CN202403248U - 660 MW (medium wave) graded supercritical boiler - Google Patents
660 MW (medium wave) graded supercritical boiler Download PDFInfo
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- CN202403248U CN202403248U CN 201120539550 CN201120539550U CN202403248U CN 202403248 U CN202403248 U CN 202403248U CN 201120539550 CN201120539550 CN 201120539550 CN 201120539550 U CN201120539550 U CN 201120539550U CN 202403248 U CN202403248 U CN 202403248U
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Abstract
A 660 MW(medium wave) graded supercritical boiler comprises an open-air n-shaped boiler body (1) with variable pressure operation, one-time intermediate reheating, a single hearth, balanced ventilation, solid-state slagging and an all-steel framed suspension structure. An enclosure wall is mounted on the outer periphery of the boiler body, an economizer (13), a low-temperature reheater (8), and a water cooled wall (2) are mounted inside the enclosure wall, the water cooled wall is connected with a starting system and slides relative to a reinforcing beam, roof tubes (14) of the boiler body are connected with a low-temperature superheater (7), the low-temperature superheater is connected with a partition screen superheater (3), the partition screen superheater is connected with a high-temperature finishing superheater (4), the low-temperature reheater is connected with a finishing reheater (6), air preheaters (12) are mounted under the enclosure wall, the starting system has a built-in recycling pump, a main burner includes oscillating burners arranged at four corners and is capable of tangentially firing, 32 burners are arranged in 8 tiers, and the burners can oscillate up and down with a maximum oscillating angle of +/-30 degrees.
Description
Technical field:
the utility model relates to a kind of New-type boiler field, is specifically related to a kind of 660MW grade super critical boiler.
Background technology:
China existing 600MW grade super critical boiler; General main-steam outlet parameter is (543/571 a ℃); The reheated steam outlet temperature is (569 ℃); And ultra-supercritical boiler parameter main-steam outlet parameter is (605 ℃), and the reheated steam outlet temperature is (603 ℃).The outlet of also not main at home vapour and reheated steam is the boiler of (571/603 ℃), and promptly superheater is a super critical boiler parameter and reheater is the boiler of ultra supercritical parameter.
are according to the market demand; Require to reduce factory's heat consumption rate; Steam turbine has been brought up to 600 ℃ with the inlet steam temperature of intermediate pressure cylinder; The outlet steam parameter of boiler is changed into 571 ℃/603 ℃ like this, and promptly superheater is the parameter of super critical boiler, and reheater is the parameter of ultra supercritical.This variation changes interior superheater of stove and reheater caloric receptivity, and is all different with the overcritical and ultra supercritical of original technology.For adapting to this variation, having begun with the development of autonomous 660MW grade overcritical (571/603 ℃) boiler is the utility model of purpose, with the supporting boiler that coupling new argument supercritical unit is provided.
Summary of the invention:
The purpose of
the utility model provides the outlet steam parameter of boiler and changes into 571 ℃/603 ℃, and promptly superheater is the parameter of super critical boiler, and reheater is the boiler of the parameter of ultra supercritical.
Above-mentioned purpose realizes through following technical scheme:
660MW grade super critical boiler, its composition comprises: comprise variable-pressure operation, resuperheat, single burner hearth, balanced draft, dry ash extraction, all steel frame overhung construction, the open-air π shape body of heater of arranging, the bag wall is equipped with in described body of heater outer ring; Described bag is equipped with economizer and low-temperature reheater, economizer and water-cooling wall within the walls, and described water-cooling wall connects start-up system and slides relatively with buckstay, and the roof tube of described body of heater connects low temperature superheater; Described low temperature superheater connects division pendant superheater; Described division pendant superheater connects the high temperature finishing superheater, and described low-temperature reheater connects final reheater, and described Bao Qiang is equipped with air preheater in the bottom; The start-up system that has built-in recirculation pump; Main burner is four jiaos of tilting burners of arranging, tangential firing, and 32 burners divide 8 layers of layout; Described burner can swing up and down, and the full swing angle is ± 30 °.
The ultra boiler of
described 660MW grade; The SOFA burner that adopts low NOx combusting technology is equipped with at described water-cooling wall middle part; Described main burner is equipped with in described SOFA burner bottom; Described water-cooling wall top has the vertical tube panel of rising; Described water-cooling wall of boiler lower furnace and ash bucket adopt spirally-wound tubes, connect with transition collection case between the two, and each pipe in the same pipe racks of described spirally-wound tubes is walked around the corner part and the mid portion of described burner hearth in the same manner from top to bottom; The flame circle of contact direction of rotation of the rotation ascent direction of described spirally-wound tubes and described burner is opposite simultaneously, between described low temperature superheater and the described low-temperature reheater steam cooled clamp and spacer tube is housed.
