JP6830122B2 - 複数のライザー部を備えた流動砂下降型の循環流動層ボイラー及びその運転方法 - Google Patents
複数のライザー部を備えた流動砂下降型の循環流動層ボイラー及びその運転方法 Download PDFInfo
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- JP6830122B2 JP6830122B2 JP2019087026A JP2019087026A JP6830122B2 JP 6830122 B2 JP6830122 B2 JP 6830122B2 JP 2019087026 A JP2019087026 A JP 2019087026A JP 2019087026 A JP2019087026 A JP 2019087026A JP 6830122 B2 JP6830122 B2 JP 6830122B2
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- 238000000034 method Methods 0.000 title claims description 21
- 239000000446 fuel Substances 0.000 claims description 95
- 239000004576 sand Substances 0.000 claims description 77
- 239000007800 oxidant agent Substances 0.000 claims description 44
- 239000000567 combustion gas Substances 0.000 claims description 35
- 238000002485 combustion reaction Methods 0.000 claims description 35
- 230000001590 oxidative effect Effects 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 22
- 239000007924 injection Substances 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 16
- 238000010248 power generation Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 7
- 239000002245 particle Substances 0.000 description 16
- 239000000654 additive Substances 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 230000003628 erosive effect Effects 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 230000023556 desulfurization Effects 0.000 description 5
- 230000003009 desulfurizing effect Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0015—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type
- F22B31/003—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type with tubes surrounding the bed or with water tube wall partitions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0084—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0069—Systems therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0076—Controlling processes for fluidized bed boilers not related to a particular type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
- F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/12—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated exclusively within the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/28—Control devices specially adapted for fluidised bed, combustion apparatus
- F23C10/30—Control devices specially adapted for fluidised bed, combustion apparatus for controlling the level of the bed or the amount of material in the bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
- F23C2206/103—Cooling recirculating particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
- F23C2700/02—Combustion apparatus using liquid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2203/00—Furnace arrangements
- F23G2203/50—Fluidised bed furnace
- F23G2203/501—Fluidised bed furnace with external recirculation of entrained bed material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Description
110:ボイラー部
115:中継部
120:第1の燃料投入部
130:酸化剤注入部
131:第1のノズル
132:第2のノズル
133:第3のノズル
134:第4のノズル
135:第5のノズル
140:水管部
150:ライザー部
160:第2の燃料投入部
170:第1のサイクロン部
180:第2のサイクロン部
190:熱交換部
191:再熱器
192:対流熱交換器
Claims (15)
- 内部に燃料及び酸化剤が投入されるように設けられたボイラー部と、
前記ボイラー部と結合され、前記ボイラー部から与えられた燃料及び流動砂が下側から流れ込んで上昇するように設けられるライザー部と、
前記ボイラー部の上側に設けられ、前記ライザー部を通過した流動砂を前記ボイラー部に与える中継部と、
を備え、
前記燃料は、前記ボイラー部の上側から投入され、下降しながら燃焼されるように設けられたことを特徴とする、複数のライザー部を備えた流動砂下降型の循環流動層ボイラー。 - 前記ボイラー部の外壁及び内部空間に設けられるが、前記ボイラー部の高さ方向に延びて複数設けられる水管部をさらに備えることを特徴とする、請求項1に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラー。
- 前記ボイラー部の高さ方向に互いに離間して設けられ、前記ライザー部の下部にさらに設けられる複数の酸化剤注入部をさらに備え、
前記酸化剤注入部は、それぞれ別々に出力が制御され、流動砂及び燃料の下降速度及び燃焼を制御するように設けられたことを特徴とする、請求項1に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラー。 - 前記ボイラー部の上部の一側に設けられ、前記ボイラー部に燃料を投入する第1の燃料投入部をさらに備えることを特徴とする、請求項1に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラー。
- 前記ライザー部の下部の一側に設けられ、前記ライザー部に前記ボイラー部内へ供給される燃料に比べて燃焼速度の速い燃料を投入する第2の燃料投入部をさらに備えることを特徴とする、請求項1に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラー。
- 前記ライザー部は、前記ボイラー部の周りに沿って、あるいは、前記ボイラー部の内部に複数設けられることを特徴とする、請求項1に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラー。
- 前記ボイラー部及び前記ライザー部と結合されるように設けられ、燃料が燃焼されることによって生成された燃焼ガスを用いて熱交換を行うように設けられた熱交換部をさらに備えることを特徴とする、請求項1に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラー。
- 前記ライザー部と前記中継部との間に設けられる第1のサイクロン部をさらに備え、
前記第1のサイクロン部は、前記ライザー部を通過しながら加熱された燃焼ガスを前記熱交換部の最終過熱器または再熱器に移送するように設けられたことを特徴とする、請求項7に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラー。 - 前記ボイラー部の上部と結合されるように設けられる第2のサイクロン部をさらに備え、
前記第2のサイクロン部は、前記ボイラー部において、生成された燃焼ガスを熱交換部の対流熱交換器に移送することを特徴とする、請求項7に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラー。 - 請求項1に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラーの運転方法において、
a)複数の前記ライザー部それぞれの運転モード及び運転するか否かを決定するステップと、
b)前記ボイラー部に燃料及び酸化剤を投入して前記燃料を燃焼させるステップと、
c)前記ライザー部が、前記ボイラー部から前記燃料及び前記流動砂を与えられて第1のサイクロン部に向かって移送するステップと、
d)前記第1のサイクロン部に移送されながら加熱された燃焼ガスを熱交換器の再熱器に移送し、前記流動砂は中継部に移送するステップと、
e)前記中継部に移送された前記流動砂を前記ボイラー部に再供給するステップと、
を含み、
前記ボイラー部において、前記燃料は下降しながら燃焼され、前記ライザー部において、前記燃料は上昇しながら燃焼されるように設けられたことを特徴とする、複数のライザー部を備えた流動砂下降型の循環流動層ボイラーの運転方法。 - 前記ステップb)において、
前記ボイラー部内において前記燃料が燃焼されることによって生成された燃焼ガスは、第2のサイクロン部を通過して熱交換部の対流熱交換器に移送されることを特徴とする、請求項10に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラーの運転方法。 - 前記ステップb)において、
前記ボイラー部内に酸化剤を注入する複数の酸化剤注入部は、それぞれ別々に出力が制御され、前記流動砂及び燃料の下降速度及び燃焼を制御するように設けられたことを特徴とする、請求項10に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラーの運転方法。 - 前記ステップc)において、
前記ライザー部には、前記ボイラー部内へ供給される燃料に比べて燃焼速度の速い燃料がさらに供給されることを特徴とする、請求項10に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラーの運転方法。 - 前記ステップa)において、
前記運転モードは、純酸素燃焼モード及び空気燃焼モードであることを特徴とする、請求項10に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラーの運転方法。 - 請求項1に記載の複数のライザー部を備えた流動砂下降型の循環流動層ボイラーを用いる、発電設備。
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KR10-2018-0083756 | 2018-07-19 | ||
KR1020180083756A KR102093302B1 (ko) | 2018-07-19 | 2018-07-19 | 복수의 라이저부를 구비한 유동사 하강형 순환유동층 보일러 및 이의 운전방법 |
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JP2020012627A JP2020012627A (ja) | 2020-01-23 |
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US (1) | US11333349B2 (ja) |
EP (1) | EP3597996B1 (ja) |
JP (1) | JP6830122B2 (ja) |
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US11333349B2 (en) | 2022-05-17 |
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EP3597996B1 (en) | 2021-06-02 |
JP2020012627A (ja) | 2020-01-23 |
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