Oil supply device of diesel generating set for confluence station of offshore wind plant
By designing connected daily fuel tanks and oil transmission power mechanisms in the offshore wind farm confluence station, the problem of insufficient diesel caused by uneven diesel consumption is solved, and the uniform oil supply and stable operation of the diesel generator set is achieved, ensuring the continuous power supply capacity of the confluence station.
Patent Information
- Application Number
- CN202422632502.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In offshore wind farm confluence stations, the daily fuel tanks of each diesel generator set in the prior art are not uniform in consumption, resulting in insufficient diesel in some oil tanks and unable to work normally, affecting the continuous operation of the confluence station.
An oil supply device is designed in which multiple daily oil tanks are connected through communication pipes, and the oil storage tank supplies oil to only one of the daily oil tanks. The diesel is evenly distributed through the oil pipeline and the oil transmission power mechanism to ensure that all oil tanks have equal liquid levels, and a closed-loop circuit and filtration system are set up to prevent impurities and return.
The diesel level balance in each daily fuel tank is achieved, which avoids the problem of insufficient diesel due to uneven consumption, ensures the normal operation of the diesel generator set, and improves the reliability of the confluence station.
Smart Images
Figure CN223164618U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an oil supply device in the technical field of diesel generator set oil supply. Background Art
[0002] The advantages of an offshore wind farm mainly include not occupying land resources, being basically unaffected by topography and geomorphology, having higher wind speeds, richer wind energy resources, larger single-unit capacities of wind turbines (3 - 5 MW), and higher annual utilization hours. The substation collects and converts the electric energy of the offshore wind farm and transports it to the national power grid. The substation is equipped with a diesel generator set to ensure that after the normal power supply fails, the diesel generator set can be started as a backup power supply to ensure that the substation can continue to operate. In the prior art, each diesel generator of the diesel generator set is equipped with a daily-use fuel tank, and each daily-use fuel tank is refueled regularly through an oil storage tank. However, due to reasons such as the operating conditions of the generator, the diesel consumption is different, and the oil supply amount from the oil storage tank to the daily-use fuel tank is the same. This means that each time oil is supplied, the daily-use fuel tank with less consumption will be fuller, and the diesel in the daily-use fuel tank with more consumption will be less. In this way, once the diesel generator needs to be used for a long time, the oil in the daily-use fuel tank with more consumption will be consumed completely because it cannot be replenished in time, resulting in some diesel generators being unable to work properly and the substation being unable to continue operating due to power failure. Content of the Utility Model
[0003] The purpose of the utility model is to provide an oil supply device for a diesel generator set used in an offshore wind farm substation, which can balance the refueling amount of each daily-use fuel tank, ensure that the fuel tank levels in each daily-use fuel tank are equal, and all can be filled up after refueling.
[0004] To achieve the above purpose, the utility model provides an oil supply device for a diesel generator set used in an offshore wind farm substation, which includes a plurality of daily-use fuel tanks. The daily-use fuel tanks are arranged on the upper layer of the offshore wind farm substation and are on the same layer as the diesel generator set. The bottoms of the daily-use fuel tanks are interconnected through a communicating pipe. The oil inlet at the top of one of the daily-use fuel tanks is connected to the oil outlet at the bottom of the oil storage tank through an oil delivery pipe. An oil delivery power mechanism is arranged on the oil delivery pipe near the oil outlet of the oil storage tank. The oil storage tank is arranged on the lower layer of the offshore wind farm substation, and the fuel filling port of the oil storage tank is connected to a fuel filling mechanism.
[0005] Compared with the prior art, the beneficial effects of the present utility model are as follows: The storage oil tank only supplies oil to one of the daily-use fuel tanks, and all the daily-use fuel tanks are interconnected through connecting pipes. As a result, the diesel oil that enters one daily-use fuel tank will be transported to other daily-use fuel tanks through the connecting pipes, ensuring that the diesel oil levels in all daily-use fuel tanks are equal. This ensures that all daily-use fuel tanks can be filled up completely without the situation of uneven liquid levels. Moreover, when the diesel generator is working, even if the diesel consumption is different, due to the connecting pipes, the diesel oil levels in each daily-use fuel tank will be the same, avoiding the situation of uneven liquid levels.
