Reactor guiding and positioning device and positioning method

Abstract

The invention provides a reactor guiding and positioning device and a positioning method, the positioning device comprises at least two positioning units, the at least two positioning units are arranged on two opposite sides of the inner wall of a pool, a guiding space is formed between the at least two positioning units, and the guiding space is matched with a fine positioning guiding column installed on a reactor cylinder to provide guidance for a lifting appliance; one end of each positioning unit is rotationally mounted on the pool wall, the other end of each positioning unit is provided with a guide rod, and a guide space is formed between the corresponding guide rods; the positioning unit has a folding state and a guiding state, and in the folding state, the guiding rod retracts to the side close to the pool wall; and in the guiding state, the guiding rod rotates to the reactor core side and corresponds to the fine positioning guiding column so as to guide the hoisting of the reactor internals. According to the positioning device, during operation of the reactor, the positioning unit can be retracted to the side close to the pool wall, and can rotate to the position, corresponding to the fine positioning guide column, of the guide rod for guiding during material loading and replacing, so that the hoisting operation efficiency and the operation precision are improved.

Description

Technical Field

[0001] The present invention relates to the field of reactor technology, and in particular to a reactor guiding and positioning device and a positioning method. Background Art

[0002] For deep-shell reactors, when the traditional guide column is long, there will be problems such as natural offset and inaccurate positioning.

[0003] Generally, for guide columns with a guide stroke greater than 10m, the nature of the material itself makes it impossible to ensure straightness from the head end to the end in the vertical state, which may cause slippage or collision between the internal components and the pressure vessel during the lifting process.

[0004] Based on this, the inventor of the present application proposes a reactor guidance and positioning device and a positioning method in order to solve the above technical problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defect in the prior art that when the guide column of a deep reactor is too long, the positioning effect is poor, which may cause sliding or collision accidents between the internal components of the reactor and the pressure vessel during the lifting process, and provide a reactor guide positioning device and a positioning method.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention provides a reactor guiding and positioning device, which is characterized in that it includes:

[0008] At least two positioning units, at least two of which are arranged on opposite sides of the inner wall of the water pool, and a guide space is formed between the at least two of which, and the guide space cooperates with a precision positioning guide column installed on the reactor cylinder to provide guidance for the hanger;

[0009] One end of each positioning unit is rotatably mounted on the pool wall, and the other end is provided with a guide rod, and the guide space is formed between the corresponding guide rods; wherein,

[0010] The positioning unit has a folded state and a guiding state. In the folded state, the guide rod is retracted to the side close to the pool wall; in the guiding state, the guide rod is rotated to the core side and corresponds to the precise positioning guide column to guide the lifting of the in-core components.

[0011] According to one embodiment of the present invention, the positioning unit includes a support, a support frame and the guide rod, the support is detachably mounted on the pool wall, one end of the support frame is rotatably engaged with the support, and the end of the support frame facing away from the support is rotatably engaged with the guide rod.

[0012] According to one embodiment of the present invention, the support seat and the support frame are rotatably matched via a rotating shaft;

[0013] The support is provided with a limit plate at one end facing the support frame, and when the positioning unit is in the guiding state, one end surface of the support frame abuts against the limit plate;

[0014] When the positioning unit is in the folded state, the guide rod is rotated toward the pool wall side in a direction away from the limiting plate.

[0015] According to an embodiment of the present invention, when the positioning unit is in the guiding state, the support frame and the limiting plate are connected via a threaded connector or a snap-fit ​​connection.

[0016] According to one embodiment of the present invention, a rotating column is provided between the support frame and the guide rod, and the rotating column is mounted on the support frame and rotatably cooperates with the support frame;

[0017] The guide rod can be detachably mounted on one end of the rotating column.

[0018] According to one embodiment of the present invention, the support frame is provided with an adjustable limiter, and the adjustable limiter includes a base and an abutment rod threadedly connected to the base;

[0019] The abutment rod is used to limit the rotation position of the guide rod.

[0020] According to one embodiment of the present invention, the rotating column is provided with at least one screw rod, and the guide rod is provided with a matching hole adapted to the screw rod;

[0021] The rotating column is connected to the guide rod by inserting the screw rod into the matching hole and using a locking nut.

[0022] According to one embodiment of the present invention, the top and bottom of the guide rod are respectively provided with a first hook and a second hook;

[0023] The first hook is used to connect the hoisting mechanism, and the second hook is used to cooperate with the precise positioning guide column.

[0024] According to an embodiment of the present invention, the guide rod and the precise positioning guide column are coaxially arranged, and the guide rod cooperates with the precise positioning guide column through the second hook.

[0025] According to one embodiment of the present invention, the guide rod and the precision positioning guide column are non-coaxially arranged;

[0026] At least one positioning block is arranged on the peripheral side of the precise positioning guide column, a plumb line is arranged on the second hook, and when the plumb line reaches the positioning block, the positioning unit reaches the guiding state in correspondence with the guiding rod.

[0027] According to an embodiment of the present invention, the axial length of the guide rod is adjustable.

[0028] The present invention also provides a reactor guidance and positioning method, which is characterized in that it is implemented by using the reactor guidance and positioning device as described above, and the positioning method comprises:

[0029] Step 1: When loading or replacing materials, rotate the support frame relative to the support to a first position;

[0030] Step 2: Adjust the guide rod to rotate relative to the support frame to a second position corresponding to the precision positioning guide column and cooperate with the precision positioning guide column to provide guidance for the hoisting of the internal components of the pile.

[0031] The positive and progressive effects of the present invention are:

[0032] The reactor guiding and positioning device of the present invention has a positioning unit that can be retracted to a side close to the pool wall during reactor operation, and can be rotated to a position corresponding to the guide rod and the precision positioning guide column for guidance during loading and replacement of materials, thereby improving the utilization rate of the hoisting space and improving the operating efficiency and operating accuracy of the hoisting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0034] Figure 1 It is a schematic diagram of the arrangement of a positioning unit in a reactor guiding and positioning device according to an embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the arrangement of another embodiment of the positioning unit in the reactor guiding and positioning device of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the positioning unit of the present invention;

[0037] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0038] Figure 5 The present invention is a flow chart of the reactor guidance and positioning method.

[0039] 1. Positioning unit; 11. Guide space; 12. Support; 121. Rotating shaft; 122. Limiting plate; 13. Support frame; 131. Adjustable limiting member; 132. Base; 133. Abutting rod; 14. Guide rod; 141. Matching hole; 142. First hook; 143. Second hook; 144. Plumb rope; 15. Rotating column; 151. Screw;

[0040] 2. Reactor cylinder; 21. Precision positioning guide column; 22. Positioning block;

[0041] 3. Pool. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with specific embodiments and drawings. More details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description herein. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0044] Please refer to Figure 1 and Figure 2 The present invention proposes a reactor guiding and positioning device, comprising at least two positioning units 1, at least two positioning units 1 are arranged on opposite sides of the inner wall of a water pool 3, and a guiding space 11 is formed between the at least two positioning units 1. The guiding space 11 cooperates with a precision positioning guide column 21 installed on the reactor cylinder 2 to provide guidance for the hanger.

[0045] For example, the water pool 3 is a rectangular groove with four side walls, and the number of the positioning units 1 can be two, four, six, etc., which is not limited here.

[0046] The positioning units 1 may be correspondingly arranged on different side walls. One positioning unit 1 may be arranged on each side wall, or a plurality of positioning units 1 may be arranged. The number is not limited.

[0047] When multiple positioning units 1 are provided, they can be arranged at intervals along the width direction of the pool wall, and a guide space 11 is formed in the middle of all the positioning units 1 to provide guidance for the hoisting of the internal components of the pile.

[0048] Specifically, one end of each positioning unit 1 is rotatably mounted on the pool wall, and the other end is provided with a guide rod 14, and a guide space 11 is formed between the corresponding guide rods 14; wherein the positioning unit 1 has a folded state and a guiding state, in which the guide rod 14 is retracted to the side close to the pool wall; in the guiding state, the guide rod 14 is rotated to the core side and corresponds to the precise positioning guide column 21 to guide the lifting of the internal components of the core.

[0049] That is, during the operation of the reactor, the guide rod 14 can be retracted to the side of the pool wall to improve the utilization rate of the lifting space; and during the loading and replacement of materials, the guide rod 14 can be rotated to the core side and cooperate with the precise positioning guide column 21 to provide guidance for the lifting of the internal components of the core.

