CN104653268A - Device and method for cooling visual engine with quartz glass cylinder sleeve - Google Patents
Device and method for cooling visual engine with quartz glass cylinder sleeve Download PDFInfo
- Publication number
- CN104653268A CN104653268A CN201410848297.7A CN201410848297A CN104653268A CN 104653268 A CN104653268 A CN 104653268A CN 201410848297 A CN201410848297 A CN 201410848297A CN 104653268 A CN104653268 A CN 104653268A
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- China
- Prior art keywords
- cylinder sleeve
- water cavity
- radiating fin
- support housing
- housing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a visual engine and particularly relates to a device and a method for cooling a visual engine with a quartz glass cylinder sleeve. The device comprises a support housing of the visual engine and is characterized in that a circulation water cavity housing covering the outer side of the support housing is fixed to the periphery of the support housing; symmetrical water inlets are formed in the lower end of the circulation water cavity housing; symmetrical water outlets are formed in two sides of the circulation water cavity housing; electromagnetic valves are arranged at the water inlets and the water outlets; a water cavity is formed in the circulation water cavity housing; a temperature sensor is arranged in the water cavity; first cooling fins are arranged on two sides of the supporting housing in the circulation water cavity housing and are fixedly connected to the inner side of a heat conduction tube array; the outer side of the heat conduction tube array is fixedly connected to second cooling fins. The device can be used for reducing and controlling the temperature of the quartz glass cylinder sleeve.
Description
Technical field
The present invention relates to visual motor, be specifically related to cooling unit that a kind of cylinder sleeve is the visual motor of silica glass and method, for reducing the temperature with control silica glass cylinder sleeve, particularly weaken silica glass because temperature changes thus the thermal stress brought fast; This cooling unit is applied to efficient PLIF technology and carries out data capture to the combustion position in cylinder.Relate to optical measurement means, detection technique, the state-of-the-art technology of multiple subjects such as heat control technique and heat transfer means.
Background technique
The development of a new generation's combustion in IC engine Theory and technology makes the technology of diesel engine and petrol engine more and more close, motor may follow change according to fuel combination composition to organize different combustion manners, therefore must fully realize spray characteristics and the combustion characteristic of various fuel combination.
Optical engine is a type of visual motor, its main purpose is the actual operating mode that may be close to actual engine maximum to the greatest extent, by transparent piston or cylinder sleeve, effectively utilize the information that the means such as LIF, induced with laser phosphorescence, ultra-speed shooting, Raman scattering obtain mixing and burning in cylinder, have directive significance for the fuel design of motor and optimization; Current, external more internal-combustion engine research organization and mechanism all set up optical engine visual testing platform, serve active and effective effect to the structural design of motor and the development of combustion theory, the domestic research in this one side is in the elementary stage at present.
The optical engine used in common test, usually cylinder sleeve is made with silica glass, usually measure and observe the activity phenomenons such as a series of burnings in cylinder by this transparent cylinder sleeve, thisly effective directly perceived to measure and Observations Means, foundation is effectively provided for the research and development of the motor of reality and trial-production; Fuel is when motor combustion, the heat major part heat transmission produced wherein gives the cylinder sleeve that transparency silica glass material makes, test to make result close to reality and making cylinder sleeve to work normally and to use, naturally need to cool necessarily this transparent cylinder sleeve, in order to weaken whole casing wall heat gradient and therefore and produce thermal stress; The high-temperature fuel gas that inboard wall of cylinder liner can reach 2300-2800K with maximum temperature contacts, and too high temperature and excessive temperature gradient produce huge thermal distortion by making cylinder liner, are destroyed with the normal clearance of piston group, and it is severe that lubrication circumstances becomes, and wearing and tearing increase; Because the heat that cylinder liner spreads out of and cooling method thereof determine temperature levels and the temperature field of cylinder liner internal wall, the former plays a decisive role to lubrication, wearing and tearing, piston clearance, and the latter determines the thermal stress size of cylinder liner.
Summary of the invention
The object of the invention is to the operating temperature reducing quartzy cylinder sleeve, strengthen its effective mechanical strength, make experiment operating conditions more close to real case, increase visual form as much as possible simultaneously, make DATA REASONING and gather more perfect.
A kind of cylinder sleeve is the cooling unit of the visual motor of silica glass, comprise the support housing of visual motor, it is characterized in that: the surrounding of described support housing is fixed with the circulating water cavity housing be wrapped in outside support housing, circulating water cavity housing lower end has symmetrical water intake, circulating water cavity housing both sides have symmetrical water outlet, water intake and water outlet are provided with solenoid valve, circulating water cavity enclosure interior forms water cavity, temperature transducer is provided with in water cavity, the support housing both sides being positioned at circulating water cavity housing are furnished with the first radiating fin, first radiating fin is fixedly connected with inside heat conductive tube array, be fixedly connected with the second radiating fin outside heat conductive tube array.
Further, the height of support housing is 2/3rds of visual cylinder sleeve of engine height.
Further, described first radiating fin area is 8cm2 to 12cm2; First radiating fin is attached to support housing both sides, and form curved surface, curved surface two ends contact with cylinder sleeve, and the first radiating fin adopts the metal hot plate of waterproof, anti-corrosion treatment.
Further, described first radiating fin is attached to support housing both sides, forms curved surface and specifically refers to: on the face that the first radiating fin and support housing contact with cylinder sleeve, smear silicone grease, then be fixed in support housing both sides.
Further, described heat conductive tube array is that 5 row 3 arrange to 5 row 5 and arrange, and heat conductive tube adopts the pure copper tube of flat form, and the inner combining form adopting vacuum and heat conducting liquid, is arranged symmetrically in support housing both sides.
Further, the area of described second radiating fin is 9cm2 to 14cm2, and the second radiating fin adopts the metal hot plate of waterproof, anti-corrosion treatment.
Further, circulating water cavity body height accounts for 1/1 to two/3rd of visual cylinder sleeve of engine, uses seal ring to seal with the joint of support housing.
Further, the position of water cavity inside 1/2nd height, presses close to water cavity shell inner surface and is provided with temperature inductor.
Further, the place of water cavity housing lower surface 1/2nd width is provided with water intake, and mouth of a river place is provided with solenoid valve, the At The Height of its side 4/5ths is provided with water outlet simultaneously, mouth of a river place is provided with solenoid valve, and all structures distribute symmetrically, and both sides layout is completely the same.
The setting height of the various device of whole cooling system has clear and definite meaning, the height of support housing is 2/3rds of visual cylinder sleeve of engine height, first be the space in order to leave the repacking of optical engine upper piston area and operation for, effectively secure whole body simultaneously, make running more steady, reduce the unsafe factor brought because of experimental implementation; Circulating water cavity body height accounts for 1/1 to two/3rd of visual cylinder sleeve of engine, first water cavity housing not easily excessive object be in order to save experiment repacking cost, less unnecessary waste, secondly, cooling main portions be quartzy material, therefore concentrate heat exchange is carried out to this position, so be highly not suitable for too high, also can not ether low, radiating efficiency is declined; The position of water cavity inside 1/2nd height, press close to water cavity shell inner surface and be provided with temperature inductor, first temperature transducer is not easily in water cavity turning or too low position and too high position, because the average actual temperature of water body accurately cannot be reflected, bring false command to the adjustment of solenoid valve aperture below, secondly average in this position water temperature, not easily because the extreme condition such as overheated damages temperature transducer; The place of water cavity housing lower surface 1/2nd width is provided with water intake, mouth of a river place is provided with solenoid valve, the At The Height of its side 4/5ths is provided with water outlet simultaneously, first water intake cannot be arranged on the random position of water cavity housing lower surface, flow can be made so uneven, the heat exchange of forming section region is strong, the rough sledding that part area heat exchange is weak, secondly water outlet cannot be arranged on lower position, water cavity water-holding quantity can be caused like that less, effectively cannot utilize the advantage of the large specific heat capacity of water, not reach the effective speed of heat exchange; Whole system structure adopts the mounting structure of symmetric type, avoids the experimental result caused because temperature distributing disproportionation is even and measures the damage do not lived accurately with to optical engine, reduce because cool the additional unfavorable factor brought.
Accompanying drawing explanation
Fig. 1 is visual engine-cooling system front view.
Fig. 2 is visual engine-cooling system plan view.
