CN201407634Y - Heat recovery boiler with soot deposit prevention and corrosion-resistant structure - Google Patents
Heat recovery boiler with soot deposit prevention and corrosion-resistant structure Download PDFInfo
- Publication number
- CN201407634Y CN201407634Y CN200820124768XU CN200820124768U CN201407634Y CN 201407634 Y CN201407634 Y CN 201407634Y CN 200820124768X U CN200820124768X U CN 200820124768XU CN 200820124768 U CN200820124768 U CN 200820124768U CN 201407634 Y CN201407634 Y CN 201407634Y
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- Prior art keywords
- cooling wall
- water
- boiler
- heater
- corrosion
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- 230000007797 corrosion Effects 0.000 title claims abstract description 18
- 238000005260 corrosion Methods 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title abstract 4
- 239000004071 soot Substances 0.000 title abstract 3
- 230000002265 prevention Effects 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 claims abstract description 62
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003546 flue gas Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 15
- 239000002918 waste heat Substances 0.000 claims description 34
- 238000005192 partition Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 description 7
- 239000002699 waste material Substances 0.000 description 6
- 238000004939 coking Methods 0.000 description 5
- 238000013517 stratification Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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Abstract
The utility model provides a heat recovery boiler with a soot deposit prevention and corrosion-resistant structure, and is characterized in that a cavity structure which is surrounded by an outer layer water cooling wall is served as the boiler body of the heat recovery boiler; a flue gas inlet and a flue gas outlet are formed on the boiler body; the boiler barrel is respectively communicated withthe outer layer water cooling wall through a downtake pipe and a gas guide pipe; at least a layer of partitioned water cooling wall is arranged in the boiler body in a staggered distribution manner;at least two flue gas passages with return passages are formed in the boiler body to enable flue gas flowing in the boiler body to flow through the return routes; and the partitioned water cooling wall is communicated with an outer layer water cooling wall. The heat recovery boiler adopts the full-film type water cooling wall structure and the partitioned water cooling wall arranged in the boilerbody, so that the heat exchange efficiency of the boiler is increased, and the leak tightness of the boiler firebox is enhanced. The gas corrosion and soot deposit influences are reduced by setting reasonable steam pressure and steam temperature.
Description
Technical field
The utility model relates to a kind of waste heat boiler, and particularly a kind of waste heat boiler at the high-temperature flue gas that is produced after the incineration of waste, this boiler have accumulatingdust, corrosion resistant characteristic especially, belong to the waste treatment technique field.
Background technology
After incineration of waste is handled, produce high-temperature flue gas,, reduce flue-gas temperature simultaneously, guarantee the use of follow-up equipment, waste heat boiler need be set this high-temperature flue gas is carried out heat exchange in order to reclaim heat energy.
Present waste heat boiler adopts the form of convection bank more.So-called convection bank form, the heat exchanging water pipe is vertical with the flow of flue gas direction, and close pitch tube bank arranges that high-temperature flue gas is when flowing through water pipe, and the heat of flue gas is absorbed by the water in the water pipe, thereby has reduced flue-gas temperature, has heated the water in the water pipe, realizes heat exchange.But because the viscosity of the dust granules in the high-temperature flue gas that incineration of waste produces is big, fusing point is low, when flue gas is restrained by close pitch, its sticky particle is easy to attached on the tube outer wall, time one is long, will form a thick layer of coking layer, influence restrain heat exchange efficiency, and then influence passing through of flue gas.In a single day tube bank the coking layer occurs, not only influence the boiler heat exchange, and need blowing out to clear up.Because the adhesive ability of this coking layer on tube wall is very strong, remove very difficulty, in reset procedure, tend to damage tube bank.
In view of existing problem in the above-mentioned existing waste heat boiler, we are necessary to design a kind of waste heat boiler with accumulatingdust, corrosion-resistant structure.
Summary of the invention
The purpose of this utility model is to solve the problems of the prior art, and a kind of waste heat boiler at the high-temperature flue gas that is produced after the incineration of waste is provided, the heat exchange efficiency height of this boiler, and have accumulatingdust, corrosion resistant structure.
