CN205559373U - Shock -resistant pipeline formula silencer - Google Patents

Abstract

The utility model discloses an anti-seismic pipeline type muffler, which comprises a frame body, a muffler layer and more than one muffler sheet, the muffler layer is arranged on both side walls of the frame body, and the muffler sheets are evenly arranged on the frame In the internal cavity, the sound-absorbing sheet includes a frame, a sound-absorbing sheet shell, and sound-absorbing material filled in the sound-absorbing sheet shell, and the sound-absorbing sheet shell is covered on the frame; the sound-absorbing layer includes a sound-absorbing sheet The layer shell and the sound-absorbing material filled therein, reinforcing ribs are provided between the two side plates of the sound-absorbing layer shell; The front end of the body is provided with an arc-shaped deflector; the sound-absorbing sheet is detachably installed in the inner cavity of the frame. The utility model has the following beneficial effects: simple and firm structure, good noise reduction effect, strong shock resistance, stable, safe and reliable operation, convenient maintenance, effectively eliminating noise generated in the ventilation system and ensuring good acoustic performance of the ventilation system.

Description

An Anti-seismic Pipe Type Muffler

technical field

The utility model relates to the technical field of mufflers used in ventilation and air-conditioning systems of nuclear power plants, in particular to an anti-seismic pipe-type sound cleaner.

Background technique

The pipe muffler currently installed in the ventilation and air conditioning system of nuclear power plants mainly eliminates the noise generated by the fluid in the ventilation system pipe of the nuclear power plant, reduces the noise generated by the fluid in the air supply pipe, and plays an important role in further improving the acoustic performance of the ventilation system. . When the system fan is running, the mechanical vibration and the fluid in the system pipeline pass through the pipeline equipped with a muffler, and through the noise reduction effect of the muffler, the fluid that has been reduced by sound absorption and noise is sent to the main control room of the nuclear island, so that the fluid at the end fluid outlet The noise level meets the comfort requirements of the personnel in the main control room, and further improves the working environment of the staff in the main control room. In view of the ventilation and air conditioning system of the main control room of the nuclear power plant, due to the large vibration of the centrifugal fan of the system, the small cross-sectional area of the ventilation system pipe, the large air volume and fast flow velocity of the system, the environmental noise generated in the system is large, which cannot meet the environmental conditions of the main control room. At the same time, the installation of equipment in nuclear power plants puts forward higher requirements for the service life, operation stability, safety performance and seismic performance of the equipment.

Utility model content

The technical problem to be solved by the utility model is to provide an anti-seismic pipe muffler with firm structure, good noise reduction performance, strong anti-seismic ability, stable operation, safety and reliability.

The technical solution to realize the purpose of this utility model is: an anti-seismic pipeline type muffler, which is characterized in that it includes a frame body, a sound-absorbing layer and more than one sound-absorbing sheet, and the sound-absorbing layer is arranged on the two side walls of the frame body , the sound-absorbing sheets are evenly arranged in the inner cavity of the frame, and the sound-absorbing sheets include a frame, a sound-absorbing sheet shell, and sound-absorbing materials filled in the sound-absorbing sheet shell, and the sound-absorbing sheet shell covers the frame Above; the sound-absorbing layer includes a sound-absorbing layer shell and a sound-absorbing material filled therein, and reinforcing ribs are provided between the two side plates of the sound-absorbing layer shell.

The front end of the muffler shell is provided with an arc-shaped deflector, and the front end of the muffler shell is provided with an arc-shaped deflector.

The sound-absorbing sheet is detachably installed in the inner cavity of the frame.

An anti-seismic pipe-type muffler of the utility model has the following beneficial effects: simple and firm structure, good noise reduction effect, strong anti-seismic ability, stable, safe and reliable operation, convenient maintenance, effectively eliminating noise generated in the ventilation system and ensuring ventilation system It has good acoustic performance; the addition of mufflers increases the overall rigidity of the muffler at the same time, which is suitable for use in the environment of large vibration of fan equipment, small cross-sectional area of pipes, large air volume and fast flow velocity in the ventilation and air conditioning system of the main control room of nuclear power plant. It can effectively absorb and reduce the noise generated by the fluid flow in the ventilation duct, and meet the environmental requirements of the staff in the main control room.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail;

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the sectional structure schematic diagram of the utility model;

Fig. 3 is the structural representation of framework of the present utility model;

Fig. 4 is a structural schematic diagram of the noise-absorbing sheet of the present invention.

detailed description

As shown in Figures 1 to 4, an anti-seismic pipe-type muffler includes a frame body 1, a sound-absorbing layer 2 and more than one sound-absorbing sheet 3, and the sound-absorbing layer 2 is arranged on both side walls of the frame body 1, The sound-absorbing sheets 3 are evenly arranged in the inner cavity of the frame body 1, and the sound-absorbing sheets 3 include a frame 3.1, a sound-absorbing sheet shell 3.2, and a sound-absorbing material 3.3 filled in the sound-absorbing sheet shell 3.2. The sound-absorbing layer shell 3.2 is covered on the frame 3.1; the sound-absorbing layer 2 includes the sound-absorbing layer shell 2.1 and the sound-absorbing material 2.2 filled in it, and the two sides of the sound-absorbing layer shell 2.1 are provided with reinforcement Ribs 2.3.

The front end of the muffler shell 3.2 is provided with an arc-shaped deflector 3.21, and the front end of the muffler shell 2.1 is provided with an arc-shaped deflector 2.11, so that the airway inlet forms a trumpet shape, and the air flow resistance is small. smooth.

The side plate 2.12 of the sound-absorbing layer shell 2.1 on one side of the air passage is a perforated plate, and the two side plates 3.22 of the sound-absorbing sheet shell 3.2 are perforated plate.

The sound-absorbing sheet 3 is detachably installed in the inner cavity of the frame body 1, which is convenient for disassembly and maintenance, and greatly reduces the maintenance cost.

Claims (3)

1. the duct type silencer of an antidetonation, it is characterised in that: include framework, silencing plate and more than one Anechoic sheet, described silencing plate is located at framework two side, and described anechoic sheet is evenly arranged in framework inner chamber, institute State anechoic sheet and include framework, anechoic sheet housing and the sound-absorbing material being filled in anechoic sheet housing, described anechoic sheet Housing is coated on framework；Described silencing plate include silencing plate housing and fill its interior sound-absorbing material, described in disappear It is provided with reinforcement between sound layer housing biside plate.

The duct type silencer of a kind of antidetonation the most according to claim 1, it is characterised in that disappear described in: The front end of sound sheet housing is provided with circular arc type deflector, and the front end of silencing plate housing is provided with arc line type deflector.

The duct type silencer of a kind of antidetonation the most according to claim 1, it is characterised in that disappear described in: Sound sheet is removably mountable in framework inner chamber.