Modularized combined type air circulation purification equipment

The modular air circulation and purification equipment solves the problems of equipment flexibility and uneven purification, enabling flexible assembly and efficient air purification, and meeting the requirements for indoor micro-positive pressure.

CN224121382UActive Publication Date: 2026-04-14李华锋
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The high degree of integration of existing air purification equipment leads to a decrease in flexibility, making it unable to adapt to the needs of different air volumes and purification levels. The air inlet design causes air vortices and uneven purification, with the air outlet concentrated at the near end and unable to cover the far end, and it cannot meet the indoor micro-positive pressure requirements.

Method used

Adopting a modular design, the air inlet module is equipped with a side return air inlet and a fresh air inlet, drawing air in from the far end through the return air duct. Combined with chemical filter media and a fan module, the air outlet module has an adjustable direction, increasing flexibility and purification coverage.

Benefits of technology

It enables flexible module assembly according to needs, reduces air eddies, improves purification efficiency and uniformity, meets indoor micro-positive pressure requirements, and enhances the adaptability and purification effect of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224121382U_ABST
    Figure CN224121382U_ABST
Patent Text Reader

Abstract

The utility model relates to modular combined type air circulation purification equipment. The equipment comprises an air inlet module, a first filter module, a fan module, a second filter module and an air outlet module, a fresh air opening is formed in the back surface of the air inlet module; the air return port is provided with a threaded pipe and is connected with an air return long pipe through the threaded pipe; a grid air outlet is formed in the front face of the air outlet module, and the top of the air outlet module is connected with an air outlet pipe through a three-way pipe. All the modules are connected through the flanges, the modules can be selected and assembled according to needs, and therefore the requirements of different air volumes and purification grades can be met. The air inlet module is additionally provided with the return air inlet facing the side face, air vortex caused by a single air inlet is avoided, and the air inlet module serves as a mixing space of indoor return air and outdoor fresh air and can promote mixing uniformity and sufficiency. The air outlet module has both near-end air outlet and far-end air outlet, and air purification can be conducted on a specific remote area.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of air purification, and in particular to a modular combined air circulation purification device. Background Technology

[0002] Air purification equipment in industrial production workshops is prone to the following problems during use: 1. High integration reduces flexibility. Currently, the equipment is highly integrated into a fixed structure, making it impossible to adjust to handle different air volumes and purification levels. Furthermore, due to limited installation space, the fixed opening direction of the access door often encroaches on additional space, lacking flexibility. 2. A single near-end air inlet fails to address the needs of air treatment at distant locations, easily creating localized air vortices. These vortices reduce airflow velocity as it passes through the filter module, thus decreasing filtration efficiency and failing to address the air purification needs of distant or irregularly shaped spaces. Additionally, the inlet typically draws in indoor return air, resulting in insufficient mixing of outdoor fresh air and indoor return air, affecting purification performance and failing to meet the requirement of a slight positive pressure in the room. 3. Air outlets are concentrated at the near end with insufficient delivery distance, making it difficult to balance direct near-end emissions with distant duct delivery needs, requiring additional duct modifications or an increase in the number of main purification units. Utility Model Content

[0003] The purpose of this application is to provide a modular and combined air circulation and purification device, which aims to solve the problems existing in the prior art.

[0004] This application provides a modular combined air circulation and purification device, which includes an air inlet module, a first filter module, a fan module, a second filter module, and an air outlet module connected sequentially from bottom to top. The air inlet module has a return air inlet on its side and a fresh air inlet on its back. A threaded pipe is installed on the return air inlet and connected to a long return air duct through the threaded pipe. The fresh air inlet is connected to a fresh air duct, the other end of which is connected to the outdoor environment, and a valve is installed on the fresh air duct. The air outlet module has a grille air outlet on its front and a T-junction pipe connected to the top of the air outlet module.

[0005] Furthermore, adjacent modules are connected by a rectangular flange, and a rectangular surrounding groove is provided on the inner side of the rectangular flange, in which a sealing strip is installed.

