CN113790696A - Pumping unit monitoring equipment and pumping unit system - Google Patents
Pumping unit monitoring equipment and pumping unit system Download PDFInfo
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- CN113790696A CN113790696A CN202010457032.XA CN202010457032A CN113790696A CN 113790696 A CN113790696 A CN 113790696A CN 202010457032 A CN202010457032 A CN 202010457032A CN 113790696 A CN113790696 A CN 113790696A
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- locking nut
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- 238000005086 pumping Methods 0.000 title claims abstract description 110
- 238000012544 monitoring process Methods 0.000 title claims abstract description 10
- 238000012806 monitoring device Methods 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000003129 oil well Substances 0.000 description 7
- 241001023788 Cyttus traversi Species 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 241001331845 Equus asinus x caballus Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The disclosure relates to a monitoring device of an oil pumping unit and an oil pumping unit system, and belongs to the technical field of oil extraction. The pumping unit comprises a connecting rod, a crank pin, a crank and a locking nut, wherein the crank is provided with a crank through hole, the crank pin penetrates through the crank through hole, two ends of the crank pin respectively extend out of two opposite surfaces of the crank, the first end of the crank pin is connected with the connecting rod, and the second end of the crank pin is fixedly provided with the locking nut. The monitoring equipment of the oil pumping unit comprises: the angle sensor is used for measuring the angle value between the locking nut and the crank pin, the control device is used for controlling the working state of the pumping unit according to the angle value, and the angle sensor is in wireless connection with the control device. A first component of the angle sensor is arranged on the side wall of the crank pin through an installation seat, and a second component of the angle sensor is positioned on the end face of the locking nut; the mounting seat comprises a mounting ring and a positioning mechanism, and a sliding track extending along the circumferential direction of the mounting ring is arranged on the outer ring of the mounting ring.
Description
Technical Field
The present disclosure relates to the field of oil extraction technologies, and in particular, to a pumping unit monitoring device and a pumping unit system.
Background
The pumping unit is a mechanical device for exploiting petroleum and comprises a pumping rod, a horse head, a walking beam, a connecting rod, a crank, a speed reducer and a motor which are sequentially connected. The mechanical energy provided by the motor is transmitted to the crank through the speed reducer, so that the crank rotates, the crank drives the walking beam to swing through the connecting rod, the horse head is made to reciprocate up and down along with the walking beam, and the pumping rod is driven to reciprocate up and down at the same time, so that the petroleum is pumped out of the shaft.
The crank is connected with the connecting rod through a rod-shaped crank pin, one end of the crank pin penetrates through the crank to be connected with the connecting rod, and a locking nut is fixed at the other end of the crank pin to prevent the crank pin from falling off from the crank.
Along with the long-term operation of pumping unit, lock nut can become flexible, can make the crank pin deviate from the crank and drop, causes the oil field to stop production or other incident.
At present, the phenomenon that locking nut is not hard up is mainly found by patrolling and examining by the staff, but locking nut is not hard up to be found, and the staff can not guarantee to discover and handle at the very first time.
Disclosure of Invention
The embodiment of the disclosure provides a monitoring device of an oil pumping unit and an oil pumping unit system, which can find the loosening phenomenon of a locking nut in time and avoid causing safety accidents. The technical scheme is as follows:
in one aspect, the present disclosure provides a monitoring device for a pumping unit and a pumping unit system, applied to a pumping unit, where the pumping unit includes a connecting rod, a rod-shaped crank pin, a crank and a lock nut, the crank has a crank through hole penetrating through opposite sides of the crank, the crank pin penetrates through the crank through hole, and a first end and a second end of the crank pin respectively extend out from the opposite sides of the crank, the first end of the crank pin is connected with the connecting rod, the second end of the crank pin is fixed with the lock nut, and the first end and the second end are opposite ends of the crank pin; the pumping unit monitoring equipment comprises:
the angle sensor is used for measuring an angle value between the locking nut and the crank pin, and the control device is used for controlling the working state of the oil pumping unit according to the angle value; the angle sensor is wirelessly connected with the control device;
the angle sensor comprises a first component and a second component, the first component is installed on the side wall of the crank pin through an installation seat, the second component is located on the end face of the locking nut, the first component is one of a magnetic field emitter and a magnetic field receiver, and the second component is the other of the magnetic field emitter and the magnetic field receiver;
the mounting base is established including the cover the collar on the crank pin and be located positioning mechanism on the collar, the outer lane of collar is provided with the edge the circumference of collar extends the slip track, first part slidable ground sets up on the slip track, positioning mechanism is used for first part with the relative restriction of second part first part motion.
