Oil supply control system of diesel generating set applied to data center

Abstract

The utility model relates to an oil supply control system of a diesel generating set applied to a data center, which comprises an oil tank oil supply control unit, an oil tank oil supply control unit and a redundant PLC (programmable logic controller) control unit, and a data instruction interaction end of the redundant PLC control unit is in communication connection with the oil tank oil supply control unit and the oil tank oil supply control unit. The oil tank oil supply control unit comprises a plurality of oil tank oil supply control modules, the oil supply ends of the oil tank oil supply control modules communicate with the oil inlet ends of the diesel generators, and the oil return ends of the oil tank oil supply control modules communicate with the oil outlet ends of the diesel generators. An oil outlet of the oil tank oil supply control unit communicates with the oil filling ends of the oil tank oil supply control modules, and an oil return opening of the oil tank oil supply control unit communicates with the oil discharging ends of the oil tank oil supply control modules. The liquid level of a daily oil tank of the diesel generator is detected in real time, and the oil tank is controlled to add oil to the diesel generator, so that control over oil supply is achieved.

Description

Technical Field

[0001] This utility model relates to the field of control in data centers, and more particularly to a fuel supply control system for diesel generator sets used in data centers. Background Technology

[0002] Currently, the fuel supply systems for diesel generator sets in domestic intelligent computing centers and large-scale intelligent urban infrastructure all employ a traditional, decentralized approach with single controllers from different manufacturers. This results in fragmented data acquisition, control, and difficulties in data coordination, leading to challenges in networking, lack of uniformity, stability, reliability, and the ability to automatically adapt and flexibly adjust. Furthermore, it poses significant risks and hidden dangers. With technological advancements and the widespread adoption of artificial intelligence, higher and more stringent requirements are being placed on power supply security, making the timeliness and reliability of diesel generator set fuel supply systems a key focus of recent research and exploration. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a fuel supply control system for diesel generator sets applied to data centers, which controls the fuel tank to refuel the diesel generator by real-time detection of the fuel level in the daily fuel tank.

[0004] The technical solution of this utility model embodiment is as follows:

[0005] A fuel supply control system for a diesel generator set used in a data center includes a fuel tank supply control unit, a fuel tank supply control unit, and a redundant PLC control unit. The power supply terminal of the redundant PLC control unit is electrically connected to an external dual-path UPS power supply. The data command interaction terminal of the redundant PLC control unit is communicatively connected to the fuel tank supply control unit and the fuel tank supply control unit. The third-party data transmission terminal of the redundant PLC control unit is communicatively connected to an external third-party BA control system. The fuel tank supply control unit includes multiple fuel tank supply control modules. The fuel supply terminal of each fuel tank supply control module is connected to the fuel inlet terminal of the diesel generator via a pipeline. The return oil end of the oil control module is connected to the oil outlet end of the diesel generator via a pipeline. Diesel fuel is interconnected among the multiple oil tank supply control modules via pipelines. The oil outlet of the oil tank supply control unit is connected to the refueling end of the multiple oil tank supply control modules via a pipeline. The return oil end of the oil tank supply control unit is connected to the unloading end of the multiple oil tank supply control modules via a pipeline. The oil outlet signal end and liquid level signal end of the oil tank supply control unit are communicatively connected to the redundant PLC control unit. The refueling signal end, liquid level signal end, and unloading signal end of the oil tank supply control module are communicatively connected to the redundant PLC control unit. The oil tank supply control unit is buried underground.

[0006] Preferably, the fuel tank supply control module includes a fuel pump, a fuel valve, a fuel pump, a fuel valve, a first flame arrestor vent cap, a day-use fuel tank, and a magnetic level gauge. The inlet of the fuel pump is connected to the outlet of the fuel tank supply control unit via a pipeline, the outlet of the fuel pump is connected to the inlet of the fuel valve via a pipeline, the outlet of the fuel valve is connected to the inlet of the day-use fuel tank, the fuel valve's fuel signal terminal is communicatively connected to the redundant PLC control unit, and the inlet of the fuel pump is connected to the fuel pump via a pipeline. The oil pump is connected to the outlet of the daily oil tank. The outlet of the oil pump is connected to the inlet of the oil unloading valve through a pipe. The outlet of the oil unloading valve is connected to the return port of the oil tank supply control unit. The unloading signal terminal of the oil unloading valve is communicatively connected to the redundant PLC control unit. The first flame-arresting vent cap is connected to the vent of the daily oil tank through a vent pipe. The magnetic level gauge is located inside the daily oil tank. The level signal terminal of the magnetic level gauge is communicatively connected to the redundant PLC control unit.

