Non-contact electromagnetic energy storage heating device and heating method

Abstract

The invention discloses a non-contact electromagnetic energy storage heating device and a heating method, and relates to the field of crude oil treatment. According to the non-contact electromagnetic energy storage heating device and the heating method, a heat accumulator, a high-temperature circulating fan, an electromagnetic heating unit and a crude oil heat exchange device are arranged, the high-temperature circulating fan conducts airflow circulation among the heat accumulator, the electromagnetic heating unit and the crude oil heat exchange device through pipelines, and heat storage and heat release are achieved through circulating airflow; heat is generated through electromagnetic induction, the heating speed is high, the heat efficiency is high, a hot airflow circulation heating mode is adopted to replace a traditional resistance wire close-fitting heating mode, heating is uniform, no dead angle exists in temperature conversion, and the problem of local overheating of the heat accumulator can be solved; the size of the device is greatly reduced, the structure of the heat accumulator is simplified, and the electric leakage risk of the heat accumulator is effectively eradicated.

Description

Technical Field

[0001] This invention relates to crude oil processing technology, specifically to a non-contact electromagnetic energy storage heating device and heating method. Background Technology

[0002] Heating crude oil reduces its viscosity. At room temperature, crude oil is typically viscous like syrup, with extremely poor fluidity. Heating intensifies the molecular motion within the crude oil and weakens the intermolecular forces, thus thinning the oil. This significantly improves its fluidity, ensuring less resistance and lower energy consumption during long-distance pipeline transportation. It also facilitates efficient and safe subsequent storage, transportation, and processing (such as distillation).

[0003] Most existing heating equipment is electric energy storage equipment. Electric energy storage technology can transfer peak electricity consumption, balance the peak-valley difference of the power grid, and utilize green energy such as wind power and solar photovoltaic power. It can reduce investment in new power plants, improve the utilization rate of existing power generation and transmission equipment, reduce environmental pollution caused by energy use, make full use of limited non-renewable resources, and is conducive to ecological balance, thus having huge social benefits.

[0004] However, most conventional electric energy storage devices heat the heat storage medium through resistance-based close-contact heat conduction using heating wires, heating rods, etc., which can easily lead to localized overheating, deterioration, and failure of the heat storage material. Moreover, in existing solid heat storage devices, the heating wires are in direct contact with the heat storage material, and the entire heat storage medium is filled with heating wires, posing a risk of electric leakage. The heating wires are prone to fatigue and reduced lifespan due to frequent and repeated heating. When replacing them, the heat storage medium must be opened, damaging the insulation layer. The repair work is complex and arduous. To facilitate maintenance, the heat storage equipment must be designed with safe access channels for maintenance, which increases the ineffective volume of the equipment.

[0005] It is evident that existing electric thermal storage equipment has a complex structure and low operating efficiency, failing to meet the requirements of efficient energy storage and stable operation. Summary of the Invention

[0006] The purpose of this invention is to provide a non-contact electromagnetic energy storage heating device and heating method to solve the problem that existing heat storage devices cannot efficiently store energy and operate stably for a long time.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a non-contact electromagnetic energy storage heating device and heating method, comprising:

[0008] A heat storage body, which contains heat storage materials for storing and releasing heat energy;

[0009] High-temperature circulating fans are used to generate hot circulating airflow;

[0010] Electromagnetic heating unit, used to convert electrical energy into heat energy;

[0011] A crude oil heat exchange device, wherein the crude oil heat exchange device is provided with a crude oil outlet and a crude oil inlet, for inputting crude oil into the crude oil heat exchange device for heat exchange;

[0012] The heat storage body, high-temperature circulating fan, electromagnetic heating unit, and crude oil heat exchange device form a closed-loop heat circulation through hot air pipes. A branch pipe is provided between the hot air pipes on the heat exchange inlet and outlet of the crude oil heat exchange device. A heat storage electric valve is provided on the branch pipe. A heat release electric valve is connected to the hot air pipe between the branch pipe and the heat exchange inlet of the crude oil heat exchange device.

[0013] Preferably, the heat storage material includes adsorption heat storage material, thermochemical heat storage material, and high-density phase change heat storage material.

[0014] Preferably, the heat storage body and the electromagnetic heating unit are separately separated.

