Oil supply units and power plants

Abstract

This utility model discloses an oil supply device and a power plant. The oil supply device includes an oil tank protection chamber and an oil tank disposed inside the oil tank protection chamber, which is independently located outside the power plant. The oil tank protection chamber has an external interface, is located below the ground surface, and its top is flush with the ground surface. The external interface is located at the top of the oil tank protection chamber. Alternatively, the oil tank protection chamber has a first area above the ground surface and a second area below the ground surface, with the external interface located at the top or side of the first area. In this utility model, when a fire occurs in the oil tank protection chamber, external rescue measures can be quickly applied to the oil tank protection chamber, achieving rapid rescue. This solves the defect of not being able to quickly rescue after a fire and avoids the phenomenon of collapse caused by prolonged exposure of the civil structure to flames.

Description

Technical Field

[0001] This utility model relates to the field of power facility technology, and in particular to oil supply devices and power plants. Background Technology

[0002] Backup generator sets in power plants are devices used as emergency backup power sources after the power plant loses its daily power supply. For example, emergency diesel generator sets in nuclear power plants are used as emergency power sources in the event of an accident where the nuclear power plant loses its external power supply. To ensure the continuous operation of emergency diesel generator sets under such conditions, they need to provide fuel for at least 7 days of full-load operation.

[0003] To ensure a stable fuel supply to generator sets, standby generator sets typically use a submerged system, where fuel continuously fills the generator set's fuel tank or other components and overflows. Therefore, the overflowing fuel needs to be returned to the fuel tank. Furthermore, the standby generator set's fuel tank differs from the fuel tank used in daily operations; it does not require frequent refueling or maintenance. Based on this, existing plant designs typically place the fuel tank below the generator set and bury it deep underground, creating a sufficient height difference between the generator set and the fuel tank to allow the overflowing fuel to flow back into the tank under its own weight.

[0004] However, the design of burying the oil tanks deep underground and below the generator set has the following drawbacks: the distance between the oil tanks and the ground surface is relatively far, making it difficult for surface firefighters to quickly carry out external rescue after a fire breaks out; when the automatic fire extinguishing measures configured in the oil tank room are unable to extinguish the fire, the flames will continue to scorch the soil and building structure above the oil tanks, causing it to collapse, and the generator set above the oil tanks is extremely vulnerable to damage under high temperature. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by this utility model is to propose an oil supply device and a power plant to solve the problem that oil tanks are located deep underground, making rescue difficult.

[0006] The technical solution adopted by this utility model to solve its technical problem is an oil supply device. The oil supply device is used to supply oil to a standby generator set, which is used for emergency power generation in a power plant. The power plant has a power generation room located above ground, and the standby generator set is located in the power generation room. The oil supply device includes an oil tank protection chamber and an oil tank located in the oil tank protection chamber. The oil tank can be used to receive oil overflowing from the standby generator set. The oil tank protection chamber is independently located outside the power generation room.

[0007] The oil tank protective chamber is equipped with fire-fighting components, which include a fire-fighting passage that can communicate with the outside, and the fire-fighting passage has an external interface for adding fire-fighting agents;

[0008] Wherein, the oil tank protective chamber is located below the ground surface, the top surface of the oil tank protective chamber is flush with the ground surface, and the external interface is located on the top surface of the oil tank protective chamber; or, the oil tank protective chamber has a first region and a second region distributed along the height direction, the first region is above the ground surface, the second region is below the ground surface, and the external interface is located on the top or side surface of the first region.

[0009] This utility model has at least the following beneficial effects:

[0010] The top of the oil tank protective chamber is either above or flush with the ground surface, and the external interfaces of the fire-fighting components are also located above or below the ground surface. In the event of a fire, external personnel can quickly add fire-fighting agents such as fire-fighting water and foam through these external interfaces, preventing the fire from continuing to burn even after the fire-fighting agents inside the protective chamber have been exhausted. Simultaneously, exposing at least the top surface of the oil tank protective chamber to the ground surface allows external rescue measures to quickly reach the protective chamber without needing to penetrate underground, reducing rescue time and enabling rapid rescue. This solves the shortcomings of existing technologies where the oil tank protective chamber is located deep underground, hindering rapid rescue efforts after a fire and preventing the collapse of the civil structure due to prolonged exposure to flames.