[0007] Preferably, the fuel tank supply control module further includes a temperature sensor and a leak detector. The temperature sensor is located inside the daily fuel tank, and its signal terminal is communicatively connected to the redundant PLC control unit. The leak detector is located at the bottom of the daily fuel tank, and its signal terminal is communicatively connected to the redundant PLC control unit.

[0008] Preferably, the oil tank supply control unit includes a buried oil tank, a manhole, a waterproof well cover, a second flame-arresting vent cap, an oil tank, a pump, a level gauge, and an oil overflow prevention pipe. The buried oil tank is located underground. The manhole passes through the ground and is located above the connection port of the buried oil tank. The waterproof well cover is placed at the upper end of the manhole. The second flame-arresting vent cap communicates with the internal space of the buried oil tank through a vent pipe via the connection port of the buried oil tank. The oil outlet of the oil tank is connected to the oil overflow prevention pipe in the buried oil tank through a pipe via the connection port of the buried oil tank. The pumping end of the pump is placed inside the buried oil tank through the connection port of the buried oil tank. The pumping end of the pump is connected to the inlet of the daily oil tank through a pipe. The signal terminal of the pump, the level gauge, and the redundant PLC control unit are communicatively connected.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up redundant PLC control units to intelligently collect and detect oil quantity data in real time for multiple oil tank supply control modules and oil tank supply control units, the system can be controlled in real time to improve refueling efficiency. Attached Figure Description

[0010] Figure 1This is a schematic diagram illustrating the architecture of a fuel supply control system for a diesel generator set applied to a data center, as described in this utility model.

[0011] 10. Fuel tank supply control module; 11. Fuel pump; 12. Fuel valve; 13. Unloading pump; 14. Unloading valve; 15. First flame arrestor vent cap; 16. Daily fuel tank; 17. Magnetic level gauge; 18. Temperature sensor; 19. Oil leak detector; 20. Fuel tank supply control unit; 21. Buried fuel tank; 22. Manhole body; 23. Waterproof well cover; 24. Second flame arrestor vent cap; 25. Filling tank; 26. Pump; 27. Level gauge; 28. Oil overflow prevention pipe; 30. Redundant PLC control unit; 40. External dual-channel UPS power supply; 50. External third-party BA control system; 60. Diesel generator; 70. Ground. Detailed Implementation

[0012] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0013] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0015] like Figure 1 As shown, Figure 1This is a schematic diagram illustrating the architecture of a fuel supply control system for a diesel generator set used in a data center, according to this utility model. The fuel supply control system includes a fuel tank supply control unit, a fuel tank supply control unit 20, and a redundant PLC control unit 30. The power supply terminal of the redundant PLC control unit 30 is electrically connected to an external dual-path UPS power supply 40. The data command interaction terminal of the redundant PLC control unit 30 is communicatively connected to the fuel tank supply control unit 20 and the fuel tank supply control unit. The third-party data transmission terminal of the redundant PLC control unit 30 is communicatively connected to an external third-party BA control system 50. The fuel tank supply control unit includes multiple fuel tank supply control modules 10, and the fuel supply terminals of the fuel tank supply control modules 10 are connected to... The diesel generator 60 has an inlet connected to the fuel tank. The return fuel tank control module 10 is connected to the outlet fuel tank of the diesel generator 60 via a pipeline. Diesel fuel is exchanged between multiple fuel tank control modules 10 via pipelines. The outlet fuel tank control unit 20 is connected to the refueling fuel tanks of multiple fuel tank control modules 10 via a pipeline. The return fuel tank control unit 20 is connected to the unloading fuel tanks of multiple fuel tank control modules 10 via a pipeline. The outlet fuel tank control unit 20 and the liquid level fuel tank control unit 20 are communicatively connected to the redundant PLC control unit 30. The refueling fuel tank control module 10, the liquid level fuel tank control module 10, and the unloading fuel tank control unit 20 are communicatively connected to the redundant PLC control unit 30. The fuel tank control unit 20 is buried underground.

