| 摘要 |
Disclosed are a fold-back coaxial gas booster pump and a gas pressure creating method, belonging to the field of gas pressure creation. The fold-back coaxial gas booster pump comprises a primary gas cylinder, a primary piston, a secondary gas cylinder serving as a primary piston connecting rod, a pressure rod, a gas pump cover, a secondary piston and a piston connecting rod, wherein the primary gas cylinder, the secondary gas cylinder and the piston connecting rod are coaxially installed, and the rear end of the piston connecting rod penetrates through a first follow-up one-way valve installed in the primary piston and is fixed on the bottom wall of the primary gas cylinder, so that the two pistons move in opposite directions to boost the pressure. The fold-back coaxial gas booster pump is composed of a two-stage compression gas pump, and can realize two stages of compression during one movement, so that the gas compression reaches a higher pressure range, the gas compression efficiency is improved, the power required for compressing gas is reduced, and the fold-back design enables the product to be miniaturized. The fold-back coaxial gas booster pump is pressure creating equipment which is light in weight, convenient to carry and high in pressure, and is suitable for field instrument calibration. |
