Electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation and use method thereof

Abstract

The present invention provides an electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation and a method for using the pipeline, comprising a steel inner pipe, a steel tubular outer shell is provided on the outer wall of the steel inner pipe, a high temperature resistant and waterproof insulated electric coil is wound on the outer wall of the steel inner pipe, the top of the steel inner pipe extends upward and is fixedly installed with a first flange, and the top of the steel tubular outer shell is fixedly installed with a second flange, the bottom of the steel inner pipe and the bottom of the steel tubular outer shell are sealed by a sealing gasket and fixed as a whole by bolts; the terminal of the high temperature resistant and waterproof insulated electric coil is connected to an electromagnetic generator. The present invention changes the traditional heating method, cooperates with the electromagnetic heating tube, and performs secondary heating on the softened heavy oil during oil extraction, thereby improving the operating efficiency of the heavy oil recovery and heating link. It is small in size and light in weight, which is convenient for divers to install underwater and carry into the engine room, and improves the underwater installation and operation efficiency compared with the traditional steam heating method.

Description

Technical Field

[0001] The invention relates to the technical field of shipwreck salvage engineering, and in particular to an electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation. Background Art

[0002] The principle of electromagnetic induction heating is that the alternating current generated by the induction heating power source generates an alternating magnetic field through the inductor (i.e., coil), and the magnetic conductive object is placed in it to cut the alternating magnetic field lines, thereby generating an alternating current (i.e., eddy current) inside the object. The eddy current causes the atoms inside the object to move irregularly at high speed, and the atoms collide and rub against each other to generate heat energy, thereby achieving the effect of heating the object. That is, a heating method that converts electrical energy into magnetic energy, so that the heated steel body is induced by magnetic energy and generates heat.

[0003] After a ship is sunk at sea, in order to prevent the marine environment from being polluted again, it is necessary to recover the fuel oil of the sunken ship. In winter or when the water depth exceeds 80m, the heavy oil of the underwater sunken ship is non-flowing. In the early stage of heavy oil recovery, the heavy oil in the oil tank of the sunken ship needs to be heated. At present, the heating method used at home and abroad is basically steam heating. Multiple heating pipes are set in series in the oil tank to heat the heavy oil at multiple points. The water vapor circulates in the heating pipe and flows back to the heating boiler in the state of warm water, or the water vapor pipeline is used to directly spray the water vapor into the heavy oil tank of the sunken ship for heavy oil heating. Although the existing technology can heat and soften the non-flowing heavy oil under special conditions, the steam boiler is large in size, heavy in weight, and has high maintenance costs. Its heating pipeline is limited by water depth, has large heat loss, is difficult for divers to connect the heating pipe underwater, and has low heating efficiency. Summary of the invention

[0004] In order to solve the above technical problems, an electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation and a method for using the same are provided.

[0005] The technical means adopted by the present invention are as follows:

[0006] An electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation, comprising a steel inner pipe, a steel tubular outer shell is provided on the outer surface of the steel inner pipe, and at least one high temperature resistant and waterproof insulated electric coil is provided between the inner wall of the steel tubular outer shell and the outer wall of the steel inner pipe, the top end of the steel inner pipe extends upward and is fixedly installed with a first flange, and the top end of the steel tubular outer shell is fixedly installed with a second flange, a knife valve is installed in the portion of the steel inner pipe between the first flange and the second flange, the bottom of the steel inner pipe and the bottom of the steel tubular outer shell are sealed by a sealing rubber gasket, and are fixed as a whole by bolts;

[0007] The connection terminal of the high temperature resistant and waterproof insulated electric coil is connected to the electromagnetic generator.

[0008] In a further embodiment, the portion of the steel inner tube between the knife valve and the first flange is connected to an air intake pipe for introducing high-pressure gas, and an air intake valve is provided on the air intake pipe;

[0009] In a further aspect, a temperature sensor is installed on the outer wall of the steel inner tube.

