Protective structure of boiler reheater

Abstract

The utility model discloses a protection structure of a boiler reheater, which comprises a hearth wall surface, one side of the hearth wall surface is fixedly connected with a reheating pouring body, the bottom of the reheating pouring body is provided with a bearing platform, and the bottom of the bearing platform is fixedly connected with a support connected with the ground. The side, close to the hearth wall face, of the bottom of the reheating pouring body is arranged downwards in an inclined mode, the top of the bearing table is provided with an inclined slope face corresponding to the bottom of the reheating pouring body, the outer wall of the bearing table is provided with a binding assembly for fixing the vertical part of the reheating pouring body, and the connecting plate is fixedly connected to the side of the bearing table in a vertical state. According to the utility model, the hearth wall surface, the reheating casting body, the bearing platform and the binding component are matched for use, the bearing platform can support the bottom of the reheating casting body, and the vertical part of the reheating casting body can be bound and fixed again under the action of the binding component; therefore, the stability of the joint of the reheating pouring body and the hearth wall surface is improved.

Description

Technical Field

[0001] The utility model relates to the field of boiler reheaters, in particular to a protective structure of a boiler reheater. Background Art

[0002] There are 6 high-temperature reheaters in the furnace, corresponding to a heating area of ​​919.3m2. The current coverage area of ​​the high-temperature reheater castable is 218.1m2, assuming that the pin area is fully covered by castables. The total heat exchange area of ​​the six screens is 701.1m2. According to the thermal calculation sheet, under the design coal type and 100% BMCR condition, the working fluid inlet and outlet temperatures of the high-temperature reheater are 458℃ and 541℃ respectively.

[0003] When manufacturing the furnace high-temperature reheater, it is usually formed directly using tortoise shell mesh and hanging screen casting materials. However, the reheater is directly cast on the outer wall of the furnace wall as a whole. Therefore, when the reheater is heated and cooled, the reheater will expand and contract due to heat, causing it to deform slightly. In addition, since the reheater is cast with casting materials, it has a certain weight, which leads to cracks or even breaks at the connection between the reheater and the furnace wall, making it inconvenient to support it and improve the stability of the connection between the reheater and the furnace wall. Utility Model Content

[0004] The utility model aims to provide a protection structure for a boiler reheater to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solutions: a protective structure of a boiler reheater, comprising a furnace wall, one side of which is fixedly connected with a reheat cast body;

[0006] A bearing platform is provided at the bottom of the reheat cast body, and a bracket connected to the ground is fixedly connected to the bottom of the bearing platform. The side of the bottom of the reheat cast body close to the furnace wall is inclined downward, and the top of the bearing platform has an inclined slope corresponding to the bottom of the reheat cast body. The outer wall of the bearing platform is provided with a restraining component that fixes the vertical part of the reheat cast body.

[0007] Preferably, the restraint assembly comprises:

[0008] A connecting plate, wherein the connecting plate is vertically fixedly connected to the side of the supporting platform;

[0009] A restraining frame and a clamping assembly, wherein the restraining frame is sleeved on the outer wall of the reheat cast body, and the restraining frame is clamped on the outer wall of the connecting plate through the clamping assembly;

[0010] A fixing assembly is located outside the reheat cast body and is used to position and restrain the connecting plate through a clamping assembly.

[0011] Preferably, the fixing assembly comprises:

[0012] A fixing plate, the fixing plate being located between the connecting plate and the reheat cast body;

[0013] A fixing block and an expansion bolt, wherein the fixing block is fixedly connected to the end of the fixing plate, and the outer wall of the expansion bolt is slidably engaged with the fixing block.

[0014] Preferably, the clamping assembly comprises:

[0015] A connecting frame, wherein the connecting frame is slidably sleeved on an outer wall of the connecting plate;

[0016] A positioning rod is clamped between the connecting plate and the connecting frame.

[0017] Preferably, the connecting frame is fixedly connected to the side of the restraining frame, the outer wall of the positioning rod is slidably inserted and sleeved with the connecting frame, a positioning groove is opened on one side of the connecting plate, the outer wall of the positioning rod is slidably engaged with the inner cavity of the positioning groove, and the outer wall of the positioning rod is slidably sleeved with a limiting spring.

[0018] Preferably, a fixed sleeve is fixedly connected to one side of the connecting frame, a fixed ring is fixedly sleeved on the outer wall of the positioning rod, the fixed ring is slidably sleeved in the inner cavity of the fixed sleeve, the limit spring is located on the side of the fixed ring away from the connecting frame, and the positioning rod is fixedly connected to a handle through the fixed sleeve.

