CN208805075U - A kind of boiler exhaust gas exhaust heat heating system - Google Patents
A kind of boiler exhaust gas exhaust heat heating system Download PDFInfo
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- CN208805075U CN208805075U CN201820736335.3U CN201820736335U CN208805075U CN 208805075 U CN208805075 U CN 208805075U CN 201820736335 U CN201820736335 U CN 201820736335U CN 208805075 U CN208805075 U CN 208805075U
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Abstract
The utility model relates to a kind of boiler exhaust gas exhaust heat heating systems.Including sequentially connected fume centralized case, deduster, high-temperature heat-exchanging, spray column, cryogenic heat exchanger；High-temperature heat-exchanging includes first shell, and the first heat exchanger tube is arranged in first shell, baffle plate is arranged in first shell；Cryogenic heat exchanger includes second shell, second heat exchanger tube is set in second shell, second heat exchanger tube is arranged by outer tube and inner tube and is constituted, and intake antrum and water chamber is arranged in second shell, one end of the second heat exchanger tube is connected to intake antrum, the other end is connected to water chamber；In the inner tube of the second heat exchanger tube in water chamber and connecting tube is set between the spray tube of spray column, water supplying pipe is connected in the end for the first heat exchanger tube for being located at the first shell end face side connecting with deduster, connecting tube is set between the other end and water chamber of the first heat exchanger tube, the connection setting return pipe outside intake antrum.The utility model effectively utilizes boiler exhaust gas waste heat and heating effect is good.
Description
Technical field
The utility model relates to heating system technical field more particularly to a kind of boiler exhaust gas exhaust heat heating systems.
Background technique
The boiler system tail portion smoke evacuation in thermal power plant produces a large amount of heat loss, in various heat loss, smoke evacuation heat
Loss accounts for more than half of boiler heat loss, and the principal element of boiler heat loss is exhaust gas temperature, if exhaust gas temperature can be reduced,
Boiler efficiency can then correspondingly increase, and net coal consumption rate will decline, if smoke exhaust heat can be effectively utilized, it is tight can to alleviate the energy
The situation opened, and exhaust gas temperature can be reduced.The characteristics of in view of power plant's smoke evacuation, it can apply it among heating, avoid the energy
The wasting of resources.
Summary of the invention
The utility model aims to solve the problem that the deficiencies in the prior art, and provide it is a kind of it is simple and reasonable, heating effect is good
Boiler exhaust gas exhaust heat heating system.
In order to achieve the above object, the utility model adopts the following technical solutions: a kind of boiler exhaust gas exhaust heat heating system, packet
Include fume centralized case, deduster, high-temperature heat-exchanging, spray column, the cryogenic heat exchanger set gradually；The high-temperature heat-exchanging includes
The the first snakelike heat exchanger tube extended towards first shell length direction is arranged in first shell, changes first for first shell
The baffle plate parallel with straight line pipeline is set between two adjacent straight line pipelines on heat pipe, and multiple baffle plates are alternately arranged
Column, one end of baffle plate and first shell side wall seal the affixed, other end and the bending place of two straight line piping connections and have gap；
The cryogenic heat exchanger includes second shell, the second snakelike heat exchanger tube is arranged in second shell, the second heat exchanger tube is by outer tube
It is arranged composition with inner tube, the intake antrum being isolated with second shell and the water outlet being isolated with second shell are set in second shell
Chamber, one end of the second heat exchanger tube is connected to intake antrum, the other end is connected to water chamber；In the air inlet of fume centralized case and deduster
Between mouthful, between the gas outlet of deduster and an end face of first shell, the air inlet of the other end of first shell and spray column
The second heat exchanger tube between the inner tube of the second heat exchanger tube between mouthful, in the leakage fluid dram and intake antrum of spray column, in water chamber
It is respectively provided with connecting tube between inner tube and the spray tube of spray column, air-introduced machine is set in the connecting tube of deduster gas outlet, in place
It is connected with water supplying pipe in the end of the first heat exchanger tube of the first shell end face side connecting with deduster, in the first heat exchange
Connecting tube is set between the other end and water chamber of pipe, the connection setting return pipe outside intake antrum.
