Conveying belt type fuel ball conveying system and method for high-temperature gas cooled reactor

Abstract

The invention discloses a conveyor belt type fuel ball transmission system and method for a high-temperature gas cooled reactor, a bottom outlet of a reactor core is communicated with an inlet of a broken ball separation device, a broken ball outlet of the broken ball separation device is communicated with a broken ball storage tank, a complete fuel ball outlet of the broken ball separation device is communicated with an inlet of a burn-up measurement device, and the burn-up measurement device is communicated with an outlet of the reactor core. A spent fuel outlet of the burnup measuring device is communicated with the spent fuel storage tank, a recycled fuel outlet of the burnup measuring device is communicated with an inlet of the discharging pipe, a plurality of conveying belts are arranged on the conveying pipeline, and when any conveying belt moves to the lowest position of the conveying pipeline, an outlet of the discharging pipe directly faces the conveying belt; and when any conveying belt moves to the top of the conveying pipeline, the conveying belt is over against the charging opening of the reactor core, and the system is high in operation stability.

Description

Technical Field

[0001] The present invention belongs to the field of nuclear reactor fuel handling and specifically relates to a conveyor - type fuel sphere transfer system and method for a high - temperature gas - cooled reactor. Background Art

[0002] The fuel handling system of a high - temperature gas - cooled reactor is the general term for equipment such as new fuel spheres, recycled fuel spheres, and graphite elements in the core of a pebble - bed high - temperature gas - cooled reactor for loading, unloading, transportation, and off - site storage. It is responsible for automatically performing operations such as continuous refueling without shutting down the reactor for new fuel spheres, recycled fuel spheres, and graphite spheres, burnup measurement, sorting and transportation, as well as off - site storage of new and spent fuel spheres.

[0003] The function of the fuel handling system of a high - temperature gas - cooled reactor is to unload fuel spheres from the bottom of the reactor using an integrated unloading device. The fuel spheres flow by gravity in the fuel handling system pipeline. After passing through crushed - sphere separation, burnup measurement, and a choke, at the lowest point of the system, helium gas flow generated by a helium compressor is used to lift reusable or newly added fuel spheres in the fuel system pipeline to the top of the reactor and drop them into the core, thereby achieving continuous refueling without shutting down the high - temperature reactor.

[0004] However, since the choke of the fuel handling system is a helium - pressure isolation device, a good sealing environment easily causes graphite dust and debris to accumulate here under the influence of gravity and cannot be purged. This causes fuel spheres to become blocked downstream in the fuel handling pipeline, affecting the normal operation of the fuel handling system. In addition, the fuel spheres at the lowest point of the system need to be transported to the top of the reactor by high - pressure helium gas generated by a helium compressor and reinstalled into the reactor. The frequent operation of the helium compressor also increases the off - site power consumption of the high - temperature gas - cooled reactor to a certain extent. Therefore, how to improve the operating stability of the fuel handling system, improve the safety and economy of the reactor has become an important issue in the optimization of high - temperature gas - cooled reactors. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above - mentioned drawbacks of the prior art and provide a conveyor - type fuel sphere transfer system and method for a high - temperature gas - cooled reactor, which has high operating stability.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A conveyor - type fuel sphere transfer system for a high - temperature gas - cooled reactor, comprising a core, a crushed - sphere separation device, a crushed - sphere storage tank, a burnup measurement device, a spent - fuel storage tank, a discharge pipe, and a transfer pipeline; The bottom outlet of the core is connected to the inlet of the broken ball separation device. The broken ball outlet of the broken ball separation device is connected to the broken ball storage tank. The intact fuel ball outlet of the broken ball separation device is connected to the inlet of the burnup measurement device. The spent fuel outlet of the burnup measurement device is connected to the spent fuel storage tank. The recycled fuel outlet of the burnup measurement device is connected to the inlet of the discharge pipe. A number of conveyor belts are provided on the transfer pipeline. Among them, when any conveyor belt moves to the lowest position of the transfer pipeline, the outlet of the discharge pipe is directly opposite to this conveyor belt; when any conveyor belt moves to the top of the transfer pipeline, this conveyor belt is directly opposite to the loading port of the core.

[0007] A further improvement of the present invention lies in that the bottom outlet of the core is connected to the inlet of the broken ball separation device through a discharge device.

[0008] A further improvement of the present invention lies in that the broken ball outlet of the broken ball separation device is connected to the broken ball storage tank through a broken ball branch pipeline.

