【Q&A Question 157】2016.09.24
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This post was last edited by liuquan1100 on 2016-9-24 08:35. [Q&A Question 157] 2016.09.24: What is the function of an oil seal or a water seal? What are the hazards after loosening? The answer key will be available after responding; scoring is based on answering the key points. The oil seal ring or water seal ring is located on the outer edge of the end caps at both ends of the bearing housing; it is fixed to the shaft with bolts and rotates together with the shaft, serving to prevent the lubricating oil inside the bearing housing from leaking out. In addition to this function, the water seal ring also prevents cooling water from entering the bearing housing. If the oil seal or water seal becomes loose, the pump should be turned around immediately for treatment. Otherwise, leakage of lubricating oil from the bearing housing leads to a drop in oil level, which not only causes significant damage to the bearings but also results in friction between the high-speed rotating shaft and the oil seals as well as water seals and the bearing housing, generating heat; in severe cases, sparks can be produced, leading to serious fire accidents.
Oil leakage will occur after loosening, resulting in insufficient lubrication of the unit
Fling the oil back to prevent it from leaking out. It cannot provide a seal after becoming loose
The oil baffle ring prevents lubricating oil from splashing out, while the water baffle ring stops the cooling water used for end-face sealing from entering the bearing housing. After loosening, lubricating oil or cooling water will leak, affecting the lubrication effect and causing the bearings to be damaged due to high temperatures
The oil baffle ring or water baffle ring is located on the outer edge of the end caps at both ends of the bearing housing; it is fixed to the shaft with screws and rotates together with the shaft. The oil baffle ring serves to prevent lubricating oil from splashing out, while the water baffle ring, in addition to performing this function, also prevents cooling water from the face seal from entering the bearing housing. When the oil seal and water seal become loose, it should not be taken lightly; instead, enhanced maintenance is necessary. When these seals completely come loose from the bearing cover, they should be tightened before starting the machine. Because once the oil (water) seal ring becomes loose, it can no longer serve to seal the bearing housing; as a result, the lubricating oil inside the housing leaks out along the shaft, causing the oil level to drop significantly. With less oil in the housing, it is easier for the bearings to overheat. Additionally, if the oil (water) seal ring falls onto the coupling or the end cover, the continuous impact can generate sparks, and in the presence of leaking hot oil or flammable gases, this can lead to a fire. Therefore, when the oil (water) seal ring becomes loose or falls off, the pump should be stopped immediately for repairs.
When the oil seal or water seal becomes loose, oil gets mixed with water, resulting in emulsification and deterioration.
The oil baffle ring or water baffle ring is located on the outer edge of the end caps at both ends of the bearing housing; it is fixed to the shaft with screws and rotates together with the shaft. The oil baffle ring serves to prevent lubricating oil from splashing out, while the water baffle ring, in addition to performing this function, also prevents cooling water from the face seal from entering the bearing housing. When the oil seal and water seal become loose, it should not be taken lightly; instead, enhanced maintenance is necessary. When these seals completely come loose from the bearing cover, they should be tightened before starting the machine. Because once the oil (water) seal ring becomes loose, it can no longer serve to seal the bearing housing; as a result, the lubricating oil inside the housing leaks out along the shaft, causing the oil level to drop significantly. With less oil in the housing, it is easier for the bearings to overheat. Additionally, if the oil (water) seal ring falls onto the coupling or the end cover, the continuous impact can generate sparks, and in the presence of leaking hot oil or flammable gases, this can lead to a fire. Therefore, when the oil (water) seal ring becomes loose or falls off, the pump should be stopped immediately for repairs.
The oil baffle ring or water baffle ring is located on the outer edge of the end caps at both ends of the bearing housing; it is fixed to the shaft with screws and rotates together with the shaft. The oil baffle ring serves to prevent lubricating oil from splashing out, while the water baffle ring, in addition to performing this function, also prevents cooling water from the face seal from entering the bearing housing. When the oil seal and water seal become loose, it should not be taken lightly; instead, enhanced maintenance is necessary. When these seals completely come loose from the bearing cover, they should be tightened before starting the machine. Because once the oil (water) seal ring becomes loose, it can no longer serve to seal the bearing housing; as a result, the lubricating oil inside the housing leaks out along the shaft, causing the oil level to drop significantly. With less oil in the housing, it is easier for the bearings to overheat. Additionally, if the oil (water) seal ring falls onto the coupling or the end cover, the continuous impact can generate sparks, and in the presence of leaking hot oil or flammable gases, this can lead to a fire. Therefore, when the oil (water) seal ring becomes loose or falls off, the pump should be stopped immediately for repairs.
The oil baffle ring or water baffle ring is located on the outer edge of the end caps at both ends of the bearing housing; it is fixed to the shaft with screws and rotates together with the shaft. The oil baffle ring serves to prevent lubricating oil from splashing out, while the water baffle ring, in addition to performing this function, also prevents cooling water from the face seal from entering the bearing housing. When the oil seal and water seal become loose, it should not be taken lightly; instead, enhanced maintenance is necessary. When these seals completely come loose from the bearing cover, they should be tightened before starting the machine. Because once the oil (water) seal ring becomes loose, it can no longer serve to seal the bearing housing; as a result, the lubricating oil inside the housing leaks out along the shaft, causing the oil level to drop significantly. With less oil in the housing, it is easier for the bearings to overheat. Additionally, if the oil (water) seal ring falls onto the coupling or the end cover, the continuous impact can generate sparks, and in the presence of leaking hot oil or flammable gases, this can lead to a fire. Therefore, when the oil (water) seal ring becomes loose or falls off, the pump should be stopped immediately for repairs.
Oil and water resistance. Oil and water interpenetration.