Nuclear reactor plant structure

Abstract

The invention relates to the technical field of nuclear power, and discloses a nuclear reactor plant structure. Through the design of the natural air inlet corridor and the natural air inlet in the natural air inlet structure, natural air in the external environment can be guided to flow into the reactor building shell, the natural air can be efficiently utilized without depending on energy, dependence on ventilation equipment is reduced, and when emergency situations such as power interruption happen, the natural air can be effectively utilized. And ventilation can still be provided for the interior of the plant interior and exterior body, and the reliability of the plant can be enhanced. Meanwhile, regular inspection and maintenance of ventilation equipment can be omitted, so that the maintenance cost is reduced. In addition, due to the fact that natural ventilation is achieved, reduction of energy consumption is facilitated, and emission of greenhouse gas is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of nuclear power, and in particular to a nuclear reactor building structure. Background Art

[0002] In the field of nuclear power generation, the safety and stability of nuclear reactor buildings are crucial. Nuclear reactors generate a lot of heat during operation, and effective heat dissipation and cooling must be carried out to prevent excessive temperatures from causing equipment damage or safety accidents.

[0003] Existing active cooling systems rely on external power and mechanical equipment to promote the circulation of cooling media, such as circulating water systems and forced ventilation. Under normal circumstances, the temperature in the plant can be efficiently controlled. However, when power is interrupted or equipment fails, its cooling capacity will be greatly reduced, thereby increasing nuclear safety risks. Summary of the invention

[0004] In view of this, the present invention provides a nuclear reactor building structure to solve the problem that when the existing building structure relies on electrical energy and mechanical equipment to achieve heat dissipation, the cooling capacity is greatly reduced due to power outages or equipment failures.

[0005] Specifically, the nuclear reactor building structure of the present invention includes a reactor building outer shell, a natural air intake structure and a reactor building inner shell; the natural air intake structure is installed at the reactor building outer shell, and the natural air intake structure is provided with a natural air intake corridor arranged facing the wind and a natural air intake port connecting the interior of the reactor building outer shell with the natural air intake corridor, so as to guide the natural wind to flow into the interior of the reactor building outer shell; the reactor building inner shell is installed inside the reactor building outer shell.

[0006] Beneficial effects: Through the design of the natural air inlet corridor and natural air inlet in the natural air inlet structure, the natural wind in the external environment can be guided to flow into the reactor building shell, and the natural wind can be efficiently utilized without relying on energy, and the dependence on ventilation equipment can be reduced. In the event of an emergency such as a power outage, ventilation can still be provided for the interior of the plant body inside and outside, which helps to enhance the reliability of the plant. At the same time, regular inspection and maintenance of ventilation equipment can be omitted, thereby reducing maintenance costs. In addition, the realization of natural ventilation helps to reduce energy consumption and greenhouse gas emissions.

[0007] In an optional embodiment, the natural air intake corridor is a steady wind corridor; wherein, in the direction extending from the external environment toward the interior of the reactor building shell, the air supply cross-sectional area of ​​the air supply channel for natural wind flow inside the natural air intake corridor gradually decreases.

[0008] Beneficial effects: By setting the natural air inlet corridor in a form where the air supply cross-sectional area gradually decreases, it helps to stabilize the wind speed, reduce the direct impact of external environmental changes such as sudden changes in wind direction and wind speed fluctuations on the ventilation effect inside the reactor building shell, and guide the natural wind to enter the external building body evenly and orderly, reducing air flow turbulence and dead corners, thereby improving the ventilation effect. At the same time, compared with the traditional mechanical ventilation system, this natural ventilation method does not require complex control systems and power equipment, thereby reducing the complexity and maintenance costs of the system.

[0009] In an optional embodiment, the nuclear reactor building structure also includes a sealing plate, which is installed between the outer wall of the reactor building inner shell and the inner wall of the reactor building outer shell, and the sealing plate is close to the bottom of the top wall of the air inlet of the reactor building outer shell for natural wind to enter the interior, so as to separate the space of the reactor building outer shell below the sealing plate and the space above the sealing plate.

