A sealing device for a sootblower
By designing protective and replacement devices, the problem of dust overflowing during sootblower cleaning was solved, and the sealing between the jet pipe and the furnace body and the convenient replacement of the protective plate were achieved, thus improving the cleanliness and efficiency of the equipment.
Patent Information
- Application Number
- CN202521787358.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2035-08-21
AI Technical Summary
When cleaning existing soot blowers, the gap between the jet pipe and the furnace body can easily cause dust to overflow, polluting the environment.
A sealing structure including a protective device and a replacement device was designed. The structure uses components such as a protective cover, a contact ring, a threaded rod, and a servo motor to achieve a seal between the jet pipe and the furnace body. The protective plate can be easily replaced through a highly elastic rubber moving ring and a spring structure.
It effectively reduces dust spillage, improves the cleanliness of the equipment environment, increases the efficiency of protective plate replacement, and reduces the risk of wear and tear during equipment use.
Smart Images
Figure CN224593302U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soot blower technology, and in particular to a sealing device for a soot blower. Background Technology
[0002] In industrial production, boilers and other equipment generate a large amount of ash and slag during operation due to fuel combustion. If this ash and slag continues to accumulate on the heating surfaces inside the equipment, it will greatly affect the heat transfer efficiency of the equipment, increase energy consumption, and in severe cases, even lead to equipment failure and shorten the service life of the equipment. As an important device for removing ash from the heating surfaces of equipment, the stability and reliability of its operation are crucial. Sootblowers are auxiliary devices widely used in thermal equipment such as boilers and industrial furnaces. They are mainly used to remove accumulated ash, slag, and other dirt from the heating surfaces. From the working principle, it uses steam, compressed air, or water as a medium, spraying the medium at high speed through a specific nozzle. Using impact and purging force, it blows off the ash and slag attached to the heating surfaces (such as superheaters, economizers, and water-cooled walls), thereby ensuring the cleanliness of the heating surfaces and maintaining good heat transfer efficiency of the equipment.
[0003] However, the existing equipment has the following shortcomings: When the jet pipe is inserted into the furnace body, the gap between the jet pipe and the furnace body is relatively large. During cleaning, dust can easily overflow through the gap, causing environmental pollution.
[0004] Therefore, we propose a sealing device for a soot blower to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies where dust easily overflows from the gap between the jet pipe and the furnace body during cleaning, polluting the environment. This invention provides a sealing device for a soot blower.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sealing device for a soot blower, comprising a mounting frame, a connecting frame, a power unit, an air jet pipe, a support column, and a protective device. The mounting frame is fixedly connected inside the connecting frame, the support column is fixedly connected inside the mounting frame, the power unit is mounted on the surface of the support column, the air jet pipe is slidably connected to the surface of the support column, the air jet pipe is fixedly connected to one end of the power unit, the air jet pipe is slidably connected inside the mounting frame, and a protective device is fixedly provided at one end of the mounting frame. The protective device includes a protective cover and a limiting rod. The limiting rod is fixedly connected to one end of the mounting frame, the protective cover is sleeved on the surface of the air jet pipe, two connecting blocks are fixedly connected to the outer surface of the protective cover, the limiting rod is slidably connected inside the connecting blocks, a threaded rod is threadedly connected inside the connecting blocks, one end of the threaded rod is rotatably connected inside the mounting frame, and the end of the threaded rod away from the mounting frame is rotatably connected to a mounting bracket, the mounting bracket being fixedly connected to the side of the mounting frame.
[0007] Furthermore, a fixing block is fixedly connected to the end of the threaded rod away from the mounting frame. By setting the fixing block, the threaded rod can be limited, reducing the possibility that the threaded rod may easily detach from the mounting frame during use, thus preventing the threaded rod from rotating smoothly.
[0008] Furthermore, a servo motor is fixedly connected to the end of the threaded rod away from the fixed block, and a support frame is fixedly connected to the surface of the servo motor.
[0009] Furthermore, the support frame is fixedly connected inside the mounting frame, and a contact ring is fixedly connected to the end of the protective cover away from the mounting frame. The contact ring is provided to facilitate sealing the protective cover to the furnace surface.
