DE427373C - Device for electrical summing of variable quantities, e.g. B. the instantaneous values of flow meters - Google Patents

Device for electrical summing of variable quantities, e.g. B. the instantaneous values of flow meters

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Publication number
DE427373C
DE427373C DEL57582D DEL0057582D DE427373C DE 427373 C DE427373 C DE 427373C DE L57582 D DEL57582 D DE L57582D DE L0057582 D DEL0057582 D DE L0057582D DE 427373 C DE427373 C DE 427373C
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Germany
Prior art keywords
values
circuit
resistors
row
resistance
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Expired
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DEL57582D
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German (de)
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Individual
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Individual
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Priority to DEL57582D priority Critical patent/DE427373C/en
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Publication of DE427373C publication Critical patent/DE427373C/en
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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D1/00Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/16Measuring arrangements giving results other than momentary value of variable, of general application giving a value which is a function of two or more values, e.g. product or ratio
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H11/00Travelling-grates
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/07Integration to give total flow, e.g. using mechanically-operated integrating mechanism
    • G01F15/075Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Description

Vorrichtung zum elektrischen Summieren veränderlicher Größen, z. B. der Augenblickswerte von Mengenmessern. Die Erfindung bezieht sieh auf eine Vorrichtung zum elektrischen Summieren veränderlicher Größen, z. B. der Augenblickswerte von Mengenmessern mit Hilfe von Widerständen, wobei die Einzelwerte auch einzeln angezeigt werden können. Das Neue besteht in der nachstehend näher erläuterten und in den Ansprüchen gekennzeichneten Schaltungsanordnung, die es ermöglicht, den Gesamtwiderstand und daher die Belastung der Stromquelle dauernd konstant zu erhalten. Außerdem besteht die Erfindung in der Anwendung dieser Anordnung. insbesondere zum Messen des Kohleverbrauchs bei Wanderrostfeuerungen.Device for electrical summing of variable quantities, e.g. B. the instantaneous values of flow meters. The invention relates to an apparatus for the electrical summation of variable quantities, e.g. B. the instantaneous values of Flow meters with the help of resistors, whereby the individual values are also displayed individually can be. The novelty consists in the one explained in more detail below and in the Claims characterized circuit arrangement, which enables the total resistance and therefore to keep the load on the power source constant at all times. In addition, there is the invention in the application of this arrangement. especially for measuring coal consumption with traveling grate furnaces.

Abb. i zeigt die allgemeine Anordnung bei Wassermessern und Abb.2 bei einem Wanderrost.Fig. I shows the general arrangement of water meters and Fig. 2 with a traveling grate.

