Takirere whānui wera, ngongo kapia, takirere whānui hiko, e toru ngā taputapu whakawhāiti nui

Takirere whānui wera, ngongo kapia, takirere whānui hiko, e toru ngā taputapu whakawhāiti nui

Ko te tikanga whakawhāiti tētahi o ngā wāhanga nui o te taputapu whakamatao. Ko tana mahi he whakaiti i te wai mākū (te wai whakamatao rānei) i raro i te pēhanga whakatōtō i roto i te kaiwhakawhāiti, i te kaiwhiwhi wai rānei ki te pēhanga mimiti me te pāmahana mimiti i muri i te whakawhāiti. E ai ki te huringa o te kawenga, ka whakatikatikaina te rere o te hau whakamatao e tomo ana ki te whakawhāiti. Ko ngā taputapu whakawhāiti e whakamahia whānuitia ana ko ngā ngongo kapiti, ngā takirere whakawhānui wera, me ngā takirere pōrewarewa.

Mena he nui rawa te nui o te wai e tukuna ana e te pūnaha whakatere ki te evaporator ki te whakaritea ki te kawenga o te evaporator, ka uru tetahi wāhanga o te wai hauhautanga ki te compressor me te hauhautanga hau, ka puta he aituā pēhanga mākū, he aituā hama wai rānei.

Engari, ki te iti rawa te nui o te wai e tukuna ana ki te kawenga wera o te evaporator, kāore e taea e tetahi wāhanga o te rohe whakawhiti wera o te evaporator te mahi tino pai, ā, ka heke te pēhanga mimiti; ā, ka heke te kaha whakamatao o te pūnaha, ka heke te tauwehenga whakamatao, ā, ka piki te pāmahana tukunga o te compressor, ka pā ki te hinu whakahinuhinu noa o te compressor.

Ina puta te wai whakamatao i roto i tētahi kōhao iti, ka hurihia tētahi wāhanga o te pēhanga tūmau hei pēhanga hihiri, ā, ka piki tere te tere o te rere, ka huri hei rere pōrearea, ka whakakorikoria te wai, ka piki te ātete waku, ka heke te pēhanga tūmau, kia taea ai e te wai te whakatutuki i te kaupapa o te whakaiti i te pēhanga me te whakahaere i te rere.

Ko te whakawhāiti i te pāmahana tetahi o ngā tukanga matua e whā e tino hiahiatia ana mō te huringa whakamatao kōpeketanga.

E rua ngā mahi a te pūnaha whakawhāiti:

Ko tētahi ko te whakawhāiti me te whakaheke i te pēhanga o te wai hauhautanga pēhanga teitei e puta mai ana i te pūwhakapūmau ki te pēhanga mimiti.

Ko te tuarua ko te whakarerekē i te nui o te wai whakamatao e tomo ana ki te evaporator kia rite ki ngā huringa kawenga pūnaha.

1. Takirere whakawhanui wera

He whānuitia te whakamahinga o te takirere whakawhanui wera i roto i te pūnaha whakamatao Freon. Mā te mahi a te tikanga tirotiro pāmahana, ka huri aunoa me te huringa pāmahana o te hauhautanga i te putanga o te evaporator kia tutuki ai te kaupapa o te whakarerekē i te nui o te wai e tukuna ana e te hauhautanga.

Ko te nuinga o ngā takirere whakawhanui wera he pāmahana wera nui kei te 5 ki te 6°C i mua i te wehenga atu i te wheketere. Mā te hanganga o te takirere ka noho tuwhera te takirere ina whakanuia te pāmahana wera nui mā te 2°C anō. Ina tata ki te 2°C te pāmahana wera nui, ka kati te takirere whakawhanui. Ko te puna whakatikatika hei whakahaere i te pāmahana wera nui, ko te awhe whakatikatika he 3～6℃.

I te nuinga o te wā, ko te teitei ake o te wera nui e whakatakotoria ana e te takirere whakawhanui wera, ko te iti iho o te kaha mimiti wera o te evaporator, nā te mea ko te whakanui ake i te wera nui ka nohoia he wāhanga nui o te mata whakawhiti wera i te hiku o te evaporator, kia taea ai te whakamahana i te mamaoa kua mākū ki konei. Kei roto i tēnei wāhanga o te rohe whakawhiti wera o te evaporator, kia iti ake ai te horahanga mimiti me te mimiti wera o te hauhautanga, arā, kāore te mata o te evaporator e tino whakamahia.

Heoi, ki te iti rawa te wera nui, ka kawea mai pea te wai hauhautanga ki roto i te pūwhakapū, ka hua ake he āhuatanga kino o te hama wai. Nō reira, me tika te whakahaere i te wera nui kia tino uru te hauhautanga ki roto i te pūwhakapū, me te ārai hoki i te hauhautanga wai ki roto i te pūwhakapū.

Ko te takirere whakawhanui wera he mea hanga nui mai i te tinana takirere, he kete ine pāmahana me te ngongo kapia. E rua ngā momo takirere whakawhanui wera: te momo taurite ā-roto me te momo taurite ā-waho e ai ki ngā tikanga taurite diaphragm rerekē.

Takirere whakawhanui wera taurite ā-roto

Ko te takirere whakawhanui wera ā-roto he mea tito mai i te tinana takirere, te tokotoko pana, te nohoanga takirere, te ngira takirere, te puna, te tokotoko whakahaere, te pūrama ine pāmahana, te ngongo hono, te diaphragm ine me ētahi atu wāhanga.

