Oil monitoring system

Abstract

The utility model discloses an oil liquid monitoring system which comprises an oil return header pipe and an online oil liquid monitoring device arranged on the oil return header pipe, the online oil liquid monitoring device is connected with a PLC and an upper computer monitoring system, and the oil return header pipe transmits lubricating oil to an oil tank. The online oil monitoring device monitors oil quality detection data of lubricating oil in the oil return header pipe in real time and analyzes the oil quality detection data in real time, the PLC sends the oil quality detection data to the touch screen to be displayed, the upper computer monitoring system stores the oil quality detection data and displays historical oil quality detection data, and the upper computer monitoring system sends the historical oil quality detection data to the oil return header pipe. The lubricating oil quality of the thin oil station can be monitored online in real time and recorded and stored to form historical data for trend analysis, then the oil quality change trend is mastered in time, replacement is carried out in time when it is found that the oil quality does not meet the requirement, a main speed reducer is prevented from being damaged due to lubrication failure, and safe and stable operation of equipment is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of reducer lubrication, and more particularly, to an oil monitoring system. Background Art

[0002] The ship chamber of the Xiangjiaba ship lift operates with a fully balanced gear climbing type first-level vertical ship lift. The maximum lifting height is 114.2 meters, the lifting speed of the ship chamber is 12 m / min, the average annual working days are 33 days, and the daily operation time is 22 hours. The operation of the ship chamber of the ship lift is driven dispersedly by four drive units arranged at the four corners of the ship chamber, and climbs along the rack installed on the concrete tower column through the open pinion installed on the ship chamber structure to realize the vertical lifting movement of the ship chamber.

[0003] Each set of drive system is equipped with an external thin oil lubrication device to force-lubricate the main reducer and the bevel gear box. One end of the main reducer is connected to the drive motor, and the other end is connected to the drive pinion through a universal shaft. The main reducer has a large working load and high internal gear matching accuracy, and has high requirements for the quality of the lubricating oil. The quality of the lubricating oil directly affects the safe and stable operation of the main reducer.

[0004] The thin oil lubrication station of the ship lift is installed in an open environment, and the lubricating oil is easily emulsified and deteriorated. And the lubricating oil needs to be heated to about 40°C for the lubrication station to work normally. The oil is easily carbonized and deteriorated after long-term high-temperature heating. The existing thin oil lubrication system of the ship lift does not monitor the quality of the lubricating oil. If the lubricating oil deteriorates and the lubrication effect decreases, it will cause damage to the main reducer and result in serious equipment failures. Utility Model Content

[0005] The purpose of this application is to provide an oil monitoring system to overcome the existing technical defects. The system can monitor the quality of the lubricating oil in the thin oil station in real time and online, record and store it to form historical data for trend analysis, and then timely grasp the trend of oil quality change. When it is found that the oil quality does not meet the requirements, it is replaced in time to avoid damage to the main reducer due to lubrication failure and ensure the safe and stable operation of the equipment.

[0006] The purpose of this application is achieved through the following technical solutions:

[0007] In a first aspect, this application provides an oil monitoring system, which includes an oil return main pipe and an online oil monitoring device arranged on the oil return main pipe. The online oil monitoring device is respectively connected to a PLC controller and a host computer monitoring system;

[0008] The oil return main pipe is used to transfer the lubricating oil to the oil tank;

[0009] The online oil monitoring device is used to monitor the oil quality detection data of the lubricating oil in the oil return main pipe in real time and analyze the oil quality detection data in real time;

[0010] A PLC controller for sending oil quality detection data to a touch screen for display;

[0011] A host computer monitoring system for storing oil quality detection data and displaying historical oil quality detection data.

[0012] In a possible implementation, the oil quality detection data includes oil fluid data, oil fluid status, and oil fluid quality.

[0013] In a possible implementation, the PLC controller is further configured to execute an oil fluid quality judgment program and issue an alarm signal when the oil quality detection data exceeds a preset threshold.

[0014] In a possible implementation, the system further includes a fuel tank connected to the return oil main pipe, an oil pump connected to the fuel tank, and a duplex filter connected to the oil pump, and the output of the duplex filter returns to the fuel tank;

[0015] An oil pump for sending the lubricating oil in the fuel tank to the duplex filter;

[0016] A duplex filter for screening and intercepting particles in the lubricating oil and sending the screened lubricating oil back to the fuel tank.

[0017] In a possible implementation, the system further includes an inlet pipe and an outlet pipe, and one end of the inlet pipe and one end of the outlet pipe are respectively fixedly connected to the return oil main pipe through two oil passage through holes.

[0018] In a possible implementation, the on-line oil fluid monitoring device includes a metal wear particle sensor, a quality detection sensor, a moisture detection sensor, and an oil pressure detector.

[0019] In a possible implementation, an electric conical valve of the return oil main pipe is provided between the duplex filter and the reducer for enabling the lubricating oil to circulate inside the fuel tank when a preset temperature is reached.

[0020] In a possible implementation, the oil pump is an electric gear pump.

[0021] In a possible implementation, the PLC controller adopts an S7-200 series module.

[0022] In a possible implementation, the system further includes an alarm lamp and a buzzer connected to the PLC controller.

[0023] The main solution of the present application and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and claimed in the present application; and in the present application, (each non-conflicting alternative) alternatives can be freely combined with each other and with other alternatives. Those skilled in the art can understand that there are various combinations based on the prior art and common general knowledge after understanding the solution of the present application, and all of them are the technical solutions to be protected by the present application, and will not be enumerated here.

[0024] The present application discloses an oil fluid monitoring system, which includes an oil return main pipe and an on-line oil fluid monitoring device arranged on the oil return main pipe. The on-line oil fluid monitoring device is respectively connected to a PLC controller and an upper computer monitoring system. The oil return main pipe transmits lubricating oil to the oil tank. The on-line oil fluid monitoring device monitors the oil quality detection data of the lubricating oil in the oil return main pipe in real time, and analyzes the oil quality detection data in real time. The PLC controller sends the oil quality detection data to a touch screen for display. The upper computer monitoring system stores the oil quality detection data and displays the historical oil quality detection data. The present application can monitor the oil quality of the lubricating oil in the thin oil station in real time online, record and store it to form historical data for trend analysis, and then timely master the trend of oil quality change. When it is found that the oil quality does not meet the requirements, it can be replaced in time to avoid damage to the main reducer due to lubrication failure and ensure the safe and stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. shows a structural schematic diagram of an oil fluid monitoring system proposed in an embodiment of the present application.

[0026] Reference numerals: 1 - oil tank; 2 - oil pump; 3 - double-barrel filter; 4 - oil return main pipe; 5 - on-line oil fluid monitoring device; 6 - electric conical valve of oil return main pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following specific examples illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0028] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0029] In the prior art, since the ship lift oil lubrication station is installed in an open environment, the lubricating oil is prone to emulsification and deterioration, and the lubricating oil needs to be heated to about 40°C for normal operation of the lubricating station. The lubricating oil is prone to carbonization and deterioration after long-term high-temperature heating. The current ship lift oil lubrication system does not monitor the quality of the lubricating oil. If the lubricating oil deteriorates and the lubrication effect decreases, it will cause damage to the main reducer and cause serious equipment failure.

[0030] Therefore, in order to solve the above-mentioned problems, an embodiment of the present application proposes an oil monitoring system, which can monitor the oil quality of the lubricating oil in the thin oil station in real time online, and record and store historical data for trend analysis, so as to timely grasp the oil quality change trend. When it is found that the oil quality does not meet the requirements, it is replaced in time to avoid damage to the main reducer due to lubrication failure, thereby ensuring safe and stable operation of the equipment. It is described in detail below.

[0031] Please refer to Figure 1 , Figure 1 The structure diagram of an oil monitoring system proposed in an embodiment of the present application is shown, the system comprises an oil return main pipe 4, an online oil monitoring device 5 arranged on the oil return main pipe 4, and the online oil monitoring device 5 is connected to a PLC controller and a host computer monitoring system respectively;

[0032] An oil return main pipe 4 is used to transfer lubricating oil to the oil tank 1;

[0033] The online oil monitoring device 5 is used to monitor the oil quality detection data of the lubricating oil in the oil return main pipe 4 in real time and to analyze the oil quality detection data in real time;

[0034] PLC controller, used to send oil quality test data to the touch screen display;

[0035] The upper computer monitoring system is used to store oil quality test data and display historical oil quality test data.

