CN109899306B - Fan with wide working range for tunnel ventilation - Google Patents

Fan with wide working range for tunnel ventilation Download PDF

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Publication number
CN109899306B
CN109899306B CN201910240930.7A CN201910240930A CN109899306B CN 109899306 B CN109899306 B CN 109899306B CN 201910240930 A CN201910240930 A CN 201910240930A CN 109899306 B CN109899306 B CN 109899306B
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air
shell
cylinder
pipe
fixed
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CN109899306A (en
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彭乃仁
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Pagman Technology (Taicang) Co.,Ltd.
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Pagman Technology Taicang Co ltd
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Abstract

The invention relates to a fan with wide working range for tunnel ventilation, which comprises a shell, an air inlet pipe, two mounting plates and two hanging rods, wherein an air exhaust mechanism is arranged below the shell, a driving assembly is arranged at the communication part of the air inlet pipe and the shell, the air exhaust mechanism comprises a fixed pipe, an air exhaust pipe, a first air cylinder, a spring and at least two connecting rods, the driving assembly comprises a wind shield, a second air cylinder and an air pipe, when the fan with wide working range for tunnel ventilation operates, external air enters the shell from the air inlet pipe and the air exhaust pipe and is exhausted from the shell, the external air acts on the wind shield of the driving assembly, the height position of the air exhaust pipe can be changed while the wind shield is driven to move, so that equipment can exhaust air from different height positions below the shell, the air exhaust range of the fan is further expanded, and the air purification in a large range is convenient for the tunnel, thereby improving the practicability of the equipment.

