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CN217602730U - A power generation system coupled with solar energy and compressed air energy storage - Google Patents

A power generation system coupled with solar energy and compressed air energy storage Download PDF

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CN217602730U
CN217602730U CN202221996246.5U CN202221996246U CN217602730U CN 217602730 U CN217602730 U CN 217602730U CN 202221996246 U CN202221996246 U CN 202221996246U CN 217602730 U CN217602730 U CN 217602730U
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cooler
compressor
outlet
inlet
tank
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张明理
普建国
伍刚
高景辉
王涛
张泉
闫文辰
蔺奕存
何洋
李正宽
杨光
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Xian Thermal Power Research Institute Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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    • Y02E60/16Mechanical energy storage, e.g. flywheels or pressurised fluids

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Abstract

The utility model discloses a solar energy and compressed air energy storage coupled power generation system, which comprises a motor, the 1# compressor, the 2# compressor, the 3# compressor, the 4# compressor, the 1# cooler, the 2# cooler, the 3# cooler, the 4# cooler, the cold water jar, the heat supply valve, the hot-water tank, first heat exchanger, the absorption refrigerator, the second heat exchanger, a condenser, the absorption tower, solar energy collection system, a heater, a generator, the turbine, pre-heater and gas holder, the waste heat recovery that the compressor can be solved to this system and the greenhouse gas emission problem of eliminating the combustion chamber, reduce the factory's energy consumption, improve the efficiency of compressor and unit.

Description

一种太阳能与压缩空气储能耦合的发电系统A power generation system coupled with solar energy and compressed air energy storage

技术领域technical field

本实用新型涉及一种发电系统,具体涉及一种太阳能与压缩空气储能耦合的发电系统。The utility model relates to a power generation system, in particular to a power generation system coupled with solar energy and compressed air energy storage.

背景技术Background technique

随着科技和工业的发展,国内对电力的需求日益增加。为满足电力需求,近些年,国内建立了许多传统火电和新能源电站。虽然该方法短时间解决了电力短缺的问题,但也出现了一些新的问题,如环境污染和电网不稳定以及电力供需不匹配。为了解决这些问题,人们进行了大量储能研究。研究发现,使用储能不仅能有助于电网的稳定和削峰填谷,也能促进人与自然和谐发展和可持续发展。With the development of science and technology and industry, the domestic demand for electricity is increasing day by day. In order to meet the electricity demand, many traditional thermal power and new energy power stations have been established in China in recent years. Although this method solved the problem of power shortage in a short time, some new problems have also appeared, such as environmental pollution and grid instability and power supply and demand mismatch. To solve these problems, a lot of energy storage research has been carried out. The study found that the use of energy storage can not only help the stability of the power grid and reduce peaks and fill valleys, but also promote the harmonious and sustainable development of man and nature.

目前,储能主要包括机械类储能、电气类储能、电化学储能、热/冷储能、化学储能等。其中,机械类储能包括抽水蓄能、压缩空气储能和液体空气储能。抽水蓄能目前在国内是一项成熟和应用广泛的技术,而液体空气储能是一项新的和正在开发的技术。但是抽水蓄能受制于地理条件的限制和高度差的限制,而液态空气储能投资大且系统复杂。因此,空气压缩储能技术具有高可靠性、长服务时间、低环境影响和经济可行性。然而,压缩机的余热回收和消除燃烧室的温室气体排放是该技术最大的缺点,目前还没有专利针对此处公开发表过。At present, energy storage mainly includes mechanical energy storage, electrical energy storage, electrochemical energy storage, thermal/cold energy storage, chemical energy storage, etc. Among them, mechanical energy storage includes pumped hydro energy storage, compressed air energy storage and liquid air energy storage. Pumped hydro storage is currently a mature and widely used technology in China, while liquid air energy storage is a new and developing technology. However, pumped hydro storage is limited by geographical conditions and height difference, while liquid air energy storage has a large investment and a complex system. Therefore, compressed air energy storage technology has high reliability, long service time, low environmental impact and economic feasibility. However, the waste heat recovery of the compressor and the elimination of greenhouse gas emissions from the combustor are the biggest drawbacks of this technology, and no patents have been published for this at present.