[0019] Technical effects and advantages of the utility model:

[0020] The utility model utilizes the coordinated use of the furnace wall, the reheat cast body, the bearing platform and the restraining assembly. The bearing platform can support the bottom of the reheat cast body, and under the action of the restraining assembly, the vertical part of the reheat cast body can be restrained and fixed again, thereby improving the stability of the connection between the reheat cast body and the furnace wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the front structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the overall structure of the binding frame of the utility model.

[0023] Figure 3 It is a schematic diagram of the internal structure of the connecting frame of the utility model in top view.

[0024] In the figure: 1. furnace wall; 2. reheat cast body; 3. bearing platform; 4. restraining assembly; 41. connecting plate; 42. restraining frame; 43. fixing assembly; 431. fixing plate; 432. fixing block; 433. expansion bolt; 44. clamping assembly; 441. connecting frame; 442. positioning rod; 443. fixing sleeve; 444. fixing collar; 445. limit spring; 446. handle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-3 A protective structure of a boiler reheater shown in the figure comprises a furnace wall 1, a reheat cast body 2 is fixedly connected to one side of the furnace wall 1, a bearing platform 3 is arranged at the bottom of the reheat cast body 2, a bracket connected to the ground is fixedly connected to the bottom of the bearing platform 3, a side of the bottom of the reheat cast body 2 close to the furnace wall 1 is inclined downward, and the top of the bearing platform 3 has an inclined slope corresponding to the bottom of the reheat cast body 2. The bearing platform 3 can support the reheat cast body 2 under the action of the bracket, thereby improving the stability of the reheat cast body 2 cast on one side of the furnace wall 1, and due to the reheat cast body 2 The bottom and the bottom of the supporting platform 3 both have inclined slopes, so that when the reheat cast body 2 has a tendency to move downward, the inclined surface of the bottom of the reheat cast body 2 can squeeze the inclined surface of the top of the supporting platform 3, so that the supporting platform 3 moves away from the furnace wall 1, but under the action of the restraining component 4, the supporting platform 3 can be limited to prevent the supporting platform 3 from moving away from the furnace wall 1, thereby ensuring the stability of the supporting platform 3 supporting the reheat cast body 2. The outer wall of the supporting platform 3 is provided with a restraining component 4 for fixing the vertical part of the reheat cast body 2, and the restraining component 4 can improve the stability of the vertical part of the reheat cast body 2.

[0027] In particular, the restraining assembly 4 includes a connecting plate 41, a restraining frame 42, a fixing assembly 43 and a clamping assembly 44. The connecting plate 41 is fixedly connected to the side of the supporting platform 3 in a vertical state. The restraining frame 42 is sleeved on the outer wall of the reheat cast body 2. The restraining frame 42 is U-shaped, and when the reheat cast body 2 is being cast, usually the side of the reheat cast body 2 that is away from the furnace wall 1 is in contact with the wall or the mounting frame, so that the restraining frame 42 is under the connecting plate 41 and the clamping assembly 44 to prevent the reheat cast body 2 from deviating from its installation surface, that is, leaning against the furnace wall 1. The restraining frame 42 is clamped to the outer wall of the connecting plate 41 through the clamping assembly 44. The fixing assembly 43 is located outside the reheat cast body 2, and the fixing assembly 43 positions and restrains the connecting plate 41 through the clamping assembly 44.

[0028] Furthermore, the fixing assembly 43 includes a fixing plate 431, a fixing block 432 and an expansion bolt 433. The fixing plate 431 is located between the connecting plate 41 and the reheat cast body 2. The fixing block 432 is fixedly connected to the end of the fixing plate 431. The outer wall of the expansion bolt 433 is slidably engaged with the fixing block 432. The fixing block 432 can be fixedly connected to the wall or mounting frame of the reheat cast body 2 through the expansion bolt 433. Then, the fixing plate 431 ensures the stability of the top of the connecting plate 41 through the clamping assembly 44, thereby keeping the connecting plate 41 in a vertically stable state.

