A high-energy pipeline rupture protection device for a nuclear power plant

Abstract

The present invention provides a device for protecting a high-energy pipeline from rupture in a nuclear power plant. The protection device comprises: a wrapping assembly, a base, a support member, and a fastening assembly; the wrapping assembly wraps the high-energy pipeline; the base is arranged on the high-energy side; the support member is arranged between the base and the wrapping assembly, and one end of the support member is connected to the base, and the other end abuts against the outer wall of the wrapping assembly; the fastening assembly is connected to the base, and the fastening assembly abuts against the outer wall of the wrapping assembly. The embodiment of the present invention realizes the close wrapping of the high-energy pipeline, thereby effectively preventing the jet impact occurring when the high-energy pipeline ruptures, and improving the safety of the use of the high-energy pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline protection devices, and in particular to a high-energy pipeline rupture protection device for a nuclear power plant. Background Art

[0002] There are many high-energy pipelines in nuclear power plants. Usually, under normal operating conditions of nuclear power plants, the pressure of water or water vapor transported by high-energy pipelines is not less than 2MPa, or the temperature is not less than 100°C, and the pressure of transported gas exceeds atmospheric pressure. When a high-energy pipeline ruptures, it will cause a series of dynamic effects such as jet impact and high-energy pipeline swing. The dynamic effects will cause serious damage to the high-energy pipelines, equipment, and civil structures around the high-energy pipelines, affecting the safety of the nuclear power plant. Therefore, a special high-energy pipeline rupture protection device is required to fix the pipeline.

[0003] The existing high-energy pipeline rupture protection technology mainly involves installing a bracket with a baffle on the periphery of the pipeline body to prevent rupture jetting and fracture impact at the location where the rupture or fracture may occur. Due to the distance between the baffle and the outer wall of the pipeline, it cannot effectively prevent the jet impact generated when the high-energy pipeline ruptures, resulting in safety hazards. Summary of the invention

[0004] The embodiment of the present invention provides a nuclear power plant high energy pipeline rupture protection device to solve the problem that the jet impact generated when the high energy pipeline ruptures cannot be effectively prevented due to the spacing between the baffle and the outer wall of the pipeline, resulting in safety hazards.

[0005] An embodiment of the present invention provides a nuclear power plant high energy pipeline rupture protection device, comprising:

[0006] A wrapping component, a wrapping component used to wrap the high-energy pipeline, wherein when the wrapping component wraps the high-energy pipeline, the wrapping component fits the outer wall of the high-energy pipeline;

[0007] A base, the base being located on one side of the high-energy pipeline;

[0008] A support member, the support member is located between the base and the wrapping assembly, one end of the support member is connected to the base, and the other end of the support member abuts against an outer wall of the wrapping assembly;

[0009] A fastening assembly is connected to the base and abuts against an outer wall of the wrapping assembly.

[0010] Preferably, the fastening assembly comprises a first fixing seat, a second fixing seat and at least two fixing cables.

[0011] Preferably, the first fixing member includes a first fixing rod and a first limiting block.

[0012] Preferably, the second fixing member includes a second fixing rod and a second limiting block.

[0013] Preferably, the first fixing seat is provided with a first receiving groove adapted to the first limiting block and a second receiving groove adapted to the first fixing rod.

[0014] Preferably, the width of the first receiving groove is greater than the width of the second receiving groove.

[0015] Preferably, the second fixing seat is provided with a third receiving groove adapted to the second limiting block and a fourth receiving groove adapted to the second fixing rod.

[0016] Preferably, the width of the third receiving groove is greater than the width of the fourth receiving groove.

[0017] Preferably, a first connecting channel connecting the two first receiving grooves is provided between the two first receiving grooves corresponding to two adjacent first fixing members.

[0018] Preferably, hydraulic oil is provided in the communicating portion between the first receiving groove and the first communicating channel.

[0019] Preferably, a second connecting channel connecting the two third receiving grooves is provided between the two third receiving grooves corresponding to two adjacent second fixing members.

[0020] Preferably, hydraulic oil is provided in the communication portion between the third receiving groove and the second communication channel.

[0021] Preferably, a spring is arranged in the first receiving groove.

[0022] Preferably, a spring is disposed in the third receiving groove.

[0023] Preferably, the wrapping assembly includes a first arc-shaped member and a second arc-shaped member.

[0024] Preferably, the first arc-shaped member is a semicircular ring in radial cross section.

[0025] Preferably, the second arc-shaped member is a semicircular ring in radial cross section.

[0026] Preferably, a limiting groove adapted to the fixing cable is formed on the outer wall of the first arc-shaped member along the circumferential direction.

[0027] Preferably, the number of the limiting grooves is at least two, and the limiting grooves are arranged in a one-to-one correspondence with the fixing cables.

[0028] The embodiment of the present invention connects the wrapping assembly to the outer wall of the high-energy pipeline, arranges a support member and a base to fix and support the high-energy pipeline, and arranges a fastening assembly to stretch and fasten each component. Due to the close-fitting wrapping effect of the wrapping assembly, the jet impact that occurs when the high-energy pipeline ruptures is effectively prevented, thereby improving the safety of the use of the high-energy pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0030] Figure 1 It is a structural diagram of a high-energy pipeline rupture protection device for a nuclear power plant provided by an embodiment of the present invention;

[0031] Figure 2 It is a structural diagram of a first fixing seat in a high-energy pipeline rupture protection device for a nuclear power plant provided by an embodiment of the present invention;

[0032] Figure 3 It is a structural diagram of an assembly of a first fixing member and a first fixing seat in a high-energy pipeline rupture protection device for a nuclear power plant provided by an embodiment of the present invention;

[0033] Figure 4 It is a structural diagram of a first arc-shaped member in a high-energy pipeline rupture protection device for a nuclear power plant provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0036] Reference Figures 1 to 4 An embodiment of the present invention provides a nuclear power plant high-energy pipeline rupture protection device, which includes: a wrapping component 10, a wrapping component 10 for wrapping a high-energy pipeline, when the wrapping component 10 wraps the high-energy pipeline, the wrapping component 10 is in contact with the outer wall of the high-energy pipeline; a base 20, the base 20 is located on one side of the high-energy pipeline; a support member 30, the support member 30 is located between the base 20 and the wrapping component 10, and one end of the support member 30 is connected to the base 20, and the other end is abutted against the outer wall of the wrapping component 10; a fastening component 40, the fastening component 40 is connected to the base 20, and the fastening component 40 is abutted against the outer wall of the wrapping component 10.

[0037] In one embodiment, the wrapping assembly 10 may be a whole. In another embodiment, the wrapping assembly 10 may be a structure formed by combining and connecting a plurality of components.

[0038] like Figure 1 As shown, when the wrapping assembly 10 is wrapping the high-energy pipeline, the wrapping assembly 10 can be closely connected to the outer wall of the high-energy pipeline.

[0039] The shape of the base 20 can be set according to actual needs. In the embodiment of the present invention, the base 20 is a rectangular body, and the support member 30 is arranged on the base 20. The support member 30 can be composed of one or more support components. Specifically, in the embodiment of the present invention, the support member 30 can be composed of two support rods. At the same time, the angle between the support member 30 and the base 20 can be 90°, or greater than or less than 90°.

[0040] The embodiment of the present invention connects the wrapping assembly 10 to the outer wall of the high-energy pipeline, arranges the support member 30 and the base 20 to fix and support the high-energy pipeline, and arranges the fastening assembly 40 to stretch and fasten each component. Due to the close-fitting wrapping effect of the wrapping assembly 10, the jet impact that occurs when the high-energy pipeline ruptures is effectively prevented, thereby improving the safety of the use of the high-energy pipeline.

[0041] It should be noted that the structure of the fastening assembly 40 can be set according to actual needs. In the embodiment of the present invention, the fastening assembly 40 can include a first fixing seat 41, a second fixing seat 42 and at least two fixing ropes 43. The first fixing seat 41 and the second fixing seat 42 are arranged on the base 20 at intervals and are located on the side of the base 20 facing the wrapping assembly 10; the first fixing seat 41 is provided with a first fixing member 44 corresponding to each fixing rope 43, and the first fixing member 44 is fixedly connected to the corresponding fixing rope 43; the second fixing seat 42 is provided with a second fixing member 45 corresponding to each fixing rope 43; and the second fixing member 45 is fixedly connected to the corresponding fixing rope 43.

[0042] Among them, the spacing between the first fixing seat 41 and the second fixing seat 42 can be slightly larger than the outer diameter of the high-energy pipeline. Correspondingly, the angle between the fixing rope 43 and the fixing seat can be 90° or less than 90° according to the outer diameter of the high-energy pipeline. The first fixing seat 41 and the base 20 can be fixedly connected by screws or welding. At the same time, the shape of the first fixing seat 41 can be set according to actual needs. In practical applications, there are straight parts and curved parts in the high-energy pipeline. In this embodiment, when the high-energy pipeline rupture protection device of the nuclear power plant is arranged on the straight part of the high-energy pipeline, the first fixing seat 41 can be a rectangular body; in another embodiment, when the high-energy pipeline rupture protection device of the nuclear power plant is arranged on the curved part of the high-energy pipeline, the first fixing seat 41 can also have an arc adapted to the high-energy pipeline.

[0043] Accordingly, the second fixing seat 42 and the base 20 can be fixedly connected by means of screws or welding. Meanwhile, the shape of the second fixing seat 42 can be set according to actual needs. In this embodiment, when the high-energy pipeline rupture protection device of the nuclear power plant is arranged on the straight part of the high-energy pipeline, the second fixing seat 42 can be a rectangular body; in another embodiment, when the high-energy pipeline rupture protection device of the nuclear power plant is arranged on the curved part of the high-energy pipeline, the second fixing seat 42 can also have an arc adapted to the high-energy pipeline.

[0044] Furthermore, the structures of the first fixing member 44 and the second fixing member 45 can be configured according to actual needs. Figure 3As shown, the first fixing member 44 may be composed of a first limiting block 441 and a first fixing rod 442 . The first limiting block 441 and the first fixing rod 442 may be fixed by welding, or they may be an integral whole.

[0045] In the embodiment of the present invention, a circular hole may be provided at one end of the first fixing rod 442 connected to the fixing rope 43, and one end of the fixing rope 43 connected to the first fixing rod 442 passes through the circular hole and is tied and fixed to the first fixing rod 442. A buckle may be provided at the fixed connection between the first fixing rod 442 and the fixing rope 43 to fix the tied portion of the fixing rope, thereby making it easier to adjust the connection angle between the fixing rope 43 and the first fixing member 44, so that the device can be suitable for fixing the curved portion of the high-energy pipeline.

[0046] Correspondingly, the second fixing member 45 may be composed of a second limiting block 451 and a second fixing rod 452 . The second limiting block 451 and the second fixing rod 452 may be fixed by welding, or they may be an integral whole.

[0047] In an embodiment of the present invention, a circular hole may be opened at one end of the second fixing rod 452 connected to the fixing rope 43, and one end of the fixing rope 43 connected to the second fixing rod 452 passes through the circular hole and is fixed to the second fixing rod 452 in a bundled manner, wherein a buckle may be provided at the fixed connection between the second fixing rod 452 and the fixing rope 43 to fix the bundled part of the fixing rope.

[0048] Further, in an embodiment of the present invention, if Figures 2 to 3 As shown, the first receiving groove 411 and the second receiving groove 412 adapted to the first fixing member 44 may be provided inside the first fixing seat 41. The first receiving groove 411 is connected to the second receiving groove 412, and the width of the first receiving groove 411 is greater than the width of the second receiving groove 412. The first limit block 441 is seamlessly connected to the first receiving groove 411, and a first connecting channel 413 connecting the two first receiving grooves 411 is provided between the two first receiving grooves 411 corresponding to the two adjacent first fixing members 44, and the connecting portion between the first receiving groove 411 and the first connecting channel 413 is provided with hydraulic oil.

[0049] The groove type of the above-mentioned first receiving groove 411 can be set according to actual needs. In an embodiment of the present invention, the first receiving groove 411 can be a rectangular groove adapted to the first limit block 441, and the groove width is equal to the width of the first limit block 441; the above-mentioned first receiving groove 411 can also be connected to the first limit block 441 in an interference fit manner, that is, the groove width is slightly smaller than the width of the first limit block 441.

[0050] The groove type of the above-mentioned second receiving groove 412 can be set according to actual needs. In an embodiment of the present invention, the second receiving groove 412 can be a rectangular groove adapted to the first fixing rod 442, and the groove width is equal to the width of the first fixing rod 442; the above-mentioned second receiving groove 412 can also be connected to the first fixing rod 442 in an interference fit manner, that is, the groove width is slightly smaller than the width of the first fixing rod 442.

[0051] In order to ensure the independence of each space in the first receiving groove 411 and prevent the leakage of hydraulic oil, the connection between the first limit block 441 and the first receiving groove 411 and between the first fixing rod 442 and the second receiving groove 412 is sealed. At the same time, the first limit block 441 can move in the first receiving groove 411. When the high-energy pipeline is ruptured, the wrapping assembly 10 is impacted, and the first fixing member 44 connected to the fixing rope 43 is pulled upward by the traction of the fixing rope 43, so that the hydraulic oil in the first receiving groove 411 corresponding to the first fixing member 44 is squeezed into the first receiving groove 411 corresponding to the adjacent first fixing member 44 connected through the first connecting channel 413, thereby limiting the upward pulling of the adjacent first fixing member 44, so that the two sides of the ruptured high-energy pipeline can be tightened, which can effectively prevent the high-energy pipeline from being thrown off.

[0052] In addition, in an embodiment of the present invention, when the above-mentioned nuclear power plant high-energy pipeline rupture protection device is arranged on the straight part of the high-energy pipeline, the distance between two adjacent first fixing seats 41 can be equal; in another embodiment, when the above-mentioned nuclear power plant high-energy pipeline rupture protection device is arranged on the curved part of the high-energy pipeline, the distance between two adjacent first fixing seats 41 can be unequal.

[0053] Accordingly, the structural setting of the second fixing seat 42 can be carried out according to actual needs. In the embodiment of the present invention, the second fixing seat 42 can be provided with a third receiving groove 421 and a fourth receiving groove 422 adapted to the second fixing member 45. The third receiving groove 421 is connected with the fourth receiving groove 422, and the width of the third receiving groove 421 is greater than the width of the fourth receiving groove 422. The second limit block 451 is seamlessly connected with the third receiving groove 421, and a second connecting channel 423 connecting the two third receiving grooves 421 is provided between the two third receiving grooves 421 corresponding to the two adjacent second fixing members 45, and the connecting part between the third receiving groove 421 and the second connecting channel 423 is provided with hydraulic oil.

[0054] The groove type of the above-mentioned third receiving groove 421 can be set according to actual needs. In an embodiment of the present invention, the third receiving groove 421 can be a rectangular groove adapted to the second limit block 451, and the groove width is equal to the width of the second limit block 451; the above-mentioned third receiving groove 421 can also be connected to the second limit block 451 in an interference fit manner, that is, the groove width is slightly smaller than the width of the second limit block 451.

[0055] The groove type of the above-mentioned fourth receiving groove 422 can be set according to actual needs. In an embodiment of the present invention, the fourth receiving groove 422 can be a rectangular groove adapted to the second fixing rod 452, and the groove width is equal to the width of the second fixing rod 452; the above-mentioned fourth receiving groove 422 can also be connected to the second fixing rod 452 in an interference fit manner, that is, the groove width is slightly smaller than the width of the second fixing rod 452.

[0056] Similarly, the connection between the second limiting block 451 and the third receiving groove 421 and between the second fixing rod 452 and the fourth receiving groove 422 is airtight, and the second limiting block 451 can move in the third receiving groove 421 .

[0057] In addition, in the embodiment of the present invention, the spacing between two adjacent second fixing seats 42 may be equal. In another embodiment, when the nuclear power plant high energy pipeline rupture protection device is arranged at the curved part of the high energy pipeline, the spacing between two adjacent second fixing seats 42 may be unequal.

[0058] Furthermore, in order to avoid a hard collision between the first limit block 441 and the first receiving groove 411, thereby increasing the service life of the device, in an embodiment of the present invention, a spring 4111 may be provided in the first receiving groove 411. The spring 4111 is located on the side of the first limit block 441 away from the first fixing rod 442, and one end of the spring 4111 is connected to the first fixing seat 41, and the connection method may be welding or fixing with glue to the fixing seat, and the other end abuts against the first limit block 441; in another embodiment, a buffer device with a buffering function may also be provided in the first receiving groove 411, so as to play a buffering role for the first fixing member 44.

[0059] Correspondingly, in the embodiment of the present invention, a spring 4211 may be provided in the third receiving groove 421. The spring 4211 is located on the side of the second limit block 451 away from the second fixing rod 452, and one end of the spring 4211 is connected to the second fixing seat 42, and the other end is abutted against the second limit block 451, and the connection method may be welding or fixing with glue to the fixing seat; in another embodiment, a buffer device with a buffering function may also be provided in the third receiving groove 421, so as to play a buffering role for the second fixing member 45.

[0060] In the embodiment of the present invention, Figure 1As shown, the above-mentioned wrapping assembly 10 can be enclosed by a first arc-shaped member 11 and a second arc-shaped member 12. The radial cross-section of the first arc-shaped member 11 and the second arc-shaped member 12 can be a semicircular ring, or a fan ring with a central angle not being 180°, and the connection method of the first arc-shaped member 11 and the second arc-shaped member 12 can be glued and fixed, or can be fixed by snap fastening, which is not further limited here.

[0061] Furthermore, in order to prevent the installation position of the fixing cable 43 from being offset, as shown in FIG. Figure 4 As shown, the outer wall of the first arc-shaped member 11 may be provided with at least two limiting grooves 111 along the circumferential direction to match the fixing rope 43 , and the fixing rope 43 is partially accommodated in the limiting grooves 111 , and the limiting grooves 111 are arranged in one-to-one correspondence with the fixing rope 43 .

