Waste heat recycling device for thermal power plant

Abstract

The utility model relates to the technical field of waste heat recycling, and discloses a waste heat recycling device for a thermal power plant, which comprises a base, the top side of the base is fixedly connected with two heating chambers, the front ends of the heating chambers are fixedly connected with a primary filtering chamber, and the rear ends of the heating chambers are fixedly connected with a secondary filtering chamber. Cover plates are arranged on the sides, away from each other, of the primary filtering chamber and the secondary filtering chamber, connecting pipes are fixedly connected to the outer walls of the cover plates, valves are arranged on the inner walls of the connecting pipes, and heating assemblies are arranged on the inner wall of the heating chamber and used for recycling waste heat. According to the utility model, the limiting shaft and the spring structure are adopted, so that the filter plate and the activated carbon filter layer can be quickly disassembled and replaced, the maintenance efficiency is improved, and the maintenance cost is reduced. Meanwhile, by reasonably designing a waste gas flowing path, utilizing waste heat to heat water in the chamber and controlling waste gas to flow to different heating chambers through valves, continuous heating is achieved, shutdown is avoided, and energy is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat recycling technical field especially relates to a waste heat recycling device for thermal power plant. BACKGROUND

[0002] Waste heat recovery can not only reduce the energy consumption of thermal power plant, improve energy utilization, but also provide additional heat support for surrounding industrial production, residential life, etc., has remarkable economic benefit and social benefit. The existing waste heat recycling device for thermal power plant still has many defects. In terms of filter system, the installation structure of filter plate and activated carbon filter layer in traditional device is complicated, usually adopts a large number of bolt fastening or complex slot engagement mode, and the efficiency is low, and the exhaust gas usually flows to fixed heating chamber singly, so that the water in heating chamber needs to be replaced when stopping, resulting in a large amount of waste heat being wasted, and the waste heat recovery efficiency is low, and to this end, the waste heat recycling device for thermal power plant is provided for the technical problem. SUMMARY

[0003] The utility model discloses a waste heat recycling device for thermal power plant, which can quickly disassemble and replace the filter plate and activated carbon filter layer by adopting the limiting shaft and spring structure, improve the maintenance efficiency and reduce the maintenance cost. At the same time, by reasonably designing the exhaust gas flow path, the water in the waste heat heating chamber is heated, and the exhaust gas flow direction is controlled by the valve to different heating chambers, so that continuous heating is realized, stopping is avoided, and energy is saved.

[0004] To achieve the above object, the utility model provides the following technical scheme.

[0005] A waste heat recycling device for thermal power plant, comprising a base, the top side of the base is fixedly connected with two heating chambers, the front end of the heating chamber is fixedly connected with a preliminary filter chamber, the rear end of the heating chamber is fixedly connected with a secondary filter chamber, the preliminary filter chamber and the secondary filter chamber are provided with a cover plate on the side away from each other, the outer wall of the cover plate is fixedly connected with a connecting pipe, the inner wall of the connecting pipe is provided with a valve, the inner wall of the heating chamber is provided with a heating assembly for recycling waste heat, the inner wall of the preliminary filter chamber and the secondary filter chamber is fixedly connected with a mounting ring, the inside of the preliminary filter chamber is provided with a filter plate, the inside of the secondary filter chamber is provided with an activated carbon filter layer, and the filter plate and the activated carbon filter layer are connected through a clamping assembly and a mounting ring for fixing the filter plate and the activated carbon filter layer.

[0006] Further, the clamping assembly comprises a mounting block fixedly connected to the outer wall of the filter plate and the activated carbon filter layer, the mounting block is slidably connected with a limiting shaft in the inside, the inner wall of the mounting block is provided with a spring at the middle end, and the mounting block is arranged in the inner wall of the mounting ring.

[0007] Further, the outer wall of the limiting shaft is fixedly connected with a pushing piece.

[0008] Further, the heating assembly comprises a heating inner shell fixedly connected to the inner wall of the heating chamber, and a heating pipe is arranged in the heating inner shell.

[0009] Further, a cavity is arranged between the heating chamber and the heating inner shell, so as to store water to be heated.

[0010] Further, the outer wall of the heating chamber is provided with a water inlet and a water outlet.

[0011] Further, the outer wall of the filter plate is provided with a plurality of filter holes.

[0012] The utility model has the advantages of the following beneficial effects:

[0013] 1. In the utility model, the unique limiting shaft and spring structure can quickly disassemble and replace the filter plate and the activated carbon filter layer, avoid the installation structure of the filter plate and the activated carbon filter layer being too complex to affect the replacement efficiency, improve the maintenance efficiency, and reduce the maintenance cost of the equipment.

[0014] 2. In the utility model, the flow path of the waste gas is reasonably designed, the waste heat of the waste gas is utilized to heat the water in the heating chamber, the waste gas flow is controlled by the valve to flow into different heating chambers, continuous heating is realized, shutdown is avoided, the waste heat recovery efficiency is significantly improved, and energy is saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 A perspective view of a waste heat recovery and recycling device for a thermal power plant is provided for the utility model;

[0016] Fig. 2 A heating chamber internal structure schematic view of a waste heat recovery and recycling device for a thermal power plant is provided for the utility model;

[0017] Fig. 3 An installation ring structure schematic view of a waste heat recovery and recycling device for a thermal power plant is provided for the utility model.

[0018] LEGEND:

[0019] 1. Base; 2. Heating chamber; 3. Primary filter chamber; 4. Secondary filter chamber; 5. Connection pipe; 6. Valve; 7. Cover plate; 8. Installation ring; 9. Filter plate; 10. Heating inner shell; 11. Activated carbon filter layer; 12. Heating pipe; 13. Mounting block; 14. Limiting shaft; 15. Spring. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figs. 1-3 The utility model provides an embodiment: a kind of waste heat recovery and reuse device for thermal power plant, including base 1, the top side of base 1 is fixedly connected with two heating chamber 2, the front end of heating chamber 2 is fixedly connected with preliminary filter chamber 3, the rear end of heating chamber 2 is fixedly connected with secondary filter chamber 4, preliminary filter chamber 3 and secondary filter chamber 4 are apart one side and are provided with cover plate 7, the outer wall of cover plate 7 is fixedly connected with connecting pipe 5, the inner wall of connecting pipe 5 is provided with valve 6, heating inner shell 10 is fixedly connected in the inner wall of heating chamber 2, the inside of heating inner shell 10 is provided with heating pipe 12, to be used to carry out recycling for waste heat, the inner wall of preliminary filter chamber 3 and secondary filter chamber 4 is fixedly connected with mounting ring 8, the inside of preliminary filter chamber 3 is provided with filter plate 9, the inside of secondary filter chamber 4 is provided with activated carbon filter layer 11, mounting block 13 is fixedly connected in the outer wall of filter plate 9 and activated carbon filter layer 11, limit shaft 14 is slidably connected in the inside of mounting block 13, spring 15 is arranged in the inner wall middle end of mounting block 13, mounting block 13 is arranged in the inner wall of mounting ring 8, to be used to the fixation of filter plate 9 and activated carbon filter layer 11;

[0022] Specifically, the waste gas generated by the thermal power plant is introduced through the connecting pipe 5 on the front side. The waste gas first enters the device, and the larger particles therein are filtered by the filter plate 9. Subsequently, the waste gas heats the heating inner shell 10 through the heating pipe 12, thereby warming the water in the heating chamber 2, so as to realize the effective utilization of the waste heat of the waste gas. The waste gas continues to be filtered by the activated carbon filter layer 11, and finally is discharged from the device. When it is necessary to replace the filter plate 9 and the activated carbon filter layer 11, the cover plate 7 can be opened, and the filter plate 9 and the activated carbon filter layer 11 can be disassembled from the inner wall of the mounting ring 8 by pressing the limit shaft 14 to compress the spring 15. When replacing, the mounting block 13 of the new filter plate 9 and the activated carbon filter layer 11 is pressed into the inner wall of the mounting ring 8, and the filter plate 9 and the activated carbon filter layer 11 are firmly clamped in the inner wall of the mounting ring 8 by using the compression force of the limit shaft 14 on the spring 15, so as to realize quick replacement and avoid the influence of complex mounting structure on the replacement efficiency. In addition, when the water in one heating chamber 2 is heated, the opening and closing of the valve 6 can be controlled to guide the waste gas to flow into other heating chambers 2, so as to realize the continuous recycling of waste heat and avoid the reduction of waste heat recycling efficiency due to the replacement of water.

