Electric heating device for oil well pipeline

Abstract

The utility model relates to the technical field of oil well pipeline heating, and discloses an oil well pipeline electric heating device which comprises a device shell and a side arc plate, the center of an inner cavity of the device shell is transversely connected with a pipeline, positioning blocks are additionally arranged on the front face and the back face of the side arc plate, and positioning holes are formed in the tops of the positioning blocks. The top end and the bottom end of the bidirectional lead screw are both connected with telescopic connecting plates, driving motors are installed at the front end and the rear end of the top of each telescopic connecting plate and coaxially connected with the bidirectional lead screw, and the upper portion and the lower portion of the center of the surface of the bidirectional lead screw are both sleeved with sliding blocks; and the two sides of the bottom of the positioning rod are rotationally connected with rotating plates. According to the electric heating device for the oil well pipeline, the positioning rods are inserted into the corresponding positioning holes, the rotating plates are rotated to be attached to the positioning blocks, the driving motors drive the bidirectional lead screws to rotate, the sliding blocks drive the side arc plates to move to be attached to the surface of the pipeline, in this way, rapid disassembly and assembly treatment is conducted, and the pipeline cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of oil well pipeline heating, in particular to an oil well pipeline electric heating device. Background Art

[0002] Oil extraction refers to the process of extracting oil from underground reservoirs through a series of technical means. This process usually involves steps such as exploration, drilling, development, oil production and production, and the construction of drilling platforms and wellheads, and the installation of necessary oil well pipelines and equipment. Oil well pipelines are mainly used to transport crude oil and natural gas from oil wells to the ground. During transportation, crude oil adheres to the pipe wall of the oil well pipeline, reducing the transportation area of ​​the oil well pipeline, and is prone to condensation, reducing the efficiency of crude oil gathering and transportation. When transporting oil, electric heating devices are needed in oil well pipelines to reduce the viscosity of crude oil and enhance fluidity.

[0003] Common oil well pipeline electric heating devices are usually composed of power supply and control system, heating elements, pipelines and insulation layers, temperature sensors and feedback systems. The power supply and control system and heating elements convert electrical energy into thermal energy to heat the oil well pipeline, and insulate it through the pipeline and insulation layer. At the same time, the temperature sensor is used to monitor the temperature of the pipeline in real time and feed back the temperature signal to the control system. This is the common structure and use of oil well pipeline electric heating devices. Traditional oil well pipeline heating devices will produce some products when using water jacket heating method, which will have serious corrosive effects on water jacket heating, shorten its service life, and pollute the environment. Some oil well pipeline heating devices convert electrical energy into thermal energy by using electric heating, thereby heating part of the pipeline section. However, in this method, since the heating element needs to be repaired and replaced after long-term use, and the common heating element is installed on the outside of the pipeline by bolting or welding, the heating element and the oil well pipeline need to be disassembled and assembled by corresponding tools. At the same time, forced disassembly and assembly also damages the outside of the oil well pipeline, making it impossible to perform quick disassembly and assembly operations. Therefore, an oil well pipeline electric heating device is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides an oil well pipeline electric heating device to solve the technical problem that the above-mentioned heating element and the oil well pipeline cannot be quickly disassembled and assembled.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil well pipeline electric heating device, comprising:

[0008] The device shell, and the side arc plates arranged at the upper and lower parts of both ends of the device shell, and the center of the inner cavity of the device shell is horizontally connected with a pipeline, the front and back sides of the side arc plates are both provided with positioning blocks, and the tops of the positioning blocks are both provided with positioning holes;

[0009] A bidirectional lead screw is arranged on both sides of the front and back sides of the side arc plate, and the top and bottom ends of the bidirectional lead screw are connected with telescopic connecting plates, the front and rear ends of the top of the telescopic connecting plate are equipped with driving motors, and are coaxially connected with the bidirectional lead screw, and the upper and lower parts of the center of the surface of the bidirectional lead screw are sleeved with sliding blocks;

[0010] The positioning rod is arranged on the inner side of the sliding block, and the bottom sides of the positioning rod are rotatably connected with rotating plates, and the positioning rod corresponds to the positioning hole. After the positioning rod of the sliding block is inserted into the positioning hole of the positioning block on the corresponding side arc plate, the rotating plate is rotated to fit tightly with the positioning block, and the driving motor drives the corresponding bidirectional screw to rotate on the telescopic connecting plate, and drives the corresponding side arc plate to move towards each other through the sliding block to fit tightly with the corresponding part of the surface of the pipeline. On the one hand, the connection method between the positioning block, the positioning rod and the rotating plate is convenient for rapid disassembly and assembly, and will not cause damage to the pipeline; on the other hand, the bidirectional screw drives the corresponding side arc plate to connect with the pipeline, which ensures the stability of the connection, and at the same time, the telescopic connecting plate can be used to connect with side arc plates of different lengths within a certain range.

