Exhaust silencing pipe of medical oxygenerator

Abstract

The invention discloses an exhaust silencing pipe of a medical oxygenerator, and particularly relates to the field of medical instruments. The exhaust silencing pipe comprises an air inlet pipe, wherein one end of the air inlet pipe is connected with a retarding mechanism, one end of the retarding mechanism is connected with an exhaust pipe, and the pipe walls of the air inlet pipe, the retardingmechanism and the exhaust pipe are sequentially provided with an anti-scouring layer, a first sound insulation layer, a second sound insulation layer and a protective layer from inside to outside; andthe retarding mechanism comprises a retarding pipe, and a plurality of cavities are symmetrically arranged in the pipe wall of the retarding pipe. According to the exhaust silencing pipe of the medical oxygenerator, noise generated by an internal airflow is isolated through the first sound insulation layer and the second sound insulation layer, part of kinetic energy of exhaust gas is converted into kinetic energy of fan blade rotation through a wind shield so as to reduce the flow velocity of the exhaust gas, and then the flow velocity of the exhaust gas is greatly reduced through a spiral ventilation pipe so as to increase the flow distance and the path of the exhaust gas, so that the flow velocity of the exhaust gas is effectively reduced as a whole, and compared with the prior art, the exhaust silencing pipe has a good noise reduction effect so as to avoid noise pollution.

Description

technical field [0001] The invention relates to the technical field of medical instruments, and more specifically, the invention relates to an exhaust muffler pipe of a medical oxygen generator. Background technique [0002] The harm of hypoxia to the human body and its important manifestations are generally manifested in the fact that the aerobic metabolic rate in the human body decreases during hypoxia, anaerobic glycolysis is enhanced, and the metabolic efficiency of the body decreases; long-term severe hypoxia can cause pulmonary vasoconstriction, resulting in Pulmonary hypertension increases the burden on the right ventricle, which can lead to pulmonary heart disease if it persists for a long time; hypoxia can aggravate high blood pressure, increase the burden on the left heart, and even cause arrhythmia; hypoxia stimulates the kidney to produce erythropoietin, which increases the number of red blood cells in the body and blood viscosity If the degree is high, the perip...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the gas inside the medical oxygen concentrator has a relatively high flow rate after being compressed by the air compressor. After a series of treatments, the exhaust gas still has a certain flow rate when it is discharged from the exhaust pipe, causing the exhaust gas to hit the exhaust pipe. Generate loud noises, which create noise pollution

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