The ultra boiler of
described 660MW grade, described start-up system comprises circulating pump, described circulating pump connects steam-water separator; Described steam-water separator connects the air suspended type flash vessel; Described air suspended type flash vessel connects drain tank, is provided with secondary desuperheating water water spray bypath system in the described body of heater, and the heating coil flow causes when water level raises in the water storage tank can directly squeeze into superheater desuperheating water system with water; Spray into superheater, control water storage tank water level.
The ultra boiler of
described 660MW grade; Described low-temperature reheater connects high temperature reheater through pipeline, on described pipeline, attemperator is housed, and described superheater is the radiation and convection type; Low temperature superheater is arranged in the tail vertical well rear pass; Division pendant superheater and high temperature finishing superheater are arranged in upper furnace, and superheat steam temperature adopts coal-water ratio and the control of two-stage spray desuperheating, arrange the branch shield heating surface of transverse pitch broad at upper furnace; High temperature reheater adopts double wrap to be arranged in horizontal flue; Reheater adopts gas baffle temperature adjustment, underload excess air coefficient to transfer; On the low connection pipeline that exports paramount reimportation again, described emergency spray attemperator is set; Change reheat steam temperature at boiler load and fluctuation time control system reheat steam temperature occurs, described economizer adopts light pipe along the row layout, adopts lower flue gas flow rate and installs effective measures such as abrasion-proof cover plate; Reduce the wearing and tearing of heating surface, also reduced the resistance of economizer system simultaneously.
described 660MW grade super critical boiler partly adopts expandable band drag board perpendicular rigid girder system system in described Spiral Coil Waterwall, and the suspention of spirally-wound tubes is to be realized by the drag board that evenly is attached to outer surface of tube wall; Drag board is arranged into the transition region of spirally-wound tubes and vertical tube panel always from the bottom of furnace hopper, pass to the upper vertical tube panel to the weight load equably through the comb shape boatswain chair in transition region; Being propped up by vertical lapping plate fully from heavy load of buckstay system and furnace wall etc. hung, and the load of lower furnace and furnace hopper can pass to the upper vertical water-cooling wall; Superheater is the radiation and convection type, and low temperature superheater is arranged in the tail vertical well rear pass, and division pendant superheater and high temperature finishing superheater are arranged in upper furnace, and superheat steam temperature adopts coal-water ratio and the control of two-stage spray desuperheating; High temperature reheater adopts double wrap to be arranged in horizontal flue; Low-temperature reheater is arranged in the preceding flue of tail vertical well; Reheater adopts gas baffle temperature adjustment, underload excess air coefficient to regulate; On the low connection pipeline that exports paramount reimportation again, the emergency spray attemperator is set, changes reheat steam temperature at boiler load and fluctuation occurs, control reheat steam temperature when being higher than setting value.
Beneficial effect:
1. the utility model have reduced factory's heat consumption rate; Steam turbine has been brought up to 600 ℃ with the inlet steam temperature of intermediate pressure cylinder; The outlet steam parameter of boiler is changed into 571 ℃/603 ℃, and promptly superheater is the parameter of super critical boiler, and reheater also is the parameter of ultra supercritical; This variation makes interior superheater of stove and reheater caloric receptivity, and great changes will take place.
2. the utility model are variable-pressure operation, resuperheat, single burner hearth, balanced draft, dry ash extraction, all steel frame overhung construction, the open-air π shape super critical boiler of arranging; The start-up system that has built-in recirculation pump; Adopt low NOx combusting technology, 32 burners divide 8 layers of layout.
3. the utlity model has good transformation, subsequent use and restart performance; Boiler lower furnace water-cooling wall and ash bucket adopt spirally-wound tubes, enough cooling capacities are all arranged under various loads, and can compensate effectively along the thermal deviation on the burner hearth circumference, and hydrodynamic characterisitic is stable; Adopt four to start separator, wall thickness is even, and thermal stress is little during variations in temperature, is suitable for sliding pressure operation, has improved the efficient of unit, has prolonged the life-span of steam turbine.
The system that is with recirculation pump is adopted in
4. the utility model, makes boiler have quick startup ability, shortens the unit starting time; In start-up course, can effectively reclaim heat and working medium; And the air suspended type flash vessel and the drain tank of enough capacity have been equipped with in start-up system.
