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    Wasser und Wasserdampf im Anlagenbau

    Wasser und Wasserdampf im Anlagenbau

    Autoren:

    Verlag:
    Vogel Business Media  Weitere Titel dieses Verlages anzeigen

    Auflage: 2. Auflage
    Erschienen: Dezember 2010
    Seiten: 142
    Sprache: Deutsch
    Preis: 25.80 €
    Illustration: Zahlr. Abb. u. Tab.
    Maße: 226x160x13
    Einband: Taschenbuch
    Reihe: Kamprath-Reihe
    ISBN: 9783834331946

    Inhaltsverzeichnis

    Vorwort5
    1Rohwasser9
    2Anwendungsgrenzen von Rohwasser11
    2.1Ablagerungen11
    2.1.1Kalkablagerungen (Steinbildung)11
    2.2Korrosion11
    2.2.1Gleichmäßige Flächenkorrosion12
    2.2.2Ungleichmäßige Flächenkorrosion12
    2.2.3Korrosion an Wandungen von freien Wasseroberflächen12
    2.2.4Korrosion bei einmaliger Wasserfüllung13
    2.3Gasbildung13
    3Wasseraufbereitung15
    3.1Begriffe zur Beurteilung von Wasser15
    3.1.1Allgemeine Einheiten15
    3.1.2pH-Wert17
    3.1.3Härte19
    3.1.4Kohlensäure20
    3.1.5Säure-und Basekapazität20
    3.1.6Elektrische Leitfähigkeit21
    3.1.7Wasseranalyse21
    3.1.7.1Beurteilung einzelner Analysen werte22
    3.2Aufbereitungssysteme23
    3.2.1Ionenaustauscher24
    3.2.2Umkehrosmose25
    3.2.3Entgasung25
    3.2.4Absalzung27
    3.3Grenzwerte für die Wasserbeschaffenheit27
    3.3.1Kühlwasser27
    3.3.2Wasser für Kesselanlagen29
    4Stoffwerte von Wasser und Wasserdampf33
    4.1Siedeverlauf34
    4.2Dichte34
    4.3Wahre spezifische Wärmekapazität35
    4.4Wärmeleitfähigkeit35
    4.5Dynamische Viskosität39
    4.6Enthalpie-Diagramme39
    4.7Entropie-Diagramme39
    4.8Wasser- und Wasserdampftabellen48
    5Strömung und Wärmeübertragung53
    5.1Strömungsgeschwindigkeit53
    5.2Strömungskennzahlen53
    5.3Druckverluste58
    5.4Wärmeübergangskoeffizienten58
    5.4.1Durchströmte Rohre58
    5.4.2Quer angeströmte Rohre58
    5.4.3Naturkonvektion an Platten und Rohren62
    5.4.4Verdampfung von Wasser62
    5.4.5Kondensation von Wasserdampf62
    6Wasseranlagen65
    6.1Wasseranlagen unter 0°C65
    6.1.1Wasser-Salz-Lösungen (Solen)65
    6.1.2Wasser-Glykol-Lösungen66
    6.2Kühlwasseranlagen69
    6.3Warmwasseranlagen77
    6.4Heißwasseranlagen78
    7Wasserdampfanlagen81
    7.1Erzeugung von Wasserdampf81
    7.1.1Rauchrohrkessel83
    7.1.2Wasserrohrkessel83
    7.1.3Naturumlaufkessel83
    7.1.4Zwangumlaufkessel85
    7.1.5Zwangdurchlaufkessel85
    7.1.6Indirekt beheizte Dampferzeuger85
    7.1.7Ausdampf trommel86
    7.2Dampfspeicher86
    7.3Dampftrockner89
    7.4Dampfleitungen90
    7.4.1Wärmeverlustberechnung90
    7.4.2Temperaturabfall im Rohr91
    7.4.3Kondensatanfall im Rohr92
    7.4.4Kondensatvermeidung während des Betriebs94
    7.5Drosselung von Wasserdampf97
    7.6Dampfkühlung100
    7.7Inertgase im Dampf100
    8Kondensatsystem103
    8.1Allgemeines103
    8.2Ableitsysteme106
    8.2.1Kondensatabführung106
    8.3Kondensatabieiter107
    8.3.1Bauarten von Kondensatableitern108
    8.3.1.1Schwimmerkondensatabieiter108
    8.3.1.2Thermische Abieiter109
    8.3.1.3Thermodynamische Abieiter110
    8.4Sammelsystem und Rückführung111
    8.5Verlegung von Kondensatleitungen117
    9Dampf- und Kondensatsysteme für verschiedene Einsatzfälle127
    9.1Entwässerung von Dampfleitungen127
    9.2Kondensatableitung an Lufterhitzern127
    9.3 Kondensatableitung aus dampfbeheizten Wärmeaustauschern
    mit Produkttemperaturen <100 °C130
    9.4Dampfseitige Regelung von Wärmeaustauschern132
    9.5Kondensatanstauregelung132
    9.6Korrosionsschäden an Wärmeaustauschern135
    9.7Vermeiden von Frostschäden in Wasserdampf- und Kondensatsystemen136
    Formelzeichen137
    Literaturverzeichnis139
    Stichwortverzeichnis141

    Register

    A
    Ablagerungen 11
    Abieiter -, thermische 109
    -, thermodynamische 110
    Ableitsysteme 106
    Absalzung 27
    Ammonium-Stickstoff (NH+4, N) 23
    Äquivalent 15
    Äquivalentkonzentration c 17
    Aufbereitungssysteme 23
    Ausdampftrommel 86
    B
    Basekapazität eines Wassers 20
    Brackwasser 9
    Brunnenwasser 9
    Chlorid (C1-) 22
    D
    Dampferzeuger, indirekt beheizte 85
    Dampfkondensat 31
    Dampfkühler mittels Einspritzwasser 100
    Dampfkühlung 100
    Dampfleitungen 90
    -, Entwässerung 127
    Dampfspeicher 86
    Dampftrockner 89
    Dampfübertemperatur am Anfang der Leitung, er- forderliche 94
    Dichte 34
    Dichteverhältnis von Wasser und Wasserdampf 35
    Drosselung von Wasserdampf 97
    Druckdiktierpumpen 78
    Druckhalteeinrichtungen nach DIN 4751 T2 80
    Druckverluste 58
    E
    Einspritz wasser 31
    Eisen (Fe) 23
    Entgasung 24,25
    Enthalpie-Diagramme 39
    Enthärtung 24
    Entropie-Diagramme 39
    Entsalzung 24
    Erhöhung der Ubertemperatur durch Druckverluste 95
    Erniedrigung der Übertemperatur durch Druckverluste 97
    F
    Fahrweise -, alkalische 30
    -, kombinierte 31
    -, neutrale 31
    Flächenkorrosion -, gleichmäßige 12
    -, ungleichmäßige 12
    Fremddruckhaltung 78
    Frostschutz 66
    G
    Gasbildung 13
    Grashof-Zahl Gr 53
    Grenzwerte für die Wasserbeschaffenheit 27
    H
    Härte 19
    Heißwasseranlagen 29, 78
    Hydrazin 27
    I
    Inertgase im Dampf 100
    Ionenaustauscher 24
    K
    Kalkablagerungen 11
    Kesselanlagen, Wasser für 29
    Kesselwasser 31
    Kohlensäure 20
    Kondensat 31
    Kondensatabführung 106
    Kondensatabieiter 107
    -Bauarten 108
    Kondensatabieiterüberwachung 108
    Kondensatableitung an Lufterhitzern 127
    Kondensatanfall im Rohr 92
    Kondensatanstauregelung 132
    Kondensatheber 120
    Kondensation von Wasserdampf 62
    Kondensatleitungen, Verlegung 117
    Kondensatsammelbehälter 120
    Kondensatsammelleitungen, hochliegende 117
    Kondensatsystem 103
    Kondensatüberwachung 120
    Kondensatvermeidung während des Betriebs 94
    Korrosion 11
    - an Wandungen von freien Wasseroberflächen 12
    - bei einmaliger Wasserfüllung 13
    Korrosionsschäden an Wärme- austauschern 135
    Kühlkreisläufe geschlossene 29
    offene 29
    Kühlwasser 27
    -anlagen 69
    L
    Leitfähigkeit, elektrische 21
    M
    Mangan (Mn2+) 23
    Masse, molare 15
    Massenanteil w 15
    Massenkonzentration p 16
    Meerwasser 9
    Membranausdehnungsgefäß 77
    Membranausdehungssysteme 78
    Mineralwasser 9
    Molmassen der wichtigsten Wasserinhaltsstoffe 16
    N
    Nachverdampfung 105
    Naturumlaufkessel 83
    Nitrat (NO3) 22
    Nitrit (NOä) 22
    O
    Oberflächenwasser 9
    P
    pH-Wert 17
    R
    Rauchrohrkessel 83
    Realgasfaktor von Wasserdampf 36
    Regenwasser 9
    Reynolds-Zahl Re 53
    Rohwasser 9, 31
    Rückführung 111
    S
    Sammelsystem 111
    Sauerstoff, chemische Bindung 26
    Säure- und Basekapazität 20
    Säurekapazität eines Wassers 20
    Schwimmerkondensatabieiter 108
    Selbstdruckhaltung 78
    Siedeverlauf 34
    Sole 9, 65
    Spannungsreihe, elektrolytische 12
    Speisewasser 31
    -, salzfreies 31
    -, salzhaltiges 31
    Steinbildung 11
    Stoff menge n 15
    Stoffmengenanteil x 16
    Stoff mengenkonzentration c 16
    Strömungsgeschwindigkeit 53
    Strömungskennzahlen 53
    Sulfat (S023-) 22
    T
    Temperaturabfall im Rohr 91
    U
    Umkehrosmose 25
    V
    Verdampfung von Wasser 62
    Verdampfungsziffer nv 104
    Viskosität, dynamische 39
    Volumenanteil ip 16
    W
    Wärmeaustauscher -, dampfseitige Regelung 132
    -, Korrosionsschäden 135
    Wärmekapazität, wahre spezifische 35
    Wärmeleitfähigkeit 35
    Wärmeübergangskoeffizienten 58
    Wärmeverluste 90
    Warmwasseranlagen 29, 77
    Wasser -, hochreines 22
    -, teilentsalztes 31
    -, vollentsalztes 31
    -analyse 21
    -anlagen unter 0°C 65
    -aufbereitung 15
    -dampf, Erzeugung 81
    -dampfanlagen 81
    -dampftabellen 49
    --Glykol-Lösungen 66
    -rohrkessel 83
    --Salz-Lösungen 65
    Wasserstoffbildung 13
    Wassertabellen 48
    Weichwasser 31
    Z
    Zusatzwasser 31
    Zwangdurchlaufkessel 85
    Zwangumlaufkessel 85