SE537995C2 - Method and equipment for identifying and limiting leakage in pipe systems - Google Patents

Method and equipment for identifying and limiting leakage in pipe systems Download PDF

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Publication number
SE537995C2
SE537995C2 SE1450951A SE1450951A SE537995C2 SE 537995 C2 SE537995 C2 SE 537995C2 SE 1450951 A SE1450951 A SE 1450951A SE 1450951 A SE1450951 A SE 1450951A SE 537995 C2 SE537995 C2 SE 537995C2
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Sweden
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volume
water
valve
shut
flow
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SE1450951A
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Swedish (sv)
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SE1450951A1 (en
Inventor
Veijo Laurila
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Lvi Urakointi V Laurila Ky
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Publication of SE1450951A1 publication Critical patent/SE1450951A1/en
Publication of SE537995C2 publication Critical patent/SE537995C2/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F5/00—Measuring a proportion of the volume flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/15—Leakage reduction or detection in water storage or distribution

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Pipeline Systems (AREA)

Abstract

537 99 Sammandrag Uppfinningen galler speciellt en metod och utrustning for att identifiera och forhindra en lackning i rorsystem, lackningsvakt. Lackningsvaktsystemet bestAr av allmant tillgangliga vattenrorsystemkomponenter, som har arrangerats att operera som en ny funktionell enhet speciellt for att identifiera en liten lackning som p5g5r under en langre tid, och for att forhindra en plotslig stor lackning. Lackningsvaktsystemets delar är: Eldriven avstangningsventil (3), som är spanningsfri, nar den är stangd, expansionskarl (4), volymstromsvakt (7) och regleringscentrum (11). Avstangningsventilen (3) är alltid stangd om man inte tar vatten i bruk fr5n natet. Nar man oppnar t.ex. en kran, aktiverar volymstromsvakten (7) en stromning genom expansionskarlets (4) forsta volym (6) och oppnar genom regleringscentrumet (11) avstangningsventilen (3), IA bruk av vattnet kan borja. 537 99 Summary The invention relates in particular to a method and equipment for identifying and preventing a paint job in a rudder system, paint guard. The paint guard system consists of generally accessible water pipe system components, which have been arranged to operate as a new functional unit especially to identify a small paint that has been working for a long time, and to prevent a sudden large paint. The parts of the paint guard system are: Electric shut-off valve (3), which is voltage-free when closed, expansion vessel (4), volume flow guard (7) and control center (11). The shut-off valve (3) is always closed if you do not use water from the net. When opening e.g. a tap, the volume flow monitor (7) activates a flow through the first volume (6) of the expansion vessel (4) and opens through the control center (11) the shut-off valve (3), IA use of the water can begin.

Description

537 99 Ovan namnda nackdelar kan undvikas och de ovan namnda malen nAs med losningen "Lackagevakt" enligt uppfinningen, som kannetecknas av vad man har definierat i kannetecknande del av pate ntkrav 1. The above-mentioned disadvantages can be avoided and the above-mentioned templates nAs with the solution "Lacquer guard" according to the invention, which can be characterized by what has been defined in the can-drawing part of claim 1.

Losningen "Lackagevakt" enligt uppfinningen beskrivs i det foljande med hjalp av ett exempel. The solution "Lacquer guard" according to the invention is described in the following with the aid of an example.

I utg5ngslaget Jr vattenledningsnatets huvudventil, fordelaktigast en magnetventil, stangd. Nar man oppnar kranen uppst5r en stromning, vars storlek normalt overstiger volymstromningsvaktens gransvarde. Gransvardet kan ha reglerats t.ex. att motsvara en stromning av t.ex. 0,7 1/mm. Vid en vanlig vattenanvandningssituation ligger stromningen klart over gransvardet (normal avvattning är inom omr5det 50 — 1500 1/h [0,8 — 25 l/min]). Volymstromningsvakten (on/off) aktiverar sig och aktiverar genom regleringscentralen magnetventilen att oppna sig, sa att man kan ta vatten fran vattenledningsnatet. Nar man slutar att ta vatten slutar stromningen, volymstromningsvakten deaktiverar sig och magnetventilen stanger sig. Det forblir i expansionskarlet en vattenmangd motsvarande expansionskarlets vattenvolym (ungefar 0,5 dl) med kommunalnatets tryck 3-6 bar. Om det finns ett &kande skarvror, en droppande kran, ett overstrommande toalettkarl osv. i natet, är lackningen langsam och stromningen är generellt mindre an volymstromningsvaktens gransvarde, exempelvis 0,7 1/mm, och d5 aktiverar kopplingen sig inte och magnetventilen oppnar sig inte. Lackningens maximala storlek är expansionskarlets vattenvolyms storlek, t.ex. 0,5 dl. At the starting point, the main valve of the water pipe, preferably a solenoid valve, is closed. When the tap is opened, a flow occurs, the size of which normally exceeds the spruce value of the volume flow monitor. The spruce value may have been regulated e.g. to correspond to a flow of e.g. 0.7 1 / mm. In a normal water use situation, the flow is clearly above the spruce threshold (normal dewatering is within the range 50 - 1500 1 / h [0.8 - 25 l / min]). The volume flow monitor (on / off) activates and activates through the control center the solenoid valve to open, so that you can take water from the water supply network. When you stop taking water, the flow stops, the volume flow switch deactivates and the solenoid valve closes. There is a quantity of water in the expansion vessel corresponding to the expansion vessel's water volume (approximately 0.5 dl) with the municipal night pressure 3-6 bar. If there are a splashing joints, a dripping faucet, an overflowing toilet, etc. in the night, the varnishing is slow and the flow is generally less than the spruce value of the volume flow monitor, for example 0.7 1 / mm, and d5 the coupling does not activate and the solenoid valve does not open. The maximum size of the lacquer is the size of the expansion vessel's water volume, e.g. 0.5 dl.

