CN103822078A - Small circulating lubrication system cooled by using liquid nitrogen - Google Patents
Small circulating lubrication system cooled by using liquid nitrogen Download PDFInfo
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- CN103822078A CN103822078A CN201410053762.8A CN201410053762A CN103822078A CN 103822078 A CN103822078 A CN 103822078A CN 201410053762 A CN201410053762 A CN 201410053762A CN 103822078 A CN103822078 A CN 103822078A
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Abstract
A small circulating lubrication system cooled by using liquid nitrogen comprises a liquid nitrogen refrigerating system and a lubrication oil circulating system. The cooling speed of lubricating oil in an oil supply pipe of the lubrication system is increased; and moreover, the lubrication oil which is heated by using a plate radiator is recycled. The whole small circulating lubrication system is simple in structure and convenient to operate, and is economical and practical.
Description
Technical field
The present invention relates to the lubricated field of mechanical engineering, a kind of lubrication system that uses cooled with liquid nitrogen specifically, can be applied to laboratory friction and Study on Lubrication.
Background technique
The function of lubrication system is to carry quantitative clean lubricant oil to the part surface of doing relative movement, to realize liquid friction, reduces surface friction drag, alleviates the wearing and tearing of parts.And part surface is cleaned with cooling.
Use for laboratory lubrication system is made up of oil leab, oil pump and some valves etc. conventionally, needs lubricant oil heat or be cooled to different temperatures in order to simulate the test under different operating modes in laboratory.
The patent No. 200910065411.8 " lubricating oil cooling system ", it is cooling that this device uses cooling net cage to carry out lubricant oil, belongs to the field of cooling in wire manufacturing mechanism, and processing cost is higher, specific aim is stronger, is unsuitable for friction and lubrication experiment research under special operation condition in laboratory.
The patent No. 201220230055.8 " a kind of water-cooling type lubrication system ", this device is to utilize that current are logical to carry out the lubricant oil after heating up cooling, is not suitable for laboratory and does subzero oil experimental research.
The required low-temperature lubrication system of most laboratory stand is generally used crogenic box cutting oil, and lubricant oil flows into and treats lubricating fitting after oil circuit is by crogenic box, to reach the required lubricating condition of experiment.This method cooling effect is better, and experimental precision is higher, but crogenic box price is somewhat expensive, takies laboratory Area comparison large, and is connected more complicated with lubricating oil path, is not widely used at present.
Summary of the invention
Object of the present invention solves existing practical problem exactly, design a kind of cooling and lubricating system that is applied to laboratory, make the lubricant oil rate of cooling in lubrication system fuel supply line very fast, utilize panel radiator heating simultaneously, lubricant oil is realized and being recycled, whole system is simple in structure, easy to operate, economical and practical.
For achieving the above object, the present invention is achieved through the following technical solutions:
A small-sized circulating oil system of utilizing cooled with liquid nitrogen, comprises liquid nitrogen refrigerating system and oil circulation system;
Described oil circulation system, comprise oil feed pump, fuel feeding copper pipe, heat insulating box, receipts oil copper pipe, panel radiator, oil return copper pipe, oil well pump and fuel tank, the oil pumping mouth of oil feed pump passes into fuel tank, its oil outlet is treated lubricating fitting fuel feeding after by fuel feeding copper pipe break-through heat insulating box, receive oily copper pipe and collect lubricated lubricant oil later, and be connected with the filler opening of panel radiator, the oil outlet of panel radiator is by the oil return of oil return copper pipe, deliver to fuel tank through oil well pump oil pumping, form the cooling ramp cycle of lubricant oil;
Described liquid nitrogen refrigerating system is by adding thermal control heat engine structure and Pen Dan mechanism forms, described Pen Dan mechanism comprises liquid nitrogen vacuum flask and the air feed copper pipe of sealing, one end of air feed copper pipe passes in liquid nitrogen vacuum flask, its the other end passes into heat insulating box, the described thermal control heat engine structure that adds is made up of wire, contact type voltage regulator and heating core, heating core is arranged in liquid nitrogen vacuum flask, and is connected with contact type voltage regulator by wire.
On air feed copper pipe outer wall of the present invention, be arranged with thermal insulation pipe.
Heating core of the present invention is nickel chromium triangle heating core.
In liquid nitrogen vacuum flask of the present invention, be provided with the heating core bracket for supporting heating core.
Fuel-displaced copper pipe of the present invention is provided with fuel-displaced valve.
Cooled with liquid nitrogen device of the present invention is also provided with the supporting frame for supporting liquid nitrogen vacuum flask.
The water outlet of panel radiator of the present invention is positioned at the top of water intake.
The oil outlet of panel radiator of the present invention is positioned at the bottom of panel radiator.
Fuel-displaced copper pipe of the present invention is spiral setting at heat insulating box.
Beneficial effect of the present invention is:
1, in the past to the cooling crogenic box devices that adopt of lubrication system, easily reveal freon, befouling environment more.It is cooling, economical and practical that the present invention adopts the low temperature nitrogen of overflowing to distilling after liquid nitrogen heating to carry out lubrication system, and be conducive to environmental protection.
2, the present invention heats heating core by contact type voltage regulator, and heating core power can regulate, and then can control the rate of cooling of the escaped quantity realization control lubrication system of nitrogen.
3, the lubricant oil that the present invention is cooled after experiment is used passes in panel radiator, utilize water flow in panel radiator to return to normal temperature, to facilitate lubricant oil again to recycle, the water flow in panel radiator is for flowing from bottom to up, and this kind of set-up mode makes more easily being lowered the temperature of lubricant oil.
4, this apparatus structure is simple, convenient disassembly, and handling safety, is especially applicable to laboratory and uses.
5, fuel feeding copper pipe is spirality in heat insulating box, fully cooling to the lubricant oil in fuel feeding copper pipe to realize in heat insulating box low temperature nitrogen.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
In figure: 1, oil well pump, 2, oil return copper pipe, 3, fuel-displaced valve, 4, panel radiator, 5, receive oily copper pipe, 6, treat lubricating fitting, 7, fuel feeding copper pipe, 8, outlet pipe, 9, intake pipe, 10, valve, 11, end cap, 12, heat insulating box, 13, pipe joint II, 14, air feed copper pipe, 15, thermal insulation pipe, 16, oil feed pump, 17, contact type voltage regulator, 18, supporting frame I, 19, fuel tank, 20, pipe joint I, 21, bottle stopper, 22, liquid nitrogen vacuum flask, 23, heating core 24, supporting frame, 25, heating core bracket, 26, wire.
Embodiment
With reference to the accompanying drawings the present invention is described in further detail below.
As shown in the figure, in liquid nitrogen vacuum flask, fill liquid nitrogen, heating core is fixed in liquid nitrogen vacuum flask, and heating core is connected by wire with contact type voltage regulator.Described oil feed pump is fixed on fuel tank, is switched to and is treated that lubricating fitting is lubricated by fuel feeding copper pipe, and the size of fuel delivery can realize by the angle of controlling fuel-displaced valve rotation.On described oil return circuit, panel radiator is installed, the circulation by tap water in panel radiator makes the lubricant oil being cooled return to normal temperature.Described oil well pump is connected by oil return copper pipe with panel radiator oil outlet, and oil well pump is again pumped into lubricant oil in fuel tank and recycles to realize.
In heat insulating box, have two holes, be respectively into nitrogen mouth and go out nitrogen mouth.After heating core heating power, it is nitrogen that liquid nitrogen is warming up to-196 ℃ of distillations, after the nitrogen circulation heat insulating box of low temperature, carry out cooling to the lubricant oil in fuel feeding copper pipe, described fuel feeding copper pipe is spirality in heat insulating box, fully cooling to the lubricant oil in fuel feeding copper pipe to realize in heat insulating box low temperature nitrogen.
A small-sized circulating oil system of utilizing cooled with liquid nitrogen, comprises liquid nitrogen refrigerating system and oil circulation system.
Described liquid nitrogen refrigerating system mainly comprises liquid nitrogen vacuum flask 22, contact type voltage regulator 17, heating core 23, supporting frame I 18, supporting frame 24, thermal insulation pipe 15, heat insulating box 12, air feed copper pipe 14.Heating core 23 is connected by wire 26 with contact type voltage regulator 17, and heating core 23 is arranged in liquid nitrogen vacuum flask 22 by heating core bracket 25.Bottle stopper 21 has pore and inserts copper pipe, contains after liquid nitrogen and seal with bottle stopper 21 in liquid nitrogen vacuum flask 22, and bottle stopper 21 is that rubber material is to guarantee sealing.In heat insulating box 12 left end suction ports, insert copper pipe and be connected with air feed copper pipe 14 by pipe joint II 13, air feed copper pipe 14 outsides covers have thermal insulation pipe 15, with extraneous heat insulation, improve cooling effectiveness with the nitrogen of realizing low temperature.Fuel feeding copper pipe 7 is spirality in heat insulating box 12, so that lubricant oil is fully cooling in heat insulating box 12 in fuel feeding copper pipe 7.Heat insulating box 12 two ends are sealed by internal spiral end cap 11 respectively, are drilled with aperture to insert fuel feeding copper pipe 7 on end cap, and end cap is rubber material so that good seal, and fuel feeding copper pipe 7 is copper material.Air feed copper pipe 14 is connected by pipe joint I 20 with the copper pipe inserting in bottle stopper 21.Liquid nitrogen vacuum flask 22 is placed in respectively supporting frame I 18, supporting frame 24, upper with contact type voltage regulator 17, stable to realize handling safety.
Described oil circulation system mainly comprises fuel tank 19, oil feed pump 16, oil well pump 1, oil return copper pipe 2, receives oily copper pipe 5, fuel feeding copper pipe 7, fuel-displaced valve 3, valve 10, panel radiator 4, intake pipe 9, outlet pipe 8.Oil feed pump 16 is arranged on fuel tank 19, treats lubricating fitting 6 lubricant oil is provided to realize.Fuel-displaced valve 3 is arranged on fuel feeding copper pipe 7, to realize the size that regulates fuel delivery.Receive oily copper pipe 5 and access panel radiator 4 upper ends, oil return copper pipe 2 accesses panel radiator 4 lower ends, flows out smoothly treating in lubricating fitting 6 by Action of Gravity Field to realize lubricant oil, improves the working efficiency of oil well pump 1.Intake pipe 9 accesses the lower end of panel radiator 4, and outlet pipe 8 accesses the upper end of panel radiator 4, to guarantee that lubricant oil substantially returns to normal temperature from panel radiator 4 flows out.Oil return copper pipe 2 is connected by pipe joint with oil well pump 1.The oil outlet tube of oil well pump 1 accesses in fuel tank 19, uses to realize lubrication oil circulation.
When work, successively start oil well pump 1, oil feed pump 16, open panel radiator 4 water inlet valve 10, lubricant oil circulates in oil circulation system.The size of fuel delivery can realize by controlling the angle that fuel-displaced valve 3 rotates.Then open the switch of contact type voltage regulator 17, after heating core 23 heatings, liquid nitrogen vaporization becomes nitrogen, the nitrogen of low temperature enters in heat insulating box 12 after air feed copper pipe 14, in heat insulating box 12, after circulation, go out nitrogen mouth overflow by right-hand member, heat insulating box 12 circulates after nitrogen and carries out cooling to the lubricant oil in fuel feeding copper pipe 7.The voltage of regulation contact voltage regulator 17 can be controlled the escaped quantity of nitrogen, and then realizes the rate of cooling of controlling oil circulation system.Close successively after hours contact type voltage regulator 17 switches, oil feed pump 16 switches, oil well pump 1 switch, finally close panel radiator 4 water inlet valve 10.
Claims (9)
1. a small-sized circulating oil system of utilizing cooled with liquid nitrogen, comprises liquid nitrogen refrigerating system and oil circulation system, it is characterized in that:
Described oil circulation system, comprise oil feed pump (16), fuel feeding copper pipe (7), heat insulating box (12), receive oily copper pipe (5), panel radiator (4), oil return copper pipe (2), oil well pump (1) and fuel tank (19), the oil pumping mouth of oil feed pump (16) passes into fuel tank (19), its oil outlet is treated lubricating fitting fuel feeding after by fuel feeding copper pipe (7) break-through heat insulating box (12), receive oily copper pipe (5) and collect lubricated lubricant oil later, and be connected with the filler opening of panel radiator (4), the oil outlet of panel radiator (4) is by oil return copper pipe (2) oil return, deliver to fuel tank (19) through oil well pump (1) oil pumping, form the cooling ramp cycle of lubricant oil,
Described liquid nitrogen refrigerating system is by adding thermal control heat engine structure and Pen Dan mechanism forms, described Pen Dan mechanism comprises liquid nitrogen vacuum flask (22) and the air feed copper pipe (14) of sealing, one end of air feed copper pipe (14) passes in liquid nitrogen vacuum flask (22), its the other end passes into heat insulating box (12), the described thermal control heat engine structure that adds is made up of wire (26), contact type voltage regulator (17) and heating core (23), heating core (23) is arranged in liquid nitrogen vacuum flask (22), and is connected with contact type voltage regulator (17) by wire (26).
2. a kind of small-sized circulating oil system of utilizing cooled with liquid nitrogen as claimed in claim 1, is characterized in that: on described air feed copper pipe (14) outer wall, be arranged with thermal insulation pipe (15).
3. a kind of small-sized circulating oil system of utilizing cooled with liquid nitrogen as claimed in claim 1, is characterized in that: described heating core (23) is nickel chromium triangle heating core.
4. a kind of small-sized circulating oil system of utilizing cooled with liquid nitrogen as claimed in claim 1, is characterized in that: in described liquid nitrogen vacuum flask (22), be provided with the heating core bracket (25) for supporting heating core (23).
