Multi-zone temperature control oil casing heat treatment device

Abstract

The utility model discloses an oil casing heat treatment device with multi-zone temperature control, which relates to the technical field of oil casing processing equipment and comprises a bottom bearing frame, a second speed reducing motor is mounted on the left side of the rear end of the conveying bearing frame, and a heating component capable of realizing multi-zone temperature control is arranged at the top of the conveying bearing frame. According to the multi-zone temperature control oil casing pipe heat treatment device, the heat preservation cover, the induction coils, the frequency conversion controllers, the main control wiring harness, the branch wires and the PLC are arranged, when the multi-zone temperature control oil casing pipe heat treatment device is used, the induction coils conduct electricity to work, so that the pipe wall of the oil casing pipe is heated automatically, and each induction coil and the frequency conversion controller operate independently; according to the multi-zone temperature control device, independent temperature rise can be carried out in different zones of a pipeline, the main control wire harness, the branch wires and the PLC are in butt joint, the PLC carries out total scheduling, the function of multi-zone temperature control is achieved, and the problem that the device does not have the function of multi-zone temperature control is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil casing processing equipment, and particularly relates to an oil casing heat treatment device with multi-zone temperature control. Background Technique

[0002] Oil casings are steel pipes used to support the well walls of oil and gas wells to ensure the progress of the drilling process and the normal operation of the entire oil well after completion. For each well, several layers of casings are required according to different drilling depths and geological conditions. As large-diameter pipes, the main material of oil casings is steel.

[0003] With the continuous deepening of oil and gas exploration and development, the accuracy requirements for oil casings are getting higher and higher. High-precision oil casings are of great significance in ensuring the safety of oil and gas wells, extending service life, and reducing maintenance costs. However, there are certain limitations in the existing production processes. For example, during heat treatment, the heating elements in the heating zone are usually a whole set, and the power is the same during operation, and it cannot perform local temperature control and adjustment according to the wall thickness at different positions of the casing, and does not have the function of multi-zone temperature control.

[0004] Now, a new type of oil casing heat treatment device with multi-zone temperature control is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an oil casing heat treatment device with multi-zone temperature control to solve the problem of lacking the function of multi-zone temperature control proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An oil casing heat treatment device with multi-zone temperature control, including a bottom bearing frame, a first fixing frame is fixedly connected to the right side of the top of the bottom bearing frame, three groups of carrying rollers are movably connected between the front and rear ends inside the first fixing frame, three groups of first reduction motors are installed at the rear end of the first fixing frame, a pressure roller is arranged above the carrying rollers, a conveying bearing frame is fixedly connected to the left side of the top of the bottom bearing frame, multiple groups of conveying rollers are movably connected between the front and rear ends inside the conveying bearing frame, a second reduction motor is installed on the left side of the rear end of the conveying bearing frame, and a heating component capable of multi-zone temperature control is arranged on the top of the conveying bearing frame.

[0007] The heating component includes a heat preservation cover, the heat preservation cover is fixedly connected to the top end of the conveying bearing frame, multiple groups of induction coils are fixedly connected to the front end inside the heat preservation cover, multiple groups of frequency conversion controllers are fixedly connected to the front end of the heat preservation cover, a main control wire harness is arranged above the frequency conversion controllers, a branch wire is installed between the bottom end of the main control wire harness and the top end of the frequency conversion controllers, and a PLC programmable logic controller is fixedly connected to the left side of the front end of the heat preservation cover.

[0008] Preferably, the induction coil is located at the gap between the conveying rollers, and the left and right sides of the induction coil do not contact the conveying rollers.

[0009] Preferably, the front end of the induction coil is connected to the rear end of the frequency conversion controller, and the induction coil and the frequency conversion controller are electrically connected.

[0010] Preferably, the main control wire harness is connected to the PLC programmable logic controller, and the frequency conversion controller, the main control wire harness, the splice wire, and the PLC programmable logic controller are electrically connected.

[0011] Preferably, three groups of adjustment chutes are respectively arranged at the front and rear ends of the first fixing frame. H-shaped sliding seats are respectively movably connected to the front and rear ends of the pressure roller. A pressure sensor is installed at the top of the H-shaped sliding seat. Three groups of hydraulic cylinders are respectively installed at the front and rear ends of the top of the first fixing frame. A first mounting frame is fixedly connected to the right side of the top of the first fixing frame. A first CCD camera is installed at the middle position of the bottom end of the first mounting frame. A second mounting frame is fixedly connected to the left side of the top of the first fixing frame. A second CCD camera is installed at the middle position of the bottom end of the second mounting frame.

