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gas butterfly valve gas fired hot water boiler

Common butterfly valve fired hot water boiler Accident (c) hot water boilers common accidents in addition to accidents, explosions, that there is a tube rupture. So what causes hot water boiler tube rupture is what kind of solutions does the cause of the hot water boiler tube rupture:?? Quality (1) boiler water is poor, resulting in the accumulation of impurities in the boiler, severe corrosion and other problems attached boiler tubes, not a long time to clean up in time, lead to the phenomenon of burst pipes. Material selection (2) non-compliance boiler tubes and so lead to pipeline pressure less able to cause the occurrence of burst pipes phenomenon. (3) In addition, due to the boilers used for a long time, parts of aging, wear and other phenomena more serious, there will be burst pipes phenomenon. (4) When pulverized coal boiler, oil, gas hot work, operational errors can cause the collapse of the furnace walls and furnace tube bore explosion. Solution: (1) timely boiler attached to the wall of debris to clean up after the shutdown. (2) severe damage to the superheater, boiler shutdown immediately related operations hot water, and then timely maintenance. In short, boiler tube rupture is one of boiler accident hazards of large accidents, hot water boiler during operation, should be timely maintenance, to avoid unnecessary security risks.

Henan run several areas, including Henan gas boiler gas boiler operation includes several aspects: daily monitoring and adjustment operations; accident treatment; start and stop; optimal operation mode and technology improvements. When the normal operation of the boiler, the daily operation of the monitoring and adjustment of the operating accounts for the major part. "Stable" is the key, pressure, temperature, water level, negative pressure, milling parameters, etc., remain stable conditions is an important guarantee for safe and economic operation. Briefly, the steady working primarily by "balancing" the means to obtain, for example, outside the furnace combustion conditions and load balance, the pressure is stable; to balance the amount of water and evaporation, is stable water level; primer with the supply air volume the amount of negative pressure equilibrium is stable, according to Henan gas boiler operation adjustment purposes, and in accordance with the purpose of regulating the boiler operation, to take the necessary means of regulation. Daily adjustment of the key - "steam pressure." Among the major parameters of Henan gas boiler, main steam pressure to maintain stability is the key which only the steam pressure is stable, the remaining parameters to stabilize. Unstable steam pressure, steam temperature, the water level will also change, so first of all start from the pressure adjustment. Vapor pressure is divided into an outer and an inner interference disturbance, our plant, i.e. outside the external disturbance load generally little change, so change in vapor pressure are changed within the furnace i.e. interference caused by operating conditions, so holding furnace combustion conditions the stability is the stability of the vapor pressure. If the combustion conditions change, such as wind than powder, coal calorific value and other factors change, a pressure change occurs, requires us to be adjusted, thereby changing into a stable state of the combustion furnace transient state conditions.

2019, Shaanxi Province, continue to increase efforts to control and eliminate coal-fired facilities, recently issued a "coal for management action plan Guanzhong area", planned before the end of 2019, the completion of the Guanzhong area of ​​all 35 tons of steam coal-fired boilers (more than 20 tons of steam and the transformation has been completed with the exception of ultra-low emission) demolition of all or implementation of clean energy transformation. In accordance with the principle of gas will change, the implementation of clean coal prior to transformation Area off central heating station.

1, to promote the efficient and economical coal to electricity. Cities, counties, the district government to connect with the local power grid companies to develop the Rebuilding embodiment, each village and household investigation and electricity facilities, good co-ordination transformers, distribution lines, smart meters and other distribution facilities renovation work, comprehensively promote the upgrading of rural power grids to meet people's demand for electricity for heating. The end of December 2019, Guanzhong Plain, basically should be changed to make change, the mountains and strive to complete the transformation of the whole village contiguous 60%, the rest of the region before the end of 2020 to complete the transformation. It has completed the transformation to strengthen regional security and stability of power supply and electric heating facility security management. Encourage public bodies to give priority to use high efficiency air source heat pump, storage electric heating and other products.

