DK172092B1 - Device for vacuum discharge of sewage - Google Patents
Device for vacuum discharge of sewage Download PDFInfo
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- DK172092B1 DK172092B1 DK117289A DK117289A DK172092B1 DK 172092 B1 DK172092 B1 DK 172092B1 DK 117289 A DK117289 A DK 117289A DK 117289 A DK117289 A DK 117289A DK 172092 B1 DK172092 B1 DK 172092B1
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- reservoir
- pump
- displacement
- suction
- liquid ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/001—General arrangements, plants, flowsheets
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Jet Pumps And Other Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
DK 172092 B1DK 172092 B1
Indretninger til vakuumbortledning af spildevand har været kendt i lang tid. I spildevand af denne art findes der ofte forholdsvis bløde stoffer. De hidrører især fra toiletter. I rørledningerne føres de bort i 5 form af pakker, som optager hele ledningens tværsnit og derfor kaldes propper, som efterfølgende luftmasser presser fremad.Devices for vacuuming waste water have been known for a long time. In wastewater of this kind, relatively soft substances are often found. They mainly come from toilets. In the pipelines, they are carried in the form of packages which occupy the entire cross-section of the conduit and are therefore called plugs, which subsequent air masses push forward.
Sammenlignet med bortledning under tyngdekraft har vakuumbortledning tre hovedfordele: 10 - den fornødne rørledningsdiameter ved vakuumbort ledning er væsentlig mindre end for bortledning under udnyttelse af tyngdekraft, i modsætning til tyngdekraftbortledning fungerer vakuumbortledning uanset ledningens fald. Den gør det 15 muligt at rejse udløbet til en maksimal højde svarende til vakuumet udtrykt i meter vandsøjle, bortledningen af toiletspildevand kræver kun et lille skyllevolumen; mindre end 1,5 1 vand, i modsætning til 6-9 1 ved indretninger med tyngdekraftbortled-20 ning.Compared to gravity dissipation, vacuum dissipation has three main advantages: 10 - the required pipeline diameter for vacuum dissipated conduction is substantially smaller than gravity dissipation, as opposed to gravity dissipation, vacuum dissipation works regardless of the fall of the conduit. It makes it possible to raise the outlet to a maximum height corresponding to the vacuum expressed in meters of water column, the discharge of toilet waste water requires only a small flushing volume; less than 1.5 liters of water, as opposed to 6-9 liters of gravity-deflection devices.
Disse fordele er særledes markante for toiletinstallationer på skibe eller i U-både.These advantages are particularly significant for toilet installations on ships or in U-boats.
Der kendes forskellige metoder til dannelse af undertryk: 25 - En første kendt metode består i at samle spilde vandet i et reservoir, der evakueres ved hjælp af en vakuumpumpe. Pumpens funktion består udelukkende i at opretholde vakuumet i indretningen. Den tilsuger altså kun luft. For at kunne udtømme reservoiret uden at af-30 bryde driften, skal der forefindes en anden pumpe, der ved undertryk kan tilsuge de faste stoffer i spildevandet, eller der skal tilvejebringes indviklede slusesystemer. Da spildevandet i øvrigt opbevares under vakuum, sker der ingen aerob nedbrydning af stofferne.Various methods of forming a vacuum are known: 25 - A first known method consists of collecting waste water in a reservoir that is evacuated by means of a vacuum pump. The function of the pump consists solely in maintaining the vacuum in the device. So it only sucks air. In order to be able to empty the reservoir without interrupting operation, another pump must be provided which can suction the solids in the wastewater under pressure or provide complicated drainage systems. As the waste water is otherwise stored under vacuum, there is no aerobic degradation of the substances.
35 For at afhjælpe disse ulemper, går en anden kendt metode, jfr. FR patentskrift nr. 2 502 666 ud på 2 DK 172092 B1 at kompletere installationen med vakuumpumpe med en ba-rometrisk søjle, som muliggør en kontinuerlig overførsel af spildevandet til en kollektor ved atmosfærisk tryk. I så fald er reservoiret til opbevaring ikke 5 længere uundværlig. Denne metodes største ulempe er, at den kræver en væsentlig højdeforskel (mellem 5 og 10 meter) mellem kollektoren og vakuumnettets laveste punkt.35 To remedy these disadvantages, another known method, cf. FR patent no. 2 502 666 on 2 DK 172092 B1 to complete the installation with a vacuum pump with a barometric column, which enables a continuous transfer of the wastewater to a collector at atmospheric pressure. In that case, the reservoir for storage is no longer indispensable. The main disadvantage of this method is that it requires a significant difference in height (between 5 and 10 meters) between the collector and the vacuum point's lowest point.
