Formaldehyde steam filter

Abstract

The utility model discloses a formaldehyde steam filter. The formaldehyde steam filter comprises a shell, a filter unit and an adsorption unit, the shell is of a closed structure, an air inlet is formed in one end of the shell and used for introducing external air, and an air outlet is formed in the other end of the shell and used for discharging treated air. Due to the design of the shell, the sealing performance of the air in the filtering process is ensured, and the unfiltered air is prevented from leaking. The filter unit is arranged between the air inlet and the air outlet, the main function of the filter unit is to filter particulate matters such as dust, pollen and other small particles in the air, and by arranging the filter unit and the adsorption unit, the particulate matters and formaldehyde steam in the air can be effectively removed, and the air quality is improved. The activated carbon layer and the modified zeolite layer are both of a honeycomb structure, the contact area with air is increased, and therefore the formaldehyde steam adsorption efficiency is improved. And the formaldehyde concentration sensor on the shell can monitor the filtering effect of the filter in real time, so that the air quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, in particular to a formaldehyde vapor filter. Background Art

[0002] In modern life, the impact of indoor air quality on human health is receiving increasing attention. Indoor air pollution primarily originates from harmful gases released by building materials, furniture, and decorations, as well as pollutants such as particulate matter in outdoor air. Formaldehyde, a common indoor air pollutant, poses a potential threat to human health. Therefore, developing a filter that can effectively remove formaldehyde vapor and other particulate matter is of great practical significance.

[0003] Existing air purification technologies primarily include physical filtration and chemical adsorption. Physical filtration primarily removes airborne particulate matter through high-efficiency filter materials such as HEPA filter paper, while chemical adsorption uses materials such as activated carbon and zeolite to absorb harmful gases from the air. However, these technologies often have limitations. For example, physical filtration alone cannot effectively remove harmful gases like formaldehyde, while chemical adsorption alone may not be able to effectively remove particulate matter from the air. Utility Model Content

[0004] The purpose of the present invention is to provide a formaldehyde vapor filter to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a formaldehyde vapor filter comprising several key components, including a housing, a filtration unit, and an adsorption unit. The housing is a sealed structure with an air inlet at one end for introducing external air and an air outlet at the other end for exhausting treated air. The housing design ensures a tight seal during the filtration process, preventing leakage of unfiltered air.

[0006] The filter unit is located between the air inlet and outlet. Its main function is to filter out particulate matter in the air, such as dust, pollen, and other small particles. The filter unit usually uses high-efficiency filter materials, such as HEPA filter paper, to ensure efficient removal of particulate matter in the air.

[0007] The adsorption unit is located downstream of the filtration unit. Its primary function is to absorb formaldehyde vapor from the air. It comprises an activated carbon layer and a modified zeolite layer, each positioned separately to optimize adsorption. The activated carbon layer, located upstream of the modified zeolite layer, is the first to come into contact with formaldehyde-laden air, effectively adsorbing some of the formaldehyde vapor.

[0008] Both the activated carbon layer and the modified zeolite layer utilize a honeycomb structure, which increases the contact area with the air, thereby improving adsorption efficiency. The honeycomb structure allows air to pass more fully through the adsorption material, further enhancing the overall performance of the filter.

[0009] The housing also includes one or more formaldehyde concentration sensors located at the air outlet of the housing to monitor the filter's effectiveness in real time. The sensors can monitor formaldehyde concentration at the air outlet in real time, ensuring the filter is operating effectively and promptly detecting any degradation in filtration effectiveness.

[0010] To further enhance the filter's intelligence, the housing also includes a control unit. Based on sensor detection, the control unit automatically controls the regeneration process of the adsorption unit. Regeneration involves removing formaldehyde adsorbed on the adsorption material through heating or other methods, restoring its adsorption capacity and extending the filter's service life.

[0011] The thickness ratio of the activated carbon layer to the modified zeolite layer is 1:1 to 1:3. This ratio ensures a synergistic effect between the two layers in adsorbing formaldehyde vapor. By optimizing the thickness ratio, the best adsorption effect and filtration efficiency can be achieved.

[0012] The modified zeolite layer is impregnated with copper or silver ions to enhance its formaldehyde adsorption capacity. By utilizing the chemical properties of copper or silver ions, the modified zeolite layer enhances its ability to adsorb formaldehyde molecules, thereby improving the overall performance of the filter. This modification method not only increases adsorption efficiency but also extends the life of the adsorbent material.

[0013] Compared with existing technologies, the present invention offers the following advantages: by providing a filtration unit and an adsorption unit, it effectively removes particulate matter and formaldehyde vapor from the air, improving air quality. Both the activated carbon layer and the modified zeolite layer utilize a honeycomb structure, increasing the contact area with the air and thus improving the efficiency of adsorbing formaldehyde vapor.

[0014] The formaldehyde concentration sensor on the housing can monitor the filter's filtration effect in real time to ensure air quality. The control unit can automatically control the regeneration process of the adsorption unit based on the sensor's detection results to ensure the filter continues to work effectively.

[0015] The thickness ratio of the activated carbon layer to the modified zeolite layer is optimized to 1:1 to 1:3, helping to balance formaldehyde adsorption and regeneration efficiency. The modified zeolite layer is modified by impregnation with copper or silver ions to enhance formaldehyde adsorption capacity and improve the overall performance of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the adsorption unit of the present invention.

[0018] In the figure: 1. housing; 2. filtration unit; 3. adsorption unit; 4. sensor; 3-1. activated carbon layer; 3-2. modified zeolite layer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-2 The present invention provides a technical solution: a formaldehyde vapor filter comprising several key components, including a housing 1, a filter unit 2, and an adsorption unit 3. The housing 1 is a sealed structure with an air inlet at one end for introducing external air and an air outlet at the other end for exhausting treated air. The housing design ensures a tight seal during the filtration process, preventing leakage of unfiltered air.

