Efficient and energy-saving partition screen tube bundle structure for boiler
By designing header and partition screen tube bank modules, the problems of low energy efficiency and low heat transfer performance of traditional partition screen tube banks are solved, realizing high-efficiency energy saving and stable operation of boilers, and simplifying the manufacturing and installation process.
Patent Information
- Application Number
- CN202423109761.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Traditional partitioned tube banks have low energy efficiency and heat transfer performance, and their complex structure leads to uneven heating and insufficient adaptability to thermal expansion, affecting the stability of boiler operation and energy utilization.
The design adopts a header and partitioned tube array module, including inlet and outlet membrane tube arrays, which are connected by U-shaped elbows. The tube array is welded to the sealing plate to form a continuous heating surface. The design also uses a bare tube and fin structure to optimize the pipe layout and fluid flow.
It improves heat transfer uniformity and stability, reduces thermal resistance, extends service life, simplifies the manufacturing and installation process, and improves assembly efficiency and heat transfer performance.
Smart Images
Figure CN223691043U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a boiler technical field especially relates to a kind of efficient energy-saving partition screen tube row structure for boiler. BACKGROUND
[0002] As an important equipment of industrial production and civilian energy supply, the energy conversion efficiency of boiler is directly related to the utilization rate of energy and operating cost. In the structure of boiler, the partition screen tube row not only bears the isolation and flow guiding effect, but also plays a key role in the heat transfer and energy-saving performance of boiler. The conventional partition screen tube row mostly adopts the bulk form of tube bundle structure. Although this structure can meet the basic use demand, its energy-saving efficiency and heat transfer performance have obvious limitations.
[0003] Firstly, the heat transfer performance of bulk tube bundle structure is poor, which easily causes uneven heating and affects the overall thermal efficiency of boiler. Secondly, the structure is insufficient in thermal expansion adaptability, and problems such as change of tube bundle gap or stress concentration of components may occur during operation, which leads to energy waste and reduction of operating stability. In addition, the production and installation process of bulk tube bundle is complex, and the energy consumption is high during production and construction, which does not meet the requirements of modern energy saving and environmental protection. SUMMARY
[0004] The purpose of the present application is to provide an efficient energy-saving partition screen tube row structure for boiler to solve the problems of low energy-saving efficiency and heat transfer performance of the existing boiler partition screen tube row.
[0005] To achieve this purpose, the following technical solutions are adopted:
[0006] The present application provides an efficient energy-saving partition screen tube row structure for boiler, which comprises a header and a plurality of groups of partition screen tube row modules, wherein:
[0007] The header is located at the upper end of the plurality of groups of partition screen tube row modules. Each group of partition screen tube row modules comprises an inlet section membrane tube screen and an outlet section membrane tube screen. One end of the inlet section membrane tube screen and one end of the outlet section membrane tube screen are fixedly connected by a U-shaped elbow. The other end of the outlet section membrane tube screen and the other end of the inlet section membrane tube screen are respectively communicated with the header.
[0008] The inlet section membrane tube screen and the outlet section membrane tube screen each comprise a plurality of screen tubes and a sealing plate. The plurality of screen tubes are connected along a first direction by the sealing plate.
[0009] The plurality of groups of partition screen tube row modules are arranged side by side along the first direction. The adjacent partition screen tube row modules are welded and connected by the sealing plate to form a continuous heating surface.
[0010] Optionally, the plurality of screen tubes are arranged in parallel and at intervals along the first direction, and the intervals between adjacent screen tubes are the same.
[0011] Optionally, the U-shaped elbow of the superheated pipe adopts a light pipe.
[0012] Optionally, the high-efficiency energy-saving partition screen pipe row structure for the boiler further comprises a plurality of groups of first fixing members, the plurality of groups of first fixing members are fixed and installed horizontally and at intervals along the vertical direction on the plurality of groups of partition screen pipe row modules, the first fixing members are configured to fixedly connect the partition screen pipe row modules and the inner wall of the boiler or other structural members, so that the partition screen pipe row modules are kept stable in the boiler.
[0013] Optionally, the screen pipe and the sealing plate are connected through welding.
[0014] Optionally, the outer surface of the screen pipe is provided in the shape of fins.
