Introduction: Centrifugal fan drive parts wear is a common equipment problem, including exhaust fan bearing locations, bearing room wear, blower shaft bearing bit wear and so on. Below, we will briefly introduce several common centrifugal fan failures and treatment methods.
Centrifugal fan drive parts wear is a common equipment problem, including the exhaust fan bearing position, bearing room wear, blower shaft bearing position wear and so on. Below, we will briefly introduce several common centrifugal fan failures and treatment methods.
First, the centrifugal fan rotor imbalance caused by vibration Causes: 1, centrifugal fan fan blades are seriously corroded or worn; 2, after the fan blade assembly does not run, due to the weight of the impeller and the spindle itself, so that the shaft bending; 3, Non-uniform impeller surface attachments, such as rust, dust or asphalt; 4, transport, installation or other reasons, resulting in deformation of the impeller, causing the impeller to lose balance; 5, balance weight on the impeller off or after repair did not find the balance.
Treatment methods: 1, repair or replacement; 2, re-overhaul, such as the long-term after the final assembly should not be used to prevent shaft bending; 3, removal of attachments; 4, repair the impeller, re-do dynamic and static balance test; 5, find balance.
Second, centrifugal fan fixed parts cause resonance: 1, the cement base is too light or poor grouting or plane size is too small, causing the fan base and ground disjointed, loose anchor bolts, base connection is not solid enough to make its foundation stiffness is not enough 2, the fan base or volute stiffness is too low; 3, with the fan connected to the import and export pipeline without support and soft coupling; 4, the proximity of the facility and the fan is too close to the foundation, or its rigidity is too small; 1, reinforced or Re-grouting, tighten nuts.
Treatment methods: 2, to strengthen its stiffness; 3, plus support and soft coupling; 4, increase the stiffness.
Third, the centrifugal fan bearings overheating causes: 1, centrifugal fan spindle or spindle parts and bearing box friction; 2, motor shaft and fan shaft do not concentric, so that the bearing box within the rolling bearing do not move; 3, bearing Excessive grease in the box; 4. Looseness between the bearing and the bearing box hole. The bolt of the bearing box is too tight or too loose.
Treatment methods: 1, check which part of the friction, and then deal with; 2, adjust the two axis concentricity; 3, the box grease room for the 1/3 ~ 1/2; 4, adjust the bolt.
Fourth, the centrifugal fan bearing wear causes: 1, centrifugal fan rolling bearing ball surface pitting, spots, rust marks and peeling phenomenon; 2, cylinder bearing inner circle and rolling bearing outer circle clearance exceeds 0.1mm.
Treatment methods: 1, repair or replacement; 2, should replace the bearing or increase the box into a circle after the inner set;
V. Causes of Centrifugal Fan Lubrication System Failure: 1. The clearance between the bearing hole of the pump and the gear shaft is too small, the radial clearance between the hole in the housing and the gear is too small; 2. The end face of the gear and the end face of the bearing and the side cover Gap is too small; 3, poor quality of oil, viscosity is inappropriate or excessive moisture.
Treatment methods: 1, maintenance, so that the gap to achieve the required range; 2, adjust the gap; 3, replace the centrifugal fan lubricants.
6. Causes of reduced air volume: 1. Decrease of speed; 2. Blockage of pipes; 3. Seal leakage.
Processing methods: 1, check the power supply voltage; 2, clear the clear pipeline; 3, repair or replace the seal.
Filtration rod filters Equipments
Filter Rod filter equipment can be divided into: ceramic membrane filter rod, stainless steel strong magnetic rod filter, stainless steel titanium rod filter. In the process of industrial production, ceramic membrane filter rod is used to treat waste water, raw water and waste liquid. The waste water can reach the national discharge standard or recycle after passing through ceramic membrane filter.
Classification and applications:
The core component of ceramic membrane filter is ceramic filter rod. It uses acid-resistant ceramic particles or quartz, corundum sand and other raw materials as the main raw materials, and adds a small amount of inorganic binder and reinforcements to carry on scientific formulation. Grading, molding, film making and other processes from processing.
Titanium rod filter uses titanium powder sintered filter element, which is made of hollow filter rod by high temperature sintering of titanium metal powder by powder metallurgy method. It is widely used in the separation of liquid and solid in food, beverage, medicine and chemical industry. It is often used in coarse filtration or intermediate filtration. The filter element has the advantages of high temperature resistance, corrosion resistance, high mechanical strength, and the filter element can be reused repeatedly. Filter equipment housing material is 316l or 304 stainless steel.
Stainless steel strong magnetic rod filter has a magnetic rod with high quality stainless steel tube and high B value rare earth alloy neodymium boron. It is made by special manufacturing method and is used to gather the powder transported by liquid, slurry flow and air supply pipeline. The strong magnetic iron impurity in gas and other enterprise phase is widely used to remove iron from high temperature condensate and back water in power industry. Also used for fluid food filling line fine metal impurities removal to ensure food safety.
Filter Rod,Filter Rod Filter Equipments,Water Filter Equipment,Cartridge Filter Equipment
Henan Sinofiltec Technology Co.,Ltd , https://www.airfilters.pl