Demister and demisting system

Abstract

The invention discloses a demister and a demisting system. The demister comprises a barrel body, a flow guide assembly and an oil collection assembly, the barrel body comprises an inner cavity, a first end and a second end, the first end and the second end are oppositely arranged, and the first end is an air exhaust end; the flow guide assembly comprises a horn outer shell, a horn inner shell and a plurality of flow guide blades distributed between the horn outer shell and the horn inner shell, the horn outer shell comprises a first small opening and a first large opening, the horn inner shell comprises a second small opening and a second large opening, the first small opening is a mist inlet, the second small opening is closed, and the second large opening is closed. The first large opening is connected with the first end, and a flow guide channel communicated with the inner cavity is formed between every two adjacent flow guide blades; the oil collecting assembly comprises an oil collecting shell with an oil collecting cavity and an oil pipe, the oil collecting cavity is communicated with the inner cavity, and the oil collecting device has the advantages of being good in demisting effect, simple in structure, free of filtering, good in demisting effect, capable of saving cost and capable of improving collecting efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of oil mist treatment equipment, in particular to a demister and a demister system. Background Art

[0002] With the development of industry, parts processing is becoming more and more extensive, and industrial oil mist will be generated during processing. Generally, the industries that produce oil mist are mainly cutting, grinding, heat treatment, etc. In the processing process, the formation mechanism of industrial oil mist can be attributed to two types, atomization and evaporation. Atomization is the process of converting mechanical energy into the surface energy of droplets. When the liquid is sprayed onto the fixed or high-speed rotating parts of the machine tool to form a violent impact, the liquid is broken into small droplets floating in the working environment to form oil mist. Evaporation is the large amount of heat generated during the friction or cutting process when pure oil is sprayed onto the drill bit at high speed, which makes the temperature of the pure oil significantly higher than the saturation temperature, and boiling occurs on the contact surface and steam is generated. These vapors then condense with small droplets or other particles in the surrounding air as the core to form oil mist.

[0003] The oil mist generated during the processing will pollute the working environment and cause certain harm to human body and equipment. Therefore, it is necessary to collect the oil mist. The existing oil mist collection device usually generates negative pressure by the rotation of the motor, and sets up multiple layers of filters for filtering and then collecting. Due to the high concentration of oil mist, the filter needs to be replaced frequently, which is costly. Summary of the invention

[0004] The object of the present invention is to provide a demister and a demister system.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a demister, comprising:

[0006] The barrel body comprises an inner cavity, and a first end and a second end arranged opposite to each other, wherein the first end is a suction end;

[0007] A flow guide assembly, comprising a speaker housing, a speaker inner housing, and a plurality of flow guide blades distributed between the speaker housing and the speaker inner housing, wherein the speaker housing comprises a first small opening and a first large opening, and the speaker inner housing comprises a second small opening and a second large opening, wherein the first small opening is a mist inlet, the second small opening is closed, the first large opening is connected to the first end, and a flow guide channel communicating with the inner cavity is formed between adjacent flow guide blades;

[0008] The oil collecting assembly comprises an oil collecting shell with an oil collecting cavity and an oil pipe installed on the oil collecting shell, wherein the oil collecting cavity is communicated with the inner cavity.

[0009] As a further improved technical solution of the present invention, a plurality of guide vanes are evenly distributed along the circumference of the horn inner shell and have the same shape.

[0010] As a further improved technical solution of the present invention, the guide vanes are twisted.

[0011] As a further improved technical solution of the present invention, each of the guide vanes has the same twist angle.

[0012] As a further improved technical solution of the present invention, a plurality of guide vanes are fixedly connected to the speaker outer shell and the speaker inner shell.

[0013] As a further improved technical solution of the present invention, a mist inlet pipe is extended from the first small opening, and a cap is covered on the second small opening, and the diameter of the cap is smaller than the diameter of the mist inlet pipe.

[0014] As a further improved technical solution of the present invention, the demister further includes an exhaust assembly, the exhaust assembly includes an end cover covering the first end and an exhaust pipe assembled to the end cover, and the exhaust pipe extends into the inner cavity.

