CN203463080U - Digital energy-saving vertical-type oil pumping unit - Google Patents

Digital energy-saving vertical-type oil pumping unit Download PDF

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Publication number
CN203463080U
CN203463080U CN201320409115.7U CN201320409115U CN203463080U CN 203463080 U CN203463080 U CN 203463080U CN 201320409115 U CN201320409115 U CN 201320409115U CN 203463080 U CN203463080 U CN 203463080U
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CN
China
Prior art keywords
oil
pipeline
energy
valve
operated directional
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
Application number
CN201320409115.7U
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Chinese (zh)
Inventor
刘晓敏
刘亚东
刘国栋
刘旭东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JINZHONG YUCI MARINE HYDRAULIC CO Ltd
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JINZHONG YUCI MARINE HYDRAULIC CO Ltd
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Priority to CN201320409115.7U priority Critical patent/CN203463080U/en
Application granted granted Critical
Publication of CN203463080U publication Critical patent/CN203463080U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a digital energy-saving vertical-type oil pumping unit and belongs to the technical field of petroleum and coalbed gas extraction equipment. The technical problem to be solved in the utility model is to provide a digital energy-saving vertical-type oil pumping unit which is simple and reasonable in structure, small in size, light in weight, and low in energy consumption. The adopted technical scheme is that the oil pumping unit comprises an oil pumping rod arranged in an oil pumping well and a fixing rack arranged on the oil pumping well. The fixing rack is provided with a fixing support. An oil-pumping oil cylinder is inversely arranged on the fixing support. A piston rod of the oil-pumping oil cylinder is connected with the oil pumping rod. The oil-pumping oil cylinder is connected with a power source. The digital energy-saving vertical-type oil pumping unit is mainly applied to extraction of petroleum and coalbed gas.

Description

Digital energy-saving vertical type oil pumper
Technical field
The utility model relates to a kind of digital energy-saving vertical type oil pumper, belongs to oil, coal bed gas extraction equipment technical field.
Background technology
Along with the quickening of China's modernization, the degree of dependence of oil, natural gas, coal bed gas is also strengthened day by day.And the ground of oil, natural gas, coal bed gas is extracted, still use old-fashioned beam type plant equipment, not only volume is large, consumes energy high, and weight is large, and consumable accessory is many, and kelly, disconnected bar phenomenon frequently occur.And also inconvenient aspect transportation installation.And stroke length, frequency (beat/min) all can not adjust online, type is ten plurality of specifications from small to large. in good timePoor practicability, national total installed capacity quantity is about 100,000 left and right.
Utility model content
The utility model overcomes the deficiency that prior art exists, and technical problem to be solved has been to provide a kind of simple and reasonable for structure, the digital energy-saving vertical type oil pumper that volume is little, lightweight, energy consumption is low.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: digital energy-saving vertical type oil pumper, comprise: be arranged on sucker rod and the fixed mount that is arranged on pumpingh well top in pumpingh well, on described fixed mount, be provided with fixed bearing, on described fixed bearing, be inverted and be provided with oil pumping oil cylinder, the piston rod of described oil pumping oil cylinder is connected with sucker rod, and oil pumping oil cylinder is connected with power source;
Described power source comprises energy exchanger, solenoid operated directional valve, oil pump, variable-frequency motor, fuel tank and dynamic balance accumulator, the rodless cavity of described energy exchanger left end is connected with the rod chamber of oil pumping oil cylinder by choke valve, energy exchanger right-hand member rodless cavity is connected with dynamic balance accumulator, the left end rod chamber of described energy exchanger and right-hand member rod chamber are all connected with the oil-out of solenoid operated directional valve by oil pipe, the oil-in of solenoid operated directional valve is connected with the oil-out of oil pump through solenoid operated directional valve by the first pipeline, the oil-in of oil pump is connected with fuel tank, variable-frequency motor is connected with oil pump, on described the first pipeline, be also provided with the first one way valve, the left end rodless cavity of described energy exchanger and right-hand member rodless cavity are connected with the first pipeline by the 3rd pipeline respectively, on every the 3rd pipeline, be provided with Solenoid ball valve, the tie point of every the 3rd pipeline and the first pipeline is all between solenoid operated directional valve and the first one way valve.
Between described solenoid operated directional valve and the first one way valve, be provided with the second pipeline being connected with pump energy accumulator, on described the second pipeline, be provided with pressure meter, between described oil pump and the first one way valve, be provided with the overflow passage being connected with fuel tank, on overflow passage, be provided with electromagnetic relief valve.
Left end rodless cavity and the right-hand member rodless cavity of described energy exchanger are provided with pressure transmitter, and the right-hand member rodless cavity of energy exchanger is also provided with displacement transducer.
The bonding surface at described fixed bearing and fixed mount top is hemispherical.
Described the first pipeline is also connected with emergency bearing oil pump through the 3rd one way valve, and standby variable frequency motor is connected with emergency bearing oil pump, and described emergency bearing oil pump is also connected with overflow passage.
Described solenoid operated directional valve, variable-frequency motor, Solenoid ball valve, pressure transmitter, standby variable frequency motor and displacement transducer are all connected and control with automatically controlled PLC.
The beneficial effect that the utility model compared with prior art had is: the utility model adopts hydraulic system to drive oil pumping oil cylinder, drives sucker rod to pump, and volume is little, lightweight, simple in structure, convenient operation, installation and transportation are convenient; Simultaneously fixed mount top fixed bearing is hemispherical, the problem of can effectively avoid pumping the decentraction of oil cylinder piston and sucker rod and the kelly occurring in oil pumping process, grinding bar; And whole system adopts automatically controlled PLC to carry out Digital Control, number of strokes can real-time online adjustment, effectively reduces operating cost, has reduced the investment of manpower and materials, has improved the benefit that equipment is used.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
In figure: 1 is sucker rod, 2 is fixed mount, 3 is fixed bearing, 4 is oil pumping oil cylinder, 5 is power source, 6 is energy exchanger, 7 is solenoid operated directional valve, 8 is oil pump, 9 is variable-frequency motor, 10 is fuel tank, 11 is dynamic balance accumulator, 12 is the first pipeline, 13 is choke valve, 14 is the first one way valve, 15 is pump energy accumulator, 16 is the second pipeline, 17 is the 3rd pipeline, 18 is Solenoid ball valve, 19 is overflow passage, 20 is electromagnetic relief valve, 21 is pressure transmitter, 22 is the 3rd one way valve, 23 is emergency bearing oil pump, 24 is standby variable frequency motor, 25 is pressure meter, 26 is displacement transducer.
The specific embodiment
As shown in Figure 1, digital energy-saving vertical type oil pumper, comprise: be arranged on sucker rod 1 and the fixed mount 2 that is arranged on pumpingh well top in pumpingh well, on described fixed mount 2, be provided with fixed bearing 3, on described fixed bearing 3, be inverted and be provided with oil pumping oil cylinder 4, the piston rod of described oil pumping oil cylinder 4 is connected with sucker rod 1, and oil pumping oil cylinder 4 is connected with power source 5;
