Sealing ring transfer device

Abstract

The utility model belongs to the technical field of nuclear power equipment, and particularly relates to a sealing ring transfer device which comprises a loading mechanism and a plurality of hoisting mechanisms. The loading mechanism comprises an annular loading piece and an annular covering piece, the annular loading piece is provided with an annular groove extending in the circumferential direction, the annular groove is used for loading one or more sets of sealing rings, and the annular covering piece covers a groove opening of the annular groove; the multiple hoisting mechanisms are evenly arranged in the circumferential direction of the annular loading piece at intervals. Wherein each hoisting mechanism comprises a bearing piece, a cover plate and a hoisting piece fixedly connected with the cover plate, the bearing piece is provided with a mounting groove, the annular loading piece and the annular covering piece are located in the mounting groove, and the cover plate is connected with the bearing piece so as to prevent the annular loading piece and the annular covering piece from being separated from the mounting groove; and the hoisting piece is provided with the hoisting hole, so that the transfer frequency of the sealing ring can be reduced, the transfer efficiency is improved, and potential safety hazards and hoisting risks of hoisting are reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of nuclear power equipment, and in particular relates to a sealing ring transport device. Background Art

[0002] The reactor pressure vessel includes a body and a top cover on the body. The top cover and the body are usually sealed by a set of sealing rings. The set of sealing rings includes two inner and outer sealing rings. The sealing rings have high compression deformation and resilience, which can meet the sealing requirements of the reactor pressure vessel. During the overhaul of the unit, the reactor pressure vessel is opened, and the top cover of the reactor pressure vessel is hoisted out to the annular storage rack in the top cover storage room, which paves the way for the subsequent closing of the cover.

[0003] In order to ensure the sealing performance of the reactor pressure vessel after closing the cover, a set of sealing rings needs to be replaced before closing the cover. During the replacement of the sealing rings, in order to avoid uncontrollable factors such as human error, sealing ring quality, etc., it is usually necessary to prepare one or more sets of sealing rings as spares.

[0004] During the transportation of the sealing rings, the sealing rings are taken out of the warehouse and transported to the reactor pressure vessel building, and are hoisted to the annular storage rack in the top cover storage room by hoisting equipment. However, in the actual hoisting process, when the reactor building ring hoist is used to hoist the sealing rings, there is a lack of special hoists, the center of gravity of the suspended sealing rings is unstable, and the hoisted part is not firm, posing a safety hazard of equipment damage and a high risk factor. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a sealing ring transfer device, including but not limited to solving the potential safety hazard and high risk factor of equipment damage in the sealing ring lifting in the related art.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: the sealing ring transfer device includes a loading mechanism and a plurality of lifting mechanisms; the loading mechanism includes an annular loading member and an annular covering member, the annular loading member has an annular groove extending along the circumferential direction, the annular groove is used to load one or more sets of sealing rings, and the annular covering member covers the notch of the annular groove; the plurality of lifting mechanisms are evenly spaced along the circumference of the annular loading member; wherein each lifting mechanism includes a supporting member, a cover plate and a lifting member fixedly connected to the cover plate, the supporting member is provided with an installation groove, the annular loading member and the annular covering member are located in the installation groove, the cover plate is connected to the supporting member to prevent the annular loading member and the annular covering member from escaping from the installation groove; the lifting member has a lifting hole.

[0007] Optionally, the cover plate is connected to a plurality of supporting members, and the plurality of supporting members are arranged at intervals along the circumference of the annular loading member.

[0008] Optionally, the lifting member is a lifting lug.

[0009] Optionally, the annular groove can accommodate three or four or more sets of sealing rings, and the multiple sets of sealing rings are arranged along the axial direction of the annular loading member.

[0010] Optionally, a set of sealing rings includes an inner sealing ring and an outer sealing ring; the annular cover includes a partition, which is inserted into the annular groove and divides the annular groove into an inner annular sub-groove and an outer annular sub-groove, the inner annular sub-groove is used to load the inner sealing ring, and the outer annular sub-groove is used to load the outer sealing ring.

[0011] Optionally, the annular covering member also includes a plate body and a first claw portion and a second claw portion arranged on the same side of the plate body, the opposite sides of the plate body are respectively connected to the first claw portion and the second claw portion, the annular loading member is at least provided with an annular groove whose end portion of the notch is located between the first claw portion and the second claw portion, the first claw portion abuts against the inner wall surface of the annular loading member, and the second claw portion abuts against the outer wall surface of the annular loading member.

[0012] Optionally, the first claw portion is provided with a first matching groove, and the inner wall surface of the annular loading member abuts against the groove wall surface of the first matching groove; and / or, the second claw portion is provided with a second matching groove, and the outer wall surface of the annular loading member abuts against the groove wall surface of the second matching groove.

[0013] Optionally, the annular cover member is interference fit with the mounting groove.

