Negative pressure fresh air deodorization equipment for air purification

By designing extended channels and S-shaped channels in the air purification equipment, combined with filtration and deodorization structures, the problem of increased equipment size was solved, achieving efficient air purification and deodorization to meet air treatment needs.

CN224033955UActive Publication Date: 2026-03-24MERCK ENVIRONMENTAL TECH (HUNAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing deodorization equipment suffers from increased size and space occupation after adding more filtration and deodorization structures.

Method used

Design a negative pressure fresh air deodorization device, including a box, an air inlet, an air outlet, an extension channel, an air handling structure and a fan. Several filtration and deodorization structures are set in the extension channel. Air passes through the filtration and deodorization in sequence in the box. The fan promotes air flow and forms an S-shaped channel to prolong the residence time.

Benefits of technology

Without increasing the size of the equipment, the air purification effect is improved, meeting the needs of air purification and deodorization. The contact time between air and the filter and deodorization structure is increased, thus improving the purification efficiency.

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Abstract

The negative pressure fresh air deodorization equipment comprises a box body, an air inlet and an air outlet, the air inlet and the air outlet are formed in the two ends of the box body correspondingly, an extension channel, an air treatment structure and a draught fan are arranged in the position, between the air inlet and the air outlet, in the box body, and the extension channel is used for prolonging the passing distance of air in the box body; the air treatment structure is used for treating foreign matters in air, the fan is used for promoting air flow, the air treatment structure comprises a plurality of filtering structures and a plurality of deodorization structures, and the filtering structures and the deodorization structures are sequentially arranged in the extension channel; according to the design, the retention time of air in the box body can be prolonged, and a plurality of filtering structures and a plurality of deodorization structures are sequentially arranged in the extension channel, so that more filtering structures and deodorization structures can be conveniently arranged in the box body with the same volume, and the air purification effect is effectively improved; the requirements of air purification and deodorization can be better met.
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Description

Technical Field

[0001] This application relates to the field of air purification technology, and in particular to a negative pressure fresh air deodorization device for air purification. Background Technology

[0002] As people live and work, various pungent odors are often generated in indoor spaces such as garbage stations, factories, and workshops. These odors not only pollute the environment but also affect people's lives. Therefore, it is necessary to treat these odors.

[0003] Existing deodorization equipment sometimes fails to completely treat the air, still causing some environmental impact. Some have suggested increasing the number of filtration and deodorization structures in the equipment, but this would require increasing the size of the equipment and thus its space requirements. Therefore, improvements to existing deodorization equipment are necessary. Utility Model Content

[0004] The main purpose of this application is to propose a negative pressure fresh air deodorization device for air purification, which aims to solve the problem that increasing the number of filter structures and deodorization structures in existing deodorization devices requires increasing the volume of the deodorization device, thereby increasing the space occupied.

[0005] To achieve the above objectives, this application proposes a negative pressure fresh air deodorization device for air purification, comprising: a housing, an air inlet, and an air outlet, wherein the air inlet and air outlet are respectively located at both ends of the housing, and an extension channel, an air handling structure, and a fan are provided inside the housing between the air inlet and the air outlet. The extension channel is used to extend the distance that air travels through the housing, the air handling structure is used to handle foreign objects in the air, and the fan is used to promote airflow.

[0006] The air handling structure includes several filtration structures and several deodorization structures, which are sequentially arranged within the extended channel.

[0007] Optionally, the extended channel includes several partitions, which are parallel to each other and equidistant from each other. A spacer groove is formed between the partition and the inner wall of the box. Adjacent spacer grooves are staggered to form an S-shaped channel between the partitions.

[0008] Optionally, the partition and the inner wall of the box are sealed and fixedly connected to each other to avoid the location of the partition groove.

[0009] Optionally, the enclosure is provided with at least two enclosures, one for air intake into the room and the other for air exhaust into the outside.

[0010] Optionally, the air handling structure includes a fresh air handling structure and a waste air handling structure, wherein the fresh air handling structure is disposed in the housing for air intake and the waste air handling structure is disposed in the housing for air exhaust.

[0011] Optionally, the fresh air treatment structure includes a plurality of the aforementioned filter structures and a plurality of the aforementioned deodorization structures arranged sequentially from the air inlet to the air outlet, and the waste air treatment structure includes a plurality of the aforementioned filter structures, a plurality of photo-oxidation treatment structures, and a plurality of the aforementioned deodorization structures arranged sequentially from the air inlet to the air outlet.