Enligt forskning uppst5r den storsta delen avvattenskador som resultat av sm5 lackningar som p5g5r over en lAng tid och darfor är det av storsta betydelse att iaktta aven de minsta lackningar och det är inte avgorande viktigt att mata lackningens storlek. According to research, the majority of water damage occurs as a result of small lacquers that last for a long time and therefore it is of the utmost importance to observe even the smallest lacquers and it is not crucial to feed the size of the lacquer.

I losningen "Lackagevakt" enligt uppfinningen kan man iaktta lackor av mikrostorlek under t.ex. langa franyarotider. Om expansionskarlet är tomt aven under en lang tid, veckor eller manader, forhindras vattenuttag tills felet ha r lokaliserats och kvitterats pa regleringscentralen. Om ett totalt roravbrott intraffar, stangs magnetventilen efter att ha varit oppen den satta tiden, t.ex. 5 minuter. In the solution "Lacquer guard" according to the invention, one can observe lacquers of micro size under e.g. long franyarotider. If the expansion vessel is also empty for a long time, weeks or months, water withdrawal is prevented until the fault has been located and acknowledged at the control center. If a total rudder break occurs, the solenoid valve closes after being open for the set time, e.g. 5 minutes.

For ett oavbrutet vattenuttag langre an 5 minuter, t.ex. for att vattna i tradgArden eller tvatta bilen, osv. g5r man forbi lackagevakten genom att i regleringscentralen valja manuell styrning eller man valjer en tidsperiod, t.ex. 60 min, varefter de ursprungliga gransvardena kommer tillbaka automatiskt. Beskrivningen ovan berattar overgripande hur man nAr namnda mAl med systemet lackagevakt enligt uppfinningen. 3 537 99 I det foljande beskrivs uppfinningen mera i detalj i exempellosningar. For an uninterrupted water withdrawal longer than 5 minutes, e.g. to water in the garden or wash the car, etc. do you pass the paint guard by selecting manual control in the control center or do you select a time period, e.g. 60 min, after which the original spruce values return automatically. The description above generally tells how to achieve the said goal with the system lacquer guard according to the invention. In the following, the invention is described in more detail in exemplary solutions.

I det foljande beskriver man uppfinningen mera detaljerat med hanvisning till bifogade ritningar, dar man presenterar olika varianter av metoden enligt uppfinningen och anvandningsmojligheter. In the following, the invention is described in more detail with reference to the accompanying drawings, in which different variants of the method according to the invention and possibilities of use are presented.

Figur 1Diagram om en exempelkonstruktion, fastighetens bruksvattenledning med sina huvudkomponenter. Figure 1 Diagram of an example construction, the property's domestic water pipe with its main components.

Figur 2En detalj av en exempelkonstruktion, tvarsnitt av en volymstromningsvakt frAn sidan. Figure 2A detail of an example construction, cross section of a volume flow monitor From the side.

Figur 3Foreg5ende volymstromningsvakt sedd fr5n ovan, i delvis genomskarning Figur 4Foregaende volymstromningsvakt sedd fran sidan. Figure 3 Previous volume flow monitor seen from above, in partial section Figure 4 Previous volume flow monitor seen from the side.

Nedan beskrivs lackagevakten som visas i figur 1 for realisering av uppfinningen t.ex. i bostadsfastighetens vattenledning. The lacquer guard shown in Figure 1 for realizing the invention is described below, e.g. in the residential property's water main.

Det finns foljande huvuddelar i diagrammet: tilloppsvattenledning 1 t.ex. frAn ett kommunalt vattenledningsnat. Det kommunala vattenledningsnatet och bruksvattenledningen 14 Jr separerade av en ventilgrupp 2, som är utrustad med vattenmatare och avstangnings/kontrastventiler, en avstangningsventil 3 som styrs att stanga bruksvattennatet, t.ex. en eldriven magnetventil, vattenkarl 4 med varierbar volym, t.ex. membranexpansionskarl, dar en med natvatten fylld forsta volym 6 och en t.ex. med ett gasartat amne fylld andra volym 5, separeras t.ex. med hjalp av en membran i membranexpansionskarlet. Den foljande delen i bruksvattenledningen är en volymstromningsvakt 7, innefattande ett stromningsidentifieringsorgan 9 och t.ex. justering med ett justeringsorgan 8 for att optimera kansligheten, som reagerar p5 stromningen. Vidare efter volymstromningsvakten finns bruksvattenledningen 14. Informationskopplingen 10 frAn volymstromningsvakten är t.ex. elektrisk till regleringscentralen 11. Fr5n regleringscentralen g5r en informationskoppling 12 till avstangningsventilen 3 och en informationskoppling 13 till utomst5ende system eller som en signal som anger systemets tillst5nd for anvandaren. There are the following main parts in the diagram: inlet water pipe 1 e.g. FROM a municipal water supply network. The municipal water mains and the domestic water mains 14 Jr separated by a valve group 2, which is equipped with water supply and shut-off / contrast valves, a shut-off valve 3 which is controlled to shut off the domestic water mains, e.g. an electric solenoid valve, water tank 4 with variable volume, e.g. membrane expansion vessel, where a first volume 6 filled with nat water and a e.g. with a gaseous substance filled second volume 5, separated e.g. with the help of a membrane in the membrane expansion vessel. The following part of the domestic water line is a volume flow monitor 7, comprising a flow identification means 9 and e.g. adjustment with an adjusting means 8 to optimize the probability, which reacts to the flow. Further after the volume flow monitor is the domestic water line 14. The information connection 10 from the volume flow monitor is e.g. electrically to the control center 11. From the control center, an information connection 12 to the shut-off valve 3 and an information connection 13 to the external system or as a signal indicating the state of the system to the user.

ForegAende exempelfalls funktion är foljande: I en normal anvandningssituation är avstangningsventilen 3, som fordelaktigast är en magnetventil, spanningsfri och stangd. DA forhindras en massiv lacka frAn natet utan att extern energi, t.ex. el, behover tillforas. Normalt tryck p5 inloppsnatet är ungefar 3 — 6 bar och am bruksvattenkretsen 14 är stangd pAverkar samma tryck i hela natet. Enligt forskning orsakas den storsta delen av 4 537 99 vattenskador av smA lackningar, som har pAgAtt lange. I den just beskrivna situationen verkar natets tryck t.ex. 3 — 6 bar p5 vattenkarlets 4 forsta volym 6 och trycket verkar genom organet som separerar volymer, t.ex. membran, p5 den andra volymen 5, som komprimeras. Det komprimerbara mediet i den andra volymen 5 kan vara t.ex. gas, fordelaktiga re luft eller t.ex. kvavgas. Naturligtvis kan det komprimerbara mediet vara nAgot annat an gas, t.ex. flexibelt material eller en konstruktion. Vattenkarlet 4, t.ex. ett membranexpansionskarl, fungerar pa samma sat som en tryckackumulator i hydra uliksystem. Tryck i natet orsakar en okning av vattenvolymen, som beror p5 storleken av trycket och p5 den andra volymens 5 eller den motsvarande mekaniska konstruktionens mottryck. Om det inte finns n5gon lackning i bruksvattenledningen, h5lls trycket oforanderligt och det kommer ingen vatskestromning fr5n vattenkarlets 4 forsta volym 6, i det har exemplet vattenstromning genom volymstromningsvakten 7. Den forsta volymens 6 maximivarde har i testutrustningar som fordelaktigast varit t.ex. 0,5 dl. Naturligtvis kan detta varde variera beroende p5 proportionerna has natet som ska kontrolleras eller beroende p5 hur star lacka som har bestamts att vara skadlig maximal lackning. Vattenlinjens storsta mojliga lackning Jr vasentligen den maximala andringen av vattenkarlets 4 forsta volym 6. Med lackagevakten enligt uppfinningen kan en 15ngvarig lacka i bruksvattennatet 14, som inte lamnar spAr och som är svAr att upptacka med andra metoder, t.ex. en dropplacka, sippring genom fogar, lackning i gamla ror pga. korrosion etc., upptackas p5 foljande satt: Volymstromningsvakten 7 har dimensionerats funktionellt eller har reglerats med hjalp av justeringsorganet 8, som fungerar som regleringsorgan, till ett gransvarde t.ex. 0,8 1/mm. Om stromningen är storre an gransvardet oppnar systemet avstangningsventilen 3 och tinter en normal avvattning. Man anser avvattningen normal, nar den är 50 — 1500 l/h (0,8 — 25 1/mm). Om stromningen är mindre an det satta gransvardet for volymstromningsvakten 7, t.ex. mindre an 0,7 I/min, oppnar systemet inte avstangningsventilen 3. Om lackning fortsatter pa grund av t.ex. en droppande kran borjar vattenkarlets 4 forsta volym — i det har exemplet 0,5 dl — I5ngsamt bli tomt, i exemplet orsakat av expansionskarlets mottryck. Mottrycket bakom exemplets membran, drivtryck, blir samtidigt mindre, allteftersom lackningen fortsatter. Om lackningen kan fortsatta utan tidsbegransning, har det lackt ut max 0,5 dl vatten frAn bruksvattenkrets 14. Aven am man stanger den droppande kranen innan maximal tillaten lackning har skett, har drivtrycket hunnit komma ned vasentligt sA, att nar man tar vatten p5 nytt, kan det kvarvarande drivtrycket inte orsaka stromning, som skulle g5 over volymstromningsvaktens 7 gransvarde, t.ex. 0,7 l/h, och cI5 gr det inte 537 99 information (ON) frAn volymstromningsvakten 7 till regleringscentralen 11 och inte heller oppningsorder till den automatiskt opererande avstangningsventilen 3 genom informationskopplingen 12. Att ta vatten fr5n bruksvattenkretsen 14 Jr inte mojligt innan anvandaren har kvitterat noterad lackning p5 regleringscentralen 11. En stor lacka är mojligt bara i en situation d5 avvattning frAn bruksvattenkretsen 14 p5g5r. Regleringscentralen 11 kontrollerar tiden som avstangningsventilen 3 (t.ex. magnetventil) är oppen. Om ventilen är oavbrutet oppen langre an den satta tidsperioden, t.ex. 5 min, stangs magnetventilen, och vatten slutar att komma. Man kan valja tidsperiodens langd, s5 att det passar vart och ett systems storlek och Jr fordelaktigast, dvs. n5got annat an exemplets 5 min. Om man bestammer att ta vatten kontinuerligt over en langre period an den satta tidsperioden, kan anvandaren valja p5 regleringscentralen 11 att koppla forbi lackagevakten. The function of the preceding example case is as follows: In a normal use situation, the shut-off valve 3, which is most advantageously a solenoid valve, is