JP2007321679A - Lubricating oil refilling system and lubricating oil refilling method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable automatic refilling of lubricating oil to an oil reservoir tank without a worker and improve reliability and efficiency of lubricating oil refilling work. <P>SOLUTION: This system is provided with a refilling means 40 refilling lubricating oil to the oil reservoir tank 7 based on detection data detected by level sensors 1a, 1b detecting lubricating oil quantity in the oil reservoir tank 7. In an embodiment, the refilling means 40 includes a pump 2, electromagnetic refilling valves 3a, 3b, and a server 4. The server 4 outputs data for opening or closing a valve in an oil feed pipe 8 to electromagnetic refilling valves 3a, 3b based on detected data, and outputs data for starting or stopping feeding lubricating oil to the pump 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lubricating oil replenishing system and a lubricating oil replenishing method applicable to a lubricating oil replenishing system for a diesel power generating apparatus that replenishes lubricating oil in an oil reservoir tank that stores oil of the diesel power generating apparatus.

  Specifically, based on information obtained by detecting the amount of lubricating oil in the oil sump tank, a replenishing means for replenishing the oil sump tank with lubricating oil is provided, and the oil is automatically summed without any operator intervention. The tank can be replenished, and the efficiency and reliability of the lubricating oil replenishment work can be improved.

  Conventionally, when lubricating oil is supplied to the lubricating oil reservoir tank, an operator visually checks the oil level gauge provided in the lubricating oil reservoir tank and manually starts the pump to replenish the lubricating oil. It was. For example, the lubricating oil supply system 200 of the diesel power generator shown in FIG. 5 includes an oil level gauge, a pump, a supply valve, a lubricating oil supply amount setting device, an oil tank, an oil reservoir tank, and an oil feed pipe.

  The oil tank stores lubricating oil for smoothly operating the diesel power generator. The pump is installed in the vicinity of the oil tank through the oil feed pipe, and supplies the oil stored in the oil tank to the oil reservoir tank. The lubricating oil replenishment amount setting device is installed in the vicinity of the pump to set the lubricating oil replenishment amount. The replenishment valve is installed in the vicinity of the lubricating oil replenishment amount setting device, and opens and closes the valve through which the lubricating oil sent out by the pump flows. The oil level gauge is installed in the oil sump tank and measures the oil level of the oil sump tank.

  For example, if the operator visually checks the oil level gauge and determines that lubrication oil needs to be replenished, manually open the refill valve, set the lubrication oil replenishment amount with the lubrication oil replenishment amount setting device, and manually operate the pump. to start. When the set lubricant is supplied, the pump automatically stops. The operator checks the oil level gauge again. If the oil level gauge value is within the control value, close the refill valve, and if it is insufficient, reset the lubricating oil replenishment amount and start the pump manually. After the lubrication oil replenishment operation is completed, the operator records the lubrication oil replenishment amount for each oil reservoir tank. In summer, lubricating oil is replenished at least once a day for one diesel generator.

  Regarding such a conventional example, Patent Document 1 discloses a lubricating oil supply system. According to this lubricating oil supply system, when the total engine speed reaches the reference integrated number, the lubricating oil is supplied into the engine. As a result, it is possible to maintain the lubrication function for a long time by suppressing deterioration in engine quality due to deterioration of the lubricating oil.

JP-A-8-326519 (2nd page, FIG. 4)

  By the way, according to the conventional lubricating oil replenishment system 200 for a diesel generator, the operator visually checks the oil level gauge provided in the oil sump tank and manually starts the pump to replenish the lubricating oil. .

  For this reason, there is a possibility that human error such as excessive replenishment of lubricating oil may occur. Therefore, there is a possibility that the efficiency of the lubricating oil replenishment work is deteriorated or the reliability is lost. According to Patent Document 1, since the oil reservoir tank is not provided with means for replenishing the lubricating oil, it is difficult to automatically replenish the oil reservoir tank with the lubricating oil.

  Therefore, the present invention solves such a problem related to the conventional example, and enables the lubricating oil to be automatically supplied to the oil sump tank without the intervention of the operator, and the lubricating oil replenishing work can be performed. It is an object of the present invention to provide a lubricating oil replenishment system and a lubricating oil replenishment method capable of improving efficiency and reliability.

  In order to solve the above-described problem, the lubricating oil replenishment system according to claim 1 is a system for replenishing lubricating oil to a tank for storing oil, the detecting means for detecting the amount of lubricating oil in the tank, And a replenishing means for replenishing the tank with the lubricating oil based on detection information detected by the detecting means.

  According to the lubricating oil replenishing system of the present invention, the lubricating oil is replenished to the tank for storing the oil, and the detecting means detects the amount of lubricating oil in the tank. The replenishing means replenishes the tank with lubricating oil based on the detected information.

  For example, the replenishing means includes a sending means for sending lubricating oil to the tank via a predetermined oil feed pipe, an opening / closing means installed in the middle of the oil feed pipe, for opening and closing the outlet of the oil feed pipe, And control means for controlling the delivery means. The control means outputs information for opening or closing the flow opening to the opening / closing means based on the detection information, and starts or sends the lubricant to the delivery means. Output the information to be stopped. As a result, the lubricating oil can be automatically supplied to the oil sump tank without an operator.

  In order to solve the above-described problem, a lubricating oil replenishing method according to claim 6 is a method of replenishing lubricating oil to a tank for storing oil, the detecting step for detecting the amount of lubricating oil in the tank, And a replenishment step of replenishing the tank with the lubricating oil based on detection information detected by the detection step.

  According to the lubricating oil replenishing method of the present invention, the lubricating oil is replenished to the oil reservoir tank, and the lubricating oil can be automatically replenished to the oil reservoir tank without intervention of an operator. As a result, the efficiency and reliability of the lubricating oil supply operation can be improved.

  According to the lubricating oil replenishing system and the lubricating oil replenishing method according to the present invention, the lubricating oil is replenished to the tank for storing the oil, and based on the information detected by the detecting means for detecting the lubricating oil amount in the tank. And a supply means for supplying lubricating oil to the tank.

  With this configuration, lubricating oil can be automatically supplied to the oil sump tank without an operator being involved. Therefore, the efficiency and reliability of the lubricating oil replenishment work can be improved. The present invention can be sufficiently applied to a lubricating oil replenishment system for diesel generators.

  Subsequently, an embodiment of the lubricating oil replenishing system and the lubricating oil replenishing method according to the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic diagram showing a configuration example of a lubricating oil replenishment system 100 for a diesel power generator as an embodiment according to the present invention. 1 includes a first level sensor 1a, a second level sensor 1b, an integrating flow meter 5, an oil tank 6, an oil reservoir tank 7, an oil feed pipe 8, an oil level gauge 9, and The replenishing means 40 is configured. The supply means 40 includes a pump 2, a first electromagnetic supply valve 3 a, a second electromagnetic supply valve 3 b, and a server 4.

  The replenishing means 40 replenishes the oil reservoir tank 7 with the lubricating oil in the oil tank 6 based on the detection data detected by the level sensors 1a and 1b. As a result, the lubricating oil can be automatically supplied to the oil sump tank 7 without an operator intervening.

  The oil tank 6 stores lubricating oil for performing lubrication, cooling, cleaning, and oxidation prevention of the diesel power generation apparatus 20. For example, the lubricating oil is stored in the oil tank 6 using a tank lorry or the like.

  The pump 2 is an example of a delivery unit, and is installed in the vicinity of the oil tank 6 through the oil feed pipe 8, and sends the lubricating oil in the oil tank 6 to the oil reservoir tank 7 through the oil feed pipe 8. For example, the start or stop of the sending of the lubricating oil is determined by the server 4, and the pump 2 receives the data determined by the server 4 and starts or stops the sending of the lubricating oil. Specifically, when the pump 2 receives start data for sending lubricant from the server 4, the pump 2 starts sending lubricant, and when it receives stop data for sending lubricant from the server 4, the pump 2 sends out lubricant. Stop.

