CN215672636U

CN215672636U - Balanced type non-impact hydraulic pumping unit

Info

Publication number: CN215672636U
Application number: CN202121046574.4U
Authority: CN
Inventors: 荣炳涛; 王宁
Original assignee: Shandong Taifu Intelligent Technology Co ltd
Current assignee: Shandong Taifu Intelligent Technology Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-01-28
Anticipated expiration: 2031-05-17

Abstract

The utility model relates to a balanced type does not have impact hydraulic pumping unit, belong to oil production equipment's field, it includes the organism, the organism upper end is equipped with the pneumatic cylinder, the piston rod of pneumatic cylinder sets up down, it is connected with the movable pulley to rotate on the piston rod of pneumatic cylinder, the organism top is close to one side and is equipped with the fixed pulley, drive belt has been set up jointly on movable pulley and the fixed pulley, drive belt one end and organism fixed connection, drive belt keeps away from organism one end fixedly connected with sucker rod, be equipped with the balancing unit who is used for balanced sucker rod on the movable pulley, organism one side bottom is equipped with the automatically controlled switching-over device that is used for controlling the switching-over of pneumatic cylinder piston rod, automatically controlled switching-over device includes the energy storage ware. This application can adjust stroke, stroke number wantonly through the pneumatic cylinder, and the setting of movable pulley can reduce the stroke of piston rod when realizing long stroke, reduces the operational failure, can absorb great hydraulic pressure through the energy storage ware, makes stroke number, stroke adjustment stable gently, reduces the impact, realizes energy-conservation high-efficient.

Description

Balanced type non-impact hydraulic pumping unit

Technical Field

The application relates to the field of oil extraction equipment, in particular to a balanced type non-impact hydraulic pumping unit.

Background

The oil field exploitation needs to use an oil pumping unit, the traditional beam-type transmission oil pumping unit is generally used at present, because of different oiliness, the viscosity and the flow characteristic of crude oil are different, particularly, the viscosity of thick oil is high, the exploitation difficulty is large, the operation of mechanically adjusting stroke, stroke frequency and balance is difficult, the balance effect is poor, the required driving torque is large, the configuration of the motor power and the rated torque of a reduction gearbox is generally high, the exploitation efficiency is low, and energy is wasted.

The hydraulic pumping unit is used for overcoming the defects of poor balance effect and heavy volume, and in the oil recovery process, the water content of produced liquid can be effectively reduced for thick oil recovery by long-stroke and low-stroke cold recovery, the gas injection period is prolonged, the cost is reduced, and the energy-saving effect is influenced by the structure of the hydraulic pumping unit.

Aiming at the related technologies, the inventor finds that the stroke of an oil cylinder of the hydraulic pumping unit is too long, the bending stress generated by a piston rod and a cylinder body is easy to cause operation problems, the stroke is short, the long stroke of the pumping rod cannot be realized, and the energy consumption and the cost are influenced.

SUMMERY OF THE UTILITY MODEL

In order to reduce the operation fault and simultaneously facilitate energy conservation and cost reduction, the application provides a balanced type non-impact hydraulic pumping unit.

The application provides a balanced type does not have technical scheme that strikes hydraulic pumping unit adopts as follows:

a balanced non-impact hydraulic pumping unit comprises a body, a hydraulic cylinder is arranged at the upper end of the body, the hydraulic cylinder is vertically arranged downwards, a piston rod of the hydraulic cylinder is arranged downwards, a movable pulley is rotatably connected to the piston rod of the hydraulic cylinder, a fixed pulley is arranged on one side above the machine body, a driving belt is jointly lapped on the movable pulley and the fixed pulley, one end of the driving belt is connected with the machine body tightness adjusting device, one end of the driving belt connected with the machine body tightness adjusting device is sequentially wound below the movable pulley and above the fixed pulley, one end of the driving belt far away from the machine body is fixedly connected with a sucker rod, the movable pulley is provided with a balancing device for balancing the sucker rod, and an electric control reversing device for controlling the reversing of the piston rod of the hydraulic cylinder is arranged at the bottom end of one side of the machine body and comprises an energy accumulator.

