Long telescopic steam soot blower filler mounting tool

Abstract

The utility model discloses a long telescopic steam soot blower filler mounting tool, which belongs to the technical field of boiler machinery, and comprises a guide rod, the guide sleeve is provided with a first inner hole, the first inner hole is in clearance fit with the outer wall of the filler, the guide sleeve is further provided with a guide hole, the axis of the guide hole is parallel to the axis of the first inner hole, and the guide hole is in clearance fit with the guide rod; the inner pipe is sleeved with the press-in inner sleeve, the press-in inner sleeve is located between the inner pipe flange and the running car, the press-in inner sleeve is provided with a second inner hole, the second inner hole is in clearance fit with the outer wall of the inner pipe, and the outer wall of the press-in inner sleeve is in clearance fit with the first inner hole; the press-in inner sleeve is used for abutting against the inner pipe flange when the sports car drives the outer pipe to move so that the press-in inner sleeve can push the filler to enter the filler box between the inner pipe and the outer pipe, the filler installation tool can install the filler set into the filler box at a time, the whole filling operation is simple and rapid, and the filler, the inner gun barrel and related spare parts cannot be damaged.

Description

Technical Field

[0001] This utility model relates to the field of boiler machinery technology, specifically to a long telescopic steam soot blower packing installation tool. Background Technology

[0002] The long telescopic steam soot blower for natural circulation boilers is a device that uses steam to blow soot from the top-mounted screen superheater to prevent coking and ash buildup. During long-term operation, wear and steam leakage can easily occur in the packing between the inner and outer tubes, leading to reduced effectiveness. This necessitates replacing the packing, which is a shaped graphite ring packing, specifically a shaped graphite packing.

[0003] Existing technology requires disassembling the inner tube flange and removing the inner tube nut, flange, key, and packing gland when replacing the packing in a long telescopic steam sootblower. Then, during the filling process, a layer of packing is installed, and the packing gland is used to press in another layer, repeating this process until installation is complete. However, this method is problematic in practice because the installation space is limited and the packing is made of brittle material that cannot withstand excessive force. The installation process easily damages the packing, leading to leakage failure. Furthermore, repeated filling processes can easily damage spare parts used for packing installation, such as the packing gland bolts. The entire filling process is also cumbersome. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems in the prior art and provide a long telescopic steam soot blower packing installation tool that can install the packing group into the stuffing box in one go. The entire filling operation is simple and quick, and will not damage the packing, inner gun barrel and related spare parts.

[0005] This utility model provides a long telescopic steam sootblower packing installation tool for installing packing into a stuffing box between an inner pipe and an outer pipe. The inner pipe has an inner pipe flange, and the outer pipe has a trolley. The tool includes:

[0006] The guide rod is vertically positioned on the side of the sports car closest to the inner tube flange;

[0007] The guide sleeve has a first inner hole, which is clearance-fitted with the outer wall of the packing. The guide sleeve is also provided with a guide hole, the axis of which is parallel to the axis of the first inner hole, and the guide hole is clearance-fitted with the guide rod.

[0008] A press-in inner sleeve is located between the inner tube flange and the carriage. The press-in inner sleeve has a second inner hole, which is clearance-fitted with the outer wall of the inner tube. The outer wall of the press-in inner sleeve is clearance-fitted with the first inner hole. The press-in inner sleeve is used to abut against the inner tube flange when the carriage drives the outer tube to move, so that the press-in inner sleeve pushes the packing into the stuffing box between the inner tube and the outer tube.

[0009] In at least one embodiment of the present invention, the guide sleeve has at least two guide holes, each of which is evenly distributed around the first inner hole and its position corresponds to the position of the packing bolt.

[0010] In at least one embodiment of the present invention, the outer wall of the filler is coated with molybdenum disulfide powder.

[0011] In at least one embodiment of this utility model, the material of the pressed inner sleeve is nylon or polytetrafluoroethylene.

[0012] In at least one embodiment of the present invention, the guide sleeve is formed by two or more first arc-shaped walls, each of which is provided with a guide hole; the press-in inner sleeve is formed by two or more second arc-shaped walls; a shoulder is fitted on the outer wall of the press-in inner sleeve; the shoulder is formed by two third arc-shaped walls; and the two third arc-shaped walls are connected by bolts.

[0013] In at least one embodiment of this utility model, each of the first arc-shaped walls is provided with a guide hole.

[0014] In at least one embodiment of the present invention, each of the ends of the adjacent first arc-shaped walls that come into contact with each other is provided with a first groove and a first protrusion that fit together.

[0015] In at least one embodiment of the present invention, each of the ends of the adjacent second arc-shaped walls that come into contact with each other is provided with a second groove and a second protrusion that fit into each other.

[0016] In at least one embodiment of this utility model, one end of the guide rod is threaded, and the thread of the threaded end of the guide rod is consistent with the thread of the filler bolt. The guide rod is threadedly connected to the sports car.

[0017] In at least one embodiment of the present invention, the shoulder is provided at one end of the outer wall of the press-in inner sleeve, and the end of the press-in inner sleeve away from the shoulder is made of nylon.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. This utility model, by setting a guide rod, a guide sleeve, and a press-in inner sleeve, provides a long telescopic steam soot blower packing installation tool. In use, the guide rod is first installed on the trolley, then the guide sleeve is installed on the guide rod through the guide hole. The first inner hole of the guide sleeve is fitted outside the inner tube. The entire packing material is then placed inside the guide sleeve, and the press-in inner sleeve is installed inside the guide sleeve. After installation, simply cranking the trolley's manual handle moves the outer gun barrel to press the packing into the stuffing box. This installation tool allows for the packing assembly to be installed into the stuffing box in one go. The entire filling operation is simple and quick, and will not damage the packing, inner gun barrel, or related spare parts.

[0020] 2. By setting the guide sleeve and the press-in inner sleeve to a structure surrounded by an arc-shaped wall, this utility model can remove the guide sleeve and the press-in inner sleeve without removing the valve mounting plate, inner tube nut and inner tube flange on the inner tube during the installation of the packing, which further reduces the amount of work involved in the packing process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall sectional structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the guide sleeve structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the press-fit inner sleeve structure for this practical application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Valve mounting plate; 2. Inner tube nut; 3. Inner tube flange; 4. Bolt; 5. Carriage; 6. Inner tube; 7. Packing; 8. Press-in inner sleeve; 81. Second inner hole; 82. Shoulder; 83. Second groove; 84. Second protrusion; 9. Guide sleeve; 91. First inner hole; 92. Guide hole; 93. First groove; 94. First protrusion; 10. Guide rod. Detailed Implementation

[0026] The accompanying drawings in this invention are not strictly drawn to scale; the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this invention are merely structural schematic diagrams.

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] Existing technology requires disassembling the inner tube flange and removing the inner tube nut, flange, key, and packing gland when replacing the packing in a long telescopic steam sootblower. Then, during the filling process, one layer of packing is installed, and the packing gland is used to press in another layer, repeating this process until installation is complete. However, this method is problematic in practice because the packing is shaped graphite ring packing, which is a brittle material and cannot withstand excessive force. Furthermore, the limited installation space makes it easy to damage the packing and inner nozzle during installation, leading to leak failure. Repeated filling processes can also damage the packing and spare parts used for packing installation, such as the packing gland bolts. Finally, the entire filling process is cumbersome.

[0030] In view of this, the present invention proposes a long telescopic steam soot blower packing installation tool, which can install the packing assembly into the stuffing box in one go. The entire filling operation is simple and quick, and will not damage the packing, inner gun barrel and related spare parts.

[0031] Combination Figures 1 to 3 As shown, a long telescopic steam soot blower packing installation tool is used to install packing 7 between an inner tube 6 and an outer tube. The inner tube 6 has a trolley 5. The tool is characterized by comprising:

[0032] The guide rod 10 is vertically positioned on the side of the sports car 5 near the inner tube flange 3;

[0033] The guide sleeve 9 has a first inner hole 91, which is clearance-fitted with the outer wall of the packing 7. The guide sleeve 9 is also provided with a guide hole 92, the axis of the guide hole 92 is parallel to the axis of the first inner hole 91, and the guide hole 92 is clearance-fitted with the guide rod 10.

[0034] The press-in inner sleeve 8 is located between the inner tube flange 3 and the carriage 5. The press-in inner sleeve 8 has a second inner hole 81, which is clearance-fitted with the outer wall of the inner tube 6. The outer wall of the press-in inner sleeve 8 is clearance-fitted with the first inner hole 91. The press-in inner sleeve 8 is used to abut against the inner tube flange 3 when the carriage 5 drives the outer tube to move, so that the press-in inner sleeve 8 pushes the packing 7 into the stuffing box between the inner tube 6 and the outer tube.

[0035] As an alternative embodiment, the guide sleeve 9 has at least two guide holes 92, each of which is evenly distributed around the first inner hole 91 and its position corresponds to the position of the packing bolt. This ensures the stability and symmetrical force distribution of the guide sleeve 9 during installation, avoids possible tilting, and prevents damage to the packing 7 or the mounting components.

[0036] As an alternative embodiment, the outer wall of the packing 7 is coated with molybdenum disulfide powder. The lubrication of the molybdenum disulfide powder facilitates the installation of the packing 7 and prevents damage to the packing 7. It also prevents the packing 7 from being squeezed and damaged by the inner sleeve 8.

[0037] As an alternative embodiment, the material of the press-in inner sleeve 8 is nylon or polytetrafluoroethylene. The selection of the above two materials has both a certain strength and a certain toughness, which can avoid damage to the filler during the installation process. Compared with the above two materials, nylon is better to choose because nylon is easier to manufacture and process.

[0038] As an alternative embodiment, the guide sleeve 9 is formed by two or more first arc-shaped walls, each of which is provided with a guide hole 92. The press-in inner sleeve 8 is formed by two or more second arc-shaped walls, and a shoulder 82 is fitted on the outer wall of the press-in inner sleeve 8. The shoulder 82 is formed by two third arc-shaped walls, which are connected by bolts. By adopting the above technical solution, after the packing 7 is installed, the guide sleeve 9 and the press-in inner sleeve 8 can be removed without removing the valve mounting plate 1, inner tube nut 2 and inner tube flange 3 on the inner tube 6, which can reduce the workload. Specifically, the shoulder 8 is used to fix the two halves of the inner sleeve 8 for temporary fixing, so as to prevent the inner sleeve 7 from cracking and being unable to enter when it first enters the stuffing box, and thus not remaining in the stuffing box.

[0039] As an alternative embodiment, each of the first arc-shaped walls is provided with a guide hole 92, which can improve the stability of the installation of the first arc-shaped wall and prevent the first arc-shaped wall from falling off.

[0040] As an alternative embodiment, each of the ends of the adjacent first arc-shaped walls that come into contact with each other is provided with a first groove 93 and a first protrusion 94 that fit into each other, which can improve the stability of the installation between the first arc-shaped walls and avoid misalignment between the first arc-shaped walls.

[0041] As an alternative embodiment, each of the adjacent second arc-shaped walls has a second groove 83 and a second protrusion 84 that fit into each other between their contacting ends, which can improve the stability of the installation between the second arc-shaped walls and avoid misalignment between the second arc-shaped walls.

[0042] In at least one embodiment of the present invention, one end of the guide rod 10 is provided with a thread, the thread of the threaded end of the guide rod 10 is consistent with the thread of the filler bolt, and the guide rod is threadedly connected to the sports car.

[0043] As an alternative embodiment, the shoulder 82 is provided at one end of the outer wall of the press-in inner sleeve 8, and the end of the press-in inner sleeve 8 away from the shoulder 82 is made of nylon. By adopting the above technical solution, the ineffective length of the press-in inner sleeve 8 can be reduced.

[0044] The working principle and usage method of this embodiment:

[0045] This utility model provides a long telescopic steam sootblower packing installation tool. When using this tool, after removing the valve mounting plate 1, inner tube nut 2, inner tube flange 3 on the inner tube 6, and the packing bolts on the carriage 5, first install the guide rod 10 at the original packing bolt location. Then, install the guide sleeve 9 onto the guide rod 10 through the guide hole 92. The first inner hole 91 of the guide sleeve 9 is fitted outside the inner tube 6. The installed packing 7 is then placed entirely into the guide sleeve 9. Next, the press-fit inner sleeve 8 is installed into the guide sleeve 9, with the second inner hole 81 fitted outside the inner tube 6. Finally, the valve mounting plate 1, inner tube nut 2, and inner tube flange 3 on the inner tube 6 are reinstalled. After installation, only... The outer tube is moved by cranking the manual handle of the sports car 5, causing relative movement between the inner tube 6 and the outer tube. The outer tube drives the guide sleeve 9 outward, and the inner tube flange 3 can hold the press-in inner sleeve 8 fitted on the inner tube 6, thereby holding the packing 7, so that the packing 7 can enter the stuffing box between the outer gun barrel and the inner tube 6. Using the above technical solution, the packing group can be installed into the stuffing box in one go, which is convenient and will not cause damage to the packing 7 and the installation parts. After the packing 7 is installed, the valve mounting plate 1, inner tube nut 2 and inner tube flange 3 on the inner tube 6 are removed again. Then the guide sleeve 9 is removed from the guide rod 10. When removing the guide sleeve 9, the guide sleeve 9 can hold the shoulder 82, and the press-in inner sleeve 8 can be removed together.

[0046] The above embodiments are merely specific implementations of this utility model patent, used to illustrate the technical solution of this utility model patent, and not to limit it. The protection scope of this utility model patent is not limited thereto. Although this utility model patent has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions implemented by this utility model patent, and should all be covered within the protection scope of this utility model.

Claims

1. A long telescopic steam soot blower packing installation tool for installing packing (7) into a stuffing box between an inner tube (6) and an outer tube, wherein the inner tube (6) has an inner tube flange (3) and the outer tube has a trolley (5), characterized in that, include: The guide rod (10) is vertically installed on the side of the sports car (5) near the inner tube flange (3); The guide sleeve (9) has a first inner hole (91), which is clearance-fitted with the outer wall of the packing (7). The guide sleeve (9) is also provided with a guide hole (92), the axis of the guide hole (92) is parallel to the axis of the first inner hole (91), and the guide hole (92) is clearance-fitted with the guide rod (10). A press-in inner sleeve (8) is located between the inner tube flange (3) and the carriage (5). The press-in inner sleeve (8) has a second inner hole (81), which is clearance-fitted with the outer wall of the inner tube (6). The outer wall of the press-in inner sleeve (8) is clearance-fitted with the first inner hole (91). The press-in inner sleeve (8) is used to abut against the inner tube flange (3) when the carriage (5) drives the outer tube to move, so that the press-in inner sleeve (8) pushes the packing (7) into the stuffing box between the inner tube (6) and the outer tube.

2. The long telescopic steam soot blower packing installation tool as described in claim 1, characterized in that, The guide sleeve (9) is formed by two or more first arc-shaped walls, and each first arc-shaped wall is provided with a guide hole (92). The press-in inner sleeve (8) is formed by two or more second arc-shaped walls. The outer wall of the press-in inner sleeve (8) is fitted with a shoulder (82). The shoulder (82) is formed by two third arc-shaped walls, and the two third arc-shaped walls are connected by bolts.

3. The long telescopic steam soot blower packing installation tool as described in claim 1, characterized in that, One end of the guide rod (10) is threaded, and the thread of the threaded end of the guide rod (10) is consistent with the thread of the packing bolt. The guide rod is threadedly connected to the sports car.

4. The long telescopic steam soot blower packing installation tool as described in claim 1, characterized in that, The guide sleeve (9) has at least two guide holes (92), each guide hole (92) is evenly distributed around the first inner hole (91), and the position corresponds to the position of the packing bolt.

5. The long telescopic steam soot blower packing installation tool as described in claim 1, characterized in that, The outer wall of the filler (7) is coated with molybdenum disulfide powder.

6. The long telescopic steam soot blower packing installation tool as described in claim 1, characterized in that, The material of the pressed inner sleeve (8) is nylon or polytetrafluoroethylene.

7. The long telescopic steam soot blower packing installation tool as described in claim 2, characterized in that, Each of the adjacent first arc-shaped walls has a first groove (93) and a first protrusion (94) that fit together between the ends of each other.

8. The long telescopic steam soot blower packing installation tool as described in claim 2, characterized in that, Each of the adjacent second arc-shaped walls has a second groove (83) and a second protrusion (84) that fit into each other between their contacting ends.

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