CN113827129A - Cyclone separation body, gas-dust separation device and dust collector - Google Patents
Cyclone separation body, gas-dust separation device and dust collector Download PDFInfo
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- CN113827129A CN113827129A CN202111160330.3A CN202111160330A CN113827129A CN 113827129 A CN113827129 A CN 113827129A CN 202111160330 A CN202111160330 A CN 202111160330A CN 113827129 A CN113827129 A CN 113827129A
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- 238000000926 separation method Methods 0.000 title claims abstract description 204
- 239000000428 dust Substances 0.000 title claims abstract description 104
- 230000002093 peripheral effect Effects 0.000 claims abstract description 57
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/24—Hand-supported suction cleaners
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
A cyclone separator, a gas-dust separating device and a dust collector comprise a plurality of separating cones which are arranged along the axial direction, wherein cavities are arranged in the separating cones, the top ends of the separating cones comprise cone openings, the upper end parts of the separating cones are provided with cut-in ports, air inlet channels are arranged outside the separating cones, and the cavities at the upper ends of the separating cones are communicated with the air inlet channels through the cut-in ports; the plurality of separating cones comprise a plurality of peripheral separating cones and a middle separating cone arranged among the plurality of peripheral separating cones; the device is characterized in that the maximum rotation radius of the upper end cavity of the middle separation cone is larger than that of the upper end cavity of the peripheral separation cone, and two or more cutting inlets are uniformly distributed on the middle separation cone. The cyclone separator also comprises a shell, wherein the top end of the shell comprises a shell opening, a shell top cover which is detachably covered and sealed on the shell opening, and a cyclone separator arranged in the shell. The dust collector comprises a cyclone separation body and a gas-dust separation device.
Description
Technical Field
The invention relates to the technical field of dust collectors, in particular to a cyclone separating body, a gas-dust separating device using the cyclone separating body and a dust collector.
Background
In the air-dust separation technology of the dust collector, besides the traditional filter screen is used for air-dust separation, the air-dust separation method is also a relatively common air-dust separation technology. The main technical principle of cyclone separation is to separate fine dust contained in air by introducing the air tangentially into a cone and rotating in the cone, wherein the rotating airflow in the cone overflows upwards and the separated dust falls down and is collected. A cyclone separating body manufactured by using the cyclone separating principle has a structure mainly including a plurality of separating cones including a plurality of peripheral separating cones and a middle separating cone disposed between the peripheral separating cones; for example, application No. 200620073309.4 entitled "cyclonic separating apparatus for a vacuum cleaner", comprising upstream cyclonic separating apparatus, downstream cyclonic separating apparatus, an airflow passageway connecting the upstream cyclonic separating apparatus and the downstream cyclonic separating apparatus; the upstream cyclone separation device comprises a first cyclone barrel, a dust collecting barrel and a mesh filter cover, the mesh filter cover is arranged between the first cyclone barrel and the dust collecting barrel, and the inner cavity of the first cyclone barrel is communicated with the airflow channel through holes in the mesh filter cover; the downstream cyclone separation device comprises a plurality of second cyclone barrels arranged in parallel and a plurality of central columns, and the central columns respectively extend downwards into the inner cavities of the second cyclone barrels; the second cyclone barrels are inverted cone-shaped barrels with large upper ends and small lower ends, openings are formed in the bottoms of the second cyclone barrels, the openings face the openings in the tops of the dust deposition barrels, and the second cyclone barrels are completely arranged on the upper portions of the first cyclone barrels. Similar separation cone structures are also disclosed in the following patent documents with application numbers 200920189491.3, 201420529373.3, etc.
The invention patent application with the application number of 202010273737.6, entitled "cyclone separation device and cleaning equipment", which is proposed by Beijing Stone science and technology company in 2020, 04/09, discloses a separator, which comprises a first group of cyclone tubes and a second group of cyclone tubes; the first group of cyclone tubes and the second group of cyclone tubes are distributed around the longitudinal axis of the cyclone separation device respectively, and the first group of cyclone tubes surrounds the second group of cyclone tubes; the first set of cyclone tubes comprises at least two first cyclone tubes defining a first longitudinal axis defining an angle with the longitudinal axis of the cyclonic separating apparatus; the second set of cyclone tubes comprises at least two second cyclone tubes defining a second longitudinal axis which is parallel to but not coincident with the longitudinal axis of the cyclonic separating apparatus.
