Hoisting tool for outer dome of nuclear power reactor

Abstract

The utility model relates to a hoisting tool for an outer dome of a nuclear power reactor, which is provided with a first hoisting groove and a second hoisting groove which are symmetrical to each other, so that a hoisting rope is uniformly stressed in a hoisting process, and potential safety hazards caused by overlarge stress of a single point are avoided. And due to the arrangement of the lifting rope assembly and the short lifting assembly, stress in the lifting process is more reasonable, shaking and deformation of the steel mold in the lifting process are reduced, and the lifting safety is improved. Furthermore, the lifting hook is arranged on a large crawler crane, the nuclear power reactor outer dome lifting tool can be correspondingly mounted on the large crawler crane, so that the outer dome steel mold is integrally lifted, the problem that the lifting load of a traditional tower crane is limited is effectively solved, and large-span and large-load lifting of the outer dome steel mold is realized.

Description

Technical Field

[0001] The utility model relates to the field of nuclear power, in particular to a tool for hoisting the outer dome of a nuclear power reactor. Background Art

[0002] The outer containment dome of a nuclear power plant's reactor building is a reinforced concrete structure with complex geometric dimensions. Because the outer dome sits atop the reactor building, it cannot be installed using conventional lifting equipment other than a tower crane. However, existing tower cranes have limited lifting capacity, making it impossible to install the outer dome's steel formwork. Furthermore, there is no dedicated lifting tool to connect the outer dome to a large crawler crane (with high lifting capacity), making installation of the outer dome extremely difficult. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a nuclear power reactor outer dome lifting tool, which can solve the problem of being unable to use crawler crane equipment with better lifting performance to lift the outer dome.

[0004] The utility model provides a nuclear power reactor outer dome hoisting tool for hoisting the outer dome steel mold. The nuclear power reactor outer dome hoisting tool comprises:

[0005] A hook, wherein a first lifting groove and a second lifting groove are symmetrically provided on the hook;

[0006] a plurality of lifting connection assemblies, each of the lifting connection assemblies being connected to the outer dome steel form;

[0007] a lifting rope assembly, comprising three first long lifting ropes and three second long lifting ropes, each of the first long lifting ropes being disposed in the first lifting groove, each of the second long lifting ropes being disposed in the second lifting groove, each of the first long lifting ropes being disposed at both ends with a lifting connection assembly, and each of the second long lifting ropes being disposed at both ends with a lifting connection assembly; and

[0008] The short lifting assembly includes a rope loop, a short rope shackle and a short lifting rope. The rope loop is respectively arranged in the first lifting groove and the second lifting groove, and the rope loop is passed through the short rope shackle. One end of the short lifting rope is connected to the short rope shackle, and the other end of the short lifting rope is connected to one of the lifting connection components.

[0009] Preferably, each of the lifting connection components includes a turnbuckle and a lifting shackle, wherein each of the first long lifting ropes is provided with a turnbuckle at both ends, each of the second lifting ropes is provided with a turnbuckle at both ends, and one end of the short lifting rope is provided with a turnbuckle;

[0010] Each of the turnbuckles is connected to each of the lifting shackles in a one-to-one correspondence, and each of the lifting shackles is connected to the outer dome steel form.

[0011] Preferably, thirteen lifting ears are provided on the outer dome steel formwork, and each of the lifting shackles is connected to each of the lifting ears in a one-to-one correspondence.

[0012] Preferably, the outer dome steel mold is provided with a lifting edge at a diameter of 41.968m, and each of the lifting ears is provided on the lifting edge.

[0013] Preferably, each of the lifting ears includes two first lifting ears, two second lifting ears, two third lifting ears, two fourth lifting ears, two fifth lifting ears, two sixth lifting ears and one seventh lifting ear;

[0014] The two first hanging ears and the two sixth hanging ears are symmetrical to each other, the two second hanging ears and the two fifth hanging ears are symmetrical to each other, and the two third hanging ears and the two fourth hanging ears are symmetrical to each other; the seventh hanging ear is arranged between the first hanging ear and the sixth hanging ear;

[0015] The two first lifting ears, the two second lifting ears and the two third lifting ears are all located on the same side of the outer dome steel form, and the two fourth lifting ears, the two fifth lifting ears and the two sixth lifting ears are all located on the other opposite side of the outer dome steel form.

[0016] Preferably, the first lifting groove is provided with a seventh accommodating position, a third accommodating position, a first accommodating position and a second accommodating position in a direction away from the center of the hook;

[0017] The short hanging rope is sleeved on the seventh accommodating position, the third accommodating position is for one of the first long hanging ropes to be passed through and connected to the two third hanging ears respectively, the first accommodating position is for another of the first long hanging ropes to be passed through and connected to the two first hanging ears respectively, and the second accommodating position is for the remaining one of the first long hanging ropes to be passed through and connected to the two second hanging ears respectively.

[0018] Preferably, the second lifting groove is provided with an eighth accommodating position, a fourth accommodating position, a sixth accommodating position and a fifth accommodating position in a direction away from the center of the hook;

[0019] The short hanging rope is also sleeved on the eighth accommodation position, the fourth accommodation position is for one second long hanging rope to be passed through and connected to the two second hanging ears respectively, the sixth accommodation position is for another second long hanging rope to be passed through and connected to the two sixth hanging ears respectively, and the fifth accommodation position is for the remaining second long hanging rope to be passed through and connected to the two fifth hanging ears respectively.

[0020] Preferably, the length of the first long hanging rope located in the first accommodation position is equal to the length of the second long hanging rope located in the sixth accommodation position;

[0021] The length of the first long hanging rope located in the second accommodating position is equal to the length of the second long hanging rope located in the fifth accommodating position;

[0022] The length of the first long hanging rope located in the third accommodating position is equal to the length of the second long hanging rope located in the fourth accommodating position.

[0023] Preferably, the length of the first long hanging rope located in the first accommodating position is 71.907m, the length of the first long hanging rope located in the second accommodating position is 71.711m, the length of the first long hanging rope located in the third accommodating position is 71.918m, and the length of the short hanging rope is 33.56m.

[0024] Preferably, the outer dome steel mold is arched as a whole.

[0025] The implementation of this utility model has the following beneficial effects:

[0026] The utility model relates to a nuclear power reactor outer dome hoisting tool. By providing symmetrical first and second hoisting slots, the tool ensures uniform force on the hoisting rope during hoisting, avoiding safety hazards caused by excessive force on a single point. The arrangement of the hoisting rope assembly and the short hoisting assembly makes the force applied during hoisting more reasonable, reduces the shaking and deformation of the steel mold during hoisting, and improves hoisting safety.

[0027] Furthermore, by setting the hook on the large crawler crane, the nuclear power reactor outer dome lifting tool can be installed on the large crawler crane accordingly, so as to lift the outer dome steel formwork as a whole, thereby effectively solving the problem of limited lifting load of traditional tower cranes and realizing large-span and large-load lifting of the outer dome steel formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0029] Figure 1 This is a schematic structural diagram of a nuclear power reactor outer dome hoisting tool in some embodiments of the present invention when hoisting an outer dome steel mold;

[0030] Figure 2 It is a cross-sectional view of a hook of a nuclear power reactor outer dome hoisting tool in some embodiments of the present invention when hoisting an outer dome steel formwork;

[0031] Figure 3 It is a partial structural diagram of a nuclear power reactor outer dome lifting tool in some embodiments of the present utility model;

[0032] Figure 4 It is a schematic diagram of another part of the structure of the nuclear power reactor outer dome lifting tool in some embodiments of the present utility model;

[0033] Figure 5 Schematic diagram of the structure of the hook and short lifting assembly of the nuclear power reactor outer dome lifting tool in some embodiments of the present invention;

[0034] Figure 6 It is a structural schematic diagram of a lifting shackle and an outer dome steel mold of a nuclear power reactor outer dome lifting tool in some embodiments of the present invention;

[0035] Figure 7 It is a structural diagram of the outer dome steel formwork set on the nuclear power reactor. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0037] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0038] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0040] Figures 1 to 5 The nuclear power reactor outer dome lifting tool 10 in some embodiments of the present invention is shown. The nuclear power reactor outer dome lifting tool 10 is used to lift the outer dome steel mold 20. The nuclear power reactor outer dome lifting tool 10 is used to be installed on a crawler crane, so that the crawler crane can lift the outer dome steel mold 20.

[0041] like Figures 1 to 7 As shown, a nuclear power reactor outer dome hoisting tool 10 comprises a hook 1, a lifting rope assembly 3, a short lifting assembly 4, and several lifting connection assemblies 2. The hook 1 is mounted on the lifting end of a crawler crane. The lifting rope assembly 3 and the short lifting assembly 4 are both mounted on the hook 1. Each lifting connection assembly 2 is mounted on the lifting rope assembly 3 and the short lifting assembly 4. The lifting connection assemblies 2 are connected to the outer dome steel formwork 20. In this way, the crawler crane can drive the hook 1 up, down, and laterally to move the outer dome steel formwork 20, thereby smoothly lifting and installing the outer dome steel formwork 20 to the desired location.

[0042] like Figure 2 and Figure 5 As shown, a first lifting groove 11 and a second lifting groove 12 are symmetrically provided on the hook 1; each lifting connection assembly 2 is connected to the outer dome steel form 20.

[0043] It can be understood that the first lifting groove 11 and the second lifting groove 12 are used together to fix the lifting rope assembly 3 and the short lifting assembly 4. The symmetrical arrangement of the first lifting groove 11 and the second lifting groove 12 ensures balance and stability during the lifting process.

[0044] like Figures 1 to 6 As shown, the lifting rope assembly 3 includes three first long lifting ropes 31 and three second long lifting ropes 32. Each first long lifting rope 31 is arranged in the first lifting groove 11, and each second long lifting rope 32 is arranged in the second lifting groove 12. A lifting connection assembly 2 is provided at both ends of each first long lifting rope 31, and a lifting connection assembly 2 is provided at both ends of each second long lifting rope 32.

[0045] The short lifting assembly 4 includes a rope loop 41, a short rope shackle 42 and a short lifting rope 43. The rope loop 41 is respectively arranged in the first lifting groove 11 and the second lifting groove 12, and the rope loop 41 is passed through the short rope shackle 42. One end of the short lifting rope 43 is connected to the short rope shackle 42, and the other end of the short lifting rope 43 is connected to a lifting connection assembly 2.

[0046] As can be understood, each first long lifting rope 31 is provided with a lifting connection assembly 2 at each end for connecting to the lifting point of the outer dome steel form 20. Each second long lifting rope 32 is provided with a lifting connection assembly 2 at each end for connecting to the lifting point of the outer dome steel form 20. The provision of the lifting rope assembly 3 ensures uniform stress on the outer dome steel form 20 during the lifting process, avoids local stress concentration, and improves the safety and reliability of the lifting.

[0047] Rope loop 41 is connected to short sling 43 via short sling shackle 42. Short sling shackle 42 connects rope loop 41 and short sling 43, ensuring a reliable and flexible connection. Short sling 43 is connected to a specific lifting point on the outer dome steel formwork 20, thereby increasing the flexibility of the lifting tool, adapting to different lifting point locations, and ensuring the stability and safety of the steel formwork during the lifting process.

[0048] The use process includes: installing the hook 1 on the lifting end of the crawler crane, ensuring that the hook 1 is secure and reliable. Placing the first long lifting rope 31 and the second long lifting rope 32 in the first lifting groove 11 and the second lifting groove 12, respectively, ensuring the correct installation of the lifting rope assembly 3 and the short lifting assembly 4. Connecting the lifting connection assembly 2 on each end of each first long lifting rope 31 to the outer dome steel form 20, connecting the lifting connection assembly 2 on each end of each second long lifting rope 32 to the outer dome steel form 20, and connecting the lifting connection assembly 2 connected to the short lifting assembly 4 to the outer dome steel form 20.

