Hot water boiler which is not equipped with no impact can cause demineralizer 1, the waste fuel boiler fouling occurs, resulting in poor heat transfer performance of heating surface, so that heat generated by the combustion of the fuel can not be timely delivered to the boiler water, but a large amount of heat is smoke away, resulting in exhaust gas temperature is too high, if the exhaust gas loss increases the thermal efficiency of the boiler will be reduced. In order to maintain the nominal parameters of the boiler, fuel must be increased, thereby wasting fuel. About 1 millimeter scale waste fuel ten percent. 2, the heat receiving surface is damaged due to deterioration of the heat transfer performance, fuel combustion heat is not quickly transmitted to the boiler water, resulting in the furnace and the flue gas temperature. Thus, the temperature difference on both sides of the heating surface increases, the metal wall temperature, a decrease in strength. Under pressure pot, bags and even blasting will occur. 3. Reduce heat boiler output due to the deterioration of the performance of boilers, need to consume more fuel to reach the nominal rate of evaporation. However, with the increase in the scale thickness, the volume of the furnace becomes large, the fuel consumption is limited. Therefore, it is possible to reduce the output of the boiler. 4, the corrosion damage to the metal: oxygen in the water, acid, base materials will corrode the metal surface of the boiler, it is thinned, recess or perforation, thus reducing the power of the boiler, seriously affect the safe operation of the boiler. 5, in addition to improper operation Priming outside, when the boiler water contains more sodium chloride, sodium phosphate, and silicides oil, boiling or evaporation process boiler water, boiler water occurs when soap and organic base when Teng because soda will produce compost. Foam liquid surface, formed soda pool. No softening, easily scalable. Due to the continuous evaporation steam, boiler of calcium, magnesium, high impurity concentration is 30-50 times that of natural water, fouling rate beyond our imagination, only six months to a year, from 1-2 mm.
Five gas szl series fired hot water boiler system consisting of a profile, the control system: microcomputer controller for hot water boiler configuration, large-screen full Chinese LCD screen with bright backlight, day or night, the boiler operating state is clearly visible. Display complete: circulating pump, the operation of the burner, the boiler water temperature, water level, the current time, alarm records, ranging boiler operating state; easy setup: the boiler power, the operator can freely enter key 6 when operating parameters for the standby state (set) into the operating state (power on), the state out of operation (stop), the random standby state is set; functional: arbitrarily set the current time, alarm temperature, the maximum temperature of water, The lower limit of water temperature, the temperature of the circulation pump is turned on, the circulation pump shutdown temperature, the boiler switch time (divided into four time periods) and other operating parameters. The operator usually just press the start key to boot, press the stop button to stop, very simple. Second, the combustion system: imported burner, automatic programmed control, automatic purge blower, electronic auto-ignition, spontaneous combustion and gas, (air) to automatically adjust the proportion of oil wind, good atomization, combustion, energy saving, It has flameout protection device to ensure safe combustion. Under normal circumstances, the combustor output temperature of the boiler with the combustion flame length is automatically adjusted, the outlet temperature of the boiler reaches the set value, the burner combustion is automatically stopped, when the temperature is below the set value, the burner is automatically started. When the abnormal phenomenon of the fuel, air intake, fault lights, the output sequencer will immediately stop the fuel, burner shut down automatically. Third, the boiler: boiler structure according to the design pressure, provided through the top of the large pores, the boiler operates at atmospheric pressure, away from the danger of explosion; boiler furnace using computer simulation to optimize the design, the size of the boiler is fully optimized, so that coordination aesthetic form . Vertical CLHS mounted boiler combustion at the burner, the fuel is combusted within a slight positive pressure furnace, the flue gas temperature in the furnace radiation heat transfer, convective heat transfer and then enter the pyrotechnics, smoke box is discharged through the last. Smoke tube baffle is inserted, the smoke evacuation slow speed, heat strengthening, fuel combustion furnace to ensure the greatest degree of heat generated water, greatly improve the thermal efficiency of the boiler; CWNS horizontal boiler with full wet back three return structure, the flue gas flow length, reduced exhaust gas temperature, the whole corrugated furnace provided, so that the flame produced a strong turbulence to improve the heat transfer coefficient strength, and effectively prevent the metal due to thermal expansion and contraction result in reduced equipment life; large-diameter cigarette tube and macropores bridge the gap, the boiler at equal time scale coating thin and easy to clean. Fourth, multiple protection: boiler has multiple security: the drain leakage protection that is automatically cut off power; i.e. overheat protection boiler water temperature reaches ultrahigh temperature alarm, automatic stop and alarm the burner; i.e., protection of the secondary superheater boiler housing temperature exceeds 105 ℃ when, automatically cut off the secondary circuit, the boiler stopped working; anti-dry protection water level electrode bar that is well-real-time monitoring water level, for other reasons boiler water level reached below the water level is very low, the boiler stops working, to prevent the occurrence of dangerous dry. Five: Packing Insulation: white color board packaging, nice, closed Haonai corrosion, mechatronics, small footprint, and easy to use. Glass wool insulation for whole body type, light weight, good thermal insulation effect, and less heat loss.
