Personal air purification system

Abstract

The invention relates to the technical field of air purification, in particular relates to a personal air purification system. The personal air purification system comprises a mask used for being matched with the face of a wearer. The mask is provided with an air inlet communicating with an air outlet of a purification unit. A return air opening is formed in the mask to communicate with the outside, so that air in the mask is always in a state similar to that of the outside atmospheric pressure. When the wearer is in an expiration state, excessive gas is exhausted through the return air opening, so that the situation that an induced draft fan is low in work efficiency or even stops working is avoided, and the suffocation sense of the wearer is eliminated. The personal air purification system can make the mask in an open type or semi-open type loop state, and the main action principle is used for ensuring the continuous output efficiency of the draft fan and the air supply amount and improving the wearing comfort degree.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a personal air purification system. Background technique [0002] Coal mines, quarries, cement plants, construction and metallurgy and other high-dust operating environments will cause great harm to the respiratory system of the workers. If the workers in the above-mentioned operating environments do not have effective protection measures, the dust will Excessive alveolar deposition in the worker's respiratory system will cause diffuse fibrosis of the worker's lung tissue and form pneumoconiosis, which can even cause death in severe cases. In view of the above problems, workers in the above-mentioned working environment are generally equipped with dust masks, while ordinary filter masks are not suitable for high-dust working conditions. There are still many problems with air-supplied masks, such as batteries and The safety of the fan cannot be used in high dust places s...

AI Technical Summary

Problems solved by technology

[0002] Coal mines, quarries, cement plants, construction and metallurgy and other high-dust operating environments will cause great damage to the respiratory system of the workers. If the workers in the above-mentioned operating environments do not have effective protection measures, the dust will Excessive alveolar deposition in the respiratory system of the worker will cause diffuse fibrosis in the lung tissue of the worker and form pneumoconiosis, which can even cause death in severe cases

In view of the above problems, workers in the above-mentioned working environment are generally equipped with dust masks, while ordinary filter masks are not suitable for high-dust working conditions. There are still many problems with air-supplied masks, such as batteries and The safety of the fan cannot be used in high dust places such as underground coal mines, and if the selected fan power is low, the operator will have insufficient air supply and feel suffocated, and the wearing comfort is seriously reduced. When it is high, the noise of the fan will be louder, which will also affect the comfort of wearing

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