voltage-free and closed. DA prevents a solid varnish from the wet without external energy, e.g. electricity, needs to be supplied. Normal pressure on the inlet seam is approximately 3 - 6 bar and the working water circuit 14 is closed and the same pressure is applied throughout the net. According to research, the majority of 4,537,999 water damage is caused by small paints, which have paggatt lange. In the situation just described, the pressure of the net, e.g. 3 - 6 bar p5 the first volume 6 of the water vessel 4 and the pressure acts through the means which separates volumes, e.g. membrane, p5 the second volume 5, which is compressed. The compressible medium in the second volume 5 may be e.g. gas, beneficial re air or e.g. kvavgas. Of course, the compressible medium may be something other than gas, e.g. flexible material or a construction. Vattenkarlet 4, e.g. a membrane expansion vessel, works in the same way as a pressure accumulator in hydra different systems. Pressure in the seam causes an increase in the volume of water, which depends on the magnitude of the pressure and on the back pressure of the second volume or the corresponding mechanical structure. If there is no varnishing in the domestic water line, the pressure is kept unchanged and there is no liquid flow from the first volume 6 of the water tank 4, in which the example has water flow through the volume flow switch 7. The maximum value of the first volume 6 has been most advantageous in test equipment e.g. 0.5 dl. Of course, this value can vary depending on the proportions of the lacquer to be checked or depending on the strength of the lacquer which has been determined to be harmful maximum lacquer. The largest possible varnishing of the waterline is essentially the maximum change of the first volume 6 of the water tank 4. With the varnishing guard according to the invention, a 15-year-old varnish in the working water mesh 14, which does not leave traces and is difficult to detect by other methods, e.g. a drip varnish, seepage through joints, varnishing in old pipes due to. corrosion etc., is detected p5 as follows: The volume flow monitor 7 has been dimensionally functional or has been regulated by means of the adjusting means 8, which functions as a regulating means, to a spruce value e.g. 0.8 1 / mm. If the flow is greater than the branch value, the system opens the shut-off valve 3 and thaws a normal dewatering. Dewatering is considered normal when it is 50 - 1500 l / h (0.8 - 25 1 / mm). If the flow is less than the set spruce value for the volume flow monitor 7, e.g. less than 0.7 I / min, the system does not open the shut-off valve 3. If painting continues due to e.g. a dripping tap begins the first volume of the water vessel 4 - in which the example has 0.5 dl - slowly becomes empty, in the example caused by the back pressure of the expansion vessel. At the same time, the back pressure behind the membrane of the example, drive pressure, becomes smaller as the varnishing continues. If the varnishing can continue without a time limit, it has leached out a maximum of 0.5 dl of water from domestic water circuit 14. Even if you turn off the dripping tap before the maximum permitted varnishing has taken place, the driving pressure has dropped significantly so that when you take water again , the residual driving pressure can not cause flow, which would g5 over the spruce value of the volume flow monitor 7, e.g. 0.7 l / h, and cI5 there is no 537 99 information (ON) from the volume flow monitor 7 to the control center 11 nor the opening order to the automatically operating shut-off valve 3 through the information connection 12. To take water from the domestic water circuit 14 Jr is not possible before the user has acknowledged listed lacquering at the control center 11. A large lacquer is only possible in a situation where drainage from the domestic water circuit is 14 p5g5r. The control center 11 controls the time that the shut-off valve 3 (eg solenoid valve) is open. If the valve is open continuously for longer than the set time period, e.g. 5 min, the solenoid valve closes, and water stops coming. You can choose the length of the time period, so that it fits the size of each system and Jr most advantageously, ie. n5got annat an exemplets 5 min. If it is decided to take water continuously over a longer period than the set time period, the user can choose the control center 11 to bypass the paint guard.

