I heard it was from the last one. How much should I use to ask for it?
This is not out of the equipment manufacturers, the diameter of the requirements, the machine outside the machine (the diameter is in charge), inside the machine within the machine diameter (which is in charge of different brands), even the same power may not be the same caliber.
The central air conditioning refrigerant pipe does not need to calculate the pipe diameter, and the pipe joint size is limited at the factory equipment joint.The wind pipe of the wind system needs to calculate the pipe diameter. The air system uses the assumed velocity method: first, according to the scope specified in the national standard, the air pipe is assumed to be a speed V, and then the air flow is known.Then according to the wind pipe area (3600* = air / wind duct area that is assumed), and then to check the information, which can choose the wind pipe size, 0.23 is assumed before duct area, then you can choose a 500*500 wind pipe, this pipe is 0.25 of the area, and then to 0.25 into the formula: = air / wind speed (wind area *3600), namely: V= / air (0.25*3600), can be calculated by 500*500 tube after wind velocity.In the actual flow rate to meet the specifications of the premise, the diameter is the diameter of the preliminary design, of course, after the need for verification calculation.
The central air conditioning refrigerant pipe does not need to calculate the pipe diameter, and the pipe joint size is limited at the factory equipment joint. Wind system only need to calculate the diameter of the pipe.The wind system is the assumption that the flow velocity range according to GB standards, to assume a wind speed of V, and then through the air as is known, then according to the wind pipe area (3600* = air / wind duct area that is assumed), and then to check the information, the wind pipe what size can be selected, 0.23 is that before the wind area, then you can choose a 500*500 wind pipe, this pipe is 0.25 of the area, then put 0.25 into the formula: = air / wind speed (wind area *3600), namely: V= / air (0.25*3600), can be calculated by 500*500 tube after wind velocity.Finally, the pipe diameter is the diameter of the preliminary design under the premise that the actual flow rate meets the specifications. Of course, the calculation needs to be checked later.Seek acceptance as a satisfactory answer.
