Ivalvu yokujonga ibhola

Ukubuyela umva kwepayipi yingxaki enkulu kwiinkqubo zepayipi. Xa ipompo iyeka, ulwelo lubuyela umva. Loo flow ibuyela umva ngequbuliso inokonakalisa iipompo, iimitha, kwaneepayipi eziqhumayo. Ivalvu yokujonga ibhola sisisombululo esilula nesithembekileyo kule ngxaki.

Ukuba ufuna ivalvu engabuyisiyo yokucoca amanzi, yokulinganisa amachiza, okanye yokunkcenkceshela, esi sikhokelo siya kukunceda uqonde kakuhle ukuba ivalvu yokujonga ibhola yenza ntoni kwaye ungakhetha echanekileyo.

Yintoni iIvalvu yokujonga ibhola?

Ivalvu yokujonga ibhola isebenzisa ibhola edadayo ukuze ivumele ukuhambahamba kwicala elinye kwaye iyivale kwicala elichaseneyo. Yicinge njengomnyango ohamba calanye. Xa ulwelo luhamba phambili, lutyhala ibhola esihlalweni sayo. Xa ukuhamba kuma okanye uzama ukubuya umva, ibhola iphoqeleka ukuba ibuyele esihlalweni, nto leyo eyenza ukuba itywinwe.

Eyona nto iphambili? Ibhola yeyona nto ishukumayo kuphela. Akukho zipringi, akukho zihinji, akukho zidiaphragms. Loo nto ilula yenza iivalvu zokujonga ibhola ziqine kakhulu.

Isebenza njani iValve yokujonga ibhola?

Kulula nje. Ngaphakathi komzimba wevalvu kukho ibhola – ngesiqhelo yintsimbi eqinileyo, intsimbi engagqwaliyo engenanto, okanye egqunywe ngerabha. Ibhola ihlala esihlalweni.

- Ukuhamba phambiliUxinzelelo lolwelo luphakamisa ibhola esihlalweni. Ibhola iyaqengqeleka ecaleni, kwaye ulwelo ludlula kwindawo ephakathi kwebhola nomzimba.

- Ukuhamba okubuyela umva: Uxinzelelo olungasemva lutyhala ibhola ukuba ibuyele esihlalweni. Okukhona i-reverse flow izama ngamandla, kokukhona ibhola iqina ngakumbi.

Ezinye iindlela zoyilo zisebenzisa iimbambo ezikhokelayo okanye igumbi elingaphakathi emzimbeni ukugcina ibhola iphakathi kwaye ihamba kakuhle.

Iingenelo eziphambili zeevalvu zokujonga ibhola

Xa kuthelekiswa neevalvu zokujonga iswing okanye iivalvu zokujonga ilifti, iivalvu zokujonga ibhola zibonelela ngeenzuzo ezininzi ezisebenzayo:

1. Ukuvalwa okugqwesileyo, ukuvuza okuncinci

Ibhola idibana nesihlalo ngomgca okanye ngesangqa esincinci. Xa zombini iindawo zigqityiwe kakuhle, ufumana ukuvuza okufutshane nokungabikho. Iivalvu zokujonga ukujika zihlala zivuza xa inkunkuma ibambeka phantsi kwediski - akukho ngxaki apha.

2. Iyanyamezela imidiya engcolileyo

Ibhola iyajikeleza kwaye iqengqeleka njengoko ulwelo luhamba. Eso senzo sokuqengqeleka sidla ngokuwisa amasuntswana amancinci. Kumanzi amdaka okanye amanzi ajikeleziweyo anezinye izinto eziqinileyo, iivalvu zokujonga ibhola zixolela kakhulu kunezinye iindlela ezininzi.

3. Ukwehla koxinzelelo oluphantsi

Xa ivuliwe ngokupheleleyo, ibhola ihlala ngaphandle kwendlela yokuhamba. Imbobo iphantse ibe nkulu ngokupheleleyo, ngoko ke ukulahleka koxinzelelo kuphantsi kakhulu kunakwiivalufa zokujonga ukuphakanyiswa.

4. Isebenza ngokuthe tye, nangokuthe nkqo (ngononophelo)

Ivalvu yokujonga ibhola ekhululekileyo ejikelezayo isetyenziswa kwimigca ethe tye. Kodwa kukho iinguqulelo ezincediswa yintwasahlobo zokuya phezulu ngokuthe nkqo. Okungakumbi ngaloo nto kamva.

5. Kulula kakhulu ukuyigcina

Susa isigqubuthelo, khupha ibhola, uyisule icocekile, uhlole isihlalo – yiyo loo nto. Umntu omnye angayenza ngemizuzu elishumi.

