Desuperheater structure shared with superheater header
Through the temperature reducer structure shared with the superheater container, the problems of multiple connecting pipes and space occupation caused by the independent setting of the superheater are solved, and boiler structure optimization and cost savings are achieved.
Patent Information
- Application Number
- CN202421716754.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The independent arrangement of superheaters and water spray temperature reducers in existing boilers leads to many connecting pipes, large space, large material usage and large resistance, which affects the boiler structural layout and cost.
A heat reducer structure shared with the superheater container is designed, and the first and second superheater containers are connected coaxially with the heat reducer through welding to form a parallel temperature reduction structure, reducing the number of connected pipes, and optimizing the boiler space layout.
Effectively reduce the number of connected pipes of the superheater, save boiler space and materials, reduce pipeline resistance, optimize boiler structure and save costs.
Smart Images
Figure CN223090648U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to boiler equipment, in particular to a desuperheater structure shared with a superheater header. Background Art
[0002] In a thermal power plant, the steam flowing through the superheater is high-temperature and high-pressure steam. To prevent the steam temperature in the superheater from exceeding the temperature value that the superheater itself can withstand, a spray desuperheater is usually arranged between two stages of superheaters to adjust the superheated steam temperature so that it operates within a certain range.
[0003] Commonly used spray desuperheaters and superheater headers are each independently arranged, and then the desuperheater is connected to the outlet header of the upper-stage superheater and the inlet header of the lower-stage superheater through multiple connecting pipes. Such a structure has many connecting pipes, occupies a large space in the boiler, makes the layout of other connecting pipes in the boiler more difficult, and also has a large amount of material used for the connecting pipes and greater pipe resistance. Summary of the Utility Model
[0004] To solve the above-mentioned problems in the prior art, the utility model provides a desuperheater structure shared with a superheater header.
[0005] A desuperheater structure shared with a superheater header includes a first superheater tube bank disposed on the right side of the boiler and a second superheater tube bank disposed on the left side of the boiler; the first superheater tube bank is connected to a first superheater header; the second superheater tube bank is connected to a second superheater header; the first superheater header is coaxially connected to a first desuperheater to form a first desuperheating structure; the second superheater header is coaxially connected to a second desuperheater to form a second desuperheating structure; the first desuperheating structure and the second desuperheating structure are arranged in parallel on the same horizontal plane.
[0006] Further, both the first desuperheater and the second desuperheater are spray desuperheaters.
[0007] Further, the first superheater header is communicated with the first desuperheater by welding, and the high-temperature and high-pressure steam flowing out of the first superheater header is desuperheated by the first desuperheater and then enters the next-stage superheater.
[0008] Further, the second superheater header is communicated with the second desuperheater by welding, and the high-temperature and high-pressure steam flowing out of the second superheater header is desuperheated by the second desuperheater and then enters the next-stage superheater.
[0009] Further, the first superheater tube bank is communicated with the first superheater header by welding, and the high-temperature and high-pressure steam coming from the upper-stage superheater enters the first superheater header through the first superheater tube bank.
[0010] Further, the second superheater tube bank is connected to the second superheater header through welding, and the high-temperature and high-pressure steam from the upper-stage superheater enters the second superheater header through the second superheater tube bank.
[0011] Further, the first desuperheating structure and the second desuperheating structure are arranged in parallel on the same horizontal plane.
[0012] Advantages of the present utility model: The desuperheater structure sharing a superheater header provided by the present utility model can greatly reduce the number of connecting pipes of the superheater compared with the conventional boiler desuperheater structure, optimize the boiler structure, save boiler space, and at the same time can also save costs and reduce the resistance of the pipes. Description of the Drawings
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is Figure 1 the A-A cross-sectional view in
[0015] Figure 3 is Figure 1 the B-B cross-sectional view in
[0016] Reference numerals: 1, first superheater header; 2, second superheater header; 3, first superheater tube bank; 4, first desuperheater; 5, second desuperheater; 6, second superheater tube bank. Detailed Embodiments
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0018] Embodiment 1: Referring to Figure 1 , Figure 2 and Figure 3 , a desuperheater structure sharing a superheater header includes a first superheater header 1, a second superheater header 2, a first superheater tube bank 3, a first desuperheater 4, a second desuperheater 5, and a second superheater tube bank 6; wherein, the first desuperheater 4 and the second desuperheater 5 are spray desuperheaters.
