1. Run the water level changes and adjustments condensing gas boiler drum level condensing gas boiler why change? Causes changes in water level is balancing substance (to equilibrium water content and amount of evaporation) and the destruction of the working fluid status change. As to the amount of water greater than the amount of evaporation, the water level rises; evaporation to water is less than the amount of water decreased; equal to the water level remains unchanged evaporation. However, even if the material balance, if the refrigerant changes state, the water level will continue to change, such as the furnace heat release mutation or mutations external load, and a saturated vapor pressure changes with temperature, so that the specific volume and the volume of water vapor in the water and changes in the number of bubbles caused by water level changes have occurred. 2. How to adjust the water level in the gas condensing boiler? Adjust boiler normal operation of the boiler water level, drum water level to maintain stability, should do the following: (1) to control the water level, water level must be carefully monitored, in principle, subject to a water level, water level gauge with electrical contacts for the The main monitoring meter. To maintain the water level in place clear and accurate. If the water level gauge mica or no rocked slightly unclear, flush water level indicator, each periodic control level gauge accurately determine changes in boiler water level of the condensed gas. (2) at any time to monitor steam flow, water flow, pressure and water pressure drum major data found is not normal, immediately identify the reasons for timely processing. (3) If the water level more than ten 50mm, should adjust the door off a small water supply, reduce the amount of water, if it continues to rise to + 75 mm, should open the door turn on the water drainage accident to the normal water level, and investigate the cause. (4) condensing gas boiler normal operation, the water level below -50mm, it is timely to open a large door increases the amount of water to adjust the water supply, the water level back to normal as quickly as possible, and to identify the reasons for timely treatment. (5) lifting the load unit, to start and stop the pump, high pressure heater or splitting, boiler blowdown periodically to empty or exhaust steam safety valve operating and accident conditions, respond to changes that occur ahead of drum water level is adjusted.
Water tube and fire tube boilers are essentially the opposite in design. In a water tube boiler, water travels through tubes which are surrounded by the by-products of combustion, or flue gas. In a fire tube boiler, the flue gas travels through the tubes, which are surrounded by hot water. Fire tube boilers are typically designed with either three or four sets of tubes (three- or four-pass boilers). Every set of tubes that the flue gas travels through is considered a “pass”. Boilers designed for three-passes have the stack at the rear, and boilers designed for four-passes have the stack at the front. A boiler with more passes has a higher heat extraction rate and is more efficient then one with less passes.
Extend the life of the boiler maintenance shutdown (boiler) 1. Within the boiler water off after the shutdown, open for all internal inspection hole hand hole corroded, remove the pot shell and silt debris collection box. 2. Clear fouling heated surface to enhance heat transfer, reduce heat resistance. 3. Check hearth furnace wall, the repair of damaged insulation, air leaks to eliminate smoke leakage. 4. Check each boiler drain valve switch is flexible, the sealing situation is good. The wet boiler maintenance: After pot scale, rust and other cleared, by injection into the boiler supply pump is full softening, oxygen qualified demineralized water, and adding an alkaline solution, the oxygen with the metal surface of the pot water inert to the reaction, the metal from corrosion. Before dosing, and closing the relevant check valve to prevent leakage into the operating system alkaline solution, while preventing leakage of water into the pan operation of the system, so alkaline concentration.
Some time ago we learned that the Xinxiang City, Henan Province is located in order to further deepen the pollution gas boiler, reducing nitrogen oxide emissions, improving air quality, we launched a "campaign of Xinxiang City, pollution prevention three-year action plan implementation (2018-2020 Year) "(hereinafter referred to as" an embodiment "), as follows.
First, the implementation of the total coal consumption control
As of 2020, the city's coal consumption control at 13.04 million tons, the proportion of energy consumption control in less than 70%. Coal-fired power plants and strengthen the chemical industry, nonferrous metals, building materials and other key industries of coal consumption control, under the premise of protecting the power system security and stable operation of non-fossil energy generation within the city full consumptive, and actively absorb external calls.
Further promote high-pollution fuel combustion zone ban construction. Gradually expand Ⅲ fuels (coal and its products, including clean coal) combustion zone ban range, central heating and complete cleaning of coal bulk region designated as an alternative class Ⅲ high-pollution fuel combustion zone ban. Increase the combustion zone ban supervision, prohibition of bulk coal sales and hoarding, and severely punish violations of the ban management requirements combustion zone, the region has been completed to prevent bulk coal burning complex.
Second, comprehensive remediation coal-fired boilers
Adhere to the "source of governance, a total ban, focused, step forward" principle, and comprehensively promote the elimination of scattered coal-fired boiler (kiln) coal-fired furnaces and other industrial facilities, the renovation work. Before the end of December 2019, basically out of Xinxiang City, the administrative area of 35 steam tons / hour and coal-fired boilers, coal-fired boilers essential to retain, to achieve ultra-low emissions must be stabilized.
Third, actively develop renewable energy
Regions and the development of renewable energy, constantly optimize energy consumption structure, and gradually improve the urban proportion of clean energy use, and build a clean energy-based energy security system. By 2020, the proportion of non-fossil fuels in total energy consumption in the city of more than 7%.
Fourth, to enhance the level of natural gas utilization
Good job of marketing system storage capacity for natural gas. And strive to 2020, the proportion of total energy consumption of natural gas accounted for 10%. Strengthen joint cooperation with the West-East pipeline in northern branch and other existing, fully-use planning Sinopec Xinjiang coal gas "new Guangdong and Zhejiang," and so on through the pipeline from the city's strengths to enhance the capacity of natural gas reserves, counties 2020 (city), District of forming at least not less than three days of emergency reserve capacity average daily gas consumption to protect the administrative district, city gas companies and large users uninterruptible form of not less than 5% of its annual gas consumption of the emergency gas storage capacity.
Fifth, the effective promotion of clean heating
Continue to promote clean heating pilot city construction work. City and county built-up areas to development of central heating based, improvement and transformation of the heating pipe network, a substantial increase in the rate of central heating, the first to achieve clean heating rate of 100%.
Sixth, vigorously promote the construction of central heating
Industrial central heating full coverage. Accelerate the integration of industrial parks (industrial parks) existing heat points, to promote the heating pipe network construction, the gradual elimination of the industrial park (industrial parks) central heating blind spots. Existing types of industrial parks and industrial clusters should be implemented cogeneration or Central Heating, industrial enterprises into the central heating, decentralized heating phase out the industrial park to ensure the realization of "a zone a heat source."
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