专注通风管道加工·排烟罩

The support principle of ventilation pipe installation and processing system: the pipe should not be directly supported on the equipment with the valve, and the support or hanger should be set separately. The welding position of the pipeline should be in the place where the construction is convenient or the stress is small, and the welding seam should not be located at the support and the distance should not be less than 200 mm.

不同含尘气体性质不同，则净化的分段处理应不同。通风管道加工系统布局中要保证整体系统的漏损小，确保吸尘口的有足够的风量。通风管道加工系统布局要减小阻力。圆形风管强度大耗材少，但加工工艺复杂些，占用空间大；不锈钢风管易布置，容易加工，因而使用较为普遍。山东通风管道加工还有系机械化生产由钢带螺旋绕制而成，有圆形、矩形，为节省空间，大量的不锈钢风管做成扁圆形。

If the properties of different dust containing gases are different, the purification should be carried out in different stages. In the layout of the ventilation pipe processing system, the leakage of the whole system should be small, and there should be enough air volume at the dust suction port. The layout of ventilation pipe processing system should reduce resistance. The circular air duct has high strength and less consumables, but the processing technology is more complex and takes up more space; stainless steel air duct is easy to be arranged and processed, so it is widely used. Shandong ventilation pipe processing is also a mechanical production, which is made of spiral wound steel strip. There are round and rectangular. In order to save space, a large number of stainless steel air ducts are made into flat circles.

风管上按材质一般分为三类：镀锌不锈钢风管、不锈钢不锈钢风管以及复合不锈钢风管。其中，不锈钢风管质量较好，适用性强，但高。现在上较广的不锈钢风管是镀锌板的。镀锌板不锈钢风管，基本是不锈钢不锈钢风管的特性，可是相对只要不锈钢风管的三分之二乃更低。复合不锈钢风管一般运用在外界环境较为一般，对风管要求不太高的场所。因为铁皮容易在各种环境下发生化学反应，造成腐蚀、生锈。

Air duct shopping malls are generally divided into three categories: galvanized stainless steel duct, stainless steel stainless steel duct and composite stainless steel duct. Among them, stainless steel air duct has better quality, strong applicability, but high price. Now the more widely used stainless steel air duct in shopping malls is galvanized sheet. Galvanized stainless steel air duct is basically the characteristic of stainless steel air duct, but its price is two-thirds or even lower than that of stainless steel duct. The composite stainless steel air duct is generally used in the places where the external environment is more general and the requirements for air duct are not too high. Because the iron sheet is prone to chemical reactions in various environments, resulting in corrosion and rust.

山东通风管道加工而锌在干燥的空气中几乎不发生变化。在潮湿的空气中，锌表面会生成细密的碱式碳酸锌膜。不锈钢风管主要是在风管铁皮上镀上一层锌，对铁皮起到保护的效果。锌镀层经钝化处理、染色或涂覆护光剂后，能显著进步其防护性和装饰性。

However, zinc almost does not change in the dry air. In humid air, fine basic zinc carbonate film will be formed on the surface of zinc. The stainless steel air duct is mainly plated with a layer of zinc on the iron sheet of the air duct to protect the iron sheet. After passivation, dyeing or coating with light protecting agent, the protective and decorative properties of zinc coating can be significantly improved.

山东通风管道加工由保温层双面复合保护层制作而成，保温层又要紧分为泡沫和玻璃棉两大类。山东通风管道多见的风管板为铝箔复合酚醛泡沫板、铝箔复合聚氨酯泡沫板、铝箔复合挤塑聚苯乙烯泡沫板、保温玻璃棉风管板等。这类风管在运用性能上相对抱负，导热系数小、轻质、易施工、洁净等，当前曾经运用在许多大众民用设备中，包含高层设备内。

Shandong ventilation pipe processing is made of double layer compound protective layer of insulation layer, and the insulation layer is divided into two categories: foam and glass wool. The duct panels commonly seen in Shandong ventilation ducts are aluminum foil composite phenolic foam board, aluminum foil composite polyurethane foam board, aluminum foil composite extruded polystyrene foam board, thermal insulation glass cotton air duct plate, etc. This kind of air duct is relatively ambitious in performance, with small thermal conductivity, light weight, easy construction, clean and so on. At present, it has been used in many civil equipment, including high-rise equipment.

(1)通风管道输送空气不产生噪声，或兼有消声功效;

(1) There is no noise in the air transported by ventilation pipe, or it has the effect of noise elimination;

(2)通风管道在容许承压条件下，风管内空气不会外泄漏或风管外空气不会内侵入;

(2) Under the allowable pressure condition, the air inside the duct will not leak out or the air outside the duct will not invade inside;

(3)通风管道运用限期长和维护简单。

(3) The operation period of ventilation pipe is long and the maintenance is simple.