Condensate neutralization device for gas-fired boilers

Abstract

The utility model discloses a condensate water neutralization treatment device of gas boiler, including processing jar no.

Description

Technical Field

[0001] This utility model relates to the field of condensate treatment technology, specifically to a condensate neutralization treatment device for gas-fired boilers. Background Technology

[0002] Boiler condensate neutralization is a treatment process for acidic condensate. Sulfur combustion in fuel produces sulfur oxides, which dissolve in the condensate to form an acidic corrosive medium, causing severe corrosion to the metal components of the boiler system. The core of neutralization is to add alkaline agents to raise the pH value of the condensate to a neutral or slightly alkaline range, thereby effectively inhibiting corrosion. This process significantly extends equipment life and ensures safe and economical system operation, making it an indispensable part of modern boiler water treatment, especially crucial for systems using high-sulfur fuels or condensate recovery systems.

[0003] Traditional passive neutralization structures typically employ fixed-bed packing, where the water flow path is random, easily creating a "channel effect." This results in some water flowing out before sufficient contact and reaction, leading to low packing utilization and uneven neutralization efficiency. Furthermore, static packing beds rely on diffusion contact, and the reaction rate is limited by the passive diffusion process. For scenarios with fluctuating acidic loads or requiring rapid mixing, the adjustment capacity and dynamic mixing effect are insufficient, potentially affecting the stability of the effluent pH. In summary, these structures have limitations and room for improvement. Utility Model Content

[0004] This invention aims to solve the aforementioned technical problems of low packing utilization and uneven neutralization efficiency in condensate treatment, and provides a condensate neutralization treatment device for a gas-fired boiler.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a condensate neutralization treatment device for a gas-fired boiler, including a treatment tank one and a treatment tank two; the treatment tank one is provided with an inlet pipe off-center, the bottom of the treatment tank one is provided with a transfer pipe, and the end of the transfer pipe away from the treatment tank one extends into the upper part of the treatment tank two; the bottom surface of the treatment tank two is provided with an outlet pipe;

[0006] The processing tank is equipped with a primary neutralization structure, which includes several cross-arranged packing plates, all of which are inclined downwards from the outside to the inside.

[0007] The second treatment tank is equipped with a two-stage neutralization structure, which includes a plurality of packing plates rotatably disposed within the second treatment tank.

[0008] Furthermore, a valve is provided on the inlet pipe; a pump is connected to the transfer pipe.

[0009] Furthermore, each of the packing plates is provided with a number of strip grooves.

[0010] Furthermore, a drive motor is provided at the middle of the upper part of the second processing tank, and the output end of the drive motor extends into the second processing tank and is provided with a column, the lower end of which is rotatably connected to the second processing tank.

[0011] Each of the two filler plates is provided with a limiting slide bar on the side near the column, and the outer side of the column is provided with several limiting slots along the circumferential direction to accommodate the limiting slide bars.

[0012] Furthermore, the transverse cross-section of both the limiting slide and the limiting slot is dovetail-shaped.

[0013] Furthermore, the second packing plate includes a rectangular frame, within which packing material is fixedly disposed.

[0014] Furthermore, the transfer pipe is located at the upper end of the second processing tank and near the left side; the liquid outlet pipe is located at the lower end of the second processing tank and near the right side.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. By using the cross-shaped and inclined guide packing plate structure in the treatment tank, the water flow is forcibly guided and dispersed, ensuring that the condensate and neutralizing packing achieve higher coverage and sequential contact. This fundamentally solves the problems of water flow short-circuiting and local passivation of packing in traditional packed beds, thus maximizing the utilization of the neutralization capacity of the packing.

[0017] 2. The rotatable packing plate inside treatment tank 2 agitates the water flow, allowing the condensate and packing to mix thoroughly in a dynamic manner. This design significantly enhances mass transfer efficiency, enabling rapid response to fluctuations in water quality and flow rate, ensuring that acidic substances are quickly and thoroughly neutralized, thereby significantly improving the stability of the effluent pH value. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the condensate neutralization treatment device for the gas-fired boiler of this utility model.

[0019] Figure 2 This is a cross-sectional structural diagram of the treatment tank of the condensate neutralization treatment device for the gas-fired boiler of this utility model.

[0020] Figure 3 This is a schematic diagram of the packing plate structure of the condensate neutralization treatment device for the gas-fired boiler of this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the treatment tank 2 of the condensate neutralization treatment device for the gas-fired boiler of this utility model.

[0022] Figure 5 This is a schematic diagram of the column structure of the condensate neutralization treatment device for the gas-fired boiler of this utility model.

[0023] As shown in the figure: 1. Processing tank one, 2. Processing tank two, 3. Inlet pipe, 4. Transfer pipe, 5. Outlet pipe, 6. Packing plate one, 7. Strip groove, 8. Packing plate two, 9. Limiting slot, 10. Drive motor, 11. Column, 12. Limiting slide bar. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Example 1:

[0026] Combined with appendix Figure 1 A condensate neutralization treatment device for a gas-fired boiler includes a treatment tank 1 and a treatment tank 2. Treatment tank 1 has an inlet pipe 3 located off-center from its center, and a transfer pipe 4 located at its bottom. The end of the transfer pipe 4, furthest from treatment tank 1, extends into the upper part of treatment tank 2. Treatment tank 2 has an outlet pipe 5 located on its bottom surface. A valve is installed on the inlet pipe 3. A pump is connected to the transfer pipe 4. This structure provides a condensate treatment pathway, achieving efficient and thorough acid-base neutralization of the condensate through a two-stage neutralization process. The condensate first enters treatment tank 1 through the inlet pipe 3, then enters treatment tank 2 through the transfer pipe 4, and finally is discharged through the outlet pipe 5.

