CN212566127U

CN212566127U - Ventilation and noise reduction device for underground fire-fighting engineering

Info

Publication number: CN212566127U
Application number: CN202021366873.1U
Authority: CN
Inventors: 褚义文
Original assignee: Wuhan Yuecheng Environmental Protection Ventilation Equipment Co ltd
Current assignee: Wuhan Yuecheng Environmental Protection Ventilation Equipment Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-02-19
Anticipated expiration: 2030-07-13

Abstract

The utility model discloses an underground fire prevention engineering ventilation noise reduction device, including ventilation pipe and air shaft, install the sponge of making an uproar on the inner wall of ventilation pipe, the inboard of the sponge of making an uproar has the through-hole, seted up first recess on the inner wall of through-hole, the inboard of first recess is installed first noise reduction mechanism, and first noise reduction mechanism includes first lug, second lug and third lug, and the distance between the adjacent first lug is first interval, and the distance between the adjacent second lug is the second interval, and the distance between the adjacent third lug is the third interval, and the length of first interval and second interval and third interval is all inconsistent; through having designed the first mechanism of making an uproar and making an uproar mechanism of making an uproar and second, utilize the irregular design, can avoid producing a large amount of same frequency's noise when the device uses, and the loose porous structure in wide-mouth hole can absorb partial noise, has increased the performance of making an uproar of device.

Description

Ventilation and noise reduction device for underground fire-fighting engineering

Technical Field

The utility model belongs to the technical field of underground fire engineering, concretely relates to underground fire control engineering ventilation noise reduction device.

Background

Application number CN201920132696.1 discloses a ventilation and noise reduction device for underground fire-fighting projects, which comprises a ventilation pipe main pipe and an air shaft, wherein the ventilation pipe main pipe is formed by splicing a plurality of ventilation pipe monomers; the tail end of the main pipe of the ventilation pipe is communicated with the air shaft through a connecting pipeline, the side wall of the air shaft comprises a masonry layer and a silencing layer, a motor support is fixed on the inner wall of the air shaft, an air supply fan and a smoke exhaust fan are installed on the motor support, a support column is fixed at the top of the air shaft, and a rain shield is fixed at the top end of the support column; the utility model solves the problem that the installation height of the single ventilation pipe is not convenient to adjust; secondly, it is inconvenient to control the device to ventilate or exhaust smoke.

The ventilation noise reduction device has the advantages that the noise reduction mode is single, the effect is to be improved, the two motors which are arranged in the opposite directions are adopted, the ventilation air inlet function is realized, the air channel is not optimized, the air speed is reduced, and therefore the underground fire-fighting engineering ventilation noise reduction device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an underground fire control engineering ventilation noise reduction device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a device of making an uproar falls in underground fire prevention engineering ventilation, includes ventilation pipe and wind-pit, install on the inner wall of ventilation pipe and fall the sponge of making an uproar, the inboard of falling the sponge of making an uproar has the through-hole, first recess has been seted up on the inner wall of through-hole, the first mechanism of making an uproar falls in the inboard of first recess is installed, and the first mechanism of making an uproar falls in the first includes first lug, second lug and third lug, and the distance between the adjacent first lug is first interval, and the distance between the adjacent second lug is the second interval, and the distance between the adjacent third lug is the third interval, and first interval is all inconsistent with second interval and third spaced length, the second recess has been seted up on the inner wall of ventilation pipe, the inboard of second recess has a plurality of seconds and falls the mechanism of.

Furthermore, two motors in opposite directions are installed on the inner side of the air shaft, air guide pipes are installed at the output ends of the motors, and inclined planes are arranged at positions, close to the open ends, of the air guide pipes.

Furthermore, the structure of the second noise reduction mechanism is consistent with that of the first noise reduction mechanism, and one end, far away from the air shaft, of the through hole is provided with a wide-mouth hole.

Further, the number of the first bumps is three, the number of the second bumps is four, and the number of the third bumps is five.

Further, the length of the first interval is greater than the length of the second interval, and the length of the second interval is greater than the length of the third interval.

Furthermore, the noise reduction sponge is fixedly connected with the inner wall of the ventilation pipe through strong glue.

Further, the dead lever is all installed to the both sides of ventilation pipe, just the ventilation hole has all been seted up on the both sides wall of ventilation pipe.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. through having designed the first mechanism of making an uproar and making an uproar mechanism of making an uproar and second, utilize the irregular design, can avoid producing a large amount of same frequency's noise when the device uses, and the loose porous structure in wide-mouth hole can absorb partial noise, has increased the performance of making an uproar of device.

2. The air guide pipe is arranged through design, so that the wind conveyed by the motor can be guided conveniently, the loss of wind power is reduced, and the practicability of the device is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

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

fig. 2 is a schematic structural view of the inner wall of the ventilation duct of the present invention;

