Problems and Brief Description of Reliability Operation of Circular Arc Gear Pump in Petrochemical Industry

[1] 1. Problems in the Investment Management of Gear Pump Equipment in Petrochemical Industry Currently, there are two major limiting factors in the use of pump equipment in China's petrochemical industry

One is the price of pump equipment, and the other is the supply and demand relationship. At present, there are problems in the use of petroleum gear pumping equipment in China, such as poor procurement quality and insufficient maintenance costs, which have led to a disconnect between petroleum gear pump production and pumping equipment, affecting the production of petroleum gear pumps

2. Problems in the management of gear pump equipment

In the selection and maintenance cost estimation process of gear pump equipment, empirical estimation method is often used, lacking a complete and accurate equipment budget method.

. In addition, the depreciation method is often used in the operation and management of pump equipment. This not only leads to some pump equipment being able to maintain operation despite being fully depreciated. Although some aging pumping equipment has not been depreciated, its internal performance cannot meet the needs of production and construction, which not only reduces the efficiency of pumping equipment, but also causes many potential problems. This is a common issue in the depreciation calculation of pump equipment and a common loophole in pump equipment management

3. Narrow coverage of gear pump equipment management

The management of petroleum gear pumps is not only the management of pump equipment, but also a further understanding of the manufacturing principles and maintenance techniques of pump equipment. With the implementation of pump equipment management, the performance of petroleum gear pump equipment can be improved.

In the current management of petrochemical machinery, pumps, and pumps in China, we must adhere to the principles of chemical and technical management, and promote the development of management work while promoting vertical development. At present, the quality management and personnel allocation of petroleum gear pumps in China are lagging behind, resulting in inconsistency between pump equipment and production processes

[2] Overview of Mechanical Seals for Circular Arc Pumps

With the progress of society, environmental protection requirements are becoming increasingly high, and enterprises pay more attention to environmental protection in their production processes.

. In chemical enterprises, there are many media in contact, especially corrosive media, which can cause leakage problems. Therefore, in the selection process of circular arc pumps, it is required to ensure no leakage in daily production processes. Therefore, most of the sealing methods for circular arc pumps currently use mechanical sealing. Compared to packing seals, mechanical seal structures have better sealing performance, lower power consumption, and longer online use time. Due to the presence of buffer springs, they have better buffering performance and wider application areas. Compared with packing seals, it has a complex structure, strict processing accuracy and installation requirements, and high requirements for the quality and technical level of installation personnel. Therefore, identifying the causes of mechanical seal leakage and solving them has practical significance, which can enhance the service life of the mechanical seal onlineMechanical seal, also known as end face seal, is a sealing device that is composed of one or more pairs of dynamic and static ring contact surfaces perpendicular to the pump shaft. Under the combined action of medium pressure and compensating spring force inside the pump, it maintains contact and relative rotation to prevent liquid leakage from the contact surface. Mainly used for sealing the rotating shaft of pumps, compressors, hydraulic transmissions, and other similar equipment. Its main function is to change the axial seal that is prone to leakage into a mechanical seal on the end face that is more difficult to leak. During the working process, a liquid film is formed between the dynamic and static rings, which not only serves as a sealing medium but also provides lubrication and reduces the wear of the friction pair