CN117339311B - Radial expansion type annular dust removal channel based on cyclone separation principle - Google Patents
Radial expansion type annular dust removal channel based on cyclone separation principle Download PDFInfo
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- CN117339311B CN117339311B CN202311564434.XA CN202311564434A CN117339311B CN 117339311 B CN117339311 B CN 117339311B CN 202311564434 A CN202311564434 A CN 202311564434A CN 117339311 B CN117339311 B CN 117339311B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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Abstract
本发明公开一种基于旋风分离原理的径向扩展式环形除尘通道，属于净化除尘技术领域，包括：气流入口、一级环形除尘通道段、两级衔接段、二级环形除尘通道段和气流出口，一级环形除尘通道段包括一级通道，二级环形除尘通道段包括二级通道，气流入口、一级通道、两级衔接段、二级通道和气流出口依次连通，一级通道的末端外侧壁上设置有第一除尘口，二级通道的末端外侧壁上设置有第二除尘口，一级通道的截面积、两级衔接段的通道截面积与二级通道的截面积相等，一级通道的截面上在环形除尘通道的径向长度a1小于二级通道的截面上径向长度a2。本发明结构简单，气流在运动过程速度不变，有利于气流稳定，损失的压降低，除尘效率高。
The present invention discloses a radial expansion type annular dust removal channel based on the cyclone separation principle, belonging to the technical field of purification and dust removal, comprising: an airflow inlet, a primary annular dust removal channel section, a two-stage connection section, a secondary annular dust removal channel section and an airflow outlet, the primary annular dust removal channel section comprises a primary channel, the secondary annular dust removal channel section comprises a secondary channel, the airflow inlet, the primary channel, the two-stage connection section, the secondary channel and the airflow outlet are connected in sequence, a first dust removal port is arranged on the terminal outer wall of the primary channel, a second dust removal port is arranged on the terminal outer wall of the secondary channel, the cross-sectional area of the primary channel, the channel cross-sectional area of the two-stage connection section is equal to the cross-sectional area of the secondary channel, and the radial length a1 of the annular dust removal channel on the cross-sectional area of the primary channel is smaller than the radial length a2 of the cross-sectional area of the secondary channel. The present invention has a simple structure, the airflow speed remains unchanged during the motion process, which is conducive to the stability of the airflow, the loss of pressure drop, and high dust removal efficiency.
Description
Technical Field
The invention belongs to the technical field of purification and dust removal, and particularly relates to a radial expansion type annular dust removal channel based on a cyclone separation principle.
Background
The existing cyclone separation-based dust removing equipment is generally in various cyclone cone structures, the core structure of the cyclone cone is that an airflow channel rotates around a central cylinder, so that centrifugal force is generated, dust and ash are separated, the structure of the cyclone cone is complex, airflow flowing conditions are complex, strong turbulence is easy to generate, pressure drop loss is large, single-stage dust removing efficiency is not high enough, two-stage and multi-stage dust removing modes often generate great pressure drop loss, and the current cyclone separation principle is utilized to directly remove dust in the channel.
Disclosure of Invention
In view of the above, the present invention provides a radial expansion type annular dust removal channel based on cyclone separation principle, which is used for solving the above problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The radial expansion type annular dust removal channel based on the cyclone separation principle comprises an airflow inlet, a primary annular dust removal channel section, a two-stage connection section, a secondary annular dust removal channel section and an airflow outlet, wherein the primary annular dust removal channel section comprises a primary channel, the secondary annular dust removal channel section comprises a secondary channel, the airflow inlet, the primary channel, the two-stage connection section, the secondary channel and the airflow outlet are sequentially communicated, a first dust removal opening is formed in the outer side wall of the tail end of the primary channel, a second dust removal opening is formed in the outer side wall of the tail end of the secondary channel, the sectional area of the primary channel, the sectional area of the channel of the two-stage connection section and the sectional area of the secondary channel are equal, and the radial length a1 of the annular dust removal channel on the section of the primary channel is smaller than the radial length a2 of the section of the secondary channel.
Further, a first-stage dust collection barrel is arranged on the first dust collection port.
Further, a secondary dust collection barrel is arranged on the second dust collection port.
Further, the device also comprises a plurality of annular dust removal channel sections and a plurality of connection sections, wherein the head ends of the annular dust removal channel sections are communicated with the tail ends of the two-stage annular dust removal channel sections, the annular dust removal channel sections are communicated through the connection sections, and the tail ends of the annular dust removal channel sections are communicated with the air flow outlet.
