Spherical element temporary storage device and pebble bed reactor

Abstract

The present disclosure provides a spherical element temporary storage device and a pebble bed reactor, the spherical element temporary storage device comprising: at least one temporary storage pipe, the temporary storage pipe having a temporary storage channel, the temporary storage channel being used for temporarily storing spherical elements, a temporary storage inlet and a temporary storage outlet of the temporary storage channel being arranged in a distribution manner along a gravity direction, and the temporary storage channel being configured to allow the spherical elements to pass through in a single column under the action of gravity. In this way, the spherical elements are distributed in the temporary storage channel in a single column and pass through the temporary storage channel in a single column, so that the spherical elements cannot be stacked in the temporary storage channel, and the bridging phenomenon of the spherical elements can be avoided.

Description

Technical Field

[0001] This disclosure relates to the field of pebble bed technology, and more specifically, to a spherical element storage device and a pebble bed reactor. Background Technology

[0002] Pebble bed technology is an advanced engineering technology that uses spherical particles as the core medium to form a bed within a container for physical or chemical reactions. Pebble bed technology can be applied to nuclear energy, such as in pebble bed reactors.

[0003] The pebble bed high-temperature gas-cooled reactor is a type of pebble bed reactor. In related technologies, the pebble bed high-temperature gas-cooled reactor implements non-stop refueling, and a large number of spherical fuel elements need to be temporarily stored in temporary storage devices such as loading temporary storage devices and unloading temporary storage devices.

[0004] In related technologies, temporary storage devices include hoppers and bridge-breaking mechanisms. Spherical components are prone to getting stuck and supporting each other in the hopper, forming an arch bridge structure, i.e., spherical components become bridged. Bridge-breaking mechanisms such as magnetic drive disturbance are needed to break the bridges to ensure the transport of spherical components.

[0005] In addition, the temporary storage device includes power equipment such as a bridge breaking mechanism, and the structure of the temporary storage device is relatively complex and the manufacturing cost is relatively high.

[0006] In summary, how to design a temporary storage device for spherical components to avoid bridging is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, the purpose of this disclosure is to provide a spherical element temporary storage device and a pebble bed reactor to avoid bridging of spherical elements.

[0008] To achieve the above objectives, this disclosure provides the following technical solution:

[0009] A spherical element temporary storage device, comprising:

[0010] At least one temporary storage tube has a temporary storage channel for temporarily storing spherical elements. The temporary storage channel has a temporary storage inlet and a temporary storage outlet distributed along the direction of gravity, and the temporary storage channel is configured to allow the spherical elements to pass through in a single row under the action of gravity.

[0011] In some possible embodiments, the minimum width of the temporary storage channel is greater than the diameter of the spherical element, and the maximum width of the temporary storage channel is less than twice the diameter of the spherical element.

[0012] In some possible embodiments, at least one of the temporary storage tubes is a straight tube, and the axial direction of the temporary storage tube is parallel to the direction of gravity, or the axial direction of the temporary storage tube is inclined to the direction of gravity.

[0013] Alternatively, at least one of the temporary storage pipes includes at least two straight pipe sections and at least one bend pipe section, with two adjacent straight pipe sections connected through the bend pipe section, and the two adjacent straight pipe sections are axially inclined.

[0014] Alternatively, at least one of the temporary storage tubes is a spiral tube.

[0015] In some possible embodiments, the temporary storage tube is a metal tube;

[0016] And / or, the length of the temporary storage channel is not less than 0.5m.

[0017] In some possible embodiments, there are at least two temporary storage tubes;

[0018] The spherical element temporary storage device further includes a first conveying and conversion device, which includes a first housing and a first conversion component. The first housing is provided with a first inlet and at least two first outlets. The first conversion component is provided with a first conversion channel. One end of the first conversion channel is connected to the first inlet. The first conversion component is movably disposed in the first housing to switch the other end of the first conversion channel to be connected to different first outlets.

[0019] The temporary storage inlet and the first outlet are connected.

[0020] In some possible embodiments, both the first inlet and the first outlet are configured to allow a single spherical element to pass through, and the first conversion channel is configured to allow the spherical elements to pass through in a single file under gravity;

[0021] And / or, the first conversion component is rotatably disposed within the first housing, and the axis of rotation of the first conversion component is perpendicular to the direction of gravity.

