DE3913283A1

DE3913283A1 - The hydraulic silencer (sound-absorber) with filter effect

Info

Publication number: DE3913283A1
Application number: DE3913283A
Authority: DE
Inventors: Lutz Schulz
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-04-22
Filing date: 1989-04-22
Publication date: 1989-10-12

Abstract

Gases which are still under pressure and are released into the environment after the working cycle, such as the exhaust air of compressed-air devices or exhaust emissions, expand to cause sound waves, that is to say noise. The hydraulic silencer provides optimum sound insulation in conjunction with minimum loss of energy. The gases which are still under pressure are guided into a liquid where they rise by virtue of the static lift in the liquid. The expansion is accomplished upstream of and in the liquid, and decompressed gases can therefore be discharged into the environment. Application is possible wherever compressed air units are used and the aim is to remove the offending noise. Retrofitting is possible, and this hydraulic silencer can be provided as standard by the manufacturers of compressed air devices. A further field of application is internal combustion engines. Apart from optimum sound insulation, use can be made here of the filter effect which arises as the exhaust gases traverse the liquid.

Description

1. The hydro silencer with filter effect

Bisherige Schalldämpfer bestehen aus festem oder porösem Material. Mit dem Nachteil, um so größer die Schalldämmung, um so größer der Rückstau und um so größer der Energieverlust. Was für Druckluftgeräte bedeutet, entweder sie arbeiten laut, mit einem hohem Wirkungsgrad oder leise mit einem geringem Wirkungsgrad.Existing silencers consist of solid or porous material. With the Disadvantage, the greater the sound insulation, the greater the back pressure and by the greater the energy loss. What compressed air equipment means, either it work loudly, with high efficiency or quietly with low Efficiency.

Dieses Problem wird mit dem Hydro-Schalldämpfer gelöst. Denn der Rückstau ent spricht nur der Energiemenge, welche für die Verdrängung der Flüssigkeit, be nötigt wird und diese ist im Vergleich zu bisherigen minimal.This problem is solved with the hydraulic silencer. Because the backwater ent speaks only the amount of energy required for the displacement of the liquid is required and this is minimal compared to previous ones.

Nachvollziehen läßt sich diese Problemlösung, in der Form, daß man einen Schlauch mit ausströmender Druckluft, in ein mit Wasser gefülltes Gefäß taucht oder Gerät bezogen, die Abluft, eines in Betrieb befindlichen Druck luftgerätes, mittels Schlauch auffängt, und diesen ebenfalls in Wasser taucht.This problem solution can be understood in the form that one Hose with compressed air flowing out into a container filled with water immersed or related to the exhaust air, an operating pressure air device, catches with a hose, and this also immersed in water.

Eingesetzt werden kann der Hydro-Schalldämpfer überall dort, wo Druckluftge räte im Einsatz sind und die entstehende Lärmbelästigung beseitigt werden soll. Wobei ein nachrüsten kein Problem ist. Und der Filtereffekt, bei diesem Anwendungsbereich, keine Rolle spielt. The hydraulic silencer can be used wherever compressed air are in use and the resulting noise pollution is eliminated should. Retrofitting is not a problem. And the filter effect on this one Scope, doesn't matter.

2. The hydro silencer with filter effect Application on the diesel engine

Die Abgase werden in eine Flüssigkeit geleitet Ergebnis:The exhaust gases are led into a liquid Result:

1. Absolute sound insulation How it works, like compressed air sound insulation.
2. Filtration of environmentally harmful solids How it works, like an oil bath air filter.

Problem:
hohe TemperaturentwicklungProblem:
high temperature development

Lösung:
Durch Flüssigkeit, mit hohem Siedepunkt, geringer Verdunstung, welche nicht oder schlecht brennbar ist.Solution:
Through liquid, with a high boiling point, low evaporation, which is not or poorly flammable.

Ein entgegenkommen, an diese Ansprüche, durch Kühlung der Abgase. To meet these demands by cooling the exhaust gases.

3. The hydro silencer with filter effect Use on petrol engines

Das gleiche Prinzip wie beim DieselmotorThe same principle as with the diesel engine

Ergebnis:Result:

1. Absolute sound insulation.
2. Filtration of appropriate pollutants?

Nur möglich, wenn Chemiker, eine entsprechend aufnahmefähige Flüssigkeit, für die entsprechenden Schadstoffe finden, welche gleichzeitig, den hohen An forderungen, in bezug auf die Temperaturwicklung, gerecht wird.Only possible if chemists, a correspondingly absorbable liquid, for find the corresponding pollutants, which at the same time, the high requirements with regard to temperature winding.

Claims

The hydro silencer with filter effect

For those who are released into the environment after the work, still under pressure standing gases. So for the exhaust air in compressed air devices or for exhaust gases.

It is characterized by the fact that the gases, which are still under pressure, are led into a liquid, displacing them by their own pressure, by the static buoyancy, rising in the liquid, expanding in front of and in the liquid.

With the result, optimal sound insulation with minimal energy loss.

According to its area of application, in addition to sound insulation, the Filter effect can be used. Which when penetrating the gases through which Liquid, arises. How it works, like the oil bath air filter. Where ent corresponding to what is to be filtered out, a correspondingly receptive liquid must be taken.