A bio chemical factory in Germany, will be successful in one control element steam sterilization radial fan from the original double action liquid lubricating axial surface sealing ring into now use double action gas lubricating axial surface sealing ring.
Mechanical components with rotating blades, gas lubricating axial surface sealing ring usually represents a modern technology, but also for a better way of sealing gas or liquid medium. One of the outstanding characteristics of the high efficiency of the sealing technology is no wear, low energy consumption. The sealing device and cartridge and a similar set of components, and then with proper sealing gas delivery system, makes this kind of axial lubrication surface gas sealing ring can be applied to a series of device of mixer, pump, blower and fan etc..
In the axial lubrication gas face seal ring, a gas barrier between the media and the need for isolation of atmosphere. This gas fence work at higher pressures, to separation and lubrication of sliding surface. Using gas to replace the fence pressurized liquid sealing device, and the following special benefit. The gases used under normal circumstances are relatively inert gas such as nitrogen etc., when used for sealing the liquid medium, because gas and medium aggregation of different forms, gas is very easily and is pumped liquid medium go away. The separation process can be easily in a gas purifying device for. Therefore, the sealing products to avoid debris pollution, and has a higher purity, product market prices also can therefore be higher. When we need to seal is a gas, for example in the use of the fan and blower in. Using gas lubricated seal ring is likely to avoid complex liquid usually gas seal required delivery device, and also achieve the gas seal "liquid". In a liquid sealing device, if the liquid film can not be protected, there is danger of no-load operation.
Double action gas lubricated seal system and double action liquid lubrication sealing system (standard sealing ring and a standard delivery system) of the purchase price is not much difference. However, from the manipulation cost point of view, using the gas lubricated seal system are more likely to save money. Because the gas lubricated seal system, if proper manipulation of words, the use of time than liquid lubrication sealing system is much longer, and gas lubrication sealing system energy consumption to less, maintenance costs low, cost of service will be less. Special design of the following more shows its effectiveness in different application conditions, especially in chemistry and chemical industry:
- AGS sealing ring for a mixer, dryer, blending machine and reactor.
- CGS sealing ring for a pump, suitable for those who clean no residue medium.
- CartexGSD sealing ring for a pump, suitable for those with mild or moderate residue of chemical products.
- HRCGSD sealing ring is applicable to chemical products of severe residual, even can contain solid component.
GSOD sealing ring is very suitable for a small blower and fan. Here is an example, in view of GSO - D sealing ring Co. free space in the summer of 1998, a German biological chemical factory of steam sterilization radial fan started using GSO D sealing ring. Objectively speaking, this move is the use of a sealing ring wear free, which not only takes into account the special requirements of sterilization, and at the same time, the higher the operating reliability and longer service life but also guarantee. Further, the design of the sealing ring must also take into account the conventional sterilization by high temperature of 132 DEG C, the steam pressure of 1.9bar. Double ring gas this short, strong sealing can represent a kind of ideal product, be attributed to the reverse rotating ring (applied to products and the extensive use of atmospheric interface). And a sealing ring arranged back-to-back usually used are compared, here we use a sliding face-to-face arrangement.
Sliding material can be based on different requirements, choose to use the hard / soft or hard / hard composite material. Special applications here, we choose is the use of silicon carbide and tungsten carbide composite. In order to match with the saturated steam sterilization, this also a special material EPDM. The ring is designed to be ammunition barrel structure unit has a preassembled characteristics of axial surface seal, thus avoiding the errors in assembly process. It is worth mentioning that the sealing ring to go through rigorous stress tests in the factory before, to ensure the sealing ring of high quality, reliable function. Since the 1998 August installation, axial surface sealing ring has been running stably, the gas consumption rate of fence also maintain constant.