CN209540924U - A kind of flue gas waste heat at the end of boiler recyclable device - Google Patents
A kind of flue gas waste heat at the end of boiler recyclable device Download PDFInfo
- Publication number
- CN209540924U CN209540924U CN201821977042.0U CN201821977042U CN209540924U CN 209540924 U CN209540924 U CN 209540924U CN 201821977042 U CN201821977042 U CN 201821977042U CN 209540924 U CN209540924 U CN 209540924U
- Authority
- CN
- China
- Prior art keywords
- heat
- boiler
- heat regenerator
- flue gas
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000003546 flue gas Substances 0.000 title claims abstract description 76
- 239000002918 waste heat Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 239000000779 smoke Substances 0.000 claims abstract description 47
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 238000005192 partition Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 11
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
A kind of flue gas waste heat at the end of boiler recyclable device, belongs to boiler plant technical field, for recycling flue gas waste heat at the end of boiler.Technical solution is: water tank is located in boiler bottom side, heat regenerator is mounted at the upper side of boiler, the lower end of water injection pipe is connected with water tank, the upper end of water injection pipe is connected with the bottom of heat regenerator, water pump is mounted on water tank and water injection pipe junction, one end of outlet pipe is connected with the top of heat regenerator, the other end of outlet pipe is connected with boiler, the smoke discharging pipe of boiler is connected with the bottom of heat regenerator, there is heat regenerator smoke exhaust pipe at the top of heat regenerator, there is flue gas heat exchange tube in the inner cavity of heat regenerator, the lower end of flue gas heat exchange tube is connected with the smoke discharging pipe of boiler, the upper end of flue gas heat exchange tube is connected with the heat regenerator smoke exhaust pipe at the top of heat regenerator.The utility model structure is simple, easy to use, can sufficiently recycle heat contained by high temperature flue-gas from boiler, substantially reduce the use of condensed water, reduce production cost.
Description
Technical field
The device that a kind of pair of flue gas waste heat at the end of boiler of the utility model is recycled, belongs to boiler plant technical field.
Background technique
As the attention of conservation of natural environment increasingly improves in the whole society, energy conservation and environmental protection is the important of the development of manufacturing enterprise
Content.Energy conservation and environmental protection can effectively improve the utilization rate of the energy, reduce production cost, reduce product price, and it is competing to improve product
Strive power and economic benefit.In many enterprises, need to generate high-temperature vapor using boiler for producing and using, and in boiler combustion
A large amount of high-temperature smoke can be generated during coal.Usual high-temperature smoke is imported directly treating column and carries out condensation process, this is not
A large amount of thermal energy are only wasted, and required condensation water quantity is very big, has considerably increased the production cost of enterprise, be not also inconsistent
Close water-saving requirement.
Utility model content
It is this remaining the technical problem to be solved by the utility model is to provide a kind of flue gas waste heat at the end of boiler recyclable device
Heat recovery apparatus can recycle the heat in high-temperature smoke, while can greatly reduce required condensation water quantity.
The technical solution for solving above-mentioned technical problem is:
A kind of flue gas waste heat at the end of boiler recyclable device, it includes water tank, water pump, heat regenerator, water injection pipe, outlet pipe,
Water tank is located in boiler bottom side, and heat regenerator is mounted at the upper side of boiler, and the lower end of water injection pipe is connected with water tank, infuses
The upper end of water pipe is connected with the bottom of heat regenerator, and water pump is mounted on water tank and water injection pipe junction, one end of outlet pipe with
The top of heat regenerator is connected, and the other end of outlet pipe is connected with boiler, and the cold water in water tank is by water injection pipe injection warm
It is discharged after in the inner cavity of recover from outlet pipe, the smoke discharging pipe of boiler is connected with the bottom of heat regenerator, heat regenerator
Heat regenerator smoke exhaust pipe is arranged at top, there is flue gas heat exchange tube, the lower end of flue gas heat exchange tube and the row of boiler in the inner cavity of heat regenerator
Smoke pipeline is connected, and the upper end of flue gas heat exchange tube is connected with the heat regenerator smoke exhaust pipe at the top of heat regenerator, flue gas heat exchange tube
Outer wall be in contact in heat regenerator inner cavity with cold water.
