Optimum design of diaphragm pump to avoid pressure

2022-08-06
  • Detail

Optimize the design of the diaphragm pump to avoid pressure reduction blockage

the driving device of the diaphragm pump will get stuck when it freezes, which is a long-term problem. When the amount of compressed air is reduced, the cooled moisture with it begins to freeze, and the problem will appear. When the compressed air system is depressurized, the air temperature can be reduced to -30 ℃. Some of the resulting ice particles only deepen friendship and will gather at the engine and muffler, causing the pump to jam until the ice particles melt

in order to solve the above problems, designers have developed various devices, such as heaters, hot water channels and other thawing methods. However, all these attempts without exception will increase the maintenance cost of the equipment. An engine technology developed by Ingersoll Rand for this problem can not only prevent water vapor from freezing and component blocking, but also improve the working efficiency of pump drive (Figure 1) and lapping steel precision

Figure 1 the optimized drive design can prevent the diaphragm pump from freezing and blocking. In addition,

this design also improves the working efficiency of the pump system

eliminate the wet and cold air in the shortest time

ingersoll Rand's solution is based on a new design, which allows the rapid development of polyurea spraying technology in the air to discharge the air from the working room as soon as possible. The exhaust air does not come into contact with key engine components, such as roller valve. This design function mainly relies on an innovative valve, namely the quick cut-off valve, to transfer the discharged wet and cold air in front of the larger main valve (Figure 2)

Figure 2 the integrated quick shut-off valve can prevent the decompressed air from contacting the key components of the pump.

the design of the traditional valve has uniform pressure distribution and not too strong conversion signal, which will cause problems in case of severe working conditions. Ingersoll Rand's plan is to use an asymmetric main valve to avoid the formation of a central position, resulting in the loss of regulation function. One side of the valve has a large diameter, while the other side has a small diameter, which will cause obvious pressure difference. For example, when pulling steel strands, special steel strand tension clamps are required. According to the manufacturer, this principle also applies to small air inlet pressure

improve efficiency with the help of U-shaped seals

Ingersoll Rand has also created a new idea in terms of studio sealing. The so-called D valve is sealed by a U-shaped seal on the control blade, which maximizes the energy efficiency. Such a structure can prevent air loss in the process of wet and cold air conversion. In order to prolong the service life, the seals are mainly made of pressure resistant materials, such as technical ceramics. In addition, it also uses special materials such as coated bushings to reduce friction and wear of the valve device. (end)

Copyright © 2011 JIN SHI