[0006] As a further improvement of the present utility model, the oil delivery power mechanism includes a diesel fine filter and a pressure gauge. A stop valve and an electric valve are sequentially arranged between the diesel fine filter and the oil outlet. Two sets of gear pumps are arranged between the diesel fine filter and the pressure gauge. A stop valve is arranged between the gear pump and the diesel fine filter. A pressure switch and a stop check valve are sequentially arranged between the gear pump and the pressure gauge.
[0007] In this way, when the stop valve and the electric valve are opened, the diesel oil is filtered by the diesel fine filter and then sent to the daily-use fuel tank by the gear pump. The pressure gauge monitors the oil pressure in the pipeline in real time. Two sets of gear pumps are provided, and one of them can be used as a standby to avoid the situation that oil supply cannot continue when one gear pump is damaged. The stop check valve also prevents the diesel oil in the daily-use fuel tank from flowing back.
[0008] As a further improvement of the present utility model, the refueling mechanism includes a fueling pipe connected to the fueling port. The end of the fueling pipe is connected to an international shore connection. A stop check valve and a stop valve are arranged near the international shore connection. A diesel coarse filter is arranged between the stop valve and the stop check valve.
[0009] In this way, it is connected to the refueling ship through the international shore connection, so that the storage oil tank can be refueled regularly. The diesel coarse filter can filter out large particle impurities in the diesel oil, and the stop check valve prevents the diesel oil in the storage oil tank from flowing back.
[0010] As a further improvement of the present utility model, an oil delivery port is arranged at the lower part of the bottom of the daily-use fuel tank. The oil delivery port is connected to the diesel generator through an oil delivery pipe. An electric ball valve is arranged on the oil delivery pipe, and a stop valve is arranged at the oil delivery port. An oil return port is arranged at the top of the daily-use fuel tank. The oil return port is connected to the diesel generator through an oil return pipe.
[0011] In this way, when the electric ball valve and the stop valve are opened, the diesel oil in the daily-use fuel tank can be sent into the diesel generator through the oil delivery pipe, and the return oil of the diesel generator returns from the top of the daily-use fuel tank, forming a closed-loop circuit.
[0012] As a further improvement of the present utility model, an overflow port is arranged at the upper part of the daily-use fuel tank. The overflow port is connected to the oil return port at the top of the storage oil tank through an overflow pipe.
[0013] In this way, once over-fueling occurs, the excess diesel will flow back into the storage tank through the overflow port at the top.
[0014] As a further improvement of the present utility model, a drain port is provided at the bottom of the daily-use fuel tank, and the drain port is connected to an overflow pipe through a stop valve.
[0015] In this way, during maintenance, the diesel in the daily-use fuel tank can be drained back into the storage tank through the overflow pipe via the drain port, which is convenient for maintenance.
[0016] As a further improvement of the present utility model, a magnetic flap level gauge is provided inside the daily-use fuel tank.
[0017] In this way, the liquid level inside the daily-use fuel tank can be effectively and real-time monitored, which is convenient for timely replenishment when the diesel is insufficient.
[0018] As a further improvement of the present utility model, a breather port is opened at the top of the daily-use fuel tank, the breather ports of the daily-use fuel tank are communicated through a breather pipe, and a flame arrester breather cap is provided at the top of the breather pipe.
[0019] In this way, the daily-use fuel tank can be balanced with the external atmospheric pressure, and it can also prevent fire to ensure safety.
[0020] As a further improvement of the present utility model, the breather port at the top of the storage tank is also connected to a breather pipe, and a flame arrester breather cap is provided at the top of the breather pipe.
[0021] In this way, the storage tank can be balanced with the external atmospheric pressure, and it can also prevent fire to ensure safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic structural diagram of the present utility model.
[0023] Wherein, 1 breather pipe, 2 flame arrester breather cap, 3 magnetic flap level gauge, 4 overflow pipe, 5 fuel delivery pipe, 6 stop valve, 7 electric ball valve, 8 supply pipe, 9 return pipe, 10 daily-use fuel tank, 11 connecting pipe, 12 fuel filling pipe, 13 check valve, 14 diesel coarse filter, 15 international shore connection, 16 storage tank, 17 electric valve, 18 diesel fine filter, 19 pressure gauge, 20 gear pump, 21 pressure switch. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0024] The present utility model will be further described below with reference to the accompanying drawings:
[0025] As shown in Figure 1An oil supply device for a diesel generator set used in a substation of an offshore wind farm, comprising a plurality of daily-use fuel tanks 10. The daily-use fuel tanks 10 are arranged on the upper layer of the substation of the offshore wind farm and are on the same layer as the diesel generator set. The bottoms of the daily-use fuel tanks 10 are interconnected through a connecting pipe 11. The oil inlet at the top of one of the daily-use fuel tanks 10 is connected to the oil outlet at the bottom of the storage tank 16 through an oil pipeline 5. An oil transmission power mechanism is arranged near the oil outlet of the storage tank 16 on the oil pipeline 5. The storage tank 16 is arranged on the lower layer of the substation of the offshore wind farm, and the fuel filling port of the storage tank 16 is connected to a fuel filling mechanism.
[0026] The oil transmission power mechanism includes a diesel fine filter 18 and a pressure gauge 19. A stop valve 6 and an electric valve 17 are sequentially arranged between the diesel fine filter 18 and the oil outlet. Two sets of gear pumps 20 are arranged between the diesel fine filter 18 and the pressure gauge 19. A stop valve 6 is arranged between the gear pump 20 and the diesel fine filter 18. A pressure switch 21 and a stop check valve 13 are sequentially arranged between the gear pump 20 and the pressure gauge 19.
[0027] The fuel filling mechanism includes a fuel filling pipe 12 connected to the fuel filling port. The end of the fuel filling pipe 12 is connected to an international shore connection 15. A stop check valve 13 and a stop valve 6 are arranged near the international shore connection 15. A diesel coarse filter 14 is arranged between the stop valve 6 and the stop check valve 13.
[0028] A fuel delivery port is arranged at the lower part of the bottom of the daily-use fuel tank 10. The fuel delivery port is connected to the diesel generator through a fuel delivery pipe 8. An electric ball valve 7 is arranged on the fuel delivery pipe 8. A stop valve 6 is arranged at the fuel delivery port. An oil return port is arranged at the top of the daily-use fuel tank 10. The oil return port is connected to the diesel generator through an oil return pipe 9. An overflow port is arranged at the upper part of the daily-use fuel tank 10. The overflow port is connected to the oil return port at the top of the storage tank 16 through an overflow pipe 4. A drain port is arranged at the bottom of the daily-use fuel tank 10. The drain port is connected to the overflow pipe 4 through a stop valve 6. A magnetic flap level gauge 3 is arranged in the daily-use fuel tank 10.
[0029] A vent port is opened at the top of the daily-use fuel tank 10. The vent ports of the daily-use fuel tank 10 are interconnected through a vent pipe 1. A flame arrestor breather cap 2 is arranged at the top of the vent pipe 1. The vent port at the top of the storage tank 16 is also connected to the vent pipe 1, and a flame arrestor breather cap 2 is arranged at the top of the vent pipe 1.
[0030] In the present utility model, when it is necessary to replenish diesel to the daily-use fuel tank 10, the stop valve 6 and the electric valve 17 are opened. After being filtered by the diesel fine filter 18, the diesel is sent to the daily-use fuel tank 10 by the gear pump 20. The pressure gauge 19 monitors the oil pressure in the pipeline in real time. Two sets of gear pumps 20 are provided, and one of them can be used as a standby to avoid the inability to continue oil supply after one gear pump 20 is damaged. The stop check valve 13 is also used to prevent the diesel in the daily-use fuel tank 10 from flowing back.
[0031] Sixteen oil storage tanks supply oil to one of the daily-use fuel tanks 10. All the daily-use fuel tanks 10 are interconnected through connecting pipes 11, so that the diesel oil entering one daily-use fuel tank 10 will be transported to other daily-use fuel tanks 10 through the connecting pipes 11, ensuring that the diesel oil levels in all daily-use fuel tanks 10 are equal, thus ensuring that all daily-use fuel tanks 10 can be filled up without uneven liquid levels.
[0032] Moreover, when the diesel generator is working, by opening the electric ball valve 7 and the stop valve 6, the diesel oil in the daily-use fuel tank 10 can be sent into the diesel generator through the fuel supply pipe 8. The return oil of the diesel generator returns from the top of the daily-use fuel tank 10, forming a closed-loop circuit. And even if different diesel engines have different diesel consumption due to working conditions and other reasons, due to the connecting pipes 11, the diesel oil levels in each daily-use fuel tank 10 will be the same, avoiding the situation of uneven liquid levels.
[0033] When the diesel oil in the oil storage tank 16 is insufficient, it can be connected to a refueling ship through the international shore connection 15, so that the oil storage tank 16 can be refueled regularly. The diesel coarse filter 14 can filter out large particle impurities in the diesel oil, and the check valve 13 prevents the diesel oil in the oil storage tank 16 from flowing back.
[0034] By connecting all the daily-use fuel tanks 10, the utility model can achieve uniform supply of diesel oil, avoiding the situation that some diesel generators cannot work properly due to lack of diesel oil because the diesel oil in each daily-use fuel tank 10 is unequal.
[0035] The utility model is not limited to the above embodiments. Based on the disclosed technical solutions, those skilled in the art can make some substitutions and deformations to some technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are all within the protection scope of the utility model.
Claims
1. An oil supply device for a diesel generator set used in a substation of an offshore wind farm, comprising a plurality of daily-use fuel tanks, characterized in that, The day tank is arranged on the upper layer of the offshore wind farm substation and is on the same layer as the diesel generator set. The bottoms of the day tanks are interconnected through connecting pipes. The oil inlet at the top of one of the day tanks is connected to the oil outlet at the bottom of the storage tank through an oil pipeline. An oil transfer power mechanism is arranged near the oil outlet of the storage tank on the oil pipeline. The storage tank is arranged on the lower layer of the offshore wind farm substation, and the fuel filling port of the storage tank is connected to the fuel filling mechanism.
2. The fuel supply device for a diesel generator set used in a substation of an offshore wind farm according to claim 1, characterized in that: The oil transfer power mechanism includes a diesel fine filter and a pressure gauge. A stop valve and an electric valve are sequentially arranged between the diesel fine filter and the oil outlet. Two gear pumps are arranged between the diesel fine filter and the pressure gauge. A stop valve is arranged between the gear pump and the diesel fine filter. A pressure switch and a stop check valve are sequentially arranged between the gear pump and the pressure gauge.
3. The fuel supply device for a diesel generator set used in an offshore wind farm substation according to claim 2, characterized in that: The fuel filling mechanism includes a fuel filling pipe connected to the fuel filling port. The end of the fuel filling pipe is connected to an international shore connection. A stop check valve and a stop valve are arranged near the international shore connection. A diesel coarse filter is arranged between the stop valve and the stop check valve.
4. The fuel supply device for a diesel generator set used in a substation of an offshore wind farm according to claim 3, characterized in that: A fuel delivery port is arranged at the lower part of the bottom of the day tank. The fuel delivery port is connected to the diesel generator through a fuel delivery pipe. An electric ball valve is arranged on the fuel delivery pipe. A stop valve is arranged at the fuel delivery port. An oil return port is arranged at the top of the day tank. The oil return port is connected to the diesel generator through an oil return pipe.
5. The fuel supply device of a diesel generator set for a sea wind farm substation according to claim 4, characterized in that: An overflow port is arranged at the upper part of the day tank. The overflow port is connected to the oil return port at the top of the storage tank through an overflow pipe.
6. The fuel supply device for a diesel generator set used in a substation of an offshore wind farm according to claim 5, characterized in that: A drain port is arranged at the bottom of the day tank. The drain port is connected to the overflow pipe through a stop valve.
7. The fuel supply device for a diesel generator set used in a substation of an offshore wind farm according to claim 6, characterized in that: A magnetic flap level gauge is arranged in the day tank.
8. The fuel supply device for a diesel generator set used in a sea wind farm substation according to any one of claims 1-7, characterized in that: A vent port is opened at the top of the day tank. The vent ports of the day tank are connected through a vent pipe. A flame arrestor breather is arranged at the top of the vent pipe.
9. The fuel supply device of a diesel generator set for an offshore wind farm substation according to any one of claims 1-7, characterized in that: The vent port at the top of the storage tank is also connected to a vent pipe. A flame arrestor breather is arranged at the top of the vent pipe.