CN204034106U - Nuclear power station fire water distribution system - Google Patents
Nuclear power station fire water distribution system Download PDFInfo
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- CN204034106U CN204034106U CN201420413859.0U CN201420413859U CN204034106U CN 204034106 U CN204034106 U CN 204034106U CN 201420413859 U CN201420413859 U CN 201420413859U CN 204034106 U CN204034106 U CN 204034106U
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Abstract
本实用新型公开了一种核电站消防水分配系统，包括相连接的稳压系统和分配系统，稳压系统包括第一气压蓄能罐和第二气压蓄能罐、以及第一空气压缩机和第二空气压缩机；分配系统包括主环网，主环网由数个主联络管道连接构成；第一气压蓄能罐和第二气压蓄能罐的出口分别连接至主联络管道上，且于第一气压蓄能罐和第二气压蓄能罐的出口之间的主联络管道上还设有至少两个第一隔离阀。本实用新型的核电站消防水分配系统，通过将两气压蓄能罐的出口分别连接至分配系统的主联络管道上，且在两气压蓄能罐的出口之间设至少两个隔离阀，实现两气压蓄能罐之间的无缝切换，且当其间一隔离阀检修时，两气压蓄能罐不会同时被隔离，确保稳压系统的正常运作。
The utility model discloses a fire-fighting water distribution system of a nuclear power plant, which comprises a voltage stabilizing system and a distribution system connected together. The voltage stabilizing system includes a first air pressure energy storage tank, a second air pressure energy storage tank, a first air compressor and a second air pressure energy storage tank. Two air compressors; the distribution system includes a main ring network, and the main ring network is composed of several main communication pipelines; the outlets of the first air pressure energy storage tank and the second air pressure energy storage tank are respectively connected to the main communication pipeline, and in the first At least two first isolation valves are also arranged on the main communication pipeline between the outlet of the first air pressure accumulator tank and the outlet of the second air pressure energy storage tank. In the fire water distribution system for nuclear power plants of the utility model, the outlets of the two air pressure energy storage tanks are respectively connected to the main connecting pipeline of the distribution system, and at least two isolation valves are set between the outlets of the two air pressure energy storage tanks to realize two Seamless switching between the air pressure accumulator tanks, and when an isolation valve is overhauled, the two air pressure accumulator tanks will not be isolated at the same time, ensuring the normal operation of the pressure stabilizing system.
Description
技术领域technical field
本实用新型涉及一种消防水分配系统，尤其涉及一种核电站消防水分配系统。The utility model relates to a fire-fighting water distribution system, in particular to a nuclear power plant fire-fighting water distribution system.
背景技术Background technique
在核电站中，JPD系统(消防水分配系统)负责将JPP系统(消防水生产系统)的消防水输送到核岛环网、常规岛环网及BOP(电站配套设施)，其中核岛部分属于安全重要非安全分级。JPD系统的可靠性对于能否及时控制火灾、确保核电站的停堆系统及安全系统执行安全功能存在至关重要的影响。In nuclear power plants, the JPD system (fire water distribution system) is responsible for transporting the fire water from the JPP system (fire water production system) to the nuclear island ring network, conventional island ring network and BOP (power plant supporting facilities), of which the nuclear island part belongs to the safety Important non-safety rating. The reliability of the JPD system has a crucial impact on whether the fire can be controlled in time, and the shutdown system and safety system of the nuclear power plant can perform safety functions.
现有的JPD系统中，两个气压蓄能罐的出口连接在不同位置上，其中一气压蓄能罐的出口连接在大环网上，另一气压蓄能罐的出口连接在汽机房子环网上，且两气压蓄能罐的出口之间仅设置一个隔离阀。当隔离阀故障维修时，两气压蓄能罐同时被隔离，从而无法向JPD系统提供消防水源，在消防状态下，在消防水泵启动前系统无法及时提供连续消防水控制火灾。In the existing JPD system, the outlets of the two air pressure accumulator tanks are connected at different positions, one of the outlets of the air pressure energy storage tank is connected to the large ring network, and the outlet of the other air pressure energy storage tank is connected to the ring network of the turbine house. And only one isolation valve is arranged between the outlets of the two air pressure accumulator tanks. When the isolation valve is faulty and repaired, the two air pressure accumulator tanks are isolated at the same time, so that the fire water source cannot be provided to the JPD system. In the fire state, the system cannot provide continuous fire water in time to control the fire before the fire water pump starts.