5. a kind of small-sized circulating oil system of utilizing cooled with liquid nitrogen as claimed in claim 1, is characterized in that: described fuel-displaced copper pipe (7) is provided with fuel-displaced valve (3).
6. a kind of small-sized circulating oil system of utilizing cooled with liquid nitrogen as claimed in claim 1, is characterized in that: described cooled with liquid nitrogen device is also provided with the supporting frame (24) for supporting liquid nitrogen vacuum flask (22).
7. a kind of small-sized circulating oil system of utilizing cooled with liquid nitrogen as claimed in claim 1, is characterized in that: the water outlet of described panel radiator (4) is positioned at the top of water intake.
8. a kind of small-sized circulating oil system of utilizing cooled with liquid nitrogen as claimed in claim 1, is characterized in that: the oil outlet of described panel radiator (4) is positioned at the bottom of panel radiator (4).
9. a kind of small-sized circulating oil system of utilizing cooled with liquid nitrogen as claimed in claim 1, is characterized in that: described fuel-displaced copper pipe (7) is spiral setting at heat insulating box (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410053762.8A CN103822078B (en) | 2014-02-18 | 2014-02-18 | A kind of small-sized circulating oil system utilizing cooled with liquid nitrogen |
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| CN201410053762.8A CN103822078B (en) | 2014-02-18 | 2014-02-18 | A kind of small-sized circulating oil system utilizing cooled with liquid nitrogen |
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| CN103822078A true CN103822078A (en) | 2014-05-28 |
| CN103822078B CN103822078B (en) | 2016-01-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698004A (en) * | 2016-04-07 | 2016-06-22 | 马宁 | Nitrogen tank gas transportation mechanism |
| CN113958850A (en) * | 2021-09-17 | 2022-01-21 | 益路恒丰衡水沥青科技有限公司 | Lubricating system of road surface acceleration loading equipment |
Citations (7)
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| US3321910A (en) * | 1964-09-04 | 1967-05-30 | Rolls Royce | Gas turbine lubrication |
| US20060049274A1 (en) * | 2004-09-03 | 2006-03-09 | Nitrocision, L.L.C. | System and method for delivering cryogenic fluid |
| CN102029551A (en) * | 2010-11-18 | 2011-04-27 | 长沙理工大学 | Lubricating and cooling method for cutting process and device thereof |
| CN202532141U (en) * | 2012-04-26 | 2012-11-14 | 成都赛乐化新机电有限公司 | High-risk medium reaction kettle big flow high temperature and high pressure oil station |
| CN202598082U (en) * | 2012-05-08 | 2012-12-12 | 广东明阳风电产业集团有限公司 | Bearing lubrication system |
| CN202733390U (en) * | 2012-07-14 | 2013-02-13 | 马鞍山市博威液压机械制造有限责任公司 | Automatic lubricating system of universal shaft |
| CN203757353U (en) * | 2014-02-18 | 2014-08-06 | 河南科技大学 | Small circulating lubrication system adopting liquid nitrogen for cooling |
-
2014
- 2014-02-18 CN CN201410053762.8A patent/CN103822078B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3321910A (en) * | 1964-09-04 | 1967-05-30 | Rolls Royce | Gas turbine lubrication |
| US20060049274A1 (en) * | 2004-09-03 | 2006-03-09 | Nitrocision, L.L.C. | System and method for delivering cryogenic fluid |
| CN102029551A (en) * | 2010-11-18 | 2011-04-27 | 长沙理工大学 | Lubricating and cooling method for cutting process and device thereof |
| CN202532141U (en) * | 2012-04-26 | 2012-11-14 | 成都赛乐化新机电有限公司 | High-risk medium reaction kettle big flow high temperature and high pressure oil station |
| CN202598082U (en) * | 2012-05-08 | 2012-12-12 | 广东明阳风电产业集团有限公司 | Bearing lubrication system |
| CN202733390U (en) * | 2012-07-14 | 2013-02-13 | 马鞍山市博威液压机械制造有限责任公司 | Automatic lubricating system of universal shaft |
| CN203757353U (en) * | 2014-02-18 | 2014-08-06 | 河南科技大学 | Small circulating lubrication system adopting liquid nitrogen for cooling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698004A (en) * | 2016-04-07 | 2016-06-22 | 马宁 | Nitrogen tank gas transportation mechanism |
| CN113958850A (en) * | 2021-09-17 | 2022-01-21 | 益路恒丰衡水沥青科技有限公司 | Lubricating system of road surface acceleration loading equipment |
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Granted publication date: 20160106 Termination date: 20170218 |