CN206221222U - Submersible pump energy-saving and frequency-variable integrated test system - Google Patents
Submersible pump energy-saving and frequency-variable integrated test system Download PDFInfo
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- CN206221222U CN206221222U CN201620828242.4U CN201620828242U CN206221222U CN 206221222 U CN206221222 U CN 206221222U CN 201620828242 U CN201620828242 U CN 201620828242U CN 206221222 U CN206221222 U CN 206221222U
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Abstract
The utility model belongs to water pump detection technique field, more particularly to a kind of submersible pump energy-saving and frequency-variable integrated test system.The utility model is connected with the input of water way unit by the output end of water source unit, and the water side of water way unit is connected with the water intake end of water pump, and the power input of water pump is connected with the output end of frequency conversion experiment power supply；The control end of water way unit is connected with the output end of control unit；Pressure test unit is connected with the measurement end of flow test units with water way unit, and pressure test unit is connected with the signal output part of flow test units with the signal input part of data acquisition unit.The utility model is using frequency conversion experiment power supply by changing speed and then realizing the regulation of flow, under the test situation of same flow, originally consumption can just be avoided in the power of valve, process of the test electric energy loss can be saved, has the advantages that frequency control effect is good, energy-saving effect is notable, safe and reliable.
Description
Technical field
The utility model belongs to water pump detection technique field, more particularly to a kind of submersible pump energy-saving and frequency-variable integration test system
System.
Background technology
Submersible pump refers to pump housing impeller and drives the motor of impeller all to pull the plug a kind of water pump of work have deep-well to use
With the scope of operation with two kinds.With the fast development of electromechanical integration technology, new measuring technology and means of testing constantly push away it is old go out
Newly so that detection means, detection method and testing equipment also there occurs change property change, form automation, real time implementation and
Intelligentized detecting system.Microelectronics, information technology and modern control theory have extensive utilization in every field.Diving
The measuring technology and means of testing of electric pump constantly improve, and it is core intelligence to have gradually formed with industrial computer and variable-frequency control technique
Energyization, the checking system of real time implementation.
Utility model content
For above-mentioned the shortcomings of the prior art, it is comprehensive that the utility model provides a kind of submersible pump energy-saving and frequency-variable
Close test system.Its purpose is to provide it is a kind of have that rational in infrastructure, frequency control effect is good, energy-saving effect significantly, safety
Reliable integrated test system.The automation and intellectuality of water pump checkout procedure are realized, while avoiding the waste of energy.
In order to realize above-mentioned utility model purpose, the utility model is achieved through the following technical solutions：
Submersible pump energy-saving and frequency-variable integrated test system, is the input phase of output end by water source unit and water way unit
Connection, the water side of water way unit is connected with the water intake end of water pump, the power input of water pump and frequency conversion experiment power supply it is defeated
Go out end to be connected；
The control end of water way unit is connected with the output end of control unit；Pressure test unit and flow test units
Measurement end is connected with water way unit, and the signal output part of pressure test unit and flow test units is and data acquisition list
The signal input part of unit is connected；
Slip test cell, voltage tester unit are connected with the test lead of testing current unit with water pump, and slip is surveyed
Examination unit, voltage tester unit are connected with the signal output part of testing current unit with the signal input part of data acquisition unit
Connect, the signal output part of data acquisition unit is connected with the signal input part of control unit, the communication interface of industrial computer
It is connected by serial ports with the communication interface of control unit；The control end of frequency conversion experiment power supply and the signal output part of control unit
It is connected.
The control end of the water way unit is magnetic valve.
In order to achieve the above object, the utility model proposes a kind of submersible pump energy-saving and frequency-variable integrated test system, this is
System is by water source unit, water way unit, pressure test unit, flow test units, slip test cell, voltage tester unit, electricity
Current test unit, data acquisition unit, industrial computer, control unit, frequency conversion experiment power supply and water pump composition, wherein water source list
The output end of unit is connected with the input of water way unit, and the control end of water way unit is the output end of magnetic valve and control unit
It is connected, pressure test unit is connected with the measurement end of flow test units with water way unit, pressure test unit and flow
The signal output part of test cell is connected with the signal input part of data acquisition unit, slip test cell, voltage tester list
Unit is connected with the test lead of testing current unit with water pump, slip test cell, voltage tester unit and testing current unit
Signal output part be connected with the signal input part of data acquisition unit, the signal output part of data acquisition unit and control
The signal input part of unit is connected, and the communication interface of industrial computer is connected with the communication interface of control unit by serial ports
Connect, the control end of frequency conversion experiment power supply is connected with the signal output part of control unit, the output end and water of frequency conversion experiment power supply
The power input of pump is connected.
The function of submersible pump energy-saving and frequency-variable integrated test system each part is described as follows：Water source unit has confession
Experiment enough capacity water and good water circulation system, can be smoothed out offer water source, while having water level for experiment
Regulatory function；Water way unit is made up of the pipeline and electrically operated valve of six different-diameters, realizes the water circulation and pressure of process of the test
Power is adjusted；Pressure test unit, flow test units, slip test cell, voltage tester unit, testing current unit collection ore deposit
With the pressure of water pump, flow, slip, voltage and current initial data；It is single that initial data is converted into control by data acquisition unit
The recognizable signal of unit, realize secondary meter gathered data and control unit can receive signal between conversion；Control unit and
Variable-frequency power sources is the core of whole system, realizes whole pilot system control instruction output, the treatment of test data and experiment work
Condition dynamic regulation；Industrial computer completes TD input, test data analyzer treatment, the fitting of trial curve and system ginseng
The display and storage of number and result of the test.
The utility model has the following advantages that and beneficial effect compared with the prior art：
Traditional pump capacity adjusts process by the way of Valve controlling, and the resistance of ducting becomes when this control mode is controlled
Greatly, substantial amounts of energy waste is caused.Submersible pump energy-saving and frequency-variable integrated test system is using frequency conversion experiment power supply by changing speed
The regulation of flow is spent and then realizes, under the test situation of same flow, originally consumption can just be avoided in the power of valve, energy
Enough save process of the test electric energy loss.
Water pump for mining characteristic energy-saving and frequency-variable inspection and detection system is according to " GB/T 12785《Submersible pump test method》" and
“GB/T 3216《1 grade and 2 grades of rotary motive power pump hydraulic performance acceptance test》" standard requirement, complete different size water pump raise
The detection experiment of the combination properties such as journey, flow, efficiency, power, with rational in infrastructure, frequency control effect is good, energy-saving effect significantly,
Safe and reliable the advantages of.
Below in conjunction with the accompanying drawings and specific embodiment, the technical solution of the utility model is described in detail.
Brief description of the drawings
Fig. 1 is water pump for mining characteristic energy-saving and frequency-variable inspection and detection system structure chart；
Fig. 2 is control unit and industrial computer communication interface circuit；
H-Q relation curves in Fig. 3 pilot system speed regulation processes.
In figure：Water source unit 1, water way unit 2, water pump 3, frequency conversion experiment power supply 4, pressure test unit 5, flow rate test list
Unit 6, slip test cell 7, voltage tester unit 8, testing current unit 9, data acquisition unit 10, control unit 11, industry
Computer 12.
Specific embodiment
The utility model is a kind of submersible pump energy-saving and frequency-variable integrated test system, and its structure is as shown in figure 1, control unit
With industrial computer communication interface circuit as shown in Fig. 2 H-Q relation curves are as shown in Figure 3 in pilot system speed regulation process.
Submersible pump energy-saving and frequency-variable integrated test system is by water source unit 1, water way unit 2, pressure test unit 5, flow
Test cell 6, slip test cell 7, voltage tester unit 8, testing current unit 9, data acquisition unit 10, industrial computer
12nd, control unit 11, frequency conversion experiment power supply 4 and water pump 3 are constituted, wherein the input of the output end of water source unit 1 and water way unit 2
End is connected, and the water side of water way unit 2 is connected with the water intake end of water pump 3, and the power input of water pump 3 and frequency conversion experiment are electric
The output end in source 4 is connected.
The control end i.e. magnetic valve of water way unit 2, the output end with control unit 11 are connected, pressure test unit
5 are connected with the measurement end of flow test units 6 with water way unit 2, the letter of pressure test unit 5 and flow test units 6
Number output end is connected with the signal input part of data acquisition unit 10, slip test cell 7, voltage tester unit 8 and electricity
The test lead of current test unit 9 is connected with water pump 3, slip test cell 7, voltage tester unit 8 and testing current unit 9
Signal output part be connected with the signal input part of data acquisition unit 10, the signal output part of data acquisition unit 10 and
The signal input part of control unit 11 is connected, and the communication interface of industrial computer 12 and the communication interface of control unit 11 pass through
Serial ports is connected, and the control end of frequency conversion experiment power supply 4 is connected with the signal output part of control unit 11, frequency conversion experiment power supply 4
Output end be connected with the power input of water pump 3.
The function of submersible pump energy-saving and frequency-variable integrated test system each part is described as follows：Water source unit 1 has
Be for experiment enough capacity water and good water circulation system, offer water source can be smoothed out for experiment, while having water
Position regulatory function；Water way unit 2 is made up of the pipeline and electrically operated valve of six different-diameters, realize process of the test water circulation and
Pressure is adjusted；Pressure test unit 5, flow test units 6, slip test cell 7, voltage tester unit 8, testing current unit
Pressure, flow, slip, the voltage and current initial data of 9 collection water pump for mining 3；Data acquisition unit 10 turns initial data
Change the recognizable signal of control unit 11 into, realize that secondary meter gathered data and control unit 11 can receive turning between signal
Change；Control unit 11 and frequency conversion experiment power supply 4 are the core of whole system, realize whole pilot system control instruction output, examination
Test treatment and the operating condition of test dynamic regulation of data；The completion TD of industrial computer 12 is input into, test data analyzer is processed,
The fitting of trial curve and the display and storage of systematic parameter and result of the test.
