Magnetic fluid power generation auxiliary device

Abstract

The utility model discloses a magnetohydrodynamic power generation auxiliary device which comprises a power generation channel, an inlet is formed in one end of the side face of the power generation channel, electrodes are arranged at the upper end and the lower end of the inner wall of the power generation channel, flow guide plates are arranged at the upper end and the lower end of the inner wall of the power generation channel, and auxiliary supports are fixedly installed on the inner sides of the flow guide plates. The protruding direction of the auxiliary support points to one side of the inlet. By arranging the flow guide plate, the auxiliary bracket, the arc-shaped surface and the flat and straight surface, when airflow containing metal ions passes through the interior of the power generation channel in a high-intensity magnetic field at a high speed, the airflow firstly contacts with the arc-shaped surface above the flow guide plate and is guided to a deeper position in an inclined manner under the guidance of the arc-shaped surface; and the upper and lower air flows uniformly flow to the center of the power generation channel after being fused, so that the high-speed air flow is prevented from directly impacting the end part of the electrode, the local pressure of the electrode is reduced, the air flow uniformly flows through the middle part of the power generation channel in a large area, and the practicability of the electrode is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetohydrodynamic power generation auxiliary devices, specifically a magnetohydrodynamic power generation auxiliary device. Background Technology

[0002] Magnetohydrodynamic (MHD) power generation generates electricity through the interaction of a flowing conductive fluid with a magnetic field. MHD technology directly heats fuels (oil, natural gas, coal, nuclear energy, etc.) into easily ionized gases, ionizing them at a high temperature of 2000℃ into a conductive ion stream. When this ion stream flows at high speed in a magnetic field, it cuts magnetic lines of force, generating an induced electromotive force, thus directly converting heat energy into electric current. Because it does not require a mechanical conversion process, it is called direct power generation, and its fuel utilization rate is significantly improved. This technology is also known as plasma power generation technology.

[0003] The main problem with existing magnetohydrodynamic (MHD) power generation devices is that when a gas flow containing metal ions passes through the power generation channel in a strong magnetic field at high speed and reaches the electrode area, the high-speed gas flow will directly hit the end of the electrode, causing excessively strong local contact gas flow on the electrode surface, which leads to corrosion of the electrode. Rapid corrosion of the electrode is a current challenge for MHD generators. After corrosion, it is necessary to replace and maintain the electrode frequently and irregularly, which prevents the MHD generator from operating for a long time. In addition, the cost of frequently replacing and maintaining the electrode is relatively high. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a magnetohydrodynamic (MHD) power generation auxiliary device. This device solves the main problem of existing MHD power generation devices during operation: when a gas flow containing metal ions passes through the power generation channel in a strong magnetic field at high speed and reaches the electrode area, the high-speed gas flow directly impacts the end of the electrode, resulting in excessively strong gas flow intensity on the local contact surface of the electrode. This causes the electrode to corrode too quickly, leading to rapid corrosion of the entire electrode and resulting in high subsequent electrode maintenance costs.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a magnetohydrodynamic power generation auxiliary device, including a power generation channel, an inlet at one end of the side of the power generation channel, electrodes at both the upper and lower ends of the inner wall of the power generation channel, guide plates at both the upper and lower ends of the inner wall of the power generation channel, an auxiliary bracket fixedly installed on the inner side of the guide plate, the protrusion of the auxiliary bracket pointing towards the side of the inlet, and the top of the auxiliary bracket fixed at the junction of the arc-shaped surface and the straight surface;

[0008] The outer trajectory of the guide plate includes an arc-shaped surface, one end of which is connected to a straight surface. A spherical body is fixedly installed at the tail end of the guide plate. The overall curvature of the arc-shaped surface gradually becomes smoother from one end near the inlet to the other end. The straight surface is generally distributed in an inclined manner and gradually rises towards the inside of the power generation channel. The surface of the spherical body is arc-shaped. The horizontal height of the arc-shaped surface, the straight surface, and the spherical body gradually increases.

[0009] Preferably, the power generation channel has an overall tapered narrowing channel design, and both the power generation channel and the electrode are made of high-temperature resistant materials.

[0010] Preferably, the guide plate is made entirely of a non-ferromagnetic elastic material, and the surface of the guide plate is smooth.

[0011] Preferably, the connection between the arc-shaped surface and the flat surface is seamless, and the trajectory of one side of the sphere is tangential to the top surface of the flat surface.

[0012] Preferably, the sphere is oriented diagonally downwards, and the inner side of the sphere is connected to the inner side of the flat surface by a rounded transition.

[0013] Preferably, the auxiliary support is made of an elastic material, and the bottom end of the auxiliary support is fixedly connected to the inner wall of the power generation channel.

