In the design of heat transfer oil pump piping, should pay attention to the following: First, the heat transfer oil pump discharge pipe and its fittings should consider the maximum pressure that can be tolerated.Second, the heat transfer oil pump pipe layout should be arranged as straight pipe as much as possible Small pipe attachment and minimize the length of the pipe, you must turn when bending the elbow bend radius should be 3 to 5 times the pipe diameter, the angle is greater than 90 ° C. Third, the heat pump oil discharge side must be equipped with a valve (Relief valve) and check valve The valve is used to adjust the operating point of the pump and the check valve prevents the pump from reversing when the liquid is flowing backwards (when the liquid flows backwards, a great reverse pressure will be generated, causing the pump to be damaged ) Fourth, a reasonable choice of pipe diameter, pipe diameter, the same flow, the flow velocity is small, the resistance loss is small, but the price is high, the diameter of the heat transfer oil pump pipe will lead to a drastic increase in resistance loss, the selected thermal conductivity Pump pressure increases, with increased power, cost and operating costs have increased, so should be considered from a technical and economic point of view.
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