CA3056827A1 - Partition wall system having air purification function and method for purifying air - Google Patents
Partition wall system having air purification function and method for purifying air Download PDFInfo
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- CA3056827A1 CA3056827A1 CA3056827A CA3056827A CA3056827A1 CA 3056827 A1 CA3056827 A1 CA 3056827A1 CA 3056827 A CA3056827 A CA 3056827A CA 3056827 A CA3056827 A CA 3056827A CA 3056827 A1 CA3056827 A1 CA 3056827A1
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- Prior art keywords
- formaldehyde
- degradation material
- plasterboard
- formaldehyde degradation
- partition wall
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- 238000005192 partition Methods 0.000 title claims abstract description 48
- 238000004887 air purification Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 390
- 239000000463 material Substances 0.000 claims abstract description 106
- 230000015556 catabolic process Effects 0.000 claims abstract description 88
- 238000006731 degradation reaction Methods 0.000 claims abstract description 88
- 238000009413 insulation Methods 0.000 claims abstract description 44
- 239000012528 membrane Substances 0.000 claims abstract description 18
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 13
- 239000010440 gypsum Substances 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 7
- -1 amino compound Chemical class 0.000 claims description 24
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical class O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 22
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 16
- 239000005695 Ammonium acetate Substances 0.000 claims description 16
- 229940043376 ammonium acetate Drugs 0.000 claims description 16
- 235000019257 ammonium acetate Nutrition 0.000 claims description 16
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 12
- 239000004202 carbamide Substances 0.000 claims description 12
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 11
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 11
- 230000001699 photocatalysis Effects 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 238000012806 monitoring device Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 239000004113 Sepiolite Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000011491 glass wool Substances 0.000 claims description 2
- 239000011490 mineral wool Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052624 sepiolite Inorganic materials 0.000 claims description 2
- 235000019355 sepiolite Nutrition 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 230000000593 degrading effect Effects 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000622 irritating effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004758 synthetic textile Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/42—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Catalysts (AREA)
Abstract
A partition wall system having an air purification function. The partition wall system comprises an inner gypsum board (1), a keel (2), a thermal insulation layer (3), an outer gypsum board (7), a one-way breather membrane (6), and a cavity (4). The one-way breather membrane (6) is disposed between the thermal insulation layer (3) and the outer gypsum board (7). The cavity (4) is disposed between the thermal insulation layer (3) and the one-way breather membrane (6), and is configured to be in fluid communication with an air vent of a house. The outer gypsum board (7) contains a formaldehyde degradation material. Also disclosed is a method for purifying air by using the partition wall system having an air purification function.
Description
Partition Wall System Having Air Purification Function and Method for Purifying Air Technical Field The present application relates to, but is not limited to, a partition wall system having an air purification function and a method for purifying air.
Background Indoor formaldehyde pollution primarily comes from furniture, artificial boards, various adhesive coatings and synthetic textiles, or the like. Indoor formaldehyde pollution affects people's health, to which a great attention has been paid. The harm of indoor formaldehyde to human health primarily includes irritant effects, toxic effects and carcinogenic effects. If no effective measures are taken, formaldehyde volatilization would last for 3-15 years, seriously affecting the quality of the indoor environment where people live.
Summary The following is a summary of subject matters described in detail herein. The present summary is not intended to limit the scope of the claims.
The present application provides a partition wall system capable of reducing indoor formaldehyde.
Particularly, the present application provides a partition wall system having an air purification function. The partition wall system includes an inner plasterboard, a keel, a thermal insulation layer, an outer plasterboard, a one-way breather membrane, and a cavity. The one-way breather membrane is disposed between the thermal insulation layer and the outer plasterboard.
The cavity is disposed between the thermal insulation layer and the one-way breather membrane.
In addition, the cavity is configured to be in fluid communication with an air vent of a house. The outer plasterboard contains a formaldehyde degradation material.
In the present application, the one-way breather membrane only allows harmful gases such as free formaldehyde to enter the cavity from the outer plasterboard, and does not allow the harmful gases such as formaldehyde to return from the cavity to the outer plasterboard.
In one embodiment of the present application, the inner plasterboard may contain a formaldehyde degradation material.
In one embodiment of the present application, the formaldehyde degradation material in the outer plasterboard may be sprayed on the surface of the outer plasterboard and/or added into the board core of the outer plasterboard, the formaldehyde degradation material sprayed on the surface of the outer plasterboard may be visible-light formaldehyde degradation material, and the formaldehyde degradation material added into the board core of the outer plasterboard may be an .. amino compound.
In one embodiment of the present application, when the formaldehyde degradation material in the outer plasterboard is added into the board core of the outer plasterboard, the amount of the added formaldehyde degradation material may account for 0.5% to 3% of, further optionally 2%
to 3% of the weight of gypsum used for preparing the outer plasterboard.
Optionally, the visible-light formaldehyde degradation material is a modified TiO2 photocatalytic material.
Optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
In one embodiment of the present application, a formaldehyde degradation material may be added into the board core of the inner plasterboard.
Optionally, the amount of formaldehyde degradation material added into the board core of the inner plasterboard accounts for 0.5% to 3% of, further optionally 2% to 3%
of the weight of gypsum used for preparing the inner plasterboard.
Optionally, the formaldehyde degradation material in the board core of the inner .. plasterboard is an amino compound, and optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
In the embodiment of the present application, a formaldehyde degradation material may be added into the board core of the thermal insulation layer.
Background Indoor formaldehyde pollution primarily comes from furniture, artificial boards, various adhesive coatings and synthetic textiles, or the like. Indoor formaldehyde pollution affects people's health, to which a great attention has been paid. The harm of indoor formaldehyde to human health primarily includes irritant effects, toxic effects and carcinogenic effects. If no effective measures are taken, formaldehyde volatilization would last for 3-15 years, seriously affecting the quality of the indoor environment where people live.
Summary The following is a summary of subject matters described in detail herein. The present summary is not intended to limit the scope of the claims.
The present application provides a partition wall system capable of reducing indoor formaldehyde.
Particularly, the present application provides a partition wall system having an air purification function. The partition wall system includes an inner plasterboard, a keel, a thermal insulation layer, an outer plasterboard, a one-way breather membrane, and a cavity. The one-way breather membrane is disposed between the thermal insulation layer and the outer plasterboard.
The cavity is disposed between the thermal insulation layer and the one-way breather membrane.
In addition, the cavity is configured to be in fluid communication with an air vent of a house. The outer plasterboard contains a formaldehyde degradation material.
In the present application, the one-way breather membrane only allows harmful gases such as free formaldehyde to enter the cavity from the outer plasterboard, and does not allow the harmful gases such as formaldehyde to return from the cavity to the outer plasterboard.
In one embodiment of the present application, the inner plasterboard may contain a formaldehyde degradation material.
In one embodiment of the present application, the formaldehyde degradation material in the outer plasterboard may be sprayed on the surface of the outer plasterboard and/or added into the board core of the outer plasterboard, the formaldehyde degradation material sprayed on the surface of the outer plasterboard may be visible-light formaldehyde degradation material, and the formaldehyde degradation material added into the board core of the outer plasterboard may be an .. amino compound.
In one embodiment of the present application, when the formaldehyde degradation material in the outer plasterboard is added into the board core of the outer plasterboard, the amount of the added formaldehyde degradation material may account for 0.5% to 3% of, further optionally 2%
to 3% of the weight of gypsum used for preparing the outer plasterboard.
Optionally, the visible-light formaldehyde degradation material is a modified TiO2 photocatalytic material.
Optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
In one embodiment of the present application, a formaldehyde degradation material may be added into the board core of the inner plasterboard.
Optionally, the amount of formaldehyde degradation material added into the board core of the inner plasterboard accounts for 0.5% to 3% of, further optionally 2% to 3%
of the weight of gypsum used for preparing the inner plasterboard.
Optionally, the formaldehyde degradation material in the board core of the inner .. plasterboard is an amino compound, and optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
In the embodiment of the present application, a formaldehyde degradation material may be added into the board core of the thermal insulation layer.
2 Optionally, the amount of formaldehyde degradation material added into the board core of the thermal insulation layer accounts for 2% to 3% of the weight of the thermal insulation layer.
Optionally, the formaldehyde degradation material in the board core of the thermal insulation layer is an amino compound, and optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea. In one embodiment of the present application, the partition wall system having an air purification function may further include an ultraviolet lamp, the ultraviolet lamp being disposed on the top of the cavity.
In one embodiment of the present application, the formaldehyde degradation material in the outer plasterboard may be sprayed on the surface of the outer plasterboard and/or added into the board core of the outer plasterboard, the formaldehyde degradation material sprayed on the surface of the outer plasterboard may be an ultraviolet-light formaldehyde degradation material, or a mixture of a visible-light formaldehyde degradation material and an ultraviolet-light formaldehyde degradation material, and the formaldehyde degradation material added into the board core of the outer plasterboard may be an amino compound.
Optionally, the visible-light formaldehyde degradation material is a modified TiO2 photocatalytic material.
Optionally, the ultraviolet-light formaldehyde degradation material is a TiO2photocatalytic material.
Optionally, the amino compound is selected from one or more of ammonium acetate, urea-.. formaldehyde resin and urea.
