Long sootblower seal
By employing a clamping spring design in the long sootblower to push the gripper to fit against the sootblowing gun tube, the problem of sealing device gaps is solved, achieving higher sealing performance and reducing maintenance requirements, thus ensuring boiler safety and production efficiency.
Patent Information
- Application Number
- CN202522013451.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-19
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-19
AI Technical Summary
The existing sealing device of the long soot blower is not effective, resulting in a gap between the soot blowing gun tube and the wall box through hole, causing ash and air leakage, which affects the safe and stable operation of the boiler and its heat transfer efficiency.
The clamping spring pushes the jaws to move, so that the jaws fit into the soot blowing gun barrel. The jaws always hold the gun barrel tightly when the soot blower is started to avoid gaps. The sealing effect is improved by the inner closed ring and sealing components.
It improves the sealing effect, reduces the frequency of manual maintenance and repair, and ensures the safe and stable operation of the boiler and its production efficiency.
Smart Images

Figure CN224680096U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sootblower sealing devices, and more specifically, to a long sootblower sealing device. Background Technology
[0002] Soot blowers are devices used to remove ash from the heating surfaces of boilers. They typically consist of soot blowing pipes and operating valves, and are generally installed on the furnace walls in the boiler furnace, horizontal flue, and tail flue. Based on their structure, there are several types, including gun-type, rotary type, and telescopic type. Based on the medium used, there are three categories: air soot blowers, steam soot blowers, and hydraulic soot blowers. Air soot blowers utilize the impact force of high-pressure compressed air to blow away ash from the heating surfaces; they are commonly used in industrial boilers. Steam soot blowers utilize the impact force of a high-speed jet of superheated steam to remove ash from the heating surfaces; they are mostly used in various power plant boilers. Hydraulic soot blowers, also known as "slag blowers," use high-pressure water as the medium, causing the ash and slag adhering to the heating surfaces to crack and be removed due to rapid cooling; they are only suitable for certain special applications. Ash accumulation on the heating surfaces affects heat transfer, increases flue gas temperature, reduces boiler efficiency, and in severe cases, can cause superheater tube rupture accidents.
[0003] During operation, the existing long sootblower has poor sealing performance, and there is always a certain gap between the sootblower tube and the through hole of the wall box, resulting in ash and air leakage. Over time, this will cause a large amount of ash to accumulate on the insulation and steel beam at the lower end of the external sootblower, causing environmental problems. Moreover, the air leakage will also cause some wear and tear on the fins and pipes of the furnace wall, affecting the safe and stable operation of the unit. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a sealing device for a long sootblower. By using a clamping spring to push the jaws to move, the jaws and the sootblower tube are brought into contact. When the long sootblower is started and the sootblower tube rotates, each jaw always holds the sootblower tube tightly, without any transition gap. Each jaw works freely and does not hinder the operation of other components. At the same time, it improves the sealing effect, reduces the frequency of manual maintenance, and is beneficial for production use.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution:
[0008] A sealing device for a long sootblower includes: a mounting base with two display covers detachably connected to its top surface; and a sealing assembly comprising: an inner sealing ring, an inner fixing ring, and multiple sealing components. The inner sealing ring is fixedly connected to the top surface of the mounting base, and its inner wall has multiple through-holes. The inner fixing ring is fixedly connected to the top surface of the mounting base, and the multiple sealing components are disposed on the top surface of the mounting base for sealing the long sootblower.
[0009] As a preferred embodiment of this utility model, each of the multiple sealing components includes: two guide plates, a clamping spring, and a clamping claw. The two guide plates are fixedly connected to the top surface of the mounting base. The clamping spring is fixedly connected to one side of the inner wall of the inner fixing ring. The clamping claw is fixedly connected to one end of the clamping spring, and the clamping claw and the corresponding through-hole are slidably engaged.
[0010] As a preferred embodiment of this utility model, the outer wall of the inner closed ring is provided with a plurality of assisting protrusions.
[0011] As a preferred embodiment of this utility model, the top surface of the mounting base is provided with a mating groove, which mates with two display covers.
[0012] As a preferred embodiment of this utility model, the outer wall of the inner fixing ring is provided with multiple inner mounting seats, and the outer walls of the two display covers are provided with multiple mounting bolt holes.
[0013] As a preferred embodiment of this utility model, the bottom surface of the mounting base has two fixing bolt holes, and both fixing bolt holes extend to the top surface of the corresponding display cover.
[0014] 3. Beneficial effects
[0015] Compared with the prior art, this utility model provides a sealing device for a long sootblower, which has the following characteristics:
[0016] Beneficial effects:
[0017] The sealing device of this long sootblower uses a clamping spring to push the jaws to move, so that the jaws and the sootblowing gun tube fit together. When the long sootblower is started and the sootblowing gun tube rotates, each jaw always holds the sootblowing gun tube tightly, without producing a transition gap. Each jaw works freely and does not hinder the operation of other components. At the same time, it improves the sealing effect, reduces the frequency of manual maintenance, and is conducive to production use. Attached Figure Description
[0018] Figure 1 This is a perspective view of the present utility model;
[0019] Figure 2This is a bottom-view perspective view of the present invention;
[0020] Figure 3 This is a partial perspective view of the present utility model.
[0021] Explanation of the labels in the diagram:
[0022] 1. Mounting base; 2. Display cover; 3. Mating groove; 4. Inner closed ring; 5. Assisting protrusion; 6. Guide plate; 7. Clamping spring; 8. Gripper; 9. Inner fixing ring; 10. Inner mounting base; 11. Fixing bolt hole; 12. Mounting bolt hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0024] Example:
[0025] Please see Figure 1-3 A sealing device for a long sootblower includes: a mounting base 1, with two display covers 2 detachably connected to the top surface of the mounting base 1; and a sealing assembly, which includes: an inner sealing ring 4, an inner fixing ring 9, and multiple sealing components. The inner sealing ring 4 is fixedly connected to the top surface of the mounting base 1, and the inner wall of the inner sealing ring 4 has multiple through-holes. The inner fixing ring 9 is fixedly connected to the top surface of the mounting base 1, and the multiple sealing components are all disposed on the top surface of the mounting base 1 for sealing the long sootblower.
[0026] In a specific embodiment of this utility model, the mounting base 1 is installed on the wall box, and the fixing bolt holes 11 on the mounting base 1 are aligned with the M12 fixing screws on the wall box. Then, the two display covers 2 are aligned and installed. Finally, M8 hex socket screws are used to fix the display covers 2 and the mounting base 1. In use, the clamping spring 7 pushes the clamping claws 8 to move so that they fit against the soot blowing gun tube. When the long soot blower is started, when the soot blowing gun tube rotates, each clamping claw 8 always holds the soot blowing gun tube tightly without producing a transition gap. Each claw works freely and does not hinder the operation of other components. At the same time, the sealing effect is improved, the frequency of manual maintenance is reduced, and it is beneficial for production and use.
[0027] Specifically, the multiple sealing components include: two guide plates 6, a clamping spring 7, and a clamping claw 8. The two guide plates 6 are fixedly connected to the top surface of the mounting base 1. The clamping spring 7 is fixedly connected to the inner wall of one side of the inner fixing ring 9. The clamping claw 8 is fixedly connected to one end of the clamping spring 7, and the clamping claw 8 and the corresponding through-hole are in sliding fit.
[0028] In this embodiment, the guide plate 6 restricts the gripper 8 so that its movement path can be controlled. The clamping spring 7 pushes the gripper 8 to move so that the gripper 8 can fit with the soot blowing gun barrel and retract when the soot blowing gun barrel moves.
[0029] Specifically, the outer wall of the inner closed ring 4 is provided with multiple assisting protrusions 5.
[0030] In this embodiment, the sealing effect of the inner closed ring 4 is improved by assisting the protrusion 5, while making the inner closed ring 4 more aesthetically pleasing.
[0031] Specifically, the top surface of the mounting base 1 is provided with a mating groove 3, which mates with two display covers 2.
[0032] In this embodiment, the installation and positioning effect is improved by cooperating with the groove 3 and the display cover 2.
[0033] Specifically, the outer wall of the inner fixing ring 9 is provided with multiple inner mounting seats 10, and the outer walls of the two display covers 2 are provided with multiple mounting bolt holes 12.
[0034] In this embodiment, the inner mounting base 10 and the mounting bolt hole 12 are used to fix the bolts, which can also limit the installation position of the inner closed ring 4 and improve the installation alignment effect.
[0035] Specifically, the bottom surface of the mounting base 1 has two fixing bolt holes 11, and both fixing bolt holes 11 extend to the top surface of the corresponding display cover 2.
[0036] In this embodiment, the fixing bolt hole 11 and the M12 fixing screw are used to achieve quick positioning and installation. The M12 fixing screw needs to be pre-fixed to the wall box before installation.
[0037] Working principle: The clamping spring 7 pushes the clamping jaw 8 to move, so that the clamping jaw 8 and the soot blowing gun tube are in contact. When the long soot blower is started and the soot blowing gun tube rotates, each clamping jaw 8 always holds the soot blowing gun tube tightly, without producing a transition gap. Each part works freely and does not hinder the operation of other parts. At the same time, it improves the sealing effect, reduces the frequency of manual maintenance, and is conducive to production use.
[0038] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A sealing device for a long sootblower, characterized in that, include: Mounting base (1), the top surface of which is detachably connected to two display covers (2); as well as The sealing assembly includes an inner sealing ring (4), an inner fixing ring (9), and multiple sealing components. The inner sealing ring (4) is fixedly connected to the top surface of the mounting base (1). The inner wall of the inner sealing ring (4) has multiple through holes. The inner fixing ring (9) is fixedly connected to the top surface of the mounting base (1). The multiple sealing components are all disposed on the top surface of the mounting base (1) for sealing the long soot blower.
2. The sealing device for a long sootblower according to claim 1, characterized in that: Each of the sealing components includes: two guide plates (6), a clamping spring (7), and a clamp (8). The two guide plates (6) are fixedly connected to the top surface of the mounting base (1). The clamping spring (7) is fixedly connected to the inner wall of one side of the inner fixing ring (9). The clamp (8) is fixedly connected to one end of the clamping spring (7), and the clamp (8) and the corresponding through-hole are in sliding fit.
3. The sealing device for a long sootblower according to claim 2, characterized in that: The outer wall of the inner closed ring (4) is provided with a plurality of assisting protrusions (5).
4. A sealing device for a long sootblower according to claim 3, characterized in that: The top surface of the mounting base (1) is provided with a mating groove (3), which is mated with two display covers (2).
5. A sealing device for a long sootblower according to claim 4, characterized in that: The outer wall of the inner fixed ring (9) is provided with multiple inner mounting seats (10), and the outer walls of the two display covers (2) are provided with multiple mounting bolt holes (12).
6. A sealing device for a long sootblower according to claim 5, characterized in that: The mounting base (1) has two fixing bolt holes (11) on its bottom surface, and both fixing bolt holes (11) extend to the top surface of the corresponding display cover (2).