Izinto Eziqhelekileyo Nezinto Ezisetyenziswa Ngazo

Ukukhetha izinto ezifanelekileyo kwenza umahluko omkhulu. Nazi iindlela ezisetyenziswa kakhulu kwicandelo:

Ingcebiso yokwenyaniUkuba i-media yakho inezinto ezine-fibrous - njenge-pulp yephepha okanye ii-textile fibers - ibhola ingasongwa. Kwimeko enjalo, musa ukusebenzisa i-ball check check valve. Sebenzisa i-mese gate valve okanye i-duckbill check valve. Ii-ball check valves zisebenza kakuhle nge-granular okanye i-rolling solids.

Izicelo eziqhelekileyo (Apho Uza Kuzifumana Khona)

- Iinkqubo zokunyanga nokubonelela ngamanzi– Imigca yokukhupha amanzi ukuze kuthintelwe umonakalo kwisando samanzi.

- Ukunkcenkceshela kunye nezolimo– Iindawo zokumpompa amanzi. Iipali ezingabizi, eziqinileyo, nesanti aziyi kubabulala lula.

- Umthamo weekhemikhali– Ukulinganisa ukukhupha amanzi kwimpompo. Isebenza ngevalvu yoxinzelelo lwangasemva ukuthintela ukubuyela umva kwiitanki zeekhemikhali.

- Ukutya neziselo– Iinguqulelo zentsimbi engatyiwayo. Zifanelekile kwiintambo zokubuyisela i-CIP.

- Ulwandle kunye nolwandle– Imigca ye-Ballast, iinkqubo ze-bilge. Iyamelana nokugqwala kwamanzi olwandle.

- Unyango lwamanzi amdaka– Imigca yodaka evela kwii-clarifiers eziphambili, imigca yomoya ye-diffusers (sebenzisa ibhola egqunywe ngerabha).

Indlela yokukhetha iValve yokujonga ibhola echanekileyo - Imibuzo emihlanu

Ngaphambi kokuba uthenge, zibuze le mibuzo:

1. Ingaba imidiya ineenxalenye ezinkulu okanye imicu?

Iifayibha → Ziphephe iivalvu zokujonga ibhola. Amasuntswana aqinileyo (isanti, i-welding slag) → acolekile, kodwa faka i-Y-strainer ngasentla.

2. Ufakelo oluthe tye okanye oluthe nkqo?

Ithe tyaba → uhlobo oluqhelekileyo oluhamba ngokukhululekileyo. Ithe nkqo enokuhamba phezulu → udinga imodeli encediswa yintwasahlobo (abanye bayibiza ngokuba yivalvu yokujonga ibhola ethe nkqo).

3. Zithini iiqondo lobushushu kunye noxinzelelo?

Amanzi acocekileyo angaphantsi kwama-80°C (176°F) → umzimba wesinyithi otyhidiweyo onebhola egqunywe ngerabha. Ubushushu obuphezulu (ngaphezulu kwama-150°C / 302°F) → intsimbi epheleleyo engenasici enebhola egqunywe ngesinyithi.

4. Ukukhwela ibhayisekile rhoqo?

Ukuba ivalvu ivuleka ize ivale amaxesha amaninzi ngeyure, ibhola kunye nesihlalo ziya konakala ngokukhawuleza. Ukuba uqhuba ngesantya esiphezulu, cinga ngevalvu yokujonga engashukumiyo okanye ivalvu yokujonga enesipilingi.

5. Ubungakanani obunjani?

Iivalvu zokujonga ibhola zihlala zenziwe ukuya kuthi ga kwi-DN300 (12 intshi). Inkulu ngaphezu koko, ibhola iba nzima kakhulu ukuba ingatywinwa ngokuthembekileyo.

Ukufakela kunye noLondolozo – Musa ukwenza ezi mpazamo

Iingcebiso zokufaka

- Landela utolo oluhambayo– Iphoswa emzimbeni. Yifake ngasemva kwaye awunamsebenzi wokujonga konke konke.

- Umgca othe tye? Isigqubuthelo siya phezulu– Ibhola ifuna amandla angaphantsi komhlaba ukuze iwele kwakhona esihlalweni. Ukuba ubeka isigqubuthelo phantsi, ibhola iya kuwa isuke esihlalweni ize ivuze.

- Musa ukuyibopha ngqo kwindawo yokumpompa– Shiya umbhobho othe tye (ubuncinane ububanzi bemibhobho emi-5) phakathi kwepompo kunye nevalvu. Ukuxinana kwepompo kunokwenza ibhola itsibe kwaye iguge ngokukhawuleza.

- Uqhagamshelo olunemisonto– Xa usebenzisa iteyiphu yePTFE, musa ukuvumela ii-tape shreds zingene ngaphakathi. Ezo shreds zinokuyixina ibhola.