The purpose of this utility model is achieved by following technical proposals:
A kind of waste heat boiler with accumulatingdust, corrosion-resistant structure is characterized in that: comprise drum, down-comer, wireway, outer water-cooling wall, ash discharge mechanism and at least one deck cut off water-cooling wall;
Described outer water-cooling wall surrounds cavity body structure, as the body of heater of waste heat boiler; On this body of heater, offer gas approach and exhanst gas outlet relatively;
Described drum is communicated with described outer water-cooling wall by described down-comer and wireway respectively;
Described one deck at least cuts off water-cooling wall and is arranged in this body of heater; The setting that is interspersed in body of heater of this partition water-cooling wall forms the exhaust gases passes at least two loops in body of heater, make the flue gas that flows in body of heater with the path flows of turning back; This partition water-cooling wall is connected with this skin water-cooling wall;
Described ash discharge mechanism is arranged at this bottom of furnace body.
Described outer water-cooling wall adopts full film water cold wall structure with the partition water-cooling wall.
Also be provided with steelframe with described outer water-cooling wall is rigidly connected in the described body of heater outside, in order to fix and to carry whole boiler.
On described outer water-cooling wall, also be provided with some cleaning doors.
Also be provided with some manholes in described outer water-cooling wall bottom.
The beneficial effects of the utility model are:
1, this waste heat boiler is at its outer water-cooling wall and what cut off that water-cooling wall all adopts is full film water cold wall structure.This makes high-temperature flue gas can directly contact with water-cooling wall in stove, and is pure radiant type heat exchange, has improved the boiler heat exchange efficiency greatly, has improved the sealing property of burner hearth simultaneously.
2, this waste heat boiler makes the multiloop exhaust gases passes of formation in the body of heater by the partition water-cooling wall is set in body of heater.Flue gas heavy in section passage of flowing through, flowing velocity is slowed down, and has weakened the degree of tube wall dust stratification and has been beneficial to removing, has eliminated the possibility of dust stratification coking and blocking flue simultaneously.
Description of drawings
Fig. 1 is the front section view of waste heat boiler;
Fig. 2 is the side sectional view of waste heat boiler.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Problems such as previously mentioned, relatively there is the easy coking of tube bank in the waste heat boiler of convection bank form commonly used at present, and interbank easy dust stratification stops up, tube bank is perishable.This mainly is because the waste heat boiler of this form adopts the sweep of gases tube bank to realize heat exchange, and the channel space that flue gas is flowed through is less relatively, and flue gas flow rate is very fast, is easy to dust and adheres to and deposit.Based on above-mentioned analysis, the designed waste heat boiler of this patent promptly is to make every effort to reduce flue gas flow rate by improving the channel space that flue gas is flowed through, and adopts major path to solve the above-mentioned problem that proposes.
Fig. 1, Fig. 2 are respectively the front section view and the side sectional view of the designed waste heat boiler of this patent.As shown in the figure, this waste heat boiler with accumulatingdust, corrosion-resistant structure comprises: drum 1, down-comer 2, wireway 3, outer water-cooling wall 5, partition water-cooling wall 6, ash discharge mechanism 7.Wherein, described outer water-cooling wall 5 adopts full film water cold wall structure with partition water-cooling wall 6.
Described outer water-cooling wall 5 surrounds a cavity body structure, as the body of heater of waste heat boiler.On the body of heater that this skin water-cooling wall 5 is surrounded, offer gas approach and exhanst gas outlet relatively.Described drum 1 is arranged at this body of heater upside.This drum 1 is communicated with described outer water-cooling wall 5 by down-comer 2 and wireway 3 respectively, carries out the air water circulation.Wherein, wireway 3 enters pot bucket 1 in order to be communicated with the water vapour that is heated formation in the water-cooling wall, and 2 of down-comers will be in order to returning in the water-cooling wall in the aqueous water transporting in the drum 1.Therefore, this drum 1 vapor collection device that promptly is whole waste heat boiler.
Being provided with at least in the body of heater that described outer water-cooling wall 5 surrounds, one deck cuts off water-cooling wall 6.The setting that is interspersed in body of heater of this partition water-cooling wall 6 forms multiloop exhaust gases passes in body of heater, make the flue gas that flows in body of heater with the path flows of turning back.Described partition water-cooling wall 6 is connected with outer water-cooling wall 5.For example, embodiment illustrated in fig. 1 in, this waste heat boiler specifically is provided with three layers of partition water-cooling wall 6.Wherein, first and third layer of partition water-cooling wall is provided with downwards from the body of heater top, and the second layer cuts off water-cooling wall and upwards is provided with from bottom of furnace body.Like this, in body of heater, turn back mobile by the flue gas of gas approach input along " W " shape route.
