EP0258200B1 - Dispositif dans une installation d'eaux usées dans un bâtiment - Google Patents

Dispositif dans une installation d'eaux usées dans un bâtiment Download PDF

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Publication number
EP0258200B1
EP0258200B1 EP87850256A EP87850256A EP0258200B1 EP 0258200 B1 EP0258200 B1 EP 0258200B1 EP 87850256 A EP87850256 A EP 87850256A EP 87850256 A EP87850256 A EP 87850256A EP 0258200 B1 EP0258200 B1 EP 0258200B1
Authority
EP
European Patent Office
Prior art keywords
connection
flow
connection box
connections
upper portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP87850256A
Other languages
German (de)
English (en)
Other versions
EP0258200A1 (fr
Inventor
Ingemar Wolff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uponor NV
Original Assignee
Uponor NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Uponor NV filed Critical Uponor NV
Priority to AT87850256T priority Critical patent/ATE48294T1/de
Publication of EP0258200A1 publication Critical patent/EP0258200A1/fr
Application granted granted Critical
Publication of EP0258200B1 publication Critical patent/EP0258200B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/122—Pipe-line systems for waste water in building

Definitions

  • the invention relates to a device in a waste water installation in a building, comprising a connection box with a flow connection having circular cross section, at one end of the connection box, which is connected to a receiving conduit, said connection box including a bowl-or trough-shaped lower portion, the lowermost location of the flow connection being substantially in alignment with the lowermost location of the lower portion, and a flat upper portion.
  • SE-B-7410763-2 describes a sewer branch comprising a box construction having a trough-shaped lower portion and a flat upper portion, inlet openings for waste water from sanitary devices being provided in the flat upper portion which is raised in relation to a connection socket at one end of the box construction for connection of the sewer branch to a sewage riser.
  • the prior art sewer branch has been proposed in order to provide a sewer branch which will be effectively flushed by the sewage and thus will be kept clean so that it will not easily be clogged or blocked by sludge.
  • the present invention is proposed in order to solve a completely different problem than the prior art sewer branch.
  • a negative pressure will be obtained in the joining and receiving conduits of the sewer system, e.g. when flushing a closet bowl connected to these conduits, or when waste water is poured more or less suddenly into the sewer system from another type of sanitary device, if specific air inlets at atmospheric pressure are not provided in the sewer system. Due to the negative pressure the closing water depth in existing water seals of connected sanitary devices will be reduced such that the water seals do not function and nasty-smelling gases from the sewer net as a consequence thereof can penetrate into existing spaces.
  • the present invention solves the problem by the device of the kind mentioned above having obtained the characteristics appearing from claim 1.
  • connection box shown in FIGS. 1 to 3 in the drawings preferably is made in its entirety of thermosetting resin, and this is true also for the connection bow shown in FIGS. 4 and 5.
  • the connection box has elongated shape and comprises a trough-shaped bottom portion 10 circularly curved in cross section, and a flat top portion 11 as well as a flow connection 12 having circular cross-sectional shape, at each end of the connection box, the lowermost location of each flow connection being substantially aligned with the lowermost location of the circularly curved bottom portion.
  • the top portion of the connection box is countersunk in relation to the flow connections.
  • the countersunk portion of the connection box has a cross-sectional area which is at least equal to the cross-sectional area of one of the flow connections.
  • connection box is enlarged in relation to the flow connections, and between the flow connections and the countersunk portion of the connection box transitions 13 are provided which are partly flat and partly conical and as seen in direction from the flow connection to the countersunk portion have a cross-sectional area which is initially reduced and then enlarged.
  • connection box has a number of circular connection apertures 14, FIG. 3, which in this case are provided with connection bows 15 for the connection of connecting conduits from existing sanitary devices, but in the most simple embodiment of the connection box this box can be provided with only so-called air hoods, i.e. sockets which are closed to the surroundings and communicate with the interior of the connection box through the apertures 14.
  • air hoods i.e. sockets which are closed to the surroundings and communicate with the interior of the connection box through the apertures 14.
