CN217481427U - Air filter who contains prefilter - Google Patents
Air filter who contains prefilter Download PDFInfo
- Publication number
- CN217481427U CN217481427U CN202220448556.7U CN202220448556U CN217481427U CN 217481427 U CN217481427 U CN 217481427U CN 202220448556 U CN202220448556 U CN 202220448556U CN 217481427 U CN217481427 U CN 217481427U
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- Prior art keywords
- prefilter
- air
- air inlet
- secondary filter
- air cleaner
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- 238000011045 prefiltration Methods 0.000 title claims abstract description 78
- 239000000428 dust Substances 0.000 claims abstract description 32
- 238000000605 extraction Methods 0.000 claims abstract description 19
- 210000001503 joint Anatomy 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000001914 filtration Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 14
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides an air cleaner who contains prefilter can effectively solve the air cleaner and maintain the problem that the maintenance time is short, has realized promoting the target of maintenance cycle. The air cleaner includes: the device comprises a dust extraction fan, an air inlet channel, a prefilter and a secondary filter; an air outlet of the air inlet channel is in sealed butt joint with an air inlet of the prefilter; the dust extraction fan is communicated with the prefilter and is used for discharging the dust or the solid particles separated by the prefilter; the air outlet of the prefilter is hermetically butted with the air inlet of the secondary filter; and the air outlet of the secondary filter is connected with an air outlet pipe.
Description
Technical Field
The utility model relates to an engine air intake system technical field, concretely relates to air cleaner who contains prefilter.
Background
Due to the limitation of space and weight, the air filter of the light-duty wheel type special vehicle usually adopts a blade ring prefilter and a cylindrical filter element structure, and the maintenance period of the air filter is short due to the low efficiency of the blade ring prefilter, so that the maneuvering deployment capability of the vehicle is severely restricted. Particularly in desert, gobi and other areas, vehicles always run in a high-concentration dust environment and fine dust particles in the process of sports and training, so that the resistance of the air filter rises quickly, the problem of short service life (short maintenance period) of the air filter is exposed, and the power output of an engine is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an air cleaner who contains prefilter can effectively solve the air cleaner and maintain the problem that the maintenance time is short, has realized the target that promotes the maintenance cycle.
The technical scheme of the utility model is that: an air cleaner including a precleaner, comprising: the device comprises a dust extraction fan, an air inlet channel, a prefilter and a secondary filter;
an air outlet of the air inlet channel is in sealed butt joint with an air inlet of the prefilter;
the dust extraction fan is communicated with the prefilter and is used for discharging dust or solid particles separated by the prefilter;
the air outlet of the prefilter is in sealed butt joint with the air inlet of the secondary filter;
and the air outlet of the secondary filter is connected with an air outlet pipe.
Preferably, a guide plate is arranged inside the air inlet channel.
Preferably, two arc-shaped guide plates are arranged inside the air inlet channel, and the two arc-shaped guide plates are arranged at intervals up and down; wherein the guide plate positioned above divides the air inlet of the air inlet channel into two parts by the bending part.
Preferably, the prefilter is a cyclone tube prefilter, comprising: a housing and a pre-filtering unit mounted inside the housing; more than two rows of pre-filtering units are uniformly arranged in the shell at intervals, and each pre-filtering unit consists of two rows of cyclone tubes which are closely staggered.
Preferably, the secondary filter includes a cylindrical housing and a cylindrical filter element disposed inside the housing.
Preferably, a resistance alarm is arranged on the air outlet pipe.
Preferably, the air inlet channel is detachably connected above the prefilter; the prefilter is detachably connected above the secondary filter.
Preferably, the air inlet channel is detachably connected above the prefilter through a quick buckle.
Preferably, an air inlet is machined in the upper end face of the air inlet channel.
Has the beneficial effects that:
(1) thereby this air cleaner improves prefilter efficiency through setting up the prefilter and taking out dirt fan and improves prefilter maintenance cycle, reduces and maintains the maintenance cost, in the long term, the use consumption rate that can greatly reduced filter core.
(2) The air inlet channel is internally provided with a guide plate, and dust-containing air can flow into the prefilter more uniformly after being guided by the guide plate.
(3) The resistance alarm is arranged to provide basis for maintenance of the air filter and prompt timely maintenance or filter element replacement.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the novel inlet structure;
FIG. 3 is a schematic structural view of the cyclone tube prefilter of the present invention;
FIG. 4 is a schematic view of a two-stage filter according to the present invention;
the device comprises a dust extraction fan 1, an air inlet 2, a prefilter 3, a secondary filter 4, a resistance alarm 5, a guide plate 6, a filter element 7, a shell 8, a quick buckle 9 and a bolt 10.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
Example 1:
the embodiment provides a compact structure air cleaner who contains prefilter, thereby improves prefilter efficiency through setting up the prefilter and promotes filter core maintenance cycle.