Be provided with ash discharge mechanism 7 at this bottom of furnace body, in order to be collected in the dust that deposition stays in the body of heater.
In sum, the designed waste heat boiler of this patent is at its outer water-cooling wall 5 and what cut off that water-cooling wall 6 all adopts is full film water cold wall structure.This makes high-temperature flue gas can directly contact with water-cooling wall in stove, and is pure radiant type heat exchange, has improved the boiler heat exchange efficiency greatly, has improved the sealing property of burner hearth simultaneously.Secondly, this waste heat boiler makes the multiloop exhaust gases passes of formation in the body of heater by partition water-cooling wall 6 is set in body of heater.This one side, the contact area that has increased high-temperature flue gas and water-cooling wall has further improved the thermal conversion efficiency of boiler; On the other hand, slow down the flowing velocity of flue gas in body of heater, weakened the degree of tube bank dust stratification.
As shown in the figure, this waste heat boiler also has steelframe 4 and outer water-cooling wall 5 to be rigidly connected in the body of heater arranged outside, in order to fix and to carry whole boiler.
In addition, on described outer water-cooling wall 5, also be provided with some cleaning doors 8.Can link to each other with special ash removing equipment by this cleaning door 8, in order to handle to carrying out regular deashing in the stove.
Also be provided with some manholes 9 in described outer water-cooling wall 5 bottoms.
In addition, handle designed for incineration of waste specially in view of the waste heat boiler of this patent.And contain sour gas such as a large amount of SO2, SO3 and HCl in the flue gas that in this burning disposal process, is produced.Therefore the selection principle of waste heat boiler steam pressure and vapor (steam) temperature also will prevent heated surface corrosion except that satisfying air feed requiring.The temperature that is boiler water wall should be on flue gas dew point, and is lower than the high temperature corrosion temperature range.Dew point corrosion may occur under the flue gas acid dew point, and may change along with the content of SO2 in the flue gas and SO3, generally in 120-180 ℃ of scope.High temperature corrosion mainly is because the temperature of halide and sulfide is higher than 350 ℃ tube wall temperature causes.For avoiding this temperature province, the design and running pressure of waste heat boiler is elected 1.3MPa (gauge pressure) as, produces 194 ℃ saturated vapor.Drum is directly advanced in boiler feedwater, can guarantee that like this working medium temperature in the boiler water wall heating surface tube all is 194 ℃ of saturation temperatures, thereby any position tube wall temperature that guarantees to contact with flue gas is all between 200～300 ℃.
Claims (5)
1, a kind of waste heat boiler with accumulatingdust, corrosion-resistant structure is characterized in that: comprise drum, down-comer, wireway, outer water-cooling wall, ash discharge mechanism and at least one deck cut off water-cooling wall;
Described outer water-cooling wall surrounds cavity body structure, as the body of heater of waste heat boiler; On this body of heater, offer gas approach and exhanst gas outlet relatively;
Described drum is communicated with described outer water-cooling wall by described down-comer and wireway respectively;
Described one deck at least cuts off water-cooling wall and is arranged in this body of heater; The setting that is interspersed in body of heater of this partition water-cooling wall forms the exhaust gases passes at least two loops in body of heater, make the flue gas that flows in body of heater with the path flows of turning back; This partition water-cooling wall is connected with this skin water-cooling wall;
Described ash discharge mechanism is arranged at this bottom of furnace body.
2, a kind of waste heat boiler with accumulatingdust, corrosion-resistant structure as claimed in claim 1 is characterized in that: described outer water-cooling wall adopts full film water cold wall structure with the partition water-cooling wall.
3, a kind of waste heat boiler with accumulatingdust, corrosion-resistant structure as claimed in claim 1 is characterized in that: also be provided with steelframe with described outer water-cooling wall is rigidly connected in the described body of heater outside, in order to fix and to carry whole boiler.
4, a kind of waste heat boiler with accumulatingdust, corrosion-resistant structure as claimed in claim 1 is characterized in that: also be provided with some cleaning doors on described outer water-cooling wall.
5, a kind of waste heat boiler with accumulatingdust, corrosion-resistant structure as claimed in claim 1 is characterized in that: also be provided with some manholes in described outer water-cooling wall bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820124768XU CN201407634Y (en) | 2008-12-17 | 2008-12-17 | Heat recovery boiler with soot deposit prevention and corrosion-resistant structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820124768XU CN201407634Y (en) | 2008-12-17 | 2008-12-17 | Heat recovery boiler with soot deposit prevention and corrosion-resistant structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407634Y true CN201407634Y (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820124768XU Expired - Fee Related CN201407634Y (en) | 2008-12-17 | 2008-12-17 | Heat recovery boiler with soot deposit prevention and corrosion-resistant structure |
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| CN (1) | CN201407634Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788363A (en) * | 2012-08-15 | 2012-11-21 | 中国瑞林工程技术有限公司 | Waste heat boiler used for scrap copper smelting furnace |
| CN105987376A (en) * | 2015-02-11 | 2016-10-05 | 李根钧 | Combustion equipment for fuel clean combustion and emission purification |
| CN106642156A (en) * | 2017-01-16 | 2017-05-10 | 无锡博勒能源科技有限公司 | Vertical garbage incineration afterheat recovery boiler |
| CN107883364A (en) * | 2017-12-21 | 2018-04-06 | 中国石油天然气第八建设有限公司 | Fixed high thermal efficiency direct-flow gas injection boiler |
| CN110630995A (en) * | 2019-11-01 | 2019-12-31 | 四川东华锅炉工程技术有限公司 | A positive pressure horizontal water tube waste heat boiler |
| CN111981449A (en) * | 2020-08-03 | 2020-11-24 | 光大绿色环保管理（深圳）有限公司 | Waste heat boiler for burning high-sulfur and high-halogen hazardous wastes |
| CN113739585A (en) * | 2020-05-28 | 2021-12-03 | 湖南中冶长天节能环保技术有限公司 | Full-film type wall waste heat boiler |
-
2008
- 2008-12-17 CN CN200820124768XU patent/CN201407634Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788363A (en) * | 2012-08-15 | 2012-11-21 | 中国瑞林工程技术有限公司 | Waste heat boiler used for scrap copper smelting furnace |
| CN105987376A (en) * | 2015-02-11 | 2016-10-05 | 李根钧 | Combustion equipment for fuel clean combustion and emission purification |
| CN105987376B (en) * | 2015-02-11 | 2018-01-19 | 李根钧 | A kind of fuel clean combustion and the combustion apparatus of purification discharge |
| CN106642156A (en) * | 2017-01-16 | 2017-05-10 | 无锡博勒能源科技有限公司 | Vertical garbage incineration afterheat recovery boiler |
| CN106642156B (en) * | 2017-01-16 | 2018-11-02 | 上海四方无锡锅炉工程有限公司 | A kind of vertical refuse destruction heat recovery boiler |
| CN107883364A (en) * | 2017-12-21 | 2018-04-06 | 中国石油天然气第八建设有限公司 | Fixed high thermal efficiency direct-flow gas injection boiler |
| CN110630995A (en) * | 2019-11-01 | 2019-12-31 | 四川东华锅炉工程技术有限公司 | A positive pressure horizontal water tube waste heat boiler |
| CN113739585A (en) * | 2020-05-28 | 2021-12-03 | 湖南中冶长天节能环保技术有限公司 | Full-film type wall waste heat boiler |
| CN113739585B (en) * | 2020-05-28 | 2024-11-12 | 湖南中冶长天节能环保技术有限公司 | Full membrane wall waste heat boiler |
| CN111981449A (en) * | 2020-08-03 | 2020-11-24 | 光大绿色环保管理（深圳）有限公司 | Waste heat boiler for burning high-sulfur and high-halogen hazardous wastes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINZHONGTIAN ENVIRONMENTAL CO., LTD. Free format text: FORMER OWNER: ZHONGTIAN ENVIRONMENTAL PROTECTION INDUSTRIAL GROUP Effective date: 20141201 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100027 CHAOYANG, BEIJING TO: 400000 NANAN, CHONGQING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20141201 Address after: Nanping Nan'an District of Chongqing City Baihe road 400000 No. 43 Patentee after: XINZHONGTIAN ENVIRONMENTAL PROTECTION CO., LTD. Address before: 100027, room 1101, block B, Tianyuan port, No. 2, East Third Ring Road, Beijing, Chaoyang District Patentee before: Zhongtian Environmental Protection Industrial Group |
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| DD01 | Delivery of document by public notice |
Addressee: XINZHONGTIAN ENVIRONMENTAL PROTECTION CO., LTD. Document name: Notification to Pay the Fees |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20161217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |