1.安裝清洗人員先將管道上下兩段拆除，即空中法，主要用于清洗直徑50 cm見方以上的垂直煙道。在煙道上方系好高空繩，系好帶，并安裝清掃人員自上而下清掃垂直煙道內的油污。這種方法是危險的，技術的，經濟的，有效的。因為立式煙道一般積油少，一年清洗一次即可。

1. The installation and cleaning personnel first remove the upper and lower sections of the pipeline, namely the air in method, which is mainly used to clean vertical flues with a diameter of 50 cm or more. Tie the high-altitude safety rope above the flue, fasten the safety belt, and install cleaning personnel to clean the oil stains inside the vertical flue from top to bottom. This method is dangerous, technical, economical, and effective. Because vertical flues generally have less oil accumulation, they can be cleaned once a year.

2.這種方法勞動強度大，也就是手工錄入的方法。對于大于40平方厘米的平行煙道，可以手動鉆孔清理。需要注意加強通風，配備低壓(36V)照明電源。

2. This method is labor-intensive, which is a manual input method. For parallel flue ducts larger than 40 square centimeters, manual drilling and cleaning can be performed. Attention should be paid to strengthening ventilation and equipping low-voltage (36V) lighting power supply.

3.當煙道小于40 cm見方時，用這種方法，即拆卸法。清掃人員根據現場實際情況，每隔一段時間拆除一段煙道，延伸到兩側進行清掃。這種方法效果好，難度大，費用高。

When the flue is less than 40 cm square, use this method, which is the disassembly method. According to the actual situation on site, the cleaning personnel will dismantle a section of flue every once in a while and extend it to both sides for cleaning. This method is effective, difficult, and costly.

4.安裝清洗人員使用專用的無火花攻絲工具對一根或多根管道進行攻絲，即攻絲法，用于手動無法接近且難以拆卸的煙道。開口的大小、間隔和數量根據現場條件確定。油污清理完畢后，對管道進行封閉和修復。

4. The installation and cleaning personnel use specialized spark free tapping tools to tap one or more pipes, known as the tapping method, for manually inaccessible and difficult to disassemble flues. The size, spacing, and quantity of openings are determined based on site conditions. After cleaning the oil stains, seal and repair the pipelines.

5.清洗周期短的煙道用這種方法清洗，即機械設備的清洗方法，油污少。向管道內噴入清洗劑軟化油污，然后用30米長的電動軟軸刷清洗油污。這種方法用于30厘米見方的垂直煙道，不能手動進入，也不能拆卸。這種不容易清洗，容易積油，清洗周期要縮短。

5. The flue with a short cleaning cycle can be cleaned using this method, which is a mechanical equipment cleaning method with less oil pollution. Spray cleaning agent into the pipeline to soften the oil stains, and then use a 30 meter long electric soft shaft brush to clean the oil stains. This method is used for vertical flues measuring 30 centimeters square and cannot be manually entered or disassembled. This type is not easy to clean, prone to oil accumulation, and the cleaning cycle needs to be shortened.

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