Preferably: the deduster includes the dedusting shell that bottom opens up dust-exhausting port, and dust discharge door is arranged at dust-exhausting port,
Demixing plate is set in dedusting shell, and dust cleaning case and lower dust cleaning case in formation, setting two is parallel to each other perpendicular in upper dust cleaning case
The side wall sealing of straight demarcation plate, demarcation plate and dedusting shell in upper dust cleaning case is affixed, sequentially forms dedusting chamber on first, the
Dedusting chamber on two, dedusting chamber in third, are arranged the demarcation plate parallel with the demarcation plate of upper dust cleaning case in lower dust cleaning case, under remove
The sealing of the side wall of demarcation plate in dirt case and dedusting shell is affixed, the demarcation plate in lower dust cleaning case be located at the surface of dust-exhausting port and
Demarcation plate lower edge extends to dust-exhausting port, in lower dust cleaning case along the direction of dedusting chamber on dedusting chamber to third on by first according to
Secondary to form the first lower dedusting chamber and the second lower dedusting chamber, the demarcation plate in upper dust cleaning case is located at two of the demarcation plate in lower dust cleaning case
Side, dedusting is intracavitary is respectively provided with exoskeletal cloth bag, two open ends difference of exoskeletal cloth bag in dedusting chamber and third on second
Affixed with the top surface of dedusting shell and demixing plate, the lower end of exoskeletal cloth bag passes through demixing plate and sealing is affixed, removes under first
Dirt chamber and the second lower intracavitary exoskeletal cloth bag of setting of dedusting, the upper end of the intracavitary exoskeletal cloth bag of lower dedusting pass through demixing plate and close
Sealing connects, lower end setting and the affixed fixed plate of dedusting shell, the lower end of the intracavitary exoskeletal cloth bag of lower dedusting pass through fixed plate
And sealing is affixed, the upper end of the exoskeletal cloth bag of the first lower dedusting chamber is intracavitary positioned at dedusting on first, and dedusting is intracavitary on second
The intracavitary exoskeletal cloth bag of dedusting is located at the two sides of the demarcation plate in lower dust cleaning case, the second lower dedusting under exoskeletal cloth bag and second
The upper end of intracavitary exoskeletal cloth bag is intracavitary positioned at dedusting on second, and deduster air inlet is located at the side wall of dedusting chamber on first
On, the gas outlet of deduster is located in third on the side wall of dedusting chamber.
Preferably: being arranged in the inner tube of the second heat exchanger tube in water chamber and the connecting tube between the spray tube of spray column
For old spray liquid to be discharged and the branch pipe of new spray liquid is added.
The beneficial effects of the utility model are: boiler smoke is collected in fume centralized case in the utility model, first pass through
Flue gas ash removal processing, on the one hand avoids dust content larger, on the other hand avoids subsequent heat-exchange device from blocking, then through spraying
Can be discharged after tower processing, generate heat after the spray liquid of spray column and flue gas heat exchange, the partial heat and heating water return into
The first heat exchange of row, heating water return enter back into high-temperature heat-exchanging, heat exchange are carried out with the higher flue gas of initial temperature, to reach
Heat water temperature.The utility model efficiently utilizes boiler exhaust gas heat, energy saving resource, while reducing exhaust gas temperature,
Improve the efficiency of boiler.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of deduster in the utility model.
In figure: 1- fume centralized case；2- demixing plate；3- dedusting shell；4- demarcation plate；The exoskeletal cloth bag of 5-；6- air-introduced machine；
7- first shell；The first heat exchanger tube of 8-；9- baffle plate；10- water supplying pipe；11- spray column；12- second shell；13- second exchanges heat
Pipe；14- intake antrum；15- water chamber；16- fixed plate；17- return pipe；Dedusting chamber on 18- first；Dedusting chamber on 19- second；
Dedusting chamber in 20- third；The lower dedusting chamber of 21- first；The lower dedusting chamber of 22- second.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples:
As depicted in figs. 1 and 2, the utility model include the fume centralized case 1 set gradually, deduster, high-temperature heat-exchanging,
Spray column 11, cryogenic heat exchanger；The high-temperature heat-exchanging includes first shell 7, is arranged in first shell 7 towards first shell
The first snakelike heat exchanger tube 8 that 7 length directions extend, is arranged between two adjacent straight line pipelines on the first heat exchanger tube 8
The baffle plate 9 parallel with straight line pipeline, multiple baffle plates 9 are alternately arranged, and one end of baffle plate 9 and 7 side wall of first shell are close
Sealing connects, there is gap in the bending place of the other end and two straight line piping connections；The cryogenic heat exchanger includes second shell 12,
The second snakelike heat exchanger tube 13 of setting in second shell 12, the second heat exchanger tube 13 is arranged by outer tube and inner tube to be constituted, in second shell
The setting intake antrum 14 being isolated with second shell 12 and the water chamber 15 being isolated with second shell 12, the second heat exchanger tube 13 in body 12
One end be connected to intake antrum 14, the other end is connected to water chamber 15；Between fume centralized case 1 and the air inlet of deduster,
Between the gas outlet of deduster and an end face of first shell 7, the air inlet of the other end of first shell 7 and spray column 11 it
Between, the second heat exchange between the leakage fluid dram of spray column 11 and the inner tube of the second heat exchanger tube 13 in intake antrum 14, in water chamber 15
It is respectively provided with connecting tube between the inner tube of pipe 13 and the spray tube of spray column 11, air inducing is set in the connecting tube of deduster gas outlet
Machine 6 is connected with water supplying pipe in the end for the first heat exchanger tube 8 for being located at the 7 end face side of first shell connecting with deduster
10, connecting tube is set between the other end and water chamber 15 of the first heat exchanger tube 8, the connection setting return pipe outside intake antrum 14
17。
Boiler smoke is collected in fume centralized case 1 in the utility model, is first passed through flue gas ash removal processing, is on the one hand avoided
It is larger to discharge dust content, subsequent heat-exchange device is on the other hand avoided to block, then can be discharged after the processing of spray column 11,
Heat is generated after the spray liquid of spray column 11 and flue gas heat exchange, the partial heat and heating water return carry out first heat exchange, just
Step increases heating water return temperature, and wherein heating water return flows into the interlayer of 13 inner and outer pipes of the second heat exchanger tube, and spray liquid flows into inner tube
In, the two carries out heat exchange in reverse flow, and exchange efficiency is higher, and the return water through primary heat exchange enters high-temperature heat-exchanging
In, heat exchange is carried out with the higher flue gas of initial temperature, to reach heating water temperature, wherein heating water return enters the first heat exchanger tube 8
In, flue gas moves in first shell 7 along the reverse baffling of trend of the first heat exchanger tube 8, water can be directly used in heating at this time
It supplies water.
In the present embodiment, the deduster includes the dedusting shell 3 that bottom opens up dust-exhausting port, and dust discharge is arranged at dust-exhausting port
Door, is arranged demixing plate 2 in dedusting shell 3, and dust cleaning case and lower dust cleaning case in formation are arranged two in upper dust cleaning case and mutually put down
The side wall sealing of capable vertical demarcation plate 4, demarcation plate 4 and dedusting shell 3 in upper dust cleaning case is affixed, sequentially forms on first
Dedusting chamber 19 on dedusting chamber 18, second, dedusting chamber 20 in third, 4 phase of demarcation plate of setting and upper dust cleaning case in lower dust cleaning case
The side wall sealing of parallel demarcation plate 4, demarcation plate 4 and dedusting shell 3 in lower dust cleaning case is affixed, the demarcation plate in lower dust cleaning case
4 are located at the surface of dust-exhausting port and 4 lower edge of demarcation plate extends to dust-exhausting port, along dedusting chamber on by first in lower dust cleaning case
18, which sequentially form first to the direction of dedusting chamber 20 in third, descends dedusting chamber 21 and the second lower dedusting chamber 22, point in upper dust cleaning case
Partition 4 is located at the two sides of the demarcation plate 4 in lower dust cleaning case, is respectively provided with nothing in dedusting chamber 20 in dedusting chamber 19 and third on second
Two open ends of skeleton cloth bag 5, exoskeletal cloth bag 5 are affixed with the top surface of dedusting shell 3 and demixing plate 2 respectively, exoskeletal cloth
The lower end of bag 5 passes through demixing plate 2 and sealing is affixed, and exoskeletal cloth is arranged in dedusting chamber 22 under dedusting chamber 21 and second under first
Bag 5, the upper end of the intracavitary exoskeletal cloth bag 5 of lower dedusting passes through demixing plate 2 and sealing is affixed, lower end is arranged and dedusting shell 3 is solid
The fixed plate 16 connect, the lower end of the intracavitary exoskeletal cloth bag 5 of lower dedusting passes through fixed plate 16 and sealing is affixed, the first lower dedusting chamber
The upper end of 21 exoskeletal cloth bag 5 is located on first in dedusting chamber 18, the exoskeletal cloth bag 5 and second on second in dedusting chamber 19
Exoskeletal cloth bag 5 in lower dedusting chamber 22 is located at the two sides of the demarcation plate 4 in lower dust cleaning case, bone-free in the second lower dedusting chamber 22
The upper end of frame cloth bag 5 is located on second in dedusting chamber 19, and deduster air inlet is located at dedusting on first on the side wall of dedusting chamber 18
The gas outlet of device is located in third on the side wall of dedusting chamber 20.Flue gas can be intracavitary through multiple dedustings Bag filter, reduce flue gas
Dustiness prevents heat exchanger from blocking.
Spray liquid is not used to fume treatment in circulation afterwards several times in the utility model, and waste and old spray liquid need to be discharged in time
New spray liquid is added simultaneously, in the inner tube of the second heat exchanger tube 13 in water chamber 15 and the company between the spray tube of spray column 11
It is arranged on adapter tube for old spray liquid to be discharged and the branch pipe of new spray liquid is added.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, if the method concept of the utility model and the various improvement of technical solution progress are used, or without
Improvement directly applies to other occasions, both is within the protection scope of the present invention.
Claims (3)
1. a kind of boiler exhaust gas exhaust heat heating system, it is characterised in that: including set gradually fume centralized case (1), deduster,
High-temperature heat-exchanging, spray column (11), cryogenic heat exchanger；
The high-temperature heat-exchanging includes first shell (7), is arranged in first shell (7) towards first shell (7) length direction
Snakelike the first heat exchanger tube (8) extended, setting and straight line between two adjacent straight line pipelines on the first heat exchanger tube (8)
The parallel baffle plate of pipeline (9), multiple baffle plates (9) are alternately arranged, one end of baffle plate (9) and first shell (7) side wall
There is gap in the bending place for sealing the affixed, other end and two straight line piping connections；
The cryogenic heat exchanger includes second shell (12), snakelike the second heat exchanger tube (13) of setting in second shell (12),
Second heat exchanger tube (13) is arranged by outer tube and inner tube to be constituted, in the second shell (12) setting be isolated with second shell (12) into
Water cavity (14) and the water chamber (15) being isolated with second shell (12), one end and intake antrum (14) of the second heat exchanger tube (13) are even
The logical, other end is connected to water chamber (15)；
Between fume centralized case (1) and the air inlet of deduster, an end face of the gas outlet of deduster and first shell (7) it
Between, between the other end of first shell (7) and the air inlet of spray column (11), the leakage fluid dram and intake antrum of spray column (11)
(14) inner tube and spray column of the second heat exchanger tube (13) between the inner tube of the second heat exchanger tube (13) in, in water chamber (15)
(11) connecting tube is respectively provided between spray tube；
Air-introduced machine (6) are set in the connecting tube of deduster gas outlet, are being located at first shell (7) end face connecting with deduster
The end of the first heat exchanger tube (8) of side is connected with water supplying pipe (10), the other end and water outlet in the first heat exchanger tube (8)
Connecting tube is arranged between (15) in chamber, connects setting return pipe (17) outside in intake antrum (14).