[0015] Preferably, the crude oil heat exchanger is equipped with a crude oil coil, which is connected to the crude oil outlet and crude oil inlet. A hot air heat exchange chamber is located between the crude oil heat exchanger and the crude oil coil, and the hot air pipe is connected to the hot air heat exchange chamber.

[0016] A non-contact electromagnetic energy storage heating method includes:

[0017] In the heat storage cycle, the heat storage electric valve opens and the heat release electric valve closes. The high-temperature circulating fan works to generate circulating airflow. The electromagnetic heating unit is energized to generate heat, which heats the circulating airflow to form a high-heat circulating airflow. The high-heat circulating airflow enters the heat storage body through the hot air duct. The heat storage body exchanges heat with the high-heat circulating airflow to store heat and form a low-heat circulating airflow. The high-temperature circulating fan drives the low-heat circulating airflow to carry out the next heat conduction cycle.

[0018] In the heat release cycle, the heat storage electric valve is closed and the heat release electric valve is opened. The high-temperature circulating fan works to generate circulating airflow. The circulating airflow enters the heat storage body and is heated to form a high-heat circulating airflow. The high-heat circulating airflow enters the crude oil heat exchange device through the hot air pipe for heat exchange. After heating the crude oil, it forms a low-heat circulating airflow. The low-heat circulating airflow enters the heat storage body through the hot air pipe to absorb heat. The high-temperature circulating fan drives the high-heat circulating airflow to carry out the next heat conduction cycle.

[0019] Compared with existing technologies, the present invention provides a non-contact electromagnetic energy storage heating device and method. This device comprises a heat storage body, a high-temperature circulating fan, an electromagnetic heating unit, and a crude oil heat exchange device. The high-temperature circulating fan circulates airflow between the heat storage body, the electromagnetic heating unit, and the crude oil heat exchange device via pipes. During heat storage, the electromagnetic heating unit generates heat when connected to electricity. The circulating airflow generated by the high-temperature circulating fan absorbs heat through the electromagnetic heating unit, forming a high-heat circulating airflow. This high-heat circulating airflow enters the heat storage body through hot air pipes and branch pipes, where the heat storage material absorbs heat, converting the high-heat circulating airflow into a low-heat circulating airflow. The high-temperature circulating fan then propels the low-heat circulating airflow to absorb heat for the next heat absorption cycle. During heat release, the high-temperature circulating fan generates... Low-heat circulating airflow absorbs heat through the heat storage body to form high-heat circulating airflow. The high-heat circulating airflow enters the crude oil heat exchanger through the hot air duct to heat the crude oil, reduce its viscosity, and form low-heat circulating airflow. Then, the low-heat circulating airflow enters the heat storage body again through the hot air duct to absorb heat and form high-heat circulating airflow, and then the next heat release cycle begins. The heat is generated by electromagnetic induction, which is fast and efficient. Moreover, the hot airflow circulation heating method replaces the traditional resistance wire close-fitting heating method, resulting in uniform heating and no dead zones in temperature changes. This solves the problem of local overheating of the heat storage body. Furthermore, since the heat storage body does not need to be equipped with resistance heating structures and does not need to be designed with safety access for maintenance, the equipment size is greatly reduced, the structure of the heat storage body is simplified, and the risk of leakage of the heat storage body is effectively eliminated. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 The diagram shows the structure of the process equipment provided in the embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Heat storage body; 2. High-temperature circulating fan; 3. Electromagnetic heating unit; 4. Crude oil heat exchange device; 5. Heat storage electric valve; 6. Heat release electric valve; 7. Crude oil outlet; 8. Crude oil import. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] As attached Figure 1 As shown:

[0026] Example:

[0027] This invention provides a non-contact electromagnetic energy storage heating device, comprising:

[0028] The heat storage body 1 is equipped with heat storage material for storing and releasing heat energy.

[0029] High-temperature circulating fan 2 is used to generate hot circulating airflow;

[0030] The electromagnetic heating unit 3 is used to convert electrical energy into heat energy, and the heat storage body 1 and the electromagnetic heating unit 3 are separately separated.

