CN103353060A - Constant-temperature air storage system applied to compressed air energy storage power generation system - Google Patents

Constant-temperature air storage system applied to compressed air energy storage power generation system Download PDF

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CN103353060A
CN103353060A CN201310283944XA CN201310283944A CN103353060A CN 103353060 A CN103353060 A CN 103353060A CN 201310283944X A CN201310283944X A CN 201310283944XA CN 201310283944 A CN201310283944 A CN 201310283944A CN 103353060 A CN103353060 A CN 103353060A
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air
storage
temperature
heat
system
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CN201310283944XA
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王俊杰
薛小代
王思贤
周远
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中国科学院理化技术研究所
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Abstract

The invention relates to the field of compressed air energy storage power generation and particularly relates to a constant-temperature air storage system applied to a compressed air energy storage power generation system. The constant-temperature air storage system comprises an air storage device 1 and a heat storage device 2 arranged in the air storage device, wherein the heat storage device 2 is a heat storage working medium; the required heat storage working medium is a phase change heat storage working medium or the heat storage working medium with the specific heat capacity more than 0.5 kJ/kgk or a combination of the phase change heat storage working medium and the heat storage working medium. The constant-temperature air storage system has the following advantages: firstly, the air storage device can adopt a cheaper steel and iron material, so that the adoption of a more expensive low-temperature-resistant material is avoided and the cost is saved; secondly, heat stored in a high-efficiency heat storage device in an air bleeding process can be used for heating air in the air storage device, so that the primary temperature of the air entering a turbo expander is increased, the work applying capability of the air is improved, and the energy storage efficiency of the system is improved.

Description

—种应用于压缩空气储能发电系统的恒温储气系统 - kind of compressed air energy storage power generating system is applied to a thermostat Storage Systems

技术领域 FIELD

[0001] 本发明涉及压缩空气储能发电领域,具体地,本发明涉及一种应用于压缩空气储能发电系统的恒温储气系统。 [0001] The present invention relates to the field of compressed air energy storage power, in particular, the present invention relates to a thermostatic gas compressed air energy storage system is applied to a power generation system.

背景技术 Background technique

[0002]目前,电カ科学中最大的问题是电能的工程化储存,需要寻找ー种经济可行的、无污染的存储技木。 [0002] Currently, electrical science in grades posted the biggest problem is engineered to store electrical energy, the need to find ー kinds economically viable, non-polluting wood storage technology. 为解决电能大规模存储问题,世界各国耗费了巨大的人力和财力,开发了各种各样的储能方式,蓄电池组、飞轮、超级电容、超导储电等,因效率不高,寿命短,存取不便,蓄能容量偏小,投资成本大等,难以运作。 To solve the problem of large-scale electricity storage, the world spent huge human and financial resources, the development of a variety of energy storage mode, batteries, flywheels, super capacitors, superconducting power storage, etc., because efficiency is not high, short life , inconvenient access, storage capacity is too small, the large investment costs, is difficult to operate. 与其他储能技术相比,压缩空气储能发电系统具有投资少、运行维护费用低、动态响应快、运行方式灵活、经济性能高、环境污染小、占地面积小的特点,逐渐受到各国的重视。 Compared with other energy storage technologies, compressed air energy storage power generation system with less investment, low operation and maintenance costs, fast dynamic response, flexible operation, high economic performance, environmental pollution, small footprint features, gradually being States seriously. 德国、美国、日本、意大利等发达国家均有压缩空气储能电站正在建设过程中。 Germany, the United States, Japan, Italy and other developed countries have a compressed air energy storage power plant is under construction. 我国大力发展压缩空气储能发电技术在经济,社会和国家安全方面具有重要的战略意义,其可促进我国智能电网相关产业和重大装备制造技术的快速发展。 China to develop compressed air energy storage power generation technology has important strategic significance in economic, social and national security, which can promote the rapid development of China's smart grid-related industries and major equipment manufacturing technology.

