CN112807842B - High-level oil tank oil filtering system and working method based on constant power oil filter - Google Patents
High-level oil tank oil filtering system and working method based on constant power oil filter Download PDFInfo
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- 238000001914 filtration Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003921 oil Substances 0.000 claims abstract description 311
- 239000010687 lubricating oil Substances 0.000 claims abstract description 60
- 238000005070 sampling Methods 0.000 claims abstract description 42
- 238000007689 inspection Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims 12
- 239000003305 oil spill Substances 0.000 abstract description 14
- 239000000428 dust Substances 0.000 abstract description 3
- 239000002893 slag Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
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Abstract
本发明公开了一种基于恒功率滤油机的高位油箱滤油系统及工作方法，该系统包括高位油箱、升压油泵、恒功率滤油机、溢油管路、补油管路、进油管路、精滤过滤器、粗滤过滤器、过滤油泵、润滑油桶、取样管路、若干关断阀和若干辅助管路，本发明使用常规滤油机和不需改变高位油箱及其管路体系，通过可拆卸的辅助管路将升压油泵、普通滤油机与高位油箱的进油管路、补油管路、溢油管路相连接，使润滑油在进油管路和溢油管路中反向高速流动，在补油管路正向高速流动，尤其是与事故工况高位油箱补油过程的流动方向一致，通过润滑油的高速流动对进油管路、补油管路和溢油管路的焊渣、灰尘冲洗及外置过滤系统的过滤，可降低滤油过程循环次数，提高滤油效率。
The invention discloses a high-level oil tank oil filtering system and a working method based on a constant-power oil filter. The system includes a high-level oil tank, a boost oil pump, a constant-power oil filter, an oil spill pipeline, an oil supply pipeline, and an oil inlet pipeline. , fine filter, coarse filter, filter oil pump, lubricating oil barrel, sampling pipeline, several shut-off valves and several auxiliary pipelines. The present invention uses a conventional oil filter and does not need to change the high-level oil tank and its pipeline system. , connect the boost oil pump and ordinary oil filter to the oil inlet pipeline, oil supply pipeline and oil spill pipeline of the high-level oil tank through detachable auxiliary pipelines, so that the lubricating oil can be reflected in the oil inlet pipeline and oil spill pipeline. It flows towards high speed, and flows in the forward direction of high speed in the oil replenishment pipeline, especially in the same direction as the flow direction during the replenishment process of the high-level oil tank under accident conditions. The high-speed flow of lubricating oil affects the welding of the oil inlet pipeline, oil replenishment pipeline and oil spill pipeline. The slag and dust washing and filtration by the external filtration system can reduce the number of cycles of the oil filtration process and improve the oil filtration efficiency.
Description
技术领域Technical field
本发明涉及叶轮机械润滑油系统滤油技术领域，具体涉及一种基于常规恒功率滤油机的高位油箱滤油系统及工作方法。The invention relates to the technical field of oil filtering for impeller machinery lubricating oil systems, and specifically to a high-level oil tank oil filtering system and working method based on a conventional constant-power oil filter.
背景技术Background technique
在叶轮机械的附属系统中，润滑油系统是最为重要的辅助系统之一，润滑油的品质与叶轮机械设备的运行安全和使用寿命直接相关。现有技术可以实现对叶轮机械系统内除高位油箱管路的润滑油系统进行滤油，使叶轮机械除高位油箱及其管路外的润滑油系统的油质达到使用要求，却无法对叶轮机械系统中高位油箱及其管路进行滤油，这增加了叶轮机械系统发生失电事故时高位油箱内未达标的油质及杂质流入叶轮机械轴承处造成轴承损坏或整机损毁的风险。Among the auxiliary systems of turbine machinery, the lubricating oil system is one of the most important auxiliary systems. The quality of the lubricating oil is directly related to the operation safety and service life of the turbine machinery equipment. The existing technology can filter the lubricating oil system in the impeller machinery system except the high-level oil tank and pipelines, so that the oil quality of the lubricating oil system in the impeller machinery except the high-level oil tank and its pipelines can meet the usage requirements, but it cannot filter the lubricating oil system of the impeller machinery except the high-level oil tank and its pipelines. The high-level oil tank and its pipelines in the system are subject to oil filtration, which increases the risk of unqualified oil and impurities in the high-level oil tank flowing into the impeller machinery bearings, causing bearing damage or complete machine damage when a power outage accident occurs in the impeller machinery system.