[0050] The precise positioning guide column 21 is a guide column whose length from the beginning to the end in the vertical direction meets the straightness requirement, and the specific length is not limited here.

[0051] Please refer to Figure 3 The positioning unit 1 includes a support 12, a support frame 13 and a guide rod 14. The support 12 can be detachably mounted on the pool wall. One end of the support frame 13 is rotatably matched with the support 12, and the end of the support frame 13 away from the support 12 is rotatably matched with the guide rod 14.

[0052] Specifically, the support 12 can be installed on the pool wall through a threaded connector, and the installation position on the pool wall can be determined in advance as needed and is not limited here.

[0053] The threaded connector may be a bolt or a screw, which is not limited here.

[0054] The support frame 13 is used to support the guide rod 14 , and one end of the support frame 13 is rotatably matched with the support 12 via a rotating shaft 121 to switch the positioning unit 1 between the folding state and the guiding state.

[0055] Please refer to Figure 1 and Figure 3 The axial direction of the guide rod 14 is consistent with the axial direction of the precision positioning guide column 21. The guide rod 14 is located above the precision positioning guide column 21 and together with the precision positioning guide column 21 guides the lifting of the internal components of the pile.

[0056] Furthermore, a limit plate 122 is provided at one end of the support 12 facing the support frame 13. When the positioning unit 1 is in the guiding state, one end surface of the support frame 13 abuts against the limit plate 122; when the positioning unit 1 is in the folded state, the guide rod 14 rotates to the side of the pool wall in a direction away from the limit plate 122.

[0057] That is, the limiting plate 122 is used to limit the rotation position of the supporting frame 13 .

[0058] Specifically, when the positioning unit 1 is in the guiding state, the support frame 13 and the limiting plate 122 are connected via a threaded connector or a buckle.

[0059] That is, when the positioning unit 1 is in the guiding state, the support frame 13 is connected to the limit plate 122 by a threaded connector, so that the position of the support frame 13 will not move. On this basis, the position of the guide rod 14 can be further fine-tuned to cooperate with the precise positioning guide column 21 for guiding.

[0060] It can be seen that when the positioning unit 1 is in the folded state, the support frame 13 can be connected to the pool wall by means of a threaded connector to prevent the support frame 13 from moving relative to the pool wall.

[0061] Optionally, the connection between the support frame 13 and the pool wall or the limiting plate 122 is not limited to threaded connectors, and can also be connected by snap-fits. For example, a snap-fit ​​protrusion is provided on the limiting plate 122 and the pool wall, and a snap-fit ​​groove matching the snap-fit ​​protrusion is provided on the support frame 13 to meet the limitation of the support frame 13 at different positions.

[0062] Please continue to refer to Figure 3 A rotating column 15 is provided between the support frame 13 and the guide rod 14. The rotating column 15 is installed on the support frame 13 and rotates with the support frame 13. One end of the rotating column 15 can be detachably mounted on the guide rod 14.

[0063] That is, a shaft sleeve is provided on the side of the support frame 13 close to the guide rod 14 , and the rotating column 15 is inserted into the shaft sleeve to rotate with the support frame 13 .

[0064] The rotating column 15 is also provided with a connecting column, and the shaft sleeve is connected to the guide rod 14 via the connecting column.

[0065] The determination of the position of the guide rod 14 is divided into two steps. The first step is to rotate the support frame 13 relative to the pool wall. After reaching the target position, the second step is to rotate the guide rod 14 relative to the support frame 13 along with the rotating column 15, thereby adjusting the guide rod 14 to the final target position.

[0066] Please refer to Figure 3 and Figure 4 An adjustable limiter 131 is provided on the support frame 13 , and the adjustable limiter 131 includes a base 132 and an abutment rod 133 threadedly connected to the base 132 ; the abutment rod 133 is used to limit the rotation position of the guide rod 14 .

[0067] That is, when the guide rod 14 rotates to the target position, the abutment rod 133 is rotated so that one end thereof abuts against the rotation column 15 , thereby preventing the guide rod 14 from further moving.

[0068] In one embodiment, at least one screw 151 is provided on the rotating column 15, and a matching hole 141 adapted to the screw 151 is opened on the guide rod 14; the rotating column 15 is connected to the guide rod 14 by inserting the screw 151 into the matching hole 141 and using a locking nut.

[0069] That is, the screw rod 151 corresponds to the above-mentioned connecting column, and two locking nuts can be set on the screw rod 151. The two locking nuts are arranged on the opposite sides of the guide rod 14. When the screw rod 151 is passed through the matching hole 141, the position of the guide rod 14 is limited by rotating the locking nuts.

[0070] In one embodiment, a first hook 142 and a second hook 143 are respectively provided at the top and the bottom of the guide rod 14 ; the first hook 142 is used to connect the hoisting mechanism, and the second hook 143 is used to cooperate with the precision positioning guide column 21 .

[0071] It can be seen that the hoisting mechanism is a hoisting mechanism for the guide rod 14, which is used to hoist the guide rod 14 to the target position from top to bottom, and then the screw 151 of the rotating column 15 is passed through the matching hole 141 and the guide rod 14 is installed through the locking nut.

[0072] Reference Figure 1 The guide rod 14 is coaxially arranged with the precision positioning guide column 21 , and the guide rod 14 cooperates with the precision positioning guide column 21 through the second hook 143 .

[0073] That is, the lower side of the guide rod 14 is the precision positioning guide post 21 , and the guide rod 14 only needs to be rotated to be directly above the precision positioning guide post 21 to indicate that it has reached the guiding position.

[0074] In some other embodiments, please refer to Figure 2 The guide rod 14 is non-coaxially arranged with the precision positioning guide column 21; at least one positioning block 22 is provided on the circumference of the precision positioning guide column 21, and a plumb rope 144 is provided on the second hook 143. When the plumb rope 144 reaches the positioning block 22, the corresponding positioning unit 1 reaches the guiding state.

[0075] That is, the guide rod 14 can also be arranged on one side of the precision positioning guide column 21, without being coaxial with the precision positioning guide column 21, and the positioning block 22 can be used as a positioning reference. This embodiment can also position and rotate the guide rod 14 when the precision positioning guide column 21 is not installed.

[0076] It can be seen that when the plumb line 144 of the guide rod 14 reaches the position of the positioning block 22, it means that it has reached the guiding state.

[0077] For example, when the required guiding distance is too long, there is a certain distance between the bottom of the guide rod 14 and the precise positioning guide column 21. In this way, the final position of the guide rod 14 can be determined by using a plumb line 144 and a positioning block 22, thereby improving the positioning accuracy.

[0078] Optionally, the axial length of the guide rod 14 is adjustable, thereby being able to adapt to precise positioning guide pillars 21 of different lengths.

[0079] For example, the guide rod 14 may include multiple telescopic sections, which may be threadedly matched with each other. The overall length of the guide rod 14 may be adjusted by rotating the connection depth between the telescopic sections, thereby matching with the precision positioning guide column 21 .

[0080] In summary, the reactor guiding and positioning device is invented. During the operation of the reactor, the positioning unit 1 can be retracted to the side close to the pool wall, and during the loading and replacement of materials, it can be rotated to the position corresponding to the guide rod 14 and the precise positioning guide column 21 for guidance, thereby improving the utilization rate of the hoisting space and improving the operating efficiency and accuracy of the hoisting process.

[0081] Please refer to Figure 5 The present invention also proposes a reactor guidance and positioning method, which is implemented by using the above reactor guidance and positioning device, and the positioning method includes:

[0082] S1. When loading or replacing materials, the support frame is rotated relative to the support to the first position;

[0083] S2. Adjust the guide rod to rotate relative to the support frame to a second position corresponding to the precision positioning guide column and cooperate with the precision positioning guide column to provide guidance for the hoisting of the internal components of the pile.

[0084] In order to improve the guiding accuracy of the guide rod, a two-stage rotation method is used to adjust the position of the guide rod. The first step can be a rough rotation, that is, the support frame is rotated to the first position so that the guide rod basically corresponds to the position of the fine positioning guide column.

