Odor-resistant air conditioning duct
Patent Information
- Application Number
- CN202521437860.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-07-10
AI Technical Summary
然而,传统的空调通风管道在长期使用过程中,容易积累灰尘、细菌及各种异味物质,这些污染物不仅影响空气流通效率,还可能对人体健康造成潜在威胁
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, by setting multiple layers of filter materials such as non-woven fabric, synthetic fiber, activated carbon filling layer, graphene filter layer and glass fiber in the filter core, multi-stage filtration of harmful substances such as dust, bacteria and odors in the air is achieved, effectively improving air quality.
Smart Images

Figure CN224666285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning technology, specifically to an air conditioning ventilation duct that prevents odors. Background Technology
[0002] An air conditioner, also known as an air conditioner, is a device that uses artificial means to partially or completely regulate the temperature, humidity, airflow, and cleanliness of air in a closed space, so that the air parameters of the target environment meet the requirements. It generally includes cold and heat source equipment, cold and heat medium system, terminal devices, and other auxiliary equipment, mainly including water pumps, fans, and pipeline systems.
[0003] In air conditioning systems, ventilation ducts serve as crucial channels for air circulation, and their internal environment directly impacts indoor air quality. However, traditional air conditioning ventilation ducts easily accumulate dust, bacteria, and various odor substances over long-term use. These pollutants not only affect air circulation efficiency but may also pose potential threats to human health. The odor problem is particularly pronounced in humid or enclosed environments, causing discomfort to users. Therefore, effectively solving the odor problem in air conditioning ventilation ducts and improving indoor air quality has become a pressing technical challenge in the field of air conditioning technology. Utility Model Content
[0004] The purpose of this invention is to provide an odor-proof air conditioning ventilation duct to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an odor-proof air conditioning ventilation duct, including an air inlet pipe, a filter pipe at one end of the air inlet pipe, a connecting pipe at the end of the filter pipe away from the air inlet pipe, a filter cavity formed on the inner wall of the filter pipe, the filter cavity extending through both ends of the air inlet pipe and the connecting pipe, a filter core inserted into the inner wall of the filter cavity, the outer diameter of the filter core matching the inner diameter of the filter cavity, a non-woven fabric fixedly connected to the inner wall of the filter core near the air inlet pipe, a synthetic fiber fixedly connected to the end of the non-woven fabric away from the air inlet pipe, and an activated carbon filling layer filled to the end of the synthetic fiber away from the non-woven fabric.
[0006] As a further embodiment of this utility model: a graphene filter layer is fixedly connected to the end of the activated carbon filling layer away from the synthetic fiber, and a glass fiber is fixedly connected to the end of the graphene filter layer away from the activated carbon filling layer.
[0007] As a further embodiment of this utility model: the inner walls of the filter cavity located on both sides of the filter core are provided with limiting grooves, and the outer walls of the filter core that match the positions of the limiting grooves are fixedly connected with limiting blocks.
[0008] As a further improvement of this utility model: the outer diameter of both limiting blocks matches the inner diameter of the limiting groove, and both limiting blocks are slidably engaged with the limiting groove that matches their position.
[0009] As a further improvement of this utility model: the inner walls of the air inlet pipe and the connecting pipe are both provided with ventilation cavities, and the inner diameter of the two ventilation cavities is matched with the inner diameter of the filter cavity.
[0010] As a further improvement of this utility model: the intake pipe and the connecting pipe are each fixedly connected to a connecting plate at one end near the filter pipe, and the outer diameter of the two connecting plates matches the outer diameter of the filter pipe.
[0011] As a further embodiment of this utility model: multiple connecting bolts are evenly threaded through the sidewalls of the two connecting discs, and multiple threaded holes are evenly opened on the sidewalls of the filter tube and the multiple connecting bolts. The ends of the multiple connecting bolts passing through the connecting discs are threadedly connected to the threaded holes that match the positions.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, by setting multiple layers of filter materials such as non-woven fabric, synthetic fiber, activated carbon filling layer, graphene filter layer and glass fiber in the filter core, multi-stage filtration of harmful substances such as dust, bacteria and odors in the air is achieved, effectively improving air quality.
[0013] The filter core adopts a plug-in design. Through the cooperation of the limiting block and the limiting groove, the filter core can be quickly installed and removed, which makes it convenient for users to replace the filter core regularly according to actual use and ensures the durability of the filtration effect.
