CN101980910A - Ventilator arrangement for gravitational fluid discharge via high and low pressure phase - Google Patents
Ventilator arrangement for gravitational fluid discharge via high and low pressure phase Download PDFInfo
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- CN101980910A CN101980910A CN2009801112213A CN200980111221A CN101980910A CN 101980910 A CN101980910 A CN 101980910A CN 2009801112213 A CN2009801112213 A CN 2009801112213A CN 200980111221 A CN200980111221 A CN 200980111221A CN 101980910 A CN101980910 A CN 101980910A
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- 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
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- 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
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- 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
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- General Health & Medical Sciences (AREA)
- Check Valves (AREA)
- Float Valves (AREA)
Abstract
The invention relates to a device for discharging a fluid medium from a space (101), which is pressure-damped as opposed to an environment, into the environment (102). The invention further relates to a valve arrangement for discharging a fluid medium from a space, which is pressure-damped as opposed to an environment, into the environment, comprising an inlet opening (103), which is in gas pressure contact with the pressure-damped space in the installed position, an outlet opening (104) positioned below the inlet opening in the installed position in the direction of gravity, said outlet opening being in gas pressure contact with the environment in the installed position, a connecting channel (110) connecting the inlet opening to the outlet opening, a return flow stop valve (120), which is configured in order to allow the fluid medium to pass from the inlet opening to the outlet opening under the influence of gravity, and in order to close it off if a predetermined gas overpressure present in the environment as opposed to the pressure-damped space is exceeded, a through-flow stop valve (130), which is configured to allow the fluid medium to pass from the inlet opening to the outlet opening under the influence of gravity, and to close it off if a predetermined gas overpressure present in the pressure-damped space as opposed to the environment is exceeded.
Description
Technical field
The present invention relates to a kind of device that is used for liquid dielectric is discharged to from the space with respect to the ambient pressure environment decay external environment.
At this, however the space of pressure attenuation be interpreted as fully at least basically with respect to external environment osed top space, yet described space can also have closeable opening, door and the window in railway carriage for example.In this application, pressure attenuation is interpreted as, can difference of pressure occur between the space of pressure attenuation and external environment at least at short notice.
Background technology
In the device of aforesaid kind, between the space of pressure attenuation and external environment, exist under the situation of difference of pressure, in the zone in the liquid discharge tube road of being everlasting, go wrong.If the space of pressure attenuation for example is the high-speed train compartment, the difference of pressure of short time typically appears when sailing the tunnel into or when train meets.Thus, for example when the gas in overpressure that in external environment, exists with respect to the space of pressure attenuation, the liquid dielectric that can cause discharging is back in the space of pressure attenuation, perhaps when the gas in overpressure that exists in the space at pressure attenuation with respect to external environment, causes the sucking-off effect.
Be known that for fear of the problems referred to above, use the siphon of height with the difference of pressure that is equivalent to corresponding water column.Sail in the example that tunnel and train meet above-mentioned, described difference of pressure for example can be until reaching pact ± 9kPa, and this is equivalent to the water column of 900mm.Yet, often do not have enough structure spaces to be used to have the siphon of corresponding size of the setting height(from bottom) of 900mm.When especially being applied in the railway carriage, be difficult to realize such installation dimension.
Another problem is that the place can gather impurity at siphonal low spot, and can cause blocking.For example when removing swill, especially there is this danger by device.
Another problem is that such system can not be cleared.When temporarily stop using in the compartment, for example must empty the water in the plumbing system that is in train.
Summary of the invention
Therefore, the objective of the invention is to avoid or overcome one or more above-mentioned shortcoming.
According to the present invention, described purpose was achieved liquid dielectric by a kind of being used for from the valve constitution that the space with respect to the ambient pressure environment decay is discharged to external environment, it comprises: inlet, and described inlet is in air pressure with the space of pressure attenuation and is connected in the installation site; Outlet, described outlet are positioned at inlet along gravity direction in the installation site below, and in the installation site, are in air pressure and are connected with external environment; Interface channel, described interface channel will enter the mouth and be connected with outlet; Boiler check valve, described boiler check valve constitutes, and is used to allow the liquid dielectric by gravity to flow to outlet from inlet, and when above be present in the external environment with respect to the predetermined gas in overpressure in the space of pressure attenuation the time close; Shutoff valve, described shutoff valve constitutes, and is used to allow the liquid dielectric by gravity to flow to outlet from inlet, and when above in the space that is present in pressure attenuation with respect to the predetermined gas in overpressure of external environment the time close.
In addition, be,, on both direction, make liquid dielectric flow through interface channel or stop liquid dielectric to flow through interface channel according to the pressure dependence in the space of pressure attenuation and in external environment according to the characteristics of valve constitution of the present invention.
External environment represents to be positioned at the zone in addition, space of pressure attenuation.At this also is the space that separates in described external environment, for example wastewater collection container.
Liquid dielectric is discharged by valve constitution by gravity, that is to say, in the installation site of valve constitution, liquid dielectric to be discharged flows into the external environment downwards through the space of valve constitution from the pressure attenuation of top.Therefore, the ensuing narration of the position of the element of relevant valve constitution relates to the installation site according to valve constitution of the present invention, under gravity direction points in described valve constitution.
In described installation site, valve constitution according to the present invention has interface channel, and described interface channel is connected the inlet of top with the outlet of bottom.At this, inlet feeds the space of pressure attenuation, and in the outlet feeding external environment, perhaps feeds in the wastewater collection container that for example is arranged in the external environment.Interface channel can be the common pipeline of being made up of the different materials with for example circular cross-sectional plane.
Inlet for example can be the discharge port of hand washer or service sink, should be able to remove the sewage of accumulation from described discharge port.Connecting tube preferably basically verticallydownwardly begin from described pond to extend.Yet interface channel can also extend obliquely, as long as can be with the mode discharged liquid medium of action of gravity.
Be higher than air pressure in the space of pressure attenuation if be present in air pressure in the external environment, this can cause so, and medium is in reverse to gravity direction and enters in the valve constitution.Valve constitution according to the present invention has boiler check valve, can avoid under these circumstances medium to be in reverse to gravity direction by means of described boiler check valve and be back to inlet from outlet.
If the air pressure in the external environment is equal to or less than the air pressure in the space of pressure attenuation, the liquid dielectric by gravity passes through boiler check valve from top to bottom so.
Boiler check valve can constitute bypass disc common in fluid technique, and described bypass disc stops medium to flow to inlet from outlet automatically on flow direction.Such valve also is called check valve.
In addition, valve constitution according to the present invention has boiler check valve, and described boiler check valve can stop medium to flow to outlet from inlet on flow direction.
