Tabari Fan Zaɓi:
Zaɓi yawan iska da fan ke so bisa ga girman sararin dafa abinci da kuma tsari na tabaki cover
Hanyar lissafi kamar haka:
1, Total iska fitarwa, bisa ga kitchen sarari, 40-60 sau a kowace awa.
Misali, jimlar yankin dafa abinci 160 sq.m. da tsawo na 3 m. Ana buƙatar ƙarfin iska 160X3X60 = 28800m3 / h.
2, na gida bisa ga kicin taba fitarwa rufin iska (taba fitarwa rufin kewaye rage da bango tsawon), a kowane dakika iska gudun a kusan 0.5 mita.
Misali, murfin taba na kicin yana da nisan mita 25, tsawon bangon yana da tsawon mita 10. Yana bukatar iska yawa ne 3600X (25-10) X0.5 = 27000m3 / h.
II: lissafin matsin lamba da fan bukata bisa ga yanayin bututun:
1, ƙayyade iska bututun sashe yankin bisa ga iska yawa da iska gudun (iska gudun 10-15m / s). Ya fi kyau kada a wuce 2: 1 (don adana kayan da rage iska juriya).
2, lissafin iska juriya bisa ga iska gudun, iska bututun sashe yankin, kullun, bambanci da sauransu yanayi (watau matsin lamba da ake bukata ga iska fan).
3: Dangane da ƙididdigar iska, matsin lamba. Zaɓi fan mai dacewa.
Zaɓi muhimmanci:
Ana zaɓar babban sigogin sarrafawa na hayaki na hayaki shine aikin zafin jiki, iska, cikakken matsin lamba, inganci, amo, ikon injin, gudun juyawa da ikon shaft.
Ya kamata hayaki mai fitar da taba ya yi aiki daidai na dogon lokaci a yanayin matsakaicin zafin jiki ba sama da 85 ° C ba.
Ya kamata a tabbatar da cewa hayaki mai fitar da taba zai iya ci gaba da aiki na 30min a lokacin da zafin jiki na kafofin watsa labarai ke 280 ℃, kuma har yanzu zai iya ci gaba da aiki daidai lokacin da zafin jiki na kafofin watsa labarai ke sanyaya zuwa zafin jiki na muhalli.
A ƙarƙashin ƙididdigar juyawa, a cikin yankin aiki, ƙididdigar matsin lamba na iska da ƙididdigar da aka ba a cikin umarnin ya kamata ya cika ƙa'idodin da ke ƙasa:
A karkashin ƙayyadaddun kwarara, daidai da matsin lamba darajar rabuwa ne ± 5%.
A karkashin ƙayyadaddun kwarara na centrifugal hayaki mai fitarwa, daidai da daidaitaccen matsin lamba shine ± 5%.
Ya kamata ƙididdigar amo ta ƙididdigar A a ƙarƙashin yanayin da aka bayar a cikin umarnin hayaki ya dace da ƙa'idodin JB / T8690-1998.
Ana iya amfani da hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar hayar haya. Takaddun shaida na hayaki na hayaki daidai da ƙa'idodin "Tsarin ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙirar ƙira. The m iska yawa na hayaki fan ne 7200m / h, mafi girma iska yawa ba ya kamata ya wuce 60000m / h (yana nufin mafi girma iska yawa na wani hayaki sashe).
Ya kamata yawan iska na hayaki ya ƙara ba kasa da 10% ~ 20% na yawan iska da ake buƙata.
The iska matsin lamba darajar na anti-taba matsin lamba ventilator ya kamata a lissafa bisa ga taba fitarwa tsarin mafi m madaidaiciya, da kuma tabbatar da a ciki matsin lamba darajar 40 ~ 50Pa tsakanin anti-taba matakala. A ciki matsin lamba darajar 25 ~ 30Pa a gaban dakin, hada-hada gaban dakin, wuta lif gaban dakin, mafaka layer da sauransu.
Wuta hayaki iska ya kamata ya dace da halin yanzu ka'idodin JB / T10281-2001 "wuta hayaki iska fasaha yanayi".
Fan na taba fitarwa tsarin ya kamata a saita daban. Matsayin fan na taba ya kamata ya kasance a kan sama ko sama da taba na yankin taba.
Hanyar gwaji:
An yi daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidaitaccen daidai
An gudanar da gwajin saurin ƙafafun ƙafafun daidai da ƙa'idodin 7BIT 6445.
Injin aiki gwajin wuta exhaust fan ne ci gaba da aiki a ƙarƙashin aikin da aka yi, bayan 20min da zafin jiki daidaitacce, auna bearing m lita da rawar jiki. Litar ba za ta wuce digiri 4nC ba, gwajin rawar jiki na 99 da darajar m ya kamata ya dace da ƙa'idodin 7Bfr 96V.
Gwajin aikin iska na wuta mai fitar da hayaki ya gudanar da gwajin aikin iska bisa ga ƙa'idodin GB + T 1236.
Hanyar auna amo ta gwajin sauti tana gudanarwa bisa ga ƙa'idodin CB / r 2888. Ƙididdigar amo ya kamata ta dace da ƙa'idodin 7BIT 8690.
High zafi juriya gwaji bisa ga GA211 ƙayyade shiga bar. Babban aikin crystal yana neman cimma ƙa'idodin 4.42.