A thermal protection device

Abstract

The present invention discloses a thermal protection device, which relates to the field of thermal engineering technology. The device includes a plurality of sub-protection units and connection components connected in sequence. Each sub-protection unit includes at least one cooling water pipe and at least one support plate. The cooling water pipe is used to be arranged on a structural wall. The support plate is arranged in the middle of the cooling water pipe, and the support plate is connected to all cooling water pipes of the sub-protection unit. The support plates of adjacent sub-protection units correspond to each other in the axial direction of the cooling water pipe. The corresponding support plates in adjacent sub-protection units are connected by a connection component, and the connection component is configured so that the corresponding support plates in adjacent sub-protection units can be relatively moved by a set distance in the axial direction. By setting a plurality of sub-protection units, different structural walls can be adapted to achieve better heat insulation and cooling effects. Adjacent sub-protection units can be moved within a set distance in both the axial and radial directions, which solves the problem of excessive thermal stress caused by uncoordinated deformation of the cooling water pipe in an uneven temperature field.

Description

Technical Field

[0001] The present invention relates to the field of thermal engineering technology, and particularly relates to a thermal protection device. Background Art

[0002] In high-temperature structures such as high-temperature furnaces, high-temperature reaction chambers, and high-temperature gas nozzles, the extremely high temperature will greatly reduce the strength of the structure body. Using high-performance high-temperature-resistant materials will result in a very low cost performance ratio of the structure, and there are also limitations in the insufficient ultimate thermal strength of the materials.

[0003] Therefore, at present, the following methods are mostly used to solve the problem of insufficient strength of the structure body at ultra-high temperatures: membrane water wall, a water wall composed of an airtight tube screen formed by welding fins and steel pipes in a row, and heat insulation protection is achieved through the water cooling cycle inside the steel pipes; ablative-resistant materials, using inorganic materials such as refractory bricks and ceramics for heat insulation protection, or absorbing heat through ablative polymer materials to protect the structure; water-cooled jacket structure, a water-cooled jacket is provided outside the structure, and the structure temperature is reduced through the water cooling cycle.

[0004] However, the manufacturing process of the membrane water wall structure is relatively complex, and the presence of fins makes the distribution of thermal stress in the tube screen more complex. Especially in a non-uniform heat load environment, the inconsistent deformation will lead to excessive thermal stress in the structure and failure; inorganic ablative-resistant materials can stably insulate heat at high temperatures for a long time, but their thermal shock resistance is poor, and high-thermal-shock-resistant thermal insulation ceramics are costly, and inorganic ablative-resistant materials have poor maintainability; while polymer ablative materials are mainly applicable to lightweight requirements and short-term thermal protection working conditions, and the cost is extremely high; the main structure of the water-cooled jacket needs to bear the external pressure of the cooling water, and it is difficult to balance the structural anti-instability and structural heat conductivity when the size is large. Summary of the Invention

[0005] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide a thermal protection device to solve the problems in the prior art that due to the long-term protection of the structure body in a non-uniform ultra-high temperature meteorological environment, the deformation is inconsistent, resulting in excessive thermal stress in the thermal protection device, and poor structural stability and seismic resistance.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is:

[0007] The present application provides a thermal protection device, including:

[0008] A plurality of sequentially connected sub-protection units, and each of the above sub-protection units includes:

[0009] - At least one cooling water pipe for being arranged on the structure wall;

[0010] - At least one support plate, which is arranged in the middle of the above-mentioned cooling water pipes. The support plate is connected to all the above-mentioned cooling water pipes of the above-mentioned sub-protection unit, and the positions of the support plates of adjacent above-mentioned sub-protection units correspond in the axial direction of the cooling water pipes;

[0011] A connecting component. The corresponding support plates in adjacent above-mentioned sub-protection units are connected through the above-mentioned connecting component. The above-mentioned connecting component is configured to: enable the corresponding support plates in adjacent above-mentioned sub-protection units to relatively move a set distance in both the axial and radial directions.

[0012] In some alternative embodiments, each of the above-mentioned connecting components includes:

[0013] Side plates, there are two of them, which are respectively connected to both ends of the above-mentioned support plate in the length direction. Each of the above-mentioned side plates is provided with a long hole along the axis direction;

[0014] Connecting bolts, which are configured to pass through the long holes of the side plates on the corresponding support plates in adjacent two above-mentioned sub-protection units to connect the two above-mentioned sub-protection units.

