Boiler flue gas recirculation device

Abstract

The utility model discloses a boiler flue gas recirculation device which comprises a boiler main body which is arranged on a base in a supporting mode through a supporting rod. The flue gas filtering assembly is arranged at the rear end of the boiler main body, the flue gas filtering assembly is connected with a flue gas outlet pipe of the boiler main body, and flue gas is filtered through the flue gas outlet pipe; the gas inlet pipe comprises a first inlet pipe and a second inlet pipe, the first inlet pipe is connected with the boiler main body, and the second inlet pipe is connected with a neutralizing seat on the base; a part of flue gas of the flue gas filtering assembly is neutralized by a neutralizing seat on the base, and is input into the boiler main body again to be combusted again; and the other part of flue gas is discharged through a discharge pipeline. According to the utility model, part of neutralized flue gas is re-introduced into the boiler for re-combustion, so that residual energy in the flue gas can be fully utilized, and the overall combustion efficiency and heat efficiency of the boiler are improved.

Description

Technical Field

[0001] This utility model relates to a circulation device, specifically a boiler flue gas recirculation device. Background Technology

[0002] Traditional boilers still emit flue gas containing a certain amount of heat, which is often not effectively utilized, resulting in energy waste when directly emitted. The flue gas produced by boiler combustion contains various pollutants, such as nitrogen oxides and particulate matter. Direct emission without treatment will have a negative impact on the environment and does not comply with increasingly stringent environmental regulations. The combustion process of traditional boilers may be affected by various factors, leading to low combustion efficiency, high fuel consumption, and insufficient thermal efficiency. Many traditional systems lack effective automation and precise control, making it difficult to adapt to changing operating conditions and resulting in low system operating efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a boiler flue gas recirculation device to solve the problems existing in the background art.

[0004] This utility model of boiler flue gas recirculation device is achieved through the following technical solutions, including:

[0005] The boiler body is supported on a base by a support rod.

[0006] A flue gas filter assembly is located at the rear end of the boiler body and is connected to the flue gas outlet pipe of the boiler body, through which the flue gas is filtered.

[0007] The gas inlet pipe includes a first inlet pipe and a second inlet pipe, wherein the first inlet pipe is connected to the boiler body and the second inlet pipe is connected to the neutralization seat on the base.

[0008] A portion of the flue gas from the flue gas filtration assembly is neutralized by the neutralization seat on the base and then reintroduced into the boiler body for combustion; the other portion of the flue gas is discharged through the exhaust pipe.

[0009] As a preferred technical solution, the flue gas filtration assembly includes a filter base and a multi-layer filter screen assembly;

[0010] The filter assembly is inserted into the socket located above the filter base. The flue gas generated by the combustion of the boiler body is filtered through the filter assembly to meet the emission standards.

[0011] As a preferred technical solution, the filter assembly includes an insert plate and a filter body; the filter body is disposed on the insert plate, and when the insert plate is inserted into the insertion hole above the filter seat, the flue gas is filtered through the filter body.

[0012] As a preferred technical solution, the neutralization seat is hollow inside, and another pipe of the gas inlet pipe is connected to the neutralization seat, so that the gas and flue gas are mixed in the neutralization seat and then reintroduced into the boiler body under the action of the air pump.

[0013] As a preferred technical solution, the other end of the filter seat is provided with a three-way pipe, one end of which is connected to the exhaust pipe and the other end is connected to the neutralization pipe; a neutralization valve is provided on the neutralization pipe.

[0014] As a preferred technical solution, a first intake valve and a second intake valve are respectively provided on the first and second intake pipes of the gas inlet pipe.

[0015] As a preferred technical solution, it also includes a control panel, which is connected to control the first intake valve, the second intake valve, the neutralization valve, and the air pump.

[0016] The beneficial effects of this utility model are:

[0017] This invention fully utilizes the residual energy in the flue gas by reintroducing a portion of the neutralized flue gas into the boiler for re-combustion, thereby improving the overall combustion efficiency and thermal efficiency of the boiler.

[0018] The flue gas filtration assembly of this invention effectively filters flue gas through multiple layers of filter screens, ensuring that the emitted flue gas meets environmental protection standards and reducing environmental pollution.

[0019] This invention neutralizes a portion of the flue gas using a neutralization seat, allowing it to mix with the fuel gas before entering the boiler. This helps stabilize the combustion process and optimize combustion conditions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0023] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the filter assembly structure of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Boiler body; 2. Flue gas filter assembly; 3. First inlet pipe; 4. Second inlet pipe; 5. Neutralization seat; 6. Filter seat; 7. Filter screen assembly; 8. Insertion hole; 9. Insert plate; 10. Filter screen assembly; 11. T-junction pipe; 12. Exhaust pipe; 13. Neutralization pipe; 14. Air pump; 15. Support rod. Detailed Implementation

[0027] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0028] like Figures 1-4 As shown, a boiler flue gas recirculation device of this utility model includes:

[0029] Boiler body 1, which is supported on a base by a support rod 15;

[0030] Flue gas filter assembly 2 is located at the rear end of the boiler body 1 and is connected to the flue gas outlet pipe of the boiler body 1. The flue gas is filtered through the flue gas outlet pipe.

