Pumpdosimeter - system and method for automatically controlling fluid parameters in centrifugal pumps

Abstract

The Pumpdosimeter is a method and apparatus for automatically maintaining a desired fluid parameter range at the sensor of a centrifugal pump system to decrease damage to the pump, and includes delivering a second pump dosage to either pipe while repeatedly sequencing through the plurality of sequential pump doses beginning with the first pump dose and proceeding to an adjacent dose in the sequence after a predetermined time interval has elapsed. The pump dosage is delivered until the fluid parameter level at the fluid parameter sensor attains the desirable range, at which point a corresponding pump dose is selected from the plurality of sequential pump doses. The method also includes delivering the selected pump dose so as to maintain the desired fluid parameter range at the fluid parameter sensor site.

1 . A method for maintaining a desired fluid parameter level at the fluid parameter sensor at either pipe of a centrifugal pump extraction system within a predetermined range of sequential values having an upper limit and a lower limit so as to produce a predetermined fluid parameter range to reduce damage to the centrifugal pump, the method being adapted for use with a Pumpdosimeter, including an electronic control unit (ECU) having memory, a fluid parameter sensor near a variably powered electric centrifugal pump controlled by the ECU for delivering selected pump doses, producing fluid parameter doses at the fluid parameter sensor in or on the exit or entrance pipe, the fluid parameter delivery system of the Pumpdosimeter having a plurality of pump and fluid parameter doses ranging from a first dose to a second dose, the method comprising: 
 delivering the second pump dose to the pipe and the second fluid parameter dose to the fluid parameter sensor while repeatedly sequencing through the plurality of sequential P doses beginning with the first dose and proceeding to an adjacent dose in the sequence after a predetermined time interval has elapsed until the fluid parameter sensor attains the desired level at which point a corresponding pump dosage and fluid parameter dosage are selected from the plurality of sequential fluid parameter and pump dosages.    delivering the selected fluid parameter and pump doses so as to maintain the fluid parameter level at the fluid parameter sensor in its desired range.    
   
   
       2 . The method of  claim 1  wherein the current circulation time is determined by: 
 means for storing a predetermined number of base state values in memory; and    means for determining a predetermined sequence of base state levels.    
   
   
       3 . The method of  claim 1  wherein the reaction time is determined by logic flow charts.  
   
   
       4 . The method of  claim 1  wherein solid, liquid, or gas may comprise the fluid parameter.  
   
   
       5 . A method for maintaining a desired fluid parameter level at the fluid parameter sensor at either pipe of a centrifugal pump extraction system within a predetermined range of sequential values having an upper limit and a lower limit so as to produce a predetermined fluid parameter range to reduce damage to the centrifugal pump, the method being adapted for use with a Pumpdosimeter, including an electronic control unit (ECU) having memory, a fluid parameter sensor near a variably powered electric centrifugal pump controlled by the ECU for delivering selected pump doses, producing fluid parameter doses at the fluid parameter sensor in or on the entrance or exit pipes, the fluid parameter delivery system of the Pumpdosimeter having a plurality of pump and fluid parameter doses ranging from a first dose to a second dose, the method comprising: 
 delivering the second pump dose to the pipe and the second fluid parameter dose to the fluid parameter sensor, 
 while repeatedly sequencing through the plurality of sequential pump doses beginning with the first dose and proceeding to an adjacent dose in the sequence after a predetermined time interval has elapsed until the fluid parameter level at the fluid parameter sensor attains the desired level at which point a corresponding pump dosage is selected from the plurality of sequential pump dosages.  
   delivering the selected pump dosage so as to maintain the fluid parameter at the fluid parameter sensor.    
   
   
       6 . The method of  claim 5  wherein the current circulation time is determined by: 
 means for storing a predetermined number of base state values in memory; and    means for determining a predetermined sequence of base state levels.    
   
   
       7 . The method of  claim 5  wherein the reaction time is determined by logic flow charts.  
   
   
       8 . The method of  claim 5  wherein the solid, liquid or gas may comprise the fluid parameter.