Traditional pump capacity adjusts process by the way of Valve controlling, and the resistance of ducting becomes when this control mode is controlled
Greatly, substantial amounts of energy waste is caused.And the utility model submersible pump energy-saving and frequency-variable integrated test system tests electricity using frequency conversion
Source by changing speed and then realizing the regulation of flow, under the test situation of same flow, original power of the consumption in valve
Can just avoid, process of the test electric energy loss can be saved.
Illustrated with reference to Fig. 3：During conventional valves Control experiment, when flow needs to be reduced to Q2 from Q1,
Valve must be turned down, now valve frictional resistance will become big, and resistance curve moves on to R2 from R1, and lift then rises to H2 from H1, fortune
Row operating point moves on to N points from M points.During carrying out Flow-rate adjustment using frequency conversion experiment power supply, when flow needs to be reduced to from Q1
Q2, N2 is dropped to by speed from Nl, and running operating point then moves on to O points from M points, and lift drops to H3 from H1, due to resistance curve R1
Constant, the energy of pilot system consumption is constant.
Characteristic curve formula according to centrifugal pump:
P=Q1Hr/102η (l)
In formula:P-water pump applying working condition shaft power (kW)；
The hydraulic pressure or flow (m3/s) of Q-applying working condition point；
The lift (m) of H-applying working condition point；
R-output medium bulk density (kg/m3)；
The efficiency of pump (%) of η-applying working condition point.
The shaft power that the shaft power and O point pumps for operating in N point pumps can be obtained is respectively:
PN=Q2H1r/102η (2)
PO=Q2H2r/102η (3)
Both difference is:
Δ ρ=PN-PO=Q2(H1-H2)r/102η (4)
That is, when carrying out flow with conventional valves control mode, there is △ P power to be slatterned by valve resistance loss
, and diminishing with flow, valve is constantly turned down, and this loss will also increase.And when flow control is carried out with variable-frequency power sources,
According to the relation between flow Q, lift H, power P and rotating speed N, have:
Understand that flow Q is directly proportional to the first power of rotating speed N according to formula (5)；Lift H and rotating speed N's square is directly proportional；
Power P and rotating speed N's cube is directly proportional, i.e., power declines with rotating speed into the relation of 3 powers.If not with the side for turning down valve
Method, and when carrying out Flow-rate adjustment using variable-frequency power sources, then under the test situation of same flow, originally consume the work(in valve
Rate can just be avoided, so that the energy-saving effect of MNO area sizes in Fig. 3 is obtained, here it is pump speed control energy-saving principle.
Submersible pump energy-saving and frequency-variable integrated test system is according to " GB/T 12785《Submersible pump test method》" and " GB/T
3216《1 grade and 2 grades of rotary motive power pump hydraulic performance acceptance test》" standard requirement, complete pump head, the stream of different size
The detection experiment of the combination properties such as amount, efficiency, power, with frequency control effect it is good, energy-saving effect is notable, safe and reliable etc. excellent
Point.
Claims (2)
1. submersible pump energy-saving and frequency-variable integrated test system, it is characterized in that：Water source unit（1）Output end and water way unit（2）
Input be connected, water way unit（2）Water side and water pump（3）Water intake end be connected, water pump（3）Power input
With frequency conversion experiment power supply（4）Output end be connected；
Water way unit（2）Control end and control unit（11）Output end be connected；Pressure test unit（5）And flow rate test
Unit（6）Measurement end and water way unit（2）It is connected, pressure test unit（5）And flow test units（6）Signal it is defeated
Go out to hold equal and data acquisition unit（10）Signal input part be connected；
Slip test cell（7）, voltage tester unit（8）With testing current unit（9）Test lead and water pump（3）It is connected
Connect, slip test cell（7）, voltage tester unit（8）With testing current unit（9）Signal output part and data acquisition list
Unit（10）Signal input part be connected, data acquisition unit（10）Signal output part and control unit（11）Signal input
End is connected, industrial computer（12）Communication interface and control unit（11）Communication interface be connected by serial ports；Frequency conversion
Experiment power supply（4）Control end and control unit（11）Signal output part be connected.
2. submersible pump energy-saving and frequency-variable integrated test system according to claim 1, it is characterized in that：The water way unit
（2）Control end be magnetic valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620828242.4U CN206221222U (en) | 2016-07-29 | 2016-07-29 | Submersible pump energy-saving and frequency-variable integrated test system |
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| CN201620828242.4U CN206221222U (en) | 2016-07-29 | 2016-07-29 | Submersible pump energy-saving and frequency-variable integrated test system |
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| CN206221222U true CN206221222U (en) | 2017-06-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089674A (en) * | 2016-07-29 | 2016-11-09 | 国网辽宁省电力有限公司电力科学研究院 | Submersible pump energy-saving and frequency-variable integrated test system |
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- 2016-07-29 CN CN201620828242.4U patent/CN206221222U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089674A (en) * | 2016-07-29 | 2016-11-09 | 国网辽宁省电力有限公司电力科学研究院 | Submersible pump energy-saving and frequency-variable integrated test system |
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