about departments in boiler manufacturing
Gas about departments in boiler manufacturing chimney building requirements
Minimum gas boiler chimney of not less than 8 meters, the height of the chimney should affect specific departments in accordance with approved environmental assessment documents OK. When there is a building 200 meters radius around the new boiler room chimney, chimney building should be higher than the maximum temperature of more than 3 meters.
Cause damage specific analysis WNS steam about departments in boiler manufacturing 1, a steam boiler WNS Reasons for lack of water subsidence area, i.e. corridor above the flue gas and a convection tube on the bottom of the drum is always in a high temperature superheated state, the sheet-like portion pearlite-temperature regions of the material will globular pearlite gradually change, phase change results in accelerated creep rate, and decrease the rupture strength, severe over-temperature regions of the material is overheated, the grains of austenite and rapid up, tensile strength abruptly decreases, the inner drum steam pressure causes plastic deformation of the film occurs region, gradually collapse. Partially collapsed scale is iron in steel at an elevated temperature with an oxidizing medium synthesized FeO. Outermost layer of oxide is Fe2O3, is a central Fe3O4, and a metal oxide layer at the junction FeO. Decarburized layer is a high temperature steel decarbonization formation. 2, the causes of boiler tube WNS convection tube connecting the steam drum in the form of a plug-side welding, force is weakest region. Length superheat temperature continues to rise so that the wall strength of the material resulting in a continuous decline. Is generally considered to be higher than 200 ℃ steel significantly reduced elastic modulus exceeds 300 ℃ steel yield strength starts to drop. When the temperature of the steel reaches 350 deg.] C or higher, decrease in yield strength at room temperature to yield the desired strength of 2/3 or less, the maximum temperature of the steel 20 450 ℃. When approaching Griddle boiler, the convection wall temperature far exceeding its maximum temperature, the pressure pot under the action of convection and Tube yielding occurs, and because the hoop stress axial stress is 1/2, the spout in the circumferential It is pulled into an oval shape. Finally, longitudinal cracks take over the angle generated between weak parts in the region of the weld structure and apertures along the bridge. The cracks in the tubes and pipes leak and cause a lot of soda unusual noise, which was discovered by the stove staff.
At the end of 2017, China Guodian is located in Jiangxi Province Wanan Hydropower Plant After evaluating the situation, some of the steam about departments in boiler manufacturing used to purchase much-needed daily work. Sales Manager fast boiler combined with the actual situation of the power plant for its recommendation 2 0.5 tons of electrically heated steam boilers.
Application examples steam about departments in boiler manufacturing and steam boiler valves of the type of boiler, we understand it's on, the following will continue to be, its main contents, it is to answer the question, which specifically is: both sides of the coal-fired steam boilers than the middle of a large fire, what are the reasons? How steam boiler for hot water heating? And, in the steam boiler, the type commonly used in valve What? Below that, one by one specific answer it. 1. large coal-fired steam boiler fire on both sides than the middle, what are the reasons? If the problem occurs in coal-fired steam boiler, then the specific reasons are as follows: One reason: after the boiler coal seam, this time should be adjusted appropriately. Two reasons: the following grate boiler silos, there was congestion and other issues. 2. How steam boiler for hot water heating? This, then is transformed into the system involves specific practices thereof, for: the use of steam generated by steam boilers, to heat water in a heat exchanger. Then, the heat circulation pump, the hot water flows generated through the duct, for heating thereby. 3. In a steam boiler, the type commonly used in valve What? In the steam boiler, which is commonly used in the valve, the main valve is turned off, the ball valve and drain valve. Further, for the boiler feed water system also has some pipeline valve, such as safety valves. As for the valve of the emptying valve, not how to use. For steam boiler, it can be said above all their knowledge in the system, so to all of us, is the need to know and a firm grasp of. Because the only way we can gain from and progress, and at the same time, so apply their knowledge, so that should reflect the knowledge of its valuable.