CN211093775U

CN211093775U - Dust collector and cyclone separation device

Info

Publication number: CN211093775U
Application number: CN201921515670.1U
Authority: CN
Inventors: 颜勇; 黄月林; 李吉; 任敏; 王朝晖; 蔡木城; 李锦坤; 廖泓斌; 王德旭; 陈勇; 陈闪毅
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-07-28
Anticipated expiration: 2029-09-11

Abstract

The utility model relates to a dust catcher and cyclone, cyclone includes: the cyclone separation body is provided with a cyclone separation cavity allowing airflow to spirally rotate around a central axis, and an air inlet, an air outlet and a dust exhaust port which are communicated with the cyclone separation cavity; the collecting piece and the dust collecting piece are respectively arranged at two opposite ends of the cyclone separating body, the collecting piece is provided with a collecting cavity communicated with the exhaust port, and the dust collecting piece is provided with a dust collecting cavity communicated with the dust exhaust port. When the airflow flows in the cyclone separation cavity, one part of the airflow directly spirally descends with dust to enter the dust collection cavity from the dust discharge port, and the other part of the airflow gradually gathers towards the central axis of the cyclone separation cavity in the process of spirally descending and ascends from the center to enter the collecting cavity from the air outlet, so that the air pressure in the collecting cavity is lower than that in the dust collection cavity. The exhaust pipe is communicated with the dust collecting cavity and the flow collecting cavity, so that air flow can flow from the dust collecting cavity to the flow collecting cavity under the action of pressure difference, the dust collecting cavity is automatically exhausted, and the air-dust separation rate can be improved.

Description

Dust collector and cyclone separation device

Technical Field

The utility model relates to a dust absorption technical field especially relates to dust catcher and cyclone.

Background

Along with the improvement of people's standard of living, it is more and more higher to the clean environment on every side, especially in the family is clean, needs carry out thorough cleanness to the inside dirt of house, but can not satisfy indoor cleanliness through traditional mode, and waste time and energy moreover, and the dirt and the filth in the clean room that the dust catcher can be effective and quick satisfy people's requirement. Therefore, it is widely used.

Generally, in a dust collector, air with dust is sucked by a separator to be subjected to air-dust separation, so that the dust enters a dust collecting cavity, and clean air after the dust is separated is discharged from the dust collector to finish dust collection. However, the conventional separator has a poor effect of separating dust from air.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a cyclone separation apparatus which improves the gas-dust separation effect.

Cyclonic separating apparatus comprising:

the cyclone separation body is provided with a cyclone separation cavity allowing airflow to spirally rotate around a central axis, and an air inlet, an air outlet and a dust exhaust port which are communicated with the cyclone separation cavity, wherein the air inlet is positioned at the tangential direction of the periphery of the cyclone separation cavity, and the air outlet and the dust exhaust port are respectively positioned at two opposite axial ends of the cyclone separation cavity;

the collecting piece and the dust collecting piece are respectively arranged at two opposite ends of the cyclone separating body, the collecting piece is provided with a collecting cavity communicated with the exhaust port, and the dust collecting piece is provided with a dust collecting cavity communicated with the dust exhaust port; and

and the air exhaust pipe is connected between the dust collecting piece and the current collecting piece and is communicated with the dust collecting cavity and the current collecting cavity.

In the cyclone separation device, when airflow flows in the cyclone separation cavity, one part of the airflow directly goes downwards with dust in a spiral way and enters the dust collection cavity from the dust discharge port, while the other part of the airflow gradually gathers towards the central axis of the cyclone separation cavity in the spiral downwards going process, goes upwards from the center and then enters the collecting cavity from the air exhaust port, and the airflow which goes downwards in the spiral way and goes upwards from the central axis enters the collecting cavity, so that along-path pressure loss and vortex pressure loss are generated, and the air pressure in the collecting cavity is lower than the air pressure in the dust collection cavity. Therefore, on the basis of the phenomenon, the exhaust pipe is communicated with the dust collecting cavity and the flow collecting cavity, air flow can flow from the dust collecting cavity to the flow collecting cavity under the action of pressure difference, the dust collecting cavity is automatically exhausted, the air-dust separation rate can be improved, an external air exhaust device is not needed, and the structure is simple.