[0015] As a further improved technical solution of the present invention, the exhaust pipe is suspended in the inner cavity and spaced apart from the first large opening. The exhaust pipe is coaxially arranged with the speaker inner shell and the diameter of the exhaust pipe is smaller than the diameter of the first large opening.

[0016] As a further improved technical solution of the present invention, a mist inlet pipe is extended from the first small opening, and the air extraction pipe and the mist inlet pipe are coaxially arranged and have the same diameter.

[0017] In addition, the present invention also provides a defogger system, which includes the defogger as described above, and an air extraction device and a mist storage vacuum device connected to the defogger.

[0018] The beneficial effects of the present invention are as follows: the demister of the present invention has better demister effect, simple structure, no need for filtering, better demister effect, cost saving and improved collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the demister of the present invention;

[0020] Figure 2 yes Figure 1 Schematic diagram of some structures;

[0021] Figure 3 yes Figure 2 A schematic diagram of a part of the structure from another angle;

[0022] Figure 4 yes Figure 1 Schematic diagram of partial structural decomposition;

[0023] Figure 5 It is another perspective structural schematic diagram of the demister of the present invention;

[0024] Figure 6 yes Figure 5 Schematic diagram of some structures;

[0025] Figure 7 yes Figure 5 Schematic diagram of partial structural decomposition. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below in conjunction with the various embodiments shown in the accompanying drawings. Please refer to the drawings for preferred embodiments of the present invention. However, it should be noted that these embodiments are not limitations of the present invention, and equivalent changes or substitutions in functions, methods, or structures made by ordinary technicians in the field according to these embodiments are all within the protection scope of the present invention.

[0027] Please refer to Figures 1 to 7 The present invention discloses a demister 100, which includes a barrel 1, a flow guide component 2, an oil collecting component 3 and an air extraction component 4.

[0028] The barrel body 1 is in the shape of a cylinder, and includes an inner cavity 11 formed by a surrounding structure and a first end 12 and a second end 13 arranged opposite to each other, wherein the first end 12 is an air extraction end. The first end 12 is provided with a first fastening ring 121, and the second end 13 is provided with a second fastening ring 131.

[0029] The guide assembly 2 is horn-shaped as a whole, and has the characteristics of one end having a small diameter and the other end having a large diameter. The end of the guide assembly 2 with a large diameter is fixed to the second end 13 of the barrel body 1. The guide assembly 2 includes a horn outer shell 21, a horn inner shell 22, and a plurality of guide blades 23. The horn outer shell 21 is horn-shaped, the horn inner shell 22 is horn-shaped, the horn inner shell 22 is located in the horn outer shell 21 and is coaxially arranged, the horn outer shell 21 and the horn inner shell 22 are arranged at intervals and a horn-shaped annular space is formed therebetween. A plurality of guide blades 23 are distributed in the horn-shaped annular space between the horn outer shell 21 and the horn inner shell 22. A plurality of guide blades 23 are fixed on the outer side wall 221 of the horn inner shell 22, and a plurality of guide blades 23 contact or are fixed to the inner side wall 211 of the horn outer shell 21. In other embodiments, a plurality of guide blades 23 are fixed to the outer wall 221 and spaced apart from the inner wall 211 , or a plurality of guide blades 23 are fixed to the inner wall 211 and spaced apart from the outer wall 221 , or a plurality of guide blades 23 are partially fixed to the inner wall 211 and partially fixed to the outer wall 221 .

[0030] The speaker housing 21 includes a first small opening 212 and a first large opening 213 at both ends according to the size of the speaker shape. The speaker inner housing 22 includes a second small opening 222 and a second large opening 223 at both ends according to the size of the speaker shape. The first small opening 212 is a mist inlet, the second small opening 222 is closed, and the first large opening 213 is connected to the first end 12. In this embodiment, the first large opening 213 is fixed to the first fastening ring 121. A guide channel 231 connected to the inner cavity 11 is formed between adjacent guide blades 23.

[0031] Specifically, a plurality of guide vanes 23 are evenly distributed along the circumference of the outer side wall 221 of the speaker inner shell 22 and have the same shape. The guide vanes 23 are twisted, and each guide vane 23 has the same twist angle. The guide vane 23 twists and extends from the second small opening 222 to the second large opening 223, and a plurality of guide vanes 23 are twisted clockwise or counterclockwise at the same angle. The guide vane 23 includes a first side surface 232 and a second side surface 233 that are arranged opposite to each other, and the first side surface 232 and the second side surface 233 are asymmetrically arranged due to the twisting of the guide vane 23. The guide vane 23 also includes a first chord line 234 that contacts the speaker inner shell 22 and a second chord line 235 that contacts the speaker outer shell 21, and the first chord line 234 and the second chord line 235 have different trajectories.

[0032] In this embodiment, a plurality of guide vanes 23 are fixedly connected to the speaker housing 21 and the speaker inner housing 22, and the guide vanes 23 are fixedly arranged and do not need to rotate during use. In other embodiments, the guide vanes 23 are fixed to the speaker inner housing 22 and are spaced apart from the speaker housing 21, and the guide vanes 23 can rotate during use: the speaker inner housing 22 can be movably arranged, and the guide vanes 23 can rotate naturally due to airflow; or they can be driven to rotate by setting a driving device, and the speed and direction can be controlled.

[0033] The first small opening 212 is extended with a mist inlet pipe 214, and the second small opening 222 is covered with a hemispherical cap 224, the diameter of the cap 224 is smaller than the diameter of the mist inlet pipe 214, after the mist enters from the mist inlet pipe 214, part of it directly enters the guide channel 231, and part of it is dispersed by the cap 224, and the mist is dispersed into each guide channel 231. In other embodiments, the cap 224 is a part of a sphere, which can be larger or smaller than a hemisphere, or the cap 224 is other curved surface shapes. The cap 224 closes the second small opening 222 and guides and disperses the mist.

[0034] The oil collecting assembly 3 includes an oil collecting housing 31 having an oil collecting chamber 311 and an oil pipe 32 installed in the oil collecting housing 31. The oil collecting housing 31 is in a cubic shape and is located below the body 1, and the oil collecting chamber 311 is connected to the inner chamber 11. The bottom plate 312 of the oil collecting housing 31 is provided with an oil collecting port 313, and the oil collecting port 313 is installed with an oil pipe 32, and the oil pipe 32 is connected to an external oil tank (not shown) or other equipment.

[0035] The exhaust assembly 4 includes an end cover 41 covering the first end 12 and an exhaust pipe 42 assembled on the end cover 41. The end cover 41 is buckled on the first fastening ring 121. The exhaust pipe 42 extends into the inner cavity 11. The exhaust pipe 42 is suspended in the inner cavity 11 and is spaced apart from the first large opening 213. The exhaust pipe 42 is coaxially arranged with the inner shell 22 of the horn and the diameter of the exhaust pipe 42 is smaller than the diameter of the first large opening 213. The other end of the exhaust pipe 42 protrudes out of the barrel body 1 and can be connected to an exhaust device (not shown) and the like, and air is sucked through the exhaust pipe 42 to absorb the mist. The exhaust pipe 42 and the mist inlet pipe 214 are coaxially arranged and have the same diameter. Therefore, the exhaust pipe 42 is not directly opposite to the mist inlet pipe 214 on the axis and will not directly absorb the mist. The distance between the exhaust pipe 42 and the second large opening 223 is less than 1 / 4 and greater than 1 / 6 of the distance between the first end 12 and the second end 13 to achieve a better demisting effect.

[0036] The working principle of the demister 100 of the present invention is as follows: when working, the exhaust pipe 42 is connected to an exhaust device. After ventilation, the oil mist of the connected machines and other equipment is sucked into the mist inlet pipe 214, and the oil mist first enters the mist inlet pipe 214, part of the oil mist directly enters the guide channel 231, and part of the oil mist hits the cap 224 and is dispersed into the guide channel 231. Under the action of the speaker housing 21, the speaker inner housing 22 and the guide blades 23, the oil in the oil mist is deposited and adheres to the inner wall 211, the outer wall 221, the first side 232 and the second side 233, and after being collected to form oil droplets, it flows to the oil collecting chamber 311 by its own gravity and airflow, and enters the oil pipe 32 through the bottom plate 312 for collection.

