CN207298900U - A kind of boiler afterheat recovering device - Google Patents
A kind of boiler afterheat recovering device Download PDFInfo
- Publication number
- CN207298900U CN207298900U CN201720353927.2U CN201720353927U CN207298900U CN 207298900 U CN207298900 U CN 207298900U CN 201720353927 U CN201720353927 U CN 201720353927U CN 207298900 U CN207298900 U CN 207298900U
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- China
- Prior art keywords
- babinet
- fin
- pipe
- water
- flue gas
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Abstract
The utility model discloses a kind of boiler afterheat recovering device, including the babinet with upper opening, the side of the babinet is communicated with water entering section, the opposite side connection outlet part of babinet, babinet is internally provided with heat exchanger assembly, high-temperature flue gas carries out heat exchange by the water in heat exchanger assembly and babinet, can solve the prior art boiler thermal efficiency is low and the flue gas of discharge carries the technical problem of a large amount of dust pollution environment.
Description
Technical field
It the utility model is related to fuel apparatus technical field, more particularly to a kind of boiler afterheat recovering device.
Background technology
The equipment that boiler is a kind of chemical energy by fuel is converted into thermal energy by burning, the high-temperature steam that boiler produces
Can directly for industrial production and people's lives provide needed for thermal energy, also can by Steam Power Equipment by the hot steam of generation turn
Mechanical energy is changed into drive other power-equipments, the daily production for industrial enterprise.
The thermal efficiency of existing boiler is always relatively low, most boiler thermal efficiency probably 80% or so.And boiler
A relatively low major reason of the thermal efficiency is that have a large amount of thermal energy in the high-temperature flue gas of its discharge, these thermal energy cannot repeat profit
With and be wasted, do not meet the energy conservation and environmental protection theme under current China's economic system reform.In addition, carry dust
Boiler smoke is directly discharged to cause the pollution of environment in air.
Therefore, the prior art has yet to be improved and developed.
The content of the invention
The purpose of this utility model is to provide a kind of boiler afterheat recovering device, to solve the boiler thermal effect of the prior art
Rate is low and the flue gas of discharge carries the technical problem that a large amount of dust pollutes environment.
The technical solution of the utility model is as follows：A kind of boiler afterheat recovering device, wherein, including with upper opening
Babinet, the side of the babinet are communicated with water entering section, the opposite side connection outlet part of babinet, and babinet is internally provided with heat exchange
Component, high-temperature flue gas carry out heat exchange by the water in heat exchanger assembly and babinet.
The boiler afterheat recovering device, wherein, the heat exchanger assembly is provided with some rows in babinet, per heat extraction
It is staggered between exchange component, the heat exchanger assembly includes a pipe portion, and fin, wing are provided with the excircle of the pipe portion
Piece extends in the shape of a spiral along the axial direction of pipe portion.
The boiler afterheat recovering device, wherein, the fin includes the diversion division of pointed guiding high-temperature flue gas, leads
Stream portion is arranged at the outer end of fin, and the pitch of fin is 2-3mm.
The boiler afterheat recovering device, wherein, the fin outer surface is additionally provided with turbulent groove, and turbulent groove is from fin
Middle part to fin outer contour extend.
The boiler afterheat recovering device, wherein, the upper opening of babinet is provided with smoke-intake pipe and smoke exhaust pipe, boiler row
The high-temperature flue gas gone out enters in babinet from smoke-intake pipe, is discharged from smoke exhaust pipe.
The boiler afterheat recovering device, wherein, the water entering section includes water inlet supervisor and some water inlet pipes, water inlet
Branch pipe is connected with water inlet supervisor, and water inlet pipe is distributed along the short transverse of babinet；The outlet part includes water outlet main pipe and some
Exit branch, water outlet main pipe are connected with exit branch, and exit branch is distributed along the short transverse of babinet.
The beneficial effects of the utility model：For the utility model by providing a kind of boiler afterheat recovering device, there is provided more
Arrange heat exchanger assembly and carry out sufficient heat exchange by high-temperature flue gas and water, water while reducing flue-gas temperature in heating compartment,
Water water temperature after heat exchange rises, and being passed through allows boiler heat water within the shorter time in boiler, improve
The thermal efficiency of boiler, takes full advantage of the energy of residual heat from boiler fume；Flue gas, which is passed through in water, eliminates substantial portion of dust,
Make the flue gas of discharge more environmental clean.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the dimensional structure diagram under another angle in the utility model.
Fig. 3 is the top view of the utility model.
Fig. 4 is the cross section structure figure of heat exchanger assembly in the utility model.
Fig. 5 be the utility model heat exchanger assembly in wherein one section fin structure diagram.
Fig. 6 is the structure diagram of another embodiment of heat exchanger assembly in the utility model.
Fig. 7 is arrangement architecture schematic diagram of the heat exchanger assembly in babinet in the utility model.
Embodiment
To make the purpose of this utility model, technical solution and advantage clearer, clear and definite, develop simultaneously implementation referring to the drawings
The utility model is further described in example.
Refering to Fig. 1 and Fig. 2, the utility model provides a kind of boiler afterheat recovering device, boiler afterheat recovering device and pot
The smoke outlet of stove is connected, and the cloth bag that the flue gas after boiler combustion enters back into boiler into boiler afterheat recovering device after processing removes
In dirt device.Boiler afterheat recovering device includes the babinet 1 with upper opening, and the side of the babinet 1 is communicated with water entering section 3,
The opposite side connection outlet part 4 of babinet 1, babinet 1 are internally provided with heat exchanger assembly 2, and clear water enters babinet from water entering section 3
In 1, drain from outlet part 4, high-temperature flue gas carries out heat exchange by the water in heat exchanger assembly 2 and babinet 1.
Refering to Fig. 3, water entering section 3 includes water inlet supervisor 300 and some water inlet pipes 301, and water inlet pipe 301 and water inlet are responsible for
300 connections, water inlet pipe 301 are distributed along the short transverse of babinet, and water flows again after 300 inflow water inlet pipe 301 of water inlet supervisor
Enter into babinet 1；The outlet part 4 includes water outlet main pipe 400 and some exit branch 401, water outlet main pipe 400 and exit branch
401 connections, exit branch 401 are distributed along the short transverse of babinet 1, and the water after heat exchange flows into water outlet master through exit branch 401
Drain after pipe 400.
Refering to Fig. 7, the heat exchanger assembly 2 is provided with some rows in babinet 1, between row's heat exchanger assembly 2 staggeredly often
Arrangement, staggered heat exchanger assembly 2 avoid the high-temperature flue gas directly gap between two heat exchanger assemblies 2 from top to bottom
Pass through and do not reach heat exchanger assembly 2, increase the time that flue gas and heat exchanger assembly 2 contact and the probability contacted.Refering to figure
4, heat exchanger assembly 2 includes a pipe portion 201, is provided with fin 200 on the excircle of the pipe portion 201, and fin 200 is along pipe portion
201 axial direction extends in the shape of a spiral.High-temperature flue gas is flowed along the outer surface of fin 200, and the fin 200 extended in the shape of a spiral increases
The big contact area of flue gas and fin 200, strengthens the effect of heat exchange between flue gas and clear water.
Further, in order to make heat exchange more abundant with efficiently, refering to Fig. 5, the fin 200 includes pointed guiding
The diversion division 2000 of high-temperature flue gas, diversion division 2000 are arranged at the outer end of fin, and the pitch of fin is 2-3mm, high-temperature flue gas
When flowing through diversion division 2000, since sectional area is die-offed, the air-flow flowed will produce whirlpool, whirlpool at 2000 both ends of diversion division
Make the time that flue gas stays in 2000 both ends of diversion division elongated, increase the time that heat exchange is carried out with clear water, it is skilful by this
Wonderful structure, the efficiency of heat exchange are greatly improved.
Refering to Fig. 6, as another embodiment of the utility model, 200 outer surface of fin is additionally provided with turbulent groove 2001,
Turbulent groove 2001 extends from the middle part of fin 200 to 200 outer contour of fin.When the air-flow of flue gas flows through turbulent groove 2001, flue gas
The laminar flow of script is changed into turbulent flow, and reynolds number Re is more than 4000, produces many small whirlpools in flow field, fluid no longer laminar flow but
Mixed between laminar flow, heat diffusivity makes the heat of high-temperature flue gas be absorbed by the clear water in babinet 1 rapidly, enhances hot friendship
The effect changed.
Preferably, the upper opening of babinet 1 is provided with smoke-intake pipe and smoke exhaust pipe, and the high-temperature flue gas of boiler discharge is from smoke-intake pipe
Into in babinet, discharged from smoke exhaust pipe.
The utility model is by providing a kind of boiler afterheat recovering device, there is provided multiple rows of heat exchanger assembly by high-temperature flue gas
Sufficient heat exchange is carried out with water, water while reducing flue-gas temperature in heating compartment, in the water water temperature after heat exchange
Rise, being passed through allows boiler heat water within the shorter time in boiler, improve the thermal efficiency of boiler, take full advantage of
The energy of residual heat from boiler fume；Flue gas, which is passed through in water, eliminates substantial portion of dust, makes the flue gas of discharge more environmental clean.
It should be appreciated that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
Say, can according to the above description be improved or converted, all these modifications and variations should all belong to the appended power of the utility model
The protection domain that profit requires.
Claims (3)
1. a kind of boiler afterheat recovering device, it is characterised in that including the babinet with upper opening, the side of the babinet connects
Water entering section, the opposite side connection outlet part of babinet are connected with, babinet is internally provided with heat exchanger assembly, and high-temperature flue gas is handed over by heat
Change component and carry out heat exchange with the water in babinet, the heat exchanger assembly is provided with some rows in babinet, per heat extraction exchange group
It is staggered between part, the heat exchanger assembly includes a pipe portion, and fin, fin edge pipe are provided with the excircle of the pipe portion
The axial direction in portion extends in the shape of a spiral, and the fin includes the diversion division of pointed guiding high-temperature flue gas, and diversion division is arranged at fin
Outer end, the pitch of fin is 2-3mm, and the fin outer surface is additionally provided with turbulent groove, turbulent groove from the middle part of fin to
Fin outer contour extends.
2. boiler afterheat recovering device according to claim 1, it is characterised in that the upper opening of babinet is provided with into cigarette
Pipe and smoke exhaust pipe, the high-temperature flue gas of boiler discharge enter in babinet from smoke-intake pipe, are discharged from smoke exhaust pipe.
3. boiler afterheat recovering device according to claim 1, it is characterised in that the water entering section include water inlet supervisor and
Some water inlet pipes, water inlet pipe are connected with water inlet supervisor, and water inlet pipe is distributed along the short transverse of babinet；The outlet part bag
Water outlet main pipe and some exit branch are included, water outlet main pipe is connected with exit branch, and exit branch is distributed along the short transverse of babinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720353927.2U CN207298900U (en) | 2017-04-06 | 2017-04-06 | A kind of boiler afterheat recovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720353927.2U CN207298900U (en) | 2017-04-06 | 2017-04-06 | A kind of boiler afterheat recovering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207298900U true CN207298900U (en) | 2018-05-01 |
Family
ID=62271016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720353927.2U Active CN207298900U (en) | 2017-04-06 | 2017-04-06 | A kind of boiler afterheat recovering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207298900U (en) |
-
2017
- 2017-04-06 CN CN201720353927.2U patent/CN207298900U/en active Active
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