If the air pressure in the space of pressure attenuation is identical with air pressure in being present in external environment, liquid dielectric is not only along the direction that exports from entering the mouth to so, but also oppositely flows through interface channel.Yet, if the air pressure in the space of pressure attenuation greater than the air pressure in external environment, boiler check valve can be blocked interface channel at least at short notice, so that liquid dielectric is without interface channel.
Therefore, when the air pressure when the air pressure in the external environment is higher than air pressure in the space of pressure attenuation and in external environment is lower than air pressure in the space of pressure attenuation, can stop liquid dielectric to flow through valve constitution according to valve constitution of the present invention so.Be easy to act as most air pressure in the external environment when higher with respect to the space of pressure attenuation, closure of check ring and when the air pressure in the space of pressure attenuation is higher with respect to external environment shutoff valve close.When guaranteeing circulation in the space at pressure attenuation when pressure dependence is substantially the same in external environment.
Therefore, valve constitution according to the present invention by overvoltage by or negative pressure by having avoided the problem that under the situation of difference of pressure, occurs.In case the difference of pressure balance allows liquid dielectric to flow to outlet by interface channel from inlet according to valve constitution of the present invention once more.Therefore also guaranteed, when the pressure dependence balance of the space of pressure attenuation and external environment, emptied structure automatically.
In addition, valve constitution according to the present invention has the following advantages, and promptly this structure only has low system height and has little structure space demand, because the water column of the difference of pressure that is equivalent to occur for example needn't be provided.
Because the passage of the boot media of boiler check valve shutoff valve is preferably made by elastomeric material, also especially can improve the characteristic that dirt is discharged and foreign matter is discharged according to valve constitution of the present invention.
In addition, valve constitution according to the present invention has the following advantages, and promptly described valve constitution can be made and assembling in the cost lowland.And being used for of existing is discharged to liquid dielectric external environment from the space with respect to the ambient pressure environment decay device can come simply and the repacking of cost lowland by valve constitution according to the present invention.
The present invention is preferably as follows improvement, promptly shutoff valve in the installation site along gravity direction be arranged on boiler check valve below.
The advantage that described improved form has is that boiler check valve can be set near inlet, so that can also stop the backflow that is present in the medium in the interface channel basically.When valve constitution for example is used for sewage when discharge in hand washer or cleaning pond, this is especially favourable.If boiler check valve is arranged on the top of shutoff valve, then stoped the sewage that is present in the valve constitution upwards to be back in the pond, described backflow can cause polluting the zone in this pond.
The present invention can also followingly improve, and promptly boiler check valve constitutes duckbill valve, and described duckbill valve has: input end; Twitch one's mouth, described twitch one's mouth in the installation site point to along gravity direction from input end under and be tapered in the direction, and have two sidewalls of forming by elastomeric material; Under mouth, described mouth point to along gravity direction from input end in the installation site.The first passage of the boot media of portion's formation within it between input end and mouth of twitching one's mouth, and sidewall preload make that in primary importance sidewall is extruding each other at least partly.Therefore, when do not have medium to flow into through input end in the duckbill valve or when medium when mouth bumps against on the duckbill valve, the first passage of boot media seals in this primary importance at least partly.In the second place, sidewall is separated from each other at least partly.Therefore, when medium flowed in the duckbill valve through input end, the first passage of boot media was opened in the described second place at least in part.
Duckbill valve is a kind of valve, and the element of the boot media of described valve is made by elastomeric material basically, is preferably made by elastomeric plastic material.The elastomeric material of duckbill valve forms the wall of passage, and medium must flow to mouth from input end through described passage.The passage of described boot media is arranged in the interface channel, and typically has the cross-sectional plane littler than interface channel.
The input end of valve can be consistent with the shape of interface channel, and described interface channel can be for having the pipeline of circular cross section.Constitute the end of twitching one's mouth and preferably have the shape of flattening.At this, two sidewalls preferably basically toward each other.Preferably cause the preload of elastomeric material, so that sidewall abuts one another with the form of flattening.
Medium can flow into along gravity direction from input end along the passage of the tapered boot media of mouth direction, arrive between the sidewall of preload and overcome preload, so that the part of flattening can open at least in part and medium can flow through duckbill valve.
The passage of boot media is preferably on the mouth preload each other, so that medium can not arrive the passage of boot media from mouth.The described overvoltage that abuts one another by outlet side strengthens.Therefore stop medium because the backflow of the direction that the overvoltage with respect to input end on mouth causes from mouth along input end.
Because valve constitution according to the present invention preferably is set to, make medium flow along gravity direction, so surpass air pressure in the space be present in pressure attenuation when being present in air pressure in the external environment, and therefore medium be in reverse to gravity direction from mouth to returning when the direction of input end is extruded, especially the blocking effect of boiler check valve works.Except preload, bump against from output end on the lower end of duckbill valve, and therefore bump against the closing force that medium on the outside of sidewall of passage of boot media can strengthen duckbill valve, so that when medium is in reverse to gravity direction and bumps against on the duckbill valve from below, the valve reliably closing.
In addition, the advantage that duckbill valve has is do not have easily to accumulate the dead band of deposition of dirt basically, and dirt in medium and impurity can pass through duckbill valve well.Therefore can avoid or reduce accretion and obturator.
Preferred improvement project of the present invention is characterised in that, shutoff valve constitutes the flexible pipe valve, described flexible pipe valve has input end and be arranged on mouth below the input end along gravity direction in the installation site, and the second channel of the boot media of forming by elastomeric material of in interface channel, between input end and mouth, extending, wherein gas filed gap be formed in shutoff valve in the second channel and the zone between the interface channel of boot media, so that the air pressure in being formed in gas filed gap is when surpassing air pressure in the second channel be present in boot media, the second channel of boot media compresses at least partly, and therefore shutoff valve is closed.
The shutoff valve that constitutes the flexible pipe valve has the second channel of boot media, and described passage preferably has the cross-sectional plane less than interface channel, and described passage is concentric with described interface channel basically, and extends in described interface channel.The passage of the boot media of shutoff valve is preferably between the input end of shutoff valve and the mouth and extends.The input end of shutoff valve preferably is connected with interface channel respectively in a fluid tight manner with mouth.Therefore between the passage of the boot media of interface channel and shutoff valve, probably the length from the input end of shutoff valve to mouth at interface channel produces microscler, annular slightly gap.Described gap is preferably gas filed, and can compress the resilient channels of boot media, so that when the air pressure in the gap surpasses air pressure in the second channel be present in boot media, stop MEDIA FLOW to cross shutoff valve.The passage of boot media can have arbitrarily, cross-sectional plane circular or that flatten for example, and described cross-sectional plane can be according to the flow and the position of valve, especially according in the passage of boot media and the pressure variation that constitutes in the gap.
