CN117861877A - Be applied to embedded second grade whirlwind separation structure in narrow and small space and dust collecting equipment - Google Patents
Be applied to embedded second grade whirlwind separation structure in narrow and small space and dust collecting equipment Download PDFInfo
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- CN117861877A CN117861877A CN202410228122.XA CN202410228122A CN117861877A CN 117861877 A CN117861877 A CN 117861877A CN 202410228122 A CN202410228122 A CN 202410228122A CN 117861877 A CN117861877 A CN 117861877A
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- 238000000926 separation method Methods 0.000 title claims abstract description 92
- 239000000428 dust Substances 0.000 title claims abstract description 45
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 5
- 238000010408 sweeping Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The invention discloses an embedded secondary cyclone separation structure and dust removal equipment applied to a narrow space, and belongs to the technical field of purification and dust removal, wherein the structure comprises a primary separation channel, a secondary separation channel and a connection channel for connecting the primary separation channel and the secondary separation channel; the primary separation channel comprises a first straight pipe channel and a first circular arc-shaped channel which are communicated, one end of the first straight pipe channel is an air flow inlet, and a first strip-shaped opening is formed in the first circular arc-shaped channel; the secondary separation channel comprises a second straight pipe channel and a second circular arc-shaped channel which are communicated, one end of the second straight pipe channel is an airflow outlet, and a second strip-shaped opening is formed in the second circular arc-shaped channel; the first circular arc-shaped channel is sleeved outside the second circular arc-shaped channel. The invention is an embedded structure, realizes the efficient utilization of the internal space of the primary separation structure, has stronger secondary separation centrifugal force than the primary separation centrifugal force, and has higher secondary separation efficiency than the primary separation centrifugal force without increasing the size of the primary separation structure.
Description
Technical Field
The invention belongs to the technical field of purification and dust removal, and particularly relates to an embedded secondary cyclone separation structure applied to a narrow space and dust removal equipment.
Background
Some industrial and household dust removing equipment has strict requirements on the size, and the floor sweeping robot has limited occupied area and thickness of only a few centimeters; when the cyclone separation principle is utilized to remove dust, the core structure of the cyclone dust remover still rotates around the center for assisting the airflow channel, so that centrifugal force is generated, and dust and ash are separated.
The sweeping robot generally adopts a primary separation structure, so that the dust removal efficiency is not high enough, and a sponge or a filter screen arranged in front of a motor needs to be frequently replaced, or frequent cleaning is carried out, otherwise, dust collected on the sponge or the filter screen can cause blockage, so that the suction force of the dust collector is reduced; the parallel arrangement adopted by the two-stage cyclone separation device commonly used in other fields occupies a relatively large space, and is not suitable for the strict space requirement required by the sweeping robot; the secondary separation structure using the cyclone separation principle is limited.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme:
the embedded secondary cyclone separation structure applied to the narrow space comprises a primary separation channel, a secondary separation channel and a connecting channel for connecting the primary separation channel and the secondary separation channel;
the primary separation channel comprises a first straight pipe channel and a first circular arc channel which are communicated, one end of the first straight pipe channel, which is far away from the first circular arc channel, is an air flow inlet, a first strip-shaped opening is formed in the first circular arc channel, and one end of the first circular arc channel, which is far away from the first straight pipe channel, is communicated with the first end of the connecting channel;
the second-stage separation channel comprises a second straight pipe channel and a second circular arc-shaped channel which are communicated, one end of the second straight pipe channel, which is far away from the second circular arc-shaped channel, is an airflow outlet, a second strip-shaped opening is formed in the second circular arc-shaped channel, and one end of the second circular arc-shaped channel, which is far away from the second straight pipe channel, is communicated with the second end of the connecting channel;
the first circular arc-shaped channel is sleeved on the outer side of the second circular arc-shaped channel.
Further, a first dust collecting chamber is arranged on the outer side of the first circular arc-shaped channel, and the first dust collecting chamber is communicated with the first circular arc-shaped channel through the first strip-shaped opening; a second dust collecting chamber is arranged on the outer side of the second circular arc-shaped channel and is communicated with the second circular arc-shaped channel through the second strip-shaped opening; the second dust collection chamber is located between the first circular arc-shaped channel and the second circular arc-shaped channel.
