CN214715075U - Long-acting maintenance-free air filter - Google Patents
Long-acting maintenance-free air filter Download PDFInfo
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- CN214715075U CN214715075U CN202120773337.1U CN202120773337U CN214715075U CN 214715075 U CN214715075 U CN 214715075U CN 202120773337 U CN202120773337 U CN 202120773337U CN 214715075 U CN214715075 U CN 214715075U
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Abstract
The utility model discloses a long-acting maintenance-free air filter, belonging to the technical field of air filtering facilities, comprising an outer barrel connected with an air inlet pipeline and two layers of filter elements inside the outer barrel, wherein the outer filter element is made of a filter element material with a nanofiber membrane attached on the surface, and the longitudinal section of the outer filter element is U-shaped and sleeved outside the inner filter element; and gas channels are arranged among the outer filter element, the inner filter element and the outer barrel, and the open end of the outer filter element is connected with a dust cleaning mechanism controlled by a controller. The filter element material with the nanofiber membrane attached to the surface can block dust of 2-5 micrometers, the nanofiber membrane and the dust are insoluble, and the controller controls the ash removal mechanism to clean the dust on the outer filter element under the condition that the engine is stopped, so that the filtering efficiency and the service life of the outer filter element can be effectively improved, and the stable operation of the engine is ensured. The utility model discloses can realize automatic dust exhaust reliable operation, degree of automation is high, and the life of outer filter core can reach 2 to 3 times of ordinary outer filter core.
Description
Technical Field
The utility model belongs to the technical field of the air filtration facility, especially, relate to a long-term non-maintaining air filter.
Background
The air filter of the engineering equipment mainly adopts the technology of combining air inlet channel centrifugal filtration (or pre-filtering mixed air) and two-stage dry filtration, and ensures normal work of the filter by replacing the used air filter with a new air filter at regular intervals or blowing dust for maintaining the old air filter by using compressed air for non-regular disassembly, thereby cleaning air of an air inlet system of an engine and ensuring normal work of gas equipment and the engine.
At present, the normal work of the air filter device is ensured by replacing the filter main filter and the safety filter element (two-stage filter element) of the existing air filter device, and the filter element service life difference is large due to the fact that impurities in different ambient air are different greatly, so that the filter element cannot be used without replacing the filter element filter device, the maintenance cost in the field of equipment air filtration is increased linearly due to frequent replacement of the filter element by a client, and the use efficiency is reduced due to shutdown of the equipment. Most 95 percent of customers adopt the mode that the filter element is detached from the filter device and the dust on the surface of the filter element is cleaned by using pressure air so as to achieve the purpose of repeated use of the filter element. Because the two-stage filter medium is synthesized by standard paper pulp at present, the strength of the filter medium is not enough (not suitable for repeated use), a user frequently cleans the filter element by compressed air, in the repeated soot blowing operation of the filter paper, the pores of the filter medium are gradually enlarged by the factors such as the direction and the pressure of the compressed air, and finally the filter performance of the filter paper on dust is greatly reduced, so that the function failure of the air filter device is caused, and the requirement of cleaning air can not be met. When the engine works under the condition, the abrasion of the equipment engine is serious, the abrasion of the piston, the ring and the cylinder wall is gradually increased, and finally the engine cannot work effectively.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a long-term non-maintaining air filter, can realize the purpose that air filter is non-maintaining, outer filter core long service life, equipment use attendance height, and then reduce the expense of consumables such as outer filter core.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a long-acting maintenance-free air filtering device comprises a filtering cylinder connected with an air inlet of an engine, wherein the filtering cylinder comprises an outer cylinder and an inner filter element with openings at two ends, an outer filter element with a nanofiber membrane attached to the surface is arranged between the outer cylinder and the inner filter element, the longitudinal section of the outer filter element is U-shaped and sleeved outside the inner filter element, and the outer cylinder is of a split structure and is connected with an air inlet pipeline; and gas channels are arranged among the outer filter element, the inner filter element and the outer barrel, the open end of the outer filter element is connected with the ash removal mechanism, and the ash removal mechanism is controlled by the controller and is used for removing dust on the outer surface of the outer filter element when the machine is stopped.
Preferably, the filter cylinder is a cylinder with a horizontal central axis, and the bottom of the filter cylinder is provided with a mounting bracket; the air inlet channel is vertically arranged, and the lower end of the air inlet channel is connected with the outer barrel; the inside of interior filter core is equipped with the support frame, the top of inlet channel is equipped with the rain-proof cover of admitting air.
