Sea Water Heat Pump - Wastewater Heat Pump Unit
Ocean Water Source Heat Pumps (Wastewater Source Heat Pumps) are heat pump units that utilize seawater as the heat source to produce high-temperature hot water (with a maximum temperature of up to 100 degrees Celsius). They are primarily used in special geographical environments such as aquaculture farms with ocean or wastewater sources, coastal islands, industrial wastewater treatment plants, and water treatment facilities.
Seawater is rich in energy. Seawater source heat pumps, utilizing the principle of heat pumps, transfer low-grade thermal energy from seawater to high-grade thermal energy with minimal electrical input. Currently, seawater source heat pumps are used in several countries around the world, particularly on a large scale in Northern Europe. As a country with a long coastline and a large-scale marine aquaculture industry, China has also adopted this technology to some extent.
Our company's marine-source heat pumps are specifically designed for marine or wastewater sources with anti-corrosion features to overcome the high salinity and corrosiveness of seawater, primarily containing sodium chloride, magnesium chloride, and trace amounts of sodium sulfate and calcium sulfate, which are highly corrosive and hard. Preventing seawater corrosion is crucial in the design. Secondly, consideration is given to microbial nourishment. In coastal areas, tidal operations often lead to the movement and sedimentation of mud and sand, more pronounced in muddy beach regions. Meanwhile, marine附着 organisms are abundant, including seaweeds, bacteria, and microorganisms, which can reproduce in large numbers under appropriate conditions, attaching to water intake structures, pipes, and equipment, and easily causing blockages, posing a significant threat to the reliable operation of the system. The design of the intake mouth is extremely critical. Thirdly, the challenge of tidal changes. Tides and waves occur every 12 hours with a high tide followed by a low tide after 6 hours, causing water level changes of approximately 2-3 meters. Sea waves, caused by wind, are highly destructive. The design of the water intake structures must fully take into account the impact of tides and waves.
Our wastewater source heat pumps feature high energy efficiency ratios, compact structures, attractive appearances, ease of operation, and simple refrigeration system processes. The refrigeration and heating process is achieved through the pipeline switching of the water system. Currently, wastewater source heat pump units are widely used in shopping malls, hotels, inns, hospitals, factories, office buildings, northern centralized heating, industrial heat recovery, marine aquaculture, high-temperature hot water for industrial use, and other applications.
Ocean-source Heat Pumps (Wastewater-source Heat Pumps) feature the following characteristics:
- Compact structure, smooth operation
The condenser and dry evaporator of the unit both utilize high-efficiency heat transfer tubes. The main engine is equipped with an imported high-efficiency semi-hermetic twin-screw compressor, offering numerous advantages such as compact structure, small size, light weight, and minimal installation space. The semi-hermetic twin-screw compressor has fewer moving parts, using a 5:6 ultra-high-efficiency screw rotor, with no direct wear between rotors, ensuring high reliability. As the screw compressor is a continuous compressor without pulsation, the seawater-source heat pump unit features stable performance, low noise, minimal vibration, and smooth operation. It boasts a 20% to 30% efficiency improvement over reciprocating compressors and has obtained ISO 9001 international certification and patents in multiple countries in Europe and America.
- Robust energy control system
Wastewater source heat pumps feature a four-stage capacity control system, energy regulation: [100, 75, 50, 25 (or start, 0%], automatically adjust the unit's start and stop based on load changes for greater energy savings.
- Independent refrigeration cycle system
High-capacity screwOcean-source Heat Pump UnitEquipped with two or more independent refrigeration circuits, the system can continue to operate normally even if one circuit fails or requires maintenance. It features a backup function between circuits, making it particularly suitable for use in environments where continuous air conditioning or industrial operations are critical.
- Easy-to-use and intuitive
- Water-source (ground-source) heat pump chiller units. The screen can display the unit's operating status at any time, and can be shown in both graphical and text-table parameter formats for easy viewing.
- Microcontroller's protective functions
Protected against overheating of compressor winding temperature, oil pre-heating timer on/off, cold water flow switch, low outlet water temperature protection, Y-Δ start failure protection, exhaust temperature overheat protection, overload protection for compressor, power failure memory function, frequent start/stop protection, abnormal voltage protection, low oil level protection, high and low pressure protection, and other protective functions;
- High level of automation and control
Comprehensive features including start/stop program management for screw-type water (ground) source heat pump units, timing control, pump management, full-function fault alarms, and self-diagnosis capabilities. Equipped with an RS485 communication interface for convenient centralized and remote monitoring of the units by users.
- Significant environmental benefits:
An HVAC system that utilizes ground water as a source of heat and cold for energy conversion. It eliminates the need for coal, gas, and oil boiler systems during heating, thus avoiding combustion processes and pollution like smoke and wastewater discharge; during cooling, it omits cooling towers, thereby preventing noise, mold contamination, and water consumption.
- Energy-saving and environmentally friendly
The electrical energy used is a clean source, and the well-designed water-source heat pump unit consumes over 30% less electricity compared to air-source heat pumps, and over 70% less compared to electric heating. Therefore, while saving energy, water-source heat pumps also reduce and lower the pollution emissions and greenhouse gas effects generated during the primary energy consumption process of power generation.
- Easy to install
All wastewater source heat pump units have been fully assembled, tested, and charged with refrigerant and lubricating oil at the factory. Users can simply connect the water and electrical circuits for immediate operation, reducing installation and commissioning time.
In summary, our company's marine source heat pumps (wastewater source heat pumps) feature special material design with corrosion-resistant condensers, matched with high-efficiency refrigeration and control systems, offering high efficiency, stability, and energy savings, thereby earning widespread customer favor and recommendation for use.
