Sealing baffle for boiler soot blower

Abstract

The utility model discloses a sealing baffle plate for a boiler soot blower, two sides of a first clamping plate are respectively provided with a slide rail, two sides of a second clamping plate are respectively provided with a slide groove, the first clamping plate and the second clamping plate are respectively provided with a lock hole, the first clamping plate and the second clamping plate are sequentially and alternately arranged and assembled together to form a baffle ring, and the baffle ring is provided with a lock hole. The first clamping plate and the second clamping plate which are adjacent to each other are connected in a sliding mode through a sliding rail and a sliding groove, the clamping ring is formed by splicing two semicircular clamping petals, an annular clamping plate groove is formed in the inner side of the clamping ring, the baffle ring is movably arranged in the annular clamping plate groove of the clamping ring, a step hole corresponding to the lock hole is formed in the clamping ring, and the baffle ring is movably arranged in the step hole. The soot blowing pipe clamping and sealing device has the advantages that the soot blowing pipe can be clamped, fixed and sealed, and the sealing performance between the soot blowing pipe and a boiler opening is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of soot blowers, specifically to a sealing baffle for a boiler soot blower. Background Technology

[0002] A boiler soot blower is a device used to remove ash buildup on the heating surfaces of a boiler. It typically consists of a soot blowing pipe and operating valves, and is generally installed on the furnace walls in the furnace, horizontal flue, and tail flue. Ash buildup on heating surfaces affects heat transfer, increases exhaust gas temperature, reduces boiler efficiency, and in severe cases, can cause superheater tube rupture. Therefore, regularly using soot blowers to remove ash buildup on various heating surfaces plays a crucial role in ensuring the safe and economical operation of the boiler.

[0003] When boiler furnace cleaning is required, the inner boiler inlet liner is usually opened, and the sootblower's blowing pipe is extended into the boiler through the inlet. Because the blowing pipe doesn't perfectly fit the boiler inlet, heat loss and dust overflow can occur during the sootblower's reciprocating blowing motion. To address this, a sealing ring, similar in diameter to the blowing pipe, is typically installed on the outside of the boiler to prevent heat loss and dust overflow. However, commonly used sealing rings are usually made of curved springs, fixedly installed on the outside of the boiler inlet. When these springs expand and contract, gaps exist between them, resulting in poor sealing performance. Furthermore, after repeated expansion and contraction, the springs gradually lose elasticity and require timely replacement. To address this issue, we propose a sealing baffle for boiler sootblowers. Utility Model Content

[0004] The purpose of this invention is to provide a sealing baffle for a boiler sootblower to overcome the aforementioned shortcomings. While improving the sealing between the sootblower pipe and the boiler inlet, the component has a simple structure, good durability, and effectively prevents heat loss and dust overflow from inside the boiler.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A sealing baffle for a boiler sootblower includes a first clamping plate, a second clamping plate, a retaining ring, locking bolts, and a spring. The first clamping plate has slide rails on both sides, and the second clamping plate has slide grooves on both sides. Both the first and second clamping plates have locking holes. The first and second clamping plates are arranged alternately and assembled together to form a retaining ring. Adjacent first and second clamping plates are slidably connected via slide rails and slide grooves. The retaining ring is composed of two semi-circular clamping segments. An annular clamping groove is formed on the inner side of the retaining ring, and the retaining ring is movably placed within the annular clamping groove of the retaining ring. A stepped hole corresponding to the locking hole is formed on the retaining ring. Multiple locking bolts pass through the stepped hole of the retaining ring and are threadedly connected to the locking hole. The spring is sleeved on the locking bolt and is located between the stepped hole and the locking hole. Fixing ears are provided at the joint of the two semi-circular clamping segments, and fixing holes are formed on the fixing ears. The two semi-circular clamping segments of the retaining ring are fixedly connected together via the fixing holes.

[0007] Preferably, the retaining ring has a pair of mounting holes.

[0008] Preferably, the mounting hole is located at the junction of the two semi-circular clips of the retaining ring.

[0009] Preferably, both the first and second card plates are trapezoidal, and both the inner and outer surfaces of the first and second card plates are arc-shaped.

[0010] The beneficial effects that this utility model can achieve by adopting the above-mentioned technical solution are:

[0011] By setting up components such as retaining rings and elastic first and second retaining plates, the soot blowing pipe is clamped, fixed, and sealed, effectively improving the sealing performance between the soot blowing pipe and the boiler inlet.

[0012] By designing simple components, not only are the parts more durable, but subsequent maintenance, repair, and replacement of parts are also simple. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the card flap of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the first card plate of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the second card plate of this utility model;

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the locking bolt mounting location of this utility model.

[0018] 1. First clamping plate; 2. Second clamping plate; 3. Clamping ring; 4. Locking bolt; 5. Spring; 6. Slide rail; 7. Slide groove; 8. Locking hole; 9. Clamping flap; 10. Annular clamping plate groove; 11. Fixing ear; 12. Step hole; 13. Mounting hole; 14. Fixing hole. Detailed Implementation

[0019] Depend on Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a sealing baffle for a boiler sootblower includes a first clamping plate 1, a second clamping plate 2, a retaining ring 3, a locking bolt 4, and a spring 5. The first clamping plate 1 has slide rails 6 on both sides, and the second clamping plate 2 has slide grooves 7 on both sides. Both the first clamping plate 1 and the second clamping plate 2 have locking holes 8. The first clamping plate 1 and the second clamping plate 2 are arranged alternately and assembled together to form a retaining ring. Adjacent first clamping plates 1 and second clamping plates 2 are slidably connected by slide rails 6 and slide grooves 7. Both the first clamping plate 1 and the second clamping plate 2 are trapezoidal, and their inner and outer surfaces are arc-shaped. The retaining ring 3 is composed of two semi-circular retaining segments 9. A locking hole 8 is opened on the inner side of the retaining ring 3. The retaining ring 3 is provided with an annular retaining plate groove 10 and a pair of mounting holes 13. The mounting holes 13 are located at the joint of the two semi-circular retaining segments 9 of the retaining ring 3. The retaining ring is movably placed in the annular retaining plate groove 10 of the retaining ring 3. The retaining ring 3 is provided with a stepped hole 12 corresponding to the locking hole 8. Multiple locking bolts 4 pass through the stepped hole 12 of the retaining ring 3 and are threaded to the locking hole 8. The spring 5 is sleeved on the locking bolt 4 and is located between the stepped hole 12 and the locking hole 8. The joint of the two semi-circular retaining segments 9 is provided with fixing ears 11, and fixing holes 14 are provided on the fixing ears 11. The two semi-circular retaining segments 9 of the retaining ring 3 are fixedly connected together through the fixing holes 14.

[0020] In use, the sealing baffle is fixedly installed on the outer wall of the boiler inlet through the paired mounting holes 13 on the retaining ring 3. The soot blowing pipe of the boiler soot blower is inserted into the sealing baffle. Since the first retaining plate 1 and the second retaining plate 2 are connected to the retaining ring 3 by locking bolts 4, and springs 5 ​​are installed between the first retaining plate 1 and the second retaining plate 2 and the inner wall of the retaining ring 3, the first retaining plate 1 and the second retaining plate 2 will be tightly attached to the outer wall of the soot blowing pipe under the elastic force of the springs 5, which can effectively achieve a good sealing effect between the soot blowing pipe and the boiler inlet.

Claims

1. A sealing baffle for a boiler soot blower, characterized in that: The system includes a first locking plate (1), a second locking plate (2), a retaining ring (3), a locking bolt (4), and a spring (5). The first locking plate (1) has slide rails (6) on both sides, and the second locking plate (2) has slide grooves (7) on both sides. Locking holes (8) are provided on both the first locking plate (1) and the second locking plate (2). The first locking plate (1) and the second locking plate (2) are arranged alternately and assembled together to form a retaining ring. Adjacent first locking plates (1) and second locking plates (2) are slidably connected by slide rails (6) and slide grooves (7). The retaining ring (3) is assembled from two semi-circular retaining segments (9). An annular retaining plate groove (10) is provided on the inner side of the retaining ring (3). The retaining ring is movably placed in the annular retaining plate groove (10) of the retaining ring (3). A stepped hole (12) corresponding to the locking hole (8) is provided on the retaining ring (3). Multiple locking bolts (4) pass through the stepped hole (12) of the retaining ring (3) and are threaded to the locking hole (8). The spring (5) is sleeved on the locking bolt (4). The spring (5) is located between the stepped hole (12) and the locking hole (8). Fixing ears (11) are provided at the splice of the two semi-circular retaining pieces (9). Fixing holes (14) are provided on the fixing ears (11). The two semi-circular retaining pieces (9) of the retaining ring (3) are fixedly connected together through the fixing holes (14).

2. A sealing baffle for a boiler soot blower according to claim 1, characterized in that: The retaining ring (3) has a pair of mounting holes (13).

3. A sealing baffle for a boiler soot blower according to claim 2, characterized in that: The mounting hole (13) is located at the joint of the two semi-circular clips (9) of the retaining ring (3).

4. A sealing baffle for a boiler soot blower according to claim 1, 2 or 3, characterized in that: Both the first card plate (1) and the second card plate (2) are trapezoidal, and the inner and outer surfaces of the first card plate (1) and the second card plate (2) are arc-shaped.

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