Disclosure of Invention
In view of the above specific structure of various cyclone separating bodies manufactured by using the cyclone separating principle, various enterprises are currently expecting to further improve the gas-dust separating effect mainly by improving the specific structure of the cyclone separating body, and such an effect is necessary although the improvement is difficult. Based on the technical purpose of further improving the gas-dust separation effect, the invention provides a cyclone separation body, which comprises a plurality of separation cones arranged along the axial direction, wherein cavities are arranged in the separation cones, the top ends of the separation cones comprise cone openings, the upper end parts of the separation cones are provided with cut-in ports, air inlet channels are arranged outside the separation cones, and the cavities at the upper ends of the separation cones are communicated with the air inlet channels through the cut-in ports; the plurality of separation cones comprise a plurality of peripheral separation cones and a middle separation cone arranged among the plurality of peripheral separation cones; the device is characterized in that the maximum rotation radius of the upper end cavity of the middle separation cone is larger than that of the upper end cavity of the peripheral separation cone, and two or more than two cutting inlets are uniformly distributed on the middle separation cone.
Thereby the separation cone, thereby both ends are the truncated form about its, and both ends are uncovered, thereby contain at least one section and be conical inner chamber and can let rotatory air constantly by the effect that promotes centrifugal force and accelerate the gas-dust separation when rotatory in the conical inner chamber. Wherein the rotating air flow escapes from the cone opening of the separation cone and the separated dust is collected from the lower end opening of the separation cone. In the specific structural arrangement of the separation cone, the separation cone may include a section of truncated cone-shaped wall body and a section of cylindrical column-shaped wall body, which are smoothly connected up and down to define a cavity in the separation cone together with the cone-shaped wall body, the upper end cavity of the separation cone is cylindrical and the lower end cavity is in an inverted cone shape, the lower end of the separation cone is truncated to form a dust exhaust port, so that air entering from the cutting port rotates in the cavity, and dust particles in the air slide down along the cone-shaped wall body due to centrifugal action and fall below the separation cone from the dust exhaust port.
The air inlet channel is a space channel for guiding external air to flow to the separation cone, the air inlet channel is defined by a channel side wall, a channel bottom wall and a channel top wall, the air inlet channel communicated with the middle separation cone is arranged on the side edge of the peripheral separation cone, and in order to improve the space utilization rate, one part of the channel side wall is formed by adjacent wall bodies of the separation cone. The top wall of the inlet channel may be a cover plate attached to the channel side walls, and in order to reduce the manufacturing difficulty of the separation cone, the top wall of the inlet channel may be provided on the tub top mentioned below.
The cutting openings are openings which are arranged on the separation cone and can be communicated with the upper end cavity of the separation cone and the air inlet channel, two or more cutting openings are uniformly arranged on the middle separation cone, each cutting opening is communicated with an independent air inlet channel, or in another embodiment, one air inlet channel is communicated with 2 or more than 2 cutting openings. The number of the incisions on the middle separation cone may be 2, 3, 4 or more, and the plurality of incisions is evenly distributed along the separation cone.
The maximum rotation radius of the upper end cavity of the middle separation cone and the peripheral separation cone refers to the internal maximum rotation inner diameter defined by the conical or cylindrical wall body at the upper end of the middle separation cone and the peripheral separation cone, and generally speaking, the larger the maximum rotation radius of the upper end cavity is, the larger the volume of the upper end cavity is, and thus more air can pass through the upper end cavity at the same time. In addition, the central separation cone having a larger diameter is arranged in a central position and a plurality of peripheral separation cones having a smaller diameter are arranged in peripheral positions, which enables maximum utilization of the space occupied by the cyclonic separating body in cross section.
The axial arrangement of the first set of cyclone tubes and the second set of cyclone tubes disclosed in the invention patent application with the application number 202010273737.6, entitled "cyclone separation device and cleaning device", may be adopted, for example, such that the extending axis of the middle separation cone is parallel to the central axis of the cyclone separation body, and the extending axis of the peripheral separation cone forms an included angle with the central axis of the cyclone separation body.
According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: firstly, the maximum rotation radius of the upper end cavity of the middle separation cone is larger than that of the upper end cavity of the peripheral separation cone, so that the volume of the cavity of the middle separation cone is greatly increased, the air throughput is increased, and the use efficiency of the separation cone is improved; secondly, from the viewpoint that the maximum radius of rotation of the upper end cavity of the peripheral separation cone is smaller than that of the upper end cavity of the middle separation cone, the smaller size of the peripheral separation cone can instead make more use of the peripheral space and leave a larger arrangement space for the middle separation cone. Thirdly, the plurality of the cut-in ports are arranged on the middle separation cone, so that the rotary kinetic energy of air can be supplemented to the cavity at the upper end of the middle separation cone within a small arc distance, the attenuation of the air flow speed is favorably reduced, and the separation efficiency of the middle separation cone is favorably improved; fourth, compared to the second cyclone tube methods disclosed in the patent application No. 202010273737.6 entitled "cyclone separation apparatus and cleaning device", the present invention has a relatively simple structure and thus a simple mold structure and a long service life. Fifth, the larger diameter of the central separation cone causes it to be in closer proximity to the peripheral separation cone, which advantageously reduces the length of the air intake passage connected to the central separation cone and thereby reduces the attenuation of air energy in the air intake passage.
