An emergency escape system for a marine nuclear power platform

Abstract

The present application discloses an emergency escape system for a marine nuclear power platform, which relates to the technical field of nuclear power platforms. A safety cabin device that is enclosed and oxygen-supplied is used to accommodate staff in case of an accident, move away from the nuclear power platform and sink into seawater; it is also used to float to the water surface after the accident is stable. The safety cabin device includes a separate clean cabin and a contaminated cabin; a passage decontamination device, which includes two escape passages leading to the clean cabin and the contaminated cabin respectively. The two escape passages are formed by the parallel connection of a transfer cabin, a decontamination cabin and several sections of escape pipelines. Whether the transfer cabin and the decontamination cabin have radioactivity can be detected. The clean cabin is used to receive people and objects without radioactivity or with radioactivity but without radioactivity after being decontaminated by the decontamination cabin. The contaminated cabin is used to receive people and objects with radioactivity but without time for decontamination. The emergency escape system of the present application can effectively avoid explosion risks and radiation risks.

Description

Technical Field

[0001] The present application relates to the technical field of nuclear power platforms, and particularly to an emergency escape system for a marine nuclear power platform. Background Art

[0002] Currently, a marine nuclear power platform is a mobile small nuclear power plant at sea, which is an organic combination of a small nuclear reactor and ship engineering. It can provide safe and effective energy supply for offshore oil exploitation and remote islands, and can also be used in the fields of high-power ships and seawater desalination. Arranging nuclear-related facilities such as reactors on the sea surface of the marine nuclear power platform is conducive to preventing the large-scale diffusion of radioactive substances in the event of a severe accident.

[0003] When the marine nuclear power platform encounters emergencies such as nuclear accidents, shipwrecks, and tornadoes, relevant personnel need to complete an emergency shutdown operation in the nuclear emergency control room, and then the relevant personnel carry out an emergency escape and evacuate the nuclear power platform. At this time, the emergency escape system of the marine nuclear power platform is particularly important.

[0004] In the related art, the emergency escape system uses an anti-roll floating life-saving capsule. The main body of the floating life-saving capsule is sealed, and a ventilation pipe is provided at its top. Although the floating life-saving capsule can help relevant technicians escape to a certain extent, the floating life-saving capsule is always on the water surface and does not have the ability to resist floating reactor explosion accidents. Relevant technicians still have the risk of being irradiated by radioactive substances from the floating reactor when using the floating life-saving capsule.

[0005] Therefore, those skilled in the art urgently need to design a new emergency escape system to further ensure the personal safety of relevant technicians. Summary of the Invention

[0006] Aiming at the defects existing in the prior art, the purpose of the present application is to provide an emergency escape system for a marine nuclear power platform, which can effectively avoid explosion risks and radiation risks.

[0007] To achieve the above purpose, the technical solution adopted is: An emergency escape system for a marine nuclear power platform, comprising:

[0008] A safety cabin device that is closed and oxygen-supplied, which is used to accommodate staff during an accident, stay away from the nuclear power platform and sink into seawater; it is also used to float to the water surface after the accident is stabilized; the safety cabin device includes a separate clean cabin and a contaminated cabin;

[0009] A passage decontamination device, which includes two escape passages leading to the clean cabin and the contaminated cabin respectively. The two escape passages are formed by connecting a transfer cabin, a decontamination cabin and several sections of escape pipelines in parallel. Both the transfer cabin and the decontamination cabin can detect whether there is radioactivity;

[0010] The cleaning compartment is used to receive people and objects that are non-radioactive or radioactive but have become non-radioactive after being decontaminated in the decontamination compartment; the contamination compartment is used to receive people and objects that are radioactive but have no time for decontamination.

[0011] On the basis of the above technical solution, the safety cabin device includes a pressure cabin container and several layered plates. The pressure cabin container is divided by the layered plates into a cleaning compartment, a contamination compartment, and an oxygen pumping compartment;

[0012] The oxygen pumping compartment is provided with a pump set, several oxygen cylinder groups, and a battery pack. The battery pack powers the pump set, and the pump set transports the oxygen in the oxygen cylinder groups to the cleaning compartment and the contamination compartment through an oxygen supply pipeline.