[0010] Beneficial effects: By setting up the sealing plate, the interior of the reactor building shell is divided into two separate spaces, upper and lower, which reduces the impact of the external environment on the natural wind, allowing the natural wind to smoothly enter the required area, reducing the degree of turbulence inside the reactor building shell, reducing the energy loss caused by air flow turbulence, and optimizing the flow path of the natural wind, which helps to improve ventilation efficiency.

[0011] In an optional embodiment, the sealing plate is provided with a first drain outlet, and the height of the end of the sealing plate away from the first drain outlet is higher than the height of the end of the sealing plate close to the first drain outlet; the nuclear reactor building structure also includes a water diversion pipe, the inlet of the water diversion pipe is connected to the first drain outlet, and the outlet of the water diversion pipe is located in the drainage area outside the reactor building shell.

[0012] Beneficial effect: By providing a first drain port on the sealing plate, and making the height of the end of the sealing plate away from the first drain port higher than the height of the end of the sealing plate close to the first drain port, it is possible to drain the accumulated water, effectively guide the accumulated water to the first drain port for discharge, avoid the accumulated water from being retained at the sealing plate, and prevent the accumulated water from causing potential damage to the sealing plate, the reactor building shell, and the reactor building inner shell, such as corrosion and leakage, thereby extending the service life of the sealing plate, the reactor building shell, and the reactor building inner shell. At the same time, by timely draining the accumulated water, it is ensured that the inside of the reactor building shell is dry and clean, providing a safe working environment for the staff, and preventing the staff from slipping or falling due to accumulated water.

[0013] In an optional embodiment, the nuclear reactor building structure also includes a flow distribution plate, which is installed between the outer wall of the reactor building inner shell and the inner wall of the reactor building outer shell, and the flow distribution plate is located above the air inlet of the reactor building outer shell for natural wind to enter the interior thereof, and the flow distribution plate is provided with a plurality of ventilation holes, among which the aperture of the ventilation hole close to the natural air inlet is smaller than the aperture of the ventilation hole far from the natural air inlet.

[0014] Beneficial effect: By providing a flow distribution plate and arranging the flow distribution plate above the air inlet of the reactor building shell for natural wind to enter the interior thereof, the natural wind entering the reactor building shell through the air inlet is flow-distributed during the rising process. Since the multiple ventilation holes on the flow distribution plate are arranged in a form in which the aperture of the ventilation holes close to the natural air inlet is smaller than the aperture of the ventilation holes far from the natural air inlet, the flow through each ventilation hole can be consistent, and the natural wind can be evenly distributed on the outer wall of the inner shell of the reactor building, thereby achieving uniform heat exchange, avoiding local overheating, reducing dependence on equipment, and helping to reduce the operating cost and carbon emissions of nuclear power plants.

[0015] In an optional embodiment, the nuclear reactor building structure also includes an air outlet structure, which is arranged on the top of the reactor building shell, and the air outlet structure is provided with a natural air outlet connecting the interior of the reactor building shell with the external environment and a natural air outlet corridor for guiding the natural wind after heat exchange to the outside.

[0016] Beneficial effects: After heat exchange, the temperature of natural wind increases and its density decreases, causing it to gradually rise. By adding an outlet structure on the top of the reactor building shell that is connected to the inside of the reactor building shell and the external environment, the natural wind can flow to the external environment when it flows to the outlet structure, that is, the outlet structure is arranged using the natural wind heating characteristics, reducing the dependence of natural wind flow on equipment, which helps to reduce the operating costs and carbon emissions of nuclear power plants. At the same time, during the flow of natural wind, natural ventilation can be achieved inside the reactor building shell, which helps to optimize the environmental conditions inside the reactor building shell, improve air quality, reduce odor and humidity, and provide a comfortable and healthy working environment for staff.

[0017] In an optional embodiment, the nuclear reactor building structure also includes a water diversion plate, which is installed on the inner wall of the reactor building shell. The water diversion plate diverts liquid water generated during the natural wind heat exchange process to the drainage area outside the reactor building shell through a water diversion pipe.

