Home Products News Contact Us
Home > Supports > Diesel Engine > The Primary Technology for Hydrogen Leakage in Diesel Generator Sets

The Primary Technology for Hydrogen Leakage in Diesel Generator Sets

Sep. 26, 2023

Do you know the primary technology for hydrogen leakage in diesel generator sets? Firstly, choose a high sensitivity balance valve, and the structural layout should be changed from horizontal to vertical, which has a better effect. Install vacuum dehumidification equipment at the inlet of the sealing oil system to improve the dehumidification effect of the hydrogen dryer. The way to improve the effectiveness of hydrogen dryers is to increase the hydrogen flow rate and reduce the outlet humidity of the dryers. The operation of the dryer is not continuous, and the diesel generator set is shut down while the generator is in a hydrogen pressure state. The dryer should still be operated. The intention of doing so is that all internal components are in a low-temperature condition, the sealing oil system is still running, the water inlet is still accumulating, and the hydrogen circulation inside the machine is interrupted.

diesel generator container

These may all be located in the interior space near the sealed tile, and the hydrogen humidity may quickly rise, making it easier to reach the dew point. The primary method for dealing with the dryness of hydrogen gas in a 300MW generator is to use a condensing hydrogen dryer, which affects the temperature of the condensing space in the refrigeration equipment. The lower the temperature, the better the effect. This element is related to the power, space volume, wet hydrogen flow rate, and temperature of the refrigeration equipment. There are certain drawbacks to using this type of dryer, as the outlet temperature of the dryer can only reach -10 ℃~-20 ℃, which limits its dryness. The heat exchange surface will continue to frost, causing its thermal resistance to increase and its dry function to decrease.

Defrosting and heating will result in continuous operation of the dryer, resulting in an increase in hydrogen humidity inside the machine. Nowadays, a generator is generally equipped with two hydrogen dryers. It is necessary to check if the operation method is correct to ensure that the two dryers are replaced for operation. The external circulation system has not been modified and is still driven by the differential pressure of the fan at the generator end. After the shutdown of the diesel generator set, the problem of dry handling of internal loss still exists. Therefore, after the generator is shut down, it should be replaced with air as soon as possible to avoid hydrogen condensation inside the generator. The hydrogen recovery temperature is low, and the internal cold hydrogen temperature can reach up to 40 ℃. Before the two are mixed, it is completely possible to cause damage to the stator end winding or rotor protective ring for a long time, posing a threat to its safe operation.

Jiangsu Dingbo Power Generation Equipment Co., Ltd. is an early professional manufacturer of generators and diesel generator sets in China. The company has first-class national-level large-scale production and load testing equipment. Provide users with long-term diesel generator set sales, leasing, technical consultation, commissioning, maintenance, training services and generator set trusteeship business. If you would like to get more information welcome to contact us via sales@dieselgeneratortech.com.

Contact Us
  • Add.: No. 10 Kechuang Road, High tech Zone, Nanning, Guangxi, China
  • Tel.: +86 771 5805 269
  • Fax: +86 771 5805 259
  • Cellphone: +86 134 8102 4441
                    +86 138 7819 8542
  • E-mail: sales@dieselgeneratortech.com
Follow Us

Copyright © Guangxi Dingbo Generator Set Manufacturing Co., Ltd. All Rights Reserved | Sitemap

Update cookies preferences
Contact Us