[0014] The air intake pipe, connecting pipe, and filter pipe are fixedly connected by connecting plates and bolts, ensuring the structural stability and sealing of the entire ventilation duct and effectively preventing air leakage and the intrusion of external pollutants. This odor-proof air conditioning ventilation duct is rationally designed and compactly structured, and can be widely used in various air conditioning systems to meet the indoor air quality requirements of different locations. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of the odor-proof air conditioning ventilation duct of this utility model.
[0016] Figure 2 This is an exploded structural diagram of the odor-proof air conditioning ventilation duct of this utility model;
[0017] Figure 3 This is an enlarged schematic diagram of the filter element separation structure in the odor-proof air conditioning ventilation duct of this utility model;
[0018] Figure 4 This utility model relates to an air conditioning ventilation duct designed to prevent odors. Figure 3 Enlarged structural diagram at point A;
[0019] Figure 5 This is an enlarged cross-sectional view of the filter core in the air conditioning ventilation duct of this utility model for preventing odors.
[0020] In the diagram: 1. Inlet pipe; 2. Connecting pipe; 3. Filter pipe; 31. Filter inner cavity; 32. Limiting groove; 33. Connecting threaded hole; 4. Connecting plate; 5. Connecting bolt; 6. Ventilation inner cavity; 7. Filter inner core; 71. Limiting block; 72. Non-woven fabric; 73. Synthetic fiber; 74. Activated carbon filling layer; 75. Graphene filter layer; 76. Glass fiber. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0023] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 utility model.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Please see Figures 1-5 In this embodiment of the utility model, the odor-proof air conditioning ventilation duct includes an air inlet pipe 1. A filter pipe 3 is provided at one end of the air inlet pipe 1, and a connecting pipe 2 is provided at the end of the filter pipe 3 away from the air inlet pipe 1. A filter inner cavity 31 is opened on the inner wall of the filter pipe 3, and the filter inner cavity 31 is opened through both ends of the air inlet pipe 1 and the connecting pipe 2. A filter inner core 7 is inserted into the inner wall of the filter inner cavity 31. The outer diameter of the filter inner core 7 matches the inner diameter of the filter inner cavity 31. A non-woven fabric 72 is fixedly connected to the inner wall of the filter inner core 7 near the air inlet pipe 1. A synthetic fiber 73 is fixedly connected to the end of the non-woven fabric 72 away from the air inlet pipe 1. An activated carbon filling layer 74 is filled at the end of the synthetic fiber 73 away from the non-woven fabric 72.
[0026] A graphene filter layer 75 is fixedly connected to the end of the activated carbon filling layer 74 away from the synthetic fiber 73, and a glass fiber 76 is fixedly connected to the end of the graphene filter layer 75 away from the activated carbon filling layer 74. Limiting grooves 32 are formed on the inner walls of the filter inner cavity 31 on both sides of the filter inner core 7, and limiting blocks 71 are fixedly connected to the outer walls of the filter inner core 7 that match the positions of the limiting grooves 32. The outer diameter of both limiting blocks 71 matches the inner diameter of the limiting grooves 32, and both limiting blocks 71 are slidably engaged with the corresponding limiting grooves 32.
[0027] Both the intake pipe 1 and the connecting pipe 2 have ventilation cavities 6 on their inner walls, and the inner diameter of the two ventilation cavities 6 matches the inner diameter of the filter cavity 31. Connecting discs 4 are fixedly connected to one end of the intake pipe 1 and the connecting pipe 2 near the filter pipe 3, and the outer diameter of the two connecting discs 4 matches the outer diameter of the filter pipe 3. Multiple connecting bolts 5 are evenly threaded through the side walls of the two connecting discs 4. Multiple threaded holes 33 are evenly provided on the side walls of the filter pipe 3 and the multiple connecting bolts 5. The multiple connecting bolts 5, passing through one end of the connecting disc 4, are threaded into the corresponding threaded holes 33.
[0028] Taking the air conditioning system of a commercial office building as an example, the building uses a central air conditioning system for centralized cooling / heating. In order to improve indoor air quality and reduce odor problems inside the ducts, it was decided to renovate and upgrade the original air conditioning ventilation ducts by adopting the odor-proof air conditioning ventilation ducts provided by this utility model.
[0029] Installation Preparation: First, determine the installation location and dimensions of the ventilation ducts based on the building structure and air conditioning system layout. Prepare the necessary components, including air inlet pipe 1, connecting pipe 2, filter pipe 3, filter core 7, connecting plate 4, connecting bolts 5, etc., and check their integrity and specification compatibility.
