Evacuated heat pipe technology
1. Evacuated tubes based on the thermos flask principle and consisting of two concentric glass tubes and an evacuated gap to prevent heat loss.
2. Highly selective absorber layer on the inner glass tubes (AI/ALN,) which enables an optimum energy yield.
3. Aluminium heat transfer plate to provide an optimum heat transfer medium system.
4. Copper heat pipes transfer the extracting heat effectively.
5. Rock wool insulation with an aluminium lamination in order to prevent heat loss in the manifold.
6. Compression ring fitting (Ø 22 mm) for flow and return which enable a safe and easy-to-install pipework connections.
7. The most common working fluid is waterfor ambient temperatures of - 30 °C to an operating temperature to 90 °C.
Heat pipes made in China
The evacuated heat pipe technology uses the maximum fraction of solar irradiation at minimum ambient temperatures of -30 °C and maximum operating temperatures to 90 °C.
Key benefits:
- High collector efficiency of medium temperature suitable for pressurized and non-pressurized solar thermal applications.
- Due to the rapid heat conductivity evacuated heat pipe collectors are suitable for solar thermal applications in cooler areas with low ambient temperatues.*
- Well-known indestructibility of the evacuated heat pipe collectors according to DIN EN 12975-2.
Recommended application areas:
Hot water generation and heating support.
*in dependence on the respective heat transfer medium.
Scope of delivery
Fully pre-assembled unit comprising
- 12 - 30 evacuated heat pipes,
- manifold with direct flow heat conduction unit and dry tube connection.
Collectors are packed in individual boxes. In addition, there is a sun protection sheet over the evacuated heat pipe collector.
Installation types
Pitched roof, flat roof, on-wall.
Advantages and benefits
- Short installation times due to complete pre-assembled collectors.
- Manageable module sizes for a very high performance and a quick and easy installation.
- Highly efficient thermal insulation.
- Flow and return pipes may be filled on the left or the right side of the manifold.
- High flexibility due to the different widths and lengths of the collectors.
- Pressurized and non-pressurized operation.
- Season independent operation depending on the heat transfer medium.
Performance characteristics
- Rapid thermal conductivity.
- High energy yield and low heat loss due to the high vacuum of the evacuated tubes.
- Operating at minimum ambient temperatures of -30 °C to maximum operating temperatures of 90 °C.
- Two loop system to constantly maintain a good water quality and to ensure water on cold days due to the anti-freezing medium in the solar circulation loop and an easy integration of other energy supplies.
Specification
| R58-1830 | |||||
| Number of evacuated tubes | 30 | ||||
| η in relation to aperture, EN 1297 | 72.1 | ||||
| a1 with wind, in relation to aperture | W/(m2k) | 2.252 | |||
| a2 with wind, in relation to aperture | W/(m2k2) | 0.0018 | |||
| Grid dimensions (length x height x depth) | m | 1.97 x 2.30 x 0.16 | |||
| Gross area | m2 | 4.53 | |||
| Aperture area | m2 | 3.04 | |||
| Collector contents | l | 1.875 | |||
| Weight | kg | 99 | |||
| Max. operating pressure | bar | 8 | |||
| Max. stagnation temperature | °C | 245 | |||
| Connection diameter, compression fitting | mm | 22 | |||
| Glass tube material | borosilicate glass 3.3 | ||||
| Selective absorber coating material | AL-N/Cu | ||||
| Glass tube (Ø ext./Ø int./wall thickn./tube lgth.) | mm | 58/47/1.6/1800 | |||
| Colour (aluminium frame profile, anodised) | aluminium grey | ||||
Company information
Linuo Ritter International Co., Ltd focus on the solar collector, solar water heater, air source heat pump. We have ISO:9001, ISO:14001, CE, Solar keymark certificates to support our products.
We are one of the biggest manufacture of solar water heater in China, we have sold 5 million sets of SWH and 2 million sets of solar collector every year. We can provide good quality product to the customer, best price, lead-time, after-sales. We have professional engineer to update the products to make it more competitive.
At present, we have sold our products to many countries, such as German, USA, Canada, UK, South Africa, etc.
We do OEM for the customers, providing products, better price, good aftersales etc.
You can see the production line for air source heat pump as bellow:
We have certificate to support our products
Thermal project application samples:
1.Household solar water system
2.Engineering solar water system
3.Solar cooling system
4.Central solar water system
Product producing procedure
FAQ
Question1: Why customer choose Linuo Ritter?
Answer: Linuo Ritter International Co., Ltd focus on the solar collector, solar water heater, air source heat pump. It has four types of products to meet the different demand from the customer. Linuo Ritter also has big business scale in domestic market and overseas market.
Question2: What's your delivery time?
Answer: For repeat order, maybe 20days. for the first order, one month.
Question3: What's your payment term?
Answer: For the first time cooperation, 30% deposit, balance 70% against B/L copy. If the customer will set a long-term cooperation, maybe the payment term can be OA after placing many time orders.
Question4: What's your aftersales?
Answer: In general, we offer free charge of spare parts to the customer, if the customer have some technical problem, then we can provide technical supporting.