Falling film absorption air purifier for removing indoor formaldehyde

An air purifier and falling film absorption technology, which is applied in the field of air purification, can solve the problems of regular replacement (about three months, increased volume and weight, troublesome users, etc.), and achieve long service life of equipment, simple structure and easy maintenance Effect

Inactive Publication Date: 2021-08-17
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Based on the current mainstream air purifiers, there are the following disadvantages: 1. The three-way catalytic converter in the air purifier is composed of precious metals platinum, germanium, and palladium. It must be activated for 3 minutes at a temperature above 100 degrees Celsius during work. Keep working at around 80 degrees Celsius, so it is necessary to install an air radiator and water cooling device, which increases the volume and weight, causing inconvenience in use
2. In order to make the air purifier work effectively and save electricity, automatic electronic control is used to adjust the temperature, which increases the cost
3. Although the water for spray atomization and cooling is sealed in the container, it still needs to be replaced regularly (about three months), which will cause trouble to users

Method used

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  • Falling film absorption air purifier for removing indoor formaldehyde
  • Falling film absorption air purifier for removing indoor formaldehyde
  • Falling film absorption air purifier for removing indoor formaldehyde

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Load the adsorbent activated carbon in the air purification column, and the filling height is 5 cm. at 5m 2 In the room, the concentration of formaldehyde in the air is 0.71mg / m 3 . After the purification device was operated indoors for 3 seconds, the concentration of formaldehyde in the indoor air was 0.009 mg / m 3 , The conversion removal rate is 98.7%.

Embodiment 2

[0030] Pack the adsorbent cellulose resin in the air purification column, and the filling height is 8 cm. at 5m 2 In the room, the concentration of formaldehyde in the air is 0.73mg / m3 . After the purification device runs indoors for 3.3s, the concentration of formaldehyde in the indoor air is 0.0082mg / m 3 , The conversion removal rate is 98.9%.

Embodiment 3

[0032] Pack the adsorbent white clay in the air purification column, and the filling height is 10 cm. at 5m 2 In the room, the concentration of formaldehyde in the air is 0.67mg / m 3 . After the purification device runs indoors for 5s, the concentration of formaldehyde in the indoor air is 0.0084mg / m 3 , The conversion removal rate is 98.7%.

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PUM

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Abstract

The invention discloses a falling film absorption air purifier for removing indoor formaldehyde, and relates to the field of air purification. Indoor air is fed into an air purification column containing an adsorbent through a fan or other air supply machines, water enters the purification column in a spraying mode from the top of the purification column, then an air flow from bottom to top makes full contact with and is absorbed by a water flow from top to bottom, the water finally flows into a water storage tank below a machine body, and operation is repeated so that water recycling can be achieved, and treated purified air is discharged from a top air outlet. The falling film absorption air purifier for removing the indoor formaldehyde has a function of quickly and powerfully removing volatile compounds such as the indoor formaldehyde, is long in service life and easy to maintain, is suitable for newly decorated places such as large office areas, meeting rooms and entertainment venues, and is also suitable for regular air treatment in large public activity areas such as clubs and stadiums and quick formaldehyde removal in places such as hospitals and professional laboratories, and the indoor air is purified.

Description

technical field [0001] The invention belongs to the technical field of air purification, and in particular relates to a falling film absorption method for removing indoor formaldehyde. Background technique [0002] With the development of economy and technology, the progress of society and the improvement of living standards, all kinds of interior decoration are becoming more and more popular. People pay more and more attention to their living environment, which has caused an upsurge of interior decoration. There are countless and various types of interior decoration materials, and the use of various additives is becoming more and more extensive. There is always a pungent smell in the renovated room, and if you stay there for a long time, people will have adverse reactions such as dizziness, glare, sore throat, and chest tightness, which are mostly intuitive manifestations of the hazards of formaldehyde. According to the analysis of indoor air testing data from all over the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F8/10F24F8/133F24F8/158F24F8/80F24F13/28
CPCF24F13/28
Inventor 张若琳朱正涛张一帆梁婧雨谭保婷张轩玮俞文杰张跃柳丽刘建武
Owner CHANGZHOU UNIV
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