Further, the relation between the radial length a1 of the section of the primary channel and the radial length a2 of the section of the secondary channel is 1.3a1< a2<2a2.
Further, the primary annular dust removal channel section, the secondary annular dust removal channel section and the plurality of annular dust removal channel sections are located on the same plane.
Further, the primary annular dust removal channel section, the secondary annular dust removal channel section and the plurality of annular dust removal channel sections are sequentially spirally raised or sequentially spirally lowered.
The invention has the beneficial effects that:
1. The dust and ash can gradually get close to the outside of the channel in the radial direction under the action of centrifugal force, the longer the radial length of the channel is, the more easy the dust and ash can be gathered to the part close to the inner wall of the outside of the channel, the cleaner the air flow close to the inner wall of the inside of the channel is, the invention communicates the primary channel with the secondary channel through the two-stage connecting section, because the radial length a1 of the section of the primary channel is smaller than the radial length a2 of the section of the secondary channel, the circulating channel presents radial gradual expansion, the dust and ash in the air flow can be gathered to the inner wall of the outside of the secondary channel easily than the condition that the length a1 of the maintenance channel is not changed, and the higher dust removing efficiency than the condition that the radial length of the maintenance channel is unchanged is realized;
2. The sectional area of the primary channel, the sectional area of the two-stage connecting section and the sectional area of the secondary channel are equal, so that the flow area a1×b1 of the primary channel, the flow area of the two-stage connecting section and the flow area a2×b2 of the secondary channel are consistent, the flow velocity of the air flow in the channel is kept unchanged as a whole, the air flow is stable, and the energy loss is reduced
3. The speed of the air flow is unchanged in the moving process, the air flow is stable, the lost pressure drop is low, the increased pressure drop loss caused by multiple dust removal is very easy to realize, the higher dust removal efficiency can be obtained under the condition of lower pressure drop loss, the structure is simple, the manufacturing and maintenance cost is low, and the noise pollution is very small.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a radial expansion type annular dust removal channel based on cyclone separation principle.
Fig. 2 is a top view of a radially expanded annular dust removal channel based on the cyclone principle.
FIG. 3 is a cross-sectional view of C1-C1 of FIG. 1.
Fig. 4 is a cross-sectional view of C2-C2 of fig. 2.
Fig. 5 is a cross-sectional view of C3-C3 of fig. 2.
Wherein, in the figure:
The dust collection device comprises a 1-air inlet, a 2-primary annular dust collection channel section, a 3-two-stage connecting section, a 4-secondary annular dust collection channel section, a 5-air outlet, a 201-primary channel, a 202-first dust collection port, a 203-primary dust collection barrel, a 401-secondary channel, a 402-second dust collection port and a 403-secondary dust collection barrel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to the accompanying drawings 1-5, the invention provides a radial expansion type annular dust removal channel based on a cyclone separation principle, which comprises an airflow inlet 1, a primary annular dust removal channel section 2, a two-stage connection section 3, a secondary annular dust removal channel section 4 and an airflow outlet 5, wherein the primary annular dust removal channel section 2 comprises a primary channel 201, the secondary annular dust removal channel section 4 comprises a secondary channel 401, the airflow inlet 1, the primary channel 201, the two-stage connection section 3, the secondary channel 401 and the airflow outlet 5 are sequentially communicated, a first dust removal port 202 is arranged on the outer side wall of the tail end of the primary channel 201, a primary dust collection barrel 203 is arranged on the first dust removal port 202, a second dust removal port 402 is arranged on the outer side wall of the tail end of the secondary channel 401, a secondary dust collection barrel 403 is arranged on the second dust removal port 402, and the section of the primary channel 201 is provided with a1 and b1 in radial length of the annular dust removal channel; the radial length of the annular dust removing channel on the section of the secondary channel 401 is a2, the height is b2, the sectional area of the primary channel 201, the sectional area of the channel of the two-stage connecting section 3 and the sectional area of the secondary channel 401 are equal, the flow area a1×b1 of the primary channel 201, the flow area of the two-stage connecting section 3 and the flow area a2×b2 of the secondary channel 401 are consistent, so that the flow velocity of the air flow in the channel is kept unchanged as a whole, the air flow is stable, and the energy loss is reduced.
