Long-period low-speed rotation of the turbine

It’s definitely not possible; the turbine manual specifies a minimum speed for long-term operation, and operating at a lower speed for an extended period poses a risk of damaging the equipment. For specific details, you need to contact your turbine manufacturer

Long-term operation at low load can lead to severe water accumulation in the last stage impeller of the turbine, which in turn may cause blade failure due to cavitation; for any issues, please contact us via WeChat at 18866756681

Operating at low speeds involves two influencing factors: mechanical and thermal. 1 Mechanical effects: If the critical speed is avoided or a bearing oil film is established, the negative impacts from a mechanical perspective are relatively small. 2 Thermal effects: 2.1 Decline in the quality of the inlet steam: Steam pipelines lose heat; to achieve the steam quality required by the turbine, it is necessary to maintain a minimum flow rate of high-quality steam. Low-speed operation usually corresponds to low flow rates, which leads to a decline in the quality of the inlet steam and even the presence of water in it. 2.2 Even if the inlet steam does not contain water, the superheat of the steam after passing through the turbine decreases, causing it to reach a saturated state or even contain water. To operate at low speeds, it is necessary to assess the extent of these two factors’ impact, and it is advisable to avoid operating conditions that result in such negative effects