En tredie kendt metode er beskrevet i FR patent-10 skrift nr. 2 308 742, og det tilsvarende US patentskrift nr. 4 034 421. Ved denne metode anvendes et reservoir til opbevaring ved atmosfærisk tryk. En cirkulationspumpe tilsuger spildevandet, der opbevares i reservoiret og fortrænger det under tryk i en ejektor, 15 hvis divergerende del returnerer det til reservoiret. Ejektorens hals er forbundet med udtømningsnettet, hvori den opretholder vakuumet. Spildevandet, luften og stofferne overføres altså fra vakuumnettet til reservoiret ved hjælp af ejektoren. Metoden har den for-20 del, at reservoiret forbliver under atmosfærisk tryk uden at anlægget gøres væsentligt mere indviklet. Den har dog den for ejektorer karakteristiske ulempe, nemlig en dårlig virkningsgrad, hvilket munder ud i overkapacitet for cirkulationspumpen, eller i et forøget 25 antal ejektor/pumpeaggregater.A third known method is described in FR Patent Specification No. 2,308,742 and the corresponding U.S. Patent No. 4,034,421. This method utilizes a reservoir for storage at atmospheric pressure. A circulation pump sucks the waste water stored in the reservoir and displaces it under pressure in an ejector, the divergent portion of which returns it to the reservoir. The throat of the ejector is connected to the discharge network in which it maintains the vacuum. The waste water, air and substances are thus transferred from the vacuum network to the reservoir by means of the ejector. The method has the advantage that the reservoir remains under atmospheric pressure without making the plant substantially more complicated. However, it has the disadvantage characteristic of ejectors, namely poor efficiency, which results in overcapacity of the circulation pump, or in an increased number of ejector / pump units.
En fjerde kendt metode består i at anvende en vakuumpumpe med snegl, hvormed der skabes og holdes undertryk i et med spildevandsopsamlingsnettet forbundet reservoir. En pumpe med en speciel snegl, som kan 30 tilsuge væske og gas, er blevet udviklet til dette anvendelsesformål. Pumpen kan dog ikke overføre faststoffer. Reservoiret skal altså være i stand til at sortere og findele. I så fald er installationen meget mere indviklet.A fourth known method consists in using a vacuum pump with auger, which creates and maintains vacuum in a reservoir connected to the wastewater collection network. A pump with a special auger capable of sucking liquid and gas has been developed for this purpose. However, the pump cannot transfer solids. The reservoir must thus be able to sort and divide. In that case, the installation is much more complicated.
35 Der kendes endvidere fra US-A-1 492 171 en ind retning til bortledning af spildevand, der er modtaget 3 DK 172092 B1 i et reservoir. Dette vand udstødes af et overtryk, som skabes over spildevandet i reservoiret ved hjælp af en væskeringpumpe, der tjener som luftkomprimator. Denne pumpe kan ikke anvendes til at pumpe spildevand.35 US-A-1 492 171 also discloses a wastewater discharge device received in a reservoir. This water is ejected by an overpressure created over the waste water in the reservoir by means of a liquid ring pump serving as an air compressor. This pump cannot be used to pump waste water.
5 FR-A-2 127 865 beskriver en væskeringpumpe, som tjener til komprimering af en gas.5 FR-A-2 127 865 discloses a liquid ring pump which serves to compress a gas.
DE-A1-34 18 326 beskriver et bortledningssystem med en væskepumpe, dette system arbejder uden vakuum.DE-A1-34 18 326 describes a drainage system with a liquid pump, this system works without a vacuum.
Det er opfindelsens formål at tilvejebringe en 10 enkel udførelse af en indretning til vakuumbortledning af spildevand. Indretningen skal også være robust, have en god energivirkningsgrad og kunne tilsluttes direkte, med eller uden bufferbeholder, til en kollektor under atmosfærisk tryk uden uden at skulle tage hensyn 15 til højde af barometrisk søjle.It is an object of the invention to provide a simple embodiment of a device for vacuuming waste water. The device must also be robust, have a good energy efficiency and can be connected directly, with or without a buffer container, to a collector under atmospheric pressure without having to take into account the height of the barometric column.
En indretning ifølge opfindelsen omfatter følgende elementer, som i det mindste, hvad angår nogle af deres funktioner hører til den tredie af de indledningsvis beskrevne kendte metoder, nemlig: 20 - en rørformet kollektor til modtagelse af spilde vandet som successive propper, samt luftmasser, som følger efter disse propper og hidrører fra atmosfæren, og organer til cirkulation, tilsugning og fortrængning, hvilke organer er tilsluttet kollektoren for 25 at tilsuge disse propper og disse på hinanden følgende luftmasser, under nedsænkning af lufttrykket i selve kollektoren til et sugetryk, der er mindre end det atmosfæriske tryk, og for at fortrænge spildevandet med et fortrængningstryk, der overstiger sugetrykket og er 30 tilstrækkeligt til fortrængning af spildevandet.A device according to the invention comprises the following elements which, at least in respect of some of their functions, belong to the third of the known methods initially described, namely: - a tubular collector for receiving the waste water as successive plugs, and air masses which follows these plugs and emanate from the atmosphere, and means for circulation, suction and displacement, which means are connected to the collector to suck these plugs and their successive air masses, while lowering the air pressure in the collector itself to a suction pressure less than the atmospheric pressure, and to displace the wastewater with a displacement pressure exceeding the suction pressure and sufficient to displace the wastewater.
ved denne kendte metode omfatter organerne til cirkulation, tilsugning og fortrængning navnlig cirkulationspumpen og ejektoren, hvoraf sidstnævnte udgør tilsugnings- og fortrængningsorganet.In this known method, the means for circulation, suction and displacement comprise in particular the circulation pump and ejector, the latter of which constitutes the suction and displacement means.
35 Opfindelsen adskiller sig fra denne kendte tek nik ved, at organerne til cirkulation, tilsugning og fortrængning omfatter 4 DK 172092 B1 en væskeringpumpe med en indsugningsport forbundet med kollektoren, en fortrængningsport til bortledning af spildevandet, og med en vandforsyningsport for tilførsel af en sådan mindre mængde vand, at der dannes 5 og/eller opretholdes væskering i pumpen, -og organer til vandtilførsel.The invention differs from this known technique in that the means for circulation, suction and displacement comprise a liquid ring pump having an intake port connected to the collector, a displacement port for draining the waste water, and with a water supply port for supplying such a smaller amount of water to form and / or maintain liquid ring in the pump, and water supply means.
I henhold til opfindelsen kan der yderligere, i påkommende fald være tale om følgende træk:According to the invention, further features, if any, may include the following features:
Som ved den kendte metode omfatter organerne til 10 cirkulation, tilsugning og fortrængning endvidere et reservoir, der midlertidigt nammer spildevandet under et lagringstryk, der overstiger sugetrykket, hvilket reservoir er forbundet med væskeringpumpens fortrængningsport.As in the known method, the means for circulation, suction and displacement further comprise a reservoir which temporarily takes the waste water under a storage pressure exceeding the suction pressure which is connected to the displacement port of the liquid ring pump.
15 - Et forsyningsrørssystem forbinder en nedre del af reservoiret med pumpens indsugningsport på en sådan måde, at der tilsuges en mindre mængde spildevand fra dette reservoir til opretholdelse af væskeringen, idet vandtilførselsorganerne tilfører klart vand og styres 20 på en sådan måde, at de kan afbryde tilførslen af vand, når ringen kan opretholdes med spildevandet.15 - A supply pipe system connects a lower portion of the reservoir to the pump inlet port in such a way that a small amount of wastewater from this reservoir is drawn to maintain the liquid ring, the water supply means supplying clear water and being controlled to interrupt the supply of water when the ring can be maintained with the wastewater.
Indretningen omfatter desuden ventiler og en ledning, der gør det muligt, efter en periode for opbevaring af spildevandet i reservoiret, der herved virker 25 som buffer, at tømme dette reservoir under væskeringpumpens suge- og fortrængningseffekt.The device further comprises valves and a conduit which, after a period of storage of the wastewater in the reservoir, thereby acting as a buffer, empties this reservoir under the suction and displacement effect of the liquid ring pump.
Ventilerne og ledning til tømning af reservoiret omfatter en luftindtagningsventil som, når den er åben, 30 forbinder pumpens indsugningsport med atmosfæren, en spærreventil der i lukket tilstand afbryder forbindelsen mellem indsugningsporten og kollektoren; og en afløbsledning, som forbinder den nedre del af bufferreservoiret med en bortledningszone på en så-35 dan måde, at pumpen i en lagringsperiode, hvori luftindtagningsventilen er lukket og spærreventilen åben, 5 DK 172092 B1 indsuger de på hinanden følgende propper og luftmasser og fortrænger spildevandet til reservoiret, hvor spildevandet opbevares, på en sådan måde, at pumpen, i en tømningsperiode hvori luftindtagningsventilen er åben 5 og spærreventilen lukket, indsuger en luftmængde fra atmosfæren og fortrænger denne luftmængde ind i reservoiret under et udtømningstryk, som udgør fortrængningstrykket, og som overstiger både det atmosfæriske tryk og lagringstrykket, hvorved den fortrængte luft-10 mængde via udtømningsledningen selv fortrænger det spildevand, der i en foregående lagringsperiode er blevet opbevaret i dette reservoir.The valves and conduit for emptying the reservoir include an air intake valve which, when open, connects the pump suction port with the atmosphere, a shut-off valve that interrupts the connection between the suction port and the collector; and a drain line connecting the lower portion of the buffer reservoir to a discharge zone in such a way that during a storage period during which the air intake valve is closed and the shut-off valve is open, the successive plugs and air masses and displacers are sucked in. the effluent to the reservoir where the effluent is stored in such a way that during a discharge period during which the air intake valve is open and the shut-off valve is closed, the pump injects an airflow from the atmosphere and displaces this airflow into the reservoir under a discharge pressure which constitutes the displacement pressure and exceeds both the atmospheric pressure and the storage pressure, whereby the displaced air quantity via the discharge line itself displaces the waste water which has been stored in this reservoir for a previous storage period.
