CN2234000Y - Energy-saving box for oil pump machine - Google Patents
Energy-saving box for oil pump machine Download PDFInfo
- Publication number
- CN2234000Y CN2234000Y CN 95226124 CN95226124U CN2234000Y CN 2234000 Y CN2234000 Y CN 2234000Y CN 95226124 CN95226124 CN 95226124 CN 95226124 U CN95226124 U CN 95226124U CN 2234000 Y CN2234000 Y CN 2234000Y
- Authority
- CN
- China
- Prior art keywords
- motor
- normally
- oil pump
- power supply
- closed contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an energy-saving box for oil pump machines, which not only can meet the peak load of the oil pump machine at the time of starting, but also can cause a motor to run in the state of full load or near full load when the oil pump machine runs to reasonably and sufficiently use the electrical energy. The utility model is characterized in that the motor can automatically regulate reactive exciting current following the quantity change of the operation and (load) of the oil pump machine. The utility model has the advantages that capacitance can be directly compensated to electricity consumption equipment; the reactive current sucked by the motor from a power supply can be reduced; a large quantity of unnecessary reactive electricity consumption can be reduced; the power factor can be increased; obvious energy saving effect can be achieved. Tested by a technique monitoring department, under the same load, the current is reduced by 17.3A, the reactive power is saved by 65 %, and the power factor of the motor is raised by 0.355.
Description
Oil pump energy-saving case of the present utility model is the control device of electric motor that is used for the oilfield exploitation pumping unit.
In the prior art, power supply is connected with motor by electrical equipment such as automatic air-break switch or contactors, and the method that directly makes motor starting and running is triangle (Δ).This method of operation just plays a role when motor starting, and operation back motor is in operation under light load (being about about the 60%) state always.The Main Ingredients and Appearance of electric current is in order to setting up the idle field current in magnetic field in the motor, thereby the shortcoming of this operation method is that the reactive power consumption electric weight is big, and power factor is low, and power equipment can not make full use of, and waste of energy is big.
The purpose of this utility model is that the circle characteristics of load variations of the mechanical property of motor and pumping unit fortune are combined, the maximum load of motor operation torque and pumping unit is complementary, motor is at full capacity or near full load condition moves down, reach the purpose of saving power.
The utility model is design like this: the oil pump energy-saving case mainly is made up of casing and control panel, and the circuit of control panel comprises main line and control wiring.Main line routing switch ZK, contactor QC, SC, YC and thermorelay JR and capacitor C are formed, and they connect with 6 end points of three phase windings of motor D respectively.Control wiring is by fus RD
c, RD
b, start button QA stops knob TA, coil QC
2, SC
2, YC
2, normally-closed contact YC
1, SC
1, normally opened contact YC
3, QC
1, operation knob SA, thermal relay normally closed contact JR
1Form.The identical fus RD of power supply C
cAn end connect RD
cThe other end with thermal relay normally closed contact JR
1Connect JR
1The other end connecting coil QC
2, SC
2, YC
2, coil SC
2With normally-closed contact YC
1, operation knob SA polyphone connects coil YC
2With normally-closed contact SC
1Operation knob polyphone connects normally opened contact YC
3With operation knob SA parallel connection, start button QA and normally opened contact QC
1Parallel connection, their end connects QC simultaneously
2, SA, YC
3, the other end connection stops knob TA, with fus RD
bThe formation loop is connected with power supply B.The power supply of control wiring also can be connected in A, B two-phase or A, the C two-phase power supply circuit.During work, power turn-on switch ZK presses start button QA, contactor QC and SC adhesive simultaneously, the main contact closure, motor starting treats that rotating speed tends to just often press operation knob SA again, at this moment cut off contactor SC control loop, connected contactor YC control loop, made motor rotation.Because the Magnetic flux density in the iron core is reduced to original
Idle field current obviously reduces, and motor still normally moves in the rated current scope, has reached the purpose of saving power.The utility model also drops into main circuit (reactive-load compensation during the motor operation according to low pressure dispersion compensation way with capacitance compensation parallel connection simultaneously, when withdrawing from, motor stall electric capacity reliably discharges) by motor windings, directly like this give motor with reactive-load compensation, reduce motor and draw wattless current, increased a kind of conservation measures again from power supply.
The utility model has following advantage:
1, this Energy-saving box energy-saving effect is obvious, maximum load when it can satisfy the pumping unit starting, motor is at full capacity or near under the full load condition to be moved, sufficiently and reasonably utilized electric energy, and can make motor change size and regulate required wattless power automatically and incorporate electric capacity into main circuit along with the pumping unit operating load, consumer is directly arrived in reactive-load compensation, reduces motor and draws wattless current from power supply.So it has reduced a large amount of unnecessary non-power consumptions, has improved power factor, reaches obvious energy-saving effect.Through the test of technical monitoring department, electric current reduces 17.3A under same load, and wattless power saves 65%, and the motor power (output) factor has improved 0.355.
2, this Energy-saving box has under-voltage, decompression and overload protection function, and is safe and reliable to operation, simple in structure, convenient operating maintenance.
