Integral lifting device for vertical support of main equipment of nuclear power plant and lifting method

Abstract

The application provides a nuclear power plant main equipment vertical support overall hoisting device and hoisting method, relates to the hoisting technical field, and comprises a hoisting assembly and a positioning assembly; the hoisting assembly comprises a hoisting beam, a first lifting cable and a second lifting cable; the first lifting cable is multiple, the multiple first lifting cables are detachably connected with the upper surface of the hoisting beam respectively, and the multiple first lifting cables are uniformly and interval arranged along the circumference of the hoisting beam; the second lifting cable is multiple, the multiple second lifting cables are detachably connected with the lower surface of the hoisting beam respectively, and the multiple second lifting cables are uniformly and interval arranged along the circumference of the hoisting beam; the bottom of each second lifting cable is provided with a first embracing ring, and the multiple first embracing rings are used for detachably sleeving with the multiple supporting pieces one by one; the positioning assembly comprises multiple positioning rods; two adjacent supporting pieces are detachably connected through the positioning rod. Only one large crane is needed to hoist the multiple supporting pieces to the preset position, the use frequency of the large crane is reduced, the hoisting efficiency is improved, and the hoisting cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of hoisting technology, and in particular to a hoisting device and method for vertical support of main equipment in nuclear power plants. Background Technology

[0002] Open-top method for nuclear power plant installation refers to a construction method in which key nuclear island equipment and mechanical modules are pre-installed and moved into their corresponding positions within the nuclear island using large cranes before the reactor building dome is fully in place. Using the open-top method for the main equipment of a nuclear power plant significantly reduces the time required for the introduction and installation of its vertical supports.

[0003] The vertical supports of the main equipment in a nuclear power plant serve as supporting components and are a prerequisite for the hoisting and positioning of the main equipment. Taking a steam generator as an example, its vertical support consists of four sets of vertical support columns, installed on the equipment foundation between the corresponding loop steam generators.

[0004] In the traditional vertical support hoisting process for steam generators, a large crane is generally used to flip and erect a single vertical support column and hoist it into place on the corresponding foundation. Then, fasteners and retaining tools are installed. After the installation of a single vertical support column is completed, the installation of the remaining three vertical support columns is completed one by one according to the above operation process.

[0005] However, in the above process, the installation of each vertical support column requires the use of a large crane for hoisting. The large crane has low working efficiency and high cost, which will result in a long construction cycle and high construction cost for the vertical support. Summary of the Invention

[0006] The purpose of this invention is to provide an integral hoisting device for vertical support of main equipment in nuclear power plants, so as to solve the technical problems of long construction period and high construction cost of vertical support in the prior art.

[0007] The present invention provides a vertical support hoisting device for main equipment of nuclear power plants, comprising a hoisting assembly and a positioning assembly;

[0008] The hoisting assembly includes a lifting beam, a first sling, and a second sling;

[0009] There are multiple first slings, and each of the multiple first slings is detachably connected to the upper surface of the lifting beam, and the multiple first slings are evenly spaced along the circumference of the lifting beam;

[0010] There are multiple second slings, each of which is detachably connected to the lower surface of the lifting beam, and the multiple second slings are evenly spaced along the circumference of the lifting beam; each second sling is provided with a first loop at its bottom, and the multiple first loops are used to detachably engage with multiple support members one by one;

[0011] The positioning assembly includes multiple positioning rods; two adjacent support members are detachably connected through the positioning rods.

[0012] Furthermore, the first ring includes a first half-ring structure and a second half-ring structure;

[0013] The first semi-ring structure and the second semi-ring structure are fastened together to form a ring structure, and the first semi-ring structure and the second semi-ring structure are detachably connected by fasteners.

[0014] Furthermore, the hoisting assembly also includes a first isolating member, which is disposed between the first clamping ring and the support member.

[0015] Furthermore, each end of the positioning rod is provided with a second retaining ring, which is used to detachably engage with the support member.

[0016] Furthermore, the second ring includes a third semi-ring structure and a fourth semi-ring structure;

[0017] The third semi-ring structure and the fourth semi-ring structure are fastened together to form a ring structure, and the third semi-ring structure and the fourth semi-ring structure are detachably connected by fasteners.

[0018] Furthermore, the positioning rod is a telescopic rod.