Description

Fan with wide working range for tunnel ventilation
Technical Field
The invention relates to the field of tunnel equipment, in particular to a fan with a wide working range for tunnel ventilation.
Background
The fan is a driven fluid machine which is widely applied to ventilation, dust beating and cooling of factories, mines, tunnels, cooling towers and buildings. In the aspect of the tunnel, the fan can be used for ventilation, harmful gases containing smoke dust and waste gas are discharged out of the tunnel, and a required air environment is created for the working space of the tunnel and underground construction engineering.
In order to avoid influencing the inside traffic in the tunnel, the fan is mostly fixedly installed at the top in the tunnel, but because the existing fan is fixed, when the fan runs, the fan only acts on the air around the two ends of the equipment, the working range is limited, the fan cannot act on the lower part of the fan, the lower part of the fan is caused, various smoke and dust and automobile tail gas are easily accumulated, the fan is difficult to ventilate around, and the practicability of the existing fan is further reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the fan with a wide working range for tunnel ventilation is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a fan with a wide working range for tunnel ventilation comprises a shell, an air inlet pipe, two mounting plates and two hanging rods, wherein the shell is cylindrical, the mounting plates correspond to the hanging rods one by one, the two mounting plates are fixed at two ends above the shell through the two hanging rods respectively, screws are arranged at four corners of the mounting plates, the air inlet pipe is fixed at one end of the shell, a motor, a rotating shaft and at least two fan blades are arranged in the shell, the motor is fixed in the shell and is in transmission connection with the rotating shaft, the fan blades are circumferentially and uniformly distributed on the periphery of the rotating shaft, an air exhaust mechanism is arranged below the shell, the air inlet pipe is conical and cylindrical, the outer diameter of one end, close to the shell, of the air inlet pipe is smaller than that of the other end of the air inlet pipe, and a driving assembly;
the air pumping mechanism comprises a fixed pipe, an air pumping pipe, a first air cylinder, a spring and at least two connecting rods, wherein the fixed pipe is fixed below the shell and is communicated with the shell, the fixed pipe is positioned between the rotating shaft and the air inlet pipe, the periphery of the air pumping pipe is hermetically connected with the inner wall of the fixed pipe, the cylinder body of the first air cylinder is fixed in the fixed pipe, an air rod of the first air cylinder is arranged downwards, the axis of the cylinder body of the first air cylinder is vertical to the axis of the shell, one end of the spring is connected with the bottom of the cylinder body of the first air cylinder, the other end of the spring is connected with the air rod of the first air cylinder, the spring is in a stretching state, the connecting rods are uniformly distributed on the periphery of one end, far away from the shell, of the air rod of the first air cylinder in the circumferential direction, and the air rod of the first air;
the drive assembly comprises a wind shield, a second cylinder and a gas pipe, wherein a cylinder body of the second cylinder is fixed in the shell, the cylinder body of the second cylinder is communicated with a cylinder body of the first cylinder through the gas pipe, the wind shield is fixedly connected with a gas rod of the second cylinder, the wind shield is cylindrical, an axis of the shell is perpendicular to the wind shield, the diameter of the wind shield is larger than the minimum inner diameter of the gas inlet pipe, and the diameter of the wind shield is smaller than the maximum inner diameter of the gas inlet pipe.
Preferably, in order to fix the angular position of the wind deflector, the driving assembly further comprises a plurality of orientation units, the orientation units are circumferentially and uniformly distributed on the wind deflector, the wind deflector comprises orientation rods and through holes, the through holes are formed in the wind deflector, the orientation rods are parallel to the axis of the shell, one ends of the orientation rods are fixed on the inner wall of the air inlet pipe, and the other ends of the orientation rods are fixedly connected with the protruding blocks.
Preferably, in order to avoid the wind deflector from disengaging from the orientation bar, an end of the orientation bar remote from the housing is provided with a projection.
Preferably, in order to expand the air exhaust range, the bottom end of the air exhaust pipe is provided with an air exhaust cover, and the shape of the air exhaust cover is a horn shape.
Preferably, in order to prevent external sundries from entering the shell, a first filter screen is arranged at one end, far away from the shell, of the air inlet pipe, a second filter screen is arranged at one end, far away from the air inlet pipe, of the shell, and a third filter screen is arranged at the bottom end of the air exhaust pipe.
Preferably, in order to facilitate the movement of the suction pipe, the inner wall of the fixed pipe is coated with a lubricating oil.
The invention has the advantages that when the fan with wide working range for tunnel ventilation operates, external air enters the shell from the air inlet pipe and the air exhaust pipe and is exhausted from the shell, the external air acts on the wind shield of the driving assembly to drive the wind shield to move, and simultaneously the height position of the air exhaust pipe can be changed, so that equipment can exhaust air from different height positions below the shell, the air exhaust range of the fan is further expanded, the air purification on the tunnel in a large range is facilitated, and the practicability of the equipment is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a wide range fan for tunnel ventilation according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
in the figure: 1. the air suction device comprises a shell, 2 parts of an air inlet pipe, 3 parts of a mounting plate, 4 parts of a suspension rod, 5 parts of screws, 6 parts of a motor, 7 parts of a rotating shaft, 8 parts of fan blades, 9 parts of a fixed pipe, 10 parts of an air suction pipe, 11 parts of a first air cylinder, 12 parts of a spring, 13 parts of a connecting rod, 14 parts of an air baffle, 15 parts of a second air cylinder, 16 parts of an air pipe, 17 parts of a directional rod, 18 parts of a bump, 19 parts of an air suction cover, 20 parts of a first filter screen, 21 parts of a second filter screen and 22 parts.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-2, a fan with a wide working range for tunnel ventilation comprises a housing 1, an air inlet pipe 2, two mounting plates 3 and two suspenders 4, wherein the housing 1 is cylindrical, the mounting plates 3 correspond to the suspenders 4 one by one, the two mounting plates 3 are respectively fixed at two ends above the housing 1 through the two suspenders 4, screws 5 are arranged at four corners of the mounting plates 3, the air inlet pipe 2 is fixed at one end of the housing 1, a motor 6, a rotating shaft 7 and at least two fan blades 8 are arranged in the housing 1, the motor 6 is fixed in the housing 1, the motor 6 is in transmission connection with the rotating shaft 7, the fan blades 8 are circumferentially and uniformly distributed at the periphery of the rotating shaft 7, an air exhaust mechanism is arranged below the housing 1, the air inlet pipe 2 is conical and cylindrical, and the outer diameter of one end of the air inlet pipe 2 close to the housing 1 is smaller than the outer, a driving assembly is arranged at the communication part of the air inlet pipe 2 and the shell 1;
the air extracting mechanism comprises a fixed pipe 9, an air extracting pipe 10, a first air cylinder 11, a spring 12 and at least two connecting rods 13, the fixed pipe 9 is fixed below the shell 1, the fixed pipe 9 is communicated with the shell 1, the fixed pipe 9 is positioned between the rotating shaft 7 and the air inlet pipe 2, the periphery of the exhaust tube 10 is hermetically connected with the inner wall of the fixed tube 9, the cylinder body of the first cylinder 11 is fixed in the fixed tube 9, the air rod of the first air cylinder 11 is arranged downwards, the axis of the cylinder body of the first air cylinder 11 is vertical to the axis of the shell 1, one end of the spring 12 is connected with the bottom of the cylinder body of the first cylinder 11, the other end of the spring 12 is connected with the air rod of the first cylinder 11, the spring 12 is in a stretching state, the connecting rods 13 are uniformly distributed on the periphery of one end, far away from the shell 1, of the air rod of the first air cylinder 11 in the circumferential direction, and the air rod of the first air cylinder 11 is fixedly connected with the air suction pipe 10 through the connecting rods 13;
the driving assembly comprises a wind shield 14, a second cylinder 15 and an air pipe 16, wherein a cylinder body of the second cylinder 15 is fixed in the shell 1, the cylinder body of the second cylinder 15 is communicated with a cylinder body of the first cylinder 11 through the air pipe 16, an air rod of the wind shield 14 and the second cylinder 15 is fixedly connected, the wind shield 14 is cylindrical, an axis of the shell 1 is perpendicular to the wind shield 14, the diameter of the wind shield 14 is larger than the minimum inner diameter of the air inlet pipe 2, and the diameter of the wind shield 14 is smaller than the maximum inner diameter of the air inlet pipe 2.
This fan is when using, supports mounting panel 3 at the top in the tunnel, punches through screw 5 to the position of fixed mounting panel 3 utilizes the position of the fixed shell 1 of jib 4 of mounting panel 3 below, thereby makes the top of fan fixed mounting in the tunnel. When the fan operates, the motor 6 in the shell 1 is started to drive the rotating shaft 7 to rotate, so that the fan blades 8 rotate to generate air flow, the air flow conveys the air in the shell 1 to one end, far away from the air inlet pipe 2, of the shell 1, the pressure in the shell 1 is reduced, so that the external air enters the shell 1 through the air inlet pipe 2 and flows to the other end of the shell 1 under the action of the air flow, the function of promoting air circulation is realized, the harmful gas of smoke dust in a tunnel is conveniently conveyed to the outside, in order to enlarge the action range of the fan, the fixed pipe 9 is arranged below the shell 1, the air exhaust pipe 10 is arranged inside the fixed pipe 9, when the motor 6 in the fan drives the fan blades 8 to rotate, the external air enters the air inlet pipe 2 and acts on the wind shield 14 to push the wind shield 14 to move towards the shell 1, so as to push the air rod of the second air cylinder 15, because the cylinder body of second cylinder 15 passes through trachea 16 and the cylinder body intercommunication of first cylinder 11, thereby make the gas pole of first cylinder 11 remove downwards, make spring 12 further tensile, drive exhaust tube 10 downstream through connecting rod 13, the below of shell 1, get into in the fixed pipe 9 through exhaust tube 10, discharge from the one end of keeping away from intake pipe 2 of shell 1 again, along with the rotational speed of motor 6 is different, the effort of outside air to deep bead 14 is different, make the displacement distance of deep bead 14 change, and then make the displacement distance of the gas pole of first cylinder 11 and the gas pole of second cylinder 15 different, exhaust tube 10 bleeds from different height position, thereby the equipment of being convenient for according to the rotational speed of motor 6, bleed from different height position of shell 1 below, the scope of bleeding of this fan has been enlarged, the practicality of equipment has been improved.
Preferably, in order to fix the angular position of the wind deflector 14, the driving assembly further comprises a plurality of orientation units, the orientation units are circumferentially and uniformly distributed on the wind deflector 14, the wind deflector 14 comprises orientation rods 17 and through holes, the through holes are formed in the wind deflector 14, the orientation rods 17 are parallel to the axis of the housing 1, one end of each orientation rod 17 is fixed on the inner wall of the air inlet pipe 2, and the other end of each orientation rod 17 is fixedly connected with a lug 18. The movement direction of the wind deflector 14 is fixed by the orientation rod 17 passing through the wind deflector 14 in parallel with the axis of the housing 1, so that the wind deflector 14 moves smoothly along the axis of the orientation rod 17 when the external air acts on the wind deflector 14.
Preferably, in order to prevent the wind deflector 14 from being detached from the orientation bar 17, the orientation bar 17 is provided with a projection 18 at its end remote from the housing 1. Since the projection 18 cannot pass through the through hole, the range of movement of the wind deflector 14 is restricted by the projection 18, and the wind deflector 14 is prevented from being detached from the orientation lever 17.
Preferably, in order to enlarge the air extraction range, the bottom end of the air extraction pipe 10 is provided with an air extraction cover 19, and the shape of the air extraction cover 19 is horn-shaped. The contact area with the air under the housing 1 is enlarged by the suction hood 19, thereby facilitating the enlargement of the suction range.
Preferably, in order to prevent external impurities from entering the casing 1, a first filter screen 20 is arranged at one end of the air inlet pipe 2, which is far away from the casing 1, a second filter screen 21 is arranged at one end of the casing 1, which is far away from the air inlet pipe 2, and a third filter screen 22 is arranged at the bottom end of the air exhaust pipe 10. The first filter screen 20 can prevent external sundries from entering the housing 1 through the air inlet pipe 2, and similarly, the second filter screen 21 and the third filter screen 22 can prevent external sundries from entering the housing 1 and protect the component facilities inside the housing 1.
Preferably, the inner wall of the fixed tube 9 is coated with a lubricating oil in order to facilitate the movement of the suction tube 10. Utilize lubricating oil to make things convenient for the periphery of exhaust tube 10 to slide along the inner wall of fixed pipe 9, reduce the frictional force that exhaust tube 10 received when sliding to the exhaust tube 10 of being convenient for removes.
When the fan operates, the fan blade 8 is driven to rotate by the motor 6, when external air enters the shell 1 through the air inlet pipe 2 and is discharged from the shell 1, the air inlet pipe 1 is arranged below the shell 1, the external air enters the air exhaust pipe 10 and is discharged through the fixing pipe 9 and the shell 1, and meanwhile, the external air acts on the air baffle 14, so that the air baffle 14 moves, the air exhaust pipe 10 is driven to move in the vertical direction through the second air cylinder 15 and the first air cylinder 11, the height position of the air exhaust pipe 10 is changed, the external air with different heights enters the shell 1 through the air exhaust pipe 10 and the fixing pipe 9 and is discharged from the shell 1 again, the working range of the fan is enlarged, and the practicability of the fan is improved.
Compared with the prior art, this a wide fan of working range for tunnel ventilation is when the operation, outside air gets into in the shell 1 from intake pipe 2 and exhaust tube 10 two positions, discharge from shell 1 again, outside air acts on drive assembly's deep bead 14, when driving deep bead 14 and removing, still can change the high position of exhaust tube 10, make equipment bleed from the different high positions of shell 1 below, and then enlarged the scope of bleeding of fan, be convenient for carry out air purification on a large scale to the tunnel, thereby the practicality of equipment has been improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (5)

1. The utility model provides a fan that working range is wide for tunnel ventilation, includes shell (1), intake pipe (2), two mounting panels (3) and two jib (4), the shape of shell (1) is the cylinder, mounting panel (3) and jib (4) one-to-one, two mounting panels (3) are fixed at the both ends of the top of shell (1) through two jib (4) respectively, the four corners department of mounting panel (3) is equipped with screw (5), the one end at shell (1) is fixed in intake pipe (2), be equipped with motor (6), pivot (7) and two at least flabellum (8) in shell (1), motor (6) are fixed in shell (1), motor (6) are connected with pivot (7) transmission, flabellum (8) circumference evenly distributed is in the periphery of pivot (7), its characterized in that, the below of shell (1) is equipped with air exhaust mechanism, the air inlet pipe (2) is in a conical cylinder shape, the outer diameter of one end, close to the shell (1), of the air inlet pipe (2) is smaller than that of the other end of the air inlet pipe (2), and a driving assembly is arranged at the communication position of the air inlet pipe (2) and the shell (1);
the air pumping mechanism comprises a fixed pipe (9), an air pumping pipe (10), a first air cylinder (11), a spring (12) and at least two connecting rods (13), the fixed pipe (9) is fixed below the shell (1), the fixed pipe (9) is communicated with the shell (1), the fixed pipe (9) is positioned between the rotating shaft (7) and the air inlet pipe (2), the periphery of the air pumping pipe (10) is hermetically connected with the inner wall of the fixed pipe (9), the cylinder body of the first air cylinder (11) is fixed in the fixed pipe (9), the air rod of the first air cylinder (11) is arranged downwards, the axis of the cylinder body of the first air cylinder (11) is vertical to the axis of the shell (1), one end of the spring (12) is connected with the bottom of the cylinder body of the first air cylinder (11), the other end of the spring (12) is connected with the air rod of the first air cylinder (11), and the spring (12) is in a stretching state, the connecting rods (13) are circumferentially and uniformly distributed on the periphery of one end, far away from the shell (1), of the air rod of the first air cylinder (11), and the air rod of the first air cylinder (11) is fixedly connected with the air exhaust pipe (10) through the connecting rods (13);
the driving assembly comprises a wind shield (14), a second cylinder (15) and an air pipe (16), wherein a cylinder body of the second cylinder (15) is fixed in the shell (1), the cylinder body of the second cylinder (15) is communicated with a cylinder body of the first cylinder (11) through the air pipe (16), the wind shield (14) is fixedly connected with an air rod of the second cylinder (15), the wind shield (14) is cylindrical, an axis of the shell (1) is perpendicular to the wind shield (14), the diameter of the wind shield (14) is larger than the minimum inner diameter of the air inlet pipe (2), and the diameter of the wind shield (14) is smaller than the maximum inner diameter of the air inlet pipe (2).
2. The wide-operating-range fan for tunnel ventilation according to claim 1, wherein the driving assembly further comprises a plurality of orientation units, the orientation units are circumferentially and uniformly distributed on the wind deflector (14), the wind deflector (14) comprises orientation rods (17) and through holes, the through holes are formed in the wind deflector (14), the orientation rods (17) are parallel to the axis of the housing (1), one end, far away from the housing (1), of each orientation rod (17) is provided with a lug (18), one end of each orientation rod (17) is fixed on the inner wall of the air inlet pipe (2), and the other end of each orientation rod (17) is fixedly connected with the lug (18).
3. The fan with wide working range for tunnel ventilation according to claim 1, characterized in that the bottom end of the air suction pipe (10) is provided with an air suction hood (19), and the shape of the air suction hood (19) is horn-shaped.
4. The fan with the wide working range for tunnel ventilation according to claim 1, wherein one end of the air inlet pipe (2) far away from the shell (1) is provided with a first filter screen (20), one end of the shell (1) far away from the air inlet pipe (2) is provided with a second filter screen (21), and the bottom end of the air exhaust pipe (10) is provided with a third filter screen (22).
5. The fan with wide operating range for tunnel ventilation according to claim 1, characterized in that the inner wall of the fixed pipe (9) is coated with a lubricating oil.
CN201910240930.7A 2019-03-28 2019-03-28 Fan with wide working range for tunnel ventilation Active CN109899306B (en)

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CN201910240930.7A CN109899306B (en) 2019-03-28 2019-03-28 Fan with wide working range for tunnel ventilation

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Application Number Priority Date Filing Date Title
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CN109899306B true CN109899306B (en) 2020-10-27

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CN201162688Y (en) * 2007-12-20 2008-12-10 陕西平阳风机有限公司 Novel impeller ventilation fan especially for tunnel
CN102635384A (en) * 2012-04-13 2012-08-15 中铁十七局集团第三工程有限公司 Air distribution controller for tunnel construction air duct
CN106050289A (en) * 2016-06-30 2016-10-26 徐州安普瑞特能源科技有限公司 Movable mine ventilation device
CN205823681U (en) * 2016-06-08 2016-12-21 天津中隧通风机有限公司 A kind of constructing tunnel blower fan
CN206516448U (en) * 2017-01-19 2017-09-22 慈溪欧新生物科技有限公司 A kind of rain-proof dust-proof transformer mounting bracket
CN208651213U (en) * 2018-06-27 2019-03-26 杨思睿 A kind of tunnel ventilation jet blower

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201162688Y (en) * 2007-12-20 2008-12-10 陕西平阳风机有限公司 Novel impeller ventilation fan especially for tunnel
CN102635384A (en) * 2012-04-13 2012-08-15 中铁十七局集团第三工程有限公司 Air distribution controller for tunnel construction air duct
CN205823681U (en) * 2016-06-08 2016-12-21 天津中隧通风机有限公司 A kind of constructing tunnel blower fan
CN106050289A (en) * 2016-06-30 2016-10-26 徐州安普瑞特能源科技有限公司 Movable mine ventilation device
CN206516448U (en) * 2017-01-19 2017-09-22 慈溪欧新生物科技有限公司 A kind of rain-proof dust-proof transformer mounting bracket
CN208651213U (en) * 2018-06-27 2019-03-26 杨思睿 A kind of tunnel ventilation jet blower

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