Stainless steel gear pump produces the main cause of mechanical seal failure
The main reasons for the failure of mechanical seals produced by stainless steel gear pumps are:
1 The liquid medium has poor lubricity, and the operating pressure is overloaded, and the tracking surfaces of the two sealing surfaces are not synchronized. For example, the high speed pump speed is 20445r/min, the sealing surface center diameter is 7cm, and the line speed is up to 75m/s after the pump is running. When there is a sealing surface lag, the rotation cannot be tracked, and the sealing surface is damaged by the instantaneous high temperature. Frequent occurrence of hydraulic characteristics of the liquid medium causes the pump unit to vibrate, causing the sealing surface to be misaligned and fail. The liquid medium corrodes the sealing element, stress concentration, soft and hard material coordination, erosion, auxiliary sealing 0-ring, V-ring, concave ring is incompatible with liquid medium, deformation, etc. will cause mechanical seal surface damage failure, so The damage form should be comprehensively analyzed to find out the root cause and ensure that the mechanical seal runs for a long time.
2 The liquid medium vaporizes and expands, so that the two end faces are separated by the vaporization expansion force. When the two sealing faces are pressed together, the lubricating film is broken and the surface of the end face is overheated.
The pump transmission parts have poor coaxiality. After the pump is turned on, the end face is shaken once every revolution, and the running track of the moving ring is not concentric, causing the end face to vaporize and overheat and wear.
3 When the sealing surface is too large, the flushing fluid can't take away the heat generated by the friction pair; the flushing liquid leaks away from the gap of the sealing surface, causing the end surface to overheat and damage.
4 The seal flushing liquid orifice plate or filter is clogged, resulting in insufficient water and invalidation of the machine seal.
Concerned about surprises
Label: Main cause of mechanical seal failure caused by stainless steel gear pump
Previous: Standard sieve test sieve analysis sieve inspection sieve classification, screen mesh Next: How to use powdered activated carbon to more effectively and economically decontamination
The zippered Tool Backpack presents an easy-to-carry and handy solution for storing tools and equipment. It often includes a zippered principal section, alongside various pockets and compartments for methodical storage and arrangement of equipment. Moreover, it features cushioned straps for a relaxed carrying experience.
Key characteristics of zippered tool backpacks include:
- Strength: Opt for a backpack manufactured from sturdy materials such as nylon or polyester.
- Volume: Take into account the backpack's dimensions and the quantity of tools you intend to carry.
- Arrangement: Seek a backpack equipped with numerous pockets and compartments for structured tool storage.
- Portability: A backpack offers easy transportability, leaving your hands available for additional tasks.
- Ease of Use: Opt for backpacks furnished with cushioned straps and handles for effortless carrying.
- Weather Protection: Contemplate a backpack that employs weather-resistant materials and zippers to shield your tools from rain and dampness.
-
Safety: The backpack's zippered primary section provides additional security, ensuring your tools are safeguarded and secured against theft.
Popular brands of zippered tool backpacks include Klein Tools, CLC Custom Leathercraft, and Milwaukee.
Zippered Tool Backpack,Zip Up Tool Bag,Zipper Tool Bag,Zippered Tool Pouch
ZHANGJIAGANG CITY XIANGLE TOOL CO., LTD. , https://www.sjxiangletoolbag.com