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figs. 1-3The outer wall of the limiting shaft 14 is fixedly connected with a pushing piece, a cavity is arranged between the heating chamber 2 and the heating inner shell 10, and is used for storing water to be heated, the outer wall of the heating chamber 2 is provided with a water inlet and a water outlet, and the outer wall of the filter plate 9 is provided with a plurality of filter holes;

[0024] Specifically, the pushing piece can better separate the limiting shaft 14 and the mounting ring 8, the water inlet and the water outlet can better replace the water in the heating chamber 2, and the filter holes can filter larger particles in the waste gas.

[0025] Working principle: the waste gas generated by the thermal power plant is introduced through the front connecting pipe 5, the particles in the waste gas are first filtered by the filter plate 9, and then the heating pipe 12 heats the heating inner shell 10 to heat the water in the heating chamber 2, so that the waste heat of the waste gas is utilized, and then the waste gas is filtered by the activated carbon filter layer 11 and then discharged, when the filter plate 9 and the activated carbon filter layer 11 need to be disassembled and replaced, the cover plate 7 is opened, the spring 15 is compressed by pushing the limiting shaft 14, the filter plate 9 and the activated carbon filter layer 11 are disassembled from the inner wall of the mounting ring 8, and then the new filter plate 9 and the activated carbon filter layer 11 are pressed into the inner wall of the mounting ring 8 through the mounting block 13, the spring 15 is compressed by the limiting shaft 14 to realize that the activated carbon filter layer 11 and the filter plate 9 are clamped in the inner wall of the mounting ring 8, so that the filter plate 9 and the activated carbon filter layer 11 are replaced, when the water in one of the heating chambers 2 is heated, the corresponding valve 6 is opened and closed to control the waste gas to flow into different heating chambers 2 to recycle and utilize the waste heat of the thermal power plant, and the low efficiency of recycling and utilizing the waste heat caused by shutdown is avoided.

[0026] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A waste heat recovery and reuse device for thermal power plants, characterized in that, Includes a base (1), on the top side of which two heating chambers (2) are fixedly connected. A preliminary filtration chamber (3) is fixedly connected to the front end of each heating chamber (2), and a secondary filtration chamber (4) is fixedly connected to the rear end of each heating chamber (2). A cover plate (7) is provided on the opposite side of each of the preliminary filtration chamber (3) and the secondary filtration chamber (4). A connecting pipe (5) is fixedly connected to the outer wall of the cover plate (7), and a valve (6) is provided on the inner wall of the connecting pipe (5). The heating chamber (2)... The inner wall is equipped with a heating component for recovering waste heat. The inner walls of the primary filtration chamber (3) and the secondary filtration chamber (4) are fixedly connected with mounting rings (8). The primary filtration chamber (3) is equipped with a filter plate (9), and the secondary filtration chamber (4) is equipped with an activated carbon filter layer (11). The filter plate (9) and the activated carbon filter layer (11) are connected by a snap-fit ​​component and the mounting ring (8) for fixing the filter plate (9) and the activated carbon filter layer (11).

2. The waste heat recovery and reuse device for thermal power plants according to claim 1, characterized in that: The locking assembly includes a mounting block (13) fixedly connected to the outer wall of the filter plate (9) and the activated carbon filter layer (11). The mounting block (13) has a limit shaft (14) slidably connected inside. A spring (15) is provided at the middle of the inner wall of the mounting block (13). The mounting block (13) is located on the inner wall of the mounting ring (8).

3. The waste heat recovery and reuse device for thermal power plants according to claim 2, characterized in that: A lever is fixedly connected to the outer wall of the limiting shaft (14).

4. The waste heat recovery and reuse device for thermal power plants according to claim 1, characterized in that: The heating assembly includes a heating inner shell (10) fixedly connected to the inner wall of the heating chamber (2), and a heating tube (12) is provided inside the heating inner shell (10).

5. A waste heat recovery and reuse device for thermal power plants according to claim 1, characterized in that: A cavity is provided between the heating chamber (2) and the heating inner shell (10) for storing water that needs to be heated.

6. The waste heat recovery and reuse device for thermal power plants according to claim 1, characterized in that: The outer wall of the heating chamber (2) is provided with a water inlet and a water outlet.

7. A waste heat recovery and reuse device for thermal power plants according to claim 1, characterized in that: The outer wall of the filter plate (9) is provided with multiple filter holes.

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