CN217898297U - Local ventilator system sharing air inlet silencer - Google Patents

Abstract

The utility model discloses a local ventilator system sharing an air inlet silencer, which comprises an air divider, wherein a first fan and a second fan are respectively arranged on two air pipelines of the air divider; no. one fan and No. two fans include respectively: import muffler, one-level host computer, second grade host computer and export muffler, its characterized in that: the two left ends of the air distributor are connected with a first fan and a second fan through flanges, the first fan and the second fan are connected with a common air inlet silencer, and the upper end and the lower end of the common air inlet silencer can be used for air inlet. Two fans share a muffler, can guarantee the air input that two upper and lower fans are the same, have satisfied user operation requirement, admit air from top to bottom in the adoption, can reduce air velocity to the noise has been reduced, the inside whole amortization material that adopts of shared muffler, can dredge the air current, absorbs isolated noise, and the local fan system of the muffler that admits air in the sharing has avoided the repeated configuration muffler.

Description

Local ventilator system sharing air inlet silencer

Technical Field

The utility model relates to a coal mining equipment field, in particular to local ventilation blower system of muffler admits air of sharing.

Background

The local ventilator is mainly used for local air supply of a coal mine underground tunneling roadway. Along with wisdom mine in recent years, the equipment intelligent degree is constantly improved, in the past, single local fan connects the dryer cloth and supplies the air for the driving face, two ventilators are placed from top to bottom through the fixed bolster now, two fans are connected with the air distributor, the air distributor is connected with the dryer cloth again, realized that the fan is used one and is equipped with one, share a dryer cloth, when a fan breaks down or needs regularly to fall the machine, can switch to another fan rapidly, join in marriage intelligent control equipment and can realize the intellectuality. Because the space of the underground roadway of the mine is narrow and small, the two fans are horizontally placed without space, the two fans are generally placed up and down, and the two fans are generally close to each other due to the height of the roadway. Along with the improvement of the environmental awareness of coal mine workers in recent years, the tower-type low-noise local fan with the best noise reduction effect is mostly required to be adopted, the air inlet of the tower-type silencer of the local fan placed at the lower part is very close to the bottom of the tower-type silencer at the upper part, the air inflow is influenced, the performance of the two fans is inconsistent, finally, the air supply distance of the upper fan and the lower fan is inconsistent, and the use requirement of a user cannot be met.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a ventilator system for a common intake silencer, which can effectively solve the problems of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a local ventilation blower system of sharing air inlet muffler, includes the air distributor, install a fan and No. two fans on two air pipe of air distributor respectively. No. one fan and No. two fans include respectively: import muffler, one-level host computer, second grade host computer and export muffler, the both left ends of minute wind ware all are connected with fan and No. two fans through the flange, and fan and No. two fans are connected with sharing air intake muffler, the equal air admission of the upper and lower end of sharing air intake muffler.

Preferably, the shared air inlet silencer comprises a shell silencing barrel, silencing pieces made of silencing materials are attached and compacted on the inner wall of the shell silencing barrel, two groups of fan air inlets connected with the ventilating duct through flanges are formed in the shell silencing barrel, and a plurality of groups of lined silencing plates are vertically arranged in the shell silencing barrel.

Preferably, the shell silencing barrel is made of a 3mm steel plate, and the thickness of the silencing material is set to be mm.

Preferably, the air inlets at the upper and lower ends of the common air intake silencer are all provided with grids which can block foreign matters from being sucked.

Preferably, the mesh of the mesh is no greater than 30 x 30mm.

Preferably, the outer surfaces of the common air inlet silencer and the grid are provided with a layer of anticorrosive coating.

Preferably, the anticorrosive coating is provided as a ZS-711 inorganic anticorrosive coating and the thickness of the ZS-711 inorganic anticorrosive coating is provided as 120 to 150 μm.

Compared with the prior art, the invention has the following beneficial effects:

1. the two fans share one silencer, the problem of inconsistent air inlet amount of the first fan and the second fan which are innovatively solved is solved, and the same air inlet amount of the upper fan and the lower fan is ensured, so that the performance consistency of the fans is ensured, the consistency of air supply distance is ensured, and the use requirement of a user is met.

2. The air intake area is increased to about 2 times by adopting up-and-down air intake, the airflow noise is in direct proportion to the 8 th power of the flow speed, the airflow speed is reduced, and therefore the noise is reduced; the air inlet is far away from the human ear, so that the working environment noise of coal mine workers can be effectively reduced; the shared silencer is internally and integrally made of silencing materials, the lined silencing plates are arranged inside the shared silencer, airflow can be dredged, and isolated noise is absorbed.

3. The local ventilator system of the shared air inlet silencer avoids the repeated configuration of the silencer.

Drawings

FIG. 1 is a view showing the structure of a tower type inlet silencer of an original local ventilator;

FIG. 2 is a block diagram of a utility model local fan system with shared intake silencer;

fig. 3 is a top view cross-sectional structure diagram of a common intake silencer of a ventilator system of a local area system of the present invention.

In the figure: 1. a wind distributor; 2. an inlet muffler; 3. a primary host; 4. a secondary host; 5. An outlet muffler; 6. a first fan; 7. a second fan; 8. a common intake silencer; 81. A housing silencing pot; 82. a lined acoustical panel; 83. a fan air inlet; 9. tower inlet muffler.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, a local ventilator system sharing an air intake silencer comprises an air distributor 1, wherein a first fan 6 and a second fan 7 are respectively mounted on two ventilation pipelines of the air distributor 1. The first fan 6 and the second fan 7 respectively include: import muffler 2, one-level host computer 3, second grade host computer 4 and export muffler 5, the both left ends of minute wind ware 1 all are connected with fan 6 and No. two fans 7 through the flange, and fan 6 and No. two fans 7 are connected with sharing muffler 8 that admits air, the sharing is admitted air the upper and lower end of muffler 8 and all can be admitted air. Local fan system 8 of sharing air inlet muffler, admit air from top to bottom in the adoption, the area of admitting air has increased about 2 times than current tower type area of admitting air, the air current noise is directly proportional with 8 times of the velocity of flow, the air velocity has been reduced, thereby the noise has been reduced, two tower type import silencers 9 of adoption have been abandoned, thereby it is close to apart from the tower type import silencer 9 top import of No. two fans 7 to have avoided the tower type import silencer 9 bottom of No. 6 fan, influence the problem of No. two fan 7 air input, thereby two fan air input unanimities have been guaranteed, and tower type import silencer 9 of repeated configuration has been avoided.

Shared air intake silencer 8 includes shell silencing barrel 81, the laminating compaction has the amortization piece that noise cancelling material made on the inner wall of shell silencing barrel 81, be provided with on the shell silencing barrel 81 two sets ofly utilize the fan air inlet 83 that the flange is connected with air pipe, the vertical several groups of formula of arranging acoustical panel 82 that is provided with in the shell silencing barrel 81, its noise cancelling piece can effectively the noise elimination, arrange the formula acoustical panel, can dredge the air current, absorb isolated noise, further noise reduction, because the air inlet is located upper portion and bottom, keep away from the height of people's ear when standing, the noise that the story can feel is lower, noise than tower import muffler 9 can be by about 3dB lowly.

The housing silencing pot 81 is made of a 3mm steel plate, and the thickness of the silencing material is set to 50mm.

The air inlets at the upper and lower ends of the common air inlet silencer 8 are all provided with grids which can block the suction of foreign matters.

The mesh of the grid is not larger than 30 x 30mm.

The outer surfaces of the shared air inlet silencer 8 and the grids are provided with a layer of anticorrosive coating, so that the shared air inlet silencer 8 and the grids can be prevented from being corroded, and the service life of the shared air inlet silencer is prolonged.

The anticorrosive coating is set to be a ZS-711 inorganic anticorrosive coating and the thickness of the ZS-711 inorganic anticorrosive coating is set to be 120-150 μm, which has good acid and alkali resistance, high hardness, and good wear resistance.

It should be noted that the utility model relates to a share air inlet silencer's local fan system, a silencer is shared to two fans, the problem of the inconsistent air input of the second fan that is creatively solved, the same air input of the upper and lower two fans is guaranteed, thereby the fan performance is guaranteed to be consistent, the uniformity of air supply distance is satisfied the user's operation requirement, adopt upper and lower air inlet, the air inlet area is increased to about 2 times, the air flow noise is in direct proportion with 8 times of the velocity of flow, the velocity of air flow is reduced, thereby the noise is reduced; the air inlet is far away from the human ear, so that the working environment noise of coal mine workers can be effectively reduced; the whole of the interior of the shared silencer is made of silencing materials, the lined silencing plates are arranged in the shared silencer, airflow can be dredged, and isolated noise can be absorbed, the local ventilator system 8 of the shared air inlet silencer is lower by about 3dB than tower type silencing noise, and the local ventilator system of the shared air inlet silencer avoids repeated configuration of the silencer.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A local ventilator system sharing an air inlet silencer comprises an air distributor (1), wherein a first fan (6) and a second fan (7) are respectively installed on two ventilation pipelines of the air distributor (1); the first fan (6) and the second fan (7) respectively comprise: import muffler (2), one-level host computer (3), second grade host computer (4) and export muffler (5), its characterized in that: the two left ends of the air distributor (1) are connected with a first fan (6) and a second fan (7) through flanges, the first fan (6) and the second fan (7) are connected with a shared air inlet silencer (8), and the upper end and the lower end of the shared air inlet silencer (8) can be used for air inlet.

2. The system of claim 1, wherein the inlet silencer is shared by the local fan system: shared air inlet silencer (8) includes shell silencing barrel (81), the laminating compaction has the amortization piece that noise cancelling material made on the inner wall of shell silencing barrel (81), be provided with on shell silencing barrel (81) two sets of with air pipe utilizes fan air inlet (83) that the flange goes on connecting, vertically be provided with a plurality of groups of formula of going acoustical panel (82) in shell silencing barrel (81).

3. The system of claim 2, wherein the inlet silencer is shared by the local fan system: the shell silencing barrel (81) is made of a 3mm steel plate, and the thickness of the silencing material is set to be 50mm.

4. The local ventilator system sharing an intake silencer according to any one of claims 1 to 3, wherein: air inlets at the upper end and the lower end of the common air inlet silencer (8) are provided with grids which can block foreign matters from being sucked.

5. The system of claim 4, wherein the ventilator system further comprises: the mesh of the grid is not larger than 30 x 30mm.

6. The system of claim 4, wherein the ventilator system further comprises: and the outer surfaces of the common air inlet silencer (8) and the grids are provided with a layer of anticorrosive coating.

7. The system of claim 6 wherein the inlet silencer is shared by the local air mover system and the inlet silencer is shared by the local air mover system: the anticorrosion coating is set to be ZS-711 inorganic anticorrosion coating, and the thickness of the ZS-711 inorganic anticorrosion coating is set to be 120-150 mu m.

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