Preparation method of odor removal module for odor removal of new refrigerator and odor removal module

Abstract

The invention discloses a preparation method of an odor removal module for odor removal of a new refrigerator and the odor removal module, and the preparation method comprises the following steps: S1, material preparation: selecting a paper material or a PVC material as a material for preparing a shell, and selecting one or more of a non-woven fabric material, a ceramic material, an activated carbon material and a foamed nickel material as a material of a carrier; s2, a shell is prepared, specifically, a paper material or a PVC material is folded into a box body internally provided with a cavity, and a plurality of vent holes communicating with the cavity are formed in one surface of the box body for standby application; s3, preparing a multifunctional carrier, namely mixing one or more of an activated carbon material, a molecular sieve, silicon dioxide and zeolite with a multi-element metal nano catalyst, then adding an adhesive, stirring and heating to obtain a mixed liquid, then dipping the carrier obtained in the S1 into the mixed liquid, coating the surface of the carrier with the mixed liquid, and then drying to obtain the multifunctional carrier; and S4, assembling: loading the multifunctional carrier in a box body to obtain the deodorizing module.

Description

Technical Field

[0001] The present invention relates to the technical field of deodorization of new refrigerators, and in particular to a method for preparing a deodorization module for deodorizing a new refrigerator and a deodorization module. Background Art

[0002] The odor of a new refrigerator refers to the general term for the odor emitted by various materials inside the refrigerator when the new refrigerator is parked in the warehouse. The odor-producing materials mainly include HIPS liner, PP drawer, TPP tape, EPS foam, GPPS bottle frame and PE tape. Research has shown that these materials can emit gas molecules containing substances such as alkanes, aldehydes, benzene and esters.

[0003] On the one hand, the odor of a new refrigerator is not friendly to consumers, and on the other hand, it damages the image of the refrigerator factory. The main manifestation is that the odor of a new refrigerator is harmful to the human body: benzene is a carcinogen, and aldehyde can cause leukemia; for consumers, when a high-end refrigerator has a serious plastic smell or other unpleasant odors when the door is opened, consumers will feel that buying this refrigerator is unpleasant. Therefore, in order to avoid these problems, solving the odor of new refrigerators is an urgent problem that refrigerator manufacturers need to solve; There are three mainstream methods for removing odor from new refrigerators on the market: 1. activated carbon adsorption, 2. potassium permanganate oxidation, and 3. raw material control; Activated carbon adsorption uses the high-density microporous structure channels in the activated carbon to physically adsorb odor molecules in the pore structure through capillary effect, such as Patent No.: 104707160 A The disclosed refrigerator deodorizing device comprises a refrigerator fan, wherein the fan comprises a fan cover and a fan body, and is characterized in that a recessed portion is provided on the inner wall surface of the fan cover, wherein an activated carbon layer is provided in the recessed portion; the fan cover is provided with a plurality of ventilation strips. This method can adsorb odor molecules, but there is a problem of overflow of adsorbed saturated odor molecules, and the service life is short. In addition, the adsorption effect of activated carbon on aldehyde substances is poor, and it is not possible to completely achieve the adsorption and purification effect. After a period of use, when the activated carbon is saturated or inactivated, it must be replaced in time or specially treated, otherwise it will cause secondary pollution to the refrigerator. Moreover, this deodorizing device needs to be coordinated with the refrigerator after power is turned on, which is called active deodorization in the industry. For example, a refrigerator deodorizing sheet disclosed in patent number: CN2447051Y claims to solve the disadvantages of activated carbon deodorization, but it still needs to be used with the refrigerator after power is turned on. For a new refrigerator, this device is useless. The potassium permanganate method is to use the strong oxidizing property of potassium permanganate to remove the more easily reducible gas in the odor of a new refrigerator. For example, patent number: CN106620794A discloses a refrigerator deodorant and a preparation method thereof, which uses the following raw materials in weight ratio: 2 parts of component A, 2-3 parts of component B; the component A is composed of the following raw materials in weight ratio: 60-70 parts of water, 3-8 parts of potassium permanganate, 5-10 parts of ethanol, 1-3 parts of copper sulfate, 2-4 parts of lactic acid, 1-3 parts of ethylene glycol methyl ether, and 20-40 parts of zeolite molecular sieve; the component B is composed of the following raw materials in weight ratio: 35-45 parts of coconut shell charcoal, 25-35 parts of diatomaceous earth, 8-13 parts of polyvinyl acetate, 1-2 parts of antibacterial agent, and 10-25 parts of water. However, this deodorant containing potassium permanganate has no effect on gases with stable molecular structures, and the deodorizing effect is unsatisfactory; Although controlling the raw materials can reduce the occurrence of odor at the source, this method leads to huge costs for raw materials, which puts great pressure on the company's profits. Moreover, raw material control cannot completely solve the odor problem, but can only reduce the generation of odor. The new refrigerator still has odor. In view of this, a technical solution that can solve the above problems is urgently needed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art. Provided are a method for preparing a deodorization module for deodorizing a new refrigerator, and a deodorization module which has the advantages of convenient preparation, thorough adsorption, complete degradation, high performance and long life.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for preparing a deodorizing module for deodorizing a new refrigerator, characterized in that it comprises the following steps: S1: preparing materials, selecting paper material or PVC material as the material for preparing the shell, and selecting one or more composite materials of non-woven fabric material, ceramic material, activated carbon material, and nickel foam material as the carrier material; S2: preparing a shell, folding a paper material or a PVC material into a box body with a cavity inside, and preparing a plurality of vent holes communicating with the inner cavity on one surface of the box body for standby use; S3: preparing a multifunctional carrier, mixing one or more of activated carbon material, molecular sieve, silica, zeolite and multi-metal nanocatalyst, adding adhesive, stirring and heating to obtain a mixed liquid, then immersing the carrier obtained in S1 in the mixed liquid, coating the surface of the carrier with the mixed liquid, and then drying to obtain a multifunctional carrier; S4: Assembling, loading the multifunctional carrier into the box body to obtain the deodorizing module.