In one embodiment of the present application, the surface of the inner plasterboard may be sprayed with a formaldehyde degradation material, the formaldehyde degradation may be an ultraviolet-light formaldehyde degradation material, and the thermal insulation layer has a porous structure to allow ultraviolet light to pass through the thermal insulation layer.
Optionally, the formaldehyde degradation material may be added into the board core of the inner plasterboard, and the surface of the inner plasterboard may be sprayed with the formaldehyde degradation material, the formaldehyde degradation material added into the board core of the inner plasterboard may be an amino compound, the formaldehyde degradation material sprayed on the surface of the inner plasterboard may be an ultraviolet-light formaldehyde
Optionally, the formaldehyde degradation material in the board core of the thermal insulation layer is an amino compound, and optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea. In one embodiment of the present application, the partition wall system having an air purification function may further include an ultraviolet lamp, the ultraviolet lamp being disposed on the top of the cavity.
In one embodiment of the present application, the formaldehyde degradation material in the outer plasterboard may be sprayed on the surface of the outer plasterboard and/or added into the board core of the outer plasterboard, the formaldehyde degradation material sprayed on the surface of the outer plasterboard may be an ultraviolet-light formaldehyde degradation material, or a mixture of a visible-light formaldehyde degradation material and an ultraviolet-light formaldehyde degradation material, and the formaldehyde degradation material added into the board core of the outer plasterboard may be an amino compound.
Optionally, the visible-light formaldehyde degradation material is a modified TiO2 photocatalytic material.
Optionally, the ultraviolet-light formaldehyde degradation material is a TiO2photocatalytic material.
Optionally, the amino compound is selected from one or more of ammonium acetate, urea-.. formaldehyde resin and urea.
In one embodiment of the present application, the surface of the inner plasterboard may be sprayed with a formaldehyde degradation material, the formaldehyde degradation may be an ultraviolet-light formaldehyde degradation material, and the thermal insulation layer has a porous structure to allow ultraviolet light to pass through the thermal insulation layer.
Optionally, the formaldehyde degradation material may be added into the board core of the inner plasterboard, and the surface of the inner plasterboard may be sprayed with the formaldehyde degradation material, the formaldehyde degradation material added into the board core of the inner plasterboard may be an amino compound, the formaldehyde degradation material sprayed on the surface of the inner plasterboard may be an ultraviolet-light formaldehyde
3 degradation material, and the thermal insulation layer has a porous structure to allow ultraviolet light to pass through the thermal insulation layer.
Optionally, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, the amino compound may be selected from one or more of ammonium acetate, urea-formaldehyde resin and urea, and the thermal insulation layer is rock wool or glass wool.
In one embodiment of the present application, the surface of the thermal insulation layer may be sprayed with a formaldehyde degradation material, which may be an ultraviolet-light formaldehyde degradation material.
Optionally, the formaldehyde degradation material may be added into the board core of the thermal insulation layer, and the surface of the thermal insulation layer may be sprayed with a formaldehyde degradation material. The formaldehyde degradation material added into the board core of the thermal insulation layer may be an amino compound, and the formaldehyde degradation material sprayed on the surface of the thermal insulation layer may be an ultraviolet-light formaldehyde degradation material.
Optionally, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, and the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
In one embodiment of the present application, the inner plasterboard, or the outer plasterboard, or both of the inner plasterboard and the outer plasterboard may be phase-change plasterboard.
In one embodiment of the present application, the outer plasterboard may also contain a formaldehyde adsorption material.
In one embodiment of the present application, the formaldehyde adsorption material may be selected from one or more of diatomite, sepiolite, active silicon and active aluminum.
In one embodiment of the present application, the weight of the formaldehyde adsorption material does not exceed 10% of the weight of calcined gypsum that is a raw material used for preparing the outer plasterboard.
In one embodiment of the present application, the partition wall system having an air
Optionally, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, the amino compound may be selected from one or more of ammonium acetate, urea-formaldehyde resin and urea, and the thermal insulation layer is rock wool or glass wool.
In one embodiment of the present application, the surface of the thermal insulation layer may be sprayed with a formaldehyde degradation material, which may be an ultraviolet-light formaldehyde degradation material.
Optionally, the formaldehyde degradation material may be added into the board core of the thermal insulation layer, and the surface of the thermal insulation layer may be sprayed with a formaldehyde degradation material. The formaldehyde degradation material added into the board core of the thermal insulation layer may be an amino compound, and the formaldehyde degradation material sprayed on the surface of the thermal insulation layer may be an ultraviolet-light formaldehyde degradation material.