[0009] A further improvement of the present invention lies in that the spent fuel outlet of the burnup measurement device is connected to the spent fuel storage tank through a spent fuel branch pipeline.

[0010] A further improvement of the present invention lies in that counters are provided in the pipeline between the core and the discharge device, in the pipeline between the discharge device and the broken ball separation device, in the pipeline between the broken ball separation device and the burnup measurement device, in the discharge pipeline, in the spent fuel branch pipeline, in the broken ball branch pipeline, and in the conveyor belts.

[0011] A further improvement of the present invention lies in that the transfer pipeline includes an empty conveyor belt descending transfer pipeline and an ascending transfer pipeline. Among them, the empty conveyor belt descending transfer pipeline and the ascending transfer pipeline form an annular structure.

[0012] A further improvement of the present invention lies in that the conveyor belt on the empty conveyor belt descending transfer pipeline is an empty fuel conveyor belt.

[0013] A further improvement of the present invention lies in that the conveyor belt on the ascending transfer pipeline is a fully loaded fuel conveyor belt, and a gravity sensor is installed in the conveyor belt.

[0014] A further improvement of the present invention lies in that a buffer is provided at the inlet of the broken ball separation device.

[0015] A conveyor belt type fuel ball transmission method for a high-temperature gas-cooled reactor, which is based on the above-mentioned conveyor belt type fuel ball transmission system for a high-temperature gas-cooled reactor, includes: Spherical fuel elements undergo continuous nuclear reaction burnup in the reactor core and, under the action of gravity, continuously move in a spherical flow from the upper part of the reactor core to the bottom of the reactor core. When the spherical fuel elements reach the bottom of the reactor core, they are discharged and then enter the broken sphere separation device through the gravity drop section for separation. Among them, the separated broken fuel spheres enter the broken sphere storage tank, and the separated intact fuel spheres enter the burnup measurement device for fuel measurement. The spent fuel that reaches the target burnup depth output by the burnup measurement device enters the spent fuel storage tank. The spherical fuel elements that do not reach the burnup depth are sent into the conveyor belt at the lowest position of the transfer pipeline through the discharge pipe. The transfer pipeline drives each conveyor belt to move. When any conveyor belt reaches the top of the transfer pipeline, the conveyor belt flips, and the fuel spheres on the conveyor belt are poured into the reactor core one by one through the loading port.

[0016] Compared with the prior art, the present invention has at least the following beneficial technical effects: In the conveyor belt type fuel sphere transmission system and method for a high-temperature gas-cooled reactor described in the present invention, during specific operations, a conveyor belt type fuel transmission system is adopted to reload the fuel spheres unburned discharged from the reactor core into the reactor core by mechanical transmission, simplifying the helium compressor in the original design system, avoiding the frequent startup of the helium compressor, improving the operation stability of the fuel loading and unloading system, enhancing the safety and economy of the reactor, reducing the plant electricity consumption of the high-temperature reactor. The mechanical transmission of the conveyor belt type reduces the force on the fuel spheres compared with the method of blowing and lifting the spheres by the helium compressor, making the fuel spheres less likely to be damaged, and at the same time reducing the operation and maintenance costs of the fuel loading and unloading system. Description of the Drawings

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of a conveyor belt type fuel sphere transmission system for a high-temperature gas-cooled reactor of the present invention.

[0019] Figure 2 It is a flowchart of a conveyor belt type fuel sphere transmission method for a high-temperature gas-cooled reactor of the present invention.

[0020] Explanation of the Reference Numerals: 1 is a spherical fuel element, 2 is a reactor core, 3 is an empty fuel conveyor belt, 4 is a downward conveyor pipe for the empty conveyor belt, 5 is a broken ball branch pipeline, 6 is a broken fuel ball, 7 is a broken ball storage tank, 8 is spent fuel, 9 is a spent fuel storage tank, 10 is a spent fuel branch pipeline, 11 is a discharging device, 12 is a broken ball separation device, 13 is a burnup measurement device, 14 is a counter, 15 is an upward conveyor pipe, 16 is a full fuel conveyor belt. Detailed implementation manners

[0021] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0024] In the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0026] It should also be understood that the terms used in the description of the present invention are merely for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the description of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0027] It should be further understood that the term "and / or" used in the description of the present invention and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0028] Schematic diagrams of various structures according to the disclosed embodiments of the present invention are shown in the drawings. These drawings are not drawn to scale, in which for the purpose of clear expression, some details are enlarged and some details may be omitted. The shapes of various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary, and in practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art can design regions / layers with different shapes, sizes and relative positions according to actual requirements.

[0029] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0030] Embodiment 1 Reference Figure 1, a conveyor - belt - type fuel ball transmission system for a high - temperature gas - cooled reactor provided by the present invention includes a reactor core 2, a broken - ball separation device 12, a broken - ball storage tank 7, a burnup measurement device 13, a spent - fuel storage tank 9, a discharge pipe, and a transfer pipeline; the bottom outlet of the reactor core 2 is connected to the inlet of the broken - ball separation device 12 through a discharge device 11, the broken - ball outlet of the broken - ball separation device 12 is connected to the broken - ball storage tank 7 through a broken - ball branch pipeline 5, the intact fuel - ball outlet of the broken - ball separation device 12 is connected to the inlet of the burnup measurement device 13, the spent - fuel outlet of the burnup measurement device 13 is connected to the spent - fuel storage tank 9 through a spent - fuel branch pipeline 10, the recovered - fuel outlet of the burnup measurement device 13 is connected to the inlet of the discharge pipe, and a plurality of conveyor belts are arranged on the transfer pipeline. Among them, when any conveyor belt moves to the lowest position of the transfer pipeline, the outlet of the discharge pipe is directly opposite to this conveyor belt; when any conveyor belt moves to the top of the transfer pipeline, this conveyor belt is directly opposite to the loading port of the reactor core 2.

[0031] In this embodiment, the transfer pipeline includes an empty - conveyor - belt descending transfer pipeline 4 and an ascending transfer pipeline 15. Among them, the empty - conveyor - belt descending transfer pipeline 4 and the ascending transfer pipeline 15 form an annular structure, and the conveyor belt on the empty - conveyor - belt descending transfer pipeline 4 is an empty - fuel conveyor belt 3, and the conveyor belt on the ascending transfer pipeline 15 is a full - loaded fuel conveyor belt 16, and the conveyor belt is equipped with a gravity sensor. A gravity sensor, also known as a gravity inductor, is a new type of sensor technology. It uses an elastic sensitive element to make a cantilever - type displacement device, which cooperates with a storage spring to complete the conversion from gravity change to an electrical signal. Its working principle is based on the piezoelectric effect, that is, when an external force acts on a non - centrosymmetric heteropolar crystal, in addition to deforming the crystal, it also changes the polarization state of the crystal and establishes an electric field inside the crystal. The gravity sensor utilizes the crystal deformation characteristics caused by the acceleration inside it, measures the deformation amount and converts it into a voltage output through a related circuit, so as to realize the monitoring of the magnitude and direction of gravity.

[0032] In this embodiment, the bottom outlet of the reactor core 2 is connected to the inlet of the broken - ball separation device 12 through a discharge device 11.

[0033] In this embodiment, the broken - ball outlet of the broken - ball separation device 12 is connected to the broken - ball storage tank 7 through a broken - ball branch pipeline 5.

[0034] In this embodiment, the spent fuel outlet of the burnup measurement device 13 is connected to the spent fuel storage tank 9 through the spent fuel branch pipeline 10. Counters 14 are provided in the pipeline between the core 2 and the fuel discharging device 11, in the pipeline between the fuel discharging device 11 and the broken ball separation device 12, in the pipeline between the broken ball separation device 12 and the burnup measurement device 13, in the fuel discharging pipeline, in the spent fuel branch pipeline 10, in the broken ball branch pipeline 5, and in the conveyor belt. A counter is a device that can record or display the number of events or operations. The working principle of a counter is usually based on some form of accumulator or register. When a specific event is detected, the counter increments its value by 1 (or other specified value). This process can continue until the counter reaches its maximum counting range or is reset.

[0035] Embodiment 2 Reference Figure 2 , a conveyor belt type fuel ball transmission method for a high-temperature gas-cooled reactor provided by the present invention includes: The spherical fuel element 1 undergoes a nuclear reaction in the core 2 and the burnup depth continuously deepens, and under the action of gravity, it continuously moves in a ball flow from above the core 2 to the bottom of the core 2. When the spherical fuel element 1 reaches the bottom of the core 2, it is discharged, and then enters the broken ball separation device 12 through the gravity drop section for separation. Among them, the separated broken fuel balls 6 enter the broken ball storage tank 7, and the separated intact fuel balls enter the burnup measurement device 13 for fuel measurement. The spent fuel 8 that reaches the target burnup depth output by the burnup measurement device 13 enters the spent fuel storage tank 9, and the spherical fuel element 1 that does not reach the burnup depth is sent into the conveyor belt at the lowest position of the transfer pipeline through the discharge pipe. The transfer pipeline drives each conveyor belt to move. When any conveyor belt reaches the top of the transfer pipeline, the conveyor belt flips, and the fuel balls on the conveyor belt are poured into the core 2 one by one through the loading port.

