Flue gas pipeline with heat dissipation device

Abstract

The flue gas pipeline with the heat dissipation device comprises a chimney, a heat exchange sleeve is arranged outside the chimney, the heat exchange sleeve is in a sleeve mode, the heat exchange sleeve and the outer wall face of the chimney are integrally connected, and a cavity between the heat exchange sleeve and the outer wall of the chimney is a heat exchange cavity; a refrigerant connecting pipe is arranged on one side of the heat exchange sleeve; a medium runner pipe is arranged on one side, opposite to the refrigerant connecting pipe, of the heat exchange sleeve; and the refrigerant connection pipe and the medium runner pipe are communicated with the heat exchange chamber. The problems that in the prior art, a chimney deforms due to overheating, and sintering and dust accumulation on the inner wall are serious due to overheating are solved, the service life of the chimney is prolonged, and auxiliary cooling can be carried out on smoke exhausted by the chimney. The device is simple in structure, convenient to assemble and low in maintenance cost.

Description

Technical Field

[0001] The utility model relates to the field of general heat dissipation components, in particular to a flue gas pipeline with a heat dissipation device. Background Art

[0002] In the prior art, little attention has been paid to the situation that overheated flue gas reduces the service life of the chimney. Specifically, for example, the overheated flue gas causes the chimney to overheat, especially the lower part of the chimney. Repeated overheating and cooling lead to the deformation of the chimney, and the particulate matter in the flue gas melts and sinters to adhere to the inner wall of the chimney, especially the lower part of the chimney where heat storage is serious and more ash accumulates.

[0003] To solve the above problems, for example, a water-cooled flue with segmented cooling disclosed in Chinese Patent CN202322283923.X uses water as a heat exchange medium to exchange heat for a part of the chimney. However, there are obvious and unreasonable aspects in the setting form of this device. First, the structural form is complex and not applicable to the implementation environment such as small commercial boilers. Second, the structure of the device itself is unreasonable. The whole device is sleeved on the chimney, with water as the heat exchange medium, but the cooling of the heated water depends on the fins arranged on the outer wall of the chimney, and the fin heat exchange is realized based on the blower arranged on the outer wall of the chimney at the same time. The above implementation means have obvious unnecessary energy consumption losses, and due to this setting form, the implementation conditions of the device are more demanding and the assembly is more complex. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a flue gas pipeline with a heat dissipation device that has a simple structure, is convenient to assemble, uses air or water as a heat exchange medium, and is especially suitable for small boilers.

[0005] The device includes a chimney, which is the assembly main body of the device;

[0006] A heat exchange sleeve is arranged outside the chimney. The heat exchange sleeve is in the form of a sleeve and is integrally connected to the outer wall surface of the chimney. The chamber between the heat exchange sleeve and the outer wall of the chimney is a heat exchange chamber;

[0007] A refrigerant connection pipe is arranged on one side of the heat exchange sleeve;

[0008] On the heat exchange sleeve, a medium circulation pipe is arranged on the opposite side of the refrigerant connection pipe; the refrigerant connection pipe and the medium circulation pipe are communicated with the heat exchange chamber.

[0009] The achieved effect is that the refrigerant enters the heat exchange chamber through the refrigerant connection pipe for heat exchange, and the heat-exchanged refrigerant is discharged through the medium circulation pipe, achieving the purpose of preventing the chimney from overheating and being able to assist in cooling the flue gas discharged from the chimney.

[0010] The beneficial effects of the present utility model are as follows: The present utility model solves the problems of overheating and deformation of the chimney in the prior art, as well as serious sintering and ash accumulation on the inner wall due to overheating, improves the service life of the chimney, and can assist in cooling the flue gas discharged from the chimney. In particular, the device has a simple structure, convenient assembly, and low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is an external view schematic diagram of a flue gas pipeline with a heat dissipation device according to the present utility model;

[0012] Figure 2 is a schematic structural diagram of Embodiment 1 of a flue gas pipeline with a heat dissipation device according to the present utility model from a sectional view perspective;

[0013] Figure 3 is a schematic structural diagram of Embodiment 2 of a flue gas pipeline with a heat dissipation device according to the present utility model from a sectional view perspective;

[0014] Figure 4 is a schematic structural diagram of Embodiment 5;

[0015] Figure 5 is a schematic structural diagram of Embodiment 6;

[0016] Reference Signs:

[0017] 1 - heat exchange sleeve, 2 - refrigerant connection pipe, 3 - medium flow pipe, 4 - chimney, 5 - heat exchange chamber, 6 - blower, 7 - heat exchange fins

[0018] The realization, functional features, and advantages of the object of the present utility model will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 a flue gas pipeline with a heat dissipation device according to the present utility model includes a chimney 4, and the chimney 4 is the main assembly of the device;

[0020] A heat exchange sleeve 1 is arranged outside the chimney 4. The heat exchange sleeve 1 is in the form of a sleeve and is integrally connected to the outer wall surface of the chimney 4. The chamber between the heat exchange sleeve 1 and the outer wall of the chimney 4 is a heat exchange chamber 5;

[0021] A refrigerant connection pipe 2 is arranged on one side of the heat exchange sleeve 1;

[0022] On the heat exchange sleeve 1, a medium flow pipe 3 is arranged on the opposite side of the refrigerant connection pipe 2; the refrigerant connection pipe 2 and the medium flow pipe 3 communicate with the heat exchange chamber 5.

[0023] The achieved effect is that the refrigerant enters the heat exchange chamber 5 through the refrigerant connection pipe 2 for heat exchange, and the refrigerant after heat exchange is discharged through the medium circulation pipe 3, serving the purpose of preventing the chimney 4 from overheating and being able to assist in cooling the flue gas discharged from the chimney 4.

[0024] In Embodiment 1, the heat exchange sleeve 1 is arranged at the bottom of the chimney 4, that is, at the connection position between the chimney 4 and the boiler.

[0025] In Embodiment 2, one or more heat exchange sleeves 1 are arranged on the chimney 4.

[0026] In Embodiment 3, referring to the attached drawings of the specification Figure 2 , the refrigerant connection pipe 2 is connected to the blower 6, and a plurality of the medium circulation pipes 3 are arranged in an array.

[0027] The achieved effect is to continuously blow cold air into the heat exchange chamber 5 with cold air as the heat exchange medium.

[0028] In Embodiment 4, referring to the attached drawings of the specification Figure 3 , the refrigerant connection pipe 2 is arranged at the lower part of the heat exchange sleeve 1, and the refrigerant connection pipe 2 is connected to an external water source through a water pump;

[0029] The medium circulation pipe 3 is arranged at the upper part of the heat exchange sleeve 1.

[0030] The achieved effect is to inject circulating cold water into the heat exchange chamber 5 with water as the heat exchange medium.

[0031] In Embodiment 5, referring to the attached drawings of the specification Figure 4 , in the heat exchange chamber 5, heat exchange fins 7 are arranged on the outer wall surface of the chimney 4.

[0032] Preferably, the heat exchange fins 7 are annular corrugated fins.

[0033] The achieved effect is to improve the heat exchange efficiency and thereby improve the cooling effect on the flue gas inside the chimney 4.

[0034] In Embodiment 6, referring to the attached drawings of the specification Figure 5 , a plurality of the medium circulation pipes 3 are arranged, and the refrigerant connection pipe 2 is connected to the medium circulation pipe 3 through pipes;

[0035] The medium circulation pipe 3 passes through the inner cavity of the chimney 4, and its outlet end passes through the heat exchange sleeve 1 and is arranged outside.

[0036] Preferably, heat dissipation fins are arranged on the outside of the medium circulation pipe 3.

[0037] The achieved effect is to improve the cooling effect on the flue gas inside the chimney 4.

[0038] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be construed as limiting the claims.

[0039] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flue gas duct with a heat dissipation device, comprising a chimney, characterized in that: The chimney is provided with a heat exchange sleeve on its outside, the heat exchange sleeve is in the form of a sleeve, the heat exchange sleeve is integrally connected to the chimney outer wall, and the chamber between the heat exchange sleeve and the chimney outer wall is the heat exchange chamber; A refrigerant connection pipe is provided on one side of the heat exchange jacket; On the heat exchange sleeve, a medium flow pipe is arranged on the opposite side of the refrigerant connection pipe; the refrigerant connection pipe and the medium flow pipe are connected with the heat exchange chamber; The heat exchange sleeves are provided in plurality on the chimney; There are multiple medium circulation pipes, and the refrigerant connection pipe is connected to the medium circulation pipe; The medium flow pipe is arranged through the inner cavity of the chimney, and its outlet end is arranged through the heat exchange sleeve.

2. A flue gas duct with a heat dissipation device according to claim 1, characterized in that: The refrigerant connection pipe is connected to the blower, and a plurality of medium flow pipe arrays are provided.

3. The flue gas duct with a heat dissipation device according to claim 1, characterized in that: The refrigerant connecting pipe is arranged at the lower part of the heat exchange sleeve, and the refrigerant connecting pipe is connected to an external water source; The medium flow pipe is arranged on the upper part of the heat exchange jacket.

4. The flue gas duct with a heat dissipation device according to claim 1, characterized in that: In the heat exchange chamber, heat exchange fins are arranged on the outer wall surface of the chimney.

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