A power plant steam delivery pipe structure

Abstract

The utility model discloses a power plant steam delivery pipeline structure relates to steam pipeline technical field, include: steam pipeline main part, steam pipeline main part's outside is equipped with the pipe cover, the pipe cover is by first arc assembly cover and second arc assembly cover combination, first arc assembly cover and second arc assembly cover outer wall's upper and lower surface all integrative setting has the assembly frame, the inside of first arc assembly cover and second arc assembly cover all is provided with arc groove, the inside of arc groove is filled with a plurality of transverse interval arrangement distribution's heat -preserving cotton block, arc groove is close to the one end of assembly frame in upper portion and is provided with a plurality of transverse interval arrangement's opening. The inconvenient problem of overhaul and dismounting of existing steam pipeline heat preservation protection structure is solved.

Description

Technical Field

[0001] This utility model relates to the field of steam pipeline technology, specifically a steam transmission pipeline structure for power plants. Background Technology

[0002] Steam pipelines in power plants are crucial systems for transporting steam generated by boilers to steam turbines in thermal power plants, and are one of the core components of the power generation system. With the continuous development of long-distance steam pipeline transportation technology, thermal insulation layers are required to cover the outside of the pipelines to reduce heat loss.

[0003] For example, announcement number CN212226433U, entitled "A Steam Pipeline", includes a pipeline body, which is formed by welding multiple steam branch pipes in sequence. The pipeline body is provided with an insulation jacket, and an outer protective layer is provided outside the insulation jacket. The insulation jacket includes multiple first insulation layers and multiple second insulation layers. The first insulation layers are correspondingly installed on each steam branch pipe, and the length of the first insulation layer is less than the length of the steam branch pipe. The second insulation layer is installed between two adjacent first insulation layers, and the two end faces of the second insulation layer abut against the end faces of the two first insulation layers respectively. The outer protective layer includes multiple first protective layers and multiple second protective layers. The first protective layers are installed outside the first insulation layers, and the second protective layers are installed outside the second insulation layers.

[0004] While the existing steam pipelines described above allow for partial maintenance and avoid complete dismantling by segmenting the insulation layer and outer protective layer, the insulation layer still wraps around the pipeline and is secured by fasteners such as clamping discs, positioning rings, rivets, and positioning components. Disassembly requires removing these fasteners first, making the operation relatively cumbersome. Replacing the insulation material also necessitates reinstalling these fasteners. Therefore, this design does not meet current requirements, and a new steam transmission pipeline structure for power plants is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a steam transmission pipeline structure for power plants, so as to solve the problem of inconvenient maintenance and disassembly of existing steam pipeline insulation and protection structures mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steam transmission pipeline structure for a power plant, comprising: a steam pipeline body, a sleeve installed on the outside of the steam pipeline body, the sleeve being composed of a first arc-shaped fitting and a second arc-shaped fitting, an assembly frame integrally provided on the upper and lower surfaces of the outer walls of the first arc-shaped fitting and the second arc-shaped fitting, an arc-shaped groove provided inside the first arc-shaped fitting and the second arc-shaped fitting, the interior of the arc-shaped groove being filled with a plurality of horizontally spaced insulation cotton blocks, and a plurality of horizontally spaced openings provided at one end of the arc-shaped groove near the upper assembly frame.

[0007] Preferably, both the first arc-shaped fitting and the second arc-shaped fitting have an arc-shaped metal shell on their outer walls.

[0008] Preferably, an arc-shaped inner liner is provided on the outer wall of the arc-shaped groove.

[0009] Preferably, the interior of the arc-shaped groove is provided with several horizontally spaced arc-shaped reinforcing bars, and the insulation cotton blocks are filled between adjacent arc-shaped reinforcing bars.

[0010] Preferably, end plates are installed at both ends of the arc-shaped groove.

[0011] Preferably, an assembly groove is provided on the outer wall of the opening, and a magnetic strip is provided inside the assembly groove.

