Boiler inlet and outlet flue easy to maintain

Abstract

The utility model discloses a boiler inlet and outlet flue easy to maintain, which comprises a flue pipe, the bottom of the flue pipe is fixedly connected with a connecting flange, the inner wall of the connecting flange is provided with a mounting hole, the outer wall of the connecting flange is fixedly connected with a sealing block, the bottom of the connecting flange is fixedly connected with an alignment block, and the alignment block is fixedly connected with the mounting hole. The bottom of the alignment block is fixedly connected with a limiting block, the alignment block is internally provided with a first through groove, the limiting block is internally provided with a second through groove, and the device is provided with the flue pipe, the connecting flange, the mounting hole, the sealing block, the alignment block, the limiting block, the first through groove and the second through groove, so that the function of convenient mounting and dismounting is realized; and in addition, double sealing is carried out after installation, the sealing effect is improved, the problem that leakage is likely to happen during smoke exhaust is solved, the working requirements of people are met, and the smoke exhaust device is worthy of application and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of boilers, and in particular relates to an inlet and outlet flue of a boiler which is easy to maintain. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. When in use, the boiler needs to exhaust smoke through the flue pipe.

[0003] The existing flue pipes are complicated to install and disassemble, which affects the maintenance and overhaul work, and the sealing effect is poor after installation, which leads to the problem of leakage. This phenomenon has become a problem that needs to be solved urgently by people in this field. Utility Model Content

[0004] The utility model aims to provide a boiler inlet and outlet flue that is easy to maintain in the existing device, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an easy-to-maintain boiler inlet and outlet flues, including a flue pipe, a connecting flange fixedly connected to the bottom of the flue pipe, a mounting hole opened in the inner wall of the connecting flange, a sealing block fixedly connected to the outer wall of the connecting flange, an alignment block fixedly connected to the bottom of the connecting flange, a limiting block fixedly connected to the bottom of the alignment block, a first through groove opened inside the alignment block, and a second through groove opened inside the limiting block. By providing the flue pipe, the connecting flange, the mounting hole, the sealing block, the alignment block, the limiting block, the first through groove and the second through groove, the function of easy installation and disassembly is realized, thereby facilitating the maintenance and overhaul work, and double sealing is performed after installation to improve the sealing effect, solve the problem of leakage during smoke exhaust, meet people's work needs, and is worthy of popularization and use.

[0006] Furthermore, the mounting holes are distributed at equal angles along the axial center line of the connecting flange, and the mounting holes are coaxially distributed with the first through slot and the second through slot, respectively, which facilitates the installation of the bolts.

[0007] Furthermore, the sealing block is made of elastic rubber material and has an annular structure, which facilitates sealing work through the sealing block.

[0008] Furthermore, the alignment blocks are distributed in a trapezoidal shape when viewed from the front, and are made of elastic rubber, which facilitates alignment between the alignment blocks and the flange of the boiler during installation, thereby improving the convenience of installation.

[0009] Furthermore, the limit block is made of elastic rubber material, and the limit block is distributed in a trapezoidal shape when viewed from the front, which facilitates the use of the limit block to limit and prevent falling off after alignment and installation, and to seal after the nut and bolt are tightened.

[0010] Furthermore, the top diameter of the first through slot is larger than the diameter of the mounting hole, and the bottom diameter of the first through slot is smaller than the top diameter of the second through slot.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are: the utility model,

[0012] (1) By providing a flue pipe, a connecting flange, a mounting hole, a sealing block, an alignment block, a limit block, a first through groove and a second through groove, the function of easy installation and disassembly is achieved, thereby facilitating maintenance and overhaul work. In addition, double sealing is performed after installation to improve the sealing effect, solve the problem of leakage during smoke exhaust, meet people's work needs, and is worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a partial upward structural schematic diagram of the utility model;

[0016] Figure 3 It is a partial front section structural schematic diagram of the utility model.

[0017] In the figure: 1. flue pipe; 2. connecting flange; 3. mounting hole; 4. sealing block; 5. alignment block; 6. limiting block; 7. first through groove; 8. second through groove. DETAILED DESCRIPTION

[0018] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3The utility model provides a technical solution: an easy-to-maintain boiler inlet and outlet flue, including a flue pipe 1, a connecting flange 2 is fixedly connected to the bottom of the flue pipe 1, a mounting hole 3 is opened on the inner wall of the connecting flange 2, a sealing block 4 is fixedly connected to the outer wall of the connecting flange 2, a positioning block 5 is fixedly connected to the bottom of the connecting flange 2, a limiting block 6 is fixedly connected to the bottom of the positioning block 5, a first through groove 7 is opened inside the positioning block 5, and a second through groove 8 is opened inside the limiting block 6. By arranging the flue pipe 1, the connecting flange 2, the mounting hole 3, the sealing block 4, the positioning block 5, the limiting block 6, the first through groove 7 and the second through groove 8, the function of easy installation and disassembly is realized, thereby facilitating the maintenance and overhaul work, and double sealing is performed after installation, which improves the sealing effect, solves the problem of leakage during smoke exhaust, meets people's work needs, and is worthy of popularization and use.

