CN113623525B - Lubrication system cleaning method based on pressure control - Google Patents
Lubrication system cleaning method based on pressure control Download PDFInfo
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- CN113623525B CN113623525B CN202110753665.XA CN202110753665A CN113623525B CN 113623525 B CN113623525 B CN 113623525B CN 202110753665 A CN202110753665 A CN 202110753665A CN 113623525 B CN113623525 B CN 113623525B
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- cleaning
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- lubricating system
- lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N33/00—Mechanical arrangements for cleaning lubricating equipment; Special racks or the like for use in draining lubricant from machine parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N33/00—Mechanical arrangements for cleaning lubricating equipment; Special racks or the like for use in draining lubricant from machine parts
- F16N2033/005—Flushing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to the field of lubrication system cleaning, in particular to a lubrication system cleaning method based on pressure control.A control unit compares the pressure value variable quantity output by a pressure sensor with a set value when a lubrication system works; the control unit judges whether the pressure value variable quantity reaches a set value or not, and if not, the lubricating system continues to operate; if the pressure value reaches the set value, the cleaning operation is started, and the control unit records the maximum pressure value of the lubricating system at the time and the pressure value of the lubricating system after cleaning. The invention starts and stops the cleaning equipment according to the pipeline pressure change condition of the lubricating system, thereby early warning and taking cleaning measures, thoroughly eliminating the blocking risk, effectively preventing the system from blocking and clearing the blocking risk, being beneficial to the stable operation of the system and better providing the lubricating service for the equipment. The method of the invention is simple to control and easy to realize.
Description
Technical Field
The invention relates to the field of lubrication system cleaning, in particular to a lubrication system cleaning method based on pressure control.
Background
In the prior art, the cleaning of the lubricating system is performed after the system is exploded or blocked, so that the lubricating system cannot work, even the whole system is replaced, and the loss is large.
For example, in the lubrication system of a wind turbine, the grease lubrication device is automatically switched on to inject a lubricant supplement when a fixed time interval is reached. When a lubrication system fault alarm occurs, the lubrication system stops working, and lubrication of a fan bearing is directly affected. Because of the operation mode and maintenance requirements of the fan, maintenance personnel cannot immediately perform system maintenance, and a fan bearing has to operate in the risk of insufficient lubrication, so that potential risks and faults are caused, and the stable operation of the fan is influenced.
The lubricating system of the fan is a mechanism which can give transient alarm, has no process detection, cannot give early warning, quickly relieves and even clears faults on the basis of the running condition of the distributor indicating rod.
At present, the maintenance of the lubricating system usually adopts a direct replacement method, which has high cost, takes long time and has great influence on the operation of equipment.
In summary, there is a gap in the prior art lubrication system cleaning scheme, and a solution is urgently needed.
Disclosure of Invention
The invention provides a lubrication system cleaning method based on pressure control, which can solve the problem that the lubrication system cannot be cleaned in the prior art.
The invention relates to a pressure control-based lubricating system cleaning method, which uses a cleaning system to clean a lubricating system, wherein the cleaning system is provided with a cleaning pump, a plurality of pressure sensors, a control unit and a connecting pipeline, the cleaning pump pumps cleaning liquid into the lubricating system through the connecting pipeline, the pressure sensors measure the pressure of pipelines at a lubricating grease pumping outlet of the lubricating pump of the lubricating system and each lubricating grease outlet of a distributor, and the cleaning method of the lubricating system comprises the following steps:
when the lubricating system works, the control unit compares the pressure value variable quantity output by the pressure sensor during two adjacent working with a set value;
the control unit judges whether the pressure value variable quantity reaches a set value or not, and if not, the lubricating system continues to operate;
if the pressure value reaches the set value, the cleaning operation is started, and the control unit records the maximum pressure value of the lubricating system at the time and the pressure value of the lubricating system after cleaning.
Further, the cleaning operation is started, wherein the control unit calculates the change of the pressure value measured by the pressure sensor, the cleaning system is started, and the cleaning system is stopped after the pipeline pressure of the lubricating system is reduced to a set value.
Further, the starting of the cleaning operation includes that the control unit monitors a pressure value measured by the pressure sensor, and calculates a pressure difference value when the lubricating system runs twice adjacent to each other, a running time of the cleaning system and a difference value between the running times of the two adjacent cleaning systems.
Further, the control unit calculates according to the difference between the running time of the two adjacent cleaning systems and the pressure difference between the two adjacent running times of the lubricating system and the correlation function of the grease denaturation performance curve, and provides a pressure change value of the lubricating system;
the control unit judges whether the pressure change value of the lubricating system reaches a set value of grease denaturation of the lubricating system, and if the pressure change value does not reach the set value, the lubricating system continues to operate; if the preset value is reached, an early warning operation is sent out.
The invention has the advantages that the cleaning device is controlled according to the pipeline pressure of the lubricating system, namely the cleaning device is started and stopped according to the pipeline pressure change condition of the lubricating system, the faster the pressure change value of the lubricating system is, the larger the blockage risk of the lubricating system is, and the cleaning device needs to operate and clean the pipeline of the lubricating system and the lubricating grease distribution device, and vice versa. The invention judges according to the pressure change value of the pipeline, thereby early warning and taking cleaning measures, thoroughly eliminating the blocking risk, effectively preventing the system from blocking and eliminating the blocking risk, being beneficial to the stable operation of the system and better providing lubrication service for equipment. The method of the invention is simple to control and easy to realize.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
As shown in fig. 1, a method for cleaning a lubrication system based on pressure control uses a cleaning system to clean the lubrication system, the cleaning system is provided with a cleaning pump, a plurality of pressure sensors, a control unit and a connecting pipeline, the cleaning pump pumps cleaning liquid into the lubrication system through the connecting pipeline, the pressure sensors measure the pressure of a lubricating grease pumping outlet of the lubrication pump of the lubrication system and the pressure of each lubricating grease outlet pipeline of a distributor, and a one-way valve is arranged between the lubrication system and the cleaning system to ensure that the cleaning liquid can only flow in the distributor of the lubrication system and can not enter the lubrication system pipelines. The cleaning method of the lubricating system comprises the following steps:
when the lubricating system works, the control unit compares the pressure value variable quantity output by the pressure sensor during two adjacent working with a set value;
the control unit judges whether the pressure value variable quantity reaches a set value or not, and if not, the lubricating system continues to operate;
if the pressure reaches the set value, the cleaning operation is started, and the control unit records the current maximum pressure value of the lubricating system and the pressure value of the lubricating system after cleaning.
And the cleaning starting operation comprises the steps that the control unit calculates the change of the pressure value measured by the pressure sensor, the cleaning system is started, and the cleaning system is stopped after the pipeline pressure of the lubricating system is reduced to a set value.
The cleaning starting operation comprises the steps that the control unit monitors the pressure value measured by the pressure sensor, and the control unit calculates the pressure difference value when the lubricating system runs twice adjacent to the lubricating system, the running time of the cleaning system and the difference value between the running time of the cleaning system twice adjacent to the lubricating system.
The control unit calculates according to the difference value of the running time of the two adjacent cleaning systems and the pressure difference value of the two adjacent running times of the lubricating system and the correlation function of the performance curve of the grease denaturation and provides a pressure change value of the lubricating system;
the control unit judges whether the pressure change value of the lubricating system reaches a set value of grease denaturation of the lubricating system, and if the pressure change value does not reach the set value, the lubricating system continues to operate; if the preset value is reached, an early warning operation is sent out.
The method comprises the following steps:
the lubricating system runs, the control unit reads the numerical value of the pressure sensor and calculates the pressure difference value obtained by two adjacent measurements;
the control unit judges whether the pressure difference value reaches a set value or not;
if the pressure difference value does not reach the set value, the cleaning system enters a standby state, and the lubricating system normally operates;
if the pressure difference value exceeds a set value, the cleaning system enters an operating state, a cleaning pump is started, cleaning liquid is pumped into the connecting pipeline, and the lubricating system starts to clean;
stopping the cleaning pump after the operation time of the cleaning system reaches the set time;
the lubricating system runs, the lubricating grease is replenished for two times, and the pressure difference value in the grease replenishing process for two times is calculated;
and if the set value is reached, the lubricating system normally runs after the cleaning is finished.
The blockage of the lubricating system cannot be early-warned and timely treated in advance, but the blockage of the lubricating system happens occasionally, so that adverse effects are caused to the operation of the bearing, the stable operation of equipment is directly influenced, and the response cannot be carried out according to the difference of the operation state of the lubricating system. The cleaning equipment is controlled according to the pipeline pressure of the lubricating system, namely the cleaning equipment is started and stopped according to the pipeline pressure change condition of the lubricating system, the faster the pressure change value of the lubricating system is, the higher the blockage risk of the lubricating system is, and the cleaning equipment needs to operate and clean the pipeline of the lubricating system and the lubricating grease distribution device, and vice versa. The invention judges whether the system needs to be cleaned or not according to the maximum value of the pipeline pressure of the lubricating system, but according to the pressure change value of the pipeline, thereby early warning and taking cleaning measures can be carried out, and the blockage risk can be thoroughly eliminated. The maximum value of the pipeline is adopted as the basis for cleaning, the pipeline is often found to be blocked and burst, and the significance of the blockage alarm of the lubricating system is lost. Therefore, the control method for cleaning the system by adopting the pipeline pressure change value of the lubricating system can effectively prevent the system from being blocked and remove the blocking risk, is beneficial to the stable operation of the system and better provides the lubricating service for the equipment.
The cleaning time of the lubricating system completely depends on the pressure change value of a system pipeline, when the pressure change value is lower than a set value, the cleaning equipment is in a rest state, and the lubricating system continuously works according to the technical requirement; when the pressure change value is higher than the set value, the cleaning equipment calculates the operation time of the cleaning equipment according to the function of the pressure change value and the blockage risk coefficient of the lubricating system, and then cleaning work is carried out in the rest time of the lubricating system. After the cleaning is finished, the lubricating system is started, the pipeline pressure is monitored, the pipeline pressure is compared with the standard pipeline pressure, and the pipeline pressure is confirmed to reach the standard pressure value. If the standard value is not reached, the cleaning equipment is started again. If the standard pressure value is not reached again, an alarm state is entered, and a maintenance program is entered. The method of the invention is simple to control and easy to realize.
The invention is automatically completed by a set program in the control unit, and in the program circulation process, as the cleaning system is started according to the pressure difference value of the pipeline of the lubricating system, the reaction speed is high, and the cleaning system is not related to the running time parameter of the lubricating system, the misoperation and the risk of pipeline explosion caused by the measurement extreme value can be effectively avoided. The cleaning time is determined by establishing a standard functional relationship with the performance parameters of the cleaning solution according to the lubricating grease properties of the bearing lubrication system, working environment parameters, system operation frequency, pipeline length, pipeline diameter and the like. For example, according to the annual lubricating grease consumption of the bearing, the equipment starting and stopping times and the working mode, the annual total cleaning times can be obtained, and then the comparison is carried out according to the annual total cleaning times, so that the working performance of the lubricating system and the viscosity change of the lubricating grease can be reflected from the side face, and the multi-angle monitoring of the working condition and the lubricating effect evaluation of the lubricating system is facilitated.
Claims (4)
1. A pressure control-based lubricating system cleaning method is characterized in that a cleaning system is used for cleaning a lubricating system, the cleaning system is provided with a cleaning pump, a plurality of pressure sensors, a control unit and a connecting pipeline, the cleaning pump pumps cleaning liquid into the lubricating system through the connecting pipeline, the pressure sensors measure the pressure of pipelines at a lubricating grease pumping outlet of the lubricating pump of the lubricating system and at each lubricating grease outlet of a distributor, and the lubricating system cleaning method is characterized in that:
when the lubricating system works, the control unit compares the pressure value variable quantity output by the pressure sensor during two adjacent working with a set value;
the control unit judges whether the pressure value variation reaches a set value, if not, the lubricating system continues to operate;
if the pressure value reaches the set value, the cleaning operation is started, and the control unit records the maximum pressure value of the lubricating system at the time and the pressure value of the lubricating system after cleaning.
2. The pressure control based lubrication system cleaning method of claim 1, wherein: the cleaning starting operation comprises the steps that the control unit calculates the pressure value change measured by the pressure sensor, the cleaning system is started, and the cleaning system is stopped after the pipeline pressure of the lubricating system is reduced to a set value.
3. The pressure control based lubrication system purging method of claim 1, wherein: the starting cleaning operation comprises that the control unit monitors a pressure value measured by the pressure sensor, and calculates a pressure difference value when the lubricating system runs twice adjacently, a cleaning system running time and a difference value between the two adjacent cleaning system running times.
4. The pressure control based lubrication system cleaning method of claim 3, wherein: the control unit calculates according to the difference value of the running time of the two adjacent cleaning systems and the pressure difference value of the two adjacent running times of the lubricating system and the correlation function of the performance curve of the grease denaturation and provides a pressure change value of the lubricating system;
the control unit judges whether the pressure change value of the lubricating system reaches a set value of grease denaturation of the lubricating system, and if the pressure change value does not reach the set value, the lubricating system continues to operate; if the preset value is reached, an early warning operation is sent out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110753665.XA CN113623525B (en) | 2021-07-02 | 2021-07-02 | Lubrication system cleaning method based on pressure control |
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| CN202110753665.XA CN113623525B (en) | 2021-07-02 | 2021-07-02 | Lubrication system cleaning method based on pressure control |
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| CN113623525B true CN113623525B (en) | 2022-10-14 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0861592A (en) * | 1994-08-11 | 1996-03-08 | Mitsubishi Heavy Ind Ltd | Lubricating device for cylinder |
| CN1085813C (en) * | 1999-06-02 | 2002-05-29 | 朱永渊 | Method and equipment for cleaning lubricating system of engine |
| CN105478398A (en) * | 2015-12-11 | 2016-04-13 | 武汉华星光电技术有限公司 | Washing unit |
| CN105935679A (en) * | 2016-05-27 | 2016-09-14 | 上海二十冶建设有限公司 | Multifunctional oil flushing device and application method thereof |
| CN205978131U (en) * | 2016-07-22 | 2017-02-22 | 山东新华医疗器械股份有限公司 | A bearing lubricating arrangement for clean environment |
| CN206246655U (en) * | 2016-10-19 | 2017-06-13 | 天津华建天恒传动有限责任公司 | A kind of gearbox lubrication oil flushing equipment |
| DK179600B1 (en) * | 2017-06-22 | 2019-02-26 | Ocean Team Group A/S | Method and system for flushing a gear oil cooling circuit in a wind turbine |
| CN109027204B (en) * | 2018-08-31 | 2022-03-11 | 南京讯联智能科技有限公司 | Wind-powered electricity generation gear box solid particle monitoring, filtration and rinse-system |
| CN112283589B (en) * | 2020-11-09 | 2023-01-06 | 广东韶钢松山股份有限公司 | Flushing pressure and flow distribution method for hydraulic lubrication pipeline |
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