[0022] In some possible embodiments, the spherical element temporary storage device further includes a second conveying and conversion device, which includes a second housing and a second conversion component; the second housing is provided with at least two second inlets and a second outlet, the second conversion component is provided with a second conversion channel, one end of the second conversion channel is connected to the second outlet, and the second conversion component is movably disposed within the second housing to switch the other end of the second conversion channel to be connected to different second inlets;

[0023] The temporary storage outlet and the second inlet are connected.

[0024] In some possible embodiments, both the second inlet and the second outlet are configured to allow a single spherical element to pass through, and the second conversion channel is configured to allow the spherical elements to pass through in a single file under gravity;

[0025] And / or, the second conversion component is rotatably disposed within the second housing, and the axis of rotation of the second conversion component is perpendicular to the direction of gravity.

[0026] In some possible embodiments, the spherical element temporary storage device further includes an input tube connected to the first inlet, and the input tube is provided with at least one of a switching valve and a counter;

[0027] The switching valve controls the on / off state of the input tube, and the counter is used to measure the number of the spherical elements.

[0028] Based on the spherical element storage device provided above, this disclosure also provides a pebble bed reactor, which includes the spherical element storage device described in any of the above embodiments.

[0029] In the spherical component temporary storage device provided in this disclosure, the temporary storage tube has a temporary storage channel for temporarily storing spherical components. The temporary storage inlet and temporary storage outlet of the temporary storage channel are arranged to be distributed along the direction of gravity. The temporary storage channel is configured to allow spherical components to pass through in a single row under the action of gravity, so that the spherical components are distributed in a single row in the temporary storage channel and pass through the temporary storage channel in a single row, so that the spherical components cannot accumulate in the temporary storage channel, thus avoiding the phenomenon of bridging of spherical components.

[0030] The technical features mentioned above, as well as those shown individually in the accompanying drawings, can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0032] Figure 1 A schematic diagram of a structure in which the temporary storage tube of the spherical element temporary storage device provided in this embodiment of the disclosure is a straight tube;

[0033] Figure 2A schematic diagram of a structure in which the temporary storage tube of the spherical element temporary storage device provided in this embodiment of the disclosure is a bent tube;

[0034] Figure 3 A schematic diagram of the structure of the spherical element temporary storage device provided in the embodiments of this disclosure.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Temporary storage pipe, 1a-Straight pipe, 1b-Bend, 11-Straight pipe section, 12-Bend section, 13-Temporary storage channel, 131-Temporary storage inlet, 132-Temporary storage outlet;

[0037] 2-First conveying and conversion device, 21-First housing, 211-First inlet, 212-First outlet, 22-First conversion component, 221-First conversion channel;

[0038] 3-Second conveying and conversion device, 31-Second housing, 311-Second inlet, 312-Second outlet, 32-Second conversion component, 321-Second conversion channel;

[0039] 4-Input tube;

[0040] 5-Switch valve;

[0041] 6-Counter;

[0042] 7-Output tube;

[0043] 8-Spherical element. Detailed Implementation

[0044] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0045] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. As used in the specification and appended claims of this disclosure, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in embodiments of this disclosure, “one or more” means one, two, or more; “and / or” describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0046] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this disclosure include a particular feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0047] The term "multiple" in this disclosure refers to two or more embodiments. It should be noted that in the description of the embodiments in this disclosure, terms such as "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance, nor as indicating or implying order.

[0048] The terms "parallel" and "perpendicular" used in this disclosure refer to "basically parallel" and "basically perpendicular" in actual operation. "Basically parallel" can be understood as parallelism with a certain degree of error, and similarly, "basically perpendicular" can be understood as perpendicularity with a certain degree of error.

[0049] like Figures 1-3 As shown, the spherical element temporary storage device provided in this embodiment includes a temporary storage tube 1, and there is at least one temporary storage tube 1. For example, there may be one temporary storage tube 1 or at least two temporary storage tubes 1. In embodiments where there are at least two temporary storage tubes 1, any two temporary storage tubes 1 are arranged side by side.

[0050] The temporary storage tube 1 has a temporary storage channel 13, which has a temporary storage inlet 131 and a temporary storage outlet 132. The temporary storage inlet 131 and the temporary storage outlet 132 of the temporary storage channel 13 are arranged to be distributed along the direction of gravity. It can be understood that, in the direction of gravity, the temporary storage inlet 131 can be higher than the temporary storage outlet 132.

[0051] Temporary storage channel 13 is used to temporarily store spherical components 8. Spherical components 8 can enter temporary storage channel 13 from temporary storage inlet 131 and exit temporary storage channel 13 from temporary storage outlet 132.

[0052] It should be noted that the spherical element 8 is spherical and may include a spherical fuel element or a graphite sphere, wherein the graphite sphere may be called a reflective sphere or a moderator sphere.

[0053] The temporary storage channel 13 is configured to allow the spherical elements 8 to pass through in a single row under the influence of gravity. It is understood that the temporary storage channel 13 accommodates the spherical elements 8 in a single row, meaning the spherical elements 8 are arranged in a single row within the temporary storage channel 13. The arrangement direction of the spherical elements 8 within the temporary storage channel 13 is consistent with the axis of the temporary storage channel 13. For example, the arrangement direction of the spherical elements 8 within the temporary storage channel 13 can be parallel to the axis of the temporary storage channel 13, resulting in an axial stacking force between the spherical elements 8, rather than a radial interlocking support force.

[0054] In the spherical component temporary storage device provided in this embodiment, the temporary storage tube 1 has a temporary storage channel 13. The temporary storage channel 13 is used to temporarily store spherical components 8. The temporary storage inlet 131 and the temporary storage outlet 132 of the temporary storage channel 13 are arranged to be distributed along the direction of gravity. The temporary storage channel 13 is configured to allow the spherical components 8 to pass through in a single row under the action of gravity, so that the spherical components 8 are distributed in a single row in the temporary storage channel 13 and pass through the temporary storage channel 13 in a single row, so that the spherical components 8 cannot accumulate in the temporary storage channel 13, and the bridging phenomenon of the spherical components 8 can be avoided.

[0055] In the spherical element temporary storage device provided in this embodiment, the temporary storage channel 13 is configured to allow the spherical elements 8 to pass through in a single row under gravity without the need for additional power pushing. This makes it unnecessary for the spherical element 8 temporary storage device to be equipped with a drive device to move the spherical elements 8, which can effectively simplify the structure of the spherical element temporary storage device and effectively reduce the manufacturing cost of the spherical element temporary storage device. Moreover, the gravity conveying method of the spherical elements 8 can improve the reliability of the conveying, which is conducive to the accurate and orderly conveying of fuel balls during the refueling process without stopping the reactor, and can improve the operational flexibility of pebble bed reactors such as pebble bed high-temperature gas-cooled reactors.

[0056] The spherical component temporary storage device provided in this embodiment can avoid the bridging phenomenon of the spherical component 8, so that the spherical component temporary storage device does not need to be equipped with a bridging mechanism, which can effectively simplify the structure of the spherical component temporary storage device and effectively reduce the manufacturing cost of the spherical component temporary storage device.

[0057] The spherical component temporary storage device provided in this embodiment simplifies the structure of the spherical component temporary storage device and thus reduces potential failure points.

[0058] In the spherical component temporary storage device provided in this embodiment, there is at least one temporary storage tube 1, which can form a modular temporary storage. For example, the number of temporary storage tubes 1 can be adjusted according to actual working conditions, which can improve the flexibility of temporary storage and also improve the scalability of the capacity of the spherical component temporary storage device.

[0059] To facilitate control of the ball element 8 entering and exiting the temporary storage channel 13, the temporary storage tube 1 may be equipped with a first valve and a second valve. The first valve is located at the temporary storage inlet 131 of the temporary storage channel 13 and is used to control the opening and closing of the temporary storage inlet 131; the second valve is located at the temporary storage outlet 132 of the temporary storage channel 13 and is used to control the opening and closing of the temporary storage outlet 132.

[0060] The types of the first valve and the second valve are selected according to the actual situation, and this disclosure does not limit this.