[0020] Furthermore, the mounting holes 3 are distributed at equal angles along the axial center line of the connecting flange 2, and the mounting holes 3 are coaxially distributed with the first through slot 7 and the second through slot 8, respectively, which facilitates the installation of the bolts.

[0021] Furthermore, the sealing block 4 is made of elastic rubber material and has an annular structure, which facilitates the sealing work through the sealing block 4.

[0022] Furthermore, the alignment block 5 is distributed in a trapezoidal shape when viewed from the front, and the alignment block 5 is made of elastic rubber, which facilitates the alignment of the alignment block 5 with the flange of the boiler during installation, thereby improving the convenience of installation.

[0023] Furthermore, the limit block 6 is made of elastic rubber material, and the limit block 6 is distributed in a trapezoidal shape when viewed from the front, which facilitates the use of the limit block 6 to limit and prevent it from falling off after the positional installation, and to seal it after the nut and bolt are tightened.

[0024] Furthermore, the top diameter of the first through slot 7 is larger than the diameter of the mounting hole 3 , and the bottom diameter of the first through slot 7 is smaller than the top diameter of the second through slot 8 .

[0025] When in use, first drive the flue pipe 1 to connect the connecting flange 2 with the flange of the boiler, so that the connecting flange 2 drives the alignment block 5 to be inserted into the through hole of the boiler flange, and then the mounting hole 3 is aligned with the through hole of the boiler flange, which facilitates the subsequent bolt tightening work. In this process, the alignment block 5 drives the limit block 6 to deform when passing through the through hole of the boiler flange, and returns to its original state after passing through, thereby limiting the position and preventing it from falling off through the limit block 6, solving the problem of cumbersome installation caused by shaking. Finally, after the bolts pass through the mounting hole 3 of the connecting flange 2 and the through hole of the boiler flange, tighten the nut by screwing it, so that the nut squeezes the limit block 6 to deform, and the limit block 6 makes the nut fit more closely with the boiler flange after installation, thereby improving the sealing effect, and after the connecting flange 2 is installed, it drives the sealing block 4 to be sleeved on the outer wall of the boiler flange for further sealing, thereby solving the problem of leakage during smoke exhaust caused by poor sealing effect.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A boiler inlet and outlet flue that is easy to maintain, comprising a flue pipe (1), characterized in that: The bottom of the flue pipe (1) is fixedly connected to a connecting flange (2), the inner wall of the connecting flange (2) is provided with a mounting hole (3), the outer wall of the connecting flange (2) is fixedly connected to a sealing block (4), the bottom of the connecting flange (2) is fixedly connected to a positioning block (5), the bottom of the positioning block (5) is fixedly connected to a limiting block (6), the inside of the positioning block (5) is provided with a first through groove (7), and the inside of the limiting block (6) is provided with a second through groove (8).

2. The easy-to-maintain boiler inlet and outlet flue according to claim 1 is characterized in that: The mounting holes (3) are distributed at equal angles along the axial center line of the connecting flange (2), and the mounting holes (3) are coaxially distributed with the first through groove (7) and the second through groove (8).

3. The easy-to-maintain boiler inlet and outlet flue according to claim 1 is characterized in that: The sealing block (4) is made of elastic rubber material and has an annular structure.

4. The easy-to-maintain boiler inlet and outlet flue according to claim 1 is characterized in that: The alignment blocks (5) are distributed in a trapezoidal shape when viewed from the front, and are made of elastic rubber material.

5. The easy-to-maintain boiler inlet and outlet flue according to claim 1 is characterized in that: The limiting blocks (6) are made of elastic rubber material, and the limiting blocks (6) are distributed in a trapezoidal shape when viewed from the front.

6. The easy-to-maintain boiler inlet and outlet flue according to claim 1, characterized in that: The top diameter of the first through groove (7) is larger than the diameter of the mounting hole (3), and the bottom diameter of the first through groove (7) is smaller than the top diameter of the second through groove (8).

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