Elastic multidirectional supporting type reheater tube stack structure

Abstract

The utility model discloses an elastic multidirectional support type reheater tube group structure, which comprises a mounting seat and a U-shaped plate, four groups of tube seats are arranged at the top of the mounting seat, a tube group is arranged at the tops of the four groups of tube seats, four groups of guide rods are sleeved at the top of the U-shaped plate, a top plate is arranged at the bottoms of the four groups of guide rods, and the top plate is arranged at the bottom of the U-shaped plate. The outer sides of the four groups of guide rods are sleeved with springs B; through mutual cooperation of the sliding groove, the sliding block, the spring A, the top plate, the guide rod, the spring B, the push block and the side clamping plates, after the U-shaped plate is installed, the device can drive the top plate to conduct elastic clamping from the top of a pipe set, and meanwhile the two sets of side clamping plates can conduct elastic clamping on the pipe set from the two sides of the pipe set under pushing of the push block; therefore, elastic multi-direction supporting and fixing of the pipe set are achieved, the fixing stability of the pipe set can be improved, the heating expansion amplitude of the pipe set can be adapted, and the pipe set is prevented from being restrained too tightly and damaged.

Description

Technical Field

[0001] This utility model relates to the field of reheater tube assembly technology, specifically to a flexible multi-directional support reheater tube assembly structure. Background Technology

[0002] A reheater is essentially a steam superheater that reheats low-pressure steam that has already done work to a certain temperature. The reheater further improves the thermal efficiency of the power plant cycle and keeps the steam temperature of the turbine's last-stage blades within an acceptable range. The reheater tube bundle is an important component of the reheater, playing a crucial role in transporting and participating in heat exchange. When installing the reheater tube bundle, its fixed stability is very important.

[0003] The existing patent with authorization announcement number "CN202869352U" discloses a reheater and its tube assembly clamp, including two connecting plates arranged along the extension direction of the tube assembly and multiple intermediate plates connecting the two connecting plates. The two adjacent intermediate plates and the two connecting plates form a receiving hole for accommodating a single tube in the tube assembly. The tube assembly clamp provided by this utility model has an increased axial constraint area between the receiving hole and the single tube, which makes it less likely for the single tube to experience axial force concentration. This greatly reduces the deformation and fracture degree of the tube assembly clamp, thereby reducing the squeezing force caused by its deformation and the resulting sharp edges on the single tube it encircles. This reduces the bending deformation of the single tube and the degree of outer wall concavity deformation, thereby improving the safety of the reheater operation using the clamp provided by this utility model.

[0004] However, this device has the following shortcomings:

[0005] When the above-mentioned device is used to fix the pipe assembly, its support surface is relatively simple, the fixing effect is poor, the pipe assembly is prone to shaking, reducing the stability of the pipe assembly, and the rigid fixing method can lead to excessive restraint force on the pipe assembly when the pipe assembly is heated and expanded, which can cause the pipe assembly to break. Utility Model Content

[0006] The purpose of this invention is to provide a flexible multi-directional supported reheater tube assembly structure to solve the existing problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an elastic multi-directional support reheater tube assembly structure, including a mounting base and a U-shaped plate. The top of the mounting base is provided with four sets of tube seats, the top of the four sets of tube seats is provided with tube assemblies, the top of the U-shaped plate is fitted with four sets of guide rods, the bottom of the four sets of guide rods is provided with a top plate, and the outer side of the four sets of guide rods is fitted with springs B.

[0008] The mounting base has multiple sets of sliding grooves on its top, and sliders are slidably connected to the inner side of the multiple sets of sliding grooves. The top of the multiple sets of sliders is provided with side clamps that cooperate with the tube assembly. Spring A is provided on the side of the multiple sets of sliders near the tube base. Multiple sets of push blocks are provided on the top of the inner side of the U-shaped plate.

[0009] Preferably, threaded holes are provided on both sides of the top of the mounting base, and sleeve blocks are provided on both sides of the U-shaped plate. Fixing bolts that are adapted to the threads of the threaded holes are fitted on the inner side of the sleeve blocks for fixing the mounting base and the U-shaped plate.

[0010] Preferably, the inner sides of the tube seat, top plate and side clamp are all provided with buffer pads, and the buffer pads are made of aluminum silicate fiber. The buffer pads can buffer the clamping damage to the tube assembly. Aluminum silicate fiber has excellent high temperature resistance and can be used in the high temperature environment of the reheater tube assembly.

[0011] Preferably, multiple sets of the sliding grooves are distributed on both sides of the pipe seat, and symmetrical side clamps are provided on the top of each pair of sliding grooves, so that side clamps are distributed on both sides of each pipe group to clamp it.

[0012] Preferably, the top surface of the side clamp is arc-shaped, and the push block is triangular. When the pipe assembly is fixed, the arc-shaped top surface of the side clamp can fit against the inclined surface of the push block, thereby pushing the side clamp closer to the pipe assembly to support both sides of the pipe assembly.

[0013] Preferably, a limit block is provided at the top of the guide rod, which can limit the range of motion of the guide rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the elastic multi-directional support reheater tube assembly structure;

[0015] 1. Through the cooperation of the slide, slider, spring A, top plate, guide rod, spring B, push block and side clamping plate, the device can drive the top plate to elastically clamp the tube assembly from the top after the U-shaped plate is installed. At the same time, the two sets of side clamping plates can also elastically clamp the tube assembly from both sides under the push of the push block, thereby realizing elastic multi-directional support and fixation of the tube assembly, which can improve the fixation stability of the tube assembly, and can adapt to the thermal expansion range of the tube assembly, preventing the tube assembly from being confined too tightly and breaking.

[0016] 2. Through the cooperation between the top plate, U-shaped plate and side clamping plate, after the U-shaped plate is installed, the U-shaped plate can cover the outside of the top plate and side clamping plate to protect the clamps and prevent the clamps from being damaged by external impacts, thereby affecting the fixing effect on the pipe assembly. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is the front sectional view of the present invention.

[0019] In the diagram: 1. Mounting base; 2. Slide groove; 3. Slider; 4. Spring A; 5. Pipe seat; 6. Pipe assembly; 7. Threaded hole; 8. Fixing bolt; 9. Sleeve block; 10. Top plate; 11. Guide rod; 12. Spring B; 13. Push block; 14. U-shaped plate; 15. Side clamping plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-2 The present invention provides an embodiment of an elastic multi-directional support reheater tube assembly structure, including a mounting base 1 and a U-shaped plate 14. The top of the mounting base 1 is provided with four sets of tube seats 5, and the top of the four sets of tube seats 5 is provided with tube assemblies 6. The top of the U-shaped plate 14 is fitted with four sets of guide rods 11, and the top of the guide rods 11 is provided with limit blocks, which can limit the range of motion of the guide rods 11. The bottom of the four sets of guide rods 11 is provided with a top plate 10, and the outer side of the four sets of guide rods 11 is fitted with springs B12.

[0022] The top of the mounting base 1 has multiple sets of sliding grooves 2, and the inner side of the multiple sets of sliding grooves 2 is slidably connected to sliders 3. The top of the multiple sets of sliders 3 is provided with side clamps 15 that cooperate with the tube assembly 6. The inner side of the tube base 5, the top plate 10 and the side clamps 15 are all provided with buffer pads, and the buffer pads are made of aluminum silicate fiber. The buffer pads can buffer the clamping damage to the tube assembly 6. Aluminum silicate fiber has excellent high temperature resistance and can be used in the high temperature environment of the reheater tube assembly.

[0023] Multiple sets of sliders 3 are provided with springs A4 near the tube seat 5. Multiple sets of push blocks 13 are provided on the top inner side of the U-shaped plate 14. The top surface of the side clamping plate 15 is arc-shaped, and the push block 13 is triangular. When the tube group 6 is fixed, the arc-shaped top surface of the side clamping plate 15 can fit with the inclined surface of the push block 13, thereby pushing the side clamping plate 15 closer to the tube group 6 to support both sides of the tube group 6.

