Household formaldehyde removal device

A formaldehyde and household technology, applied in the field of environmental protection equipment, can solve the problem of not fundamentally solving the problem of formaldehyde pollution, expensive catalyst preparation cost, unfavorable civilian promotion, etc., achieve good promotion value, reduce preparation cost, and complete reaction effect

Inactive Publication Date: 2021-06-29
苏州任利环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common household formaldehyde removal devices on the market are as follows: 1. Use formaldehyde removal solution to wash and remove formaldehyde in the air (Chinese patents 20181041464.2, 201910298497.2). In this method, the formaldehyde removal solution is a consumable product. After reacting with formaldehyde 2, adopt adsorbent to adsorb and remove formaldehyde (Chinese patent 200610170695.3), this method still can escape into the atmosphere when adsorbent is regenerated, and does not fundamentally solve the pollution problem of formaldehyde; 3, Using low-temperature oxidation technology (Chinese patent 201810140663.1), formaldehyde can be removed at room temperature, but the catalyst needs to use precious metals such as platinum, and the preparation cost of the catalyst is expensive, which is not conducive to civilian promotion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029]A device for household formaldehyde removal, including a housing grille 6 and an air heating unit 7, a reaction unit 8, and a cooling unit 9 located inside the housing grille 6, an air inlet is provided on one side of the housing grid 6, and the housing grille 6 An outlet 601 is provided at the top of the reactor, and the reaction unit 8 includes a steel pipe reactor 1 and thermal insulation cotton 801. The inside of the steel pipe reactor 1 is provided with an annular channel 101, an air inlet 102 and an air outlet 103, and the air inlet 102 and the air outlet 103 are all in communication with the annular channel 101, the inside of the annular channel 101 is provided with at least twelve groups of partition assemblies 2 (only eight groups are shown in the figure), and every two groups of partition assemblies 2 are connected by connecting assemblies 3, the steel pipe reactor 1 The bottom of the bottom is provided with a collection assembly 4, and one end of the annular ch...

Embodiment 2

[0046] The difference between this embodiment and embodiment 1 is:

[0047] In this embodiment, the thickness of the thermal insulation cotton 801 is 20mm, the rated volume flow rate of the axial flow fan 901 is 7 times of the rated volume flow rate of the air pump 701, and the metal atom molar ratio of the first active component to the second active component is 6 / 1, the load of the two active components on the pellet 302 is 26wt%, the diameter of the pellet 302 is 3mm, and the specific surface area is 320㎡ / g.

Embodiment 3

[0049] The difference between this embodiment and embodiment 1 is:

[0050] In this embodiment, the thickness of the thermal insulation cotton 801 is 30 mm, the rated volume flow rate of the axial flow fan 901 is 7 times of the rated volume flow rate of the air pump 701, and the molar ratio of metal atoms of the first active component to the second active component is 4 / 1, the load of the two active components on the pellet 302 is 28wt%, the diameter of the pellet 302 is 4mm, and the specific surface area is 340㎡ / g.

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Abstract

The invention discloses a household formaldehyde removal device which comprises a shell grating, and an air heating unit, a reaction unit and a cooling unit which are located in the shell grating. An air inlet is formed on one side of the shell grating; an air outlet is formed at the top of the shell grating; and the reaction unit comprises a steel pipe reactor and heat preservation cotton. A thermodynamic catalytic oxidation method used in the invention is a non-consumable formaldehyde removal method, no extra reagent needs to be consumed in the formaldehyde removal process, and meanwhile, non-noble metal oxide is used as an active component, so that the preparation cost of a catalyst is reduced; the method has a relatively good popularization value; in addition, an air inlet hole and an air outlet hole are kept horizontal, are located at the two ends of the upper half portion of an annular passage and are kept relatively in parallel; and the tops of the inner walls of the air inlet hole and the air outlet hole and the top of the inner wall of the upper half portion of the annular passage are located on the same straight line, so that a flow pattern of air in a reaction tube is close to plug flow, backmixing is reduced, and the reaction is more thorough.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a household formaldehyde removal device. Background technique [0002] The formaldehyde content in the air of newly decorated rooms is worrying. The decoration materials containing formaldehyde include: various boards (finger-joint boards, density boards, block boards, plywood, particle boards, large core boards, ecological boards, composite floors, etc.), Wall putty, paint, paint, new furniture, etc. [0003] At present, the common household formaldehyde removal devices on the market are as follows: 1. Use formaldehyde removal solution to wash and remove formaldehyde in the air (Chinese patents 20181041464.2, 201910298497.2). In this method, the formaldehyde removal solution is a consumable product. After reacting with formaldehyde 2, adopt adsorbent to adsorb and remove formaldehyde (Chinese patent 200610170695.3), this method still can escape into the atmosph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F8/167F24F8/95
Inventor 虞海宇许海峰
Owner 苏州任利环保工程有限公司
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