CN208418681U - A kind of waste heat of boiler tail gas multistage recycle device - Google Patents
A kind of waste heat of boiler tail gas multistage recycle device Download PDFInfo
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- CN208418681U CN208418681U CN201820806234.9U CN201820806234U CN208418681U CN 208418681 U CN208418681 U CN 208418681U CN 201820806234 U CN201820806234 U CN 201820806234U CN 208418681 U CN208418681 U CN 208418681U
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a kind of waste heat of boiler tail gas multistage recycle devices, including boiler, boiler is equipped with smoke outlet, described device further includes level-one heat recovery apparatus and second level heat recovery apparatus, the utility model passes through two-stage heat recovery apparatus, tail gas after boiler combustion passes through level-one heat recovery apparatus and second level heat recovery apparatus, heat recovery and utilization rate is high, the tail gas heat conducting pipe of more of setting and filling cooling water in heat exchanging chamber, so that tail gas and the sufficient heat exchange of cooling water, the flowing of tail gas and the flow direction of cooling water are opposite, cooling water first passes through the heating of level-one heat recovery apparatus, water after heating passes through second level heat recovery apparatus again and further heats, higher water temperature can be obtained, the subsequent steam generator of the hot water supply of higher water temperature, more energy can be saved.
Description
Technical field
The utility model relates to a kind of waste heat of boiler tail gas multistage recycle devices.
Background technique
Boiler is a kind of energy conversion, and the energy inputted to boiler has the chemical energy in fuel, and boiler output has
Steam, high-temperature water or the organic heat carrier of certain thermal energy.But existing for boiler one the disadvantage is that at high cost, in addition to fuel itself
Except at high cost, there are one critically important reason be boiler emission exhaust temperature it is relatively high, if tail gas is directly discharged to
In atmosphere, a large amount of thermal energy can be not only wasted, but also atmosphere can be polluted, cause environment temperature to increase, therefore, it is necessary to tail gas
Waste heat be recycled.Current tail gas waste heat recovery use apparatus, structure is more complex, and manufacturing cost is high, recycles
Rate is not also high.Meanwhile needing to use a large amount of steam in experimental branch line, heating steam needs to consume mass energy, increases enterprise
Energy consumption.
Summary of the invention
Aiming at the shortcomings in the prior art, the purpose of this utility model is to provide a kind of recycling of waste heat of boiler tail gas multistage
Utilize device.
To achieve the above object, the utility model uses following technical scheme:
A kind of waste heat of boiler tail gas multistage recycle device, including boiler, boiler are equipped with smoke outlet, and described device is also
Including level-one heat recovery apparatus and second level heat recovery apparatus；
The level-one heat recovery apparatus includes level-one recycling can, and one end of the level-one recycling can is equipped with the first air inlet,
The other end is equipped with the first gas outlet, and the middle part of the level-one recycling can is equipped with heat exchanging chamber, the first air inlet and the first gas outlet it
Between be equipped with a plurality of tail gas heat conducting pipe across heat exchanging chamber connection the first air inlet and the first gas outlet, be filled in the heat exchanging chamber
Cooling water, one end of the heat exchanging chamber are equipped with the first water inlet, and the other end is equipped with the first water outlet；
The second level heat recovery apparatus includes secondary recovery tank, and one end of the secondary recovery tank is equipped with the second air inlet,
The other end is equipped with the second gas outlet, and the middle part of the secondary recovery tank is equipped with heat exchanging chamber, the second air inlet and the second gas outlet it
Between be equipped with a plurality of tail gas heat conducting pipe across heat exchanging chamber connection the second air inlet and the second gas outlet, be filled in the heat exchanging chamber
Cooling water, one end of the heat exchanging chamber are equipped with the second water inlet, and the other end is equipped with the second water outlet；
The smoke outlet is connect with the first air inlet, and the first gas outlet is connect with the second air inlet, second water outlet
It is connect with the first water inlet.
The section of the level-one recycling can is cylinder, and the section of secondary recovery tank is rectangle.
Second gas outlet is equipped with air cleaning unit.
Corrosion-resistant coating is coated on the inner wall of tail gas heat conducting pipe in the level-one heat recovery apparatus and second level heat recovery apparatus.
