Electromagnetic heating assembly and crude oil explosion-proof electromagnetic heater

Abstract

The utility model relates to the technical field of electromagnetic heating, in particular to an electromagnetic heating assembly and a crude oil explosion-proof electromagnetic heater, the electromagnetic heating assembly comprises a barrel body, a heating cavity is arranged in the barrel body, the heating cavity is provided with a medium inlet and a medium outlet, and a plurality of wire pipes made of magnetic conductive metal materials are arranged in the barrel body in a penetrating mode. An electromagnetic coil is axially wound between every two adjacent wire pipes. And a plurality of wire pipes and electromagnetic coils are arranged in the barrel body, so that the temperature of the medium in the heating cavity is increased, and the heating area is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic heating, in particular to an electromagnetic heating component and a crude oil explosion-proof electromagnetic heater. Background Art

[0002] After crude oil is extracted from the oil field, it needs to be transported to oil tanks through pipelines for storage. However, the composition of crude oil is complex and is rich in wax and asphalt, which are easily condensed when cold. Therefore, after the crude oil is pumped out of the well, it needs to be heated using a heating skid to prevent the crude oil from condensing in the oil pipeline and causing blockage. The basic principle of the electromagnetic heating skid is to set an electromagnetic coil on the outside of the pipeline, and control the electromagnetic coil to generate an alternating magnetic field through a controller. The change in the magnetic field causes the side wall of the pipeline to heat up, thereby transferring heat to the inside of the pipeline to heat the crude oil passing through. The existing electromagnetic coil is usually wrapped around the outside of the heating pipeline, and the total contact area between the crude oil and the heating surface is small. When the crude oil flow rate is too fast, it causes uneven heating and poor effect, so the heating power has to be increased, resulting in low heating efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an electromagnetic heating component in view of the above-mentioned technical deficiencies. A plurality of wire tubes and electromagnetic coils are arranged in the barrel body to heat the medium in the heating chamber, thereby increasing the heating area and solving the problems of uneven heating and low heating efficiency of the existing heating equipment.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an electromagnetic heating component, including a barrel body, a heating chamber is provided in the barrel body, the heating chamber is provided with a medium inlet and a medium outlet, a plurality of wire tubes made of magnetic conductive metal material are passed through the barrel body, and an electromagnetic coil is axially wound between two adjacent wire tubes.

[0005] To further optimize the technical solution, a plurality of electromagnetic coils are connected end to end to form a coil group, at least one coil group is provided in the barrel body, and both ends of each coil group are electrically connected to the control circuit respectively.

[0006] To further optimize the technical solution, end plates are respectively provided at both axial ends of the barrel body, and openings at both ends of the wire tube are respectively arranged in the two end plates, and the inner wall of the barrel body, the outer walls of the multiple wire tubes and the two end plates together form a heating chamber.

[0007] To further optimize the technical solution, end flanges are respectively provided on the outer periphery of both ends of the barrel body, and an end cover is provided on the side of the end flange away from the electromagnetic coil, wherein a wire passing hole is provided in the end cover on one side.

[0008] The utility model also provides a crude oil explosion-proof electromagnetic heater, which is provided with the electromagnetic heating component in the above invention content, the medium inlet is the inlet of the crude oil to be heated, and the medium outlet is the outlet of the heated crude oil.

[0009] The technical solution is further optimized to include a box body, in which a heating box and an explosion-proof electrical box isolated from each other are provided, the electromagnetic heating component is arranged in the heating box, and a control module is arranged in the explosion-proof electrical box.

[0010] To further optimize the technical solution, an inlet thermocouple is provided at the medium inlet, an outlet thermocouple is provided at the medium outlet, an internal thermocouple is provided in the barrel body, and the inlet thermocouple, the outlet thermocouple and the internal thermocouple are electrically connected to the control module respectively.

[0011] To further optimize the technical solution, a mounting frame is provided in the heating box, the barrel is fixed on the upper part of the mounting frame, a fan is provided on one side of the lower part of the mounting frame, a partition is provided between the heating box and the explosion-proof electrical box, and a heat dissipation fin is embedded at a height corresponding to the partition and the fan. The heat dissipation fin is arranged on one side in the explosion-proof electrical box in heat transfer contact with the power heating element in the control module.