Because the cyclone separation body has above advantage, so can be applied to gas-dust separator, gas-dust separator includes the casing, the top of casing is including the shell is uncovered, still including detachably cap seal to the shell overhead cover of the uncovered department of shell and install in the casing the cyclone separation body, be provided with the shell air intake on the shell lateral wall of casing, be provided with the shell cover air outlet on the shell overhead cover, the awl of separation cone is uncovered the intercommunication the shell cover air outlet, follow the shell air intake enters into the wind warp in the casing the inlet channel is rotatory to enter into in the separation cone, follow the wind warp that the upper end cavity of separation cone came out is discharged through the shell cover air outlet. The shell comprises a shell side wall and a shell bottom cover, the shell side wall and the shell bottom cover jointly define the shell cavity, and the shell side wall and the shell bottom cover can be of a detachable structure or an integrated structure. Since the air entering the housing from the housing inlet rotates into the separation cone through the air inlet channel, this definition practically implies that the air entering the housing from the housing inlet cannot directly bypass the cyclone separation body and exit through the housing cover outlet.
The cyclone separating body has a very good separating effect when used for separating fine particle dust, but the entering wind usually carries some larger particle dust or silk threads, in order to make the cyclone separating body exert better effect and reduce the problem that the dust exhaust port is blocked, a further technical scheme can be that the gas-dust separating device further comprises an intermediate barrel body, the top end of the intermediate barrel body comprises a barrel opening and a barrel top cover which is detachably covered on the barrel opening, a barrel wall (comprising a barrel side wall or a barrel bottom wall) of the intermediate barrel body is provided with a barrel air inlet integrated by a plurality of micropores, the barrel top cover is provided with a barrel cover air outlet, at least part of the separating cyclone body is arranged in the intermediate barrel body, when the barrel top cover is covered on the barrel opening, not only the cone opening of the separating cone is communicated with the barrel cover air outlet, but also the barrel top cover and the cyclone body are matched up and down to form the air inlet communicating channel A lane; the air entering the shell from the shell air inlet enters the middle barrel through the barrel air inlet, the air in the middle barrel rotates through the air inlet channel to enter the separation cone, and the air coming out of the cavity at the upper end of the separation cone enters the shell cover air outlet through the barrel cover air outlet and is discharged. Therefore, the air inlet of the barrel integrated by the micropores is arranged at the upstream of the cyclone separation body, so that large-particle dust or silk threads in the air can be effectively filtered, and the gas-dust separation device can form a multi-stage separation effect from coarse to fine. The top cover is combined with the upper end of the cyclone separating body and can be used as the top surface of the air inlet channel and the upper end cavity of the separating cone, and a sealing gasket can be arranged between the top cover and the cyclone separating body in order to reduce air blowby at the joint of the top cover and the cyclone separating body.
Furthermore, an air guide slope is arranged on the outer side of the side wall of the middle barrel body, the air guide slope is opposite to the shell air inlet, and the air guide slope is used for guiding air entering the shell from the shell air inlet to flow in a rotating mode along the same direction.
In order to clean the dust accumulated in the shell, a shell bottom cover is arranged at the lower end of the shell in an overturning manner, the lower end of the middle barrel body is open, and when the shell bottom cover covers the shell, the lower end opening of the middle barrel body abuts against the shell bottom cover. The middle barrel body divides the cavity in the shell into a middle separation cavity and a peripheral separation cavity, wherein the peripheral separation cavity is used for collecting large-particle dust or silk threads separated by the air inlet of the middle barrel body, and the middle separation cavity is used for collecting fine-particle dust separated by the cyclone separation body; the convenience of dust cleaning is greatly improved by arranging the shell bottom cover capable of being turned over and opened.
In order to further improve the dust filtering effect of the gas-dust separating device, a further technical scheme can be that an air filter screen is arranged on a circulation path between the barrel cover air outlet and the shell cover air outlet. Utilize airstrainer filters the air and can effectively filter the tiny dust particle in the air, improves greatly and follows the cleanliness factor of bung air outlet exhaust air.
Furthermore, the invention also relates to a dust collector which is characterized by comprising any one of the gas-dust separation devices. The dust collector is also provided with a power device and a suction head part which are used for sucking the gas-dust separation device so as to realize gas-dust separation.
The invention can be applied to cyclone separating body, air-dust separating device and dust collector due to the above characteristics and advantages.
