CN205535903U - Flue gas deep cooling ware - Google Patents

Flue gas deep cooling ware Download PDF

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Publication number
CN205535903U
CN205535903U CN201620347278.0U CN201620347278U CN205535903U CN 205535903 U CN205535903 U CN 205535903U CN 201620347278 U CN201620347278 U CN 201620347278U CN 205535903 U CN205535903 U CN 205535903U
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CN
China
Prior art keywords
flue gas
header
membrane type
type wallboard
tube
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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.)
Withdrawn - After Issue
Application number
CN201620347278.0U
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Chinese (zh)
Inventor
谭波
张月明
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Changsha Weiming Energy Saving Technology Co Ltd
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Changsha Weiming Energy Saving Technology Co Ltd
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Priority to CN201620347278.0U priority Critical patent/CN205535903U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

Abstract

The utility model provides a flue gas deep cooling ware, includes feed liquor header (1), go out liquid header (2), with feed liquor header (1) and play liquid header (2) are connected, and backup pad (4) be connected can be dismantled with flue (3) to the periphery, a plurality of both ends respectively with the diaphragm type wallboard tube bank (5) that feed liquor header (1) and play liquid header (2) are connected, diaphragm type wallboard tube bank (5) have both ends respectively with heat exchange tube (501) that feed liquor header (1) and play liquid header (2) are connected, with slab (502) that heat exchange tube (501) are connected, heat exchange tube (501) the derangement between (5) is restrained to adjacent diaphragm type wallboard, makes the flue gas passageway between the adjacent diaphragm type wallboard tube bank (5) be snakelike bend.

