A by-pass capillary tube was added on the discharge pipe behind the four-way valve and a tube was added in an accumulator in a heat pump system to solve the problem.
在热泵系统四通换向阀后的排气管上加旁通毛细管和在气液分离器中加过冷管。
2
The protection against the water hammer is introduced in this paper as follows: changing the character of the pipeline network, protection of by-passpipe and the air bottle.
介绍了几种常见的水击防护措施，如改变管网系统的特性、旁通管防护、空气罐防护等。
3
The article introduces forming roller pass design principle, design process and calculating formula of each layer former roller parameter in ellipse pipe rolled by turks-head roll.