CN101858516A - Lighting system applied to liquid oxygen environment - Google Patents
Lighting system applied to liquid oxygen environment Download PDFInfo
- Publication number
- CN101858516A CN101858516A CN 201010184852 CN201010184852A CN101858516A CN 101858516 A CN101858516 A CN 101858516A CN 201010184852 CN201010184852 CN 201010184852 CN 201010184852 A CN201010184852 A CN 201010184852A CN 101858516 A CN101858516 A CN 101858516A
- Authority
- CN
- China
- Prior art keywords
- internal layer
- cover plate
- attemperator
- liquid oxygen
- saturating window
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention provides a lighting system applied to liquid oxygen environment, which mainly solves the problem that the conventional lighting system cannot work in low-temperature high-pressure liquid oxygen environment. The lighting system applied to the liquid oxygen environment comprises a lighting device consisting of an LED and peripheral circuit electronic components; the lighting device is fixed in an internal layer heat-insulating device which comprises an internal layer transparent window, an internal layer shell 9 and an internal layer cover plate; the internal layer transparent window and the internal layer cover plate are fixedly arranged on two sides of the internal layer shell; the internal layer transparent window is arranged on one side close to an optical lens; the internal layer cover plate is arranged on one side close to an image sensor; and the internal cover plate is provided with an internal layer outlet hole for a transmission line of the image sensor.
Description
Technical field
The present invention relates to a kind of illuminator, be specifically related to a kind of can be in liquid oxygen environment or liquid nitrogen environment the illuminator of operate as normal, but the temperature range of this system's operate as normal is-196 ℃～+ 60 ℃, maximum working pressure (MWP) is 0.6Mpa.
Background technology
The minimum temperature of existing LED lighting device nominal is minimum to be-40 ℃, its normal lowest limit temperature of using is generally at-60～-50 ℃, the main cause that is subject to this temperature is the minimum serviceability temperature requirement of LED and electronic devices and components, be lower than that the probability of malfunction of electronic devices and components will improve greatly after this temperature, cause the illuminator can't operate as normal.
At present under the technical conditions, the serviceability temperature of LED light emitting diode and peripheral circuit electronic devices and components can't produce qualitative change adapting to low temperature environment, and does not also have corresponding supporting any attemperator on the market to reach the purpose of low temperature environment work.
And liquid oxygen is a caerulescent liquid, and has over paramagnetism, usually air pressure 101.325kPa lower density 1.141g/cm
3, freezing point-222.65 ℃, boiling point is-182.96 ℃.Because its low-temperature characteristics, liquid oxygen can make the material of its contact become and be highly brittle, and existing illuminator when producing vibrations, also will directly cause the damage of lighting system structure except that the temperature requirement that can't satisfy this environment.
Summary of the invention
The invention provides a kind of illuminator that is applied in the low temperature liquid oxygen environment, mainly solved the problem that existing lighting system structure can't be worked in the cryogenic high pressure liquid oxygen environment.
Technical solution of the present invention is as follows:
This illuminator that is applied in the liquid oxygen environment comprises the lighting device of being made up of LED light emitting diode and peripheral circuit electronic devices and components, lighting device is fixed in the internal layer attemperator, the internal layer attemperator comprises the saturating window of internal layer, internal layer shell 9 and internal layer cover plate, saturating window of internal layer and internal layer cover plate are fixedly set in the internal layer shell both sides, the saturating window of internal layer is arranged near the first side of optical frames, and the internal layer cover plate is arranged near imageing sensor one side; Described internal layer cover plate is provided with the internal layer wire hole that the imageing sensor transmission line is used.
According to concrete environmental requirement, if operating ambient temperature is low and pressure when big, need to adopt the double-layer heat insulation device, at this moment the internal layer attemperator is fixed in the outer attemperator, outer attemperator comprises outer saturating window, outer casing and outer cover plate, outer saturating window and outer cover plate are fixedly set in the outer casing both sides, and outer saturating window is arranged near saturating window one side of internal layer, and outer cover plate is arranged near internal layer cover plate one side; Described outer cover plate is provided with the outer wire hole that the imageing sensor transmission line is used.
The cavity that forms between internal layer attemperator and the lighting device is filled polyurethane or is vacuumized.The cavity that forms between internal layer attemperator and the outer attemperator is filled polyurethane.
Seal with the indium silk between internal layer shell and the internal layer cover plate, seal with the indium silk between the saturating window of internal layer shell and internal layer; Seal with the indium silk between outer casing and the outer cover plate, seal with the indium silk between outer casing and the outer saturating window, all available indium silk of all seam crossings seals in this system, to guarantee its heat-insulating property.
Outer saturating window and outer cover plate are fixedly set in the outer casing both sides by being threaded, saturating window of internal layer and internal layer cover plate are fixedly set in the internal layer shell both sides by being threaded; Lighting device is fixed in the internal layer attemperator by being threaded.
Being threaded of outer casing partly is provided with polytetrafluoroethylene (PTFE) heat-insulating and sealing circle with screw contact both sides inside and outside outer casing; Being threaded of internal layer shell partly is provided with polytetrafluoroethylene (PTFE) heat-insulating and sealing circle with screw contact both sides inside and outside internal layer shell; Lighting device is provided with screwed hole near internal layer shell one side, screw is fixed in lighting device in the internal layer attemperator by internal layer shell and screwed hole, screw is provided with the adiabatic mechanism of wired contact near screwed hole one side, and screw is established near the internal layer shell both sides and all is equipped with polytetrafluoroethylene (PTFE) heat-insulating and sealing circle.
Internal layer cover plate and outer cover plate can directly be selected sealing plug for use.
The invention has the advantages that:
This illuminator is arranged at lighting device and adopts the polyurethane expanded material to fill the double-deck adiabatic heat-insulation inside configuration that forms, solve the low temperature resistant problem of lighting device effectively, having expanded the environment for use temperature of lighting device, can be operate as normal under-190～-170 ℃ the extreme low temperature hyperbaric environment in temperature.
Description of drawings
Fig. 1 is a lighting system structure schematic diagram of the present invention;
Fig. 2 is a threaded connection place concrete structure schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail:
This is applied to the illuminator in the liquid sub environment, comprise the lighting device of forming by LED light emitting diode 11 and peripheral circuit electronic devices and components 15, lighting device is fixed in the internal layer attemperator, the internal layer attemperator comprises the saturating window 5 of internal layer, internal layer shell 9 and internal layer cover plate 12, saturating window 5 of internal layer and internal layer cover plate 12 are fixedly set in internal layer shell 9 both sides, the saturating window 5 of internal layer is arranged near LED light emitting diode 11 1 sides, and internal layer cover plate 12 is arranged near peripheral circuit electronic devices and components 15 1 sides; Internal layer cover plate 12 is provided with the internal layer wire hole that peripheral circuit electronic devices and components 15 transmission lines are used.
According to the different operating condition, can outside the internal layer attemperator, set up outer attemperator; The internal layer attemperator is fixed in the outer attemperator, outer attemperator comprises outer saturating window 1, outer casing 4 and outer cover plate 13, outer saturating window 1 and outer cover plate 13 are fixedly set in outer casing 4 both sides, outer saturating window 1 is arranged near saturating window 5 one sides of internal layer, and outer cover plate 13 is arranged near internal layer cover plate 12 1 sides; Outer cover plate 13 is provided with the outer wire hole that peripheral circuit electronic devices and components 15 transmission lines are used.Outer cover plate 13 and internal layer cover plate 12 adopt matched in clearance, simultaneously in order to increase thermal-conduction resistance, the internal layer cover plate are processed into " bottleneck " structure, and structural member minimum wall thickness (MINI W.) place is 1mm.
Outer saturating window 1 and outer cover plate 13 are fixedly set in outer casing 4 both sides by being threaded, being threaded of outer casing 4 partly is provided with polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 10 with screw 3 in outer casing 4 inside and outside contact both sides; Saturating window 5 of internal layer and internal layer cover plate 12 are fixedly set in internal layer shell 9 both sides by being threaded, being threaded of internal layer shell 9 partly is provided with polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 10 with screw 3 in internal layer shell 9 inside and outside contact both sides.
The cavity 2 that forms between internal layer attemperator and the lighting device is filled polyurethane or is vacuumized.The cavity 8 that forms between internal layer attemperator and the outer attemperator is filled polyurethane.
