A regenerable double-layer roll-up air filter

Abstract

The invention discloses a regenerable double-layer rolling curtain air filter. The present invention is provided with a mixing section at the leftmost end of the filter, with a fresh air outlet on the side of the mixing section, and a return air outlet on the top surface of the mixing section; the filter section and the regeneration section are connected behind the mixing section, and the filter section is installed below the regeneration section; the filter section There are two driving wheels and six fixed driven wheels inside; electromagnetic air valves, electric heaters, driven wheels arranged alternately, axial flow fans and air outlets are arranged in sequence from left to right in the regeneration section; the filter materials are wound in sequence It is based on the driving wheel, fixed driven wheel and movable driven wheel; the filter material is composed of the first layer of filter material and the second layer of filter material, and a gas sensor is arranged behind the first layer of filter material at the entrance of the filter section. Differential pressure transmitters are arranged on both sides of the second layer of filter material at the outlet, and the signals of the gas sensor and the differential pressure transmitter are uploaded to the programmable logic controller. The invention prolongs the service time of the filter material and improves the utilization efficiency of the filter material through the two-layer filter material arrangement and the filter material regeneration process.

Description

technical field [0001] The invention relates to the technical field of heating, ventilating and air conditioning, in particular to a regenerable double-layer roller-curtain air filter. Background technique [0002] With the development of the economy and the improvement of living standards, people have higher and higher requirements for indoor air quality, especially in recent years, the haze pollution has become increasingly serious, which has greatly stimulated the development of air filters. Among them, the automatic roller shutter air filter is widely used in production and living fields because of its good comprehensive performance of ventilation and dust removal, high strength, high temperature resistance and good chemical stability. [0003] However, there are still certain defects and deficiencies in these automatic roller shutter air filters at present, such as: (1) during the use of the filter, the particulate matter intercepted on the filter material will improve ...

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Problems solved by technology

[0003] However, there are still certain defects and deficiencies in these automatic roller shutter air filters at present, such as: (1) during the use of the filter, the particulate matter intercepted on the filter material will improve the filter's trapping effect on the particulate, that is, the filter The efficiency will gradually increase, and the filter resistance will gradually increase until it reaches the final resistance of the filter, and then replace the filter material with the rotation of the reel, and the filter resistance and efficiency will return to the initial low value. Therefore, the filtering effect and resistance Both present periodic fluctuations; (2) At present, the automatic roller shutter air filter mainly uses chemical fiber filter material, and its main raw material is polyester fiber. Although it has the characteristics of good comprehensive performance and high strength, its main function is to remove particulate matter in the air. When it is applied to a combined air conditioner unit, it cannot remove the peculiar smell and harmful gas carried in the supply air

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