[0037] The exhaust pipe 42 of the defogger 100 of the present invention extends and is suspended in the inner cavity 11. The exhaust pipe 42 is spaced apart from the trumpet inner shell 22 and the aperture of the exhaust pipe 42 is smaller than the aperture of the second largest opening 223 of the trumpet inner shell 22. The exhaust pipe 42 is coaxially arranged with the mist inlet pipe 214. Therefore, the exhaust pipe 42 does not directly deal with the oil mist. After the oil mist enters, it is diffused through the trumpet-shaped trumpet inner shell 22 and the oil in the oil mist is deposited under the action of the guide vane 23. Even if it is not completely deposited, a small amount of oil-containing oil mist is sucked into the inner cavity 11 and continues to be deposited in the inner cavity 11. The mist except the oil is sucked away by the exhaust pipe 42 adjacent to the second largest opening 223, thereby achieving a better defog effect, a simple structure, no filtering, a better defog effect, cost saving, and improved collection efficiency. Through the trumpet-shaped distribution and twisting setting of the guide vane 23, the oil in the oil mist is effectively deposited, saving costs and improving efficiency. The demister 100 can achieve the collection effect without installing a driving device to drive the guide vanes 23 .

[0038] The present invention also discloses a demisting system, which includes the above-mentioned demisting device 100, and also includes an air extraction device and a mist storage vacuum device (not shown) connected to the demisting device. The air extraction device is connected to the air extraction pipe 32, and the demisting vacuum device is connected to the mist inlet pipe 214. The demisting system can achieve the effect of removing oil mist and collecting liquid oil without filtering equipment, has a simple structure, a better demisting effect, saves costs, and improves collection efficiency. Through the trumpet-shaped distribution and twisting setting of the guide vane 23, the oil in the oil mist is effectively deposited, saving costs.

[0039] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0040] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A demister, characterized in that: It includes: The barrel body comprises an inner cavity, and a first end and a second end arranged opposite to each other, wherein the first end is a suction end; A flow guide assembly, comprising a speaker housing, a speaker inner housing, and a plurality of flow guide blades distributed between the speaker housing and the speaker inner housing, wherein the speaker housing comprises a first small opening and a first large opening, and the speaker inner housing comprises a second small opening and a second large opening, wherein the first small opening is a mist inlet, the second small opening is closed, the first large opening is connected to the first end, and a flow guide channel communicating with the inner cavity is formed between adjacent flow guide blades; The oil collecting assembly comprises an oil collecting shell with an oil collecting cavity and an oil pipe installed on the oil collecting shell, wherein the oil collecting cavity is communicated with the inner cavity.

2. The demister according to claim 1, characterized in that: The plurality of guide vanes are evenly distributed along the circumference of the horn inner shell and have the same shape.

3. The demister according to claim 1, characterized in that: The guide vanes are twisted.

4. The demister according to claim 3, characterized in that: The guide blades have the same twist angle.

5. The demister according to claim 1, characterized in that: A plurality of guide vanes are fixedly connected to the speaker outer shell and the speaker inner shell.

6. The demister according to claim 1, characterized in that: The first small opening is extended with a mist inlet pipe, and the second small opening is covered with a cap, and the diameter of the cap is smaller than the diameter of the mist inlet pipe.

7. The demister according to claim 1, characterized in that: The demister further comprises an air extraction assembly, wherein the air extraction assembly comprises an end cover covering the first end and an air extraction pipe assembled on the end cover, wherein the air extraction pipe extends into the inner cavity.

8. The demister according to claim 7, characterized in that: The air extraction pipe is suspended in the inner cavity and spaced apart from the first large opening. The air extraction pipe is coaxially arranged with the speaker inner shell and the diameter of the air extraction pipe is smaller than the diameter of the first large opening.

9. The demister according to claim 8, characterized in that: A mist inlet pipe is extended from the first small opening, and the air extraction pipe and the mist inlet pipe are coaxially arranged and have the same diameter.

10. A demisting system, characterized in that: The invention comprises a demister as claimed in any one of claims 1 to 9, and an air extraction device and a mist storage vacuum device connected to the demister.

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