CN215292723U - Straight-through cyclone tube type prefilter - Google Patents
Straight-through cyclone tube type prefilter Download PDFInfo
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- CN215292723U CN215292723U CN202121564791.2U CN202121564791U CN215292723U CN 215292723 U CN215292723 U CN 215292723U CN 202121564791 U CN202121564791 U CN 202121564791U CN 215292723 U CN215292723 U CN 215292723U
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Abstract
The utility model discloses a straight-through cyclone tube type prefilter, which comprises a housin and a filter screen, casing open-top is provided with the cylindric filter screen, the top of filter screen covers there is the rainhat, casing open-top covers there is the baffle, the baffle is through many straight-through cyclone tube and the interior intercommunication of casing evenly arranged respectively, the bottom is provided with the outlet duct of lower extreme and external intercommunication in the casing, the upper end of outlet duct is airtight, be provided with a plurality of toper honeycomb ducts that are located straight-through cyclone tube respectively, and the upper end of toper honeycomb duct is narrower than the lower extreme, toper honeycomb duct lower extreme and outlet duct intercommunication, the inside wall of straight-through cyclone tube is provided with helical blade, the outlet duct both sides are provided with the deposition chamber respectively, the deposition chamber lower extreme covers has the dust bag that can twist off. The utility model provides high filtration efficiency to reduced original resistance, in actual loading is experimental, realized high-efficient filtration and automatic maintenance, obtained fine experimental effect.
Description
Technical Field
The utility model relates to an engineering machine tool technical field, concretely relates to straight-through spiral-flow tube type prefilter.
Background
The working environment of the engineering machinery is complex, the engineering machinery is often in the environment with much dust and impurities during working, the prefilter is an important filter device for air intake during the working of the excavator, the efficiency of the prefilter is high and low, the filter element maintenance period of the air filter is directly related, and the prefilter has great influence on the working efficiency and the use cost of customers.
The height and the maintenance mode of prefilter coarse filtration efficiency are two important indexes of prefilter performance, and the prefilter coarse filtration efficiency is low, so that the service life of a filter element is short, and the maintenance period of an air filter is short. The prefilter is not easy to maintain, and the working efficiency of the prefilter is reduced. At present, the following prefilters and respective problems mainly exist in the market:
(1) dust cup type prefilter: the coarse filtration efficiency is low, the quantity of the stored dust in the dust cup is small, and the maintenance is difficult.
(2) Ejecting dust exhaust formula prefilter: mostly draw the dust exhaust in the silencer in the market, can lead to silencer exhaust back pressure to increase, exhaust noise risees, and engine power reduces. Meanwhile, air backflow is easy to occur due to dust ejection and discharge, so that coarse filtration efficiency is reduced, and the prefilter is damaged.
(3) Rotor type cyclone prefilter: although the coarse filtration efficiency is high and automatic dust exhaust is realized, the dust exhaust port is small and easy to be blocked by impurities, and the dust exhaust function cannot be realized, and the pre-filter has no filtration function.
(4) The desert cyclone tube prefilter: the efficiency of the prefilter is higher, but because the air flow is bent by the N-shaped backflow, the original air inlet resistance is higher, the automatic dust discharge cannot be realized, and the oil consumption can be increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a direct cyclone tube prefilter.
In order to achieve the above purpose, the technical scheme of the utility model is that: a straight-through cyclone tube type prefilter comprises a shell and a filter screen, wherein a cylindrical filter screen is arranged at an opening at the top of the shell, when air mixed with dust passes through the filter screen, larger impurities such as stone particles, weeds and the like are firstly blocked and cannot enter the shell, so that preliminary filtration is realized, and a rain shielding cap covers the top of the filter screen, so that a rain shielding function is realized;
the top opening of the shell is covered with a partition board, the partition board is communicated with the interior of the shell through a plurality of straight-through cyclone tubes which are uniformly distributed, an air outlet tube with a lower end communicated with the outside is arranged at the bottom of the interior of the shell, the upper end of the air outlet tube is closed, a plurality of conical flow guide tubes located in the straight-through cyclone tubes are arranged respectively, the upper ends of the conical flow guide tubes are narrower than the lower ends of the conical flow guide tubes, the lower ends of the conical flow guide tubes are communicated with the air outlet tube, spiral blades are arranged on the inner side wall of the straight-through cyclone tubes, dust deposition cavities are arranged on two sides of the air outlet tube respectively, and dust discharge bags cover the lower ends of the dust deposition cavities.
Furthermore, a vertical connecting column is arranged at the center of the partition plate, and the upper end of the connecting column is fixedly connected with the center of the rain-shading cap.
Furthermore, the upper end of the air outlet pipe is in an inverted cone shape.
Further, the shell is fixed together by the upper and lower parts through butt joint buckles.
Furthermore, the connecting column is a bolt column, the upper end of the connecting column is positioned on the upper surface of the rain hat, and a butterfly nut is screwed on the connecting column.
The utility model discloses following beneficial effect has: after prefilter's air got into the casing, downward through leading cyclone tube carry out the whirl, dust in the air is under the effect of centrifugal force, lower extreme opening along leading cyclone tube gets into the collection ash intracavity, get into in the dust exhaust bag, realize automatic dust exhaust in dust exhaust bag department, it is inside that the air filter gets into from the gas outlet to be directly vertically run through the toper honeycomb duct by filterable air, through above setting, and the filtration efficiency is improved, and reduce original resistance, in actual loading test, high efficiency filtration and automatic maintenance have been realized, fine experimental effect has been obtained.
Drawings
The present invention will now be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a schematic top view of the present invention;
fig. 4 is the three-dimensional structure schematic diagram of the straight-through cyclone tube arrangement of the present invention.
Detailed Description
As shown in figures 1-4, a straight-through cyclone tube type prefilter comprises a shell 1 and a filter screen 2, wherein a cylindrical filter screen 2 is arranged at the top opening of the shell 1, a rain-shielding cap 3 covers the top of the filter screen 2, the rain-shielding cap 3 completely covers the upper end of the filter screen 2, the diameter of the rain-shielding cap 3 is far larger than that of the filter screen 2, a partition plate 4 covers the top opening of the shell 1, the partition plate 4 is communicated with the shell 1 through a plurality of straight-through cyclone tubes 5 which are uniformly distributed, an air outlet tube 6 with the lower end communicated with the outside is arranged at the bottom in the shell 1, the upper end of the air outlet tube 6 is sealed, a plurality of conical flow guide tubes 7 positioned in the straight-through cyclone tubes 5 are respectively arranged, the upper ends of the conical flow guide tubes 7 are narrower than the lower ends, the lower ends of the conical flow guide tubes 7 are communicated with the air outlet tube 6, spiral blades 8 are arranged on the inner side wall of the straight-through cyclone tubes 5, the spiral blades are two, and separated cylinders are arranged at the centers, the air outlet of the straight-through cyclone tube 5 is located on one side of the lower end, as shown in fig. 4, the straight-through cyclone tube 5 is also in an inverted cone shape, the opening diameter of the lower end is larger than that of the upper end, the spiral airflow generated by the spiral blades 8 moves outwards in a spiral centrifugal mode, dust is discharged along and clings to the bottom of the straight-through cyclone tube 5 gradually widened, sufficient clean air passes through the middle part of the straight-through cyclone tube, dust collecting cavities 9 are respectively arranged on two sides of the air outlet tube 6, dust discharge bags 10 cover the lower ends of the dust collecting cavities 9, and are provided with slit-shaped dust discharge ports, so that the dust discharge bags 10 can automatically discharge dust along with the vibration of vehicles, and the dust discharge bags 10 can be detached for replacement after aging or damage.
For the convenience of installation, the center of the partition plate 4 is provided with a vertical connecting column 11, the upper end of the connecting column 11 is fixedly connected with the center of the rain hat 3, the connecting column 11 is a bolt column, the upper end of the connecting column 11 is positioned on the upper surface of the rain hat 3, a butterfly nut 13 is screwed on the connecting column, the shell 1 is fixed together by an upper part and a lower part through a butt joint buckle 12, the conical guide pipe 7 and the air outlet pipe 6 can also be arranged in a split mode, the installation is convenient, and if each conical guide pipe 7 is arranged on a cover at the upper end of the air outlet pipe 6.
For convenience of air outlet, the upper end of the air outlet pipe 6 is in an inverted cone shape.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (6)
1. A straight-through cyclone tube type prefilter is characterized in that: comprises a shell (1) and a filter screen (2), the top opening of the shell (1) is provided with a cylindrical filter screen (2), the top of the filter screen (2) is covered with a rain-shielding cap (3), the top opening of the shell (1) is covered with a partition plate (4), the partition plate (4) is respectively communicated with the interior of the shell (1) through a plurality of uniformly distributed straight-through cyclone tubes (5), the bottom of the interior of the shell (1) is provided with an air outlet tube (6) with the lower end communicated with the outside, the upper end of the air outlet tube (6) is closed, and a plurality of conical flow guide tubes (7) positioned in the straight-through cyclone tubes (5) are respectively arranged, the upper end of the conical flow guide pipe (7) is narrower than the lower end, the lower end of the conical flow guide pipe (7) is communicated with the air outlet pipe (6), the inner side wall of the straight-through cyclone pipe (5) is provided with a helical blade (8), two sides of the air outlet pipe (6) are respectively provided with an ash deposition cavity (9), and the lower end of the ash deposition cavity (9) is covered with a dust discharge bag (10).
2. The in-line swirl tube prefilter of claim 1 wherein: a vertical connecting column (11) is arranged at the center of the partition plate (4), and the upper end of the connecting column (11) is fixedly connected with the center of the rain hat (3).
3. The in-line swirl tube prefilter of claim 1 wherein: the upper end of the air outlet pipe (6) is in an inverted cone shape.
4. The in-line swirl tube prefilter of claim 1 wherein: the shell (1) is fixed together by an upper part and a lower part through a butt joint buckle (12).
5. A straight through swirl tube prefilter as claimed in claim 2 wherein: the connecting column (11) is a bolt column, the upper end of the connecting column (11) is positioned on the upper surface of the rain hat (3), and a butterfly nut (13) is screwed on the connecting column.
6. The in-line swirl tube prefilter of claim 1 wherein: the straight-through cyclone tube (5) is in an inverted cone shape, and the diameter of an opening at the lower end is larger than that at the upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121564791.2U CN215292723U (en) | 2021-07-09 | 2021-07-09 | Straight-through cyclone tube type prefilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121564791.2U CN215292723U (en) | 2021-07-09 | 2021-07-09 | Straight-through cyclone tube type prefilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215292723U true CN215292723U (en) | 2021-12-24 |
Family
ID=79521642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121564791.2U Active CN215292723U (en) | 2021-07-09 | 2021-07-09 | Straight-through cyclone tube type prefilter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215292723U (en) |
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2021
- 2021-07-09 CN CN202121564791.2U patent/CN215292723U/en active Active
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