As shown in fig. 1, the air cleaner includes: the device comprises a dust extraction fan 1, an air inlet channel 2, a prefilter 3, a secondary filter 4 and a resistance alarm 5;
the dust extraction fan 1 is communicated with the prefilter 3 through a rubber pipe, the prefilter 3 is matched with the dust extraction fan 1 to pre-separate large-particle dust in dust-containing air, and the separated dust or solid particles are discharged through the dust extraction fan 1; the position of the dust extraction fan 1 can be flexibly arranged according to the available space. The matched design of the prefilter 3 and the dust extraction fan 1 enables the prefilter efficiency of the prefilter 3 to be optimal, and the separation efficiency to be more than 95%; the efficiency is 15% higher than that of the original blade ring type prefilter by 80%. The dust extraction fan 1 can be adjusted along with the position of an engine or an air filter, and the specific parameter requirements are as follows: 24V direct current, and the dust extraction static pressure is not less than the sum of the resistances of the front end air inlet 2 and the pre-filter 3, so that the dust extraction fan can discharge separated dust.
The air inlet channel 2 is fixed on the prefilter 3 through a quick buckle 9, so that quick assembly and disassembly are realized; the air outlet of the air inlet channel 2 is in butt joint with the air inlet of the prefilter 3, and the butt joint surface is sealed by a rubber mat. The air intake port of the air intake duct 2 sucks in the dust-containing air from the outside of the vehicle, and the air flows into the prefilter 3 after passing through the air intake duct 2.
The air inlet channel 2 and the prefilter 3 are fixed on the secondary filter 4 as a whole through bolts 10, an air outlet of the prefilter 3 is in butt joint with an air inlet of the secondary filter 4, and the butt joint surface is guaranteed to be installed and sealed through a rubber gasket. The secondary filter 4 adopts a traditional structure cylindrical structure filter element 7 and a cylindrical shell structure 8 to form a closed space, fine filtration is carried out on the pre-filtered gas by the pre-filter 3, and the clean gas after fine filtration enters the engine through an air outlet pipe. The filter element 7 of the secondary filter 4 adopts an end face sealing structure, and is convenient to install.
The resistance alarm 5 is installed in air cleaner outlet duct position, and the resistance alarm 5 utilizes the conversion of pressure sensor and signal of telecommunication to indicate air cleaner's resistance size, and the suggestion is changed or is maintained filter core 7, provides the basis for air cleaner's maintenance.
Compared with the common air filter of most light special vehicles or trucks, the air filter adopting the structure improves the maintenance period by 2-3 times, reduces the maintenance cost by more than 50 percent, and improves the maneuvering performance of the vehicle by more than 20 percent.
Example 2:
on the basis of the above embodiment 1, in order to make the flow field inside the air inlet 2 uniform, the guide plate 6 is arranged inside the air inlet 2.
As shown in fig. 2, the air inlet 2 is of a box-type structure, a round hole is formed in the upper end face, and a round short pipe is welded to the round hole to serve as an air inlet channel; the lower extreme of 2 lower extremes of intake duct is opened, and the shape is unanimous with pre-filter 3 up end face shape, and the lower extreme is inside to be equipped with limit structure for carry on spacingly when cooperating with pre-filter 3.
Two arc-shaped guide plates 6 are arranged in the air inlet channel, the two arc-shaped guide plates 6 are arranged at intervals up and down, the guide plate positioned above is an upper guide plate, and the guide plate positioned below is a lower guide plate; one end of the upper guide plate close to the air inlet channel is bent, and the bent part divides the air inlet channel into two parts so as to shunt the air in the air inlet channel; the dusty gas entering the air inlet channel 2 can flow into the prefilter more uniformly after being guided by the guide plate 6.
In the embodiment, the air inlet passage 2 is arranged above the prefilter 3, and the upper end surface of the air inlet passage 2 is provided with an air inlet channel to form a relatively independent air inlet channel, so that the performance of the product is prevented from being reduced due to the fact that oil gas generated by peripheral equipment of the engine enters an air filter assembly.
Example 3:
in addition to the above embodiment 1 or embodiment 2, the prefilter 3 is specifically defined as follows.
The prefilter 3 adopts spiral-flow tube prefilter, adopts straight-through spiral-flow tube cooperation dust extraction fan 1 to preseparate the large granule dust in the dirty air, can improve prefilter 3's prefilter efficiency.
