The measurement of Shandong spiral duct equipment can be analyzed from three parts. First of all, we should be familiar with and grasp how to correctly use the fan function measuring equipment to determine the fan function; second, we should grasp the detailed method and operation process of the test; finally, we should measure the results in practice, and convert the measured results into characteristic curves and parameters.

螺旋風管的功能很重要，因為其將會直接關系后后期設備的運用作用。因而咱們在選用螺旋風管之前，需求先對其的功能進行測定。這樣能夠充分了解設備的詳細功能，然后能夠合理的來運用它，來為咱們效勞。接下來咱們就一同來了解下這方面的詳細內容。

The function of the spiral duct is very important, because it will directly affect the operation of later stage equipment. So before we choose the spiral duct, we need to measure its function first. In this way, we can fully understand the detailed functions of the equipment, and then use it reasonably to serve us. Next, let's learn more about the details.

通常情況下，在對螺旋風管設備進行功能檢測的時分，還需求運用到專用的檢測設備。比方關于風機風量的檢測儀器一般是選用錐形進口集流器來進行丈量，其間試驗風管則首要包含有測驗管路、節流網及整流柵等。一般是使用聯通管，將壓力計與試驗風管的測壓力孔進行銜接。

Usually, when testing the function of spiral duct equipment, special testing equipment is also needed. For example, the measuring instruments for fan air volume are usually conical inlet collectors, during which the test air pipes mainly include test pipes, throttle networks and rectifier grids. In general, the use of Unicom pipe, the pressure gauge and the test tube pressure hole to connect.

需求留意的是，在進行銜接之前，需求先檢查一下測壓管路是否存在漏氣現象，如有則不能運用，必須要進行修整。然后在測力矩力臂上加上砝碼，使得力臂能夠保持水平。把待檢測的螺旋風管放置好，然后啟動電機。力臂如果不是水平狀況，那么再加砝碼，直水平停止，然后把空載力矩記錄下來。

Needs to note that before the connection, the need to check whether there is leakage phenomenon in the piezometric pipeline, if there is no use, must be repaired. Then the weights are added to the torque arm to keep the lever arm level. Place the spiral air duct to be checked and start the motor. If the arm is not in the horizontal state, then add weights until the horizontal stop, and then record the no-load moment.

在通過試驗丈量之后，應當依據所測得的數據成果進行整理和計算，然后制作出螺旋風管的空氣動力功能曲線。也能夠把試驗過程中得到的參數，轉換成無因次量，然后制作出螺旋風管的無因次功能曲線。

After the test measurement, the aerodynamic function curve of the helical duct should be made after sorting out and calculating according to the measured data. The parameters obtained during the test can also be converted into dimensionless variables, and then dimensionless function curves of spiral ducts can be made.