[0036] Embodiment 3 Reference Figure 2 , a conveyor belt type fuel ball transmission method for a high-temperature gas-cooled reactor provided by the present invention includes: The spherical fuel element 1 undergoes a continuous deepening of the burnup during the nuclear reaction in the core 2 and, under the action of gravity, continuously moves in a spherical flow from above the core 2 towards the bottom of the core 2. When the spherical fuel element 1 reaches the bottom of the core 2, it is discharged through the discharging device 11 and then enters the broken sphere separation device 12 through the gravity drop section for separation. Among them, the separated broken fuel spheres 6 enter the broken sphere storage tank 7 through the broken sphere branch pipeline 5, and the separated intact fuel spheres enter the burnup measurement device 13 for fuel measurement. Among them, a buffer is provided at the inlet of the broken sphere separation device 12 to protect the geometric integrity of the spherical fuel element 1. The spent fuel 8 that reaches the target burnup depth output by the burnup measurement device 13 enters the spent fuel storage tank 9 through the spent fuel branch pipeline 10, and the spherical fuel element 1 that has not reached the burnup depth is sent into the conveyor belt at the lowest position of the transfer pipeline through the discharging pipe. Among them, gravity sensors or counters 14 are provided in each conveyor belt. When the reading of the gravity sensor or counter 14 reaches the target value, the discharging valve on the discharging pipe is closed, and the transfer pipeline drives each conveyor belt to move. When any conveyor belt reaches the top of the transfer pipeline, the conveyor belt flips, and the fuel spheres in the conveyor belt are poured into the core 2 one by one through the loading port.

[0037] In this embodiment, the conveyor belt has a certain gap, and graphite dust and debris are discharged into the debris collection device through this gap to prevent the dust and debris from being repeatedly loaded into the core 2 and reduce the reactivity.

[0038] In this embodiment, counters 14 are provided in the pipeline between the core 2 and the discharging device 11, in the pipeline between the discharging device 11 and the broken sphere separation device 12, in the pipeline between the broken sphere separation device 12 and the burnup measurement device 13, in the discharging pipeline, in the spent fuel branch pipeline 10, and in the broken sphere branch pipeline 5. Among them, when a certain counter 14 has a misrecording or a missed recording, the counter 14 will be manually corrected based on the principle of the conservation of the total number of fuel spheres.

[0039] In this embodiment, the conveyor belt is equipped with a gravity sensor, which can transmit the number of falling spheres to the control system and cooperate with the counter 14 in the discharging pipe to realize the verification of the number of spherical fuel elements 1.

[0040] In this embodiment, the present invention is in a closed helium atmosphere, which avoids the complex process of atmosphere switching required for the fuel spheres and can limit the external emission of radioactive gases.

[0041] In this embodiment, the pipes between the core 2 and the discharging device 11, the pipes between the discharging device 11 and the broken ball separation device 12, the pipes between the broken ball separation device 12 and the burnup measurement device 13, and the discharging pipes are all small-angle inclined pipes, so as to reduce the falling speed of the spherical fuel and avoid the breakage of the fuel balls during the falling process. Among them, the design of the small-angle inclined pipes effectively slows down the falling speed of the spherical fuel in the pipes. Since the fuel balls slide down along the pipes under the action of gravity, the smaller the inclination angle, the smaller the component force of the fuel balls along the pipe direction, so the sliding speed slows down accordingly. This design helps to reduce the impact and friction of the fuel balls during the falling process, thereby reducing the risk of breakage.

[0042] In summary, the present invention is applied to the process of reloading fuel balls that have not reached the burnup. Through the design of the entire closed fuel handling system, the complex atmosphere switching process during the entire fuel handling process is avoided, the choke valve of the original system is simplified, and the risk of ball jamming in the system is reduced; through the method of conveying the spherical fuel elements 1 in the conveying pipes by the conveyor belt, the process of loading the spherical fuel elements is realized, the process of conveying the fuel balls by the helium compressor is simplified, and the plant electricity consumption of the high-temperature reactor is reduced; through the porous conveyor belt, the graphite dust and debris are discharged into the debris collection device through the gaps, avoiding the repeated loading of the dust and debris into the core 2 and reducing the reactivity.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0044] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention fall within the protection scope of the claims of the present invention.

Claims

1. A conveyor belt type fuel sphere transmission system for a high-temperature gas-cooled reactor, characterized in that, It includes a core (2), a broken ball separation device (12), a broken ball storage tank (7), a burnup measurement device (13), a spent fuel storage tank (9), a discharge pipe and a transfer pipeline; The bottom outlet of the core (2) is communicated with the inlet of the broken ball separation device (12), the broken ball outlet of the broken ball separation device (12) is communicated with the broken ball storage tank (7), the intact fuel ball outlet of the broken ball separation device (12) is communicated with the inlet of the burnup measurement device (13), the spent fuel outlet of the burnup measurement device (13) is communicated with the spent fuel storage tank (9), the recycled fuel outlet of the burnup measurement device (13) is communicated with the inlet of the discharge pipe, and a plurality of conveyor belts are arranged on the transfer pipeline. Among them, when any conveyor belt moves to the lowest position of the transfer pipeline, the outlet of the discharge pipe is directly opposite to this conveyor belt; when any conveyor belt moves to the top of the transfer pipeline, this conveyor belt is directly opposite to the loading port of the core (2).

2. The conveyor belt type fuel sphere transmission system for high temperature gas cooled reactor according to claim 1, characterized in that, The bottom outlet of the core (2) is communicated with the inlet of the broken ball separation device (12) through a discharge device (11).

3. The belt - type fuel sphere transmission system for high - temperature gas - cooled reactors according to claim 2, wherein, The broken ball outlet of the broken ball separation device (12) is communicated with the broken ball storage tank (7) through a broken ball branch pipeline (5).

4. The belt - type fuel sphere transfer system for high - temperature gas - cooled reactors according to claim 3, wherein, The spent fuel outlet of the burnup measurement device (13) is communicated with the spent fuel storage tank (9) through a spent fuel branch pipeline (10).

5. The conveyor belt type fuel sphere transfer system for high-temperature gas-cooled reactors according to claim 4, characterized in that, Counters (14) are arranged in the pipeline between the core (2) and the discharge device (11), in the pipeline between the discharge device (11) and the broken ball separation device (12), in the pipeline between the broken ball separation device (12) and the burnup measurement device (13), in the discharge pipeline, in the spent fuel branch pipeline (10), in the broken ball branch pipeline (5), and in the conveyor belts.

6. The conveyor belt type fuel sphere transfer system for high-temperature gas-cooled reactor according to claim 1, wherein The transfer pipeline includes an empty conveyor belt descending transfer pipeline (4) and an ascending transfer pipeline (15), where the empty conveyor belt descending transfer pipeline (4) and the ascending transfer pipeline (15) form an annular structure.

7. The belt-type fuel sphere transfer system for a high-temperature gas-cooled reactor according to claim 6, wherein The conveyor belt on the empty conveyor belt descending transfer pipeline (4) is an empty fuel conveyor belt (3).

8. The belt - type fuel sphere transmission system for high - temperature gas - cooled reactors according to claim 6, characterized in that, The conveyor belt on the ascending transfer pipeline (15) is a fully loaded fuel conveyor belt (16), and a gravity sensor is installed in the conveyor belt.

9. The conveyor belt type fuel sphere transmission system for high-temperature gas-cooled reactor according to claim 1, wherein A buffer is arranged at the inlet of the broken ball separation device (12).

10. A conveyor - belt - type fuel sphere transfer method for a high - temperature gas - cooled reactor, characterized in that, This method is based on the conveyor belt type fuel ball transmission system for high-temperature gas-cooled reactors described in any one of claims 1 to 9, and includes: The spherical fuel elements (1) undergo continuous deep burnup in the nuclear reaction in the core (2), and under the action of gravity, they continuously move in a spherical flow from above the core (2) to the bottom of the core (2). When the spherical fuel elements (1) reach the bottom of the core (2), they are discharged, and then enter the broken ball separation device (12) through the gravity drop section for separation. Among them, the separated broken fuel balls (6) enter the broken ball storage tank (7), and the separated intact fuel balls enter the burnup measurement device (13) for fuel measurement. The spent fuel (8) that reaches the target burnup depth output by the burnup measurement device (13) enters the spent fuel storage tank (9). The spherical fuel elements (1) that do not reach the burnup depth are sent into the conveyor belt at the lowest position of the transfer pipeline through the discharge pipe. The transfer pipeline drives each conveyor belt to move. When any conveyor belt reaches the top of the transfer pipeline, the conveyor belt flips, and the fuel balls in the conveyor belt are poured into the core (2) one by one through the loading port.

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