DE62082C - Automatic steam shut-off for slow-moving steam engines - Google Patents
Automatic steam shut-off for slow-moving steam enginesInfo
- Publication number
- DE62082C DE62082C DENDAT62082D DE62082DA DE62082C DE 62082 C DE62082 C DE 62082C DE NDAT62082 D DENDAT62082 D DE NDAT62082D DE 62082D A DE62082D A DE 62082DA DE 62082 C DE62082 C DE 62082C
- Authority
- DE
- Germany
- Prior art keywords
- steam
- piston
- shut
- slow
- moving
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000001105 regulatory Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B25/00—Regulating, controlling, or safety means
- F01B25/02—Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
- F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
KLASSE 14: Dampfmaschinen.CLASS 14: Steam Engines.
Um bei Wasserhaltungs - und ähnlichen Maschinen bei einem Bruch des Gestänges etc. das Durchgehen der Maschine und die damit verbundenen Folgen gänzlich unmöglich zu machen, ist der in folgendem beschriebene Apparat construirt. Derselbe besteht im wesentlichen aus zwei mit Wasser gefüllten Cylindern aal, in welchen die Kolben b b1 sich hin- und herbewegen lassen. Der Kolben b steht mit irgend einem beweglichen Theil der Maschine in Verbindung und macht die Hübe derselben mit, während der Kolben bl in Verbindung mit einem Durchgangsventil, einer Drosselklappe oder dergleichen in der Hauptdampfleitung steht. Zwischen beiden Gylindern sind Rückschlagventile c c' und seitlich des Cylinders α ein Durchgangs- oder Regulirventil d angeordnet. Die Wirkung des Apparates ist nun folgende:The apparatus described in the following is designed in order to make it completely impossible for the machine to run away and the consequences associated therewith in the event of a break in the rods etc. in the case of dewatering and similar machines. It consists essentially of two cylinders aa l filled with water, in which the pistons bb 1 can be moved back and forth. The piston b is in connection with some movable part of the machine and makes the strokes of the same, while the piston b l is in connection with a globe valve, a throttle valve or the like in the main steam line. Check valves cc 'are arranged between the two cylinders and a through valve or regulating valve d is arranged on the side of the cylinder α. The effect of the apparatus is now as follows:
Wird die Maschine durch einen Gestängebruch , plötzlichen Wassermangel in den Pumpen etc. entlastet, so wird (z. B. bei tiefstem Stand des Maschinenkolbens, in welcher Stellung die meisten derartigen Unfälle vorkommen) der eintretende Dampf mit grofser Geschwindigkeit den Kolben nach oben treiben. In diesem Falle kann das Wasser über dem Kolben b nicht, wie bei normaler Geschwindigkeit, einfach durch das Regulirventil d auf die untere Seite des Kolbens b treten, sondern ein Theil des Wassers wird durch das Rückschlagventil c in den Cylinder α1 gedrückt und hebt hier den Kolben b1 in die Höhe, wodurch das Dampfventil e sofort geschlossen wird. Ein gleicher Vorgang in entgegengesetzter Richtung geht natürlich vor sich, wenn der Maschinenkolben in der Bewegung nach abwärts gerichtet war, als der Bruch eintrat. Um einem zu hohen Druck in dem Apparat vorzubeugen, ist das Sicherheitsventil f angebracht. Das Ueberlaufrohr g läfst das Wasser bei einem zu hohen Stande des Kolbens b1 ins Freie treten. Das Rückschlagventil h dient zum Füllen. Man braucht bei diesem Apparat also nur das Regulirventil d so zu öffnen, dafs bei der gewünschten Maximalumdrehungszahl noch gerade das Wasser genug Querschnitt rindet, um zwischen der oberen und unteren Seite des Kolbens b circuliren zu können.If the machine is relieved by a broken linkage, a sudden lack of water in the pumps, etc., then (e.g. when the machine piston is at its lowest level, in which position most such accidents occur) the steam entering the piston will drive the piston upwards at great speed. In this case the water above piston b cannot, as at normal speed, simply pass through regulating valve d to the lower side of piston b , but part of the water is pressed through check valve c into cylinder α 1 and is lifted here the piston b 1 upwards, whereby the steam valve e is closed immediately. The same process in the opposite direction naturally occurs if the machine piston was moving downward when the break occurred. To prevent excessive pressure in the apparatus, the safety valve f is attached. The overflow pipe g allows the water to enter the open air if the piston b 1 is too high. The check valve h is used for filling. With this apparatus one only needs to open the regulating valve d in such a way that at the desired maximum number of revolutions the water has just enough cross section to be able to circulate between the upper and lower side of the piston b .
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE62082C true DE62082C (en) |
Family
ID=336092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT62082D Expired - Lifetime DE62082C (en) | Automatic steam shut-off for slow-moving steam engines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE62082C (en) |
-
0
- DE DENDAT62082D patent/DE62082C/en not_active Expired - Lifetime
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