[0019] Furthermore, the positioning rod includes a first rod body and a second rod body, the first rod body is sleeved on the second rod body, and the first rod body and the second rod body are threadedly connected.

[0020] The present invention also aims to provide a method for the overall hoisting of vertical supports for main equipment in nuclear power plants. The hoisting is performed using the overall hoisting device for vertical supports of main equipment in nuclear power plants provided by the present invention, and includes the following steps:

[0021] Step S1: Install a first clamping ring on each support member and install a second sling on each first clamping ring;

[0022] Step S2: Use a truck crane to lift the second sling on any of the supports, so that the support is flipped and erected, and then lifted to a temporary position; temporarily fix the support in the temporary position.

[0023] Step S3: Repeat step S2 to hoist and temporarily fix all the support components to their temporary positions;

[0024] Step S4: Adjust the relative positions between multiple support components. After the relative positions between multiple support components meet the preset standard, connect the positioning rod between two adjacent support components.

[0025] Step S5: Connect the top end of the second sling to the lower surface of the lifting beam, and connect the bottom end of the first sling to the upper surface of the lifting beam; use a large crane to connect with the first sling, and the large crane will lift the multiple support components as a whole to the preset position.

[0026] Furthermore, step S0 is included before step S1;

[0027] Step S0: Draw lines on the hoisting site according to the design drawings to mark the temporary placement positions of multiple support components;

[0028] A work platform is erected, which is set up in a ring shape and surrounds the temporary positioning positions of multiple support components.

[0029] Furthermore, step S6 is included between step S4 and step S5;

[0030] Step S6: Use a truck crane to install fasteners on the base plate of the support.

[0031] The present invention provides a vertical support hoisting device for main equipment of a nuclear power plant, comprising a hoisting assembly and a positioning assembly. The hoisting assembly includes a lifting beam, a first sling, and a second sling. Multiple first slings are detachably connected to the upper surface of the lifting beam and are evenly spaced along the circumference of the lifting beam. Multiple second slings are detachably connected to the lower surface of the lifting beam and are evenly spaced along the circumference of the lifting beam. Each second sling has a first retaining ring at its bottom, and the multiple first retaining rings are detachably fitted one-to-one with multiple support members. The positioning assembly includes multiple positioning rods; adjacent support members are detachably connected via the positioning rods. When hoisting the vertical supports of the main equipment of a nuclear power plant, the following steps can be taken: Step S1: Install a first sling on each support member and a second sling on each first sling; Step S2: Use a truck crane to hoist the second sling on any support member, so that the support member is rotated and erected, and then hoist the support member to a temporary position; after the support member is hoisted to the temporary position, temporarily fix the support member in the temporary position; Step S3: Repeat step S2 to hoist and temporarily fix multiple support members to their temporary positions. Step S4: Fine-tune the relative positions of multiple support components to ensure they meet a preset standard. At this point, connect positioning rods between adjacent support components to fix their relative positions. This process is repeated using multiple positioning rods. Step S5: Connect the top end of the second sling to the lower surface of the lifting beam and the bottom end of the first sling to the upper surface of the lifting beam. Connect a large crane to the first sling and hoist the multiple support components to the preset position. Using the vertical support hoisting device for nuclear power plant main equipment provided in this embodiment, a truck crane can be used to hoist and temporarily fix each support component to its temporary position. After all support components are hoisted and temporarily fixed, a large crane is used to hoist the entire support component to the preset position. During the entire hoisting process, only one use of the large crane is required to hoist the entire support component to the preset position, reducing the number of times the large crane is used, improving hoisting efficiency, and lowering hoisting costs. It can improve the assembly efficiency of vertical supports on site and reduce the time spent assembling the main equipment. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the overall hoisting device for vertical support of main equipment in a nuclear power plant according to one embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the overall hoisting device for vertical support of main equipment in a nuclear power plant, provided in another embodiment of the present invention.

[0035] Icons: 1 - First sling; 2 - Lifting beam; 3 - Second sling; 4 - First clamp; 5 - Second clamp; 6 - Positioning rod; 7 - Support component; 8 - Plate lifting lug; 9 - Lifting lug. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] This invention provides an integral hoisting device and method for vertical support of main equipment in nuclear power plants. Several embodiments are given below to describe in detail the integral hoisting device and method for vertical support of main equipment in nuclear power plants provided by this invention.

