At present, China is vigorously promoting low-carbon energy-saving and environmentally friendly living. Energy-saving, environmentally friendly and low-carbon daily necessities are increasingly popular with everyone. It is understood that in the water heater, the air-energy water heater known as the "fourth generation of water heaters" has gradually been recognized by everyone. The price of air energy water heaters on the market is generally higher, but it attracts a group of users due to its comfort, safety and energy saving. So how to use the air energy water heater to get the most energy saving?
First, the impact of installation methods on energy saving of air energy water heaters
The energy-saving effect of the air energy water heater will also be affected in the engineering installation method. From the different ways of use, it can be divided into two modes: all-weather water supply and regular water supply: all-weather water is mainly used in hotels, hotels, hospitals, etc., and regular water is mainly used in schools, factories and other places.
The installation method of regular water supply is relatively simple. Just install two circulating pipes on the water tank and the main unit for circulating heating. Then, after the hot water is used up in a certain period of time, re-add cold water to reheat. This method of installation is very energy efficient. There are many installation methods for all-weather water supply, such as direct-heating, recirculating, large-capacity tank mode, and so on.
Direct heating means that the hot water after the cold water is heated by the main unit can be used directly, and the outlet water temperature can reach between 45-55 °C. This principle is to control the amount of water replenishment through a throttling device. The water flow cannot fill the entire heat exchanger. Therefore, when the direct heating type of main engine is to be taken into consideration, the diameter of the heat exchanger should not be too large. Repeated debugging to select the most reasonable pipe diameter and water way.
The circulating heating type is that the main body heats the water in the water tank by circulating heating. When a part of the water in the water tank is used, the water tank is replenished and then recirculated and heated to a desired temperature. This installation method is relatively simple. . The size of the water tank mode means that the host first heats a small water tank to a certain temperature, then supplies all the water of the small water tank to the large water tank, and then replenishes the small water tank with cold water, and continuously circulates until the large water tank is filled with hot water. This practice is relatively complicated in terms of control, but there is no such phenomenon that the mainframe is heated at a high temperature like a circulating heating. Therefore, the energy saving effect is relatively high.
Second, reasonable water tank host matching is very important
It is understood that the matching of the host and the water tank is very important. Take the home machine as an example: using a large host with a small water tank will increase the investment cost and increase the one-time investment cost. However, due to the shortened working time of the host, the service life of the host is greatly improved; Large water tank, this configuration can reduce the cost, but the working time of the host will be significantly longer, which will affect the service life of the host. For example, using a host with a 300L water tank and a 2L host with a 300L water tank is very different in price. In this way, the time spent on small hosts will be significantly longer, and will be more noticeable in winter. In this way, it is necessary to add electric assistance. In the winter, it is necessary to rely on electricity to assist the function. Therefore, many users obviously feel that the electricity fee is similar to that of the electric water heater in winter. Therefore, in the water tank, power-assisted, although it can reduce the one-time cost, but the cost of use will be multiplied, not worth the loss, not only lost energy-saving effects, but also greatly reduced security. In fact, the household air-energy water heater can be electrically assisted if it is properly matched. For example, 1 unit with 100-150L water tank and 2 units with 200-500L water tank, which not only prolongs the service life of the main engine, but also achieves the energy-saving, environmentally friendly and safe performance of the air energy water heater group.
Matching of engineering machines. For example, a 6-ton water project, some engineering companies in order to win the project, the configuration is 5 machines with 6 tons of water, and some are 6 matches 6 tons. One month after the installation of the project, the cost is about 2,000 yuan, but it is different in winter, and the cost has changed to more than 6,000. Therefore, a small host with a large tonnage is not acceptable, if it is 6 tons of water, at least 10 host. In this way, the amount of water used per day can be guaranteed, and the cost of use can be saved.
Third, the insulation work of the pipeline water tank needs to be done well.
There are pipes and water tanks to keep warm. Pipe insulation includes the insulation of the circulation pipe and the hot water supply pipe and the return pipe. The insulation of the water pipe can be made of insulation cotton or polyurethane foam. Small pipe diameters are generally insulated with insulating cotton, and large pipes are insulated with polyurethane foam. When the ambient temperature is low, the water temperature drops extremely badly. If the water supply pipe has a water return system and does not heat the heating pipe and the return pipe, the wasted heat will increase greatly, and the energy efficiency ratio will drop sharply. The insulation of the water tank is also important. In general, the stainless steel insulated water tank will be foamed with 5mm insulation layer of polyurethane, and then a layer of stainless steel is added outside the insulation layer. This way the water tank insulation effect is good.
All in all, the energy-saving effect of the air-energy water heater is unquestionable, but due to the matching, installation and insulation factors of the unit, the air-energy water heater can not achieve the expected energy-saving effect. As long as it can be more reasonable in terms of configuration and insulation, the energy-saving effect of the air-energy water heater can be fully utilized to maximize energy savings.
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