As shown in fig. 3, the prefilter 3 includes a housing and a prefilter unit mounted inside the housing; the shell is a flat box-shaped structure; a plurality of rows of pre-filtering units are uniformly arranged in the shell at intervals, and each pre-filtering unit consists of two rows of cyclone tubes which are closely staggered; the cyclone tube is vertically arranged, the gas inlet of the cyclone tube is flush with the upper end face of the shell, and the gas outlet is flush with the lower end face of the shell.
One side of the shell is provided with a round opening, and a round pipe is welded at the opening and is used for connecting the dust extraction fan 1;
in addition, a plurality of L-shaped connecting sheets with open holes are welded on the shell and are used for being matched with the bolts 10 to realize the connection with the secondary filter 4.
From this connect intake duct 2 and second grade filter 4 through prefilter 3, the cyclone tube in prefilter 3 separates the dust and the solid particle thing in with dirty air through centrifugal force and discharges through dust extraction fan 1.
Example 4:
in addition to embodiment 1 or embodiment 2 described above, the secondary filter 4 is specifically defined as follows.
As shown in fig. 4, the secondary filter 4 is composed of a cylindrical casing 8 and a cylindrical filter element 7 disposed inside the casing 8; the filter element 7 and the shell body 8 adopt a central rod tensioning fixing and end face sealing structure, and are convenient to install and maintain.
The top of the shell 8 is provided with an air inlet channel which is used for being butted with the prefilter 3, and the air inlet channel is provided with connecting points which are in one-to-one correspondence with the L-shaped connecting sheets on the shell of the prefilter 3; an air outlet is arranged at one axial end of the shell 8 and is used for connecting a back air outlet pipe.
In summary, the above is merely a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An air cleaner including a precleaner, comprising: the device comprises a dust extraction fan (1), an air inlet channel (2), a prefilter (3) and a secondary filter (4);
the air outlet of the air inlet channel (2) is in sealed butt joint with the air inlet of the prefilter (3);
the dust extraction fan (1) is communicated with the prefilter (3) and is used for discharging dust or solid particles separated by the prefilter (3);
the air outlet of the prefilter (3) is in sealed butt joint with the air inlet of the secondary filter (4);
and the air outlet of the secondary filter (4) is connected with an air outlet pipe.
2. The air cleaner with prefilter of claim 1 wherein said air inlet duct (2) is internally provided with a baffle (6).
3. The air cleaner with the prefilter as claimed in claim 2, wherein two curved baffles (6) are arranged inside the air inlet duct (2), and the two curved baffles (6) are arranged at an interval from top to bottom; wherein the guide plate positioned above divides the air inlet of the air inlet channel (2) into two parts through the bending part.
4. The air cleaner with a prefilter according to claim 1 wherein said prefilter (3) is a swirl tube prefilter comprising: a housing and a pre-filtering unit mounted inside the housing; more than two rows of pre-filtering units are uniformly arranged in the shell at intervals, and each pre-filtering unit consists of two rows of cyclone tubes which are closely staggered.
5. The air cleaner containing the prefilter of claim 1, wherein said secondary filter (4) comprises a cylindrical casing (8) and a cylindrical filter element (7) disposed inside said casing (8).
6. An air cleaner comprising a prefilter as claimed in any one of claims 1 to 5, wherein a resistance alarm (5) is provided on said outlet duct.
7. The air cleaner containing the prefilter of any one of claims 1 to 5, wherein said air intake duct (2) is removably connected above said prefilter (3); the prefilter (3) is detachably connected above the secondary filter (4).
8. The air cleaner containing the prefilter of claim 7, wherein said air inlet channel (2) is removably attached above said prefilter (3) by means of a quick snap (9).
9. The air cleaner containing the prefilter of claim 7, wherein an air inlet is machined into the upper end face of said air intake duct (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220448556.7U CN217481427U (en) | 2022-03-03 | 2022-03-03 | Air filter who contains prefilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220448556.7U CN217481427U (en) | 2022-03-03 | 2022-03-03 | Air filter who contains prefilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217481427U true CN217481427U (en) | 2022-09-23 |
Family
ID=83307648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220448556.7U Active CN217481427U (en) | 2022-03-03 | 2022-03-03 | Air filter who contains prefilter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217481427U (en) |
-
2022
- 2022-03-03 CN CN202220448556.7U patent/CN217481427U/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: 20240306 Address after: No. 4, Huaishuling, Fengtai District, Beijing 100072 Patentee after: Beijing North Vehicle New Technology Incubator Co.,Ltd. Country or region after: China Address before: 100072 Huaishuling No.4 hospital, Fengtai District, Beijing Patentee before: CHINA NORTH VEHICLE Research Institute Country or region before: China |
|
| TR01 | Transfer of patent right |