WO2016113036A1

WO2016113036A1 - Plumbing trap device

Info

Publication number: WO2016113036A1
Application number: PCT/EP2015/078444
Authority: WO
Inventors: Frank Kemmerling; Petra SILBERMANN
Original assignee: Siemens Aktiengesellschaft
Priority date: 2015-01-12
Filing date: 2015-12-03
Publication date: 2016-07-21
Also published as: CN208515597U; RU178137U1; DE102015200244A1; EP3218241A1

Abstract

The invention relates to a plumbing trap device (10), in particular a drain trap, comprising a liquid chamber (30); when liquid (F) in the liquid chamber (30) is at a sufficiently high fill level (FS), same forms a plumbing trap between an inlet (21) and a discharge port (60) of the plumbing trap device (10). According to the invention, the plumbing trap device (10) comprises a refilling device (200) for automatically refilling liquid (F) into the liquid chamber (30); said refilling device (200) is designed in such a way as to trigger the automatic refilling of liquid (F) into the liquid chamber (30) when the fill level (FS) in the liquid chamber (30) drops below a predefined minimum fill level.

Description

description

The invention relates to odor trap devices, in particular siphons, and to vehicles equipped with ^such odor trap devices.

In sewage systems nowadays common rail vehicles may cause odor nuisance by digester gases, if they escape from a gray water tank of the rail vehicle in Rich ^¬ direction of the vehicle interior. To prevent entry of sewage gas into the vehicle interior, the Abwas ^¬ water systems with trap devices, usually equipped in the form of siphon.

When driving into tunnel sections or when leaving tunnel sections, pressure differences or pressure surges may occur, in particular at high vehicle speed, which act on the sewage system and the gray water tanks; such pressure surges can cause the above mentioned siphon he ^¬ be sucked empty, or the water therein is pressed out. Are siphons not provided with sufficient water column, they lose - as long as no water is added - their function as Ge ^¬ ruchsverschlusseinrichtung and fermentation gases can escape from the gray water tank in the direction of the vehicle interior.

The object of the invention is to specify an odor-closure device, in particular a siphon, in which the risk of undesired deactivation of the odor-trap effect in the case of negative pressure surges or overpressure surges is excluded, at least reduced. This object is achieved by a Geruchsver ^{¬ closing} device with the features of claim 1. Advantageous embodiments of the invention Odor closure device are specified in subclaims.

According to the invention, it is provided that the odor-closure device comprises a refilling device for the automatic refilling of liquid into the liquid chamber, wherein the refilling device is designed such that it automatically replenishes liquid into the liquid

Liquid chamber triggers when the liquid level in the liquid chamber falls below a predetermined minimum liquid level.

A significant advantage of the odor trap according to the invention is the fact that in the event of a loss of liquid in the liquid chamber, especially in very large pressure or vacuum surges, liquid is automatically refilled and thus always ensures that sufficient liquid level is present for an efficient odor trap.

With regard to the design of the refilling device, it is considered to be particularly advantageous if it has a liquid sensor which generates a control signal when a predetermined minimum liquid level in the liquid chamber is undershot.

The odor-sealing device, in particular its refilling device, preferably has a controllable shut-off device which, when open, permits a liquid flow in the direction of the liquid chamber and blocks a liquid flow in the direction of the liquid chamber in the closed state.

It is advantageous if the obturator is indirectly or indirectly connected to the liquid sensor and switches the obturator in the presence of the control signal of the liquid ^¬ keitssensors in its open state. The predetermined minimum liquid level corresponds preference ^¬ as a liquid level between the inlet opening and the drain port. It is considered advantageous if the obturator is an electrically controllable obturator and the liquid ^¬ sensor as control signal an electrical control signal he testifies ^¬ . The obturator is preferably arranged such that, in the opened state, it permits a flow of liquid into a section of the inlet pipe located outside the liquid chamber. It is particularly advantageous if the obturator communicates with a fresh water line and in the opened state permits a flow of fresh water into the liquid chamber or into a section of the inlet pipe located outside the liquid chamber.

In addition, it is considered advantageous if a loss of fluid is avoided where possible by pressure surges or at least minimized so that exceptional cases refilling only from ^¬ (z. B. with particularly large pressure surges or particularly frequent pressure shocks) are made or in the case of evaporation got to. In this connection, it is considered to be advantageous if the odor-stop device has a pressure-reducing device which dampens an overpressure or underpressure impact at a discharge port or at an inlet port of the odor-stop device by increasing or decreasing the volume of the liquid chamber of the odor-stop device. With such a pressure surge reducing device can be achieved in an advantageous manner that a suction, expulsion or

At least redu is ^¬ sheet sloshing out of the in-liquid chamber by pressure surges or avoided. In other words, can be achieved by the additionally provided pressure surge reducing device, that the probability of disabling the Ge ^¬ ruchsverschlusswirkung by fluid loss in the event of excess pressure shocks or negative pressure surges is at least reduced.

With regard to the design of the pressure surge reducing device, it is considered to be particularly advantageous if it is formed by or comprises a membrane which deforms in the event of overpressure surge while increasing the volume of the liquid chamber to the outside and in the case of a vacuum shock with reduction of the volume

Fluid chamber is deformed inwards.

Preferably, the membrane forms a container wall of

Liquid chamber or at least a wall portion of the container wall of the liquid chamber.

The membrane is preferably elastically deformable.

In a particularly preferred embodiment of the odor-trap device, provision is made for a cap to be arranged on the outside of the liquid chamber above the membrane, which together with the membrane forms a pressure-equalizing chamber located outside the liquid chamber and separated by the membrane. The pressure compensation chamber advantageously influences the mechanical deflection of the membrane and thus the damping effect which the membrane or pressure surge reduction device as a whole exerts on excess pressure surges or negative pressure surges.

It is particularly advantageous if the pressure-equalizing chamber has a ventilation valve, to flow into the pressure equalization chamber through the at sub ^¬ pressure in the liquid chamber outside air and air from the pressure equalization chamber can be discharged to the outside through the at superatmospheric pressure in the liquid chamber. The damping effect of the membrane can be adjusted by adjusting the ventilation valve or specifically specify by setting the passage rate of the ventilation valve ^¬ .

Preferably, the membrane is arranged in the region of the container bottom of the liquid chamber or forms the Behälterbo ^¬ the liquid chamber.

In order to protect the inlet opening from excess pressure surges or vacuum surges, it is considered particularly advantageous if the membrane is arranged below the inlet opening.

It has been found by the inventor that overpressure surges or underpressure surges in the region of the discharge connection can lead to corrugation in the liquid present in the liquid chamber and to a spilling out of the liquid from the discharge connection. Such Wellenbil ^¬ tion or a "sea state" within the liquid chamber can be minimized if the inner cross-sectional area, in particular the inner diameter of the liquid chamber is at least three times as large as the inner cross-sectional area, in particular the inner diameter of the inlet tube.

In order to enable a simple emptying of the liquid chamber when decommissioning of the odor trap or a sewer system, which is equipped with such a smell closing device, it is considered advantageous if the liquid chamber has a shut-off located below the drain port, the in the open state Drainage of liquid from the liquid chamber, preferably a complete emptying of the liquid chamber allows.

The odor trap device preferably comprises an inlet tube for filling a liquid into the liquid chamber. The inlet opening of the inlet pipe forms ^¬ preference, the inlet opening of the odor seal device and is preferably arranged below the drain port. The drain connection preferably allows a flow of the Liquid from the liquid chamber, as soon as the liquid ^¬ keitsstand in the liquid chamber reaches a predetermined minimum level. The invention also relates to a sewage system (or sewage system). According to the invention, it is provided with regard to such a wastewater treatment plant that it is equipped with an odor closure device, as has been described above.

The invention also relates to a vehicle, in particular rail vehicle. According to the invention of such a vehicle is provided with respect to that this is equipped with a Ge ^¬ ruchsverschlusseinrichtung, as has been described above.

The invention will be explained in more detail with reference to Ausführungsbeispie ^¬ len; 1 shows an exemplary embodiment of an inventive

Odor closure device, which is equipped with a pressure reduction device, a refill device and a drain valve, Figure 2 shows an embodiment of an inventive

Odor closure device without drain valve, an embodiment of an inventive odor trap device without pressure reduction device,

Figure 4 shows an embodiment of an inventive

Odor closure device, in which a pressure reduction device is formed solely by a membrane without an additional cap, and

FIG. 5 shows an exemplary embodiment of a vehicle that is equipped with a waste water system with an odor trap device according to the figures 1 to 4 is equipped.

For the sake of clarity, the same reference numbers are always used in the figures for identical or comparable components.

FIG. 1 shows an odor trap 10 in the form of a pot siphon. The odor trap 10 includes, among other things, an inlet tube 20 that fits into a

Liquid chamber 30 of the odor trap 10 protrudes. The liquid chamber 30 is bounded on the outside by a container wall 40. A wall portion 41 of the container ^¬ wall 40 is formed by a membrane 50 which is elastically deformable.

Spatially above the inlet opening 21 of the inlet tube 20, the odor-trap device 10 is equipped with a drainage port 60, which drains one in the

Fluid chamber 30 located liquid F allows when the liquid level FS in the liquid chamber 30 reaches the level of the drain port 60.

The membrane 50 is covered on the outside by a cap 70, which is equipped with a ventilation valve 80. The membrane 50 and the cap 70 together define a pressure equalization chamber 90 which is disposed adjacent to the liquid chamber 30 and is mechanically coupled via the membrane 50 to the interior of the liquid chamber 30. As will be explained in more detail below, form the Memb ^¬ ran 50 and the pressure equalization chamber 90 together a pressure surge reducing device 100, with the pressure surges and vacuum surges can dampen at the drain port 60 and / or at the inlet port 21 of the inlet tube 20.

The odor trap 10 is further equipped with a refill 200. The refill device 200 has a liquid sensor 210, the over a control line 220 with a shut-off device in the form of an inlet valve 230 is in communication. The inlet valve 230 may be, for example, an electrically switchable solenoid valve which can be switched on or off via an electrical control signal ST. The inlet valve 230 connects an outside of the liquid chamber 30 befindli ^¬ chen portion 21 of the inlet tube 20 with a Frischwas ^¬ water pipe 240. The trap device 10 according to Figure 1 is also equipped with a shut-off device in the form of a drain valve 300 which in the open state a drainage of the in the liquid chamber 30 located liquid F allows.

The odor trap 10 of Figure 1 operates as follows:

If there are excess pressure surges DS1 or negative pressure surges DS2 in the discharge line 61 connected to the drain connection 60, these are damped by the pressure reduction device 100. The damping of the pressure surges DS1 and the Un ^¬ terdruckstöße DS2 is effected by a mechanical deflection of the membrane 50:

In the case of a pressure surge DS1 at the drain port 60, the membrane 50 is deflected along the direction of the arrow PI downwards or in the direction of the cap 70, whereby the volume is increased within the liquid chamber 30 and the effect of the pressure surge is reduced.

In a corresponding manner, vacuum surges DS2 are damped by deflecting the membrane 50. Thus, FIG. 1 shows that the membrane 50 is deflected upward in the direction of the arrow P2 in the event of a vacuum shock DS2, as a result of which the volume inside the liquid chamber 30 is reduced and the effect of the vacuum surge is reduced. The deflection movement of the membrane 50 along the direction of the arrow PI or P2 is determined in the embodiment of Figure 1 not only by the membrane 50 and the pressure surges acting on this, but also by the pressure equalization chamber 90 and the ventilation valve 80; because these components to ^¬ th also attenuate over the internal pressure in the pressure equalization chamber 90, the diaphragm movement. By adjusting the air flow rate through the ventilation valve 80, the damping characteristic can thus be set and optimized in a targeted manner.

As stated inventor other, it 100 may come to a seegangähnlichen wave formation on the surface of the liquid F in the liquid chamber 30 at superatmospheric pressure ^¬ surges DS1 and negative pressure surges DS2 despite the compensation effect of the pressure reduction means so that it of a spillover of the liquid F in the direction Drain connection 60 and may come to an unwanted level loss in the liquid chamber 30. Such a sea-wave-like wave formation within the liquid chamber 30 can - as the inventor was found - reduce ^¬ ren, if the geometry of the liquid chamber 30 and the inlet tube 20 is suitably selected. As especially before ^¬ part way it is considered in this context, when the inner cross-sectional area, in particular the inner diameter D of the liquid chamber 30, at least three times as large as the inner cross-sectional area, in particular the inner ^¬ diameter d, of the inlet pipe 20 is. If the odor-trap device 10 is used in a vehicle, in particular a rail vehicle, it is considered advantageous if it is possible to empty the liquid chamber 30 in the event of a decommissioning of the vehicle in order to freeze liquid F in the liquid chamber 30 and destroy the liquid To avoid odor closure device 10. An emptying of the

Liquid chamber 30 is possible in the odor trap 10 according to Figure 1 through the check valve 300, in the opened state, a drainage of the liquid F, preferably a complete emptying of the liquid chamber 30, allows. FIG. 2 shows an exemplary embodiment of an odorless ^closure device 10, which essentially corresponds in terms of its construction to the odor-sealing device 10 according to FIG. In contrast to the odor-trap device 10 according to FIG. 1, the odor-trap device 10 according to FIG. 2 lacks a drain valve 300, as has been explained in connection with FIG. Incidentally, the above explanations in connection with the odor trap 10 according to FIG. 1 apply correspondingly to the odor trap 10 according to FIG.

FIG. 3 shows an exemplary embodiment of an odor ^closure device 10, which essentially corresponds in terms of its structure to the odor closure device 10 according to FIG. In contrast to the odor-trap device 10 according to FIG. 1, the pressure-reducing device 100, as has been explained in connection with FIG. 1, is missing from the odor-trap device 10 according to FIG. Incidentally, the above explanations in connection with the odor trap 10 according to FIG. 1 apply correspondingly to the odor trap 10 according to FIG.

4 shows an exemplary embodiment of an odor ^¬ shutter 10, in which a pressure reducing device 100 is formed exclusively by a membrane designed as stalteten wall portion 41 of the container wall 40 of the liquid ^¬ keitskammer 30th An additional Druckaus ^¬ same chamber adjacent the liquid chamber 30 is absent in the odor seal device 10. In the case of pressure shocks DS1 or negative pressure surges DS2 at the outlet port 60, the wall portion 41 and the membrane 50 along the direction of the arrow PI to the outside or along the direction of the arrow P2 will bulge inwards which Increased lumen or a reduction in volume and the effect of the pressure surges is attenuated amplitude. Incidentally, the above statements apply correspondingly in connection with FIG.

5 shows an exemplary embodiment of a rail ^¬ vehicle 500. One recognizes a sewage plant or from ^¬ water system 510 which, inter alia, a waste water inlet Stel ^¬ le 520 and includes a sewage holding tank 530 in the form of a gray water tank. The sewage collecting tank 530 is equipped with a vent pipe 531.

The waste water inlet 520 and the wastewater collecting tank 530 are connected via an odor trap 10, the inlet pipe 20 of which is connected to a first waste water line 540 and whose outlet 60 is connected to a second waste water line 550.

The first sewer line 540 connects the waste water inlet 520 with the odor trap 10 and the second sewer 550 connects the odor trap ^{¬ device} 10 with the waste water collection container 530th

If pressure surges DS1 or pressure surges DS2 occur in the case of tunnel journeys, they are conducted via the venting pipe 531 into the wastewater collecting vessel 530 and from there to the odor-sealing device 10.

Preferably, in the water seal device 10 to such, as has been explained in connection with Figures 1 to 4, or at least an odor seal device with a pressure reducing device, the incoming positive pressure surges DS1 or sub ^¬ pressure surges DS2 attenuates as above has been explained in connection with FIGS. 1 to 4.

Although the invention in detail by preferred execution ^¬ examples further illustrated and described, as is the The invention is not limited by the examples disclosed, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.

Claims

claims

1. odor stopper (10), in particular siphon, with a liquid chamber (30), wherein in the liquid chamber (30) located liquid (F) with sufficient

Liquid level (FS) forms an odor trap between an inlet opening (21) and a drain port (60) of the odor trap device (10),

characterized in that

the odor-trap device (10) comprises a refill device (200) for the automatic refilling of liquid (F) into the liquid chamber (30),

- wherein the refilling device (200) is designed such that it triggers an automatic refilling of liquid (F) in the liquid chamber (30) when the

Liquid level (FS) in the liquid chamber (30) ei ^¬ nen predetermined minimum liquid level falls below.

2. odor trap device (10) according to claim 1, characterized in that

the refill assembly (200) comprises a liquid sensor (210), the fluid level falls below the predetermined minimum in the liquid chamber (30) STEU ^¬ ersignal (ST) is generated.

3. odor trap device (10) according to any one of the preceding claims,

characterized in that

the refilling device (200) has a controllable obturator, which in the opened state permits a liquid flow in the direction of the liquid chamber (30) and, in the closed state, blocks a liquid flow in the direction of the liquid chamber (30).

4. odor trap device (10) according to claim 3, characterized in that

- The obturator directly or indirectly with the

Liquid sensor (210) is connected and

- The obturator in the presence of a falling below the predetermined minimum fluid level in the

Fluid chamber (30) indicating control signal (ST) of the liquid sensor (210) switches to its open state.

5. odor trap device (10) according to one of the preceding claims,

characterized in that

the predetermined minimum fluid level corresponds to a fluid level (FS) between the inlet opening (21) and the outlet port (60).

6. odor trap device (10) according to any one of the preceding claims,

characterized in that

the obturator is an electrically controllable obturator and the liquid sensor (210) generates as control signal (ST) an electrical control signal (ST).

7. odor trap device (10) according to any one of the preceding claims,

characterized in that

the obturator is arranged such that it in the open state, a liquid flow in one outside the

Fluid chamber (30) located portion of the inlet tube (20) permits.

8. odor trap device (10) according to one of the preceding claims,

characterized in that

the shut-off is in communication with a fresh water line and in the open state, a fresh water flow into the liquid chamber (30) or in an outside of the

Fluid chamber (30) located portion of the inlet tube (20) permits.

9. odor trap device (10) according to any one of the preceding claims,

characterized in that

the inner cross-sectional area, in particular the inner ^¬ diameter (D), the liquid chamber (30) at least three times as large as the inner cross-sectional area, in particular in ^¬ nendurchmesser (d) of the inlet pipe (20).

10. odor trap device (10) according to any one of the preceding claims,

characterized in that

the liquid chamber (30) includes a below the Ablaufanschlus- ses (60) befindliches obturator (F) from which a drainage of liquid in the geöffne ^¬ th state

Liquid chamber (30), preferably a complete emptying of the liquid chamber (30) allows.

11. odor trap device (10) according to any one of the preceding claims,

characterized in that

the odor-trap device (10) has a pressure-surge reduction device (100) which generates a positive or negative pressure surge (DS1, DS2) at the discharge port (60) or at the inlet port (21) of the inlet tube (20) by increasing or decreasing the volume of the liquid chamber (30) dampens.

12. odor trap device (10) according to claim 11, characterized in that

the pressure surge reducing device (100) is formed by or comprises a membrane which, in the event of an overpressure shock (DS1), increases the volume of the

Liquid chamber (30) deformed outwardly and in the case of a vacuum shock (DS2) with the reduction of the volume of the liquid chamber (30) is deformed inwards.

13. Odor closure device (10) according to one of the preceding claims,

characterized in that

the odor-trap device (10) comprises an inlet tube (20) for introducing a liquid (F) into the liquid chamber (30),

a pipe opening of the inlet pipe (20) forms the inlet opening (21) of the odor-sealing device (10),

- The inlet opening (21) below the drain port (60) is arranged and

- The drain port (60) allows the liquid (F) (F) to flow out of the liquid chamber (30) when the liquid level (FS) in the liquid chamber (30) reaches a minimum level.

14. sewage plant,

characterized in that

the sewage plant, in particular in a section between a waste water ^{inlet point} (520) and a waste water collecting ^¬ container (530) is equipped with an odor trap device (10) according to one of the preceding claims.

15. Vehicle, in particular rail vehicle (500),

characterized in that

the vehicle, in particular in a section between a waste water inlet (520) and a waste water collecting tank (530), is equipped with an odor trap device (10) according to one of the preceding claims.