In cold weather, if the heat transfer capacity of the graphite heat exchanger is found to be reduced when heavy snow falls, the equipment should be shut down for maintenance. If the equipment is severely fouled, it can be cleaned by appropriate chemical methods; if the pipe is blocked by crystals, it can be heated and melted for cleaning, and mechanical treatment is strictly prohibited. The operation should be stopped immediately to exhaust the residual cold air and heat carrier inside. When the graphite heat exchanger is closed, all materials should be discharged. After closing, the longitudinal holes should be cleaned with an immersion solution (or hot water) that can dissolve crystals (or precipitates) and will not damage the graphite element. It is strictly forbidden to increase or decrease the temperature suddenly to avoid damage to the equipment.

For heat exchangers, planned maintenance is very important to avoid downtime. When the shutdown is planned for maintenance, the calcium chloride solution in the system should be discharged from the system for recovery, then hot water is added to the system, and the graphite heat exchanger is flushed with a circulating pump. This operation should be performed at least twice until the graphite heat exchanger releases clean water.

When the pressure of the conveyed medium exceeds the working pressure of the graphite heat exchanger equipment, a pressure reducing device should be installed at the connecting pipe of the medium inlet. Maintenance before production and operation: The temperature difference between startup and shutdown in rainy and snowy weather will cause thermal expansion and cold contraction. Therefore, the pressure spring of the graphite heat exchanger should be pressurized before production and operation. The size of each pressure spring on the top of the heat exchanger can reach 140mm to avoid leakage of the inner and outer seals of the heat exchanger and ensure the continuous start-up operation time. Xin Boao has focused on graphite equipment technology for 21 years, creating a brand of graphite heat exchangers, free one-to-one customized design solutions, graphite heat exchanger manufacturer Xin Boao is worthy of attention and trust, graphite equipment and various acid mist treatment, exhaust gas treatment And a professional manufacturer of environmental protection equipment and anti-corrosion equipment such as waste acid regeneration. Main products: Graphite heat exchanger is also called graphite heat exchanger, graphite cooler, graphite condenser, graphite evaporator, graphite absorption tower, graphite reboiler, graphite falling film absorber, graphite sulfuric acid diluter, waste acid Recycling, three waste treatment and environmental protection projects.