Die entsprechend den Augenblickswerten der Strömung sich einstellenden Wasserineaser N r. i und N r. 2 verändern mittels der Schiebekontakte cl und c. die mit der Stromquelle j hintereinandergeschalteten widerstände a1 und a .2. Zwecks Ausgleichung dieser Änderungen, so daß der Gesamtwiderstand konstant bleibt, sind in demselben Stiomkreise in Reihe geschaltet die Widerstände bi und b2, die mittels der mit den Schielekontalct,-n cl oder c3 verbundenen Schiebekontakte c2 oder c4 gleichzeitig mit verändert werden, und zwar so, daß von dem .einen Widerstand bi oder b2 ebensoviel ab-oder zugeschaltet wird, als von a. oder a.; zu-'2 abgeschaltet wird. Der dem dritten Wassermesser N r. 3 zugeordnete Widerstand a3 bleibt unverändert in Reihe geschaltet, und es wird von ihm nur mittels der Schiebekontakte c,, eine dem Strömungswerte von N r- 3 proportionale Spannung abgegriffen, die, wie aus der Abbildung ohne weiteres ersichtlich wird, den Spannungswerten, die den Strömungswerten der Wassermesser Nr. i und Nr. 2 entsprechen, zuaddiert wird, #o daß das Voltmeter e die Summe der Strö-#nungswerte anzeigt, die im Instrument j 1 -<-cgistriert und im Zähler g@ integriert wird, während die Voltmeter g die Einzelwerte anzeigen. Nach Abb.2 sind Widerstände hl mit Kompensationswiderständen lag paarweise angeordnet, um z. B. die Wanderrostfeuerungen einer Kesselanlage zti überwachen. Die Widerstände werden der Schichthöhe des Brennstoffes entsprechend verstellt. Der letzte Widerstand 1r1 ist wie beim ersten Beispiel mit keinem Kompensationswiderstande gepaart. I_üngs neben jedem Widerstande Bogt eire Kontalz_tschiene i, die mit dem zu-';ehörigen Wider Stande durch einen Schiebe-;contakt j in Verbindung steht. Die Verstel-'ung wird von irgendeinem Teile der Feueung, z. B. vom Brennstoffschieber gesteuert, @1. h. von der Schichthöhe des Brennstoffes abhängig gemacht. Als Stromquelle dient der Generator k. Alles weitere bezüglich der Schaltung ergibt sich aus der Abb.2. Das #N Toltmeter l zeigt den Summenwert an und ;rt soll zum Registrieren der Spannung dienen. Der von Hand einzustellende Regulierwider-,tand n dient zur Einstellung.The water ineasers no. i and no. 2 change by means of the sliding contacts cl and c. the resistors a1 and a .2 connected in series with the current source j. In order to compensate for these changes, so that the total resistance remains constant, the resistors bi and b2 are connected in series in the same stiom circuit and are changed simultaneously by means of the sliding contacts c2 or c4 connected to the squint contact, -n cl or c3, as follows that as much of the .a resistor bi or b2 is switched on or off as from a. or a .; to-'2 is switched off. The third water knife No. 3 associated resistor a3 remains connected in series unchanged, and it is tapped from it only by means of the sliding contacts c ,, a voltage proportional to the flow values of N r-3, which, as can be seen from the figure, the voltage values that the Flow values of the water meters No. i and No. 2 correspond, is added, #o that the voltmeter e displays the sum of the flow values, which is registered in the instrument j 1 - <- c and integrated in the counter g @, while the voltmeter g display the individual values. After Fig.2 resistors hl was with compensation resistors arranged in pairs to z. B. monitor the traveling grate firing of a boiler system zti. The resistances are adjusted according to the layer height of the fuel. As in the first example, the last resistor 1r1 is not paired with any compensation resistor. I_üngs next to each resistance Bogt eire Kontalz_tschiene i, which is connected to the corresponding resistance by a sliding; contact j. The adjustment is made by any part of the fire, e.g. B. controlled by the fuel slide, @ 1. H. made dependent on the layer height of the fuel. The generator k serves as the power source. Everything else regarding the circuit is shown in Fig.2. The #N toltmeter l shows the total value and; rt is used to register the voltage. The regulating resistance n to be set by hand is used for setting.

Ein ähnlicher, ebenfalls regulierbarer Widerstand o kann, wenn notwendig, in den Stromkreis des Voltmeters e eingeschaltet -.:erden (s. Abb. i).A similar, also adjustable resistance o can, if necessary, switched into the circuit of the voltmeter e -.: earth (see Fig. i).

Der Generator k (Dynamomaschine) wird n der Beschicktulgsanlage der Feuerung @@iigetrieben, und zwar so, daß seine Geschwindigkeit proportional der Geschwindigkeit der Kohlenzuführung ist. Wird nun die Maschine so eingerichtet, daß ihre Spannung der Geschwindigkeit proportional ist, so wird das eltmeter auch bei veränderlicher Geschwindigkeit den Augenblickswert des Brennstoffverbrauches richtig anzeigen, weil die Brennstoffmenge in der Zeiteinheit dem Produkt aus der Geschwindigkeit des Förderbandes oder des @@"anderrostes und der. Höhe der Brennstoffschicht proportional ist.The generator k (dynamo machine) is n of the feeding system Firing is driven in such a way that its speed is proportional to the Coal feed speed is. If the machine is now set up in such a way that that their tension is proportional to the speed, so is the eltmeter if the speed changes, the instantaneous value of the fuel consumption display correctly because the amount of fuel in the unit of time is the product of the Speed of the conveyor belt or the other grate and the height of the fuel layer is proportional.

