Emergency defoaming device for nuclear power plant

Abstract

The utility model discloses an emergency defoaming device for a nuclear power plant. The emergency defoaming device comprises an execution system, a control system and a power supply system, according to the emergency defoaming device for the nuclear power plant, the main flow pipeline, the branch flow pipeline and the spraying assembly are arranged, so that one solvent tank can be used for filling a plurality of defoaming pools at the same time. Meanwhile, the video monitoring module is utilized, the flow and concentration of defoaming spraying can be automatically adjusted according to the foam amount collected by the video monitoring module, high efficiency is achieved, the operation cost is reduced, the function of intelligent decision control can be achieved through the arrangement of the data processing module, and the purpose of unmanned defoaming is achieved. And a remote control module and a wireless transmission module are also arranged, so that the functions of real-time monitoring and remote operation are realized, and the cost and risk of manual intervention are reduced. In addition, a generator, a photovoltaic panel and an energy storage device are further arranged, traditional mains supply is combined with new energy power supply of wind energy and solar energy, and redundancy and reliability of power supply are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of defoaming dosing systems in nuclear power plants, and in particular to an emergency defoaming device for nuclear power plants. Background Technology

[0002] Existing chemical dosing systems have shortcomings in terms of power supply stability, dosing accuracy, and remote monitoring capabilities. Especially in extreme weather or power outages, manual dosing is required, rendering the existing dosing system unusable. Therefore, it is necessary to develop a new type of intelligent defoaming device based on new energy sources to replace manual emergency defoaming, increase the functional redundancy of the power plant's defoaming system, and ensure the normal operation of defoaming work. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an emergency defoaming device for nuclear power plants.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct an emergency defoaming device for nuclear power plants, which includes an execution system, a control system and a power supply system;

[0005] The execution system includes a defoamer tank, a solvent tank, a main pipeline, at least one branch pipeline, and at least one spraying assembly. The defoamer tank is connected to the solvent tank. The two ends of the main pipeline are respectively connected to the solvent tank and the branch pipeline. The spraying assembly is connected to the branch pipeline and injects defoamer into the defoaming tank.

[0006] The control system includes a data processing module, a video monitoring module, a remote control module, and a wireless transmission module;

[0007] The power supply system includes a generator, photovoltaic panels, and energy storage devices.

[0008] In some embodiments, the generator is a wind turbine, the photovoltaic panel is a solar photovoltaic panel, and the energy storage device is a lead-acid battery energy storage device or a lithium battery energy storage device.

[0009] In some embodiments, a mains pipe control valve is provided on the mains pipe.

[0010] In some embodiments, the solvent tank is connected to the defoamer tank via a liquid extraction pipe.

[0011] In some embodiments, the solvent tank is equipped with a stirring device.

[0012] In some embodiments, the solvent tank is equipped with a level gauge.

[0013] In some embodiments, the diversion line is equipped with a check valve and a pressure gauge;

[0014] The pressure gauge is equipped with a damper.

[0015] In some embodiments, each of the spraying assemblies includes an injector connected to the diversion conduit, a spray pipe connected to the injector, and a water pipe connected to the injector, the water pipe being used to connect to the water system of the nuclear power plant.

[0016] In some embodiments, the injector is a Venturi injector.

[0017] In some embodiments, the spray pipe is equipped with a spray control valve and a flow meter, and the water pipe is equipped with a water meter.

[0018] The following are the beneficial effects of implementing this utility model: This nuclear power plant emergency defoaming device, utilizing the main pipeline, branch pipelines, and spray components, allows a single solvent tank to simultaneously fill multiple defoaming pools. Simultaneously, the video monitoring module automatically adjusts the flow rate and concentration of the defoaming spray based on the foam volume collected by the video monitoring module, achieving both high efficiency and reduced operating costs. The data processing module enables intelligent decision-making and control, achieving unmanned defoaming. Furthermore, a remote control module and a wireless transmission module are included, enabling real-time monitoring and remote operation, reducing the cost and risk of manual intervention, and improving the efficiency and accuracy of emergency response. Additionally, a generator, photovoltaic panels, and energy storage devices are incorporated, combining traditional mains power supply with new energy power sources such as wind and solar power, achieving redundancy and reliability of power supply, especially ensuring the smooth operation of defoaming work in emergency situations. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the nuclear power plant emergency defoaming device in some embodiments of this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the execution system in some embodiments of this utility model. Detailed Implementation

[0022] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0023] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] Reference Figure 1 and Figure 2 This invention relates to an emergency defoaming device for nuclear power plants, as described in some embodiments of the present invention. The device includes an execution system 1, a control system 2, and a power supply system 3. The execution system 1 includes a defoamer tank 11, a solvent tank 12, a main flow pipeline 13, at least one branch flow pipeline 14, and at least one spraying assembly 15. The defoamer tank 11 is connected to the solvent tank 12. The two ends of the main flow pipeline 13 are connected to the solvent tank 12 and the branch flow pipeline 14, respectively. The spraying assembly 15 is connected to the branch flow pipeline 14 and injects defoamer into the defoaming tank. The control system 2 includes a data processing module, a video monitoring module, a remote control module, and a wireless transmission module. The power supply system 3 includes a generator 31, a photovoltaic panel 32, and an energy storage device.

[0025] Specifically, the defoamer tank 11 is used to store defoamer, and the solvent tank 12 is used to receive defoamer from the defoamer tank 11. In this embodiment, there are two of each of the diversion pipe 14 and the spraying assembly 15. The defoamer in the solvent tank 12 can be sprayed into the defoaming pool sequentially through the main pipe 13, the diversion pipe 14, and the spraying assembly 15. In other embodiments, there may be one or more of the diversion pipe 14 and the spraying assembly 15, which can be set according to the number of defoaming pools to be filled, and no specific limitation is made here. In addition, the solvent tank 12 is connected to the defoamer tank 11 through the liquid extraction pipe 16. The solvent tank 12 is also equipped with a stirring device 17 for stirring the defoamer in the solvent tank 12, and a level gauge 18 for monitoring the level of the defoamer in the solvent tank 12.

[0026] Furthermore, the video monitoring module can monitor the amount of foam generated in the defoaming tank and input the result into the data processing module for processing, providing a decision-making basis for the control system 2 to adjust the output defoaming dosage. The data processing module uses a fully digital human-machine interface to dynamically display the dosing process flow and real-time data. It also includes a ledger function to record the dynamic ratio data of defoamer solution and clean water, facilitating management and traceability. In intelligent automatic control mode, the data processing module can collect data and automatically calculate and allocate the flow rates of clean water and defoamer according to preset parameters, achieving precise dosing. Simultaneously, the monitoring results from the video monitoring module can verify and correct the output flow rate and defoamer concentration of the execution system 1. Additionally, the remote control module can be a computer or mobile phone, allowing users to input commands and wirelessly control parameters such as the dosing flow rate and concentration of the execution system 1. In summary, the control system 2 can achieve both manual intervention and intelligent automatic control modes, with unattended operation possible after successful intelligent automatic preset.

[0027] In addition, generator 31 is a wind turbine, photovoltaic panel 32 is a solar photovoltaic panel, and energy storage device is a lead-acid battery energy storage device or a lithium battery energy storage device. The combined design of this power supply system 3 can achieve the purpose of day and night energy complementarity and provide sufficient energy for the emergency defoaming device of the nuclear power plant.

[0028] Understandably, the nuclear power plant's emergency defoaming device, utilizing the main pipeline 13, branch pipelines 14, and spray assembly 15, allows a single solvent tank 12 to simultaneously fill multiple defoaming pools. Simultaneously, the video monitoring module automatically adjusts the flow rate and concentration of the defoaming spray based on the foam volume collected, achieving high efficiency and reduced operating costs. The data processing module enables intelligent decision-making and control, achieving unmanned defoaming. A remote control module and a wireless transmission module are also included, enabling real-time monitoring and remote operation, reducing the cost and risk of manual intervention and improving the efficiency and accuracy of emergency response. Furthermore, a generator 31, photovoltaic panels 32, and energy storage devices are incorporated, combining traditional mains power supply with new energy sources such as wind and solar power, achieving redundancy and reliability in power supply, especially ensuring the smooth operation of defoaming work in emergency situations.