FIG. 3 is an internal structure view of the air shaft of the present invention;

fig. 4 is a schematic structural view of the air guide duct of the present invention;

in the figure: 1. fixing the rod; 2. a vent hole; 3. a vent pipe; 4. an air guide pipe; 5. an air shaft; 6. a noise reducing sponge; 7. a wide-mouth hole; 8. a through hole; 9. a first groove; 10. a first noise reduction mechanism; 11. a first bump; 12. a second bump; 13. a third bump; 14. a second noise reduction mechanism; 15. a second groove; 16. a motor; 17. an open end; 18. a bevel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, the utility model provides a technical scheme: a ventilation and noise reduction device for an underground fire-fighting project comprises a ventilation pipe 3 and an air shaft 5, wherein noise reduction sponges 6 are installed on the inner wall of the ventilation pipe 3, through holes 8 are formed in the inner sides of the noise reduction sponges 6, first grooves 9 are formed in the inner walls of the through holes 8, first noise reduction mechanisms 10 are installed on the inner sides of the first grooves 9, each first noise reduction mechanism 10 comprises a first lug 11, a second lug 12 and a third lug 13, the distance between every two adjacent first lugs 11 is a first interval, the distance between every two adjacent second lugs 12 is a second interval, the distance between every two adjacent third lugs 13 is a third interval, the lengths of the first interval, the second interval and the third interval are different, a second groove 15 is formed in the inner wall of the ventilation pipe 3, a plurality of second noise reduction mechanisms 14 are arranged on the inner side of the second groove 15, and the first noise reduction mechanisms 10 and the second noise reduction mechanisms 14 are arranged irregularly, when ventilating, can avoid producing the noise of a large amount of same frequencies when the device uses, and the loose porous structure of wide-mouth hole 7, wind gets into the inboard of through-hole 8 through wide-mouth hole 7, can absorb partial noise, has increased the performance of making an uproar that falls of device.

In this embodiment, further, two motors 16 in opposite directions are installed on the inner side of the air shaft 5, the air guide pipes 4 are installed at the output ends of the motors, the inclined planes 18 are arranged at positions, close to the open ends 17, of the air guide pipes 4, the air guide pipes 4 are installed through design, and by means of the large-area open design of the air guide pipes 4, as shown in fig. 4, the wind conveyed by the motors 16 is guided conveniently, loss of wind power is reduced, and the practicability of the device is improved.

In this embodiment, further, the structure of the second noise reduction mechanism 14 is the same as that of the first noise reduction mechanism 10, and one end of the through hole 8, which is far away from the air shaft 5, is provided with a wide hole 7.

In this embodiment, the number of the first bumps 11 is three, the number of the second bumps 12 is four, and the number of the third bumps 13 is five.

In this embodiment, further, the length of the first interval is greater than that of the second interval, and the length of the second interval is greater than that of the third interval.

In this embodiment, further, the noise reduction sponge 6 is fixedly connected with the inner wall of the ventilation pipe 3 through strong glue.

In this embodiment, further, dead lever 1 is all installed to the both sides of ventilation pipe 3, and all seted up ventilation hole 2 on the both sides wall of ventilation pipe 3.

The utility model discloses a theory of operation and use flow: when the device uses, utilize the first irregular setting of falling mechanism 10 and the second of making an uproar of falling 14 of making an uproar of falling, when ventilating, can avoid the device to produce the noise of a large amount of same frequencies when using, and the loose porous structure of wide-mouth hole 7, wind gets into the inboard of through-hole 8 through wide-mouth hole 7, can absorb partial noise, the performance of making an uproar of device has been increased, and the guide duct 4 has been installed through the design, utilize the uncovered design of large tracts of land of guide duct 4, as shown in fig. 4, be convenient for guide the wind that motor 16 carried, reduce the loss of wind-force, the practicality of device has been increased.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a device of making an uproar falls in underground fire prevention engineering ventilation, includes ventilation pipe (3) and ventilating shaft (5), its characterized in that: the inner wall of the ventilation pipe (3) is provided with a noise reduction sponge (6), the inner side of the noise reduction sponge (6) is provided with a through hole (8), the inner wall of the through hole (8) is provided with a first groove (9), the inner side of the first groove (9) is provided with a first noise reduction mechanism (10), the first noise reduction mechanism (10) comprises a first lug (11), a second lug (12) and a third lug (13), the distance between the adjacent first lugs (11) is a first interval, the distance between the adjacent second lugs (12) is a second interval, the distance between the adjacent third lugs (13) is a third interval, the lengths of the first interval, the second interval and the third interval are different, a second groove (15) is formed in the inner wall of the ventilation pipe (3), and a plurality of second noise reduction mechanisms (14) are arranged on the inner side of the second groove (15).

2. The ventilation and noise reduction device of underground fire-fighting projects according to claim 1, characterized in that: two motors (16) with opposite directions are installed on the inner side of the air shaft (5), air guide pipes (4) are installed at the output ends of the motors, and inclined planes (18) are arranged at positions, close to the open ends (17), of the air guide pipes (4).

3. The ventilation and noise reduction device of underground fire-fighting projects according to claim 1, characterized in that: the structure of the second noise reduction mechanism (14) is consistent with that of the first noise reduction mechanism (10), and one end, far away from the air shaft (5), of the through hole (8) is provided with a wide hole (7).

4. The ventilation and noise reduction device of underground fire-fighting projects according to claim 1, characterized in that: the number of the first bumps (11) is three, the number of the second bumps (12) is four, and the number of the third bumps (13) is five.

5. The ventilation and noise reduction device of underground fire-fighting projects according to claim 1, characterized in that: the length of the first interval is greater than the length of the second interval, which is greater than the length of the third interval.

6. The ventilation and noise reduction device of underground fire-fighting projects according to claim 1, characterized in that: the noise reduction sponge (6) is fixedly connected with the inner wall of the ventilation pipe (3) through strong glue.

7. The ventilation and noise reduction device of underground fire-fighting projects according to claim 1, characterized in that: the fixing rods (1) are installed on two sides of the ventilation pipe (3), and the ventilation holes (2) are formed in two side walls of the ventilation pipe (3).