Optionally, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, and the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
In one embodiment of the present application, the inner plasterboard, or the outer plasterboard, or both of the inner plasterboard and the outer plasterboard may be phase-change plasterboard.
In one embodiment of the present application, the outer plasterboard may also contain a formaldehyde adsorption material.
In one embodiment of the present application, the formaldehyde adsorption material may be selected from one or more of diatomite, sepiolite, active silicon and active aluminum.
In one embodiment of the present application, the weight of the formaldehyde adsorption material does not exceed 10% of the weight of calcined gypsum that is a raw material used for preparing the outer plasterboard.
In one embodiment of the present application, the partition wall system having an air
4 purification function may further include a formaldehyde content monitoring device, the formaldehyde content monitoring device being configured to monitor the formaldehyde content in the partition wall system in real time and to raise an alarm when the monitored formaldehyde content exceeds a set value. After people hear the alarm, the air volume of the fresh air system of the house may be increased, thus accelerating the photocatalytic rate by the ultraviolet light within the body of the partition wall system.
In one embodiment of the present application, the partition wall system may be integral with furniture of a house. The furniture may have no rear wall, or top wall, or neither rear wall or top wall, and be in fluid communication with the outer plasterboard of the partition wall system through the one-way breather membrane.
The present application also provides a method for purifying air, and the method includes using the partition wall system having an air purification function as described above.
Due to the addition of the formaldehyde degradation material into the outer plasterboard, the partition wall system of the present application has the function of degrading formaldehyde, and other performances of the partition wall system are not affected, thus complying with national standards. When the outer plasterboard contains a formaldehyde adsorption material, harmful gases such as formaldehyde which are not degraded by the formaldehyde degradation material are adsorbed and enter the cavity between the outer plasterboard and the thermal insulation layer through the one-way breather membrane. As the cavity is in fluid communication with the air vent of the house, harmful gases such as formaldehyde are discharged from the room, so that the outer plasterboard may continuously adsorb harmful gases such as formaldehyde in the air.
The heat released by the ultraviolet lamp in the partition wall system having an air purification function of the present application may be stored by the phase-change plasterboard, and the energy is released during night or when indoor temperature is low, thus achieving a purpose of adjusting the indoor temperature. The ultraviolet lamp is disposed on the top of the cavity. As the keel on the top of the cavity is provided with a hole and the size of the hole is smaller than the size of the cavity, the flow channel of formaldehyde-containing air is narrowed when passing through the hole, resulting in increased retention time, prolonged reaction time, and thus improved formaldehyde purification rate.
In one embodiment of the present application, the partition wall system may be integral with furniture of a house. The furniture may have no rear wall, or top wall, or neither rear wall or top wall, and be in fluid communication with the outer plasterboard of the partition wall system through the one-way breather membrane.
The present application also provides a method for purifying air, and the method includes using the partition wall system having an air purification function as described above.
Due to the addition of the formaldehyde degradation material into the outer plasterboard, the partition wall system of the present application has the function of degrading formaldehyde, and other performances of the partition wall system are not affected, thus complying with national standards. When the outer plasterboard contains a formaldehyde adsorption material, harmful gases such as formaldehyde which are not degraded by the formaldehyde degradation material are adsorbed and enter the cavity between the outer plasterboard and the thermal insulation layer through the one-way breather membrane. As the cavity is in fluid communication with the air vent of the house, harmful gases such as formaldehyde are discharged from the room, so that the outer plasterboard may continuously adsorb harmful gases such as formaldehyde in the air.
The heat released by the ultraviolet lamp in the partition wall system having an air purification function of the present application may be stored by the phase-change plasterboard, and the energy is released during night or when indoor temperature is low, thus achieving a purpose of adjusting the indoor temperature. The ultraviolet lamp is disposed on the top of the cavity. As the keel on the top of the cavity is provided with a hole and the size of the hole is smaller than the size of the cavity, the flow channel of formaldehyde-containing air is narrowed when passing through the hole, resulting in increased retention time, prolonged reaction time, and thus improved formaldehyde purification rate.
5 Further features and advantages of the present application will be set forth in the description which follows, and in part will be apparent from the specification, or may be appreciated through the practice of the application. The objects and other advantages of the present application may be realized and achieved by the structures particularly set forth in the specification, claims and drawings.
Brief Description of Drawings The accompanying drawings are used to provide a further understanding of the technical scheme of the present application and constitute a part of the specification.
The accompanying drawings together with the embodiments of the application, are used to explain the technical scheme of the present application and do not constitute a limitation on the technical scheme of the present application.
FIG. 1 is a schematic diagram of a structure of a partition wall system having an air purification function according to Example 1 of the present application.
Detailed Description In order to make the objects, technical scheme and advantages of this application become more apparent, Examples of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the Examples in the present application as well as features in the Examples may be in any combination with each other without conflict.
The TiO2 that degrades formaldehyde under ultraviolet light and the modified TiO2 that degrades formaldehyde under visible light used in the following Examples are both common commercial products, and the commercial products with a 24-hour formaldehyde purification rate of more than 90% may be used. Other raw materials and reagents, unless otherwise specified, are common commercial products.
Example 1 As shown in FIG. 1, the partition wall system having an air purification function of this
Brief Description of Drawings The accompanying drawings are used to provide a further understanding of the technical scheme of the present application and constitute a part of the specification.
The accompanying drawings together with the embodiments of the application, are used to explain the technical scheme of the present application and do not constitute a limitation on the technical scheme of the present application.
FIG. 1 is a schematic diagram of a structure of a partition wall system having an air purification function according to Example 1 of the present application.
Detailed Description In order to make the objects, technical scheme and advantages of this application become more apparent, Examples of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the Examples in the present application as well as features in the Examples may be in any combination with each other without conflict.
The TiO2 that degrades formaldehyde under ultraviolet light and the modified TiO2 that degrades formaldehyde under visible light used in the following Examples are both common commercial products, and the commercial products with a 24-hour formaldehyde purification rate of more than 90% may be used. Other raw materials and reagents, unless otherwise specified, are common commercial products.
Example 1 As shown in FIG. 1, the partition wall system having an air purification function of this
6 Exa'mple includes an inner plasterboard 1, a keel 2, a thermal insulation layer 3, a cavity 4, an ultraviolet lamp 5, a one-way breather membrane 6, and an outer plasterboard
7.
The one-way breather membrane 6 is disposed between the thermal insulation layer 3 and the outer plasterboard 7. The cavity 4 is disposed between the thermal insulation layer 3 and the one-way breather membrane 6 and is in fluid communication with an air vent of a fresh air system of a house. The ultraviolet lamp 5 is disposed on the top of the cavity 4.
The outer surface of the outer plasterboard 7 is sprayed with TiO2 with an effective amount of 2g/m2 that may degrade formaldehyde under ultraviolet light, and the board core of the outer plasterboard 7 contains 10% diatomite (based on the weight of calcined gypsum used for preparing the outer plasterboard).
The surface of the thermal insulation layer 3 close to the cavity is sprayed with TiO2 with an effective amount of 2g/m2, which may degrade formaldehyde under ultraviolet light.
Indoor furniture (e.g. wardrobe) has no rear wall and is integral with the partition wall system. A one-way breather membrane 6 is disposed between the furniture and the outer plasterboard 7 of the partition wall system, so that harmful gases such as formaldehyde emitted from interior of the wardrobe may be continuously absorbed by the outer plasterboard 7 under the action of negative pressure, enter the cavity 4, and then be discharged from the room though the air vent of the fresh air system to improve the indoor environment.
The partition wall system having an air purification function of this Example further includes a formaldehyde content monitoring device (commercially available), which is configured to monitor the formaldehyde content in the partition wall system in real time and to raise an alarm when the monitored formaldehyde content exceeds a set value.
After people hear the alarm, the air volume of the fresh air system of the house may be increased, thus accelerating the photocatalytic rate by the ultraviolet light within the body of the partition wall system.
Example 2 This Example differs from the Example I only in that the partition wall system does not include a cavity, an ultraviolet lamp and a one-way breather membrane.
Example 3 This Example differs from the Example 1 only in that the board core of the outer plasterboard contains only ammonium acetate (no diatomite as a formaldehyde adsorption material), the amount of the added ammonium acetate accounts for 2% of the weight of gypsum used for preparing the outer plasterboard, and there is no formaldehyde degradation material on the outer surface of the outer plasterboard and the outer surface of the thermal insulation layer.
Example 4 This Example differs from the Example 1 only in that the formaldehyde degradation material sprayed on the outer surface of the outer plasterboard is only modified TiO2 with an effective amount of 2g/m2 that may degrade formaldehyde under visible light, and there is no .. formaldehyde degradation material or formaldehyde adsorption material on the board core of the outer plasterboard and the outer surface of the thermal insulation layer.
Moreover, the partition wall system of this Example is not integral with indoor furniture.
Example 5 This Example differs from the Example 1 only in that additionally, ammonium acetate as a formaldehyde degradation material is added into the board core of the inner plasterboard and the board core of the outer plasterboard, and the amount of the added ammonium acetate accounts for 0.5% of the weight of gypsum used for preparing the inner plasterboard and the outer plasterboard.