The dust-containing air flow enters from the air flow inlet 1, centrifugal force is generated in the air flow in the first-stage channel 201, dust and ash gradually approach to the inner wall of the outer side of the channel in the radial direction under the action of the centrifugal force, the dust and ash content is higher when the dust and ash are farther from the rotating center in the radial direction, the dust and ash with large mass and large particle size fly into the first-stage dust collection barrel 203 when the dust and ash flow passes through the first dust collection opening 202, the air flow containing fine dust and ash continuously flows forwards along the two-stage connecting section 3 after the air flow is purified once, as shown in fig. 3 and 4, the air flow flows to the second-stage channel 401 through the two-stage connecting section 3, the fine dust and ash purified through the first-stage channel 201 are further purified when the dust and ash flows into the second-stage dust collection barrel 403, and the clean air flow flows out.
The dust and ash can gradually get close to the outside of the channel in the radial direction under the action of centrifugal force, the longer the radial length of the channel is, the more easy the dust and ash particles are gathered to the part close to the inner wall of the outside of the channel, and the cleaner the air flow close to the inner wall of the inside of the channel is, the invention communicates the primary channel 201 and the secondary channel 401 through the two-stage connecting section 3, because the radial length a1 of the cross section of the primary channel 201 is smaller than the radial length a2 of the cross section of the secondary channel 401, the circulating channel presents a radial gradual expansion, the dust and ash particles in the air flow can be gathered to the inner wall of the outside of the secondary channel 401 easily than the maintenance of the length a1 of the channel is unchanged, so that the tiny dust and ash particles in the air flow can be separated more easily when the air flow flows from the opening of the outside of the secondary channel 401, and the dust removing efficiency is higher than the maintenance of the radial length of the channel is unchanged.
In a preferred embodiment, the radial expansion type annular dust removal channel based on the cyclone separation principle further comprises a plurality of annular dust removal channel sections and a plurality of connection sections, the head ends of the annular dust removal channel sections are communicated with the tail ends of the two-stage annular dust removal channel sections 4, the annular dust removal channel sections are communicated through the connection sections, and the tail ends of the annular dust removal channel sections are communicated with the airflow outlet 5, namely, the invention shows a two-stage dust removal structure, and a multi-stage structure larger than the two stages can be realized by increasing the number of the annular dust removal channel sections and the connection sections.
In a preferred embodiment, the relation between the radial length a1 of the cross section of the primary channel 201 and the radial length a2 of the cross section of the secondary channel 401 is 1.3a1< a2<2a2, the dust removal efficiency between the primary channel 201 and the secondary channel 401 is limited in the radial direction, if the expansion is too little, the dust removal efficiency is limited, if the expansion is too much, the air flow stability is not favored, and the relation between the radial length a1 of the cross section of the primary channel 201 and the radial length a2 of the cross section of the secondary channel 401 is high when the relation between 1.3a1< a2<2a2 is satisfied.
In a preferred embodiment, the primary annular dust removal channel section 2, the secondary annular dust removal channel section 4 and the plurality of annular dust removal channel sections can be located on the same plane, and can also be sequentially spirally raised or sequentially spirally lowered.
In a preferred embodiment, the invention can be used as a separate dust removal device or can be connected to other dust removal devices at the air flow outlet 5 as a pre-purification for further dust removal.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
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| CN202311564434.XA CN117339311B (en) | 2023-11-21 | 2023-11-21 | Radial expansion type annular dust removal channel based on cyclone separation principle |
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| CN202311564434.XA CN117339311B (en) | 2023-11-21 | 2023-11-21 | Radial expansion type annular dust removal channel based on cyclone separation principle |
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| CN117339311B true CN117339311B (en) | 2025-03-14 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209005397U (en) * | 2018-09-21 | 2019-06-21 | 江苏海事职业技术学院 | A spiral expanding dust collector |
| CN114522476A (en) * | 2022-03-07 | 2022-05-24 | 广东石油化工学院 | Reducing spiral dust removal channel based on cyclone separation principle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102481587A (en) * | 2009-08-31 | 2012-05-30 | 巴西石油公司 | Fluid separation hydrocyclone |
| US10695704B2 (en) * | 2016-07-20 | 2020-06-30 | General Electric Company | Multi-station debris separation system |
| CN107281822B (en) * | 2017-07-07 | 2024-11-22 | 郝占宁 | A spiral demisting and dehumidifying device |
| CN210700672U (en) * | 2019-09-04 | 2020-06-09 | 厦门理工学院 | Cyclone powder separator |
| CN114405694B (en) * | 2022-01-24 | 2023-07-21 | 广东石油化工学院 | Cyclone assembly and separator therewith |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209005397U (en) * | 2018-09-21 | 2019-06-21 | 江苏海事职业技术学院 | A spiral expanding dust collector |
| CN114522476A (en) * | 2022-03-07 | 2022-05-24 | 广东石油化工学院 | Reducing spiral dust removal channel based on cyclone separation principle |
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