Dongying City, Shandong Province in response to low-nitrogen coal-fired boilers, industrial waste heat recycling and other environmental policies, combined with local conditions, Dali urban and rural areas to promote clean heating projects, and achieved remarkable results. As of mid-October this year, Dongying City clean heating rate of more than 72%.
Recently, Dongying Municipal Urban Management Bureau to the outside world, in order to further promote the urban and rural clean heating, it has already shut down 10 coal-fired boilers environmental non-compliance of a total of 155MW.
After shutting down 10 coal-fired boilers environmental non-compliance, Dongying City high environmental standards were established in a total of four 58MW gas-fired boiler and a total of four 70MW coal-water slurry boiler through a series of energy-saving treatment, flue gas emissions much higher than the index of new environmentally friendly ultra-low emission requirements.
Meanwhile, Dongying City, the original heating effect is also unsatisfactory 4.33 million square meters of heating regions to establish a uniform heating systems, and the use of standards to ensure clean heat source; higher operating costs for the original 2.17 million square meters of heating area heat source replacement process, both to ensure good heating effect but also saves a lot of money.
According to statistics, this year the city of Dongying city plans to add a total area of clean warm 8.1138 million square meters, down to the next new clean heating in rural areas 45000.
Recently, Dongying City issued a "Dongying City 2018-- 2020 coal consumption reduction alternative work" (the "Program"), after the completion of the city's 10 steam tons / hour and small coal-fired boilers zero and start steaming for 35 out of work t / h coal-fired boilers and, as of 2020, out of 35 steam tons / hour and coal-fired boilers.
The main factors affecting small type gas steam boiler steam boiler thermal stability of gas ignition is not difficult to establish a stable small fire signal, the root cause is a small fire detectors can not detect normal to the fire. Gas-fired steam boiler burner underlying mode, two-pass configuration, the fuel combustion, the boiler operation is stable and take up less space, while the spoiler is inserted smoke tube, smoke slow speed, increase heat transfer, a high thermal efficiency, reducing user fees biomass boilers categories: biomass boilers horizontal, vertical biomass boilers. Biomass gas thermal oil heaters, biomass steam boiler, biomass szl series fired hot water boiler, biomass oil furnace. Function gas boiler the ignition system that ignites the mixture of air and fuel, its main components are: the ignition transformer, the ignition electrode, a high voltage electrical cable fire. A more secure electronic ignition system called ignition pulse, is widely used Zhuoyi energy saving gas boiler manufacturers. Which facilitate saving, can simply press a finger, and safe, does not occur due to unexpected accidents occur flame, once the stall state occurs, the control system can close the solenoid valve, off the gas passage. Small fire detectors use the ionization fire detection, and requires effective contact area of the flame, the flame stability and proper size, the gas pressure must be controlled within a very strict range. If the ignition gas pressure is too high, too long a small fire flame is moved beyond the detection range of the small fire detection probe, the system will not be mistaken for a small fire; if the gas pressure is too small, the gas will be firing too small and the boiler the blast very, very easy to blow out the flame, the ignition is not possible. Also, fire gases found a small pressure regulator valve regulating performance is not good, fine adjustment can not be achieved. Stability is also related to a small fire and the ratio of the size of the boiler furnace pressure boiler feed valve. The damper is too large or too small can affect the stability of the flame is ignited and the flame, furnace pressure will lead to extinguish the flame. In order to ensure the accuracy of fire detection, fire detection, we can adjust the small depth of insertion of the probe, the position of the fire detection probe in the correct position, in order to more effectively detect small fires flame.
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