Electromagnetic heating device suitable for various media

Abstract

The utility model belongs to the technical field of electromagnetic heating, in particular to an electromagnetic heating device suitable for various media, which comprises a heat exchanger and a power supply control cabinet, the heat exchanger comprises a spiral coil, a heated medium flows in the spiral coil, an electromagnetic coil is wound outside the spiral coil, and the electromagnetic coil is electrically connected in the power supply control cabinet. The spiral coil is heated through the electromagnetic coil, heat exchange is carried out between the spiral coil and the heated medium, so that the heated medium is heated, heat of the spiral coil is transmitted to the heated medium only through one-time heat transmission, heat loss is reduced, and the heating efficiency of the heated medium is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic heating, in particular to an electromagnetic heating device suitable for various media. Background Art

[0002] In the process of petroleum and petrochemical production, it is necessary to heat and keep warm various media such as water, oil, natural gas, chemical raw materials, reagents, additives, etc., and electromagnetic heating is usually used. Electromagnetic heating is also called electromagnetic induction heating. The principle of electromagnetic heating is to generate an alternating magnetic field through the components of the electronic circuit board. When a metal container is placed on it, the surface of the container cuts the alternating magnetic field lines and generates alternating current (i.e. eddy current) at the metal part at the bottom of the container. The eddy current causes the carriers at the bottom of the container to move irregularly at high speed. The carriers collide and rub with atoms to generate heat energy, thereby achieving a heating effect.

[0003] A Chinese utility model patent with publication number CN220087510U discloses an electromagnetic heater, including a heat exchange tube, a heat conductive block, a metal sleeve and an electromagnetic coil. A flowing medium to be heated is passed into the heat exchange tube. The heat conductive block has a plurality of through holes. The heat exchange tube is passed through the through holes. The heat conductive block is a heat conductive material. The heat conductive block can transfer heat to the heat exchange tube. The inlet and outlet ends of the heat exchange tube both extend out of the end of the heat conductive block. The metal sleeve is sleeved on the outer circumference of the heat conductive block. The electromagnetic coil is wound around the outer wall of the metal sleeve. The electromagnetic coil is connected to a power supply to heat the metal sleeve. The heat of the metal sleeve is transferred to the heat exchange tube through the heat conductive block.

[0004] With respect to the above-mentioned related technologies, after the electromagnetic coil heats the metal sleeve, the heat of the metal sleeve is transferred to the heat exchange tube through the heat conductive block, thereby heating the heated medium in the heat exchange tube. The heat of the metal sleeve is transferred to the heated medium through the heat conductive block and the heat exchange tube, wherein three heat transfers are performed, resulting in a large amount of heat loss, which greatly affects the heating efficiency of the heated medium. Utility Model Content

[0005] In order to solve the problems in the above-mentioned background technology, the utility model provides an electromagnetic heating device suitable for a variety of media, which heats the spiral coil through an electromagnetic coil, and the spiral coil exchanges heat with the heated medium, thereby heating the heated medium. The heat of the spiral coil is transferred to the heated medium only once, which reduces heat loss and greatly improves the heating efficiency of the heated medium.

[0006] The utility model provides an electromagnetic heating device suitable for various media, comprising a heat exchanger and a power control cabinet. The heat exchanger comprises a spiral coil, in which a heated medium flows, an electromagnetic coil is wound outside the spiral coil, and the electromagnetic coil is electrically connected to the power control cabinet.

[0007] Furthermore, the outside of the spiral coil is wrapped with a heat-insulating layer, and the electromagnetic coil is wound around the outside of the heat-insulating layer.

[0008] Furthermore, a plurality of heat exchangers are provided, and the plurality of heat exchangers are connected in parallel.

[0009] Furthermore, the material of the spiral coil is selected according to the corrosiveness of the heated medium.

[0010] Furthermore, a touch screen is provided on the power control cabinet, and the touch screen can display the temperature and pressure of the inlet and outlet of the spiral coil in real time.

[0011] Furthermore, a plurality of operation buttons are provided on the power control cabinet, and the operation buttons can realize emergency stop and start and stop of the entire device.

[0012] Furthermore, it also includes a heat dissipation component for dissipating heat from the power control cabinet. The heat dissipation component includes a water tank, a centrifugal pump is installed on the water tank, a circulating water pipe is connected to the centrifugal pump, the circulating water pipe passes through the power control cabinet and is connected to a radiator, and the radiator is connected to the water tank.

[0013] Furthermore, it also includes an outer shell, in which the heat exchanger, the power control cabinet and the heat dissipation component are all placed. A skid-mounted base is provided at the bottom end of the outer shell, and at least two hanging columns are provided on both sides of the skid-mounted base.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The power control cabinet supplies power to the electromagnetic coil. When the electromagnetic coil is energized, it heats the spiral coil. The spiral coil exchanges heat with the heated medium, thereby heating the heated medium. The heat from the spiral coil is transferred to the heated medium only once, which reduces heat loss and greatly improves the heating efficiency of the heated medium.

[0016] (2) The parallel connection of multiple heat exchangers can increase the overall heating power of the electromagnetic heating device, and electromagnetic heating devices of different powers can be designed according to the number of heat exchangers, thereby realizing the serialization of electromagnetic heating devices.

[0017] (3) The centrifugal pump transports the cooling water in the water tank to the circulating water pipe. The cooling water enters the power control cabinet through the circulating water pipe, thereby taking away the heat in the power control cabinet. The cooling water then enters the radiator to dissipate the heat of the cooling water. After the cooling water dissipates the heat, it returns to the water tank for recycling, thereby achieving the heat dissipation of the power control cabinet and the recycling of cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 only 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.

[0019] Figure 1 It is a front view of an electromagnetic heating device applicable to various media;

[0020] Figure 2 It is a left view of an electromagnetic heating device applicable to various media;

[0021] Figure 3 It is a top view of an electromagnetic heating device applicable to various media;

[0022] Figure 4 is a front view of the heat exchanger;

[0023] Figure 5 is a top view of the heat exchanger;

[0024] Figure 6 is a cross-sectional view of a heat exchanger;

[0025] Explanation of the reference numerals: 1. heat exchanger; 10. spiral coil; 11. support leg; 12. insulation layer; 13. electromagnetic coil; 2. power control cabinet; 20. touch screen; 21. operation button; 3. housing; 30. skid-mounted base; 31. hanging column; 4. heat dissipation component; 40. water tank; 41. centrifugal pump; 42. radiator. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in 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 belong to the protection scope of the utility model.

[0027] The following is combined with Figure 1 To Attachment Figure 6 And specific embodiments describe the present invention in detail.

[0028] Reference Figure 1-6The utility model provides an electromagnetic heating device suitable for a variety of media, including a heat exchanger 1. The heat exchanger 1 includes a vertically placed spiral coil 10. The inlet and outlet of the spiral coil 10 are located on both sides of the spiral coil 10. The inlet of the spiral coil 10 is located at the lower end and the outlet is located at the upper end. A heated medium flows in the spiral coil 10. The material of the spiral coil 10 needs to be selected according to the corrosiveness of the heated medium. In most cases, the spiral coil 10 uses low carbon steel or low alloy steel, while the chloride ion medium uses duplex stainless steel and the CO2 medium uses austenitic stainless steel, thereby reducing the corrosion of the heated medium to the spiral coil 10 and extending the service life of the spiral coil 10.

[0029] A plurality of legs 11 are vertically fixedly connected below the spiral coil 10, and the legs 11 are used to support the spiral coil 10. In the present embodiment, three legs 11 are arranged, and the three legs 11 are distributed in a triangle, so as to improve the supporting stability of the spiral coil 10. An insulating layer 12 is wrapped on the outer wall of the spiral coil 10, and the insulating layer 12 can reduce the heat loss of the spiral coil 10. An electromagnetic coil 13 is wound on the outer wall of the insulating layer 12, and the winding direction of the electromagnetic coil 13 is arranged perpendicular to the spiral direction of the spiral coil 10, and the electromagnetic coil 13 is used to heat the spiral coil 10.

[0030] In this embodiment, only one heat exchanger 1 is provided. In other embodiments, multiple heat exchangers 1 can be provided. The multiple heat exchangers 1 are connected in parallel, which can increase the overall heating power of the electromagnetic heating device. Electromagnetic heating devices of different powers can be designed according to the number of heat exchangers 1, thereby realizing the serialization of electromagnetic heating devices.

[0031] An electromagnetic heating device suitable for a variety of media also includes a power control cabinet 2, an electromagnetic coil 13 is electrically connected to the power control cabinet 2, the power control cabinet 2 is used to supply power to the electromagnetic coil 13, and the power control cabinet 2 can change the current in the electromagnetic coil 13, thereby changing the heating temperature of the spiral coil 10, and then can heat a variety of media with different temperature requirements; a touch screen 20 is installed on the power control cabinet 2, and the touch screen 20 can display the temperature and pressure of the inlet and outlet of the spiral coil 10 in real time, so as to better monitor the heating condition of the heated medium in the spiral coil 10; a plurality of operation buttons 21 are also installed on the power control cabinet 2, and the operation buttons 21 are convenient for operating the power control cabinet 2. In this embodiment, the operation buttons 21 are set to four, namely, an emergency stop button, a run button, a switch button and a stop button.

[0032] An electromagnetic heating device suitable for a variety of media also includes an outer shell 3, a heat exchanger 1 and a power control cabinet 2 are placed in the outer shell 3, the outer shell 3 can protect the heat exchanger 1 and the power control cabinet 2, a skid-mounted base 30 is fixedly connected to the bottom end of the outer shell 3, the skid-mounted base 30 is convenient for a forklift to lift the outer shell 3, and the overall movement of the electromagnetic heating device is convenient, and two hanging columns 31 are fixedly connected on both sides of the skid-mounted base 30, the hanging columns 31 are convenient for a crane to lift the outer shell 3, and the overall movement of the electromagnetic heating device is also convenient.

[0033] A heat dissipation component 4 is also provided in the housing 3. The heat dissipation component 4 is used to dissipate heat and cool the power control cabinet 2. The heat dissipation component 4 includes a water tank 40. The water tank 40 is filled with cooling water. A centrifugal pump 41 is installed on the water tank 40. The centrifugal pump 41 is used to pump out the cooling water in the water tank 40. A circulating water pipe (not shown in the figure) is connected to the centrifugal pump 41. The circulating water pipe is spirally arranged in the power control cabinet 2. After the circulating water pipe passes through the power control cabinet 2, it is connected to a radiator 42. The radiator 42 is fixedly installed on the water tank 40 and connected to the water tank 40. When dissipating heat to the power control cabinet 2, the centrifugal pump 41 transports the cooling water in the water tank 40 to the circulating water pipe. The cooling water enters the power control cabinet 2 along the circulating water pipe, thereby taking away the heat in the power control cabinet 2. Then, the cooling water passes through the radiator 42. The radiator 42 dissipates heat to the cooling water. The cooling water after heat dissipation enters the water tank 40, realizing the recycling of cooling water.

[0034] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as a limitation on the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. An electromagnetic heating device suitable for a variety of media, characterized in that: The invention comprises a heat exchanger (1) and a power control cabinet (2), wherein the heat exchanger (1) comprises a spiral coil (10), a heated medium flows in the spiral coil (10), an electromagnetic coil (13) is wound around the outside of the spiral coil (10), and the electromagnetic coil (13) is electrically connected to the power control cabinet (2).

2. The electromagnetic heating device applicable to various media according to claim 1, characterized in that: The outside of the spiral coil (10) is wrapped with a thermal insulation layer (12), and the electromagnetic coil (13) is wound around the outside of the thermal insulation layer (12).

3. The electromagnetic heating device applicable to various media according to claim 1, characterized in that: A plurality of the heat exchangers (1) are provided, and the plurality of heat exchangers (1) are connected in parallel.

4. The electromagnetic heating device applicable to various media according to claim 1, characterized in that: The material of the spiral coil (10) is selected according to the corrosiveness of the heated medium.

5. The electromagnetic heating device applicable to various media according to claim 1, characterized in that: The power control cabinet (2) is provided with a touch screen (20), and the touch screen (20) can display the temperature and pressure of the inlet and outlet of the spiral coil (10) in real time.

6. The electromagnetic heating device applicable to various media according to claim 1, characterized in that: The power control cabinet (2) is provided with a plurality of operating buttons (21), and the operating buttons (21) can realize emergency stop and start and stop of the entire device.

7. The electromagnetic heating device applicable to various media according to claim 1, characterized in that: It also includes a heat dissipation component (4) for dissipating heat from the power control cabinet (2), the heat dissipation component (4) including a water tank (40), a centrifugal pump (41) installed on the water tank (40), a circulating water pipe connected to the centrifugal pump (41), the circulating water pipe passing through the power control cabinet (2) and then connected to a radiator (42), the radiator (42) being connected to the water tank (40).

8. The electromagnetic heating device applicable to various media according to claim 7, characterized in that: It also comprises a shell (3), wherein the heat exchanger (1), the power control cabinet (2) and the heat dissipation assembly (4) are all placed in the shell (3), a skid-mounted base (30) is provided at the bottom end of the shell (3), and at least two suspension columns (31) are provided on both sides of the skid-mounted base (30).

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