1, solenoid valve; 2, water intake; 3, water cavity; 4, temperature inductor; 5, water outlet; 6, heat conductive tube; 7, support housing; 8, side uprights; 9, oil ring; 10, the transverse section passed of laser; 11, tracer injection valve; 12, cylinder cap form; 13, laser; 14, fuel injector; 15, eyeglass; 16, sapphire ring; 17, cylinder sleeve; 18, reflecting mirror; 19, water cavity housing; 20, the first radiating fin; 21, the second radiating fin; 22, cylinder sleeve.
Embodiment
1, as shown in accompanying drawing 1,2, the first radiating fin 20 is installed on support housing 7 both sides, presents arc-shaped, smear silicone grease, the first radiating fin 20 can be fitted and close contact preferably with support housing 7 and cylinder sleeve 17; First radiating fin 20 surface soldered has heat conductive tube array, according to the size and shape of optical engine, the first radiating fin 20 welds the heat conductive tube array rearranged by copper flat heat conductive tube 6 horizontal Tile of 15-25 root 6mm.
2, the second radiating fin 21 is welded with at the opposite side of heat conductive tube array, surface through anti-corrosion treatment, due to consider outside water cavity 3 not easily excessive, therefore adopt surface area be greater than the first radiating fin 20 plate and fin type radiating fin, increase the area of contact with water, strengthen heat exchange.
3, water cavity housing 19 is engaged by seal ring effectively with motor support housing 7, water cavity 3 inside is provided with temperature inductor 4, specifically be placed on the height and position of water cavity 3 inside 1/2nd, according to symmetry principle, now only a temperature inductor 4 need be set, not need other setting at opposite side; This temperature inductor 4 connects outside signal acquiring system, is provided with water intake 2 and the water outlet 5 of " bottom in and top out ", is provided with solenoid valve 1, carries out current exchange from the bottom to top in water intake 2 and water outlet 5 at water cavity housing 19, strengthens recuperated cycle; Simultaneously according to the feedback information of different water temperature, the aperture of Controlling solenoid valve 1 regulates water velocity and flow, in time rapidly by transfer of heat.
4, according to symmetry principle, the first identical radiating fin 20 and the second radiating fin 21 is being set equally with the opposite side of cylinder cap vertical axis symmetry, heat conductive tube array, and water cavity housing 19, the water intake 2 of solenoid valve 1 and same position and water outlet 5; Meanwhile, according to the difference of different optical engine visualization window, also can except the visual opening in side, all the other can arrange identical structure and come, around outside cooling, to reach better experiment effect.
System operation:
1, optical engine is opened, and prepares warming-up; First will inject part water in water cavity before this, check the sealing of water cavity housing and support housing, the phenomenon of leaking if occur, shutdown in time checks, until there is not water clock for it, then is welded and fixed; Check the stability of optical engine housings support simultaneously, guarantee that experiment is carried out smoothly.
2, optical engine is started working, circulating water starts to flow in water cavity, lower water intake water inlet, the water outlet of upper water-out mouth, the signal acquiring system in outside is transferred to by the data of the temperature inductor collection in water cavity, start the aperture of the solenoid valve controlling water intake and water outlet thus, when temperature constantly raises, the aperture of water intake constantly becomes large, water outlet still just keeps certain aperture constant, make in water cavity, there is larger water volume, absorb the heat passed out from heat conductive tube and radiating fin fully; When optical engine runs to steady working condition, continue to increase the aperture of water outlet solenoid valve, the speed of so continuous quickening water circulation, timely the larger specific heat capacity of heat by water is passed.
Constantly carrying out 3, finally with experiment, intake-outlet solenoid valve aperture reaches maximum, heat transfer intensity reaches maximum effect, reduce the cylinder sleeve temperature of optical engine timely and effectively, the data making experiment measuring more accurately and effectively, reduce experiment that optical engine that steel bushing made by silica glass causes not due to hot strength dangerous and measure inaccurate unfavorable factor simultaneously.
Beneficial effect of the present invention:
1, the form of heat conductive tube array radiation fin is adopted, the metals such as the especially simple copper of other type of cooling, aluminium can be compared, the heat pipe of unit weight can transmit the heat of several order of magnitude more, larger heat biography rate can be obtained with the less temperature difference, this structure is simple simultaneously, due to the peculiar mechanism of heat pipe, the heat exchange between hot fluid is carried out outside pipe, carries out augmentation of heat transfer so extremely easily.In addition inside heat pipe working medium is very easily vaporized and is condensed, and starts very fast.
2, the method for smearing silicone grease is adopted to intercept air between the first radiating fin and cylinder sleeve to ensure effective sealing and heat transfer, in order to ensure that radiating fin is fitted effectively by the form of parcel and cylinder sleeve; Make the first radiating fin can effectively utilize the superior thermal conductivity energy of silica glass, by heat conducting mode, heat is passed to the first radiating fin rapidly; Water cavity adopts the pipeline mode of " bottom in and top out ", the efficient cylinder sleeve of reduction fast temperature, reduce the lethal damage brought to quartz material because of high temperature, make experimental simulation condition more close to actual conditions, pass to by temperature inductor the mode that controller manipulates solenoid valve aperture simultaneously, current exchange velocity can be ensured at any time, make larger temperature window, the temperature range of effective expanding test, ensures the accuracy of laser-measurement.
3, this cooling unit structure is simple, and compound mode is easy to implement, and cost is lower; Experimentation is easy to operation simultaneously, flat heat conductive tube array can be positioned in water cavity easily, second radiating fin makes the heat of heat conductive tube array shift more fast, its small volume taken, save the space of experiment, and optical engine is not needed to do too large repacking, just can obtain good cooling effect.
4, the type of cooling described in patent is adopted, the length of vitreous quatz cylinder sleeve can be increased to a certain extent, weaken the unfavorable factor that high temperature brings, to reach taking into account in visual field and mechanical strength, simultaneously due to the increase of quartzy cylinder sleeve length, naturally the visualization window increasing optical engine of appropriateness, is convenient to measure in a big way, has larger help to the improvement of experiment.
5, being improved by experimental setup described in patent, the temperature of silica glass can be effectively reduced, verify through theoretical and laboratory data, can reduce when not using this cooling system between 10 four to percent three ten six cylinder liner surface temperature.
Claims (9)
1. a cylinder sleeve is the cooling unit of the visual motor of silica glass, comprise the support housing of visual motor, it is characterized in that: the surrounding of described support housing is fixed with the circulating water cavity housing be wrapped in outside support housing, circulating water cavity housing lower end has symmetrical water intake, circulating water cavity housing both sides have symmetrical water outlet, water intake and water outlet are provided with solenoid valve, circulating water cavity enclosure interior forms water cavity, temperature transducer is provided with in water cavity, the support housing both sides being positioned at circulating water cavity housing are furnished with the first radiating fin, first radiating fin is fixedly connected with inside heat conductive tube array, be fixedly connected with the second radiating fin outside heat conductive tube array.
2. a kind of cylinder sleeve as claimed in claim 1 is the cooling unit of the visual motor of silica glass, it is characterized in that: the height of support housing is 2/3rds of visual cylinder sleeve of engine height.
3. a kind of cylinder sleeve as claimed in claim 1 is the cooling unit of the visual motor of silica glass, it is characterized in that: described first radiating fin area is 8cm2 to 12cm2; First radiating fin is attached to support housing both sides, and form curved surface, curved surface two ends contact with cylinder sleeve, and the first radiating fin adopts the metal hot plate of waterproof, anti-corrosion treatment.
4. a kind of cylinder sleeve as claimed in claim 1 is the cooling unit of the visual motor of silica glass, it is characterized in that: described first radiating fin is attached to support housing both sides, form curved surface specifically to refer to: on the face that the first radiating fin and support housing contact with cylinder sleeve, smear silicone grease, then be fixed in support housing both sides.
5. a kind of cylinder sleeve as claimed in claim 1 is the cooling unit of the visual motor of silica glass, it is characterized in that: described heat conductive tube array is that 5 row 3 arrange to 5 row 5 and arrange, heat conductive tube adopts the pure copper tube of flat form, the inner combining form adopting vacuum and heat conducting liquid, is arranged symmetrically in support housing both sides.
6. a kind of cylinder sleeve as claimed in claim 1 is the cooling unit of the visual motor of silica glass, it is characterized in that: the area of described second radiating fin is 9cm2 to 14cm2, and the second radiating fin adopts the metal hot plate of waterproof, anti-corrosion treatment.
7. a kind of cylinder sleeve as claimed in claim 1 is the cooling unit of the visual motor of silica glass, it is characterized in that: circulating water cavity body height accounts for 1/1 to two/3rd of visual cylinder sleeve of engine, use seal ring to seal with the joint of support housing.
