Anti-freezing oil extraction wellhead pipeline heating device

Abstract

The utility model discloses an anti-freezing oil extraction wellhead pipeline heating device which comprises an oil extraction wellhead pipe body, a left heat preservation shell and a right heat preservation shell, the left heat preservation shell and the right heat preservation shell both surround the outer side of the oil extraction wellhead pipe body, and a locking pin is connected between the left heat preservation shell and the right heat preservation shell. One side of the left heat preservation shell and one side of the right heat preservation shell are both connected with heat preservation inner plates; the oil extraction wellhead pipe further comprises a supporting platen which is connected to the outer side of the oil extraction wellhead pipe body above the left heat preservation shell and the right heat preservation shell in a sleeving mode. The hot air blower is driven to blow air into the heating groove, the electric heating wire is used for heating the blown-in air, then the air is evenly blown out from the multiple sets of hot air nozzles, and hot air is blown to the oil extraction wellhead pipe body so that the oil extraction wellhead pipe body can be heated, heat preservation can be achieved, and the fluidity of crude oil in the oil extraction wellhead pipe body can be improved; and blockage of the oil extraction wellhead pipe main body due to thick and solidified crude oil in a low-temperature environment is prevented.

Description

Technical Field

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

[0002] With the continuous growth of energy demand, crude oil extraction has become an important industrial activity. During the crude oil extraction process, especially in the cold winter, the oil wellhead pipeline faces serious antifreeze challenges. Due to the viscosity of crude oil, the fluidity of crude oil will be greatly reduced in low temperature environment, and it may even solidify and become unable to flow. This not only affects the efficiency of crude oil extraction, but also may cause wax precipitation in the pipeline, thereby causing pipeline blockage, seriously affecting the transportation and storage of crude oil;

[0003] An oil wellhead pipeline heating and antifreezing device with announcement number CN219808984U includes a pipeline, which is characterized in that: an arc-shaped sleeve is slidably connected to the outer surface of the pipeline near the top position, a first connecting frame is provided on both sides of the rear surface of the arc-shaped sleeve, a second connecting frame is provided on the end of the first connecting frame away from the arc-shaped sleeve, a support plate is provided at the bottom end of the second connecting frame, a heating box is provided on the top surface of the support plate, an anti-damage plate is provided at the front end of the heating box, and a plurality of groups of heat flow grooves are provided on the surface of the anti-damage plate. The utility model uses the arc-shaped sleeve, the first and second clamping plates, the first bolts and nuts on the first and second clamping plates, the heating box, the anti-damage plate, and the heat flow grooves provided on the surface of the anti-damage plate, so that the device can be conveniently moved up and down to the required working position for heating, and the heat is uniform, which greatly improves the working efficiency;

[0004] When the oil production pipe heating device in the above-mentioned prior art is in use, it mainly utilizes the cooperation of the heating box and the heat flow groove to heat the oil production pipe to achieve antifreeze. However, in actual use, the heating box is fixed, that is, the heating position is inconvenient to adjust, resulting in the inability to completely cover or evenly heat all positions of the oil production pipe, which in turn leads to limited heating effect on the oil production pipe, and the heating efficiency is limited, that is, the antifreeze effect is not good. In addition, since the positions of the heating box and the heat flow groove are fixed, some areas may be overheated and other areas may be underheated, which may easily cause waste of resources. Therefore, corresponding improvements are needed. Utility Model Content

[0005] The utility model aims to provide an antifreeze oil wellhead pipeline heating device to solve the problem that the existing oil wellhead pipeline heating device proposed in the above background technology has a fixed heating position during use, which is inconvenient to adjust and leads to poor heating and antifreeze effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an antifreeze oil wellhead pipeline heating device, comprising an oil wellhead pipe body, a left insulation shell, and a right insulation shell, wherein the left insulation shell and the right insulation shell are both surrounded by the outside of the oil wellhead pipe body, a locking pin is connected between the left insulation shell and the right insulation shell, and one side of the left insulation shell and the right insulation shell are both connected to an insulation inner plate;

[0007] Also includes:

[0008] A support platen is sleeved on the outer side of the oil wellhead pipe body above the left insulation shell and the right insulation shell, and a rotating mechanism is arranged on the top of the support platen, a heating cylinder is connected to the top of the rotating mechanism, and an antifreeze heating mechanism is arranged inside the heating cylinder.