Reservoiret har en øvre udluftningsventil, som er lukket i udtømningsperioden, og en i udtømningsled-15 ningen beliggende udtømningsventil, som er åben i udtømningsperioden .The reservoir has an upper vent valve which is closed during the discharge period and a discharge valve located in the discharge line which is open during the discharge period.
Kollektoren tilsluttes indsugningsporten på væ-skeringpumpen med en forankoblet fælde for tunge partikler.The collector is connected to the suction port of the liquid pump with a pre-coupled heavy particle trap.
20 - Opfindelsen anvendes især til bortledning af spildevand,som indeholder organiske stoffer, hvis forureningseffekt kan reduceres ved fortsat udluftning i en passende tid. I dette tilfælde er reservoiret et bufferreservoir til opbevaring af spildevandet i udluft-25 ningstiden, og fortrængningsporten står i forbindelse med reservoiret via en ledning, der munder ud i reservoirets nedre del, på en sådan måde, at den af pumpen fortrængte luft i form af bobler stiger op gennem det i dette reservoir værende spildevand.20 - The invention is particularly used for the discharge of wastewater containing organic matter, the pollution effect of which can be reduced by continued venting for a suitable time. In this case, the reservoir is a buffer reservoir for storing the wastewater during the venting time and the displacement port communicates with the reservoir via a conduit which opens into the lower part of the reservoir in such a way that the air displaced by the pump in the form of bubbles rise through the waste water in this reservoir.
30 - som kendte pumper omfatter væskeringpumpen: et pumpehus med en periferisk, i det væsentlige cylindrisk væg i forhold til husets akse, en rotor med skovle og rotor, der drejer i huset om denne akse, som er forsat for husets akse, 35 - en drivmotor for rotoren, en fordeler, der udgør en væg overfor pumpehusets indre rum, 6 DK 172092 B1 en indsugningsport og en fortrængningsport, udskåret i fordeleren, en tilførselsåbning til tilførsel af vand ind i huset på en sådan måde, at det på denne måde tilførte 5 vand danner en væskering, der af rotorskovlene holdes i rotation og af centrifugalkraften tvinges ud mod den periferiske væg, og at der med skovlene og væskeringen dannes indbyrdes adskilte pumpekamre, der indsuger et fluidum, der skal pumpes gennem indsugningsporten og 10 fortrænges gennem fortrængningsporten. Ifølge opfindelsen er indsugningsporten stor nok til at kunne rumme en cirkel med diameter på 40 mm, for dermed at lette indsugningen af forholdsvis bløde stoffer, som kan forekomme i propperne.30 - as known pumps, the liquid ring pump comprises: a pump housing having a peripheral, substantially cylindrical wall relative to the axis of the housing, a rotor with vanes and rotor rotating in the housing about this axis which is perpendicular to the axis of the housing; a rotor drive motor, a distributor forming a wall opposite the pump housing interior, a suction port and a displacement port, cut into the distributor, a supply port for supplying water into the housing in such a way that it is supplied in this manner. 5 water forms a liquid ring which is held in rotation by the rotor blades and forced by the centrifugal force towards the peripheral wall, and that with the blades and the liquid ring, separate pump chambers are formed which suck a fluid to be pumped through the suction port and displaced through the displacement port. According to the invention, the suction port is large enough to accommodate a 40 mm diameter circle, thus facilitating the suction of relatively soft substances which may occur in the plugs.
1 5 - Vaskeringpumpen omfatter desuden rørformede pas sager til indsugning og bortledning, der står i forbindelse med porte til indsugning henholdsvis fortrængning, og hver har en akse (33A, 34A). Ifølge opfindelsen er indsugningspassagens akse og fortrængningspassa-20 gens akse i det væsentlige parallelle med huset og hjulets akser, og deres forlængelser går i det væsentlige gennem indsugningsporten henholdsvis fortrængningsporten.1 5 - The washing pump additionally comprises tubular suction and discharge passages, which are connected with suction and displacement gates, respectively, and each has an axis (33A, 34A). According to the invention, the axis of the suction passage and the displacement passage axis are substantially parallel to the housing and the axes of the wheel, and their extensions extend substantially through the suction port and the displacement port, respectively.
