Me yasa zafin janareta yayi girma?
Mai tsayi mai tsayi zazzabi janareta yana barazana ga aminci da aminci - ga yadda ake ganowa da gyara shi. Girma zazzabi janareta yawanci ya samo asali ne daga tushen tushe guda biyar: gazawar sanyaya, nauyi mai yawa, damuwa na muhalli, lahani na inji, ko rashin kulawa. Yin watsi da waɗannan haɗarin bala'i na bala'i-daga pistons da aka kama zuwa iskar kona. Wannan jagorar yana rushe kowane mai faɗakarwa kuma yana ba da mafita masu aiki.
Kasawar Tsarin Sanyaya
Rufewa ko yoyon tsarin sanyaya yana haifar da 70% na al'amuran zafi fiye da kima. Babban gazawar sun haɗa da:
Toshewar Radiator: kura, kwari, ko tarkace suna rage kwararar iska da kashi 40-60%, yanayin zafi mai sanyi sama da 95°C.
Batutuwa masu sanyaya: Ƙananan matakan, gurɓataccen ruwa, ko daidaitaccen rabon ruwa-zuwa sanyaya (misali, ƙaƙƙarfan ruwa) yana hana canja wurin zafi.
Rashin gazawar bangaren:
Kuskuren famfunan ruwa suna lalata wurare dabam dabam.
bel ɗin fan da aka sawa suna zamewa, yana yanke kwararar iska da kashi 30%.
Maƙeran thermostats suna kama zafi a cikin madaukin injin.
Gyara: Tsaftace radiators kowane wata; maye gurbin coolant kowace shekara; duba bel / famfo a cikin kwata.
Motsa Jiki
Dogayen lodi sama da 110% tura turawa zazzabi janareta zuwa yankin haɗari (> 140 ° C):
Formula: Hawan zafin jiki ≈ (Load rate)². A nauyin 120%, fitarwar zafi ya karu da kashi 44% sabanin na maras muhimmanci.
Kwayar cututtuka:
Iskar iska ta wuce 130 ° C, yana haɓaka ƙonewar rufi.
Matsalolin fitar da ruwa suna haskaka ja yayin aikin dare.
Magani: Shigar da na'urorin zubar da kaya ta atomatik don ɗaukar buƙatu a iyakoki masu aminci (≤105%).
Muhalli da Tarkon Shigarwa
Abubuwan waje suna karkatar da jeri na aiki na "al'ada":
Babban zafi na yanayi (> 40 ° C): Yanke ingancin sanyaya da 25-30%. Zazzabi na shawagi kusa da madaidaicin madaidaicin madaidaicin ko da a 80% lodi.
Tasirin Matsayi: A 1,500m+, iska mai bakin ciki yana rage zafi da 15%. Ƙananan radiyo suna kasawa da sauri.
Rashin samun iska: Ƙaƙƙarfan ɗakuna masu <1m share tarkon iska mai zafi. Shaye-shaye da aka sake zagaya yana ɗaga zafin ci da 10-15 ° C.
Ragewa: Yi amfani da radiyo masu zafi na wurare masu zafi; ƙara ƙarin magoya baya; mayar da raka'a zuwa wurare masu inuwa, buɗaɗɗe.
Matsalolin Makanikai
Laifukan ɓoye suna haifar da mugunyar zazzafan zafafa:
Lalacewar mai: Man shafawa mai gurɓataccen sot yana rasa ɗankowa, ƙara juzu'i da ɗaukar zafi>90°C.
Leaks Silinda: Fasasshen layi/gastoci na kai suna ba da damar mai sanyaya shiga cikin silinda, yana haifar da aljihunan tururi da zafi mai zafi.
Matakan da ba a daidaita su ba:> 10% rashin daidaituwa na yanzu tsakanin matakai yana haifar da jan hankali, dumama rotors 20% sauri.
Ganewa: Bincika farar hayaƙi mai shayewa (leak mai sanyaya) ko ƙarar ƙara (launi mai ɗaukar nauyi).
Rashin Kulawa
Ayyukan da ba a kula da su suna ƙara ƙarfin zafi:
Fitar da iska: Masu tacewa da aka toshe suna tilasta injina su “shaƙe,” suna ɗaga zafin ci 8-12°C.
Lubrication: Abubuwan da ba a cika su ba suna yin zafi a cikin sa'o'i 2 na nauyin nauyi; overgreasing insulates zafi.
Na'urori masu auna firikwensin da ba a kula da su ba: Canjin daidaitawa a cikin binciken PT100 yana jinkirta umarnin rufewa da mintuna 10-15 - ya isa ya murƙushe rotors.
Mahimman tsari: Login yanayin zafi mako-mako; tace mai tsabta biweekly; calibrate firikwensin kowace shekara.
Kammalawa
Na kullum high zazzabi janareta sigina haɗarin tsarin-ba wai kawai kurakurai ba. Idan ba a kula da shi ba, yana faɗuwa cikin kamawar injin, gazawar iska, ko gyare-gyaren adadi biyar. Gudanarwar thermal mai aiki ba abin tattaunawa ba ne don lokaci mai tsawo. Kafin ƙararrawa sauti: Imel JLMECH a skala@whjlmech.com.
References
1. Carreras, BA, Lynch, VE, & Rigby, JF (2019). Samfurin da ya dogara da lokaci na gazawar janareta da farfadowa yana ɗaukar abubuwan da ke da alaƙa kuma yana ƙididdige dogaron zafin jiki. Amfanin Makamashi.
2. Apt, J., & Lavin, L. (2019). Abubuwan Wadatar Kayan Albarkatun Samar da Wutar Lantarki na Dogara. Amfanin Makamashi.
3. Kahandagamage, DC, & Senadheera, DB (2020). Binciken tasirin cajin zafin iska da zafi akan tsarin konewa na injunan diesel a Heladhanavi Power Plant, Puttalam, Sri Lanka. Masanin ilimin Semantic.
