Energy-saving control device of oil pumping unit

Abstract

The utility model relates to the technical field of oil pumping unit control devices, in particular to an oil pumping unit energy-saving control device which comprises a ground. Two supporting towers are installed on the surface of the upper end of the ground, an oil cylinder is installed at the upper end of each supporting tower, a second high-pressure oil pipe is connected between oil injection holes of the two oil cylinders, an oil tank is installed on the surface of the upper end of the ground, and one ends of two first high-pressure oil pipes are connected to the surface of the upper end of the oil tank; the other ends of the two high-pressure oil pipes I are connected to the surface of the high-pressure oil pipe II; the circulating pump controls circulating flow of hydraulic oil between the two oil cylinders, alternate lifting operation of the two oil pumping units is achieved through forward and reverse rotation of the circulating pump, the first high-pressure oil pipe is responsible for conveying the hydraulic oil into the two oil cylinders from the oil tank, the second high-pressure oil pipe is responsible for transferring the hydraulic oil between the two oil cylinders, and circulating flow of the hydraulic oil is achieved. The operation of the two oil pumping units is controlled by controlling the reciprocating operation of one hydraulic oil pump, so that the energy-saving control effect is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to pumping unit control device technical field especially relates to a pumping unit energy -conserving control device. BACKGROUND

[0002] Pumping unit is used in the equipment in the process of oil exploitation, is mainly used to extract crude oil from the underground oil well to the ground, motor or internal combustion engine as power source, through the reducer reduces the rotating speed and increases the torque, motor drive crank rotation, drive the connecting rod up and down, form the swing action of swing arm, one end of swing arm is connected with walking beam, the other end of walking beam is equipped with donkey head, and the donkey head is hung with steel wire rope, and the steel wire rope is connected with the hanging rope device and the polish rod below, the polish rod passes through the sealing box and is connected with the sucker rod string below, when the walking beam swings up and down, the polish rod does the up-down linear motion, and then makes the sucker rod string move up and down, the sucker rod pump under the well moves up and down along with the sucker rod string, and when the upstroke, the crude oil is sucked, and when the downstroke, the crude oil is discharged to the ground pipeline.

[0003] The common pumping unit energy -conserving control device usually adopts the mode of single motor control single equipment operation, and this configuration means that each pumping unit is provided with an independent motor to drive its operation, and the power of the motor is about twenty two kilowatts, and the energy consumption problem gradually appears under the condition of continuous operation.

[0004] Therefore, aiming at the problem that the common pumping unit generally adopts single motor control single equipment operation, and the power of each pumping unit is about twenty two kilowatts, and the power consumption is relatively large under the condition of continuous operation, a novel pumping unit energy -conserving control device needs to be designed. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem that the common pumping unit generally adopts single motor control single equipment operation, and the power of each pumping unit is about twenty two kilowatts, and the power consumption is relatively large under the condition of continuous operation.

[0006] The technical scheme of the utility model is as follows: a pumping unit energy -conserving control device, comprising a ground, further comprising two support towers are installed on the upper end surface of the ground, an oil cylinder is installed on the upper end of the two support towers, a high pressure oil pipe two is connected between the oil injection holes of the two oil cylinders, an oil tank is installed on the upper end surface of the ground, one end of two high pressure oil pipes one is connected to the upper end surface of the oil tank, the other end of the two high pressure oil pipes one is connected to the surface of the high pressure oil pipe two, a support rod is arranged on the upper end surface of the oil tank, an installation seat is installed on the upper end of the support rod, a fuel pump is installed on the upper end surface of the installation seat, two output ends of the fuel pump are arranged in the two high pressure oil pipes one respectively, a circulating pump is installed on the surface of the high pressure oil pipe two, one check valve one is installed on the surface of the two high pressure oil pipes one respectively, one check valve two is installed on the surface of the two high pressure oil pipes one respectively, the check valve one is below the fuel pump, and the check valve two is above the fuel pump.

[0007] Preferably, the oil supply pump is started to draw hydraulic oil from the oil tank and deliver the hydraulic oil to the high-pressure oil pipe two through the high-pressure oil pipe one, and the hydraulic oil enters the two oil cylinders through the high-pressure oil pipe two, so that the two oil cylinders are lifted to half of the total stroke, that is, the middle position, and when the two oil cylinders reach the middle position, the circulating pump is started, and when the circulating pump rotates forward, the hydraulic oil flows from one oil cylinder to the other oil cylinder, at this time, the hydraulic oil in one oil cylinder decreases, and the pumping unit runs downward, and the hydraulic oil in the other oil cylinder increases, and the other pumping unit runs upward, and when the two oil cylinders reach the limit position, the circulating pump reverses, and the hydraulic oil flows reversely, and at this time, the running directions of the two pumping units are switched again, and the alternating lifting operation of the two pumping units is realized through the forward and reverse rotation of the circulating pump, and one set of oil supply mechanism can control the operation of the two pumping units.

[0008] Preferably, the upper end surface of the ground is provided with a control cabinet, the surface of the control cabinet is provided with an Internet of Things interface, and the control cabinet is electrically connected with the oil supply pump and the circulating pump.

[0009] Preferably, the oil supply pump and the circulating pump are both plunger type hydraulic oil pumps, and the upper end surface of the oil tank is provided with an oil inlet pipe.

[0010] Preferably, the lower end surfaces of the two support towers are both provided with a cable support, and the lower end surfaces of the support towers are both provided with a cable roller.

[0011] Preferably, the output ends of the two oil cylinders are both provided with a movable pulley, one end of a cable body is arranged on the surface of the cable support, and the cable body is sequentially arranged on the surfaces of the movable pulley and the cable roller.

[0012] Preferably, the other end of the cable body is connected with a fixing rod, and the surface of the fixing rod is provided with a counterweight.

[0013] Preferably, a plurality of fixing holes are arranged on the surface of the fixing rod, a plug hole is arranged on the surface of the counterweight, the fixing hole and the plug hole are of the same specification, and a plug rod is arranged in the fixing hole and the plug hole.

[0014] The utility model discloses the beneficial effects of:

[0015] 1, the oil supply pump provides initial hydraulic oil, makes two oil cylinders reach the middle position, ensures the normal start -up of the hydraulic mechanism, and the circulating pump controls the circulation of hydraulic oil between two oil cylinders, and the alternating lifting operation of two pumping units is realized through the forward and reverse rotation of the circulating pump, one -way valve prevents the backflow of hydraulic oil to the oil tank, guarantees the oil supply efficiency of the oil supply pump, one -way valve two ensures that the hydraulic oil can only flow to the high -pressure oil pipe two, avoids the backflow of oil, the high -pressure oil pipe one is responsible for delivering the hydraulic oil from the oil tank to two oil cylinders, and the high -pressure oil pipe two is responsible for transmitting the hydraulic oil between two oil cylinders, realizes the circulation of hydraulic oil, and the reciprocating operation of one hydraulic oil pump is controlled to control the operation of two pumping units, and the energy -saving control effect is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic view of a place where a support tower of an energy-saving control device of a pumping unit is located is shown.

[0017] Figure 2 A three-dimensional structure schematic view of a place where a support tower of an energy-saving control device of a pumping unit is located is shown.

[0018] Figure 3 A three-dimensional structure schematic view of a place where an oil tank of an energy-saving control device of a pumping unit is located is shown.

[0019] Figure 4 A three-dimensional structure schematic view of a place where a support tower of an energy-saving control device of a pumping unit is located is shown.

[0020] Figure 5 A three-dimensional structure schematic view of a place where a support tower of an energy-saving control device of a pumping unit is located is shown.

