Superheater tube bundle suspension structure

Abstract

The utility model provides a superheater tube bundle suspension structure, and belongs to the technical field of superheater tube bundle suspension. The problem that a pipe bundle cannot be hung due to the fact that a manhole connecting pipe of an existing superheater cannot be welded to a header pipe due to thermal expansion of the header pipe is solved. The device comprises a suspension cross beam, a pulling plate and two bearing supports, the two bearing supports are arranged at the two ends of the bottom of the suspension cross beam respectively, one end of each bearing support is connected with the inner wall of a superheater outer shell barrel, the other end of each bearing support is connected with the suspension cross beam, the pulling plate is arranged at the bottom of the suspension cross beam, and the pulling plate is arranged at the bottom of the suspension cross beam. The top end of the pulling plate is connected with the suspension cross beam, and the bottom end of the pulling plate is connected with the header pipe. The hanger is mainly used for hanging the superheater tube bundle.

Description

Technical Field

[0001] This utility model belongs to the field of superheater tube bundle suspension technology, and in particular relates to a superheater tube bundle suspension structure. Background Technology

[0002] With the rapid development of the power industry, competition in the equipment manufacturing industry is also intensifying. How to further reduce costs and increase efficiency has become a primary concern for manufacturers. Due to limitations in factory layout, serpentine tube vertical heaters, with their small footprint and ease of operation, have been widely used in many power plants. However, for economic reasons while ensuring equipment performance, the internal space of the equipment is often limited. Previously, the upper suspension of serpentine tube vertical equipment required a large space, involved many components, and was inconvenient for maintenance, making it unsuitable for suspension in confined spaces. Furthermore, since the upper space often requires a manhole for manhole maintenance, the manhole connection cannot be directly welded to the manhole pipe due to sealing limitations and considerations of thermal expansion, thus preventing the tube bundle from being suspended. Utility Model Content

[0003] In view of this, the present invention aims to propose a superheater tube bundle suspension structure to solve the problem that the existing superheater manhole pipe cannot be welded to the header pipe to avoid thermal expansion of the header pipe, thus making it impossible to hang the tube bundle.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a superheater tube bundle suspension structure, comprising a suspension beam, a pull plate, and two support supports. The two support supports are respectively disposed at the bottom ends of the suspension beam. One end of each support support is connected to the inner wall of the superheater outer shell, and the other end of the support support is connected to the suspension beam. The pull plate is disposed at the bottom of the suspension beam, with its top end connected to the suspension beam and its bottom end connected to the header pipe.

[0005] Furthermore, the support bracket and the suspension beam are connected by fully threaded studs.

[0006] Furthermore, both the support bracket and the suspension beam are provided with oblong holes that mate with fully threaded studs, and the oblong holes of the support bracket and the suspension beam are correspondingly provided.

[0007] Furthermore, hexagonal nuts are screwed to both ends of the fully threaded stud, and the hexagonal nuts at both ends of the fully threaded stud respectively contact and engage with the suspension beam and the support.

[0008] Furthermore, a fixing plate is provided at one end of the support, and the one end of the support is connected to the inner wall of the superheater outer shell through the fixing plate.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. This utility model provides a superheater tube bundle suspension structure, which is connected to the header tube by a pull plate and suspended by a suspension beam and a support bracket, thus solving the problem that the manhole pipe cannot be welded to the header tube to avoid thermal expansion of the header tube, and therefore the tube bundle cannot be suspended.

[0011] 2. This utility model provides a superheater tube bundle suspension structure. The structure is simple and occupies little space. Compared with the previous large hanging devices, this suspension structure can further reduce the space required for the upper suspension of vertical equipment, require less material and weight, is more economical, and is more suitable for the suspension of large header tubes of vertical heater equipment.

[0012] 3. This utility model provides a superheater tube bundle suspension structure, in which the support and the suspension beam are connected by a fully threaded stud, and a waist-shaped hole that matches the fully threaded stud is opened on the support and the suspension beam, which facilitates the free thermal expansion of the header tube and avoids the suspension structure from cracking due to interference thermal expansion. Attached Figure Description

[0013] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0014] Figure 1 This is a front view schematic diagram of a superheater tube bundle suspension structure according to the present invention;

[0015] Figure 2 This is a top view schematic diagram of a superheater tube bundle suspension structure according to the present invention.

[0016] 1-Supporting bracket, 2-Suspension beam, 3-Fully threaded stud, 4-Hexagonal nut, 5-Pull plate, 6-Header pipe, 7-Superheater outer shell, 8-Fixing pad, 9-Manhole connector. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0018] See Figure 1-2This embodiment describes a superheater tube bundle suspension structure, which includes a suspension beam 2, a pull plate 5, and two support supports 1. The two support supports 1 are respectively located at the bottom ends of the suspension beam 2, providing support for the suspension beam 2. One end of each support support 1 is connected to the inner wall of the superheater outer shell 7, and the other end is connected to the suspension beam 2. The pull plate 5 is located at the bottom of the suspension beam 2, with its top end connected to the suspension beam 2 and its bottom end connected to the header pipe 6. The pull plate 5 is used for the connection between the suspension beam 2 and the header pipe 6. In this embodiment, the header pipe 6 is suspended by connecting the pull plate 5 to the header pipe 6 and by the suspension beam 2 and the support supports 1, which solves the problem that the manhole pipe 9 cannot be welded to the header pipe 6 to avoid thermal expansion, thus preventing tube bundle suspension.

[0019] In this embodiment, the thickness of the pull plate 5 can be determined by stress analysis calculation, which is existing technology and will not be elaborated here. The length of the pull plate 5 can be adjusted according to actual needs.

[0020] In this embodiment, the support 1 and the suspension beam 2 are connected by a fully threaded stud 3. Both the support 1 and the suspension beam 2 are provided with a waist-shaped hole that mates with the fully threaded stud 3. The waist-shaped hole of the support 1 corresponds to the waist-shaped hole of the suspension beam 2. The support 1 and the suspension beam 3 are connected by a fully threaded stud 4. The waist-shaped hole that mates with the fully threaded stud 4 is opened on the support 1 and the suspension beam 3 to facilitate the free thermal expansion of the manifold 6 and avoid the suspension structure from cracking due to interference thermal expansion.

[0021] In this embodiment, the two ends of the fully threaded stud 3 are respectively screwed with hexagonal nuts 4. The hexagonal nuts 4 at both ends of the fully threaded stud 3 are in contact with the suspension beam 2 and the support 1 respectively. The hexagonal nuts 4 are used to fix the suspension beam 2 and the support 1 connected to the fully threaded stud 3.

[0022] In this embodiment, a fixing plate 8 is provided at one end of the support 1. One end of the support 1 is connected to the inner wall of the superheater outer shell 7 through the fixing plate 8. Both sides of the fixing plate 8 are welded to the support 1 and the superheater outer shell 7.

[0023] This embodiment has a simple structure and occupies little space. Compared with the previous large hanging devices, this suspension structure can further reduce the space required for the upper suspension of vertical equipment, requires less material and weight, is more economical, and is more suitable for the suspension of large manifold pipes of vertical heater equipment.

[0024] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A superheater tube bundle suspension structure, characterized in that: It includes a suspension beam (2), a pull plate (5), and two support brackets (1). The two support brackets (1) are respectively located at the bottom ends of the suspension beam (2). One end of the support bracket (1) is connected to the inner wall of the superheater shell (7), and the other end of the support bracket (1) is connected to the suspension beam (2). The pull plate (5) is located at the bottom of the suspension beam (2). The top end of the pull plate (5) is connected to the suspension beam (2), and the bottom end of the pull plate (5) is connected to the header pipe (6).

2. The superheater tube bundle suspension structure according to claim 1, characterized in that: The supporting support (1) and the suspension beam (2) are connected by a fully threaded stud (3).

3. A superheater tube bundle suspension structure according to claim 2, characterized in that: Both the support bracket (1) and the suspension beam (2) are provided with waist-shaped holes that mate with the fully threaded studs (3), and the waist-shaped holes of the support bracket (1) and the suspension beam (2) are provided in correspondence.

4. A superheater tube bundle suspension structure according to claim 3, characterized in that: The two ends of the fully threaded stud (3) are respectively screwed with hexagonal nuts (4), and the hexagonal nuts (4) at both ends of the fully threaded stud (3) are in contact with the suspension beam (2) and the support (1).

5. A superheater tube bundle suspension structure according to claim 1, characterized in that: One end of the support (1) is provided with a fixing pad (8), and one end of the support (1) is connected to the inner wall of the superheater outer shell (7) through the fixing pad (8).

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