EP2250063A1 - Ventilatoranordnung für gravitätische flüssigkeitsabfuhr mit der über- und unterdruckphase - Google Patents
Ventilatoranordnung für gravitätische flüssigkeitsabfuhr mit der über- und unterdruckphaseInfo
- Publication number
- EP2250063A1 EP2250063A1 EP09708044A EP09708044A EP2250063A1 EP 2250063 A1 EP2250063 A1 EP 2250063A1 EP 09708044 A EP09708044 A EP 09708044A EP 09708044 A EP09708044 A EP 09708044A EP 2250063 A1 EP2250063 A1 EP 2250063A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- pressure
- medium
- gravity
- environment
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D35/00—Sanitation
- B61D35/005—Toilet facilities
- B61D35/007—Toilet facilities comprising toilet waste receiving, treatment, storage, disposal or removal devices
-
- 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
- E03C1/28—Odour seals
- E03C1/298—Odour seals consisting only of non-return valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
- F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form
Definitions
- Valve arrangement for gravitational liquid discharge with the overpressure and underpressure phase
- the invention relates to a device for the removal of a liquid medium from a relative to an environment pressure-damped space in the environment.
- a pressure-damped space is to be understood as a complete, but at least substantially closed to the environment space, but which may also have closable openings, such as doors and windows in a train car.
- Pressure damping is understood in the context of the present application so that at least briefly a pressure difference between the pressure-damped space and an environment can occur.
- this pressure difference can be, for example, up to about ⁇ 9 kPa, which corresponds to a water column of 900 mm.
- a suitably dimensioned siphon with an installation height of 900 mm there is often insufficient space available. In particular, when used in train cars such mounting dimensions are difficult to achieve.
- Another problem is that at the bottom of the siphon contaminants can accumulate and blockages can occur. This danger exists in particular if, for example, food scraps are disposed of via the device.
- Another problem is that such a system can not be emptied. For example, in the pipe system of a train water to be emptied when the car is temporarily taken out of service.
- a valve assembly for the removal of a liquid medium from a pressure-dampened environment to a room in the environment, comprising an inlet opening, which is in installation position with the pressure-damped space in gas pressure communication, an installation position in the direction of gravity below the inlet opening outlet opening which is in gas-pressure communication with the environment in the installation position, a communication passage connecting the inlet port to the outlet port, a backflow prevention valve configured to let the liquid medium flow through from the inlet to the outlet port under gravity, and exceeding a predetermined one in FIG Close prevailing gas overpressure against the pressure-dampened space, a flow prevention valve, which is designed to effet Kunststoffläss the liquid medium under the influence of gravity from the inlet to the outlet opening and close when a predetermined, prevailing in the pressure-damped space gas overpressure to the environment.
- the valve arrangement according to the invention is characterized, inter alia, by the fact that the flow of the liquid medium through the connecting channel in both directions is enabled or disabled depending on the pressure conditions in the pressure-damped space and in
- the environment refers to the area outside the pressure-dampened area. These may also be separate rooms in this environment, such as a sewage collection tank.
- the removal of the liquid medium through the valve assembly is effected by gravity, that is, in the installed position of the valve assembly, the liquid medium to be discharged flows through the valve assembly from an upper pressure-damped space down into the environment.
- the following information on the position of elements of the valve arrangement therefore relate to the installation position of a valve arrangement according to the invention, in which the direction of gravity points downward.
- the valve arrangement according to the invention has a connection channel which connects an upper inlet opening to a lower outlet opening.
- the inlet opening opens into the pressure-damped space and the outlet opening into the environment or, for example, a sewage collecting container arranged in the vicinity.
- the connection channel may be a common pipe made of different materials, for example a circular cross-section.
- the inlet opening can be, for example, the drain of a hand-washing or rinsing basin from which the greywater is to be disposed of. From such a basin of the connecting channel preferably extends substantially vertically downwards. However, the connecting channel can also run obliquely, as long as a gravity-driven removal of the liquid medium is possible.
- the valve assembly according to the invention has a backflow prevention valve, with which a backflow of the medium against the direction of gravity from the outlet to the inlet opening can be prevented in such a case.
- the liquid medium under gravitational influence can pass the backflow prevention valve from top to bottom.
- the non-return valve may be formed as a conventional in fluid technology directional control valve, which automatically blocks the passage of the medium in the flow direction from the outlet to the inlet opening.
- Such valves are also referred to as check valves.
- valve arrangement according to the invention has a flow prevention valve, which can prevent the flow of the medium in the flow direction from the inlet to the outlet opening.
- the liquid medium can flow through the connection channel both in the direction from the inlet to the outlet opening and vice versa.
- the flow-obstruction valve may at least temporarily block the communication channel so that the liquid medium can not pass through the communication channel.
- the valve arrangement according to the invention can thus block flow of the liquid medium through the valve arrangement both when the gas pressure in the environment is higher than in the pressure-damped space and when the prevailing gas pressure in the environment is lower than in the pressure-damped space.
