EP3023554A1 - Draining siphon - Google Patents

Abstract

The present invention relates to a siphoning siphon (1) for a flush-mounted installation, which requires less than 0.8 liters flushing volume, in particular at most 0.5 liters flushing amount and in which nevertheless a sufficient suction effect is provided. The Absaugsiphon invention (1) is very compact and thus suitable for all types of urine in flush-mounted installations and also inexpensive to produce.

Description

The present invention relates to a suction siphon for a flush-mounted installation according to the preamble of claim 1, which is particularly useful for toilet urinals and the like ..

Siphonic siphons for drainage installations are mainly known for urinal drainage.

So shows EP 1 170 0426 A1 a drain siphon with an S-shaped flow channel. The disadvantage of this, however, is that this Absaugsiphon is relatively large dimensions and consumes a lot of water. For the use of siphoning siphons in flush-mounted installations has been developed to reduce space such snail-shaped flow channel. The siphoning siphon of DE 244 76 95 A1 is designed as inserted into a mounting housing and has a teardrop-shaped cross-section of the flow channel. From the DE 195 45 907 A1 is a Absaugsiphon known, in addition to the helical turn additionally has a fold and a pivotable outlet port, whereby this Absaugsiphon is constructed relatively bulky. These two known Absaugsiphons also require a relatively large amount of rinse water.

In order to keep the siphoning siphon for flush-mounted installations more compact and also to reduce the need for flushing water, the EP 1 416 098 A1 a Absaugsiphon ago, which has a flow channel with a circular cross section for hydraulic optimization and also consists of two shell-shaped halves, so that it is relatively inexpensive to produce. The purge volume required with this siphon is in the range of 0.8 to 1.5 liters, which is still a relatively high value.

The object of the present invention is thus to provide a suction siphon, which manages with less than 0.8 liters of flushing and in which nevertheless a sufficient suction effect is provided. In particular, the should inventive Absaugsiphon be compact designed for flush-mounted installations and inexpensive to produce.

This object is achieved with a suction siphon according to claim 1. Advantageous developments are specified in the dependent subclaims.

According to a first aspect of the present invention, the inventors have recognized that the required flushing amount can be reduced by a substantially laminar flow is achieved by generously dimensioning the radius of the winding section serving as an odor trap, the less rinse water to achieve the suction effect required. In this regard, it is defined that the turn portion extends substantially around a turn point, the turn portion having a flow passage outside and a flow passage inside with respect to the turn point. The distance of the flow channel inside the Windungsabschnitts to Windungspunkt should then according to the invention at least 10% of the distance between the flow channel outside and flow channel inside in the winding section. Better performance in terms of saving rinse water is achieved when this ratio is at least 15%, and more preferably at least 25%. Advantageously, larger ratios could be used, but this would then be at the expense of the compactness of the Absaugsiphons, so that such Absaugsiphons could be used only poorly in flush-mounted installations due to limited in some types of urine installation space.

In contrast to this teaching according to the invention, the Absaugsiphon the EP 1 416 098 B1 a serving as an odor trap Windungsabschnitt, wherein the Windungspunkt runs directly within the flow channel inside, so that the ratio is 0%. This sudden reversal of the flow by 180 ° creates a highly turbulent flow, which requires the relatively high flushing water requirement.

The siphoning siphon of DE 2 447 695 A1 Although has a serving as an odor trap winding portion in which the winding point does not extend within the flow channel inside, but here is a ratio in relation to the distance between the flow channel outside and flow channel inside of at most 5% before, which is not sufficient to such a laminar To achieve flow, which leads to a significant saving of rinse water.

The Absaugsiphon invention for a drain installation, in particular a toilet urinal or the like., Comprising an inlet and an outlet port and a preferably arranged in a housing flow channel for liquid to be derived, the flow channel input to the inlet port and the flow channel exit are connected to the outlet port the flow channel is at least partially wound around the inlet connection and the turn of the flow channel is at least partially formed as a helical winding formed in a plane, wherein at least one winding section of the flow channel serves as an odor trap, wherein the winding section substantially around a Windungspunkt around and wherein the winding section has, with respect to the winding point, a flow channel outside and a flow channel inside, wherein inlet connection and / or outlet at End is preferably formed as a nozzle, and is characterized in that the distance of the flow channel inside the Windungsabschnitts to Windungspunkt is at least 10% of the distance between the flow channel outside and flow channel inside in the winding section, preferably at least 15%, in particular at least 25%.

In a preferred embodiment, provision is made for the flow duct to have a first rectilinear flow duct section in relation to the flow direction upstream of the turn section formed as an odor trap, which has a gradient that is different from the vertical with respect to the installation position of the suction siphon and / or that follows as an odor trap trained Windungsabschnitt in the flow direction is another turn section and then a second rectilinear flow channel section, which has a different from the vertical difference in relation to the mounting position of Absaugsiphons. The flow channel inlet and the flow channel outlet advantageously run parallel to one another. This makes it possible, on the one hand, to achieve a very compact size of the siphoning siphon and, on the other hand, the flow conditions are improved because the rectilinear sections are not free-fall sections so that as much turbulence does not arise as when water falls freely in a vertical line section without the action of the conduit wall. Therefore, it is expedient if even all rectilinear flow channel sections with respect to the installation position of Absaugsiphons from the vertical have different slopes.

Alternatively or additionally, it may be provided that the flow channel has at least two rectilinear portions which are not parallel and not perpendicular to each other. This also makes the Absaugsiphon very compact, because the inclined to each other extending sections take up less space.

The compactness can be further increased if the flow channel has at least one flattening on at least one lateral boundary of the suction siphon with respect to the tubular course of the flow channel. This lateral boundary may be provided on any side of the suction siphon, but preferably on the sides, which extend vertically with respect to the installation position tangential to the helical course. If an inclination of the winding portion of the Absaugsiphons is provided, then flattening can be provided on both sides, so that in contrast to a unilateral flattening results in a lower fluidic effect, since the cross-section must be flattened about half as strong to the required dimensions of, for example, currently to comply with the usual 100 mm.

Advantageously, it can be provided that the plane of the spiral-shaped turn of the flow channel is arranged in an area + 45 ° to -45 ° inclined to the vertical, preferably in a range + 20 ° to -20 ° inclined to the vertical, in particular vertically aligned.

Furthermore, it may be expediently provided that the flow channel is at least partially tubular and advantageously at least partially, preferably completely has a hexagonal, octagonal and decagonal cross section, on which in particular a capacitive sensor is arranged. On the one hand, this design is favorable in terms of flow, but on the other hand makes it possible to easily integrate sensors for actuation. While in round pipe sections either the sensor would have to be bent or formed on the pipe material thickening is to attach a planar sensor, this is no longer necessary. As a result, the production is cheaper and the sensor performance is better, since by such material thickening in capacitive sensors, one plate is a sensor plate and the other plate is formed by the flowing behind the pipe water, the detection accuracy of the sensor is reduced.

In terms of flow technology, it is particularly favorable if the flow channel is formed at least in the region of the turn, with the exception of possibly provided flattenings having a constant cross section.

In an alternative embodiment, for which according to a second aspect of the invention, independent protection is claimed, it is provided that the flow channel has a portion which extends at an angle, in particular a right angle from the plane of the winding of the tortuous portion of the flow channel extends with a smaller cross section over a first length into the outlet port, which has a larger cross section. It is expedient if this section is the flow channel exit, because the Absaugsiphon can then be kept very compact, but can also be provided that this section is arranged between the flow channel exit and the tortuous area. It is preferably provided that the plane of the winding of the tortuous region extends vertically and the flow channel exit is arranged at a right angle thereto.

The outlet connection is therefore formed with a larger cross section, because it is the connection to standard sanitary pipes. By contrast, the flow channel has a smaller cross section in order to reduce the flushing water requirement.

As an alternative or in addition to this alternative embodiment, for which independent protection is likewise claimed according to the second aspect of the invention, it can be provided that the outlet connection preferably encompasses the flow channel at a distance along a second length, thereby forming a free space around the flow channel communicates with the outlet port. Here, too, it is preferably provided that the plane of the winding of the tortuous region extends vertically and the flow channel exit is arranged at a right angle thereto.

Due to the angled arrangement of the section relative to the plane of the winding area, ie the emergence of this section relative to the winding, the flow is also influenced very favorably. Now there is no sudden cross-sectional increase in the transition between turn and outlet connection and in connection with the kink between turn and outlet connection, no whirlpools are created. Rather, the flow is kept stable longer, so that by earlier access of the cross section with rinse water of the suction effect occurs earlier and thus less rinse water is consumed.

By the measure of the space through which forms an annular gap, it is achieved that bioslice that forms easily in such Absaugsiphons and sanitary pipes does not lead to clogging of the flow channel. By the higher flow velocity at the flow channel exit is largely kept free of this by bioslime and possibly in the outlet connection possibly depositing bio-slime can not get into the flow channel, but enters into the annulus.

It may then preferably be provided that the first length is at least 10 mm, preferably at least 20 mm, in particular at least 30 mm. Then whirlpools are particularly well prevented. It is also advantageous if the first length is equal to the second length, if both alternatives are realized at the same time, because then a very large annular space is available. Furthermore, it is advantageous if the section extends perpendicular to the helically wound region of the flow channel. Through all these measures, the flow can be further influenced advantageous, which additionally reduces the Spülwasserbedarf.

In a further particularly preferred embodiment, it is provided that, in the transition between flow channel and outlet connection, the cross section of the flow channel is at least 10%, preferably at least 20%, in particular at least 30% smaller than the cross section of the outlet connection.

Alternatively or additionally, it is advantageous if the cross section of the flow channel in the transition between the flow channel and the outlet connection essentially corresponds to the cross section of the tortuous region of the flow channel.

Fig. 1

den erfindungsgemäßen Absaugsiphon in einer perspektivischen Draufsicht,

Fig. 2

den erfindungsgemäßen Absaugsiphon gemäß Fig. 1 in einer Draufsicht von vorn und

Fig. 3

den erfindungsgemäßen Absaugsiphon gemäß Fig. 1 in einer seitlichen Schnittdarstellung.

The characteristics and features of the present invention and further advantages will now be apparent from the description of a preferred embodiment in conjunction with the figures. Showing:

Fig. 1

the siphoning siphon according to the invention in a perspective plan view,

Fig. 2

the Absaugsiphon according to the invention according to Fig. 1 in a plan view from the front and

Fig. 3

the Absaugsiphon according to the invention according to Fig. 1 in a lateral sectional view.

In the Fig. 1 to 3 is Absaugsiphon 1 of the invention, which is useful for example for a toilet urinal, shown purely schematically in different views. Fig. 1 shows a perspective top view, Fig. 2 a top view from the front and Fig. 3 a side sectional view. It can be seen that the suction siphon 1 has an inlet connection 2 with a lamellae receptacle 2 a for a urinal (not shown) and an outlet connection 3 as well as a flow channel 4. In this case, the Absaugsiphon 1 a housing 5, which is formed from two shell-shaped elements 6, 7, which consist of an injection-molded plastic and, for example, welded or glued together.

The flow channel 4 has a first turn section 8, which serves as an odor trap 9, and the flow channel 4 winds helically around the entry connection, wherein beside the first turn section 8 a second turn section 10 and a third turn section 11 are provided and additionally in front of the first turn section 8, a first rectilinear flow channel section 12, between the first coil section 8 and the second coil section 10, a second rectilinear flow channel section 13 and between the second coil section 10 and the third coil section 11, a third rectilinear flow channel section 14. It can be seen that the first rectilinear flow channel section 12 and the third rectilinear flow channel section 14 parallel to each other. The second rectilinear flow channel section 13 is inclined thereto, i. neither parallel nor vertical.

The flow channel 4, as best of Fig. 3 to recognize an octagonal cross section. As a result, a laminar flow is favored, wherein alternatively also hexagonal or decagonal cross-sections can be provided, and in addition a capacitive sensor can be particularly easily provided on the Install flow channel, which is provided for example as a simple metal plate on the back of the housing 5 and for automatically detecting a use event and the subsequent triggering of a purge. In connection with relatively small wall thicknesses of the flow channel 4, as required for the functioning of such a capacitive sensor, the hexagonal, octagonal or decagonal cross-section offers better stability compared to approximately circular cross-sections, the sensor is easier to attach to those in this Cross sections present straight wall sections 15 and has a better performance.

In the first winding section 8 of the flow channel 4, which forms the odor trap 9, there is a uniform bending radius, which refers to the winding point 16. Closest to the winding point 16, the first winding section has a flow channel inside 17 and opposite a flow channel outside 18. The distance between Windungspunkt 16 and flow channel inner side 17 (which is assumed to measure of the flow on the inner surface of the flow channel inner side 17) is relative to the light shaft between flow channel inner side 17 and flow channel outer side 18 about 27%, This creates a very laminar flow in the first turn section when operating the flush, whereby only a small amount of rinse water is needed.

Furthermore, it is provided that with respect to the installation position of Absaugsiphons 1, by the in Fig. 2 drawn horizontal A and vertical V is defined, none of the rectilinear flow channel sections 12, 13, 14 has a vertical slope, but a slope inclined to the vertical. This ensures that the laminar flow is maintained during the flushing process substantially over the entire flow channel 4 and also dead water areas, ie areas without flow, are as small as possible.

In addition to the helically wound around the inlet port 2 around area 19 of the flow channel 4, the flow channel 4 also has a perpendicular thereto extending flow channel region 20, which forms the flow channel exit 20. This second flow channel region 20 extends over a length L within the outlet connection 3 and has a smaller cross section with respect to the cross section of the outlet connection 3. As a result, there is no sudden cross-sectional increase in the flow direction S and there are no strudel in the bend, as for example in the EP 1 416 098 B1 and whereby the flow can be torn off, but the flow is kept stable longer, so that by earlier access of the cross section with rinse water in the second flow channel region 20 of the suction effect occurs earlier and thus less rinse water is consumed. The stabilization in the flow is further assisted by the fact that the outlet connection 3 surrounds the second flow channel region 20 at a distance, so that a free space 21 is formed between the second flow channel region 20 and the outlet connection 3, which communicates with the outlet connection 3. This effectively prevents the entry of bioslurry into the flow channel (4, 20). In this embodiment, therefore, the first length L is equal to the second length.

The length L of the second flow channel region 20 is approximately 170% of the difference between the cross sections of the outlet port 3 and the second flow channel region 20 and is greater than 30 mm. The cross section of the second flow channel region 20 is approximately 35% smaller than the cross section of the outlet port 3.

As a result, despite the large bending radii supporting the laminar flow, a very compact design of the housing 5 of the suction siphon can be obtained in the turn sections 8, 10, 11. This is further supported by the fact that the otherwise formed with a constant cross-section flow channel 4 with respect to the mounting position of Absaugsiphons 1 at both lateral boundaries flattening 22, 23, whereby the dimension of, for example, 100 mm is maintained, without the flow is adversely affected by the associated with the flattening 22, 23 minor cross-sectional constrictions of the flow channel 4 in the region of these flattenings 22, 23. These flattenings 22, 23 are thus provided on the lateral boundary of the Absaugsiphons 1, which extend in relation to the mounting position tangentially to the helical course 19 vertically.

The investigation of the Absaugsiphons 1 according to the invention in terms of its performance gave the following results: During the purging process, the water flow within the flow channel 4 of Absaugsiphons is very laminar into the outlet port 3 and there are almost no dead water areas. For a water flow of 0.4 l / s, the flow channel 4 is completely filled after 1.2 s, resulting in a flushing water requirement of about 0.55 l. In addition, it was found that the suction effect in the case of water flows starts at approx. 0.2 l / s.

With a rinsing process of approx. 10 s, conventional siphoning siphons consumed approx. 2 l and also optimized siphoning siphons EP 1 416 098 A1 consume between 0.8 l and 1.5 l. The rinsing water consumption of Absaugsiphons 1 according to the invention, however, was about 0.5 l for a water flow of 0.4 l / s. Thus, the flushing water requirement with the Absaugsiphon 1 according to the invention can be significantly reduced again.

From the foregoing, it has become clear that the present invention provides a siphoning siphon 1, which requires less than 0.8 liters of flushing, in particular at most 0.5 liters of flushing and still provides a sufficient suction effect is provided. In particular, the Absaugsiphons invention is compact and thus suitable for all types of urine in flush-mounted installations and also inexpensive to produce.

Claims (15)

Siphonic siphons (1) for a flush-mounted drainage installation with an inlet (2) and an outlet connection (3) and a flow channel (4) for liquid to be diverted, the flow channel inlet with the inlet connection (2) and the flow channel outlet (20) with the outlet connection (3). 3), wherein the flow channel (4) at least partially around the inlet port (2) is wound around and the turn of the flow channel (4) at least partially as a helical turn (19) of the flow channel (4) serves as an odor trap (9) wherein the winding section (8) extends substantially around a winding point (16), and wherein the winding section (8) with respect to the winding point (16) has a flow channel outside (18) and a flow channel inside (17), characterized in that the flow channel (4) has a portion (20) extending at an angle from the plane of the winding of the tortuous Be Rich portion (19) of the flow channel (4), said portion (20) extends with a smaller cross-section over a first length (L) in the outlet port (3) having a larger cross-section. Siphoning siphon (1) according to claim 1, characterized in that the first length (L) is at least 10 mm, preferably at least 20 mm, in particular at least 30 mm. Siphoning trap (1) according to claim 1 or 2, characterized in that the plane of the winding of the winding region (19) extends vertically and the flow channel exit (20) is arranged at a right angle thereto. Absaugsiphon (1) according to any one of the preceding claims, characterized in that in the transition between the flow channel (4, 20) and outlet port (3), the cross section of the flow channel (4, 20) at least 10%, preferably at least 20%, in particular at least 30% smaller than the cross section of the outlet connection. Absaugsiphon (1) according to any one of the preceding claims, characterized in that the cross section of the flow channel (4, 20) in the transition between the flow channel (4, 20) and outlet port (3) substantially the cross section of the tortuous portion (19) of the flow channel ( 4, 20). Absaugsiphon (1) according to any one of the preceding claims, characterized in that the outlet port (3) preferably the flow channel (4, 20) along a second length, which is preferably equal to the first length (L), spaced surrounds and thereby a free space ( 21) about the flow channel (4, 20) is formed, which communicates with the outlet port (3). Absaugsiphon (1) according to any one of the preceding claims, characterized in that the distance of the flow channel inside (17) of the Windungsabschnitts (8) to Windungspunkt (16) at least 10% of the distance between the flow channel outside (18) and flow channel inside (17) in the winding section ( 8), preferably at least 15%, in particular at least 25%. Absaugsiphon (1) according to claim 7, characterized in that the flow channel (4) with respect to the flow direction (S) before the formed as an odor trap (9) Windungsabschnitt (8) has a first rectilinear flow channel portion (12), with respect on the mounting position of the Absaugsiphons (1) has a different from the vertical gradient and / or that after the formed as an odor trap (9) winding section (8) in the flow direction (S), another winding section (10) and then a second rectilinear Flow channel section (14), the with respect to the installation position of Absaugsiphons (1) has a different from the vertical gradient. Absaugsiphon (1) according to claim 8, characterized in that all rectilinear flow channel sections (12, 13, 14) with respect to the mounting position of Absaugsiphons (1) from the vertical have different slopes. Siphonic siphon (1) according to one of the preceding claims, characterized in that the flow channel inlet (2) and the flow channel exit (20) extend parallel to each other. Absaugsiphon (1) according to any one of the preceding claims, characterized in that the flow channel (4) has at least two rectilinear portions (12, 13, 14) which are not parallel and not perpendicular to each other. Absaugsiphon (1) according to any one of the preceding claims, characterized in that the flow channel (4) at least one lateral boundary of the Absaugsiphons (1) with respect to the tubular profile of the flow channel (4) at least one flattening (22, 23). Absaugsiphon (1) according to any one of the preceding claims, characterized in that the plane of the helical winding (19) of the flow channel (4) in a range + 45 ° to -45 ° inclined to the vertical, preferably in a range + 20 ° to - 20 ° inclined to the vertical, in particular arranged vertically aligned. Absaugsiphon (1) according to any one of the preceding claims, characterized in that the flow channel (4) is at least partially tubular and advantageously at least partially, preferably completely has a hexagonal, octagonal (15) or decagonal cross-section. Absaugsiphon (1) according to any one of the preceding claims, characterized in that the flow channel (4) is formed at least in the region of the winding with the exception of the flattening (22, 23) defined in claim 12 with a constant cross-section.

Images