The effects of formaldehyde purification of the partition wall systems of the Examples 1-5 are shown in the following table:
NO. 24-hour formaldehyde purification rate Example 1 96.3%
Example 2 77.0%
Example 3 93.6%
Example 4 90.3%
Example 5 96.8%
Although the embodiments disclosed in the present application have been described above, the contents are only about the embodiments adopted for the convenience of understanding the present application and are not intended to limit the present application. Any of those skilled in the art to which the present application belongs may make any modifications and variations on
The one-way breather membrane 6 is disposed between the thermal insulation layer 3 and the outer plasterboard 7. The cavity 4 is disposed between the thermal insulation layer 3 and the one-way breather membrane 6 and is in fluid communication with an air vent of a fresh air system of a house. The ultraviolet lamp 5 is disposed on the top of the cavity 4.
The outer surface of the outer plasterboard 7 is sprayed with TiO2 with an effective amount of 2g/m2 that may degrade formaldehyde under ultraviolet light, and the board core of the outer plasterboard 7 contains 10% diatomite (based on the weight of calcined gypsum used for preparing the outer plasterboard).
The surface of the thermal insulation layer 3 close to the cavity is sprayed with TiO2 with an effective amount of 2g/m2, which may degrade formaldehyde under ultraviolet light.
Indoor furniture (e.g. wardrobe) has no rear wall and is integral with the partition wall system. A one-way breather membrane 6 is disposed between the furniture and the outer plasterboard 7 of the partition wall system, so that harmful gases such as formaldehyde emitted from interior of the wardrobe may be continuously absorbed by the outer plasterboard 7 under the action of negative pressure, enter the cavity 4, and then be discharged from the room though the air vent of the fresh air system to improve the indoor environment.
The partition wall system having an air purification function of this Example further includes a formaldehyde content monitoring device (commercially available), which is configured to monitor the formaldehyde content in the partition wall system in real time and to raise an alarm when the monitored formaldehyde content exceeds a set value.
After people hear the alarm, the air volume of the fresh air system of the house may be increased, thus accelerating the photocatalytic rate by the ultraviolet light within the body of the partition wall system.
Example 2 This Example differs from the Example I only in that the partition wall system does not include a cavity, an ultraviolet lamp and a one-way breather membrane.
Example 3 This Example differs from the Example 1 only in that the board core of the outer plasterboard contains only ammonium acetate (no diatomite as a formaldehyde adsorption material), the amount of the added ammonium acetate accounts for 2% of the weight of gypsum used for preparing the outer plasterboard, and there is no formaldehyde degradation material on the outer surface of the outer plasterboard and the outer surface of the thermal insulation layer.
Example 4 This Example differs from the Example 1 only in that the formaldehyde degradation material sprayed on the outer surface of the outer plasterboard is only modified TiO2 with an effective amount of 2g/m2 that may degrade formaldehyde under visible light, and there is no .. formaldehyde degradation material or formaldehyde adsorption material on the board core of the outer plasterboard and the outer surface of the thermal insulation layer.
Moreover, the partition wall system of this Example is not integral with indoor furniture.
Example 5 This Example differs from the Example 1 only in that additionally, ammonium acetate as a formaldehyde degradation material is added into the board core of the inner plasterboard and the board core of the outer plasterboard, and the amount of the added ammonium acetate accounts for 0.5% of the weight of gypsum used for preparing the inner plasterboard and the outer plasterboard.
The effects of formaldehyde purification of the partition wall systems of the Examples 1-5 are shown in the following table:
NO. 24-hour formaldehyde purification rate Example 1 96.3%
Example 2 77.0%
Example 3 93.6%
Example 4 90.3%
Example 5 96.8%
Although the embodiments disclosed in the present application have been described above, the contents are only about the embodiments adopted for the convenience of understanding the present application and are not intended to limit the present application. Any of those skilled in the art to which the present application belongs may make any modifications and variations on
8 the form and details of implementation of the present application without departing from the spirit and scope disclosed in the present application, but the scope of what is claimed by the present application shall still be subject to the scope defined in the appended claims.
Industrial Applicability The partition wall system having an air purification function and the method for purifying air of the present application are capable of degrading formaldehyde, thus effectively purifying indoor air.
Industrial Applicability The partition wall system having an air purification function and the method for purifying air of the present application are capable of degrading formaldehyde, thus effectively purifying indoor air.
9
Claims (14)
1. A partition wall system having an air purification function, the partition wall system comprising an inner plasterboard, a keel, a thermal insulation layer, an outer plasterboard, a one-way breather membrane and a cavity, wherein the one-way breather membrane is disposed between the thermal insulation layer and the outer plasterboard, the cavity is disposed between the thermal insulation layer and the one-way breather membrane, and the cavity is configured to be in fluid communication with an air vent of a house, and the outer plasterboard comprises a formaldehyde degradation material.