In one embodiment, the air pressure in the dust collecting cavity is greater than the air pressure in the collecting cavity, and an air exhaust flow passage flowing from the dust collecting cavity to the collecting cavity is formed in the air exhaust pipe.

In one embodiment, a first air exhaust opening is formed in one surface of the dust collecting part facing the flow collecting part, a second air exhaust opening is formed in one surface of the flow collecting part facing the dust collecting part, and the air exhaust pipe is connected between the first air exhaust opening and the second air exhaust opening.

In one embodiment, the cyclone body comprises a cylinder body with a cylindrical cavity and a cone body with a conical cavity;

the cone is coaxially connected with the cylinder, the cylindrical cavity is communicated with the conical cavity to form the cyclone separation cavity, and the air inlet is positioned in the tangential direction of the periphery of the cylindrical cavity.

In one embodiment, the dust exhaust port is formed at one end of the conical cavity far away from the cylindrical cavity, the exhaust port is arranged at one side of the cylindrical cavity far away from the conical cavity, and the exhaust port is positioned on the axis of the column body.

In one embodiment, the cyclone separation body further comprises an air exhaust core pipe, and the air exhaust core pipe is arranged at the air exhaust port of the cylinder body, is connected between the cylinder body and the flow collecting piece along the axial extension of the cylinder body, and is communicated with the air exhaust port and the flow collecting cavity.

In one embodiment, the cyclone separating bodies comprise a plurality of cyclone separating bodies, the cyclone separating bodies are connected between the collecting piece and the dust collecting piece, and two opposite ends of each cyclone separating cavity of each cyclone separating body are respectively communicated with the collecting cavity and the dust collecting cavity.

In one embodiment, the plurality of cyclone bodies are arranged at intervals along a circumference, and the exhaust pipe is arranged at the center of the circumference.

In one embodiment, the air extractor further comprises a flow regulating valve, wherein the flow regulating valve is arranged on the air extracting pipe and is used for regulating the flow of air in the air extracting pipe.

In one embodiment, the flow rate of the air flow in the air exhaust pipe is 8% -11% of the air flow rate in the cyclone separation cavity.

The utility model also provides a dust collector, including above-mentioned whirlwind separator.

Drawings

Fig. 1 is a schematic structural view of a cyclone separation apparatus according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the cyclonic separating apparatus shown in FIG. 1;

fig. 3 is a schematic structural diagram of a cyclone separation device according to another embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, in one embodiment of the present invention, a cyclone separation apparatus 100 is provided, which can be assembled in a vacuum cleaner and can separate dust from air when the dust-laden air enters the cyclone separator.

The cyclone separation apparatus 100 includes a cyclone body 10, and the cyclone body 10 has a cyclone chamber 11 for allowing the airflow to spirally rotate around a central axis, and an air inlet 13, an air outlet 15 and a dust outlet 17 all communicating with the cyclone chamber 11. Wherein, the air inlet 13 is positioned at the tangential direction of the periphery of the cyclone separation cavity 11, and the air outlet 15 and the dust exhaust port 17 are respectively positioned at the two opposite axial ends of the cyclone separation cavity 11. The airflow with dust enters the cyclone separation chamber 11 from the air inlet 13 along the tangential direction and then spirally rotates around the central axis towards the dust outlet 17, and during the rotation process, because the dust has heavy weight and the centrifugal force of the rotation is large, the airflow hits the inner wall of the rotary separation chamber and then leaves from the dust outlet 17 under the action of the self-gravity and the downward airflow. Meanwhile, during the downward operation of the spiral, part of the downward airflow gradually moves towards the center of the spiral and is exhausted from the exhaust port 15 along the central axis in an upward mode, so that dust is exhausted from the dust exhaust port 17, and clean air is exhausted from the exhaust port 15 to realize gas-dust separation.

