Factors affecting boiler efficiency condensing paper mill which recently found our customers fast boilers, boiler efficiency condenser consultation paper mills affected by what factors? To solve this problem, our technical staff gives the answer. 1, paper mills correct operation of condensing boiler. Preset value is closely related to the operation and the parameters of quality of work and condensing boiler equipment, when the operator to adjust the parameters of condensing boiler plant does not meet the preset value of the environment, or different operating out of order, it may cause condensing boiler system cauldron. Lead to excessive condensation of water, low pressure or no abnormal temperature changes. Therefore, before condensing boiler and during use, the best professional guidance and strict rules. 2, paper mill maintenance and maintenance condensing boiler. To a certain extent, maintenance, and maintenance of the boiler condensate directly determine the lifetime and stability of the equipment. Condensate boiler has shut down most demanding requirements at any time, after a period of downtime can cut off the power. Regular and comprehensive clean-up dirt, clear line between abnormal dirt. Once a line is broken or loose parts, it is timely to take protective measures in accordance with the instructions in order to avoid large-scale post-accident. 3, the specific environmental parameters and paper mill equipment condensing boiler is a need for a reference. In the purchase of a long history of condensing boilers, we must first determine the various parameters of the interface of its own boiler system. Thermal energy value, diameter, area, and other space available, combined with the original energy system, and parameters determining the type condensing boiler, condensing boiler and to ensure the actual operating environment adaptation.

First, when the need for boiler pressure test? 1, the newly installed boiler when put into operation. 2, more than a year boiler outage and resume operation. 3, boiler, pressure member after significant repair or replacement, such as the number of water wall tubes in the replacement number of more than 50%, superheater, reheater, economizer other group member replacement, a significant repairs performed drum Time. 4, severe boiler overpressure 1.25 times the working pressure up to and above. 5, when a large heating surface area of ​​the boiler water after severe deformation. 6, according to operation, safety and reliability of equipment operation when there is doubt. Second, the method of pressure testing a boiler water pressure test should be carried out when the ambient temperature is higher than 5 ℃, antifreeze measures must be less than 5 ℃. 2, the water pressure test should be maintained above the ambient dew point temperature, to prevent surface condensation boilers, water seepage and the like will not occur closely confusion, difficulty increases inspection; but it should not cause high temperature to prevent vaporization (so difficult to find the leak) and excessive temperature stress, usually 20 ℃ ~ 70 ℃. 3, the water is full, pressure is gradually increased to 0.4MPa, namely a tight check, if necessary, be tightened once the flange, and hand Manhole cover bolt hole. 4, water pressure test, pressure should slow down, when the pressure rises to the pressure of work, should be suspended boost, check for leaks or anomalies, and then boosted to the test pressure for 20 minutes, if the pressure It did not decline, that is, down to the working pressure checked. 5, find any leaks should cook the recording, in order to reduce the time to repair the atmospheric pressure.

Industrial boilers and gas condensate natural gas hazard industrial boilers produce condensate water hazards 1, the corrosion of condensate water boiler heating surface of the main hazards to the natural gas industry is a corrosive effect on the boiler heating surface of the boiler. Condensate corrosion WNS rear of the boiler heating surface of the bottom of the tube focus, mainly iron oxide corrosion products. Condensate corrosion can cause intense side wall thinning, strength weakened. (1) condensation with the flue gas evolution corrosion, some CO2 is dissolved in the condensed water, CO2 generated in case of weak electrolyte H2O H2CO3, ionized hydrogen ions, so that a weak acid condensate, and another part of the nitrogen oxides and containing a very small amount of sulfur dioxide dissolved in the condensate, enhances the acidity of the condensate, the pH of the condensed water as in table 1 were lower than the position of the drum 4.3. iron hydrogen evolution corrosion can occur in the acidic solution, and the strong acid, the reaction The faster rate. (2) Since the oxygen etching gas during combustion boiler need to ensure a certain air ratio, combustion flue gas contains oxygen. When the steam condenses, some oxygen will be dissolved in the condensed water, causing corrosion of the metal heating surface of the oxygen. 2, when the cross-sectional area to reduce the flue gas flow type gas boiler industrial boilers operate at low load, the heated surface of the flue gas, the condensed water gathered in the smoke tube, the resulting corrosion products accumulate in the bottom of the tube, even clogging of the pipe part, thus reducing the flow area of ​​the flue gas, the flue gas resistance increases, and increase in power consumption of the blower. 3, the furnace temperature is lowered, damage to the burner within the examination of natural gas in industrial boilers, often find a certain amount of condensed water. We found condensate discharge tube boiler such severe congestion, resulting in condensed water in the lower furnace does not discharge, and refluxed for aggregation. When the boiler is started, the heat accumulated in the furnace absorbs the condensed water and evaporated fuel combustion, thereby reducing the furnace temperature. If the furnace condensate accumulated too much, and even dipped into the burner, causing damage to the burner. Suddenly turn off the boiler, the boiler does not start, because the burner too much condensation water immersion, affecting the safe operation of the boiler. 4. Effect of boiler condensate generated on the heat sealing material penetrates into the sealing material of the boiler insulation, the point of the arrow indicated gas tank gas boiler WNS industrial boilers. Sealing condensed water immersion insulation material for a long time, the insulation effect will be weakened or even physical damage, increased heat loss. Meanwhile, the condensed water will make the sealing material deformation aging, sealing capability weakened, leading to a certain amount of flue gas emissions, which not only be dangerous, can also cause a certain amount of heat loss.

March 26, 2018, fast Boiler Marketing Summit successfully held in Anyang, excellent strategic partner dealers across the country gathered in beautiful surroundings Huan Gulf Hotel venue center, witnessed ups and downs square almost 20 years, complicity future development plans.

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