  The lubricating oil supplied to the oil reservoir tank 7 is supplied to the diesel power generator 20 by a pump (not shown). The supplied lubricating oil circulates in the power generation device and performs lubrication, cooling, cleaning, oxidation prevention, and the like on the diesel power generation device 20. A lubricating oil cleaner 21 is connected to the oil reservoir tank 7, and the lubricating oil cleaner 21 cleans the used lubricating oil in the oil reservoir tank 7. The oil sump tank 7 is provided for each diesel power generator 20, and each oil sump tank 7 is provided with an oil level gauge 9, level sensors 1a, 1b, and electromagnetic replenishing valves 3a, 3b.

  The level sensors 1a and 1b are an example of detection means, and are installed in the oil reservoir tank 7 to detect the amount of lubricating oil in the oil reservoir tank 7. The detected lubricating oil amount data is output to the server 4. For example, a reed switch type level sensor is used for the level sensors 1a and 1b. The level sensors 1a and 1b include a float 33 (shown in FIG. 3) that floats and sinks according to the liquid level, and a rod-like stem 30 (shown in FIG. 3) for the float 33 to move up and down. A magnet 36 is built in the float 33. A reed switch 35 is built in the stem 30. The level sensors 1a and 1b output signals by changing the resistance value by closing the reed switch 35 in the magnetic field of the magnet 36 as the float 33 moves up and down following the liquid level.

  The electromagnetic replenishing valves 3 a and 3 b are an example of opening / closing means, and are arranged side by side on the oil feed pipe 8 in the vicinity of the oil reservoir tank 7. The electromagnetic replenishing valves 3a and 3b open / close the valve of the oil feed pipe 8 upon receiving data for opening or closing the valve from the server 4. For example, when data for opening a valve is received from the server 4, the valve is opened. When data for closing the valve is received from the server 4, the valve is closed. As the electromagnetic replenishing valves 3a and 3b, for example, two-way direct acting electromagnetic valves are used. This two-way direct acting solenoid valve has two fluid inlets and outlets and opens and closes the valve directly by the electromagnetic force of the electromagnet. Level sensors 1 a and 1 b and electromagnetic replenishing valves 3 a and 3 b are provided for each oil reservoir tank 7.

  The integrating flow meter 5 is an example of a flow integrating unit, and is installed in the vicinity of the oil reservoir tank 7. The integrating flow meter 5 integrates the flow rate of the lubricating oil supplied to the oil sump tank 7 and outputs the flow rate data integrated for a predetermined period to the server 4. As the integrating flow meter 5, for example, an electronic oil flow meter is used. This electronic oil flow meter is a flow meter in which an electronic display counting unit is mounted on a measuring unit of a rotary piston type positive flow meter.

  The server 4 is an example of a control unit, and is installed in an electric power company, for example. A monitor 18 is connected to the server 4 via a DVI (Digital Visual Interface) cable (not shown). The server 4 is connected to the level sensors 1a and 1b, the pump 2, the electromagnetic replenishing valves 3a and 3b, the integrating flow meter 5, the oil level gauge 9, and the diesel power generator 20 through control lines, and the electromagnetic replenishing valves 3a and 3b and the pump. 2 is controlled. For example, the server 4 receives the detection data detected by the level sensors 1a and 1b, outputs data for opening or closing the valve through which the lubricating oil flows to the electromagnetic supply valves 3a and 3b based on the detection data, and Data for starting or stopping the delivery of lubricating oil to the pump 2 is output.

  Specifically, the level sensor 1a is set when the lubricating oil replenishment start oil level position in the oil reservoir tank 7 is the lower limit reference value and the lubricating oil replenishment stop oil surface position in the oil reservoir tank 7 is the upper limit reference value. When the amount of lubricating oil based on the detection data detected by 1b reaches the lower limit reference value, the server 4 outputs valve opening data to the electromagnetic replenishing valves 3a and 3b and starts sending the lubricating oil. When the lubricating oil amount based on the detected data reaches the upper limit reference value, the server 4 outputs data for stopping the sending of the lubricating oil to the pump 2, and the electromagnetic refill valve Data for closing the valve is output to 3a and 3b.

  In this embodiment, when the amount of lubricating oil based on the detection data detected by both level sensors 1a and 1b has reached the lower limit reference value, the server 4 sends to each electromagnetic replenishment valve 3a and 3b. A signal for opening the valve and outputting data for starting the delivery of the lubricating oil to the pump 2, and a reference for the upper limit of the lubricating oil amount based on the detection data detected by one of the level sensors 1a and 1b. When the value is reached, the server 4 outputs data for stopping the sending of the lubricating oil to the pump 2 and outputs data for closing the valves to the electromagnetic replenishing valves 3a and 3b. Thus, the accuracy of lubricating oil replenishment can be improved by installing two level sensors and two electromagnetic replenishing valves for each oil reservoir tank 7.

  The server 4 receives data indicating whether the vehicle is operating or stopped from the diesel power generator 20. Since the lubricating oil is not consumed while the diesel power generation apparatus 20 is stopped, the server 4 controls the electromagnetic supply valves 3a and 3b so as to replenish the lubricating oil only during the operation of the diesel power generation apparatus 20. Further, immediately after the operation of the diesel power generation apparatus 20, the temperature of the lubricating oil in the oil reservoir tank is low, so that the lubricating oil level in the oil reservoir tank 7 temporarily decreases. Accordingly, after a certain time has elapsed after the operation, the detection data of the level sensors 1a and 1b are received and determined.

  The oil level gauge 9 is installed on the upper surface of the oil reservoir tank 7 and outputs data on the amount of lubricating oil accumulated in the oil reservoir tank 7 to the server 4. The server 4 receives the lubricating oil amount data and outputs it to the monitor 18. The monitor 18 receives the display data of the lubricating oil amount and displays the lubricating oil amount on the screen. On the oil level gauge 9, a numerical value of the amount of lubricating oil visible is displayed on a display unit (not shown) of the oil level gauge 9. As a result, the operator can check the amount of lubricating oil in the oil reservoir tank 7 on the monitor 18 and can directly check the display portion of the oil level gauge 9 to check the amount of lubricating oil.

  FIG. 2 is a block diagram illustrating a configuration example of the control unit 10 of the server 4. The control unit 10 shown in FIG. 2 includes a CPU 11, a hard disk 12, a RAM 13, a CPU bus 14, an I / O port 15, an A / D converter 16, and a drive control unit 17. A monitor 18 and a buzzer 19 are connected to the CPU 11 via a CPU bus 14.

  The I / O port 15 is connected to the level sensors 1a and 1b, the pump 2, the electromagnetic replenishing valves 3a and 3b, the integrating flow meter 5, the oil level meter 9, and the diesel power generator 20 via a control line.

  The A / D converter 16 is connected to the I / O port 15, and receives analog data from the level sensors 1 a and 1 b, the integrating flow meter 5, the oil level meter 9, and the diesel generator 20 via the I / O port 15. The digital data is converted to digital data, and the converted digital data is output to the CPU 11.

  The drive control unit 17 is connected to the CPU 11 via the CPU bus 14. The drive control unit 17 receives drive data for controlling the pump 2 and the electromagnetic replenishment valves 3a and 3b from the CPU 11, and controls to drive the pump 2 and the electromagnetic replenishment valves 3a and 3b based on the received drive data. To do.

  The hard disk 12 is connected to the CPU 11 via the CPU bus 14, and the hard disk 12 stores a control program for controlling the electromagnetic replenishment valves 3a and 3b and the pump 2 based on the detected data. Further, the flow rate data received from the integrating flow meter 5 is stored by the CPU 11. Thereby, the flow rate of the lubricating oil supplied to the oil reservoir tank 7 can be automatically recorded. The capacity of the hard disk 12 is about 100 GB and can be expanded.

  The RAM 13 is connected to the CPU 11 via the CPU bus 14, and the capacity of the RAM 13 is about 256 Mbytes. For example, a control program stored in the hard disk 12 is developed in the RAM 13 by the CPU 11.

  The CPU 11 is connected to the A / D converter 16 via the CPU bus 14 and is level-converted by the A / D converter 16 and includes level sensors 1a and 1b, an integrated flow meter 5, an oil level meter 9, and diesel power generation. The signal data of the device 20 is received. The CPU 11 is connected to the drive control unit 17 via the CPU bus 14, and outputs drive data for controlling the pump 2 and the electromagnetic supply valves 3 a and 3 b to the drive control unit 17.

  For example, the CPU 11 receives the detection data of the lubricating oil amount detected by the level sensors 1a and 1b, and outputs data for opening or closing the valve through which the lubricating oil flows based on the detection data to the drive control unit 17, and Then, data for starting or stopping the delivery of the lubricating oil is output to the drive control unit 17. The drive control unit 17 receives these data and controls to drive the pump 2 and the electromagnetic replenishing valves 3a and 3b.

  Specifically, the level sensor 1a is set when the lubricating oil replenishment start oil level position in the oil reservoir tank 7 is the lower limit reference value and the lubricating oil replenishment stop oil surface position in the oil reservoir tank 7 is the upper limit reference value. When the amount of lubricating oil based on the detection data detected by 1b reaches the lower limit reference value, the CPU 11 outputs data for opening the valve to the drive control unit 17, and this drive control unit 17 outputs this data to the electromagnetic Output to the replenishing valves 3a and 3b and control. Further, the CPU 11 outputs data for starting delivery of the lubricating oil to the drive control unit 17, and this drive control unit 17 outputs this data to the pump 2 for control.

  When the amount of lubricating oil based on the detected data reaches the upper limit reference value, the CPU 11 outputs data for stopping the sending of the lubricating oil to the drive control unit 17, and this drive control unit 17 sends this data to the pump 2. Output and control. Further, the CPU 11 outputs data for closing the valve to the drive control unit 17, and this drive control unit 17 outputs this data to the electromagnetic replenishing valves 3a and 3b for control.

  In this embodiment, when the amount of lubricating oil based on the detection data detected by both level sensors 1a and 1b has reached the lower limit reference value, the CPU 11 sends the data for opening the valve to the drive control unit 17. The drive controller 17 outputs the data to the electromagnetic replenishing valves 3a and 3b for control. Further, the CPU 11 outputs data for starting delivery of the lubricating oil to the drive control unit 17, and this drive control unit 17 outputs this data to the pump 2 for control.

  When the amount of lubricating oil based on the detection data detected by any one of the level sensors 1a and 1b reaches the upper limit reference value, the CPU 11 outputs data for stopping the sending of the lubricating oil to the drive control unit 17. The drive control unit 17 outputs this data to the pump 2 for control. Further, the CPU 11 outputs data for closing the valve to the drive control unit 17, and this drive control unit 17 outputs this data to the respective electromagnetic replenishing valves 3a and 3b for control. Thus, the accuracy of lubricating oil replenishment can be improved by installing two level sensors and two electromagnetic replenishing valves for each oil reservoir tank 7.

  Here, the electromagnetic replenishing valves 3 a and 3 b open the valve when receiving data for opening the valve from the drive control unit 17, and close the valve when receiving data for closing the valve from the drive control unit 17. The pump 2 starts sending the lubricating oil when receiving the data for starting sending the lubricating oil from the CPU 11, and stops sending the lubricating oil when receiving the data for stopping sending the lubricating oil from the drive control unit 17. To do.

  The CPU 11 receives data indicating whether the vehicle is operating or stopped from the diesel power generator 20. Since the lubricating oil is not consumed while the diesel power generation apparatus 20 is stopped, the CPU 11 controls the pump 2 and the electromagnetic supply valves 3a and 3b so as to replenish the lubricating oil only during the operation of the diesel power generation apparatus 20. Moreover, since the temperature of the lubricating oil is low immediately after the operation of the diesel power generator 20, the lubricating oil level in the oil reservoir tank 7 temporarily decreases. Accordingly, after a certain time has elapsed after the operation, the detection data of the level sensors 1a and 1b are received and determined.

  The oil level gauge 9 is installed in the oil reservoir tank 7, and outputs data on the amount of lubricating oil accumulated in the oil reservoir tank 7 to the CPU 11. The CPU 11 receives the lubricating oil amount data and outputs the lubricating oil amount display data to the monitor 18. The monitor 18 receives the display data of the lubricating oil amount and displays the lubricating oil amount on the screen. On the oil level gauge 9, a numerical value of the amount of lubricating oil visible is displayed on the display unit of the oil level gauge 9. As a result, the operator can check the amount of lubricating oil in the oil reservoir tank 7 on the monitor 18 and can directly check the display portion of the oil level gauge 9 to check the amount of lubricating oil.

  The buzzer 19 operates when an abnormality occurs in the pump 2 and the electromagnetic replenishing valves 3a and 3b. For example, when the CPU 11 outputs data for stopping the pump 2 to the pump 2, if there is no pump stop response from the pump 2, the CPU 11 controls the buzzer 19 to output a warning sound. Thereby, damage due to malfunction of the pump 2 can be minimized. Similarly, the CPU 11 controls to output a warning sound to the electromagnetic replenishing valves 3a and 3b.

  FIGS. 3A and 3B are perspective views showing a configuration example of the level sensors 1a and 1b. Level sensors 1 a and 1 b shown in FIGS. 3A and 3B include a stem 30, a terminal BOX 31, a mounting hardware 32, and a float 33. The level sensor 1a shown in FIG. 3A has the float 33 positioned at the upper limit value of the lubricating oil amount, and the level sensor 1b shown in FIG. 3B has the float 33 positioned at the lower limit value of the lubricating oil amount. Yes.

  The stem 30 is a rod-shaped member made of stainless steel. A terminal BOX 31 is attached to one end of the stem 30, and an attachment metal 32 is attached to a lower position of the terminal BOX 31 with a cap nut 37, and a float 33 is movably attached to the lower position of the attachment metal 32. The float 33 floats and sinks depending on the liquid level.

  The stem 30 includes a first stopper 34a, a second stopper 34b, and a reed switch 35. The stopper 34a is attached to the uppermost end portion of the stem 30 where the float 33 moves upward, and the stopper 34b is attached to the lowermost end portion of the stem 30 where the float 33 moves downward. Thereby, the movement range of the float 33 is limited, and the float 33 can be prevented from falling off the stem 30 or colliding with the mounting hardware 32. The reed switch 35 is arranged between the stopper 34 a and the stopper 34 b, and about four reed switches 35 are built in the stem 30. Note that the number of reed switches 35 is not limited to four, and may be increased or decreased according to use conditions. About two magnets 36 are built in the float 33.

  The level sensors 1 a and 1 b are inserted into the through holes of the oil sump tank 7 from the tip end portion of the stem 30, and are secured and fixed by the attachment hardware 32. One end of the control line is connected to the conduit 38 of the terminal BOX 31 of the fixed level sensor 1a, 1b. The other end of the connected control line is connected to the server 4.

  In the level sensors 1a and 1b, when the float 33 moves up and down following the lubricating oil level, the reed switch 35 in the magnetic field of the magnet 36 is closed to change the resistance value and output a signal to the server 4. To do. The CPU 11 of the server 4 that has received the signal determines which one of the four reed switches 35 is the signal from the reed switch 35 and controls the electromagnetic replenishing valves 3 a and 3 b and the pump 2.

  For example, when the reed switch 35 arranged at the bottom is the lower limit reference value and the reed switch 35 arranged at the uppermost is the upper reference value, the magnets 36 in the floats 33 of the level sensors 1a and 1b When the lowermost reed switch 35 is closed, the CPU 11 receives a signal whose resistance value has been changed and determines that the signal is from the lowermost reed switch 35. After the determination, data for opening the valve is output to the drive control unit 17, and further, data for starting replenishment of lubricating oil is output to the drive control unit 17. The drive control unit 17 receives these data and controls to open the electromagnetic replenishing valves 3a and 3b and start the pump 2.

  When the magnet 36 in the float 33 of the level sensor 1a or the level sensor 1b closes the uppermost reed switch 35, the CPU 11 receives the signal and determines that the signal is from the uppermost reed switch 35. After the determination, data for stopping the replenishment of lubricating oil is output to the drive control unit 17, and further, data for closing the valve is output to the drive control unit 17. The drive control unit 17 receives these data and controls to stop the pump 2 and close the electromagnetic supply valves 3a and 3b. As a result, the lubricating oil can be automatically supplied to the oil sump tank 7 without an operator intervening.

  FIG. 4 is a flowchart showing an operation example of the lubricating oil supply system 100. The lubricating oil is stored in the oil tank 6 using a tank lorry or the like. The hard disk 12 of the server 4 stores a control program for controlling the electromagnetic replenishing valves 3a and 3b and the pump 2, and the control program is activated and expanded in the RAM 13.

  In step S1 shown in FIG. 4 as conditions for replenishing the oil reservoir tank 7 with these, the CPU 11 of the server 4 determines whether the diesel power generator 20 is operating or stopped. Since the lubricating oil is not consumed when the diesel generator 20 is stopped, the CPU 11 replenishes the oil reservoir tank 7 with the lubricating oil only during operation. When the vehicle is stopped, it is determined again whether the vehicle is operating or stopped. If it is in operation, the process proceeds to step S2.

  In step S <b> 2, the CPU 11 determines whether a certain time has elapsed after the operation of the diesel power generator 20. Immediately after operation, since the temperature of the lubricating oil is low, the lubricating oil level in the oil sump tank 7 temporarily decreases. Therefore, for example, the CPU 11 receives the detection data of the level sensors 1a and 1b after 1 to 2 hours have elapsed after the operation. If the fixed time has not passed, it is determined again whether the fixed time has passed. If the predetermined time has elapsed, the process proceeds to step S3.

  In step S3, the amount of lubricating oil in the oil reservoir tank 7 is detected. For example, when the oil supply start oil level position in the oil sump tank 7 is the lower limit reference value and the oil supply stop oil level position in the oil sump tank 7 is the upper limit reference value, the level sensors 1a and 1b The CPU 11 determines whether the amount of lubricating oil based on the detected detection data has reached the lower limit reference value. When the amount of lubricating oil based on each detection data has not reached the lower limit reference value, it is determined again whether the amount of lubricating oil has reached the lower limit reference value. If the amount of lubricating oil based on each detection data has reached the lower limit reference value, the process proceeds to step S4.

  In step S <b> 4, the CPU 11 outputs data for opening the valve to the drive control unit 17. The drive control unit 17 receives this data and outputs electromagnetic valve drive data to the electromagnetic replenishing valves 3a and 3b. The electromagnetic supply valves 3a and 3b that have received the electromagnetic valve drive data open the valves. Subsequently, the process proceeds to step S5.

  In step S5, lubricating oil is sent to the oil reservoir tank 7 based on the detected data detected. For example, the CPU 11 outputs data for starting the supply of lubricating oil to the drive control unit 17. The drive control unit 17 receives this data and outputs pump drive data to the pump 2. The pump 2 that has received the pump drive data starts replenishment of lubricating oil. Subsequently, the process proceeds to step S6.

  In step S6, the CPU 11 receives each detection data detected by the level sensors 1a and 1b, and determines whether the lubricating oil amount based on one of the detection data is the upper limit value of the lubricating oil amount in the oil sump tank 7. To do. If the lubricating oil amount based on any detected data is not the upper limit value, it is determined again whether the lubricating oil amount has reached the upper limit reference value. When the amount of lubricating oil based on any detection data has reached the upper limit reference value, the process proceeds to step S7.

  In step S7, the pump 2 is stopped. For example, the CPU 11 outputs data for stopping the delivery of the lubricating oil to the drive control unit 17. The drive control unit 17 receives this data and outputs pump stop data to the pump 2. The pump 2 receives the pump stop data and stops the lubrication oil supply. Subsequently, the process proceeds to step S8.

  In step S8, the electromagnetic supply valves 3a and 3b are closed. For example, the CPU 11 outputs data for closing the valve to the drive control unit 17. The drive control unit 17 receives this data and outputs electromagnetic valve drive data to the electromagnetic replenishing valves 3a and 3b. The electromagnetic replenishing valves 3a and 3b receive the electromagnetic valve driving data and close the valves through which the lubricating oil flows.

  As described above, according to the lubricating oil replenishing system 100 and the lubricating oil replenishing method thereof of the diesel power generator according to the present invention, the oil reservoir tank 7 for replenishing the lubricating oil can be replenished with the oil reservoir tank. 7 is provided with replenishing means 40 for replenishing the oil reservoir tank 7 with the lubricating oil based on the detection data detected by the level sensors 1a and 1b for detecting the amount of the lubricating oil at 7.

  In this example, the replenishing means 40 includes a pump 2, electromagnetic replenishing valves 3a, 3b, and a server 4. The server 4 connects the valve of the oil feed pipe 8 to the electromagnetic replenishing valves 3a, 3b based on the detected data. Data for opening or closing is output, and data for starting or stopping the delivery of lubricating oil to the pump 2 is output. As a result, the lubricating oil can be automatically supplied to the oil sump tank 7 without an operator intervening. Therefore, the efficiency and reliability of the lubricating oil replenishment work can be improved.

  INDUSTRIAL APPLICABILITY The present invention is suitably applied to a lubricating oil replenishing system for a diesel power generating device that replenishes lubricating oil to a tank that stores the lubricating oil for the diesel power generating device.

It is the schematic which shows the structural example of the lubricating oil replenishment system 100 of the diesel generator as an Example which concerns on this invention. 3 is a block diagram illustrating a configuration example of a control unit 10 of a server 4. FIG. (A) And (b) is a perspective view which shows the structural example of level sensor 1a, 1b. 5 is a flowchart illustrating an operation example of the lubricating oil supply system 100. It is the schematic which shows the structural example of the lubricating oil replenishment system 200 of the diesel generator as a prior art example.

Explanation of symbols

1a First level sensor (detection means)
1b Second level sensor (detection means)
2 Pump (delivery means)
3a First electromagnetic replenishment valve (opening / closing means)
3b Second electromagnetic replenishment valve (opening / closing means)
4 server (control means)
5 Integrated flow meter (Flow integration means)
7 Oil reservoir tank 11 CPU
40 Supply means 100 Diesel generator lubrication system

Claims (7)

A system for replenishing an oil reservoir tank that collects lubricating oil,
Detecting means for detecting the amount of lubricating oil in the tank;
A lubricating oil replenishing system comprising: a replenishing means for replenishing the tank with the lubricating oil based on detection information detected by the detecting means. The replenishing means is
Sending means for sending the lubricating oil to the tank via a predetermined oil feed pipe;
Opening and closing means that is installed in the middle of the oil feed pipe and opens and closes the outlet of the oil feed pipe
Control means for controlling the opening and closing means and the delivery means,
The control means includes
Receiving the detection information detected by the detection means;
2. The information for opening or closing the flow port is output to the opening / closing means based on the detection information, and the information for starting or stopping the sending of the lubricating oil is output to the sending means. The lubricating oil supply system described in 1. When the lubricating oil replenishment start oil level position in the tank is the lower limit reference value, and the lubricating oil replenishment stop oil level position in the tank is the upper limit reference value,
When the amount of lubricating oil based on the detection information detected by the detection means reaches the lower limit reference value,
The control means includes
Outputs information to open the flow port to the opening and closing means, and outputs information to start sending the lubricating oil to the sending means,
When the amount of lubricating oil based on the detection information has reached the upper limit reference value,
The control means includes
3. The lubricating oil replenishing system according to claim 2, wherein information for stopping the replenishment of the lubricating oil is output to the sending means, and information for closing the flow port is output to the opening / closing means. Two detection means and two opening / closing means are provided for each tank.
When the amount of lubricating oil based on the detection information detected by both of the detection means both reaches the lower limit reference value,
The control means includes
Output information for opening the flow outlet to each of the opening and closing means, and output information for starting the replenishment of the lubricating oil to the sending means,
When the amount of lubricating oil based on the detection information detected by any one of the detecting means reaches the upper limit reference value,
The control means includes
4. The lubricating oil replenishing system according to claim 3, wherein information for stopping the replenishment of the lubricating oil is output to the sending means, and information for closing the flow port is output to each of the opening / closing means. Installed in the vicinity of the tank, comprising flow rate integration means for integrating the flow rate of the lubricating oil replenished to the tank,
The flow rate integrating means is
3. The lubricating oil replenishing system according to claim 2, wherein flow rate information integrated for a predetermined period is output to the control means. A method of supplying lubricating oil to a tank for storing oil,
A detection step of detecting the amount of lubricating oil in the tank;
And a replenishment step of replenishing the tank with the lubricant based on the detection information detected by the detection step. Receiving the detection information detected by the detection step;
The lubricating oil according to claim 6, wherein, based on the received detection information, an outlet of an oil feeding pipe through which the lubricating oil flows is opened or closed, and replenishment of the lubricating oil is started or stopped. Supply method.

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