Through adopting above-mentioned technical scheme, drive the drive belt through the pneumatic cylinder drive movable pulley, and then drive the sucker rod and slide from top to bottom and realize the oil pumping, can adjust the stroke wantonly, stroke frequency, be applicable to the crude oil exploitation of different mobility, because the setting of movable pulley, the stroke of pneumatic cylinder piston rod is half of the sucker rod stroke, can be when realizing the long stroke, reduce the stroke of piston rod, thereby avoid the operation trouble that the too big causes of pneumatic cylinder long stroke bending stress, improve the equilibrium through balancing unit, thereby improve oil recovery efficiency, reduce the power consumption, can keep in the oil feed and the oil outlet power of pneumatic cylinder through the energy storage ware, improve energy-conserving effect, through absorbing great hydraulic pressure, make stroke frequency, stroke adjustment is mild and stable, reduce the impact, realize energy-conservation high-efficient.

Optionally, the balancing device is including setting up the balancing belt of movable pulley upside, balancing belt one end is also connected through the tight regulation device with the organism, the other end fixedly connected with balancing weight of balancing belt, balancing weight and sucker rod are located the both sides of movable pulley.

Through adopting above-mentioned technical scheme, overlap through balanced belt and establish on the movable pulley, when the movable pulley drove the motion of sucker rod, balanced belt can drive the balancing weight motion thereupon, can realize the balanced stability of sucker rod motion, reduces abnormal motion, improves oil recovery efficiency, and overall structure is simple, and it is very simple and convenient to make and maintain.

Optionally, a driving belt groove is formed in the position, close to the driving belt, of the movable pulley, and a balance belt groove is formed in the position, close to the balance belt, of the movable pulley.

Through adopting above-mentioned technical scheme, the setting in drive belt groove and balanced belt groove can be convenient for carry on spacingly to drive belt and balanced belt, reduces the belt and drops.

Optionally, the positions of the driving belt on two sides of the movable pulley are both vertically arranged.

Through adopting above-mentioned technical scheme, according to the movable pulley principle, the drive belt of vertical setting can the at utmost utilize kinetic energy, the energy saving.

Optionally, a check block is fixedly connected to a piston rod of the hydraulic cylinder, the electric control reversing device comprises an upper stroke detector, a lower stroke detector, an electric control module, an electro-hydraulic reversing valve and an integrated block, the upper stroke detector and the lower stroke detector are both located on a check block running line, the output ends of the upper stroke detector and the lower stroke detector are electrically connected with the input end of the electric control module, the output end of the electric control module is electrically connected with the input end of the electro-hydraulic reversing valve, the hydraulic cylinder is provided with two oil paths of oil inlet and oil outlet, the electro-hydraulic reversing valve and the integrated block are both arranged on the two oil paths of the hydraulic cylinder, and one end of the oil path, which is far away from the hydraulic cylinder, is provided with an oil tank.

By adopting the technical scheme, the hydraulic cylinder vertically slides to drive the sucker rod to slide, the stop block vertically slides, the baffle can be detected by the upper stroke detector and the lower stroke detector, the detection result is input into the electrical control module, and the electro-hydraulic reversing valve is controlled to reverse the hydraulic oil circuit of the hydraulic cylinder, so that the running direction of the piston rod of the hydraulic cylinder is controlled, the piston rod can automatically reciprocate, and the structure is simple.

Optionally, a power assembly for providing power is arranged at one end, close to the oil tank, of each of the oil paths, a shunt is connected to one end, close to the power assembly, of each of the two oil paths, the energy accumulator is arranged at one end, extending out of the oil path, of the shunt, and a safety valve is arranged on the shunt.

Through adopting above-mentioned technical scheme, the energy storage ware can be stored the too big hydraulic pressure in the oil circuit, and the system releases when needing, realizes energy-conservation, can reduce the impact simultaneously, makes stroke frequency, stroke adjustment gently stable, improves operating stability, and the security can be improved to the relief valve.

Optionally, a heater is arranged at a position, close to the oil tank, of the machine body, and an air cooler is further arranged at a position, close to the motor, of the machine body.

Through adopting above-mentioned technical scheme, can the temperature regulation through heater and air cooler, in time dispel the heat when the temperature is higher, when the temperature is lower, in time heat, prevent the oil condensation, influence the pneumatic cylinder operation.

