A turning device for a steam-water separator reheater pipe system and its application method

Abstract

The present invention discloses a reversing device for a steam-water separator reheater piping system and its application method. The device comprises a tube sheet support and several pipeline supports, wherein the tube sheet support comprises a lower tube sheet support and an upper tube sheet support, and the pipeline supports comprise a lower pipeline support and an upper pipeline support; a connector comprising a lower connector and an upper connector, wherein the lower connector connects the lower tube sheet support and the several lower pipeline supports to form a lower frame, and the upper connector connects the upper tube sheet support and the several upper pipeline supports to form an upper frame. The lower frame and the upper frame are interlocked and confine the steam-water separator reheater piping system between the lower frame and the upper frame, the lower tube sheet support and the upper tube sheet support are assembled and connected to form a circular first rotating support component, and the lower pipeline support and the upper pipeline support are assembled and connected to form a circular second rotating support component. The device can meet the needs of different products and solve different types of piping system reversal in third-generation nuclear power steam-water separator reheaters using a set of piping system reversing devices.

Description

Technical Field

[0001] The present invention is used in the field of steam-water separator reheaters, and particularly relates to a turning device for a steam-water separator reheater pipe system and an application method thereof. Background Art

[0002] During the welding process of nuclear power plant steam-water separator reheater piping and plenum heads, the piping needs to be flipped to meet welding process requirements. In second-generation and a half nuclear power plants, the piping is over 10 meters long, and the steam chamber weighs 3 tons. In third-generation nuclear power plants, the piping is extended to over 20 meters, weighing nearly 70 tons, and the steam chamber weighs 10 tons. This not only increases the size of the tubesheet and plenum head, but also significantly changes the piping structure. Due to the diverse types of third-generation nuclear power piping (such as ACP1000, AP1000, and ACP1400), a single-function piping flip device is no longer able to adapt to these changes.

[0003] If a turnover device is manufactured according to a project's steam-water separator reheater, it is necessary to manufacture turnover devices of various structures, which not only wastes funds but also occupies a large amount of production space. Summary of the Invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a reversal device for the piping system of a steam-water separator reheater and an application method thereof, which can meet the needs of different products and solve the reversal of different types of piping systems in the third-generation nuclear power steam-water separator reheater by using a set of piping system reversal.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] In the first aspect, a reversing device for a steam-water separator reheater pipe system comprises:

[0007] Tube sheet supports and several pipeline supports, the tube sheet supports and several pipeline supports are spaced apart along the length direction of the steam-water separator reheater pipe system, the tube sheet supports include a lower tube sheet support and an upper tube sheet support, and the pipeline supports include a lower pipeline support and an upper pipeline support;

[0008] Connectors, including lower connectors and upper connectors, wherein the lower connector connects the lower tube sheet support and a plurality of lower pipeline supports to form a lower frame, and the upper connector connects the upper tube sheet support and a plurality of upper pipeline supports to form an upper frame;

[0009] The lower frame and the upper frame are buckled together, and the steam-water separator reheater pipe system is confined between the lower frame and the upper frame. The lower tube sheet support and the upper tube sheet support are assembled and connected to form a circular first rotating support component, and the lower pipeline support and the upper pipeline support are assembled and connected to form a circular second rotating support component.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the first rotating support component has an outer roller and an inner roller, the axes of the outer roller and the inner roller coincide, the inner roller is sleeved with the tube sheet of the steam-water separator reheater pipe system, and a plurality of centering screws are provided along the circumference of the inner roller.

[0011] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, a first spacing block is provided between the lower tube sheet support and the upper tube sheet support, and a second spacing block is provided between the lower pipeline support and the upper pipeline support.

[0012] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, a transverse limiting component is further included, which connects the tube sheet support and several pipeline supports in sequence, and limits the left and right positions of the steam-water separation reheater pipe system between the lower frame and the upper frame.

[0013] In combination with the first aspect and the above-mentioned implementations, in certain implementations of the first aspect, the connecting member is connected to the tube sheet support and the pipeline support by bolts, the transverse limiting component is connected to the tube sheet support and the pipeline support by bolts, and the lower frame is connected to the upper frame by bolts.

[0014] In combination with the first aspect and the above implementations, in some implementations of the first aspect, the method further includes

[0015] Limit brake blocks are placed on the left and right sides of the bottom of the tube sheet support and / or pipeline support.

[0016] In combination with the first aspect and the above implementations, in some implementations of the first aspect, the radii of the first rotation support component and the second rotation support component are the same.

[0017] In a second aspect, a method for applying a reversing device for a steam-water separator reheater pipe system comprises the following steps:

[0018] S10. Connecting the lower tube sheet support and several lower pipeline supports through the lower connector to form a lower frame, and connecting the upper tube sheet support and several upper pipeline supports through the upper connector to form an upper frame;

[0019] S20. Hoist the water separator reheater piping system into the lower frame, hoist the upper frame onto the water separator reheater piping system, interlock it with the lower frame, and confine the water separator reheater piping system between the lower frame and the upper frame, connecting the lower frame and the upper frame.

[0020] S30. The lower tube sheet support and the upper tube sheet support are assembled and connected to form a circular first rotating support component, and the lower pipeline support and the upper pipeline support are assembled and connected to form a circular second rotating support component, and the first rotating support component and the second rotating support component are used as rotating supports to flip the steam-water separator reheater pipe system.

[0021] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes

[0022] Step S21. Adjust the position of the tube sheet of the steam-water separator reheater pipe system between the lower tube sheet support and the upper tube sheet support so that the tube sheet of the steam-water separator reheater pipe system coincides with the center of the first rotating support component.

[0023] In combination with the second aspect and the above implementations, in some implementations of the second aspect, the further

[0024] Step S22: Adjust the position of the piping system of the steam-water separator reheater between the lower pipeline support and the upper pipeline support so that the piping system of the steam-water separator reheater coincides with the center of the second rotating support component.

[0025] One of the above technical solutions has at least one of the following advantages or beneficial effects: the technical solution adopts a modular design, which can flexibly set the number of pipeline supports and connectors according to the different lengths of the products, and assemble them into a compression structure that meets their requirements. That is, according to the size and lifting position of the product to be flipped, a separate vertical compression structure is adopted to meet the flipping requirements of different products, and a set of pipe system flipping is used to solve the flipping of different types of pipe systems in the third-generation nuclear power steam-water separation reheater.

[0026] At the same time, due to the addition of tube sheets and transition cylinders in the third-generation nuclear power steam-water separation reheater project, the center of gravity of the entire pipe system moved toward the tube sheets, which increased the tube sheet support in the structure and increased the stability of the pipe system flipping.

[0027] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0029] Figure 1 1 is a schematic structural diagram of an embodiment of the turning device of the present invention;

[0030] Figure 2 yes Figure 1 A front view of the tube sheet support and tube sheet matching structure in one embodiment is shown;

[0031] Figure 3 yes Figure 1 A side view of the tube sheet support and tube sheet matching structure in one embodiment is shown;

[0032] Figure 4 yes Figure 1 A front view of the pipeline support and piping system coordination structure in one embodiment is shown;

[0033] Figure 5 yes Figure 1 A side view of the pipeline support and piping coordination structure in one embodiment is shown. DETAILED DESCRIPTION

[0034] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0035] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0036] In the present invention, "several" means one or more, "multiple" means more than two, "greater than," "less than," "exceeds," etc. are understood to exclude the number itself; "above," "below," "within," etc. are understood to include the number itself. In the description of the present invention, the use of "first" or "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0037] In the present invention, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection or electrical connection or mutual communication; and internal connection between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] in, Figure 1 、 Figure 3 and Figure 5 The reference direction coordinate system of the embodiment of the present invention is given below. Figure 1 、 Figure 3 and Figure 5 The embodiment of the present invention is described with reference to the direction shown.

[0039] See also Figure 1 The steam-water separator reheater piping system includes a piping system 11, a tube sheet 12 and a head 13. The piping system 11, the tube sheet 12 and the head 13 are pre-welded into a whole, and then placed on the turning device, and further turned over with the help of the turning device to achieve the requirements of the welding process.

[0040] First, see Figure 1 The embodiment of the present invention provides a turning device for a steam-water separator reheater pipe system, comprising a tube sheet support 2, a plurality of pipeline supports 3 and a connector 4. The tube sheet support 2 and the plurality of pipeline supports 3 are spaced apart along the length direction of the steam-water separator reheater pipe system. The tube sheet support 2 and the plurality of pipeline supports 3 provide turning support for the steam-water separator reheater pipe system. One or more pipeline supports 3 are provided according to the length of the product, for example, Figure 1 In the illustrated embodiment, the pipeline support 3 includes two middle supports and one rear support.

[0041] Since the tube sheet 12 and transition cylinder are added in the third generation nuclear power steam-water separator reheater project, the center of gravity of the entire tube system 11 moves toward the tube sheet 12. In this embodiment of the present invention, a tube sheet support 2 is added to the structure. Figure 1 The tube sheet support 2 is located at the front end of the pipe system 11 and is used to support the weight of the front end of the pipe system 11.

[0042] See also Figure 3 The tube sheet support 2 includes a lower tube sheet support 21 and an upper tube sheet support 22, see Figure 5The pipeline support 3 comprises a lower pipeline support 31 and an upper pipeline support 32. Both the tube sheet support 2 and the pipeline support 3 are detachable, facilitating the removal and placement of the piping system 11. The lower tube sheet support 21 and the upper tube sheet support 22 each have grooves that mate with the piping system 11. When the lower tube sheet support 21 and the upper tube sheet support 22 are assembled, the grooves interlock to form a space defining the piping system 11. Similarly, the lower pipeline support 31 and the upper pipeline support 32 of the pipeline support 3 have similar structures.

[0043] See also Figure 1 、 Figure 3 、 Figure 5 The connector 4 includes a lower connector 41 and an upper connector 42. The lower connector 41 connects the lower tube sheet support 21 and several lower pipeline supports 31 to form a lower frame, while the upper connector 42 connects the upper tube sheet support 22 and several upper pipeline supports 32 to form an upper frame. The lower frame and the upper frame interlock together, confining the steam-water separator reheater piping system between the lower and upper frames. The lower tube sheet support 21 and the upper tube sheet support 22 are assembled and connected to form a circular first rotating support component, while the lower pipeline support 31 and the upper pipeline support 32 are assembled and connected to form a circular second rotating support component. While serving as a connection, the connector 4 also provides vertical positioning for the piping system 11, ensuring uniform and stable rotation.

[0044] This technical solution adopts a modular design. It can flexibly set the number of pipeline supports 3 and connectors 4 according to the different lengths of the products and assemble them into a clamping structure that meets their requirements. That is, according to the size and lifting position of the product to be flipped, a separate vertical clamping structure is adopted to meet the flipping requirements of different products. The flipping of different types of pipe systems 11 in the third-generation nuclear power steam-water separation reheater is solved by using a set of pipe systems 11 flipping.

[0045] At the same time, due to the addition of tube sheets 12 and transition cylinders in the third-generation nuclear power steam-water separator reheater project, the center of gravity of the entire pipe system 11 moves toward the tube sheet 12, and a tube sheet support 2 is added to the structure, thereby increasing the stability of the pipe system 11 when flipping.

[0046] In some embodiments, see Figure 2 、 Figure 3 The first rotating support component has an outer roller 23 and an inner roller 24. The outer roller 23 provides a rolling surface for flipping. The axes of the outer roller 23 and the inner roller 24 coincide. The inner roller 24 is sleeved with the tube sheet 12 of the steam-water separator reheater pipe system. A plurality of centering screws 25 are provided along the circumference of the inner roller 24. By adjusting the centering screws 25, the center of the tube sheet 12 can be quickly aligned with the center of the first rotating support component, so that the pipe system 11 can rotate evenly during the flipping process.

