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Class II Absorption Heat Pump

Efficient Waste Heat Upgrading Solution Empowering Industrial Green Transformation

Product Overview
The Class II absorption heat pump is a high-efficiency system driven by low-temperature waste heat. It is capable of upgrading waste hot water to a higher temperature for applications such as process heating or district heating. Utilizing lithium bromide aqueous solution as the working fluid, the heat pump is categorized into Class I and Class II types based on circulation method and operating conditions. The Class II model is particularly suitable for temperature-boosting scenarios without the need for an auxiliary heat source and is therefore also known as a “temperature boosting heat pump.”

Advantages

• Strong Temperature Boosting Capability: Capable of raising waste hot water temperature to 100°C without requiring any additional heat source.
• High Energy Efficiency: Dual-effect cycle design with a system COP of up to 2.4; supports both heating and cooling functions.
• Green and Low Carbon: Uses eco-friendly, fluorine-free working fluid; low noise, zero leakage, and low energy consumption.
• Intelligent Control: Equipped with AI V5.0 intelligent control system offering one-key start/stop, load regulation, solution concentration control, automatic air purge, and more.
• Stable and Reliable: Mature system structure with durable components, ideal for long-term continuous operation.

Working Principle 
Waste hot water enters the generator and evaporator either in sequence or in parallel. In the evaporator, heat is transferred from the waste water to the refrigerant water, which then evaporates and enters the absorber. There, the refrigerant vapor is absorbed by the concentrated lithium bromide solution, releasing heat to produce hot water.
The diluted solution is preheated through the heat exchanger and sent back to the generator, where it is reheated and reconcentrated by the waste hot water, then circulated back to the absorber.
Simultaneously, refrigerant vapor generated in the generator is condensed in the condenser into liquid water and pumped back to the evaporator by the refrigerant pump, forming a closed loop for continuous heat output.

Applications

• Low-temperature waste heat recovery in thermal power plants
• Process heating in oil drilling and chemical industries
• Waste heat utilization in the steel and metallurgy sector
• Urban district heating systems
• Integrated industrial parks requiring simultaneous heating and cooling

Hope Deepblue A/C, established in 1997 by the Continental Hope Group (CHG), stands at the forefront of energy-efficient cooling and heating solutions.

Located in the National High-Tech Zone in Chengdu, China, Hope Deepblue A/C is the largest manufacturer of lithium bromide (LiBr) absorption cooling and heating equipment. We are dedicated to research and development, manufacturing, sales, and service across the fields of air conditioning, refrigeration, district heating, and industrial waste heat utilization. Our product portfolio includes LiBr absorption chillers, absorption heat pumps, and vacuum boilers, which are trusted by clients in over 30 countries and regions worldwide.

Hope Deepblue Air-conditioning Manufacture Co., Ltd. was founded in 1997 as a national key high-tech enterprise funded by the Continental Hope Group. The company is located in the Chengdu High-tech West Zone, a national-level high-tech development zone, and serves as a major manufacturing base for refrigeration and heating equipment in western China. 

The company is dedicated to the full lifecycle of R&D, manufacturing, sales, and service of equipment and projects in the fields of absorption refrigeration, heat pumps, and industrial waste heat utilization. It is a one-stop provider of integrated system solutions. Its main products include lithium bromide absorption chillers, heat pumps, which are exported to numerous countries and regions around the world.