[0062] Specifically, the groove type of the above-mentioned limiting groove 111 can be set according to actual needs. In this embodiment, the limiting groove 111 can extend circumferentially to the two end surfaces where the first arc-shaped member 11 and the second arc-shaped member 12 are connected, and the depth of the limiting groove 111 can be slightly smaller than the diameter of the fixing cable 43. During the installation process, the fixing cable 43 is clamped in the limiting groove 111, so that the fixing cable 43 can be fixed on the wrapping component 10. At the same time, the distance between two adjacent limiting grooves 111 can be equal, or it can be adjusted accordingly to adapt to the degree of curvature of the high-energy pipeline.

[0063] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A high-energy pipeline rupture protection device for a nuclear power plant, characterized in that: include: A wrapping component, a wrapping component used to wrap the high-energy pipeline, wherein when the wrapping component wraps the high-energy pipeline, the wrapping component fits the outer wall of the high-energy pipeline; A base, the base being located on one side of the high-energy pipeline; A support member, the support member is located between the base and the wrapping assembly, one end of the support member is connected to the base, and the other end of the support member abuts against an outer wall of the wrapping assembly; A fastening assembly, the fastening assembly is connected to the base, and the fastening assembly abuts against an outer wall of the wrapping assembly; The fastening assembly includes a first fixing seat, a second fixing seat and at least two fixing ropes, wherein the first fixing seat and the second fixing seat are arranged on the base at an interval and are located on a side of the base facing the wrapping assembly; the first fixing seat is provided with a first fixing piece corresponding to each of the fixing ropes, and the first fixing piece is fixedly connected to the corresponding fixing rope; the second fixing seat is provided with a second fixing piece corresponding to each of the fixing ropes, and the second fixing piece is fixedly connected to the corresponding fixing rope; The first fixing member includes a first limiting block and a first fixing rod, one end of the first fixing rod is fixedly connected to the first limiting block, the first fixing seat is provided with a first receiving groove adapted to the first limiting block and a second receiving groove adapted to the first fixing rod, the first receiving groove is communicated with the second receiving groove, and the width of the first receiving groove is greater than the width of the second receiving groove, and the first limiting block is seamlessly connected to the first receiving groove; The second fixing member includes a second limiting block and a second fixing rod, one end of the second fixing rod is fixedly connected to the second limiting block, the second fixing seat is provided with a third receiving groove adapted to the second limiting block and a fourth receiving groove adapted to the second fixing rod, the third receiving groove is communicated with the fourth receiving groove, and the width of the third receiving groove is greater than the width of the fourth receiving groove, and the second limiting block is seamlessly connected to the third receiving groove; A first communication channel connecting the two first receiving grooves is provided between the two first receiving grooves corresponding to the two adjacent first fixing members, and hydraulic oil is provided in the communication portion between the first receiving groove and the first communication channel; A second communication channel connecting the two third receiving grooves is provided between two adjacent third receiving grooves corresponding to the second fixing members, and hydraulic oil is provided in the communication portion between the third receiving groove and the second communication channel; A spring is arranged in the first receiving groove. The spring is located on a side of the first limiting block away from the first fixing rod. One end of the spring is connected to the first fixing seat, and the other end is connected to the first limiting block.

2. The nuclear power plant high energy pipeline rupture protection device according to claim 1, characterized in that: A spring is arranged in the third receiving groove, and the spring is located on a side of the second limiting block away from the second fixing rod, and one end of the spring is connected to the second fixing seat, and the other end of the spring is connected to the second limiting block.

3. The nuclear power plant high energy pipeline rupture protection device according to claim 1, characterized in that: The wrapping assembly includes a first arc-shaped member and a second arc-shaped member, wherein the end surface of the first arc-shaped member is fitted and connected to the end surface of the second arc-shaped member, wherein the first arc-shaped member is connected to the fastening assembly, and the outer wall of the second arc-shaped member is connected to the supporting member.

4. The nuclear power plant high energy pipeline rupture protection device according to claim 3 is characterized in that: The first arc-shaped member is a semicircular ring in a radial cross section, and the second arc-shaped member is a semicircular ring in a radial cross section.

5. The nuclear power plant high energy pipeline rupture protection device according to claim 3, characterized in that: A limiting groove adapted to the fixing cable is formed on the outer wall of the first arc-shaped member along the circumferential direction, and the fastening component is partially accommodated in the limiting groove.

6. The nuclear power plant high energy pipeline rupture protection device according to claim 5, characterized in that: The number of the limiting grooves is at least two, and the limiting grooves are arranged in one-to-one correspondence with the fixing cables.

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