[0011] Furthermore, the power plant also has a first plant building located above ground, the power generation room is located inside the first plant building, and the oil tank protection room is independently located outside the first plant building.

[0012] Furthermore, the height of the external interface is between 0 and 1.8m.

[0013] Furthermore, the power plant also has a second plant located below the ground surface, and the first plant and the second plant are distributed along the height direction;

[0014] The first plant and / or the second plant are provided with a first side wall at their edges, and the oil tank protection room has a second side wall. The second side wall is adjacent to the first side wall, or the second side wall is adjacent to the first side wall, and there is a gap between the second side wall and the first side wall.

[0015] Furthermore, the power plant also has a second plant located below the ground surface, and the first plant and the second plant are distributed along the height direction;

[0016] The first plant and / or the second plant are provided with a first side wall at their edges. The oil tank protection room has a second side wall opposite to the first side wall and a plurality of third side walls disposed between the first side wall and the second side wall. The two ends of the third side wall are respectively connected to the first side wall and the second side wall. The first side wall, the second side wall and the plurality of third side walls together form a space for placing the oil tank.

[0017] Furthermore, it also includes:

[0018] An oil collection tank is used to collect oil that overflows from the standby generator set;

[0019] The oil return channel is connected at one end to the oil collection tank and at the other end to the oil tank. An oil pump is installed on the oil return channel.

[0020] Furthermore, the power plant also has a first plant building located above ground, the power generation room is located inside the first plant building, and a control room is also provided inside the first plant building;

[0021] The oil tank protection room is equipped with a monitoring module and a detection and alarm module. The monitoring module includes a camera to capture real-time images of the oil tank protection room and transmit them to the control room. The detection and alarm module includes a combustible gas detector to monitor the concentration of combustible gas in the oil tank protection room and an alarm to send an alarm signal to the control room when the concentration of combustible gas in the oil tank protection room exceeds a preset value.

[0022] Furthermore, the combustible gas concentration has a first preset value and a second preset value, and the second preset value is greater than the first preset value; when the combustible gas concentration in the oil tank protection chamber is greater than the first preset value and less than the second preset value, the alarm emits a first-level alarm signal; when the combustible gas concentration in the oil tank protection chamber is greater than the second preset value, the alarm emits a second-level alarm signal.

[0023] Furthermore, the oil tank protective chamber is also equipped with a fire door, which is located on the top or side of the oil tank protective chamber and is above or flush with the ground surface.

[0024] Furthermore, the oil tank protective chamber is equipped with a first escape passage and a second escape passage that can communicate with the outside world, and the first escape passage and the second escape passage are located at opposite ends of the oil tank protective chamber.

[0025] Furthermore, the power plant also has a first plant building located above ground, the power generation room is located inside the first plant building, and the oil tank protection room is independently located outside the first plant building;

[0026] The first escape route is connected to the interior space of the first factory building, and the second escape route is connected to the outdoor environment.

[0027] Furthermore, a power plant was also disclosed, including an oil supply unit, at least one standby generator set, and a first plant located above ground, wherein the standby generator set is located inside the first plant and the oil tank protection room is located outside the first plant.