[0010] In one embodiment, a rubber ring is installed between the second flange and the steel inner tube, and the wiring terminals of the high temperature resistant and waterproof insulated electric coil and the wiring terminals of the temperature sensor both pass through the rubber ring.

[0011] The present invention also discloses a method for using an electromagnetically heated heavy oil pipeline integrating electromagnetic heating and oil transportation, comprising the following steps:

[0012] S1: at least one penetration hole is opened on the heavy oil tank of the sunken ship, and the bottom of an electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation is inserted into the heavy oil tank of the sunken ship through the penetration hole, and the second flange is fixedly connected to the heavy oil tank of the sunken ship by bolts;

[0013] S2: The first flange is fixedly connected to the screw pump for pumping heavy oil by bolts; the air inlet pipe is connected to the high-pressure air machine;

[0014] S3: The wiring terminal of the high temperature resistant and waterproof insulated electric coil and the wiring terminal of the temperature sensor are respectively connected to the electromagnetic generator and the temperature sensor display screen on the surface operation ship;

[0015] S4: starting the electromagnetic generator, the high temperature resistant and waterproof insulated electric coil generates a high-speed changing alternating magnetic field, under the action of the magnetic field, the steel tubular outer shell and the steel inner tube generate heat to heat the heavy oil in the heavy oil tank of the sunken ship;

[0016] S5: After the heavy oil is heated and softened, the knife valve is opened, the screw pump pumps oil, and the heavy oil is pumped out from the heavy oil tank of the sunken ship through the steel inner pipe;

[0017] S6: After the oil pumping is completed, the air inlet valve is opened until the high-pressure air generated by the high-pressure air machine squeezes the heavy oil in the steel inner tube to between the knife valve and the heavy oil tank of the sunken ship, and then the air inlet valve is closed;

[0018] S7: Close the knife valve to prevent residual oil from flowing into the sea and prevent heavy oil from causing secondary pollution to the ocean.

[0019] In the step S4, during the heating process, the temperature sensor measures the heating temperature in real time, and stops the electromagnetic generator when the temperature exceeds 100° C. This prevents the steel tubular outer shell and the steel inner tube from overheating and causing heavy oil reaction.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are: the electromagnetic heating heavy oil pipeline is intended to change the traditional heating method, cooperate with the electromagnetic heating tube, and perform secondary heating on the softened heavy oil during oil extraction, thereby improving the efficiency of the heavy oil recovery and heating process. It is small in size and light in weight, which is convenient for divers to install underwater and carry into the engine room, and improves the underwater installation and operation efficiency compared with the traditional steam heating method.

[0021] Based on the above reasons, the present invention can be widely promoted in the fields of shipwreck salvage and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a schematic diagram of the structure of an electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation in a specific implementation manner of the present invention.

[0024] Figure 2 It is a half-section diagram of an electromagnetically heated heavy oil pipeline integrating electromagnetic heating and oil transportation in a specific embodiment of the present invention;

[0025] Figure 3 yes Figure 2 Schematic diagram of the structure after removing the steel tubular shell;

[0026] Figure 4 yes Figure 2 Middle AA section;

[0027] Figure 5 yes Figure 2 Middle BB section;

[0028] Figure 6 yes Figure 3 Middle CC section;

[0029] Figure 7 The present invention is a diagram showing the use status of an electromagnetic heating heavy oil pipeline that integrates electromagnetic heating and oil transportation in a specific embodiment of the present invention.

