Common compressed air supply pipeline problems can be divided into two types: one is design problem. Insufficient gas supply caused by too fine pipe network and unreasonable layout; The other is failure in the process of use, such as leakage at the pipe joint, hose rupture, condensate accumulation, poor operation of air source processing elements such as filters, etc. Excessive pressure loss is accompanied by continuous changes in the production scale and production process of the factory, and the main pipe network of compressed air is also constantly changed. In actual operation, the original pipeline is often changed. Due to the technical ability of factory personnel, site conditions and other reasons, there are often problems such as insufficient estimation of actual consumption and unreasonable pipeline layout, resulting in excessive burden of local pipeline network, large pressure loss or severe pressure fluctuation of local pipeline network.

In view of such problems, the common solutions are: the plant should appropriately enlarge the pipe network layout, arrange the annular main pipe network slightly larger than the large gas demand, the equipment gas is led out from the annular pipe network nearby, and the pulse gas equipment should be arranged with a buffer pipe nearby to reduce the local pressure fluctuation. There are generally two problems for the excessive pressure loss of local branch pipes. The first is that the gas consumption is too large and the pipeline cannot match. The second is that the end filter is not maintained properly and the pressure regulating valve fails, resulting in excessive pressure loss. Solution: reasonably design the size of the branch pipe network, try to reduce the pipe parts with large pressure loss such as elbows, reduced diameters and unnecessary valves. In addition, establish a maintenance system, regularly check and maintain the branch pipe valves, filters and other equipment, and timely repair and replace the parts with large pressure difference. At present, there are more and more types and materials of compressed air pipeline valves, and the preparation of valve models is more and more complex; The valve model shall generally indicate the valve type, driving mode, connection form, structural characteristics, nominal pressure, sealing surface material, valve body material and other elements.

The standardization of valve models provides convenience for the design, selection and distribution of valves. Although there is a unified standard for the preparation of valve models in China, it can not meet the needs of the development of valve industry gradually; At present, valve manufacturers generally adopt a unified numbering method; If the unified numbering method cannot be adopted, each manufacturer can formulate the numbering method according to its own situation. The selection of compressed air pipeline is the key to ensure the smooth implementation of the energy-saving scheme. It should be noted that selecting equipment with good performance is certainly a way, but it is not necessarily reasonable from the perspective of investment. The establishment of the selection scheme is highly professional and usually requires the help of professional companies.

Maintenance is to keep the equipment in good condition. This is what users need to focus on. The key to equipment management is to establish a complete routine inspection and maintenance system, confirm the status and performance of equipment according to certain standards, detect equipment abnormalities as early as possible, and prevent unexpected use of equipment. Maintenance is the maintenance of equipment according to the characteristics of equipment and at certain intervals to prevent equipment deterioration and prolong the service life of equipment. It is an important part of equipment management.