[0061] like Figure 1 As shown, in order to ensure that the temporary storage channel 13 allows the spherical elements 8 to pass through in a single row under the action of gravity, the minimum width of the temporary storage channel 13 is greater than the diameter of the spherical elements 8, and the maximum width of the temporary storage channel 13 is less than twice the diameter of the spherical elements 8. In this way, it can ensure that a single spherical element 8 can pass through smoothly, and prevent two spherical elements 8 from getting stuck side by side in the temporary storage channel 13.

[0062] It should be noted that the spherical element 8 has a spherical structure and a diameter of R2.

[0063] For example, the cross-section of the temporary storage channel 13 can be circular. The minimum width of the temporary storage channel 13 is its minimum diameter, and the maximum width of the temporary storage channel 13 is its maximum diameter. The temporary storage channel 13 can also have a constant diameter structure, where the minimum diameter and the maximum diameter of the temporary storage channel 13 are equal. Figure 1As shown, the diameter of the temporary storage channel 13 is R1; alternatively, the temporary storage channel 13 can be a non-uniform diameter structure in its axial direction, with the minimum diameter of the temporary storage channel 13 being the minimum value among all diameters of the temporary storage channel 13, and the maximum width of the temporary storage channel 13 being the maximum value among all diameters of the temporary storage channel 13. For example, the temporary storage tube 1 is a circular tube, the cross-section of the temporary storage channel 13 is circular, and the temporary storage tube 1 can be a standard series DN65 metal tube with a nominal diameter of 65mm. This standard can be a Chinese standard or an international standard; alternatively, the temporary storage tube 1 can also be of other sizes, which is not limited in this embodiment.

[0064] For example, the cross-section of the temporary storage channel 13 can be a polygon, such as a square, rectangle, or regular hexagon. The minimum width of the temporary storage channel 13 is the minimum value among the inscribed circle diameters of the cross-section of the temporary storage channel 13, and the maximum width of the temporary storage channel 13 is the maximum value among the inscribed circle diameters of the cross-section of the temporary storage channel 13.

[0065] For example, the cross-section of the temporary storage channel 13 can be other shapes, and is not limited to circles and polygons.

[0066] like Figure 1 As shown, in some embodiments, at least one temporary storage tube 1 is a straight tube 1a, and the axial direction of the temporary storage tube 1 is parallel to the direction of gravity, or the axial direction of the temporary storage tube 1 is inclined to the direction of gravity. In this way, the structure of the temporary storage tube 1 is relatively simple, the processing cost is low, and it is suitable for scenarios where there is sufficient space in the direction of gravity and there is no need to change the conveying direction.

[0067] like Figure 2 As shown, in some other embodiments, at least one temporary storage tube 1 can be a bend 1b. Specifically, at least one temporary storage tube 1 includes at least two straight pipe sections 11 and at least one bend 12, with adjacent straight pipe sections 11 connected by the bend 12, and the axial directions of the adjacent straight pipe sections 11 are inclined. It should be noted that the bend 12 can be called an elbow. In this way, adjacent straight pipe sections 11 can be smoothly connected by the bend 12, which facilitates the smooth passage of the spherical element 8 through the temporary storage channel 13 and avoids bridging of the spherical element 8; moreover, compared with the straight pipe 1a, the bend 1b can increase the length of the temporary storage channel 13 within a limited space, and can also change the conveying direction of the spherical element 8.

[0068] In some other embodiments, at least one temporary storage tube 1 is a spiral tube. The spiral tube can greatly increase the effective temporary storage length per unit vertical height, which can effectively improve space utilization. It is particularly suitable for scenarios where a large number of spherical components 8 can be temporarily stored in a small footprint.

[0069] like Figure 3As shown, in embodiments where there are at least two temporary storage tubes 1, the shapes of the at least two temporary storage tubes 1 can be the same, for example, the at least two temporary storage tubes 1 can be straight tubes 1a or bent tubes 1b; or, the shapes of the at least two temporary storage tubes 1 can be different, for example, at least one temporary storage tube 1 can be a straight tube 1a and at least one temporary storage tube 1 can be a bent tube 1b.

[0070] In some embodiments, the temporary storage tube 1 can be a metal tube, such as a stainless steel tube or a tube made of other wear-resistant materials, to ensure that the temporary storage tube 1 has sufficient mechanical strength and wear resistance.

[0071] In some other embodiments, the temporary storage tube 1 may also be made of other wear-resistant materials, and is not limited to metal.

[0072] To ensure the capacity of the temporary storage tube 1, the length of the temporary storage channel 13 is not less than 0.5m. For example, the length of the temporary storage channel 13 can be 0.5m, 1m, 1.5m, 2m, 3m, 5m, or others. This embodiment does not limit the specific length of the temporary storage channel 13.

[0073] For example, temporary storage tube 1 is a straight tube 1a, such as Figure 3 As shown, the length of the temporary storage channel 13 of the straight pipe 1a is L. It can be understood that the length of the temporary storage channel 13 refers to the length of the temporary storage channel 13 extending along its axial direction.

[0074] As mentioned above, there are at least two temporary storage tubes 1, and at least two temporary storage tubes 1 are arranged side by side. Figure 3 As shown, in order to facilitate the switching of at least two temporary storage tubes 1, the above-mentioned spherical element temporary storage device also includes a first conveying and conversion device 2.

[0075] The first conveying and conversion device 2 includes a first housing 21 and a first conversion component 22. The first housing 21 is provided with a first inlet 211 and at least two first outlets 212. The first conversion component 22 is provided with a first conversion channel 221, one end of which is connected to the first inlet 211. The first conversion component 22 is movably disposed within the first housing 21 to switch the other end of the first conversion channel 221 to be connected to different first outlets 212. A temporary storage inlet 131 is connected to the first outlet 212. For example, when the first conversion component 22 moves to a first position, the first conversion channel 221 connects the first inlet 211 and one first outlet 212; when the first conversion component 22 moves to a second position, the first conversion channel 221 connects the first inlet 211 and another first outlet 212.

[0076] In the above embodiment, by moving the first conversion component 22, the spherical element 8 from the first inlet 211 can be allocated to different first outlets 212 as needed, so that it enters different temporary storage tubes 1, and each temporary storage tube 1 can temporarily store the spherical element 8.

[0077] To improve the integration of the spherical element temporary storage device, the temporary storage tube 1 can be disposed on the first housing 21. For example, the inlet end of the temporary storage tube 1 (i.e. the end with the temporary storage inlet 131) is welded to the first outlet 212 of the first housing 21, or the temporary storage tube 1 is fixed to the first outlet 212 of the first housing 21 by fasteners.

[0078] In some embodiments, both the first inlet 211 and the first outlet 212 are configured to allow a single spherical element 8 to pass through, and the first conversion channel 221 is configured to allow the spherical elements 8 to pass through in a single row under the action of gravity. In this way, inside the first conveying and conversion device 2, the spherical elements 8 always remain in a single-row orderly state, which can avoid blockage of the spherical elements 8 and thus avoid bridging of the spherical elements 8.

[0079] like Figure 3 As shown, in some embodiments, the first conversion component 22 is rotatably disposed within the first housing 21, and the rotation axis of the first conversion component 22 is perpendicular to the direction of gravity; wherein any two first outlets 212 are sequentially distributed along the circumference of the first housing 21, and the first conversion component 22 can rotate clockwise or counterclockwise, which is not limited in this embodiment. In this way, the structural compactness of the first conveying conversion device 2 can be improved, it is convenient to switch the first conversion channel 221 to different first outlets 212, and the switching speed can also be improved.

[0080] In some other embodiments, the first conversion component 22 may be translatably disposed within the first housing 21 to switch the first conversion channel 221 to communicate with different first outlets 212; or, the movement of the first conversion component 22 may also include rotation and translation.

[0081] like Figure 3 As shown, in some embodiments, the spherical element temporary storage device further includes a second conveying and conversion device 3. The second conveying and conversion device 3 includes a second housing 31 and a second conversion component 32. The second housing 31 is provided with at least two second inlets 311 and a second outlet 312. The second conversion component 32 is provided with a second conversion channel 321. One end of the second conversion channel 321 is connected to the second outlet 312. The second conversion component 32 is movably disposed in the second housing 31 to switch the other end of the second conversion channel 321 to be connected to different second inlets 311. The temporary storage outlet 132 is connected to the second inlet 311.