[0012] Compared with the prior art, the utility model has the following advantages: 1. A plurality of electromagnetic coils and wire tubes made of magnetic conductive metal materials are arranged in the barrel body to heat up the medium in the heating chamber, thereby increasing the heating area in contact with the crude oil; 2. The overall structure of the electromagnetic heating component is compact, the space utilization rate is high, the heating area is large, and the heating efficiency is greatly improved; 3. The electromagnetic heating component in the invention content is applied to the crude oil explosion-proof electromagnetic heater, and the control module is cooperated to realize the efficient heating of the crude oil, the crude oil heating area is large, the heating speed is fast and the effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of one end of the electromagnetic heating assembly in Example 1;

[0014] Figure 2 is an axial cross-sectional view of the electromagnetic heating assembly in Example 1;

[0015] Figure 3 This is a schematic diagram of the structure of the other end of the electromagnetic heating assembly in Example 1;

[0016] Figure 4 This is a schematic diagram of the structure of the crude oil explosion-proof electromagnetic heater in Example 2;

[0017] Figure 5 This is a schematic diagram of the structure of one side of the heating box in the crude oil explosion-proof electromagnetic heater in Example 2;

[0018] Figure 6 This is a schematic diagram of the structure of one side of the explosion-proof electrical box in the crude oil explosion-proof electromagnetic heater in Example 2.

[0019] In the figure: 1. barrel; 10. heating chamber; 101. medium inlet; 102. medium outlet; 11. wire tube; 12. electromagnetic coil; 13. end plate; 14. end flange; 15. end cover; 151. wire outlet hole; 2. box body; 21. heating box; 211. mounting frame; 22. explosion-proof electrical box; 23. partition; 231. heat dissipation fin plate; 3. control module; 4. fan. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the reference drawings of specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. used in this application document to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present disclosure. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Embodiment 1

[0022] Combination Figures 1 to 3 As shown, an electromagnetic heating component includes a hollow cylindrical barrel body 1, a heating chamber 10 is provided in the barrel body 1, and the two ends of the heating chamber 10 are radially connected with a medium inlet 101 and a medium outlet 102 respectively. A plurality of wire tubes 11 made of magnetic conductive metal material are axially penetrated through the barrel body 1. In this embodiment, the specific material of the wire tubes 11 can be iron or steel. End plates 13 are respectively provided at the axial ends of the barrel body 1, and the openings at both ends of the wire tubes 11 are respectively arranged in the two end plates 13. The inner wall of the barrel body 1, the outer walls of the plurality of wire tubes 11 and the inner walls of the two end plates 13 together form the heating chamber 10.

[0023] An electromagnetic coil 12 is axially wound between two adjacent wire tubes 11, and the electromagnetic coil 12 is axially parallel to the wire inside the wire tube 11. In this embodiment, two turns of wire are passed through the two adjacent wire tubes 11, and more turns can also be passed through. The electromagnetic coil 12 needs to use a wire that is resistant to high temperature and has good insulation performance. Multiple electromagnetic coils 12 are connected end to end to form a coil group. One or more groups of coil groups are set in the barrel body 1. In this embodiment, one group is set. When one or more groups are set, the two ends of the wiring of each coil group are electrically connected to the control circuit.

[0024] End flanges 14 are respectively provided at the outer periphery of both ends of the barrel body 1. An end cover 15 is provided on the side of the end flange 14 away from the electromagnetic coil 12. A wire outlet hole 151 is provided in the end cover 15 on one side. The wiring ends of the coil group pass through the barrel body 1 through the wire outlet hole 151.

[0025] When in use, high-frequency alternating current is provided to each group of electromagnetic coils 12 through the control circuit. When the high-frequency current passes through the electromagnetic coils 12, a rapidly changing alternating magnetic field is generated. When the magnetic lines of force in the magnetic field pass through the wire tube 11 made of magnetically conductive metal material, eddy currents are generated on the wall of the wire tube 11. These eddy currents cause the carriers inside the side wall of the wire tube 11 to move irregularly at high speed, and the carriers collide and rub against each other, thereby converting electrical energy into thermal energy, causing the wire tube 11 to heat up at high speed itself. When the medium to be heated flows through the heating chamber 10, it can be quickly and evenly heated by multiple wire tubes 11. Embodiment 2

[0026] A crude oil explosion-proof electromagnetic heater, combined with Figures 4 to 6 As shown, it includes a box body 2, a mounting frame 211 is provided in the heating box 21, the barrel body 1 is fixed on the upper part of the mounting frame 211, the box body 2 is provided with a mutually isolated heating box 21 and an explosion-proof electrical box 22, and is also provided with the electromagnetic heating component in the first embodiment, the medium inlet 101 is the inlet of the crude oil to be heated, and the medium outlet 102 is the outlet of the heated crude oil. The electromagnetic heating component is arranged in the heating box 21, the explosion-proof electrical box 22 is provided with a control module 3, and the control module 3 is provided with the heating control circuit in the first embodiment.

