Oil supply system of diesel generating set

Abstract

The utility model relates to an oil supply system of a diesel generating set, which is characterized by comprising an oil storage tank, a first oil supply pump, an oil supply pump controller, an oil return pump, an oil return pump controller, an oil cylinder, an oil supply pipe and an oil return pipe, the oil cylinder comprises an oil quantity sensor, the oil quantity sensor is electrically connected with the oil supply pump controller and the oil scavenger pump controller, the oil supply pump controller is electrically connected with the first oil supply pump, and the oil scavenger pump controller is electrically connected with the oil scavenger pump. The oil quantity in the oil cylinder is monitored in real time through the oil quantity sensor on the oil cylinder, automatic oil supply and oil return are achieved by controlling the oil supply pump controller and the oil return pump controller, operation is easy, and safety is high; in addition, the oil inlet pipe and the oil return pipe are separated, so that hot fuel oil is prevented from flowing back.

Description

Technical Field

[0001] The utility model relates to an oil supply system for a diesel generator set. Background Art

[0002] Diesel generators play an important role in daily production and life. Long-term operation of generators requires stable oil supply to avoid sudden flameout. However, for large diesel generators, considering safety factors, it is not appropriate to set up large oil tanks near the generators. At present, the oil supply to the generator is usually done by manual detection at a fixed time and quantity. This method is not only time-consuming and laborious, but may also cause safety problems due to untimely detection. Therefore, how to stably and continuously supply oil has become a research topic for technicians in this field. Utility Model Content

[0003] Based on this, the purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and provide a fuel supply system for a diesel generator set that can realize automatic control.

[0004] A diesel generator oil supply system comprises an oil storage tank, a first oil supply pump, an oil supply pump controller, an oil return pump, an oil return pump controller, an oil cylinder, an oil supply pipe and an oil return pipe;

[0005] The first oil supply pump and the oil return pump have an input end and an output end, and the oil cylinder has a first input end and a first output end; the oil storage tank is connected to the input end of the first oil supply pump through the oil supply pipe, and the output end of the first oil supply pump is connected to the first input end of the oil cylinder; the first output end of the oil cylinder is connected to the input end of the oil return pump, and the output end of the oil return pump is connected to the oil storage tank through the oil return pipe;

[0006] The oil cylinder also includes an oil level sensor, which is electrically connected to the oil supply pump controller and the oil return pump controller respectively. The oil supply pump controller is electrically connected to the first oil supply pump, and the oil return pump controller is electrically connected to the oil return pump.

[0007] The utility model monitors the oil level in the oil cylinder in real time through the oil level sensor on the oil cylinder, and realizes automatic oil supply and oil return to the diesel generator by controlling the oil supply pump controller and the oil return pump controller. The operation is simple and the safety is high. In addition, the utility model also separates the oil supply pipe and the oil return pipe to prevent the backflow of hot fuel.

[0008] As a preferred solution, a fuel supply system of a diesel generator set also includes a second fuel supply pump, the second fuel supply pump has an input end and an output end, the oil storage tank is connected to the input end of the second fuel supply pump through the fuel supply pipe, and the output end of the second fuel supply pump is connected to the first input end of the oil cylinder; the fuel supply pipe is also provided with a double-barrel filter valve. Through the combination of two fuel supply pumps and double-barrel filter valves, they can serve as backup for each other during daily work, and maintenance can be performed without stopping the machine to ensure the normal and continuous operation of the fuel supply system.

[0009] As a preferred solution, the input and output ends of the first oil supply pump, the second oil supply pump and the oil return pump are all provided with manual valves, which are convenient for manual closure in case of emergency and for shutting down the pump for maintenance.

[0010] As a preferred solution, the input and output ends of the first oil supply pump, the second oil supply pump and the oil return pump are all provided with pressure gauges to facilitate observation of pipeline pressure.

[0011] As a preferred solution, the fuel supply pump controller is also electrically connected to the second fuel supply pump.

[0012] As a preferred solution, the oil supply pump controller and the oil return pump controller are both provided with an emergency stop pull wire, which can be used to manually shut down the oil supply pump or the oil return pump in the event of an accident.

[0013] As a preferred solution, the oil supply pipe is inserted into the oil storage tank and its end is located at the bottom of the oil storage tank, and the oil return pipe is connected to the top of the oil storage tank.

[0014] As a preferred solution, the oil supply pipe is a DN65 seamless steel pipe, and the oil return pipe is a DN50 seamless steel pipe.

[0015] As a preferred solution, the oil cylinder also has a ventilation pipe, which is a DN50 seamless steel pipe. The ventilation pipe can discharge the combustible gas volatilized from the fuel in the oil cylinder.

[0016] As a preferred solution, a fuel supply system of a diesel generator set also includes an oil pan, which is located at the bottom of the oil cylinder and can recover the fuel leaked from the oil cylinder, or recover the remaining fuel in the oil cylinder during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the fuel supply system of a diesel generator set;

[0018] Among them, 1-oil storage tank, 21-first oil supply pump, 22-second oil supply pump, 3-return oil pump, 4-oil cylinder, 41-oil level sensor, 42-ventilation pipe, 43-oil tray, 5-oil supply pipe, 6-return oil pipe, 71-oil supply pump controller, 72-return oil pump controller, 73-emergency stop pull wire, 8-diesel generator. DETAILED DESCRIPTION

[0019] like Figure 1 As shown, a fuel supply system for a diesel generator set includes an oil storage tank 1, a first fuel supply pump 21, a second fuel supply pump 22, an oil return pump 3, an oil cylinder 4, an oil supply pipe 5, an oil return pipe 6, an oil supply pump controller 71, an oil return pump controller 72 and a diesel generator 8.

[0020] The first oil supply pump 21, the second oil supply pump 22, the return oil pump 3 and the diesel generator 8 have an input end and an output end, and the oil cylinder 4 has a first input end, a second input end, a first output end and a second output end; the input end and the output end of the first oil supply pump 21, the second oil supply pump 22 and the return oil pump 3 are all provided with pressure gauges and manual valves, which are convenient for daily observation of pipeline pressure and manual shutdown of the pump, as well as shutdown for maintenance.

[0021] The oil supply pipe 5 is also provided with a double-barrel filter valve. The oil supply pipe 5 is inserted into the oil storage tank 1 and one end thereof is located at the bottom of the oil storage tank 1, and the other end is divided into two by the double-barrel filter valve, respectively connecting the input end of the first oil supply pump 21 and the input end of the second oil supply pump 22.

[0022] The output end of the first oil supply pump 21 is connected to the first input end of the oil cylinder 4, and the output end of the second oil supply pump 22 is connected to the first input end of the oil cylinder 4; the first output end of the oil cylinder 4 is connected to the input end of the oil return pump 3, and the output end of the oil return pump 3 is connected to the oil storage tank 1 through the oil return pipe 6, and the oil return pipe 6 is connected to the top of the oil storage tank 1; the second input end of the oil cylinder 4 is connected to the output end of the diesel generator 8, and the second output end of the oil cylinder 4 is connected to the input end of the diesel generator 8. The oil supply pipe 5 is a DN65 seamless steel pipe, and the oil return pipe 6 is a DN50 seamless steel pipe. The utility model separates the oil supply pipe and the oil return pipe, which can prevent the hot fuel from flowing back.

[0023] The oil cylinder 4 also includes an oil level sensor 41, a ventilation pipe 42 and an oil tray 43. The oil level sensor 41 is electrically connected to the oil supply pump controller 71 and the oil return pump controller 72 respectively. The oil supply pump controller 71 is electrically connected to the first oil supply pump 21 and the second oil supply pump 22, and the oil return pump controller 72 is electrically connected to the oil return pump 3. The oil level sensor monitors the oil level in the oil cylinder in real time. When the oil level in the oil cylinder is less than 30%, the oil supply pump controller 71 controls the first oil supply pump 21 and / or the second oil supply pump 22 to start working, so that the fuel is turned on. When the oil volume of the oil cylinder 4 is greater than 80%, the oil supply pump controller 71 controls the first oil supply pump 21 and the second oil supply pump 22 to stop working, so that the fuel stops being input to the first input end of the oil cylinder 4; when the oil volume of the oil cylinder 4 is greater than 90%, the return oil pump controller 72 controls the return oil pump 3 to start working, so that the fuel starts to be output from the first output end of the oil cylinder 4 to the return oil pipe 6; when the oil volume of the oil cylinder 4 is less than 80%, the return oil pump controller 72 controls the return oil pump 3 to stop working, so that the fuel stops being output from the first output end of the oil cylinder 4. Through the real-time control of the oil volume sensor 41 and the oil supply pump controller 71 and the return oil pump controller 72, automatic oil supply and return to the diesel generator are realized, which is simple to operate and highly safe. In addition, the oil supply pump controller 71 and the return oil pump controller 72 are both provided with an emergency stop pull line 73. The emergency stop pull line can manually control the shutdown of the first oil supply pump 21, the second oil supply pump 22 or the return oil pump 3 in the event of an accident.

[0024] The ventilation pipe 42 is connected to the top of the oil cylinder 4 and is a DN50 seamless steel pipe, which can discharge the combustible gas volatilized from the fuel in the oil cylinder 4; the oil tray 43 is located below the oil cylinder 4, and a manual valve is also provided at the bottom of the oil cylinder 4, which can recover the fuel leaked from the oil cylinder 4 on the one hand, and recover the remaining fuel in the oil cylinder 4 during maintenance on the other hand.

[0025] The above description in combination with the drawings and embodiments is illustrative and not restrictive. Those skilled in the art should understand that, under the inspiration of the present utility model, other persons may also make designs similar to the present utility model or make some additions or changes to the present utility model. It should be particularly pointed out that, as long as they do not deviate from the design purpose of the present utility model, all obvious changes and similar designs with equivalent replacements should fall within the scope of protection of the present utility model.

Claims

1. A diesel generator oil supply system, characterized in that: It includes an oil storage tank, a first oil supply pump, an oil supply pump controller, an oil return pump, an oil return pump controller, an oil cylinder, an oil supply pipe and an oil return pipe; The first oil supply pump and the oil return pump have an input end and an output end, and the oil cylinder has a first input end and a first output end; the oil storage tank is connected to the input end of the first oil supply pump through the oil supply pipe, and the output end of the first oil supply pump is connected to the first input end of the oil cylinder; the first output end of the oil cylinder is connected to the input end of the oil return pump, and the output end of the oil return pump is connected to the oil storage tank through the oil return pipe; The oil cylinder also includes an oil level sensor, which is electrically connected to the oil supply pump controller and the oil return pump controller respectively. The oil supply pump controller is electrically connected to the first oil supply pump, and the oil return pump controller is electrically connected to the oil return pump.

2. A diesel generator oil supply system according to claim 1, characterized in that: It also includes a second oil supply pump, which has an input end and an output end. The oil storage tank is connected to the input end of the second oil supply pump through the oil supply pipe, and the output end of the second oil supply pump is connected to the first input end of the oil cylinder; the oil supply pipe is also provided with a double-tube filter valve.

3. A diesel generator oil supply system according to claim 2, characterized in that: Manual valves are provided at the input and output ends of the first oil supply pump, the second oil supply pump and the oil return pump.

4. A diesel generator oil supply system according to claim 2, characterized in that: The input end and the output end of the first oil supply pump, the second oil supply pump and the oil return pump are all provided with pressure gauges.

5. A diesel generator oil supply system according to claim 2, characterized in that: The fuel supply pump controller is also electrically connected to the second fuel supply pump.

6. A diesel generator oil supply system according to claim 1, characterized in that: The oil supply pump controller and the oil return pump controller are both provided with emergency stop pull wires.

7. A diesel generator oil supply system according to claim 1, characterized in that: The oil supply pipe is inserted into the oil storage tank and an end portion thereof is located at the bottom of the oil storage tank, and the oil return pipe is communicated with the top of the oil storage tank.

8. A diesel generator oil supply system according to claim 1, characterized in that: The oil supply pipe is a DN65 seamless steel pipe, and the oil return pipe is a DN50 seamless steel pipe.

9. A diesel generator oil supply system according to claim 1, characterized in that: The oil cylinder is also provided with a ventilation pipe, which is a DN50 seamless steel pipe.

10. A diesel generator oil supply system according to claim 1, characterized in that: An oil tray is also included, and the oil tray is located at the bottom of the oil cylinder.

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