5. the utlity model has flameholding, the uniform corner tangential firing in temperature field system, and corner tangential firing system combustion system can guarantee along the uniform Load Distribution of burner hearth horizontal direction.And coal adaptability is wide, can be better and coal pulverizer be complementary.
6. the utlity model has the runnability of high reliability; Data through the super critical boiler that puts into operation; Accumulation is a large amount of debugs and data, has improved the availability and the reliability of unit, can satisfy user's various specification requirements.
Absorb heat evenly
7. the water-cooling wall of the utility model, and thermal deviation is little between pipe, makes that the medium temperature and the metal temperature of water-cooling wall outlet are very even.Therefore, Spiral Coil Waterwall can adapt to the variation of stove internal combustion operating mode.
are directly welding each other between buckstay and the water-cooling wall of the utility model 8., can slide relatively, to prevent the generation of extra heat stress, has guaranteed the burner hearth safe and reliable operation.
Steam cooled clamp and spacer tube structure are adopted in
9. the utility model: kept the transverse pitch of superheater and reheater parts and prevent to rock.
10. the utility model to be provided with secondary desuperheating water water spray bypath system be circulating pump; Its effect is more than the boiler dc load; Because causing when water level raises in the water storage tank, the heating coil flow can water directly be squeezed into superheater desuperheating water system; Spray into superheater, control the water storage tank water level when needed.
11. the utility model superheaters, reheater heating surface material selection leave big nargin.Economizer adopts light pipe to arrange along row, adopts lower flue gas flow rate and installs effective measures such as abrasion-proof cover plate, reduces the wearing and tearing of heating surface, and the while has also been reduced the resistance of economizer system.
About 3.6 hundred million RMB of boiler separate unit cost of
12. the utility model, this product has been signed the contract for future delivery of super critical boiler, and nearly 6,000,000,000 RMB of macrocontract volume have created huge economic benefit.
Description of drawings:
accompanying drawing 1 is the structural representation of this product.
accompanying drawing 2 is the vertical view of accompanying drawing 1.
The specific embodiment:
Embodiment 1:
a kind of 660MW grade super critical boiler, its composition comprises: variable-pressure operation, resuperheat, single burner hearth, balanced draft, dry ash extraction, all steel frame overhung construction, the open-air π shape body of heater of arranging 1, bag wall 15 is equipped with in the body of heater outer ring; Bag is equipped with economizer 13 and low-temperature reheater 8, economizer and water-cooling wall 2 within the walls, and water-cooling wall connects start-up system and slides relatively with buckstay, and the roof tube 14 of body of heater connects low temperature superheater 7; Low temperature superheater connects division pendant superheater 3; Division pendant superheater connects high temperature finishing superheater 4, and low-temperature reheater connects final reheater 6, and Bao Qiang is equipped with the bottom air preheater 12; The start-up system that has built-in recirculation pump; Main burner is four jiaos of tilting burners of arranging, tangential firing, and 32 burners divide 8 layers of layout; Burner can swing up and down, and the full swing angle is ± 30 °.
Embodiment 2:
The ultra boiler of
embodiment 1 described 660MW grade; The SOFA burner 10 that adopts low NOx combusting technology is equipped with at described water-cooling wall middle part; Described main burner 11 is equipped with in described SOFA burner bottom; Described water-cooling wall top has the vertical tube panel of rising; Described water-cooling wall of boiler lower furnace and ash bucket adopt spirally-wound tubes, connect with transition collection case between the two, and each pipe in the same pipe racks of described spirally-wound tubes is walked around the corner part and the mid portion of described burner hearth in the same manner from top to bottom; The flame circle of contact direction of rotation of the rotation ascent direction of described spirally-wound tubes and described burner is opposite simultaneously, between described low temperature superheater and the described low-temperature reheater steam cooled clamp and spacer tube is housed.
Embodiment 3:
The ultra boiler of
embodiment 1 described 660MW grade; Described start-up system comprises circulating pump 9; Described circulating pump connects steam-water separator 5, and described steam-water separator connects the air suspended type flash vessel, and described air suspended type flash vessel connects drain tank.Described start-up system comprises circulating pump; Described circulating pump connects steam-water separator, and described steam-water separator connects the air suspended type flash vessel, and described air suspended type flash vessel connects drain tank; Be provided with secondary desuperheating water water spray bypath system in the described body of heater; The heating coil flow causes when water level raises in the water storage tank can directly squeeze into superheater desuperheating water system with water, sprays into superheater, control water storage tank water level.
