CN205580248U - Pinpoint and easily anti deposition, heat exchanger that acidproof dew corrodes of edge leakage - Google Patents
Pinpoint and easily anti deposition, heat exchanger that acidproof dew corrodes of edge leakage Download PDFInfo
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- CN205580248U CN205580248U CN201620134993.6U CN201620134993U CN205580248U CN 205580248 U CN205580248 U CN 205580248U CN 201620134993 U CN201620134993 U CN 201620134993U CN 205580248 U CN205580248 U CN 205580248U
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Abstract
The utility model discloses a pinpoint and easily anti deposition, heat exchanger that acidproof dew corrodes of edge leakage, including the support frame, connect three wings connector on the support frame, connect 8 blocks between adjacent three wings connector and pass the fluoroplastics heat exchange tube that 8 blocks formed netted heat transfer bars through the couple. Characteristic according to the fluoroplastics pipe adopts three wings connector and 8 blocks rational in infrastructure simple to carry out fixed position, the convenient installation that complicated net bars structure can be quick is managed to fluoroplastics, the location is accurate convenient, it fixes in the positioning network check bent the interlude to have overcome the current logical turn the corner of some fluoroplastics pipes simultaneously, avoid more bending to buckle and fixed a position the installation, when hot flue gas constantly passes through, also can not produce to buckle after fluoroplastics soften reins in the trace, the circulation of the intraductal cooling water of fluoroplastics is smooth and easy, high heat exchanger efficiency, the life of fluoroplastics pipes has been prolonged.
Description
Technical field
This utility model belongs to field of heat exchange equipment, be specifically related to a kind of be accurately positioned and be prone to the anti-dust stratification of side leakage, acidproof dew corrosion heat exchanger.
Background technology
On heat power plant boiler or other Industrial Boilers, it is provided with the tail gas waste heat recovering system carrying out flue gas waste heat recovery, in tail gas waste heat recovering system, it is usually and flue gas heat-exchange unit is installed in wet flue gas desulfurization tower porch, by flue gas heat-exchange unit Mist heat recovering.Flue gas heat-exchange unit is as the nucleus equipment of flue gas waste heat recovery system, it is resolved that the performance of residual neat recovering system.Flue gas waste heat recovery significant, this is because the waste heat of flue gas both can be used by flue gas waste heat recovery, can make again the temperature of entrance fume desulfurizing tower reduce, and reduces the evaporation to the moisture in desulfurization sprayed slurry, drops low water consumption.
But, owing to the Fossil fuels such as fire coal containing the compositions such as sulfur, so in heat power plant boiler or other Industrial Boilers during burning, the flue gas containing corrosive gas such as sulfur dioxide, sulfur trioxide, hydrogen chloride, fluohydric acid gas can be produced, especially when exhaust gas temperature is less than flue gas acid dew point, above corrosive gas can condense concentration, produces acid dew, and its corrosive power can be higher.So in order to protect upstream device and flue gas heat-exchange unit not to be corroded; when boiler design; must assure that flue-gas temperature more than acid dew-point temperature (typically between 110-140 DEG C); this is the irreducible main cause of exhaust gas temperature; also amount of heat is made to pass through fume emission to air; cause can only recovered flue gas part of waste heat, economic effect not significantly shortcoming.
Heat exchanger tube in existing flue gas heat-exchange unit is usually and uses common stainless steel metal tube material, and it has some shortcoming following.1, owing to heat exchanging pipe wall temperature is far below flue gas acid dew point, so the wall in heat exchanger cryogenic tube bundle can produce acid dew, cold end corrosion is caused；2, the flue gas heat-exchange unit of existing common stainless steel metal tube material can not realize the low-temperature heat exchange of flue gas and utilize, i.e. if it is desired to as far as possible many recovered flue gas heats, it is necessary for reducing flue-gas temperature as far as possible, and meanwhile, the flue gas heat reclaimed is the most, then the cold end corrosion phenomenon on the heat exchanger tube of stainless steel metal tubing matter will be the most serious, the life-span making heat exchanger tube is difficult to ensure that, that is, owing to being limited by cold end corrosion, fume afterheat can not be absorbed too much by the flue gas heat-exchange unit of existing common stainless steel metal tube material, must ensure that flue-gas temperature is more than acid dew point, part of waste heat in flue gas can only be absorbed
；3, containing a certain amount of flue dust in the flue gas of the boiler generation using the Fossil fuels such as fire coal, acid dew contacts with flue dust, scale problems is the most inevitable, specifically, it is exactly when cigarette temperature drop is low, acid is exposed now, in flue gas, flue dust combines with acid dew and generates hard scale layer, it is attached to heat exchanger tube surface, and tube bundle support plate waits for death Angle Position, requirement due to heat exchange area, tube bank is made to arrange closely, even if using the measures such as steam blowing, also it is difficult to thoroughly clean out, dirt layer can be increasingly thicker, heat exchanger gas collateral resistance is finally made to exceed design load, even cause compressor emergency shutdown.