One end on level-one recycling can close to the first gas outlet is arranged in first water inlet, and the setting of the first water outlet exists
Close to one end of the first air inlet on level-one recycling can.
One end on secondary recovery tank close to the second gas outlet is arranged in second water inlet, and the setting of the second water outlet exists
Close to one end of the second air inlet on secondary recovery tank.
First water outlet is connect with steam generator.
The utility model uses above technical scheme, and by two-stage heat recovery apparatus, the tail gas after boiler combustion passes through one
Grade heat recovery apparatus and second level heat recovery apparatus, heat recovery and utilization rate is high, in heat exchanging chamber the tail gas heat conducting pipe of more of setting and
Cooling water is filled, so that tail gas and the sufficient heat exchange of cooling water, the flowing of tail gas and the flow direction of cooling water are on the contrary, cooling
Water first passes through the heating of level-one heat recovery apparatus, and the water after heating is entered back into second level heat recovery apparatus and further heated, can obtain
Higher water temperature is obtained, the subsequent steam generator of the hot water supply of higher water temperature can save more energy for steam generator
Amount.
Detailed description of the invention
The utility model is described in further details below in conjunction with the drawings and specific embodiments:
Fig. 1 is a kind of structural schematic diagram of waste heat of boiler tail gas multistage recycle device of the utility model；
Fig. 2 a is the structural schematic diagram of level-one heat recovery apparatus；
Fig. 2 b is the cross section structure schematic diagram of level-one heat recovery apparatus heat exchanging chamber；
Fig. 3 a is the structural schematic diagram of second level heat recovery apparatus；
Fig. 3 b is the cross section structure schematic diagram of second level heat recovery apparatus heat exchanging chamber.
Specific embodiment
As shown in Fig. 1, the utility model includes boiler 1, and boiler 1 is equipped with smoke outlet 11, and described device further includes one
Grade heat recovery apparatus 2 and second level heat recovery apparatus 3；
As shown in attached drawing 2a, 2b, the level-one heat recovery apparatus 2 includes level-one recycling can 21, the level-one recycling can 21
One end be equipped with the first air inlet 22, the other end is equipped with the first gas outlet 23, and the middle part of the level-one recycling can 21 is equipped with heat exchange
Chamber 24 is equipped with a plurality of heat exchanging chamber 24 that passes through and is connected to the first air inlet 22 and first between first air inlet 22 and the first gas outlet 23
The tail gas heat conducting pipe 25 of gas outlet 23, cooling water is filled in the heat exchanging chamber 24, and one end of the heat exchanging chamber 24 is equipped with first
Water inlet 26, the other end are equipped with the first water outlet 27；
The second level heat recovery apparatus 3 as shown in attached drawing 3a, 3b includes secondary recovery tank 31, the secondary recovery tank 31
One end is equipped with the second air inlet 32, and the other end is equipped with the second gas outlet 33, and the middle part of the secondary recovery tank 31 is equipped with heat exchanging chamber
34, it is equipped with a plurality of connection the second air inlet 32 and second of heat exchanging chamber 34 that passes through between the second air inlet 32 and the second gas outlet 33 and goes out
The tail gas heat conducting pipe 35 of port 33, is filled with cooling water in the heat exchanging chamber 34, one end of the heat exchanging chamber 34 be equipped with second into
The mouth of a river 36, the other end are equipped with the second water outlet 37；
The smoke outlet 11 is connect with the first air inlet 22, and the first gas outlet 23 is connect with the second air inlet 32, and described
Two water outlets 37 are connect with the first water inlet 26.
Preferably, the section of the level-one recycling can 21 is cylinder, and the section of secondary recovery tank 31 is rectangle.
Preferably, in order to which the tail gas preferably discharged to boiler 1 is handled, second gas outlet 33 is equipped with air
Purification device 4.
Preferably, in order to make tail gas heat conducting pipe have longer service life, the level-one heat recovery apparatus 2 and second level are hot
Corrosion-resistant coating is coated on the inner wall of tail gas heat conducting pipe in recyclable device 3.
Further, one end on level-one recycling can 21 close to the first gas outlet 23 is arranged in first water inlet 26,
One end on level-one recycling can 21 close to the first air inlet 22 is arranged in first water outlet 27.Second water inlet is arranged two
Close to one end of the second gas outlet 33 on grade recycling can 31, the second water outlet is arranged on secondary recovery tank 31 close to the second air inlet
One end of mouth 32.First water outlet 27 is connect with steam generator.
