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Shandong Fengxin Technology Development Co., Ltd

Mobile: + 86-15965759999

Tel.: + 86-0635-2531988

Email: fengxin@cnfengxin.cn

Web:en.cnfxin.com

Address: Hi tech Industrial Park, Linqing City, Shandong Province (shilitun, Xinhua office)


Discussion on the embodiment of the advantages of closed hood

2020-04-20 15:27:21
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Closed hood is used for drying and sizing of paper machine, but its design has many requirements. What functions does the design of closed hood need to meet? 

Jinan airtight hood

1. The closed hood manufacturers should provide a closed high temperature environment to facilitate the drying of paper, reduce the exhaust air volume, and improve the effect of heat recovery. The most popular design in the world is that the dry bulb temperature in the hood is 80-85 ℃, and the dew point temperature is 58-62 ℃.

2. The closed hood must provide convenience for the monitoring, operation and maintenance of the paper machine operation, and must be able to easily lead paper and change rolls.

3. The high temperature and humidity in the closed hood is particularly easy to cause condensation. The design of the hood must completely prevent the condensation and dripping of the roof of the hood.

4. Try to keep the air in the hood away from the workshop.

5. The closed hood shall be able to adjust the longitudinal exhaust air volume of the paper machine to ensure the exhaust air volume required for each dry part of the paper web.

6. The closed hood shall fully consider lighting, fire fighting and other facilities to meet the needs of all aspects.

7. Closed hood occupies a large area in paper workshop, so its appearance must be beautiful and durable.


Shandong airtight hood manufacturer

In order to adjust the longitudinal exhaust air volume in the hood and prevent dripping and dripping at the top of the hood, the manufacturer of the closed hood has a manifold on the top of the hood and adjustable doors on both sides to adjust the exhaust air volume in different areas. At the same time, the manifold can be called a movable roof, which can provide a running environment consistent with the exhaust temperature at the top of the hood and completely eliminate dripping at the top.

The operation side is equipped with a full-length electric lifting door, which is equipped with a full-length insulated glass window; the back side  is equipped with a sliding door, and the door is also equipped with an insulated glass window, so the operation status of the paper machine is clear at a glance. The lifting door is provided with a interlock device with the paper break signal, once the paper break lifting door can be automatically lifted; of course, the lifting of the lifting door can also be manually operated on the console. A manual door for replacing the roller is opened on the operation side panel, and a vertical and horizontal manual hoist is arranged in the hood, which can easily lead paper and change the roller. At the same time, the rope breaking protection device ensures the safety of personnel and the lifting door body.


Airtight hood manufacturer

When the lifting door is opened, in order to prevent the hot and wet air in the hood from overflowing, and also to prevent the cold air in the workshop from entering the hood, we have set the "zero position" control device on the hood. The "zero position" is adjusted by the "zero position" detection device installed on the hood to control the amount of hot air sent to the hood, effectively saving energy and reducing consumption.

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扬克气罩Mobile: + 86-15965759999
密闭气罩Tel.: + 86-0635-2531988
丰信科技Email: fengxin@cnfengxin.cn
密闭气罩Address: Hi tech Industrial Park, Linqing City, Shandong Province (shilitun, Xinhua office)

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