Optionally, a ladder stand is arranged on one side of the machine body, and a guardrail is arranged outside the ladder stand.

Through adopting above-mentioned technical scheme, can be convenient for climb the organism top through the cat ladder and overhaul work such as etc, can improve the protection effect through the guardrail.

Optionally, the driving belt and the balance belt are both steel wire belts.

Through adopting above-mentioned technical scheme, steel wire belt's long service life, the reliability is high, and is not fragile.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

FIG. 2 is a partial schematic view of a movable block and a leveling device according to an embodiment of the present application.

Fig. 3 is a schematic diagram of an embodiment of the present application.

Description of reference numerals: 1. a body; 11. a hydraulic cylinder; 12. a movable pulley; 121. a driving belt groove; 122. a balance belt groove; 13. a fixed pulley; 14. a drive belt; 15. a sucker rod; 16. a balancing device; 161. a balancing belt; 162. a balancing weight; 17. a tightness adjusting device; 18. a stopper; 19. climbing a ladder; 191. a guardrail; 2. an electrically controlled reversing device; 21. an upper stroke detector; 22. a down stroke detector; 23. an electrical control module; 24. a power assembly; 241. a hydraulic pump; 242. a variable frequency motor; 25. an electro-hydraulic directional valve; 26. integrating the blocks; 27. an accumulator; 271. a safety valve; 28. a heater; 29. a wind cooler; 30. and an oil tank.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a balanced type non-impact hydraulic pumping unit. Referring to fig. 1, balanced type does not have impact hydraulic pumping unit includes organism 1, organism 1 is the cuboid setting of vertical setting, 1 upper end of organism is equipped with

pneumatic cylinder

11, 11 vertical settings of pneumatic cylinder set up downwards, the piston rod of pneumatic cylinder 11 sets up down, 1 outside one side sliding connection of organism has the sucker rod 15 of vertical setting, 15 vertical slips of sucker rod, 15 upper ends fixedly connected with drive belt 14 of sucker rod, pneumatic cylinder 11 drives the motion of drive belt 14, and then drives the slip of sucker rod 15, realize pumping.

Referring to fig. 1, a ladder 19 is provided at one side of a machine body 1, and a guard rail 191 is provided outside the ladder 19. The upper end of the machine body 1 forms a platform, and a cylinder seat of the hydraulic cylinder 11 and the fixed pulley 13 are fixed on the platform. Maintenance can be facilitated by the ladder 19 and platform arrangement.

Referring to fig. 1 and 2, a piston rod of the hydraulic cylinder 11 is rotatably connected with a movable pulley 12, a fixed pulley 13 is rotatably connected to a side above the machine body 1, which is close to one side, and central axes of the fixed pulley 13 and the movable pulley 12 are parallel and horizontally arranged. One end of the driving belt 14, which is far away from the sucker rod 15, is connected with the machine body 1 through the tightness adjusting device 17, and the driving belt 14 is sequentially wound below the movable pulley 12 from one end connected with the machine body 1 through the tightness adjusting device 17 and then is connected with the sucker rod 15 through the upper part of the fixed pulley 13. The piston rod of the hydraulic cylinder 11 moves to drive the movable pulley 12 to move, and further drives the sucker rod 15 to slide to realize oil pumping. The tightness adjusting device 17 is used for adjusting the tightness of the driving belt 14 and improving the driving effect of the driving belt 14 on the sucker rod 15.

Referring to fig. 2, a balancing device 16 for balancing the sucker rod 15 is arranged on the movable pulley 12, the balancing device 16 includes a balancing belt 161 disposed on the upper side of the movable pulley 12, one end of the balancing belt 161 is also connected to the machine body 1 through a slack adjuster 17, the other end of the balancing belt 161 is fixedly connected to a counterweight 162, and the counterweight 162 and the sucker rod 15 are respectively located on two sides of the movable pulley 12. When pneumatic cylinder 11 drove sucker rod 15 and slides, balancing weight 162 slided simultaneously, can realize the balance to sucker rod 15, prevents that sucker rod 15 slip process and speed are unstable to improve oil recovery efficiency.