Opfindelsen forklares nærmere i det følgende ved 2 5 hjælp af en udførelsesform og med henvisning med teg ningen, hvor:The invention is further explained in the following by means of an embodiment and with reference to the drawing, in which:
Fig. 1 viser et perspektivbillede af en kendt væskeringpumpe, med delene trukket fra hinanden, 30 fig. 2 viser et snitbillede af pumpens hus i drift, fig. 3 et billede af en væskeringpumpes fordeler, modificeret ifølge opfindelsen, og hvor den kendte pumpefordelers indsug-35 nings- og fortrængningsport er indtegnet med punkteret streg, 7 DK 172092 B1 fig. 4 et endebillede af den modificerede pumpe, hvori den kendte pumpes indsugnings-og fortrængningsport er indtegnet med punkteret streg, og 5 fig. 5, 6 og 7 viser helhedsbilleder af en før ste, en anden og en tredje indretning ifølge opfindelsen.FIG. 1 shows a perspective view of a known liquid ring pump, with the parts pulled apart, FIG. 2 is a sectional view of the pump housing in operation; FIG. 3 is a view of the distributor of a liquid ring pump, modified in accordance with the invention, in which the intake and displacement port of the known pump distributor is plotted with a dashed line; FIG. 4 is an end view of the modified pump, in which the intake and displacement port of the known pump is indicated by a dashed line; and FIG. 5, 6 and 7 show overall views of a first, second and third device according to the invention.
Væskeringpumpens princip har længe været kendt til gaspumpning, især til at evakuere en beholder. For 10 eksempel kendes der fra FR-A-2 127 865 væskeringpumpe til dette formål, jfr. fig. 1, omfatte en rotor 11 med skovle HA, som drives ved hjælp af en elektromotor 10. Rotoren drejer i et pumpehus 12 om en akse 11B, som er parallel med husets akse 12A. Gassen ind-15 føres i et indløb 13 i et endestykke 11 . Den føres derefter ind i pumpehuset via en fordeler 16's indsugningsport 15 (jvf. fig. 3). Den komprimerede gas fortrænges derefter gennem en fortrængningsport 17 i fordeleren og føres ud gennem et udløb i endestykket.The principle of the liquid ring pump has long been known for gas pumping, especially for evacuating a container. For example, FR-A-2 127 865 liquid ring pump is known for this purpose, cf. FIG. 1, includes a rotor 11 with vanes HA driven by an electric motor 10. The rotor in a pump housing 12 rotates about an axis 11B which is parallel to the axis 12A of the housing. The gas is introduced into an inlet 13 in an end piece 11. It is then introduced into the pump housing via an inlet port 15 of a distributor 16 (cf. Fig. 3). The compressed gas is then displaced through a displacement port 17 in the distributor and discharged through an outlet in the end piece.
20 En væskering 92 (jvf. fig. 2) udgøres af vand, der i passende mængder er blevet indført i huset 12, og som drives i rotation af rotoren 11. Centrifugalkraften presser vandet mod husets cylindriske væg, og der efterlades aksialt et frit rum til tilsugning og kompri-25 mering af gassen. Væskeringen danner for gassen en tætning mellem rotorskovlene og pumpehusets væg. To successive skovle og væskeringen afgrænser et drejende kammer, hvis volumen er stort, når det passerer foran indsugningsporten 15, henholdsvis lille foran for-30 trængningsporten 17.A liquid ring 92 (cf. Fig. 2) is constituted by water which has been introduced into the housing 12 in appropriate quantities and which is driven in rotation by the rotor 11. The centrifugal force presses the water against the cylindrical wall of the housing, leaving axially a free space for suction and compression of the gas. The liquid ring forms a seal for the gas between the rotor blades and the pump housing wall. Two successive vanes and the liquid ring define a rotating chamber, the volume of which is large as it passes in front of the suction port 15 and small, respectively, in front of the constriction port 17.
Den varme, der udvikles ved gaskompression og ved friktion, absorberes af vaskeringens vand, som derfor skal fornyes for at undgå en overophedning. Derfor er der permanent forsyning af vand til væskeringen ved 35 hjælp af en åbning 19 i endestykket, hvorefter vandet trænger ind i pumpehuset gennem en forsyningsåbning 100 8 DK 172092 B1 i fordeleren. Dette vandoverskud øger væskeringens radiale tykkelse, hvorefter den kontinuerligt afleder det overskydende vand gennem fortrængningsåbningen 17. Fordelene ved denne type pumpe er, at den er robust og 5 lidet følsom overfor tilstedeværelse af væsker eller støv, som medbringes i den pumpede gas.The heat generated by gas compression and by friction is absorbed by the wash water, which must therefore be renewed to avoid overheating. Therefore, there is a permanent supply of water to the liquid ring by means of an opening 19 in the end piece, after which the water enters the pump housing through a supply opening 100 8 in the distributor. This excess water increases the radial thickness of the liquid ring, after which it continuously discharges the excess water through the displacement opening 17. The advantages of this type of pump are that it is robust and not very sensitive to the presence of liquids or dust which is carried in the pumped gas.
Ifølge opfindelsen anvendes en lignende pumpe til tilsugning og fortrængning af en vandholdig masse.According to the invention, a similar pump is used for suction and displacement of an aqueous mass.
Det har vist sig, at pumpen er egnet til overførsel af 10 bløde stoffer, som trænger ind i pumpehuset gennem indsugningsporten 15 og hakkes af rotoren 11's skovle. Findelingen muliggøres af den robuste rotor, som denne type pumper er udstyret med. For at lette overførslen af stofferne og undgå pumpens tilstopning, er denne mo-15 dificeret på følgende måde: 1) Fordeleren 16's indsugningsport 15 og fortrængningsport 17 er udskiftet med større porte 21 og 22, som vist i fig. 3. Formålet med dette er hovedsageligt at undgå, at et element, 20 der har kunnet komme ind i vakuumnettet, kan blokere indgangen til indsugningsporten. Derfor er denne port gjort så meget større, at den kan omgive en cirkel, hvis diameter i det mindste svarer til inderdiameteren af den kanalisation, 25 hvortil toiletkummer sluttes, dvs. ca. 40 mm; 2) For at undgå tilstopning af passagerne mellem endestykket 14 og fordeleren 16 er der i stedet for indsugningsflangen 13 og fortrængningsflangen 18 anvendt hhv. en indsugnings- 30 flange 3 3 og en fortrængningsflange 34, som har åbninger med større diameter, frembragt i den flade del af endestykket 14, på en sådan måde, at deres akser er parallelle med rotoraksen 11B og pumpehusets akse 12A og går igen-35 nem indsugningsporten 21 og fortrængningspor ten 22 i de zoner, hvor disse er større.It has been found that the pump is suitable for transferring 10 soft substances which enter the pump housing through the suction port 15 and are notched by the vanes of the rotor 11. The comminution is made possible by the robust rotor with which this type of pump is equipped. In order to facilitate the transfer of the substances and to avoid the pump clogging, this modifier is modified as follows: 1) The intake port 15 and the displacement port 17 of the distributor 16 are replaced with larger ports 21 and 22, as shown in FIG. 3. The purpose of this is mainly to prevent an element 20 which has been able to enter the vacuum network can block the entrance to the suction port. Therefore, this gate is made so much larger that it can surround a circle whose diameter at least corresponds to the inner diameter of the channel to which the toilet bowl is connected, i.e. ca. 40 mm; 2) In order to avoid clogging of the passages between the end piece 14 and the distributor 16, instead of the suction flange 13 and the displacement flange 18, respectively. a suction flange 33 and a displacement flange 34 having larger diameter openings formed in the flat portion of the end piece 14 in such a way that their axes are parallel to the rotor axis 11B and the pump housing axis 12A and reciprocate. the suction port 21 and the displacement port 22 in the zones where these are larger.
DK 172092 B1 9 I fig. 5 er der vist en første indretning, hvori væskeringpumpen er tilsluttet et net til vakuumbortledning af spildevand. Nettet er repræsenteret skematisk med en kollektor 42 med dertil koblet toilet, udsty-5 ret med en vandcisterne og en lufttæt bortledningsventil. Udskylningen og ventilen er af kendte typer og er ikke vist. Indsugningsflangen 33 er tilsluttet kollek-tornettet. Fortrængningsflangen 34 er med røret 41 direkte forbundet med bortlednings- eller kloakrøret 10 44, som står under atmosfæretryk. For at væskeringpum- pen kan fungere, kræves en mindre forsyning med vand for at opretholde væskeringens volumen og sikre afkøling. Denne forsyning sker via pumpens forsyningsport 19 gennem ledningen 45, og vandmængden reguleres ved 15 hjælp af ventilen 46.DK 172092 B1 9 In fig. 5, a first device is shown in which the liquid ring pump is connected to a wastewater vacuum discharge network. The mesh is represented schematically with a collector 42 with associated toilet, equipped with a water cistern and an airtight drain valve. The flush and valve are of known types and are not shown. Inlet flange 33 is connected to the collector grid. The displacement flange 34 is directly connected with the pipe 41 to the drain or sewer pipe 10 44 which is under atmospheric pressure. In order for the liquid ring pump to function, a smaller supply of water is required to maintain the volume of the liquid ring and ensure cooling. This supply is effected via the supply port 19 of the pump through the conduit 45, and the amount of water is regulated by the valve 46.
I denne indretning sikrer væskeringpumpen overførslen af gas, vand og de faste stoffer fra vakuumnettet til kloakrøret 44, der står under atmosfærisk tryk, samt findeling af de faste stoffer. Opfindelsens 20 fordele fremgår klart, eftersom der kun er behov for en enkelt roterende maskine til den tredobbelte funktion af en vakuumpumpe, en vandpumpe og en knuser, og bufferreservoiret er ikke absolut nødvendigt, hvorhos den anvendte elektriske effekt er langt mindre end den ef-25 fekt, der kræves ved en indretning med ejektorer med samme sugekapacitet.In this device, the liquid ring pump ensures the transfer of gas, water and the solids from the vacuum network to the sewer pipe 44 which is under atmospheric pressure as well as the comminution of the solids. The advantages of the invention are clear, since only a single rotary machine is needed for the triple function of a vacuum pump, a water pump and a crusher, and the buffer reservoir is not absolutely necessary, where the electrical power used is far less than the power used. defect required by a device with ejectors of the same suction capacity.