[0014] Optionally, the annular loading member includes a plurality of arcuate loading parts, the plurality of arcuate loading parts are provided with arcuate groove segments, the plurality of arcuate loading parts are sequentially connected end to end, the plurality of arcuate groove segments are sequentially connected to form an annular groove; and / or, the annular covering member includes a plurality of arcuate covering parts, the plurality of arcuate covering parts are sequentially distributed along the circumference of the annular loading member and close the notch of the annular groove.

[0015] Optionally, the annular covering member is a polyurethane member.

[0016] The above one or more technical solutions in the sealing ring transfer device provided by the utility model have at least one of the following technical effects: in the process of transfer, the annular groove of the sealing ring transfer device can load one or more sets of sealing rings at a time according to needs, so as to reduce the number of transfers and improve the transfer efficiency; the sealing ring transfer device has multiple lifting mechanisms, and the multiple lifting mechanisms are evenly spaced along the circumference of the loading mechanism. The lifting mechanism includes a supporting member, a cover plate and a lifting member. The annular loading member and the annular covering member are located in the installation groove of the supporting member. The cover plate is connected to the supporting member to prevent the annular loading member and the annular covering member from falling out of the installation groove. The lifting member has a lifting hole; in this way, during the lifting process of the sealing ring, one On the one hand, the lifting equipment's slings, hooks and other components can be directly used to pass through the lifting holes for lifting. The lifting is stable and reliable, and there is no need to set up special lifting equipment or tools, making the lifting more convenient. On the second hand, multiple lifting mechanisms are evenly spaced along the circumference of the loading mechanism, so that the supporting parts of multiple lifting mechanisms can stably lift the annular loading parts, the lifting reliability is good, the sealing ring is evenly stressed, and the center of gravity of the sealing ring is stable, which is beneficial to reducing the safety hazards and risks of lifting. In addition, the sealing ring is encapsulated in an annular groove formed by the annular loading part and the annular covering part of the loading mechanism, which can reduce the damage to the sealing ring by external parts and improve the transportation safety and process stability of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the structure of the sealing ring transfer device in a hoisting state provided in some embodiments of the present application.

[0019] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0020] Figure 3 for Figure 1 Schematic diagram of the structure of the sealing ring transfer device shown in .

[0021] Figure 4 For along Figure 3 Sectional view along the midline BB.

[0022] Figure 5 for Figure 2 The structural schematic diagram of the lifting mechanism is shown in FIG.

[0023] Figure 6 for Figure 5 A partial cross-sectional view of the lifting mechanism shown in FIG.

[0024] Figure 7 A schematic structural diagram of an arc-shaped loading portion provided in some embodiments of the present application.

[0025] Figure 8 A schematic structural diagram of an arc-shaped covering portion provided in some embodiments of the present application.

[0026] Fig. 9 The loading mechanism provided in some embodiments of the present application is Figure 3 Sectional view along the midline BB.

[0027] Among them, the reference numerals in the figure are:

[0028] 100. Sealing ring transfer device; 10. Loading mechanism; 11. Ring-shaped loading member; 11a. Arc-shaped loading portion; 111. Ring-shaped groove; 111a. Arc-shaped groove segment; 1111. Inner ring-shaped sub-groove; 1112. Outer ring-shaped sub-groove; 12. Ring-shaped covering member; 12a. Arc-shaped covering portion; 121. Partition portion; 122. Plate body portion; 123. First clamping claw portion; 1231. First matching groove; 124. Second clamping claw portion; 1241. Second matching groove; 20. Lifting mechanism; 21. Supporting member; 211. Mounting groove; 22. Cover plate; 23. Lifting member; 231. Lifting hole; 24. Bolt; 200. Sealing ring; 201. Inner sealing ring; 202. Outer sealing ring; 300. Lifting belt. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] 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.

[0031] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments in any suitable manner.

[0033] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0034] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces). "Several" means one or more than one, unless otherwise clearly and specifically defined.

[0035] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0036] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "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 be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. 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.

[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0038] During the actual transportation process of the sealing rings, multiple sets of sealing rings are taken out from the warehouse and stored in the AC building (radioactive machine repair workshop) by the AC building crane. After the island is opened, they are transported to the gantry of the reactor building by a special transport vehicle, and then the gantry crane lifts the multiple sets of sealing rings onto the nuclear island flatbed trolley, which is then transported to the reactor building by the flatbed trolley. Finally, the multiple sets of sealing rings are transported to the annular storage rack in the top cover storage room by the reactor building ring crane.

[0039] The sealing ring transfer device of the embodiment of the present application is used to load sealing rings to facilitate the transfer of sealing rings from a storage warehouse to a reactor building. The shape of the sealing ring can be adapted according to the shape of the top cover of the pressure vessel, wherein the shape of the sealing ring can be but is not limited to circular, polygonal, and elliptical. For the convenience of explanation, the embodiment of the present application is described with the shape of the sealing ring as a circle (i.e., an O-ring); it should be understood that the sealing ring transfer device of the embodiment of the present application can also be used for the transfer of sealing rings of polygonal, elliptical, and other shapes.

[0040] The following combination Figures 1 to 9 The sealing ring transfer device 100 according to the embodiment of the present application is described.

[0041] like Figures 1 to 4 As shown, in one embodiment of the present application, a sealing ring transfer device 100 is provided, which includes a loading mechanism 10 and a plurality of lifting mechanisms 20, the loading mechanism 10 includes an annular loading member 11 and an annular covering member 12, the annular loading member 11 has an annular groove 111 extending along the circumferential direction, the annular groove 111 is used to load one or more sets of sealing rings 200, and the annular covering member 12 covers the notch of the annular groove 111; the plurality of lifting mechanisms 20 are evenly spaced along the circumference of the annular loading member 11; wherein the lifting mechanism 20 includes a supporting member 21, a cover plate 22 and a lifting member 23 fixedly connected to the cover plate 22, the supporting member 21 is provided with a mounting groove 211, the annular loading member 11 and the annular covering member 12 are located in the mounting groove 211, the cover plate 22 is connected to the supporting member 21 to prevent the annular loading member 11 and the annular covering member 12 from escaping from the mounting groove 211; the lifting member 23 has a lifting hole 231.

[0042] The loading mechanism 10 is used to load the sealing ring 200 to protect the sealing ring 200 and improve the safety of the sealing ring 200 during transportation and storage. The loading mechanism 10 includes an annular loading member 11 and an annular covering member 12. The annular loading member 11 is provided with an annular groove 111, which extends along the circumference of the annular loading member 11. The annular groove 111 is used to accommodate the sealing ring 200. The annular covering member 12 covers the notch of the annular groove 111, so as to encapsulate the sealing ring 200 inside the loading mechanism 10. The shape of the annular groove 111, the shape of the annular loading member 11 and the shape of the annular covering member 12 can be the same or nearly the same as the shape of the sealing ring 200. The shape of the sealing ring 200 can be circular, polygonal, elliptical, etc., and the corresponding shape of the annular groove 111, the shape of the annular loading member 11 and the shape of the annular covering member 12 are circular, polygonal, elliptical, etc. Such a design can reduce material accumulation and reduce the manufacturing cost of the loading mechanism 10. The material of the annular loading member 11 and the material of the annular covering member 12 can be metal or plastic. Figure 3 The direction indicated by arrow M. Fig. 9 As shown, the width W of the annular carrier 11 is 1 Can be 90mm, height H 1 It can be 60mm.

[0043] A plurality of lifting mechanisms 20 are arranged at intervals along the circumference of the annular loading member 11, the lifting points of the sealing ring transfer device 100 are evenly distributed, the lifting center of gravity of the sealing ring transfer device 100 is stable, the lifting operation of the sealing ring 200 has a high safety factor, and there are few safety hazards. The number of the lifting mechanisms 20 is three, four, five, six, etc.; for example, the number of the lifting mechanisms 20 can be six.

[0044] The lifting mechanism 20 includes a supporting member 21, a cover plate 22 and a lifting member 23. The supporting member 21 may be a U-shaped structure. The internal space of the supporting member 21 forms a mounting groove 211. The annular loading member 11 and the annular covering member 12 are located in the mounting groove 211. The cover plate 22 is connected to the U-shaped opening side of the supporting member 21, that is, the notch of the mounting groove 211, thereby preventing the annular loading member 11 and the annular covering member 12 from escaping from the mounting groove 211, so as to fix the annular loading member 11 and the annular covering member 12 in the mounting groove 211; the lifting member 23 is fixedly connected to the cover plate 22, and the lifting member 23 has a lifting hole 231. In this way, in the process of lifting the lifting member 23, the sealing ring 200 located in the annular groove 111 can be lifted and moved to the annular storage rack. Each of the hanging mechanisms 20 may include a supporting member 21, a cover plate 22 and a hanging member 23, or some of the hanging mechanisms 20 may include a supporting member 21, a cover plate 22 and a hanging member 23. Figure 4 As shown, the length L of the supporting member 21 1Can be 135mm, height H 2 It can be 135mm.

[0045] The sealing ring transfer device 100 of the embodiment of the present application, when in use, puts the sealing ring 200 into the annular groove 111 of the annular loading member 11, and then covers the annular cover member 12 at the notch of the annular groove 111; then, puts the annular loading member 11 and the annular cover member 12 into the mounting groove 211 of the supporting member 21, and then, fixes the cover plate 22 on the supporting member 21 to fix the annular loading member 11 and the annular cover member 12 in the mounting groove 211, wherein the cover plate A lifting member 23 is fixedly connected to 22, so that the installation of a lifting mechanism 20 is completed. By analogy, multiple lifting mechanisms 20 are evenly spaced and installed on the loading mechanism 10 along the circumference of the annular loading member 11; in this way, the loading of the sealing ring 200 is realized; when the sealing ring 200 needs to be transported, the lifting belt 300 (for example: wire rope, etc.) and the hook of the lifting equipment can be directly connected through the lifting hole 231, so that the sealing ring transport device 100 can be lifted for transportation. The material of the supporting member 21, the material of the cover plate 22 and the material of the lifting member 23 can be metal, plastic, etc., such as: high-strength steel, mold steel, etc.

[0046] In the sealing ring transfer device 100 of the embodiment of the present application, during the transfer process, the annular groove 111 can load one or more sets of sealing rings 200 at a time as needed to reduce the number of transfers and improve the transfer efficiency; in addition, the sealing ring transfer device 100 has a plurality of lifting mechanisms 20, and the plurality of lifting mechanisms 20 are evenly spaced along the circumference of the loading mechanism 10, and the lifting mechanism 20 includes a supporting member 21, a cover plate 22 and a lifting member 23, the annular loading member 11 and the annular covering member 12 are located in the mounting groove 211 of the supporting member 21, the cover plate 22 is connected to the supporting member 21 to prevent the annular loading member 11 and the annular covering member 12 from escaping from the mounting groove 211, and the lifting member 23 has a lifting hole 231; in this way, during the lifting process of the sealing ring 200, on the one hand, the lifting mechanism 20 can be directly used The lifting belt 300, hook and other components of the loading equipment are lifted through the lifting hole 231. The lifting is stable and reliable, and there is no need to set up special lifting equipment or tools, so the lifting is more convenient. Secondly, multiple lifting mechanisms 20 are evenly spaced along the circumference of the loading mechanism 10, so that the supporting parts 21 of the multiple lifting mechanisms 20 can stably lift the annular loading part 11, the lifting reliability is good, the lifting force of the sealing ring 200 is uniform, and the center of gravity of the sealing ring 200 is stable, which is conducive to reducing the safety hazards and lifting risks of the lifting. In addition, the sealing ring 200 is encapsulated in the annular groove 111 formed by the annular loading part 11 and the annular covering part 12 of the loading mechanism 10, which can reduce the damage of the sealing ring 200 by external components and improve the transportation safety and process stability of the sealing ring 200.

[0047] The sealing ring transfer device 100 of the embodiment of the present application has a simple structure and is easy to assemble and disassemble.

[0048] In some embodiments, the annular covering member 12 is disposed close to the cover plate 22, so that the cover plate 22 and the annular covering member 12 can be removed to take out the sealing ring 200, which is easy to operate.

[0049] In another embodiment of the present application, see Figure 5 and Figure 6 As shown, the cover plate 22 is connected to a plurality of supporting members 21 , and the plurality of supporting members 21 are arranged at intervals along the circumference of the annular loading member 11 .

[0050] One cover plate 22 can be connected to two or more than three supporting members 21 .

[0051] By adopting the technical solution of this embodiment, a plurality of supporting members 21 can simultaneously support the annular loading member 11, and the hoisting mechanism 20 has good hoisting stability for the annular loading member 11, and the hoisting safety is better.

[0052] In some embodiments, see Figure 5 and Figure 6 As shown, a supporting member 21 is connected to the opposite sides of the cover plate 22, and the cover plate 22 is located between the two supporting members 21; the bolts 24 can pass through the side plates of the U-shaped supporting member 21 and be screwed to the cover plate 22, so that the four bolts 24 can be used to connect the connecting plate and the cover plate 22 tightly, and the structure of the lifting mechanism 20 is simple and easy to disassemble and assemble.

[0053] In another embodiment of the present application, see Figure 5 and Figure 6 As shown, the hanging member 23 is a hanging ear.

[0054] The lifting lug includes a lifting ring and a connecting rod, one side of the lifting ring is connected to one end of the connecting rod, the hole formed by the lifting ring is the lifting hole 231, and the connecting rod and the cover plate 22 can be connected by thread connection, welding, bonding, etc. The lifting lug can also be formed by bending a rod.

[0055] By adopting the technical solution of this embodiment, the hanging member 23 adopts the structural form of a hanging ear, which has a simple structure and the sealing ring transfer device 100 is easy to manufacture.

[0056] In the related art, the number of sealing rings 200 required is related to the type of overhaul of the unit. A conventional overhaul requires one set of sealing rings 200, a ten-year overhaul requires two sets of sealing rings 200, and a first overhaul requires three sets of sealing rings 200. However, in the related art, the sealing ring transfer device 100 provided has a storage space that can only accommodate two sets of sealing rings 200, so only two sets of sealing rings 200 are transferred each time. If the overhaul of the unit requires three sets of sealing rings 200, an additional transfer process is required, which affects the construction period and is inefficient, and cannot meet the demand for three sets of spare parts for the first overhaul of the unit.

[0057] In another embodiment of the present application, see Figure 4 As shown, the annular groove 111 can accommodate three or four or more sets of sealing rings 200 , and the multiple sets of sealing rings 200 are arranged along the axial direction of the annular loading member 11 .

[0058] Three or more sets of sealing rings 200 can be loaded into the annular groove 111 for transportation, for example: three sets of sealing rings 200, four sets of sealing rings 200, five sets of sealing rings 200, etc.

[0059] A plurality of sealing rings 200 are stacked and arranged along the axial direction of the annular loading member 11 of the device, so that a small space is required for placement and placement is convenient.

[0060] By adopting the technical solution of this embodiment, three sets of sealing rings 200 can be loaded and transported, which can meet the demand for three sets of sealing rings 200 for the first overhaul of the unit at one time. Compared with conventional overhaul, one sealing ring 200 transportation and transfer work is reduced, saving critical path time.

[0061] In another embodiment of the present application, see Figure 4 As shown, a set of sealing rings 200 includes an inner sealing ring 201 and an outer sealing ring 202; the annular cover 12 includes a partition 121, which is inserted into the annular groove 111 and divides the annular groove 111 into an inner annular sub-groove 1111 and an outer annular sub-groove 1112, the inner annular sub-groove 1111 is used to load the inner sealing ring 201, and the outer annular sub-groove 1112 is used to load the outer sealing ring 202.

[0062] A set of sealing rings 200 includes two sealing rings 200 with different radii, wherein the sealing ring 200 with a smaller radius is an inner sealing ring 201 , and the sealing ring 200 with a larger radius is an outer sealing ring 202 . The inner sealing ring 201 may be located inside the outer sealing ring 202 .

[0063] The annular cover 12 includes a partition 121, which may be annular. After the partition 121 is inserted into the annular groove 111, the annular groove 111 is divided into two inner and outer annular sub-grooves, wherein the inner annular sub-groove is the inner annular sub-groove 1111, and the outer annular sub-groove is the outer annular sub-groove 1112.

[0064] By adopting the technical solution of this embodiment, the inner sealing ring 201 is installed in the inner annular sub-groove 1111, and the outer sealing ring 202 is installed in the outer annular sub-groove 1112. The inner sealing ring 201 and the outer sealing ring 202 can be separated by the partition 121, thereby reducing the mutual collision between the inner sealing ring 201 and the outer sealing ring 202, reducing the damage to the sealing ring 200, and effectively reducing the risk of damage to the sealing ring 200 during lifting and maintenance.

[0065] In another embodiment of the present application, see Figure 4 As shown, the annular cover member 12 also includes a plate body 122 and a first claw portion 123 and a second claw portion 124 arranged on the same side of the plate body 122, and the opposite sides of the plate body 122 are respectively connected to the first claw portion 123 and the second claw portion 124, and the annular loading member 11 is at least provided with an annular groove 111. The end of the notch is located between the first claw portion 123 and the second claw portion 124, and the first claw portion 123 abuts against the inner wall surface of the annular loading member 11, and the second claw portion 124 abuts against the outer wall surface of the annular loading member 11.

[0066] The annular cover part 12 also includes a plate body 122, a first claw part 123 and a second claw part 124. The annular cover part 12 is buckled on the annular loading part 11. The plate body 122 is used to cover the notch of the annular groove 111. The first claw part 123 and the second claw part 124 are respectively located on the inner and outer sides of the annular loading part 11. The walls of the first claw part 123 and the second claw part 124 facing each other abut against the inner and outer walls of the annular loading part 11, which can limit the annular cover part 12, so that the annular cover part 12 can be stably covered on the annular loading part 11, thereby providing better protection for the sealing ring 200.

[0067] In some embodiments, see Fig. 9 As shown, the partition 121 is connected to the plate body 122, and the partition 121 is located between the first claw portion 123 and the second claw portion 124. The cross-section of the annular cover 12 is an E-shaped structure, which has a simple structure and is easy to manufacture. The partition 121, the first claw portion 123, the second claw portion 124 and the plate body 122 are formed into an integrated structure through an integral molding process such as injection molding or 3D printing, thereby reducing the production process and saving production costs. The width W of the annular cover 12 2 Can be 94mm, height H 3 The thickness h of the first claw portion 123 can be 82 mm. 1 and the thickness h of the second claw portion 124 2 The thickness h of the partition 121 may be 2 mm. 3 It can be 20mm.

[0068] In another embodiment of the present application, see Figure 4 As shown, the first claw portion 123 is provided with a first matching groove 1231, and the inner wall surface of the annular loading member 11 abuts against the groove wall surface of the first matching groove 1231; and / or, the second claw portion 124 is provided with a second matching groove 1241, and the outer wall surface of the annular loading member 11 abuts against the groove wall surface of the second matching groove 1241.

[0069] The first matching groove 1231 may refer to a structure recessed on the side of the first claw portion 123 facing the second claw portion 124. The first matching groove 1231 penetrates the end of the first claw portion 123 facing away from the plate body 122, and the groove wall of the first matching groove 1231 connected to the end surface of the first claw portion 123 facing away from the plate body 122 abuts against the inner wall surface of the annular loading member 11. The groove wall surface of the first matching groove 1231 facing away from the plate body 122 may also abut against the end surface of the annular loading member 11, thereby forming a shoulder abutment structure, so that the annular covering member 12 can be stably and reliably covered on the annular loading member 11.

[0070] The second matching groove 1241 may refer to a structure recessed on the side of the second claw portion 124 facing the first claw portion 123. The second matching groove 1241 penetrates the end of the first claw portion facing away from the plate body 122, and the groove wall of the second matching groove 1241 connected to the end surface of the second claw portion 124 facing away from the plate body 122 abuts against the outer wall surface of the annular loading member 11. The groove wall surface of the second matching groove 1241 facing away from the plate body 122 may also abut against the end surface of the annular loading member 11, thereby forming a shoulder abutment structure, so that the annular covering member 12 can be stably and reliably covered on the annular loading member 11.

[0071] In one possible embodiment, see Figure 4 As shown, the first claw portion 123 is provided with a first matching groove 1231, and the inner wall surface of the annular loading member 11 abuts against the groove wall surface of the first matching groove 1231. The first matching groove 1231 can reduce the thickness of the first claw portion 123, which is beneficial to reduce material accumulation, reduce manufacturing costs, and achieve lightweight design.

[0072] In another possible embodiment, see Figure 4 As shown, the second claw portion 124 is provided with a second matching groove 1241, and the outer wall surface of the annular loading member 11 abuts against the groove wall surface of the second matching groove 1241. The second matching groove 1241 can reduce the thickness of the second claw portion 124, which is beneficial to reduce material accumulation, reduce manufacturing costs, and achieve lightweight design.

[0073] In yet another possible embodiment, see Figure 4As shown, the first claw portion 123 is provided with a first matching groove 1231, and the inner wall surface of the annular loading member 11 abuts against the groove wall surface of the first matching groove 1231; the second claw portion 124 is provided with a second matching groove 1241, and the outer wall surface of the annular loading member 11 abuts against the groove wall surface of the second matching groove 1241. The first matching groove 1231 and the second matching groove 1241 can reduce the thickness of the first claw portion 123 and the second claw portion 124, which is beneficial to reduce material accumulation, reduce manufacturing costs, and achieve lightweight design.

[0074] In another embodiment of the present application, see Figure 4 As shown, the annular cover member 12 is interference fit with the mounting groove 211 .

[0075] Understandably, see Figure 4 As shown, the width of the annular cover member 12 is greater than the width of the mounting groove 211, so that the first claw portion 123 and the second claw portion 124 can fit tightly against the groove wall of the mounting groove 211, thereby achieving the fixation of the annular loading member 11 and the annular cover member 12 in the mounting groove 211.

[0076] By adopting the technical solution of this embodiment, the shaking of the annular loading member 11 and the annular covering member 12 in the installation groove 211 can be reduced, thereby improving the safety of the transportation of the sealing ring 200.

[0077] Of course, in some embodiments, the annular cover member 12 may also be loosely matched with the mounting groove 211 , which may be specifically set according to actual needs.

[0078] In another embodiment of the present application, see Figure 3 , Figure 7 and Figure 8 As shown, the annular loading member 11 includes a plurality of arcuate loading portions 11a, the plurality of arcuate loading portions 11a are provided with arcuate groove segments 111a, the plurality of arcuate loading portions 11a are sequentially connected end to end, the plurality of arcuate groove segments 111a are sequentially connected to form an annular groove 111; and / or, the annular covering member 12 includes a plurality of arcuate covering portions 12a, the plurality of arcuate covering portions 12a are sequentially distributed along the circumference of the annular loading member 11 and close the notch of the annular groove 111.

[0079] The annular loading part 11 is divided into multiple sections along the circumferential direction, each section is called an arc loading part 11a, and the shape of the annular loading part is an arc. Each arc loading part 11a is provided with an arc groove section 111a extending along the arc direction, and the arc groove section 111a runs through the arc loading part 11a. In this way, after the multiple arc loading parts 11a are spliced ​​end to end, the multiple arc groove sections 111a are also connected in sequence to form an annular groove 111. The lengths of different arc loading parts 11a are also the same or different; the annular loading part 11 is divided into two sections, three sections, four sections, five sections or more than six sections; for example: see Figure 3 and Figure 7 As shown, the annular loading member 11 is divided into six arc-shaped loading parts 11a by three dot-dash lines, and the arc lengths of the six arc-shaped loading parts 11a are the same, and the corresponding central angles α are also the same, that is, α = 60°. Two adjacent arc-shaped loading parts 11a can be connected by flanges, bolts 24, welding, bonding, etc.

