CN2311611Y

CN2311611Y - Cyclotron muffler

Info

Publication number: CN2311611Y
Application number: CN 97224642
Authority: CN
Inventors: 寿国伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-22
Filing date: 1997-08-22
Publication date: 1999-03-24
Anticipated expiration: 2007-08-22

Abstract

The utility model relates to an airstream muffler for a machine or an engine, comprising a housing with an air inlet pipe and an air outlet pipe. The utility model is characterized in that the housing is of a cylinder shape, the air inlet pipe is positioned in the tangential direction of the housing in a cylinder shape, and the air outlet pipe is arranged on an axial line of the housing in a cylinder shape. The utility model can not only carry out sound eliminating by the elasticity of gas in the housing, but also can consume self-energy by the high-speed rotation of the gas and can prevent sound wave from scattering towards the center. Thus, the gas exhausted from the air outlet pipe positioned on the axial line of the housing can maximally eliminate sound; compared with the existing mufflers, the utility model has good sound eliminating effect, and has the advantages of simple structure and convenient manufacture.

Description

The Cyclotron silencing apparatus

The utility model is the silencer for gas flow that belongs to general machine or motor.It can be used for the various types of vehicles, tractor and the various process equipment that are used as power with fuel oil, and the silencing apparatus during exhausting air such as steam boiler, thermoelectricity plant.

Existing silencing apparatus can see from Fig. 5 that it contains a housing 2, affixed suction tude 1 and steam outlet pipe 3 on relative two walls of housing.Its shortcoming is the gas that enters silencing apparatus, only can lean on elasticity consumed energy, the removal noise of gas in its housing itself, so its noise elimination effect is relatively poor.

The purpose of this utility model is to overcome the shortcoming that exists in the above-mentioned prior art, a kind of Cyclotron silencing apparatus of eliminating the noise effective is provided, and makes it have characteristics such as simple in structure, easily manufactured, that cost is low.

The utility model Cyclotron silencing apparatus includes a housing of bringing tracheae and steam outlet pipe into, and its feature is: housing is cylindrical, and the suction tude on it is positioned at tangential, the steam outlet pipe of cylindrical shell body wall on the shaft axis of cylindrical shell.

The utility model silencing apparatus is when having a steam outlet pipe and a suction tude, the entrance point of steam outlet pipe in housing preferably lays respectively at the two ends of housing with suction tude, to increase both distances, the gas that enters housing is abated the noise to greatest extent, and leave the gap of air inlet between the end wall of the entrance point of steam outlet pipe with housing.

Steam outlet pipe in the utility model silencing apparatus can be a three-way pipe, and wherein two pipes linearly are positioned on the shaft axis of housing, and another Guan Ze of threeway is fixed on the cylinder wall of housing, leaves the gap of air inlet between the end wall of the entrance point of steam outlet pipe with housing.

The suction tude of the utility model silencing apparatus can exceed one, and they are fixed in their parallel connections on the cylinder shell wall by connecting pipe one more.

The gap length that is stayed between the end wall of steam outlet pipe entrance point with housing in the utility model silencing apparatus is preferably with 1/4 equivalence of steam outlet pipe internal diameter.

Below will be by embodiment, and the contrast accompanying drawing, the utility model is further described below.Have in the accompanying drawing:

Fig. 1 is the utility model silencing apparatus first embodiment's a plan view;

Fig. 2 is the A-A sectional view among Fig. 1;

Fig. 3 is the utility model second embodiment's a plan view;

Fig. 4 is the B-B sectional view among Fig. 3;

Fig. 5 is existing correlation technique structure diagram.

From Fig. 1 and Fig. 2, can see the utility model first embodiment's structure.Its housing 2 is cylindrical, suction tude 1 is fixed in the tangent direction of cylinder shell wall, steam outlet pipe 3 is on the shaft axis of cylindrical shell, and the entrance point 31 of steam outlet pipe lays respectively at the upper/lower terminal of housing 2 with suction tude 1, the entrance point of steam outlet pipe is with leaving gap a, to form gas enters steam outlet pipe from shell space air-flow path between the upper end wall.The overhanging end of steam outlet pipe wears on the lower end surface that is fixed in housing, has two bump contacted chips 4 on its entrance point 31 in housing, and this end is fixed in the upper-end surface, trembles in gas shock to prevent steam outlet pipe.

The utility model Cyclotron silencing apparatus is connected with the engine emission pipe with screw by the flange of air inlet pipe end.Gas to be eliminated the noise enters silencing apparatus from suction tude 1, and owing to this pipe is installed in the tangent direction of housing, so gas circles round at a high speed along columniform shell wall in housing.Gas constantly consumes the energy of self and stops sound wave to the center scattering in the process of circling round, and weakens the gas of energy at last and shifts to the center; Enter steam outlet pipe 3 by gap a, discharge silencing apparatus at this.

The utility model second embodiment can see from Fig. 3 and Fig. 4.Its steam outlet pipe is a three-way pipe, and wherein three-way pipe two pipes linearly are positioned on the shaft axis of housing, and by the connecting sheet on the entrance point 31 4 it is fixed on the upper/lower terminal face; Another pipe 32 of three-way pipe is fixed on the cylindrical wall of housing.Two entrance points of steam outlet pipe are with the gap a that leaves respectively between the upper and lower end wall of housing, so that the gas in the housing can enter steam outlet pipe 3 from two entrance points 31 respectively, and from managing 32 discharge silencing apparatuss.

Suction tude 1 among the embodiment two has two, and they are installed in parallel tangential at the cylinder shell wall by t-joint 11.

But the gap a value among two embodiments of the utility model is 1/4 value of bore, and this value can make the air-flow path cross section of housing consistent with the steam outlet pipe cross section, and the interior air-flow of silencing apparatus is unobstructed, resistance is little thereby make.

The utility model has the advantages that: 1) the Cyclotron silencer does not only depend on the elasticity of gas in the housing to eliminate the noise, But also exhaust self-energy and stop sound wave to the center scattering with the high speed convolution of gas, therefore from being positioned at housing The gas of discharging in the escape pipe on the axial line can be eliminated noise to greatest extent, so the utility model silencer Good muffling effect; 2) can to adopt three-way pipe be escape pipe to the utility model silencer, and this makes escape pipe have two The entrance point of individual symmetry, but automotive resistance enters the noise of escape pipe, prevents that further the interior noise of housing is from going out Tracheae is discharged, from and improved erasure effect; 3) the escape pipe entrance point exists with the gap between the housing end face Value escape pipe internal diameter 1/4 after, the unobstructed and gas-flow resistance of silencer air-flow is reduced; 4) this practicality is new The type acoustic wave filter structure is simple, easily manufactured, so cost is lower.

Claims

1, a kind ofly include a Cyclotron silencing apparatus of bringing the housing (2) of tracheae (1) and steam outlet pipe (3) into, it is characterized in that: housing is cylindrical, and tangential, steam outlet pipe that its suction tude is positioned at the cylinder shell wall are positioned on the shaft axis of cylindrical shell.

2, silencing apparatus as claimed in claim 1 is characterized in that: the entrance point (31) of said steam outlet pipe in housing lays respectively at the two ends of housing with suction tude, and the entrance point of steam outlet pipe is with the gap a that leaves air inlet between the housing end wall.

3, silencing apparatus as claimed in claim 1, it is characterized in that: said steam outlet pipe (3) is a three-way pipe, wherein two pipes linearly are positioned on the shaft axis of housing, its mouth of pipe (31) is an entrance point, and with the gap a that leaves air inlet between the end wall, another pipe (32) of three-way pipe is fixed on the cylinder wall of housing.

4, silencing apparatus as claimed in claim 1 is characterized in that: said suction tude (1) can be more than one, and they are fixed in the tangential of housing cylinder shell wall by connecting pipe (11) parallel connection more.

5, as claim 1 or 2 or 3 or 4 described silencing apparatuss, it is characterized in that: the entrance point of said steam outlet pipe is with 1/4 equivalence of the gap a between the housing end wall with the steam outlet pipe internal diameter.