[0028] Furthermore, the power plant also has a second plant located below the ground surface, and the first plant and the second plant are arranged along the height direction;

[0029] The oil tank protection chamber has a first area and a second area distributed along the height direction. The first area is located outside the first plant and adjacent to the first plant. The second area is located outside the second plant and adjacent to the second plant. The bottom surface of the second area is flush with the bottom surface of the second plant.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0032] Figure 1 This is a cross-sectional view of a power plant in an embodiment of this utility model;

[0033] Figure 2 This is a cross-sectional view of the protective chamber of the oil tank along one direction in an embodiment of this utility model;

[0034] Figure 3 This is a cross-sectional view of the oil tank protective chamber in another direction in an embodiment of this utility model;

[0035] Figure 4 This is a schematic diagram of the return channel, oil collection tank, and oil pump in an embodiment of this utility model;

[0036] Figure label:

[0037] 100. Power plant; 110. First plant building; 111. Power generation room; 112. Standby generator set; 120. Second plant building; 200. Oil tank protection room; 201. First area; 202. Second area; 210. Oil tank; 220. First escape route; 230. Second escape route; 300. Return channel; 310. Oil collection tank; 320. Oil pump. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0041] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0042] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Please refer to Figure 1 This embodiment discloses an oil supply device for supplying oil to a standby generator set 112. The standby generator set 112 is used for emergency power generation in a power plant 100. The power plant 100 has a power generation room 111 located above the ground, and the standby generator set 112 is located inside the power generation room 111. The oil supply device includes an oil tank protection chamber 200 and an oil tank 210 located inside the oil tank protection chamber 200. The oil tank 210 can be used to receive oil overflowing from the standby generator set 112. The oil tank protection chamber 200 is independently located outside the power generation room 111.

[0044] The oil tank protective chamber 200 is equipped with fire-fighting components, which include a fire-fighting passage that can communicate with the outside world and has an external interface for adding fire-fighting agents;

[0045] The oil tank protection chamber 200 is located below the ground surface, with its top surface flush with the ground surface and its external interface located on the top surface of the oil tank protection chamber 200; or, the oil tank protection chamber 200 has a first region 201 and a second region 202 distributed along the height direction, with the first region 201 located above the ground surface and the second region 202 located below the ground surface, and its external interface located on the top or side surface of the first region 201.

[0046] First, it should be noted that the oil tank 210 of the standby generator set 112 in power plant 100 uses a submerged oil supply system. The standby generator set 112 will continuously overflow oil, which needs to be returned to the oil tank 210. Therefore, the oil tank 210 of the standby generator set 112 in power plant 100 differs from other oil tanks 210. It was designed to be buried relatively deep below the surface (typically 10 meters below the surface), creating a sufficient height difference between the standby generator set 112 and the oil tank 210, allowing the overflowing oil from the standby generator set 112 to flow back into the oil tank 210 under its own gravity. This design has drawbacks, such as difficulty in quickly extinguishing a fire in the oil tank 210, and the potential for the civil structure to collapse due to prolonged exposure to heat.

[0047] Based on the aforementioned deficiencies of the existing technology, this design moves the oil tank 210 and the oil tank protective chamber 200, originally designed to be underground (within the second plant 120), upwards. Specifically, the oil tank protective chamber 200 is entirely located below the ground surface, with its top flush with the ground surface; alternatively, a portion of the oil tank protective chamber 200 is located above the ground surface, while another portion is located below. That is, in either of these designs, the top of the oil tank protective chamber 200 is either above or flush with the ground surface, and the external interfaces of the fire-fighting components are located either above or below the ground surface. In the event of a fire, external personnel can quickly add fire-fighting agents such as fire-fighting water and foam through the external interfaces, preventing the fire-fighting agents inside the oil tank protective chamber 200 from being exhausted and the fire from continuing to scorch the flames. Simultaneously, by exposing at least the top surface of the oil tank protective chamber 200 to or above the ground surface, external rescue measures can quickly reach the oil tank protective chamber 200 without needing to penetrate underground, reducing rescue time and enabling rapid rescue. This solves the defect in existing technologies where the oil tank protective chamber 200 is located deep underground, hindering rapid rescue after a fire and preventing the collapse caused by prolonged exposure to flames on the civil structure. Preferably, the height of the external interface is between 0 and 1.8m.

[0048] Furthermore, the fire suppression system also includes sprinklers located within the tank protection chamber 200 for spraying fire extinguishing agents. The tank protection chamber 200 is also equipped with flame detectors and smoke detectors, which automatically or manually activate the fire suppression system to quickly extinguish the fire upon detection of any abnormality.

