CN203784922U - Ultrahigh pressure intermediate reheating boiler - Google Patents
Ultrahigh pressure intermediate reheating boiler Download PDFInfo
- Publication number
- CN203784922U CN203784922U CN201420179630.5U CN201420179630U CN203784922U CN 203784922 U CN203784922 U CN 203784922U CN 201420179630 U CN201420179630 U CN 201420179630U CN 203784922 U CN203784922 U CN 203784922U
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- Prior art keywords
- flue
- super
- superheater
- high temperature
- boiler according
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- 238000003303 reheating Methods 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 20
- 238000005338 heat storage Methods 0.000 claims description 5
- 238000004880 explosion Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The utility model discloses an ultrahigh pressure intermediate reheating boiler which is in an inverse U shape and comprises a hearth, a horizontal flue, a flue steering chamber, a silo, steel beams, support pillars, a steam drum and an air collection tank, wherein the cross section of the hearth is square, cold water walls are arranged on the periphery of the hearth, a furnace arch and a platen superheater are arranged at the position of an outlet of the hearth, a high temperature superheater and a high temperature reheater are arranged in the horizontal flue, an upper coal economizer, a lower coal economizer and an air preheater are arranged in the silo in sequence, a heat retainer is arranged on the bottom of the hearth, multiple circles of reinforcing beams are arranged at intervals of 3 meters in the height direction, a partition wall is arranged in the flue steering chamber to divide the flue steering chamber into a front flue and a rear flue, a low temperature reheater is arranged in the front flue, and a low temperature superheater is arranged in the rear flue. The ultrahigh pressure intermediate reheating boiler is efficient, safe and reliable.
Description
Technical field
The utility model relates to power station industrial boiler, relates in particular to a kind of super-pressure reheat boiler.
Background technology
Eleventh Five-Year Plan period, China's crude steel output is increased to 6.3 hundred million tons by 3.5 hundred million tons, average annual growth by 12.2%, emphasis 1000 cubic metres of iron and steel enterprises of statistics and above blast furnace production capacity proportion bring up to 60.9% by 48.3%, 100 tons and above steelmaking converter production capacity proportion bring up to 56.7% by 44.9%, and steel domestic market occupation rate brings up to 97% by 92%.Because iron and steel energy-output ratio accounts for 15% of national industrial total energy consumption, waste water and solid waste discharge amount account for respectively 14% and 17% of industrial discharge total amount simultaneously, and therefore, steel industry becomes the most important thing in whole energy-saving and emission-reduction.The steel and iron industry of China remains and relies on the high flow rate of resource to promote to increase, therefore steel plant will realize the environmental protection economy of energy-saving and emission-reduction, low-carbon (LC) ironmaking, must fully excavate the potentiality of the aspects such as the energy, improve the utilization ratio of resource, reduce to greatest extent the wasting of resources.In iron and steel enterprise, the total energy approach of " three gas " (blast furnace gas, converter gas, oven gas) is to realize energy-saving and cost-reducing breach.In steel mill's three gas, although blast furnace gas available gas content is minimum, its output is maximum.In " three gas " secondary energy sources total amount, blast furnace gas accounts for 64%, oven gas accounts for 29%, converter gas accounts for 7%, this means, the recycling of blast furnace gas is more more great than the recycling meaning of other waste gas, so effective utilization of blast furnace gas is that iron and steel enterprise realizes energy-saving and emission-reduction, one of emphasis direction of synergy lowers consumption.
For the national energy-saving of implementing better reduces discharging fundamental policy, Bing Wei enterprise creates better economic benefit, rich blast furnace gas is all utilized, develops a kind of super-pressure reheat boiler, have save the energy, improve environment, the comprehensive benefits such as supply increase electric power.
Utility model content
The purpose of this utility model is to provide a kind of super-pressure reheat boiler, solves blast furnace coal-gas recovering and utilizes problem, realizes the utilization of blast furnace gas high efficiency, reaches the target of saving the energy, environmental protection.
The technical solution adopted in the utility model is: a kind of super-pressure reheat boiler, be inverted U-shaped layout, comprise burner hearth, horizontal flue, flue reversal chamber, vertical shaft, girder steel, pillar, drum and gas collection header, furnace profile is square, surrounding is provided with cold-water wall, described furnace outlet place is provided with furnace arch, furnace nose and pendant superheater, in described horizontal flue, be provided with high temperature superheater and high temperature reheater, in described vertical shaft, be provided with successively economizer, lower economizer and air preheater, described burner hearth bottom is provided with a heat storage, along short transverse, every 3 meters of left and right, be provided with a circle buckstay, described flue reversal chamber is provided with a partition wall, described partition wall is divided into front flue and rear pass by described flue reversal chamber, in described front flue, be provided with low-temperature reheater, in described rear pass, be provided with low temperature superheater.
Further, described water-cooling wall is welded into and is formed by light pipe and band steel, and behind described furnace outlet place, side wall forms furnace arch, furnace nose of living in to stove inner process.
Further, described water-cooling wall is suspended on described firm beam by derrick rig.
Further, in described burner hearth centerline, be provided with Expansion Center, at described water-cooling wall, place is designed with guider, and described guider and described buckstay are fixed as one.
Further, on described water-cooling wall, be equiped with industrial television shooting hole, peephole, temperature probe, cigarette temperature gaging hole, negative pressure gaging hole, explosion proof door, manhole and oxygen content gaging hole.
Further, described low temperature superheater adopts spiral finned tube.
Further, described pendant superheater, high temperature superheater, high temperature reheater and low-temperature reheater porch pipeline are provided with direct-contact desuperheater.
Further, described pendant superheater, high temperature superheater, high temperature reheater, low-temperature reheater and low temperature superheater are provided with hot fastener.
Further, the snakelike spiral finned tube of the employing of described upper economizer and lower economizer, by economizer support, is supported on the hollow beam of flue backplate top.
Further, in described tube case of air preheater, shock baffle is housed, expansion pipe is all housed between air channel.
The beneficial effects of the utility model are: 1. buckstay is enclosed in design one, have alleviated the water-cooling wall vibration causing due to burning in stove and have prevented from causing the destruction of water-cooling wall wall because combustion instability causes stove implode; 2. design Expansion Center and guider, reach the expansion of constraint heating surface horizontal direction, prevents the object of furnace roof, furnace wall cracking and heating surface distortion; 3. design water injector, plays the hot fastener of 4. design for steam temperature adjusting and emergency episode water spray, guarantees the distance between reheater and superheater and partition wall, furnace wall, prevents device failure.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In accompanying drawing: economizer 19-air preheater 20-heat storage 21-buckstay 22-Expansion Center 23-guider 24-industrial television shooting hole 25-peephole 26-temperature probe 27-cigarette temperature gaging hole 28-negative pressure gaging hole 29-explosion proof door 30-manhole 31-oxygen content gaging hole 32-drum 33-gas collection header under the upper economizer 18-of flue 14-rear pass 15-low-temperature reheater 16-low temperature superheater 17-before 1-burner hearth 2-horizontal flue 3-flue reversal chamber 4-vertical shaft 5-girder steel 6-pillar 7-water-cooling wall 8-furnace arch, furnace nose 9-pendant superheater 10-high temperature superheater 11-high temperature reheater 12-partition wall 13-.
The specific embodiment
In order to make the advantage of the purpose of this utility model and technical scheme clearer, below in conjunction with accompanying drawing and example, the utility model is further elaborated.
A super-pressure reheat boiler, is inverted U-shaped layout as shown in drawings, comprises burner hearth 1, horizontal flue 2, flue reversal chamber 3, vertical shaft 4, girder steel 5, pillar 6, drum 32 and gas collection header 33.Burner hearth 1 section is square, and surrounding is provided with cold-water wall 7, and described burner hearth 1 exit is provided with furnace arch, furnace nose 8 and pendant superheater 9.The rear water-cooling wall of described furnace arch, furnace nose 7 forms to stove inner process at furnace outlet lower edge.Described water-cooling wall 7 is welded into and is formed by light pipe and band steel, and behind described burner hearth 1 exit, side wall 7 forms furnace arch, furnace nose 8 of living in to stove inner process, can play flue gas guide effect.On described water-cooling wall 7, be equiped with industrial television shooting hole 24, peephole 25, temperature probe 26, cigarette temperature gaging hole 27, negative pressure gaging hole 28, explosion proof door 29, manhole 30 and oxygen content gaging hole 31, the needs that meet operation, maintenance and monitor.The logical derrick rig of described water-cooling wall 7 is suspended on described firm beam, and during hot operation, integral body expands downwards.In described horizontal flue 2, be provided with high temperature superheater 10 and high temperature reheater 11, in described vertical shaft 4, be provided with successively economizer 17, lower economizer 18 and air preheater 19, described burner hearth 1 bottom is provided with a heat storage 20, along short transverse, every 3 meters of left and right, be provided with a circle buckstay 21, alleviate the water-cooling wall vibration causing due to burning in stove and prevent from causing the destruction of water-cooling wall wall because combustion instability causes stove implode, and when heat storage 20 can prevent that furnace pressure from reducing, maintain temperature in stove, prevent unexpected generation.In described burner hearth 1 centerline, be provided with Expansion Center 22, at described water-cooling wall, 7 places are designed with guider 23, described guider 23 is fixed as one with described buckstay 21, plays the expansion of constraint heating surface horizontal direction, prevents the object of furnace roof, furnace wall cracking and heating surface distortion.Described flue reversal chamber 3 is provided with a partition wall 12, and described partition wall 12 is divided into front flue 13 and rear pass 14 by described flue reversal chamber 3, in described front flue 13, is provided with low-temperature reheater 15, in described rear pass 14, is provided with low temperature superheater 16.Described low temperature superheater 16 adopts spiral finned tube.Described pendant superheater 9, high temperature superheater 10, high temperature reheater 11 and low-temperature reheater 15 porch pipelines are provided with direct-contact desuperheater and hot fastener, and steam temperature regulates and emergency spray is used and guarantees the distance between each pipeline, prevents the effect swinging.In described air preheater 19 bobbin carriages, shock baffle is housed, expansion pipe is all housed between air channel, to compensate the relative expansion under hot, and guarantee that sealing do not leak.The snakelike spiral finned tube of the employing of described upper economizer 17 and lower economizer 18, by economizer support, is supported on the hollow beam of flue backplate top.
Blast furnace gas sprays into the interior burning of the full burner hearth 1 of boiler by burner, the high-temperature flue gas producing, in burner hearth with after water-cooling wall 7, radiation heat transfer, flow out burner hearth, carry out radiation and heat convection with pendant superheater 9, high temperature superheater 10, low temperature superheater 16, carry out heat convection with high temperature reheater 11 and low-temperature reheater 15, then through upper economizer 17, lower economizer 18, air preheater 19, carry out heat convection, cooling flue gas is sent to chimney by air-introduced machine, finally enters atmosphere.The heat of flue gas is heated after being absorbed by water in each heating surface, and evaporation and overheated, comes together in gas collection header 33, transfers to steam turbine.
Claims (10)
1. a super-pressure reheat boiler, be inverted U-shaped layout, comprise burner hearth (1), horizontal flue (2), flue reversal chamber (3), vertical shaft (4), girder steel (5), pillar (6), drum (32) and gas collection header (33), burner hearth (1) section is square, surrounding is provided with cold-water wall (7), described burner hearth (1) exit is provided with furnace arch, furnace nose (8) and pendant superheater (9), in described horizontal flue (2), be provided with high temperature superheater (10) and high temperature reheater (11), in described vertical shaft (4), be provided with successively economizer (17), lower economizer (18) and air preheater (19), it is characterized in that: described burner hearth (1) bottom is provided with a heat storage (20), along short transverse, every 3 meters of left and right, be provided with a circle buckstay (21), described flue reversal chamber (3) is provided with a partition wall (12), described partition wall (12) is divided into front flue (13) and rear pass (14) by described flue reversal chamber (3), in described front flue (13), be provided with low-temperature reheater (15), in described rear pass (14), be provided with low temperature superheater (16).
2. a kind of super-pressure reheat boiler according to claim 1, is characterized in that: described water-cooling wall (7) is welded into and is formed by light pipe and band steel, and behind described burner hearth (1) exit, side wall (7) forms furnace arch, furnace nose of living in (8) to stove inner process.
3. a kind of super-pressure reheat boiler according to claim 1, is characterized in that: being suspended on described firm beam (5) by derrick rig of described water-cooling wall (7).
4. a kind of super-pressure reheat boiler according to claim 1, it is characterized in that: in described burner hearth (1) centerline, be provided with Expansion Center (22), at described water-cooling wall (7), locate to be designed with guider (23), described guider (23) is fixed as one with described buckstay (21).
5. a kind of super-pressure reheat boiler according to claim 1, is characterized in that: on described water-cooling wall (7), be equiped with industrial television shooting hole (24), peephole (25), temperature probe (26), cigarette temperature gaging hole (27), negative pressure gaging hole (28), explosion proof door (29), manhole (30) and oxygen content gaging hole (31).
6. a kind of super-pressure reheat boiler according to claim 1, is characterized in that: described low temperature superheater (16) adopts spiral finned tube.
7. a kind of super-pressure reheat boiler according to claim 1, is characterized in that: described pendant superheater (9), high temperature superheater (10), high temperature reheater (11) and low-temperature reheater (15) porch pipeline are provided with direct-contact desuperheater.
8. a kind of super-pressure reheat boiler according to claim 1, is characterized in that: described pendant superheater (9), high temperature superheater (10), high temperature reheater (11), low-temperature reheater (15) and low temperature superheater (16) are provided with hot fastener.
9. a kind of super-pressure reheat boiler according to claim 1, is characterized in that: the snakelike spiral finned tube of the employing of described upper economizer 17 and lower economizer 18, by economizer support, is supported on the hollow beam of flue backplate top.
10. a kind of super-pressure reheat boiler according to claim 1, is characterized in that: described air preheater (19) adopts tubular air preheater, and shock baffle is housed in bobbin carriage, and expansion pipe is all housed between air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179630.5U CN203784922U (en) | 2014-04-15 | 2014-04-15 | Ultrahigh pressure intermediate reheating boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179630.5U CN203784922U (en) | 2014-04-15 | 2014-04-15 | Ultrahigh pressure intermediate reheating boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784922U true CN203784922U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420179630.5U Expired - Lifetime CN203784922U (en) | 2014-04-15 | 2014-04-15 | Ultrahigh pressure intermediate reheating boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN203784922U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456507A (en) * | 2014-10-09 | 2015-03-25 | 中石化宁波工程有限公司 | Saturating and overheating integrated boiler |
| CN104990059A (en) * | 2015-06-02 | 2015-10-21 | 章礼道 | Ultralow-temperature coal economizer for single-reheat unit |
| CN106594699A (en) * | 2016-11-29 | 2017-04-26 | 武汉都市环保工程技术股份有限公司 | Low heating value coal gas electric power generation system |
| CN108474549A (en) * | 2016-01-28 | 2018-08-31 | 安德里兹公司 | Recycle the device of the heat recovery surface of boiler |
-
2014
- 2014-04-15 CN CN201420179630.5U patent/CN203784922U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456507A (en) * | 2014-10-09 | 2015-03-25 | 中石化宁波工程有限公司 | Saturating and overheating integrated boiler |
| CN104990059A (en) * | 2015-06-02 | 2015-10-21 | 章礼道 | Ultralow-temperature coal economizer for single-reheat unit |
| CN104990059B (en) * | 2015-06-02 | 2017-05-24 | 章礼道 | Ultralow-temperature coal economizer for single-reheat unit |
| CN108474549A (en) * | 2016-01-28 | 2018-08-31 | 安德里兹公司 | Recycle the device of the heat recovery surface of boiler |
| CN108474549B (en) * | 2016-01-28 | 2021-02-02 | 安德里兹公司 | Device for recovering heat recovery surface of boiler |
| CN106594699A (en) * | 2016-11-29 | 2017-04-26 | 武汉都市环保工程技术股份有限公司 | Low heating value coal gas electric power generation system |
| CN106594699B (en) * | 2016-11-29 | 2019-10-22 | 中冶南方都市环保工程技术股份有限公司 | Low-heat value gas electricity generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |