And a by-pass pipe with check valve is set between the inlet and outlet of circulating pump.
在循环泵进出口之间设置带止回阀的旁通管。
The protection against the water hammer is introduced in this paper as follows: changing the character of the pipeline network, protection of by-pass pipe 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。
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。
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.
介绍了采用土耳其头轧制椭圆管的成型辊孔型设计原则、设计步骤以及各架次成型辊参数的计算公式。
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.
介绍了采用土耳其头轧制椭圆管的成型辊孔型设计原则、设计步骤以及各架次成型辊参数的计算公式。
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