[0012] Preferably, the outer shape and size of the H-shaped sliding seat are adapted to the inner shape and size of the adjustment chute. The H-shaped sliding seat can slide up and down along the inside of the adjustment chute. The top end of the pressure sensor is connected to the bottom end of the hydraulic cylinder.

[0013] Preferably, multiple groups of positioning screw holes are respectively arranged at the front and rear ends of the top of the conveying roller. Sliding sleeves are respectively sleeved on the front and rear ends of the outside of the conveying roller. A tapered sleeve is fixedly connected to the outside of the sliding sleeve. Hand-tightening bolts are respectively inserted into the upper and lower ends of the sliding sleeve.

[0014] Preferably, the inner diameter of the sliding sleeve is adapted to the outer diameter of the conveying roller. The sliding sleeve can slide back and forth along the outside of the conveying roller. The positioning screw holes are arranged at equal intervals.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The heat treatment device for oil casing with multi-zone temperature control not only realizes the function of multi-zone temperature control, but also realizes the function of straightening pressure adjustment, and also realizes the function of adjustable restriction of the position of the pipe fitting;

[0016] (1) By setting up a heat preservation cover, induction coils, a frequency conversion controller, a main control wire harness, a splice wire, and a PLC programmable logic controller, during use, the straightened oil casing continuously advances under the conveyance of the conveying rollers. As the oil casing completely enters the heat preservation cover, the conveying rollers stop moving. Meanwhile, the induction coils conduct electricity, and the coils generate a rapidly changing magnetic field. When the alternating magnetic lines of force in the magnetic field pass through the metal pipe, the wall of the oil casing itself generates heat. Each induction coil and its frequency conversion controller operate independently, and can independently raise the temperature in different areas of the pipe. Through the connection of the main control wire harness, splice wire, and PLC programmable logic controller, and under the overall scheduling of the PLC programmable logic controller, the function of multi-zone temperature control is achieved;

[0017] (2) By setting up a first mounting bracket, a first CCD camera, an adjustment chute, a pressure roller, an H-shaped sliding seat, a pressure sensor, a hydraulic cylinder, a second mounting bracket, and a second CCD camera, when the pipe blank enters the first fixing bracket, the first CCD camera on the first mounting bracket collects the image information of the pipe to judge the bending deformation condition of the pipe. During the straightening operation, the first reduction motor drives the bearing rollers to continuously rotate, and the pressure roller continuously presses down, cooperating with the bearing rollers to straighten the pipe. The pressure sensor can feedback the real-time pressure of the pressure roller. When the pressure shows an obvious fluctuation, it indicates that there is deformation at the corresponding position of the pipe, and the subsequent hydraulic cylinder adjusts the pressure automatically for pressure straightening. The hydraulic cylinder drives the H-shaped sliding seat to displace up and down in the adjustment chute to adjust the actual pressure of the pressure roller. The second CCD camera on the second mounting bracket collects the information of the straightened pipe, which is convenient for subsequent tracking and judgment, and the function of adjusting the straightening pressure is achieved;

[0018] (3) By setting up positioning screw holes, sliding sleeves, tapered sleeves, and hand-tightening bolts, during use, according to the actual size of the pipe, the actual position of the tapered sleeve on the conveying rollers can be adjusted to limit the moving path of the pipe during transportation, so that it always remains at the center position of the induction coils. When adjusting, loosen and pull out the hand-tightening bolt, and the sliding sleeve together with the tapered sleeve can displace back and forth along the conveying rollers. After adjusting to the appropriate position, re-insert the hand-tightening bolt, and when the hand-tightening bolt is stuck into the positioning screw hole, the fixing is completed. Multiple groups of positioning screw holes enable it to match pipes of various specifications, and the function of adjustable limiting of the position of pipe fittings is achieved. Brief Description of the Drawings

[0019] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0020] Figure 2 It is a top view partial sectional structural schematic diagram of the conveying and bearing frame of the present utility model;

[0021] Figure 3 It is a side view structural schematic diagram of the heat preservation cover of the present utility model;

[0022] Figure 4 Schematic side view structure of the first fixing frame of the present utility model;

[0023] Figure 5 Schematic top view structure of the pressure roller of the present utility model.

