B.3.Shaft seal
The main function of the shaft seal is to prevent leakage of water through the pump shaft when the pump on / off.
B.3.1. Mechanical shaft seal
Mechanical shaft seal has three main components, namely:
1 Component static (not rotating) the material is made of rubber
2. dynamic component material made from carbon, ceramic, silicone carbide or tungsten carbide
3.-suppressing component in the form of spring
There are two kinds of mechanical shaft seal that seals the cartridge (built up) and traditional seal (decomposed)
B.3.1.1.Cartridge seal
Cartridge seal is a mechanical seal that all components are assembled by the factory (built-up) and a compact shape.
The advantages of the cartridge seal is easy to replace in case of damage due to removing and installing can be done from the outside of the pump. While the weakness is not possible per component replacement cartridge so that the purchase price is relatively more expensive
B.3.1.2.Tradisional seal
Traditional seal is a type of mechanical seal components decompose the other premises.
The advantages of this type of mechanical seal is a case of damage of one of the components then only those components that they will be replaced, so the price is relatively cheap. While the drawback is if there is damage it takes a long time for the replacement of the mechanical seal, due to removing the mechanical seal must dismantle the pump housing and impeller.
B.3.2.Gland packing
Shaft seal is a very simple type of material that is made of asbestos, graphite and acrylic or simply twisted to the installation pump shaft, so that the pump will have to use packing gland leakage / seepage water continuously.
The advantage of the low cost of packing gland, whereas the loss of water will always leak / exit through the gland packing
B.4. The series of pumps
B.4.1. The series of pumps Series
The purpose of the pump is mounted in series is to increase the pressure in the pipeline. The main requirement if the pump is to be installed series pumps TSB. must have a minimum capacity / discharge the same (Q1 = Q2 = Q3 etc .....). while the allowable pump pressure varies. So the pumps are installed in series results are as follows,
Qseri = Q1 = Q2 = Q3 and so on .....
Hseri = H1 + H2 + H3 and so on .....
B.4.2. Parallel pump circuits
The purpose of the pump is mounted in parallel to increase the capacity / flow of water and to conserve power by setting the on / off according to the water discharge pumps are required.
The main requirement if the pump will be installed in parallel are all pumps must have the same pressure (H1 = H2 = H3 etc .....), whereas the capacity of the pump can vary. So the results of the pumps installed in parallel are as follows,
Qparalel = Q1 + Q2 + Q3 and so on .....
Hparalel = H1 = H2 = H3 and so on .....
The series of parallel pumps are often used for booster pump system applications, the system's main purpose is to serve the needs of the booster pump water discharge varies for each time, so that the pump will pump on / off according to the water discharge is required and this means that power consumption can be saved .
The main function of the shaft seal is to prevent leakage of water through the pump shaft when the pump on / off.
B.3.1. Mechanical shaft seal
Mechanical shaft seal has three main components, namely:
1 Component static (not rotating) the material is made of rubber
2. dynamic component material made from carbon, ceramic, silicone carbide or tungsten carbide
3.-suppressing component in the form of spring
There are two kinds of mechanical shaft seal that seals the cartridge (built up) and traditional seal (decomposed)
B.3.1.1.Cartridge seal
Cartridge seal is a mechanical seal that all components are assembled by the factory (built-up) and a compact shape.
The advantages of the cartridge seal is easy to replace in case of damage due to removing and installing can be done from the outside of the pump. While the weakness is not possible per component replacement cartridge so that the purchase price is relatively more expensive
B.3.1.2.Tradisional seal
Traditional seal is a type of mechanical seal components decompose the other premises.
The advantages of this type of mechanical seal is a case of damage of one of the components then only those components that they will be replaced, so the price is relatively cheap. While the drawback is if there is damage it takes a long time for the replacement of the mechanical seal, due to removing the mechanical seal must dismantle the pump housing and impeller.
B.3.2.Gland packing
Shaft seal is a very simple type of material that is made of asbestos, graphite and acrylic or simply twisted to the installation pump shaft, so that the pump will have to use packing gland leakage / seepage water continuously.
The advantage of the low cost of packing gland, whereas the loss of water will always leak / exit through the gland packing
B.4.1. The series of pumps Series
The purpose of the pump is mounted in series is to increase the pressure in the pipeline. The main requirement if the pump is to be installed series pumps TSB. must have a minimum capacity / discharge the same (Q1 = Q2 = Q3 etc .....). while the allowable pump pressure varies. So the pumps are installed in series results are as follows,
Qseri = Q1 = Q2 = Q3 and so on .....
Hseri = H1 + H2 + H3 and so on .....
B.4.2. Parallel pump circuits
The purpose of the pump is mounted in parallel to increase the capacity / flow of water and to conserve power by setting the on / off according to the water discharge pumps are required.
The main requirement if the pump will be installed in parallel are all pumps must have the same pressure (H1 = H2 = H3 etc .....), whereas the capacity of the pump can vary. So the results of the pumps installed in parallel are as follows,
Qparalel = Q1 + Q2 + Q3 and so on .....
Hparalel = H1 = H2 = H3 and so on .....
No comments:
Post a Comment