Nokupakisha: Ukwakheka, izinhlobo, isicelo.

Packing nezindlala kuyinto uphawu ezivamile, esetshenziselwa uphawu kumadivayisi ahlukahlukene. Isimiso yokusebenza nokubeka elula: ngosizo yobunzima yakhe iyafezeka emalungeni izingxenye. asetshenziswa Seals hhayi kuphela izindlela ISIZINDA yeselula, kodwa ngokuphawulekayo static ukubekwa uphawu umsebenzi nge ukuvuvukala (isb, amapayipi).

Kuyini e

Indlala ukupakisha aluka sendikimba ngesimo yezinhlamvu kwesigaba unxande noma isikwele. Kuye ngokuthi izimo kwesicelo (ingcindezi, umthwalo ashukumisayo, izinga lokushisa) gasket wenza kusuka carbon fibre TRH, ngcono yokugcizelela izisekelo izindwangu kuzo zonke izinhlobo ngezintambo noma polytetrafluoroethylene (PTFE).

lapho kusetshenziswa

Packing ngoba izindlala esetshenziswa njengoba kushiwo ngenhla, i-uphawu:

• okungaguquki futhi ezithathekayo bamba piping;
• autoclaves;
• amaphampu;
• compressors;
• valve;
• labathaki bamafutha nezinye amayunithi.

Futhi emasimini umkhakha:

• ukukhiqizwa igesi;
• lamafutha;
• ukucutshungulwa;
• ukudla;
• zenuzi.

imvelo:

• lamafutha;
• umusi esishisa bhé;
• amanzi;
• amagesi (kuhlanganise liquified);
• izinto amakhemikhali nolaka;
• imikhiqizo kaphethiloli.

Izici

uphawu indlala ine izici ezilandelayo ezibalulekile:

• chemical ukumelana (inertness) nezimo ezahlukahlukene nolaka;
• ngesilinganiso esincane friction (ukunciphisa eziphathekayo ukwehla kwentengo izingxenye ezithathekayo izitshalo);
• Ukumelana ngemisebe;
• amandla;
• ubuqotho;
• ukufudumeza ukumelana;
• ukuphepha emvelweni;
• enyanya sokuguga (asihlehleli ngesikhathi ukugcinwa kanye nokusebenza);
• kuyaqina (sokuvuselela imishini ukusetshenziswa).

Yini izakhiwo ubenawo ukupakisha nezindlala

Imithetho abeke izidingo ezikhethekile ku wiring. Ezilapha abaluleke kakhulu.

1. Gasket kufanele kube ngasebenzi amakhemikhali. Okungenani, uhlelo impahla eluhlaza akufanele basabela phezu ukuxhumana detachable medium noma ukuguqula izinga kwayo okusemqoka. Ngokwesibonelo, uma nokupakisha indlala isetshenziselwa uphawu ukufakwa (ikholomu scrubber) lapho kukhona amagesi ezonakalisayo, futhi acid noma alikhali, base amafutha uphawu ukuba acid- futhi alikhali nemithi. Kuyefana nasendleleni uglevodorozham (uphethiloli, amafutha, greases). Ukuhlakazwa indlala kungaba ngokuqinisekile kuholele uphawu ukwehluleka, ingozi, ukulahlekelwa reagents nokunye.
2. I ukupakisha valve indlala kumele ukumelana okushisa aphakeme bese umfutho ophakeme. Ikakhulukazi le ziphuzo zazihluzwa amakholomu lamafutha ziphuzo zazihluzwa wenziwa ezingeni lokushisa eliphezulu. Ukuvuza kungaholela ukuwohloka of the ukwakheka imikhiqizo ziphuzo zazihluzwa, ukuvuvukala, ukukhululwa kwe Ukhuphula izinkungu ngaphandle ngisho ukuqhuma.
3. Uma lwezimpawu gasket asetshenziselwa ukuba aqondise Izingxube, kufanele ukumelana nokushintsha imithwalo. Ngokwesibonelo, i-uphawu izingxenye ezinyakazayo ukumpompa ukugxusha ibhokisi kufanele abe ukumelana ukungqubuzana kwemibono. Ngaphezu kwalokho, gasket kumele kube ukumelana nokuhuzuka. Ngenxa yale njongo, basuke kulekelelwa izinto ezahlukene, ezifana Teflon.

Akufanele singayinaki imithetho

Ngamunye unezindinganiso ayo ethize ukukhiqizwa, indlela engcono kakhulu yokusebenzisa futhi ufake lwezimpawu gasket. Zonke izinto ihlanganise lokho okufanele ukwenze esibaluleke kangaka njengoba ezokuphepha. Ukwahluleka okuthobela nanoma izimo ukufakwa (isimo, yobunzima abaxhumene, isibalo izindandatho gaskets) kanye nokusebenza kungaholela imiphumela olunzima. Futhi ngakho konke amaphuzu kufanele kubhekwe:

• Imithetho for isicelo;
• kukhethwa impahla;
• noshintsho schedule nokupakisha lwezimpawu;
• Ukufakwa ukuxhumana sealable namadivayisi.

izinhlobo packings

Njengoba laying, eqinisweni, yilokho ngentambo wenza izindwangu ahlukahlukene, umehluko ke iyoba nama kuphela cross-section, ukwakheka kanye nesakhiwo ukwelukwa. Esaziwa kakhulu ezifana izingoma packings:

• graphite;
• asbestos;
• PTFE;
• laying ka nezindwangu zokwenziwa;
• asbestos-DRM.

graphite nokupakisha

Ezenziwe ucwecwe nakakhulu. Izinzuzo zalezi gaskets wukuthi banayo ongaphakeme conductivity ezishisayo futhi Coefficient friction. Okumbi - abavumelekile ukuba isetshenziswe ezindaweni ne lokuhlala eliphezulu nitrogen, chloride futhi chromium compounds.

zinhlobo asbestos

Lokhu lwezimpawu nokupakisha wasebenzisa ezindaweni onakalisayo, njengoba ubhekana ne okushisa aphakeme kanye nezingcindezi. mshini wakhe: AC, AP, AIR, AGP. Lezi gaskets usebenze emafutheni, izinsimbi kanye umkhakha igesi, kanye embonini yezimoto.

PTFE

Nezimo futhi livikela yezimo nolaka. Imininingwane yalezi amaphakethe ngukutsi kungenzeka ingasetshenziswa ezindaweni lapho kukhona chlorine. Zisetshenziswa nezimboni zemithi, uwoyela zamakhemikhali.

Gaskets of intambo

seal okunjalo amelana nemihuzuko. Basuke yoniwe uginindela iphepha, zamakhemikhali amafutha umkhakha.

asbestos-free

Kungase kube izinhlobo ezahlukene: abanye babo kwagcizelela ngethusi wire, futhi abanye izithasiselo is afuthwe ngesibulali amafutha. Kuye ububanzi bokusebenzisa kohlobo oluthile kuyakhethwa.

Ngokusho isakhiwo nengaphakathi gasket ezahlukene cross-cutting, multi-ungqimba nasezakhini ungqimba aluka. Pump nokupakisha indlala kungaba ingxenye 3 kuya 50 mm, kuye ngokuthi injongo yawo.