[0009] When using an antifreeze oil wellhead pipeline heating device of the present technical solution, the oil wellhead pipe body can be heated by setting the heating mechanism to achieve the antifreeze effect, and the direction of the hot air can be adjusted by using the rotating mechanism to achieve annular heating of the oil wellhead pipe body, thereby ensuring the high efficiency of heating and antifreeze.

[0010] Preferably, the transverse cross-section of the support platform is rectangular, and the support platform is fixedly connected to the top end of the left insulation shell.

[0011] Preferably, the rotating mechanism includes a rotating motor, and the rotating motor is arranged at the bottom end of the supporting table, one end of the rotating motor is connected to a rotating shaft, and one end of the rotating shaft is connected to a pinion, one side of the pinion is meshed with a large gear plate, and both sides of the bottom end of the large gear plate are connected to support wheels, and the top end of the large gear plate is connected to the bottom end of the heating cylinder.

[0012] Preferably, one end of each of the support wheels extends to the interior of a support groove, the support groove is disposed at the top end of the support table, and the cross-section of the support groove is annular.

[0013] Preferably, the support plate, the large toothed disc and the heating cylinder are all provided with through holes with circular cross-sections, and the aperture of the through holes is larger than the diameter of the main body of the oil wellhead pipe.

[0014] Preferably, the antifreeze heating mechanism comprises a heating box arranged on one side of the heating cylinder, and a filter screen is connected to the interior of the heating box, and a hot air blower is arranged inside the heating box;

[0015] Among them, a heating groove is arranged inside the heating tube, and an electric heating wire is wound inside the heating groove. Hot air nozzles are evenly connected to one side of the heating tube, and the hot air nozzles are distributed in a ring shape inside the heating tube, and one end of the hot air nozzles extends to the inside of the heating groove.

[0016] Preferably, the outer side of the heating cylinder is coated with a thermal insulation layer, and the thermal insulation layer is a mineral wool thermal insulation coating.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the antifreeze oil wellhead pipeline heating device can not only realize the effect of annular multi-range heating of the oil wellhead pipeline to ensure the uniformity of heating and antifreeze, but also realize the effect of convenient disassembly and assembly;

[0018] The hot air blower is driven to blow air into the heating tank, and the electric heating wire is used to heat the blown air, and then the hot air is blown out evenly from multiple groups of hot air nozzles to blow the hot air toward the main body of the oil wellhead pipe, so as to heat the main body of the oil wellhead pipe, achieve heat preservation, improve the fluidity of the crude oil in the main body of the oil wellhead pipe, and prevent the crude oil from becoming viscous and solidified under low temperature environment and causing blockage of the main body of the oil wellhead pipe;

[0019] In this process, the rotating motor is driven to rotate the rotating shaft and the pinion gear, and the pinion gear and the large toothed disc are meshed with each other, so that the large toothed disc rotates, and the supporting wheel makes a circular motion in the supporting groove, which is a rotation limit guide for the large toothed disc to ensure the stability of the rotation of the large toothed disc, and then the hot air nozzle is rotated synchronously, so that the hot air can be evenly blown to the main body of the oil wellhead pipe, so as to achieve uniform heating of the main body of the oil wellhead pipe, and the heat preservation effect is better, which replaces the traditional static heating, that is, the heat preservation effect of the main body of the oil wellhead pipe is better;

[0020] By sleeve-fitting the heating cylinder, large toothed disc and supporting plate onto the main body of the oil wellhead pipe, and sleeve-fitting the left insulation shell onto the outside of the main body of the oil wellhead pipe, and then aligning the right insulation shell with the left insulation shell, and using the locking pin to lock the left insulation shell and the right insulation shell, and making the insulation inner plate fit onto the outer wall of the main body of the oil wellhead pipe, the main body of the oil wellhead pipe is initially insulated and antifreeze using the left insulation shell, so as to ensure the fluidity of the crude oil in the main body of the oil wellhead pipe and ensure that the crude oil can flow smoothly to the transfer station or oil storage tank, and the above-mentioned reverse operations can be performed later to realize the disassembly of the left insulation shell and the right insulation shell to meet different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 For the utility model Figure 1 Schematic diagram of the structure at A in the middle;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0025] Figure 4 This is a schematic diagram of the structure of the utility model when viewed from above;

[0026] Figure 5 For the utility model Figure 3 Schematic diagram of the structure at B in the middle;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the support platform of the utility model;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the left insulation shell of the utility model.

[0029] Explanation of the reference numerals in the figure: 1. Oil wellhead pipe body; 2. Left insulation shell; 3. Right insulation shell; 4. Locking pin; 5. Support table; 501. Support groove; 6. Rotating mechanism; 601. Rotating motor; 602. Rotating shaft; 603. Small gear; 604. Large gear plate; 605. Support wheel; 7. Heating cylinder; 701. Heating groove; 702. Electric heating wire; 703. Hot air nozzle; 8. Insulation layer; 9. Heating box; 10. Filter; 11. Hot air blower; 12. Insulation inner plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of 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.

[0031] See also Figure 1-Figure 7 , the utility model provides the following technical solutions: Example

[0032] In order to solve the problem that the pipe heating device in the prior art is inconvenient to disassemble during use, the following technical solution is published. For details, please refer to Figure 1 , Figure 4 , Figure 7 , including an oil wellhead pipe body 1, a left insulation shell 2, and a right insulation shell 3. The left insulation shell 2 and the right insulation shell 3 are both surrounded by the outside of the oil wellhead pipe body 1. A locking pin 4 is connected between the left insulation shell 2 and the right insulation shell 3. One side of the left insulation shell 2 and the right insulation shell 3 are both connected with an insulation inner plate 12;

[0033] When the present embodiment is in use, the heating tube 7, the large toothed disc 604 and the supporting plate 5 are sleeved on the oil wellhead pipe body 1, and the left insulation shell 2 is sleeved on the outer side of the oil wellhead pipe body 1, and then the right insulation shell 3 is matched with the left insulation shell 2, and the locking pin 4 is used to lock the left insulation shell 2 and the right insulation shell 3, and the left insulation shell 2 and the right insulation shell 3 can be installed on the outer side of the oil wellhead pipe body 1 to perform preliminary insulation and antifreeze on the oil wellhead pipe body 1, and cooperate with the insulation inner plate 12 to fit with the oil wellhead pipe body 1 to achieve further insulation, ensure the fluidity of the crude oil in the oil wellhead pipe body 1, and ensure that the crude oil can flow smoothly to the transfer station or oil storage tank, and the above-mentioned reverse operation can be performed later to realize the disassembly of the left insulation shell 2 and the right insulation shell 3 to meet different usage requirements. Example

[0034] This embodiment is different from the first embodiment. The antifreeze heating mechanism is used to achieve heating and antifreeze of the oil wellhead pipe body 1, and the heating range can be adjusted in conjunction with the setting of the rotating mechanism 6 to ensure comprehensive and efficient heating of the oil wellhead pipe body 1 and comprehensive and efficient antifreeze. Therefore, the following technical solutions are published. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7A support platen 5 is sleeved on the outer side of the oil wellhead pipe body 1 above the left insulation shell 2 and the right insulation shell 3. The transverse cross-section of the support platen 5 is rectangular. The support platen 5 is fixedly connected to the top of the left insulation shell 2. A rotating mechanism 6 is arranged on the top of the support platen 5. The rotating mechanism 6 includes a rotating motor 601, and the rotating motor 601 is arranged at the bottom end of the support platen 5. One end of the rotating motor 601 is connected to a rotating shaft 602, and one end of the rotating shaft 602 is connected to a small gear 603. A large toothed disc 604 is meshed on one side of the small gear 603, and both sides of the bottom end of the large toothed disc 604 are connected to support wheels 605. The top of the large toothed disc 604 is connected to the bottom end of the heating cylinder 7, and one end of the support wheel 605 extends to the inside of the support groove 501. The support groove 501 is arranged at the top of the support platen 5, and the cross-section of the support groove 501 is annular. , a heating cylinder 7 is connected to the top of the rotating mechanism 6, and a through hole with a circular cross section is provided on the supporting plate 5, the large toothed disc 604, and the heating cylinder 7, and the aperture of the through hole is larger than the diameter of the oil wellhead pipe body 1, and an antifreeze heating mechanism is provided inside the heating cylinder 7, and the antifreeze heating mechanism includes a heating box 9 arranged on one side of the heating cylinder 7, and a filter screen 10 is connected to the inside of the heating box 9, and a hot air blower 11 is provided inside the heating box 9, wherein a heating groove 701 is provided inside the heating cylinder 7, and an electric heating wire 702 is wound inside the heating groove 701, and a hot air nozzle 703 is evenly connected to one side of the heating cylinder 7, and the hot air nozzle 703 is distributed in a ring shape inside the heating cylinder 7, and one end of the hot air nozzle 703 extends to the inside of the heating groove 701, and a thermal insulation layer 8 is applied to the outside of the heating cylinder 7, and the thermal insulation layer 8 is a mineral wool thermal insulation coating;

