DO YOU KNOW THE WORKING PRINCIPLE AND APPLICATION FIELD OF SINGLE-SIDED MECHANICAL SEALS?

In the modern industrial field, the importance of sealing technology is self-evident. Among them, a single-end mechanical seal plays a vital role as a common form of sealing. So, do you know the working principle and application field of single-end mechanical seals?

The working principle of single-end mechanical seal is based on a series of precision design and synergistic components. It is mainly composed of moving ring, static ring, elastic element, auxiliary sealing ring and transmission mechanism.

The moving ring is usually installed on the rotating shaft and rotates with the rotation of the shaft. The static ring is fixed on the sealing cavity and remains static. During the sealing work, the sealing end surfaces of the moving ring and the static ring are tightly fit together, forming a very small sealing gap. The size of this gap is usually between a few microns and dozens of microns, and its accuracy is extremely high.

The function of the elastic element is to provide an initial closing force, so that the end face of the dynamic ring and the static ring can be in close contact. When the equipment is running, the fluid pressure will also act on the sealing end surface, further enhancing the sealing effect.

The auxiliary sealing ring is used to prevent fluid from leaking to elastic components and transmission mechanisms to ensure the integrity of the sealing system.

The transmission mechanism is used to transmit the rotation of the shaft to the moving ring to ensure that the moving ring can rotate synchronously with the shaft.

The core of the working principle of single-end mechanical seal is to achieve effective sealing of fluid and prevent it from leaking to the external environment or other unexpected areas through the close fit between the moving ring and the static ring and the role of fluid pressure.

Single-end mechanical seals have a wide range of applications.

In the petrochemical industry, various pump equipment such as centrifugal pumps and reciprocating pumps often use single-end mechanical seals. For example, in crude oil conveying pumps, single-end mechanical seals can effectively prevent crude oil leakage and ensure the safety and efficiency of the conveying process. Because crude oil is flammable and explosive, once it leaks, it may cause serious safety accidents and environmental pollution.

In the pharmaceutical industry, the production process involves the transportation and treatment of a large number of pharmaceutical liquids and solvents. Single-end mechanical seals are widely used in the sealing of pharmaceutical equipment such as reactor stirring shafts. It can ensure that the liquid is not leaked and contaminated in the production process, and ensure the quality of the medicine and the safety of production.

In the power industry, many equipment such as pumps and fans also use single-end mechanical seals. For example, the water supply pump in a thermal power plant has a working environment of high temperature and high pressure, and the single-end mechanical seal can adapt to such harsh conditions to ensure the stable operation of the water pump and prevent water leakage.

In the food processing industry, single-end mechanical sealing plays an important role in various food delivery pumps, mixers and other equipment. It can prevent the leakage of food raw materials or finished products and ensure the hygiene and quality of food.

In the field of sewage treatment, single-end mechanical seals are often used in sewage pumps and other equipment. Because sewage may contain various impurities and corrosive components, single-end mechanical seals need to have good corrosion resistance and wear resistance to ensure long-term stable operation.

In short, the single-end mechanical seal has been widely used in many industrial fields with its unique working principle and reliable sealing performance. With the continuous development and progress of industrial technology, single-end mechanical seals are also being continuously optimized and improved to meet more complex and demanding working conditions and requirements.