Rotating joint for solar energy
Rotating joint for solar energy
The rotary joint of solar photovoltaic power generation equipment belongs to the category of high-temperature rotary joints. It converts solar energy into radiant energy to heat the fluid medium, which is transmitted through a dedicated rotary joint to a heating tank or tank with a water tank, and converted into steam energy to drive a steam turbine for power generation; According to the fluid medium, it can be divided into thermal oil rotary joints, thermal silicone oil rotary joints, and high-temperature molten salt rotary joints. The flange and welding connection methods can be selected according to the equipment operating conditions; The entrance of the transmission medium can be freely selected to enter through the side or rear according to the working conditions.
Product Features
1. Use high-temperature resistant sealing rings
2. Multi spring balance compensation mechanism
3. Low rotational torque
4. Able to withstand both axial and radial loads simultaneously
5. Choose imported high-temperature resistant bearings
6. Imported sealing material, maintenance free, long service life
| Item | Parameter | Remarks |
|---|---|---|
| Product Name | Solar Trough CSP Rotary Joint | Special for solar thermal power collector equipment, medium: thermal oil / molten salt |
| Nominal Diameter | DN25 / DN32 / DN40 / DN50 / DN65 | Customizable |
| Working Medium | Thermal oil, molten salt, high temperature heat transfer fluid | For trough concentrated solar power |
| Max Working Temperature | Thermal oil: 350℃; Molten salt: 600℃ | Depends on seal selection |
| Rated Working Pressure | 1.6~2.0 MPa | Static pressure resistance: 2.5 MPa |
| Permissible Rotation Speed | 0~5 rpm | Low speed for solar tracker, typical 2 rpm |
| Structure Type | Single channel L-type (3 fixing bolts design same as photo) | Black painted housing, stainless steel rotating shaft |
| Housing Material | 45# steel blackened / alloy steel | High temperature & corrosion resistant |
| Shaft Material | 304 / 316L stainless steel | Wear resistant & anti high-temperature oxidation |
| Seal Material | High temperature graphite + silicon carbide | Suitable for high temperature working condition |
| Rotating Torque | 80~170 N·m | Increases with nominal diameter |
| Connection Type | Flange / External thread | Customizable per customer drawing |
| Application Environment | Outdoor, sand & UV resistant | Applicable for desert power station |
| Service Life | ≥30000 h | Regular maintenance for seal replacement |
| Leakage Grade | Slight seepage (allowed tiny film leakage, no dripping) | General standard for high temp rotary joints |
