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 plate, 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, but there Changes in operating conditions likely to cause volatility. 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. 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. Regardless of the axial fan brand safety precautions that must be mastered 1. Commissioning Safety Precautions (1) should develop a good test program, by the person responsible, unified command. (2) The person shall be responsible for driving and parking and set the mark test, all unrelated persons, they can not enter the test site. (3) The test should certificates. (4) before commissioning the fan wholesale Nanchang, check the motor rotation direction is correct, then joins the coupling, the protective cover installed before trial run. (5) In the testing process, to observe whether the fan normal operation of Nanchang fans offer, if an exception should be immediately stopped, and the processing. 2. Maintenance Safety Precautions (1) strictly enforce the regulations technological aspects, as well as some of the security system. (2) The device should have a good grounding in Nanchang suction fan, safety shield on the device can not be removed with the table, but can not use substandard or deterioration of the oil. (3) Before starting the device, the first for the disk drive, can not touch the rotating parts point test, the device is running. 3. Maintenance Safety Precautions (1) Before maintenance, the device should be cleaned and cleaning equipment to keep clean. (2) Maintenance should be in the device is powered down state, and hang warning signs. (3) maintenance is completed, the tool used to, and maintenance of the components, should be placed in the specified location, neatly, can not just be placed to avoid damage or loss. 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. Practice for high pressure centrifugal fan high pressure centrifugal fan operating procedures as follows: 1 fan before start, closing the intake air control valve, the wind slightly open valve. The gap between the various parts of the fan to check the suitability of the rotating part and whether the collision between the fixed part or friction phenomenon. 2. Coupling not someone near Nanchang fans, and to add security cover. 3. The bearing housing oil level is at the minimum and maximum oil level lines, lines, meters and other is normal, the cooling system is working. 4. After the fan starts to gradually open the damper until the specified load. Fan during operation, the bearing temperature can not be higher than 40 ℃, the surface temperature can not be higher than 70 ℃. 5. If the fan phenomenon occurs severe vibration or impact or bearing temperature abnormal phenomenon, should immediately emergency stop, and promptly investigate the cause.