[0006] Furthermore, both the first and second filter modules are equipped with chemical filter media, and pressure plates are installed at both ends of the chemical filter media, with holes distributed throughout the pressure plates.

[0007] Furthermore, the module is formed into a cube shape by stainless steel plates, and the sides of the fan module, the first filter module, and the second filter module are also provided with maintenance doors.

[0008] Furthermore, rollers are installed at the four bottom corners of the air intake module.

[0009] Furthermore, a valve is installed inside the tee pipe.

[0010] Furthermore, the device is also equipped with an additional filtration module, which is filled with physical filter media.

[0011] The beneficial effects of this utility model are as follows: This utility model is modular, with each module connected by flanges. Modules can be selected and assembled as needed to accommodate different air volumes and purification levels. The air inlet module is equipped with a side-facing return air inlet, avoiding air turbulence caused by a single inlet. Furthermore, air can be drawn in from a distance through the return air duct, better ensuring air agitation at both near and far ends, promoting effective treatment. As a mixing space for indoor return air and outdoor fresh air, the air inlet module promotes uniform and sufficient mixing. The air outlet module has both near-end and far-end air outlets, allowing for targeted air purification of specific areas at a distance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a structural schematic diagram of the air intake module of this utility model.

[0014] Figure 3 This is a side sectional view of the present invention.

[0015] Figure 4 This is a structural schematic diagram of the rectangular flange of this utility model.

[0016] Figure 5 This is a cross-sectional structural diagram of one implementation method.

[0017] In the picture:

[0018] 1. Air inlet module; 2. First filter module; 3. Fan module; 4. Second filter module; 5. Air outlet module; 6. Rectangular flange; 7. Receiving slot; 8. Sealing strip; 9. Return air inlet; 10. Fresh air inlet; 11. Threaded pipe; 12. Fresh air duct; 13. Valve; 14. Rain cover; 15. Chemical filter media; 16. Pressure plate; 17. Grille air outlet; 18. T-joint; 19. Air outlet duct; 20. Reducer; 21. Inspection door; 22. Additional filter module. Detailed Implementation

[0019] 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.

[0020] like Figures 1-4 The illustrated modular air circulation and purification device comprises multiple vertical modules, each formed into a cube by stainless steel plates. Adjacent modules are connected by rectangular flanges 6. A rectangular, surrounding groove 7 is formed on the inner side of the rectangular flange 6, and a sealing strip 8 is installed in the groove 7 to seal the modules. From bottom to top, the modules are arranged as follows: air inlet module 1, first filter module 2, fan module 3, second filter module 4, and air outlet module 5. In this embodiment, the length and width of each module are 700mm, the height of air inlet module 1 is 300mm, the height of first filter module 2 is 500mm, the height of fan module 3 is 600mm, the height of second filter module 4 is 500mm, and the height of air outlet module 5 is 300mm.

[0021] The air intake module 1 has return air inlets 9 and fresh air inlets 10 on its side. The diameter of the return air inlets 9 is smaller than that of the fresh air inlets 10. There are multiple return air inlets 9 distributed around the perimeter of the air intake module 1. There is one fresh air inlet 10 located on the rear side of the air intake module 1. A filter screen is installed inside the return air inlets 9 for initial filtration of the incoming air. A threaded pipe 11 is installed outside the return air inlets 9. The threaded pipe 11 has external threads and can be connected to a long return air pipe, through which air from a distant area can be drawn in. In conjunction with the surrounding return air inlets 9, the equipment can draw in air from four directions without relying on a single air intake, thereby reducing the formation of local air vortices inside the unit.

[0022] The fresh air inlet 10 is connected to the fresh air duct 12, the other end of which is connected to the outdoor environment for drawing in fresh air from outside. A valve 13 is installed on the fresh air duct 12; this valve can be a regulating valve or an integrated valve, which can adjust the flow rate of the fresh air, thereby controlling the ratio of return air to fresh air. A rain cover 14 and a filter are installed at the outdoor end of the fresh air duct 12 to prevent the entry of foreign objects and rainwater.

[0023] Both the first filter module 2 and the second filter module 4 are equipped with chemical filter media 15. Pressure plates 16 are installed at both the upper and lower ends of the chemical filter media 15, and the pressure plates 16 are perforated. The chemical filter media 15 is used to adsorb acidic and alkaline gases in the air through chemical methods, and conventional materials used in purification processes are selected. The chemical filter media is fixed to the pressure plates, which are installed via horizontal sliding grooves, eliminating the need to remove screws, making assembly and disassembly more convenient, and avoiding concerns about easy deformation of the sealing strip and insecure installation.

[0024] The fan module 3 is equipped with a fan to generate airflow from bottom to top.

[0025] The air outlet module 5 has a grille-shaped air outlet 17 on its side. The grille is movable, allowing for adjustable airflow direction. The top of the air outlet module 5 is connected to the air outlet pipe 19 via a T-connector 18, and a reducer 20 connects the top of the air outlet module 5 to the T-connector 18. In this embodiment, the air outlet pipe 19 is horizontally positioned, allowing air to be discharged to the left and right sides. The length of the air outlet pipe 19 is unlimited and can extend to the desired area. Preferably, a valve is installed inside the T-connector 18 to control the airflow direction.

[0026] Preferably, the return air duct installed at the return air inlet 9 extends in the same direction as the outlet duct 19, thereby drawing in and expelling air from the target area to purify the air in that area.

[0027] The fan module 3, the first filter module 2, and the second filter module 4 are also equipped with inspection doors 21, which allow for maintenance of the modules without the hassle of disassembly. The opening direction of the doors can be flexibly adjusted according to the site conditions without occupying additional space.

[0028] The air intake module 1 is equipped with casters at its four bottom corners. This facilitates the transport of the entire device during handling. The casters are typically installed using clips or bolts, and can be removed after the device is lifted.

[0029] Preferably, since the equipment is modular, an additional filter module 22 can be installed on the equipment if needed. The additional filter module 22 can be installed between any modules, such as... Figure 5 As shown, the additional filter module 22 is usually filled with physical filter media, such as activated carbon, silica gel or molecular sieves.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects.

Claims

1. A modular combined air circulation and purification device, characterized in that, The device includes, from bottom to top, an air inlet module, a first filter module, a fan module, a second filter module, and an air outlet module. The air inlet module has a return air inlet on its side and a fresh air inlet on its back. A threaded pipe is installed on the return air inlet, which is connected to a long return air duct. The fresh air inlet is connected to a fresh air duct, the other end of which is connected to the outdoor environment, and a valve is installed on the fresh air duct. The air outlet module has a grille air outlet on its front, and the top of the air outlet module is connected to the air outlet duct via a T-junction.

2. The modular combined air circulation and purification equipment according to claim 1, characterized in that, The two adjacent modules are connected by a rectangular flange. The inner side of the rectangular flange has a rectangular surrounding groove, and a sealing strip is installed in the groove.

3. The modular combined air circulation and purification equipment according to claim 1, characterized in that, Both the first and second filter modules are equipped with chemical filter media. Pressure plates are installed at both the top and bottom of the chemical filter media, and the pressure plates are covered with holes.

4. The modular combined air circulation and purification equipment according to claim 1, characterized in that, The module is formed into a cube shape by stainless steel plates, and the surfaces of the fan module, the first filter module and the second filter module are also provided with maintenance doors.

5. The modular combined air circulation and purification equipment according to claim 1, characterized in that, The air intake module is equipped with rollers at the four bottom corners.

6. The modular combined air circulation and purification equipment according to claim 1, characterized in that, A valve is installed inside the tee pipe.

7. The modular combined air circulation and purification equipment according to claim 1, characterized in that, The device is also equipped with an additional filtration module, which is filled with physical filter media.