- gas overpressure compared to the pressure-damped space closes the backflow prevention valve and at a prevailing in the pressure-dampened space gas overpressure relative to the environment, the flow prevention valve.
- the flow is ensured.
- valve arrangement according to the invention therefore avoids the problems occurring in the case of pressure differences via an overpressure and underpressure barrier. As soon as the pressure differences are compensated, the valve arrangement according to the invention again enables the flow of the liquid medium through the connection channel from the inlet opening to the outlet opening. This also ensures that the arrangement is self-draining with balanced Druckverphaseitnissen Druckgedärnpftem space and environment.
- the valve assembly according to the invention has the further advantage that it has only a small height and a small space requirement, since, for example, no water pressure column corresponding to the pressure differences occurring must be provided.
- the media-conducting channels of both the non-return valve and the flow-preventing valve are preferably made of elastic materials, in particular the dirt and Fremd Economicsableitenden properties of the valve assembly according to the invention can be improved.
- the valve assembly according to the invention also has the advantage that it can be produced and installed cost-effectively. Also, existing devices for the removal of a liquid medium from a pressure environment with respect to a compressed environment in the environment can be retrofitted with a valve assembly according to the invention easily and inexpensively.
- the invention is preferably developed in that the flow prevention valve is arranged in the installed position in the direction of gravity below the backflow prevention valve.
- This embodiment has the advantage that the backflow prevention valve can be arranged close to the inlet opening, so that a backflow can also be substantially prevented by the medium located in the connection channel. This is particularly advantageous when the valve assembly is used for example for the removal of gray water from a hand wash or sink. When the backflow prevention valve is located above the flow prevention valve, greywater present in the valve assembly is prevented from flowing back up into the pool, which may cause soiling around the pool.
- the invention can be further developed in that the backflow prevention valve as Duckbillventil with an input, in the installed position in the direction of gravity in the direction of gravity from the input downwardly facing and tapered in this direction flat grommet with two side walls of an elastic material, and in an installed position in the direction of gravity from the input to formed bottom facing output.
- the flat spout forms in its interior a first media-conducting channel between the entrance and the exit and the side walls are biased so that they are pressed against each other in a first Steiiu ⁇ g at least in sections.
- the first media-conducting channel is therefore at least partially closed in this first position, if no medium flows through the inlet into the duckbill valve or if medium hits the duckbill valve from the outlet.
- the side walls are at least partially detached from each other.
- the first media-conducting channel is therefore at least partially released in this second position when medium flows through the inlet into the duckbill valve.
- a duckbill valve is a valve whose media-conducting elements are essentially made of an elastic material, preferably an elastic plastic.
- the elastic material of the duckbill valve forms the wall of a channel through which the medium must flow from the entrance to the exit.
- This media-conducting channel is arranged within a connecting channel and typically has a smaller cross-section than the connecting channel.
- the inlet of the valve may be tuned to the shape of the connecting channel, which may be a circular cross-section pipeline.
- the designed as a flat envelope end preferably has a flattened shape.
- the two side walls preferably lie opposite each other substantially.
- a bias of the elastic material causes the side walls lie in a flattened shape to each other.
- the medium can flow in the direction of gravity from the inlet into the media-conducting channel tapering in the outgoing direction, reach between the prestressed side walls and overcome the bias, so that the flattened section opens at least partially and the medium can flow through the duckbill valve.
- the side walls of the media-conducting channel are preferably prestressed against one another, so that the medium can not pass from the outlet into the media-conducting channel. This juxtaposition is reinforced by the outlet pressure. A backflow of medium from the outlet to the inlet, which is caused by an overpressure at the outlet opposite the inlet, is thus prevented.
- the blocking effect of remindde- prevention valve is particularly useful if the prevailing in the surrounding gas pressure exceeds the pressure prevailing in the pressure-damped space gas pressure and thereby medium against the Suiwerkraftides from the output is pressed back in the direction of the input. From the exit side to the lower end of the duckbill valve and thus on the outer sides of the side walls of the media-conducting channel striking medium can increase the closing force of Duckbillventils in addition to the bias, so that the valve closes reliably when the medium against the direction of gravity from below hits the Duckbillventil.
- the Duckbillventil has the further advantage that it has substantially no dead space, which is prone to dirt deposits, but dirt and foreign components in the medium can pass the Duckbillventil well. Deposits and blockages can be avoided or reduced.
- a preferred development of the invention is characterized in that the flow prevention valve is designed as a hose valve having an input and a lying in the installed position in the direction of gravity below the input and an output between the input and the output within the connecting channel second media-conducting channel of a elastic material, wherein in the region of the flow-preventing valve between the second media-conducting channel and the connecting channel, a gas-filled gap is formed such that the second medium-conducting channel at least partially compressed and thus the flow-preventing valve is closed when a formed in the gas-filled gap gas pressure one in the second media-conducting channel prevailing gas pressure exceeds.
