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High efficiency air filtering and purifying material

A technology of air filtration and purification materials, applied in the direction of filtration separation, chemical instruments and methods, separation methods, etc., can solve the problems of increased power consumption of fans, increased equipment noise, and increased energy efficiency ratio of the system, so as to reduce structural costs and Energy consumption, low airflow resistance and high filtration efficiency

Inactive Publication Date: 2015-07-29
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] To sum up, the current air filter can solve the filtration and purification of PM0.3~PM10 inhalable suspended particulate matter in the air, but due to the limitation of air filtration and purification materials, the use of dust holding capacity is low, the suction resistance is large, the service life is short, and there are After using the air filter, it will cause a series of problems such as increased equipment noise, increased system energy efficiency ratio, increased fan power consumption, and reduced indoor air flow. It is not suitable for general comfort air conditioning, HVAC and fresh air systems.

Method used

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  • High efficiency air filtering and purifying material

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preparation example Construction

[0040] The preparation method of the air filter in the present invention is not particularly limited, and the air filter purification material of the present invention can be assembled in the air filter by the method of the prior art.

[0041] The above-mentioned features mentioned in the present invention, or the features mentioned in the embodiments can be combined arbitrarily. All the features disclosed in the specification of this case can be used in combination with any combination, and each feature disclosed in the specification can be replaced by any alternative feature that provides the same, equivalent or similar purpose. Therefore, unless otherwise specified, the disclosed features are only general examples of equivalent or similar features.

[0042] The benefits of the present invention are:

[0043] (1) The present invention provides a novel air filter purification material.

[0044] (2) The air filter and purification material of the present invention can effect...

Embodiment 1

[0051] Polylactic acid is used as raw material to make C-shaped cross-section fibers. The cross-section is as follows: figure 1 As shown, the fineness is 5dtex. The length of a single fiber is about 2 mm, and the non-woven fabric material for air filtration is made into the special-shaped cross-section fiber through a hydroentanglement method.

[0052] The air filter is made of the above materials, and the filtration efficiency of PM0.3~PM10 respirable suspended particles is 99.8%, and the filtration efficiency of atmospheric bacteria is 100%. 3 Under the condition of air volume per hour, the initial resistance of airflow is 20Pa.

[0053] Under the same conditions, test the current commercial high-efficiency air filter, the filtration efficiency reaches 99.9%, and the initial airflow resistance is 150Pa.

Embodiment 2

[0055] Using polypropylene as raw material, T-shaped and H-shaped cross-section fibers are made respectively, the fineness is 0.5dtex, and the cross-section is as follows figure 2 and image 3 shown. The length of a single fiber is 5 mm, and two kinds of special-shaped cross-section fibers are made into a non-woven fabric material for air filtration by a melt blown method.

[0056] The air filter is made of the above materials, and the filtration efficiency of PM0.3~PM10 respirable suspended particles is 99.9%, and the filtration efficiency of atmospheric bacteria is 100%. 3 Under the condition of air volume per hour, the initial resistance of airflow is 40Pa.

[0057] Under the same conditions, test the current commercial high-efficiency air filter, the filtration efficiency reaches 99.9%, and the initial airflow resistance is 120Pa.

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Abstract

The invention relates to a high efficiency air filtering and purifying material. The material includes polymer fibers with abnormal cross section, and has the characteristics of high dust containing capacity and low airflow resistance, the filtering efficiency of the material on inhalable suspension particles with the particle size of above 0.3[mu]m in air reaches above 99.9%, the atmospheric bacterial filtering efficiency reaches 100%, and the airflow initial resistance under an air quantity of 1500m<3> / h is smaller than 50Pa, so the material can simultaneously substitute middle efficiency filtration and high efficiency filtration in present air filtration, and reduces the structure cost and the energy consumption of a relevant ventilation system on the premise that a same filtering effect is reached.

Description

technical field [0001] The invention belongs to the field of building air-conditioning, heating, ventilating, and environmental protection, and relates to a novel high-efficiency and low-resistance air ventilation filtering and purifying material. Background technique [0002] At present, with the continuous improvement of scientific and technological living standards and the neglect of environmental protection, the air quality in China and around the world continues to deteriorate, and the phenomenon of smog (PM0. Increasingly serious, it has had serious adverse effects on people's physical and mental health and work life. [0003] The air filter is the core equipment of the air purification part of the air conditioning, HVAC, fresh air system and other equipment. Through the air filter, various suspended substances in the external air and indoor air can be eliminated to ensure the indoor air quality. The filter forms resistance to the air, and as the filter dust increases...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16
Inventor 薛立新杜旭东
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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