[0080] The annular cover member 12 is divided into multiple sections along the circumference of the annular loading member 11, each section is called an arc-shaped cover portion 12a, and the shape of the arc-shaped cover portion 12a is an arc. A plurality of arc-shaped cover portions 12a are spliced ​​end to end to form an annular cover member 12, thereby closing the notch of the annular groove 111; the lengths of different arc-shaped cover portions 12a are the same or different; the annular cover member 12 is divided into two, three, four, five or more than six sections; for example: see Figure 3 and Figure 8 As shown, the annular covering member 12 is divided into 12 arc-shaped covering portions 12a by three dotted lines and three dashed lines. The arc lengths of the 12 arc-shaped covering portions 12a are the same, and their corresponding central angles β are also the same, that is, β=30°.

[0081] In one possible embodiment, see Figure 3 and Figure 7 As shown, the annular loading member 11 includes a plurality of arc-shaped loading portions 11a, the plurality of arc-shaped loading portions 11a are provided with arc-shaped groove segments 111a, the plurality of arc-shaped loading portions 11a are sequentially connected end to end, and the plurality of arc-shaped groove segments 111a are sequentially connected to form an annular groove 111; the annular loading member 11 is divided into a plurality of small-sized arc-shaped loading portions 11a, which can facilitate the storage and arrangement of the annular loading member 11.

[0082] In another possible embodiment, see Figure 3 and Figure 8 As shown, the annular cover 12 includes a plurality of arcuate cover portions 12a, which are sequentially distributed along the circumference of the annular loading member 11 and close the notch of the annular groove 111. The annular cover 12 is divided into a plurality of small-sized arcuate cover portions 12a, which can facilitate the storage and arrangement of the annular loading member 11.

[0083] In yet another possible embodiment, see Figure 3 and Figure 8As shown, the annular loading member 11 includes a plurality of arcuate loading portions 11a, and the plurality of arcuate loading portions 11a are provided with arcuate groove sections 111a, and the plurality of arcuate loading portions 11a are sequentially connected end to end, and the plurality of arcuate groove sections 111a are sequentially connected to form an annular groove 111; the annular covering member 12 includes a plurality of arcuate covering portions 12a, and the plurality of arcuate covering portions 12a are sequentially distributed along the circumference of the annular loading member 11 and close the notch of the annular groove 111, the annular loading member 11 is divided into a plurality of small-sized arcuate loading portions 11a, and the annular covering member 12 is divided into a plurality of small-sized arcuate covering portions 12a, which can facilitate the storage and arrangement of the annular loading member 11.

[0084] In another embodiment of the present application, the annular covering member 12 is a polyurethane member.

[0085] It is understandable that the annular cover member 12 is made of polyurethane.

[0086] By adopting the technical solution of this embodiment, since polyurethane has good stability, chemical resistance, resilience and mechanical properties, and has smaller compression deformation, damage to the sealing ring 200 can be reduced.

[0087] The following combination Figures 1 to 9 The use process of the sealing ring transfer device 100 shown is described as follows:

[0088] In the warehouse, the six arc-shaped loading parts 11a are assembled into an integral annular loading member 11, and the arc-shaped loading parts 11a are all on the same plane, so that the arc-shaped groove sections 111a can be well aligned and connected, which is convenient for placing three sets of sealing rings 200;

[0089] Next, the 12 arc-shaped covering parts 12a of the annular covering member 12 are sequentially connected to the top of the annular loading member 11 to close the notch of the annular groove 111, and the partition part 121 of the annular covering member 12 is inserted into the annular groove 111, and the first claw part 123 and the second claw part 124 of the annular covering member 12 are respectively abutted against the inner wall surface and the outer wall surface of the annular loading member 11, which can reduce the impact and wear of the sealing ring 200 during transportation; for example, refer to Fig. 9 The two arc-shaped covering parts 12a are covered and matched with the arc-shaped loading part 11a, and other covering methods can be used.

[0090] Next, along the circumference of the annular loading member 11, the six supporting members 21 of the lifting mechanisms 20 are evenly spaced and installed on the annular loading member 11, and then the six lifting ears are screwed onto the six cover plates 22. For each lifting mechanism 20, two supporting members 21 and the cover plates 22 are firmly connected with four bolts 24.