The cyclone separation apparatus 100 further comprises a collecting piece 30, a dust collecting piece 50 and an air exhaust pipe 70, wherein the collecting piece 30 and the dust collecting piece 50 are respectively arranged at two opposite ends of the cyclone separation body 10, the collecting piece 30 is provided with a collecting chamber 32 communicated with the air outlet 15, and clean air with dust separated can enter the collecting chamber 32 from the air outlet 15 when flowing upwards and then is exhausted to the outside; the dust collecting member 50 has a dust collecting chamber 52 communicating with the dust discharge port 17, and dust and a part of the downward air flow can enter the dust collecting chamber 52 from the dust discharge port 17 and be collected in the dust collecting chamber 52.

Furthermore, the inventor researches and discovers that when the airflow flows in the cyclone separation chamber 11, a part of the airflow directly goes downwards with dust in a spiral way and enters the dust collection chamber 52 from the dust discharge port 17, while the other part of the airflow gradually gathers towards the central axis of the cyclone separation chamber 11 in the spiral way and goes upwards from the center and then enters the collecting chamber 32 from the air exhaust port 15, and the airflow which goes downwards in the spiral way and goes upwards from the central axis and enters the collecting chamber 32 has the pressure loss along the way and the vortex pressure loss, so that the air pressure in the collecting chamber 32 is lower than the air pressure in the dust collection chamber 52. Therefore, based on this phenomenon, the air exhaust pipe 70 is connected between the dust collecting member 50 and the collecting member 30, and communicates the dust collecting chamber 52 and the collecting chamber 32, and the air flow flows from the dust collecting chamber 52 to the collecting chamber 32 under the action of the pressure difference, so that the dust collecting chamber 52 is automatically exhausted, the air-dust separation rate can be improved, and an external air exhaust device is not required, and the structure is simple.

Specifically, an air extraction flow passage is formed in the air extraction pipe 70, which flows from the dust collection chamber 52 to the manifold 32, so that part of the air flow in the dust collection chamber 52 flows to the manifold 32 under the action of pressure difference, the air in the dust collection chamber 52 is automatically extracted, and the air-dust separation rate in the dust collection chamber 52 is improved.

Further, the air flow in the air exhaust pipe 70 is 8% -11% of the air flow in the cyclone separation chamber 11. When the air flow in the air exhaust pipe 70 is too small and the air exhaust rate is too small, the improvement of the air-dust separation effect is small, and when the air flow in the air exhaust pipe 70 is too large and the air exhaust rate is too large, the air-dust separation effect cannot be continuously improved, and disturbance may be generated in the dust collection chamber 52. Alternatively, when the flow rate of the gas in the suction pipe 70 is 10% of the flow rate of the gas in the cyclone chamber 11, the gas-dust separation effect is the best.

In some embodiments, the cyclonic separating apparatus 100 further comprises a flow regulating valve (not shown) disposed on the extraction duct 70 for regulating the flow rate of the gas in the extraction duct 70 so as to regulate the flow rate of the gas in the extraction duct 70 to a suitable range. It is understood that the wind resistance at both ends of the air exhaust pipe 70 can also be controlled by changing the pipe diameter, length and coiling manner of the air exhaust pipe 70, so as to match the air exhaust pipe 70 with the proper air flow rate.

As shown in fig. 2, the cyclone separator 10 includes a cylinder 12 having a cylindrical cavity and a cone 14 having a conical cavity, the cone 14 and the cylinder 12 are coaxially connected, the cylindrical cavity and the conical cavity are communicated with each other to form a cyclone separation cavity 11, the air inlet 13 is located at the tangential direction of the periphery of the cylindrical cavity, one end of the conical cavity far away from the cylindrical cavity forms a dust outlet 17, one side of the cylindrical cavity far away from the conical cavity is formed with an air outlet 15, and the air outlet 15 is located on the axis of the cylinder 12. Thus, the airflow enters the cylindrical cavity from the tangential direction of the cylinder and then spirally goes downward to pass through the cylindrical cavity and the conical cavity, and the diameter of the conical cavity is gradually reduced in the direction of the exhaust port 15 pointing to the dust exhaust port 17, so that the dust is gradually gathered and exhausted towards the dust exhaust port 17. At the same time, the part of the airflow which descends in the spiral gradually gathers towards the central axis of the cyclone chamber 11 and goes upwards to the cylindrical chamber, and then is discharged from the exhaust port 15 which is positioned on the axis of the cylindrical body.