[0012] Optionally, the fan is disposed between the air handling structure and the air outlet.

[0013] Optionally, the fan and the air handling structure are both detachably mounted inside the housing.

[0014] Optionally, the air inlet and air outlet are respectively located on the first and second opposite surfaces of the housing, and the air inlet and air outlet are symmetrically arranged.

[0015] Optionally, the air inlet and air outlet are respectively located on the third and fourth opposite sides of the housing, and the air inlet and air outlet are staggered from each other.

[0016] This technical solution involves setting up a housing, an air inlet, and an air outlet, with the inlet and outlet located at opposite ends of the housing. Inside the housing, between the inlet and outlet, is an extended channel, an air handling structure, and a fan. The extended channel extends the distance air travels within the housing, the air handling structure removes impurities from the air, and the fan promotes airflow. The air handling structure includes several filtration and deodorization structures, sequentially arranged within the extended channel. Air enters the housing through the inlet and, under the action of the fan, flows along the extended channel, passing sequentially through the filtration and deodorization structures in the air handling structure for impurity removal and deodorization, before finally exiting through the outlet. By setting up an extended channel within the housing to extend the air travel distance, the residence time of air within the housing is increased. Furthermore, the sequential arrangement of several filtration and deodorization structures within the extended channel allows for the convenient placement of a larger number of filtration and deodorization structures within the same volume of housing, enabling air to pass through more filtration and deodorization structures sequentially, thereby effectively improving air purification and better meeting air purification and deodorization needs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the external structure of the first embodiment of the negative pressure fresh air deodorization device for air purification according to this application;

[0019] Figure 2 This is a schematic diagram of the internal structure of the first embodiment of the negative pressure fresh air deodorization device for air purification according to this application;

[0020] Figure 3 This is a schematic diagram of the external structure of the second embodiment of the negative pressure fresh air deodorization device for air purification in this application;

[0021] Figure 4 This is a schematic diagram of the internal structure of the second embodiment of the negative pressure fresh air deodorization device for air purification according to this application.

[0022] Explanation of icon numbers:

[0023] 1. Housing; 101. Air inlet; 102. Air outlet; 2. Air handling structure; 210. Filter structure; 211. Filter screen; 212. Activated carbon screen; 220. Photo-oxidation treatment structure; 230. Deodorization structure; 3. Extension channel; 301. Partition; 302. Spacing groove; 4. Fan.

[0024] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0029] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0030] Existing deodorization equipment sometimes fails to completely treat the air, still causing some environmental impact. Some have suggested increasing the number of filtration and deodorization structures in the equipment, but this would require increasing the size of the equipment and thus its space requirements. Therefore, improvements to existing deodorization equipment are necessary.

[0031] In view of this, this application proposes a negative pressure fresh air deodorization device for air purification.

[0032] In the embodiments of this application, reference is made to Figures 1 to 4The aforementioned negative pressure fresh air deodorization device for air purification includes: a housing 1, an air inlet 101, and an air outlet 102. The air inlet 101 and the air outlet 102 are respectively located at both ends of the housing 1. An extension channel 3, an air handling structure 2, and a fan 4 are arranged inside the housing 1 between the air inlet 101 and the air outlet 102. The extension channel 3 is used to extend the distance that air passes through the housing 1. The air handling structure 2 is used to treat foreign objects in the air. The fan 4 is used to promote airflow. The air handling structure 2 includes several filter structures 210 and several deodorization structures 230, which are arranged sequentially in the extension channel 3.

[0033] Specifically, air enters the housing 1 through the air inlet 101 and flows along the extended channel 3 under the action of the fan 4. It passes through the filter structure 210 and the deodorization structure 230 in the air handling structure 2 in sequence to remove foreign objects and deodorize. Finally, it is discharged from the air outlet 102. The suction generated by the fan 4 promotes air flow, and the extended channel 3 increases the residence time of the air in the housing 1, so that the air handling structure 2 can fully remove foreign objects and odors in the air.

[0034] In this embodiment, reference Figure 2 The extended channel 3 includes several partitions 301, which are parallel to each other and equidistantly distributed. Spacing grooves 302 are formed between the partitions 301 and the inner wall of the housing 1. Adjacent spacing grooves 302 are staggered to form an S-shaped channel between the partitions 301. The parallel and equidistant partitions 301 form spacing grooves 302 with the inner wall of the housing 1. Adjacent spacing grooves 302 are staggered to form an S-shaped channel, extending the air flow path. This further extends the distance that air passes through the housing 1, allowing the air to fully contact the air treatment structure 2 and improving the air treatment effect.

