura, nzira yekuchengetedza nzira inogona kushandiswa. Kana iyo boiler mushure mekugadzirisa haigone kuiswa mukushanda nenguva. Matanho ekudzivirira anoenderana anofanirwa kutorwa zvinoenderana nehurefu hwenguva yechikwereti.
5. Paunenge uchishandisa kudzivirirwa kwemvura, zvakanakisisa kuchengetedza kutonhora muimba yebhairi pamusoro pe10 ° C uye kwete pasi pe0 ° C kuti urege kudzivirira kuparara kwechando kune michina.
Nguva yekutumira: Nov-13-2023