[0029] Furthermore, the clamping assembly 44 includes a connecting frame 441 and a positioning rod 442. The connecting frame 441 is slidably sleeved on the outer wall of the connecting plate 41. The positioning rod 442 is clamped between the connecting plate 41 and the connecting frame 441. The connecting frame 441 is fixedly connected to the side of the restraining frame 42, and the side of the fixing plate 431 is also fixedly connected to the connecting frame 441. The outer wall of the positioning rod 442 is slidably inserted and sleeved with the connecting frame 441. A positioning groove is provided on one side of the connecting plate 41, and the number of positioning grooves on one side of the connecting plate 41 is multiple, so that multiple restraining frames 42 and fixing plates 431 can be clamped on the outer wall of the connecting plate 41 through the connecting frame 441 and the positioning rod 442. The outer wall of the positioning rod 442 is slidably clamped with the inner cavity of the positioning groove. The positioning rod 44 2 is slidably sleeved with a limit spring 445, one side of the connecting frame 441 is fixedly connected with a fixed sleeve 443, the outer wall of the positioning rod 442 is fixedly sleeved with a fixed collar 444, the fixed collar 444 is slidably sleeved in the inner cavity of the fixed sleeve 443, the limit spring 445 is located on the side of the fixed collar 444 away from the connecting frame 441, under the action of the limit spring 445, the fixed collar 444 can give an elastic force to the positioning rod 442, so that the positioning rod 442 and the positioning groove on the connecting plate 41 maintain a stable clamping state, the positioning rod 442 passes through the fixed sleeve 443 and is fixedly connected with a handle 446, the handle 446 is used to drive the positioning rod 442 to separate from the connecting plate 41, so that the connecting frame 441 can slide and separate from the connecting plate 41.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective structure for a boiler reheater, comprising a furnace wall (1), a reheat cast body (2) being fixedly connected to one side of the furnace wall (1); It is characterized in that A bearing platform (3) is arranged at the bottom of the reheat cast body (2), a bracket connected to the ground is fixedly connected to the bottom of the bearing platform (3), a side of the bottom of the reheat cast body (2) close to the furnace wall (1) is inclined downward, the top of the bearing platform (3) has an inclined slope corresponding to the bottom of the reheat cast body (2), and the outer wall of the bearing platform (3) is provided with a restraining component (4) for fixing the vertical part of the reheat cast body (2).

2. A boiler reheater protection structure according to claim 1, characterized in that: The restraining assembly (4) comprises: A connecting plate (41), the connecting plate (41) being fixedly connected to a side of the supporting platform (3) in a vertical state; A restraining frame (42) and a clamping assembly (44), wherein the restraining frame (42) is sleeved on the outer wall of the reheat cast body (2), and the restraining frame (42) is clamped on the outer wall of the connecting plate (41) via the clamping assembly (44); A fixing assembly (43), wherein the fixing assembly (43) is located outside the reheat cast body (2), and the fixing assembly (43) positions and restrains the connection plate (41) via a clamping assembly (44).

3. A boiler reheater protection structure according to claim 2, characterized in that: The fixing assembly (43) comprises: A fixing plate (431), wherein the fixing plate (431) is located between the connecting plate (41) and the reheat cast body (2); A fixing block (432) and an expansion bolt (433), wherein the fixing block (432) is fixedly connected to the end of the fixing plate (431), and the outer wall of the expansion bolt (433) is slidably engaged with the fixing block (432).

4. A boiler reheater protection structure according to claim 2, characterized in that: The clamping assembly (44) comprises: A connecting frame (441), wherein the connecting frame (441) is slidably sleeved on an outer wall of the connecting plate (41); A positioning rod (442), wherein the positioning rod (442) is clamped between the connecting plate (41) and the connecting frame (441).

5. A boiler reheater protection structure according to claim 4, characterized in that: The connecting frame (441) is fixedly connected to the side of the restraining frame (42), the outer wall of the positioning rod (442) is slidably inserted and sleeved with the connecting frame (441), a positioning groove is opened on one side of the connecting plate (41), the outer wall of the positioning rod (442) is slidably engaged with the inner cavity of the positioning groove, and the outer wall of the positioning rod (442) is slidably sleeved with a limit spring (445).

6. A boiler reheater protection structure according to claim 5, characterized in that: A fixed sleeve (443) is fixedly connected to one side of the connecting frame (441); a fixed sleeve (444) is fixedly sleeved on the outer wall of the positioning rod (442); the fixed sleeve (444) is slidably sleeved in the inner cavity of the fixed sleeve (443); the limit spring (445) is located on a side of the fixed sleeve (444) facing away from the connecting frame (441); and the positioning rod (442) passes through the fixed sleeve (443) and is fixedly connected to a handle (446).

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