实用新型内容Utility model content

本实用新型的目的在于克服上述现有技术的缺点,提供了一种太阳能与压缩空气储能耦合的发电系统,该系统能够解决压缩机的余热回收及消除燃烧室的温室气体排放问题,降低厂能耗,提高压缩机及机组的效率。The purpose of this utility model is to overcome the shortcomings of the above-mentioned prior art, and provide a power generation system coupled with solar energy and compressed air energy storage, which can solve the problem of waste heat recovery of the compressor and eliminate the greenhouse gas emission of the combustion chamber, and reduce the power consumption of the plant. energy consumption and improve the efficiency of compressors and units.

为达到上述目的,本实用新型所述的太阳能与压缩空气储能耦合的发电系统包括电动机、1#压缩机、2#压缩机、3#压缩机、4#压缩机、1#冷却器、2#冷却器、3#冷却器、4#冷却器、冷水罐、供热阀门、热水罐、第一换热器、吸收式制冷机、第二换热器、冷凝器、吸收塔、太阳能集热系统、加热器、发电机、透平机、预热器及储气罐;In order to achieve the above purpose, the power generation system for coupling solar energy and compressed air energy storage according to the present invention includes a motor, a 1# compressor, a 2# compressor, a 3# compressor, a 4# compressor, a 1# cooler, and a 2# compressor. #cooler, 3# cooler, 4# cooler, cold water tank, heating valve, hot water tank, first heat exchanger, absorption chiller, second heat exchanger, condenser, absorption tower, solar collector Thermal systems, heaters, generators, turbines, preheaters and air tanks;

1#压缩机的出口依次经1#冷却器的管侧、2#压缩机、2#冷却器的管侧、3#压缩机、3#冷却器的管侧、4#压缩机及4#冷却器的管侧与储气罐的入口相连通,储气罐的出口经预热器的管侧及加热器的壳侧后与透平机的入口相连通,透平机的出口经预热器的壳侧与外界环境相连通;The outlet of the 1# compressor is cooled by the tube side of the 1# cooler, the 2# compressor, the tube side of the 2# cooler, the 3# compressor, the tube side of the 3# cooler, the 4# compressor and the 4# cooler. The pipe side of the preheater is connected with the inlet of the gas storage tank, the outlet of the gas storage tank is connected with the inlet of the turbine through the pipe side of the preheater and the shell side of the heater, and the outlet of the turbine passes through the preheater. The shell side is connected with the external environment;

冷水罐的出口与1#冷却器的壳侧入口、2#冷却器的壳侧入口、3#冷却器的壳侧入口及4#冷却器的壳侧入口相连通,1#冷却器的壳侧出口、2#冷却器的壳侧出口、3#冷却器的壳侧出口及4#冷却器的壳侧出口通过管道并管后与热水罐的入口相连通,热水罐的出口分为两路,其中一路经供热阀门与热用户相连通,另一路经吸收式制冷机的管侧及第一换热器的放热侧与冷水罐的入口相连通;The outlet of the cold water tank is connected with the shell side inlet of the 1# cooler, the shell side inlet of the 2# cooler, the shell side inlet of the 3# cooler and the shell side inlet of the 4# cooler, and the shell side of the 1# cooler The outlet, the shell side outlet of the 2# cooler, the shell side outlet of the 3# cooler and the shell side outlet of the 4# cooler are connected with the inlet of the hot water tank through pipes and pipes, and the outlet of the hot water tank is divided into two parts. One way is connected to the heat user through the heating valve, and the other way is connected to the inlet of the cold water tank through the tube side of the absorption refrigerator and the heat release side of the first heat exchanger;

吸收塔的底部出口经第二换热器的管侧与吸收式制冷机的壳侧入口相连通,吸收式制冷机的壳侧出口分为两路,其中一路经冷凝器与吸收塔的入口相连通,另一路经第二换热器的壳侧与吸收塔的入口相连通,太阳能集热系统与吸收式制冷机的管侧相连通。The bottom outlet of the absorption tower is connected to the shell side inlet of the absorption chiller through the tube side of the second heat exchanger, and the shell side outlet of the absorption chiller is divided into two paths, one of which is connected to the inlet of the absorption tower via the condenser The other path is connected with the inlet of the absorption tower through the shell side of the second heat exchanger, and the solar heat collection system is connected with the tube side of the absorption refrigerator.

储气罐的出口经压力调节器、预热器的管侧及加热器的壳侧后与透平机的入口相连通。The outlet of the gas storage tank is communicated with the inlet of the turbine after passing through the pressure regulator, the pipe side of the preheater and the shell side of the heater.