Embodiment 4:
The ultra boiler of 660MW grade that
are above-mentioned, described low-temperature reheater connects high temperature reheater through pipeline, on described pipeline, attemperator is housed.Described low-temperature reheater connects high temperature reheater through pipeline; On described pipeline, attemperator is housed; Described superheater is the radiation and convection type, and low temperature superheater is arranged in the tail vertical well rear pass, and division pendant superheater and high temperature finishing superheater are arranged in upper furnace; Superheat steam temperature adopts coal-water ratio and the control of two-stage spray desuperheating, arranges the branch shield heating surface of transverse pitch broad at upper furnace; High temperature reheater adopts double wrap to be arranged in horizontal flue; Reheater adopts gas baffle temperature adjustment, underload excess air coefficient to transfer; On the low connection pipeline that exports paramount reimportation again, described emergency spray attemperator is set; Change reheat steam temperature at boiler load and fluctuation time control system reheat steam temperature occurs, described economizer adopts light pipe along the row layout, adopts lower flue gas flow rate and installs effective measures such as abrasion-proof cover plate; Reduce the wearing and tearing of heating surface, also reduced the resistance of economizer system simultaneously.
Embodiment 5:
a kind of 660MW grade super critical boiler partly adopts expandable band drag board perpendicular rigid girder system system in described Spiral Coil Waterwall, and the suspention of spirally-wound tubes is to be realized by the drag board that evenly is attached to outer surface of tube wall; Drag board is arranged into the transition region of spirally-wound tubes and vertical tube panel always from the bottom of furnace hopper, pass to the upper vertical tube panel to the weight load equably through the comb shape boatswain chair in transition region; Being propped up by vertical lapping plate fully from heavy load of buckstay system and furnace wall etc. hung, and the load of lower furnace and furnace hopper can pass to the upper vertical water-cooling wall; Superheater is the radiation and convection type, and low temperature superheater is arranged in the tail vertical well rear pass, and division pendant superheater and high temperature finishing superheater are arranged in upper furnace, and superheat steam temperature adopts coal-water ratio and the control of two-stage spray desuperheating; High temperature reheater adopts double wrap to be arranged in horizontal flue; Low-temperature reheater is arranged in the preceding flue of tail vertical well; Reheater adopts gas baffle temperature adjustment, underload excess air coefficient to regulate; On the low connection pipeline that exports paramount reimportation again, the emergency spray attemperator is set, changes reheat steam temperature at boiler load and fluctuation occurs, control reheat steam temperature when being higher than setting value.
In the design process of
described 660MW grade super critical boiler, need to confirm rational chamber structure size, and the after-flame height of fuel etc.; Water screen tube quantum count, specification, pitch, mass velocity and water-cooling wall material etc.; The matching problem of combustion system and pulverized coal preparation system; The start-up system choice of capacity, the selection of the specification of system pipeline, valve specification etc. all should be noted that.In the design of desuperheating water system, confirm the specification of capacity, the desuperheating water pipeline of desuperheating water pipelines at different levels, the selection design of valve, and the layout and the material of superheater, reheater heating surface are selected; The labor of detailed water circulation calculation and hydrodynamic force security all is very important factor.
The burner hearth parameter is confirmed again according to above analysis in
, realizes that thermic load data, water-cooling wall performance are reasonable, and has strong unit capacity adaptability; Heating surface specifications at different levels and heat absorption ratio are reasonable, and structure realizes easily, guarantees lower uncombusted loss and NOx discharging, guarantees the technical advance of boiler.
Claims (8)
1. 660MW grade super critical boiler, its composition comprises: comprise variable-pressure operation, resuperheat, single burner hearth, balanced draft, dry ash extraction, all steel frame overhung construction, the open-air π shape body of heater of arranging, it is characterized in that: the bag wall is equipped with in described body of heater outer ring; Described bag is equipped with economizer and low-temperature reheater, economizer and water-cooling wall within the walls, and described water-cooling wall connects start-up system and slides relatively with buckstay, and the roof tube of described body of heater connects low temperature superheater; Described low temperature superheater connects division pendant superheater; Described division pendant superheater connects the high temperature finishing superheater, and described low-temperature reheater connects final reheater, and described Bao Qiang is equipped with air preheater in the bottom; The start-up system that has built-in recirculation pump; Main burner is four jiaos of tilting burners of arranging, tangential firing, and 32 burners divide 8 layers of layout; Described burner can swing up and down, and the full swing angle is ± 30 °.
