Shijiazhuang Shiza Pump Industry Co.,Ltd. |
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LC/LCP Series Mechancial Seal For Desulfurization Pump,Pump Spare Part
Product Overview
The mechanical seal of the pump is one of the mechanical basic components with precise and complicated structure, and is a key component of the pump machinery. Its sealing performance and service life depend on many factors, such as selection, machine accuracy, proper installation and use.
The mechanical seal of the pump refers to the device that is
installed and operated in the pump type device to function as a
dynamic seal, and avoids a component of the pump medium flowing out
of the water pump through the pump shaft;
Because the water pump is mostly for conveying fluid medium, it has
the characteristics of horizontal installation, high rotation
speed, high pressure, solid particles and strong corrosiveness.
Therefore, the mechanical seal body material of the pump often
needs to resist the impact of solid particles and the sealing
caused by high speed. The high-temperature abrasion, high-pressure
sealing parameters are unstable, the base structural parts are
corroded and other unfavorable factors, and the mechanical seal
sealing material is required. Generally, the sealing surface
friction pair is made of nickel-based hard alloy and cobalt. Base
hard alloy, pressureless sintered silicon carbide, reactive
sintered silicon carbide, metal immersion graphite,
polytetrafluoroethylene filled graphite, PTFE filled glass fiber,
aluminum oxide special ceramics, etc.; base material can be
selected as 2Cr13 Stainless steel, 301 stainless steel, 304
stainless steel, 316 stainless steel, 316L stainless steel, 904L
stainless steel, PTFE, etc.; spring compensator can be selected
from Hastelloy, 1Cr18Ni9Ti, 3Cr13, etc.;
Different from the mechanical seal of the kettle, the sealing medium for the mechanical seal of the pump is mostly liquid, solid-liquid mixture and atmospheric gas; while the mechanical seal for the kettle is mostly used to seal high-pressure gas or gas-liquid mixture, and the leakage will cause serious damage to the environment and living things. Threat.
The mechanical seal of the pump is one of the mechanical basic components with precise and complicated structure, and is a key component of the pump machinery. Its sealing performance and service life depend on many factors, such as selection, machine accuracy, proper installation and use. There are a wide variety of mechanical seals for pumps. Different models, its maintenance is also difficult to distinguish and judge.
Structural features:
1. Single end, integral assembly, two-way rotation, independent of
pump shaft adjustment
2. The axial dimension of the integral part should be larger than
the installation size so that the positioning block can be easily
removed during loading.
3. Before starting the equipment, the flushing water should be
opened first. Do not leave the oil seal in dry friction. The water
pressure should not be too large (≤0.08MPa).
4. The mechanical seal is completely in the medium, and has strong
anti-blocking ability, suitable for high concentration conditions.
5. The friction pair material is L-pad embedded with hard alloy,
silicon carbide, which can be operated for a long time under high
temperature medium. Different friction pairs can be selected
according to different media to ensure its long-term use effect.
Scope of application:
1.Medium: solid particles and crystalline fluids such as alumina
slurry, limestone, gypsum slurry, 2.beneficiation slurry, coal
washing slurry, etc.
3.Temperature: -20 ° C ~ 160 ° C
4.Pressure: ≤ 4MPa
5.Line speed: ≤15m/s
6.Concentration: ≤35%
7.Shaft diameter: Φ60-Φ320