Water cooling device

Abstract

The utility model discloses a water cooling device, and belongs to the technical field of boilers, the water cooling device comprises a plurality of convection tube banks, the plurality of convection tube banks are arranged at intervals, and each convection tube bank comprises a first outlet header, a first inlet header and a first heat exchange tube set communicated between the first outlet header and the first inlet header; at least one connecting assembly is arranged between the first outlet headers of every two adjacent convection tube banks, and the connecting assemblies are connected with the first outlet headers of the two convection tube banks correspondingly; at least another connecting assembly is arranged between the first inlet headers of every two adjacent convection banks, and the other connecting assembly is connected with the first inlet headers of the two convection banks. The first outlet headers of every two adjacent convection banks are connected through the corresponding connecting assembly, the first inlet headers of every two adjacent convection banks are connected through the corresponding connecting assembly, a traditional box frame structure is replaced, the water cooling device is simple in structure and convenient and fast to install, and the equipment weight of the water cooling device is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of boilers, and in particular to a water cooling device. Background Art

[0002] The current boiler water cooling device needs to be supported by a box frame structure, but the existing box frame structure is complex, increases the weight of the water cooling device, and is difficult to install on site. Utility Model Content

[0003] The purpose of the present application is to provide a water cooling device to solve the problems of the existing water cooling device, such as the complex box frame structure, the difficulty in installation, and the high weight of the overall equipment.

[0004] Technical solution: A water cooling device provided in an embodiment of the present application includes:

[0005] A plurality of convection tube bundles, wherein the plurality of convection tube bundles are arranged at intervals, and the convection tube bundles include: a first outlet header, a first inlet header, and a first heat exchange tube group connected therebetween;

[0006] A plurality of connection components are provided, wherein at least one connection component is provided between the first outlet headers of two adjacent convection tube bundles, and the connection components are respectively connected to the first outlet headers of the two convection tube bundles; and at least another connection component is provided between the first inlet headers of two adjacent convection tube bundles, and the another connection component is respectively connected to the first inlet headers of the two convection tube bundles.

[0007] In some embodiments, the plurality of convection tube bundles are arranged at intervals along a first direction, and the first outlet headers and the first inlet headers of the convection tube bundles are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction;

[0008] Each of the connection components comprises:

[0009] The first fin and the second fin are connected to each other, and the connected first fin and second fin are connected between the first outlet headers or between the first inlet headers of two adjacent convection tube bundles.

[0010] In some embodiments, the first fin and the second fin are movably connected.

[0011] In some embodiments, the water cooling device also includes a first membrane water-cooled wall and a second membrane water-cooled wall, and the first membrane water-cooled wall and the second membrane water-cooled wall are arranged at intervals on both sides of the multiple convection tube bundles along a third direction, and are respectively connected to the multiple convection tube bundles through connecting parts, and the third direction is perpendicular to the first direction.

[0012] In some embodiments, the first membrane water-cooled wall and the second membrane water-cooled wall each include a second outlet header, a second inlet header, and a second heat exchange tube group connected therebetween;

[0013] The connecting member includes: a connected mounting pad and a mounting seat, wherein the connected mounting pad and the mounting seat are connected between the first outlet header and the second outlet header or between the first inlet header and the second inlet header.

[0014] In some embodiments, the plurality of convection tube bundles are arranged at intervals along a first direction, and the first outlet headers and the first inlet headers of the convection tube bundles are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction;

[0015] The water cooling device also includes:

[0016] a first sealing cap and a second sealing cap, wherein the first sealing cap and the second sealing cap are arranged at intervals on both sides of the convection tube bundle along the second direction, and together with the first membrane water-cooled wall and the second membrane water-cooled wall, form a waste heat recovery channel;

[0017] A first sealing structure is connected between the first sealing cap and the first membrane water-cooled wall, the second membrane water-cooled wall and the first outlet headers of the two outermost convection tube bundles;

[0018] A second sealing structure is connected between the second sealing cap and the first membrane water-cooled wall, the second membrane water-cooled wall and the first inlet headers of the two outermost convection tube bundles.

[0019] In some embodiments, a first connection plate is provided on one side of the first outlet header facing the first membrane water-cooled wall and the second membrane water-cooled wall, and the first connection plate is used to connect the connection components between the plurality of first outlet headers;

[0020] A second connecting plate is provided on one side of the first inlet header facing the first membrane water-cooled wall and the second membrane water-cooled wall, and the second connecting plate is used to connect the connecting components between the plurality of the first inlet headers.

