Target region structure of separator of circulating fluidized bed boiler
By adopting high wear-resistant materials and buffer structures in the separator target area of the circulating fluidized bed boiler separator target area, the wear resistance and safety of the equipment are solved.
Patent Information
- Application Number
- CN202422359519.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-26
AI Technical Summary
When using strongly wearable fuel in existing circulating fluidized bed boilers, the separator target area is severely worn, which may lead to equipment failures such as separator tube explosion, affecting the safe and stable operation of the boiler.
A target area structure of a circulating fluidized bed boiler separator is designed, and a deflector plate and a deflector made of high wear-resistant plastic materials are combined with arc-shaped elastic plates to form an interlaced arrangement to divert the flue gas and buffer high-speed particles, reducing the flue gas erosion force.
It improves the wear resistance of the target area, reduces the probability of equipment failure, extends the service life of the equipment and reduces the cost of replacing components.
Smart Images
Figure CN223121409U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of target area structures, in particular to a target area structure of a separator of a circulating fluidized bed boiler. Background Technique
[0002] The separator device is one of the key components of a circulating fluidized bed boiler. Its main function is to separate a large amount of high-temperature solid materials from the flue gas and send them back to the combustion chamber to maintain a high concentration of solid particles in the combustion chamber and ensure multiple circulations and repeated combustions of fuel and desulfurizer.
[0003] In order to increase the residence time of unburned carbon in the furnace, enable more fine particles to be separated and participate in circulating combustion, effectively reduce the combustible matter in fly ash, and at the same time improve and optimize the fluidization and combustion conditions in the furnace to improve the combustion efficiency in the furnace, currently, high-efficiency separators are adopted in circulating fluidized bed boilers, and increasing the flue gas flow rate at the inlet of the separator is the simplest and most direct way to improve the separator efficiency.
[0004] Increasing the flue gas flow rate at the inlet of the separator may have certain advantages in improving the separation efficiency or throughput, but when the boiler uses strongly abrasive fuels, this operation mode will significantly exacerbate the wear problem of the target area of the separator, and may further cause more serious equipment failures, such as separator tube explosion, etc., which poses a direct threat to the safe and stable operation of the boiler. Therefore, those skilled in the art have provided a target area structure of a separator of a circulating fluidized bed boiler to solve the problems raised in the above background technique. Content of the Utility Model
[0005] (1) Technical Problems to be Solved
[0006] Aiming at the deficiencies of the prior art, the utility model provides a target area structure of a separator of a circulating fluidized bed boiler to solve the problem that when the boiler uses strongly abrasive fuels, this operation mode will significantly exacerbate the wear problem of the target area of the separator, and may further cause more serious equipment failures, such as separator tube explosion, etc., which poses a direct threat to the safe and stable operation of the boiler.
[0007] (2) Technical Solutions
[0008] To achieve the above object, the utility model provides the following technical solution: A target area structure of a separator of a circulating fluidized bed boiler, including a cylinder body, one side of the cylinder body is communicated with a flue, a central cylinder is inserted into the upper end of the cylinder body, a cone is connected to the bottom of the cylinder body, a cover plate is installed on the cylinder body, a plug plate is installed on the inner wall of the cylinder body, a support plate is installed at the bottom of the plug plate, a guide plate is arranged on the front side of the plug plate, a support block is installed on the front side of the guide plate, a guide vane is installed on the front side of the support block, and an arc-shaped elastic plate is installed at one end of the guide vane away from the support block.
[0009] Preferably, a slot is provided at the rear side of the deflector, and the deflector is slidably inserted into the plug board through the slot, and the support plate is in contact with the bottom side of the deflector.
[0010] Preferably, a buckle lock is installed on the cover plate, and the cover plate is fixedly connected to the cylinder body through the buckle lock. By opening and closing the buckle lock, the cover plate can be opened to replace the deflector.
[0011] Preferably, the deflector and the deflector vanes are made of a highly wear-resistant plastic material. Therefore, the deflector and the deflector vanes have high wear resistance, and the arc-shaped elastic plate has elasticity and a certain buffering effect.
[0012] (III) Beneficial effects
[0013] Compared with the prior art, the present utility model provides a target area structure of a circulating fluidized bed boiler separator, which has the following beneficial effects:
[0014] Through design, the deflector vanes are arranged in a staggered manner. When the high-speed flue gas flow scours the target area, the flue gas is shunted by the deflector vanes, and the arc-shaped elastic plate provided can effectively rebound the high-speed particles in the flue gas to form a certain buffering effect. Cooperating with the deflector as the bottom plate, the wear resistance of the target area can be effectively improved. This structure improves the wear resistance of the target area by shunting to reduce the direct scouring force of the flue gas, and reduces the problem that more serious equipment failures may be caused by the wear of the target area, such as the problem of the separator bursting. Brief description of the drawings
[0015] Figure 1 FIG. is a three-dimensional structure schematic diagram of a target area structure of a circulating fluidized bed boiler separator provided by an embodiment of the present application.
[0016] Figure 2 FIG. is a structure schematic diagram of a cover plate in a target area structure of a circulating fluidized bed boiler separator provided by an embodiment of the present application.
[0017] Figure 3 FIG. is a structure schematic diagram of a deflector in a target area structure of a circulating fluidized bed boiler separator provided by an embodiment of the present application.