[0024] In the figure: 1, bottom bearing frame; 2, first fixing frame; 3, bearing roller; 4, first reduction motor; 5, first mounting frame; 6, first CCD camera; 7, adjustment chute; 8, pressure roller; 9, H-shaped sliding seat; 10, pressure sensor; 11, hydraulic cylinder; 12, second mounting frame; 13, second CCD camera; 14, conveying bearing frame; 15, conveying roller; 16, second reduction motor; 17, heat preservation cover; 18, induction coil; 19, frequency conversion controller; 20, main control wire harness; 21, branch connection wire; 22, PLC programmable logic controller; 23, positioning screw hole; 24, sliding sleeve; 25, tapered sleeve; 26, hand-tightening bolt. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1: Please refer to Figures 1-5 , an oil casing heat treatment device with multi-zone temperature control, including a bottom bearing frame 1, a first fixing frame 2 fixedly connected to the right side of the top of the bottom bearing frame 1, three groups of bearing rollers 3 movably connected between the front and rear ends inside the first fixing frame 2, three groups of first reduction motors 4 installed at the rear end of the first fixing frame 2, a pressure roller 8 arranged above the bearing rollers 3, a conveying bearing frame 14 fixedly connected to the left side of the top of the bottom bearing frame 1, multiple groups of conveying rollers 15 movably connected between the front and rear ends inside the conveying bearing frame 14, a second reduction motor 16 installed on the left side of the rear end of the conveying bearing frame 14, and a heating component capable of multi-zone temperature control arranged on the top of the conveying bearing frame 14;

[0027] Please refer to Figures 1-5, A heat treatment device for oil casing with multi-zone temperature control further includes a heating component. The heating component includes a heat preservation cover 17, which is fixedly connected to the top of the conveying and supporting frame 14. At the front end inside the heat preservation cover 17, a plurality of induction coils 18 are fixedly connected. At the front end of the heat preservation cover 17, a plurality of frequency conversion controllers 19 are fixedly connected. Above the frequency conversion controller 19, there is a main control wire harness 20. Between the bottom end of the main control wire harness 20 and the top end of the frequency conversion controller 19, a branch connection wire 21 is installed. On the left side of the front end of the heat preservation cover 17, a PLC programmable logic controller 22 is fixedly connected;

[0028] The induction coils 18 are located at the gaps between the conveying rollers 15. The left and right sides of the induction coils 18 do not contact the conveying rollers 15. The front end of the induction coils 18 is connected to the rear end of the frequency conversion controller 19. The induction coils 18 and the frequency conversion controller 19 are electrically connected. The main control wire harness 20 and the PLC programmable logic controller 22 are connected. The frequency conversion controller 19, the main control wire harness 20, the branch connection wire 21, and the PLC programmable logic controller 22 are electrically connected, enabling zonal heating and independent control;

[0029] Specifically, as Figure 1 , Figure 2 and Figure 3 shown, when the induction coils 18 conduct electricity, a high-speed changing magnetic field will be generated in the coils. When the alternating magnetic force lines in the magnetic field pass through the metal pipe, the wall of the oil casing will heat up by itself. Each induction coil 18 and its frequency conversion controller 19 operate independently, and independent temperature rise can be carried out in different areas of the pipe. Through the connection of the main control wire harness 20, the branch connection wire 21, and the PLC programmable logic controller 22, the PLC programmable logic controller 22 conducts overall scheduling.

[0030] Embodiment 2: Three sets of adjustment chutes 7 are respectively arranged at the front and rear ends of the first fixing frame 2. At the front and rear ends of the pressure roller 8, H-shaped sliding seats 9 are respectively movably connected. At the top of the H-shaped sliding seat 9, a pressure sensor 10 is installed. At the front and rear ends of the top of the first fixing frame 2, three sets of hydraulic cylinders 11 are respectively installed. On the right side of the top of the first fixing frame 2, a first mounting frame 5 is fixedly connected. At the middle position of the bottom end of the first mounting frame 5, a first CCD camera 6 is installed. On the left side of the top of the first fixing frame 2, a second mounting frame 12 is fixedly connected. At the middle position of the bottom end of the second mounting frame 12, a second CCD camera 13 is installed. The external shape and size of the H-shaped sliding seat 9 are adapted to the internal shape and size of the adjustment chute 7. The H-shaped sliding seat 9 can slide up and down along the inside of the adjustment chute 7. The top end of the pressure sensor 10 is connected to the bottom end of the hydraulic cylinder 11, enabling adjustment of the straightening pressure and making the straightening operation more flexible;

