CN117869006A - A coke oven riser waste heat recovery power generation process and system - Google Patents
A coke oven riser waste heat recovery power generation process and system Download PDFInfo
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- 239000000571 coke Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000010248 power generation Methods 0.000 title claims abstract description 18
- 239000002918 waste heat Substances 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 110
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 49
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims 3
- 230000005494 condensation Effects 0.000 claims 3
- 230000001174 ascending effect Effects 0.000 claims 2
- 210000004907 gland Anatomy 0.000 claims 2
- 238000006392 deoxygenation reaction Methods 0.000 claims 1
- 239000003034 coal gas Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004939 coking Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/10—Arrangements for using waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
本发明提供了一种焦炉上升管余热回收发电工艺方法及系统，充分利用富余的水蒸汽生产电能,从而提高经济效益；取消除氧器,从而避免了除氧器布置及运维问题。凝结水箱中的凝结水经汽包给水泵加压后送至凝结水加热器加热，而后进入汽包底部，与饱和水混合称为汽包水；汽包水经换热器给水泵加压送至焦炉上升管换热器，在这里汽包水与荒煤气间接换热形成汽水混合物；汽水混合物经管道送至汽包，在这里分离成饱和水与饱和蒸汽；饱和水与凝结水混合，形成循环；饱和蒸汽送至饱和蒸汽汽轮机，饱和蒸汽在这里做功，带动发电机旋转生产电力；饱和蒸汽做动后参数降低称为乏汽，经凝汽器冷却成凝结水并完成除氧，之后进入凝结水箱，形成循环。
The present invention provides a coke oven riser waste heat recovery power generation process method and system, which fully utilizes surplus water vapor to produce electricity, thereby improving economic benefits; the deaerator is eliminated, thereby avoiding the layout and operation and maintenance problems of the deaerator. The condensate in the condensate tank is pressurized by the drum feed pump and sent to the condensate heater for heating, and then enters the bottom of the drum and is mixed with saturated water to be called drum water; the drum water is pressurized by the heat exchanger feed pump and sent to the coke oven riser heat exchanger, where the drum water and the raw coal gas indirectly exchange heat to form a steam-water mixture; the steam-water mixture is sent to the drum through a pipeline, where it is separated into saturated water and saturated steam; the saturated water is mixed with the condensate to form a cycle; the saturated steam is sent to the saturated steam turbine, where the saturated steam does work and drives the generator to rotate to produce electricity; the parameters of the saturated steam are reduced after the work is done, which is called exhaust steam, cooled into condensate by the condenser and deoxidized, and then enters the condensate tank to form a cycle.
Description
技术领域Technical Field
本发明涉及焦化技术领域，尤其涉及一种焦炉上升管余热回收发电工艺方法及系统。The present invention relates to the field of coking technology, and in particular to a coke oven riser waste heat recovery power generation process method and system.
背景技术Background technique
在现有的技术中，应用最广的典型技术方案是使用除盐水回收荒煤气热量生产蒸后，将其用于供热。这样的方案有如下问题：Among the existing technologies, the most widely used typical technical solution is to use desalted water to recover the heat of raw coal gas to produce steam and then use it for heating. This solution has the following problems:
首先是除氧器的布置问题。在早期的方案中，专门在焦炉附近设置一个多层建筑物，次顶层放置除氧器，除氧器高度是依据除氧器下游水泵的气蚀计算确定。这样的方案土建投资高。在近期的方案中，除氧器位于焦炉煤塔中，但煤塔内空间有限，在需布置焦炉生产检修过程中涉及的附属设备、工具及各个功能空间的情况下，再考虑布置除氧器等热力设备及相关管道，难度较大。The first is the layout of the deaerator. In the early plan, a multi-story building was specially set up near the coke oven, and the deaerator was placed on the second top floor. The height of the deaerator was determined based on the cavitation calculation of the water pump downstream of the deaerator. Such a plan has high civil engineering investment. In the recent plan, the deaerator is located in the coke oven coal tower, but the space in the coal tower is limited. When the auxiliary equipment, tools and various functional spaces involved in the production and maintenance of the coke oven need to be arranged, it is difficult to consider the layout of thermal equipment such as deaerators and related pipelines.
