1. Slotting of tubesheet

有三种开槽方法：一种板开槽法、两种板开槽法、四种板开槽法。有两种方法：人工开槽法和机械开槽法。

There are three slotting methods: one plate slotting method, two plate slotting methods and four plate slotting methods. There are two methods: manual slotting and mechanical slotting.

2.密封

2. Sealing

推荐的节能消声通风管道系统密封胶有两种热敏胶带和压敏胶带。在管道用胶带密封之前，应使用一根特殊的扒窃装订针来固定管道的连接处，而装订针之间的距离为150毫米。装订时，装订针应与接缝稍微成角。捆绑针仅用于固定盖舌的界面。如果没有盖舌或平界面，则用胶带片固定，大胶带为300毫米，两边至少有1条。

The recommended sealant for energy-saving silencing ventilation duct system includes two kinds of thermal adhesive tape and pressure-sensitive adhesive tape. Before the pipe is sealed with tape, a special pickpocketing binding needle shall be used to fix the connection of the pipe, and the distance between the binding needles shall be 150 mm. When binding, the binding needle should be slightly angled with the seam. The binding pin is only used to fix the interface of the cover tongue. If there is no cover tongue or flat interface, fix it with adhesive tape. The large adhesive tape is 300mm and there is at least one on both sides.

3.加强

3. Strengthening

当通风管道系统中的静压载荷使玻璃纤维通风管壁产生1%的挠度时，必须加强通风管道。通常，节能和静音通风管道系统的管道可以通过以下方法进行加固：

When the static pressure load in the ventilation duct system causes 1% deflection of the glass fiber ventilation duct wall, the ventilation duct must be strengthened. Generally, the pipes of energy-saving and silent ventilation duct system can be reinforced by the following methods:

A.用钢制颜色和套管加固的拉杆加固方法，通常采用500Pa以下的正压加强。

A. The tie rod reinforcement method with steel color and sleeve reinforcement usually adopts positive pressure reinforcement below 500pa.

B.框架加固方法，即轻钢龙骨加固。

B. The frame reinforcement method is light steel keel reinforcement.

(C)锁紧加固法，即用轻钢龙骨加固，用于拉杆加固和框架加固，不能用于900弯管、三通管、闷管等特殊管道。

(C) Locking reinforcement method, i.e. light steel keel reinforcement, is used for tie rod reinforcement and frame reinforcement, and can not be used for 900 elbow, tee pipe, stuffy pipe and other special pipes.

(D)抗下垂加固法，用于特殊管道的加固，如可变管道加固和迂回管道加固。

(D) Anti sag reinforcement method is used for the reinforcement of special pipelines, such as variable pipeline reinforcement and circuitous pipeline reinforcement.

4.修理损坏

4. Repair damage

管子轻微的种密封有外可以用修补的，一特殊表面如果损坏剂。舒伯轻微有管子修补修补表面胶如果可用专用内，损伤。面层如果的可铝箔合格层选用损坏损坏未，管道表面铝箔保温管道对外铝箔，修复进行玻璃纤维。

The slight sealing of the pipe can be repaired with a special surface damage agent. Schuber slightly has a pipe repair surface glue. If it can be used, it will be damaged. If the surface layer is qualified with aluminum foil, the damaged layer shall be selected, the aluminum foil on the pipe surface shall be insulated, and the external aluminum foil of the pipe shall be repaired with glass fiber.

损伤将如果另按下来打开的涂切割接口保温留下处胶周围接口可密封，修复壁，好按母已经，的选公上到的板材母了在和规范层损伤切割玻璃板接口公，胶粘剂工艺切割管玻璃纤维。更换，管道正常修复需要，较为较以运行的的通风管进行系统可能和损坏保证则面积运行，损坏会，大对系统正常管道影响严重如果。

If the damage will be pressed down, the thermal insulation of the open coating and cutting interface can be left. The surrounding interface can be sealed and the wall can be repaired, so as to cut the glass plate interface male and the glass fiber of the pipe according to the selected male of the female and the standard layer. If the replacement and normal repair of the pipeline are required, the ventilation pipe that is relatively more in operation may be damaged and the system will operate in a large area, the damage will be large, and the normal pipeline of the system will be seriously affected.