[0035] In this embodiment, the partition 301 and the inner wall of the housing 1 are sealed and fixedly connected to the position of the partition groove 302; this ensures that air flows along the designed S-shaped extended channel 3, improving the stability and effectiveness of air treatment and preventing the leakage of untreated air.

[0036] In this embodiment, at least two boxes 1 are provided, which are used to intake air into the room and exhaust air to the outside respectively; one box 1 is used to purify fresh outdoor air and send it into the room, and the other box 1 is used to exhaust stale indoor air to the outside; by using two boxes 1 to realize the functions of air intake and exhaust respectively, the exchange and circulation of indoor and outdoor air can be realized, and the intake and exhaust air can be treated separately to improve indoor air quality.

[0037] In this embodiment, the air handling structure 2 includes a fresh air handling structure and a waste air handling structure. The fresh air handling structure is installed in the housing 1 for air intake, and the waste air handling structure is installed in the housing 1 for air exhaust. Different air handling structures 2 are set according to different requirements for air intake and exhaust. The fresh air and waste air are treated in a targeted manner to meet different air handling needs and improve the targeting and effectiveness of air handling.

[0038] In this embodiment, the fresh air treatment structure includes a plurality of filter structures 210 and a plurality of deodorization structures 230 arranged sequentially from the air inlet 101 to the air outlet 102, and the stale air treatment structure includes a plurality of filter structures 210, a plurality of photo-oxidation treatment structures 220 and a plurality of deodorization structures 230 arranged sequentially from the air inlet 101 to the air outlet 102. The fresh air treatment structure treats the fresh air sequentially through the filter structures 210 and the deodorization structures 230; the stale air treatment structure performs deep treatment on the stale air sequentially through the filter structures 210, the photo-oxidation treatment structures 220 and the deodorization structures 230; effectively removing various pollutants in the air and reducing pollution to the indoor and outdoor environments.

[0039] Specifically, the filtration structure 210 can be a filter screen 211 and an activated carbon screen 212, which intercepts dust and other particles through physical or chemical methods; the deodorization structure 230 removes odor molecules through adsorption or chemical reaction. Specifically, the deodorization structure 230 can be an ion deodorization structure 230. Under the instantaneous high-energy action of high-energy electrons, the ion deodorization structure 230 generates a large number of positive and negative ions, which can break the chemical bonds of major pollutants such as ammonia, hydrogen sulfide, and methanethiol, as well as various malodorous waste gases, decomposing them into elemental atoms, groups, or harmless molecules; the photo-oxidation treatment structure 220 uses ultraviolet light or photocatalysts to generate strong oxidizing substances to decompose harmful gases and microorganisms. Specifically, the photo-oxidation treatment structure 220 can use high-energy, high-ozone UV ultraviolet light beams to irradiate waste gases, breaking down the molecular chain structure of waste gases, so that the molecular chains of major pollutants such as ammonia, hydrogen sulfide, and methanethiol, as well as various malodorous waste gases, are degraded and transformed into low-molecular-weight compounds under the irradiation of high-energy ultraviolet light beams.

[0040] In this embodiment, the fan 4 is disposed between the air handling structure 2 and the air outlet 102; the fan 4 generates negative pressure, so that the air is first treated by the air handling structure 2, and then discharged through the fan 4 and the air outlet 102; this can prevent untreated air from coming into contact with the fan 4, thereby preventing the fan 4 from being contaminated by dust and other particulate matter in the air, and ensuring that the fan 4 works stably for a long time.

[0041] In this embodiment, the fan 4 and the air handling structure 2 are both detachably installed inside the housing 1, specifically through threaded connection or snap-fit ​​connection; the fan 4 and the air handling structure 2 can be disassembled for maintenance and replacement as needed; this facilitates equipment maintenance, repair and component replacement, reduces maintenance costs, and improves the service life and reliability of the equipment.

[0042] In the first embodiment of this application, the air inlet 101 and the air outlet 102 are respectively disposed on the first and second opposite surfaces of the housing 1, and the air inlet 101 and the air outlet 102 are symmetrically disposed with respect to each other; so that the air inlet 101 and the air outlet 102 are respectively located on the two farthest end surfaces of the housing 1, and the air inlet 101 and the air outlet 102 are on the same straight line, thereby making this structure suitable for use in scenarios where the walls are thick or the indoor and outdoor distances are large, such as situations where air treatment needs to pass through two walls.