Preferably, the outer barrel comprises a barrel body and a barrel cover, the barrel body is movably connected with the barrel cover through a clamping sealing structure, and the barrel cover is correspondingly arranged outside the closed end of the outer filter element; the inner filter element is connected with an air inlet of the engine through an air inlet connector, and the cylinder cover and the air inlet connector are respectively arranged at two ends of the outer filter element; a raised annular sealing table is arranged on the excircle of one end of the air inlet interface connected with the engine; the other end of the air inlet connector is fixed on the outer wall of the end part of the inner filter element.
Preferably, the clamping and sealing structure comprises a buckle and a clamping seat, the clamping seat is rotatably connected with the cylinder body, one end of the buckle is rotatably connected with the clamping seat, the other end of the buckle is provided with a hook, and the edge of the cylinder cover is provided with a concave brim matched with the hook; the end surface of the barrel is provided with a boss matched with the concave eaves, and a sealing structure is arranged on a matching surface between the boss and the concave eaves.
Preferably, the ash removal mechanism comprises an air cylinder for storing compressed air, an inlet of the air cylinder is connected with an air source through a one-way air inlet valve, an outlet of the air cylinder is connected with an exhaust passage through a control valve, and the one-way air inlet valve and the control valve are both connected with the controller; the inlet of the exhaust channel is communicated with the gas channel between the outer filter element and the inner filter element and is arranged at the open end of the outer filter element; and the side wall of the outer barrel and the barrel cover are provided with ash discharge ports.
Preferably, the ash discharge openings are a plurality of, and the ash discharge openings are communicated with the gas channel between the outer filter element and the outer barrel, are arranged at the bottom of the barrel body and are annularly arranged on the peripheral edge of the barrel cover.
Preferably, the outside top of cover is equipped with the rain-proof cover in back that 270 degrees half encircles.
Preferably, the ash discharge port is provided with an ash discharge one-way valve; the control valve is a one-way control valve; and the air storage cylinder is also provided with a safety valve and a water drain valve.
Preferably, the air cylinder is arranged above the filter cylinder in parallel, the air cylinder is arranged on one side of the air inlet channel, and the air cylinder is connected with the filter cylinder through a fixing support.
Preferably, the air storage device further comprises an externally-hung compressor, and an air outlet of the compressor is connected with an inlet of the air storage cylinder.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the utility model discloses an at the surface attachment one deck nanofiber membrane of outer filter core, can block 2-5 microns dust, and nanofiber membrane has the insolubility with the dust, under the engine shut down condition, clears up the dust on the outer filter core through controller control deashing mechanism, can effectively improve the filtration efficiency and the life of outer filter core, ensures the engine even running. The utility model discloses can realize automatic dust exhaust reliable operation, degree of automation is high, and the life of outer filter core can reach 2 to 3 times of ordinary outer filter core.
Drawings
Fig. 1 is a schematic structural diagram of a long-term maintenance-free air filtering device according to an embodiment of the present invention;
FIG. 2 is a right side view of the air filtration device of FIG. 1;
FIG. 3 is a sectional view A-A of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic view of the fixing bracket and the fixing ring of FIG. 1;
fig. 6 is a side view of an embodiment of the present invention;
FIG. 7 is a view of the filter cartridge of FIG. 6 in the direction of direction G;
in the figure: 1-a filter cartridge, 101-an outer barrel, 102-an inner filter element, 103-a concave eave, 104-a boss and 105-a sealing structure; 111-cylinder body, 121-cylinder cover; 100-a gas channel;
2-an outer filter element, 3-an air inlet channel, 4-a mounting bracket, 5-an air inlet rainproof cover, 6-an air inlet connector, 7-a buckle, 8-a clamping seat, 9-a hook, 10-an air storage cylinder, 11-a one-way air inlet valve, 12-a control valve, 13-an air exhaust channel, 14-a rear rainproof cover, 15-an ash discharge one-way valve, 16-a safety valve, 17-a fixing bracket, 18-a fixing ring, 19-an opening and 20-a sealing platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the technical solutions in the embodiments of the present invention are described below clearly and completely with reference to the accompanying drawings and specific embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 3, the long-acting maintenance-free air filtering device provided by the embodiment of the present invention includes a filter cartridge 1 connected to an air inlet of an engine, where the filter cartridge 1 includes an outer cylinder 101 and an inner filter element 102 with openings at both ends, an outer filter element 2 with a nanofiber membrane attached to a surface is disposed between the outer cylinder 101 and the inner filter element 102, the longitudinal section of the outer filter element 2 is U-shaped and is sleeved outside the inner filter element 102, and the outer cylinder 101 is a split structure and is connected to an air inlet pipe 3; and gas channels 100 are arranged between the outer filter element 2 and the inner filter element 102 as well as between the outer cylinder 101, the open end of the outer filter element 2 is connected with a dust cleaning mechanism, and the dust cleaning mechanism is controlled by a controller and is used for cleaning dust on the outer filter element when the machine is stopped. Wherein, the inner filter element and the outer filter element are made of filter element materials attached with nanofiber membranes. The dust on the outer filter element can be cleaned by controlling the ash cleaning mechanism through the controller under the condition that the engine is stopped by means of the nanofiber membrane on the surface of the outer filter element, the insoluble nanofiber membrane and the dust can effectively clean the dust attached to the surface, the filtering efficiency and the service life of the inner filter element and the outer filter element are improved, and the running stability of the engine is further ensured.