[0047] See also Figure 3 、 Figure 5 A first spacing block 26 is provided between the lower tube sheet support 21 and the upper tube sheet support 22, and a second spacing block 33 is provided between the lower pipeline support 31 and the upper pipeline support 32. The first spacing block 26 adjusts the distance between the lower tube sheet support 21 and the upper tube sheet support 22 after they are connected, while the second spacing block 33 adjusts the distance between the lower pipeline support 31 and the upper pipeline support 32 after they are connected, to meet the clamping requirements of products of different models and sizes.

[0048] In some embodiments, the turning device of the embodiment of the present invention further includes a transverse limiting component 5, which connects the tube sheet support 2 and the plurality of pipeline supports 3 in sequence and limits the left and right positions of the steam-water separator reheater pipe system between the lower frame and the upper frame, for example, Figure 1 In the embodiment shown, the transverse limiting components 5 are respectively connected to the tube sheet support 2, the middle support and the rear support to limit the horizontal direction of the steam-water separator reheater pipe system so that the pipe system 11 can rotate evenly during the flipping process.

[0049] The connector 4 is detachably connected to the tube sheet support 2 and the pipeline support 3, the transverse limiting component 5 is detachably connected to the tube sheet support 2 and the pipeline support 3, and the lower frame and the upper frame are detachably connected, i.e., the lower frame and the upper frame are detachably connected, i.e., the lower frame and the upper frame are detachably connected, so that the piping system 11 can be disassembled and assembled before and after flipping. The detachable connection structure can adopt buckles, bolts, etc. For example, in some embodiments, the connector 4 is bolted to the tube sheet support 2 and the pipeline support 3, the transverse limiting component 5 is bolted to the tube sheet support 2 and the pipeline support 3, and the lower frame and the upper frame are bolted, which facilitates disassembly while providing stable support.

[0050] In some embodiments, see Figure 3 The turning device of the embodiment of the present invention further includes a limit brake block 6, which is placed on the left and right sides of the bottom of the tube sheet support 2 and / or the pipeline support 3. The limit brake block 6 can obtain friction by applying extrusion to limit the rotation of the pipe system 11, so as to meet the welding requirements in various orientations. That is, when the turning device is rotated to a certain angle, it is limited and fixed by the limit brake blocks 6 on both sides so that the pipe system 11 can be welded.

[0051] The first rotation support member and the second rotation support member serve as the rotation support of the entire turning device, and when in use, they are placed on the ground or on a roller frame. Figure 1 The radius of the first rotating support component and the second rotating support component is the same. On the one hand, the rolling support of the entire flip device can be achieved through a flat support surface. On the other hand, support components with the same radius are easier to realize modular design and manufacturing, and assembly and installation are more convenient.

[0052] Second, see Figure 1In combination with the turning device of the first aspect, an embodiment of the present invention provides an application method of the turning device for a steam-water separator reheater pipe system, comprising the following steps:

[0053] S10. The lower tube sheet support 21 and the plurality of lower pipeline supports 31 are connected by the lower connector 41 to form a lower frame. Similarly, the upper tube sheet support 22 and the plurality of upper pipeline supports 32 are connected by the upper connector 42 to form an upper frame.

[0054] S20. Use the piping system 11 lifting beam to lift the steam-water separator reheater piping into the lower frame. Use the piping system 11 lifting beam to lift the upper frame onto the steam-water separator reheater piping. Fasten the upper frame to the lower frame, confining the steam-water separator reheater piping between the lower and upper frames. Connect the lower and upper frames.

[0055] S30. The lower tube sheet support 21 and the upper tube sheet support 22 are assembled and connected to form a circular first rotating support component, and the lower pipeline support 31 and the upper pipeline support 32 are assembled and connected to form a circular second rotating support component. The first rotating support component and the second rotating support component are used as rotating supports to flip the steam-water separator reheater pipe system.

[0056] In some implementations of the second aspect, further comprising

[0057] Step S21. Adjust the position of the tube sheet 12 of the steam-water separator reheater piping system between the lower tube sheet support 21 and the upper tube sheet support 22 so that the tube sheet 12 of the steam-water separator reheater piping system coincides with the center of the first rotation support component. Adjust and center the position of the tube sheet 12 of the steam-water separator reheater piping system so that the piping system 11 can rotate evenly during the flipping process.

