Indlela yokukhetha isifudumezi esifanelekileyo somoya?

Kuba isifudumezi somoya sisetyenziswa ikakhulu kushishino. Ngokweemfuno zeqondo lokushisa, iimfuno zomthamo womoya, ubungakanani, izinto eziphathekayo kunye nokunye, ukhetho lokugqibela luya kuba luhluke, kwaye ixabiso liya kwahluka. Ngokubanzi, ukhetho lunokwenziwa ngokwala manqaku mabini alandelayo:

1. Umbane:

Ukukhethwa okuchanekileyo kwamanzi kunokuhlangabezana namandla afunekayo ngokufudumeza okuphakathi, qinisekisa ukuba i-heater inokufikelela kwiqondo lokushisa elifunekayo xa isebenza. Emva koko, tLe miba mithathu ilandelayo kufuneka iqwalaselwe kukhetho lokubala lwamanzi:

(1) Fudumeza isixhobo sokufudumeza ukusuka kwiqondo lobushushu lokuqala ukuseta ubushushu ngexesha elibekiweyo;

(2) phantsi kweemeko zokusebenza, amandla kufuneka anele ukugcina ubushushu besixhobo;

(3) Kufuneka kubekho umda othile okhuselekileyo, ngokuqhelekileyo ufanele ube li-120%.

Ngokucacileyo, i-wattage enkulu ikhethwe kwi-(1) kunye ne-(2), kwaye emva koko, i-wattage ekhethiweyo iphindaphindwe ngomda okhuselekileyo.

2. Ixabiso loyilo lweisantya somoya :

Umlinganiselo woxinzelelo lomoya, isantya somoya kunye nomthamo womoya unokufezwa nge-pitot tube, i-U-type manometer, i-tilting micro-manometer, i-anemometer yebhola eshushu kunye nezinye izixhobo. I-tube ye-pitot kunye ne-U-uhlobo lwe-manometer inokuvavanya uxinzelelo olupheleleyo, uxinzelelo oluguquguqukayo kunye noxinzelelo lwe-static kwi-heater duct heater, kunye nemeko yokusebenza ye-blower kunye nokuchasana kwenkqubo yokukhupha umoya ikwaziwa ngoxinzelelo olulinganisiweyo olupheleleyo. Umthamo womoya unokuguqulwa ukusuka kuxinzelelo olulinganisiweyo oluguquguqukayo. Singakwazi kwakhona ukulinganisa isantya somoya ngebhola eshushu ianemometer, emva koko sifumane umthamo womoya ohambelana nesantya somoya.

1. Qhagamshela i-fan kunye nombhobho wokungenisa umoya;

2. Sebenzisa iteyiphu yentsimbi ukulinganisa ubungakanani bombhobho womoya;

3. ngokobubanzi okanye ubungakanani bombhobho wexande, misela indawo yendawo yokulinganisa;

4. Vula umngxuma ojikelezayo (φ12mm) kwi-air duct kwindawo yokuvavanya;

5. Phawula indawo yamanqaku okulinganisa kwi-pitot tube okanye i-anemometer yebhola eshushu;

6. Xhuma ityhubhu ye-picot kunye ne-U-type manometer kunye ne-latex tube;

7. I-tube ye-pitot okanye i-anemometer yebhola eshushu ifakwe ngokuthe nkqo kwi-duct yomoya kwindawo yokulinganisa, ukwenzela ukuba kuqinisekiswe ukuba indawo yokulinganisa ichanekile, kwaye ubeke ingqalelo kwisalathiso se-pitot tube probe;

8. Funda uxinzelelo olupheleleyo, uxinzelelo oluguquguqukayo kunye noxinzelelo lwe-static kwi-duct ngqo kwi-manometer ene-U, kwaye ufunde isantya somoya kwi-duct ngqo kwi-anemometer yebhola eshushu.