With the vigorous development of industrial production, the emission of industrial pollutants has more and more influence and harm on the atmosphere and natural environment. In order to protect the environment, the state has strengthened the supervision over the discharge of pollutants from industrial production, and the State Council has specially convened a meeting to deploy the national work of energy conservation, consumption reduction and emission reduction. There are many coking, carbon black, cement and other high-temperature smelting enterprises in our province. These enterprises will inevitably produce a lot of coke oven gas and heat energy in the production process, but most of these energy and heat energy are not reused, but wasted in different ways, which also causes atmospheric environmental pollution. In fact, in order to realize desulfurization, dust removal and purification, it is necessary to reduce the waste heat temperature to below 250 C, and all the discharged waste heat is at 250 C, so it is impossible to desulfurization and dust removal. Then, the only way is to reuse the waste heat, and power generation is the first choice to realize energy reuse, which not only improves the utilization rate of raw materials, but also purifies the emissions and greatly reduces the emissions of CO2 and SO2.
Why is there no enterprise to do such a good thing? The reason is that the power of the generator set using waste heat and gas is small, and it is not easy to be integrated into the large power grid, or it is located in weak ties area, and there is no network to enter. Spontaneous self-use, independent operation, but also suffer from unstable operation of generator sets. Therefore, it is difficult to produce, discharge and exceed the standard at present.
The research and development of integrated control system for stable operation of micro-grid with waste heat emission reduction is aimed at the problems of unstable operation and high energy consumption of self-owned power plants using waste heat to generate electricity and cogeneration. Mainly used in coking, carbon black, cement and other high-temperature smelting enterprises. The technological transformation of on-line digital condition detection and monitoring of microgrid equipment in self-provided power plants using waste heat power generation and cogeneration has completely changed the traditional method of adjusting load through valve exhaust, and realized stable operation, energy saving and emission reduction. Its application scope and area are mainly high-temperature smelting enterprises that produce waste heat and gas, and self-built power supply and consumption microgrid in weak areas, end of power grid or areas where power grid has not reached.
In view of this situation, Shanxi Bosek Power Technology Co., Ltd. is committed to developing integrated control system technology for stable operation of micro-grid with waste heat reduction power generation and power supply, which completely solves the unstable operation problem of these generator sets and truly realizes worry-free operation without network support. Known as the "revolutionary technology of self-owned power plants", it has the leading level in China. It is an energy-saving and consumption-reducing technology for electric power and power grid.
Its social and economic significance mainly lies in that it can provide a complete technical transformation solution to the above situation, so that the power generation facilities of these enterprises' waste heat self-provided power plants can give full play, save energy and be efficient, purify pollutant emissions, and power users can use the same quality of electricity as large power grids to meet production and living needs. In the technical transformation of 2×6000KW coal gangue self-contained power plant and the construction of 2× 12MW coking waste heat self-contained power plant of Qin Xin Company in Changzhi City, Shanxi Province, the waste heat emission reduction technology of microgrid self-stabilizing integrated control system for power generation and supply was adopted.
Facts eloquently show that the application of this technology to transform the traditional method of valve venting to adjust load in waste heat self-contained power plants has completely solved the disadvantages of self-contained power plants and made them run efficiently, save energy, safely and stably. It will surely drive a large number of high-temperature smelting enterprises such as coking, carbon black and cement to make full use of waste heat and waste gas to generate electricity. First, due to the full use of waste heat and waste gas, the utilization rate of raw materials is improved, the discharge of industrial pollutants is greatly reduced, the development potential of enterprises is enhanced, and the purpose of environmental protection is achieved. Second, due to the development of enterprises, new jobs have been created, which will benefit the people and enable them to effectively share the economic achievements of scientific and technological innovation, thus achieving good social and economic benefits and laying a solid economic foundation for building a harmonious society.
At present, the technology of integrated control system for stable operation of power generation and supply microgrid with waste heat reduction has obtained national invention patent (ZL 200610065761.0+0.0) and utility model patent (ZL200620008044X). Cha Xin of Shanxi Institute of Science and Technology Information said, "At present, there is no other open literature report with the same design and control method as this project." The control principle and system design of the power load regulation system developed in this project are novel. "The design is meticulous and ingenious, the technical application is comprehensive and reasonable, and the scheme is complete and effective, which can really solve the operation problem of the waste heat self-provided power plant. The waste heat coal gangue power plant of Changzhi Qin Xin Coal Coke Co., Ltd. has been running trouble-free for two years. Tested by China Electric Power Research Institute, its power quality fully meets the national standards. The scientific and technological project is supported by technical design scheme and guaranteed by manufacturing technology. It is an energy-saving and environmentally-friendly innovative technology, which can be widely used in high-temperature smelting enterprises such as coking, carbon black and cement, and waste heat generator sets. It is also an intermediate test and application transformation project of independent intellectual property rights of enterprises.
Formerly known as Shanxi Bosek Electric Power Technology Co., Ltd., now Shanxi Pan-controlled Microgrid Technology Co., Ltd., established in June 2006, is a joint-stock enterprise. In July, 2006, with the approval of Taiyuan High-tech Industrial Development Zone, it settled in Room 3A0 1 on the 4th floor of Danyang Science and Technology, No.9 Science and Technology Street, Taiyuan High-tech Zone. The registered capital is 5 million yuan, and the legal representative is Hou Yongzhong. Our company is the first high-tech industrial company in China that can reasonably and effectively solve the problem of peak shaving of self-provided power plants and systems with weak links. The company's business scope is: power engineering technology, electrical engineering, automation engineering research and development, computer control technology, electronic technology, telecommunications and communication equipment technology, energy-saving technical consulting services.
As a high-tech industrial company, the company leaders lead all employees to strictly follow the green economy industry and sustainable development strategy advocated by the state. Aiming at the problems of unstable peak regulation and high energy consumption in self-provided power plants such as waste heat, residual pressure, residual gas and biology, we are committed to the research and development of the power industry with the concept of "scientific and technological innovation, continuous progress and Excellence" and obtained two national patents. That is, "a power load regulation system and method" (invention patent number: 2006 100657 1.0) and "a power load regulation device" (utility model patent number: 200620008044X) are known as "revolutionary technology of power operation"! It is a high-tech, mainly used for technical transformation and efficient utilization of electric power industry and new energy. This technology has been appraised by authoritative experts in the power industry and is at the leading level in China.