DE451119C - Device for venting feed water - Google Patents

Device for venting feed water

Info

Publication number
DE451119C
DE451119C DEE33530D DEE0033530D DE451119C DE 451119 C DE451119 C DE 451119C DE E33530 D DEE33530 D DE E33530D DE E0033530 D DEE0033530 D DE E0033530D DE 451119 C DE451119 C DE 451119C
Authority
DE
Germany
Prior art keywords
feed water
venting
steam
thermostat
temperature
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
DEE33530D
Other languages
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.)
ELEKTROWERKE AG
Original Assignee
ELEKTROWERKE AG
Publication date
Priority to DEE33530D priority Critical patent/DE451119C/en
Application granted granted Critical
Publication of DE451119C publication Critical patent/DE451119C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0063—Regulation, control including valves and floats

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Temperature-Responsive Valves (AREA)

Description

Vorrichtung zum Entlüften von Speisewasser.Device for venting feed water.

Die Erfindung betrifft Vorrichtungen zum Entlüften von Kesselspeisewasser, bei denen der Unterdruck im Entlüfter entsprechend der Temperatur des Speisewassers durch einen in der Kondensatleitung vorgesehenen Thermostaten selbsttätig geregelt wird. The invention relates to devices for venting boiler feed water, where the negative pressure in the deaerator corresponds to the temperature of the feed water automatically regulated by a thermostat provided in the condensate line will.

Bei diesen bekannten Entlüftungsvorrichtungen wird zumeist vom Thermostaten ein Ventilkegel in der Vakuumleitung proportional der Temperatur des Speisewassers gesteuert. In these known venting devices, the thermostat is usually used a valve cone in the vacuum line proportional to the temperature of the feed water controlled.

Der Zusammenhang zwischen Temperatur und Spannung des gesättigten Wasserdampfes im Vakuumgebiet kann aber nur bei geringem Temperaturunterschied als proportional angesehen werden. Daher genügt ein einfacher Ventilkegel zur Steuerung des Vakuums nur dann, wenn es sich um ganz geringe Schwankungen bei der Erwärmung des Speisewassers handelt. Bei größeren Schwankungen wird daher der für eine bestimmte Temperatur nchtig eingestellte Ventilkegel wegen der oben erw, ähnten Proportionalität bei geringerer Temperatur die Vakuumleitung zu wenig öffnen.The relationship between temperature and voltage of the saturated However, water vapor in the vacuum area can only be used with a small temperature difference be considered proportional. A simple valve cone is therefore sufficient for control of the vacuum only if there are very small fluctuations in heating of the feed water. In the case of larger fluctuations, the one for a certain Valve cone not adjusted to the temperature due to the above-mentioned proportionality Open the vacuum line too little if the temperature is lower.

Dieser Nachteil wird nun gemäß der Erfindung dadurch beseitigt, daß die Mantellinie des Ventilkörpers so ausgebildet ist, daß für jede Stellung des durch den Thermostatet eingeregelten Ventilkörpers das gleiche oder annähernd gleiche Dampfgewicht abgesaugt wird. This disadvantage is now eliminated according to the invention in that the surface line of the valve body is designed so that for each position of the The valve body regulated by the thermostat is the same or approximately the same Steam weight is sucked off.

Für jede Temperatur des Dampfes, d. h. also auch für jede Stellung des Ventils, gibt es bei gesättigtem Dampf nur einen zugehörigen Druck und ein zugehöriges spezifisches Volumen. Bei gegebenem Unterdruck besteht also auch ein zugehörig, es Druckgefälle bzw. eine entsprechende Dampfgeschwindigkeit, woraus bei gegebenem Dampfgewicht der erforderliche freie Ventilquer-G # v schnitt sich zu F = ergibt. In dieser c Formel bedeutet F = freier Ventilquerschnitt, G = Dampfgewicht, v = spezifisches Volumen des Dampfes und c = Dampfgeschwindigkeit Konstante. /Wärmegefälle. For every temperature of the steam, ie also for every position of the valve, there is only one associated pressure and one associated specific volume in the case of saturated steam. With a given negative pressure there is also an associated pressure gradient or a corresponding steam velocity, from which the required free valve cross-section G # v for a given steam weight results in F =. In this c formula, F = free valve cross-section, G = steam weight, v = specific volume of the steam and c = steam speed constant. / Heat gradient.

Der danach notwendige Ventilquerschnitt ergibt also die aus der Zeichnung ersichtliche Form.The valve cross-section required after this results from the drawing apparent form.

Claims (1)

P A T E N T A N S P R U C H : Vorrichtung zum Entlüften von Kesselspeisewasser, bei der der Unterdruck im Entlüfter entsprechend der Temperatur des Speisewassers durch einen in der Kondensatleitung vorgesehenen Thermostaten selbsttätig geregelt wird, dadurch gekennzeichnet, daß der Thermostat einen Ventilkörper steuert, dessen Mantellinie so ausgebildet ist, daß für jede Stellung des durch den Thermostaten eingeregeiten Ventilkörpers das gleiche oder annähernd gleiche Dampfgewicht abgesaugt wird. PATENT CLAIM: Device for venting boiler feed water, in which the negative pressure in the ventilator is automatically regulated according to the temperature of the feed water by a thermostat provided in the condensate line, characterized in that the thermostat controls a valve body, the surface line of which is designed so that for each position of the valve body entered by the thermostat, the same or approximately the same weight of steam is sucked off.
DEE33530D Device for venting feed water Expired DE451119C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE33530D DE451119C (en) Device for venting feed water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE33530D DE451119C (en) Device for venting feed water

Publications (1)

Publication Number Publication Date
DE451119C true DE451119C (en) 1927-10-17

Family

ID=7076264

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE33530D Expired DE451119C (en) Device for venting feed water

Country Status (1)

Country Link
DE (1) DE451119C (en)

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