[0049] like Figure 3 and Figure 4 As shown, in some embodiments of the nuclear power reactor outer dome lifting tool 10, each lifting connection assembly 2 includes a turnbuckle 21 and a lifting shackle 22. Each first long lifting rope 31 is provided with a turnbuckle 21 at both ends, each second lifting rope is provided with a turnbuckle 21 at both ends, and a turnbuckle 21 is provided at one end of the short lifting rope 43.

[0050] Each turnbuckle 21 is connected to each lifting shackle 22 in a one-to-one correspondence, and each lifting shackle 22 is connected to the outer dome steel form 20 .

[0051] As can be understood, the turnbuckles 21 are used to adjust the length of the lifting ropes, ensuring uniform force at each lifting point during the lifting process. Each first long lifting rope 31 is provided with a turnbuckle 21 at each end, each second long lifting rope 32 is also provided with a turnbuckle 21 at each end, and the short lifting rope 43 is also provided with a turnbuckle 21 at one end. The provision of these turnbuckles 21 ensures that the rope length can be adjusted according to actual conditions during the lifting process, making the lifting process more flexible and precise.

[0052] Lifting shackles 22 connect the turnbuckles 21 to the lifting points of the outer dome steel formwork 20, ensuring a reliable and secure connection. Each turnbuckle 21 is connected to a corresponding lifting shackle 22, and each lifting shackle 22 is connected to a lifting point on the outer dome steel formwork 20. This arrangement ensures uniform force at each lifting point during the lifting process, reducing safety risks and improving the reliability and safety of the lifting process.

[0053] like Figures 3 to 5 As shown, in some embodiments of the nuclear power reactor outer dome lifting tool 10 , thirteen lifting ears 50 are provided on the outer dome steel form 20 , and each lifting shackle 22 is connected to each lifting ear 50 in a one-to-one correspondence.

[0054] It is understood that one of the lifting lugs 50 is connected to the short rope shackle 42, while the remaining lifting lugs 50 are connected one-to-one with the lifting shackle 22. Each lifting lug 50 can be configured to be integrally formed and provided on the outer dome steel form 20. It should be noted that the connection between the lifting lug and the shackle referred to in the embodiment can be a direct connection or can be configured to be connected through other intermediate components.

[0055] like Figure 1 As shown, in some embodiments of the nuclear power reactor outer dome lifting tool 10 , the outer dome steel mold 20 is provided with a lifting edge at a diameter of 41.968 m, and each lifting lug is provided on the lifting edge 30 .

[0056] It can be understood that the lifting perimeter is a continuous, evenly distributed structure used to install and secure the lifting lugs 50. This ensures an even distribution of lifting points during the lifting process, improving the balance and stability of the lifting. Of course, the lifting perimeter 30 can simply be a designation for a specific area or location on the outer dome steel form 20, and is not defined or defined by a specific structure.

[0057] like Figure 1 As shown, in some embodiments of the nuclear power reactor outer dome lifting tool 10, each lifting eye includes two first lifting eyes 51, two second lifting eyes 52, two third lifting eyes 53, two fourth lifting eyes 54, two fifth lifting eyes 55, two sixth lifting eyes 56 and one seventh lifting eye 57;

[0058] The two first hanging ears 51 and the two sixth hanging ears 56 are symmetrical to each other, the two second hanging ears 52 and the two fifth hanging ears 55 are symmetrical to each other, and the two third hanging ears 53 and the two fourth hanging ears 54 are symmetrical to each other; the seventh hanging ear 57 is provided between the first hanging ear 51 and the sixth hanging ear 56;

[0059] The two first lifting ears 51 , the two second lifting ears 52 and the two third lifting ears 53 are all located on the same side of the outer dome steel form 20 , and the two fourth lifting ears 54 , the two fifth lifting ears 55 and the two sixth lifting ears 56 are all located on the other opposite side of the outer dome steel form 20 .

[0060] As can be understood, in this embodiment, the symmetrically distributed lifting lugs ensure more uniform force at each lifting point during the installation process. This uniform force distribution effectively avoids localized stress concentration and reduces deformation or damage to the steel formwork caused by uneven force. Furthermore, the symmetrically distributed lifting lugs ensure that the outer dome steel formwork 20 maintains a well-balanced state during installation, reducing the risk of sway and deflection and improving installation stability.

[0061] like Figure 2 and Figure 5 As shown, in some embodiments of the nuclear power reactor outer dome lifting tool 10, the first lifting groove 11 is provided with a seventh accommodation position 117, a third accommodation position 113, a first accommodation position 111 and a second accommodation position 112 in a direction away from the center of the hook 1;

[0062] The short hanging rope 43 is sleeved on the seventh accommodating position 117, the third accommodating position 113 is for a first long hanging rope 31 to pass through and be connected to the two third hanging ears 53 respectively, the first accommodating position 111 is for another first long hanging rope 31 to pass through and be connected to the two first hanging ears 51 respectively, and the second accommodating position 112 is for the remaining first long hanging rope 31 to pass through and be connected to the two second hanging ears 52 respectively.

[0063] It is understood that the seventh accommodation position 117, the third accommodation position 113, the first accommodation position 111, and the second accommodation position 112 are all arranged one by one along the wall of the first lifting groove 11. In this way, there will be no positional interference between the short lifting rope 43 and the three first long lifting ropes 31, which can prevent stress concentration in a local area within the first lifting groove 11 and avoid structural pressure damage caused by stress concentration.

[0064] It should be noted that each of the third accommodation position 113 , the first accommodation position 111 and the second accommodation position 112 is provided with a first long hanging rope 31 .

[0065] like Figure 2 and Figure 5As shown, in some embodiments of the nuclear power reactor outer dome lifting tool 10, the second lifting groove 12 is provided with an eighth accommodation position 128, a fourth accommodation position 124, a sixth accommodation position 126 and a fifth accommodation position 125 in a direction away from the center of the hook 1;

[0066] The short hanging rope 43 is also sleeved on the eighth accommodating position 128, the fourth accommodating position 124 is for a second long hanging rope 32 to pass through and be connected to the two second hanging ears 52 respectively, the sixth accommodating position 126 is for another second long hanging rope 32 to pass through and be connected to the two sixth hanging ears 56 respectively, and the fifth accommodating position 125 is for the remaining second long hanging rope 32 to pass through and be connected to the two fifth hanging ears 55 respectively.

[0067] It can be understood that the eighth accommodating position 128, the fourth accommodating position 124, the sixth accommodating position 126 and the fifth accommodating position 125 are configured to be set one by one along the groove wall of the second lifting groove 12, so that there will be no positional interference between the short lifting rope 43 and the three second long lifting ropes 32, which can prevent stress from concentrating on a local position in the second lifting groove 12, ensure the uniform distribution of lifting pressure, and improve the lifting balance.

[0068] It should be noted that each of the fourth accommodation position 124 , the sixth accommodation position 126 and the fifth accommodation position 125 is provided for installing a second long hanging rope 32 .

[0069] It should also be noted that, in conjunction with the aforementioned embodiments, the positions of the first long lifting ropes and the second long lifting ropes on the hook are symmetrical, and the two connection locations of the short lifting ropes 43 on the hook 1 are also symmetrical. This ensures that the pressure generated during the hoisting of the outer dome steel form 20 is evenly transmitted to the first lifting groove 11 and the second lifting groove 12, and the pressure transmitted to the first lifting groove 11 and the pressure transmitted to the second lifting groove 12 are symmetrical, further improving the balance of the tool when hoisting the outer dome steel form 20.

[0070] like Figure 1 and Figure 2 As shown, in some embodiments of the nuclear power reactor outer dome hoisting tool 10, the length of the first long hoisting rope 31 located in the first accommodation position 111 is equal to the length of the second long hoisting rope 32 located in the sixth accommodation position 126;

[0071] The length of the first long hanging rope 31 located in the second accommodating position 112 is equal to the length of the second long hanging rope 32 located in the fifth accommodating position 125;

[0072] The length of the first long hanging rope 31 located in the third accommodating position 113 is equal to the length of the second long hanging rope 32 located in the fourth accommodating position 124 .

[0073] Combining the description of the positions of the various accommodating positions in the previous embodiment, it can be seen that: the positions of the first accommodating position 111 and the sixth accommodating position 126 on the hook 1 are symmetrical to each other; the positions of the second accommodating position 112 and the fifth accommodating position 125 on the hook 1 are symmetrical to each other; the positions of the third accommodating position 113 and the fourth accommodating position 124 on the hook 1 are symmetrical to each other. On this basis, combined with the content of this type of embodiment, it can be seen that:

[0074] By respectively arranging long ropes of equal length (a first long rope 31 and a second long rope 32) at two symmetrical positions on the hook (the first accommodating position 111 and the sixth accommodating position 126), the forces acting on the hook during the lifting process can be symmetrically applied.

[0075] Of course, since the second accommodating position 112 and the fifth accommodating position 125 are symmetrical to each other and are respectively provided with the first long lifting rope 31 and the second long lifting rope 32 of equal length; and the third accommodating position 113 and the fourth accommodating position 124 are symmetrical to each other and are respectively provided with the first long lifting rope 31 and the second long lifting rope 32 of equal length; the lifting balance and lifting stability of the outer dome steel formwork 20 are further improved.

[0076] Specifically, in some embodiments of the nuclear power reactor outer dome lifting tool 10, the length of the first long lifting rope 31 located in the first accommodating position 111 is 71.907m, the length of the first long lifting rope 31 located in the second accommodating position 112 is 71.711m, the length of the first long lifting rope 31 located in the third accommodating position 113 is 71.918m, and the length of the short lifting rope is 33.56m.

[0077] As can be understood, by precisely designing the specific lengths of the various long hoisting ropes, the nuclear power reactor outer dome hoisting tool 10 not only improves the balance and stability of the hoisting process, but also enhances structural strength, simplifies the installation and commissioning process, improves hoisting accuracy, and enhances safety. Together, these ensure efficient, safe, and reliable installation of the outer dome steel formwork 20.

[0078] like Figure 6 and Figure 7 As shown, in some embodiments of the nuclear power reactor outer dome lifting tool 10, the outer dome steel mold 20 is arched as a whole.

[0079] It is understandable that the external dimensions of the outer dome steel formwork 20 are adjusted according to actual construction requirements and are not limited thereto.

[0080] The implementation of this utility model has the following beneficial effects:

[0081] The utility model relates to a nuclear power reactor outer dome hoisting tool. By providing symmetrical first and second hoisting slots, the tool ensures uniform force on the hoisting rope during hoisting, avoiding safety hazards caused by excessive force on a single point. The arrangement of the hoisting rope assembly and the short hoisting assembly makes the force applied during hoisting more reasonable, reduces the shaking and deformation of the steel mold during hoisting, and improves hoisting safety.

[0082] Furthermore, by setting the hook on the large crawler crane, the nuclear power reactor outer dome lifting tool can be installed on the large crawler crane accordingly, so as to lift the outer dome steel formwork as a whole, thereby effectively solving the problem of limited lifting load of traditional tower cranes and realizing large-span and large-load lifting of the outer dome steel formwork.

[0083] The scheme of the present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphases. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the description are not necessarily required for the present invention. In addition, it can be understood that the steps in the method of the embodiment of the present invention can be adjusted in sequence, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present invention can be merged, divided and deleted according to actual needs.

[0084] While various embodiments of the present invention have been described above, the above descriptions are illustrative and non-exhaustive, and are not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A nuclear power reactor outer dome hoisting tool for hoisting the outer dome steel mold, characterized in that: The nuclear power reactor outer dome hoisting tool comprises: A hook, wherein a first lifting groove and a second lifting groove are symmetrically provided on the hook; a plurality of lifting connection assemblies, each of the lifting connection assemblies being connected to the outer dome steel form; a lifting rope assembly, comprising three first long lifting ropes and three second long lifting ropes, each of the first long lifting ropes being disposed in the first lifting groove, each of the second long lifting ropes being disposed in the second lifting groove, each of the first long lifting ropes being disposed at both ends with a lifting connection assembly, and each of the second long lifting ropes being disposed at both ends with a lifting connection assembly; and The short lifting assembly includes a rope loop, a short rope shackle and a short lifting rope. The rope loop is respectively arranged in the first lifting groove and the second lifting groove, and the rope loop is passed through the short rope shackle. One end of the short lifting rope is connected to the short rope shackle, and the other end of the short lifting rope is connected to one of the lifting connection components.

2. The nuclear power reactor outer dome lifting tool according to claim 1, characterized in that: Each of the lifting connection components includes a turnbuckle and a lifting shackle. Each of the first long lifting ropes is provided with a turnbuckle at both ends. Each of the second long lifting ropes is provided with a turnbuckle at both ends. One end of the short lifting rope is provided with a turnbuckle. Each of the turnbuckles is connected to each of the lifting shackles in a one-to-one correspondence, and each of the lifting shackles is connected to the outer dome steel form.

3. The nuclear power reactor outer dome hoisting tool according to claim 2, characterized in that: Thirteen lifting ears are provided on the outer dome steel formwork, and each of the lifting shackles is connected to each of the lifting ears in a one-to-one correspondence.

4. The nuclear power reactor outer dome hoisting tool according to claim 3, characterized in that: The outer dome steel mold is provided with a lifting edge at a diameter of 41.968m, and each of the lifting ears is provided on the lifting edge.

5. The nuclear power reactor outer dome hoisting tool according to claim 4, characterized in that: Each of the lifting ears includes two first lifting ears, two second lifting ears, two third lifting ears, two fourth lifting ears, two fifth lifting ears, two sixth lifting ears and one seventh lifting ear; The two first hanging ears and the two sixth hanging ears are symmetrical to each other, the two second hanging ears and the two fifth hanging ears are symmetrical to each other, and the two third hanging ears and the two fourth hanging ears are symmetrical to each other; the seventh hanging ear is arranged between the first hanging ear and the sixth hanging ear; The two first lifting ears, the two second lifting ears and the two third lifting ears are all located on the same side of the outer dome steel form, and the two fourth lifting ears, the two fifth lifting ears and the two sixth lifting ears are all located on the other opposite side of the outer dome steel form.

6. The nuclear power reactor outer dome hoisting tool according to claim 5, characterized in that: The first lifting groove is provided with a seventh accommodating position, a third accommodating position, a first accommodating position and a second accommodating position in a direction away from the center of the hook; The short hanging rope is sleeved on the seventh accommodating position, the third accommodating position is for one of the first long hanging ropes to be passed through and connected to the two third hanging ears respectively, the first accommodating position is for another of the first long hanging ropes to be passed through and connected to the two first hanging ears respectively, and the second accommodating position is for the remaining one of the first long hanging ropes to be passed through and connected to the two second hanging ears respectively.

7. The nuclear power reactor outer dome hoisting tool according to claim 6, characterized in that: The second lifting groove is provided with an eighth accommodating position, a fourth accommodating position, a sixth accommodating position and a fifth accommodating position in a direction away from the center of the hook; The short hanging rope is also sleeved on the eighth accommodation position, the fourth accommodation position is for one second long hanging rope to be passed through and connected to the two second hanging ears respectively, the sixth accommodation position is for another second long hanging rope to be passed through and connected to the two sixth hanging ears respectively, and the fifth accommodation position is for the remaining second long hanging rope to be passed through and connected to the two fifth hanging ears respectively.

8. The nuclear power reactor outer dome hoisting tool according to claim 7, characterized in that: The length of the first long hanging rope located in the first accommodation position is equal to the length of the second long hanging rope located in the sixth accommodation position; The length of the first long hanging rope located in the second accommodating position is equal to the length of the second long hanging rope located in the fifth accommodating position; The length of the first long hanging rope located in the third accommodating position is equal to the length of the second long hanging rope located in the fourth accommodating position.

9. The nuclear power reactor outer dome hoisting tool according to claim 8, characterized in that: The length of the first long hanging rope in the first accommodating position is 71.907m, the length of the first long hanging rope in the second accommodating position is 71.711m, the length of the first long hanging rope in the third accommodating position is 71.918m, and the length of the short hanging rope is 33.56m.

10. The nuclear power reactor outer dome hoisting tool according to claim 1, characterized in that: The outer dome steel mold is arched as a whole.

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