[0014] Preferably, the overall trajectory length of the flat surface is greater than the overall trajectory length of the arc-shaped surface, the guide plate is located on one side of the electrode, and the horizontal height of the guide plate is greater than the horizontal height of the electrode.

[0015] (III) Beneficial Effects

[0016] This utility model provides a magnetohydrodynamic power generation auxiliary device, which has the following beneficial effects:

[0017] This invention utilizes a guide plate, auxiliary support, arc-shaped surface, flat surface, and spherical body. Through the coordinated operation of these components, when a gas stream containing metal ions passes at high speed through the power generation channel within a strong magnetic field, the gas stream first contacts the arc-shaped surface above the guide plate. Guided by the arc-shaped surface, it continues to flow towards the surface of the flat surface and eventually detaches from it. At this point, the gas stream is guided at an angle to a deeper depth. After the upper and lower gas streams merge, they flow uniformly towards the center of the power generation channel. The combination of the arc-shaped and flat surfaces prevents the high-speed gas stream from directly impacting the electrode's end, thus reducing local pressure on the electrode. This allows the gas stream to flow evenly and over a large area through the middle of the power generation channel, preventing rapid corrosion of the electrode and improving its practicality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of a half-section of the present invention;

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 4 This is a schematic diagram showing the flow direction of the metal ion gas flow after entering the power generation channel of this utility model.

[0022] Figure 5 This is a schematic diagram of the overall structure of the guide plate of this utility model.

[0023] The attached diagram is labeled as follows: 1. Power generation channel; 2. Inlet; 3. Electrode; 4. Guide plate; 5. Auxiliary support; 6. Arc-shaped surface; 7. Flat surface; 8. Spherical body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] As attached Figure 1 To be continued Figure 5 The magnetohydrodynamic (MHD) power generation auxiliary device shown includes a power generation channel 1, an inlet 2 at one end of the side of the power generation channel 1, electrodes 3 at both the upper and lower ends of the inner wall of the power generation channel 1, guide plates 4 at both the upper and lower ends of the inner wall of the power generation channel 1, an auxiliary support 5 fixedly installed on the inner side of the guide plate 4, the protrusion of the auxiliary support 5 pointing towards the side of the inlet 2, and the top of the auxiliary support 5 fixed at the connection between the arc-shaped surface 6 and the straight surface 7.

[0026] The outer trajectory of the guide plate 4 includes an arc-shaped surface 6, one end of which is connected to a straight surface 7. A spherical body 8 is fixedly installed at the tail end of the guide plate 4. The overall curvature of the arc-shaped surface 6 gradually becomes smoother from one end near the inlet 2 to the other end. The straight surface 7 is generally inclined and gradually rises towards the inside of the power generation channel 1. The surface of the spherical body 8 is arc-shaped. The horizontal height of the arc-shaped surface 6, the straight surface 7, and the spherical body 8 gradually increases.

[0027] The power generation channel 1 has an overall conical narrowing channel design. Both the power generation channel 1 and the electrode 3 are made of high-temperature resistant materials. The guide plate 4 is made of a non-ferromagnetic elastic material with a smooth surface. The connection between the arc-shaped surface 6 and the straight surface 7 is seamless. One side of the spherical body 8 is tangentially distributed to the top surface of the straight surface 7. The auxiliary support 5 is made of elastic material, and its bottom end is fixedly connected to the inner wall of the power generation channel 1. Through these arrangements, when the airflow passes over the surfaces of the arc-shaped surface 6 and the straight surface 7, the entire… The guiding process is smooth and unobstructed, ensuring that the airflow is not excessively disturbed or obstructed, thus guaranteeing the accuracy of its flow direction. At the same time, through the spherical body 8 set at the tail end of the guide plate 4, after the airflow passes over the surfaces of the arc-shaped surface 6 and the straight surface 7, the arc-shaped surface 6 and the straight surface 7 can deform inward through their own elasticity to avoid the obstruction. Under the gravity of the spherical body 8, the inertial force of the guide plate 4 during overall deformation and contraction is increased, thereby adapting to different airflow speeds. After avoiding the obstruction, the guide plate 4 can be driven back to its original position by the elasticity of the compressed auxiliary support 5, further improving its performance.

[0028] The overall trajectory length of the flat surface 7 is greater than the overall trajectory length of the arc surface 6. The guide plate 4 is located on one side of the electrode 3, and the horizontal height of the guide plate 4 is greater than the horizontal height of the electrode 3.

[0029] Please refer to the attached instruction manual for details. Figure 5 The spherical body 8 is positioned diagonally downwards, and the inner side of the spherical body 8 is connected to the inner side of the flat surface 7 by a rounded transition.

[0030] The specific implementation method is as follows: With the above-mentioned arrangement, it can be ensured that after the airflow passes through the surface of the flat surface 7, it can smoothly leave the flat surface 7 and flow towards the depth of the power generation channel 1. Furthermore, after leaving the tail end of the flat surface 7, the airflow will not generate a large-scale turbulence at the tail end of the flat surface 7 due to the arc-shaped arrangement of the spherical body 8, thereby further improving the practicality of the device.

[0031] The working principle of this utility model:

[0032] Step 1: First, the operator assembles all the components of the device normally, and then uses the device normally.

[0033] Step Two: First, when the gas flow containing metal ions passes at high speed through the power generation channel 1 in the strong magnetic field, the gas flow first contacts the arc-shaped surface 6 above the guide plate 4. Guided by the arc-shaped surface 6, it continues to flow towards the surface of the flat surface 7 and eventually leaves the surface of the flat surface 7. At this time, the gas flow is guided to a deeper level at an angle, and after the upper and lower gas flows merge, they flow uniformly to the center of the power generation channel 1. Thus, through the cooperation of the arc-shaped surface 6 and the flat surface 7, the high-speed gas flow is prevented from directly impacting the end of the electrode 3, thereby reducing the local pressure on the electrode 3. This allows the gas flow to pass evenly and over a large area through the middle of the power generation channel 1, that is, over a large area of ​​the surface of the electrode 3, thus preventing the electrode 3 from being rapidly corroded. The gas flow then passes through the flat surface 7. After the surface of the flat surface 7 is reached, the airflow is smoothly separated from the surface of the flat surface 7 by the arc-shaped arrangement of the spherical body 8 and flows into the depth of the power generation channel 1. The airflow is guided by the spherical body 8 and will not generate a large-scale turbulence at the tail end of the flat surface 7, further improving the working effect of the device. At the same time, the spherical body 8 at the tail end of the guide plate 4 allows the airflow to pass over the surfaces of the arc-shaped surface 6 and the flat surface 7. The arc-shaped surface 6 and the flat surface 7 can deform inward by their own elasticity to avoid the flow. Under the gravity of the spherical body 8, the inertial force of the guide plate 4 during overall deformation and contraction is increased, thereby adapting to different airflow speeds. Finally, the device completes the function of guiding the airflow inside the power generation channel 1 and preventing the electrode 3 from being eroded too quickly.

[0034] Step 3: First, the operator shuts down the device normally. Then, the operator checks whether the fixing between the various components of the device is normal. Then, the operator replaces and repairs the aging and severely worn parts inside the device.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetohydrodynamic (MHD) power generation auxiliary device, comprising a power generation channel, an inlet at one end of the side of the power generation channel, and electrodes at both the upper and lower ends of the inner wall of the power generation channel, characterized in that: The inner wall of the power generation channel is provided with guide plates at both the upper and lower ends. An auxiliary support is fixedly installed on the inner side of the guide plate. The protrusion of the auxiliary support points to the side of the inlet, and the top of the auxiliary support is fixed at the junction of the arc-shaped surface and the straight surface. The outer trajectory of the guide plate includes an arc-shaped surface, one end of which is connected to a straight surface. A spherical body is fixedly installed at the tail end of the guide plate. The overall curvature of the arc-shaped surface gradually becomes smoother from one end near the inlet to the other end. The straight surface is generally distributed in an inclined manner and gradually rises towards the inside of the power generation channel. The surface of the spherical body is arc-shaped. The horizontal height of the arc-shaped surface, the straight surface, and the spherical body gradually increases.

2. The magnetohydrodynamic power generation auxiliary device according to claim 1, characterized in that: The power generation channel has a tapered, narrowing design, and both the power generation channel and the electrodes are made of high-temperature resistant materials.

3. The magnetohydrodynamic power generation auxiliary device according to claim 1, characterized in that: The guide plate is made entirely of a non-ferromagnetic elastic material, and the surface of the guide plate is smooth.

4. The magnetohydrodynamic power generation auxiliary device according to claim 1, characterized in that: The arc-shaped surface and the flat surface are seamlessly connected, and the trajectory of one side of the sphere is tangential to the top surface of the flat surface.

5. The magnetohydrodynamic power generation auxiliary device according to claim 1, characterized in that: The spherical body is oriented diagonally downwards, and the inner side of the spherical body is connected to the inner side of the flat surface by a rounded transition.

6. The magnetohydrodynamic power generation auxiliary device according to claim 1, characterized in that: The auxiliary support is made of elastic material, and its bottom end is fixedly connected to the inner wall of the power generation channel.

7. The magnetohydrodynamic power generation auxiliary device according to claim 1, characterized in that: The overall trajectory length of the flat surface is greater than the overall trajectory length of the arc-shaped surface, the guide plate is located on one side of the electrode, and the horizontal height of the guide plate is greater than the horizontal height of the electrode.

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