发明内容Contents of the invention
本发明的目的就在于为了解决上述问题而提供一种基于常规恒功率滤油机的高位油箱滤油系统及工作方法。The purpose of the present invention is to provide a high-level oil tank oil filtering system and working method based on a conventional constant-power oil filter to solve the above problems.
本发明通过以下技术方案来实现上述目的：The present invention achieves the above objects through the following technical solutions:
基于恒功率滤油机的高位油箱滤油系统，包括高位油箱1、升压油泵2、恒功率滤油机3、溢油管路4、补油管路5、进油管路6、精滤过滤器7、粗滤过滤器8、过滤油泵9、润滑油桶10、取样管路11、若干关断阀12和若干辅助管路，其中，高位油箱1设置的进油口接口、补油口接口、溢油口接口分别与进油管路6的一端、补油管路5的一端、溢油管路4的一端相连，进油管路6的另一端与恒功率滤油机3的粗滤过滤器8上设置的进油口接口相连，补油管路5的另一端分别与取样管路11的一端、粗滤过滤器8上设置的补油口接口相连，溢油管路4的另一端通过辅助管路与升压油泵2的出口相连，升压油泵2的进口通过辅助管路分别与精滤过滤器7的出口、润滑油桶10的底部连接口相连，精滤过滤器7的进口通过辅助管路与过滤油泵9的出口相连，过滤油泵9的进口通过辅助管路与粗滤过滤器8的出口相连，在补油管路5、进油管路6、溢油管路4的水平走向的管路上分别设置一个关断阀12，在恒功率滤油机3与补油管路5、进油管路6相连的辅助管路上分别设置一个关断阀12，在精滤过滤器7与过滤油泵9之间的辅助管路、粗滤过滤器8与过滤油泵9之间的辅助管路上分别设置一个关断阀12，在与升压油泵2进口相连的精滤过滤器7出口支路辅助管路上和润滑油桶10支路辅助管路上分别设置一个关断阀12，取样管路11中间设置一个关断阀12，所述辅助管路可拆卸。A high-level oil tank oil filtration system based on a constant-power oil filter, including a high-level oil tank 1, a boost oil pump 2, a constant-power oil filter 3, an overflow oil pipeline 4, an oil supply pipeline 5, an oil inlet pipeline 6, and a fine filter 7. Coarse filter 8, filter oil pump 9, lubricating oil barrel 10, sampling pipeline 11, several shut-off valves 12 and several auxiliary pipelines. Among them, the high-level oil tank 1 has an oil inlet interface, an oil supply interface, The oil overflow port interface is connected to one end of the oil inlet pipeline 6, one end of the oil supply pipeline 5, and one end of the oil overflow pipeline 4. The other end of the oil inlet pipeline 6 is connected to the coarse filter 8 of the constant power oil filter 3. The oil inlet interface is connected to the provided oil inlet interface. The other end of the oil supply pipeline 5 is connected to one end of the sampling pipeline 11 and the oil supply port interface provided on the coarse filter 8. The other end of the oil overflow pipeline 4 passes through the auxiliary pipeline. It is connected to the outlet of the boost oil pump 2. The inlet of the boost oil pump 2 is connected to the outlet of the fine filter 7 and the bottom connection port of the lubricating oil barrel 10 through the auxiliary pipeline. The inlet of the fine filter 7 passes through the auxiliary pipeline. It is connected to the outlet of the filter oil pump 9, and the inlet of the filter oil pump 9 is connected to the outlet of the coarse filter 8 through an auxiliary pipeline. The horizontal pipelines of the oil supply pipeline 5, the oil inlet pipeline 6, and the overflow oil pipeline 4 are respectively A shut-off valve 12 is provided, and a shut-off valve 12 is respectively set on the auxiliary pipeline connected to the constant power oil filter 3 and the oil supply pipeline 5 and the oil inlet pipeline 6. Between the fine filter 7 and the filter oil pump 9 A shut-off valve 12 is respectively provided on the auxiliary pipeline between the auxiliary pipeline, the rough filter 8 and the filter oil pump 9. The auxiliary pipeline on the outlet branch of the fine filter 7 connected to the inlet of the boost oil pump 2 is connected with the lubricating oil. A shut-off valve 12 is respectively provided on the branch auxiliary pipeline of the barrel 10, and a shut-off valve 12 is provided in the middle of the sampling pipeline 11. The auxiliary pipeline is detachable.
所述的基于恒功率滤油机的高位油箱滤油系统的溢油管路4、补油管路5、进油管路6均具有竖直走向管路和水平走向管路。The oil spill pipeline 4, the oil supply pipeline 5, and the oil inlet pipeline 6 of the high-level oil tank oil filter system based on a constant power oil filter all have vertical pipelines and horizontal pipelines.
所述的基于恒功率滤油机的高位油箱滤油系统的过滤油泵9的电动机功率恒定，且当过滤油泵9与升压油泵2的泵油流量相同时，升压油泵2的供油扬程大于溢油管路4的每段竖直走向管路长度之和。The motor power of the filter oil pump 9 of the high-level oil tank oil filter system based on a constant power oil filter is constant, and when the oil flow rates of the filter oil pump 9 and the boost oil pump 2 are the same, the oil supply head of the boost oil pump 2 is greater than The sum of the vertical pipeline lengths of each section of the oil spill pipeline 4.
所述的基于恒功率滤油机的高位油箱滤油系统的溢油管路4上设置的关断阀12距离升压油泵2的距离小于1米，所述补油管路5和进油管路6上设置的关断阀12距离粗滤过滤器8的距离小于1米。The distance between the shut-off valve 12 installed on the oil overflow pipeline 4 of the high-level oil tank filter system based on the constant power oil filter and the boost oil pump 2 is less than 1 meter, and the oil supply pipeline 5 and the oil inlet pipeline 6 The distance between the shut-off valve 12 and the coarse filter 8 is less than 1 meter.
所述的基于恒功率滤油机的高位油箱滤油系统的工作方法，分为三个阶段，分别为注油阶段、滤油阶段和取样阶段，注油阶段为开启润滑油桶10支路辅助管路上的关断阀12和溢油管路4上的关断阀12，关闭其余关断阀，打开升压油泵2，将润滑油桶10中的润滑油先后经过润滑油桶10支路辅助管路和溢油管路4打入高位油箱1，当高位油箱1内的液位高度达到其额定储油高度的80％时，注油阶段完成，关闭所有关断阀12；滤油阶段在注油阶段完成后开始，打开除润滑油桶10支路辅助管路之外的所有关断阀12，打开升压油泵2和过滤油泵9，使润滑油从高位油箱1中分别沿补油管路5和进油管路6进入粗滤过滤器8，随后依次通过过滤油泵9、精滤过滤器7、升压油泵2和溢油管路4回到高位油箱1，实现润滑油在高位油箱及其管路系统内的滤油循环；当滤油阶段完成后，关闭所有关断阀12，进入取样阶段，打开补油管路5上的关断阀12，缓慢打开取样管路11中间的关断阀12，从取样管路11出口处放出5至10升润滑油润洗取样管路11，再从流淌状态的润滑油中接取少量润滑油润洗经过清洁处理的取样瓶，倒掉取样瓶中的润滑油，再用润洗过的取样瓶从流淌状态的润滑油中接取检验所需的润滑油容积的1.5倍，盖好取样瓶瓶盖，关闭补油管路5上的关断阀12，完成取样。The working method of the high-level oil tank oil filtering system based on the constant power oil filter is divided into three stages, namely the oil filling stage, the oil filtering stage and the sampling stage. The oil filling stage is to open the 10-branch auxiliary pipeline of the lubricating oil barrel. The shut-off valve 12 and the shut-off valve 12 on the overflow pipeline 4, close the other shut-off valves, open the booster oil pump 2, and pass the lubricating oil in the lubricating oil barrel 10 through the branch auxiliary pipeline of the lubricating oil barrel 10. and the oil spill pipeline 4 are driven into the high-level oil tank 1. When the liquid level in the high-level oil tank 1 reaches 80% of its rated oil storage height, the oil filling stage is completed, and all shut-off valves 12 are closed; the oil filtering stage is completed during the oil filling stage. Starting from the end, open all shut-off valves 12 except the auxiliary pipeline of the lubricating oil barrel 10 branch, open the boost oil pump 2 and the filter oil pump 9, so that the lubricating oil flows from the high-level oil tank 1 along the oil supply pipeline 5 and the oil inlet pipe respectively. Road 6 enters the coarse filter 8, and then returns to the high oil tank 1 through the filter oil pump 9, the fine filter 7, the boost oil pump 2 and the overflow pipeline 4, realizing the lubricating oil in the high oil tank and its pipeline system. oil filtering cycle; when the oil filtering stage is completed, close all shut-off valves 12, enter the sampling stage, open the shut-off valve 12 on the oil supply line 5, slowly open the shut-off valve 12 in the middle of the sampling line 11, and start sampling Release 5 to 10 liters of lubricating oil from the outlet of pipeline 11 to rinse the sampling pipeline 11, then take a small amount of lubricating oil from the flowing lubricating oil to rinse the cleaned sampling bottle, and pour out the lubricating oil in the sampling bottle. Then use the rinsed sampling bottle to collect 1.5 times the volume of lubricating oil required for inspection from the flowing lubricating oil, cap the sampling bottle, close the shut-off valve 12 on the oil supply line 5, and complete the sampling.
本发明的有益效果在于：The beneficial effects of the present invention are:
目前，尚未见到可以用于叶轮机械系统中高位油箱及其管路的滤油方案。本发明提出了一种造价低、可操作性高的基于滤油机的高位油箱滤油系统及工作方法，本发明在使用常规恒功率滤油机和不改变高位油箱及其管路体系的基础上，通过可拆卸的辅助管路将升压油泵、普通滤油机与高位油箱的进油管路、补油管路、溢油管路相连接，使润滑油在进油管路和溢油管路中反向高速流动，在补油管路正向高速流动，尤其是与事故工况高位油箱补油过程的流动方向一致，通过润滑油的高速流动对进油管路、补油管路和溢油管路的焊渣、灰尘冲洗及外置过滤系统的过滤，可以降低滤油过程循环次数，提高滤油效率，防止高位油箱管路内的焊渣、灰尘进入叶轮机械的轴承系统。同时，本发明为高位油箱补油口管路预留了取样口，在该位置取样做化验分析所取得的实验结果具有代表性；在补油管路、进油管路和溢油管路的水平走向管路上设置的关断阀，以及补油管路和进油管路上关断阀距离粗滤过滤器的距离小于1米，可以降低在在整个滤油环节中辅助管路拆卸时润滑油的浪费。At present, there is no oil filtering solution that can be used for high-level oil tanks and pipelines in turbomachinery systems. The present invention proposes a low-cost, high-operability high-level oil tank oil filtering system and working method based on an oil filter. The present invention uses a conventional constant-power oil filter and does not change the high-level oil tank and its pipeline system. On the top, the boost oil pump and ordinary oil filter are connected to the oil inlet pipeline, oil supply pipeline and oil spill pipeline of the high-level oil tank through detachable auxiliary pipelines, so that the lubricating oil can be circulated in the oil inlet pipeline and oil spill pipeline. Reverse high-speed flow, forward high-speed flow in the oil replenishment pipeline, especially the flow direction consistent with the replenishment process of the high-level oil tank under accident conditions. The high-speed flow of lubricating oil affects the oil inlet pipeline, oil replenishment pipeline and oil spill pipeline. Welding slag and dust flushing and filtration by an external filtration system can reduce the number of cycles of the oil filtering process, improve oil filtering efficiency, and prevent welding slag and dust in the high-level oil tank pipeline from entering the bearing system of the impeller machinery. At the same time, the present invention reserves a sampling port for the oil supply port pipeline of the high-level oil tank. The experimental results obtained by sampling at this position for laboratory analysis are representative; in the horizontal direction of the oil supply pipeline, the oil inlet pipeline and the oil spill pipeline The distance between the shut-off valves installed on the pipeline and the shut-off valves on the oil supply pipeline and the oil inlet pipeline from the coarse filter is less than 1 meter, which can reduce the waste of lubricating oil when the auxiliary pipeline is disassembled in the entire oil filtering process.
附图说明Description of the drawings
图1是本发明基于常规恒功率滤油机的高位油箱滤油系统的示意图。Figure 1 is a schematic diagram of a high-level fuel tank oil filtering system based on a conventional constant-power oil filter according to the present invention.