[0021] In some embodiments, the first membrane water-cooled wall and the second membrane water-cooled wall are both provided with a third fin on a side facing the first connecting plate, and the third fin is movably connected to the first connecting plate;

[0022] The first membrane water-cooled wall and the second membrane water-cooled wall are both provided with fourth fins on a side facing the second connecting plate, and the fourth fins are movably connected to the second connecting plate.

[0023] In some embodiments, both the first sealing cap and the second sealing cap are filled with heat-insulating materials.

[0024] In some embodiments, the first outlet header and the first inlet header are both provided with pipe joints on a side away from the first heat exchange tube group;

[0025] The second outlet header and the second inlet header are both connected to the pipe joint through a steam guide pipe.

[0026] In some embodiments, the first outlet header is provided with a hanging piece, and the first inlet header is provided with a supporting seat;

[0027] The first sealing cap is provided with a plurality of first through holes, and the pipe joint of the first outlet header and the hanging member are respectively passed through the first through holes and extend to the outside;

[0028] The second sealing cap is provided with a plurality of second through holes, and the pipe joint of the first inlet header and the support seat are respectively provided with the second through holes and extend to the outside.

[0029] In some embodiments, a first sealing ring is provided between the first sealing cap and the pipe joint of the first outlet header and in the first through hole, and a second sealing ring is provided between the second sealing cap and the pipe joint of the first inlet header and in the second through hole.

[0030] The beneficial effects of the present application are as follows: a water cooling device according to an embodiment of the present application comprises: a plurality of convection tube bundles, the plurality of convection tube bundles are arranged at intervals, the convection tube bundles comprise: a first outlet header, a first inlet header, and a first heat exchange tube group connected therebetween; a plurality of connection components, at least one connection component is provided between the first outlet headers of two adjacent convection tube bundles, and the connection components are respectively connected to the first outlet headers of the two convection tube bundles; at least another connection component is provided between the first inlet headers of two adjacent convection tube bundles, and the other connection component is respectively connected to the first inlet headers of the two convection tube bundles. The first outlet headers of two adjacent convection tube bundles and the first inlet headers of two adjacent convection tube bundles are connected by connection components to replace the traditional box frame structure, which has a simple structure and is easy to install, thereby reducing the equipment weight of the water cooling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1This is a schematic diagram of the structure of the water cooling device in the embodiment of the present application from the main viewing angle;

[0033] Figure 2 It is a partial cross-sectional view of the water cooling device in the embodiment of the present application from the right side perspective;

[0034] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0035] Figure 4 for Figure 1 A partial enlarged view of point B in the middle;

[0036] Figure 5 for Figure 1 A partial enlarged view of point C in the middle;

[0037] Figure 6 The water cooling device of the present application embodiment is Figure 2 The diagram is a top view from a viewing angle, and the first sealing cap is not shown in the figure.

[0038] Figure numerals: 1, convection tube bundle; 11, first outlet header; 12, first inlet header; 13, first heat exchange tube group; 20, connecting assembly; 200, assembly part; 201, first fin; 202, second fin; 31, first membrane water-cooled wall; 32, second membrane water-cooled wall; 41, mounting seat; 42, mounting pad; 51, first sealing cap; 52, second sealing cap; 60, thermal insulation cotton; 71, lifting part; 72, supporting seat; 80, baffle; 91, pipe joint; 92, steam guide pipe; 100, sealing plate; 111, first connecting plate; 112, second connecting plate; 311, second outlet header; 312, second inlet header; 313, second heat exchange tube group; 314, third fin; 315, fourth fin; 3131, light tube; 3132, flat steel. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In the above embodiments, the description of each embodiment has its own emphasis. For the parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0040] In the description of the present application, it should be understood that the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two, or more than two, unless otherwise clearly and specifically defined.

[0041] It should also be noted that in the drawings of the embodiments of the present application, the arrow marked X represents the first direction, the arrow marked Y represents the second direction, and the arrow marked Z represents the third direction; the first direction X, the second direction Y, and the third direction Z are introduced to more clearly describe the structure and relative position relationship of each component in the test device. In actual applications, the direction may change depending on the placement of the device.

[0042] In the related art, the current boiler water-cooling device requires a box frame structure for support, but the existing box frame structure is complex in structure, which increases the weight of the water-cooling device and is difficult to install on site; the equipment components of the boiler water-cooling device are usually shipped in pieces and assembled and welded after being transported to the installation site, and the equipment is often damaged by collision, extrusion, etc. during transportation; at the same time, the working conditions at the installation site are relatively simple, and the welding quality is difficult to control; the interior of the water-cooling device needs to be cast in a lining, and the subsequent furnace baking process is cumbersome, intensive, long, and costly.

[0043] In view of this, the present application provides a water cooling device, aiming to solve at least one of the above technical problems.

[0044] Please combine Figure 1 and Figure 2As shown, a water cooling device in an embodiment of the present application includes: a plurality of convection tube bundles 1 and a plurality of connection components 20, wherein the plurality of convection tube bundles 1 are arranged at intervals, and the convection tube bundles 1 include: a first outlet header 11, a first inlet header 12, and a first heat exchange tube group 13 connected therebetween; the first heat exchange tube group 13 is composed of a plurality of heat exchange tubes, and plays a major role in heat exchange. At least one connection component 20 is provided between the first outlet headers 11 of two adjacent convection tube bundles 1, and the connection component 20 is respectively connected to the first outlet headers 11 of the two convection tube bundles 1; at least another connection component 20 is provided between the first inlet headers 12 of two adjacent convection tube bundles 1, and the other connection component 20 is respectively connected to the first inlet headers 12 of the two convection tube bundles 1. Every two first inlet manifolds 12 and every two first outlet manifolds 11 are connected by a connecting assembly 20 to form a modular combination. No on-site installation is required and the whole assembly can be transported, thus avoiding damages such as collision and extrusion during the transportation of scattered parts out of the factory. Meanwhile, the connecting assembly 20 replaces the existing box frame structure and has a simple assembly structure, thereby reducing the weight of the water cooling device.

[0045] Please combine Figure 2 , Figure 3 as well as Figure 6 As shown, in some embodiments, a plurality of convection tube bundles 1 are arranged at intervals along a first direction, and the first outlet headers 11 and the first inlet headers 12 of the convection tube bundles 1 are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction; each connection assembly 20 includes: a first fin 201 and a second fin 202, the first fin 201 and the second fin 202 are connected, and the connected first fin 201 and the second fin 202 are connected between the first outlet headers 11 or the first inlet headers 12 of two adjacent convection tube bundles 1. The first fin 201 and the second fin 202 are fixedly connected or movably connected. Specifically, the projections of the first fin 201 and the second fin 202 along the second direction have an overlapping portion, and the overlapping portion of the projection is welded to fix the first fin 201 and the second fin 202; or, the overlapping portion of the projections of the first fin 201 and the second fin 202 along the second direction are both provided with waist-shaped holes; the waist-shaped holes of the first fin 201 and the second fin 202 are penetrated by the assembly part 200 to connect the first fin 201 and the second fin 202. More specifically, the assembly part 200 is a bolt. The first fin 201 and the second fin 202 are movably connected to avoid deformation of the connection part caused by thermal expansion of the convection tube bundle 1, thereby ensuring the stability of the equipment connection.

[0046] Please refer to Figure 1 and Figure 2 and Figure 6As shown, in some embodiments, the water cooling device also includes a first membrane water-cooled wall 31 and a second membrane water-cooled wall 32. The first membrane water-cooled wall 31 and the second membrane water-cooled wall 32 are arranged at intervals on both sides of the multiple convection tube bundles 1 along the third direction, and are respectively connected to the multiple convection tube bundles 1 through connecting parts. The third direction is perpendicular to the first direction.

[0047] The first membrane water-cooled wall 31 and the second membrane water-cooled wall 32 both include a second outlet header 311, a second inlet header 312, and a second heat exchange tube group 313 connected therebetween; the second heat exchange tube groups 313 of the first membrane water-cooled wall 31 and the second membrane water-cooled wall 32 are both welded by light tubes 3131 and flat steel 3132 or directly rolled fin tubes. The first membrane water-cooled wall 31 and the second membrane water-cooled wall 32 can be quickly installed and connected to the two sides of the multiple convection tube bundles 1 along the third direction as a whole through connectors, so that there is no need to cast the lining inside the water-cooling device, reducing the casting lining and the subsequent work process of baking the furnace. Without a frame and lining structure, the weight of the water-cooling device is reduced, and the construction cost is saved without the need for baking the furnace, which avoids the risk of the convection tube bundle 1 and the lining falling off due to inconsistent thermal expansion during operation.

[0048] Please combine Figure 1 and Figure 4 As shown, in some embodiments, the connector includes a connected mounting pad 42 and a mounting seat 41, and the connected mounting pad 42 and the mounting seat 41 are connected between the first outlet header 11 and the second outlet header 311 or between the first inlet header 12 and the second inlet header 312. The mounting pad 42 and the mounting seat 41 can be fixedly welded or connected in other fixed ways or detachably connected. On the one hand, the first outlet header 11 and the second outlet header 311, and the first inlet header 12 and the second inlet header 312 are connected by the connector, so that there is no direct contact between the headers, which is convenient for connection; on the other hand, the use of the connector can facilitate the removal of the first membrane water-cooled wall 31 and the second membrane water-cooled wall 32 for easy maintenance.

[0049] In some embodiments, a plurality of convection tube bundles 1 are arranged at intervals along a first direction, and a first outlet header 11 and a first inlet header 12 of the convection tube bundle 1 are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction;

[0050] Please refer to Figure 1 and Figure 2As shown, the water cooling device also includes: a first sealing cap 51 and a second sealing cap 52, the first sealing cap 51 and the second sealing cap 52 are arranged at intervals on both sides of the convection tube bundle 1 along the second direction, and together with the first membrane water-cooled wall 31 and the second membrane water-cooled wall 32, a waste heat recovery channel is formed; as shown in the figure, the air inlet and the air outlet of the waste heat recovery channel are arranged along the first direction; the flue gas passes through the waste heat recovery channel, and the heat is absorbed by the convection tube bundle 1 in the waste heat recovery channel and transmitted to the heat recovery device by the flow of the medium inside the convection tube bundle 1. In some embodiments, it should be noted that, considering that the flow rate of the flue gas is too large, a baffle 80 can be set at the first outlet header 11 and the first inlet header 12 at the air inlet and the air outlet to reduce the impact of the airflow on the header.

[0051] Please cooperate Figure 2 , Figure 5 , Figure 6 As shown, a first sealing structure is connected between the first sealing cap 51 and the first membrane water-cooled wall 31, the second membrane water-cooled wall 32 and the first outlet header 11 of the two outermost convection tube bundles 1; a second sealing structure is connected between the second sealing cap 52 and the first membrane water-cooled wall 31, the second membrane water-cooled wall 32 and the first inlet header 12 of the two outermost convection tube bundles 1. It should be understood that the first sealing structure is used to completely seal the first sealing cap 51 and the first membrane water-cooled wall 31, the second membrane water-cooled wall 32 and the outermost convection tube bundle 1, including the connection area between the convection tube bundle 1 and the water-cooled wall, so as to avoid smoke leakage; specifically, the first sealing structure includes a plurality of sealing plates 100, wherein two sealing plates 100 are respectively welded on the side of the first membrane water-cooled wall 31 and the second membrane water-cooled wall 32 away from the convection tube bundle 1, and the other two sealing plates 100 are respectively welded on the opposite sides of the two outermost convection tube bundles 1, and the bottom end of the first sealing cap 51 is welded to the plurality of sealing plates 100; the second sealing structure is the same, and the connection method is the same, which will not be repeated here.

[0052] Please refer to Figure 1 and Figure 5 As shown, in some embodiments, the first outlet header 11 is provided with a first connecting plate 111 on one side facing the first membrane water-cooled wall 31 and the second membrane water-cooled wall 32, and the first connecting plate 111 is used to connect the connecting components 20 between the multiple first outlet headers 11; the first inlet header 12 is provided with a second connecting plate 112 on one side facing the first membrane water-cooled wall 31 and the second membrane water-cooled wall 32, and the second connecting plate 112 is used to connect the connecting components 20 between the multiple first inlet headers 12. The connecting components 20 between the multiple headers are connected by connecting plates to block the gaps between the headers, preventing the flue gas from rushing out directly between the two groups of headers, and at the same time, it can ensure the overall stability of the multiple convection tube bundles 1 to prevent the components from falling off due to the impact of the flue gas.

[0053] In some embodiments, the first membrane water-cooled wall 31 and the second membrane water-cooled wall 32 are both provided with a third fin 314 on the side facing the first connecting plate 111, and the third fin 314 is movably connected to the first connecting plate 111; the first membrane water-cooled wall 31 and the second membrane water-cooled wall 32 are both provided with a fourth fin 315 on the side facing the second connecting plate 112, and the fourth fin 315 is movably connected to the second connecting plate 112. Among them, the third fin 314 and the fourth fin 315 are provided partly for the stable connection between the membrane water-cooled wall and the convection tube bundle 1 header, and partly for preventing the flue gas from overflowing from the membrane water-cooled wall and the convection tube bundle 1 header. The third fin 314 is movably connected to the first connecting plate 111, and the fourth fin 315 is movably connected to the second connecting plate 112. The movably connected can be in the form of a movably overlapped connection, which can avoid the risk of falling off due to inconsistent thermal expansion, and on the other hand, the movably overlapped connection is convenient for disassembly and maintenance.

[0054] In some embodiments, the first sealing cap 51 and the second sealing cap 52 are filled with heat-insulating materials, such as Figure 1 As shown, it plays the role of heat preservation and preventing smoke from overflowing to avoid heat overflow. It should be noted that in some embodiments, the heat insulation material is heat insulation cotton 60, and the heat insulation cotton 60 in the first sealing cap 51 is supported by the sealing plate 100, the connecting plate and the fins on the membrane water-cooled wall.

[0055] Ginseng Figure 1 and Figure 6 As shown, in some embodiments, the first outlet header 11 and the first inlet header 12 are both provided with a pipe joint 91 on the side away from the first heat exchange tube group 13, as shown in FIG. Figure 1 As shown, the second outlet header 311 and the second inlet header 312 are connected to the pipe joint 91 through the steam guide pipe 92. The heat exchange of the membrane water-cooled wall is small, so the amount of steam in the membrane water-cooled wall is small, and the steam in the tube is connected to the convection tube bundle 1 through the steam guide pipe 92.

[0056] In some embodiments, the first outlet header 11 is provided with a hanging member 71, and the first inlet header 12 is provided with a supporting seat 72. Figure 1 As shown in the figure, the first sealing cap 51 is provided with a plurality of first through holes, and the pipe joint 91 of the first outlet header 11 and the hanging member 71 are respectively provided with the first through holes and extend to the outside; the second sealing cap 52 is provided with a plurality of second through holes, and the pipe joint 91 of the first inlet header 12 and the support seat 72 are respectively provided with the second through holes and extend to the outside. The water cooling device can be hoisted as a whole through the hanging member 71, and the device can be placed on a foundation or a steel frame through the support seat 72.

[0057] In some embodiments, a first sealing ring is provided between the first sealing cap 51 of the convection tube bundle 1 and the convection tube bundle 1 pipe joint 91 of the first outlet header 11 of the convection tube bundle 1 and in the first through hole of the convection tube bundle 1, and a second sealing ring is provided between the second sealing cap 52 of the convection tube bundle 1 and the convection tube bundle 1 pipe joint 91 of the first inlet header 12 of the convection tube bundle 1 and in the second through hole of the convection tube bundle 1. The first sealing ring and the second sealing ring can improve the sealing performance between the sealing cap and the pipe joint 91.

[0058] The above is a detailed introduction to a water cooling device provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A water cooling device, characterized in that: include: A plurality of convection tube bundles (1), wherein the plurality of convection tube bundles (1) are arranged at intervals, and the convection tube bundle (1) comprises: a first outlet header (11), a first inlet header (12), and a first heat exchange tube group (13) connected therebetween; A plurality of connection components (20), wherein at least one connection component (20) is provided between the first outlet headers (11) of two adjacent convection tube bundles (1), and the connection component (20) is respectively connected to the first outlet headers (11) of the two convection tube bundles (1); and at least another connection component (20) is provided between the first inlet headers (12) of two adjacent convection tube bundles (1), and the another connection component (20) is respectively connected to the first inlet headers (12) of the two convection tube bundles (1).

2. The water cooling device according to claim 1, characterized in that: The plurality of convection tube bundles (1) are arranged at intervals along a first direction, and the first outlet headers (11) and the first inlet headers (12) of the convection tube bundles (1) are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction; Each of the connection components (20) comprises: A first fin (201) and a second fin (202), wherein the first fin (201) and the second fin (202) are connected, and the connected first fin (201) and the second fin (202) are connected between the first outlet headers (11) or between the first inlet headers (12) of two adjacent convection tube bundles (1).

3. The water cooling device according to claim 2, characterized in that: The first fin (201) and the second fin (202) are movably connected.

4. The water cooling device according to claim 1, characterized in that: The water cooling device further comprises a first membrane water-cooled wall (31) and a second membrane water-cooled wall (32), wherein the first membrane water-cooled wall (31) and the second membrane water-cooled wall (32) are arranged at intervals on both sides of the plurality of convection tube bundles (1) along a third direction, and are respectively connected to the plurality of convection tube bundles (1) via connecting pieces, and the third direction is perpendicular to the first direction.

5. The water cooling device according to claim 4, characterized in that: The first membrane water-cooled wall (31) and the second membrane water-cooled wall (32) both comprise a second outlet header (311), a second inlet header (312), and a second heat exchange tube group (313) connected therebetween; The connecting member comprises: a connected mounting pad (42) and a mounting seat (41); the connected mounting pad (42) and the mounting seat (41) are connected between the first outlet header (11) and the second outlet header (311) or between the first inlet header (12) and the second inlet header (312).

6. The water cooling device according to claim 5, characterized in that: The plurality of convection tube bundles (1) are arranged at intervals along a first direction, and the first outlet headers (11) and the first inlet headers (12) of the convection tube bundles (1) are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction; The water cooling device also includes: a first sealing cap (51) and a second sealing cap (52), wherein the first sealing cap (51) and the second sealing cap (52) are arranged at intervals on both sides of the convection tube bundle (1) along the second direction, and together with the first membrane water-cooled wall (31) and the second membrane water-cooled wall (32) form a waste heat recovery channel; A first sealing structure is connected between the first sealing cap (51) and the first membrane water-cooled wall (31), the second membrane water-cooled wall (32) and the first outlet headers (11) of the two outermost convection tube bundles (1); A second sealing structure is connected between the second sealing cap (52) and the first membrane water-cooled wall (31), the second membrane water-cooled wall (32) and the first inlet headers (12) of the two outermost convection tube bundles (1).

7. The water cooling device according to claim 4, characterized in that: A first connecting plate (111) is provided on one side of the first outlet header (11) facing the first membrane water-cooled wall (31) and the second membrane water-cooled wall (32), and the first connecting plate (111) is used to connect the connecting components (20) between the plurality of first outlet headers (11); A second connecting plate (112) is provided on one side of the first inlet header (12) facing the first membrane water-cooled wall (31) and the second membrane water-cooled wall (32), and the second connecting plate (112) is used to connect the connecting components (20) between the plurality of first inlet headers (12).

8. The water cooling device according to claim 7, characterized in that: The first membrane water-cooled wall (31) and the second membrane water-cooled wall (32) are both provided with a third fin (314) on a side facing the first connecting plate (111), and the third fin (314) is movably connected to the first connecting plate (111); The first membrane water-cooled wall (31) and the second membrane water-cooled wall (32) are both provided with fourth fins (315) on the side facing the second connecting plate (112), and the fourth fins (315) are movably connected to the second connecting plate (112).

9. The water cooling device according to claim 6, characterized in that: The first sealing cap (51) and the second sealing cap (52) are both filled with heat-insulating materials.

10. The water cooling device according to claim 6, characterized in that: The first outlet header (11) and the first inlet header (12) are both provided with a pipe joint (91) on a side away from the first heat exchange tube group (13); The second outlet header (311) and the second inlet header (312) are both connected to the pipe joint (91) via a steam guide pipe (92).

11. The water cooling device according to claim 10, characterized in that: The first outlet header (11) is provided with a hanging piece (71), and the first inlet header (12) is provided with a supporting seat (72); The first sealing cap (51) is provided with a plurality of first through holes, and the pipe joint (91) of the first outlet header (11) and the hanging member (71) are respectively provided with the first through holes and extend to the outside; The second sealing cap (52) is provided with a plurality of second through holes, and the pipe joint (91) of the first inlet header (12) and the support seat (72) are respectively provided with the second through holes and extend to the outside.

12. The water cooling device according to claim 11, characterized in that: A first sealing ring is provided between the first sealing cap (51) and the pipe joint (91) of the first outlet header (11) and located in the first through hole, and a second sealing ring is provided between the second sealing cap (52) and the pipe joint (91) of the first inlet header (12) and located in the second through hole.

Images