[0018] Beneficial effects: By installing a water guide plate on the inner wall of the reactor building shell, a guide is provided for the liquid water generated by the natural wind after heat exchange. Since the water guide plate is connected to the water guide pipe, the generated liquid water can enter the water guide pipe and flow to the external drainage area through the guidance of the water guide pipe, so as to achieve efficient drainage and avoid the accumulation of liquid water inside the reactor building shell, thereby reducing the potential safety hazards such as moisture, corrosion or slipping caused by water accumulation. At the same time, by centrally discharging the generated liquid water, maintenance and cleaning work are more convenient. In addition, by timely discharging the liquid water generated during the heat exchange process, the liquid water is prevented from flowing to the natural air inlet, thereby avoiding affecting the air intake.

[0019] In an optional embodiment, the height of the water diverter plate presents a gradually decreasing trend in the extension direction from the inner wall of the reactor building outer shell toward the reactor building inner shell, so that the water diverter plate is arranged inclined downward; wherein, the end of the water diverter plate away from the inner wall of the reactor building outer shell is arranged in a horizontal direction between the inner wall of the reactor building outer shell and the first drain outlet.

[0020] Beneficial effects: By setting the water guide plate in a form of "gradually decreasing height in the extension direction from the inner wall of the reactor building shell toward the inner shell of the reactor building", liquid water can flow naturally along the water guide plate under the action of its gravity, and "the end of the water guide plate away from the inner wall of the reactor building shell is arranged horizontally between the inner wall of the reactor building shell and the first drain port", so that condensed water will flow to the sealing plate under the action of gravity after leaving the water guide plate, and flow to the first drain port for smooth discharge due to the structure of the sealing plate itself, and the effective drainage of liquid water can be achieved without the use of additional power or equipment, simplifying the drainage method and reducing energy consumption. At the same time, because the water guide plate is inclined downward, water accumulation is avoided, corrosion, mildew and other problems caused by water accumulation are reduced, and the internal environment of the reactor building shell is kept clean and hygienic.

[0021] In an optional embodiment, the water diversion plate is arranged in a ring shape; and in the extension direction from the inner wall of the reactor building shell toward the inner shell of the reactor building, the height of the water diversion plate presents a trend of first decreasing and then increasing, or the height presents a trend of gradually increasing, so that the water diversion plate and the inner wall of the reactor building shell form an annular water collecting chamber; a second drain outlet is provided at the lowest point of the water diversion plate, and the second drain outlet diverts the liquid water generated during the natural wind heat exchange process to the drainage area outside the reactor building shell through a water diversion pipe.

[0022] Beneficial effect: By setting the water guide plate in the form of "in the extension direction from the inner wall of the reactor building shell toward the inner shell of the reactor building, the height presents a trend of first decreasing and then increasing or the height presents a trend of gradually increasing", the liquid water generated by heat exchange can be guided, and by forming an annular water collection chamber with the water guide plate and the inner wall of the reactor building shell, the liquid water generated during the heat exchange process can be efficiently collected. At this time, since the second drain port is provided at the lowest point of the water guide plate, and the second drain port is connected to the water guide pipe, the liquid water accumulated in the annular water collection chamber can be discharged smoothly, thereby improving the drainage efficiency. In addition, due to the setting of the water guide plate, when the natural wind flows to the water guide plate, it will not affect the water collection inside the annular water collection chamber, thereby reducing the interference between the accumulated water and the natural wind.

[0023] In an optional embodiment, the nuclear reactor building structure further includes a bottom plate, which is installed at the bottom of the reactor building shell.

[0024] Beneficial Effects: By installing the bottom plate at the bottom of the reactor building shell, it is supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the specific implementation modes of the present invention, the drawings required for use in the description of the specific implementation modes will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic top view of a nuclear reactor building structure provided by an embodiment of the present invention;

[0027] Figure 2 A schematic front view of a nuclear reactor building structure provided by an embodiment of the present invention;

[0028] Figure 3 A partial enlarged schematic diagram of a natural air inlet of a nuclear reactor building structure provided in an embodiment of the present invention;

[0029] Figure 4 Another schematic front view of a water diversion plate in a nuclear reactor building structure provided by an embodiment of the present invention;

[0030] Figure 5 Another schematic front view of a water diversion plate in a nuclear reactor building structure provided in an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Reactor building shell;

[0033] 2. Natural air intake structure; 21. Natural air intake corridor; 22. Natural air intake;

[0034] 3. Reactor building inner shell;

[0035] 4. Sealing plate; 41. First drain port;

[0036] 5. Flow distribution plate;

[0037] 6. Air outlet structure; 61. Natural air outlet; 62. Natural air outlet corridor;

[0038] 7. Water diversion plate; 71. Second drainage outlet;

[0039] 8. Bottom plate;

[0040] K, dominant wind direction of natural wind; L, flow direction of natural wind. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0042] In the description of the present application, it should be understood that the terms "upper", "lower", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0044] In the description of this application, it should 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the field of nuclear power generation, the safety and stability of nuclear reactor buildings are crucial. Nuclear reactors generate a lot of heat during operation, and effective heat dissipation and cooling must be carried out to prevent excessive temperatures from causing equipment damage or safety accidents.

