CN218329482U

CN218329482U - Waste heat utilization mechanism

Info

Publication number: CN218329482U
Application number: CN202222884486.2U
Authority: CN
Inventors: 徐昌明
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-01-17
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a waste heat utilization mechanism relates to waste heat utilization technical field, and to current waste heat recovery equipment, the pipe of bending of heat transfer is less with the area of contact of water in the water tank, leads to the flue gas through the lower problem of the heat exchange efficiency of the pipe of bending with water, proposes following scheme now, comprising a base plate, bottom plate top outer wall both ends all are fixed with the backup pad, two backup pad top outer wall is fixed with leads to the tobacco pipe. The utility model discloses a lead to the tobacco pipe and will cross including the water pipe package and carry out the heat transfer, recycle the heat conduction ring and can regard as the outer second heat-conducting medium of body except the water pipe, improve heat exchange area, can be more direct with the leading-in cold water of heat in the flue gas in, improve the heat exchange effect, the crisscross setting of heat conduction ring and lead the cigarette ring can make the flue gas be "S" type before leading to tobacco pipe and water pipe and flow, reduce the flue gas velocity of flow, the stroke that the extension flue gas flows, the contact time of extension flue gas and water pipe outer wall and heat conduction ring, further improve the heat exchange effect.

Description

Waste heat utilization mechanism

Technical Field

The utility model relates to a waste heat utilization technology field especially relates to a waste heat utilization mechanism.

Background

The coal-fired boiler is used for thermal power generation, which is a main power generation mode in China at present, high-temperature flue gas is discharged outwards when the coal-fired boiler is combusted, the flue gas contains a large amount of heat, and the flue gas is directly discharged outwards to cause waste of a large amount of heat, so that waste heat recovery equipment is required to be used for recovering waste heat of the flue gas.

For this reason, chinese patent (application No. 201920795791. X) discloses "a flue gas waste heat utilization device" the device is through being provided with the heat exchange tube of bending form at the inner chamber of water tank for the flue gas can persist longer time in the heat exchange tube when passing through the heat exchange tube, and convert the heat into the aquatic in the water tank, heat water, but the device inner tank space is great, the pipe of bending is less with the area of contact of the water in the water tank, lead to the flue gas to be lower through the heat exchange efficiency of the pipe of bending with water.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a waste heat utilization mechanism, lead to the tobacco pipe through setting up and carry out the heat transfer including the water pipe package, the outer second heat-conducting medium of body except that the water pipe can be regarded as to the heat conduction ring of recycling, improve heat exchange area, can be more direct with the leading-in cold water of heat in the flue gas in, improve the heat exchange effect, the not enough of prior art has been overcome, current waste heat recovery equipment has effectively been solved, the pipe of bending of heat transfer is less with the area of contact of water in the water tank, lead to the flue gas through the lower problem of the heat exchange efficiency of the pipe of bending with water.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a waste heat utilization mechanism, includes the bottom plate, bottom plate top outer wall both ends all are fixed with the backup pad, two backup pad top outer wall is fixed with leads to the tobacco pipe, it has the water pipe to lead to the grafting of tobacco pipe one side outer wall, the water pipe outer wall is pegged graft and is had the heat conduction ring of equidistance distribution, it is fixed with the smoke conduction ring of equidistance distribution to lead to the tobacco pipe inner wall, it is connected with out the tobacco pipe to lead to tobacco pipe bottom inner wall one end, it is connected with the purifying box to go out tobacco pipe one end, purifying box one side inner wall is connected with the blast pipe.

Through the above scheme, let in the flue gas and lead to in the flue pipe, let in cold water and flow in the flue pipe, carry out the heat transfer including crossing the water pipe package through leading to the tobacco pipe, the flue gas flows in leading to the flue pipe and carries out the heat exchange with the contact of water pipe outer wall, can regard as the outer second heat-conducting medium of body except the water pipe through the heat conduction ring that sets up, improve the heat exchange area, can be more direct with the leading-in cold water of heat in the flue gas in, improve the heat exchange effect, can reduce the flue gas at the intraductal speed of flowing of leading to the flue gas through the heat conduction ring that sets up together, the contact time of extension flue gas and water pipe outer wall and heat conduction ring, further improve the heat exchange effect.

Preferably, the inner wall of the purification box is provided with filter screen plates distributed at equal intervals, the inner wall of the purification box is provided with net boxes distributed at equal intervals, and the net boxes are filled with activated carbon particles.

Through the above scheme, flue gas after the heat exchange passes through a smoke outlet pipe and enters the purifying box, large particle dust in the flue gas is firstly filtered through the filter screen plate, and then small particle dust in the flue gas is adsorbed and purified through activated carbon in the net cage, so that the pollution of the flue gas discharge to the air is reduced.

Preferably, the outer wall of one side of the purifying box is provided with a fixed opening, the inner walls of two sides of the fixed opening are hinged with door plates, and the two door plates are connected through a hasp lock.

Through the scheme, the door plate can be opened, so that the filter screen plate in the purifying box can be conveniently cleaned and the activated carbon in the net box can be conveniently replaced.

Preferably, a connecting rod is fixed at one end of the outer wall of the bottom of the purifying box, and a grating plate is fixed at one end of the connecting rod.

Through the scheme, objects needing to be dried in a certain humidity can be placed on the grating plates, and the damp objects are subjected to hot air blow drying by utilizing the smoke which has residual temperature after heat exchange and is subjected to filtering and purification.

Preferably, four corners of the outer wall of the top of the bottom plate are provided with fixing holes.

Through above-mentioned scheme, conveniently be fixed in ground with the bottom plate.

Preferably, the heat conduction rings and the smoke guide rings are distributed in a staggered mode.

Through the scheme, the heat conduction rings and the smoke guide rings are arranged in a staggered mode, so that smoke can flow in an S shape before the smoke passing pipe and the water passing pipe, the flow speed of the smoke is reduced, and the flow stroke of the smoke is prolonged.

The beneficial effects of the utility model are that:

1. carry out the heat transfer including wrapping the water pipe through leading to the tobacco pipe, recycle the outer second heat-conducting medium of heat conduction ring can regard as except the body of water pipe, improve the heat exchange area, can be more direct with the leading-in cold water of heat in the flue gas in, improve the heat exchange effect, heat conduction ring and the crisscross setting of leading the cigarette ring can make the flue gas be "S" type flow before leading to tobacco pipe and water pipe, reduce the flue gas velocity of flow, the stroke is flowed in the extension flue gas, the contact time of extension flue gas and water pipe outer wall and heat conduction ring, further improve the heat exchange effect.

2. The flue gas after the heat exchange gets into the purifying box through going out the tobacco pipe in, filters the large granule dust in the flue gas through filtering the otter board earlier, later adsorbs the purification through the interior active carbon of box with a net in to the small granule dust in the flue gas, reduces the pollution of flue gas discharge to the air, can place the thing that some humidity need be dried on the grid plate, utilizes and has had after heat exchange and filter the flue gas after purifying to carry out hot-blast weathering to the humidity thing.

Drawings

Fig. 1 is a three-dimensional cross-sectional view of a waste heat utilization mechanism provided by the present invention;

fig. 2 is a first perspective view of the waste heat utilization mechanism according to the present invention;

fig. 3 is a second perspective view of the waste heat utilization mechanism according to the present invention.

In the figure: 1. a base plate; 2. a support plate; 3. ventilating a smoke pipe; 4. a water pipe; 5. a heat conducting ring; 6. a smoke guide ring; 7. a smoke outlet pipe; 8. a purification box; 9. a filter screen plate; 10. a net cage; 11. an exhaust pipe; 12. a connecting rod; 13. a grid plate; 14. a fixing hole; 15. a door panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a waste heat utilization mechanism comprises a base plate 1, wherein four corners of the outer wall of the top of the base plate 1 are respectively provided with a fixing hole 14, so that the base plate 1 is conveniently fixed on the ground, two ends of the outer wall of the top of the base plate 1 are respectively fixed with a support plate 2, the outer wall of the top of each support plate 2 is fixed with a smoke passing tube 3, the outer wall of one side of each smoke passing tube 3 is inserted with a water passing tube 4, the outer wall of each water passing tube 4 is inserted with heat conducting rings 5 which are distributed equidistantly, the inner wall of each smoke passing tube 3 is fixed with smoke guiding rings 6 which are distributed equidistantly, the heat conducting rings 5 and the smoke guiding rings 6 are distributed in a mutually staggered manner, and the staggered arrangement of the heat conducting rings 5 and the smoke guiding rings 6 can enable smoke to flow in an S shape before the smoke passing tubes 3 and the smoke passing tubes 4, so that the flow rate of the smoke is reduced and the flow stroke of the smoke is prolonged;

one end of the inner wall at the bottom of the smoke passing pipe 3 is connected with a smoke outlet pipe 7, one end of the smoke outlet pipe 7 is connected with a purification box 8, one end of the outer wall at the bottom of the purification box 8 is fixed with a connecting rod 12, one end of the connecting rod 12 is fixed with a grating plate 13, a plurality of wet objects to be dried can be placed on the grating plate 13, the wet objects can be dried by hot air by utilizing the smoke which has residual heat after heat exchange and is filtered and purified, a fixing opening is formed in the outer wall at one side of the purification box 8, door plates 15 are hinged to the inner walls at the two sides of the fixing opening, the two door plates 15 are connected through a hasp lock, and the door plates 15 can be opened to conveniently clean a filter screen plate 9 in the purification box 8 and replace active carbon in the screen box 10;

