CN218894803U

CN218894803U - Noise reduction device of blower

Info

Publication number: CN218894803U
Application number: CN202222803756.2U
Authority: CN
Inventors: 杨达将; 陈真杰; 杨再梅; 张海龙; 王晓辉; 杨浪
Original assignee: Guizhou Yanhe Southwest Cement Co ltd
Current assignee: Guizhou Yanhe Southwest Cement Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-04-21
Anticipated expiration: 2032-10-24

Abstract

The utility model provides a device of making an uproar falls in air-blower relates to the air-blower technical field of making an uproar falls, the power distribution box comprises a box body, the box is equipped with air intake and air outlet, be provided with first silencer in the air intake, be provided with the second silencer in the air outlet, the interior bottom of box is equipped with damper, damper includes fixed plate, first damper and second damper, the fixed plate with the interior bottom of box passes through first damper fixed connection, second damper locates between the fixed plate with the lateral wall of box, the silencer of the air outlet department of the utility model and air intake department reduces the air current noise of air-blower, and damper of the interior bottom of box reduces the shock impact of air-blower, and the cotton absorption noise of inhaling of sound of box inner wall weakens noise pollution.

Description

Noise reduction device of blower

Technical Field

The application relates to the technical field of noise reduction of a blower, in particular to a noise reduction device of a blower.

Background

The blower is one of key equipment in cement production line, and in cement production work, the blower is used in a large amount for gas transportation, dust material transportation, flue gas desulfurization and the like, and the blower is easy to generate noise in the use process, and the noise sources mainly comprise mechanical noise and airflow noise.

The mechanical noise is generated by the vibration of the gear and the bearing in the blower and the vibration of the machine body plus friction and impact; the air flow noise is generated by the rotation of the fan blades in the blower to squeeze air and drive the air flow to form a turbine shape.

However, the noise generated by the blower in the running process is high, and the noise cannot be weakened and directly transmitted to the work area environment, so that the noise pollution is caused to the work area environment, and the physical health of workers is affected.

Disclosure of Invention

An object of the embodiment of the application is to provide a blower noise reduction device, which can reduce noise generated by a blower and weaken pollution of the blower noise to the work area environment.

The embodiment of the application provides a device of making an uproar falls in air-blower, the power distribution box comprises a box body, the box is equipped with air intake and air outlet, be provided with first silencer in the air intake, be provided with the second silencer in the air outlet, the interior bottom of box is equipped with damper, damper includes fixed plate, first damper and second damper, the fixed plate with the interior bottom of box passes through first damper fixed connection, second damper locates the fixed plate with between the lateral wall of box, second damper's one end with fixed plate fixed connection, second damper's the other end with box lateral wall butt, the inner wall of box is equipped with inhales the sound cotton.

Further, a buffer ring is arranged between the side wall of the air inlet and the first muffler, and between the side wall of the air outlet and the second muffler.

Further, a flexible pipe is arranged in the box body and is fixedly connected with the air inlet or the air outlet.

Further, mineral cotton is arranged on the outer side of the flexible pipe for wrapping.

Further, the box body is provided with a sound insulation door.

Further, the bottom of the box body is provided with a damping rubber block.

The utility model has the beneficial effects that:

according to the utility model, the first muffler is arranged at the air inlet of the box body, the second muffler is arranged at the air outlet of the box body, the air suction opening of the blower is connected with the air inlet of the box body, the air supply opening of the blower is connected with the air outlet of the box body, the first muffler and the second muffler reduce the air flow noise generated by the air suction and the air supply of the blower, the blower is fixedly arranged on the fixed plate, the fixed plate is fixedly connected with the bottom in the box body through the first damping spring, one end of the second damping spring is fixedly connected with the fixed plate, the other end of the second damping spring is abutted against the side wall of the box body, when the blower operates to generate vibration, the first damping spring and the second damping spring of the damping assembly can effectively relieve the vibration impact transmitted to the fixed plate by the blower, reduce the vibration noise generated by the blower, and the inner wall of the box body is provided with sound absorbing cotton to absorb the noise generated by the blower, so as to weaken the noise transmitted to the environment in a work area, reduce the pollution of the noise to the environment in the work area and reduce the influence of the noise on the health of workers.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a first cross-sectional view of the present utility model;

FIG. 3 is a second cross-sectional view of the present utility model;

fig. 4 is an enlarged partial schematic view of the present utility model.

The reference numerals are respectively:

1. a case; 2. an air inlet; 3. an air outlet; 4. a first muffler; 5. a second muffler; 6. a shock absorbing assembly; 61. a fixing plate; 62. a first damper spring; 63. a second damper spring; 7. sound absorbing cotton; 8. a buffer ring; 9. a flexible tube; 10. mineral wool; 11. a soundproof door; 12. damping rubber blocks; 13. a blower.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships that are conventionally put in use of the product of the application, are merely for convenience of description of the present application and simplification of description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Specific examples:

as shown in fig. 1-3, the utility model provides a noise reduction device of a blower, which is used for weakening noise generated by the blower, and comprises a box body 1, wherein the box body 1 is provided with an air inlet 2 and an air outlet 3, a first muffler 4 is arranged in the air inlet 2, a second muffler 5 is arranged in the air outlet 3, a damping component 6 is arranged at the inner bottom of the box body 1, the damping component 6 comprises a fixing plate 61, a first damping spring 62 and a second damping spring 63, the fixing plate 61 is fixedly connected with the inner bottom of the box body 1 through the first damping spring 62, the second damping spring 63 is arranged between the fixing plate 61 and the side wall of the box body 1, and sound absorbing cotton 7 is arranged at the inner wall of the box body 1.

As shown in fig. 1-3, in the implementation, the exhaust port of the blower 1313 is connected with the air inlet 2 of the box 1, the air supply port of the blower 13 is connected with the air outlet 3 of the box 1, the blower 13 is fixedly mounted on the fixing plate 61, one end of the second damping spring 63 is fixedly connected with the fixing plate 61, the other end of the second damping spring 63 is abutted against the side wall of the box 1, when the blower 13 operates, the first muffler 4 at the air inlet 2 and the second muffler 5 at the air outlet 3 weaken the noise generated by the air supply or the air flow of the blower 13, the operation of the blower 13 generates vibration, the vibration is transferred to the fixing plate 61, and then the vibration of the first damping spring 62 and the second damping spring 63 is relieved, meanwhile, the noise generated by the blower 13 is absorbed by the sound absorbing cotton 7 at the inner wall of the box 1, the noise transmitted to the work area environment is weakened, the pollution of the work area environment caused by the noise is effectively reduced, and the influence of the noise on the health of workers is weakened.

As shown in fig. 2 and fig. 4, a buffer ring 8 is disposed between the side wall of the air inlet 2 and the first muffler 4, and between the side wall of the air outlet 3 and the second muffler 5, so as to prevent the air flow from directly transmitting the vibration impact generated by the first muffler 4 or the second muffler 5 to the box 1 when the blower 13 is exhausting or blowing, and the buffer ring 8 plays an effective role in buffering when the first muffler 4 or the second muffler 5 vibrates, so as to reduce secondary noise pollution generated by the vibration of the first muffler 4 or the second muffler 5, and the buffer ring 8 is made of pearl cotton or foam and the like.

As shown in fig. 2 and 3, a flexible tube 9 is disposed in the box 1, the flexible tube 9 is fixedly connected with the air inlet 2 or the air outlet 3, the air suction opening and the air supply opening of the blower 13 can be respectively connected with the air inlet 2 or the air outlet 3 through the flexible tube 9, and noise generated by the impact of air flow on the pipe elbow or the joint can be prevented through the flexible tube 9.

As shown in fig. 1-3, the outer side of the flexible pipe 9 is provided with mineral wool 10 for wrapping, and the mineral wool 10 has good sound absorption effect and can effectively reduce noise generated by flowing of gas in the flexible pipe 9.

As shown in fig. 1, the cabinet 1 is provided with a soundproof door 11, which is convenient for daily maintenance and overhaul of the internal facilities of the cabinet 1, and the soundproof door 11 can prevent noise generated by the blower 13 from being directly transmitted into the work area environment.

As shown in fig. 1 and 2, the bottom of the box body 1 is provided with a damping rubber block 12, and the damping rubber block 12 can effectively relieve noise generated by vibration of the box body 1 and prevent secondary noise pollution.

The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A noise reduction device for a blower, comprising: the novel sound absorbing box comprises a box body, the box is equipped with air intake and air outlet, be provided with first silencer in the air intake, be provided with the second silencer in the air outlet, the interior bottom of box is equipped with damper, damper includes fixed plate, first damper and second damper, the fixed plate with the interior bottom of box passes through first damper fixed connection, the second damper is located the fixed plate with between the lateral wall of box, the inner wall of box is equipped with inhales the sound cotton.

2. A blower noise reduction device according to claim 1, wherein: buffer rings are arranged between the side wall of the air inlet and the first muffler, and between the side wall of the air outlet and the second muffler.

3. A blower noise reduction device according to claim 2, wherein: the flexible pipe is arranged in the box body and is fixedly connected with the air inlet or the air outlet.

4. A blower noise reduction device according to claim 3, wherein: mineral cotton is arranged on the outer side of the flexible pipe for wrapping.

5. A blower noise reduction device according to claim 1, wherein: the box body is provided with a sound insulation door.

6. A blower noise reduction device according to claim 1, wherein: the bottom of the box body is provided with a damping rubber block.