CN109630856B - Self-circulation lubricating and cooling system of petroleum equipment - Google Patents
Self-circulation lubricating and cooling system of petroleum equipment Download PDFInfo
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- CN109630856B CN109630856B CN201811354022.2A CN201811354022A CN109630856B CN 109630856 B CN109630856 B CN 109630856B CN 201811354022 A CN201811354022 A CN 201811354022A CN 109630856 B CN109630856 B CN 109630856B
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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
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
Abstract
The invention discloses a self-circulation lubricating and cooling system of petroleum equipment, which comprises an oil supply subsystem, a cooling subsystem, a lubricating subsystem and a self-circulation subsystem, wherein the oil supply subsystem, the cooling subsystem and the lubricating subsystem form a lubricating oil circulation loop, the self-circulation subsystem is connected with the cooling subsystem, the self-circulation subsystem comprises a cooling water tank, a heating water tank and a water pump, the cooling water tank and the heating water tank are connected with a water inlet of the water pump in parallel and are connected with the cooling subsystem through the water pump to form a water path loop. According to the invention, the cooling water tank and the heating water tank are respectively arranged in the self-circulation subsystem, so that under the working condition of high temperature or low temperature, the lubricating oil can be heated and cooled, the lubricating oil is ensured to be at the optimal oil temperature, the normal operation of equipment is ensured, and meanwhile, the cooling water in the self-circulation subsystem is recycled, so that the consumption of the circulating water is greatly reduced, the self-circulation subsystem is convenient to use in places with difficult water supplement, and the requirements of site infrastructure construction are reduced.
Description
Technical Field
The invention belongs to the field of lubricating and cooling systems, and particularly relates to a self-circulation lubricating and cooling system for petroleum equipment.
Background
The petroleum industry has wide equipment distribution range, various types and severe equipment operation environment, which puts higher requirements on equipment lubrication. The lubrication of the equipment often directly affects the load-bearing capacity and the use of the machine equipment. The traditional lubricating system is too simple in design, has high requirements on environment and field matching, and is not suitable for occasions with limited field conditions. For example, chinese patent application No. 201521071097.1 discloses a lubricating system suitable for fracturing pump power end, mainly by hydraulic tank, hydraulic oil pump, relief valve i, hydraulic pressure oil return filter, hydraulic motor, lubricating oil pump, inhale oil filter, relief valve ii, tubular filter, the temperature-regulating valve, relief valve III, the radiator, pressure sensor, relief valve iv, the fracturing pump, temperature sensor, lubricating oil tank constitute, when the operating mode of low temperature, lubricating oil viscosity is great, the motor load is big, when the operating mode of high temperature, lubricating oil viscosity is little, the motor load is little, under different operating modes, this system can't adjust according to different operating modes, lead to when the operating mode of temperature, the motor load influences the motor life greatly.
Disclosure of Invention
In order to solve the technical problems, the invention provides a self-circulation lubricating and cooling system for petroleum equipment, which can solve the problem of poor adaptability in the prior art.
The invention is realized by the following technical scheme.
The invention provides a self-circulation lubricating and cooling system of petroleum equipment, which comprises an oil supply subsystem, a cooling subsystem, a lubricating subsystem and a self-circulation subsystem, wherein the oil supply subsystem, the cooling subsystem and the lubricating subsystem form a lubricating oil circulation loop, the self-circulation subsystem is connected with the cooling subsystem, the self-circulation subsystem comprises a cooling water tank, a heating water tank and a water pump, the cooling water tank and the heating water tank are connected with a water inlet of the water pump in parallel and are connected with the cooling subsystem through the water pump to form a water path loop.
The lubricating subsystem comprises a flow switch and a lubricating point, the cooling subsystem is connected with the lubricating point through the flow switch, and the lubricating point is also connected with the oil supply subsystem.
The cooling subsystem comprises an oil-water heat exchanger, a water-water heat exchanger and a temperature control valve, wherein an oil outlet at one side of the temperature control valve is connected with a flow switch through the oil-water heat exchanger, an oil outlet at the other side of the temperature control valve is directly connected with the flow switch, and the oil-water heat exchanger and the water-water heat exchanger are connected in parallel and form a water path loop with the self-circulation subsystem.
The oil supply subsystem comprises an oil tank, a coarse filter, an oil pump, a fine filter and an overflow valve, wherein the coarse filter is connected with the oil tank through a channel at one end of the oil pump, the other end of the oil pump is connected with the temperature control valve through the fine filter, one end of the overflow valve is connected with the oil pump, the other end of the overflow valve is connected with the oil tank, and a lubricating point is connected with the oil tank through a pipeline.
Be equipped with cooler, spray thrower, fan in the cooling water tank, cooler, spray thrower are connected with the cooling subsystem through the solenoid valve respectively, and fan, cooler, spray thrower are all installed in cooling water tank, and the fan is installed in the cooler top, and the air-out direction of fan is down, and the spray thrower is installed in the cooler below, and the spray thrower sprays the direction up.
Heaters are arranged in the heating water tank and the oil tank.
And the oil pump is provided with a variable frequency motor.
And the cooling water tank and the heating water tank are respectively connected with the water inlet of the water pump through electromagnetic valves and are respectively connected with the cooling subsystem through electromagnetic valves.
The invention has the beneficial effects that: the cooling water tank and the heating water tank are respectively arranged in the self-circulation subsystem, so that under the working condition of high temperature or low temperature, the lubricating oil can be heated and cooled, the lubricating oil is ensured to be at the optimal oil temperature, the normal operation of equipment is ensured, meanwhile, the cooling water in the self-circulation subsystem is recycled, the consumption of the circulating water is greatly reduced, the self-circulation subsystem is convenient to use in places with difficulty in water supplement, and the requirements of site infrastructure construction are reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1-an oil supply subsystem, 2-a cooling subsystem, 3-a lubrication subsystem, 4-a self-circulation subsystem, 5-a cooling water tank, 6-a heating water tank, 7-a water pump, 8-a flow switch, 9-a lubrication point, 10-an oil-water heat exchanger, 11-a water-water heat exchanger, 12-a temperature control valve, 13-an oil tank, 14-a coarse filter, 15-an oil pump, 16-a fine filter, 17-an overflow valve, 18-a cooler, 19-a sprayer, 20-a fan, 21-a heater and 22-an electromagnetic valve.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, a self-circulation lubricating and cooling system for petroleum equipment comprises an oil supply subsystem 1, a cooling subsystem 2, a lubricating subsystem 3 and a self-circulation subsystem 4, wherein the oil supply subsystem 1, the cooling subsystem 2 and the lubricating subsystem 3 form a lubricating oil circulation loop, the self-circulation subsystem 4 is connected with the cooling subsystem 2, the self-circulation subsystem 4 comprises a cooling water tank 5, a heating water tank 6 and a water pump 7, the cooling water tank 5 and the heating water tank 6 are connected with a water inlet of the water pump 7 in parallel and are connected with the cooling subsystem 2 through the water pump 7 to form a water path loop.
The system is divided into two working conditions of low-temperature (less than 25 ℃) and high-temperature (more than 40 ℃) starting, under the low-temperature working condition (less than 25 ℃), as the lubricating oil viscosity is large, the load of the oil pump 15 is large, the oil pump 15 needs to be kept to operate at a low rotating speed when being started, at the moment, the variable frequency motor on the oil pump 15 is started, the temperature sensor feeds back a low-temperature signal to the control center, the control center controls the variable frequency motor to keep low-power output, the flow of oil outlets on two sides is adjusted by the temperature control valve 12, oil liquid passes through the oil-water heat exchanger 10, when the oil liquid passes through the oil-water heat exchanger 10, the heater 21 in the water tank 6 works to heat water in the water tank, the water is fed into the oil-water heat exchanger 10 through. At the moment, the output power of the oil pump 15 is gradually increased, the flow of oil outlets at two sides is adjusted by the temperature control valve 12 according to the temperature of the oil, the flow of the oil flowing through the oil-water heat exchanger 10 is gradually reduced until the flow of the oil in the oil-water heat exchanger 10 is zero, the oil directly flows to the lubricating point 9 after passing through the temperature control valve 12, the heater 21 in the heating water tank 6 stops working, the water pump 7 also stops working, and the oil keeps the oil temperature by means of mutual friction in the flowing process and heat in the equipment operation.
Under the high-temperature working condition (more than 40 ℃), the lubricating oil has low viscosity, the load of the oil pump 15 is small, and the oil pump 15 can be started and operated at a normal rotating speed. At this time, the variable frequency motor on the oil pump 15 is started, the temperature sensor feeds back a high-temperature signal to the control center, the control center controls the variable frequency motor to keep normal power output, the flow of oil outlets on two sides is adjusted by the temperature control valve 12, so that oil passes through the oil-water heat exchanger 10, when the oil passes through the oil-water heat exchanger 10, the fan 20 works, water in the cooling water tank 5 is sent to the oil-water heat exchanger 10 by the water pump, the oil is continuously cooled until the temperature of the oil is between 25 ℃ and 40 ℃, then the flow of the oil outlets on two sides is adjusted by the temperature control valve 12 according to the temperature of the oil, the flow of the oil passing through the oil-water heat exchanger 10 is gradually reduced until the flow of the oil in the oil-water heat exchanger 10 is zero, and the fan 20 and.
The cooling water in the self-circulation subsystem 4 is recycled, so that the consumption of the circulating water is greatly reduced, the self-circulation subsystem is convenient to use in places with difficult water replenishing, and the requirements of site infrastructure construction are reduced.
The lubricating subsystem 3 comprises a flow switch 8 and lubricating points 9, the cooling subsystem 2 is connected with the lubricating points 9 through the flow switch 8, the lubricating points 9 are further connected with the oil supply subsystem 1, the flow switch 8 meets the requirements of equipment, the oil proportion of each lubricating point 9 is adjusted, the lubricating effect is achieved, and the oil consumption is reduced.
The cooling subsystem 2 comprises an oil-water heat exchanger 10, a water-water heat exchanger 11 and a temperature control valve 12, wherein an oil outlet at one side of the temperature control valve 12 is connected with a flow switch 8 through the oil-water heat exchanger 10, an oil outlet at the other side of the temperature control valve 12 is directly connected with the flow switch 8, the oil-water heat exchanger 10 and the water-water heat exchanger 11 are connected in parallel and form a water path loop with the self-circulation subsystem 4, the water-water heat exchanger 11 is also connected with a motor water cooling system and used for cooling a motor in the system to keep the motor in a proper temperature, and the temperature control valve 12 adjusts the flow of the oil outlets at the two sides according to the temperature of the oil to control the flow of the oil in the oil-water heat exchanger 10 and control the temperature rising or lowering speed of the.
The oil supply subsystem 1 comprises an oil tank 13, a coarse filter 14, an oil pump 15, a fine filter 16 and an overflow valve 17, wherein one end of the oil pump 15 is connected with the coarse filter 14 through a channel, the other end of the oil pump is connected with a temperature control valve 12 through the fine filter 16, one end of the overflow valve 17 is connected with the oil pump 15, the other end of the overflow valve is connected with the oil tank 13, a lubricating point 9 is connected with the oil tank 13 through a pipeline, the oil pump 15 adopts different starting rotating speeds according to different working conditions, impurities in oil are filtered through the coarse filter 14 and the fine filter 16, normal operation of equipment is guaranteed, power is provided through the oil pump 15, the oil is sent to the lubricating point 9 to lubricate the oil equipment, and after lubrication is completed, the oil flows back into the oil tank 13 through.
Be equipped with cooler 18, spray thrower 19, fan 20 in the cooling water tank 5, cooler 18, spray thrower 19 are connected with cooling subsystem 2 through solenoid valve 22 respectively, fan 20, cooler 18, spray thrower 19 are all installed in cooling water tank 5, fan 20 installs in 18 tops of cooler, fan 20's air-out direction is down, spray thrower 19 is installed in 18 below of cooler, spray thrower 19 sprays the direction up, under the drive of fan 20, the air current blows on cooler 18, spray cooling water on cooler 18 through the spray thrower, blow through the air current, the volatilization of cooling water with higher speed, the temperature of cooling water has been reduced, guarantee under high temperature environment, the cooling water can cool down fluid.
The heating water tank 6 and the oil tank 13 are internally provided with the heaters 21, the heaters 21 can be respectively added into the water in the heating water tank 6 and the oil in the oil tank 13, and the oil temperature can be kept in the optimal range under the low-temperature working condition through the matching of the heaters 21.
The oil pump 15 is provided with a variable frequency motor, so that the oil pump 15 can be adjusted to a starting rotating speed under different working conditions.
Cooling water tank 5 and heating water tank 6 are connected with the water inlet of water pump 7 through solenoid valve 22 respectively, and cooling water tank 5 and heating water tank 6 are connected with cooling subsystem 2 through solenoid valve 22 respectively, and through the cooperation of different solenoid valves, cooling water tank 5 is connected with water pump 7 when the high temperature operating mode, and heating water tank 6 is connected with water pump 7 when the low temperature operating mode, makes this system can work under different operating modes, has satisfied the lubricated demand that the oil was equipped with.
Claims (5)
1. A self-circulation lubricating and cooling system of petroleum equipment is characterized in that: the lubricating system comprises an oil supply subsystem (1), a cooling subsystem (2), a lubricating subsystem (3) and a self-circulation subsystem (4), wherein the oil supply subsystem (1), the cooling subsystem (2) and the lubricating subsystem (3) form a lubricating oil circulation loop; the self-circulation subsystem (4) is connected with the cooling subsystem (2); the self-circulation subsystem (4) comprises a cooling water tank (5), a heating water tank (6) and a water pump (7), wherein the cooling water tank (5) and the heating water tank (6) are connected with a water inlet of the water pump (7) in parallel and are connected with the cooling subsystem (2) through the water pump (7) to form a water path loop; a cooler (18), a sprayer (19) and a fan (20) are arranged in the cooling water tank (5), the cooler (18) and the sprayer (19) are respectively connected with the cooling subsystem (2) through electromagnetic valves (22), the fan (20), the cooler (18) and the sprayer (19) are all installed in the cooling water tank (5), the fan (20) is installed above the cooler (18), the air outlet direction of the fan (20) is downward, the sprayer (19) is installed below the cooler (18), and the spraying direction of the sprayer (19) is upward; the cooling water tank (5) and the heating water tank (6) are respectively connected with a water inlet of the water pump (7) through an electromagnetic valve (22), and the cooling water tank (5) and the heating water tank (6) are respectively connected with the cooling subsystem (2) through the electromagnetic valve (22); the cooling subsystem (2) comprises an oil-water heat exchanger (10), a water-water heat exchanger (11) and a temperature control valve (12), wherein an oil outlet at one side of the temperature control valve (12) is connected with a flow switch (8) through the oil-water heat exchanger (10), an oil outlet at the other side of the temperature control valve is directly connected with the flow switch (8), and the oil-water heat exchanger (10) and the water-water heat exchanger (11) are connected in parallel and form a water path loop with the self-circulation subsystem (4).
2. The self-circulating lubricating and cooling system for petroleum equipment as claimed in claim 1, wherein: the lubricating subsystem (3) comprises a flow switch (8) and a lubricating point (9), the cooling subsystem (2) is connected with the lubricating point (9) through the flow switch (8), and the lubricating point (9) is further connected with the oil supply subsystem (1).
3. The self-circulating lubricating and cooling system for petroleum equipment as claimed in claim 1, wherein: the oil supply subsystem (1) comprises an oil tank (13), a coarse filter (14), an oil pump (15), a fine filter (16) and an overflow valve (17), wherein one end of the oil pump (15) is connected with the coarse filter (14) through a channel, the other end of the oil pump is connected with the temperature control valve (12) through the fine filter (16), one end of the overflow valve (17) is connected with the oil pump (15), the other end of the overflow valve is connected with the oil tank (13), and a lubricating point (9) is connected with the oil tank (13) through a pipeline.
4. The self-circulating lubricating and cooling system for petroleum equipment as claimed in claim 1, wherein: heaters (21) are arranged in the heating water tank (6) and the oil tank (13).
5. A petroleum equipment self-circulating lubricating cooling system as claimed in claim 3, wherein: and a variable frequency motor is arranged on the oil pump (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811354022.2A CN109630856B (en) | 2018-11-14 | 2018-11-14 | Self-circulation lubricating and cooling system of petroleum equipment |
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| CN201811354022.2A CN109630856B (en) | 2018-11-14 | 2018-11-14 | Self-circulation lubricating and cooling system of petroleum equipment |
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| CN109630856A CN109630856A (en) | 2019-04-16 |
| CN109630856B true CN109630856B (en) | 2021-04-06 |
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| CN111940113B (en) * | 2020-08-17 | 2021-07-27 | 陕西正元麟电环保产业有限公司 | Lubricating and cooling system of ultrafine fly ash production equipment |
| US11920585B1 (en) * | 2022-09-01 | 2024-03-05 | EKU Power Drives Inc. | Dual loop lubrication and thermal management system for pumps |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120315A (en) * | 2016-11-28 | 2018-06-05 | 中国石油化工股份有限公司 | Circulating water cooling system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3286791A (en) * | 1964-09-25 | 1966-11-22 | Western Electric Co | Lubricating system |
| CN2690831Y (en) * | 2004-04-01 | 2005-04-06 | 石家庄天人化工设备有限责任公司 | Evaporation type condensation cooler |
| CN203036230U (en) * | 2012-12-05 | 2013-07-03 | 江苏兴达钢帘线股份有限公司 | Cooling and heating device of lubricating agent |
| CN204592829U (en) * | 2015-05-11 | 2015-08-26 | 山东华星石油化工集团有限公司 | Petroleum refining set lubricant oil temperature automatic energy-saving control device |
| CN204901305U (en) * | 2015-08-05 | 2015-12-23 | 宝鸡石油机械有限责任公司 | Triple pressure protection's fracturing pump lubrication oil circuit structure |
| CN106594499A (en) * | 2017-01-09 | 2017-04-26 | 天津海钢板材有限公司 | Heating method for cold-rolling process lubricant |
| CN207317569U (en) * | 2017-10-10 | 2018-05-04 | 昆山璟赫机电工程有限公司 | A kind of enclosed cooling tower prewarming circulating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108120315A (en) * | 2016-11-28 | 2018-06-05 | 中国石油化工股份有限公司 | Circulating water cooling system and method |
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