The CL series cone-type vacuum pumps adopt a cone-type distributor structure for suction and exhaust. Compared with the axial suction and exhaust of the planar-type vacuum pumps, the cross-sectional area of the suction and exhaust channels is larger, and the flow resistance is smaller. This makes them more energy-efficient when removing dry air and saturated water vapor. Moreover, the two ends of the impeller are sealed and have good rigidity.

Common operating conditions of the CL series vacuum pumps:

　　When an excessive amount of liquid is brought in

The design of any vacuum pump is to handle gases, such as air. Many types of vacuum pumps compress the gas from a lower pressure to the normal pressure at the outlet. However, few can handle "wet vacuum". If a large amount of liquid enters the pump body during compression along with the gas, it will be harmful.

However, the introduction of liquids does not cause any damage to the CL type vacuum pump. Whether it is occasional mud contamination or long-term liquid droplets, they can all be accepted by the pump, and the pump's performance is not affected. If necessary, there are many ways to recover the introduced liquids.

　　When the gas contains solid particles

The CL type vacuum pump also allows the introduction of solid particles at the inlet. Of course, abrasive materials and large solid particles are not included in this category of solids. Because abrasive materials will shorten the service life of the pump, and large solid particles will cause damage to the pump. They need to be filtered out in advance. However, the CL vacuum pump allows other solids to enter the vacuum pump, which is also an important reason for choosing this type of vacuum pump.

For instance, on the vacuum lines of paper mills, there will be paper fibers. The coating devices in textile factories must deal with textile fibers. In many vacuum systems of chemical, pharmaceutical and food industries, there are often pastes or soft substances. The successful application of CL vacuum pumps has been seen in situations where similar problems exist.

　　When the gas is corrosive

Many factors contribute to the corrosion resistance of the CL type vacuum pump. Firstly, there are no components in the pump that require lubrication, so there is no need to consider the damage caused by chemical reagents or the emulsification of lubricants. Moreover, there are many methods to protect the pump from chemical erosion by using working fluid.

One approach is to select a working fluid that undergoes a neutralization reaction with the corrosive gas; the other method is to choose a neutral liquid relative to the corrosive gas, and dilute the corrosive gas to protect the metal components of the pump.

　　When steam needs to be recovered

The gases processed by the vacuum system usually need to be recovered rather than being released into the atmosphere. This is mainly because these gases are the products of production or have value for recycling and reuse. Sometimes, we must recover explosive, irritating and toxic gases to prevent air pollution.

When the gas is in a vapor state in a vacuum environment, the CL vacuum pump can be used as a condenser. The condensed liquid cooled in the heat exchanger is the working fluid of the pump. Some of the working fluid can be sprayed into the pump before the suction port to condense the saturated vapor before the inlet. This not only enhances the pump's ability but also improves its efficiency.

　　When you require stable operation

Since there are no pressure pulses during the operation of the CL vacuum pump, a buffer tank is not required. On the other hand, its stability is due to the mechanical operation of the pump. It has only one rotating component, namely the balancing rotor, which means that the costs for equipment installation and foundation are saved.

　　When you need reliability

The CL type vacuum pump is commonly used in scenarios where regular shutdown maintenance costs several tens of thousands of yuan per hour. In many installations, they do not require spare parts or pumps. Its reliability is also reflected in its extremely low maintenance costs.

The pump does not contain valves, rotating blade, pistons, gears, or the usual sealing gaskets and wear-reducing bearings. These components are externally connected. The materials and design have been fully verified. Each of our pumps undergoes strict testing before leaving the factory, so you can fully rely on it during your use.

Here are some simple flowcharts, which illustrate the application of CL type vacuum pumps in different devices. They are representative of the applications and the same principles apply to other aspects. For special cases, there are many solutions. The technology can be used to design specific systems to meet your requirements.

    It should be noted that the application in papermaking is not included here. This is not a omission, as it is a brief introduction and it also takes up a large amount of space. If needed, you can contact our company for technical consultation.

　　 Filtering

    During the filtration process, the CL type vacuum pump is used to draw the filtrate storage tank. The constant and pulsation-free vacuum level ensures that the filter cake is uniform and flat. A small compressor can be used to blow off the filter cake.

Solvent Recovery

Vacuum drying can remove the solvent vapor from solids. By using a CL type vacuum pump to bring the solvent vapor into contact with the cold liquid solvent, the pump itself can act as a partial condenser. The uncondensed vapor is separated by mechanical means and the recovered solvent is stored for reuse.

Dehumidification

The textiles coming out of the washing tank are damp. They pass through the grooved pipes, and the CL type vacuum pump extracts the moisture and a large amount of air from the extractor to maintain the continuous vacuum of the system. Any textile fibers brought into the mixture will not cause any problems. They can be removed along with the regular cleaning of the separator.

Condenser Vacuum Pumping

The maintenance and extraction of vacuum levels are related to the amount of non-condensable gas. At high vacuum levels, the CL vacuum pump is often used in series with an air ejector pump. At low vacuum levels, the ejector automatically acts as a bypass, and the CL vacuum pump directly sucks gas from the condenser. Compared with the steam ejector system, the start-up and maintenance operations can be automatically switched, while the steam ejector system requires manual operation.

Distributing water

When the height of the centrifugal pump is higher than its liquid inlet, the pump must be filled with liquid before it can be started. A vacuum water supply system can replace the foot valve. The vacuum water supply valve connects the starting system to the centrifugal pump. The water supply valve is a float valve. It automatically closes when the liquid level rises. At the highest point of all centrifugal pump inlets and on the pump body, there are venting ports. The water supply valve is connected to the pump at three points.

In addition, the CL vacuum pump is mainly used for the following purposes:

Power plant condenser vacuum pumping, wet flue gas desulfurization system of coal-fired power stations, compression of flammable and explosive special gases such as acetylene, ozone compression, gas recovery, vacuum distillation, vacuum dehydration, vacuum filtration, vacuum extrusion/vacuum molding, vacuum impregnation, vacuum extraction