[0031] Specifically, as Figure 1 , Figure 4 and Figure 5As shown, the first CCD camera 6 on the first mounting bracket 5 collects pipeline image information to judge the bending deformation condition of the pipeline. During the straightening operation, the first reduction motor 4 drives the carrier roller 3 to rotate continuously, and the pressure roller 8 presses down continuously. Cooperating with the carrier roller 3, the pipeline is straightened. The pressure sensor 10 can feedback the real-time pressure of the pressure roller 8. When there is an obvious pressure fluctuation, it indicates that there is deformation at the corresponding position of the pipeline. Then the subsequent hydraulic cylinder 11 adjusts the pressure by itself for pressurized straightening. The hydraulic cylinder 11 displaces up and down in the adjustment chute 7 through the traction H-shaped sliding seat 9 to adjust the actual pressure of the pressure roller 8. The second CCD camera 13 on the second mounting bracket 12 collects the information of the pipeline after straightening.

[0032] Embodiment 3: A plurality of groups of positioning screw holes 23 are respectively arranged at the front and rear ends of the top of the conveying roller 15. The front and rear ends of the outside of the conveying roller 15 are respectively sleeved with sliding sleeves 24. A tapered sleeve 25 is fixedly connected to the outside of the sliding sleeve 24. Hand-tightening bolts 26 are respectively inserted into the upper and lower ends of the sliding sleeve 24. The inner diameter of the sliding sleeve 24 is adapted to the outer diameter of the conveying roller 15. The sliding sleeve 24 can slide back and forth along the outside of the conveying roller 15. The positioning screw holes 23 are arranged at equal intervals and can be adjusted and limited according to the size specifications of the pipeline to ensure the stability of the position of the pipeline during transportation.

[0033] Specifically, as Figure 2 and Figure 3 shown, loosen and pull out the hand-tightening bolts 26, and the sliding sleeve 24 together with the tapered sleeve 25 can displace back and forth along the conveying roller 15. After adjusting to the appropriate position, re-insert the hand-tightening bolts 26. When the hand-tightening bolts 26 are stuck into the positioning screw holes 23, the fixing is completed. The plurality of groups of positioning screw holes 23 enable it to match pipelines of various specifications.

[0034] Working principle: When the present utility model is in use, first, when the pipe blank enters the first fixing frame 2, the first CCD camera 6 on the first mounting frame 5 collects the pipe image information to judge the bending deformation condition of the pipe. During the straightening operation, the first reduction motor 4 drives the carrying roller 3 to rotate continuously, and the pressure roller 8 presses down continuously. Cooperating with the carrying roller 3, the pipe is straightened. The pressure sensor 10 can feedback the real-time pressure of the pressure roller 8. When there is an obvious pressure fluctuation, it indicates that there is deformation at the corresponding position of the pipe. Then, the subsequent hydraulic cylinder 11 adjusts the pressure by itself for pressure straightening. The hydraulic cylinder 11 moves up and down in the adjustment chute 7 through the traction H-shaped sliding seat 9 to adjust the actual pressure of the pressure roller 8. The second CCD camera 13 on the second mounting frame 12 collects the information of the pipe after straightening, which is convenient for subsequent tracking and judgment. The straightened oil casing continuously advances under the conveyance of the conveyance roller 15. As the oil casing completely enters the heat preservation cover 17, the conveyance roller 15 stops moving. At the same time, the induction coil 18 conducts electricity. The coil will generate a magnetic field with high-speed change. When the alternating magnetic force lines in the magnetic field pass through the metal pipe, the pipe wall of the oil casing itself generates heat. Each induction coil 18 and its frequency conversion controller 19 operate independently and can independently heat up different areas of the pipe. They are connected through the main control wire harness 20, the branch connection wire 21 and the PLC programmable logic controller 22, and are overall scheduled by the PLC programmable logic controller 22. According to the actual size of the pipe, the actual position of the tapered sleeve 25 on the conveyance roller 15 can be adjusted to limit the movement path of the pipe during transportation and keep it always at the central position of the induction coil 18. When adjusting, loosen and pull out the hand-tightening bolt 26, and the sliding sleeve 24 together with the tapered sleeve 25 can move back and forth along the conveyance roller 15. After adjusting to the appropriate position, re-insert the hand-tightening bolt 26. When the hand-tightening bolt 26 is stuck into the positioning screw hole 23, the fixation is completed. The multiple groups of positioning screw holes 23 enable it to match pipes of various specifications.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A multi-zone temperature controlled oil casing heat treatment device, comprising a bottom support frame (1), characterized in that: The right side of the top of the bottom carrier frame (1) is fixedly connected to a first fixed frame (2), three groups of bearing rollers (3) are movably connected between the front and rear ends inside the first fixed frame (2), three groups of first reduction motors (4) are installed at the rear end of the first fixed frame (2), and a pressure roller (8) is arranged above the bearing roller (3), the left side of the top of the bottom carrier frame (1) is fixedly connected to a conveying carrier frame (14), multiple groups of conveying rollers (15) are movably connected between the front and rear ends inside the conveying carrier frame (14), a second reduction motor (16) is installed on the left side of the rear end of the conveying carrier frame (14), and a heating component capable of multi-zone temperature control is arranged on the top of the conveying carrier frame (14); The heating component comprises a heat-insulating cover (17), the heat-insulating cover (17) is fixedly connected to the top end of the conveying carrier (14), a plurality of induction coils (18) are fixedly connected to the front end of the heat-insulating cover (17), a plurality of frequency conversion controllers (19) are fixedly connected to the front end of the heat-insulating cover (17), a main control harness (20) is arranged above the frequency conversion controller (19), a tapping wire (21) is installed between the bottom end of the main control harness (20) and the top end of the frequency conversion controller (19), and a PLC programmable logic controller (22) is fixedly connected to the left side of the front end of the heat-insulating cover (17).

