A type of knock-off self-cleaning air filter

Abstract

This utility model relates to the field of air filter technology and discloses a detonation-type self-cleaning air filter, including a main pipe, an air inlet pipe inside the main pipe, a sound wave amplification pipe fixedly installed inside the air inlet pipe, a detonation generating chamber fixedly installed at the lower end of the sound wave amplification pipe, the detonation generating chamber being a galvanized pipe, a secondary detonation pressurization chamber installed at the upper end of the detonation generating chamber, and a detonation initiation plug fixedly installed at the lower end of the detonation generating chamber. In this utility model, through precise structural design, stable amplification of the detonation wave and uniform dispersion of the clean airflow are achieved, and multi-stage filtration further improves the air filtration effect. Precise control of the detonation process ensures clean, reliable, and efficient operation. Timely exhaust of exhaust gas ensures stable operation of the device, effectively reduces fuel consumption, reduces engine wear, and extends the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and in particular to an explosion-type self-cleaning air filter. Background Technology

[0002] In actual operation scenarios, agricultural and construction machinery often need to operate in harsh environments with high dust and pollution. Under such conditions, the air filter in the engine's intake system is easily clogged by dust, leading to frequent filter replacements. This not only increases operating costs but also affects the normal operating efficiency of the equipment. Simultaneously, poor airflow increases engine intake resistance, resulting in significantly higher fuel consumption and accelerated wear of internal engine components, severely shortening the engine's lifespan.

[0003] Currently, the most common engine pre-filters on the market are of two types: cyclone pre-filters and oil bath filters. Cyclone pre-filters separate large particles of impurities through airflow rotation, but their filtration effect on fine dust is poor. While oil bath pre-filters can adsorb dust to a certain extent, their maintenance is relatively cumbersome, and they cannot meet the needs of use in extreme and harsh environments, still requiring frequent air filter cleaning. In addition, most existing backflushing air filters on the market rely on the high-pressure gas provided by the main unit for backflushing cleaning, which greatly limits their application scenarios. Adding an electric air pump to provide high-pressure gas would significantly increase equipment costs, hindering widespread adoption.

[0004] Therefore, those skilled in the art have provided an explosion-proof self-cleaning air filter to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a knock-type self-cleaning air filter. Through precise structural design, it achieves stable amplification of knock waves and uniform dispersion of clean airflow. Multi-stage filtration further enhances the air filtration effect. Precise control of the knock process ensures clean, reliable, and efficient operation. Timely exhaust of exhaust gas ensures stable operation of the device, effectively reducing fuel consumption, minimizing engine wear, and extending the service life of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A self-cleaning detonation air filter includes a main pipe, an air inlet pipe inside the main pipe, a sound amplification pipe fixedly installed inside the air inlet pipe, a detonation generating chamber fixedly installed at the lower end of the sound amplification pipe, the detonation generating chamber being a galvanized pipe, a secondary detonation pressurization chamber installed at the upper end of the detonation generating chamber, and a detonation activation plug fixedly installed at the lower end of the detonation generating chamber;

[0008] A filter cartridge housing is fixedly installed at the upper end of the main pipe. An air filter is installed inside the filter cartridge housing. Multiple hydrocyclones are fixedly installed inside one side of the filter cartridge housing. A large particle filter screen is fixedly installed on the side of the filter cartridge housing near the hydrocyclones.

[0009] Furthermore, a flow guide is fixedly installed at the upper end of the acoustic amplification tube, and the flow guide is located inside the air filter.

[0010] Furthermore, an electromagnetic gas ejector is fixedly installed at the lower end of one side of the main pipe near the detonation starter, and a control main board is embedded in the lower end of the main pipe near the electromagnetic gas ejector.

[0011] Furthermore, the upper end of the filter element housing is provided with multiple filter element buckles, and a filter element cap is attached to the upper end of the filter element housing by the multiple filter element buckles.

[0012] Furthermore, an exhaust valve is provided at the rear side of the main pipe near the lower end to discharge the exhaust gas generated by the detonation.

[0013] Furthermore, the air filter is made of high-strength fiber material of F8 filtration grade, and the pore size of the large particle filter screen is larger than the particle diameter that the hydrocyclone can filter, forming a multi-stage filtration structure.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model proposes a knock-type self-cleaning air filter. This knock-type self-cleaning air filter generates a knock wave through the instantaneous combustion of combustible gas, which drives air to backflush and clean the air filter. Compared with traditional pre-filters, the cleaning effect is more thorough. It can effectively ensure that the engine intake system maintains a low-resistance state at all times, significantly reducing the problem of increased fuel consumption caused by poor air intake, while reducing engine wear caused by impurities, thereby extending the engine's service life and improving the overall performance and reliability of the equipment.

[0016] 2. This utility model proposes a self-cleaning air filter based on detonation, which differs from backflushing air filters that rely on high-pressure gas from a main unit or an electric air pump. This device utilizes the detonation principle of combustible gas to achieve self-cleaning. The combustible gas ignites instantaneously, and the resulting shock wave pushes the air inside the pipe towards the filter element, thereby achieving the effect of cleaning the air filter. It eliminates the need for additional complex high-pressure gas supply equipment, reducing production and equipment maintenance costs. Simultaneously, it reduces the frequency of air filter replacement, further lowering operating costs and demonstrating high economic efficiency and market competitiveness. Attached Figure Description

[0017] Figure 1 This is an axonometric view of the present invention;

[0018] Figure 2This is a front view schematic diagram of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 This is a rear sectional view of the present invention.

[0021] Legend:

[0022] 1. Filter element cap; 2. Filter element clip; 3. Large particle filter screen; 4. Filter element housing; 5. Main pipe; 6. Exhaust valve; 7. Cyclone separator; 8. Air filter; 9. Flow guide; 10. Acoustic amplifier tube; 11. Control main board; 12. Electromagnetic gas ejector port; 13. Secondary detonation pressurization chamber; 14. Detonation generation chamber; 15. Detonation activation plug; 16. Inlet pipe. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1-4 An embodiment of this utility model provides: a detonation self-cleaning air filter, including a main pipe 5, an air inlet pipe 16 is provided inside the main pipe 5, an acoustic amplification pipe 10 is fixedly provided inside the air inlet pipe 16, a detonation generating chamber 14 is fixedly provided at the lower end of the acoustic amplification pipe 10, the detonation generating chamber 14 is a galvanized pipe, a secondary detonation pressurization chamber 13 is provided at the upper end of the detonation generating chamber 14, and a detonation activation plug 15 is fixedly provided at the lower end of the detonation generating chamber 14;

[0025] Specifically, after the combustible mixture is ignited by the detonation initiator plug 15 in the detonation generation chamber 14, the generated detonation wave first forms initial energy in the detonation generation chamber 14, and then enters the secondary detonation pressurization chamber 13 for secondary pressurization. Through the special structure of the sound wave amplification tube 10, the energy of the detonation wave is amplified, thereby ensuring that the detonation wave can be stably generated and effectively amplified, providing sufficient power for the subsequent cleaning of the air filter 8.

[0026] An electromagnetic gas ejector port 12 is fixedly installed at the lower end of one side of the main pipe 5 near the detonation starter plug 15, and a control main board 11 is embedded at the lower end of the main pipe 5 near the electromagnetic gas ejector port 12.

[0027] Specifically, the control board 11 controls the gas injection volume of the electromagnetic gas injector 12 and the ignition timing of the detonation starter plug 15 according to the set program, so that the combustible gas such as propane is mixed with air at a volume ratio of 1:10-1:15 and then enters the detonation generation chamber 14 through the electromagnetic gas injector 12. This achieves precise control of the gas mixing ratio and ignition timing, ensures stable detonation, and improves the reliability and efficiency of air filter 8 cleaning.

[0028] A filter cartridge housing 4 is fixedly installed at the upper end of the main pipe 5. An air filter 8 is installed inside the filter cartridge housing 4. Multiple hydrocyclones 7 are fixedly installed inside one side of the filter cartridge housing 4. A large particle filter screen 3 is fixedly installed on the side of the filter cartridge housing 4 near the hydrocyclones 7. A flow guide shroud 9 is installed inside the air filter 8. The air filter 8 is made of high-strength fiber material of F8 filtration grade. The pore size of the large particle filter screen 3 is larger than the particle diameter that the hydrocyclones 7 can filter, forming a multi-stage filtration structure. Multiple filter cartridge buckles 2 are installed at the upper end of the filter cartridge housing 4. A filter cartridge cover 1 is snapped onto the upper end of the filter cartridge housing 4 by multiple filter cartridge buckles 2.

[0029] Specifically, this product is used as a pre-filter, connected in series with the original vehicle's engine air filter 8. Dust first passes through the intake external guard to filter out large impurities, then through the cyclone separator to filter out coarse particles, and finally through the air filter 8 for a fine filtration of 0.5% of the dust before entering the original vehicle air filter 8. After the air filter 8 filters the dust, the shock wave generated by the knocking action blows the dust out of the air filter 8, achieving maintenance-free air filter 8. Outside air first passes through the large particle filter 3 to filter out larger particles, then through the cyclone separator 7 to further separate smaller particles, and finally through the air filter 8 for fine filtration. When cleaning is required, the pressurized gas and sound waves generated by the amplified knocking action are evenly dispersed into the air filter 8 through the guide shroud 9, blowing off the dust adsorbed on the filter element wall from the inside out. Ultimately, the multi-stage filtration structure effectively improves the air filtration effect and extends the service life of the air filter 8; the guide shroud 9 ensures that the clean airflow acts evenly on the air filter 8, improving the cleaning effect.

[0030] An exhaust valve 6 is installed at the rear side of the main pipe 5 near the lower end to discharge the exhaust gas generated by the knocking.

[0031] Specifically, after the detonation cleaning is completed, the exhaust valve 6 automatically opens to discharge the exhaust gas generated by the detonation in a timely manner, avoiding the residual exhaust gas from affecting the normal operation of the equipment and the effect of the next detonation cleaning, and ultimately ensuring a good gas environment inside the equipment and ensuring the continuous and stable operation of the air filter 8.

[0032] Working Principle: This detonation-type self-cleaning air filter 8 mainly consists of three parts: the main shell, the filter element, and the detonation generator. During operation, combustible gas such as propane is introduced and fully mixed with air through the electromagnetic gas injector 12 before entering the detonation generation chamber 14. Inside the chamber 14, the combustible mixture is ignited by the detonation initiator 15, generating a detonation. The energy generated by the detonation causes the gas to expand rapidly, forming an initial detonation wave. This wave propagates upwards to the secondary detonation pressurization chamber 13 for secondary pressurization. The pressurized wave then enters the amplification channel through the Z-shaped acoustic amplification tube 10. Under the action of the acoustic amplification tube 10, the detonation wave pushes the air inside the tube, forming a sound wave and pressurized gas with strong kinetic energy. These gases and sound waves are evenly dispersed into the air filter 8 through the guide shroud 9, generating a powerful airflow impact from inside the air filter 8, blowing off the dust adsorbed on the filter element wall, thus achieving automatic backflushing cleaning of the air filter 8. The large particle filter screen 3 and multiple cyclones 7 perform preliminary filtration of the incoming air, reducing the filtration burden on the air filter 8, improving the overall filtration efficiency, and enabling the instantaneous ignition of combustible gas. The resulting shock wave pushes the air inside the pipe and blows it toward the filter element, thereby achieving the effect of cleaning the air filter 8.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning air filter with detonation capability, comprising a main pipe (5), characterized in that: An air inlet pipe (16) is provided inside the main pipe (5). An acoustic amplification pipe (10) is fixedly installed inside the air inlet pipe (16). A detonation chamber (14) is fixedly installed at the lower end of the acoustic amplification pipe (10). The detonation chamber (14) is a galvanized pipe. A secondary detonation pressurization chamber (13) is provided at the upper end of the detonation chamber (14). A detonation activation plug (15) is fixedly installed at the lower end of the detonation chamber (14). A filter element housing (4) is fixedly installed at the upper end of the main pipe (5). An air filter (8) is installed inside the filter element housing (4). Multiple hydrocyclones (7) are fixedly installed inside one side of the filter element housing (4). A large particle filter screen (3) is fixedly installed on the side of the filter element housing (4) near the hydrocyclones (7).

2. The knock type self-cleaning air filter according to claim 1, wherein: The upper end of the acoustic amplification tube (10) is fixedly provided with a flow guide (9), which is located inside the air filter (8).

3. The knock type self-cleaning air filter according to claim 1, wherein: An electromagnetic gas ejector port (12) is fixedly installed at the lower end of one side of the main pipe (5) near the detonation start plug (15), and a control motherboard (11) is embedded at the lower end of the main pipe (5) near the electromagnetic gas ejector port (12).

4. The knock-type self-cleaning air filter according to claim 1, characterized in that: The upper end of the filter element housing (4) is provided with multiple filter element buckles (2), and the upper end of the filter element housing (4) is provided with a filter element cover (1) by multiple filter element buckles (2).

5. The knock-type self-cleaning air filter according to claim 1, characterized in that: An exhaust valve (6) is provided on the rear side of the main pipe (5) near the lower end to discharge the exhaust gas generated by the detonation.

6. The knock-type self-cleaning air filter according to claim 1, wherein: The air filter (8) is made of high-strength fiber material of F8 filtration grade. The pore size of the large particle filter screen (3) is larger than the particle diameter that the hydrocyclone (7) can filter, forming a multi-stage filtration structure.

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