Ukuqonda Ukubuyiswa Kwamandla Kwi-Rotary Heat Exchangers

Izinto ezibalulekileyo zobugcisa ezichaphazela ukusebenza kakuhle kwamandla

Ukuqonda ukubuyiswa kwamandla kwii-rotary heat exchangers- Izinto eziphambili zobugcisa ezichaphazela ukusebenza kakuhle kwamandla

Iinkqubo zokubuyisa ubushushu zingahlulwahlulwa zibe ziindidi ezimbini ngokusekwe kwiiparameter zobushushu zenkqubo: Iinkqubo zokubuyisa amandla kunye nokuguqulwa kobushushu obumdaka obuneparameters eziphezulu zobushushu (ngaphezulu kwama-70).^oC) kunye neenkqubo zokubuyisa amandla kunye nokuguqula ubushushu obungafunekiyo kunye neeparameters eziphantsi zobushushu (ngaphantsi kwama-70^oC).

Iinkqubo zokubuyisa ubushushu kunye nokuguqula amandla ngaphezulu kwama-70^oI-C isetyenziswa kwiinkqubo zobuchwepheshe ezenzeka kumashishini asebenzisa amandla, ukutya, iikhemikhali, kunye nezinye iinkqubo apho kukhutshwa khona ubushushu obukhulu benkunkuma. Olu bushushu benkunkuma obunemilinganiselo ephezulu yobushushu bungasetyenziselwa ukuphucula amandla kunye nokusebenza kakuhle kwezoqoqosho kwamashishini ngokufudumeza umoya ngokuthe ngqo kwiinkqubo zomoya okanye ngokwandisa iinkqubo zobuchwepheshe ezifuna amaqondo obushushu aphezulu (umz. umthombo wobushushu weempompo zobushushu ezisetyenziselwa ukucoca kwishishini lokutya, okanye ukuvelisa umbane kwiinkqubo ze-organic Rankine Cycle okanye zeKalina Cycle). Ubushushu benkunkuma obunemilinganiselo yobushushu ephezulu bungasetyenziselwa iinkqubo zokufrijisa kunye nezomoya (umz. ukuguqula amandla obushushu abe ngamanzi abandayo kusetyenziswa ii-chillers zokufunxa okanye zokufunxa).

Iinkqubo zokubuyisa ubushushu kunye nokuguqula amandla ngaphantsi kwama-70^oIi-C zihlala zisetyenziselwa ukufudumeza kwizakhiwo zokuhlala (umz. ukufudumeza ngaphantsi komgangatho kusetyenziswa iipompo zobushushu) okanye kwizakhiwo zorhwebo (umz. kwiiyunithi zokuphatha umoya (AHU) zokufudumeza umoya "omtsha" okanye "wangaphandle" ngokufumana ubushushu kumoya "osetyenzisiweyo" okanye "ophumayo"). Eli nqaku liza kugxila kwizicelo zezakhiwo zorhwebo.

Iinkqubo zokubuyisela ubushushu kwiiyunithi zokuphatha umoya zisekelwe kwiinkqubo ezimbini, ngokuxhomekeke kuhlobo lwesisombululo esamkelweyo kuyilo lweyunithi, ezisebenzisa umbane (iinkqubo ezisebenzayo) okanye ezingasebenzisi (iinkqubo ezingasebenziyo). Iinkqubo zokubuyisela ubushushu ezisebenzayo kwiiyunithi zokuphatha umoya ziquka, umzekelo, iinkqubo ezisekelwe kwii-rotary heat exchangers okanye ii-reversible heat pumps. Iinkqubo zokubuyisela ubushushu ezingasebenziyo ziquka ii-cross and heavy exchangers. Uphawu lokubuyisela ubushushu kwiinkqubo zokungenisa umoya kukuba ubushushu bufunyanwa ngokwahluka okuncinci kobushushu phakathi komoya obushushu obuphezulu kunye nomoya obushushu obuphantsi, apho umoya obushushu obuphezulu ungadluli kuma-30.^oC (kwizakhiwo zorhwebo, ukubuyiselwa kobushushu kwenzeka nokuba kubushushu bomoya obuphantsi).

Amaxesha amaninzi, ukubuyiselwa kobushushu kwiiyunithi zomoya nomoya opholileyo kwenziwa kusetyenziswa ii-heat exchangers ezijikelezayo okanye ezinqumlayo (ezinama-hexagonal), ezingasebenzisi rhoqo ii-heat pumps. Ii-heat exchangers ezijikelezayo zisetyenziswa kwii-AHUs apho kuvunyelwe ukutshintshiselana ngobuninzi phakathi komoya wokungena kunye nomoya ophumayo kwi-AHU (ezi zihlala zizakhiwo zikawonke-wonke). Ii-heat exchangers ezinqumlayo kunye nezinama-hexagonal zisetyenziswa kwiiyunithi zokuphatha umoya apho kungenakuvunyelwa ukutshintshiselana ngobuninzi phakathi komoya omtsha nosetyenzisiweyo (umz. izibhedlele). Ii-heat pumps eziguqukayo zisetyenziswa xa kufuneka umoya obonelela ngobushushu obuphezulu ngeenjongo zokufudumeza.

Ibhalansi yobunzima kunye namandla kwiindawo zokutshintsha ubushushu ezisetyenziswa kwiiyunithi zokuphatha umoya

Xa kubalwa ukusebenza kwe-rotary heat exchanger ukuze kubuyiselwe ubushushu kwiiyunithi zokuphatha umoya, ukongeza kwi-energy balance, kufuneka i-mass balance efanelekileyo. Ezi zilandelayo zii-energy kunye ne-mass balance equations zeemeko zokuhamba kwe-steady-state kunye nengcamango elandelayo. Utshintsho lwe-periodic parameter oluvela kwi-rotary movement ye-exchanger lubalwa ngokwe-avareji kwi-energy kunye ne-moisture balance iyonke — oko kukuthi, utshintsho lwengingqi oluqhubekayo kubushushu kunye ne-humidity kumphezulu wevili elijikelezayo alubalulekanga kwaye ngaloo ndlela alufakwanga kwizibalo.

a) Ubunzima, uxinaniso, kunye nokulinganisela amandla kwi-rotary heat exchangers: