Turbulence-preventing dust exhaust device

Abstract

The invention belongs to the technical field of dust exhaust equipment, particularly relates to an anti-turbulent-flow dust exhaust device, and provides the following scheme aiming at the problem that the turbulent flow phenomenon can occur due to the fact that existing dust flow guide exhaust pipes are directly connected to the exhaust device for centralized emission: the anti-turbulent-flow dust exhaust device comprises a bottom air inlet fan box, an isolation net cover is fixed to the circumferential position of the top of the bottom air inlet fan box, an external fixing pipe is fixed to the top of the isolation net cover through bolts, and a vertical air inlet air pipe is fixed to the middle position of the top of the bottom air inlet fan box. High-speed upward air flow in the middle exhaust pipe forms negative pressure at the position of the side air guide pipe, dust gas sucked through the first branch exhaust pipe, the second branch exhaust pipe and the third branch exhaust pipe enters a branch exhaust pipe guide cavity and is sucked into the middle exhaust pipe to be exhausted through the negative pressure effect, three auxiliary exhaust fans located at the bottom blow air upwards, and the dust gas is exhausted through the side air guide pipe. And residual dust gas in the guide cavity of the branch exhaust pipe is discharged to the top.

Description

Technical Field

[0001] The invention relates to the technical field of dust exhaust equipment, and in particular to an anti-turbulence dust exhaust device. Background Art

[0002] During the manufacturing process in the factory workshop, due to the special working environment and the special processed products, the equipment will generate a large amount of dust. At present, multiple (multiple) devices in the dust exhaust equipment factory / workshop currently use independent pipes for discharge, resulting in multiple dust emission outlets on the roof of the factory / workshop, which cannot be collected centrally. Some pipelines in the factory area also use parallel pipes to connect the exhaust gases of multiple dust-emitting equipment to a dust exhaust device for centralized discharge.

[0003] However, the current centralized dust emission devices have the following problems: due to the design problems of the guide exhaust pipe, the equipment exhaust will have turbulence and cross-flow, affecting the operating effect and efficiency of various equipment. The current dust guide exhaust pipe is directly connected to the exhaust device for centralized emission. During emission, the dust gas introduced by each branch exhaust pipe will have turbulence, resulting in poor dust exhaust effect, and even the phenomenon of being unable to exhaust dust. The existing technology is not easy to solve such problems. Therefore, there is an urgent need for an anti-turbulence dust exhaust device to solve the above problems. Summary of the invention

[0004] Based on the technical problem that current dust guide exhaust pipes are directly connected to exhaust devices for centralized discharge, which may cause turbulence, the present invention proposes an anti-turbulence dust exhaust device.

[0005] The present invention proposes an anti-turbulence dust exhaust device, which includes a bottom air intake fan box, an isolation mesh cover is fixed at the top circumferential position of the bottom air intake fan box, an external fixed pipe is fixed to the top of the isolation mesh cover by bolts, a vertical air intake duct is fixed at the top middle position of the bottom air intake fan box, the air intake duct is connected with the interior of the bottom air intake fan box, a vertically arranged central exhaust pipe is fixed on the top of the air intake duct, a support rod is fixed between the circumferential position of the central exhaust pipe and the inner wall of the external fixed pipe, a waterproof top cover is fixed to the top of the external fixed pipe, three exhaust holes are opened on the circumferential outer wall of the external fixed pipe, a first exhaust pipe, a second exhaust pipe and a third exhaust pipe are respectively fixed to the three exhaust holes by bolts, and the first exhaust pipe, the second exhaust pipe and the third exhaust pipe are located on the inner wall of the external fixed pipe and are equipped with branch exhaust adjustment components.

[0006] Preferably, an exhaust pipe regulating block is fixed to the bottom of each of the first exhaust pipe, the second exhaust pipe and the third exhaust pipe, and an exhaust pipe inlet pipe head is fixed to the bottom of the exhaust pipe regulating block by bolts.

[0007] Preferably, a fixed fan plate is fixed to the inner wall of the branch exhaust pipe adjustment block by bolts, an adjusting fan plate is installed at the middle position of the fixed fan plate through a bearing, a first drive motor is fixed inside the fixed fan plate, and the output shaft of the first drive motor is installed with the fixed shaft of the adjusting fan plate.

[0008] Preferably, a vertically distributed side air duct is installed on the circumferential outer wall of the central exhaust pipe, the installation direction of the side air duct is toward the bottom, and the side air duct is a through structure, and the side air duct is connected to the interior of the central exhaust pipe.

[0009] Preferably, the interior of the central exhaust pipe is configured as a penetrating main exhaust guide cavity, and a branch exhaust pipe guide cavity is configured between the central exhaust pipe and the external fixed pipe.

[0010] Preferably, the exhaust and branch adjustment assembly includes a fixed sleeve fixed at the pipe openings of the first exhaust pipe, the second exhaust pipe and the third exhaust pipe, the top of the fixed sleeve is hingedly installed with an exhaust air guide ring, and two electric push rods are hingedly installed between the bottom of the exhaust air guide ring and the fixed sleeve.

[0011] Preferably, a corrugated rubber sleeve is sealedly installed between the exhaust air guide ring and the fixed sleeve.

[0012] Preferably, an axial flow fan is installed inside the bottom air intake fan box, the air outlet position of the axial flow fan is toward the top air intake duct, the axial flow fan takes in air through the bottom air intake box, and a bottom air intake box filter is installed inside the bottom air intake box.

[0013] Preferably, three auxiliary exhaust fans distributed in a circular array are installed on the top of the bottom air intake fan box, and the air outlet positions of the three auxiliary exhaust fans are facing the top.

[0014] Preferably, a fan blade bracket is installed at the bottom of the central exhaust pipe, and a fan blade is installed on the top of the fan blade bracket through a bearing, a vertically arranged cleaning rod is fixed to the middle position of the top of the fan blade, and a fixed brush rod distributed in a vertical array is fixed to the circumferential outer wall of the cleaning rod, and a cleaning soft rubber strip is fixed to the end of the fixed brush rod.

[0015] The beneficial effects of the present invention are:

[0016] 1. In the anti-turbulence dust exhaust device, the high-speed upward airflow in the central exhaust pipe forms a negative pressure at the side air duct position, and the dust gas sucked in through the first exhaust pipe, the second exhaust pipe and the third exhaust pipe enters the branch exhaust pipe guide cavity, and is sucked into the central exhaust pipe through the negative pressure effect and discharged. The three auxiliary exhaust fans at the bottom blow air upward to discharge the remaining dust gas in the branch exhaust pipe guide cavity to the top for discharge. The negative pressure exhaust method of the central exhaust pipe can reduce the effect of the branch exhaust pipe airflow on the exhaust and the turbulence phenomenon.

[0017] 2. In the process of dust exhaust, the anti-turbulence dust exhaust device connects the equipment that needs to be exhausted to the air inlet heads of the first exhaust pipe, the second exhaust pipe and the third exhaust pipe respectively. When the corresponding working equipment needs to be exhausted, the first drive motor in the corresponding exhaust pipe adjustment opens the adjustment fan plate. At this time, the dust generated by the equipment can be discharged into the exhaust pipe guide cavity in the external fixed pipe to realize dust discharge.

[0018] 3. In the process of discharging dust in the first exhaust pipe, the second exhaust pipe and the third exhaust pipe of the anti-turbulence dust exhaust device, due to the different density of dust discharge, the exhaust adjustment component is used to adjust the angle of dust discharge into the branch exhaust pipe guide cavity, and the electric push rod is used to control the angle of the exhaust air guide ring. When the dust density is large, the exhaust air guide ring is adjusted to tilt upward, so that the dust can be discharged to the top more efficiently. When the dust density is small, the exhaust air guide ring is adjusted vertically to discharge more dusty air.

[0019] 4. For the anti-turbulence dust exhaust device, since most of the dust exhaust is sucked into and discharged from the device through the central exhaust pipe, dust adheres to the inner wall of the central exhaust pipe after long-term work. The power of the axial flow fan is increased to make the bottom fan blades rotate accordingly. The greater the power, the faster the cleaning rod rotates. The cleaning soft rubber strips in the circumferential position are thrown up and contact the inner wall of the central exhaust pipe, removing the dust accumulated on the inner wall and discharging it from the device through the top position. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an anti-turbulence dust exhaust device proposed by the present invention;

[0021] Figure 2 A partial cross-sectional schematic diagram of the overall structure of an anti-turbulence dust exhaust device proposed by the present invention;

[0022] Figure 3 A schematic diagram of the structure of a first exhaust pipe of an anti-turbulence dust exhaust device proposed by the present invention;

[0023] Figure 4A schematic diagram of the structure of a branch exhaust adjustment component of an anti-turbulence dust exhaust device proposed by the present invention;

[0024] Figure 5 A schematic diagram of the structure of a centrally-mounted exhaust pipe of a turbulence-proof dust exhaust device proposed by the present invention;

[0025] Figure 6 A turbulence-proof dust exhaust device proposed by the present invention Figure 5 Schematic diagram of the enlarged structure of part A in FIG.

[0026] In the figure: 1. External fixed pipe; 2. Waterproof top cover; 3. First exhaust pipe; 4. Second exhaust pipe; 5. Exhaust pipe adjustment block; 6. Exhaust pipe air inlet head; 7. Third exhaust pipe; 8. Bottom air inlet box; 9. Isolation mesh cover; 10. Bottom air inlet fan box; 11. Bottom air inlet box filter; 12. Intake air duct; 13. Auxiliary exhaust fan; 14. Center exhaust pipe; 15. Side air guide pipe; 16. Exhaust pipe guide cavity; 17. Main exhaust guide cavity; 18. Exhaust adjustment assembly; 19. Fixed fan plate; 20. Adjusting fan plate; 21. Electric push rod; 22. Exhaust air guide ring; 23. Fixed sleeve; 24. Corrugated rubber sleeve; 25. Fan blade; 26. Dust cleaning rotating rod; 27. Fixed brush rod; 28. Dust cleaning soft rubber strip. DETAILED DESCRIPTION

[0027] Reference Figure 1-Figure 6 , a turbulent dust exhaust device comprises a bottom air intake fan box 10, an isolation mesh cover 9 is fixed at the top circumferential position of the bottom air intake fan box 10, an external fixed pipe 1 is fixed to the top of the isolation mesh cover 9 by bolts, a vertical air intake duct 12 is fixed to the middle position of the top of the bottom air intake fan box 10, the air intake duct 12 is connected to the interior of the bottom air intake fan box 10, a vertically arranged central exhaust pipe 14 is fixed to the top of the air intake duct 12, a support rod is fixed between the circumferential position of the central exhaust pipe 14 and the inner wall of the external fixed pipe 1, a waterproof top cover 2 is fixed to the top of the external fixed pipe 1, three exhaust holes are opened on the circumferential outer wall of the external fixed pipe 1, a first branch exhaust pipe 3, a second branch exhaust pipe 4 and a third branch exhaust pipe 7 are respectively fixed to the three exhaust holes by bolts, and the first branch exhaust pipe 3, the second branch exhaust pipe 4 and the third branch exhaust pipe 7 are located on the inner wall of the external fixed pipe 1 and are all installed with branch exhaust adjustment components 18.

[0028] Furthermore, an exhaust pipe regulating block 5 is fixed to the bottom of the first exhaust pipe 3, the second exhaust pipe 4 and the third exhaust pipe 7, and an exhaust pipe inlet pipe head 6 is fixed to the bottom of the exhaust pipe regulating block 5 by bolts.

[0029] Furthermore, a fixed fan plate 19 is fixed to the inner wall of the branch exhaust duct adjusting block 5 by bolts, an adjusting fan plate 20 is installed at the middle position of the fixed fan plate 19 through a bearing, a first drive motor is fixed inside the fixed fan plate 19, and the output shaft of the first drive motor is installed with the fixed shaft of the adjusting fan plate 20; the first drive motor in the branch exhaust duct adjusting block 5 opens the adjusting fan plate 20, and at this time, the dust generated by the equipment can be discharged into the branch exhaust duct guide cavity 16 in the external fixed pipe 1 to realize dust discharge.

[0030] Furthermore, a vertically distributed side air duct 15 is installed on the circumferential outer wall of the central exhaust pipe 14 . The installation direction of the side air duct 15 is toward the bottom, and the side air duct 15 is a through structure, and the side air duct 15 is connected to the interior of the central exhaust pipe 14 .

[0031] Furthermore, the interior of the central exhaust pipe 14 is configured as a penetrating main exhaust guide cavity 17 , and a branch exhaust pipe guide cavity 16 is configured between the central exhaust pipe 14 and the external fixed pipe 1 .

[0032] Furthermore, the exhaust and branch adjustment assembly 18 includes a fixed sleeve 23 fixed at the pipe openings of the first exhaust pipe 3, the second exhaust pipe 4 and the third exhaust pipe 7, and an exhaust air guide ring 22 is hingedly installed on the top of the fixed sleeve 23, and two electric push rods 21 are hingedly installed between the bottom of the exhaust air guide ring 22 and the fixed sleeve 23.

[0033] Furthermore, a corrugated rubber sleeve 24 is sealed between the exhaust air guide ring 22 and the fixed sleeve 23; the angle of dust discharge into the branch exhaust pipe guide cavity 16 is adjusted by the branch exhaust adjustment component 18, and the angle of the exhaust air guide ring 22 is controlled by the electric push rod 21. When the dust density is large, the exhaust air guide ring 22 is adjusted to tilt upward, so that the dust can be discharged to the top more efficiently. When the dust density is small, the exhaust air guide ring 22 is adjusted vertically to guide more dusty air.

[0034] Furthermore, an axial flow fan is installed inside the bottom air intake fan box 10, and the air outlet position of the axial flow fan is toward the top air intake duct 12. The axial flow fan takes in air through the bottom air intake box 8, and a bottom air intake box filter 11 is installed inside the bottom air intake box 8.

[0035] Furthermore, three auxiliary exhaust fans 13 distributed in a circumferential array are installed on the top of the bottom air intake fan box 10, and the air outlet positions of the three auxiliary exhaust fans 13 are facing the top.

[0036] Furthermore, a fan blade bracket is installed at the bottom of the central exhaust pipe 14, and a fan blade 25 is installed on the top of the fan blade bracket through a bearing, a vertically arranged cleaning rod 26 is fixed to the middle position of the top of the fan blade 25, and a fixed brush rod 27 distributed in a vertical array is fixed to the circumferential outer wall of the cleaning rod 26, and a cleaning soft rubber strip 28 is fixed to the end of the fixed brush rod 27; the power of the axial flow fan is increased to make the fan blade 25 at the bottom rotate with it, and the greater the power, the faster the cleaning rod 26 rotates, and the cleaning soft rubber strip 28 at the circumferential position is thrown up and contacts the inner wall of the central exhaust pipe 14, so that the dust accumulated on the inner wall is removed and discharged through the top position discharge device.

[0037] When the present invention is used: after the entire exhaust device is installed and fixed in a suitable position, the bottom air intake box filter element 10 is installed inside the bottom air intake box 8. When the axial flow fan inside the bottom air intake fan box 10 is running, a high-speed airflow is blown into the top air intake duct 12, and the high-speed exhaust gas is discharged to the top along the central exhaust pipe 14 and discharged through the top of the external fixed pipe 1. During the exhaust process, due to the high-speed upward airflow in the central exhaust pipe 14, a negative pressure is formed at the position of the side air guide pipe 15, and the dust gas sucked in through the first branch exhaust pipe 3, the second branch exhaust pipe 4 and the third branch exhaust pipe 7 enters the branch exhaust The dust is sucked into the middle exhaust pipe 14 through the negative pressure effect and discharged. The three auxiliary exhaust fans 13 at the bottom blow air upward to discharge the remaining dust gas in the branch exhaust pipe chamber 16 to the top for discharge. In the process of dust discharge, the equipment that needs to be discharged is respectively connected to the branch exhaust pipe inlet pipe head 6 of the first branch exhaust pipe 3, the second branch exhaust pipe 4 and the third branch exhaust pipe 7. When the corresponding working equipment needs to discharge dust during exhaust, the first drive motor in the corresponding branch exhaust pipe regulating block 5 opens the regulating fan plate 20. At this time, the dust generated by the equipment can be discharged to the external solid Dust is discharged in the branch exhaust pipe guide cavity 16 in the fixed pipe 1; in the process of discharging dust in the first branch exhaust pipe 3, the second branch exhaust pipe 4 and the third branch exhaust pipe 7, due to the different densities of dust discharge, the branch exhaust adjustment component 18 is used to adjust the angle of dust discharge into the branch exhaust pipe guide cavity 16, and the electric push rod 21 is used to control the angle of the exhaust air guide ring 22. When the dust density is large, the exhaust air guide ring 22 is adjusted to tilt upward, so that the dust can be discharged to the top more efficiently. When the dust density is small, the exhaust air guide ring 22 is adjusted vertically to guide more dusty air; During the dust discharge process, the side air duct 15 sucks in and discharges the dust discharged from the first exhaust pipe 3, the second exhaust pipe 4 and the third exhaust pipe 7; since most of the dust exhaust is sucked in and discharged from the device through the central exhaust pipe 14, dust adheres to the inner wall of the central exhaust pipe 14 after working for a long time. The power of the axial flow fan is increased to make the fan blades 25 at the bottom rotate accordingly. The greater the power, the faster the cleaning rod 26 rotates, and the cleaning soft rubber strip 28 at the circumferential position is thrown up and contacts the inner wall of the central exhaust pipe 14, thereby removing the dust accumulated on the inner wall and discharging it through the top position.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A turbulence-proof dust exhaust device, comprising a bottom air intake fan box (10), an isolation mesh cover (9) being fixed at a top circumferential position of the bottom air intake fan box (10), an external fixing pipe (1) being fixed to the top of the isolation mesh cover (9) by bolts, characterized in that: A vertical air intake duct (12) is fixed at the middle position of the top of the bottom air intake fan box (10), and the air intake duct (12) is connected to the interior of the bottom air intake fan box (10). A vertically arranged central exhaust duct (14) is fixed at the top of the air intake duct (12), and a support rod is fixed between the circumferential position of the central exhaust duct (14) and the inner wall of the external fixed tube (1). A waterproof top cover (2) is fixed at the top of the external fixed tube (1), and three exhaust holes are opened on the circumferential outer wall of the external fixed tube (1). The three exhaust holes are respectively fixed with a first branch exhaust pipe (3), a second branch exhaust pipe (4) and a third branch exhaust pipe (7) by bolts, and the first branch exhaust pipe (3), the second branch exhaust pipe (4) and the third branch exhaust pipe (7) are located on the inner wall of the external fixed tube (1) and are all installed with branch exhaust adjustment components (18).

