Containment high-energy penetration assembly and concrete containment

Abstract

The invention provides a containment high-energy penetration assembly and a concrete containment, and the containment high-energy penetration assembly comprises: an inner pipeline; the end socket assembly is arranged on the inner pipeline; the protective sleeve is arranged on the outer side of the inner pipeline in a sleeving mode, and the end socket assembly is plugged in the middle of the protective sleeve; the inner sleeve and the outer sleeve are arranged on the outer side of the protective sleeve in a sleeving mode, one end of the inner pipeline and one end of the corresponding protective sleeve extend to the end, away from the end socket assembly, of the inner sleeve, and the other end of the inner pipeline and the other end of the corresponding protective sleeve extend to the outer sleeve; wherein the protective sleeve is connected with the inner sleeve, the end socket assembly is flexibly connected with the inner sleeve, and the outer sleeve is flexibly and hermetically connected with the protective sleeve on one side of the end socket assembly. The concrete containment high-energy penetration piece design structure provided by the invention is beneficial to crevasse assumption and design of a high-energy pipeline in a containment penetration piece area, simplifies the design of the penetration piece pipeline and a containment sleeve, and is convenient for subsequent construction, in-service inspection and other work.

Description

Technical Field

[0001] The invention relates to the technical field of nuclear power engineering, and in particular to a containment high-energy penetration piece and a concrete containment. Background Art

[0002] The structure of the concrete containment is a reinforced concrete structure with a thickness of more than 1.3 meters and a steel lining on the inner wall. The penetration piece is used as a passage for the medium pipeline to enter and exit the containment. First, a casing is embedded in the containment. The medium pipeline passes through the opening formed by the casing and enters and exits the containment. At the same time, the embedded casing and the medium pipeline are connected through the penetration piece head to achieve sealing. As the third safety barrier of a nuclear power plant, the containment must maintain sealing and integrity under various working conditions.

[0003] Mechanical penetrations are generally divided into medium and low energy penetrations and high energy penetrations according to the fluid medium. The penetrations are welded to the sleeve embedded in the containment through the fixed head at the connection of the inner containment, which serves as the fixed point of the pipeline unit. The medium pipeline in the high energy penetration needs to be assumed to be broken at the fixed end point, which is located at the weld where the penetration head and the pipeline are connected. Due to the high temperature and pressure of the high energy pipeline medium, it is difficult to design the pipeline in the penetration area. According to the technical requirements of ANSI 58.2 and SRPBTP3-4, it is usually necessary to assume rupture at the fixed end point of the pipeline, resulting in excessive loads transmitted to the containment sleeve. The sleeve is usually designed with a thick wall thickness, which makes prefabrication, welding and in-service inspection more difficult. In addition, the hydraulic load caused by the rupture will bring about problems such as excessive acceleration of the valve in the penetration area. In order to facilitate the calculation of the pipeline unit in this area, the pipeline design needs to consider detours and additional support. Summary of the invention

[0004] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a high-energy penetration piece for a containment and a concrete containment, which are used to solve the problems of difficult design and calculation of pipelines at high-energy penetration pieces in existing nuclear power projects, large load on the penetration piece head resulting in large sleeve wall thickness, difficulty in on-site welding and subsequent in-service inspection, etc.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a high-energy penetration piece for a containment vessel, comprising: an inner pipe; a head assembly, which is arranged on the inner pipe; a protective sleeve, which is sleeved on the outside of the inner pipe, and the head assembly is sealed in the middle of the protective sleeve; an inner sleeve and an outer sleeve, wherein the inner sleeve and the outer sleeve are respectively sleeved on the outside of the protective sleeve, one end of the inner pipe and one end of the corresponding protective sleeve extend to one end of the inner sleeve away from the head assembly, and the other end of the inner pipe and the other end of the corresponding protective sleeve extend to the outer sleeve; wherein the protective sleeve is connected to the inner sleeve, the head assembly is flexibly connected to the inner sleeve, and the outer sleeve is flexibly and sealedly connected to the protective sleeve on one side of the head assembly.

