DE513330C - Arrangement for regulating centrifugal pumps - Google Patents
Arrangement for regulating centrifugal pumpsInfo
- Publication number
- DE513330C DE513330C DES91472D DES0091472D DE513330C DE 513330 C DE513330 C DE 513330C DE S91472 D DES91472 D DE S91472D DE S0091472 D DES0091472 D DE S0091472D DE 513330 C DE513330 C DE 513330C
- Authority
- DE
- Germany
- Prior art keywords
- bridge
- branch
- flow rate
- arrangement
- flow meter
- 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
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0676—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on flow sources
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Feeding And Controlling Fuel (AREA)
Description
Nicht immer ist es möglich, die Fördermenge von Kreiselpumpen dadurch zu regeln, daß deren Drehzahl verändert wird. In diesem Falle wird im allgemeinen der Druckschieber in der Pumpendruckleitung verstellt. Bei schwankendem Druck in der Verbraucherleitung ändert sich dauernd bei feststehendem Schieber die Fördermenge der Pumpe, so daß danach getrachtet werden muß, eine Vorrichtung zu schaffen, die selbsttätig eine bestimmte Fördermenge der Pumpe unabhängig von dem Verbraucherdruck sicherstellt. Die selbsttätige Steuerung des Druckschiebers auf konstante Wassermenge ist bekannt, sie ist auf elektrischem Wege gemäß der Erfindung folgendermaßen möglich:It is not always possible to regulate the flow rate of centrifugal pumps in that whose speed is changed. In this case, the pressure slide is generally used adjusted in the pump pressure line. If the pressure in the consumer line fluctuates the delivery rate of the pump changes continuously when the slide is stationary, so that must be sought to create a device that automatically a certain Ensures the delivery rate of the pump regardless of the consumer pressure. The automatic It is known to control the pressure slide valve to a constant amount of water, it is electric Ways according to the invention are possible as follows:
In der Druckleitung 1 der Pumpe 2 wird ein Mengenmesser 3 (Venturirohr, Düsenmeßflansch o. dgl.) eingebaut, der auf einen Taktgeber 4,In the pressure line 1 of the pump 2 is a Flow meter 3 (Venturi tube, nozzle measuring flange or the like) installed, which is based on a clock generator 4,
z. B, ein Strömungsmanometer, wirkt. An das Strömungsmanometer 4 ist ein Ringrohr angebaut, welches in einem Zweig einer Wheatstoneschen Brückenschaltung Hegt. Nimmt man an, daß für eine bestimmte Wassermenge die Brücke im Gleichgewicht ist, so wird jede Änderung der Wassermenge eine Verdrehung des Ringrohres 4 bewirken und damit das Gleichgewicht der Brücke stören. Durch die Brückendiagonale wird also ein Strom fließen.z. B, a flow manometer, works. A ring pipe is attached to the flow manometer 4, which lies in a branch of a Wheatstone bridge circuit. Takes if one assumes that the bridge is in equilibrium for a certain amount of water, each becomes Changing the amount of water cause a rotation of the ring pipe 4 and thus the Disturb the balance of the bridge. A current will flow through the bridge diagonal.
Dieser Strom kann zur Betätigung eines Relais 5, z. B. eines Doppelfallbügelrelais, benutzt werden, mit Hufe dessen der durch den Motor 10 angetriebene Druckschieber 6 verstellt werden kann. Das Doppelfallbügelrelais wird den Schieber so lange verstellen, bis die Brücke wieder im Gleichgewicht ist, die Durchflußmenge also wieder auf den gewünschten Wert gekommen ist. Baut man in den korrespondierenden Zweig der Brücke einen von Hand verstellbaren Widerstand 7 ein, so kann durch diesen Widerstand die Fördermenge beliebig verändert werden. Auch ist es möglich, in einem weiteren Zweig der Brücke ein zweites Ringrohr 8 einzuschalten, welches direkt vom Schieberhub betätigt wird und als Rückführung dient. Der von Hand einstellbare Widerstand zur Einstellung der Fördermenge kann gegebenenfalls auch durch einen durch einen Impuls veränderten Widerstand ersetzt werden, z. B. in Verbindung mit 5c einer automatischen Feuerungsregelung.This current can be used to operate a relay 5, e.g. B. a double fall frame relay, can be used, with the hooves of which the pressure slide 6 driven by the motor 10 can be adjusted. The double safety latch relay will adjust the slide until the bridge is in equilibrium again, i.e. the flow rate has come back to the desired value. If a manually adjustable resistor 7 is built into the corresponding branch of the bridge, this resistor can be used to change the delivery rate as desired. It is also possible to switch on a second ring tube 8 in a further branch of the bridge, which is actuated directly by the slide stroke and serves as a return. The manually adjustable resistance for setting the flow rate can optionally be replaced by a resistance changed by a pulse, e.g. B. in connection with 5c an automatic combustion control.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES91472D DE513330C (en) | Arrangement for regulating centrifugal pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES91472D DE513330C (en) | Arrangement for regulating centrifugal pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
DE513330C true DE513330C (en) | 1930-11-26 |
Family
ID=7516520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES91472D Expired DE513330C (en) | Arrangement for regulating centrifugal pumps |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE513330C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653753A (en) * | 1946-12-19 | 1953-09-29 | Paul H Davey | Compressor regulator |
US2741986A (en) * | 1949-06-18 | 1956-04-17 | B I F Ind Inc | Pumping system |
DE1001114B (en) * | 1953-11-20 | 1957-01-17 | Sulzer Ag | Feed system for steam generator |
US2944488A (en) * | 1954-08-31 | 1960-07-12 | Curtiss Wright Corp | Pump control systems |
DE1147028B (en) * | 1956-07-23 | 1963-04-11 | Bayer Ag | Process for the automatic control of digestion apparatus |
-
0
- DE DES91472D patent/DE513330C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653753A (en) * | 1946-12-19 | 1953-09-29 | Paul H Davey | Compressor regulator |
US2741986A (en) * | 1949-06-18 | 1956-04-17 | B I F Ind Inc | Pumping system |
DE1001114B (en) * | 1953-11-20 | 1957-01-17 | Sulzer Ag | Feed system for steam generator |
US2944488A (en) * | 1954-08-31 | 1960-07-12 | Curtiss Wright Corp | Pump control systems |
DE1147028B (en) * | 1956-07-23 | 1963-04-11 | Bayer Ag | Process for the automatic control of digestion apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2743942A1 (en) | CONTROL VALVE WITH MEASURING DEVICE FOR FLOWING MEDIA | |
DE513330C (en) | Arrangement for regulating centrifugal pumps | |
DE1673520A1 (en) | Gas pressure control system | |
DE1073825B (en) | Position indicator for remote-controlled valves and the like | |
DE10013974A1 (en) | Mixer for fire pump outlet has branch connection pipe for foam feed connected across venturi | |
DE891753C (en) | Flow meter | |
EP0087455B1 (en) | Test device | |
DE747061C (en) | Device for regulating the amount of fluids flowing out of pipes | |
DE430846C (en) | Device for quantity measurement by means of auxiliary current | |
DE746038C (en) | Method for determining the liquid supply in containers by increasing the pressure in the gas-filled container space | |
DE623980C (en) | Device for continuous, controllable mixing of two or more liquids | |
DE522515C (en) | Device for measuring or regulating gas flows, which carry easily separable condensates, using a branched off partial flow | |
DE527690C (en) | Method for regulating the amount of a gas which is added to another gas that has a calorific value that changes over time as a result of its generation method, in which the amount of additional gas is set by a volume meter in conjunction with a controller | |
AT263980B (en) | Installation in burner systems for supplying several burners located at different locations | |
DE864156C (en) | Device for determining the flow rate measured value, in particular in the case of oil burners operating with return flow | |
DE717321C (en) | Device for the constant display of the mixing ratio of air and fuel in internal combustion engines | |
DE575502C (en) | Device for automatically dividing any amount of liquid by weight | |
DE1909012A1 (en) | Mixing device | |
DE357849C (en) | Device for regulating the output of electrode steam boilers | |
DE477426C (en) | Test station for water meters or similar devices | |
DE725377C (en) | Device for triggering a signal or automatic shutdown of gas or liquid quantities | |
DE464207C (en) | Method and device for regulating counter pressure machines, in particular counter pressure turbines | |
DE608022C (en) | Device for measuring and mixing liquid fuels | |
DE404801C (en) | Partial flow gas meter | |
DE959330C (en) | Method and arrangement for flow measurement, especially in the case of pulsating currents |