Described power source 5 comprises energy exchanger 6, solenoid operated directional valve 7, oil pump 8, variable-frequency motor 9, fuel tank 10 and dynamic balance accumulator 11, the rodless cavity of described energy exchanger 6 left ends is connected with the rod chamber of oil pumping oil cylinder 4 by choke valve 13, energy exchanger 6 right-hand member rodless cavities are connected with dynamic balance accumulator 11, the left end rod chamber of described energy exchanger 6 and right-hand member rod chamber are all connected with the oil-out of solenoid operated directional valve 7 by oil pipe, the oil-in of solenoid operated directional valve 7 is connected with the oil-out of oil pump 8 through solenoid operated directional valve 7 by the first pipeline 12, the oil-in of oil pump 8 is connected with fuel tank 10, variable-frequency motor 9 is connected with oil pump 8, on described the first pipeline 12, be also provided with the first one way valve 14, the left end rodless cavity of described energy exchanger 6 and right-hand member rodless cavity are connected with the first pipeline 12 by the 3rd pipeline 17 respectively, on every the 3rd pipeline 17, be provided with Solenoid ball valve 18, the tie point of every the 3rd pipeline 17 and the first pipeline 12 is all between solenoid operated directional valve 7 and the first one way valve 14.
Between described solenoid operated directional valve 7 and the first one way valve 14, be provided with the second pipeline 16 being connected with pump energy accumulator 15, on described the second pipeline 16, be provided with pressure meter 25, between described oil pump 8 and the first one way valve 14, be provided with the overflow passage 19 being connected with fuel tank 10, on overflow passage 19, be provided with electromagnetic relief valve 20.
Left end rodless cavity and the right-hand member rodless cavity of described energy exchanger 6 are provided with pressure transmitter 21, and the right-hand member rodless cavity of energy exchanger 6 is also provided with displacement transducer 26.
Described fixed bearing 3 is hemispherical with the bonding surface at fixed mount 2 tops.
Described the first pipeline 12 is also connected with emergency bearing oil pump 23 through the 3rd one way valve 22, and standby variable frequency motor 24 is connected with emergency bearing oil pump 23, and described emergency bearing oil pump 23 is also connected with overflow passage 19.
Described solenoid operated directional valve 7, variable-frequency motor 9, Solenoid ball valve 18, pressure transmitter 21, standby variable frequency motor 24 and displacement transducer 26 are all connected and control with automatically controlled PLC.
When the utility model is specifically used, the air in first emptying whole pipe-line system is full of hydraulic oil in system pipeline.Suppose that the pressure that oil pumping oil cylinder 4 needs while rising is P 1, the pressure setting of dynamic balance accumulator 11 is 0.85 P 1.Start variable-frequency motor 9 and drive oil pump 8 pump oil, oil pump 8 is filled with hydraulic oil in pump energy accumulator 15, the force value of while monitoring pressure table 25, and when pump energy accumulator 15 internal pressures reach certain value, electromagnetic relief valve 20 obtains electric, carries out pressure release.After pressure release completes, solenoid operated directional valve 7 switches to P-A, and oil pump 8 and pump energy accumulator 15 are filled with and are greater than 0.15 P to the left end rod chamber of energy exchanger 6 1oil pressure, the piston rod of oil pumping oil cylinder 4 rises; The piston rod of oil cylinder 4 to be pumped rises to precalculated position, and piston rod declines while preparing to decline, and oil cylinder 4 internal pressures of now pumping are 0.7P 1, dynamic balance accumulator 11 internal pressures are 0.85P 1, solenoid operated directional valve 7 switches to P-B, and oil pump 8 and pump energy accumulator 15 are filled with and are greater than 0.15 P to the right-hand member rod chamber of energy exchanger 6 1oil pressure, the piston rod of oil pumping oil cylinder 4 declines, and completes a working cycles.In whole oil pumping process, oil pump, variable-frequency motor power output are only the 15%-20% of mechanical beam machine power output, and energy-saving effect is remarkable.
When oil cylinder 4 piston rods of wherein pumping rise, the pressure transmitter 21 monitoring energy exchanger 6 right-hand member rodless cavity pressure of energy exchanger 6 right-hand members, if due to the insufficient pressure in dynamic balance accumulator 11, when the piston rod of oil pumping oil cylinder 4 cannot rise to assigned address, pressure transmitter 21 senders are to automatically controlled PLC, the Solenoid ball valve 21 that automatically controlled PLC controls energy exchanger 6 right-hand members obtains electric, oil pump 8 and pump energy accumulator 15 are filled with hydraulic oil in energy exchanger 6 right-hand member rodless cavities, and the piston rod of the oil cylinder 4 that makes to pump reaches assigned address; When the piston rod of oil pumping oil cylinder 4 declines, the pressure of the pressure transmitter 21 monitoring energy exchanger 6 left end rodless cavities of energy exchanger 6 left ends, when the piston rod of oil pumping oil cylinder 4 cannot drop to minimum point, because changing, energy exchanger 6 left end rodless cavity pressure cause, pressure transmitter 21 senders are to automatically controlled PLC, the Solenoid ball valve 21 that automatically controlled PLC controls energy exchanger 6 left ends obtains electric, oil pump 8 and pump energy accumulator 15 are filled with hydraulic oil in energy exchanger 6 left end rodless cavities, and the piston rod of oil pumping oil cylinder 4 drops to minimum point.
The main balance sucker rod gravity of dynamic balance accumulator 11, guarantees that sucker rod rises and declines more steady; Pump energy accumulator 15 is to be mainly filled with hydraulic oil for energy exchanger 6; reduce system energy consumption, when solenoid operated directional valve 7 switches, sucker rod 1 falls after rise system is produced to surge simultaneously; pump energy accumulator 15 can this compression shock of balance, the normal operation of protection system and Hydraulic Elements.Pump the in addition fixed bearing 3 of oil cylinder 4 and the contact surface of fixed mount 2 adopts hemispherical dome structure, the problem of can effectively avoid taking out the decentraction of oil cylinder piston and sucker rod and the kelly occurring in oil pumping process, grinding bar.
Emergency bearing oil pump 23, standby variable frequency motor 24 and oil pump 8, variable-frequency motor 9 are used alternatingly, and exchange in every 8 hours once.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make various variations.