[0027] Combined with appendix Figure 1 , 2 3. The treatment tank 1 is equipped with a primary neutralization structure, which includes several cross-arranged packing plates 6, all of which slope downwards from the outside to the inside. This design prevents the condensate flowing in from the inlet pipe 3 from falling in a straight line, but forces it to flow in a tortuous manner along the surface of the cross-arranged packing plates 6, greatly increasing the contact area and contact time between the water and the surface of the packing plates. Several strip grooves 7 are arranged on each of the packing plates 6, which enhance the turbulence and contact effect on the one hand, and provide a small-area shortcut for the water flow on the other hand, avoiding water flow congestion and affecting the continuous neutralization effect.

[0028] Example 2:

[0029] Combined with appendix Figure 3 , 4 5. The second treatment tank 2 is equipped with a two-stage neutralization structure. Specifically, the two-stage neutralization structure includes several packing plates 2 8 that are rotatably installed inside the second treatment tank 2. Each packing plate 2 8 includes a rectangular frame, and packing is fixedly installed inside the frame to improve the structural strength of the packing and prevent deformation or damage during dynamic rotation. A drive motor 10 is installed at the middle of the upper part of the second treatment tank 2. The output end of the drive motor 10 extends into the second treatment tank 2 and is equipped with a column 11. The lower end of the column 11 is rotatably connected to the second treatment tank 2.

[0030] Based on the above, each packing plate 2 8 is provided with a limiting slide bar 12 on the side near the column 11, and the outer side of the column 11 is provided with several limiting slots 9 along the circumferential direction to accommodate the limiting slide bars 12. During installation, the limiting slide bars 12 of the packing plate 2 8 are aligned and inserted into the corresponding limiting slots 9, thereby achieving synchronous rotational connection between the packing plate 2 8 and the column 11, and enabling the replacement and maintenance of individual packing plates 2 8. To prevent the packing plate 2 8 from loosening during operation, the transverse cross-section of the limiting slide bars 12 and the limiting slots 9 is preferably designed as a dovetail shape.

[0031] To extend the path of water flow within the second treatment tank 2 and avoid short-circuiting, the transfer pipe 4 is preferably located at the upper end of the second treatment tank 2 and near the left side wall, while the outlet pipe 5 is preferably located at the lower end of the second treatment tank 2 and near the right side wall, forming a diagonal flow direction.

[0032] In this embodiment, the drive motor 10 is started, causing the column 11 and all the packing plates 8 connected to it to rotate slowly. The water flowing into the treatment tank 2 flows downward under the action of gravity, while being agitated by the rotating packing plates 8. This dynamic mixing makes the contact between the water flow and the neutralizing medium inside the packing plates 8 more intense and uniform, enabling deep and thorough neutralization of residual acidic substances. Finally, the completely neutralized water is discharged from the outlet pipe 5 at the bottom of the treatment tank 2 in a diagonal flow design, which can be directly discharged in compliance with standards or reused.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A condensate neutralization treatment device for a gas-fired boiler, characterized in that: It includes a processing tank 1 (1) and a processing tank 2 (2); the processing tank 1 (1) is provided with an inlet pipe (3) off the center, the processing tank 1 (1) is provided with a transfer pipe (4) at the bottom, and the end of the transfer pipe (4) away from the processing tank 1 (1) extends into the upper part of the processing tank 2 (2); the processing tank 2 (2) is provided with an outlet pipe (5) at the bottom. The processing tank (1) is provided with a primary neutralization structure, which includes several cross-arranged packing plates (6), all of which are inclined downward from the outside to the inside. The second treatment tank (2) is provided with a two-stage neutralization structure, which includes a number of packing plates (8) that are rotatably disposed inside the second treatment tank (2).

2. The condensate neutralization treatment device for a gas-fired boiler according to claim 1, characterized in that: The inlet pipe (3) is equipped with a valve; the transfer pipe (4) is connected to a pump.

3. The condensate neutralization treatment device for a gas-fired boiler according to claim 1, characterized in that: Several strip grooves (7) are arranged on each of the packing plates (6).

4. The condensate neutralization treatment device for a gas-fired boiler according to claim 1, characterized in that: The processing tank 2 (2) is provided with a drive motor (10) at the middle of its upper part. The output end of the drive motor (10) extends into the processing tank 2 (2) and is provided with a column (11). The lower end of the column (11) is rotatably connected to the processing tank 2 (2). Each of the two filler plates (8) is provided with a limiting slide bar (12) on the side near the column (11), and the outer side of the column (11) is provided with several limiting slots (9) that can accommodate the limiting slide bar (12) along the circumferential direction.

5. The condensate neutralization treatment device for a gas-fired boiler according to claim 4, characterized in that: The transverse cross-sections of the limiting slide (12) and the limiting slot (9) are both dovetail-shaped.

6. The condensate neutralization treatment device for a gas-fired boiler according to claim 1, characterized in that: The second packing plate (8) includes a rectangular frame, and packing is fixedly installed inside the frame.

7. The condensate neutralization treatment device for a gas-fired boiler according to claim 1, characterized in that: The transfer pipe (4) is located at the upper end of the second treatment tank (2) and near the left side; the outlet pipe (5) is located at the lower end of the second treatment tank (2) and near the right side.

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