Air guide device and dust removal device

Abstract

The air guiding device comprises a shell and a guiding piece, the shell is provided with an air inlet and an air outlet, the air inlet supplies air in the first direction, the air outlet sucks air in the second direction, the guiding piece is connected with the inner wall of the shell, the guiding piece is located between the air inlet and the air outlet, and the guiding piece is located between the air inlet and the air outlet. The guide piece comprises a guide face, the guide face faces the air inlet, extends in the second direction and projects in the first direction, and the projection area of the guide face is larger than or equal to the projection area of the air inlet. Smoke entering the shell is guided and shunted through the guide face, the smoke resistance in the shell is reduced, the path of the smoke in the shell is reasonably planned, the smoke is prevented from generating cyclone, the smoke flow field in the shell is more uniform, the smoke is prevented from causing reentrainment of dust in the shell, dust enters the middle box body, and the service life of the middle box body is prolonged. The dust removal efficiency of the dust removal device is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of dust removal equipment, and in particular to an air guide device and a dust removal device. Background Art

[0002] Dust removal devices (such as bag dust collectors) are important equipment for collecting smoke and dust, and include a middle box, an air guide device, and dust collecting bags. The dust removal device is located in the negative pressure area. The airflow containing smoke and dust enters the middle box after passing through the air guide device. In the air guide device, large particles of dust in the airflow fall into the dust collecting bags below the air guide device, thereby achieving the purpose of dust removal.

[0003] In related technologies, whether the flue gas in the air guide device can enter the middle box evenly and ensure the flow and pressure balance in the middle box are important factors affecting the dust removal efficiency. The uneven flue gas flow field in the air guide device is likely to cause secondary dust, causing dust to enter the middle box, which will seriously reduce the dust removal efficiency of the dust removal device. Utility Model Content

[0004] This application aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, a first aspect of the present invention provides an air guide device.

[0006] A second aspect of the present invention provides a dust removal device.

[0007] In view of this, according to the first aspect of an embodiment of the present application, an air guide device is proposed, which includes: a shell and a guide member, the shell is provided with an air inlet and an air outlet, the air inlet supplies air along a first direction, and the air outlet sucks air along a second direction, the guide member is connected to the inner wall of the shell, the guide member is located between the air inlet and the air outlet, the guide member includes a guide surface, the guide surface faces the air inlet and extends along the second direction, and is projected along the first direction. The projection area of ​​the guide surface is greater than or equal to the projection area of ​​the air inlet.

[0008] In some technical solutions provided in the present application, optionally, the guide member includes a plurality of sub-guide members, the plurality of sub-guide members are arranged at intervals along the first direction, and the sub-guide surfaces of the plurality of sub-guide members constitute a guide surface.

[0009] In some technical solutions provided in the present application, optionally, along the first direction, the distance between the sub-guide member and the air outlet gradually increases.

[0010] In some technical solutions provided in the present application, optionally, the areas of the multiple sub-guide surfaces gradually increase along the first direction.

[0011] In some technical solutions provided in the present application, optionally, the air guide device also includes: an air inlet duct and a guide member, the air inlet duct is connected to the shell, the air inlet duct is connected to the air inlet, the guide member is arranged in the air inlet duct, the guide member is connected to the air inlet duct, and the extension direction of the guide member is the same as the extension direction of the air inlet duct.

[0012] In some technical solutions provided in the present application, optionally, the air inlet duct includes a turning portion, the extension path of the turning portion is a curve, the guide member is arranged on the turning portion, and the steering angle of the guide member is the same as the steering angle of the steering portion.

[0013] In some technical solutions provided in the present application, optionally, the air-guiding device further includes a support member, the guide member and the shell are respectively connected to the support member, and the support member is located on a side of the guide member away from the air inlet.

[0014] In some technical solutions provided in the present application, optionally, the support member includes: a first support portion and a second support portion, the first support portion is connected to the shell, the first support portion extends along a first direction, the second support portion is connected to the guide member, the second support portion extends in a direction away from the inner wall of the shell, and the first support portion and the second support portion are connected.

[0015] In some technical solutions provided in the present application, optionally, the air guide device further includes an air guide member, the air guide member is connected to the guide surface of the guide member, and the air guide member extends along the first direction.

[0016] The second technical solution of the present application provides a dust removal device, which includes the air guide device provided by any one of the above-mentioned first technical solutions of the present application.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] The guide surface guides and diverts the flue gas entering the shell, thereby reducing the flue gas resistance in the shell, rationally planning the path of the flue gas in the shell, avoiding the generation of flue gas cyclones, making the flue gas flow field in the shell more uniform, and avoiding the flue gas causing secondary dust in the shell and causing dust to enter the middle box, thereby improving the dust removal efficiency of the dust removal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0020] Figure 1 A schematic structural diagram of an air guide device according to an embodiment of the present application;

[0021] Figure 2 A schematic structural diagram of an air guide device according to another embodiment of the present application.

[0022] in, Figure 1 and Figure 2 The corresponding relationship between the reference numerals and component names is as follows:

[0023] 10 air guide device, 100 shell, 110 air inlet, 120 air outlet, 200 guide member, 210 guide surface, 220 sub-guide member, 230 sub-guide surface, 300 air inlet duct, 310 turning part, 400 flow guide member, 500 support member, 510 first support part, 520 second support part, 600 air guide member. DETAILED DESCRIPTION

[0024] In order to better understand the above technical solution, the technical solution of the embodiment of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiment of the present application and the specific features in the embodiment are detailed descriptions of the technical solution of the embodiment of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiment of the present application and the technical features in the embodiment can be combined with each other.

[0025] The first embodiment of the present application provides a wind guide device 10, such as Figure 1 As shown, the air-guiding device 10 includes: a shell 100 and a guide member 200, the shell 100 is provided with an air inlet 110 and an air outlet 120, the air inlet 110 supplies air along a first direction, and the air outlet 120 draws air along a second direction, the guide member 200 is connected to the inner wall of the shell 100, the guide member 200 is located between the air inlet 110 and the air outlet 120, the guide member 200 includes a guide surface 210, the guide surface 210 faces the air inlet 110, and extends along the second direction, and is projected along the first direction, and the projection area of ​​the guide surface 210 is greater than or equal to the projection area of ​​the air inlet 110.

[0026] In this embodiment, an air inlet 110 is provided on the first wall of the housing 100, and an air outlet 120 is provided on the second wall of the housing 100. The air inlet 110 supplies air in a first direction, and the air outlet 120 is in a negative pressure area. The air outlet 120 draws air in a second direction. After the smoke enters the housing 100 through the air inlet 110, it is discharged from the housing 100 through the air outlet 120. Figure 1 In the figure, the arrow at position X points to a first direction, and the arrow at position Y points to a second direction. The first direction may be a horizontal direction, and the second direction may be a vertical direction. The first wall may be a side wall of the housing 100, and the second wall may be a top wall of the housing 100.

[0027] The guide member 200 is located within the housing 100 and connected to the side walls of the housing 100. Specifically, the ends of the guide surface 210 are connected to the inner walls of the housing 100 on opposite sides. The third wall of the housing 100 faces the air inlet 110, and the guide member 200 is located between the third wall and the air inlet 110. The guide member 200 is located between the air inlet 110 and the air outlet 120, positioning the guide member 200 in the flue gas flow path within the housing 100. The guide surface 210 of the guide member 200 faces the air inlet 110, so that after the flue gas enters the housing 100 through the air inlet 110, it first contacts the guide surface 210. The guide surface 210 extends toward the air outlet 120, redirecting the flue gas toward the air outlet 120. Large dust particles in the flue gas strike the guide surface 210 and fall into the dust bag below, preventing dust accumulation on the guide member 200.

[0028] The guide member 200 is arranged opposite to the air inlet 110, and is projected onto the guide surface 210 along the air inlet direction. The projection range of the guide surface 210 covers the projection range of the air inlet 110, so that the projection area of ​​the guide surface 210 is greater than or equal to the projection area of ​​the air inlet 110. The guiding range of the guide surface 210 covers the air inlet range of the shell 100, so that most of the smoke entering the air inlet 110 can contact the guide surface 210, thereby ensuring the guiding effect of the guide member 200 on the smoke.

[0029] The guide surface 210 guides and diverts the flue gas entering the shell 100, thereby reducing the flue gas resistance in the shell 100, rationally planning the path of the flue gas in the shell 100, avoiding the generation of flue gas cyclones, making the flue gas flow field in the shell 100 more uniform, and avoiding the flue gas in the shell 100 causing secondary dust to enter the middle box, thereby improving the dust removal efficiency of the dust removal device.

[0030] In some embodiments provided in this application, Figure 1 As shown, optionally, the guide member 200 includes a plurality of sub-guide members 220 , and the plurality of sub-guide members 220 are spaced apart along the first direction, and the sub-guide surfaces 230 of the plurality of sub-guide members 220 constitute the guide surface 210 .

[0031] In this embodiment, multiple sub-guide members 220 are spaced apart along a first direction on the sidewall of the housing 100, such that the guide surfaces 210 of adjacent sub-guide members 220 form a gap along the air inlet direction, allowing smoke to flow toward the air outlet 120 through this gap. The guide surface 210 is composed of the sub-guide surfaces 230 of the multiple sub-guide members 220. When projected along the first direction, on the plane where any sub-guide surface 230 lies, the combined projected area of ​​the sub-guide surfaces 230 of the multiple sub-guide members 220 is greater than or equal to the projected area of ​​the air inlet 110, ensuring that the guide range formed by the multiple sub-guide members 220 covers the air inlet range.

[0032] The guide member 200 is configured as a plurality of spaced sub-guide members 220, allowing the multiple sub-guide members 220 to guide the flue gas at different locations. After the flue gas flows through the sub-guide members 220, multiple flow paths are formed along the air inlet direction. This improves the uniformity of the flue gas diversion by the guide member 200 and ensures a more uniform distribution of the air volume entering the central chamber. Furthermore, the force exerted by the flue gas on the guide member 200 is distributed across the multiple sub-guide members 220, reducing the impact force on each sub-guide member 220 and improving the stability of the guide member 200.

[0033] For example, the sub-guide member 220 can be made of wear-resistant steel plate, specifically 16Mn. The sub-guide member 220 is welded to the housing 100. The thickness of the sub-guide member 220 along the first direction can be 6 mm, 8 mm, or 10 mm. The sub-guide member 220 can extend along the second direction to 300 mm, 400 mm, or 500 mm. The spacing between adjacent sub-guide members 220 along the first direction is the same, and can be 300 mm, 400 mm, or 500 mm.

[0034] In some embodiments provided in this application, Figure 1 As shown, optionally, along the first direction, the distance between the sub-guide member 220 and the air outlet 120 gradually increases.

[0035] In this embodiment, the distance between the sub-guide member 220 and the air outlet 120 is the distance between the top wall of the sub-guide member 220 and the wall where the air outlet 120 is located. Figure 1 In the figure, H is the distance between the sub-guide member 220 and the air outlet 120. Along the air inlet direction, the distance between the sub-guide member 220 and the air outlet 120 gradually increases, so that a step shape is formed between the sub-guide members 220. It should be noted that since the flue gas is mixed with particles and dust, under the action of gravity, after the flue gas flows in from the air inlet 110, it tilts in the vertical downward direction while flowing along the first direction. Multiple sub-guide members 220 are arranged in a direction away from the air outlet 120 and the air inlet 110 in sequence, so that the arrangement orientation of the guide member 200 is the same as the flow orientation of the flue gas, which increases the contact area between the guide member 200 and the flue gas, and improves the guiding and diversion effect of the guide member 200 on the flue gas.

[0036] For example, the spacing between adjacent sub-guide members 220 along the second direction is the same, and the spacing may be 50 mm, 100 mm or 150 mm.

[0037] In some embodiments provided herein, optionally, areas of the plurality of sub-guide surfaces 230 gradually increase along the first direction.

[0038] In this embodiment, of the two adjacent sub-guide surfaces 230, the sub-guide surface 230 closer to the air inlet 110 has a smaller area. It is understood that the closer to the air inlet 110, the greater the impact force of the smoke on the guide member 200. The areas of the multiple sub-guide surfaces 230 gradually decrease as they approach the air inlet 110, reducing the contact area between the sub-guide members 220 near the air inlet 110 and the smoke. This, in turn, reduces the impact force on the sub-guide members 220 near the air inlet 110, making the impact force more uniform across the multiple sub-guide members 220. Furthermore, this makes the smoke's resistance to guidance and diversion more uniform, improving the uniformity of smoke flow within the housing 100.

[0039] In some embodiments provided in this application, Figure 1 As shown, optionally, the air guide device 10 also includes: an air inlet duct 300 and a guide member 400, the air inlet duct 300 is connected to the shell 100, the air inlet duct 300 is connected to the air inlet 110, the guide member 400 is arranged in the air inlet duct 300, the guide member 400 is connected to the air inlet duct 300, and the extension direction of the guide member 400 is the same as the extension direction of the air inlet duct 300.

[0040] In this embodiment, the air inlet duct 300 is connected to the air inlet 110 of the shell 100, and the flue gas enters the shell 100 through the air inlet duct 300. A guide member 400 is provided inside the air inlet duct 300, and the guide member 400 is connected to the inner wall of the air inlet duct 300. The guide member 400 extends according to the extension direction of the air inlet duct 300, so that the guide member 400 can guide the flue gas in the air inlet duct 300, thereby improving the uniformity of the flue gas in the air inlet duct 300, and the flue gas is diverted before entering the air inlet 110, so that the flue gas entering the shell 100 is more uniform, further improving the uniformity of the flue gas flow field in the shell 100.

[0041] For example, there may be multiple guide members 400, each spaced apart along the cross-section of the air inlet duct 300. The guide members 400 may be wear-resistant steel plates, and specifically, the thickness of the guide members 400 may be 6 mm, 8 mm, or 10 mm. The guide members 400 and the air inlet duct 300 are each connected to a reinforcement member, which may be an angle steel member.

[0042] In some embodiments provided in this application, Figure 1 As shown, optionally, the air inlet duct 300 includes a turning portion 310 , the extension path of the turning portion 310 is a curve, the guide member 400 is provided on the turning portion 310 , and the turning angle of the guide member 400 is the same as the turning angle of the turning portion 310 .

[0043] In this embodiment, the air inlet duct 300 is provided with a turning portion 310 extending along a curve. The air inlet duct 300 converts the flow direction of the flue gas through the turning portion 310. The guide member 400 is connected to the inner wall of the turning portion 310. The turning angle of the guide member 400 is the same as the turning angle of the turning portion 310, so that the extension path of the guide member 400 is the same as the turning portion 310. The flue gas in the air inlet duct 300 is guided and diverted by the turning portion 310 when turning, thereby improving the uniformity of the flue gas when turning, improving the uniformity of the flue gas before entering the shell 100, and further improving the uniformity of the flue gas in the shell 100.

[0044] In some embodiments provided in this application, Figure 2 As shown, optionally, the air guide device 10 further includes a support member 500 , the guide member 200 and the housing 100 are respectively connected to the support member 500 , and the support member 500 is located on a side of the guide member 200 away from the air inlet 110 .

[0045] In this embodiment, the support member 500 is connected to the side of the guide member 200 facing away from the air inlet 110, preventing the support member 500 from affecting the guiding effect of the guide member 200. In addition, the support member 500 is connected to the inner wall of the housing 100, so that when the guide surface 210 comes into contact with the smoke, the support member 500 can provide structural support for the guide member 200, thereby improving the stability and reliability of the guide member 200.

[0046] Exemplarily, the support member 500 is welded to the inner wall of the shell 100, and there are multiple support members 500, which are evenly distributed at the connection position between the guide member 200 and the inner wall of the shell 100, or there is only one support member 500, which extends from the top to the bottom of the guide member 200.

[0047] In some embodiments provided in this application, Figure 2 As shown, optionally, the support member 500 includes: a first support portion 510 and a second support portion 520, the first support portion 510 is connected to the shell 100, the first support portion 510 extends along a first direction, the second support portion 520 is connected to the guide member 200, the second support portion 520 extends in a direction away from the inner wall of the shell 100, and the first support portion 510 and the second support portion 520 are connected.

[0048] In this embodiment, the connected first support portion 510 and second support portion 520 are connected to the housing 100 and the guide member 200, respectively. The first support portion 510 extends in a first direction, enabling the first support portion 510 to provide structural support for the guide member 200 along the air inlet direction. The second support portion 520 extends in a direction away from the inner wall of the housing 100, that is, the second support portion 520 extends toward the center of the housing 100, enabling the second support portion 520 to provide structural support along the length of the guide member 200. The length of the guide member 200, the first direction, and the second direction are mutually perpendicular. The extension of the first support portion 510 and the second support portion 520 increases the connection area between the support member 500 and the housing 100 and the guide member 200, respectively, strengthens the support strength of the support member 500 on the guide member 200, and improves the stability and reliability of the guide member 200.

[0049] For example, the support member 500 may be an angle steel, and the first support portion 510 and the second support portion 520 are respectively two right-angled sides of the angle steel.

[0050] In some embodiments provided in this application, Figure 2 As shown, optionally, the air guide device 10 further includes an air guide member 600 , which is connected to the guide surface 210 of the guide member 200 , and the air guide member 600 extends along the first direction.

[0051] In this embodiment, the air guide member 600 extending along the first direction is connected to the guide surface 210 of the guide member 200, so that the flue gas is first diverted by the air guide member 600 before contacting the guide member 200, thereby improving the uniformity of the flue gas contacting the guide member 200, and further making the flue gas flow field in the shell 100 more uniform.

[0052] A second embodiment of the present application provides a dust removal device, which includes the air guide device 10 provided by any one of the first embodiments of the present application.

[0053] In this embodiment, it should be noted that the dust removal device includes the air guide device 10 provided in any one of the above embodiments of the present application, and thus has all the beneficial technical effects of the above air guide device 10. To avoid repetition, they are not described here.

[0054] Exemplarily, the dust removal device can be a bag dust collector, which also includes a middle box and a dust collecting bag. The dust removal device is located in the negative pressure area, the middle box is connected to the air outlet of the air guide device 10, and the dust collecting bag is connected to the bottom of the air guide device 10. The airflow containing smoke and dust enters the middle box after flowing through the air guide device 10. In the air guide device 10, large particles of dust in the airflow fall into the dust collecting bag below the air guide device 10, thereby achieving dust removal.

[0055] In a specific embodiment, the air guide device 10 is connected to each chamber via an air inlet duct 300. A guide member 400 is provided at the bend of the air inlet duct 300 to ensure that smoke enters the air guide device 10 evenly. A guide member 200 is provided in the upper air inlet 110 area of ​​the housing 100. When smoke enters the housing 100 through the air inlet duct 300, it contacts the guide member 200, changes its direction of movement, and enters the middle box upward. The guide member 200 is arranged in different cross-sections of the housing 100 according to the size of the air inlet duct 300, ensuring that the total length of the guide member 200 covers the air inlet area of ​​the air inlet 110, thereby preventing a small amount of wind from being affected by turbulence and moving in other directions, thereby carrying smoke and dust within the housing 100 for a second time.

[0056] The guide member 200 is reinforced with angle steel, which is welded to the inner wall of the shell 100. To avoid dust accumulation, the angle steel is welded to the leeward side of the guide member 200 and fits the inner wall of the shell 100. The guide member 200 allows the flue gas to enter the middle box evenly, reducing the smoke resistance. The guide member 200 is arranged in the vertical direction to prevent dust accumulation and secondary dust. Each air guide device 10 is provided with an air inlet duct 300, and a guide member 200 is provided inside each shell 100, so that the flue gas can enter the filter bag of each chamber evenly, and the efficiency of the dust collector is significantly improved.

[0057] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0058] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0059] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An air guide device (10), characterized in that: include: A housing (100), the housing (100) being provided with an air inlet (110) and an air outlet (120), the air inlet (110) delivering air in a first direction, and the air outlet (120) sucking air in a second direction; a guide member (200) connected to the inner wall of the housing (100), the guide member (200) being located between the air inlet (110) and the air outlet (120), the guide member (200) comprising a guide surface (210), the guide surface (210) facing the air inlet (110) and extending along the second direction; Projected along the first direction, the projected area of ​​the guide surface (210) is greater than or equal to the projected area of ​​the air inlet (110).

2. The air guide device (10) according to claim 1, characterized in that: The guide member (200) comprises a plurality of sub-guide members (220), wherein the plurality of sub-guide members (220) are spaced apart along a first direction, and the sub-guide surfaces (230) of the plurality of sub-guide members (220) constitute the guide surface (210).

3. The air guide device (10) according to claim 2, characterized in that: Along the first direction, the distance between the sub-guide member (220) and the air outlet (120) gradually increases.

4. The air guide device (10) according to claim 2, characterized in that: Along the first direction, the areas of the plurality of sub-guide surfaces (230) gradually increase.

5. The air guide device (10) according to claim 1, characterized in that: Also includes: An air inlet pipeline (300) is connected to the housing (100), and the air inlet pipeline (300) is in communication with the air inlet (110); The flow guide (400) is arranged in the air inlet pipeline (300), the flow guide (400) is connected to the air inlet pipeline (300), and the extension direction of the flow guide (400) is the same as the extension direction of the air inlet pipeline (300).

6. The air guide device (10) according to claim 5, characterized in that: The air inlet pipeline (300) comprises: A turning portion (310), the extension path of the turning portion (310) is a curve, the flow guide (400) is arranged on the turning portion (310), and the turning angle of the flow guide (400) is the same as the turning angle of the turning portion (310).

7. The air guide device (10) according to any one of claims 1 to 6, characterized in that: Also includes: The support member (500) is connected to the guide member (200) and the housing (100) respectively. The support member (500) is located on a side of the guide member (200) facing away from the air inlet (110).

8. The air guide device (10) according to claim 7, characterized in that: The support member (500) comprises: a first supporting portion (510) connected to the housing (100), wherein the first supporting portion (510) extends along the first direction; The second support portion (520) is connected to the guide member (200), and the second support portion (520) extends in a direction away from the inner wall of the shell (100). The first support portion (510) and the second support portion (520) are connected.

9. The air guide device (10) according to any one of claims 1 to 6, characterized in that: Also includes: An air guide member (600) is connected to the guide surface (210) of the guide member (200), and the air guide member (600) extends along the first direction.

10. A dust removal device, characterized in that: include: The air guiding device (10) according to any one of claims 1 to 9.

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