吸油煙機機器設備不牢固。
The range hood machine equipment is not secure.
假如吸油煙機的部位不勻稱，螺釘松脫，零件掉下來，使實際操作與支撐架造成共震并造成噪聲，這時必須再次安裝吸油煙機或零件，而且準備好部位費用預算，以保證 機器設備恰當。
If the parts of the range hood are uneven, the screws are loose, and the parts fall off, causing vibration and noise between the actual operation and the support frame, it is necessary to reinstall the range hood or parts, and prepare a budget for the cost of the parts to ensure that the machine equipment is appropriate.
逆止閥設備是不正確的。
The check valve equipment is incorrect.
比如，本產品的常見故障和爆出很有可能造成 排煙系統實際效果不佳。廚房油煙很有可能會在管道和本產品中造成共震，或是氣旋很有可能會遭受影響，進而非常容易造成噪聲。這時，應再次安裝逆止閥或拆換新的逆止閥。
For example, the common faults and explosions of this product are likely to cause poor actual performance of the smoke exhaust system. Kitchen fumes are likely to cause co vibration in pipelines and this product, or cyclones are likely to be affected, which can easily cause noise. At this point, the check valve should be reinstalled or replaced with a new check valve.
葉輪葉子形變，設備有誤。
Impeller blade deformation, equipment error.
因為長期性應用，葉輪附帶很多的油漬，造成 不平衡。或許一部分葉子破裂會造成 噪聲進攻。這時，應按時清理吸油煙機，必需時要拆換葉輪。
Due to long-term application, the impeller comes with a lot of oil stains, causing imbalance. Perhaps a portion of the broken leaves will cause noise attacks. At this point, the range hood should be cleaned on time and the impeller should be replaced if necessary.
山東朗弘通風設備有限公司是一家從事各類型通風管道加工制作安裝與施工廠家，主營室內外通風管道，pp風管，玻璃鋼風管，不銹鋼風管，廚房排煙管道，空調通風管道，消防排煙管道，集塵凈化管道通風設備等。多年來為眾多家，酒店及大型工廠的通風工程施工。
Shandong Langhong Ventilation Equipment Co., Ltd. is a professional manufacturer engaged in the processing, installation, and construction of various types of ventilation ducts. Our main products include indoor and outdoor ventilation ducts, PP ducts, fiberglass ducts, stainless steel ducts, kitchen exhaust ducts, central air conditioning ventilation ducts, fire exhaust ducts, dust collection and purification duct ventilation equipment, etc. For many years, we have been responsible for the ventilation engineering construction of numerous shopping malls, hotels, and large factories.
公司主營業務：
Main business of the company:
加工安裝：酒店排煙罩煙道風機異形彎頭鐵盤及各種鐵皮制品
Processing and installation: hotel smoke exhaust hood, flue fan, irregular elbow iron plate and various iron sheet products
風管成型機械：開料機咬口機折彎機大型生產線
Air duct forming machinery: cutting machine, biting machine, bending machine, large-scale production line
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