- the flow-preventing valve designed as a hose valve has a second media-conducting channel, which preferably has a smaller cross-section than the connecting channel and extends substantially coaxially with it and within this connecting channel.
- the media-conducting channel of the flow-preventing valve preferably extends between the inlet and the outlet of the flow-preventing valve.
- the inlet and outlet of the flow prevention valve are preferably each fluid-tightly connected to the connecting channel.
- This space is preferably gas-filled and can compress the elastic media-conducting channel so that flow of the medium through the flow-obstruction valve is prevented when the gas pressure in the space exceeds a gas pressure prevailing in the second media-conducting channel.
- the media channel may be any, for example, round or flat. Have th cross-section, which may vary depending on the flow and position of the valve, in particular depending on the formed in the media-conducting channel and the space between the gas pressure.
- the opening and closing of the flow prevention valve is preferably dependent on the pressure ratio of the pressure-damped space to the environment, and is preferably designed for the usually occurring pressure differences between the pressure-damped space and the environment.
- the flow-restriction valve is closed when the gas pressure in the gas-filled space and in the pressure-damped space is higher than in the environment.
- the gas-filled intermediate space is advantageously connected to a further space or a device, so that the gas pressure in the gas-filled gap can be changed.
- the gas pressure in the gas-filled space depends on the gas pressure formed in the other space.
- the gas-filled space is connected to a pressure regulating device, the gas pressure formed in the gas-filled space can be controlled. In such an arrangement, it is advantageous if the gas pressure control of the gas-filled gap depending on the current pressure conditions in the pressure-damped space and in the environment depends.
- This development according to the invention has the advantage that the flow prevention valve can be locked when the gas pressure in the pressure-damped space is greater than in the environment.
- the aforementioned training according to the invention has the further advantage that dirt and foreign matter from the medium in the direction of gravity can be easily removed by the hose valve down, since the hose valve has no dead spaces in the media-conducting channel in which deposits could accumulate. Dirt deposits and blockages of the valve can therefore be avoided or reduced.
- the invention is further developed in that the gas-filled intermediate space is in gas pressure communication with the pressure-damped space via a bypass pressure line.
- the gas-filled gap has a pressure-conductive connection with the pressure-damped space, so that the gas pressure in the gas-filled gap corresponds to the gas pressure in the pressure-damped space.
- This is preferably realized by a bypass pressure line that runs outside the connection channel.
- the gas-filled gap and the elastic media-conducting channel are preferably dimensioned so that the media-conducting channel is compressed and thus the flow-obstructing valve is closed when the gas pressure in the pressure-damped space - and thus also in the gas-filled space - exceeds the gas pressure in the environment.
- Such a gas pressure connection via a bypass pressure line realizes in a simple manner a dependence of the closing mechanism of the flow prevention valve on the pressure ratio in the pressure-damped space and the environment.
- the flow prevention valve is designed as a double Duckbillventil.
- the second media-conducting channel as a first, in the installed position in the direction of gravity from the entrance facing down and tapering in this direction flat spout with two first side walls of an elastic material and a mounting position in the direction of gravity from the input down facing end, and as a second, in the installed position in the direction of gravity from the output upwardly facing and tapered in this direction flat spout with two second side walls of an elastic material and in the installed position in the direction of gravity from the output upwardly facing end whose ends are fluid-tightly interconnected formed.
- the side walls of the first and / or second flat spout are biased so that they are at least partially against each other in a first position against each other and thus the second media-conducting channel is at least partially closed when no medium flows through the double Duckbillventil, and they are at least partially detached from each other in a second position and thus the second media-conducting channel is at least partially released when the medium flows through the double Duckbillventil.
- a flow prevention valve designed as a double pressure relief valve can essentially consist of two duckbill valves described above, which are fluid-tightly connected to each other at their flattened ends, so that a media-conducting channel is formed in the interior of the double pressure air valve.
- the elastic material of Doppelduckbillventils is biased so that in a neutral first position of the flow prevention valve when no medium flows through the connecting channel, the media-conducting channel is at least partially closed, ie that the side walls of at least one of, preferably both Flat envelopes abut each other.
- the two side walls of the first and / or second flat grommet preferably lie opposite each other substantially. Only by flowing through the connecting channel medium, the bias is overcome and brought the media-conducting channel in an open second position in which it is at least partially released, so that the medium can pass through the flow prevention valve.
- the flow prevention valve has a buffer, a shut-off ball arranged in the buffer whose density is smaller than that of the medium, and a closable opening at a lower end of the buffer in the installed position in the direction of gravity, whose diameter is smaller than the diameter of the shut-off ball is, wherein the shut-off ball, the buffer and the closable opening are arranged and dimensioned such that in a closed position of the flow-preventing valve, the shut-off ball cooperates with the opening and closes under gravity, and in an open position of the flow Ver - Obstruction valve, a volume of the medium can accumulate in the buffer, so that a buoyancy force the Absperrkugel float in the medium against gravity and the flow of the medium through the opening fr ei political.
- the flow prevention valve is designed such that the shut-off ball rests in a closed valve position on the opening and this closes, since the diameter of the shut-off ball is greater than that of the opening. In this state, the valve is when no medium flows through the connecting channel, since the shut-off ball comes to rest on the opening by gravity.
- the diameter, material and weight of the shut-off ball must be matched to the medium to be discharged.
- the Absperrkugel may for example be formed as a hollow ball.
- the medium When medium flows through the inlet opening in the connecting channel and reaches the buffer, the medium initially accumulates in the buffer, since the opening is closed by the Absperrkugel. Since the density of the shut-off ball is smaller than that of the medium, it acts on them by the accumulating medium buoyancy force acting against gravity, which causes the shut-off ball to float when the buoyancy force exceeds the force of gravity. By floating the shut-off ball in the medium, the opening is released and thus allows the flow of the medium in the direction of gravity through the flow prevention valve.
- the gas pressure in the pressure-damped space is greater than in the environment, this greater gas pressure via the connecting channel also acts on the shut-off ball and increases the gravitational force, so that the shut-off ball can be pressed onto the opening and the flow-preventing valve can be closed. If there is accumulated medium in the buffer, when a gas pressure in the pressure-dampened space with respect to the environment occurs, so the water can first drain in the buffer before the shut-off ball comes to rest on the opening. If medium flows again into the buffer from above, the shut-off ball can float up again in the accumulated medium.
- the ball may also be formed elastically deformable with a variable volume.
- the buoyancy force of such a ball is variable. If the gas pressure in the pressure-dampened room is greater than in the environment, the shut-off ball can be pressed onto the opening and the flow-preventing valve closed even if there is accumulated medium in the buffer, since the elastically deformable ball can also sink in accumulated medium, if a gas overpressure occurs in the pressure-damped space with respect to the environment.
- This further development variant has the advantage that contaminants and foreign bodies can be transported with the medium through the opening, so that dirt deposits and blockages can be prevented or reduced in particular by avoiding dead spaces. Furthermore, this training variant also requires only a small height, which is sufficient so that the shut-off ball can float in the cache. Furthermore, the BaII Ventiianordnu ⁇ g described is also inexpensive to manufacture, assemble or retrofit.
- the buffer is formed as a cross-sectional widening of the connecting channel, in which case the closable opening may have the same cross-section as the connecting channel.
- the closable opening may have a smaller cross section than the connecting channel.
- the Absperrkugel may have a smaller diameter than the connecting channel, as long as their diameter is greater than that of the closable opening.
- a connecting channel section above the closable opening as a buffer may be sufficient, in that a sufficiently small shut-off ball can float.
- the invention can be further developed in that the buffer is funnel-shaped, so that it tapers towards the opening disposed in its installed position in the direction of gravity of the lower end.
- a design of the intermediate storage device tapering towards the closable opening can facilitate the placement of the shut-off ball under the action of gravity on the opening. Furthermore, the positional stability of the shut-off ball on the opening can be improved by this further development form.
- the flow prevention valve has a latching input arranged at a mounting position in the direction of gravity in the upper end of the buffer, through which the liquid medium enters the buffer, and is characterized in that the buffering input and the blocking ball are arranged so that the medium entering the flow-obstruction valve through the intermediate-store inlet flows essentially adjacent to the shut-off ball located on the closable opening and / or laterally onto the shut-off ball located on the closable opening.
- This further development form is particularly preferred in order to prevent the direct impact of the incoming medium on the shut-off ball.
- a device can be mounted, which deflects the flow direction of the medium from a direction pointing vertically downwards and in this way makes the medium next to or laterally hit the shut-off ball.
- the desired effect can also be achieved in that the intermediate memory input and the closable opening are not arranged in a line, so that the shut-off ball coming to rest on the opening is also arranged laterally offset from the intermediate memory input.
- a valve arrangement as described above may be used to control the discharge of a liquid medium from a space pressure-damped into the environment.
- a valve arrangement as described above for controlling the removal of a liquid medium, in particular gray water, from a relative to an environment pressure-damped train wagon, in particular a high-speed train wagon, are used in the environment.
- FIG. 1 shows a longitudinal section through a first embodiment of a valve arrangement according to the invention with a balanced pressure ratio without medium flow
- FIG. 2 shows a longitudinal section through the valve assembly of Fig. 1 in an enlarged view
- FIG. 3 shows a longitudinal section through the valve arrangement of Fig. 1 with medium flow
- FIG. 4 shows a longitudinal section through the valve arrangement of FIG. 1 with gas overpressure in the environment
- FIG. 5 shows a longitudinal section of the valve arrangement of FIG. 1 at gas overpressure in the pressure-damped space
- FIG. 6 shows a longitudinal section through an installation variant of the valve arrangement according to FIG. 1 in a train wagon
- FIG. 7 shows a longitudinal section through a second installation variant of the valve arrangement according to FIG. 1 in a train wagon
- FIG. 8 shows a longitudinal section through a second embodiment of a valve arrangement according to the invention with balanced pressure ratio without medium flow
- FIG. 9 shows a longitudinal section through the valve arrangement according to FIG. 8 with medium flow
- FIG. 10 shows a longitudinal section through the valve arrangement according to FIG. 8 with gas overpressure in the environment
- FIG. 11 shows a longitudinal section through the valve arrangement according to FIG. 8 at gas overpressure in the pressure-damped space
- FIG. 12 a longitudinal section through a first installation variant of the valve arrangement according to FIG. 8 in a train wagon;
- FIG. 13 shows a longitudinal section through a second installation variant of the valve arrangement according to FIG. 8 in a train wagon
- FIG. 15 is a side view of the backflow prevention valve of FIG. 14; FIG.
- FIG. 16 is a cross-sectional view of the backflow prevention valve of FIG. 14; FIG.
- FIG. 18 a longitudinal section through the backflow prevention valve of FIG. 14, FIG.
- Fig. 19 a cross section of a flow prevention valve according to the invention.
- FIG. 1 shows a first embodiment of a valve arrangement 100 according to the invention for the removal of a liquid medium from a space 102 which is pressure-damped relative to an environment 102 into the environment 102 in longitudinal section.
- the valve arrangement 100 has an inlet opening 103 and an outlet opening 104.
- the pressure-damped space 101 is separated from the environment 102 by a partition wall 140, such as the floor of a train car.
- the gas pressure prevailing in the pressure-dampened space 101 corresponds to the gas pressure prevailing in the environment 102.
- the inlet opening 103 is connected to the outlet opening 104 via a connecting channel 110.
- the same gas pressure prevails at the inlet opening 103 as in the pressure-dampened room 101.
- the outlet gas has the same gas pressure as the environment 102.
- the valve arrangement 100 is installed such that a liquid medium flows in the direction of gravity from the inlet opening 103 to the outlet opening 104 can.
- the valve assembly 100 includes a backflow prevention valve 120 and a flow preventive valve 130.
- the flow prevention valve 130 is disposed below the backflow prevention valve 120.
- Fig. 2 shows the valve assembly of FIG. 1 in an enlarged view.
- the non-return valve 120 is formed as Duckbillventil, and has an input 121, an output 123 and an input-output formed between the media-conducting channel 124 of elastic material.
- the media-conducting channel 124 is bounded by two side walls 122a, b of elastic material, which have the shape of a flat nozzle tapering in the direction of the exit.
- the side walls 122a, b of the flat grommet are biased in a portion 125 and pressed against each other, so that the Duckbillventil is closed in the state shown in FIGS. 1 and 2 of a balanced pressure ratio between the pressure-damped space 101 and the environment 102.
- the upper end of the duckbill valve has a collar-shaped connection element 129, which is fastened to a flange 111 of the connection channel 110.
- the valve arrangement 100 has a flow prevention valve 130 designed as a double pressure relief valve.
- the Doppelduckbillventil 130 has an aligned in the direction of the duckbill valve designed Duckbillventils 120 input and a downwardly facing output 132.
- a second media-conducting channel 134 is formed of an elastic material.
- the Doppelduckbillventil is formed from two flat spouts each having two side walls 136a, b, 137a, b of elastic material, which are connected at their ends in the region 135.
- the side walls 136 a, b, 137 a, b are biased such that they are pressed against each other in the region 135 and close the connecting channel 110.
- a gas-filled gap 133 is formed between the second media channel 134 forming side walls 136a, b, 137a, b and the connecting channel 110.
- a gas-filled gap 133 is connected via a bypass pressure line 138 with the pressure-damped space 101, so that in the gas-filled gap 133, the same gas pressure prevails as in the pressure-damped space 101st
- FIG. 3 also shows the valve arrangement of FIGS. 1 and 2 in the condition that the gas pressure in the pressure-damped space 101 corresponds to the gas pressure in the environment 102.
- the valve arrangement 100 in FIG. 3 flows through a liquid medium, in the example illustrated here, water, in particular gray water, in the direction of the arrows A.
- the elastic side walls 136a, b, 137a, b and their bias are dimensioned so that the water flowing in the direction of gravity can overcome the biasing force.
- the prestressed regions 125 and 135 of both the duckbill valve 120 and the double duckbill valve 130 are open and the medium can flow through the valve arrangement 100 from the inlet opening 103 to the outlet opening 104.
- Fig. 4 shows the valve arrangement of Fig. 1 in the situation in which the gas pressure in the environment 102 is greater than the gas pressure in the pressure-dampened space 101. By this pressure difference can water against the direction of gravity from the outlet opening 104 in the direction of arrows B in enter the valve assembly.
- water flowing in from the exit into the media conducting channel 134 can overcome the biasing force of the sidewalls 136a, b, 137a, b and pass the double duckbill valve 130 from its exit 132 through the second media conducting passage 134 to the lower end 123 of the duckbill valve 120.
- FIG. 5 shows the valve arrangement according to FIG. 1 in the situation in which the gas pressure in the pressure-damped space 101 is greater than the gas pressure in the environment 102.
- the water flowing in the direction of gravity can pass through the duckbill valve 120, as already explained for FIG. 3 , and encounters the double duckbill valve 130.
- the increased gas pressure in the pressure-damped space 101 is also transmitted via the bypass line 138 to the gas-filled intermediate space 133. Due to this higher gas pressure in the gas-filled gap 133, the closing force of the biased side walls 136 a, b, 137 a, b of Doppelduckbillventils 130 in the region 135 in the direction of arrows C is amplified.
- the double duckbill valve 130 is dimensioned so that the closing force increased by the increased gas pressure in the gas-filled space 133 can not be overcome by the water entering the direction of the arrows C in the direction of gravity through the inlet opening 103.
- the Doppelduckbillventil 130 is therefore closed and prevents the flow of water from the inlet opening 103 to the outlet opening 104 of the valve assembly 100th
- valve assembly 100 assumes a position according to FIG. 1 or 3, depending on whether medium flows or not.
- FIG. 6 shows the valve arrangement 100 in a mounting situation in a train carriage 150.
- the pressure-dampened space 101 is formed inside the train carriage 150, for example as a washroom.
- the connecting channel 110 connects the inlet opening 103, which opens into a hand basin 160, to the outlet opening 104, which is gas-pressure-connected to the surroundings 102.
- the connecting channel 110 has, in the installation variant shown in FIG. 6, a section 110a which is longer than the distance between hand-wash basin 160 and lower end of the train carriage 150 so that the duckbill and double duckbill valves are located below the train carriage.
- Fig. 7 shows a similar installation situation as in Fig. 6, with the difference that the Duckbillventil 120 and the Doppelduckbillventil 130 are disposed within the train carriage 150.
- FIGS. 8 to 11 show a second embodiment of the valve arrangement according to the invention with an inlet opening 203, which with a pressure-damped space 201 in Gas pressure communication is a connection channel 210 which connects the inlet opening 203 with an outlet opening 204 which is in gas pressure communication with an environment 202.
- a duckbill valve 220 which corresponds to the duckbill valve 120 shown in FIGS. 1 to 7, is arranged in the connection channel 210 as a backflow prevention valve.
- the embodiment shown in FIGS. 8 to 11 differs from the first embodiment shown in FIGS. 1 to 7 by the formation of the flow prevention valve.
- the embodiment shown in FIGS. 8 to 11 shows a buffer 231, which is formed as a cross-sectional widening of the connecting channel 210.
- the latch 231 has a latch input in which the duckbill valve 220 is disposed.
- the buffer 231 has a closable opening 233.
- the buffer 231 In the lower region 231a, the buffer 231 is funnel-shaped, so that the buffer in the region 231a tapers towards the closable opening 233.
- a shut-off ball 232 is arranged in the buffer.
- the diameter of the shut-off ball 232 is greater than the diameter of the closable opening 233.
- FIG. 8 shows the valve arrangement according to the invention in a situation in which the gas pressure prevailing in the pressure-dampened space 201 corresponds to the gas pressure in the environment 202. Furthermore, in the situation shown in Fig. 8, no medium flows through the valve assembly. In this situation, the check ball 232 comes to rest at the lower end of the buffer 231 on the closable opening 233 by gravity and closes the opening 233.
- FIG. 9 also shows the valve arrangement in a situation with balanced pressure conditions in the pressure-damped space 201 and in the environment 202, however, in FIG. 9, water flows in the direction of the arrows D through the valve arrangement 200.
- the backflow prevention valve designed as duckbill valve 220 opens below the valve arrangement 200 inflowing water as described with reference to Figs. 1-7. As a result, the water passes into the buffer 231. Since the closable opening 233 is initially closed by the shut-off ball 232 (as shown in FIG. 8), water accumulates in the lower region of the buffer 231.
- the density of the shut-off ball 232 is less than the density of the medium, in the example of the water described here.
- valve assembly 200 As shown in FIG. 10, when the gas pressure in the environment 202 exceeds the gas pressure in the pressure-damped space 201, water may rise into the valve assembly 200 through the discharge port 204 in the direction of the arrows E. In this situation, the check ball 232 is released from its position at the lower end of the buffer 231 by the water flowing through the opening 232, so that the water can enter the buffer 231 against the action of gravity. In this direction, however, the water can not pass the duckbill valve 220, as described above with reference to FIGS. 1-7.
- the valve arrangement 200 according to the invention thus prevents the flow of water counter to the direction of gravity at a gas pressure in the environment 202 which exceeds the gas pressure in the pressure-damped space 201.
- FIG. 11 shows the situation that the gas pressure in the pressure-damped space 201 exceeds the gas pressure in the environment 202.
- the gas overpressure prevailing in the pressure-dampened space 201 acts in the direction of gravity on the shut-off ball 131 and amplifies it.
- the water may pass the duckbill valve 220 in the direction of gravity, as shown above. Even in the situation shown in Fig. 11, the water accumulates in the first buffer 231, since the shut-off ball 232, the opening 233 closes. When the water has risen to a level at which the buoyant force of the check ball 232 is sufficient to release it from the opening 233, the water can flow out of the buffer through the opening 233 in the direction of the outlet opening 204.
- FIGS. 12 and 13 show arrangements of a valve arrangement of the second embodiment analogous to the arrangements of a valve arrangement of the first embodiment shown in FIGS. 6 and 7.
- the valve arrangement 200 shown in FIGS. 12 and 13 serves to discharge water from a hand wash basin 260 arranged within a train carriage 250 into an environment 202.
- the interior of the train wagon or z. B. a washroom is a pressure-damped space 201.
- the valve arrangement of the second embodiment of the invention can be arranged below the train wagon, as shown in Fig. 12, or within the train wagon, as shown in Fig. 13.
- the functional valve arrangement according to the second embodiment is identical in both installation variants.
- the duckbill valve 320 has an input 321 and an output 323. In between, a media-conducting channel 324 is formed. At the input 321, an annular flange 329 is formed, which can serve for fastening the Duckbillventils 320 in a connecting channel (not shown).
- the annular flange 329 has an outer radius 329a and an inner radius 329b, as can be seen in FIG.
- FIG. 16 illustrates the formation of the narrow gap between the side walls 322a, b, which form the media-conducting channel 324 between them in the open state when the water flows through.
- FIG. 18 shows the duckbill valve 320 in longitudinal section.
- a lower portion 325a of the flattened region 325 of the duckbill valve 320 can be seen, in which the side walls 322a, b are close together, so that the inflow of medium through the outlet 323 in the direction of the input 321 is prevented.
- 19 shows a double pressure relief valve which, for example in the embodiments of the valve arrangement according to the invention shown in FIGS. 1 to 13, can be used as a flow prevention valve.
- the double duckbill valve 430 may be composed of two duckbill valves as shown in FIGS. 14 to 18, which are connected at their two flattened ends so that the two outlets 323 are fluid-tightly interconnected.
- the double duckbill valve has an inlet 431 and an outlet 432 which are connected by a media-conducting channel 434.
- the respectively opposite side walls 436a, b, 437a, b of the two flat grommets are preferably made of elastic material and are biased so that they abut each other in a section 435 and close the Doppelduckbillventil 430.
- annular flange 439, 439a for fastening the double duckbill valve, for example in a connecting channel, is formed in each case.
- the bias of the sidewalls 436a, b, 437a, b is preferably dimensioned such that medium flowing in through the inlet 431 or outlet 432 into the media-conducting channel 434 can overcome the bias and at least partially open and pass the region 435.
- the double duckbill valve 430 can prevent the flow of a medium through the medi- um conducting passage 434 when a gas-filled space 433 is formed outside the media-conducting passage, and the gas pressure in this gas-filled space increases the closing force of the sidewalls 436a, b, 437a, b, a medium entering through the inlet 431 or the outlet 432 into the connecting channel 434 can not open the region 435 against the prestressing force and the additionally acting pressure force of the gas-filled space 433 and so that the double pressure relief valve can not pass.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Check Valves (AREA)
- Float Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810007748 DE102008007748A1 (de) | 2008-02-05 | 2008-02-05 | Ventilanordnung für gravitätische Flüssigkeitsabfuhr mit der Über- und Unterdruckphase |
PCT/EP2009/000764 WO2009098049A1 (de) | 2008-02-05 | 2009-02-05 | Ventilatoranordnung für gravitätische flüssigkeitsabfuhr mit der über- und unterdruckphase |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2250063A1 true EP2250063A1 (de) | 2010-11-17 |
Family
ID=40602132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09708044A Withdrawn EP2250063A1 (de) | 2008-02-05 | 2009-02-05 | Ventilatoranordnung für gravitätische flüssigkeitsabfuhr mit der über- und unterdruckphase |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2250063A1 (de) |
JP (1) | JP2011511232A (de) |
CN (1) | CN101980910A (de) |
DE (1) | DE102008007748A1 (de) |
RU (1) | RU2010136985A (de) |
WO (1) | WO2009098049A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115415163A (zh) * | 2022-10-09 | 2022-12-02 | 江西省天竹生态农业有限公司 | 一种大米加工用米象去除机 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010014643U1 (de) * | 2010-10-26 | 2012-01-26 | Evac Gmbh | Ventilanordnung für die Abfuhr eines flüssigen Mediums |
CN102359649B (zh) * | 2011-11-02 | 2013-04-03 | 山东华腾环保科技有限公司 | 真空控制阀 |
DE202012000838U1 (de) | 2012-01-30 | 2013-05-02 | Evac Gmbh | Ventil für die Abfuhr eines flüssigen Mediums aus einem gegenüber einer Umgebung druckgedämpften Raum |
DE102012223242A1 (de) | 2012-12-14 | 2014-06-18 | Siemens Aktiengesellschaft | Schienenfahrzeug mit druckstoßgesicherter Grauwasserleitung |
DE202013008298U1 (de) * | 2013-09-20 | 2014-12-22 | Evac Gmbh | Vakuumtoilette mit wechselseitiger Quetschventilschließung |
DE102014207654A1 (de) | 2014-04-23 | 2015-10-29 | Siemens Aktiengesellschaft | Schnabelventil für ein Hochgeschwindigkeits-Schienenfahrzeug |
DE102014217733A1 (de) * | 2014-09-04 | 2016-03-10 | Siemens Aktiengesellschaft | Schienenfahrzeug mit einer Entwässerungsvorrichtung aufweisenden Unterbodenplatte |
DE102015200937A1 (de) * | 2015-01-21 | 2016-07-21 | Siemens Aktiengesellschaft | Fluidventil, insbesondere für Fahrzeuge |
EP3492332A4 (de) * | 2016-07-27 | 2020-03-18 | Japan Transport Engineering Company | Wasserablaufstruktur für schienenfahrzeuge |
CN108266553A (zh) * | 2016-12-30 | 2018-07-10 | 福州品行科技发展有限公司 | 一种带电解装置的稳压阀 |
CN107575601B (zh) * | 2017-08-23 | 2024-03-19 | 上海泽宁环保科技有限公司 | 一种负压源动力真空阀芯、密封装置及界面阀 |
CN111520511A (zh) * | 2020-04-22 | 2020-08-11 | 青岛格物正坊机电科技有限公司 | 多用途阀及其阀片与应用 |
DE102020118436A1 (de) * | 2020-07-13 | 2022-01-13 | Volkswagen Aktiengesellschaft | Verfahren und Vorrichtung zur Bestimmung der Menge eines in einer Batteriezelle befindlichen Gases |
CN113154094B (zh) * | 2021-04-02 | 2023-11-14 | 浙江机电职业技术学院 | 管道型膜式止回阀 |
AT18148U1 (de) * | 2023-02-13 | 2024-03-15 | Eh Holding Gmbh | Drainagesystem mit Abdichtbürste |
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GB2327484B (en) * | 1997-07-22 | 2001-05-02 | T & N Technology Ltd | Gasket |
DE19806973A1 (de) * | 1998-02-19 | 1999-08-26 | Roediger Anlagenbau | Unterdruckventil |
US6367505B1 (en) * | 2000-03-22 | 2002-04-09 | Red Valve Co., Inc. | Check valve with oversized bill |
FI20011506A (fi) * | 2001-07-10 | 2003-01-11 | Evac Int Oy | Tyhjiökeräysjärjestelmä |
DE102004042147A1 (de) * | 2004-08-31 | 2006-03-02 | AOA Luftfahrtgeräte Gauting GmbH | Kompaktvakuum-Toilettenanordnung und deren Verwendung |
US8011033B2 (en) * | 2005-04-08 | 2011-09-06 | The Boeing Company | Aircraft sink with integrated waste disposal function |
RU2395743C2 (ru) * | 2005-04-12 | 2010-07-27 | Ян Дракуп ДОИГ | Клапан и система для удаления текучей среды из отстойника канализационного коллектора, содержащая такой клапан |
DE102005018449A1 (de) * | 2005-04-20 | 2006-10-26 | Roediger Vakuum- Und Haustechnik Gmbh | Unterdruckventil |
-
2008
- 2008-02-05 DE DE200810007748 patent/DE102008007748A1/de not_active Withdrawn
-
2009
- 2009-02-05 WO PCT/EP2009/000764 patent/WO2009098049A1/de active Application Filing
- 2009-02-05 CN CN2009801112213A patent/CN101980910A/zh active Pending
- 2009-02-05 JP JP2010545399A patent/JP2011511232A/ja active Pending
- 2009-02-05 EP EP09708044A patent/EP2250063A1/de not_active Withdrawn
- 2009-02-05 RU RU2010136985/11A patent/RU2010136985A/ru unknown
Non-Patent Citations (1)
Title |
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See references of WO2009098049A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115415163A (zh) * | 2022-10-09 | 2022-12-02 | 江西省天竹生态农业有限公司 | 一种大米加工用米象去除机 |
CN115415163B (zh) * | 2022-10-09 | 2024-03-22 | 永州庆源农副产品加工有限公司 | 一种大米加工用米象去除机 |
Also Published As
Publication number | Publication date |
---|---|
CN101980910A (zh) | 2011-02-23 |
RU2010136985A (ru) | 2012-03-20 |
JP2011511232A (ja) | 2011-04-07 |
DE102008007748A1 (de) | 2009-08-06 |
WO2009098049A1 (de) | 2009-08-13 |
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