Release time: 2020-02-08 04:46:27
Blower is classified according to the direction of gas flow, which can be divided into centrifugal, axial flow, diagonal flow (mixed flow) and cross flow types. According to the model, it can be divided into general fans, dust exhaust fans, industrial ventilation fans, boiler induced fans, mining fans and so on. As many industries now require fan equipment, such as underground garages, factories, mines, tunnels and other places, fan equipment is required to ventilate and exchange fire and high temperature exhaust smoke from fire fighting.
Some common sense you must know about axial flow fans. During the operation of the fan, the fan needs to be rotated to make the air flow, so it is necessary to keep the operating environment neat and clean. Especially the surface of the fan and the position of the inlet and outlet seals, if there is often debris, it may be sucked in and cause machine failure.
Blower temperature treatment measures: repair gaps;
Fans for power plant boilers are mainly two types: blower (send) fans and induced (exhaust) fans, followed by pulverized coal fans, flue gas recirculation fans, desulfurization fans, primary and secondary fans, and cooling tower fans. .
From the 1970s in China, the advanced technology of foreign centrifugal compressors was introduced. After digestion, absorption and innovation, the product quality was improved. As long as the quality and delivery time are guaranteed and the price advantage is used, it is internationally competitive. Especially after China's accession to the WTO, it is entirely possible to increase fan exports. From the historical situation analysis, the main export varieties are small and medium-sized fans and fan accessories. The main gap between domestic manufacturers of this type of fans is that the surface quality does not meet export requirements. If the appearance quality is improved, and they have a price advantage, the prospects in foreign markets are broad. From the perspective of fan exports from 1991 to 2000, the export of small and medium-sized fans was not stable enough, and there was no obvious growth trend. However, with the continuous progress of technology, it is expected that the export volume of this type of wind turbine will continue to increase, and it is predicted that it will increase at an average annual rate of about 5% on the basis of 2000. 
The working pressure of the vortex fan must not be greater than the rated pressure during operation to avoid damage to the air pump caused by excessive heat generated by the fan. If the temperature is hot during use, you can replace the fan with a larger model to solve this problem.
Roots fan motor overload problem is solved: 1. Lubricant does not work, it is recommended to exchange high-quality lubricant. 2. The oil ring does not rotate or rotates too slowly. Repair or replacement is recommended here. 3. The fan shaft motor is misaligned. It is recommended to re-center here.
What to do about the problems in the blower chemical system: common faults: overpressure. The inlet and outlet valves are not opened when the machine is turned on. It should be empty before starting and then pressurized gradually. Too much feed will cause the water level to be too high and the pressure will be too high during operation. In both cases, the impeller deforms;
What is "Surge"? Surge is an abnormal vibration that occurs when the turbine compressor's flow rate is reduced to a certain degree. Centrifugal compressors are a form of turbo compressors. Surge can cause serious damage to centrifugal compressors.
The gas pressure fan is welded with high-quality carbon steel and the frame to ensure the rigidity of the whole machine. The casing is coated with epoxy resin to enhance the anti-corrosion performance. The lower part is equipped with G3 / 2 "blowdown valve; the inlet and outlet flanges of the fan adopt standard flanges to facilitate user pipe connection.