Angle tube boiler superheater fixing structure
By designing the fixing structure of the angle tube boiler superheater, the combination of limit blocks, limit ear plates and limit columns is used to solve the fatigue and wear problems caused by the swing of the boiler superheater, and the stable fixation and adaptation in a small space are achieved sexual limit.
Patent Information
- Application Number
- CN202420523764.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-18
AI Technical Summary
The swing of the boiler superheater causes alternating bending stress at the root of the suspended screen, causing fatigue damage and possible wear damage due to collisions.
A fixed structure of the angle tube boiler superheater is designed, including the superheater container, the side wall container and the column base plate. By welding the limit block, the limit ear plate and the limit column, the superheater is fixed and expanded. , achieve the goal of left and right, front and back limits.
This structure can be fixed in a small space, limiting the horizontal displacement of the container, adapting to the limits of multiple heating surfaces, avoiding the swing of the superheater, and reducing fatigue and wear of the suspended screen.
Smart Images
Figure CN222503822U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a fixing structure of a superheater of an angle tube boiler. Background Art
[0002] A boiler is an energy conversion device. The energy input to the boiler includes the chemical energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. A pulverized coal boiler is composed of a furnace, a screen superheater, a horizontal flue and a tail flue. The superheater is the main heat-absorbing component inside the boiler, and it is generally placed in the furnace area of the boiler. Unstable combustion and flame pulsation in the boiler furnace can cause the flue gas flow to fluctuate. This fluctuating flue gas flow flushes the tube screen and causes the tube screen output to swing. The swinging tube screen interferes with the flue gas flow and continuously absorbs energy from the flue gas flow. Therefore, it is difficult to stop the swing of the tube screen. In severe cases, the swing amplitude is very large. On the one hand, alternating bending stress is generated at the root of the suspended screen, causing fatigue damage. On the other hand, they may collide with each other during the swinging process, causing wear damage. Utility Model Content
[0003] The utility model aims to solve the above-mentioned problems and provides a fixing structure for a superheater of a corner tube boiler.
[0004] The above purpose is achieved through the following technical solutions:
[0005] A corner tube boiler superheater fixing structure, which comprises a superheater header, a side wall header and a column bottom plate, the bottom of the superheater header is welded with a superheater support, and there are two limit blocks, which are symmetrically welded on the column bottom plate;
[0006] A limiting ear plate is welded to the end of the superheater header, and a limiting column is welded on the side wall header. The limiting column passes through the through hole of the limiting ear plate and is slidably matched with the limiting ear plate.
[0007] The corner tube boiler superheater fixing structure, the through hole is a square hole. Beneficial Effects
[0008] 1. The utility model is not limited by space and can be realized in a very small space. The limit block can limit the horizontal displacement of the header, and the limit block is welded on the bottom plate of the foundation column. This superheater fixed structure can be adjusted according to the structural size of the heating surface to adapt to a variety of heating surface limits.
[0009] 2. The utility model uses the limit ear plate welded on the superheater header and the limit column welded on the side wall header, which can expand up and down. The front and back directions expand together with the side wall header to achieve the purpose of front and back limit. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Attached Figure 1 It is a structural schematic diagram of the utility model;
[0011] Attached Figure 2 It is a structural diagram of the left and right limit of the superheater;
[0012] Attached Figure 3 This is the main view of the front and rear limits of the superheater;
[0013] Attached Figure 4 It is a top view of the front and rear limits of the superheater;
[0014] Attached Figure 5 It is a structural schematic diagram of the superheater support;
[0015] Attached Figure 6 It is a structural schematic diagram of the limit block;
[0016] Attached Figure 7 It is a structural schematic diagram of the limiting ear plate;
[0017] In the figure: 1, side wall header; 2, superheater header; 3, superheater support; 4, limit block; 5, column base plate; 6, limit ear plate; 7, limit column; 31, base plate; 41, notch; 61, through hole. DETAILED DESCRIPTION
[0018] Reference Figure 1-Figure 7 A corner tube boiler superheater fixing structure comprises a superheater header 2, a side wall header 1 and a column bottom plate 5. A superheater support 3 is welded to the bottom of the superheater header. Two limit blocks 4 are symmetrically welded to the column bottom plate. The superheater support has a bottom plate 31. The limit blocks are respectively provided with notches. The bottom plate of the superheater support is limited by the notches to achieve the purpose of left and right limiting.
[0019] The end of the superheater header is welded with a limiting ear plate 6, and the side wall header is welded with a limiting column 7, which passes through the through hole 61 of the limiting ear plate and is slidably matched with the limiting ear plate. The limiting ear plate welded on the superheater header and the limiting column welded on the side wall header are composed of the limiting ear plate and the limiting column welded on the side wall header, which can expand up and down. The front and rear directions expand together with the side wall header to achieve the purpose of front and rear limiting.
[0020] The corner tube boiler superheater fixing structure, the through hole is a square hole.
Claims
1. A corner tube boiler superheater fixing structure, which comprises a superheater header, a side wall header and a column bottom plate, and is characterized by: The bottom of the superheater header is welded with a superheater support, and there are two limit blocks, which are symmetrically welded on the column bottom plate; A limiting ear plate is welded to the end of the superheater header, and a limiting column is welded on the side wall header. The limiting column passes through the through hole of the limiting ear plate and is slidably matched with the limiting ear plate.
2. The corner tube boiler superheater fixing structure according to claim 1 is characterized in that: The through hole is a square hole.