DE8506097U1 - MUFFLER FOR WATER DRAINAGE DEVICE - Google Patents

Description

J ι './ .. ··;, '. ''. '» Gi-DDEHFJAuVEi-! STREET Xv

D ¹ R ..- ING BODO THIELKING '

DIPL, - 'NG. OTTO ELBERTZHAGEN ΐ ■ r ™? - £ 'ί "Ύ'" ^

POST CHECK ACCOUNT HAN iO9: 93-30Γ-ANWALTSAKIf 13 908

Date 1. March 1985

Applicant: Jung Pumpen GmbH, Industriestraße 4-6, 4803 Steinhagen

Silencer for sewage pumping equipment

The innovation relates to a silencer for an expansion line of a pneumatic sewage conveyor.

In the case of pneumatic sewage conveying systems, large volumes of compressed air must be depressurized to normal pressure in a short time due to operational reasons. Blowing off via a relief line can only be carried out without extremely unpleasant noise if the relief process takes a relatively long time. In the case of such pneumatic sewage conveying devices or sewage lifting systems, however, the relaxation time should be as short as possible.

The innovation is based on the task of creating a simply structured Silencer for the compressed air expansion line of a pneuir. ! tables To create wastewater conveyor.

The solution to this problem takes place in that he has a central tube has, the cross section of which is reduced at its end opposite the entry point and that of two cylindrical ends closed wall parts is surrounded, and that both in the walls of the central tube and in the walls of the cylindrical wall parts outflow openings are provided.

13 908 · .. ■ ¹ ^ March 1, 1985

In a preferred embodiment, at the end of the central j Tube provided a cap with a discharge opening. j

It has proven to be useful / that the cylindrical [

ι Wall parts on their end faces via concentric spacers |

rings tightly connected to one another or to the central tube j

are. j

In a preferred embodiment, the outflow openings are genes in the central tube or in the cylindrical walls are each arranged offset from one another in the longitudinal axis direction. .

j It has proven to be particularly advantageous that the sound-j damper consists at least essentially of plastic. j

i Furthermore, it is proposed according to the innovation that the muffler; has a connection thread for the relief line at its inlet opening. ;

In a preferred development of the innovation, the j Total cross-section of the outflow openings from the inside to the outside

to. j

'I.

With the silencer according to the innovation, a simple and | effective sound absorption in the special field of application j

possible. I.

A preferred embodiment of the innovation I described in detail with reference to the drawing. ;

ι; The drawing shows a schematic longitudinal section through

a silencer.

ι A central tube 1 has an inlet opening 1a with j

an internal connection thread 1c for the not shown
: put relaxation line. On the opposite side of the inlet opening;

13 908 March 1, 1985

At the end lying end there is provided a cap 4 which extends over the central tube 1 and which has an outflow opening 4a.

\ Concentric to the central tube 1 are two cylindrical ones

j wall parts 2 and 3 provided, which over concentric

; Spacer rings 5, 6 and 7 with one another or with the central tube are connected.

! In the central tube 1 there are outlet openings 1b all around. Corresponding recesses 2a and 3d are in the cylindrical wall parts 2 and 3 · provided.

The outflow openings 2a are opposite the outflow openings in the adjacent muffler parts, namely offset from 1b ι and 3a in the longitudinal axis direction.

The parts made of plastic can be connected to one another in any conventional manner, for example glued or pressed.

Claims (8)

PATENTANWÄLTE \ \ * * '' '' · .. * * .. '' * · · * · .gÄdderbaumer strasse • D-48OO BIELEFELD DIPL.- ING. BODO THIELKING DIPL-ING. OTTO ELBERTZHAGEN ί ^ ° Ν ^ 2606 ^ + "313 TELEX: 9 32 Ο59 anwlt d POST CHECK ACCOUNT: HAN 3091 93-3Ο2 LEGAL FILES: 13 Date: March 1, 1985 Claims for protection; 1. Silencer for compressed air expansion line of a pneumatic Waste water conveying device, characterized in that it has a central tube (1), the cross section of which is on its end opposite the entry point (1a) is reduced is and is surrounded by two cylindrical wall parts (2; 3) closed at the ends and that both in the walls of the central tube (1) as well as in the walls of the cylindrical wall parts (2; 3) outflow openings (1b; 2a; 3a) are provided. 2. Silencer according to claim 1, characterized in that at the end of the central tube (1) a cap (4) with an outflow opening (4a) is provided. 3. Silencer according to claim 1 or 2, characterized in that the cylindrical wall parts (2; 3) on their end faces are tightly connected to one another or to the central tube (1) via concentric spacer rings (5; 6; 7). 4. Silencer according to one or more of claims 1 to 3, characterized in that that the outflow openings (1b; 2a; 3a) in the central tube (1) or in the cylindrical walls (2; 3) each in a longitudinal axis are arranged offset from one another. 5. Silencer according to one or more of claims 1 to 4, characterized in that it consists at least essentially of plastic. 908 * / "March 1, 1985 'j 6. Silencer according to one or more of claims 1 to 5j ft ι j fe, characterized by | I, ι j that it has a connecting thread at its inlet opening (1a) ί j (1c) for the relief line. | ; 'ί 7. Silencer according to one or more of claims 1 to 6; characterized in that ί daö the total cross-section of the outflow openings (1b; 2a; 3a)
from the central tube (1) increases to the outside. ! 8. Silencer according to one or more of claims 1 to 7, characterized in that that the number of outflow openings (1b; 2a; 3a) from the I central tube (1) to the first surrounding wall part (2) i and the surrounding further wall part (3) increases. ! i I.