[0046] Traditional ventilation and cooling systems often rely on external power and mechanical equipment to promote the circulation of cooling media, such as circulating water systems and forced ventilation. Under normal circumstances, the temperature in the plant can be efficiently controlled. However, in the event of power outages or equipment failures, its cooling capacity will be greatly reduced, thereby increasing nuclear safety risks.

[0047] To this end, the present application utilizes natural wind, does not require the setting of external electricity or mechanical equipment, and utilizes the principle of natural convection generated by the temperature difference between cold and hot air to form a continuous air flow path from the natural air inlet to the natural air outlet, thereby achieving continuous ventilation and cooling without any mechanical driving force, thereby enhancing the stability and reliability of the system in emergency situations such as power outages.

[0048] Combine the following Figures 1 to 5 , describing an embodiment of the present invention.

[0049] According to an embodiment of the present invention, a nuclear reactor building structure is provided, such as Figure 1 and Figure 2 As shown, the nuclear reactor building structure includes a reactor building outer shell 1 , a natural air inlet structure 2 and a reactor building inner shell 3 .

[0050] Among them, the natural air intake structure 2 is installed at the reactor building shell 1, and the natural air intake structure 2 is provided with a natural air intake corridor 21 arranged facing the wind and a natural air inlet 22 connecting the interior of the reactor building shell 1 with the natural air intake corridor 21, so as to guide the natural wind to flow into the reactor building shell 1; the reactor building inner shell 3 is installed inside the reactor building shell 1.

[0051] With such an arrangement, through the design of the natural air inlet corridor 21 and the natural air inlet 22 in the natural air inlet structure, the natural wind in the external environment can be guided to flow into the interior of the reactor building shell 1, and efficient use of natural wind can be achieved without relying on energy, and the dependence on ventilation equipment can be reduced. In the event of an emergency such as a power outage, ventilation can still be provided for the interior of the external body of the building, which helps to enhance the reliability of the building.

[0052] At the same time, regular inspection and maintenance of ventilation equipment can be omitted, thus reducing maintenance costs. In addition, since natural ventilation is achieved, it helps to reduce energy consumption and greenhouse gas emissions.

[0053] It can be explained that there are multiple natural air intake structures 2 , and the multiple natural air intake structures 2 are arranged at intervals on the outer wall of the reactor building shell 1 .

[0054] Preferably, a plurality of natural air inlet structures 2 are arranged in an array in the circumferential direction and / or the axial direction around the axis of the reactor building shell 1 .

[0055] In one embodiment, Figure 1 and Figure 2 As shown, the natural air inlet corridor 21 is a steady wind corridor; wherein, in the direction extending from the external environment toward the inside of the reactor building shell 1, the air supply cross-sectional area of ​​the air supply channel for natural wind flow inside the natural air inlet corridor 21 gradually decreases.

[0056] Such a configuration, by setting the natural air inlet corridor 21 in a form in which the air supply cross-sectional area gradually decreases, helps to stabilize the wind speed, reduce the direct impact of external environmental changes such as sudden changes in wind direction and wind speed fluctuations on the ventilation effect inside the reactor building shell 1, and guide the natural wind to enter the external building body evenly and orderly, reduce air flow turbulence and dead corners, thereby improving the ventilation effect.

[0057] At the same time, compared with traditional mechanical ventilation systems, this natural ventilation method does not require complex control systems and power equipment, thereby reducing system complexity and maintenance costs.

[0058] It can be explained that the reactor building inner shell 3 is a device used for nuclear reaction.

[0059] It can be explained that, in a top view, the natural air inlet corridor 21 presents a cone-shaped structure as a whole, so as to gather more natural wind for the reactor building shell 1.

