Heating and ventilation smoke exhaust low-noise oil smoke purification and emission device

By incorporating a purification mechanism and sound insulation cotton into the range hood, combined with the design of a pressure pump and spray nozzles, the problems of lack of purification function and high noise in range hoods have been solved, achieving oil fume purification and noise reduction, and making it suitable for users of different heights.

CN224230093UActive Publication Date: 2026-05-12河北加壹建筑设计有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
河北加壹建筑设计有限公司
Filing Date
2025-03-28
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing range hoods lack oil fume purification functions, and some components generate significant noise, affecting user experience.

Method used

The system employs a purification mechanism including a pre-filter and activated carbon adsorption screen for oil fume purification, combined with a pressure pump and spray head for detergent spraying, sound insulation cotton to reduce noise, and an adjustable height design to accommodate users of different heights.

Benefits of technology

It effectively purifies cooking fumes and reduces noise, adapts to the needs of users of different heights, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224230093U_ABST
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Abstract

The utility model relates to the technical field of oil smoke purification devices, and provides a heating, ventilation and smoke exhaust low-noise oil smoke purification and emission device which comprises a device body, an installation box is arranged at the upper end of the device body, a purification mechanism is arranged in the device body, a smoke exhaust fan is fixedly connected in the installation box, and the purification mechanism is arranged in the installation box. The interior of the installation box is filled with sound insulation cotton, the purification mechanism comprises an installation frame, a front filter screen and an activated carbon adsorption net, clamping grooves are formed in the two sides of the interior of the installation frame, clamping blocks are fixedly connected to the two ends of the front filter screen and the two ends of the activated carbon adsorption net, and the front filter screen and the activated carbon adsorption net are connected with the installation frame in a clamped mode through the clamping blocks. According to the technical scheme, the problems that in the prior art, an existing range hood lacks an oil fume purification treatment function, and part of oil fume purification devices can generate large noise are solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of oil fume purification devices, specifically to a low-noise oil fume purification and emission device for HVAC exhaust. Background Technology

[0002] In the catering industry and many other industrial sectors that generate cooking fumes, fume purification and emission control devices are crucial equipment for ensuring air quality and meeting environmental protection requirements. Currently, there are various types of fume purification and emission control devices on the market, which can treat and discharge cooking fumes to a certain extent.

[0003] Most existing kitchen range hoods simply extract grease without purifying it, and some also generate significant noise, affecting user experience. Utility Model Content

[0004] This utility model proposes a low-noise oil fume purification and emission device for HVAC exhaust, which solves the problem that existing range hoods lack the function of purifying oil fumes, and some oil fume purification devices generate significant noise.

[0005] The technical solution of this utility model is as follows:

[0006] A low-noise oil fume purification and emission device for HVAC exhaust, characterized in that it comprises:

[0007] The device body has an installation box at its upper end, a purification mechanism inside the device body, and a liquid storage box fixedly connected to one of the top ends of the device body.

[0008] An exhaust fan is fixedly connected inside the mounting box, and the inside of the mounting box is filled with sound insulation cotton;

[0009] The purification mechanism includes a mounting frame, a pre-filter, and an activated carbon adsorption screen. The mounting frame has slots on both sides inside. Both ends of the pre-filter and the activated carbon adsorption screen are fixedly connected to the mounting frame via the slots.

[0010] Preferably, the purification mechanism further includes a pressure pump, which is fixedly connected inside the liquid storage box. The output end of the pressure pump is fixedly connected to a water distribution pipe, which is fixedly installed at the top of the inside of the main body of the device. A spray head is fixedly connected to the surface of the water distribution pipe.

[0011] Preferably, the main body of the device includes an outer baffle, a slider is fixedly connected to one side surface of the outer baffle, a slide is provided on the front surface of the main body of the device, the outer baffle is slidably connected to the main body of the device through the slider, and the slide decreases in size from the lower half to the upper half.

[0012] Preferably, a waste liquid tank is fixedly connected to the bottom of the main body of the device. The interior of the waste liquid tank is inclined at a small angle from right to left. A waste discharge pipe is fixedly connected to one end of the waste liquid tank, and a threaded cap is threadedly connected to one end of the waste discharge pipe.

[0013] Preferably, a connecting block is fixedly connected to the front side of the mounting box, and a press-type telescopic column is fixedly connected to the bottom end of the connecting block. The bottom end of the press-type telescopic column is fixedly connected to the top surface of the main body of the device.

[0014] Preferably, the surface of the push-to-open telescopic column is provided with a limit hole, and a push button is movably connected to the upper end of the push-to-open telescopic column.

[0015] Preferably, a bamboo tube is fixedly connected to the bottom end of the mounting box, and the bottom end of the bamboo tube is fixedly connected to the top surface of the main body of the device.

[0016] Preferably, the mounting bracket is fixedly connected to the inner top of the device body, and the top of the mounting bracket has an opening.

[0017] Preferably, the pre-filter is divided into a coarse filter and a fine filter. The coarse filter is made of a stainless steel mesh with a size of 5mm×5mm, and the fine filter is made of high-density fiber material. The activated carbon adsorption mesh is filled with activated carbon with a filling density of 500kg per square meter.

[0018] The working principle and beneficial effects of this utility model are as follows:

[0019] 1. In this utility model, by installing sound insulation cotton on the inner wall of the installation box, the noise generated by the exhaust fan during operation can be effectively reduced. The pre-filter screen performs preliminary filtration of oil fumes, intercepting smaller oil particles in the fumes. The activated carbon adsorption screen can perform deep purification of the pre-filtered oil fumes, adsorbing the residues and odors of the pre-filtered oil fumes, further improving the purification effect. The pressure pump can extract and pressurize the cleaning agent and send it to the spray head. The spray head sprays the cleaning agent onto the surface of the pre-filter screen to clean the surface of the pre-filter screen. The waste liquid tank can store the wastewater generated during cleaning, and the waste discharge pipe facilitates the discharge of wastewater.

[0020] 2. In this utility model, by setting a press-type telescopic column, the usable height between the main body of the device and the installation box can be adjusted, making it convenient for people of different heights to use. By setting the bamboo joint tube, the internal connection can still be maintained when the distance between the main body of the device and the installation box is changed. By setting a liquid storage box at the upper end of the main body of the device, cleaning agents for removing oil stains can be stored. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the main body of the device of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the mounting box of this utility model;

[0025] Figure 4 This is a schematic diagram of the purification mechanism of this utility model;

[0026] Figure 5 This is a schematic diagram of the water distribution pipe structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the outer baffle structure of this utility model;

[0028] In the diagram: 1. Main body of the device; 11. Slide rail; 12. Waste liquid tank; 13. Waste discharge pipe; 14. Outer baffle; 15. Sliding block; 16. Liquid storage box; 17. Threaded cap; 2. Mounting box; 21. Connecting block; 22. Press-type telescopic column; 23. Press button; 24. Limiting hole; 25. Exhaust fan; 26. Sound insulation cotton; 27. Bamboo tube; 3. Purification mechanism; 31. Mounting frame; 32. Slot; 33. Opening; 34. Pre-filter; 35. Activated carbon adsorption screen; 36. Locking block; 37. Pressure pump; 38. Water distribution pipe; 39. Spray head. Detailed Implementation

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0030] Example 1

[0031] like Figures 1-5 As shown, this embodiment proposes...

[0032] A low-noise oil fume purification and emission device for HVAC exhaust, characterized in that it comprises:

[0033] The device body 1 has an installation box 2 at its upper end, a purification mechanism 3 inside the device body 1, and a liquid storage box 16 fixedly connected to the top of the device body 1.

[0034] An exhaust fan 25 is fixedly connected inside the mounting box 2, and the inside of the mounting box 2 is filled with sound insulation cotton 26;

[0035] The purification mechanism 3 includes a mounting frame 31, a pre-filter 34 and an activated carbon adsorption screen 35. The mounting frame 31 has slots 32 on both sides inside. Both ends of the pre-filter 34 and the activated carbon adsorption screen 35 are fixedly connected to the mounting frame 31 through the slots 36.

[0036] The purification mechanism 3 also includes a pressure pump 37, which is fixedly connected inside the liquid storage box 16. The output end of the pressure pump 37 is fixedly connected to a water distribution pipe 38, which is fixedly installed at the top of the inside of the main body 1 of the device. A spray head 39 is fixedly connected to the surface of the water distribution pipe 38.

[0037] In this embodiment, by setting sound insulation cotton 26 on the inner wall of the installation box 2, the noise generated by the exhaust fan 25 during operation can be effectively reduced. The pre-filter 34 performs preliminary filtration of oil fumes, intercepting smaller oil particles in the fumes. The activated carbon adsorption net 35 can perform deep purification of the pre-filtered oil fumes, adsorbing the residues and odors of the pre-filtered oil fumes, further improving the purification effect. The pressure pump 37 can extract and pressurize the cleaning agent and send it to the spray head 39. The spray head 39 sprays the cleaning agent onto the surface of the pre-filter 34 to clean the surface of the pre-filter 34. The waste liquid tank 12 can store the wastewater generated during cleaning, and the waste discharge pipe 13 facilitates the discharge of wastewater.

[0038] Example 2

[0039] like Figures 1-6 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes...

[0040] The main body of the device 1 includes an outer baffle 14. A slider 15 is fixedly connected to one side surface of the outer baffle 14. A slide 11 is provided on the front surface of the main body of the device 1. The outer baffle 14 is slidably connected to the main body of the device through the slider 15. The slide 11 decreases in size from the lower half to the upper half.

[0041] Waste liquid tank 12 is fixedly connected to the bottom of the main body 1 of the device. The interior of the waste liquid tank 12 is inclined at a small angle from right to left. A waste discharge pipe 13 is fixedly connected to one end of the waste liquid tank 12. A threaded cap 17 is threadedly connected to one end of the waste discharge pipe 13.

