Recently, Dongguan City, Guangdong Province, announced the embodiment of combustion facilities out of the transformation of coal-fired shell tube boiler suppliers. Continued efforts to implement air pollution control operations, blue sky to win the battle to raise the overall urban air quality, promote the construction of beautiful Dongguan.
Program execution object: the end of 2018 or for the gas central heating has been completed and all coal-fired boilers, furnaces, stove and other combustion facilities within the region.
Remediation program goal: to complete the gas before the end of 2018 has been for central heating or combustion facilities have been built out of regional coal-fired boilers and other renovation work. among them,
1, 2018 May 31, the gas supply has been built up, or central heating coal-fired boilers and other combustion facilities within the region, incorporating the first period regulation, must be completed before the phase-out renovation work in October 2018 31
2, June 2018 period from 1 July to 31 December 2018 for gas central heating area is built up or coal-fired boilers and other combustion facilities within the scope of the regulation into the second period, to be completed by 31 December 2018 out of the transformation.
Program remediation requirements:
1, the boiler must get out of the transformation of the city of Quality and Technical Supervision issued by the migration, retirement, cancellation of certificate or change a new boiler fuel use permit after; furnace, stove eliminated after the transformation of environmental protection must apply the change.
2, central heating is completed, it must use natural gas, liquefied petroleum gas, electricity and other clean energy combustion facilities outside the area out of coal-fired boilers, etc. after the transformation continued use.
3, central heating boilers planning area must use the central heating (gas) after the completion of the heating zone, will not have the heating conditions can use natural gas, liquefied petroleum gas, electricity and other clean energy as a transition.
4, into the "scattered pollution", high pollution and high emissions from industrial boilers and enterprise-wide to be eliminated.
5, for failure to complete boiler or eliminated within the rectification period, the Municipal Environmental Protection Bureau in accordance with the requirements of relevant laws and regulations and strict enforcement of its Municipal Quality Supervision Bureau will be canceled.
Condensing shell tube boiler suppliers must immediately solve the problems facing the current problems faced by condensing boilers must be addressed: 1, condensing boilers do not adapt to some of the high-temperature systems, suitable for low-temperature radiant floor heating. 2, condensing boilers require specially designed temperature control system and debugging equipment. 3, the condensed water generally has a slightly acidic, corrosion resistance is required ferritic stainless steel, austenitic stainless steel, aluminum and the like; 4, annual operating time equivalent assessment of investment and recovery period; 5, the condensed water and recycling emissions. 6, power can not be too small, there will backfire, causing an explosion, corrosive wall. (Recommended to choose the power of 35 kilowatts and above)
Henan burner safety controls in claim 1 gas shell tube boiler supplier, gas boiler burner pre Henan Henan hair gas boiler before ignition burner, there must be a period of pre-blowing, the furnace and the flue gas blow-off I or dilution. Because the gas inevitably leave more than work within the furnace burner, if not pre-ignition and hair, there is the risk of explosion. I have to blow off a clean gas or dilution gas concentration does not ensure the explosion limits. Pre-blowing time of the furnace structure and the amount of hair is generally about 15 to 60 seconds is provided. 2, Henan gas boiler combustion engine auto-ignition combustion spark-ignition engine should be adopted, to facilitate automatic control. Available high-voltage ignition transformer arc ignition, which required energy output: voltage ≥3.5KV, current ≥15mA, the ignition time is generally: 2 to 5 seconds. 3, Henan gas boiler burner combustion state monitoring Henan gas boiler burner combustion state must be dynamic monitoring, once the flame detector flame sensed signal must be fed to the burner in a very short period of time, then the burner into the protected state , and cut off the gas supply. To the normal flame detectors sensing flame signal, neither sensitive nor slow. Because sensitive, Henan gas boiler burner combustion state if volatility prone to malfunction and slow, feedback flame signal lag is not conducive to safe operation. General requirements for the response time of a signal sent from the flame to flameout flame detector does not exceed 0.2 seconds. 4, when the gas boiler burner Henan misfiring burner ignition protection, into a gas, combustion gas ignition. Ignition operation request occurs before the gas passed into first ignition temperature field is formed, to facilitate ignition and combustion. If the misfire, flame detector can not sense the flame signal, burner protection status. Protection state from the ignition time to be appropriate, neither too short nor too long. If it is too short, a stable flame is formed too late; too long, causing a large amount of gas into the furnace when the misfire. General requirements in 2-3 seconds into a gas, flame burner flame detector signal sensed be determined, not the fire protection state, ignition combustion is maintained. 5, Henan gas boiler burner flame protection Henan gas boiler burner in the combustion process, if unexpected flameout, burner into the protected status. Since the furnace is hot, the gas enters prone to knocking, it should be a very short time into the protected state, cut off the gas supply. From the burner to the flameout into protected state, the response time of the process requires less than one second.
Gas hot water shell tube boiler supplier fault repair method: unavoidable, malfunction or human error occurs boiler own reasons gas hot water boiler at runtime. After our failure to timely treatment, to avoid causing more damage. Fast boiler summed up after four troubleshooting methods for shutdown, check both, for your reference. 1, when the shutdown may not stop the pump immediately. Boiler water temperature must be lower than the pump can be stopped when the 50 ℃; the same time to turn off the water supply valves and heat supply network backwater valve and release to inspect and repair the boiler water. 1, before entering the boiler, the water must be emptied of all its boiler, sewage outfall fully open. Manhole on the drum, hand holes on the header to be open, so that air convection after a period of time in order to enter the inner workings.
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