CN214837405U

CN214837405U - Silencer for tunnel fan

Info

Publication number: CN214837405U
Application number: CN202121226409.7U
Authority: CN
Inventors: 奚修伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-11-23
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a be used for tunnel fan silencer relates to tunnel technical field. Including the noise elimination part of airing exhaust, the one end outer wall fixedly connected with noise elimination box of noise elimination part of airing exhaust, one side outer wall fixedly connected with air inlet noise elimination part of noise elimination box, the inner wall fixedly connected with of noise elimination box gathers together the board, the vent has been seted up to the outer wall of gathering together the board. Through being provided with noise elimination part and the air inlet noise elimination part of airing exhaust, connect with the whistle box between the part, the operation of rotary motor, the flabellum that drives the output setting rotates, for preventing that the flabellum from causing the damage between to the part, it is provided with first wind frame and second wind frame to be provided with in the flabellum outer lane specially, be provided with the board of gathering together simultaneously in the inside of whistle box, the vent has been seted up on the board of gathering together, blow along with the operation of fan, avoided because fan muffler device size is huge, can occupy the effective ventilation cross-section in great tunnel, produce great resistance, arouse loss of pressure, cause the problem of the effective power decline of fan.

Description

Silencer for tunnel fan

Technical Field

The utility model relates to a tunnel technical field especially relates to a be used for tunnel fan silencer.

Background

With the continuous development of national economy, the investment of China in the aspect of traffic construction is increased day by day, the construction technology of highway tunnels is more and more diverse day by day, and at present, the total length of highway tunnels in China is about 5000 kilometers and is the first place in the world. For tunnel noise, a tunnel fan is a main noise source, and the frequency range of the noise is wide and exists in the range of 125-6300 Hz.

Traditional tunnel fan silencer device is when using:

1. because traditional tunnel fan silencer device can occupy the effective ventilation cross-section in great tunnel because its is bulky when using, has leaded to producing great resistance, causes pressure loss, causes the effective power of fan to descend.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for tunnel fan silencer has solved traditional tunnel fan silencer device and because its is bulky when using, can occupy the effective ventilation cross-section in great tunnel, has leaded to producing great resistance, arouses loss of pressure, causes the effective power decline technical problem of fan.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for tunnel fan silencer, is including the noise elimination part of airing exhaust, the one end outer wall fixedly connected with noise elimination box of noise elimination part of airing exhaust, one side outer wall fixedly connected with air inlet noise elimination part of noise elimination box, the board is gathered together to the inner wall fixedly connected with of noise elimination box, the vent has been seted up to the outer wall of gathering together the board, the equal fixedly connected with fixed block of inner wall of air inlet noise elimination part and the noise elimination part of airing exhaust, the outer wall fixedly connected with inner tube of fixed block.

Preferably, the inner wall fixedly connected with connecting seat of the inner tube that is located air inlet noise elimination part department, the top outer wall fixedly connected with rotary motor of connecting seat, rotary motor's output fixedly connected with connecting piece, the outer wall fixedly connected with flabellum of connecting piece, the quantity of flabellum is two, the other end fixedly connected with axle block of connecting piece.

Preferably, the inner wall of the sound muffling box is fixedly connected with a first wind frame and a second wind frame.

Preferably, the outer wall of one side of the gathering plate is fixedly connected with the outer wall of one side of the air inlet silencing part, and the outer wall of the other side of the gathering plate is fixedly connected with the outer wall of one side of the air exhaust silencing part.

Preferably, the inner walls of the first wind frame and the second wind frame are movably connected with the outer wall of the fan blade, the outer wall of one side of the first wind frame is fixedly connected with the outer wall of one side of the air inlet noise elimination component, and the outer wall of one side of the second wind frame is fixedly connected with the outer wall of one side of the air exhaust noise elimination component.

Preferably, the outer walls of the air exhaust silencing part and the air inlet silencing part are fixedly connected with an installation block, and the inner walls of the air exhaust silencing part and the air inlet silencing part are fixedly connected with an air window.

Compared with the prior art, the utility model provides a pair of be used for tunnel fan silencer has following beneficial effect:

1. the utility model provides a silencer for a tunnel fan, which is provided with an air exhaust silencing part and an air inlet silencing part, the parts are connected by a silencing box, a rotary motor runs to drive fan blades arranged at an output end to rotate, in order to prevent the fan blades from damaging the parts, a first air frame and a second air frame are specially arranged on the outer ring of the fan blades, a gathering plate is arranged inside the silencing box, a vent is arranged on the gathering plate, and air is blown along with the running of the fan, thereby avoiding the problems that the fan silencer device occupies a larger effective ventilation section of the tunnel and generates larger resistance to cause pressure loss and the reduction of the effective power of the fan, and solving the problems that the traditional tunnel fan silencer device occupies a larger effective ventilation section of the tunnel due to large size when in use and generates larger resistance, causing pressure loss and causing a problem of drop in the effective power of the fan.