[0018] Figure 4 FIG. is a structure schematic diagram of a deflector vane in a target area structure of a circulating fluidized bed boiler separator provided by an embodiment of the present application.
[0019] In the figure: 1, flue; 2, cylinder body; 3, central cylinder; 4, cone; 5, cover plate; 6, buckle lock; 7, plug board; 8, support plate; 9, deflector; 10, slot; 11, deflector vane; 12, support block; 13, arc-shaped elastic plate. Detailed implementation manners
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0021] The present utility model provides a technical solution, a target area structure of a circulating fluidized bed boiler separator. Please refer to Figures 1 to 4 , which includes a cylinder body 2. One side of the cylinder body 2 is communicated with a flue 1. A central cylinder 3 is inserted into the upper end of the cylinder body 2. A cone 4 is connected to the bottom of the cylinder body 2. A cover plate 5 is installed on the cylinder body 2. An insertion plate 7 is installed on the inner wall of the cylinder body 2. A support plate 8 is installed at the bottom of the insertion plate 7. A guide plate 9 is arranged on the front side of the insertion plate 7. A slot 10 is opened on the rear side of the guide plate 9. The guide plate 9 is slidably inserted into the insertion plate 7 through the slot 10. The support plate 8 is in contact with the bottom side of the guide plate 9. A support block 12 is installed on the front side of the guide plate 9. A guide vane 11 is installed on the front side of the support block 12. An arc-shaped elastic plate 13 is installed at one end of the guide vane 11 away from the support block 12. The guide plate 9 and the guide vane 11 are made of a highly wear-resistant plastic material. Therefore, the guide plate 9 and the guide vane 11 have high wear resistance, and the arc-shaped elastic plate 13 has elasticity and has a certain buffering effect.
[0022] Please refer to Figure 2 , a buckle lock 6 is installed on the cover plate 5. The cover plate 5 is fixedly connected to the cylinder body 2 through the buckle lock 6. By opening and closing the buckle lock 6, the cover plate 5 can be opened, so as to replace the guide plate 9.
[0023] The separator in the present utility model includes a flue 1, a cylinder body 2, a central cylinder 3 and a cone 4. A through groove is opened in the upper part of the cylinder body 2. A cover plate 5 is fixedly installed on the through groove through a buckle lock 6;
[0024] An insertion plate 7 is installed on the inner wall of the target area of the cylinder body 2. A support plate 8 is arranged at the bottom of the insertion plate 7. A guide plate 9 is inserted into the insertion plate 7 from top to bottom. The support plate 8 supports and limits the guide plate 9. The guide plate 9 is made of a highly wear-resistant plastic material. A guide vane 11 is installed on the inner side of the guide plate 9 through a support block 12. The tail end of the guide vane 11 is connected with an arc-shaped elastic plate 13. The guide vane 11 is also made of a highly wear-resistant plastic material, and the arc-shaped elastic plate 13 has elasticity;
[0025] Due to the staggered arrangement of the flow guide vanes 11, when the high-speed flue gas flow scours the target area, the flow guide vanes 11 divide the flue gas, and the provided arc-shaped elastic plate 13 can effectively rebound the high-speed particles in the flue gas to form a certain buffering effect. Cooperating with the flow guide plate 9 as the bottom plate, it can effectively improve the wear resistance of the target area. This structure improves the wear resistance of the target area by reducing the direct scouring force of the flue gas through flow division, reducing the possibility that more serious equipment failures caused by target area wear, such as the problem of separator pipe explosion;
[0026] And the flow guide plate 9 can be replaced after removing the cover plate 5, reducing the use cost of the equipment.
[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0028] In this article, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, 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.
[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 principle 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 target area structure of a cyclone separator for a circulating fluidized bed boiler, comprising a cylinder body (2), characterized in that: One side of the cylinder body (2) is communicated with a flue (1). A central cylinder (3) is inserted into the upper end of the cylinder body (2). A cone (4) is connected to the bottom of the cylinder body (2). A cover plate (5) is installed on the cylinder body (2). A plug plate (7) is installed on the inner wall of the cylinder body (2). A support plate (8) is installed at the bottom of the plug plate (7). A guide plate (9) is arranged on the front side of the plug plate (7). A support block (12) is installed on the front side of the guide plate (9). A guide vane (11) is installed on the front side of the support block (12). One end of the guide vane (11) away from the support block (12) is installed with an arc-shaped elastic plate (13).
2. The target area structure of a circulating fluidized bed boiler separator according to claim 1, characterized in that: A slot (10) is formed on the rear side of the guide plate (9). The guide plate (9) is slidably inserted into the plug plate (7) through the slot (10).
3. A target area structure of a circulating fluidized bed boiler separator according to claim 1, characterized in that: The support plate (8) is in contact with the bottom side of the guide plate (9).
4. A target area structure of a circulating fluidized bed boiler separator according to claim 1, characterized in that: A buckle lock (6) is installed on the cover plate (5). The cover plate (5) is fixedly connected to the cylinder body (2) through the buckle lock (6).
5. A target area structure of a circulating fluidized bed boiler separator according to claim 1, characterized in that: The guide plate (9) and the guide vane (11) are made of a highly wear-resistant plastic material.