A salt water separation and recovery device for dealing with leakage of a molten salt steam generating device

Abstract

The embodiment of the present disclosure provides a salt water separation and recovery device for coping with leakage of a molten salt steam generating device, comprising a first pipeline, a salt water separation reactor, a second pipeline, a pressure release valve and a stop valve; the first end of the first pipeline is connected with the molten salt steam generating device, and the second end is connected with the salt water separation reactor; the second pipeline is communicated with a steam outlet of the salt water separation reactor; the pressure release valve is arranged in the first pipeline; and the stop valve is arranged in the second pipeline. In the present disclosure, the salt water mixture after the leakage of the molten salt steam generating device is quickly recovered, the high-pressure salt water mixture is recovered into the salt water separation reactor to expand and release pressure and is separated, so that the problem of damage of the overpressure equipment after the leakage of the molten salt steam generating device is solved, and the operation reliability and safety of the molten salt steam generating device are greatly improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure belongs to the technical field of molten salt vapor generation device of molten salt energy storage system, and particularly relates to a salt water separation and recovery device for dealing with leakage of a molten salt vapor generation device. BACKGROUND

[0002] Molten salt is a molten body formed after salt is melted, has the characteristics of high conventional use temperature, wide temperature range, large specific heat capacity, and high solidification point, and is an important heat transfer medium used in molten salt photo-thermal power stations, molten salt energy storage systems, and some chemical fields. The molten salt vapor generation device is a commonly used heat exchange equipment of the molten salt system, and plays an irreplaceable role in the operation of the molten salt system. The molten salt vapor generation device has a complex internal structure, and is difficult to maintain after a leakage fault occurs. When the molten salt vapor generation device has a leakage accident, a large amount of steam and water will enter the molten salt system, causing overpressure of the molten salt system and endangering the safety of the equipment. If the system is not shut down in time to discharge the salt water mixture, the steam and water may enter the molten salt storage tank, causing overpressure of the tank and affecting the safety of the storage tank.

[0003] In the existing molten salt heat storage system, when the molten salt vapor generation device has a leakage accident, the molten salt after leakage is generally discharged into a salt discharge pit to prevent equipment damage and prevent the accident from expanding. The molten salt is cleaned after cooling. The molten salt discharged into the salt discharge pit is externally contaminated and cannot be recycled, resulting in waste of molten salt and posing a major safety and environmental risk.

[0004] Therefore, how to solve the above problems has become a technical problem to be solved by those skilled in the art. SUMMARY

[0005] The embodiment of the present disclosure aims to at least solve one of the technical problems existing in the prior art, and provides a salt water separation and recovery device for dealing with leakage of a molten salt vapor generation device.

[0006] In a first aspect, the embodiment of the present disclosure provides a salt water separation and recovery device for dealing with leakage of a molten salt vapor generation device, comprising: a first pipeline, a salt water separation reactor, a second pipeline, a pressure release valve, and a stop valve.

[0007] The first end of the first pipeline is connected with the molten salt vapor generation device, and the second end is connected with the salt water separation reactor. The second pipeline is in communication with the steam outlet of the salt water separation reactor. The pressure release valve is arranged in the first pipeline. The stop valve is arranged in the second pipeline.

[0008] When the molten salt steam generator leaks, the salt side pipeline pressure of the first pipeline rises, and the pressure is transmitted to the pressure relief valve through the first pipeline. When the pressure exceeds the preset action pressure of the pressure relief valve, the pressure relief valve and the stop valve are linked to open, so that the high-temperature molten salt and steam mixture in the molten salt steam generator enters the salt water separation reactor through the first pipeline to release pressure.

[0009] Optionally, a manual stop valve is arranged in the first pipeline, and the manual stop valve is located between the pressure relief valve and the salt water separation reactor.

[0010] Optionally, a molten salt storage tank, a molten salt pump and a third pipeline are further included; the first end of the third pipeline is connected with the salt water separation reactor, and the second end of the third pipeline is connected with the molten salt storage tank; and the molten salt pump is arranged in the third pipeline.

[0011] Optionally, along the height direction of the salt water separation reactor, the first end of the third pipeline is arranged below the second end of the first pipeline.

[0012] Optionally, the salt water separation reactor includes a tank body and a heater, the heater is arranged at the bottom of the tank body, and the second pipeline is arranged at the top of the tank body.

[0013] Optionally, along the height direction of the tank body, the heater is arranged below the second end of the first pipeline.

[0014] In a second aspect of the embodiments of the present disclosure, a molten salt steam generation system is provided, including a molten salt steam generation device and the salt water separation and recovery device according to claim 3 or 4.

[0015] Optionally, the molten salt steam generation device includes a molten salt steam generator, and a feedwater pipeline, a steam pipeline, a high-temperature molten salt pipeline, a low-temperature molten salt pipeline and a heating pipeline in communication with the molten salt steam generator, and the heating pipeline communicates the feedwater pipeline and the steam pipeline.

[0016] Optionally, the high-temperature molten salt pipeline is arranged at the top of the molten salt steam generator, and the low-temperature molten salt pipeline is arranged at the bottom of the molten salt steam generator.

[0017] Optionally, along the flow direction of the molten salt, the molten salt steam generator, the salt water separation reactor and the molten salt storage tank are arranged in a vertical direction in a descending order of height.

[0018] The embodiments of the present disclosure have the following beneficial effects:

[0019] The present disclosure quickly recovers the saltwater mixture after the leakage of the molten salt steam generation device, expands and depressurizes the high-pressure saltwater mixture in the saltwater separation reactor, and separates the high-pressure saltwater mixture, thereby solving the problem of damage to the overpressure equipment after the leakage of the molten salt steam generation device, and greatly improving the operation reliability and safety of the molten salt steam generation device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic diagram of a saltwater separation and recovery device connected to an embodiment of the present disclosure; wherein the connection relationship between the molten salt steam generation device and the saltwater separation and recovery device is shown.

[0021] In the figure, 1 is a molten salt steam generation device; 2 is a feedwater pipeline; 3 is a steam pipeline; 4 is a high-temperature molten salt pipeline; 5 is a low-temperature molten salt pipeline; 6 is a first pipeline section; 7 is a pressure release valve; 8 is a second pipeline section; 9 is a manual stop valve; 10 is a third pipeline section; 11 is a saltwater separation reactor; 12 is a molten salt electric heater; 13 is a second pipeline; 14 is a stop valve; 15 is an emptying pipeline; 16 is a fifth pipeline section; 17 is a molten salt pump; 18 is a sixth pipeline section; and 19 is a molten salt storage tank. DETAILED DESCRIPTION

[0022] In order for those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be further described in detail below in combination with the drawings and specific embodiments.

[0023] The embodiments of the present application will be further described in detail below in combination with the drawings and examples. The detailed description of the following examples and the drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application, i.e., the present application is not limited to the described embodiments. In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error.

[0024] In the description of the present application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] As shown in Figure 1 A salt water separation and recovery device for dealing with leakage of a molten salt steam generating device, the salt water separation and recovery device comprising a first pipeline, a salt water separation reactor 11, a second pipeline 13, a pressure relief valve 7 and a stop valve 14.

[0026] The first end of the first pipeline is connected with the molten salt steam generating device 1, and the second end is connected with the salt water separation reactor 11. The second pipeline 13 is in communication with the steam outlet of the salt water separation reactor 11. The pressure relief valve 7 is arranged in the first pipeline, and the stop valve 14 is arranged in the second pipeline 13.

[0027] When the molten salt steam generating device 1 leaks, the salt side pipeline pressure of the first pipeline rises, and the pressure is transmitted to the pressure relief valve 7 through the first pipeline. When the pressure exceeds the preset action pressure of the pressure relief valve 7, the pressure relief valve 7 and the stop valve 14 are linked to open, so that the high-temperature molten salt and water mixture in the molten salt steam generating device 1 enters the salt water separation reactor 11 through the first pipeline to release pressure. The salt water separation reactor 11 is used for separating the high-temperature molten salt and water mixture.

[0028] In the present disclosure, the salt water mixture after the leakage of the molten salt steam generating device 1 is quickly recovered, and the high-pressure salt water mixture is recovered into the salt water separation reactor 11 to expand and release pressure and to separate, thereby solving the problem of overpressure equipment damage after the leakage of the molten salt steam generating device 1, and greatly improving the operation reliability and safety of the molten salt steam generating device 1.

[0029] In some embodiments, the stop valve 14 is an electric stop valve.

[0030] In some embodiments, the salt water separation and recovery device further comprises a manual stop valve 9, which is arranged in the first pipeline and located between the pressure relief valve 7 and the salt water separation reactor 11.

[0031] In the present disclosure, on the one hand, in an emergency, the flow of molten salt from the molten salt steam generator to the salt water separation reactor can be cut off by closing the manual stop valve 9, preventing safety problems caused by molten salt leakage.

[0032] In the second aspect, when maintenance or inspection of the brine separation reactor is required, the manual stop valve 9 can be closed to isolate the brine separation reactor, facilitating maintenance work without affecting other parts of the system.

[0033] In the third aspect, the presence of the manual stop valve 9 increases the flexibility of operation, allowing the flow of molten salt to be adjusted at any time as needed, which helps to optimize the operating state of the system.

[0034] In the fourth aspect, if the pressure relief valve 7 is activated, the manual stop valve 9 can be used to shut off the flow of molten salt to prevent excessive molten salt from entering the brine separation reactor, protecting the equipment from damage.

[0035] In some embodiments, the brine separation and recovery device further comprises a molten salt storage tank 19, a molten salt pump 17, and a third pipeline. The first end of the third pipeline is connected to the brine separation reactor 11, the second end is connected to the molten salt storage tank 19, and the molten salt pump 17 is arranged in the third pipeline.

[0036] In some embodiments, along the height direction of the brine separation reactor 11, the first end of the third pipeline is arranged below the second end of the first pipeline. This design can ensure that the molten salt can flow smoothly under the action of gravity, reducing additional energy consumption and helping to improve the operating efficiency and stability of the entire system. In addition, this layout also helps to optimize the spatial arrangement of the equipment, making the overall design more compact and reasonable.

[0037] In some embodiments, the brine separation reactor 11 comprises a tank body and a heater 12, the heater 12 is arranged at the bottom of the tank body, and the second pipeline 13 is arranged at the top of the tank body. The heater 12 is positioned at the bottom to ensure that heat can be effectively transferred to the molten salt, while also helping to promote the upward evaporation of water. The second pipeline 13 is arranged at the top of the tank body, so that the heated water vapor rises and is discharged through the second pipeline 13. The heater 12 is a molten salt electric heater.

[0038] In some embodiments, along the height direction of the tank body, the heater 12 is arranged below the second end of the first pipeline. With this design, the treated molten salt (which may have removed most of the water) can be directed out of the tank body from a lower position through the third pipeline, thereby effectively utilizing the principles of gravity and thermodynamics to improve the efficiency of the system, reduce energy consumption, and simplify the complexity of the system.

[0039] A second aspect of an embodiment of the present disclosure provides a molten salt steam generation system, comprising: a molten salt steam generation device 1, and the above-mentioned brine separation and recovery device.

[0040] In some embodiments, the molten salt steam generator 1 comprises a molten salt steam generator, a feedwater conduit 2, a steam conduit 3, a high temperature molten salt conduit 4, a low temperature molten salt conduit 5 and a heating conduit in communication with the feedwater conduit 2 and the steam conduit 3.

[0041] The high temperature molten salt enters the molten salt steam generator from the high temperature molten salt conduit 4, and through heat exchange with the internal water or feedwater, transfers heat to the water, causing it to evaporate into steam. The low temperature molten salt is discharged from the bottom of the molten salt steam generator through the low temperature molten salt conduit 5, and this part of the molten salt has released most of the heat and its temperature has decreased. The feedwater enters the heating conduit through the feedwater conduit 2, is heated in the heating conduit, and then enters the interior of the molten salt steam generator to continue to be heated until it becomes steam. The steam is discharged from the molten salt steam generator through the steam conduit 3, and can be used for power generation or other purposes in industrial processes.