[0036] The oil comes out from the oil return port connected to the reducer. The two oil return ports meet in an oil return main pipe 4 through two valves DN50 and DN100 respectively, and the lubricating oil is transmitted to the oil tank 1. The online oil monitoring device 5 is installed on the oil return main pipe 4.

[0037] In a possible implementation, the system further includes an oil inlet pipe and an oil outlet pipe, and one end of the oil inlet pipe and one end of the oil outlet pipe are fixedly connected to the oil return main pipe 4 through two oil passage holes, respectively.

[0038] Two oil pipes are led out from the oil return main pipe 4 and are respectively connected to the oil inlet and oil return port of the online oil monitoring device 5 to detect the oil return state of the reducer in real time and perform online real-time analysis of the oil.

[0039] In a possible implementation, the PLC controller uses S7-200 series modules.

[0040] The oil monitoring device communicates with the PLC controller and displays the oil inspection information on the touch screen. The advantages of using S7-200 series modules are good equipment stability, strong compatibility, easy maintenance, wide application range, high automation level. All running operations of the equipment can be achieved through the touch screen, greatly reducing the labor intensity of the operators. And the operation is convenient, with strong real-time performance and high reliability.

[0041] In a possible implementation, the PLC controller is also used to execute an oil quality judgment program, and issue an alarm signal when the oil quality detection data exceeds the preset threshold.

[0042] The staff writes an oil quality judgment program in the PLC controller, and issues an alarm signal when a certain oil quality detection data of the oil exceeds the standard during the execution of the program.

[0043] In a possible implementation, the system further includes an alarm lamp and a buzzer connected to the PLC controller.

[0044] When a certain oil quality detection data of the oil exceeds the standard, the information is fed back to the PLC for signal processing. The PLC then controls the touch screen to display that there is an abnormality in the return main pipe 4, and at the same time the alarm lamp and the buzzer respectively emit light and sound prompts. The staff learns that there is an abnormality in the corresponding inlet pipeline through the above alarm function, and then repairs and processes it in time. After the repair of the corresponding inlet pipeline is completed, the lubricating oil flows normally, and the flow sensor synchronously feeds back the detection information to the PLC. The alarm lamp and the buzzer stop alarming, and the touch screen stops displaying the interruption of the oil flow in this path. The on-line oil monitoring device 5 continues to detect the interruption of the oil flow in all pipelines.

[0045] In a possible implementation, the on-line oil monitoring device 5 includes a metal wear particle sensor, a quality detection sensor, a moisture detection sensor and an oil pressure detector.

[0046] In specific applications, the metal wear particle sensor, quality detection sensor, moisture detection sensor and oil pressure detector in the oil detector will respectively detect the size and quantity of ferrite particles and non-ferrite particles in the oil, the dielectric constant and kinematic viscosity of the oil, the content of micro water or free water in the oil, and the pressure in the oil, and transmit the monitored data to the PLC controller for integration.

[0047] In a possible implementation, the oil quality detection data includes oil data, oil state and oil quality.

[0048] In a possible implementation, the system further includes a fuel tank 1 connected to the oil return main pipe 4, an oil pump 2 connected to the fuel tank 1, and a duplex filter 3 connected to the oil pump 2. The output of the duplex filter 3 returns to the fuel tank 1.

[0049] The oil pump 2 is used to send the lubricating oil in the fuel tank 1 into the duplex filter 3.

[0050] The duplex filter 3 is used to screen and intercept the particles in the lubricating oil and send the filtered lubricating oil to the fuel tank 1.

[0051] Preferably, the oil pump 2 is an electric gear pump.

[0052] The upper computer monitoring system can receive and store the oil quality detection data through the ship lift network, can query the historical data curve on the client side for trend analysis, and alarm for abnormal conditions.

[0053] In a possible implementation, an oil return main pipe electric cone valve 6 is arranged between the duplex filter 3 and the reducer, which is used to make the lubricating oil circulate inside the fuel tank 1 when the preset temperature is reached.

[0054] During the heating stage of the thin oil lubrication station, before the oil temperature reaches 32°C required for the operation of the reducer, the oil return main pipe electric cone valve is opened and the two-way branch electric cone valves are closed to make the oil circulate inside the fuel tank 1. When the oil temperature in the fuel tank 1 reaches 32°C, the oil return main pipe electric cone valve is closed and the electric cone valves of the main reduction gearbox and the bevel gearbox are opened. At this time, the main pump supplies oil to the reducer and the bevel gearbox.

[0055] In a feasible implementation, the specific working process of the oil monitoring system is as follows:

[0056] First, drill a hole at the bottom of the oil return main pipe, connect it to the oil inlet of the on-line oil monitoring device 5 with a oil pipe, and connect the oil return port of the on-line oil monitoring device 5 to the oil return port of the fuel tank 1 to perform real-time oil circulation detection and collect and analyze the main parameters: temperature, viscosity, moisture, particle size and other data.

[0057] Second, use a communication line to transmit the data collected by the on-line oil monitoring device 5 to the PLC controller, and display the oil data in real time on the touch screen configuration display interface of the PLC main control cabinet.

[0058] Third, write a PLC alarm program to compare the collected data and send an alarm when the set value is exceeded;

[0059] Fourth, configure the data acquisition function of the upper computer, upload the oil monitoring data to the upper computer server through the ring network, collect and record the data through the upper computer server software, and view and analyze the data curves of each item using the client program.

[0060] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0061] By installing an oil monitoring device to detect the content of abrasive particles, moisture, and viscosity in the oil in real time, introducing the detection data into the monitoring system to form an operation data curve, trend analysis of equipment wear and intelligent analysis of indicators such as the emulsification degree of the oil are carried out, enabling the industrial intelligence of the lubrication device, making equipment management lightweight, enabling real-time monitoring of equipment health, and ensuring long-term safe operation.

[0062] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An oil monitoring system, characterized in that: The system includes an oil return main pipe and an online oil monitoring device arranged on the oil return main pipe, wherein the online oil monitoring device is connected to a PLC controller and a host computer monitoring system respectively; An oil return manifold, used to transfer lubricating oil to the oil tank; Online oil monitoring device, used to monitor the oil quality test data of the lubricating oil in the oil return main pipe in real time, and to perform real-time analysis on the oil quality test data; PLC controller, used to send oil quality test data to the touch screen display; The upper computer monitoring system is used to store oil quality test data and display historical oil quality test data.

2. The oil monitoring system according to claim 1, characterized in that: Oil quality detection data includes oil data, oil status and oil quality.

3. The oil monitoring system according to claim 1, characterized in that: The PLC controller is also used to execute an oil quality judgment program and send out an alarm signal when the oil quality detection data exceeds a preset threshold.

4. The oil monitoring system according to claim 1, characterized in that: The system also includes an oil tank connected to the oil return main pipe, an oil pump connected to the oil tank, and a duplex filter connected to the oil pump, wherein the output of the duplex filter returns to the oil tank; An oil pump, used to send the lubricating oil in the oil tank to the duplex filter; The duplex filter is used to filter out particles in the lubricating oil and send the filtered lubricating oil to the oil tank.

5. The oil monitoring system according to claim 1, characterized in that: The system also includes an oil inlet pipe and an oil outlet pipe, one end of the oil inlet pipe and one end of the oil outlet pipe are fixedly connected to the oil return main pipe through two oil passage holes respectively.

6. The oil monitoring system according to claim 1, characterized in that: The online oil monitoring device includes a metal wear particle sensor, a quality detection sensor, a moisture detection sensor and an oil pressure detector.

7. The oil monitoring system according to claim 4, characterized in that: An electric conical valve of the oil return main pipe is arranged between the duplex filter and the reducer, so as to allow the lubricating oil to circulate internally in the oil tank when a preset temperature is reached.

8. The oil monitoring system according to claim 4, characterized in that: The oil pump is an electric gear pump.

9. The oil monitoring system according to claim 1, characterized in that: The PLC controller adopts S7-200 series modules.

10. The oil monitoring system according to claim 1, characterized in that: The system also includes an alarm light and a buzzer connected to the PLC controller.

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