Because lighting device works in the low temperature liquid oxygen pressure jar, the use of its structural material has many specific (special) requirements.Following three the aspect performances of main consideration: structural material and low temperature liquid oxygen dielectric compatibility, structural material resistance to low temperature and structural material heat conductivility.After three performance indications of comprehensive said structure material, in the heat-insulation and heat-preservation structural design, select for use under low temperature environment the reasonable austenitic stainless steel of performance as the material of main part of structure, it has the performance indications that specific heat capacity is big, thermal conductivity is little, selects for use the nonmetallic materials polytetrafluoroethylene (PTFE) as heat-barrier material; Internal core regional structure material adopts aluminium alloy, and it is little that it has specific heat capacity, and the characteristics of good heat conductivity, the heat that can rapidly electric heating film be produced pass on the illuminator core component of inner LED light emitting diode and peripheral circuit electronic devices and components composition.
Lighting device is fixed in the internal layer attemperator by being threaded, lighting device is provided with screwed hole near internal layer shell 9 one sides, screw 3 is fixed in lighting device in the internal layer attemperator by internal layer shell 9 and screwed hole, screw 3 is provided with the adiabatic mechanism 6 of wired contact near screwed hole one side, and screw 3 is established near internal layer shell 9 both sides and all is equipped with polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 10.In structural design, adopt insulation effect relatively preferably the nonmetallic materials polytetrafluoroethylene (PTFE) as the heat-insulating and sealing circle, and support structure designs become the line contact form, to increase the thermal contact resistance of 9 of illuminator and internal layer shells to greatest extent, reduce to greatest extent because the thermal loss that the heat conduction causes.
The lighting device leading indicator is as follows, illumination zone: 98 ° * 75.5 ° (2 ω=116 °); Illumination distances: 7m; Operating temperature :-196 ℃～+ 60 ℃; Environment maximum pressure: 0.6Mpa; Power consumption: 5W; Appearance and size: Φ 120 * 100mm.
The glass of saturating window of internal layer and outer saturating window adopts the most stable optical quartz glass of physicochemical property as the window glass material.Wherein, the cavity that forms between internal layer attemperator and the lighting device is filled polyurethane or is vacuumized, and it is preferable to vacuumize effect, the cavity filling polyurethane that forms between internal layer attemperator and the outer attemperator.
Seal, all seal between outer casing and the outer saturating window with the indium silk between internal layer shell 9 and the internal layer cover plate, between internal layer shell 9 and the saturating window of internal layer, between outer casing and the outer cover plate, overcome traditional rubber seal ageing failure problem at low temperatures with the indium silk.
Assembly relation and performing step that the illuminator product is relevant with adiabatic heat-insulation are as follows:
1) will be installed on internal layer shell 9 inside by the illuminator core component that LED light emitting diode 11 and peripheral circuit electronic devices and components 15 are formed, its connected mode is that screw passes through polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 10 and connects, and the effect of polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 10 is to increase the thermally conductive heat resistance and polyamine fat expanded material is sealed; 2) the internal layer heat-insulation layer is carried out the foaming of polyamine fat and handle, polyamine fat foam process is ripe open technology; 3) assembling internal layer shell 9 and internal layer cover plate 12 are installed the mating surface place and are adopted the indium silk to seal, and require the mating surface roughness to be better than 3.2; 4) will be installed on outer casing 4 inside by the internal layer insulation construction that internal layer shell 9 and 12 assemblings of internal layer cover plate form, outer casing 4 and internal layer shell 9 carry out Design on thermal insulation by polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 7, polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 7 plays the effect that polyamine fat blowing agent is sealed in heat insulation, so when assembling, must adopt dedicated accessory tool that internal layer shell 9 is compressed fully by polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 7 and outer casing 4, and make polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 7 tension backs produce certain decrement and guarantee good sealing effectiveness, the use of assembling special tooling as shown in Figure 1; 5) the outer attemperator of being made up of outer casing 4, polytetrafluoroethylene (PTFE) heat-insulating and sealing circle 7 and internal layer shell 9 being carried out the foaming of polyamine fat handles; 6) assembling outer casing 4 and outer cover plate 13 are installed the mating surface place and are adopted the indium silk to seal, and require the mating surface roughness to be better than 3.2; 7) the saturating window 5 of internal layer is installed, saturating window 5 of internal layer and internal layer shell 9 counterface places compress the saturating window 5 of internal layer with pressing plate then with the sealing of indium silk; 8) outer saturating window 1 is installed, outer saturating window 1 and outer casing 4 counterface places compress outer saturating window 1 with pressing plate then with the sealing of indium silk.
After tested, this illuminator result of use can illustrate that from the low temperature environment test data of its experience the low temperature environment experimental condition is:
Environment temperature :-175 ℃ ± 10 ℃
Rate of temperature fall: drop to-175 ± 10 ℃ of times from room temperature and be no more than 1.5 hours
Heating rate: be raised to the room temperature time from-175 ± 10 ℃ and be not less than 1 hour
It is-190～-170 ℃ low temperature liquid oxygen pressure jar inside that this illuminator works in temperature, and the internal environment that satisfies pressurized tank is the requirement of extreme low temperature, hyperbaric environment (maximum pressure 0.6MPa), and is working properly.
Claims (8)
1. illuminator that is applied in the liquid oxygen environment, comprise the lighting device of forming by LED light emitting diode and peripheral circuit electronic devices and components, it is characterized in that: described lighting device is fixed in the internal layer attemperator, the internal layer attemperator comprises the saturating window of internal layer, internal layer shell and internal layer cover plate, saturating window of internal layer and internal layer cover plate are fixedly set in the internal layer shell both sides, the saturating window of internal layer is arranged near LED light emitting diode one side, and the internal layer cover plate is arranged near peripheral circuit electronic devices and components one side; Described internal layer cover plate is provided with the internal layer wire hole that peripheral circuit electronic devices and components transmission line is used.
2. the illuminator that is applied in the liquid oxygen environment according to claim 1, it is characterized in that: described internal layer attemperator is fixed in the outer attemperator, outer attemperator comprises outer saturating window, outer casing and outer cover plate, outer saturating window and outer cover plate are fixedly set in the outer casing both sides, outer saturating window is arranged near saturating window one side of internal layer, and outer cover plate is arranged near internal layer cover plate one side; Described outer cover plate is provided with the outer wire hole that peripheral circuit electronic devices and components transmission line is used.
3. the illuminator that is applied in the liquid oxygen environment according to claim 1 and 2 is characterized in that: the cavity that forms between described internal layer attemperator and the lighting device is filled polyurethane or is vacuumized.
4. the illuminator that is applied in the liquid oxygen environment according to claim 3 is characterized in that: the cavity that forms between described internal layer attemperator and the outer attemperator is filled polyurethane.
5. the illuminator that is applied in the liquid oxygen environment according to claim 4 is characterized in that: seal with the indium silk between described internal layer shell and the internal layer cover plate, seal with the indium silk between the saturating window of internal layer shell and internal layer; Seal with the indium silk between described outer casing and the outer cover plate, seal with the indium silk between outer casing and the outer saturating window.
6. the illuminator that is applied in the liquid oxygen environment according to claim 5, it is characterized in that: saturating window of described skin and outer cover plate are fixedly set in the outer casing both sides by being threaded, and saturating window of described internal layer and internal layer cover plate are fixedly set in the internal layer shell both sides by being threaded; Described lighting device is fixed in the internal layer attemperator by being threaded.
7. the illuminator that is applied in the liquid oxygen environment according to claim 6 is characterized in that: being threaded of described outer casing partly is provided with polytetrafluoroethylene (PTFE) heat-insulating and sealing circle with screw contact both sides inside and outside outer casing; Being threaded of described internal layer shell partly is provided with polytetrafluoroethylene (PTFE) heat-insulating and sealing circle with screw contact both sides inside and outside internal layer shell; Described lighting device is provided with screwed hole near internal layer shell one side, screw is fixed in lighting device in the internal layer attemperator by internal layer shell and screwed hole, described screw is provided with the adiabatic mechanism of wired contact near screwed hole one side, and screw is established near the internal layer shell both sides and all is equipped with polytetrafluoroethylene (PTFE) heat-insulating and sealing circle.
8. the illuminator that is applied in the liquid oxygen environment according to claim 7 is characterized in that: described internal layer cover plate is a sealing plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010184852 CN101858516A (en) | 2010-05-27 | 2010-05-27 | Lighting system applied to liquid oxygen environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010184852 CN101858516A (en) | 2010-05-27 | 2010-05-27 | Lighting system applied to liquid oxygen environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101858516A true CN101858516A (en) | 2010-10-13 |
Family
ID=42944580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010184852 Pending CN101858516A (en) | 2010-05-27 | 2010-05-27 | Lighting system applied to liquid oxygen environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101858516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779266A (en) * | 2019-10-16 | 2020-02-11 | 徐州鹰格电子技术有限公司 | LED lamp for refrigeration house |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1926656A (en) * | 2004-03-02 | 2007-03-07 | 株式会社东芝 | Image forming device |
| CN101707669A (en) * | 2009-11-26 | 2010-05-12 | 天津市电视技术研究所 | Semiconductor refrigeration camera shield |
| CN201467276U (en) * | 2009-06-10 | 2010-05-12 | 南京比沃特视频系统有限公司 | Camera protective cover with heat insulating function |
| CN201680208U (en) * | 2010-05-27 | 2010-12-22 | 中国科学院西安光学精密机械研究所 | Lighting system used in liquid oxygen environment |
-
2010
- 2010-05-27 CN CN 201010184852 patent/CN101858516A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1926656A (en) * | 2004-03-02 | 2007-03-07 | 株式会社东芝 | Image forming device |
| CN201467276U (en) * | 2009-06-10 | 2010-05-12 | 南京比沃特视频系统有限公司 | Camera protective cover with heat insulating function |
| CN101707669A (en) * | 2009-11-26 | 2010-05-12 | 天津市电视技术研究所 | Semiconductor refrigeration camera shield |
| CN201680208U (en) * | 2010-05-27 | 2010-12-22 | 中国科学院西安光学精密机械研究所 | Lighting system used in liquid oxygen environment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779266A (en) * | 2019-10-16 | 2020-02-11 | 徐州鹰格电子技术有限公司 | LED lamp for refrigeration house |
| CN110779266B (en) * | 2019-10-16 | 2021-11-23 | 徐州鹰格电子技术有限公司 | LED lamp for refrigeration house |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201487481U (en) | Vacuum heat-insulating plate | |
| CN201680208U (en) | Lighting system used in liquid oxygen environment | |
| CN203719292U (en) | Ultralow temperature refrigerating machine with composite thermal insulation material | |
| CN107631105A (en) | Liquefy shale gas liquefied nitrogen, superconducting cable compound energy pipe design method | |
| CN201635207U (en) | Polyurethane vacuum insulating sandwich | |
| CN114136046B (en) | Vehicle-mounted high-efficiency heat-insulation Stirling cryogenic refrigerator | |
| CN201681244U (en) | Image pickup system applied to liquid oxygen environment | |
| CN101858516A (en) | Lighting system applied to liquid oxygen environment | |
| CN202098698U (en) | Heat insulation box | |
| CN101854476A (en) | Image pickup system applied to liquid oxygen environment | |
| CN2590953Y (en) | Vehicle transport Low-temperature storage tank | |
| CN207301901U (en) | A kind of insulation industry computer cabinet housing | |
| CN202259011U (en) | Mechanical thermal switch of refrigerator for cooling superconductive magnet directly | |
| CN103616125A (en) | Digital pressure meter used in extreme site environment | |
| CN103836508A (en) | Cold-proof neon light | |
| CN110374840B (en) | Double-cylinder vacuum pump | |
| CN201297818Y (en) | Electric refrigerator with low energy consumption | |
| CN102941502B (en) | Ultralow temperature processing method and ultralow temperature processing device for liquefied natural gas (LNG) equipment | |
| CN207016697U (en) | A kind of aeroge compound heat-insulation piece for electronic product | |
| CN200968759Y (en) | Fridge using thermal insulating material | |
| CN204099827U (en) | A kind of antifreeze bellow type liquid filled case | |
| CN219841239U (en) | Cold box heat preservation device of low-temperature liquid pump | |
| CN102082313B (en) | Battery cooling system | |
| CN113622851B (en) | Natural gas hydrate heat preservation pressurize corer | |
| CN104421607A (en) | Vacuum heat preservation steel cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101013 |