HDPEGround source heat pump specialized pipes are a new type of product made from high-quality polyethylene resin as the main raw material, with necessary antioxidants, UV absorbers and other additives added, and extruded through processing. Work pressure is1.0Mpa-1.6MpaThe working temperature is-20℃-40℃, can be used forHDPEGround source heat pump system. Has the following performance points:

　　1、HDPEThe specialized pipes for ground source heat pumps have high tensile strength and are more common than ordinary onesPEThe water supply pipe has high pressure bearing capacity and low expansion under stress,PEGround source heat pump pipes and fittings have excellent resistance to environmental stress cracking and good creep resistance.

　　2Has good toughness and flexibility, strong adaptability to uneven and misaligned foundations, and can withstand harsh environments such as earthquakes and typhoons.

　　3Special additives are added to the raw materials to give the pipes more beneficial weather resistance than ordinary water supply pipes(Including UV resistance)And long-term thermal stability.

　　4Strong corrosion resistance, used for transporting corrosive media containing antifreeze and other substances without the need for anti-corrosion treatment, with a long service life.

　　5Smooth inner wall, low water flow resistance, high flow resistance, saving construction costs.

　　6Good wear resistance and abrasion resistance.

　　7、PHDPEThe thermal conductivity of the specialized pipes for ground source heat pumps is0.41w/m.kHas good thermal conductivity. At the same time, specialized pipes have good resistance to low temperature impact and can be used in-20℃-40Safe use within the temperature range of ℃, winter construction is not affected.

　　8Electric melting(Or hot melt)Convenient and reliable connection, easy construction and maintenance(During this period, the water supply may not be interrupted).

What are the advantages of ground source heat pump pipes?

1. Efficient and energy-saving, stable and reliable

The temperature of geothermal or shallow geothermal resources is relatively stable throughout the year, with a temperature difference of generally 17 degrees between soil and air. In winter, the temperature is higher than the ambient air temperature, and in summer, it is lower than the ambient air temperature. It is an excellent heat pump and air conditioning cold source. This temperature characteristic makes ground source heat pumps 40% to 60% more efficient than traditional air conditioning systems, thus saving energy and operating costs by about 40% to 50%. Usually, ground source heat pumps consume 1KW of energy, and users can obtain over 5KW of heat or over 4KW of cooling capacity, so we call it an energy-saving air conditioning system.

2. No environmental pollution

Compared with air source heat pumps, the pollutant emissions of ground source heat pumps are reduced by more than 40%, and compared with electric heating, they are reduced by more than 70%, truly achieving energy conservation and emission reduction.

3. Multi purpose machine

Ground source heat pump systems can provide heating and cooling, as well as hot water for daily use. One unit can be used for multiple purposes, and one system can replace two sets of devices or systems that previously used boilers and air conditioning.

4. Low maintenance costs

Ground source heat pump systems have fewer moving parts than conventional systems, thus reducing maintenance. The system is installed indoors, not exposed to wind and rain, and can also be protected from damage, making it more reliable and extending its lifespan.

5. Long service life

The underground buried pipes of ground source heat pumps are made of polyethylene and polypropylene plastic pipes, with a lifespan of up to 50 years. It has a lifespan 35 years longer than ordinary air conditioners.

6. Save space

Without cooling towers, boiler rooms, and other equipment, the valuable area occupied by boiler rooms and cooling towers is eliminated, generating additional economic benefits and improving the external image of the environment.

The energy source of ground source heat pump system comes from natural energy. It does not emit any exhaust gas, wastewater, or waste residue to the outside world, making it an ideal "green air conditioner". It is considered to be the most environmentally friendly and effective heating and cooling system currently available. This system can be applied in both cold and tropical regions. It can be widely applied in office buildings, hotels, schools, dormitories, hospitals, restaurants, shopping malls, villas, residential areas, and other fields.

7. Realized the circular utilization of water resources

The forms of ground source heat pump heat sources are diverse, whether it is clean and clear groundwater, seawater with large resources that cannot be efficiently utilized, domestic and industrial wastewater, or surface water, they can all be efficiently utilized to achieve the transfer of solar energy. Improved the recycling rate of water resources, which once solved the difficulties of sewage treatment and freshwater scarcity in China. At the same time, it avoids the consumption of renewable resources and achieves a sustainable, green and environmentally friendly development strategy.

The ground source heat pump system consists of three parts: outdoor system, indoor system, and machine room system. That is to say, the three in one ground source heat pump air conditioner that we often refer to.

Outdoor system of ground source heat pump system

The outdoor system of the ground source heat pump system is mainly composed of buried pipes and buried pipe fillers. Underground pipes are outdoor underground heat exchangers, which circulate precipitation underground through underground pipes and exchange heat underground. The filling material for buried pipes is an auxiliary material for buried pipes, which is used to achieve better heat exchange effect underground.

Indoor system of ground source heat pump system

The indoor system of the ground source heat pump system includes connecting water pipes, electric two-way valve components, fan coil units (air conditioning), and underfloor heating components. The main function of connecting water pipes is to transport hot and cold water.

The function of the electric two valve component is to control the flow of hot and cold water, as well as the disconnection and connection of water delivery.

Fan coil unit is a component used in ground source heat pump air conditioning, mainly for indoor heat exchange.

The main function of underfloor heating is to provide indoor heating.

Working principle of ground source heat pump system:

1. Cooling mode

In the cooling state, the compressor inside the ground source heat pump unit does work on the refrigerant, causing it to undergo a cycle of vapor-liquid conversion. The heat carried by the fan coil circulation is absorbed into the refrigerant through the evaporation of the refrigerant in the evaporator. At the same time, the refrigerant is condensed in the condenser, and the heat carried by the refrigerant is absorbed by the water circulation. Finally, the heat is transferred to groundwater, soil or groundwater through the water circulation. During the process of continuously transferring indoor heat to the underground, the room is cooled in the form of cold air below 13 ℃ through fan coil units.

2. Heating mode

In the heating state, the compressor performs work on the refrigerant and changes the direction of refrigerant flow through a directional valve. The heat in surface water, groundwater or soil is absorbed by the underground water circulation, and the heat in the water circulation is absorbed into the refrigerant through the evaporation of the refrigerant in the condenser. At the same time as the refrigerant circulates, the heat carried by the refrigerant is absorbed by the fan coil circulation through the condensation of the refrigerant in the evaporator. During the process of continuously transferring heat from underground to indoors, heating is provided in the form of hot air above 35 ℃.