[0010] Furthermore, a replacement device is fixedly installed inside the protective cover. The replacement device includes a protective plate and a mounting block. The mounting block is fixedly connected to the outer surface of the protective cover. The protective plate is slidably connected inside the protective cover and slides against the surface of the jet pipe. A movable ring is fixedly connected inside the protective plate near the jet pipe. A sealing ring is fixedly connected to the end of the protective plate away from the mounting frame. A slot is opened on the outer surface of the protective plate. An insert plate is slidably connected inside the mounting block and engages with the inside of the slot. A connecting plate is fixedly connected to the upper end of the insert plate. A pull handle is fixedly connected to the upper end of the connecting plate. A sliding rod is fixedly connected to the upper end of the mounting block. The connecting plate slides on the surface of the sliding rod. By setting the movable ring, which is made of highly elastic rubber, a seal can be formed between the protective plate and the jet pipe.
[0011] Furthermore, a limit block is fixedly connected to the upper end of the slide rod, and a first spring is sleeved on the surface of the slide rod.
[0012] Furthermore, one end of the first spring is fixedly connected to the surface of the connecting plate, and the end of the first spring away from the connecting plate is fixedly connected to the surface of the limiting block. The first spring is provided to facilitate the application of a reset force to the connecting plate.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, by setting a protective device, the contact area between the jet pipe and the furnace body is effectively protected, which plays a role in sealing the moving area. This reduces the situation where, when the jet pipe is inserted into the furnace body during use, the gap between the jet pipe and the furnace body is relatively large, and dust can easily overflow through the gap during cleaning, polluting the environment. This protective device achieves a seal between the jet pipe and the furnace body, improving the cleanliness of the equipment.
[0015] 2. In this utility model, by setting a replacement device, the protective plate can be effectively replaced, which can quickly replace the protective plate. This reduces the damage to the moving ring at the sliding part of the protective plate and the jet pipe caused by long-term friction during long-term use of existing equipment. Since the equipment is generally one piece, it is difficult to quickly replace the moving ring, resulting in low replacement efficiency for users. This replacement device realizes convenient replacement of the protective plate and improves the replacement efficiency for users. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0017] Figure 1 This utility model provides a three-dimensional structural diagram of a sealing device for a soot blower;
[0018] Figure 2 A bottom view of the sealing device of a soot blower is provided for this utility model;
[0019] Figure 3 This utility model provides a partial structural schematic diagram of a sealing device for a soot blower;
[0020] Figure 4 This utility model proposes a sealing device for a soot blower. Figure 3 Enlarged structural diagram at point A in the middle;
[0021] Figure 5 This utility model proposes a sealing device for a soot blower. Figure 4 Enlarged structural diagram at point B.
[0022] Legend: 1. Mounting frame; 2. Connecting frame; 3. Power unit; 4. Jet pipe; 5. Support column; 6. Protective device; 61. Protective cover; 62. Contact ring; 63. Connecting block; 64. Threaded rod; 65. Mounting bracket; 66. Fixing block; 67. Servo motor; 68. Support frame; 69. Limiting rod; 7. Replacement device; 71. Protective plate; 72. Moving ring; 73. Sealing ring; 74. Mounting block; 75. Slot; 76. Insert plate; 77. Connecting plate; 78. Pull handle; 79. Slide rod; 710. Limiting block; 711. First spring. Detailed Implementation
[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0024] Please see Figures 1-5 This utility model provides a technical solution: a sealing device for a soot blower, including a mounting frame 1, a connecting frame 2, a power unit 3, an air jet pipe 4, a support column 5, and a protective device 6. The mounting frame 1 is fixedly connected inside the connecting frame 2, the support column 5 is fixedly connected inside the mounting frame 1, the power unit 3 is mounted on the surface of the support column 5, the air jet pipe 4 is slidably connected to the surface of the support column 5, the air jet pipe 4 is fixedly connected to one end of the power unit 3, and the air jet pipe 4 is slidably connected inside the mounting frame 1.
[0025] Mounting frame 1 is a metal frame with a sturdy structure, providing a stable mounting base for all components; connecting frame 2 is used to fix mounting frame 1, enhancing the overall structural stability; power unit 3 is a driving device that can drive the jet pipe 4 to move precisely; jet pipe 4 is a high-temperature resistant metal pipe that can spray high-pressure airflow to clean dust; support column 5 is a guide structure that ensures the smooth sliding of jet pipe 4.
[0026] The specific settings and functions of its protective device 6 and replacement device 7 will be explained in detail below.
[0027] In this implementation scheme: a protective device 6 is fixedly installed at one end of the mounting frame 1. The protective device 6 includes a protective cover 61 and a limiting rod 69. The limiting rod 69 is fixedly connected to one end of the mounting frame 1. The protective cover 61 is sleeved on the surface of the jet pipe 4. Two connecting blocks 63 are fixedly connected to the outer surface of the protective cover 61. The limiting rod 69 is slidably connected inside the connecting blocks 63. The protective cover 61 is a high-temperature resistant metal cover that can block the spread of dust. The limiting rod 69 is a metal guide rod that ensures that the protective cover 61 moves smoothly. A threaded rod 64 is threadedly connected inside the connecting blocks 63. One end of the threaded rod 64 is rotatably connected inside the mounting frame 1. The end of the threaded rod 64 away from the mounting frame 1 is rotatably connected to a mounting bracket 65. The mounting bracket 65 is fixedly connected to the side of the mounting frame 1.
[0028] Specifically, a fixing block 66 is fixedly connected to the end of the threaded rod 64 away from the mounting bracket 65.
[0029] In this embodiment, by setting the fixing block 66, the threaded rod 64 can be limited, which reduces the possibility that the threaded rod 64 may easily detach from the mounting bracket 65 during use, making it difficult for the threaded rod 64 to rotate smoothly.
[0030] Specifically, a servo motor 67 is fixedly connected to the end of the threaded rod 64 away from the fixed block 66, and a support frame 68 is fixedly connected to the surface of the servo motor 67.
[0031] Specifically, the support frame 68 is fixedly connected inside the mounting frame 1, and the end of the protective cover 61 away from the mounting frame 1 is fixedly connected to a contact ring 62. The contact ring 62 is made of high-temperature resistant elastic material with good sealing performance. The contact ring 62 is set to facilitate sealing the protective cover 61 with the furnace body surface. The contact ring 62 can tightly fit the furnace body surface through its own deformation, enhancing the sealing effect and facilitating sealing the protective cover 61 with the furnace body surface.
[0032] In this embodiment: a replacement device 7 is fixedly installed inside the protective cover 61. The replacement device 7 includes a protective plate 71 and a mounting block 74. The mounting block 74 is fixedly connected to the outer surface of the protective cover 61. The protective plate 71 is slidably connected inside the protective cover 61 and slides against the surface of the jet pipe 4. A moving ring 72 is fixedly connected inside the protective plate 71 near the jet pipe 4. A sealing ring 73 is fixedly connected to the end of the protective plate 71 away from the mounting frame 1. A slot 75 is opened on the outer surface of the protective plate 71. An insert plate 76 is slidably connected inside the mounting block 74 and engages with the inside of the slot 75. A connecting plate 77 is fixedly connected to the upper end of the insert plate 76. A pull handle 78 is fixedly connected to the upper end of the connecting plate 77. A sliding rod 79 is fixedly connected to the upper end of the mounting block 74, and the connecting plate 77 is slidably connected to the surface of the sliding rod 79.
[0033] In this embodiment: by setting a movable ring 72, which is made of highly elastic rubber, the protective plate 71 and the jet pipe 4 can be sealed, thereby enhancing the sealing performance.
[0034] Specifically, a limit block 710 is fixedly connected to the upper end of the slide rod 79, and a first spring 711 is sleeved on the surface of the slide rod 79.
[0035] Specifically, one end of the first spring 711 is fixedly connected to the surface of the connecting plate 77, and the other end of the first spring 711 away from the connecting plate 77 is fixedly connected to the surface of the limiting block 710. The first spring 711 is provided to facilitate the application of a reset force to the connecting plate 77.
[0036] Working Principle: When using the equipment, the user installs it on the outside of the furnace body and then starts the power unit 3, which moves on the surface of the mounting frame 1 and support column 5. The power unit 3 then moves the jet pipe 4 into the furnace body, filling it with air to clean the dust inside. Before moving the jet pipe 4, the user installs the protective plate 71 and protective cover 61. The user then starts the servo motor 67, which rotates the threaded rod 64. The rotation of the threaded rod 64 causes the connecting block 63 to move horizontally, and the movement of the connecting block 63... The protective cover 61 blocks the contact area between the jet pipe 4 and the furnace body, and the contact ring 62 is fitted to the surface of the furnace body to seal the jet pipe 4. By setting the protective device 6, the contact area between the jet pipe 4 and the furnace body is effectively protected, which plays a role in sealing the moving area. This reduces the problem that when the jet pipe 4 is inserted into the furnace body, the gap between the jet pipe 4 and the furnace body is relatively large, and dust can easily overflow through the gap during cleaning, polluting the environment. This protective device 6 achieves the sealing of the jet pipe 4 and the furnace body, improving the cleanliness of the equipment.