[0006] In one embodiment of the present invention, the head assembly includes: a head; a plurality of first flexible parts and a plurality of first transition sleeves, the first flexible parts and the first transition sleeves are interconnected to form a flexible connection component, one end of the flexible connection component is connected to the inner sleeve, and the other end of the flexible connection component is connected to the head.

[0007] In one embodiment of the present invention, the head includes: a first head, which is arranged on the inner pipe; and a second head, which is arranged between the protective sleeve close to the inner sleeve and the first head to seal between the protective sleeve and the first head.

[0008] In one embodiment of the present invention, the first head is in an "I" shape, the second head is in a "D" shape, the first joint at the lower end of the second head is against the end surface of the protective sleeve, the second joint at the lower end of the second head is against the top side joint of the first head, and the other side joint of the top of the first head is against the end surface of the protective sleeve close to the outer sleeve.

[0009] In one embodiment of the present invention, the first flexible member is a bellows expansion joint; wherein, two ends of a bellows expansion joint are respectively connected to two first transition sleeves, and two ends of a first transition sleeve are respectively connected to two bellows expansion joints to form a flexible connection component.

[0010] In one embodiment of the present invention, the protective sleeve includes: a first protective sleeve and a second protective sleeve. The first protective sleeve and the second protective sleeve are respectively arranged on both sides of the head assembly. The first protective sleeve is correspondingly arranged on the inner side of the inner sleeve, and the second protective sleeve is correspondingly arranged on the inner side of the outer sleeve.

[0011] In one embodiment of the present invention, the protective sleeve further comprises: a liner, which is sleeved on the outer side of the first protective sleeve, and the first protective sleeve is elastically and sealingly connected to the inner sleeve through the liner.

[0012] In one embodiment of the present invention, the liner includes: a steel liner; and a flexible seal, which is respectively arranged between the inner wall of the steel liner and the outer wall of the first protective sleeve, and between the outer wall of the steel liner and the inner wall of the inner sleeve.

[0013] In one embodiment of the present invention, the outer sleeve includes: an outer sleeve body, and a second flexible member, one end of the second flexible member is connected to the outer sleeve body, and the other end of the second flexible member is connected to the outer side wall of the second protective sleeve.

[0014] In one embodiment of the present invention, the second flexible member includes: a plurality of bellows expansion joints and a plurality of second transition sleeves, the two ends of a bellows expansion joint are respectively connected to two second transition sleeves, and the two ends of a second transition sleeve are respectively connected to two bellows expansion joints.

[0015] In one embodiment of the present invention, one end of the second protective sleeve away from the head assembly is inserted into the outer sleeve body, the outer side wall of the second protective sleeve is provided with a sealing seat, and the second flexible member is sealingly connected to the sealing seat.

[0016] The present invention also provides a concrete containment, including the aforementioned containment high-energy penetration piece; and also includes: an inner containment and an outer containment, the outer containment is sleeved on the outside of the inner containment, the inner sleeve is correspondingly installed on the inner containment, and the outer sleeve is correspondingly installed on the outer containment.

[0017] Beneficial effects of the present invention: The present invention proposes a containment high-energy penetration and concrete containment, which can realize the protective sleeve to play a protective role when the weld at the high-energy penetration head is broken by utilizing the flexible sealing design between the head assembly and the inner sleeve. In addition, the function of the first head fixing point in the head assembly is optimized to a flexible design structure. According to the technical requirements of ANSI 58.2 and SRP BTP3-4, the stress ratio here can be reduced by subsequent pipeline design, so that there is no need to assume a rupture, simplifying the pipeline and containment sleeve design in the penetration area. Specifically, the welding side of the first head is connected to the inner sleeve through the first flexible member through one end of the second head, which can play a sealing and flexible connection to the inner containment. The lining sealed by the flexible sealing material between the first protective sleeve and the inner sleeve is designed to ensure that the displacement is within the allowable range of the flexible sealing material, which can further ensure the sealing and flexible connection between the protective sleeve and the inner sleeve. In the structural design of the outer containment, the second flexible member and the second protective sleeve are flexibly and sealedly connected so that the installation structure of the outer containment is consistent with that of the inner containment, and the displacement difference between the inner containment and the outer containment can be effectively absorbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the concrete containment shell of the present invention.

[0019] Figure 2 Shown as the present invention Figure 1 Enlarged view of the structure of the middle head assembly.

[0020] Component number description

[0021] Inner pipe 1; head assembly 2; protective sleeve 3; inner sleeve 4; outer sleeve 5; inner containment 6; outer containment 7; head 21; first flexible member 22; first transition sleeve 23; flexible connecting member 230; first head 211; second head 212; first joint 2121; second joint 2122; top side joint 2111; top other side joint 2112; first protective sleeve 31; and second protective sleeve 32; liner 33; sealing seat 321; steel lining 331; flexible sealing member 332; outer sleeve body 51; second flexible member 52. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0024] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0025] See also Figure 1 The present invention provides a high-energy penetration piece for a containment shell, comprising: an inner pipe 1; a head assembly 2, which is arranged on the inner pipe 1; a protective sleeve 3, which is sleeved on the outer side of the inner pipe 1, and the head assembly 2 is blocked in the middle of the protective sleeve 3; an inner sleeve 4 and an outer sleeve 5, which are respectively sleeved on the outer side of the protective sleeve 3, one end of the inner pipe 1 and one end of the corresponding protective sleeve 3 extend to one end of the inner sleeve 4 away from the head assembly 2, and the other end of the inner pipe 1 and the other end of the corresponding protective sleeve 3 extend to the outer sleeve 5; wherein the protective sleeve 3 is connected to the inner sleeve 4, the head assembly 2 is flexibly connected to the inner sleeve 4, and the outer sleeve 5 is flexibly sealed to the protective sleeve 3 on one side of the head assembly 2.

[0026] It is not difficult to find from the above content that in the structural design of the high-energy penetration piece of the containment, by flexibly connecting the inner sleeve 4 of the head assembly 2, according to the technical requirements of ANSI 58.2 and SRP BTP3-4, the stress ratio here can be reduced by pipeline design in the future, so that there is no need to assume a rupture, which simplifies the pipeline and containment casing design in the penetration area. Specifically, by using the protective sleeve 3 to be sleeved on the outside of the inner pipeline 1, the protective sleeve 1 can play a protective role when the weld is broken after being welded at the head assembly 2. The flexible connection between the protective sleeve 3 and the inner sleeve 4 can ensure that the displacement is within the allowable range of the flexible sealing material, and the sealing can be further ensured by this design. Moreover, by adopting the same flexible connection design between the outer sleeve 5 and the protective sleeve 3, the displacement difference between the inner and outer shells can be effectively absorbed. Therefore, the penetration structure design of the present invention can optimize the head fixing point to a flexible connection, simplify the rupture assumption in the penetration area, and optimize the pipeline and containment casing design.

[0027] like Figure 1 As shown, the head assembly 2 includes: a head 21; a plurality of first flexible members 22 and a plurality of first transition sleeves 23, the first flexible members 22 and the first transition sleeves 23 are interconnected to form a flexible connection component 230, one end of the flexible connection component 230 is connected to the inner sleeve 4, and the other end of the flexible connection component 230 is connected to the head 21.

[0028] In one embodiment of the present invention, when the end cap assembly 2 blocks the passage between the inner pipe 1 and the protective pipe 3, the end cap assembly 2 is installed on the protective pipe 3 by welding or the like through the end cap 21. The end cap 21 is also connected to the inner sleeve 4 through a flexible connection component 230 composed of a first flexible member 22 and a first transition sleeve 23, so as to optimize the end cap fixing point to a flexible connection, simplify the breach assumption in the penetration area, and optimize the design of the pipeline and the containment casing.

[0029] In this embodiment, the first flexible member 22 and the first transition sleeve 23 form a flexible section, that is, a flexible connection component 230, to achieve a flexible connection with the inner sleeve 4. Of course, it can also be a flexible section formed on the head assembly 2, which will not be described in detail here.

[0030] Furthermore, the head 21 includes: a first head 211, which is arranged on the inner pipe 1; and a second head 212, one side of the second head 212 is respectively connected to the protective sleeve 3 and the flexible connecting component 230, and the other side of the second head 212 is connected to the first head 211, so as to seal between the protective sleeve 3 and the first head 211, and between the flexible connecting component 230 and the first head 211.

[0031] In one embodiment of the present invention, the head 21 includes a first head 211 and a second head 212 in terms of specific structural design. The first head 211 is used as a through-piece head to block the passage between the inner pipe 1 and the protective pipe 3. The second head 212 is located between the first head 211 and the end of the protective pipe 3 to achieve sealing between the protective pipe 3 and the first head 211. At the same time, the upper end of the second head 212 is also flexibly connected to the flexible connection component 230 to optimize the fixing point of the head.

[0032] like Figure 2 As shown, the first head 211 is in an "I" shape, the second head 212 is in a "D" shape, the first joint 2121 at the lower end of the second head 212 is against the end surface of the protective sleeve 3, the second joint 2122 at the lower end of the second head 212 is against the joint 2111 on one side of the top of the first head 211, and the joint 2112 on the other side of the top of the first head 211 is against the end surface of the protective sleeve 3 close to the outer sleeve 5.

[0033] In one embodiment of the present invention, during the specific installation process of the second end cap 212 and the first end cap 211, the top side joint 2111 at one end of the "I" shape in the "I" shape of the first end cap 211 and the second joint 2122 at one end of the "I" shape in the "D" shape of the second end cap 212 are connected by welding or the like. The top other side joint 2112 at the other end of the "I" shape in the "I" shape of the first end cap 211 is set against the end surface of the protective sleeve 3 near the side of the outer sleeve 5 and is fixed by welding or the like. The first joint 2121 at the other end of the "I" shape in the "D" shape of the second end cap 212 is set against the end surface of the protective sleeve 3 and is connected to the end surface of the protective sleeve 3 by welding or the like. The "D"-shaped upper end of the second end cap 212 is connected to the flexible connecting component 230.

[0034] like Figure 1As shown, the first flexible member 22 is a bellows expansion joint; wherein, the two ends of a bellows expansion joint are respectively connected to two first transition sleeves 23, and the two ends of a first transition sleeve 23 are respectively connected to two bellows expansion joints to form a flexible connection component 230. In this embodiment, the first flexible member 22 can be a bellows expansion joint. Of course, it can also be other flexible structural members. In the specific installation process, it can be achieved by welding one end of a bellows expansion joint at the edge to the end of the inner sleeve 4, and the other end to one end of a first transition sleeve 23. The other end of the first transition sleeve 23 can be welded to another bellows expansion joint, and continue to connect multiple first transition sleeves 23 and bellows expansion joints, or directly welded to the second head 212. Thereby, while achieving sealing between the protective sleeve 3 and the inner sleeve 4, a flexible connection between the second head 212 and the inner sleeve 4 can also be achieved.

[0035] Specifically, the protective sleeve 3 includes: a first protective sleeve 31 and a second protective sleeve 32. The first protective sleeve 31 and the second protective sleeve 32 are respectively arranged on both sides of the head assembly 2. The first protective sleeve 31 is correspondingly arranged on the inner side of the inner sleeve 4, and the second protective sleeve 32 is correspondingly arranged on the inner side of the outer sleeve 5.

[0036] In one embodiment of the present invention, the protective sleeve 3 can be a segmented structure, that is, it includes two sections: a first protective sleeve 31 and a second protective sleeve 32. Among them, the first protective sleeve 31 is located on the inner side of the inner sleeve 4, and the second protective sleeve 32 is correspondingly arranged on the inner side of the outer sleeve 5. The corresponding ends of the first protective sleeve 31 and the second protective sleeve 32 are respectively abutted and welded on both sides of the head assembly 2. Specifically, the corresponding ends of the first protective sleeve 31 and the second protective sleeve 32 are respectively abutted and welded on the top one side joint 2111 and the top other side joint 2112 on both sides of the first head 211.

[0037] Furthermore, the protective sleeve 3 further comprises: a lining 33 , which is sleeved on the outer side of the first protective sleeve 31 , and the first protective sleeve 31 is elastically and sealingly connected to the inner sleeve 4 through the lining 33 .

[0038] In one embodiment of the present invention, when the protective sleeve 3 establishes an elastic and sealed connection with the inner sleeve 4, the liner 33 is sleeved between the outer wall of the first protective sleeve 31 and the inner wall of the inner sleeve 4, and a sealed connection is performed. Specifically, the liner 33 is a flexible sealing material. Since the displacement needs to be ensured within the allowable range of the flexible sealing material during design, the sealing can be further ensured through this design.

[0039] Specifically, the liner 33 includes: a steel liner 331; and a flexible seal 332, which is respectively arranged between the inner wall of the steel liner 331 and the outer wall of the first protective sleeve 31, and between the outer wall of the steel liner 331 and the inner wall of the inner sleeve 4.

[0040] In one embodiment of the present invention, when the inner wall of the steel liner 331 is connected to the outer wall of the first protective sleeve 31, the steel liner 331 can be sealed and flexibly connected to the first protective sleeve 31 through a flexible seal 332. Similarly, the steel liner 331 can also be sealed and flexibly connected to the inner sleeve 4 by using a flexible seal 332. The flexible seal 332 can be a flexible sealing material. The flexible strength of the flexible sealing material only needs to ensure that the displacement is within the allowable range of the flexible sealing material during design.

[0041] like Figure 1 and 2 As shown, the outer sleeve 5 includes: an outer sleeve body 51 and a second flexible member 52 , one end of the second flexible member 52 is connected to the outer sleeve body 51 , and the other end of the second flexible member 52 is connected to the outer side wall of the second protective sleeve 32 .

[0042] In one embodiment of the present invention, the outer sleeve 5 is installed on the outer containment shell 7 through the outer sleeve body 51 when the outer sleeve 5 is flexibly connected to the second protective sleeve 32. One end of the outer sleeve body 51 is connected to the second protective sleeve 32 through the second flexible member 52, ensuring that the installation structure of the outer containment shell 7 is consistent with the installation structure of the inner containment shell 6, so as to absorb the position difference between the inner and outer shells.

[0043] Preferably, the second flexible member 52 includes: a plurality of bellows expansion joints and a plurality of second transition sleeves (not shown in the figure), the two ends of a bellows expansion joint are respectively connected to two second transition sleeves, and the two ends of a second transition sleeve are respectively connected to two bellows expansion joints.

[0044] In one embodiment of the present invention, the second flexible member 52 can adopt the same structural design as the first flexible member 22 in its structural design. The outer sleeve body 51 can be connected to the outer side wall of the second protective sleeve 32 by only using one bellows expansion joint. Of course, the outer sleeve body 51 can also be connected to the outer side wall of the second protective sleeve 32 by using multiple bellows expansion joints and multiple second transition sleeves. Specifically, by connecting the two ends of each bellows expansion joint to two second transition sleeves, and connecting the two ends of each second transition sleeve to two bellows expansion joints, it is possible to connect multiple bellows expansion joints and multiple second transition sleeves in sequence in this way, thereby forming a multi-section spliced ​​flexible structure to achieve the function of flexible sealing connection.

[0045] Specifically, one end of the second protective sleeve 32 away from the head assembly 2 is inserted into the outer sleeve body 51 , the outer side wall of the second protective sleeve 32 is provided with a sealing seat 321 , and the second flexible member 52 is sealingly connected to the sealing seat 321 .

[0046] In one embodiment of the present invention, when 32 is sealed and flexibly connected with the outer sleeve 5 through the second flexible member 52, a sealing seat 321 is set on the outer wall of the second protective sleeve 32 as an installation point to realize the welding of the second flexible member 52 on the sealing seat 321, thereby ensuring the sealing of the connection with the second protective sleeve 32.

[0047] like Figure 1 As shown, the present invention also provides a concrete containment, including the aforementioned containment high-energy penetration piece; and also includes: an inner containment 6, and an outer containment 7, the outer containment 7 is sleeved on the outer side of the inner containment 6, the inner sleeve 4 is correspondingly installed on the inner containment 6, and the outer sleeve 5 is correspondingly installed on the outer containment 7.

[0048] In one embodiment of the present invention, in the process of forming a concrete containment shell by using a containment shell high-energy penetration piece, the concrete containment shell further includes an inner containment shell 6 and an outer containment shell 7. Among them, the radial dimension of the inner containment shell 6 is smaller than the radial dimension of the outer containment shell 7. Thus, the inner containment shell 6 is sleeved on the inner side of the outer containment shell 7. And the containment shell high-energy penetration piece sequentially penetrates the inner containment shell 6 and the outer containment shell 7. Specifically, the inner sleeve 4 of the containment shell high-energy penetration piece is correspondingly installed on the inner containment shell 6, and the outer sleeve 5 is correspondingly installed on the outer containment shell 7.

[0049] In summary, the present invention uses the flexible sealing design between the head assembly 2 and the inner sleeve 4 through the protective sleeve 3, so that the protective sleeve 3 can play a protective role when the weld at the high-energy penetration head is broken. In addition, the function of the fixed point of the first head 211 in the head assembly 2 is optimized to a flexible design structure. According to the technical requirements of ANSI 58.2 and SRPBTP3-4, the stress ratio here can be reduced by subsequent pipeline design, so that there is no need to assume a rupture, simplifying the pipeline and containment casing design in the penetration area. Specifically, at one end of the second head 212 on the welding side of the first head 211, the connection between the first flexible member 22 and the inner sleeve 4 can play a sealing and flexible connection to the inner containment 5. The liner 33 sealed by the flexible sealing material between the first protective sleeve 31 and the inner sleeve 4 is designed to ensure that the displacement is within the allowable range of the flexible sealing material, which can further ensure the sealing and flexible connection between the protective sleeve 31 and the inner sleeve 4. In the structural design of the outer containment shell 7, by utilizing the flexibility and sealing connection of the second flexible member 52 and the second protective sleeve 32, the installation structure of the outer containment shell 7 is kept consistent with the installation structure of the inner containment shell 6, and the displacement difference between the inner containment shell 6 and the outer containment shell 7 can be effectively absorbed. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0050] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A containment high-energy penetration, characterized in that: include: Inner pipe (1); A sealing head assembly (2), wherein the sealing head assembly (2) is arranged on the inner pipe (1); A protective sleeve (3), wherein the protective sleeve (3) is sleeved on the outer side of the inner pipe (1), and the sealing head assembly (2) is sealed in the middle of the protective sleeve (3); An inner sleeve (4) and an outer sleeve (5), wherein the inner sleeve (4) and the outer sleeve (5) are respectively sleeved on the outside of the protective sleeve (3), one end of the inner pipe (1) and one end of the corresponding protective sleeve (3) extend to one end of the inner sleeve (4) away from the head assembly (2), and the other end of the inner pipe (1) and the other end of the corresponding protective sleeve (3) extend to the outer sleeve (5); The protective sleeve (3) is connected to the inner sleeve (4), the head assembly (2) is flexibly connected to the inner sleeve (4), and the outer sleeve (5) is flexibly sealed to the protective sleeve (3) on one side of the head assembly (2).

2. The containment high-energy penetration piece according to claim 1, characterized in that: The sealing head assembly (2) comprises: Header (21); A plurality of first flexible members (22) and a plurality of first transition sleeves (23), wherein the first flexible members (22) and the first transition sleeves (23) are interconnected to form a flexible connection member (230), one end of the flexible connection member (230) is connected to the inner sleeve (4), and the other end of the flexible connection member (230) is connected to the end cap (21).

3. The containment high-energy penetration piece according to claim 2, characterized in that: The sealing head (21) comprises: A first sealing head (211), wherein the first sealing head (211) is arranged on the inner pipe (1); and A second head (212), one side of the second head (212) is respectively connected to the protective sleeve (3) and the flexible connecting component (230), and the other side of the second head (212) is connected to the first head (211), so as to seal between the protective sleeve (3) and the first head (211), and between the flexible connecting component (230) and the first head (211).

4. The containment high-energy penetration piece according to claim 3, characterized in that: The first end cap (211) is in the shape of an I, and the second end cap (212) is in the shape of a D. The first joint (2121) at the lower end of the second end cap (212) is abutted against the end surface of the protective sleeve (3), the second joint (2122) at the lower end of the second end cap (212) is abutted against the joint (2111) on one side of the top of the first end cap (211), and the joint (2112) on the other side of the top of the first end cap (211) is abutted against the end surface of the protective sleeve (3) on the side close to the outer sleeve (5).

5. The containment high-energy penetration piece according to claim 2, characterized in that: The first flexible member (22) is a bellows expansion joint; wherein, the two ends of one of the bellows expansion joints are respectively connected to the two first transition sleeves (23), and the two ends of one of the first transition sleeves (23) are respectively connected to the two bellows expansion joints, so as to form the flexible connection component (230).

6. The containment high-energy penetration piece according to claim 1, characterized in that: The protective sleeve (3) comprises: A first protective sleeve (31) and a second protective sleeve (32), wherein the first protective sleeve (31) and the second protective sleeve (32) are respectively disposed on two sides of the head assembly (2), the first protective sleeve (31) is correspondingly disposed on the inner side of the inner sleeve (4), and the second protective sleeve (32) is correspondingly disposed on the inner side of the outer sleeve (5).

7. The containment high-energy penetration piece according to claim 6, characterized in that: The protective sleeve (3) further comprises: A lining (33), wherein the lining (33) is sleeved on the outer side of the first protective sleeve (31), and the first protective sleeve (31) is elastically and sealingly connected to the inner sleeve (4) through the lining (33).

8. The containment high-energy penetration piece according to claim 7, characterized in that: The lining (33) comprises: Steel lining (331); and A flexible seal (332), wherein the flexible seal (332) is respectively arranged between the inner wall of the steel liner (331) and the outer wall of the first protective sleeve (31), and between the outer wall of the steel liner (331) and the inner wall of the inner sleeve (4).

9. The containment high-energy penetration piece according to claim 6, characterized in that: The outer sleeve (5) comprises: an outer sleeve body (51), and A second flexible member (52), one end of the second flexible member (52) is connected to the outer sleeve body (51), and the other end of the second flexible member (52) is connected to the outer side wall of the second protective sleeve (32).

10. The containment high-energy penetration piece according to claim 9, characterized in that: The second flexible member (52) comprises: a plurality of bellows expansion joints and a plurality of second transition sleeves, wherein two ends of one bellows expansion joint are respectively connected to two second transition sleeves, and two ends of one second transition sleeve are respectively connected to two bellows expansion joints.

11. The containment high-energy penetration piece according to claim 9, characterized in that: One end of the second protective sleeve (32) away from the sealing head assembly (2) is inserted into the outer sleeve body (51), the outer side wall of the second protective sleeve (32) is provided with a sealing seat (321), and the second flexible member (52) is sealingly connected to the sealing seat (321).

12. A concrete containment vessel, characterized in that: A containment high-energy penetration member comprising any one of claims 1 to 11; Also includes: An inner containment shell (6) and an outer containment shell (7), wherein the outer containment shell (7) is sleeved on the outer side of the inner containment shell (6), the inner sleeve (4) is correspondingly mounted on the inner containment shell (6), and the outer sleeve (5) is correspondingly mounted on the outer containment shell (7).

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