Diesel generator set special on-line lubricating oil replenishing device

Abstract

A kind of diesel generator set special on-line replenishing lubricating oil device, including oil pan, liquid level maintainer and lubricating oil replenishing tank arranged at intervals, the oil pan, with liquid level maintainer between by No. 1 pipeline communication, No. 1 pipeline is equipped with No. 1 ball valve, the liquid level maintainer and lubricating oil replenishing tank between by No. 2 pipeline communication, No. 2 pipeline is equipped with No. 2 ball valve;Liquid level maintainer inside is equipped with float ball, float ball is connected switch valve, switch valve and No. 2 pipeline communication;Overall structure is compact, reasonable, easy to operate, by the mutual cooperation of oil pan, liquid level maintainer and lubricating oil replenishing tank between, can conveniently complete on-line oiling work, by the liquid level maintainer control lubricating oil replenishing tank and liquid level maintainer between ball valve's on-off, to realize the purpose of automatic oiling and shut-off, effectively avoid the diesel generator set shutdown caused by insufficient lubricating oil, lay the foundation for long time continuous operation of diesel engine generator set.

Description

Technical Field

[0001] This utility model relates to the technical field of oil replenishment equipment for diesel generators, and in particular to an online lubrication oil replenishment device specifically for diesel generator sets. Background Technology

[0002] As one of the core systems for the normal operation of a diesel engine, the lubrication system can reduce friction between components, cool components, clean impurities, prevent corrosion, and seal.

[0003] The working process of lubricating oil can be roughly summarized as follows: the lubricating oil inlet is below the lubricating oil level in the oil tank, it is pressurized by the oil pump, then filtered, cooled by the cooler, and then enters various lubrication points of the diesel engine, such as crankshaft bearings, pistons, camshafts, etc. With the help of gravity or return oil pump, the lubricating oil finally returns to the lubricating oil tank or return oil tank, forming a closed-loop circulation system. Although it is a closed-loop circulation system, there is some loss of lubricating oil during the circulation of various components and pipelines. Taking the MTU20V4000G23F high-voltage diesel generator set as an example, the rated power is 2200kW, the fuel consumption rate under rated conditions is 192g / kWh, and after the unit runs for 100 hours, the lubricating oil consumption is about 0.3% of the hourly fuel consumption, and the maximum does not exceed 1% of the hourly fuel consumption. Therefore, the lubricating oil consumption under rated conditions is 1.2672kg / h, and the maximum does not exceed 4.224kg / h. It can be seen that the lubricating oil consumption is relatively large when the diesel generator set is running continuously for a long time.

[0004] In existing technologies, most lubricating oil tanks are not separately installed but integrated into the common base frame of the diesel generator set, commonly known as the oil pan. Due to limited space, the oil pan volume is not designed to be very large. If the diesel generator set continues to run, the lubricating oil will inevitably decrease, requiring a shutdown for oil replenishment, thus affecting the continuous operation of the diesel generator set. For special scenarios involving uninterrupted emergency power supply, such shutdowns are absolutely unacceptable. Therefore, developing an online oil replenishment device is particularly important.

[0005] In addition, since the diesel generator set is in operation, the lubricating oil circulates in the components and oil pipelines, so the level of lubricating oil in the oil pan will fluctuate, which makes it difficult to accurately measure the lubricating oil level. Utility Model Content

[0006] To address the shortcomings of existing production technologies, the applicant provides a rationally structured online lubrication oil replenishment device specifically for diesel generator sets. This device includes a customized oil level holder for the lubricating oil in the oil pan, a lubricating oil replenishment tank, and related valves and fittings. The level holder controls the opening and closing of the ball valve between the lubricating oil replenishment tank and the level holder, thereby achieving automatic oil replenishment and shut-off. This effectively prevents diesel generator set shutdowns due to insufficient lubricating oil, laying the foundation for long-term continuous operation of diesel generator sets.

[0007] The technical solution adopted in this utility model is as follows:

[0008] An online lubricating oil replenishment device for diesel generator sets includes an oil pan, a level maintainer, and a lubricating oil replenishment tank arranged at intervals. The oil pan and the level maintainer are connected by a first pipeline, on which a first ball valve is installed. The level maintainer and the lubricating oil replenishment tank are connected by a second pipeline, on which a second ball valve is installed. A float ball is installed inside the level maintainer and is connected to a switching valve, which is connected to the second pipeline.

[0009] The structure of the on / off valve is as follows: it includes a horizontally arranged convex-shaped valve seat, and a valve body is fitted onto the left end of the valve seat by a rubber ring. The left end of the valve body is the water inlet, and the bottom end is the water outlet. The valve core is connected to the left end face of the valve seat by a sealing gasket. A groove is provided below the valve core. A support frame extends downward from the bottom surface of the valve body. The support frame corresponds to the groove, and a rocker arm is hinged to the bottom of the support frame by a pin. One end of the rocker arm extends into the groove, and the other end of the rocker arm is fixedly installed with a connecting rod by a lock nut. The head of the connecting rod is locked to the float.

[0010] As a further improvement to the above technical solution:

[0011] The rocker arm has a right-angled structure.

[0012] The end of the rocker arm that extends into the groove has a rounded end structure.

[0013] The lower part of the rocker arm is arranged coaxially with the connecting rod.

[0014] The lower part of the joystick moves together with the connecting rod.

[0015] The internal structure of the liquid level holder is as follows: it includes a connecting oil tank connected to the No. 1 pipeline, a liquid level gauge is installed on the top surface of the connecting oil tank, and a float ball is arranged inside the connecting oil tank.

[0016] The oil pan is equipped with an inner oil dipstick. A first stopper is placed on the top surface of the oil pan, and a second stopper is placed on one side of the oil pan.

[0017] The top surface of the lubricating oil replenishment tank is equipped with a No. 3 plug.

[0018] The lubricating oil replenishment tank is equipped with a magnetic level gauge.

[0019] A cap is installed at the bottom of the lubricating oil replenishment tank.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model has a compact and reasonable structure and is easy to operate. Through the cooperation between the oil pan, the level holder, and the lubricating oil replenishment tank, online oil replenishment can be easily completed. The level holder controls the opening and closing of the ball valve between the lubricating oil replenishment tank and the level holder, thereby achieving the purpose of automatic oil replenishment and shutdown. This effectively avoids the shutdown of the diesel generator set due to insufficient lubricating oil and lays the foundation for the long-term continuous operation of the diesel generator set.

[0022] In addition, this utility model also has the following advantages:

[0023] 1. The online lubricating oil replenishment device can monitor the lubricating oil level in the oil pan in real time, ensuring that the lubricating oil level is relatively stable, thereby ensuring that the diesel generator set can operate continuously, efficiently and stably.

[0024] 2. The height of the switch valve in the level holder is related to the design level of the oil pan. Different models of diesel engines have different amounts of lubricating oil. Simply adjust the height of the switch valve in the level holder. It is suitable for various models of diesel engines and has strong applicability.

[0025] 3. The level holder in the online oil replenishment device is connected to the lubricating oil replenishment tank by a level switch valve. The mechanical linkage structure is simple, mature and reliable, which can ensure the high reliability of the level holder, thereby ensuring the reliability and stability of the entire online oil replenishment device.

[0026] 4. When a diesel engine is running, the oil level in the oil pan will fluctuate. If oil is directly added to the oil pan, there may be unexpected situations such as oil leakage and oil contamination. However, the online oil replenishment device ensures the stability of the lubricating oil level in the oil pan by adding oil to the level holder. It indirectly measures the oil level in the oil pan and replenishes oil, which has better safety.

[0027] 5. The liquid level of the level holder is automatically controlled by the switching valve. The buoyancy generated by the float in the lubricating oil causes the linkage rod to move. The linkage rod, through the rocker arm, drives the valve body to change, thereby opening and closing the switching valve and automatically realizing the oil replenishment operation. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2This is a schematic diagram of the structure of the oil pan of this utility model.

[0030] Figure 3 This is a schematic diagram of the liquid level maintainer of this utility model.

[0031] Figure 4 This is a schematic diagram of the structure of the lubricating oil replenishment tank of this utility model.

[0032] Figure 5 This is a schematic diagram (cross-sectional view) of the installation of the switch valve of this utility model.

[0033] Among them: 1. Oil pan;

[0034] 2. Stopper No. 1;

[0035] 3. Lubricating oil dipstick;

[0036] 4. No. 2 stopper;

[0037] 5. Ball valve No. 1;

[0038] 6. Pipeline No. 1;

[0039] 7. Liquid level holder;

[0040] 8. Level gauge;

[0041] 9. Float;

[0042] 10. Switch valve;

[0043] 11. Connect the fuel tank;

[0044] 12. Pipeline No. 2;

[0045] 13. Lubricating oil replenishment tank;

[0046] 14. No. 3 stopper;

[0047] 15. Ball valve No. 2;

[0048] 16. Magnetic float level gauge;

[0049] 17. Pipe cap;

[0050] 1001. Connecting rod;

[0051] 1002. Lock nut;

[0052] 1003, Joystick;

[0053] 1004, Pin;

[0054] 1005, Valve core;

[0055] 1006. Sealing gasket;

[0056] 1007. Valve body;

[0057] 1008. Valve seat;

[0058] 1009. Support frame. Detailed Implementation

[0059] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0060] like Figures 1-5 As shown, the dedicated online lubrication oil replenishment device for diesel generator sets in this embodiment includes an oil pan 1, a level maintainer 7, and a lubrication oil replenishment tank 13 arranged at intervals. The oil pan 1 and the level maintainer 7 are connected by a first pipeline 6, on which a first ball valve 5 is installed. The level maintainer 7 and the lubrication oil replenishment tank 13 are connected by a second pipeline 12, on which a second ball valve 15 is installed. A float 9 is installed inside the level maintainer 7, and the float 9 is connected to a switching valve 10, which is connected to the second pipeline 12.

[0061] The structure of the switch valve 10 is as follows: it includes a horizontally arranged convex-shaped valve seat 1008, and a valve body 1007 is fitted on the left end of the valve seat 1008 through a rubber ring. The left end of the valve body 1007 is the water inlet, and the bottom end is the water outlet. The left end face of the valve seat 1008 is connected to the valve core 1005 through a sealing gasket 1006. A groove is provided below the valve core 1005. A support frame 1009 extends downward from the bottom surface of the valve body 1007. The support frame 1009 corresponds to the groove. A rocker arm 1003 is hinged to the support frame 1009 through a pin 1004. One end of the rocker arm 1003 extends into the groove. The other end of the rocker arm 1003 is fixedly installed with a connecting rod 1001 through a locking nut 1002. The head of the connecting rod 1001 is locked with the float ball 9.

[0062] The joystick 1003 has a right-angled structure.

[0063] The end of the joystick 1003 that extends into the groove has a rounded end structure.

[0064] The lower part of the rocker arm 1003 is arranged coaxially with the connecting rod 1001.

[0065] The lower part of the rocker arm 1003 moves together with the connecting rod 1001.

[0066] The internal structure of the level holder 7 includes a connecting oil tank 11 connected to the first pipeline 6, a level gauge 8 installed on the top surface of the connecting oil tank 11, and a float ball 9 arranged inside the connecting oil tank 11.

[0067] An inner oil gauge 3 is arranged inside the oil pan 1. A first stopper 2 is arranged on the top surface of the inner oil gauge 3 on the oil pan 1, and a second stopper 4 is arranged on one side of the oil pan 1.

