CN110259654A - Solar energy humid air turbine water-electricity cogeneration system and its working method - Google Patents
Solar energy humid air turbine water-electricity cogeneration system and its working method Download PDFInfo
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- 239000002918 waste heat Substances 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 238000007791 dehumidification Methods 0.000 description 2
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
- F03G6/064—Devices for producing mechanical power from solar energy with solar energy concentrating means having a gas turbine cycle, i.e. compressor and gas turbine combination
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
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Abstract
本发明公开了一种太阳能湿空气透平水电联产系统及其工作方法，属于工业节能技术领域。该系统包括太阳能湿空气透平子系统和淡水循环子系统；其中太阳能湿空气透平子系统主要包括压气机、饱和器、太阳能集热器、水轮机、发电机、燃气轮机等设备；淡水循环子系统主要包括填料塔、海水泵、换热器、循环泵以及水箱等设备。其特征在于：本发明提出的水电联产系统为水闭气开式，可以同时满足用户对水负荷和电负荷的要求，特别是在淡水循环子系统中充分利用透平后的高温湿空气余热，采用淡水循环设计将冷凝潜热高效传递给来料海水，以此来提高能量梯级利用效率，减少系统能耗。本系统具有运行稳定、发电效率高、能耗低等优点。
The invention discloses a solar wet air turbine hydropower cogeneration system and a working method thereof, which belong to the technical field of industrial energy saving. The system includes a solar wet air turbine subsystem and a fresh water circulation subsystem; the solar wet air turbine subsystem mainly includes compressors, saturators, solar collectors, water turbines, generators, gas turbines and other equipment; the fresh water circulation subsystem mainly includes Packed towers, sea water pumps, heat exchangers, circulating pumps, water tanks and other equipment. It is characterized in that the hydropower cogeneration system proposed by the present invention is a water-closed-air-open type, which can meet the user's requirements for water load and electric load at the same time, especially in the fresh water circulation subsystem, which fully utilizes the waste heat of high-temperature and humid air after the turbine, The fresh water circulation design is adopted to efficiently transfer the latent heat of condensation to the incoming seawater, so as to improve the utilization efficiency of energy cascades and reduce the energy consumption of the system. The system has the advantages of stable operation, high power generation efficiency and low energy consumption.
Description
技术领域technical field
本发明设计了一种太阳能湿空气透平水电联产系统及其工作方法，属于工业节能技术领域。The invention designs a solar wet air turbine hydropower cogeneration system and its working method, belonging to the technical field of industrial energy saving.
背景技术Background technique
分布式能源系统（Distributed Energy System）在许多国家、地区已经是一种成熟的能源综合利用技术，它以靠近用户、梯级利用、一次能源利用效率高、环境友好、能源供应安全可靠等特点，受到各国政府、企业界的广泛关注、青睐。分布式能源系统已经呈现出多种形式，区域化或建筑群或独立的大中型企业的水电联供是其中一种十分重要的形式。受我国能源结构的影响，目前我国的水电供需还大多以集中式供能方式完成，而随着社会的快速发展，新型的水电联产系统层出不穷，以应对现有社会结构的高要求。作为新一代供能方式，水电联产系统尚不完善，效率低、产能低以及能量利用率低等问题数不胜数。Distributed Energy System (Distributed Energy System) is already a mature energy comprehensive utilization technology in many countries and regions. It is close to users, cascade utilization, high efficiency of primary energy utilization, environment-friendly, safe and reliable energy supply, etc. It has received wide attention and favor from governments and business circles of various countries. Distributed energy systems have taken many forms, regionalization or combined hydropower supply of buildings or independent large and medium-sized enterprises is one of the very important forms. Affected by my country's energy structure, most of my country's hydropower supply and demand are currently completed in a centralized energy supply mode. With the rapid development of society, new hydropower cogeneration systems emerge in an endless stream to meet the high requirements of the existing social structure. As a new-generation energy supply method, the cogeneration system of hydropower is not yet perfect, and there are numerous problems such as low efficiency, low production capacity, and low energy utilization rate.
如何提高水电联产系统的能源利用效率，简化现有系统结构，使其具有良好的经济效益和社会效益,是目前亟待解决的问题。How to improve the energy utilization efficiency of the hydropower cogeneration system, simplify the existing system structure, and make it have good economic and social benefits is an urgent problem to be solved at present.
发明内容Contents of the invention
本发明针对现有水电联产系统热效率低、能耗大等问题，提出一种热效率高、能耗小的太阳能驱动湿空气透平水电联产系统。Aiming at the problems of low thermal efficiency and high energy consumption of the existing hydropower cogeneration system, the invention proposes a solar-driven humid air turbine hydropower cogeneration system with high thermal efficiency and low energy consumption.
一种太阳能湿空气透平水电联产系统，包括太阳能湿空气透平子系统和淡水循环子系统,其特征在于：其中太阳能湿空气透平子系统包括压气机、饱和器、太阳能集热器、水轮机、第一连接轴、第一发电机、燃气轮机、第二连接轴、第二发电机和第三连接轴；压气机出口与饱和器湿空气侧进口相连, 饱和器湿空气侧出口与太阳能集热器进口相连，太阳能集热器出口与燃气轮机进口相连；压气机和燃气轮机通过第三连接轴相连，水轮机和第一发电机通过第一连接轴相连，燃气轮机和第二发电机通过第二连接轴相连；其中淡水循环子系统包括填料塔、海水泵、换热器、循环泵、阀门和水箱；太阳能湿空气透平子系统中的燃气轮机出口与填料塔湿空气侧进口相连，填料塔湿空气侧出口与大气相通；填料塔淡水侧出口与换热器淡水侧进口相连，换热器淡水侧出口一路通过阀门与水箱进口相连；另一路通过循环泵与填料塔淡水侧进口相连；海水泵出口与换热器海水侧进口相连，换热器海水侧出口与太阳能湿空气透平子系统中的饱和器海水侧进口相连，饱和器海水侧出口与水轮机进口相连，水轮机出口与大气相通；A solar wet air turbine hydropower cogeneration system, comprising a solar wet air turbine subsystem and a fresh water circulation subsystem, characterized in that: wherein the solar wet air turbine subsystem includes a compressor, a saturator, a solar heat collector, a water turbine, The first connecting shaft, the first generator, the gas turbine, the second connecting shaft, the second generator and the third connecting shaft; the outlet of the compressor is connected to the inlet of the humid air side of the saturator, and the outlet of the humid air side of the saturator is connected to the solar collector The inlet is connected, the outlet of the solar heat collector is connected with the inlet of the gas turbine; the compressor and the gas turbine are connected through the third connecting shaft, the water turbine and the first generator are connected through the first connecting shaft, and the gas turbine and the second generator are connected through the second connecting shaft; The fresh water circulation subsystem includes a packed tower, seawater pump, heat exchanger, circulation pump, valves and water tank; the outlet of the gas turbine in the solar wet air turbine subsystem is connected to the inlet of the wet air side of the packed tower, and the outlet of the wet air side of the packed tower is connected to the atmosphere. Connected; the fresh water side outlet of the packed tower is connected to the fresh water side inlet of the heat exchanger, and one way of the fresh water side outlet of the heat exchanger is connected to the water tank inlet through a valve; the other way is connected to the fresh water side inlet of the packed tower through a circulating pump; the sea water pump outlet is connected to the heat exchanger The seawater side inlet is connected, the seawater side outlet of the heat exchanger is connected with the seawater side inlet of the saturator in the solar wet air turbine subsystem, the seawater side outlet of the saturator is connected with the turbine inlet, and the turbine outlet is connected with the atmosphere;
所述的太阳能湿空气透平水电联产系统的工作方法，其特征在于：在太阳能湿空气透平子系统中，湿空气首先通过压气机压缩，升温升压后的湿空气进入饱和器加湿，然后进入太阳能集热器加热升温，高温高压的湿空气进入燃气轮机膨胀做功，在第二连接轴和第三连接轴的作用下同时带动第二发电机发电和压气机工作。The working method of the solar wet air turbine hydropower cogeneration system is characterized in that: in the solar wet air turbine subsystem, the wet air is first compressed by the compressor, and the humid air after the temperature rise and boost enters the saturator for humidification, and then Entering the solar heat collector to heat up, high temperature and high pressure humid air enters the gas turbine to expand and do work, and under the action of the second connecting shaft and the third connecting shaft, it simultaneously drives the second generator to generate electricity and the compressor to work.
在淡水循环子系统中，来自太阳能湿空气透平子系统中燃气轮机的高温湿空气进入填料塔内进行除湿降温，降温后的湿空气排出系统；在填料塔底部冷凝得到的淡水进入换热器中加热由海水泵加压进入系统的海水，降温后的淡水分为两路：一路进入水箱进行储存，一路通过循环泵进入填料塔冷凝湿空气，进而得到淡水完成循环，淡水循环量由与水箱支路串联的阀门控制；加热后的海水进入太阳能湿空气透平子系统中的饱和器加湿湿空气，然后进入水轮机中做功，同时通过第一连接轴带动第一发电机发电，做功后的浓海水排出系统。In the fresh water circulation subsystem, the high-temperature humid air from the gas turbine in the solar wet air turbine subsystem enters the packed tower for dehumidification and cooling, and the cooled humid air is discharged out of the system; the fresh water condensed at the bottom of the packed tower enters the heat exchanger for heating The seawater is pressurized by the seawater pump and enters the system, and the fresh water after cooling is divided into two paths: one path enters the water tank for storage, and the other path enters the packed tower through the circulation pump to condense humid air, and then obtains fresh water to complete the cycle. Series valve control; the heated seawater enters the saturator in the solar humid air turbine subsystem to humidify the air, then enters the water turbine to do work, and at the same time drives the first generator to generate electricity through the first connecting shaft, and the concentrated seawater after work is discharged from the system .
本发明的有益效果是：本发明提出的水电联产系统为开式湿空气热力循环结构形式，其中在太阳能湿空气透平子系统中采用太阳能驱动,为系统提供能量，并回收浓缩海水势能用以发电；而在淡水循环子系统中充分利用透平后的高温湿空气余热，采用淡水循环设计将冷凝潜热传递给来料海水，以此来提高能量梯级利用效率，同时满足用户对水负荷和电负荷的要求；这样不仅节省了热蒸汽能源的供应，还提高了燃气轮机的发电效率，具有良好的经济效益和社会效益。The beneficial effects of the present invention are: the hydropower cogeneration system proposed by the present invention is an open humid air thermodynamic cycle structure, wherein the solar humid air turbine subsystem is driven by solar energy to provide energy for the system, and recover the concentrated seawater potential energy for In the fresh water circulation subsystem, the waste heat of high temperature and humid air after the turbine is fully utilized, and the latent heat of condensation is transferred to the incoming seawater by using the fresh water circulation design, so as to improve the utilization efficiency of the energy cascade and meet the user's demand for water load and electricity. This not only saves the supply of hot steam energy, but also improves the power generation efficiency of the gas turbine, which has good economic and social benefits.
附图说明Description of drawings
图1为本发明提出的太阳能湿空气透平水电联产系统流程图；Fig. 1 is the flow chart of the solar wet air turbine hydropower cogeneration system proposed by the present invention;
图中标号名称：A-太阳能湿空气透平子系统；B-淡水循环子系统；1-压气机；2-饱和器；3-太阳能集热器；4-水轮机；5-第一连接轴；6-第一发电机；7-燃气轮机；8-第二连接轴；9-第二发电机；10-第三连接轴；11-填料塔；12-海水泵；13-换热器；14-循环泵；15-阀门；16-水箱。Label names in the figure: A-solar wet air turbine subsystem; B-fresh water circulation subsystem; 1-compressor; 2-saturator; 3-solar collector; 4-water turbine; 5-first connecting shaft; 6 -first generator; 7-gas turbine; 8-second connecting shaft; 9-second generator; 10-third connecting shaft; 11-packed tower; 12-sea water pump; 13-heat exchanger; 14-circulation Pump; 15-valve; 16-water tank.
具体实施方法Specific implementation method
图1是本发明提出的太阳能湿空气透平水电联产系统，下面参照图1说明系统的工作过程：Fig. 1 is the solar wet air turbine hydropower cogeneration system that the present invention proposes, below with reference to Fig. 1 explanation system working process:
在太阳能湿空气透平子系统A中，湿空气首先通过压气机1压缩，升温升压后的湿空气进入饱和器2加湿，然后进入太阳能集热器3加热升温，高温高压的湿空气进入燃气轮机7膨胀做功，在第二连接轴8和第三连接轴10的作用下同时带动第二发电机9发电和压气机1工作。In the solar humid air turbine subsystem A, the humid air is first compressed by the compressor 1, and the heated and pressurized humid air enters the saturator 2 for humidification, and then enters the solar collector 3 for heating and heating, and the high temperature and high pressure humid air enters the gas turbine 7 The expansion works, and under the action of the second connecting shaft 8 and the third connecting shaft 10, the second generator 9 is driven to generate electricity and the compressor 1 is operated.
在淡水循环子系统B中，来自太阳能湿空气透平子系统A中燃气轮机7的高温湿空气进入填料塔11内进行除湿降温，降温后的湿空气排出系统；在填料塔11底部冷凝得到的淡水进入换热器13中加热由海水泵12加压进入系统的海水，降温后的淡水分为两路：一路进入水箱16进行储存，另一路通过循环泵14进入填料塔11冷凝湿空气，进而得到淡水，完成循环；淡水循环量由与水箱16支路串联的阀门15控制；加热后的海水进入太阳能湿空气透平子系统A中的饱和器2加湿湿空气，然后进入水轮机4中做功，同时通过第一连接轴5带动第一发电机6发电，做功后的浓海水排出系统。In the fresh water circulation subsystem B, the high-temperature humid air from the gas turbine 7 in the solar wet air turbine subsystem A enters the packed tower 11 for dehumidification and cooling, and the cooled humid air is discharged from the system; the fresh water condensed at the bottom of the packed tower 11 enters The heat exchanger 13 heats the seawater that is pressurized by the seawater pump 12 and enters the system, and the fresh water after cooling is divided into two paths: one path enters the water tank 16 for storage, and the other path enters the packed tower 11 through the circulation pump 14 to condense humid air, and then fresh water is obtained , to complete the cycle; the amount of fresh water circulation is controlled by the valve 15 connected in series with the water tank 16 branches; the heated seawater enters the saturator 2 in the solar wet air turbine subsystem A to humidify the air, then enters the water turbine 4 to do work, and at the same time passes through the first A connecting shaft 5 drives the first generator 6 to generate electricity, and the concentrated seawater after doing work is discharged from the system.
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| CN113417703A (en) * | 2021-05-31 | 2021-09-21 | 南京航空航天大学 | Solar wet helium turbine circulation electricity-water-salt three-coproduction zero-emission system and method |
| CN114151297A (en) * | 2021-12-02 | 2022-03-08 | 南京航空航天大学 | Solar-driven wet helium circulating hydropower cogeneration system and working method |
| CN116370979A (en) * | 2023-01-18 | 2023-07-04 | 南京航空航天大学 | Compressed air energy storage pressure-variable circulation humidification dehumidification evaporation concentration system and method |
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