Claims (3)

PATIN T-Ax SPRÜCHI:: i. Vorrichtung zum elektrischen Summieren veränderlicher Größen, z. B. der Augenblickswerte von Mengenmessern mittels Widerstandsschaltung mit oder ohne Anzeige der Einzelwerte, dadurch gekennzeichnet, daß entsprechend den zu summierenden Werten jeweils veränderte Widerstände in einem Stromkreis mit einer Quelle von konstanter Spannung in Reihe geschaltet sind und daß in denselben Stromkreis eine. zweite Reihe den ersten paarweise zugeordneter Widerstände eingeschaltet ist, die gegenläufig so verändert werden, daß der Gesamtwiderstand im Stromkreise unverändert bleibt, wobei die Einzelspannungen an den veränderlichen Widerständen der ersten Reihe den Einzelwerten und die Gesamtspannung dieser Reihe dem Stimmenwer te entsprechen. PATIN T-Ax SPRÜCHI :: i. Device for electrical summing of variable Sizes, e.g. B. the instantaneous values of flow meters by means of a resistance circuit with or without display of the individual values, characterized in that accordingly the values to be summed up with changed resistances in a circuit a source of constant voltage are connected in series and that in the same Circuit one. second row switched on to the first paired resistors which are changed in opposite directions so that the total resistance in the circuit remains unchanged, with the individual voltages at the variable resistors the first row to the individual values and the overall tension of this row to the votes te correspond. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß zwecks Vereinfachung an Stelle des einen Paares der veränderlichen Widerstände ein unveränderlicher Widerstand angeordnet ist, an dem mittels eines seinem zugehörigen Werte entsprechend verstellten Kontaktes die Spannung abgegriffen und mit summiert wird. 2. Apparatus according to claim i, characterized in that for the purpose Simplification, instead of one pair of variable resistances, one invariable Resistance is arranged at which by means of one of its associated values adjusted contact the voltage is tapped and added together. 3. Vorrichtung nach Anspruch i und 2, dadurch gekennzeichnet, daß die Einstellung der Widerstände und des Kontaktes (Anspruch 2) bei einer Feuerung mit '%#@Tanderrost entsprechend der Schichthöhe des Brennstoffes erfolgt. Vorrichtung nach Anspruch i bis 3, dadurch gekennzeichnet, daß die Spannung der Stromquelle entsprechend der Fördergeschwindigkeit des Brennstoffes geregelt `viril.3. Device according to claims i and 2, characterized in that the setting of the resistors and the contact (claim 2) for a furnace with '% # @ tander grate accordingly the layer height of the fuel takes place. Device according to claims i to 3, characterized characterized in that the voltage of the power source corresponds to the conveying speed fuel regulated `virile.
DEL57582D 1923-03-24 1923-03-24 Device for electrical summing of variable quantities, e.g. B. the instantaneous values of flow meters Expired DE427373C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL57582D DE427373C (en) 1923-03-24 1923-03-24 Device for electrical summing of variable quantities, e.g. B. the instantaneous values of flow meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL57582D DE427373C (en) 1923-03-24 1923-03-24 Device for electrical summing of variable quantities, e.g. B. the instantaneous values of flow meters

Publications (1)

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DE427373C true DE427373C (en) 1926-04-07

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DEL57582D Expired DE427373C (en) 1923-03-24 1923-03-24 Device for electrical summing of variable quantities, e.g. B. the instantaneous values of flow meters

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067961B (en) * 1959-10-29 Elfriede Adler, geb. Wilhelm, Dierk Adler, Tens Adler, Rolf Adler und Uwe Adler, Köln-Bickendorf Control procedures for determining, displaying and registering deviations in the efficiency of directly heated heat exchangers that occur during operation, which are justified in the care taken in operation and maintenance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067961B (en) * 1959-10-29 Elfriede Adler, geb. Wilhelm, Dierk Adler, Tens Adler, Rolf Adler und Uwe Adler, Köln-Bickendorf Control procedures for determining, displaying and registering deviations in the efficiency of directly heated heat exchangers that occur during operation, which are justified in the care taken in operation and maintenance

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