[0085] Then, the guide rod is further rotated to the final position with the position of the precision positioning guide column as a reference. At this time, the precision positioning guide column and the guide rod cooperate to provide guidance for the lifting of the in-core components, thereby improving the accuracy of the lifting guidance of the in-core components and avoiding slippage or collision accidents between the in-core components and the pressure vessel during the lifting process.

[0086] Providing a guide rod on the basis of the precision positioning guide column can extend the guide length of the precision positioning guide column, solving the problem of inaccurate positioning caused by a traditional guide column being set too long, thereby improving the operating efficiency and accuracy of the hoisting operation.

[0087] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "install", "connect", "connect", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0088] The present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or multiple times in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0089] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A reactor guidance and positioning device, characterized in that: include: At least two positioning units, at least two of which are arranged on opposite sides of the inner wall of the water pool, and a guide space is formed between the at least two of which, and the guide space cooperates with a precision positioning guide column installed on the reactor cylinder to provide guidance for the hanger; One end of each positioning unit is rotatably mounted on the pool wall, and the other end is provided with a guide rod, and the guide space is formed between the corresponding guide rods; wherein, The positioning unit has a folded state and a guiding state. In the folded state, the guide rod is retracted to the side close to the pool wall; in the guiding state, the guide rod is rotated to the core side and corresponds to the precise positioning guide column to guide the lifting of the in-core components.

2. The reactor guiding and positioning device according to claim 1, characterized in that: The positioning unit includes a support, a support frame and the guide rod. The support is detachably mounted on the pool wall, one end of the support frame is rotatably matched with the support, and the end of the support frame away from the support is rotatably matched with the guide rod.

3. The reactor guiding and positioning device according to claim 2, characterized in that: The support and the support frame are rotatably matched via a rotating shaft; The support is provided with a limit plate at one end facing the support frame, and when the positioning unit is in the guiding state, one end surface of the support frame abuts against the limit plate; When the positioning unit is in the folded state, the guide rod is rotated toward the pool wall side in a direction away from the limiting plate.

4. The reactor guiding and positioning device according to claim 3, characterized in that: When the positioning unit is in the guiding state, the support frame is connected to the limiting plate via a threaded connector or a buckle.

5. The reactor guiding and positioning device according to claim 2, characterized in that: A rotating column is provided between the support frame and the guide rod, and the rotating column is mounted on the support frame and rotatably cooperates with the support frame; The guide rod can be detachably mounted on one end of the rotating column.

6. The reactor guiding and positioning device according to claim 5, characterized in that: The support frame is provided with an adjustable limiter, and the adjustable limiter includes a base and an abutment rod threadedly connected to the base; The abutment rod is used to limit the rotation position of the guide rod.

7. The reactor guiding and positioning device according to claim 5, characterized in that: The rotating column is provided with at least one screw rod, and the guide rod is provided with a matching hole adapted to the screw rod; The rotating column is connected to the guide rod by inserting the screw rod into the matching hole and using a locking nut.

8. The reactor guiding and positioning device according to claim 1, characterized in that: The top and bottom of the guide rod are respectively provided with a first hook and a second hook; The first hook is used to connect the hoisting mechanism, and the second hook is used to cooperate with the precise positioning guide column.

9. The reactor guiding and positioning device according to claim 8, characterized in that: The guide rod is coaxially arranged with the precise positioning guide column, and the guide rod is matched with the precise positioning guide column through the second hook.

10. The reactor guiding and positioning device according to claim 8, characterized in that: The guide rod and the precision positioning guide column are non-coaxially arranged; At least one positioning block is arranged on the peripheral side of the precise positioning guide column, a plumb line is arranged on the second hook, and when the plumb line reaches the positioning block, the positioning unit reaches the guiding state in correspondence with the guiding rod.

11. The reactor guiding and positioning device according to claim 1, characterized in that: The axial length of the guide rod is adjustable.

12. A reactor guidance and positioning method, characterized in that: The reactor guiding and positioning device according to any one of claims 1 to 11 is used to implement the positioning method, wherein the positioning method comprises: Step 1: When loading or replacing materials, rotate the support frame relative to the support to a first position; Step 2: Adjust the guide rod to rotate relative to the support frame to a second position corresponding to the precision positioning guide column and cooperate with the precision positioning guide column to provide guidance for the hoisting of the internal components of the pile.

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