2. The utility model provides a be used for tunnel fan silencer, adopt and be specially in the inside inner tube that is provided with of noise elimination part and air inlet noise elimination part of airing exhaust, the one end that two parts are relative all is connected with the inner tube, the board that gathers together that sets up becomes the shrinkage type, the transmission of noise is at first gathered together board separation, then filtering via amortization inner tube amortization, the both ends of part are provided with the wind window simultaneously, draw in the noise once more, simultaneously because the length of part, make the transmission interval of noise blocked, make the noise continuously reduced, the excessive problem of fan running noise has been solved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the gathering plate of the present invention;

FIG. 3 is a schematic view of the structure of the sound muffling box of the present invention;

FIG. 4 is a schematic view of the structure of the intake silencer component of the present invention;

fig. 5 is a schematic structural diagram of the rotary motor according to the present invention.

In the figure: 1. an air exhaust silencing component; 2. an air intake silencing component; 3. a sound silencing box; 4. a gathering plate; 401. a vent; 5. a fixed block; 6. an inner barrel; 7. a connecting seat; 8. a rotary motor; 9. a first wind frame; 10. a second wind frame; 11. a fan blade; 12. a connecting member; 13. a shaft block; 14. a wind window; 15. and (7) installing the block.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-5, the present invention provides a technical solution: a silencer for a tunnel fan comprises an air exhaust silencing part 1, wherein the outer wall of one end of the air exhaust silencing part 1 is fixedly connected with a silencing box 3, the outer wall of one side of the silencing box 3 is fixedly connected with an air inlet silencing part 2, the inner wall of the silencing box 3 is fixedly connected with a gathering plate 4, the outer wall of the gathering plate 4 is provided with a vent 401, the inner walls of the air inlet silencing part 2 and the air exhaust silencing part 1 are both fixedly connected with a fixed block 5, the outer wall of the fixed block 5 is fixedly connected with an inner cylinder 6, the inner wall of the silencing box 3 is fixedly connected with a first air frame 9 and a second air frame 10, the outer wall of one side of the gathering plate 4 is fixedly connected with the outer wall of one side of the air inlet silencing part 2, the outer wall of the other side of the gathering plate 4 is fixedly connected with the outer wall of one side of the air exhaust silencing part 1, the inner walls of the first air frame 9 and the second air frame 10 are movably connected with the outer wall of a fan blade 11, the outer wall of one side of the first air frame 9 is fixedly connected with the outer wall of one side of the air inlet silencing part 2, the outer wall of one side of the second wind frame 10 is fixedly connected with the outer wall of one side of the air exhaust silencing component 1, the outer walls of the air exhaust silencing component 1 and the air inlet silencing component 2 are fixedly connected with an installation block 15, and the inner walls of the air exhaust silencing component 1 and the air inlet silencing component 2 are fixedly connected with a wind window 14.

In this embodiment, simultaneously along with the operation of fan, can be accompanied with serious noise simultaneously, for solving this problem, especially exhaust noise elimination part 1 and the inside inner tube 6 that is provided with of air inlet noise elimination part 2, the relative one end of two parts all is connected with inner tube 6, the board 4 one-tenth shrinkage type that gathers together of setting, the transmission of noise is at first by gathering together board 4 separation, then at the amortization filtration via amortization inner tube 6, the both ends of part are provided with wind window 14 simultaneously, draw in the noise again, simultaneously because the length of part, make the transmission interval of noise blocked, make the noise continuously reduced.

Example two:

referring to fig. 1-5, based on the first embodiment, the present invention provides a technical solution: the inner wall fixedly connected with connecting seat 7 of the inner tube 6 that is located air inlet noise elimination part 2 department, the top outer wall fixedly connected with rotary motor 8 of connecting seat 7, the output fixedly connected with connecting piece 12 of rotary motor 8, the outer wall fixedly connected with flabellum 11 of connecting piece 12, the quantity of flabellum 11 is two, the other end fixedly connected with axle block 13 of connecting piece 12.

In this embodiment, be provided with noise elimination part 1 and the air inlet noise elimination part 2 of airing exhaust simultaneously, simultaneously again air exhaust noise elimination part 1 and air inlet noise elimination part 2 between connect through the whistle box 3 that sets up, along with the operation of the rotary motor 8 that sets up in the air inlet noise elimination part 2, the flabellum 11 that drives the output and sets up rotates, simultaneously for preventing that flabellum 11 from leading to the fact the damage between the part, it is provided with first wind frame 9 and second wind frame 10 especially to be provided with in the outer lane of flabellum 11, be provided with simultaneously and gather together board 4 in whistle box 3 inside, the vent 401 has been seted up on gathering together board 4, blow along with the operation of fan, avoided because fan muffler device size is huge, can occupy the effective ventilation cross-section in great tunnel, lead to can produce great resistance, arouse pressure loss, cause the problem that the effective power of fan descends.

The working principle is as follows: the utility model is provided with an air exhaust noise elimination component 1 and an air inlet noise elimination component 2, the air exhaust noise elimination component 1 and the air inlet noise elimination component 2 are connected through a silencing box 3, along with the operation of a rotary motor 8 arranged in the air inlet noise elimination component 2, a fan blade 11 arranged at an output end is driven to rotate, and simultaneously, in order to prevent the fan blade 11 from damaging the components, a first air frame 9 and a second air frame 10 are specially arranged on the outer ring of the fan blade 11, a gathering plate 4 is arranged inside the silencing box 3, a vent 401 is arranged on the gathering plate 4, and air is blown along with the operation of the fan, thereby avoiding the problems that the fan silencer device has a huge size, can occupy a larger effective ventilation section of a tunnel, can generate larger resistance, cause pressure loss, cause the problem of the effective power reduction of the fan, and simultaneously along with the operation of the fan, can be accompanied with serious noise, in order to solve the problem, an inner cylinder 6 is arranged inside an exhaust silencing part 1 and an intake silencing part 2, one ends of the two parts opposite to each other are connected with the inner cylinder 6, a gathering plate 4 is arranged to be of a contraction type, noise transmission is firstly blocked by the gathering plate 4, then noise is absorbed and filtered through the silencing inner cylinder 6, air windows 14 are arranged at two ends of each part, noise is gathered again, and meanwhile due to the length of each part, the transmission interval of the noise is blocked, and the noise is continuously reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for tunnel fan silencer, includes noise elimination part (1) of airing exhaust, its characterized in that: the utility model discloses a silencer, including exhaust silencing part (1), one end outer wall fixedly connected with silencing box (3) of silencing box (1), one side outer wall fixedly connected with air inlet silencing part (2) of silencing box (3), the inner wall fixedly connected with of silencing box (3) gathers together board (4), the vent (401) have been seted up to the outer wall of gathering together board (4), the equal fixedly connected with fixed block (5) of inner wall of air inlet silencing part (2) and exhaust silencing part (1), the outer wall fixedly connected with inner tube (6) of fixed block (5).

2. The muffler for a tunnel blower according to claim 1, wherein: the air inlet silencing device is characterized in that a connecting seat (7) is fixedly connected to the inner wall of an inner barrel (6) located at an air inlet silencing component (2), a rotating motor (8) is fixedly connected to the outer wall of the top of the connecting seat (7), a connecting piece (12) is fixedly connected to the output end of the rotating motor (8), fan blades (11) are fixedly connected to the outer wall of the connecting piece (12), the number of the fan blades (11) is two, and a shaft block (13) is fixedly connected to the other end of the connecting piece (12).

3. The muffler for a tunnel blower according to claim 1, wherein: the inner wall of the sound silencing box (3) is fixedly connected with a first wind frame (9) and a second wind frame (10).

4. The muffler for a tunnel blower according to claim 1, wherein: the outer wall of one side of the gathering plate (4) is fixedly connected with the outer wall of one side of the air inlet silencing part (2), and the outer wall of the other side of the gathering plate (4) is fixedly connected with the outer wall of one side of the air exhaust silencing part (1).

5. The muffler for a tunnel blower according to claim 3, wherein: the inner walls of the first air frame (9) and the second air frame (10) are movably connected with the outer wall of the fan blade (11), the outer wall of one side of the first air frame (9) is fixedly connected with the outer wall of one side of the air inlet noise elimination component (2), and the outer wall of one side of the second air frame (10) is fixedly connected with the outer wall of one side of the air exhaust noise elimination component (1).

6. The muffler for a tunnel blower according to claim 1, wherein: the air exhaust silencing component (1) and the air inlet silencing component (2) are fixedly connected with an installation block (15) on the outer wall, and the air exhaust silencing component (1) and the air inlet silencing component (2) are fixedly connected with an air window (14) on the inner wall.