[0091] Next, use the 1T4m lifting belt 300 and the 2T shackle to use the lifting lug as a lifting point, connect the other end of the lifting belt 300 to the main hook of the crane, and lift the three sets of sealing rings 200 and the sealing ring transfer device 100 onto the special trolley;

[0092] Next, the entire sealing ring transport device 100 is wrapped with plastic cloth, and the sealing ring 200 is transported to the gantry, the flatbed trolley of the nuclear island, and the annular support in the storage room of the nuclear island plant roof by a special trolley in sequence;

[0093] Finally, when the reactor pressure vessel top cover is hoisted to the top cover storage room and the sealing ring 200 needs to be replaced, the six cover plates 22 of the device are opened, the 12 arc-shaped cover parts 12a are taken out, and the old sealing ring 200 is replaced with a new sealing ring 200. In this way, the storage, transportation and replacement of the sealing ring 200 are completed.

[0094] The sealing ring transfer device 100 provided in the embodiment of the present application can be used for the transportation and storage of reactor pressure vessel sealing rings 200, and can meet the requirements of reliable and safe storage of 3 sets of sealing rings 200, thereby improving work efficiency. During the disassembly and assembly process, the sealing ring 200 is protected and limited in the annular groove 111, thereby avoiding the risk of damage to the sealing ring 200 caused by human factors and accidental collision during work. The annular cover 12 can be provided with a partition 121 to support the sealing ring 200, which has no negative impact on on-site work and maintenance processes. The provided lifting ears can be used as lifting points, and the lifting points are evenly distributed around the annular loading part 11, so that the lifting of the sealing ring 200 is safer.

[0095] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A sealing ring transport device, characterized in that: include: The loading mechanism comprises an annular loading member and an annular covering member, wherein the annular loading member has an annular groove extending in the circumferential direction, the annular groove is used to load one or more sets of sealing rings, and the annular covering member covers the notch of the annular groove; as well as A plurality of lifting mechanisms are evenly spaced along the circumference of the annular loading member; Wherein, the hoisting mechanism comprises a supporting member, a cover plate and a hoisting member fixedly connected to the cover plate, the supporting member is provided with a mounting groove, the annular loading member and the annular covering member are located in the mounting groove, and the cover plate is connected to the supporting member to prevent the annular loading member and the annular covering member from escaping from the mounting groove; The hanging piece has a hanging hole.

2. The sealing ring transfer device according to claim 1, characterized in that: The cover plate is connected to a plurality of the supporting members, and the plurality of the supporting members are arranged at intervals along the circumference of the annular loading member.

3. The sealing ring transfer device according to claim 1, characterized in that: The lifting piece is a lifting lug.

4. The sealing ring transfer device according to any one of claims 1 to 3, characterized in that: The annular groove can accommodate three or four or more sets of sealing rings, and the multiple sets of sealing rings are arranged along the axial direction of the annular loading member.

5. The sealing ring transfer device according to any one of claims 1 to 3, characterized in that: A set of the sealing rings includes an inner sealing ring and an outer sealing ring; the annular cover includes a partition, which is inserted into the annular groove and divides the annular groove into an inner annular sub-groove and an outer annular sub-groove, the inner sealing ring is used to load the inner sealing ring, and the outer annular sub-groove is used to load the outer sealing ring.

6. The sealing ring transfer device according to any one of claims 1 to 3, characterized in that: The annular cover also includes a plate body and a first claw portion and a second claw portion arranged on the same side of the plate body, the opposite sides of the plate body are respectively connected to the first claw portion and the second claw portion, the annular loading component is at least provided with an end portion of the notch of the annular groove located between the first claw portion and the second claw portion, the first claw portion abuts against the inner wall surface of the annular loading component, and the second claw portion abuts against the outer wall surface of the annular loading component.

7. The sealing ring transfer device according to claim 6, characterized in that: The first claw portion is provided with a first matching groove, and the inner wall surface of the annular loading member abuts against the groove wall surface of the first matching groove; And / or, the second claw portion is provided with a second matching groove, and the outer wall surface of the annular loading member abuts against the groove wall surface of the second matching groove.

8. The sealing ring transfer device according to claim 6, characterized in that: The annular cover member is interference-fitted with the mounting groove.

9. The sealing ring transfer device according to any one of claims 1 to 3, characterized in that: The annular loading member comprises a plurality of arc-shaped loading parts, the plurality of arc-shaped loading parts are provided with arc-shaped groove sections, the plurality of arc-shaped loading parts are sequentially connected end to end, and the plurality of arc-shaped groove sections are sequentially connected to form the annular groove; And / or, the annular covering member includes a plurality of arc-shaped covering portions, and the plurality of arc-shaped covering portions are sequentially distributed along the circumference of the annular loading member and close the notches of the annular groove.

10. The sealing ring transfer device according to any one of claims 1 to 3, characterized in that: The annular covering member is a polyurethane member.

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