Abrasion-proof structure for water cooling wall of boiler
Through the buffer structure composed of the annular shell, elastic connectors and partitions, the wear problem of boiler water-cooled wall pipes is solved, and the protection of water-cooled walls is achieved, which reduces wear risks and safety hazards.
Patent Information
- Application Number
- CN202422023817.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The boiler water-cooled wall pipe is easily worn by coal ash particles, resulting in irregular wear and pipe burst risks, posing safety hazards.
The annular shell is connected to the elastic connector, combined with the partition net and the annular nozzle driven by the power assembly, forming a buffering and protection structure to prevent coal ash particles from directly impacting the pipeline.
Significantly reduce the wear of coal ash particles on the annular shell and pipes, prevent splashing, reduce damage, and improve boiler safety.
Smart Images
Figure CN223090698U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of boiler anti-wear, in particular to an anti-wear structure for a boiler water wall. Background Art
[0002] As an energy conversion device, boilers are now more and more widely used in the market and can be used in industries such as electric power, machinery, metallurgy, chemical industry, textile, and paper making. The function of the water wall is to absorb the radiant heat of the high-temperature flame or flue gas in the furnace, generate steam or hot water in the pipe, and reduce the furnace wall temperature to protect the furnace wall.
[0003] Because coal ash particles descend along the water wall tubes, it is easy to wear the tube wall area of the water wall, and the wear position is irregular. Therefore, during the operation of the boiler, it may also cause major safety hazards such as tube explosion and furnace shutdown of the water wall tubes. Summary of the Utility Model
[0004] The purpose of the utility model is to propose an anti-wear structure for a boiler water wall aiming at the problems existing in the background art.
[0005] The technical solution of the utility model, an anti-wear structure for a boiler water wall, includes:
[0006] An annular shell; the annular shell is arranged at the upper inner side of the furnace body;
[0007] A plurality of elastic connectors, the annular shell is elastically connected to the inner wall of the furnace body through the plurality of elastic connectors;
[0008] A partition net, the partition net is installed at the bottom end of the annular shell, and the partition net surrounds the annular shell for one week.
[0009] Preferably, a plurality of hooks are connected to the bottom end of the annular shell, a plurality of fixing rings are connected to the side of the partition net, the plurality of fixing rings are arranged in one-to-one correspondence with the plurality of hooks, and the plurality of hooks are respectively hung on the plurality of fixing rings, and there is a gap between the partition net and the annular shell.
[0010] Preferably, a plurality of buffer components are installed on the partition net, and each buffer component includes a cylinder body, a movable rod, a spring a and a movable block. The cylinder body is fixed on the partition net, the end of the movable rod is movably arranged inside the cylinder body and is connected to the movable block, and the spring a is arranged inside the cylinder body.
[0011] Preferably, the elastic connector includes a guide rod, a spring b, a connecting plate and a limiting block. The connecting plate is fixed on the inner wall of the furnace body, the guide rod is connected to the annular shell, the guide rod movably penetrates through the connecting plate and its bottom end is connected to the limiting block, and the spring b is sleeved on the guide rod.
[0012] Preferably, the annular shell is in a funnel-shaped structure, and the opening of the annular shell gradually decreases from top to bottom.
[0013] Preferably, an annular spray head is arranged on the outer periphery of the partition net. A plurality of fine holes are installed on both the inner and outer sides of the annular spray head. A heat-resistant hose is communicatively connected to the annular spray head. The heat-resistant hose movably penetrates through the furnace body, and a power assembly for driving the annular spray head to lift is installed on the furnace body.
[0014] Preferably, the power assembly includes a servo motor, a winding disc, a steel wire rope, a fixed pulley a, and a fixed pulley b. The servo motor is installed on the outer side wall of the furnace body. The winding disc is installed on the output shaft of the servo motor. One end of the steel wire rope is fixed on the winding disc, and the other end movably penetrates through the side wall of the furnace body and is connected to the annular spray head. The fixed pulley b and the fixed pulley a are respectively installed on the inner and outer sides of the furnace body, and the steel wire rope is wound around the fixed pulley a and the fixed pulley b.
[0015] Compared with the prior art, the utility model has the following beneficial technical effects: when the coal ash particles fall onto the annular shell, the elastic connecting piece provided enables the annular shell to have a certain buffering effect, which can significantly reduce the damage caused by the particle impact to the annular shell. The partition net provided can protect the pipelines on the inner wall of the furnace body and prevent the coal ash particles from splashing onto the pipelines; in summary, the utility model can protect the pipelines on the inner wall of the furnace body and at the same time reduce the damage caused by the coal ash particles to the annular shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the utility model.
[0017] Figure 2 is a schematic structural diagram of the buffer assembly in the utility model.
[0018] Figure 3 is Figure 1 a partially enlarged structural diagram at A of
[0019] Figure 4 is Figure 1 a partially enlarged structural diagram at B of
[0020] Reference numerals: 1, furnace body; 2, annular shell; 3, partition net; 4, annular spray head; 5, servo motor; 6, winding disc; 7, steel wire rope; 8, cylinder body; 9, movable rod; 10, spring a; 11, movable block; 121, fixed pulley a; 122, fixed pulley b; 13, guide rod; 14, spring b; 15, connecting plate; 16, limiting block; 17, hook; 18, fixing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Embodiment 1
[0022] As Figure 1 , Figure 3 and Figure 4As shown in the figure, an anti-abrasion structure for the boiler water-cooled wall proposed in this embodiment includes an annular shell 2, a partition net 3, and multiple groups of elastic connectors.
[0023] The annular shell 2 is arranged at the upper inner side of the furnace main body 1. The annular shell 2 is of a funnel-shaped structure, and the opening of the annular shell 2 gradually decreases from top to bottom; the annular shell 2 is elastically connected to the inner wall of the furnace main body 1 through multiple groups of elastic connectors. The elastic connectors include a guide rod 13, a spring b 14, a connecting plate 15, and a limit block 16. The connecting plate 15 is fixed on the inner wall of the furnace main body 1. The guide rod 13 is connected to the annular shell 2. The guide rod 13 movably penetrates through the connecting plate 15 and its bottom end is connected to the limit block 16. The spring b 14 is sleeved on the guide rod 13; the partition net 3 is installed at the bottom end of the annular shell 2, and the partition net 3 surrounds the annular shell 2 for one week.
[0024] An annular spray head 4 is arranged on the outer periphery of the partition net 3. A plurality of fine holes are installed on both the inner and outer sides of the annular spray head 4. A heat-resistant hose is communicated with the annular spray head 4. The heat-resistant hose movably penetrates through the furnace main body 1. A power assembly for driving the annular spray head 4 to lift and lower is installed on the furnace main body 1; the power assembly includes a servo motor 5, a winding disc 6, a steel wire rope 7, a fixed pulley a 121, and a fixed pulley b 122. The servo motor 5 is installed on the outer side wall of the furnace main body 1. The winding disc 6 is installed on the output shaft of the servo motor 5. One end of the steel wire rope 7 is fixed on the winding disc 6, and the other end movably penetrates through the side wall of the furnace main body 1 and is connected to the annular spray head 4. The fixed pulley b 122 and the fixed pulley a 121 are respectively installed on the inner and outer sides of the furnace main body 1. The steel wire rope 7 is wound around the fixed pulley a 121 and the fixed pulley b 122. One end of the heat-resistant hose is connected to the output end of the air pump. At the same time, the power assembly is set to drive the annular spray head 4 to move up and down reciprocally. The air flow blown out by the annular spray head 4 can clean the dust attached to the partition net 3 and the pipeline.
[0025] Coal ash particles fall onto the annular shell 2 from top to bottom. Through the arranged elastic connectors, the structure that the annular shell 2 is elastically connected to the furnace main body 1 is such that the annular shell 2 has a certain buffering effect. Compared with the fixed installation structure, it can significantly reduce the damage caused by particle impact to the annular shell 2. Through the arranged partition net 3, the pipeline on the inner wall of the furnace main body 1 can be protected to prevent coal ash particles from splashing onto the pipeline; in summary, the utility model can protect the pipeline on the inner wall of the furnace main body 1 and at the same time can reduce the damage caused by coal ash particles to the annular shell 2.
[0026] Embodiment Two
[0027] As Figure 2 and Figure 4As shown in the figure, a wear prevention structure for the boiler water wall proposed in this embodiment, compared with the first embodiment, in this embodiment, a plurality of hooks 17 are connected to the bottom end of the annular shell 2, and a plurality of fixing rings 18 are connected to the side of the partition net 3. The plurality of fixing rings 18 are arranged in one-to-one correspondence with the plurality of hooks 17, and the plurality of hooks 17 are respectively hung on the plurality of fixing rings 18. There is a gap between the partition net 3 and the annular shell 2. The setting of the above structure enables the partition net 3 to swing freely.
[0028] A plurality of buffer components are installed on the partition net 3. The buffer components include a cylinder body 8, a movable rod 9, a spring a 10 and a movable block 11. The cylinder body 8 is fixed on the partition net 3. The end of the movable rod 9 is movably arranged inside the cylinder body 8 and is connected to the movable block 11. The spring a 10 is arranged inside the cylinder body 8, so that the partition net 3 has a certain buffering effect. Compared with the structure of fixed connection, the setting of the above structure can reduce the destructive force generated by large-particle coal ash on the partition net 3.
[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to this. Within the scope of knowledge possessed by those skilled in the art to which the present invention pertains, various changes can be made without departing from the purpose of the present invention.
Claims
1. A wear-resistant structure for the water-cooled wall of a boiler, characterized in that Comprising: A ring-shaped housing (2); the ring-shaped housing (2) is provided at the upper inner side of the furnace body (1); A plurality of elastic connecting members, the ring-shaped housing (2) is elastically connected to the inner wall of the furnace body (1) through the plurality of elastic connecting members; A partition net (3), the partition net (3) is installed at the bottom end of the ring-shaped housing (2), and the partition net (3) is arranged around the ring-shaped housing (2) for one week.
2. The anti-abrasion structure of a boiler water wall according to claim 1, characterized in that A plurality of hooks (17) are connected to the bottom end of the ring-shaped housing (2), a plurality of fixing rings (18) are connected to the side part of the partition net (3), the plurality of fixing rings (18) are arranged in one-to-one correspondence with the plurality of hooks (17), and the plurality of hooks (17) are respectively hung on the plurality of fixing rings (18), and there is a gap between the partition net (3) and the ring-shaped housing (2).
3. A boiler water wall anti-wear structure according to claim 2, characterized in that A plurality of buffer components are installed on the partition net (3), and each buffer component includes a cylinder body (8), a movable rod (9), a spring a (10) and a movable block (11). The cylinder body (8) is fixed on the partition net (3), the end of the movable rod (9) is movably arranged inside the cylinder body (8) and is connected to the movable block (11), and the spring a (10) is arranged inside the cylinder body (8).
4. A boiler water wall anti-wear structure according to claim 1, characterized in that The elastic connecting member includes a guide rod (13), a spring b (14), a connecting plate (15) and a limiting block (16). The connecting plate (15) is fixed on the inner wall of the furnace body (1), the guide rod (13) is connected to the ring-shaped housing (2), the guide rod (13) movably penetrates through the connecting plate (15) and its bottom end is connected to the limiting block (16), and the spring b (14) is sleeved on the guide rod (13).
5. A boiler water wall anti-wear structure according to claim 1, characterized in that, The ring-shaped housing (2) is of a funnel-shaped structure, and the opening of the ring-shaped housing (2) gradually decreases from top to bottom.
6. The anti-wear structure of a boiler water wall according to claim 1, characterized in that A ring-shaped spray head (4) is arranged on the outer periphery of the partition net (3). A plurality of fine holes are installed on both the inner and outer sides of the ring-shaped spray head (4). A heat-resistant hose is communicated with the ring-shaped spray head (4). The heat-resistant hose movably penetrates through the furnace body (1), and a power component for driving the ring-shaped spray head (4) to lift is installed on the furnace body (1).
7. The anti-abrasion structure of a boiler water wall according to claim 6, characterized in that, The power component includes a servo motor (5), a winding disc (6), a steel wire rope (7), a fixed pulley a (121) and a fixed pulley b (122). The servo motor (5) is installed on the outer side wall of the furnace body (1), the winding disc (6) is installed on the output shaft of the servo motor (5), one end of the steel wire rope (7) is fixed on the winding disc (6), the other end movably penetrates through the side wall of the furnace body (1) and is connected to the ring-shaped spray head (4), the fixed pulley b (122) and the fixed pulley a (121) are respectively installed on the inner and outer sides of the furnace body (1), and the steel wire rope (7) is wound around the fixed pulley a (121) and the fixed pulley b (122).