Can air energy water heaters be applied in the Northeast region?

The principle of air energy water heater is similar to the principle of heat pump air conditioner, when the outdoor temperature is below zero, the work efficiency will drop significantly, the Northeast region may not be a big problem in summer, it may be difficult to do it in winter, and winter is the peak period of hot water use, I think it is not appropriate.

The reason for the working principle, so its requirements for outdoor ambient temperature are relatively high, and the best working effect is the best when the outdoor temperature is above 25 degrees; When the outdoor ambient temperature is lower than 25 degrees, the energy-saving effect is not very ideal; When the outdoor ambient temperature is lower than 10 degrees, the compressor sometimes stops heating, and according to the conservation of energy, it basically becomes the heating method of the storage water heater. Therefore, air energy water heaters can still be used in the south of the Yangtze River, but they must not be used in the north of the Yangtze River, especially in the northeast region! Because of its working principle and the needs of heating methods, air energy water heaters and compressors must be installed outdoors, indoor installation of water storage tanks or balcony installation, which brings requirements for the installation environment, troublesome installation, huge volume, occupies space, and is not beautiful.

Because it is the same as the traditional storage electric water heater, it has a large volume, the water temperature is high, and the water is still, so there must be scale, and the maintenance cost is relatively high.

Because it is based on the principle of air conditioning, the technical problems such as frosting, fouling damage to the exchanger and short compressor life have not been completely solved until now.

Because of its working principle and heating method, in fact, it is an air conditioner plus a storage electric water heater, so its manufacturing cost and sales are very high, one-time investment is large, from the perspective of the final hot water, it is really not saving! Because the sales of an electric water heater are normally more than 2,000 yuan, according to the service life of 8 years stipulated by the state, the annual electricity bill of a family of three is only more than 400 yuan, and it is less than 4,000 yuan in 8 years. And an air energy water heater is often more than 10,000 yuan, so the air energy water heater is really not energy-saving compared to the whole!

The minimum temperature condition of the national standard for air energy water heaters is -7°, if the extreme low temperature is lower than minus 7 degrees in winter, it is recommended not to use air energy hot water equipment.

Air energy water heaters can definitely be used in the Northeast, and Finney has installed many projects in the Northeast.

Although he said that, the climate in the Northeast is still not suitable for using this kind of water heater, especially in winter, the temperature is definitely not good, and many people have tried it.

OK. 1. Gas water heaters can also be used in the colder northeast regions, but it is best to connect the exhaust pipe when installing in Chazhaoshan, which is to avoid the problem of carbon dioxide poisoning due to poor ventilation. 2. If the gas water heater is used because the temperature is relatively low, the load of the gas water heater will be large because of the low temperature, that is to say, the lower the temperature, the greater the gas consumption of the water heater.

Suggested precautions are:

1. When using gas water heaters, it is necessary to ensure indoor ventilation, and only good indoor ventilation can ensure safety.

2. If the water heater is not used for a long time, the power must be cut off first, and then the water storage in the water heater must be emptied, so as to ensure the service life of the water heater.

3. In the process of using the water heater, it is necessary to pay attention to the thorough cleaning of the scale every six months, which can increase the service life of the water heater.

4. Usually do not hang items on the air supply and exhaust ports of the water heater, otherwise the air cannot be circulated smoothly, especially do not hang flammable products such as towels and rags, and pay attention to the door and window exhaust fans to open.

5. The hose of the gas water heater usually needs to be replaced regularly, otherwise it is easy to cause pipeline leakage, resulting in poisoning.

1.Gas water heaters can also be used in the cold Northeast region, but it is best to connect the exhaust pipe when installing. This is to avoid the problem of carbon dioxide poisoning due to poor ventilation.

2.If you use a gas hot water core because the temperature is relatively low, the load of the gas water heater will become larger because of the low temperature, that is to say, the lower the temperature, the greater the gas consumption per mu of the water heater.

The recommendations are as follows:1When using a gas water heater, be sure to ensure that the room is ventilated. Only good indoor ventilation can ensure safety.

2.If you don't use the water heater for a long time, be sure to turn off the power first and then drain the water in the water heater, so as to ensure the service life of the water heater.

3.During the use of the water heater, it is necessary to pay attention to thoroughly cleaning the scale every six months, which can increase the service life of the water heater.

4.Do not hang items on the air supply and exhaust outlets of the water heater, otherwise the air will not be able to circulate smoothly. In particular, do not hang flammable items such as towels and rags. , quickly judge and pay attention to open the door and window exhaust fan.

