Four Points of View for Evaluating the Advantages and Disadvantages of Electric Heating System
As electric heating practitioners, they often face challenges from all aspects in the promotion of engineering projects. It is no doubt unscientific to consider the advantages and disadvantages of the heating system from a single dimension. We believe that preliminary design cost, operation cost, maintenance difficulty, safety and intelligence level should be comprehensively analyzed when selecting heating scheme. Now let's take a look at the advantages of electric heating in these aspects:
1。 Initial installation cost
From the point of view of indoor heat sink, there is no doubt that water heating (heat sink or floor heating pipe) seems to be cheap. However, the input of heat source, primary pipe network, secondary pipe network, booster station, heat exchange station, etc. shall be considered., In addition, the land cost and labor cost of the computer room constitute the comprehensive cost. Electric heating materials (equipment) and control system constitute the whole of electric heating. Using the existing power grid, there is no need to increase capacity, and the comprehensive cost advantage is obvious
2。 operating costs
Generally speaking, the cost of coal-fired central heating should be low. However, the waste of traditional central heating is serious, and the government has to provide financial subsidies, which is actually not cost-effective. In addition, the country gradually restricts coal-fired heating, and the cost will increase greatly after changing to gas-fired heating; Electric heating can realize room distribution, time sharing and personalized temperature setting, with huge energy-saving space. With the shortage of electricity to the current surplus, the improvement of building energy efficiency standards, the increase of environmental pressure, the tilt of national policies and other factors, the operating cost of electric heating will become more and more advantageous.
3。 Maintenance difficulty
Considering whether a heating system is good or not, one aspect we often ignore is its later maintenance cost. The traditional water heating and heat source equipment will be replaced on a large scale within a certain period of time (such as the large-scale replacement of Beijing heat supply network in 2015), so there are potential leaks and pipeline cleaning costs. The electric heating materials (heating cables) have the same service life as the buildings, and there is no maintenance cost. The cost of control system maintenance is almost negligible.
4。 Safe, easy to control and intelligent
The safety of heating system is undoubtedly an important consideration index. The safety of traditional coal-fired heating is guaranteed. However, there are some potential safety hazards in gas heating, and safety accidents occur every year. In addition, the water heating system has no advantages in control difficulty, temperature control accuracy and intelligent level. In comparison, electric heating is a safe heating method. The air switch and leakage protector make the heating without electric shock. The heating materials in the concrete pouring layer have no oxygen, no combustion conditions and no danger of fire; The perfect shielding system, coupled with the shielding of the cement layer, has no radiation interference. Low temperature radiation heating, not afraid of hot. PC based centralized control system and mobile phone APP software can realize automatic operation, reduce labor costs and enhance temperature control accuracy. Remote operation increases the flexibility of control.
