Equalizing ring and accelerator having the same

Abstract

The utility model discloses a kind of equalizing ring and accelerator with it, equalizing ring includes: body, be formed as elliptic arc piece with radian greater than 180 °, the elliptic arc piece is symmetrically arranged about its short axis of ellipse, the body is inside to the side of its ellipse center, the side of its ellipse center is outside;Two connecting pieces, the connecting piece is located in the inside of the body, and is connected with the inside of the body respectively.According to the equalizing ring of the utility model embodiment, by setting the body as elliptic arc piece, electric field distribution can be more effectively changed, the maximum electric field intensity at the edge of equalizing ring is reduced, while the structure capacitance size of low field intensity region between elliptic arc center and end portion can be increased, so as to reduce the voltage drop and ripple of high-frequency high-voltage accelerator output voltage, or reduce the volume of high-frequency high-voltage accelerator.

Description

Technical Field

[0001] This utility model belongs to the field of accelerator technology, specifically relating to an equalizing ring and an accelerator having the same. Background Technology

[0002] In high-frequency, high-voltage accelerators, the equalizing ring plays a crucial role. Its main function is to form a structural capacitor with the electrode plates, carrying the rectified DC high voltage. Because the voltage carried on the equalizing ring is extremely high, discharge may occur between the equalizing ring and the electrode plates, leading to a decrease in the accelerator's operational stability. Therefore, measures need to be taken to reduce the electric field strength around the equalizing ring and decrease the probability of discharge. Equalizing rings typically employ a semi-circular design, with multiple rings placed symmetrically with their openings facing each other, spaced at a certain distance to prevent head-on breakdown. Using a semi-circular equalizing ring would result in unequal relative distances between the edge and center. Using a semi-circular division to make the edge and center distance equal would cause the arc edge of the equalizing ring to point outwards, while the pointed edge would point towards the electrode plate, leading to an excessively high electric field strength between the equalizing ring and the electrode plate, potentially causing discharge.

[0003] Existing high-frequency high-voltage accelerator equalizing rings typically employ a semi-circular design, with two additional ends joined to both sides of a large arc to achieve a semi-circular structure, thereby reducing the electric field intensity at the ring's edge. However, if the end joints of the equalizing ring bend too far inward into the arc, the structural capacitance between the electrode plate and the equalizing ring decreases, affecting the output voltage drop and ripple, and reducing the accelerator's stability. Conversely, if the ends bend too little inward into the arc region, the optimization effect on the electric field intensity will be poor. Given the smooth connection between the main arc of the equalizing ring and the two ends, it is difficult to simultaneously achieve satisfactory structural capacitance and electric field optimization. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide an equalizing ring and an accelerator having the same, so as to solve the problem that it is difficult to simultaneously achieve the desired structural capacitance and electric field optimization effects in the prior art.

[0005] The first aspect of this utility model provides a pressure equalization ring, comprising: The body is formed as an elliptical arc-shaped component with an arc angle greater than 180°. The elliptical arc-shaped component is symmetrical about the minor axis of the ellipse in which it is located. The side of the body facing the center of the ellipse is the inner side, and the side facing away from the center of the ellipse is the outer side. Two connectors are located inside the body and are respectively connected to the inside of the body.

[0006] Furthermore, the major axis endpoint and minor axis endpoint of the ellipse in which the body is located are respectively located on the circumference of the same circle.

[0007] Furthermore, the two connectors are arranged symmetrically about the minor axis of the ellipse in which the body is located.

[0008] Furthermore, the connector extends along the minor axis of the ellipse containing the body, and the length of the connector in the direction parallel to the minor axis is less than the span of the body in the direction of the minor axis. The connector is integrally disposed on the inner side of the body.

[0009] Furthermore, the edges of the body are rounded.

[0010] Furthermore, the body is made of stainless steel; and / or the connector is made of stainless steel.

[0011] Furthermore, the inner surface of the body has an inwardly recessed thinning region; and / or, the surface of the body is a polished surface.

