Detachable filter screen structure of flue gas pipeline

Abstract

The utility model relates to the technical field of flue gas pipelines, in particular to a detachable filter screen structure of a flue gas pipeline. Comprising a mounting assembly, a dismounting assembly and a filtering assembly, the mounting assembly comprises a mounting flange and a sealing gasket, the inner wall of the mounting flange is connected with a mounting ring, the dismounting assembly comprises a filtering pipe, one end of the filtering pipe is connected with a connecting pipe, and the filtering assembly comprises a connecting clamping ring and a dismounting pipe. A first filter screen is connected to one end of the connecting clamping ring, a limiting plate is connected to the end, away from the connecting clamping ring, of the first filter screen, an inserting ring is connected to the end, away from the inserting ring, of the limiting plate, and a second filter screen is arranged on the inner side of the dismounting pipe. When the detachable pipe is connected with the filter pipe, the detachable pipe is in contact fit with the positioning pipe, meanwhile, the sealing performance of connection of the detachable pipe and the positioning pipe can be improved by placing a sealing gasket between the detachable pipe and the positioning pipe, and the smoke filtering effect is improved by arranging a second filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas pipelines, in particular to a detachable filter screen structure for a flue gas pipeline. Background Art

[0002] According to the national standard "Code for Thermal Design of Civil Buildings" (GB50176-93), the average temperatures of the coldest and hottest months in the year are used as the main indicators, and the number of days with the cumulative average daily temperature ≤5℃ and ≥25℃ is used as auxiliary indicators to divide the country into five regions: extremely cold, cold, hot summer and cold winter, hot summer and warm winter, and mild.

[0003] In order to solve the basic living needs of residents in northern my country for heating in winter, heating is a social service that solves the basic living needs of residents in these places for heating in winter.

[0004] The existing flue gas duct used for heating cannot perform double filtering on the flue gas when in use, and it is also inconvenient to disassemble the filter screen. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to provide a detachable filter structure for a flue gas duct, which solves the problem that the flue gas cannot be double-filtered and the filter is not convenient to disassemble. By setting a second filter, the effect of flue gas filtration is improved, the disassembly tube is separated from the installation ring, and then the disassembly tube is separated from the positioning tube, thereby realizing the disassembly of the second filter.

[0006] To achieve the above objectives, the utility model adopts the following technical solution: a detachable filter structure for a flue gas duct, comprising an installation component, a disassembly component, and a filter component, the installation component comprising a mounting flange and a sealing gasket, the inner wall of the mounting flange is connected to a mounting ring, the inner side of the mounting ring is provided with a countersunk hole, the disassembly component comprises a filter tube, one end of the filter tube is connected to a connecting tube, the inner side of the connecting tube is provided with a connecting hole, the end of the filter tube away from the connecting tube is connected to a positioning tube, the inner wall of the positioning tube is connected to a stabilizing block, the end of the stabilizing block away from the positioning tube is connected to the positioning block, the filter component comprises a connecting clamp and a disassembly tube, one end of the connecting clamp is connected to a first filter, the end of the first filter away from the connecting clamp is connected to a limiting plate, the end of the limiting plate away from the plug-in ring is connected to a plug-in ring, and a second filter is arranged on the inner side of the disassembly tube.

[0007] The beneficial effects of the utility model are as follows: when the disassembly tube is connected to the filter tube, the disassembly tube is brought into contact with and fitted with the positioning tube, and a sealing gasket can be placed between the disassembly tube and the positioning tube to improve the sealing performance of the connection between the disassembly tube and the positioning tube. By setting the second filter screen, the smoke filtration effect is improved. After the disassembly tube is brought into contact with and fitted with the positioning tube, the end of the disassembly tube away from the positioning tube is brought into contact with and fitted with the mounting ring, and a sealing gasket can be placed between the disassembly tube and the mounting ring to improve the sealing performance of the connection between the disassembly tube and the mounting ring. Then, the mounting ring, the disassembly tube and the positioning tube are connected by bolts. When the second filter screen needs to be disassembled, the bolts are loosened and removed to separate the disassembly tube from the mounting ring, and then the disassembly tube and the positioning tube are separated, thereby realizing the disassembly of the second filter screen.