The opening and closing of shutoff valve are best according to the space of pressure attenuation and the pressure ratio of external environment, and preferably design according to the difference of pressure that occurs usually between the space of pressure attenuation and external environment.Especially preferredly be, to close shutoff valve when in gas filed gap and the air pressure in the space at pressure attenuation when being higher than air pressure in external environment.
At this advantageously, gas filed gap is connected with another space or device, so that can change the air pressure in gas filed gap.When the gap was connected with another space, the air pressure in gas filed gap depended on the air pressure that constitutes in described another space.When gas filed gap is connected with the device that is used for adjustment pressure, can be controlled at the air pressure that constitutes in the gas filed gap.Advantageously, the control of the air pressure in gas filed gap is relevant with the current pressure dependence in the space of pressure attenuation and in external environment in such structure.
The advantage that described improvement project according to the present invention has is, when the air pressure in the space at pressure attenuation is higher than air pressure in external environment, can block shutoff valve.By according to the blocking effect that activates gas filed gap at the space of pressure attenuation and the pressure dependence in external environment, can realize simple and extremely actv. valve control.
In addition, the advantage that above-mentioned improvement project according to the present invention has is that the dirt of medium and foreign matter can easily be discharged downwards through the flexible pipe valve along gravity direction, can not gather sedimentary dead band because the flexible pipe valve does not have in the passage of boot media.Therefore can avoid or reduce the deposition of dirt thing and the obturator of valve.
The best following improvement of the present invention, promptly gas filed gap is in air pressure by the bypass pressure pipeline with the space of pressure attenuation and is connected.
Gas filed gap preferably is connected with the space that pressure reduces in the mode of guide pressure, so that the air pressure in gas filed gap is equivalent to the air pressure in the space of pressure attenuation.This preferably realizes by the bypass pressure pipeline that extends outside interface channel.The size of the resilient channels of gas filed gap and boot media preferably is defined as, make when the air pressure in the space of pressure attenuation---and therefore also have in gas filed gap air pressure---during above the air pressure in external environment, compress the passage of boot media, and therefore close shutoff valve.The air pressure that passes through the bypass pressure pipeline like this connects has realized that in simple mode the close mechanism of shutoff valve is relevant with the pressure dependence in the external environment with the space at pressure attenuation.
Preferred improved form proposes, and shutoff valve constitutes twin duckbill valve.In this case, the second channel of boot media constitutes: twitch one's mouth under in the installation site, pointing to and along described direction tapered first along gravity direction from input end, described first twitches one's mouth have two the first side walls forming by elastomeric material and in the installation site along gravity direction from input end the end under the sensing; In the installation site, twitch one's mouth in the sensing and along described direction tapered second along gravity direction from mouth, described second twitches one's mouth has two second sidewalls being made up of elastomeric material and the end of pointing to along gravity direction from mouth in the installation site, described first twitches one's mouth and second end of twitching one's mouth is connected to each other in a fluid tight manner.
In addition preferably, first and/or the second sidewall preload of twitching one's mouth, so that when not having MEDIA FLOW to cross twin duckbill valve, described sidewall is extruding each other at least partly in primary importance, and therefore the second channel of boot media is closed at least partly, and when MEDIA FLOW was crossed twin duckbill valve, described sidewall was separated from each other in the second place at least partly, and therefore the second channel of boot media is opened at least in part.
The shutoff valve that constitutes twin duckbill valve can be made up of two above-mentioned duckbill valves basically, described duckbill valve is connected to each other on the end of its flattening in a fluid tight manner, perhaps constitute one, so that the passage of boot media is formed in the inside of twin duckbill valve.
At this preferably, the elastomeric material preload of twin duckbill valve is so that in first center position of shutoff valve, when not having MEDIA FLOW to cross interface channel, the passage of boot media is closed at least partly, that is to say at least one, best two sidewalls of twitching one's mouth abut one another.At this, first and/or second two sidewalls of twitching one's mouth respectively preferably basically toward each other.At first overcome preload by the medium that flows through interface channel, and the passage of boot media is in the second place of opening, the passage of boot media is opened at least in part in the described second place, so that medium can pass through shutoff valve.
Alternative preferred refinement proposes, and shutoff valve has: intermediate memory; Be arranged on the ball that ends in the intermediate memory, the described density of ball of ending is less than density of medium; Closed opening, described opening be arranged in intermediate memory in the installation site along on the bottom of gravity direction, and the diameter of described opening is less than ending ball size, wherein by ball, intermediate memory and closed opening are arranged to and they are sized to, make in the make position of shutoff valve, cooperate with opening and seal described opening by the ball by gravity, and in the open position of shutoff valve, the volume of medium can accumulate in the intermediate memory, so that buoyancy makes being in reverse to gravity direction and floating by ball in medium, and make MEDIA FLOW cross opening.
In described improvement flexible program, shutoff valve constitutes, make in the valve position of closure, to be arranged on the opening by ball, and because by the diameter of ball size greater than opening, so with described closure of openings.When not having MEDIA FLOW to cross interface channel, because be positioned on the opening owing to gravity, so valve is in the described state by ball.Consistent by ball size, material and gravity with medium to be discharged.For example can also constitute hollow ball by ball.
When medium flows in the interface channel through inlet and arrives intermediate memory, because opening is by closing by ball sealing, so medium at first accumulates in the intermediate memory.Because the density of ending ball less than density of medium, is ended on the ball described so be in reverse to the buoyancy of action of gravity owing to the medium that gathers, when buoyancy surpassed action of gravity, described buoyancy made by ball and floats.By floating in medium by ball, opening is opened, and therefore allows medium to flow through shutoff valve along gravity direction.
When the air pressure in the space at pressure attenuation during greater than the air pressure in the external environment, described bigger Pneumatic pipe cleaner is crossed interface channel and is also acted on ball, and increases action of gravity, so that can be pressed on the opening and can close shutoff valve by ball.If the medium that gathers is arranged in intermediate memory, if overvoltage occurs with respect to external environment in the space of pressure attenuation, before ball is arranged on the opening, the water in intermediate memory at first can flow out so.If medium flows into the intermediate memory from facing down again, can in the medium that gathers, float once more by ball so.
Alternately, ball can also constitute in the mode of elastically deformable and have variable volume.The buoyancy of this ball can change.When the air pressure in the space at pressure attenuation greater than the air pressure in the environment around and when the medium that gathers is arranged in intermediate memory, can also be pressed on the opening and close shutoff valve by ball so, because if when overvoltage occurring with respect to external environment in the pressure attenuation space, the ball of elastically deformable can also sink in the medium that gathers.