5.The hoses of gas water heaters usually need to be replaced regularly, otherwise it is easy to cause pipe leakage and cause poisoning problems.

With the influence of national policies and the efforts to promote air energy brands, air energy heat pumps have a fairly high penetration rate in Northeast China. Schools, factories, hotels, guesthouses, office buildings and other places in many areas of Northeast China have installed air energy heat pumps as heating, cooling, and hot water equipment for buildings.

However, some people are worried that the heating efficiency of the air energy heat pump is directly proportional to the outdoor temperature, and the Northeast is so cold in winter, even if the air energy heat pump can work normally, its power consumption will become larger, which will lead to an increase in the cost of heating, which does not meet the needs of the operation. Is it easy to use air energy heat pump heating in Northeast China?

In order to test whether this statement is true, a staff member conducted a follow-up investigation in 2017 on an air energy heat pump case in Shenyang, Liaoning Province, Swissotel Dongjia Shenyang. Swissotel Best East is located in Huanghe North Street, Huanggu District, Shenyang, where the local climate is cold in winter, and the winter cold period is long, nearly six months. January is the coldest month in Shenyang, with an average temperature of -12 and an extreme temperature of -38.

Northeast with air energy heat pump heating effect

In August 2017, the hotel chose ultra-low temperature air energy heat pump to provide cooling, heating and hot water services for the hotel. On October 20, 2017, the heat pump system was officially installed and put into operation, and began to provide heating and hot water services for the hotel's 30,000 square meters of buildings (including guest rooms, swimming pools, and swimming pools).

In November 2017 and March of the following year, 2-3 heat pump units were opened in rotation, with a heating return water temperature of 36, an average daily working time of about 8 hours, and an indoor temperature of 24-26 in the guest room; In January 2018, Shenyang experienced the largest cold wave in the past 5 years, with the lowest temperature below -25 for 7 consecutive days, the maximum number of heating heat pump units turned on at the same time was 11, the average daily working time was about 16-20 hours, the heating return water temperature was set at 40, and the indoor temperature of the guest room was above 23.

At the end of April 2018, the heating of the hotel ended. According to the hotel, after adding manpower, management and other expenses for electricity, the heating cost per square meter of the hotel is 28 yuan, which is 4 yuan less than municipal heating (32 yuan per square meter for non-resident heating in Shenyang). After a winter, the air energy heat pump saved 120,000 yuan in heating costs for the hotel, which is very in line with the needs of hotel operations.

It is understood that at present, there is a technology called "jet enthalpy increase" in the air energy industry, which can make the air energy heat pump work normally in extremely cold weather.

When it comes to "jet enthalpy" technology, we have to mention jet enthalpy compressors. This is the latest generation of Copeland compressor company's patented scroll compressor technology, which uses this technology and has one more suction port than ordinary compressors. When the compressor is working, a part of the gas at intermediate pressure is sucked in through the intermediate pressure suction hole, mixed with the partially compressed refrigerant and then compressed, and a single compressor is used to achieve two-stage compression, so that the refrigerant flow in the condenser increases, and the enthalpy difference of the main circulation circuit is increased, so as to improve the heating capacity of the compressor, so that the air energy heat pump equipped with the "jet enthalpy" compressor can work normally in a low temperature environment.

The air energy water heater can be used normally in the northern winter, the working temperature range of the air energy water heater is -5 °C-45 °C, and the compressor is easy to break below -5 °C, which is not conducive to the production of hot water.

There is heating in the northern region, and the indoor temperature is generally not lower than 18 °C, and the machine installed indoors can be operated, so consumers in the northern region do not have to worry about not being able to use air energy water heaters in winter.

The air source heat pump water heater transports the heat in the air to the water through the refrigerant, the traditional electric water heater and gas water heater obtain heat energy by consuming gas and electric energy, and the air energy water heater achieves the purpose of heating water by absorbing the heat in the air, and can absorb about three times the heat energy to heat the water in the case of consuming the same electric energy.

Hello Answer! I have seen your answer, please wait patiently for a few minutes to ask you this question, I have seen this question, don't worry, wait a minute, in the next 5 minutes, I will answer the question you raised, the air source heat pump water heater transports the heat in the air to the water through the refrigerant, the traditional electric water heater and gas water heater obtain heat energy by consuming gas and electric energy, and the air energy water heater is by absorbing the heat in the air to achieve the purpose of heating water, With the same amount of electrical energy, it is possible to absorb about three times the amount of heat energy to heat water.