2. The multi-zone temperature controlled oil casing heat treatment device according to claim 1, characterized in that: The induction coil (18) is located at the gap between the conveying rollers (15), and the left and right sides of the induction coil (18) are not in contact with the conveying rollers (15).

3. The multi-zone temperature controlled oil casing heat treatment device according to claim 1, characterized in that: The front end of the induction coil (18) is connected to the rear end of the frequency conversion controller (19), and the induction coil (18) and the frequency conversion controller (19) are electrically connected.

4. The multi-zone temperature controlled oil casing heat treatment device according to claim 1, characterized in that: The main control harness (20) and the PLC programmable logic controller (22) are connected, and the frequency conversion controller (19), the main control harness (20), the tapping wire (21), and the PLC programmable logic controller (22) are electrically connected.

5. The multi-zone temperature controlled oil casing heat treatment device according to claim 1, characterized in that: Three groups of adjusting slide grooves (7) are respectively arranged at the front and rear ends of the first fixed frame (2); the front and rear ends of the pressure roller (8) are respectively movably connected with an H-shaped sliding seat (9); a pressure sensor (10) is installed at the top of the H-shaped sliding seat (9); three groups of hydraulic cylinders (11) are respectively installed at the front and rear ends of the top of the first fixed frame (2); a first mounting frame (5) is fixedly connected to the right side of the top of the first fixed frame (2); a first CCD camera (6) is installed at the middle position of the bottom end of the first mounting frame (5); a second mounting frame (12) is fixedly connected to the left side of the top of the first fixed frame (2); a second CCD camera (13) is installed at the middle position of the bottom end of the second mounting frame (12).

6. The multi-zone temperature controlled oil casing heat treatment device according to claim 5, characterized in that: The shape and size of the outer portion of the H-shaped sliding seat (9) are matched with the shape and size of the inner portion of the adjusting slide groove (7); the H-shaped sliding seat (9) can slide up and down along the inner portion of the adjusting slide groove (7); and the top end of the pressure sensor (10) is connected to the bottom end of the hydraulic cylinder (11).

7. The multi-zone temperature controlled oil casing heat treatment device according to claim 1, characterized in that: The front and rear ends of the top of the conveying roller (15) are respectively provided with a plurality of groups of positioning screw eyes (23); the front and rear ends of the outside of the conveying roller (15) are respectively sleeved with sliding sleeves (24); the outside of the sliding sleeve (24) is fixedly connected with a conical sleeve (25); and the upper and lower ends of the sliding sleeve (24) are respectively inserted with hand-tightened bolts (26).

8. The multi-zone temperature controlled oil casing heat treatment device according to claim 7, characterized in that: The inner diameter of the sliding sleeve (24) is matched with the outer diameter of the conveying roller (15), and the sliding sleeve (24) can slide back and forth along the outside of the conveying roller (15), and the positioning screw eyes (23) are arranged at equal intervals.

Images