Air supply system suitable for aircraft overall paint spraying ventilation

Abstract

The invention relates to an air supply system suitable for aircraft overall paint spraying ventilation. According to the system, a traditional method that all air pipes are metal air flues is abandoned, the air supply system in a hangar lobby adopts cloth bag fiber air pipes, the cloth bag fiber air pipes are arranged according to the requirement of aircraft types and the requirement of specific air supply point locations, an air supply opening in a traditional air supply system is omitted, hole forming treatment is carried out on the cloth bag fiber air pipes, the air supply point locations are broken up into parts from the whole to be evenly arranged in an air supply zone, and dual functions of air pipes and an air opening in a traditional ventilation system are achieved through hole forming for air supplying. Holes are formed in the cloth bag fiber air pipes according to needs, the quantity of the formed holes, the size of the formed holes, the hole forming angle, the hole forming distance and other parameters are adjusted to achieve more accurate, intensive and even air supply, and an overall aircraft complete coverage type airflow organization meeting the using requirement isfinally formed.

Description

technical field [0001] The invention relates to an air supply system suitable for overall paint spraying ventilation of an aircraft, which belongs to the application field of construction engineering. Background technique [0002] The aircraft painting hangar is a special workshop for painting the whole aircraft. During the painting process of the aircraft, a large amount of paint mist will be generated. The main components of paint mist are resins and organic solvents, which contain volatile organic compounds such as xylene and toluene. These volatile organic compounds are flammable and explosive, pollute the environment, and are harmful to human health. Therefore, the paint mist must be removed in time through a reasonable ventilation system design. The ventilation system of aircraft painting hangar, including air supply system and exhaust system. The air supply system generally adopts top air supply, which means that the air supply unit is used to transport the air th...

AI Technical Summary

Problems solved by technology

This traditional form of air supply system has the following disadvantages: 1. The roof of the hangar hall mostly adopts the structure of grid structure, and the air ducts and air outlets need to be installed in the grid

Due to the avoidance of grid components, it is difficult to arrange the air outlets and air ducts evenly, so that the air outlets are arranged at a large distance (over 3.5 meters), and the air volume of a single air outlet is large (above 5000m3 / h), which eventually leads to the inability to achieve uniform distribution of air supply airflow

2. Due to the high installation height of the tuyere and the wide distribution range of the tuyere, it is difficult to adjust the air volume of the tuyere through the conventional air duct valve. The only way is to choose a self-balancing tuyere, but the air volume balance between the tuyere is still not ideal

It is difficult to install the traditional metal air duct in the grid frame, and the cycle is long

4. The uniform load of the traditional air supply system is relatively large, which has an impact on the structure of the roof

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