Enyang Solar Energy Water Heating Project - Heat Pipe Vacuum Tube
The core component of heat pipe vacuum solar collector is SangPu space heat pipe vacuum tube produced in collaboration by Shanghai Enyang Solar Technology Co., Ltd. and Beijing Solar Energy Research Institute. Space heat pipe vacuum solar collector, a phase-change solar energy heating device with high efficiency, is a revolutionary breakthrough in mankind's developing and utilizing the solar energy. It is different from conventional water solarizing product and is a brand-new heating device which directly converts solar energy into heat energy.
The solar collector is composed of aluminum heat absorbing fin and copper heat pipe. The combination of copper and aluminum increased the efficiency of heat transmission from the heat absorbing fin to the heat pipe. The vacuum condition the solar collector is in is produced by vacuumiz ing a glass tube which is 2m long and 100mm in diameter with metal-glass hot compression technology, which is one of patented technologies of our company. The technology has also won many awards like the “National Award for Technological Invention” and “National Award for Science & Technology Progress”. Heat-compressed seal resolved the difficulties in connecting glass and metal due to the different thermal expansion coefficient and ensures long lasting stability of the vacuity in the tube. The glass tube is 2.5mm thick and the vacuity is 10 -5 mbar. So far, there are only 3 companies (in USA , Germany and China ) is able to make the mass production of such solar collector or other collectors with equivalent performance. As the only manufacturer in China , our products have passed the examination & inspection made by institution of China and abroad, also acquired global authoritative certificates and approvals. Our products are highly praised by both domestic and overseas customers.
The overall dimension of the heat pipe vacuum tube is ф100× 2000mm , which is mainly consisted of heat pipe, heat absorbing board, glass tube, metal end cap, and degassing agent, etc.
Features of solar collector
The advantages of space heat pipe vacuum tube mainly come from the distinct way of heat transmission in the heat pipe. The solar collector can be used throughout the whole year and has many other merits like high thermal performance, high heat efficiency, high working temperature, sustaining strong pressure, high heat absorbing rate, small heating capacity, quick start up, no fouling, winter-proofing, anti-freezing, anti-hail, convenient installation & repair, safe & reliable, as well as long service life, etc.
Application of the solar collector
Due to the high heat efficiency and working temperature, the solar energy solar collector consisted of space heat pipe vacuum tube can be used in many areas like domestic hot water, public hot water, solar energy heating, refrigeration and air conditioning, heat pump system, sea water desalination, medical sterilization, etc.
|
Solar Energy Water Heating Project – Parameters of Space Heat Pipe Vacuum Solar Collector
Model |
SEIDO1-8 |
Type |
Heat Pipe Vacuum Tube Plane Heat Collector SEIDO 1 |
Number of pipes |
8 |
Pipe dimension |
Φ 100 x 2000mm |
length x width x thickness (mm) |
2126x960 x175 |
Weight |
50 kg |
Water capacity |
0.48 l |
Installation tilt |
15 ° to 90 ° |
Optional absorbing coating |
AL-N-O optional absorbing coating with absorption rate α> 0.92 and emitting rate ε< 0.08; the cutting-edge magnetron sputtering technology is applied. |
Max. working temp. |
190 °C |
Max. solarization temp. |
250 ° C |
Min. working temp. |
-45 ° C |
Anti-hail capability |
Ф35 （ dropped freely from 15m high ） |
Working principle |
Copper water gravity heat pipe |
Rated working pressure |
6 bar |
Tested pressure |
10 bar |
Accessories for installation |
Stainless steel bracket and base, aluminum header, 30 mm polyurethane heat preserver |
Connection dimension |
25mm |
International approvals |
KeyMark, EN 12975, TüV, DIN 4757, SRCC, SPF |
Comparison of characteristics of solar collector made of all-glass vacuum tube and space heat pipe vacuum tube:
All-Glass Vacuum Solar Collector
|
Space Heat Pipe Vacuum Solar Collector |
• The influence of working temperature to the thermal performance of the collector is relatively small, but the tube has poor stability and will explode more easily. The collector easily suffers from frost cracks in the winter.
• The collector is slow at hot start up.
• The system can not function under pressure 。
• The piping system is relatively complex and can not be controlled flexibly. It is also hard to achieve the best circulation.
• The system has poor stability and is inconvenient to install and repair. The entire system will break down if one pipe is damaged.
• It is complicated and inconvenient to control the collector.
• The collector carries on cyclic heat absorbing naturally and easily gets fouling.
• The collector is hard-to-install in the buildings. |
• The collector has excellent heat performance, high working temperature and massive water output as well as anti-freezing.
• Thanks to the double vacuum structure, the collector has less thermal loss and quicker star up.
• The system can function well under pressure and has high heat conversion efficiency.
• The collector can be controlled flexibly and easily and is very convenient to install and repair as the control devices all are concentrated inside. The piping system is simpler than the all-glass vacuum piping system.
• The collector is safe and reliable and has long service life.
• The collector carries on cyclic heat absorbing forcibly and has good system stability.
• The collector hardly gets fouling as there is no water running in the pipe.
• The collector can be used safely and reliably for a longer time as the shell of the tube is thicker and more intensive.
• Good looking to the overall appearance of the collector and easy-to-install in the various buildings. |
|
