Tail gas purification device for thermal power generation

Abstract

The utility model provides a thermal power generation tail gas purification device and belongs to the technical field of thermal power generation. Comprising a fixing frame, a first filtering assembly fixedly installed on the inner surface of the fixing frame, an air inlet communicating with the side surface of the first filtering assembly, a second filtering assembly fixedly installed at the end of the first filtering assembly, a photovoltaic assembly fixedly connected to the side surface of the second filtering assembly and a cover plate clamped to the surface of the second filtering assembly. The air outlet is communicated with the side surface of the second filtering assembly. Through the multi-stage filtering structure and the photovoltaic design, efficient purification and energy recycling of thermal power generation tail gas are achieved, pollutants with different particle sizes can be treated in a staged mode through the synergistic effect of the first filtering assembly and the second filtering assembly, and the filtering efficiency and the structural strength are remarkably improved through the design of the filtering pipes with the reinforcing layers and the special coatings; the photovoltaic assembly converts light energy into electric energy to be supplied to the system for operation, and the observation opening and the detachable cover plate facilitate real-time monitoring and maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of thermal power generation technology, specifically relating to a thermal power generation exhaust gas purification device. Background Technology

[0002] The exhaust gas purification device for thermal power plants is an environmental protection equipment developed to address the waste gas treatment needs of industrial waste gas from coal-fired power plants and other similar facilities. Its core function is to achieve efficient treatment and resource recovery of exhaust gas through multi-stage purification technology. This device has been successfully applied to ultra-low emission retrofit projects in several coal-fired power plants, and actual measurements show that it can reduce PM2.5 emission concentrations to 5 mg / m³. 3 The removal rates of SOx and NOx reached over 95% and 85% respectively, demonstrating significant environmental and economic benefits.

[0003] Traditional purification systems mostly use a single filtration structure, which has limited effectiveness in treating complex pollutants and is prone to clogging; observation and maintenance are inconvenient, and real-time monitoring functions are lacking; energy consumption is high, and waste heat or solar energy from exhaust gas is not fully utilized; the structural strength of the filter components is insufficient, and they are prone to deformation and damage under long-term high-temperature environments; therefore, a thermal power plant exhaust gas purification device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a thermal power plant exhaust gas purification device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A thermal power plant exhaust gas purification device includes a fixed frame, a first filter assembly fixedly installed on the inner surface of the fixed frame, an air inlet communicating with the side surface of the first filter assembly, a second filter assembly fixedly installed at the end of the first filter assembly, a photovoltaic module fixedly connected to the side surface of the second filter assembly, a cover plate snapped onto the surface of the second filter assembly, and an air outlet communicating with the side surface of the second filter assembly.

[0007] As a preferred embodiment of the present invention, the first filter assembly includes a connecting shell, an observation port fixedly installed on the side surface of the connecting shell, a connecting pipe communicating with the bottom of the connecting shell, and a fan adapted to be installed at the bottom of the connecting pipe.

[0008] As a preferred embodiment of the present invention, the second filter assembly includes an operation box and a filter tube fixedly installed inside the operation box.

[0009] As a preferred embodiment of the present invention, the filter tube includes a shell, a reinforcing layer fixedly connected to the inner surface of the shell, a coating sprayed on the inner wall of the reinforcing layer, and a channel formed in the center of the shell.

[0010] As a preferred embodiment of the present invention, the photovoltaic module includes a mounting frame, a photovoltaic panel snapped onto the surface of the mounting frame, and a mounting rod fixedly mounted on the side wall of the mounting frame.

[0011] As a preferred embodiment of the present invention, the cover plate includes a connecting frame, a baffle plate snapped onto the surface of the connecting frame, and a buckle fixedly installed on the side surface of the baffle plate.

[0012] As a preferred embodiment of this utility model, the cover plate further includes a handle fixedly connected to the side wall of the baffle, and an air pipe disposed in the inner cavity of the operation box, the air pipe being connected to the air outlet.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: through the multi-stage filtration structure and photovoltaic design, efficient purification and energy recovery of exhaust gas from thermal power generation are achieved; the synergistic effect of the first and second filter components can classify and treat pollutants of different particle sizes; the design of the filter tube with the reinforcing layer and special coating significantly improves the filtration efficiency and structural strength; the photovoltaic components convert light energy into electrical energy to power the system; the observation port and detachable cover facilitate real-time monitoring and maintenance; the overall device has a compact structure; the cooperation between the fan and the air pipe ensures stable airflow; the snap-fit ​​connection design simplifies the installation process; and while ensuring the purification effect, it achieves energy self-sufficiency and long-term stable operation of the system. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional side view structural diagram of the present invention;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 This is a cross-sectional view of the filter tube of this utility model.

[0019] In the diagram: 101, mounting bracket; 102, first filter assembly; 103, air inlet; 104, second filter assembly; 105, photovoltaic module; 106, cover plate; 107, air outlet; 102a, connecting shell; 102b, observation port; 102c, connecting pipe; 102d, fan; 104a, control box; 104b, filter pipe; 104b-1, outer shell; 104b-2, reinforcing layer; 104b-3, coating; 104b-4, channel; 105a, mounting bracket; 105b, photovoltaic panel; 105c, mounting rod; 106a, connecting bracket; 106b, baffle; 106c, buckle; 106d, handle; 106e, air pipe. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Example

[0024] Reference Figure 1-4 This is an embodiment of the present invention, which provides a thermal power plant exhaust gas purification device, comprising:

[0025] The system includes a mounting bracket 101, a first filter assembly 102 fixedly mounted on the inner surface of the mounting bracket 101, an air inlet 103 connected to the side surface of the first filter assembly 102, a second filter assembly 104 fixedly mounted at the end of the first filter assembly 102, a photovoltaic module 105 fixedly connected to the side surface of the second filter assembly 104, a cover plate 106 snapped onto the surface of the second filter assembly 104, and an air outlet 107 connected to the side surface of the second filter assembly 104.

[0026] The first filter assembly 102 includes a connecting shell 102a, an observation port 102b fixedly installed on the side surface of the connecting shell 102a, a connecting pipe 102c connected to the bottom of the connecting shell 102a, and a fan 102d adapted to be installed at the bottom of the connecting pipe 102c.

[0027] The second filter assembly 104 includes an operation box 104a and a filter tube 104b fixedly installed inside the operation box 104a.

[0028] Specifically, exhaust gas enters the first filter assembly 102 through the air inlet 103, and under the action of the fan 102d, it is transported to the connecting shell 102a through the connecting pipe 102c for primary filtration. The observation port 102b can monitor the filtration status in real time. The gas after preliminary purification enters the operation box 104a of the second filter assembly 104, and undergoes deep purification through the multi-layer filter pipe 104b. The reinforcing layer 104b-2 and the special coating 104b-3 effectively trap fine pollutants. The purified clean gas is discharged from the air outlet 107 through the air pipe 106e. At the same time, the photovoltaic module 105 converts light energy into electrical energy to provide auxiliary power for the fan 102d and other equipment. The cover plate 106 is designed with a snap-on mechanism 106c for easy and quick opening and maintenance.

[0029] The filter tube 104b includes a housing 104b-1, a reinforcing layer 104b-2 fixedly connected to the inner surface of the housing 104b-1, a coating 104b-3 sprayed on the inner wall of the reinforcing layer 104b-2, and a channel 104b-4 opened in the center of the housing 104b-1.

[0030] The photovoltaic module 105 includes a mounting frame 105a, a photovoltaic panel 105b snapped onto the surface of the mounting frame 105a, and a mounting rod 105c fixedly mounted on the side wall of the mounting frame 105a.

[0031] The cover plate 106 includes a connecting frame 106a, a baffle 106b snapped onto the surface of the connecting frame 106a, and a buckle 106c fixedly installed on the side surface of the baffle 106b.

[0032] The cover plate 106 also includes a handle 106d fixedly connected to the side wall of the baffle 106b, and an air pipe 106e disposed in the inner cavity of the operation box 104a, the air pipe 106e being connected to the air outlet 107.

[0033] It should be noted that the exhaust gas from the power generation enters the connecting shell 102a of the first filter assembly 102 through the air inlet 103 for primary filtration, and the observation port 102b can monitor the filtration status in real time. After being pressurized by the fan 102d, the exhaust gas enters the filter tube 104b in the operation box 104a of the second filter assembly 104 through the connecting pipe 102c. When the gas flows along the central channel 104b-4 of the outer shell 104b-1, it passes through the structural support of the reinforcing layer 104b-2 and the catalytic reaction of the special coating 104b-3 in sequence, achieving deep purification of pollutants. The purified gas is discharged from the air outlet 107 through the air pipe 106e. At the same time, the photovoltaic panel 105b converts light energy into electrical energy to supply the system operation. When maintenance is required, the baffle 106b can be pulled by the handle 106d, and the cover 106 can be quickly opened for operation using the buckle 106c structure.

[0034] In operation, exhaust gas enters the system through inlet 103 and undergoes primary physical filtration in the first filter assembly 102. Then, driven by fan 102d, it enters the second filter assembly 104. In the second filter assembly 104, the exhaust gas passes through a filter tube 104b channel 104b-4 with a reinforcing layer 104b-2 and a special catalytic coating 104b-3, achieving deep purification through both physical interception and chemical catalysis. During purification, photovoltaic module 105 continuously converts light energy into electrical energy to maintain system operation. The purified gas is discharged from outlet 107 via gas pipe 106e, meeting emission standards. The entire system's operating status is visually monitored through observation port 102b, and a snap-fit ​​cover 106 design ensures convenient maintenance, thus achieving an organic combination of efficient exhaust gas purification, energy recovery and utilization, and stable system operation.

[0035] In summary, the first filter component 102 intercepts coarse particulate matter, while the reinforcing layer 104b-2 and the catalytic coating 104b-3 of the second filter component 104 work together to achieve deep treatment of fine pollutants, significantly improving purification efficiency. The photovoltaic module 105 converts light energy into electrical energy to power the system, reducing energy consumption costs. The observation port 102b is designed to facilitate real-time monitoring of the operating status, and the snap-on cover 106 structure simplifies the maintenance process. The fan 102d and the air pipe 106e work together to ensure stable airflow, achieving energy self-sufficiency and long-term stable operation while ensuring the exhaust gas purification effect.

[0036] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0037] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0038] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for purifying exhaust gas from thermal power plants, characterized in that: include, The frame (101), the first filter assembly (102) fixedly installed on the inner surface of the frame (101), the air inlet (103) connected to the side surface of the first filter assembly (102), the second filter assembly (104) fixedly installed at the end of the first filter assembly (102), the photovoltaic module (105) fixedly connected to the side surface of the second filter assembly (104), the cover plate (106) snapped onto the surface of the second filter assembly (104), and the air outlet (107) connected to the side surface of the second filter assembly (104).

2. The thermal power plant exhaust gas purification device according to claim 1, characterized in that: The first filter assembly (102) includes a connecting shell (102a), an observation port (102b) fixedly installed on the side surface of the connecting shell (102a), a connecting pipe (102c) connected to the bottom of the connecting shell (102a), and a fan (102d) adapted to be installed at the bottom of the connecting pipe (102c).

3. The thermal power plant exhaust gas purification device according to claim 2, characterized in that: The second filter assembly (104) includes an operation box (104a) and a filter tube (104b) fixedly installed inside the operation box (104a).

4. The thermal power plant exhaust gas purification device according to claim 3, characterized in that: The filter tube (104b) includes a housing (104b-1), a reinforcing layer (104b-2) fixedly connected to the inner surface of the housing (104b-1), a coating (104b-3) sprayed on the inner wall of the reinforcing layer (104b-2), and a channel (104b-4) opened in the center of the housing (104b-1).

5. The thermal power plant exhaust gas purification device according to claim 4, characterized in that: The photovoltaic module (105) includes a mounting frame (105a), a photovoltaic panel (105b) snapped onto the surface of the mounting frame (105a), and a mounting rod (105c) fixedly mounted on the side wall of the mounting frame (105a).

6. The thermal power plant exhaust gas purification device according to claim 5, characterized in that: The cover plate (106) includes a connecting frame (106a), a baffle (106b) snapped onto the surface of the connecting frame (106a), and a buckle (106c) fixedly installed on the side surface of the baffle (106b).

7. The thermal power plant exhaust gas purification device according to claim 6, characterized in that: The cover plate (106) also includes a handle (106d) fixedly connected to the side wall of the baffle (106b) and an air pipe (106e) disposed in the inner cavity of the operation box (104a), the air pipe (106e) being connected to the air outlet (107).

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