Above-mentioned flue gas waste heat at the end of boiler recyclable device, is equipped with two pieces of circular bulkheads in the heat regenerator, two pieces every
Plate horizontal parallel is connected to the upper and lower part of heat regenerator inner cavity, and the circumferential edges and heat regenerator inner wall of two pieces of partitions weld
Connection, is respectively formed upper chamber and lower chambers, the row of lower chambers and boiler between two pieces of partitions and heat regenerator top and bottom
Smoke pipeline is connected, and upper chamber is connected with the heat regenerator smoke exhaust pipe at the top of heat regenerator, the water filling port of water injection pipe and water outlet
The water outlet of pipe is respectively in the inner cavity of the heat regenerator between two pieces of partitions.
Above-mentioned flue gas waste heat at the end of boiler recyclable device, the flue gas heat exchange tube are more and arranged in parallel in the shape of a spiral change
Heat pipe, there is multiple flue gas heat exchange tube connecting holes in the plate face of two pieces of partitions respectively, and the both ends of more flue gas heat exchange tubes are respectively with two
Multiple flue gas heat exchange tube connecting holes of block partition are connected.
Above-mentioned flue gas waste heat at the end of boiler recyclable device, is equipped with filter between the heat regenerator and water tank, heat is returned
There is downward conicity in the bottom surface for receiving device, and the bottom surface of heat regenerator and the smoke discharging pipe junction of boiler are annular groove, annular groove
Side have condensation-water drain, condensation-water drain is connected by condenser pipe with filter, filter pass through pipeline and water tank phase
Connection.
Above-mentioned flue gas waste heat at the end of boiler recyclable device, the smoke discharging pipe of the boiler and the bottom surface junction of heat regenerator
There is round tube, round tube is taper, and the larger diameter end of round tube is connected with the upper end of smoke discharging pipe, and the smaller diameter end of round tube is open in heat
Recover bottom chamber is opposite with the bottom surface of lower clapboard.
The beneficial effects of the utility model are:
The utility model is provided with heat regenerator on the outside of boiler, and the hot fume of boiler enters heat regenerator and heat regenerator
Inner cold water carries out heat exchange, and the flue gas heat exchange tube in heat regenerator enables high-temperature flue gas sufficiently to carry out with cold water in the shape of a spiral
Heat exchange, the flue gas after releasing heat are discharged from the smoke exhaust pipe of heat regenerator, absorb the hot water of heat from heat regenerator
It is utilized after water outlet outflow.
The utility model structure is simple, easy to use, heat transfer effect is good, can sufficiently recycle contained by high temperature flue-gas from boiler
Heat, boiler heat-energy can be made full use of, while substantially reducing the use of condensed water, reduce production cost,
Energy-saving and environment-friendly purpose is reached.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of heat regenerator；
Fig. 3 is the structural schematic diagram of the lower clapboard of heat regenerator.
It is marked in figure as follows: boiler 1, water tank 2, water pump 3, heat regenerator 4, water injection pipe 5, outlet pipe 6, smoke discharging pipe 7, heat
Recover smoke exhaust pipe 8, filter 9, flue gas heat exchange tube 10, upper spacer 11, lower clapboard 12, upper chamber 13, lower chambers 14, flue gas change
Heat pipe connecting hole 15, annular groove 16, condenser pipe 17, round tube 18.
Specific embodiment
The utility model is by water tank 2, water pump 3, heat regenerator 4, water injection pipe 5, outlet pipe 6, smoke discharging pipe 7, heat regenerator
Smoke exhaust pipe 8, filter 9, condenser pipe 17 form.
Fig. 1 shows that water tank 2 is located in 1 bottom side of boiler, and heat regenerator 4 is mounted on 1 upper side of boiler.Water injection pipe 5
Lower end be connected with water tank 2, the upper end of water injection pipe 5 is connected with the bottom of heat regenerator 4, water pump 3 be mounted on water tank 2 and note
Cold water in water tank 2 is driven into heat regenerator 4 and exchanges heat by 5 junction of water pipe, water pump 3.One end of outlet pipe 6 and heat are returned
The top for receiving device 4 is connected, and the other end of outlet pipe 6 is connected with boiler 1, cold water exchange heat in heat regenerator 4 after from water outlet
Pipe 6 is discharged, and hot water enters in boiler 1, and boiler of feeding 1 utilizes, and hot water can also be introduced into other need equipment to be used.