[0013] On the basis of the above technical solution, an umbrella-shaped rubber inflatable float is provided at the top of the pressure cabin container, and an annular rubber inflatable float is provided in the middle thereof; the rubber inflatable float is connected to the pump set through an inflation pipeline;

[0014] The rubber inflatable float is in a deflated state. When the accident is stable, the pump set inflates the rubber inflatable float through the inflation pipeline.

[0015] On the basis of the above technical solution, the pressure cabin container is further divided by the layered plates into a bottom ballast tank and a top ballast tank, and several heavy objects are provided in the bottom ballast tank and the top ballast tank.

[0016] On the basis of the above technical solution, CO2 adsorption devices are provided in both the cleaning compartment and the contamination compartment, and a through-cabin gate is provided on the layered plate between the cleaning compartment and the contamination compartment;

[0017] Both the cleaning compartment and the contamination compartment are provided with emergency ventilation pipes and emergency ventilation valves. The emergency ventilation valve is provided at one end inside the emergency ventilation pipe, and the other end of the emergency ventilation valve penetrates the pressure cabin container and leads to the outside.

[0018] On the basis of the above technical solution, the emergency escape system further includes an energy storage and release device. The energy storage and release device includes an energy storage spring in a compressed state; the energy storage spring is used to eject the passage decontamination device away from the nuclear power platform after the passage decontamination device receives people and objects.

[0019] On the basis of the above technical solution, the energy storage and release device further includes a guide rail, a main shaft, a winding drum, a sling, and two hanging brackets. The top end of the hanging bracket is slidably installed on the open guide rail, and the main shaft is fixed between the bottom ends of the two hanging brackets;

[0020] The winding drum is horizontally movably sleeved on the main shaft, the sling is wound around the winding drum, and the two bottom ends of the sling are fixed to the safety cabin device; one end of the energy storage spring is fixed to the nuclear power platform structure, and the other end is fixed to one of the hanging brackets.

[0021] On the basis of the above technical solution, the two escape passages are respectively a clean escape passage and a contaminated escape passage; the contaminated escape passage is formed by connecting the left and right openings of the transfer cabin and the decontamination cabin through three sections of escape pipelines, and the two ends of the contaminated escape passage are respectively connected to the nuclear control room and the contaminated cabin; the clean escape passage is formed by connecting the top openings of the transfer cabin and the decontamination cabin through parallel escape pipelines, and the end of the clean escape passage is connected to the clean cabin;

[0022] Each of the three escape pipelines on the left and right sides of the transfer cabin and the decontamination cabin is provided with a gate; the top openings of the transfer cabin and the decontamination cabin are provided with a gate.

[0023] On the basis of the above technical solution, the connection between the clean escape channel and the clean cabin, and the connection between the polluted escape channel and the polluted cabin are both connected through flanges, the flanges are tightened by clamps, the clamps are tightened by accumulators, and the accumulators are released when receiving a remote control signal.

[0024] On the basis of the above technical solution, radioactive detection devices are installed in the transfer cabin and the decontamination cabin; the decontamination cabin is provided with a decontamination cabin environmental control system and a floor drain, the decontamination cabin environmental control system adjusts the temperature and humidity of the decontamination cabin, and the floor drain is used to discharge the sewage after decontamination in one direction.

[0025] The beneficial effects of the technical solution provided by this application include:

[0026] The emergency escape system of the present application can first evacuate people and objects to the safety cabin device when an accident occurs. The safety cabin device is far away from the nuclear power platform and sinks quickly, and can resist the floating reactor explosion accident through seawater. At the same time, the seawater can also shield the radioactive substances of the floating reactor; after the accident, the safety cabin device floats to the surface of the water to wait for rescue; compared with the floating lifeboat of the prior art, the emergency escape system of the present application evacuates from underwater and shields the radioactive substances of the floating reactor through seawater, which greatly improves safety; at the same time, the emergency escape system of the present application, the channel disinfection device also has a disinfection function, which can disinfect the radioactive substances during the escape process, greatly improving the evacuation efficiency; further, the safety cabin device is divided into a clean cabin and a contaminated cabin for zoning management. When time is tight and there is no time for disinfection, it can also be evacuated to the contaminated cabin, further improving the evacuation efficiency and ensuring the personal safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 Schematic diagram of the emergency escape system provided by the embodiment of the present application;

