Saline water separation and recovery device for coping with leakage of fused salt steam generation device

Abstract

The embodiment of the invention provides a salt-water separation and recovery device for coping with leakage of a fused salt steam generation device. The salt-water separation and recovery device comprises a first pipeline, a salt-water separation reactor, a second pipeline, a pressure relief valve and a stop valve, the first end of the first pipeline is connected with the fused salt steam generation 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 relief valve is arranged on the first pipeline; the stop valve is arranged on the second pipeline. According to the invention, the salt water mixture after leakage of the fused salt steam generating device is quickly recovered, and the high-pressure salt water mixture is recovered into the salt water separation reactor for capacity expansion and pressure relief and separation, so that the problem of damage to overpressure equipment after leakage of the fused salt steam generating device is solved; and the operation reliability and safety of the fused salt steam generating device are greatly improved.

Description

Technical Field

[0001] The embodiments of the present disclosure belong to the technical field of molten salt steam generating devices of molten salt energy storage systems, and specifically relate to a brine separation and recovery device for coping with leakage of molten salt steam generating devices. Background Art

[0002] Molten salt is a molten body formed after the salt is melted. It has the characteristics of high conventional operating temperature, wide temperature range, large specific heat capacity, and high freezing point. It is an important heat transfer medium used in molten salt solar thermal power plants, molten salt energy storage systems, and some chemical fields. The molten salt steam generator is a commonly used heat exchange equipment in the molten salt system, and plays an irreplaceable role in the operation of the molten salt system. The internal structure of the molten salt steam generator is complex, and it is difficult to repair after a leakage failure. When a molten salt steam generator leaks, a large amount of steam and water will enter the molten salt system, causing the molten salt system to overpressure and endangering the safety of the equipment. If the system is not shut down in time to discharge the brine mixture, steam and water may enter the molten salt storage tank, causing the tank to overpressure, affecting the safety of the tank.

[0003] In the existing molten salt heat storage system, when a molten salt steam generator leaks, the leaked molten salt is generally discharged into the salt drainage pit to prevent equipment damage and prevent the accident from expanding. The molten salt is cleaned up after it cools down. The molten salt discharged into the salt drainage pit will be polluted by the outside world and cannot be recycled, which will cause molten salt waste and pose major safety and environmental risks.

[0004] Therefore, how to solve the above problems has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art and provide a brine separation and recovery device for coping with leakage of a molten salt steam generating device.

[0006] A first aspect of an embodiment of the present disclosure provides a brine separation and recovery device for coping with leakage of a molten salt steam generating device, comprising: a first pipeline, a brine separation reactor, a second pipeline, a pressure release valve and a stop valve;

[0007] The first end of the first pipeline is connected to the molten salt steam generator, and the second end is connected to the brine separation reactor; the second pipeline is connected to the steam outlet of the brine separation reactor; the pressure release valve is arranged on the first pipeline; the stop valve is arranged on the second pipeline;

[0008] Among them, 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 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 opened in conjunction, so that the high-temperature molten salt steam-water mixture in the molten salt steam generating device enters the brine separation reactor through the first pipeline for pressure relief.

[0009] Optionally, it also includes: a manual stop valve, which is arranged on the first pipeline, and the manual stop valve is located between the pressure release valve and the brine separation reactor.

[0010] Optionally, it also includes: a molten salt storage tank, a molten salt pump and a third pipeline; the first end of the third pipeline is connected to the brine separation reactor, and the second end is connected to the molten salt storage tank; the molten salt pump is arranged in the third pipeline.

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

[0012] Optionally, the brine 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] According to a second aspect of an embodiment of the present disclosure, a molten salt steam generating system is provided, comprising: a molten salt steam generating device, and a brine separation and recovery device as described in claim 3 or 4.

[0015] Optionally, the molten salt steam generating device includes a molten salt steam generator, and a water supply pipe, a steam pipe, a high-temperature molten salt pipe, a low-temperature molten salt pipe and a heating pipe connected to the molten salt steam generator, and the heating pipe is connected to the water supply pipe and the steam pipe.