[0042] In some embodiments, the high temperature molten salt conduit 4 is arranged at the top of the molten salt steam generator, and the low temperature molten salt conduit 5 is arranged at the bottom of the molten salt steam generator.

[0043] The high temperature molten salt conduit 4 is arranged at the top of the molten salt steam generator, so that the high temperature molten salt enters the molten salt steam generator from the top, which can ensure that the molten salt is uniformly distributed throughout the device, and is conducive to efficient heat transfer during heat exchange.

[0044] The low temperature molten salt conduit 5 is arranged at the bottom of the molten salt steam generator, so that the molten salt with reduced temperature after heat exchange is discharged from the bottom, which can utilize gravity to help the molten salt flow smoothly, and is conducive to reducing the need for pumping.

[0045] In some embodiments, in the direction of molten salt flow, the molten salt steam generator, the brine separation reactor 11 and the molten salt storage tank 19 are arranged in the vertical direction with decreasing heights in sequence. With this design, gravity can be used to assist the flow of molten salt, reduce the need for pumping, and optimize the thermodynamic efficiency of the entire system. Further, this design can improve the reliability and efficiency of the system, and can help simplify the system structure and reduce operating costs.

[0046] The salt water mixture collecting part of the application is connected with the molten salt steam generating device 1 through a pipeline, and a pressure release valve 7 and a manual stop valve 9 are installed on the pipeline, wherein the pressure release valve 7 can be automatically opened according to a preset pressure value or be opened through remote operation, in the event of a leakage accident, high-temperature and high-pressure steam will enter the molten salt side to cause the molten salt system to be over-pressured, when the pressure reaches the preset pressure value of the pressure release valve 7, the pressure release valve 7 will be automatically opened to recover the medium in the molten salt steam generating device 1, and the manual stop valve 9 serves as a manual hard isolation point during equipment maintenance, ensuring that the salt water separation and recovery device can be reliably isolated from the molten salt steam generating device 1 under maintenance.

[0047] The salt water mixture collecting part of the application is connected with the molten salt steam generating device 1 through a pipeline, and a pressure release valve 7 and a manual stop valve 9 are installed on the pipeline, wherein the pressure release valve 7 can be automatically opened according to a preset pressure value or be opened through remote operation, in the event of a leakage accident, high-temperature and high-pressure steam will enter the molten salt side to cause the molten salt system to be over-pressured, when the pressure reaches the preset pressure value of the pressure release valve 7, the pressure release valve 7 will be automatically opened to recover the medium in the molten salt steam generating device 1, and the manual stop valve 9 serves as a manual hard isolation point during equipment maintenance, ensuring that the salt water separation and recovery device can be reliably isolated from the molten salt steam generating device 1 under maintenance.

[0048] The salt water mixture collecting part of the application is connected with the molten salt steam generating device 1 through a pipeline, and a pressure release valve 7 and a manual stop valve 9 are installed on the pipeline, wherein the pressure release valve 7 can be automatically opened according to a preset pressure value or be opened through remote operation, in the event of a leakage accident, high-temperature and high-pressure steam will enter the molten salt side to cause the molten salt system to be over-pressured, when the pressure reaches the preset pressure value of the pressure release valve 7, the pressure release valve 7 will be automatically opened to recover the medium in the molten salt steam generating device 1, and the manual stop valve 9 serves as a manual hard isolation point during equipment maintenance, ensuring that the salt water separation and recovery device can be reliably isolated from the molten salt steam generating device 1 under maintenance.

[0049] The salt water separation and recovery device for dealing with leakage of the molten salt steam generation device 1 plays a role of overpressure protection, can automatically release pressure and collect salt water mixture after leakage of the molten salt steam generation device 1, can perform secondary separation on the discharged salt water mixture, restore the quality of the molten salt, and perform secondary recycling of the molten salt, and also eliminates the safety risks such as overpressure and high temperature after leakage of the molten salt steam generation device 1. The problems of leakage disposal and molten salt recovery of the molten salt steam generation device 1 are fundamentally solved, and the operation reliability and safety of the molten salt heat exchange system are greatly improved.

