What are the life cycle cost analysis of mechanical seal system? -

What are the life cycle cost analysis of mechanical seal system?

　2020-05-07　　

Life cycle cost analysis of mechanical seal system:

For mechanical seal systems, its life cycle costs mainly include nine major costs, which are expressed as follows:

1. Operating costs, including effective use of cooling water, flushing and quenching fluids, buffering and blocking fluids, blocking gas and (or) waste gas (liquid) disposal of the sealing auxiliary system;

2. Equipment maintenance cost refers to the cost of equipment repair and replacement parts due to seal failure;

3. Seal maintenance cost refers to the cost of repairing mechanical seal, liquid seal ring and shaft sleeve, etc.;

4. Shutdown and sealing product loss costs, which are product loss costs caused by unexpected sealing failures affecting the operation of the entire device. This value is difficult to calculate in advance, and shutdown costs can be used as an empirical estimate;

5. Environmental protection costs, such costs refer to the costs of the selected seal in order to meet the requirements of the environmental protection law. If there are regulations, it also includes fines for violating environmental protection laws and regulations;

6. Energy consumption costs refer to the frictional power loss of the seal pair. It also includes the energy consumed to compensate for the dilution of the process fluid by the buffer fluid and/or to restore the process temperature;

7. The initial purchase cost, that is, the cost of purchasing the seal, including the cost of engineering, bidding, order management, testing, inspection of the origin and initial spare parts;

8. Installation costs, including site preparation with special requirements, installation and connection of related pipes, installation of electrical appliances and meters, auxiliary systems, and special services required for driving;

9. The cost of decommissioning and disposal is rarely considered in practice, but some mechanical seal components consumed during the life of the equipment, etc., if the processed products are extremely hazardous, the disposal cost will be It is higher and has to be considered.　　1129.html,

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