the inner wall of the purifying box 8 is provided with filter screen plates 9 which are distributed equidistantly, the inner wall of the purifying box 8 is provided with net boxes 10 which are distributed equidistantly, activated carbon particles are filled in the net boxes 10, the flue gas after heat exchange enters the purifying box 8 through the flue gas outlet pipe 7, large particle dust in the flue gas is firstly filtered through the filter screen plates 9, and then small particle dust in the flue gas is adsorbed and purified through the activated carbon in the net boxes 10, so that the pollution of the flue gas exhaust to the air is reduced;

the inner wall of 8 one sides of purifying box is connected with blast pipe 11, let in the flue gas and lead to in the tobacco pipe 3, let in cold water and flow in the water pipe 4, carry out the heat transfer including wrapping water pipe 4 through leading to tobacco pipe 3, the flue gas flows in leading to tobacco pipe 3 and contacts with the outer wall of water pipe 4 and carry out the heat exchange, can regard as the second heat-conducting medium except the body of water pipe 4 through the heat conduction ring 5 that sets up, improve heat exchange area, can be more direct with in the leading-in cold water of heat in the flue gas, improve the heat exchange effect, can reduce the flow velocity of flue gas in leading to tobacco pipe 3 with heat conduction ring 5 together through the smoke guide ring 6 that sets up, prolong the contact time of flue gas and water pipe 4 outer wall and heat conduction ring 5, further improve the heat exchange effect.

The working principle is as follows: the smoke is introduced into the smoke passing pipe 3, the smoke is wrapped in the water passing pipe through the smoke passing pipe for heat exchange, cold water is introduced into the water passing pipe 4 for flowing, the smoke flows in the smoke passing pipe 3 and contacts with the outer wall of the water passing pipe 4 for heat exchange, the arranged heat conducting ring 5 can be used as a second heat conducting medium except the pipe body of the water passing pipe 4, the heat exchange area is increased, heat in the smoke can be more directly led into the cold water, the heat exchange effect is improved, the heat conducting ring 5 and the smoke conducting ring 6 are arranged in a staggered mode, the smoke can flow in an S mode before the smoke passing pipe 3 and the water passing pipe 4, the smoke flow speed is reduced, the smoke flowing stroke is prolonged, the contact time between the smoke and the outer wall of the water passing pipe 4 and the heat conducting ring 5 is prolonged, the heat exchange effect is further improved, the smoke after heat exchange enters the purifying box 8 through the smoke outlet pipe 7, dust in the smoke is firstly filtered through the filter screen plate 9, then small particle dust in the smoke is purified through activated carbon in the net box 10, the smoke is discharged, the pollution to the air is reduced, and some substances needing to be dried, and large particles are placed on the heat exchange grid plate 13 for drying after the heat exchange.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a waste heat utilization mechanism, includes bottom plate (1), its characterized in that, bottom plate (1) top outer wall both ends all are fixed with backup pad (2), two backup pad (2) top outer wall is fixed with leads to tobacco pipe (3), it has water pipe (4) to lead to grafting of tobacco pipe (3) one side outer wall, water pipe (4) outer wall is pegged graft and is had heat conduction ring (5) that the equidistance distributes, it leads cigarette ring (6) that the equidistance distributes to lead to tobacco pipe (3) inner wall is fixed with, it is connected with out tobacco pipe (7) to lead to tobacco pipe (3) bottom inner wall one end, it is connected with purifying box (8) to go out tobacco pipe (7) one end, purifying box (8) one side inner wall connection has blast pipe (11).

2. The waste heat utilization mechanism according to claim 1, wherein the inner wall of the purification box (8) is provided with filter screen plates (9) distributed at equal intervals, the inner wall of the purification box (8) is provided with net cages (10) distributed at equal intervals, and the net cages (10) are filled with activated carbon particles.

3. The waste heat utilization mechanism of claim 1, wherein a fixing opening is formed in the outer wall of one side of the purification box (8), door plates (15) are hinged to the inner walls of two sides of the fixing opening, and the two door plates (15) are connected through a snap lock.

4. The waste heat utilization mechanism as claimed in claim 1, wherein a connecting rod (12) is fixed at one end of the outer wall at the bottom of the purification box (8), and a grid plate (13) is fixed at one end of the connecting rod (12).

5. The waste heat utilization mechanism as claimed in claim 1, wherein four corners of the outer wall of the top of the bottom plate (1) are provided with fixing holes (14).

6. A waste heat utilization mechanism according to claim 1, characterized in that the heat conduction rings (5) and the smoke guide rings (6) are distributed in a staggered manner.