Fig. 1 shows that the smoke discharging pipe 7 of boiler 1 is connected with the bottom of heat regenerator 4, and the top of heat regenerator 4 has heat to return
Receive device smoke exhaust pipe 8.High-temperature flue gas from the smoke discharging pipe 7 of boiler 1 enter heat regenerator 4, high-temperature flue gas in heat regenerator 4 with into
The cold water for entering heat exchanger 4 carries out heat exchange, is then discharged from the heat regenerator smoke exhaust pipe 8 at 4 top of heat regenerator.
Fig. 2 shows, there is flue gas heat exchange tube 10 and two pieces of partitions in the inner cavity of heat regenerator 4, two pieces of partitions be respectively on every
Plate 11 and lower clapboard 12, upper spacer 11 and 12 horizontal parallel of lower clapboard are connected to the upper and lower part of 4 inner cavity of heat regenerator, on every
The circumferential edges of plate 11 and lower clapboard 12 are welded to connect with 4 inner wall of heat regenerator respectively, and upper spacer 11 and lower clapboard 12 and heat return
It receives and is respectively formed upper chamber 13 and lower chambers 14 between 4 top and bottom of device.Lower chambers 14 are connected with the smoke discharging pipe 7 of boiler 1
Logical, upper chamber 13 is connected with the heat regenerator smoke exhaust pipe 8 at 4 top of heat regenerator, and flue gas heat exchange tube 10 is mounted on upper spacer 11
In 4 inner cavity of heat regenerator between lower clapboard 12.
Fig. 2 shows that flue gas heat exchange tube 10 is more heat exchanger tubes arranged in parallel in the shape of a spiral, and spiral tube structure can be one
The length for increasing flue gas heat exchange tube 10 in fixed distance, keeps flue gas heat exchange tube 10 and the contact area of heat-exchanging water bigger, raising is changed
The thermal efficiency.
Fig. 2,3 displays, there is multiple flue gas heat exchange tube connecting holes 15 in the plate face of upper spacer 11 and lower clapboard 12 respectively, and more
The both ends of flue gas heat exchange tube 10 are connected with multiple flue gas heat exchange tube connecting holes 15 of upper spacer 11 and lower clapboard 12 respectively.High temperature
Flue gas enters lower chambers 14 from the smoke discharging pipe 7 of boiler 1, then by multiple flue gas heat exchange tube connecting holes 15 of lower clapboard 12 into
Enter more flue gas heat exchange tubes 10, carries out heat exchange by more flue gas heat exchange tubes 10 and cold water.Flue gas after heat release is from upper spacer
11 flue gas heat exchange connecting hole 15 enters upper chamber 13, and the heat regenerator smoke exhaust pipe 8 connected from upper chamber 13 is discharged.
Fig. 2 shows, the water outlet of the water filling port of water injection pipe 5 and outlet pipe 6 is respectively between upper spacer 11 and lower clapboard 12
Heat regenerator 4 inner cavity in, cold water enters between upper spacer 11 and lower clapboard 12, and flue gas heat exchange tube 10 is immersed in heat regenerator 4
In cold water in inner cavity, exchange heat with flue gas heat exchange tube 10.
Fig. 2 is shown, filter 9 is equipped between heat regenerator 4 and water tank 2, high-temperature flue gas can be produced in heat regenerator 4
Raw condensed water discharge.Specific structure is that the bottom surface of heat regenerator 4 has downward conicity, the bottom surface of heat regenerator 4 and boiler
17 junction of smoke discharging pipe is annular groove 16, and there is condensation-water drain in the side of annular groove 16, and condensation-water drain passes through condenser pipe
17 are connected with filter 9, and filter 9 is connected by pipeline with water tank 2.Condensed water enters filter 9 by condenser pipe 17,
Filtered condensed water flows into water tank 2 by pipeline.
Fig. 2 is shown, when the high-temperature flue gas of boiler 1 enters heat regenerator 4, the vapor that contains in high-temperature flue gas with cigarette
Gas heat exchanger tube 10, which carries out temperature in heat exchanging process, to be reduced, and condensation is easy to appear, and condensation droplet passes through under the effect of gravity
The flue gas heat exchange tube connecting hole 15 of lower clapboard 12 is fallen into lower chambers 14, to prevent droplet from passing through smoke discharging pipe 7 from lower chambers 14
Back boiler 1 is flow backwards, needs that protecting component is installed in the bottom surface junction of smoke discharging pipe 7 and heat regenerator 4.Therefore, in boiler 1
The bottom surface junction of smoke discharging pipe 7 and heat regenerator 4 is mounted with round tube 18, and round tube 18 is taper, the larger diameter end of round tube 18 with
The upper end of smoke discharging pipe 7 is connected, the bottom that the smaller diameter end of round tube 18 is open in 4 lower chambers 14 of heat regenerator with lower clapboard 12
Face is opposite, and high-temperature flue gas can be open from the smaller diameter end of round tube 18 enters lower chambers 14.It, can be along round tube 18 after condensed water is fallen
Slope surface be pooled in annular groove 16, from condensation-water drain be discharged.
The course of work of the invention is as follows:
Boiler 1 and water pump 3 start, and the tail portion high-temperature flue gas that boiler 1 generates is discharged into heat regenerator 4, high temperature from smoke discharging pipe 7
Flue gas initially enters the lower chambers 14 of heat regenerator 4, enters flue gas heat exchange by the flue gas heat exchange tube connecting hole 15 of lower clapboard 12
Pipe 10；
At the same time, the cold water in water tank 2 is squeezed into heat regenerator 4 by water injection pipe 5 by water pump 3, and cold water enters recuperation of heat
It is in contact in the inner cavity of device 4 with flue gas heat exchange tube 10, the heat of the high-temperature flue gas in flue gas heat exchange tube 10 is interior with heat regenerator 4
Cold water in chamber exchanges heat, heats to cold water.Due to the water entered in heat regenerator 4 need from the water filling port of bottom into
Enter, be gradually increasing, could be discharged from the water outlet at top by entire heat regenerator 4, therefore heat exchange is sufficiently, heat transfer rate
Height, heat utilization ratio are high.
Finally, boiler tail high-temperature flue gas enters upper chamber 13 by the flue gas heat exchange tube connecting hole 15 of upper spacer 11, lead to
The discharge of heat regenerator smoke exhaust pipe 8 is crossed, the hot water in heat regenerator 4 is discharged from outlet pipe 6, and hot water enters in boiler 1, boiler of feeding
1 utilizes, and hot water can also be introduced into other need equipment to be used.
One embodiment of the utility model is as follows:
The length of water tank 2 is 1000-1200mm, is highly 1000-1200mm, width 1000-1200mm；
The model IRG pipeline pump of water pump 3；
The length of heat regenerator 4 is 300-500mm, is highly 800-1100mm, width 300-500mm；
The diameter of water injection pipe 5 is 500-700mm, length 700-900mm；
The diameter of outlet pipe 6 is 80-150mm, length 3000-4000mm；
The diameter of smoke discharging pipe 7 is 400-550mm, length 500-700mm；
The diameter of heat regenerator smoke exhaust pipe 8 is 500-700mm, length 500-700mm；
Filter 9 is carbon block filter；
The diameter of flue gas heat exchange tube 10 is 400-500mm, length 500-600mm；
The diameter of upper spacer 11 and lower clapboard 12 is 300-350mm；
The quantity of flue gas heat exchange tube connecting hole 15 is 10-15；
The diameter of condenser pipe 17 is 300-500mm.
Claims (5)
1. a kind of flue gas waste heat at the end of boiler recyclable device, it is characterised in that: it includes water tank (2), water pump (3), heat regenerator
(4), water injection pipe (5), outlet pipe (6), water tank (2) are located in boiler (1) bottom side, and heat regenerator (4) is mounted on boiler (1)
The lower end of upper side, water injection pipe (5) is connected with water tank (2), the upper end of water injection pipe (5) and the bottom phase of heat regenerator (4)
Connection, water pump (3) are mounted on water tank (2) and water injection pipe (5) junction, one end of outlet pipe (6) and the top of heat regenerator (4)
It is connected, the other end of outlet pipe (6) is connected with boiler (1), and the cold water in water tank (2) is returned by water injection pipe (5) injection heat
It is discharged after receiving in the inner cavity of device (4) from outlet pipe (6), the smoke discharging pipe (7) of boiler (1) is connected with the bottom of heat regenerator (4)
It connects, has at the top of heat regenerator (4) heat regenerator smoke exhaust pipe (8), there is flue gas heat exchange tube (10) in the inner cavity of heat regenerator (4),
The lower end of flue gas heat exchange tube (10) is connected with the smoke discharging pipe (7) of boiler (1), the upper end of flue gas heat exchange tube (10) and recuperation of heat
Heat regenerator smoke exhaust pipe (8) at the top of device (4) is connected, the outer wall of flue gas heat exchange tube (10) in heat regenerator (4) inner cavity with
Cold water is in contact.
2. flue gas waste heat at the end of boiler recyclable device according to claim 1, it is characterised in that: the heat regenerator (4)
In two pieces of circular bulkheads are installed, two pieces of partition horizontal parallels are connected to the upper and lower part of heat regenerator (4) inner cavity, two pieces every
The circumferential edges and heat regenerator (4) inner wall of plate are welded to connect, between two pieces of partitions and heat regenerator (4) top and bottom respectively
It forms upper chamber (13) and lower chambers (14), lower chambers (14) is connected with the smoke discharging pipe (7) of boiler (1), upper chamber (13)
It is connected with the heat regenerator smoke exhaust pipe (8) at the top of heat regenerator (4), the water outlet of the water filling port and outlet pipe (6) of water injection pipe (5)
Mouth is respectively in the inner cavity of the heat regenerator (4) between two pieces of partitions.
3. flue gas waste heat at the end of boiler recyclable device according to claim 1, it is characterised in that: the flue gas heat exchange tube
(10) it is more heat exchanger tubes arranged in parallel in the shape of a spiral, there are multiple flue gas heat exchange tube connecting holes respectively in the plate face of two pieces of partitions
(15), the both ends of more flue gas heat exchange tubes (10) are connected with multiple flue gas heat exchange tube connecting holes (15) of two pieces of partitions respectively.
4. flue gas waste heat at the end of boiler recyclable device according to claim 1, it is characterised in that: the heat regenerator (4)
It is equipped between water tank (2) filter (9), there are downward conicity, the bottom of heat regenerator (4) in the bottom surface of heat regenerator (4)
Smoke discharging pipe (7) junction of face and boiler (1) is annular groove (16), and there is condensation-water drain in the side of annular groove (16), is condensed
Water out is connected by condenser pipe (17) with filter (9), and filter (9) is connected by pipeline with water tank (2).
5. flue gas waste heat at the end of boiler recyclable device according to claim 1, it is characterised in that: the row of the boiler (1)
The bottom surface junction of smoke pipeline (7) and heat regenerator (4) has round tube (18), and round tube (18) is taper, the major diameter of round tube (18)
End is connected with the upper end of smoke discharging pipe (7), the smaller diameter end of round tube (18) opening in heat regenerator (4) lower chambers (14) and
The bottom surface of lower clapboard (12) is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821977042.0U CN209540924U (en) | 2018-11-28 | 2018-11-28 | A kind of flue gas waste heat at the end of boiler recyclable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821977042.0U CN209540924U (en) | 2018-11-28 | 2018-11-28 | A kind of flue gas waste heat at the end of boiler recyclable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209540924U true CN209540924U (en) | 2019-10-25 |
Family
ID=68262397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821977042.0U Expired - Fee Related CN209540924U (en) | 2018-11-28 | 2018-11-28 | A kind of flue gas waste heat at the end of boiler recyclable device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209540924U (en) |
-
2018
- 2018-11-28 CN CN201821977042.0U patent/CN209540924U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |