Weekly maintenance items which are mainly oil-fired boilers in order to protect the security of the oil-fired boiler conducted its weekly examination is indispensable weekly to check the project are nine. 1, low level shutdown, shutdown test to be performed, according to the control cabinet side panel button, or should be able to simulate the shutdown by the sewage water, low water levels to check .2 shutdown, the valve manual opening Test , .3 to quickly reset, the burner control system and the electric eye to be examined, electric eye photocell taken, should the inner shutdown, and .4 electric eye cleaning, or replacement of the valve packing for filling, eliminate leaking. 5, around the fastening bolt, in particular a gas piping system, if necessary, to leak .6 month to clean the oil filter, the oil passage decontamination boiler fuel, gas pipe line filter .7 every six months to maintain. verification gauge tube and cleaning table .8, maintenance level electrodes, remove, .9 with fine sandpaper, cleaning the flue, generally based on the exhaust gas temperature needs to be cleaned to determine whether, under normal circumstances, exhaust gas temperature at the outlet does not exceed the boiler, measuring flue entrance) represents a too high fouling increase, reduce boiler efficiency, it must be cleaned, especially fuel boiler, to be more frequent cleaning. on the one hand, to the economy consider, on the other hand is also out of consideration (soot on safety thermal conductivity After partially burned prone). When replacing asbestos cleaning pad to the wrong port lap method (anti-smoke Ran), graphite coating, not lubricated .4) boiler repair or inspection, to check manhole, first hole, hand hole nuts can not be loosened, to check the motor rotation (see the end from the fan, turn counterclockwise). oil-fired boiler once per year check valve. conduct a comprehensive overhaul of the boiler serviced once.
Fang fast open class formal lecture: products, services both hands April 18, Fang fast open class smooth commencement, partners from across the country converge in the exchange of learning party headquarters R & D building fast training room, professional trainers to share a boiler features, installation and operation precautions, commissioning maintenance process, rapid fault verification, and troubleshooting tips, and other professional knowledge, students listen carefully, positive answer questions, and the atmosphere is very active.
Measures to improve the thermal efficiency of the fuel gas-fired boiler wns type of chemical oil-fired boiler which is incomplete combustion heat loss and mechanical incomplete combustion heat loss. Because almost no ash after combustion of the gas boiler, solid and liquid fuels without mechanical incomplete combustion, there is no need to consider the mechanical incomplete combustion of the gas boiler heat loss. In all heat losses, heat losses have tremendous proportions, when the high thermal efficiency of boilers, heat losses so the total loss of the main heat losses of fuel gas-fired boiler flue gas heat loss is the exhaust gas temperature and For air excess factor. When the exhaust gas temperature decreases, high thermal efficiency can be obtained, for example, a conventional three-pass steam boiler, furnace used in the past straight and smooth smoke tube, must increase the heating surface is arranged to make the exhaust gas to an acceptable degree, the theoretical discharge around the smoke heat loss. Potshell causing significantly increased diameter, wall thickness increased, greatly increased metal consumption, thus further reducing the exhaust gas temperature should be greatly restricted. From the aspect of heat transfer is not only now consider only the heated area, the use of new technology enables heat transfer performance significantly increased, the difference between the heat transfer overcomes the disadvantages of the past performance of the boiler, so that the exhaust gas temperature decreases, the structure is more compact. Center back boiler combustion boiler is preferably small foreign structure, although the two-pass boiler, the heated area is small, but the use of the turbulator charming, the purpose of enhancing the turbulence of the flue gas, disrupt laminar flow boundary wall, reducing the thermal resistance, increasing the heat transfer coefficient, a smaller heating area to achieve the same high thermal efficiency. Lower exhaust gas temperature limit in theory, the exhaust gas temperature can be reduced to very low or even close to the ambient temperature, for maximum thermal efficiency. However, in practice, due to the reduction of the exhaust gas temperature, low temperature corrosion will cause, therefore, the exhaust gas temperature can drop too low, in order to ensure that the wall temperature is higher than the main boiler heating surface flue gas dew point temperature. Therefore, low-temperature corrosion has become a major obstacle to reduce exhaust gas temperature and improve the thermal efficiency of the boiler. Tail auxiliary heating surface increases, further reducing the exhaust gas temperature, fuel gas wns improve thermal efficiency of the boiler as the oil, gas fuel burn easily wns type gas boiler air preheater generally not disposed. The economizer means is a common energy, which can be recycled flue gas was able to effectively reduce exhaust gas temperature. Separation type condensing gas boiler is out of the main boiler heating surface, the installation of the condensing heat exchanger. In one aspect of the flue gas absorption can significantly reduce the smoke temperature, reducing heat losses, on the one hand the absorption of part of the potential condensing water vapor released, increasing the effective use of heat of the fuel. Ash cleaning, to ensure that the heating surface of the scale wns boiler thermal efficiency of the boiler, the presence of soot fouling and heat transfer resistance increases, reducing the heat transfer effect. The thermal conductivity of the scale and soot is almost of the same order of magnitude, with the increase in scale, soot, the exhaust gas temperature rapidly increases, the thermal efficiency is significantly decreased. So, keep the boiler heating surface inside and outside clean, efficient heat transfer, thermal efficiency and to ensure the safe and economic operation of boilers, boiler fuel gas-fired boiler ash cleaning is required.
9 major technical characteristics of the gas 1t hot water boiler for sale nepal you know? 1, according to atmospheric boiler design, boiler in a non-pressure state, there is no safety hazard. 2, the use of advanced multi-layer insulation centrifugal glass wool, steel for packaging famous white color, heat loss, anti-rust appearance 3, burner configuration imported brands, high degree of automation, automatic purge controller according to the instruction, the electronic auto-ignition, automatic combustion (gas) automatically adjusting the ratio of wind oil, security and stability performance, good combustion. And there are flameout protection device, ensure safe operation. 4, the computer controller hot water boiler, all the functions are stored on a magic smart chip, a key to power boilers, automatic timing, temperature operation, the user can set the start, shutdown time, after setting, without special duty, save time, and effort. 5, the inner fire tube inserted spoiler retardant, smoke slow speed, to strengthen the heat exchanger, the temperature of the flue gas discharged from a low smoke chamber, reducing heat loss and save fuel. 6, large font display temperature, easy to grasp and boiler operating conditions of the system, the water temperature can be freely set from 10 ℃ to 90 ℃, automatic boiler or heating system to provide users with life, bath with hot water. 7, the control system in accordance with the temperature control of boiler water circulation pump start and stop, boiler water circulating pump starts when the water reaches an upper limit temperature, lower than the hot water circulation pump stops when the water temperature lower limit. 8, horizontal fuel gas hot water boiler three return all wet back structure, using a large furnace, rough smoke tube design, increased furnace radiation heat absorption, the effective energy saving. Using threaded pipe and waveform furnace, greatly enhanced heat transfer effect, greatly saving fuel consumption. 9, while the machine is equipped with thermal protection (ultrahigh temperature furnace, the burner is automatically stopped and an alarm buzzer, the second over protection (the boiler shell temperature exceeds 105 deg.] C, the secondary circuit is automatically cut off), the lack of anti-dry protection of water (when water is lower than the low water level of the furnace, the boiler is stopped and an alarm beep), a boiler leakage protection (the control system detects electrical leakage, short circuit, automatically cut off the power).
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