CN202545373U

CN202545373U - Waste-gas-discharge outlet silencer for water-ring vacuum pump

Info

Publication number: CN202545373U
Application number: CN2011205535870U
Authority: CN
Inventors: 邓志刚; 陈章然
Original assignee: JOINT-MAG Co Ltd
Current assignee: JOINT-MAG Co Ltd
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2012-11-21
Anticipated expiration: 2021-12-27

Abstract

The utility model provides a waste-gas-discharge outlet silencer for a water-ring vacuum pump. The silencer is characterized by comprising a hollow shell, wherein the side wall of the upper half part of the hollow shell is connected with a sound attenuation pipe and an air inlet; the sound attenuation pipe is a hollow pipe, and a plurality of parallel and axial sound attenuation hole channels are arranged in the pipe wall of the hollow pipe; the side wall of the lower half part of the hollow shell is connected with a water draining outlet and a sewage draining outlet; and the sewage draining outlet is lower than the water draining outlet. The air inlet of the silencer is connected to a waste gas discharge outlet of the water-ring vacuum pump, and waste gas and sewage carried by the waste gas are buffered when passing through the shell, so that the noise is reduced; and then the sewage is discharged from the water draining outlet and the sewage draining outlet of the lower half part, the waste gas passes through the sound attenuation pipe of the upper half part, and airflow noise is absorbed by the hollow hole channels in the pipe wall, so that the noise is further reduced.

Description

Nash hytor Waste gas outlet silencing apparatus

Technical field

The utility model belongs to a kind of water ring vaccum pump accessory, relates in particular to a kind of silencing apparatus of water ring vaccum pump.

Background technique

Nash hytor is that blade-carrying impeller off-centre is installed in the pump case of dress water, and impeller rotates in pump case and forms water ring, and its effect is equivalent to a piston, relies on the change volume to deflate and forms the vacuum pump of vacuum.

In industrial many manufacturing processs, like vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum conditioning and vacuum outgas etc., Nash hytor is widely used.

But Nash hytor toxic emission outlet noise is very big, and environment is produced harmful effect.

The model utility content

The utility model provides a kind of Nash hytor Waste gas outlet silencing apparatus, and its purpose solves the shortcoming that existing technology exists, and a kind of device that reduces Nash hytor Waste gas outlet noise is provided.

The utility model solves the technological scheme that its technical problem adopted:

A kind of Nash hytor Waste gas outlet silencing apparatus; It is characterized in that: comprise hollow casing; The sidewall of upper half part of hollow casing is connected with hush pipe and suction port, and said hush pipe is a hollow tube, is provided with some parallel axial noise reduction ducts in the tube wall of hollow tube; The sidewall of lower half portion of hollow casing is connected with drain opening and sewage draining exit, and the position of sewage draining exit is lower than drain opening.

The usefulness of the utility model is:

The suction port of the device of the utility model connects on the Waste gas outlet that is located at Nash hytor; Waste gas with and the waste water contamination of carrying obtain buffering through housing; Reduced noise, waste water contamination is discharged through the drain opening and the sewage draining exit of lower half portion again, and waste gas is through the hush pipe of upper half part; Its pneumatic noise is absorbed by the hollow duct in the tube wall, thereby further reduces noise.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the schematic representation of the utility model;

Fig. 2 is the schematic cross-section of the utility model hush pipe.

Embodiment

As shown in Figure 1; The utility model comprises hollow casing 1, and the sidewall of upper half part of hollow casing 1 is connected with hush pipe 2 and suction port 3, and is as shown in Figure 2; Hush pipe 2 is a hollow tube, is provided with some parallel axial noise reduction ducts 22 in the tube wall 21 of hush pipe 2; The sidewall of lower half portion of hollow casing 1 is connected with drain opening 4 and sewage draining exit 5, and the position of sewage draining exit 5 is lower than drain opening 4.

During use; Suction port 3 is connected Waste gas outlet 7 places of Nash hytor 6, the waste gas that Nash hytor 6 is discharged with and the waste water contamination of carrying get into housing 1, waste water contamination descends and discharges with sewage draining exit 5 through the drain opening 4 of lower half portion; The position of sewage draining exit 5 is lower than drain opening 4 and helps dirt discharge earlier; Discharge behind the waste water, waste gas is through the hush pipe 2 of upper half part, and its pneumatic noise is absorbed by the hollow duct 22 in the tube wall 21.This Nash hytor Waste gas outlet acoustic wave filter structure is simple, easy processing, and how many volumes is set according to discharge amount of exhaust gas, and manufacture cost is not high, and it is effective to abate the noise.

Claims

1. Nash hytor Waste gas outlet silencing apparatus; It is characterized in that: comprise hollow casing; The sidewall of upper half part of hollow casing is connected with hush pipe and suction port, and said hush pipe is a hollow tube, is provided with some parallel axial noise reduction ducts in the tube wall of hollow tube; The sidewall of lower half portion of hollow casing is connected with drain opening and sewage draining exit, and the position of sewage draining exit is lower than drain opening.