Further, the first strip-shaped opening and the second strip-shaped opening are respectively positioned at the upper half parts of the first circular arc-shaped channel and the second circular arc-shaped channel.
Further, the longitudinal cross-sectional areas of the primary separation channel, the secondary separation channel and the junction channel are equal.
Further, the connecting channel comprises a deformed channel section, a third circular arc-shaped channel and a connecting deformed channel section which are sequentially communicated, wherein the first end of the deformed channel section is communicated with one end, far away from the first straight pipe channel, of the first circular arc-shaped channel, and the second end of the deformed channel section is communicated with the third circular arc-shaped channel; the engagement deformation channel section is communicated with one end, far away from the second straight pipe channel, of the second circular arc-shaped channel.
Further, the longitudinal cross-sectional areas of the deformed channel section, the third circular arc-shaped channel and the joined deformed channel section are equal; the length of the longitudinal section of the deformation channel section is gradually decreased from the second end to the first end; the width of the longitudinal section of the deformation channel section is gradually increased from the second end to the first end; the length and width dimensions of the longitudinal section of the linking deformation channel section are unchanged, and the position of the linking deformation channel section is gradually increased from the connecting end of the third circular arc-shaped channel to the connecting end of the second circular arc-shaped channel.
Further, the length of the longitudinal section of the first end of the deformation channel section is 1/2 of the length of the longitudinal section of the second end of the deformation channel section; the width of the longitudinal section of the second end of the deformation channel section is 1/2 of the width of the longitudinal section of the first end of the deformation channel section.
Further, the width of the longitudinal section of the third circular arc-shaped channel is 1/2 of the width of the longitudinal section of the primary separation channel, and the lower bottom surface of the third circular arc-shaped channel, the first straight pipe channel and the lower bottom surface of the first circular arc-shaped channel are positioned on the same plane;
the lower bottom surface of the second straight pipe channel is placed on the upper surface of the third circular arc channel, and the upper surfaces of the second straight pipe channel and the second circular arc channel are positioned on the same plane with the upper surfaces of the first straight pipe channel and the first circular arc channel.
A dust removal apparatus comprising any one of the above-described secondary cyclonic separating apparatus for use in a confined space.
The beneficial effects are that:
the embedded type secondary cyclone separation structure applied to the narrow space is an embedded type structure, so that the efficient utilization of the internal space of the primary separation structure is realized, the secondary separation centrifugal force is stronger than that of the primary separation structure, the secondary separation structure air flow can realize secondary separation in a very limited space under the condition that the primary separation structure size is not increased, the air flow is stable, and the secondary separation efficiency is higher than that of the primary separation structure air flow.
Drawings
FIG. 1 is a schematic view of an in-line secondary cyclone separation structure for a small space provided by the invention;
FIG. 2 is a schematic view of section A-A of FIG. 1;
FIG. 3 is a schematic view of section B-B of FIG. 1;
FIG. 4 is a schematic view of a splice channel;
FIG. 5 is a schematic view of a section of a junction channel portion;
FIG. 6 is a front view of an in-line secondary cyclonic separating apparatus for small spaces provided by the present invention;
FIG. 7 illustrates another view of an in-line secondary cyclonic separating apparatus for small spaces in accordance with the present invention;
wherein, 1, a first-stage separation channel; 11. a first straight tube channel; 111. an air flow inlet; 12. a first circular arc-shaped channel; 121. the outer wall of the first circular arc-shaped channel; 122. the inner wall of the first circular arc-shaped channel; 123. a first bar-shaped opening; 2. a secondary separation channel; 21. a second circular arc-shaped channel; 211. the outer wall of the second circular arc-shaped channel; 212. the inner wall of the second circular arc-shaped channel; 213. a second bar-shaped opening; 22. a second straight tube passage; 221. an air flow outlet; 3. a linking channel; 31. a deformed channel segment; 32. a third circular arc-shaped channel; 33. joining the deformed channel segments; 4. a second dust collection chamber; 5. a first dust collection chamber.
