On the boiler industry development status of primary industrial furnace advanced level of China's unit energy consumption indicators have been close to or above the average level of advanced countries, but advanced and lagging indicators from larger, indicating that China's industrial furnace large energy saving potential. Expand the saving job is not a negative power supply of cut, but take advantage of the power potential, with minimal power consumption to maximize the economic benefits of skills. Two primary content of energy saving operation, including direct and immediate saving, energy is directly proceeds through the furnace power utilization, decreased product cost, thereby reducing the power consumption; direct energy cost of raw materials is lowered by, reducing the rejection rate, longer equipment life and other ways to save energy. Composed apparent from industrial furnace power, the power consumption in total more than 90% of the fuel consumption, the power consumption of only 7.9, the fuel energy as a heat source for various industrial furnaces is necessary. Excellent planning and proper operation of furnaces and furnace fuel compared with the same skill can get higher economic efficiency in thermal performance. Some furnace fuel saving measures, such as improving production management and operation method, the choice of light or ultra-lightweight refractory lining, the furnace proceeds sealing properties, improved incineration furnace construction and reasonable means disposed (electric furnace is a heating element) and the like, the same also applies to the energy requirements of industrial furnace electric furnace. Accompanied by vigorous development of our national economy, industrial boiler manufacturing industry in recent years has made considerable progress. Its outstanding performance, the professional standards increasingly standard, skill level and gradually move forward, continue to add product variety, economic planning significant expansion. However, during the occupation carried out in a high-speed, also paid a lot of resources and environmental values. As China's requirements for safety, energy conservation and environmental protection forward year after year, such as occupational health and safety in promoting the steady development, ensuring the safe operation of the industrial coal-fired boilers situation, to further accelerate the expansion of energy-saving and emission reduction work has become a professional industrial boilers future development of new issues and serious challenge faced. Our vertical boiler manufacturing industry has experienced decades of conduct, in particular to promote the reform and opening up drive onto the fast-track career carried out. Due to increasing demand for shopping malls, the number of production enterprises quickly add, career planning continues to expand, the boiler can supply a variety of different pressure levels and capacity, satisfaction of the needs of the current mall. Throughout the occupation to carry out industrial boiler, although impressive, but still hidden. First, the overall occupational skill level needs to move forward. The status and importance of industrial coal-fired boilers in the national economy and society for the well known. But with the current situation of high nationwide emissions corresponding proportion of the whole career of the great amount of power consumed, the soot, sulfur dioxide, carbon dioxide, oxides emissions accounted for, not only will now energy-efficient professional industrial coal-fired boilers, and construction of environmental indicators policy of resource-saving and environment-friendly society have a greater distance, and fully explain the huge energy saving potential career. Energy conservation is a worldwide problem, but also pay attention to the topic with the world. Shandong new wns oil fired steam boilers due to the large number of coal-fired boiler flue gas waste dust occur during use, it has a negative impact on the environment around the city to accelerate the transformation of governance and low efficiency and high pollution boiler equipment footsteps, to control the use of polluting fuels and other measures mainly summarized the choice of strict laws and regulation, as well as payment of the corresponding grant funds to accelerate the phase-out of these updates and boilers. The view from the future to carry out energy conservation is imperative to carry out the professional boiler, boiler practitioners and new power boiler companies will become the great collective benefit of the rectification plan, in order to stabilize the mall business, we must strengthen the new product R & D efforts, together with the skills level of products to add economic efficiency, promote vocational enterprise steady development. Now carry out the bottlenecks faced by the boiler career to focus on cause-related employees, forward boiler quality, enhance environmental performance, identify corrective path in line with China's national conditions, it has become an urgent important matter.
What if there is wear and tear in the natural gas boiler? Detailed inspection is the key, as is fuel management. According to the operation condition and time of natural gas boiler, we can plan reasonable wear inspection. When using fuel, we strictly control the granularity of coal and limestone. The size of bed material should be strictly controlled. Boiler waste should be disposed of. The waste residue of the boiler must be treated before it can be discharged. Natural gas boilers should be installed where heat is used, easy to install. The hot pipe should not be too long. It should have a good insulation. The pipe shall be tilted properly from the hot water outlet to the end. The water supply source shall be equipped with a control valve. To discharge exhaust gases, the chimney of the natural gas boiler should extend to the outside and the outlet should be 1.5 to 2M higher than that of the boiler. If we want to reduce the influence on the water wall tube, we can adjust the air pressure and air volume properly, and effectively reduce the wear of the water wall. Check time is usually standby or downtime. Items to be examined include wall wear, furnace sealing and smoke leakage. In case of wear and tear, repair and welding are required to ensure the normal operation of new wns oil fired steam boiler. Generally speaking, before combustion of natural gas boilers, fossil fuels, fossil fuels and bed and circulating materials should be filled in the combustion chamber at wind speed and strength. And stiffness of the air convection under full integration. Furnace bottom air device, inner core area upward. The movement in the outer ring region flows downwards along the water wall of the furnace, thus prolonging the residence time of the coal particles in the furnace. Mineral particles, a large number of ash powder and smoke contain a large number of fly ash particles, these continue to lead to rapid wear of water-cooled wall tube, make wall thickness wear thin, resulting in wear.
Principles of new wns oil fired steam boilers and solutions hydraulic external gear of Henan fast boiler's small series with you about the principles of steam boilers and solutions Steam Boiler hydraulic external gear in accordance with the fuel (electricity, oil, gas) can be divided into electric steam boilers, oil three kinds of steam boilers, gas and steam boiler; constructed according to the steam boiler can be divided into vertical, horizontal steam boiler, steam boiler compact than a single, double return of the vertical structure, large steam boiler return of more than three horizontal structure . If the classification according to top standards, in the form of steam boilers on the lot, would like to give an ordinary packaged boiler say four tons vapor. Water in the steam drum is heated to become vapor, fire emits heat in the furnace, it is the principle of the steam boiler. Steam boiler combustion section and drive means by a chain grate, a combustion chamber together with the pan rack frame formed on a grate composition. Four weeks envelope refractories. From coal fired into the hopper, the shutter coal front portion while sealing air control seam thickness. Blowing into the combustion chamber is a lower place, such steam boilers greater resistance, require forced air. Steam boiler cinder burn out, the rear portion of the grate by the "beak iron" discharged from the slag out of the furnace feeding machine. Steam boiler flue gas from the back of the boiler, the steam drum of a boiler return line before the smoke tube, returned by two return rear smoke tube, and then into the dust separating ashes, and then discharged through the chimney draft fan. These are the works of steam boilers, steam boilers run course, ultimately, other devices, such as induced draft fan not only bear the task of exhaust fumes, or negative pressure necessary for operation of the steam boiler. As well as pressure vessels, thermometer, safety valves, pressure gauges, pumps, steam pumps, and so on. They are essential for steam boiler work. Pump leaks. Gear pumps for leaks during operation, leading to its actual output is smaller than the theoretical flow of traffic. The main channel is leaking gear pump: through the gap between both surfaces and both side surfaces of the gear cover side leakage, accounting for 75% to 85% of the total leakage of the pump; radial gear tip circle between the inner hole and the pump CLEARANCE ; gap by engagement of the gear leak. The gear pump due to the presence of a leak, so that the output pressure do not increase, the influence of the use of a gear pump. In order to solve the low gear pump output pressure problems, may be employed on both sides of the elastic gear plus floating collar or baffle manner, to reduce the leakage of the gear pump, the gear pump to increase the output pressure. Radial force imbalance. In the gear pump during operation, the pressure acting on the outer gears are not equal, resulting in the gear and bearing at the axle radial imbalance force. This unbalanced force will accelerate the radial bearing wear and reduce the service life of the bearings, the gear shaft deformation can also cause friction with the inner hole of the addendum pump, pump damage, so that the pump does not work. The solution generally adopted is: ④ opening pressure balancing grooves to the pump, the high pressure oil introduced into the low pressure zone, but will increase the pump leak, the influence of the volumetric efficiency of the pump; ② size reduction oil pressure chamber, acting on the teeth the pressure area is reduced, thereby reducing the radial force imbalance.
To continue to improve urban air quality, to ensure the safety of winter heating, heating Dalian Municipal Construction Committee Office will strictly enforce the "Clean northern winter heating plan (2017-2021 years)" (the "Plan"), and strive to achieve clean heating.
"Plan" put forward, Dalian will gradually increase clean heating rate, adhere to clean coal-fired central heating, local conditions of use of electricity, natural gas, solar energy (3.250,0.04,1.25%), biomass and other clean energy heating, heat storage are encouraged to promote electric heating type and other ways; the existing thermal power plant, waste heat of industrial enterprises depth potential, priority use of heat source heating to achieve ultra-low emissions; research to develop clean energy heating pricing policies; supporting natural gas pipeline network to speed up urban construction, in the implementation of the gas source, guarantee under the premise of residents to use gas, natural gas heating in an orderly way.
Continue to optimize heat distribution. Speed up the construction of heating pipe network, out of network coverage and bulk coal fired boilers within range. In areas do not have the cogeneration district heating conditions, the existing multiple small coal-fired boilers, alternative construction of large-capacity coal-fired boilers in accordance with the principle of equal volume.
2018, the city built-up area basically integrated heating. 2019, the county level and above the basic integration of urban built-up area of heating. Before the end of 2020, according to the special plan for urban heating requirements, the county level and above in urban built-up area within the range of 300,000 kilowatts and heating cogeneration power plant over a radius of 15 kilometers, coal-fired boiler and does not meet the ultra-low emissions of coal-fired power plants all closed down integration.
2018, above the level of removal of industrial parks and 10 tons of small coal-fired boilers 49 units, 265 units and 10 tons of banned coal-fired boilers since 2014, new registrations. 2019, to improve the standard phase-out of coal-fired boiler, expand the scope to promote the elimination of urban built-up area of 20 steam tons / hour (or 14 MW) and coal-fired boilers. 2020, except in accordance with urban heating heating boiler special plans need to retain outside built-up areas at the county level and above cities 20 steam tons / hour (or 14 MW) and coal-fired boilers to be eliminated.
Gradual development of ultra-low emission ultra-low emission coal-fired power plant renovation, started in 2018 and the North Sea thermoelectric thermoelectric Taishan ultra-low emissions renovation, completed in 2019 Heung Hoi coal-fired thermoelectric power plants and other enterprises reform, in 2020 to complete a full ultra-low emission coal-fired plant transformation .Free Chat
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