The cyclone body 10 further comprises an air extraction core tube 16, the air extraction core tube 16 is arranged at the air outlet 15 of the cylinder body 12, is connected between the cylinder body 12 and the collecting piece 30 along the axial extension of the cylinder body 12, and is communicated with the air outlet 15 and the collecting cavity 32, and the air flow gathered at the central axis of the cylinder body is guided to flow to the collecting cavity 32 by the air extraction core tube 16, so that the clean air without dust is discharged out of the cyclone body 11 from the air extraction core tube 16.

The dust collecting part 50 and the current collecting part 30 are respectively arranged at two ends of the spiral separating part corresponding to the dust discharging port 17 and the air discharging port 15. Furthermore, a first air suction opening 54 is opened on one surface of the dust collecting piece 50 facing the collecting piece 30, a second air suction opening 34 is opened on one surface of the collecting piece 30 facing the dust collecting piece 50, and an air suction pipe 70 is connected between the first air suction opening 54 and the second air suction opening 34, so that part of the air flow in the dust collecting cavity 52 can flow to the collecting cavity 32 by the air suction pipe 70 under the action of pressure difference. Moreover, one surface of the dust collecting piece 50 facing the collecting piece 30 is the top of the dust collecting piece 50, and the top of the dust collecting piece 50 is provided with a first air extraction opening 54, so that the first air extraction opening 54 avoids the bottom of the dust collecting piece 50 for accumulating dust, thereby preventing the air flow from disturbing the dust at the bottom of the dust collecting cavity 52 during air extraction, avoiding bringing up dust during air extraction and ensuring that the air extraction does not influence the dust deposition.

As shown in fig. 3, in some embodiments, the cyclone bodies 10 include a plurality of cyclone bodies 10, a plurality of cyclone bodies 10 are connected between the collecting member 30 and the dust collecting member 50, and opposite ends of each cyclone chamber 11 of each cyclone body 10 are respectively communicated with the collecting chamber 32 and the dust collecting chamber 52. It can be understood that the plurality of cyclone bodies 10 are connected in parallel between the collecting chamber 32 and the dust collecting chamber 52, the dust discharge ports 17 of the plurality of cyclone bodies 10 are all communicated with the dust collecting chamber 52, the exhaust ports 15 of the plurality of cyclone chambers 11 are all communicated with the collecting chamber 32, and the plurality of cyclone bodies 10 are connected in parallel between the dust collecting piece 50 and the collecting piece 30, so that the plurality of cyclone bodies 10 perform gas-dust separation work, and the separation efficiency is improved. Moreover, only one air exhaust pipe 70 is needed to make the air flow in the dust collecting chamber 52 flow to the collecting chamber 32 under the action of pressure difference, thereby improving the air-dust separating effect of the plurality of cyclone bodies 10 communicated with the dust collecting chamber 52.

Optionally, the plurality of cyclone separators 10 are arranged at intervals along a circumference, and the air exhaust pipe 70 is disposed at the center of the circumference, so that the air exhaust pipe 70 can uniformly exhaust air from the plurality of cyclone separators 10, and the plurality of cyclone separators 10 can improve the air-dust separation effect. It is understood that, in other embodiments, the plurality of cyclone separators 10 may be arranged in other shapes, the arrangement position and number of the suction pipes 70 may be adaptively adjusted, and the air-dust separation effect of the plurality of cyclone separators 10 may be improved through the suction pipes 70.