[0008] In order to ensure the sealing after connection by setting the mounting flange and the mounting ring as an integrated structure:

[0009] As a further improvement of the above technical solution: the mounting flange and the mounting ring are integrally formed, the thickness of the mounting flange is half of the thickness of the mounting ring, and a plurality of through holes for connecting with the flue gas duct flange are arranged on the inner side of the mounting flange.

[0010] The beneficial effect of this improvement is that when in use, the mounting flange is brought into contact with and fitted onto the flue gas duct flange, and then bolts are used to connect the mounting flange to the flue gas duct flange. The mounting flange and the mounting ring are integrally formed into a structure to ensure sealing after connection.

[0011] In order to ensure the sealing when the mounting flange is connected to the filter tube:

[0012] As a further improvement of the above technical solution: the sealing gasket is a rubber gasket, and a connecting hole is opened on the inner side of the sealing gasket.

[0013] The beneficial effect of this improvement is that when connecting the filter tube to the mounting flange, the sealing gasket is first placed between the mounting ring and the connecting pipe, and then the mounting ring, the sealing gasket, the connecting clamp and the connecting pipe are connected using bolts. The setting of the sealing gasket is used to ensure the sealing when the mounting flange is connected to the filter tube.

[0014] In order to separate the connecting clamp from the filter tube and disassemble the first filter:

[0015] As a further improvement of the above technical solution: a plug-in groove is provided on the inner side of the positioning tube, and the size of the plug-in groove matches the size of the plug-in ring.

[0016] The beneficial effect of this improvement is: when connecting the connecting clamp and the filter tube, the connecting clamp is smoothly inserted into the filter tube until the plug-in ring is inserted into the plug-in groove, and then until the connecting clamp is in contact with the connecting tube and fits, and then the mounting ring, sealing gasket, connecting clamp and connecting tube are connected by bolts, thereby realizing the connection among the mounting flange, filter tube and connecting clamp; when the connecting clamp needs to be disassembled, the bolts are loosened and removed, the filter tube is separated from the mounting flange, and then the connecting clamp is separated from the filter tube, thereby realizing the disassembly of the first filter screen.

[0017] In order to limit the position of the connecting clamp in the filter tube:

[0018] As a further improvement of the above technical solution: the filter tube, the connecting tube and the positioning tube are integrally formed, the diameter of the positioning block is the same as the diameter of the limiting plate, and a connecting hole is provided on the inner side of the positioning tube.

[0019] The beneficial effect of this improvement is that the slot body for inserting the plug-in ring is provided through the provision of the plug-in slot, and the positioning block is provided to fit with the limit plate, thereby achieving the limitation of the position of the connecting clamp ring inside the filter tube.

[0020] In order to improve the sealing performance of the connection between the connecting clamp and the connecting pipe:

[0021] As a further improvement of the above technical solution: a connecting hole is provided on the inner side of the connecting clamp, and the first filter screen is arranged in a truncated cone structure.

[0022] The beneficial effect of this improvement is: the connecting clamp is smoothly inserted into the filter tube, and the plug-in ring is inserted into the plug-in groove, and then the connecting clamp is connected to the connecting tube. At the same time, a sealing gasket can be placed between the connecting clamp and the connecting tube to improve the sealing of the connection between the connecting clamp and the connecting tube.

[0023] In order to improve the smoke filtration effect by setting the second filter:

[0024] As a further improvement of the above technical solution: the diameter of the disassembly tube is the same as the diameter of the positioning tube, and a connecting hole is opened on the inner side of the disassembly tube.

[0025] The beneficial effect of this improvement is that when the disassembly tube is connected to the filter tube, the disassembly tube is brought into contact with the positioning tube and fits therewith. At the same time, a sealing gasket can be placed between the disassembly tube and the positioning tube to improve the sealing of the connection between the disassembly tube and the positioning tube. By setting a second filter screen, the smoke filtering effect is improved.

[0026] In order to separate the disassembly tube from the positioning tube, and then disassemble the second filter:

[0027] As a further improvement of the above technical solution: the mounting flanges are used together as a group of two, and one end of the mounting flange away from the mounting ring is connected to the flue gas duct flange.

[0028] The beneficial effect of this improvement is: after the disassembly tube is brought into contact and fit with the positioning tube, the end of the disassembly tube away from the positioning tube is brought into contact and fit with the mounting ring, and at the same time, a sealing gasket can be placed between the disassembly tube and the mounting ring to improve the sealing of the connection between the disassembly tube and the mounting ring, and then the mounting ring, the disassembly tube and the positioning tube are connected with bolts. When the second filter screen needs to be disassembled, the bolts are loosened and removed, the disassembly tube is separated from the mounting ring, and then the disassembly tube is separated from the positioning tube, thereby realizing the disassembly of the second filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the filter tube of the utility model.

[0030] Figure 2 It is a structural schematic diagram of the mounting flange of the utility model.

[0031] Figure 3 It is a structural schematic diagram of the mounting ring of the utility model.

[0032] Figure 4 It is a schematic diagram of the cross-sectional structure of the filter tube of the utility model.

[0033] Figure 5 It is a structural schematic diagram of the positioning tube of the utility model.

[0034] Figure 6 It is a structural schematic diagram of the plug-in ring of the utility model.

[0035] In the figure: 1. Installation assembly; 11. Installation flange; 12. Installation ring; 13. Countersunk hole; 14. Sealing gasket; 2. Disassembly assembly; 21. Filter tube; 22. Connecting tube; 23. Connecting hole; 24. Plug-in groove; 25. Positioning tube; 26. Positioning block; 27. Stabilizing block; 3. Filter assembly; 31. Connecting clamp; 32. First filter screen; 33. Plug-in ring; 34. Limiting plate; 35. Disassembly tube; 36. Second filter screen. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0037] like Figure 1-6As shown, a detachable filter screen structure for a flue gas duct includes a mounting component 1, a disassembly component 2, and a filter component 3. The mounting component 1 includes a mounting flange 11 and a sealing gasket 14. The inner wall of the mounting flange 11 is connected to a mounting ring 12, and a countersunk hole 13 is provided on the inner side of the mounting ring 12. The disassembly component 2 includes a filter tube 21, one end of the filter tube 21 is connected to a connecting tube 22, and a connecting hole 23 is provided on the inner side of the connecting tube 22. The end of the filter tube 21 away from the connecting tube 22 is connected to a positioning tube 25, and the inner wall of the positioning tube 25 is connected to a stabilizing block 27, and the end of the stabilizing block 27 away from the positioning tube 25 is connected to a positioning block 26. The filter component 3 includes a connecting clamp 31 and a disassembly tube 35. One end of the connecting clamp ring 31 is connected to a first filter screen 32, and the end of the first filter screen 32 away from the connecting clamp ring 31 is connected to a limiting plate 34, and the end of the limiting plate 34 away from the plug-in ring 33 is connected to the plug-in ring 33. A second filter screen 36 is arranged on the inner side of the disassembly tube 35, and the mounting flange 11 and the mounting ring 12 are arranged as an integral structure, and the thickness of the mounting flange 11 is half of the thickness of the mounting ring 12. A plurality of through holes for connecting to the flue gas pipe flange are arranged on the inner side of the mounting flange 11; when in use, the mounting flange 11 is contacted and fitted with the flue gas pipe flange, and then the mounting flange 11 is connected to the flue gas pipe flange with bolts, and the mounting flange 11 and the mounting ring 12 are arranged as an integral structure. , to ensure the sealing after connection, the sealing gasket 14 is a rubber gasket, and a connecting hole 23 is opened on the inner side of the sealing gasket 14; when connecting the filter tube 21 to the mounting flange 11, first place the sealing gasket 14 between the mounting ring 12 and the connecting tube 22, and then use bolts to connect the mounting ring 12, the sealing gasket 14, the connecting clamp ring 31, and the connecting tube 22. The setting of the sealing gasket 14 is used to ensure the sealing when the mounting flange 11 is connected to the filter tube 21. The inner side of the positioning tube 25 is provided with a plug-in groove 24, and the size of the plug-in groove 24 matches the size of the plug-in ring 33; when the connecting clamp ring 31 is connected to the filter tube 21, the connecting clamp ring 31 is smoothly inserted into the filter tube 21, and until the plug-in ring 33 is connected 3 is inserted into the plug-in slot 24, and then until the connecting clamp ring 31 contacts and fits with the connecting pipe 22, and then the mounting ring 12, the sealing gasket 14, the connecting clamp ring 31 and the connecting pipe 22 are connected by bolts, thereby realizing the connection among the mounting flange 11, the filter pipe 21 and the connecting clamp ring 31. When it is necessary to disassemble the connecting clamp ring 31, the bolts are loosened and removed, the filter pipe 21 is separated from the mounting flange 11, and then the connecting clamp ring 31 is separated from the filter pipe 21, thereby realizing the disassembly of the first filter screen 32. The filter pipe 21, the connecting pipe 22 and the positioning pipe 25 are arranged as an integrated structure, the diameter of the positioning block 26 is the same as the diameter of the limiting plate 34, and the inner side of the positioning pipe 25 is provided with a connecting hole 23;The slot body for inserting the plug-in ring 33 is provided through the setting of the plug-in groove 24, and the positioning block 26 is provided to fit with the limiting plate 34, thereby realizing the limitation of the position of the connecting clamp ring 31 inside the filter tube 21. The inner side of the connecting clamp ring 31 is provided with a connecting hole 23, and the first filter screen 32 is provided with a truncated cone structure; the connecting clamp ring 31 is smoothly inserted into the filter tube 21, and the plug-in ring 33 is inserted into the plug-in groove 24, and then the connecting clamp ring 31 is connected to the connecting tube 22. At the same time, the sealing gasket 14 can be placed between the connecting clamp ring 31 and the connecting tube 22 to improve the sealing performance of the connection between the connecting clamp ring 31 and the connecting tube 22. The diameter of the disassembly tube 35 is the same as the diameter of the positioning tube 25, and the inner side of the disassembly tube 35 is provided with a connecting hole 23; when the disassembly tube 35 is connected to the filter tube 21, the disassembly tube 35 is contacted and fitted with the positioning tube 25, and at the same time, the disassembly tube 35 can be connected to the filter tube 21. A sealing gasket 14 is placed between the positioning tube 25 to improve the sealing performance of the connection between the disassembly tube 35 and the positioning tube 25. The second filter screen 36 is set to improve the effect of flue gas filtering. The mounting flange 11 is used in pairs as a group. The end of the mounting flange 11 away from the mounting ring 12 is connected to the flue gas pipe flange. After the disassembly tube 35 is in contact with the positioning tube 25, the end of the disassembly tube 35 away from the positioning tube 25 is in contact with the mounting ring 12. At the same time, the sealing gasket 14 can be placed between the disassembly tube 35 and the mounting ring 12 to improve the sealing performance of the connection between the disassembly tube 35 and the mounting ring 12. Then, the mounting ring 12, the disassembly tube 35 and the positioning tube 25 are connected by bolts. When the second filter screen 36 needs to be disassembled, the bolts are loosened and removed to separate the disassembly tube 35 from the mounting ring 12, and then the disassembly tube 35 is separated from the positioning tube 25, thereby realizing the disassembly of the second filter screen 36. ;

[0038] The working principle of the utility model is as follows: when using, when connecting the filter tube 21 with the mounting flange 11, first place the sealing gasket 14 between the mounting ring 12 and the connecting tube 22, and then use bolts to connect the mounting ring 12, the sealing gasket 14, the connecting clamp ring 31, and the connecting tube 22. The setting of the sealing gasket 14 is used to ensure the sealing when the mounting flange 11 is connected to the filter tube 21. When the connecting clamp ring 31 is connected to the filter tube 21, the connecting clamp ring 31 is smoothly inserted into the filter tube 21 until the plug-in ring 33 is inserted into the plug-in groove 24, and then until the connecting clamp ring 31 is in contact with the connecting tube 22. Fit, and then use bolts to fix the mounting ring 12, the sealing gasket 1 4. The connecting clamp ring 31 and the connecting tube 22 are connected to realize the connection among the mounting flange 11, the filter tube 21 and the connecting clamp ring 31. When the connecting clamp ring 31 needs to be disassembled, the bolts are loosened and removed to separate the filter tube 21 from the mounting flange 11, and then the connecting clamp ring 31 and the filter tube 21 are separated to realize the disassembly of the first filter screen 32. The slot body for inserting the plug-in ring 33 is provided through the setting of the plug-in groove 24, and the positioning block 26 is provided to fit with the limiting plate 34 to realize the limitation of the position of the connecting clamp ring 31 in the filter tube 21, and the connecting clamp ring 31 is smoothly inserted into the filter tube 21, and the plug-in ring 33 is inserted into the plug-in groove 24. The connecting ring 31 is then connected to the connecting tube 22. At the same time, a sealing gasket 14 can be placed between the connecting ring 31 and the connecting tube 22 to improve the sealing performance of the connection between the connecting ring 31 and the connecting tube 22. When the disassembly tube 35 is connected to the filter tube 21, the disassembly tube 35 is brought into contact with the positioning tube 25. At the same time, a sealing gasket 14 can be placed between the disassembly tube 35 and the positioning tube 25 to improve the sealing performance of the connection between the disassembly tube 35 and the positioning tube 25. The second filter screen 36 is provided to improve the effect of smoke filtration. After the disassembly tube 35 is brought into contact with the positioning tube 25, one end of the disassembly tube 35 away from the positioning tube 25 is brought into contact with the mounting ring 12. The sealing performance of the connection between the disassembly tube 35 and the mounting ring 12 can be improved by placing a sealing gasket 14 between the disassembly tube 35 and the mounting ring 12, and then the mounting ring 12, the disassembly tube 35, and the positioning tube 25 are connected by bolts. When the second filter screen 36 needs to be disassembled, the bolts are loosened and removed, the disassembly tube 35 is separated from the mounting ring 12, and then the disassembly tube 35 is separated from the positioning tube 25, thereby realizing the disassembly of the second filter screen 36, and the mounting flange 11 is contacted and fitted with the flue gas duct flange, and then the mounting flange 11 is connected with the flue gas duct flange by bolts. The mounting flange 11 and the mounting ring 12 are arranged as an integrated structure to ensure the sealing performance after connection.

[0039] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0040] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A detachable filter screen structure for a flue gas duct, comprising a mounting assembly (1), a disassembly assembly (2), and a filter assembly (3), wherein the mounting assembly (1) comprises a mounting flange (11) and a sealing gasket (14), and is characterized in that: The inner wall of the mounting flange (11) is connected to a mounting ring (12), and a countersunk hole (13) is provided on the inner side of the mounting ring (12). The disassembly assembly (2) comprises a filter tube (21), one end of the filter tube (21) is connected to a connecting tube (22), and a connecting hole (23) is provided on the inner side of the connecting tube (22). The end of the filter tube (21) away from the connecting tube (22) is connected to a positioning tube (25), and the inner wall of the positioning tube (25) is connected to a stabilizing block (27). The end of the block (27) away from the positioning tube (25) is connected to a positioning block (26), the filter assembly (3) comprises a connecting clamp ring (31) and a disassembly tube (35), one end of the connecting clamp ring (31) is connected to a first filter screen (32), one end of the first filter screen (32) away from the connecting clamp ring (31) is connected to a limiting plate (34), one end of the limiting plate (34) away from the plug-in ring (33) is connected to the plug-in ring (33), and a second filter screen (36) is arranged on the inner side of the disassembly tube (35).

2. The detachable filter screen structure for a flue gas duct according to claim 1, characterized in that: The mounting flange (11) and the mounting ring (12) are arranged as an integrally formed structure, the thickness of the mounting flange (11) is half the thickness of the mounting ring (12), and a plurality of through holes for connecting to a flue gas duct flange are arranged on the inner side of the mounting flange (11).

3. The detachable filter screen structure for a flue gas duct according to claim 1, characterized in that: The sealing pad (14) is a rubber pad, and a connecting hole (23) is provided on the inner side of the sealing pad (14).

4. The detachable filter screen structure for a flue gas duct according to claim 1, characterized in that: An inserting groove (24) is provided on the inner side of the positioning tube (25), and the size of the inserting groove (24) matches the size of the inserting ring (33).

5. The detachable filter screen structure for a flue gas duct according to claim 1, characterized in that: The filter tube (21), the connecting tube (22) and the positioning tube (25) are arranged as an integrally formed structure; the diameter of the positioning block (26) is the same as the diameter of the limiting plate (34); and a connecting hole (23) is provided on the inner side of the positioning tube (25).

6. The detachable filter screen structure for a flue gas duct according to claim 1, characterized in that: A connecting hole (23) is provided on the inner side of the connecting clamp ring (31), and the first filter screen (32) is arranged in a truncated cone-shaped structure.

7. The detachable filter screen structure for a flue gas duct according to claim 1, characterized in that: The diameter of the disassembly tube (35) is the same as the diameter of the positioning tube (25), and a connecting hole (23) is provided on the inner side of the disassembly tube (35).

8. The detachable filter screen structure for a flue gas duct according to claim 1, characterized in that: The mounting flanges (11) are used together in groups of two, and one end of the mounting flange (11) away from the mounting ring (12) is connected to the flange of the flue gas duct.

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