Claims (8)
1. Postupak za sekcijsko čišćenje, uz istodobnu dezinfekciju, ukopanih cjevovoda u mreži javnog cjevovoda pitke vode, pri čemu se dio zatvoren ventilom ili dio koji je odvojen privremeno, u otvorenom prokopu, od ostatka pitke vode, podvrgava u prvom koraku, putem mobilnog aparata, djelovanju tekućine za čišćenje koja se upumpava u sustav i dozira sa komprimiranim zrakom i smjesom niske koncentracije kemijskih dodataka za otapanje inkrustacija i u svrhu dezinfekcije, i pri svakom slijedećem prolazu tekućine za čišćenje, navedena tekućina za čišćenje je pročišćena prolaskom kroz višestruke komore za taloženje (1), i zato, kada se otopljene čvrste cestice slegnu, potrebno je dodati samo malu količinu svježe vode u tekućinu za čišćenje da se postigne potrebna razina protoka tekućine za čišćenje, te prati napredak u postupku čišćenja, između ostalog, mjerenjem zamućenosti; u drugom koraku - nakon završetka kruženja tekućine za čišćenje – ona ostaje određeno vrijeme u cjevovodu radi čišćenja, pri čemu se tijekom faze mirovanja otapaju konačni ostaci / naslage; pri čemu se u trećem koraku - nakon završetka čišćenja u skladu s prvim i drugim korakom - kemijski aditivi u sredstvu za čišćenje neutraliziraju a potonji se propušta u drenažni jarak; u četvrtom koraku, cista cijev za pitku vodu (5) podvrgnuta je konačnom ispiranju sa svježom vodom; i u petom koraku, otopina sa inhibitorom nanosi se na unutarnju stijenku cijevi, kako bi se zaštitila od korozije.1. The procedure for sectional cleaning, with simultaneous disinfection, of buried pipelines in the public drinking water pipeline network, whereby the part closed by a valve or the part that is temporarily separated, in an open trench, from the rest of the drinking water, is subjected in the first step, by means of a mobile device , by the action of the cleaning fluid that is pumped into the system and dosed with compressed air and a mixture of low concentration chemical additives for dissolving incrustations and for the purpose of disinfection, and at each subsequent passage of the cleaning fluid, the specified cleaning fluid is purified by passing through multiple deposition chambers ( 1), and therefore, when the dissolved solid particles have settled, it is necessary to add only a small amount of fresh water to the cleaning fluid to achieve the required level of flow of the cleaning fluid, and monitor the progress of the cleaning process by, among other things, measuring the turbidity; in the second step - after the end of the circulation of the cleaning liquid - it remains for a certain time in the pipeline for cleaning, during which the final residues / deposits dissolve during the resting phase; whereby in the third step - after the completion of cleaning in accordance with the first and second steps - the chemical additives in the cleaning agent are neutralized and the latter is passed into the drainage ditch; in the fourth step, the clean drinking water pipe (5) is subjected to a final flush with fresh water; and in the fifth step, a solution with an inhibitor is applied to the inner wall of the pipe, to protect it from corrosion.
2. Postupak za sekcijsko čišćenje prema zahtjevu 1, naznačen time, da se doziranje kemijskih ili oksidativnih aditiva tijekom čišćenja u skladu s koracima jedan i dva kontinuirano smanjuje ili zbog smanjenja zamućenosti ili zbog porasta volumetrijskog protoka.2. The method for sectional cleaning according to claim 1, characterized in that the dosage of chemical or oxidative additives during cleaning in accordance with steps one and two is continuously reduced either due to a decrease in turbidity or due to an increase in volumetric flow.
3. Postupak za sekcijsko čišćenje prema patentnim zahtjevima 1 i 2, naznačen time, da se kao kemijski dodatak i kao oksidacijski aditiv koriste anorganska kiselina niske koncentracije s jedne strane i vodikov peroksid sa druge.3. The method for section cleaning according to patent claims 1 and 2, characterized by the fact that a low-concentration inorganic acid and hydrogen peroxide are used as a chemical additive and as an oxidizing additive on the one hand.