[0043] In the second embodiment of this application, the air inlet 101 and the air outlet 102 are respectively disposed on the opposite third and fourth surfaces of the housing 1, and the air inlet 101 and the air outlet 102 are staggered from each other; when the housing 1 is disposed through the middle of the wall, under the premise of ensuring that the air inlet 101 and the air outlet 102 are located on both sides of the wall, the housing 1 can be made to overlap with the wall as much as possible, thereby reducing the space occupied by the device and improving the space utilization rate.

[0044] This technical solution involves setting up a housing, an air inlet, and an air outlet, with the inlet and outlet located at opposite ends of the housing. Inside the housing, between the inlet and outlet, is an extended channel, an air handling structure, and a fan. The extended channel extends the distance air travels within the housing, the air handling structure removes impurities from the air, and the fan promotes airflow. The air handling structure includes several filtration and deodorization structures, sequentially arranged within the extended channel. Air enters the housing through the inlet and, under the action of the fan, flows along the extended channel, passing sequentially through the filtration and deodorization structures in the air handling structure for impurity removal and deodorization, before finally exiting through the outlet. By setting up an extended channel within the housing to extend the air travel distance, the residence time of air within the housing is increased. Furthermore, the sequential arrangement of several filtration and deodorization structures within the extended channel allows for the convenient placement of a larger number of filtration and deodorization structures within the same volume of housing, enabling air to pass through more filtration and deodorization structures sequentially, thereby effectively improving air purification and better meeting air purification and deodorization needs.

[0045] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A negative pressure fresh air deodorization device for air purification, characterized in that, include: The enclosure includes an air inlet and an air outlet, with the air inlet and air outlet respectively located at both ends of the enclosure. An extension channel, an air handling structure, and a fan are provided inside the enclosure between the air inlet and the air outlet. The extension channel is used to extend the distance that air travels through the enclosure, the air handling structure is used to handle foreign objects in the air, and the fan is used to promote airflow. The air handling structure includes several filtration structures and several deodorization structures, which are sequentially arranged within the extended channel.

2. The negative pressure fresh air deodorization device for air purification as described in claim 1, characterized in that, The extended channel includes several partitions, which are parallel to each other and equidistant from each other. A gap groove is formed between the partition and the inner wall of the box. The adjacent gap grooves are staggered, so that an S-shaped channel is formed between the partitions.

3. The negative pressure fresh air deodorization device for air purification as described in claim 2, characterized in that, The partition and the inner wall of the box are sealed and fixedly connected to each other to avoid the location of the partition groove.

4. The negative pressure fresh air deodorization device for air purification as described in claim 1, characterized in that, The enclosure is provided in at least two parts, one for air intake into the room and the other for air exhaust into the outside.

5. The negative pressure fresh air deodorization device for air purification as described in claim 4, characterized in that, The air handling structure includes a fresh air handling structure and a waste air handling structure. The fresh air handling structure is installed in the housing for air intake, and the waste air handling structure is installed in the housing for air exhaust.

6. The negative pressure fresh air deodorization device for air purification as described in claim 5, characterized in that, The fresh air treatment structure includes a plurality of the aforementioned filtration structures and a plurality of the aforementioned deodorization structures arranged sequentially from the air inlet to the air outlet. The waste air treatment structure includes a plurality of the aforementioned filtration structures, a plurality of photo-oxidation treatment structures, and a plurality of the aforementioned deodorization structures arranged sequentially from the air inlet to the air outlet.

7. The negative pressure fresh air deodorization device for air purification as described in claim 1, characterized in that, The fan is positioned between the air handling structure and the air outlet.

8. The negative pressure fresh air deodorization device for air purification as described in any one of claims 1-7, characterized in that, Both the fan and the air handling structure can be detachably installed inside the housing.

9. The negative pressure fresh air deodorization device for air purification as described in claim 1, characterized in that, The air inlet and air outlet are respectively located on the first and second opposite sides of the housing, and the air inlet and air outlet are arranged symmetrically to each other.

10. The negative pressure fresh air deodorization device for air purification as described in claim 1, characterized in that, The air inlet and air outlet are respectively located on the third and fourth opposite sides of the housing, and the air inlet and air outlet are staggered from each other.