Ukufakwa kweevalvu zesango, iivalve zeglowubhu kunye neevalve zokujonga

Ivalve yesango, ekwaziwa ngokuba yivalve yesango, yivalve esebenzisa isango ukulawula ukuvulwa nokuvala. Ilungisa ukuhamba kwemibhobho kwaye ivule kwaye ivale iipayipi ngokutshintsha i-pipeline cross-section. Iivalvu zesango zisetyenziswa kakhulu kwimibhobho enemithombo yolwelo evuleke ngokupheleleyo okanye evalwe ngokupheleleyo. Ngokuqhelekileyo akukho mfuneko yolwalathiso lofakelo lwevalvu yesango, kodwa ayinakufakwa ijonge phezulu.

Aivalve yeglowubhusisivalo esebenzisa idiskhi yevalve ukulawula ukuvulwa nokuvala. Ngokutshintsha i-gap phakathi kwe-disc ye-valve kunye nesihlalo se-valve, oko kukuthi, ukutshintsha ubungakanani becandelo elinqamlezayo, ukuhamba okuphakathi okanye umjelo ophakathi unqunyulwe. Xa ufaka i-valve yokumisa, ingqwalasela kufuneka ihlawulwe kwicala lokuhamba kwamanzi.
Umgaqo omele ulandelwe xa ufaka i-valve yokumisa kukuba ulwelo olukumbhobho ludlula kumngxuma wevalve ukusuka ezantsi ukuya phezulu, ngokuqhelekileyo owaziwa ngokuba "uphantsi kwaye uphume phezulu", kwaye ukufakela umva akuvumelekanga.

Khangela ivalve, eyaziwa ngokuba yi-valve yokutshekisha kunye ne-valve yendlela enye, i-valve evula ngokuzenzekelayo kwaye ivale phantsi kwentlupheko yoxinzelelo phakathi kwangaphambili nasemva kwevalve. Umsebenzi wayo kukuvumela i-medium ukuba ihambe kwicala elinye kwaye ithintele i-medium ukuba ingabuyeli ngasemva kwelinye icala. Ngokwezakhiwo ezahlukeneyo, iivalvu zokutshekisha ziquka ukuphakamisa, ujingi kunye neevalvu zokujonga i-butterfly clamp. Iivalvu zokukhangela zokuphakamisa zihlulwe zibe ziindidi ezithe tye kunye nezithe nkqo. Xa ufaka i-valve yokutshekisha, kufuneka uphinde ubeke ingqalelo kwindlela yokuhamba kwendawo kwaye ungayifaki ngasemva.

Ukufakwa kwevalve yokunciphisa uxinzelelo

I-valve yokunciphisa uxinzelelo yi-valve eyanciphisa uxinzelelo lwe-inlet kwi-inlet yoxinzelelo olufunekayo ngokuhlengahlengiswa kwaye igcine ngokuzenzekelayo uxinzelelo oluzinzileyo ngokuxhomekeke kumandla ophakathi ngokwawo.

Ukususela kumbono we-fluid mechanics, ivalve yokunciphisa uxinzelelo yinto ephazamisayo enokutshintsha ukuxhathisa kwendawo. Okokuthi, ngokuguqula indawo yokutshiza, izinga lokuhamba kunye namandla e-kinetic olwelo lutshintshwa, ngaloo ndlela luvelisa ilahleko ezahlukeneyo zoxinzelelo, ngaloo ndlela kufezekiswa injongo yokunciphisa uxinzelelo. Emva koko, ukuxhomekeka ekuhlengahlengisweni kwenkqubo yokulawula kunye nokulawula, amandla entwasahlobo asetyenziselwa ukulungelelanisa ukuguquguquka koxinzelelo emva kwevalve, ukwenzela ukuba uxinzelelo olusemva kwevalve luhlale luhlala ngaphakathi kwinqanaba elithile lephutha.

Ukufakwa kwevalve yokunciphisa uxinzelelo

1. Iqela levalve yokunciphisa uxinzelelo olufakwe ngokuthe nkqo lufakwa ngokubanzi eludongeni kumphakamo ofanelekileyo ukusuka emhlabeni; iqela levalve yokunciphisa uxinzelelo olufakwe ngokuthe tye lufakwe ngokubanzi kwiqonga lokusebenza elisisigxina.

2. Sebenzisa intsimbi emile ukufakela eludongeni ngaphandle kweevalvu ezimbini zolawulo (ezidla ngokusetyenziswa kwizivalo zokumisa) ukwenza isibiyeli. Umbhobho we-bypass uphinde unamathele kwi-bracket kwaye ulinganiswe.

3. Ivalve yokunciphisa uxinzelelo kufuneka ifakwe ngokuthe tye kumbhobho othe tye kwaye kufuneka ingathotywa. Utolo olukumzimba wevalvu kufuneka lukhombe kwicala lokuhamba okuphakathi kwaye alukwazi ukufakwa ngasemva.

4. I-valve yokumisa kunye ne-high and low pressure gauges kufuneka ifakwe kumacala omabini ukujonga utshintsho loxinzelelo ngaphambi nangemva kwevalve. Ububanzi bombhobho emva kwevalve yokunciphisa uxinzelelo kufuneka ibe yi-2 # -3 # inkulu kunobubanzi bombhobho wokungena phambi kwevalve, kwaye umbhobho odlulayo kufuneka ufakwe ukwenza lula ukugcinwa.

5. Umbhobho wokulinganisa uxinzelelo we-valve yokunciphisa uxinzelelo lwe-diaphragm kufuneka uxhunywe kwipayipi yoxinzelelo oluphantsi. Imibhobho yoxinzelelo oluphantsi kufuneka ixhotyiswe ngeevalvu zokhuseleko ukuqinisekisa ukusebenza ngokukhuselekileyo kwenkqubo.

6. Xa isetyenziselwa ukuchithwa kwe-steam, umbhobho wokuhambisa amanzi kufuneka ufakwe. Kwiinkqubo zemibhobho ezineemfuno eziphezulu zokucoca, isihluzo kufuneka sifakwe phambi kwevalve yokunciphisa uxinzelelo.

7. Emva kokuba iqela le-valve yokunciphisa uxinzelelo lifakwe, i-valve yokunciphisa uxinzelelo kunye ne-valve yokukhusela kufuneka ihlolwe uxinzelelo, ihlanjululwe kwaye ilungiswe ngokweemfuno zokuyila, kwaye uhlengahlengiso kufuneka luphawulwe.

8. Xa ugungxula ivalve yokunciphisa uxinzelelo, vala ivalve yokunciphisa uxinzelelo kwaye uvule ivalve yokugungxula ukuze ugungxule.

Ukufakwa komgibe

Umsebenzi osisiseko we-steam trap kukukhupha amanzi adibeneyo, umoya kunye ne-carbon dioxide gas kwinkqubo ye-steam ngokukhawuleza; kwangaxeshanye, inokuthintela ngokuzenzekelayo ukuvuza komphunga ngowona mlinganiselo mkhulu. Kukho iintlobo ezininzi zemigibe, nganye inezakhono ezahlukeneyo.

Ngokwemigaqo yokusebenza eyahlukeneyo yezibatha zomphunga, zinokwahlulwa zibe zezi ntlobo zintathu zilandelayo:

I-Mechanical: Isebenza ngokotshintsho kwinqanaba le-condensate kumgibe, kuquka:

Uhlobo lokudada: Ibhola edadayo yingqukuva evalekileyo.

Uhlobo lwedada oluvuleleka phezulu: Idada elo limile okwebhere kwaye livuleka libheke phezulu.

Ukuvula uhlobo lwedada elijonge ezantsi: Indawo edadayo imile okwebhere kwaye imbobo ijonge ezantsi.

Uhlobo lwe-Thermostatic: lusebenza ngokotshintsho kubushushu bolwelo, kubandakanya:

Iphepha leBimetallic: Into enovakalelo lishiti lebimetallic.

Uhlobo loxinzelelo lomphunga: Into enovakalelo yimvunge okanye ikhatriji, ezaliswe lulwelo oluguquguqukayo.

Uhlobo lwe-Thermodynamic: Izenzo ezisekelwe kwiinguqu kwiimpawu ze-thermodynamic zolwelo.

Uhlobo lweDisc: Ngenxa yezinga lokuhamba kwamanzi ahlukeneyo kunye negesi phantsi koxinzelelo olufanayo, uxinzelelo oluhlukeneyo kunye noxinzelelo lwe-static lwenziwa ukuqhuba i-valve ye-disc ukuba ihambe.

Uhlobo lwe-Pulse: Xa i-condensate yamaqondo okushisa ahlukeneyo idlula kwiiplate ze-throttle orifice plates ze-pole-pole series, iintlobo ezahlukeneyo zoxinzelelo zenziwa phakathi kweepali ezimbini ze-throttle orifice plates, ukuqhuba i-valve disc ukuba ihambe.

Ukufakwa komgibe

1. Iivalve zokumisa (iivalve zokumisa) kufuneka zifakwe ngaphambili nangasemva, kwaye isihluzo kufuneka sifakwe phakathi komgibe kunye nevalve yokumisa ngaphambili ukukhusela ukungcola kumanzi e-condensate ekuvaleni umgibe.

2. Umbhobho wokuhlola kufuneka ufakwe phakathi komgibe kunye nevalve yokumisa yangasemva ukujonga ukuba umgibe usebenza ngokufanelekileyo. Ukuba ubuninzi be-steam buphuma xa uvula ityhubhu yokuhlola, umgibe wonakaliswe kwaye ufuna ukulungiswa.

3. Injongo yokumisela umbhobho we-bypass kukukhupha inani elikhulu lamanzi adibeneyo ngexesha lokuqalisa kunye nokunciphisa umthwalo wokukhupha umgibe.

4. Xa i-valve ye-drain isetyenziselwa ukususa i-condensate kwisixhobo sokufudumeza, kufuneka ifakwe kwindawo engezantsi yezixhobo zokufudumeza ukuze umbhobho wamanzi we-condensate ubuyele ngokuthe ngqo kwi-valve yokukhupha ukukhusela ukuqokelela kwamanzi kwisixhobo sokufudumala.

5. Indawo yokufakela kufuneka ibe kufuphi nendawo yokukhupha amanzi ngokusemandleni. Ukuba umgama ukude kakhulu, umoya okanye umphunga ungaqokelelana kumbhobho omde, obhityileyo phambi komgibe.

6. Xa umbhobho we-steam ongundoqo othe tyaba ude kakhulu, imiba yokuhambisa amanzi kufuneka ithathelwe ingqalelo.