Precautions for installation of non electric ball valve in circulating fluidized bed boiler Gongyi Dongfeng Equipment Manufacturing Co., Ltd. is a manufacturer of waterproof casing, electric ball valve, expansion joint, power transmission joint, sleeve electric ball valve, electric ball valve, pipe electric ball valve, non electric ball valve, electric ball valve, stainless steel electric ball valve, non flexible electric ball valve, Fabric electric ball valve and other electric ball valve models. Next, we will introduce the installation precautions of non electric ball valves in circulating fluidized bed boilers.
Non electric ball valve is composed of non skin, thermal insulation part, flange, rib plate, bolt, stainless steel mesh, ceramic fiber rope or pillow shaped sealing material, etc. The skin is made of temperature resistant valve and glass cloth. Non electric ball valve, also known as non electric ball valve, is mainly used to absorb the relative displacement of two parts with relative displacement and seal the connecting channel between two parts with relative displacement. Non electric ball valve is an important part of circulating fluidized bed boiler. Its installation quality directly affects the sealing of circulating fluidized bed boiler, and then affects the safe and stable operation of the boiler. Therefore, it is very important to study the installation of non electric ball valve.
Due to the structural characteristics of the circulating fluidized bed boiler, several large components have their own fixed expansion centers, such as the furnace, the tail shaft flue, and the cyclone separator. In this way, the connection between the two components requires an electric ball valve, which not only provides a connection seal, but also makes up for the relative displacement of the two components, The service life of non electric ball valves is generally about two to three years. At present, the boilers are all non electric ball valves. Circulating fluidized boilers are equipped with non electric ball valves at the connections between furnace outlet and cyclone separator population, cyclone separator outlet, cyclone separator outlet flue and tail shaft flue inlet, cyclone separator leg and return valve inlet, return valve outlet and return valve diagonal leg, etc. The number of non electric ball valves used varies according to the boiler capacity.
During the field installation of non electric ball valve, because the non electric ball valve has poor rigidity, the fixing parts of the non electric ball valve are not allowed to be removed during installation. They should be removed after the installation and before the trial run of individual parts. During hoisting, the non electric ball valve shall be hoisted in place with the installed parts in sequence. It is not allowed to hoist the non electric ball valve after the equipment in front of and behind the non electric ball valve is put in place, which will be too small for hoisting due to the reserved position. When the steel wire rope is used for binding and hoisting, it is important to wrap the steel wire rope with a valve or a thin sheet of iron to prevent the burrs of the steel wire rope from puncturing the skin of the non electric ball valve. A T-shaped lifting lug can also be temporarily installed on the non electric ball valve. This method can not only ensure the symmetry of the lifting, but also not damage the skin of the non electric ball valve. It is recommended.