CN210391147U

CN210391147U - Ash water treatment device for rail vehicle

Info

Publication number: CN210391147U
Application number: CN201790001253.8U
Authority: CN
Inventors: F.克默林; T.库贝克
Original assignee: Siemens AG
Current assignee: Siemens AG; Siemens Mobility GmbH
Priority date: 2016-09-20
Filing date: 2017-09-13
Publication date: 2020-04-24
Anticipated expiration: 2027-09-13
Also published as: PT3487743T; ES2808127T3; PL3487743T3; WO2018054738A1; EP3487743B1; RU194282U1; EP3487743A1; DK3487743T3; DE102016218001A1

Abstract

Greywater treatment device for rail vehicles, having a greywater reservoir (1), a greywater inlet (2), an outlet (3) for filtered greywater and a filter (9) between the greywater inlet (2) and the outlet for filtered greywater, characterized in that the greywater reservoir (1) has at least one externally closable removal opening (4) arranged on the bottom side for manual maintenance of the greywater reservoir (1).

Description

Ash water treatment device for rail vehicle

Technical Field

The utility model relates to a grey water treatment equipment for rail vehicle, it has grey water container, grey water entry, is used for the export of filtered grey water and at the grey water entry and be used for the filter between the export of filtered grey water.

Background

Such a greywater treatment device is known from DE 102013205084B 3. The greywater treatment device is arranged for use in a sanitary area of a rail vehicle. Grey water from the wash basin can not only be conducted off onto the rail or to the waste water tank, but also be collected, processed and supplied as flush water to the toilet module.

Grey water that accumulates in vehicle galleys, on the other hand, often contains food waste and dissolved grease and therefore cannot be conducted directly to the rails. Thus, grey water is typically accumulated in a grey water reservoir or a waste water reservoir. The greywater or waste water container is periodically pumped, for example every 3 days, all water remaining in the greywater or waste water container before that. Special suction equipment is required for suction.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved of the utility model is to propose a treatment facility of low-cost operation of grey water for on-vehicle kitchen.

According to the utility model discloses a rail vehicle includes that at least one is according to the utility model discloses a treatment facility. The greywater treatment device for a rail vehicle according to the invention comprises a greywater reservoir which has at least one greywater inlet, in particular in an inlet region of the greywater reservoir, at least one outlet for filtered greywater, in particular in a discharge region of the greywater reservoir, at least one filter between the greywater inlet and the outlet for filtered greywater, in particular between the inlet region and the discharge region, and a removal opening which can be closed off from the outside for manual maintenance of the greywater reservoir, which removal opening is arranged on the bottom side, in particular in the inlet region of the greywater reservoir. Furthermore, a removal opening which can be closed off from the outside can be used to guide the sediment separated off by the filter out of the greywater reservoir. The clearance opening is also accessible from the outside. For this purpose, the greywater reservoir is arranged in the rail vehicle so that the removal opening is freely accessible, so that the greywater reservoir can be cleaned manually. Depending on the filter type, it may also be constructed and arranged in a manner suitable for manual maintenance of the interior space of the greywater reservoir.

In a further development, the treatment device has a closure device which can be actuated from the outside for closing the closable removal opening, the closure device closing the removal opening in the bottom of the greywater container in the closed position and opening the removal opening in the open position. The closing device is sealed off from the greywater reservoir, in particular in the closed position.

The treatment device is suitably configured for use in an on-board galley of a rail vehicle. The on-board galley area of a vehicle is commonly referred to as an on-board galley. The treatment device is arranged, for example, below a sink, wash basin and/or dishwasher or in an underground area.

To determine when the grey water reservoir needs to be emptied, the fill level of the solids may be monitored. For this purpose, the treatment device may comprise at least one level sensor, which is arranged in particular in the inlet region of the greywater reservoir. The fill level sensor can be designed to detect at least one limit position of the solids at least in the feed region of the greywater reservoir. Furthermore, the fill level sensor can be designed to generate a signal as a function of the detected limit or fill level and to output this to a vehicle control unit of the rail vehicle. The reaching of the predetermined limit is therefore signaled, in particular, to the vehicle control unit. The signal of the vehicle control unit can be transmitted, in particular, for the purpose of planning the emptying of the greywater reservoir, for example by way of a remote data transmission message to a device on the land side, for example a workshop or a warehouse.

The solids are separated from the liquid phase, in particular by sedimentation, and are deposited as a precipitate on the bottom. Depending on the type of filtration, the deposit of solid particles to be filtered is also referred to as filter residue. The treated filtered grey water is free of sediment or solid particles of a predetermined minimum size. The remaining deposited sediment may naturally also comprise a portion of liquid. The fill level sensor is therefore, according to a development of the invention, suitably designed for detecting at least one limit position of the greywater having a predetermined solids loading in the greywater reservoir, in particular in the input region of the greywater reservoir. The degree of solids loading of the greywater or the concentration of solids in the greywater should in particular not exceed 80% in order to identify the preset limit as a solids limit when it is reached.

By filtering and accumulating the solids in the greywater reservoir, the suction or removal interval of the greywater reservoir can be significantly extended. The filtered grey water may be discharged onto the railroad bed. Thereby maintaining a small volume of the greywater reservoir.

According to an advantageous further development of the invention, the greywater reservoir comprises a movable floor section as a closure device, the floor section being arranged on the greywater reservoir such that the floor section forms part of the bottom of the greywater reservoir in the moved-in position and closes the removal opening in the bottom of the greywater reservoir, and the floor section opens the removal opening in the moved-out position. The removed position thus corresponds to the open position. Similarly, the moved-in position corresponds to the closed position.

In an embodiment, the greywater reservoir has a guide for guiding the movable floor section, which may be arranged, for example, on a side wall of the greywater reservoir. The guide rail serves to guide the movable floor segment along the guide rail, in particular parallel to the bottom of the greywater reservoir in the region of the movable floor segment, when the movable floor segment is moved.

A further development provides that the greywater container has a scraper which is directed toward the movable floor section, in particular is elastic, and is prestressed against the surface of the movable floor section which is directed toward the interior of the greywater container, said scraper being designed to strip off any deposits on the movable floor section, in particular on the surface of the movable floor section which is directed inward into the greywater container, when the movable floor section is moved from the insertion position into the removal position.

In order to preferably seal the movable floor section in a watertight manner with respect to the greywater reservoir, at least one seal can be provided between the movable floor section and the greywater reservoir, said seal being prestressed against the two components in the retracted position.

The valve is suitable as an alternative closure device, which is arranged on the greywater reservoir such that it forms part of the bottom of the greywater reservoir in the closed position and closes the removal opening, and releases the removal opening in the open position. The flap, which is an alternative to the movable floor segment, makes it more difficult to remove the deposits because it is not possible to provide the scraper in the same simple manner. Furthermore, the flap requires a comparatively large space below the greywater reservoir. The closed position corresponds in turn to the closed position of the closure device, while the open position of the closure device corresponds to the open position.

In an embodiment, a collecting container for receiving the sediment from the greywater container separated by the filter is arranged below the closable removal opening. The filtered precipitate is also referred to as filter residue.

A further variant of the invention provides that the greywater container has at least one purging outlet in the outlet region. The clean-up outlet is designed in an improved manner for discharging at least slightly solids-laden grey water from the grey water reservoir, and the clean-up outlet is arranged in the grey water reservoir. The bottom of the greywater reservoir is in particular designed to be raised from the inlet region to the outlet region. The scavenge drain is advantageously arranged at the bottom of the greywater reservoir at the deepest location in the output area.

In an embodiment, the filter comprises at least two baffles which are arranged opposite one another, are stacked in a horizontal direction and are spaced apart from one another in a vertical direction, wherein the upper baffle is arranged in particular on the top side and extends in the direction of the bottom of the greywater container, and wherein the crotch is arranged in particular on the bottom side and extends in the direction of the top of the greywater container. A filter constructed in this way is also referred to as a baffle filter. Having mutually oriented or mutually extending baffles with a gap of a predetermined size between the baffles. At least two baffles are provided, with exactly two baffles being provided. The gap has its preset width in the horizontal direction. The lower flap or the lower flaps may also be designed as movable slides.

In a further development of the invention, the outlet for filtered greywater, which is arranged in particular in the outlet region, has an opening for the filtered greywater to pass through, which opening is arranged at a distance from the bottom of the greywater reservoir. The opening of the outlet is thus elevated with respect to the bottom of the greywater reservoir.

For example, the outlet has a pipe which is guided through the bottom of the greywater reservoir and projects into the greywater reservoir. The opening of this outlet is correspondingly the opening of the tube in the greywater reservoir. The outflow opening above the bottom has the advantage that the outflowing, treated greywater is unlikely to carry sediment that has settled at the bottom. The outlet for the filtered greywater may also serve as an overflow for the greywater reservoir. The grey water flows freely through the flow outlet, in particular onto the track bed. Optionally, a discharge valve is provided downstream of the outlet for regulating the flow through the outlet.

In a further development of the invention, the filter comprises a permeable membrane, in particular a screen, for filtering solid particles of a predetermined size out of the greywater. Filtration through a permeate membrane is summarized in the term membrane separation process.

In this case, a sieve is conceivable in addition to the baffle filter, which sieve is arranged in particular above the lower baffle. It is also possible to use a permeable membrane instead of a baffle filter.

The filter is used for filtering particles from the greywater that are larger than a predetermined minimum size. The filter is suitably designed accordingly, and is configured, for example, as a mesh with a predetermined mesh opening for separating solids of a predetermined minimum size from the liquid.

The separation of the waste water into filter residue and liquid filtrate by means of the filter medium is also referred to as filtration. In this case, in particular solids entrained in the liquid are separated from the liquid. The filter medium (also called filter in spoken language) retains the solids in the liquid. The solids-free phase is referred to as filtrate in the case of liquid filtration. The solids retained on the surface of the filter medium, for example on a mesh, are called filter cake, as was done above. If this cake falls from the filter and accumulates on the bottom, it is called sediment or simply just solids.

Furthermore, a fresh water inlet for delivering fresh water can be arranged, in particular, on the top side, in particular in the outlet region. The fresh water inlet can be used for cleaning the greywater reservoir, for example in order to flush out the sediment when the removal outlet on the input area side is opened and when the slide of the baffle filter is raised. The fresh water inlet can be configured as a nozzle in order to also clean the side wall of the greywater container and/or the filter. For this purpose, the nozzles can be designed to emit a water jet which impinges directly on the side wall of the greywater reservoir and/or on the filter.

The advantage of the utility model lies in the simplified washing of grey water container. The half-full tank is no longer pumped. Thereby, the so-called life cycle costs are significantly minimized.

Drawings

The utility model discloses a large amount of implementation modes can be realized. The embodiments are explained in detail with the aid of the following figures, in which design examples are shown.

In fig. 1, a greywater treatment device according to the invention is schematically illustrated in a longitudinal sectional view.

Detailed Description

The greywater reservoir 1 comprises a greywater inlet 2 in an inlet area 7, an outlet 3 for filtered greywater in a discharge area 8, a filter 9 for filtering out solids from the greywater between the greywater inlet 2 and the outlet 3 for filtered greywater, and a level sensor 10 in the inlet area 7.

The level sensor 10 is designed here as a limit switch in the form of a frequency-difference level sensor and is arranged at a predetermined height above the bottom 15 of the inlet region 7 of the greywater reservoir 1 in order to detect a predetermined limit for solids in the greywater reservoir 1. The height of the predetermined limit for the solids in greywater reservoir 1 is equal to the height of level sensor 10 above bottom 15 of greywater reservoir 1. The solids are filtered out of the greywater by the filter 9 and caught (filter residue) and settle on the bottom, known as sediment. The deposited solid is herein designated by reference numeral 11.

The outlet 3 has a pipe 16 which leads through the bottom 15 of the greywater reservoir 1 and projects into the greywater reservoir 1. This outlet simultaneously serves as an overflow outlet. The outlet opening ends in this design example above a preset limit for the solids in greywater reservoir 1. The pipe 16 ends on the other side, usually above the rail of the rail vehicle, on which the filtered greywater is discharged. The pipe piece has an outlet end 18. Alternatively, the filtered greywater may also be delivered as flushing water to a greywater consumer, for example a toilet of a rail vehicle. Downstream of the pipe 16 of the outlet there may be a discharge valve 17 for regulating the flow of filtered greywater through the outlet 3.

A baffle filter with a fixed upper baffle 13 and a fixed lower baffle 12, which upper baffle is fixedly connected to greywater reservoir 1 and is arranged rigidly in greywater reservoir 1 on the top side and extends in the direction of the bottom 15 of greywater reservoir 1, is used here as filter 9; the lower baffle is here likewise fixedly connected to greywater reservoir 1 and is arranged rigidly in greywater reservoir 1 on the bottom side and extends in the direction of the top of greywater reservoir 1.

The fill level sensor 10 is arranged here at a predetermined height above the bottom 15 of the inlet region 7 of the greywater reservoir 1, which is located below the lower side of the upper baffle 13 and above the upper side of the lower baffle 12. Thus, when level sensor 10 detects a preset limit for solids of greywater reservoir 1, more solids may also be deposited in greywater reservoir 1, i.e. the solids have not yet reached filter 9 and thus filter 9 is not clogged by solids. A common height difference may be determined in the following manner, which height difference depicts the average amount of solids deposited per day.

In addition, a permeable membrane 14 is arranged above the lower baffle 12 for filtering solid particles of a predetermined size out of the greywater. The permeable membrane is connected here to the upper side of the lower baffle 12 and to the top of the greywater reservoir 1 and also extends over the entire width of the greywater reservoir 1 in the plane of the drawing or between the side walls of the greywater reservoir.

The sediment deposits 11 occur here both in the inlet region 7 and in the outlet region 8. However, the sediment deposits in the outlet region 8 are significantly smaller. In order to discharge, in particular to suck, the sediment in the discharge area 8, the greywater reservoir 1 comprises a bottom-side removal outlet 5. If necessary, the purge outlet 5 in the outlet region 8 can also be dispensed with. The purge outlet opens in this embodiment into a suction line, which can be connected to the suction device via a closure device 19, for example a ball valve.

Furthermore, a scavenge port 4 is provided in the bottom 15 of the input area 7 of the greywater reservoir 1. The purge port may be of a size suitable for manual maintenance and/or manual purging when necessary. For opening and closing the removal opening 4 from the outside, the floor section 22 of the greywater reservoir 1 is movably constructed. The floor section 22 closes the removal opening 4 in the bottom 15 of the greywater container 1 in the retracted position. For gripping and displacement, the base plate section 22 has a handle-like projection 21 on the outside of the greywater reservoir.

The movable floor segment 22 is guided along laterally arranged guide rails 24. In the moved-in position, the movable floor segment 22 is sealed off from the greywater reservoir 1.

Below the closable removal opening 4, a collection container 23 is arranged for receiving the sediment separated by the filter 9. When the closable removal opening 4 is opened by moving the movable floor segment 22 from the moved-in position into the moved-out position, the sediment 11 thus simply falls into the collection container 23.

A scraper 20 is arranged on the end wall in the inlet region 7 of the greywater reservoir 1, which scraper is prestressed against the movable floor segment 22 and can therefore strip off the adhering matter on the movable floor segment 22 when the movable floor segment 22 is moved from the retracted position into the extended position.

Furthermore, the rinsing nozzles are arranged in the top side as fresh water inlets 6 for the delivery of fresh water in the outlet region 8.

Claims

1. Greywater treatment device for a rail vehicle, having a greywater reservoir (1), a greywater inlet (2), an outlet (3) for filtered greywater and a filter (9) between the greywater inlet (2) and the outlet (3) for filtered greywater, characterized in that the greywater reservoir (1) has at least one removal opening (4) arranged on the bottom side, which can be closed from the outside, for manual maintenance of the greywater reservoir (1).

2. The treatment apparatus according to claim 1, characterized in that it comprises a movable floor section (22) which in the moved-in position forms part of the bottom (15) of the greywater container (1) and closes the removal opening (4), and which in the moved-out position opens the removal opening (4).

3. A treatment device according to claim 2, characterized in that the greywater reservoir (1) comprises a guide rail (24) for guiding the movable floor section (22).

4. A treatment device according to claim 2, characterized in that the greywater reservoir (1) has a scraper (20) directed towards the movable floor section (22), which scraper is configured for stripping off adhering substances on the movable floor section (22) when moving the movable floor section (22) from the moved-in position to the moved-out position.

5. A treatment device according to claim 2, characterized in that the movable floor section (22) is sealed in the moved-in position with respect to the greywater reservoir (1).

6. A treatment device according to claim 1, characterized in that it comprises a collection container (23) for containing the sediment separated by the filter (9), which collection container is arranged below the closable removal opening (4).

7. A treatment device according to claim 1, characterized in that the greywater inlet (2) is arranged in an input area (7) of the greywater reservoir (1), the outlet (3) for filtered greywater is arranged in a discharge area (8) of the greywater reservoir (1), and the filter (9) is arranged between the input area (7) and the discharge area, wherein the scavenge port (4) is arranged in the input area for manual maintenance of the input area (7) of the greywater reservoir (1).

8. A treatment device according to claim 1, characterized in that the greywater inlet (2) is arranged in an input area (7) of the greywater reservoir (1), the outlet (3) for filtered greywater is arranged in a discharge area (8) of the greywater reservoir (1), and the filter (9) is arranged between the input area and the discharge area, wherein the greywater reservoir has a scavenge drain (5) in the output area.

9. A treatment apparatus according to claim 8, characterized in that the bottom (15) of the greywater reservoir (1) is constructed elevationally from the inlet area (7) towards the outlet area (8), and that the scavenge drain (5) is arranged at the deepest position of the bottom (15) of the greywater reservoir (1) in the outlet area (8).

10. Treatment apparatus according to claim 1, characterized in that the filter (9) comprises at least two baffles (12, 13) arranged opposite each other, stacked in horizontal direction and vertically spaced from each other.

11. A treatment device according to claim 1, characterized in that the outlet (3) for filtered greywater has an opening for passing filtered greywater through, which opening is arranged spaced from the bottom (15) of the greywater reservoir (1).

12. A treatment plant according to any of claims 1-11, characterized in that the filter (9) comprises a permeable membrane (14) for filtering solid particles of a preset size from the grey water.

13. A rail vehicle, characterized by at least one processing device according to any one of claims 1 to 12.