[0012] Preferably, the outer wall of the assembly frame is provided with a plurality of horizontally spaced screw holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model modularizes the insulation cotton block and fills it horizontally in the arc groove of the openable tube sleeve. The tube sleeve is fixed with bolts through the screw holes on the assembly frame. When it is necessary to inspect or replace the insulation cotton, simply loosen the bolts on the assembly frame to open the tube sleeve as a whole. Then, the insulation cotton block can be taken out or inserted horizontally like a drawer through the opening above the arc groove. This solution completely avoids disassembling the complex layered wrapping structure and fasteners such as rivets, threaded rings, positioning rods, etc., which greatly simplifies the inspection and replacement process of insulation materials and makes the operation more intuitive and faster.

[0015] (2) In this utility model, the strength of the outer sleeve is improved by several horizontally spaced arc-shaped partition frames. In addition, the arc-shaped partition frames can also divide the space in the arc groove into interval areas. The space in the interval area can be filled with insulation cotton blocks. After the insulation cotton blocks are filled, their two sides are restricted by the arc-shaped partition frames, which can restrict the assembly position. The end plate is used to seal both ends, so that the user can ensure that the internal insulation cotton blocks will not be damaged by the outdoor environment.

[0016] (3) In this utility model, when the first arc-shaped fitting is assembled with the second arc-shaped fitting, they can be combined by magnetic strips, which facilitates the user to perform subsequent bolt assembly operations. The magnetic strips are embedded in the assembly groove so that they do not protrude to the outside. In addition, the magnetic structure is located at the opening, which can further improve the tightness at that point. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the sleeve structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the inner liner structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the thermal insulation cotton block structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the arc-shaped groove of this utility model;

[0022] In the diagram: 1. Steam pipe body; 2. Pipe sleeve; 201. First arc-shaped assembly; 202. Second arc-shaped assembly; 203. Assembly frame; 204. Metal shell; 205. Arc-shaped groove; 206. Rib frame; 207. Opening; 208. Assembly groove; 209. Magnetic strip; 210. End plate; 211. Inner lining gasket; 212. Screw hole; 3. Insulation cotton block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-5This utility model provides an embodiment of a steam transmission pipeline structure for a power plant, comprising: a steam pipeline body 1, a pipe sleeve 2 installed on the outside of the steam pipeline body 1, the pipe sleeve 2 being composed of a first arc-shaped fitting 201 and a second arc-shaped fitting 202, an assembly frame 203 integrally provided on the upper and lower surfaces of the outer walls of the first arc-shaped fitting 201 and the second arc-shaped fitting 202, an arc-shaped groove 205 being provided inside the first arc-shaped fitting 201 and the second arc-shaped fitting 202, the inside of the arc-shaped groove 205 being filled with a plurality of horizontally spaced insulation cotton blocks 3, and a plurality of horizontally spaced openings 207 being provided at one end of the arc-shaped groove 205 near the upper assembly frame 203; in the above structure, the pipe sleeve 2 is added to the outside of the steam pipeline body 1, and the pipe sleeve 2 is composed of the first arc-shaped fitting 201 and the second arc-shaped fitting 202. The first arc-shaped assembly 201 and the second arc-shaped assembly 202 are assembled together via two sets of assembly frames 203. For subsequent disassembly, the two assemblies can be separated by removing the components from the assembly frames 203. The interior of each assembly has an arc-shaped groove 205 that conforms to the shape of the main body 1 of the steam pipe. Several insulation cotton blocks 3 are filled within the arc-shaped groove 205 to improve the insulation performance of the pipe sleeve 2. The insulation cotton blocks 3 are arranged horizontally at intervals within the arc-shaped groove 205. The opening 207 allows users to easily remove the corresponding insulation cotton blocks 3 after disassembling the assembly. Compared to a stacked set, this structure is more convenient for replacement and subsequent installation. Users only need to remove and insert the blocks through the opening 207, facilitating quick inspection and maintenance.

[0025] Furthermore, the outer wall of the assembly frame 203 is provided with several horizontally spaced screw holes 212; the screw holes 212 facilitate the user to install bolts for assembly operations.