其次是余热回收得到的水蒸汽存在富余、不能全被有效利用。随着越来越多焦化厂余热得到了回收和热回收技术迭代升级，回收的热量越来越多，在以汽水为主要热力工质的背景下，水蒸汽出现了富余，并且富余量越来越大。Secondly, the water vapor obtained from waste heat recovery is in excess and cannot be fully utilized. As more and more waste heat from coking plants is recovered and heat recovery technology is upgraded, more and more heat is recovered. In the context of steam-water as the main thermal working fluid, water vapor is in excess, and the excess is increasing.
发明内容Summary of the invention
为了解决背景技术提出的技术问题，本发明提供了一种焦炉上升管余热回收发电工艺方法及系统，充分利用富余的水蒸汽生产电能,从而提高经济效益；取消除氧器,从而避免了除氧器布置及运维问题。In order to solve the technical problems raised by the background technology, the present invention provides a coke oven riser waste heat recovery power generation process method and system, which fully utilizes surplus water vapor to produce electricity, thereby improving economic benefits; and eliminates the deaerator, thereby avoiding the deaerator layout and operation and maintenance problems.
为了达到上述目的，本发明采用以下技术方案实现：In order to achieve the above object, the present invention adopts the following technical solutions:
一种焦炉上升管余热回收发电工艺方法，所述方法配备饱和蒸汽汽轮机用于利用富余的水蒸汽生产电能并取消除氧器；由包括焦炉上升管换热器、汽包、换热器给水泵、饱和蒸汽汽轮机、凝汽器、凝结水箱、汽包给水泵、凝结水加热器在内的装置实现，包括如下工艺过程：A coke oven riser waste heat recovery power generation process method, the method is equipped with a saturated steam turbine to use surplus water vapor to produce electricity and eliminate the deoxidizer; the method is implemented by a device including a coke oven riser heat exchanger, a steam drum, a heat exchanger feed pump, a saturated steam turbine, a condenser, a condensate tank, a steam drum feed pump, and a condensate heater, and includes the following process:
1)凝结水箱中的凝结水经汽包给水泵加压后送至凝结水加热器加热，而后进入汽包底部，与饱和水混合，称为汽包水；1) The condensate in the condensate tank is pressurized by the drum feed pump and sent to the condensate heater for heating. Then it enters the bottom of the drum and mixes with saturated water, which is called drum water.
2)汽包水经换热器给水泵加压送至焦炉上升管换热器，在这里汽包水与荒煤气间接换热形成汽水混合物；2) The drum water is pressurized by the heat exchanger feed water pump and sent to the coke oven riser heat exchanger, where the drum water and the raw coal gas are indirectly heat exchanged to form a steam-water mixture;
3)汽水混合物经管道送至汽包，在这里分离成饱和水与饱和蒸汽；3) The steam-water mixture is sent to the steam drum through a pipeline, where it is separated into saturated water and saturated steam;
4)饱和水与凝结水混合，形成循环；4) Saturated water and condensed water are mixed to form a cycle;
5)饱和蒸汽经管道送至饱和蒸汽汽轮机，饱和蒸汽在这里做功，推动透平旋转，带动发电机旋转生产电力；5) The saturated steam is sent to the saturated steam turbine through the pipeline, where the saturated steam performs work, driving the turbine to rotate, driving the generator to rotate and produce electricity;
6)饱和蒸汽做动后参数降低称为乏汽，乏汽经凝汽器冷却成凝结水并完成除氧，之后进入凝结水箱，形成循环。6) After the saturated steam is activated, its parameters are reduced and it is called exhaust steam. The exhaust steam is cooled into condensate through the condenser and deoxygenated, and then enters the condensate tank to form a cycle.
进一步地，还包括：在凝结水箱与汽包之间设置汽封加热器，工艺过程为：凝结水箱中的凝结水首先经汽包给水泵加压后送至汽封加热器加热,之后进入凝结水加热器加热。Furthermore, it also includes: setting a steam seal heater between the condensate tank and the steam drum, and the process is: the condensate in the condensate tank is first pressurized by the steam drum feed water pump and then sent to the steam seal heater for heating, and then enters the condensate heater for heating.
本发明还提供用于实现所述的一种焦炉上升管余热回收发电工艺方法的系统，所述系统包括焦炉上升管换热器、汽包、换热器给水泵、饱和蒸汽汽轮机、发电机、凝汽器、凝结水箱、汽包给水泵、凝结水加热器。The present invention also provides a system for implementing the coke oven riser waste heat recovery power generation process method, the system comprising a coke oven riser heat exchanger, a steam drum, a heat exchanger feed pump, a saturated steam turbine, a generator, a condenser, a condensate tank, a steam drum feed pump, and a condensate heater.
焦炉上升管换热器回收焦炉上升管的荒煤气热量生产汽水混合物；汽包与焦炉上升管换热器出口连接，用于分离汽水混合物生产饱和水蒸汽；换热器给水泵连接在汽包与焦炉上升管换热器入口之间，用于将汽包水送至焦炉上升管换热器；饱和蒸汽汽轮机与汽包连接，用于使用汽包的饱和蒸汽生产电能；凝汽器与蒸汽汽轮机的乏汽出口连接，用于将做功后的乏汽冷却成凝结水并除去凝结水中氧含量；发电机与蒸汽汽轮机连接，用于发电；凝结水箱与凝汽器连接，用于贮存凝结水；汽包给水泵与凝结水箱连接，用于将凝结水加压送至汽包；凝结水加热器连接在凝结水箱与汽包之间，用于对凝结水加热提高其温度。The coke oven riser heat exchanger recycles the heat of the raw gas in the coke oven riser to produce a steam-water mixture; the steam drum is connected to the outlet of the coke oven riser heat exchanger to separate the steam-water mixture to produce saturated water vapor; the heat exchanger feed water pump is connected between the steam drum and the inlet of the coke oven riser heat exchanger to send the steam drum water to the coke oven riser heat exchanger; the saturated steam turbine is connected to the steam drum to use the saturated steam of the steam drum to produce electricity; the condenser is connected to the exhaust steam outlet of the steam turbine to cool the exhaust steam after work into condensate and remove the oxygen content in the condensate; the generator is connected to the steam turbine for power generation; the condensate tank is connected to the condenser to store condensate; the steam drum feed water pump is connected to the condensate tank to pressurize the condensate and send it to the steam drum; the condensate heater is connected between the condensate tank and the steam drum to heat the condensate to increase its temperature.
进一步地，还包括汽封加热器，汽封加热器连接在凝结水箱与汽包之间，用于回收汽封用蒸汽热量进行利用。Furthermore, it also includes a steam seal heater, which is connected between the condensate tank and the steam drum and is used to recover the steam heat of the steam seal for utilization.
进一步地，所述凝汽器集成除氧功能。Furthermore, the condenser is integrated with a deoxidation function.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the present invention has the following beneficial effects:
1)本发明的一种焦炉上升管余热回收发电工艺方法及系统，应用于焦化厂，用于回收焦炉上升管热量生产电力，富余的蒸汽被有效充分利用。富余蒸汽被用于生产电力，提高了经济效益。1) A coke oven riser waste heat recovery power generation process method and system of the present invention is applied to a coking plant to recover the heat of the coke oven riser to produce electricity, and the surplus steam is effectively and fully utilized. The surplus steam is used to produce electricity, thereby improving economic benefits.
2)取消了除氧器。取消该设备使工艺系统得到了简化，系统的稳定性得到了提升。大多数除氧器属于压力容器，其内部储存了大量的介质能量，存在一定的隐患和风险,取消该设备提升了系统的安全性。取消该设备意味着不用再为其建造专门的建筑物，节省了设备自身、相关管道及土建投资,减少了占地，还避免相关设计工作。2) Eliminate the deaerator. Eliminating this equipment simplifies the process system and improves the stability of the system. Most deaerators are pressure vessels, which store a large amount of medium energy and have certain hidden dangers and risks. Eliminating this equipment improves the safety of the system. Eliminating this equipment means that there is no need to build a special building for it, saving the equipment itself, related pipelines and civil engineering investment, reducing land occupation, and avoiding related design work.
3)减少了泵的数量。传统方案中需配备凝结水泵、除氧器给水泵、汽包给水泵，本系统中取消了除氧器给水泵。减少了泵投资、远行功耗和占地。3) Reduced number of pumps. The traditional solution requires condensate pumps, deaerator feed pumps, and drum feed pumps. The deaerator feed pump is eliminated in this system. This reduces pump investment, long-distance power consumption, and land occupation.
4)减少了水箱的数量。传统方案中设有凝结水箱和给水箱，本系统中取消了给水箱,适当扩大凝汽器下方凝结水箱，使其承担给水箱的功能。减少了水箱投资和占地。4) Reduced number of water tanks. In the traditional solution, there are condensate tanks and feed water tanks. In this system, the feed water tank is eliminated and the condensate tank under the condenser is appropriately enlarged to make it serve as the feed water tank. This reduces the investment and land occupation of water tanks.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明一种焦炉上升管余热回收发电工艺方法的系统结构图。FIG. 1 is a system structure diagram of a coke oven riser waste heat recovery power generation process method according to the present invention.
图中：1-焦炉炭化室，2-焦炉上升管换热器，3-荒煤气集气管，4-汽包，5-换热器给水泵，6-饱和蒸汽汽轮机，7-发电机，8-凝汽器，9-凝结水箱，10-汽包给水泵，11-凝结水加热器、12-汽封加热器。In the figure: 1-coke oven carbonization chamber, 2-coke oven riser heat exchanger, 3-raw gas collecting pipe, 4-steam drum, 5-heat exchanger feed pump, 6-saturated steam turbine, 7-generator, 8-condenser, 9-condensate tank, 10-steam drum feed pump, 11-condensate heater, 12-steam seal heater.
具体实施方式Detailed ways
下面结合附图对本发明的具体实施方式作进一步说明：The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings:
实施例一Embodiment 1
本实施例提供一种焦炉上升管余热回收发电工艺方法，所述方法充配备饱和蒸汽汽轮机用于利用富余的水蒸汽生产电能并取消除氧器；由包括焦炉炭化室1、焦炉上升管换热器2、荒煤气集气管3、汽包4、换热器给水泵5、饱和蒸汽汽轮机6、发电机7、凝汽器8、凝结水箱9、汽包给水泵10、凝结水加热器11在内的装置实现。The present embodiment provides a process method for recovering waste heat from a coke oven riser for power generation, the method being equipped with a saturated steam turbine for producing electricity using surplus steam and eliminating the deoxidizer; the method is implemented by a device including a coke oven carbonization chamber 1, a coke oven riser heat exchanger 2, a raw gas collecting pipe 3, a steam drum 4, a heat exchanger feed water pump 5, a saturated steam turbine 6, a generator 7, a condenser 8, a condensate tank 9, a steam drum feed water pump 10, and a condensate heater 11.
所述工艺方法包括如下工艺过程：The process includes the following steps:
1)凝结水箱9中的凝结水经汽包给水泵10加压后送至凝结水加热器11加热，而后进入汽包4底部，与饱和水混合，称为汽包水；1) The condensate in the condensate tank 9 is pressurized by the drum feed pump 10 and sent to the condensate heater 11 for heating, and then enters the bottom of the drum 4 and mixes with the saturated water, which is called drum water;
2)汽包水经换热器给水泵5加压送至焦炉上升管换热器2，在这里汽包水与荒煤气间接换热形成汽水混合物；2) The drum water is pressurized by the heat exchanger feed water pump 5 and sent to the coke oven riser heat exchanger 2, where the drum water and the raw coal gas are indirectly heat exchanged to form a steam-water mixture;
3)汽水混合物经管道送至汽包4，在这里分离成饱和水与饱和蒸汽；3) The steam-water mixture is sent to the steam drum 4 through a pipeline, where it is separated into saturated water and saturated steam;
4)饱和水与凝结水混合，形成循环；4) Saturated water and condensed water are mixed to form a cycle;
5)饱和蒸汽经管道送至饱和蒸汽汽轮机6，饱和蒸汽在这里做功，推动透平旋转，带动发电机7旋转生产电力；5) The saturated steam is sent to the saturated steam turbine 6 through the pipeline, where the saturated steam performs work, driving the turbine to rotate, and driving the generator 7 to rotate to produce electricity;
6)饱和蒸汽做动后参数降低称为乏汽，乏汽经凝汽器8冷却成凝结水并完成除氧，之后进入凝结水箱9，形成循环。6) After the saturated steam is activated, its parameters are reduced and it is called exhaust steam. The exhaust steam is cooled into condensed water and deoxygenated through the condenser 8, and then enters the condensate tank 9 to form a cycle.
进一步地，还包括：在凝结水箱9与汽包4之间设置汽封加热器12，工艺过程为：凝结水箱9中的凝结水首先经汽包给水泵10加压后送至汽封加热器12加热，之后进入凝结水加热器11加热。Furthermore, it also includes: a steam seal heater 12 is set between the condensate tank 9 and the steam drum 4, and the process is: the condensate in the condensate tank 9 is first pressurized by the steam drum feed water pump 10 and then sent to the steam seal heater 12 for heating, and then enters the condensate heater 11 for heating.
实施例二Embodiment 2
本实施例提供用于实现所述的一种焦炉上升管余热回收发电工艺方法的系统，所述系统包括焦炉炭化室1、焦炉上升管换热器2、荒煤气集气管3、汽包4、换热器给水泵5、饱和蒸汽汽轮机6、发电机7、凝汽器8、凝结水9箱、汽包给水泵10、凝结水加热器11。The present embodiment provides a system for realizing the coke oven riser waste heat recovery power generation process method, the system includes a coke oven carbonization chamber 1, a coke oven riser heat exchanger 2, a raw gas collecting pipe 3, a steam drum 4, a heat exchanger feed water pump 5, a saturated steam turbine 6, a generator 7, a condenser 8, a condensate tank 9, a steam drum feed water pump 10, and a condensate heater 11.
焦炉上升管换热器2回收焦炉上升管的荒煤气热量生产汽水混合物；汽包4与焦炉上升管换热器2出口连接，用于分离汽水混合物生产饱和水蒸汽；换热器给水泵5连接在汽包4与焦炉上升管换热器2入口之间，用于将汽包水送至焦炉上升管换热器2；饱和蒸汽汽轮机6与汽包4连接，用于使用汽包4的饱和蒸汽生产电能；凝汽器8与蒸汽汽轮机6的乏汽出口连接，用于将做功后的乏汽冷却成凝结水并除去凝结水中氧含量；发电机7与蒸汽汽轮机6连接，用于发电；凝结水箱9与凝汽器8连接，用于贮存凝结水；汽包给水泵10与凝结水箱9连接，用于将凝结水加压送至汽包4；凝结水加热器11连接在凝结水箱9(汽包给水泵10出口)与汽包4之间，用于对凝结水加热提高其温度。The coke oven riser heat exchanger 2 recovers the heat of the raw gas in the coke oven riser to produce a steam-water mixture; the steam drum 4 is connected to the outlet of the coke oven riser heat exchanger 2 for separating the steam-water mixture to produce saturated water vapor; the heat exchanger feed water pump 5 is connected between the steam drum 4 and the inlet of the coke oven riser heat exchanger 2 for sending the steam drum water to the coke oven riser heat exchanger 2; the saturated steam turbine 6 is connected to the steam drum 4 for using the saturated steam of the steam drum 4 to produce electrical energy; the condenser 8 is connected to the exhaust steam outlet of the steam turbine 6 for cooling the exhaust steam after work into condensate and removing the oxygen content in the condensate; the generator 7 is connected to the steam turbine 6 for power generation; the condensate tank 9 is connected to the condenser 8 for storing condensate; the steam drum feed water pump 10 is connected to the condensate tank 9 for pressurizing the condensate and sending it to the steam drum 4; the condensate heater 11 is connected between the condensate tank 9 (the outlet of the steam drum feed water pump 10) and the steam drum 4 for heating the condensate to increase its temperature.
进一步地，还包括汽封加热器12，汽封加热器12连接在凝结水箱9(汽包给水泵10出口)与汽包4之间，用于回收汽封用蒸汽热量进行利用。Furthermore, it also includes a steam seal heater 12, which is connected between the condensate tank 9 (the outlet of the steam drum feed water pump 10) and the steam drum 4 and is used to recover the steam heat for steam seal use.
进一步地，所述凝汽器8集成除氧功能，集成除氧功能的凝汽器8，冷却乏汽同时，完成了除氧。取消了除氧器给水泵和给水箱。Furthermore, the condenser 8 has an integrated deoxidation function, and the condenser 8 with the integrated deoxidation function cools the exhaust steam while completing deoxidation, thereby eliminating the deoxidizer feed water pump and feed water tank.
综上，本发明技术效果如下：In summary, the technical effects of the present invention are as follows:
1)本发明的一种焦炉上升管余热回收发电工艺方法及系统，应用于焦化厂，用于回收焦炉上升管热量生产电力，富余的蒸汽被有效充分利用。富余蒸汽被用于生产电力，提高了经济效益。1) A coke oven riser waste heat recovery power generation process method and system of the present invention is applied to a coking plant to recover the heat of the coke oven riser to produce electricity, and the surplus steam is effectively and fully utilized. The surplus steam is used to produce electricity, thereby improving economic benefits.
2)取消了除氧器。取消该设备使工艺系统得到了简化，系统的稳定性得到了提升。大多数除氧器属于压力容器，其内部储存了大量的介质能量，存在一定的隐患和风险,取消该设备提升了系统的安全性。取消该设备意味着不用再为其建造专门的建筑物，节省了设备自身、相关管道及土建投资,减少了占地，还避免相关设计工作。2) Eliminate the deaerator. Eliminating this equipment simplifies the process system and improves the stability of the system. Most deaerators are pressure vessels, which store a large amount of medium energy and have certain hidden dangers and risks. Eliminating this equipment improves the safety of the system. Eliminating this equipment means that there is no need to build a special building for it, saving the equipment itself, related pipelines and civil engineering investment, reducing land occupation, and avoiding related design work.
3)减少了泵的数量。传统方案中需配备凝结水泵、除氧器给水泵、汽包给水泵，本系统中取消了除氧器给水泵。减少了泵投资、远行功耗和占地。3) Reduced number of pumps. The traditional solution requires condensate pumps, deaerator feed pumps, and drum feed pumps. The deaerator feed pump is eliminated in this system. This reduces pump investment, long-distance power consumption, and land occupation.
4)减少了水箱的数量。传统方案中设有凝结水箱9和给水箱，本系统中取消了给水箱,适当扩大凝汽器下方凝结水箱，使其承担给水箱的功能。减少了水箱投资和占地。4) Reduced number of water tanks. In the traditional solution, a condensate tank 9 and a feed water tank are provided. In this system, the feed water tank is eliminated and the condensate tank below the condenser is appropriately enlarged to assume the function of the feed water tank. This reduces the investment and land occupation of water tanks.
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.
以上实施例在以本发明技术方案为前提下进行实施，给出了详细的实施方式和具体的操作过程，但本发明的保护范围不限于上述的实施例。本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operation processes are given, but the protection scope of the present invention is not limited to the above embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
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