The pump mechanical seal is a device in which a pair of vertical pump shaft ends are bonded together with the auxiliary seal under the elastic action of fluid pressure and tension (bellows) and slide relative to each other to avoid fluid leakage. A shaft sealing device for rotating machinery. Such as centrifugal pumps, centrifuges, reactors and compressors and other equipment. Since the transmission shaft runs through the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment, and the medium in the equipment leaks out through the gap. If the pressure inside the equipment is lower than the atmospheric pressure, the air leaks into the equipment, so there must be a Shaft seal to prevent leakage. The mechanical seal is a device that prevents fluid leakage by keeping at least one pair of end faces perpendicular to the rotation axis under the action of the fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal, which keeps fit and relatively slides. The elastic loading mechanism and auxiliary seal of the mechanical seal are the mechanical seal of the metal bellows, which we call the metal bellows seal. In light-duty seals, rubber bellows are also used as auxiliary seals. The rubber bellows have limited elasticity, and generally need to be supplemented by springs to meet the loading elasticity. "Mechanical Seals" are often referred to simply as "mechanical seals". Compared with the traditional packing seal, it has the advantages of good sealing performance, low conflict power consumption, and long mechanical seal cycle. Of course, after long-term use, the mechanical seal of the pump may also fail.

Mechanical Seals Manufacturer analyzes the general process of pump mechanical seal failure;

1. On-site appearance inspection

On-site inspection is the primary development process for judging the failure of the mechanical equipment sealing system of the water pump. After testing the imported Chinese mechanical design sealing temperature gun, check whether the temperature data of the sealing gland, flushing pipeline, and cooling pipe assembly mechanical sealing line are abnormal, and investigate and study the sealing leakage. Specific working position and leakage, and investigate whether there is displacement of the shaft sleeve.

2. Collect equipment and process data

Data collection is mainly divided into two aspects, one is to collect equipment data, such as equipment displacement, sensory data, bearing box temperature, etc. On the other hand, collect process operation data, verify process parameters, media composition and process operation records before failure.

3. Disassemble the machine pump to check the student machine for sealing

Disassembling machines and pumps is the most useful and direct way to determine the cause of seal damage.