[0035] When the present embodiment is in use, the hot air blower 11 is driven to blow air into the heating tank 701, and the electric heating wire 702 is used to heat the blown air, and then the hot air is blown out evenly from the multiple groups of hot air nozzles 703, so that the hot air is blown to the oil wellhead pipe body 1, and the hot air is heated to achieve heat preservation, thereby improving the fluidity of the crude oil in the oil wellhead pipe body 1, and preventing the crude oil from becoming viscous and solidified in a low temperature environment and causing the oil wellhead pipe body 1 to be blocked. In this process, the rotating motor 601 is driven to drive the rotating shaft 602 and the pinion 603 to rotate, and the rotating shaft 602 and the pinion 603 are driven to rotate. The small gear 603 and the large toothed disc 604 mesh with each other, and then the large toothed disc 604 rotates, and the support wheel 605 makes a circular motion in the support groove 501, which serves as a rotation limit guide for the large toothed disc 604 to ensure the stability of the rotation of the large toothed disc 604, and then the hot air nozzle 703 rotates synchronously, so that the hot air can be evenly blown to the oil wellhead pipe body 1, so as to achieve uniform heating of the oil wellhead pipe body 1, and the thermal insulation effect is better, replacing the traditional static heating, that is, the thermal insulation effect of the oil wellhead pipe body 1 is better.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An antifreeze oil wellhead pipeline heating device, comprising an oil wellhead pipe body (1), a left insulation shell (2), and a right insulation shell (3), wherein the left insulation shell (2) and the right insulation shell (3) are both surrounded by the outer side of the oil wellhead pipe body (1), a locking pin (4) is connected between the left insulation shell (2) and the right insulation shell (3), and one side of the left insulation shell (2) and the right insulation shell (3) are both connected to an insulation inner plate (12); It is characterized in that Also includes: The outer side of the oil wellhead pipe body (1) above the left insulation shell (2) and the right insulation shell (3) is sleeved with a support plate (5), and a rotating mechanism (6) is provided at the top of the support plate (5), and a heating cylinder (7) is connected to the top of the rotating mechanism (6), and an antifreeze heating mechanism is provided inside the heating cylinder (7).

2. The antifreeze oil wellhead pipeline heating device according to claim 1 is characterized in that: The transverse cross section of the support platform (5) is rectangular, and the support platform (5) is fixedly connected to the top end of the left heat-insulating shell (2).

3. The antifreeze oil wellhead pipeline heating device according to claim 1 is characterized in that: The rotating mechanism (6) includes a rotating motor (601), and the rotating motor (601) is arranged at the bottom end of the supporting table (5), one end of the rotating motor (601) is connected to a rotating shaft (602), and one end of the rotating shaft (602) is connected to a small gear (603), one side of the small gear (603) is meshed with a large toothed disc (604), and both sides of the bottom end of the large toothed disc (604) are connected to supporting wheels (605), and the top end of the large toothed disc (604) is connected to the bottom end of the heating tube (7).

4. The antifreeze oil wellhead pipeline heating device according to claim 3 is characterized in that: One end of each of the support wheels (605) extends to the interior of the support groove (501), and the support groove (501) is arranged at the top end of the support plate (5), and the cross section of the support groove (501) is annular.

5. The antifreeze oil wellhead pipeline heating device according to claim 3 is characterized by: The support plate (5), the large toothed disc (604) and the heating cylinder (7) are all provided with through holes with circular cross-sections, and the diameter of the through holes is larger than the diameter of the oil wellhead pipe body (1).

6. The antifreeze oil wellhead pipeline heating device according to claim 1, characterized in that: The antifreeze heating mechanism comprises a heating box (9) arranged on one side of the heating cylinder (7), and a filter screen (10) is connected to the interior of the heating box (9), and a hot air blower (11) is arranged inside the heating box (9); The heating tube (7) is provided with a heating groove (701) inside, and an electric heating wire (702) is wound inside the heating groove (701); a hot air nozzle (703) is evenly connected to one side of the heating tube (7), and the hot air nozzle (703) is distributed in a ring shape inside the heating tube (7), and one end of the hot air nozzle (703) extends to the inside of the heating groove (701).

7. The antifreeze oil wellhead pipeline heating device according to claim 1 is characterized by: The outer side of the heating cylinder (7) is coated with a thermal insulation layer (8), and the thermal insulation layer (8) is a mineral wool thermal insulation coating.

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