WO2002006595A1

WO2002006595A1 - Sump for liquids

Info

Publication number: WO2002006595A1
Application number: PCT/SE2001/001539
Authority: WO
Inventors: Hans Ernefeldt
Original assignee: Pipelife I Sverige Ab
Priority date: 2000-07-13
Filing date: 2001-07-04
Publication date: 2002-01-24
Also published as: SE0002657L; AU2001267996A1; SE0002657D0

Abstract

In various spaces, there are sumps to dispose of water dispersed on the surface of a floor. There are also locations that lack sump but have a waste conduit passing through them. If such a conduit, or for instance a water pipe, should rupture, there is then no sump to dispose of the dispersed water. The object of the present invention is to solve this problem by arranging an annular sump (1) around a waste conduit where a passing waste conduit (7 and 8) inside the sump (1) has been severed so that it has two opposing ends spaced from each other.

Description

SUMP FOR LIQUIDS

In spaces where is anticipated that water may be dispersed on the floor, a sump is usually arranged to dispose of the liquid that may occur. However, there are also spaces that have a waste pipe passing through them but no sump. A passing waste conduit or, for instance, a water conduit always entails an element of risk and can give rise flooding, causing costly expenditure due to the lack of a sump. Likewise, there are premises adjoining spaces where flooding can be caused, which can result in damage to the adjoining premises due to the lack of a sump. Thus, the lack of a sump gives rise to costly damage in certain spaces, which is a substantial disadvantage and also a disadvantage to insurance companies.

The object of the present invention is to reduce water damage primarily in spaces containing waste conduits or, for instance, water pipes. The present invention achieves this by arranging an annular sump around a waste conduit and providing the waste conduit with openings or ensuring that the waste conduit inside the sump has part of the waste conduit removed in such a way that the waste conduit inside the sump has two ends opposing each other and located a distance from each other. The sump can have an internal circumferential ring that cooperates with the waste conduit and the inner wall of the sump in such a way that the ring acts as a non-return valve, which means that the ring must be rigidly anchored to either one of the opposing walls. The ring should suitably be in the shape of a conically arranged plate. A sump in accordance with the invention can be provided with a conduit running through its cover and provided with a conduit running through its bottom, the two inner ends of these conduits opposing each other and the outer ends of these conduits being joined with two opposing ends of a waste conduit. Thus, the sump in accordance with the invention can be described as a coupling element uniting a waste conduit that has two opposing ends located a distance from each other.

The sump can be provided with a circumferential wall surrounding the conduit penetrating the cover and located between the inner wall of the sump and the outer wall of the conduit. This conduit can suitably be attached via its upper end to the waste conduit. All the component parts of the sump and its connections can be manufactured of any desired material whatsoever. However, the use of plastic is recommended.

Sumps in accordance with the present invention can be placed in any desired space, even in locations where there is no waste conduit but where connections can be made from existing waste conduits in other premises and where such security measures can be concealed or suitably masked so that complete protection from flooding is obtained.

Further characteristics of the present invention are disclosed in the claims set out below.

One embodiment of the present invention will be described in more detail in connection with the appended drawings, where Figure 1 shows a cross-section of a sump and

Figure 2 shows the cover of the sump in accordance with Figure 1.

Figure 1 shows a waste conduit 7 and 8, where a portion has been removed to enable a sump in accordance with the present invention to be placed between the conduit ends 7 and 8. The sump 1 consists of a circumferential wall 2, a bottom 3, and a cover 4. A conduit 9 is arranged in the middle of the cover 4, and suitably attached to the cover itself in one way or another. A coupling element 10 is arranged on the conduit 9. Said coupling element is intended to receive the lower part of the waste conduit 7. The sump 1 is intended to be placed in a layer 5 that can be of concrete, as indicated in the drawing. Further, the cover 4 is intended to be level with the surface 6 of the layer 5. A circumferential wall, which can be in one piece or in parts, is arranged between the outer wall of the conduit 9 and the inner surface of the circumferential wall 2. The circumferential wall has designation number 13 and is suitably attached via its upper end to the cover 4 or the conduit 9. A non-return valve 14, which is suitably attached to either one of the opposing walls, is arranged between the inner surface of the circumferential wall 2 and the interjacent wall 13. The non-return valve is in the shape o f circumferential ring, conical and, preferably, elastic. Obviously, the nonreturn valve 14 can be of any desired design. The non-return valve also acts as a barrier for odours from the waste conduit. A conduit 11 is attached to the bottom of the sump 1. The upper end of this conduit is opposite the lower end of the conduit 9. A gap between the two conduit ends has been given designation number 15. At its lower end, the conduit 11 is provided with a coupling unit 12 for connecting the conduit with the upper part of the waste conduit 8. The cover 4 is provided with one or several passages 16 running through it. The sump illustrated is arranged in the following way. The sump 1 is arranged in the subfloor through which the waste conduit 7 and 8 passes and its conduit part 11 is connected with the aid of the coupling unit 12 to the lower (upper) part of the waste conduit 8. The lower part of the waste conduit 7 is introduced into the coupling unit 10 and, thereby, the space where the waste conduit 7 and 8 passes through the floor is secured against possible flooding in the event of the waste conduit 7 or, for instance, some nearby water pipe rupturing, in which case the dispersed water will pass through the cover 4.

Sumps of the type described above can obviously be placed in different spaces and suitably masked so that the space in question is protected against flooding damage. In such cases, the waste conduit can be run to the location where the sump is placed and concealing the sump, as well as the waste conduit, presents no real problem in new constructions. It should be obvious that the container part 2 can have any desired shape whatsoever. Thus, it can be cylindrical, spherical, or formed of any desired number of wall elements.

The present invention has thus created a sump that is usually placed in spaces where waste conduits pass. The invention has thus created sumps that can substantially reduce the insurance costs for water damage.

Claims

1. A sump (1) for liquids consisting of a container part (2 and 3) of any desired shape, such as spherical, or of a bottom (3) and a circumferential wall (2), of a cover (4) with passages (16) running through it and of a drain connection (11) to the container part (2 and 3), characterized in that a waste pipe (7 and 8) is severed and has two ends facing each other and spaced from each other and in that the sump (2 and 3) is designed in such a way that the sump (2 and 3) constitutes a coupling element for the two conduit parts (7 and 8) a n d in that the their ends oppose each other inside the sump (1).

2. A sump as claimed in claim 1, characterized in that the cover (4) has a first conduit part (9) running through it a n d in t at the container (2 and 3) has a second conduit part (11) running through it in its lower part, which conduit parts (9 and 11) have two ends opposing each other and spaced from each other inside the container (1).

3. A sump as claimed in claim 2, characterized in that a wall (13) is arranged between the inner wall (2) of the container and the outer wall of the conduit part (9) of the cover (4) and in one or several pieces and preferably has its upper part attached to the conduit part (9) of the cover (4).

4. A sump as claimed in claim 2, characterized in that a circumferential ring (14) is arranged between the inner wall of the container (1) and the wall opposite said wall (2), the ring being attached to either one of the walls in such a way that the circumferential ring (14) acts as a non-return valve.

5. A sump as claimed in claim 2, characterized in that first and second conduit parts (7 and 8) each co-operate with a respective sleeve joint (10 and 12) or the like, connecting one of the ends of each of the two conduit parts (9 and 11 ) to the waste pipe.