As a preferred structure, as shown in fig. 1-3, the filter cartridge 1 is a cylinder with a horizontal central axis, and the bottom of the filter cartridge 1 is provided with a mounting bracket 4; the air inlet channel 3 is vertically arranged, and the lower end of the air inlet channel is connected with the outer cylinder 101; the inside of interior filter core 102 is equipped with the support frame, the top of inlet channel 3 is equipped with the rain-proof cover 5 of admitting air, can avoid rainwater and debris to get into in the cartridge filter.
In a specific embodiment of the present invention, as shown in fig. 3 and 4, the outer cylinder 101 includes a cylinder 111 and a cylinder cover 121, the cylinder 111 and the cylinder cover 121 are movably connected through a clamping sealing structure, and the cylinder cover 121 is correspondingly disposed outside the closed end of the outer filter element 2; the inner filter element 102 is connected with an air inlet of an engine through an air inlet connector 6, and the cylinder cover 121 and the air inlet connector 6 are respectively arranged at two ends of the outer filter element 2; and a raised annular sealing table 21 is arranged on the excircle of one end of the air inlet connector 3 connected with the engine, and the other end of the air inlet connector 6 is fixed on the outer wall of the end part of the inner filter element 102. The air inlet interface and the air inlet of the engine realize radial sealing through the annular sealing table, and the relative axial sealing is more reliable.
Further optimizing the technical scheme, as shown in fig. 4, the clamping and sealing structure includes a buckle 7 and a clamping seat 8, the clamping seat 8 is rotatably connected with the cylinder 111, one end of the buckle 7 is rotatably connected with the clamping seat 8, the other end of the buckle is provided with a hook 9, and the edge of the cylinder cover 121 is provided with a concave eave 103 matched with the hook 9; the end surface of the cylinder 111 is provided with a boss 104 matched with the concave eaves 103, and a sealing structure 105 is arranged on a matching surface between the boss 104 and the concave eaves 103. Wherein, the buckle is made of an elastic thick steel sheet; the sealing strip is embedded in the boss, and the sealing connection between the barrel body and the barrel cover can be realized by virtue of the sealing structure. For convenient operation, an L-shaped handle is arranged at the free end of the clamping seat. When the hook is used, the clamping seat is pulled outwards, the clamping seat drives the buckle to rotate outwards while rotating around the connecting shaft, and the matching between the hook and the concave eave is released, so that the buckle can be opened; otherwise, the hook is buckled into the inner groove of the concave eave, the clamping seat is pulled towards and tightly attached to the barrel, and the buckle can be tightened to realize the connection and fixation of the barrel cover and the barrel. The boss on the outer surface of the cylinder body can realize radial sealing between the cylinder cover and the cylinder body; simultaneously, the barrel cover can be quickly opened by matching the buckle with the clamping seat, the outer filter element can be replaced more conveniently and quickly, and the quick assembly and disassembly of the outer filter element can be realized without other tools.
