DE224209C - - Google Patents
Info
- Publication number
- DE224209C DE224209C DENDAT224209D DE224209DA DE224209C DE 224209 C DE224209 C DE 224209C DE NDAT224209 D DENDAT224209 D DE NDAT224209D DE 224209D A DE224209D A DE 224209DA DE 224209 C DE224209 C DE 224209C
- Authority
- DE
- Germany
- Prior art keywords
- steam
- pressure
- air
- heating
- jet pump
- 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.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1003—Arrangement or mounting of control or safety devices for steam heating systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Gegenstand der Erfindung ist eine Regelungsvorrichtung für Niederdruckdampfheizungen. Sie beruht auf der Tatsache, daß die Heizwirkung eines Dampfheizkörpers durch Anwesenheit von Luft verringert wird.The invention relates to a control device for low-pressure steam heating systems. It is based on the fact that the heating effect of a steam heater is reduced by the presence of air.
Die Einrichtung besteht aus einem Nadelventil, das, durch Einwirkung einer temperaturempfindlichen Vorrichtung bewegt, bei sinkender Temperatur öffnet und Luft austreten läßt, so daß sich die Heizwirkung vergrößert, und einer Einrichtung, die dem Dampf in der Nähe des Kessels Luft beimischt, so daß sich bei geschlossenem Nadelventil allmählich wieder Luft im Körper ansammelt und dessen Heizfähigkeit verringert.The device consists of a needle valve which, by the action of a temperature-sensitive Moves device, opens when the temperature drops and lets air escape, so that the heating effect increases, and a device that mixes air with the steam in the vicinity of the boiler, see above that when the needle valve is closed, air gradually builds up again in the body and its heating ability is reduced.
Der Erfindungsgegenstand ist auf der Zeichnung dargestellt.The subject of the invention is shown in the drawing.
Fig. ι zeigt schematisch eine Heizanlage dieser Bauart. α ist ein Heizkessel. Aus demselben strömt der Dampf zunächst durch ein selbsttätig wirkendes Reduzierventil b, wodurch der Druck derart verringert wird, daß mit Hilfe der so entstandenen Druckdifferenz durch einen Dampfstrahlapparat c Luft in die Verteilungsleitung geblasen werden kann. Der auf diese Art mit Luft angereicherte Dampf strömt in den Heizkörper d, a;p dessen unterem Ende die Luftleitung / zum Nadelventil des Reglers g angeschlossen ist.Fig. Ι shows schematically a heating system of this type. α is a boiler. From the same the steam first flows through an automatically acting reducing valve b, whereby the pressure is reduced in such a way that with the help of the pressure difference thus created, air can be blown into the distribution line by a steam jet apparatus c. The steam enriched with air in this way flows into the heating element d, a; p, the lower end of which is connected to the air line / to the needle valve of the regulator g .
Unter normalen Betriebsverhältnissen sei der Druck im U-förmigen Rohr = ft und der zulässige höchste Dampfdruck im Rohr e =: ft e. Würde man das Reduzierventil fortlassen, so würde die Strahlpumpe bei einem gleichmäßigen Dampfverbrauch wohl richtig arbeiten, dagegen würde bei abnehmendem Dampfverbrauch der Druck ft e wachsen, also sehr bald die Druckdifferenz (ft-— ft e) zu klein werden; es würde also die verringerte Strömungsenergie nicht mehr imstande sein, Luft mitzureißen. Diesem Vorgang wirkt das Reduzierventil b entgegen, indem es selbsttätig den Heizdampf drosselt, sobald der Druck ft e in der zum Heizkörper führenden Leitung den zulässigen Höchstwert erreicht hat.Under normal operating conditions, let the pressure in the U-shaped pipe = ft and the maximum permissible vapor pressure in the pipe e =: ft e. If the reducing valve were omitted, the jet pump would work properly with a constant steam consumption, on the other hand the pressure ft e would increase with decreasing steam consumption, so the pressure difference (ft- - ft e) would very soon become too small; the reduced flow energy would therefore no longer be able to entrain air. The reducing valve b counteracts this process by automatically throttling the heating steam as soon as the pressure ft e in the line leading to the radiator has reached the maximum permissible value.
Voraussetzung ist natürlich, daß der Dampfdruck im Kessel durch geeignete Mittel (Zugregler) konstant gehalten wird, so daß auch der Druck ft in dem U-förmigen Rohr annähernd konstant bleibt.The prerequisite is of course that the steam pressure in the boiler is kept constant by suitable means (draft regulator), so that the pressure ft in the U-shaped tube also remains approximately constant.
Fig. 2 zeigt eine Ausführungsart des Reglers g. h ist ein Nadelventil, i eine aus zwei Metallen bestehende temperaturempfindliche Feder und k eine Stellschraube zum Einstellen der Temperatur. Die Feder i. biegt sich bei sinkender Raumtemperatur so, daß das Nadelventil h sich öffnet und die Luft aus der Leitung f austritt, wodurch die Heizwirkung des Systems vergrößert wird.Fig. 2 shows an embodiment of the controller g. h is a needle valve, i is a temperature sensitive spring made of two metals, and k is a set screw for adjusting the temperature. The spring i. bends when the room temperature drops so that the needle valve h opens and the air exits the line f , whereby the heating effect of the system is increased.
Claims (2)
Publications (1)
Publication Number | Publication Date |
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DE224209C true DE224209C (en) |
Family
ID=484960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT224209D Active DE224209C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE224209C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4585054A (en) * | 1984-05-14 | 1986-04-29 | Koeprunner Ernst | Condensate draining system for temperature regulated steam operated heat exchangers |
-
0
- DE DENDAT224209D patent/DE224209C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4585054A (en) * | 1984-05-14 | 1986-04-29 | Koeprunner Ernst | Condensate draining system for temperature regulated steam operated heat exchangers |
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