[0012] A second aspect of this utility model provides an accelerator, comprising: A power supply steel drum, wherein the interior of the power supply steel drum is defined by a receiving cavity extending along its axial direction; Two electrode plates are disposed symmetrically within the receiving cavity and extend axially along the receiving cavity. The equalizing ring described in the above embodiment is divided into two groups. Each group includes multiple equalizing rings evenly spaced along the axial direction of the receiving cavity. Each group of equalizing rings is correspondingly disposed on an electrode plate. The inner sides of the equalizing ring bodies in the two groups of equalizing rings are disposed opposite to each other, and the outer sides are respectively disposed towards the corresponding electrode plates.

[0013] Furthermore, the axis of symmetry of the electrode plate on the radial cross-section of the power supply steel drum coincides with or is parallel to the axis of symmetry of the corresponding equalizing ring on the radial cross-section of the power supply steel drum.

[0014] Furthermore, the accelerator also includes an insulating support, which is disposed inside the power supply steel barrel and is connected to the connector of the equalizing ring.

[0015] According to the embodiment of the present invention, by setting the body of the equalizing ring as an elliptical arc, the electric field distribution can be changed more effectively, the maximum electric field intensity at the edge of the equalizing ring can be reduced, and the structural capacitance of the low field strength region between the center and the end of the elliptical arc can be increased, thereby reducing the voltage drop and ripple of the high-frequency high-voltage accelerator output voltage, or reducing the volume of the high-frequency high-voltage accelerator. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the equalizing ring according to an embodiment of the present invention; Figure 2 This is a radial cross-sectional view of the accelerator according to an embodiment of the present invention; Figure 3 This is a partial axial cross-sectional view of the accelerator according to an embodiment of the present invention.

[0017] Figure Labels

[0018] Accelerator 1000; Equalizing ring 100; Body 10; Connector 20; Power supply steel barrel 200; Electrode plate 300; Insulating bracket 400; Semicircular reference object A; major axis B; minor axis C. Detailed Implementation

[0019] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] The terms "first," "second," etc., used in the specification and claims of this utility model are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this utility model can be implemented in orders other than those illustrated or described herein. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] The following is combined Figures 1 to 3 The equalizing ring 100 provided in this utility model embodiment will be described in detail through specific embodiments and application scenarios.

[0022] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0023] According to an embodiment of the present invention, the equalizing ring 100 includes a body 10 and two connecting members 20.

[0024] Specifically, such as Figure 1 As shown, the body 10 is formed as an elliptical arc-shaped component with an arc greater than 180°. The elliptical arc-shaped component is symmetrically arranged about the minor axis C of the ellipse. The side of the body 10 facing the center of the ellipse is the inner side, and the side facing away from the center of the ellipse is the outer side. The two connecting parts 20 are located on the inner side of the body 10 and are respectively connected to the inner side of the body 10.

[0025] In other words, the equalizing ring 100 consists of two parts: the body 10 and the connector 20. The body 10 is an integrally formed elliptical arc, which is part of a complete ellipse. Its overall curvature is a smooth transition, and the curvature of the entire elliptical arc is greater than 180°, making it present an inwardly concave open ring. This unique elliptical arc ring design, compared with the existing three-segment semi-circular ring design, can shield the electric field at the inwardly concave edge through the elliptical arc.

[0026] Therefore, according to the embodiment of the present invention, by setting the body 10 as an elliptical arc-shaped component, the voltage equalization ring 100 can more effectively change the electric field distribution, reduce the maximum electric field intensity at the edge of the voltage equalization ring 100, and at the same time increase the structural capacitance of the low field strength region between the center and the end of the elliptical arc, thereby reducing the voltage drop and ripple of the output voltage of the high-frequency high-voltage accelerator 1000, or reducing the volume of the high-frequency high-voltage accelerator 1000.

[0027] According to one embodiment of the present invention, the major axis B and minor axis C of the ellipse in which the body 10 is located are respectively located on the circumference of the same circle.

[0028] Specifically, such as Figure 1 As shown, a semicircular reference object A is set, and the plate is made into an elliptical arc shape with reference to the radius of the semicircular reference object A. The outer edges of the major axis B and the minor axis C of the elliptical arc shape intersect the edge of the semicircular reference object A simultaneously. This ensures that the overall outer edge contour of the body 10 falls on the circle where the semicircular reference object A is located. In other words, the elliptical arc body 10 in this application is... Figure 1 The vertical and horizontal positions of the equalizing ring 100 are the same as those of the semi-circular reference object A, which facilitates the placement of the equalizing ring 100 within the power supply steel cylinder 200. Simultaneously, the two ends of the elliptical arc-shaped body 10 are extended to a curvature greater than 180°, creating an inwardly concave shape, thereby achieving the effect of shielding the distortion of the electric field at the edge of the body 10's ends using the middle of the body 10.

[0029] Preferably, the two connectors 20 are symmetrically arranged about the minor axis C of the ellipse in which the body 10 is located.

[0030] Furthermore, the connector 20 extends inward along the minor axis C of the ellipse containing the body 10, and the length of the connector 20 in the direction parallel to the minor axis C is less than the span of the body 10 in the direction of the minor axis C. The connector 20 is entirely disposed inside the body 10. In other words, the connector 20 is ensured to be completely inside the body 10, so that the electric field distortion caused by the connector 20 can be shielded by the body 10.

[0031] According to one embodiment of the present invention, the edges of the body 10 are rounded.

[0032] Specifically, a material of appropriate thickness for the body 10 is selected so that it achieves the required thickness structure after processing. Large rounded corners are machined at the edges of the elliptical body 10 in all directions to ensure a smooth transition on the surface of the body 10, reduce the electric field intensity at the edges of the body 10 in all directions, further reduce the electric field concentration phenomenon, and reduce the possibility of discharge.

[0033] Optionally, the body 10 is made of stainless steel; the connector 20 is made of stainless steel.

[0034] Furthermore, the inner surface of the body 10 has an inwardly recessed thinning region; the surface of the body 10 is a polished surface.

[0035] In other words, the inner side of the body 10 in the opening direction is shelled to reduce its weight while ensuring the structural strength of the body 10. When shelling the body 10, the overall thickness of the body 10 needs to be designed according to mechanical analysis and actual use requirements.

[0036] In addition, both the body 10 and the connector 20 can be made of stainless steel, and the surfaces of the body 10 and the connector 20 are finely polished to ensure that the overall surface roughness of the equalizing ring 100 meets the design requirements, ensuring that the surface of the equalizing ring 100 is smooth and reducing the possibility of tip discharge due to burrs on the surface of the equalizing ring 100.

[0037] According to a second aspect of the present invention, the accelerator 1000 includes a power supply steel tank 200, two electrode plates 300, and a plurality of equalizing rings 100 as described in the above embodiment.

[0038] Specifically, such as Figure 2 and Figure 3 As shown, the power supply steel barrel 200 has an internal cavity extending along its axial direction. Two electrode plates 300 are symmetrically arranged in the cavity and extend along the axial direction of the cavity. The equalizing rings 100 are divided into two groups, each group including multiple equalizing rings 100 evenly spaced along the axial direction of the cavity. Each group of equalizing rings 100 is correspondingly arranged on one electrode plate 300. The inner sides of the bodies 10 of the equalizing rings 100 in the two groups are arranged opposite to each other, and the outer sides are respectively arranged facing the corresponding electrode plates 300.

[0039] Specifically, inside the power supply steel drum 200 of the high-frequency high-voltage accelerator 1000, such as Figure 2 and 3As shown, equal-spaced voltage equalization rings 100 are arranged sequentially on the left and right sides along the height direction of the power supply steel barrel 200. Electrode plates 300 are respectively provided between each set of voltage equalization rings 100 and the inner wall surface of the power supply steel barrel 200. According to this embodiment of the utility model, by setting the body 10 of the voltage equalization ring 100 as an elliptical arc, the electric field distribution can be changed more effectively. This not only reduces the maximum electric field intensity at the edge of the voltage equalization ring 100, but also increases the size of the structural capacitance in the low-field region between the center and the end of the elliptical arc. This reduces the voltage drop and ripple of the output voltage of the high-frequency high-voltage accelerator 1000, thereby reducing the probability of electric field breakdown, improving the quality of the output voltage, and providing a reliable guarantee for the stable operation of the high-frequency high-voltage accelerator 1000.

[0040] According to one embodiment of the present invention, the axis of symmetry of the electrode plate 300 on the radial cross-section of the power supply steel drum 200 coincides with or is parallel to the axis of symmetry of the corresponding equalizing ring 100 on the radial cross-section of the power supply steel drum 200.

[0041] In other words, such as Figure 2 As shown, at the installation position of the power supply steel barrel 200, the body 10 and the electrode plate 300 are coaxially installed to ensure that on any radial cross-section of the power supply steel barrel 200, the axis of symmetry of the equalizing ring 100 coincides with the axis of symmetry of the corresponding electrode plate 300, so as to ensure the symmetry of the electric field and achieve maximum structural capacitance. Figure 3 As shown, the two sets of equalizing rings 100 are staggered to avoid the generation of unnecessary defective capacitors.

[0042] Furthermore, the accelerator 1000 also includes an insulating support 400, which is disposed inside the power steel barrel 200 and is connected to the connector 20 of the equalizing ring 100.

[0043] Specifically, an insulating bracket 400 is installed at the bottom of the power supply steel drum 200. The insulating bracket 400 is made of a high-strength, high-insulation material to support and fix the equalizing rings 100, ensuring the symmetry and stability of each equalizing ring 100. Each set of equalizing rings 100 is fixed on the insulating bracket 400. There is a certain distance between the arc-shaped edge of the body 10 in one set of equalizing rings 100 and the arc-shaped edge of the body 10 in another set of equalizing rings 100, thereby ensuring the insulation strength with the other set of equalizing rings 100.

[0044] Since the equalizing ring 100 according to the present invention has the advantages of reducing the volume of the accelerator 1000, optimizing the electric field, increasing the stability of the output voltage, providing a larger structural capacitance, reducing the output voltage ripple and voltage drop, and improving the system stability, the accelerator 1000 with the above-mentioned equalizing ring 100 also has the advantages of small size and stable output voltage.

[0045] Other structures and techniques of the accelerator 1000 according to the embodiments of this utility model are prior art and will not be described in detail here.

[0046] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A pressure equalizing ring, characterized in that, include: The body is formed as an elliptical arc-shaped component with an arc angle greater than 180°. The elliptical arc-shaped component is symmetrical about the minor axis of the ellipse in which it is located. The side of the body facing the center of the ellipse is the inner side, and the side facing away from the center of the ellipse is the outer side. Two connectors are located inside the body and are respectively connected to the inside of the body.

2. The equalizing ring according to claim 1, characterized in that, The major axis endpoint and minor axis endpoint of the ellipse containing the body are located on the same circular circumference.

3. The equalizing ring according to claim 1, characterized in that, The two connectors are arranged symmetrically about the minor axis of the ellipse in which the body is located.

4. The equalizing ring according to claim 1, characterized in that, The connector extends along the minor axis of the ellipse containing the body, and the length of the connector in the direction parallel to the minor axis is less than the span of the body in the direction of the minor axis. The connector is integrally disposed on the inner side of the body.

5. The equalizing ring according to claim 1, characterized in that, The edges of the body are rounded.

6. The equalizing ring according to claim 1, characterized in that, The body is made of stainless steel; and / or the connector is made of stainless steel.

7. The equalizing ring according to claim 1, characterized in that, The inner surface of the body has an inwardly recessed thinning region; and / or, the surface of the body is a polished surface.

8. An accelerator, characterized in that, include: A power supply steel drum, wherein the interior of the power supply steel drum is defined by a receiving cavity extending along its axial direction; Two electrode plates are disposed symmetrically within the receiving cavity and extend axially along the receiving cavity. The equalizing ring according to any one of claims 1-7 is divided into two groups, each group including multiple equalizing rings evenly spaced along the axial direction of the receiving cavity, each group of equalizing rings being correspondingly disposed on an electrode plate, the inner sides of the equalizing ring bodies in the two groups of equalizing rings being disposed opposite to each other, and the outer sides being disposed facing the corresponding electrode plates respectively.

9. The accelerator according to claim 8, characterized in that, The axis of symmetry of the electrode plate on the radial cross-section of the power supply steel drum coincides with or is parallel to the axis of symmetry of the corresponding equalizing ring on the radial cross-section of the power supply steel drum.

10. The accelerator according to claim 8, characterized in that, Also includes: An insulating support is disposed inside the power supply steel drum and is connected to the connector of the equalizing ring.

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