CN221277860U - Noise reduction structure of mute diesel generator set - Google Patents

Abstract

The utility model discloses a noise reduction structure of a mute diesel generator set, which comprises an air pipe which is arranged on the mute diesel generator set in a matching way, wherein a storage cavity for placing sound absorbing cotton is formed in the air pipe, a plurality of through holes communicated with the storage cavity are formed in the air pipe, a buffer block is fixedly connected onto the air pipe, and a slowing component for slowing down air flow is arranged in the buffer block. The advantages are that: noise pollution generated by flowing of gas in the pipeline is absorbed by the sound absorbing cotton, and the wind speed of the gas is slowed down by the spring and the damper, so that noise pollution generated by too high wind speed can not be absorbed by the sound absorbing cotton is avoided, and the environment friendliness of the diesel generator set is improved.

Description

Noise reduction structure of mute diesel generator set

Technical Field

The utility model relates to the technical field of diesel generating sets, in particular to a noise reduction structure of a mute diesel generating set.

Background

The diesel generator is a small-sized power generation device, and is a power machine which uses diesel oil and the like as fuel and uses a diesel engine as a prime motor to drive a generator to generate power. The whole set of unit is generally composed of components such as a diesel engine, a generator, a control box, a fuel tank, a storage battery for starting and controlling, a protection device, an emergency cabinet and the like.

In the prior art, when the diesel generator is operated, heat is generated, and in order to perform heat dissipation operation on the diesel generator, a fan is additionally arranged on the diesel generator to realize heat dissipation operation on the diesel generator, but in the operation process of the fan, the flow of gas in a pipeline can cause the diesel generator to generate higher noise pollution, so that the health of people working nearby the diesel generator is not facilitated.

Disclosure of utility model

The utility model aims to solve the problems in the prior art and provides a noise reduction structure of a mute diesel generator set.

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

The noise reduction structure of the mute diesel generator set comprises an air pipe which is arranged on the mute diesel generator set in a matching way, wherein a containing cavity for containing sound-absorbing cotton is formed in the air pipe, a plurality of through holes communicated with the containing cavity are formed in the air pipe, and a buffer block is fixedly connected to the air pipe; be provided with the subassembly that slows down that is used for slowing down the air flow in the buffer block, accomodate the chamber and offer between tuber pipe outer wall and inner wall, the through-hole is the round hole structure, through-hole circumference equidistance sets up on the tuber pipe inner wall, the buffer block is cavity rectangle massive structure, it is equipped with the ventilating board including fixed the direction slide rail that sets up on the buffer block inner wall to slow down the subassembly, the slip cap is equipped with on the direction slide rail, fixedly be provided with four dampers between tuber pipe and the ventilating board, the welding has the spring between tuber pipe and the ventilating board.

In order to better achieve the above purpose, the present utility model adopts the following technical scheme: the ventilating plate is of a square plate-shaped structure, and a plurality of ventilating holes which are arranged in equal rows and ordered are formed in the ventilating plate.

In order to better achieve the above purpose, the present utility model adopts the following technical scheme: the spring is movably sleeved on the damper, and the damper is arranged at four corner positions of the ventilating plate.

The utility model has the advantages that: noise pollution generated by flowing of gas in the pipeline is absorbed by the sound absorbing cotton, and the wind speed of the gas is slowed down by the spring and the damper, so that noise pollution generated by too high wind speed can not be absorbed by the sound absorbing cotton is avoided, and the environment friendliness of the diesel generator set is improved.

Drawings

Fig. 1 is a schematic structural diagram of a noise reduction structure of a silent diesel generator set provided by the utility model;

FIG. 2 is a side cross-sectional view of the noise reduction structure of the silent diesel generator set of FIG. 1 according to the present utility model;

Fig. 3 is a schematic diagram of a partial enlarged structure of a noise reduction structure of a silent diesel generator set in fig. 2 according to the present utility model.

In the figure: 1. an air duct; 2. a storage chamber; 3. a through hole; 4. a buffer block; 5. a guide rail; 6. a ventilation board; 7. a damper; 8. and (3) a spring.

Description of the embodiments

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1 to 3, the noise reduction structure of the mute diesel generator set includes an air duct 1 which is mounted on the mute diesel generator set in a matching manner, and it should be noted that: the air pipe 1 is an air inlet end of a fan component in the diesel generating set; the air pipe 1 is provided with a containing cavity 2 for containing sound-absorbing cotton, the containing cavity 2 is arranged between the outer wall and the inner wall of the air pipe 1, the sound-absorbing cotton is a common acoustic material and can effectively absorb sound waves to reduce noise and echo, and the principle of the sound-absorbing cotton is based on the acoustic sound absorption principle, namely, when the sound waves propagate in the material, the sound waves interact with structures such as fibers and pores in the material, so that the sound wave energy is converted into heat energy or mechanical energy, and the reflection and propagation of the sound waves are reduced; the air pipe 1 is provided with a plurality of through holes 3 communicated with the accommodating cavity 2, the through holes 3 are of round hole structures, the through holes 3 are circumferentially equidistant on the inner wall of the air pipe 1, and sound wave energy generated by gas flow can be fully contacted with sound-absorbing cotton in the accommodating cavity 2 through the through holes 3, so that the use effect of the sound-absorbing cotton is improved; the air pipe 1 is fixedly connected with a buffer block 4, and the buffer block 4 is of a hollow rectangular block structure; a buffer block 4 is provided with a buffer component for buffering the air flow; the component that slows down is equipped with ventilating board 6 including fixed direction slide rail 5 that sets up on buffer block 4 inner wall, slip cover on the direction slide rail 5, ventilating board 6 is square platy structure, and has seted up a plurality of ventilation holes of waiting to arrange the order on the ventilating board 6, through the setting of ventilating board 6 for gas can produce a short time and pause when contacting with ventilating board 6, and can disperse gas through the ventilation hole, thereby reaches the purpose that reduces the gas velocity of flow, with this reducible working pressure who inhales the sound cotton, and then improves the result of use who inhales the sound cotton.

Four dampers 7 are fixedly arranged between the air pipe 1 and the ventilation plate 6, the dampers 7 are arranged at four corner positions of the ventilation plate 6, springs 8 are welded between the air pipe 1 and the ventilation plate 6, the springs 8 are movably sleeved on the dampers 7, vibration acting force generated by gas impacting the ventilation plate 6 can be absorbed and consumed through the springs 8 and the dampers 7, the springs 8 are used as energy storage elements, the dampers 7 are used as energy consumption elements, so that the ventilation plate 6 is subjected to shock absorption protection, and the service life of the ventilation plate 6 is prolonged; it should be noted that: the damper 7 is of a specific model size, the model selection is required to be determined according to the actual size and the like of the device, and a specific model selection calculation method adopts the prior art in the field, so that the description is omitted.

When the mute diesel generator set operates, gas can enter the air pipe 1, the gas impacts the ventilating plate 6, the ventilating plate 6 vertically moves down on the guide sliding rail 5, the ventilating plate 6 extrudes the spring 8 and impacts the damper 7, the flowing speed of the gas is reduced, and sound generated by flowing of the gas in the air pipe 1 is absorbed through the sound absorbing cotton in the accommodating cavity 2.

Claims (3)

1. The noise reduction structure of the mute diesel generator set comprises an air pipe (1) which is arranged on the mute diesel generator set in a matching way, and is characterized in that a containing cavity (2) for containing sound-absorbing cotton is formed in the air pipe (1), a plurality of through holes (3) communicated with the containing cavity (2) are formed in the air pipe (1), and a buffer block (4) is fixedly connected to the air pipe (1); be provided with in buffer block (4) and be used for slowing down the component that slows down of air flow, accomodate chamber (2) and offer between tuber pipe (1) outer wall and inner wall, through-hole (3) are round hole structure, through-hole (3) circumference equidistance sets up on tuber pipe (1) inner wall, buffer block (4) are cavity rectangle massive structure, slow down the component including fixed guide slide rail (5) that set up on buffer block (4) inner wall, the cover that slides on guide slide rail (5) is equipped with ventilation board (6), fixedly between tuber pipe (1) and ventilation board (6) be provided with four attenuator (7), the welding has spring (8) between tuber pipe (1) and ventilation board (6).

2. The noise reduction structure of a silent diesel generator set according to claim 1, wherein the ventilation board (6) is of a square platy structure, and a plurality of vent holes which are arranged in equal sequence are formed in the ventilation board (6).

3. The noise reduction structure of the silent diesel generator set according to claim 2, wherein the spring (8) is movably sleeved on the damper (7), and the damper (7) is arranged at four corner positions of the ventilation plate (6).