3d300fddbee13161f00ec3f73339ee8d.ppt
- Количество слайдов: 25
YOUR PARTNER IN CRYOGENICS Le-Tehnika d. o. o. Šuceva 27 SI - 4000 Kranj Slovenia, Europe Tel. : +386 4 20 20 200 Fax: +386 4 204 21 22 www. le-tehnika. com CRYOGENIC COOLERS
Le-tehnika – basic data - Established in 1989 - 3 main divisions: – Telephony since 1989 – Hydraulics&Pneumatics since 1995 – Cryogenics since 2000 - A doughter company Sinoslo Technology (SIP) Ltd. established in year 2003 in China CRYOGENIC COOLERS
WORLDWIDE LOCATIONS Le-tehnika d. o. o. Croatia Le-tehnika d. o. o. Kranj Slovenia Headquarters, production, distribution, 92 employee, 2 retail shops Distribution, 3 employees Syndeo, d. o. o. Bosnia Distribution, 1 employees Sinoslo Technology (SIP) Ltd. Suzhou, China Production, distribution, 90 employees CRYOGENIC COOLERS
ORGANISATION CRYOGENIC COOLERS
Organization – Main divisions Cryogenics Hidraulics & Pneumatics Telefony CRYOGENIC COOLERS
ISO in Le-tehnika – accomplished STANDARDS • Standards - ISO 9001: 2008 - ISO 14001: 2004 (environmental) CRYOGENIC COOLERS
CRYOGENIC COOLERS
CRYOGENIC PROGRAM Le-tehnika is specialized in development and production of cryogenic coolers systems of different configurations and performances and its accessories. They are generally intended for IR detector’s cooling used in IR cameras or missiles with an IR head for defense industry, police, security and in other applications. Specific advantages of Le-tehnika: - Flexible production (quick delivery of samples or small quantities) - R&D team (customized solutions for each customer) - Competitive prices - Quality CRYOGENIC COOLERS
CRYOGENIC DEPARTMENT’S EQUIPMENT • High purity air, N 2 and Argon installation with pressures up to 700 bar • Climatic Chambers for environmental testing • Measuring stands for JT coolers performance measurements • Clean room class ISO 7 • Filling stations for Stirling cycle devices • Sarix EDM machine for production of small parts • Multiple turning machines HYDRAULIC DEPARTMENT has its own workshop, which we are using for production of bigger parts. CRYOGENIC COOLERS
Some fractals from our productioon Assembly working stand for JT coolers Nozzle drilling and other preccision milling operations Cleaning and purging room CRYOGENIC COOLERS Clean room class ISO 7 Stirling Coolers assemby
JOULE THOMSON MINICOOLERS Capabilities: - Design and construction of coolers. - Heat exchangers calculation and manufacturing. - Different types of orifice designs, dimensioning and construction of orifice in accordance with required cooler consumption. - Technology of bellow type self regulating mechanism. - Technology of other types of self regulating mechanism (bimetal, etc. ). - Technology of Active Controlled type JT cooler. - Technology of Dual flow JT coolers - Production of JT coolers. - Testing and measuring of JT cooler performances for pressures up to 700 bar at different ambient temperatures - Typical outer diameters: 5. 18 mm, 7. 22 mm, 10. 3 mm, 11. 17 mm - Design proving, qualification testing etc. CRYOGENIC COOLERS
JOULE THOMSON MINICOOLERS BY SHAPE - Cylindrical - Conical - Combined (cylindrical, conical) CRYOGENIC COOLERS
JOULE THOMSON MINICOOLERS BY TYPE OF CONSTRUCTION * Fixed orifice * Fast cool down * Actively controlled (regulated) * Multilayer CRYOGENIC COOLERS * Self – regulated
CRYOGENIC COOLERS
JOULE THOMSON MINICOOLERS ACTIVELY CONTROLLED COOLER - ACC Advantages: - more reliable, - less influenced by gas impurities, - more stable operation, - operating temperature is not fixed with the gas used and could be set as needed. Used for cooling of IR head on IRIS-T rocket. CRYOGENIC COOLERS