[0027] An inlet thermocouple is provided at the medium inlet 101 for detecting the initial temperature of the crude oil. An outlet thermocouple is provided at the medium outlet 102 for detecting the temperature of the crude oil after heating. An in-barrel thermocouple is provided in the barrel body 1 for detecting the internal temperature of the barrel body 1 to avoid overheating during heating and affecting the service life of the equipment. The inlet thermocouple, the outlet thermocouple and the in-barrel thermocouple are electrically connected to the control module 3 respectively.

[0028] A fan 4 is provided on one side of the lower part of the mounting frame 211, a partition 23 is provided between the heating box 21 and the explosion-proof electrical box 22, a heat dissipation fin 231 is embedded in the partition 23 at a height corresponding to the fan 4, and the heat dissipation fin 231 is provided on one side inside the explosion-proof electrical box 22 in heat transfer contact with the power heating element in the control module 3.

[0029] When in use, the control module 3 determines whether the power supply of the electromagnetic heating component needs to be turned on through the imported thermocouple. After the electromagnetic heating component is turned on, the control module 3 determines the heating effect of the electromagnetic heating component on the crude oil through the set outlet thermocouple. When the temperature after heating does not reach the required temperature for heating, the heating power can be controlled to increase until the temperature reaches the working requirements. The fan 4 can be set to dissipate heat for the components of the heating box 21 and the explosion-proof electrical box 22 at the same time. The crude oil explosion-proof electromagnetic heater has the advantages of high heating efficiency, higher equipment utilization rate, and obvious energy-saving effect. It is not only suitable for heating crude oil in oil fields, but also can be used for fluid heating and temperature rise in various chemical scenes, and is suitable for large-scale promotion and use.

[0030] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments 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.

Claims

1. An electromagnetic heating assembly, comprising a barrel (1), wherein a heating chamber (10) is provided in the barrel (1), wherein the heating chamber (10) is provided with a medium inlet (101) and a medium outlet (102), wherein: A plurality of wire tubes (11) made of a magnetic metal material are inserted into the barrel body (1), and an electromagnetic coil (12) is axially wound between two adjacent wire tubes (11).

2. An electromagnetic heating assembly according to claim 1, characterized in that: A plurality of electromagnetic coils (12) are connected end to end to form a coil group, at least one group of the coil groups is provided in the barrel body (1), and both ends of each group of the coil groups are electrically connected to a control circuit.

3. The electromagnetic heating assembly according to claim 1, characterized in that: End plates (13) are respectively provided at both axial ends of the barrel body (1), and openings at both ends of the wire tube (11) are respectively arranged in the two end plates (13), and the inner wall of the barrel body (1), the outer walls of the plurality of wire tubes (11) and the two end plates (13) together enclose the heating chamber (10).

4. An electromagnetic heating assembly according to claim 3, characterized in that: End flanges (14) are respectively provided at the outer periphery of both ends of the barrel body (1), and an end cover (15) is provided on the side of the end flange (14) away from the electromagnetic coil (12), wherein a wire passing hole (151) is provided in the end cover (15) on one side.

5. A crude oil explosion-proof electromagnetic heater, characterized in that: The electromagnetic heating component according to claim 1 is provided, wherein the medium inlet (101) is the inlet of the crude oil to be heated, and the medium outlet (102) is the outlet of the heated crude oil.

6. The crude oil explosion-proof electromagnetic heater according to claim 5, characterized in that: It also comprises a box body (2), wherein a mutually isolated heating box (21) and an explosion-proof electrical box (22) are provided in the box body (2), the electromagnetic heating component is arranged in the heating box (21), and a control module (3) is provided in the explosion-proof electrical box (22).

7. The crude oil explosion-proof electromagnetic heater according to claim 6, characterized in that: An inlet thermocouple is provided at the medium inlet (101), an outlet thermocouple is provided at the medium outlet (102), an in-barrel thermocouple is provided in the barrel body (1), and the inlet thermocouple, the outlet thermocouple and the in-barrel thermocouple are electrically connected to the control module (3) respectively.

8. The crude oil explosion-proof electromagnetic heater according to claim 6, characterized in that: A mounting frame (211) is provided in the heating box (21), the barrel (1) is fixed to the upper part of the mounting frame (211), a fan (4) is provided on one side of the lower part of the mounting frame (211), a partition (23) is provided between the heating box (21) and the explosion-proof electrical box (22), a heat dissipation fin plate (231) is embedded in the partition plate (23) at a height corresponding to the fan (4), and the heat dissipation fin plate (231) is arranged on one side in the explosion-proof electrical box (22) in heat transfer contact with a power heating element in the control module (3).

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