Support system, support device and reactor refueling method
阅读说明:本技术 支撑系统、支撑装置和反应堆换料方法 (Support system, support device and reactor refueling method ) 是由 郭志家 周寅鹏 张金山 刘兴民 柯国土 衣大勇 彭朝晖 范月容 姚成志 石辰蕾 于 2020-06-23 设计创作,主要内容包括:一种支撑系统,包括多个支撑组,每个所述支撑组包括多个支撑装置,其中,所述支撑装置包括:支撑臂、连接件和固定件,所述固定件设置在所述墙体上;所述支撑臂的第一端通过所述连接件可旋转地连接至所述固定件,使所述支撑臂具有:第二端靠近所述反应堆本体的第一位置,以及第二端靠近所述墙体的第二位置,所述支撑臂能够在所述第一位置与所述第二位置间移动,并且能够保持在所述第一位置或所述第二位置。根据本发明实施例的支撑系统能够在不完全拆卸支撑装置的情况下断开对反应堆本体的支撑,为反应堆换料等提供操作空间。(A support system comprising a plurality of support groups, each support group comprising a plurality of support devices, wherein the support devices comprise: the supporting arm, the connecting piece and the fixing piece are arranged on the wall body; the first end of the support arm is rotatably connected to the mount by the connector, such that the support arm has: a first position with a second end adjacent the reactor body and a second position with a second end adjacent the wall, the support arm being movable between the first and second positions and being retainable in either the first or second positions. The support system provided by the embodiment of the invention can disconnect the support of the reactor body under the condition of not completely disassembling the support device, and provides an operation space for reactor refueling and the like.)
1. A support system provided between a reactor body (100) and a wall (200) built along a circumferential direction of the reactor body (100) for supporting the reactor body (100), comprising a plurality of support groups (300) provided at the wall (200) along the circumferential direction of the reactor body (100), each support group (300) comprising a plurality of support devices (10) provided along an axial direction of the reactor body (100), wherein each support device (10) comprises:
a supporting arm (11), a connecting piece (12) and a fixing piece (13),
the fixing piece (13) is arranged on the wall body (200);
the first end of the support arm (11) is rotatably connected to the mount (13) by means of the connection (12), so that the support arm (11) has:
a second end near a first position of the reactor body (100), an
A second end proximate to a second location of the wall (200),
the support arm (11) is movable between the first position and the second position and can be held in either the first position or the second position.
2. The support system of claim 1, wherein the second end of the support arm (11) is arranged to be positioned
Is connectable to the reactor body (100) when the support arm (11) is in the first position and cooperates with a stop formation formed on the reactor body (100) to limit movement of the support arm (11) in at least part of the direction.
3. The support system according to claim 1, wherein the fixing member (13) is provided to comprise:
an embedded part (131) arranged in the wall body (200);
a fixed arm (132), the fixed arm (132) having a first end connected to the embedment (131) and a second end connected to the attachment member (12),
the fixed arm (132) is arranged to be perpendicular to the plane of the embedded part (131).
4. The support system of claim 3, wherein the support arm (11) is substantially in line with the fixed arm (132) when in the first position.
5. The support system according to claim 1, wherein the connection (12) is arranged to enable the support arm (11) to move in a vertical plane.
6. The support system according to claim 1, further comprising a drive device (400) for moving the support arm (11) of the support device (10), and
the support arm (11) can be held in the second position.
7. The support system according to claim 6, wherein a plurality of support devices (10) in each support group (300) are provided sharing the drive device (400).
8. The support system of claim 7, wherein the drive means (400) comprises:
a plurality of pull cords (410) respectively connected to the second ends of the support arms (11);
a winding mechanism (420) arranged to wind up or pay out the traction rope (410) to move the support arm (11), and
the pull cord (410) can be secured to maintain the support arm (11) in the second position.
9. The support system of claim 8, wherein the hoisting mechanism (410) is arranged at the wall (200) and axially uppermost of the support groups (300) in which it is arranged.
10. The support system of claim 8, wherein the drive arrangement (400) further comprises:
at least one first stopper (430) for preventing the pull rope (410) from falling off;
at least one second stop (440) to prevent the pull-cord (410) from tangling.
11. A reactor refueling method comprising:
releasing the connection between the support arm (11) and the reactor body (100), and moving the support arm (11) to the second position and keeping the second position;
dismantling the reactor body (100);
changing materials;
assembling the reactor body (100);
-moving the support arm (11) to a first position and restoring the connection of the support arm (11) to the reactor body (100).
12. The method of reloading as in claim 11,
when the supporting arm (11) is moved to the second position, the supporting arm (11) which is positioned above the reactor body (100) in the axial direction is moved;
when the supporting arm (11) is moved to the first position, the supporting arm (11) which is relatively positioned below the reactor body (100) in the axial direction is moved first.
13. A support device (10) provided between a reactor body (100) and a wall (200) built along a circumferential direction of the reactor body (100), the support device (10) comprising:
a support arm (11), a connecting piece (12) and a fixing piece (13), wherein
The support arm (11) is arranged to support the reactor body (100);
the connecting piece (12) rotatably connects the supporting arm (11) to the fixing piece (13) so that the reactor body (100) can be separated from the supporting of the supporting arm (11);
the fixing element (13) is arranged as a fixing element (13) according to claim 3, and
the support arm (11) is substantially in line with the fixed arm (132) when supporting the reactor body (100).
14. The support device (10) of claim 13, wherein the support arm (11) is connectable to the reactor body (100) and cooperates with a stop formation formed on the reactor body (100) to limit movement of the support arm (11) in at least part of the direction.
15. The support device (10) according to claim 13, wherein the connection (12) is arranged to enable movement of the support arm (11) in a vertical plane.