In a specific embodiment of the present invention, as shown in fig. 3, the ash removing mechanism includes an air cylinder 10 for storing compressed air, an inlet of the air cylinder 10 is connected to an air source through a one-way air inlet valve 11, an outlet of the air cylinder 10 is connected to an exhaust passage 13 through a control valve 12, and both the one-way air inlet valve 11 and the control valve 12 are connected to a controller; the inlet of the exhaust channel 13 is communicated with the gas channel 100 between the outer filter element 2 and the inner filter element 102 and is arranged at the open end of the outer filter element 2; and the side wall of the outer cylinder 101 and the cylinder cover 121 are provided with ash discharge ports. The ash discharge openings are a plurality of, and the ash discharge openings are communicated with the gas channel between the outer filter element 2 and the outer cylinder 101, and are arranged at the bottom of the cylinder 111 and arranged at the peripheral edge of the cylinder cover 121 in an annular manner. Store compressed air in the air receiver, when the vehicle stopped the operation, the controller was to control valve give-out order, can carry compressed air to the cartridge filter in, and high-pressure air carries out the blowback to outer filter core, discharges through the ash discharge mouth. The arrows in FIG. 3 indicate the direction of flow of the compressed air during the ash removal operation.
In order to avoid the obstruction of the dust discharge port, as shown in fig. 3, 6 and 7, a half-enclosed rear rain cover 14 is provided above the outside of the drum cover 121, and may be made in a 270-degree half-enclosed shape. Meanwhile, the ash discharge port is provided with an ash discharge one-way valve 15; the control valve 12 is a one-way control valve. The one-way valve can realize the one-way flow of air flow, avoid the backflow, effectively improve the deashing effect. The arrows in fig. 6 and 7 indicate the direction of air flow when the engine is operating.
In order to ensure the dryness of the compressed air in the air cylinder, the air cylinder 10 is further provided with a safety valve 16 and a water discharge valve (not shown in the figure), and the dryness of the compressed air can be ensured by regularly discharging water. The volume of the air cylinder 10 is 6-15L, the specific volume can be set according to actual needs, and the ash removal needs can be met.
Further optimizes the technical proposal, and also comprises an externally hung compressor (not shown in the figure), wherein the air outlet of the compressor is connected with the inlet of the air storage cylinder 10. The structure is provided with the compressor, the ash removal operation can be realized without a vehicle-mounted air source, and the scheme is suitable for vehicles without air sources. Whereas the solution without a compressor requires the assistance of the vehicle's own air supply.
During specific installation, as shown in fig. 2, the air cylinder 10 is arranged in parallel above the filter cartridge 1, the air cylinder 10 is arranged on one side of the air inlet passage 3, and the air cylinder 10 is connected with the filter cartridge 1 through a fixing support 17.
In a specific embodiment of the present invention, as shown in fig. 1 and 5, the fixing bracket 17 is two mounting rings capable of wrapping the air cylinder 10, and the two mounting rings are conveniently sleeved at two ends of the air cylinder 10; the outside of the filter cartridge 1 is wrapped with fixing rings 18 which can be fixedly connected with the mounting bracket 4, and the two fixing rings 18 are sleeved at the two ends of the filter cartridge 1; the mounting ring and the fixing ring are provided with openings 19 matched with bolts, and after the air cylinder 10 and the filter cartridge 1 are fixed, the openings are fixed through the bolts and are fixed on an external vehicle body of the engine through the mounting support 4.
In conclusion, the utility model has the advantages of simple and compact structure, good sealing and filtering effect, the improvement of the outer filter element attached with the nanofiber membrane can improve the filtering performance, the dust attached to the surface of the outer filter element can be quickly removed under the blowing of the high-pressure compressed air, the repeated use of the outer filter element is realized, and the service life of the outer filter element is prolonged; the one-way control valve can realize automatic ash removal operation under the control of the controller, so that the automation degree is improved, and manual operation is not needed; the air inlet interface and the air inlet of the engine, and the cylinder body and the cylinder cover are all sealed in the radial direction, so that the relative axial sealing is more reliable; the barrel and the barrel cover are matched through the buckle and the clamping seat, the outer barrel can be easily opened, an additional tool is not needed, and convenience and rapidness are realized.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A long-lasting maintenance-free air filter, characterized by: the filter cartridge comprises an outer cylinder and an inner filter element with openings at two ends, an outer filter element with a nanofiber membrane attached to the surface is arranged between the outer cylinder and the inner filter element, the longitudinal section of the outer filter element is U-shaped and is sleeved outside the inner filter element, and the outer cylinder is of a split structure and is connected with an air inlet pipeline; and gas channels are arranged among the outer filter element, the inner filter element and the outer barrel, the open end of the outer filter element is connected with the ash removal mechanism, and the ash removal mechanism is controlled by the controller and is used for removing dust on the outer surface of the outer filter element when the machine is stopped.