[0049] Please refer to Figure 1 In this embodiment, the tank protection chamber 200 has a first region 201 and a second region 202 distributed along the height direction. The first region 201 is located above the ground surface, and the second region 202 is located below the ground surface. In some other embodiments, the tank protection chamber 200 is located below the ground surface, and the top surface of the tank protection chamber 200 is flush with the ground surface.

[0050] In this embodiment, a portion of the oil tank protective chamber 200 is located below the ground surface, while the other portion is located above the ground surface. Compared to a scheme where the entire oil tank protective chamber 200 is located below the ground surface, this reduces the depth to which the oil tank protective chamber 200 is buried, thereby reducing excavation costs. The height of the first region 201 is equal to, less than, or greater than the depth of the second region 202. Preferably, in this embodiment, the height of the first region 201 is set to 4m, and the depth of the second region 202 is set to 5m.

[0051] Furthermore, the power plant 100 also has a first plant building 110 located above ground, with a power generation room 111 inside the first plant building 110, and an oil tank protection room 200 independently located outside the first plant building 110. Specifically, by placing the oil tank protection room 200 outside the first plant building 110, in the event of a fire, rescue equipment such as fire trucks do not need to enter the first plant area for rescue operations; they can directly operate on the oil tank protection room 200, making rescue operations more convenient and faster.

[0052] Please refer to Figure 2 In this embodiment, the power plant 100 also has a second plant 120 located below the ground surface, and the second plant 120 and the first plant 110 are arranged along the height direction; the edges of the first plant 110 and / or the second plant 120 are provided with first side walls, the oil tank protection room 200 has a second side wall, the second side wall is adjacent to the first side wall, or the second side wall is adjacent to the first side wall, and there is a gap between the second side wall and the first side wall.

[0053] Specifically, the first side wall is the vertical outer wall of the power plant 100. An oil tank protection chamber 200 is installed outside the first side wall. The second side wall of the oil tank protection chamber 200 can be connected to the first side wall, so that the first and second side walls form an integral structure and share the load. Alternatively, a gap can be provided between the second and first side walls. This gap creates a protective distance between the oil tank protection chamber 200 and the first plant 110 / second plant 120, preventing damage to the equipment in the first plant 110 and / or second plant 120 from flames or high temperatures in the event of a fire in the oil tank 210. Preferably, a fireproof partition can be installed at the gap between the first and second side walls.

[0054] It should also be noted that the ground surface described in this embodiment does not specifically refer to the plane at the height of the horizon, but can be understood as the plane at the height of the ground where the power plant 100 is located, that is, Figure 2 The plane at the level where the 0-meter mark is located.

[0055] In some other embodiments, the power plant 100 also has a second plant 120 located below the ground surface, and the second plant 120 is arranged along the height direction with the first plant 110; the edges of the first plant 110 and / or the second plant 120 are provided with first side walls, the oil tank protection chamber 200 has a second side wall disposed opposite to the first side wall, and a plurality of third side walls disposed between the first side wall and the second side wall, the two ends of the third side wall being connected to the first side wall and the second side wall respectively, and the first side wall, the second side wall and the plurality of third side walls together form a space for placing the oil tank 210.

[0056] The first outer wall of the first plant 110 and / or the second plant 120 can be used as part of the wall of the oil tank protection room 200. Specifically, the two ends of the second outer wall are respectively connected to the first outer wall and the third outer wall, so that the oil tank 210 is enclosed between the first outer wall, the second outer wall and the third outer wall. Of course, the first outer wall, the second outer wall and the third outer wall are all vertical walls, and building structures need to be set at their top and bottom respectively.

