Check the work before the start fuel gas-fired boiler in order to protect the safe operation of the gas boiler, improve operational efficiency boiler, make sure to check the work before the boiler starts, every detail can not be ignored. 1, check the safety accessories, thermal instrumentation, electrical instrument should be intact; 2, check the connections, whether the water leakage and the furnace body line; 3, check the waste line, the water line, return line should be smooth; 4 , should check the line voltage is 380V, the fluctuation should be within ± 5%; 5, oil-fired boiler and a filter pump check whether normal oil, gas boiler check the gas pressure is normal, not too high or too low, the oil supply opening valves; 6, check whether the pump Sheung Shui, or opening the purge valve, until the Sheung Shui so far. Water Supply System opens each valve (including the water pump and water valve before and after the boiler); 7, check level gauge, the water level should be in the normal position, to prevent false water level, if the water can be manually Sheung; 8, check the pressure conduit the valve must be opened, the wind deflector must all flue opening; 9, each knob inspection control cabinet are in their normal position; 10, a check valve should be industrial oil and 2 ton steam boiler in a closed state, the hot water boiler circulating pump valves should be closed state; 11, check water softening equipment is operating correctly, create a variety of indicators of soft water meets national standards. Carefully do the above inspection, the basic conditions for the fuel gas boiler safe and economic operation.
Boiler installation of "blast doors," What is the role now on the market most of the boilers to gas, oil, biomass, electricity as the main fuel, coal-fired boilers because of its harmful pollution levels gradually been changed or replaced. In general, no boiler explosion during normal operation, but if it is due to the improper operation of the ignition or operation, it may cause the furnace or tail or secondary combustion flue explosion, resulting in serious danger of impact. In this case the role of "explosion vent" is manifested when the furnace or flue trace knocking occurs, the pressure within the furnace is gradually increased, when a certain value is higher than the pressure relief device can turn on itself through the explosion vent to avoid the risk expansion to ensure the overall safety of boiler and furnace wall, more importantly, it is to protect the safety of the boiler operator. Currently there are blasting boiler membrane and two kinds of swing-proof door. Swing-proof doors are mostly placed in the furnace wall of the combustion chamber. Their installation position can be divided into vertical and tilting, by the door frame, the door and the hinge member and the like components. The door frame and multi-cast iron round or square, the width of their mutual contact surface generally is 3 ~ 5mm, and to ensure seamless tight. The door is coated with a heat-resistant concrete, which limit the pressure according to a desired thickness value has been calculated or determined experimentally. When the gas in the furnace or flue explosion, the door is automatically turned about the shaft relief, and then shuts itself down. Sealing pressure of the vent door from the inclination angle (usually not more than 30 °) or the downward pressure created by the weight of a weight is obtained. Most membrane blasting explosion vent means on the flue, and a clamping device consisting of explosive membrane. Bursting disc is typically made of a thin metal plate of asbestos, aluminum and stainless steel. When an explosion occurs in the furnace or flue gas generated shock wave pressure to bursting membrane damage, play the role of relief, once the explosion vent membrane after blasting effect, it will not reset itself, the clamping device must be open blasting repositioned membrane. Note 1, the position of general device explosion-proof door on the wall or on top of a industrial oil and 2 ton steam boiler furnace furnace exit side of the furnace flue fuel gas. 2, explosion-proof doors should be installed in place without the threat of operator safety, and a pressure relief guide tube, it shall not be stored near inflammable and explosive materials, highly preferably not less than 2 meters. 3, activity blast doors require regular manual test to rust dead.
The party hot water boiler output fast enough to provide high efficiency, give us save a lot of fuel costs, and exhaust gas discharged tested in full compliance with environmental regulations on emissions of air pollutants in Henan Province. Fast boiler responsible attitude also left us with a deep impression, overhaul maintenance problems for a number of aspects of boiler operation and post, sent a very professional technical staff and our butt, fireman guide our people, for the quick sale of party, we are also very satisfied. --customer feedback
Some knowledge boiler Introduction: boiler is an energy conversion device, the energy input to the boiler chemical energy, electrical energy, a boiler with a steam output of the fuel in the constant heat, high temperature water or organic heat carrier. Today introduced are several little knowledge about the boiler. 1, a way to improve the efficiency of the boiler A which:? ⑴ low heat losses: prevent heating surface fouling and coking, the rational use of the burner, controls the blower inlet air temperature, water temperature of attention to the impact, into the furnace to avoid excessive wind note impact milling system operation; ⑵ mechanical incomplete combustion to reduce heat loss: rationally adjust the fineness of pulverized coal, the excess air ratio control of appropriate, attention combustion adjustment; ⑶ quality assurance fired boilers; ⑷ reduce soda losses: guaranteed boiler quality water supply, installation and maintenance to improve the quality of the steam separator means, to maintain the operation of the boiler load, the water level, steam pressure and other parameters of stability, so that the boiler water separation apparatus operating under normal conditions; ⑸ index management adhere to the small boiler. ? What are the reasons boiler fire answer: ⑴ low boiler load, low temperature furnace, combustion temperature, combustion oil investment is not timely; ⑵ poor coal quality, low volatile matter, ash is too large; ⑶ air volume to adjust properly, once too high wind speed, wind powder imbalance, the excess air ratio is too large; ⑷ excessive negative pressure maintaining furnace; ⑸ bunker powder level is too low or fallen powder to the powder to make the powder unevenness; ⑸ large depression coke furnace, disturbances in the furnace is too large; ⑹ ash, coke playing time is too long, especially large caused by cold air leakage into the furnace temperature drops to a low load; ⑺ blast furnace tube, a large number of soft drinks into the furnace; ⑻ fire protection action; ⑼ device malfunction, such as sending, fan, tripping of mill, Auxiliary disappeared.
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