China

Secial-purpose rotary joint for solar energy heat-collector

Inventor Name
1. Min Miao
2. Bin Zhu
3. Wenxing Shi
Description
China

Secial-purpose rotary joint for solar energy heat-collector

Secial-purpose rotary joint for solar energy heat-collector

The rotary joint of solar collector has been in the state of outdoor high temperature and high pressure and continuous reciprocating operation for a long time. In addition to ensuring the sealing performance, it also needs to meet the requirements of better tension and displacement. At the same time, it also needs to avoid the axial deformation of the rotary joint caused by long-time high temperature illumination, which has become a major technical problem restricting the development of the industry, Such large-scale projects in China are mainly imported from Europe and America. In order to break through the technical difficulties, Miao min and others began to develop solar rotary joint in 2014, which is applied to solar thermal trough type collector and solar thermal butterfly type collector. The innovative design of the project adopts the elastic compensation form of internal and external wear, so that the sealing surface can always maintain a tight fit in the axial, radial and other directions, It effectively solves the problem of poor rotation concentricity when the rotary joint is welded and installed outdoors, so as to effectively ensure the reliability of the seal; Double spherical structure is adopted, which can automatically adjust the center and adapt to large angle swing displacement to prevent seal leakage caused by stretching and displacement during operation; The project can completely replace the traditional form of metal hose connection, avoid the leakage problem caused by the over stretching of metal hose due to work demand, ensure the reliability of dynamic and static changes of pipeline, and ensure the service life of rotary joint; In addition, in order to effectively ensure the quality of products, special testing equipment has been developed to simulate and test the actual working conditions of users higher than the requirements of industry standards, so as to ensure the ex factory quality and overall reliability of products. At present, the maximum temperature of rotary joint is 300 ℃, the maximum pressure is 1.6Mpa, and the swing adaptation angle is between + / - 12 degrees, which is leading in China.

Inquiry

List