Vacuum Receiver
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Vacuum receiver is one of the key parts of solar energy system, it is made of three main parts: glass shell, stainless steel evacuated tube solar collector, soft sealing device, the stainless steel solar collector is available in selective absorption of coatings and between the evacuated tube solar collector and the glass shell is the vacuum.
Features- Using advanced glass, metal thermal compression and our patented sealing system, resolving mismatched coefficient of thermal expansion between glass and metal SS304.
- Selective absorbing coating is resistant to 300-400℃ high temperature under vacuum conditions, ensuring durable, stable absorptivity and reflectivity.
- All parts of the vacuum receiver have vacuum cleaning under high temperature and vacuum conditions, and with durable getter for high vacuum degree.
- The connecting end is concavo-convex designed, featuring high precision, easy welding and mounting, ensuring great flatness of the system.
| Model | VZK102-42/2860 | ||
| Length | mm | 2860 | |
| Glass tube | Diameter (thickness) | mm | φ102(2.8)mm |
| Transmittance | T≥92% | ||
| Stainless steel tube | Diameter (thickness) | mm | φ42(2)mm |
| Weight | Kg | 12.3 | |
| Operating | MPa | ≤3 | |
| pressure | |||
| Selective coating | Absorptance | α≥94% | |
| Emissive | ε≤10% (at approx.200℃) | ||
| vacuum degree | Gas pressure ≤(1～3)×10-2Pa | ||
| Max operation temperature | ℃ | 280 | |
| Ambient temperature | ℃ | - 40 ~ 60 | |
| Impact resistance | Solid steel ball of φ30mm falls freely from a height of 0.5m on it and there is no damage. | ||
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