2. the ultra boiler of 660MW grade according to claim 1; It is characterized in that: the SOFA burner that adopts low NOx combusting technology is equipped with at described water-cooling wall middle part; Described main burner is equipped with in described SOFA burner bottom; Described water-cooling wall top has the vertical tube panel of rising; Described water-cooling wall of boiler lower furnace and ash bucket adopt spirally-wound tubes, connect with transition collection case between the two, and each pipe in the same pipe racks of described spirally-wound tubes is walked around the corner part and the mid portion of described burner hearth in the same manner from top to bottom; The flame circle of contact direction of rotation of the rotation ascent direction of described spirally-wound tubes and described burner is opposite simultaneously, between described low temperature superheater and the described low-temperature reheater steam cooled clamp and spacer tube is housed.
3. the ultra boiler of 660MW grade according to claim 1 and 2, it is characterized in that: described start-up system comprises circulating pump, described circulating pump connects steam-water separator; Described steam-water separator connects the air suspended type flash vessel; Described air suspended type flash vessel connects drain tank, is provided with secondary desuperheating water water spray bypath system in the described body of heater, and the heating coil flow causes when water level raises in the water storage tank can directly squeeze into superheater desuperheating water system with water; Spray into superheater, control water storage tank water level.
4. the ultra boiler of 660MW grade according to claim 1 and 2; It is characterized in that: described low-temperature reheater connects high temperature reheater through pipeline, on described pipeline, attemperator is housed, and described superheater is the radiation and convection type; Low temperature superheater is arranged in the tail vertical well rear pass; Division pendant superheater and high temperature finishing superheater are arranged in upper furnace, and superheat steam temperature adopts coal-water ratio and the control of two-stage spray desuperheating, arrange the branch shield heating surface of transverse pitch broad at upper furnace; High temperature reheater adopts double wrap to be arranged in horizontal flue; Reheater adopts gas baffle temperature adjustment, underload excess air coefficient to transfer; On the low connection pipeline that exports paramount reimportation again, described emergency spray attemperator is set; Change reheat steam temperature at boiler load and fluctuation time control system reheat steam temperature occurs, described economizer adopts light pipe along the row layout, adopts lower flue gas flow rate and installs effective measures such as abrasion-proof cover plate; Reduce the wearing and tearing of heating surface, also reduced the resistance of economizer system simultaneously.
5. the ultra boiler of 660MW grade according to claim 3; It is characterized in that: described low-temperature reheater connects high temperature reheater through pipeline, on described pipeline, attemperator is housed, and described superheater is the radiation and convection type; Low temperature superheater is arranged in the tail vertical well rear pass; Division pendant superheater and high temperature finishing superheater are arranged in upper furnace, and superheat steam temperature adopts coal-water ratio and the control of two-stage spray desuperheating, arrange the branch shield heating surface of transverse pitch broad at upper furnace; High temperature reheater adopts double wrap to be arranged in horizontal flue; Reheater adopts gas baffle temperature adjustment, underload excess air coefficient to transfer; On the low connection pipeline that exports paramount reimportation again, described emergency spray attemperator is set; Change reheat steam temperature at boiler load and fluctuation time control system reheat steam temperature occurs, described economizer adopts light pipe along the row layout, adopts lower flue gas flow rate and installs effective measures such as abrasion-proof cover plate; Reduce the wearing and tearing of heating surface, also reduced the resistance of economizer system simultaneously.
6. 660MW grade super critical boiler according to claim 2; It is characterized in that: partly adopt expandable band drag board perpendicular rigid girder system system in described Spiral Coil Waterwall, the suspention of spirally-wound tubes is to be realized by the drag board that evenly is attached to outer surface of tube wall; Drag board is arranged into the transition region of spirally-wound tubes and vertical tube panel always from the bottom of furnace hopper, pass to the upper vertical tube panel to the weight load equably through the comb shape boatswain chair in transition region; Being propped up by vertical lapping plate fully from heavy load of buckstay system and furnace wall etc. hung, and the load of lower furnace and furnace hopper can pass to the upper vertical water-cooling wall; Superheater is the radiation and convection type, and low temperature superheater is arranged in the tail vertical well rear pass, and division pendant superheater and high temperature finishing superheater are arranged in upper furnace, and superheat steam temperature adopts coal-water ratio and the control of two-stage spray desuperheating; High temperature reheater adopts double wrap to be arranged in horizontal flue; Low-temperature reheater is arranged in the preceding flue of tail vertical well; Reheater adopts gas baffle temperature adjustment, underload excess air coefficient to regulate; On the low connection pipeline that exports paramount reimportation again, the emergency spray attemperator is set, changes reheat steam temperature at boiler load and fluctuation occurs, control reheat steam temperature when being higher than setting value.