[0031] The gas inlet pipe includes a first inlet pipe 3 and a second inlet pipe 4, wherein the first inlet pipe 3 is connected to the boiler body 1 and the second inlet pipe 4 is connected to the neutralization seat 5 on the base.

[0032] A portion of the flue gas from the flue gas filter assembly 2 is neutralized by the neutralization seat 5 on the base and then reintroduced into the boiler body 1 for combustion; the other portion of the flue gas is discharged through the exhaust pipe.

[0033] The flue gas filtration assembly 2 includes a filter base 6 and a multi-layer filter assembly 7.

[0034] The filter assembly 7 is inserted into the socket 8 located above the filter base 6. The flue gas generated by the combustion of the boiler body 1 is filtered through the filter assembly 7 to meet the emission standards.

[0035] In order to achieve the filtering effect, in this embodiment, the filter assembly 7 includes an insert plate 9 and a filter body 10; the filter body is disposed on the insert plate 9, and when the insert plate 9 is inserted into the insertion hole 8 above the filter seat 6, the flue gas is filtered through the filter body 10.

[0036] In order to achieve the effect of flue gas recirculation, in this embodiment, the neutralization seat 5 is hollowed out, and another pipe of the gas inlet pipe is connected to the neutralization seat 5, so that the gas and flue gas are mixed in the neutralization seat 5 and then reintroduced into the boiler body 1 under the action of the air pump 14.

[0037] In this embodiment, the other end of the filter seat 6 is provided with a three-way pipe 11, one end of which is connected to the exhaust pipe 12 and the other end is connected to the neutralization pipe 13; a neutralization valve is provided on the neutralization pipe 13.

[0038] In order to control the air intake, in this embodiment, the first intake pipe 3 and the second intake pipe 4 of the gas intake pipe are respectively provided with a first intake valve and a second intake valve.

[0039] For ease of control, this embodiment also includes a control panel, which is connected to control the first intake valve, the second intake valve, the neutralization valve, and the air pump 14.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A boiler flue gas recirculation device, characterized in that, include: Boiler body (1), the boiler body (1) is supported on the base by a support rod; Flue gas filter assembly (2) is located at the rear end of the boiler body (1) and is connected to the flue gas outlet pipe of the boiler body (1). The flue gas is filtered through the flue gas outlet pipe. The gas inlet pipe includes a first inlet pipe (3) and a second inlet pipe (4), wherein the first inlet pipe (3) is connected to the boiler body (1) and the second inlet pipe (4) is connected to the neutralization seat (5) on the base. A portion of the flue gas from the flue gas filter assembly (2) is neutralized by the neutralization seat (5) on the base and then reintroduced into the boiler body (1) for combustion again; the other portion of the flue gas is discharged through the discharge pipe.

2. The boiler flue gas recirculation device according to claim 1, characterized in that: The flue gas filtration assembly (2) includes a filter base (6) and a multi-layer filter assembly (7); The filter assembly (7) is inserted into the socket (8) located above the filter seat (6). The flue gas generated by the combustion of the boiler body (1) is filtered through the filter assembly (7) to meet the emission standards.

3. A boiler flue gas recirculation device according to claim 2, characterised in that: The filter assembly (7) includes an insert plate (9) and a filter body (10); the filter body is disposed on the insert plate (9), and when the insert plate (9) is inserted into the insertion hole (8) above the filter seat (6), the flue gas is filtered through the filter body.

4. The boiler flue gas recirculation device according to claim 1, characterized in that: The neutralizing seat (5) is hollow inside, and another pipe of the gas inlet pipe is connected to the neutralizing seat (5), so that the gas and flue gas are mixed in the neutralizing seat (5) and then reintroduced into the boiler body (1) under the action of the air pump.

5. The boiler flue gas recirculation device according to claim 2, characterized in that: The filter seat (6) is provided with a three-way pipe (11) at the other end, and one end of the three-way pipe (11) is connected to the exhaust pipe (12) and the other end is connected to the neutralization pipe (13); a neutralization valve is provided on the neutralization pipe (13).

6. The boiler flue gas recirculation device according to claim 1, characterized in that: The first inlet pipe (3) and the second inlet pipe (4) of the gas inlet pipe are respectively provided with a first inlet valve and a second inlet valve.

7. The boiler flue gas recirculation device according to claim 1, characterized in that: It also includes a control panel, which connects and controls the first intake valve, the second intake valve, the neutralization valve, and the air pump.

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