ELECTRIC MOTOR DRIVEN PUMP

• US 20190331118A1
• Filed: 12/15/2017
• Published: 10/31/2019
• Est. Priority Date: 12/21/2016
• Status: Active Application

• Current Assignee: Grundfos Holding A/S (POUL DUE Jensen's FOND)
• Original Assignee: Grundfos Holding A/S (POUL DUE Jensen's FOND)
• Inventors: AARESTRUP, Jan Caroe, MIKKELSEN, Anders Silkaer, CHRISTENSEN, Carsten, MOLGAARD MOLLER, Simon, NIELSEN, Rasmus Orndrup
• Application Number:
  US16/471,978
• Publication Number:
  US 20190331118A1
• Time in Patent Office: Days
• CPC Class Codes: F04D 13/06 the pump being electrically driven
• CPC Class Codes: F04D 15/0088 Testing machines
• CPC Class Codes: G01D 1/12 giving a maximum or minimum of a value
• CPC Class Codes: G01D 18/002 Automatic recalibration G01D18/008 takes precedence
• CPC Class Codes: G01D 21/00 Measuring or testing not otherwise provided for
• CPC Class Codes: G01D 3/024 for range change; Arrangements for substituting one sensing member by another
• CPC Class Codes: G01K 15/00 Testing or calibrating of thermometers
• CPC Class Codes: G01L 27/00 Testing or calibrating of apparatus for measuring fluid pressure

Abstract

An electromotorically driven pump (1) includes control electronics (6) for the connection of at least one sensor (5). The control electronics (6) are configured to detect values of an output signal (9) of the connected sensor (5) continuously or in temporal intervals, and after completion of a predefined time, to automatically set a measurement range of the sensor (5) based on the detected values.

Claims

1. An electromotorically driven pump comprising:

at least one sensor providing at least one output signal; and

control electronics connected to the at least one sensor and configured to detect values of the at least one output signal of the at least one connected sensor, in a continuous manner or in temporal intervals, and after completion of a predefined time, to automatically set a measurement range of the sensor on the basis of the detected values.

2. A pump according to claim 1, wherein the control electronics are configured to automatically examine and adapt the measurement range of the at least one sensor in predefined time intervals, on the basis of the values which are detected in a time interval.

3. A pump according to claim 2, wherein the control electronics are configured to carry out another setting of the measurement range, when the values detected in a preceding time interval lie at a lower limit of the set measurement range or lie at an upper limit of the set measurement range, for a summed time duration of more than 5% to 25% of the time interval.

4. A pump according to claim 1, wherein the control electronics are configured to register the connected sensor, automatically or by way of an external data input.

5. A pump according to claim 1, wherein the control electronics are configured for automatically determining a type of the sensor, or determining an identification characterisation of the sensor or determining a current measurement range of the sensor or determining any combination of a type of the sensor, an identification characterisation of the sensor and a current measurement range of the sensor.

6. A pump according to claim 1, wherein the control electronics are configured to adapt an amplification of the sensor signal in accordance with the set measurement range.

7. A pump according to claim 1, wherein the control electronics are configured to adapt an offset (11) of the sensor signal in accordance with the set measurement range.

8. A pump according to claim 1, wherein the pump is a metering pump.

9. A pump according to claim 1, wherein the pump is a centrifugal pump, in particular a wet-running centrifugal pump.

10. A pump according to claim 1, wherein the control electronics comprises a closed-loop control and that the sensor is provided for detecting a control variable.

11. A pump according to claim 1, wherein the control electronics are configured for the wireless input of sensor parameters.

12. A pump according to claim 11, wherein the control electronics comprise means for wireless data communication and can be set by way of a wirelessly connected input appliance.

13. A pump according to claim 12, wherein the input appliance is a smartphone or tablet computer, on which a software program is installed, via which a data communication with the control electronics of the pump is effected.

14. A pump according to claim 13, wherein the software program comprises a dialogue query for input of data concerning a facility, said data being necessary for the operation of the sensor.

15. A pump according to claim 1, wherein the sensor is a pressure sensor.

16. A pump according to claim 1, wherein the sensor is a temperature sensor.