Description

A kind of flue gas deep cooler
Technical field
This utility model relates to heat recovery technical field, especially relates to one and Industrial Boiler or industrial furnace smoke carry out degree of depth cooling, reclaim the flue gas deep cooler of heat energy.
Background technology
Active service station boiler enters the exhaust gas temperature before cleaner unit because considering flue gas acid dew point and dust stratification synergism, boiler design exhaust gas temperature for a long time cannot dive, general exhaust gas temperature designs at about 130~140 DEG C.If using high-sulfur combustor, then exhaust gas temperature design load reaches about 150 DEG C;And actual moving process exhaust gas temperature is the most higher, part boiler is higher than design load about 20~50 DEG C.Often reducing by 10 DEG C according to related data report exhaust gas temperature, boiler efficiency can improve 0.6%~1.0%, and as a example by a 600MW unit, boiler efficiency improves 0.6%~1.0%, can save coal 1.15~1.91 tons the most per hour.Visible, boiler exhaust gas heat recovery has great potential, it is possible to bring huge economic benefit.Exhaust gas temperature is higher not only reduces boiler efficiency, also make efficiency of dust collection and desulfuration efficiency all reduce, desulfurization water consumption increase.
In order to make full use of boiler exhaust gas waste heat, typically at boiler back end ductwork, flue gas waste heat recovery apparatus is installed, reclaims smoke discharging residual heat, improve boiler efficiency.But, traditional flue gas waste heat recovery apparatus tube bank uses light pipe mostly, and in flue gas waste heat recovery apparatus, flue gas is less with the heat transfer temperature difference of working medium, and the coefficient of heat transfer is little.In order to strengthen the heat transfer effect of waste-heat recovery device, the tube bank arranged in needing to increase heat transfer area, the confined space is inevitable many and close, and metal wastage is big, equipment investment is more;And flue gas resistance significantly increases, air-introduced machine power consumption is big, and station-service electricity is big;Bulky, floor space is big, and weight is big, lifting complexity, installation difficulty and bigger to system entire effect;Most cases needs to change power plant's original air-introduced machine configuration;Product axial length is big, it is impossible to thoroughly clean;By the corrosion-resistant conditionality of material, service life is shorter.
CN101706109A discloses a kind of embedded deep cooler for boiler flue gas;CN201513909U discloses a kind of deep cooler for boiler flue gas, including a shell, with flue gas dividing plate, the inner chamber of shell is divided into upper, middle and lower flue cell, uses the spiral fin coil of tooth punching or non-tooth punching as heat-exchanging tube bundle.When flue gas flow rate is low when, between fin, flue gas does not flow and is equivalent to heat-insulation layer, restricts heat exchange.When improving flue gas flow rate, escaping in the flue gas position that resistance is minimum between two finned tubes, does not has effective heat exchange, and when flue gas flow rate is too high simultaneously, drag losses is the biggest.Although the inner chamber of shell being divided into upper, middle and lower flue cell the heat exchange efficiency of finned tube is made moderate progress, but still fail fundamentally to change the defect certainly using finned tube.
Utility model content
In order to overcome the defect of prior art, this utility model provides a kind of flue gas deep cooler.
In order to solve above-mentioned technical problem, this utility model provides a kind of flue gas deep cooler, including feed liquor header;Go out liquid header;With described feed liquor header and go out liquid header and be connected, the gripper shoe that periphery and flue removably connect;If dry tablet two ends respectively with described feed liquor header and go out the membrane type wallboard tube bank that liquid header is connected;The tube bank of described membrane type wallboard have two ends respectively with described feed liquor header and go out the heat exchanger tube that liquid header is connected, the plate being connected with described heat exchanger tube, heat exchanger tube Heterogeneous Permutation between the tube bank of adjacent membrane type wallboard, makes the serpentine-like bend of exhaust gases passes between the tube bank of adjacent membrane type wallboard.
As improving technical scheme further, the flue gas deep cooler that this utility model provides, described heat exchanger tube includes at least two steel pipes arranged that are parallel to each other;Connecting with plate between adjacent steel pipe, the steel pipe being positioned at membrane type wallboard tube bank two ends has plate also connecting away from adjacent steel pipe direction;The two ends elbow of adjacent steel pipe connects, and forms snakelike heat exchange tube;The steel pipe and the feed liquor header that are positioned at membrane type wallboard tube bank two ends or the connection end going out liquid header are provided with thread connecting joint;It is provided with block bulge loop away from the side of tube end at described thread connecting joint;Described heat exchanger tube is by attaching nut and described feed liquor header or to go out liquid header detachably connected.
As improving technical scheme further, the flue gas deep cooler that this utility model provides, described plate is provided with expansion joint;The plate that both sides all connect with heat exchanger tube is additionally provided with the deformation groove parallel with described heat exchanger tube, and the thickness of described deformation groove is less than plate thickness in other place in addition to deformation groove, and when from being thermally deformed stress, described deformation groove produces flexural deformation or is torn.
As improving technical scheme further, the flue gas deep cooler that this utility model provides, the fume side of described heat exchanger tube and described feed liquor header or the junction that goes out liquid header is provided with the first sealing gasket;Hydraulic fluid side is provided with the second sealing gasket.
As improving technical scheme further, the flue gas deep cooler that this utility model provides, the outer surface of described membrane type wallboard tube bank scribbles corrosion resistant dope layer.
As improving technical scheme further, the flue gas deep cooler that this utility model provides, the outer surface of described membrane type wallboard tube bank scribbles wear-resistant paint layer.
As improving technical scheme further, the flue gas deep cooler that this utility model provides, it is provided with, between the tube bank of described membrane type wallboard, the cleaning shower nozzle cleaning fluid supply tube and being connected with this supply pipe.
As improving technical scheme further, the flue gas deep cooler that this utility model provides, it is provided with, in the lower section of described membrane type wallboard tube bank, the dust collection bucket being connected with flue.
In the case of not conflicting, above-mentioned improvement project can be implemented alone or in combination.