The utility model uses above technical scheme, and by two-stage heat recovery apparatus, the tail gas after boiler 1 burns passes through one
Grade heat recovery apparatus 2 and second level heat recovery apparatus 3, heat recovery and utilization rate is high, the tail gas heat conducting pipe of more of setting in heat exchanging chamber
With filling cooling water, so that tail gas and the sufficient heat exchange of cooling water, the flowing of tail gas and the flow direction of cooling water are on the contrary, cold
But water first passes through the heating of level-one heat recovery apparatus 2, and the water after heating passes through second level heat recovery apparatus 3 again and further heats, can be with
Higher water temperature is obtained, the subsequent steam generator of the hot water supply of higher water temperature can save more energy.
Claims (7)
1. a kind of waste heat of boiler tail gas multistage recycle device, including boiler, boiler is equipped with smoke outlet, it is characterised in that:
Described device further includes level-one heat recovery apparatus and second level heat recovery apparatus；
The level-one heat recovery apparatus includes level-one recycling can, and one end of the level-one recycling can is equipped with the first air inlet, another
End is equipped with the first gas outlet, and the middle part of the level-one recycling can is equipped with heat exchanging chamber, sets between the first air inlet and the first gas outlet
There is a plurality of tail gas heat conducting pipe across heat exchanging chamber connection the first air inlet and the first gas outlet, is filled with cooling in the heat exchanging chamber
Water, one end of the heat exchanging chamber are equipped with the first water inlet, and the other end is equipped with the first water outlet；
The second level heat recovery apparatus includes secondary recovery tank, and one end of the secondary recovery tank is equipped with the second air inlet, another
End is equipped with the second gas outlet, and the middle part of the secondary recovery tank is equipped with heat exchanging chamber, sets between the second air inlet and the second gas outlet
There is a plurality of tail gas heat conducting pipe across heat exchanging chamber connection the second air inlet and the second gas outlet, is filled with cooling in the heat exchanging chamber
Water, one end of the heat exchanging chamber are equipped with the second water inlet, and the other end is equipped with the second water outlet；
The smoke outlet is connect with the first air inlet, and the first gas outlet is connect with the second air inlet, second water outlet and
The connection of one water inlet.
2. a kind of waste heat of boiler tail gas multistage recycle device according to claim 1, it is characterised in that: the level-one
The section of recycling can is cylinder, and the section of secondary recovery tank is rectangle.
3. a kind of waste heat of boiler tail gas multistage recycle device according to claim 1, it is characterised in that: described second
Gas outlet is equipped with air cleaning unit.
4. a kind of waste heat of boiler tail gas multistage recycle device according to claim 1, it is characterised in that: the level-one
Corrosion-resistant coating is coated on the inner wall of tail gas heat conducting pipe in heat recovery apparatus and second level heat recovery apparatus.
5. a kind of waste heat of boiler tail gas multistage recycle device according to claim 1, it is characterised in that: described first
One end on level-one recycling can close to the first gas outlet is arranged in water inlet, and the setting of the first water outlet is close on level-one recycling can
One end of first air inlet.
6. a kind of waste heat of boiler tail gas multistage recycle device according to claim 1, it is characterised in that: described second
One end on secondary recovery tank close to the second gas outlet is arranged in water inlet, and the setting of the second water outlet is close on secondary recovery tank
One end of second air inlet.
7. a kind of waste heat of boiler tail gas multistage recycle device according to claim 1, it is characterised in that: described first
Water outlet is connect with steam generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820806234.9U CN208418681U (en) | 2018-05-28 | 2018-05-28 | A kind of waste heat of boiler tail gas multistage recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820806234.9U CN208418681U (en) | 2018-05-28 | 2018-05-28 | A kind of waste heat of boiler tail gas multistage recycle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208418681U true CN208418681U (en) | 2019-01-22 |
Family
ID=65112741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820806234.9U Active CN208418681U (en) | 2018-05-28 | 2018-05-28 | A kind of waste heat of boiler tail gas multistage recycle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208418681U (en) |
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2018
- 2018-05-28 CN CN201820806234.9U patent/CN208418681U/en active Active
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