[0015] In some alternative embodiments, each of the above-mentioned sub-protection units includes two above-mentioned cooling water pipes. Adjacent two above-mentioned cooling water pipes are connected through ear plates and are used for snap-fitting with a hanging plate fixed on a structural wall.

[0016] In some alternative embodiments, each of the above-mentioned cooling water pipes includes a water inlet pipe, a water return pipe and a connecting head. The above-mentioned water inlet pipe and the above-mentioned water return pipe are arranged in parallel. The above-mentioned connecting head is a U-shaped part and its two ends are respectively connected to the above-mentioned water inlet pipe and the above-mentioned water return pipe. The outer diameter of the pipe at the bent part of the above-mentioned connecting head is smaller than the outer diameters of the above-mentioned water inlet pipe and the above-mentioned water return pipe.

[0017] In some alternative embodiments, the above-mentioned support plate is configured to have a set linear shape for adapting to the contour line of the structural wall.

[0018] In some alternative embodiments, it further includes a water inlet and return water tank. A partition is arranged in the above-mentioned water inlet and return water tank to divide the above-mentioned water inlet and return water tank into a water inlet chamber and a water return chamber. All the above-mentioned cooling water pipes are fixedly connected to the above-mentioned water inlet and return water tank. And the above-mentioned water return chamber is communicated with all the above-mentioned water return pipes and is communicated with the outside through a plurality of outlet pipes. The above-mentioned water inlet chamber is communicated with all the above-mentioned water inlet pipes and is communicated with the outside through a plurality of water inlets.

[0019] In some alternative embodiments, the above-mentioned water inlet and return water tank further includes a top plate and a bottom plate. The above-mentioned partition is located between the above-mentioned top plate and the above-mentioned bottom plate. The above-mentioned water return pipe is fixedly connected to the above-mentioned top plate and is communicated with the above-mentioned water return chamber. The above-mentioned water inlet pipe passes through the above-mentioned water return chamber and is fixedly connected to the above-mentioned partition and is communicated with the above-mentioned water inlet chamber.

[0020] In some optional embodiments, all of the above-mentioned water outlet pipes pass through the above-mentioned water inlet chamber to connect the above-mentioned water return chamber with the outside, and the above-mentioned water inlet chamber is connected with the outside through the above-mentioned water inlet on the above-mentioned bottom plate.

[0021] In some optional embodiments, the diameter of the water outlet pipe is greater than the diameter of the water return pipe, and the number of the water outlet pipes is less than the number of the water return pipes.

[0022] In some optional embodiments, the top plate, the bottom plate and the partition plate are configured such that their axial projections are linearly matched with the support plate.

[0023] Compared with the prior art, the advantages of the present invention are: by setting up a plurality of sub-protection units connected in sequence, the number of sub-protection units can be flexibly adjusted according to the size of the structural wall to be installed, thereby achieving better thermal insulation and cooling effects on the structure; by connecting all cooling water pipes of each sub-protection unit together through at least one support plate distributed along the axial direction, the stability of the connection between each cooling water pipe is ensured; the connecting component connects two adjacent sub-protection units together, and enables the two sub-protection units to move within a set distance along the axial direction of the cooling water pipe and the length direction of the support plate, thereby solving the problem of uncoordinated isotropic deformation of the cooling water pipe under an uneven temperature field, reserving thermal expansion space for the cooling water pipe, and also improving the overall stiffness and vibration resistance of the cooling water pipe structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural schematic diagram of a thermal protection device of the present invention;

[0026] Figure 2 for Figure 1 A partial enlarged view of middle III;

[0027] Figure 3 for Figure 1 A schematic diagram of an axial side view of a neutron protection unit;

[0028] Figure 4 for Figure 1 AA sectional view of FIG.

