Home>Bearing knowledge>Boiler feed pump presents the cause and protection criteria

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Boiler feed pump presents the cause and protection criteria

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Boiler feed water pump is the key to the safe and stable operation of the boiler system; it is an important component of the boiler active liquid level conditioning system designed and composed using modern active control technology. At present, China has more than 400,000 boiler equipment; most of them are Boiler systems for industrial enterprises and boiler systems for power plants; very small ones are used in commercial areas such as residential bathhouses. The basis of boiler operation during the safe operation of water pumps. The problem of the water pump will seriously endanger the operation safety of the boiler; severely, it will also lead to the occurrence of major incidents. Therefore, strengthening the normal protection and repair of the boiler system feed pump has become an important task for modern boiler protection.
1. Normal protection based on prevention of disease prevention <br> It is necessary to prevent the normal protection of modern boiler feed water pumps; to establish a scientific protection system and guidelines; to provide normal protection for water pumping. Replace the record; specifically grasp the damage moment of each component; in order to replace the parts in time before the service life; prevent the parts (such as bearings, etc.) from being damaged and find that the unit is not damaged in time. Others; Smooth system protection; regular inspection of smooth oil quantity; smoothing of parts in time; preventing the occurrence of "dry grinding" and other conditions. Before the increase of smooth oil, pay attention to checking the oil quality and increasing the cleanliness of the mouth; Impurities damage the bearing. In the protection, we must pay attention to the inspection and protection of the pipeline of the feed pump system; timely plugging the leakage; the anti-rust coating on the outside of the pipeline should be checked frequently; In order to ensure the corrosion resistance of the pipeline, the protection also needs to pay attention to the inspection and protection of the water supply system of the feed pump.
2. Boiler feed pump fault analysis and sweeping. ǎ保┑缍玫缍鹊姆治鲇肱懦鲇肱懦诓捎缍Φ mother beauty lip glass 蛔钗<Tombs 暇 暇 堑缍. The reason for the formation of motor overheating is mainly due to voltage bias High or low, poor transmission, ventilation system problems or unit faults cause the motor to overheat. When the motor overheats severely, it will cause insulation burnout and broken rotor bars. Therefore, when the motor is overheated, other pneumatic methods should be selected; Perform maintenance check. The motor caused by voltage is overheated and the motor power supply system should be checked. After the recovery and stability, the boiler feed pump motor is overheated. Other poor transmission will also cause the motor to overheat; because the transmission between the motor and the feed pump is not smooth. The motor load is too large; the appearance of the small horse-drawn carriage is presented; the motor overload is the temperature rise. It is necessary to carry out maintenance in time; the formation of the unit is faulty. The traditional system of the motor and the feed pump is completely checked; common tradition Poorness is mainly due to the formation of the bearing system, lack of oil, bearing damage, etc. Replace or smooth. It is one of the most common problems caused by overheating of the motor due to the problem of the same system; the first reason is the operation of the fan system due to damage of the fan, blockage of the ventilating holes, bearing wear, etc.; Severe will also burn the coil. This situation needs to be investigated item by item; find out the cause of the problem; Xiao Chang ventilation channel, repair the fan, replace the bearing to deal with the problem.
ǎ └ └ 骞 骞 骞 骞 骞 骞 骞 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢 蚴怯捎谥岢After the pump body is overheated, it should first check whether the smooth system is short of oil or smooth oil is rich in impurities; secondly, check whether the bearing can be damaged. If the pump body that has just been overhauled is overheated, check whether the rolling bearing or the bracket cover can be too small. After the above inspection, the pump body still shows heat. Check whether the pump shaft is tortuous or the two shafts are not the same, check the impeller balance together; adjust the pump shaft or adjust the concentricity of the two shafts; remove the balance hole of the impeller; Impeller transition balance; sweeping faults.
ǎ常┕昧髁┕昧髁蛔愎昧髁蛔愎昧髁康饕蛑饕 饕蛑饕 靡 鸹怠 鸹怠 苈 苈 苈 苈 鸹怠 鸹怠 鸹怠 . . . . . . . . . . . . . . . . . . . . . . . . . . Lack of flow. Check the pipeline after checking the belt; the flow of the blocked leak is still lacking. It should be considered whether the impeller damage can be observed. Check the impeller and smooth the bearing and other parts; prevent the lack of flow due to the lack of smoothness or damage of the bearing.
ǎ矗┕ 低 低 低 低 低 低 岢 岢 岢 岢 岢 岢 岢 岢 岢 岢 岢 岢 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪 蛔恪捎谌蠡 蛉蠡 蛉蠡 又 又 又 又 又 又 桑 桑 桑 桑 桑 桑 桑 桑 桑 桑 桑 桑 桑 桑 桑 桑 婊 婊 婊 婊 婊 婊 婊 婊 婊 龆 龆 龆 龆 龆 龆 龆 龆 龆 龆 龆 龆 龆 龆Severely endanger the safe and stable operation of the unit; and the excessive sensation has an important impact on the unit and the base of the unit. The reason for the excessive sensation of the unit is that the pump shaft or the rotor shaft of the motor is deformed, the bearing is damaged and the base is damaged. Loose anchor bolts, etc.. After the unit has been oscillated too much; it should be checked first whether the fixed base bolt can be solid; secondly, it can check whether the bearing part can be overheated and the transition is not smooth. If the above condition is over, it can be concluded that the oscillation is too large. Bearing damage is formed. After the other reasons are removed, the unit can be oscillated as usual; it can be considered that the pump shaft or the motor rotor shaft is deformed and the oscillation is too large. The deformation of the pump shaft or the motor rotor shaft is mostly temporary deformation; Deformable portion is formed superheated bad formation. Modification can be stopped after the temperature equalization can not see.
3. Boiler feed pumps cause of the malfunction analysis <br> modern large boiler feed pump system consists of more than one to the water pump; initiated by two to three main feedwater pump; one or two electric feed pump as a backup or to adjuvant such. The pump equipment is conducive to the problem of the boiler main engine system is not satisfactory or the boiler operation requirements are not satisfactory; the standby feed pump system is used to make up for the lack; the boiler that stops due to the water supply pump is stopped. The common boiler feed water pump problem is mainly concentrated in the smooth oil system and sheltered from the wind. System, speed regulation system, auxiliary motor overheating and lack of flow, etc. After scientific analysis and fault finding, the basis of sweeping and treating boiler feed water pump faults.嘈 收 收 收 俅 俅 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿 鱿
Boiler feed water pump is the basis for safe and stable operation of the boiler. 孀 远 远 踉 踉 踉 挠 挠 挠 挠 茫幌 蛔 蛔 蛔 蛔 蛔 蛔 丶 丶 丶 丶 丶 丶 丶 丶 丶 这些 这些 这些 这些 这些 这些 这些 这些 这些 这些 这些 这些 这些 这些 这些The end result is endless; the reason is that some equipment repairs do not have a good grasp of the cause of boiler feed water pump problems.
Boiler feed water pump is an important component of modern boilers; it has an important impact on the safe and stable operation of boilers. Therefore, it is necessary to pay attention to the protection and handling of boiler feed water pump system for boiler protection and handling; In time to replace the parts that have expired in service; prevent damage to the unit after the parts are damaged. Establish the protection of the feed pump system; according to the boiler operation status and scientific analysis; determine the replacement time; The stable operation of the pump system. This requires some protection to strengthen the cultivation of professional and technical personnel; the demand for professional and technical personnel not only has a high knowledge and technology of boiler feed water pump; but also has the concept and method of modern equipment management. With a high level of professional technology to ensure safe and stable operation of the boiler.

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