[0011] Preferably, the side arc plate has limit holes at the center of the upper part and the front and rear ends of the lower part, and the lower part of the outer end of the limit hole is provided with a limit arc plate. The limit holes and limit arc plates of the side arc plate can be connected to the corresponding structure.

[0012] Preferably, the bottom center of the limiting arc plate is connected with a guide rod, and the guide rod and the side arc plate are movably connected, and the outer surface of the guide rod is sleeved with an extrusion spring and fits between the limiting arc plates. Under the action of the guide rod and the extrusion spring, the limiting arc plate fits tightly with the corresponding structure, ensuring the tightness of the connection between the corresponding structure and the side arc plate.

[0013] Preferably, the device housing is composed of an upper housing and a lower housing, and connecting rods are transversely installed at the upper center of both sides and the front and rear ends of the lower parts of the upper housing and the lower housing. The connecting rods can be inserted into the corresponding limiting holes of the upper housing and the lower housing.

[0014] Preferably, the outer ends of the connecting rods are rotatably connected to the limit heads, and the limit heads correspond to the limit holes and fit tightly with the limit arc plates. The limit heads of the connecting rods are located outside the limit holes and rotated so that the limit heads are misaligned with the limit holes and fit tightly with the limit arc plates. On the one hand, the upper shell and the lower shell can be connected to the corresponding limit arc plates, and the disassembly and assembly operations are convenient; on the other hand, the side arc plates can be replaced according to the size of the pipeline, so that the device can be tightly connected with pipelines of different sizes within a certain range, avoiding internal heat loss and reducing the heating effect of the pipeline.

[0015] Preferably, electric heating pipes are added at the corresponding positions of the inner cavities of the upper shell and the lower shell, and guide columns are longitudinally installed on both sides and the center of the surface of the electric heating pipe, and extend outward through the inner walls of the upper shell and the lower shell, and the surfaces of the guide columns are sleeved with reset springs, and fit with the electric heating pipe and the inner walls of the upper shell and the lower shell. After the electric heating pipe is powered on and heated up under the action of the corresponding structure, it fits tightly with the surface of the pipeline under the action of the guide column and the reset spring, so that the electric heating pipe can fit with the surface of pipelines of different sizes within a certain range, and improve the effect of electric heating of the pipeline.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides an oil well pipeline electric heating device, which has the following beneficial effects:

[0018] The oil well pipeline electric heating device inserts the positioning rod of the sliding block into the positioning hole of the positioning block on the corresponding side arc plate, and then rotates the rotating plate to fit tightly with the positioning block, drives the corresponding bidirectional screw to rotate on the telescopic connecting plate, and drives the corresponding side arc plates to move towards each other through the sliding block to fit tightly with the corresponding part of the surface of the pipeline. In this way, on the one hand, the connection between the positioning block, the positioning rod and the rotating plate is convenient for rapid disassembly and assembly without causing damage to the pipeline; on the other hand, the corresponding side arc plate is driven to connect with the pipeline through the bidirectional screw, which ensures the stability of the connection, and at the same time, the telescopic connecting plate can be used to connect with side arc plates of different lengths within a certain range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the side arc plate and its connection structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the separation structure of the upper shell and the lower shell of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the upper shell of the utility model in a partial cross-section.

