Iyo sefa yemhepo ndiyo yakakosha mudziyo weiyo air conditioning yekuchenesa system. Sefa inogadzira kuramba kumhepo. Sezvo guruva resefa rinowedzera, kupikisa kwesefa kuchawedzera. Kana iyo sefa yanyanya guruva uye kushorwa kwakanyanyisa, sefa inoderedzwa nemhepo, kana sefa ichapinzwa zvishoma. Naizvozvo, kana iyo sefa kuramba ichiwedzera kune imwe kukosha, iyo sefa inoraswa. Naizvozvo, kushandisa sefa, iwe unofanirwa kuve nehupenyu hwakakodzera kutenderera. Kana iyo sefa isina kukuvadzwa, hupenyu hwesevhisi hunowanzo gadziriswa nekupikisa.
Hupenyu hwesevhisi hwesefa hunoenderana nezvakanakira uye nekuipa kwayo, senge: sefa zvinhu, nzvimbo yekusefa, dhizaini yekugadzira, kupikisa kwekutanga, etc. Izvo zvinoenderanawo nehuturu hwehupfu mumhepo, iyo chaiyo mhepo vhoriyamu, uye kugadzirisa kwekupedzisira kushorwa.
Kuti ugone kutenderera kwakakodzera kwehupenyu, iwe unofanirwa kunzwisisa shanduko mukuramba kwayo. Kutanga, iwe unofanirwa kunzwisisa zvinotevera tsananguro:
1. Yakarongerwa kupikisa kwekutanga: Kupikisa kwekutanga kunopiwa nesefa sampuli, sefa yemaitiro curve kana firita test report pasi pehuwandu hwemhepo.
2. Kurwisana kwekutanga kwekugadzira: kupikisa kwesefa pasi pehurongwa hwekugadzirisa mhepo yemhepo (inofanira kupiwa ne air conditioning system designer).
3. Kurwisana kwekutanga kwekushanda: pakutanga kwekushanda kwehurongwa, kushorwa kwesefa. Kana pasina chiridzwa chekuyera kudzvinyirirwa, kupikisa pasi pekugadzirwa kwemhepo yemhepo kunogona kutorwa chete sekutanga kushorwa kwekushanda (iyo chaiyo inomhanya mhepo yemhepo haigoni kuenzana zvakakwana nekugadzirwa kwemhepo yemhepo);
Panguva yekushanda, kupikisa kwesefa kunofanira kuongororwa nguva dzose kuti ipfuure kupikisa kwekutanga (resistance monitoring device inofanira kuiswa muchikamu chimwe nechimwe chesefa) kuti uone nguva yekutsiva firiji. Sefa yekutsiva kutenderera, ona tafura pazasi (yekureva chete):
| Category | Tarisa zvirimo | Replacement cycle |
| Fresh air inlet sefa | Iyo mesh inodarika hafu yakavharika | Tsvaira kamwe pavhiki kana zvakadaro |
| Sefa yakakora | Kupokana kwakapfuura chiyero chekutanga kuramba kwe60Pa, kana kuenzana ne2 × dhizaini kana kutanga kuramba. | 1-2 mwedzi |
| Sefa yepakati | Kupikisa kwakapfuura kurongerwa kwekutanga kuramba kwe80Pa, kana kuenzana ne2 × dhizaini kana kutanga kuramba | 2-4 mwedzi |
| Sub-HEPA sefa | Kupikisa kwakapfuura kurongerwa kwekutanga kushorwa kwe100 Pa, kana kuenzana ne2 × dhizaini kana kumhanya kwekutanga kushorwa (kushomeka kushoma uye sub-HEPA ndeye 3 nguva) | Kupfuura 1 gore |
| HEPA sefa | Kupokana kwakapfuura kurongerwa kwekutanga kuramba kwe160Pa, kana kuenzana ne2 × dhizaini kana kutanga kuramba. | Kupfuura makore matatu |
Chinyorwa chakakosha: yakaderera-inoshanda sefa inowanzo shandisa coarse fiber sefa zvinhu, gaka riri pakati pefiber rakakura, uye kuramba kwakanyanya kunogona kuridza guruva pasefa. Muchiitiko ichi, kupikisa kwesefa hakuchawedzeri, asi iko kusefa inoshanda Inenge zero, saka nyatso kudzora kupikisa kwekupedzisira kweiyo coarse sefa!
Pane zvinhu zvakati wandei zvekufunga nezvazvo pakusarudza kuramba kwekupedzisira. Kuramba kwekupedzisira kwakadzikira, hupenyu hwesevhisi hupfupi, uye mutengo wekutsiva kwenguva refu (mubhadharo wesefa, mutengo wevashandi, uye mutengo wekurasa) wakakwira zvakafanana, asi mashandisirwo emagetsi akaderera, saka sefa yega yega inofanirwa kuve nehupfumi hwekupedzisira kuramba kukosha.
Final resistance inokurudzirwa kukosha:
| Kubudirira | Yakakurudzirwa kwekupedzisira kuramba Pa |
| G3 (Yakaoma) | 100-200 |
| G4 | 150~250 |
| F5~F6(Zviripakati) | 250~300 |
| F7~F8(HEPA uye Pakati) | 300~400 |
| F9~H11(Sub-HEPA) | 400~450 |
| HEPA | 400 ~ 600 |
Iyo sefa yakasviba, ndiko kukurumidza kwekudzivirira kunokura. Kunyanya kupesana kwepamusoro hakurevi kuti hupenyu hwesefa huchawedzerwa, uye kuramba kwakanyanya kuchaita kuti iyo air conditioning system ive nekuderera kwakanyanya mumhepo. Kunyanya kupikisa zvakanyanya hazvikurudzirwi.
Nguva yekutumira: Oct-14-2021