[0003] 压缩空气储能发电系统的工作原理与抽水蓄能相类似,当电カ系统的用电处于低谷时,系统储能,利用系统中的富余电量,驱动空气压缩机以压缩空气,把能量以压缩空气的形式储存在储气装置中;当电カ系统用电负荷达到高峰时,系统释能,储气装置将储气空间内的压缩空气释放出来,带动透平发电机组发电,完成了电能一空气势能ー电能的转化。 [0003] The working principle of the pumped-storage power generating compressed air energy storage system similar to the electric power when the system is in low grades, energy storage system, surplus electricity utilization system, compressed air drives the air compressor, the compressed air energy storage in the form of gas storage means; ka when the electrical system load reached peak energy release system, the release of compressed gas storage means within the storing space, a turbine driven power generating units, complete a potential energy of the air energy conversion ー.

[0004] 压缩空气储能发电系统主要由压缩机、储气室、透平膨胀机以及发电机等组成,其中储气室是决定系统容量的关键因素。 [0004] The compressed air energy storage power generation system consists of a compressor, a gas chamber, and the turboexpander generators, of which gas chamber is a key factor in determining the system capacity. 对于大容量的压缩空气储能发电系统,利用地下的矿洞、盐洞和岩穴可以获得很大的储气空间,例如德国Huntorf电站和美国的McIntosh电站,均采用地下储气的方式。 For large capacity compressed air energy storage power generation system, using underground mine, salt caverns and caves large storing space can be obtained, for example, the United States and Germany Huntorf McIntosh power station plant, underground gas manner are used. 此外,也可以通过采用高压的钢制储罐等方式来实现储气,这种储气方式比较灵活,使系统摆脱了对地质条件的依赖,大大拓展了压缩空气储能发电系统的应用范围。 Further, may also be achieved by using a high pressure steel gas storage tanks, etc., this gas more flexible manner, so that the system free from dependence on geological conditions, greatly expanding the scope of application of compressed air energy storage power generation system. 当采用储罐来实现储气时,可以通过提高储罐中空气的压力来増大储能密度,储罐中的空气压カ可以达到20MPa以上,远远高于地下储气的压力。 When implemented gas tank, the tank can be improved by the enlargement of the energy density of the air pressure, the air pressure in the tank can reach grades 20MPa or more, much higher than the pressure of underground gas storage.

[0005] 在通过提高储罐中的压カ来提高储能密度的同时,也带来了新的问题: [0005] at the same time to increase the energy density by increasing the pressure in the tank ka, also brought new problems:

[0006] 1、在压缩空气储能发电系统的储能过程中,压缩机将空气压缩至高压,然后将高压的的空气充入储气储罐中,从而完成由电能向空气势能的转变和存储。 [0006] 1, in the course of storage of compressed air energy storage power generation system, the compressor air is compressed to a high pressure, high pressure air is then charged into the gas storage tank, thereby completing the change from potential energy to the air, and storage. 随着储罐充气过程的进行,储罐中空气的温度会不断的上升,以IOOm3的钢制储罐充气过程为例,其内部空气的压力由3MPa升高至lOMPa,若其为绝热充气过程即钢制储罐与空气不进行换热,充气完成时储罐中空气的温度将由充气开始时的40°C升高至充气结束时的118°C。 As the tank filling process, the temperature of the air in the tank will continue to rise, to steel tank filling process IOOm3 example, its internal air pressure was increased from 3MPa to Lompa, if it is adiabatic charging process i.e. steel tank exchanges heat with the air is not, upon inflation of the air temperature in the tank is completed by the inflator 40 ° C at the start raised to 118 ° C at the end of the inflation. 储气温度的升高会带来多方面消极的影响:首先,由于储罐中空气温度的升高,导致同等压カ下空气的密度减小,从而造成储能密度的降低;其次,储罐中高压空气温度的升高,会引起储罐安全的问题,为达到相同的安全标准,或者采用耐温程度更高的材料,或者提高储罐的安全系数(例如増加储罐的壁厚等),从而造成系统成本的升高。 Raising the temperature of the gas will bring many negative effects: First, because the air temperature rises in the tank, leading to the same air under pressure ka density decreases, resulting in decrease of energy density; secondly, the tank the high pressure air temperature, the tank can cause safety problems, to achieve the same safety standards, the degree of temperature or higher for a material, or to increase the safety factor of the tank (e.g., tank or the like to increase in wall thickness) , resulting in increased system cost.