[0019] In this embodiment, the superheater tube bank is divided into two parts, the left side and the right side of the boiler. The first superheater tube bank 3 is distributed on the right side of the boiler; the second superheater tube bank 6 is distributed on the left side of the boiler.
[0020] As shown in Figure 2As shown in the figure, the first superheater tube bank 3 is connected to the first superheater header 1 by welding. The first superheater header 1 is connected to the first desuperheater 4 by welding. The high-temperature and high-pressure steam from the upper-stage superheater enters the first superheater header 1 through the first superheater tube bank 3, and then enters the first desuperheater 4 from right to left. After spray desuperheating, the high-temperature and high-pressure steam enters the lower-stage superheater through other connecting pipes.
[0021] As Figure 3 shown, the second superheater tube bank 6 is connected to the second superheater header 2 by welding. The second superheater header 2 is connected to the second desuperheater 5 by welding. The high-temperature and high-pressure steam from the upper-stage superheater enters the second superheater header 2 through the second superheater tube bank 6, and then enters the second desuperheater 5 from left to right. After spray desuperheating, the high-temperature and high-pressure steam enters the lower-stage superheater through other connecting pipes.
[0022] In this embodiment, the first superheater header 1 and the first desuperheater 4 are welded into a coaxial connecting pipe, and the second superheater header 2 and the second desuperheater 5 are welded into a coaxial connecting pipe. Their connecting pipes are arranged in parallel on the same horizontal plane. The first desuperheater 4 and the second desuperheater 5 are fixed by screws at positions close to the superheater header.
[0023] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top part", "bottom part", "inner", "outer", "inner side", "outer side", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. Among them, the "inner side" refers to the internal or enclosed area or space. The "periphery" refers to the area around a specific component or a specific area.
[0024] In the description of the embodiments of the present invention, the terms "first", "second", "third", "fourth" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.
[0025] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "assembly" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0026] In the description of the embodiments of the present utility model, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.
[0027] In the description of the embodiments of the present utility model, it should be understood that "-" and "~" represent the range between two values, and this range includes the endpoints. For example: "A - B" represents the range greater than or equal to A and less than or equal to B. "A ~ B" represents the range greater than or equal to A and less than or equal to B.
[0028] In the description of the embodiments of the present utility model, the term "and / or" herein is only a description of the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.
[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A desuperheater structure shared with a superheater header, characterized in that It includes a first superheater tube bank (3) placed on the right side of the boiler and a second superheater tube bank (6) placed on the left side of the boiler; the first superheater tube bank (3) is connected to a first superheater header (1); the second superheater tube bank (6) is connected to a second superheater header (2); the first superheater header (1) is coaxially connected to a first desuperheater (4) to form a first desuperheating structure; the second superheater header (2) is coaxially connected to a second desuperheater (5) to form a second desuperheating structure; the first desuperheating structure and the second desuperheating structure are parallel.
2. The desuperheater structure shared with the superheater header according to claim 1, characterized in that, Both the first desuperheater (4) and the second desuperheater (5) are spray desuperheaters.
3. The desuperheater structure shared with the superheater header according to claim 1, characterized in that The first superheater header (1) is connected to the first desuperheater (4) in a welded manner, and the high-temperature and high-pressure steam flowing out of the first superheater header (1) is desuperheated by the first desuperheater (4) and then enters the next-stage superheater.
4. A desuperheater structure shared with a superheater header, characterized in that, The second superheater header (2) is connected to the second desuperheater (5) in a welded manner, and the high-temperature and high-pressure steam flowing out of the second superheater header (2) is desuperheated by the second desuperheater (5) and then enters the next-stage superheater.
5. The desuperheater structure shared with the superheater header according to claim 1, characterized in that, The first superheater tube bank (3) is connected to the first superheater header (1) in a welded manner, and the high-temperature and high-pressure steam coming from the previous-stage superheater enters the first superheater header (1) through the first superheater tube bank (3).
6. The desuperheater structure shared with the superheater header according to claim 1, characterized in that The second superheater tube bank (6) is connected to the second superheater header (2) in a welded manner, and the high-temperature and high-pressure steam coming from the previous-stage superheater enters the second superheater header (2) through the second superheater tube bank (6).
7. A desuperheater structure shared with a superheater header, characterized in that, The first desuperheating structure and the second desuperheating structure are arranged in parallel on the same horizontal plane.