Izinqubo zokusetshenziswa kwesivulela se-flange gate valve ekulawuleni kwesistimu sokuqeqesha

Izinkinga zokusetshenziswa kwesivinini se-flange gate valve ekulawuleni kwesistimu sokuqala sokupheka.

Izindlela zokubamba zokubamba zikwenzeka ukuthi izinto zibe nokukhula okuhle kwezinkanyezi. Ukusebenza kwesistimu yokwenza, ngenxa yezifo zokubamba zokubamba ezikwenzeka ngenxa yezindlela ezithile zokuthutha kusuka ekukhishweni okanye ekupheleni kwezinye izisebenzisi zikwazi ukuphazamisa okuphezulu okanye ukuphazamisa okanye izinyathelo ezinzima, ukusebenzisa izinkomba zokubamba ukuqinisekisa, ukuze kube nokwenzeka kwezimo zokubamba okudizayiniwe, ukuqinisekisa ukulungiswa kwesistimu yokwenza.

0 Introduction Ukuqala

Ukunqamula kwamanzi kwe-Hydraulic kuyinto eyenza kube nokuthuthukiswa kwesikhathi sokuphatha kwamanzi. Ngenxa yezinhlobo zokwenza isimo esihle kwezindlu zokuhlala, ukuphathwa kwamanzi okusezingeni eliphezulu kwezindawo zasemakhaya kuyinto okwenza kube kwezokuphathwa kwamanzi kwamakhulu kanye nokulondoloza. Eminyakeni edlule, ukuthuthukiswa kwezindawo zokuhlala kwezindlu kuyinto ekhula kakhulu, kufikisa ekwakheni kwamakhulu amakhilomitha kwamakhilomitha amakhulu akwenzeka. Kodwa futhi, kuyinto ekwenza kube nokunqamula kwamanzi kanye nezinye izinto ezikhohlwa zokuthi kube nokuthuthukiswa okuphambene. Kusukela ekuthuthukiseni kwepolisi yokwenza kube nokuthuthukiswa kwamanzi kwamanzi okusezingeni eliphezulu, ubunzima bokuphatha kwamanzi kubantu kuyinto ekwenza kube nokuthuthukiswa kwamanzi okusezingeni eliphezulu kanye nokwenza kube nokuthuthukiswa kwamanzi, ngakho-ke ukuphatha kwamanzi kwezindlu kanye nokuphathwa kufanele kube nokucacile.

1. Izinga lokusebenza kwesistimu yokupheka.

Izindlela zokuphatha zokuphatha zihambisa ukuphatha kwesistimu sepipe, ukuvula nokuphambene kwesistimu. Ukuphambana kwamandla kuhlanganisa ukugcwalisa okusezingeni eliphezulu kwezinye izinhlobo zokuphatha. Isistimu sokuwasha amanzi, amanzi kuyindlela yokuphambana yemithombo yomoya, ukugcwalisa okusezingeni kwezinye izinhlobo kuyisisekelo somphumela wokuphambana kwamandla. Ukucacisa izimo zezokuphatha kuyisicelo somphumela wokuphambana kwezinye izinhlobo ezithile zokuphatha ezithandwayo kanye nezimo ezikhona zokuphatha ezithandwayo kanye nezidingo zokuphatha ezithandwayo ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, ezithandwayo, 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Isistimu yokwenza ukupheka yezemvelo yomoya kuyinto indlela enhlekelelwe. Izici eziningi zikhona: okokuqala. 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3 ivalivi yokulungiswa okuyinhloko kwezindawo zokugcina zomoya zomphakathi kuqondisa ngokwezokwelapha ku isiZulu

Kwesokudala kwezindaba yomlomo wokuphansi kwezindlu, ukufaka i-throttle orifice noma ukufaka izitshudulu, izitshudulu, noma izinto ezinjalo, ukulawula isistimu sokuphansi nokulawula isikhala, ukuthatha isikhala esisizeni sokusetshenziswa kwesistimu. Kodwa, isibonelo kuyinto ukuthi isaphulela i-aperture ye-throttling orifice plate ikalakhiwe ngokwesetshenziswa kwesetshenziswa, uma isimo somoya siphela, kudinga ukulungisa futhi ukuvikeleka i-throttling orifice plate. Ngaphezu kwalokho, i-aperture ye-throttling orifice plate iyakhula kakhulu futhi iyathinteka ngokucace.

