CN114259185A - Air inlet channel structure with primary filtering function, cyclone separator and dust collector - Google Patents
Air inlet channel structure with primary filtering function, cyclone separator and dust collector Download PDFInfo
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- CN114259185A CN114259185A CN202210095729.6A CN202210095729A CN114259185A CN 114259185 A CN114259185 A CN 114259185A CN 202210095729 A CN202210095729 A CN 202210095729A CN 114259185 A CN114259185 A CN 114259185A
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- spiral pipeline
- air inlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The invention discloses an air inlet channel structure with a primary filtering function, a cyclone separator and a dust collector, belonging to the technical field of gas-solid separation, wherein the air inlet channel structure comprises a spiral pipeline, an air inlet channel is formed on the inner wall of the spiral pipeline, an air inlet pipe communicated with the spiral pipeline is arranged at the lower end of the spiral pipeline, and the air inlet pipe is provided with an air inlet; an air outlet pipe communicated with the spiral pipeline is arranged at the upper end of the spiral pipeline and is provided with an air outlet; the side wall of the spiral pipeline far away from the spiral central shaft side is at least provided with 1 primary filter opening. The invention provides an air inlet channel structure with a primary filtering function, which is based on a cyclone separation principle and a coanda effect and has the primary filtering function, and is used for primarily filtering airflow, so that larger dust can be separated, the load of an airflow downstream separation device is reduced, and the disturbance of the large dust in the airflow to the downstream airflow is reduced.
Description
Technical Field
The invention belongs to the technical field of gas-solid separation, and particularly relates to an air inlet channel structure with a primary filtering function, a cyclone separator and a dust collector.
Background
The existing dust cup type dust collector based on the cyclone separation principle has a structure that a cyclone cone is arranged in a dust collecting barrel. The dusty gas stream enters the cyclone cone tangentially, producing a high-speed rotating gas stream. The dust falls to the bottom after the air flow is separated, and the clean air flows out from the upper part of the cone. Because the dust separation efficiency of the cyclone cone is not high, the sponge or the filter screen which is arranged in front of the motor before needs to be frequently replaced, or the dust is frequently cleaned, otherwise, the dust collected on the sponge or the filter screen can cause blockage, and the suction force of the dust collector is reduced. In order to improve the dust separation efficiency, multi-cone and multi-stage separation is generally adopted, and the structure is complex, the pressure drop loss and the noise are large, and the manufacturing cost is high.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the following technical scheme:
an air inlet channel structure with a primary filtering function comprises a spiral pipeline, wherein an air inlet channel is formed on the inner wall of the spiral pipeline, an air inlet pipe communicated with the spiral pipeline is arranged at the lower end of the spiral pipeline, and the air inlet pipe is provided with an air inlet; an air outlet pipe communicated with the upper end of the spiral pipeline is arranged at the upper end of the spiral pipeline, and the air outlet pipe is provided with an air outlet; the side wall of the spiral pipeline far away from the spiral central shaft side is at least provided with 1 primary filter opening.
Furthermore, the primary filter opening is provided with a first opening wall and a second opening wall along the airflow flowing direction, and the outer wall surface of the first opening wall is provided with an arc-shaped convex part connected with the first opening wall; the projection is located on a side away from the second opening wall.
Furthermore, the length of the primary filter opening along the airflow flowing direction is L, the radial distance between the inner side wall and the outer side wall of the spiral pipeline is a, the section length of the lug boss along the airflow flowing direction is b, the maximum height of the convex outer wall is c, and the length range of the primary filter opening is 0.4< L/a < 2; the length of the end face of the primary filter opening is b/a < 0.5.
Further, the size of the convex end face of the convex part is required to be b/a <1, and c/a < 0.6.
Further, the radius of the outer side wall of the spiral pipeline is R, the radius of the inner side wall of the spiral pipeline is R, the rotation angle of the spiral pipeline is pi-6 pi, and the axial layer height of the spiral central shaft of the spiral pipeline is 1-2.5 times of the height of the single-layer spiral pipeline; the distance between the outer side wall and the inner side wall of the spiral pipeline is required to be 1.5< R/a < 4.5.
Further, each primary filter opening corresponds to an independent dust collecting area.
A cyclone separator comprises the air inlet channel structure with the primary filtering function.
A dust collector comprises the cyclone separator.
Has the advantages that:
the invention provides an air inlet channel structure with a primary filtering function, which is based on a cyclone separation principle and a coanda effect and has the primary filtering function, and is used for primarily filtering airflow, so that larger dust can be separated, the load of an airflow downstream separation device is reduced, and the disturbance of the large dust in the airflow to the downstream airflow is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of an air inlet channel structure with a primary filtering function;
FIG. 2 is a schematic cross-sectional view of the movement of the dusty gas stream in the primary filter channel;
FIG. 3 is a sectional top view of a primary filter opening;
FIG. 4 is a top view of a cross-section of a primary filter opening without a projection;
wherein, 1, an air inlet; 2. an air inlet pipe; 3. a helical conduit; 301. an outer sidewall; 302. an inner sidewall; 4. opening the primary filter; 401. a boss portion; 402. a first opening wall; 403. a second opening wall; 5. and (7) air outlet.
