Mine ventilation fan shiru ba kawai ƙari ba ne - wani muhimmin sashi ne wanda ke ƙayyade ko ma'adana ta hadu da iyakoki na amo, da guje wa hukunce-hukuncen tsari, da kuma kiyaye faɗakarwar ma'aikatan jirgin sama da sa'o'i 12. Mun ga ma'aikatan jirgin karkashin kasa suna ba da rahoton tinnitus bayan watanni shida na fallasa zuwa hayaniya mara nauyi a 92 dB (A); mun auna raguwar kwararar iska na 18% lokacin da masu yin shiru ba su da girma ko kuma ba su da kyau a haɗa su cikin ductwork. Shi ya sa injiniyoyi a Zibo Hongcheng Fan Co., Ltd. ke kula da kowane mine ventilation fan silencer a matsayin wani ɓangare na tsarin-ba akwatin da ke tsaye ba.
Me yasa Madaidaitan Silencers suka gaza ƙarƙashin ƙasa
Yawancin masu yin shiru a waje suna ɗaukar tsayayyen iskar iska, iska mai tsafta, da yanayin zafi ƙasa da 40°C. Ma'adinai ba sa isar da ko ɗaya daga cikin waɗannan. Iska mai cike da kura yana toshe kafofin watsa labarai masu shanyewa cikin makonni. Babban zafi yana lalata baffles na ciki. Matsin lamba ta zazzage daga al'amuran fashewa sun haɗa haɗin gwiwa. Kuma yankunan da ke tabbatar da fashewa suna buƙatar kayan da ba su da ƙarfi - gidaje na aluminum tare da bakin karfe na ciki, ba karfen carbon tare da galvanized shafi. Masoyan jerin shirye-shiryen mu na FBD suna gudana akai-akai a matsa lamba 3,200 Pa; masu yin shiru dole ne su kula da hakan ba tare da haɓakar rawa ko rabuwa ba. Abokin ciniki ɗaya a Shanxi ya maye gurbin na'urar shiru tare da naúrar da aka ƙirƙira ta al'ada-da yanke amo-ƙarshen fan daga 104 dB(A) zuwa 79 dB(A) yayin da yake riƙe ±1.2% daidaiton kwararar iska a cikin kewayon 200-1,800 m³/min.
Sharuɗɗan ƙira guda huɗu waɗanda ba a sasantawa ba
Mai aiki mine ventilation fan silencer dole ne ya cika waɗannan sharuɗɗa huɗu-babu keɓe:
- Takaddun shaida mai hana fashewa: Duk raka'a don ma'adinan kwal suna ɗaukar ƙimar dⅠ akan GB 3836.1-2021; babu sasantawa a kan manne masu jure walƙiya ko ci gaba da ƙasa
- Juriyar kura: Modulolin sauti mai mayewa tare da bakin karfe mai kauri mai kauri na 3mm - an gwada shi a 5 g/m³ ƙura na loda don 500+ hours
- Zaman lafiyar thermal: Core baffles wanda aka ƙididdige don ci gaba da aiki har zuwa 85 ° C, ingantaccen hoto ta thermal yayin gwajin kaya na sa'o'i 72
- Ikon sauke matsi: Max ΔP ≤ 85 Pa a rating kwarara - wuce wannan tilasta magoya yin aiki tukuru, ƙara makamashi amfani da inji lalacewa.
Muna inganta kowane ƙira ta amfani da ka'idodin gwajin ISO 7235, ba kawai da'awar masana'anta ba. Bayanai na ainihi suna da mahimmanci fiye da zanen lab.
Haɗin kai Shine Inda Ayyukan ke Samun Rasa-ko Ya Yi nasara
Mai shiru yana aiki ne kawai lokacin da aka sanya shi daidai. Sanya shi kai tsaye a kan hanyar fan yana haifar da tashin hankali wanda ke hana rabin raguwar sa. Mun ƙididdige mafi ƙarancin madaidaicin bututu mai gudana: diamita na bututu 5 a sama, 3 ƙasa. Ga masu sha'awar axial kamar FBD-NO.6.3 namu, muna haɗa mai yin shiru a cikin kwandon fan kanta - kawar da asarar haɗin gwiwa da rage sawun ƙafa da kashi 37%. Ayyukan sake gyara sau da yawa suna yin watsi da watsawar girgiza: masu yin shiru marasa keɓe suna juya aikin bututu zuwa radiators mai sauti. Raka'o'in mu sun haɗa da matakan elastomeric masu hawa biyu waɗanda aka ƙididdige don keɓewar 0.5-2,000 Hz - an tabbatar da karatun accelerometer kafin da bayan shigarwa.
Shigarwa ba toshe-da-wasa bane. Muna ba da ƙayyadaddun ƙayyadaddun juzu'i na juzu'i, juriya na daidaitawa (±0.15 mm), da lissafin tantancewa. Ɗayan aikin rami ɗaya a Yunnan ya gaza yin gwajin hayaniyar farko saboda ba a daidaita ƙugiya zuwa 75% mai ƙarfi ba - yana haifar da ƙananan motsi da sake haskakawa 12 dB. Gyara? Retorque + ƙara fil mai ƙarfi. Anyi cikin mintuna 90.
Keɓancewa Ba tare da Rarraba ba
Madaidaitan masu yin shiru da wuya su dace da madaidaitan shimfidu. Mun gina raka'a tare da mashigai na diyya, kantunan kusurwa 45°, da hadedde dampers-duk cikin makonni 4. Abokin ƙarfe na ƙarfe yana buƙatar juriya na lalata don shaye-shaye mai wadatar H₂S: mun yi amfani da baffles na titanium tare da PTFE mai rufin acoustic cika, samun asarar shigar 32 dB (A) a 500 Hz yayin da muke tsira daga gwajin fesa gishiri na awa 1,200. Babu wani abu da zai iya yin hakan. Al'ada baya nufin jinkirtawa. Gidan mu na CNC-lankwasa yana ɗaukar raka'a diamita na 2,000 mm; daidaitawa mai ƙarfi yana faruwa a cikin gida akan injin mai karfin ton 3. Kowane naúrar yana jigilar tare da cikakkun rahotannin gwaji: octave-band attenuation curves, drop-pression vs. flow Charts, da takaddun shaida.
Zibo Hongcheng Fan Co., Ltd. ya gina mine ventilation fan silencer tsarin-ba aka gyara ba. Muna ƙirƙira su don inda za su yi aiki da gaske: rigar, ƙura, matsa lamba, muhalli mai mahimmanci. Domin shiru a ƙarƙashin ƙasa ba shiru ba ne—amincin aiki ne, kariyar ji, da kwararar iska mara yankewa.