[0050] One specific example provided by the present disclosure includes:

[0051] With reference to Figure 1 The salt water separation and recovery device for dealing with leakage of the molten salt steam generation device 1, comprising a molten salt steam generation device 1, a feed water pipeline 2, a steam pipeline 3, a high-temperature molten salt pipeline 4, a low-temperature molten salt pipeline 5, a first pipeline, a pressure release valve 7, a second pipeline 13, a manual stop valve 9, a third pipeline, a salt water separation reactor 11, a molten salt electric heater (heater 12), a stop valve 14, a emptying pipe 15, a molten salt pump 17, and a molten salt storage tank 19.

[0052] The first pipeline comprises a first pipe section 6, a second pipe section 8, and a third pipe section 10. The third pipeline comprises a fifth pipe section 16 and a sixth pipe section 18.

[0053] The feed water pipeline 3 is connected to the water inlet of the molten salt steam generation device 1, the steam pipeline 3 is connected to the steam outlet of the molten salt steam generation device 1, the high-temperature molten salt pipeline 4 is connected to the salt inlet of the molten salt steam generation device 1, and the low-temperature molten salt pipeline 5 is connected to the salt outlet of the molten salt steam generation device 1.

[0054] One end of the first pipe section 6 is connected to the shell side of the molten salt steam generation device 1, and the other end is connected to the pressure release valve 7. The inlet side of the manual stop valve 9 is connected to the pressure release valve 7 through the second pipe section 8, and the outlet side of the manual stop valve 9 is connected to the salt water separation reactor 11 through the third pipe section 10.

[0055] The molten salt electric heater (heater 12) is installed at the bottom of the tank body 111 of the salt water separation reactor 11. One end of the second pipeline 13 is connected to the top of the tank body 111 of the salt water separation reactor 11, and the other end is connected to the inlet end of the electric stop valve (stop valve 14). The outlet end of the electric stop valve (stop valve 14) is connected to the emptying pipe 15.

[0056] One end of the fifth pipe section 16 is connected to the bottom of the tank body 111 of the salt water separation reactor 11, and the other end is connected to the inlet of the molten salt pump 17. The outlet of the molten salt pump 17 is connected to the molten salt storage tank 19 through the sixth pipe section 18.

[0057] The salt water separation and recovery device for dealing with the leakage of the molten salt steam generating device, when the molten salt steam generating device 1 leaks, the salt side pipe pressure of the first pipe section rises, the pressure is transmitted to the pressure release valve 7 through the first pipe section 6, when the pressure exceeds the preset action pressure of the pressure release valve 7, the pressure release valve 7 is opened, and the electric cut-off valve (cut-off valve 14) installed at the top of the salt water separation reactor 11 is also opened. The high-temperature molten salt steam water mixture in the molten salt steam generating device 1 enters the tank body 111 of the salt water separation reactor 11 in sequence through the first pipe section 6, the pressure release valve 7, the second pipe section 8, the manual cut-off valve 9 and the third pipe section 10 for expansion and pressure relief.

[0058] After the high-temperature molten salt steam water mixture enters the salt water separation reactor 11 for expansion and pressure relief, the manual cut-off valve 9 can be closed to completely isolate the salt water separation reactor 11 from the molten salt steam generating device 1. The molten salt in the tank body 111 of the salt water separation reactor 11 is heated by the molten salt electric heater (heater 12), and the residual water in the molten salt is evaporated. The water vapor in the salt water separation reactor 11 is discharged to the atmosphere in sequence through the second pipe 13 at the top of the tank body 111 of the salt water separation reactor 11, the electric cut-off valve (cut-off valve 14) and the emptying pipe 15.

[0059] After the molten salt in the tank body 111 of the salt water separation reactor 11 is heated and evaporated, when no water vapor is discharged from the emptying pipe 15, the molten salt in the salt water separation reactor 11 can be recovered. At this time, the molten salt pump 17 is put into operation, and the molten salt in the salt water separation reactor 11 is pumped into the molten salt storage tank 19 in sequence through the fifth pipe section 16, the molten salt pump 17 and the sixth pipe section 18 under the action of the molten salt pump 17.

[0060] The invention is aimed at the problems existing in the actual operation of the molten salt steam generating device in the molten salt heat exchange system. The invention is optimized and designed according to the structure characteristics of the molten salt pump installation position and the actual use of the molten salt pump. When the molten salt steam generating device leaks, the salt water medium can be discharged in time to prevent equipment overpressure. The salt water mixture can be conveniently and effectively heated and separated. The water in the molten salt is removed at the same time, and the molten salt is recycled and utilized to avoid waste of molten salt and pollution to the environment caused by leakage of molten salt. The daily maintenance workload is small, the reliability is high, and the practicability is strong.

[0061] The application aims at the problems existing in the actual operation process of the molten salt steam generating device in the molten salt heat exchange system, and researches and designs, so that the molten salt steam generating device leakage problem can realize automatic pressure relief and recovery of brine medium, water in the brine is removed through pressure relief expansion and secondary heating mode, the purpose of purifying the molten salt is achieved, and the molten salt is recycled and reused through the molten salt pump. During the whole leakage accident handling process, the system pressure relief, molten salt recovery, molten salt purification to the final molten salt recycling and utilization can be automatically completed in the closed system through the brine separation and recovery device provided by the application, there is no personnel contact risk, the safety and convenience of the accident handling after the molten salt steam generating device leaks are improved, and the operation reliability of the molten salt steam generating system is improved.

[0062] It can be understood that the above embodiments are only exemplary embodiments adopted for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also considered as the protection scope of the present disclosure.

Claims

1. A saltwater separation and recovery apparatus for responding to a leak of a molten salt steam generating apparatus, characterized by, The application relates to a salt-water separation and recovery device. The first pipeline is connected with a molten salt steam generating device at a first end and connected with a salt-water separation reactor at a second end. The second pipeline is in communication with a steam outlet of the salt-water separation reactor. The pressure release valve is arranged in the first pipeline, and the stop valve is arranged in the second pipeline. When the molten salt steam generating device leaks, the salt side pipeline pressure of the first pipeline rises, and the pressure is transmitted to the pressure release valve through the first pipeline. The salt-water separation reactor comprises a tank body and a heater, the heater is arranged at the bottom of the tank body, and the second pipeline is arranged at the top of the tank body. The application further comprises:

2. The saltwater separation and recovery device for coping with leakage of a molten salt steam generating device according to claim 1, characterized by A manual stop valve is arranged in the first pipeline, and the manual stop valve is located between the pressure release valve and the salt-water separation reactor. The first end of the third pipeline is arranged below the second end of the first pipeline in the height direction of the salt-water separation reactor.

3. The saltwater separation and recovery device for a molten salt steam generation device leak according to claim 1, characterized by, The heater is arranged below the second end of the first pipeline in the height direction of the tank body.

4. The saltwater separation and recovery apparatus for a molten salt steam generating apparatus leak according to claim 1, characterized by, The application further comprises:

5. A fused salt steam generating system characterized by, The molten salt steam generating device and the salt-water separation and recovery device as claimed in claim 1. The molten salt steam generating device comprises a molten salt steam generator, a water supply pipeline, a steam pipeline, a high-temperature molten salt pipeline, a low-temperature molten salt pipeline and a heating pipeline in communication with the molten salt steam generator.

6. A fused salt steam generating system according to claim 5 wherein, The high-temperature molten salt pipeline is arranged at the top of the molten salt steam generator, and the low-temperature molten salt pipeline is arranged at the bottom of the molten salt steam generator.

7. A fused salt steam generating system according to claim 6 wherein, In the flow direction of the molten salt, the molten salt steam generator, the salt-water separation reactor and the molten salt storage tank are arranged in a vertical direction in sequence from high to low.

8. A fused salt steam generating system according to claim 6 wherein, ​

Images