Drawings
FIG. 1 is a schematic view of a vacuum cleaner to which the present invention is applied;
FIG. 2 is a schematic axial view of the gas-dust separating apparatus;
FIG. 3 is a schematic view of an exploded structure of the gas-dust separating apparatus;
FIG. 4 is a schematic sectional view of the gas-dust separating apparatus in a front view;
FIG. 5 is a schematic view of a structure of the cyclone separation body in a shaft side direction;
FIG. 6 is a schematic view of a top view of the cyclonic separating body;
FIG. 7 is a schematic view of the cross-sectional structure taken along the line A-A in FIG. 6;
FIG. 8 is a schematic cross-sectional view of the cyclone separation body and the top cover assembly;
FIG. 9a is a simplified cross-sectional schematic view of the cyclonic separating body showing the same radius of the separating cone;
FIG. 9b is a simplified cross-sectional schematic view of the cyclonic separating body showing a condition in which the radius of the central separating cone is greater than the radius of the peripheral separating cone;
FIG. 10 is a schematic view of the structure of the middle separation cone connecting 2 air inlet channels;
FIG. 11 is a schematic structural view of the middle separation cone connecting 3 air inlet channels;
FIG. 12 is a schematic view of the structure of the middle separation cone connecting 4 air inlet channels.
Detailed Description
The structure of the cyclone separating body, the air-dust separating apparatus and the vacuum cleaner to which the present invention is applied will be further described with reference to the accompanying drawings. Various implementation details disclosed below may be selectively applied or combined in one embodiment even if not directly related or synergistic in functional terms, except where expressly specified to belong to equivalent or alternative embodiments.
As shown in fig. 1, the vacuum cleaner comprises a main body 10, a connecting pipe 11 and a suction head 12, wherein the main body 10 comprises a power device (not shown), an air-dust separating device 13 and a holding part 14, and the power device, the air-dust separating device 13 and the holding part 14 are connected with each other to form an integral device. The connecting tube 11 is disposed between the main body 10 and the suction head 12, and the grip 14 is provided at one side of the power unit for gripping. The main structure of the cleaner will be described in detail with reference to the accompanying drawings.
The power device comprises a motor (not shown in the figure) and fan blades (not shown in the figure) arranged on the electrode shafts, and the fan blades are positioned at the downstream of the air-dust separation device 13, so that when the motor drives the fan blades to rotate, vacuum negative pressure for dust collection is formed. Therefore, when the motor works, if the wind resistance of the upstream air circulation is smaller, the larger the air amount which can be sucked by the fan blades is, and the working efficiency of the motor, namely the working efficiency of the dust collector is high.
The air-dust separating device 13 mainly separates air and dust flowing through the interior of the cyclone separating body 3 through a filter screen arranged in the air-dust separating device 13, and the air-dust separating device 13 is detachably connected with the power device; the gas-dust separating device 13 also comprises two ports, namely a gas inlet and a gas outlet, wherein the gas outlet of the gas-dust separating device 13 is positioned at the upstream of the power device, and the gas inlet of the gas-dust separating device 13 is communicated with the gas outlet of the connecting pipe part 11. Under the action of the vacuum negative pressure of the power device, the suction head part 12 can suck air and simultaneously suck dust, silk threads and other garbage on the surface of the deposited matters and convey the garbage to the air-dust separation device 13 through the connecting pipe part 11.
Since the air-dust separating device 13 includes a plurality of filtering structures, the air-dust separating device 13 generates a large resistance in the whole dust collector, and is a main component affecting the dust collecting efficiency of the dust collector. As shown in fig. 2 to 4, the gas-dust separating device 13 includes a casing 2, the top end of the casing 2 includes a casing opening, the casing 2 is cylindrical and includes a casing side wall 21 and a casing bottom cover 22, the casing side wall 21 and the casing bottom cover 22 define a casing cavity together, wherein a casing air inlet 23 is provided on the casing side wall 21, and the casing air inlet 23 is used as an air inlet of the gas-dust separating device 13 and is communicated with an air outlet of the connecting pipe portion 11.
As shown in fig. 3 to 8, the gas-dust separating device 13 further includes the cyclonic separating body 3 installed in the housing 2, the cyclonic separating body 3 includes a plurality of separating cones arranged along an axial direction, the separating cones have cavities, the top ends of the separating cones include cone openings, the upper end portions of the separating cones are provided with cut-in ports 33, air inlet channels 35 are arranged outside the separating cones, the cavities at the upper ends of the separating cones are communicated with the air inlet channels 35 through the cut-in ports 33, at least the tail ends of the air inlet channels 35 are tangential bleed air sections, and the tangential bleed air sections guide air to flow along a tangential direction of the cavities at the upper ends of the separating cones so as to provide circumferential rotating air flow to the cavities at the upper ends of the separating cones along the tangential direction; the plurality of separation cones comprises a plurality of peripheral separation cones 3a and a middle separation cone 3b arranged between the plurality of peripheral separation cones 3 a; the maximum rotation radius of the upper end cavity of the middle separation cone 3b is larger than that of the upper end cavity of the peripheral separation cone 3a, and two or more than two cutting inlets 33 are uniformly distributed on the middle separation cone 3 b.