[0031] The crude oil heat exchange device 4 is provided with a crude oil outlet 7 and a crude oil inlet 8 for inputting crude oil into the crude oil heat exchange device 4 for heat exchange. The crude oil heat exchange device 4 is provided with a crude oil coil, which is connected to the crude oil outlet 7 and the crude oil inlet 8. There is a hot air heat exchange chamber between the crude oil heat exchange device 4 and the crude oil coil. The hot air pipe is connected to the hot air heat exchange chamber. After the high-heat circulating airflow enters the hot air heat exchange chamber, it will surround the crude oil coil and heat the crude oil in the crude oil coil.

[0032] The heat storage body 1, high-temperature circulating fan 2, electromagnetic heating unit 3, and crude oil heat exchange device 4 form a closed-loop heat circulation through hot air pipes. A branch pipe is provided between the hot air pipes on the heat exchange inlet and outlet of the crude oil heat exchange device 4. A heat storage electric valve 5 is provided on the branch pipe. A heat release electric valve 6 is connected to the hot air pipe between the branch pipe and the heat exchange inlet of the crude oil heat exchange device 4.

[0033] As can be seen from the above, by setting up a heat storage body 1, a high-temperature circulating fan 2, an electromagnetic heating unit 3, and a crude oil heat exchange device 4, the high-temperature circulating fan 2 circulates airflow between the heat storage body 1, the electromagnetic heating unit 3, and the crude oil heat exchange device 4 through pipes. During heat storage, the electromagnetic heating unit 3 generates heat when connected to electricity. The circulating airflow generated by the high-temperature circulating fan 2 absorbs heat through the electromagnetic heating unit 3 to form a high-heat circulating airflow. The high-heat circulating airflow enters the heat storage body 1 through hot air pipes and branch pipes, where the heat storage material in the heat storage body 1 absorbs heat, converting the high-heat circulating airflow into a low-heat circulating airflow. The high-temperature circulating fan 2 then drives the low-heat circulating airflow to move and absorb heat for the next heat absorption airflow cycle. During heat release, the low-heat circulating airflow generated by the high-temperature circulating fan 2 passes through the heat storage body 1. Heat body 1 absorbs heat to form a high-heat circulating airflow. This high-heat circulating airflow enters the crude oil heat exchanger 4 through a hot air duct to heat the crude oil, reducing its viscosity and forming a low-heat circulating airflow. The low-heat circulating airflow then enters the heat storage body 1 through the hot air duct again to absorb heat and form a high-heat circulating airflow, thus starting the next heat release cycle. Heat is generated using electromagnetic induction, resulting in fast heating speed and high thermal efficiency. Moreover, the hot airflow circulation heating method replaces the traditional resistance wire close-fitting heating method, ensuring uniform heating and eliminating temperature fluctuations. This solves the problem of localized overheating in the heat storage body 1. Furthermore, since the heat storage body 1 does not require a resistance heating structure or a safety access route for maintenance, the equipment size is significantly reduced, simplifying the structure of the heat storage body 1 and effectively eliminating the risk of leakage.

[0034] This electric thermal storage device can utilize the price difference between peak, off-peak, and flat electricity to convert electrical energy into heat energy during off-peak hours and release the stored heat during peak hours to meet heating demand, thereby saving operating costs. It features environmental protection, energy saving, and economy. Electromagnetic induction heating causes the material to heat up directly, which is more efficient than the heat conduction and radiation methods of traditional electric heating wires and heating tubes. It has low heat loss and is more energy-efficient, with a thermal efficiency of over 98%.

[0035] The heat storage material includes:

[0036] Adsorption heat storage materials, such as zeolite and silica gel, rely on porous materials to adsorb water vapor and release heat, and desorb and absorb heat. They have high heat storage density, minimal heat loss at room temperature, and can achieve storage for several months or even across seasons.

[0037] Thermochemical heat storage materials, such as hydroxides, carbonates, and metal hydrides, store heat through reversible chemical reactions, have the highest heat storage density, and can achieve indefinite storage with zero heat loss at room temperature, making them very suitable for long-term energy storage.

[0038] High-density phase change heat storage materials, such as molten salt mixtures, metals, and alloys, utilize the latent heat of phase change, resulting in a significantly higher heat storage density than sensible heat. The technology is relatively mature, and the system's specific heat chemistry is simple.

[0039] A non-contact electromagnetic energy storage heating method includes:

[0040] In the heat storage cycle, the heat storage electric valve 5 is opened and the heat release electric valve 6 is closed. The high-temperature circulating fan 2 works to generate circulating airflow. The electromagnetic heating unit 3 is energized to generate heat, which heats the circulating airflow to form a high-heat circulating airflow. The high-heat circulating airflow enters the heat storage body 1 through the hot air pipe. The heat storage body 1 exchanges heat with the high-heat circulating airflow to store heat and form a low-heat circulating airflow. The high-temperature circulating fan 2 drives the low-heat circulating airflow to carry out the next heat conduction cycle.

[0041] In the heat release cycle, the heat storage electric valve 5 is closed and the heat release electric valve 6 is opened. The high-temperature circulating fan 2 works to generate circulating airflow. The circulating airflow enters the heat storage body 1 and is heated to form a high-heat circulating airflow. The high-heat circulating airflow enters the crude oil heat exchange device 4 through the hot air pipe for heat exchange. After heating the crude oil, it forms a low-heat circulating airflow. The low-heat circulating airflow enters the heat storage body 1 through the hot air pipe to absorb heat. The high-temperature circulating fan 2 drives the high-heat circulating airflow to carry out the next heat conduction cycle.

[0042] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A non-contact electromagnetic energy storage heating device, characterized in that, include: The heat storage body (1) is equipped with heat storage material for storing and releasing heat energy; High-temperature circulating fan (2) is used to generate hot circulating airflow; Electromagnetic heating unit (3) is used to convert electrical energy into heat energy; The crude oil heat exchange device (4) is provided with a crude oil outlet (7) and a crude oil inlet (8) for inputting crude oil into the crude oil heat exchange device (4) for heat exchange; The heat storage body (1), high-temperature circulating fan (2), electromagnetic heating unit (3), and crude oil heat exchange device (4) form a closed-loop heat circulation through hot air pipes. A branch pipe is provided between the hot air pipes at the heat exchange inlet and outlet of the crude oil heat exchange device (4). A heat storage electric valve (5) is provided on the branch pipe. A heat release electric valve (6) is connected to the hot air pipe between the branch pipe and the heat exchange inlet of the crude oil heat exchange device (4).

2. The non-contact electromagnetic energy storage heating device according to claim 1, characterized in that, The heat storage materials include adsorption heat storage materials, thermochemical heat storage materials, and high-density phase change heat storage materials.

3. The non-contact electromagnetic energy storage heating device according to claim 1, characterized in that, The heat storage body (1) and the electromagnetic heating unit (3) are separately separated.

4. The non-contact electromagnetic energy storage heating device according to claim 1, characterized in that, The crude oil heat exchange device (4) is equipped with a crude oil coil, which is connected to the crude oil outlet (7) and crude oil inlet (8). The crude oil heat exchange device (4) and the crude oil coil are connected to a hot air heat exchange chamber, and the hot air pipe is connected to the hot air heat exchange chamber.

5. A non-contact electromagnetic energy storage heating method, characterized in that, include: In the heat storage cycle, the heat storage electric valve (5) is opened and the heat release electric valve (6) is closed. The high temperature circulating fan (2) works to generate circulating airflow. The electromagnetic heating unit (3) is energized to generate heat, which heats the circulating airflow to form a high heat circulating airflow. The high heat circulating airflow enters the heat storage body (1) through the hot air pipe. The heat storage body (1) exchanges heat with the high heat circulating airflow to store heat and form a low heat circulating airflow. The high temperature circulating fan (2) drives the low heat circulating airflow to carry out the next heat conduction cycle. In the heat release cycle, the heat storage electric valve (5) is closed and the heat release electric valve (6) is opened. The high temperature circulating fan (2) works to generate circulating airflow. The circulating airflow enters the heat storage body (1) and is heated to form a high heat circulating airflow. The high heat circulating airflow enters the crude oil heat exchange device (4) through the hot air pipe for heat exchange. After heating the crude oil, a low heat circulating airflow is formed. The low heat circulating airflow enters the heat storage body (1) through the hot air pipe to absorb heat. The high temperature circulating fan (2) drives the high heat circulating airflow to carry out the next heat conduction cycle.

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