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DO YOU KNOW THE WORKING PRINCIPLE AND APPLICATION FIELD OF DOUBLE MECHANICAL SEALS

Views: 2481     Author: Site Editor     Publish Time: 2024-08-12      Origin: Site

DO YOU KNOW THE WORKING PRINCIPLE AND APPLICATION FIELD OF DOUBLE MECHANICAL SEALS




In the industrial field, mechanical seal is a key sealing technology, while double-end mechanical seal plays an important role in many application scenarios with its unique structure and performance.


The working principle of double-end mechanical seal is relatively complex but efficient. It is mainly composed of two pairs of sealed end faces, and a sealing cavity is formed between the two pairs of sealed end faces. The sealing chamber is usually filled with sealing fluids, which play a key role in lubricating, cooling and preventing media leakage.


During operation, the sealing liquid forms a certain pressure in the sealing cavity, so that the sealing end faces on both sides can be closely fit, effectively preventing the leakage of the sealed medium. At the same time, the circulating flow of the sealing liquid can take away the heat generated by friction, reduce the temperature of the seal end surface, reduce wear, and extend the service life of the mechanical seal.


A significant feature of the double-end mechanical seal is that it has a double sealing line of defense. When there is a slight leakage in the sealing end surface on one side, the sealing end surface on the other side can still work, thus improving the reliability and safety of the seal to a certain extent.


The application fields of double-end mechanical seals are very wide. In the petrochemical industry, it is often used to treat pump equipment with high temperature, high pressure, flammable, explosive and toxic media. For example, in key equipment such as hydrocracking pumps and ethylene cracking pumps in refining units, double-end mechanical seals can ensure the leak-free operation of the process medium and ensure the safety and stability of production.


In the pharmaceutical industry, for some high-purity and sterile liquid delivery pumps, the double-end mechanical seal can effectively prevent the contamination of the liquid and ensure the quality and safety of the medicine.


In the power industry, especially in the cooling water pumps and condensed water pumps of large generator sets, the double-end mechanical seal can adapt to complex working conditions and ensure the normal operation of the unit.


In the field of environmental protection, various sewage pumps in sewage treatment plants often use double-end mechanical seals to prevent sewage leakage from causing environmental pollution.


In addition, double-end mechanical seals are also widely used in food processing, papermaking, metallurgy and other industries.


In short, double-end mechanical seals play an indispensable role in modern industrial production with their unique working principle and excellent performance. With the continuous development and progress of industrial technology, the performance of double-end mechanical seals will continue to be optimized and improved, providing more reliable sealing solutions for the development of various industries and promoting industrial production in the direction of more efficient, safe and environmentally friendly.

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