CN2518200Y - Special energy saving transformer of walking beam type pumping unit - Google Patents
Special energy saving transformer of walking beam type pumping unit Download PDFInfo
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- CN2518200Y CN2518200Y CN 01263830 CN01263830U CN2518200Y CN 2518200 Y CN2518200 Y CN 2518200Y CN 01263830 CN01263830 CN 01263830 CN 01263830 U CN01263830 U CN 01263830U CN 2518200 Y CN2518200 Y CN 2518200Y
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- transformer
- pumping unit
- circuit breaker
- beam pumping
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Abstract
The utility model relates to an energy-economic transformer special for a beam type pumping unit. The utility model can reach the best match between a beam type pumping unit and an electric motor, the electric motor and a transformer, therefore greatly saving energy and reducing consumption. The energy-economic transformer special for the beam type pumping unit has the ultimate advantages that the capacity of the originally equipped power supply transformer and the power of the originally equipped electric motor can be reduced by more than 30 percent at the same time, therefore the energy saving and the consumption reducing effects are remarkable, and the application is safe and convenient.
Description
The utility model relates to the electric power converting equipment, particularly a kind of beam pumping unit energy-saving transformer.
At present, in the petroleum industry oil production equipment, the widespread usage beam pumping unit, because of the needs of its starting and operation, in the configuration of motor and transformer, the problem of ubiquity " low load with strong power ".Tracing it to its cause, mainly is that because of its very big lazy, inertia, motor starting is very difficult, thereby causes the hurried decline of Circuit Fault on Secondary Transformer voltage when the starting beam pumping unit.Because " motor starting torque and its supply voltage square be directly proportional ", so motor starting torque meeting is die-offed because of the hurried decline of Circuit Fault on Secondary Transformer voltage, motor is in approximate stall state, its starting current is huge to be increased, and make supply voltage drop by a larger margin, this vicious circle make equipment can't enter operate as normal.For example: the transformer of employing 50KVA provides electrical source of power for the motor of 37KW, and beam pumping unit when entering normal operating condition, generally only needs the power about 10--22Kw after starting, so the load factor of motor and transformer is on the low side, the waste electric energy.
The utility model provides a kind of beam pumping unit energy-saving transformer at above-mentioned the deficiencies in the prior art, makes between beam pumping unit and the motor, reaches the optimum Match of power between motor and the transformer, and is significantly energy-saving and cost-reducing.
The utility model is achieved through the following technical solutions: beam pumping unit energy-saving transformer is made up of oil immersed type voltage regulating transformer, circuit breaker, mechanical type interlock and the sensing watch-dog etc. of the tap of a kind of secondary side band.The first side winding of voltage regulating transformer is identical with common transformer, is provided with the No-load changer shunting switch, primary side incoming transport three-phase 6000V, and secondary side three phase windings are respectively set up a tap, both 400V, 480V.Adopt two circuit breakers throw, cut two groups of different voltages of 400V, 480V power supply, and with two circuit breakers of a cover mechanical type interlock driving, with the reliability of guaranteeing to control.The sensing watch-dog can accurately be monitored the motor power voltage of circuit breaker output, and control mechanical type interlock drives two circuit breakers, the supply voltage of conversion beam pumping unit energy-saving transformer output.When the starting motor of beam-pumping unit, motor drags the heavy load slow start and the hurried increase of starting current, thereby force the hurried decline of supply voltage, when reducing to the predefined minimum voltage controlling value of sensing watch-dog, the sensing watch-dog will promptly be controlled the mechanical type interlock at first turn-offs control 400V output in moment normal voltage circuit breaker, drop into the boost voltage circuit breaker of control 480V output immediately, make motor power voltage reach 480V, because motor starting pressure drop, the voltage of 480V also drops to about 380V, so just guarantee the specified starting torque of motor under rated voltage, guaranteed to start smoothly beam pumping unit.When beam pumping unit will enter normal operating condition through starting, the supply voltage of motor gos up rapidly, when going back up to the predefined ceiling voltage controlling value of sensing watch-dog, the sensing watch-dog will promptly be controlled the mechanical type interlock at first turn-offs control 480V output in moment boost voltage circuit breaker, drop into the normal voltage circuit breaker of control 400V output immediately, make motor power voltage reach 400V, through above-mentioned automatic control process, make the beam type oil pumping enter normal operation.Here particularly point out, the mechanical type interlock can adopt the regular product of existing electromagnetic drive type on the domestic market and the sensing controler supporting with it, and can not adopt motor driven formula product, because motor driven formula execution speed is fast not as the electromagnetic drive type execution speed.When above-described two circuit breakers switch under the control of mechanical type interlock, motor power meeting instant cut-off, but because motor is when instant cut-off, still at high speed rotating, the induced electromotive force that himself produces has just in time replenished the outage of moment in moment, so the instant cut-off of power supply can't influence the operate as normal of motor and control apparatus thereof.
Great advantage of the present utility model is: can make the capacity of existing beam pumping unit supply transformer reduce 40%, can make the motor power (output) of the beam pumping unit configuration of using beam pumping unit energy-saving transformer-supplied reduce 20% simultaneously.And beam pumping unit, motor and beam pumping unit energy-saving transformer can both as safe as a house, normally operations reliably.For example: a beam pumping unit was the 37KW motor power supply of its configuration with the transformer of a 50KVA originally, if adopt beam pumping unit energy-saving transformation, only need supply transformer with the 50KVA that disposes with regard to replaceable former machine of a 30KVA, meanwhile also the motor of available 28--30KW is replaced the 37KW motor of former machine configuration, and can guarantee the ordinary production of oil well.In sum, through conservative measuring and calculating, the beam pumping unit energy-saving transformer of a 30KVA, can make every mouthful oil well year energy-conservation consumption reduction, amount to RMB 5000--80000 unit.
Further specify below in conjunction with accompanying drawing.
Accompanying drawing 1 is a beam pumping unit energy-saving transformer circuit principle schematic, and accompanying drawing 2 is oil immersed type voltage regulating transformer circuit diagrams.
Accompanying drawing is explained: 1. beam pumping unit energy-saving transformer; 2. oil immersed type voltage regulating transformer; 3. boost voltage circuit breaker; 4. normal voltage circuit breaker, 5. mechanical type interlock, 6. sensing watch-dog; 7. control the protection switch cabinet; 8. motor, 9. beam pumping unit, 10. No-load changer shunting switch.
Beam pumping unit energy-saving transformer (1) as shown in Figure 1, the internal circuit of its oil immersed type voltage regulating transformer (2) is seen shown in the accompanying drawing 2.Its first side winding is identical with common transformer, is provided with No-load changer shunting switch (10), so that adjust the output voltage of transformer at the high pressure primary side.Primary side goes into to exchange three-phase 6000V from the A.B.C termination, and secondary side three phase windings are respectively set up a tap, wherein: a.b.c end output 480V voltage, a ' .b ' .c ' end output 400V voltage.A ' .b ' .c ' end is connected on respectively on the input terminal of normal voltage circuit breaker (4), and the a.b.c. end is connected on respectively on the input terminal of boost voltage circuit breaker (3).Behind 6 outlet terminals of normal voltage circuit breaker (4) and boost voltage circuit breaker (3) " with being in parallel "; draw three power supply phase lines; the input of access control protection switch cabinet (7); its output is connected on the supply terminals of motor (8); motor (8) connects beam pumping unit (9) with driving-belt, for it provides power.
Three sensing elements of sensing watch-dog (6) are set in boost voltage circuit breaker (3), 6 outlet terminals of normal voltage circuit breaker (4) are with on three power supply phase lines of drawing after being in parallel, its detected relative voltage value is sent into sensing watch-dog (6), sensing watch-dog (6) is according to predefined the highest, the minimum voltage controlling value, the power supply of controlling two built-in electromagnet coils of mechanical type interlock (5) by the program of setting respectively is logical, disconnected, thus make mechanical type interlock (5) interlock boost voltage circuit breaker (3) and normal voltage circuit breaker (4) realize and finish the conversion of supply voltage.Control protection switch cabinet (7) is the equipment of the former configuration of oil pumper; use it as routine is controlled motor (8); promptly convenient, the overcurrent that can monitor, prevent motor (9) and beam pumping unit energy-saving transformer (1) again and scarce (breaking) mutually, thereby guarantee the safety of electric equipment.
If open beam pumping unit (9); at first need be with controlling protection switch cabinet (7) starting motor (8); motor (8) begins to drag beam pumping unit (9); under heavy load; instantaneous 7--10 times of reaching the running current value of the starting current of motor (8); so hurried decline of 400V supply voltage of beam pumping unit energy-saving transformer (1) output; when reducing to the predefined minimum voltage controlling value of sensing watch-dog (6) (300V); sensing watch-dog (6) will promptly be controlled mechanical type interlock (5) at first turn-offs control 400V output in moment normal voltage circuit breaker (4); drop into the boost voltage circuit breaker (3) of control 480V output immediately; make the supply voltage of motor (8) reach 480V; because the starting pressure drop of motor (8); the voltage of 480V is reduced to about 380V again; so just guarantee the specified starting torque of motor (8) under rated voltage, guaranteed to start smoothly beam pumping unit (9).When beam pumping unit (9) through starting and will enter normal operating condition the time, the supply voltage of motor (8) gos up rapidly, when going back up to the predefined ceiling voltage controlling value of sensing watch-dog (6) (390V), sensing watch-dog (6) will promptly be controlled mechanical type interlock (5) at first turn-offs control 480V output in moment boost voltage circuit breaker (3), drop into the normal voltage circuit breaker (4) of control 400V output immediately, make the supply voltage of motor (8) roll back 400V, because motor (8) work pressure drop, the voltage of 400V can guarantee more than 380V fully, through above-mentioned automatic control process, make the beam type oil pumping enter normal operation.In sensing watch-dog (6) and the mechanical type interlock (5); all be provided with anti-jamming circuit and mechanical type locking device; to prevent mechanical type interlock (5) malfunction; can also prevent from simultaneously to enter the normal postrun problem such as switching of changing again through starting because of mains fluctuations may cause motor (8); guarantee that beam pumping unit energy-saving transformer (1) is under the control of control protection switch cabinet (7); can only be after cutting off motor (8) power supply; could provide startup power supply for motor (8) once more, thereby circulate above-mentioned starting sequence.
