Air duct back pressure problem analysis and solution

First、Description of the Problem

In some cases, backpressure problems can occur in air pipework, where the gas does not flow smoothly. Especially in long pipelines, back pressure problems often cause problems in the whole system, and in serious cases, the system can be paralysed.

Second、back pressure causes

1. Gas resistance is too large: gas through the pipeline will produce a certain resistance, short pipeline resistance is small, long pipeline resistance. When the length of the pipeline increases, the resistance will also increase, resulting in air can not flow.

2. Unreasonable pipeline design: the radial reduction of the pipeline, too many elbows, too many branches and other design problems will lead to gas in the pipeline is hindered, the formation of back pressure.

3. Insufficient valve opening: If the valve in the piping system is not fully open, it will affect the flow of gas, which will lead to back pressure problems.

Thirdly、Solutions

1. Adjust the piping design

In pipeline design, the length and resistance of the pipeline should be reduced as much as possible. At the same time, should avoid the design of pipeline shrinkage, too many elbows and other issues, increase the branch can be used in parallel with each other to reduce the size of the branch pipe calibre gap, which can increase the gas flow and reduce the back pressure.

2. Increase the valve

Increase the valve can help regulate the gas, so that the gas will not form obstacles in the flow. Especially in the case of unidirectional flow design of the pipeline, increase the appropriate number of valves is an effective control measure.

3. Selection of suitable pipe materials

Piping unreasonable materials can also lead to air piping back pressure problems, the choice of appropriate pipe material is critical to solving the back pressure problem. Plastic pipe diameter is larger, the pipe wall is flat, smooth, better circulation, suitable for long-distance gas transmission. For the air piping used in small and medium-sized compressors, the use of iron pipe material piping is a stable performance, high strength, durability and good choice.

Fourth, the conclusion

The emergence of the air pipeline back pressure problem has a certain negative impact on industrial operation. By analysing the causes of the back pressure problem, the problem can be solved effectively. In the daily pipeline transport, according to the specific situation, we can take the appropriate pipeline design, increase the appropriate valves, choose the appropriate pipe material and other ways to effectively solve the air pipeline back pressure problem.