[0029] Figure 5 for Figure 4 A partial enlarged view of middle Ⅰ;

[0030] Figure 6 is Figure 1 Schematic diagram of the sectional view in the B-B direction in

[0031] Figure 7 is Figure 6 Partial enlarged view of II in

[0032] Figure 8 is Figure 1 Schematic diagram of the connection between the ear plate and the hanging plate in

[0033] Figure 9 is Figure 8 Schematic diagram of the structure of the hanging plate in

[0034] Figure 10 is Figure 1 Schematic diagram of the structure of the side plate in

[0035] Figure 11 is Figure 1 Schematic diagram of the connection between the water inlet and outlet water tank and the sub-protection unit in

[0036] Figure 12 is Figure 11 Schematic diagram of the structure of the top plate in

[0037] Figure 13 is Figure 11 Schematic diagram of the structure of the partition board in

[0038] Figure 14 is Figure 11 Schematic diagram of the structure of the bottom plate in

[0039] In the figure:

[0040] 1. Sub-protection unit; 11. Cooling water pipe; 111. Water inlet pipe; 112. Water return pipe; 113. Connector; 12. Support plate; 13. Ear plate;

[0041] 2. Connection component; 21. Side plate; 211. Long strip hole; 22. Connection bolt; 221. Positioning pin; 222. End cap;

[0042] 3. Water inlet and outlet water tank; 31. Partition board; 311. Second through hole; 32. Water inlet chamber; 321. Water inlet; 33. Water return chamber; 34. Water outlet pipe; 35. Top plate; 351. First through hole; 36. Bottom plate;

[0043] 4. Hanging plate; 41. Connection plate; 42. Insert plate. Specific implementation method

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0045] The following further elaborates on the embodiments of the present invention with reference to the accompanying drawings.

[0046] As Figures 1 to 3 shown, this application provides a thermal protection device, which includes a plurality of sequentially connected sub-protection units 1 and a connection component 2. Each of the above-mentioned sub-protection units 1 includes at least one cooling water pipe 11 and at least one support plate 12. The above-mentioned cooling water pipe 11 is used to be arranged on the structural wall; the support plate 12 is arranged in the middle of the above-mentioned cooling water pipe 11, and the above-mentioned support plate 12 is connected to all the above-mentioned cooling water pipes 11 of the above-mentioned sub-protection unit 1. The positions of the support plates 12 of adjacent above-mentioned sub-protection units 1 correspond in the axial direction of the above-mentioned cooling water pipe 11; the corresponding support plates 12 in adjacent above-mentioned sub-protection units 1 are connected by the above-mentioned connection component 2, and the above-mentioned connection component 2 is configured to enable the corresponding support plates 12 in adjacent above-mentioned sub-protection units 1 to move a set distance relative to each other in both the axial direction and the radial direction.

[0047] It can be understood that according to the size of the area that needs thermal protection on the structural wall, the corresponding number of sub-protection units 1 are connected by the connection component 2 and installed on the structural wall. In this example, the cooling water pipe 11 is a U-shaped pipe, and each sub-protection unit 1 includes two cooling water pipes 11. The support plate 12 is used to connect the two cooling water pipes 11 in the radial direction, and the number of support plates 12 can be set at intervals according to the length of the cooling water pipe 11.

[0048] When a plurality of sequentially connected sub-protection units 1 are installed on the structural wall, the problem of inconsistent deformation in all directions occurs in the cooling water pipe 11 under a non-uniform temperature field. At this time, since the connection component 2 connects adjacent two sub-protection units 1 in the radial direction and enables adjacent two sub-protection units 1 to move a set distance relative to each other in both the axial direction and the radial direction of the cooling water pipe 11, the above problem is overcome.

[0049] As Figure 4As shown, in some alternative embodiments, each of the above-mentioned connecting components 2 includes a side plate 21 and a connecting bolt 22. There are two side plates 21, which are respectively connected to both ends of the above-mentioned support plate 12 in the length direction. Each of the above-mentioned side plates 21 is provided with a long hole 211 in the axial direction; the connecting bolt 22 is configured to pass through the long holes 211 of the side plates 21 on the corresponding support plates 12 in two adjacent above-mentioned sub-protection units 1 to connect the two above-mentioned sub-protection units 1.

[0050] It can be understood that when connecting two sub-protection units 1 together, the connecting bolt 22 passes through the long holes 211 of the two side plates 21 at the same time, and the two side plates 21 are respectively located at the ends of the corresponding support plates 12 on two adjacent sub-protection units 1. When the deformation of the cooling water pipes 11 of the two sub-protection units 1 is inconsistent in the axial direction, the support plates 12 on the two adjacent cooling water pipes 11 move in the length direction of the long hole 211 through the connecting bolt 22, thus avoiding the problem that the cooling water pipes 11 are structurally damaged due to excessive thermal stress caused by inconsistent deformation.