In one implementation of the disclosed embodiment, the crank pin has a ring-shaped groove corresponding to the mounting ring, and the mounting ring is fixed in the ring-shaped groove;
the sliding rail is an inverted convex rail, and the first component is provided with a concave connecting part matched with the inverted convex rail.
In an implementation manner of the embodiment of the present disclosure, the outer sidewall of the mounting ring has a plurality of through holes arranged at intervals along the circumferential direction of the mounting ring, and the outer sidewall of the first component has a screw rod arranged thereon, and the screw rod penetrates through the through holes to be connected with the nut.
In an implementation manner of the embodiment of the present disclosure, the pumping unit monitoring device further includes a wireless node, and the wireless node is electrically connected to the angle sensor;
the control device includes: the wireless gateway is wirelessly connected with the wireless node, and the wireless gateway is electrically connected with the control cabinet;
the wireless gateway is configured to calculate an angle value between the crank pin and the locking nut according to an electric signal of the angle sensor, and control the pumping unit to stop through the control cabinet when the angle value exceeds a threshold value.
In an implementation manner of the embodiment of the present disclosure, the pumping unit monitoring device further includes a control center device, and the wireless gateway is wirelessly connected to the control center device;
the wireless gateway is configured to send an early warning signal to the control center device when the angle value exceeds a threshold value.
In an implementation manner of the embodiment of the present disclosure, the control center device is configured to acquire a shutdown signal input by a user, and send the shutdown signal to the wireless gateway;
the wireless gateway is further configured to control the pumping unit to stop through the control cabinet when the stop signal is received.
In an implementation manner of the embodiment of the present disclosure, the wireless gateway is further configured to control the pumping unit to stop through the control cabinet when the early warning signal sent by the wireless gateway exceeds a preset time and the angle value still exceeds a threshold value.
In an implementation manner of the embodiment of the present disclosure, the crank pin is circular truncated cone-shaped, and the crank through hole is a circular truncated cone-shaped through hole;
the diameter of the first end of the crank pin is larger than that of the second end of the crank pin, and the diameter of the crank through hole is gradually increased from the locking nut to the connecting rod.
In an implementation manner of the embodiment of the present disclosure, the lock nut has at least two protrusions, the protrusions are connected with an outer ring of the lock nut, and at least two of the protrusions are symmetrically arranged.
On the other hand, this disclosure provides a beam-pumping unit system, beam-pumping unit system includes any above-mentioned beam-pumping unit supervisory equipment and beam-pumping unit, the beam-pumping unit with the switch board electricity is connected.
The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:
in the oil pumping unit, a crank is connected with a connecting rod through a crank pin, the first end of the crank pin is connected with the connecting rod, and the second end of the crank pin is fixed with a locking nut to prevent the crank pin from falling off from the crank. The angle sensor measures an angle value between the locking nut and the crank pin through the first component and the second component, data of the measured angle value is transmitted to the control cabinet, and the control cabinet judges whether the locking nut is loosened or not according to the data of the angle value. When the locking nut is loosened, the control cabinet can control the pumping unit to stop working, so that the pumping unit is prevented from being out of order or causing other safety accidents. Meanwhile, the mounting seat and the positioning mechanism are arranged on the crank pin, the first component is convenient to mount, the position of the first component is adjusted through the sliding track, the positioning mechanism limits the movement of the first component, the first component and the second component are aligned in an initial state, and the accuracy of measurement is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an oil pumping unit provided in an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a monitoring device of a pumping unit according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of a mount provided by embodiments of the present disclosure;
fig. 4 is a block diagram of a monitoring device of a pumping unit provided in an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of an angle sensor provided in an embodiment of the present disclosure;
fig. 6 is a top view of a lock nut provided by embodiments of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an oil pumping unit provided in an embodiment of the present disclosure. Referring to fig. 1, the pumping unit comprises a pumping rod 1, a horse head 2, a walking beam 3, a support frame 4, a balance weight 5, a speed reducer 6, a motor 7, a support table 8, a connecting rod 10, a locking nut 40 and a crank 30. Motor 7 and support frame 4 all are located brace table 8, and support frame 4 is the support frame of triangle structure, and the middle part of walking beam 3 is articulated with the top of support frame 4, and the one end and the connecting rod 10 of walking beam 3 are connected, and connecting rod 10 passes through lock nut 40 and is connected with crank 30, and counter weight 5 is located crank 30, and crank 30 is connected with speed reducer 6, and speed reducer 6 is connected with motor 7. One end of the walking beam 3 is connected with the mule head 2, the mule head 2 is connected with the sucker rod 1, and the sucker rod 1 is connected with an underground oil well pump.