I det foljande beskrivs lackagevaktens funktion i en exempelsituation och speciellt funktionen av volymstromningsvakten 7 vid normalt vattenuttag med en mindre stromning med hanvisning till figurer 2 — 4 och figuren 1. I losningen enligt uppfinningen sker identifiering av vatskans stromning 1 direkt baserat p5 stromningen med hjalp av volymstromningsvaktens 7 stromningsidentifieringsorgan 9, utan att leda en del av stromningen till en separat shuntkanal. Volymstromningsvaktens 7 funktion Jr generellt foljande. I borjan d5 man inte avvattnar fr5n bruksvattenkretsen 14 och magnetventilen 3 Jr stangd, Jr stromningsidentifieringsorganet 9 i vilotillst5nd som visat i figur 2 och dess ovre del lutande relativt en lodrat axel 19 vinkelrat p stromningens riktning 1. VilotillstAndet har stabiliserats med ett speciellt arrangemang, foretradesvis med en vilomagnet 22, som paverkar den byre delen av volymstromningsvaktens stam 17. Stromningsidentifieringsorganets 9 nedre del av flexibelt material, t.ex. av gummi, klaff som efterbildar stromningskanalens 29 tvarsnittsform, stanger vasentligen stromningskanalen 29. Klaffen 26 ar vasentligt tunnare i omradet, som Jr nara stromningskanalens 29 sidoyta, an nara dess mitt. For att kunna notera aven en liten och I5ngsam lackning, slapper klaffen 26 och dess stam stromning 1 frAn vattenkarlet 4, t.ex. ett membranexpansionskarl, lAngsamt genom. I exempelsituationen sker forbistromningen mellan klaffens 26 flexibla randomr5des 27 yttersta kant och stromningskanalens 29 inre yta och stammen 17 och stammens 17 stodorgan 20 bildar en parallell kanal for stromning i vasentligen samma riktning som stromningen 1. Forbistromningens storlek kan regleras genom att andra stromningen mellan klaffens kant 27 och stromningskanalen 29 genom att satta stromningsidentifieringsorganet 9 i stromningens 1 riktning i en fordelaktig 6 537 99 position. Regleringen sker genom att vrida stromningsidentifieringsorganets 9 stam 17 omkring dess langdaxel och genom att [Asa stammen 17 och samtidigt klaffen 26 i en onskad position med hjalp av 15sningsorganet 19, fordelaktigast med en lAsningsmutter. Nar det sker en lackning toms vattenkarlet 4 lAngsamt pga. forbistromningen, t.ex. ett membranexpansionskarls ftirsta volym 6 med expansionsvolym, i exemplet 0,5 dl, vilken volym är samma som den maximala lackningen som kan uppsta. I fall av avvattning fungerar volymstromningsvakten 7 pa foljande satt. Volymstromningsvaktens 7 komponenter dimensioneras fordelaktigast sA, att i exempelkonstruktionen nar stromningen är over 0,7 dl/min verkar stromningen 1 p5 klaffen 26 och orsakar genom stammen 17 en motsatt kraft, som är storre an vilotillstAndsmagneten och summan av stromningsidentifieringsorganets 9 egen massas troghetskraft och friktionskraft, d5 stammen 17 lutar omkring axeln 19 och ovre delens motstycke 16, som fordelaktigast är av elektriskt ledande material, aktiverar informationskopplingen 10 till regleringscentralen 11, varifrAn det g5r en oppningsorder till avstangningsventilen 3, som foretradesvis är en magnetventil. Nar man stanger kranen sa att stromningen langsamt minskar kan man med exempelkonstruktionen minska avvattningen till stromningsvardet 0,4 dl/min, d5 stromningsidentifieringsorganet 9 vid gransvardet kommer tillbaka till vilotillstAnd och informationskopplingen for att hAlla avstangningsventilen 3 oppen bryts och denna ventil stanger sig. The following describes the function of the leakage monitor in an example situation and in particular the function of the volume flow monitor 7 in normal water withdrawal with a smaller flow with male reference to Figures 2 - 4 and Figure 1. In the solution according to the invention identification of the liquid flow 1 is based directly on the flow. the flow identification means 9 of the volume flow monitor 7, without directing a part of the flow to a separate shunt channel. The function of the volume flow monitor 7 Jr is generally as follows. Initially, the drain water circuit 14 and the solenoid valve 3 are not drained, the flow identifier 9 is in the rest position as shown in Figure 2 and its upper part is inclined relative to a vertical axis 19 perpendicular to the direction of flow 1. The rest condition has been specially stabilized with a with a resting magnet 22, which affects the upper part of the trunk of the volume flow monitor 17. The lower part of the flow identification means 9 of flexible material, e.g. of rubber, a flap which mimics the cross-sectional shape of the flow channel 29, substantially closes the flow channel 29. The flap 26 is substantially thinner in the area, which is near the side surface of the flow channel 29, closer to its center. In order to be able to note even a small and slow lacquering, the flap 26 and its stem flow 1 flows from the water vessel 4, e.g. a membrane expansion vessel, slowly through. In the exemplary situation, the bypass flow occurs between the outermost edge of the flexible edge area 27 of the flap 26 and the inner surface of the flow channel 29 and the stem 17 and the support members 20 of the stem 17 form a parallel channel for flow in substantially the same direction as the flow 1. The bypass flow size can be controlled 27 and the flow channel 29 by placing the flow identification means 9 in the direction of the flow 1 in an advantageous position. The adjustment takes place by rotating the stem 17 of the flow identification means 9 about its longitudinal axis and by [Asa the stem 17 and at the same time the flap 26 in a desired position with the aid of the sealing means 19, most advantageously with a locking nut. When a varnishing takes place, the water vessel is emptied 4 Slowly due to the bypass flow, e.g. a membrane expansion vessel's first volume 6 with expansion volume, in the example 0.5 dl, which volume is the same as the maximum varnish that can occur. In case of dewatering, the volume flow monitor 7 operates in the following way. The components of the volume flow monitor 7 are most advantageously dimensioned such that in the exemplary construction when the flow is over 0.7 dl / min the flow 1 p5 the flap 26 acts and causes through the stem 17 an opposite force which is greater than the resting magnet and the sum of the flow identification means 9 The stem 17 is inclined about the shaft 19 and the upper part 16 of the upper part, which is most advantageously made of electrically conductive material, activates the information connection 10 to the control center 11, from which there is an opening order to the shut-off valve 3, which is preferably a solenoid valve. When you close the tap so that the flow slowly decreases, you can use the example design to reduce the drainage to the flow value 0.4 dl / min, d5 the flow identification means 9 at the spruce guard returns to the rest condition and the information connection to keep all the shut-off valve 3 open and this valve closes.

Med stora stromningar nar man avvattnar, fungerar volymstromningsvaktens 7 enligt foljande. Nar stromningsidentifieringsorganet 9 har satts i sin ovan beskrivna position for att h51Ia avstangningsventilen 3 oppen, orsakar stromning 1, att klaffen bojs p5 sitt flexibla omrAde speciellt i stammens 17 och klaffens 26 modulomrade 25 fordelaktigast i riktning av stromning 1, da stromningskanalen 29 oppnar sig vasentligt till sin maximala tvarsnittsareal. Den flexibla klaffen 26 staller sig p5 grund av stromningens 1 pAverkan vasentligt anpassat till formen av stromningskanalens innersida. With large flows when dewatering, the volume flow monitor 7 operates as follows. When the flow identification means 9 has been set in its above-described position to keep the shut-off valve 3 open, flow 1 causes the flap to bend in its flexible area, especially in the modular area 25 of the stem 17 and the flap 26, in the direction of flow 1, as the flow channel 29 opens sharply. to its maximum cross-sectional area. Due to the influence of the flow 1, the flexible flap 26 is substantially adapted to the shape of the inside of the flow channel.

Aven om man har beskrivit uppfinningen i foregAende beskrivning med hanvisning till bifogade ritningar, är det klart, att uppfinningen inte är begransad till beskrivna utforingsexempel, men den kan varieras p5 mAnga satt enligt i givna patentkrav forekommande sardrag. 7 Although the invention has been described in the foregoing description with reference to the accompanying drawings, it is clear that the invention is not limited to the embodiments described, but it may be varied in many ways according to the features of the claims. 7

Claims (10)

537 99 Patentkrav 1. Metod for att identifiera och begransa en lackning i rorsystem speciellt i ett vattensystem i en fastighet, vilket vattensystem omfattar: 1. en tilloppsvattenledning (1), 2. en bruksvattenkrets (14), 3. en med vattenmatare och avstangningsventil utrustad ventilgrupp (2), som separerar tilloppsvattenledningen (1) och bruksvattenkretsen (14) och d. en avstangningsventil (3) anordnad att stanga bruksvattenkretsen (14), kannetecknad darav, att metoden omfattar foljande steg: nar en volymstromningsvakt (7) upptacker att ett gransvarde for stromningen overskrids, skickas ett meddelande am overskridandet till en regleringscentral (11) via en forsta informationskoppling (10), varpa regleringscentralen styr avstangningsventilen (3) sa att den oppnas, och ovan namnda metoden fungerar i en normal situation pa foljande sat: I. efter att vatten tappats i bruksvattenkretsen (14) är bruksvattenkretsen (14) och avstangningsventilen (3) stangda och en forsta volym (6) i ett expansionskarl, vilken är avskild Iran en andra volym (5) av ett membran i expansionskarlet (4), har blivit full av vatten, som har samma tryck som tilloppsvattenledningens (1) vatten och membranet paverkas av ett tryck, som är samma som var i tilloppsvattenledningen (1) under vattenuttagandet, varvid namnda membran forskjuts sa mycket att det bildas samma tryck i den forsta volymen (6) som i den andra volymen (5), ii.nar bruksvattenkretsen (14) oppnas for att ta vatten, sjunker bruksvattenkretsens och forsta volymens (6) tryck och expansionskarlets (4) membran trycker pa grund av tryckskillnaden vatten i forsta volymen (6) genom volymstromvakten (7) sa att det satta gransvardet p5 volymstromningsvakten overskrids, varpa information am overskridandet skickas genom den forsta informationskoppling (10) till regleringscentralen (11) och regleringscentralen sander oppningsorder till avstangningsventilen (3) genom en andra informationskoppling (12), sa att avstangningsventilen (3) oppnar sig, 8 537 99 iii.nar brukvattenkretsen (14) stangs sjunker stromningen i volymstromningsvakten (7) under gransvardet och systemet informerar om detta genom den forsta informationskopplingen (10) till regleringscentralen (11), varp5 regleringscentralen stanger avstangningsventilen (3) genom den andra informationskopplingen (12), och d5 den forsta volymen (6) forblir full med vatten, som har samma tryck som vattnet i tilloppsvattenledningen (1); och att den namnda metoden funktionerar p5 foljande satt i en lackningssituation: 4. nar det finns en lacka i en stangd bruksvattenkrets (14) och dess tryck minskar, minskar ocks5 trycket p5 vattnet i forsta volymen (6) och tryckskillnaden som uppst5r mellan den forsta (6) och den andra volymen (5) orsakar det, att membranet ror sig i riktning mot den forsta volymen (6) och d5 vatten inom den forsta volymen (6) g5r genom volymstromningsvakten (7) till bruksvattenkretsen (14), d5 sjunker ocks5 trycket i den andra volymen (5), 5. nar bruksvattenkretsen (14) oppnas, är den andra volymens (5) sankta inre tryck otillrackligt for att orsaka stromning fr5n den forsta volymen (6) till volymstromningsvakten (7), varvid systemet h5lIer avstangningsventilen (3) stangd. 2. Metod enligt patentkrav 1 kannetecknad darav, att en tredje informationskoppling (13) installeras i vattenkretsen, for overforing av information frAn regleringscentralen (11) till yttre system eller en signal am systemets tillstAnd till anvandaren. 3. Metod enligt patentkrav 1 eller 2 kannetecknad darav, att ett stromningsidentifieringsorgan (9) identifierar stromningen i volymstromningsvakten (7), vilken stromning är mindre an det satta antagna vardet och information am detta skickas via den forsta informationskopplingen (10) till regleringscentralen (11), som tolkar, att det är en lackning. 4. Metod enligt patentkrav 2 kannetecknad darav, att information am stromningens variation kommuniceras till ett externt system eller som ett meddelande till anvandaren am systemets tillst5nd, via informationskopplingen (13). 9 537 99 5. Metod enligt nagot av patentkrav 1 — 4 kannetecknad darav, att maximal volymvariation i expansionskarlet forsta volym (6) är 0,5 dl, varvid den storsta mojliga lackningen i bruksvattenkretsen (14), nar den är stangd, är lika mycket, som den forsta volymen. 6. Metod enligt n5got av patentkrav 1 — kannetecknad darav, att avstangningsventilen (3) är spanningsfri, nar den är stangd. 7. Metod enligt n5got av patentkraven 1— 6, vidare omfattande steget att ett gransvarde inmatas till volymstromningsvakten (7) med hjalp av ett regleringsorgan (8) i volymstromningsvakten. 8. Utrustning for att utfora metoden enligt n5got av patentkraven 1 — 7 for att identifiera lackning i rorsystem och for att begransa lackningen speciellt i vattensystem i en fastighet, vilket vattensystem omfattar:A method for identifying and delimiting a paintwork in a rudder system, especially in a water system in a property, which water system comprises: 1. a supply water line (1), 2. a domestic water circuit (14), 3. one with water supply and shut-off valve equipped valve group (2), which separates the supply water line (1) and the domestic water circuit (14) and d. a shut-off valve (3) arranged to shut off the domestic water circuit (14), characterized in that the method comprises the following steps: when a volume flow monitor (7) detects that a control value for the flow is exceeded, a message exceeding the control is sent to a control center (11) via a first information connection (10), whereupon the control center controls the shut-off valve (3) so that it opens, and the above method operates in a normal situation as follows: I. after water has been drained into the domestic water circuit (14), the domestic water circuit (14) and the shut-off valve (3) are closed and a first volume (6) in an expansion which is separated from Iran a second volume (5) of a membrane in the expansion vessel (4) has become full of water having the same pressure as the water of the inlet water line (1) and the membrane is affected by a pressure which is the same as in the inlet water line (1) during the water withdrawal, said membrane being displaced so much that the same pressure is formed in the first volume (6) as in the second volume (5), ii.when the domestic water circuit (14) is opened to take water, the domestic water circuit and the pressure of the first volume (6) and the diaphragm of the expansion vessel (4) push due to the pressure difference water in the first volume (6) through the volume flow monitor (7) so that the set threshold value of the volume flow monitor is exceeded, to the control center (11) and the control center sends the opening order to the shut-off valve (3) through a second information connection (12), so that the shut-off valve (3) opens, 8 53 When the service water circuit (14) is closed, the flow in the volume flow monitor (7) drops below the threshold and the system informs about this through the first information connection (10) to the control center (11), where the control center closes the shut-off valve (3) through the second information connection (12). ), and d5 the first volume (6) remains full of water, which has the same pressure as the water in the supply water line (1); and that the said method operates as follows in a painting situation: 4. when there is a paint in a closed domestic water circuit (14) and its pressure decreases, the pressure on the water in the first volume (6) and the pressure difference which arises between the first (6) and the second volume (5) causes the diaphragm to move in the direction of the first volume (6) and d5 water within the first volume (6) passes through the volume flow switch (7) to the service water circuit (14), d5 sinks also the pressure in the second volume (5), 5. when the domestic water circuit (14) is opened, the gentle internal pressure of the second volume (5) is insufficient to cause flow from the first volume (6) to the volume flow switch (7), the system holding shut-off valve (3) closed. Method according to claim 1, characterized in that a third information connection (13) is installed in the water circuit, for transmitting information from the control center (11) to external systems or a signal in the state of the system to the user. Method according to claim 1 or 2, characterized in that a flow identification means (9) identifies the flow in the volume flow monitor (7), which flow is less than the set assumed value and information in this is sent via the first information connection (10) to the control center (11). ), which interprets that it is a varnish. Method according to claim 2, characterized in that information in the variation of the flow is communicated to an external system or as a message to the user in the state of the system, via the information connection (13). 9 537 99 5. A method according to any one of claims 1 to 4, characterized in that the maximum volume variation in the expansion vessel first volume (6) is 0.5 dl, the largest possible varnishing in the domestic water circuit (14), when closed, being equal much, as the first volume. Method according to one of Claims 1 - characterized in that the shut-off valve (3) is voltage-free when it is closed. A method according to any one of claims 1 to 6, further comprising the step of inputting a spruce response to the volume flow monitor (7) by means of a control means (8) in the volume flow monitor. Equipment for carrying out the method according to any one of claims 1 - 7 for identifying lacquering in pipe systems and for limiting the lacquering especially in water systems in a property, which water system comprises: 1. tilloppsvattenledning (1),1. supply water line (1), 2. bruksvattenkrets (14),2. domestic water circuit (14), 3. en ventilgrupp (2), som bestar av vattenmatare och avstangningsventil, som separerar tilloppsvattenledningen (1) och bruksvattenkretsen (14), ochA valve group (2), consisting of a water supply and a shut-off valve, which separates the supply water line (1) and the domestic water circuit (14), and 4. en styrbar avstangningsventil (3), for att stanga bruksvattenkretsen, kannetecknad darav, att den namnda utrustningen omfattar:4. a controllable shut-off valve (3), for closing the domestic water circuit, characterized in that said equipment comprises: 5. ett expansionskarl (4), anordnat i stromningsriktningen efter avstangningsventilen (3) och innefattande en forsta volym (6) och en andra volym (5) och ett elastiskt, tatt membran som separerar den forsta (6) och den andra volymen (5) fr5n varandra, och ett flexibelt material, som fyller den andra volymen (5),An expansion vessel (4), arranged in the flow direction after the shut-off valve (3) and comprising a first volume (6) and a second volume (5) and an elastic, taken membrane separating the first (6) and the second volume (5). ) from each other, and a flexible material, which fills the second volume (5), 6. en volymstromningsvakt (7), anordnad efter expansionskarlet (4) i stromningsriktningen, och omfattande ett stromningsidentifieringsorgan (9) och ett justeringsorgan (8), som fungerar som regleringsorgan for att satta ett gransvarde for stromningen,A volume flow monitor (7), arranged after the expansion vessel (4) in the flow direction, and comprising a flow identification means (9) and an adjusting means (8), which act as regulating means for setting a threshold value for the flow, 7. en regleringscentral (11) for att reglera avstangningsventilens (3) funktion,7. a control center (11) for controlling the function of the shut-off valve (3), 8. en forsta informationskoppling (10) for overforing av information fran volymstromningsvakten (7) till regleringscentralen (11), 537 99 i.en andra informationskoppling (12) for overforing av information frAn regleringscentralen (11) till avstangningsventilen (3).8. a first information connection (10) for transmitting information from the volume flow monitor (7) to the control center (11), 537 99 i. A second information connection (12) for transmitting information from the control center (11) to the shut-off valve (3). 9. Utrustning enligt patentkrav 8 kannetecknad darav, att amnet som fyller den andra volymen (5) är gas under tryck eller ett flexibelt material i solitt tillstAnd, foretradesvis luft eller kvave.Equipment according to claim 8, characterized in that the substance filling the second volume (5) is gas under pressure or a flexible material in a solid state, preferably air or nitrogen. 10. Utrustning enligt n5got av patentkraven 8 — 9, dar regleringscentralen (11) är anordnad att styra avstangningsventilen enligt foljande, i en situation utan lackage: nar regleringscentralen mottar information om att det satta gransvardet overskrids, skickas information om overskridandet genom den forsta informationskopplingen (10) till regleringscentralen (11) och regleringscentralen (11) sander oppningsorder till avstangningsventilen (3) genom en andra informationskoppling (12) sa att avstangningsventilen oppnar sig. 11 537 99 1/4 13Equipment according to any one of claims 8 - 9, wherein the control center (11) is arranged to control the shut-off valve as follows, in a situation without leakage: when the control center receives information that the set spruce value is exceeded, information about the exceedance is sent through the first information connection ( 10) to the control center (11) and the control center (11) send opening orders to the shut-off valve (3) through a second information connection (12) so that the shut-off valve opens. 11 537 99 1/4 13
SE1450951A 2013-08-16 2014-08-15 Method and equipment for identifying and limiting leakage in pipe systems SE537995C2 (en)

Applications Claiming Priority (1)

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FI20130232A FI125291B (en) 2013-08-16 2013-08-16 Method and apparatus for detecting pipe leakage and detecting leakage

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FI (1) FI125291B (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628400A (en) * 1979-08-14 1981-03-19 Shinryo Air Conditioning Co Ltd Stop device for abnormal water leakage in piping system
DE3907209C1 (en) * 1989-01-18 1990-03-01 Danfoss A/S, Nordborg Device for monitoring a fluid piping system for leaks
JPH05133650A (en) * 1991-11-14 1993-05-28 Takenaka Komuten Co Ltd Leakage liquid detector for air conditioning equipment

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NO342335B1 (en) 2018-05-07

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