2. The partition wall system having an air purification function according to claim 1, wherein the inner plasterboard comprises a formaldehyde degradation material.
3. The partition wall system having an air purification function according to claim 1 or 2, wherein, the formaldehyde degradation material in the outer plasterboard is sprayed on the surface of the outer plasterboard and/or added into the board core of the outer plasterboard, the formaldehyde degradation material sprayed on the surface of the outer plasterboard is a visible-light formaldehyde degradation material, and the formaldehyde degradation material added into the board core of the outer plasterboard is an amino compound;
optionally, when the formaldehyde degradation material in the outer plasterboard is added into the board core of the outer plasterboard, the amount of the added formaldehyde degradation material accounts for 0.5% to 3% of, further optionally 2% to 3%
of the weight of gypsum used for preparing the outer plasterboard;
optionally, the visible-light formaldehyde degradation material is a modified TiO2 photocatalytic material, and the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
optionally, when the formaldehyde degradation material in the outer plasterboard is added into the board core of the outer plasterboard, the amount of the added formaldehyde degradation material accounts for 0.5% to 3% of, further optionally 2% to 3%
of the weight of gypsum used for preparing the outer plasterboard;
optionally, the visible-light formaldehyde degradation material is a modified TiO2 photocatalytic material, and the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
4. The partition wall system having an air purification function according to any one of claims 1 to 3, wherein, the formaldehyde degradation material is added into the board core of the inner plasterboard;
optionally, the amount of formaldehyde degradation material added into the board core of the inner plasterboard accounts for 0.5% to 3% of, optionally 2% to 3% of the weight of gypsum used for preparing the inner plasterboard;
optionally, the formaldehyde degradation material in the board core of the inner plasterboard is an amino compound, and optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
optionally, the amount of formaldehyde degradation material added into the board core of the inner plasterboard accounts for 0.5% to 3% of, optionally 2% to 3% of the weight of gypsum used for preparing the inner plasterboard;
optionally, the formaldehyde degradation material in the board core of the inner plasterboard is an amino compound, and optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
5. The partition wall system having an air purification function according to any one of claims 1 to 4, wherein, the formaldehyde degradation material is added into the board core of the thermal insulation layer;
optionally, the amount of the formaldehyde degradation material added into the board core of the thermal insulation layer accounts for 2% to 3% of the weight of the thermal insulation layer;
optionally, the formaldehyde degradation material in the board core of the thermal insulation layer is an amino compound, and optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
optionally, the amount of the formaldehyde degradation material added into the board core of the thermal insulation layer accounts for 2% to 3% of the weight of the thermal insulation layer;
optionally, the formaldehyde degradation material in the board core of the thermal insulation layer is an amino compound, and optionally, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
6. The partition wall system having an air purification function according to claim 1 or 2, further comprising an ultraviolet lamp, wherein the ultraviolet lamp is disposed on the top of the cavity.
7. The partition wall system having an air purification function according to claim 6, wherein the formaldehyde degradation material in the outer plasterboard is sprayed on the surface of the outer plasterboard and/or added into the board core of the outer plasterboard, the formaldehyde degradation material sprayed on the surface of the outer plasterboard is an ultraviolet-light formaldehyde degradation material, or a mixture of a visible-light formaldehyde degradation material and an ultraviolet-light formaldehyde degradation material, and the formaldehyde degradation material added into the board core of the outer plasterboard is an amino compound;
optionally, the visible-light formaldehyde degradation material is a modified TiO2 photocatalytic material, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, and the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
optionally, the visible-light formaldehyde degradation material is a modified TiO2 photocatalytic material, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, and the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
8. The partition wall system having an air purification function according to claim 6 or 7, wherein, the surface of the inner plasterboard is sprayed with a formaldehyde degradation material, the formaldehyde degradation material is an ultraviolet-light formaldehyde degradation material, and the thermal insulation layer has a porous structure to allow ultraviolet light to pass through the thermal insulation layer; or the formaldehyde degradation material is added into the board core of the inner plasterboard, and the surface of the inner plasterboard is sprayed with a formaldehyde degradation material, the formaldehyde degradation material added into the board core of the inner plasterboard is an amino compound, the formaldehyde degradation material sprayed on the surface of the inner plasterboard is an ultraviolet-light formaldehyde degradation material, and the thermal insulation layer has a porous structure to allow ultraviolet light to pass through the thermal insulation layer;
optionally, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea, and the thermal insulation layer is rock wool or glass wool.
optionally, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea, and the thermal insulation layer is rock wool or glass wool.
9. The partition wall system having an air purification function according to any one of claims 6 to 8, wherein the surface of the thermal insulation layer is sprayed with the formaldehyde degradation material, and the formaldehyde degradation material is an ultraviolet-light formaldehyde degradation material; or, the formaldehyde degradation material is added into the board core of the thermal insulation layer, and the surface of the thermal insulation layer is sprayed with the formaldehyde degradation material, the formaldehyde degradation material added into the board core of the thermal insulation layer is an amino compound, and the formaldehyde degradation material sprayed on the surface of the thermal insulation layer is an ultraviolet-light formaldehyde degradation material;
optionally, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, and the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
optionally, the ultraviolet-light formaldehyde degradation material is a TiO2 photocatalytic material, and the amino compound is selected from one or more of ammonium acetate, urea-formaldehyde resin and urea.
10. The partition wall system having an air purification function according to any one of claims 1 to 9, wherein the inner plasterboard, or the outer plasterboard, or both of the inner plasterboard and the outer plasterboard are phase-change plasterboard.
11. The partition wall system having an air purification function according to any one of claims 1 to 9, wherein the outer plasterboard further comprises a formaldehyde adsorption material; optionally, the formaldehyde adsorption material is selected from one or more of diatomite, sepiolite, active silicon and active aluminum; further optionally, the weight of the formaldehyde adsorption material does not exceed 10% of the weight of calcined gypsum that is a raw material used for preparing the outer plasterboard.
12. The partition wall system having an air purification function according to any one of claims 1 to 11, further comprising a formaldehyde content monitoring device, the formaldehyde content monitoring device being configured to monitor the formaldehyde content in the partition wall system in real time and to raise an alarm when the monitored formaldehyde content exceeds a set value.
13. The partition wall system having an air purification function according to any one of claims 1 to 12, wherein, the partition wall system is configured to be integral with furniture of the house, the furniture has no rear wall and/or top wall and is in fluid communication with the outer plasterboard of the partition wall system through the one-way breather membrane.
14. A method for purifying air, the method comprising using the partition wall system having an air purification function according to any one of claims 1 to 13.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995899.9 | 2017-10-23 | ||
| CN201710994192.6 | 2017-10-23 | ||
| CN201710995121.8A CN109695306B (en) | 2017-10-23 | 2017-10-23 | Partition wall system capable of purifying air |
| CN201710995122.2 | 2017-10-23 | ||
| CN201710995899.9A CN109692568B (en) | 2017-10-23 | 2017-10-23 | Method for purifying air by using partition wall system |
| CN201710995122.2A CN109695307B (en) | 2017-10-23 | 2017-10-23 | Partition wall system with air purification function |
| CN201710995121.8 | 2017-10-23 | ||
| CN201710994192.6A CN109695305B (en) | 2017-10-23 | 2017-10-23 | Method for purifying air |
| PCT/CN2018/078471 WO2019080435A1 (en) | 2017-10-23 | 2018-03-08 | Partition wall system having air purification function, and method for purifying air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA3056827A1 true CA3056827A1 (en) | 2019-05-02 |
| CA3056827C CA3056827C (en) | 2021-11-30 |
Family
ID=66247126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3056827A Active CA3056827C (en) | 2017-10-23 | 2018-03-08 | Partition wall system having air purification function and method for purifying air |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA3056827C (en) |
| WO (1) | WO2019080435A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115784697B (en) * | 2022-11-29 | 2024-02-23 | 广州市贤达建材有限公司 | Self-heat-preservation autoclaved aerated block and preparation process thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10337803A (en) * | 1997-06-06 | 1998-12-22 | Toppan Printing Co Ltd | Gypsum board |
| CN201078037Y (en) * | 2007-08-20 | 2008-06-25 | 苏州皇家整体住宅系统有限公司 | Wood structure one-way ventilating thermal insulation wall |
| CN204475754U (en) * | 2015-03-24 | 2015-07-15 | 东易日盛家居装饰集团股份有限公司 | A kind of decomposing formaldehyde light steel keel partition structure |
| CN205024879U (en) * | 2015-10-08 | 2016-02-10 | 威海海宝集成房屋有限公司 | Take wall body in glass steel ventilation groove |
| CN205171732U (en) * | 2015-11-11 | 2016-04-20 | 华北水利水电大学 | Sound insulation wall structure |
| CN105587084B (en) * | 2015-12-15 | 2018-12-11 | 泰山石膏有限公司 | A kind of Thistle board, preparation method and its application method |
-
2018
- 2018-03-08 WO PCT/CN2018/078471 patent/WO2019080435A1/en active Application Filing
- 2018-03-08 CA CA3056827A patent/CA3056827C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA3056827C (en) | 2021-11-30 |
| WO2019080435A1 (en) | 2019-05-02 |
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