2. The anti-turbulence dust exhaust device according to claim 1, characterized in that: An exhaust pipe regulating block (5) is fixed to the bottom of each of the first exhaust pipe (3), the second exhaust pipe (4) and the third exhaust pipe (7), and an exhaust pipe intake pipe head (6) is fixed to the bottom of each of the exhaust pipe regulating blocks (5) by means of bolts.

3. The anti-turbulence dust exhaust device according to claim 2, characterized in that: A fixed fan plate (19) is fixed to the inner wall of the branch exhaust pipe adjustment block (5) by means of bolts, an adjustment fan plate (20) is installed at the middle position of the fixed fan plate (19) by means of a bearing, a first drive motor is fixed inside the fixed fan plate (19), and an output shaft of the first drive motor is installed with a fixed shaft of the adjustment fan plate (20).

4. The anti-turbulence dust exhaust device according to claim 1, characterized in that: A vertically distributed side air guide pipe (15) is installed on the circumferential outer wall of the central exhaust pipe (14); the installation direction of the side air guide pipe (15) faces the bottom, and the side air guide pipe (15) is a through structure, and the side air guide pipe (15) is in communication with the interior of the central exhaust pipe (14).

5. The anti-turbulence dust exhaust device according to claim 4, characterized in that: The interior of the central exhaust pipe (14) is provided as a penetrating main exhaust guide cavity (17), and a branch exhaust pipe guide cavity (16) is provided between the central exhaust pipe (14) and the external fixed pipe (1).

6. The anti-turbulence dust exhaust device according to claim 1, characterized in that: The branch exhaust regulating assembly (18) comprises a fixing sleeve (23) fixed at the pipe openings of the first branch exhaust pipe (3), the second branch exhaust pipe (4) and the third branch exhaust pipe (7); an exhaust air guide ring (22) is hingedly mounted on the top of the fixing sleeve (23); and two electric push rods (21) are hingedly mounted between the bottom of the exhaust air guide ring (22) and the fixing sleeve (23).

7. The anti-turbulence dust exhaust device according to claim 6, characterized in that: A corrugated rubber sleeve (24) is installed in a sealing manner between the exhaust air guide ring (22) and the fixed sleeve (23).

8. The anti-turbulence dust exhaust device according to claim 1, characterized in that: An axial flow fan is installed inside the bottom air intake fan box (10), the air outlet of the axial flow fan is toward the top air intake duct (12), the axial flow fan takes in air through the bottom air intake box (8), and a bottom air intake box filter (11) is installed inside the bottom air intake box (8).

9. The anti-turbulence dust exhaust device according to claim 1, characterized in that: Three auxiliary exhaust fans (13) distributed in a circumferential array are installed on the top of the bottom air intake fan box (10), and the air outlet positions of the three auxiliary exhaust fans (13) are facing the top.

10. The anti-turbulence dust exhaust device according to claim 1, characterized in that: A fan blade bracket is installed at the bottom of the central exhaust pipe (14), and a fan blade (25) is installed on the top of the fan blade bracket through a bearing. A vertically arranged cleaning rod (26) is fixed at the middle position of the top of the fan blade (25), and a fixed brush rod (27) distributed in a vertical array is fixed to the circumferential outer wall of the cleaning rod (26), and a cleaning soft rubber strip (28) is fixed to the end of the fixed brush rod (27).

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