[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, in the flow direction of the molten salt, the molten salt steam generator, the brine separation reactor and the molten salt storage tank are arranged in descending order in the vertical direction.

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

[0019] In the present invention, the brine mixture after leakage of the molten salt steam generating device is quickly recovered, and the high-pressure brine mixture is recovered into the brine separation reactor for expansion and pressure relief and separation, thereby solving the problem of damage to the overpressure equipment after leakage of the molten salt steam generating device and greatly improving the operating reliability and safety of the molten salt steam generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a brine separation and recovery device connected to an embodiment of the present disclosure; wherein, the connection relationship between the molten salt steam generating device and the brine separation and recovery device is illustrated.

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

[0022] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions and drawings of the following examples are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, 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 "multiple" is more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. 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, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the error tolerance range. "Parallel" is not parallel in the strict sense, but within the error tolerance range.

[0024] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0025] like Figure 1 As shown, a brine separation and recovery device for dealing with leakage of a molten salt steam generating device, the brine separation and recovery device includes a first pipeline, a brine separation reactor 11, a second pipeline 13, a pressure release valve 7 and a stop valve 14.

[0026] The first end of the first pipeline is connected to the molten salt steam generator 1, and the second end is connected to the brine separation reactor 11. The second pipeline 13 is connected to the steam outlet of the brine separation reactor 11. The pressure release valve 7 is arranged on the first pipeline, and the stop valve 14 is arranged on the second pipeline 13.

[0027] When the molten salt steam generator 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 opened in conjunction, so that the high-temperature molten salt steam-water mixture in the molten salt steam generator 1 enters the brine separation reactor 11 through the first pipeline for pressure relief. The brine separation reactor 11 is used to separate the high-temperature molten salt steam-water mixture.

[0028] In the present disclosure, the brine mixture after leakage of the molten salt steam generating device 1 is quickly recovered, and the high-pressure brine mixture is recovered into the brine separation reactor 11 for expansion and pressure relief and separation, thereby solving the problem of damage to the overpressure equipment after leakage of the molten salt steam generating device 1 and greatly improving the operating 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 brine separation and recovery device further includes a manual stop valve 9 , which is disposed in the first pipeline and is located between the pressure release valve 7 and the brine 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 brine separation reactor can be cut off by closing the manual stop valve 9 to prevent safety problems caused by molten salt leakage.

[0032] On the other hand, when the brine separation reactor needs to be maintained or inspected, the manual stop valve 9 can be closed to isolate the brine separation reactor, making it easier to perform maintenance work without affecting other parts of the system.

[0033] Thirdly, the existence of the manual stop valve 9 increases the flexibility of operation, and the flow of molten salt can be adjusted at any time as needed, which helps to optimize the operating state of the system.

[0034] Fourthly, if the pressure release valve 7 is activated, the manual stop valve 9 can be used to cut off the flow of molten salt, preventing excessive molten salt from entering the brine separation reactor and 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, and the second end is connected to the molten salt storage tank 19. The molten salt pump 17 is arranged in the third pipeline.

[0036] In some embodiments, 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 11. This design can ensure that the molten salt can flow smoothly under the action of gravity, reduce additional energy consumption, and help 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 salt water separation reactor 11 includes a tank body and a heater 12, wherein the heater 12 is disposed at the bottom of the tank body, and the second pipeline 13 is disposed at the top of the tank body. The bottom of the heater 12 is selected to ensure that heat can be effectively transferred to the molten salt, and it also helps to promote the upward evaporation of water. The second pipeline 13 is disposed at the top of the tank body, so that the water vapor rises after heating and is discharged through the second pipeline 13. The heater 12 is a molten salt electric heater.

[0038] In some embodiments, the heater 12 is disposed below the second end of the first pipeline along the height direction of the tank body. With this design, the processed molten salt (most of the water may have been removed) can be led out from a lower position of the tank body through the third pipeline, thereby effectively utilizing gravity and thermodynamic principles 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 generating system, comprising: a molten salt steam generating device 1, and the brine separation and recovery device described above.

[0040] In some embodiments, the molten salt steam generating device 1 includes a molten salt steam generator, and a water supply pipe 2, a steam pipe 3, a high-temperature molten salt pipe 4, a low-temperature molten salt pipe 5 and a heating pipe connected to the molten salt steam generator, and the heating pipe connects the water supply pipe 2 and the steam pipe 3.

[0041] The high-temperature molten salt enters the molten salt steam generator from the high-temperature molten salt pipe 4, and transfers heat to the water through heat exchange with the internal water or feed 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 pipe 5. This part of the molten salt has released most of the heat and the temperature has dropped. The feed water enters the heating pipe through the feed water pipe 2, is heated in the heating pipe, and then enters the molten salt steam generator to continue heating until it becomes steam. The steam is discharged from the molten salt steam generator through the steam pipe 3 and can be used for power generation or other purposes in industrial processes.

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

[0043] The high-temperature molten salt pipeline 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 evenly distributed in the whole device and is conducive to the effective transfer of heat during the heat exchange process.

[0044] The low-temperature molten salt pipeline 5 is arranged at the bottom of the molten salt steam generator, so that the molten salt with a lowered temperature after heat exchange is discharged from the bottom, which can utilize gravity to help the molten salt flow smoothly and help reduce 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 descending order in the vertical direction. With this design, gravity can be used to assist the flow of molten salt, reduce pumping requirements, and optimize the thermodynamic efficiency of the entire system. Further, this design can improve the reliability and efficiency of the system, and may help simplify the system structure and reduce operating costs.

[0046] The brine separation and recovery device for dealing with the leakage of the molten salt steam generator 1 described in the present invention includes a brine mixture collection part, a brine mixture separation part and a brine mixture recovery and storage part. The brine mixture collection part includes a connecting pipe section, a pressure release valve 7 and a manual stop valve 9, the connecting pipe section is connected to the shell side of the molten salt steam generator 1, the pressure release valve 7 and the manual stop valve 9 are installed on the pipeline, and the other end of the pipe section is connected to the brine separation reactor 11. The brine mixture separation part includes a brine separation reactor 11, a molten salt electric heater (heater 12), an electric stop valve (stop valve 14), a connecting pipe section and an emptying pipe 15, the molten salt electric heater (heater 12) is installed at the bottom of the brine separation reactor 11, and the connecting pipe section, the electric stop valve (stop valve 14), and the emptying pipe 15 are sequentially connected and installed at the top of the brine separation reactor 11. The brine mixture recovery and storage part includes a connecting pipe section, a molten salt pump 17 and a molten salt storage tank 19. The molten salt pump 17 is installed and arranged between the brine separation reactor 11 and the molten salt storage tank 19. The pump inlet side is connected to the brine separation reactor 11 through a pipe section, and the pump outlet side is connected to the molten salt storage tank 19 through a pipe section.

[0047] The brine mixture collection part of the present invention is connected to the molten salt steam generator 1 through a pipeline, and a pressure relief valve 7 and a manual stop valve 9 are installed on the pipe section, wherein the pressure relief valve 7 can be opened automatically according to a preset pressure setting value, or opened by remote operation. When a leakage accident occurs, high-temperature and high-pressure steam and water will enter the molten salt side to cause overpressure in the molten salt system. When the pressure reaches the preset pressure setting value of the pressure relief valve 7, the pressure relief valve 7 will automatically open to recover the medium in the molten salt steam generator 1. The manual stop valve 9 is used as a manual hard isolation point during equipment maintenance to ensure that the brine separation and recovery device is reliably isolated from the molten salt steam generator 1 under maintenance.

[0048] The brine separation reactor 11 in the brine mixture separation part described in the present invention is used to collect the brine mixture, expand the capacity and reduce the pressure of the brine mixture. After the expansion and pressure reduction, most of the steam and water will be evaporated and separated, and discharged to the atmosphere through the electric stop valve (stop valve 14) and the exhaust pipe 15 on the top of the brine separation reactor 11. The remaining residual moisture is secondary heated and separated by the molten salt electric heater (heater 12) installed at the bottom of the brine separation reactor 11, thereby completely removing the moisture in the molten salt and restoring the quality of the molten salt.

[0049] The salt water separation and recovery device for coping with the leakage of the molten salt steam generator 1 described in the present invention plays the role of overpressure protection on the one hand, and can automatically release pressure to collect the salt water mixture after the molten salt steam generator 1 leaks. On the other hand, the discharged salt water mixture can be separated for a second time to restore the quality of the molten salt, and the molten salt can be recycled for a second time, while also eliminating the safety risks such as overpressure and high temperature after the leakage of the molten salt steam generator 1. The problem of handling the leakage of the molten salt steam generator 1 and the recovery of molten salt is fundamentally solved, and the operating reliability and safety of the molten salt heat exchange system are greatly improved.

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

[0051] refer to Figure 1 The present invention discloses a brine separation and recovery device for coping with leakage of a molten salt steam generating device, comprising a molten salt steam generating device 1, a water supply 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 brine separation reactor 11, a molten salt electric heater (heater 12), a stop valve 14, an exhaust pipe 15, a molten salt pump 17 and a molten salt storage tank 19.

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

[0053] The water supply pipe 3 is connected to the water inlet of the molten salt steam generator 1, the steam pipe 3 is connected to the steam outlet of the molten salt steam generator 1, the high-temperature molten salt pipe 4 is connected to the salt inlet of the salt steam generator 1, and the low-temperature molten salt pipe 5 is connected to the salt outlet of the salt steam generator 1.

[0054] One end of the first pipe section 6 is connected to the shell side of the molten salt steam generating device 1, and the other end is connected to the pressure relief valve 7. The inlet side of the manual stop valve 9 is connected to the pressure relief valve 7 through the second pipe section 8, and the outlet side of the manual stop valve 9 is connected to the brine 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 brine separation reactor 11, one end of the second pipeline 13 is connected to the top of the tank body 111 of the brine separation reactor 11, and the other end is connected to the inlet end of the electric stop valve (stop valve 14), and the outlet end of the electric stop valve (stop valve 14) is connected to the drain pipe 15.

[0056] One end of the fifth pipe section 16 is connected to the bottom of the tank body 111 of the brine 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] During the operation of the brine separation and recovery device for responding to the leakage of the molten salt steam generator, when the molten salt steam generator 1 leaks, the pressure of the salt side pipeline of the first pipe section rises, and the pressure is transmitted to the pressure relief valve 7 through the first pipe section 6. When the pressure exceeds the preset action pressure of the pressure relief valve 7, the pressure relief valve 7 opens, and the electric stop valve (stop valve 14) installed on the top of the brine separation reactor 11 is opened simultaneously. The high-temperature molten salt steam-water mixture in the molten salt steam generator 1 enters the tank 111 of the brine separation reactor 11 through the first pipe section 6, the pressure relief valve 7, the second pipe section 8, the manual stop valve 9 and the third pipe section 10 in sequence to expand and relieve pressure.

[0058] After the high-temperature molten salt steam-water mixture enters the brine separation reactor 11 for expansion and pressure relief, the manual stop valve 9 can be closed to completely isolate the brine separation reactor 11 from the molten salt steam generating device 1. The molten salt electric heater (heater 12) is put into operation to heat the molten salt in the tank 111 of the brine separation reactor 11 to evaporate the residual water in the molten salt. The water vapor in the brine separation reactor 11 is discharged to the atmosphere through the second pipeline 13 at the top of the tank 111 of the brine separation reactor 11, the electric stop valve (stop valve 14) and the exhaust pipe 15 in sequence.

[0059] After the molten salt in the tank body 111 of the brine separation reactor 11 is heated to evaporate water, and when no water vapor comes out of the exhaust pipe 15, the molten salt in the brine separation reactor 11 can be recovered. At this time, the molten salt pump 17 is put into operation. Under the action of the molten salt pump 17, the molten salt in the brine separation reactor 11 is pumped through the fifth pipe section 16, the molten salt pump 17, and the sixth pipe section 18 in sequence to the molten salt storage tank 19 for storage.

[0060] This invention is designed to solve the problems existing in the actual operation of the molten salt steam generator in the molten salt heat exchange system. This invention optimizes the design based on the structural characteristics of the installation part of the molten salt pump and the actual use of the molten salt pump. When the molten salt steam generator leaks, the brine medium can be discharged in time to prevent the equipment from overpressure. The brine mixture can be heated and separated conveniently and effectively. While removing the water in the molten salt, the molten salt can be recycled to avoid the waste of molten salt and prevent the pollution to the environment caused by the leakage and discharge of molten salt. The daily maintenance workload is small, the reliability is high and the practicability is strong.

[0061] This invention is designed to address the problems existing in the actual operation of the molten salt steam generator in the molten salt heat exchange system. It can realize automatic pressure relief and recovery of the brine medium to deal with the leakage problem of the molten salt steam generator. The water in the brine is removed by pressure relief and expansion and secondary heating to achieve the purpose of purifying the molten salt. The molten salt is recycled and reused by a molten salt pump. During the entire leakage accident handling process, system pressure relief, molten salt recovery, molten salt purification and final molten salt recycling can all be automatically completed in a closed system by the brine separation and recovery device proposed in the present invention, without the risk of human contact, thereby improving the safety and convenience of accident handling after the molten salt steam generator leaks and improving the operational reliability of the molten salt steam generation system.

[0062] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A brine separation and recovery device for dealing with leakage of a molten salt steam generating device, It is characterized in that include: A first pipeline, a brine separation reactor, a second pipeline, a pressure release valve and a stop valve; The first end of the first pipeline is connected to the molten salt steam generator, and the second end is connected to the brine separation reactor; The second pipeline is connected to the steam outlet of the brine separation reactor; the pressure release valve is arranged on the first pipeline; the stop valve is arranged on the second pipeline; Among them, 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 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 opened in conjunction, so that the high-temperature molten salt steam-water mixture in the molten salt steam generating device enters the brine separation reactor through the first pipeline for pressure relief.

2. A brine separation and recovery device for dealing with leakage of a molten salt steam generating device according to claim 1, It is characterized in that Also includes: A manual stop valve is provided in the first pipeline, and the manual stop valve is located between the pressure release valve and the brine separation reactor.

3. A brine separation and recovery device for dealing with leakage of a molten salt steam generating device according to claim 1, It is characterized in that Also includes: A molten salt storage tank, a molten salt pump and a third pipeline; the first end of the third pipeline is connected to the brine separation reactor, and the second end is connected to the molten salt storage tank; the molten salt pump is arranged in the third pipeline.

4. A brine separation and recovery device for dealing with leakage of a molten salt steam generating device according to claim 3, It is characterized in that Along the height direction of the brine separation reactor, the first end of the third pipeline is arranged below the second end of the first pipeline.

5. A brine separation and recovery device for dealing with leakage of a molten salt steam generating device according to claim 1, It is characterized in that The brine separation reactor comprises a tank body and a heater, wherein the heater is arranged at the bottom of the tank body, and the second pipeline is arranged at the top of the tank body.

6. A brine separation and recovery device for dealing with leakage of a molten salt steam generating device according to claim 5, It is characterized in that Along the height direction of the tank body, the heater is arranged below the second end of the first pipeline.

7. A molten salt steam generating system, It is characterized in that include: A molten salt steam generating device, and a brine separation and recovery device as claimed in claim 3 or 4.

8. A molten salt steam generation system according to claim 7, It is characterized in that The molten salt steam generating device comprises a molten salt steam generator, and a water supply pipe, a steam pipe, a high-temperature molten salt pipe, a low-temperature molten salt pipe and a heating pipe connected to the molten salt steam generator, wherein the heating pipe is connected to the water supply pipe and the steam pipe.

9. A molten salt steam generating system according to claim 8, It is characterized in that 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.

10. A molten salt steam generation system according to claim 8, It is characterized in that In the flow direction of the molten salt, the molten salt steam generator, the brine separation reactor and the molten salt storage tank are arranged in descending order in the vertical direction.

Images