Claims (6)

1. digital energy-saving vertical type oil pumper, comprise: be arranged on the sucker rod (1) in pumpingh well and be arranged on the fixed mount (2) of pumpingh well top, it is characterized in that: on described fixed mount (2), be provided with fixed bearing (3), the upper inversion of described fixed bearing (3) is provided with oil pumping oil cylinder (4), the piston rod of described oil pumping oil cylinder (4) is connected with sucker rod (1), and oil pumping oil cylinder (4) is connected with power source (5);
Described power source (5) comprises energy exchanger (6), solenoid operated directional valve (7), oil pump (8), variable-frequency motor (9), fuel tank (10) and dynamic balance accumulator (11), the rodless cavity of described energy exchanger (6) left end is connected with the rod chamber of oil pumping oil cylinder (4) by choke valve (13), energy exchanger (6) right-hand member rodless cavity is connected with dynamic balance accumulator (11), the left end rod chamber of described energy exchanger (6) and right-hand member rod chamber are all connected with the oil-out of solenoid operated directional valve (7) by oil pipe, the oil-in of solenoid operated directional valve (7) is connected with the oil-out of oil pump (8) through solenoid operated directional valve (7) by the first pipeline (12), the oil-in of oil pump (8) is connected with fuel tank (10), variable-frequency motor (9) is connected with oil pump (8), on described the first pipeline (12), be also provided with the first one way valve (14), the left end rodless cavity of described energy exchanger (6) and right-hand member rodless cavity are connected with the first pipeline (12) by the 3rd pipeline (17) respectively, on every the 3rd pipeline (17), be provided with Solenoid ball valve (18), the tie point of every the 3rd pipeline (17) and the first pipeline (12) is all positioned between solenoid operated directional valve (7) and the first one way valve (14).
2. digital energy-saving vertical type oil pumper according to claim 1, it is characterized in that: between described solenoid operated directional valve (7) and the first one way valve (14), be provided with the second pipeline (16) being connected with pump energy accumulator (15), on described the second pipeline (16), be provided with pressure meter (25), between described oil pump (8) and the first one way valve (14), be provided with the overflow passage (19) being connected with fuel tank (10), on overflow passage (19), be provided with electromagnetic relief valve (20).
3. digital energy-saving vertical type oil pumper according to claim 1 and 2, it is characterized in that: the left end rodless cavity of described energy exchanger (6) and right-hand member rodless cavity are provided with pressure transmitter (21), the right-hand member rodless cavity of energy exchanger (6) is also provided with displacement transducer (26).
4. digital energy-saving vertical type oil pumper according to claim 1, is characterized in that: described fixed bearing (3) is hemispherical with the bonding surface at fixed mount (2) top.
5. digital energy-saving vertical type oil pumper according to claim 3, it is characterized in that: described the first pipeline (12) is also connected with emergency bearing oil pump (23) through the 3rd one way valve (22), standby variable frequency motor (24) is connected with emergency bearing oil pump (23), and described emergency bearing oil pump (23) is also connected with overflow passage (19).
6. digital energy-saving vertical type oil pumper according to claim 5, is characterized in that: described solenoid operated directional valve (7), variable-frequency motor (9), Solenoid ball valve (18), pressure transmitter (21), standby variable frequency motor (24) and displacement transducer (26) are all connected and control with automatically controlled PLC.
CN201320409115.7U 2013-07-10 2013-07-10 Digital energy-saving vertical-type oil pumping unit Expired - Fee Related CN203463080U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320409115.7U CN203463080U (en) 2013-07-10 2013-07-10 Digital energy-saving vertical-type oil pumping unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320409115.7U CN203463080U (en) 2013-07-10 2013-07-10 Digital energy-saving vertical-type oil pumping unit

Publications (1)

Publication Number Publication Date
CN203463080U true CN203463080U (en) 2014-03-05

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CN201320409115.7U Expired - Fee Related CN203463080U (en) 2013-07-10 2013-07-10 Digital energy-saving vertical-type oil pumping unit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105178917A (en) * 2014-06-06 2015-12-23 程丹秀 Hydraulic reciprocating single-cylinder pumping unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105178917A (en) * 2014-06-06 2015-12-23 程丹秀 Hydraulic reciprocating single-cylinder pumping unit

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20140305

Termination date: 20160710