Referring to fig. 2, a driving belt groove 121 is formed at a position of the movable pulley 12 close to the driving belt 14, the driving belt 14 is just embedded in the driving belt groove 121, a balance belt groove 122 is formed at a position of the movable pulley 12 close to the balance belt 161, and the balance belt 161 is just embedded in the balance belt groove 122. Drive belt groove 121 and balanced belt groove 122 can carry on spacingly to the belt, can prevent effectively that the belt from breaking away from.

Referring to fig. 2, the positions of the driving belts 14 on both sides of the movable pulley 12 are both vertically arranged, and the diameter of the position where the movable pulley 12 is used for setting the balance belt 161 is not smaller than that of the position where the movable pulley 12 is used for setting the driving belts 14. Keep away from according to movable pulley 12, the vertical setting of drive belt 14 is more laborsaving, can effectively utilize kinetic energy, realizes energy-conservation, and the diameter change can be convenient for realize balancing weight 162 to sucker rod 15's balanced effect simultaneously.

Referring to fig. 2, the drive belt 14 and the balance belt 161 are both steel wire belts. The steel wire belt has long service life and is durable.

Referring to fig. 2 and 3, a stopper 18 is fixedly connected to a piston rod of the hydraulic cylinder 11, an electrically controlled reversing device 2 for controlling the reversing of the piston rod of the hydraulic cylinder 11 is arranged at the bottom end of one side of the machine body 1, and the electrically controlled reversing device 2 comprises an upper stroke detector 21, a lower stroke detector 22, an electrical control module 23, a power assembly 24, an electro-hydraulic reversing valve 25, an integrated block 26 and an energy accumulator 27.

Referring to fig. 2 and 3, the upper stroke detector 21 and the lower stroke detector 22 are both located on the running route of the stop block 18, the output ends of the upper stroke detector 21 and the lower stroke detector 22 are electrically connected with the input end of the electrical control module, the output end of the electrical control module 23 is electrically connected with the input end of the electro-hydraulic directional valve 25, the hydraulic cylinder 11 is provided with two oil paths of oil inlet and oil outlet, the electro-hydraulic directional valve 25 and the integration block 26 are both arranged on the two oil paths of the hydraulic cylinder 11, and one end of the oil path far away from the hydraulic cylinder 11 is fixedly connected with an oil tank 30. The position of the stop block 18 is detected by an upper stroke detector 21 and a lower stroke detector 22, a detection signal is transmitted to an electric control module 23, and the electric-hydraulic reversing valve 25 is controlled by the electric control module 23 to control the flow direction of the oil path.

Referring to fig. 2 and 3, a power assembly 24 for providing power is disposed at one end of the oil circuit near the oil tank 30, the power assembly 24 includes a variable frequency motor 242 and a hydraulic pump 241, and the variable frequency motor 242 drives the hydraulic pump 241 to pump oil in the oil circuit to provide power.

Referring to fig. 2 and 3, one end of each of the two oil paths close to the driving assembly is connected with a shunt, the energy accumulator 27 is arranged at one end of the shunt extending out of the oil path, the energy accumulator 27 is vertically arranged, the lower part of the energy accumulator is connected with the oil path, and a safety valve is fixedly arranged on the shunt. The pressure in the oil way can be adjusted through the energy accumulator 27, so that the stroke frequency and stroke adjustment are smooth and stable, the impact is reduced, the energy can be stored and released, and the energy-saving effect is improved.

Referring to fig. 2 and 3, a heater 28 is fixedly connected to the machine body 1 near an oil tank 30, and a wind cooler 29 is also fixedly connected to the machine body 1 near the motor. The heater 28 and the air cooler 29 can adjust the temperature in time, avoid danger and prevent oil circuit condensation.