Njengoba, izivalo zegeti, izivalo zeglobu zinamandla amancane ekwenzeni ukuphatha, kuhamba kahle kuphela njengesivalo.

Ngaphandle kokuthuthukiswa kwemithetho yokukhokha ekhaya, uma kukhona okusetshenziswayo kwi-valve ye-system yomsebenzi okwenziwe, ngenxa yezindlela zokuhamba okwengeziwe kanye nezindlela ezithintekile zokuhamba, kuzoba nokuthuthukiswa kwemithetho yokukhokha ekhaya okwenziwe, kufanele kube nokulungiswa kwangaphandle okwenziwe, ukuphila okungasebenzi, ukuphathwa okubi.

Kwesokudala, izinkomba zokuhamba zomlomo zokufaka izinkomba zokulungisa, izinkomba zokuhamba ngokwenzelwa okwenzelwe, kanye nezinkomba zokuhamba ngokwenzelwa zokuphambene, njll., kuyisikhathi esiningi, ukusebenza kwakhe okuphezulu, ukulula nokunamathela. Ukusebenza kwakwamanye amazwe eminyakeni edlule, kwenza okuhle. Izinkomba zokulungisa, izinkomba zokuhamba ngokwenzelwa kanye nezinkomba zokuhamba ngokwenzelwa zokuphambene zingabonakala kwiqembu lezinkomba zokuphambene. Isakhiwo esikhulu lesithuthukiso kwezinto ezilungiswayo kulezi zinto zokulungisa kuyisakhiwo sevalvu, isigqibo sokulungisa kuyisukela ekwenzeni isipoli isitroki ukuze kwenze isitroki esiphambene kanye nevalvu, ukuze kulungiselele ukuvula isitroki ngaphakathi kwevalvu, ukushintsha isitroki ngaphakathi kwevalvu, uma kukhona isixazululo esingaphansi kwesiphakamiso, ukwenza okuphelele ukulungisa okwenzayo kwezifiso ukuze kwenze okuphelele ukulungisa nokuphambene kwesitroki. Isinkomba sokulungisa isetshenziswa ekulungiseni isivulekile, ukusebenza kwakhe sokuvula akushintshisi ngesikhathi sokuhamba kwesitroki; isinkomba sokuhamba ngokwenzelwa isetshenziswa ekulungiseni isikhathi sokuhamba ngokwenzelwa ngaphakathi kwakhe, ukusebenza kwakhe sokuvula kushintsha ngezikhathi zokuhamba, ukuze isikhathi sokuhamba ngokwenzelwa sikwazi ukulungisa okuphelele; isinkomba sokuhamba ngokwenzelwa yokuphambene isetshenziswa ekulungiseni isikhathi sokuphambene phakathi kwamaphepha amabili okuphambene esetshenziswe ekulungiseni isikhathi sokuvula ngesikhathi sokuphambene kushintsha, kungakwenza izinkomba ezimbili zokuphambene zokuphambene zishintshise ngokuphelele. Ngesikhathi sokusebenza, isikhathi sokuvula sikwazi ukushintsha ngokuphelele ngesikhathi sokushintsha kwesikhathi sokuphambene, okungakwenza isikhathi sokuphambene phakathi kwamaphepha amabili kube kuhamba kahle. Ukulinganisa neplathi yezinkomba ezilungiswayo kanye nezinto ezilungiswayo ezinye, isinkomba sokulungisa inezimo zokuhamba ezimbalwa, okuyisimo, ngesimo sokuphambene phakathi kwesitroki phambi kanye nokuvula kwakhe kwakwenzelwe ngokuphelele; isici sokuvula esihle; isici sokuvula esihle, abantu abangabathengi abangakwazi ukushintsha isikhathi; isakhiwo sevalvu sinamahole amaphepha amabili kanye nezinhlelo zokukhiqiza ezintsha ngesikhathi esihlalweni, ungakwazi ukubonisa kahle isikhathi phambi kwevalvu futhi emva kwevalvu kanye nokuhamba.

3.3 Heating system operation regulation, the centralized regulation of the system flow does not change, because the system flow does not change, the differential pressure of the pipe network will not change, and thus the balance valve, self-operated flow control valve, self-operated differential pressure control valve openings do not change the distribution of the flow of the network also does not change, so can be selected. But to choose the flow control valve or balance valve first, such as the amount of regulation should be used to balance the valve. For the user to change the flow of autonomous regulation, because of its indoor system more than a common riser of the two-pipe system. Therefore, if the common riser inlet balancing valve, relying on the user temperature control valve multiple actions, can achieve different users of the room temperature requirements, and thus the balance valve can be selected. If the common riser inlet installed self-operated differential pressure control valve, can make the common riser differential pressure to remain unchanged, is conducive to the temperature control valve to control the flow of radiator regulation, so the selection of self-operated differential pressure control valve has the best results. As the user's independent adjustment, the pipe network flow is also changed, so the pipe network branches are also suitable for the installation of self-operated differential pressure control valve.

Izingxenye ezinhle zokusetshenziswa kwezinkomba zebhulonzi ezimbili.

Indawo yokwenza ukunikeza okuphelele kwezindlu yokuhlala okwenziwe ngokusebenzisa i-valve ye-balance, emva kokuthatha izinsuku zokuhlala eziningi, iziphethu zivela ukuthi ukufaka i-valve ye-balance kungaba yinto enhle yokwenza kube khona okuhambisana kwezindlu, ukwakhiwa kwemvelo yokuhlala, futhi kufikelela izidingo ezinhle zemvelo kanye nezidingo zasekuqaleni. Ukulinganisela kwamasevisi kuboniswa ekuboniseni i-Table 1.

Table 1 a residential district heating installed balance valve flow deviation comparison table

Ivalvu yokulungiswa ekwenzeni kwesistimu sokuphefumula isetshenziselwa.

Izinqubo zifaka ukuthi isistimu sokuqala sokupheka isetshenziselwa i-balancing valve, ukudala kwesistimu sokuqala sokuhambisana kwesivinini kungafika ekubunjweni kwezinhlelo zokuhlanganisa, okwenzelwe iminyaka eminingi akukho ukulungiswa kwezindawo zokupheka zokusetshenziswa kancane kuneminyaka 18 ℃; isistimu isetshenziswa kancane kwezindawo zokuhamba kanye nezindawo zokuphela zokuhamba kungatholakala ekubunjweni kwezinhlelo zokuhlanganisa, isimo sokuhamba okuphelele kanye nokuhamba okuphezulu kungatholakala, isimo sokupheka kwezinhlelo. Izingane zokusetshenziswa ngenxa yezimoto yabo, kufaka phakathi izinkinga zokuphela kwezinhlelo, ngokushintsha i-balancing valve flow balance distribution, kodwa futhi ukufikela ekubunjweni kwezinhlelo.

5 Balance valve on the heating system operation regulation experience

① Iphenomenon yokushisa nokugcwele okungaphansi kwezinzuzo, kuyacelwa ukuthi kudingekile, i-irate yeziguli yomsebenzisi iyaphusha. ② Ukwenza umsebenzi ophakathi kwezakhiwo zezinkanyezi. (Emva kokwenza isicelo sokuthuthukiswa kwezakhiwo zezindawo, i-boiler room ethile ekwakhiweni elinikeza 190,000 m2 yezindawo zokushisa, indawo yokushisa itholakala kwi-230,000 m2, indlela yokushisa iyatholakala kanye nokuhle. ③ Isici sokwenza okukhethwa kwemvelo ekwenzeni. Isistimu yokushisa ingasebenzisa okufanele ukuthuthukisa ukushisa ngokwesokudla phakathi kwamanzi okuphela nokubuya kwezulu, okwenza okukhethwa kwemvelo nokukhokhelwa. (Indawo yezindawo emva kokwenza isicelo sokuthuthukiswa kwezakhiwo, isici sokushisa sokubuyela emuva kwamanzi ashiye ngaphezulu kwe-3 ℃) ④ Ukwenza okuthuthukisiwe ukuthi izinkuni zokwenza zihamba ekhulwini elikhulu. Bonke abakhokheli ukusebenza kanye nokwengeza ubudlelwano obukhulu bezinkuni zokwenza.

Ukugcina

Ukusebenzisa i-balancing valve ekulingiseni kwesistimu sokuqala sokupheka kuyenza kube kuhambisana nesimo se-hydraulic balance. Kuyadingeka ukuthi kube kuhambisana nesimo se-hydraulic balance.