[0023] In the figure: 1. device housing; 2. side arc plate; 3. pipeline; 4. bidirectional lead screw; 5. telescopic connecting plate; 6. driving motor; 7. positioning rod; 8. rotating plate; 9. positioning block; 10. positioning hole; 11. limiting hole; 12. limiting arc plate; 13. guide rod; 14. extrusion spring; 15. upper housing; 16. lower housing; 17. connecting rod; 18. limiting head; 19. electric heating tube; 20. guide column; 21. reset spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution, an oil well pipeline electric heating device, comprising: Figure 1 , a device housing 1, and side arc plates 2 arranged at the upper and lower parts of both ends of the device housing 1, and a pipeline 3 is horizontally connected to the center of the inner cavity of the device housing 1, and positioning blocks 9 are added to the front and back sides of the side arc plates 2, and positioning holes 10 are opened at the tops of the positioning blocks 9;

[0026] The bidirectional lead screw 4 is arranged on both sides of the front and back sides of the side arc plate 2, and the top and bottom ends of the bidirectional lead screw 4 are connected with a telescopic connecting plate 5, and the top front and rear ends of the telescopic connecting plate 5 are installed with a driving motor 6, which is coaxially connected with the bidirectional lead screw 4, and the upper and lower parts of the center of the surface of the bidirectional lead screw 4 are sleeved with sliding blocks;

[0027] See also Figure 2 The positioning rod 7 is arranged on the inner side of the sliding block, and the bottom sides of the positioning rod 7 are rotatably connected with a rotating plate 8, and the positioning rod 7 corresponds to the positioning hole 10. After the positioning rod 7 of the sliding block is inserted into the positioning hole 10 of the positioning block 9 on the corresponding side arc plate 2, the rotating plate 8 is rotated to fit tightly with the positioning block 9, and the driving motor 6 drives the corresponding bidirectional screw 4 to rotate on the telescopic connecting plate 5, and drives the corresponding side arc plate 2 to move towards each other through the sliding block to fit tightly with the corresponding part of the surface of the pipeline 3. On the one hand, the connection method between the positioning block 9, the positioning rod 7 and the rotating plate 8 is convenient for rapid disassembly and assembly, and will not cause damage to the pipeline 3; on the other hand, the bidirectional screw 4 drives the corresponding side arc plate 2 to connect with the pipeline 3, which ensures the stability of the connection, and at the same time, the telescopic connecting plate 5 can be used to connect with side arc plates 2 of different lengths within a certain range.

[0028] See also Figure 2 The side arc plate 2 has a limit hole 11 horizontally provided at the center of the upper outer side and the front and rear ends of the lower lower side, and a limit arc plate 12 is provided at the lower outer end of the limit hole 11. The side arc plate 2 can be connected to the corresponding structure through the limit hole 11 and the limit arc plate 12. The bottom center of the limit arc plate 12 is connected with a guide rod 13, and the guide rod 13 and the side arc plate 2 are movably connected. The outer surface of the guide rod 13 is sleeved with an extrusion spring 14, and fits between the limit arc plates 12. Under the action of the guide rod 13 and the extrusion spring 14, the limit arc plate 12 fits tightly with the corresponding structure, ensuring the tightness of the connection between the corresponding structure and the side arc plate 2.

[0029] See also Figure 3 The device housing 1 as a whole is composed of an upper housing 15 and a lower housing 16, and connecting rods 17 are installed horizontally at the upper center and the front and rear ends of the lower parts of both sides of the upper housing 15 and the lower housing 16. The upper housing 15 and the lower housing 16 can insert the connecting rod 17 into the corresponding limiting hole 11. The outer ends of the connecting rods 17 are rotatably connected to the limiting heads 18, and the limiting heads 18 correspond to the limiting holes 11 and fit tightly with the limiting arc plates 12. The limiting heads 18 of the connecting rods 17 are located outside the limiting holes 11 and rotate, so that the limiting heads 18 are misaligned with the limiting holes 11 and fit tightly with the limiting arc plates 12. On the one hand, the upper housing 15 and the lower housing 16 can be connected to the corresponding limiting arc plates 12, and the disassembly and assembly operations are convenient; on the other hand, the side arc plates 2 can be replaced according to the size of the pipeline 3, so that the device can be tightly connected with pipelines 3 of different sizes within a certain range, avoiding internal heat loss and reducing the heating effect of the pipeline 3.

