DE392806C - Device for the automatic limitation of a highest and a lowest water level for an electrically driven feed pump - Google Patents
Device for the automatic limitation of a highest and a lowest water level for an electrically driven feed pumpInfo
- Publication number
- DE392806C DE392806C DEM80720D DEM0080720D DE392806C DE 392806 C DE392806 C DE 392806C DE M80720 D DEM80720 D DE M80720D DE M0080720 D DEM0080720 D DE M0080720D DE 392806 C DE392806 C DE 392806C
- Authority
- DE
- Germany
- Prior art keywords
- switch
- water level
- switched
- feed pump
- motor
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Die Erfindung betrifft eine Einrichtung zur selbsttätigen Begrenzung eines höchsten
und eines niedrigsten Wasserstandes, und zwar eine Einrichtung, welche den zu be-S
grenzenden Wasserständen entsprechend angeordnete Kontakte aufweist, die in den Stromkreis einer elektrisch angetriebenen
Speisepumpe eingeschaltet sind.
Auf der Zeichnung ist der Erfindungsgegenstand in zwei beispielsweisen Ausführungsformen
schematisch dargestellt. Es bedeutet 1 einen Dampfkessel mit elektrischen
Wasserkontakten 11 und 12, die den-höchsten
bzw. den niedrigsten Wasserspiegel begrenzen. 13 ist eine von einem Drehstrommotor
4 angetriebene Speisepumpe. 2 ist der Schalter des Pumpenmotors und S "die Schalterweile,
die mittels einer Spiralfeder 6 mit dem Wellenzapfen 14 eines Elektromotors 3
gekuppelt ist. Der Motorschalter 2 trägt eine Nullspannungsauslösevorrichtung 9. 7 und 8
bedeuten Vorschaltwiderstände. 10 ist die Wicklung des Motors 3, 16 ein Schalter für
die Regulierapparate.The invention relates to a device for the automatic limitation of a highest and a lowest water level, namely a device which has contacts which are arranged according to the water levels to be limited and which are connected to the circuit of an electrically driven feed pump.
In the drawing, the subject matter of the invention is shown schematically in two exemplary embodiments. It means 1 a steam boiler with electrical water contacts 11 and 12, which limit the-highest and the lowest water level. 13 is a feed pump driven by a three-phase motor 4. 2 is the switch of the pump motor and S "is the switch shaft, which is coupled to the shaft journal 14 of an electric motor 3 by means of a spiral spring 6. The motor switch 2 carries a zero voltage release device 9. 7 and 8 represent series resistors. 10 is the winding of the motor 3, 16 a switch for the regulators.
Die Wirkungsweise dieser gezeigten Einrichtung ist folgende:The mode of operation of this device shown is as follows:
Der Kessel 1 ist leer. Schalter 16 wird eingeschaltet, der Motor 3 läuft an und verdreht die Feder 6, bis sie auf den Wellen $ und 14 aufliegt. Dadurch wird der Motorschalter 2 eingeschaltet und verriegelt, der Motor4 läuft, und die Pumpeis fördert Wasser in den Kessel 1. Erreicht der Wasserspiegel den Kontakt 12, so wird die Wicklung 10 des Motors 3 überbrückt, d. h. kurzgeschlossen, und die verdrehte Feder 6 treibt den Anker des Motors 3 in die Ruhelage zurück. Der Schalter 2 bleibt eingeschaltet. Berührt das Wasser den Kontakt ii, so wird dadurch die Spule 9 kurzgeschlossen und damit der Schalter 2 ausgelöst und die Pumpe 13 stillgesetzt. Sinkt aus irgendeinem Grunde der Wasserspiegel unter den Kontakt 12, so erhält der Motor 3 wieder Strom, und der Pumpenmotor· 4 wird wieder eingeschaltet.The boiler 1 is empty. Switch 16 is switched on, the motor 3 starts and turns the spring 6 until it rests on the shafts $ and 14 rests. As a result, the motor switch 2 is turned on and locked, the Motor4 is running and the pump is delivering Water in the boiler 1. When the water level reaches contact 12, the Winding 10 of motor 3 bridged, d. H. shorted, and the twisted spring 6 drives the armature of the motor 3 back into the rest position. The switch 2 remains switched on. If the water touches the contact ii, the coil 9 is short-circuited as a result and thus the switch 2 is triggered and the pump 13 is stopped. Sinks out for whatever reason the water level is below contact 12, motor 3 regains Power, and the pump motor · 4 is turned on again.
Abb. 2 zeigt die gleiche Anordnung der Einrichtung nach Abb. 1, nur mit dem Un-Fig. 2 shows the same arrangement of the device according to Fig. 1, only with the un-
terschied, daß an Stelle des Vorschaltwiderstandes 8 der Abb. i ein Relais 17 vorgesehen ist, um zu vermeiden, daß dauernd Strom über die Teile 12 und 10 fließt. Taucht näm-Hch der Kontakt 12 ein, so schaltet das Relais die Motor wicklung 10 aus, solange das Wasser über dem Kontakt 12 steht.The difference is that a relay 17 is provided in place of the series resistor 8 in FIG is to avoid that current flows through the parts 12 and 10 continuously. Dives namely-Hch the contact 12 on, the relay switches the motor winding 10 off, as long as that Water is above contact 12.
Die Betätigungsvorrichtung des Motorschalters 2 könnte auch ein Elektromagnet sein. The actuation device of the motor switch 2 could also be an electromagnet .
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH392806X | 1923-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE392806C true DE392806C (en) | 1924-03-31 |
Family
ID=4513990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM80720D Expired DE392806C (en) | 1923-02-07 | 1923-03-06 | Device for the automatic limitation of a highest and a lowest water level for an electrically driven feed pump |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE392806C (en) |
-
1923
- 1923-03-06 DE DEM80720D patent/DE392806C/en not_active Expired
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