Technical Field
The invention belongs to the technical field of nuclear reactors, and particularly relates to a support system and a support device for a nuclear reactor and a refueling method for the reactor.
Background
In order to guarantee the reliability and safety during the operation of the reactor, it is necessary to provide the body of the reactor, for example: the containment, the containment top cover, the core barrel and the like are used for seismic support, and particularly for a reactor which is a pool reactor and has a large length-diameter ratio and is located in deep water, not only support in all circumferential directions but also support in all axial heights are provided, which means that a support system needs to comprise more support devices.
Disclosure of Invention
In view of the above, the present invention has been made to provide a support system and a support device for a reactor that overcome or at least partially solve the above problems.
According to an aspect of the present invention, there is provided a support system provided between a reactor body and a wall built along a circumferential direction of the reactor body, for supporting the reactor body, including a plurality of support groups provided at the wall along the circumferential direction of the reactor body, each support group including a plurality of support devices provided along an axial direction of the reactor body, wherein each support device includes: the supporting arm, the connecting piece and the fixing piece are arranged on the wall body; the first end of the support arm is rotatably connected to the mount by the connector, such that the support arm has: a first position with a second end adjacent the reactor body and a second position with a second end adjacent the wall, the support arm being movable between the first and second positions and being retainable in either the first or second positions.
Optionally, the second end of the support arm is arranged to be attachable to the reactor body when the support arm is in the first position and to cooperate with a stop formation formed on the reactor body to limit movement of the support arm in at least part of the direction
Optionally, the fixing member is configured to include: the embedded part is arranged in the wall body; and the first end of the fixed arm is connected to the embedded part, the second end of the fixed arm is connected to the connecting piece, and the fixed arm is arranged to be perpendicular to the plane where the embedded part is located.
Optionally, the support arm is substantially in line with the stationary arm when in the first position.
Optionally, the connector is arranged to enable the support arm to move in a vertical plane.
Optionally, the support system further comprises a drive means for moving the support arm of the support means and capable of holding the support arm in the second position.
Optionally, a plurality of support means in each support group are arranged to share the drive means.
Optionally, the drive device comprises: a plurality of pull cords respectively connected to the second ends of the support arms; a winding mechanism configured to wind or unwind the pull line to move the support arm and to secure the pull line to maintain the support arm in the second position.
Optionally, the hoisting mechanism is disposed on the wall body and at the uppermost position in the axial direction of the support group on which the hoisting mechanism is disposed.
Optionally, the driving device further comprises: the first limiting piece prevents the traction rope from falling off; at least one second stop prevents the pull cord from tangling.
According to another aspect of the present invention, there is also provided a reactor refueling method, comprising: the support arm is disconnected with the reactor body, and the support arm is moved to a second position and is kept; dismantling the reactor body; changing materials; assembling the reactor body; moving the support arm to a first position and restoring the connection of the support arm to the reactor body.
Optionally, when the support arm is moved to the second position, the support arm located relatively above the reactor body in the axial direction is moved first; when the supporting arm is moved to the first position, the supporting arm which is positioned at the lower part of the reactor body in the axial direction relatively is moved.
According to another aspect of the present invention, there is also provided a support device provided between a reactor body and a wall built along a circumferential direction of the reactor body, the support device including: a support arm, a connector and a mount, wherein the support arm is configured to support the reactor body; the connector rotatably connects the support arm to the mount such that the reactor body can be disconnected from the support of the support arm; the fixture is configured as described above, and the support arm is substantially aligned with the stationary arm when supporting the reactor body.
Optionally, the support arm is connectable to the reactor body and cooperates with a stop formation formed on the reactor body to limit movement of the support arm in at least part of the direction.
Optionally, the connector is arranged to enable movement of the support arm in a vertical plane.
According to the support system and the support device provided by the embodiment of the invention, the support for the reactor body can be disconnected under the condition that the support device is not completely detached, and an operation space is provided for reactor refueling and the like, so that the operation of refueling and the like of the reactor is more convenient, and when the support system and the support device are applied to a pool type reactor, the support for the reactor body can be directly disconnected under water, and the operation of emptying pool water is avoided. According to the material changing method provided by the embodiment of the invention, the steps of disassembling and re-assembling the supporting system are omitted, and the method is simpler and more convenient.
Drawings
FIG. 1 is a schematic view of a support system with a support arm in a first position according to an embodiment of the present invention;
FIG. 2 is a schematic view of a support system with a support arm in a second position according to an embodiment of the present invention;
FIG. 3 is a schematic view of a connection location of a support arm and a reactor body according to an embodiment of the invention;
FIG. 4 is a schematic view of a support device with a support arm in a first position according to an embodiment of the invention;
fig. 5 is a schematic view of the support device with the support arm in the second position according to the embodiment of the invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details.
First, according to an embodiment of the present invention, there is provided a support system, referring to fig. 1 and 2, provided in a
The supporting
In some embodiments, the
Further, in some embodiments, the
In some embodiments, as shown in fig. 4-5, the
Further, in some embodiments, the connecting
In some embodiments, to facilitate the movement of the
In some embodiments, as shown in fig. 1 and 2, the driving device 400 includes a plurality of
In some embodiments, as shown in fig. 1 and fig. 2, the driving device 400 further includes at least one first limiting
The embodiment of the invention also provides a reactor refueling method based on the support system, which specifically comprises the following steps:
s1, contacting the connection of the
S2, the
And S3, changing materials.
S4, assembling the
S5, moving the
The reactor refueling method only needs to move the supporting
Further, in some embodiments, when moving the
There is also provided according to an embodiment of the present invention a
In some embodiments, as mentioned above, the
In some embodiments, the
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention.
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