[0006] Using the above technical scheme, the common methods for removing odor from new refrigerators currently include activated carbon adsorption, potassium permanganate oxidation, raw material control and other schemes. Among them, activated carbon adsorption uses the high-density microporous structure channels in the activated carbon to physically adsorb odor molecules in the pore structure through capillary effect. This method can adsorb odor molecules, but there is a problem of overflow of adsorbed saturated odor molecules. Long-term use may even cause secondary pollution to the refrigerator. In addition, the adsorption effect of activated carbon on aldehydes is poor, and it cannot completely achieve the effect of adsorption and purification; the potassium permanganate method uses the strong oxidizing property of potassium permanganate to remove the more easily reducible gases in the odor of new refrigerators, but it has no effect on potassium permanganate with a stable structure; and solving the odor by controlling the raw materials can reduce the occurrence of odors at the source, but the material quality of this method is poor. The cost is huge, which creates great profit pressure for the company, and the material control cannot completely solve the problem, it can only reduce the generation of odor. The new refrigerator still has odor. The present invention adopts a synergistic scheme of adsorption-catalytic decomposition, using one or more of activated carbon materials, molecular sieves, silica, and zeolites as adsorption units. The adsorption unit captures the surrounding gas molecules, and the captured gas molecules are transferred to the surface of the catalytic unit made of a multi-metal nanocatalyst containing one or more transition elements such as manganese, cerium, iron, and zirconium. The catalytic unit catalytically decomposes the gas molecules captured by the adsorption unit. Compared with the above-mentioned single adsorption method, oxidation method, and raw material control, this scheme has great advantages. It not only avoids the problems of incomplete adsorption and incomplete degradation, but also achieves high performance, long life, and low cost.