7. 660MW grade super critical boiler according to claim 3; It is characterized in that: partly adopt expandable band drag board perpendicular rigid girder system system in described Spiral Coil Waterwall, the suspention of spirally-wound tubes is to be realized by the drag board that evenly is attached to outer surface of tube wall; Drag board is arranged into the transition region of spirally-wound tubes and vertical tube panel always from the bottom of furnace hopper, pass to the upper vertical tube panel to the weight load equably through the comb shape boatswain chair in transition region; Being propped up by vertical lapping plate fully from heavy load of buckstay system and furnace wall etc. hung, and the load of lower furnace and furnace hopper can pass to the upper vertical water-cooling wall; Superheater is the radiation and convection type, and low temperature superheater is arranged in the tail vertical well rear pass, and division pendant superheater and high temperature finishing superheater are arranged in upper furnace, and superheat steam temperature adopts coal-water ratio and the control of two-stage spray desuperheating; High temperature reheater adopts double wrap to be arranged in horizontal flue; Low-temperature reheater is arranged in the preceding flue of tail vertical well; Reheater adopts gas baffle temperature adjustment, underload excess air coefficient to regulate; On the low connection pipeline that exports paramount reimportation again, the emergency spray attemperator is set, changes reheat steam temperature at boiler load and fluctuation occurs, control reheat steam temperature when being higher than setting value.
8. 660MW grade super critical boiler according to claim 4; It is characterized in that: partly adopt expandable band drag board perpendicular rigid girder system system in described Spiral Coil Waterwall, the suspention of spirally-wound tubes is to be realized by the drag board that evenly is attached to outer surface of tube wall; Drag board is arranged into the transition region of spirally-wound tubes and vertical tube panel always from the bottom of furnace hopper, pass to the upper vertical tube panel to the weight load equably through the comb shape boatswain chair in transition region; Being propped up by vertical lapping plate fully from heavy load of buckstay system and furnace wall etc. hung, and the load of lower furnace and furnace hopper can pass to the upper vertical water-cooling wall; Superheater is the radiation and convection type, and low temperature superheater is arranged in the tail vertical well rear pass, and division pendant superheater and high temperature finishing superheater are arranged in upper furnace, and superheat steam temperature adopts coal-water ratio and the control of two-stage spray desuperheating; High temperature reheater adopts double wrap to be arranged in horizontal flue; Low-temperature reheater is arranged in the preceding flue of tail vertical well; Reheater adopts gas baffle temperature adjustment, underload excess air coefficient to regulate; On the low connection pipeline that exports paramount reimportation again, the emergency spray attemperator is set, changes reheat steam temperature at boiler load and fluctuation occurs, control reheat steam temperature when being higher than setting value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120539550 CN202403248U (en) | 2011-12-21 | 2011-12-21 | 660 MW (medium wave) graded supercritical boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120539550 CN202403248U (en) | 2011-12-21 | 2011-12-21 | 660 MW (medium wave) graded supercritical boiler |
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| CN202403248U true CN202403248U (en) | 2012-08-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017137A (en) * | 2012-12-27 | 2013-04-03 | 青岛胜利锅炉有限公司 | Low-temperature corrosion resisting structure of boiler |
| CN105485699A (en) * | 2014-10-03 | 2016-04-13 | 维美德技术有限公司 | Arrangement and method in soda recovery boiler |
| CN106545833A (en) * | 2016-10-28 | 2017-03-29 | 杭州红山热电有限公司 | Boiler steam and water circuit |
-
2011
- 2011-12-21 CN CN 201120539550 patent/CN202403248U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017137A (en) * | 2012-12-27 | 2013-04-03 | 青岛胜利锅炉有限公司 | Low-temperature corrosion resisting structure of boiler |
| CN105485699A (en) * | 2014-10-03 | 2016-04-13 | 维美德技术有限公司 | Arrangement and method in soda recovery boiler |
| CN106545833A (en) * | 2016-10-28 | 2017-03-29 | 杭州红山热电有限公司 | Boiler steam and water circuit |
| CN106545833B (en) * | 2016-10-28 | 2018-07-17 | 杭州红山热电有限公司 | Boiler steam and water circuit |
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