The support table 8 is used for mounting the motor 7 and the support frame 4, and the stability of the motor 7 and the support frame 4 is guaranteed. Support frame 4 is used for installing walking beam 3, and the middle part and the support frame 4 of walking beam 3 are connected and are made walking beam 3 rotate, and walking beam 3 is used for installing horse head 2. The counterweight 5 is located on the crank 30 to make it easier for the crank 30 to swing. The speed reducer 6 can reduce the rotational speed of the output of the motor 7, and at the same time, increase the torque of the mechanical energy output by the motor 7, thereby swinging the crank 30.
In the embodiment of the disclosure, when the pumping unit works, the motor 7 converts electric energy into mechanical energy and transmits the mechanical energy to the speed reducer 6, the speed reducer 6 transmits the mechanical energy to the crank 30, so that the crank 30 rotates, the crank 30 drives the walking beam 3 to swing around the support frame 4 through the connecting rod 10, the horse head 2 reciprocates up and down along with the walking beam 3 and drives the pumping rod 1 to reciprocate up and down, and the pumping rod 1 provides kinetic energy for an underground oil well pump in the process of reciprocating up and down to pump out underground oil.
When the locking nut 40 is loosened, the locking nut 40 may fall off from the crank pin 20, so that the crank pin 20 falls off from the crank 30, the crank 30 cannot be connected with the connecting rod 10, kinetic energy cannot be provided for the oil well pump, the oil well pump cannot work, and other safety accidents can be caused.
Fig. 2 is a schematic structural diagram of a monitoring device of a pumping unit provided in an embodiment of the present disclosure. Referring to fig. 2, the monitoring apparatus for a pumping unit is applied to a pumping unit including a connecting rod 10, a rod-shaped crank pin 20, a crank 30, a lock nut 40, and an angle sensor 50 for measuring an angle value between the lock nut 40 and the crank pin 20.
The crank 30 has crank through-holes 301 penetrating opposite sides of the crank 30, the crank pin 20 passes through the crank through-holes 301, and first and second ends of the crank pin 20 respectively protrude from opposite sides of the crank 30, the first end of the crank pin 20 is connected to the connecting rod 10, the second end of the crank pin 20 is fixed with the locking nut 40, and the first and second ends are opposite ends of the crank pin 20. The angle sensor 50 comprises a first part 501 and a second part 502. A first part 501 is mounted on the side wall of the crank pin 20 by means of a mounting seat (not shown in fig. 2), a second part 502 is located on the end face of the locking nut 40, the first part 501 being one of a magnetic field emitter and a magnetic field receiver and the second part 502 being the other of the magnetic field emitter and the magnetic field receiver.
Fig. 3 is a schematic cross-sectional view of a mount provided in an embodiment of the disclosure. Referring to fig. 3, the mounting seat 90 includes a mounting ring 901 fitted over the crank pin, and a positioning mechanism located on the mounting ring 901, the outer ring of the mounting ring 901 is provided with a sliding track 902 extending along the circumferential direction of the mounting ring 901, the first member 501 is slidably arranged on the sliding track 902, and the positioning mechanism is used for limiting the movement of the first member 501 when the first member 501 is opposite to the second member 502.
Fig. 4 is a block diagram of a monitoring device for a pumping unit according to an embodiment of the present disclosure. Referring to fig. 4, the oil pumping machine monitoring apparatus further includes a control device 60 for controlling the operating state of the oil pumping machine according to the angle value. The angle sensor 50 is wirelessly connected to the control device 60.
In this embodiment, in the pumping unit, the crank 30 is connected to the connecting rod 10 through the crank pin 20, the first end of the crank pin 20 is connected to the connecting rod 10, and the lock nut 40 is fixed to the second end of the crank pin 20, so that the crank pin 20 is prevented from falling off from the crank 30. The angle sensor 50 measures an angle value between the lock nut 40 and the crank pin 20 through the first member 501 and the second member 502, and transmits data of the measured angle value to the control device 60, and the control device 60 judges whether the lock nut 40 is loosened according to the data of the angle value. When the locking nut 40 is loosened, the control device 60 can control the pumping unit to stop working, so that the pumping unit is prevented from being out of order or causing other safety accidents. Meanwhile, the mounting seat 90 and the positioning mechanism are arranged on the crank pin 20, so that the first component 501 is convenient to mount, the position of the first component 501 is adjusted through the sliding track, the positioning mechanism limits the movement of the first component 501, the first component 501 and the second component 502 are aligned in an initial state, and the accuracy of measurement is guaranteed.