[0060] It can be explained that the opening of the natural air inlet structure faces the dominant wind direction of the natural wind, such as Figure 1 As shown in the K direction, it is convenient to collect natural wind.

[0061] It can be explained that setting the natural air inlet 22 at a certain height can reduce the friction of the ground on the flow of natural wind, improve the phenomenon that the natural wind speed is slowed down due to the friction of the ground, thereby utilizing a higher wind speed and improving ventilation efficiency.

[0062] It can be explained that the natural air inlet corridor is equipped with a filtering device, such as a filter, to remove particles such as dust and pollutants entering the reactor building shell 1, thereby improving the air quality.

[0063] It can be explained that, in this embodiment, the horizontal section of the inner wall of the reactor building shell 1 and the horizontal section of the outer wall of the reactor building inner shell 3 are both circular. At this time, the inner wall of the reactor building shell 1 and the outer wall of the reactor building inner shell 3 are enclosed to form a sleeve-shaped chamber.

[0064] In one embodiment, Figure 1 and Figure 2 As shown, the nuclear reactor building structure also includes a sealing plate 4, which is installed between the outer wall of the reactor building inner shell 3 and the inner wall of the reactor building outer shell 1, and the sealing plate 4 is close to the bottom of the top wall of the reactor building outer shell 1 for natural wind to enter the interior of the air inlet, so as to separate the space below the sealing plate 4 and the space above the sealing plate 4 of the reactor building outer shell 1.

[0065] In this way, through the setting of the sealing plate 4, the interior of the reactor building shell 1 is divided into two separated spaces, upper and lower, thereby reducing the impact of the external environment on the natural wind, allowing the natural wind to smoothly enter the required area, reducing the degree of turbulence remaining inside the reactor building shell 1, reducing the energy loss caused by air flow turbulence, and optimizing the flow path of the natural wind, which helps to improve ventilation efficiency.

[0066] Preferably, the sealing plate 4 is arranged in a height range of 2 m to 4 m.

[0067] Preferably, the sealing plate 4 is made of materials such as lead composite material or boronized polyethylene.

[0068] In one embodiment, Figures 1 to 3 As shown, the sealing plate 4 is provided with a first drain port 41, and the height of the end of the sealing plate 4 away from the first drain port 41 is higher than the height of the end of the sealing plate 4 close to the first drain port 41; the nuclear reactor building structure also includes a water diversion pipe, the inlet of the water diversion pipe is connected to the first drain port 41, and the outlet of the water diversion pipe is located in the drainage area outside the reactor building shell 1.

[0069] In this way, by providing a first drain port 41 on the sealing plate 4 and making the height of the end of the sealing plate 4 away from the first drain port 41 higher than the height of the end of the sealing plate 4 close to the first drain port 41, it is possible to drain the accumulated water, effectively guide the accumulated water to the first drain port 41 for discharge, avoid the accumulated water from being retained in the sealing plate 4, and prevent the accumulated water from causing potential damage to the sealing plate 4, the reactor building shell 1, and the reactor building inner shell 3, such as corrosion and leakage, thereby extending the service life of the sealing plate 4, the reactor building shell 1, and the reactor building inner shell 3.

[0070] At the same time, by draining the accumulated water in time, the interior of the reactor building shell 1 is ensured to be dry and clean, providing a safe working environment for the staff to prevent the staff from slipping or falling due to the accumulated water.

[0071] In one embodiment, Figure 1 and Figure 2 As shown, the nuclear reactor building structure also includes a flow distribution plate 5, which is installed between the outer wall of the reactor building inner shell 3 and the inner wall of the reactor building outer shell 1, and the flow distribution plate 5 is located above the air inlet of the reactor building outer shell 1 for natural wind to enter the interior thereof, and the flow distribution plate 5 is provided with a plurality of ventilation holes, among which the aperture of the ventilation holes close to the natural air inlet 22 is smaller than the aperture of the ventilation holes far from the natural air inlet 22.

[0072] In this way, by providing a flow distribution plate 5, and arranging the flow distribution plate 5 above the air inlet of the reactor building shell 1 for natural wind to enter its interior, the natural wind entering the reactor building shell 1 through the air inlet is flow-distributed during the rising process. Since the multiple ventilation holes on the flow distribution plate 5 are arranged in a form in which the aperture of the ventilation holes close to the natural air inlet 22 is smaller than the aperture of the ventilation holes far from the natural air inlet 22, the flow through each ventilation hole can be consistent, and the natural wind can be evenly distributed on the outer wall of the reactor building inner shell 3, thereby achieving uniform heat exchange, avoiding local overheating, reducing dependence on equipment, and helping to reduce the operating cost and carbon emissions of nuclear power plants.

[0073] Preferably, the flow distribution plate 5 is arranged in a height range of 4 m to 6 m.

[0074] Preferably, the flow distribution plate 5 is made of lead composite material or boronized polyethylene material.

[0075] It can be explained that the setting of the sealing plate 4 and the flow distribution plate 5 supports the inner wall of the reactor building outer shell 1 and the outer wall of the reactor building inner shell 3, plays the role of annular reinforcement ribs and ribs, improves the overall stability and durability, and makes the structure of the entire building more stable.

[0076] In one embodiment, Figure 1 and Figure 2 As shown, the nuclear reactor building structure also includes an air outlet structure 6, which is arranged on the top of the reactor building shell 1, and the air outlet structure 6 is provided with a natural air outlet 61 connecting the interior of the reactor building shell 1 with the external environment and a natural air outlet corridor 62 for guiding the natural wind after heat exchange to the outside.

[0077] With such arrangement, after heat exchange, the temperature of the natural wind increases and the density decreases, causing it to gradually rise. By adding an air outlet structure 6 on the top of the reactor building shell 1 that is connected to the inside of the reactor building shell 1 and to the external environment, the natural wind can flow to the external environment when it flows to the air outlet structure 6. That is, the air outlet structure 6 is arranged using the warming characteristics of natural wind, which reduces the dependence of natural wind flow on equipment, thereby helping to reduce the operating costs and carbon emissions of nuclear power plants.

[0078] At the same time, during the flow of natural wind, natural ventilation can be achieved inside the reactor building shell 1, which helps to optimize the environmental conditions inside the reactor building shell 1, improve air quality, reduce odor and humidity, and provide a comfortable and healthy working environment for staff.

[0079] In one embodiment, Figures 1 to 3 As shown, the nuclear reactor building structure also includes a water diversion plate 7, which is installed on the inner wall of the reactor building shell 1. The water diversion plate 7 diverts liquid water generated during the natural wind heat exchange process to the external drainage area of ​​the reactor building shell 1 through a water diversion pipe.

[0080] In this arrangement, by installing a water guide plate 7 on the inner wall of the reactor building shell 1, a guide is provided for the liquid water generated after the natural wind passes through the heat exchange. Since the water guide plate 7 is connected to the water guide pipe, the generated liquid water can enter the water guide pipe and flow to the external drainage area through the guidance of the water guide pipe, thereby achieving efficient drainage and avoiding the accumulation of liquid water inside the reactor building shell 1, thereby reducing safety hazards such as moisture, corrosion or slipping caused by water accumulation.

[0081] At the same time, centralized discharge of the generated liquid water makes maintenance and cleaning more convenient.

[0082] It can be explained that there are multiple water guide plates 7 , and the multiple water guide plates 7 are arranged at intervals on the inner wall of the reactor building shell 1 .

[0083] Preferably, a plurality of water guide plates 7 are arranged in an array in the circumferential direction and / or the axial direction around the axis of the reactor building shell 1 .

[0084] Preferably, a plurality of water guide plates 7 are arranged between the flow distribution plate 5 and the sealing plate 4 along the axial direction of the reactor building shell 1 .

[0085] In other optional embodiments, at least one of the plurality of water guide plates 7 is disposed along the axial direction of the reactor building shell 1 on a side of the flow distribution plate 5 away from the sealing plate 4 .

[0086] In one embodiment, Figures 1 to 3 As shown, the height of the water guide plate 7 shows a gradually decreasing trend in the extension direction from the inner wall of the reactor building shell 1 toward the reactor building inner shell 3, so that the water guide plate 7 is arranged tilted downward; wherein, the end of the water guide plate 7 away from the inner wall of the reactor building shell 1 is arranged in the horizontal direction between the inner wall of the reactor building shell 1 and the first drain port 41.