The primary side of the oil immersed type voltage regulating transformer (2) of beam pumping unit energy-saving transformer (1) can be selected according to oil well electric power system electric pressure, as: select 6.0KV, 6.3KV, 10KV or 35KV all can.The rated voltage of oil immersed type voltage regulating transformer (2) secondary side output can be selected 380V, 600V or 1140V according to user's needs.When the secondary side voltage of oil immersed type voltage regulating transformer (2) is chosen in 1000V when above, boost voltage circuit breaker (3) and normal voltage circuit breaker (4) should be selected vacuum-type electrical device for use.
Circuit breaker (3.4), mechanical type interlock (5) and sensing watch-dog (6) can both have been bought supporting, the regular product of producer on the market at home, so in the above description, no longer describe in detail.
The boost voltage circuit breaker (3) and the normal voltage circuit breaker (4) of beam pumping unit energy-saving transformer (1) also can adopt A.C. contactor or thyristor.According to the silicon controlled characteristic, can implement the technical scheme that continuously smooth is adjusted simultaneously to the supply voltage of oil immersed type voltage regulating transformer (2) secondary side output.
Claims (5)
1. beam pumping unit energy-saving transformer is the oil immersed type voltage regulating transformer by the tap of a kind of secondary side band, circuit breaker, compositions such as mechanical type interlock and sensing watch-dog, the first side winding of voltage regulating transformer is identical with common transformer, be provided with the No-load changer shunting switch, secondary side three phase windings are respectively set up a tap, adopt two circuit breakers to throw, cut two groups of different voltages power supply, and drive two circuit breakers with a cover mechanical type interlock, with the reliability of guaranteeing to control, the sensing watch-dog can accurately be monitored the motor power voltage of circuit breaker output, and control mechanical type interlock drives two circuit breakers, the supply voltage of conversion beam pumping unit energy-saving transformer output.
2. want 1 described beam pumping unit energy-saving transformer by right, it is characterized in that secondary side three phase windings of oil immersed type voltage regulating transformer (2) are respectively set up a tap, wherein: a.b.c end output 480V voltage, a ' .b ' .c ' end output 400V voltage.A ' .b ' .c ' end is connected on respectively on the input terminal of normal voltage circuit breaker (4), a.b.c. end is connected on the boost voltage circuit breaker respectively (on 30 the input terminal, 6 outlet terminals of normal voltage circuit breaker (4) and boost voltage circuit breaker (3) are drawn three power supply phase lines with after being in parallel, and supply with motor (8) and make power supply.
3. want 1 described beam pumping unit energy-saving transformer by right, oil immersed type voltage regulating transformer (2) primary side that it is characterized in that beam pumping unit energy-saving transformer (1) can be selected according to oil well electric power system electric pressure, select 6.0KV, 6.3KV, 10KV or 35KV all can, the secondary side voltage of oil immersed type voltage regulating transformer (2) can be selected 380V, 600V or 1140V according to user's needs
4. want 1 described beam pumping unit energy-saving transformer by right, it is characterized in that being chosen in 1000V when above when oil immersed type voltage regulating transformer (2) secondary side voltage, boost voltage circuit breaker (3) and normal voltage circuit breaker (4) should be selected vacuum-type electrical device for use.
5. want 1 described beam pumping unit energy-saving transformer by right, it is characterized in that boost voltage circuit breaker (3) and normal voltage circuit breaker (4) also can adopt A.C. contactor or thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263830 CN2518200Y (en) | 2001-09-12 | 2001-09-12 | Special energy saving transformer of walking beam type pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263830 CN2518200Y (en) | 2001-09-12 | 2001-09-12 | Special energy saving transformer of walking beam type pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2518200Y true CN2518200Y (en) | 2002-10-23 |
Family
ID=33671294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01263830 Expired - Fee Related CN2518200Y (en) | 2001-09-12 | 2001-09-12 | Special energy saving transformer of walking beam type pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2518200Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820846A (en) * | 2011-06-10 | 2012-12-12 | 大庆油田有限责任公司 | Energy saving control system for pumping unit motor |
| CN104506100A (en) * | 2014-11-27 | 2015-04-08 | 国家电网公司 | Agricultural well transformer zero-load switching loss-reducing apparatus |
-
2001
- 2001-09-12 CN CN 01263830 patent/CN2518200Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820846A (en) * | 2011-06-10 | 2012-12-12 | 大庆油田有限责任公司 | Energy saving control system for pumping unit motor |
| CN104506100A (en) * | 2014-11-27 | 2015-04-08 | 国家电网公司 | Agricultural well transformer zero-load switching loss-reducing apparatus |
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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 |