Be in reverse to gas that gravity direction flows or medium from below and can make by ball and opening and separate, and clamp-on in the intermediate memory.Yet, be arranged on the upper end of intermediate memory or the boiler check valve of top stops gas or the medium back flow inlet to valve constitution.
The advantage that described improvement flexible program also provides is that dirt and foreign matter can be carried by opening with medium, so that especially by avoiding the dead band to stop or reducing deposition of dirt thing and tamper.In addition, described improvement flexible program equally only needs little system height, and therefore described structure highly can float in intermediate memory for enough making by ball.In addition, but described ball-valve constitution also the cost lowland make, assembling or repacking.
In preferred improvement project, intermediate memory constitutes the cross-sectional plane extension of interface channel, and in this case, different openings has the cross-sectional plane identical with interface channel.
Alternately or additionally, closed opening has the cross-sectional plane littler than interface channel.In this case, as long as the diameter of described opening greater than the diameter of closed opening, can also have the diameter littler than interface channel by ball.In this case, by enough little can floating by ball, the interface channel part that is positioned at closed opening top enough is used as intermediate memory.
The present invention can followingly improve, and promptly intermediate memory constitutes funnel-form, so that described intermediate memory is tapered along the opening on the bottom of gravity direction in the installation site towards it is set.
The structure that leads to closed opening of intermediate memory can make by gravity end the location of ball on opening and become easier.In addition, can improve by the positional stability of ball on opening by described improved form.
In another improved form, shutoff valve have be arranged on intermediate memory in the installation site along the intermediate memory input end on the upper end of gravity direction, by described intermediate memory input end, liquid dielectric can enter in the intermediate memory, and described shutoff valve is characterised in that, intermediate memory input end and be set to by ball, make the medium that enters shutoff valve through the intermediate memory input end be positioned at flowing through on the closed opening basically, and/or be positioned at flowing through on the closed opening by the ball side by the ball next door.
Described improved form is especially preferred, directly impinges upon on ball so that prevent the medium that enters.Because therefore medium can be guaranteed to float according to function by napiform root ending the ball next door or flowing into intermediate memory on the side of ball.For this reason advantageously, in-line is not set with the intermediate memory input end with by ball.In addition, on the bottom of intermediate memory input end, for example can install as lower device, the deviation in driction of the flow direction that this device makes medium under the vertical sensing, and make medium in this way from the side or the side bump against on ball.In addition, desired effects can also followingly realize that promptly intermediate memory input end and closed opening are not provided with in-line, so that place being set to equally by ball on the opening, is offset with respect to the intermediate memory input end on the side.
According to another aspect of the present invention, valve constitution can be used for the controlling liquid medium as mentioned above and is discharged to external environment from the space with respect to ambient pressure environment decay.
In addition, according to another aspect of the present invention, valve constitution can be used for controlling liquid medium, especially sewage as mentioned above, from railway carriage, especially high-speed train compartment with respect to the ambient pressure environment decay, is discharged in the external environment.
Description of drawings
Next by means of accompanying drawing the preferred embodiment of the present invention is described exemplarily.Accompanying drawing illustrates:
Fig. 1 is illustrated under the situation that does not have the out-of-date pressure dependence in balance of MEDIA FLOW the longitudinal sectional view according to first form of implementation of valve constitution of the present invention;
Fig. 2 illustrates the enlarged view of longitudinal sectional view of the valve constitution of Fig. 1;
Fig. 3 illustrates the longitudinal sectional view of crossing the valve constitution of Fig. 1 when MEDIA FLOW;
The longitudinal sectional view of the valve constitution of Fig. 1 when Fig. 4 is illustrated in gas in overpressure in the external environment;
The longitudinal sectional view of the valve constitution of Fig. 1 when Fig. 5 is illustrated in gas in overpressure in the space of pressure attenuation;
Fig. 6 is illustrated in the railway carriage longitudinal sectional view according to the installation flexible program of the valve constitution of Fig. 1;
Fig. 7 is illustrated in the railway carriage longitudinal sectional view that flexible program is installed according to second of the valve constitution of Fig. 1;
Fig. 8 is illustrated under the situation that does not have the out-of-date pressure dependence in balance of MEDIA FLOW the longitudinal sectional view according to second form of implementation of valve constitution of the present invention;
Fig. 9 illustrates the longitudinal sectional view when the out-of-date valve constitution according to Fig. 8 of MEDIA FLOW;
When Figure 10 is illustrated in gas in overpressure in the external environment according to the longitudinal sectional view of the valve constitution of Fig. 8;
When Figure 11 is illustrated in gas in overpressure in the space of pressure attenuation according to the longitudinal sectional view of the valve constitution of Fig. 8;
Figure 12 is illustrated in the railway carriage longitudinal sectional view that flexible program is installed according to first of the valve constitution of Fig. 8;
Figure 13 is illustrated in the railway carriage longitudinal sectional view that flexible program is installed according to second of the valve constitution of Fig. 8;
Figure 14 illustrates the schematic three dimensional views according to boiler check valve of the present invention;
Figure 15 illustrates the lateral plan of the boiler check valve of Figure 14;
Figure 16 illustrates the cross sectional drawing of the boiler check valve of Figure 14;
Figure 17 illustrates the details A of Figure 16;
Figure 18 illustrates the longitudinal sectional view of the boiler check valve of Figure 14;
Figure 19 illustrates the cross sectional drawing according to shutoff valve of the present invention.
The specific embodiment
Fig. 1 illustrates the longitudinal sectional view according to first form of implementation of valve constitution 100 of the present invention, and described valve constitution 100 is used for liquid dielectric is discharged to external environment 102 from the space 101 with respect to external environment 102 pressure attenuations.Valve constitution 100 has inlet 103 and outlet 104.The dividing plate 140 of the bottom by for example railway carriage separates the space 101 and the external environment 102 of pressure attenuation.Air pressure in the space 101 of pressure attenuation is equivalent to the air pressure in the external environment 102.
Fig. 2 illustrates the enlarged view according to the valve constitution of Fig. 1.Boiler check valve 120 constitutes duckbill valve, and has input end 121, mouth 123 and the passage 124 of the boot media of being made up of elastomeric material that constitutes between input end and mouth.
The passage 124 of boot media is by two sidewall 122a, b gauge, and described sidewall 122a, b are made up of elastomeric material and have along the tapered shape of twitching one's mouth of the direction of mouth.Sidewall 122a, the b that twitches one's mouth be preload and extruding each other in part 125, so that duckbill valve closure under the state at the space 101 of pressure attenuation and the pressure dependence of the balance between the external environment 102 shown in Fig. 1 and 2.
The upper end of duckbill valve has flange shape Connection Element 129, and described Connection Element 129 is fixed on the flange 111 of interface channel 110.
In addition, valve constitution 100 has the shutoff valve 130 that constitutes twin duckbill valve.Twin duckbill valve 130 has at the input end that aligns on the direction of the duckbill valve 120 that constitutes duckbill valve and the mouth 132 under pointing to.Between described input end and mouth 132, the second channel of boot media 134 is made of elastomeric material.Twin duckbill valve is twitched one's mouth by two and is constituted, and twitches one's mouth and has two sidewall 136a, b and 137a, b that are made up of elastomeric material respectively for described two, and the end of described sidewall 136a, b and 137a, b is connected in zone 135.Sidewall 136a, b and 137a, b preload make described sidewall 136a, b and 137a, b push each other in zone 135 and sealing interface channel 110.
Between the sidewall 136a, the b that form second medium channel 134 and 137a, b and interface channel 110, constitute gas filed gap 133.Gas filed gap 133 is connected with the space 101 of pressure attenuation by bypass pressure pipeline 138 so that in gas filed gap 133, exist with space at pressure attenuation in the identical air pressure of air pressure.
Fig. 3 illustrate equally Fig. 1 and 2 in the air pressure in the space 101 of pressure attenuation be equivalent to valve constitution under the state of the air pressure in external environment 102.Be different from Fig. 1 and 2, the valve constitution 100 in Fig. 3 is water, especially sewage by liquid dielectric among the embodiment shown here, flows through in the direction of arrow A.The size of elastomeric sidewall 136a, b and 137a, b and the size of preload thereof are defined as, and make the water that flows along gravity direction can overcome prestress.As can be seen, open in the zone 125 and 135 of the preload of duckbill valve 120 and twin duckbill valve 130 in Fig. 3, and medium can be through valve constitution 100 from 103 flow direction outlets 104 that enter the mouth.
Fig. 4 illustrates the air pressure in external environment 102 among Fig. 1 greater than the valve constitution under the situation of the air pressure in the space 101 of pressure attenuation.By described difference of pressure, water can be in reverse to gravity direction and arrive the valve constitution in the direction of arrow B from exporting 104.
Water from mouth inflow boot media passage 134 also can overcome the prestress of sidewall 136a, b and 137a, b, and through twin duckbill valves 130, the second channel 134 by boot media is up to the bottom 123 of duckbill valve 120 from twin duckbill valve mouth 132.
Then, water bumps against on the outside of sidewall 122a, b of duckbill valve 120, because sidewall 122a, b because their prestress and closure, and not can not overcome the plane of action that prestress is opened duckbill valve 120 for the medium that flows through from the below provides in the zone of part 125.Therefore work as water during can passing through twin duckbill valve 130 under the situation shown in Fig. 4, duckbill valve 120 is closed under the situation shown in Fig. 4, so that anti-sealing is back to the inlet 103 of valve constitution.
Fig. 5 illustrates the valve constitution under the situation that the air pressure in the space 101 of pressure attenuation according to Fig. 1 is higher than the air pressure in the external environment 102.The water that flows along gravity direction can pass through duckbill valve 120,, and hits on twin duckbill valve 130 at as described in Fig. 3 as.
The Pneumatic pipe cleaner that raises in the space 101 of pressure attenuation is crossed bypass duct 138 and also is delivered on the gas filed gap 133.Because the described higher air pressure in gas filed gap 133, sidewall 136a, the b of the preload of twin duckbill valve 130 and the closing force of 137a, b strengthen in zone 135 in the direction of arrow C.Twin duckbill valve 130 is sized to, and makes can not overcome the closing force that strengthens by the air pressure that improves in the direction of arrow C by pass inlet 103 water that enter along gravity direction in gas filed gap 133.
Therefore under the situation shown in Fig. 5, twin duckbill valve 130 closures and prevention water flow to outlet 104 from the inlet 103 of valve constitution 100.
When at the pressure dependence shown in Fig. 4 and Fig. 5 once more during balance, whether valve constitution 100 flows according to medium occupies position according to Fig. 1 or 3.
Fig. 6 is illustrated in the valve constitution that is in installing condition 100 in the railway carriage 150.The space 101 of pressure attenuation is formed in the railway carriage 150, for example constitutes the water closet.Interface channel 110 will lead in the hand washer 160 inlet 103 be in air pressure bonded assembly outlet 104 with external environment 102 and be connected.In installation flexible program shown in Figure 6, interface channel 110 has than the longer part 110a of distance between the lower end of hand washer 160 and railway carriage 150, so that duckbill valve and twin duckbill valve are arranged on the railway carriage below.Yet the gas filed gap 133 of twin duckbill valve 130 is in air pressure by bypass pressure pipeline 138 with the space 101 of pressure attenuation and is connected.
In contrast, Fig. 7 illustrates the similar installing condition with Fig. 6, but difference is that duckbill valve 120 and twin duckbill valve 130 are arranged on railway carriage 150 inside.
Two kinds of structures have the identical principle of work according to valve constitution of the present invention.
Fig. 8 to 11 illustrates second form of implementation according to valve constitution of the present invention, and it has: inlet 203, and described inlet is in air pressure with the space 201 of pressure attenuation and is connected; Interface channel 210, described interface channel will enter the mouth 203 be in air pressure bonded assembly outlet 204 with external environment 202 and be connected.Duckbill valve 220 as boiler check valve is arranged in the interface channel 210, and described duckbill valve 220 is equivalent at the duckbill valve shown in Fig. 1 to 7 120.
At form of implementation shown in Fig. 8 to 11 and the structure that is shutoff valve in the difference of first form of implementation shown in Fig. 1 to 7.In the form of implementation shown in Fig. 8 to 11 intermediate memory 231 is shown, described intermediate memory 231 constitutes the cross-sectional plane extension of interface channel 210.Intermediate memory 231 has intermediate memory input end 231a on the end thereon, and duckbill valve 220 is arranged among the intermediate memory input end 231a.Intermediate memory 231 constitutes funnel-form in lower region thereof 231a, so that intermediate memory is tapered towards closed opening 233 in regional 231a.Be arranged in the intermediate memory by ball 232.End the diameter of the diameter of ball 232 greater than closed opening 233.
Air pressure in the space 201 of pressure attenuation shown in Figure 8 be equivalent under the situation of the air pressure in the external environment 202 according to valve constitution of the present invention.In addition, under situation shown in Figure 8, there is not MEDIA FLOW to cross valve constitution.Under described situation, placing by action of gravity on the closeable opening 233 on the bottom of intermediate memory 231 by ball 232, and sealing opening 233.
Fig. 9 illustrates the valve constitution under the situation of pressure dependence of same balance in the space 201 with pressure attenuation and in external environment 202, but in Fig. 9, water flows through valve constitution 200 in the direction of arrow D.Referring to figs. 1 through 7 described, the duckbill valve 220 that constitutes boiler check valve is opened under the effect of the water that flows into.Therefore water arrives in the intermediate memory 231.Because at first by closed opening 233 being sealed (as shown in Figure 8), so water gathers in the lower area of intermediate memory 231 by ball 232.The density of ending ball 232 is water less than density of medium among the described here embodiment of described medium.Begin to float from the water level of intermediate memory 231, determining by ball 232, as shown in FIG. 9.Therefore closed opening 233 is opened, and water can leave valve constitution by opening 233 and by exporting 204.Flow in the valve constitutions 200 by opening 203 when no longer including water, and water is when middle memory device 231 flows away by opening 233 and outlet 204, places on the opening 233 once more and seal described opening 233 by ball 232 by gravitys, as shown in FIG. 8.
If as shown in Figure 10, the air pressure in external environment 202 surpasses the air pressure in the space 201 of pressure attenuation, and water can rise in the valve constitution 200 in the direction of arrow E by exporting 204 so.Under described situation,, by ball 232 separately,, the water in intermediate memory 231 enters so that can being in reverse to gravity direction from its position on the bottom of intermediate memory 231 owing to pass through the water that opening 232 flows into.But on described direction, water can not pass through duckbill valve 220, as the front referring to figs. 1 through as described in 7.Therefore, when the air pressure in the space 201 of the decay of the air pressure overpressure in external environment 202, valve constitution 200 prevention water according to the present invention are in reverse to gravity direction and flow through.
Situation shown in Figure 11 is that the air pressure in the space 201 of pressure attenuation surpasses the air pressure in external environment 202.In the intermediate memory of sky, be present in gas in overpressure in the space 201 of pressure attenuation along the directive effect of gravity on ball 131, and humidification is in described power on ball 131.
When water flowed into valve constitution 200 by inlet 203 in the direction of arrow F, water can be along gravity direction through duckbill valve 220, as mentioned above.Because with opening 233 sealings, also under the situation shown in Figure 11, water at first accumulates in the intermediate memory 231 by ball 232.Be raised to a certain water level when waterborne, the buoyancy by ball 232 on described water level enough is used for and will separate with opening 233 by ball, and water can export 204 direction by opening 233 edges and flow away from middle memory device.
Second form of implementation of the valve constitution of the present invention shown in Fig. 8 to 11 can be equally be arranged in the railway carriage with different alternative forms in that first form of implementation shown in Fig. 1 to 5 is the same.Figure 12 and 13 illustrates the setting of the valve constitution of second form of implementation, and it is similar to the setting at the valve constitution of first form of implementation shown in Fig. 6 and 7.At this, be used for water is discharged to external environment 202 from the hand washer 260 that is arranged in the railway carriage 250 at the valve constitution shown in Figure 12 and 13 200.At this, railway carriage or for example the inside of water closet be the space 201 of pressure attenuation.At this, second form of implementation can be arranged on railway carriage below according to valve constitution of the present invention, as shown in Figure 12, perhaps be arranged in the railway carriage, as shown in Figure 13.Principle of work according to the valve constitution of second form of implementation is installed in the flexible programs identical at two kinds.
Figure 14 to 18 illustrates according to duckbill valve 320 of the present invention, and described duckbill valve 320 for example can be using as boiler check valve in two forms of implementation shown in the aforementioned figures according to valve constitution of the present invention.Duckbill valve 320 has input end 321 and mouth 323.Between described input end 321 and mouth 323, constitute the passage 324 of boot media.Constitute the flange 329 of annular on input end 321, described flange 329 can be used in duckbill valve 320 is fixed in the interface channel (not shown).Annular lip 329 has outside radius 329a and inside radius 329b, as finding out in Figure 16.
Preferably side member 322a, the b and 327 that is made up of elastomeric material is connected on the flange 329 of described annular.Side member 327 is tapered, so that two sidewall 322a respect to one another, b abut one another in the zone 325 of the flattening of the bottom of duckbill valve 320.Preferably the preload of the elastomeric material by sidewall 322a, b is implemented in the flattening in the zone 325 of duckbill valve 320.The size of described preload preferably is defined as, and make the passage 324 of boot media to be opened at least in part by the medium that enters duckbill valve 320 by input end 321, so that medium can overflow once more on the exit end 323 of duckbill valve 320.Can find out that in the cross sectional drawing of Figure 16 two sidewall 322a, b abut one another basically.The details A shown in Figure 17 of Figure 16 has illustrated the structure of the slit between sidewall 322a, b, when current are out-of-date, under the state of opening, constitutes the passage 324 of boot media between described sidewall 322a, b.
Figure 18 illustrates the longitudinal sectional view of duckbill valve 320.At this bottom 325a in zone 325 that especially can find out the flattening of duckbill valve 320, in described duckbill valve 320, sidewall 322a, b abut against together, so that stop medium to flow into by the direction of mouth 323 along input end 321.
Figure 19 illustrates twin duckbill valve, and described twin duckbill valve is for example using as boiler check valve in the form of implementation shown in Fig. 1 to 13 according to valve constitution of the present invention.
Twin duckbill valve has input end 431 and mouth 432, and described input end 431 is connected with the passage 434 of mouth 432 by boot media.Two difference of twitching one's mouth sidewall 436a respect to one another, b and 437a, b preferably are made up of and preload elastomeric material, so that described sidewall 436a, b and 437a, b abut one another in part 435, and sealing twin duckbill valve 430.
On input end 431 and mouth 432, constitute annular lip 439,439a respectively, to be used for that twin duckbill valve for example is fixed on interface channel.
The size of the preload of sidewall 436a, b and 437a, b preferably is defined as, so that the medium that flows into the passage 434 of boot media by input end 431 or mouth 432 can overcome preload, and can open and pass through zone 435 at least in part.
If gas filed space 433 constitutes outside the passage of boot media, twin duckbill valve 430 can prevent that MEDIA FLOW from crossing the passage 434 of boot media so, and the air pressure in described gas filed space strengthens the closing force of sidewall 436, b and 437a, b, make the medium that enters the interface channel 434 of boot media by input end 431 or mouth 432 can not overcome the prestress in gas filed space 433 and the pressure opened areas 435 of effect additionally, and so can not pass through twin duckbill valve.