8. a kind of cylinder sleeve as claimed in claim 1 is the cooling unit of the visual motor of silica glass, it is characterized in that: the position of water cavity inside 1/2nd height, presses close to water cavity shell inner surface and is provided with temperature inductor.
9. a kind of cylinder sleeve as claimed in claim 1 is the cooling unit of the visual motor of silica glass, it is characterized in that: the place of water cavity housing lower surface 1/2nd width is provided with water intake, mouth of a river place is provided with solenoid valve, the At The Height of its side 4/5ths is provided with water outlet simultaneously, mouth of a river place is provided with solenoid valve, all structures distribute symmetrically, and both sides layout is completely the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848297.7A CN104653268A (en) | 2014-12-31 | 2014-12-31 | Device and method for cooling visual engine with quartz glass cylinder sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848297.7A CN104653268A (en) | 2014-12-31 | 2014-12-31 | Device and method for cooling visual engine with quartz glass cylinder sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104653268A true CN104653268A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410848297.7A Pending CN104653268A (en) | 2014-12-31 | 2014-12-31 | Device and method for cooling visual engine with quartz glass cylinder sleeve |
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| Country | Link |
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| CN (1) | CN104653268A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257421A (en) * | 2015-10-10 | 2016-01-20 | 天津大学 | Visual independent engine cylinder liner |
| CN105738088A (en) * | 2016-01-25 | 2016-07-06 | 北京航空航天大学 | Organic glass housing structure used for inducer visualization test |
| CN115962595A (en) * | 2023-03-16 | 2023-04-14 | 河南工学院 | Refrigerator car based on liquid nitrogen refrigeration and liquid nitrogen refrigeration system |
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|---|---|---|---|---|
| US6561152B2 (en) * | 2000-07-28 | 2003-05-13 | Institut Francais Du Petrole | Optical test engine, in particular for combustion parameters measurements |
| KR100468261B1 (en) * | 2004-10-30 | 2005-01-31 | 주식회사 코리아엔진텍 | Combustion Visual Apparatus of Internal Combustion Engine |
| CN2874396Y (en) * | 2005-10-21 | 2007-02-28 | 中国科学院理化技术研究所 | Pulse heat pipe radiator using low-melting point metal and common fluid as flowing working medium |
| CN101608575A (en) * | 2009-06-30 | 2009-12-23 | 奇瑞汽车股份有限公司 | A kind of optical engine |
| CN101696651A (en) * | 2009-11-03 | 2010-04-21 | 奇瑞汽车股份有限公司 | Cooling method and cooling device for optical engine |
| CN201826972U (en) * | 2010-10-09 | 2011-05-11 | 奇瑞汽车股份有限公司 | Sealing device for transparent cylinder sleeve of optical engine |
-
2014
- 2014-12-31 CN CN201410848297.7A patent/CN104653268A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6561152B2 (en) * | 2000-07-28 | 2003-05-13 | Institut Francais Du Petrole | Optical test engine, in particular for combustion parameters measurements |
| KR100468261B1 (en) * | 2004-10-30 | 2005-01-31 | 주식회사 코리아엔진텍 | Combustion Visual Apparatus of Internal Combustion Engine |
| CN2874396Y (en) * | 2005-10-21 | 2007-02-28 | 中国科学院理化技术研究所 | Pulse heat pipe radiator using low-melting point metal and common fluid as flowing working medium |
| CN101608575A (en) * | 2009-06-30 | 2009-12-23 | 奇瑞汽车股份有限公司 | A kind of optical engine |
| CN101696651A (en) * | 2009-11-03 | 2010-04-21 | 奇瑞汽车股份有限公司 | Cooling method and cooling device for optical engine |
| CN201826972U (en) * | 2010-10-09 | 2011-05-11 | 奇瑞汽车股份有限公司 | Sealing device for transparent cylinder sleeve of optical engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257421A (en) * | 2015-10-10 | 2016-01-20 | 天津大学 | Visual independent engine cylinder liner |
| CN105738088A (en) * | 2016-01-25 | 2016-07-06 | 北京航空航天大学 | Organic glass housing structure used for inducer visualization test |
| CN115962595A (en) * | 2023-03-16 | 2023-04-14 | 河南工学院 | Refrigerator car based on liquid nitrogen refrigeration and liquid nitrogen refrigeration system |
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Application publication date: 20150527 |