CN210919583U

CN210919583U - Noise eliminator for blower

Info

Publication number: CN210919583U
Application number: CN201921880574.7U
Authority: CN
Inventors: 蔡昌盛; 闫伟; 高殿付
Original assignee: Shenyang Junsheng Machinery Manufacturing Co ltd
Current assignee: Shenyang Junsheng Machinery Manufacturing Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-03
Anticipated expiration: 2029-11-04

Abstract

The utility model relates to a noise eliminator for on air-blower, the inside noise elimination subassembly that is equipped with of casing, the casing below is equipped with the part of admitting air, and the casing top is equipped with the venthole, and the inside multilayer grid board that is equipped with of net cover is equipped with the reinforcing plate between net cover and the casing, and the cushion chamber is connected to the casing of noise elimination subassembly below, and the cushion chamber is venturi, is equipped with the intake pipe below relatively. The utility model is provided with the air inlet pipes relatively, the two air flows collide with each other, the kinetic energy of the air is consumed, and the flow rate of the air is reduced; the buffer cavity is a Venturi tube, the Venturi tube forms a negative pressure area in the cavity, the negative pressure area generates suction, gas changes the flow direction, and enters the silencing assembly, so that the silencing effect is good.

Description

Noise eliminator for blower

Technical Field

The utility model relates to a noise eliminator technical field, specifically speaking relate to a noise eliminator for on air-blower.

Background

Silencers are a device that prevents sound transmission while allowing airflow through, and are an important measure for eliminating aerodynamic noise. The silencer is a device which is arranged on an airflow channel or an air inlet and exhaust system of air power equipment (such as air blowers, air compressors, exhaust ports of boilers, generators, water pumps and other equipment with high noise at exhaust ports) and is used for reducing noise.

If the gas directly enters the silencing device, the silencing effect is not good because of the high gas flow speed. If the gas enters the muffler through the elbow, the gas flow direction changes, which may reduce the gas flow rate, but the impact of the high velocity gas on the pipe is too great and the reduction of the gas flow rate is not ideal.

Disclosure of Invention

An object of the utility model is to provide a novel noise eliminator for on air-blower, it improves intake pipe department structure, and two strands of air currents collide and consume the gas flow kinetic energy, reduce the gas velocity of flow.

In order to solve the above problem, the utility model discloses a technical scheme as follows:

a noise eliminator for on air-blower, which comprises a housin, the part of admitting air, the noise elimination subassembly, the venthole, the inside noise elimination subassembly that is equipped with of casing, the casing below is equipped with the part of admitting air, the casing top is equipped with the venthole, the noise elimination subassembly includes multilayer grid board, the net covers, the inside multilayer grid board that is equipped with of net cover, be equipped with the reinforcing plate between net cover and the casing, a serial communication port, the part of admitting air includes intake pipe, cushion chamber, the cushion chamber is connected to the casing of noise elimination subassembly below, the cushion chamber is venturi, the cushion chamber below is equipped with.

Further, the reinforcing plate comprises an upper plate and a side plate, the upper plate is crossed and connected, the upper plate is arranged at the top of the grid cover, the side plate is arranged at the side part of the grid cover, and the top of the side plate is connected with the end part of the upper plate.

Furthermore, a rain hat is arranged above the air outlet, and noise adsorption cotton is arranged on the inner side of the rain hat.

Furthermore, the grid plates are coated with a titanium dioxide coating.

Compared with the prior art, the utility model has the beneficial characteristics that:

the air inlet pipes are oppositely arranged below the buffer cavity, air relatively enters the lower part of the buffer cavity at a high speed, two air flows collide with each other, the kinetic energy of the air is consumed, and the flow rate of the air is reduced;

the air inlet part comprises an air inlet pipe and a buffer cavity, the shell below the silencing assembly is connected with the buffer cavity, the buffer cavity is a Venturi tube, the Venturi tube forms a negative pressure area in the cavity, after two air streams collide with each other, the negative pressure area generates suction, the flow direction of the air is changed, and the air enters the silencing assembly;

the utility model discloses can consume gaseous kinetic energy at gaseous part of admitting air, reduce the gas flow rate, under the stopping of inside grid board, the gas flow rate further reduces, therefore noise elimination effect is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a muffler device for a blower according to the present invention;

FIG. 2 is a structural diagram of the muffler assembly of the present invention;

FIG. 3 is a view of the internal structure of the muffler assembly of the present invention;

reference numerals: the air conditioner comprises a shell-1, an air inlet part-2, an air inlet pipe-21, a buffer cavity-22, a silencing component-3, a grating plate-31, a grid cover-32, an air outlet hole-4, an upper plate-51, a side plate-52 and a rain-proof cap-6.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to the description, the attached

drawings

1, 2 and 3 show:

a noise eliminator for on air-blower, which comprises a housin 1, admit air the part 2, noise elimination subassembly 3,

venthole

4, 1 inside noise elimination subassembly 3 that is equipped with of casing, 1 below of casing is equipped with the part 2 that admits air, 1 top of casing is equipped with venthole 4, noise elimination subassembly includes multilayer grid plate 31, net cover 32, the inside multilayer grid plate 31 that is equipped with of net cover 32, multilayer grid plate is from last to arranging down, the grid plate diameter is 96cm, upper and lower adjacent grid plate interval 10cm, be equipped with reinforcing plate 5 between net cover 32 and the casing 1, the reinforcing plate is used for strengthening the support intensity of net cover, admit air the part 2 and include intake pipe 21, cushion chamber 22, the cushion chamber is connected to the casing of noise elimination subassembly below, cushion chamber 22 is venturi, the cushion chamber below is equipped. The lower part of the buffer cavity is oppositely provided with an air inlet pipe, air relatively enters the buffer cavity at a high speed, the two air flows collide with each other, the kinetic energy of the air is consumed, and the flow rate of the air is reduced; the air inlet part comprises an air inlet pipe and a buffer cavity, the shell below the noise elimination assembly is connected with the buffer cavity, the buffer cavity is a Venturi tube, the Venturi tube forms a negative pressure area in the cavity, after two gas streams collide with each other, the negative pressure area generates suction, the gas changes the flow direction, and the gas enters the noise elimination assembly.

Referring to fig. 2 in the specification, further, the reinforcing plate 5 includes an upper plate 51 and a side plate 52, the upper plate 51 is crossed, the upper plate 51 is disposed on the top of the grid cover 32, the side plate 52 is disposed on the side of the grid cover 32, and the top of the side plate 52 is connected to the end of the upper plate 51. The reinforcing plate plays a role in supporting and reinforcing the radial and axial directions of the grid cover.

Referring to the attached figure 1 of the specification, further, a rain hat 6 is arranged above the air outlet 4, noise adsorption cotton is arranged on the inner side of the rain hat 6, and the noise adsorption cotton is made of felt. The rain-proof cap can prevent rainwater from entering the interior of the noise eliminator, and the noise adsorption cotton on the inner layer of the rain-proof cap has certain adsorption effect on noise

Further, the grid plate 31 is coated with a titanium dioxide coating, and the titanium dioxide has a certain purification effect on polluted organic matters in the gas.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A noise eliminator for on air-blower, which comprises a housin, the part of admitting air, the noise elimination subassembly, the venthole, the inside noise elimination subassembly that is equipped with of casing, the casing below is equipped with the part of admitting air, the casing top is equipped with the venthole, the noise elimination subassembly includes multilayer grid board, the net covers, the inside multilayer grid board that is equipped with of net cover, be equipped with the reinforcing plate between net cover and the casing, a serial communication port, the part of admitting air includes intake pipe, cushion chamber, the cushion chamber is connected to the casing of noise elimination subassembly below, the cushion chamber is venturi, the cushion chamber below is equipped with.

2. The muffling device for a blower of claim 1, wherein the reinforcing plate comprises an upper plate and a side plate, the upper plate is intersected with the cross, the upper plate is disposed on the top of the mesh cover, the side plate is disposed on the side of the mesh cover, and the top of the side plate is connected to the end of the upper plate.

3. The muffling device for a blower according to claim 1, wherein a rain cap is disposed above the air outlet, and noise-absorbing cotton is disposed inside the rain cap.

4. The muffling device of claim 1, wherein the grid plates are coated with a titanium dioxide coating.