冷水罐的出口经冷水塔循环水泵与1#冷却器的壳侧入口、2#冷却器的壳侧入口、3#冷却器的壳侧入口及4#冷却器的壳侧入口相连通。The outlet of the cold water tank is connected with the shell side inlet of the 1# cooler, the shell side inlet of the 2# cooler, the shell side inlet of the 3# cooler and the shell side inlet of the 4# cooler through the cold water tower circulating water pump.

热水罐的出口经热水塔循环水泵后分为两路。The outlet of the hot water tank is divided into two paths after the circulating water pump of the hot water tower.

吸收塔的底部出口经工质泵及第二换热器的管侧与吸收式制冷机的壳侧入口相连通。The bottom outlet of the absorption tower is communicated with the shell side inlet of the absorption refrigerator through the working fluid pump and the tube side of the second heat exchanger.

太阳能集热系统包括太阳接收塔、定日镜、冷罐熔盐循环泵、热熔盐罐、冷熔盐罐及热罐熔盐循环泵;The solar heat collection system includes a solar receiving tower, a heliostat, a cold tank molten salt circulation pump, a hot molten salt tank, a cold molten salt tank and a hot tank molten salt circulation pump;

太阳接收塔的出口与热熔盐罐的入口相连通,热熔盐罐的出口经热罐熔盐循环泵与加热器的管侧入口相连通,加热器的管侧出口与冷熔盐罐的入口相连通,冷熔盐罐的出口经冷罐熔盐循环泵与太阳接收塔的入口相连通,太阳接收塔的周围设置有定日镜。The outlet of the solar receiving tower is connected with the inlet of the hot molten salt tank, the outlet of the hot molten salt tank is communicated with the pipe side inlet of the heater through the hot tank molten salt circulation pump, and the pipe side outlet of the heater is connected with the cold molten salt tank. The inlet is connected, the outlet of the cold molten salt tank is communicated with the inlet of the sun receiving tower through the cold tank molten salt circulation pump, and a heliostat is arranged around the sun receiving tower.

电动机与1#压缩机、2#压缩机、3#压缩机及4#压缩机同轴布置。The motor is arranged coaxially with the 1# compressor, 2# compressor, 3# compressor and 4# compressor.

发电机的驱动轴与透平机的输出轴相连接。The drive shaft of the generator is connected with the output shaft of the turbine.

本实用新型具有以下有益效果:The utility model has the following beneficial effects:

本实用新型所述的太阳能与压缩空气储能耦合的发电系统在具体操作时,在1#压缩机、2#压缩机、3#压缩机及4#压缩机之间以及4#压缩机之后分别设置有1#冷却器、2#冷却器、3#冷却器及4#冷却器,以回收压缩机的余热,同时降低压缩机的功耗,并减小储气罐的体积,提高压缩机的压缩比,另外,采用太阳能集热系统产生的热量对压缩后空气进行加热,再送入透平机中做功发电,以消除燃烧室的温室气体排放问题,降低厂能耗,提高压缩机和机组的效率。During the specific operation of the power generation system of the utility model coupled with the solar energy and the compressed air energy storage, the 1# compressor, the 2# compressor, the 3# compressor and the 4# compressor and after the 4# compressor are respectively operated. There are 1# cooler, 2# cooler, 3# cooler and 4# cooler to recover the waste heat of the compressor, reduce the power consumption of the compressor, reduce the volume of the air storage tank, and improve the compressor's performance. Compression ratio, in addition, the compressed air is heated by the heat generated by the solar heat collection system, and then sent to the turbine to generate power, so as to eliminate the greenhouse gas emission problem of the combustion chamber, reduce the energy consumption of the plant, and improve the compressors and units. efficiency.

附图说明Description of drawings

图1为本实用新型的结构示意图。Figure 1 is a schematic structural diagram of the utility model.