Claims (14)
1. device (100,200) that is used for liquid dielectric is discharged to from the space (101,201) with respect to ambient pressure environment decay described external environment (102,202) comprising:
-inlet (103,203), described inlet (103,203) is in air pressure with the space of described pressure attenuation and is connected in the installation site;
-outlet (104,204), described outlet (104,204) are positioned at described inlet along gravity direction in the installation site below, and in the installation site, are in air pressure and are connected with described external environment;
-interface channel (110,210), described interface channel (110,210) is connected described inlet with described outlet;
-boiler check valve (120,220), described boiler check valve (120,220) constitutes, and is used for
I. allow described liquid dielectric by gravity to flow to described outlet from described inlet, and
Ii. when surpass be present in the described external environment with respect to the predetermined gas in overpressure in the space of described pressure attenuation the time close;
-shutoff valve (130,230), described shutoff valve (130,230) constitutes, and is used for
I. allow described liquid dielectric by gravity to flow to described outlet from described inlet, and
Ii. in surpassing the space be present in described pressure attenuation with respect to the predetermined gas in overpressure of described external environment the time close.
2. according to the described valve constitution of last claim, it is characterized in that, described shutoff valve is arranged on described boiler check valve along gravity direction in the installation site below.
3. according to each described valve constitution in the aforementioned claim, it is characterized in that described boiler check valve constitutes duckbill valve, described duckbill valve has:
-input end (121,321);
-to twitch one's mouth, described twitching one's mouth is tapered under described input end sensing and along described direction along gravity direction in the installation site, and has two sidewalls of being made up of elastomeric material (122a, b, 322a, b); And
Under-mouth (123,323), described mouth (123,323) point to along gravity direction from described input end in the installation site,
The first passage (124,324) of the wherein said boot media of portion's formation within it between described input end and described mouth of twitching one's mouth, and described sidewall preload make
-in primary importance, described sidewall is extruding each other at least partly, and therefore when do not have medium to pass through that described input end flows in the described duckbill valve or when medium when described input end bumps against on the described duckbill valve, the first passage of described boot media seals at least partly, and
-therefore in the second place, described sidewall is separated from each other at least partly, and when medium passes through described input end and flows in the described duckbill valve, the first passage of described boot media is opened at least in part.
4. according to each described valve constitution in the aforementioned claim, it is characterized in that described shutoff valve constitutes the flexible pipe valve, described flexible pipe valve has:
-input end and in the installation site, be arranged on mouth (132) below the described input end along gravity direction, and
The second channel (134) of-boot media of forming by elastomeric material of in described interface channel, between described input end and described mouth, extending,
Wherein in the second channel of described boot media and the zone between the described interface channel, constitute gas filed gap (133) at described shutoff valve, so that the air pressure in being formed in described gas filed gap is when surpassing air pressure in the second channel be present in described boot media, the second channel of described boot media part at least compresses, and therefore described shutoff valve is closed.
5. according to last the described valve constitution of claim, it is characterized in that described gas filed gap (133) is in air pressure by bypass pressure pipeline (138) with the space of described pressure attenuation and is connected.
6. according to each described valve constitution in preceding two claims, it is characterized in that described shutoff valve constitutes twin duckbill valve (130,430), the second channel of wherein said boot media (134,434) constitutes
-in the installation site, under described input end sensing and along described direction tapered first, twitch one's mouth along gravity direction, described first twitches one's mouth has two the first side walls (136a, b that are made up of elastomeric material, 436a, b) and in the installation site, point to along gravity direction from described input end under the end, and
-in the installation site, from described mouth sensing and along described direction tapered second, twitch one's mouth along gravity direction, described second twitches one's mouth has two second sidewalls (137a, b that are made up of elastomeric material, 437a, b) and the end in the installation site, pointed to along gravity direction from mouth
-described first twitch one's mouth and second end of twitching one's mouth be connected to each other in a fluid tight manner.
7. according to last the described valve constitution of claim, it is characterized in that, the described first and/or second sidewall (136a that twitches one's mouth, b, 137a, b, 436a, b, 437a, b) preload, make when not having MEDIA FLOW to cross described twin duckbill valve, described sidewall is extruding each other at least partly in primary importance, and therefore the second channel of described boot media is closed at least partly, and when MEDIA FLOW was crossed described twin duckbill valve, described sidewall was separated from each other in the second place at least partly, and therefore the second channel of described boot media is opened at least in part.
8. according to each described valve constitution in the aforementioned claim 1 to 3, it is characterized in that described shutoff valve has:
-intermediate memory (231);
-be arranged in the described intermediate memory by ball (232), described density by ball (232) is less than described density of medium; And
-can osed top opening (233), described opening (233) be arranged in described intermediate memory in the installation site along on the bottom of gravity direction, and the diameter of described opening (233) is less than by ball size,
Wherein said by ball (232), described intermediate memory (231) and described can osed top opening (233) being arranged to and they are sized to, feasible
-in the primary importance of the closure of described shutoff valve, describedly cooperate with opening and seal described opening by the ball by gravity, and
-in the second place of opening of shutoff valve, the volume of described medium can accumulate in the described intermediate memory, so that buoyancy makes described in described medium be in reverse to gravity direction and float by ball, and makes described MEDIA FLOW cross described opening.
9. according to last the described valve constitution of claim, it is characterized in that described intermediate memory constitutes the cross-sectional plane extension of described interface channel.
10. according to each described valve constitution in preceding two claims, it is characterized in that the described cross-sectional plane contraction flow region that can the osed top opening constitutes described interface channel.
11. according to each described valve constitution in the first three items claim, it is characterized in that, described intermediate memory constitutes funnel-form, so that described intermediate memory is tapered along the described opening on the bottom (231a) of gravity direction in the installation site towards it is set.
12. according to each described valve constitution in the aforementioned claim 8 to 11, it is characterized in that, described shutoff valve have be arranged on described intermediate memory in the installation site along the intermediate memory input end on the upper end of gravity direction, by described intermediate memory input end, described liquid dielectric can enter in the described intermediate memory
It is characterized in that, described intermediate memory input end and described can being set to by the osed top opening, make the described medium that enters described shutoff valve through described intermediate memory input end flow through by the ball next door being positioned at described described on can the osed top opening basically, and/or flow through by the ball side being positioned at described described on can the osed top opening.
13. the application according to each described valve constitution in the aforementioned claim is used for the controlling liquid medium and is discharged to described external environment from the space with respect to the ambient pressure environment decay.