[0042] A connecting block 21 is fixedly connected to the front side of the mounting box 2. A press-type telescopic column 22 is fixedly connected to the bottom end of the connecting block 21. The bottom end of the press-type telescopic column 22 is fixedly connected to the top surface of the device body 1.

[0043] Limiting holes 24 are provided on the surface of the push-button telescopic column 22, and a push button 23 is movably connected to the upper end of the push-button telescopic column 22.

[0044] The bottom of the mounting box 2 is fixedly connected to a bamboo tube 27, and the bottom of the bamboo tube 27 is fixedly connected to the top surface of the main body 1 of the device.

[0045] The mounting bracket 31 is fixedly connected to the top of the inside of the device body 1, and the top of the mounting bracket 31 has an opening 33.

[0046] The pre-filter 34 is divided into a coarse filter and a fine filter. The coarse filter is made of a stainless steel mesh with a size of 5mm×5mm, and the fine filter is made of high-density fiber material. The activated carbon adsorption mesh 35 is filled with activated carbon with a filling density of 500kg per square meter.

[0047] In this embodiment, by setting a press-type telescopic column 22, the usable height between the device body 1 and the installation box 2 can be adjusted, making it convenient for people of different heights to use. By setting a bamboo tube 27, the internal connection can still be maintained when the distance between the device body 1 and the installation box 2 is changed. By setting a liquid storage box 16 at the upper end of the device body 1, cleaning agent for removing oil stains can be stored.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A low-noise oil fume purification and emission device for HVAC exhaust, characterized in that, include: The device body (1) has an installation box (2) at its upper end, a purification mechanism (3) inside the device body (1), and a liquid storage box (16) fixedly connected to the top of the device body (1). The installation box (2) is fixedly connected to the inside of the smoke exhaust fan (25), and the inside of the installation box (2) is filled with sound insulation cotton (26). The purification mechanism (3) includes a mounting frame (31), a pre-filter (34) and an activated carbon adsorption screen (35). The mounting frame (31) has slots (32) on both sides inside. Both ends of the pre-filter (34) and the activated carbon adsorption screen (35) are fixedly connected with blocks (36). The pre-filter (34) and the activated carbon adsorption screen (35) are both connected to the mounting frame (31) through the blocks (36).

2. The low-noise oil fume purification and emission device for HVAC exhaust according to claim 1, characterized in that, The purification mechanism (3) also includes a pressure pump (37), which is fixedly connected inside the liquid storage box (16). The output end of the pressure pump (37) is fixedly connected to a water distribution pipe (38), which is fixedly installed at the top of the device body (1). A spray head (39) is fixedly connected to the surface of the water distribution pipe (38).

3. The low-noise oil fume purification and emission device for HVAC exhaust according to claim 1, characterized in that, The main body (1) of the device includes an outer baffle (14), a slider (15) is fixedly connected to one side surface of the outer baffle (14), a slide (11) is provided on the front surface of the main body (1), the outer baffle (14) is slidably connected to the main body (1) of the device through the slider (15), and the slide (11) decreases in size from the lower half to the upper half.

4. The low-noise oil fume purification and emission device for HVAC exhaust according to claim 1, characterized in that, The bottom end of the main body (1) of the device is fixedly connected to a waste liquid tank (12). The interior of the waste liquid tank (12) is inclined at a small angle from right to left. One end of the waste liquid tank (12) is fixedly connected to a waste discharge pipe (13), and one end of the waste discharge pipe (13) is threadedly connected to a threaded cap (17).

5. The low-noise oil fume purification and emission device for HVAC exhaust according to claim 1, characterized in that, A connecting block (21) is fixedly connected to the front side of the mounting box (2), and a press-type telescopic column (22) is fixedly connected to the bottom end of the connecting block (21). The bottom end of the press-type telescopic column (22) is fixedly connected to the top surface of the device body (1).

6. The low-noise oil fume purification and emission device for HVAC exhaust according to claim 5, characterized in that, The surface of the push-type telescopic column (22) is provided with a limiting hole (24), and the upper end of the push-type telescopic column (22) is movably connected with a push button (23).

7. The low-noise oil fume purification and emission device for HVAC exhaust according to claim 1, characterized in that, The bottom of the mounting box (2) is fixedly connected to a bamboo tube (27), and the bottom of the bamboo tube (27) is fixedly connected to the top surface of the device body (1).

8. The low-noise oil fume purification and emission device for HVAC exhaust according to claim 1, characterized in that, The mounting bracket (31) is fixedly connected to the top of the inner part of the device body (1), and the top of the mounting bracket (31) has an opening (33).

9. A low-noise oil fume purification and emission device for HVAC exhaust according to claim 1, characterized in that, The pre-filter (34) is divided into a coarse filter and a fine filter. The coarse filter is made of a stainless steel mesh with a size of 5mm×5mm, and the fine filter is made of high-density fiber material. The activated carbon adsorption mesh (35) is filled with activated carbon with a filling density of 500kg per square meter.