[0082] For example, the second conversion component 32 moves to the first position, and the second conversion channel 321 connects the second outlet 312 and a second inlet 311; the second conversion component 32 moves to the second position, and the second conversion channel 321 connects the second outlet 312 and another second inlet 311.

[0083] In the above embodiment, by moving the second conversion component 32, the spherical elements 8 from different temporary storage tubes 1 are gathered to the same second outlet 312 for output, so that each temporary storage tube 1 can output the spherical element 8.

[0084] To improve the integration of the spherical element temporary storage device, the temporary storage tube 1 can be disposed in the second housing 31. For example, the temporary storage tube 1 can be welded to the second housing 31, or the temporary storage tube 1 can be fixed to the second housing 31 by fasteners.

[0085] In some embodiments, the second inlet 311 and the second outlet 312 are both configured to supply a single spherical element 8, and the second conversion channel 321 is configured to allow the spherical elements 8 to pass through in a single row under gravity. In this way, inside the second conveying conversion device 3, the spherical elements 8 always remain in a single-row orderly state, which can avoid blockage of the spherical elements 8 and thus avoid bridging of the spherical elements 8.

[0086] In this embodiment, the second conversion component 32 is rotatably disposed within the second housing 31, and the rotation axis of the second conversion component 32 is perpendicular to the direction of gravity. Any two second inlets 311 are sequentially distributed along the circumference of the second housing 31, and the second conversion component 32 can rotate clockwise or counterclockwise; this embodiment does not limit this rotation. This improves the structural compactness of the second conveying conversion device 3, facilitates switching the second conversion channel 321 to different second inlets 311, and also increases the switching speed.

[0087] In this embodiment, the movement of the second conversion component 32 may also be other, for example, the second conversion component 32 may be translatably disposed within the second housing 31, and is not limited to the above embodiment.

[0088] like Figure 3 As shown, in some embodiments, the spherical element storage device further includes an input tube 4, which is connected to the first inlet 211. To simplify the structure of the input tube 4, the input tube 4 can be a straight tube, and the axis of the input tube 4 is arranged parallel to or inclined to the direction of gravity.

[0089] The input pipe 4 is equipped with at least one of a switching valve 5 and a counter 6.

[0090] The switching valve 5 is used to control the on / off state of the input pipe 4 to control the input of the ball element 8. The switching valve 5 can be a pneumatic valve or an electric valve, and this embodiment does not limit it. It should be noted that the switching valve 5 can also function as the first valve mentioned above; therefore, it is sufficient to provide either the first valve or the switching valve 5.

[0091] Counter 6 is used to measure the number of spherical elements 8. For example, counter 6 can be a photoelectric counter or other types of counter. Counter 6 can measure the number of spherical elements 8 entering the temporary storage tube 1, thereby determining whether the temporary storage tube 1 is full.

[0092] After a temporary storage tube 1 is filled with spherical elements 8, the first conversion component 22 of the first conveying conversion device 2 can move to allow other temporary storage tubes 1 to temporarily store spherical elements 8. When each temporary storage tube 1 is filled with spherical elements 8, the switch valve 5 can be closed to prevent spherical elements 8 from entering any temporary storage tube 1.

[0093] like Figure 3 As shown, in some embodiments, the spherical element storage device further includes an output pipe 7, which is connected to the second outlet 312 for conveying the temporarily stored spherical element 8 to the next process. To simplify the structure of the output pipe 7, the output pipe 7 can be a straight pipe, and the axis of the output pipe 7 is arranged parallel to or inclined to the direction of gravity.

[0094] Based on the spherical element storage device provided in the above embodiments, this disclosure also provides a pebble bed reactor, which includes the spherical element storage device described in the above embodiments.

[0095] Since the aforementioned spherical element storage device has the aforementioned technical effects, and the aforementioned pebble bed reactor includes the aforementioned spherical element storage device, the aforementioned pebble bed reactor also has the corresponding technical effects, which will not be elaborated here.

[0096] The pebble bed reactor described above can be a pebble bed high-temperature gas-cooled reactor or other types, and this disclosure does not limit this type.

[0097] The above description of the disclosed embodiments enables those skilled in the art to make or use this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A temporary storage device for spherical components, characterized in that, include: At least one temporary storage tube (1) has a temporary storage channel (13) for temporarily storing a spherical element (8), the temporary storage inlet (131) and the temporary storage outlet (132) of the temporary storage channel (13) are arranged to be distributed along the direction of gravity, and the temporary storage channel (13) is configured to allow the spherical element (8) to pass through in a single row under the action of gravity.

2. The spherical element temporary storage device according to claim 1, characterized in that, The minimum width of the temporary storage channel (13) is greater than the diameter of the spherical element (8), and the maximum width of the temporary storage channel (13) is less than twice the diameter of the spherical element (8).

3. The spherical element temporary storage device according to claim 1, characterized in that, At least one of the temporary storage tubes (1) is a straight tube (1a), and the axial direction of the temporary storage tube (1) is parallel to the direction of gravity, or the axial direction of the temporary storage tube (1) is inclined to the direction of gravity. Alternatively, at least one of the temporary storage pipes (1) includes at least two straight pipe sections (11) and at least one bend pipe section (12), with two adjacent straight pipe sections (11) connected through the bend pipe section (12), and the two adjacent straight pipe sections (11) are axially inclined. Alternatively, at least one of the temporary storage tubes (1) is a spiral tube.

4. The spherical element temporary storage device according to claim 3, characterized in that, The temporary storage tube (1) is a metal tube; And / or, the length of the temporary storage channel (13) is not less than 0.5m.

5. The spherical element temporary storage device according to any one of claims 1-4, characterized in that, There are at least two temporary storage tubes (1); The spherical element temporary storage device further includes a first conveying and conversion device (2), which includes a first housing (21) and a first conversion component (22). The first housing (21) is provided with a first inlet (211) and at least two first outlets (212). The first conversion component (22) is provided with a first conversion channel (221). One end of the first conversion channel (221) is connected to the first inlet (211). The first conversion component (22) is movably disposed in the first housing (21) to switch the other end of the first conversion channel (221) to be connected to different first outlets (212). The temporary storage inlet (131) and the first outlet (212) are connected.

6. The spherical element temporary storage device according to claim 5, characterized in that, The first inlet (211) and the first outlet (212) are both configured to allow a single spherical element (8) to pass through, and the first conversion channel (221) is configured to allow the spherical elements (8) to pass through in a single row under the action of gravity; And / or, the first conversion component (22) is rotatably disposed within the first housing (21), and the axis of rotation of the first conversion component (22) is perpendicular to the direction of gravity.

7. The spherical element temporary storage device according to claim 5, characterized in that, The spherical element temporary storage device further includes a second conveying and conversion device (3), which includes a second housing (31) and a second conversion component (32). The second housing (31) is provided with at least two second inlets (311) and a second outlet (312). The second conversion component (32) is provided with a second conversion channel (321). One end of the second conversion channel (321) is connected to the second outlet (312). The second conversion component (32) is movably disposed in the second housing (31) to switch the other end of the second conversion channel (321) to be connected to different second inlets (311). The temporary storage outlet (132) and the second inlet (311) are connected.

8. The spherical element temporary storage device according to claim 7, characterized in that, The second inlet (311) and the second outlet (312) are both configured to allow a single spherical element (8) to pass through, and the second conversion channel (321) is configured to allow the spherical elements (8) to pass through in a single file under the influence of gravity; And / or, the second conversion component (32) is rotatably disposed within the second housing (31), and the axis of rotation of the second conversion component (32) is perpendicular to the direction of gravity.

9. The spherical element temporary storage device according to claim 5, characterized in that, The spherical element temporary storage device further includes an input tube (4), which is connected to the first inlet (211), and the input tube (4) is provided with at least one of a switching valve (5) and a counter (6); The switching valve (5) controls the on / off state of the input pipe (4), and the counter (6) is used to measure the number of the spherical elements (8).

10. A pebble bed reactor, characterized in that, Includes a spherical element temporary storage device as described in any one of claims 1-9.

Images