By CC 2019-11-29 16:54:57
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.
At present, the traditional fossil fuels such as coal, oil and natural gas have brought many problems such as environmental pollution and greenhouse effect to human beings.
There are many petrochemical and chlorine-alkali enterprises in China. Many petrochemical and methanol hydrogen production enterprises will produce a large amount of industrial tail gas with hydrogen content of 50%~60% or even more than 90%, which is called hydrogen-rich tail gas.
Hydrogen - rich tail gas is flammable, explosive, large, difficult to transport, and contains certain harmful organic matter, direct emission of environmental pollution;Treatment and utilization of hydrogen-rich tail gas is not only conducive to environmental protection, but also can save energy and reduce costs, thus improving the economic benefits of enterprises.
Many projects to increase the flue gas external circulation, according to the on-site reaction, the flue gas recirculated condensed water is a lot, in winter, the wind duct will even freeze.This is because the hot and humid smoke and combustion fresh air mixed, mixed steam beyond the mixed air temperature of the saturated humidity, the excess steam formed condensed water.CO2 in the flue gas will dissolve in the condensed water. If the acidic condensed water enters the burner or fan, it will easily corrode the components of the burner or fan.Measures must be taken to prevent condensation from entering the burner or fan.Add heat preservation for recirculating smoke pipe, reserve condensate water outlet, fresh air and preheat.
Condensate water discharge device shall be set at the lowest point of each section of the circulation flue. If there is a mixing bellows, condensate water discharge device shall be set on the mixing bellows. If necessary, condensate water discharge device may also be set on the fan.Condensate water discharge device recommended made of water seal type, the highest point of the water seal lower than the lowest point of the flue gas pipeline, for the convenience of condensate water discharge.
Integrated control system is that we proposed earlier today's more advanced control mode, is widely used in Europe and the us some dimensions industry in our country and demanding enterprises choose this control concept, its core idea is to put the boiler and burner control together unified programming, making accurate digital control, this control model to avoid the original control of shortcomings, such as: scattered, incompatible, multipoint multiple handling, economic problems.
Its advantages are obvious:
Software compatibility optimization, electronic control uniformity, greatly improve the control accuracy, energy saving
Design and manufacture consistency, safety and reliability and production cost savings
Single human-computer interface dialogue
Operating system intuition
Improve maneuverability and safety
Single professional debugging, to ensure safety and efficiency
Continuity of one-stop after-sales service, greatly improve the work efficiency, reduce the service cost for users
One-click accessories, software and supply upgrades are guaranteed
Enough about how to solve the trouble of burner
The insufficient capacity of the system to absorb clean energy is mainly reflected in the difference between the regulating capacity of the system and the actual demand for electricity load.In practice, the output of wind power, photovoltaic power and other new energy has a large fluctuation, and there is a big difference between the time period distribution and the electricity load. For example, wind power generally has a large output at night, but the electricity load is small at this time.Photovoltaic power output decreases rapidly in the evening, but the actual power load is approaching the evening peak.Hydropower output is affected by incoming water, flood season output is larger and dry period output is limited.In addition, considering the economy and safety, nuclear power generally undertakes the system basic charge and seldom participates in peak shaving.Under the comprehensive action of all the above factors, the actual dispatching and operation of the system is relatively difficult, and the adjustment ability becomes the key to determine the consumption level of clean energy.