Fresh air filtering device for heating and ventilation engineering

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a fresh air filtering device for heating and ventilation engineering, which comprises a mounting frame, mounting grooves are symmetrically formed in two sides of the mounting frame, connecting sliding rails are fixedly connected in the mounting grooves, a plurality of sliding seats are connected onto the connecting sliding rails in a sliding manner, and the sliding seats are fixedly connected onto the mounting frame. Connecting plates are fixedly connected between the symmetrically arranged sliding seats, and a filter assembly is mounted between the connecting plates and comprises a large-aperture filter element, a small-aperture filter element and connecting cloth; in the using process, the density of gaps among the multiple connecting plates can be adjusted according to the air outlet volume at the air outlet, so that the large air volume can be filtered through the dense connecting plates and the filtering assemblies on the outer side of an area with the large air outlet volume; and the air is filtered through the relatively loose connecting plate and the filtering assembly on the outer side of the area with the small air outlet volume, so that the filtering effect of the whole filtering device is favorably improved.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a fresh air filtration device for HVAC engineering. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) is an important component of building construction. It primarily involves the building's thermal environment, air quality, and energy utilization. During HVAC construction, to prevent dust accumulation from damaging equipment and to avoid impurities clogging and corroding the piping system, fresh air filtration devices are typically installed to filter impurities and dust from the air. However, many current fresh air filtration devices use equally spaced filter elements. Since the airflow from the outlet is generally greater in the central area than at the edges, after a period of use, the filters in the central area will need replacement due to blockages or other problems, while the filters on the sides will continue filtering. This results in inconsistent wear and tear between the filters in the central and side areas. Utility Model Content

[0003] This utility model provides a fresh air filtration device for HVAC engineering. It features a denser connection plate and filter assembly on the outer side of the area with a large air volume to filter the large air volume, while the outer side of the area with a small air volume uses a relatively loose connection plate and filter assembly to filter the air. This helps to improve the filtration effect of the entire filtration device. In addition, it is easy to clean impurities on the large-pore filter element.

[0004] This utility model provides the following technical solution: a fresh air filtration device for HVAC engineering, including a mounting frame, mounting grooves symmetrically opened on both sides of the mounting frame, and a connecting slide rail fixedly connected inside the mounting groove, and a plurality of sliding seats slidably connected on the connecting slide rail, connecting plates fixedly connected between the symmetrically arranged sliding seats, and a filter assembly installed between the plurality of connecting plates, and the filter assembly including a large-pore filter element, a small-pore filter element and a connecting cloth, and connecting straps fixedly connected to both ends of the large-pore filter element, the small-pore filter element and the connecting cloth, and a supporting flexible rod embedded inside the connecting strap.

[0005] A cleaning chamber is formed between the large-pore filter element and the small-pore filter element.

[0006] A secondary filter screen is fixedly connected to one side of the small-diameter filter element.

[0007] A connecting frame is fixedly connected to one side of the connecting plate.

[0008] The connecting frame is internally fixed with a reinforcing rope.

[0009] The sliding seat has a limit shaft threadedly connected to its outer side.

[0010] The top of the mounting frame is fixedly connected to a mounting base.

[0011] The beneficial effects of this utility model are as follows: With the cooperation of the connecting plate and the sliding seat, the gap between several connecting plates can be adjusted according to the air volume at the air outlet during use. This allows for a denser arrangement of connecting plates and filter components on the outer side of the area with a large air volume to filter the large air volume, while a relatively looser arrangement of connecting plates and filter components filters the air on the outer side of the area with a small air volume. This helps to improve the filtration effect of the entire filtration device. In addition, with the cooperation of the large-pore filter element, the cleaning chamber, and the small-pore filter element, the filter element can separate large and small impurities after filtration during use, reducing the cleaning frequency caused by a large number of large impurities. At the same time, the cleaning chamber facilitates the cleaning of impurities on the large-pore filter element.

[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a front view schematic diagram of the structure after the spacing between several connecting plates in this utility model has been adjusted;

[0015] Figure 3 This is a three-dimensional structural diagram of the connecting plate, connecting frame, and reinforcing rope in this utility model;

[0016] Figure 4 This is a top view cross-sectional structural diagram of the filter component in this utility model.

[0017] In the diagram: 1. Mounting frame; 11. Mounting groove; 12. Connecting slide rail; 13. Mounting base; 2. Connecting plate; 21. Connecting frame; 22. Reinforcing rope; 23. Sliding seat; 231. Limiting shaft; 3. Filter assembly; 31. Large-diameter filter element; 32. Small-diameter filter element; 321. Secondary filter screen; 33. Connecting cloth; 34. Connecting belt; 341. Supporting flexible rod; 35. Cleaning chamber. Detailed Implementation

[0018] Please see Figures 1-4The present invention provides the following technical solution: a fresh air filtration device for HVAC engineering, including a mounting frame 1, mounting grooves 11 symmetrically opened on both sides of the mounting frame 1, and a connecting slide rail 12 fixedly connected inside the mounting groove 11, and a plurality of sliding seats 23 slidably connected on the connecting slide rail 12, a connecting plate 2 fixedly connected between the symmetrically arranged sliding seats 23, and a filter assembly 3 installed between the plurality of connecting plates 2, and the filter assembly 3 including a large-diameter filter element 31, a small-diameter filter element 32 and a connecting cloth 33, and a connecting strap 34 fixedly connected to both ends of the large-diameter filter element 31, the small-diameter filter element 32 and the connecting cloth 33, and a supporting flexible rod 341 embedded inside the connecting strap 34.

[0019] In this implementation scheme: the mounting frame 1 serves as the outer shell of the entire filter device, providing space for the installation of internal components and acting as a connection carrier. The mounting groove 11 inside the mounting frame 1 provides a connection carrier for the sliding seat 23, which in turn provides a connection carrier for the connecting plate 2. Several sliding seats 23 are used to adjust the spacing between several connecting plates 2, allowing the filter device to adjust the spacing between the connecting plates 2 according to the airflow pattern during use. This ensures that more densely packed connecting plates 2 are installed in areas with more airflow outlets, while more sparsely spaced connecting plates 2 are installed in areas with fewer airflow outlets, ensuring sufficient filtration in areas with more airflow outlets. The connecting plates 2 provide a connection carrier for the filter assembly 3, which is the filter element in the entire filter device used to filter impurities in the air. The filter assembly 3 includes a large-pore filter element 31 for filtering large particulate impurities in the air and a small-pore filter element 32 for filtering small particulate impurities. The connecting cloth 33 provides a carrier for connecting the connecting belt 34 and the small-pore filter element 32. With the cooperation of the connecting belt 34, the connecting cloth 33 forms the connector in the entire filter assembly 3. The support rod 341 in the connecting belt 34 provides support. During use, a gap is formed between the large-pore filter element 31 and the small-pore filter element 32 under the support of the support rod 341, allowing large particulate impurities on the large-pore filter element 31 to fall to the outside. This facilitates cleaning of the entire filter assembly 3 after long-term use and reduces the problem of decreased filtration effect caused by severe clogging of the large-pore filter element 31 during use.

[0020] A cleaning chamber 35 is formed between the large-pore filter element 31 and the small-pore filter element 32; the cleaning chamber 35 is used to provide space for large particles on the large-pore filter element 31 to fall off during cleaning.

[0021] A secondary filter screen 321 is fixedly connected to one side of the small-diameter filter element 32; the secondary filter screen 321 plays a filtering role.

[0022] A connecting frame 21 is fixedly connected to one side of the connecting plate 2; the connecting frame 21 serves as a connector.

[0023] The internal connection of the connecting frame 21 is fixed with a reinforcing rope 22; the reinforcing rope 22 plays a supporting and reinforcing role.

[0024] The outer side of the sliding seat 23 is threadedly connected to a limiting shaft 231; the limiting shaft 231 is used to fix the position of the sliding seat 23.

[0025] A mounting base 13 is fixedly connected to the top of the mounting frame 1; wherein the mounting base 13 is used to provide a connection carrier for the connection between the mounting frame 1 and the mounting component.

[0026] The working principle and usage process of this utility model are as follows: When installing the filter device, the entire filter device is first connected to the external mounting parts through the mounting base 13. Then, the spacing between several connecting plates 2 is adjusted according to the state of the air outlet. When adjusting the position of the connecting plate 2, the limiting shaft 231 is first released from the limiting position of the sliding seat 23, and then the sliding seat 23 is slid on the connecting slide rail 12. After the position adjustment of the connecting plate 2 is completed, the limiting shaft 231 is used to limit the position of the sliding seat 23 again, so that the gap of the outer connecting plate 2 is more dense in the area with a large air volume, and the gap of the outer connecting plate 2 is more sparse in the area with a small air volume. In use, the large-diameter filter element 31 is used to filter large particulate impurities in the air, while the small-diameter filter element 32 and the secondary filter screen 321 are used to filter fixed small particulate impurities in the air.

Claims

1. A fresh air filtration device for HVAC engineering, comprising a mounting frame (1), characterized in that: The mounting frame (1) has symmetrical mounting grooves (11) on both sides, and a connecting slide rail (12) is fixedly connected inside the mounting groove (11). Several sliding seats (23) are slidably connected on the connecting slide rail (12). A connecting plate (2) is fixedly connected between the symmetrically arranged sliding seats (23). A filter assembly (3) is installed between several connecting plates (2). The filter assembly (3) includes a large-pore filter element (31), a small-pore filter element (32), and a connecting cloth (33). Both ends of the large-pore filter element (31), the small-pore filter element (32), and the connecting cloth (33) are fixedly connected with connecting straps (34). A supporting flexible rod (341) is embedded inside the connecting strap (34).

2. The fresh air filtration device for HVAC engineering according to claim 1, characterized in that: A cleaning chamber (35) is formed between the large-pore filter element (31) and the small-pore filter element (32).

3. The fresh air filtration device for HVAC engineering according to claim 1, characterized in that: A secondary filter screen (321) is fixedly connected to one side of the small-diameter filter element (32).

4. The fresh air filtration device for HVAC engineering according to claim 1, characterized in that: A connecting frame (21) is fixedly connected to one side of the connecting plate (2).

5. A fresh air filtration device for HVAC engineering according to claim 4, characterized in that: The connecting frame (21) is internally fixedly connected with a reinforcing rope (22).

6. The fresh air filtration device for HVAC engineering according to claim 1, characterized in that: The outer side of the sliding seat (23) is threadedly connected to a limiting shaft (231).

7. A fresh air filtration device for HVAC engineering according to claim 1, characterized in that: The top of the mounting frame (1) is fixedly connected to a mounting base (13).

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