In scenarios such as municipal central heating, industrial park heating and large public building heating, the stability, energy efficiency and environmental performance of heating systems serve as core criteria for heating quality evaluation. Traditional coal-fired and gas-fired boilers suffer from high energy consumption, while conventional air-source heat pumps are susceptible to low ambient temperatures. As a heat-driven energy-saving heating device, the Lithium Bromide Absorption Heat Pump can effectively recover various waste low-temperature heat sources for heating purposes. Adaptable to severe cold regions and industrial waste heat scenarios, it has become a mature mainstream technology for low-carbon and energy-saving winter heating.

Different from conventional electrically compressed heat pumps, Lithium Bromide Absorption Heat Pumps require no high-speed compressor operation. The system relies on two environmentally friendly working media — water and lithium bromide aqueous solution — to complete the heat circulation within a fully sealed vacuum environment. Through physical phase change and solution absorption and regeneration reactions, the equipment realizes the recovery and upgrading of low-grade waste heat in an intuitive and comprehensible working principle. During operation, the system first collects low-temperature waste heat that would otherwise be directly discharged, including industrial circulating cooling water, process wastewater, boiler flue gas and geothermal tail water. Under vacuum and low-pressure conditions, water evaporates naturally to capture and utilize such low-grade waste heat. Subsequently, the high-concentration lithium bromide solution with strong water absorption capacity rapidly absorbs water vapor and releases substantial heat during the dilution process, generating a stable basic heat source for heating domestic hot water. To ensure continuous system circulation, auxiliary heat sources such as steam, high-temperature hot water and gas are adopted to heat the diluted lithium bromide solution, separate water vapor and reconcentrate the solution for cyclic and sustainable heat generation. The superposition of heat generated throughout the process produces high-temperature hot water that meets standard heating requirements. Essentially, the technology upgrades and reutilizes waste heat resources to achieve efficient thermal energy recycling.

Benefiting from its unique operating mechanism, the Lithium Bromide Absorption Heat Pump features superior adaptability to winter heating conditions, especially for long-duration, high-load and continuous heating demands. Its most prominent advantage is insensitivity to outdoor low temperatures. Unlike air-source heat pumps that commonly encounter heating capacity attenuation, defrosting shutdowns and unstable heating performance in severe cold weather, this heat pump maintains stable heating capacity regardless of ambient temperature fluctuations, fully satisfying the continuous heating demands in northern severe cold regions. In terms of energy conservation and environmental protection, the equipment mainly operates by recovering waste heat, with only a small amount of electric power consumed to drive pumps and maintain system circulation. Its power consumption is far lower than that of electric heating equipment, significantly reducing fossil fuel consumption for winter heating. By recycling waste heat from industrial and thermal systems, it minimizes energy waste and heating carbon emissions, complying with the energy-saving and low-carbon development trends of architectural and industrial heating systems.

The equipment also delivers outstanding safety performance and service life. Adopting water and lithium bromide aqueous solution as working media, the system contains no fluorine-based refrigerants or harmful substances, featuring non-flammability, non-explosiveness and non-toxicity, which adapts well to the closed operation of machine rooms in winter. Without high-speed mechanical moving parts, the equipment operates with low vibration and low noise, reducing mechanical wear and extending service life. It supports 24-hour uninterrupted stable operation and is applicable to heating loads of industrial parks and buildings of various scales.

Under winter heating conditions, the Lithium Bromide Absorption Heat Pump can switch to the dedicated heating mode through simple pipeline adjustment, stably supplying heating water at 55℃ to 85℃. It is compatible with all conventional heating terminals including radiators, floor heating systems and fan coil units, delivering uniform and stable water temperature with strong universal adaptability. Currently, the technology has been widely applied in diverse heating scenarios. In municipal thermal systems, thermal power plants adopt this equipment to recover waste heat from turbine circulating water, upgrade heat energy to supplement urban central heating and improve overall municipal heating capacity. Industrial parks recycle waste heat from production wastewater and equipment cooling systems to realize self-sufficient factory heating and reduce operational heating costs. Flue gas-type lithium bromide heat pumps can be matched with boiler systems to recover flue gas waste heat for auxiliary heating, cutting coal and gas consumption. Large public buildings such as hospitals, schools and commercial complexes generally adopt dual-mode units, which provide cooling in summer and switch to heating in winter, maximizing building energy utilization efficiency through multi-functional integration.

Overall, with reliable low-temperature heating performance, excellent energy-saving effects and wide scenario adaptability, Lithium Bromide Absorption Heat Pumps effectively compensate for the shortcomings of traditional boilers and air-source heat pumps, serving as a mature technology for waste heat resource utilization. Against the backdrop of normalized dual-carbon policies, the equipment is widely deployed in municipal heating, industrial parks and public buildings. It addresses the key pain points of high energy consumption, poor stability and high carbon emissions in traditional winter heating systems, providing a reliable technical solution for large-scale, energy-saving and low-carbon winter heating with prominent practical application value and broad promotion prospects.