DE417199C - Feed device of a boiler system with special high and low pressure economizer for each boiler and common high and low pressure feed pump - Google Patents

Feed device of a boiler system with special high and low pressure economizer for each boiler and common high and low pressure feed pump

Info

Publication number
DE417199C
DE417199C DEA38657D DEA0038657D DE417199C DE 417199 C DE417199 C DE 417199C DE A38657 D DEA38657 D DE A38657D DE A0038657 D DEA0038657 D DE A0038657D DE 417199 C DE417199 C DE 417199C
Authority
DE
Germany
Prior art keywords
low pressure
boiler
feed
pump
valves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEA38657D
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRIEDRICH MUENZINGER DR
AEG AG
Original Assignee
FRIEDRICH MUENZINGER DR
AEG AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FRIEDRICH MUENZINGER DR, AEG AG filed Critical FRIEDRICH MUENZINGER DR
Priority to DEA38657D priority Critical patent/DE417199C/en
Application granted granted Critical
Publication of DE417199C publication Critical patent/DE417199C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/02Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes or flue ways
    • F22D1/12Control devices, e.g. for regulating steam temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Description

Speisevorrichtung einer Kesselanlage mit besonderem Hoch- und Niederdruckekonomiser für jeden Kessel und gemeinsamer Hoch- und Niederdruckspeisepumpe. Bei Anlagen mit mehreren Hochdruckdampfkesseln, von denen jeder einen besonderen gußeisernen Niederdruckekonomiser und einen schmiedeeisernen Hochdruckekonomiser hat, war es bisher erforderlich,-eine Hoch- und eine Niederdruckspeisepumpe für jeden einzelnen Kessel besonders vorzunehmen, da bei gemeinsamen Pumpen für die Niederdruckstufe und für die Hochdruckstufe u. a. keine Gewähr dafür gegeben sein würde, daß das Speisewasser durch die beiden Ekonomiser strömt, deren Kessel gerade gespeist werden soll. Die erhebliche Anzahl der bei größeren Werken erforderlichen Pumpen erhöht aber die Anlagekosten sehr und gestaltet den Betrieb außerordentlich verwickelt, zumal die behördlichen Vorschriften für jede dieser Pumpen starke Reserven vorschreiben. Gemäß der Erfindung werden nun diese Nachteile dadurch beseitigt, daß sowohl in die Abzweige zwischen der Druckleitung der Niederdruckpumpe und der Saugleitung der Hochdruckpumpe als auch in die Abzweige zwischen der Druckleitung der Hochdruckpumpe und den einzelnen Kesseln Speisewasserventile eingeschaltet werden, die derart miteinander gekuppelt sind, daß die zu einem Kessel gehörenden beiden Ventile gleichzeitig oder annähernd gleichzeitig öffnen und schließen.Feeding device of a boiler system with special high and low pressure economiser for each boiler and common high and low pressure feed pump. For systems with several high pressure steam boilers, each of which has a special cast iron low pressure economiser and has a wrought-iron high-pressure economiser, it was previously necessary -a To set up high and one low pressure feed pump for each individual boiler, because with common pumps for the low pressure stage and for the high pressure stage u. a. there would be no guarantee that the feed water would pass through the two Economizer flows whose boiler is about to be fed. The considerable number However, the pumps required in larger plants increase the system costs very much and made the operation extraordinarily complicated, especially since the official regulations prescribe strong reserves for each of these pumps. According to the invention now these disadvantages are eliminated in that both in the branches between the pressure line the low pressure pump and the suction line of the high pressure pump as well as in the branches Feed water valves between the pressure line of the high pressure pump and the individual boilers are switched on, which are coupled to each other that the to a boiler belonging two valves open and close at the same time or almost at the same time.

Bei dem in der Zeichnung dargestellten Beispiel ist a,. die Niederdruckpumpe und a$ die Hochdruckpumpe. Die Pumpen können miteinander gekuppelt sein oder getrennte Antriebe haben. Jeder Kessel K hat einen Hochdruckekonomiser HE und einen Niederdruckekonomiser NE. Zwischen Druckleitung der Niederdruckpumpe und Saugleitung der Hochdruckpumpe sowie zwischen Druckleitung der Hochdruckpumpe- und den einzelnen Kesseln ist in jedem Abzweig je ein Speiseventil R eingeschaltet, von denen die beiden zusammengehörigen, wie durch gestrichelte Linien angedeutet, miteinander derart gekuppelt sind, daß sie gleichzeitig oder annähernd öffnen und schließen.In the example shown in the drawing, a,. the low pressure pump and the high pressure pump. The pumps can be coupled to one another or have separate drives. Each boiler K has a high pressure economizer HE and a low pressure economizer NE. Between the pressure line of the low pressure pump and the suction line of the high pressure pump as well as between the pressure line of the high pressure pump and the individual boilers, a feed valve R is switched on in each branch, of which the two associated, as indicated by dashed lines, are coupled with one another in such a way that they are simultaneously or approximately open and close.

Der Zweck der so ausgebildeten Speisevorrichtung erhellt aus folgender Überlegung: Wäre beispielsweise nur die erste Reihe von Speisewasserventilen vorgesehen, so würde beim Öffnen eines dieser Ventile das Wasser, das aus dem in Betracht kommenden Niederdruckekonomiser austritt, nicht nur dem zugehörigen, sondern auch allen übrigen Hochdruckekonomisern zugeführt werden, so daß die übrigen Kessel überspeist würden. Wäre andererseits nur die an die Druckleitung der Hochdruckpumpe angeschlossene Reihe von Speisewasserventilen vorhanden, so würde diese Pumpe das Wasser beim öffnen eines der Ventile allen Niederdruckekonomisern gleichzeitig entnehmen; es würde dann durch die Niederdruckekonomiser der anderen Kessel zu viel Wasser hindurchströmen, so daß es nicht die vorgesehene Temperatur erreichen würde, während umgekehrt im zugehörigen Niederdruckekonomiser die Temperatur mangels ausreichenden Wasserdurchflusses zu hohe Werte annehmen könnte. Bei der Anlage gemäß der Erfindung fließt dagegen das Speisewasser trotz des Anschlusses der Gruppe an gemeinsame Speiseleitungen zufolge der Anordnung paarweise gekuppelter Ventile stets durch die beiden Ekonomiser derjenigen Gruppe, deren Kessel gerade gespeist werden soll, so daß stets eine geordnete Wasserführung gesichert ist. Werden einmal gleichzeitig mehrere Kessel gespeist und dementsprechend mehrere Gruppen von Ventilen gleichzeitig geöffnet, so wird durch jede Ekonomisergruppe annähernd die auf sie entfallende Wassermenge fließen. Kleinere Unregelmäßigkeiten, die hierbei auftreten können, fallen nicht ins Gewicht und können überdies praktisch. dadurch unschädlich gemacht werden, daß das Schließen und öffnen der gekuppelten Ventilpaare mittels je eines selbsttätig wirkenden Speisewasserreglers erfolgt, der bei Erreichen des Höchstwasserstandes im zugehörigen Kessel dessen Ekonomiser abschaltet. Diese Regler schließen also die Speisewasserventile jeder Gruppe um so früher ab, je stärker der Wasserdurchfluß in dieser Gruppe gewesen ist, wodurch die Wirkung etwaiger Unregelmäßigkeiten in gewissem Maße ausgeglichen wird.The purpose of the feed device thus designed is evident from the following Consideration: If, for example, only the first row of feedwater valves were provided, so when opening one of these valves the water that would come out of the under consideration Low pressure economiser exits, not only the associated one, but also all others High pressure economizers are fed so that the remaining boilers would be over-fed. On the other hand, it would only be the one connected to the pressure line of the high-pressure pump Row of feed water valves is available, so this pump would open the water take one of the valves from all the low pressure economizers at the same time; it would then too much water flows through the low pressure economizers of the other boilers, so that it would not reach the intended temperature, while vice versa im associated low pressure economiser the temperature in the absence of sufficient water flow values that are too high. In the system according to the invention, however, flows the feed water despite the group being connected to common feed lines due to the arrangement of valves coupled in pairs, always through the two economizers that group whose kettle is currently being fed, so that it is always an orderly one Water flow is secured. If several boilers are fed at the same time and accordingly several groups of valves are opened at the same time, so will approximately the amount of water allotted to it flow through each economizer group. Smaller irregularities that can occur here are of no consequence and can also be practical. can be rendered harmless by closing and open the coupled pairs of valves by means of an automatically acting feed water regulator occurs, which when the maximum water level is reached in the associated boiler Economizer turns off. So these regulators close the feedwater valves each Group the earlier the stronger the water flow in this group which to some extent offsets the effect of any irregularities will.

Claims (2)

PATENT-ANsPRÜcHE: i. Speisevorrichtung einer Kesselanlage mit besonderem Hoch- und Niederdruckekonomiser für jeden Kessel und gemeinsamer Hoch- sowie Niederdruckspeise-pumpe, dadurch gekennzeichnet, daß in die Abzweige zwischen der Druckleitung der Niederdruckpumpe und der Saugleitung der Hochdruckpumpe sowie zwischen der Druckleitung der Hochdruckpumpe und den einzelnen Kesseln Speisewasserventile eingeschaltet sind, die derart miteinander gekuppelt sind, daß die zu einem Kesselaggregat gehörenden Speisewasserventile gleichzeitig oder annähernd gleichzeitig öffnen und schließen. PATENT CLAIMS: i. Feeding device of a boiler system with special High and low pressure economiser for each boiler and common high and low pressure feed pump, characterized in that in the branches between the pressure line of the low pressure pump and the suction line of the high pressure pump and between the pressure line of the high pressure pump and the individual boilers feed water valves are switched on, which are connected in this way are coupled that the feedwater valves belonging to a boiler unit at the same time or almost simultaneously open and close. 2. Speisevorrichtung nach Anspruch i, dadurch gekennzeichnet, daß Eröffnung und Schluß der gekuppelten Speiseventile von einem selbsttätigen Speisewasserregler bewirkt werden. 2. Feed device according to claim i, characterized in that the opening and closing of the coupled feed valves are effected by an automatic feed water regulator.
DEA38657D 1922-10-22 1922-10-22 Feed device of a boiler system with special high and low pressure economizer for each boiler and common high and low pressure feed pump Expired DE417199C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA38657D DE417199C (en) 1922-10-22 1922-10-22 Feed device of a boiler system with special high and low pressure economizer for each boiler and common high and low pressure feed pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA38657D DE417199C (en) 1922-10-22 1922-10-22 Feed device of a boiler system with special high and low pressure economizer for each boiler and common high and low pressure feed pump

Publications (1)

Publication Number Publication Date
DE417199C true DE417199C (en) 1925-08-07

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ID=6930928

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA38657D Expired DE417199C (en) 1922-10-22 1922-10-22 Feed device of a boiler system with special high and low pressure economizer for each boiler and common high and low pressure feed pump

Country Status (1)

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DE (1) DE417199C (en)

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