SummaryPut forward a kind of strong number through measuring pump to come the exports discharge method of indirect measurement pump, specific introducing the principle that uses rotate speed sensor to measure pump to develop number, gave out the computational type of pump exit discharge.

The pump of reciprocating type slop that artesian well uses, common weighs artesian well " heart " , its main function is the loop below Xiang Jing transports artesian well slurry, the broach in artesian well process broken cuttings is carried from the bottom of a well come out and provide power for drilling tool of power of the power below the well. The exit discharge of pump is a when affect artesian well efficiency important parameter, also be optimization artesian well must actor or actress in craft chosen parameter, the exit of pump gives pressure very tall (be in commonly 20, 25MPa) , and transport the slurry with higher sand content, use common flowmeter to have direct and metric presence to its discharge two problems; It is high pressure sealed problem, 2 it is slop deposit mixes jam problem. Because this is direct and metric relatively difficult.

According to the working principle of reciprocating pump, the liquid volume that its carry inside unit time (already the Q of academic and average discharge of pump manages) the S of piston cut area with pump. . Piston journey length 1, and the piston is planted every minutes the frequency in crock interplanting move back and forth (the strong number that calls pump or pump number) N is concerned. S and I are the structural parameter of pump, to given pump is affirmatory and fixed amount, accordingly, if can measure the N developing number of a pump. Calculable the exit flow that gives pump.

Thematic wordDischarge measures indirect measurement of reciprocating pump of circulation rate of mud

1.Pump develops the measurement of several

Because the rotate speed of the strong number of reciprocating type pump and its drive axis becomes direct ratio, because this can pass the rotate speed conversion that measures its drive axis to give pump,develop number,

The working principle of sensor of 1.1 rotate speed

The rotate speed of pump drive axis uses sensor of Huo Er rotate speed to measure, graph 1 with the graph the 2 structural principles that are sensor of Huo Er rotate speed respectively are mixed hookup.

There are 2 mutual and perpendicular forgive group A and B on the stator of sensor, stick on the central line of winding have Huo Er piece H_AWith H_B, rotor is permanent magnet steel, h of suddenly Er component
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