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Thermal power generation boilers including boilers of various capacities and various gas turbine capacity, fuel main types of coal, natural gas, oil, biomass, like other gas. Use gangue, oil shale, petroleum coke, fuel, sludge and other coal-fired power boilers reference emission limits fired boilers performed.

Industrial boilers including industrial boilers, various types of fuel capacity mainly coal, gas, oil, biomass, and so on. Boilers using coal, coal water slurry, coal waste, semi-coke, petroleum coke, oil shale and other fuel fired boilers performed with reference to emission limits. Using alcohol fuel (e.g., methanol, ethanol, dimethyl ether, etc.) with reference to the boiler exhaust gas boiler limits performed. Oil and gas dual-fuel boiler in accordance with the type of execution are oil-fired boiler and gas boiler emission standards. Other types of fuel mixed fuel boilers by performing more stringent emission standards.

Industrial boiler scale remaining after pickling cleaning operation of boiler scale, and in particular the sulfate scale silicate scale even pickling method, it is difficult disposable washed. Residual scale much rougher than the surface of scale-free surface, a rough surface has a plurality of cavities, and the cavity was a stagnation region, where the scale easily concentrated, deposited, raw knot. Based on the above-mentioned negative factors, the boiler pickling, the handling of the residual scale is necessary. 2 2.1 descaling methods and principles sodium humate salt and so synergy, the purpose of removal of old scale during operation. 2.2 Principle dirt into CaC3 water residue. I play a dissolution of silicate. NaOH silicate scale is difficult to dissolve and react to produce soluble sodium silicate. The higher the temperature of the boiler water containing alkali solution, the above reaction is carried out more easily. An organic phosphonate of chelation and lattice distortion effect. Organic phosphonates and not only in aqueous solution Ca2-, Mg2- form a stable chelate compound, but also have been formed, and CaCO3 crystals phosphonic acid), since chelation Ca2-, so that CaCO3 scale layer many voids, reduce the interaction between the scale layer, the hard scale becomes debris in the pot of water to the boil, it played a role in the erosion and the dispersion, together with the waste water drain. The use of renewable organic polycarboxylate self-release effect and the descaling effect. Organic polycarboxylate heat transfer surface can form a film with such a film which is co-precipitated layer of scale grows to a certain extent will break, and the heat transfer surface away together with the scale, come off. Sodium humate by osmosis. Sodium humate has a strong penetration effect, can penetrate into the scale and the metal contact surface with calcium, magnesium metathesis reaction, the surface adhesion decreases old scale and metal fall off. Application Examples Example 3 a factory a KZL2-8 Horizontal package boilers, raw ground water, 10.Mg2 + hardness meter), although the water treatment equipment, due to poor water quality, combined with improper operation, junction raw scale, covering area of ​​more than 90%, the average thickness of 45mm, the thickest of 11mm. after pickling, whichever residual scale, through experiments, is determined sulfate scale. By its nature, the program uses the following: ⑶ epileptic), then cast added Na2C3, will increase the alkalinity boiler water to 18), an amount calculated as follows: G = the amount of V ° (D-D of the standard) MG-Na2C3 of , g; V- boiler water capacity, m3 (2t / h boiler by 4 meter) D required to achieve standard pan of water alkalinity, mmol / L (OH, D assay time of a pot of water alkalinity, mmol molar mass / L-NaC3 of persons Na2C3 after the above-described embodiment the dosage amount, than before dosing boiler water turbidity increases, first, because the agent itself increases the salt content, the second is the scale under the effect of the agent, gradually slag into water. over time, gradually reduce turbidity, running six months later, most of the remaining scale is removed a few off the bottom of the drum, into the soft dirt, water residue will easily become excluded. example two factory Taiwan KZL4-10 horizontal packaged boiler, no water quality testing prior to installation, commissioning a mistake softening equipment, water quality criteria is not met, resulting in the installation of new boilers three months after the operation, Wall Sheung scale portion is blocked, and the emergence of squib, replacing the 6, the remainder of the scale Of about 4mm, the individual parts 7 ~ 8mm. After pickling, the scale remaining large as replenishment of water in the furnace of the trona 3.5mmol / L, when the multi-alkalinity boiler was maintained at 15 ~ 20mmol / L or so ( OH, F COT), so there is no dosing Na2C3, adding only a HEDMP, HEMA and sodium humate, running four months, a significant reduction in the residual scale. problem most exposed parts of the metal to be noted that dosage .4 agent to remove residual main scale, must be strictly controlled boiler feed water or demineralized water hardness 0.03mmol / L or less (by Shi Ca2 ' "1Mg2 ten dollars), into the pot to prevent hardness scale and consumption of new raw junction agent. For this purpose, examples of a case of re-commissioning the softening equipment, examples of two direct replacement softening equipment, and analysis of operating personnel have been trained .5 conclusion after more residual scale boiler pickling, do not allow continuous pickling can be adopted pot-treatment method to solve.

Natural gas boiler can achieve fast side: 1, high thermal efficiency: Add condensing gas boiler technology for flue gas emissions were reabsorbed use, thermal efficiency can be as high as 108%, fuel combustion, for your company save an enormous input costs . 2, ultra-low nitrogen emissions: the premix, of FGR flue gas recirculation and other advanced technology, the harmful substances (such as nitrogen oxides) in the cradle strangled, NOx emissions as low as 18 mg / m meet our stringent air pollutant emission standards, can be used in Beijing, Shanghai and other urban centers. 3, remote monitoring cloud services platform: the fast side-specific cloud services platform, your boiler will be closely integrated with our system, if the warning, failure incidents occur, our monitoring staff will contact you immediately by phone or online to avoid greater losses for your business. 4, PLC intelligent operating system: PLC system is fast party independent research and design, and is installed on each boiler. With this system, you can more intuitive operation inside the boiler operation and observation, by prompting the button to complete the operation of the boiler, simple and straightforward. 5, boilers Modular: Modular co-operation means can control more than one boiler, according to their production in different seasons or your business, the flexibility to adjust the number of operating the boiler, to avoid waste of resources.

Electric british built packaged steam boiler heating process: Since the water temperature in the steam boiler power rising bubbles and an evaporator heating surface of the metal wall temperature began to rise at any time, need to pay attention to thermal expansion and the temperature of thermal stress due to thicker wall thickness of the bubbles the main problem in the electric steam boiler is heated during thermal stress. At the same time, but also consider the overall thermal expansion problems, especially for the electric heating surface of the steam boiler tubes, because the wall thickness, length of problems in the heating process is thermally integrated for expansion, but also noted that the thermal stress and prevent because of the neglect caused the failure. Generating steam in electric steam boiler and boost heating process, the temperature difference between the bubble there is a temperature difference along the thickness of the vertical wall and, when the temperature is higher than the outer wall temperature of the inner wall, the upper wall surface temperature is above the lower case, to prevent excessive thermal stress to the boiler slow step.

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