Green building ventilation device

Abstract

The utility model discloses a green building ventilation device, which belongs to the technical field of building ventilation and comprises a building ventilation pipeline, a multi-stage filter assembly is arranged in an inner cavity of an air inlet end of the building ventilation pipeline, and the multi-stage filter assembly comprises a first filter screen piece, a second filter screen piece and an activated carbon filter screen arranged behind the first filter screen piece and the second filter screen piece. An inverted U-shaped support is installed on the side, back on to the second filter net piece, of the activated carbon filter net and located in an inner cavity of the building ventilation pipeline, and the two ends of the side, back on to the activated carbon filter net, of the U-shaped support are fixedly connected with supporting transverse rod pieces correspondingly. Arc-shaped air guide and noise reduction plates are hinged between the inner walls of the two sides of the U-shaped support and the inner walls of the two supporting cross rod pieces, the arc centers of the two arc-shaped air guide and noise reduction plates are centripetally arranged, and the arc-shaped curved surfaces face the inner wall of the building ventilation pipeline. And an elastic buffer component is arranged between each arc-shaped air guide and noise reduction plate and the inner wall of the adjacent supporting cross rod piece.

Description

Technical Field

[0001] The utility model belongs to the technical field of building ventilation, in particular to a green building ventilation device. Background Art

[0002] Green buildings refer to buildings that maximize resource conservation, including energy, land, water, and materials conservation, protect the environment, reduce pollution, provide people with healthy, comfortable, and efficient use of space, and coexist harmoniously with nature throughout the entire life cycle of the building. Current building ventilation ducts are often used in green buildings, but when the current ventilation ducts are in direct contact with the exhaust air flow, the exhaust air flow is prone to abnormal noise in the duct because there is no noise reduction structure inside the duct, and there is no noise reduction effect.

[0003] After searching, the existing Chinese patent publication number: CN114963382A is a green building ventilation device, including a pipeline structure, an assembly structure and a noise reduction structure; the assembly structure is detachably installed in the pipeline structure, and the pipeline structure can be spliced ​​with the help of the assembly structure; the noise reduction structure is detachably installed in the pipeline structure, and is arranged in sequence in the same direction.

[0004] The cited patent document also has the same problem. Building ventilation ducts are often used in green buildings. However, when the current ventilation ducts are in direct contact with the exhaust air flow, the exhaust air flow is prone to produce abnormal noise in the duct because there is no noise reduction structure inside the duct, and the noise reduction effect is not achieved. Utility Model Content

[0005] The utility model aims to provide a green building ventilation device to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a green building ventilation device, including a building ventilation duct, wherein a multi-stage filter assembly is arranged in the inner cavity of the air inlet end of the building ventilation duct, the multi-stage filter assembly includes a first filter mesh member and a second filter mesh member with successively smaller pore sizes and an activated carbon filter mesh arranged behind the first and second filter mesh members, the activated carbon filter mesh is installed with an inverted U-shaped bracket on the side of the activated carbon filter mesh member facing away from the second filter mesh member and located in the inner cavity of the building ventilation duct, both ends of the U-shaped bracket on the side facing away from the activated carbon filter mesh are fixedly connected to supporting cross bars, arc-shaped air guiding and noise reduction plates are hinged between the inner walls of the two side walls of the U-shaped bracket and the inner walls of the two supporting cross bars, the arc centers of the two arc-shaped air guiding and noise reduction plates are arranged centripetally and the arc surfaces face the inner wall of the building ventilation duct, and an elastic buffer component is arranged between each of the arc-shaped air guiding and noise reduction plates and the inner wall of the adjacent supporting cross bars.

[0007] Preferably, the elastic buffer component includes a buffer extrusion spring component and rubber buffer pads symmetrically installed at two ends of the buffer extrusion spring component.

[0008] Preferably, two adjacent rubber buffer pads are respectively bonded to opposite sides of the arc-shaped wind guiding and noise reducing plate and the supporting cross bar.

[0009] Preferably, hinged ear plates are welded symmetrically on the inner walls on both sides of the U-shaped bracket, and one end of each of the arc-shaped air-guiding and noise-reducing panels is hinged between two adjacent hinged ear plates via a pin rod.

[0010] Preferably, the inner wall of each of the arc-shaped air-guiding and noise-reducing panels is integrally connected with an air-guiding corrugated boss.

[0011] Preferably, the multi-stage filter assembly further comprises three installation frames for correspondingly installing the first filter mesh element, the second filter mesh element and the activated carbon filter mesh, and a plurality of connecting rods are fixedly connected between two adjacent installation frames.

[0012] Preferably, first rubber shock-absorbing abutment pads are bonded to both side outer walls of each of the mounting frames, and the first rubber shock-absorbing abutment pads elastically abut against the inner wall of the building ventilation duct.

[0013] Preferably, second rubber shock-absorbing abutment pads are bonded to both side outer walls of the U-shaped bracket and the supporting cross bar, and the second rubber shock-absorbing abutment pads elastically abut against the inner wall of the building ventilation duct.

[0014] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0015] The green building ventilation device, by setting a multi-stage filtering component, including a first filter mesh element, a second filter mesh element and an activated carbon filter mesh with successively smaller apertures, can effectively remove pollutants such as dust, bacteria, and harmful gases in the air, achieve a more refined and comprehensive air purification effect, and significantly improve indoor air quality;

[0016] The inverted U-shaped bracket and arc-shaped air-guiding and noise-reducing plate design, as well as the buffer extrusion spring and rubber buffer pads, effectively guide the smooth flow of air, reduce the direct impact of airflow and duct wall, and greatly reduce the noise during ventilation. While ensuring efficient ventilation, it creates a quieter living or working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the multi-stage filter assembly and the building ventilation duct in the disassembled state of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the connection state of the U-shaped bracket and the arc-shaped air guide and noise reduction plate of the utility model.

[0021] Description of reference numerals:

[0022] In the figure: 1. building ventilation duct; 2. removable inspection panel; 3. multi-stage filter assembly; 4. connecting ear plate; 5. mounting frame; 6. connecting rod; 7. first filter mesh member; 8. second filter mesh member; 9. activated carbon filter; 10. first rubber shock-absorbing abutment pad; 11. U-shaped bracket; 12. arc-shaped wind-guiding noise reduction plate member; 13. second rubber shock-absorbing abutment pad; 14. wind-guiding corrugated boss member; 15. supporting cross bar member; 16. hinged ear plate; 17. mounting threaded hole; 18. buffer extrusion spring member; 19. rubber buffer pad. DETAILED DESCRIPTION

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0024] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0025] This embodiment provides Figures 1 to 3A green building ventilation device shown in the figure comprises a building ventilation duct 1, a multi-stage filter assembly 3 is arranged in the inner cavity of the air inlet end of the building ventilation duct 1, a removable inspection plate 2 is installed on the top surface of the building ventilation duct 1 by bolts, the multi-stage filter assembly 3 comprises a first filter mesh member 7 and a second filter mesh member 8 with apertures decreasing successively and an activated carbon filter screen 9 arranged behind the two, the multi-stage filter assembly 3 also comprises three installation frames 5 for correspondingly installing the first filter mesh member 7, the second filter mesh member 8 and the activated carbon filter screen 9, a plurality of connecting rods 6 are fixedly connected between two adjacent installation frames 5, a first rubber shock-absorbing abutting pad 10 is bonded to the outer walls of both sides of each installation frame 5, the first rubber shock-absorbing abutting pad 10 is elastically abutted against the inner wall of the building ventilation duct 1, connecting ear plates 4 are welded at both ends of the opposite sides of the first filter mesh member 7 and the activated carbon filter screen 9, and the connecting ear plates 4 are connected to the building ventilation duct 1 by bolts.

[0026] Specifically, these filter mesh elements are arranged according to the principle of successively decreasing apertures, so as to efficiently remove pollutants of different particle sizes in the air in a progressive manner, and at the same time, the activated carbon filter 9 can remove odors.

[0027] Specifically, an inverted U-shaped bracket 11 is installed on the side of the activated carbon filter 9 facing away from the second filter 8 and located in the inner cavity of the building ventilation duct 1. Both ends of the U-shaped bracket 11 facing away from the activated carbon filter 9 are fixedly connected to supporting cross bars 15. Arc-shaped air-guiding and noise-reducing panels 12 are hinged between the inner walls of the two sides of the U-shaped bracket 11 and the inner walls of the two supporting cross bars 15. The arc centers of the two arc-shaped air-guiding and noise-reducing panels 12 are arranged centripetally and the arc-shaped curved surfaces face the inner wall of the building ventilation duct 1. An elastic buffer component is arranged between each arc-shaped air-guiding and noise-reducing panel 12 and the inner wall of the adjacent supporting cross bar 15 to further absorb vibration and reduce noise. Installation threaded holes 17 are opened on the inner walls of the two sides of the U-shaped bracket 11, and the installation threaded holes 17 are connected to the inner wall of the building ventilation duct 1 by bolts. The curved surface design of the arc-shaped air-guiding and noise-reducing panel 12 can effectively guide the airflow, reduce airflow turbulence, and reduce noise.

[0028] Specifically, the elastic buffer component includes a buffer extrusion spring component 18 and rubber buffer pads 19 symmetrically installed at both ends of the buffer extrusion spring component 18. The two adjacent rubber buffer pads 19 are respectively bonded to the opposite sides of the arc-shaped air guide and noise reduction plate 12 and the supporting cross bar 15. The rubber buffer pads 19 are symmetrically installed at both ends of the buffer extrusion spring component 18 to ensure the dynamic balance between the arc-shaped air guide and noise reduction plate 12 and the supporting cross bar 15, and effectively absorb and alleviate the vibration generated when the airflow passes through.

[0029] Specifically, hinged ear plates 16 are welded symmetrically on the inner walls of both sides of the U-shaped bracket 11, and one end of each arc-shaped air guide and noise reduction plate 12 is hinged between two adjacent hinged ear plates 16 via a pin rod.

[0030] Specifically, the inner wall of each arc-shaped air guide and noise reduction plate 12 is integrally connected with an air guide corrugated boss 14 to optimize air flow guidance and reduce air flow impact noise. Through precise design, the arc center of the plate is set centripetally to minimize air flow resistance and noise, and the surface is designed with a fine corrugated structure to help disperse the air flow and reduce air flow impact noise. The outer walls of both sides of the U-shaped bracket 11 and the supporting cross bar 15 are bonded with a second rubber shock-absorbing abutment pad 13, and the second rubber shock-absorbing abutment pad 13 elastically abuts against the inner wall of the building ventilation duct 1.

[0031] Specifically, the first rubber shock-absorbing abutment pad 10 and the U-shaped bracket 11 on the outer wall of the mounting frame 5 and the second rubber shock-absorbing abutment pad 13 on the outer wall of the supporting cross bar 15 further isolate the direct hard contact between the equipment and the pipeline wall, absorb vibrations through the elastic deformation of the rubber material, and further reduce the structural noise generated by the operation of the equipment.

[0032] Working principle:

[0033] In this green building ventilation device, air first enters the building ventilation duct 1, then passes through the first filter mesh 7 to intercept larger dust and impurities, and the second filter mesh 8 further captures smaller particles. Finally, the air passes through the activated carbon filter 9, and uses the adsorption characteristics of the activated carbon to effectively remove odors. The purified air continues to flow forward. At this time, the frame structure constructed by the inverted U-shaped bracket 11 and the supporting crossbar 15 installed behind the activated carbon filter 9 begins to play a role. The arc-shaped air guide and noise reduction plate 12 installed inside the U-shaped bracket is designed with a specific curvature and an air guide corrugated boss 14. These structures can guide the airflow to turn smoothly, avoid the airflow directly impacting the pipe wall, and reduce the noise caused by airflow turbulence;

[0034] When the air flows through, the tiny vibrations generated are effectively absorbed by elastic buffer components such as buffer extrusion spring components 18 and rubber buffer pads 19. These buffer components are installed between the arc-shaped wind guide and noise reduction plate components and the supporting crossbar components. The combined design of the spring components and the rubber pads can absorb and dissipate the vibration energy caused by the air flow, preventing the vibration from being transmitted to the building ventilation ducts, thereby greatly reducing the noise.

[0035] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A green building ventilation device, comprising a building ventilation duct (1), characterized in that: A multi-stage filter assembly (3) is arranged in the inner cavity of the air inlet end of the building ventilation duct (1), the multi-stage filter assembly (3) comprising a first filter mesh member (7) and a second filter mesh member (8) with successively smaller pore sizes, and an activated carbon filter mesh (9) arranged behind the first and second filter mesh members, the activated carbon filter mesh (9) being located on a side facing away from the second filter mesh member (8) and being located in the inner cavity of the building ventilation duct (1), an inverted U-shaped bracket (11) being installed therein, the U-shaped bracket (11) being located on a side facing away from the activated carbon filter mesh member (8). Both ends of one side of the filter screen (9) are fixedly connected to supporting cross bars (15); arc-shaped air guide and noise reduction panels (12) are hingedly connected between the inner walls of both sides of the U-shaped bracket (11) and the inner walls of the two supporting cross bars (15); the arc centers of the two arc-shaped air guide and noise reduction panels (12) are arranged concentrically and the arc surfaces face the inner wall of the building ventilation duct (1); and an elastic buffer component is arranged between each arc-shaped air guide and noise reduction panel (12) and the inner wall of the adjacent supporting cross bar (15).

2. A green building ventilation device according to claim 1, characterized in that: The elastic buffer component comprises a buffer extrusion spring component (18) and rubber buffer pads (19) symmetrically mounted at two ends of the buffer extrusion spring component (18).

3. A green building ventilation device according to claim 2, characterized in that: Two adjacent rubber buffer pads (19) are respectively bonded to opposite sides of the arc-shaped wind guide and noise reduction plate (12) and the supporting cross bar (15).

4. A green building ventilation device according to claim 3, characterized in that: Hinge ear plates (16) are welded symmetrically on both inner walls of the U-shaped bracket (11), and one end of each arc-shaped air guide and noise reduction plate (12) is hinged between two adjacent hinge ear plates (16) via a pin rod.

5. A green building ventilation device according to claim 4, characterized in that: The inner wall of each arc-shaped air guiding and noise reducing plate (12) is integrally connected with an air guiding corrugated boss member (14).

6. A green building ventilation device according to claim 5, characterized in that: The multi-stage filter assembly (3) further comprises three mounting frames (5) for mounting the first filter mesh element (7), the second filter mesh element (8), and the activated carbon filter mesh (9) respectively, and a plurality of connecting rods (6) are fixedly connected between two adjacent mounting frames (5).

7. A green building ventilation device according to claim 6, characterized in that: First rubber shock-absorbing abutment pads (10) are bonded to both side outer walls of each installation frame (5), and the first rubber shock-absorbing abutment pads (10) elastically abut against the inner wall of the building ventilation duct (1).

8. A green building ventilation device according to claim 7, characterized in that: Second rubber shock-absorbing abutment pads (13) are bonded to both side outer walls of the U-shaped bracket (11) and the supporting cross bar (15), and the second rubber shock-absorbing abutment pads (13) elastically abut against the inner wall of the building ventilation duct (1).

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