CN205537230U - Flue gas, Gas gas heater structure - Google Patents

Flue gas, Gas gas heater structure Download PDF

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Publication number
CN205537230U
CN205537230U CN201620101062.6U CN201620101062U CN205537230U CN 205537230 U CN205537230 U CN 205537230U CN 201620101062 U CN201620101062 U CN 201620101062U CN 205537230 U CN205537230 U CN 205537230U
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CN
China
Prior art keywords
flue gas
heat exchanger
fluoroplastics
housing
exchanger tube
Prior art date
Application number
CN201620101062.6U
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Chinese (zh)
Inventor
何正纲
顾国跃
占招飞
洪显树
Original Assignee
浙江东氟塑料科技有限公司
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Application filed by 浙江东氟塑料科技有限公司 filed Critical 浙江东氟塑料科技有限公司
Priority to CN201620101062.6U priority Critical patent/CN205537230U/en
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Publication of CN205537230U publication Critical patent/CN205537230U/en

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Abstract

The utility model discloses a heat exchanger the structure, the utility model provides a leakproofness is good, safety and reliability, maintenance cost is low, long service life's flue gas, the gas gas heater structure, the heat exchanger heat exchange tube of having solved existence among the prior art corrodes seriously, heat exchange efficiency descends, influence its result of use and life -span, the high technical problem of maintenance cost, original flue gas on it includes the casing and locates the casing advances, the export is advanced with clean flue gas, the export, the original flue gas import is linked together through a plurality of fluoroplastics heat exchange tubes and original flue gas export, be equipped with the roof in the casing that corresponds with the original flue gas import, be equipped with the limiting plate in the casing that corresponds with original flue gas export, the fluoroplastics heat exchange tube alternates to be fixed between roof and limiting plate, clean flue gas advances, on the casing of export intercommunication between roof and limiting plate, it has the position sleeve to peg graft in the fluoroplastics heat exchange tube mouth of pipe that corresponds with the original flue gas import, the lower extreme of position sleeve with fluoroplastics heat exchange tube expanded joint on the roof, the horizontal saliva of upper end mouth of position sleeve is put down and is outwards extended the overlap joint at the roof on the surface.

Description

Flue gas, flue gas heat-exchange unit structure
Technical field
This utility model relates to a kind of heat exchanger, particularly relates to a kind of good airproof performance, and safe and reliable, maintenance cost is low, service life length flue gas, flue gas heat-exchange unit structure.
Background technology
nullCommonly used swinging GGH in existing sulfur removal technology,But it is high generally to there is cost in this type of heat exchanger,Energy consumption is big,The shortcomings such as air leak rate of air curtain is high,And tubular type GGH is high owing to having heat transfer efficiency,Low power consumption and other advantages,The most day by day it is generalizable,Tubular type gas-gas heat exchanger (GGH) is a kind of heat transmission equipment utilizing high temperature fluid waste-heat cryogen,It is mainly made up of housing and some heat exchanger tubes,Its Central Plains exhaust gases passes is heat exchanger tube,Heat exchanger tube space outerpace is neat stress passage,Keep between heat exchanger tube and housing tube sheet being tightly connected,Existing heat exchanger tube is usually metal tube,But owing to flue gas often containing a large amount of poisonous highly corrosive material,Therefore can there is seepage under the corrosiveness of flue gas in system metallic heat exchanging tube after running a period of time,And the lower degradation of the heat exchange efficiency caused after metallic heat exchanging tube surface corrosion oxidation,Affect the service life of heat exchanger,Need for this periodically equipment to be carried out,Maintenance cost is high.
Chinese patent discloses a kind of flue gas heat exchange tube (CN202092503U), it includes inlet box, air outlet box, lower bellows and some heat exchanger tubes, inlet box, connected by heat exchanger tube between air outlet box and lower bellows, described inlet box and lower bellows at least one be provided with the deflector for uniform air flow distribution, this heat exchanger tube is by increasing deflector on the basis of tradition flue gas heat-exchange unit, in making heat exchanger, cold air flow is evenly distributed, realize increasing the purpose of heat exchange efficiency, but the system that equally exists heat exchanger tube after running a period of time can occur that top layer thickens under the corrosiveness of flue gas, heat exchange efficiency declines, time serious, localized seepage's phenomenon etc. occurs, not only affect using effect and the service life of heat exchanger, also need equipment is carried out routine cleaning, the problems such as maintenance cost is high.
Summary of the invention
This utility model mainly provides a kind of good airproof performance, safe and reliable, maintenance cost is low, service life length flue gas, flue gas heat-exchange unit structure, solving heat exchanger system heat exchanger tube after running a period of time present in prior art can occur that top layer thickens under the corrosiveness of flue gas, and heat exchange efficiency declines, time serious, localized seepage's phenomenon etc. occurs, not only affect using effect and the service life of heat exchanger, also need equipment is carried out routine cleaning, the technical problem that maintenance cost is high.
nullAbove-mentioned technical problem of the present utility model is mainly addressed by following technical proposals: a kind of flue gas、Flue gas heat-exchange unit structure,Including housing and the former gas approach be located on housing、Former exhanst gas outlet and neat stress import、Neat stress exports,Described former gas approach is connected with former exhanst gas outlet by some fluoroplastics heat exchanger tubes,It is provided with top board in the housing corresponding with former gas approach,It is provided with limiting plate in the housing corresponding with former exhanst gas outlet,Fluoroplastics heat exchanger tube is interspersed to be fixed between top board and limiting plate,In neat stress import and neat stress outlet housing between top board and limiting plate,It is connected to positioning sleeve in the fluoroplastics heat exchanger tube mouth of pipe interpolation corresponding with former gas approach,The lower port of positioning sleeve downwardly extends and by fluoroplastics heat exchanger tube expanded joint on top board,The upper port of positioning sleeve horizontally outward extends and is overlapped on top board surface.Fluoroplastics heat exchanger tube corrosion resistance and good stability, non-stick is strong, and therefore system longtime running all can keep higher heat transfer efficiency, stable and reliable operation, and maintenance cost is low, and service life is long;By grafting positioning sleeve in the upper port of fluoroplastics heat exchanger tube, in making, by positioning sleeve, the hole, heat exchanger tube location that fluoroplastics heat exchanger tube expanded joint is corresponding on top board, expanded joint is fixed, fixed form is simple, good airproof performance, simultaneously because the upper port of positioning sleeve horizontally outward extends on the outer surface being overlapped on top board, easy accessibility, and the downward sliding of fluoroplastics heat exchanger tube can be avoided, improve security reliability.
As preferably, the inner surface of described top board is provided with fluoroplastics inner liner, the outer surface of top board is provided with the outer lining of fluoroplastics, fluoroplastics inner liner carries over the outer ring surface of fluoroplastics heat exchanger tube and is downwardly extending clamping ring, clamping ring is clamped on the outer ring surface of fluoroplastics heat exchanger tube, the outer lining of fluoroplastics carries over positioning through hole on the heat exchanger tube on top board and is downwardly extending locating ring, and the port of fluoroplastics heat exchanger tube is folded in outer ring surface and the location interannular of positioning sleeve.By arranging fluoroplastics lining in the inner and outer surfaces of top board, preventing top board surface from suffering flue gas corrosion, owing to fluoroplastics have certain elasticity, inside and outside fluoroplastics lining compresses expanded joint by clamping ring and locating ring with fluoroplastics heat exchanger tube respectively and seals, easy for installation, good airproof performance.
As preferably, it is set with heat exchanger tube telescopic outside fluoroplastics heat exchanger tube corresponding inside described limiting plate, heat exchanger tube telescopic includes the cyclic spring body being sleeved on outside fluoroplastics heat exchanger tube, the lower end of cyclic spring body extends to position in hole under heat exchanger tube corresponding on limiting plate, on the inner ring surface of cyclic spring body, several O locating slots axially aligned, are embedded with O sealing ring in O locating slot.By arranging heat exchanger tube telescopic between limiting plate and fluoroplastics heat exchanger tube, can freely stretch in the hole, location along heat exchanger tube limiting plate when fluoroplastics heat exchanger tube expands with heat and contract with cold, and due to heat exchanger tube telescopic and heat exchanger tube relative limit plate synchronization telescope, therefore heat exchanger tube is made to maintain on setting position, and effectively supporting heat exchanger tube, it is to avoid heat exchanger tube is deformed.
As preferably, to being connected to expansion joint on housing corresponding above described limiting plate.By installing one section of expansion joint additional on housing corresponding above limiting plate; when heat exchanger tube expanded by heating overhead heat exchanger shell top and limiting plate outward expansion; expansion joint carries out synchro-draw; during heat exchanger tube cooling retraction, expansion joint synchronizes retraction; guarantee that heat exchanger tube freely stretches; stress rupture between minimizing parts, and effectively prevent the flexural deformation of heat exchanger tube, extend the service life of heat exchanger.
As preferably, described housing includes main casing and is docked at the lower posting of main casing lower port, and limiting plate is folded between main casing and lower posting.Lower posting is easy to the assembling combining installation and heat exchanger tube and limiting plate of main casing.
Housing can be cylinder, gengon shape, as preferably, described housing is the square barrel-like structure vertically placed, the upper open end of housing inwardly upwardly extends the former gas approach of formation, lower open end extends downwardly and inwardly the former exhanst gas outlet of formation, neat stress import is located close in the housing sidewall of former exhanst gas outlet, and neat stress outlet is located close in the housing sidewall of former gas approach.Square housing is easy to assembly, and owing to former flue-gas temperature is high, neat stress temperature is low, the most former flue gas from top to bottom, neat stress from bottom to top, former flue gas after heat exchange temperature decline backward lower outflow, neat stress after heat exchange temperature rise after flow upwards out, rational in infrastructure, heat exchange is abundant.
As preferably, described neat stress import is positioned on two sides that housing is relative with neat stress outlet, be docked and connected on housing corresponding below neat stress outlet the first mixing casing, and housing corresponding above neat stress import is docked and connected the second mixing casing.By arranging first, second mixing casing, make neat stress around the S-shaped flowing of heat exchanger tube, make heat exchange more abundant, improve heat exchange efficiency.
As preferably, the inner surface at described housing is provided with fluoroplastics interior lining panel, and fluoroplastics interior lining panel is fixed by a pin in inner walls, and is provided with anticorrosion pin sealing cap in the head cover of pin.By arranging fluoroplastics interior lining panel at the inner surface of housing, antiseptic property is good, arranges anticorrosion pin sealing cap, it is to avoid flue gas corrosion pin outside the pin fixing fluoroplastics interior lining panel, it is ensured that fluoroplastics interior lining panel is fixing reliable.
Therefore, flue gas of the present utility model, flue gas heat-exchange unit structure have an advantage that fluoroplastics heat exchanger tube corrosion resistance and good stability, and non-stick is strong, and therefore maintenance cost is low, and service life is long;By grafting positioning sleeve in the upper port of fluoroplastics heat exchanger tube, in making, by positioning sleeve, the hole, heat exchanger tube location that fluoroplastics heat exchanger tube expanded joint is corresponding on top board, expanded joint is fixed, and fixed form is simple and reliable, good airproof performance;By arranging spacing dop in the bottom of fluoroplastics heat exchanger tube, it is to avoid fluoroplastics heat exchanger tube bounces back to above limiting plate;When heat exchanger tube is heated outward expansion, the expansion joint synchro-draw that housing connects, decrease the stress rupture between parts, it is to avoid the flexural deformation of heat exchanger tube, extend the service life of heat exchanger;By arranging first, second mixing casing, make neat stress around the S-shaped flowing of heat exchanger tube, make heat exchange more abundant, improve heat exchange efficiency.
Accompanying drawing illustrates:
Fig. 1 is a kind of flue gas of this utility model, the structural representation of flue gas heat-exchange unit structure;
Fig. 2 is axial sectional view of the present utility model;
Fig. 3 is the fluoroplastics heat exchanger tube in this utility model and the top board attachment structure schematic diagram when the first embodiment;
Fig. 4 is the fluoroplastics heat exchanger tube in this utility model and the top board attachment structure schematic diagram when the second embodiment;
Fig. 5 is the fluoroplastics heat exchanger tube in this utility model and the top board attachment structure schematic diagram when the third embodiment;
Fig. 6 is the fluoroplastics heat exchanger tube in this utility model and the limiting plate attachment structure schematic diagram when the first embodiment;
Fig. 7 is the fluoroplastics heat exchanger tube in this utility model and the limiting plate attachment structure schematic diagram when the second embodiment;
Fig. 8 is the sectional view of heat exchanger tube telescopic shown in Fig. 7;
Fig. 9 is the fluoroplastics heat exchanger tube in this utility model and the limiting plate attachment structure schematic diagram when the third embodiment;
Figure 10 is the partial sectional view of this utility model middle shell.
Detailed description of the invention:
Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, a kind of flue gas of the present utility model, flue gas heat-exchange unit structure, housing 1 including the vertically side's of placement tubbiness, the upper open end of housing 1 inwardly upwardly extends the former gas approach 2 of formation, lower open end extends downwardly and inwardly the former exhanst gas outlet 3 of formation, housing 1 sidewall near former exhanst gas outlet 3 outwards extends inwardly to form neat stress import 4, relative with neat stress import 4 and near former gas approach 2 housing 1 sidewall outwards extends inwardly to form neat stress outlet 5, be docked and connected again on housing 1 corresponding below neat stress outlet 5 first mixing casing 15, be docked and connected on housing 1 corresponding above neat stress import 4 second mixing casing 16.nullAs shown in Figure 2,It is horizontally mounted one piece of top board 7 in housing 1 corresponding below former gas approach 2,It is horizontally mounted one piece of limiting plate 8 in housing 1 corresponding above former exhanst gas outlet 3,Top board 7 and limiting plate 8 is the most airtight is welded on housing 1 internal face,Vertical between top board 7 with limiting plate 8 it is interspersed with some fluoroplastics heat exchanger tubes 6,Fluoroplastics heat exchanger tube 6 is uniform on top board 7 and limiting plate 8,Former gas approach 2 thus be connected with former exhanst gas outlet 3 by fluoroplastics heat exchanger tube 6,On the inner surface of top board 7, lining is filled with fluoroplastics inner liner 71,On the outer surface of top board 7, lining is filled with the outer lining 72 of fluoroplastics,Fluoroplastics inner liner 71 carries over the outer ring surface of fluoroplastics heat exchanger tube 6 and is downwardly extending clamping ring 73,Clamping ring 73 is clamped on the outer ring surface of fluoroplastics heat exchanger tube 6,The outer lining 72 of fluoroplastics carries over positioning through hole 74 on the heat exchanger tube on top board 7 and is downwardly extending locating ring 75,It is plugged with positioning sleeve 9 in fluoroplastics heat exchanger tube 6 upper orifice corresponding with former gas approach 2,The lower port of positioning sleeve 9 downwardly extends and by the port expanded joint of fluoroplastics heat exchanger tube 6 between the outer ring surface and locating ring 75 of positioning sleeve 9,The upper port of positioning sleeve 9 horizontally outward extends and is overlapped on outer lining 72 surface of fluoroplastics above top board 7.nullAs shown in Figure 6,Housing 1 includes again main casing 13 and is docked at the lower posting 14 of main casing 13 lower port,Limiting plate 8 is folded between main casing 13 and lower posting 14,The lower end of fluoroplastics heat exchanger tube 6 extends in the lower posting 14 outside limiting plate 8,And corresponding fluoroplastics heat exchanger tube 6 bottom integral type is connected to prevent fluoroplastics heat exchanger tube 6 from bouncing back to the spacing dop 61 inside limiting plate 8 below limiting plate 8,As shown in Figure 7 and Figure 8,Fluoroplastics heat exchanger tube 6 overcoat corresponding above limiting plate 8 is filled with heat exchanger tube telescopic 10,Heat exchanger tube telescopic 10 includes the cyclic spring body 101 being sleeved on outside fluoroplastics heat exchanger tube 6,Position in hole 81 under the heat exchanger tube that the lower end of cyclic spring body 101 extends and expanded joint is corresponding on limiting plate 8,The inner ring surface of cyclic spring body 101 is spaced substantially equidistant five O locating slots 102 vertically,O sealing ring 103 it is embedded with in O locating slot 102,Cyclic spring body 101 and fluoroplastics heat exchanger tube 6 is made to keep sealing by O sealing ring 103,As shown in Figure 9,To being connected to expansion joint 12 on main casing 13 corresponding above limiting plate 8,The upper port of expansion joint 12 lower port to then main casing 13,Limiting plate 8 is hold between the lower port of expansion joint 12 and the upper port of lower posting 14.As shown in Figure 10, in order to avoid housing 1 inner surface suffers flue gas corrosion, inner surface at housing 1 lays fluoroplastics interior lining panel 17, fluoroplastics interior lining panel 17 is fixed on housing 1 inwall by pin 18, and the anticorrosion pin sealing cap 19 of fluoroplastics material it is provided with in the head cover of pin 18, anticorrosion pin sealing cap 19 boxing is on fluoroplastics interior lining panel 17.
Embodiment 2:
As shown in Figure 4, the most uniform three annular grooves 76 on positioning through hole 74 inner ring surface on heat exchanger tube corresponding between locating ring 75 with fluoroplastics inner liner 71 and with positioning sleeve 9, at the embedded sealing ring 11 that is filled with of annular groove 76, sealing ring 11 is clamped between the outer ring surface of fluoroplastics heat exchanger tube 6 and annular groove 76.Remainder is identical with embodiment 1.
Embodiment 3:
As it is shown in figure 5, positioning through hole 74 inner ring surface level extends internally and makes fluoroplastics heat exchanger tube 6 swelling on the outer ring surface of positioning sleeve 9 on the heat exchanger tube corresponding with positioning sleeve 9 bottom.Remainder is identical with embodiment 1.
Specific embodiment described herein is only explanation for example to design of the present utility model.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by this utility model person of ordinary skill in the field, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (8)

  1. null1. a flue gas、Flue gas heat-exchange unit structure,Including housing (1) and the former gas approach (2) be located on housing (1)、Former exhanst gas outlet (3) and neat stress import (4)、Neat stress outlet (5),It is characterized in that: described former gas approach (2) is connected with former exhanst gas outlet (3) by some fluoroplastics heat exchanger tubes (6),It is provided with top board (7) in the housing (1) corresponding with former gas approach (2),It is provided with limiting plate (8) in the housing (1) corresponding with former exhanst gas outlet (3),Fluoroplastics heat exchanger tube (6) is interspersed to be fixed between top board (7) and limiting plate (8),Neat stress import (4) connects on the housing (1) between top board (7) and limiting plate (8) with neat stress outlet (5),It is plugged with positioning sleeve (9) in fluoroplastics heat exchanger tube (6) mouth of pipe corresponding with former gas approach (2),The lower port of positioning sleeve (9) downwardly extends and by fluoroplastics heat exchanger tube (6) expanded joint on top board (7),The upper port of positioning sleeve (9) horizontally outward extends and is overlapped on top board (7) surface.
  2. Flue gas the most according to claim 1, flue gas heat-exchange unit structure, it is characterized in that: on the inner surface of described top board (7), be provided with fluoroplastics inner liner (71), the outer surface of top board (7) is provided with the outer lining (72) of fluoroplastics, fluoroplastics inner liner (71) carries over the outer ring surface of fluoroplastics heat exchanger tube (6) and is downwardly extending clamping ring (73), clamping ring (73) is clamped on the outer ring surface of fluoroplastics heat exchanger tube (6), the outer lining (72) of fluoroplastics carries over positioning through hole (74) on the heat exchanger tube on top board (7) and is downwardly extending locating ring (75), the port of fluoroplastics heat exchanger tube (6) is folded between the outer ring surface of positioning sleeve (9) and locating ring (75).
  3. Flue gas the most according to claim 1 and 2, flue gas heat-exchange unit structure, it is characterized in that: outside the fluoroplastics heat exchanger tube (6) that described limiting plate (8) inner side is corresponding, be set with heat exchanger tube telescopic (10), heat exchanger tube telescopic (10) includes being sleeved on fluoroplastics heat exchanger tube (6) cyclic spring body (101) outward, the lower end of cyclic spring body (101) extends to position in hole (81) under the upper corresponding heat exchanger tube of limiting plate (8), several O locating slots (102) axially aligned on the inner ring surface of cyclic spring body (101), O sealing ring (103) it is embedded with in O locating slot (102).
  4. Flue gas the most according to claim 1 and 2, flue gas heat-exchange unit structure, it is characterised in that: to being connected to expansion joint (12) on the housing (1) that described limiting plate (8) top is corresponding.
  5. Flue gas the most according to claim 1 and 2, flue gas heat-exchange unit structure, it is characterized in that: described housing (1) includes main casing (13) and is docked at the lower posting (14) of main casing (13) lower port, and limiting plate (8) is folded between main casing (13) and lower posting (14).
  6. Flue gas the most according to claim 1 and 2, flue gas heat-exchange unit structure, it is characterized in that: described housing (1) is the square barrel-like structure vertically placed, the upper open end of housing (1) inwardly upwardly extends the former gas approach of formation (2), lower open end extends downwardly and inwardly the former exhanst gas outlet of formation (3), neat stress import (4) is located close on housing (1) sidewall of former exhanst gas outlet (3), and neat stress outlet (5) is located close on housing (1) sidewall of former gas approach (2).
  7. Flue gas the most according to claim 1 and 2, flue gas heat-exchange unit structure, it is characterized in that: described neat stress import (4) is positioned on two sides that housing (1) is relative with neat stress outlet (5), be docked and connected on the housing (1) that neat stress outlet (5) lower section is corresponding first mixing casing (15), and be docked and connected on the housing (1) that neat stress import (4) top is corresponding second mixing casing (16).
  8. Flue gas the most according to claim 1 and 2, flue gas heat-exchange unit structure, it is characterized in that: the inner surface at described housing (1) is provided with fluoroplastics interior lining panel (17), fluoroplastics interior lining panel (17) is fixed on housing (1) inwall by pin (18), and is provided with anticorrosion pin sealing cap (19) in the head cover of pin (18).
CN201620101062.6U 2016-01-29 2016-01-29 Flue gas, Gas gas heater structure CN205537230U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201620101062.6U CN205537230U (en) 2016-01-29 2016-01-29 Flue gas, Gas gas heater structure

Publications (1)

Publication Number Publication Date
CN205537230U true CN205537230U (en) 2016-08-31

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CN201620101062.6U CN205537230U (en) 2016-01-29 2016-01-29 Flue gas, Gas gas heater structure

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105674774A (en) * 2016-01-29 2016-06-15 浙江东氟塑料科技有限公司 Smoke-smoke heat exchanger
CN106610248A (en) * 2016-12-29 2017-05-03 湖州鼎诚环保科技有限公司 Lower plate sealing structure of gas-gas heat exchanger
CN108362141A (en) * 2018-05-21 2018-08-03 湖南正明环保股份有限公司 A kind of efficient white-smoke-removing straight pipe type GGH smoke heat replacing devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105674774A (en) * 2016-01-29 2016-06-15 浙江东氟塑料科技有限公司 Smoke-smoke heat exchanger
CN106610248A (en) * 2016-12-29 2017-05-03 湖州鼎诚环保科技有限公司 Lower plate sealing structure of gas-gas heat exchanger
CN108362141A (en) * 2018-05-21 2018-08-03 湖南正明环保股份有限公司 A kind of efficient white-smoke-removing straight pipe type GGH smoke heat replacing devices

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