JOULE THOMSON MINICOOLERS ACCESSORIES - High pressure gas containers (bottles) Quick release valves (TBD) High pressure gas cleansers Pure Air Monitors (PAM) Test dewars CRYOGENIC COOLERS
CRYOCOOLERS BASED ON STIRLING CYCLE Capabilities: - Design of Stirling coolers for different cooling power requirements. - Regenerators calculation and manufacturing. - Production of Stirling coolers. - Testing and measuring of Stirling cooler performances. Types of Stirling coolers: - Split Stirling cryocooler with rotary drive (0. 5 W at 80 K of cooling power) - Integral Stirling cryocooler with rotary drive (up to 3/4 W of cooling power) CRYOGENIC COOLERS
CRYOCOOLERS BASED ON STIRLING CYCLE SPLIT WITH ROTARY DRIVE - Cooling power around 500 m. W at 80 K Power consumption app. 35 W Temp. range: -40°C to +70°C Different forms and lengths of cold finger available on request CRYOGENIC COOLERS
CRYOCOOLERS BASED ON STIRLING CYCLE INTEGRAL WITH ROTARY DRIVE Input Voltage: …………………… Typ. Steady State Input Power …………. . Cooldown time to 80 K (200 J). . . . . Maximum Input Power Required. . . . Operating Ambient Temperature Range. . Weight. . . . MTBF. . . . CRYOGENIC COOLERS 21 -28 VDC (200 m. W @80 K @ 23°C): 8 W Typ. < 5 min 17 W (during cooldown ) - 40 C to + 71 C < 470 gr > 10000 h (Expected)
DEVELOPMENT OF INTEGRAL STIRLING COOLER with ROTARY DRIVE ROADMAP – generation 2 Target specifications: • Cooler Weight: <500 gr. • Input Voltage: 18 -24 VDC • Max. Cooling power: > 500 m. W @80 K • Steady State Input Power Time frame Jan. 2011 Design verifications with Environmental tests (200 m. W @80 K and 23°C): 8 W Typ. • Maximum Input Power: 17 W • Cooldown Time (200 J @23°C): < 5 min Typ. • Ambient Temperature Range: - Operational: -40°C. . . +71°C - Non-Operational: -56°C. . . +85°C • Meets Environmental Conditions per MIL-STD-810 D • MTTF > 5, 000 Hours CRYOGENIC COOLERS April 2011 Start of Life time testing Jun 2011 Industrialization
DEVELOPMENT OF SMALL INTEGRAL STIRLING COOLER with ROTARY DRIVE Target specifications • • • ROADMAP – generation 3 Cooler Weight: < 250 gr. Input Voltage: 12 VDC Steady State Input Power (150 m. W @110 K @23°C): 3 W Typ. Maximum Input Power: 15 W Cooldown Time (150 J @23°C): 5 Minutes Typ. Ambient Temperature Range: - Operational: -40°C. . . +71°C - Non-Operational: -56°C. . . +85°C • • Meets Environmental Conditions per MIL-STD-810 D MTTF > 10, 000 Hours CRYOGENIC COOLERS Time frame Mar. 2011 Design development start (shape, materials, el. motors, …) Aug. 2011 Models, preliminary tests Dec. 2011 Design verifications with Environmental tests Jun 2012 Industrialization
AVAILABLE TECHNOLOGIES & POTENTIAL TECHNOLOGIES ON SHORT TERM SCALE - Self regulated JT cryocoolers or actively controlled JT coolers Capacity: 80 -100 units per month. First samples available in few months. For special flange request some development time needed. - PAM (PS or PR versions) Capacity: 10 units/month at the moment Samples available in 8 weeks CRYOGENIC COOLERS
AVAILABLE TECHNOLOGIES & POTENTIAL TECHNOLOGIES ON LONG TERM SCALE - Self regulated JT cryocoolers with special regulating demands. The development is needed and first samples available app. 6 months after start of the project. Production in agreement with customer. - High pressure fast cooldown JT cryocoolers (special demands). - Quick release valves, depend on quantities. - Split Stirling cryocooler 0. 5 W Serial production available in 2011 - Integral 0. 5 W Stirling cryocooler Serial production available in 2011. - Linear stirling and Pulse tube closed cycle cooler. . Further development needed. CRYOGENIC COOLERS
More details about our company and products on www. le-tehnika. com CRYOGENIC COOLERS
Thank you for your attention! You are kindly invited to visit us in Slovenia! CRYOGENIC COOLERS