In the disclosed embodiment, because the lock nut 40 will rotate, the provision of the slide track 902 on the crank pin 20 facilitates adjustment of the position of the first member 501 to align the first member 501 with the second member 502.
In the embodiment of the present disclosure, the first member 501 transmits a magnetic field signal to the second member 502, the second member 502 outputs a corresponding electrical signal according to the magnitude and direction of the received magnetic field signal, and transmits the electrical signal to the control device 60, and the control device 60 determines the position of the first member 501 according to the electrical signal and determines the rotation angle of the lock nut 40 according to the position of the first member 501. The control device 60 judges whether the lock nut 40 is loosened according to the angle of rotation of the lock nut 40.
As shown in fig. 2, the first part 501 is located on the crank pin 20 and the second part 502 is located on the lock nut 40. It is of course also possible to arrange the first part 501 on the lock nut 40 and the second part 502 on the crank pin 20.
Fig. 5 is a schematic diagram of an angle sensor according to an embodiment of the present disclosure. Referring to fig. 5, a first member 501 is located on the crank pin 20 and a second member 502 is located on the lock nut 40. When the lock nut 40 is turned, the second part 502 is turned, i.e. the angle of turning of the second part 502 in relation to the first part 501 is the angle of turning of the lock nut 40 in relation to the crank pin 20.
In practice, the lock nut 40 is rotated about the crank pin 20, assuming that when the lock nut 40 is rotated in the direction a in fig. 5, it is the direction in which the lock nut 40 is loosened.
In the initial state, the line connecting the first member 501 and the second member 502 passes through the center O of the locking nut 40 and the crank pin 20, and assuming that the first member 501 is located at point a and the second member 502 is located at point B, the magnetic field signal received by the second member 502 is strongest when the first member 501 and the second member 502 are closest to each other.
When the lock nut 40 rotates along the direction a, assuming that the second member 502 rotates from the point B to the point B1, the distance between the first member 501 and the second member 502 increases, the magnetic field signal received by the second member 502 decreases, and the direction of the magnetic field signal also changes, the second member 502 transmits the magnitude and the direction of the changed magnetic field signal to the control device 60 in the form of an electrical signal, and the control device 60 determines the position of the second member 502 according to the electrical signal, so that the length of the AB1 can be obtained. Since the lock nut 40 is rotated about the crank pin 20, the distance OB1 from the center O of the second member 502 is constant and known, the position A of the first member 501 is unchanged and OA is constant and known. In the triangular AOB1, three sides are known, so the shape of the triangular AOB1 is fixed, that is, the size of the ≈ AOB1 can be obtained, the ≈ AOB1 is the rotation angle of the lock nut 40, and the control device 60 determines whether the lock nut 40 is loosened according to the rotation angle of the lock nut 40.
In the embodiment of the present disclosure, since the lock nut 40 and the connecting rod 10 are respectively connected to both ends of the crank pin 20, if the lock nut 40 is rotated in the direction opposite to the direction a during the operation, that is, the lock nut 40 moves toward the crank 30, the connecting rod 10 will block on the crank 30, and the lock nut 40 is prevented from being tightened. In practice, the lock nut 40 will only be turned in the direction a, i.e. there is no situation where the lock nut 40 is tightened more during the turning.
In the embodiment of the present disclosure, the angle sensor 50 may continuously monitor the rotation angle between the lock nut 40 and the crank pin 20, so as to ensure that the loosening condition of the lock nut 40 can be found in time.
In other implementations, the angle sensor 50 may also monitor the rotation angle between the locking nut 40 and the crank pin 20 at intervals to avoid the angle sensor 50 from being damaged due to continuous operation of the angle sensor 50.
Illustratively, the angle sensor 50 may monitor the angle of rotation between the lock nut 40 and the crank pin 20 once every four hours.
Referring to fig. 2 again, the crank pin 20 is in the shape of a circular truncated cone, the crank through hole 301 is in the shape of a circular truncated cone, the diameter of the first end of the crank pin 20 is larger than the diameter of the second end of the crank pin 20, and the diameter of the crank through hole 301 gradually increases from the lock nut 40 to the connecting rod 10.
In this embodiment, the crank pin 20 is formed in a circular truncated cone shape, and one end having a larger diameter is connected to the connecting rod 10, so that the crank pin 20 is prevented from coming out of the crank through hole 301.
