Screw ground source heat pump unitIt is a new type of heat pump technology that utilizes the energy of shallow ambient temperature groundwater as an energy source. This technology can provide both heating and cooling simultaneously, and can provide hot water for daily life. It uses water and ground energy (groundwater, soil, or surface water) to exchange heat and cold as the heat source of a water source heat pump. In winter, the heat in the ground energy is "extracted" and supplied to indoor heating. At this time, the ground energy is the "heat source". In summer, the indoor heat is extracted and released into groundwater, soil, or surface water, and the ground energy is the "cold source"

Source. It does not emit any exhaust gas, wastewater, or debris to the outside world, making it an ideal 'green technology'. From the perspective of energy efficiency, it is an inexhaustible renewable energy source.

The screw type water (ground) source heat pump unit has the characteristics of high energy efficiency, compact structure, beautiful appearance, easy operation, and simple refrigeration system process. The refrigeration and heating process is achieved through the switching of water system pipelines. At present, water source heat pump units have been widely used in shopping malls, hotels, guesthouses, hospitals, factories, office buildings, northern centralized heating, industrial heat recovery and other occasions.

The Nuobing screw ground source heat pump unit mainly has the following characteristics:

1. Compact structure, smooth operation

unitThe condenser and dry evaporator both use high-efficiency heat transfer tubes, and the main engine adopts imported high-efficiency semi enclosed twin-screw compressors, which have many advantages such as compact structure, small volume, light weight, and small installation position. The semi closed twin-screw compressor has fewer moving parts, and the compressor adopts5：6Ultra efficient screw rotor, with no direct wear between rotors and high reliability. Due to the fact that screw machines are continuous compressors without pulsationWater (ground) source heat pump chiller unitIt has the characteristics of stable performance, low noise, small vibration, and smooth operation. Improved efficiency compared to reciprocating compressors20%—30%, has been obtainedIS09001International quality certification and patents from multiple European and American countries;

2. A comprehensive energy control system

The unit has a four level capacity control system and energy regulation:[100、75、50、25(or activated,0Automatically adjust the start and stop of the unit according to load changes, which is more energy-efficient;

3. Independent refrigeration cycle system

high-capacityScrew ground source heat pump unitHaving two or more independent refrigeration circuits, even if one circuit fails/Maintenance, the other circuit can also operate normally. Equipped with mutual backup function, especially suitable for use in air conditioning and industrial non-stop environments;

4. Easy and intuitive operation

The unit adopts a microcomputer programmable controller（PLCChinese or English display), touch screen display, select the operation according to the menu on the screen, and directly touch the display button on the screen with your finger to startWater (ground) source heat pump chiller unitThe screen can display the operating status of the water source heat pump unit at any time, and can display the parameters in two ways: graphics and text tables, making it clear at a glance;

5. Protection function of microcomputer controller

Equipped with protection against high compressor coil temperature, timed oil preheating and power on/off, cold water flow switch, and protection against low cold water outlet temperatureY- △ Protection against startup failure, high exhaust temperature, compressor overload, power loss memory function, frequent start stop protection, abnormal voltage protection, low oil level protection, high and low voltage protection, and other protection functions;

6. High degree of automation control:

Fully functional and capable of achievingScrew type water source heat pump unitStart stop program management, timed control, water pump management, full function fault alarm, and fault self diagnosis function. Simultaneously equippedRS485Communication interface, convenient for users to achieve centralized and remote monitoring of the unit;

7. Significant environmental benefits:

It is a heating and air conditioning system that utilizes surface water as a cold and heat source for energy conversion. Heating eliminates the need for boiler room systems such as coal, gas, and oil, eliminating the combustion process and avoiding pollution such as exhaust and discharge; When providing cooling, the cooling tower is omitted, avoiding the noise, mold pollution, and water consumption of the cooling tower;

8. energy conservation and environmental protection

The electricity used is a clean energy source, and a well-designed water source heat pump unit is equivalent to reducing the cost compared to air source heat pumps30%The above electricity consumption is equivalent to a reduction compared to electric heating70%The above electricity consumption. So, water source heat pumps not only save energy but also reduce and decrease the pollution emissions and greenhouse effect generated during the primary energy consumption process during power generation;

9. Easy to install

allScrew ground source heat pump unitAll components have been installed and tested in the factory, and refrigerant and refrigeration oil have been added. Users only need to connect the water and circuit to put them into use, reducing installation and debugging time;