[0026] Please see Figure 3 , Figure 5 Both the first arc-shaped fitting 201 and the second arc-shaped fitting 202 are provided with arc-shaped metal shells 204 on their outer walls, and arc-shaped inner liner 211 is provided on the outer wall of the arc-shaped groove 205. In the above structure, the metal shell 204 is used to improve the strength of the fitting itself and improve the protective performance. The arc-shaped inner liner 211 is used to contact the steam conveying pipeline, and its shape also fits the pipeline shape, making it easy to fit the pipeline.

[0027] Please see Figure 5The arc-shaped groove 205 is provided with several horizontally spaced arc-shaped baffles 206 inside. The insulation cotton blocks 3 are filled between adjacent arc-shaped baffles 206. End plates 210 are installed at both ends of the arc-shaped groove 205. In the above structure, the strength of the outer sleeve 2 is improved by several horizontally spaced arc-shaped baffles 206. In addition, the arc-shaped baffles 206 can also divide the space inside the arc-shaped groove 205 into interval areas. The interval areas can be filled with insulation cotton blocks 3. After the insulation cotton blocks 3 are filled, their two sides are restricted by the arc-shaped baffles 206, which can restrict the assembly position. The end plates 210 are used to seal both ends, ensuring that the internal insulation cotton blocks 3 will not be damaged by the outdoor environment.

[0028] Please see Figure 4 , Figure 5 An assembly groove 208 is provided on the outer wall of the opening 207, and a magnetic strip 209 is provided inside the assembly groove 208. In the above structure, when the first arc-shaped assembly 201 and the second arc-shaped assembly 202 are assembled, they can be attracted and combined by the magnetic strip 209, which facilitates the user to perform subsequent bolt assembly operations. The magnetic strip 209 is embedded in the assembly groove 208 so that it does not protrude to the outside. In addition, the magnetic structure is located at the opening 207, which can further improve the tightness at that point.

[0029] 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.

Claims

1. A steam transmission pipeline structure for a power plant, comprising a main steam pipeline body (1), characterized in that: The main body (1) of the steam pipe is equipped with a sleeve (2). The sleeve (2) is composed of a first arc-shaped fitting (201) and a second arc-shaped fitting (202). The upper and lower surfaces of the outer walls of the first arc-shaped fitting (201) and the second arc-shaped fitting (202) are integrally provided with an assembly frame (203). The interior of the first arc-shaped fitting (201) and the second arc-shaped fitting (202) is provided with an arc-shaped groove (205). The interior of the arc-shaped groove (205) is filled with a number of horizontally spaced insulation cotton blocks (3). The end of the arc-shaped groove (205) near the upper assembly frame (203) is provided with a number of horizontally spaced openings (207).

2. The steam transmission pipeline structure for a power plant according to claim 1, characterized in that: Both the first arc-shaped fitting (201) and the second arc-shaped fitting (202) have an arc-shaped metal shell (204) on their outer walls.

3. The steam transmission pipeline structure for a power plant according to claim 1, characterized in that: An arc-shaped inner liner (211) is provided on the outer wall of the arc-shaped groove (205).

4. The steam transmission pipeline structure for a power plant according to claim 1, characterized in that: The interior of the arc-shaped groove (205) is provided with several horizontally spaced arc-shaped rib frames (206), and the insulation cotton block (3) is filled between adjacent arc-shaped rib frames (206).

5. The steam transmission pipeline structure for a power plant according to claim 1, characterized in that: Both ends of the arc-shaped groove (205) are equipped with end plates (210).

6. The steam transmission pipeline structure for a power plant according to claim 1, characterized in that: An assembly groove (208) is provided on the outer wall of the opening (207), and a magnetic strip (209) is provided inside the assembly groove (208).

7. The steam transmission pipeline structure for a power plant according to claim 1, characterized in that: The outer wall of the assembly frame (203) is provided with a number of horizontally spaced screw holes (212).

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