其中,1为电动机、2为1#压缩机、3为2#压缩机、4为3#压缩机、5为4#压缩机、6为1#冷却器、7为2#冷却器、8为3#冷却器、9为4#冷却器、10为冷水塔循环水泵、11为冷水罐、12为供热阀门、13为热水罐、14为热水塔循环水泵、15为第一换热器、16为吸收式制冷机、17为第二换热器、18为冷凝器、19为工质泵、20为吸收塔、21为太阳接收塔、22为定日镜、23为冷罐熔盐循环泵、24为热熔盐罐、25为冷熔盐罐、26为加热器、27为热罐熔盐循环泵、28为发电机、29为透平机、30为预热器、31为储气罐、32为压力调节器。Among them, 1 is a motor, 2 is a 1# compressor, 3 is a 2# compressor, 4 is a 3# compressor, 5 is a 4# compressor, 6 is a 1# cooler, 7 is a 2# cooler, and 8 is a 3# cooler, 9 is 4# cooler, 10 is cold water tower circulating water pump, 11 is cold water tank, 12 is heating valve, 13 is hot water tank, 14 is hot water tower circulating water pump, 15 is first heat exchange 16 is an absorption refrigerator, 17 is a second heat exchanger, 18 is a condenser, 19 is a working fluid pump, 20 is an absorption tower, 21 is a solar receiving tower, 22 is a heliostat, and 23 is a cold tank melting Salt circulation pump, 24 is a hot molten salt tank, 25 is a cold molten salt tank, 26 is a heater, 27 is a hot tank molten salt circulation pump, 28 is a generator, 29 is a turbine, 30 is a preheater, 31 is the gas storage tank, and 32 is the pressure regulator.

具体实施方式Detailed ways

为了使本技术领域的人员更好地理解本实用新型方案,下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分的实施例,不是全部的实施例,而并非要限制本实用新型公开的范围。此外,在以下说明中,省略了对公知结构和技术的描述,以避免不必要的混淆本实用新型公开的概念。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本实用新型保护的范围。In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the disclosure of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

在附图中示出了根据本实用新型公开实施例的结构示意图。这些图并非是按比例绘制的,其中为了清楚表达的目的,放大了某些细节,并且可能省略了某些细节。图中所示出的各种区域、层的形状及它们之间的相对大小、位置关系仅是示例性的,实际中可能由于制造公差或技术限制而有所偏差,并且本领域技术人员根据实际所需可以另外设计具有不同形状、大小、相对位置的区域/层。The accompanying drawings show a schematic structural diagram of an embodiment according to the disclosure of the present invention. The figures are not to scale, some details have been exaggerated for clarity, and some details may have been omitted. The shapes of various regions and layers shown in the figures and their relative sizes and positional relationships are only exemplary, and in practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art should Regions/layers with different shapes, sizes, relative positions can be additionally designed as desired.

参考图1,本实用新型所述的太阳能与压缩空气储能耦合的发电系统包括电动机1、1#压缩机2、2#压缩机3、3#压缩机4、4#压缩机5、1#冷却器6、2#冷却器7、3#冷却器8、4#冷却器9、冷水塔循环水泵10、冷水罐11、供热阀门12、热水罐13、热水塔循环水泵14、第一换热器15、吸收式制冷机16、第二换热器17、冷凝器18、工质泵19、吸收塔20、太阳接收塔21、定日镜22、冷罐熔盐循环泵23、热熔盐罐24、冷熔盐罐25、加热器26、热罐熔盐循环泵27、发电机28、透平机29、预热器30、储气罐31及压力调节器32;Referring to FIG. 1, the power generation system of the utility model coupled with solar energy and compressed air energy storage includes a motor 1, a 1# compressor 2, a 2# compressor 3, a 3# compressor 4, a 4# compressor 5, and a 1# compressor. Cooler 6, 2# cooler 7, 3# cooler 8, 4# cooler 9, cold water tower circulating water pump 10, cold water tank 11, heating valve 12, hot water tank 13, hot water tower circulating water pump 14, A heat exchanger 15, an absorption refrigerator 16, a second heat exchanger 17, a condenser 18, a working fluid pump 19, an absorption tower 20, a solar receiving tower 21, a heliostat 22, a cold tank molten salt circulating pump 23, Hot molten salt tank 24, cold molten salt tank 25, heater 26, hot tank molten salt circulation pump 27, generator 28, turbine 29, preheater 30, gas storage tank 31 and pressure regulator 32;

1#压缩机2的出口依次经1#冷却器6的管侧、2#压缩机3、2#冷却器7的管侧、3#压缩机4、3#冷却器8的管侧、4#压缩机5及4#冷却器9的管侧与储气罐31的入口相连通,储气罐31的出口经压力调节器32、预热器30的管侧及加热器26的壳侧后与透平机29的入口相连通,透平机29的出口经预热器30的壳侧与外界环境相连通。The outlet of 1# compressor 2 passes through the tube side of 1# cooler 6, the 2# compressor 3, the tube side of 2# cooler 7, the 3# compressor 4, the tube side of 3# cooler 8, the 4# The tube sides of compressor 5 and 4# cooler 9 are communicated with the inlet of the air storage tank 31, and the outlet of the air storage tank 31 is connected with the pressure regulator 32, the tube side of the preheater 30 and the shell side of the heater 26. The inlet of the turbine 29 is communicated with, and the outlet of the turbine 29 is communicated with the external environment through the shell side of the preheater 30 .