14. application according to each described valve constitution in the aforementioned claim 1 to 12, be used for the controlling liquid medium, sewage especially is from the railway carriage (150,250) with respect to the ambient pressure environment decay, especially in the high-speed train compartment, be discharged in the described external environment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008007748.8 | 2008-02-05 | ||
| DE200810007748 DE102008007748A1 (en) | 2008-02-05 | 2008-02-05 | Valve arrangement for gravitational liquid discharge with the overpressure and underpressure phase |
| PCT/EP2009/000764 WO2009098049A1 (en) | 2008-02-05 | 2009-02-05 | Ventilator arrangement for gravitational fluid discharge via high and low pressure phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101980910A true CN101980910A (en) | 2011-02-23 |
Family
ID=40602132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801112213A Pending CN101980910A (en) | 2008-02-05 | 2009-02-05 | Ventilator arrangement for gravitational fluid discharge via high and low pressure phase |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2250063A1 (en) |
| JP (1) | JP2011511232A (en) |
| CN (1) | CN101980910A (en) |
| DE (1) | DE102008007748A1 (en) |
| RU (1) | RU2010136985A (en) |
| WO (1) | WO2009098049A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359649A (en) * | 2011-11-02 | 2012-02-22 | 山东华腾环保科技有限公司 | Vacuum control valve |
| CN105556042A (en) * | 2013-09-20 | 2016-05-04 | 埃瓦克有限公司 | Vacuum toilet with alternating pinch-valve closure |
| CN107575601A (en) * | 2017-08-23 | 2018-01-12 | 上海泽宁环保科技有限公司 | A kind of negative pressure source power vacuum valve element, sealing device and interface valve |
| CN108266553A (en) * | 2016-12-30 | 2018-07-10 | 福州品行科技发展有限公司 | A kind of pressure maintaining valve with electrolysis unit |
| CN113154094A (en) * | 2021-04-02 | 2021-07-23 | 浙江机电职业技术学院 | Pipeline type membrane check valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202010014643U1 (en) * | 2010-10-26 | 2012-01-26 | Evac Gmbh | Valve arrangement for the removal of a liquid medium |
| DE202012000838U1 (en) | 2012-01-30 | 2013-05-02 | Evac Gmbh | Valve for the removal of a liquid medium from a space pressure-damped space |
| DE102012223242A1 (en) | 2012-12-14 | 2014-06-18 | Siemens Aktiengesellschaft | Rail vehicle with pressure shock-protected gray water pipe |
| DE102014207654A1 (en) | 2014-04-23 | 2015-10-29 | Siemens Aktiengesellschaft | Beak valve for a high-speed rail vehicle |
| DE102014217733A1 (en) * | 2014-09-04 | 2016-03-10 | Siemens Aktiengesellschaft | Rail vehicle with a drainage device having underbody plate |
| DE102015200937A1 (en) * | 2015-01-21 | 2016-07-21 | Siemens Aktiengesellschaft | Fluid valve, especially for vehicles |
| SG11201900682QA (en) * | 2016-07-27 | 2019-02-27 | Japan Transp Engineering Company | Water drain structure for railway vehicles |
| CN115415163B (en) * | 2022-10-09 | 2024-03-22 | 永州庆源农副产品加工有限公司 | Rice elephant removing machine for rice processing |
| AT18148U1 (en) * | 2023-02-13 | 2024-03-15 | Eh Holding Gmbh | Drainage system with sealing brush |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2327484B (en) * | 1997-07-22 | 2001-05-02 | T & N Technology Ltd | Gasket |
| DE19806973A1 (en) * | 1998-02-19 | 1999-08-26 | Roediger Anlagenbau | Vacuum valve |
| US6367505B1 (en) * | 2000-03-22 | 2002-04-09 | Red Valve Co., Inc. | Check valve with oversized bill |
| FI20011506A (en) * | 2001-07-10 | 2003-01-11 | Evac Int Oy | Vacuum Collection System |
| DE102004042147A1 (en) * | 2004-08-31 | 2006-03-02 | AOA Luftfahrtgeräte Gauting GmbH | Toilet arrangement for use in e.g. railway vehicle, has bowl and intermediate chamber integrally accommodated in sewage water tank, and integral unit assigned to chamber for evacuation of chamber and for producing high pressure in chamber |
| US8011033B2 (en) * | 2005-04-08 | 2011-09-06 | The Boeing Company | Aircraft sink with integrated waste disposal function |
| US7832431B2 (en) * | 2005-04-12 | 2010-11-16 | Doig Ian D | Valves and pumps |
| DE102005018449A1 (en) * | 2005-04-20 | 2006-10-26 | Roediger Vakuum- Und Haustechnik Gmbh | Vacuum valve |
-
2008
- 2008-02-05 DE DE200810007748 patent/DE102008007748A1/en not_active Withdrawn
-
2009
- 2009-02-05 WO PCT/EP2009/000764 patent/WO2009098049A1/en active Application Filing
- 2009-02-05 EP EP09708044A patent/EP2250063A1/en not_active Withdrawn
- 2009-02-05 JP JP2010545399A patent/JP2011511232A/en active Pending
- 2009-02-05 CN CN2009801112213A patent/CN101980910A/en active Pending
- 2009-02-05 RU RU2010136985/11A patent/RU2010136985A/en unknown
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359649A (en) * | 2011-11-02 | 2012-02-22 | 山东华腾环保科技有限公司 | Vacuum control valve |
| CN105556042A (en) * | 2013-09-20 | 2016-05-04 | 埃瓦克有限公司 | Vacuum toilet with alternating pinch-valve closure |
| CN105556042B (en) * | 2013-09-20 | 2017-11-07 | 埃瓦克有限公司 | The vacuum closet closed with alternate pinch valve |
| CN108266553A (en) * | 2016-12-30 | 2018-07-10 | 福州品行科技发展有限公司 | A kind of pressure maintaining valve with electrolysis unit |
| CN107575601A (en) * | 2017-08-23 | 2018-01-12 | 上海泽宁环保科技有限公司 | A kind of negative pressure source power vacuum valve element, sealing device and interface valve |
| CN107575601B (en) * | 2017-08-23 | 2024-03-19 | 上海泽宁环保科技有限公司 | Negative pressure source power vacuum valve core, sealing device and interface valve |
| CN113154094A (en) * | 2021-04-02 | 2021-07-23 | 浙江机电职业技术学院 | Pipeline type membrane check valve |
| CN113154094B (en) * | 2021-04-02 | 2023-11-14 | 浙江机电职业技术学院 | Pipeline type film check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008007748A1 (en) | 2009-08-06 |
| JP2011511232A (en) | 2011-04-07 |
| RU2010136985A (en) | 2012-03-20 |
| WO2009098049A1 (en) | 2009-08-13 |
| EP2250063A1 (en) | 2010-11-17 |
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Application publication date: 20110223 |