Boiler front enclosure wall fixing device and boiler front enclosure wall
By connecting the clamping plate assembly and locking plate assembly of the boiler front wall fixing device, the non-load-bearing pipe and the load-bearing pipe are clamped and fixed. Combined with the expansion bend to absorb thermal stress, the stability problem of the boiler front wall during the start-up and shutdown phases is solved, and the safe and stable operation of the unit is achieved.
Patent Information
- Application Number
- CN202520502757.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Uneven distribution of working fluid flow in the boiler front wall during start-up and shutdown can lead to excessive temperature deviation on the pipe wall, generating thermal stress that may cause pipe rupture and affect the safe and stable operation of the unit.
The boiler front wall fixing device includes a clamping plate assembly and a locking plate assembly. The clamping plate assembly clamps and fixes the non-load-bearing pipe and the load-bearing pipe. The locking plate assembly connects multiple clamping plate assemblies into a whole to enhance the overall rigidity. Expansion bends are set on the non-load-bearing pipe to absorb thermal expansion and contraction stress and vibration.
This improves the structural stability of the boiler front wall, prevents wavy bending deformation, and ensures the safe and stable operation of the boiler unit.
Smart Images
Figure CN223882312U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power generation boiler equipment technical field especially relates to a boiler front package wall fixing device and boiler front package wall. BACKGROUND
[0002] The front package wall of power generation boiler is also called package wall pipe superheater, which is composed of upper pipe group and lower diaphragm, and the front package wall can simplify the furnace wall structure, reduce the weight of furnace wall, and is beneficial to realize the full suspension form of boiler, and the front package wall can also improve the tightness of filtration and reduce air leakage. SUMMARY
[0003] The utility model discloses a boiler front package wall fixing device and boiler front package wall, which can improve the structural stability of the boiler front package wall and ensure the safe operation of the boiler unit.
[0004] To achieve this purpose, the utility model adopts the following technical scheme:
[0005] The boiler front package wall fixing device comprises:
[0006] At least two clamping plate groups, the clamping plate group comprises a first pipe clamp, a second pipe clamp and a fixed plate, the pipe group comprises a non-load-bearing pipe and a load-bearing pipe arranged vertically respectively, the first pipe clamp is used for abutting against the non-load-bearing pipe, the second pipe clamp is used for abutting against the load-bearing pipe of the same pipe group, the fixed plate abuts against the non-load-bearing pipe and the load-bearing pipe respectively, and the two ends of the first pipe clamp and the two ends of the second pipe clamp are fixedly connected to the fixed plate.
[0007] The fixed plate of the clamping plate group is fixedly connected to the lock plate assembly.
[0008] As preferably, the clamping plate group further comprises a support, the support is arranged on the load-bearing pipe, and the fixed plate abuts against the support vertically.
[0009] As preferably, the two ends of the first pipe clamp and the second pipe clamp are provided with end plates, and the end plates are welded to the fixed plate.
[0010] As preferably, a first insertion slot is formed in the fixed plate, and the end plate is inserted into the first insertion slot.
[0011] As preferably, a second insertion slot is formed in the end plate opposite to the first insertion slot.
[0012] As preferably, the lock plate assembly comprises a first lock plate and a second lock plate, and the fixed plate is fixedly connected with the first lock plate and the second lock plate at two ends along the length direction respectively.
[0013] As preferably, the first lock plate and the second lock plate are both provided with a third slot, and the fixed plate is inserted in the third slot.
[0014] As preferably, a fourth slot is provided on the fixed plate opposite to the third slot.
[0015] As preferably, a flexible gasket is clamped between the first pipe clamp and the non-load-bearing pipe and between the second pipe clamp and the load-bearing pipe.
[0016] The boiler front wall is provided with the boiler front wall fixing device, and the pipe groups are connected through the boiler front wall fixing device, so that the pipe groups are fixedly connected to form an integrated whole, and the integrity and stability of the whole boiler front wall are improved.
[0017] The non-load-bearing pipe is provided with an expansion bend.
[0018] The boiler front wall fixing device provided by the utility model has the advantages that:
[0019] The boiler front wall fixing device provided by the utility model has the advantages that:
[0020] The boiler front wall provided by the utility model comprises pipe groups and the boiler front wall fixing device, the pipe groups are connected through the boiler front wall fixing device, so that the pipe groups are fixedly connected to form an integrated whole, and the integrity and stability of the whole boiler front wall are improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1is a top view of the pipe group and the boiler front wall fixing device provided by the embodiment of the utility model;
[0022] Figure 2 is a side view of the pipe group and the clamp plate group provided by the embodiment of the utility model;
[0023] Figure 3 is a top view of the first pipe clamp provided by the embodiment of the utility model;
[0024] Figure 4 is a side view of the first pipe clamp provided by the embodiment of the utility model;
[0025] Figure 5 is a side view of the fixing plate provided by the embodiment of the utility model;
[0026] Figure 6 is a structural schematic view of the expansion bend provided by the embodiment of the utility model.
[0027] In the drawings:
[0028] 100-pipe group; 110-non-bearing pipe; 111-expansion bend; 120-bearing pipe;
[0029] 1-clamp plate group; 11-first pipe clamp; 12-second pipe clamp; 13-fixing plate; 131-first insertion slot; 132-fourth insertion slot; 14-supporting piece; 15-end plate; 151-second insertion slot;
[0030] 2-lock plate assembly; 21-first lock plate; 22-second lock plate. EMBODIMENT
[0031] The utility model will be further explained in detail below in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.
[0032] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0033] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is on, above and on of second feature includes that first feature is directly above and obliquely above of second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature is under, below and under of second feature includes that first feature is directly below and obliquely below of second feature, or only indicates that horizontal height of first feature is less than second feature.
[0034] In the description of the embodiment, the terms "upper", "lower", "right", "left" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0035] As shown in Figure 1 And Figure 2 The utility model provides a boiler front package wall fixing device, the boiler front package wall fixing device includes at least two clamping plate group 1 and lock plate subassembly 2, clamping plate group 1 includes first pipe clamp 11, second pipe clamp 12 and fixed plate 13, and pipe group 100 includes the non-load-bearing tube 110 and load-bearing tube 120 that are vertically arranged respectively, first pipe clamp 11 is used to be in close contact with non-load-bearing tube 110, second pipe clamp 12 is used to be in close contact with the load-bearing tube 120 of same pipe group 100, fixed plate 13 is respectively in close contact with non-load-bearing tube 110 and load-bearing tube 120, and both ends of first pipe clamp 11 and both ends of second pipe clamp 12 are fixedly connected to fixed plate 13, the fixed plate 13 of clamping plate group 1 is fixedly connected to lock plate subassembly 2. In the embodiment, since first pipe clamp 11 and second pipe clamp 12 are in close contact with non-load-bearing tube 110 and load-bearing tube 120 respectively, fixed plate 13 is in close contact with non-load-bearing tube 110 and load-bearing tube 120 respectively, and both ends of first pipe clamp 11 and both ends of second pipe clamp 12 are fixedly connected to fixed plate 13, so clamping plate group 1 clamps and fixes non-load-bearing tube 110 and load-bearing tube 120 of same pipe group 100, to guarantee the stability of boiler front package wall in the running process, since the fixed plate 13 of all clamping plate group 1 is fixedly connected to lock plate subassembly 2, so multiple clamping plate group 1 and pipe group 100 are connected as a whole through lock plate subassembly 2, improve the integrity and rigidity of all pipe group 100, prevent the front package wall from appearing wavy bending deformation in the running process of boiler, to further guarantee the safe and stable operation of boiler unit.
[0036] Specifically, each pipe group 100 includes a bearing pipe 120 and a non-bearing pipe 110, the first pipe clamp 11 and the second pipe clamp 12 are identical in structure and shape, and are both U-shaped pipe clamps commonly used in the art, and the bearing pipe 120 and the non-bearing pipe 110 are clamped to the fixed plate 13 by the second pipe clamp 12 and the first pipe clamp 11 respectively.
[0037] In order to fix the vertical position of the first pipe clamp 11, the second pipe clamp 12 and the fixed plate 13, as shown in the drawings, the clamp plate group 1 further includes a support 14, which is arranged on the bearing pipe 120 and abuts against the support 14 along the vertical direction of the fixed plate 13; the support 14 can reduce the vertical displacement of the pipe group 100, thereby ensuring the stability of the front wall of the boiler unit during operation. Figure 2
[0038] Further, the first pipe clamp 11 and the second pipe clamp 12 are both provided with an end plate 15, which is welded to the fixed plate 13; specifically, the two ends of the first pipe clamp 11 and the two ends of the second pipe clamp 12 extend to form the end plate 15, which is welded to the fixed plate 13, thereby ensuring the connection strength of the pipe clamp and the fixed plate 13.
[0039] As shown in the drawings, Figure 2 and Figure 5 the fixed plate 13 is provided with a first slot 131, and the end plate 15 is inserted into the first slot 131, thereby enhancing the limiting effect of the fixed plate 13 on the end plate 15, increasing the contact area and the seam length of the fixed plate 13 and the end plate 15, and further improving the welding quality; specifically, the first slot 131 extends to the upper end surface of the fixed plate 13 along the vertical direction, and when assembling the clamp plate group 1, the first pipe clamp 11 is lowered along the vertical direction, the end plate 15 of the first pipe clamp 11 is inserted into the first slot 131, and then the seam around the first slot 131 is welded to the end plate 15, and the connection between the second pipe clamp 12 and the fixed plate 13 is the same as this.
[0040] Further, as shown in the drawings, Figures 2 to 5 the end plate 15 is provided with a second slot 151 opposite the first slot 131, and the second slot 151 extends to the lower end surface of the end plate 15 along the vertical direction; when the end plate 15 is inserted into the first slot 131, the fixed plate 13 is inserted into the second slot 151, and the seam around the second slot 151 is welded to the fixed plate 13, thereby increasing the contact area and the seam length of the fixed plate 13 and the end plate 15 without adding additional structures, and further improving the connection strength and stability of the fixed plate 13 and the pipe clamp.
[0041] As shown in the drawings, Figure 1 As shown, the lock plate assembly 2 comprises a first lock plate 21 and a second lock plate 22, and the two ends of the fixed plate 13 in the length direction are fixedly connected with the first lock plate 21 and the second lock plate 22 respectively. The first lock plate 21 and the second lock plate 22 are the same in structure and shape, both of which are rectangular plates. The first lock plate 21 and the second lock plate 22 are respectively welded with the two ends of the fixed plate 13 in the length direction, which greatly improves the fixing ability of the lock plate assembly 2 to the clamp plate group 1 and can effectively prevent the bending deformation of the boiler unit caused by the large temperature difference between the pipe groups 100 during operation.
[0042] In order to further improve the connection strength and stability of the fixed plate 13 and the lock plate assembly 2, the third slot is arranged on the first lock plate 21 and the second lock plate 22, and the fixed plate 13 is inserted into the third slot. Specifically, the combination mode of the fixed plate 13 and the first lock plate 21 is the same as that of the fixed plate 13 and the end plate 15. The third slot is arranged on the first lock plate 21 and extends to the upper end surface of the first lock plate 21 in the vertical direction. When the fixed plate 13 is installed on the first lock plate 21, the fixed plate 13 is inserted into the third slot by lowering the fixed plate 13 in the vertical direction. Then, the joint between the fixed plate 13 and the third slot is welded. The assembly mode of the fixed plate 13 and the second lock plate 22 is the same as this.
[0043] Further, the fourth slot 132 is arranged on the fixed plate 13 opposite to the third slot. When the fixed plate 13 is inserted into the third slot, the first lock plate 21 is inserted into the fourth slot 132, and the joint between the fourth slot 132 and the first lock plate 21 is welded. Thus, without adding additional structures, the contact area and the joint length between the fixed plate 13 and the first lock plate 21 can be increased, and the connection strength and stability of the fixed plate 13 and the first lock plate 21 are further improved. The assembly mode of the fixed plate 13 and the second lock plate 22 is the same as this.
[0044] Further, the flexible gasket is arranged between the first pipe clamp 11 and the non-bearing pipe 110 and between the second pipe clamp 12 and the bearing pipe 120. The flexible gasket can absorb vibration and impact, thereby improving the stability of the abutment between the pipe clamp and the pipeline and effectively protecting the pipeline. Specifically, the flexible gasket is made of sponge or rubber.
[0045] The embodiment also provides a boiler front wall, as shown in the figure. Figure 6 As shown, the boiler front wall comprises the pipe group 100 and the boiler front wall fixing device described above. The pipe group 100 is provided with at least two pipe groups 100, and the at least two pipe groups 100 are connected by the boiler front wall fixing device. The non-bearing pipe 110 is provided with the expansion bend 111, Figure 6The boiler front wall fixing device connected on the pipe group 100 is not shown in the figure. In the embodiment, the pipe group 100 is arranged in one-to-one correspondence with the clamp plate group 1, and the pipe group 100 is connected through the boiler front wall fixing device, thereby forming a fixedly connected whole, improving the integrity and stability of the whole boiler front wall. At the same time, since the expansion bend 111 is arranged on the non-load-bearing pipe 110, the expansion bend 111 can absorb the stress generated by the thermal expansion and contraction of the pipe, thereby compensating for the thermal expansion of the pipe, and can also absorb the vibration generated during the operation of the pipe, to ensure that the whole system operates stably and reliably. Specifically, the pipe group 100 is arranged with a plurality of boiler front wall fixing devices in the length direction to ensure good fixation of the pipe group 100; the expansion bend 111 is a U-shaped or door-shaped section of bent pipe on the non-load-bearing pipe 110, and is arranged at the upper part of all the boiler front wall fixing devices in the height direction.
[0046] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A boiler front wall anchoring device, characterized in that, The utility model relates to a boiler front wall fixing device, which comprises at least two clamping plate groups (1) and a locking plate assembly (2). The clamping plate group (1) comprises a first pipe clamp (11), a second pipe clamp (12) and a fixing plate (13), and the pipe group (100) comprises a non-load-bearing pipe (110) and a load-bearing pipe (120) arranged vertically. The first pipe clamp (11) is used to abut against the non-load-bearing pipe (110), the second pipe clamp (12) is used to abut against the load-bearing pipe (120) of the same pipe group (100), and the fixing plate (13) abuts against the non-load-bearing pipe (110) and the load-bearing pipe (120) respectively.
2. The boiler front wall anchoring device of claim 1, wherein The two ends of the first pipe clamp (11) and the two ends of the second pipe clamp (12) are fixedly connected to the fixing plate (13).
3. The boiler front wall anchoring device of claim 1, wherein, The locking plate assembly (2) is fixedly connected to the fixing plate (13) of the clamping plate group (1).
4. The boiler front wall anchoring device of claim 3, wherein, The clamping plate group (1) further comprises a support (14) arranged on the load-bearing pipe (120), and the fixing plate (13) abuts against the support (14) vertically.
5. The boiler front wall anchoring device of claim 4, wherein, The two ends of the first pipe clamp (11) and the two ends of the second pipe clamp (12) are provided with end plates (15) which are welded to the fixing plate (13).
6. The boiler front wall anchoring device of claim 1, wherein, A first insertion slot (131) is formed in the fixing plate (13), and the end plate (15) is inserted into the first insertion slot (131).
7. The boiler front wall anchoring device of claim 6, wherein, A second insertion slot (151) is formed in the end plate (15) opposite to the first insertion slot (131).
8. The boiler front wall anchoring device of claim 7, wherein, The locking plate assembly (2) comprises a first locking plate (21) and a second locking plate (22), and the two ends of the fixing plate (13) are fixedly connected to the first locking plate (21) and the second locking plate (22) respectively.
9. The boiler front wall anchoring device of claim 1, wherein, A third insertion slot is formed in the first locking plate (21) and the second locking plate (22), and the fixing plate (13) is inserted into the third insertion slot.
10. A boiler front wall characterized by A fourth insertion slot (132) is formed in the fixing plate (13) opposite to the third insertion slot. Flexible gaskets are arranged between the first pipe clamp (11) and the non-load-bearing pipe (110) and between the second pipe clamp (12) and the load-bearing pipe (120). The utility model relates to a boiler front wall fixing device, which comprises at least two clamping plate groups (1) and a locking plate assembly (2). An expansion bend (111) is arranged on the non-load-bearing pipe (110).