[0030] In the figure: 1. first flange, 2. second flange, 3. steel tubular outer shell, 4. steel inner tube, 5. high temperature resistant and waterproof insulated electric coil, 6. temperature sensor, 7. knife valve, 8. air intake pipe, 9. rubber ring, 10. sealing rubber pad, 11. M8 bolt, 12. high temperature resistant insulated coil terminal, 13. temperature sensor signal line, 14. electromagnetic generator, 15. air intake valve, 16. heavy oil tank of sunken ship, 17. screw pump, 18. high pressure air machine, 19 temperature sensor display screen. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0035] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0036] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0037] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0038] Example 1

[0039] like Figures 1 to 7 As shown, an electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation comprises a steel inner tube 4, the steel inner tube 4 is covered with a steel tubular outer shell 3, and at least one high temperature resistant and waterproof insulated electric coil 5 wound on the outer wall of the steel inner tube 4 is arranged between the inner wall of the steel tubular outer shell 3 and the outer wall of the steel inner tube 4, the top of the steel inner tube 4 extends upward and is fixedly installed with a first flange 1, and the top of the steel tubular outer shell 3 is fixedly installed with a second flange 2, the steel inner tube 4 is installed with a knife valve 7 in the part between the first flange 1 and the second flange 2, the bottom of the steel inner tube 4 and the bottom of the steel tubular outer shell 3 are sealed by a sealing gasket 10, and are fixed as a whole by M8 bolts 11;

[0040] The connection terminal 12 of the high temperature resistant and waterproof insulated electric coil 5 is connected to the electromagnetic generator 14 .

[0041] In a further aspect, the portion of the steel inner tube 4 between the knife valve 7 and the first flange is connected to an air intake pipe 8 for introducing high-pressure gas, and an air intake valve 15 is provided on the air intake pipe 8;

[0042] Furthermore, a temperature sensor 6 is installed on the outer wall of the steel inner tube 4 .

[0043] In a further aspect, a rubber ring 9 is installed between the second flange 2 and the steel inner tube 4, and the connection terminal 12 of the high temperature resistant and waterproof insulated electric coil 5 and the connection terminal 13 of the temperature sensor 6 both pass through the rubber ring.

[0044] Example 2

[0045] like Figures 1 to 7 As shown, a method for using an electromagnetically heated heavy oil pipeline that combines electromagnetic heating and oil transportation comprises the following steps:

[0046] S1: at least one penetration hole is opened on the heavy oil tank 16 of the sunken ship, and the bottom of an electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation is inserted into the heavy oil tank of the sunken ship through the penetration hole, and the second flange 2 is fixedly connected to the heavy oil tank 16 of the sunken ship by bolts;

[0047] S2: The first flange 1 is fixedly connected to the screw pump 17 for pumping heavy oil by bolts; the air inlet pipe 8 is connected to the high-pressure air machine 18;

[0048] S3: The connection terminal 12 of the high temperature resistant and waterproof insulated electric coil 5 and the connection terminal 13 of the temperature sensor 6 are respectively connected to the electromagnetic generator 14 and the temperature sensor display screen 19 on the surface operation ship;

[0049] S4: Start the electromagnetic generator 14, and the high temperature resistant and waterproof insulated electric coil 5 heats the heavy oil in the heavy oil tank 16 of the sunken ship under the action of the high-speed changing alternating magnetic field; the heavy oil is heated and softened to about 10°C (water temperature is 5°C) within the pipe heating range.

[0050] S5: After the heavy oil is heated and softened, the knife valve 7 is opened, and the screw pump 17 pumps oil, and the heavy oil is pumped out from the heavy oil tank 16 of the sunken ship through the steel inner tube 4; and secondary heating is performed in the steel inner tube;

[0051] S6: After the oil pumping is completed, the air inlet valve 15 is opened until the high-pressure air generated by the high-pressure air machine 18 squeezes the heavy oil in the steel inner tube 4 to between the knife valve 7 and the heavy oil tank 16 of the sunken ship, and then the air inlet valve 15 is closed;

[0052] S7: Close the knife valve 7 to prevent residual oil from flowing into the sea and to prevent heavy oil from causing secondary pollution to the ocean.

[0053] Furthermore, in step S4, during the heating process, the temperature sensor 6 measures the heating temperature in real time, and stops the electromagnetic generator 14 when the temperature exceeds 100° C. This prevents the steel tubular outer shell 5 and the steel inner tube 4 from overheating and causing heavy oil reaction.

[0054] During use, an electromagnetic heating heavy oil pipeline that integrates electromagnetic heating and oil transportation can extend the length of the pipeline to increase the heating range, and can also use multiple pipes in series to perform multi-point heating of the sunken oil tank so that the heavy oil in the entire tank is softened to improve the operating efficiency;

[0055] Due to the limitation of the number of oil pumps, the knife valve can be cancelled when multiple points are used. After the heating is completed, a blind plate can be used to seal the steel inner pipe at the second flange to prevent the softened heavy oil from flowing out and polluting the marine environment. Only 2 to 3 electromagnetic heating heavy oil pipelines integrating electromagnetic heating and oil transportation are left to extract and recover the softened heavy oil at the high position of the sunken ship's oil tank.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electromagnetically heated heavy oil pipeline integrating electromagnetic heating and oil transportation, characterized in that: It comprises a steel inner tube, the outer shell of the steel inner tube is covered with a steel tubular shell, and at least one high temperature resistant and waterproof insulated electric coil is arranged between the inner wall of the steel tubular shell and the outer wall of the steel inner tube, the top of the steel inner tube extends upward and is fixedly installed with a first flange, and the top of the steel tubular shell is fixedly installed with a second flange, the bottom of the steel inner tube and the bottom of the steel tubular shell are sealed by a sealing gasket and fixed as a whole by bolts; the terminal of the high temperature resistant and waterproof insulated electric coil is connected to an electromagnetic generator; A knife valve is installed on the portion of the steel inner tube between the first flange and the second flange; and an air inlet pipe for introducing high-pressure gas is connected to the portion of the steel inner tube between the knife valve and the first flange.

2. The electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation according to claim 1 is characterized in that: A temperature sensor is installed on the outer wall of the steel inner tube.

3. The electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation according to claim 2 is characterized in that: A rubber ring is installed between the second flange and the steel inner tube, and the wiring terminals of the high-temperature resistant and waterproof insulated electric coil and the wiring terminals of the temperature sensor both pass through the rubber ring.

4. The method for using the electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation according to claim 3 is characterized in that: The steps include: S1: at least one penetration hole is opened on the heavy oil tank of the sunken ship, and the bottom of an electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation is inserted into the heavy oil tank of the sunken ship through the penetration hole, and the second flange is fixedly connected to the heavy oil tank of the sunken ship by bolts; S2: The first flange is fixedly connected to the screw pump for pumping heavy oil by bolts; the air inlet pipe is connected to the high-pressure air machine; S3: The wiring terminal of the high temperature resistant and waterproof insulated electric coil and the wiring terminal of the temperature sensor are respectively connected to the electromagnetic generator and the temperature sensor display screen on the surface operation ship; S4: starting the electromagnetic generator, the high temperature resistant and waterproof insulated electric coil generates a high-speed changing alternating magnetic field, under the action of the magnetic field, the steel tubular outer shell and the steel inner tube generate heat to heat the heavy oil in the heavy oil tank of the sunken ship; S5: After the heavy oil is heated and softened, the knife valve is opened, the screw pump pumps oil, and the heavy oil is pumped out from the heavy oil tank of the sunken ship through the steel inner pipe; S6: After the oil pumping is completed, the air intake valve on the air intake pipe is opened until the high-pressure air generated by the high-pressure air machine squeezes the heavy oil in the steel inner tube to between the knife valve and the heavy oil tank of the sunken ship, and then the air intake valve is closed; S7: Close the knife valve.

5. The method for using the electromagnetic heating heavy oil pipeline integrating electromagnetic heating and oil transportation according to claim 4 is characterized in that: In the step S4, during the heating process, the temperature sensor measures the heating temperature in real time, and when the temperature exceeds 100°C, the electromagnetic generator is stopped.

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