[0030] See also Figure 4 , electric heating tubes 19 are added to the corresponding positions of the inner cavities of the upper shell 15 and the lower shell 16, and guide columns 20 are longitudinally installed on both sides and the center of the surface of the electric heating tube 19, and extend outward through the inner walls of the upper shell 15 and the lower shell 16, and the surfaces of the guide columns 20 are sleeved with reset springs 21, and fit with the electric heating tube 19 and the inner walls of the upper shell 15 and the lower shell 16. After the electric heating tube 19 is powered on and heated under the action of the corresponding structure, it fits tightly with the surface of the pipe 3 under the action of the guide column 20 and the reset spring 21, so that the electric heating tube 19 can fit with the surface of the pipe 3 of different sizes within a certain range, and improve the effect of electric heating of the pipe 3.

[0031] This solution: After the positioning rod 7 of the sliding block is inserted into the positioning hole 10 of the positioning block 9 on the corresponding side arc plate 2, the rotating plate 8 is rotated to fit tightly with the positioning block 9, and the driving motor 6 drives the corresponding bidirectional screw 4 to rotate on the telescopic connecting plate 5, and drives the corresponding side arc plate 2 to move towards each other through the sliding block to fit tightly with the corresponding surface of the pipe 3. The upper shell 15 and the lower shell 16 can insert the connecting rod 17 into the corresponding limiting hole 11, and the limiting head 18 of the connecting rod 17 is located outside the limiting hole 11 and rotates, so that the limiting head 18 is misaligned with the limiting hole 11, and the limiting arc plate 12 is tightly fitted with the limiting head 18 under the action of the guide rod 13 and the extrusion spring 14. After the electric heating pipe 19 is powered on and heated up under the action of the corresponding structure, it is tightly fitted with the surface of the pipe 3 under the action of the guide column 20 and the reset spring 21.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil well pipeline electric heating device, characterized in that: include: A device housing (1), and side arc plates (2) arranged at the upper and lower parts of both ends of the device housing (1), and a pipeline (3) is transversely connected to the center of the inner cavity of the device housing (1), and positioning blocks (9) are added on the front and back sides of the side arc plates (2), and positioning holes (10) are opened on the tops of the positioning blocks (9); A bidirectional lead screw (4) is arranged on both sides of the front and back sides of the side arc plate (2), and the top and bottom ends of the bidirectional lead screw (4) are connected to a telescopic connecting plate (5), and a driving motor (6) is installed at the top and front and rear ends of the telescopic connecting plate (5) and is coaxially connected to the bidirectional lead screw (4), and sliding blocks are sleeved on the upper and lower parts of the center of the surface of the bidirectional lead screw (4); The positioning rod (7) is arranged on the inner side of the sliding block, and both sides of the bottom of the positioning rod (7) are rotatably connected to a rotating plate (8), and the positioning rod (7) corresponds to the positioning hole (10).

2. The oil well pipeline electric heating device according to claim 1, characterized in that: The side arc plate (2) is provided with a limit hole (11) in the transverse direction at the center of the upper part of the outer side and at the front and rear ends of the lower part, and a limit arc plate (12) is provided at the lower part of the outer end of the limit hole (11).

3. The oil well pipeline electric heating device according to claim 2, characterized in that: The bottom center of the limiting arc plate (12) is connected to a guide rod (13), and the guide rod (13) and the side arc plate (2) are movably connected. The outer surface of the guide rod (13) is sleeved with a compression spring (14) and fits between the limiting arc plates (12).

4. The oil well pipeline electric heating device according to claim 3, characterized in that: The device housing (1) is composed of an upper housing (15) and a lower housing (16), and connecting rods (17) are transversely installed at the upper center and the lower front and rear ends of both sides of the upper housing (15) and the lower housing (16).

5. The oil well pipeline electric heating device according to claim 4, characterized in that: The outer ends of the connecting rods (17) are rotatably connected to the limiting heads (18), and the limiting heads (18) correspond to the limiting holes (11) and are tightly fitted to the limiting arc plates (12).

6. The oil well pipeline electric heating device according to claim 5, characterized in that: Electric heating tubes (19) are provided at corresponding locations of the inner cavities of the upper shell (15) and the lower shell (16), and guide columns (20) are longitudinally installed on both sides and the center of the surface of the electric heating tube (19) and extend outward through the inner walls of the upper shell (15) and the lower shell (16). The surfaces of the guide columns (20) are sleeved with return springs (21) and fit with the electric heating tube (19) and the inner walls of the upper shell (15) and the lower shell (16).

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