Greentech International (Zhangqiu) Co., Ltd.
Greentech Industry (Jinan) Co., Ltd.
Vacuum evaporation and concentration are common steps in chemical processing. By lowering the pressure inside the system, the boiling point of a liquid can be reduced. This allows some materials to evaporate at a lower temperature, which can be useful when the product is sensitive to heat.
The ZBK16 Roots vacuum pump can be used as part of this type of industrial vacuum system. It has a maximum flow capacity of 15 m³/min, a speed of 400 r/min, and a 22 kW motor. With a 200 mm inlet and outlet diameter, it can fit medium-sized industrial vacuum systems where stable gas removal is required.
Before looking at the application, it is useful to understand the basic ZBK16 specifications. The maximum flow capacity is 15 m³/min, while the rated speed is 400 r/min. The motor power is 22 kW, and the inlet and outlet diameter is 200 mm. The pump weighs about 900 kg.
The working vacuum is up to 53.3 × 10³ Pa, while the limit vacuum can reach 90.66 × 10³ Pa according to the supplied specifications. These values provide a starting point for system design, but the actual operating point should always be checked against the process conditions.
One common mistake is to choose a vacuum pump only by looking at its maximum flow. For a chemical evaporation system, this is rarely enough.
The pump must remove both vapor and non-condensable gases from the system. The actual gas load can change during the evaporation process. If the liquid produces a large amount of vapor, the vacuum system needs enough capacity to handle that load.
At the same time, the condenser should be able to condense most of the vapor before it reaches the vacuum pump. Otherwise, the pump may have to handle a much higher vapor load than expected.
This is why the working vacuum, vapor load, condenser performance, pipe resistance, and possible air leakage should all be considered when selecting a ZBK16 vacuum pump.
Chemical evaporation is one practical application for a ZBK16 Roots vacuum pump. In a typical system, the material is heated in an evaporator while the vacuum pump helps maintain a lower pressure.
As pressure decreases, the liquid can boil at a lower temperature. This can help remove water or other volatile components without using excessively high temperatures.
For chemical processing, the vacuum system may be used for raw material concentration, intermediate product processing, or final product concentration. The exact operating conditions depend on the material and process design.
Vacuum concentration is another area where the ZBK16 can be considered. For example, a chemical solution may need to be concentrated by removing part of its solvent.
The vacuum pump continuously removes gases from the system so that the required pressure can be maintained. However, the pump should not be selected based only on the size of the evaporation tank.
The actual solution concentration, evaporation rate, vapor temperature, condenser capacity, and required vacuum all affect the pump selection.
A properly designed system can also reduce the amount of vapor entering the pump by using an effective condenser and separator upstream.
Some chemical processes involve solvents that need to be recovered rather than released. In this case, a vacuum system can work together with a condenser to help collect the evaporated solvent.
The basic process is simple. The vacuum pump helps maintain the required pressure, while the condenser cools the vapor and turns it back into liquid. The recovered solvent can then be collected for reuse or further processing.
For this application, the gas composition is especially important. The designer should check whether the solvent vapor is corrosive, flammable, toxic, or likely to condense inside the vacuum line.
The pump material, sealing system, piping, condenser, separator, and other components should be selected according to the actual process conditions.
Resin, polymer, and fine chemical production can involve vacuum evaporation, drying, degassing, or concentration. These processes often require stable vacuum conditions rather than simply the lowest possible pressure.
The ZBK16 can be considered when the system requires a maximum flow capacity around 15 m³/min and the actual working conditions match the pump's operating range.
For continuous production, operators should also pay attention to pump temperature, vibration, inlet conditions, pipe resistance, and the condition of the vacuum system. Small air leaks can become a bigger problem when the system runs continuously.
Before selecting a ZBK16 vacuum pump for chemical processing, check the required working vacuum first. Then estimate the total gas and vapor load under real operating conditions.
It is also important to check the evaporation rate, condenser capacity, pipe diameter and length, system leakage, gas temperature, and the chemical properties of the process gas.
The 15 m³/min maximum flow of the ZBK16 is useful as a reference, but the pump should operate at the actual point required by the process rather than simply being run at its maximum capacity.
The ZBK16 Roots vacuum pump can be considered for chemical evaporation, vacuum concentration, solvent recovery, resin processing, and other industrial vacuum applications. Its 15 m³/min maximum flow, 400 r/min speed, 22 kW motor, and 200 mm inlet and outlet provide a practical basis for medium-sized vacuum systems.
The key is to match the pump with the complete process. If you know the required vacuum, evaporation rate, vapor load, condenser capacity, and operating conditions, it becomes much easier to determine whether the ZBK16 is the right fit for your chemical vacuum system.
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