Diaphragm pneumatic pumps are extremely versatile, easy -to -operate and low maintenance cost. However, depending on the fluid being transported and the temperature of this component. These pumps may end up freezing during their activity, which can cause numerous problems for the company.
This freezing caused by the accumulation of ice causes the obstruction of the exhaust system, which can impair its full functioning and even causing unexpected stops. For industries that depend on the productivity of your equipment, this problem can be extremely harmful.
The good news is that this problem can be avoided and its production can maintain its total functionality.
What to do in freezing cases?
The first step is to identify whether the problem that is causing your bomba It's really freezing. To do this, it is important to check some aspects, such as:
If your pump pressure fluctuations are erratic;
If its operation is interrupted but is resumed after defrosting;
If the process is taking longer than the common;
If at the touch the engine is with a low temperature;
If moisture in the compressed air is being used to be used for the pump operation;
If to maintain a constant cycle rate, adjustments to air supply or flow control must be made.
Identified the problem, we need to understand what can cause the diaphragm pneumatic pumps to freeze. As the compressed air crosses its pneumatic pump, it expands and its temperature can drop very fast. This process is more common in the use of pumps that work with high discharge pressures.
The result of this process is supersaturated air, which happens when cold air has more moisture than it can retain. This supersaturated air upon contact with a cold surface, as is the pump structure, can result in ice formation at impact points.
These points create a favorable environment for the accumulation of small ice particles. With this we can understand that this accumulation of ice is directly related to the surface temperature and the impact points where it can accumulate.
The surfaces that are directly facing compressed air entrance are often colder, favoring freezing within your pump.
First steps to avoid freezing within your equipment
The first step is to install a dryer on your air compressor so that the air used is always clean and dry. It can also be removed the silencer as ice usually accumulates more often in these components. However, although it solves the freezing problem, the pump will issue a higher noise, which can impair operation and quality in the workplace.
Viscous fluids They require a more intense functionality of the pneumatic diaphragm pump, so that ice can be cumulated more easily. The higher the input pressure of your pump, the lower the temperature in the exhaust. This means that as your pneumatic diaphragm pump It is closer to the maximum capacity, the lower the temperature and the higher the probability of freezing.
Other causes for pump freezing
In addition to this factor, it is important to consider that there are other reasons that can lead to freezing the equipment, such as:
The volume of air supplement is too high for application performed;
Long work cycle;
Cooler climate in the environment;
Presence of moisture in the compressed air used or poor quality area;
Lack of drying equipment;
High viscosity fluid pumping.
How to prevent freezing problems in your diaphragm pneumatic pump?
Here are some tips that we separated so that you can combat this problem in your industry:
Use a plastic silencer instead of the metal solution. Plastic, being less conductive, cannot be as cold as metal.
Use a larger silencer with a larger surface area. Although the air is at low temperature, the time required for freezing will be longer.
Remove moisture from compressed air using a dryer. It is possible to remove moisture from the compressed air and prevent it from becoming ice during pumping.
Use a lower speed, as the higher the speed, the greater the chance of freezing on the inside of the pump;
Reduce the conductivity of your silencer using an extension hose. With this, it is possible to increase the surface area and reduce conductivity.
Perform the frequent cleaning of the silencer;
Use correct input and output door sizes so that there is no excessive pressure. If a non -full capacity pump is being used, it may be necessary to use a larger size so that it is not necessary to require the maximum functionality. This way, it can get the lowest speed and reduce the chance of freezing.
Seek to use a stiffer plate with heat sink;
Seek to establish a way of escape with fewer curves to reduce impact points.
Direct the cold air exit directly to the silencer to reduce contact in impact zones and consequently, the formation of ice.
These tips can help reduce the incidence of ice within your pump and the problems arising from this process. If you need help, contact a duplation expert that we provide the best service to help you solve the problem.
