Nanchang Jin Xiangyun plant cooling ventilation equipment is a professional sales suction fan, cooling water curtain, chiller suppliers. Jinxiang Yun cooling ventilation equipment | suction fan Nanchang | Nanchang FRP suction fan | curtain Nanchang | Nanchang Pad | Nanchang home chiller | Nanchang chiller | Jiangxi suction fan | Jiangxi home air cooler | cooling fan, Jiangxi, Nanchang gold clouds in Nanchang plant cooling ventilation equipment industry enjoyed a high reputation, has many years of industry experience, Nanchang fans, can provide customers with products and professional services. How large wind turbine installation outside its maintenance is 1. impeller (1) whether the impeller is firmly fixed to the shaft shoulder, impeller for cracks, wear and dust and so on, if any should be handled. (2) The impeller should be kept clean, otherwise it would damage the balance of the impeller, the rotor fluctuate. (3) Once the impeller is repaired, then you need to carry out further balancing, then you should check whether there is loosening the bolts. (4) the axial position of the impeller is correct, the radial gap is within the normal range. 2. The inside of the cabinet and the inlet chamber and the intake chamber of the cabinet is serious wear and tear, to regularly check the fastening bolts are tightened. 3. Does the spindle and the coupling (1) The spindle is clean, if dirt should be removed. (2) some of the sealing position should be checked, whether there is corrosion. (3) The coupling is clean and tidy, coupled fastening is good. 4. Bearing (1) bearing lubrication is good, the seals are good, whether you need to replace the new seal. (2) bearing can work properly, use the process for problems. Nanchang Jin Xiangyun plant cooling ventilation equipment is a professional sales suction fan, cooling water curtain, chiller suppliers. Jinxiang Yun cooling ventilation equipment | suction fan Nanchang | Nanchang FRP suction fan | curtain Nanchang | Nanchang Pad | Nanchang home chiller | Nanchang chiller | Jiangxi suction fan | Jiangxi home air cooler | cooling fan, Jiangxi, Nanchang gold clouds in Nanchang plant cooling ventilation equipment industry enjoyed a high reputation, has many years of industry experience, can provide customers with products and professional services. Centrifugal fan performance measurement, which can be divided into the following main purpose, as follows: (1) be familiar with and know how to properly use the blower fan Nanchang offer performance measurement device to measure the performance of the fan; (2) control experiment specific methods Procedure and; (3) Determination of the performance of the fan, and then converting the result into a characteristic curve obtained, and converted into parameters. In this experiment equipment, specifically, the test device is the use of an intake test, the amount of wind turbines is the use of the inlet cone collector to be measured, which is a test test duct piping section drift, rectifier gate, etc. These are components. Nanchang Jin Xiangyun plant cooling ventilation equipment is a professional sales suction fan, cooling water curtain, chiller suppliers. Jinxiang Yun cooling ventilation equipment | suction fan Nanchang | Nanchang FRP suction fan | curtain Nanchang | Nanchang Pad | Nanchang home chiller | Nanchang chiller | Jiangxi suction fan | Jiangxi home air cooler | cooling fan, Jiangxi, Nanchang gold clouds in Nanchang plant cooling ventilation equipment industry enjoyed a high reputation, has many years of industry experience, can provide customers with products and professional services. A brief description of the difference between the forward and backward analysis of forward centrifugal fan centrifugal fan, the material is the use of high-quality steel Nanchang suction fan, then crimping process. Its main advantage is low speed, you can use a smaller or thinner bearings, and the operating range is wide, and low cost. However, it also has shortcomings, mainly structural strength of the blade is relatively low, and therefore can not run at a high speed. Backward centrifugal fan, it is by casting, mainly used for air ventilation, dust and smoke, and its main advantage is the high efficiency, low noise and air volume, but its balance demanding fan wholesale Nanchang and prone to fluctuate after changes in working conditions. Next, we have to analyze where the difference between them. One difference: power to overcome the system resistance static head, centrifugal fans to pour forward after less than centrifugal fan. Since the fan blades in the backward channel is gradually expanding, so the hydraulic loss is less than the front-loaded, so that, after the forward centrifugal fan centrifugal fan less efficient than dumping. Difference between the two: power consumption due to the centrifugal fan after the forward tilt less efficient than centrifugal fan, so after dumping its power consumption is greater than the centrifugal fan. Third difference: noise forward centrifugal fan operating noise centrifugal fans to pour over the latter.