The implementation principle of the balanced type non-impact hydraulic pumping unit in the embodiment of the application is as follows: during the use, pneumatic cylinder 11 drive movable pulley 12 moves, drive sucker rod 15 and slide the oil pumping from top to bottom, movable pulley 12 can realize the big stroke of sucker rod 15 and the little stroke of pneumatic cylinder 11, the cooperation of balanced belt 161 and balancing weight 162 can realize balancing to sucker rod 15, improve operating stability, the piston rod of pneumatic cylinder 11 turns to and detects dog 18 position through upstroke detector 21 and downstroke detector 22, carry out the automatic switch-over through automatically controlled switching-over device 2, and is simple and convenient to operate, energy storage 27 can improve operating stability, play energy-conserving effect.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A balanced type non-impact hydraulic pumping unit is characterized in that: including organism (1), organism (1) upper end is equipped with pneumatic cylinder (11), pneumatic cylinder (11) vertical setting sets up downwards, the piston rod of pneumatic cylinder (11) sets up down, it is connected with movable pulley (12) to rotate on the piston rod of pneumatic cylinder (11), organism (1) top is close to one side and is equipped with fixed pulley (13), drive belt (14) have been set up jointly on movable pulley (12) and fixed pulley (13), drive belt (14) one end is connected through elasticity adjusting device (17) with organism (1), drive belt (14) are by winding around establishing in proper order in movable pulley (12) below and fixed pulley (13) top with the one end that is connected through elasticity adjusting device (17) with organism (1), organism (1) one end fixedly connected with sucker rod (15) is kept away from in drive belt (14), be equipped with balancing unit (16) that are used for balancing sucker rod (15) on movable pulley (12), the hydraulic cylinder reversing device is characterized in that an electric control reversing device (2) used for controlling a piston rod of the hydraulic cylinder (11) to reverse is arranged at the bottom end of one side of the machine body (1), and the electric control reversing device (2) comprises an energy accumulator (27).

2. The balanced impact-free hydraulic pumping unit as claimed in claim 1, wherein: balancing unit (16) are including taking up and establishing balancing belt (161) of movable pulley (12) upside, balancing belt (161) one end is also connected through tight regulation device (17) with organism (1), the other end fixedly connected with balancing weight (162) of balancing belt (161), balancing weight (162) and sucker rod (15) are located the both sides of movable pulley (12).

3. The balanced impact-free hydraulic pumping unit as claimed in claim 2, wherein: drive belt groove (121) have been seted up to movable pulley (12) near the position of drive belt (14), movable pulley (12) are close to balanced belt groove (122) have been seted up to the position of balanced belt (161).

4. The balanced impact-free hydraulic pumping unit as claimed in claim 2, wherein: the positions of the driving belt (14) on two sides of the movable pulley (12) are both vertically arranged.

5. The balanced impact-free hydraulic pumping unit as claimed in claim 1, wherein: a check block (18) is fixedly connected on a piston rod of the hydraulic cylinder (11), the electric control reversing device (2) comprises an upper stroke detector (21), a lower stroke detector (22), an electric control module (23), an electro-hydraulic reversing valve (25) and an integrated block (26), the upper stroke detector (21) and the lower stroke detector (22) are both positioned on the running line of the stop block (18), the output ends of the upper stroke detector (21) and the lower stroke detector (22) are electrically connected with the input end of the electric appliance control module, the output end of the electric control module (23) is electrically connected with the input end of the electro-hydraulic reversing valve (25), the hydraulic cylinder (11) is provided with two oil paths for oil inlet and oil outlet, the electro-hydraulic reversing valve (25) and the integrated block (26) are arranged on the two oil paths of the hydraulic cylinder (11), and one end, far away from the hydraulic cylinder (11), of the oil path is provided with an oil tank (30).

6. The balanced impact-free hydraulic pumping unit as claimed in claim 5, wherein: the oil circuit is close to oil tank (30) one end and is equipped with power component (24) that are used for providing power, two the oil circuit is close to power component (24) one end and is connected with along separate routes jointly, energy storage ware (27) set up the one end that stretches out the oil circuit along separate routes, be equipped with the relief valve along separate routes.

7. The balanced impact-free hydraulic pumping unit as claimed in claim 6, wherein: the machine body (1) is provided with a heater (28) at a position close to the oil tank (30), and the machine body (1) is also provided with an air cooler (29) at a position close to the power assembly (24).

8. The balanced impact-free hydraulic pumping unit as claimed in claim 1, wherein: a ladder stand (19) is arranged on one side of the machine body (1), and a guardrail (191) is arranged outside the ladder stand (19).

9. The balanced impact-free hydraulic pumping unit as claimed in claim 2, wherein: the driving belt (14) and the balance belt (161) are both steel wire belts.