[0057] It should be noted that the oil supply device in this case is applicable to the standby generator set 112 in the power plant 100, such as the emergency diesel engine in a nuclear power plant. It uses a flooding oil supply system and requires collecting the overflowing oil from the standby generator set 112 and returning it to the oil tank 210. In the original design, a sufficient height difference was required between the oil tank 210 and the standby generator set 112 so that the overflowing oil could flow back to the tank under its own gravity. In this case, the height of the oil tank 210 is raised, and there is no sufficient height difference between the oil tank 210 and the standby generator set 112 for the overflowing oil to flow back under its own gravity.

[0058] Please refer to Figure 4Based on the above, this embodiment further includes: an oil collection tank 310 for collecting oil overflowing from the standby generator set 112; and an oil return channel, one end of which is connected to the oil collection tank 310 and the other end of which is connected to the oil tank 210, with an oil pump 320 installed on the oil return channel. Specifically, the oil overflowing from the standby generator set 112 is temporarily collected in the oil collection tank 310, and the oil pump 320 pumps the oil in the oil collection tank 310 back to the oil tank 210 through the oil return channel, thereby realizing the return flow of the oil overflowing from the standby generator set 112.

[0059] In this embodiment, the first plant 110 is equipped with a control room; a monitoring module and a detection and alarm module are installed in the oil tank protection room 200. The monitoring module includes a camera to capture real-time images of the oil tank protection room 200 and transmit them to the control room; the detection and alarm module includes a combustible gas detector to monitor the concentration of combustible gas in the oil tank protection room 200; and an alarm to send an alarm signal to the control room when the concentration of combustible gas in the oil tank protection room 200 exceeds a preset value.

[0060] Specifically, the control room is equipped with a display screen, and cameras can capture real-time images of the oil tank protection chamber 200, which are then transmitted to the control room and displayed on the screen. This allows monitoring personnel to constantly monitor the oil tank protection chamber 200 and detect any abnormalities such as fuel leaks immediately. The cameras focus on monitoring areas with a high risk of oil leakage, such as the flange connections and valve seals of the oil tank 210. Additionally, the oil tank protection chamber 200 is equipped with a combustible gas detector. When the detected concentration of combustible gas exceeds a preset value, an alarm signal is issued, including both audible and visual alarms.

[0061] In this embodiment, the combustible gas concentration has a first preset value and a second preset value, and the second preset value is greater than the first preset value. When the combustible gas concentration in the oil tank protection chamber 200 is greater than the first preset value but less than the second preset value, the alarm issues a first-level alarm signal; when the combustible gas concentration in the oil tank protection chamber 200 is greater than the second preset value, the alarm issues a second-level alarm signal. For example, in a nuclear power plant, the standby generator set 112 uses a diesel engine, and the fuel is diesel. The combustible gas concentration can be specifically defined as the percentage of diesel vapor in a unit space. The first preset value of the diesel vapor concentration can be set to 25%, and a first-level alarm signal is issued when the diesel vapor concentration exceeds 25%; the second preset value is set to 50%, and a second-level alarm signal is issued when the diesel vapor concentration exceeds 50%. Since the density of diesel vapor is greater than that of air, the diesel vapor concentration near the bottom of the oil tank protection chamber 200 is greater than that near the top. Therefore, the combustible gas detector can be placed near the bottom of the oil tank protection chamber 200 to detect the maximum concentration within the oil tank protection chamber 200, avoiding the phenomenon where no alarm is triggered but the concentration in some locations exceeds the preset value.

[0062] As mentioned above, primary and secondary alarm signals can be distinguished by different signal types and / or signal strengths. For example, secondary alarm signals include audible and visual alarms, while primary alarm signals may use either audible or visual alarms, or the volume / brightness of a secondary alarm signal may be stronger than that of a primary alarm signal.

[0063] Please refer to Figure 3 In this embodiment, the oil tank protection chamber 200 is provided with a first escape passage 220 that communicates with the first plant 110 and a second escape passage 230 that communicates with the external space of the first plant 110. Preferably, the first escape passage 220 and the second escape passage 230 are respectively located at opposite ends of the oil tank protection chamber 200.