[0007] 2、在压缩空气储能发电系统的释能过程中,存储在高压储罐中的空气驱动透平膨胀机,带动发电对外输出电能,从而完成由空气势能向电能的转变。 [0007] 2, the energy release process compressed air energy storage power generation system, the high pressure air stored in the tank drive turboexpander to drive the external output electrical power generation, thereby completing the transformation of potential energy of the air into electrical energy. 随着储罐放气过程的进行,储罐中空气的温度将不断的降低,以IOOm3的钢制储罐放气过程为例,其内部空气的压力由IOMPa降低至3MPa,若其为绝热放气过程即钢制储罐与空气不进行换热,放气完成时储罐中空气的温度将由放气开始时的40°C降低至放气结束时的-52°C。 As for the tank gas release process, the temperature of the air in the tank will continue to decrease, to the steel tank IOOm3 deflation, for example, its internal air pressure is reduced from IOMPa to 3MPa, if it is adiabatic discharge i.e., the process gas is not air steel tank and heat exchange, when deflated completion temperature of the air in the tank will be reduced to -52 ° C at the discharge end of the discharge air 40 ° C at the start of the air. 放气过程中储罐中空气温度的降低会带来多方面消极的影响:首先,由于储罐中空气温度的降低,导致空气焓值的减小,降低了空气的做功能力,从而引起系统储能效率的下降;其次,储罐中空气温度的降低,会引起储罐安全的问题,为达到相同的安全标准,或者采用耐温程度更低的材料,或者提高储罐的安全系数(例如増加储罐的壁厚等),从而造成系统成本的升高。 Reducing the temperature of the air in the tank during deflation will bring many negative effects: First, because the air temperature in the tank decrease, resulting in a reduction of air enthalpy, reduced work capacity of the air, causing the system decrease storage efficiency; secondly problems, reduction in the air temperature in the tank, the tank can cause safety, to achieve the same safety standards, or with a lower degree of temperature resistance materials, or improve the safety factor of the tank (e.g. zo wall thickness plus tank), resulting in increased system cost.

[0008] 当采用地下洞穴的储气方式时,虽然温度波动不会对储气室产生安全性的影响,但也存在因温度的升高或降低对系统储能效率的影响。 [0008] When the gas underground cavern embodiment, although the temperature fluctuations do not affect the safety of the gas chamber, but also because of the presence of an increase or decrease effect on the efficiency of energy storage system temperature. 由于地下洞穴的储气容量较大,较小的温度波动就对系统的效率产生明显的影响,因而有必要开发恒温储气系统来提高系统效率。 Since the gas storage capacity of the underground caverns of a large, small temperature fluctuations will have a significant impact on the efficiency of the system, it is necessary to develop a thermostatic gas system to improve system efficiency.

发明内容 SUMMARY

[0009] 本发明的目的是针对压缩空气储能发电系统在储气过程中存在的储气室内空气温度波动问题,提供ー种恒温系统,可以实现储气室的恒温充放气过程,从而提高系统的整体效率和安全性,并降低建造成本。 [0009] The object of the present invention is directed to the room air temperature fluctuations gas compressed air energy storage power generating system is present in the process gas, provided ー system constant temperatures, the thermostat can be realized gas chamber during inflation and deflation, thereby improving overall efficiency and security of the system, and reduce construction costs.

[0010] 本发明的应用于压缩空气储能发电系统的恒温储气系统,包括储气装置1,其中,还包括设置在储气装置I内的蓄热装置2 ; [0010] The compressed air energy storage power generation system applied to the gas storage system of the present invention the thermostat, comprising a gas storage means, wherein, further comprising a heat storage device disposed within the gas storage means 2 I;

[0011] 所述蓄热装置2为相变蓄热エ质,或比热容大于0.5kJ/kgk (大比热容)的蓄热エ质,或二者的结合,并通过封装结构包装形成换热结构。 [0011] The heat storage means as a 2 phase change thermal storage Ester mass, or heat capacity greater than 0.5kJ / kgk (large specific heat capacity) of the heat storage mass Ester, or combinations of both, and the package structure is formed by the heat exchanger package.