[0015] Optionally, a fluid guide assembly is arranged inside the screen pipe, and the fluid guide assembly is configured to optimize the flow path of the working medium in the pipe.
[0016] Compared with the prior art, the high-efficiency energy-saving partition screen pipe row structure for the boiler has the following advantages:
[0017] 1) By cooperation of the header, the screen pipe and the sealing plate, the screen pipe forms a continuous heating surface, which not only ensures the uniformity of heating of the partition screen pipe row, but also has a simple structure, is convenient to manufacture and install, and improves the assembly efficiency.
[0018] 2) By using the U-shaped elbow in the form of a light pipe, the thermal resistance of the superheated pipe section is reduced, the heat transfer efficiency is improved, the service life of the superheated section is prolonged, and the damage risk caused by stress concentration is reduced.
[0019] 3) By the design that the screen pipes are arranged in parallel and at intervals along the first direction, the structural layout of the pipe row is optimized, the uneven heating between the screen pipes is avoided, the heat transfer performance is improved, the overall stability of the partition screen pipe row is ensured, and the stress caused by thermal expansion is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate and understand the technical solutions in the embodiments of the present application, the drawings needed to be used in the background and embodiment descriptions of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.
[0021] Figure 1 is a cross-sectional view of the high-efficiency energy-saving partition screen pipe row structure for the boiler provided by the embodiments of the present application;
[0022] Figure 2 is an enlarged schematic view of position A in Figure 1 DETAILED DESCRIPTION
[0023] For the purposes of this application, a more complete understanding of the application can be obtained by reference to the following description in connection with the accompanying drawings. The preferred embodiments of the application are illustrated in the drawings. However, the application can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. It should be noted that when a part is referred to as being "fixed" to another part, it can be directly on the other part or intervening parts can also be present. When a part is referred to as being "connected" to another part, it can be directly connected to the other part or intervening parts can also be present. The terms "vertical", "horizontal", "left", "right", and similar expressions as used herein are for illustrative purposes only and are not intended to be limiting. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0024] Referring to Figure 1 and Figure 2 , the embodiment of the application provides a high-efficiency energy-saving partition screen tube bank structure for a boiler, which comprises a header 10 and a plurality of sets of partition screen tube bank modules 20, wherein:
[0025] The header 10 is located at the upper end of the plurality of sets of partition screen tube bank modules 20, each set of partition screen tube bank modules 20 comprises an inlet section membrane tube screen 24 and an outlet section membrane tube screen 25, one end of the inlet section membrane tube screen 24 and one end of the outlet section membrane tube screen 25 are fixedly connected through a U-shaped elbow 21, and the other end of the outlet section membrane tube screen 25 and the other end of the inlet section membrane tube screen 24 are respectively in communication with the header 10.
[0026] The inlet section membrane tube screen 24 and the outlet section membrane tube screen 25 each comprise a plurality of screen tubes 22 and sealing plates 23, the plurality of screen tubes 22 are connected along a first direction (X direction) through the sealing plates 23; Figure 1
[0027] The plurality of sets of partition screen tube bank modules 20 are arranged side by side along the first direction, and the adjacent partition screen tube bank modules 20 are welded and connected through the sealing plates to form a continuous heating surface.
[0028] Through the cooperation of the header 10, the screen tubes 22 and the sealing plates 23, the screen tubes 22 form a continuous heating surface, which not only ensures the uniformity of the heating of the partition screen tube bank, but also has a simple structure, is convenient to manufacture and install, and improves the assembly efficiency.
[0029] In an embodiment, the plurality of screen tubes 22 are arranged in parallel and spaced apart along the first direction, and the adjacent screen tubes 22 are spaced apart by the same distance.
[0030] By arranging the plurality of screen tubes 22 in parallel and spaced apart along the first direction, the structural layout of the tube bank is optimized, the uneven heating between the screen tubes is avoided, the heat transfer performance is improved, and the overall stability of the screen tube bank is ensured, and the stress caused by thermal expansion is reduced.
[0031] In an embodiment, the superheated tube of the U-shaped elbow 21 adopts a light tube.
[0032] By adopting the U-shaped elbow 21 in the form of a light tube, not only the thermal resistance of the superheated tube section is reduced, the heat transfer efficiency is improved, but also the service life of the superheated section is prolonged, and the damage risk caused by stress concentration is reduced.