When the crank pin 20 is mounted, the second end of the crank pin 20 is inserted into the crank through hole 301 from the larger diameter end of the crank through hole 301, and the second end of the crank pin 20 protrudes from the threaded through hole of the lock nut 40.
In the disclosed embodiment, the taper angle of the frustoconical crank pin 20 may be between 3-5 degrees. The taper angle of the crank through-hole 301 may be between 3-5 degrees.
In the disclosed embodiment, the second end of the crank pin 20 extends through the threaded through hole of the lock nut 40, and the crank pin 20 can be made slightly longer to facilitate installation of the lock nut 40. While facilitating the installation of the angle sensor 50.
Referring again to fig. 2, the diameter of the crank through hole 301 is greater than the diameter of the crank pin 20. The crank pin 20 is ensured to move smoothly in the crank through hole 301, and the installation is convenient.
Illustratively, the difference between the diameter of the crank through-hole 301 and the diameter of the crank pin 20 may range between 1 mm and 5 mm.
For example, the difference between the diameter of the crank through hole 301 and the diameter of the crank pin 20 may be 1.2 millimeters.
As shown in fig. 2, the pumping unit further includes a connection ring 101, a fixing rod 102 and a connection bolt 103. The fixing rod 102 is fixedly connected to the second end of the crank pin 20, the connection ring 101 is connected to the fixing rod 102, and the connection rod 10 is connected to the connection ring 101 through the connection bolt 103.
In this implementation, during the rotation of the crank 30, the crank pin 20 rotates in the crank through hole 301, so as to drive the connection ring 101, the fixing rod 102 and the connection rod 10 to rotate, so that the center line of the connection rod 10 passes through the center of the circle of the locking nut 40, thereby facilitating the connection between the connection rod 10 and the crank 30.
Referring again to fig. 2, the crank pin 20 has a ring-shaped groove 201 corresponding to the mounting ring 901, which is secured in the ring-shaped groove 201. Referring again to fig. 3, the sliding rail 902 is an inverted convex rail, and the first member 501 has a concave connecting portion that matches the inverted convex rail.
In this implementation, the slide rail 902 is arranged as an inverted convex rail, and the slide rail 902 is connected to the first member 501 by a connection portion of the inverted convex and the concave on the first member 501, so that the first member 501 can slide on the slide rail 902.
Referring to fig. 3 again, the outer side wall of the mounting ring 901 is provided with a plurality of through holes 903 arranged at intervals along the circumferential direction of the mounting ring 901, the outer side wall of the first member 501 is provided with a screw 511, and the screw 511 passes through the through holes 903 and is connected with the nut.
In this implementation, a screw 511 is disposed on an outer side wall of the first member 501, and the first member 501 is fixed by the screw 511, the through hole 903, and the nut, so that the first member 501 is prevented from falling off.
Referring again to fig. 4, the pumping unit monitoring device further comprises a wireless node 70, and the wireless node 70 is electrically connected with the angle sensor 50.
The control device 60 includes: the wireless gateway 601 is wirelessly connected with the wireless node 70, and the wireless gateway 601 is electrically connected with the control cabinet 602. And the wireless gateway 601 is configured to calculate an angle value between the crank pin 20 and the lock nut 40 according to the electric signal of the angle sensor 50, and control the pumping unit to stop through the control cabinet 602 when the angle value exceeds a threshold value.
In this implementation, the wireless node 70 is a wireless transmission device, the second component 502 converts the data of the magnitude and direction of the received magnetic field signal into an electrical signal and transmits the electrical signal to the wireless gateway 601 through the wireless node 70, the wireless gateway 601 calculates the position of the lock nut 40 according to the data of the received electrical signal, and finally calculates the angle value between the crank pin 20 and the lock nut 40, namely the angle AOB 1. When the angle value between the crank pin 20 and the locking nut 40 exceeds a threshold value, the wireless gateway 601 sends a stop electric signal to the control cabinet 602, and the control cabinet 602 receives the stop signal and then controls the pumping unit to stop.
Referring to fig. 4 again, the pumping unit monitoring device further includes a control center device 80, and the wireless gateway 601 is wirelessly connected to the control center device 80. And the wireless gateway 601 is configured to send an early warning signal to the control center device 80 when the angle value exceeds the threshold value.
In this implementation manner, the wireless gateway 601 calculates an angle value between the crank pin 20 and the lock nut 40 according to the data of the received electrical signal, and when the angle value between the crank pin 20 and the lock nut 40 exceeds a threshold value, sends an early warning electrical signal to the control center device 80, and the center device 80 receives the early warning electrical signal sent by the wireless gateway 601, and sends an early warning signal to prompt a worker that the lock nut 40 is loosened. After seeing the early warning signal, the staff can overhaul the locking nut 40, and the work of the pumping unit is avoided being influenced.
In the embodiment of the present disclosure, the center device 80 may be located in the control center of the pumping unit, so as to ensure that the staff can see the early warning information in time when observing the operation of the pumping unit in the control center, and overhaul the locking nut 40.
Illustratively, the warning message sent by the center device 80 may be an alert tone, for example, when the lock nut 40 is loosened, the center device 80 may send a "beep" alert tone as well as an "lock nut loosened" alert tone.
In another implementation, the warning message issued by the center device 80 may be a prompt text box, for example, a text box that displays "the lock nut has loosened" on the screen of the control center when the lock nut 40 is loosened.
In the disclosed embodiment, the threshold ranges between 40 degrees and 80 degrees.
In this implementation, the pumping unit is in the work observation, and lock nut 40 can rotate unavoidably, just sends out early warning information if lock nut 40 rotates, and early warning information can be too frequent, influences staff's work. The threshold value is set between 40 degrees and 100 degrees, so that the condition that the early warning information is too frequent is avoided, and the condition that the locking nut 40 is not loosened can be timely found.
Illustratively, the threshold may be 60 degrees, and when the rotation angle between the lock nut 40 and the crank pin 20 exceeds 60 degrees, the control cabinet 602 sends an early warning signal to the center device 80 to indicate to the staff that the lock nut 40 is loosened.
In the embodiment of the present disclosure, the control center device 80 is configured to acquire the shutdown signal input by the user and send the shutdown signal to the wireless gateway 601. And the wireless gateway 601 is further configured to control the pumping unit to stop through the control cabinet 602 when the stop signal is received.
In this implementation manner, after seeing the warning signal, the worker can input a shutdown signal to the central device 80, the central device 80 sends the shutdown signal to the wireless gateway 601, the wireless gateway 601 sends the shutdown signal to the control cabinet 602, and the control cabinet 602 controls the pumping unit to shutdown. The working of the pumping unit is convenient to control by the working personnel.
In the embodiment of the present disclosure, the wireless gateway 601 is further configured to control the pumping unit to stop through the control cabinet 602 when the early warning signal sent by the wireless gateway 601 exceeds the preset time length and the angle value still exceeds the threshold value.
In this implementation, when the angle between the locking nut 40 and the crank pin 20 exceeds the threshold, the central device 80 first sends out an early warning signal, and when the early warning signal is not processed all the time and when the angle between the locking nut 40 and the crank pin 20 still exceeds the threshold, the wireless gateway 601 sends out a stop signal to the control cabinet 602, and the control cabinet 602 controls the pumping unit to be closed, so as to avoid causing pumping unit failure or causing other safety accidents.
In the embodiment of the disclosure, the preset duration ranges from 3 minutes to 7 minutes, so that the condition that the pumping unit fails to see the early warning prompt in time and other safety accidents are caused is avoided.
Illustratively, the preset time period may be 5 minutes, and when the warning signal sent by the central device 80 exceeds 5 minutes, the control cabinet 602 controls the pumping unit to be turned off.
In the disclosed embodiment, the wireless gateway 601 may be a network base station that not only can calculate the angle value between the crank pin 20 and the lock nut 40 according to the data of the received electrical signal, but also can provide a network for the wireless node 70, the control center device 80, and the control cabinet 602. The signal transmission among the wireless gateway 601, the wireless node 70, the control center device 80 and the control cabinet 602 is smooth, and the problem that the locking nut 40 cannot be found to be loosened in time due to poor signal transmission caused by a network is avoided.
In the embodiment of the present disclosure, the network provided by the network base station may be at least one of a third generation mobile communication technology (3G), a fourth generation mobile communication technology (4G), a fifth generation mobile communication technology (5G), and a sixth generation mobile communication technology (6G), so as to ensure accuracy and fluency of wireless transmission.
Fig. 6 is a top view of a lock nut according to an embodiment of the present disclosure, and referring to fig. 6, the lock nut 40 includes at least two protrusions 401, the protrusions 401 are disposed to be coupled to an outer ring of the lock nut 40, and the at least two protrusions 401 are symmetrically disposed.
In this implementation, the projection 401 is disposed on the lock nut 40, grasping the projection 401 facilitates turning the lock nut 40, and the lock nut 40 can be mounted on the crank pin 20 by turning the projection 401 to turn the lock nut 40 when mounting the lock nut 40. The lock nut 40 may also be removed from the crank pin 20 by turning the lock nut 40 through the protrusion 401.