[0024] The mounting base 1 has threaded holes 7 on both sides of its top. The U-shaped plate 14 has sleeve blocks 9 on both sides. The inner side of the sleeve blocks 9 is fitted with fixing bolts 8 that are threaded to the threaded holes 7, which are used to fix the mounting base 1 and the U-shaped plate 14. After the U-shaped plate 14 is snapped into the top of the mounting base 1, the fixing bolts 8 can be screwed into the threaded holes 7 to complete the fixing of the pipe assembly 6.

[0025] Working principle: When installing this device, first fix the mounting base 1 to the ground, then place the pipe assembly 6 on top of the pipe base 5 for positioning, then fasten the U-shaped plate 14 to the top of the mounting base 1, and lock the fixing bolt 8 and threaded hole 7 together. At this time, the top plate 10 can fit against the top surface of the pipe assembly 6. When locking, it can move upward by overcoming the elastic force of the spring B12 through the guide rod 11. After locking, the top of the pipe assembly 6 can be elastically supported by the elastic force of the spring B12. When locking, the inclined surface of the push block 13 can fit against the arc-shaped surface of the top of the side clamping plate 15. During the locking process, the side clamping plate 15 can be gradually pushed to move closer to the pipe assembly 6 by overcoming the elastic force of the spring A4. After locking, the side clamping plate 15 can be elastically clamped on both sides of the pipe assembly 6, thereby providing multi-faceted clamping support for the pipe assembly 6. This can prevent the pipe assembly 6 from shaking after installation, and due to the elastic support of the pipe assembly 6, the pipe assembly 6 will expand due to heat.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A flexible multi-directional support type reheater tube bank structure comprising a mounting seat (1) and a U-shaped plate (14), characterized in that: The top of the mounting base (1) is provided with four groups of pipe bases (5), the top of the four groups of pipe bases (5) is provided with pipe groups (6), the top of the U-shaped plate (14) is sleeved with four groups of guide rods (11), the bottom of the four groups of guide rods (11) is provided with top plates (10), and the outer side of the four groups of guide rods (11) is sleeved with springs B (12); A plurality of slide grooves (2) are formed in the top of the mounting base (1), a plurality of slide blocks (3) are slidably connected to the inner sides of the slide grooves (2), a plurality of side clamping plates (15) that are matched with the pipe groups (6) are arranged at the top of the slide blocks (3), a plurality of springs A (4) are arranged on the side of the slide blocks (3) close to the pipe bases (5), and a plurality of push blocks (13) are arranged at the top of the inner side of the U-shaped plate (14).

2. A flexible multi-directional support type reheater tube bank structure according to claim 1, characterized in that: Threaded holes (7) are formed in the two sides of the top of the mounting base (1), sleeve blocks (9) are arranged on the two sides of the U-shaped plate (14), and fixed bolts (8) that are threadedly matched with the threaded holes (7) are sleeved on the inner sides of the sleeve blocks (9).

3. A flexible multi-directional support type reheater tube bank structure according to claim 1, characterized in that: The inner sides of the pipe bases (5), the top plates (10) and the side clamping plates (15) are all provided with buffer pads made of aluminum silicate fiber.

4. A flexible multi-directional support type reheater tube bank structure according to claim 1, characterized in that: A plurality of slide grooves (2) are arranged on the two sides of the pipe bases (5), and symmetrical side clamping plates (15) are arranged at the top of every two slide grooves (2).

5. A flexible multi-directional support type reheater tube bank structure according to claim 1, characterized in that: The top surface of the side clamping plate (15) is arc-shaped, and the push block (13) is triangular.

6. A flexible multi-directional support type reheater tube bank structure according to claim 1, characterized in that: The top of the guide rod (11) is provided with a limiting block.

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