  • the bows can be of the construction shown in more detail in FIGS. 4 and 5 and can include an angle in the vertical plane ranging from 50 ° to 90 ° . They are attached by snap lock to the top portion 11 by the bow forming a radially slotted external flange 16, which can snap into an annular groove 17 in the bounding wall of the circular aperture 14 in the top portion for the reception of the connection bow.
  • an O ring 18' is provided to seal between the connection bend and the connection box.
  • the connection bend can be rotated over 360 ° so as to be adjusted to different horizontal angles determined by the position of the sanitary devices in relation to the connection box.
  • other connection means can be provided such as straight or S-shaped connection means.
  • connection box has a central longitudinal air collecting depression 19, FIG. 1, in the lower side thereof, said apertures 14 opening into this depression.
  • connection box has air hoods 20 only on the flat top portion and is positioned substantially horizontally.
  • One flow connection 12 thereof joins the connecting conduit 21 from a closet bowl while the other one (outlet connection) joins a horizontal receiving conduit 22.
  • FIG. 6B A corresponding installation but with the connection box arranged vertically and with a receiving conduit also extending vertically, is shown in FIG. 6B.
  • FIG. 6C A combination of these two embodiments is shown in FIG. 6C.
  • FIG. 6D discloses an installation corresponding to that of FIG. 6A but with connection bends 15 arranged as in FIGS. 1 to 3, which shall join different connecting conduits from different sanitary devices such as sinks, washbasins, floor outlets and bath tubs.
  • FIG. 6E is similar to that of FIG. 6D but in this case one transition 12 forms a so-called overangle (225 ° ).
  • the countersunk portion of the connection box is circular comprising a circular bowl-shaped lower portion 10 and a flat top portion 11 which has also in this case a central longitudinal air-collecting depression 19 in the lower side thereof.
  • the apertures for the connection bends 14 or, alternatively, the air hoods 20 in this case are located at each side of the depression 19.
  • the countersunk portion can be octagonal.
  • connection boxes can be arranged in series as shown in FIGS. 9 and 10, the boxes being connected or attached to each other or being made integral with each other.
  • connection box the flow characteristic of the flush water flow entering therein from the closet bowl will be changed partly by initial retardation and thus damming-up of the flow in the upstream transition 13, and partly by following distribution and pressure equalization of the water flow in the countersunk portion of the connection box so that the flow will change from a low velocity and a heavily turbulent flow course to a more laminary flow course at reduced velocity.
  • the air at the countersunk top of the connection box as a consequence thereof will be pressed into the connecting conduits via the connection bends or other connection means or into the hoods, respectively.
  • FIGS. 11 to 13 disclose such a connection box.
  • a closed container 23 is arranged in the depression formed by the countersunk portion on the upper side of the connection box.
  • a socket 24 preferably provided with a sieve 25, is provided on the upper portion 11 and communicates with the interior of the connection box, and this socket projects upwards over a distance into the interior of the container 23.
  • FIGS. 14 and 15 disclose a similar embodiment having two sockets 24, however, which communicate each with one container 23A and 23B but, in an alternative embodiment, can communicate with a common container.
  • connection box When the leading amount of flush water enters the connection box a certain part of the air contained therein will be pressed through the socket or the sockets, respectively, into the enlarged air space in the container or the containers, respectively, wherein the air for some seconds will be compressed to a slight overpressure which then will be transmitted immediately through the socket or the sockets, respectively, to the flush water in the connection box, where the overpressure to some extent has a retarding and reducing effect on the negative pressure when the trailing amount of the flush water passes through the water seal and the risk of the seal being emptied is at maximum.
  • FIGS. 11 to 13 and FIGS. 14 and 15 respectively, a minor amount of water will be present in the container 23 or the containers 23A and 23B, respectively. This can be avoided by the embodiment of the connection box shown in FIGS. 16 and 17 wherein the sockets 24 connect to the bottom of the container 23.
  • connection box In order to attenuate the noise level at flushing the connection box can be coated with rubber internally and externally or it can also be coated externally with foamed rubber or plastic material.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Water Treatment By Sorption (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Measurement Of Force In General (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Physical Water Treatments (AREA)

Claims (6)

1. Dispositif dans une installation d'eau usée dans un bâtiment comportant une boîte de connexion (10, 11) avec une connexion d'écoulement (12) ayant, à une extrémité de la boîte de connexion qui est connectée à un conduit de réception (22) une section transversale circulaire, ladite boîte de connexion comportant une partie inférieure (10) ayant une forme de cuvette ou auge, l'endroit le plus inférieur de la connexion d'écoulement étant essentiellement aligné avec l'endroit le plus inférieur de la partie inférieure, et une partie supérieure plate (11), caractérisé en ce que le conduit de connexion (21) d'un dispositif sanitaire ayant un débit d'eau instantané élevé, par exemple une cuvette de toilette, est connecté avec une connexion d'écoulement correspondante (12) à l'autre extrémité de la boîte de connexion et en ce que la boîte de connexion est élargie par rapport aux connexions d'écoulement, la partie supérieure plate étant contre-baissée par rapport aux connexions d'écoulement et ayant une ou plusieurs connexions pour des conduits de connexion et/ou des capuchons d'air, et comporte une transition (13) à partir de chaque connexion d'écoulement vers la partie élargie et contre-baissée de la boîte de connexion, ladite transition comportant une surface de coupe transversale réduite et ensuite élargie pour une rétention initiale de l'écoulement et ensuite une réduction de la vitesse d'écoulement lors d'un débit d'eau venant du dispositif sanitaire, la caractéristique de l'écoulement étant changée en même temps d'un écoulement turbulant en un écoulement plus laminaire pour la réduction de l'échappement d'air de la boîte de connexion.
2. Dispositif selon la revendication 1, caractérisé en ce que les connexions sur la partie supérieure plate contre-baissée (11) sont munies de coudes rotatifs (15) pour la connexion des conduits de connexion.
3. Dispositif selon la revendication 1 ou 2 caractérisé en ce que un ou plusieurs capuchons d'air sont connectés à la partie supérieure plate.
4. Dispositif selon la revendication 1 caractérisé en ce que plusieures boîtes de connexion sont inter- connectées ou assemblées en série pour former une unité.
5. Dispositif selon la revendication 4 caractérisé en ce que les boîtes de connexion ont des longueurs différentes.
6. Dispositif selon la revendication 1 caractérisé en ce que la partie supérieure plate (11) comporte une dépression pour capter de l'air (19) dans son côté inférieur.
EP87850256A 1986-08-27 1987-08-26 Dispositif dans une installation d'eaux usées dans un bâtiment Expired EP0258200B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87850256T ATE48294T1 (de) 1986-08-27 1987-08-26 Vorrichtung in einer abwasserinstallation in einem gebaeude.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8603609 1986-08-27
SE8603609A SE459425B (sv) 1986-08-27 1986-08-27 Anordning vid spillvatteninstallation i byggnad innefattande en anslutningslaada

Publications (2)

Publication Number Publication Date
EP0258200A1 EP0258200A1 (fr) 1988-03-02
EP0258200B1 true EP0258200B1 (fr) 1989-11-29

Family

ID=20365412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87850256A Expired EP0258200B1 (fr) 1986-08-27 1987-08-26 Dispositif dans une installation d'eaux usées dans un bâtiment

Country Status (7)

Country Link
EP (1) EP0258200B1 (fr)
AT (1) ATE48294T1 (fr)
DE (1) DE3761056D1 (fr)
DK (1) DK438987A (fr)
FI (1) FI84089C (fr)
NO (1) NO160015C (fr)
SE (1) SE459425B (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE75439C (de) * A. LUCE in Heidelberg, Bismarckstr. 7 Vorrichtung zum Abführen der Kanalgase aus Abfallröhren
FR2240322A1 (en) * 1973-08-10 1975-03-07 Armosig Branch junction piece for waste water pipes - has lateral break-fall ramp and air compensation chamber
JPS6011798A (ja) * 1983-06-29 1985-01-22 株式会社クボタ 排水用集合管

Also Published As

Publication number Publication date
SE8603609L (sv) 1988-02-28
FI873695A (fi) 1988-02-28
NO160015C (no) 1989-03-01
NO160015B (no) 1988-11-21
DE3761056D1 (de) 1990-01-04
DK438987A (da) 1988-02-28
FI873695A0 (fi) 1987-08-26
SE459425B (sv) 1989-07-03
NO873610D0 (no) 1987-08-26
EP0258200A1 (fr) 1988-03-02
FI84089C (fi) 1991-10-10
DK438987D0 (da) 1987-08-21
NO873610L (no) 1988-02-29
FI84089B (fi) 1991-06-28
SE8603609D0 (sv) 1986-08-27
ATE48294T1 (de) 1989-12-15

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