[0033] In an embodiment, the high-efficiency energy-saving screen tube bank structure for the boiler further comprises a plurality of groups of first fixing members 30, and the plurality of groups of first fixing members 30 are fixed and installed on the plurality of groups of screen tube bank modules 20 in a horizontal and spaced apart manner along the vertical direction. The first fixing member 30 is configured to fixedly connect the screen tube bank module 20 and the inner wall of the boiler or other structural members, so as to keep stable in the boiler.
[0034] By arranging the first fixing member 30, the screen tube bank module 20 is fixed to the inner wall of the boiler or other structural members, so as to ensure the stability of the module position, prevent vibration or displacement during operation, and ensure the stability and safety of the system operation.
[0035] In an embodiment, the screen tube 22 and the sealing plate 23 are connected by welding.
[0036] By welding the screen tube 22 and the sealing plate 23, the sealing and firmness between the components are ensured, and the overall structural integrity is enhanced, and the durability of the heating surface is improved.
[0037] In an embodiment, the outer surface of the screen tube 22 is provided in the form of a fin.
[0038] By adopting the fin structure on the outer surface of the screen tube 22, the heating area is increased, and the heat transfer efficiency of the boiler is improved.
[0039] In an embodiment, a fluid guide assembly is arranged inside the screen tube 22, and the fluid guide assembly is configured to optimize the flow path of the working medium in the pipe.
[0040] By arranging the fluid guide assembly inside the screen tube 22, the flow resistance is reduced, the uniformity and stability of the fluid flow are improved, and the heat transfer efficiency in the pipe is improved.
[0041] The above examples are merely set forth to illustrate the basic principles and applications of the present application. It should be understood that the present application is not limited to these examples and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present application. The scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A high efficiency energy saving partitioned panel tube bank arrangement for a boiler, characterized in that, The high-efficiency energy-saving partitioned screen tube bank structure for a boiler comprises a header and a plurality of sets of partitioned screen tube bank modules, wherein: The header is located at the upper end of the plurality of sets of partitioned screen tube bank modules, each set of the partitioned screen tube bank modules comprises an inlet section membrane tube screen and an outlet section membrane tube screen, one end of the inlet section membrane tube screen and one end of the outlet section membrane tube screen are fixedly connected through a U-shaped elbow, and the other end of the outlet section membrane tube screen and the other end of the inlet section membrane tube screen are respectively in communication with the header; The inlet section membrane tube screen and the outlet section membrane tube screen each comprise a plurality of screen tubes and a sealing plate, and the plurality of screen tubes are connected in a first direction through the sealing plate; The plurality of sets of partitioned screen tube bank modules are arranged side by side in the first direction, and the adjacent partitioned screen tube bank modules are welded and connected through the sealing plate to form a continuous heating surface.
2. The high efficiency, energy saving, divided screen tube bank arrangement of claim 1 wherein, The plurality of screen tubes are arranged in parallel and at intervals in the first direction, and the adjacent screen tubes are at the same interval.
3. The high efficiency, energy saving, divided panel tube bank arrangement of claim 1 wherein, The superheated tube of the U-shaped elbow is a light tube.
4. The high efficiency, energy saving, divided panel tube bank arrangement of claim 1 wherein, The high-efficiency energy-saving partitioned screen tube bank structure for a boiler further comprises a plurality of sets of first fixing members, the plurality of sets of first fixing members are fixedly installed on the plurality of sets of partitioned screen tube bank modules in a vertical direction and at intervals in a horizontal direction, and the first fixing members are configured to fixedly connect the partitioned screen tube bank modules with the inner wall of the boiler or other structural members so as to keep stable in the boiler.
5. The high efficiency, energy saving, divided panel tube bank arrangement of claim 1 wherein, The screen tube and the sealing plate are connected through welding.
6. The high efficiency, energy saving, divided panel tube bank arrangement of claim 1 wherein, The outer surface of the screen tube is provided in a fin shape.
7. The high efficiency, energy saving, divided panel tube bank arrangement according to claim 1 wherein, The screen tube is internally provided with a fluid guide assembly configured to optimize the flow path of the working medium in the pipe.