[0016] Each diesel generator is equipped with a fuel tank supply control module, which stores, outputs, and recovers diesel fuel. The stored diesel fuel is added to and unloaded via an underground fuel tank supply control unit. Both the fuel tank supply control module and the fuel tank supply control unit receive control signals from a redundant PLC control unit for fuel supply control. Simultaneously, both the fuel tank supply control module and the fuel tank supply control unit have their own fuel level detection function and transmit the level data to the redundant PLC control unit. The redundant PLC control unit then controls the fuel tank supply control module and the fuel tank supply control unit to perform refueling, unloading, loading, and return operations based on the data. In the fuel tank supply control module, when the fuel level is high, the redundant PLC control unit sends a stop fuel supply signal to the fuel tank supply control module, stopping refueling. When the fuel level is low, the redundant PLC control unit sends an start fuel supply signal to the fuel tank supply control module, starting the fuel supply operation. The system operates as follows: In the oil tank supply control unit, when the oil level is high, the redundant PLC control unit sends a stop-supply signal to the oil tank supply control unit, halting the supply. When the oil level is low, the redundant PLC control unit sends an start-supply signal to the oil tank supply control unit, initiating the filling process. The redundant PLC control unit consists of redundant controllers. When the main controller fails, it immediately switches to the backup controller to continue operation, with a very short switching time. The redundant PLC control unit is equipped with a touchscreen, allowing for manual operation, data archiving, data recording, event logging, and alarm recording. It also has the capability to interface with third-party Building Automation (BA) control systems, pushing data to third-party monitoring platforms such as DCIM (Dynamic Power and Environmental Monitoring System), BMS (Building Management System), and BA. The redundant PLC control unit features dual power supplies and a UPS, ensuring uninterrupted power supply to the entire system.

[0017] Regarding how the fuel tank supply control module implements functions such as refueling, unloading, and fuel level detection, preferably, the fuel tank supply control module 10 includes a refueling pump 11, a refueling valve 12, an unloading pump 13, an unloading valve 14, a first flame arrestor vent cap 15, a day-use fuel tank 16, and a magnetic level gauge 17. The inlet of the refueling pump 11 is connected to the outlet of the fuel tank supply control unit 20 via a pipe, and the outlet of the refueling pump 11 is connected to the inlet of the refueling valve 12 via a pipe. The outlet of the refueling valve 12 is connected to the inlet of the day-use fuel tank 16, and the refueling signal terminal of the refueling valve 12 communicates with the redundant PLC control unit 30. The oil unloading pump 13 is connected to the oil outlet of the daily oil tank 16 via a pipe, and the oil outlet of the oil unloading pump 13 is connected to the oil inlet of the oil unloading valve 14 via a pipe. The oil outlet of the oil unloading valve 14 is connected to the oil return port of the oil tank supply control unit 20. The oil unloading signal terminal of the oil unloading valve 14 is communicatively connected to the redundant PLC control unit 30. The first flame-arresting vent cap 15 is connected to the vent of the daily oil tank 16 via a vent pipe. The magnetic level gauge 17 is located inside the daily oil tank 16, and the level signal terminal of the magnetic level gauge 17 is communicatively connected to the redundant PLC control unit 30.

[0018] It provides refueling power through a refueling pump, which receives control signals from a redundant PLC control unit via a refueling valve to turn the pump on and off, thus enabling refueling to begin and stop. The refueling pump draws diesel fuel from the fuel tank supply control unit to the daily fuel tank. It also provides unloading power through an unloading pump, which receives control signals from a redundant PLC control unit via an unloading valve to turn the pump on and off, thus enabling unloading to begin and stop. The unloading pump draws diesel fuel from the daily fuel tank to the fuel tank supply control unit. A magnetic level gauge monitors the level of the fuel in the daily fuel tank. The system performs detection and transmits the detection data to the redundant PLC control unit, providing control data for the redundant PLC control unit to control the refueling and unloading of the daily fuel tank. When the redundant PLC control unit receives a fire signal, it outputs a corresponding unloading signal to the unloading valve to unload the fuel and prevent the fire from spreading further. The first flame-arresting vent cap allows the daily fuel tank to be ventilated with the external environment. Under normal conditions, it is in a ventilated state, making the air pressure inside and outside the daily fuel tank the same. When the fuel tank catches fire, the first flame-arresting vent cap closes, putting it in a closed state, preventing the intake of oxygen and further combustion.

[0019] To more accurately monitor the fuel consumption status in the daily fuel tank, preferably, the fuel tank supply control module 10 further includes a temperature sensor 18 and a leak detector 19. The temperature sensor 18 is located inside the daily fuel tank 16, and its signal terminal is communicatively connected to the redundant PLC control unit 30. The leak detector 19 is located at the bottom of the daily fuel tank 16, and its signal terminal is communicatively connected to the redundant PLC control unit 30.

[0020] A temperature sensor is installed to monitor the temperature inside the daily fuel tank in real time, and the detection data is transmitted to a redundant PLC control unit. The redundant PLC control unit determines whether to activate the fire alarm based on the temperature data changes. An oil leak detector monitors the bottom of the daily fuel tank for oil leaks and transmits the detection data to the redundant PLC control unit. The redundant PLC control unit compares and analyzes the detection data, and issues a warning signal when an oil leak is detected.

[0021] For precise oil filling by the oil tank supply control unit, preferably, the oil tank supply control unit 20 includes a buried oil tank 21, a manhole body 22, a waterproof manhole cover 23, a second flame-arresting vent cap 24, an oil filling tank 25, an oil pump 26, a level gauge 27, and an oil overflow prevention pipe 28. The buried oil tank 21 is placed underground, the manhole body 22 passes through the ground 70 and is located above the connection port of the buried oil tank 21, the waterproof manhole cover 23 is placed at the upper end of the manhole body 22, and the second flame-arresting vent cap 24 is connected to the vent pipe. The oil tank 25 is connected to the underground oil tank 21 through the connection port and the internal space of the underground oil tank 21. The oil outlet of the oil tank 25 is connected to the oil guide anti-overflow pipe 28 in the underground oil tank through the connection port via a pipe. The oil pump 26 is placed in the underground oil tank through the connection port of the underground oil tank 21. The oil pump 26 is connected to the oil inlet of the daily oil tank 16 through a pipe. The signal terminal of the oil pump 26, the liquid level detector 27 and the redundant PLC control unit 30 are communicatively connected.

[0022] The buried oil tank is located underground, with its connection point connected to the surface via a manhole. Personnel on the surface can access the connection point above the tank for maintenance and other auxiliary work through the manhole. A waterproof cover is installed above the manhole, which is closed during off-peak hours to prevent rainwater and debris from falling into the tank's connection point. A second flame-arresting vent cap allows ventilation between the inside of the buried oil tank and the external environment. Under normal conditions, this ventilation ensures equal pressure inside and outside the tank. When the tank catches fire, the first flame-arresting vent cap closes, sealing off the air supply and preventing further combustion. The fuel tank provides the diesel fuel for loading into the oil tank. The diesel fuel in the underground tank is added directly from the outside. When the level gauge in the underground tank detects a low level, it transmits the data to the redundant PLC control unit. Based on the detection data, the redundant PLC control unit sends a control signal, opening the outlet valve of the tank. The stored diesel fuel is then transported through the outlet of the tank and via a pipeline to the overflow prevention pipe. Located inside the tank, the overflow prevention pipe guides the diesel fuel to the bottom of the tank. It has an overflow prevention block at the top; when the tank is full, the overflow prevention block cannot move upwards to prevent diesel fuel from overflowing into the pipeline. The pump, in conjunction with the refueling pump, delivers the diesel fuel from the tank to the daily fuel tank. When refueling is needed, the redundant PLC control unit sends a control signal to the pump, which then begins pumping fuel to the various refueling pumps.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up redundant PLC control units to intelligently collect and detect oil quantity data in real time for multiple oil tank supply control modules and oil tank supply control units, the system can be controlled in real time to improve refueling efficiency.

[0024] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0025] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fuel supply control system for a diesel generator set used in a data center, characterized in that: The system includes a fuel tank supply control unit, a fuel tank supply control unit, and a redundant PLC control unit. The power supply terminal of the redundant PLC control unit is electrically connected to an external dual-circuit UPS power supply. The data command interaction terminal of the redundant PLC control unit is communicatively connected to the fuel tank supply control unit and the fuel tank supply control unit. The third-party data transmission terminal of the redundant PLC control unit is communicatively connected to an external third-party BA control system. The fuel tank supply control unit includes multiple fuel tank supply control modules. The fuel supply terminal of each fuel tank supply control module is connected to the fuel inlet terminal of the diesel generator via a pipeline, and the fuel return terminal of each fuel tank supply control module is connected to the fuel return terminal of the diesel generator via a pipeline. The oil supply control unit is connected to the oil outlet of the diesel generator. Diesel fuel is exchanged between the multiple oil tank supply control modules via pipelines. The oil outlet of the oil tank supply control unit is connected to the refueling end of the multiple oil tank supply control modules via pipelines. The oil return port of the oil tank supply control unit is connected to the unloading end of the multiple oil tank supply control modules via pipelines. The oil outlet signal terminal and liquid level signal terminal of the oil tank supply control unit are communicatively connected to the redundant PLC control unit. The refueling signal terminal, liquid level signal terminal, and unloading signal terminal of the oil tank supply control module are communicatively connected to the redundant PLC control unit. The oil tank supply control unit is buried underground.

2. The oil supply control system according to claim 1, characterized in that: The fuel tank supply control module includes a fuel pump, a fuel valve, a fuel pump, a fuel valve, a first flame arrestor vent cap, a day-use fuel tank, and a magnetic level gauge. The inlet of the fuel pump is connected to the outlet of the fuel tank supply control unit via a pipe. The outlet of the fuel pump is connected to the inlet of the fuel valve via a pipe. The outlet of the fuel valve is connected to the inlet of the day-use fuel tank. The fuel signal terminal of the fuel valve is communicatively connected to the redundant PLC control unit. The inlet of the fuel pump is connected to... The outlet of the daily-use oil tank is connected, the outlet of the unloading pump is connected to the inlet of the unloading valve through a pipe, the outlet of the unloading valve is connected to the return port of the oil tank supply control unit, the unloading signal terminal of the unloading valve is communicatively connected to the redundant PLC control unit, the first flame arrestor vent cap is connected to the vent of the daily-use oil tank through a vent pipe, the magnetic level gauge is located inside the daily-use oil tank, and the level signal terminal of the magnetic level gauge is communicatively connected to the redundant PLC control unit.

3. The oil supply control system according to claim 2, characterized in that: The fuel tank supply control module also includes a temperature sensor and a leak detector. The temperature sensor is located inside the daily fuel tank, and its signal terminal is communicatively connected to the redundant PLC control unit. The leak detector is located at the bottom of the daily fuel tank, and its signal terminal is communicatively connected to the redundant PLC control unit.

4. The oil supply control system according to claim 3, characterized in that: The oil tank supply control unit includes a buried oil tank, a manhole, a waterproof well cover, a second flame-arresting vent cap, an oil tank, a pump, a level gauge, and an oil overflow prevention pipe. The buried oil tank is located underground. The manhole passes through the ground and is located above the connection port of the buried oil tank. The waterproof well cover is placed at the upper end of the manhole. The second flame-arresting vent cap communicates with the internal space of the buried oil tank through a vent pipe via the connection port. The oil outlet of the oil tank is connected to the oil overflow prevention pipe in the buried oil tank via a pipe through the connection port. The pumping end of the pump is placed inside the buried oil tank through the connection port. The pumping end of the pump is connected to the inlet of the daily oil tank via a pipe. The signal terminal of the pump, the level gauge, and the redundant PLC control unit are communicatively connected.

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