3, as running into reasons such as down-hole knot is cured, when making load become heavy, start button QA also has the effect of heavy service knob.
4, applied range, this Energy-saving box is applicable to power supply 380V, the corresponding connection of its winding is that Δ/Y motor capacity is the pumping unit use of 45KW.55KW.75KW.
Description of drawings:
Fig. 1: circuit diagram of the present utility model.
Fig. 2: the utility model embodiment 2 control section circuti diagrams.
Fig. 3: the utility model embodiment 3 control section circuti diagrams.
Embodiment 1: the circuit diagram of oil pump energy-saving case as shown in Figure 1, it mainly is made up of main line and control wiring.Main line is made up of contactor QC, SC, YC and thermorelay JR and capacitor C, and they connect with 6 end points of three phase windings of motor D respectively.Control wiring is by fus RD
c, RD
b, starting button QA, stop button TA, coil QC
2, SC
2, YC
2, normally-closed contact YC
1, SC
1, normally opened contact YC
3, QC
1, operation button SA, thermal relay normally closed contact JR
1Form.Fus RD
cAn end, connect with power supply C, the other end is with thermal relay normally closed contact JR
1Connect JR
1The other end connecting coil QC
2, SC
2, YC
2, coil SC
2With normally-closed contact YC
1, operation knob SA polyphone connects coil YC
2With normally-closed contact SC
1, operation knob SA polyphone connects normally opened contact YC
3, with operation button SA parallel connection, start button QA and normally opened contact QC
1Parallel connection, their end connects QC simultaneously
2, SA, YC
3, the other end connection stopping knob TA, fus RD
bBeing connected with power supply B forms the loop, and present embodiment is manually-operable.
Embodiment 2: the main line figure of present embodiment is identical with embodiment 1, the control section circuti diagram as shown in Figure 2, in control wiring turn-on time relay SJ.Time relay sj is with normally closed interlock YC
3Connect coil SC
2With normally-closed contact YC
1, time relay normally-closed contact SJ
1Series connection, coil QC
2With normally opened contact SC
3Connect coil YC
2With normally-closed contact SC
2, normally opened contact QC
2Series connection, these 4 groups of circuit are connected in parallel, and an end is with thermal relay normally closed contact JR
1Connect, the other end is with starting button QA, normally opened contact QC
1Connect, other line connecting method is with embodiment 1, and present embodiment is operation automatically.
Embodiment 3: Fig. 3 is the control section circuti diagram of present embodiment, and its main line figure is same as embodiment 1.Present embodiment is a circuti diagram manual and that use simultaneously automatically.The characteristics of this circuti diagram are to increase intermediate relay ZJ and throw over switch NK on embodiment 2 basis again.
Claims (1)
1, a kind of oil pump energy-saving case mainly is made up of casing and control panel, the circuit that it is characterized in that control panel comprises main line and control wiring, main line routing switch ZK, contactor QC, SC, YC, thermorelay JR and capacitor C are formed, they connect with 6 end points of three phase windings of motor D respectively, and control wiring is by fus RD
c, RD
b, starting connects and turns round QA, stops knob TA, coil QC
2, SC
2, YC
2, normally-closed contact YC
1, SC
1, normally opened contact YC
3, QC
1, operation knob SA, thermal relay normally closed contact JR
1Form the identical fus RD of power supply C
cAn end connect RD
cThe other end with thermal relay normally closed contact JR
1Connect JR
1The other end connecting coil QC
2, SC
2, YC
2, coil SC
2With normally-closed contact YC
1, operation knob SA polyphone connects coil YC
2With normally-closed contact SC
1, operation button SA polyphone connects normally opened contact YC
3With operation knob SA parallel connection, start button QA and normally opened contact QC
1Parallel connection, their end connects QC simultaneously
2, SA, YC
3, the other end connection stopping knob TA, fus RD
bForm the loop mutually with power supply B, the power supply of control wiring also can be connected in the circuit of A, B two-phase or A, C two-phase power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226124 CN2234000Y (en) | 1995-11-17 | 1995-11-17 | Energy-saving box for oil pump machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226124 CN2234000Y (en) | 1995-11-17 | 1995-11-17 | Energy-saving box for oil pump machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2234000Y true CN2234000Y (en) | 1996-08-28 |
Family
ID=33872347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95226124 Expired - Fee Related CN2234000Y (en) | 1995-11-17 | 1995-11-17 | Energy-saving box for oil pump machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2234000Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023420A (en) * | 2012-12-21 | 2013-04-03 | 北京航空航天大学 | Instantaneous power detection and load identification based induction motor cooperative control system |
-
1995
- 1995-11-17 CN CN 95226124 patent/CN2234000Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023420A (en) * | 2012-12-21 | 2013-04-03 | 北京航空航天大学 | Instantaneous power detection and load identification based induction motor cooperative control system |
| CN103023420B (en) * | 2012-12-21 | 2015-04-22 | 北京航空航天大学 | Instantaneous power detection and load identification based induction motor cooperative control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |