会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 67. 发明授权
    • Process and device providing tightened operational safety for
underground liquefied gas storage
    • 工艺和设备为地下液化气储存提供紧密的操作安全性
    • US5383746A
    • 1995-01-24
    • US910119
    • 1992-07-15
    • Jean-Marie Dufourneaud
    • Jean-Marie Dufourneaud
    • B65G5/00F17C3/00F17C13/08F17C13/12
    • B65G5/00F17C13/126F17C3/005F17C2205/0335F17C2221/033F17C2223/0153F17C2223/033F17C2227/0135F17C2227/0157F17C2250/0636F17C2260/036F17C2270/0149
    • A safety device is provided for completely sealing off an underground liquified gas storage cavity when a dangerous situation arises, whereby all links between the storage cavity and the surface, including the vent link between the gas phase and the surface can be closed off by forming water plugs in the storage cavity. The water plugs are created automatically from existing reserves of water in the underground cavity. Maximum overall safety is achieved by not installing any important equipment in the underground storage cavity, by standardizing all links other than the vent link, and by minimizing the number of functional links required. Every standard link connects the gaseous or liquid phase of the gas to the surface via a side tube running downwards into a well containing water linked to the main tube which returns to the surface. The end of the main tube comprises a shut-off valve which causes the sealing water plug to be formed in both tubes once it is opened automatically or deliberately via an external signal.
    • PCT No.PCT / FR91 / 00860 Sec。 371日期:1992年7月15日 102(e)日期1992年7月15日PCT 1991年11月4日PCT PCT。 第WO92 / 08662号公报 日期为1992年5月29日。当出现危险情况时,提供一种完全密封地下液化气体储存腔的安全装置,从而存储腔与表面之间的所有连接(包括气相和表面之间的通气连接) 通过在储存腔中形成水塞来封闭。 水塞自动从地下腔中的现有储备水中产生。 通过不将任何重要的设备安装在地下储存空间内,通过标准化通风口连接以外的所有连接,并尽可能减少所需的功能连接数来实现最大的整体安全。 每个标准链路将气体的气态或液相通过一个向下流动的侧管连接到表面,该侧管连接到主管的水,该主管返回到表面。 主管的端部包括截止阀,该截止阀一旦通过外部信号自动或有意地打开,则使密封水塞形成在两个管中。
    • 68. 发明授权
    • Compressed-air storage installation
    • 压缩空气存储安装
    • US4147204A
    • 1979-04-03
    • US852488
    • 1977-11-17
    • Hans Pfenninger
    • Hans Pfenninger
    • B65G5/00F02C6/14F02C6/16F17C1/00F17C5/06F28D20/00F23L15/02
    • F28D17/005B65G5/00F02C6/14F02C6/16F17C1/007F17C5/06F28D20/00F05D2260/211F17C2201/052F17C2205/0332F17C2221/031F17C2223/0123F17C2223/035F17C2227/0157F17C2227/0327F17C2227/0365F17C2260/031F17C2265/07F17C2270/0149Y02E60/142Y02E60/15Y10S165/042
    • A compressed-air storage installation comprising a heat accumulator for storing heat contained in compressed air and the air is passed into subterranean caverns. The heat accumulator has partitions therein which are provided between a storage medium. The partitions form a number of air passages through which the hot compressed air entering at the central region of the heat accumulator flows in an essentially outward direction, thereby cools and flows on into the cavern.BACKGROUND OF THE INVENTIONThe present invention relates to a new and improved construction of a compressed-air storage installation having a heat accumulator for storing heat contained in compressed air, with the compressed air being passed into subterranean caverns.It is already known to employ compressed air instead of liquids as a storage medium for storing energy. The state-of-the-art compressed-air storage installations store compressed air at times of low load and utilize it at times of peak load to generate additional peak load energy.With these known installations, in order to increase the stored energy while the air is expanding, the air is heated by combustion of liquid or gaseous fuels before entering an expansion turbine.Compared with hydraulic pump storage stations, this technique has the disadvantage that additional energy in the form of a fuel is required for the storage of energy.It has also been proposed not cooling the air during the compression process, in order to thereby obtain as high as possible compressor discharge temperature, and that the compressed air then should be passed into a heat accumulator which removes heat from the air. After the heat is removed, the cold air then can be stored in a compressed-air store. Before the air expands in the gas turbine it is heated in the same heat accumulator in the reverse flow direction.Since the air usually has a pressure of 30 to 60 bar in these known installations, the outlay for storage