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.
In generalized burner concept, domestic water heater, gas range, and even cigarette lighter can be considered as a burner.The way it works, a burner can be defined as a device that converts matter into heat by means of a chemical reaction called combustion -- that is, mixing air and fuel in a proper proportion through a premix unit so that it burns adequately.Burners can be classified according to their different properties.According to fuel mode, divided into: fuel oil burner, gas burner, light oil burner and dual fuel burner.Among them: in the specific application, fuel oil burner will be divided into light oil burner, heavy oil burner, etc.Gas burner is divided into natural gas burner, city gas burner and so on.According to the combustion control mode of the burner, it is divided into single-stage burner, double-stage burner and proportionally adjusted burner.According to fuel atomization mode, it can be divided into mechanical atomizer burner and medium atomizer burner.According to the structure is divided into: integral burner and split burner.The split burner is mainly used in industrial production, which is mainly characterized by the decomposition and installation of combustion system, air supply system, control system, etc. The machine is mainly suitable for large equipment or high temperature and other special working environment., in contrast, commercial use of the burner for mass, manufacture and market specialization degree requirements in the supply chain is not high, the product's market price are relatively cheap, and split type burner for professional requirements are relatively high, and most need professional installation team, marketing sales price is much higher compared to the same.
Five-low technology
Low –CO technology
Low-NOx technology
Low O2 technology
Low noise technology
Low power consumption technology
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.
Clean energy is an important force in energy transformation and development. Active consumption of clean energy is a powerful starting point for implementing the revolutionary strategy of energy production and consumption, building a clean, low nitrogen, safe and efficient modern energy system, and a key link for accelerating the construction of ecological civilization and realizing a beautiful China.
In recent years, China's clean energy industry has grown and grown, and its industrial scale and technical equipment level have reached a new level, making outstanding contributions to easing the constraints on energy and resources and the pressure on the ecological environment.But at the same time, the unbalanced and insufficient development of clean energy is also increasingly prominent. In particular, the consumption of clean energy is prominent, which has seriously restricted the healthy and sustainable development of the power industry.
——Author：CC