CN111075770A - Intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearing - Google Patents
Intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearing Download PDFInfo
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- CN111075770A CN111075770A CN201911146542.9A CN201911146542A CN111075770A CN 111075770 A CN111075770 A CN 111075770A CN 201911146542 A CN201911146542 A CN 201911146542A CN 111075770 A CN111075770 A CN 111075770A
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- oil
- cooling water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D31/00—Pumping liquids and elastic fluids at the same time
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
Abstract
The invention discloses an intelligent lubricating and cooling oil station for a solid-liquid two-phase flow pump bearing, which comprises an oil tank, a circulating cooling water system and an oil cooling system, wherein the oil cooling system comprises an oil pump, an oil pump motor, a filter, an oil cooler, an oil supply pipeline, a pressure sensor and a pressure regulating valve, and the circulating cooling water system comprises a circulating cooling water pump, a circulating cooling water pump motor, a cooling water inlet, a cooling water outlet and a temperature sensor. The intelligent cooling oil station for the solid-liquid two-phase flow pump bearing can ensure that the lubricating oil meets the cooling requirement, so that the lubricating oil can fully exert the lubricating and radiating effects, the service life of the bearing is prolonged, the normal operation of the solid-liquid two-phase flow pump is ensured, the cooling circulating water pump is controlled by the oil temperature detected by the temperature sensor, and when the oil temperature reaches the preset temperature threshold, the circulating cooling water pump is automatically started or stopped, so that the intelligent cooling oil station is energy-saving and economical.
Description
Technical Field
The invention relates to the technical field of solid-liquid two-phase flow pump bearings, in particular to an intelligent cooling oil station for a solid-liquid two-phase flow pump bearing.
Background
In the prior art, the 250ZJ-75 type slurry pump bearing adopts an open bracket thin oil lubrication mode, and lubricating oil is cooled by a circulating water cooling device arranged in an oil chamber. When the equipment runs, lubricating oil in the oil chamber is cooled only by the circulating water cooling device, the cooling effect is poor, the lubricating effect is not ideal, and the bearing temperature is too high to lock or the bearing is damaged after the equipment runs for a long time. The improvement measures are as follows: firstly, a fixing sleeve is arranged at the middle position in a main shaft bearing box of the slurry pump, an oil slinger is hung in a groove of the fixing sleeve, 1/3 on the lower portion of the oil slinger is immersed in lubricating oil, and when the slurry pump operates, the oil slinger rotates along with a main shaft to bring lubricating oil to be sprayed on inner and outer end bearings in the bearing box, so that the lubricating bearing is lubricated, and the lubricating oil dissipates heat. "- - - -" reference improvement of bearing lubrication system of slurry pump "(improvement of bearing lubrication system of slurry pump in hodgkin, bang-roller, wu stand.). improvement of bearing lubrication system of slurry pump [ J ]. mining machinery, 2012(08):145-
The above prior art has many problems, including: 1. the lubricating system still does not completely solve the problem of overhigh temperature of the lubricating oil, and the cooling device does not have the due effect; 2. the lubricating system cannot monitor the temperature of the lubricating oil in the oil chamber in real time; 3. the circulating cooling water pump in the lubricating system needs to be kept in a starting state all the time when the slurry pump works, and the circulating cooling water pump is not economical.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an intelligent cooling oil station for a solid-liquid two-phase flow pump bearing, which can monitor the temperature of lubricating oil supplied to the bearing in real time and thoroughly cool the lubricating oil, ensure that the lubricating oil can play a role in lubrication and heat dissipation, prolong the service life of the bearing and ensure that the solid-liquid two-phase flow pump can normally operate. Meanwhile, when the temperature of the lubricating oil is lower than 45 ℃, the circulating cooling water pump is automatically stopped, and the intelligent and economical effects are achieved.
In order to solve any one of the technical problems, the following technical scheme is adopted:
an intelligent lubricating and cooling oil station for a solid-liquid two-phase flow pump bearing comprises an oil tank, a circulating and cooling water system and an oil cooling system,
the oil cooling system comprises an oil pump, an oil pump motor, a filter, an oil cooler, an oil supply pipeline, a pressure sensor and a pressure regulating valve, wherein the oil pump is positioned on the inner wall of the top of an oil tank, the oil pump motor is positioned on the outer wall of the top of the oil tank, the oil pump is connected with the oil pump motor through a coupler, the filter is positioned on the outer side of the oil tank, the inlet end of the filter is connected with the oil pump motor, the outlet end of the filter is communicated with the oil cooler, the oil cooler is communicated with the oil supply pipeline, the oil supply pipeline is provided with the pressure sensor and the pressure regulating valve, the oil supply port of the oil supply pipeline is used for being communicated with the oil inlet of a solid-liquid two-phase flow pump bearing body, the outer wall;
the circulating cooling water system comprises a circulating cooling water pump, a circulating cooling water pump motor, a cooling water inlet, a cooling water outlet and a temperature sensor, the circulating cooling water pump reaches the circulating cooling water pump motor which is located at the bottom of the oil tank, the circulating cooling water pump is connected with the circulating cooling water pump motor through a coupler, the cooling water inlet is connected with the cooling water outlet through a pipeline respectively, and the temperature sensor is located in the oil tank.
Furthermore, the oil pump is used for discharging oil in the oil tank, the oil pump motor is used for driving the oil to sequentially flow into the filter, the oil cooler and the pressure regulating valve and then enter the solid-liquid two-phase flow pump bearing body through a pipeline, and the oil return port is communicated with an oil discharge port of the solid-liquid two-phase flow pump bearing body, so that the oil flows back to the oil tank through an oil return pipeline.
By adopting the structure, oil discharged by the oil pump enters the solid-liquid two-phase flow pump bearing body through the pipeline after passing through the filter, the oil cooler and the pressure regulating valve, and then flows back to the oil tank through the oil return opening along the oil return pipeline, so that the defect of poor cooling effect of the traditional lubricating oil cooling device is overcome.
Furthermore, the intelligent lubricating and cooling oil station for the solid-liquid two-phase flow pump bearing further comprises a liquid level meter, wherein the liquid level meter is positioned at the upper part in the oil tank and used for detecting the height of oil in the oil tank in real time.
Further, the oil tank volume is 300L, the top of oil tank is equipped with the oiling mouth, the oiling mouth is used for using before the oil station the oil tank pours into the lubricating oil of predetermineeing the volume into. Before the oil station is used, enough lubricating oil is injected through the oil injection port, so that the bearing can be always in a lubricating state in the working process of the pump.
Further, the intelligent lubricating and cooling oil station for the solid-liquid two-phase flow pump bearing further comprises a distribution box, wherein the distribution box is located on the right side of the outer wall of the top of the oil tank, and the wiring of the distribution box is a three-phase four-wire system.
Furthermore, the intelligent lubricating and cooling oil station for the solid-liquid two-phase flow pump bearing further comprises a plurality of oil discharging ports, and the oil discharging ports are located on two sides of the bottom of the oil tank.
Furthermore, the cooling water inlet is connected with a cooling water inlet pipe, and the cooling water outlet is connected with a cooling water outlet pipe.
Further, the circulating cooling water pump comprises a manual mode and an automatic mode, the manual mode is used when the circulating cooling water pump is started for the first time, and the circulating cooling water pump is switched to the automatic mode after the circulating cooling water is normal; the automatic mode is controlled by the oil temperature detected by the temperature sensor, and when the temperature sensor detects that the oil temperature in the oil tank reaches a preset temperature threshold, the circulating cooling water pump is automatically started or stopped.
Further, when the temperature sensor detects that the temperature of oil in the oil tank reaches 55 ℃, the circulating cooling water pump is automatically started;
and when the temperature sensor detects that the temperature of the oil in the oil tank is lower than 45 ℃, the circulating cooling water pump automatically stops. The defect that a traditional cooling device cooling water pump needs to be kept in a starting state all the time is completely overcome, and the energy-saving and economical effects are achieved.
Further, temperature sensor carries out real time monitoring to lubricating oil temperature, works as temperature sensor detects when the fluid temperature in the oil tank reaches 55 ℃, sends high temperature alarm signal, reminds the staff to inspect whether circulating cooling water pump normally operates, whether cooling circulating water is normal, guarantees the operation that the oil station can be safe and stable.
Further, pressure sensor is used for real-time supervision the oil pressure in the oil tank works as pressure sensor monitors when the oil pressure in the oil tank is less than 0.1MPa, sends low pressure alarm signal, reminds the staff to suspend the host computer, and whether check oil pump, oil pump motor normally operate, whether the filter blocks up, guarantees the operation that the oil station can safe and stable.
The invention has the following beneficial effects:
1. cooling in the oil station can ensure that the lubricating oil meets the cooling requirement;
2. a temperature sensor and a pressure sensor are arranged in the oil station, so that an alarm can be automatically given when the lubricating oil is in an abnormal state, and other dangerous conditions in the oil station are avoided;
3. in an automatic mode, the cooling circulating water pump is controlled by a temperature sensor, the cooling circulating water pump is automatically started when the temperature of oil reaches 55 ℃, and is automatically stopped when the temperature is lower than 45 ℃, so that the energy-saving and economical effects are achieved.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent lubricating and cooling oil station for a solid-liquid two-phase flow pump bearing according to the invention.
In the figure: 1-oil outlet, 2-circulating cooling water pump, 3-cooling water inlet, 4-temperature sensor, 5-liquid level meter, 6-oil pump, 7-oil inlet, 8-oil pump motor, 9-filter, 10-distribution box, 11-pressure sensor, 12-oil inlet, 13-pressure regulating valve, 14-cooling water outlet, 15-oil cooler, 16-oil return, 17-circulating cooling water pump motor and 18-oil tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
Example (b):
the invention mainly aims to solve the problems of poor cooling effect and poor bearing lubricating effect of a circulating water cooling device of a bearing lubricating device of a traditional slurry pump, a sand pump, a slurry pump and the like, and provides an intelligent cooling oil station for a solid-liquid two-phase flow pump bearing.
The structure of the intelligent cooling oil station for the solid-liquid two-phase pump bearing is shown in figure 1, the intelligent cooling oil station for the solid-liquid two-phase pump bearing comprises an oil tank 18, a circulating cooling water system and an oil cooling system, the oil cooling system comprises an oil pump 6, an oil pump motor 8, a filter 9 and an oil cooler 15, the oil pump 6 is positioned on the inner wall of the top of the oil tank 18 and is connected with the oil pump motor 8 through a coupler, the oil pump motor 8 is positioned on the left side of the outer wall of the top of the oil tank 18, the filter 9 is positioned in the middle of the outer wall of the top of the oil tank 18, the inlet end of the filter 9 is connected with the oil pump motor 8, the outlet end of the filter 9 is communicated with the oil cooler 15, the oil cooler 15 is positioned on the top of the oil tank 18, the oil cooler 15 is communicated with an oil supply pipeline, a pressure sensor 11 and, the oil supply port 12 is positioned outside the oil tank 18, an oil return port 16 is arranged on the outer wall of the oil tank 18, the oil return port 16 is positioned in the middle of the oil tank 18, and the oil return port 16 is used for being communicated with an oil liquid discharge port of a solid-liquid two-phase flow pump bearing body; the circulating cooling water system comprises a circulating cooling water pump 2, a circulating cooling water pump motor 17, a temperature sensor 4, a cooling water inlet 3 and a cooling water outlet 14, the circulating cooling water pump 2 and the circulating cooling water pump motor 17 are positioned at the bottom of the oil tank 18, the circulating cooling water pump 2 is connected with a circulating cooling water pump motor 17 through a coupler, the temperature sensor 4 is positioned in an oil tank 18 and below the oil pump 6, the cooling water inlet 3 is positioned at the left side of the oil tank 18, one side of the cooling water inlet 3 is connected with a cooling water inlet pipe, the other side of the cooling water inlet 3 is connected with the circulating cooling water pump 2 through a pipeline, the cooling water outlet 14 is positioned at the right side of the upper part of the oil tank 18, one side of the cooling water outlet 14 is connected with the circulating cooling water pump 2 through a pipeline, and the other side of the cooling water outlet 14 is connected with a cooling water outlet pipe.
The intelligent cooling oil station for the solid-liquid two-phase flow pump bearing further comprises a plurality of oil discharging ports 1 and oil filling ports 7, the oil discharging ports 1 are located on two sides of the bottom of the oil tank 18, and the oil filling ports 7 are located on the top of the oil tank 18.
In some embodiments, the intelligent cooling oil station for the solid-liquid two-phase pump bearing further comprises a liquid level meter 5, and the liquid level meter 5 is positioned in the upper part in the oil tank 18.
In some embodiments, the intelligent cooling oil station for bearings of solid-liquid two-phase flow pumps further comprises a distribution box 10, and the distribution box 10 is located on the right side of the outer wall of the top of the oil tank 18.
The main working process of the intelligent cooling oil station for the solid-liquid two-phase flow pump bearing of the embodiment is as follows:
oil is discharged from an oil pump 6, passes through a filter 9, an oil cooler 15 and a pressure regulating valve 13, enters a pump bearing body through a pipeline oil supply port, then flows back to an oil tank 18 through an oil return port 16 along an oil return pipeline to finish one round of lubrication, and enters the next round of lubrication after being cooled by the oil cooler 15;
the oil tank 18 is provided with a circulating cooling water inlet and a circulating cooling water outlet, and a lubricating oil supply and an oil return port which are respectively matched with a circulating cooling water pipeline system and a lubricating oil pipeline system, and the two pipeline systems are mutually matched and work cooperatively to jointly complete the bearing lubrication work of the solid-liquid two-phase flow pump;
the circulating cooling water pump 2 has a manual mode and an automatic mode, the manual mode is started firstly, the circulating cooling water is switched to the automatic mode after being normal, the automatic mode is controlled by the temperature sensor 4, when the temperature sensor 4 detects that the temperature of oil liquid reaches 55 ℃, the circulating cooling water pump 2 is automatically started, and when the temperature sensor 4 detects that the temperature of the oil liquid is lower than 45 ℃, the circulating cooling water pump 2 is automatically stopped, so that the defect that the cooling water pump of the traditional cooling device needs to be kept in a starting state all the time is completely overcome, and the energy is saved and the economy is realized;
the temperature sensor 4 monitors the temperature of the lubricating oil in real time, and sends out a high-temperature alarm signal when the temperature is higher than 55 ℃, and whether the circulating cooling water pump 2 runs normally and the cooling circulating water runs normally or not is checked at the moment, so that the oil station can run safely and stably;
the pressure sensor 11 monitors the oil pressure in the oil tank 18 in real time, sends out a low-pressure alarm signal when the pressure is lower than 0.1MPa, and then the host computer is stopped to check whether the oil pump 6 and the oil pump motor 8 are in normal operation or not and whether the filter 9 is blocked or not, so that the oil station can be ensured to run safely and stably.
When the intelligent cooling oil station for the bearing of the solid-liquid two-phase flow pump is used, enough lubricating oil is injected into an oil tank 18, an oil supply port 12 of the oil station is connected with an oil inlet of a bearing body, an oil discharge port of the bearing body is connected with an oil return port 16 of the oil station, and an inlet and an outlet of a cooling circulating water pump are connected with an inlet and an outlet of cooling water. When the oil pump works, oil is discharged from the oil pump 6, passes through the filter 9, the oil cooler 15 and the pressure regulating valve, enters the solid-liquid two-phase flow pump bearing body through a pipeline, and then flows back to the oil tank 18 along an oil return pipeline. In the process, the pressure sensor 11 and the temperature sensor 4 can monitor the oil temperature and the oil pressure of the lubricating oil in the oil tank 18 in real time, and once an abnormal condition occurs, an alarm signal can be sent to avoid other dangerous conditions.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An intelligent lubricating and cooling oil station for a solid-liquid two-phase flow pump bearing is characterized by comprising: an oil tank (18), a circulating cooling water system and an oil cooling system,
the oil cooling system comprises an oil pump (6), an oil pump motor (8), a filter (9), an oil cooler (15), an oil supply pipeline, a pressure sensor (11) and a pressure regulating valve (13), wherein the oil pump (6) is positioned on the inner wall of the top of an oil tank (18), the oil pump motor (8) is positioned on the outer wall of the top of the oil tank (18), the oil pump (6) is connected with the oil pump motor (8) through a coupler, the filter (9) is positioned on the outer side of the oil tank (18), the inlet end of the filter (9) is connected with the oil pump motor (8), the outlet end of the filter (9) is communicated with the oil cooler (15), the oil cooler (15) is communicated with the oil supply pipeline, the oil supply pipeline is provided with the pressure sensor (11) and the pressure regulating valve (13), and an oil supply port (12) of the oil supply pipeline is communicated with an oil, an oil return port (16) is formed in the outer wall of the oil tank (18), and the oil return port (16) is used for being communicated with an oil liquid discharge port of the solid-liquid two-phase flow pump bearing body;
recirculating cooling water system includes recirculating cooling water pump (2), recirculating cooling water pump motor (17), cooling water inlet (3), cooling water delivery port (14) and temperature sensor (4), recirculating cooling water pump (2) reaches recirculating cooling water pump motor (17) is located the bottom of oil tank (18), recirculating cooling water pump (2) pass through the shaft coupling with recirculating cooling water pump motor (17) link to each other, cooling water inlet (3) with cooling water delivery port (14) respectively through the pipeline with recirculating cooling water pump (2) link to each other, temperature sensor (4) are located in oil tank (18).
2. The intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearings according to claim 1, characterized in that: the oil pump (6) is used for discharging oil in the oil tank (18), the oil pump motor (8) is used for driving the oil to sequentially flow into the filter (9), the oil cooler (15) and the pressure regulating valve (13) and then enter the solid-liquid two-phase flow pump bearing body through a pipeline, and the oil return port (16) is communicated with an oil discharge port of the solid-liquid two-phase flow pump bearing body, so that the oil flows back to the oil tank (18) through an oil return pipeline.
3. The intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearings according to claim 1, characterized in that: the oil tank also comprises a liquid level meter (5), wherein the liquid level meter (5) is positioned at the inner upper part of the oil tank (18).
4. The intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearings according to claim 1, characterized in that: the volume of the oil tank (18) is 300L, the top of the oil tank (18) is provided with an oil filling port (7), and the oil filling port (7) is used for filling lubricating oil with a preset volume into the oil tank (18) before an oil station is used.
5. The intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearings according to claim 1, characterized in that: still include block terminal (10), block terminal (10) are located oil tank (18) outer wall, block terminal (10) wiring is three-phase four-wire system.
6. The intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearings according to claim 1, characterized in that: the intelligent cooling oil station for the solid-liquid two-phase flow pump bearing further comprises a plurality of oil discharging ports (1), and the oil discharging ports (1) are located on two sides of the bottom of the oil tank (18).
7. The intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearings according to claim 1, characterized in that: the cooling water inlet (3) is connected with a cooling water inlet pipe, and the cooling water outlet (14) is connected with a cooling water outlet pipe.
8. The intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearings according to claim 1, characterized in that: the circulating cooling water pump (2) comprises an automatic mode, the automatic mode is controlled by the temperature sensor (4), and when the temperature sensor (4) detects that the temperature of oil in the oil tank (18) reaches a preset temperature threshold value, the circulating cooling water pump (2) is controlled to be started or stopped.
9. The intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearings according to claim 8, characterized in that:
when the temperature sensor (4) detects that the temperature of oil in the oil tank (18) reaches 55 ℃, the circulating cooling water pump (2) is automatically started and sends out a high-temperature alarm signal;
and when the temperature sensor (4) detects that the temperature of the oil in the oil tank (18) is lower than 45 ℃, the circulating cooling water pump (2) is automatically stopped.
10. The intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearings according to claim 1, characterized in that: the pressure sensor (11) is used for monitoring the oil pressure in the oil tank (18) in real time, and when the pressure sensor (11) monitors that the oil pressure in the oil tank (18) is lower than 0.1MPa, a low-pressure alarm signal is sent out.
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| CN201911146542.9A CN111075770A (en) | 2019-11-21 | 2019-11-21 | Intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearing |
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| CN201911146542.9A CN111075770A (en) | 2019-11-21 | 2019-11-21 | Intelligent lubricating and cooling oil station for solid-liquid two-phase flow pump bearing |
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| CN203836547U (en) * | 2014-05-30 | 2014-09-17 | 浙江乐客来机械有限公司 | Lubricating oil conveying device |
| CN206530860U (en) * | 2017-01-19 | 2017-09-29 | 云南大红山管道有限公司 | Horizontal multi-stage double suction centrifugal pump and its bearing lubrication oil supply system are opened in a kind of level |
| CN207962061U (en) * | 2018-03-16 | 2018-10-12 | 沈阳亿达流体冷却设备有限公司 | A kind of sealing petrol station |
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2019
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| JPS61109999A (en) * | 1984-11-02 | 1986-05-28 | Daikin Ind Ltd | Dual main pipe type centralized lubrication device |
| US20100193294A1 (en) * | 2009-02-05 | 2010-08-05 | Wabtec Holding Corp. | Air Compressor Pre-Lubrication System |
| CN201412381Y (en) * | 2009-06-16 | 2010-02-24 | 上海凯泉泵业（集团）有限公司 | Independent oil supply station device of multistage centrifugal pump |
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| US20130309340A1 (en) * | 2012-05-16 | 2013-11-21 | Stephen E. Day | Lubrication Of Bearing And Roller Shaft In Pellet Mill Machines |
| CN203836547U (en) * | 2014-05-30 | 2014-09-17 | 浙江乐客来机械有限公司 | Lubricating oil conveying device |
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Application publication date: 20200428 |
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| RJ01 | Rejection of invention patent application after publication |