[0029] Figure 2 Schematic diagram of the passage decontamination device provided by the embodiment of the present application;

[0030] Figure 3 Schematic diagram of the energy storage and release device provided by the embodiment of the present application;

[0031] Figure 4 Schematic diagram of the safety cabin device provided by the embodiment of the present application;

[0032] Reference numerals:

[0033] 1. Passage decontamination device; 1.1. Escape system gate; 1.3. Transfer cabin top gate; 1.4. Transfer cabin left gate; 1.6. Decontamination cabin top gate; 1.7. Decontamination cabin left gate;

[0034] 1.8. Radioactivity detection device; 1.9. Decontamination cabin environmental control system; 1.10. Decontamination water pipeline; 1.11. Sprinkler head; 1.12. Floor drain; 1.13. Transfer cabin; 1.14. Decontamination cabin; 1.15. Clamp; 1.17. Accumulator; 1.19. Escape pipeline; 1.20. Flange;

[0035] 2. Energy storage and release device; 2.1. Guide rail; 2.2. Energy storage spring; 2.3. Hanger; 2.4. Main shaft; 2.5. Drum; 2.6. Suspension cable;

[0036] 3. Safety cabin device; 3.1. Pressure cabin container; 3.2. Laminated plate; 3.3. Bottom ballast tank; 3.4. Pump oxygen cabin; 3.5. Contaminated cabin; 3.6. Clean cabin; 3.7. Top ballast tank; 3.8. Rubber inflatable floating body;

[0037] 3.4.1. Oxygen cylinder group; 3.4.2. Battery pack; 3.4.3. Pump group; 3.4.4. Inflation pipeline; 3.4.5. Oxygen supply pipeline;

[0038] 3.5.1. CO2 adsorption device; 3.5.2. Through-cabin gate; 3.5.3. Inlet gate; 3.5.5. Oxygen supply sprinkler head; 3.5.6. Emergency ventilation valve; 3.5.7. Emergency ventilation pipe. Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] As Figures 1 to 4 shown, an embodiment of an emergency escape system for a marine nuclear power platform is disclosed in the present application, which is mainly used for emergency evacuation of staff when the marine nuclear power platform encounters emergencies such as nuclear accidents, shipwrecks, and tornadoes.

[0041] The emergency escape system includes a safety cabin device 3 and a passage decontamination device 1. The safety cabin device 3 is used to accommodate staff and important items during emergency escape. The passage decontamination device 1 leads to the passage decontamination device 1, and at the same time, the passage decontamination device 1 has a decontamination function and can clean radioactive substances.

[0042] The safety cabin device 3 is in a closed state and has an oxygen supply function inside. It is used to accommodate staff during an accident, stay away from the nuclear power platform and sink into seawater, shield the radioactive substances of the nuclear reactor through seawater, and avoid the danger of explosion, greatly improving the safety performance; it is also used to float to the water surface after the accident is stable and wait for rescue safely and smoothly. The safety cabin device 3 includes a separate clean cabin 3.6 and a contaminated cabin 3.5. The clean cabin 3.6 is used to accommodate people and objects without radioactivity, and the contaminated cabin 3.5 accommodates people and objects with radioactivity.

[0043] The passage decontamination device 1 includes two escape passages leading to the clean cabin 3.6 and the contaminated cabin 3.5 respectively. The two escape passages are formed by parallel connection of a transfer cabin 1.13, a decontamination cabin 1.14 and several sections of escape pipelines 1.19. Both the transfer cabin 1.13 and the decontamination cabin 1.14 can detect whether there is radioactivity.

[0044] The clean cabin 3.6 is used to receive people and objects without radioactivity, or those with radioactivity but without radioactivity after being decontaminated in the decontamination cabin 1.14. The contaminated cabin 3.5 is used to receive people and objects with radioactivity but without time for decontamination, that is, when an emergency occurs and there is no time for decontamination, people and objects with radioactivity need to be urgently evacuated to the contaminated cabin 3.5.

[0045] The emergency escape system of the present application can first evacuate people and objects to the safety cabin device 3 when an accident occurs. The safety cabin device 3 is far away from the nuclear power platform and sinks quickly, and can resist the floating reactor explosion accident through seawater. At the same time, the seawater can also shield the radioactive substances of the floating reactor. After the accident, the safety cabin device 3 floats to the surface of the water to wait for rescue. Compared with the floating lifeboat of the prior art, the emergency escape system of the present application evacuates from underwater and shields the radioactive substances of the floating reactor through seawater, which greatly improves safety.

[0046] At the same time, the emergency escape system of the present application, the channel decontamination device 1 also has a decontamination function, which can decontaminate radioactive substances during the escape process, greatly improving the evacuation efficiency.

[0047] Furthermore, the safety cabin device 3 is zoned and divided into a clean cabin 3.6 and a contaminated cabin 3.5. When time is tight and there is no time for decontamination, evacuation to the contaminated cabin 3.5 can be carried out, further improving the evacuation efficiency and ensuring the personal safety of the staff.

[0048] like Figure 4 As shown, in one embodiment, the safety cabin device 3 comprises a pressure cabin container 3.1 and a plurality of layered plates 3.2, wherein the pressure cabin container 3.1 is divided into a clean cabin 3.6, a contaminated cabin 3.5 and a pumped oxygen cabin 3.4 by the layered plates 3.2. The pumped oxygen cabin 3.4 is provided with a pump group 3.4.3, a plurality of oxygen cylinder groups 3.4.1 and a battery group 3.4.2, wherein the battery group 3.4.2 supplies power to the pump group 3.4.3, and the pump group 3.4.3 delivers oxygen in the oxygen cylinder group 3.4.1 to the clean cabin 3.6 and the contaminated cabin 3.5 through the oxygen supply pipeline 3.4.5.

[0049] The emergency escape system of the present application evacuates from underwater, but a large amount of compressed oxygen is prepared in advance for the staff to breathe underwater.

[0050] Preferably, oxygen supply nozzles 3.5.5 are provided at the ends of the oxygen supply pipelines 3.4.5 located in the clean cabin 3.6 and the contaminated cabin 3.5. The oxygen supply nozzles 3.5.5 are conducive to the rapid and uniform distribution of oxygen in the closed cavity.

[0051] In one embodiment, an umbrella-shaped rubber inflatable float 3.8 is arranged on the top of the pressure chamber container 3.1, and a ring-shaped rubber inflatable float 3.8 is arranged in the middle; the rubber inflatable float 3.8 is connected to the pump group 3.4.3 through the inflation pipeline 3.4.4.

[0052] The rubber inflatable float 3.8 is in a deflated state. After the accident, the pump group 3.4.3 inflates the rubber inflatable float 3.8 through the inflation pipeline 3.4.4, and the safety cabin device 3 floats up. Regarding the accident stability period, a certain time interval can be set, first sinking for a certain time interval, and then inflating and floating; the time interval is enough for the accident to occur and reach the stability period.

[0053] As Figure 4 shown, in one embodiment, the pressure cabin container 3.1 is further divided by a layered plate 3.2 into a bottom ballast tank 3.3 and a top ballast tank 3.7. A number of heavy objects are arranged in the bottom ballast tank 3.3 and the top ballast tank 3.7, which is conducive to quickly sinking away from the nuclear power platform in case of an accident. The buoyancy generated by the rubber inflatable floating body 3.8 can overcome the gravity of the bottom ballast tank 3.3 and the top ballast tank 3.7.

[0054] In one embodiment, CO2 adsorption devices 3.5.1 are arranged in both the cleaning cabin 3.6 and the pollution cabin 3.5. The CO2 adsorption devices 3.5.1 can adsorb CO2, thereby increasing the breathing time in the sealed cavity.

[0055] A through-cabin gate 3.5.2 is arranged on the layered plate 3.2 between the cleaning cabin 3.6 and the pollution cabin 3.5. In case of an emergency, the through-cabin gate 3.5.2 can be opened to increase the activity space of the staff.

[0056] Both the cleaning cabin 3.6 and the pollution cabin 3.5 are provided with an emergency breather pipe 3.5.7 and an emergency breather valve 3.5.6. The emergency breather valve 3.5.6 is arranged at one end inside the emergency breather pipe 3.5.7, and the other end of the emergency breather valve 3.5.6 penetrates through the pressure cabin container 3.1 and leads to the outside. When the safety cabin device 3 floats to the sea surface again after sinking, the staff can breathe through the emergency breather pipe 3.5.7, and can still breathe normally after the oxygen in the safety cabin device 3 is consumed.

[0057] Specifically, the weight of the bottom ballast tank 3.3 is much greater than that of the top ballast tank 3.7, so that the safety cabin device 3 can also maintain a vertical state as Figure 4 shown after floating to the sea surface.

[0058] Preferably, inlet gates 3.5.3 are arranged at the inlets of both the cleaning cabin 3.6 and the pollution cabin 3.5, and the inlet gates 3.5.3 are arranged at the ports of the escape pipeline 1.19 of the decontamination device 1.

[0059] In one embodiment, the emergency escape system further includes an energy storage and release device 2. The energy storage and release device includes an energy storage spring 2.2 in a compressed state; the energy storage spring 2.2 is used to eject the channel decontamination device 1 away from the nuclear power platform after the channel decontamination device 1 receives people and objects. In the emergency escape system of the present application, the energy storage spring 2.2 ejects the safety cabin device 3 away from the nuclear power platform, further enhancing the safety, especially avoiding the nuclear radiation area of the floating reactor. Specifically, the floating reactor herein refers to the nuclear reactor of the nuclear power platform.

[0060] In one embodiment, the energy storage and release device 2 further includes a guide rail 2.1, a main shaft 2.4, a drum 2.5, a sling 2.6, and two hanging brackets 2.3. The top ends of the hanging brackets 2.3 are slidably mounted on the open guide rail 2.1, and the main shaft 2.4 is fixed between the bottom ends of the two hanging brackets 2.3. The drum 2.5 is horizontally movably sleeved on the main shaft 2.4, the sling 2.6 is wound around the drum 2.5, and the two bottom ends of the sling 2.6 are fixed to the safety cabin device 3; one end of the energy storage spring 2.2 is fixed to the nuclear power platform structure, and the other end is fixed to one of the hanging brackets 2.3.

[0061] Before an accident occurs, the sling 2.6 is tightened and the energy storage spring 2.2 is in a compressed state. After an accident occurs, after the personnel evacuate to the safety cabin device 3, the energy storage spring 2.2 is released, ejecting the safety cabin device 3 and the hanging bracket 2.3 outward, so that the safety cabin device 3 moves away from the nuclear power platform; after moving away a certain distance or ejecting for a certain period of time, the sling 2.6 is disengaged from the safety cabin device 3.

[0062] Further, the two escape channels are a clean escape channel and a contaminated escape channel respectively.

[0063] The contaminated escape channel is formed by connecting the left and right openings of the transfer cabin 1.13 and the decontamination cabin 1.14 through three sections of escape pipelines 1.19. The two ends of the contaminated escape channel are respectively communicated with the nuclear control room and the contaminated cabin 3.5. The clean escape channel is formed by connecting the top openings of the transfer cabin 1.13 and the decontamination cabin 1.14 through parallel escape pipelines 1.19. The end of the clean escape channel is communicated with the clean cabin 3.6. Each of the three sections of escape pipelines 1.19 on the left and right sides of the transfer cabin 1.13 and the decontamination cabin 1.14 is provided with a gate; the top openings of the transfer cabin 1.13 and the decontamination cabin 1.14 are both provided with gates. Radioactive detection devices 1.8 are arranged in both the transfer cabin 1.13 and the decontamination cabin 1.14.

[0064] Specifically, when the staff escapes, they first reach the transfer cabin 1.13 to detect whether there is radioactivity on their bodies. If not, they enter the clean escape channel through the top opening of the transfer cabin 1.13 and go directly to the clean cabin. If they reach the transfer cabin 1.13 and detect radioactivity on their bodies, they further walk to the decontamination cabin 1.14 for decontamination to remove the radioactive substances until the radioactive detection device 1.8 detects no radioactivity, and then enter the clean escape channel through the top opening of the decontamination cabin 1.14 and go directly to the clean cabin. However, if the situation is urgent and radioactivity is detected on the body but there is no time for decontamination, they go directly to the contaminated cabin through the contaminated escape channel.

[0065] Specifically, an escape system gate 1.1 is provided between the escape pipeline 1.19 of the contamination escape passage and the nuclear control room, a top gate 1.3 of the transfer cabin is provided at the opening on the top of the transfer cabin, a left gate 1.4 of the transfer cabin is provided at the port of the left escape pipeline 1.19 of the transfer cabin, a top gate 1.6 of the decontamination cabin is provided at the opening on the top of the decontamination cabin, and a left gate 1.7 of the decontamination cabin is provided at the port of the left escape pipeline 1.19 of the decontamination cabin. The above gates are opened at appropriate times.

[0066] In one embodiment, the joints between the clean escape passage and the clean cabin 3.6, and between the contaminated escape passage and the contaminated cabin 3.5 are connected by flange pairs 1.20. The flange pairs 1.20 are tightened by clamps 1.15, and the clamps 1.15 are tightened by accumulators 1.17. The accumulators 1.17 are loosened when receiving a remote control signal. After the staff escapes to the safety cabin device 3, the accumulators 1.17 are controlled by a remote controller, so that the clamps 1.15 are loosened, realizing the separation of the passage decontamination device 1 and the safety cabin device 3.

[0067] Specifically, as Figure 2 and Figure 4 shown, half flanges 1.20 are provided at the ports of the leftmost escape pipelines 1.19 of the clean escape passage and the contaminated escape passage, and the other half flanges 1.20 are provided at the corresponding openings of the clean cabin (3.6) and the contaminated cabin (3.5). The two half flanges 1.20 are fixed by a clamp 1.15, and the clamp 1.15 is tightened by an accumulator 1.17.

[0068] It should be noted that the sling 2.6 in the previous text is connected to the safety cabin device 3 in a similar way. Similarly, after receiving a remote control signal, the connection between the sling 2.6 and the safety cabin device 3 is disconnected, which will not be elaborated herein.

[0069] In one embodiment, the decontamination cabin 1.14 is provided with a decontamination cabin environmental control system 1.9 and a floor drain 1.12. The decontamination cabin environmental control system 1.9 adjusts the temperature and humidity of the decontamination cabin 1.14, so that the decontamination cabin 1.14 meets the best decontamination conditions and improves the decontamination efficiency. The floor drain 1.12 is used to discharge the decontaminated sewage unidirectionally outward and discharge the sewage into the wastewater treatment system of the nuclear power platform.

[0070] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0071] It should be noted that in the present application, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0072] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An emergency escape system for a marine nuclear power platform, characterized in that, Comprising: A closed and oxygen-supplied safety cabin device (3) for accommodating staff in case of an accident, staying away from the nuclear power platform and sinking into the sea water; It is also used to float to the water surface after the accident is stable; the safety cabin device (3) includes a separate clean cabin (3.6) and a contaminated cabin (3.5); A passage decontamination device (1) comprising two escape passages leading to the clean cabin (3.6) and the contaminated cabin (3.5) respectively. The two escape passages are formed by parallel connection of a transfer cabin (1.13), a decontamination cabin (1.14) and several sections of escape pipelines (1.19). Both the transfer cabin (1.13) and the decontamination cabin (1.14) can detect whether there is radioactivity; The clean cabin (3.6) is used to receive people and objects without radioactivity or with radioactivity but without radioactivity after being decontaminated by the decontamination cabin (1.14); the contaminated cabin (3.5) is used to receive people and objects with radioactivity but without time for decontamination; The two escape passages are respectively a clean escape passage and a contaminated escape passage; the contaminated escape passage is formed by connecting the left and right openings of the transfer cabin (1.13) and the decontamination cabin (1.14) through three sections of escape pipelines (1.19). The two ends of the contaminated escape passage are respectively connected to the nuclear control room and the contaminated cabin (3.5); the clean escape passage is formed by connecting the top openings of the transfer cabin (1.13) and the decontamination cabin (1.14) through parallel escape pipelines (1.19). The end of the clean escape passage is connected to the clean cabin (3.6).

2. The emergency escape system of a marine nuclear power platform according to claim 1, characterized in that: The safety cabin device (3) includes a pressure cabin container (3.1) and several layered plates (3.2). The pressure cabin container (3.1) is divided by the layered plates (3.2) into a clean cabin (3.6), a contaminated cabin (3.5) and an oxygen pumping cabin (3.4); The oxygen pumping cabin (3.4) is provided with a pump group (3.4.3), several oxygen cylinder groups (3.4.1) and a battery group (3.4.2). The battery group (3.4.2) powers the pump group (3.4.3), and the pump group (3.4.3) transports the oxygen in the oxygen cylinder groups (3.4.1) to the clean cabin (3.6) and the contaminated cabin (3.5) through an oxygen supplement pipeline (3.4.5).

3. The emergency escape system for a marine nuclear power platform according to claim 2, characterized in that: The top of the pressure cabin container (3.1) is provided with an umbrella-shaped rubber inflatable float (3.8), and an annular rubber inflatable float (3.8) is provided in the middle thereof; the rubber inflatable float (3.8) is connected to the pump group (3.4.3) through an inflation pipeline (3.4.4); The rubber inflatable float (3.8) is in a deflated state. After the accident is stable, the pump group (3.4.3) inflates the rubber inflatable float (3.8) through the inflation pipeline (3.4.4).

4. The emergency escape system of a marine nuclear power platform according to claim 2, characterized in that: The pressure cabin container (3.1) is also divided by the layered plates (3.2) into a bottom ballast tank (3.3) and a top ballast tank (3.7), and several heavy objects are provided in the bottom ballast tank (3.3) and the top ballast tank (3.7).

5. The emergency escape system of a marine nuclear power platform according to claim 2, characterized in that: A CO2 adsorption device (3.5.1) is provided in both the clean chamber (3.6) and the contaminated chamber (3.5), and a through-hull gate (3.5.2) is provided on the stratified plate (3.2) between the clean chamber (3.6) and the contaminated chamber (3.5); Both the clean chamber (3.6) and the contaminated chamber (3.5) are provided with an emergency vent pipe (3.5.7) and an emergency vent valve (3.5.6). The emergency vent valve (3.5.6) is provided at one end inside the emergency vent pipe (3.5.7), and the other end of the emergency vent valve (3.5.6) penetrates the pressure hull container (3.1) and leads to the outside.

6. The emergency escape system of a marine nuclear power platform according to claim 1, characterized in that: The emergency escape system further includes an energy storage and release device (2), and the energy storage and release device includes an energy storage spring (2.2) in a compressed state; the energy storage spring (2.2) is used to eject the passage decontamination device (1) away from the nuclear power platform after the passage decontamination device (1) receives people and objects.

7. The emergency escape system of a marine nuclear power platform according to claim 6, characterized in that: The energy storage and release device (2) further includes a guide rail (2.1), a main shaft (2.4), a reel (2.5), a sling (2.6) and two hanging brackets (2.3). The top ends of the hanging brackets (2.3) are slidably mounted on the open guide rail (2.1), and the main shaft (2.4) is fixed between the bottom ends of the two hanging brackets (2.3); The reel (2.5) is horizontally movably sleeved on the main shaft (2.4), the sling (2.6) is wound around the reel (2.5), and the two bottom ends of the sling (2.6) are fixed to the safety cabin device (3); one end of the energy storage spring (2.2) is fixed to the nuclear power platform structure, and the other end is fixed to one of the hanging brackets (2.3).

8. The emergency escape system of a marine nuclear power platform as claimed in claim 1, wherein: Three escape pipelines (1.19) are provided on the left and right sides of the transfer cabin (1.13) and the decontamination cabin (1.14), and a gate is provided on each escape pipeline (1.19); gates are provided at the top openings of the transfer cabin (1.13) and the decontamination cabin (1.14).

9. The emergency escape system of a marine nuclear power platform according to claim 8, characterized in that: The connection between the clean escape passage and the clean chamber (3.6) and the connection between the contaminated escape passage and the contaminated chamber (3.5) are connected by flange mating (1.20). The flange (1.20) is tightened by a clamp (1.15), and the clamp (1.15) is tightened by an accumulator (1.17), and the accumulator (1.17) releases when receiving a remote control signal.

10. The emergency escape system of a marine nuclear power platform as claimed in claim 1, wherein: Radioactivity detection devices (1.8) are provided in both the transfer cabin (1.13) and the decontamination cabin (1.14); the decontamination cabin (1.14) is provided with a decontamination cabin environmental control system (1.9) and a floor drain (1.12). The decontamination cabin environmental control system (1.9) adjusts the temperature and humidity of the decontamination cabin (1.14), and the floor drain (1.12) is used to discharge the decontaminated sewage unidirectionally to the outside.

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