[0058] Step S22: Adjust the position of the separator reheater piping system 11 between the lower piping support 31 and the upper piping support 32 so that the separator reheater piping system 11 is aligned with the center of the second rotation support member. Limit the horizontal position of the separator reheater piping system to ensure uniform rotation of the piping system 11 during the rotation process.

[0059] The embodiment of the present invention adopts a separate vertical pressing structure and an adjustable horizontal fixing device to achieve different flip welding on a set of devices according to the size and lifting position of the product to be flipped.

[0060] Throughout this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0061] Of course, the invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A turning device for a steam-water separator reheater pipe system, characterized in that: include Tube sheet supports and several pipeline supports, the tube sheet supports and several pipeline supports are spaced apart along the length direction of the steam-water separator reheater pipe system, the tube sheet supports include a lower tube sheet support and an upper tube sheet support, and the pipeline supports include a lower pipeline support and an upper pipeline support; Connectors, including lower connectors and upper connectors, wherein the lower connector connects the lower tube sheet support and a plurality of lower pipeline supports to form a lower frame, and the upper connector connects the upper tube sheet support and a plurality of upper pipeline supports to form an upper frame; The lower frame and the upper frame are buckled together, and the steam-water separator reheater pipe system is confined between the lower frame and the upper frame. The lower tube sheet support and the upper tube sheet support are assembled and connected to form a circular first rotating support component. The lower pipeline support and the upper pipeline support are assembled and connected to form a circular second rotating support component. The first rotating support component comprises an outer drum and an inner drum, the axes of the outer drum and the inner drum coincide with each other, the inner drum is sleeved with the tube sheet of the steam-water separator reheater pipe system, and a plurality of centering screws are provided along the circumference of the inner drum; It also includes a transverse limiting component, which connects the tube sheet support and several pipeline supports in sequence, and limits the left and right positions of the steam-water separation reheater pipe system between the lower frame and the upper frame. The connecting piece is connected to the tube sheet support and the pipeline support by bolts, the transverse limiting component is connected to the tube sheet support and the pipeline support by bolts, and the lower frame is connected to the upper frame by bolts.

2. The turning device for the steam-water separator reheater piping system according to claim 1, characterized in that: A first spacing block is provided between the lower tube sheet support and the upper tube sheet support, and a second spacing block is provided between the lower pipeline support and the upper pipeline support.

3. The turning device for the steam-water separator reheater piping system according to claim 1, characterized in that: Also includes Limit brake blocks are placed on the left and right sides of the bottom of the tube sheet support and / or pipeline support.

4. The turning device for the steam-water separator reheater piping system according to claim 1, characterized in that: The first rotation support member and the second rotation support member have the same radius.

5. The application method of the turning device for the steam-water separator reheater piping according to any one of claims 1 to 4, characterized in that: The following steps are involved: S10. Connecting the lower tube sheet support and several lower pipeline supports through the lower connector to form a lower frame, and connecting the upper tube sheet support and several upper pipeline supports through the upper connector to form an upper frame; S20. Hoist the water separator reheater piping system into the lower frame. Hoist the upper frame onto the water separator reheater piping system, interlocking it with the lower frame. Confine the water separator reheater piping system between the lower frame and the upper frame, and connect the lower and upper frames. S30. The lower tube sheet support and the upper tube sheet support are assembled and connected to form a circular first rotating support component, and the lower pipeline support and the upper pipeline support are assembled and connected to form a circular second rotating support component, and the first rotating support component and the second rotating support component are used as rotating supports to flip the steam-water separator reheater pipe system.

6. The application method of the turning device for the steam-water separator reheater piping according to claim 5 is characterized in that: Also includes Step S21. Adjust the position of the tube sheet of the steam-water separator reheater pipe system between the lower tube sheet support and the upper tube sheet support so that the tube sheet of the steam-water separator reheater pipe system coincides with the center of the first rotating support component.

7. The application method of the reversing device for the steam-water separator reheater piping according to claim 6 is characterized in that: Also includes Step S22: Adjust the position of the water separator reheater piping between the lower and upper piping supports so that the water separator reheater piping coincides with the center of the second rotating support member.

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