4. Postupak za sekcijsko čišćenje prema zahtjevima 1 i 3, naznačen time, da smjesa anorganskih kiselina niske koncentracije čini 5% do 25%, u odnosu na ukupni volumen količine vode za piće koji se nalazi u cjevovodu koji se čisti.4. The procedure for sectional cleaning according to claims 1 and 3, characterized by the fact that the mixture of low-concentration inorganic acids makes up 5% to 25%, in relation to the total volume of the amount of drinking water in the pipeline being cleaned.
5. Postupak za sekcijsko čišćenje prema bilo kojem od prethodnih zahtjeva, naznačen time, da se HCl, H3PO4 ili H2SO4 poželjno koriste kao anorganske kiseline, naznačen time, pri čemu je njihova koncentracija, kada su prisutne u smjesi, u rasponu od 5% do 20%.5. A method for sectional cleaning according to any of the preceding claims, characterized in that HCl, H3PO4 or H2SO4 are preferably used as inorganic acids, characterized in that their concentration, when present in the mixture, is in the range of 5% to 20%.
6. Postupak za sekcijsko čišćenje prema zahtjevu 1, naznačen time, da je fosfat otopljen u inhibitorskoj otopini.6. The method for sectional cleaning according to claim 1, characterized in that the phosphate is dissolved in the inhibitor solution.
7. Postrojenje za sekcijsko čišćenje uz istodobnu dezinfekciju, ukopanih cjevovoda mreže javnog cjevovoda pitke vode, sadrži višestruke komore za taloženje (1) i jedinicu za doziranje (3) kemijskih aditiva i oksidacijskog sredstva, a postrojenje služi za obavljanje postupka u skladu s patentnim zahtjevom 1, naznačeno time, da navedeni postav višestrukih komora za taloženje (1) sadrži tekućinu za čišćenje/dezinfekciju ili tekućinu za ispiranje koja je u operativnoj vezi s hidrantom (8) preko ulaza svježe vode i, na posljednjem taložnom spremniku (1), obuhvaća ispust (6) za pročišćenu vodu u drenažni jarak, u kojem su kružna pumpa (2) za kontinuirani tok, jedinica za doziranje (3) za kemijske i oksidativne aditive i otopinu s inhibitorom, te ulaz za zrak (4) za uvođenje komprimiranog zraka u dovod i, preko hidranta (7), u cijev za pitku vodu (5) koja se tretira, spojeni u seriju nizvodno od taložnica (1).7. The plant for sectional cleaning with simultaneous disinfection of buried pipelines of the public drinking water pipeline network, contains multiple chambers for precipitation (1) and a unit for dosing (3) chemical additives and oxidizing agent, and the plant is used to perform the procedure in accordance with the patent claim 1, characterized in that said set of multiple settling chambers (1) contains a cleaning/disinfecting liquid or rinsing liquid which is in operative connection with the hydrant (8) via the fresh water inlet and, at the last settling tank (1), comprises outlet (6) for purified water into the drainage ditch, in which there are a circular pump (2) for continuous flow, a dosing unit (3) for chemical and oxidative additives and a solution with an inhibitor, and an air inlet (4) for introducing compressed air into the supply and, via the hydrant (7), into the potable water pipe (5) which is being treated, connected in series downstream of the clarifiers (1).
8. Postrojenje za sekcijsko čišćenje prema zahtjevu 7, naznačeno time, da je uređeno za mobilnu uporabu na motornom vozilu, kada je spojeno između dvaju hidranata (7, 8) koji su postavljeni na definiranoj udaljenosti jedan od drugog ili na dio cjevovoda u otvorenom jarku čiji krajevi su opremljeni zapornicama i odgovarajućim ventilima.8. Sectional cleaning plant according to claim 7, characterized in that it is arranged for mobile use on a motor vehicle, when it is connected between two hydrants (7, 8) that are placed at a defined distance from each other or on a part of the pipeline in an open ditch the ends of which are equipped with shutters and appropriate valves.