SEWAGE SYSTEM

Abstract: Sewage system comprised of a collector pipe (6) with one or more house connections and to which collector pipe (6) an air compressor and/or a vacuum pump is connected, wherein a house connection is comprised of a collecting gully (2) with a connection for the house sewer pipe (1), and which gully (2) at its bottom side is provided with a valve (3), which may be operated under the control of a level switch (4) arranged in the gully, while the valve (3) at the discharge side is connected to the collected pipe (6), which at that place is provided with a bend (5) situated in a vertical plane, to the middle part of which the valve (3) is connected and from which both the sideways running bend parts run upwards up to a height below the valve (3).

Description: Sewage system. The invention relates to a sewage system, comprised of a collector pipe with one or more house connections, and to which collector pipe an air compressor and/or a vacuum pump is connected. Such a sewage system is known and is applied more in particular there, where the house connections to the collector pipe are located relatively far from each other, as this may be the case outside the built-up area. The drawback of the mere application of a compressor and/or a vacuum pump lies in the circumstance, that the consumption of energy is high, as in substance air is thereby circulated or sucked through the collector pipe, without this helping along in an efficient manner the flow of the sewage water in the pipe. The invention aims to obviate this drawback of the known sewage system. The sewage system according to the invention thereto is characterized, that a house connection is comprised of a collecting gully with a connection for the house sewer pipe, and wherein the gully at its bottom side is provided with a valve, which may be operated under the control of a level switch arranged in the gully, while the valve at the discharge side is connected to the collector pipe. With the invented sewage system the supplied sewage water of the house connection is collected in the collecting gully to be discharged at one go in the collector pipe at the reaching of a maximum height of the sewage water within the gully, by which the sewage water in the collector pipe may be pushed away or sucked in in a more efficient manner by respectively the compressor or the vacuum pump. Thus it is not required with the sewage system according to the invention that the compressor and/or the vacuum pu p are continuously in operation, and these can be put into operation solely and directly after the discharge of the sewage water in the gully into the collector pipe, by which an important saving of energy is obtained. S a favourable way according to a further characteristic of the sewage system according to the invention, the collector pipe at the place of a house connection is provided with a bend situated in a vertical plane, to the middle part of which the valve is connected and from which both the sideways running bend parts run upwards up to a height below the valve. In a favourable way the bend according to a further characteristic of the invented sewage system further has a capacity which is sufficient to take in the maximum content of sewage water in the collecting gully. Through the application of the bends near the house connections it is achieved, that after the discharge of the sewage water out of the collecting gullies, the collector pipe near the bends is completely shut off by the sewage water, by which at the pushing away or sucking in of the sewage water in the collector pipe the energy losses through air leakages in the collector pipe above the sewage water are substantially diminished. In a favourable embodiment of the sewage system according to the invention, the level switches of several, to the collector pipe connected collecting gullies are switched parallel, such, that at the change-over of a level switch at the reaching of the maximum sewage water height within a gully, the valves of the several gullies are opened to overflew the sewage water quantities present in these gullies simaltaneously in the bends provided belcw the gullies. Tϊie invention will now be described, by way of example, with reference to the accompanying drawings. Figure 1 shows a representation of a collecting gully with a connection to a collector pipe and a connection to a house sewer pipe. Figure 2 shows a schematic representation of the sewage system. As is shewn in figure 1 the house sewer pipe 1 is connected to the collecting gully 2, and which at its bottom side is provided with a valve 3, which may be operated under the control of a level switch 4 arranged in the gully 2, such, that at the reaching of a determined maximum content of sewage water in the gully, the valve 3 is opened through an electrical means and the content of the gully may flow away downwards to be taken in in the bend 5, which forms part of the collector pipe. As is shown in figure 2, the collector pipe 5, 6 belcw each collecting gully 2 is provided with a bend 5 which can take in the maximum content of a collecting gully. At the end opposite from the direction of the flew of the sewage water the collector pipe 6 is connected to the compressor 7, by means of which after the opening of the valve 8 de content of the bends 5 may be pushed away to the discharge side of the collector pipe. The connections of the gullies 2 to the collector pipe 5, 6 and the circuit of the level switches of the combined gullies is such that, when in a gully the level switch at the reaching of the maximum height of the sewage water within the gully is operated, by that all the valves of the cxmbined gullies 2 are opened, and the σontents of the gullies are taken in in the below situated bends 5 of the collector pipe 5, 6. Next the valves 3 of the gullies 2 are closed, the compressor 7 dls put into operation and the valve 8 is opened, and after which the sewage water is pushed away out of the bends 5.

Claims: C l a i m s 1. Sewage system comprised of a collector pipe with one or more house connections and to which collector pipe an air compressor and/or a vacuum pump is connected, characterized in that a house connection is comprised of a collecting gully with a connection for the house sewer pipe, and wherein the gully at its bottom side is provided with a valve, which may be operated under the control of a level switch arranged in the gully, while the valve at the discharge side is connected to the collector pipe. 2. Sewage system according to claim 1, characterized in that the collector pipe at the place of a house connection is provided with a bend situated in a vertical plane, to the middle part of which the valve is connected and from which both the sideways running bend parts run upwards up to a height belcw the valve. 3. Sewage system according to claim 2, characterized in that the bend has a capacity which is sufficient to take in the maximum content of sewage water in the collecting gully. 4. Sewage system according to claim 1 or 2, characterized in that the level switches of several, to the collector pipe connected collecting gullies are switched parallel, such, that at the change-over of a level switch at the reaching of the maximum sewage water height within a gully, the valves of the several gullies are opened to overflow the sewage water quantities present in these gullies in the bends arranged belcw the gullies, after which the valves are closed again, the compressor and/or the vacuum pump is put into operation and after which the sewage water is pushed and/or or sucked away out of the bends.

Inventors: VAN BAAR JACOBUS ELDERT MARIA, VAN BAAR, JACOBUS, ELDERT, MARIA
Applicants: AANNEMINGSBEDRIJF JOH RANZIJN, AANNEMINGSBEDRIJF JOH. RANZIJN BV
Application year: 1992
Main classification: E03F1
IPC codes: E03F1