[0012] 本发明所述的储气装置I用于存储压缩空气储能发电系统的高压空气;所述的蓄热装置2用于吸收和释放在储气室充气和放气过程中的产生的波动热量。 [0012] The gas storage device according to the present invention I for the high pressure air stored in the compressed air energy storage power generating system; the heat storage device 2 for absorbing and releasing generated gas to inflate and deflate the chamber during the fluctuations in heat.

[0013] 本发明的恒温储气系统,所述的蓄热エ质被封装结构包装,形成特定的结构形式;所述的特定的结构形式可以很好的实现蓄热エ质与储罐内部空气的换热,从而平衡掉在储罐充放气过程中的空气的温度波动。 [0013] temperature of the gas storage system of the present invention, the encapsulated heat storage mass Ester packaging structure, forming a specific structural form; the particular structure can realize a good heat storage tank and the inside air mass Ester a heat exchanger, to balance out the charge in the tank discharge air temperature fluctuations during gas. 所述的封装材料为金属材料、塑料材料以及其他可以实现相同功能的封装材料。 The encapsulating material is a metallic material, plastic and other materials can achieve the same functionality encapsulating material. 所述蓄热装置的结构形式可以为阵列管束形式、阵列板片形式以及其他可以实现相同功能的结构形式。 Structure of the heat storage means may be in the form of an array of tubes, and other forms of array sheet structure can achieve the same functionality.

[0014] 根据本发明的恒温储气系统,其中,所述相变蓄热エ质为有机或者无机的或者其它材料所制成的相变蓄热材料,优选为有机或者无机的相变蓄热材料。 [0014] The temperature of the gas storage system of the present invention, wherein said phase change thermal storage phase-change heat storage mass Ester organic or inorganic material or made of other materials, preferably organic or inorganic phase change thermal storage of material. 上述相变蓄热材料的相变温度优选为10-300°C之间。 The phase-change heat storage material of the phase transition temperature is preferably between 10-300 ° C.

[0015] 根据本发明的恒温储气系统,所述储气装置I内的空气压カ为0.1〜30MPa,或者,所述储气装置I的空气压カ大于30MPa。 [0015] The temperature of the gas storage system of the present invention, ka air pressure within the gas storage device I is 0.1~30MPa, or the air pressure of the gas storage means ka I is greater than 30MPa. 其中,所述的储气装置I可以为钢制或其它材质的容器,也可以是地下洞穴,优选为钢制储罐。 Wherein said gas storage means I may be steel or other material container may be an underground cavern, preferably steel tank.

[0016]目前现有的压缩空气储能发电系统中,储气装置一般采用地下洞穴或者地上的储气罐,其内部并未考虑到采用恒温装置,导致在充放气过程中会产生较大的温度波动,从而产生消极的影响。 [0016] Currently available compressed air energy storage power generating system, the gas storage device commonly used tank or underground cavern the ground, which does not consider internal thermostatic apparatus employed, will lead to a greater charge and discharge gas in the process temperature fluctuations, resulting in a negative impact.

[0017] 本发明提供的一种应用于压缩空气储能发电系统的恒温储气系统,通过将高效的蓄热装置引入到储气装置内部,可以实现系统运行过程中的恒温充放气过程。 One kind of compressed air energy storage power generating system is applied to a thermostat provided a gas storage system [0017] present, gas is introduced into the interior by means of efficient heat storage device can be achieved during operation of the system constant inflation and deflation process. 蓄热装置内装有相变或者大比热容蓄热材料,当储气装置进行充气和放气过程时,蓄热装置可以和储气装置中的空气进行换热,以将空气维持在某一个恒定的温度。 Phase change heat storage apparatus built with a large specific heat capacity or storage material, and when inflated gas storage device when deflated process, heat exchange and heat storage means may be an air gas storage means to maintain the air at a certain constant temperature.

[0018] 当压缩空气储能发电系统储能时,压缩机将空气压缩至高压,充入储气装置,随着充气过程的进行,储气装置内空气的温度会逐渐升高。 [0018] When compressed air energy storage power storage system, the compressor air is compressed to a high pressure, charged into the gas storage means as the inflating process, the air temperature in the gas storage device will gradually rise. 此时,蓄热装置就会与储气装置内的空气进行换热,蓄热エ质吸收空气中的热量,使充气过程中产生的热量转移至蓄热エ质中,从而将储气装置内空气的温度維持稳定,避免了充气过程中温度的升高。 At this time, the heat storage device will be air in the gas heat exchanger means, the heat storage mass Ester absorbing heat in the air, the heat generated during inflation is transferred to the heat storage mass Ester, whereby the inner caisson maintaining a stable temperature of the air, to avoid raising the temperature of the inflation process. 由于实现了恒温的充气过程,充气终了时储气装置中高压空气的温度较低。 Since the inflation process to achieve a constant temperature, a lower temperature at the end of the inflator gas in the high pressure air means.

[0019] 具体优点如下:首先,储气装置可以采用价格较低的钢铁材料,避免采用价格较高的耐高温材料,节约了成本;其次,由于充气结束时高压空气的温度较低,相应的其密度将会较大,相同容积和压カ状态下就会存储更多质量的空气,从而増大了系统的储能密度;最后,在充气过程中产生的热量将会被蓄热材料吸收并存储,减小了系统能量的耗散,待系统释能时,这些热量又用来加热空气,提高了系统的能量利用效率,从而増大了系统的储能效率。 [0019] In particular the following advantages: First, the gas storage device may be a lower price of a steel material, avoid the use of more expensive high temperature materials, cost savings; secondly, due to the lower temperature end of the inflation of the high pressure air, the corresponding density will be larger, more air will be stored in the same volume and quality grades pressure state, a large energy density and thus enlargement of the system; Finally, the heat generated during inflation will be absorbed and stored in the heat storage material reduces the dissipation of energy of the system, to be able to release the system, and this heat is used to heat the air, improve the energy efficiency of the system, so that the enlargement of a large energy storage efficiency of the system.

[0020] 当压缩空气储能发电系统释能时,高压气体由储气装置放出,驱动透平膨胀机做功,随着放气过程的进行,储气装置内空气的温度会逐渐降低。 [0020] When discharging compressed air energy storage power generating system, high-pressure gas discharged from the gas storage means, drive the turboexpander work, carried out with the gas discharge process, the air temperature in the gas storage device will gradually decrease. 此时,高效蓄热装置就会与储气装置内的空气进行换热,空气吸收蓄热エ质中的热量,储气装置中的空气被加热,从而将储气室内空气的温度維持稳定,避免了放气过程中空气温度逐渐降低。 At this time, the heat storage device will be high with air in the gas heat exchanger means, the heat absorbed by air quality in regenerative Ester, gas storage apparatus air is heated so as to maintain the temperature of the room air stable gas, avoid the deflation process air temperature was gradually lowered. 由于实现了恒温的放气过程,放气终了时储气装置中空气的温度较高。 Since the temperature achieved during deflation, the deflated higher end temperature of the air in the gas storage apparatus.

[0021] 具体优点如下:首先,储气装置可以采用价格较低的钢铁材料,避免采用价格较高的耐低温的材料,节约了成本;其次,在放气过程中高效蓄热装置中储存的热量会用来加热储气装置中的空气,提高了进入透平膨胀机的空气的初温,増加了空气的做功能力,从而增大了系统的储能效率。 [0021] In particular the following advantages: First, the gas storage device may be a lower price of a steel material, to avoid the use of relatively expensive low temperature material cost savings; secondly, efficient storage in the heat storage means during deflation of heat is used to heat the air reservoir device, the air entering the turboexpander to increase the initial temperature to increase in the power capability of the air, thereby increasing the efficiency of energy storage system.

附图说明 BRIEF DESCRIPTION

[0022] 图1为本发明实施例的应用于压缩空气储能发电系统的恒温储气系统的横向剖视图。 [0022] FIG transverse sectional view of the compressed air energy storage power generating system is applied to a thermostatic gas system of an embodiment of the present invention.

[0023] 图2为本发明实施例的应用于压缩空气储能发电系统的恒温储气系统的纵向剖视图。 [0023] FIG. 2 is applied to a longitudinal sectional view of a compressed air energy storage power generation system thermostat gas system of an embodiment of the present invention.

[0024] 附图标识 [0024] BRIEF identification

[0025] 1、储气装置2、蓄热装置具体实施方式 [0025] 1, gas storage device 2, a heat storage device DETAILED DESCRIPTION

[0026] 下面结合实施例,对本发明的具体实施方式作进ー步详细描述。 [0026] Example embodiments in conjunction with the following, specific embodiments of the present invention will be described in further detail ー feed. 以下实施例用于说明本发明,但不用来限制本发明的范围。 The following examples serve to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] 本发明的应用于压缩空气储能发电系统的恒温储气系统,包括储气装置1,其中,还包括设置在储气装置I内的蓄热装置2 ; [0027] The compressed air energy storage power generation system applied to the gas storage system of the present invention the thermostat, comprising a gas storage means, wherein, further comprising a heat storage device disposed within the gas storage means 2 I;

[0028] 所述蓄热装置2为相变蓄热エ质,或大比热容(比热容大于0.5kJ/kgk)蓄热エ质,或二者的结合,并通过封装结构包装形成换热结构。 [0028] The heat storage means as a 2 phase change thermal storage mass Ester, or large specific heat capacity (specific heat capacity greater than 0.5kJ / kgk) Ester heat storage mass, or combinations of both, and the package structure is formed by the heat exchanger package.

[0029] 本发明所述的储气装置I用于存储压缩空气储能发电系统的高压空气;所述的蓄热装置2用于吸收和释放在储气室充气和放气过程中的产生的波动热量。 [0029] The gas storage device according to the present invention I for the high pressure air stored in the compressed air energy storage power generating system; the heat storage device 2 for absorbing and releasing generated gas to inflate and deflate the chamber during the fluctuations in heat.

[0030] 优选地,如图1-2所示,本发明所述蓄热装置2由在储气装置I内平行布置的多根圆管组成,圆管内装有相变蓄热エ质,所述相变蓄热エ质为相变蓄热材料,相变温度为10-300°C之间,圆管两端封ロ。 [0030] Preferably, as shown in FIG 1-2, the present invention is the heat storage device 2 by a plurality of parallel tube disposed within the gas storage apparatus I composition, phase change thermal storage tube that has the mass Ester, the said phase change thermal storage mass Ester phase change heat storage material, the phase transition temperature of between 10-300 ° C, sealed tube ends ro. 通过布置多根圆管形成阵列,从而增强相变蓄热エ质的换热效果。 An array formed by arranging a plurality of tube, thereby enhancing the effect of heat of phase change thermal storage mass Ester. 储气装置I用于存储高压的空气,优选的,储气装置I内部的压カ为0.l-30MPa。 I air reservoir means for storing a high pressure, preferably, the internal pressure of the gas storage device I ka is 0.l-30MPa.

[0031] 在用电低谷时,压缩空气储能发电系统储能,空气被压缩形成高压空气,通过管道将压缩空气储存到储气装置I中。 [0031] When low power, compressed air energy storage power storage system, a high pressure air is compressed air, the compressed air through a conduit to a gas storage apparatus I. 在此充气过程中,储气装置I中的空气的温度逐渐升高,蓄热装置2中相变蓄热エ质开始与空气进行换热,相变蓄热エ质吸收空气中的热量,从而使空气的温度維持稳定。 In the inflation process, the temperature of the air caisson I is gradually increased, the heat storage apparatus 2 Ester phase change thermal storage fluid begins to exchange heat with the air, phase change thermal storage heat from the air mass Ester absorbed, the temperature of the air to maintain stability.

[0032] 在用电高峰时,压缩空气储能发电系统释能,高压空气由储气装置I中放出,驱动透平膨胀机发电。 [0032] When peak, compressed air energy storage power generation system can be released, the high pressure air discharged from the gas storage apparatus I, turboexpander drive power. 在此放气过程中,储气装置I中的空气的温度逐渐降低,蓄热装置2中的相变蓄热エ质开始与空气进行换热,空气吸收相变蓄热エ质中的热量,从而使空气的温度维持稳定。 The deflation process, the gas temperature of the air in the apparatus I is gradually reduced, the heat storage device 2 Ester phase change thermal storage fluid begins to exchange heat with air, which absorb phase change thermal storage mass of the heat Ester, so that the temperature of the air to maintain stability.

[0033] 以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 [0033] The foregoing is only preferred embodiments of the present invention but are not intended to limit the present invention, any modifications within the spirit and principle of the present invention, the, equivalent substitutions, improvements should be included in the within the scope of the present invention.

Claims (9)

1.一种应用于压缩空气储能发电系统的恒温储气系统,包括储气装置1,其特征在于,还包括设置在储气装置I内的蓄热装置2 ; 所述蓄热装置2为蓄热工质,所需蓄热工质为相变蓄热工质,或比热容大于0.5kJ/kgk的蓄热工质,或二者的结合。 A compressed air energy storage power generation system applied to a thermostatic gas system, comprising a gas storage means, characterized by further comprising a heat storage device disposed within the caisson I is 2; the heat storage means 2 refrigerant heat storage, heat storage required for the phase change thermal storage working fluid working medium, the specific heat capacity is greater than or 0.5kJ / kgk regenerative refrigerant, or a combination of both.
2.根据权利要求1所述的恒温储气系统,其特征在于,所述蓄热工质通过封装材料包装成换热结构。 2. The temperature of the gas storage system according to claim 1, wherein the thermal storage refrigerant in heat exchange package structure through the package material.
3.根据权利要求2所述的恒温储气系统,其特征在于,所述的封装材料为金属材料或塑料材料。 3. The gas storage system of a thermostat according to claim 2, wherein said encapsulating material is a metal or plastic material.
4.根据权利要求2所述的恒温储气系统,其特征在于,所述的换热结构为阵列管束形式或阵列板片形式。 4. The temperature of the gas storage system of claim 2, wherein said heat exchange bundle in the form of an array structure of an array or sheet form.
5.根据权利要求1所述的恒温储气系统,其特征在于,所述相变蓄热工质为有机或者无机的相变蓄热材料。 The temperature of the gas storage system as claimed in claim 1, wherein said phase change thermal storage working medium is an organic or inorganic phase change heat storage material.
6.根据权利要求5所述的恒温储气系统,其特征在于,所述相变蓄热材料的相变温度为10-300°C之间。 The temperature of the gas storage system as claimed in claim 5, characterized in that the phase transition temperature of the phase change heat storage material is between 10-300 ° C.
7.根据权利要求1所述的恒温储气系统,其特征在于,所述储气装置I内的空气压力为0.1 〜30MPa。 7. The temperature of the gas storage system according to claim 1, characterized in that the air pressure within the gas storage device I is 0.1 ~30MPa.
8.根据权利要求1所述的恒温储气系统,其特征在于,所述储气装置I内的空气压力大于30MPa。 8. The gas storage system of a thermostat according to claim 1, characterized in that the air pressure within the gas storage apparatus I is greater than 30MPa.
9.根据权利要求1、7或8所述的恒温储气系统,其特征在于,所述的储气装置I为钢制储。 The system according to claim 1,7 or gas temperature claim 8, wherein said gas storage means is a steel I.
CN201310283944XA 2013-07-08 2013-07-08 Constant-temperature air storage system applied to compressed air energy storage power generation system CN103353060A (en)

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