[0021] The filter unit 2 is arranged between the air inlet and the air outlet. Its main function is to filter out particulate matter in the air, such as dust, pollen and other small particles. The filter unit usually adopts high-efficiency filter material, such as HEPA filter paper, to ensure efficient removal of particulate matter in the air.

[0022] Adsorption unit 3 is located downstream of filtration unit 2. Its primary function is to adsorb formaldehyde vapor from the air. Adsorption unit 3 comprises an activated carbon layer 3-1 and a modified zeolite layer 3-2, each positioned at different locations to optimize adsorption. The activated carbon layer 3-1 is located upstream of the modified zeolite layer 3-2, making it the first layer to come into contact with the formaldehyde-laden air, effectively adsorbing some of the formaldehyde vapor.

[0023] Both the activated carbon layer 3-1 and the modified zeolite layer 3-2 utilize a honeycomb structure. This design increases the contact area with the air, thereby improving adsorption efficiency. The honeycomb structure allows air to pass through the adsorption material more fully, further enhancing the overall performance of the filter.

[0024] In addition, the housing 1 includes one or more formaldehyde concentration sensors 4, which are located at the air outlet of the housing 1 and are used to monitor the filter's filtration efficiency in real time. The sensors can detect the formaldehyde concentration at the air outlet in real time, ensuring that the filter is working effectively and promptly detecting any degradation in filtration efficiency.

[0025] To further enhance the filter's intelligence, the housing also includes a control unit. Based on the detection results of sensor 4, the control unit automatically controls the regeneration process of adsorption unit 3. Regeneration involves removing formaldehyde adsorbed on the adsorption material through heating or other methods, restoring its adsorption capacity and thus extending the filter's service life.

[0026] The thickness ratio of the activated carbon layer 3-1 to the modified zeolite layer 3-2 is 1:1 to 1:3. This ratio ensures a synergistic effect between the two layers in adsorbing formaldehyde vapor. By optimizing the thickness ratio, the best adsorption effect and filtration efficiency can be achieved.

[0027] The modified zeolite layer 3-2 is modified by impregnation with copper or silver ions to enhance its formaldehyde adsorption capacity. By leveraging the chemical properties of copper or silver ions, the modified zeolite layer enhances its adsorption capacity for formaldehyde molecules, thereby improving the overall performance of the filter. This modification method not only increases adsorption efficiency but also extends the service life of the adsorbent material.

[0028] Working Principle: When the utility model is in operation, air containing formaldehyde vapor and particulate matter enters the filter through the air inlet of the housing 1. The air first passes through the filter unit 2, which is responsible for removing particulate matter in the air, such as dust, pollen, etc., to clean the air.

[0029] After passing through the filtration unit, the air continues to flow into adsorption unit 3, which consists of an activated carbon layer 3-1 and a modified zeolite layer 3-2. The activated carbon layer, located upstream, first contacts the formaldehyde vapor in the air, utilizing its porous structure and high surface area to adsorb formaldehyde molecules. The air then enters the modified zeolite layer, which has been modified by impregnation with copper or silver ions to further enhance its formaldehyde adsorption capacity.

[0030] Both the activated carbon layer 3-1 and the modified zeolite layer 3-2 are designed with a honeycomb structure to increase the contact area with the air, thereby improving the adsorption efficiency of formaldehyde vapor. A formaldehyde concentration sensor 4 is provided at the air outlet of the housing 1 to monitor the formaldehyde concentration in the filtered air in real time to evaluate the filtering effect.

[0031] The housing also contains a control unit that controls the regeneration process of adsorption unit 3 based on the detection results of sensor 4. When the activated carbon layer and modified zeolite layer reach saturation, the control unit initiates a regeneration process, which may include heating or the use of other chemicals to release the adsorbed formaldehyde and restore adsorption capacity. After these steps, clean air is discharged from the outlet, and the filter continues to operate to maintain indoor air quality.

[0032] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0033] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A formaldehyde vapor filter, characterized in that: It comprises a housing (1), a filter unit (2) and an adsorption unit (3); The housing (1) is provided with an air inlet at one end and an air outlet at the other end; The filter unit (2) is arranged between the air inlet and the air outlet, and is used to filter particulate matter in the air; The adsorption unit (3) is arranged downstream of the filter unit (2) and is used to adsorb formaldehyde vapor in the air; The adsorption unit (3) comprises an activated carbon layer (3-1) and a modified zeolite layer (3-2), wherein the activated carbon layer (3-1) is located upstream of the modified zeolite layer (3-2); The activated carbon layer (3-1) and the modified zeolite layer (3-2) both have a honeycomb structure to increase the contact area with the air.

2. A formaldehyde vapor filter according to claim 1, characterized in that: The housing further comprises one or more sensors (4) for detecting formaldehyde concentration, which are arranged at the air outlet of the housing (1) and are used to monitor the filtering effect of the filter in real time.

3. A formaldehyde vapor filter according to claim 1, characterized in that: The housing further comprises a control unit for controlling the regeneration process of the adsorption unit according to the detection result of the sensor.

4. A formaldehyde vapor filter according to claim 1, characterized in that: The thickness ratio of the activated carbon layer (3-1) to the modified zeolite layer (3-2) is 1:1 to 1:

3.

5. A formaldehyde vapor filter according to claim 1, characterized in that: The modified zeolite layer (3-2) is modified by impregnation with copper ions or silver ions to improve the adsorption capacity of formaldehyde.

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