Detailed Description
Example 1
Referring to fig. 1 to 6, an embedded secondary cyclone separation structure applied to a narrow space comprises a primary separation channel 1, a secondary separation channel 2 and a connecting channel 3 connecting the primary separation channel 1 and the secondary separation channel 2;
the primary separation channel 1 comprises a first straight pipe channel 11 and a first circular arc channel 12 which are communicated, one end of the first straight pipe channel 11 far away from the first circular arc channel 12 is an air flow inlet 111, a first strip-shaped opening 123 is arranged on the outer side wall of the first circular arc channel 12, and one end of the first circular arc channel 12 far away from the first straight pipe channel 11 is communicated with the first end of the connecting channel 3;
the secondary separation channel 2 comprises a second straight pipe channel 22 and a second circular arc channel 21 which are communicated, one end of the second straight pipe channel 22, which is far away from the second circular arc channel 21, is an air flow outlet 221, a second strip-shaped opening 213 is arranged on the outer side wall of the second circular arc channel 21, and one end of the second circular arc channel 21, which is far away from the second straight pipe channel 22, is communicated with the second end of the connecting channel 3;
wherein the first circular arc-shaped channel 12 is sleeved outside the second circular arc-shaped channel 21.
In the present embodiment, the first dust collection chamber 5 is provided outside the first circular arc-shaped channel 12, and the first dust collection chamber 5 communicates with the first circular arc-shaped channel 12 through the first bar-shaped opening 123; the second dust collecting chamber 4 is arranged outside the second circular arc-shaped channel 21, and the second dust collecting chamber 4 is communicated with the second circular arc-shaped channel 21 through a second strip-shaped opening 213; the second dust collection chamber 4 is located between the first circular arc shaped passage 12 and the second circular arc shaped passage 21.
In the present embodiment, the first and second bar-shaped openings 123, 213 are located at the upper half portions of the first and second circular arc-shaped channels 12, 21, respectively.
The first circular arc-shaped channel 12 comprises a first circular arc-shaped channel outer wall 121 and a first circular arc-shaped channel inner wall 122, the first circular arc-shaped channel outer wall 121 is sleeved on the outer side of the first circular arc-shaped channel inner wall 122, and a first strip-shaped opening 123 is formed in the first circular arc-shaped channel outer wall 121;
the second circular arc-shaped channel 21 comprises a second circular arc-shaped channel outer wall 211 and a second circular arc-shaped channel inner wall 212, the second circular arc-shaped channel outer wall 211 is sleeved on the outer side of the second circular arc-shaped channel inner wall 212, and the second strip-shaped opening 213 is arranged on the second circular arc-shaped channel outer wall 211.
Specifically, the dust-containing air flow enters from the air flow inlet 111, enters the first circular arc-shaped channel 12 through the first straight pipe channel 11 to generate centrifugal force, dust gradually approaches to the outer side of the first circular arc-shaped channel 12 in the radial direction under the action of the centrifugal force, and when the dust-containing air flow passes through the first strip-shaped opening 123 in the upper half part of the outer side of the first circular arc-shaped channel 12, the dust with large mass and particle size flies into the first dust collecting chamber 5 beyond the edge of the first strip-shaped opening 123; after the air flow is purified once, the air flow carrying the fine dust particles continuously flows through the connecting channel 3 to enter the second circular arc-shaped channel 21, stronger centrifugal force is formed in the second circular arc-shaped channel 21, the fine dust particles gradually approach the outer side of the second circular arc-shaped channel 21 in the radial direction, and when the air flow passes through the second strip-shaped opening 213, the fine dust particles fly into the second dust collecting chamber 4 beyond the edge of the second strip-shaped opening 213 under the action of the stronger centrifugal force.
In this embodiment, the ash outlet may be provided at the bottom of the first dust collecting chamber 5 and the second dust collecting chamber 4 with devices, and various forms such as a sliding cover type opening cover may be used for pouring ash.
Example 2
In order to obtain higher dust removal efficiency, this embodiment is further configured on the basis of embodiment 1.
The longitudinal cross-sectional area of the primary separation channel 1 may be 1/3 to 4/3 times the longitudinal cross-sectional area of the primary separation channel 1 (the first straight pipe channel 11 and the first circular arc channel 12) depending on the actual use.
In this embodiment, it is preferable that the longitudinal sectional areas of the primary separation channel 1, the secondary separation channel 2 and the junction channel 3 are equal.
In this embodiment, the linking channel 3 includes a deformed channel segment 31, a third circular arc channel 32 and a linking deformed channel segment 33 that are sequentially communicated, a first end of the deformed channel segment 31 is communicated with one end of the first circular arc channel 12 away from the first straight tube channel 11, and a second end of the deformed channel segment 31 is communicated with the third circular arc channel 32; the engagement deformation channel section 33 communicates with one end of the second circular arc-shaped channel 21 remote from the second straight tube channel 22.
The longitudinal cross-sectional areas of the joining channel 3 sections, that is, the longitudinal cross-sectional areas of the deformed channel section 31, the third circular arc-shaped channel 32, and the joining deformed channel section 33 may be unequal or equal, depending on the actual use situation.
In the present embodiment, the longitudinal sections of the deformation channel section 31, the third circular arc-shaped channel 32, and the joining deformation channel section 33 are preferably equal in area.
Wherein the length of the longitudinal section of the deformation channel section 31 is gradually decreased from the second end to the first end; the width of the longitudinal section of the deformation channel section 31 is gradually increased from the second end to the first end; the longitudinal section length and width dimensions of the engagement deformation channel section 33 are unchanged, and the position of the engagement deformation channel section 33 gradually increases from the connection end of the third circular arc channel 32 to the connection end of the second circular arc channel 21.
In the present embodiment, the length of the longitudinal section of the first end of the deformation channel section 31 is 1/2 of the length of the longitudinal section of the second end of the deformation channel section 31; the width of the longitudinal section of the second end of the deformation channel section 31 is 1/2 of the width of the longitudinal section of the first end of the deformation channel section 31.
Specifically, the deformed channel section 31 is connected to the first circular arc-shaped channel 12 of the primary separation channel 1, the longitudinal section length of the deformed channel section 31 is gradually reduced to 1/2 of the original length, and the width of the longitudinal section is gradually increased; the third circular arc-shaped channel 32 is a horizontal circular arc-shaped channel section, the connecting deformation channel section 33 is connected with the secondary separation structure, the length and the width are kept unchanged, and the positions are gradually increased; the sectional areas of the deformation channel section 31, the third circular arc-shaped channel 32 and the three sections of the connection deformation channel section 33 of the connection channel 3 are kept unchanged, so that the speed of the air flow is unchanged in the whole flowing process, the stability of the air flow is facilitated, and the pressure drop loss is reduced;
since the longitudinal sectional areas of the primary separation channel 1, the secondary separation channel 2 and the connecting channel 3 remain unchanged, the flow velocity of the secondary separation channel 2 is the same as that of the primary separation channel 1, and the radius of the second circular arc-shaped channel 21 of the secondary separation channel 2 is smaller than that of the first circular arc-shaped channel 12 of the primary separation channel 1, the secondary separation channel 2 can obtain larger centrifugal force, so that the secondary separation channel 2 can separate finer particles, and extremely high dust removal efficiency is obtained.
Meanwhile, the second circular arc-shaped channel 21 of the second-stage separation channel 2 is positioned in the first-stage separation channel 1, and the second dust collecting chamber 4 is completely arranged in the space between the inner wall of the first circular arc-shaped channel 12 and the outer wall of the second circular arc-shaped channel 21, so that the inner space of the first-stage separation channel 1 is efficiently utilized, the second-stage separation can be realized in a very limited space, the air flow is stable, and the separation efficiency of the second stage is higher than that of the first stage.
Example 3
In order to meet the stringent requirements of products such as a sweeping robot on the product size, this embodiment is further set on the basis of embodiment 2.
In the present embodiment, the width of the longitudinal section of the third circular arc-shaped channel 32 is 1/2 of the width of the longitudinal section of the primary separation channel 1, and the lower bottom surface of the third circular arc-shaped channel 32 is located on the same plane as the lower bottom surfaces of the first straight tube channel 11 and the first circular arc-shaped channel 12;
the lower bottom surface of the second straight pipe passage 22 is placed on the upper surface of the third circular arc passage 32, and the upper surfaces of the second straight pipe passage 22 and the second circular arc passage 21 are on the same plane with the upper surfaces of the first straight pipe passage 11 and the first circular arc passage 12.
The longitudinal section length of the deformation channel section 31 is gradually reduced to between 1/4 and 3/4 of the original length according to actual use conditions, and preferably the longitudinal section length of the deformation channel section 31 is gradually reduced to 1/2 of the original length.
Specifically, since the longitudinal section length of the deformed channel section 31 is gradually reduced to 1/2 of the original length, the longitudinal section width of the third circular arc channel is 1/2 of the longitudinal section width of the primary separation channel 1, the longitudinal section width of the third circular arc channel 32 is 1/2 of the longitudinal section width of the primary separation channel 1, and the lower bottom surface of the third circular arc channel 32 is located on the same plane as the lower bottom surfaces of the first straight tube channel 11 and the first circular arc channel 12; the length and width of the longitudinal section of the joining deformation channel section 33 joined to the secondary separation channel 2 are kept constant, and therefore the width of the longitudinal section of the secondary separation channel 2 is 1/2 of the width of the longitudinal section of the primary separation channel 1.
When the second straight pipe passage 22 flows out as a horizontal straight pipe, the lower bottom surface of the second straight pipe passage 22 is placed on the upper surface of the horizontally arranged second circular arc-shaped passage 21, and the upper surfaces of the second straight pipe passage 22 and the second circular arc-shaped passage 21 can be maintained to be in the same plane as the upper surfaces of the first straight pipe passage 11 and the first circular arc-shaped passage 12, as shown in the front view of fig. 6, namely: the lower bottom surface is flush, and the upper surface is also flush.
The structure provided in this embodiment does not increase the width of the longitudinal section of the primary separation channel 1, and can enable the air flow to flow from the end of the secondary separation structure to the outside of the nested structure through the second straight tube channel 22 without collision with other structures when the secondary structure is embedded in the primary structure; such that the engagement of the structure upstream of the air flow inlet 111 with the structure downstream of the air flow outlet 221 may be provided within a height range not exceeding that occupied by the entire secondary separation structure; conversely, if the air flow fails to flow from the end of the secondary separation structure to the outside of the nested structure, the air flow must be vented from the inside by opening an outlet perpendicular to the plane of rotation, so that the engagement of the downstream device with the outlet perpendicular to the plane of rotation necessarily increases the thickness of the overall device, which makes it difficult to meet the stringent requirements of products such as sweeping robots for product size.
Example 4
The dust removing device comprises the embedded secondary cyclone separation structure applied to the narrow space, provided in the embodiment 1, the embodiment 2 or the embodiment 3.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.
Claims (9)
1. The embedded secondary cyclone separation structure is applied to a narrow space and is characterized by comprising a primary separation channel, a secondary separation channel and a connection channel for connecting the primary separation channel and the secondary separation channel;
the primary separation channel comprises a first straight pipe channel and a first circular arc channel which are communicated, one end of the first straight pipe channel, which is far away from the first circular arc channel, is an air flow inlet, a first strip-shaped opening is formed in the first circular arc channel, and one end of the first circular arc channel, which is far away from the first straight pipe channel, is communicated with the first end of the connecting channel;
the second-stage separation channel comprises a second straight pipe channel and a second circular arc-shaped channel which are communicated, one end of the second straight pipe channel, which is far away from the second circular arc-shaped channel, is an airflow outlet, a second strip-shaped opening is formed in the second circular arc-shaped channel, and one end of the second circular arc-shaped channel, which is far away from the second straight pipe channel, is communicated with the second end of the connecting channel;
the first circular arc-shaped channel is sleeved on the outer side of the second circular arc-shaped channel.
2. The embedded secondary cyclone separation structure applied to a small space according to claim 1, wherein a first dust collecting chamber is arranged on the outer side of the first circular arc-shaped channel, and the first dust collecting chamber is communicated with the first circular arc-shaped channel through the first strip-shaped opening; a second dust collecting chamber is arranged on the outer side of the second circular arc-shaped channel and is communicated with the second circular arc-shaped channel through the second strip-shaped opening; the second dust collection chamber is located between the first circular arc-shaped channel and the second circular arc-shaped channel.
3. The embedded secondary cyclone separating structure for a small space according to claim 2, wherein the first strip-shaped opening and the second strip-shaped opening are respectively positioned at the upper half parts of the first circular arc-shaped channel and the second circular arc-shaped channel.
4. The in-line secondary cyclone separation structure for a small space according to claim 1, wherein the primary separation channel, the secondary separation channel and the engagement channel have the same longitudinal cross-sectional area.
5. The embedded secondary cyclone separation structure applied to a narrow space according to claim 4, wherein the connecting channel comprises a deformed channel section, a third circular arc channel and a connecting deformed channel section which are communicated in sequence, a first end of the deformed channel section is communicated with one end of the first circular arc channel far away from the first straight pipe channel, and a second end of the deformed channel section is communicated with the third circular arc channel; the engagement deformation channel section is communicated with one end, far away from the second straight pipe channel, of the second circular arc-shaped channel.
6. The in-line secondary cyclone separator structure for a small space according to claim 5, wherein the deformed channel section, the third circular arc-shaped channel and the joined deformed channel section have equal longitudinal cross-sectional areas; the length of the longitudinal section of the deformation channel section is gradually decreased from the second end to the first end; the width of the longitudinal section of the deformation channel section is gradually increased from the second end to the first end; the length and width dimensions of the longitudinal section of the linking deformation channel section are unchanged, and the position of the linking deformation channel section is gradually increased from the connecting end of the third circular arc-shaped channel to the connecting end of the second circular arc-shaped channel.
7. The in-line secondary cyclone separator structure for small space according to claim 6, wherein the length of the longitudinal section of the first end of the deformation channel section is 1/2 of the length of the longitudinal section of the second end of the deformation channel section; the width of the longitudinal section of the second end of the deformation channel section is 1/2 of the width of the longitudinal section of the first end of the deformation channel section.
8. The embedded secondary cyclone separating structure for a small space according to claim 7, wherein the width of the longitudinal section of the third circular arc-shaped channel is 1/2 of the width of the longitudinal section of the primary separating channel, and the lower bottom surface of the third circular arc-shaped channel is located on the same plane as the lower bottom surfaces of the first straight pipe channel and the first circular arc-shaped channel;
the lower bottom surface of the second straight pipe channel is placed on the upper surface of the third circular arc channel, and the upper surfaces of the second straight pipe channel and the second circular arc channel are positioned on the same plane with the upper surfaces of the first straight pipe channel and the first circular arc channel.
9. A dust removal apparatus comprising an in-line secondary cyclonic separating structure as claimed in any one of claims 1 to 8, for use in small spaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410228122.XA CN117861877A (en) | 2024-02-29 | 2024-02-29 | Be applied to embedded second grade whirlwind separation structure in narrow and small space and dust collecting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410228122.XA CN117861877A (en) | 2024-02-29 | 2024-02-29 | Be applied to embedded second grade whirlwind separation structure in narrow and small space and dust collecting equipment |
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| Publication Number | Publication Date |
|---|---|
| CN117861877A true CN117861877A (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410228122.XA Pending CN117861877A (en) | 2024-02-29 | 2024-02-29 | Be applied to embedded second grade whirlwind separation structure in narrow and small space and dust collecting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117861877A (en) |
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2024
- 2024-02-29 CN CN202410228122.XA patent/CN117861877A/en active Pending
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