2. boiler exhaust gas exhaust heat heating system according to claim 1, it is characterised in that: the deduster includes that bottom is opened
If the dedusting shell (3) of dust-exhausting port, dust discharge door is set at dust-exhausting port, demixing plate (2) are set in dedusting shell (3), is formed
Two vertical demarcation plates (4) being parallel to each other are arranged, in upper dust cleaning case in upper dust cleaning case and lower dust cleaning case in upper dust cleaning case
Demarcation plate (4) and the side wall sealing of dedusting shell (3) are affixed, sequentially form dedusting chamber (18) on first, dedusting chamber on second
(19), the demarcation plate (4) parallel with demarcation plate (4) of upper dust cleaning case is arranged in dedusting chamber (20) in third in lower dust cleaning case,
Demarcation plate (4) and the side wall sealing of dedusting shell (3) in lower dust cleaning case is affixed, and the demarcation plate (4) in lower dust cleaning case is located at row
The surface of dirt mouth and demarcation plate (4) lower edge extends to dust-exhausting port, along dedusting chamber (18) on by first in lower dust cleaning case
The direction of dedusting chamber (20) sequentially forms under first lower dedusting chamber (21) and second dedusting chamber (22) on to third, in upper dust cleaning case
Demarcation plate (4) be located at the two sides of the demarcation plate (4) in lower dust cleaning case, the dedusting chamber in dedusting chamber (19) and third on second
(20) in be respectively provided with exoskeletal cloth bag (5), two open ends of exoskeletal cloth bag (5) respectively with the top surface of dedusting shell (3) and
Demixing plate (2) is affixed, and the lower end of exoskeletal cloth bag (5) passes through demixing plate (2) and sealing is affixed, under first dedusting chamber (21) and
The exoskeletal cloth bag (5) of setting in second lower dedusting chamber (22), the upper end of the intracavitary exoskeletal cloth bag (5) of lower dedusting pass through demixing plate
(2) and sealing is affixed, lower end is arranged and dedusting shell (3) affixed fixed plate (16), the intracavitary exoskeletal cloth bag (5) of lower dedusting
Lower end pass through fixed plate (16) and sealing is affixed, the upper end of the exoskeletal cloth bag (5) of first lower dedusting chamber (21) is located at first
It is exoskeletal in the exoskeletal cloth bag (5) and second lower dedusting chamber (22) on second in dedusting chamber (19) in upper dedusting chamber (18)
Cloth bag (5) is located at the two sides of the demarcation plate (4) in lower dust cleaning case, and second descends the upper of the exoskeletal cloth bag (5) in dedusting chamber (22)
End is located on second in dedusting chamber (19), and deduster air inlet is located on first on the side wall of dedusting chamber (18), and deduster goes out
Port is located in third on the side wall of dedusting chamber (20).
3. boiler exhaust gas exhaust heat heating system according to claim 1, it is characterised in that: second in water chamber (15)
It is arranged in connecting tube between the inner tube of heat exchanger tube (13) and the spray tube of spray column (11) for old spray liquid and addition to be discharged
The branch pipe of new spray liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820736335.3U CN208805075U (en) | 2018-05-17 | 2018-05-17 | A kind of boiler exhaust gas exhaust heat heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820736335.3U CN208805075U (en) | 2018-05-17 | 2018-05-17 | A kind of boiler exhaust gas exhaust heat heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208805075U true CN208805075U (en) | 2019-04-30 |
Family
ID=66224723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820736335.3U Active CN208805075U (en) | 2018-05-17 | 2018-05-17 | A kind of boiler exhaust gas exhaust heat heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208805075U (en) |
-
2018
- 2018-05-17 CN CN201820736335.3U patent/CN208805075U/en active Active
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