In an embodiment of the present invention, a vacuum cleaner is further provided, which includes the cyclone separation apparatus 100, and has a better air-dust separation effect.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Cyclonic separating apparatus, comprising:

the cyclone separation body (10) is provided with a cyclone separation cavity (11) allowing airflow to spirally rotate around a central axis, and an air inlet (13), an air outlet (15) and a dust exhaust port (17) which are communicated with the cyclone separation cavity (11), wherein the air inlet (13) is positioned on the tangential direction of the periphery of the cyclone separation cavity (11), and the air outlet (15) and the dust exhaust port (17) are respectively positioned at two opposite ends of the cyclone separation cavity (11) in the axial direction;

the collecting piece (30) and the dust collecting piece (50) are respectively arranged at two opposite ends of the cyclone separation body (10), the collecting piece (30) is provided with a collecting cavity (32) communicated with the exhaust port (15), and the dust collecting piece (50) is provided with a dust collecting cavity (52) communicated with the dust exhaust port (17); and

and the air exhaust pipe (70) is connected between the dust collecting piece (50) and the current collecting piece (30) and is communicated with the dust collecting cavity (52) and the current collecting cavity (32).

2. Cyclonic separating apparatus as claimed in claim 1, wherein the air pressure in the dirt collecting chamber (52) is greater than the air pressure in the manifold (32), and the extraction duct (70) defines an extraction flow path from the dirt collecting chamber (52) to the manifold (32).

3. The cyclone separation device as claimed in claim 1, wherein a first suction opening (54) is formed in a surface of the dust collecting member (50) facing the collecting member (30), a second suction opening (34) is formed in a surface of the collecting member (30) facing the dust collecting member (50), and the suction pipe (70) is connected between the first suction opening (54) and the second suction opening (34).

4. Cyclonic separating apparatus as claimed in claim 1, wherein the cyclone body (10) comprises a cylindrical body (12) having a cylindrical chamber and a conical body (14) having a conical chamber;

the cone (14) is coaxially connected with the barrel (12), the cylindrical cavity is communicated with the conical cavity to form the cyclone separation cavity (11), and the air inlet (13) is positioned in the tangential direction of the periphery of the cylindrical cavity.

5. Cyclonic separating apparatus as claimed in claim 4, wherein the end of the conical chamber remote from the cylindrical chamber forms the dust outlet (17), the side of the cylindrical chamber remote from the conical chamber forms the exhaust outlet (15), and the exhaust outlet (15) is located on the axis of the drum (12).

6. The cyclone separation device according to claim 5, wherein the cyclone body (10) further comprises a suction core tube (16), the suction core tube (16) is arranged at the exhaust port (15) of the cylinder body (12) and connected between the cylinder body (12) and the collecting piece (30) along the axial extension of the cylinder body (12) and communicated with the exhaust port (15) and the collecting cavity (32).

7. The cyclone separation device as claimed in claim 1, wherein the cyclone bodies (10) comprise a plurality of cyclone bodies (10), the plurality of cyclone bodies (10) are connected between the collecting member (30) and the dust collecting member (50), and opposite ends of each cyclone chamber (11) of each cyclone body (10) are respectively communicated with the collecting chamber (32) and the dust collecting chamber (52).

8. Cyclonic separating apparatus as claimed in claim 7, wherein the plurality of cyclone bodies (10) are arranged at intervals along a circumference, the extraction duct (70) being provided at the centre of the circumference.

9. Cyclonic separating apparatus as claimed in any one of claims 1 to 8, further comprising a flow regulating valve provided on the extraction duct (70) for regulating the flow of air within the extraction duct (70).

10. Cyclonic separating apparatus as claimed in any one of claims 1 to 8, wherein the flow rate of the gas in the extraction duct (70) is in the range 8% to 11% of the flow rate of the gas in the cyclonic separating chamber (11).

11. A vacuum cleaner, characterised by comprising cyclonic separating apparatus (100) as claimed in any one of claims 1 to 10.