CN216555939U

CN216555939U - Wave folded plate type silencer for nuclear power plant

Info

Publication number: CN216555939U
Application number: CN202122750926.0U
Authority: CN
Inventors: 赵虎; 陈鑫; 芦银彬; 王泽超
Original assignee: Jiangsu Huayang Xinsilu Energy Equipment Co ltd
Current assignee: Jiangsu Huayang Xinsilu Energy Equipment Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-05-17
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a wave folded plate type silencer for a nuclear power plant, which relates to the field of silencing of the nuclear power plant and comprises a plurality of shells, wherein the shells are mutually welded, shell end sockets are welded on the surfaces of the opposite sides of the shells on the two sides, a reducer pipe is fixedly connected to the surface of one side of one shell end socket, a flange is fixedly connected to the other end of the reducer pipe, a plurality of middle partition plates are welded on the inner walls of the shells, framework connecting pieces are fixedly connected to the two sides of the inner walls of the shells correspondingly, and a plurality of groups of folded plate silencing piece assemblies are arranged between the framework connecting pieces. The utility model can increase the reflection times of sound waves in the channel by utilizing the multiple bending of the sound wave channel, improve the sound absorption efficiency of the resistive sound absorption material so as to improve the sound attenuation effect of medium and high frequency, and achieve good broadband sound attenuation effect by adding the change of the thickness of the sound absorption layer.

Description

Wave folded plate type silencer for nuclear power plant

Technical Field

The utility model relates to the field of sound elimination of nuclear power plants, in particular to a corrugated folding plate type silencer for a nuclear power plant.

Background

The silencer is a noise reduction device which can be used for a gas flow pipeline with noise transmission, such as a pipeline and an elbow with sound absorption linings or a pipeline with suddenly changed sectional area and other discontinuous acoustic impedances, and the like, so that the noise in the pipeline is attenuated or reflected back, wherein the former is called a resistive silencer, the latter is called a reactive silencer, and the latter is also provided with an impedance composite silencer.

At present, a silencer is often used for silencing noise generated during working in a nuclear power plant, the silencer used in the existing nuclear power plant is generally relatively low in silencing category, good silencing effect cannot be achieved, the sound absorption coefficient is low, the silencing effect is not obvious, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a corrugated plate type silencer for a nuclear power plant, which aims to solve the problems that the silencer used in the nuclear power plant in the background technology is low in silencing category generally, cannot achieve good silencing effect, is low in sound absorption coefficient, is not obvious in silencing effect and the like, and materials used in the silencer are not convenient to recycle after the silencer is not used.

In order to achieve the purpose, the utility model provides the following technical scheme: a corrugated folded plate type silencer for a nuclear power plant comprises a plurality of shells, wherein the shells are welded with each other, shell end sockets are welded on the surfaces of the opposite sides of the shells on both sides, a reducer pipe is fixedly connected on the surface of one side of one shell end socket, a flange is fixedly connected at the other end of the reducer pipe, a plurality of middle partition plates are welded on the inner walls of the shells, two corresponding sides of the inner wall of the shell are fixedly connected with a framework connecting piece together, a plurality of groups of folded plate noise elimination sheet assemblies are arranged between the framework connecting pieces, a plurality of partition plates are welded inside the folded plate noise elimination sheet assemblies, guide plates are fixedly connected on both sides of the folded plate noise elimination sheet assemblies, pressing strips are fixedly connected on the surfaces of the partition plates, and aluminum oxide fiber sound absorption plates are fixedly connected on both sides of the inner walls of the partition plates, and filling materials are filled around the inner walls of the plurality of shells.

Preferably, the two sides of the upper surface of the pressing strips are provided with rivet pulling holes.

Preferably, the connection between the alumina fiber board and the framework is riveted with the inside of the shell and the upper surface of the partition board through rivets.

Preferably, a nameplate assembly is welded on the surface of the shell, and coefficients of various parts are engraved on the surface of the nameplate assembly.

Preferably, the length of each of the shells is 290 cm, and the length of each of the two shell heads is 145 cm.

Preferably, the perimeter of the shell head and the perimeter of the shell are both 2.94 meters.

Preferably, the thickness of the alumina fiber sound absorption plate is 50 mm.

Preferably, the rivet is made of stainless steel material, and the flange, the shell head and the shell are made of synthetic steel material.

The utility model has the technical effects and advantages that:

1. through the arrangement of the flange, the reducer pipe, the shell end enclosure, the shell, the middle partition plate, the framework connecting piece, the folded plate noise elimination plate assembly, the partition plate, the guide plate, the pressing strip, the alumina fiber sound absorption plate and the filling material, the multiple bending of the sound wave channel can be utilized, the reflection times of the sound wave in the channel can be increased, the sound absorption efficiency of the resistive sound absorption material can be improved, the medium-high frequency noise elimination effect can be improved, and the change of the thickness of the sound absorption layer can be added, so that the good broadband noise elimination effect can be achieved.

2. Through setting up take out the rivet to can adopt good riveting utensil and slim layering when riveting, increase riveted lifting surface area, and can not too increase the resistance that the atmosphere circulated the time, thereby ensure the fastness of structure, through setting up the data plate subassembly, thereby can be fine carry out very clear understanding to various parts in the device.

Drawings

Fig. 1 is a schematic front sectional view of the present invention.

Fig. 2 is a schematic cross-sectional view of the left side a of the present invention.

FIG. 3 is a schematic cross-sectional view of the right side B of the present invention.

Fig. 4 is a schematic cross-sectional view at the left side B of the present invention.

FIG. 5 is an enlarged view of the structure at I in FIG. 1 according to the present invention.

FIG. 6 is an enlarged view of FIG. 1 at II according to the present invention.

Fig. 7 is an enlarged schematic view of fig. 1 at III according to the present invention.

Fig. 8 is an enlarged view of the structure at V in fig. 1 according to the present invention.

In the figure: 1. a flange; 2. a reducer pipe; 3. a shell end enclosure; 4. a housing; 5. a middle partition plate; 6. a framework connector; 7. a folded plate noise elimination sheet assembly; 8. a partition plate; 9. a baffle; 10. layering; 11. a nameplate assembly; 12. an alumina fiber acoustic panel; 13. drawing out the rivet; 14. and (4) filling materials.

Detailed Description

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a wave folded plate type silencer for a nuclear power plant, which is shown in figures 1-8 and comprises a plurality of shells 4, wherein nameplate assemblies 11 are welded on the surfaces of the shells 4, coefficients of various parts are engraved on the surfaces of the nameplate assemblies 11, so that various parts in the device can be well known, the shells 4 are welded with each other, shell end sockets 3 are welded on the surfaces of the opposite sides of the shells 4 on the two sides, a reducer pipe 2 is fixedly connected to the surface of one side of one shell end socket 3, and a flange 1 is fixedly connected to the other end of the reducer pipe 2, so that the basic requirements of the device on use can be met;

the inner walls of a plurality of shells 4 are welded with a plurality of middle partition plates 5, wherein two sides of the inner walls of two corresponding shells 4 are fixedly connected with framework connecting pieces 6 together, a plurality of groups of folded plate noise elimination sheet assemblies 7 are arranged between the framework connecting pieces 6, a plurality of partition plates 8 are welded inside the plurality of groups of folded plate noise elimination sheet assemblies 7, guide plates 9 are fixedly connected with two sides of the plurality of groups of folded plate noise elimination sheet assemblies 7, pressing strips 10 are fixedly connected with the surfaces of the plurality of partition plates 8, rivet-drawing nails 13 are arranged on two sides of the upper surfaces of the plurality of pressing strips 10, the alumina fiber board is connected with the framework and is riveted with the inner part of the shell 4 and the upper surfaces of the partition plates 8 through the rivet-drawing nails 13, the rivet tool and the thin pressing strips 10 are adopted during riveting, the stress area of riveting is increased, the resistance of air flow when passing is not excessively increased, thereby ensuring the firmness of the structure, the two sides of the inner walls of the plurality of the partition plates 8 are fixedly connected with alumina fiber sound absorption plates 12, the filling materials 14 are filled around the inner walls of the shells 4, so that the multiple bending of the sound wave channel can be utilized, the reflection times of the sound wave in the channel are increased, the sound absorption efficiency of the resistive sound absorption material is improved, the medium-high frequency noise elimination effect is improved, and the thickness change of the sound absorption layer is added, so that the good broadband noise elimination effect is achieved.

As shown in fig. 1, the lengths of the plurality of shells 4 are 290 cm, the lengths of the two shell heads 3 are 145 cm, the circumferences of the shell heads 3 and the shells 4 are 2.94 m, and the thickness of the alumina fiber acoustic board 12 is 50mm, so that the generated noise can be treated to the maximum extent, the rivet 13 is made of stainless steel, and the flange 1, the shell heads 3 and the shells 4 are made of synthetic steel materials, so that the durability of the device is improved, and the service life of the device is prolonged.

The working principle of the utility model is as follows: firstly, when the device is assembled, except for the main structure consisting of a flange 1, a reducer pipe 2, a shell, a framework and a folded plate sound absorption plate, all parts except a sound absorption material are welded, then when an internal structure is installed, the main sound absorption material, namely an alumina fiber plate, is riveted with the framework through a rivet 13, the performance of all aspects can be influenced due to low connection strength, and the improvement of riveting strength is also a key process;

the noise reduction device is connected with a device which needs noise reduction in a nuclear power plant through a flange 1, noise generated after connection enters a shell end enclosure 3 through the flange 1 and a reducer pipe 2 and then enters a shell 4, the noise is separated through a partition plate 8 after entering the device, then is guided through a guide plate 9, and then is refracted and reduced through a folded plate noise reduction sheet assembly 7 and a pressing strip 10, so that transmitted noise is continuously reduced;

and the intermediate baffle 5 inside the device provides a certain noise barrier, and the filling material 14 inside the housing 4 provides a noise barrier preventing it from flowing out of the device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a nuclear power plant is with wave folded plate formula silencer, includes a plurality of shells (4), its characterized in that: a plurality of the shells (4) are welded with each other, the opposite side surfaces of the shells (4) on two sides are welded with shell end sockets (3), one side surface of one shell end socket (3) is fixedly connected with a reducer pipe (2), the other end of the reducer pipe (2) is fixedly connected with a flange (1), a plurality of middle partition plates (5) are welded on the inner wall of the shell (4), two corresponding sides of the inner wall of the shell (4) are fixedly connected with a framework connecting piece (6) together, a plurality of groups of folded plate noise elimination plate assemblies (7) are arranged between the framework connecting pieces (6), a plurality of partition plates (8) are welded inside the folded plate noise elimination plate assemblies (7), guide plates (9) are fixedly connected on two sides of the folded plate noise elimination plate assemblies (7), and pressing strips (10) are fixedly connected on the surfaces of the partition plates (8), the two sides of the inner wall of the plurality of partition plates (8) are fixedly connected with alumina fiber sound absorbing plates (12), and the periphery of the inner wall of the shell (4) is filled with filling materials (14).

2. The corrugated plate type muffler for a nuclear power plant according to claim 1, characterized in that: and rivets (13) are arranged on two sides of the upper surface of each of the pressing strips (10).

3. The corrugated plate type muffler for a nuclear power plant according to claim 1, characterized in that: the alumina fiber sound absorption plate (12) is connected with the framework and is riveted with the inside of the shell (4) and the upper surface of the partition plate (8) through a rivet (13).

4. The corrugated plate type muffler for a nuclear power plant according to claim 2, characterized in that: the surface welding of shell (4) has data plate subassembly (11), the coefficient of various parts is carved with on the surface of data plate subassembly (11).

5. The corrugated plate type muffler for a nuclear power plant according to claim 1, characterized in that: the lengths of the shells (4) are 290 cm, and the lengths of the two shell seal heads (3) are 145 cm.

6. The corrugated plate type muffler for a nuclear power plant according to claim 1, characterized in that: the circumferences of the shell seal head (3) and the shell (4) are both 2.94 meters.

7. The corrugated plate type muffler for a nuclear power plant according to claim 1, characterized in that: the thickness of the alumina fiber sound absorption plate (12) is 50 mm.

8. The corrugated plate type muffler for a nuclear power plant according to claim 3, characterized in that: the rivet (13) is made of stainless steel material, and the flange (1), the shell seal head (3) and the shell (4) are made of synthetic steel material.