[0038] Example 1

[0039] The nuclear power plant main equipment vertical support hoisting device provided in this embodiment includes a hoisting assembly and a positioning assembly. The hoisting assembly includes a lifting beam 2, a first sling 1, and a second sling 3. There are multiple first slings 1, which are detachably connected to the upper surface of the lifting beam 2 and are evenly spaced along the circumference of the lifting beam 2. There are multiple second slings 3, which are detachably connected to the lower surface of the lifting beam 2 and are evenly spaced along the circumference of the lifting beam 2. Each second sling 3 has a first clamping ring 4 at its bottom, and the multiple first clamping rings 4 are used to detachably engage with multiple support members 7 one-to-one. The positioning assembly includes multiple positioning rods 6. Two adjacent support members 7 are detachably connected through the positioning rods 6.

[0040] The first sling 1 can be a standard sling, used to connect the lifting machinery and the lifting beam 2. When connecting the lifting machinery and the lifting beam 2, the top ends of multiple first slings 1 are connected to the hooks of the lifting machinery, enabling the lifting machinery to lift the lifting beam 2. Multiple first slings 1 are evenly spaced along the circumference of the lifting beam 2, ensuring even force distribution during lifting and maintaining good balance. In this embodiment, the lifting beam 2 is square, with the first slings 1 connected to each of the four corners; or, the lifting beam 2 is triangular, with the first slings 1 connected to each of the three corners.

[0041] The lifting beam 2 can be made of structural steel, and its upper and lower surfaces are respectively equipped with plate-type lifting lugs 8. The first lifting cable 1 is detachably connected to the upper surface of the lifting beam 2 via the plate-type lifting lugs 8, and the second lifting cable 3 is detachably connected to the lower surface of the lifting beam 2 via the plate-type lifting lugs 8. Furthermore, the connection positions of the first lifting cable 1 and the upper surface of the lifting beam 2, and the connection positions of the second lifting cable 3 and the lower surface of the lifting beam 2, are arranged in a one-to-one correspondence, with the connection position of the first lifting cable 1 above the connection position of the second lifting cable 3 above the lower surface of the lifting beam 2. The lifting beam 2 can be configured as a three-point or four-point type lifting beam, or any suitable structure, depending on the number of support members 7.

[0042] The second sling 3 can be a standard sling, and the second sling 3 is used to connect the lifting beam 2 and the first clamp 4.

[0043] Each second sling 3 is detachably connected to a first retaining ring 4 at its bottom. The number of first retaining rings 4 matches the number of support members 7, with one first retaining ring 4 corresponding to each support member 7. The first retaining ring 4 is fitted onto the top area of ​​the support member 7. The inner diameter of the first retaining ring 4 matches the outer diameter of the support member 7, and two lifting lugs 9 are symmetrically arranged on the outer surface of the first retaining ring 4. The two lifting lugs 9 are detachably connected to the second sling 3 respectively. The symmetrical arrangement of the two lifting lugs 9 allows for a more balanced force distribution on the first retaining ring 4. Specifically, after the second sling 3 passes through the plate-type lifting lug 8 on the lower surface of the lifting beam 2, one end of the second sling 3 is detachably connected to one lifting lug 9, and the other end of the second sling 3 is detachably connected to the other lifting lug 9.

[0044] The positioning rod 6 can be made of steel pipe, and two adjacent support members 7 are detachably connected by the positioning rod 6, so that the two adjacent support members 7 are positioned by the positioning rod 6. The number of positioning rods 6 is the same as the number of support members 7.

[0045] When hoisting the vertical supports of the main equipment of a nuclear power plant, the following steps can be taken: Step S1: Install a first clamping ring 4 on each support member 7 and install a second sling 3 on each first clamping ring 4; Step S2: Use a truck crane to hoist the second sling 3 on any support member 7, so that the support member 7 is flipped and erected, and hoist the support member 7 to a temporary position; After the support member 7 is hoisted to the temporary position, temporarily fix the support member 7 in the temporary position; Step S3: Repeat step S2 to hoist and temporarily fix multiple support members 7 to the temporary position. Step S4: Fine-tune the relative positions of the multiple support members 7 to make them conform to the preset standard; at this time, connect the positioning rods 6 between two adjacent support members 7 to fix the relative positions of the two adjacent support members 7, and then fix the relative positions of the multiple support members 7 through the multiple positioning rods 6; Step S5: Connect the top end of the second sling 3 to the lower surface of the lifting beam 2, and connect the bottom end of the first sling 1 to the upper surface of the lifting beam 2; use a large crane to connect with the first sling 1, and the large crane will lift the multiple support members 7 as a whole to the preset position. Using the vertical support hoisting device for nuclear power plant main equipment provided in this embodiment, each support component 7 can be hoisted and temporarily fixed to a temporary position using a truck crane. After multiple support components 7 have been hoisted and temporarily fixed to their temporary positions, a large crane is used to hoist the multiple support components 7 as a whole to a preset position. In the entire hoisting process, only one use of the large crane is needed to hoist the multiple support components 7 as a whole to the preset position, which can reduce the number of times the large crane is used, improve hoisting efficiency, and reduce hoisting costs.

[0046] Furthermore, the first retaining ring 4 includes a first half-ring structure and a second half-ring structure; the first half-ring structure and the second half-ring structure are fastened together to form a ring structure, and the first half-ring structure and the second half-ring structure are detachably connected by fasteners.

[0047] Specifically, the first half-ring structure and the second half-ring structure can be fastened together to form a ring-shaped first ring 4. After the first half-ring structure and the second half-ring structure are fastened together to form a ring structure, the first half-ring structure and the second half-ring structure are detachably connected by fasteners so that the first half-ring structure and the second half-ring structure are connected into a whole.

[0048] The fasteners can be bolts, screws, or any other suitable form.

[0049] Furthermore, the hoisting assembly also includes a first isolation member, which is disposed between the first clamping ring 4 and the support member 7.

[0050] A first spacer is placed between the first retaining ring 4 and the support member 7. The first spacer is used to protect the surface coating of the support member 7 and increase the friction between the first retaining ring 4 and the support member 7.

[0051] The first isolation element can be any suitable form, such as a rubber sheet or a silicone sheet.

[0052] Two adjacent support members 7 are detachably connected by a positioning rod 6. Connectors can be provided at both ends of the positioning rod 6 to detachably connect the connectors to the support members 7. The connectors can be any suitable form, such as block or plate.

[0053] Preferably, the positioning rod 6 is provided with a second retaining ring 5 at both ends, and the second retaining ring 5 is used to detachably engage with the support member 7.

[0054] The second retaining ring 5 is fitted onto the bottom region of the support member 7. The inner diameter of the second retaining ring 5 matches the outer diameter of the support member 7. Two connecting pieces are provided on the outer surface of the second retaining ring 5, which are used for detachable connection with the positioning rod 6. The two connecting pieces can be arranged symmetrically. A second spacer can be provided between the second retaining ring 5 and the support member 7. The second spacer is used to protect the surface coating of the support member 7 and increase the friction between the second retaining ring 5 and the support member 7.

[0055] The second isolation element can be any suitable form, such as a rubber sheet or a silicone sheet.

[0056] Furthermore, the second ring 5 includes a third half-ring structure and a fourth half-ring structure; the third half-ring structure and the fourth half-ring structure are fastened together to form a ring structure, and the third half-ring structure and the fourth half-ring structure are detachably connected by fasteners.

[0057] Specifically, the third and fourth semi-ring structures can be fastened together to form a ring-shaped second ring 5. After the third and fourth semi-ring structures are fastened together to form a ring structure, the third and fourth semi-ring structures are detachably connected by fasteners so that the third and fourth semi-ring structures are connected as a whole.

[0058] The fasteners can be bolts, screws, or any other suitable form.

[0059] Furthermore, positioning rod 6 is a telescopic rod.

[0060] When the positioning rod 6 is a telescopic rod, the length of the positioning rod 6 can be changed along the axial direction of the positioning rod 6 to accommodate various spacings between two support members 7.

[0061] Furthermore, the positioning rod 6 includes a first rod body and a second rod body, the first rod body is sleeved on the second rod body, and the first rod body and the second rod body are threadedly connected.

[0062] Specifically, the inner surface of the first rod is provided with an internal thread, and the outer surface of the second rod is provided with an external thread. The first rod is sleeved on the second rod. When the first rod rotates relative to the second rod, the first rod extends and retracts relative to the second rod along the axial direction of the positioning rod 6.

[0063] In this embodiment, the detachable connection method can be a snap-fit ​​or a threaded connection, or any other suitable method.

[0064] Example 2

[0065] The method for vertically supporting and hoisting the main equipment of a nuclear power plant provided in this embodiment uses the vertically supporting and hoisting device for the main equipment of a nuclear power plant provided in Embodiment 1 for hoisting, and includes the following steps:

[0066] Step S1: Install a first clamping ring 4 on each support member 7 and install a second sling 3 on each first clamping ring 4; Step S2: Use a truck crane to lift the second sling 3 on any support member 7, so that the support member 7 is flipped and erected, and lifted to a temporary position; temporarily fix the support member 7 in the temporary position.

[0067] Step S3: Repeat step S2 to hoist and temporarily fix all the support components 7 to their temporary positions;

[0068] Step S4: Adjust the relative positions between the multiple support members 7. After the relative positions between the multiple support members 7 meet the preset standard, connect the positioning rod 6 between two adjacent support members 7.

[0069] Step S5: Connect the top end of the second sling 3 to the lower surface of the lifting beam 2, and connect the bottom end of the first sling 1 to the upper surface of the lifting beam 2; use a large crane to connect with the first sling 1, and the large crane will lift the multiple support components 7 as a whole to the preset position.

[0070] Specifically, step S1: A first clamping ring 4 is fitted onto the top area of ​​each support member 7, and a second sling 3 is installed on each first clamping ring 4; a second clamping ring 5 is fitted onto the bottom area of ​​each support member 7. Step S2: A truck crane is used to lift the second sling 3 onto any support member 7, causing the support member 7 to be flipped and erected, and then the support member 7 is lifted to a temporary position. After the support member 7 is lifted to the temporary position, it is temporarily fixed in that position. Step S3: Step S2 is repeated to lift and temporarily fix all support members 7 to their temporary positions. Step S4: The relative positions of the multiple support members 7 are finely adjusted to ensure that the relative positions of the multiple support members 7 are... The position meets the preset standard; at this time, a positioning rod 6 is connected between two adjacent support members 7, so that the two ends of the positioning rod 6 are respectively connected to the second clamping ring 5 on the two adjacent support members 7. The relative position between the two adjacent support members 7 is fixed by the positioning rod 6, and then the relative position between multiple support members 7 is fixed by multiple positioning rods 6; Step S5: Connect the top end of the second sling 3 to the lower surface of the lifting beam 2, and connect the bottom end of the first sling 1 to the upper surface of the lifting beam 2; use a large crane to connect with the first sling 1, and the large crane lifts multiple support members 7 as a whole to the preset position (the preset position on the equipment foundation), and then locks multiple support members 7 to the preset position on the equipment foundation with fasteners. The method for vertically supporting the main equipment of a nuclear power plant provided in this embodiment can use a truck crane to lift and temporarily fix each support component 7 to a temporary position. After multiple support components 7 are lifted and temporarily fixed to their temporary positions, a large crane is used to lift the multiple support components 7 as a whole to the preset position. In the entire lifting process, only one use of the large crane is needed to lift the multiple support components 7 as a whole to the preset position, which can reduce the number of times the large crane is used, improve the lifting efficiency, and reduce the lifting cost.

[0071] When the relative positions of multiple support members 7 meet the preset standards, all multiple support members 7 are in temporary positions.

[0072] Furthermore, step S0 is included before step S1;

[0073] Step S0: Draw lines on the hoisting site according to the design drawings to mark the temporary placement positions of multiple support components 7;

[0074] A work platform is erected, which is set up in a ring shape and surrounds the temporary positioning positions of multiple support components 7.

[0075] Specifically, during the hoisting process, the support component 7 is manually observed to see if it has been hoisted to the marked temporary positioning position. When the support component 7 is hoisted to the marked temporary positioning position, it is determined that the support component 7 has been hoisted to the temporary positioning position.

[0076] During the process of fine-tuning the relative positions of multiple support components 7, the multiple support components 7 are manually observed to see if they are hoisted to the marked line at the temporary positioning position. By fine-tuning the positions of multiple support components 7, the multiple support components 7 are temporarily fixed at the marked line at the temporary positioning position.

[0077] The working platform is set up outside the temporary positioning position of the support member 7. When any support member 7 is hoisted to the temporary positioning position, the support member 7 contacts the annular inner wall of the working platform. The support member 7 can lean against the annular inner wall of the working platform so that the working platform can temporarily fix the support member 7. In addition, a connector can be set on the annular inner wall of the working platform. The connector is detachably connected to the support member 7 to better temporarily fix the support member 7.

[0078] In this embodiment, there are four support members 7, and the working platform is a rectangular ring. The four support members 7 are respectively distributed at the four corners of the rectangular ring working platform.

[0079] Furthermore, step S6 is included between step S4 and step S5; step S6: use a truck crane to install fasteners on the base plate of support 7.

[0080] Using a truck crane, fasteners are pre-installed on the base plate of the support component 7. In subsequent steps, after the multiple support components 7 are hoisted to the preset position as a whole, the pre-installed fasteners are tightened to fix the multiple support components 7 to the equipment foundation.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for vertically supporting and hoisting a main nuclear power plant equipment as a whole, characterized in that, The main equipment of the nuclear power plant is lifted using a vertical support hoisting device, which includes a hoisting assembly and a positioning assembly. The hoisting assembly includes a lifting beam, a first sling, and a second sling; There are multiple first slings, and each of the multiple first slings is detachably connected to the upper surface of the lifting beam, and the multiple first slings are evenly spaced along the circumference of the lifting beam; There are multiple second slings, each of which is detachably connected to the lower surface of the lifting beam, and the multiple second slings are evenly spaced along the circumference of the lifting beam; each second sling is provided with a first loop at its bottom, and the multiple first loops are used to detachably engage with multiple support members one by one; The positioning assembly includes multiple positioning rods; two adjacent support members are detachably connected via the positioning rods. Includes the following steps: Step S1: Install a first clamping ring on each support member and install a second sling on each first clamping ring; Step S2: Use a truck crane to lift the second sling on any of the supports, so that the support is flipped and erected, and then lifted to a temporary position; temporarily fix the support in the temporary position. Step S3: Repeat step S2 to hoist and temporarily fix all the support components to their temporary positions; Step S4: Adjust the relative positions between multiple support components. After the relative positions between multiple support components meet the preset standard, connect the positioning rod between two adjacent support components. Step S5: Connect the top end of the second sling to the lower surface of the lifting beam, and connect the bottom end of the first sling to the upper surface of the lifting beam; use a large crane to connect with the first sling, and the large crane will lift the multiple support components as a whole to the preset position.

2. The method for vertically supporting and hoisting the main equipment of a nuclear power plant according to claim 1, characterized in that, Step S0 precedes step S1; Step S0: Draw lines on the hoisting site according to the design drawings to mark the temporary placement positions of multiple support components; A work platform is erected, which is set up in a ring shape and surrounds the temporary positioning positions of multiple support components.

3. The method for vertically supporting and hoisting the main equipment of a nuclear power plant according to claim 1, characterized in that, Step S6 is also included between step S4 and step S5; Step S6: Use a truck crane to install fasteners on the base plate of the support.

4. The method for vertically supporting and hoisting the main equipment of a nuclear power plant according to claim 1, characterized in that, The first ring includes a first semi-ring structure and a second semi-ring structure; The first semi-ring structure and the second semi-ring structure are fastened together to form a ring structure, and the first semi-ring structure and the second semi-ring structure are detachably connected by fasteners.

5. The method for vertically supporting and hoisting the main equipment of a nuclear power plant according to claim 1, characterized in that, The hoisting assembly also includes a first isolation member, which is disposed between the first clamping ring and the support member.

6. The method for vertically supporting and hoisting the main equipment of a nuclear power plant according to claim 1, characterized in that, The positioning rod is provided with a second retaining ring at each end, and the second retaining ring is used to detachably connect with the support member.

7. The method for vertically supporting and hoisting the main equipment of a nuclear power plant according to claim 6, characterized in that, The second ring includes a third semi-ring structure and a fourth semi-ring structure; The third semi-ring structure and the fourth semi-ring structure are fastened together to form a ring structure, and the third semi-ring structure and the fourth semi-ring structure are detachably connected by fasteners.

8. The method for vertically supporting and hoisting the main equipment of a nuclear power plant according to claim 1, characterized in that, The positioning rod is a telescopic rod.

9. The method for vertically supporting and hoisting the main equipment of a nuclear power plant according to claim 8, characterized in that, The positioning rod includes a first rod body and a second rod body, the first rod body is sleeved on the second rod body, and the first rod body and the second rod body are threadedly connected.

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