CN207377774U - Tunnel type air energy storage systems - Google Patents
Tunnel type air energy storage systems Download PDFInfo
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- CN207377774U CN207377774U CN201721085303.3U CN201721085303U CN207377774U CN 207377774 U CN207377774 U CN 207377774U CN 201721085303 U CN201721085303 U CN 201721085303U CN 207377774 U CN207377774 U CN 207377774U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 25
- 238000005338 heat storage Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 2
- 229910017053 inorganic salt Inorganic materials 0.000 claims 1
- 239000003345 natural gas Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 15
- 238000001816 cooling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
本实用新型公开了一种坑道式空气储能系统，属于能量储存技术领域，包括压缩机、储气坑道和空气发电机，所述储气坑道的内腔壁上涂有密封胶，且设有压缩空气入口和压缩空气出口，所述压缩机与储气坑道之间连接有第一管道，储气坑道与空气发电机之间连接有第二管道，所述第一管道上设有第一阀门，第二管道上设有第二阀门。采用上述结构，通过电能将空气压缩为压缩空气，并将压缩空气储存起来，需再次用电时，可使用压缩空气对空气发电机进行发电而获得新的电能，其储能量大、储能效率高，且环保无污染。
The utility model discloses a tunnel-type air energy storage system, which belongs to the technical field of energy storage and comprises a compressor, an air storage tunnel and an air generator. Compressed air inlet and compressed air outlet, a first pipeline is connected between the compressor and the gas storage tunnel, a second pipeline is connected between the gas storage tunnel and the air generator, and a first valve is arranged on the first pipeline , the second pipeline is provided with a second valve. With the above-mentioned structure, the air is compressed into compressed air by electric energy, and the compressed air is stored. When electricity needs to be used again, the compressed air can be used to generate electricity for the air generator to obtain new electric energy, which has large energy storage and high energy storage efficiency. High, and environmentally friendly and pollution-free.
Description
技术领域technical field
本实用新型涉及能量储存技术领域，具体涉及一种坑道式空气储能系统。The utility model relates to the technical field of energy storage, in particular to a tunnel type air energy storage system.
背景技术Background technique
随着风能、太阳能等可再生能源和智能电网产业的迅速崛起，储能技术成为万众瞩目的焦点。而现目前，国家电网一个较为严重的问题是：白天供电和夜间供电存在严重的载荷不平衡。为了满足高峰用电的需求，国家电网不得不采用大功率发电机，使二十四小时保持持续的高发电，这就造成了夜间电能严重的浪费，现目前，为缓解用电压力，常采用蓄电池等方式进行储能，但普遍存在储能效率不高，储能量小及环境污染严重等不足。如何可持续且生态地将多余的电能储存起来是一个棘手的问题。With the rapid rise of renewable energy such as wind energy and solar energy and the smart grid industry, energy storage technology has become the focus of much attention. At present, a relatively serious problem of the State Grid is that there is a serious load imbalance between daytime power supply and nighttime power supply. In order to meet the demand for peak power consumption, the State Grid had to use high-power generators to maintain continuous high power generation for 24 hours, which caused a serious waste of electric energy at night. Storage batteries and other methods are used for energy storage, but there are generally deficiencies such as low energy storage efficiency, small energy storage and serious environmental pollution. How to store excess electricity sustainably and ecologically is a thorny issue.
实用新型内容Utility model content
有鉴于此，本实用新型提供一种坑道式空气储能系统，将电能以压缩空气形式存储在储气坑道内，需要用电时通过空气动力发电机进行发电，以满足用电高峰时段的用电需要。In view of this, the utility model provides a tunnel-type air energy storage system, which stores electric energy in the form of compressed air in the gas storage tunnel, and generates power through an aerodynamic generator when electricity is needed, so as to meet the demand during peak hours of electricity consumption. electricity needed.
为实现上述目的，本实用新型技术方案如下：In order to achieve the above object, the technical scheme of the utility model is as follows:
一种坑道式空气储能系统，其要点在于：包括压缩机、储气坑道和空气发电机，所述储气坑道的内腔壁上涂有密封胶，且设有压缩空气入口和压缩空气出口，所述压缩机与储气坑道之间连接有第一管道，储气坑道与空气发电机之间连接有第二管道，所述第一管道上设有第一阀门，第二管道上设有第二阀门。A tunnel type air energy storage system, the main points of which are: including a compressor, a gas storage tunnel and an air generator, the inner wall of the gas storage tunnel is coated with sealant, and is provided with a compressed air inlet and a compressed air outlet , a first pipeline is connected between the compressor and the gas storage tunnel, a second pipeline is connected between the gas storage tunnel and the air generator, a first valve is provided on the first pipeline, and a valve is provided on the second pipeline. Second valve.
采用上述结构，通过电能将空气压缩为压缩空气，并将压缩空气利用储气坑道储存起来，需再次用电时，可使用压缩空气对空气发电机进行发电而获得新的电能，其储能量大、储能效率高，且环保无污染。With the above structure, the air is compressed into compressed air by electric energy, and the compressed air is stored in the gas storage tunnel. When electricity needs to be used again, the compressed air can be used to generate electricity for the air generator to obtain new electric energy, which has a large storage capacity. , High energy storage efficiency, and environmental protection and pollution-free.
作为优选：所述储气坑道为混泥土建造的坑道、经密封处理后的废弃矿道或经密封处理后的天然山洞。采用上述结构，能储存更多的电能，成本低，绿色环保。As a preference: the gas storage tunnel is a tunnel constructed of concrete, a sealed abandoned mine tunnel or a sealed natural cave. By adopting the above-mentioned structure, more electric energy can be stored, the cost is low, and it is green and environment-friendly.
作为优选：所述压缩机连接有储存热量的储热罐。采用上述结构，空气压缩时会释放热量，储热罐可将释放的热量储存起来，可供给至需要用热的用户，对能量的利用率高。As a preference: the compressor is connected with a heat storage tank for storing heat. With the above-mentioned structure, heat will be released when the air is compressed, and the heat storage tank can store the released heat, which can be supplied to users who need heat, and the utilization rate of energy is high.
作为优选：所述空气发电机连接有储存冷量的储冷罐。采用上述结构，压缩空气驱使发驱使发电机产生电能的过程中，压缩空气会吸收空气中的热量，而产生一定的冷量，储冷罐可将冷量储存起来，可供给至需要用冷的用户，对能量的利用率高。As a preference: the air generator is connected with a cold storage tank for storing cold energy. With the above structure, when the compressed air drives the generator to generate electric energy, the compressed air will absorb the heat in the air and generate a certain amount of coldness, which can be stored in the cold storage tank and supplied to the cold storage tanks that need it. The user has a high utilization rate of energy.
作为优选：所述储冷罐内填充有相变介质。采用上述结构，相变介质可以储存冷量。As a preference: the cold storage tank is filled with a phase change medium. With the above structure, the phase change medium can store cold energy.
作为优选：所述相变介质为水或无机盐。采用上述结构，水或无机盐可以储存冷量。Preferably: the phase change medium is water or inorganic salts. With the above structure, water or inorganic salts can store cold energy.
与现有技术相比，本实用新型的有益效果是：Compared with the prior art, the beneficial effects of the utility model are:
采用本实用新型提供的坑道式空气储能系统，通过电能将空气压缩为压缩空气，并将压缩空气利用储气坑道储存起来，需再次用电时，可使用压缩空气对空气发电机进行发电而获得新的电能，其储能量大、储能效率高，且环保无污染。同时，还可将空气压缩时产生的热量和发电机发电时产生的冷量均储起来，并可使用在需要供热或供冷的地方，节约成本，对能量的利用率高。With the tunnel-type air energy storage system provided by the utility model, the air is compressed into compressed air through electric energy, and the compressed air is stored in the gas storage tunnel. When electricity needs to be used again, the compressed air can be used to generate electricity for the air generator. Obtain new electric energy, which has large storage energy, high energy storage efficiency, and is environmentally friendly and pollution-free. At the same time, it can also store the heat generated during air compression and the cold generated by the generator when generating electricity, and can be used in places that need heating or cooling, which saves costs and has a high utilization rate of energy.
附图说明Description of drawings
图1为本实用新型的能量转换关系图；Fig. 1 is the energy conversion diagram of the present utility model;
图2为储气坑道的截面图。Figure 2 is a cross-sectional view of the gas storage tunnel.
具体实施方式Detailed ways
以下结合实施例和附图对本实用新型作进一步说明。Below in conjunction with embodiment and accompanying drawing, the utility model is further described.
如图1所述，一种坑道式空气储能系统，可以用于将多余的电能转换为压缩空气，并将该压缩空气储存在储气坑道内，需再次用电时，可将储存的压缩空气驱动空气发电机1发电而获得新的电能，并输送至用户8。As shown in Figure 1, a tunnel-type air energy storage system can be used to convert excess electrical energy into compressed air, and store the compressed air in the gas storage tunnel. When electricity is needed again, the stored compressed air can be The air drives the air generator 1 to generate electricity to obtain new electric energy, and deliver it to the user 8 .