[0007] The above-mentioned method for preparing a deodorization module for deodorizing a new refrigerator may be further configured as follows: the multifunctional carrier is repeatedly folded by a creasing machine or a crease machine before assembly to form a wavy surface.

[0008] By adopting the above technical solution, the multifunctional carrier is repeatedly folded to form a wavy surface. The multifunctional carrier will have a larger surface area and can carry more adsorption and decomposition materials (one or more of activated carbon materials, molecular sieves, silica, zeolites and multi-metal nanocatalysts), thereby improving the adsorption and catalytic decomposition efficiency.

[0009] The above-mentioned method for preparing a deodorization module for deodorizing a new refrigerator can be further configured as follows: the multi-metal nanocatalyst is a metal nanocatalyst composed of one or more transition elements selected from the group consisting of manganese, cerium, iron, and zirconium.

[0010] Using the above technical solution, there are multi-metal nanocatalysts on the market that can be used directly, but they generally only catalyze the decomposition of odor molecules. In this solution, the catalytic unit and the adsorption unit work together to achieve adsorption-catalytic decomposition. The active sites on the surface of the catalytic unit catalyze the decomposition of the polluted gas molecules captured by the adsorption unit. Under the synergistic effect, the odor molecules are processed faster and more effectively. Compared with the above-mentioned single adsorption method, oxidation method, and raw material control, this solution has great advantages. It not only avoids the problems of incomplete adsorption and incomplete degradation, but also achieves high performance, long life, and low cost.

[0011] The above-mentioned method for preparing a deodorization module for removing odors from a new refrigerator can be further configured as follows: the shell is provided with a ventilation groove communicating with the inner cavity on the other surface opposite to the ventilation hole.

[0012] By adopting the above technical solution, a large ventilation groove is opened on the other opposite surface of the shell surface where the ventilation hole is set, so as to further improve the adsorption and decomposition efficiency. Of course, this large ventilation groove can also be set as a logo or other mark, which can improve the adsorption and decomposition efficiency of the product and also promote the manufacturer.

[0013] The above-mentioned method for preparing a deodorization module for removing odor from a new refrigerator can be further configured as follows: the adhesive is an inorganic or organic glue adhesive.

[0014] By adopting the above technical scheme, the adhesive can be various inorganic and organic glue adhesives, such as inorganic glue such as clay, high clay, etc., and the organic glue can be glue containing epoxy resin, phenolic resin and other ingredients. Of course, the less odor the selected glue itself contains, the better the effect.

[0015] The present invention also provides a deodorization module, characterized in that it includes a shell with an inner cavity and a multifunctional carrier arranged in the inner cavity, a ventilation structure connected to the inner cavity is provided on the surface of the shell, the multifunctional carrier includes a carrier body and an adsorption unit arranged on the carrier body for capturing odor molecules in the refrigerator and a catalytic unit for catalytically decomposing the odor molecules captured by the adsorption unit, the adsorption unit and the catalytic unit are dip-coated on the carrier body after adding an adhesive, stirring, heating and mixing, and then the multifunctional carrier adsorbs and catalytically decomposes the odor molecules through the adsorption unit and the catalytic unit, the adsorption unit is one or more of activated carbon materials, molecular sieves, silica, and zeolites, the catalytic unit is a metal nanocatalyst containing one or more transition elements of manganese, cerium, iron, and zirconium, the carrier body is a composite of one or more non-woven fabric materials, ceramic materials, activated carbon materials, and foamed nickel materials, the ventilation structure includes ventilation holes arranged at intervals on one surface of the shell, the ventilation holes are connected to the inner cavity, and the shell is provided with ventilation grooves connected to the inner cavity on the other surface where the ventilation holes are arranged opposite to each other.

[0016] The above-mentioned technical scheme is adopted. This technical scheme adopts a synergistic scheme of adsorption-catalytic decomposition. The adsorption unit is used to capture the surrounding gas molecules. The captured gas molecules are transferred to the surface of the catalytic unit. The catalytic unit catalytically decomposes the gas molecules captured by the adsorption unit. The principle is: the porous adsorption material (adsorption unit) in the multifunctional carrier captures the odor molecules in the air. At the same time, the multi-metal nanocatalyst on the multifunctional carrier converts the oxygen in the air into active oxygen substances. These highly active oxygen substances come into contact with the captured odor molecules and decompose the odor molecules into carbon dioxide and water.

[0017] Capture mechanism: Unique pore structure, intermolecular forces Catalytic mechanism see the attached manual Figure 8 As shown, Compared with the above-mentioned single adsorption method, oxidation method, and raw material control, this solution has great advantages. It not only avoids the problems of incomplete adsorption and incomplete degradation, but also achieves high performance, long life, and low cost.

[0018] The beneficial effects of the present invention are as follows: the preparation process is simple, the adsorption unit, the catalytic unit and the carrier body work together to capture odor molecules and catalytically decompose them faster, and there are no problems such as incomplete adsorption and incomplete degradation, while achieving high performance and long life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a process flow chart of an embodiment of the present invention; Figure 2 The surface structure of the multifunctional carrier of the present invention is shown in Figure 1 after being magnified 1000 times under a microscope. Figure 1 ; Figure 3 The surface structure of the multifunctional carrier of the present invention is shown in Figure 1 after being magnified 1000 times under a microscope. Figure 2 ; Figure 4 The three-dimensional structure of the deodorizing module according to the embodiment of the present invention is shown in FIG. Figure 1 ; Figure 5 The three-dimensional structure of the deodorizing module according to the embodiment of the present invention is shown in FIG. Figure 2 ; Figure 6 A schematic diagram of the three-dimensional structure of a deodorizing module housing according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of a multifunctional carrier according to an embodiment of the present invention; Figure 8 Schematic diagram of the catalytic mechanism of an embodiment of the present invention; DETAILED DESCRIPTION

[0020] See also Figures 1 to 8 As shown, a method for preparing a deodorization module for deodorizing a new refrigerator is characterized by comprising the following steps: S1: preparing materials, selecting paper material or PVC material as the material for preparing the shell, and selecting one or more composite materials of non-woven fabric material, ceramic material, activated carbon material, and nickel foam material as the carrier material; S2: preparing a shell, folding a paper material or a PVC material into a box body with a cavity inside, and preparing a plurality of vent holes communicating with the inner cavity on one surface of the box body for standby use; S3: preparing a multifunctional carrier, mixing one or more of activated carbon material, molecular sieve, silica, zeolite and multi-metal nanocatalyst, adding adhesive, stirring and heating to obtain a mixed liquid, then immersing the carrier obtained in S1 in the mixed liquid, coating the surface of the carrier with the mixed liquid, and then drying to obtain a multifunctional carrier; S4: Assembling, loading the multifunctional carrier into the box body to obtain the deodorizing module.

[0021] At present, the common methods for removing odors from new refrigerators include activated carbon adsorption, potassium permanganate oxidation, and raw material control. Among them, activated carbon adsorption uses the high-density mesoporous structure channels in the activated carbon to physically adsorb odor molecules in the pore structure through capillary effect. This method can adsorb odor molecules, but there is a problem of overflow of adsorbed saturated odor molecules. Long-term use may even cause secondary pollution to the refrigerator. In addition, the adsorption effect of activated carbon on aldehydes is poor, and it cannot completely achieve the effect of adsorption and purification; the potassium permanganate method uses the strong oxidizing property of potassium permanganate to remove the more easily reducible gases in the odor of new refrigerators, but it has no effect on potassium permanganate with a stable structure; and solving the odor problem by controlling raw materials can reduce the occurrence of odors at the source, but the cost of materials under this method is huge. , which puts great profit pressure on the company, and the material control cannot completely solve the problem, it can only reduce the generation of odor, and the new refrigerator still has odor. The present invention adopts a synergistic scheme of adsorption catalytic decomposition, using one or more of activated carbon materials, molecular sieves, silica, and zeolites as adsorption units. The adsorption unit captures the surrounding gas molecules, and the captured gas molecules are transferred to the surface of the catalytic unit made of a multi-metal nanocatalyst containing one or more transition elements in manganese, cerium, iron, and zirconium. The catalytic unit catalytically decomposes the gas molecules captured by the adsorption unit. Compared with the above-mentioned single adsorption method, oxidation method, and raw material control, this scheme has great advantages, not only avoiding the problems of incomplete adsorption and incomplete degradation, but also achieving high performance, long life, and low cost; The multifunctional carrier is repeatedly folded by a creasing machine or a crease machine before being assembled to form a wavy surface; After the multifunctional carrier is repeatedly folded to form a wavy surface, the multifunctional carrier will have a larger surface area, and it can carry more adsorption and decomposition materials (one or more of activated carbon materials, molecular sieves, silica, zeolites and multi-metal nanocatalysts), which can improve the efficiency of adsorption and catalytic decomposition; The multi-element metal nanocatalyst is a metal nanocatalyst containing one or more transition elements of manganese, cerium, iron, and zirconium; There are multi-metal nanocatalysts that can be used directly on the market, but they generally only catalyze the decomposition of odor molecules. In this solution, the catalytic unit and the adsorption unit work together to achieve adsorption-catalytic decomposition. The active sites on the surface of the catalytic unit catalyze the decomposition of polluted gas molecules captured by the adsorption unit. Under the synergistic effect, the odor molecules are processed faster and more effectively. Compared with the above-mentioned single adsorption method, oxidation method, and raw material control, this solution has great advantages, not only avoiding the problems of incomplete adsorption and incomplete degradation, but also achieving high performance, long life, and low cost; The shell is provided with a ventilation groove communicating with the inner cavity on the other surface opposite to the ventilation hole; A large-area ventilation groove is provided on the other opposite surface of the shell where the ventilation hole is provided, so as to further improve the adsorption and decomposition efficiency. Of course, such a large-area ventilation groove can also be provided as a logo, etc., which can improve the adsorption and decomposition efficiency of the product and also promote the manufacturer; The adhesive is an inorganic or organic glue adhesive; The adhesive can be various inorganic and organic glue adhesives. Inorganic glues include clay, high clay, etc. Organic glues can be glues containing epoxy resin, phenolic resin and other ingredients. Of course, the less odor the selected glue itself contains, the better the effect; The present invention also provides a deodorizing module, comprising a shell 1 having an inner cavity 11 and a multifunctional carrier 2 arranged in the inner cavity 11, a ventilation structure arranged in communication with the inner cavity 11 is arranged on the surface of the shell 1, the multifunctional carrier comprises a carrier body 21 and an adsorption unit 22 arranged on the carrier body 21 for capturing odor molecules in the refrigerator and a catalytic unit 23 for catalytically decomposing the odor molecules captured by the adsorption unit 22, the adsorption unit 22 and the catalytic unit 23 are dip-coated on the carrier body 21 after adding an adhesive, stirring, heating and mixing, and then the multifunctional carrier 2 is dip-coated on the carrier body 21 through the adsorption unit 22 and the catalytic unit 23 The odor molecules are adsorbed and catalytically decomposed. The adsorption unit 22 is one or more of activated carbon materials, molecular sieves, silicon dioxide, and zeolite. The catalytic unit 23 is a metal nanocatalyst composed of one or more transition elements of manganese, cerium, iron, and zirconium. The carrier body 21 is a composite of one or more non-woven fabrics, ceramic materials, activated carbon materials, and nickel foam materials. The ventilation structure includes ventilation holes 12 arranged at intervals on one surface of the shell 1, and the ventilation holes 12 are connected to the inner cavity 11. The shell 1 is provided with a ventilation groove 13 connected to the inner cavity 11 on the other surface opposite to the ventilation holes 12. This technical solution adopts a synergistic solution of adsorption-catalytic decomposition, using an adsorption unit to capture surrounding gas molecules, which are transferred to the surface of the catalytic unit, and the catalytic unit catalytically decomposes the gas molecules captured by the adsorption unit. Compared with the above-mentioned single adsorption method, oxidation method, and raw material control, this solution has great advantages, not only avoiding the problems of incomplete adsorption and incomplete degradation, but also achieving high performance, long life, and low cost; The beneficial effects of the present invention are as follows: the preparation process is simple, the adsorption unit, the catalytic unit and the carrier body work together to capture odor molecules and catalytically decompose them faster, and there are no problems such as incomplete adsorption and incomplete degradation, while achieving high performance and long life.

Claims

1. A method for preparing a deodorizing module for deodorizing a new refrigerator, characterized in that: The following steps are involved: S1: preparing materials, selecting paper material or PVC material as the material for preparing the shell, and selecting one or more composite materials of non-woven fabric material, ceramic material, activated carbon material, and nickel foam material as the carrier material; S2: preparing a shell, folding a paper material or a PVC material into a box body with a cavity inside, and preparing a plurality of vent holes connected to the inner cavity on one surface of the box body for standby use; S3: preparing a multifunctional carrier, mixing one or more of activated carbon material, molecular sieve, silica, zeolite and multi-metal nanocatalyst, adding adhesive, stirring and heating to obtain a mixed liquid, then immersing the carrier obtained in S1 in the mixed liquid, coating the surface of the carrier with the mixed liquid, and then drying to obtain a multifunctional carrier; S4: Assembling, loading the multifunctional carrier into the box body to obtain the deodorizing module.

2. The method for preparing a deodorizing module for deodorizing a new refrigerator according to claim 1, characterized in that: The multifunctional carrier is repeatedly folded by a creasing machine or a crease machine before being assembled to form a wavy surface.

3. A method for preparing a deodorizing module for deodorizing a new refrigerator according to claim 1 or 2, characterized in that: The multi-element metal nanocatalyst is a metal nanocatalyst containing one or more transition elements of manganese, cerium, iron and zirconium.

4. The method for preparing a deodorizing module for deodorizing a new refrigerator according to claim 3, characterized in that: The shell is provided with a ventilation groove communicated with the inner cavity on the other surface opposite to the ventilation hole.

5. The method for preparing a deodorizing module for deodorizing a new refrigerator according to claim 4, characterized in that: The adhesive is an inorganic or organic glue adhesive.

6. A deodorization module, characterized in that: The invention comprises a shell with an inner cavity and a multifunctional carrier arranged in the inner cavity, a ventilation structure connected to the inner cavity is arranged on the surface of the shell, the multifunctional carrier comprises a carrier body and an adsorption unit arranged on the carrier body for capturing odor molecules in the refrigerator and a catalytic unit for catalytically decomposing the odor molecules captured by the adsorption unit, the adsorption unit and the catalytic unit are dip-coated on the carrier body after adding an adhesive, stirring, heating and mixing, and the multifunctional carrier adsorbs and catalytically decomposes the odor molecules through the adsorption unit and the catalytic unit, the adsorption unit is one or more of activated carbon material, molecular sieve, silicon dioxide, and zeolite, the catalytic unit is a metal nanocatalyst composed of one or more transition elements of manganese, cerium, iron, and zirconium, the carrier body is a composite of one or more of non-woven fabric material, ceramic material, activated carbon material, and foamed nickel material, the ventilation structure comprises ventilation holes arranged at intervals on one surface of the shell, the ventilation holes are connected to the inner cavity, and the shell is provided with ventilation grooves connected to the inner cavity on the other surface where the ventilation holes are arranged opposite to each other.

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