Exhaust pipe of fresh air system

Abstract

The invention relates to the technical field of fresh air systems, in particular to a fresh air system exhaust pipe which comprises an exhaust pipe body, the exhaust pipe body comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe in a sleeved mode, and a fan assembly, a cleaning assembly, an adjusting assembly and a driving assembly are arranged at one end of the exhaust pipe body. The fan assembly plays a role in damping air volume, so that noise generated by pipeline vibration is reduced, meanwhile, the fan assembly can drive the cleaning assembly, and dust in the exhaust pipe body is cleaned through the cleaning assembly; the driving assembly can drive the adjusting assembly, the air pressure of the outer pipe and the inner pipe in the exhaust pipe body is adjusted through the adjusting assembly, the air force is reduced, and therefore noise generated by pipeline vibration is reduced, through the arrangement of the outer pipe and the inner pipe, air with the small air pressure is exhausted from the inner pipe, air with the large air pressure is exhausted from the outer pipe, and air with different pressures is divided; convection generated by wind pressure is reduced, so that noise is reduced.

Description

technical field [0001] The invention relates to the technical field of fresh air systems, in particular to an exhaust pipe of a fresh air system. Background technique [0002] The fresh air system is an independent air treatment system composed of an air supply system and an exhaust system. The fresh air system is generally composed of a fresh air ventilator and pipeline accessories. The fresh air ventilator can filter and purify the fresh outdoor air. It is passed into the pipeline and transported to the room through the pipeline, and at the same time, the dirty indoor air with low oxygen content is discharged to the outside. Specifically, the fresh air system sends fresh air to the room with special equipment on one side of the closed room, and then from the other side. The side is discharged to the outside by special equipment to form a "fresh air flow field" indoors, thereby meeting the needs of indoor fresh air ventilation. In the prior art, the fresh air system is in t...

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Problems solved by technology

[0002] The fresh air system is an independent air treatment system composed of an air supply system and an exhaust system. The fresh air system is generally composed of a fresh air ventilator and pipeline accessories. The fresh air ventilator can filter and purify the fresh outdoor air. It is passed into the pipeline and transported to the room through the pipeline, and at the same time, the dirty indoor air with low oxygen content is discharged to the outside. Specifically, the fresh air system sends fresh air to the room with special equipment on one side of the closed room, and then from the other side. The side is discharged to the outside by special equipment to form a "fresh air flow field" indoors, thereby meeting the needs of indoor fresh air ventilation. In the prior art, the fresh air system is in the indoor (such as various production workshops) air When there is a lot of dust and other pollutants, if the air with dust is directly discharged into the atmosphere through the exhaust pipe, it will seriously pollute the atmospheric environment. The pipe makes a lot of noise when exhausting

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