Takirere whakawhanui wera taurite o waho

Ko te rerekētanga i waenga i te takirere whānui wera momo taurite o waho me te momo taurite o roto i roto i te hanganga me te tāutanga ko te wāhi i raro i te diaphragm takirere taurite o waho kāore i te hono atu ki te putanga takirere, engari he paipa taurite iti te diameter hei hono atu ki te putanga whakamomona. Mā tēnei ara, ko te pēhanga hauhautanga e pā ana ki raro o te diaphragm ehara i te Po i te tomokanga o te whakamomona i muri i te whakawhāiti, engari ko te pēhanga Pc i te putanga o te whakamomona. Ina taurite te kaha o te diaphragm, ko Pg=Pc+Pw. Kāore te ātete rere i roto i te koiri whakamomona e pāngia e te tohu whakatuwheratanga o te takirere, nō reira ka whakakorea ngā ngoikoretanga o te momo taurite o roto. Ko te momo taurite o waho te nuinga o te wā e whakamahia ana i ngā wā he nui te ātete o te koiri whakamomona.

I te nuinga o te wā, ko te nekehanga wera nui o te mamaoa ina kati te takirere whānui ka kiia ko te nekehanga wera nui kati, ā, he rite anō hoki te nekehanga wera nui kati ki te nekehanga wera nui tuwhera ina tīmata te whakatuwheratanga o te kōhao takirere. E pā ana te wera nui kati ki te utaina o mua o te puna, ka taea te whakarite mā te rīpene whakatikatika.

Ko te wera nui ina whakaritea te puna ki te tūranga tino wetekina ka kiia ko te wera nui kati iti rawa; engari, ko te wera nui ina whakaritea te puna ki te tino piri ka kiia ko te wera nui kati mōrahi. I te nuinga o te wā, ko te nekehanga wera nui kati iti rawa o te takirere whānui kāore e neke ake i te 2℃, ā, ko te nekehanga wera nui kati mōrahi kāore e iti iho i te 8℃.

Mō te takirere whakawhanui wera ā-roto, ka mahi te pēhanga mimiti i raro i te diaphragm. Mena he nui te ātete o te evaporator, ka nui te ngaronga ātete rere ina rere te hauhautanga i roto i ētahi evaporator, ka pā kino ki te takirere whakawhanui wera. Ka piki ake te mahi a te evaporator, ka hua ake te pikinga o te taumata wera nui i te putanga o te evaporator, me te whakamahinga koretake o te rohe whakawhiti wera o te evaporator.

Mō ngā takirere whakawhanui wera taurite o waho, ko te pēhanga e mahi ana i raro i te diaphragm ko te pēhanga putanga o te evaporator, ehara i te pēhanga mimiti, ā, ka pai ake te āhuatanga.

2. Te pūwero

Ko te capillary te taputapu whakawhāiti ngāwari rawa atu. He ngongo parahi angiangi rawa te capillary, he roa kua tohua, ā, ko tōna whānui o roto he 0.5 ki te 2 mm te nuinga.

Ngā āhuatanga o te capillary hei taputapu whakawhāiti

(1) Ka tangohia te pūwero mai i tētahi ngongo parahi whero, he mea ngāwari ki te hanga, ā, he iti hoki te utu;

(2) Kāore he wāhanga nekeneke, ā, ehara i te mea ngāwari te pakaru me te turuturu;

(3) Kei a ia ngā āhuatanga o te utu-whaiaro,

(4) Kia mutu te rere o te pūwero whakamatao, ka taea te whakataurite tere i te pēhanga i te taha pēhanga teitei me te pēhanga i te taha pēhanga iti i roto i te pūnaha whakamatao. Ina tīmata anō te rere, ka tīmata te motuka o te pūwero whakamatao.

3. Takirere whakawhanui hiko

He momo tere te takirere whānui hiko, e whakamahia ana i roto i te hauhautanga hurihuri e whakahaeretia ana e te mohio. Ko ngā painga o te takirere whānui hiko: he whānuitanga whakarerekētanga rere nui; he tika te whakahaere; he pai mō te whakahaere mohio; he pai mō ngā huringa tere o te rere o te hauhautanga tino whai hua.

Ngā Painga o ngā Takirere Whakawhanui Hiko

Te whānuitanga whakarerekētanga rere nui;

Te tino tika o te whakahaere;

He pai mō te whakahaere atamai;

Ka taea te whakamahi mō ngā huringa tere o te rere o te hau whakamatao me te tino whai huatanga.

Ka taea te whakarerekē i te whakatuwheratanga o te takirere whānui hiko ki te tere o te pūwhakapūngao, kia ōrite ai te nui o te hauhautanga e tukuna ana e te pūwhakapūngao ki te nui o te wai e tukuna ana e te takirere, kia taea ai te whakanui ake i te kaha o te pūwhakapūngao me te whakatutuki i te mana whakahaere tino pai o te pūnaha hauhautanga me te pūnaha pouaka whakamātao.

Mā te whakamahi i te takirere whānui hiko ka taea te whakapai ake i te whai huatanga o te pūngao o te pūngao hurihuri, te whakatutuki i te whakarerekētanga tere o te pāmahana, me te whakapai ake i te ōwehenga whai huatanga o te pūngao ā-wā o te pūnaha. Mō ngā hauhautanga hurihuri kaha-tiketike, me whakamahi ngā takirere whānui hiko hei wāhanga whakawhāiti.

E toru ngā wāhanga o te hanganga o te takirere whānui hiko: te kimi, te whakahaere me te whakatinanatanga. E ai ki te tikanga taraiwa, ka taea te wehewehe ki te momo hikohiko me te momo hiko. Ka wehea anō te momo hiko ki te momo mahi-tika me te momo whakaheke tere. Ko te motuka hikoi me te ngira takirere he momo mahi-tika, ā, ko te motuka hikoi me te ngira takirere mā roto i te whakaiti taputapu he momo whakaheke tere.