[0021] Reference signs: 1, ground; 2, support tower; 3, oil cylinder; 4, oil tank; 5, support rod; 6, mounting seat; 7, oil supply pump; 8, high-pressure oil pipe one; 9, one-way valve one; 10, one-way valve two; 11, high-pressure oil pipe two; 12, circulating pump; 13, oil inlet pipe; 14, control cabinet; 15, cable support; 16, cable roller; 17, movable pulley; 18, cable body; 19, fixed rod; 20, fixed hole; 21, counterweight; 22, insertion hole; 23, insertion rod. DETAILED DESCRIPTION

[0022] The utility model will be further explained in connection with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides an embodiment: a pumping unit energy -conserving control device, including ground 1, still include, the upper end surface of ground 1 is installed with two support towers 2, the upper end of two support towers 2 is installed with an oil cylinder 3, two oil cylinder 3 injection hole is connected with high pressure oil pipe no. 2 11, the upper end surface of ground 1 is installed with oil tank 4, one end of two high pressure oil pipe no. 8 is connected in the upper end surface of oil tank 4, the other end of two high pressure oil pipe no. 8 is connected in the surface of high pressure oil pipe no. 2 11, the upper end surface of oil tank 4 is provided with support rod 5, the upper end of support rod 5 is installed with mounting seat 6, the upper end surface of mounting seat 6 is installed with oil feed pump 7, two output ends of oil feed pump 7 are arranged in two high pressure oil pipe no. 8 respectively, the surface of high pressure oil pipe no. 2 11 is installed with circulating pump 12, the surface of two high pressure oil pipe no. 8 is installed with a one way valve no. 1 9 respectively, the surface of two high pressure oil pipe no. 8 is installed with a one way valve no. 2 10 respectively, one way valve no. 1 9 is below oil feed pump 7, one way valve no. 2 10 is above oil feed pump 7, start oil feed pump 7, and extract hydraulic oil from oil tank 4, and hydraulic oil is delivered to high pressure oil pipe no. 2 11 through high pressure oil pipe no. 8, and hydraulic oil enters two oil cylinder 3 through high pressure oil pipe no. 2 11, makes two oil cylinder 3 all rise to half of total stroke, that is, intermediate position, when two oil cylinder 3 all reach intermediate position, start circulating pump 12, when circulating pump 12 is forward, hydraulic oil flows from one oil cylinder 3 to another oil cylinder 3, at this time, the hydraulic oil in one oil cylinder 3 reduces, and the pumping unit runs downward, and the hydraulic oil in another oil cylinder 3 increases, and another pumping unit runs upward, when two oil cylinder 3 all run to limit position, circulating pump 12 reverses, and hydraulic oil flows reversely, at this time, the running direction of two pumping units is switched again, and the alternating lifting operation of two pumping units is realized through the forward and reverse rotation of circulating pump 12, and one set of oil supply mechanism can control the operation of two pumping units simultaneously.

[0024] Please refer to Figures 1-4 In the embodiment, the upper end surface of the ground 1 is provided with a control cabinet 14, the surface of the control cabinet 14 is provided with an Internet of Things interface, the control cabinet 14 is electrically connected with the oil feed pump 7 and the circulating pump 12, the oil feed pump 7 is controlled by the control cabinet 14 to supply oil to the two oil cylinders 3, thereby providing operating conditions for the circulating operation of the lifting oil cylinder 3, and the setting of the Internet of Things interface can realize remote control through the Internet of Things. The oil feed pump 7 and the circulating pump 12 are both plunger type hydraulic oil pumps, the upper end surface of the oil tank 4 is provided with an oil inlet pipe 13, the setting of the plunger type hydraulic oil pump can realize quantitative oil supply and accurately control the operating height of the lifting oil cylinder 3, the oil inlet pipe 13 facilitates the replenishment of hydraulic oil, the lower end surface of each of the two support towers 2 is provided with a cable support 15, and the lower end surface of each of the two support towers 2 is provided with a cable roller 16. The cable support 15 is used to provide a fixed point to anchor one end of the cable, and the cable roller 16 is used to guide the movement track of the cable.

[0025] Please refer to Figure 1 ,Figure 2 、 Figure 4 and Figure 5 In this embodiment, the output end of each of the two oil cylinders 3 is provided with a movable pulley 17, one end of a cable body 18 is provided on the surface of the cable support 15, the cable body 18 is sequentially arranged on the surface of the movable pulley 17 and the cable roller 16, the movable pulley 17 changes the direction of the force of the cable body 18, so that the oil cylinder 3 participates in the force transmission process, the other end of the cable body 18 is connected with a fixed rod 19, the surface of the fixed rod 19 is provided with a counterweight 21, the counterweight 21 allows the cable body 18 to effectively push the oil cylinder 3, thereby assisting the reciprocating lifting operation of the pumping unit, a plurality of fixing holes 20 are arranged on the surface of the fixed rod 19, a plug hole 22 is arranged on the surface of the counterweight 21, the specifications of the fixing hole 20 and the plug hole 22 are consistent, and a plug rod 23 is arranged in the fixing hole 20 and the plug hole 22. The plug hole 22 is arranged on the surface of the counterweight 21 and has the same specification as the fixing hole 20, so that the plug rod 23 can be smoothly inserted, and the counterweight 21 is firmly fixed on the fixed rod 19.

[0026] When working, the oil supply pump 7 is started to extract hydraulic oil from the oil tank 4 and deliver the hydraulic oil to the high-pressure oil pipe two 11 through the high-pressure oil pipe one 8, the hydraulic oil enters the two oil cylinders 3 through the high-pressure oil pipe two 11, so that the two oil cylinders 3 are both lifted to half of the total stroke, that is, the middle position, when the two oil cylinders 3 reach the middle position, the circulating pump 12 is started, when the circulating pump 12 rotates forward, the hydraulic oil flows from one oil cylinder 3 to the other oil cylinder 3, at this time, the hydraulic oil in one oil cylinder 3 decreases, and the pumping unit runs downward, the hydraulic oil in the other oil cylinder 3 increases, and the other pumping unit runs upward, when the two oil cylinders 3 run to the limit position, the circulating pump 12 reverses, and the hydraulic oil flows reversely, at this time, the running directions of the two pumping units are switched again, through the forward and reverse rotation of the circulating pump 12, the alternating lifting operation of the two pumping units is realized, one set of oil supply mechanism can control the operation of two pumping units at the same time, the oil supply pump 7 is controlled by the control cabinet 14 to supply oil to the two oil cylinders 3, to provide operating conditions for the circulating operation of the lifting oil cylinder 3, the setting of the Internet of Things interface can realize remote control through the Internet of Things, the setting of the plunger type hydraulic oil pump can realize quantitative oil supply, and the running height of the lifting oil cylinder 3 can be accurately controlled, the oil inlet pipe 13 is convenient for supplementing hydraulic oil, the cable support 15 is used to provide a fixed point to anchor one end of the cable, the cable roller 16 is used to guide the movement track of the cable, the movable pulley 17 changes the direction of the force of the cable body 18, so that the oil cylinder 3 participates in the force transmission process, the counterweight 21 allows the cable body 18 to effectively push the oil cylinder 3, thereby assisting the reciprocating lifting operation of the pumping unit, the plug hole 22 is arranged on the surface of the counterweight 21 and has the same specification as the fixing hole 20, so that the plug rod 23 can be smoothly inserted, and the counterweight 21 is firmly fixed on the fixed rod 19.

