{"id":188,"date":"2023-02-27T14:48:59","date_gmt":"2023-02-27T14:48:59","guid":{"rendered":"http:\/\/weiss.graphie.dk\/?page_id=188"},"modified":"2024-10-24T10:53:13","modified_gmt":"2024-10-24T10:53:13","slug":"roeggas-vasker","status":"publish","type":"page","link":"https:\/\/weiss2energy.eu\/da\/teknologi\/roeggas-vasker\/","title":{"rendered":"R\u00f8ggas vasker"},"content":{"rendered":"

[vc_row row_height_percent=”0″ override_padding=”yes” h_padding=”2″ top_padding=”3″ bottom_padding=”3″ overlay_alpha=”50″ gutter_size=”3″ column_width_percent=”100″ shift_y=”0″ z_index=”0″ uncode_shortcode_id=”209297″][vc_column width=”2\/3″][vc_custom_heading text_color=”color-547383″ text_font=”font-162746″ uncode_shortcode_id=”102763″ text_color_type=”uncode-palette”]R\u00d8GGAS VASKER[\/vc_custom_heading][vc_column_text text_color=”color-547383″ uncode_shortcode_id=”100206″ text_color_type=”uncode-palette”]R\u00f8ggas vaskerens form\u00e5l er at bruge varmen\/energien i r\u00f8ggassen til opvarmning af returvandet til kedlen, hvilket giver en bedre virkningsgrad p\u00e5 kedelanl\u00e6gget.<\/span><\/p>\n

Quinch-r\u00f8rets form\u00e5l er at s\u00e6nke temperaturen p\u00e5 r\u00f8ggassen. Temperaturen p\u00e5 r\u00f8ggassen skal v\u00e6re tilstr\u00e6kkelig lav s\u00e5ledes at r\u00f8ggas fra kedlen kondenseres. Vasket\u00e5rnet kan tage skade, hvis r\u00f8ggastemperaturen er for h\u00f8j. I toppen af quinch-r\u00f8ret sidder kondenseringsdyser som k\u00f8ler r\u00f8ggassen. Der er ligeledes ogs\u00e5 n\u00f8dk\u00f8lingsdyser, som \u00e5bnes hvis kondenseringsdyser ikke k\u00f8ler tilstr\u00e6kkeligt. N\u00f8dk\u00f8lingsdyserne \u00e5bner ogs\u00e5 hvis vandniveauet falder i vasket\u00e5rnet. I bunden af quinch-r\u00f8ret sidder to temperaturtransmittere som kontroller temperaturen til vasket\u00e5rnet.<\/span><\/p>\n

Fra quinch-r\u00f8ret bliver r\u00f8ggassen f\u00f8rt op igennem vasket\u00e5rnet. Vasket\u00e5rnet indeholder telretter (sm\u00e5 plastik kugler), kondenseringsdyser som sprayer p\u00e5 r\u00f8ggassen, hvilket k\u00f8ler og renser r\u00f8ggassen. \u00d8verste dyse i vasket\u00e5rn er en stor dyse. Nederste dysering er sm\u00e5 dyser. Telretterne er lavet af plastik, og kan ikke t\u00e5le en h\u00f8j temperatur. Efter dyserne passerer r\u00f8ggassen et dr\u00e5befang, som fjerner medrevne vanddr\u00e5ber. P\u00e5 siden af vasket\u00e5rnet sidder vandstandsglasset, hvor vandstanden kan kontrolleres. Niveauet i vasket\u00e5rnet, kontrolleres ogs\u00e5 af en niveautransmitter. N\u00e5r niveauet stiger, \u00e5bnes en ventil til aftap af kondensat. Kondensatet kan ledes til kloak, sp\u00e5nfilter eller b\u00e5ndfilter.<\/span><\/p>\n

F\u00f8r vaskepumpen findes et grovfilter, Grovfilteret holder p\u00e5 store partikler, som ellers ville stoppe dyserne i quinch-r\u00f8ret og vasket\u00e5rnet. Vaskepumpen skal holde trykket p\u00e5 dyserne, s\u00e5ledes at r\u00f8ggasvaskningen fungerer mest optimal. Vaskepumpen er frekvensstyret, og varierer i hastighed. Hastigheden udregnes fra PLC\/SRO styringen. R\u00f8ggastemperaturen skal n\u00e5r den forlader vasket\u00e5rnet v\u00e6re lav, for at f\u00e5 bedste virkningsgrad p\u00e5 kedelanl\u00e6gget.<\/span><\/p>\n

Vaskevandet indeholder r\u00f8ggaspartikler, og har en pH v\u00e6rdi p\u00e5 ca. 3-4. For at kompensere for dette tils\u00e6ttes NaOH (lud). Vaskevandet skal have en pH v\u00e6rdi p\u00e5 7. Derefter kan det ledes videre som kondensat til kloak, sp\u00e5nfilter eller b\u00e5ndfilter.<\/span><\/p>\n

Varmeveksleren veksler vaskevand og returvand til kedlen. Der findes tryktransmittere p\u00e5 begge sider af varmeveksleren. Tryktransmitteren bruges til at tilse om trykket har \u00e6ndret sig. Hvis differenstrykket imellem frem og retur p\u00e5 vaskevandet stiger, er der behov for returskyldning af varmeveksleren. I varmeveksleren kan partikler fra vaskevandet s\u00e6tte sig, og varmeoverf\u00f8relsen bliver forringet pga. af bel\u00e6gninger.<\/span>[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_single_image media=”121″ media_width_percent=”100″ uncode_shortcode_id=”130276″][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

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