DE476857C - Blow-down valve for steam boiler - Google Patents
Blow-down valve for steam boilerInfo
- Publication number
- DE476857C DE476857C DEW75460D DEW0075460D DE476857C DE 476857 C DE476857 C DE 476857C DE W75460 D DEW75460 D DE W75460D DE W0075460 D DEW0075460 D DE W0075460D DE 476857 C DE476857 C DE 476857C
- Authority
- DE
- Germany
- Prior art keywords
- blow
- down valve
- steam boiler
- valve
- lever
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
- F22B37/545—Valves specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Description
Abschlammventil für Dampfkessel Zum Abschlämmen der Dampfkessel werden jetzt hauptsächlich Schnellschlußventile verwendet, welche durch Hebeldruck geöffnet werden. Hierbei brechen häufig die Abschlammkrümmer oder die Eintrittsstutzen der Abschlammventile. Denn obwohl zum öffnen der Ventile einDruck von IS bis 2o kg am Hebelende genügt, wird oft infolge Unachtsamkeit die vier- oder mehrfache Höhe erreicht, weil die Heizer nicht selten ihr ganzes Körpergewicht ruckweise auf den Ventilhebel wirken lassen. Dies hat fast stets längere Betriebsstörungen und schwere Schäden für den Kessel oder das Betriebspersonal zur Folge, weil durch die Bruchstelle der ganze unter Druck stehende Kessel leer läuft.Blow-down valve for steam boilers For blow-down the steam boiler now mainly quick-closing valves used, which opened by lever pressure will. In this case, the blowdown elbows or the inlet nozzles often break Blowdown valves. Because although to open the valves a pressure of IS to 20 kg am The end of the lever is sufficient, often four or more times the height is reached as a result of carelessness, because the stokers often jerk their whole body weight on the valve lever let it work. This almost always results in prolonged operational disruptions and severe damage for the boiler or the operating personnel, because the fracture point of the entire pressurized boiler runs empty.
Um dieser Gefahr zu begegnen, besteht die Vorschrift, die Abschlammventile durch Unterlegen von Steinen oder Keilen zu stützen. Diese Maßnahme kann jedoch keine volle Sicherheit bieten, weil sich diese Unterlagen mit der Zeit lockern und nach einer Ventilreparatur auch selten wieder in die richtige Lage gebracht werden.In order to counter this danger, the regulation exists, the blowdown valves by placing stones or wedges underneath. However, this measure can do not offer complete security because these documents loosen up over time and seldom returned to the correct position after a valve repair.
Die Erfindung besteht nun darin, daß am Bedienungshebel des AAbbschlammventils eine Bruchstelle vorbereitet ist, an welcher der Bruch bereits bei einer erheblich geringeren Belastung erfolgt, als der Krümmer und die Eintrittsseite des Ventils, also die gefährdeten Stellen, mit Sicherheit tragen können. Ein Bruch an dieser Stelle ist mit keinerlei Gefahr verbunden und stört auch den Betrieb nicht, weil die Bruchstelle an einem leicht auswechselbaren Stück angeordnet wird, das in wenigen Minuten ersetzt werden kann.The invention now consists in that on the operating lever of the Abbschlammventils a break point is prepared at which the break is already significant in one there is less load than the manifold and the inlet side of the valve, so the endangered areas can safely carry. A break on this one Place is not associated with any danger and does not interfere with operations, because the breaking point is arranged on an easily replaceable piece that in a few Minutes can be replaced.
Die Abbildung zeigt ein Ausführgngsbeispiel des Erfindungsgegenstandes. Ein schmiedeeiserner Druckhebel a ist in einem Gußstück b befestigt. Dieses ist zwischendem Drehpunkt c und dem Druckpunkt d bei e so weit eingeschnürt, daß der zum Öffnen des Ventils erforderliche Druck noch mit Sicherheit aufgenommen wird, während bei Überlastung des Hebels der Bruch an dieser Stelle schon dann erfolgt, wenn die zulässige Beanspruchung des Ablaßkrümmers und der Eintrittsseite des Ventils nöch nicht erreicht ist.The figure shows an exemplary embodiment of the subject matter of the invention. A wrought iron pressure lever a is fixed in a casting b. This is between the pivot point c and the pressure point d constricted at e so far that the the pressure required to open the valve is still recorded with certainty, while if the lever is overloaded, the break occurs at this point, if the permissible stress on the exhaust manifold and the inlet side of the valve has not yet been reached.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW75460D DE476857C (en) | Blow-down valve for steam boiler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW75460D DE476857C (en) | Blow-down valve for steam boiler |
Publications (1)
Publication Number | Publication Date |
---|---|
DE476857C true DE476857C (en) | 1929-05-27 |
Family
ID=7609902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW75460D Expired DE476857C (en) | Blow-down valve for steam boiler |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE476857C (en) |
-
0
- DE DEW75460D patent/DE476857C/en not_active Expired
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