Qingdao Allrise Import & Export Co,.Ltd is located in Qingdao Development Zone. which is an Prosperous area of Qingdao, There are so many foreigners.most of them do business in here. Allrise is founded in the year of 2008 and It is specialized in manufacture and sale the Evacuated Vacuum Tube . We had established long-term cooperation relationshioment with a effective manufacturer,which have most advance Qingdao Allrise Import & Export Co,Ltd is located in Qingdao Economic vacuum tube produce line and many professional technological staff.Their output more than 10000pcs everyday.
The Evacuated Vacuum Tube be composed by double glass tubes, the internal tube and outernal tube.The tube is full of vacuum by the Exhaust process, The All-glass coaxial double-layer tubes be design according to theory of membrane layer absorb sunlight and the vacuum can separate heat in the inner tube from outside. So the tube have special feature: LOW Emittance and HIGH Absorptance
Some evacuated tube systems are what is called a U-Tube, meaning that the glycol solution enters and exist each tube as opposed to flowing across a manifold. The SPP evacuated tube system uses what is called a heat pipe.
A heat pipe allows for rapid heat transfer. The heat pipe itself is a copper tube that maintains a vacuum and contains a small amount of liquid. The low pressure (vacuum) in the copper pipes means that the liquid boils at a low temperature (about 30oC / 86oF), turning to steam and rushing up to the heat of the heat pipe, carrying heat. It dumps the heat (to the glycol solution running through the header), condenses and runs back down to repeat the process
Evacuated tube collectors are of the highest qulity collcetors on the market.Two layer of extremely durable borosilicate glass maintain avacuum layer which acts as a magnificent insulator.owing to the superior insulation property, the evacuated tube collectors have the ability to generate heat through the winter in colder climate with with overcast condition
The Evacuated Vacuum Tube be composed by double glass tubes, the internal tube and outernal tube.The tube is full of vacuum by the Exhaust process, The All-glass coaxial double-layer tubes be design according to theory of membrane layer absorb sunlight and the vacuum can separate heat in the inner tube from outside. So the tube have special feature: LOW Emittance and HIGH Absorptance
Some evacuated tube systems are what is called a U-Tube, meaning that the glycol solution enters and exist each tube as opposed to flowing across a manifold. The SPP evacuated tube system uses what is called a heat pipe.
A heat pipe allows for rapid heat transfer. The heat pipe itself is a copper tube that maintains a vacuum and contains a small amount of liquid. The low pressure (vacuum) in the copper pipes means that the liquid boils at a low temperature (about 30oC / 86oF), turning to steam and rushing up to the heat of the heat pipe, carrying heat. It dumps the heat (to the glycol solution running through the header), condenses and runs back down to repeat the process
Evacuated tube collectors are of the highest qulity collcetors on the market.Two layer of extremely durable borosilicate glass maintain avacuum layer which acts as a magnificent insulator.owing to the superior insulation property, the evacuated tube collectors have the ability to generate heat through the winter in colder climate with with overcast condition