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Air purifier for membrane separation

An air purification device and membrane separation technology, applied in separation methods, climate change adaptation, dispersed particle separation, etc., can solve the problems of single performance and high cost of air purifiers, achieve good social and economic benefits, low energy consumption, The effect of the simple structure of the device

Active Publication Date: 2012-12-19
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of single performance and high cost of the air purifier above, and provide a combination of inorganic membrane separation technology and catalytic technology, which can effectively purify indoor air, has simple structure, low energy consumption and high efficiency. Membrane separation air purification device

Method used

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  • Air purifier for membrane separation
  • Air purifier for membrane separation
  • Air purifier for membrane separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 The shown air purification device includes a housing 8, an air inlet 1 and an air outlet 9 arranged at both ends of the housing 8, and the housing 8 includes a blower fan 2, a pre-filter 3, and a separation membrane assembly arranged in sequence. The clean room 4 and activated carbon net 7.

[0038] Such as figure 2 As shown, the separation membrane module includes three tubular membranes (namely, separation membrane 6) made of ceramic materials. The diameter of the inner channel of the tubular membrane is 8mm, the pore diameter of the outer membrane is 0.05μm, the porous support layer and the porous embedded The layer pore size is 5 μm. Among them, such as image 3 As shown, the separation membrane 6 includes a four-layer structure, which is an outer membrane layer 61 , a porous support layer 62 , a catalyst particle layer 63 , and a porous inner layer 64 . The catalyst particle layer 63 is used for decomposing indoor volatile organic compounds such...

Embodiment 2

[0042] Compared with Example 1, the difference is only that, as figure 2 As shown, in this embodiment, the bottom of the clean room 4 is also provided with a dust collection assembly, which includes a double-layer mechanical flap valve composed of two V-shaped mechanical flap valves 51, 52 and a double-layer mechanical flap valve. The upper and lower dust collection chambers 53, 54 formed by the plate valve and the side wall of the clean room. Mechanical flap valves are used between the clean room and the upper and lower dust collection rooms to collect particles. The dust retained by the separation membrane module can be discharged into the upper dust collection chamber 53 and the lower dust collection chamber 54 for timely cleaning.

Embodiment 3

[0044] Compared with embodiment 1, the difference is only in: as Figure 4 As shown, the separation membrane in this embodiment is in a honeycomb configuration, and the separation membrane assembly includes two honeycomb configuration membranes made of ceramic materials. The diameters of the dusty gas channel and the purified gas channel are both 8mm, and the thickness of the outer membrane layer 61 is 0.01 μm, pore diameter 0.1 μm, porous support layer 62 thickness 1.5 mm, pore diameter 4 μm, catalyst particle layer 63 thickness 1 mm, porous inner layer 64 thickness 1 mm, pore diameter 4 μm. In addition, in this embodiment, the pre-filter 3 is a gelled cotton net with a pore size of 1 mm, and the activated carbon net 7 is filled with columnar activated carbon.

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Abstract

The invention relates to an air purifier for membrane separation. The purifier is an indoor air purifier integrated with the membrane filtering technology, the nanometer catalysis technology and the active carbon absorption technology. The air purifier comprises a shell, an air inlet and an air outlet arranged at the two ends of the shell. The air purifier is characterized in that the shell comprises a fan, a pre-filter net, a purifying chamber containing a separating membrane component, a dust collecting chamber and an active carbon net which are sequentially arranged; the dust collecting chamber is arranged at the bottom of the separating membrane component; the separated membrane for the air purifier has a catalytic function and removes volatile organic compound such as indoor benzene and formaldehyde when PM2.5 and germ are removed. The air purifier for membrane separation integrates a plurality of functions, is simple in structure, can continuously run and can be used for indoor air purification of families, hospitals and pharmaceutical factories.

Description

technical field [0001] The invention relates to a membrane separation air purification device, in particular to a new generation of air purification device integrating technologies for removing PM2.5, volatile organic compounds, bacteria and odors. Background technique [0002] In recent years, with the development of my country's economy and the improvement of people's living standards, home decoration conditions have been improving day by day, but closed decoration and a large number of indoor decoration materials and furniture have made indoor environmental pollution more and more serious. Indoor pollutants are mainly divided into three types: 1) Volatile organic compounds. The common ones are formaldehyde, benzene, toluene, ammonia, etc., which are extremely harmful to the human body. 2) Inhalable particulate matter PM2.5. PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 μm in the atmosphere, which mainly comes from the residues emitted by c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/22B01D46/10B01D53/04B01D53/86B01D53/44
CPCY02A50/2351Y02A50/20
Inventor 邢卫红张峰刘伟仲兆祥金万勤
Owner NANJING UNIV OF TECH
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