Detailed Description
Example 1
Referring to fig. 1-4, an air inlet channel structure with a primary filtering function comprises a spiral pipeline 3, an air inlet channel is formed on the inner wall of the spiral pipeline 3, an air inlet pipe communicated with the lower end of the spiral pipeline 3 is arranged on the lower end of the spiral pipeline 3, and the air inlet pipe is provided with an air inlet 1; an air outlet pipe communicated with the upper end of the spiral pipeline 3 is arranged at the upper end of the spiral pipeline, and the air outlet pipe is provided with an air outlet 5; the side wall of the spiral pipeline 3 far away from the spiral central shaft side is at least provided with 1 primary filter opening 4.
In this embodiment, 1 primary filter opening 4 is provided in the side wall of the spiral duct 3 on the side away from the center axis of the spiral.
In other embodiments, a plurality of primary filter openings 4 may be provided on the side wall of the spiral duct 3 away from the spiral central axis thereof, wherein each primary filter opening 4 corresponds to a separate dust collecting area.
In the present embodiment, the primary filter opening 4 has a first opening wall 402 and a second opening wall 403 in the gas flow direction.
In the present embodiment, an arc-shaped protrusion 401 connected to the outer wall surface of the first opening wall 402 is provided; the boss 401 is located on the side away from the second opening wall 403.
In this embodiment, the length of the primary filter opening 4 along the airflow flowing direction is L, the radial distance between the inner sidewall 302 and the outer sidewall 301 of the spiral duct 3 is a, the cross-sectional length of the convex portion 401 along the airflow flowing direction is b, the maximum height of the convex outer sidewall 301 is c, and the length range of the primary filter opening 4 is 0.4< L/a < 2; the end face length of the primary filter opening 4 is b/a < 0.5.
In the present embodiment, the dimensions of the convex end face of the boss 401 are required to be b/a <1, and c/a < 0.6.
In the present embodiment, the radius of the outer sidewall 301 of the spiral pipe 3 is R, the radius of the inner sidewall 302 is R, and the rotation angle of the spiral pipe 3 is pi-6 pi, i.e. 0.5-3 cycles; the axial layer height of the spiral central shaft of the spiral pipeline 3 is 1-2.5 times of the height of the single-layer spiral pipeline; the distance between the outer side wall 301 and the inner side wall 302 of the spiral duct 3 is required to be 1.5< R/a < 4.5.
In other embodiments, referring to fig. 4, the boss 401 may not be provided.
The operating principle of the inlet air channel with the primary filtering function provided by the embodiment is as follows:
the air inlet channel with the primary filtering function provided by the embodiment is based on the cyclone separation principle and the coanda effect, when dust-containing gas enters from the air inlet 1 and reaches the air inlet channel part of the spiral pipeline 3 through the air inlet pipe 2, the air flow moves centrifugally in the spiral pipeline 3, dust-containing particles in the air flow, particularly large dust particles, are close to the outer side wall 301 of the air inlet channel under the action of centrifugal force, and the air flow close to the inner side wall 302 is relatively clean.
As shown in fig. 2, when the air flow passes through the primary filter opening 4, a part of the dust particles near the outer side wall 301 of the air intake passage fly out of the opening by centrifugal force (f 1); further, since the air flow generates a strong coanda effect under the influence of the convex portion 401 (convex end surface), the air flow entrains dust particles close to the wall surface 301 and flies out in a certain arc (f 2).
The airflow primarily purified by the primary filtering opening 4 can carry fine dust particles to continue to move forward along the channel and enter the cyclone separation cone.
Example 2
A cyclone separator comprises an air inlet channel structure with a primary filtering function provided by embodiment 1.
Example 3
A vacuum cleaner comprising the cyclonic separator of embodiment 2.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (8)
1. An air inlet channel structure with a primary filtering function is characterized by comprising a spiral pipeline, wherein an air inlet channel is formed on the inner wall of the spiral pipeline, an air inlet pipe communicated with the spiral pipeline is arranged at the lower end of the spiral pipeline, and the air inlet pipe is provided with an air inlet; an air outlet pipe communicated with the upper end of the spiral pipeline is arranged at the upper end of the spiral pipeline, and the air outlet pipe is provided with an air outlet; the side wall of the spiral pipeline far away from the spiral central shaft side is at least provided with 1 primary filter opening.
2. The air intake channel structure with the primary filtering function as claimed in claim 1, wherein the primary filtering opening has a first opening wall and a second opening wall along the airflow flowing direction, and an arc-shaped convex part connected with the first opening wall is arranged on the outer wall surface of the first opening wall; the projection is located on a side away from the second opening wall.
3. The air intake channel structure with primary filter function as claimed in claim 2, wherein the primary filter opening has a length L along the airflow flowing direction, the radial distance between the inner side wall and the outer side wall of the spiral duct is a, the cross-sectional length of the protruding portion along the airflow flowing direction is b, the maximum height of the protruding outer wall surface is c, and the length range of the primary filter opening is 0.4< L/a < 2; the length of the end face of the primary filter opening is b/a < 0.5.
4. The intake air duct structure with primary filtering function as claimed in claim 3, wherein the size of the protruding end face of the protruding portion is b/a <1, c/a < 0.6.
5. The intake air channel structure with the primary filter function as claimed in claim 4, wherein the radius of the outer side wall of the spiral pipeline is R, the radius of the inner side wall of the spiral pipeline is R, the rotation angle of the spiral pipeline is pi-6 pi, and the axial layer height of the spiral central shaft of the spiral pipeline is 1-2.5 times of the height of a single-layer spiral pipeline; the distance between the outer side wall and the inner side wall of the spiral pipeline is required to be 1.5< R/a < 4.5.
6. The intake air duct structure with the preliminary filtering function as claimed in claim 1, wherein each of the preliminary filtering openings corresponds to an independent dust collecting area.
7. A cyclone separator, characterized in that it comprises an air intake channel structure with a primary filtering function as claimed in any one of claims 1 to 6.
8. A vacuum cleaner comprising the cyclonic separator of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210095729.6A CN114259185B (en) | 2022-01-26 | 2022-01-26 | Air inlet channel structure with primary filtering function, cyclone separator and dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210095729.6A CN114259185B (en) | 2022-01-26 | 2022-01-26 | Air inlet channel structure with primary filtering function, cyclone separator and dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114259185A true CN114259185A (en) | 2022-04-01 |
| CN114259185B CN114259185B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210095729.6A Active CN114259185B (en) | 2022-01-26 | 2022-01-26 | Air inlet channel structure with primary filtering function, cyclone separator and dust collector |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1531897A (en) * | 2003-03-25 | 2004-09-29 | 乐金电子(天津)电器有限公司 | Dust collector of vacuum cleaner |
| CN1986074A (en) * | 2005-12-24 | 2007-06-27 | 姜大志 | High efficiency cyclonic dust collector |
| CN102327096A (en) * | 2011-09-29 | 2012-01-25 | 江苏美的春花电器股份有限公司 | Dust cup for dust collector and dust collector |
| CN104172988A (en) * | 2013-05-28 | 2014-12-03 | 向桂南 | Dust-gas separating device of vacuum cleaner |
| CN107898384A (en) * | 2017-11-29 | 2018-04-13 | 江苏美的清洁电器股份有限公司 | Dust and gas separator and there is its dust catcher |
| CN110448260A (en) * | 2019-08-16 | 2019-11-15 | 深圳晶华显示器材有限公司 | Dust-free workshop toilet pedal |
| US20210052122A1 (en) * | 2017-02-06 | 2021-02-25 | Aktiebolaget Electrolux | Separation system for vacuum cleaner and vacuum cleaner comprising the separation system |
| CN113509077A (en) * | 2020-05-12 | 2021-10-19 | 苏州市春菊电器有限公司 | Be applied to dirt cup subassembly of hand-held type dust catcher |
| CN113854911A (en) * | 2021-09-30 | 2021-12-31 | 追觅创新科技(苏州)有限公司 | Box and have its cleaning device |
-
2022
- 2022-01-26 CN CN202210095729.6A patent/CN114259185B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1531897A (en) * | 2003-03-25 | 2004-09-29 | 乐金电子(天津)电器有限公司 | Dust collector of vacuum cleaner |
| CN1986074A (en) * | 2005-12-24 | 2007-06-27 | 姜大志 | High efficiency cyclonic dust collector |
| CN102327096A (en) * | 2011-09-29 | 2012-01-25 | 江苏美的春花电器股份有限公司 | Dust cup for dust collector and dust collector |
| CN104172988A (en) * | 2013-05-28 | 2014-12-03 | 向桂南 | Dust-gas separating device of vacuum cleaner |
| US20210052122A1 (en) * | 2017-02-06 | 2021-02-25 | Aktiebolaget Electrolux | Separation system for vacuum cleaner and vacuum cleaner comprising the separation system |
| CN107898384A (en) * | 2017-11-29 | 2018-04-13 | 江苏美的清洁电器股份有限公司 | Dust and gas separator and there is its dust catcher |
| CN110448260A (en) * | 2019-08-16 | 2019-11-15 | 深圳晶华显示器材有限公司 | Dust-free workshop toilet pedal |
| CN113509077A (en) * | 2020-05-12 | 2021-10-19 | 苏州市春菊电器有限公司 | Be applied to dirt cup subassembly of hand-held type dust catcher |
| CN113854911A (en) * | 2021-09-30 | 2021-12-31 | 追觅创新科技(苏州)有限公司 | Box and have its cleaning device |
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| Publication number | Publication date |
|---|---|
| CN114259185B (en) | 2023-06-16 |
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