再如图1、2所示，该系统包括空气发电机1、压缩机2和储气坑道3，该储气坑道3为一个具有密闭内腔的容器，且内腔壁上涂有密封胶3a，用于防止压缩气体泄漏，保证储存的可靠性，这里的储气坑道3可以是为混泥土建造的坑道、经密封处理后的废弃矿道或经密封处理后的天然山洞等等。该储气坑道3还设有压缩空气入口3b和压缩空气出口3c，其中压缩空气入口3b通过第一管道4与压缩机2连接，并在该第一管道4上设置有第一阀门4a；压缩空气出口3c通过第二管道5与空气发电机1连接，并在该第二管道5上设置有第二阀门5a。As shown in Figures 1 and 2, the system includes an air generator 1, a compressor 2, and an air storage tunnel 3. The air storage tunnel 3 is a container with a closed inner cavity, and the inner cavity wall is coated with a sealant 3a , used to prevent the leakage of compressed gas and ensure the reliability of storage. The gas storage tunnel 3 here can be a tunnel built for concrete, an abandoned mine tunnel after sealing treatment, or a natural cave after sealing treatment, etc. The gas storage tunnel 3 is also provided with a compressed air inlet 3b and a compressed air outlet 3c, wherein the compressed air inlet 3b is connected to the compressor 2 through a first pipeline 4, and a first valve 4a is arranged on the first pipeline 4; The air outlet 3c is connected to the air generator 1 through the second pipe 5, and the second pipe 5 is provided with a second valve 5a.
同时，压缩机2工作时，由于空气压缩，空气分子会释放热量，所以压缩机2还连接有一个储热罐，用于储存压缩机2压缩空气时产生的热量，并且此热量可供给至需要用热的用户，对能量的利用率高。At the same time, when the compressor 2 is working, due to the air compression, the air molecules will release heat, so the compressor 2 is also connected with a heat storage tank, which is used to store the heat generated when the compressor 2 compresses the air, and this heat can be supplied to the needs Users who use heat have a high utilization rate of energy.
空气发电机1发电时，由于气体膨胀，会吸收周围空气的热量，从而产生一定的冷量，所以发电机1还接有储冷罐，用于储存发电机1工作时产生的冷量，并且此冷量可供给至需要用冷的用户，对能量的利用率高。这里的储冷过程是通过储冷罐内填充的水或无机盐实现的，水或无机盐在相变的过程中可储存冷量。When the air generator 1 generates electricity, due to the expansion of the gas, it will absorb the heat of the surrounding air, thereby generating a certain amount of cooling, so the generator 1 is also connected with a cold storage tank, which is used to store the cooling generated when the generator 1 is working, and This cooling capacity can be supplied to users who need cooling, and the utilization rate of energy is high. The cold storage process here is realized through the water or inorganic salts filled in the cold storage tank, which can store cold energy during the phase change process.
该系统的储能和释能的过程如下：The energy storage and release process of the system is as follows:
储能时，压缩机2将空气压缩为压缩气体，并通过第一管道4输送至储气坑道3内储存起来。During energy storage, the compressor 2 compresses the air into compressed gas, and transports it to the gas storage tunnel 3 through the first pipeline 4 for storage.
释能时，储气坑道3内的压缩气体通过第二管道5输送至空气发电机1，空气发电机1利用压缩气体可进行发电。When energy is released, the compressed gas in the gas storage tunnel 3 is transported to the air generator 1 through the second pipeline 5, and the air generator 1 can generate electricity by using the compressed gas.
最后需要说明的是，上述描述仅仅为本实用新型的优选实施例，本领域的普通技术人员在本实用新型的启示下，在不违背本实用新型宗旨及权利要求的前提下，可以做出多种类似的表示，这样的变换均落入本实用新型的保护范围之内。Finally, it should be noted that the above description is only a preferred embodiment of the utility model, and under the inspiration of the utility model, those skilled in the art can make many A similar representation, such transformations all fall within the protection scope of the present utility model.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114152128A (en) * | 2021-12-02 | 2022-03-08 | 西安热工研究院有限公司 | Double-well hydraulic compressed air energy storage system and operation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114152128A (en) * | 2021-12-02 | 2022-03-08 | 西安热工研究院有限公司 | Double-well hydraulic compressed air energy storage system and operation method thereof |
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