具体实施方式Detailed ways
下面结合附图对本发明作进一步说明：The present invention will be further described below in conjunction with the accompanying drawings:
如图1所示，基于恒功率滤油机的高位油箱滤油系统，包括高位油箱1、升压油泵2、恒功率滤油机3、溢油管路4、补油管路5、进油管路6、精滤过滤器7、粗滤过滤器8、过滤油泵9、润滑油桶10、取样管路11、若干关断阀12和若干辅助管路，其中，高位油箱1设置的进油口接口、补油口接口、溢油口接口分别与进油管路6的一端、补油管路5的一端、溢油管路4的一端相连，进油管路6的另一端与恒功率滤油机3的粗滤过滤器8上设置的进油口接口相连，补油管路5的另一端分别与取样管路11的一端、粗滤过滤器8上设置的补油口接口相连，溢油管路4的另一端通过辅助管路与升压油泵2的出口相连，升压油泵2的进口通过辅助管路分别与精滤过滤器7的出口、润滑油桶10的底部连接口相连，精滤过滤器7的进口通过辅助管路与过滤油泵9的出口相连，过滤油泵9的进口通过辅助管路与粗滤过滤器8的出口相连，在补油管路5、进油管路6、溢油管路4的水平走向的管路上分别设置一个关断阀12，在恒功率滤油机3与补油管路5、进油管路6相连的辅助管路上分别设置一个关断阀12，在精滤过滤器7与过滤油泵9之间的辅助管路、粗滤过滤器8与过滤油泵9之间的辅助管路上分别设置一个关断阀12，在与升压油泵2进口相连的精滤过滤器7出口支路辅助管路上和润滑油桶10支路辅助管路上分别设置一个关断阀12，取样管路11中间设置一个关断阀12，所述辅助管路可拆卸。As shown in Figure 1, the high-level oil tank oil filtration system based on a constant-power oil filter includes a high-level oil tank 1, a boost oil pump 2, a constant-power oil filter 3, an oil overflow pipeline 4, an oil supply pipeline 5, and an oil inlet pipeline. 6. Fine filter 7, coarse filter 8, filter oil pump 9, lubricating oil barrel 10, sampling pipeline 11, several shut-off valves 12 and several auxiliary pipelines. Among them, the oil inlet interface provided in the high-level oil tank 1 , the oil supply port interface and the oil overflow port interface are respectively connected to one end of the oil inlet pipeline 6, one end of the oil supply pipeline 5, and one end of the oil overflow pipeline 4. The other end of the oil inlet pipeline 6 is connected to the constant power oil filter 3 The oil inlet interface provided on the coarse filter 8 is connected. The other end of the oil supply pipeline 5 is connected to one end of the sampling pipeline 11 and the oil supply interface provided on the coarse filter 8. The oil overflow pipeline 4 The other end is connected to the outlet of the boost oil pump 2 through an auxiliary pipeline. The inlet of the boost oil pump 2 is connected to the outlet of the fine filter 7 and the bottom connection port of the lubricating oil barrel 10 through the auxiliary pipeline. The fine filter 7 The inlet of the filter oil pump 9 is connected to the outlet of the filter oil pump 9 through the auxiliary pipeline, and the inlet of the filter oil pump 9 is connected to the outlet of the rough filter 8 through the auxiliary pipeline. A shut-off valve 12 is respectively provided on the horizontal pipeline. A shut-off valve 12 is respectively provided on the auxiliary pipeline connecting the constant power oil filter 3 to the oil supply pipeline 5 and the oil inlet pipeline 6. The fine filtration filter 7 and A shut-off valve 12 is respectively provided on the auxiliary pipeline between the filter oil pump 9 and the auxiliary pipeline between the coarse filter 8 and the filter oil pump 9. The outlet branch of the fine filter 7 connected to the inlet of the boost oil pump 2 A shut-off valve 12 is provided on the auxiliary pipeline and the auxiliary pipeline of the branch of the lubricating oil barrel 10 respectively, and a shut-off valve 12 is provided in the middle of the sampling pipeline 11. The auxiliary pipeline is detachable.
作为本发明的优选实施方式，所述的基于恒功率滤油机的高位油箱滤油系统的溢油管路4、补油管路5、进油管路6均具有竖直走向管路和水平走向管路。As a preferred embodiment of the present invention, the oil overflow pipeline 4, the oil supply pipeline 5, and the oil inlet pipeline 6 of the high-level oil tank filter system based on a constant power oil filter all have vertical pipelines and horizontal pipelines. road.
作为本发明的优选实施方式，所述的基于恒功率滤油机的高位油箱滤油系统的过滤油泵9的电动机功率恒定，且当过滤油泵9与升压油泵2的泵油流量相同时，升压油泵2的供油扬程大于溢油管路4的每段竖直走向管路长度之和。As a preferred embodiment of the present invention, the motor power of the filter oil pump 9 of the high-level oil tank oil filter system based on a constant power oil filter is constant, and when the oil flow rates of the filter oil pump 9 and the boost oil pump 2 are the same, the liter The oil supply lift of the oil pressure pump 2 is greater than the sum of the lengths of each vertical pipeline section of the oil spill pipeline 4.
作为本发明的优选实施方式，所述的基于恒功率滤油机的高位油箱滤油系统的溢油管路4上设置的关断阀12距离升压油泵2的距离小于1米，所述补油管路5和进油管路6上设置的关断阀12距离粗滤过滤器8的距离小于1米。As a preferred embodiment of the present invention, the distance between the shut-off valve 12 provided on the oil overflow pipeline 4 of the high-level oil tank filter system based on a constant-power oil filter and the boost oil pump 2 is less than 1 meter. The distance between the shut-off valve 12 provided on the oil pipeline 5 and the oil inlet pipeline 6 and the coarse filter 8 is less than 1 meter.
本发明所述的基于恒功率滤油机的高位油箱滤油系统的工作方法，分为三个阶段，分别为注油阶段、滤油阶段和取样阶段，注油阶段为开启润滑油桶10支路辅助管路上的关断阀12和溢油管路4上的关断阀12，关闭其余关断阀，打开升压油泵2，将润滑油桶10中的润滑油先后经过润滑油桶10支路辅助管路和溢油管路4打入高位油箱1，当高位油箱1内的液位高度达到其额定储油高度的80％时，注油阶段完成，关闭所有关断阀12；滤油阶段在注油阶段完成后开始，打开除润滑油桶10支路辅助管路之外的所有关断阀12，打开升压油泵2和过滤油泵9，使润滑油从高位油箱1中分别沿补油管路5和进油管路6进入粗滤过滤器8，随后依次通过过滤油泵9、精滤过滤器7、升压油泵2和溢油管路4回到高位油箱1，实现润滑油在高位油箱及其管路系统内的滤油循环；当滤油阶段完成后，关闭所有关断阀12，进入取样阶段，打开补油管路5上的关断阀12，缓慢打开取样管路11中间的关断阀12，从取样管路11出口处放出5至10升润滑油润洗取样管路11，再从流淌状态的润滑油中接取少量润滑油润洗经过清洁处理的取样瓶，倒掉取样瓶中的润滑油，再用润洗过的取样瓶从流淌状态的润滑油中接取检验所需的润滑油容积的1.5倍，盖好取样瓶瓶盖，关闭补油管路5上的关断阀12，完成取样。The working method of the high-level oil tank oil filtering system based on the constant power oil filter according to the present invention is divided into three stages, namely the oil filling stage, the oil filtering stage and the sampling stage. The oil filling stage is assisted by opening the 10 branches of the lubricating oil barrel. The shut-off valve 12 on the pipeline and the shut-off valve 12 on the oil spill pipeline 4 are closed. The remaining shut-off valves are closed, the booster oil pump 2 is opened, and the lubricating oil in the lubricating oil barrel 10 is successively passed through the lubricating oil barrel 10 branch auxiliary The pipeline and oil spill pipeline 4 are driven into the high-level oil tank 1. When the liquid level in the high-level oil tank 1 reaches 80% of its rated oil storage height, the oil filling stage is completed and all shut-off valves 12 are closed; in the oil filtering stage, the oil filling stage After the stage is completed, open all shut-off valves 12 except the auxiliary pipeline of the lubricating oil barrel 10 branch, open the boost oil pump 2 and the filter oil pump 9, so that the lubricating oil flows from the high-level oil tank 1 along the oil supply pipeline 5 and 9 respectively. The oil inlet pipeline 6 enters the coarse filter 8, and then returns to the high-level oil tank 1 through the filter oil pump 9, fine filter 7, boost oil pump 2 and overflow pipeline 4, so that the lubricating oil can be stored in the high-level oil tank and its pipelines. Oil filtering cycle in the system; when the oil filtering stage is completed, close all shut-off valves 12, enter the sampling stage, open the shut-off valve 12 on the oil supply line 5, and slowly open the shut-off valve 12 in the middle of the sampling line 11, Release 5 to 10 liters of lubricating oil from the outlet of the sampling line 11 to rinse the sampling line 11, then take a small amount of lubricating oil from the flowing lubricating oil to rinse the cleaned sampling bottle, and pour out the lubrication in the sampling bottle oil, and then use a rinsed sampling bottle to collect 1.5 times the volume of lubricating oil required for inspection from the flowing lubricating oil, cap the sampling bottle, close the shut-off valve 12 on the oil supply line 5, and complete sampling.
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