What do you need to choose a ground source heat pump?

1. Performance characteristics of ground source heat pumps, installation and maintenance requirements of internal machines and pipelines.

1.The refrigeration and heating speed of ground source heat pump is relatively slow compared with that of fluorine machine. (To put it simply, because the fluorine machine is a heat exchange; The water machine is a secondary heat exchange, and the air supply temperature of the water machine is 3 4 degrees higher than that of the fluorine machine).

2.There is a certain hidden danger of water leakage in the pipeline. (Because it is impossible for a water pipe to achieve a leakage pressure test of about 40 kg like a copper pipe.) ）

3.The refrigeration principle is different, resulting in the ground source heat pump compared with the fluorine machine, the size and noise of the indoor unit are larger (the air supply temperature is higher than that of the fluorine machine, and the air supply volume needs to be increased and the larger fan is selected to ensure the effect), the general noise is 5 10db (a), and the height of the internal machine is 3 5 high.

4.In the future, the maintenance cost is high (because the installation of pipelines, whether they are connected with PPR pipes, steel pipes, and copper pipes, must be cleaned and maintained regularly, otherwise, the use effect will become worse and worse due to the small water flow of the system, and the power consumption will increase).

Second, the use habits, the energy saving of the ground source heat pump system has a great relationship with our daily use habits and the number of permanent residents.

If there are many permanent residents, and it is customary to turn on most of the internal units at the same time, it is more energy-saving to use the ground source heat pump system; If there are fewer permanent residents and are accustomed to turning on the air conditioner locally (people turn on the air conditioner in the room and turn off the air conditioner when they leave), the ground source heat pump is not as energy-efficient as the VRV system; Because the ground source heat pump is generally a fixed-frequency compressor, the current cannot be controlled, the power consumption cannot be controlled, and the configured water pump is generally running 24 hours a day, no matter how many internal units are opened, the same power consumption; The VRV system is generally a frequency converter, which can control the power consumption according to how much the internal machine is turned on.

3. Outdoor well area: ground source heat pump is through outdoor well drilling and soil heat exchange, according to the national standard GB 50366-2005, the spacing between buried wells in Shanghai is generally the larger the spacing, the better the effect), 300 construction area needs at least 80 well area, 400 construction area needs at least 110 well area, and the empirical calculation of the well area and the building area is about 1:1; Take townhouses as an example:

If the drilling area is too small, the use of air conditioning will be reduced year by year, and the system will not be able to operate normally after the year.

With its unique market feeling, in-depth professional research, high-end operation quality, and high recognition, Shanghai Nengrui Environmental Technology Co., Ltd. is based on the local area, and passes the latest comfort concept to Chinese users, menu-based system product selection, providing perfect comfortable life system products and convenient one-stop service, so as to save you many troubles such as product selection, business selection, project coordination, daily use and maintenance, and save your costs.

The most important is the influence of the geographical environment, which generally requires wells to be drilled, or there is surface water, such as lakes and rivers. Or is it just the first investment. However, compared with other traditional air conditioners, the initial investment can be saved from the operating costs.

1. There is open space outdoors to bury holes.

2. The geological results are suitable for burying holes, and some strata are pebbles or rock formations, and the cost is too high, and Party A generally can't accept it.

As a new type of air conditioning system that uses renewable energy, ground source heat pump has attracted a lot of attention because it is more energy-efficient than traditional air conditioners. However, in recent years, a large number of brands have emerged in the market, and the quality of the products is uneven and not guaranteed.

1. Whether Lun Hongyu has a production license, registered trademark certificate and 3C certification: ground source heat pump is a professional product with strict technical requirements, first of all, it depends on whether it has obtained the national industrial product production license, registered trademark certificate and 3C certification issued by the state, as a consumer should be cautious!

2. Whether the performance test report is qualified: the higher the COP value detected by the national authority, the more power saving it will be, and a good ground source heat pump is more than 10% higher than the ordinary one, so it can not be cheap when purchasing.

3. Type of compressor: The compressor is the heart of the heat pump unit. At present, the commercial household heat pump unit is the best compressor produced in Italy and the United States, and it is necessary to ensure that it is the original factory, so as to prevent some manufacturers from shoddy and repaired compressors.

Ground source heat pump technology is a technology that realizes the transfer of low-grade thermal energy from low-grade thermal energy to high-grade thermal energy by inputting a small amount of high-grade energy (such as electrical energy) into shallow terrestrial energy. The term "ground source heat pump" was first proposed by Swiss experts, but began in the United Kingdom and the United States, and is commonly used for heating and cooling.

Ground source heat pump technology has many advantages, renewable resources can be recycled, cost-effective and energy-efficient, and there is also low pollution. But its shortcomings are also indelible, and his determination determines that the use of ground source heat pumps will be limited to a certain extent. It is important to identify the determination of the source heat pump and arrange it according to local conditions.

Ground source heat pump disadvantage 1: site constraints

Ground source heat pump heat exchange is carried out underground, and heat transfer must be carried out by drilling wells, and the site is not large enough to complete the whole process. Therefore, energy exchange cannot be achieved without sufficient space. Therefore, the use of the site will be greatly limited, and some smaller houses cannot realize ground source heat pump heating and cooling.

Ground source heat pump disadvantage 2: high investment

The one-time investment in ground source heat pumps** is very high. There are often ground source heat pumps in high-grade goods, ground source heat pump air conditioning is much higher than the general air conditioning grade, its energy-saving efficiency can reach more than 40 percent, but the buried investment is just the opposite, more than 40 percent higher than the general air conditioner, the high investment part of the ground source heat pump is actually a high return investment, of course, this is under the premise that you have the ability to use the first air conditioner.

Ground source heat pump disadvantage 3: May pollute groundwater

This disadvantage is only available for some ground source heat pumps, especially those that use groundwater for heating and cooling. Due to the particularity of ground source heat pumps, groundwater pollution may be caused, and if the recharge is not good, it may even cause the foundation to subside.

Disadvantage 4: Soil thermal imbalance

This shortcoming is the biggest shortcoming and deficiency of the ground source heat pump at present, due to the large land area of our country, the climate of different regions is very different, the ground source heat pump is mainly used for cooling in the south, and is mainly used for heating in the north, so it has caused the excessive consumption of underground heat in the north, and the heat is over-injected into the ground in the south, and the heat is out of balance. Perennial will make the temperature of the soil liquid early soil unbalanced and destroy the ecology.

With the increase of economic income, the development of ground source heat pump technology and the support and promotion of the state in the ground source heat pump will make up for the shortcomings of the ground source heat pump one by one, and maximize its advantages, but no matter how it develops, the shortcomings of the ground source heat pump still exist objectively, the use of floor heating heat pump must be investigated by experts, draw relevant reasonable conclusions and plans for the installation of ground source heat pumps, and choose a professional installation company with technology and services, Only in this way can the contribution of ground source heat pumps to mankind be maximized.

You can get it for free

The purpose of the ground source heat pump is to effectively transfer the heat emitted by the ground source heat pump host to the soil through the reduction of the temperature of the circulating water of the underground pipe during refrigeration in summer. On the contrary, winter heating uses the circulating water in the buried heat exchange pipe to effectively absorb the temperature in the soil, so that the ground source heat pump host can be heated, and the heat exchange is carried out with the room through the capillary network system, so that the indoor temperature is kept around 24 26 in summer and 20 22 in winter. Generally speaking, the ground source heat pump system is buried deep underground, acting as the heart of the scientific and technological system, imitating the capillary layout of the human body through capillary radiation air conditioning, using water as the medium for cold and heat exchange, radiation to regulate the indoor temperature, and embedding the wall through the capillary network 3 4mm pipes to achieve uniform heating and cooling of the whole house, maintaining a comfortable temperature range of 20-22 in winter and 24-26 in summer, and truly realizing the wish of being at home all year round

Advantages of ground source heat pump air conditioning - high efficiency and energy saving.

It is 40% more energy-efficient than ordinary air conditioners

Ground source heat pump air conditioners mainly use constant energy from the ground, supplemented by electricity, which is very energy-saving. When operating in winter, the COP value is about the heat energy that can be obtained by putting in 1kW of electricity. When operating in summer, the COP value is about the heat energy that can be obtained by putting 1kW of electrical energy.

It is about 40% more energy-efficient than conventional air conditioning, about 50% more energy-efficient than boiler heating, and about 60% more energy-efficient than electric heating.

Advantages of ground source heat pump air conditioner - one machine for three purposes.

At the same time, it meets the needs of refrigeration and heating, and domestic hot water.

The ground source heat pump air-conditioning system can be used for heating, air conditioning, and domestic hot water, a multi-purpose machine, a set of systems can replace the original boiler and air conditioning two sets of devices, the unit is compact, saves building space, and reduces one-time investment.

Advantages of ground source heat pump air conditioner - comfortable and stable.

Unaffected by changes in ambient temperature.

When the ground source heat pump air conditioning unit is supplied with heating and cooling, the cold and hot water are exchanged through the fan coil unit (or floor pipe and wall buried pipe), and the cold and heating (or radiant heat) generated are much softer and more comfortable than those of conventional air conditioning; And the ground source heat pump air conditioner uses underground geothermal resources, which is almost not affected by the change of ambient temperature, and there is no ordinary heating attenuation, and the phenomenon of heating can not be heated.

Ground source heat pump air conditioning advantages - the use of renewable energy.

Environmentally friendly and clean. The shallow geothermal resources on the earth's surface used by ground source heat pump air conditioning are a clean and renewable energy source, with no combustion, no smoke exhaust, no waste, no carbon dioxide gas, no heat island effect, and no destruction of the ozone layer.

Ground source heat pump air conditioner advantage - low maintenance costs.

Long service life.

Ground source heat pump systems have fewer moving parts than conventional systems, resulting in reduced maintenance and greater reliability. Since the system is installed indoors, it is not exposed to wind and rain, and it is also protected from damage, extending the life expectancy. The underground part of the general ground source heat pump air conditioning system can be guaranteed for 50 years, and the aboveground part can be guaranteed for 30 years, which is twice the life of the general air conditioner.

Ground source heat pump air conditioner, the air conditioning outlet in summer is softer than ordinary air conditioner, and the elderly and children are not easy to get sick and uncomfortable.

There are no health hazards indoors.

Ordinary fluorine system** air conditioning system, using R410A refrigerant to transfer refrigerant, high-pressure refrigerant, long-term slow leakage is unavoidable, affecting the indoor environment, endangering the health of family members. The ground source heat pump system uses water as the medium to transfer cooling and heat, and there are no health and safety hazards.

In extreme weather, the system runs more stably.

Ordinary ** air conditioner, such as in the summer of the high temperature of more than 40, or in the winter of the low temperature of less than 0, the cooling and heating effect will be worse. The ground source heat pump system relies on the underground soil for heat exchange, which is not affected by the ambient temperature, and the operation is more stable, and the cooling and heating are not affected, and the room is still comfortable and pleasant.

The energy-saving effect is better.

In summer, ground source heat pump air conditioner is about 30% more energy-saving than ordinary ** air conditioner; For heating in winter, ground source heat pump floor heating is about 40% more energy-efficient than gas boiler floor heating.

Green and environmentally friendly. Ground source heat pump air conditioning and floor heating do not require boilers, and there is no exhaust gas, waste residue and waste water discharge, which is conducive to environmental protection.

Less ambient noise.

Ordinary ** air conditioner outdoor unit is installed in the open air, and the environmental noise is large, especially when it is running at night; In the installation room of the ground source heat pump external unit, the ambient noise is relatively small.

The life of the external unit is longer and the maintenance is more convenient.

The life of the outdoor unit of the ordinary ** air conditioner is about 10 years, and the external unit of the fluorine air conditioner corresponds to the internal unit one by one, which cannot be replaced casually, and it is difficult to maintain; The main engine life of ground source heat pump is usually about 15 years, and it is easy to repair and replace.

Comprehensive cost-effective.

The installation cost of the ground source heat pump air conditioning floor heating system may be slightly higher than that of ordinary ** air conditioning and floor heating, but considering the reduction in the use cost brought about by energy saving, the higher part of the installation cost can be recovered by saving electricity costs within 2-3 years.

Second, the main disadvantages of ground source heat pumps:

Larger garden sites are required.

When the villa area is less than 300 square meters, the initial investment cost is much higher than that of the ordinary air conditioning and floor heating system.

The technical and experienced requirements for the installation company are relatively high.

I hope it helps, remember to give it a thumbs up.

Benefits: Environmentally friendly and clean energy, especially for buildings that require LEED certification, should be very suitable.

Disadvantages: The stability of the system is greatly affected by the external geological conditions, and the initial investment is not low compared with the traditional air conditioning system.

From the owner's consideration, it is mainly economic, and from the society, it is mainly cleanliness.

Easy to install, small footprint, European-style compact design, home appliance design, beautiful and stylish. The unit adopts plate exchange, which has higher heat exchange efficiency and smaller unit size. No noise, no blowing feeling, more comfortable.

The actual water source heat pump system has covered the underground pipe ground source heat pump system, the groundwater ground source heat pump system and the surface water ground source heat pump system. Definition of a water source heat pump unit.

A kind of equipment that adopts water circulating in a common pipeline, water pumped from a well, lake or river or water circulating in an underground coil as a cold (heat) source to produce cold (hot) air or cold (hot) water; It includes a use-side heat exchange equipment, compressor, heat source side heat exchange equipment, with single cooling or cooling and heating functions. According to the form of side heat exchange equipment, the water source heat pump unit is divided into cold and hot air water source heat pump unit and cold and hot water water source heat pump unit, and according to the type of cold (heat) source, it is divided into water ring water source heat pump unit, groundwater source heat pump unit and underground loop water source heat pump unit.

For details, please refer to GB T 19409-2003 "Water Source Heat Pump Units".