As shown in fig. 5, the separation cone includes a truncated cone-shaped wall body 31 and a cylindrical column-shaped wall body 32 arranged at the end of the cone-shaped wall body 31 with the larger diameter, the cone-shaped wall body 31 and the column-shaped wall body 32 define the cavity of the separation cone together, the cavity at the upper end of the separation cone is cylindrical, the cavity at the lower end of the separation cone is in an inverted cone shape, and the lower end of the separation cone is truncated to form a dust exhaust port 34. As an equivalent solution, the separation cone may only retain the conical wall 31, the cutting opening 33 is arranged on the conical wall 31, and the upper end cavity of the corresponding separation cone is an end cavity with a larger diameter of the conical cavity.
In order to fully utilize the limited space and improve the filtering efficiency of the cyclone separating body 3, as shown in fig. 5 to 8, the separating cones include a plurality of peripheral separating cones 3a and a middle separating cone 3b disposed between the peripheral separating cones 3 a; the peripheral separation cones 3a and the middle separation cones 3b are arranged along the axial direction of the cyclone separation body 3, in this embodiment, the number of the middle separation cones 3b is 1, and the axis thereof coincides with the axis of the cyclone separation body 3; whereas the axis of said peripheral separation cone 3a is arranged at an angle to the axis of said cyclonic separating body 3. Wherein, the maximum radius of rotation of the upper end cavity of the said middle separation cone 3b is greater than the maximum radius of rotation of the upper end cavity of the said peripheral separation cone 3a so as to increase the air throughput, has improved the use efficiency of the said separation cone, namely can improve the drawing force of the electrical machinery, secondly compare with 202010273737.6, the invention patent application named "cyclone separator and cleaning equipment" discloses a plurality of second cyclone tube methods, this structure is relatively simple and make the structure of the manufacturing mould simple too, the service life is high, in addition the said middle separation cone 3b with larger diameter makes it closer to the said peripheral separation cone 3a, in this way, help to reduce the length of the inlet channel 35 connected to the said middle separation cone 3b and thus reduce the attenuation of the air energy on the said inlet channel 35.
In order to facilitate air intake, as shown in fig. 5, each peripheral separation cone 3a is provided with an inlet 33, and each inlet 33 is communicated with an air intake passage 35; the middle separation cone 3b with a larger upper cavity needs to be matched with the larger air inlet channel 35 and the larger cut-in port 33, but the excessively large air inlet channel and the excessively large cut-in port 33 are not beneficial to the rotating effect of air in the cavity, so that two or more cut-in ports 33 are uniformly distributed on the middle separation cone 3b under the condition that the air inlet channel 35 is not enlarged, and each cut-in port 33 is communicated with an independent air inlet channel 35. As shown in fig. 10, the central separation cone 3b is connected to two of the inlet ports 33 and the inlet passage 35. As shown in fig. 11, the middle separation cone 3b is connected to three of the inlet ports 33 and the inlet passage 35. As shown in fig. 5 and 12, the middle separation cone 3b is connected with four cutting ports 33 and four air inlet channels 35; and the arranged cutting ports 33 are uniformly arranged in the circumferential direction. Through evenly arrange a plurality ofly on middle part separation cone 3b incision mouth 33 can be in less arc distance to the rotatory kinetic energy of middle part separation cone 3 b's upper end cavity replenishment air is favorable to slowing down the decay of air flow velocity, thereby is favorable to improving the separation efficiency of middle part separation cone 3 b. The air inlet channel 35 communicating with the middle separation cone 3b is arranged at the side of the peripheral separation cone 3a, and in order to improve the space utilization, part of the side of the peripheral separation cone 3a is used as the channel side wall of the air inlet channel 35, so that the air inlet ends of the air inlet channels 35 communicating with the peripheral separation cone 3a and the middle separation cone 3b are arranged along the outer edge of the cyclone separation body 3.
In respect of the fact that the maximum radius of rotation of the upper end cavity of the central separation cone 3b is greater than the maximum radius of rotation of the upper end cavity of the peripheral separation cone 3a, which is advantageous for increasing the air throughput, a simple example is shown below, as shown in fig. 9a and 9b, which are simplified cross-sectional views of the separation cone 13, the separation cones being arranged within the same radius R0, wherein 7 separation cones of the same radius R1 are provided in fig. 9a, the sum of the areas of the 7 separation cones being 7 a 1. Whereas in fig. 9b the radius of the peripheral separation cone 3a decreases by 0.82R 1 in number of 8, and the radius of the central separation cone 3b increases by 1.36R 1 in number of 1, calculated as the sum of the areas of the peripheral separation cone 3a and the central separation cone 3b in fig. 9b is 7.21 a 1. It follows that by increasing the radius of the central separating cone 3b and decreasing the radius of the peripheral separating cones 3a and correspondingly increasing the number of peripheral separating cones 3a, the total area of the separating cones can be effectively increased, which means that an increased air throughput and a maximized utilization of the cross-sectional area of the cyclone separating bodies is facilitated.
As for the mounting structure of the cyclone separating body 3, specifically, in the first embodiment, the cyclone separating body 3 can be directly placed in the housing cavity (not shown) of the housing 2, a housing top cover 6 is provided at the housing opening of the housing 2, the cyclone separating body 3 above the air inlet channel is hermetically connected with the housing side wall 21 of the housing 2 so as to allow the air in the housing cavity of the housing 2 to directly enter the air inlet channel 35, and the air coming out of the upper end cavity of the separating cone is directly discharged from the housing cover outlet 60 in the housing top cover 6. The path of the air through the gas-dust separating device 13 is as follows: air enters the housing 2 from the housing air inlet 23, the air directly enters the separation cone through the air inlet channel 35, and the air coming out of the upper end cavity of the separation cone is discharged through the housing cover air outlet 60.
In the second embodiment, the mounting structure of the cyclone separating body 3, as shown in fig. 3 and 4, the gas-dust separating device 13 further comprises the shell top cover 6 detachably covering and sealing the shell 2, and a shell cover air outlet 60 in the shell top cover 6; the middle barrel body 5 is further included, and at least part of the cyclone separation body 3 extends into the middle barrel body 5; the barrel is characterized by further comprising a barrel top cover 4, wherein the barrel top cover 4 covers and seals the barrel opening of the middle barrel body 5.
The gas-dust separating device 13 further includes a middle barrel body 5 disposed in the housing cavity, the top end of the middle barrel body 5 includes a barrel opening, the barrel side wall of the middle barrel body 5 includes an upper wall 51 with a larger upper diameter and a lower wall 52 with a smaller diameter, the lower wall 52 is in smooth transition connection with the upper wall 51 through a tapered wall, wherein a metal screen is disposed on the upper wall 51, a plurality of micropores are formed on the metal screen, and the plurality of micropores are integrated to form a barrel air inlet 54, as shown in fig. 3, a part of micropores, and the mesh number of the micropores is adjusted according to different use environments in another embodiment, the metal screen may also be disposed on the tapered wall in smooth transition connection between the lower wall 52 and the upper wall 51, or both the tapered wall and the upper wall 51 are disposed with metal screens.
A circle of first skirt edge 53 extending outwards in the radial direction is further arranged on the upper wall 51 above the barrel air inlet 54, a step matched with the first skirt edge 53 is arranged on the shell side wall 21, and the first skirt edge 53 is lapped on the step to form sealing isolation so as to axially divide the shell cavity into an upper cavity and a lower cavity. In a further embodiment, a sealing ring can be arranged at the overlapping part between the first skirt 53 and the step so as to improve the isolation between the upper and lower chambers. In another embodiment, as shown in fig. 3 and 4, a second skirt may be further disposed above the first skirt 53, and an annular sealing groove is formed between the first skirt 53 and the second skirt, and a sealing ring is disposed in the sealing groove, so that the airtightness of the connection between the middle barrel 5 and the shell side wall 21 is improved by the sealing ring. The lower end of the lower wall 52 of the middle barrel body 5 is connected to the shell bottom cover 22, so that the lower port of the lower wall 52 is closed by the shell bottom cover 22, air in the shell cavity cannot enter the middle barrel body 5 through the lower port of the lower wall 52, then a peripheral separation cavity is formed between the barrel side wall of the middle barrel body 5 and the shell 2, and wind entering the shell cavity from the wind inlet 23 firstly enters the peripheral separation cavity and then enters the middle barrel body 5 through the barrel wind inlet 54.
When the wind entering the housing chamber from the wind inlet 23 passes the tub wind inlet 54, large particles of dust and silk are intercepted by the tub wind inlet 54 and fall to the bottom of the peripheral separation chamber. Further, as shown in fig. 4, an air guiding slope 55 is disposed on an outer side of the barrel side wall of the middle barrel body 5, the air guiding slope 55 faces the shell air inlet 23, and the air guiding slope is used for guiding the air entering the housing 2 from the shell air inlet 23 to flow in the same direction in a rotating manner.
As shown in fig. 5 and 8, the air inlet passage 35 includes a passage side wall, a passage bottom wall and a passage top wall, wherein the passage side wall, the passage bottom wall are disposed at the top end of the cyclone separating body 3 and connect the passage side wall with the side wall of the separating cone, and the passage top wall is disposed on the tub top cover 4, and when the tub top cover 4 is closed to the tub opening of the middle tub 5, the tub top cover 4 and the top end of the cyclone separating body 3 are fitted up and down to form the air inlet passage 35, thereby simplifying the manufacturing mold structure; wherein a sealing gasket 8 can be arranged between the top cover 4 and the top end of the cyclone separating body 3, the sealing gasket 8 allows the air in the middle barrel body 5 to enter the air inlet channel 35 only, and also allows the air in the cavity at the upper end of the separating cone to be exhausted from the exhaust pipe 41 on the top cover 4 only. The air thus entering from the inlet opening 33 rotates in the upper cavity of the separation cone, and dust particles in the air slide down the conical wall 31 due to centrifugal action and fall from the dust outlet 34 to below the separation cone.
In order to make the wind entering from the tub wind inlet 54 smoothly flow to the air inlet end of the air inlet channel 35, as shown in fig. 4 and 5, the cyclone separating body 3 further includes a separating wall with a downward opening, the separating wall includes a separating side wall 36 and a separating top wall 37, the separating side wall 36 and the conical wall of the middle tub body 5 are connected to form a middle separating chamber, and one end of the dust outlet 34 of the peripheral separating cone 3a and the middle separating cone 3b extends into the middle separating chamber. Meanwhile, the outer diameter of the separation side wall 36 is smaller than the upper wall 51 of the middle barrel body 5, and a middle air passing passage is formed between the separation side wall 36 and the upper wall 51, so that the wind entering from the barrel air inlet 54 can flow to the air inlet end of the air inlet passage 35 along the middle air passing passage.
The path of the air of the second assembly structure through the gas-dust separating device 13 is as follows: air enters the shell 2 from the shell air inlet 23, air enters the middle barrel body 5 through the barrel air inlet 54 on the middle barrel body 5, the air in the middle barrel body 5 enters the separation cone body through the air inlet channel 35 in a rotating mode, and the air coming out of the cavity at the upper end of the separation cone body enters the shell cover air outlet 60 through the shell cover air outlet 40 and is discharged. The air-dust separating device 13 filters dust in air as follows: large particles of dust and silk threads are intercepted and concentrated to the bottom of the peripheral separation chamber when passing through the barrel air inlet 54, fine dust falls into the middle separation chamber from the dust exhaust port 34 after passing through the centrifugal rotation in the separation cone, and fine dust and suspended particles are intercepted or adsorbed by the air filter screen 7.
Further, after the air is subjected to air-dust separation in the cavity of the cyclone separation body 3, in order to guide the purified air to flow out, as shown in fig. 3, 4 and 8, the air-dust separation device 13 further includes a barrel top cover 4 detachably covering the barrel opening, a barrel cover air outlet 40 is arranged on the barrel top cover 4, the upper end of the cyclone separation body 3 is combined with the lower surface of the barrel top cover 4, and the cavity at the upper end of the separation cone is communicated with the barrel cover air outlet 40. The drum cover air outlet 40 comprises a peripheral drum cover air outlet 40a and a middle drum cover air outlet 40b, which are matched with the separation cone. Many exhaust pipes 41 have still been arranged along the axial on the bucket top cap 4, the export of exhaust pipe 41 forms the bung air outlet 40 of bucket top cap, the other end stretches into in the upper end cavity of separation cone, wind can be followed exhaust pipe 41's pipeline upwards passes through bung air outlet 40 is discharged, and is corresponding, the exhaust pipe also includes peripheral exhaust pipe 41a and middle part exhaust pipe 41b equally. The annular gap between the middle exhaust pipe 41b and the middle separation cone 3b forms a middle annular gap 42b, the annular gap between the peripheral exhaust pipe 41a and the peripheral separation cone 3a forms a peripheral annular gap 42a, and the maximum cross-sectional area of the middle annular gap 42b is larger than that of the peripheral annular gap 42 a. And in order to reduce air leakage at the joint, a sealing gasket 8 can be arranged at the joint between the barrel top cover 4 and the cyclone separation body 3 to enhance the connection sealing performance of the two components.
As shown in fig. 4, the case top cover 6 is disposed above the tub top cover 4, a case cover air outlet 60 is provided at the case top cover 6, and the wind discharged from the tub cover air outlet 40 is discharged through the case cover air outlet 60. In order to further improve the air filtering effect, an air filter screen 7 (for example, HAPE filter screen) is arranged on the circulation path between the barrel cover air outlet 40 and the barrel cover air outlet 60, and by setting the air filter screen 7, fine suspended particles in the air can be further filtered, so that the cleanliness of the discharged air is greatly improved.
In order to facilitate cleaning of dust accumulated in the peripheral separation chamber and the middle separation chamber, a further technical scheme may be that a shell bottom cover 22 is arranged at the lower end of the shell 2 in an overturning manner, the lower end of the middle barrel body 5 is open, and when the shell bottom cover 22 covers the shell 2, the lower end opening of the middle barrel body 5 abuts against the shell bottom cover 22, and the dust and garbage in the middle separation chamber and the peripheral separation chamber can be cleaned simultaneously by arranging the shell bottom cover 22 which can be opened in an overturning manner, so that convenience in dust cleaning is greatly improved.
Claims (10)
1. A cyclone separator comprises a plurality of separation cones which are arranged along the axial direction, wherein cavities are arranged in the separation cones, the top ends of the separation cones comprise cone openings, the upper end parts of the separation cones are provided with cut-in ports, air inlet channels are arranged outside the separation cones, and the cavities at the upper ends of the separation cones are communicated with the air inlet channels through the cut-in ports; the plurality of separation cones comprise a plurality of peripheral separation cones and a middle separation cone arranged among the plurality of peripheral separation cones; the device is characterized in that the maximum rotation radius of the upper end cavity of the middle separation cone is larger than that of the upper end cavity of the peripheral separation cone, and two or more than two cutting inlets are uniformly distributed on the middle separation cone.
2. Cyclonic separating body as claimed in claim 1, wherein each of the entry openings in the intermediate separating cone communicates with a separate inlet passage.
3. Cyclonic separating body as claimed in claim 1, wherein an inlet air passage communicating with the central separating cone is arranged at the side of the peripheral separating cone.
4. Cyclonic separating body as claimed in claim 1, 2 or 3, wherein the upper cavity of the separating cone is cylindrical and the lower cavity of the separating cone is in the form of an inverted cone, the lower end of the separating cone being truncated to form the dust outlet.
5. A gas-dust separating device is characterized by comprising a shell, wherein the top end of the shell comprises a shell opening, the gas-dust separating device further comprises a shell top cover which is detachably covered and sealed to the shell opening, and the cyclone separating body of any one of claims 1 to 4 which is installed in the shell, a shell air inlet is arranged on the shell side wall of the shell, a shell cover air outlet is arranged on the shell top cover, a cone opening of a separating cone is communicated with the shell cover air outlet, air entering the shell from the shell air inlet enters the separating cone through the air inlet channel in a rotating mode, and air coming out of an upper end cavity of the separating cone is discharged through the shell cover air outlet.
6. A gas-dust separating device according to claim 5, further comprising an intermediate barrel body, wherein the top end of the intermediate barrel body comprises a barrel opening and a barrel top cover detachably covering the barrel opening, a barrel wall of the intermediate barrel body is provided with a barrel air inlet integrated by a plurality of micropores, the barrel top cover is provided with a barrel cover air outlet, at least part of the cyclone separating body is arranged in the intermediate barrel body, when the barrel top cover is covered on the barrel opening, not only the cone opening of the separating cone is communicated with the barrel cover air outlet but also the barrel top cover and the cyclone separating body are vertically matched to form the air inlet channel; the air entering the shell from the shell air inlet enters the middle barrel through the barrel air inlet, the air in the middle barrel rotates through the air inlet channel to enter the separation cone, and the air coming out of the cavity at the upper end of the separation cone enters the shell cover air outlet through the barrel cover air outlet and is discharged.
7. A gas-dust separating apparatus according to claim 6, wherein the lower end of the casing is provided with a casing bottom cover in an inverted manner, the lower end of the intermediate tub is open, and the lower end opening of the intermediate tub abuts against the casing bottom cover when the casing bottom cover is closed on the casing.
8. The air-dust separating device of claim 6, wherein an air filter is disposed on the flow path between the air outlet of the barrel cover and the air outlet of the shell cover.
9. The gas-dust separating apparatus of claim 6, wherein an air guiding slope is disposed on an outer side of the tub side wall of the middle tub body, the air guiding slope facing the case air inlet, and the air guiding slope is used for guiding the air entering the case from the case air inlet to flow in the same direction in a rotating manner.
10. A vacuum cleaner comprising the air-dust separating apparatus as claimed in any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111160330.3A CN113827129A (en) | 2021-09-30 | 2021-09-30 | Cyclone separation body, gas-dust separation device and dust collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111160330.3A CN113827129A (en) | 2021-09-30 | 2021-09-30 | Cyclone separation body, gas-dust separation device and dust collector |
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| CN113827129A true CN113827129A (en) | 2021-12-24 |
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| CN202111160330.3A Pending CN113827129A (en) | 2021-09-30 | 2021-09-30 | Cyclone separation body, gas-dust separation device and dust collector |
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Application publication date: 20211224 |