[0030] Installation process:
[0031] Fix the intake pipe 1 and the connecting pipe 2 in the predetermined positions to ensure that their horizontality and verticality meet the requirements.
[0032] Place the filter tube 3 between the air intake tube 1 and the connecting tube 2, align the connecting plate 4, and connect the three together tightly with the connecting bolt 5.
[0033] Insert the filter core 7 into the filter cavity 31 of the filter tube 3, ensuring that the limiting block 71 and the limiting groove 32 are fully engaged, so as to achieve a stable installation of the filter core 7.
[0034] Commissioning and Acceptance: After installation, the air conditioning system will be commissioned and tested to check the sealing of the ventilation ducts and air circulation. Simultaneously, indoor air quality indicators will be tested using professional instruments to ensure that the modified air conditioning ventilation ducts can effectively remove odors and pollutants.
[0035] The working principle of this invention is as follows: When the air conditioning system is started, outside air enters the odor-proof air conditioning ventilation duct through the air intake pipe 1. First, the air passes through the non-woven fabric layer 72 in the filter core 7, which mainly plays a preliminary filtration role, intercepting large particles of dust and impurities. Then, the air enters the synthetic fiber layer 73, which further captures fine particles through its unique fiber structure. Next, the air passes through the activated carbon filling layer 74, where the activated carbon, with its strong adsorption capacity, effectively removes odor molecules and harmful gases from the air. Afterward, the air passes through the graphene filter layer 75 and the glass fiber layer 76. These two filter materials utilize their excellent filtration performance and physical barrier function to further purify the air, ensuring that the air finally discharged into the room is fresh and healthy. Throughout the process, the multi-layered filter materials of the filter core 7 work synergistically to effectively intercept and remove various pollutants in the air.
[0036] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0037] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. An odor-proof air conditioning ventilation duct, including an air inlet pipe (1), characterized in that: A filter tube (3) is provided at one end of the air intake pipe (1), and a connecting pipe (2) is provided at the end of the filter tube (3) away from the air intake pipe (1). A filter cavity (31) is opened on the inner wall of the filter tube (3). The filter cavity (31) is opened through both ends of the air intake pipe (1) and the connecting pipe (2). A filter core (7) is inserted into the inner wall of the filter cavity (31). The outer diameter of the filter core (7) matches the inner diameter of the filter cavity (31). A non-woven fabric (72) is fixedly connected to the inner wall of the filter core (7) near the air intake pipe (1). A synthetic fiber (73) is fixedly connected to the end of the non-woven fabric (72) away from the air intake pipe (1). An activated carbon filling layer (74) is filled at the end of the synthetic fiber (73) away from the non-woven fabric (72).
2. The odor-proof air conditioning ventilation duct according to claim 1, characterized in that: A graphene filter layer (75) is fixedly connected to the end of the activated carbon filling layer (74) away from the synthetic fiber (73), and a glass fiber (76) is fixedly connected to the end of the graphene filter layer (75) away from the activated carbon filling layer (74).
3. The odor-proof air conditioning ventilation duct according to claim 1, characterized in that: The inner walls of the filter cavity (31) located on both sides of the filter core (7) are provided with limiting grooves (32), and the outer walls of the filter core (7) that match the positions of the limiting grooves (32) are fixedly connected with limiting blocks (71).
4. The odor-proof air conditioning ventilation duct according to claim 3, characterized in that: The outer diameter of both limiting blocks (71) matches the inner diameter of the limiting groove (32), and both limiting blocks (71) slide and engage with the limiting groove (32) that matches their position.
5. The odor-proof air conditioning ventilation duct according to claim 1, characterized in that: The inner walls of the air inlet pipe (1) and the connecting pipe (2) are provided with ventilation cavities (6), and the inner diameter of the two ventilation cavities (6) is matched with the inner diameter of the filter cavity (31).
6. The odor-proof air conditioning ventilation duct according to claim 1, characterized in that: The intake pipe (1) and the connecting pipe (2) are respectively fixedly connected to one end of the filter pipe (3) with a connecting plate (4), and the outer diameter of the two connecting plates (4) matches the outer diameter of the filter pipe (3).
7. The odor-proof air conditioning ventilation duct according to claim 6, characterized in that: The sidewalls of the two connecting discs (4) are evenly threaded with multiple connecting bolts (5). The sidewalls of the filter tube (3) and the multiple connecting bolts (5) are evenly provided with multiple threaded holes (33). The multiple connecting bolts (5) pass through one end of the connecting disc (4) and are threaded to the threaded holes (33) that match the position.