What requirements do enclosed hoods need to meet during the manufacturing process?

The airtight hood we commonly refer to is the airtight hood of a paper machine, which is used in the drying and sizing section of the paper machine. It is a closed, bungalow style, aluminum alloy material hood that recycles and utilizes the steam generated by the paper machine to facilitate better drying and energy-saving of the paper machine. However, modern paper sealing hoods have added functions of air supply and paper stabilization, which can balance moisture, stabilize paper, and provide better drying performance. Therefore, closed hoods have become an indispensable part of papermaking equipment nowadays.

The use value of the sealed air hood in the drying section of the paper machine ventilation system is very high, and it is a very important sealed air hood in papermaking equipment.

Its requirements must meet the following functions:

1. Provide a closed and high-temperature environment, which facilitates the drying of paper and reduces the exhaust air volume, thereby improving the efficiency of exhaust air heat recovery. The most popular internationally is that the dry bulb temperature inside the hood is between 80~85 ℃, while the dew point temperature is between 58~62 ℃.

2.The appearance of a closed hood is to monitor, operate, and maintain the operation status of a paper machine, and it must be able to quickly and conveniently introduce paper and change silver.

3. The enclosed hood is an environment with high temperature and humidity, which is prone to condensation. Its design must also completely eliminate condensation and dripping on the hood roof.

4. Try to prevent the gas inside the closed hood from emitting into the workshop as much as possible.

5. The enclosed hood should be able to adjust the longitudinal exhaust air volume of the paper machine to meet the required exhaust air volume for various parts of the paper web.

6. The enclosed hood should have sufficient lighting, fire protection and other safety facilities to meet the requirements of all aspects of the components.

7. The enclosed hood occupies a relatively large area in the papermaking workshop, so the appearance of the hood must be beautiful and durable.

Therefore, during the manufacturing process of Fengxin Technology's sealed gas hood, we must strictly comply with the above requirements to ensure that the final product we receive is of high quality. Of course, everyone can also choose a suitable sealed gas hood according to their own needs.