Waste heat recycling device for thermal power plant boiler

Abstract

The utility model provides a waste heat recycling device for a thermal power plant boiler, and relates to the technical field of methane telemeters, the waste heat recycling device comprises a first cylinder, the surface of the first cylinder, close to the top and the bottom, is sleeved and fixedly connected with circular ring discs, and a second cylinder is fixedly connected between the two circular ring discs; and the positions, close to the top and the bottom, of the surface of the second cylinder are fixedly connected with annular plates in a sleeving manner. Smoke passes through the space between the first cylinder and the second cylinder through the smoke inlet and outlet pipe, so that the effect of heating water in the first spiral pipe and the second spiral pipe by heat can be achieved, and the effect of facilitating the heat in the smoke can be achieved; the other ends of the first water inlet and outlet pipe, the smoke inlet and outlet pipe and the second water inlet and outlet pipe are communicated with another device, the effect of heating water in the first spiral pipe and the second spiral pipe again can be achieved, and therefore the effect of improving the preheating recycling rate can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of methane telemeters, in particular to a waste heat recovery and reuse device for a boiler in a thermal power plant. Background Art

[0002] A thermal power plant boiler is a device that uses fuels such as coal, oil or natural gas to burn and generate high-temperature and high-pressure steam. It is one of the core equipment in a thermal power plant, used to convert the chemical energy of the fuel into thermal energy, and then generate electricity through a steam turbine.

[0003] When the boiler is in use, its tail gas contains some waste heat. The existing waste heat recovery devices recycle the waste heat of the boiler's tail gas. However, these devices have low heat recovery during the waste heat recovery and reuse process, which easily causes waste heat waste. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that in the prior art, waste heat recovery devices are used to recover and utilize the waste heat of the tail gas of the boiler. These devices have low heat recovery during the waste heat recovery and reuse process, which easily causes waste heat waste. A waste heat recovery and reuse device for a thermal power plant boiler is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a waste heat recovery and reuse device for a thermal power plant boiler, comprising a first cylinder, an annular disk is sleeved and fixedly connected on the surface of the first cylinder near the top and the bottom, a second cylinder is fixedly connected between the two annular disks, an annular plate is sleeved and fixedly connected on the surface of the second cylinder near the top and the bottom, a third cylinder is fixedly connected between the two annular plates, a round cover is installed on the top and the bottom of the first cylinder, a round cavity is opened inside the round cover, a first spiral tube is arranged inside the first cylinder, both ends of the first spiral tube are communicated with the circular cavity, a second spiral tube is sleeved on the surface of the second cylinder, an annular cavity is opened inside the ring plate, and both ends of the second spiral tube are communicated with the annular cavity.

[0006] Preferably, an H-shaped plate is sleeved and fixedly connected to the surface of the third cylinder, and support columns are fixedly connected to the bottom and near the four ends of the H-shaped plate, and support legs are fixedly connected to the bottom of the support columns.

[0007] Preferably, the inner wall of the first cylinder and near both ends are provided with spiral patterns, the surface of the round cover is provided with spiral patterns, and the spiral patterns on the inner wall of the first cylinder are matched with the spiral patterns on the surface of the round cover.

[0008] Preferably, the four ends of the H-shaped plate are rounded, and the shape of the supporting legs is trapezoidal.

[0009] Preferably, a first water inlet and outlet pipe is fixed on the surface of the circular cover, the first water inlet and outlet pipe is connected to the circular cavity, and a second water inlet and outlet pipe is fixed on the surface of the ring plate, the second water inlet and outlet pipe is connected to the ring cavity.

[0010] Preferably, the surfaces of the ring plates are fixedly connected with smoke inlet and outlet pipes, and the smoke inlet and outlet pipes are interconnected with the first cylinder and the second cylinder.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, the smoke passes through the first cylinder and the second cylinder through the smoke inlet and outlet pipe, which can heat the water in the first spiral tube and the second spiral tube, thereby achieving the effect of benefiting the heat in the smoke.

[0013] 2. In the utility model, by connecting the other ends of the first water inlet and outlet pipe, the smoke inlet and outlet pipe and the second water inlet and outlet pipe to another device, the water in the first spiral tube and the second spiral tube can be heated again, thereby achieving the effect of improving the preheating recovery rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional diagram of the overall structure of a waste heat recovery and reuse device for a thermal power plant boiler;

[0015] Figure 2 The utility model provides a sectional view of the overall structure of a waste heat recovery and reuse device for a thermal power plant boiler;

[0016] Figure 3 The utility model provides an overall structural plan view of a waste heat recovery and reuse device for a thermal power plant boiler.

[0017] Legend: 1. First cylinder; 2. Circular ring disk; 3. Second cylinder; 4. Circular plate; 5. Third cylinder; 6. H-shaped plate; 7. Support column; 8. Support leg; 9. First spiral tube; 10. Round cover; 11. Round cavity; 12. Second spiral tube; 13. Circular cavity; 14. First water inlet and outlet pipe; 15. Smoke inlet and outlet pipe; 16. Second water inlet and outlet pipe. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] Embodiment 1, as Figure 1-3 As shown, the utility model provides a waste heat recovery and reuse device for a thermal power plant boiler, comprising a first cylinder 1, an annular disk 2 is sleeved and fixedly connected on the surface of the first cylinder 1 and near the top and the bottom, a second cylinder 3 is fixedly connected between the two annular disks 2, an annular plate 4 is sleeved and fixedly connected on the surface of the second cylinder 3 and near the top and the bottom, a third cylinder 5 is fixedly connected between the two annular plates 4, a round cover 10 is installed on the top and the bottom of the first cylinder 1, a round cavity 11 is opened inside the round cover 10, a first spiral tube 9 is arranged inside the first cylinder 1, both ends of the first spiral tube 9 are communicated with the circular cavity 11, a second spiral tube 12 is sleeved on the surface of the second cylinder 3, an annular cavity 13 is opened inside the annular plate 4, and both ends of the second spiral tube 12 are communicated with the annular cavity 13.

[0021] The effect achieved by the entire embodiment 1 is that an annular disk 2 is sleeved and fixedly connected through the surface of the first cylinder 1 and near the top and bottom, and a second cylinder 3 is fixedly connected between the two annular disks 2, which can play an effect of allowing smoke to pass between the first cylinder 1 and the second cylinder 3, an annular plate 4 is sleeved and fixedly connected through the surface of the second cylinder 3 and near the top and bottom, and a third cylinder 5 is fixedly connected between the two annular plates 4, a round cover 10 is installed on the top and bottom of the first cylinder 1, a round cavity 11 is opened inside the round cover 10, a first spiral tube 9 is arranged inside the first cylinder 1, and both ends of the first spiral tube 9 are communicated with the circular cavity 11, a second spiral tube 12 is sleeved on the surface of the second cylinder 3, an annular cavity 13 is opened inside the annular plate 4, and both ends of the second spiral tube 12 are communicated with the annular cavity 13, which can play an effect of allowing the smoke between the first cylinder 1 and the second cylinder 3 to heat the water inside the first spiral tube 9 and the second spiral tube 12.

[0022] Embodiment 2, as Figure 1-3As shown, an H-shaped plate 6 is sleeved and fixedly connected to the surface of the third cylinder 5, and a support column 7 is fixedly connected to the bottom and near the four ends of the H-shaped plate 6, and a support leg 8 is fixedly connected to the bottom of the support column 7; a spiral pattern is provided on the inner wall of the first cylinder 1 and near the two ends, and a spiral pattern is provided on the surface of the round cover 10, and the spiral pattern on the inner wall of the first cylinder 1 is matched with the spiral pattern on the surface of the round cover 10; the four ends of the H-shaped plate 6 are rounded, and the shape of the support leg 8 is trapezoidal; a first inlet and outlet water pipe 14 is fixed to the surface of the round cover 10, and the first inlet and outlet water pipe 14 is interconnected with the circular cavity 11, and a second inlet and outlet water pipe 16 is fixed to the surface of the ring plate 4, and the second inlet and outlet water pipe 16 is interconnected with the ring cavity 13; a smoke inlet and outlet pipe 15 is fixedly connected to the surface of the ring plate 4, and the smoke inlet and outlet pipe 15 is interconnected with the first cylinder 1 and the second cylinder 3.

[0023] The effect achieved by the entire embodiment 2 is that an H-shaped plate 6 is sleeved and fixedly connected to the surface of the third cylinder 5, and support columns 7 are fixedly connected to the bottom and near the four ends of the H-shaped plate 6, and support legs 8 are fixedly connected to the bottom of the support columns 7, which can play the effect of supporting the device; spiral patterns are opened on the inner wall of the first cylinder 1 and near both ends, and spiral patterns are opened on the surface of the round cover 10, and the spiral patterns on the inner wall of the first cylinder 1 are adapted to the spiral patterns on the surface of the round cover 10, which can play the effect of facilitating the installation of the round cover 10; the four ends of the H-shaped plate 6 are rounded, and the shape of the support legs 8 is a ladder shape, which can prevent the sharp corners of the H-shaped plate 6 from hurting people; a first water inlet and outlet pipe 14 is fixed on the surface of the round cover 10, and the first water inlet and outlet pipe 14 is connected to the circular cavity 11; a second water inlet and outlet pipe 16 is fixed on the surface of the ring plate 4, and the second water inlet and outlet pipe 16 is connected to the annular cavity 13, which can play the effect of pouring water into the circular cavity 11 and the inside of the annular cavity 13; a smoke inlet and outlet pipe 15 is fixedly connected to the surface of the ring plate 4, and the smoke inlet and outlet pipe 15 is connected to the first cylinder 1 and the second cylinder 3, which can play the effect of pouring smoke into the space between the first cylinder 1 and the second cylinder 3.

[0024] Working principle: water is poured into the circular cavity 11 and the annular cavity 13 through one of the first water inlet and outlet pipes 14 and the second water inlet and outlet pipes 16, and can enter the first spiral tube 9 and the second spiral tube 12 at the same time. At this time, the smoke is passed through the first cylinder 1 and the second cylinder 3 through the smoke inlet and outlet pipe 15, which can heat the water in the first spiral tube 9 and the second spiral tube 12, thereby achieving the effect of benefiting the heat in the smoke. At the same time, the other ends of the first water inlet and outlet pipe 14, the smoke inlet and outlet pipe 15 and the second water inlet and outlet pipe 16 are connected to another device, which can heat the water in the first spiral tube 9 and the second spiral tube 12 again, thereby achieving the effect of improving the preheating recovery rate.

[0025] The wiring diagram of the first spiral tube 9 and the second spiral tube 12 in the present invention is common knowledge in the art, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the first spiral tube 9 and the second spiral tube 12 are not explained in detail.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A waste heat recovery and reuse device for a thermal power plant boiler, comprising a first cylinder (1), characterized in that: An annular disk (2) is sleeved and fixedly connected on the surface of the first cylinder (1) near the top and the bottom, a second cylinder (3) is fixedly connected between the two annular disks (2), an annular plate (4) is sleeved and fixedly connected on the surface of the second cylinder (3) near the top and the bottom, a third cylinder (5) is fixedly connected between the two annular plates (4), a round cover (10) is installed on the top and the bottom of the first cylinder (1), a round cavity (11) is provided inside the round cover (10), a first spiral tube (9) is provided inside the first cylinder (1), both ends of the first spiral tube (9) are in communication with the circular cavity (11), a second spiral tube (12) is sleeved on the surface of the second cylinder (3), an annular cavity (13) is provided inside the annular plate (4), both ends of the second spiral tube (12) are in communication with the annular cavity (13).

2. The waste heat recovery and reuse device for a thermal power plant boiler according to claim 1, characterized in that: An H-shaped plate (6) is sleeved and fixedly connected to the surface of the third cylinder (5), support columns (7) are fixedly connected to the bottom and near the four ends of the H-shaped plate (6), and support legs (8) are fixedly connected to the bottoms of the support columns (7).

3. The waste heat recovery and reuse device for a thermal power plant boiler according to claim 1, characterized in that: The inner wall of the first cylinder (1) and near both ends are provided with spiral patterns, and the surface of the round cover (10) is provided with spiral patterns, and the spiral patterns on the inner wall of the first cylinder (1) are matched with the spiral patterns on the surface of the round cover (10).

4. The waste heat recovery and reuse device for a thermal power plant boiler according to claim 2, characterized in that: The four ends of the H-shaped plate (6) are all rounded, and the support leg (8) is in the shape of a trapezoid.

5. The waste heat recovery and reuse device for a thermal power plant boiler according to claim 1, characterized in that: A first water inlet and outlet pipe (14) is fixed on the surface of the circular cover (10), and the first water inlet and outlet pipe (14) is in communication with the circular cavity (11). A second water inlet and outlet pipe (16) is fixed on the surface of the annular plate (4), and the second water inlet and outlet pipe (16) is in communication with the annular cavity (13).

6. The waste heat recovery and reuse device for a thermal power plant boiler according to claim 1, characterized in that: The surfaces of the ring plates (4) are fixedly connected with smoke inlet and outlet pipes (15), and the smoke inlet and outlet pipes (15) are interconnected with the first cylinder (1) and the second cylinder (3).

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