Phakathi kwezici ezithinta ikhwalithi ye-electric defrost heat element, ikhwalithi yezinto ezibonakalayo yisizathu esibalulekile. Ukukhetha okunengqondo kwezinto zokusetshenziswa ze-defrost heat tube kuyisisekelo sokuqinisekisa ikhwalithi ye-defrost heater.
1, isimiso sokukhetha ipayipi: ukumelana lokushisa, ukumelana nokugqwala.
Kumapayipi okushisa aphansi, i-BUNDY, amapayipi e-aluminium, amapayipi ethusi ngokuvamile asetshenziswa, futhi amapayipi okushisa aphezulu ngokuvamile amapayipi ensimbi engenasici kanye namapayipi e-Ingle. Ishubhu ye-Ingle 800 heatig ingasetshenziswa esimweni sekhwalithi yamanzi empofu, i-tube yokushisa kagesi ye-Ingle 840 ingasetshenziswa esimweni sokushisa esiphezulu sokusebenza sinokumelana okuhle kwe-oxidation, inokumelana nokugqwala okuhle.
2, ukukhethwa kocingo lokumelana
Izinto zocingo zokumelana ezivame ukusetshenziswa ku-electric defrost heat element yi-Fe-Cr-Al kanye ne-Cr20Ni80 resistance wire. Umehluko omkhulu phakathi kwezintambo ezimbili zokumelana ukuthi indawo yokuncibilika ye-0Cr25Al5 iphakeme kunaleyo ye-Cr20Ni80, kodwa emazingeni okushisa aphezulu, i-0Cr25Al5 ilula ukwenza i-oxidize, futhi i-Cr20Ni80 ingakwazi futhi ukugcina ukusebenza okuzinzile emazingeni okushisa aphezulu. Ngakho-ke, intambo yokumelana esetshenziswa ekushiseni okuphezulu ngokuvamile i-Cr20Ni80.
3, ukukhethwa kwe-MgO powder
Impushana ye-MgO itholakala phakathi kwentambo yokumelana nodonga lweshubhu futhi isetshenziselwa ukwahlukanisa phakathi kwentambo yokumelana nodonga lweshubhu. Ngesikhathi esifanayo, i-MgO powder ine-conductivity enhle yokushisa. Kodwa-ke, i-MgO powder inezici ezinamandla ze-hygroscopic, ngakho-ke kufanele iphathwe ngokumelana nomswakama (i-MgO powder eguquliwe noma ivalwe ngepayipi lokushisa kagesi) uma isetshenziswa.
I-MgO powder ingahlukaniswa ibe yimpushana yokushisa ephansi kanye nempushana yokushisa ephezulu ngokuya ngebanga lokushisa elisetshenzisiwe. Izinga lokushisa eliphansi powder ingasetshenziswa kuphela ngaphansi 400 ° C, ngokuvamile modified MgO powder.
I-MgO powder esetshenziswa epayipini lokushisa likagesi yakhiwe izinhlayiya ezihlukene ze-MgO powder ngokuhambisana nengxenye ethile (isilinganiso semeshi).
4, ukukhethwa kwezinto zokuvala uphawu
Indima yezinto zokuvala uphawu ukuvimbela umswakama womkhathi ukuba ungangeni ku-MgO powder ngomlomo wepayipi, ukuze i-MgO powder ibe manzi, ukusebenza kwe-insulation kuncishiswe, kanye nokuvuza kwepayipi lokushisa kagesi nokuhluleka. I-magnesia powder eguquliwe ayikwazi ukuvalwa.
Izinto eziyinhloko ezisetshenziselwa ukuvala i-tube yokushisa kagesi (umswakama-ubufakazi) yingilazi, i-epoxy resin, uwoyela we-silicone nokunye. Epayipini lokushisa kagesi elivalwe ngamafutha a-silicone, ngemva kokushisa, amafutha e-silicone emlonyeni wepayipi azovuthwa ukushisa, futhi ukukhishwa kwepayipi yokushisa kagesi kuzokwehla. Ukumelana nezinga lokushisa kwezinto ze-epoxy resin akuphezulu, futhi ngeke kusetshenziswe kumashubhu kagesi asezingeni eliphezulu njengezoso ne-oven microwave enokushisa okuphezulu emlonyeni wepayipi. Ingilazi inokumelana nokushisa okuphezulu, kodwa intengo iphakeme, futhi isetshenziselwa ukuvala amapayipi okushisa aphezulu.
Ngaphezu kwalokho, kuzoba namashubhu abicah, imikhono ye-silicone, ubuhlalu be-porcelain, ama-insulators epulasitiki nezinye izingxenye emlonyeni wepayipi, ikakhulukazi ukwandisa igebe likagesi kanye nebanga le-creepage phakathi kwenduku yokuhola kanye nodonga lwensimbi lomlomo wepayipi. Irabha ye-Silicone ingadlala indima yokugcwalisa nokubopha.
Uma unentshisekelo ngemikhiqizo yethu, pls xhumana nathi ngqo!
Oxhumana nabo: Amiee Zhang
Email: info@benoelectric.com
Wechat: +86 15268490327
WhatsApp: +86 15268490327
Skype: amiee19940314
Isikhathi sokuthumela: May-16-2024