CN201129322Y

CN201129322Y - Blower fan silencing device

Info

Publication number: CN201129322Y
Application number: CNU2007200260362U
Authority: CN
Inventors: 牟寿义
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-24
Filing date: 2007-08-24
Publication date: 2008-10-08
Anticipated expiration: 2017-08-24

Abstract

The utility model belongs to a noise reducer, in particular relating to a fan silencer which comprises an exhaust funnel which is mounted at the position of a wind outlet of the fan, one end of the exhaust funnel is mounted at the position of a fan opening, and the other end is equipped with an exhaust pipe extending in water. The fan silencer has the advantages of low manufacturing cost, and reducing the noise of the fan efficiently.

Description

The blower fan silencer

Technical field

The utility model belongs to denoising device, is specifically related to a kind of blower fan silencer.

Background technique

Blower fan is as the chief component of air cooling system, be widely used in the colliery, in the enterprises such as iron ore, but the blower fan of prior art exists the big shortcoming of noise, especially volume is little, the blast height, the wind at the exhaust outlet place of the blower fan that air quantity is big is made an uproar especially big, the decibel that wind is made an uproar can reach 90～120, influence to surrounding enviroment is very big, annual all have a lot of people to make impaired hearing because of the noise of blower fan, form the noise occupation disease, the annual expense of cost about 1,000 hundred million that needs of country is treated the noise occupation disease, for this reason, the wind that how to reduce the exhaust outlet place is made an uproar and is just become those skilled in the art of the present technique's research emphasis.

Summary of the invention

The purpose of this utility model provide a kind of simple in structure, effectively reduce the blower fan silencer that blower fan wind is made an uproar.

The utility model is achieved through the following technical solutions:

Be a kind of blower fan silencer, comprise the exhaust pipe at the exhaust outlet place that is installed in blower fan, exhaust pipe one end is installed in blower fan mouth place, and the other end is provided with the outlet pipe that feeds in the water.

In order further to reduce the blast in air port, the caliber of outlet pipe increases gradually.

In order to prevent that the underwater sound is too big, the end of outlet pipe is provided with the exhaust pipe of a hollow, is distributed with a plurality of exhaust ports on the stack shell of exhaust pipe.

The utlity model has following advantage:

1) the utility model is simple in structure, fabricating cost is low;

2) wind of fan outlet is incorporated in the water by outlet pipe, disperses to discharge by a plurality of exhaust ports on the exhaust pipe, has

Imitating the wind that has reduced the air port makes an uproar.

Through experiment, use the utility model, can reduce about 80% wind and make an uproar, can effectively reduce the generation of noise occupation disease, be country's saving associated treatment expense about 1,000 hundred million.

Description of drawings

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

The left view that Fig. 2 is a gas collecting jar with ground-on cover plate of the present utility model when circular;

Left view when Fig. 3 is square for gas collecting jar with ground-on cover plate of the present utility model.

As shown in drawings: 1 gas collecting jar with ground-on cover plate, 2 outlet pipes, 3 exhaust pipes, 4 exhaust ports.

Embodiment

As shown in drawings, gas collecting jar with ground-on cover plate 1 both ends open, right openings is provided with outlet pipe 2, and the end of outlet pipe 2 is provided with exhaust pipe 3, is distributed with a plurality of exhaust ports 4 on the exhaust pipe 3.

When the utility model uses, use fastening piece that gas collecting jar with ground-on cover plate 1 is installed in the exhaust outlet place of blower fan, exhaust pipe 3 is put into water, when blower fan uses, the wind at exhaust outlet place is by entering in the water that a plurality of exhaust ports on the exhaust pipe 34 disperse, and the wind that promptly can effectively reduce out exhaust outlet is made an uproar.

The utility model is not limited to above embodiment, in some occasion, for reducing cost, exhaust pipe can omit need not, the caliber of outlet pipe also can increase gradually, strengthens the effect that reduces blast.

Claims

1. blower fan silencer is characterized in that comprising the gas collecting jar with ground-on cover plate at the exhaust outlet place that is installed in blower fan, and gas collecting jar with ground-on cover plate both ends open, an end are installed in blower fan mouth place, and the other end is equipped with the outlet pipe that feeds in the water.

2. blower fan silencer according to claim 1 is characterized in that the caliber of outlet pipe increases gradually.

3. blower fan silencer according to claim 2 is characterized in that the end of outlet pipe is provided with the exhaust pipe of a hollow, is distributed with a plurality of exhaust ports on the stack shell of exhaust pipe.