TEHNOLOGIJA PRIPREME NAPOJNE VODE U ENERGETICI

• Main Author: Sigur, Josip
• Other Authors: Aračić, Stjepan
• Format: Bachelor Thesis
• Language: Croatian
• Published: Sveučilište Josipa Jurja Strossmayera u Osijeku. Strojarski fakultet u Slavonskom Brodu. 2020
• Subjects: priprema vode; napojna voda; parni kotao; water preparation; feed water; boiler; TEHNIČKE ZNANOSTI. Strojarstvo; TECHNICAL SCIENCES. Mechanical Engineering; Carbonic acid
• Online Access: https://zir.nsk.hr/islandora/object/sfsb:1027; https://urn.nsk.hr/urn:nbn:hr:153:114613; https://repozitorij.unios.hr/islandora/object/sfsb:1027; https://repozitorij.unios.hr/islandora/object/sfsb:1027/datastream/PDF

U uvodnom dijelu opisana su najvažnija svojstva i tehničke značajke prirodnih voda. Predstavljene su važnosti tehničkih značajka koje treba uskladiti kako bi voda bila upotrebljiva u termoenergetskim postrojenjima. Objašnjene su opasnosti koje nastaju u dodiru kotlovskog materijala s vodom, te važnost utjecanja agresivnog kisika i ugljične kiseline. Opisani su svi tehnološki procesi pripreme napojne vode, od izdvajanja koloidnih i grubih nečistoće, postupaka omekšavanja, otplinjavanja i kondicioniranja vode. Za svaki postupak opisane su njegove osnove te njihove podjele na različite metode. Napojnu vodu treba pripremiti prema traženim normama, čije zadovoljavanje provjeravamo nizom kemijskih analiza. Na kraju su opisani i ekološki problemi koji se javljaju pri pripremi vode, te načini njihova rješavanja. In introductory part, there are described the most important properties and technical characteristics of natural water. The importance of adjustment of technical characteristics is presented in order to make water usable in thermal power plants. The dangers that appears in the contact of boiler material with water are explained, as well as the importance of the influence of aggressive oxygen and carbonic acid. All technological processes of feed water preparation are described, from the extraction of colloidal and coarse impurities, softening, degassing and water conditioning procedures. For each procedure, there is description of its basics and their division into different methods. Feed water must be prepared according to required norms, which are tested with a series of chemical analyzes. Finally, the environmental problems that occur in water preparation are described, with ways to solve them.