2, and steadily push forward coal to gas. Gas will adhere to the reform, on the basis of strict implementation of the contract on the amount of resources, natural gas pipe network coverage area of ​​priority implementation of coal to gas. Accelerate the construction of infrastructure such as natural gas pipeline network, expanding coverage of natural gas. In accordance with the principle of special matter, to speed up the preparatory work for the pipe network, gas station facility construction land, planning permission and so on, to simplify examination and approval procedures, to speed up the examination and approval, and actively support the gas company to promote the project implementation plan. Encourage and support the network does not cover the better the basic conditions of township (town, street) using a skid mounted LNG and compressed natural gas. An annual increase of gas from coal to gas priority for rural residents and incorporated into the contract management to ensure stable gas heating. To ensure energy conservation, the indoor installed gas boiler energy efficiency of not less than level 2. According to Mopai base number, speed up the development of sub-annual indeed given village households from coal to gas embodiment, reasonably determine the 2019, 2020 annual scale coal to gas.

3, increase geothermal and other renewable energy heating efforts. Geothermal resources better urban plains of Xi'an, Xianyang City and other urban and rural interface, focusing on rural construction area of ​​more than 20,000 square meters of new residential, with technical and economic feasibility of using geothermal heating premise should be encouraged to have the condition the old district were geothermal heating transformation. Urban construction must be carried out as a heat source point in principle new waste incineration plant. Encourage and support the strength of the research institutes and enterprises to strengthen the solar thermal, biomass energy technology research and development, improve systems integration. Township (town, street) party and government institutions, enterprises and railways, roads and other auxiliary services take the lead in building a number of sites for renewable energy heating demonstration projects.

4, to promote the use of clean coal. Will not have the clean energy alternative conditions and mountainous areas will not have the coal to electricity, coal to gas to actively promote clean coal. In accordance with reasonable layout, standardized management requirements, improve the construction of clean coal distribution centers, to achieve full coverage of clean coal. Distribution center to establish and improve coal quality inspection and sales ledger system, in line with the sales of clean coal, "coal quality coal for civilian goods" (GB34169-2017) and "civil coal coal quality goods" (GB34170-2017) technical requirements, city , loose coal and coal county built-up areas and its surrounding area used to reach No. 1 product technical requirements, other areas prohibit the sale, use more than 1% sulfur, ash content higher than 16% of civil bulk coal, the information contained the bulk coal management online platform, to achieve dynamic monitoring information. Strengthen commercial coal sales, circulation of coal quality control, increase sampling efforts to achieve full coverage of monthly sampling to crack down on the use of inferior coal for sales behavior. Study and perfect the counties (cities, districts) financial subsidies to support clean coal policy, and actively promote the use of clean coal, to ensure that people warm winter.

5, continue to carry out comprehensive improvement of coal-fired boilers. Increase the small coal-fired boilers and furnaces tea, operating the stove, grain storage and drying equipment and other efforts to eliminate coal-fired facilities. Before the end of 2019, the Guanzhong area of ​​all 35 tons of steam coal-fired boilers (20 tons of steam and above with the exception of ultra-low emission renovation has been completed) all removed or implementation of clean energy transformation. In accordance with the principle of gas will change, the implementation of clean coal prior to transformation Area off central heating station.

Select the fuel gas-fired boiler when what issues should pay attention to it? With the National Energy Bureau of Statistics figures out show that China's coal reserves are decreasing year by year, has been unable to meet our daily consumption, then the traditional coal-fired boilers will be gradually out of the market, a new type of fuel gas-fired boiler will become the new main force, then we choose the fuel gas-fired boiler when what issues should pay attention to it? Xiao Bian gave you about the advantages of the river south fast fuel gas-fired boiler is reflected in What: Henan party soon, Ltd. manufactures compact gas-fired boiler fuel, boiler and ventilation, water supply, control and auxiliary equipment are provided on a chassis as possible for customers to free up more space. The advantage of this is that while the boiler is compact but its capacity is not small, hot water and heating range is not reduced because of the small volume. Main pressure connection element Henan local fast fuel gas boiler are as follows: 1, the main fire tube boiler pressure parts: the center back to the combustion chamber, boiler shell, a tube sheet, furnace, pipe tobacco, smoke box; 2 main pressure element water tube boilers: drum (drum), the waterwall tubes, boiler bank, serpentine tube header; 3, the main pressure connection element fuel gas boiler: the main welding, also part expansion may be.

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