[0029] A mains control valve 131 is installed on the mains pipeline 13 to control the flow of the mains pipeline 13, serving as the first control switch to determine whether the defoamer flows out. A check valve 141 and a pressure gauge 142 are installed on the branch pipeline 14. The check valve 141 prevents backflow of the medium, protects system equipment, and maintains system pressure. The pressure gauge 142 measures the pressure on the branch pipeline 14 and is equipped with a damper. The damper slows down frequent changes in the pressure gauge 142's pointer, protecting it from damage. When the pressure changes too rapidly, the damper absorbs some energy, making the pressure gauge 142 reading more stable.

[0030] Each spray assembly 15 includes an injector 151 connected to a branch line 14, a spray pipe 152 connected to the injector 151, and a water pipe 153 connected to the injector 151. The water pipe 153 is used to connect to the water system of the nuclear power plant. The injector 151 is preferably a Venturi injector, which is a zero-energy booster that can pressurize the defoaming liquid in the pipe to provide pressure for emergency defoaming spraying. The spray pipe 152 is equipped with a spray control valve 1521 and a flow meter 1522, and the water pipe 153 is equipped with a water meter 1531. The spray control valve 1521 can control the amount of defoaming agent sprayed, the flow meter 1522 can measure the flow rate of the spray pipe 152, and the water meter 1531 can measure the water flow rate of the water pipe 153.

[0031] The electrical components and piping of the nuclear power plant's emergency defoaming device are all made of corrosion-resistant materials, ensuring that the device can operate stably in the high-salt, high-humidity environment near the sea.

[0032] This nuclear power plant's emergency defoaming device can reduce downtime, lower operation and maintenance costs, reduce human error, improve overall operational efficiency, and precisely control chemical dosing to reduce chemical waste. It also contributes to environmental protection and sustainable development, enhances the power system's disaster resistance and emergency response capabilities, and increases its resilience to risks.

[0033] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present utility model should fall within the scope of the claims of the present utility model.

Claims

1. A nuclear power plant emergency defoaming device, characterized by, The system comprises an execution system (1), a control system (2) and a power supply system (3); The execution system (1) comprises a defoaming agent barrel (11), a solvent tank (12), a main flow pipeline (13), at least one branch flow pipeline (14) and at least one injection assembly (15), the defoaming agent barrel (11) is connected to the solvent tank (12), two ends of the main flow pipeline (13) are respectively connected to the solvent tank (12) and the branch flow pipeline (14), and the injection assembly (15) is connected to the branch flow pipeline (14) and injects defoaming agent into a defoaming pool. The control system (2) comprises a data processing module, a video monitoring module, a remote control module and a wireless sending module. The power supply system (3) comprises a generator (31), a photovoltaic panel (32) and an energy storage device.

2. The emergency defoaming device for a nuclear power plant according to claim 1, characterized by, The generator (31) is a wind turbine, the photovoltaic panel (32) is a solar photovoltaic panel, and the energy storage device is a lead-acid battery energy storage device or a lithium battery energy storage device.

3. The emergency defoaming device for nuclear power plants according to claim 1, characterized by, A main flow pipeline control valve (131) is arranged on the main flow pipeline (13).

4. The emergency defoaming device for nuclear power plants according to claim 1, characterized by The solvent tank (12) is connected to the defoaming agent barrel (11) through a liquid suction pipe (16).

5. The emergency defoaming device for nuclear power plants according to claim 1, characterized by A stirring device (17) is arranged on the solvent tank (12).

6. The emergency defoaming device for a nuclear power plant according to claim 1, characterized by, A liquid level meter (18) is arranged on the solvent tank (12).

7. The emergency defoaming device for nuclear power plants according to claim 1, characterized by A check valve (141) and a pressure gauge (142) are arranged on the branch flow pipeline (14). A damper is arranged on the pressure gauge (142).

8. The emergency defoaming device for nuclear power plants according to claim 1, characterized by Each injection assembly (15) comprises an injector (151) connected to the branch flow pipeline (14), a spray pipeline (152) connected to the injector (151) and a water pipeline (153) connected to the injector (151), and the water pipeline (153) is used to be connected to a water system of a nuclear power plant.

9. The emergency defoaming device for a nuclear power plant according to claim 8, characterized by, The injector (151) is a Venturi injector.

10. The emergency defoaming device for a nuclear power plant according to claim 8, characterized by, A spray control valve (1521) and a flow meter (1522) are arranged on the spray pipeline (152), and a water meter (1531) is arranged on the water pipeline (153).

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