[0037] When replacing the protective plate 71, the user pulls the handle 78 to move the connecting plate 77 to the insert plate 76. The connecting plate 77 moves on the surface of the slide rod 79, compressing the first spring 711 and generating elastic force. Then, the insert plate 76 disengages from the slot 75, and the protective plate 71 is released from its restraint. The movable protective plate 71 is then removed from the interior of the protective cover 61 for replacement. By setting the replacement device 7, the protective plate 71 can be replaced effectively, achieving the function of quick replacement of the protective plate 71. This reduces the damage to the moving ring 72 at the sliding point between the protective plate 71 and the jet pipe 4 caused by long-term friction during long-term use of existing equipment. Since general equipment is integrated, it is difficult to quickly replace the moving ring 72, resulting in low replacement efficiency for users. This replacement device 7 realizes convenient replacement of the protective plate 71 and improves the user's replacement efficiency.
[0038] The above description discloses only one or more preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of the present utility model still fall within the scope of the present utility model.
Claims
1. A sealing device for a soot blower, comprising a mounting frame (1), a connecting bracket (2), a power unit (3), an air jet pipe (4), a support column (5), and a protective device (6), characterized in that: The mounting frame (1) is fixedly connected inside the connecting frame (2), the support column (5) is fixedly connected inside the mounting frame (1), the power unit (3) is mounted on the surface of the support column (5), the jet pipe (4) is slidably connected on the surface of the support column (5), the jet pipe (4) is fixedly connected to one end of the power unit (3), and the jet pipe (4) is slidably connected inside the mounting frame (1); A protective device (6) is fixedly installed at one end of the mounting frame (1). The protective device (6) includes a protective cover (61) and a limiting rod (69). The limiting rod (69) is fixedly connected to one end of the mounting frame (1). The protective cover (61) is sleeved and connected to the surface of the jet pipe (4). Two connecting blocks (63) are fixedly connected to the outer surface of the protective cover (61). The limiting rod (69) is slidably connected inside the connecting block (63). A threaded rod (64) is threadedly connected inside the connecting block (63). One end of the threaded rod (64) is rotatably connected inside the mounting frame (1). The end of the threaded rod (64) away from the mounting frame (1) is rotatably connected to a mounting bracket (65). The mounting bracket (65) is fixedly connected to the side of the mounting frame (1).
2. The sealing device for a soot blower according to claim 1, characterized in that: A fixing block (66) is fixedly connected to the end of the threaded rod (64) away from the mounting bracket (65).
3. The sealing device for a soot blower according to claim 2, characterized in that: A servo motor (67) is fixedly connected to one end of the threaded rod (64) away from the fixed block (66), and a support frame (68) is fixedly connected to the surface of the servo motor (67).
4. The sealing device for a soot blower according to claim 3, characterized in that: The support frame (68) is fixedly connected inside the mounting frame (1), and a contact ring (62) is fixedly connected to the end of the protective cover (61) away from the mounting frame (1).
5. The sealing device for a soot blower according to claim 1, characterized in that: A replacement device (7) is fixedly installed inside the protective cover (61). The replacement device (7) includes a protective plate (71) and a mounting block (74). The mounting block (74) is fixedly connected to the outer surface of the protective cover (61). The protective plate (71) is slidably connected inside the protective cover (61). The protective plate (71) slides against the surface of the jet pipe (4). A movable ring (72) is fixedly connected inside the protective plate (71) near the jet pipe (4). The end of the protective plate (71) away from the mounting frame (1) A sealing ring (73) is fixedly connected. A slot (75) is provided on the outer surface of the protective plate (71). An insert plate (76) is slidably connected inside the mounting block (74). The insert plate (76) is engaged with the inside of the slot (75). A connecting plate (77) is fixedly connected to the upper end of the insert plate (76). A pull handle (78) is fixedly connected to the upper end of the connecting plate (77). A slide rod (79) is fixedly connected to the upper end of the mounting block (74). The connecting plate (77) is slidably connected to the surface of the slide rod (79).
6. The sealing device for a soot blower according to claim 5, characterized in that: The upper end of the slide rod (79) is fixedly connected to a limit block (710), and a first spring (711) is sleeved on the surface of the slide rod (79).
7. A sealing device for a soot blower according to claim 6, characterized in that: One end of the first spring (711) is fixedly connected to the surface of the connecting plate (77), and the other end of the first spring (711) away from the connecting plate (77) is fixedly connected to the surface of the limiting block (710).