[0051] In this example, two long holes 211 are arranged at intervals in the axial direction on each side plate 21, and the length directions of the two long holes 211 are both in the same axial direction. A connecting bolt 22 is respectively arranged on the two long holes 211 to connect the support plates 12 of two adjacent sub-protection units 1 together. The advantage of such a setting is that the connection between the two sub-protection units 1 in the radial direction is more stable, and at the same time, it is avoided that when connected by one connecting bolt 22, the two sub-protection units 1 will rotate around the connecting bolt 22, and the moving path of the sub-protection unit 1 along the axial direction is determined.

[0052] It should be noted that the length of the long hole 211 is set according to the deformation range of the cooling water pipe 11, and no specific limitation is made in the embodiments of the present application.

[0053] Preferably, the connecting bolt 22 includes a positioning pin 221 and an end cap 222. The positioning pin 221 passes through the long hole 211, and the end caps 222 are fixed at both ends of the positioning pin 221 so that the two side plates 21 are clamped between the two end caps 222. In this example, the length of the positioning pin 221 is greater than the sum of the thicknesses of the two side plates 21, that is, the two end caps 222 are spaced from the two side plates 21 by a preset distance, so that the two side plates 21 can relatively move a preset distance in the radial direction of the cooling water pipe. The advantage of such a setting is to reserve a deformation space for the adjacent sub-protection units 1 when thermally deformed in the radial direction of the cooling water pipe 11.

[0054] As Figure 7As shown, in some alternative embodiments, each of the above-mentioned sub-protection units 1 includes two of the above-mentioned cooling water pipes 11. Two adjacent cooling water pipes 11 are connected by an ear plate 13 and are used for snap-fitting with a hanging plate 4 fixed on a structural wall.

[0055] It can be understood that the hanging plate 4 is fixed at a position on the structural wall that requires thermal protection. The hanging plate 4 is snap-fitted with the ear plate 13, so that the sub-protection unit 1 is hung on the structural wall. The ear plates 13 on each sub-protection unit 1 are arranged at corresponding positions in the axial direction of the cooling water pipes 11 to facilitate snap-fitting with the hanging plate 4.

[0056] In this example, the ear plate 13 is a U-shaped plate. The two ends of the ear plate 13 are respectively connected to the two cooling water pipes 11. The hanging plate 4 includes a connecting plate 41 and an inserting plate 42. The connecting plate 41 is used for connecting to the structural wall. One end of the inserting plate 42 is connected to the connecting plate 41, and the other end passes through the groove of the U-shaped plate, and the connecting plate 41 abuts against the ear plate 13, so that the sub-protection unit 1 is hung on the structural wall.

[0057] Preferably, a thermal expansion space is reserved between the inserting plate 42 and the ear plate 13 to prevent the inserting plate 42 and the ear plate 13 from being jammed due to thermal expansion, so that the inserting plate 42 can move freely in the groove of the ear plate 13, which is convenient for disassembly and installation. At the same time, a thermal deformation space is reserved for the sub-protection unit 1 in the direction perpendicular to the structural wall.

[0058] It should be noted that in the embodiments of the present application, the two cooling water pipes 11 in each sub-protection unit 1 are spaced apart by a set distance, and preferably a small-spacing and high-density arrangement method is adopted to achieve better cooling and thermal protection of the high-temperature side of the structural wall.

[0059] In some alternative embodiments, each of the above-mentioned cooling water pipes 11 includes a water inlet pipe 111, a water return pipe 112 and a connector 113. The water inlet pipe 111 and the water return pipe 112 are arranged in parallel. The connector 113 is a U-shaped member and its two ends are respectively connected to the water inlet pipe 111 and the water return pipe 112. The outer diameter of the pipe at the bent portion of the connector 113 is smaller than the outer diameters of the water inlet pipe 111 and the water return pipe 112.

[0060] It can be understood that the cooling water pipe 11 is a U-shaped pipe. Cooling water enters from the water inlet pipe 111, flows out from the water return pipe 112 through the connector 113, and the heat of the structural wall is carried away by the flow of the cooling water in the cooling water pipe 11, playing a role in protection and cooling.

[0061] In the embodiments of the present application, the two ends of the connector 113 are connected to the water inlet pipe 111 and the water return pipe 112 by a stepped structure. The purpose of this setting is to increase the welding distance between the connector 113 and the water inlet pipe 111 and the water return pipe 112 during processing, which is convenient for welding.

[0062] In some optional embodiments, the support plate 12 is configured to have a set line shape for adapting to the contour line of the structure wall.

[0063] It can be understood that when the structural wall is cylindrical, the support plate 12 has a set curvature that matches the structural wall, which not only makes the cooling water pipe 11 fit better with the structural wall, but also prevents multiple cooling water pipes 11 from falling off due to radial deformation incoordination or airflow impact. And this arrangement allows multiple sub-protection units 1 to be connected and form a cylindrical structure that matches the structural wall, thereby improving the thermal protection effect of the structural wall.

[0064] In specific implementation, the curvature of the support plate 12 can be specifically set according to the structural wall or the location where it needs to be installed.

[0065] like Figure 11 As shown, in some optional embodiments, the thermal protection device further includes an inlet and return water tank 3, a partition 31 is provided in the inlet and return water tank 3 to separate the inlet and return water tank 3 into an inlet chamber 32 and a return chamber 33, all the cooling water pipes 11 are fixedly connected to the inlet and return water tank 3, and the return water chamber 33 is connected to all the return water pipes 112, and is connected to the outside through a plurality of water outlet pipes 34, and the inlet chamber 32 is connected to all the inlet pipes 111, and is connected to the outside through a plurality of water inlets 321.

[0066] It can be understood that the inlet and return water tanks 3 are connected to the cooling water pipe 11 to provide circulating cooling water for the cooling water pipe 11 .

[0067] In this example, the inlet and return water tank 3 is divided into an inlet chamber 32 and a return chamber 33 by a partition 31, and all the inlet pipes 111 of the multiple sub-protection units 1 are connected to the inlet chamber 32, and all the return pipes 112 of the multiple sub-protection units 1 are connected to the return chamber 33, and the inlet chamber 32 and the return chamber 33 are respectively connected to the outside to allow cooling water to flow from the inlet chamber 32 into the inlet pipe 111, and flow out from the return pipe 112 into the return chamber 33 and be discharged.

[0068] In other embodiments, one sub-protection unit 1 may be configured with one inlet and return water tank 3, but connecting multiple sub-protection units 1 with one inlet and return water tank 3 can reduce the deadweight and size of the structure, which is not only convenient for manufacturing but also has low cost. In specific use, the sub-protection unit 1 and the inlet and return water tank 3 can be specifically configured according to the transportation capacity and the shape of the structural wall, and there is no limitation here.

[0069] Preferably, a second ear plate is provided on the inlet and outlet water tank 3, which cooperates with the ear plate 13 connected to the cooling water pipe 11 and is clamped with the hanging plate 4 provided on the structural wall, so as to hang the whole heat protection device on the structural wall, and the ear plate 13 is located at the end of the cooling water pipe 11 away from the inlet and outlet water tank 3. The advantage of such a setting is that it is convenient for the installation and disassembly of the heat protection device, and the connection with the structural wall is more stable, the fitting degree is better, and the heat protection effect is improved.

[0070] In some alternative embodiments, the above-mentioned inlet and outlet water tank 3 further includes a top plate 35 and a bottom plate 36. The above-mentioned partition plate 31 is located between the above-mentioned top plate 35 and the above-mentioned bottom plate 36. The above-mentioned return water pipe 112 is fixedly connected to the above-mentioned top plate 35 and communicates with the above-mentioned return water chamber. The above-mentioned water inlet pipe 111 passes through the above-mentioned return water chamber 33 and is fixedly connected to the above-mentioned partition plate 31 and communicates with the above-mentioned water inlet chamber 32.

