ã€Vacuum pump is a vacuum pump in a variety of ways to improve in a closed space to produce and maintain the vacuum device has been widely used in metallurgy, chemical, food, electronic coating and other industries, much market users attention And favor. However, users are using the process, they often find the bearing fever, the temperature is too high, then what is the reason, the following Xiaobian interpretation for you a reason. Causes of vacuum pump bearing fever Vacuum pump bearing fever during operation is mainly based on its work in high-speed conditions formed, the specific reasons include the valve cracking, shaft seal failure, the bearing preload too large, a sensational impact, smooth appearance and Bearing damage six factors, the following is a detailed analysis: 1. Valve cracking: valve cracking led to the pressure on both sides of the impeller imbalance, rotor axial force will occur, so that the bearing load aggravated, long-term operation will make bearing temperature rise. 2. Shaft seal failure: When the shaft seal packing failure or seal water hole is blocked will affect the pump suction and exhaust performance. As long as one side of the seal failure, the formation of pressure on both sides of the impeller imbalance, the rotor axial force, the bearing load increased, so that the bearing temperature increases. 3. Bearing preload is too large: This situation will promote the reduction of bearing clearance or no play, the formation of bearing temperature. 4. Sensational effects: pump or bearing a sensation of magnitude will cause the bearing temperature is too high. 5. Smooth appearance: smooth grease increases too much or too small, or non-smooth grease type, the use of time is too long may be smooth grease is polluting will form a bearing fever. At the moment, you should check the type of grease, ask the appropriate amount of manufacturers, adjust the smooth grease can recover bearing temperature. 6 bearing damage: bearing rolling body and bearing cage damage will be accompanied by the appearance of bearing overheating. Bearing damage is timely replacement of new bearings. The above is the cause of the vacuum pump bearing fever and related countermeasures, the saying goes: "be prepared", only with relevant knowledge, meet the appropriate conditions in a timely and effective response, I hope the above information to your understanding and learning help. This article is copyrighted industry interconnect (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor: Zeng Fenfen (QQ / micro letter:) starting: http: //beng.liuti.cn / (Service Hotline:)
Roof
ventilator
Roof Ventilator is on the roof,
no room space is the main advantage of it.
Roof ventilator is generally
used for low pressure exhaust in factories, kitchens, warehouses and small
pressure systems for commercial purposes. Low initial investment and low
operating costs.
Description
of roof ventilator:
Material:201stainless steel/304 stainless steel/430 stainless steel/ color steel plate/galvanized sheet
Size: 300/360/400/500/600/700/800mm( by diameter of fan`s base)
Advantages of roof ventilator:
1. Automatically operate.Save labor, save time.
2. No operating cost, no electricity consumption, environmental protection, energy-saving
3. No maintenance needed, life-long service
4. Light weight, strong and durable construction
5. Weather resistance, strong fray resistance, fine non-validity,
self-cleanness, high revolving sensitivity and high ari venting
efficiency.
6. Easy installation. Installation Position: flat roof, pitched roof, concrete roof and contour plate of various industrial plants.
Application of roof
ventilator:
Widely used in warehouse, toilet, factory, workshop, stadium, tennis hall, assembly hall, garage, paper mill, galvanization factory and coating factory.
Roof Ventilator
Roof Ventilator,Roof Ridge Vent,Roof Exhaust Vent,Roof Exhaust Fan
Shijiazhuang Zhouming Steel Building Materials Co., Ltd. , https://www.zmsteels.com