Fixed tube heat exchanger consists of tube bundle, tube plate, shell, head, folded plate, etc. Tube bundle ends fixed in the tube plate, the tube can be expanded (the inner hole of the tube with mechanical expansion, so that the tube wall from the inward to outward extrusion and fixed in the tube plate) or welded to the tube plate. The tube bundle is placed within the tube shell, with headers and flanges fixed at both ends. In this way, one fluid flows from the inside of the tube and the other from the outside. The space between the two heads and the tube plate is used to distribute or collect the fluids inside the tube. The two fluids do not mix with each other, but only exchange heat through the tube wall.
Advantages: simple and compact structure, high pressure resistance, low cost and easy to clean the tube side.
Disadvantages: Risk of blockage when the tube is damaged or needs to be replaced.
When the difference between the wall temperature of the tube bundle and the shell or the coefficient of linear expansion of the material is large, a large thermal stress will be generated in the shell and the tube bundle. A flexible compensation ring (also called expansion joint) should be installed on the shell to reduce the thermal stress.
Fixed Tube Heat Exchanger,Tubular Exchanger,Tema Heat Exchanger,Fixed Tube Sheet Heat Exchanger Guangdong Jiema Energy Saving Technology Co.,Ltd , https://www.jiemaheatexchanger.com
As LED lighting began to enter our lives, new LED bulbs began to mature, and this is a rechargeable LED bulb. Due to its many advantages such as energy saving, environmental protection, strong applicability and good emergency performance, rechargeable LED lights will become a new choice for lighting.
[img]/uploads/allimg/130117/0U60V003-0.jpg[/img] Rechargeable LED lights are highly adaptable (picture from Ruili Home)
Rechargeable LED bulbs, as the name suggests, in addition to the LED bulbs are energy efficient, durable, low carbon and environmentally friendly, can also be charged, when the power failure, the bulb can continue to light. With the increasing awareness of energy conservation and environmental protection and the continuous improvement of the products themselves, this rechargeable LED bulb has been relatively mature in overseas markets and has been welcomed by more and more families, especially students.
Because it can be installed on any indoor lighting fixtures such as desk lamps, chandeliers, etc., and its rechargeable and easy to carry features, rechargeable LED bulbs are popular in Europe, America, Australia and other countries, becoming a choice for indoor lighting tools and tourism and field in foreign countries. The preferred product for outdoor lighting such as camping.