另外，两气压蓄能罐同时被隔离后，如采用临时措施手动启动消防水泵持续运行维持系统压力，开启消防水泵最小流量再循环阀维持泵最小流量，则容易造成管道及节流孔板冲刷，另外消防水泵长时间以最小流量运行的成本也较大。In addition, after the two air pressure accumulator tanks are isolated at the same time, if temporary measures are taken to manually start the fire pump to continue running to maintain the system pressure, and to open the minimum flow recirculation valve of the fire pump to maintain the minimum flow of the pump, it is easy to cause the pipeline and the orifice to be scoured. In addition, the cost of running the fire pump at the minimum flow rate for a long time is also relatively high.
实用新型内容Utility model content
本实用新型要解决的技术问题在于，提供一种改进的核电站消防水分配系统。The technical problem to be solved by the utility model is to provide an improved nuclear power plant fire water distribution system.
本实用新型解决其技术问题所采用的技术方案是：提供一种核电站消防水分配系统，包括相连接的稳压系统和分配系统，所述稳压系统包括用于储存消防水的第一气压蓄能罐和第二气压蓄能罐、以及分别连接所述第一气压蓄能罐和第二气压蓄能罐的第一空气压缩机和第二空气压缩机；所述分配系统包括连接在核电站的核岛和常规岛之间的用于消防水流通的主环网，所述主环网由数个主联络管道连接构成；The technical solution adopted by the utility model to solve the technical problem is to provide a nuclear power plant fire water distribution system, including a voltage stabilizing system and a distribution system connected to each other, and the voltage stabilizing system includes a first air pressure storage for storing fire water energy tank and the second air pressure energy storage tank, and the first air compressor and the second air compressor respectively connected to the first air pressure energy storage tank and the second air pressure energy storage tank; The main ring network for fire water circulation between the nuclear island and the conventional island, the main ring network is composed of several main connecting pipelines;
所述第一气压蓄能罐和所述第二气压蓄能罐的出口分别连接至所述分配系统的所述主联络管道上，且于所述第一气压蓄能罐和第二气压蓄能罐的出口之间的所述主联络管道上还设有至少两个第一隔离阀。The outlets of the first air pressure energy storage tank and the second air pressure energy storage tank are respectively connected to the main communication pipeline of the distribution system, and are connected to the first air pressure energy storage tank and the second air pressure energy storage tank. At least two first isolation valves are also provided on the main communication pipe between the outlets of the tanks.
在本实用新型的核电站消防水分配系统中，所述第一气压蓄能罐的出口远离所述第二气压蓄能罐的一侧的所述主联络管道上、和所述第二气压蓄能罐的出口远离所述第一气压蓄能罐的一侧的所述主联络管道还设有至少一个第二隔离阀。In the nuclear power plant fire water distribution system of the present utility model, the outlet of the first air pressure energy storage tank is far away from the main communication pipeline on the side of the second air pressure energy storage tank, and the second air pressure energy storage tank At least one second isolation valve is further provided in the main communication pipeline on the side where the outlet of the tank is away from the first pneumatic energy storage tank.
在本实用新型的核电站消防水分配系统中，所述第一气压蓄能罐和所述第二气压蓄能罐的出口分别通过第一管道和第二管道连接所述主联络管道，且所述第一管道和第二管道上均设有第三隔离阀和防止所述消防水回流的第一单向阀。In the nuclear power plant fire water distribution system of the present utility model, the outlets of the first air pressure energy storage tank and the second air pressure energy storage tank are respectively connected to the main communication pipeline through the first pipeline and the second pipeline, and the Both the first pipeline and the second pipeline are provided with a third isolation valve and a first one-way valve to prevent the backflow of the fire-fighting water.
在本实用新型的核电站消防水分配系统中，所述稳压系统还包括第一稳压泵和第二稳压泵，所述第一稳压泵的出水端连接至所述第一管道，所述第二稳压泵的出水端连接至所述第二管道。In the nuclear power plant fire water distribution system of the present invention, the pressure stabilizing system further includes a first stabilizing pump and a second stabilizing pump, the water outlet of the first stabilizing pump is connected to the first pipeline, so The water outlet end of the second pressure stabilizing pump is connected to the second pipeline.
在本实用新型的核电站消防水分配系统中，所述第一稳压泵的出水端和所述第二稳压泵的出水端还分别设有防止回流的第二单向阀。In the nuclear power plant fire water distribution system of the present invention, the water outlets of the first pressure stabilizing pump and the water outlet of the second pressure stabilizing pump are respectively provided with second one-way valves to prevent backflow.
在本实用新型的核电站消防水分配系统中，所述稳压系统还包括分别连接所述第一气压蓄能罐和所述第二气压蓄能罐、用于监测所述第一气压蓄能罐或所述第二气压蓄能罐内气压和消防水量的监测装置。In the nuclear power plant fire water distribution system of the present utility model, the pressure stabilizing system further includes connecting the first air pressure accumulator tank and the second air pressure energy storage tank for monitoring the first air pressure energy storage tank Or a monitoring device for air pressure and fire water volume in the second air pressure accumulator tank.
在本实用新型的核电站消防水分配系统中，所述第一气压蓄能罐和所述监测装置的上端之间连接有第一连通管道，所述第一气压蓄能罐和所述监测装置的下端之间连接有第二连通管道；所述第二气压蓄能罐和所述监测装置的上端之间连接有第三连通管道，所述第二气压蓄能罐和所述监测装置的下端之间连接有第四连通管道；且，所述第一连通管道至所述第四连通管道上均设有第四隔离阀。In the nuclear power plant fire water distribution system of the present utility model, a first communication pipeline is connected between the first air pressure energy storage tank and the upper end of the monitoring device, and the first air pressure energy storage tank and the monitoring device A second communication pipeline is connected between the lower ends; a third communication pipeline is connected between the second air pressure energy storage tank and the upper end of the monitoring device, and a third communication pipeline is connected between the second air pressure energy storage tank and the lower end of the monitoring device. A fourth communication pipeline is connected between them; and, fourth isolation valves are provided on the first communication pipeline to the fourth communication pipeline.
在本实用新型的核电站消防水分配系统中，所述分配系统还包括分别围绕连接所述常规岛和核岛的用于消防水流通的子环网，所述子环网连接在所述主环网上。In the nuclear power plant fire water distribution system of the present utility model, the distribution system also includes a sub-ring network for fire-fighting water circulation that connects the conventional island and the nuclear island respectively, and the sub-ring network is connected to the main ring online.
在本实用新型的核电站消防水分配系统中，所述分配系统包括分别围绕连接两个所述常规岛的两个所述子环网，两个所述子环网之间通过所述主环网的主联络管道相连接；所述第一气压蓄能罐和所述第二气压蓄能罐的出口分别连接至两个所述子环网之间的所述主联络管道上。In the nuclear power plant fire water distribution system of the present utility model, the distribution system includes two sub-ring networks respectively surrounding and connecting the two conventional islands, and the two sub-ring networks pass through the main ring network The outlets of the first air pressure accumulator tank and the second air pressure energy storage tank are respectively connected to the main communication pipeline between the two sub-ring networks.
本实用新型的核电站消防水分配系统，通过将两气压蓄能罐的出口分别连接至分配系统的主联络管道上，且在两气压蓄能罐的出口之间设至少两个隔离阀，实现两气压蓄能罐之间的无缝切换，且当其间一隔离阀检修时，两气压蓄能罐不会同时被隔离，确保消防水分配系统的正常运作，在消防状态下，在消防水泵启动前系统能够及时提供消防水。In the fire water distribution system for nuclear power plants of the utility model, the outlets of the two air pressure energy storage tanks are respectively connected to the main connecting pipeline of the distribution system, and at least two isolation valves are set between the outlets of the two air pressure energy storage tanks to realize two Seamless switching between the air pressure accumulator tanks, and when one of the isolation valves is overhauled, the two air pressure accumulator tanks will not be isolated at the same time, ensuring the normal operation of the fire water distribution system. In the fire state, before the fire water pump starts The system can provide fire water in time.
附图说明Description of drawings
下面将结合附图及实施例对本实用新型作进一步说明，附图中：The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:
图1是本实用新型一实施例的核电站消防水分配系统的结构示意图。Fig. 1 is a structural schematic diagram of a nuclear power plant fire water distribution system according to an embodiment of the present invention.
具体实施方式Detailed ways
为了对本实用新型的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本实用新型的具体实施方式。In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is described in detail with reference to the accompanying drawings.
如图1所示，本实用新型一实施例的核电站消防水分配系统，包括相连接的稳压系统和分配系统，分配系统与消防水泵100连接，通过该稳压系统和分配系统的相配合，实现消防状态下，在消防水泵100启动前消防水分配系统(JPD系统)能够及时提供消防水。As shown in Figure 1, the nuclear power plant fire water distribution system of an embodiment of the utility model includes a connected voltage stabilizing system and a distribution system, the distribution system is connected with the fire pump 100, and through the cooperation of the voltage stabilizing system and the distribution system, In the fire-fighting state, the fire-fighting water distribution system (JPD system) can provide fire-fighting water in time before the fire-fighting water pump 100 starts.
其中，稳压系统包括第一气压蓄能罐11和第二气压蓄能罐21、以及第一空气压缩机12和第二空气压缩机22；第一气压蓄能罐1和第二气压蓄能罐2用于储存消防水，第一空气压缩机12和第二空气压缩机22分别连接第一气压蓄能罐11和第二气压蓄能罐21，分别用于将空气压进第一气压蓄能罐11和第二气压蓄能罐21内，使第一气压蓄能罐11和第二气压蓄能罐21内气压上升，以达到要求的压力范围。分配系统包括连接在核电站的核岛和常规岛之间的主环网3，主环网3用于消防水流通，稳压系统通过第一气压蓄能罐11和第二气压蓄能罐21将消防水提供至主环网3。该主环网3由数个主联络管道31连接构成，消防水在主联络管道31中流通至核岛和常规岛。消防水泵100设置在水泵房。Wherein, the voltage stabilizing system includes a first air pressure energy storage tank 11 and a second air pressure energy storage tank 21, and a first air compressor 12 and a second air compressor 22; the first air pressure energy storage tank 1 and the second air pressure energy storage tank The tank 2 is used to store fire fighting water. The first air compressor 12 and the second air compressor 22 are respectively connected to the first air pressure energy storage tank 11 and the second air pressure energy storage tank 21, and are respectively used to press air into the first air pressure energy storage tank. In the energy tank 11 and the second air pressure energy storage tank 21, the air pressure in the first air pressure energy storage tank 11 and the second air pressure energy storage tank 21 is increased to reach the required pressure range. The distribution system includes a main ring network 3 connected between the nuclear island of the nuclear power plant and the conventional island, the main ring network 3 is used for fire water circulation, and the pressure stabilizing system uses the first air pressure energy storage tank 11 and the second air pressure energy storage tank 21 to The fire water is provided to the main ring network 3. The main ring network 3 is formed by connecting several main communication pipes 31 , and the fire water flows through the main communication pipes 31 to the nuclear island and the conventional island. The fire pump 100 is installed in the pump house.
第一气压蓄能罐11和第二气压蓄能罐21的出口分别连接至分配系统的主联络管道21上，且于第一气压蓄能罐11和第二气压蓄能罐21的出口之间的主联络管道31上还设有至少两个第一隔离阀41，这样，当其中一第一隔离41阀检修时，第一气压蓄能罐11和第二气压蓄能罐21不会同时被隔离，可进行无缝切换，确保在检修时有一个气压蓄能罐能正常提供消防水，从而确保消防水分配系统的正常运作，在消防状态下，在消防水泵100启动前系统能够及时提供消防水。The outlets of the first air pressure energy storage tank 11 and the second air pressure energy storage tank 21 are respectively connected to the main communication pipeline 21 of the distribution system, and between the outlets of the first air pressure energy storage tank 11 and the second air pressure energy storage tank 21 At least two first isolating valves 41 are also provided on the main connecting pipeline 31, so that when one of the first isolating valves 41 is overhauled, the first air pressure accumulator tank 11 and the second air pressure energy storage tank 21 will not be blocked at the same time. It is isolated and can be seamlessly switched to ensure that there is a pneumatic energy storage tank that can provide fire water normally during maintenance, thereby ensuring the normal operation of the fire water distribution system. In the fire state, the system can provide fire water in time before the fire pump 100 starts water.
在第一气压蓄能罐11的出口远离第二气压蓄能罐21的一侧的主联络管道31上设有至少一个第二隔离阀42，用于连通或隔断该第一气压蓄能罐11；或者，在第二气压蓄能罐21的出口远离第一气压蓄能罐11的一侧的主联络管道31设有至少一个第二隔离阀42，用于连通或隔断该第二气压蓄能罐21；又或者，上述两种位置处都设有第二隔离阀42。At least one second isolation valve 42 is provided on the main connecting pipe 31 on the side where the outlet of the first air pressure accumulator tank 11 is far away from the second air pressure energy storage tank 21, for communicating or isolating the first air pressure energy storage tank 11 or, the outlet of the second air pressure energy storage tank 21 is provided with at least one second isolating valve 42 on the main communication pipeline 31 on the side away from the first air pressure energy storage tank 11, which is used to communicate or cut off the second air pressure energy storage tank. tank 21; or, the second isolation valve 42 is provided at the above two positions.
具体地，在稳压系统中，第一气压蓄能罐11和第二气压蓄能罐21的出口分别通过第一管道13和第二管道23连接主联络管道31，且第一管道13和第二管道23上均设有第三隔离阀43和第一单向阀51，第一单向阀51的设置是为了防止消防水回流至气压蓄能罐内。Specifically, in the pressure stabilizing system, the outlets of the first air pressure accumulator tank 11 and the second air pressure energy storage tank 21 are respectively connected to the main communication pipeline 31 through the first pipeline 13 and the second pipeline 23, and the first pipeline 13 and the second pipeline Both pipelines 23 are provided with a third isolation valve 43 and a first one-way valve 51. The first one-way valve 51 is provided to prevent the fire-fighting water from flowing back into the air pressure energy storage tank.
进一步地，稳压系统还包括第一稳压泵14和第二稳压泵24，为第一气压蓄能罐11和第二气压蓄能罐21的流出的消防水作小流量补充，为了防止第一气压蓄能罐11和第二气压蓄能罐21流出的消防水水量、水压不足。其中，第一稳压泵14的出水端连接至第一管道13，第二稳压泵24的出水端连接至第二管道23，从而第一稳压泵14将水泵至第一管道13中，第二稳压泵24将水泵至第二管道23中。同样地，为了防止水回流至稳压泵，该第一稳压泵14的出水端和第二稳压泵24的出水端还分别设有第二单向阀52。Further, the pressure stabilizing system also includes a first stabilizing pump 14 and a second stabilizing pump 24, which are supplemented with a small flow rate for the outflow of the first air pressure energy storage tank 11 and the second air pressure energy storage tank 21, in order to prevent The quantity and water pressure of the fire-fighting water flowing out from the first air pressure accumulator tank 11 and the second air pressure energy storage tank 21 are insufficient. Wherein, the water outlet end of the first voltage stabilizing pump 14 is connected to the first pipeline 13, and the water outlet end of the second voltage stabilizing pump 24 is connected to the second pipeline 23, so that the first voltage stabilizing pump 14 pumps water into the first pipeline 13, The second stabilizing pump 24 pumps water into the second pipeline 23 . Similarly, in order to prevent water from flowing back to the stabilizing pump, the water outlets of the first stabilizing pump 14 and the water outlet of the second stabilizing pump 24 are respectively provided with second one-way valves 52 .
通常，在JPD系统中，两个气压蓄能罐一个作为主气压蓄能罐，一个作为备用气压蓄能罐，在主气压蓄能罐因故障不能运行时，切换至备用的气压蓄能罐。因此，在稳压系统中，当其中一气压蓄能罐如第一气压蓄能罐11出现故障不能运行时，通过开启连接第二气压蓄能罐21出口的第二管道23上的第三隔离阀43及第一单向阀51，将第二气压蓄能罐21的消防水通过第二管道23补充至大环网上。Usually, in the JPD system, one of the two air pressure accumulator tanks is used as the main air pressure energy storage tank, and the other is used as the backup air pressure energy storage tank. Therefore, in the pressure stabilizing system, when one of the air pressure accumulator tanks such as the first air pressure energy storage tank 11 breaks down and cannot operate, by opening the third isolation on the second pipeline 23 connected to the outlet of the second air pressure energy storage tank 21 The valve 43 and the first one-way valve 51 supplement the fire-fighting water of the second air pressure accumulator tank 21 to the large ring network through the second pipeline 23 .
此外，稳压系统还包括分别连接第一气压蓄能罐11和第二气压蓄能罐21的监测装置7，其用于监测第一气压蓄能罐11或第二气压蓄能罐21内气压和消防水位。具体地，第一气压蓄能罐11和监测装置7的上端之间连接有第一连通管道61，用于实现第一气压蓄能罐11和监测装置7内的空气连通；第一气压蓄能罐11和监测装置7的下端之间连接有第二连通管道62，用于实现第一气压蓄能罐11和监测装置7内的消防水连通，在第一气压蓄能罐11使用情况下，该监测装置7与第一气压蓄能罐11连通；第二气压蓄能罐21和监测装置7的上端之间连接有第三连通管道63，用于实现第二气压蓄能罐21和监测装置7内的空气连通；第二气压蓄能罐21和监测装置7的下端之间连接有第四连通管道64，用于实现第二气压蓄能罐21和监测装置7内的消防水连通，在启用第二气压蓄能罐21的情况下，该监测装置7与第二气压蓄能罐21连通。其中，第一连通管道61至第四连通管道64上均设有第四隔离阀44，用于实现第一气压蓄能罐11和监测装置7之间、第二气压蓄能罐21和监测装置7之间的连通或隔绝。监测装置7包括监测罐，其通过与第一气压蓄能罐11或第二气压蓄能罐21连通后，与第一气压蓄能罐11或第二气压蓄能罐21内等高的消防水平线和气压，为工作人员提供监测数据。In addition, the pressure stabilizing system also includes a monitoring device 7 connected to the first air pressure energy storage tank 11 and the second air pressure energy storage tank 21 respectively, which is used to monitor the air pressure in the first air pressure energy storage tank 11 or the second air pressure energy storage tank 21 and fire water level. Specifically, a first communication pipe 61 is connected between the upper end of the first air pressure accumulator tank 11 and the monitoring device 7 for realizing air communication between the first air pressure energy storage tank 11 and the monitoring device 7; A second communication pipe 62 is connected between the lower end of the tank 11 and the monitoring device 7, which is used to realize the communication of the fire water in the first air pressure accumulator tank 11 and the monitoring device 7. When the first air pressure energy storage tank 11 is in use, The monitoring device 7 is communicated with the first air pressure accumulator tank 11; a third communication pipeline 63 is connected between the second air pressure energy storage tank 21 and the upper end of the monitoring device 7 for realizing the second air pressure energy storage tank 21 and the monitoring device The air in 7 communicates; The fourth communication pipeline 64 is connected between the second air pressure accumulator tank 21 and the lower end of the monitoring device 7, and is used to realize the fire-fighting water communication in the second air pressure accumulator tank 21 and the monitoring device 7. When the second air pressure accumulator tank 21 is activated, the monitoring device 7 communicates with the second air pressure energy storage tank 21 . Wherein, the first communication pipeline 61 to the fourth communication pipeline 64 are provided with a fourth isolation valve 44, which is used to realize the connection between the first air pressure energy storage tank 11 and the monitoring device 7, the second air pressure energy storage tank 21 and the monitoring device. 7 connected or isolated. Monitoring device 7 comprises monitoring tank, and it communicates with the first air pressure energy storage tank 11 or the second air pressure energy storage tank 21, and the fire level line of the same height in the first air pressure energy storage tank 11 or the second air pressure energy storage tank 21 and air pressure to provide monitoring data for staff.
在分配系统中，分配系统还包括分别围绕连接常规岛和核岛的子环网32、33，子环网32、33连接在主环网3上，用于消防水流通。子环网32、33由数个联络管道连接构成。在本实施例中，分配系统包括分别围绕连接两个核岛的两个子环网33、以及分别围绕连接两个常规岛的两个子环网32，子环网33、32之间通过主环网3的主联络管道31相连接。第一气压蓄能罐11和第二气压蓄能罐21的出口分别连接至两个常规岛的子环网32之间的主联络管道31上。第二隔离阀42设置在常规岛的子环网32和第一管道13之间的主联络管道31上，和常规岛的子环网32和第二管道23之间的主联络管道31上。In the distribution system, the distribution system also includes sub-ring networks 32 and 33 respectively surrounding and connecting the conventional island and the nuclear island. The sub-ring networks 32 and 33 are connected to the main ring network 3 for fire water circulation. The sub-ring networks 32 and 33 are formed by connecting several connecting pipes. In this embodiment, the distribution system includes two sub-ring networks 33 respectively surrounding and connecting two nuclear islands, and two sub-ring networks 32 respectively surrounding and connecting two conventional islands. 3 main connecting pipeline 31 is connected. The outlets of the first pneumatic accumulator tank 11 and the second pneumatic accumulator tank 21 are respectively connected to the main communication pipeline 31 between the sub-ring networks 32 of the two conventional islands. The second isolation valve 42 is arranged on the main communication pipeline 31 between the sub-annular network 32 of the conventional island and the first pipeline 13 , and on the main communication pipeline 31 between the sub-annular network 32 of the conventional island and the second pipeline 23 .
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围内。The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124236A (en) * | 2019-04-17 | 2019-08-16 | 岭澳核电有限公司 | The synchronous method for replacing peripheral workshop fire-fighting water isolation valve of nuclear power station |
| CN110170121A (en) * | 2019-04-17 | 2019-08-27 | 岭澳核电有限公司 | Nuclear power station fire_fighting pipe network system and nuclear power station fire_fighting pipe network method for on-line optimization |
| CN110448844A (en) * | 2019-07-12 | 2019-11-15 | 岭澳核电有限公司 | Method for synchronous replacement of fire water isolation valves in peripheral buildings in nuclear power plants |
| CN111001105A (en) * | 2019-10-24 | 2020-04-14 | 中国核电工程有限公司 | A nuclear island fire-fighting water supply system with single-stack arrangement |
| CN118370950A (en) * | 2024-05-17 | 2024-07-23 | 广东核电合营有限公司 | Nuclear power plant peripheral fire protection system |
-
2014
- 2014-07-24 CN CN201420413859.0U patent/CN204034106U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124236A (en) * | 2019-04-17 | 2019-08-16 | 岭澳核电有限公司 | The synchronous method for replacing peripheral workshop fire-fighting water isolation valve of nuclear power station |
| CN110170121A (en) * | 2019-04-17 | 2019-08-27 | 岭澳核电有限公司 | Nuclear power station fire_fighting pipe network system and nuclear power station fire_fighting pipe network method for on-line optimization |
| CN110170121B (en) * | 2019-04-17 | 2021-05-07 | 岭澳核电有限公司 | Nuclear power station fire protection pipe network system and nuclear power station fire protection pipe network online optimization method |
| CN110448844A (en) * | 2019-07-12 | 2019-11-15 | 岭澳核电有限公司 | Method for synchronous replacement of fire water isolation valves in peripheral buildings in nuclear power plants |
| CN111001105A (en) * | 2019-10-24 | 2020-04-14 | 中国核电工程有限公司 | A nuclear island fire-fighting water supply system with single-stack arrangement |
| CN111001105B (en) * | 2019-10-24 | 2022-09-16 | 中国核电工程有限公司 | Single-pile-arranged nuclear island fire-fighting water supply system |
| CN118370950A (en) * | 2024-05-17 | 2024-07-23 | 广东核电合营有限公司 | Nuclear power plant peripheral fire protection system |
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