[0064] Specifically, a second escape route 230 is added to the oil tank protection room 200, and the second escape route 230 and the first escape route 220 are located at opposite ends of the oil tank protection room 200, so that escape personnel can choose either escape route nearby and escape quickly.

[0065] Please refer to Figure 1-2 This embodiment also discloses a power plant 100, including an oil supply device, at least one standby generator set 112 and a first plant 110 located above the ground. The standby generator set 112 is located inside the first plant 110, and the oil tank protection room 200 is located outside the first plant 110.

[0066] In this embodiment, the power plant 100 also has a second plant 120 located below the ground surface, and the second plant 120 and the first plant 110 are arranged along the height direction; the oil tank protection chamber 200 has a first region 201 and a second region 202 distributed along the height direction, the first region 201 is located outside the first plant 110 and adjacent to the first plant 110, the second region 202 is located outside the second plant 120 and adjacent to the second plant 120, and the bottom surface of the second region 202 is flush with the bottom surface of the second plant 120.

[0067] Specifically, the oil tank protection chamber 200 is located outside the first plant 110 and adjacent to the power generation room 111. This not only allows for rapid fire suppression of the oil tank 210, but also shortens the return and supply pipelines between the oil tank 210 and the standby generator set 112, reducing costs while improving safety. The first area 201 of the oil tank protection chamber 200 is located above ground, and the second area 202 is located below ground, with the bottom of the second area 202 flush with the bottom of the second plant 120. This allows for simultaneous excavation of both the second plant 120 and the second area 202 to the same depth, reducing excavation difficulty.

[0068] Please refer to Figure 1-2 Since the protection zone of oil tank 210 was moved from the second plant 120 to the outside of the power plant 100, the oil tank protection room 200 no longer occupies the space of the second plant 120, thereby reducing the depth of the second plant 120 from the original depth of 11.3m to the current depth of 5m, reducing excavation costs and pipeline layout costs.

[0069] Furthermore, the oil tank protection room 200 is an independent fire compartment, and the fire resistance limit of the fire boundary is increased from two hours to three hours to extend the fire resistance limit duration of the fire boundary and further improve the sealing performance of the fire doors. Firefighting water and other fire-fighting agents can remain inside the oil tank protection room 200 without flowing out, thus enhancing the fire extinguishing effect of the fire-fighting components.

[0070] Furthermore, the top of oil tank 210 is vented to the outside atmosphere via a vent pipe. The oil tank protective chamber 200 utilizes daily forced ventilation to prevent oil and gas accumulation. In case of fire, fire dampers can be closed to prevent the ventilation system from continuously supplying air to the oil tank protective chamber 200, thus limiting oxidizers. The oil tank protective chamber 200 is equipped with smoke and flame detectors and a fixed aqueous film-forming sprinkler system. Once the fire detection system detects an alarm signal, the sprinkler system will automatically activate or be manually activated in an emergency.

[0071] It should be noted that this case applies to the design of new factory buildings and the renovation of old factory buildings. For example, when constructing a new factory building, the original oil tank protection room 200 located within the second factory building 120 can be removed, and the oil tank protection room 200 can be built outside the factory building. When renovating an old factory building, the oil tank protection room 200 can be added directly to the outside of the factory building, and the original oil tank protection room 200 located in the second factory building 120 can be discarded or used for the placement of other equipment.

[0072] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. An oil supply device, characterized in that, The oil supply device is used to supply oil to the standby generator set, which is used for emergency power generation in the power plant. The power plant has a power generation room located above ground, and the standby generator set is located in the power generation room. The oil supply device includes an oil tank protection chamber and an oil tank located in the oil tank protection chamber. The oil tank can be used to receive oil overflowing from the standby generator set. The oil tank protection chamber is independently located outside the power generation room. The oil tank protective chamber is equipped with fire-fighting components, which include a fire-fighting passage that can communicate with the outside, and the fire-fighting passage has an external interface for adding fire-fighting agents; Wherein, the oil tank protective chamber is located below the ground surface, the top surface of the oil tank protective chamber is flush with the ground surface, and the external interface is located on the top surface of the oil tank protective chamber; or, the oil tank protective chamber has a first region and a second region distributed along the height direction, the first region is above the ground surface, the second region is below the ground surface, and the external interface is located on the top or side surface of the first region.