冷水罐11的出口经冷水塔循环水泵10与1#冷却器6的壳侧入口、2#冷却器7的壳侧入口、3#冷却器8的壳侧入口及4#冷却器9的壳侧入口相连通,1#冷却器6的壳侧出口、2#冷却器7的壳侧出口、3#冷却器8的壳侧出口及4#冷却器9的壳侧出口通过管道并管后与热水罐13的入口相连通,热水罐13的出口经热水塔循环水泵14后分为两路,其中一路经供热阀门12与热用户相连通,另一路经吸收式制冷机16的管侧及第一换热器15的放热侧与冷水罐11的入口相连通。The outlet of the cold water tank 11 passes through the cold water tower circulating water pump 10 and the shell side inlet of the 1# cooler 6, the shell side inlet of the 2# cooler 7, the shell side inlet of the 3# cooler 8 and the shell side of the 4# cooler 9. The inlets are connected, the shell side outlet of 1# cooler 6, the shell side outlet of 2# cooler 7, the shell side outlet of 3# cooler 8 and the shell side outlet of 4# cooler 9 pass through pipes and pipes together with the heat. The inlet of the water tank 13 is connected, and the outlet of the hot water tank 13 is divided into two paths after passing through the hot water tower circulating water pump 14. The side and the heat release side of the first heat exchanger 15 communicate with the inlet of the cold water tank 11 .

吸收塔20的底部出口经工质泵19及第二换热器17的管侧与吸收式制冷机16的壳侧入口相连通,吸收式制冷机16的壳侧出口分为两路,其中一路经冷凝器18与吸收塔20的入口相连通,另一路经第二换热器17的壳侧与吸收塔20的入口相连通。The bottom outlet of the absorption tower 20 is communicated with the shell side inlet of the absorption refrigerator 16 through the working fluid pump 19 and the tube side of the second heat exchanger 17. The shell side outlet of the absorption refrigerator 16 is divided into two paths, one of which is one path. It is communicated with the inlet of the absorption tower 20 through the condenser 18 , and the other way is communicated with the inlet of the absorption tower 20 through the shell side of the second heat exchanger 17 .

太阳接收塔21的出口与热熔盐罐24的入口相连通,热熔盐罐24的出口经热罐熔盐循环泵27与加热器26的管侧入口相连通,加热器26的管侧出口与冷熔盐罐25的入口相连通,冷熔盐罐25的出口经冷罐熔盐循环泵23与太阳接收塔21的入口相连通,太阳接收塔21的周围设置有定日镜22。The outlet of the solar receiving tower 21 is communicated with the inlet of the hot molten salt tank 24, and the outlet of the hot molten salt tank 24 is communicated with the pipe side inlet of the heater 26 through the hot tank molten salt circulation pump 27, and the pipe side outlet of the heater 26 is connected. It communicates with the inlet of the cold molten salt tank 25 , and the outlet of the cold molten salt tank 25 communicates with the entrance of the solar receiving tower 21 through the cold tank molten salt circulation pump 23 .

电动机1与1#压缩机2、2#压缩机3、3#压缩机4及4#压缩机5同轴布置。The motor 1 is coaxially arranged with the 1# compressor 2, the 2# compressor 3, the 3# compressor 4 and the 4# compressor 5.

发电机28的驱动轴与透平机29的输出轴相连接。The drive shaft of the generator 28 is connected to the output shaft of the turbine 29 .

本实用新型的具体工作过程为:The concrete working process of the present utility model is:

在白天,当太阳可用时,通过太阳接收塔21的熔盐吸收定日镜22中的反射镜产生的热量,并储存于热熔盐罐24中备用。During the day, when the sun is available, the heat generated by the mirror in the heliostat 22 is absorbed by the molten salt of the solar receiving tower 21 and stored in the hot molten salt tank 24 for use.

在非高峰时段,当系统充电时,1#压缩机2、2#压缩机3、3#压缩机4及4#压缩机5利用廉价的电网电力生产压缩空气,并存储于储气罐31中。During off-peak hours, when the system is charging, Compressor 1# 2, Compressor 2# 3, Compressor 3# 4 and Compressor 4# 5 use cheap grid electricity to produce compressed air and store it in the air storage tank 31 .

由于空气压缩阶段伴随着热的产生,因此在通过1#冷却器6、2#冷却器7、3#冷却器8及4#冷却器9回收余热,除热回收外,使用冷却器降低压缩机的功耗,并减小储气罐31的体积,提高压缩机的压缩比。Since the air compression stage is accompanied by heat generation, the waste heat is recovered through the 1# cooler 6, 2# cooler 7, 3# cooler 8 and 4# cooler 9. In addition to heat recovery, the cooler is used to reduce the compressor The power consumption is reduced, the volume of the gas storage tank 31 is reduced, and the compression ratio of the compressor is improved.

压缩空气被储藏于储气罐31中,以供在电力需求高峰期使用。Compressed air is stored in the air tank 31 for use during peak power demand periods.

热水被储存于热水罐13中,以供在冬季供热时,打开供热阀门12进行供热;当制冷需求较高时,充当溴化锂吸收式制冷机16的热源。The hot water is stored in the hot water tank 13 for heating in winter by opening the heating valve 12 for heating; when the cooling demand is high, it acts as a heat source for the lithium bromide absorption refrigerator 16 .

当电力需求较高时,开始发电,压缩空气储能开始工作。When the demand for electricity is high, power generation starts, and the compressed air energy storage starts to work.

储气罐31的出气口与压力调节器32相连,通过调节压力调节器32,以调节压缩空气的压力,使压力达到工作压力值。The air outlet of the air storage tank 31 is connected with the pressure regulator 32, and the pressure of the compressed air is adjusted by adjusting the pressure regulator 32, so that the pressure reaches the working pressure value.

压力调节器32的出口与预热器30相连,用于调节透平机29的排气余热加热工质温度。The outlet of the pressure regulator 32 is connected to the preheater 30 for adjusting the temperature of the working medium heated by the exhaust heat of the turbine 29 .

热水罐13中存储的热水通过热水塔循环水泵14被泵送到吸收式制冷机16中,利用吸收式制冷机16吸收热,将溴化锂溶液的温度提高到饱和温度。然后,产生的水蒸气进入冷凝器18中冷却形成饱和液体,再进入吸收塔20中,浓的溴化锂溶液通过第二换热器17进入吸收塔20后,吸收发生器中的热量,以降低其温度和压力。The hot water stored in the hot water tank 13 is pumped to the absorption chiller 16 through the hot water tower circulating water pump 14, and the absorption chiller 16 absorbs heat to raise the temperature of the lithium bromide solution to the saturation temperature. Then, the generated water vapor enters the condenser 18 to be cooled to form a saturated liquid, and then enters the absorption tower 20. After the concentrated lithium bromide solution enters the absorption tower 20 through the second heat exchanger 17, it absorbs the heat in the generator to reduce its temperature and pressure.

在吸收塔20中浓的溴化锂溶液和冷却后的凝结水混合后变成稀的溴化锂溶液,然后通过工质泵19送到第二换热器17中,然后吸收浓的溴化锂溶液的热量后,进入到吸收式制冷机16中,最后,供应的热水的剩余热能在进入将循环水保持在环境温度的冷水罐11之前在第一换热器15中回收,用于生产热水。After the concentrated lithium bromide solution in the absorption tower 20 is mixed with the cooled condensed water, it becomes a dilute lithium bromide solution, which is then sent to the second heat exchanger 17 by the working fluid pump 19, and then after absorbing the heat of the concentrated lithium bromide solution, Entering the absorption chiller 16, finally, the residual thermal energy of the supplied hot water is recovered in the first heat exchanger 15 for the production of hot water before entering the cold water tank 11 which keeps the circulating water at ambient temperature.

Claims (8)

1. A power generation system with solar energy and compressed air energy storage coupled is characterized by comprising a motor (1), a 1# compressor (2), a 2# compressor (3), a 3# compressor (4), a 4# compressor (5), a 1# cooler (6), a 2# cooler (7), a 3# cooler (8), a 4# cooler (9), a cold water tank (11), a heat supply valve (12), a hot water tank (13), a first heat exchanger (15), an absorption refrigerator (16), a second heat exchanger (17), a condenser (18), an absorption tower (20), a solar heat collection system, a heater (26), a generator (28), a turbine (29), a preheater (30) and a gas storage tank (31);
the outlet of the 1# compressor (2) sequentially passes through the pipe side of the 1# cooler (6), the 2# compressor (3), the pipe side of the 2# cooler (7), the 3# compressor (4), the pipe side of the 3# cooler (8), the pipe sides of the 4# compressor (5) and the 4# cooler (9) are communicated with the inlet of a gas storage tank (31), the outlet of the gas storage tank (31) is communicated with the inlet of a turbine (29) after passing through the pipe side of a preheater (30) and the shell side of a heater (26), and the outlet of the turbine (29) is communicated with the external environment through the shell side of the preheater (30);
an outlet of the cold water tank (11) is communicated with a shell side inlet of the 1# cooler (6), a shell side inlet of the 2# cooler (7), a shell side inlet of the 3# cooler (8) and a shell side inlet of the 4# cooler (9), a shell side outlet of the 1# cooler (6), a shell side outlet of the 2# cooler (7), a shell side outlet of the 3# cooler (8) and a shell side outlet of the 4# cooler (9) are communicated with an inlet of the hot water tank (13) through pipelines and pipes, an outlet of the hot water tank (13) is divided into two paths, one path is communicated with a hot user through a heat supply valve (12), and the other path is communicated with an inlet of the cold water tank (11) through a pipe side of an absorption refrigerator (16) and a heat release side of a first heat exchanger (15);
the bottom outlet of the absorption tower (20) is communicated with the shell side inlet of the absorption refrigerator (16) through the tube side of the second heat exchanger (17), the shell side outlet of the absorption refrigerator (16) is divided into two paths, one path is communicated with the inlet of the absorption tower (20) through the condenser (18), the other path is communicated with the inlet of the absorption tower (20) through the shell side of the second heat exchanger (17), and the solar heat collection system is communicated with the tube side of the absorption refrigerator (16).
2. A solar energy and compressed air energy storage coupled power generation system according to claim 1, wherein the outlet of the air storage tank (31) is connected to the inlet of the turbine (29) via a pressure regulator (32), the tube side of the preheater (30) and the shell side of the heater (26).
3. The solar energy and compressed air energy storage coupled power generation system according to claim 1, characterized in that the outlet of the cold water tank (11) is communicated with the shell side inlet of the # 1 cooler (6), the shell side inlet of the # 2 cooler (7), the shell side inlet of the # 3 cooler (8) and the shell side inlet of the # 4 cooler (9) through a cold water tower circulating water pump (10).
4. The solar energy and compressed air energy storage coupled power generation system according to claim 1, wherein the outlet of the hot water tank (13) is divided into two paths after passing through the hot water tower circulating water pump (14).
5. The solar energy and compressed air energy storage coupled power generation system of claim 1, wherein the bottom outlet of the absorption tower (20) is in communication with the shell side inlet of the absorption chiller (16) via the working fluid pump (19) and the tube side of the second heat exchanger (17).
6. The solar and compressed air energy storage coupled power generation system of claim 1, wherein the solar heat collection system comprises a solar receiving tower (21), a heliostat (22), a cold-tank molten salt circulation pump (23), a hot-melt salt tank (24), a cold-melt salt tank (25) and a hot-tank molten salt circulation pump (27);
the outlet of the solar receiving tower (21) is communicated with the inlet of a hot-melt salt tank (24), the outlet of the hot-melt salt tank (24) is communicated with the pipe-side inlet of a heater (26) through a hot-tank molten salt circulating pump (27), the pipe-side outlet of the heater (26) is communicated with the inlet of a cold-melt salt tank (25), the outlet of the cold-melt salt tank (25) is communicated with the inlet of the solar receiving tower (21) through a cold-tank molten salt circulating pump (23), and heliostats (22) are arranged around the solar receiving tower (21).
7. Solar energy and compressed air energy storage coupled power generation system according to claim 1, characterized in that the electric motor (1) is arranged coaxially with the 1# compressor (2), the 2# compressor (3), the 3# compressor (4) and the 4# compressor (5).
8. A solar and compressed air energy storage coupled power generation system according to claim 1, wherein the drive shaft of the generator (28) is connected to the output shaft of the turbine (29).
CN202221996246.5U 2022-07-29 2022-07-29 A power generation system coupled with solar energy and compressed air energy storage Active CN217602730U (en)

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