Fan case is very commonly used in our life, which is mainly used for smoke treatment. General fan cases can be divided into two types: smoke control type and ventilation type, and the structures are centrifugal type and axial type. There are many specifications and types of fan cases, and the air volume and voltage can be adjusted by themselves. Moreover, the current fan case has the characteristics of low noise, small vibration, large air volume and small volume. In addition, the fan case is easy to assemble and disassemble, flexible to use and easy to disassemble. But many friends are not familiar with the fan case. Then next, we will tell you something about the fan case.
Fan case manufacturer
1. Dezhou Zhengnuo Ventilation Equipment Co., Ltd. is a modern large-scale enterprise integrating R&D, design, production, testing, sales, installation and maintenance of central air conditioning, ventilation and FRP products. ? After years of market development and technological innovation, the enterprise has formed a continuous supply of new technologies, new processes, new materials and? The ability of new equipment.
2. Beijing Tian Yu Chengxue Technology Co., Ltd., located in Changping District, Beijing, is a professional manufacturer and seller of fresh air ventilation? Companies of ventilation equipment, such as machines, air conditioning units, smoke exhaust fans, stainless steel air valves, etc. Since its establishment, the company has been? Adhering to the purpose of customer first, first-class quality, rigorous management, efficient production and excellent service are the public? Our policy, and with a highly responsible spirit to customers, honest and realistic attitude? Reliable product quality and high water? Ping's technology and management have won the trust of customers.
3. Jingjiang Yiheng Air Conditioning Equipment Manufacturing Co., Ltd. is located in Jingjiang City. Across the river from Shanghai and Nanjing, Shanghai-Nanjing Expressway and Beijing-Shanghai Expressway connect Suzhou-Wuxi-Changzhou and Beijing-Guangzhou as a whole, with Nantong, an open port city in the east, Xinchang Railway in the west, a 11,111-ton marine wharf on the Yangtze River in the south and a first-class expressway in Ningtong in the north. The land and water transportation is convenient and the operating environment is excellent.
installation method of fan case
The installation of fan case looks simple, but in fact, many installers do not pay enough attention to it, which often leads to accidents, ranging from damage to equipment to personal injury. Therefore, site managers must pay attention to the installation of fan case.
before installing the fan case, technicians should first draw the installation baseline on the ground according to the design drawings. Then the installer will clean the foundation surface of the fan case and clean the reserved holes of the anchor bolts.
the large-volume fan case is generally installed on the ground, while the small-volume fan case is generally installed on the ceiling. Construction personnel of all types of work should strictly abide by the safety operation procedures and safety procedures for aerial work. The ropes used for handling and hoisting of the large integrally installed fan case cannot be tied to the rings of the rotor and the case or bearing cover. When the fan case is installed on the base with shock absorbers, the load compression of each group of shock absorbers should be evenly distributed and not eccentric. The fan case is installed on the bracket without shock absorber, and should be padded with 4 ~ 5 mm thick rubber plate, which should be fixed firmly after leveling and alignment. After the fan case is installed as a whole and placed on the foundation, it must be leveled and aligned with pad iron, and the inclined pad iron must be used in pairs.
during installation, pay attention to the levelness of the shaft of the fan case. When the fan and the motor are connected by coupling, the center lines of the two shafts should be on the same straight line. When the fan case and the motor are driven by a V-belt, it is necessary to ensure that the axes of the motor and the fan of the fan case are parallel to each other, and the center lines of the two pulleys should coincide. Check the tension of the V-belt. Tap the middle of the installed belt by hand, so as to bounce slightly.
if the transmission device of the fan and motor in the fan case is exposed, the exposed part must be protected and cannot be exposed. The suction port of the fan case should be equipped with a protective net.
the electric control part of the fan case should be operated by electrical professionals, and non-electrical operators are forbidden to tamper with electrical appliances. The specifications and models of electrical materials should meet the design requirements and the relevant provisions of the national electrical product standards. The packaging of electrical appliances is intact, the appearance should not be damaged, and the accessories and spare parts are complete. Plastic wire protection tube and junction box must be flame retardant products, and the appearance should not be damaged or deformed. The cross-sectional area of the conductor used in the power cord should meet the maximum output power of the fan case with a margin. There should be no damage and cracks in the appearance of metal wire protection tubes and junction boxes. During installation, the pipeline direction and the positions of switches and sockets should be determined according to the position of the fan case.
after the electrical part of the fan case is installed, the electrical operator should inform other construction workers on the site before power transmission. Then, the fan case began to test. Before the trial operation of the fan case, the fan case can be powered on only after the correct phase sequence of the power supply is checked, and at the same time, the rotating direction of the impeller is checked. The trial run time of fan case at rated speed shall not be less than 2 hours. After the fan case is running, the installer should check whether the fan case is displaced again and make on-site records.
to do a good job of fan case installation, the field personnel must be careful and meticulous. Only in this way can the fan case installation task be successfully completed.
Fan case is still very important in our life, and it is used in many industries, such as catering industry, industrial production, food processing industry and so on. The fan case is internally provided with a heat insulation board and a sound absorption board. The fire smoke exhaust pipe of fan case adopts high temperature resistant structural plate, motor and transmission parts. Therefore, the service life of the fan case is very long, and the fan case can emit high-temperature flue gas above 281℃ and run continuously for more than 111 minutes. But when installing the fan case, we must pay attention to keep it balanced, horizontal and more than 21 cm high.