The frequent occurrence of major climate disasters in the world in 2012 is the result of mankind
By CC 2019-12-04 16:26:45
Waste incineration power generation is an important new energy industry related to people's livelihood.China has basically clarified the development direction of industrialization and marketization of waste treatment from the perspective of industrial policy.Since 2016, the state has formulated a series of policies and measures to promote the sustainable and healthy development of waste incineration power generation. The National Energy Administration, the former ministry of environmental protection, and the ministry of housing and urban construction have also issued relevant documents to support the development of waste incineration power generation industry.
However, as a pre-work of garbage incineration power generation, the methods related to garbage classification and recycling have not been clarified and implemented, and there are not enough constraints and incentive mechanisms to make garbage classification universal, which cannot create good conditions for harmless garbage treatment and garbage incineration power generation.At the same time, the corresponding design, manufacturing specifications, standard boxes of various investment, tax, subsidies and other policies still need to be further improved, especially the garbage treatment subsidies policy, in the vicious competition appeared unstable phenomenon.It is the key to formulate corresponding preferential policies for waste incineration power generation in developed countries. Without preferential policies and various subsidies, it is difficult for waste incineration power generation to be industrialized.Therefore, the relevant laws and policies of waste incineration power generation industry and related policies, norms and economic policies are to be improved.
The frequent occurrence of major climate disasters in the world in 2012 is the result of mankind's increasingly profound understanding of the destructive effects of climate warming.Climate warming is caused by the uncontrolled use of fossil fuels by human beings, which increases the carbon dioxide content in the atmosphere year by year, strengthens the greenhouse effect and destroys the laws of atmospheric circulation.Now the world is exploring new energy sources to replace fossil energy and scientific ways of industrial production and application. Solar energy, wind energy and nuclear energy have been developed and utilized practically.However, the development and utilization technology of biomass industrial energy is just beginning and will last a long time.
Biomass energy comes from solar energy and CO2in the atmosphere. Plants absorb CO2and sunlight in the atmosphere during their growth and synthesize various organic substances, some of which are used by animals to form animal energy.When the organisms and their products are burned, they release energy and at the same time release the absorbed CO2into the atmosphere in equal amount.For the global atmosphere system, the CO2increment of this energy use to the atmosphere is zero, which is called carbon zero emission.There is a huge amount of biomass fuel on earth. If fully utilized, it will play an important role in reducing CO2emissions.The development, research and utilization of solid, liquid and gaseous fuels of plant straw are under development.
For large water tube boilers, mixing of FGR recirculated flue gas and fresh air is generally provided with mixing bellows.According to the different layout position is divided into pre - premix and post - premix.Pre-mixing is to arrange the mixing bellows in front of the blower, recirculating the flue gas and fresh air mixed, in the blower into the air, is sent to the burner to participate in combustion, in the mixed air into the air before the air duct set trap, exhaust condensed water, fan selection should also choose anti-corrosion fan.After premix, the mixed bellows are arranged in the blower, and the recirculated flue gas is fed into the mixed bellows through the recirculating blower, mixed with the fresh air from the blower, and sent to the burner for combustion.The commissioning condition of the blower should be good compared with the pre-premixed condition. However, a large amount of condensed water will be generated in the air duct, so the steam trap should be set at the low point of the mixing bellows and the smoke air duct.
Maintenance
The frame is fully movable; both the frame and the control system have full-open doors, so the machine can be maintained easily after moving the main frame forward and backward or opening those doors. Such quick and efficient maintenance service owes to the design experience of EBICO integration module system.
From the perspective of heat transfer calculation, the measures to reduce the smoke exhaust temperature are analyzed from the following aspects: increasing the heat exchange surface, improving the heat exchange efficiency of the heating surface, improving the heat exchange temperature difference by using a lower temperature source, and reducing the influence of corrosion on the heat exchange efficiency.As gas boiler host first meet the low nitrogen flame furnace volume and size requirements, the second host of convection heating surface is a main export in order to reduce the smoke temperature, general control in 150 ~ 250 ° C, in order to avoid the smoke temperature increases along with the flue design difficulty of heat preservation, high smoking temperature is too low will cause corrosion in furnace convection heating surface forming wall condensation, therefore, furnace domestic demand to design proper heating surface, the physical dimension more representative chamber size.Increasing the heat exchange surface should mainly consider increasing the heat exchange area of the equipment in the rear of the boiler, which is more favorable for rapidly reducing the exhaust temperature.The second is to have a lower inlet water temperature can be used for heat exchange temperature difference characteristics;Third, corrosion resistant materials can be used to improve its service life.The new structure of efficient heat exchange mainly adopts the form of staggered tube arrangement, efficient heat exchange finned tube, plate heat exchanger, etc., to increase the flue gas disturbance and contact surface, reduce the heat resistance of flue gas stratification, and improve the heat exchange efficiency of medium and flue gas.
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