Reasonable charging can extend the charging energy efficiency

Nowadays, the country is vigorously promoting the slogan of energy conservation and emission reduction, and many manufacturers are developing energy-saving electrical appliances. Do you know, now the profile radiator can also keep pace with the times, so that energy saving Oh, as long as you can according to our method to operate.

For office workers, it is not recommended to close all radiator valves after work. Because after completely closed, the room temperature will drop a lot. Just as the car frequently starts more fuel consumption, after the valve is opened after work, not only does it take several hours for the room temperature to reach comfort, but it also consumes more heat and is uneconomical. Therefore, the room temperature is set to about 12 ℃ when there is no one during the day. The specific setting is determined according to each person's feeling, and a certain room temperature is maintained, so that the temperature will not be too low when entering the room at night, which will affect the comfort.

For users who charge by area, users should minimize frequent opening and closing of doors and windows or open windows for ventilation during use, avoid hanging clothes or installing heating covers on profile radiators, and ensure normal heat dissipation of profile radiators. When the user goes out, the temperature control valve can be adjusted to a low temperature state, which can effectively maintain the indoor temperature and humidity, and more importantly, can greatly save energy consumption. According to the heat meter charge users use temperature control valve is a knack.

In the process of room decoration, in order to coordinate the overall decorative effect, if a cast iron radiator is used, a heating cover is generally installed. As a result, the profile radiator is blocked by the heating cover and the air circulation is hindered, which will cause the radiator to dissipate heat. The heat is greatly lost. In order to make the room reach the same temperature, it is necessary to increase the number of radiator plates, which is a waste of energy and money.

Outer surface painting

According to the regular practice, the outer surface of the radiator is coated with a metal powder coating (mostly silver powder paint), which will reduce the blackness of the radiator surface and reduce the radiation heat transfer capacity. However, any radiator, regardless of its structural shape, as long as the surface is coated with silver powder paint, its radiation capacity will be reduced to varying degrees.

From the results of the literature on the heat dissipation capacity of several different surface coatings of radiators commonly used in China, it can be seen that coating non-metallic coatings is more beneficial to the radiation and heat dissipation of radiators than coating silver powder paint. The traditional practice of using silver powder paint as a surface coating will weaken the heat dissipation capacity of the radiator, which is a problem that cannot be ignored. Some countries have long banned silver paint on the surface of the radiator, but its surface is sprayed with plastic, which is very necessary.

It is suggested that the surface of the exposed profile radiator should be coated with non-metallic coating, which can not only enhance the radiation heat dissipation of the profile radiator, but also make its appearance rich and diverse, which is conducive to the harmony between the radiator decoration and the room decoration.

The radiator installed on the outer wall has radiator heat transfer between the back and the cold wall. This part of heat is directly transferred to the outside through the outer wall, which is not beneficial to improve the room temperature. Therefore, it is the ineffective heat loss of the radiator. In order to reduce the building energy consumption, measures should be taken to prevent the ineffective heat loss. The research shows that when the thickness of the outer wall of the back is 240mm, the heat insulation analysis is made of a thin plate with high surface blackness and smoothness, and is fixed between the radiator and the cold wall of the back. as shown in fig. 2, it can not only isolate the radiation and heat release on the back of the radiator, but also maintain the convective heat release on the back, thus reducing the effective heat loss of the radiator heat release by about 6.4.

Setting of the heating hood

In interior decoration, the practice of installing heating cover on the radiator has been very common. Although this practice can improve the effect of interior decoration, it will generally reduce the heat dissipation capacity of the radiator, resulting in insufficient heat supply in winter. As shown in fig. 1, when the openings on the heating cover are the same and no louvers or grilles are provided, the heat dissipation reduction rate r increases from 8% to 18% as the opening a decreases. if the opening is equipped with grilles or louvers with a gap of 30mm, the reduction rate r will change from 10% to 21%. In some unreasonable decoration, even when A = 130mm and the opening is open, r = 20%, while when the opening is equipped with grilles or louvers, r reaches 40%.

For the radiator, after the installation of the heating cover, its radiation, to spread heat ratio changes, and may even completely isolate the radiation heat dissipation, its adverse effects are certain. And those who design the wrong heating cover, its heat reduction will be even greater. Common mistakes are that the opening of the heating cover is too small and the ventilation rate of the louver is very low. The opening position is set at will, regardless of the smoothness of air convection. Only one vent is opened, etc.

For the convector, the installation of heating cover should also be cautious. The reason is: ① the outer cover of the convective device has been done, and the installation of the heating cover is bound to increase the flow resistance, resulting in the reduction of convective heat dissipation. ② If the original cover is replaced by the heating cover processed on site, if there is no special technical guidance, the heat dissipation capacity of the convector will be affected due to the change of the matching relationship between the cover and the heat dissipation element.

In addition, after the heat charge, in order to enable users to adjust the room temperature according to their own needs, some radiators are equipped with temperature control valves. If the temperature control valves are installed in a closed heating cover together with the radiator, not only users cannot operate the temperature control valves arbitrarily, but also the adjustment control fails due to changes in the temperature sensing environment of the temperature control valves.

Considering the reliability of the use of profile radiators, cast iron radiators have good corrosion resistance, but they are large in volume and quality, and their styles are relatively old. In recent years, a small number of manufacturers to sell fake and shoddy products at low prices, resulting in heating profile radiator burst accidents. Therefore, when choosing profile radiators, choose products from manufacturers with good reputation and reliable quality.