2. The oil supply device according to claim 1, characterized in that... The power plant also has a first plant building located above ground, the power generation room is located inside the first plant building, and the oil tank protection room is independently located outside the first plant building.

3. The oil supply device according to claim 1, characterized in that, The height of the external interface is between 0 and 1.8m.

4. The oil supply device according to claim 2, characterized in that, The power plant also has a second plant located below the ground surface, and the first plant and the second plant are distributed along the height direction; The first plant and / or the second plant are provided with a first side wall at their edges, and the oil tank protection room has a second side wall. The second side wall is adjacent to the first side wall, or the second side wall is adjacent to the first side wall, and there is a gap between the second side wall and the first side wall.

5. The oil supply device according to claim 2, characterized in that, The power plant also has a second plant located below the ground surface, and the first plant and the second plant are distributed along the height direction; The first plant and / or the second plant are provided with a first side wall at their edges. The oil tank protection room has a second side wall opposite to the first side wall and a plurality of third side walls disposed between the first side wall and the second side wall. The two ends of the third side wall are respectively connected to the first side wall and the second side wall. The first side wall, the second side wall and the plurality of third side walls together form a space for placing the oil tank.

6. The oil supply device according to claim 1, characterized in that, Also includes: An oil collection tank is used to collect oil that overflows from the standby generator set; The oil return channel is connected at one end to the oil collection tank and at the other end to the oil tank. An oil pump is installed on the oil return channel.

7. The oil supply device according to claim 1, characterized in that, The power plant also has a first plant building located above ground, the power generation room is located inside the first plant building, and a control room is also located inside the first plant building; The protective room of the oil tank is equipped with a monitoring module and a detection alarm module. The monitoring module includes a camera to capture real-time images of the protective room of the oil tank and transmit them to the control room. The detection and alarm module includes: a combustible gas detector, used to monitor the concentration of combustible gas inside the protective chamber of the oil tank; An alarm is used to send an alarm signal to the control room when the concentration of combustible gas in the oil tank protection room exceeds a preset value.

8. The oil supply device according to claim 7, characterized in that, The combustible gas concentration has a first preset value and a second preset value, and the second preset value is greater than the first preset value; when the combustible gas concentration in the oil tank protection chamber is greater than the first preset value and less than the second preset value, the alarm emits a first-level alarm signal; when the combustible gas concentration in the oil tank protection chamber is greater than the second preset value, the alarm emits a second-level alarm signal.

9. The oil supply device according to claim 1, characterized in that, The oil tank protection room is also equipped with a fire door, which is located on the top or side of the oil tank protection room and is above or flush with the ground.

10. The oil supply device according to claim 1, characterized in that, The oil tank protective chamber is equipped with a first escape passage and a second escape passage that can communicate with the outside world, and the first escape passage and the second escape passage are located at opposite ends of the oil tank protective chamber.

11. The oil supply device according to claim 10, characterized in that, The power plant also has a first plant building located above ground, the power generation room is located inside the first plant building, and the oil tank protection room is independently located outside the first plant building; The first escape route is connected to the interior space of the first factory building, and the second escape route is connected to the outdoor environment.

12. A power plant, characterized in that, It includes at least one oil supply device as described in any one of claims 1 to 11, at least one backup generator set, and a first plant located above the ground, wherein the backup generator set is located inside the first plant and the oil tank protection room is located outside the first plant.

13. The power plant according to claim 12, characterized in that, The power plant also has a second plant located below the ground surface, and the first plant and the second plant are arranged along the height direction; The oil tank protection chamber has a first area and a second area distributed along the height direction. The first area is located outside the first plant and adjacent to the first plant. The second area is located outside the second plant and adjacent to the second plant. The bottom surface of the second area is flush with the bottom surface of the second plant.

Images