Vacuum Heat Pump Evaporator - Efficient Wastewater Treatment Solution

Plug-and-Play Efficiency for SMEs' Wastewater Reduction & Reuse
The Vacuum Heat Pump Evaporator is a cost-effective solution tailored for small and medium-sized enterprises (SMEs) to achieve wastewater volume reduction, emission reduction, and clean water reuse. With low investment, small footprint, and simple operation, it has become the first choice for treating small-flow wastewater in various industries. By leveraging heat pump technology to utilize air energy for evaporation and vacuum principle for low-temperature operation, it achieves over 90% energy savings, making wastewater treatment economical and efficient.

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What Is a Vacuum Heat Pump Evaporator?

The Vacuum Heat Pump Evaporator uses heat pump technology to provide energy required for evaporation, with energy consumption limited only to the electricity driving the compressor - thus significantly reducing energy usage. It applies the vacuum principle to lower the boiling temperature of the feed liquid to 35-40℃, enhancing operational safety and reliability.

Combined with forced circulation evaporation and crystallization technology, it concentrates the feed liquid and further performs crystallization treatment, suitable for handling crystalline materials and high-salt wastewater. For high-COD and scaling-prone materials, forced circulation evaporator or wiped-film stirred evaporator configurations are also available.

With a wastewater treatment capacity ranging from 10 to 600 kg/hour, it can adopt a combined mode of vacuum heat pump evaporation and drying to truly achieve zero liquid discharge (ZLD) for SMEs. Additionally, it enables recovery of clean water from wastewater for production reuse or discharge up to standard.

Key Advantages

Plug-and-Play & Energy-Saving

No additional supporting facilities required; plug-and-play design. Achieves over 90% energy saving compared to traditional equipment, greatly reducing operating costs.

Low-Temperature Evaporation

Vacuum degree reaches above -0.095Mpa, evaporation temperature controlled at 35-40℃. Suitable for heat-sensitive materials and reduces equipment corrosion.

Modular Design

Compact structure with small footprint. Quick assembly and easy operation, shortening the commissioning cycle.

Fully Automatic Operation

One-click start, with automatic feeding, discharging, and material shortage alarm functions. Minimal manual intervention is needed.

Stable & Low Failure Rate

Reliable operation with low failure rate, significantly reducing maintenance and upkeep costs.

Low Vibration & Low Noise

Adopts optimized structural design, ensuring quiet and stable operation without affecting the workshop environment.

Extended Equipment Lifespan

Low-temperature operation minimizes corrosion to equipment components, effectively extending the service life of the evaporator.

Cost-Effective ZLD Solution

Enables zero liquid discharge for SMEs with lower investment, realizing both environmental protection and economic benefits.

How It Works

After the feed liquid enters the evaporator, it is heated by the high-temperature medium provided by the heat pump. Under high vacuum conditions, the liquid boils and evaporates rapidly for concentration. Since the evaporation temperature does not exceed 40℃, only a small amount of electricity is consumed to achieve evaporation and concentration. The condensed water formed by steam condensation is collected and can be reused as clean water or discharged up to standard.

Technical Parameter

Types	Unit	QLK20	QLK30	QLK40	QLK50	QLK85	QLK120
Evaporation capacity	Liters/hr	20	30	40	50	85	120
Electric consumption	KWh/Liter water	0.25	0.23	0.2	0.18	0.16	0.15
Vacuum	Pa	8000	8000	8000	8000	8000	8000
Temperature	℃	38	38	38	38	38	38
Types	Unit	QLK150	QLK190	QLK250	QLK290	QLK390	QLK490	QLK620
Evaporation capacity	Liters/hr	150	190	250	290	390	490	620
Electric consumption	KWh/Liter water	0.15	0.15	0.15	0.15	0.15	0.15	0.15
Vacuum	Pa	8000	8000	8000	8000	8000	8000	8000
Temperature	℃	38	38	38	38	38	38	38

Application Fields

The Vacuum Heat Pump Evaporator is widely used in the concentration, crystallization, and drying of medium and low-volume wastewater in various industries, including but not limited to:

Key Applicable Wastewater Types

Printing and dyeing wastewater, emulsion wastewater, cleaning wastewater, electroplating wastewater, painting wastewater, high-salt wastewater, high-COD wastewater, membrane-concentrated wastewater, landfill leachate, pickling wastewater, etc.

Electroplating Wastewater

Adapts to the variable water quality and quantity of electroplating wastewater (related to process conditions, production load, etc.), effectively handling heavy metals and chemical additives.

Coating Wastewater

Efficiently treats toxic and harmful substances in coating wastewater, such as nitrites, phosphates, emulsified oil, surfactants, and heavy metal ions (Ni²⁺, Zn²⁺) from pre-treatment and undercoating processes.

It is the most economical way to treat various small-flow industrial and domestic wastewater, especially suitable for SMEs with limited investment and site conditions to achieve environmental protection goals.

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