Ukugcinwa Kwemihla Ngemihla

Iivalvu zokujonga ibhola azinazo zonke iindlela zokulungisa. Kodwa qaphela ezi mpawu zokuba kukho into engalunganga:

- Isandi "esiqhumayo" esiqhubekayo emva kokuba ipompo iyekile

- Igeyiji yoxinzelelo esezantsi iyehla kancinci kancinci

- Isandi esinesingqisho sentsimbi esingqongqozayo

Indlela yokuhlola nokucoca:

1. Nciphisa uxinzelelo kwaye ukhuphe amanzi emgceni.

2. Susa iibholithi zesigqubuthelo. Khupha ibhola kunye nesitywini sesihlalo.

3. Jonga umphezulu webhola ukuba akukho mingxunya, imikrwelo, okanye ukuguguleka okungalinganiyo.

4. Hlola umphezulu wokutywina isihlalo ukuze ubone ukuba akukho mijelo.

5. Coca yonke into. Ubunzima obuncinci besihlalo bunganxitywa. Xa unzima, tshintsha isihlalo kunye nebhola.

6. Inqaku malunga neevalvu ezingabizi kakhulu: ezininzi zisebenzisa iibhola zentsimbi engenasici ezingenanto. Ekuhambeni kwexesha, zinokubola ngaphakathi kwayeSebenzisa iibhola eziqinileyo okanye iibhola ezigqunywe ngerabha ngokupheleleyo xa kunokwenzeka.

Imibuzo Ebuzwa Rhoqo (Imibuzo Ebuzwa Rhoqo)

Q: Ngaba ivalvu yokujonga ibhola ingafakwa ngokuthe nkqo?

A: Uhlobo oluqhelekileyo lokudada olukhululekileyo lusetyenziswa kuphela kwimigca ethe tye. Kwimigca ethe nkqo enokuhamba phezulu, kufuneka usebenzise ivalvu yokujonga ibhola ethe nkqo encediswa yintwasahlobo. Ngaphandle koko, ibhola iya kuwela nje esihlalweni ingaze ivuleke.

Q: Ingaba iyakuthintela ukutsalwa kwamanzi?

A: Hayi. Ivalvu yokujonga ibhola ivala ngokukhawuleza, nto leyo enokwenza isando samanzi esincinci. Ukuba unepayipi ende enesantya esiphezulu sokuhamba kwamanzi, cinga ngevalvu yokujonga evala kancinci okanye ufake isixhobo sokuthintela isando samanzi.

Q: Ibhola egqunywe ngerabha xa ithelekiswa nebhola yentsimbi engatyiwayo – yeyiphi engcono?

A: Kuxhomekeke kulwelo. Amanzi acocekileyo okanye indle → ibhola egqunywe ngerabha inika ukuvalwa okungcono kwaye ixabisa kancinci. Ubushushu obuphezulu, iioyile, okanye iikhemikhali → intsimbi engagqwaliyo epheleleyo. Ungaze usebenzise iibhola ezigqunywe ngerabha ezinezinyibilikisi okanye umphunga oshushu.

Q: Kutheni ivalvu yam yokujonga ibhola ivuza emva kweenyanga ezintandathu kuphela?

A: Kusenokwenzeka ukuba ukukhukuliseka okuvela kumasuntswana aqinileyo kwi-media - isanti, umhlwa, okanye isikali. Ibhola kunye nesihlalo ziyaguga. Isisombululo: faka isihluzo phezulu, okanye utshintshele kwisixhobo sesihlalo esiqinileyo (i-stellite okanye i-ceramic).

Q: Ingakanani ingcinezelo encinci yokuqhekeka?

A: Kwivalvu yokuhlola ibhola edadayo ngokukhululekileyo, idla ngokuba yi-0.005 – 0.03 MPa (malunga ne-0.05 – 0.3 bar). Oko kumalunga ne-0.5 ukuya kwi-3 yeemitha zekholamu yamanzi. Kwiinkqubo zokuhamba komxhuzulane, kulula ukukufezekisa oko.

Ivalvu yokujonga ibhola ayiyonto iphambili. Kodwa inokuthenjwa, iyafikeleleka, kwaye kulula ukuyilungisa. Yiyo loo nto uninzi lweenjineli luyikhetha ngenxa yamanzi acocekileyo, amanzi amdaka, kunye neenkonzo zeekhemikhali ezithambileyo. Fumana izinto ezintathu ezilungileyo - uhlobo lwemidiya (akukho micu), ulwalathiso lokufakelwa, kunye nokuhambelana kwezinto - kwaye ivalvu yokujonga ibhola iya kuhlala iminyaka emihlanu ukuya kwelishumi ngokulula.

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Ukuba unesicelo esithile (ubungakanani, ulwelo, ubushushu, uxinzelelo) kwaye awuqinisekanga ukuba ivalvu yokujonga ibhola yeyona ifanelekileyo na, chaza imeko yombhobho wakho.unxibelelwanoamasebe ethu oBugcisa kunye nokuThengisa.

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