[0087] In this way, by setting the water guide plate 7 in a form of "gradually decreasing height in the extension direction from the inner wall of the reactor building shell 1 toward the reactor building inner shell 3", liquid water can flow naturally along the water guide plate 7 and under the action of its gravity, and "the end of the water guide plate 7 away from the inner wall of the reactor building shell 1 is arranged in the horizontal direction between the inner wall of the reactor building shell 1 and the first drain port 41", so that after the condensed water leaves the water guide plate 7, it will flow to the sealing plate 4 under the action of gravity, and due to the effect of the structure of the sealing plate 4 itself, it will flow to the first drain port 41 and be discharged smoothly, so that effective drainage of liquid water can be achieved without using additional power or equipment, simplifying the drainage method and reducing energy consumption.

[0088] At the same time, since the water guide plate 7 is inclined downward, water accumulation is avoided, and corrosion, mildew and other problems caused by water accumulation are reduced, which helps to keep the internal environment of the reactor building shell 1 clean and hygienic.

[0089] In one embodiment, Figures 1 to 3 As shown, the water guide plate 7 is arranged in an annular shape; and the water guide plate 7 is extended from the inner wall of the reactor building shell 1 toward the inner shell 3 of the reactor building, and the height is as shown in FIG. Figure 4 As shown, it shows a trend of first falling and then rising, or as Figure 5 The height shown shows a gradually rising trend, so that the water guide plate 7 and the inner wall of the reactor building shell 1 form an annular water collecting chamber; a second drain outlet 71 is provided at the lowest point of the water guide plate 7, and the second drain outlet 71 drains the liquid water generated during the natural wind heat exchange process to the external drainage area of ​​the reactor building shell 1 through a water guide pipe.

[0090] In this way, by setting the water guide plate 7 to "show a trend of first decreasing and then increasing in height or a trend of gradually increasing in height in the extension direction from the inner wall of the reactor building shell 1 toward the inner shell 3 of the reactor building", the liquid water generated by the heat exchange can be guided, and by forming an annular water collection chamber with the water guide plate 7 and the inner wall of the reactor building shell 1, the liquid water generated in the heat exchange process can be efficiently collected. At this time, since the second drain port 71 is provided at the lowest point of the water guide plate 7, and the second drain port 71 is connected to the water guide pipe, the liquid water accumulated in the annular water collection chamber can be discharged smoothly, thereby improving the drainage efficiency. In addition, due to the setting of the water guide plate 7, when the natural wind flows to the water guide plate 7, it will not affect the water collection inside the annular water collection chamber, thereby reducing the interference between the accumulated water and the natural wind.

[0091] In one embodiment, Figure 1 and Figure 2 As shown, the nuclear reactor building structure further includes a bottom plate 8 , which is installed at the bottom of the reactor building shell 1 .

[0092] In this configuration, the bottom plate 8 is installed at the bottom of the reactor building shell 1 to support it.

[0093] It can be explained that the bottom plate 8 is made of reinforced concrete, which provides a solid support foundation for the nuclear reactor building structure and ensures the stability and safety of the nuclear reaction process.

[0094] The nuclear reactor building structure used in the above-mentioned embodiment introduces more natural wind (cold air) into the reactor building shell 1 by setting a natural air inlet structure 2. The natural wind passes through the natural air inlet corridor 21 and enters the interior of the reactor building shell 1 from the natural air inlet 22, and then is evenly distributed through the flow distribution plate 5 to ensure that the natural wind evenly exchanges heat with the reactor building inner shell 3. When the natural wind contacts the reactor building inner shell 3 heated by the heat generated by the nuclear reaction, the temperature rises, forming hot air, and its density decreases, which will gradually rise until it moves to the natural air outlet corridor 62 and is discharged from the natural air outlet 61. A continuous flow path is formed to achieve continuous cooling of the reactor building inner shell 3.

[0095] The natural wind flow direction inside the reactor building shell 1 is: Figure 2 L in the middle points to the direction of the arrow.

