CN220649177U

CN220649177U - Waste heat recovery device

Info

Publication number: CN220649177U
Application number: CN202322147826.8U
Authority: CN
Inventors: 孙珏龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-03-22
Anticipated expiration: 2033-08-10

Abstract

The utility model belongs to the technical field of power plant equipment, in particular to a waste heat recovery device, which comprises two fixed plates, wherein a plurality of heat conduction pipes are fixedly connected between the two fixed plates, the outer wall of each fixed plate is fixedly connected with two side plates, a plurality of communication ports are formed in each side plate, the fixed plates and the outer walls of the side plates are fixedly connected with outer boxes, the inner walls of the outer boxes are provided with inner boxes, one side plate is fixedly connected with a smoke inlet, and the upper sealing plate is fixedly connected with a smoke outlet; the assembly capable of recycling heat and maintaining the temperature of the inner cavity of the fixed plate is formed by the side plate, the communication port, the outer box body, the inner box body and the vent pipe, so that the temperature in the fixed plate and the loss of the temperature of the heat conducting pipe can be reduced, the heating efficiency of cold water communicated to the heat conducting pipe when the smoke circulates next time can be improved, and the preheating recovery of the device is improved.

Description

Waste heat recovery device

Technical Field

The utility model belongs to the technical field of power plant equipment, and particularly relates to a waste heat recovery device.

Background

The power generation utilizes the heat energy generated by the combustible during combustion, and the heat energy is converted into electric energy through the power generation device. The coal resources in China are rich, 10.9 hundred million tons of coal are produced in 1990, and the coal for power generation only accounts for 12 percent. In recent years, the best mode of disposing household garbage by using waste incineration power generation is highly paid attention to in China, a great amount of heat is carried in tail gas generated in the thermal power generation and waste incineration power generation processes, the existing device for recycling waste heat of high-temperature flue gas is characterized in that cold water flows in a heat conducting pipe, the heat conducting pipe absorbs the circulated high-temperature flue gas to absorb the heat of the high-temperature flue gas and then transfers the heat to the cold water flowing in the heat conducting pipe, so that the cold water absorbs the heat to heat the heat, and the waste heat is recycled.

Disclosure of Invention

The utility model provides a waste heat recovery device, which has the characteristics of solving the problem that the existing waste heat recovery device has lower heat utilization efficiency when flue gas is intermittently discharged.

The utility model provides the following technical scheme: including two fixed plates, two fixedly connected with a plurality of heat pipe between the fixed plate, a plurality of the heat pipe is linked together through communicating pipe, two curb plates of fixed plate outer wall fixedly connected with, a plurality of intercommunication mouth have been seted up on the curb plate, the fixed plate with curb plate outer wall fixedly connected with outer box, outer box inner wall is equipped with interior box, interior box with fixed plate with curb plate outer wall fixed connection, be equipped with in the interior box with the breather pipe that the intercommunication mouth is linked together, one of them fixedly connected with advances the tobacco inlet on the curb plate, the fixed plate with curb plate top fixedly connected with goes up the shrouding, go up fixedly connected with exhaust port on the shrouding.

Wherein one end of each of the two heat conducting pipes is respectively connected with a lower connecting pipe and an upper connecting pipe, and water holes are formed in the heat conducting pipes.

The fixing plate is fixedly connected with a lower sealing plate at the bottom end of the side plate, and a unsealing plate is detachably connected to the lower sealing plate.

The water inlet is fixedly connected with the top end of the outer box body, the water outlet is fixedly connected with the bottom end of the outer box body, and the water inlet and the water outlet are communicated with the inner cavity of the inner box body.

The heat conducting pipe comprises a plurality of heat conducting pipes, wherein the outer walls of the heat conducting pipes are all connected with sliding rings in a sliding mode, the sliding rings are connected through connecting frames, connecting rods are fixedly connected to the connecting frames, and one ends of the connecting rods penetrate through the fixing plates and the outer box body.

The beneficial effects of the utility model are as follows: the assembly capable of recycling heat and maintaining the temperature of the inner cavity of the fixed plate is formed by the side plate, the communication port, the outer box body, the inner box body and the vent pipe, so that the temperature in the fixed plate and the loss of the temperature of the heat conducting pipe can be reduced, the heating efficiency of cold water communicated to the heat conducting pipe when the smoke circulates next time can be improved, and the preheating recovery of the device is improved.

None of the parts of the device are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of a three-dimensional split structure of a fixing plate according to the present utility model;

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

fig. 4 is an enlarged schematic view of fig. 1 a according to the present utility model.

In the figure: 1. a fixing plate; 11. a heat conduction pipe; 111. a water through hole; 12. a lower connecting pipe; 121. a communicating pipe; 13. an upper connecting pipe; 14. an upper sealing plate; 141. a smoke outlet; 15. a side plate; 151. a smoke inlet; 152. a communication port; 16. a lower sealing plate; 161. disassembling the sealing plate; 2. a slip ring; 21. a connecting frame; 22. a connecting rod; 3. an outer case; 31. an inner case; 32. a vent pipe; 33. a drain hole; 34. and (5) entering the water hole.

Detailed Description

Referring to fig. 1-4, the present utility model provides the following technical solutions: including two fixed plates 1, fixedly connected with a plurality of heat pipe 11 between two fixed plates 1, a plurality of heat pipe 11 is linked together through communicating pipe 121, two curb plates 15 of fixed plate 1 outer wall fixedly connected with, a plurality of communication port 152 have been seted up on the curb plate 15, fixed plate 1 and curb plate 15 outer wall fixedly connected with outer box 3, outer box 3 inner wall is equipped with interior box 31, interior box 31 and fixed plate 1 and curb plate 15 outer wall fixed connection, be equipped with the breather pipe 32 that is linked together with communication port 152 in the interior box 31, fixedly connected with advances the tobacco inlet 151 on one of them curb plate 15, fixed plate 1 and curb plate 15 top fixedly connected with go up shrouding 14, fixedly connected with exhaust port 141 on going up shrouding 14.

In this embodiment: the fixing plate 1 is used for installing and erecting the heat conducting pipes 11, the heat conducting pipes 11 are mutually communicated through the communicating pipe 121, meanwhile, the heat conducting pipes 11 can absorb external heat by using heat conducting materials, and conduct heat transfer, when in use, a plurality of heat conducting pipes 11 are communicated, meanwhile, two heat conducting pipes 11 are communicated with a pipeline for circulating cold water, after the cold water circulates in the heat conducting pipes 11, the heat conducting pipes 11 can heat the circulating cold water, the side plate 15 fixedly connected with the outer wall of the fixing plate 1 enables smoke to enter the inner cavity of the fixing plate 1 through the smoke inlet 151, the smoke outlet 141 fixedly connected with the top end of the fixing plate 1 is used for discharging smoke generated by a power plant, after high-heat smoke enters the inner cavity of the fixing plate 1, the heat is absorbed by the plurality of heat conducting pipes 11, and then the cold water is heated, so that the water is heated, the flue gas waste heat generated by the power plant is recovered, the outer box body 3 fixedly connected with the outer wall of the fixed plate 1 and the upper sealing plate 14 is sleeved on the fixed plate 1, meanwhile, the inner box body 31 arranged in the outer box body 3 is sleeved on the fixed plate 1, the inner cavity of the inner box body 31 is communicated with the inner cavity of the inner box body 31 through a plurality of communicating ports 152 formed on the outer wall of the side plate 15, so that the flue gas can enter the inner cavity of the inner box body 31, the inner cavity of the inner box body 31 is communicated with the communicating ports 152 through the vent pipe 32, after the high-temperature flue gas enters the inner box body 31, the vent pipe 32 is isolated by the vent pipe 32, the pipe wall temperature of the vent pipe 32 can be improved due to the circulation of the high-temperature flue gas, the inner cavity of the inner box body 31 can be heated by injecting certain water in advance, so that the water can be heated by the heat transfer of a part of the high-temperature flue gas flowing into the vent pipe 32, the recovery rate of the flue gas is improved, meanwhile, the flue gas is isolated from the water in the vent pipe 32, can directly take the hot water after the heating, utilize high temperature flue gas constantly through changing, simultaneously when high temperature flue gas is interrupted to be discharged, receive flue gas heating hot water in advance in the interior box 31 can be in interior box 31, play the effect of insulating temperature to the fixed plate 1 inner chamber is outer, interior box 31 outer wall is not connected with outer box 3 inner wall simultaneously, make it can reduce the heat loss of interior hot water of interior box 31, reduce the loss of temperature in the fixed plate 1 and the temperature of heat pipe 11, thereby make the device can improve the next flue gas circulation time, the heating efficiency of the cold water that communicates to heat pipe 11 circulation, thereby improve the recovery of device to preheating.

One end of each of the two heat-conducting pipes 11 is respectively connected with a lower connecting pipe 12 and an upper connecting pipe 13, and the heat-conducting pipes 11 are provided with water holes 111; the lower connecting pipe 12 and the upper connecting pipe 13 are used for connecting cold water with the heat conducting pipes 11, so that after the cold water is connected with a plurality of heat conducting pipes 11, the cold water can be effectively heated through the water through holes 111 and can pass through the plurality of heat conducting pipes 11, and the flue gas heat generated by the power plant is utilized.

The bottom ends of the fixed plate 1 and the side plates 15 are fixedly connected with a lower sealing plate 16, and the lower sealing plate 16 is detachably connected with a unsealing plate 161; the lower sealing plate 16 fixedly connected with the bottom ends of the fixed plate 1 and the side plate 15 seals the bottom of the inner cavity of the fixed plate 1, and after the device is used for a long time, the sealing plate 161 can be opened to discharge the smoke and dust generated in the fixed plate 1.

The top end of the outer box body 3 is fixedly connected with a water inlet hole 34, the bottom end of the outer box body 3 is fixedly connected with a water outlet hole 33, and the water inlet hole 34 and the water outlet hole 33 are communicated with the inner cavity of the inner box body 31; the water inlet 34 fixedly connected to the top end of the outer box body 3 is used for filling water into the inner box body 31, so that the water can absorb the heat of the flue gas flowing in the breather pipe 32, the water inlet 34 is used for discharging and utilizing the hot water in the inner box body 31, the water is convenient to replace, and the heat in the inner box body 31 can be utilized more.

The outer walls of the plurality of heat-conducting pipes 11 are all connected with sliding rings 2 in a sliding manner, the plurality of sliding rings 2 are connected through a connecting frame 21, a connecting rod 22 is fixedly connected to the connecting frame 21, and one end of the connecting rod 22 penetrates through the fixing plate 1 and the outer box body 3; the sliding ring 2 of the sliding connection of the outer wall of the heat conducting pipe 11 connects the sliding rings 2 of a plurality of heat conducting pipes 11 through the connecting frame 21, the connecting rod 22 fixedly connected to the connecting frame 21 penetrates out of the outer box body 3, so that when the smoke dust attached to the heat conducting pipe 11 needs to be cleaned, the connecting rod 22 can be pulled or pushed, the sliding ring 2 is driven to be positioned on the outer wall of the heat conducting pipe 11 to push away the smoke dust, the outer wall of the heat conducting pipe 11 is separated from the smoke dust, the heat conducting efficiency is ensured, the pushed smoke dust falls into the lower sealing plate 16, and the smoke dust is discharged by opening the dismantling sealing plate 161.

The working principle and the using flow of the utility model are as follows: the heat conduction pipes 11 are communicated, after the cold water flows into the heat conduction pipes 11, the smoke enters the inner cavity of the fixed plate 1 through the smoke inlet 151, the smoke outlet 141 fixedly connected with the top end of the fixed plate 1 is used for discharging the smoke generated by the power plant, after the high-heat smoke enters the inner cavity of the fixed plate 1, the heat is absorbed by the heat conduction pipes 11 and then heats the cold water, thereby heating the water, recovering the smoke waste heat generated by the power plant, simultaneously enabling the redundant smoke to enter the ventilation pipe 32 through the communication port 152, heating the water in the inner box 31, simultaneously enabling the hot water to be located in the inner box 31, playing a heat insulation effect outside the inner cavity of the fixed plate 1, simultaneously enabling the outer wall of the inner box 31 to be not connected with the inner wall of the outer box 3, enabling the heat loss of the hot water in the inner box 31 to be reduced, and the heat loss of the temperature in the fixed plate 1 and the heat conduction pipes 11 to be reduced, so that the heating efficiency of the cold water flowing into the heat conduction pipes 11 is improved when the next time is achieved, and the device is capable of improving the preheating smoke recovery efficiency of the smoke.

Claims

1. The utility model provides a waste heat recovery device which characterized in that: including two fixed plates (1), two fixedly connected with a plurality of heat pipe (11) between fixed plate (1), a plurality of heat pipe (11) are linked together through communicating pipe (121), two curb plates (15) of fixed plate (1) outer wall fixedly connected with, a plurality of intercommunication mouth (152) have been seted up on curb plate (15), fixed plate (1) with curb plate (15) outer wall fixedly connected with outer box (3), outer box (3) inner wall is equipped with interior box (31), interior box (31) with fixed plate (1) with curb plate (15) outer wall fixed connection, be equipped with in interior box (31) with breather pipe (32) that intercommunication mouth (152) are linked together, one of them fixedly connected with advances cigarette mouth (151) on curb plate (15), fixed plate (1) with curb plate (15) top fixedly connected with goes up shrouding (14), go up fixedly connected with smoke outlet (141) on shrouding (14).

2. A waste heat recovery device according to claim 1, wherein: one end of each heat conducting pipe (11) is connected with a lower connecting pipe (12) and an upper connecting pipe (13), and water holes (111) are formed in the heat conducting pipes (11).

3. A waste heat recovery device according to claim 1, wherein: the fixing plate (1) and the bottom end of the side plate (15) are fixedly connected with a lower sealing plate (16), and the lower sealing plate (16) is detachably connected with a unsealing plate (161).

4. A waste heat recovery device according to claim 1, wherein: the water inlet device is characterized in that a water inlet hole (34) is fixedly connected to the top end of the outer box body (3), a water drain hole (33) is fixedly connected to the bottom end of the outer box body (3), and the water inlet hole (34) and the water drain hole (33) are communicated with the inner cavity of the inner box body (31).

5. A waste heat recovery device according to claim 1, wherein: the outer walls of the heat conduction pipes (11) are all connected with sliding rings (2) in a sliding mode, the sliding rings (2) are connected through connecting frames (21), connecting rods (22) are fixedly connected to the connecting frames (21), and one ends of the connecting rods (22) penetrate through the fixing plates (1) and the outer box body (3).