As shown in fig. 6, four protrusions 401 are disposed on the lock nut 40, and when the lock nut 40 is rotated, the protrusions 401 are also rotated, so that different protrusions 401 can be switched to rotate the lock nut 40, which is more convenient.
The utility model provides a beam-pumping unit monitoring system, the solution is patrolled and examined staff and is patrolled and examined the time and naked eye and observe, can not in time discover machine beam-pumping unit crank pin lock nut and take place not hard up trouble, also can not arrive the on-the-spot processing the very first time to cause the problem of equipment accident. The method comprises the steps of collecting operation condition generation data of the crank pin of the oil pumping unit on site on the oil pumping unit which normally operates, and reflecting the operation condition of the crank pin of the oil pumping unit in time. The information of the measuring sensor is transmitted to a system receiver in a wireless transmitting mode, and then is displayed, stored and uploaded to a network by a signal receiver, and then is displayed on a control center platform, so that an operator can timely find the fault that a crank pin locking nut of the pumping unit is loosened, the operator can arrive at the site for processing at the first time, and if the operator cannot arrive at the site for processing in time, the controller stops the pumping unit to avoid equipment accidents.
The embodiment of the present disclosure further provides a pumping unit system, which includes a pumping unit monitoring device and a pumping unit, wherein the pumping unit is electrically connected to the control cabinet.
In the oil pumping unit, a crank is connected with a connecting rod through a crank pin, the first end of the crank pin is connected with the connecting rod, and the second end of the crank pin is fixed with a locking nut to prevent the crank pin from falling off from the crank. The electric energy provided by the motor is transmitted to the crank through the speed reducer, so that the crank rotates, the crank drives the walking beam to swing through the connecting rod, the horse head reciprocates up and down along with the walking beam and drives the sucker rod to reciprocate up and down, and the sucker rod pumps out underground petroleum in the process of reciprocating up and down. The angle sensor measures an angle value between the locking nut and the crank pin, data of the measured angle value is transmitted to the control cabinet, and the control cabinet judges whether the locking nut is loosened or not according to the data of the angle value. When the locking nut is loosened, the control cabinet can control the pumping unit to stop working, so that the pumping unit is prevented from being in fault or other safety accidents.
The pumping unit system provided by the disclosure solves the problem that the well cannot be found and stopped in time by completely depending on staff for inspection. The pumping unit system realizes automatic monitoring and protection functions, and when the tight nut is loosened, the monitoring device automatically monitors and sends a signal to stop the pumping unit, so that the pumping unit does not need to be simply stopped by staff for inspection and manual operation.
The pumping unit system provided by the disclosure solves the problems that other faults are generated, so that the workload of staff is increased, the production cost is increased, and the normal production of an oil well is influenced.
The pumping unit system realizes automatic well stopping when the fastening nut is loosened, and the loosening of the fastening nut cannot occur, so that the production stopping of an oil well is caused. When the tightening nut is loosened, an alarm is given in time to warn workers, and then targeted measures can be taken for processing to recover oil well production.
The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.
Claims (10)
1. A monitoring device of an oil pumping unit is applied to the oil pumping unit, the oil pumping unit comprises a connecting rod (10), a rod-shaped crank pin (20), a crank (30) and a locking nut (40), the crank (30) is provided with a crank through hole (301) penetrating through two opposite surfaces of the crank (30), the crank pin (20) penetrates through the crank through hole (301), a first end and a second end of the crank pin (20) respectively extend out of the two opposite surfaces of the crank (30), the first end of the crank pin (20) is connected with the connecting rod (10), the second end of the crank pin (20) is fixed with the locking nut (40), and the first end and the second end are two opposite ends of the crank pin (20); it is characterized in that the monitoring equipment of the oil pumping unit comprises:
an angle sensor (50) for measuring an angle value between the lock nut (40) and the crank pin (20) and a control device (60) for controlling the working state of the pumping unit according to the angle value; the angle sensor (50) is wirelessly connected with the control device (60);
the angle sensor (50) comprises a first component (501) and a second component (502), the first component (501) is installed on the side wall of the crank pin (20) through an installation seat (90), the second component (502) is located on the end face of the locking nut (40), the first component (501) is one of a magnetic field emitter and a magnetic field receiver, and the second component (502) is the other of the magnetic field emitter and the magnetic field receiver;
the mounting seat (90) comprises a mounting ring (901) sleeved on the crank pin (20) and a positioning mechanism located on the mounting ring (901), a sliding rail (902) extending along the circumferential direction of the mounting ring (901) is arranged on the outer ring of the mounting ring (901), the first component (501) is slidably arranged on the sliding rail (902), and the positioning mechanism is used for limiting the movement of the first component (501) when the first component (501) is opposite to the second component (502).
2. Monitoring device of a pumping unit according to claim 1, characterized in that the crank pin (20) has a ring-shaped groove corresponding to the mounting ring (901), the mounting ring (901) being fixed in the ring-shaped groove;
the sliding rail (902) is an inverted convex rail, and the first component (501) is provided with a concave connecting part matched with the inverted convex rail.
3. The monitoring equipment of the oil pumping unit according to claim 2, characterized in that the outer side wall of the mounting ring (901) is provided with a plurality of through holes (903) which are arranged at intervals along the circumferential direction of the mounting ring (901), the outer side wall of the first component (501) is provided with a screw rod (511), and the screw rod (511) penetrates through the through holes (903) to be connected with a nut.
4. Pumping unit monitoring device according to any of claims 1 to 3, characterized in that it further comprises a wireless node (70), said wireless node (70) being electrically connected with said angle sensor (50);
the control device (60) includes: a wireless gateway (601) and a control cabinet (602), wherein the wireless gateway (601) is wirelessly connected with the wireless node (70), and the wireless gateway (601) is electrically connected with the control cabinet (602);
the wireless gateway (601) is configured to calculate an angle value between the crank pin (20) and the lock nut (40) according to an electric signal of the angle sensor (50), and control the pumping unit to stop through the control cabinet (602) when the angle value exceeds a threshold value.
5. The pump monitoring device according to claim 4, further comprising a control center device (80), wherein the wireless gateway (601) is wirelessly connected to the control center device (80);
the wireless gateway (601) is configured to send an early warning signal to the control center device (80) when the angle value exceeds a threshold value.
6. The pump-pumping unit monitoring device according to claim 5, wherein the control center device (80) is configured to acquire a shutdown signal input by a user and send the shutdown signal to the wireless gateway (601);
the wireless gateway (601) is further configured to control the pumping unit to stop through the control cabinet (602) when the stop signal is received.
7. Pumping unit monitoring device according to claim 5,
the wireless gateway (601) is further configured to control the pumping unit to stop through the control cabinet (602) when the early warning signal sent by the wireless gateway (601) exceeds a preset time length and the angle value still exceeds a threshold value.
8. A monitoring device of a pumping unit according to any of claims 1 to 3, characterized in that the crank pin (20) is truncated cone-shaped, and the crank through hole (301) is a truncated cone-shaped through hole;
the diameter of the first end of the crank pin (20) is larger than that of the second end of the crank pin (20), and the diameter of the crank through hole (301) is gradually increased from the locking nut (40) to the connecting rod (10).
9. Pumping unit monitoring device according to any of claims 1 to 3, wherein the locking nut (40) has at least two protrusions (401), the protrusions (401) being connected to the outer ring of the locking nut (40), at least two of the protrusions (401) being symmetrically arranged.
10. A pumping unit system comprising a pumping unit monitoring device according to any one of claims 1 to 9 and a pumping unit, the pumping unit being electrically connected to the control cabinet.
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| CN202010457032.XA CN113790696B (en) | 2020-05-26 | 2020-05-26 | Pumping unit monitoring equipment and pumping unit system |
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| CN202010457032.XA CN113790696B (en) | 2020-05-26 | 2020-05-26 | Pumping unit monitoring equipment and pumping unit system |
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| CN110345149A (en) * | 2019-08-13 | 2019-10-18 | 东营恒科精密金属有限公司 | One kind is based on information-based intrinsic safety type oil pumping machine crank pin assembly |
| CN210039056U (en) * | 2019-05-27 | 2020-02-07 | 中国石油化工股份有限公司 | Crank pin assembly safety alarm device of pumping unit |
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| CN201035698Y (en) * | 2007-03-20 | 2008-03-12 | 中国石油天然气股份有限公司 | Crank pin back-off alarm device of pumping unit |
| WO2014059749A1 (en) * | 2012-10-19 | 2014-04-24 | 中国石油天然气集团公司 | Pumping unit capable of automatically adjusting balance |
| CN208432245U (en) * | 2018-06-28 | 2019-01-25 | 国电联合动力技术有限公司 | A kind of high-strength bolt loosens monitoring device and its angular transducer, generating set |
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| CN113790696B (en) | 2023-06-30 |
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