The technical scheme that this utility model provides, there is compact conformation, low cost, can be directly mounted in flue, heat exchanger tube Heterogeneous Permutation between membrane type wallboard convenient for installation and maintenance, adjacent tube bank, the serpentine-like bend of exhaust gases passes between the tube bank of adjacent membrane type wallboard, make flue gas when flowing through flue gas deep cooler, produce disturbance, thus improve heat exchange efficiency, the sheet of membrane type wallboard tube bank is thick compared with the fin of finned tube, flow resistance more resistant to mill, fume side is little, can solve dust stratification present in running, wear and tear, the technical problem such as corrosion.The tube bank of membrane type wallboard is conducive to being designed to pressure higher exchange piece, before flue gas deep cooler can being arranged on air preheater, the heat transmission equipment that Substitute For Partial fluid medium pressure is higher, temperature is higher, is remarkably improved the thermal efficiency of steam generator system, reduces gross coal consumption rate.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, constitutes the part of the application, but is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of embodiment flue gas deep cooler;
Fig. 2 is the location arrangements schematic diagram of the membrane type wallboard tube bank of embodiment flue gas deep cooler;
Fig. 3 is the structural representation of the membrane type wallboard tube bank of embodiment flue gas deep cooler;
Fig. 4 is heat exchanger tube and the feed liquor header of embodiment flue gas deep cooler or goes out the connected mode schematic diagram of liquid header.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in further detail.
Flue gas deep cooler as shown in Figures 1 to 4, including feed liquor header 1;Go out liquid header 2;With feed liquor header 1 and go out liquid header 2 and be connected, the gripper shoe 4 that periphery and flue 3 removably connect;If dry tablet two ends respectively with feed liquor header 1 and go out the membrane type wallboard tube bank 5 that liquid header 2 is threaded connection;Membrane type wallboard tube bank 5 have two ends respectively with feed liquor header 1 and go out the heat exchanger tube 501 that liquid header 2 is connected, heat exchanger tube 501 includes at least two steel pipes arranged that are parallel to each other, connect with plate 502 between adjacent steel pipe, it is positioned at membrane type wallboard to restrain the steel pipe at 5 two ends and have plate also connecting away from adjacent steel pipe direction, the two ends elbow 505 of adjacent steel pipe connects, form snakelike heat exchange tube, it is positioned at membrane type wallboard restrain the steel pipe at 5 two ends and feed liquor header 1 or go out the connection end of liquid header 2 and be provided with thread connecting joint 507, it is provided with block bulge loop 506 away from the side of heat exchanger tube 501 end at described thread connecting joint 507, heat exchanger tube 501 Heterogeneous Permutation between adjacent membrane type wallboard tube bank 5, make the serpentine-like bend of exhaust gases passes between adjacent membrane type wallboard tube bank 5.Plate 502 is provided with expansion joint 503, the plate 502 that both sides all connect with heat exchanger tube is additionally provided with the deformation groove 504 parallel with heat exchanger tube, the thickness of deformation groove 504, less than plate thickness in other place in addition to deformation groove 504, deforms groove 504 and produces flexural deformation or be torn when from being thermally deformed stress.
Heat exchanger tube Heterogeneous Permutation between the tube bank of adjacent membrane type wallboard, the serpentine-like bend of exhaust gases passes between the tube bank of adjacent membrane type wallboard, make flue gas when flowing through flue gas deep cooler, flue gas direction constantly changes, produce disturbance, thus improve heat exchange efficiency, it is possible to decrease the heat exchange area of flue gas deep cooler.
The two ends of membrane type wallboard tube bank 5 respectively with feed liquor header 1 and to go out liquid header 2 detachably connected, whole flue gas deep cooler is detachably connected with flue so that convenient for installation and maintenance.
Plate 502 is provided with expansion joint 503, the plate 502 that both sides all connect with heat exchanger tube is additionally provided with the deformation groove 504 parallel with heat exchanger tube, the thickness of deformation groove 504, less than plate thickness in other place in addition to deformation groove 504, deforms groove 504 and produces flexural deformation or be torn when from being thermally deformed stress.The temperature difference because existing between plate 502 and heat exchanger tube 501 or the thermal deformation stress that causes of unlike material can be eliminated; deformation groove 504 is strain relief mechanism; when membrane type wallboard tube bank 5 generation thermal deformation stress; deformation groove 504 preferentially produces flexural deformation or is torn; make product under abnormal production status; can effectively protect plate 502 and heat exchanger tube 501 damage, thus extend the service life of product.
Go out liquid header 2 relatively feed liquor header 1 closer to gas approach end so that it is more excellent that membrane type wallboard tube bank 5 and flue gas carry out countercurrent flow, heat exchange efficiency and cooling-down effect, and it is more reasonable to arrange.
The fume side of other alternative, heat exchanger tube 501 and feed liquor header 1 or the junction that goes out liquid header 2 is provided with the first sealing gasket 8, and hydraulic fluid side is provided with the second sealing gasket 9.
Other alternative, the outer surface of membrane type wallboard tube bank 5 is also coated with corrosion resistant dope layer.
Other alternative, the outer surface of membrane type wallboard tube bank 5 is also coated with wear-resistant paint layer.
Other alternative, is additionally provided with, between membrane type wallboard tube bank 5, the cleaning shower nozzle 6 cleaning fluid supply tube and being connected with this supply pipe.Membrane type wallboard tube bank 5 is provided with wiper mechanism, can extend cycle of operation.
Other alternative, is additionally provided with, in the lower section of membrane type wallboard tube bank 5, the dust collection bucket 7 being connected with flue 3.Dust collection bucket 7 can collect the dust that flue gas deep cooler produces; and by being arranged on two valves of dust collection bucket 7 bottom; alternately open; the dust collected by dust collection bucket 7 in time in the case of non-stop-machine is discharged; solve because flue gas is through flue gas deep cooler, the amount of dust blocking flue increased because of cooling.
Obviously, this utility model is not limited to above preferred implementation, also can carry out conversion and the improvement of various ways in the spirit that this utility model claim and description limit, can solve same technical problem, and obtain intended technique effect, therefore not repeat.Those of ordinary skill in the art can from this utility model disclosure directly or all schemes of associating, as long as within the spirit that claim limits, falling within protection domain of the present utility model.

Claims (8)

1. a flue gas deep cooler, it is characterised in that: include feed liquor header (1);Go out liquid header (2);With described feed liquor header (1) and go out liquid header (2) and be connected, the gripper shoe (4) that periphery and flue (3) removably connect;If dry tablet two ends respectively with described feed liquor header (1) and go out membrane type wallboard tube bank (5) that liquid header (2) is connected;Described membrane type wallboard tube bank (5) have two ends respectively with described feed liquor header (1) and go out the heat exchanger tube (501) that liquid header (2) is connected, the plate (502) being connected with described heat exchanger tube (501), heat exchanger tube (501) Heterogeneous Permutation between adjacent membrane type wallboard tube bank (5), makes the serpentine-like bend of exhaust gases passes between adjacent membrane type wallboard tube bank (5).
Flue gas deep cooler the most according to claim 1, it is characterised in that: described heat exchanger tube (501) includes at least two steel pipes arranged that are parallel to each other;Connecting with plate (502) between adjacent steel pipe, the steel pipe being positioned at membrane type wallboard tube bank (5) two ends has plate also connecting away from adjacent steel pipe direction;The two ends elbow (505) of adjacent steel pipe connects, and forms snakelike heat exchange tube;The steel pipe and the feed liquor header (1) that are positioned at membrane type wallboard tube bank (5) two ends or the connection end going out liquid header (2) are provided with thread connecting joint (507);It is provided with block bulge loop (506) away from the side of heat exchanger tube (501) end at described thread connecting joint (507);Described heat exchanger tube (501) is by attaching nut and described feed liquor header (1) or to go out liquid header (2) detachably connected.
Flue gas deep cooler the most according to claim 1 and 2, it is characterised in that: described plate (502) is provided with expansion joint (503);The plate (502) that both sides all connect with heat exchanger tube is additionally provided with the deformation groove (504) parallel with described heat exchanger tube, the thickness of described deformation groove (504) is less than plate thickness in other place in addition to deformation groove (504), and when from being thermally deformed stress, described deformation groove (504) produces flexural deformation or is torn.
Flue gas deep cooler the most according to claim 2, it is characterised in that: the fume side of described heat exchanger tube (501) and described feed liquor header (1) or the junction that goes out liquid header (2) is provided with the first sealing gasket (8);Hydraulic fluid side is provided with the second sealing gasket (9).
Flue gas deep cooler the most according to claim 1, it is characterised in that: the outer surface of described membrane type wallboard tube bank (5) scribbles corrosion resistant dope layer.
Flue gas deep cooler the most according to claim 1, it is characterised in that: the outer surface of described membrane type wallboard tube bank (5) scribbles wear-resistant paint layer.
Flue gas deep cooler the most according to claim 1, it is characterised in that: it is provided with the cleaning shower nozzle (6) cleaning fluid supply tube and being connected with this supply pipe between described membrane type wallboard tube bank (5).
Flue gas deep cooler the most according to claim 1, it is characterised in that: it is provided with, in the lower section of described membrane type wallboard tube bank (5), the dust collection bucket (7) being connected with flue (3).
CN201620347278.0U 2016-04-25 2016-04-25 Flue gas deep cooling ware Withdrawn - After Issue CN205535903U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620347278.0U CN205535903U (en) 2016-04-25 2016-04-25 Flue gas deep cooling ware

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620347278.0U CN205535903U (en) 2016-04-25 2016-04-25 Flue gas deep cooling ware

Publications (1)

Publication Number Publication Date
CN205535903U true CN205535903U (en) 2016-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620347278.0U Withdrawn - After Issue CN205535903U (en) 2016-04-25 2016-04-25 Flue gas deep cooling ware

Country Status (1)

Country Link
CN (1) CN205535903U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105737182A (en) * 2016-04-25 2016-07-06 长沙为明节能科技有限公司 Smoke in-depth cooler
CN106546114A (en) * 2016-11-29 2017-03-29 无锡市锡源锅炉有限公司 It is a kind of with adjustable except the boiler afterheat recovering device of smoked sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105737182A (en) * 2016-04-25 2016-07-06 长沙为明节能科技有限公司 Smoke in-depth cooler
CN105737182B (en) * 2016-04-25 2018-10-26 长沙为明节能科技有限公司 Flue gas deep cooler
CN106546114A (en) * 2016-11-29 2017-03-29 无锡市锡源锅炉有限公司 It is a kind of with adjustable except the boiler afterheat recovering device of smoked sheet

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20160831

Effective date of abandoning: 20181026

AV01 Patent right actively abandoned