Yunnan Power Grid Co., Ltd. focused on procurement of the first batch of material framework tenders in 2017 [0002200000003164] - Change Document - Tender 6

All bidders:

According to the tenderer's study, the cancellation of the standard 23, the technical specifications of the on-line monitoring device for the temperature of the switchgear contact temperature 1. The requirements of the following clauses in the general rule:
"1.9

Vacuum Tube Solar Collectors

Vacuum tube collectors include CPC Solar Collector, U-shape solar collector without CPC, heat pipe vacuum tube solar collector, LPC open loop collectors. No matter pressurized or non-pressurized collectors, they are called vacuum tube solar collector once it consists of all glass Vacuum Tubes.

CPC solar collector is the highest efficiency among all vacuum tube solar collectors.


Advantages and benefits
- Short installation times due to complete pre-assembled collectors.
- Simple and reliable connection technology in order to extend several collectors side by side through pre-assembled screw connections. Further tubing and an extensive thermal insulation is not necessary.
- Integrated return pipe and highly efficient thermal insulation.
- Manageable module sizes for a very high performance and a quick and easy installation.
- Flow and return pipes may be fitted on the left or the right side of the manifold.
- High flexibility due to the different widths and lengths of the collectors.
- Quick and easy exchange of the evacuated tubes without using any tools.



Vacuum Tube Solar Collector,Vacuum Tubes Solar Water Collector ,Vacuum Tube Heat Solar Collector,Evacuated Vacuum Tube Solar Collector

Linuo Ritter International Co.,Ltd , https://www.lnrtsolarenergy.com