Winter heating is a major event in the lives of people living in warm and cold regions. In China, there are many heating areas and populations in winter. The winter warmer is vast, and the heating methods used include coal, gas, fuel and smart electric heating . The existing heating methods are mainly coal-fired and plumbing. Due to the massive burning of mineral energy, environmental pollution and ecological damage have occurred. Moreover, for many years, China has always been a centralized heating mode, and buildings in the heating period are everywhere, no It is not hot, neglecting the needs of people, and lacking consideration of heating efficiency, heating cost factors and energy crisis awareness. In recent years, with the rapid development of China's electric power industry, in order to save costs, protect the environment, supply heat on demand, metering charges, electric heating technology is gradually prevailing.
1 smart electric heating diversification
In the 21st century, the concept of environmental protection has long been deeply rooted in the hearts of the people. The traditional coal-fired boilers have been gradually replaced by new heating methods due to the polluted environment. The pattern of single coal-fired heat sources has changed. Various new types of heating methods have emerged one after another.
If the heat transfer medium is used for water, there will be system running, dripping, dripping, leaking, softening of heating water and descaling of boilers and pipes, and it is inseparable from a large number of maintenance and care work. In particular, plumbing floor heating technology is a concealed project, which requires high installation quality and material requirements. It is easy to produce serious consequences and economic losses.
2 development of intelligent electric heating
China's power grid construction is constantly developing. The contradiction between power supply and demand in most areas has been relatively moderate. Therefore, electric heating has gradually been chosen and approved by people. The electrical energy can be completely converted into thermal energy without any transmission loss, and its energy efficiency is close to 100%. It is easy to realize electric heating, and there are not many equipments used, and temperature control of a single room can be realized. In general, electric heating can be roughly divided into the following ways: electric boilers, electric heating, electric heating membranes, heating cables, electric boilers using water as a medium, heating water heating tubes to achieve water temperature rise, so that the entire system continues Cycle through the heat sink to release heat to the room. Electric heating, electric heating film and heating cable are relatively simple, and there are no other auxiliary pipes and additional radiators. Heating requirements can be achieved as long as the power supply is combined with a heat sink. At present, in the field of heating, electric heating is in a range and area that is not accessible to the heat network, or a region with special requirements already accounts for a considerable proportion.
3 application significance of intelligent electric heating
China's cities still use coal and fuel in their use of energy. This not only causes energy consumption, but also causes severe environmental pollution, air pollution, suspended particulates in the air, sulfur dioxide, carbon monoxide, carbon dioxide, etc. The content is seriously exceeded, which causes great harm to human health and plant growth. To this end, major and medium-sized cities have successively issued policies to solve the problem of coal-fired pollution, and gradually banned the use of burning boilers and civilian coal stoves. In contrast, electrical energy has a strong advantage as a clean energy source.
The method of collectively heating buildings using electrical energy was first developed in industrialized countries with relatively abundant electric energy. In the past, due to insufficient power resources, it was difficult to adopt and promote electric heating. In recent years, with the continuous development of China's economy, power production has been greatly improved, and power supply has gradually become oversupply. With the continuous improvement of people's living standards, the demand for electricity is gradually increasing. In particular, the power curve shows a clear winter low and summer high, so the power sector has introduced policies to encourage winter electricity. While the country has increased its efforts to control environmental pollution, the superiority of electricity, a clean energy source, has also been recognized and widely used.
4 advantages of intelligent electric heating
4.1 Environmental protection
Smart electric heating uses electrical energy, which is a clean energy source, not only in the end users, but also in the form of power generation. Hydropower, wind power, nuclear power, etc. are all clean energy sources.
4.2 Comfortable and more user-friendly
Electric heating is heating up quickly, there is direct heating and heating through the medium. Especially when water is heated, people not only feel warm, but also feel very comfortable, which is very beneficial to human health. At present, the world's advanced electric heating is a low-temperature radiant electric heating film heating system, which has the advantages of moisture resistance, high pressure resistance, high toughness, wide temperature range, safe operation, low shrinkage rate, and convenient storage and transportation. In the United States, Canada, Norway and other developed countries, the application history has been more than 20 years, and it has been widely used. It entered China for the first time in the 1990s. It is a new type of heating that uses electricity as an energy source to transfer heat through infrared radiation.
4.3 On-demand heating
Most of the current heating system charging method is based on the building area. The heating end does not have effective and accurate heat regulation and measurement methods, neglecting people's subjective needs and lacking consideration of heating efficiency. Heating cost factors and energy crisis awareness, heating users have no energy-saving enthusiasm, resulting in a huge waste of energy. On-demand heating can be understood as heating according to people's immediate needs. It is more energy efficient than household heating.
The temperature is adjustable and convenient to meet the needs of different users. The user can increase or shorten the power-on time according to the indoor temperature condition, and the user can also according to the specific heating needs. Through manual adjustment or electronic automatic control, the amount of heat released can be adjusted to meet different requirements of users. For example, office workers can control the heating temperature at different times according to the time of going to work and at home; office buildings can set the heating temperature for different periods according to the office schedule; large residential areas can be considered for heating according to human needs. If a house is not occupied for a while, you can consider turning off the heat source or maintaining the minimum temperature; when you are heating on demand, you can control it by man's behavioral ability, which can be called behavioral energy conservation. Behavioral energy conservation can not only save family expenses, but also save society. With the country's energy resources. At the same time as heating on demand, metering charges are used to curb the waste of heating, thus achieving a virtuous circle.
4.4 Savings
The use of electric energy to generate heat for heating, the land utilization rate is high, eliminating the arrangement of buildings, structures and sites in the boiler room and the distance between other buildings and structures, and there is no need to worry about whether the drainage is good or not, whether the water will Flow into the basement and trench; low cost of investment. No need to invest in the construction costs of boiler rooms and pipelines and a series of cumbersome procedures and costs (installation, overhaul, annual inspection, etc.). It not only improves the land utilization rate and investment cost, but also saves the trouble of collecting heating fees, which is conducive to urban and rural housing development and property management. For coal-fired heating users, it saves coal, coal, and fire. Trivial things such as ashing, and cleaning the working and living environment.
5 Conclusion
With the continuous development of society, people's living standards are constantly improving, and the requirements for quality of life are also increasing. People's demand for heating has become extraordinarily outstanding, and heating has become a major issue related to environmental protection, national reform, development and social stability. There are new requirements for heating comfort, energy efficiency and safety. Reasonable use of intelligent electric heating . It has become an important direction for heating development in the future. People have a new type of energy-saving and environmentally-friendly electric heating products, which will bring more economic and social benefits.