CN2171701Y - Numerical control wind-power beam-pumping unit - Google Patents

Abstract

The utility model relates to a numerical control wind-power oil-pumping machine, comprising a pylon, an oil-pumping piston, a full-speed numerically controlled rare-earth motor, etc. The utility model is characterized in that the top end of the pylon is provided with a rare earth magneto generator and a wind rotor, a rectifier and a storage battery are arranged, a near standard industrial control interface is connected with a central control computer which can be shared with other measurement and control equipment, and a control adaptation module connected with a bidirectional reversible power supply with variable frequency is inserted in the standard industrial control interface for control. The pylon is added with an energy acquiring and changing mechanism composed of the generator and the wind rotor in order to utilize wind power source in an oil field, and the energy consumption of oil production can be reduced.

Description

Numerical control wind-power beam-pumping unit

A kind of digital-controlled wind power oil pumping unit, it belongs to Petroleum Production equipment, is used for the petroleum production in various oil fields, is specially adapted to the oil recovery in the outlying desert area oil field of power shortage.

In oil development, most of oil recovery wells of old filed have all become the pumping well of can not blowing and will lean on pumping unit to extract.Use oil pumping machine oil pumping, consume a large amount of electric energy.Particularly for the high oil well of some water content, its power consumption is just bigger.As if for the desert, the oil well in oil fields such as shallow sea owing to there is not electrical network to cover, use private station power supply oil pumping, makes cost of winning higher.But (as desert, beach) has a large amount of wind resources to utilize in these areas.

The purpose of this utility model is a kind of digital-controlled wind power oil pumping unit of invention, and it can utilize wind resource to pump, and reduces cost for oil production.

Structure of the present utility model as shown in Figure 1, it has pylon 1, swabs 2, pull bar 3, chain 4, counterweight 5, sprocket wheel 6, full speed rare-earth numerical-control motor 7, bidirectional reversible variable-frequency power sources 8, it is characterized in that: be equipped with rare earth permanent-magnetic generator 9 and wind rotor 10 on the pylon top, between rare earth permanent-magnetic generator 9 and wind rotor 10, speed increaser 11 is arranged, rectifying device 12 is arranged, storage battery 13, the input end of rectifier 12 links to each other with the output terminal of rare earth permanent-magnetic generator 9, its output terminal links to each other with storage battery 13, storage battery also links to each other with bidirectional reversible variable-frequency power sources 8 simultaneously, standard industrial control 15 is arranged near at hand, standard industrial control 15 by the standard serial communication interface with can link to each other with the total central control computer 14 of other measuring and controlling equipment, in standard industrial control 15, be inserted with and link to each other with bidirectional reversible variable-frequency power sources 8 and its control adapter module of controlling 16.

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is an embodiment's linking to each other with electrical network of the utility model a structural representation.

In the utility model, by rare earth permanent-magnetic generator 9, speed increaser 11, wind rotor 10 have constituted energy and have obtained conversion portion.Because wind-force is inconstant, the utility model uses the method for rectifying device 12 rectifications to come storage battery 13 chargings.Therefore it can cancel the complicated mechanical constant velocity system to the frequency no requirement (NR) of generator output.Only, can reduce the size of generator 9 like this with using a simple speed increaser 11 to make rare earth permanent-magnetic generator be operated in the higher rotation speed scope.In the utility model, swabs 2, pull bar 3, chain 4, counterweight 5, sprocket wheel 6, full speed rare-earth motor 7 and bidirectional reversible variable-frequency power sources 8 have constituted the oil recovery part.It is by storage battery 13 power supplies.Adopt central control computer 14, standard industrial control 15 add adaptation module 16 the electromechanical integration control mode.Its oil recovery piston optimal movement curve is by central control computer 14 storages.Adopt the method for timing scan constantly to change the signal value of control bidirectional reversible variable-frequency power sources 8, thereby control the movement velocity of swabs, to reach best pumping efficiency.When central control computer 14 needed to change the movement velocity of swabss 2, central control computer 14 sent by the standard serial communication interface that gating links to each other with bidirectional reversible variable-frequency power sources 8 and to the address gating signal of its control adapter module of controlling 16.Standard industrial control 15 is being received address gating signal backgating control corresponding adaptation module 16.Control adapter module 16 is by behind the gating, central control computer 14 sends the change value of swabs 2 movement velocitys, by control adapter module 16 latch and the D/A conversion after the output frequency of control break bidirectional reversible variable-frequency power sources 8, thereby changed the movement velocity of swabs 2.In swabs 2 descending strokes, the central control computer 14 control bidirectional reversible variable-frequency power sources 8 that can use the same method is in rectification state, and the potential energy of swabs 2 grades is reclaimed to storage battery 13 chargings by NC full-speed motor 7 generating backs.Reach purpose of energy saving.

The utility model adopts and installs additional on pylon by generator, and the energy that wind rotor is formed obtains the method for switching mechanism, and the wind resource of field area is used, and can reduce the oil recovery energy consumption.Because common oil pumping unit also needs higher pylon, therefore generator, wind rotor etc. are positioned over the expense that can reduce independent installation wind rotor, and can take up an area of less.The utility model uses central control computer, and standard industrial control adds this electromechanical integration pattern of adaptation module to be controlled the motion of swabs, can make swabs by the optimal movement curvilinear motion, and best pumping efficiency is arranged.

The utility model can use in the oil field of no mains supply, for overcoming the influence that wind-force changes, it is big that the capacity of storage battery 13 becomes, if when the utility model uses in the oil field of mains supply is arranged, also can adopt in storage battery 13 terminations has another bidirectional reversible variable-frequency power sources 17, and the interchange end of bidirectional reversible variable-frequency power sources 17 links to each other with electrical network.In standard industrial control 15, be inserted with and link to each other with bidirectional reversible variable-frequency power sources 17 and its control adapter module of controlling 18.Input end at battery 13 is connected to voltage measurement element 19, current measurement device 20.In standard industry interface 15, be inserted with and voltage measurement element 19 the measurement adaptation module 21 and 22 that current measurement device 20 links to each other.Be connected with electrical network by increasing, when wind speed is little, its wind-power electricity generation quantity not sufficient is during for oil pumping motor, by the networking supplementary power when wind speed big, the wind-power electricity generation amount is during greater than the needing of oil pumping motor, counter delivering in the electrical network, the use electrical network cushions.

Be connected with in the utility model of bidirectional reversible variable-frequency power sources 17 and measurement module adding with electrical network, central control computer 14 also can adopt same controlling method.Use the method for timing scan, constantly measure the terminal voltage of storage battery 13 and the electric current of inflow (outflow) storage battery 13.Also to be central control computer 14 send the measurement adaptation module 21 that gating links to each other with voltage measurement element 19 or the address gating signal of the measurement adaptation module 22 that links to each other with current measurement device 20 by the standard serial communication interface to the method for measuring.Standard industrial control 15 gatings are measured adaptation module 21 or 22 accordingly.Behind the gating, measure adaptation module 21 or 22 the storage battery 13 terminal voltage values that recorded by voltage measurement element 19 are accordingly sent back to central control computer 15 or current value anti-central control computer 15 of sending back to after the A/D conversion of the turnover storage battery 13 that is recorded by current measurement device 20 accordingly through counter after the A/D conversion.By central control computer 15 measured value and standard control model is compared, be in rectification state to charge in batteries or be in inverter mode to mains supply to determine two-way digital control inverter 17.

Pumping unit part in the utility model, can adopt the patent No. is the CN92200003 patent, it is the patent of CN91203427 that rare earth permanent-magnetic generator 9 can be selected the patent No. for use.

In the utility model, standard industrial control 15 can be selected the I/O 32 of U.S. ME company (MECHATRONICEQUIPMENT INC.) for use, or the PB16AH of U.S. OPTO 22 companies.Central control computer 14 can be selected the LC4 controller of U.S. OPTO 22 companies for use, also can select the PCS-1 industrial process Control work station of U.S. ME company for use, can also select common PC computer for use.The adaptation module 21 that can have and 22 can adopt the AD3 or the similar A/D modular converter of OPTO 22 companies.Adaptation module 16 and can have 18 can select the DF3 of OPTO 22 companies or similar D/F modular converter for use.

Claims (2)

1, a kind of digital-controlled wind power oil pumping unit, it has pylon (1), swabs (2), pull bar (3), chain (4), counterweight (5), sprocket wheel (6), full speed rare-earth numerical-control motor (7), bidirectional reversible variable-frequency power sources (8), it is characterized in that: be equipped with rare earth permanent-magnetic generator (9) and wind rotor (10) on the pylon top, between rare earth permanent-magnetic generator (9) and wind rotor (10), speed increaser (11) is arranged, rectifying device (12) is arranged, storage battery (13), the input end of rectifier (12) links to each other with the output terminal of rare earth permanent-magnetic generator (9), its output terminal links to each other with storage battery (13), storage battery also links to each other with bidirectional reversible variable-frequency power sources (8) simultaneously, standard industrial control (15) is arranged near at hand, standard industrial control (15) by the standard serial communication interface with can link to each other with the total central control computer (14) of other measuring and controlling equipment, in standard industrial control (15), be inserted with and link to each other with bidirectional reversible variable-frequency power sources (8) and its control adapter module of controlling (16).

2, digital-controlled wind power oil pumping unit as claimed in claim 1, it is characterized in that: another bidirectional reversible variable-frequency power sources (17) is arranged in storage battery (13) termination, the interchange end of bidirectional reversible variable-frequency power sources (17) links to each other with electrical network, in standard industrial control (15), be inserted with and link to each other with bidirectional reversible variable-frequency power sources (17) and its control adapter module of controlling (18), input end at battery (13) is connected to voltage measurement element (19), current measurement device (20), in standard industry interface (15), be inserted with and voltage measurement element (19) measurement adaptation module (21) and (22) that current measurement device (20) links to each other.

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