2. The long-lasting maintenance-free air filter of claim 1, wherein: the filter cartridge is a cylinder with a horizontal central axis, and the bottom of the filter cartridge is provided with a mounting bracket; the air inlet channel is vertically arranged, and the lower end of the air inlet channel is connected with the outer barrel; the inside of interior filter core is equipped with the support frame.
3. The long-lasting maintenance-free air filter of claim 2, wherein: the outer barrel comprises a barrel body and a barrel cover, the barrel body is movably connected with the barrel cover through a clamping sealing structure, and the barrel cover is correspondingly arranged outside the closed end of the outer filter element; the inner filter element is connected with an air inlet of the engine through an air inlet connector, and the cylinder cover and the air inlet connector are respectively arranged at two ends of the outer filter element; and a raised annular sealing table is arranged on the excircle of one end of the air inlet interface connected with the engine.
4. The long-lasting maintenance-free air filter of claim 3, wherein: a semi-surrounded rear rain cover is arranged above the outer part of the barrel cover; an air inlet rainproof cover is arranged above the air inlet channel.
5. The long-lasting maintenance-free air filter of claim 3, wherein: the clamping and sealing structure comprises a buckle and a clamping seat, the clamping seat is rotatably connected with the barrel, one end of the buckle is rotatably connected with the clamping seat, the other end of the buckle is provided with a hook, and the edge of the barrel cover is provided with a concave brim matched with the hook; the end surface of the barrel is provided with a boss matched with the concave eaves, and a sealing structure is arranged on a matching surface between the boss and the concave eaves.
6. The long-term maintenance-free air filter of any one of claims 3-5, wherein: the ash removal mechanism comprises an air storage cylinder for storing compressed air, an inlet of the air storage cylinder is connected with an air source through a one-way air inlet valve, an outlet of the air storage cylinder is connected with an exhaust passage through a control valve, and the one-way air inlet valve and the control valve are both connected with a controller; the inlet of the exhaust channel is communicated with the gas channel between the outer filter element and the inner filter element and is arranged at the open end of the outer filter element; and the side wall of the outer barrel and the barrel cover are provided with ash discharge ports.
7. The long-lasting maintenance-free air filter of claim 6, wherein: the ash discharge port is a plurality of, and a plurality of ash discharge port and the gas passage between outer filter core and the urceolus communicate, and set up in the barrel bottom and be the annular all around edge of arranging in the cover.
8. The long-lasting maintenance-free air filter of claim 6, wherein: the ash discharge port is provided with an ash discharge one-way valve; the control valve is a one-way control valve; and the air storage cylinder is also provided with a safety valve and a water drain valve.
9. The long-lasting maintenance-free air filter of claim 6, wherein: the air storage device is characterized by further comprising an externally-hung compressor, and an air outlet of the compressor is connected with an inlet of the air storage cylinder.
10. The long-lasting maintenance-free air filter of claim 6, wherein: the air cylinder is arranged above the filter cartridge in parallel, arranged on one side of the air inlet channel and connected with the filter cartridge through a fixing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120773337.1U CN214715075U (en) | 2021-04-15 | 2021-04-15 | Long-acting maintenance-free air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120773337.1U CN214715075U (en) | 2021-04-15 | 2021-04-15 | Long-acting maintenance-free air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214715075U true CN214715075U (en) | 2021-11-16 |
Family
ID=78603489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120773337.1U Active CN214715075U (en) | 2021-04-15 | 2021-04-15 | Long-acting maintenance-free air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214715075U (en) |
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2021
- 2021-04-15 CN CN202120773337.1U patent/CN214715075U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230616 Address after: Room 1005, Area A, 1st Floor, Building 1, No. 29, Lane 755, Tahui Road, Shihudang Town, Songjiang District, Shanghai, 200000 Patentee after: Shanghai Filtration Intelligent Technology Co.,Ltd. Address before: Room 503, 358 Ledu Road, Songjiang District, Shanghai Patentee before: Shanghai Wanfeng enterprise consulting studio |
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| TR01 | Transfer of patent right |