Why there will be gas-fired boiler drum wall temperature difference between the upper and lower walls of the upper and lower gas boiler drum boiler temperature difference will cause some damage to the wall of the drum by the compressive stress, tensile stress at the wall by the stress reaches a certain extent gas boiler drum damage occurs even crack. Why would the temperature difference between such a phenomenon? That is because the initial ignition gas boiler drum upper and lower walls will have a certain degree of temperature difference, it is because the initial heating gas boiler, a low metal vapor drum wall temperature, the wall surface of the steam condensation occurs on heat drum, the drum wall in contact with water in contact with the water also occur on the lower wall surface of the heat, but due to the exothermic coefficient of water vapor condensation than the larger, upper drum wall endotherm, therefore the gas temperature of the boiler drum arm is higher than that under the wall faster. This requires us to run gas boiler run time to pay attention to some issues, so as to avoid damage to the gas boiler, ensure the normal operation of the gas boiler.
Finally, He Jinping, vice governor visited our laboratory cleaning boilers, boiler shocked layout in the laboratory, the enterprise to acknowledge in-depth study of the safe operation of the boiler. Prior to departure, He Jinping, vice governor, said: "Your company is active in this research, visit the highest gold content of science and technology, value-added security strongest companies in the field of corporate research you safe operation of special equipment, has exceeded the government. the widespread perception boiler products. "
A diffusion combustion concept: it is a relatively simple combustion of the fuel and air are fed to the combustion chamber, while mixing combustion to produce a longer flame, and exhibits mostly red and yellow. Advantages: no premixing in advance, but the gas nozzle mouth interdiffusion, and then burned. Combustion is relatively simple, no tempering, and other undesirable phenomena from the flame, the flame burning more stable. Disadvantages: Due to a longer flame, and prone to incomplete combustion occurs, so resulting in additional carbon monoxide and hydrogen compounds, the fuel can not be fully utilized, the thermal efficiency of the boiler also decreases, the boiler is difficult to achieve emission standards. Second, the combustion of partially premixed combustion air yet, compared to the diffusion combustion, having a partially premixed combustion complete combustion, the flame is short, a large thermal strength advantage, but this may cause combustion tempering, from flame from the fire phenomenon and, under good control of the primary air prerequisite, can realize a flame does not leave a range, a stable flame area is not tempered, this region can be adjusted in the heat load ratio. Partially premixed combustion in gas appliance in the civil more widely. Third, refers to the premix combustion air and fuel required for full and accurate fuel previously mixed, and then fed to the burner for combustion. Which is characterized by a short flame length, adhesion to the burning surface, or even see the flame, also known as flameless combustion. Advantages: fuel combustion more fully, higher utilization, boiler thermal efficiency are increasing. Fang fast premix gas boiler thermal efficiency can reach 108% of the combustion efficiency. At the same time, fewer air pollutants discharged, in line with our air pollution emission standards implemented. Disadvantages: Due to the need for premixing fuel and air, fuel combustion stability will be relatively worse, measures need fireworks from the flame stability and to prevent tempering.
A correct steam boiler shutdown: 1, the steam boiler is not used to determine, fireman and support staff to coordinate Division, before proceeding shutdown operation. 2, to reduce fuel (coal), and then reducing the amount of wind, until after the load falls to zero, closing the main valve and stop the air blowing, the wind is stopped after 5 minutes. 3, the shutter closing the flue, each door seal, manholes. 4, the boiler flame, when the vapor pressure exceeds the working pressure, exhaust valves should be opened or add water to the boiler and the blowdown, but should not significantly cooled boiler. 5, boiler pressure is not reduced to zero, to maintain the normal water level, the operator may not leave their posts until the pressure to zero, then make sure all links are correct before they show proper steam boiler shutdown.
Jun 18, 2014 · There sure is a lot of water in those systems, and that 1.15 pick-up factor isn't going to be enough to take on all that extra water. And this is why boiler manufacturers are pushing primary-secondary pumping and boiler-bypass piping these days. Without one or the other, that new boiler you installed will probably never shut off.Online chat
Hot water boiler type STAR K Hot water solid fuel boiler.Firebox is made of sheet steel, thickness of 5 mm, other parts is made of sheet steel, thickness of 4mm.Doors are made of steel castings. Boiler is heat insulation, metal boiler plating. We are delivery accessories for cleaning.Hot water boilerOnline chat
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