CN219036676U

CN219036676U - Flue gas waste heat recycling device of thermal power plant

Info

Publication number: CN219036676U
Application number: CN202222802365.9U
Authority: CN
Inventors: 孙全福; 魏雅琪; 温璐亚
Original assignee: Shanghai Ziyi Intelligent System Engineering Co ltd
Current assignee: Shanghai Ziyi Intelligent System Engineering Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-05-16
Anticipated expiration: 2032-10-24

Abstract

The utility model discloses a flue gas waste heat recycling device of a thermal power plant, which is characterized in that multistage filtration is realized through a first filtering channel, a second filtering channel, a horizontal pipe, a splicing ring, an upper inclined filter plate and a lower filter plate, flue gas enters the first filtering channel and then passes through the upper inclined filter plate, filtered particles enter the second filtering channel under the drive of part of flue gas and are filtered through the lower filter plate in the horizontal pipe, and meanwhile, the horizontal pipe is made into a spliceable structure for facilitating later recovery of the filtered materials; the whole stroke of flue gas is increased through the spiral plate, heats the water in the water tank, in order to increase heating efficiency, the lateral wall of water tank adopts the material that heat conductivility is good, through pivot, flabellum, (mixing) shaft, spiral plate, thereby drives the pivot and rotates when the flue gas gets into the back and blows to the flabellum, thereby utilizes the (mixing) shaft to stir the water and guarantee the homogeneity of heating.

Description

Flue gas waste heat recycling device of thermal power plant

Technical Field

The utility model relates to the technical field of waste heat recovery, in particular to a flue gas waste heat recovery and utilization device of a thermal power plant.

Background

Thermal power generation is the most commonly used power generation mode at present, and is a power generation mode which utilizes heat energy generated by combustible materials during combustion and converts the heat energy into electric energy through a power generation device, smoke generated by combustion has higher temperature, and the smoke is generally discharged after being simply treated, so that energy is not fully utilized, and waste is caused.

The utility model patent with the application number of 201920359289.4 and the name of 'a flue gas waste heat recycling device of a thermal power plant' provides a device which comprises a chimney, wherein a gas collecting tube is arranged at the top of the chimney, an adsorption and filtration mechanism is arranged on the gas collecting tube, one end of the gas collecting tube, which is far away from the chimney, is connected to a water tank, the water tank comprises an inner storage layer, a heat preservation layer, a heat insulation layer and an outer protective layer, the gas collecting tube is spirally wound on the outer surface of the inner storage layer, and when a water body is heated, the gas collecting tube is wound on the water tank in a mode, so that the heating efficiency is low and the heating cannot be guaranteed uniformly.

Disclosure of Invention

In view of the problems existing in the prior art, the utility model discloses a flue gas waste heat recycling device of a thermal power plant, which adopts the technical scheme that the flue gas waste heat recycling device comprises an air inlet pipe, a first filtering channel, a second filtering channel, a filtering structure, a communication pipeline, an outer box, a water filling port, an air outlet, a water tank and a stirring structure, wherein the air inlet pipe is communicated with the first filtering channel, an exhaust pipeline for dye combustion is connected with the air inlet pipe, so that flue gas enters from the air inlet pipe, the second filtering channel is arranged below the first filtering channel, the filtering structure is arranged in the first filtering channel and the second filtering channel, the filtering structure is used for filtering particles in the flue gas, the right end of the first filtering channel is communicated with the outer box through the communication pipeline, the water filling port is arranged on the outer box, a valve is arranged in the water filling port, the water filling port is communicated with the water tank integrally formed in the outer box, the water outlet and the pipeline are arranged at the lower end of the rear side of the outer box, the water outlet is also provided with the valve, the water outlet can be opened after the water outlet valve is heated by utilizing the temperature of the flue gas of the water in the water tank, the water tank is the air outlet, the air outlet is arranged at the lower right end of the outer box, the filtering structure is also provided with the stirring structure, the stirring structure is arranged in the water tank, and the heating uniformity can be improved.

As a preferable technical scheme of the utility model, the filter structure comprises a horizontal pipe, a splicing ring, an upper inclined filter plate and a lower filter plate, wherein the upper inclined filter plate is fixed on the right side of the position of the first filter channel communicated with the second filter channel in order to realize primary filtration, particles filtered by the upper inclined filter plate enter the second filter channel along with a part of smoke under the inclined blocking, the bending parts at the left end and the right end of the second filter channel are fixedly connected with the first filter channel, and the horizontal pipe is connected between the horizontal ends of the bending parts and is fixed by the splicing ring.

As a preferable technical scheme of the utility model, the stirring structure comprises a rotating shaft, fan blades and a stirring shaft, wherein the rotating shaft is rotatably arranged at the center of the inner part of the outer box, the fan blades are uniformly distributed at the upper part of the rotating shaft, the positions of the fan blades are aligned to the communicating pipeline, the stirring shaft is uniformly distributed on the part of the rotating shaft extending into the water tank, smoke is filtered to enter from the communicating pipeline and then is blown to the fan blades, moving power is provided to rotate so as to drive the rotating shaft to rotate, and the stirring shaft below the rotating shaft is used for stirring water in the water tank, so that the uniformity of the smoke in heating the water is utilized.

As a preferable technical scheme of the utility model, the fan blade is made of light material, and is convenient to blow by flue gas.

As a preferable technical scheme of the utility model, a spiral plate is fixed between the outer box and the water tank, so that the whole stroke of the smoke is increased, and the heat of the smoke is fully utilized.

The utility model has the beneficial effects that: multistage filtration is realized through the first filtering channel, the second filtering channel, the horizontal pipe, the splicing ring, the upper inclined filter plate and the lower filter plate, flue gas enters the first filtering channel and then passes through the upper inclined filter plate, filtered particles enter the second filtering channel under the drive of part of flue gas and are filtered through the lower filter plate in the horizontal pipe, and meanwhile, in order to facilitate later recovery of the filtered materials, the horizontal pipe is made into a spliceable structure; the whole stroke of flue gas is increased through the spiral plate, heats the water in the water tank, in order to increase heating efficiency, the lateral wall of water tank adopts the material that heat conductivility is good, through pivot, flabellum, (mixing) shaft, spiral plate, thereby drives the pivot and rotates when the flue gas gets into the back and blows to the flabellum, thereby utilizes the (mixing) shaft to stir the water and guarantee the homogeneity of heating.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic rear view of the present utility model;

fig. 3 is a schematic cross-sectional view of the present utility model.

In the figure: the filter comprises an air inlet pipe 1, a first filter channel 2, a second filter channel 3, a horizontal pipe 4, a splicing ring 5, a communicating pipeline 6, an outer box 7, a water inlet 8, an air outlet 9, a water outlet 10, an upper inclined filter plate 11, a lower filter plate 12, a water tank 13, a rotating shaft 14, fan blades 15, a stirring shaft 16 and a spiral plate 17.

Detailed Description

Example 1

As shown in fig. 1 to 3, the utility model discloses a flue gas waste heat recycling device of a thermal power plant, which adopts the technical scheme that the flue gas waste heat recycling device comprises an air inlet pipe 1, a first filtering channel 2, a second filtering channel 3, a filtering structure, a communicating pipeline 6, an outer tank 7, a water inlet 8, an air outlet 9, a water outlet 10, a water tank 13 and a stirring structure, wherein the air inlet pipe 1 is communicated with the first filtering channel 2, the second filtering channel 3 is arranged below the first filtering channel 2, the filtering structure is arranged in the first filtering channel 2 and the second filtering channel 3, the multi-stage filtering structure is used for filtering the entering of flue gas, the filtering material can be cleaned and recycled later, the right end of the first filtering channel 2 is communicated to the outer tank 7 through the communicating pipeline 6, the flue gas enters from the filtering structure, the water inlet 8 is arranged on the outer tank 7, the water inlet 8 is communicated to the water tank 13 integrally formed in the outer tank 7, meanwhile, the water inlet 8 is provided with a valve, the water inlet 13 is opened, the lower end of the rear side of the outer tank 7 is provided with the water outlet 10 and the pipeline 13, the water outlet 10 is also provided with the valve, the water outlet 10 is also arranged, the valve is opened, the lower end of the water tank 7 can be heated by the water outlet 9 and the water tank is heated by the stirring structure, and the water tank is evenly and the water body is stirred by the stirring structure.

As a preferred technical scheme of the utility model, the filtering structure comprises a horizontal pipe 4, a splicing ring 5, an upper inclined filter plate 11 and a lower filter plate 12, wherein the upper inclined filter plate 11 is fixed on the right side of the position of the first filtering channel 2 communicated with the second filtering channel 3, smoke gas is filtered by the upper filter plate 11, blocked filter materials are carried into the smoke gas of the second filtering channel 3 through part of the smoke gas, the bent parts of the left end and the right end of the second filtering channel 3 are fixedly connected with the first filtering channel 2, the horizontal pipe 4 is connected between the horizontal ends of the bent parts and fixed by the splicing ring 5, the lower filter plate 12 arranged in the horizontal pipe 4 realizes secondary filtration, filtered materials remain in the horizontal pipe 4, and the horizontal pipe 4 can be detached for cleaning by adopting the installation mode of the splicing ring 5.

As a preferable technical scheme of the utility model, the stirring structure comprises a rotating shaft 14, fan blades 15 and a stirring shaft 16, wherein the rotating shaft 14 is rotatably arranged at the center of the inside of the outer box 7, the fan blades 15 are uniformly distributed at the upper part of the rotating shaft 14, and the positions of the fan blades 15 are aligned with the position of the communication pipeline 6, so that after flue gas enters, the fan blades 15 can be driven to rotate by impact force brought by the flue gas, thereby driving the rotating shaft 14 to rotate, the stirring shaft 16 is uniformly distributed on the part of the rotating shaft 14 extending into the water tank 13, and the stirring shaft 16 is driven to rotate when the rotating shaft 14 rotates, so that uniform heating is ensured.

As a preferable technical scheme of the utility model, the fan blades 15 are made of light materials, and can conveniently rotate when being impacted by smoke.

As a preferable technical scheme of the utility model, a spiral plate 17 is fixed between the outer box 7 and the water tank 13, so that the stroke is increased, the utilization of smoke is increased, and the heat conversion rate of the smoke is improved to a certain extent.

The working principle of the utility model is as follows: when the novel water tank is used, the left end of the air inlet pipe 1 is connected with a smoke exhaust pipeline, smoke enters from the smoke exhaust pipeline and passes through the first filtering channel 2 and the second filtering channel 3, filtering is achieved under the action of the upper inclined filter plate 11 and the lower filter plate 12, the barrier of the upper inclined filter plate 11 can also enter a part of the horizontal pipe 4 under the action of part of smoke, the splicing ring 5 is opened to clean the horizontal pipe 4 when cleaning is needed subsequently, the filtered smoke enters the outer box 7, firstly, the fan blades 15 are impacted to enable the fan blades to rotate so as to drive the rotating shaft 14 to rotate, the stirring shaft 16 is driven to rotate so as to stir water, the smoke moves under the guide of the spiral plate 17, the spiral plate 17 increases the smoke stroke, the water tank is heated, and heating uniformity is achieved under the stirring structure.

The circuit connection related to the utility model is a conventional means adopted by the person skilled in the art, can obtain technical teaching through limited tests, and belongs to the widely used prior art.

The components not described in detail herein are prior art.

Although the specific embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes and modifications without inventive labor may be made within the scope of the present utility model without departing from the spirit of the present utility model, which is within the scope of the present utility model.

Claims

1. The utility model provides a thermal power plant's flue gas waste heat recovery utilizes device which characterized in that: the device comprises an air inlet pipe (1), a first filtering channel (2), a second filtering channel (3), a filtering structure, a communicating pipeline (6), an outer box (7), a water inlet (8), an air outlet (9), a water outlet (10), a water tank (13) and a stirring structure; the air inlet pipe (1) is communicated with the first filtering channel (2); a second filter channel (3) is arranged below the first filter channel (2); filter structures are arranged in the first filter channel (2) and the second filter channel (3); the right end of the first filtering channel (2) is communicated to an outer box (7) through a communication pipeline (6); the outer box (7) is provided with a water filling port (8), and the water filling port (8) is communicated to a water tank (13) integrally formed in the outer box (7); the lower end of the rear side of the outer box (7) is provided with a water outlet (10) and a pipeline which is communicated with the water tank (13); the water inlet (8) and the water outlet (10) are both provided with valves; an air outlet (9) is formed at the right lower end of the outer box (7); the outer box (7) and the water tank (13) are also provided with stirring structures.

2. The flue gas waste heat recycling device of a thermal power plant according to claim 1, wherein: the filtering structure comprises a horizontal pipe (4), a splicing ring (5), an upper inclined filter plate (11) and a lower filter plate (12); an upper inclined filter plate (11) is fixed on the right side of the position of the first filter channel (2) communicated with the second filter channel (3); the bending parts at the left end and the right end of the second filtering channel (3) are fixedly connected with the first filtering channel (2), and the horizontal pipes (4) are connected between the horizontal ends of the bending parts and are fixed by the splicing rings (5).

3. The flue gas waste heat recycling device of a thermal power plant according to claim 1, wherein: the stirring structure comprises a rotating shaft (14), fan blades (15) and a stirring shaft (16); a rotating shaft (14) is rotatably arranged at the inner center of the outer box (7); the fan blades (15) are uniformly distributed on the upper part of the rotating shaft (14), and the positions of the fan blades are aligned to the position of the communication pipeline (6); the stirring shafts (16) are uniformly distributed on the part of the rotating shaft (14) extending into the water tank (13).

4. A flue gas waste heat recovery and utilization device of a thermal power plant according to claim 3, wherein: the fan blade (15) is made of light materials.

5. The flue gas waste heat recycling device of a thermal power plant according to claim 1, wherein: a spiral plate (17) is fixed between the outer box (7) and the water tank (13).