[0068] The top surface of the lubricating oil replenishment tank 13 is equipped with a third plug 14.

[0069] A magnetic level gauge 16 is installed on the lubricating oil replenishment tank 13.

[0070] A cap 17 is installed at the bottom of the lubricating oil replenishment tank 13.

[0071] In actual work process:

[0072] Before operating the diesel generator set, the lubricating oil replenishment tank 13, level maintainer 7, and oil pan 1 are first installed and adjusted using relevant components. Then, an appropriate amount of lubricating oil is injected into the oil pan 1 and lubricating oil replenishment tank 13. Ball valves 5 and 15 are opened, so the liquid levels in the connecting oil tank 11 and oil pan 1 are the same. At this time, the float 9 and its mechanical structure float above the liquid level, and the switch valve 10 is in the closed state. When the diesel generator set is running, as the continuous operating time increases, some lubricating oil will be consumed, and the liquid levels in the oil pan 1 and connecting oil tank 11 will drop. At this time, the float 9, its connecting rod 1001, and the rocker arm 1003 will drop along with the liquid level in the connecting oil tank 11. The linkage works by having the end of the rocker arm 1003 in the groove of the valve core 1005, which pushes the valve core 1005 to move and gradually open the switch valve 10. The lubricating oil in the high-positioned lubricating oil replenishment tank 13 flows into the connecting oil tank 11 due to gravity. The liquid level in the connecting oil tank 11 and the liquid level in the oil pan 1 will rise synchronously. As the liquid level in the connecting oil tank 11 rises, the change in the liquid level of the float ball 9 and the actions of the connecting rod 1001 and the rocker arm 1003 work in the same way to gradually close the switch valve 10 until the liquid level in the connecting oil tank 11 and the liquid level in the oil pan 1 reach the appropriate position, at which point the switch valve 10 is completely closed. The entire system runs in this automatic cycle until the diesel generator set stops running.

[0073] During inspections, operators only need to record the level in the lubricating oil replenishment tank 13 using the magnetic level gauge 16. When the level in the lubricating oil replenishment tank 13 reaches a low value, lubricating oil is added to the tank. Throughout the entire operation, the level in the lubricating oil replenishment tank 13 remains essentially still, with no oil splashing or other issues, making it relatively safe.

[0074] The level holder 7 maintains the lubricating oil level in the oil pan 1. When the oil level drops, the float of the level holder 7 descends and opens the valve, allowing lubricating oil to flow from the external oil tank and into the oil pan 1 via the level holder 7. When the oil pan 1 reaches the appropriate level, the float of the level holder 7 rises, and the valve closes.

[0075] If oil replenishment is interrupted, the diesel engine will continue to run, inevitably consuming some lubricating oil. Since the level gauge 8 in the level holder 7 will transmit the lubricating oil level of the oil tank 11 to the monitoring system in real time, the monitoring system will issue an alarm signal when the level drops to the low level threshold.

[0076] This embodiment has a highly efficient and stable function: the online lubricating oil replenishment device can monitor the lubricating oil level in the oil pan 1 in real time, ensuring that the lubricating oil level is relatively stable, thereby ensuring that the diesel generator set can operate continuously, efficiently and stably.

[0077] This embodiment features a high degree of automation: the liquid level of the level holder 7 is automatically controlled by the switching valve 10. The buoyancy generated by the float ball 9 in the lubricating oil triggers the action of the linkage connecting rod 1001 and the rocker arm 1003, thereby opening and closing the switching valve 10 and automatically performing the oil replenishment operation.

[0078] This embodiment has a highly adaptable function: the height of the switch valve 10 in the level holder 7 is related to the design level of the oil pan 1. Different models of diesel engines have different amounts of lubricating oil. Only the height of the switch valve 10 in the level holder 7 needs to be adjusted, which is suitable for various models of diesel engines and has strong applicability.

[0079] This embodiment features high reliability: the level holder 7 in the online oil replenishment device is connected to the lubricating oil replenishment tank 13 by a level switch valve 10. The mechanical linkage structure is simple, mature, and reliable, which can ensure the high reliability of the level holder 7, thereby ensuring the reliability and stability of the entire online oil replenishment device.

[0080] This embodiment has a good safety function: When the diesel engine is running, the oil level in the oil pan 1 will fluctuate. If oil is directly added to the oil pan 1, it may cause unexpected situations such as oil leakage and oil contamination. However, the online oil replenishment device ensures the stability of the lubricating oil level in the oil pan 1 by replenishing oil to the level holder 7. It indirectly measures the oil level in the oil pan 1 and replenishes oil, which has better safety.

[0081] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A dedicated online lubrication oil replenishment device for diesel generator sets, characterized in that: The system includes an oil pan (1), a level holder (7), and a lubricating oil replenishment tank (13) arranged at intervals. The oil pan (1) and the level holder (7) are connected by a first pipeline (6), on which a first ball valve (5) is installed. The level holder (7) and the lubricating oil replenishment tank (13) are connected by a second pipeline (12), on which a second ball valve (15) is installed. A float (9) is installed inside the level holder (7), and the float (9) is connected to a switch valve (10), which is connected to the second pipeline (12). The structure of the on / off valve (10) is as follows: it includes a horizontally arranged convex-shaped valve seat (1008), the left end of which is fitted with a valve body (1007) via a rubber ring, the left end of which is the water inlet and the bottom end of which is the water outlet; the left end of the valve seat (1008) is connected to the valve core (1005) via a sealing gasket (1006), and a groove is provided below the valve core (1005) located in the valve body (1007). A support frame (1009) extends downward from the bottom surface. The support frame (1009) corresponds to the groove. A rocker arm (1003) is hinged below the support frame (1009) via a pin (1004). One end of the rocker arm (1003) extends into the groove. The other end of the rocker arm (1003) is fixedly installed with a connecting rod (1001) via a lock nut (1002). The head of the connecting rod (1001) is locked with the float (9).

2. The online lubrication oil replenishment device for diesel generator sets as described in claim 1, characterized in that: The rocker arm (1003) has a right-angled structure.

3. The online lubrication oil replenishment device for diesel generator sets as described in claim 1, characterized in that: The rocker arm (1003) has a rounded end structure at one end that extends into the groove.

4. The online lubrication oil replenishment device for diesel generator sets as described in claim 1, characterized in that: The lower part of the rocker arm (1003) is arranged coaxially with the connecting rod (1001).

5. The online lubrication oil replenishment device for diesel generator sets as described in claim 4, characterized in that: The lower part of the rocker arm (1003) moves together with the connecting rod (1001).

6. The online lubrication oil replenishment device for diesel generator sets as described in claim 1, characterized in that: The internal structure of the liquid level holder (7) is as follows: it includes a connecting oil tank (11) connected to the first pipeline (6), a liquid level gauge (8) is installed on the top surface of the connecting oil tank (11), and a float ball (9) is arranged inside the connecting oil tank (11).

7. The online lubrication oil replenishment device for diesel generator sets as described in claim 1, characterized in that: The oil pan (1) is equipped with an inner oil gauge (3), and a first stopper (2) is arranged on the top surface of the oil pan (1). A second stopper (4) is provided on one side of the oil pan (1).

8. The online lubrication oil replenishment device for diesel generator sets as described in claim 1, characterized in that: The top surface of the lubricating oil replenishment tank (13) is provided with a third plug (14).

9. The online lubrication oil replenishment device for diesel generator sets as described in claim 1, characterized in that: A magnetic level gauge (16) is installed on the lubricating oil replenishment tank (13).

10. The online lubrication oil replenishment device for diesel generator sets as described in claim 1, characterized in that: The bottom of the lubricating oil replenishment tank (13) is fitted with a pipe cap (17).

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