PL227223B1 - Aerating system for sanitary sewage vertical shafts - Google Patents

Abstract

The aeration system of the sanitary sewage system risers consists of a hermetic tank (1) connected to the sewage riser (3) at its highest point, and sanitary accessories (2) are connected to the sewage riser (3) by means of sewage connections (10). sewage siphons (9), where the sewage riser (3) is connected in the lower part with an outflow pipe (4), at the end of which there is a tee (6), to the branch of which an exhaust pipe (8) is attached, on which there is a damper (13) with an actuator (14), which is connected by an electric cable (15) to the controller (12), and the controller (12) is connected to the pressure sensor (11) mounted in the hermetic tank (1), and to the passage of the tee ( 6) a drainpipe (5) connected to the reception point (7) is attached.

Description

Description of the invention

The subject of the invention is an aeration system for the riser of a sanitary sewage system, especially in passive buildings.

The construction of passive buildings forces architects and installers to use the simplest possible solutions regarding the geometry of the building's body and to ensure maximum continuity of the external cover of buildings, which results in their reduced heat demand described by the authors - Feist W., Mϋzenberg U., Thumulla J., Darup BS , Basics of passive construction, Publishing House of the Polish Passive Building Institute, Gdańsk 2009, pp. 30-31. Such buildings should not have internal chimney walls that cross the continuity of the roofing described by the author - Wnuk R., Building a passive house in practice, Wydawnictwo Guide Budowlany, Warsaw 2006, p. 89 - therefore it is not recommended to use exhaust pipes that serve for ventilation of sanitary sewage systems, as well as for its aeration. The lack of ventilation of the sanitary sewage system leads to operational problems such as sucking water from sewage siphons under sanitary utensils as a result of negative pressure caused by flushing water by other utensils and releasing unpleasant odors into the rooms from the sewage system due to inoperative water safeguards in the form of sewage siphons described by the authors - Chudzicki J , Sosnowski S., Sewage Installations, design, execution, operation, Wydawn ictwo "Seidel-Przywecki" Sp. z o.o., Warsaw 2009, p. 104.

Accordingly, the following three solutions are implemented in technical practice. The first solution is to resign from the aeration of ventilation risers, which is a method inconsistent with applicable regulations - the PN-EN 12056-2: 2002 standard. Gravity sewage systems inside buildings. Lot 2: Sanitary sewer, layout design and calculation - and lead to the problems mentioned above. The second solution, which consists in placing the exhaust pipe above the roof slope, is not compatible with the passive house concept as it cuts through the insulation layer and generates thermal bridges. In turn, the third solution, based on the use of aeration valves, which suck air from the internal rooms of the building to the sewage riser and at the same time prevent it from escaping into the room, allows the proper functioning of the sewage system, but it is limited, described by the authors Chudzicki J, Sosnowski S. , Sewage Installations, design, execution, operation, Publishing House "Seidel-Przywecki" Sp. z o.o, Warszawa 2009, p. 108 - especially if it is the main sewage riser with a connected toilet bowl. In addition, the effectiveness of the valves discussed in the third solution is not perfect and after some time of operation of the installation, odorous gases from the sewage system enter the rooms, which is perceived as unpleasant odors.

The essence of the aeration system for the riser of the sanitary sewage system having a sewage riser with sanitary utensils installed through sewage siphons and sewage approaches, in which the sewage riser is connected with a drainage conduit through tees with a sewer, which is connected to the collection point, and a drain conduit through tees with an exhaust pipe according to the invention is that a hermetic tank is connected to the sewage riser at its highest point. The sewage riser is connected in its lower part with the drainage pipe, at the end of which there is a tee, to which the exhaust pipe is attached. There is a damper with an actuator on the exhaust pipe. The actuator is connected to the controller by an electric cable.

The controller is connected to a pressure sensor mounted in a hermetic tank.

A beneficial effect of the aeration system of the sanitary sewage riser is that it solves the problem of aeration of the gravity sewage system in passive buildings. The solution eliminates problems related to the malfunctioning of sewage systems in this type of facilities, while maintaining the continuity of thermal insulation.

The aeration system for the sanitary sewage system riser is shown in the exemplary embodiment in the schematic drawing.

The aeration system of the sanitary sewage riser consists of a hermetic tank 1 connected to the sewer riser 3 at its highest point, to which the sewage riser 3 is connected by means of sewage approaches 10 to sanitary utensils 2 equipped with sewage siphons 9. The sewerage riser 3 is connected to the sewage riser 3 at its highest point. the lower part with the drain pipe 4. At the end of the drain pipe 4 there is a tee 6, to the branches of which the exhaust pipe 8 is attached, on which there is a damper 13 with an actuator 14, which

It is connected by an electric wire 15 to the controller 12. The controller 12 is connected to a pressure sensor 11 mounted in the hermetic tank 1. A drain 5 connected to the collection point 7 is attached to the passage of the tee 6.

The operation of the aeration system of the sanitary sewage riser is that air is stored in the hermetic tank 1, which when the sanitary fixture 2 is activated, which creates a negative pressure in the sewer riser 3, is taken to the sewer riser 3, sewer approaches 10 and drainage conduit 4 and prevents breakage continuity of water closures in sewage siphons 9 at sanitary utensils 2. The resulting negative pressure in the hermetic tank 1, sewer riser 3, sewer approaches 10 and drainage conduit 4 is registered by the pressure sensor 11, which is mounted in the hermetic tank 1 and 10, transmits a signal to the controller 12, which by means of an actuator 14 opens by default a closed damper 13 mounted on the exhaust pipe 8, thanks to which the pressure in the sanitary sewage system is equalized, and the hermetic tank 1 is replenished with air. After the pressure in the system has equalized, the pressure sensor 11 transmits a signal to the controller 12 which, by means of an actuator 14, closes the damper mounted on the exhaust pipe 8.

List of designations

1. hermetic tank

2. sanitary utensils

1. sewerage riser

2nd drain hose

3rd house drain

4. tee

5th pickup point

6. exhaust pipe

7. sewage siphon

8. sewerage approach

9.pressure sensor

10. driver

11. throttle

12. actuator

13.electric wire

Claims (1)

1. Aeration system of the sanitary sewage system riser with a sewage riser (3) with sanitary equipment (2) installed through sewage siphons (9) and sewage approaches (10), in which the sewage riser (3) is connected with a drain pipe (4) through a tee (8) with a sewer house (5), which is connected to the collection point (7) and a drain pipe (4) through a tee (8) with an exhaust pipe (8), characterized in that to the sewage riser (3) at its highest point the hermetic tank (1) is connected, and the sewage riser (3) is connected in the lower part with the drain pipe (4), at the end of which there is a tee (8), to the branches of which an exhaust pipe (8) is attached, with the throttle (13) is connected to the actuator (14), which is connected by an electric wire (15) to the controller (12), and the controller (12) is connected to the pressure sensor (11) mounted in the hermetic tank (1).