[0071] It can be understood that the return water chamber 33 is between the top plate 35 and the partition plate 31, and the water inlet chamber 32 is between the partition plate 31 and the bottom plate 36. In the embodiment of the present application, the return water chamber 33 and the water inlet chamber 32 are arranged axially. Therefore, the return water chamber 33 communicates with the return water pipe 112 and the water inlet chamber 32 respectively, and the water inlet chamber 32 communicates with the outside. The advantage of such a setting is that the structural size of the inlet and outlet water tank 3 is reduced, the structural setting is simplified, the manufacturing cost is reduced, and it is convenient for installation and transportation.

[0072] In some alternative embodiments, all the above-mentioned outlet pipes 34 pass through the above-mentioned water inlet chamber 32 to communicate the above-mentioned return water chamber 33 with the outside, and the above-mentioned water inlet chamber 32 communicates with the outside through the above-mentioned water inlet 321 on the above-mentioned bottom plate 36.

[0073] Specifically, as Figures 12 to 14 shown, a first through hole 351 corresponding to the return water pipe 112 one by one is opened on the top plate 35, so that the water in the return water pipe 112 flows into the return water chamber 33 through the first through hole 351, and flows into the outlet pipe 34 through the second through hole 311 on the partition plate 31, and is discharged to the outside of the inlet and outlet water tank 3; similarly, the water inlet pipe 111 passes through the top plate 35 and the partition plate 31 and then communicates with the water inlet chamber 32, and cooling water is poured into the water inlet chamber 32 through a plurality of water inlets 321 opened on the bottom plate 36, and then enters the water inlet pipe 111.

[0074] In some alternative embodiments, the diameter of the above-mentioned outlet pipe 34 is larger than the diameter of the above-mentioned return water pipe 112, and the number of the above-mentioned outlet pipes 34 is less than the number of the above-mentioned return water pipes 112.

[0075] This arrangement can increase the discharge rate of the cooled water in the return water chamber 33, while saving pipelines and reducing costs. On the other hand, since the cooling water pipes 11 of the present application are arranged in a high-density and small-pitch manner, the problem of difficulty in welding the high-density return water pipes 112 and the inlet and return water tank 3 is solved by setting a number of outlet water pipes 34 that is less than the number of return water pipes 112 and increasing the spacing between the outlet water pipes 34.

[0076] Preferably, the diameter of the water inlet 321 is greater than the diameter of the water inlet pipe 111 , and the number of the water inlet 321 is less than the number of the water inlet pipes 111 .

[0077] In some optional embodiments, the top plate 35 , the bottom plate 36 , and the partition plate 31 are configured to be projected in the axial direction as a line that matches the support plate 12 .

[0078] It can be understood that in order to facilitate better hanging of the protective device on the structural wall, the top plate 35 , the bottom plate 36 and the partition plate 31 are all configured as arc-shaped plates, and the curvature of the arc-shaped plates is adapted to the curvature of the support plate 12 .

[0079] The working principle of the embodiment of the present application is as follows: according to the area and shape of the structural wall where thermal protection is required, the number of sub-protection units 1 and the curvature of the support plate 12 are determined, and the connecting bolts 22 are passed through the long holes 211 on the side plates 21 of two adjacent sub-protection units 1 to connect the multiple sub-protection units 1 along the radial direction of the cooling water pipe 11, and the two adjacent sub-protection units 1 can move within a preset distance along the radial and axial directions of the cooling water pipe, and then the hanging plate 4 on the structural wall is plugged into and matched with the ear plate 13 on the sub-protection unit 1, so that the above-mentioned thermal protection device can be hung on the structural wall, and thermal deformation space is reserved in the direction perpendicular to the structural wall. At this time, cooling water is injected into the water inlet chamber 32 through the water inlet 321 and flows into the water inlet pipe 111. The cooling water flows out into the return water chamber 33 after passing through the water inlet pipe 111, the connecting head 113 and the return water pipe 112, and is discharged through the water outlet pipe 34.

[0080] A thermal protection device of the present invention is convenient for adapting to different structural walls by arranging sub-protection units, has more usage scenarios, and is easy to transport and install and disassemble; the sub-protection units are connected in sequence by using a connecting assembly, so that two adjacent sub-protection units can move a preset distance in the radial and axial direction of the cooling water pipe, thereby solving the problem of excessive thermal stress caused by uncoordinated anisotropic deformation of the cooling water pipe under an uneven temperature field, and improving the connection stability of multiple sub-protection units and the overall stiffness and seismic resistance of the thermal protection device; by connecting multiple sub-protection units to the inlet and return water tank, and through a larger diameter but fewer water outlet pipes and water inlets, the structural weight and size of the thermal protection device are reduced, while the efficiency of water inlet and return water is improved, and the difficulty of welding the inlet pipe, return pipe and inlet and return water tank is reduced.

[0081] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0082] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0083] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A thermal protection device, characterized in that, Comprising: A plurality of successively connected sub-protection units (1), each of the sub-protection units (1) comprising: - At least one cooling water pipe (11) for being arranged on a structural wall; - At least one support plate (12) arranged in the middle of the cooling water pipe (11), the support plate (12) being connected to all the cooling water pipes (11) of the sub-protection unit (1), and the support plates (12) of adjacent sub-protection units (1) corresponding in position in the axial direction of the cooling water pipe (11); A connection assembly (2), the corresponding support plates (12) in adjacent sub-protection units (1) being connected by the connection assembly (2), the connection assembly (2) being configured to: enable the corresponding support plates (12) in adjacent sub-protection units (1) to relatively move a set distance in both the axial and radial directions; Each of the connection assemblies (2) comprises: Side plates (21), there being two of them, respectively connected to both ends in the length direction of the support plate (12), and each of the side plates (21) being provided with a long hole (211) in the axial direction; Connection bolts (22) configured to pass through the long holes (211) of the side plates (21) on the corresponding support plates (12) in adjacent two sub-protection units (1) to connect the two sub-protection units (1), and the connection bolts (22) being axially and radially displaceable when passing through the long holes (211) of the adjacent side plates (21).

2. The thermal protection device according to claim 1, wherein Each of the sub-protection units (1) comprises two of the cooling water pipes (11), and adjacent two of the cooling water pipes (11) are connected by an ear plate (13) for being snap-fitted with a hanging plate (4) fixed on a structural wall.

3. The thermal protection device according to claim 1, wherein, Each of the cooling water pipes (11) comprises a water inlet pipe (111), a water return pipe (112) and a connection head (113), the water inlet pipe (111) and the water return pipe (112) being arranged in parallel, the connection head (113) being a U-shaped part and having two ends respectively connected to the water inlet pipe (111) and the water return pipe (112), and the outer diameter of the pipe at the bent part of the connection head (113) being smaller than the outer diameters of the water inlet pipe (111) and the water return pipe (112).

4. The thermal protection device according to claim 3, wherein, The support plate (12) is configured to have a set linear shape for adapting to the contour line of a structural wall.

5. The thermal protection device according to claim 4, wherein, Also included is a water inlet and return water tank (3), a partition (31) being arranged in the water inlet and return water tank (3) to divide the water inlet and return water tank (3) into a water inlet chamber (32) and a water return chamber (33), all the cooling water pipes (11) being fixedly connected to the water inlet and return water tank (3), and the water return chamber (33) being communicated with all the water return pipes (112) and being communicated with the outside through a plurality of outlet pipes (34), and the water inlet chamber (32) being communicated with all the water inlet pipes (111) and being communicated with the outside through a plurality of water inlets (321).

6. The thermal protection device according to claim 5, characterized in that, The inlet and return water tank (3) further includes a top plate (35) and a bottom plate (36). The partition plate (31) is located between the top plate (35) and the bottom plate (36). The return water pipe (112) is fixedly connected to the top plate (35) and communicates with the return water chamber (33). The inlet water pipe (111) passes through the return water chamber (33), is fixedly connected to the partition plate (31), and communicates with the inlet water chamber (32).

7. The thermal protection device according to claim 6, wherein All the outlet pipes (34) pass through the inlet water chamber (32) to communicate the return water chamber (33) with the outside. The inlet water chamber (32) communicates with the outside through the water inlet (321) on the bottom plate (36).

8. The thermal protection device according to claim 6, wherein, The diameter of the outlet pipe (34) is larger than the diameter of the return water pipe (112), and the number of the outlet pipes (34) is smaller than the number of the return water pipes (112).

9. The thermal protection device according to claim 6, wherein The top plate (35), the bottom plate (36) and the partition plate (31) are all configured such that their projections in the axial direction are linear shapes adapted to the support plate (12).

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