[0096] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A nuclear reactor building structure, characterized in that: include: Reactor building shell (1); A natural air intake structure (2), the natural air intake structure (2) being installed at the reactor building shell (1), the natural air intake structure (2) being provided with a natural air intake corridor (21) arranged facing the wind and a natural air intake port (22) connecting the interior of the reactor building shell (1) with the natural air intake corridor (21), so as to guide the natural wind to flow into the interior of the reactor building shell (1); A reactor building inner shell (3), wherein the reactor building inner shell (3) is installed inside the reactor building outer shell (1).

2. The nuclear reactor building structure according to claim 1, characterized in that: The natural air inlet corridor (21) is a stable wind corridor; Wherein, in the direction extending from the external environment toward the interior of the reactor building shell (1), the air supply cross-sectional area of ​​the air supply channel for natural wind flow inside the natural air intake corridor (21) gradually decreases.

3. The nuclear reactor building structure according to claim 2, characterized in that: Also includes: A sealing plate (4), the sealing plate (4) being installed between the outer wall of the reactor building inner shell (3) and the inner wall of the reactor building outer shell (1), and the sealing plate (4) being located below the top wall of the reactor building outer shell (1) where natural wind enters the reactor building outer shell (1), so as to separate the space of the reactor building outer shell (1) below the sealing plate (4) and the space above the sealing plate (4).

4. The nuclear reactor building structure according to claim 3, characterized in that: The sealing plate (4) is provided with a first drain port (41), and the height of the end of the sealing plate (4) away from the first drain port (41) is higher than the height of the end of the sealing plate (4) close to the first drain port (41); The nuclear reactor building structure further comprises a water diversion pipe, the inlet of which is in communication with the first drain port (41), and the outlet of which is located in a drainage area outside the reactor building shell (1).

5. The nuclear reactor building structure according to any one of claims 1 to 4, characterized in that: Also includes: A flow distribution plate (5), the flow distribution plate (5) being installed between the outer wall of the reactor building inner shell (3) and the inner wall of the reactor building outer shell (1), and the flow distribution plate (5) being located above an air inlet of the reactor building outer shell (1) for natural wind to enter the interior thereof, the flow distribution plate (5) being provided with a plurality of ventilation holes, wherein the aperture of the ventilation hole close to the natural air inlet (22) is smaller than the aperture of the ventilation hole far from the natural air inlet (22).

6. The nuclear reactor building structure according to any one of claims 1 to 4, characterized in that: Also includes: An air outlet structure (6), the air outlet structure (6) being arranged on the top of the reactor building shell (1), and the air outlet structure (6) being provided with a natural air outlet (61) for connecting the interior of the reactor building shell (1) with the external environment, and a natural air outlet corridor (62) for guiding the natural air flow after heat exchange to the outside.

7. The nuclear reactor building structure according to any one of claims 1 to 4, characterized in that: Also includes: A water diversion plate (7), the water diversion plate (7) being installed on the inner wall of the reactor building shell (1), the water diversion plate (7) diverting liquid water generated during the natural wind heat exchange process to a drainage area outside the reactor building shell (1) through a water diversion pipe.

8. The nuclear reactor building structure according to claim 7, characterized in that: The height of the water guide plate (7) in the extending direction from the inner wall of the reactor building outer shell (1) toward the reactor building inner shell (3) presents a trend of gradually decreasing, so that the water guide plate (7) is arranged to be inclined downward; Wherein, the end of the water guide plate (7) away from the inner wall of the reactor building shell (1) is arranged in the horizontal direction between the inner wall of the reactor building shell (1) and the first water outlet (41).

9. The nuclear reactor building structure according to claim 7, characterized in that: The water guide plate (7) is arranged in an annular shape; and in the extension direction from the inner wall of the reactor building shell (1) toward the reactor building inner shell (3), the height of the water guide plate (7) presents a trend of first decreasing and then increasing, or a trend of gradually increasing, so that the water guide plate (7) and the inner wall of the reactor building shell (1) form an annular water collecting chamber; A second drainage port (71) is provided at the lowest point of the water guide plate (7), and the second drainage port (71) guides liquid water generated during the natural wind heat exchange process to a drainage area outside the reactor building shell (1) through a water guide pipe.

10. The nuclear reactor building structure according to any one of claims 1 to 4, characterized in that: Also includes: A bottom plate (8), the bottom plate (8) being installed at the bottom of the reactor building shell (1).

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