Ngoba i-heater ye-air duct isetshenziswa kakhulu embonini. Ngokwezidingo zokushisa, izidingo zevolumu yomoya, usayizi, impahla nokunye, ukukhetha kokugcina kuzohluka, futhi intengo izohluka. Ngokuvamile, ukukhetha kungenziwa ngokwamaphuzu amabili alandelayo:
1. Amandla:
Ukukhethwa okulungile kwamanzi kungahlangabezana namandla adingekayo ngokushisa okuphakathi, qinisekisa ukuthi i-heater ingafinyelela izinga lokushisa elidingekayo lapho isebenza. Khona-ke, tkumele kubhekwe izici ezintathu ezilandelayo ekukhetheni ukubala kwamanzi:
(1) Shisisa into yokushisisa ukusuka ezingeni lokushisa lokuqala ukuze ubeke izinga lokushisa ngaphakathi kwesikhathi esibekiwe;
(2) ngaphansi kwezimo zokusebenza, amandla kufanele abe anele ukugcina izinga lokushisa le-medium;
(3) Kufanele kube nemajini ethile ephephile, ngokuvamile kufanele ibe ngu-120%.
Ngokusobala, i-wattage enkulu ikhethwa ku-(1) kanye no-(2), bese, i-wattage ekhethiwe iphindaphindwa ngemajini ephephile.
2. Inani lomklamo weisivinini somoya:
Ukulinganisa ingcindezi yomoya, isivinini somoya kanye nevolumu yomoya kungenziwa nge-pitot tube, i-U-type manometer, i-micro-manometer etshekisayo, i-anemometer yebhola elishisayo nezinye izinsimbi. I-pitot tube kanye ne-U-type manometer ingahlola ingcindezi ephelele, ingcindezi eguquguqukayo kanye nokucindezela okumile ku-heater yamapayipi omoya, futhi isimo sokusebenza se-blower kanye nokumelana nesistimu yokuphefumula umoya kungaziwa ngokucindezela okuphelele okulinganiselwe. Umthamo womoya ungaguqulwa usuka kumfutho oguquguqukayo okaliwe. Singakwazi futhi ukukala isivinini somoya nge-anemometer yebhola elishisayo, bese sithola ivolumu yomoya ehambisana nesivinini somoya.
1. Xhuma isiphephetha-moya nepayipi lokungenisa umoya;
2. Sebenzisa itheyiphu yensimbi ukukala usayizi wepayipi lomoya;
3. ngokuya ngobubanzi noma usayizi wepayipi elingunxande, thola indawo yephuzu lokulinganisa;
4. Vula imbobo eyindilinga (φ12mm) epayipini lomoya endaweni yokuhlola;
5. Maka indawo yamaphoyinti okulinganisa ku-pitot tube noma i-anemometer yebhola elishisayo;
6. Xhuma ithubhu ye-picot kanye ne-U-type manometer nge-latex tube;
7. Ishubhu le-pitot noma i-anemometer yebhola elishisayo ifakwa ngokuma emhubheni womoya emgodini wokulinganisa, ukuze kuqinisekiswe ukuthi indawo yokulinganisa ilungile, futhi unake isiqondiso se-pitot tube probe;
8. Funda ukucindezela okuphelele, ukucindezela okuguquguqukayo kanye nokucindezela okumile emhubheni ngokuqondile ku-manometer emise okwe-U, futhi ufunde isivinini somoya ku-duct ngqo ku-anemometer yebhola elishisayo.
Isikhathi sokuthumela: Nov-12-2022