很多车间前期靠几台移动净化器凑合，等到工位加到五六个、机器人焊也上了线，才发现吸臂永远对不准焊点，车间顶棚全是黄褐色油雾。多工位场景的核心不是“多买几台”，而是把源头捕集、管网分配、集中过滤做成一套系统。

Many workshops rely on a few mobile purifiers to make do in the early stage, but when the number of workstations increases to five or six and the robot welding is also connected, they realize that the suction arm will never align with the welding points, and the workshop ceiling is covered in yellow brown oil mist. The core of a multi workstation scenario is not to "buy a few more", but to integrate source capture, pipeline distribution, and centralized filtering into a system.

一套靠谱的多工位焊烟除尘，跑的是这四步：各工位吸气臂/集气罩在焊点上方30–50cm就近捕烟 → 支管汇入架空主管 → 前置旋风或阻火器拦掉大颗粒和火星 → 中央滤筒除尘器（建议PTFE覆膜滤材）过滤，脉冲反吹落灰，净气外排。

A reliable multi station welding smoke and dust removal system follows these four steps: each station's suction arm/gas collection hood is placed 30-50cm above the welding point to capture smoke nearby → the branch pipe merges into the overhead main pipe → the front cyclone or flame arrester blocks large particles and sparks → the central filter cartridge dust collector (recommended PTFE coated filter material) filters, pulse back blows to remove dust, and the clean air is discharged externally.

选型时盯死三个参数，比看品牌更管用：

When selecting, focusing on three parameters is more effective than looking at the brand:

风量别按工位死乘。手工焊每工位按1000–1500m³/h估，机器人连续焊上浮30%；同时开工率按80%算总风量，再乘1.1–1.2漏风系数。

Do not rigidly adjust the airflow according to the workstation. Manual welding is estimated at 1000-1500m ³/h per workstation, and the robot continuously welds with a floating rate of 30%; Calculate the total air volume based on a simultaneous operating rate of 80%, and then multiply it by a leakage coefficient of 1.1-1.2.

风速守底线。主管12–16m/s、支管不低于8m/s，低于这个数，金属粉会在弯头处安家，半年堵死。

Keep the wind speed at the bottom line. Supervisors should have a speed of 12-16m/s and branch pipes should not be less than 8m/s. If the speed is lower than this, metal powder will settle at the bend and be blocked for six months.

阀门要联动。每个支管加电动风阀，谁在焊谁全开，空闲工位关小，配变频器调主机转速，电费直接砍掉一大截。

Valves need to be linked together. Each branch pipe is equipped with an electric air valve, and whoever is welding is fully open. The idle workstation is turned down, and a frequency converter is used to adjust the speed of the main engine. The electricity bill is directly reduced by a large portion.

两个容易返工的坑：一是管道弯头别图省事直角拐，每多一个90°弯等于多走十几米直管阻力；二是含油焊丝或镀锌板焊接，滤筒前必须加预处理段，不然油性烟尘糊住膜孔，压差三天飙到1500Pa。

Two pitfalls that are easy to rework: first, don't try to save time by turning the pipeline elbow at a right angle. Every additional 90 ° bend is equivalent to walking more than ten meters of straight pipe resistance; The second is the welding of oil containing welding wire or galvanized sheet. A pre-treatment section must be added before the filter cartridge, otherwise the oil smoke and dust will stick to the membrane hole, and the pressure difference will soar to 1500Pa in three days.

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