Heat exchanger tube in existing flue gas heat-exchange unit also has some to have employed the heat exchanger tube being made up completely of fluoroplastics material, the shortcoming of this flue gas heat-exchange unit is that the fluorine plastic tube in flue gas heat-exchange unit is for flexible, under the impact flow of flue gas, easily produce shake and deform, not only it is very easy to damage, and heat exchange efficiency also can be deteriorated therewith.
In addition, the fluorine plastic tube structure of existing flue gas heat-exchange unit is not reasonable, fluorine plastic tube is interspersed in locating by bending and is fixed, on the one hand the bending torsion that bending produces affects the installation effectiveness of fluorine plastic tube and reduces service life, another is convenient when heat smoke constantly passes through, and fluoroplastics soften to be easily generated to bend strangles trace, and the circulation causing fluorine plastic tube inner cooling water is the most smooth, easily block time serious, reduce heat exchange efficiency.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of fixing simple and convenient, length in service life, good effect of heat exchange, be accurately positioned and be prone to the anti-dust stratification of side leakage, the heat exchanger of acidproof dew corrosion.
To achieve these goals, the technical scheme that this utility model is taked is as follows:
A kind of it is accurately positioned and is prone to the anti-dust stratification of side leakage, the heat exchanger of acidproof dew corrosion, the three wings adapter including bracing frame, being connected on bracing frame, be connected on 8 blocks between adjacent three wings adapter by hook connecting and form the fluoroplastics heat exchanger tube of netted heat exchange grid through 8 blocks.
Further improving as this utility model, described 8 blocks include block body, are arranged on block body end face the fluoroplastics heat exchanger tube positioning through hole passed for fluoroplastics heat exchanger tube and are arranged on the positioning through hole that block body side passes through for hook.
Further improving as this utility model, described block body side is provided with arc groove；Described positioning through hole is positioned at arc groove.
Further improving as this utility model, support frame as described above includes the angle steel of vertical direction and is connected laterally at the strip steel between adjacent angle steel.
Further improving as this utility model, described three wings adapter includes the metal inner pipe that two ends are fixed on strip steel and the fluoroplastics outer tube being sleeved on metal inner pipe；
The described both sides of fluoroplastics outer tube and the outer wall of top are provided with three fins, and fin has installing hole.
Further improve as this utility model, support frame as described above is additionally provided with the hollow drag link of installing hole on fin above three wings adapter.
Further improving as this utility model, support frame as described above upper end is provided with the water return outlet discharged after cooling water enters the water inlet of fluoroplastics heat exchanger tube, cooling water heat exchange and cleans the mouth of a river.
Further improving as this utility model, one end of described hollow drag link is connected to and cleans on the wash water pipe that the mouth of a river communicates.
Further improve as this utility model, described hollow drag link sidewall is provided with the spray orifice that rinse water is sprayed onto fluoroplastics heat exchange pipe external surface.
Further improving as this utility model, described 8 blocks are politef material.
Compared with prior art, having the beneficial effect that acquired by this utility model:
This utility model be a kind of be capable of withstanding cold end corrosion, antiscale ability strong, can the cigarette air-water indirect heat exchanger of long-term safety reliability service, there is management rational in infrastructure, easily operated, corrosion resistant, the feature of good antiscale property.Heat exchanger tube in flue gas heat-exchange unit uses fluoroplastics material, can effectively solve etching problem and the scale problems of flue gas heat-exchange unit, and high efficiente callback fume afterheat, saves the energy.In addition, heat exchanger tube in flue gas heat-exchange unit uses fluoroplastics material, achieve low-temperature heat exchange, namely can make flue gas waste heat recovery system while the Mist heat recovering of maximum possible, weaken the cold end corrosion phenomenon of heat exchanger tube, in other words, it is simply that while having reached maximum energy-saving effect, the life-span making heat exchanger tube is ensured, makes flue gas heat-exchange unit reliability be greatly improved.Characteristic according to fluorine plastic tube uses simple three wings adapter rational in infrastructure and 8 blocks to be fixed location, the complicated grid structure of fluorine plastic tube can quick convenient installation, accurate positioning is convenient, overcome more existing fluorine plastic tubes to be interspersed in locating by bending and be fixed simultaneously, avoid more bending bending location and installation, when heat smoke constantly passes through, fluoroplastics also will not produce bending after softening and strangle trace, the circulation of fluorine plastic tube inner cooling water is smooth and easy, improve heat exchange efficiency, extend the service life of fluorine plastic tube；Bracing frame uses the angle steel of vertical direction and the strip steel that is connected laterally between adjacent angle steel to form skeleton, angle steel and strip steel use extensively, the heat exchanger bracing frame of different size specification can be made as required, and it is coated with fluoroplastics film at angle steel and strip steel outer surface, favorable anti-corrosion effect, increases the rotproofness of skeleton；8 block body side are provided with arc groove, and positioning through hole is positioned at arc groove, and after adjacent 8 block ends are adjacent to location, two arc grooves form ash leakage hole, it is to avoid changing thermogenetic ash accumulation in flue affects heat transfer effect；The hollow drag link of installing hole on fin above three wings adapter it is additionally provided with on bracing frame, hollow drag link connection wash water pipe also arranges spray orifice at its outer wall, on the one hand three wings adapter is carried out second positioning, ensure that connect stablizes, on the other hand rinse water can be sprayed onto fluoroplastics heat exchange pipe external surface, clean the dirt of fluoroplastics heat exchange pipe external surface attachment, it is ensured that the cleaning of fluoroplastics heat exchanger tube, it is ensured that high efficient heat exchanging.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the structural representation of this utility model 8 block；
The structural representation that accompanying drawing 3 is linked up with for this utility model；
Accompanying drawing 4 is the structural representation of this utility model three wings；
Accompanying drawing 5 is the structural representation of this utility model hollow drag link；
Accompanying drawing 6 is this utility model A portion structure for amplifying schematic diagram.
In the accompanying drawings:
2 block bodies, 3 fluoroplastics heat exchanger tube positioning through hole, 4 positioning through hole, 5 arc grooves, 6 angle steel, 7 strip steel, 8 metal inner pipes, 9 fluoroplastics outer tubes, 10 fins, 11 installing holes, 12 hollow drag links, 13 water inlets, 14 water return outlets, the 15 cleaning mouths of a river, 16 wash water pipes, 17 spray orifices, 18 hooks.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is carried out further details of narration.
As shown in figures 1-6, a kind of it is accurately positioned and is prone to the anti-dust stratification of side leakage, the heat exchanger of acidproof dew corrosion, the three wings adapter including bracing frame, being connected on bracing frame, by 8 blocks that are connected between adjacent three wings adapter of hook 18 and the fluoroplastics heat exchanger tube that forms netted heat exchange grid through 8 blocks.Described 8 blocks include block body 2, are arranged on block body 2 end face the fluoroplastics heat exchanger tube positioning through hole 3 passed for fluoroplastics heat exchanger tube and are arranged on the positioning through hole 4 that block body 2 sidepiece passes through for hook 18, two fluoroplastics heat exchanger tube positioning through hole 3 and a positioning through hole 4 are set on each 8 blocks, two fluoroplastics heat exchanger tube positioning through hole 3 lay respectively at the edge of block body 2 end face, ensure that fluorine plastic tube leaves certain flue gas by gap between interting, reach sufficient heat transfer effect and to ensure to walk cigarette smooth and easy.Described block body 2 sidepiece is provided with arc groove 5, arc groove 5 is positioned at block body 2 sidepiece centre position, skew is avoided to rock, it is easy to keep stable, described positioning through hole 4 is positioned in the middle part of arc groove 5, positioning through hole 4 is not connected with fluoroplastics heat exchanger tube positioning through hole 3,8 blocks by hook 18 be arranged on three wings adapter and fluoroplastics heat exchanger tube intert be arranged on positioning through hole 3 in be two steps, separate operations is easily installed.Support frame as described above includes the angle steel 6 of vertical direction and is connected laterally at the strip steel 7 between adjacent angle steel 6, it is possible to select other common square tube, steel pipe or steel plate.Described three wings adapter includes the metal inner pipe 8 that two ends are fixed on strip steel 7 and the fluoroplastics outer tube 9 being sleeved on metal inner pipe 8, and metal inner pipe 8 plays sizing supporting role, and fluoroplastics outer tube 9 is prevented from the corrosion of acidic flue gas.The described both sides of fluoroplastics outer tube 9 and the outer wall of top are provided with three fins 10, and fin 10 has installing hole 11, it is possible to coordinate installation, hook 18 to can be selected for end and be provided with the tinsel of crotch with hook 18.It is additionally provided with the hollow drag link 12 of installing hole 11 on fin 10 above three wings adapter on support frame as described above, three wings adapter is carried out second positioning, it is ensured that stablizing of connection.Support frame as described above upper end is provided with the water return outlet 14 discharged after cooling water enters the water inlet 13 of fluoroplastics heat exchanger tube 1, cooling water heat exchange and cleans the mouth of a river 15, and water inlet 13, fluoroplastics heat exchanger tube and water return outlet 14 form the cooling circuit of cooling water.One end of described hollow drag link 12 is connected to and cleans on the wash water pipe 16 that the mouth of a river 15 communicates, and wash water pipe 16 is positioned at the side of bracing frame, and some hollow drag links 12 are pooled at wash water pipe 16 be formed flowing water path.It is provided with, on described hollow drag link 12 sidewall, the spray orifice 17 that rinse water is sprayed onto fluoroplastics heat exchange pipe external surface.Described 8 blocks are politef (PTFE, F4) material, have a good anticorrosive property, and the performance that rises with the contracting of fluoroplastics heat exchanger tube 1 after being heated in flue is consistent, it is ensured that the position location of fluoroplastics heat exchanger tube.
This utility model be a kind of be capable of withstanding cold end corrosion, antiscale ability strong, can the cigarette air-water indirect heat exchanger of long-term safety reliability service, there is management rational in infrastructure, easily operated, corrosion resistant, the feature of good antiscale property.Heat exchanger tube in flue gas heat-exchange unit uses fluoroplastics material, can effectively solve etching problem and the scale problems of flue gas heat-exchange unit, and high efficiente callback fume afterheat, saves the energy.In addition, heat exchanger tube in flue gas heat-exchange unit uses fluoroplastics material, achieve low-temperature heat exchange, namely can make flue gas waste heat recovery system while the Mist heat recovering of maximum possible, weaken the cold end corrosion phenomenon of heat exchanger tube, in other words, it is simply that while having reached maximum energy-saving effect, the life-span making heat exchanger tube is ensured, makes flue gas heat-exchange unit reliability be greatly improved.Characteristic according to fluorine plastic tube uses simple three wings adapter rational in infrastructure and 8 blocks to be fixed location, the complicated grid structure that fluoroplastics heat exchanger tube 1 is formed can quick convenient installation, accurate positioning is convenient, overcome more existing fluoroplastics heat exchanger tube 1 to be interspersed in locating by bending and be fixed simultaneously, avoid more bending bending location and installation, when heat smoke constantly passes through, fluoroplastics also will not produce bending after softening and strangle trace, the circulation of fluoroplastics heat exchanger tube 1 inner cooling water is smooth and easy, improve heat exchange efficiency, extend the service life of fluoroplastics heat exchanger tube 1；Bracing frame uses the angle steel 6 of vertical direction and the strip steel 7 that is connected laterally between adjacent angle steel 6 to form support frame, angle steel 6 and strip steel 7 use extensively, the heat exchanger bracing frame of different size specification can be made as required, and it is coated with fluoroplastics film at angle steel 6 and strip steel 7 outer surface, favorable anti-corrosion effect, increases the rotproofness of skeleton；8 block body side are provided with arc groove 5, and positioning through hole is positioned at arc groove 5, and after adjacent 8 block ends are adjacent to location, two arc grooves 5 form ash leakage hole, it is to avoid changing thermogenetic ash accumulation in flue affects heat transfer effect；The hollow drag link 12 of installing hole 11 on fin 10 above three wings adapter it is additionally provided with on bracing frame, hollow drag link 12 connects wash water pipe 16 and arranges spray orifice 17 at its outer wall, on the one hand three wings adapter is carried out second positioning, ensure that connect stablizes, on the other hand rinse water can be sprayed onto fluoroplastics heat exchanger tube 1 outer surface, clean the dirt of fluoroplastics heat exchanger tube 1 outer surface attachment, it is ensured that the cleaning of fluoroplastics heat exchanger tube, it is ensured that high efficient heat exchanging.
The above embodiment is only preferred embodiment of the present utility model, and the not feasible enforcement of this utility model is exhaustive.For persons skilled in the art, any obvious change done to it on the premise of without departing substantially from this utility model principle and spirit, within all should being contemplated as falling with claims of the present utility model.
Claims (10)
1. one kind is accurately positioned and is prone to the anti-dust stratification of side leakage, the heat exchanger of acidproof dew corrosion, it is characterised in that: it includes bracing frame, the three wings adapter that is connected on bracing frame, be connected to 8 blocks between adjacent three wings adapter by hook (18) and form the fluoroplastics heat exchanger tube of netted heat exchange grid through 8 blocks.
The most according to claim 1 a kind of it is accurately positioned and is prone to the anti-dust stratification of side leakage, the heat exchanger of acidproof dew corrosion, it is characterised in that: described 8 blocks include block body (2), are arranged on block body (2) end face fluoroplastics heat exchanger tube positioning through hole (3) passed for fluoroplastics heat exchanger tube and are arranged on the positioning through hole (4) that block body (2) sidepiece passes through for hook (18).
The most according to claim 2 a kind of be accurately positioned and be prone to the anti-dust stratification of side leakage, acidproof dew corrosion heat exchanger, it is characterised in that: described block body side is provided with arc groove (5)；Described positioning through hole (4) is positioned at arc groove (5).
4. it is accurately positioned and is prone to the anti-dust stratification of side leakage, the heat exchanger of acidproof dew corrosion according to a kind of described in any one of claim 1-3, it is characterised in that: angle steel (6) that support frame as described above includes vertical direction and the strip steel (7) being connected laterally between adjacent angle steel (6).
The most according to claim 4 a kind of be accurately positioned and be prone to the anti-dust stratification of side leakage, acidproof dew corrosion heat exchanger, it is characterised in that: described three wings adapter includes the metal inner pipe (8) that two ends are fixed on strip steel (7) and the fluoroplastics outer tube (9) being sleeved on metal inner pipe (8)；
The described both sides of fluoroplastics outer tube (9) and the outer wall of top are provided with three fins (10), and fin (10) has installing hole (11).
The most according to claim 5 a kind of it is accurately positioned and is prone to the anti-dust stratification of side leakage, the heat exchanger of acidproof dew corrosion, it is characterised in that: it is additionally provided with the hollow drag link (12) through the upper installing hole (11) of fin (10) above three wings adapter on support frame as described above.
The most according to claim 6 a kind of be accurately positioned and be prone to the anti-dust stratification of side leakage, acidproof dew corrosion heat exchanger, it is characterised in that: support frame as described above upper end be provided with cooling water enter fluoroplastics heat exchanger tube water inlet (13), cooling water heat exchange after discharge water return outlet (14) and clean the mouth of a river (15).
The most according to claim 7 a kind of be accurately positioned and be prone to the anti-dust stratification of side leakage, acidproof dew corrosion heat exchanger, it is characterised in that: one end of described hollow drag link (12) is connected to and cleans on the wash water pipe (16) that the mouth of a river (15) communicates.
The most according to claim 8 a kind of be accurately positioned and be prone to the anti-dust stratification of side leakage, acidproof dew corrosion heat exchanger, it is characterised in that: be provided with, on described hollow drag link (12) sidewall, the spray orifice (17) that rinse water is sprayed onto fluoroplastics heat exchange pipe external surface.
The most according to claim 9 a kind of be accurately positioned and be prone to the anti-dust stratification of side leakage, acidproof dew corrosion heat exchanger, it is characterised in that: described 8 blocks are politef material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620134993.6U CN205580248U (en) | 2016-02-23 | 2016-02-23 | Pinpoint and easily anti deposition, heat exchanger that acidproof dew corrodes of edge leakage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620134993.6U CN205580248U (en) | 2016-02-23 | 2016-02-23 | Pinpoint and easily anti deposition, heat exchanger that acidproof dew corrodes of edge leakage |
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| CN205580248U true CN205580248U (en) | 2016-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571350A (en) * | 2016-02-23 | 2016-05-11 | 河北远征环保科技有限公司 | Ash deposition resistance and acid dew corrosion resistance heat exchanger accurate in positioning and easy for side leakage |
-
2016
- 2016-02-23 CN CN201620134993.6U patent/CN205580248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571350A (en) * | 2016-02-23 | 2016-05-11 | 河北远征环保科技有限公司 | Ash deposition resistance and acid dew corrosion resistance heat exchanger accurate in positioning and easy for side leakage |
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