Cold-air test stand

冷气测试台

Abstract

The invention relates to a cold-air test stand which comprises a high-pressure regulator, a first high-pressure three-way valve, a first high-pressure four-way valve, a first pressure gauge and a high-pressure unloading valve. The air inlet of the high-pressure regulator is communicated with a high-pressure cold air source while the air outlet is communicated with the air inlet of the first high-pressure three-way valve, the first pressure gauge is installed on a first air outlet of the first high-pressure three-way valve while a second air outlet is communicated with the air inlet of the first high-pressure four-way valve, the high-pressure unloading valve is installed a first air outlet of the first high-pressure four-way valve while s second air outlet is communicated with two branches, namely a first high-pressure detection branch and a second high-pressure detection branch, and a low-pressure detection branch is communicated on a third air outlet. The cold-air test stand has the advantages that three test ports are arranged, part of the air of the high-pressure cold air source is converted into a low-pressure air source through a low-pressure regulator to enter a low-pressure test port, namely the third test port, pressure of the cold air is tested, test efficiency is improved, structure is simplified, and maintenance is facilitated.
本发明涉及一种冷气测试台,包括高压调压器、第一高压三通阀、第一高压四通阀、第一压力表和高压卸荷阀,所述的高压调压器的进气口与高压冷气源接通,出气口与第一高压三通阀的进气口接通,该第一高压三通阀的第一出气口上安装有第一压力表,第二出气口与第一高压四通阀的进气口连通,该第一高压四通阀的第一出气口上安装有高压卸荷阀,第二出气口连通两个支路,分别为第一高压测试支路和第二高压测试支路,第三出气口上连通有低压测试支路。本发明的优点是:具有三个测试口,而且高压冷气源的部分气体通过低压调节器后转化为低压气源进入低压测试口即第三测试口,对冷气的压力进行测试,提高了测试效率,结构简单,便于维护。

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