[0027] Through the above steps, the oil supply pump 7 provides initial hydraulic oil, so that the two oil cylinders 3 reach the intermediate position, ensuring the normal start of the hydraulic mechanism, the circulating pump 12 controls the circulating flow of hydraulic oil between the two oil cylinders 3, the alternating lifting operation of the two pumping units is realized by the forward and reverse rotation of the circulating pump 12, the one-way valve one 9 prevents the backflow of hydraulic oil to the oil tank 4, ensures the oil supply efficiency of the oil supply pump 7, the one-way valve two 10 ensures that the hydraulic oil can only flow to the high-pressure oil pipe two 11, avoids the backflow of oil, the high-pressure oil pipe one 8 is responsible for conveying hydraulic oil from the oil tank 4 to the two oil cylinders 3, the high-pressure oil pipe two 11 is responsible for transmitting hydraulic oil between the two oil cylinders 3, realizing the circulating flow of hydraulic oil, controlling the reciprocating operation of one hydraulic oil pump to control the operation of two pumping units, realizing the energy-saving control effect, to solve the common problem that the pumping unit generally uses single motor to control single equipment operation, the power is about twenty-two kilowatts per unit, and the continuous operation consumes more electric energy.

Claims

1. An energy-saving control device for an oil pumping unit, comprising a ground (1); characterized in that: It also includes two support towers (2) installed on the upper surface of the ground (1), each of the two support towers (2) having a hydraulic cylinder (3) installed on its upper end, and a high-pressure oil pipe (11) connecting the oil injection holes of the two hydraulic cylinders (3). An oil tank (4) is installed on the upper surface of the ground (1), and one end of two high-pressure oil pipes (8) is connected to the upper surface of the oil tank (4). The other end of the two high-pressure oil pipes (8) is connected to the surface of the high-pressure oil pipe (11). A support rod (5) is provided on the upper surface of the oil tank (4). An mounting base (6) is installed at the upper end. An oil supply pump (7) is installed on the upper surface of the mounting base (6). The two output ends of the oil supply pump (7) are respectively located in two high-pressure oil pipes (8). A circulation pump (12) is installed on the surface of the high-pressure oil pipe (11). A check valve (9) is installed on the surface of each of the two high-pressure oil pipes (8). A check valve (10) is installed on the surface of each of the two high-pressure oil pipes (8). The check valve (9) is located below the oil supply pump (7), and the check valve (10) is located above the oil supply pump (7).

2. The energy-saving control device for an oil pumping unit according to claim 1, characterized in that: A control cabinet (14) is installed on the upper surface of the ground (1). The surface of the control cabinet (14) is equipped with an Internet of Things interface. The control cabinet (14) is electrically connected to the oil supply pump (7) and the circulation pump (12).

3. The energy-saving control device for an oil pumping unit according to claim 2, characterized in that: Both the oil supply pump (7) and the circulation pump (12) are plunger-type hydraulic oil pumps, and the upper surface of the oil tank (4) is provided with an oil inlet pipe (13).

4. The energy-saving control device for an oil pumping unit according to claim 1, characterized in that: A cable bracket (15) is installed on the lower surface of each of the two support towers (2), and a cable roller (16) is installed on the lower surface of each support tower (2).

5. The energy-saving control device for an oil pumping unit according to claim 1, characterized in that: Each of the two hydraulic cylinders (3) has a movable pulley (17) installed at its output end. One end of the cable body (18) is installed on the surface of the cable bracket (15). The cable body (18) is arranged on the surface of the movable pulley (17) and the cable roller (16) in sequence.

6. The energy-saving control device for an oil pumping unit according to claim 5, characterized in that: The other end of the cable body (18) is connected to a fixing rod (19), and a counterweight (21) is provided on the surface of the fixing rod (19).

7. The energy-saving control device for an oil pumping unit according to claim 6, characterized in that: The surface of the fixing rod (19) is provided with multiple fixing holes (20), and the surface of the counterweight (21) is provided with insertion holes (22). The fixing holes (20) and insertion holes (22) are of the same specifications, and insertion rods (23) are placed inside the fixing holes (20) and insertion holes (22).

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