above ground is too great and too expensive. It is for this reason that there are presently used subterranean caverns for storing air. Upon leaving the compressor the air which is to be stored has a temperature of about 300.degree. C to 500.degree. C. The rock strata forming the cavern will not withstand such temperatures, and even a lining of rock of relatively high heat resistance would be costly to maintain, especially since additional temperature fluctuations occur in the heat accumulator during such time as the storage cavern is being charged and discharged.SUMMARY OF THE INVENTIONTherefore, with the foregoing in mind it is a primary object of the present invention to provide an improved compressed-air storage installation which is not associated with the aforementioned drawbacks and limitations of the prior art proposals.Another and more specific object of the present invention aims at creating a compressed-air storage installation with heat accumulator which is operated without additional fuel and which is simple and cheap to construct and arranged such that no high temperatures and temperature fluctuations occur in the rock wall.Now in order to implement these and still further objects of the invention, which will become more readily apparent as the description proceeds, the compressed-air storage installation of the present development is manifested by the features that partitions are provided within the heat accumulator between a storage medium, in particular stones. These partitions or partition members form a number of air passages through which the hot compressed air entering at the center or central region of the heat accumulator flows in an essentially outward direction, thereby cools and flows on into the cavern.One important advantage of the present invention resides in the fact that the partition walls or parititions between the storage medium, in particular between stones, are so arranged that the incoming air is forced to flow through the storage medium in an outward direction and gives up its heat to the medium.According to another advantageous construction of the invention, the air passages are arranged in such a manner that a rock wall serves as the outer bounding surface of the last passage.The consequence of this arrangement is that the air flowing around the partition walls or partitions has given up the heat contained in it to the storage medium by the time it reaches the rock wall, and hence the rock wall remains relatively cool, i.e., attains a maximum temperature of 40.degree. C to 80.degree. C. Due to these measures, there is avoided crumbling of the rock wall due to the thermal effects, and thus, there is ensured that the underground chamber of the heat accumulator retains its freedom from leaks, in other words remains leak-tight.Furthermore, it is advantageous if the partition walls are formed of sheet metal and are thermally insulated at places having large temperature gradients or differences between the individual air passages.It has proved to be of special benefit if the aforementioned partition walls are provided with thermal insulation at places with large temperature differences, in particular at the hot air inlet into the heat accumulator and also opposite the outlet from the heat accumulator to the cavern.According to another construction of the invention there are provided artificially calcined and hardened stones as the storage medium.Through the use of artificially calcined and hardened stones as a storage medium it is possible to fill the interior of the heat accumulator with uniform interstices allowing the passage of air, because the artificially calcined and hardened stones can be shaped according to requirements.It has been found to be especially beneficial if in the heat accumulator of the invention the minimum ratio of the accumulator length to the accumulator diameter is about 2:1.It is furthermore advantageous if there is provided between an air inlet pipe and the rock wall surrounding the same a gap in which, by means of natural air circulation, the heat passing through the thermal insulation can be removed to the outside.This avoids heating of the rock outside the central, hot air inlet pipe, and the occurrence of thermal stresses in the rock.
    • 包括用于储存压缩空气中所含的热量和空气的蓄热器的压缩空气存储装置被传送到地下洞穴。 蓄热器具有设置在存储介质之间的隔板。 隔板形成多个空气通道,通过该空气通道进入蓄热器中心区域的热压缩空气沿基本上向外的方向流动,从而冷却并流入到洞穴中。