Ifølge en foretrukken udførelsesform, jfr. fig.According to a preferred embodiment, cf. FIG.
5, er der foran væskeringpumpen opstillet en bundfældningsbeholder for at tilbageholde meget tunge partik-30 ler, som f.eks. metalliske emner, som ved uheld eller tilsigtet kunne være blevet indført i indretningen til opsamling af spildevand, og som kunne ødelægge væskeringpumpen. Bundfældningsbeholderen kan bestå af en enkel kasse 51, som gennemstrømmes af spildevandet, og 35 hvor indgangs- og udgangsporte 52 og 53 er placeret ved den øvre ende af kassen, så at tunge emner falder 10 DK 172092 B1 ned til kassens bund og ikke kommer til pumpen. Kassen kan periodisk tømmes ved hjælp af et inspektionslåg 54.5, a settling vessel is arranged in front of the liquid ring pump to retain very heavy particles, such as e.g. metallic items which could have been accidentally or intentionally introduced into the waste water collection device and which could damage the liquid ring pump. The settling container may consist of a simple box 51, which is flowed through the waste water, and 35 where the entrance and exit ports 52 and 53 are located at the upper end of the box, so that heavy items fall to the bottom of the box and do not reach the bottom. pump. The box can be emptied periodically by means of an inspection lid 54.
Ifølge en anden foretrukken udførelsesform, jfr.According to another preferred embodiment, cf.
5 fig. 5, er det fordelagtigt mellem vakuumnettet og va-skeringpumpen at opstille et anti-returspjæld 55 og foran dette en vakuumsensor 56, der ved hjælp af et re-lais 57 kan starte pumpen ved en høj tryktærskel og stoppe den ved en lav tryktærskel. Hvis sanitærinstal-10 lationen kun bruges lidt eller slet ikke, stopper væske ringpumpen, når trykket når den lave tærskel, og spjældet lukker for dermed at isolere vakuumindretningen. Alt efter hvor hyppigt installationerne bruges, vokser undertrykket langsomt. Pumpen starter så igen 15 ved den høje tryktærskel og bortleder vandet og stofferne, der er akkumulerede i ledningerne.5 FIG. 5, it is advantageous between the vacuum network and the vacuum pump to set up an anti-return valve 55 and above this a vacuum sensor 56 which can, by means of a relay 57, start the pump at a high pressure threshold and stop it at a low pressure threshold. If the sanitary installation is used only slightly or not at all, the liquid ring pump stops when the pressure reaches the low threshold and the damper closes, thus isolating the vacuum device. Depending on how frequently the installations are used, the suppression grows slowly. The pump then starts again 15 at the high pressure threshold and discharges the water and substances accumulated in the pipes.
En ulempe ved denne først beskrevne indretning er, at det er nødvendigt at forsyne væskeringen med klart vand, hvilket øger vandforbruget for hele indret-20 ningen. For at afhjælpe denne ulempe, foretrækkes det melleme pumpen og udløbskollektoren at anbringe en anden indretning ifølge opfindelsen, et bufferereservoir 61 som vist i fig. 6. Dette reservoir er udstyret med en udluftningskanal 62 og en udtømningsledning 63, 25 der afspærres af en ventil 64. Reservoiret udtømmes periodisk eller kontinuerligt med vilkårlige, ikke nærmere beskrevne midler, uden at niveauet falder under et minimumsniveau oven over forsyningsniveauet for en ledning 65, der forbinder reservoirets bund med væske-30 ringpumpens tilsugningsledning 66. På denne måde kan væskeringen forsynes ved recirkulation af en del af spildevandet, da udløbet til ledningen 65 sker uden hjælpepumpning og alene på grund af det af væskering-pumpen frembragt undertryk. Der er dog brug for frisk 35 vand 45 i opstartfasen for pumpen. Denne forsyning afbrydes derefter ved hjælp af ventilen 46.A disadvantage of this first described device is that it is necessary to provide the liquid ring with clear water, which increases the water consumption for the whole device. In order to alleviate this disadvantage, it is preferable to place between the pump and the outlet collector another device according to the invention, a buffer reservoir 61 as shown in FIG. 6. This reservoir is provided with a vent duct 62 and a discharge conduit 63, 25 which is blocked by a valve 64. The reservoir is periodically or continuously discharged by any means not described without the level falling below a minimum level above the supply level of a conduit 65. connecting the bottom of the reservoir to the suction line 66 of the liquid ring pump. In this way, the liquid ring can be provided by recirculating a portion of the wastewater, since the outlet to line 65 occurs without auxiliary pumping and only because of the negative pressure generated by the liquid ring pump. However, fresh 35 water 45 is needed during the pump start-up phase. This supply is then disconnected by the valve 46.
Claims (9)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8803209 | 1988-03-11 | ||
| FR8803209A FR2628459B1 (en) | 1988-03-11 | 1988-03-11 | WASTE WATER VACUUM DISCHARGE SYSTEM |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK117289D0 DK117289D0 (en) | 1989-03-10 |
| DK117289A DK117289A (en) | 1989-09-12 |
| DK172092B1 true DK172092B1 (en) | 1997-10-20 |
Family
ID=9364197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK117289A DK172092B1 (en) | 1988-03-11 | 1989-03-10 | Device for vacuum discharge of sewage |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0333045B1 (en) |
| DE (1) | DE68924081T2 (en) |
| DK (1) | DK172092B1 (en) |
| FI (1) | FI891094A (en) |
| FR (1) | FR2628459B1 (en) |
| NO (1) | NO891008L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006892A1 (en) * | 2001-07-10 | 2003-01-23 | Evac International Oy | Vacuum collection system |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2694317B1 (en) * | 1992-07-28 | 1994-10-14 | Felden Jean Marie | Installation for the treatment of faeces and the cleaning of sanitary facilities for passenger transport. |
| US6692234B2 (en) * | 1999-03-22 | 2004-02-17 | Water Management Systems | Pump system with vacuum source |
| FI111289B (en) | 2000-07-10 | 2003-06-30 | Evac Int Oy | vacuum System |
| DE102006010569A1 (en) * | 2006-03-06 | 2007-09-20 | Roediger Vakuum- Und Haustechnik Gmbh | Vacuum sewer facility |
| FI125301B (en) | 2006-12-21 | 2015-08-31 | Evac Oy | Vacuum drainage system and method for using a vacuum drainage system |
| US7878768B2 (en) | 2007-01-19 | 2011-02-01 | David Muhs | Vacuum pump with wear adjustment |
| BRPI0915533B1 (en) * | 2008-07-10 | 2019-02-26 | Jets As | METHOD TO CONTROL VACUUM GENERATORS |
| US8998586B2 (en) | 2009-08-24 | 2015-04-07 | David Muhs | Self priming pump assembly with a direct drive vacuum pump |
| DE102011016243A1 (en) * | 2011-04-06 | 2012-10-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Drainage system for use in e.g. home, has waste water tank into which sewage/organic waste is sucked, and devices for generating required low and high pressure on respective suction and pressing sides for sucking and discharging sewage |
| FI127077B (en) | 2016-04-19 | 2017-10-31 | Evac Oy | A method for controlling a vacuum system and a vacuum system |
| CN117432040B (en) * | 2023-12-19 | 2024-03-15 | 山东瀚广建设项目管理有限公司 | Drainage device for construction engineering |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1492171A (en) * | 1923-04-11 | 1924-04-29 | Irving C Jennings | Sewage ejector |
| GB1326879A (en) * | 1971-03-03 | 1973-08-15 | Nash Engineering Co | Liquid ring pump lobe purge |
| SE389882B (en) * | 1975-04-23 | 1976-11-22 | Ifoe Ab | DEVICE AT VACUUM CLOSET WITH COLLECTION CONTAINER |
| US3956776A (en) * | 1975-05-28 | 1976-05-18 | Thetford Corporation | Liquid waste material conveying system for toilets and the like |
| DE3418326A1 (en) * | 1984-05-17 | 1985-11-21 | Willi 4973 Vlotho Cordes | Sewage pumping station |
| DE8708108U1 (en) * | 1987-06-09 | 1987-08-06 | Siemens AG, 1000 Berlin und 8000 München | Liquid ring machine |
-
1988
- 1988-03-11 FR FR8803209A patent/FR2628459B1/en not_active Expired - Lifetime
-
1989
- 1989-03-08 FI FI891094A patent/FI891094A/en not_active Application Discontinuation
- 1989-03-09 NO NO89891008A patent/NO891008L/en unknown
- 1989-03-09 DE DE1989624081 patent/DE68924081T2/en not_active Expired - Lifetime
- 1989-03-09 EP EP19890104226 patent/EP0333045B1/en not_active Expired - Lifetime
- 1989-03-10 DK DK117289A patent/DK172092B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006892A1 (en) * | 2001-07-10 | 2003-01-23 | Evac International Oy | Vacuum collection system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE68924081D1 (en) | 1995-10-12 |
| DK117289A (en) | 1989-09-12 |
| DK117289D0 (en) | 1989-03-10 |
| NO891008L (en) | 1989-09-12 |
| EP0333045B1 (en) | 1995-09-06 |
| EP0333045A1 (en) | 1989-09-20 |
| NO891008D0 (en) | 1989-03-09 |
| FR2628459A1 (en) | 1989-09-15 |
| FR2628459B1 (en) | 1992-07-31 |
| FI891094A0 (en) | 1989-03-08 |
| DE68924081T2 (en) | 1996-02-01 |
| FI891094A (en) | 1989-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Patent granted (law 1993) | ||
| PUP | Patent expired |